CN220020066U - Novel backlight module - Google Patents
Novel backlight module Download PDFInfo
- Publication number
- CN220020066U CN220020066U CN202321718645.XU CN202321718645U CN220020066U CN 220020066 U CN220020066 U CN 220020066U CN 202321718645 U CN202321718645 U CN 202321718645U CN 220020066 U CN220020066 U CN 220020066U
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- China
- Prior art keywords
- guide plate
- light
- light guide
- backlight module
- liquid crystal
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- 230000003287 optical effect Effects 0.000 claims abstract description 31
- 238000009826 distribution Methods 0.000 claims abstract description 25
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 22
- 230000005540 biological transmission Effects 0.000 claims abstract description 12
- 239000003086 colorant Substances 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims description 4
- 238000010923 batch production Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000002184 metal Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Abstract
The utility model relates to the technical field of backlight modules, and particularly discloses a novel backlight module, which comprises a reflecting sheet arranged at the bottom of a liquid crystal panel and a light guide plate, wherein the light guide plate is arranged between the liquid crystal panel and the reflecting sheet; the LED light source is characterized in that a plurality of optical points are printed on the light guide plate, the light transmission colors of the optical points are different, an LED light band is further arranged between the light guide plate and the reflecting sheet, and light rays of the LED light band are mapped on the liquid crystal panel after passing through the optical points. When the LED lamp strip emits light, the light of different colors printed on the optical distribution points is mapped on the liquid crystal panel through the cooperation of the reflecting sheet and the light guide plate, so that the light on the keyboard can be changed. When the lamps on the keyboard are not required to flash and the lights with different colors are required, the utility model can be adopted without adopting an expensive RGB control system, thereby playing the role of saving cost and being suitable for wide popularization and use. Meanwhile, the utility model can be suitable for various small-batch and large-batch production.
Description
Technical Field
The utility model relates to the technical field of backlight modules, in particular to a novel backlight module.
Background
With the continuous development and progress of the economy and society, the popularity of computers is increasing, and keyboards are important components of desktop computers in use. In order to improve the aesthetic property of the keyboard, a backlight module is arranged in the keyboard, and the backlight module is one of key components of the liquid crystal display panel and has the functions of supplying enough light sources with uniform brightness and distribution so that the light sources can normally display images to improve the aesthetic property of the keyboard.
In the prior art, in order to change the color of the light in the keyboard, an expensive RGB color control system is generally adopted for control, however, in some working environments and the use habits of workers, only different colors appear on the favorite keyboard, but the light on the keyboard does not need to flash, and at the moment, the expensive RGB color control system is adopted, so that the resource waste is caused, and the production cost is increased.
Disclosure of Invention
The present utility model is directed to a novel backlight module, which solves the problems set forth in the above-mentioned background art.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the novel backlight module comprises a reflecting sheet arranged at the bottom of the liquid crystal panel and a light guide plate, wherein the light guide plate is arranged between the liquid crystal panel and the reflecting sheet; the LED light source is characterized in that a plurality of optical points are printed on the light guide plate, the light transmission colors of the optical points are different, an LED light band is further arranged between the light guide plate and the reflecting sheet, and light rays of the LED light band are mapped on the liquid crystal panel after passing through the optical points.
Further, the optical dots are different in light transmission color by columns or different in light transmission color by rows.
Further, a shading sheet is arranged on the peripheral surface of the light guide plate.
Further, a plurality of protruding points are arranged on each optical distribution point.
Further, the reflector plate is provided with a mounting groove, and the LED lamp strip is mounted on the reflector plate through the mounting groove.
Further, a transparent film is arranged on the light shielding sheet, and when the light shielding sheet is arranged on the opposite light guide plate, the transparent film is abutted to a plurality of optical distribution points.
Further, a plurality of groups of supporting ribs are arranged between the light guide plate and the reflecting plate.
Further, the supporting ribs are adhered to the reflecting plate, the bottom of the light guide plate is provided with an adapting groove adapted to the supporting ribs, and each supporting rib is respectively clamped in the corresponding adapting groove.
Further, the plurality of support ribs are all made of light-proof materials.
Compared with the prior art, the utility model has the beneficial effects that: the novel backlight module is characterized by comprising a reflecting plate, a light guide plate and a liquid crystal panel. When the LED lamp strip emits light, the light printed on the optical distribution point is reflected on the liquid crystal panel through the matching of the reflecting sheet and the light guide plate, so that the light on the keyboard can be changed. Therefore, when the lamps on the keyboard are not required to flash and the lights with different colors are required, the utility model can be adopted without adopting an expensive RGB control system, thereby playing the role of saving cost and being suitable for wide popularization and use. Meanwhile, the utility model can be suitable for various small-batch and large-batch production, and has stronger adaptability.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings required for the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.
FIG. 1 is a schematic diagram of an overall structure according to an embodiment of the present utility model;
FIG. 2 is a schematic diagram of an overall explosion structure according to an embodiment of the present utility model;
FIG. 3 is a schematic diagram of a point distribution structure according to an embodiment of the present utility model;
fig. 4 is a schematic structural diagram of an LED strip according to an embodiment of the present utility model;
FIG. 5 is a schematic view of an installation structure of a support rib according to an embodiment of the present utility model;
fig. 6 is a schematic diagram of an enlarged structure of the area a in fig. 5.
Reference numerals illustrate: 1. a light shielding sheet; 2. a light guide plate; 3. a reflection sheet; 4. a transparent film; 5. optical dotting; 6. an LED lamp strip; 7. a mounting groove; 8. a bump; 9. and a support rib.
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. 1-6, the present utility model provides a technical solution: the novel backlight module comprises a reflecting sheet 3 arranged at the bottom of the liquid crystal panel and also comprises a light guide plate 2, wherein the light guide plate 2 is arranged between the liquid crystal panel and the reflecting sheet 3; the light guide plate 2 is printed with a plurality of optical distribution points 5, the light transmission colors of the optical distribution points 5 are different, an LED lamp strip 6 is further arranged between the light guide plate 2 and the reflecting sheet 3, and the light of the LED lamp strip 6 is mapped on the liquid crystal panel after passing through the optical distribution points 5.
Specifically, the novel backlight module comprises the reflecting sheet 3 arranged at the bottom of the liquid crystal panel, wherein the reflecting sheet 3 reflects the light source which is not scattered and then enters the light conduction area so as to improve the light utilization rate. The reflector plate 3 is divided into a metal reflector plate 3 and a white reflector plate 3, the metal reflector plate 3 is mainly used for reflecting a lighting lamp source, the white reflector plate 3 is used for reflecting the light guide plate 2, and the reflector plate 3 is selected according to working requirements. More specifically, the light guide plate 2 is also included, and the light guide plate 2 can be divided into a printed type and a non-printed type (injection molding type) according to different process flows. The light guide plate 2 is made of PMMA or PC material, and has refractive index greater than that of air, so that when light is emitted from the light guide plate 2 to the boundary, the light has no refractive component and is reflected back to the light guide plate 2.
The light guide plate 2 is installed between the liquid crystal panel and the reflective sheet 3, so that in use, a light source is reflected onto the liquid crystal panel by the reflective sheet 3 through the light guide plate 2. The light guide plate 2 is printed with a plurality of optical distribution points 5, the light transmission colors of the optical distribution points 5 are different, corresponding points on the printing roller can be set according to working requirements in the printing process, and the optical distribution points 5 on the light guide plate 2 can be formed after the light guide plate 2 passes through the printing roller. Therefore, the color of the pigment can be selected according to the working requirement, and the mode is convenient and quick.
More specifically, the LED strip 6 is further installed between the light guide plate 2 and the reflective sheet 3, so that a switch for controlling the LED strip 6 can be arranged on the keyboard, and the total power supply of the LED strip 6 is connected with the power supply of the keyboard, and the keyboard and the LED strip 6 can be powered by the connection of the USB with the host computer. The light of the LED lamp strip 6 is mapped on the liquid crystal panel after passing through the LED lamp strip 6. Therefore, when the LED lamp strip 6 emits light, the light printed on the optical distribution point 5 with different colors is mapped on the liquid crystal panel through the cooperation of the reflecting sheet 3 and the light guide plate 2, so that the light on the keyboard can be changed. Therefore, when the lamps on the keyboard are not required to flash and the lights with different colors are required, the utility model can be adopted without adopting an expensive RGB control system, thereby playing the role of saving cost and being suitable for wide popularization and use. Meanwhile, the utility model can be suitable for various small-batch and large-batch production, and has stronger adaptability.
In the embodiment provided by the utility model, a plurality of optical distribution points 5 are different in light transmission color according to columns or different in light transmission color according to rows. Therefore, the color inside the keyboard can be adjusted according to the working requirement, and the effect is obvious.
In the embodiment provided by the utility model, the light shielding sheet 1 is arranged on the peripheral surface of the light guide plate 2, and the light shielding sheet 1 can block the light source in a certain light emitting area, so that the light source is not leaked out, and the light gathering effect is achieved. The light shielding sheet 1 is generally made of black PC, PET, or the like.
It is known that, in the prior art, when a backlight module is processed, a plurality of groups of light holes are formed in the light guide plate 2 in the backlight module by rolling, so as to be used for light transmission operation. Conventional roll-type light guide plate 2: the metal mold is used for rolling, the mold cost is high, the optical distribution point 5 is fixed and cannot be adjusted, the mold opening cost is high, the research and development cost is high, the MOQ demand on the product is large, the cost is high, and the mold is only suitable for mass production. The utility model has the advantages that the plurality of convex points 8 are arranged on each optical distribution point 5, so that the light guide optical distribution points 5 can be adjusted in real time according to the position of the designed light source, the brightness intensity of different positions is changed, the utility model is suitable for various small-batch and large-batch production, and the working requirements can be further satisfied.
In the embodiment provided by the utility model, the mounting groove 7 is formed in the reflecting sheet 3, and the LED lamp strip 6 is mounted on the reflecting sheet 3 through the mounting groove 7, so that the stability of the LED lamp strip 6 during mounting can be improved.
In the embodiment provided by the utility model, the transparent film 4 is arranged on the light shielding sheet 1, when the light shielding sheet 1 is arranged on the opposite light guide plate 2, the transparent film 4 is abutted against the plurality of optical distribution points 5, and the optical distribution points 5 can be protected by the transparent film 4, so that the effect is better.
In the embodiment provided by the utility model, a plurality of groups of supporting ribs 9 are arranged between the light guide plate 2 and the reflecting sheet 3, so that the collapse of the light guide plate 2 and the reflecting sheet 3 can be prevented, and the service life of the backlight module is prolonged.
In the embodiment provided by the utility model, the supporting ribs 9 are adhered to the reflecting sheet 3, the bottom of the light guide plate 2 is provided with the adapting grooves adapted to the supporting ribs 9, and each supporting rib 9 is respectively clamped in the corresponding adapting groove, so that the stability of the light guide plate 2 and the reflecting sheet 3 during installation can be further improved, and the situation that the light guide plate 2 and the reflecting sheet 3 fall off is avoided.
In the embodiment provided by the utility model, the plurality of supporting ribs 9 are made of opaque materials, so that the light gathering effect can be further achieved, and the light utilization rate in the keyboard can be fully improved.
It should be noted that the electric equipment and the external power supply related to the utility model can be powered by the storage battery.
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 (9)
1. Novel backlight unit wraps reflector plate (3) of setting in liquid crystal display panel bottom, its characterized in that:
the liquid crystal display device further comprises a light guide plate (2), wherein the light guide plate (2) is arranged between the liquid crystal panel and the reflecting sheet (3);
a plurality of optical distribution points (5) are printed on the light guide plate (2), and the light transmission colors of the optical distribution points (5) are different;
an LED lamp strip (6) is further arranged between the light guide plate (2) and the reflecting sheet (3), and light rays of the LED lamp strip (6) are mapped on the liquid crystal panel after passing through the optical distribution point (5).
2. The novel backlight module according to claim 1, wherein: the optical distribution points (5) are different in light transmission color according to columns or different in light transmission color according to rows.
3. The novel backlight module according to claim 1, wherein: the periphery of the light guide plate (2) is provided with a shading sheet (1).
4. The novel backlight module according to claim 1, wherein: and a plurality of salient points (8) are arranged on each optical distribution point (5).
5. The novel backlight module according to claim 1, wherein: the LED lamp strip (6) is arranged on the reflecting sheet (3) through the mounting groove (7).
6. A novel backlight module according to claim 3, wherein: the light shielding sheet (1) is provided with a transparent film (4), and when the light shielding sheet (1) is installed on the opposite light guide plate (2), the transparent film (4) is abutted with a plurality of optical distribution points (5).
7. The novel backlight module according to claim 1, wherein: a plurality of groups of supporting ribs (9) are arranged between the light guide plate (2) and the reflecting sheet (3).
8. The novel backlight module according to claim 7, wherein: the support ribs (9) are adhered to the reflecting sheet (3), the bottom of the light guide plate (2) is provided with an adapting groove adapted to the support ribs (9), and each support rib (9) is respectively clamped in the corresponding adapting groove.
9. The novel backlight module according to claim 7, wherein: the plurality of supporting ribs (9) are made of opaque materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321718645.XU CN220020066U (en) | 2023-07-03 | 2023-07-03 | Novel backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321718645.XU CN220020066U (en) | 2023-07-03 | 2023-07-03 | Novel backlight module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220020066U true CN220020066U (en) | 2023-11-14 |
Family
ID=88677017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321718645.XU Active CN220020066U (en) | 2023-07-03 | 2023-07-03 | Novel backlight module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220020066U (en) |
-
2023
- 2023-07-03 CN CN202321718645.XU patent/CN220020066U/en active Active
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