CN216287370U - Backlight module for preventing edge bright edge of narrow-frame display film material and display device - Google Patents
Backlight module for preventing edge bright edge of narrow-frame display film material and display device Download PDFInfo
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- CN216287370U CN216287370U CN202122985448.1U CN202122985448U CN216287370U CN 216287370 U CN216287370 U CN 216287370U CN 202122985448 U CN202122985448 U CN 202122985448U CN 216287370 U CN216287370 U CN 216287370U
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- backlight module
- guide plate
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- 239000000463 material Substances 0.000 title abstract description 19
- 239000010408 film Substances 0.000 claims abstract description 41
- 239000012788 optical film Substances 0.000 claims abstract description 34
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 22
- 230000000903 blocking effect Effects 0.000 claims abstract description 22
- 229910052742 iron Inorganic materials 0.000 claims abstract description 11
- 230000003287 optical effect Effects 0.000 claims description 9
- 239000000853 adhesive Substances 0.000 claims description 8
- 230000001070 adhesive effect Effects 0.000 claims description 8
- 239000006260 foam Substances 0.000 claims description 7
- 230000003139 buffering effect Effects 0.000 claims description 3
- 239000002390 adhesive tape Substances 0.000 description 8
- 239000012528 membrane Substances 0.000 description 5
- 239000011324 bead Substances 0.000 description 4
- 238000009792 diffusion process Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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Abstract
The utility model provides a backlight module for preventing bright edges at the edge of a narrow-frame display film material, which comprises an iron frame, a reflecting film, a light guide plate, an optical film, a light bar and a light blocking strip, wherein the reflecting film, the light guide plate, the optical film, the light bar and the light blocking strip are arranged in the iron frame, the light guide plate is arranged on the reflecting film, the optical film is arranged on the light guide plate, the light bar is arranged corresponding to the light incident side of the light guide plate, the side edge of the light guide plate close to the light incident side is fixedly connected with a convex edge, the light blocking strip is connected to the convex edge, the light blocking strip is positioned between the optical film and the convex edge, the light blocking strip comprises a first surface used for absorbing light rays and a second surface used for reflecting the light rays, the first surface is arranged corresponding to the side edge of the optical film, and the second surface is connected to the convex edge. The backlight module can prevent the edge of the film material from having bright edges, improve the quality level of products and improve the use experience of customers. The utility model also relates to a display device.
Description
Technical Field
The utility model relates to the technical field of display screens, in particular to a backlight module for preventing bright edges at the edge of a narrow-frame display film material and a display device.
Background
The application fields of modern social display screens are more and more, no matter in many fields such as mobile phones, flat panels, notebooks, automobiles, high-speed rails, airplanes and aerospace, the display screens are widely applied to display screen products, backlight is one of the main components of the display screens, when the display screens are purchased, besides consideration on performance, appearance, basic configuration and price, consumers have higher requirements on the image quality of display pictures from the application to the beauty of the display screens, and meanwhile, the consumers want the display screens to have larger screen ratio in a limited space. Under the condition that the appearance of the display screen is unchanged, the screen is required to be maximized, and the frame of the backlight module needs to be narrower to meet the requirements of consumers. Under the backlight unit frame narrows the condition, the inside visible membrane material edge bright border phenomenon of display area is exposed to traditional backlight unit package mode, directly influences display screen picture display effect, if the display screen bright border is unusual or the inside membrane material of backlight arouses that the screen display is unusual, directly influences consumer's experience, reduces consumer's purchase desire.
SUMMERY OF THE UTILITY MODEL
In view of this, the backlight module of the utility model can prevent the edge of the film material from appearing bright edges, improve the quality level of the product, and improve the use experience of customers.
The utility model provides a prevent backlight unit of narrow frame display membrane material edge bright border, including chase and the reflectance coating of setting in the chase, the light guide plate, the optics diaphragm, lamp strip and light blocking strip, the light guide plate is established on the reflectance coating, the optics diaphragm is established on the light guide plate, the lamp strip corresponds the setting with the income light side of light guide plate, the light guide plate is close to the side fixedly connected with bead of income light side, light blocking strip connects in the bead, and light blocking strip is located between optics diaphragm and the bead, light blocking strip is including the first surface that is used for absorbed light and the second surface of reflection light, the first surface corresponds the setting with the side of optics diaphragm, the second surface connection is in the bead.
In the utility model, the light blocking strip comprises a black double-sided adhesive tape and a white double-sided adhesive tape which are mutually attached, the first surface is positioned on the surface of the black double-sided adhesive tape, and the second surface is positioned on the surface of the white double-sided adhesive tape.
In the utility model, one side of the optical diaphragm, which is close to the light bar, is provided with an avoiding groove, and the convex edge is arranged in the avoiding groove.
In the utility model, the convex edge comprises a first connecting section and a second connecting section, a first limit groove is formed between the first connecting section and the second connecting section, the optical diaphragm is provided with a first limit part which is arranged corresponding to the first limit groove, and the first limit part is arranged in the first limit groove.
In the utility model, the light guide plate comprises a first side edge, a second side edge, a third side edge and a fourth side edge, wherein the first side edge and the second side edge are arranged oppositely, the third side edge and the fourth side edge are arranged oppositely, the first side edge and the second side edge are vertically connected to the third side edge and the fourth side edge, the first side edge is arranged close to the light bar, the convex edge is fixedly connected to the first side edge, one ends of the third side edge and the fourth side edge, which are close to the light bar, are respectively provided with a second limiting part, the second limiting part is arranged on one side of the light guide plate, which is close to the optical diaphragm, the optical diaphragm is provided with a second limiting groove corresponding to the second limiting part, and the second limiting part is arranged in the second limiting groove.
In the utility model, the third side edge and the fourth side edge are respectively provided with a third limiting part at one end close to the light bar, the third limiting part is arranged at one side of the light guide plate close to the bottom plate of the iron frame, the bottom plate is provided with a third limiting groove corresponding to the third limiting part, and the third limiting part is arranged in the third limiting groove.
In the utility model, the convex edge comprises a first side face arranged opposite to the lamp strip and a second side face arranged opposite to the optical film, the first side face and the second side face are arranged oppositely, and the distance between the first side face and the second side face is 0.8-1.0 mm.
In the utility model, the backlight module for preventing the narrow frame from displaying the bright edge at the edge of the film material further comprises a middle frame, the middle frame is provided with a mounting groove, the iron frame is provided with a mounting block, and the mounting block is mounted in the mounting groove and fixedly connected with the middle frame and the iron frame.
In the utility model, the backlight module for preventing the edge bright edge of the narrow-frame display film material further comprises foam adhesive, the foam adhesive is fixedly connected to the middle frame, and the foam adhesive is used for buffering and fixing the display screen.
The utility model also relates to a display device which comprises the backlight module for preventing the edge bright edge of the narrow-frame display film material.
The backlight module for preventing the bright edge at the edge of the narrow-frame display film material is provided with the convex edge on the light guide plate, and the light-blocking strip is additionally arranged between the convex edge and the optical film.
Drawings
Fig. 1 is a schematic view of a split structure of the backlight module for preventing bright edges at the edge of the narrow-frame display film according to the present invention.
Fig. 2 is a schematic cross-sectional view of a backlight module for preventing a bright edge at an edge of a narrow-frame display film according to the present invention.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In order to facilitate understanding of those skilled in the art, the present application provides a specific implementation process of the technical solution provided by the present application through the following embodiments.
Fig. 1 is a schematic view of a split structure of a backlight module for preventing a bright edge at an edge of a narrow-frame display film according to the present invention, fig. 2 is a schematic view of a cross-sectional structure of a backlight module for preventing a bright edge at an edge of a narrow-frame display film according to the present invention, as shown in fig. 1 and fig. 2, the backlight module for preventing a bright edge at an edge of a narrow-frame display film comprises an iron frame 11, and a reflective film 12, a light guide plate 13, an optical film 14, a light bar 15, and a light blocking strip 16, which are disposed in the iron frame 11, the light guide plate 13 is disposed on the reflective film 12, the optical film 14 is disposed on the light guide plate 13, the light bar 15 is disposed corresponding to a light incident side of the light guide plate 13, a rib 131 is fixedly connected to a side of the light guide plate 13 near the light incident side, the light blocking strip 16 is connected to the rib 131, the light blocking strip 16 is disposed between the optical film 14 and the rib 131, the light blocking strip 16 comprises a first surface 161 for absorbing light rays and a second surface 162 for reflecting light rays, the first surface 161 is disposed corresponding to the side of the optical film 14, and the second surface 162 is connected to the rib 131. In this embodiment, the light bar 15 is fixedly connected to the inner wall of the bezel 11 by a double-sided thermal tape (not shown).
The backlight module for preventing the bright edge at the edge of the narrow-frame display film material is characterized in that the convex rib 131 is arranged on the light guide plate 13, the light-blocking strip 16 is additionally arranged between the convex rib 131 and the optical film 14, and the light-blocking strip 16 comprises the first surface 161 capable of absorbing light and the second surface 162 capable of reflecting light, so that the first surface 161 can absorb the light at the edge of the optical film 14, and the second surface 162 can reflect the light irradiated to the convex rib 131 by the light bar 15 for reuse, thereby improving the quality level of the backlight module and reducing the risk of customers.
Further, the light blocking strip 16 includes a black double-sided tape (not shown) and a white double-sided tape (not shown) attached to each other, the first surface 161 is located on a surface of the black double-sided tape, and the second surface 162 is located on a surface of the white double-sided tape. In this embodiment, the black double-sided tape and the white double-sided tape may be formed by pasting; or the black double-sided adhesive and the white double-sided adhesive are in an integrated structure.
In another preferred embodiment, the first surface 161 of the light blocking strip 16 is made of a material that can absorb light, and the second surface 162 of the light blocking strip 16 is made of a material that can reflect light, but not limited thereto.
Further, an avoiding groove 101 is formed in one side of the optical film 14 close to the light bar 15, and the protruding rib 131 is arranged in the avoiding groove 101. In this embodiment, the protruding ribs 131 and the light guide plate 13 are integrated, so that the avoiding grooves 101 formed on the optical film 14 can make the optical film 14 more matched when being attached to the light guide plate 13, thereby preventing the optical film 14 from being wrinkled, and affecting the quality of the backlight module.
Further, the rib 131 includes a first connection segment 1311 and a second connection segment 1312, a first limit groove 102 is formed between the first connection segment 1311 and the second connection segment 1312, the optical film 14 is provided with a first limit portion 14a corresponding to the first limit groove 102, and the first limit portion 14a is installed in the first limit groove 102. In the present embodiment, the first connecting section 1311 and the second connecting section 1312 are disposed at an interval along the long axis direction, and when the optical film 14 is mounted on the light guide plate 13, the first position-limiting portion 14a is used for positioning and limiting the optical film 14, so that the mounting between the optical film 14 and the light guide plate 13 is more suitable.
Further, the light guide plate 13 includes a first side 132, a second side 133, a third side 134 and a fourth side 135, the first side 132 is disposed opposite to the second side 133, the third side 134 is disposed opposite to the fourth side 135, the first side 132, the second side 133 is perpendicularly connected to the third side 134, the fourth side 135, the first side 132 is disposed near the light bar 15, the protruding rib 131 is fixedly connected to the first side 132, the third side 134, one end of the fourth side 135 near the light bar 15 is respectively provided with a second limiting portion 136, the second limiting portion 136 is disposed on one side of the light guide plate 13 near the optical film 14, the optical film 14 is provided with a second limiting groove 103 corresponding to the second limiting portion 136, and the second limiting portion 136 is disposed in the second limiting groove 103. In the present embodiment, when the optical film 14 is mounted on the light guide plate 13, the second position-limiting portion 136 is used for positioning and limiting the optical film 14, so that the mounting between the optical film 14 and the light guide plate 13 is more suitable.
Furthermore, a third limiting portion 137 is respectively disposed at one end of the third side 134 and the fourth side 135 close to the light bar 15, the third limiting portion 137 is disposed at one side of the light guide plate 13 close to the bottom plate of the bezel 11, the bottom plate (not shown) is disposed with a third limiting groove 104 corresponding to the third limiting portion 137, and the third limiting portion 137 is disposed in the third limiting groove 104. In this embodiment, the light guide plate 13 is mounted on the bottom plate, the reflective film 12 is located between the bottom plate and the light guide plate 13, and the third limiting portion 137 is used for positioning and limiting between the light guide plate 13 and the bottom plate, so as to avoid the light guide plate 13 from loosening or abnormal noise.
Furthermore, rib 131 includes a first side 131a directly opposite to light bar 15 and a second side 131b directly opposite to optical film 14, where first side 131a and second side 131b are opposite to each other, and a distance between first side 131a and second side 131b is 0.8mm to 1.0 mm. In the present embodiment, the distance between the first side 131a and the second side 131b is, for example, 0.8mm, 0.9mm, or 1.0mm, but not limited thereto.
Further, prevent that narrow frame from showing the backlight unit of membrane material edge bright border still includes center 17, and center 17 is equipped with mounting groove 105, and chase 11 is equipped with installation piece 111, and installation piece 111 installs fixed connection center 17 and chase 11 in mounting groove 105. In this embodiment, the distance between the protruding rib 131 and the middle frame 17 is at least 0.1mm, so as to prevent the middle frame 17 from crushing the optical film 14 and prevent the optical film 14 from wrinkling.
Further, the optical film 14 includes a diffusion film 141, a lower brightness enhancement film 142, an upper brightness enhancement film 143, and a brightness enhancement film 144, the diffusion film 141 is fixed on the light guide plate 13 by a double-sided adhesive tape, the lower brightness enhancement film 142 is fixed on the diffusion film 141 by a double-sided adhesive tape, the upper brightness enhancement film 143 is fixed on the lower brightness enhancement film 142 by a double-sided adhesive tape, and the brightness enhancement film 144 is fixed on the upper brightness enhancement film 143 by a double-sided adhesive tape.
Further, prevent that narrow frame from showing the backlight unit of membrane material edge bright edge still includes bubble celloidin 18, bubble celloidin 18 fixed connection is on center 17, and bubble celloidin 18 is used for buffering fixed display screen. In the present embodiment, the foam 18 is distributed in a shape of a "square" but not limited thereto.
The utility model also relates to a display device which comprises the backlight module for preventing the edge bright edge of the narrow-frame display film material. In the present embodiment, the display device is, for example, a central control display screen of an automobile, a tablet computer, a notebook computer, or a desktop display screen, but not limited thereto.
The present invention is not limited to the specific details of the above-described embodiments, and various simple modifications may be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention. The various features described in the foregoing detailed description may be combined in any suitable manner without departing from the scope of the utility model. The utility model is not described in detail in order to avoid unnecessary repetition.
Claims (10)
1. The backlight module is characterized by comprising an iron frame (11), a reflecting film (12), a light guide plate (13), an optical diaphragm (14), a light bar (15) and a light blocking strip (16) which are arranged in the iron frame (11), wherein the light guide plate (13) is arranged on the reflecting film (12), the optical diaphragm (14) is arranged on the light guide plate (13), the light bar (15) is correspondingly arranged with the light incident side of the light guide plate (13), the side edge of the light guide plate (13) close to the light incident side is fixedly connected with a convex rib (131), the light blocking strip (16) is connected with the convex rib (131), the light blocking strip (16) is positioned between the optical diaphragm (14) and the convex rib (131), and the light blocking strip (16) comprises a first surface (161) for absorbing light rays and a second surface (162) for reflecting light rays, the first surface (161) is disposed corresponding to a side of the optical film (14), and the second surface (162) is connected to the rib (131).
2. The backlight module of claim 1, wherein the light blocking strip (16) comprises a black double-sided tape and a white double-sided tape attached to each other, the first surface (161) is disposed on a surface of the black double-sided tape, and the second surface (162) is disposed on a surface of the white double-sided tape.
3. The backlight module of claim 2, wherein an avoiding groove (101) is formed on a side of the optical film (14) close to the light bar (15), and the protruding rib (131) is disposed in the avoiding groove (101).
4. The backlight module of claim 3, wherein the rib (131) comprises a first connecting section (1311) and a second connecting section (1312), a first limiting groove (102) is formed between the first connecting section (1311) and the second connecting section (1312), the optical film (14) is provided with a first limiting portion (14a) corresponding to the first limiting groove (102), and the first limiting portion (14a) is installed in the first limiting groove (102).
5. The backlight module of claim 4, wherein the light guide plate (13) comprises a first side (132), a second side (133), a third side (134), and a fourth side (135), the first side (132) and the second side (133) are disposed opposite to each other, the third side (134) and the fourth side (135) are disposed opposite to each other, the first side (132) and the second side (133) are perpendicularly connected to the third side (134) and the fourth side (135), the first side (132) is disposed near the light bar (15), the protruding ribs (131) are fixedly connected to the first side (132), and second limiting portions (136) are respectively disposed at ends of the third side (134) and the fourth side (135) near the light bar (15), the second limiting portion (136) is arranged on one side, close to the optical diaphragm (14), of the light guide plate (13), the optical diaphragm (14) is provided with a second limiting groove (103) corresponding to the second limiting portion (136), and the second limiting portion (136) is installed in the second limiting groove (103).
6. The backlight module of claim 5, wherein a third position-limiting portion (137) is disposed at one end of each of the third side edge (134) and the fourth side edge (135) close to the light bar (15), the third position-limiting portion (137) is disposed at one side of the light guide plate (13) close to the bottom plate of the bezel (11), the bottom plate is provided with a third position-limiting groove (104) corresponding to the third position-limiting portion (137), and the third position-limiting portion (137) is mounted in the third position-limiting groove (104).
7. The backlight module for preventing edge bright edges of narrow-bezel display films as claimed in claim 1, wherein said rib (131) comprises a first side (131a) opposite to said light bar (15) and a second side (131b) opposite to said optical film (14), said first side (131a) and said second side (131b) are opposite to each other, and the distance between said first side (131a) and said second side (131b) is 0.8 mm-1.0 mm.
8. The backlight module for preventing the edge of the narrow-frame display film from being bright as claimed in claim 1, wherein the backlight module for preventing the edge of the narrow-frame display film from being bright further comprises a middle frame (17), the middle frame (17) is provided with a mounting groove (105), the iron frame (11) is provided with a mounting block (111), and the mounting block (111) is mounted in the mounting groove (105) to fixedly connect the middle frame (17) and the iron frame (11).
9. The backlight module for preventing the edge of the narrow-frame display film from being bright according to claim 8, wherein the backlight module for preventing the edge of the narrow-frame display film from being bright further comprises foam adhesive (18), the foam adhesive (18) is fixedly connected to the middle frame (17), and the foam adhesive (18) is used for buffering and fixing the display screen.
10. A display device, comprising the backlight module according to any one of claims 1 to 9 for preventing the edge of the narrow-bezel display film from being bright.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122985448.1U CN216287370U (en) | 2021-11-29 | 2021-11-29 | Backlight module for preventing edge bright edge of narrow-frame display film material and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122985448.1U CN216287370U (en) | 2021-11-29 | 2021-11-29 | Backlight module for preventing edge bright edge of narrow-frame display film material and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216287370U true CN216287370U (en) | 2022-04-12 |
Family
ID=81041760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122985448.1U Active CN216287370U (en) | 2021-11-29 | 2021-11-29 | Backlight module for preventing edge bright edge of narrow-frame display film material and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216287370U (en) |
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2021
- 2021-11-29 CN CN202122985448.1U patent/CN216287370U/en active Active
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Address after: 518000 floor 1, 2-4, and floor 1-3, No. 222-2, Buxin Road, Xinlan community, Guanlan street, Longhua District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Handamei Electronics Co.,Ltd. Country or region after: China Address before: 518000 floor 1, 2-4, and floor 1-3, No. 222-2, Buxin Road, Xinlan community, Guanlan street, Longhua District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN HADBEST ELECTRONICS CO.,LTD. Country or region before: China |