CN202583503U - Light guide plate and backlight module - Google Patents
Light guide plate and backlight module Download PDFInfo
- Publication number
- CN202583503U CN202583503U CN 201220164054 CN201220164054U CN202583503U CN 202583503 U CN202583503 U CN 202583503U CN 201220164054 CN201220164054 CN 201220164054 CN 201220164054 U CN201220164054 U CN 201220164054U CN 202583503 U CN202583503 U CN 202583503U
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- lgp
- thin film
- film layer
- optical thin
- several grooves
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Abstract
The utility model discloses a light guide plate which comprises at least one light incoming surface. The light incoming surface is affixed with a layer of optical thin film layer. One side, which is away from the light guide plate, of the optical thin film layer is provided with a plurality of grooves. The light guide plate has the advantages of simple structure and convenient processing, and can quickly improve the firefly problem of a side entering type LED liquid crystal display.
Description
Technical field
The utility model relates to a kind of LGP and module backlight, especially a kind of module backlight that is used for the LGP of LCDs and possesses this kind LGP.
Background technology
Along with development of science and technology, liquid crystal display is more and more ripe.Liquid crystal display generally needs module backlight that light source is provided as passive luminous display screen.Compared to the CCFL light source, LED generally adopts a plurality of discrete LED to be arranged in wire and replaces linear CCFL light source as pointolite.Advantages such as that LED not only has is frivolous, power saving, volume is little, the life-span is long, low-voltage, startup are fast also possess the notion of environmental protection simultaneously.Yet, adopt LED as the side-light type of light source module backlight in, the significantly bright effective light-emitting zone that secretly replaces, the firefly phenomenon that also promptly is commonly called as can appear near the incidence surface of LGP.If can not effectively handle this firefly phenomenon, will reduce effective light-emitting zone of LGP, and cause screen defect.
The method one that solves above-mentioned firefly phenomenon is the width that adopt to increase shading region, makes it at least greater than the length in the zone that the firefly phenomenon occurs; Two of method is under the constant situation of shading region width, thereby reduces the length that firefly phenomenon zone occurs through the distance between two led light sources that reduce adjacent setting.Yet, these two kinds of methods or the effective viewing area that has reduced LCDs, or increased the quantity of LED, improved the cost of product.
So people begin to be employed on the incidence surface of LGP and carry out design grid point or machining place groove, but the site design is loaded down with trivial details, and the proving time is long; Machining groove cost is high, and the time is also long, and can't effectively improve the light inlet section firefly phenomenon of backlight fast.
Summary of the invention
In order to overcome above-mentioned defective, the utility model provides a kind of LGP and module backlight, and this light conducting plate structure is simple, and is easy to process, can improve the firefly problem of side entering type LED LCDs fast.
The utility model for the technical scheme that solves its technical matters and adopt is: a kind of LGP; Has at least one incidence surface; On said incidence surface, attach one deck optical thin film layer, and this optical thin film layer is provided with several grooves on the side away from said LGP.
As the further improvement of the utility model, several grooves on the said optical thin film layer are same structure unit periodic regularity and distribute.
As the further improvement of the utility model, several grooves on the said optical thin film layer are the regular combination distribution in different structure unit.
As the further improvement of the utility model, the profile of said several grooves is band pinnacle corner saw profile of tooth.
As the further improvement of the utility model, the profile of said several grooves is the serrate at band dome angle.
The utility model also provides a kind of module backlight, and said module backlight comprises the LGP that power is above-mentioned and is attached at the optical thin film layer on the LGP incidence surface, and this optical thin film layer is provided with several grooves on the side away from said LGP.
The beneficial effect of the utility model is: through on the incidence surface of LGP, attaching the optical thin film that has groove; Incidence surface formation broached-tooth design at LGP increases beam angle and shortens light mixing distance, improves the firefly problem of side entering type LED LCDs thereby can arrange in pairs or groups fast.It is not only easy to process, and cost is low, and the cycle is short, can dwindle cost of products, and enterprise competitiveness is provided.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is an A portion structure for amplifying synoptic diagram among Fig. 1;
Fig. 3 is the utility model optical principle synoptic diagram;
Fig. 4 is a B portion structure for amplifying synoptic diagram among Fig. 3.
In conjunction with accompanying drawing, explanation below doing:
1---LGP 2---incidence surface
3---optical thin film layer 4---groove
5---led light source 6---substrate
7---light
Embodiment
A kind of LGP 1 like Fig. 1, shown in 2, on the incidence surface 2 of LGP 1, attach one deck optical thin film layer 3, and this optical thin film layer 3 is provided with several grooves 4 on the side away from LGP 1.In the present embodiment, several grooves are the distribution of same structure unit periodic regularity, and the profile of each groove is band pinnacle corner saw profile of tooth.Certainly, several grooves also can be the regular combination distribution in different structure unit, and the profile of its groove also can be the serrate at band dome angle.
A kind of module backlight, (part of only drawing assembly) as shown in Figure 3, it comprises substrate 6, led light source 5 and above-mentioned LGP 1; Promptly be pasted with the optical thin film layer 3 of serrate ditch 4 on the side near led light source 5 at the incidence surface of LGP 1, like this, the light 7 that led light source sends is through the refraction action of the groove on the optical thin films of with groove; Spread; Thereby the shortening light mixing distance reduces firefly phenomenon zone, and its optical principle is as shown in Figure 4.
Above embodiment is with reference to accompanying drawing; Preferred embodiment to the utility model is elaborated; Those skilled in the art is through carrying out modification or the change on the various forms to the foregoing description; But do not deviate under the situation of essence of the utility model, all belong within the protection domain of the utility model.
Claims (6)
1. a LGP has at least one incidence surface, it is characterized in that: on said incidence surface, attach one deck optical thin film layer, and this optical thin film layer is provided with several grooves on the side away from said LGP.
2. LGP according to claim 1 is characterized in that: several grooves on the said optical thin film layer are same structure unit periodic regularity and distribute.
3. LGP according to claim 1 is characterized in that: several grooves on the said optical thin film layer are the regular combination distribution in different structure unit.
4. LGP according to claim 1 is characterized in that: the profile of said several grooves is band pinnacle corner saw profile of tooth.
5. LGP according to claim 1 is characterized in that: the profile of said several grooves is the serrate at band dome angle.
6. module backlight; It is characterized in that: said module backlight comprises in the claim 1 to 5 each described LGP and is attached at the optical thin film layer on the LGP incidence surface, and this optical thin film layer is provided with several grooves on the side away from said LGP.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220164054 CN202583503U (en) | 2012-04-18 | 2012-04-18 | Light guide plate and backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220164054 CN202583503U (en) | 2012-04-18 | 2012-04-18 | Light guide plate and backlight module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202583503U true CN202583503U (en) | 2012-12-05 |
Family
ID=47252903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220164054 Expired - Fee Related CN202583503U (en) | 2012-04-18 | 2012-04-18 | Light guide plate and backlight module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202583503U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103376495A (en) * | 2012-04-18 | 2013-10-30 | 昆山康佳电子有限公司 | Light guide plate and backlight module |
| WO2014201806A1 (en) * | 2013-06-21 | 2014-12-24 | 京东方科技集团股份有限公司 | Light guide panel and backlight module using the light guide panel, and display device |
-
2012
- 2012-04-18 CN CN 201220164054 patent/CN202583503U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103376495A (en) * | 2012-04-18 | 2013-10-30 | 昆山康佳电子有限公司 | Light guide plate and backlight module |
| WO2014201806A1 (en) * | 2013-06-21 | 2014-12-24 | 京东方科技集团股份有限公司 | Light guide panel and backlight module using the light guide panel, and display device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200610 Address after: No. 999, Zhongdu Avenue, Chuzhou City, Anhui Province Patentee after: ANHUI KONKA ELECTRONICS Co.,Ltd. Address before: 215300 No. 189 Qianjin East Road, Kunshan Development Zone, Jiangsu, Suzhou Patentee before: KUNSHAN KONKA ELECTRONICS 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: 20121205 Termination date: 20210418 |