CN114973984B - Display screen and spliced display device - Google Patents
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- CN114973984B CN114973984B CN202210613267.2A CN202210613267A CN114973984B CN 114973984 B CN114973984 B CN 114973984B CN 202210613267 A CN202210613267 A CN 202210613267A CN 114973984 B CN114973984 B CN 114973984B
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- 239000000758 substrate Substances 0.000 claims abstract description 75
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 45
- 239000010410 layer Substances 0.000 claims description 44
- 239000012788 optical film Substances 0.000 claims description 29
- 230000000903 blocking effect Effects 0.000 claims description 26
- 239000010408 film Substances 0.000 claims description 17
- 238000005538 encapsulation Methods 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 239000011159 matrix material Substances 0.000 claims description 7
- 239000003292 glue Substances 0.000 claims description 5
- 238000009792 diffusion process Methods 0.000 claims description 4
- 230000002708 enhancing effect Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 description 15
- 239000012790 adhesive layer Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000011521 glass Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000004642 Polyimide Substances 0.000 description 3
- 229920001721 polyimide Polymers 0.000 description 3
- 230000005684 electric field Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 239000002096 quantum dot Substances 0.000 description 2
- 239000000565 sealant Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/302—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements characterised by the form or geometrical disposition of the individual elements
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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
- G02F1/13336—Combining plural substrates to produce large-area displays, e.g. tiled displays
-
- 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
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
-
- 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
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133603—Direct backlight with LEDs
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The embodiment of the application discloses a display screen and a spliced display device, wherein the display screen comprises an LED substrate and a liquid crystal panel, the LED substrate comprises a substrate, a first LED device group and a second LED device group, the substrate comprises a backlight area and a display area, and the display area is positioned on at least one side of the backlight area; the first LED device group is arranged in the backlight area on the substrate; the second LED device group is arranged in the display area on the substrate and is used for displaying pictures; the liquid crystal panel is arranged on the LED substrate and is positioned in the backlight area. The application aims to solve the problems that the existing liquid crystal spliced screen is troublesome to splice and the display quality at the spliced position is poor.
Description
Technical Field
The application relates to the technical field of display, in particular to a display screen and a spliced display device.
Background
The liquid crystal spliced screen can be used as a display independently and can be spliced into an oversized screen for use. According to different use requirements, the variable screen function of changing the size into the small size is realized. The image frames can be optionally supplemented or covered for arbitrary combined display, so that the setting and running of cross-screen display, picture-in-picture, 3D playing and various display plans are supported, but the display effect and the watching experience are greatly reduced due to the existence of the splicing seams in the actual display.
In the research and practice process of the prior art, the inventor of the application finds that the scheme of processing the splice joint of the liquid crystal spliced screen at the present stage generally adopts the mode that the MiniLED direct display lamp strip is attached to the splice joint in the splice process, but the splice efficiency of the setting mode is lower, and the problem of poor display quality of the splice joint is easily caused by the protrusion of the lamp strip after installation.
Disclosure of Invention
The embodiment of the application provides a display screen and a spliced display device, which are used for solving the problems that the conventional liquid crystal spliced screen is troublesome to splice and the display quality at the spliced position is poor.
An embodiment of the present application provides a display screen, including:
the LED substrate comprises a base, a first LED device group and a second LED device group, wherein the base comprises a backlight area and a display area, and the display area is positioned on at least one side of the backlight area; the first LED device group is arranged in the backlight area on the substrate; the second LED device group is arranged in the display area on the substrate and is used for displaying pictures; and
the liquid crystal panel is arranged on the LED substrate and is positioned in the backlight area.
Optionally, in some embodiments of the present application, the display screen further includes a light blocking wall, where the light blocking wall is disposed on the substrate and located between the backlight area and the display area.
Optionally, in some embodiments of the present application, the display screen further includes a reflective layer, where the reflective layer is disposed on a surface of the light blocking wall facing the backlight area.
Optionally, in some embodiments of the present application, the display screen further includes an optical film layer, where the optical film layer is disposed between the LED substrate and the liquid crystal panel, and the optical film layer is located on the light blocking wall, and projects from the liquid crystal panel toward the LED substrate, and a projection area of the optical film layer coincides with a projection area of the backlight area.
Optionally, in some embodiments of the present application, the display screen further includes an encapsulation glue layer, where the encapsulation glue layer encapsulates the second LED device group, and a surface of the liquid crystal panel away from the optical film layer is flush with a surface of the encapsulation glue layer away from the second LED device group.
Optionally, in some embodiments of the present application, the first LED device group includes a plurality of blue light emitting LED devices disposed at intervals, and the optical film layer includes a light conversion film;
and the projection areas of the plurality of blue light emitting LED devices are positioned in the projection area of the light conversion film.
Optionally, in some embodiments of the application, the optical film layer further includes a diffusion film and a brightness enhancing film disposed in a stack.
Optionally, in some embodiments of the present application, the liquid crystal panel includes a display area and a non-display area surrounding the display area, where the non-display area is provided with a black matrix, and the black matrix is disposed corresponding to the light blocking wall.
Optionally, in some embodiments of the present application, the first LED device group includes a plurality of first LED devices, the second LED device group includes a plurality of second LED devices, a distance between two adjacent first LED devices is S1, and a distance between two adjacent second LED devices is S2, S1 > S2.
Correspondingly, the embodiment of the application also provides a spliced display device which comprises at least more than two display screens, wherein the LED substrate of one display screen is spliced with the LED substrate of the other display screen.
The display screen provided by the embodiment of the application comprises an LED substrate and a liquid crystal panel, wherein the LED substrate comprises a substrate, a first LED device group and a second LED device group. The substrate includes a backlight region and a display region, the display region being located on at least one side of the backlight region. The first LED device group is arranged in a backlight area on the substrate. The second LED device group is arranged in a display area on the substrate and used for displaying pictures. The liquid crystal panel is arranged on the LED substrate and is positioned in the backlight area. The backlight area of the substrate, the first LED device group and the liquid crystal panel form a liquid crystal backlight display area, the display area of the substrate and the second LED device group form an LED direct display area, and then the display screen can realize LED direct display and liquid crystal display simultaneously through one-step molding.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a display screen according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of an LED substrate of a display screen according to an embodiment of the present application;
FIG. 3 is a schematic structural diagram of a display screen according to another embodiment of the present application;
fig. 4 is a schematic structural diagram of a tiled display device according to an embodiment of the present application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to fall within the scope of the application. Furthermore, it should be understood that the detailed description is presented herein for purposes of illustration and description only, and is not intended to limit the application. In the present application, unless otherwise indicated, terms of orientation such as "upper" and "lower" are used to generally refer to the upper and lower positions of the device in actual use or operation, and specifically the orientation of the drawing figures; while "inner" and "outer" are for the outline of the device.
The embodiment of the application provides a display screen and a spliced display device thereof. The following will describe in detail. The following description of the embodiments is not intended to limit the preferred embodiments.
Referring to fig. 1, a display screen 100 provided by an embodiment of the present application includes an LED substrate 10 and a liquid crystal panel 20, where the LED substrate 10 includes a base 11, a first LED device group 12 and a second LED device group 13. The substrate 11 includes a backlight region 111 and a display region 112, the display region 112 being located on at least one side of the backlight region 111. The first LED device group 12 is disposed on the backlight area 111 on the substrate 11. The second LED device group 13 is disposed in the display area 112 on the substrate 11 for displaying a picture. The liquid crystal panel 20 is disposed on the LED substrate 10 and located in the backlight area 111.
The backlight area 111 of the substrate 11, the first LED device and the liquid crystal panel 20 form a liquid crystal backlight display area, and the display area 112 of the substrate 11 and the second LED device group 13 form an LED direct display area, so that the display screen 100 can realize LED direct display and liquid crystal display simultaneously through one-step forming, and in the subsequent splicing process, the LED direct display area can display at the splice joint, thereby avoiding the process of independently and additionally arranging an LED direct display light bar at the splice joint, effectively improving the splicing efficiency, reducing the cost, effectively reducing the display problem caused by the protrusion of the spliced LED direct display light bar, effectively improving the appearance and the brightness difference, and further improving the display effect.
It is understood that the substrate 11 may be one of a printed circuit board, a glass LED substrate, or a polyimide substrate. When the substrate 11 is a printed circuit board, the printed circuit board is a lamp driving integrated printed circuit board, and the structure thereof is simpler. When the glass LED substrate is adopted as the base 11, the glass substrate has higher flatness, so that an active driving scheme can be realized when the driving circuit is manufactured on the glass substrate, thereby reducing the whole volume of the driving circuit and better reducing the power consumption of the driving circuit. Meanwhile, the glass substrate can enable the display screen 100 to have better water resistance and oxidation resistance, so that the service life and reliability of the display screen 100 are improved. When the base 11 is a polyimide substrate, since polyimide is a flexible material, it is possible to provide flexibility for large-size tiled display, and further improve the display effect. The area of the backlight area 111 is larger than that of the display area 112, so as to reduce the setting of the direct display area in the display screen 100, thereby effectively reducing the overall cost of the display screen 100.
In addition, the present application is not limited to the type of the liquid crystal panel 20, and may be a vertical electric field type liquid crystal display panel, such as a Twisted Nematic (TN) type liquid crystal display panel, a Multi-domain vertical alignment (MVA) type liquid crystal display panel, or a horizontal electric field type liquid crystal display panel, such as a fringe field Switching (Fringe Field Switching, FFS) type liquid crystal display panel or an In-Plane Switching (IPS) type liquid crystal display panel. The liquid crystal panel 20 includes an array substrate and a counter substrate disposed opposite to each other, and a liquid crystal layer disposed between the array substrate and the counter substrate. In this embodiment, the array substrate is an array substrate, and the opposite substrate is a color film substrate. The present application is not limited to the types of the array substrate and the opposite substrate. In other embodiments of the present application, the array substrate and the counter substrate may be COA (color filter on array) type array substrate and counter substrate.
In some embodiments, referring to fig. 1 and 2, the first LED device group 12 includes a plurality of first LED devices 121, the second LED device group 13 includes a plurality of second LED devices 131, the spacing between two adjacent first LED devices 121 is S1, and the spacing between two adjacent second LED devices 131 in the second LED device group 13 is S2, S1 > S2. Wherein the first LED device group 12 functions as a backlight and the second LED device group 13 functions as a display. Through S1 > S2, the spacing between two adjacent first LED devices 121 in the first LED device group 12 may be set wider for reducing the number of first LED devices 121, so as to reduce the cost of the display screen 100, and the spacing between two adjacent second LED devices 131 in the second LED device group 13 may be set narrower for S2, so as to improve the display definition of the second LED device group 13. The second LED device group 13 includes a red LED device, a blue LED device, and a green LED device.
Referring to fig. 3, in another embodiment, the display 100 further includes a light blocking wall 30, where the light blocking wall 30 is disposed on the substrate 11 and located between the backlight area 111 and the display area 112. By arranging the light blocking wall 30 to block light between the backlight area 111 and the display area 112, the probability of light leakage or color mixing between the backlight area 111 and the display area 112 can be effectively reduced, and the display effect of the backlight area 111 and the display area 112 of the display screen 100 is ensured. It will be appreciated that the light blocking wall 30 is composed of a non-transparent material. And the light blocking wall 30 is disposed towards the two side walls of the backlight area 111 and the display area 112, so as to effectively reduce the diffuse reflection effect of the light rays of the first LED device group and the second LED device group while blocking light.
Further, the display 100 further includes a reflective layer 40, where the reflective layer 40 is disposed on a surface of the light blocking wall 30 facing the backlight area 111. It will be appreciated that the first LED device group mainly functions as a backlight light source, so that in order to further reduce the influence of the light of the first LED device group 12 in the backlight area 111 on the display area 112, the reflection layer 40 is disposed on the light blocking wall 30 facing the backlight area 111 to reflect the light of the first LED device group 12, so that not only the light intensity of the backlight area 111 can be increased, but also the probability that the light of the first LED device group 12 affects the display area 112 can be reduced. The material of the reflective layer 40 includes a metal material, such as aluminum, silver, and the like, because the 0 reflection effect of the metal material is better.
Optionally, the display screen 100 further includes an optical film layer 50, where the optical film layer 50 is disposed between the LED substrate 10 and the liquid crystal panel 20, and the optical film layer 50 is located on the light blocking wall 30, and projects from the liquid crystal panel 20 toward the LED substrate 10, and a projection area of the optical film layer 50 coincides with a projection area of the backlight area 111. In order to further improve the display effect of the backlight area 111 of the display screen 100, a light film layer capable of enhancing the display effect is disposed between the LED substrate 10 and the liquid crystal panel 20. Meanwhile, the optical film layer 50 is located on the light blocking wall 30, so that the light blocking wall 30 can support the optical film layer 50, and further, the stability of the optical film layer 50 after being disposed is further ensured. It should be noted that, the optical film layer 50 may directly abut against the upper surface of the light blocking wall 30 to support, so that the light blocking wall 30 may ensure that the gap between the optical film layer 50 and the LED substrate 10 is completely blocked, so as to improve the light blocking effect of the light blocking wall 30. Or the optical film layer 50 may be fixed by a sealant, and then the sealant is abutted by the light blocking wall 30 to indirectly support the optical film layer 50, which may be specifically set by a person skilled in the art according to specific situations.
Further, the display screen 100 further includes an encapsulation adhesive layer 60, the encapsulation adhesive layer 60 encapsulates the second LED device group 13, and a surface of the liquid crystal panel 20 away from the optical film layer 50 is flush with a surface of the encapsulation adhesive layer 60 away from the second LED device group 13. The second LED device group 13 is encapsulated and protected by the encapsulation adhesive layer 60, and the side wall surface of the encapsulation adhesive layer 60 is also attached to the side wall surface of the liquid crystal panel 20 and the side wall surface of the optical film layer 50, so as to also achieve the encapsulation effect on the side surface of the backlight area 111 of the LED substrate 10. The surface of the liquid crystal panel 20 far from the optical film layer 50 is flush with the surface of the encapsulation adhesive layer 60 far from the second LED device group 13, so as to ensure the high consistency of the backlight area 111 and the display area 112, thereby improving the optical consistency, further improving the overall appearance of the display screen 100 and improving the brightness difference between the display area 112 and the backlight area 111.
Alternatively, the first LED device group 12 includes a plurality of blue light emitting LED devices arranged at intervals, and the optical film layer 50 includes a light conversion film. The LED substrate 10 projects in the direction of the liquid crystal panel 20, and the projection area of the plurality of blue light emitting LED devices is located within the projection area of the light conversion film. The light conversion film is a quantum dot color conversion layer, so that the original surface light emission is changed into quantum dot light emission, and the viewing angle of the backlight area 111 of the display screen 100 is further improved, so that the viewing angle of the backlight area 111 is consistent with that of the display area 112, and the display effect is further improved.
Alternatively, the liquid crystal panel 20 includes a display area 112 and a non-display area 22 surrounding the display area 112, the non-display area 22 is provided with a black matrix 221, and the black matrix 221 is disposed corresponding to the light blocking wall 30. The black matrix 221 thus has the effect of reducing light leakage or color mixing of display light in the backlight area 111 onto the display area 112, thereby ensuring the display effect of the display screen 100.
In some embodiments, the optical film layer 50 further includes a diffusion film and a brightness enhancing film in a stacked arrangement. It can be appreciated that the display viewing angle of the backlight area 111 of the display screen 100 is further increased by providing the diffusion film, and the effect of directionally improving the brightness of the viewing angle and improving the uniformity of the brightness of the viewing angle can be achieved by providing the brightness enhancement film, thereby improving the overall display effect of the display screen 100.
Referring to fig. 4, a tiled display device 1000 according to an embodiment of the present application includes at least two display screens 100, where the display screens 100 are disposed in a tiled manner, and an LED substrate 10 of one display screen 100 is tiled with an LED substrate 10 of another display screen 100. After the display areas 112 of each display screen 100 are spliced, the display areas can be displayed at the joint of the two display screens 100, so that the process of independently and additionally arranging the LED direct display light bars at the joint is avoided, the splicing efficiency can be effectively improved, the cost is reduced, the display problem caused by the follow-up projection of the spliced LED direct display light bars can be effectively reduced, the appearance can be effectively improved, the brightness difference can be improved, and the display effect can be further improved.
The display screen and the spliced display device provided by the embodiment of the application are described in detail, and specific examples are applied to the description of the principle and the implementation mode of the application, and the description of the above embodiments is only used for helping to understand the method and the core idea of the application; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in light of the ideas of the present application, the present description should not be construed as limiting the present application.
Claims (10)
1. A display screen, comprising:
the LED substrate comprises a base, a first LED device group and a second LED device group, wherein the base comprises a backlight area and a display area, and the display area is positioned on at least one side of the backlight area; the first LED device group is arranged in the backlight area on the substrate; the second LED device group is arranged in the display area on the substrate and used for displaying pictures, and the display area and the second LED device group form an LED direct display area; and
the liquid crystal panel is arranged on the LED substrate and is positioned in the backlight area, and the backlight area, the first LED device group and the liquid crystal panel form a liquid crystal backlight display area.
2. The display screen of claim 1, further comprising a light blocking wall disposed on the substrate and between the backlight and the display area.
3. The display screen of claim 2, further comprising a reflective layer disposed on a side of the light blocking wall facing the backlight.
4. The display screen of claim 2, further comprising an optical film layer disposed between the LED substrate and the liquid crystal panel, the optical film layer being positioned on the light blocking wall and projecting from the liquid crystal panel toward the LED substrate, a projection area of the optical film layer coinciding with a projection area of the backlight area.
5. The display screen of claim 4, further comprising a layer of encapsulation glue encapsulating the second set of LED devices, a face of the liquid crystal panel remote from the optical film layer being flush with a face of the layer of encapsulation glue remote from the second set of LED devices.
6. The display screen of claim 4, wherein the first set of LED devices comprises a plurality of blue light emitting LED devices disposed in a spaced apart relationship, and wherein the optical film layer comprises a light conversion film;
and the projection areas of the plurality of blue light emitting LED devices are positioned in the projection area of the light conversion film.
7. A display screen as recited in any one of claims 2 to 6, wherein the optical film layer further comprises a diffusion film and a brightness enhancing film disposed in a stack.
8. A display screen according to any one of claims 2 to 6, wherein the liquid crystal panel comprises a display region and a non-display region surrounding the display region, the non-display region is provided with a black matrix, and the black matrix is arranged corresponding to the light blocking wall.
9. The display screen of any one of claims 1 to 6, wherein the first LED device group includes a plurality of first LED devices, the second LED device group includes a plurality of second LED devices, a spacing between two adjacent first LED devices is S1, and a spacing between two adjacent second LED devices is S2, S1 > S2.
10. A tiled display device comprising at least two display screens according to any one of claims 1 to 9, wherein the LED substrate of one display screen is tiled with the LED substrate of the other display screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210613267.2A CN114973984B (en) | 2022-05-31 | 2022-05-31 | Display screen and spliced display device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210613267.2A CN114973984B (en) | 2022-05-31 | 2022-05-31 | Display screen and spliced display device |
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| Publication Number | Publication Date |
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| CN114973984A CN114973984A (en) | 2022-08-30 |
| CN114973984B true CN114973984B (en) | 2023-10-31 |
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| CN202210613267.2A Active CN114973984B (en) | 2022-05-31 | 2022-05-31 | Display screen and spliced display device |
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| CN115933234B (en) * | 2022-11-08 | 2024-04-19 | Tcl华星光电技术有限公司 | Spliced display screen |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102236213A (en) * | 2010-04-23 | 2011-11-09 | 北京京东方光电科技有限公司 | Liquid crystal panel, manufacturing method thereof and liquid crystal display |
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| CN208188529U (en) * | 2018-04-26 | 2018-12-04 | 佛山市国星光电股份有限公司 | A kind of back light unit, backlight module and its display device |
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| CN114171508A (en) * | 2021-12-09 | 2022-03-11 | Tcl华星光电技术有限公司 | Splicing screen, preparation method and display device thereof |
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| KR100662788B1 (en) * | 2004-09-22 | 2007-01-02 | 엘지.필립스 엘시디 주식회사 | High Brightness Liquid Crystal Display |
| CN210244017U (en) * | 2019-07-26 | 2020-04-03 | 深圳市瑞丰光电子股份有限公司 | Backlight module and display screen |
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