CN2751325Y - Light guide plate for back lighting of liquid crystal display - Google Patents
Light guide plate for back lighting of liquid crystal display Download PDFInfo
- Publication number
- CN2751325Y CN2751325Y CN 200420078095 CN200420078095U CN2751325Y CN 2751325 Y CN2751325 Y CN 2751325Y CN 200420078095 CN200420078095 CN 200420078095 CN 200420078095 U CN200420078095 U CN 200420078095U CN 2751325 Y CN2751325 Y CN 2751325Y
- Authority
- CN
- China
- Prior art keywords
- guide plate
- light guide
- liquid crystal
- light
- crystal display
- 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 - Lifetime
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- Light Guides In General And Applications Therefor (AREA)
- Planar Illumination Modules (AREA)
Abstract
The utility model discloses a light guiding plate for the back lighting of a liquid crystal display. The homogeneity and brightness of light of the light guiding plate can be enhanced by adopting a structure that V-shaped slots are arranged on both sides of the light guiding plate, wherein the parallel or cross included angle of an upper and a lower V-shaped slots is not more than 10 DEG, and the definition of the liquid crystal display can be improved consequently. Color diodes can be widely used, and the light guiding plate can be widely used on liquid crystal displays which are arranged on televisions, computers, display screens of instruments, cell phones, electronic notebooks, etc.
Description
Invention field the utility model relates to a kind of light guide plate, relates in particular to a kind of light guide plate of LCD backlight illumination.
Technical background is in display device, and the function of light guide plate is to convert the lateral side wire light source that fluorescent tube provides to area source.In order to improve the leaded light amount of light guide plate, the light guide plate of using in the LCD backlight illumination adopts upper surface to be provided with the V groove usually, lower surface is provided with dot matrix or matrix, as application number is that 01120602.0 " manufacture method of light guide plate and the die thereof " application for a patent for invention and the patent No. are disclosed light guide plate in " light guide plate " patent of 03202966.7, their leaded light light path as shown in Figure 1, compare with before the single face dot matrix or the light guide plate of single face V groove, the leaded light amount has increased, but the reflected light of dot matrix or matrix is even inadequately, also has relaxation phenomenon.
The summary of the invention the purpose of this utility model provides a kind of light guide plate that improves the LCD backlight illumination of light reflection homogeneity and leaded light amount.
For realizing above purpose, the utility model adopts following technical scheme: the two-sided V of the being provided with groove of light guide plate.
V groove parallel or cross angle in top and bottom is not more than 10 °.
Adopt above technical scheme, not only improved the light guide plate optical uniformity, the leaded light amount also increases manyfold than the light guide plate in the technology formerly, thereby has improved the sharpness of LCD, reduces the requirement to the diode luminance brightness, can extensively adopt color diodes; This light guide plate can be widely used in TV, computer, instrument display screen, mobile phone, electronic memo etc. and be provided with on the LCD device, has vast market prospect.
Description of drawings now is further elaborated the utility model in conjunction with the accompanying drawings:
Fig. 1 is a prior art light guide plate leaded light light path synoptic diagram;
Fig. 2 is the utility model light guide plate leaded light light path synoptic diagram.
Specific embodiment as shown in the figure 2, the utility model light guide plate 1 two-sided V groove 11,12 that is provided with, the V-type angle of V groove 11,12 is generally 90 °, top and bottom V groove 11 and 12 is parallel to each other, perhaps intersect, its cross angle is not more than 10 °, when up and down the cross angle of V groove 11,12 is 6 °, lead light amount ratio formerly the light guide plate in the technology increase by ten times.The light L1 of light source 2 injects the face 11a of the top V groove 11 of light guide plate 1, and quilt cover 11a reflexes to reflector plate 3, reflexes to LCD 4 by reflector plate 3 again; The light L2 of light source 2 injects the face 12a of the following V groove 12 of light guide plate 1, and quilt cover 12a reflexes to LCD 4.According to the size difference of LCD 4, adjust the degree of depth and the width dimensions of V groove 11,12 on the light guide plate 1, just can reach the purpose of even reflection.
Claims (4)
1. the light guide plate of a LCD backlight illumination is characterized in that: the two-sided V of the being provided with groove of light guide plate.
2. the light guide plate of a kind of LCD backlight illumination according to claim 1, it is characterized in that: light guide plate top and bottom V groove is parallel.
3. the light guide plate of a kind of LCD backlight illumination according to claim 1 is characterized in that: light guide plate V face groove is up and down intersected, and cross angle is not more than 10 °.
4. according to the light guide plate of claim 1,3 described a kind of LCD backlight illuminations, it is characterized in that: light guide plate top and bottom V groove intersects, and the angle of the crossing is 6 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420078095 CN2751325Y (en) | 2004-07-24 | 2004-07-24 | Light guide plate for back lighting of liquid crystal display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420078095 CN2751325Y (en) | 2004-07-24 | 2004-07-24 | Light guide plate for back lighting of liquid crystal display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2751325Y true CN2751325Y (en) | 2006-01-11 |
Family
ID=35932501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420078095 Expired - Lifetime CN2751325Y (en) | 2004-07-24 | 2004-07-24 | Light guide plate for back lighting of liquid crystal display |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2751325Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101818883A (en) * | 2010-04-30 | 2010-09-01 | 深圳创维－Rgb电子有限公司 | Light guide plate used for LED module and manufacturing method thereof |
-
2004
- 2004-07-24 CN CN 200420078095 patent/CN2751325Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101818883A (en) * | 2010-04-30 | 2010-09-01 | 深圳创维－Rgb电子有限公司 | Light guide plate used for LED module and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20140724 Granted publication date: 20060111 |