CN219872026U - Backlight module with light leakage prevention structure - Google Patents
Backlight module with light leakage prevention structure Download PDFInfo
- Publication number
- CN219872026U CN219872026U CN202320328221.6U CN202320328221U CN219872026U CN 219872026 U CN219872026 U CN 219872026U CN 202320328221 U CN202320328221 U CN 202320328221U CN 219872026 U CN219872026 U CN 219872026U
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- light
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- wall
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- 230000002265 prevention Effects 0.000 title claims abstract description 6
- 238000009792 diffusion process Methods 0.000 claims abstract description 20
- 239000002390 adhesive tape Substances 0.000 claims abstract description 10
- 238000007789 sealing Methods 0.000 claims description 8
- 239000003292 glue Substances 0.000 abstract description 10
- 230000000149 penetrating effect Effects 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000012800 visualization Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 2
- VQLYBLABXAHUDN-UHFFFAOYSA-N bis(4-fluorophenyl)-methyl-(1,2,4-triazol-1-ylmethyl)silane;methyl n-(1h-benzimidazol-2-yl)carbamate Chemical compound C1=CC=C2NC(NC(=O)OC)=NC2=C1.C=1C=C(F)C=CC=1[Si](C=1C=CC(F)=CC=1)(C)CN1C=NC=N1 VQLYBLABXAHUDN-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012788 optical film Substances 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Planar Illumination Modules (AREA)
Abstract
The utility model discloses a backlight module with a light leakage prevention structure, which relates to the technical field of backlight modules and aims at the problems that in the prior art, a reflecting layer has light transmission, the display brightness of the whole backlight module is reduced and the risk of light leakage exists at the same time. According to the utility model, the LED lamp emits light, the light is focused by the light-gathering plate, the glue frame is filled with the light, the light irradiates upwards under the cooperation of the reflecting sheet, and the light irradiates on the black-and-white sheet for visualization after passing through the light-guiding plate, the diffusion sheet and the light-increasing sheet, and the light-shielding adhesive tapes are arranged between the black-and-white sheet, the light-increasing sheet, the diffusion sheet, the light-guiding plate, the glue frame and the reflecting sheet, so that the light can be prevented from penetrating out through gaps among the glue frame and the reflecting sheet, and the occurrence of light leakage is reduced.
Description
Technical Field
The present disclosure relates to backlight modules, and particularly to a backlight module with a light leakage preventing structure.
Background
The backlight module is one of the key components of the liquid crystal display panel. In the middle-small size backlight, the design scheme that LEDs are arranged on the same side of a light guide body and used as a light source is adopted. The LED is used as a point light source, and light rays of the LED are converted into a surface light source after being reflected and refracted for many times by the light guide plate and the optical film, namely the backlight with a visible area is formed.
The problems of the prior art are:
because the reflectivity of the material on the side surface is not high enough, the reflecting layer has the light transmission condition, the reflecting material can transmit light to generate light loss, the display brightness of the whole display can be reduced, and the light leakage risk exists.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides the backlight module with the light leakage prevention structure, overcomes the defects of the prior art, and effectively solves the problems that the reflecting layer in the prior art has light transmission, the display brightness of the whole display is reduced and the light leakage risk exists.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the utility model provides a backlight unit with leak protection light structure, includes the underframe, the top of underframe bonds there is sealed frame, and the top in the underframe is provided with black and white piece, black and white piece's below is provided with the piece that adds lustre to, and adds lustre to the below of piece and be provided with the diffusion piece, the below of diffusion piece is provided with the light guide plate, and the below of light guide plate is provided with gluey frame, the below of gluing the frame is provided with the reflector plate.
The LED lamp emits light, the light is filled in the rubber frame after being focused by the condensing plate, the light irradiates upwards under the cooperation of the reflecting sheet, and the light irradiates on the black-and-white sheet for displaying after passing through the light guide plate, the diffusion sheet and the light enhancement sheet, and the shading adhesive tape is arranged between the black-and-white sheet, the light enhancement sheet, the diffusion sheet, the light guide plate, the rubber frame and the reflecting sheet, so that the light can be prevented from penetrating out through gaps among the two sheets, and the light leakage condition is reduced.
Preferably, the specification of the inner walls around the sealing frame is smaller than that of the inner walls around the bottom frame.
And sealing the top of the bottom frame by a sealing frame.
Preferably, the black-and-white sheet, the light enhancement sheet, the diffusion sheet, the light guide plate, the adhesive frame and the reflection sheet are all provided with shading adhesive tapes.
And filling and plugging gaps among the black-and-white sheet, the light enhancement sheet, the diffusion sheet, the light guide plate, the rubber frame and the reflecting sheet by using the shading adhesive tape.
Preferably, the lamp group module is all installed to the both ends inner wall of gluing the frame, and the lamp group module includes circuit board, spotlight board and LED lamp.
The light source is provided by a light bank module.
Preferably, the light condensing plate is of an arc-shaped structure, the back of the light condensing plate is fixedly connected with the outer wall of one side of the circuit board, and through holes distributed at equal distances are formed in the outer wall of one side of the light condensing plate.
The arc-shaped condensing plate enhances the light of the LED lamp and improves the brightness of the light.
Preferably, the outer wall of one side of the circuit board is electrically mounted with one end of the LED lamps distributed at equal distance, and the LED lamps are located in the condensing plate.
The arc-shaped condensing plate enhances the light of the LED lamp and improves the brightness of the light.
The beneficial effects of the utility model are as follows:
the LED lamp emits light, the light is filled in the rubber frame after being focused by the condensing plate, the light irradiates upwards under the cooperation of the reflecting sheet, and the light irradiates on the black-and-white sheet for displaying after passing through the light guide plate, the diffusion sheet and the light enhancement sheet, and the shading adhesive tape is arranged between the black-and-white sheet, the light enhancement sheet, the diffusion sheet, the light guide plate, the rubber frame and the reflecting sheet, so that the light can be prevented from penetrating out through gaps among the two sheets, and the light leakage condition is reduced.
Drawings
Fig. 1 is a schematic diagram illustrating the overall structure separation of a backlight module with a light leakage preventing structure according to the present utility model;
fig. 2 is a schematic diagram of the overall structure of a backlight module with a light leakage preventing structure according to the present utility model;
fig. 3 is a schematic diagram of a frame structure of a backlight module with a light leakage preventing structure according to the present utility model.
In the figure: 1. a bottom frame; 2. a sealing frame; 3. black and white flakes; 4. a light enhancement sheet; 5. a diffusion sheet; 6. a light guide plate; 7. a rubber frame; 8. a reflection sheet; 9. shading adhesive tape; 10. a lamp group module; 11. a circuit board; 12. a condensing plate; 13. an LED lamp.
Detailed Description
The following description of the embodiments of the present utility model 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 utility model, but not all embodiments.
Examples:
referring to fig. 1-3, a backlight module with a light leakage prevention structure comprises a bottom frame 1, wherein a sealing frame 2 is adhered to the top of the bottom frame 1, the specification of the inner wall around the sealing frame 2 is smaller than that of the inner wall around the bottom frame 1, the top of the bottom frame 1 is covered by the sealing frame 2, a black and white sheet 3 is arranged at the top in the bottom frame 1, a light enhancement sheet 4 is arranged below the black and white sheet 3, a diffusion sheet 5 is arranged below the light enhancement sheet 4, a light guide plate 6 is arranged below the diffusion sheet 5, a glue frame 7 is arranged below the light guide plate 6, and a reflecting sheet 8 is arranged below the glue frame 7;
the black and white sheet 3, the diffusion sheet 5, the light guide plate 6, the glue frame 7 and the reflecting sheet 8 are provided with shading adhesive tapes 9, gaps among the black and white sheet 3, the light enhancement sheet 4, the diffusion sheet 5, the light guide plate 6, the glue frame 7 and the reflecting sheet 8 are filled and blocked by the shading adhesive tapes 9, lamp group modules 10 are arranged on inner walls of two ends of the glue frame 7, the lamp group modules 10 comprise circuit boards 11, light gathering plates 12 and LED lamps 13, and a light source is provided by the lamp group modules 10;
the light condensing plate 12 is of an arc-shaped structure, the back of the light condensing plate 12 is fixedly connected with one side outer wall of the circuit board 11, through holes distributed at equal distances are formed in one side outer wall of the light condensing plate 12, one side outer wall of the circuit board 11 is electrically mounted with one end of the LED lamp 13 distributed at equal distances, the LED lamp 13 is located in the light condensing plate 12, light rays of the LED lamp 13 are enhanced by the arc-shaped light condensing plate 12, and light brightness is improved.
Working principle:
when the LED light source is in operation, after the lamp bank module 10 is powered on, the LED light 13 emits light, after the light passes through the focusing of the light condensing plate 12, the glue frame 7 is filled with light, the light irradiates upwards under the cooperation of the reflecting sheet 8, and after passing through the light guide plate 6, the diffusion sheet 5 and the light increasing sheet 4, the light irradiates on the black and white sheet 3 to be displayed, and as the black and white sheet 3, the diffusion sheet 5, the light guide plate 6, the glue frame 7 and the reflecting sheet 8 are all provided with the shading adhesive tape 9, the light can be prevented from penetrating out through gaps among the light guide plate, and the occurrence of light leakage is reduced.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (2)
1. The utility model provides a backlight unit with leak protection light structure, includes underframe (1), its characterized in that, sealed frame (2) has been bonded at the top of underframe (1), and the top in underframe (1) is provided with black and white piece (3), the below of black and white piece (3) is provided with enhancement film (4), and the below of enhancement film (4) is provided with diffusion piece (5), the below of diffusion piece (5) is provided with light guide plate (6), and the below of light guide plate (6) is provided with gluey frame (7), the below of gluey frame (7) is provided with reflector plate (8);
the black-and-white sheet (3), the light enhancement sheet (4), the diffusion sheet (5), the light guide plate (6), the rubber frame (7) and the reflecting sheet (8) are provided with shading adhesive tapes (9) therebetween;
the inner walls of the two ends of the rubber frame (7) are provided with lamp group modules (10), and the lamp group modules (10) comprise a circuit board (11), a condensing plate (12) and LED lamps (13);
the light condensing plate (12) is of an arc-shaped structure, the back of the light condensing plate (12) is fixedly connected with the outer wall of one side of the circuit board (11), and through holes distributed at equal distances are formed in the outer wall of one side of the light condensing plate (12);
the LED lamp (13) is electrically mounted on the outer wall of one side of the circuit board (11) and one end of the LED lamps (13) distributed at equal intervals, and the LED lamps (13) are located in the condensing plate (12).
2. The backlight module with the light leakage prevention structure according to claim 1, wherein the specification of the inner wall of the periphery of the sealing frame (2) is smaller than the specification of the inner wall of the periphery of the bottom frame (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320328221.6U CN219872026U (en) | 2023-02-20 | 2023-02-20 | Backlight module with light leakage prevention structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320328221.6U CN219872026U (en) | 2023-02-20 | 2023-02-20 | Backlight module with light leakage prevention structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219872026U true CN219872026U (en) | 2023-10-20 |
Family
ID=88316207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320328221.6U Active CN219872026U (en) | 2023-02-20 | 2023-02-20 | Backlight module with light leakage prevention structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219872026U (en) |
-
2023
- 2023-02-20 CN CN202320328221.6U patent/CN219872026U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |