CN2771894Y - Structure improvement of light guide board - Google Patents
Structure improvement of light guide board Download PDFInfo
- Publication number
- CN2771894Y CN2771894Y CN 200520001873 CN200520001873U CN2771894Y CN 2771894 Y CN2771894 Y CN 2771894Y CN 200520001873 CN200520001873 CN 200520001873 CN 200520001873 U CN200520001873 U CN 200520001873U CN 2771894 Y CN2771894 Y CN 2771894Y
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- CN
- China
- Prior art keywords
- light
- guide plate
- light guide
- hollow layer
- light source
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- 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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- Planar Illumination Modules (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
The utility model relates to a backlight module set which is provided with a light conducting plate, a plurality of optical membranes and a liquid crystal panel orderly on a light-out surface of each light source, wherein more than one hollow layer is formed at the space between the light-in side and an effective luminous zone in a light conducting plate body, and one side or two sides of the hollow layer are provided with light modulating members. Thus, after the path of light rays is changed when the light rays of the light source pass through the hollow layer of the light conducting plate, the reflectivity of the light rays is increased by the light modulating members and the light rays uniformly emit towards each optical membrane. In this way, dark band regions among each light source can be eliminated and the problem that the conventional liquid crystal module set displays obvious light and dark band regions is effectively solved. In addition, the light efficiency can be enhanced, namely, the performance of the luminance and the proportion of light can be improved.
Description
Technical field
The utility model relates to the light conducting plate structure improvement of module backlight, aims to provide a light conducting plate structure that is unlikely the module backlight that forms bright, blanking bar district.
Background technology
As shown in Figure 1, the back light module unit structure cut-open view of commonly using for general liquid crystal module, it is by liquid crystal panel 10 bottom surfaces one light guide plate 20 to be set that the structure of whole module backlight is formed, the exiting surface of light guide plate 20 is provided with the blooming piece 30 that prismatic lens or diffusion sheet constitute, and be provided with reflecting plate 40 at the reflecting surface of light guide plate 20, and be provided with light source 50 at side, when the light of light source 50 ejaculations is injected light guide plate 20, can be via the refraction and the reflex of light guide plate 20 and reflecting plate 40, guide bright dipping up with light, and through the blooming piece 30 that prismatic lens or diffusion sheet constituted, being formed uniformly, light is gone out by liquid crystal panel 10 scatterings.
Because of the requirement of light emitting efficiency constantly promotes, relevant dealer all can establish light modulation structure 22 with tool light reflection function at the reflecting surface 21 of light guide plate 20 reflectings surface, the body of this light modulation structure 22 has difformities such as circle, rectangle, linear, use is to make light source after the reflection of light modulation structure 22, guide bright dipping smoothly with light source and strengthen usefulness, the perhaps variation of blooming piece such as prismatic lens or diffusion sheet 30 design is towards strengthening light transmittance efficiency, i.e. the briliancy of light and all performance of neat degree.
The utility model content
The structural improvement of the utility model light guide plate, mainly be in the light guide plate plate body, between effective luminous zone, to be formed with more than one hollow layer in the light inlet side, one side or two sides of this hollow layer are formed with the light modulation part, make the hollow layer change opticpath of the light of light source through light guide plate, temporarily transferring light spare simultaneously increases its reflectivity, can effectively distribute light also can evenly shed.
That is whole light guide plate produces the light of light source and is different from traditional opticpath, with more initiatively, positive means, effectively solve and commonly use liquid crystal module and obviously present problem bright, the blanking bar district, can more effectively distribute the light of light source.
Description of drawings
Fig. 1 is a structural representation of commonly using module backlight;
Fig. 2 is the structural representation of module backlight in the utility model;
Another looks the structural representation of face to Fig. 3 for module backlight in the utility model;
Fig. 4 is another structural representation of module backlight in the utility model;
Fig. 5 is the opticpath synoptic diagram of module backlight in the utility model;
Fig. 6 is the module backlight STRUCTURE DECOMPOSITION figure of an embodiment again in the utility model.
[figure number explanation]
A light inlet side 231 light modulation parts
The effective luminous zone of B 24 planes of incidence
10 liquid crystal panels, 25 exiting surfaces
20 light guide plate, 30 blooming pieces
21 reflectings surface, 40 reflecting plates
22 light modulation structures, 50 light sources
23 hollow layers
Embodiment
For the clear structure of the present utility model of your auditor is formed, and the overall operation mode, cooperate graphic being described as follows now:
The structural improvement of the utility model light guide plate, the basic structure of its whole module backlight is formed as shown in Figures 2 and 3, in liquid crystal panel 10 bottom surfaces one light guide plate 20 is set equally, the exiting surface of light guide plate 20 is provided with the blooming piece 30 that prismatic lens or diffusion sheet constitute, and be provided with reflecting plate 40 at the reflecting surface of light guide plate 20, and be provided with light source 50 at side, when the light of light source 50 ejaculations is injected light guide plate 20, can be via the refraction and the reflex of light guide plate 20 and reflecting plate 40, guide bright dipping up with light, and through the blooming piece 30 that prismatic lens or diffusion sheet constituted, being formed uniformly, light is gone out by liquid crystal panel 10 scatterings.
It focuses on:
Between effective luminous zone B, be formed with more than one hollow layer 23 in light inlet side A in light guide plate 20 plate bodys, this hollow layer 23 can be continuity (as shown in Figure 4) or noncontinuity (as shown in Figure 3), one side of this hollow layer 23 is formed with light modulation part 231, the body of this light modulation part 231 has difformities such as circle, rectangle, linear, the light that makes light source 50 can change its opticpath during via this hollow layer 23, as shown in Figure 5, can effectively distribute light also can evenly shed, and light source is guided reinforcement diffusion usefulness smoothly with light after the scattering of light modulation part 231; Certainly, the reflecting surface 21 of these light guide plate 20 reflectings surface or exiting surface 25 also can be provided with the light modulation structure 22 of tool light reflection function, this light modulation structure 22 can be the body of various geometric configuration, makes light source can increase the briliancy of light and all performances of neat degree through the reflex of secondary light modulation part.
In addition, the structure of this module backlight is formed also can be as shown in Figure 6, this 20 light guide plate is provided with the plane of incidence 24 in an one corner portion, its plane of incidence 24 has a unfilled corner shape, 50 of light sources are arranged at this corner portion, light then enters light guide plate 20 by this plane of incidence 24, and light guide plate 20 belows are provided with reflecting plate 40, and hollow layer 23 can be arranged at the position corresponding to light source 50, can make the light of light source 50 change its opticpath equally via this hollow layer 23, with more active, positive means, effective solution is commonly used liquid crystal module and is obviously presented bright, the problem in blanking bar district can more effectively be distributed the light of light source.
As mentioned above, the utility model provides module backlight another preferable feasible light conducting plate structure, so, offer the application of novel patent in accordance with the law; Yet, above implementation and graphic shown in, be one of this creation preferred embodiment, be not to limit to this creation with this, be with, approximate, identical with the structure of this creation, device, feature etc. such as, all should belong within the creation purpose and claim of this creation.
Claims (5)
1, a kind of structural improvement of light guide plate, its module backlight are to be provided with a light guide plate, several pieces of blooming pieces and liquid crystal panel on the exiting surface of each light source in regular turn; It is characterized in that:
Between effective luminous zone, be formed with more than one hollow layer in the light inlet side in this light guide plate plate body, one side of this hollow layer is formed with the light modulation part, the hollow layer that the light of this light source sees through light guide plate changes opticpath, increases its dispersion effect by the light modulation part simultaneously.
2, a kind of structural improvement of light guide plate, its module backlight are to be provided with a light guide plate, several pieces of blooming pieces and liquid crystal panel on the exiting surface of each light source in regular turn; It is characterized in that:
Between effective luminous zone, be formed with more than one hollow layer in the light inlet side in this light guide plate plate body, two sides of this hollow layer all are formed with the light modulation part, the hollow layer that the light of this light source sees through light guide plate changes opticpath, increases its dispersion effect by the light modulation part simultaneously.
3, the structural improvement of light guide plate as claimed in claim 1 or 2 is characterized in that: this light source is the avris that is arranged at light guide plate, and the light guide plate below is provided with reflecting plate.
4, the structural improvement of light guide plate as claimed in claim 1 or 2, it is characterized in that: this light guide plate is provided with the plane of incidence in an one corner portion, its plane of incidence has a unfilled corner shape, light source then is arranged at this corner portion, light then enters light guide plate by this plane of incidence, and the light guide plate below is provided with reflecting plate.
5, the structural improvement of light guide plate as claimed in claim 1 or 2 is characterized in that: the reflecting surface or the exiting surface of this light guide plate are formed with light modulation structure, and its light modulation structure can be the body of various geometric configuration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520001873 CN2771894Y (en) | 2005-02-02 | 2005-02-02 | Structure improvement of light guide board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520001873 CN2771894Y (en) | 2005-02-02 | 2005-02-02 | Structure improvement of light guide board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2771894Y true CN2771894Y (en) | 2006-04-12 |
Family
ID=36705686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520001873 Expired - Fee Related CN2771894Y (en) | 2005-02-02 | 2005-02-02 | Structure improvement of light guide board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2771894Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103913797A (en) * | 2014-03-17 | 2014-07-09 | 京东方科技集团股份有限公司 | Light guide plate, backlight source module and display device |
| CN105334662A (en) * | 2015-11-16 | 2016-02-17 | 合一智能科技（深圳）有限公司 | Side light type backlight module |
-
2005
- 2005-02-02 CN CN 200520001873 patent/CN2771894Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103913797A (en) * | 2014-03-17 | 2014-07-09 | 京东方科技集团股份有限公司 | Light guide plate, backlight source module and display device |
| CN105334662A (en) * | 2015-11-16 | 2016-02-17 | 合一智能科技（深圳）有限公司 | Side light type backlight module |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |