CN201425632Y - Lightweight light guide plate and backlight module thereof - Google Patents
Lightweight light guide plate and backlight module thereof Download PDFInfo
- Publication number
- CN201425632Y CN201425632Y CN 200920137987 CN200920137987U CN201425632Y CN 201425632 Y CN201425632 Y CN 201425632Y CN 200920137987 CN200920137987 CN 200920137987 CN 200920137987 U CN200920137987 U CN 200920137987U CN 201425632 Y CN201425632 Y CN 201425632Y
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- China
- Prior art keywords
- guide plate
- light guide
- triangle
- lightweight
- skewback
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Abstract
The utility model relates to a lightweight light guide plate and a backlight module thereof. The thickness of the light guide plate is gradually reduced from four edges of the light guide plate to thecentral point of the light guide plate, thereby forming a concave portion. Pluralities of screen dots are disposed on the concave portion, and the unit area density of the screen dots is gradually increased from the four edges of the light guide plate to the central point of the light guide plate. The lightweight light guide plate comprises the light guide plate; an optical film group is disposedon a plane of the light guide plate; a plurality of light-emitting diodes are respectively arranged at the four edges of the light guide plate; a reflecting plate is opposite to the concave portion of the light guide plate; a back frame provided with the reflecting plate is used for containing the light-emitting diodes and the light guide plate and fixing the light-emitting diodes at the four edges of the light guide plate. The lightweight light guide plate and the backlight module thereof have the advantages of being capable of lowering weight of the light guide plate and the backlight module thereof to achieve the purpose of lightweight, and saving cost of light guide plate materials.
Description
[technical field]
The utility model refers in particular to a kind of lightweight light guide plate and module backlight thereof about a kind of light guide plate and module backlight thereof, is used to reduce the weight of light guide plate and module backlight thereof.
[background technology]
Because the manufacturing technology of liquid crystal indicator is progressive fast, with and have light, thin, power saving and an advantage such as radiationless, therefore make liquid crystal indicator be applied in widely on the industries such as personal digital assistant, mobile computer, LCD screen and TV, but because liquid crystal indicator is not a self-luminous display device, so need to cooperate the light source that module backlight provided, could show the picture that will show.In order to allow liquid crystal indicator meet the demand of slimming, so the slimming of module backlight becomes the target that primarily reaches in the liquid crystal indicator, utilize a kind of existing module backlight of side entering type light source can reach the requirement of slimming at present, this existing module 1 backlight, as shown in Figure 1, it comprises: a light guide plate 11; One optical diaphragm group 12, it is located at the upper surface of this light guide plate 11; The lower surface of this light guide plate 11 is located in a plurality of sites 13, and the unit area density of these a plurality of sites 13 is increased progressively toward the middle part of this light guide plate 11 respectively gradually by the relative both sides of this light guide plate 11; Two light sources 14, it is located at the relative both sides of this light guide plate 11 respectively; One reflector plate 15, it is located at the below of this light guide plate 11; Reach a back of the body frame 16, which is provided with this reflector plate 15; Wherein should back of the body frame 16 ccontaining this two light source 14 and this light guide plate 11.
But existing this module 1 backlight must use a light guide plate 11, it is a complete platy structure (as shown in Figure 1), when especially this light guide plate 11 is applied to the liquid crystal indicator of large-size, therefore the volume of this light guide plate 11 and weight can increase the cost of light guide plate weight, module weight backlight and light guide plate material along with increase.
[utility model content]
One of technical problem to be solved in the utility model is to provide a kind of lightweight light guide plate, the cost that it can reduce the weight of light guide plate and save the light guide plate material.
Two of technical problem to be solved in the utility model is to provide a kind of module backlight of lightweight light guide plate, the cost that it can reduce the weight of module backlight and can save the light guide plate material.
The utility model is what one of to solve the problems of the technologies described above by the following technical programs: a kind of lightweight light guide plate, the thickness of this light guide plate is successively decreased gradually and forms a recess toward a central point of this light guide plate respectively by four edge of this light guide plate, this recess is located in a plurality of sites, and the unit area density of these a plurality of sites is increased progressively gradually by this four edge of this light guide plate this central point toward this light guide plate.
This light guide plate comprises four triangle skewbacks, wherein the thickness of each triangle skewback is successively decreased toward a drift angle by a base, and this drift angle of each triangle skewback is located at this central point of this light guide plate and a side of each triangle skewback and a side of another triangle skewback and is linked to each other.
This light guide plate is a rectangular light guide plate, this rectangular light guide plate comprises four triangle skewbacks, wherein the thickness of each triangle skewback is successively decreased toward a drift angle by a base, this drift angle of each triangle skewback is located at this central point of this light guide plate and a side of each triangle skewback and a side of another triangle skewback and is linked to each other, wherein these two triangle skewbacks be oppositely arranged and in addition two triangle skewbacks be oppositely arranged equally, two bases of these two triangle skewbacks are greater than these two leg-of-mutton two bases in addition in addition.
The utility model be solve the problems of the technologies described above by the following technical programs two: a kind of module backlight of lightweight light guide plate, comprise a light guide plate, one optical diaphragm group, a plurality of light emitting diodes, one reflector plate, and one the back of the body frame, this back of the body frame is provided with this reflector plate, and should carry on the back ccontaining these a plurality of light emitting diodes of frame and this light guide plate, the thickness of described light guide plate is successively decreased gradually and forms a recess toward a central point of this light guide plate respectively by four edge of this light guide plate, this recess of this light guide plate is located in a plurality of sites, and the unit area density of these a plurality of sites is increased progressively toward this central point of this light guide plate respectively gradually by this four edge of this light guide plate, this blooming piece is mounted on a plane of this light guide plate, these a plurality of light emitting diodes are located at this four edge of this light guide plate respectively, this reflector plate is with respect to this recess of this light guide plate, and this back of the body frame is fixed these a plurality of light emitting diodes this four edge in this light guide plate.
This light guide plate comprises four triangle skewbacks, wherein the thickness of each triangle skewback is successively decreased toward a drift angle by a base, this drift angle of each triangle skewback is located at this central point of this light guide plate, and a side of each triangle skewback links to each other with a side of another triangle skewback.
This light guide plate is a rectangular light guide plate, this rectangular light guide plate comprises four triangle skewbacks, wherein the thickness of each triangle skewback is successively decreased toward a drift angle by a base, this drift angle of each triangle skewback is located at this central point of this light guide plate, one side of each triangle skewback links to each other with a side of another triangle skewback, wherein these two triangle skewbacks be oppositely arranged and in addition two triangle skewbacks be oppositely arranged equally, two bases of these two triangle skewbacks are greater than these two leg-of-mutton two bases in addition in addition.
The advantage of the utility model lightweight light guide plate and module backlight thereof is: can reduce the weight of light guide plate and module backlight thereof, to reach light-weighted purpose; Can save the cost of light guide plate material.
[description of drawings]
The utility model will be further described in conjunction with the embodiments with reference to the accompanying drawings.
Fig. 1 is the diagrammatic cross-section of existing module backlight.
Fig. 2 is the synoptic diagram of the lightweight light guide plate of the utility model embodiment.
Fig. 3 is the diagrammatic cross-section of module backlight of the lightweight light guide plate of the utility model embodiment.
Fig. 4 is the schematic top plan view of module backlight of the lightweight light guide plate of the utility model embodiment.
[embodiment]
The utility model lightweight light guide plate 21, as shown in Figure 2, the thickness of this light guide plate 21 is successively decreased gradually and forms a recess 211 toward a central point of this light guide plate 21 respectively by four edge of this light guide plate 21; Reach a plurality of sites 212 and be located at this recess 211, and the unit area density of these a plurality of sites 212 is increased progressively gradually by this four edge this central point toward this light guide plate 21.
Wherein this light guide plate 21 comprises four triangle skewbacks 213, wherein the thickness of each triangle skewback 213 is successively decreased toward a drift angle 2132 by a base 2131, this drift angle 2132 of each triangle skewback 213 is located at this central point of this light guide plate 21, and a side 2133 of each triangle skewback 213 and a side 2133 of another triangle skewback 213 link to each other.
These two triangle skewbacks 213 are oppositely arranged and other two triangle skewbacks 213 are oppositely arranged equally, when this light guide plate 21 is a rectangular light guide plate, and two bases in addition of two bases of these two triangle skewbacks 213 other two triangle skewbacks 213 greater than this.
The module backlight 2 of the utility model lightweight light guide plate, as shown in Figures 3 and 4, it comprises: a light guide plate 21, its thickness is successively decreased gradually and forms a recess 211 toward a central point of this light guide plate 21 respectively by four edge of this light guide plate 21; This recess 211 of this light guide plate 21 is located in a plurality of sites 212, and the unit area density of these a plurality of sites 212 is increased progressively toward this central point of this light guide plate 21 respectively gradually by four edges of this light guide plate 21; One optical diaphragm group 22, it is located at a plane of this light guide plate 21; A plurality of light emitting diodes 23, it is located at this four edge of this light guide plate 21 respectively; One reflector plate 24, it is with respect to this recess 211 of this light guide plate 21; Reach a back of the body frame 25, which is provided with this reflector plate 24; Wherein should back of the body frame 25 ccontaining these a plurality of light emitting diodes 23 and this light guide plate 21, and will these a plurality of light emitting diodes 23 be fixed in four edges of this light guide plate 21.
Though more than described embodiment of the present utility model; but being familiar with those skilled in the art is to be understood that; our described specific embodiment is illustrative; rather than be used for qualification to scope of the present utility model; those of ordinary skill in the art are in the modification and the variation of the equivalence of doing according to spirit of the present utility model, all should be encompassed in the scope that claim of the present utility model protects.
Claims (8)
1, a kind of lightweight light guide plate, it is characterized in that: the thickness of this light guide plate is successively decreased gradually and forms a recess toward a central point of this light guide plate respectively by four edge of this light guide plate, this recess is located in a plurality of sites, and the unit area density of these a plurality of sites is increased progressively gradually by this four edge of this light guide plate this central point toward this light guide plate.
2, lightweight light guide plate as claimed in claim 1, it is characterized in that: this light guide plate comprises four triangle skewbacks, wherein the thickness of each triangle skewback is successively decreased toward a drift angle by a base, and this drift angle of each triangle skewback is located at this central point of this light guide plate and a side of each triangle skewback and a side of another triangle skewback and is linked to each other.
3, lightweight light guide plate as claimed in claim 1 is characterized in that: this light guide plate is a rectangular light guide plate.
4, lightweight light guide plate as claimed in claim 3, it is characterized in that: this rectangular light guide plate comprises four triangle skewbacks, wherein the thickness of each triangle skewback is successively decreased toward a drift angle by a base, this drift angle of each triangle skewback is located at this central point of this light guide plate and a side of each triangle skewback and a side of another triangle skewback and is linked to each other, wherein these two triangle skewbacks be oppositely arranged and in addition two triangle skewbacks be oppositely arranged equally, two bases of these two triangle skewbacks are greater than these two leg-of-mutton two bases in addition in addition.
5, a kind of module backlight of lightweight light guide plate, comprise a light guide plate, one optical diaphragm group, a plurality of light emitting diodes, one reflector plate, and one the back of the body frame, this back of the body frame is provided with this reflector plate, and should carry on the back ccontaining these a plurality of light emitting diodes of frame and this light guide plate, it is characterized in that: the thickness of described light guide plate is successively decreased gradually and forms a recess toward a central point of this light guide plate respectively by four edge of this light guide plate, this recess of this light guide plate is located in a plurality of sites, and the unit area density of these a plurality of sites is increased progressively toward this central point of this light guide plate respectively gradually by this four edge of this light guide plate, this blooming piece is mounted on a plane of this light guide plate, these a plurality of light emitting diodes are located at this four edge of this light guide plate respectively, this reflector plate is with respect to this recess of this light guide plate, and this back of the body frame is fixed these a plurality of light emitting diodes this four edge in this light guide plate.
6, the module backlight of lightweight light guide plate as claimed in claim 5, it is characterized in that: this light guide plate comprises four triangle skewbacks, wherein the thickness of each triangle skewback is successively decreased toward a drift angle by a base, this drift angle of each triangle skewback is located at this central point of this light guide plate, and a side of each triangle skewback links to each other with a side of another triangle skewback.
7, the module backlight of lightweight light guide plate as claimed in claim 6 is characterized in that: this light guide plate is a rectangular light guide plate.
8, the module backlight of lightweight light guide plate as claimed in claim 7, it is characterized in that: this rectangular light guide plate comprises four triangle skewbacks, wherein the thickness of each triangle skewback is successively decreased toward a drift angle by a base, this drift angle of each triangle skewback is located at this central point of this light guide plate, one side of each triangle skewback links to each other with a side of another triangle skewback, wherein these two triangle skewbacks be oppositely arranged and in addition two triangle skewbacks be oppositely arranged equally, two bases of these two triangle skewbacks are greater than these two leg-of-mutton two bases in addition in addition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920137987 CN201425632Y (en) | 2009-04-27 | 2009-04-27 | Lightweight light guide plate and backlight module thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920137987 CN201425632Y (en) | 2009-04-27 | 2009-04-27 | Lightweight light guide plate and backlight module thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201425632Y true CN201425632Y (en) | 2010-03-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920137987 Expired - Fee Related CN201425632Y (en) | 2009-04-27 | 2009-04-27 | Lightweight light guide plate and backlight module thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201425632Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106324904A (en) * | 2016-08-29 | 2017-01-11 | 合肥惠科金扬科技有限公司 | Vertical downward backlight module |
| CN109488954A (en) * | 2018-12-30 | 2019-03-19 | 苏州远卓科技信息有限公司 | Anti- glare LED ceiling lamp with mosquito killing function |
| CN109488948A (en) * | 2018-12-30 | 2019-03-19 | 苏州远卓科技信息有限公司 | Anti- glare LED indoor lamp with electric mosquito net |
| CN110431345A (en) * | 2016-12-13 | 2019-11-08 | 亮锐有限责任公司 | LED based lamps and lanterns |
| CN114924344A (en) * | 2022-05-31 | 2022-08-19 | 武汉华星光电技术有限公司 | Light guide plate and backlight module |
-
2009
- 2009-04-27 CN CN 200920137987 patent/CN201425632Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106324904A (en) * | 2016-08-29 | 2017-01-11 | 合肥惠科金扬科技有限公司 | Vertical downward backlight module |
| CN110431345A (en) * | 2016-12-13 | 2019-11-08 | 亮锐有限责任公司 | LED based lamps and lanterns |
| US10976481B2 (en) | 2016-12-13 | 2021-04-13 | Lumileds Llc | LED-based light fixture |
| CN109488954A (en) * | 2018-12-30 | 2019-03-19 | 苏州远卓科技信息有限公司 | Anti- glare LED ceiling lamp with mosquito killing function |
| CN109488948A (en) * | 2018-12-30 | 2019-03-19 | 苏州远卓科技信息有限公司 | Anti- glare LED indoor lamp with electric mosquito net |
| CN109488948B (en) * | 2018-12-30 | 2021-01-29 | 苏州远卓科技信息有限公司 | Anti-glare LED indoor lamp with electric mosquito net |
| CN109488954B (en) * | 2018-12-30 | 2022-01-25 | 苏州远卓科技信息有限公司 | Anti-glare LED ceiling lamp with mosquito killing function |
| CN114924344A (en) * | 2022-05-31 | 2022-08-19 | 武汉华星光电技术有限公司 | Light guide plate and backlight module |
| CN114924344B (en) * | 2022-05-31 | 2024-03-29 | 武汉华星光电技术有限公司 | Light guide plate and backlight module |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CPT TECHNOLOGY (GROUP) CO., LTD. Free format text: FORMER OWNER: CHINA PROJECTION TUBE CO., LTD. Effective date: 20130712 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130712 Address after: 350015, No. 77, Mawei Science Park, Fujian, Fuzhou Patentee after: Fujian Huaying Display Technology Co., Ltd. Patentee after: CPT DISPLAY TECHNOLOGY (SHENZHEN)CO., LTD. Address before: 350015, No. 77, Mawei Science Park, Fujian, Fuzhou Patentee before: Fujian Huaying Display Technology Co., Ltd. Patentee before: Chunghwa Picture Tubes Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171107 Address after: 350000, Fujian, Fuzhou Province, Mawei West Road, No. 1, building 6, third, fourth floor Patentee after: CPT DISPLAY TECHNOLOGY (SHENZHEN)CO., LTD. Address before: 350015, No. 77, Mawei Science Park, Fujian, Fuzhou Co-patentee before: CPT DISPLAY TECHNOLOGY (SHENZHEN)CO., LTD. Patentee before: Fujian Huaying Display Technology Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100317 Termination date: 20180427 |