CN202330758U - Novel light guide plate for back light module - Google Patents
Novel light guide plate for back light module Download PDFInfo
- Publication number
- CN202330758U CN202330758U CN2011204632322U CN201120463232U CN202330758U CN 202330758 U CN202330758 U CN 202330758U CN 2011204632322 U CN2011204632322 U CN 2011204632322U CN 201120463232 U CN201120463232 U CN 201120463232U CN 202330758 U CN202330758 U CN 202330758U
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- CN
- China
- Prior art keywords
- light
- guide plate
- module
- light source
- module backlight
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a novel light guide plate for a back light module. An incident surface of the novel light guide plate is designed to have a curved surface structure, and compared with a light guide plate of which the incident surface has a planar structure, the light guide plate has the advantage that: a photic area of the incident surface is increased, so that the utilization rate of a light source is improved, and the back light brightness of the back light module can be improved on the premise of not increasing the cost of the back light module. By the novel light guide plate, the shape of the incident surface of a light guide plate body corresponds to the shape of a corresponding side of a light source of the back light module, the utilization rate of the light source is improved further, and the back light brightness of the back light module is improved.
Description
Technical field
The utility model relates to LCD, specifically is the LGP in the backlight liquid crystal display module.
Background technology
Module backlight (Back light module) is one of key component of LCD, because liquid crystal panel itself is not luminous, the function of module backlight promptly is well-off brightness and the light source that is evenly distributed, and makes normally show image of liquid crystal panel.
The basic structure of module backlight is as shown in Figure 2, mainly is made up of light source 1, LGP 2, reflector plate 3, backboard 4, add lustre to plate 5 and glue frame 6.
Light source 1 is installed on the relative both ends of the surface of LGP 2; Light source commonly used at present has CCFL, HCFL, light emitting diode and electroluminescence sheet etc.; Wherein CCFL has characteristics such as high briliancy, high-level efficiency, life-span length, high color rendering; Add cylindrical outer shape, therefore be easy to be combined into lamellar lighting device, so be main flow at present with the CCFL with the light reflection subassembly.During use, the light source 1 outer lampshade 11 that is covered with, the light that lampshade 11 is used for light source 1 is sent is concentrated the opening part that reflexes to lampshade 11.
As shown in Figure 1; LGP 2 is plate-like structure; During installation, the both ends of the surface of LGP 2 extend lampshade 11 interior positions near light source 1 by the opening of lampshade 11 respectively, and these both ends of the surface are the incidence surface 21 of LGP 2; Light through incidence surface 21 is accepted from light source 1 is converted into line source by LGP 2 and is scattered in uniform surface light source.
Reflector plate 3 is attached at the inner bottom surface of LGP 2, will in the light reflected back LGP 2 that inner bottom surface spills, prevent that light source from leaking, to increase the service efficiency of light.
Glue frame 6 coats the outside that is arranged at light source 1 respectively, and its xsect roughly is the L type, matches with backboard 4 to be used for supporting and the protection internal material.
Existing this module backlight, the incidence surface of its LGP is a planar structure, thereby causes the utilization factor of light source limited, if will promote backlight illumination, modes such as the plate that then can only add lustre to through increase realize, so, with the cost that improves module backlight.Therefore, before not increasing cost, put, promote the brightness of module backlight, can promote competitiveness of product, make the product that the market competitiveness is more arranged, to meet the need of market.
In view of this, the inventor furthers investigate the light conducting plate structure of module backlight, and this case produces thus.
The utility model content
The purpose of the utility model provides a kind of novel optic plate that is used for module backlight, and it can improve the light source utilization factor of module backlight, under the prerequisite that does not increase module cost backlight, promotes the backlight illumination of module backlight.
To achieve these goals, the utility model adopts following technical scheme:
Be used for the novel optic plate of module backlight, have the light conducting plate body that is slab construction, the incidence surface of this light conducting plate body is a curved-surface structure.
The incidence surface of above-mentioned light conducting plate body and the corresponding setting of the shape of the side of the light source of module backlight.
The incidence surface of above-mentioned light conducting plate body is and the corresponding arc surfaced of the cylinder of single CCFL.
The incidence surface of above-mentioned light conducting plate body is the corresponding pair of arc surfaced of cylinder with side by side two CCFLs.
After adopting such scheme; The utility model is used for the novel optic plate of module backlight; Its incidence surface is designed to curved-surface structure, and the LGP that is planar structure with existing incidence surface is compared, and the LGP of the utility model has increased the light-receiving area of its incidence surface; Thereby improved the light source utilization factor, can under the prerequisite that does not increase module cost backlight, promote the backlight illumination of module backlight.
In the utility model, incidence surface and the corresponding setting of the shape of the side of the light source of module backlight with light conducting plate body can further improve the light source utilization factor, promote the backlight illumination of module backlight.
Description of drawings
Fig. 1 is the structural representation of traditional LGP;
Fig. 2 is the user mode synoptic diagram of traditional LGP;
Fig. 3 is the structural representation of the utility model embodiment one;
Fig. 4 is the user mode synoptic diagram of the LGP of embodiment one;
Fig. 5 is the structural representation of the utility model embodiment two;
Fig. 6 is the user mode synoptic diagram of the LGP of embodiment two.
Label declaration:
CCFL-1 lampshade-11
LGP-2 incidence surface-21
Light conducting plate body-2a incidence surface-21a
Light conducting plate body-2b incidence surface-21b
Reflector plate-3
Backboard-4
Plate-5 adds lustre to
Glue frame-6
Embodiment
In order further to explain the technical scheme of the utility model, come the utility model is set forth in detail below in conjunction with accompanying drawing and specific embodiment.
Embodiment one:
The utility model is used for the novel optic plate of module backlight; Embodiment one is as shown in Figure 3; Have the light conducting plate body 2a that is slab construction, the incidence surface 21a of this light conducting plate body 2a is a curved-surface structure, thereby has increased the light-receiving area of incidence surface 21a; Improve the light source utilization factor, can under the prerequisite that does not increase module cost backlight, promote the backlight illumination of module backlight.
The novel optic plate of present embodiment; Be applicable to single CCFL to be the module backlight of light source; In order to have improved the light source utilization factor further, promote the backlight illumination of module backlight, incidence surface 21a is designed to and the corresponding arc surfaced of the cylinder of single CCFL.
The novel optic plate of present embodiment, its user mode is as shown in Figure 4, and the light source 1 of module backlight adopts single CCFL, and the incidence surface 21a of LGP is designed to and the corresponding arc surfaced of the cylinder of single CCFL.
Embodiment two:
The utility model is used for the novel optic plate of module backlight; Embodiment two is as shown in Figure 5; Have the light conducting plate body 2b that is slab construction, the incidence surface 21b of this light conducting plate body 2b is a curved-surface structure, thereby has increased the light-receiving area of incidence surface 21b; Improve the light source utilization factor, can under the prerequisite that does not increase module cost backlight, promote the backlight illumination of module backlight.
The novel optic plate of present embodiment; Be applicable to that with side by side two CCFLs be the module backlight of light source; In order to have improved the light source utilization factor further, promote the backlight illumination of module backlight, incidence surface 21b is designed to the corresponding pair of arc surfaced of cylinder with side by side two CCFLs.
The novel optic plate of present embodiment, its user mode is as shown in Figure 6, and two CCFLs that the light source of module backlight 1 adopts side by side, the incidence surface 21b of LGP are designed to therewith corresponding pair of arc surfaced of cylinder of two CCFLs side by side.
Claims (4)
1. be used for the novel optic plate of module backlight, have the light conducting plate body that is slab construction, it is characterized in that: the incidence surface of this light conducting plate body is a curved-surface structure.
2. the novel optic plate that is used for module backlight according to claim 1 is characterized in that: the incidence surface of above-mentioned light conducting plate body and the corresponding setting of the shape of the side of the light source of module backlight.
3. the novel optic plate that is used for module backlight according to claim 2 is characterized in that: the incidence surface of above-mentioned light conducting plate body is and the corresponding arc surfaced of the cylinder of single CCFL.
4. the novel optic plate that is used for module backlight according to claim 2 is characterized in that: the incidence surface of above-mentioned light conducting plate body for corresponding pair of arc surfaced of cylinder of side by side two CCFLs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204632322U CN202330758U (en) | 2011-11-18 | 2011-11-18 | Novel light guide plate for back light module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204632322U CN202330758U (en) | 2011-11-18 | 2011-11-18 | Novel light guide plate for back light module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202330758U true CN202330758U (en) | 2012-07-11 |
Family
ID=46442734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204632322U Expired - Fee Related CN202330758U (en) | 2011-11-18 | 2011-11-18 | Novel light guide plate for back light module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202330758U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014131225A1 (en) * | 2013-02-26 | 2014-09-04 | 合肥京东方光电科技有限公司 | Backlight module and display device |
-
2011
- 2011-11-18 CN CN2011204632322U patent/CN202330758U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014131225A1 (en) * | 2013-02-26 | 2014-09-04 | 合肥京东方光电科技有限公司 | 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20141118 |
|
| EXPY | Termination of patent right or utility model |