CN201138380Y - Light conducting plate - Google Patents
Light conducting plate Download PDFInfo
- Publication number
- CN201138380Y CN201138380Y CNU2008200544458U CN200820054445U CN201138380Y CN 201138380 Y CN201138380 Y CN 201138380Y CN U2008200544458 U CNU2008200544458 U CN U2008200544458U CN 200820054445 U CN200820054445 U CN 200820054445U CN 201138380 Y CN201138380 Y CN 201138380Y
- Authority
- CN
- China
- Prior art keywords
- guide plate
- prism
- light guide
- light
- utility
- 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 relates to a light guide plate which includes a prism-shaped light structure; the prism-shaped light structure consists of a plurality of isosceles triangular prisms; the apex angle of each prism is between 30 degrees and 60 degrees, and the depth is 0.1mm. The light guide plate reduces the dark areas between LEDs by changing the apex angle of prisms at the light positions, so that the light positions of a back light source evenly display, so as to improve the display effect of a back light module.
Description
Technical field
The utility model relates to a kind of light guide plate, particularly a kind of light guide plate of dwindling the dark space that forms between the backlight LED.
Background technology
The display effect of module backlight can influence the display effect of liquid crystal module usually.Wherein more general problem points is to advance light side (near LED one side) at visible area the light and shade of demonstration inequality is arranged, Fig. 1 is the structural representation of existing light guide plate, as shown in Figure 1, several light emitting diodes (LED) are positioned at a side of light guide plate, being positioned at light guide plate mutually advances the light side and has prism-like and advance photo structure, this prism-like is advanced photo structure and is made of a plurality of square prisms, and each prism vertex angle is 90 degree, is easy to generate very big dark space like this between the adjacent LED.For module backlight, the brightness of whole viewing area, uniformity coefficient mainly are by the optical design of light guide plate decision.The visible area of module backlight has the trend of increase on the present market, such trend can cause the dark space between the LED of light side into to be difficult to eliminate, can influence module backlight like this and then influence the display effect of liquid crystal module, and can't eliminate the generation of dark space according to existing light guide plate optical design.
The utility model content
Fundamental purpose of the present utility model is to provide a kind of light guide plate, dwindles the dark space that forms between the backlight LED by this light guide plate.
For achieving the above object, the utility model provides a kind of light guide plate, and it comprises that a prism-like advances photo structure, its substantive distinguishing features is, described prism-like is advanced photo structure and is made of a plurality of isosceles triangle prisms, and the drift angle angle of each prism is between 30～60 °, and the degree of depth of prism is 0.1MM.
Preferably, described light guide plate is formed by transparent optical classes and grades in school acryl.
Described prism-like is entered the photo structure opposite a plurality of light emitting diodes is set.
The utility model is owing to adopted above-mentioned technical scheme, make it compared with prior art, have following advantage and good effect: thus the utility model light guide plate is dwindled dark space between the LED by the drift angle angle of changing light place prism, make backlight enter the light place and show evenly, reach the display effect of improving module backlight.
Description of drawings
Fig. 1 is the structural representation of existing light guide plate;
Fig. 2 is the structural representation of light guide plate of the present utility model.
Embodiment
Below with reference to accompanying drawing light guide plate of the present utility model is described in further detail.
Fig. 2 is the structural representation of light guide plate of the present utility model, as shown in Figure 2, a light guide plate that forms by high transparent optical classes and grades in school acryl (PMMA), several light emitting diodes (LED) are positioned at a side of light guide plate, being positioned at light guide plate mutually advances the light side and has prism-like and advance photo structure, this prism-like is advanced photo structure and is made of a plurality of isosceles triangle prisms, during the light guide plate optical design, the drift angle angle of advancing light place prism according to 30～60 ° of designs, the degree of depth of prism is 0.1MM, and guarantees that prism facets is bright and clean.Like this when the lighting angle of LED with 100 °, when the prism facets of light guide plate goes into to inject light guide plate, refraction law according to light, refracted ray can reflect to both sides with bigger refraction angle, like this can be so that big angle of refracted ray deflection, just have more light between adjacent two LEDs and exist, light is many more, and the dark space dwindles.
Thereby the utility model light guide plate is dwindled dark space between the LED by the drift angle angle of changing light place prism, makes backlight enter the light place and shows evenly, reaches the display effect of improving module backlight.
That more than introduces only is based on preferred embodiment of the present utility model, can not limit scope of the present utility model with this.Any the utility model is done replacement, the combination, discrete of step well know in the art, and the utility model implementation step is done well know in the art being equal to change or replace and all do not exceed exposure of the present utility model and protection domain.
Claims (3)
1. light guide plate, it comprises that a prism-like advances photo structure, it is characterized in that described prism-like is advanced photo structure and is made of a plurality of isosceles triangle prisms, and the drift angle angle of each prism is between 30～60 °, and the degree of depth of prism is 0.1MM.
2. light guide plate as claimed in claim 1 is characterized in that, described light guide plate is formed by transparent optical classes and grades in school acryl.
3. light guide plate as claimed in claim 1 is characterized in that, described prism-like is entered the photo structure opposite a plurality of light emitting diodes are set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200544458U CN201138380Y (en) | 2008-01-04 | 2008-01-04 | Light conducting plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200544458U CN201138380Y (en) | 2008-01-04 | 2008-01-04 | Light conducting plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201138380Y true CN201138380Y (en) | 2008-10-22 |
Family
ID=40039064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200544458U Expired - Fee Related CN201138380Y (en) | 2008-01-04 | 2008-01-04 | Light conducting plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201138380Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102494272A (en) * | 2011-11-25 | 2012-06-13 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display |
| CN104100879A (en) * | 2013-04-08 | 2014-10-15 | Hb技术有限公司 | Back light unit |
-
2008
- 2008-01-04 CN CNU2008200544458U patent/CN201138380Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102494272A (en) * | 2011-11-25 | 2012-06-13 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display |
| CN104100879A (en) * | 2013-04-08 | 2014-10-15 | Hb技术有限公司 | Back light unit |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081022 Termination date: 20130104 |