CN110928078B - Display panel, preparation method thereof and display device - Google Patents
Display panel, preparation method thereof and display device Download PDFInfo
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- CN110928078B CN110928078B CN201911276813.2A CN201911276813A CN110928078B CN 110928078 B CN110928078 B CN 110928078B CN 201911276813 A CN201911276813 A CN 201911276813A CN 110928078 B CN110928078 B CN 110928078B
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- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- 239000000758 substrate Substances 0.000 claims abstract description 72
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 92
- 239000010931 gold Substances 0.000 claims description 92
- 229910052737 gold Inorganic materials 0.000 claims description 92
- 239000002184 metal Substances 0.000 claims description 20
- 229910052751 metal Inorganic materials 0.000 claims description 20
- 238000004519 manufacturing process Methods 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 14
- 238000001704 evaporation Methods 0.000 claims description 10
- 239000004973 liquid crystal related substance Substances 0.000 claims description 8
- 238000005520 cutting process Methods 0.000 claims description 6
- 230000005611 electricity Effects 0.000 abstract description 18
- 230000003068 static effect Effects 0.000 abstract description 18
- 230000002159 abnormal effect Effects 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 28
- 239000010410 layer Substances 0.000 description 21
- 230000000694 effects Effects 0.000 description 5
- 238000009413 insulation Methods 0.000 description 4
- 239000012790 adhesive layer Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
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- 239000011521 glass Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229920006254 polymer film Polymers 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1345—Conductors connecting electrodes to cell terminals
- G02F1/13452—Conductors connecting driver circuitry and terminals of panels
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1345—Conductors connecting electrodes to cell terminals
- G02F1/13456—Cell terminals located on one side of the display only
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- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention discloses a display panel, a preparation method thereof and a display device. The display panel comprises a display area and a binding area located on one side of the display area, the display panel further comprises a substrate base plate, a grounding signal binding terminal, a plurality of other signal binding terminals and a plurality of signal wires, the grounding signal binding terminal is arranged on one side of the substrate base plate, the signal wires are in one-to-one correspondence with the other signal binding terminals and are electrically connected, the flexible circuit board comprises a grounding binding golden finger, the grounding binding golden finger is connected with the grounding signal binding terminal, and the vertical projection of the grounding binding golden finger on the plane of the substrate base plate is not overlapped with the signal wires. The display panel, the preparation method thereof and the display device provided by the invention solve the problem that the display of the display panel is abnormal due to the fact that static electricity is released to a signal line area of the display panel through a grounding golden finger on a printed circuit board.
Description
Technical Field
The embodiment of the invention relates to the technical field of display, in particular to a display panel, a preparation method of the display panel and a display device.
Background
In recent years, display panels are widely used in mobile devices such as mobile phones, tablet computers, MP3, and MP 4. In the manufacturing process of the display panel, components such as a printed circuit board or an IC are usually bonded to the panel, and when the bonding accuracy is insufficient, gold fingers of the printed circuit board may be misaligned, so that the printed circuit board covers the signal line area. At this time, when the display panel generates static electricity, the grounding circuit on the printed circuit board is used as a static electricity discharge circuit, and the grounding gold finger is easy to break through to the signal line area of the display panel, so that abnormal display of the display panel is caused.
Disclosure of Invention
The invention provides a display panel, a preparation method thereof and a display device, which are used for solving the problem that static electricity is released to a signal line area of the display panel through a grounding golden finger on a printed circuit board to cause abnormal display of the display panel.
In a first aspect, an embodiment of the present invention provides a display panel, including a display area and a binding area located on one side of the display area;
the display panel also comprises a substrate base plate, a grounding signal binding terminal, a plurality of other signal binding terminals and a plurality of signal wires, wherein the grounding signal binding terminal, the plurality of other signal binding terminals and the plurality of signal wires are arranged on one side of the substrate base plate and are arranged in the binding area;
the display panel further comprises a flexible circuit board, and the flexible circuit board comprises a grounding binding gold finger;
the grounding binding golden finger is connected with the grounding signal binding terminal, and the vertical projection of the grounding binding golden finger on the plane of the substrate base plate is not overlapped with the signal line.
In a second aspect, an embodiment of the present invention further provides a method for manufacturing a display panel, which is used for manufacturing the display panel in the first aspect, where the display panel includes a display area and a binding area located on one side of the display area; the preparation method comprises the following steps:
providing a substrate base plate;
preparing a grounding signal binding terminal, a plurality of other signal binding terminals and a plurality of signal wires on one side of the substrate base plate and in the binding region, wherein the signal wires are in one-to-one correspondence with and electrically connected with the other signal binding terminals;
providing a flexible circuit board, wherein the flexible circuit board comprises a grounding binding gold finger;
and binding the grounding binding golden finger with the grounding signal binding terminal, wherein the vertical projection of the grounding binding golden finger on the plane of the substrate base plate is not overlapped with the signal line.
In a third aspect, an embodiment of the present invention further provides a display device, including the display panel described in the first aspect.
According to the technical scheme provided by the embodiment of the invention, the grounding signal binding terminal on the display panel is connected with the grounding binding golden finger on the flexible circuit board, so that static electricity on the display panel can be released through the flexible circuit board, and the influence of the static electricity on the normal display of the display panel is avoided; the vertical projection of the grounding binding golden finger on the plane of the substrate base plate is further arranged to be not overlapped with other signal lines in the display panel, the phenomenon that the signal lines are damaged by static electricity due to the fact that the grounding binding golden finger crosses the signal lines is avoided, and normal display of the display panel is guaranteed.
Drawings
FIG. 1 is a diagram illustrating a binding structure of a conventional display panel;
FIG. 2 is a schematic cross-sectional view taken along A-A of FIG. 1;
fig. 3 is a schematic structural diagram of a display panel according to an embodiment of the present invention;
FIG. 4 is an enlarged schematic view of FIG. 3 at B;
FIG. 5 is a schematic cross-sectional view taken along the direction C-C of FIG. 4;
fig. 6 is a schematic structural diagram of another display panel according to an embodiment of the present invention;
FIG. 7 is a schematic cross-sectional view taken along D-D of FIG. 6;
fig. 8 is a schematic structural diagram of another display panel according to an embodiment of the present invention;
FIG. 9 is a schematic cross-sectional view taken along direction E-E of FIG. 8;
fig. 10 is a schematic structural diagram of another display panel according to an embodiment of the present invention;
fig. 11 is a schematic structural diagram of another display panel according to an embodiment of the present invention;
fig. 12 is a schematic structural diagram of another display panel according to an embodiment of the disclosure;
fig. 13 is a schematic flowchart of a method for manufacturing a display panel according to an embodiment of the invention;
fig. 14 is a schematic structural diagram of a display panel according to an embodiment of the present invention;
fig. 15 is a schematic structural diagram of a flexible circuit board before cutting according to an embodiment of the present invention;
fig. 16 is a schematic structural diagram of a flexible circuit board after cutting according to an embodiment of the present invention;
fig. 17 is a schematic structural diagram of a display device according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention. It should be further noted that, for the convenience of description, only some structures related to the present invention are shown in the drawings, not all of them.
Fig. 1 is a schematic diagram of a binding structure of a conventional display panel, and fig. 2 is a schematic diagram of a cross section of fig. 1 along a direction a-a. Referring to fig. 1 and 2, the display panel includes a substrate S1, a ground signal binding terminal S2 and a plurality of signal lines S3 disposed on the substrate S1, and a flexible circuit board S4, where the flexible circuit board S4 includes a ground binding gold finger S5, the ground binding gold finger S5 is bound with the ground signal binding terminal S2 by a binding paste S6, and the binding paste S6 contains conductive particles S7 therein. As shown in fig. 1, when the binding accuracy is insufficient, the ground binding gold finger S5 may be displaced upward, so that the ground binding gold finger S5 covers the area of the signal line S3, and referring to fig. 2, at this time, the static electricity conducted on the ground signal binding terminal S2 is easily broken down to the area of the signal line S3 of the display panel through the ground binding gold finger S5, which causes abnormal display of the display panel.
Based on the above technical problem, embodiments of the present invention provide a display panel, a display device, and a manufacturing method of the display panel, wherein the display panel includes a display area and a bonding area located at one side of the display area, the display panel further includes a substrate base plate, and a ground signal bonding terminal, a plurality of other signal bonding terminals, and a plurality of signal lines that are disposed at one side of the substrate base plate and are disposed in the bonding area, and the signal lines are in one-to-one correspondence with and electrically connected to the other signal bonding terminals. The display panel further comprises a flexible circuit board, the flexible circuit board comprises a grounding binding golden finger, the grounding binding golden finger is connected with the grounding signal binding terminal, and the vertical projection of the grounding binding golden finger on the plane of the substrate base plate is not overlapped with the signal line. By adopting the technical scheme, the vertical projection of the grounding binding golden finger on the plane of the substrate base plate is not overlapped with the signal line, so that static electricity cannot be punctured to the signal line area of the display panel through the grounding binding golden finger, and normal display of the display panel is ensured.
The above is the core idea of the present invention, and the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without any creative work belong to the protection scope of the present invention.
Fig. 3 is a schematic structural diagram of a display panel according to an embodiment of the present invention, fig. 4 is an enlarged schematic structural diagram of fig. 3 at B, fig. 5 is a schematic cross-sectional diagram of fig. 4 along a direction C-C, as shown in fig. 3, fig. 4 and fig. 5, the display panel according to the embodiment of the present invention includes a display area 11 and a bonding area 12 located at one side of the display area 11, the display panel further includes a substrate 21, and a ground signal bonding terminal 31, a plurality of other signal bonding terminals 32 and a plurality of signal lines 33 that are located at one side of the substrate 21 and located at the bonding area 12, and the signal lines 33 are in one-to-one correspondence with and electrically connected to the other signal bonding terminals 32. The display panel further comprises a flexible circuit board 41, the flexible circuit board 41 comprises a grounding binding gold finger 51, the grounding binding gold finger 51 is connected with the grounding signal binding terminal 31, and the vertical projection of the grounding binding gold finger 51 on the plane of the substrate base plate 21 is not overlapped with the signal line 33.
The ground-binding gold finger 51 may be bound to the ground-signal binding terminal 31 through a conductive adhesive layer 81, and optionally, as shown in fig. 5, the conductive adhesive layer 81 includes a resin 811 and a plurality of conductive particles 812 distributed in the resin 811. The conductive particles 812 are insulated from each other by the resin 811, so that the ground binding gold fingers 51 and the ground signal binding terminals 31 bound to each other have good electrical connection therebetween, and the insulation between the adjacent ground binding gold fingers 51 and between the adjacent ground signal binding terminals 31 is improved, which contributes to the binding connection at a small pitch. Illustratively, the conductive adhesive layer 81 is an anisotropic conductive film, which is a polymer film having three functions of conductivity, insulation, and adhesion, and has conductivity in the film thickness direction and insulation in the film surface direction, and can simultaneously realize permanent adhesion between the ground binding gold finger 51 and the ground signal binding terminal 31 and insulation between the adjacent ground binding gold finger 51 and the adjacent ground signal binding terminal 31.
According to the technical scheme provided by the embodiment of the invention, the grounding signal binding terminal 31 on the display panel is connected with the grounding binding golden finger 51 on the flexible circuit board 41, so that static electricity on the display panel can be released through the flexible circuit board 41, and the influence of the static electricity on the normal display of the display panel is avoided; further, the vertical projection of the grounding binding golden finger 51 on the plane of the substrate base plate 21 is not overlapped with other signal lines 33 in the display panel, so that the signal lines 33 are prevented from being damaged by static electricity due to the fact that the grounding binding golden finger 51 crosses the signal lines 33, and normal display of the display panel is guaranteed.
With continued reference to fig. 4, optionally, the flexible circuit board 41 further includes a plurality of other binding gold fingers 52, and the other binding gold fingers 52 are connected to the other signal binding terminals 32 in a one-to-one correspondence. The ground bonding gold finger 51 and the plurality of other bonding gold fingers 52 are arranged along a first direction X, and extend along a second direction Y, the first direction X is parallel to a boundary of the display area 11 on a side close to the bonding area 12, and the second direction Y intersects with the first direction X. The ground binding gold finger 51 includes a first end 511 near one side of the display region 11, and the other binding gold fingers 52 include a second end 521 near one side of the display region 11, and a distance D1 between the first end 511 and the display region 11 is greater than a distance D2 between the second end 521 and the display region 11 along the second direction Y.
As shown in fig. 4, by setting the distance D1 between the first end 511 of the ground-binding gold finger 51 and the display area 11 to be greater than the distance D2 between the second end 521 of the other binding gold finger 52 and the display area 11, the ground-binding gold finger 51 is prevented from crossing over the signal line 33 while ensuring the binding effect of the other binding gold finger 52 and the other signal-binding terminal 32, and thus the display panel is prevented from being abnormal due to static electricity penetrating through the ground-binding gold finger 51 to the signal line 33 area of the display panel.
Fig. 6 is a schematic structural diagram of another display panel according to an embodiment of the present invention, and fig. 7 is a schematic sectional diagram of fig. 6 along a direction D-D, as shown in fig. 6 and 7, optionally, the flexible circuit board 41 further includes a flexible substrate 53, and the ground bonding gold finger 51 and the other bonding gold fingers 52 are disposed on the flexible substrate 53. The flexible substrate 53 comprises a first flexible subsection 531 and a second flexible subsection 532, the first flexible subsection 531 and the second flexible subsection 532 are arranged along a first direction X and extend along a second direction Y, a perpendicular projection of the ground binding gold finger 51 on the flexible substrate 53 at least partially overlaps the first flexible subsection 531, a perpendicular projection of the other binding gold finger 52 on the flexible substrate 53 at least partially overlaps the second flexible subsection 532, the first flexible subsection 531 comprises a third end 5311 near one side of the display area 11, the second flexible subsection 532 comprises a fourth end 5321 near one side of the display area 11, and a distance D3 between the third end 5311 and the display area 11 is equal to a distance D4 between the fourth end 5321 and the display area 11 along the second direction Y.
Wherein, the distance D3 between the third end 5311 of the first flexible subsection 531 and the display area 11 is equal to the distance D4 between the fourth end 5321 of the second flexible subsection 532 and the display area 11, as shown in fig. 6, the first flexible subsection 531 and the second flexible subsection 532 are prepared in the same process, and the preparation process is simple; meanwhile, the boundary of the flexible circuit board 41 close to one side of the display area 11 is a complete straight line, so that the flexible circuit board 41 is resistant to pulling, and the strength of the flexible circuit board 41 is ensured. Further, after the first flexible subsection 531 and the second flexible subsection 532 are prepared, the grounding binding gold finger 51 can be directly prepared at the first flexible subsection 531 at one side of the flexible substrate 53, the other binding gold fingers 52 are prepared at the second flexible subsection 532, and the distance D1 between the first end 511 of the grounding binding gold finger 51 and the display area 11 is greater than the distance D2 between the second end 521 of the other binding gold finger 52 and the display area 11, so that the signal line 33 is prevented from being damaged by electrostatic shock due to the fact that the grounding binding gold finger 51 crosses the signal line 33, and normal display of the display panel is ensured.
Fig. 8 is a schematic structural diagram of another display panel according to an embodiment of the present invention, and fig. 9 is a schematic sectional diagram of fig. 8 along the direction E-E, as shown in fig. 8 and fig. 9, optionally, the flexible circuit board 41 further includes a flexible substrate 53, and the ground bonding gold finger 51 and the other bonding gold fingers 52 are disposed on the flexible substrate 53. The flexible substrate 53 comprises a first flexible subsection 531 and a second flexible subsection 532, the first flexible subsection 531 and the second flexible subsection 532 being arranged along a first direction X and extending along a second direction Y, a perpendicular projection of the ground bonding gold finger 51 onto the flexible substrate 53 at least partially overlapping the first flexible subsection 531, and a perpendicular projection of the other bonding gold finger 52 onto the flexible substrate 53 at least partially overlapping the second flexible subsection 532. The first flexible subsection 531 comprises a third end 5311 adjacent to one side of the display area 11 and the second flexible subsection 532 comprises a fourth end 5321 adjacent to one side of the display area 11, wherein the distance D3 between the third end 5311 and the display area 11 is greater than the distance D4 between the fourth end 5321 and the display area 11 along the second direction Y.
In the manufacturing of the flexible circuit board 41, the flexible substrate 53 may be prepared, the flexible substrate 53 includes a first flexible subsection 531 and a second flexible subsection 532, a grounded bonding finger 51 is prepared at the first flexible subsection 531, other bonding fingers 52 are prepared at the second flexible subsection 532, since the distance D3 between the third end 5311 of the first flexible subsection 531 and the display area 11 is larger than the distance D4 between the fourth end 5321 of the second flexible subsection 532 and the display area 11, the distance D1 between the first end 511 of the grounding binding gold finger 51 prepared in the first flexible subsection 531 and the display area 11 is larger than the distance D2 between the second ends 521 of the other binding gold fingers 52 prepared in the second flexible subsection 532 and the display area 11, so that the electrostatic damage of the signal line 33 caused by the grounding binding gold finger 51 crossing the signal line 33 can be avoided, and the normal display of the display panel can be ensured; and simultaneously, the process for forming the grounding binding gold finger 51 and the other binding gold fingers 52 is simpler.
With continued reference to fig. 8, optionally, the distance D1 between the first end 511 and the display area 11 is equal to the distance D3 between the third end 5311 and the display area 11, and the distance D2 between the second end 521 and the display area 11 is equal to the distance D4 between the fourth end 5321 and the display area 11.
The distance D1 between the first end 511 and the display area 11 is equal to the distance D3 between the third end 5311 and the display area 11, the distance D2 between the second end 521 and the display area 11 is equal to the distance D4 between the fourth end 5321 and the display area 11, it is ensured that the distance between the grounded binding golden finger 51 and the side close to the display area 11 is flush with the side close to the display area 11 of the first flexible subsection 531, and the distances between the other binding golden fingers 52 and the side close to the display area 11 are flush with the side close to the display area 11 of the second flexible subsection 532, it is ensured that the signal line 33 is prevented from being damaged by static electricity due to the fact that the grounded binding golden finger 51 crosses the signal line 33, meanwhile, the flexible circuit board 41 is simple in manufacturing process, and neat and attractive in appearance.
Fig. 10 is a schematic structural diagram of another display panel according to an embodiment of the present invention, as shown in fig. 10, optionally, the ground signal bonding terminal 31 and the plurality of other signal bonding terminals 31 are arranged along a first direction X and extend along a second direction Y, the first direction X is parallel to a boundary of the display area 11 on a side close to the bonding area 12, and the second direction Y intersects with the first direction X. The ground signal binding terminal 31 includes a fifth end 311 near one side of the display region 11, and the other signal binding terminals 32 include a sixth end 321 near one side of the display region 11, and a distance D5 between the fifth end 311 and the display region 11 is greater than a distance D6 between the sixth end 321 and the display region 11 along the second direction Y.
By setting the distance D5 between the fifth end 311 and the display area 11 to be greater than the distance D6 between the sixth end 321 and the display area 11, while the vertical projection of the ground bonding golden finger 51 on the plane of the substrate base plate 21 is ensured not to overlap with the signal line 33, more wiring space is left for the signal line 33, which is beneficial to reducing the size of the display panel.
With continued reference to fig. 10, optionally, the ground binding gold finger 51 includes a first end 511 close to one side of the display region 11, the ground signal binding terminal 31 includes a fifth end 311 close to one side of the display region 11, a distance D1 between the first end 511 and the display region 11 is smaller than a distance D5 between the fifth end 311 and the display region 11 along the second direction Y, and a distance D7 between the first end 511 and the fifth end 311 is equal to a maximum binding allowance error when the ground binding gold finger 51 is bound to the ground signal binding terminal 31, and the second direction Y is perpendicular to a boundary of one side of the display region 11 close to the binding region 12.
By setting the distance D1 between the first end 511 and the display area 11 to be smaller than the distance D5 between the fifth end 311 and the display area 11, and setting the distance D7 between the first end 511 and the fifth end 311 to be equal to the maximum binding allowable error when the ground binding gold finger 51 is bound with the ground signal binding terminal 31, a certain error space is left for the binding between the ground binding gold finger 51 and the ground signal binding terminal 31, so as to ensure the binding effect between the ground binding gold finger 51 and the ground signal binding terminal 31.
Fig. 11 is a schematic structural diagram of another display panel according to an embodiment of the present invention, as shown in fig. 11, optionally, the display panel further includes an integrated driving circuit 61, and the integrated driving circuit 61 is disposed on the substrate base 21.
The integrated drive circuit 61 is used for driving the display panel to emit light and display, and the integrated drive circuit 61 is disposed on the substrate base plate 21, so that the number of binding process steps is small, and the cost of the display panel is reduced.
Fig. 12 is a schematic structural diagram of another display panel according to an embodiment of the present invention, and as shown in fig. 12, optionally, an integrated driving circuit 61 is disposed on the flexible circuit board 41.
The integrated driving circuit 61 is disposed on the flexible circuit board 41, and the integrated driving circuit 61 can be bent to the back of the display panel along with the flexible circuit board 41, so as to reduce the size of the bonding region 12 along the second direction Y, which is beneficial to realizing a display panel with a narrower frame.
Optionally, the Display panel provided in the embodiment of the present invention includes a Liquid Crystal Display (LCD) panel or an organic light-Emitting Diode (OLED) Display panel.
The liquid crystal display panel comprises a backlight layer and a liquid crystal layer, the liquid crystal layer is arranged on a light-emitting surface of the backlight layer, the light and shade of pixel points are controlled through deflection of liquid crystal in the liquid crystal layer, and then the liquid crystal display panel is controlled to display patterns. The organic light emitting diode display panel comprises the organic light emitting layer, the organic light emitting layer can emit light of three primary colors of red, green and blue, and each pixel point can project light of three primary colors of red, green and blue, so that the display effect of the organic light emitting diode display panel is brighter and fuller.
Based on the same inventive concept, an embodiment of the present invention further provides a method for manufacturing a display panel, where the display panel includes a display area and a binding area located on one side of the display area, the method is used to manufacture any one of the display panels provided in the above embodiments, and explanations of structures and terms that are the same as or corresponding to those in the above embodiments are not repeated here, fig. 13 is a schematic flow diagram of the method for manufacturing a display panel provided in the embodiment of the present invention, and as shown in fig. 13, the method includes the following steps:
And 120, preparing a grounding signal binding terminal, a plurality of other signal binding terminals and a plurality of signal wires on one side of the substrate base plate in the binding region, wherein the signal wires are in one-to-one correspondence with and electrically connected with the other signal binding terminals.
And 140, binding the grounding binding golden finger with the grounding signal binding terminal, wherein the vertical projection of the grounding binding golden finger on the plane of the substrate base plate is not overlapped with the signal line.
According to the preparation method of the display panel, the grounding signal binding terminal on the display panel is connected with the grounding binding golden finger on the flexible circuit board, so that static electricity on the display panel can be released through the flexible circuit board, and the influence of the static electricity on normal display of the display panel is avoided; the vertical projection of the grounding binding golden finger on the plane of the substrate base plate is further arranged not to be overlapped with other signal lines in the display panel, the signal lines are prevented from being damaged by static electricity due to the fact that the grounding binding golden finger crosses the signal lines, and normal display of the display panel is guaranteed.
Optionally, providing a flexible circuit board, where the flexible circuit board includes a grounding binding gold finger, includes:
providing a flexible substrate, wherein the flexible substrate comprises a first boundary, and the first boundary is parallel to the boundary of one side, close to the binding area, of the display area in the binding process.
Preparing a grounding binding gold finger and other binding gold fingers on one side of the flexible substrate, wherein the grounding binding gold finger and the other binding gold fingers are arranged along a first direction and extend along a second direction; the first direction is parallel to an extending direction of the first boundary, and the second direction intersects the first direction; the ground binding gold finger comprises a first end near the first boundary, and the other binding gold fingers comprise a second end near the first boundary; the distance between the first end and the first boundary is greater than the distance between the second end and the first boundary along the second direction.
Fig. 14 is a schematic structural diagram of a display panel according to an embodiment of the present invention, and as shown in fig. 14, the flexible substrate 53 includes a first boundary 54, and in the bonding process, the first boundary 54 is parallel to a boundary of the display area 11 on a side close to the bonding area 12. Preparing a grounding binding gold finger 51 and other binding gold fingers 52 on one side of the flexible substrate 53, wherein the grounding binding gold finger 51 and a plurality of other binding gold fingers 52 are arranged along a first direction X and extend along a second direction Y, the first direction X is parallel to the extending direction of the first boundary 54, the second direction Y intersects with the first direction, the grounding binding gold finger 51 comprises a first end 511 close to the first boundary 54, the other binding gold fingers 52 comprise a second end 521 close to the first boundary 54, and the distance between the first end 511 and the first boundary 54 is larger than the distance between the second end 521 and the first boundary 54 along the second direction Y. By setting the distance between the first end 511 of the grounding binding golden finger 51 and the display area 11 to be greater than the distance between the second end 521 of the other binding golden finger 52 and the display area 11, the effect of binding the other binding golden finger 52 and the other signal binding terminal 32 is ensured, meanwhile, the grounding binding golden finger 51 is prevented from crossing other signal lines in the display panel, and further, the abnormal condition of the display panel caused by the static electricity penetrating through the signal line area of the display panel through the grounding binding golden finger 51 is avoided.
Optionally, the flexible substrate comprises a first flexible subsection and a second flexible subsection, the first flexible subsection and the second flexible subsection being aligned along a first direction and extending along a second direction;
preparing a grounding binding gold finger and other binding gold fingers on one side of the flexible substrate, and the method comprises the following steps:
and evaporating a first conductive metal layer on one side of the first flexible branch part to form a grounding binding golden finger.
And evaporating a second conductive metal layer on one side of the second flexible branch part to form other binding gold fingers.
With reference to fig. 6, when the flexible circuit board 41 is manufactured, the grounding binding gold finger 51 is directly manufactured at the first flexible branch 531 on one side of the flexible substrate 53, the other binding gold fingers 52 are manufactured at the second flexible branch 532, and the distance D1 between the first end 511 of the grounding binding gold finger 51 and the display area 11 is greater than the distance D2 between the second end 521 of the other binding gold finger 52 and the display area 11, so that the manufacturing process is simple, and the distance D3 between the third end 5311 of the first flexible branch 531 and the display area 11 is equal to the distance D4 between the fourth end 5321 of the second flexible branch 532 and the display area 11, as shown in fig. 6, the boundary of the flexible circuit board 41 close to the display area 11 side is a complete straight line, so that the flexible circuit board 41 is resistant to pulling, and the strength of the flexible circuit board 41 is ensured.
Optionally, the flexible substrate comprises a first flexible subsection and a second flexible subsection, the first flexible subsection and the second flexible subsection being aligned along a first direction and extending along a second direction; the first flexible subsection includes a portion of the first boundary and a second boundary, the first boundary and the second boundary intersecting.
And evaporating a first conductive metal layer on one side of the first flexible subsection.
Evaporating a second conductive metal layer on one side of the second flexible subsection to form other binding gold fingers; the other bonding gold finger comprises a second end close to the first boundary, and the first conductive metal layer comprises a seventh end close to the first boundary; a distance between the second end and the first boundary is equal to a distance between the seventh end and the first boundary along the second direction.
And cutting the first flexible subsection and the first conductive metal layer along the first direction at the preset position of the second boundary to obtain the grounding binding golden finger.
Specifically, fig. 15 is a schematic structural diagram of the flexible circuit board before cutting provided by the embodiment of the present invention, fig. 16 is a schematic structural diagram of the flexible circuit board after cutting provided by the embodiment of the present invention, as shown in fig. 15 and 16, the flexible substrate 53 includes a first flexible branch 531 and a second flexible branch 532, the first flexible branch 531 and the second flexible branch 532 are arranged along the first direction X and extend along the second direction Y, the first flexible branch 531 includes a part of the first boundary 54 and the second boundary 55, and the first boundary 54 and the second boundary 55 intersect. Evaporating a first conductive metal layer 42 on the side of the first flexible subsection 531 and a second conductive metal layer on the side of the second flexible subsection 532 to form the other bonding fingers 52, wherein the other bonding fingers 52 include a second end 521 close to the first border 54, the first conductive metal layer 42 includes a seventh end 56 close to the first border 54, and the distance between the second end 521 and the first border 54 is equal to the distance between the seventh end 56 and the first border 54 along the second direction Y. The first flexible subsection 531 and the first conductive metal layer 42 are cut along the first direction X at the predetermined position 57 of the second boundary 55 resulting in the ground bonding gold finger 51. When the flexible circuit board 41 is manufactured, the first conductive metal layer and the second conductive metal layer may be set to have the same shape, and the first conductive metal layer and the second conductive metal layer may be simultaneously prepared by evaporation, thereby simplifying the manufacturing process.
Based on the same inventive concept, an embodiment of the present invention further provides a display device, fig. 17 is a schematic structural diagram of the display device provided in the embodiment of the present invention, and as shown in fig. 17, the display device 70 includes a display panel 71 according to any embodiment of the present invention, so that the display device 70 provided in the embodiment of the present invention has the technical effects of the technical solutions in any embodiment described above, and the explanation of the same or corresponding structures and terms as those in the embodiment described above is not repeated herein. The display device 70 provided in the embodiment of the present invention may be a mobile phone shown in fig. 17, and may also be any electronic product with a display function, including but not limited to the following categories: the touch screen display system comprises a television, a notebook computer, a desktop display, a tablet computer, a digital camera, an intelligent bracelet, intelligent glasses, a vehicle-mounted display, medical equipment, industrial control equipment, a touch interaction terminal and the like, and the embodiment of the invention is not particularly limited in this respect.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (12)
1. A display panel is characterized by comprising a display area and a binding area positioned on one side of the display area;
the display panel also comprises a substrate base plate, a grounding signal binding terminal, a plurality of other signal binding terminals and a plurality of signal wires, wherein the grounding signal binding terminal, the plurality of other signal binding terminals and the plurality of signal wires are arranged on one side of the substrate base plate and are arranged in the binding area;
the display panel further comprises a flexible circuit board, and the flexible circuit board comprises a grounding binding gold finger;
the grounding binding golden finger is connected with the grounding signal binding terminal, and the vertical projection of the grounding binding golden finger on the plane of the substrate base plate is not overlapped with the signal line;
the flexible circuit board further comprises a plurality of other binding golden fingers, and the other binding golden fingers are connected with the other signal binding terminals in a one-to-one correspondence manner;
the grounding binding golden finger and the other binding golden fingers are arranged along a first direction and extend along a second direction; the first direction is parallel to the boundary of one side, close to the binding region, of the display region, and the second direction is intersected with the first direction;
the grounding binding golden finger comprises a first end close to one side of the display area, and the other binding golden fingers comprise second ends close to one side of the display area;
along the second direction, the distance between the first end and the display area is larger than the distance between the second end and the display area.
2. The display panel according to claim 1, wherein the flexible circuit board further comprises a flexible substrate, and the ground bonding gold finger and the other bonding gold fingers are disposed on the flexible substrate;
the flexible substrate includes a first flexible subsection and a second flexible subsection aligned along a first direction and extending along a second direction; the perpendicular projection of the ground binding golden finger on the flexible substrate is at least partially overlapped with the first flexible subsection, and the perpendicular projection of the other binding golden finger on the flexible substrate is at least partially overlapped with the second flexible subsection;
the first flexible subsection including a third end proximate one side of the display area and the second flexible subsection including a fourth end proximate one side of the display area;
along the second direction, the distance between the third end and the display area is equal to the distance between the fourth end and the display area.
3. The display panel according to claim 1, wherein the flexible circuit board further comprises a flexible substrate, and the ground bonding gold finger and the other bonding gold fingers are disposed on the flexible substrate;
the flexible substrate includes a first flexible subsection and a second flexible subsection aligned along a first direction and extending along a second direction; the perpendicular projection of the ground binding golden finger on the flexible substrate is at least partially overlapped with the first flexible subsection, and the perpendicular projection of the other binding golden finger on the flexible substrate is at least partially overlapped with the second flexible subsection;
the first flexible subsection including a third end proximate one side of the display area and the second flexible subsection including a fourth end proximate one side of the display area;
along the second direction, the distance between the third end and the display area is larger than the distance between the fourth end and the display area.
4. The display panel according to claim 3, wherein a distance between the first end and the display region is equal to a distance between the third end and the display region, and a distance between the second end and the display region is equal to a distance between the fourth end and the display region.
5. The display panel according to claim 1, wherein the ground signal binding terminal and the plurality of other signal binding terminals are arranged in a first direction and extend in a second direction; the first direction is parallel to the boundary of one side, close to the binding region, of the display region, and the second direction is intersected with the first direction;
the ground signal binding terminal comprises a fifth end close to one side of the display area, and the other signal binding terminals comprise sixth ends close to one side of the display area;
along the second direction, the distance between the fifth end and the display area is greater than the distance between the sixth end and the display area.
6. The display panel according to claim 1, wherein the ground binding gold finger includes a first end near one side of the display area, and the ground signal binding terminal includes a fifth end near one side of the display area;
in a second direction, the distance between the first end and the display area is smaller than the distance between the fifth end and the display area, and the distance between the first end and the fifth end is equal to the maximum binding allowance error when the ground binding gold finger is bound with the ground signal binding terminal; the second direction is perpendicular to the boundary of one side of the display area, which is close to the binding area.
7. The display panel of claim 1, wherein the display panel further comprises an integrated drive circuit;
the integrated drive circuit is arranged on the substrate base plate; or, the integrated driving circuit is arranged on the flexible circuit board.
8. The display panel according to claim 1, wherein the display panel comprises a liquid crystal display panel or an organic light emitting diode display panel.
9. A manufacturing method of a display panel for manufacturing the display panel according to any one of claims 1 to 8, the display panel including a display area and a bonding area on one side of the display area; the preparation method is characterized by comprising the following steps:
providing a substrate base plate;
preparing a grounding signal binding terminal, a plurality of other signal binding terminals and a plurality of signal wires on one side of the substrate base plate and in the binding region, wherein the signal wires are in one-to-one correspondence with and electrically connected with the other signal binding terminals;
providing a flexible circuit board, wherein the flexible circuit board comprises a grounding binding gold finger;
binding the grounding binding golden finger with the grounding signal binding terminal, wherein the vertical projection of the grounding binding golden finger on the plane of the substrate base plate is not overlapped with the signal line;
the providing a flexible circuit board, the flexible circuit board includes a grounding binding gold finger, including:
providing a flexible substrate comprising a first boundary; in the binding process, the first boundary is parallel to the boundary of one side, close to the binding region, of the display region;
preparing a grounding binding gold finger and other binding gold fingers on one side of the flexible substrate, wherein the grounding binding gold finger and the other binding gold fingers are arranged along a first direction and extend along a second direction; the first direction is parallel to an extending direction of the first boundary, and the second direction intersects the first direction; the ground bound fingers include first ends proximate the first boundary, and the other bound fingers include second ends proximate the first boundary; the distance between the first end and the first boundary is greater than the distance between the second end and the first boundary along the second direction.
10. A method of manufacturing as claimed in claim 9 wherein the flexible substrate comprises first and second flexible sections aligned along a first direction and extending along a second direction;
preparing a grounding binding gold finger and other binding gold fingers on one side of the flexible substrate, and the method comprises the following steps:
evaporating a first conductive metal layer on one side of the first flexible subsection to form a grounding binding golden finger;
and evaporating a second conductive metal layer on one side of the second flexible branch part to form other binding gold fingers.
11. A method of manufacturing as claimed in claim 9 wherein the flexible substrate comprises first and second flexible sections aligned along a first direction and extending along a second direction; the first flexible subsection including portions of the first and second boundaries, the first and second boundaries intersecting;
evaporating a first conductive metal layer on one side of the first flexible subsection;
evaporating a second conductive metal layer on one side of the second flexible subsection to form other binding gold fingers; the other bonding gold finger comprises a second end close to the first boundary, and the first conductive metal layer comprises a seventh end close to the first boundary; a distance between the second end and the first boundary is equal to a distance between the seventh end and the first boundary along the second direction;
and cutting the first flexible subsection and the first conductive metal layer along the first direction at the preset position of the second boundary to obtain the grounding binding golden finger.
12. A display device characterized by comprising the display panel according to any one of claims 1 to 8.
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| CN112230795B (en) * | 2020-10-13 | 2024-04-16 | 京东方科技集团股份有限公司 | Touch module and display device |
| CN112419903B (en) * | 2020-11-30 | 2022-05-10 | 厦门天马微电子有限公司 | Display panel and display device |
| CN113593758B (en) * | 2021-07-30 | 2022-09-27 | 惠科股份有限公司 | Flexible flat cable and display device |
| CN114743472B (en) * | 2022-04-28 | 2023-11-14 | 厦门天马微电子有限公司 | Display module and display device |
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