CN220855406U - Backlight lamp panel of liquid crystal display - Google Patents
Backlight lamp panel of liquid crystal display Download PDFInfo
- Publication number
- CN220855406U CN220855406U CN202322542676.0U CN202322542676U CN220855406U CN 220855406 U CN220855406 U CN 220855406U CN 202322542676 U CN202322542676 U CN 202322542676U CN 220855406 U CN220855406 U CN 220855406U
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- light
- rectangular
- guide plate
- sheet
- groove
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 10
- 230000005540 biological transmission Effects 0.000 claims abstract description 17
- 238000009792 diffusion process Methods 0.000 claims description 8
- 230000001681 protective effect Effects 0.000 claims description 7
- 239000003292 glue Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Planar Illumination Modules (AREA)
Abstract
The utility model discloses a backlight lamp panel of a liquid crystal display, which relates to the technical field of backlight panels, and particularly comprises a mounting frame, wherein a rectangular sheet is mounted at the middle position in the bottom of the mounting frame, and a circular groove is formed between the edge of the rectangular sheet and the edge of the mounting frame; a plurality of rectangular seats are arranged on four side edges in the rectangular groove, and the tops of the rectangular seats extend to the upper part of the rectangular sheet; a light guide plate is arranged above the rectangular sheet, light transmission grooves corresponding to the rectangular seats in position are formed in the bottoms of the edges of the light guide plate, the tops of the rectangular seats are respectively arranged in the light transmission grooves, and light sources are arranged in each reflecting groove and are opposite to the side walls of the light transmission grooves. When the light source is used, the light rays of the light sources can directly irradiate on the side wall of the light transmission groove, so that the light rays directly irradiate into the light guide plate, and when the light rays of the light sources are simultaneously irradiated on the light guide plate, the light guide plate can emit light more uniformly, so that the light rays are uniformly distributed on the light guide plate.
Description
Technical Field
The utility model relates to the technical field of backlight plates, in particular to a liquid crystal display backlight plate.
Background
The backlight panel is also called a backlight panel, and is a light source device for ensuring the back of the liquid crystal display to emit light. Since the liquid crystal itself does not have a light emitting property, a backlight module is required to provide a surface light source.
The backlight module can be divided into a side light-in type backlight mode and a direct type backlight mode, wherein the side light-in type backlight mode is provided with light sources around the light guide plate, so that the light sources irradiate from one side of the light guide plate, the light rays of the light sources are divergent, and the light rays of the light sources cannot be ensured to be completely irradiated into the light guide plate, so that the waste of part of the light rays can be caused.
Disclosure of utility model
Aiming at the defects of the prior backlight plate, the utility model provides a liquid crystal display backlight plate which has the advantages of high luminous intensity and uniform light distribution and solves the problems in the prior art.
In order to achieve the above purpose, the utility model is realized by the following technical scheme:
The backlight lamp panel of the liquid crystal display is designed to comprise a mounting frame, wherein a rectangular sheet is mounted at the middle position in the bottom of the mounting frame, and a return groove is formed between the edge of the rectangular sheet and the edge of the mounting frame;
A plurality of rectangular seats are arranged on four side edges in the rectangular groove, and the tops of the rectangular seats extend to the upper part of the rectangular sheet;
A light guide plate is arranged above the rectangular sheet, light transmission grooves corresponding to the rectangular seats in position are formed in the bottoms of the edges of the light guide plate, and the tops of the rectangular seats are respectively arranged in the light transmission grooves;
The side surfaces of the rectangular seats positioned in the light transmission grooves are respectively provided with a reflecting groove facing the center of the mounting frame, each reflecting groove is internally provided with a light source, and the light sources are opposite to the side walls of the light transmission grooves.
Preferably, at least one diffusion sheet is arranged at the top of the light guide plate, at least one brightness enhancement sheet is arranged above the diffusion sheet, and black and white glue is arranged at the top of the brightness enhancement sheet.
Preferably, the light source is an LED light source, and the inner surface of the reflection groove is provided with a reflection layer.
Preferably, the surface of the rectangular sheet is provided with a reflecting sheet, and the light guide plate is positioned above the reflecting sheet.
Preferably, a protective rubber frame is arranged at the inner side surface of the mounting frame and distributed at the outer edge of the return groove.
Compared with the prior art, when the light source is used, the light rays of the light sources can directly irradiate on the side wall of the light transmission groove, so that the light rays directly irradiate into the light guide plate, and when the light rays of the light sources simultaneously irradiate on the light guide plate, the light guide plate can emit light more uniformly, so that the light rays are uniformly distributed on the light guide plate.
Drawings
FIG. 1 is a schematic view of an explosive structure of the present utility model.
Fig. 2 is a schematic structural view of the mounting frame of the present utility model.
Fig. 3 is a top view of the mounting frame of the present utility model.
Fig. 4 is a schematic cross-sectional view of a mounting frame of the present utility model.
In the figure: 1. a mounting frame; 2. a reflection sheet; 3. rectangular pieces; 4. a light source; 5. a light enhancement sheet; 6. a diffusion sheet; 7. a light guide plate; 8. a light transmission groove; 9. a rectangular seat; 10. a return groove; 11. a protective rubber frame; 12. a reflective trough.
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. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1 to 4, the present utility model provides a technical solution: the backlight lamp panel of the liquid crystal display comprises a mounting frame 1, wherein the mounting frame 1 is a metal frame, such as an iron frame, an aluminum frame or a same frame, and the like, a rectangular sheet 3 is mounted in the middle position in the bottom of the mounting frame 1, and a circular groove 10 is formed between the edge of the rectangular sheet 3 and the edge of the mounting frame 1;
A plurality of rectangular seats 9 are arranged on four side edges in the rectangular groove 10, and the tops of the rectangular seats 9 extend above the rectangular sheet 3; a light guide plate 7 is arranged above the rectangular sheet 3, the bottoms of the edges of the light guide plate 7 are provided with light transmission grooves 8 corresponding to the rectangular seats 9, and the tops of the rectangular seats 9 are respectively arranged in the light transmission grooves 8;
The side surfaces of the rectangular seat 9 positioned in the light-transmitting groove 8 are respectively provided with a reflecting groove 12 facing the center of the mounting frame 1, each reflecting groove 12 is internally provided with a light source 4, and the light source 4 is opposite to the side wall of the light-transmitting groove 8.
Specifically, when the light source 4 is lighted, the light can directly irradiate on the side wall of the light transmission groove 8, so that the light can directly irradiate into the light guide plate 7, and because the light source surrounds the periphery of the light guide plate 7, when the light of a plurality of light sources simultaneously irradiates on the light guide plate 7, the light guide plate 7 can emit light more uniformly, and the problem that the illumination intensity of a screen is weakened from one end with the light source to one end without the light source can be avoided.
Further, as shown in fig. 1, at least one diffusion sheet 6 is mounted on the top of the light guide plate 7, at least one brightness enhancement sheet 5 is mounted above the diffusion sheet 6, and a black-and-white glue is arranged on the top of the brightness enhancement sheet 5 and seals the edge of the brightness enhancement sheet 5.
Further, the light source 4 is an LED light source, and a reflective layer is disposed on the inner surface of the reflective groove 12, and the reflective layer is a U-shaped reflective plate or a mirror coating.
Further, as shown in fig. 1, the surface of the rectangular plate 3 is provided with a reflective plate 2, and the light guide plate 7 is located above the reflective plate 2.
Further, a protective rubber frame 11 is arranged at the inner side surface of the mounting frame 1, the protective rubber frame 11 is distributed at the outer edge of the rectangular groove 10, and the light enhancement sheet 5, the diffusion sheet 6 and the light guide plate 7 are all located in the protective rubber frame 11.
In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are based on directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element to be referred to must have a specific direction, be constructed and operated in the specific direction, and thus should not be construed as limiting the present utility model; the terms "first," "second," "third," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "coupled," and the like are to be construed broadly, and may be fixedly coupled, detachably coupled, or integrally coupled, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The backlight lamp panel of the liquid crystal display comprises a mounting frame (1), and is characterized in that a rectangular sheet (3) is mounted in the middle position in the inner bottom of the mounting frame (1), and a return groove (10) is formed between the edge of the rectangular sheet (3) and the edge of the mounting frame (1);
A plurality of rectangular seats (9) are arranged on four side edges in the rectangular groove (10), and the tops of the rectangular seats (9) extend to the upper part of the rectangular sheet (3);
A light guide plate (7) is arranged above the rectangular sheet (3), light transmission grooves (8) corresponding to the rectangular seats (9) in position are formed in the bottoms of the edges of the light guide plate (7), and the tops of the rectangular seats (9) are respectively arranged in the light transmission grooves (8);
a reflecting groove (12) facing the center of the mounting frame (1) is formed in the side face of the rectangular seat (9) in the light transmission groove (8), a light source (4) is mounted in each reflecting groove (12), and the light source (4) is opposite to the side wall of the light transmission groove (8).
2. The backlight panel of claim 1, wherein at least one diffusion sheet (6) is installed at the top of the light guide plate (7), at least one brightness enhancement sheet (5) is installed above the diffusion sheet (6), and a black and white glue is arranged at the top of the brightness enhancement sheet (5).
3. The backlight panel of claim 1, wherein the light source (4) is an LED light source, and the reflective layer is disposed on the inner surface of the reflective cavity (12).
4. The backlight panel of claim 1, wherein the surface of the rectangular sheet (3) is provided with a reflective sheet (2), and the light guide plate (7) is located above the reflective sheet (2).
5. The backlight panel of claim 1, wherein a protective rubber frame (11) is arranged at the inner side surface of the mounting frame (1), and the protective rubber frame (11) is distributed at the outer edge of the rectangular groove (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322542676.0U CN220855406U (en) | 2023-09-19 | 2023-09-19 | Backlight lamp panel of liquid crystal display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322542676.0U CN220855406U (en) | 2023-09-19 | 2023-09-19 | Backlight lamp panel of liquid crystal display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220855406U true CN220855406U (en) | 2024-04-26 |
Family
ID=90777459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322542676.0U Active CN220855406U (en) | 2023-09-19 | 2023-09-19 | Backlight lamp panel of liquid crystal display |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220855406U (en) |
-
2023
- 2023-09-19 CN CN202322542676.0U patent/CN220855406U/en active Active
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