CN203849450U - Light guide plate - Google Patents
Light guide plate Download PDFInfo
- Publication number
- CN203849450U CN203849450U CN201420088361.1U CN201420088361U CN203849450U CN 203849450 U CN203849450 U CN 203849450U CN 201420088361 U CN201420088361 U CN 201420088361U CN 203849450 U CN203849450 U CN 203849450U
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- Prior art keywords
- guide plate
- light guide
- incidence
- plate according
- face
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- Planar Illumination Modules (AREA)
Abstract
The utility model relates to a light guide plate comprising an incidence face, an emitting face crossed with the incidence face and a reflection face opposite to the emitting face, wherein a number of strip-shaped microstructures are uniformly distributed on the incidence face, a number of micro-prism structures are uniformly distributed on the emitting face, and a number of screen dots are uniformly distributed on the reflection face. Through the number of strip-shaped microstructures uniformly distributed on the incidence face of the light guide plate of the utility model, an incident light angle is increased when LED light enters, a problem of frame firefly phenomena is solved, LEDs can be reduced in number, and cost and energy consumption can be saved. The emitting face of the light guide plate of the utility model is provided with the number of micro-prism structures that have good light focusing functions; a backlight module adopting the light guide plate can be reduced in size, assembly number and cost. The reflection face of the light guide plate of the utility model is provided with the number of screen dots, and therefore LED light can be uniformly reflected upward and an area source is formed; a light ray utilization rate is improved, and the light guide plate is improved in luminance and frame chroma uniformity.
Description
Technical field
The utility model relates to a kind of light guide plate.
Background technology
At present, for small-sized, thinner backlight module, adopt LED side-light type illumination, wherein the light guide plate structure that is absolutely necessary more.The plane of incidence of existing light guide plate does mirror polish processing conventionally, less than normal because of light inlet angle when LED light enters, cause picture to occur firefly phenomenon, as need head it off, existing scheme is must increase LED quantity or increase light guide plate to glue frame distance, causes cost and energy consumption to rise.
Summary of the invention
The purpose of this utility model is to provide a kind of light guide plate that can be added to optic angle degree for the deficiencies in the prior art.
To achieve these goals, the utility model adopts following technical scheme: a kind of light guide plate, comprise the plane of incidence, the exit facet crossing with the plane of incidence and the reflecting surface relative with exit facet, the plane of incidence is evenly distributed with some strip microstructures, exit facet is evenly distributed with some micro-prism structures, and reflecting surface is evenly distributed with some sites.
Further, the xsect of described strip microstructure is semicircle, and its apex height is 20～80 μ m, and the spacing between two adjacent strip microstructure summits is 40～160 μ m.
Further, the xsect of described strip microstructure is polygon, and its apex height is 20～80 μ m, and the spacing between two adjacent strip microstructure summits is 40～160 μ m.
Further, described micro-prism structure is rectangular pyramid projection, and its apex height is 20～80 μ m, and the distance between two neighbour node summits is 40～160 μ m.
Further, described site is hemispherical projections, and its apex height is 20～80 μ m, and the distance between two neighbour node summits is 40～160 μ m.
Further, described site is pyramid projection, and its apex height is 20～80 μ m, and the distance between two neighbour node summits is 40～160 μ m.
Further, described site offers ring-shaped groove around.
Further, described ring-shaped groove is the ring-shaped groove of " V " font, and the degree of depth of ring-shaped groove is 10 ~ 50 μ m.
Further, the described plane of incidence and exit facet are all coated with the anti-reflective film that a layer thickness is 0.01 ~ 0.05mm.
Further, described exit facet one side is provided with water barrier.
The beneficial effects of the utility model are: the plane of incidence of the utility model light guide plate is provided with some strip microstructures, when LED light is entered, are added to optic angle degree, have solved picture firefly phenomenon, and can reduce by LED number, have saved cost and energy consumption.The exit facet of the utility model light guide plate is provided with some micro-prism structures, and the light-focusing function that this micro-prism structure tool is good can reduce volume, component count and the cost of backlight module that adopts this light guide plate.The reflecting surface of the utility model light guide plate is provided with some sites, makes LED light evenly upwards reflect to form area source, has improved the utilization factor of light, is all once improving the briliancy of light guide plate and picture colourity.
brief description of the drawings:
Fig. 1 is perspective view of the present utility model.
Fig. 2 is structural representation of the present utility model.
Reference numeral is: 1-plane of incidence, 2-exit facet, 3-reflecting surface, 4-strip microstructure, 5-micro-prism structure, 6-site, 7-ring-shaped groove.
embodiment:
For the ease of those skilled in the art's understanding, be further described below in conjunction with embodiment and 1 ~ 2 pair of the utility model of accompanying drawing, the content that embodiment is mentioned is not to restriction of the present utility model.
See Fig. 1, a kind of light guide plate, comprises the plane of incidence 1, the exit facet 2 crossing with the plane of incidence 1 and the reflecting surface 3 relative with exit facet 2, and the plane of incidence 1 is evenly distributed with some strip microstructures 4, exit facet 2 is evenly distributed with some micro-prism structures 5, and reflecting surface 3 is evenly distributed with some sites 6.The utility model light guide plate is roughly rectangular, and it adopts the translucent materials such as acryl resin, polycarbonate resin, polyvinyl resin or glass to make conventionally, of the present utility model being uniformly distributed as rectangular array distribution.
The plane of incidence 1 of the utility model light guide plate is provided with some strip microstructures 4, when LED light is entered, is added to optic angle degree, has solved picture firefly phenomenon, and can reduce by LED number, has saved cost and energy consumption.The exit facet 2 of the utility model light guide plate is provided with some micro-prism structures 5, and the good light-focusing function of these micro-prism structure 5 tools can reduce volume, component count and the cost of backlight module that adopts this light guide plate.The reflecting surface 3 of the utility model light guide plate is provided with some sites 6, makes LED light evenly upwards reflect to form area source, has improved the utilization factor of light, is all once improving the briliancy of light guide plate and picture colourity.
In the present embodiment, the xsect of described strip microstructure 4 is semicircle, and its apex height is 20～80 μ m, and the spacing between two adjacent strip microstructure 4 summits is 40～160 μ m.
The utility model another kind preferably embodiment is: the xsect of described strip microstructure 4 is polygon, and its apex height is 20～80 μ m, and the spacing between two adjacent strip microstructure 4 summits is 40～160 μ m.Preferably, polygon is triangle, rectangle, rhombus or trapezoidal, more preferred, and polygon is triangle.
In the present embodiment, described micro-prism structure 5 is rectangular pyramid projection, and its apex height is 20～80 μ m, and the distance between two neighbour node 6 summits is 40～160 μ m.Micro-prism structure 5 can improve the briliancy of light in the time of exit facet 2 outgoing, plays light-focusing function, also has the function that light is evenly distributed.
In the present embodiment, described site 6 is hemispherical projections, and its apex height is 20～80 μ m, and the distance between two neighbour node 6 summits is 40～160 μ m.
The utility model another kind preferably embodiment is: described site 6 is pyramid projection, and its apex height is 20～80 μ m, and the distance between two neighbour node 6 summits is 40～160 μ m.Preferably, pyramid projection is triangular pyramid projection, rectangular pyramid projection or hexagonal pyramid projection, more preferred, and pyramid projection is triangular pyramid projection.
In the present embodiment, described site 6 offers ring-shaped groove 7 around.Due to around offer ring-shaped groove 7, make LED light evenly upwards reflect to form area source, improved the utilization factor of light, all once improving the briliancy of light guide plate and picture colourity.
In the present embodiment, described ring-shaped groove 7 is the ring-shaped groove 7 of " V " font, and the degree of depth of ring-shaped groove 7 is 10 ~ 50 μ m.
In the present embodiment, the described plane of incidence 1 and exit facet 2 are all coated with the anti-reflective film that a layer thickness is 0.01 ~ 0.05mm.
Due in the time that light is surperficial by one, this surface is generally reflected the light of injecting that has about 4%, thereby for reducing the loss of luminous energy, is equipped with anti-reflective film, to increase light transmission rate on the plane of incidence 1 of this light guide plate and exit facet 2.
In the present embodiment, described exit facet 2 one sides are provided with water barrier.Exit facet 2 one sides of the utility model light guide plate are provided with water barrier, can prevent that light guide plate from softening producing deformation because making moist, thereby make this light guide plate remain good optical characteristics.
Above-described embodiment is preferably implementation of the utility model, and in addition, the utility model can also be realized by alternate manner, and any apparent replacement is all within protection domain of the present utility model without departing from the concept of the premise utility.
Claims (10)
1. a light guide plate, comprise the plane of incidence, the exit facet crossing with the plane of incidence and the reflecting surface relative with exit facet, it is characterized in that: the plane of incidence is evenly distributed with some strip microstructures, and exit facet is evenly distributed with some micro-prism structures, and reflecting surface is evenly distributed with some sites.
2. a kind of light guide plate according to claim 1, is characterized in that: the xsect of described strip microstructure is for semicircle, and its apex height is 20～80 μ m, and the spacing between two adjacent strip microstructure summits is 40～160 μ m.
3. a kind of light guide plate according to claim 1, is characterized in that: the xsect of described strip microstructure is polygon, and its apex height is 20～80 μ m, and the spacing between two adjacent strip microstructure summits is 40～160 μ m.
4. a kind of light guide plate according to claim 1, is characterized in that: described micro-prism structure is rectangular pyramid projection, and its apex height is 20～80 μ m, and the distance between two neighbour node summits is 40～160 μ m.
5. a kind of light guide plate according to claim 1, is characterized in that: described site is hemispherical projections, and its apex height is 20～80 μ m, and the distance between two neighbour node summits is 40～160 μ m.
6. a kind of light guide plate according to claim 1, is characterized in that: described site is pyramid projection, and its apex height is 20～80 μ m, and the distance between two neighbour node summits is 40～160 μ m.
7. a kind of light guide plate according to claim 1, is characterized in that: described site offers ring-shaped groove around.
8. a kind of light guide plate according to claim 7, is characterized in that: the ring-shaped groove that described ring-shaped groove is " V " font, the degree of depth of ring-shaped groove is 10 ~ 50 μ m.
9. a kind of light guide plate according to claim 1, is characterized in that: the described plane of incidence and exit facet are all coated with the anti-reflective film that a layer thickness is 0.01 ~ 0.05mm.
10. a kind of light guide plate according to claim 1, is characterized in that: described exit facet one side is provided with water barrier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420088361.1U CN203849450U (en) | 2014-02-28 | 2014-02-28 | Light guide plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420088361.1U CN203849450U (en) | 2014-02-28 | 2014-02-28 | Light guide plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203849450U true CN203849450U (en) | 2014-09-24 |
Family
ID=51562449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420088361.1U Expired - Lifetime CN203849450U (en) | 2014-02-28 | 2014-02-28 | Light guide plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203849450U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105353445A (en) * | 2015-11-13 | 2016-02-24 | 重庆鑫翎创福光电科技股份有限公司 | PMMA light guide plate with single-side microstructure and light output micro prism structure |
| CN105911631A (en) * | 2015-02-24 | 2016-08-31 | 欧姆龙株式会社 | Light guide and light emitting device |
| CN107015305A (en) * | 2017-04-28 | 2017-08-04 | 苏州艾立昇科技有限公司 | Plate lighting ultra-thin light guide board |
| CN108571710A (en) * | 2018-05-17 | 2018-09-25 | 浙江彩丞照明科技有限公司 | A kind of anti-dazzle light diffusing sheet and LED light device for eliminating moire |
| CN109100872A (en) * | 2017-12-29 | 2018-12-28 | 珠海迈时光电科技有限公司 | Beam splitter and optical device comprising identical beam splitter |
| CN110161613A (en) * | 2018-03-30 | 2019-08-23 | 京东方科技集团股份有限公司 | Backlight module and preparation method thereof, liquid crystal display device |
| CN111665591A (en) * | 2020-06-29 | 2020-09-15 | 武汉华星光电技术有限公司 | Light guide plate, backlight module and liquid crystal display module |
| CN113138496A (en) * | 2021-04-16 | 2021-07-20 | 武汉华星光电半导体显示技术有限公司 | Backlight module and display device |
| EP3916296A1 (en) * | 2020-05-29 | 2021-12-01 | Beijing Xiaomi Mobile Software Co., Ltd. | Optical component, backlight module, electronic equipment, and method for manufacturing optical component |
-
2014
- 2014-02-28 CN CN201420088361.1U patent/CN203849450U/en not_active Expired - Lifetime
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105911631B (en) * | 2015-02-24 | 2020-01-21 | 欧姆龙株式会社 | Light guide and light emitting device |
| CN105911631A (en) * | 2015-02-24 | 2016-08-31 | 欧姆龙株式会社 | Light guide and light emitting device |
| CN105353445A (en) * | 2015-11-13 | 2016-02-24 | 重庆鑫翎创福光电科技股份有限公司 | PMMA light guide plate with single-side microstructure and light output micro prism structure |
| CN107015305A (en) * | 2017-04-28 | 2017-08-04 | 苏州艾立昇科技有限公司 | Plate lighting ultra-thin light guide board |
| CN109100872A (en) * | 2017-12-29 | 2018-12-28 | 珠海迈时光电科技有限公司 | Beam splitter and optical device comprising identical beam splitter |
| CN110161613A (en) * | 2018-03-30 | 2019-08-23 | 京东方科技集团股份有限公司 | Backlight module and preparation method thereof, liquid crystal display device |
| CN108571710A (en) * | 2018-05-17 | 2018-09-25 | 浙江彩丞照明科技有限公司 | A kind of anti-dazzle light diffusing sheet and LED light device for eliminating moire |
| EP3916296A1 (en) * | 2020-05-29 | 2021-12-01 | Beijing Xiaomi Mobile Software Co., Ltd. | Optical component, backlight module, electronic equipment, and method for manufacturing optical component |
| US11474291B2 (en) | 2020-05-29 | 2022-10-18 | Beijing Xiaomi Mobile Software Co., Ltd. | Optical component, backlight module, electronic equipment, and method for manufacturing optical component |
| CN111665591A (en) * | 2020-06-29 | 2020-09-15 | 武汉华星光电技术有限公司 | Light guide plate, backlight module and liquid crystal display module |
| CN111665591B (en) * | 2020-06-29 | 2021-09-03 | 武汉华星光电技术有限公司 | Light guide plate, backlight module and liquid crystal display module |
| US11852920B2 (en) | 2020-06-29 | 2023-12-26 | Wuhan China Star Optoelectronics Technology Co., Ltd. | Light guide plate, backlight module, and liquid crystal display module |
| CN113138496A (en) * | 2021-04-16 | 2021-07-20 | 武汉华星光电半导体显示技术有限公司 | Backlight module and display device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 523000 Dongguan City, Shek Pai Town Po Po Industrial Zone Patentee after: GUANGDONG GMA PHOTOELECTRIC TECHNOLOGY CO.,LTD. Address before: 523000 Dongguan City, Shek Pai Town Po Po Industrial Zone Patentee before: GUANGDONG GMA OPTOELECTRONICS TECHNOLOGY CO.,LTD. |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 464000 No. 1 Fuqiang Road, Jinniu Industrial Agglomeration Area, Shuhe District, Xinyang City, Henan Province Patentee after: GUANGDONG GMA OPTOELECTRONIC TECHNOLOGY Co.,Ltd. Address before: 523000 Puxin Industrial Zone, Shipai Town, Dongguan City, Guangdong Province Patentee before: GUANGDONG GMA PHOTOELECTRIC TECHNOLOGY CO.,LTD. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140924 |