CN201348663Y - Light guide plate - Google Patents
Light guide plate Download PDFInfo
- Publication number
- CN201348663Y CN201348663Y CNU2008202353101U CN200820235310U CN201348663Y CN 201348663 Y CN201348663 Y CN 201348663Y CN U2008202353101 U CNU2008202353101 U CN U2008202353101U CN 200820235310 U CN200820235310 U CN 200820235310U CN 201348663 Y CN201348663 Y CN 201348663Y
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- CN
- China
- Prior art keywords
- light guide
- guide plate
- substrate
- light
- pasted
- 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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- Light Guides In General And Applications Therefor (AREA)
- Optical Elements Other Than Lenses (AREA)
Abstract
A light guide plate belongs to the backlight technology field of color liquid crystal displays, in the prior art, the reflecting surfaces of light guide plates adopt silk-screen printing dot matrix or grid, diffusing surfaces adopt the method of pasting diffusion films to enhance the quality of the light guide plates, moreover, due to the large layer number of pasted films, the light wastage is great, and the diffusion of silk screen printing ink is easy to occur and results in the phenomena of blind spots and uneven color strength, which leads to a serious impact on the uniformity of light reflection and image clarity. The light guide plate comprises a base plate, wherein a V-shaped array is designed on a diffusing surface, a round convex dot matrix which is plated with aluminum powder is designed on a reflecting surface, the lateral surface of the base plate is of rectangle shape, a V-shaped base film is pasted on the base plate at which the V-shaped array is arranged, and a diffusing film is pasted on the V-shaped base film. The light guide plate is used as a key component in color liquid crystal display backlight for changing a line source, which is provided by a cold cathode fluorescent tube, into an area source, and the light guide plate is also able to improve the uniformity of light reflection and the image clarity.
Description
Technical field
The utility model relates to a kind of light guide plate of using in the background light source of colour liquid crystal display device that is applicable to.
Background technology
Light guide plate is the critical component in the colour liquid crystal display device background light source, and it mainly acts on is that line source with cold utmost point fluorescent tube provides converts area source to, and the quality of light guide plate quality directly influences image quality.In order to improve reflectivity, improve the light diffusion uniformity, existing light guide plate adopts serigraphy dot matrix or grid at reflecting surface, and diffusingsurface adopts the mode of pasting diffusion barrier to improve the quality of light guide plate.The light guide plate of using in the available liquid crystal display comprises pmma substrate, and substrate two surfaces are minute surface, is pasted with two-layer diffusion barrier and two-layer V-type groove film at the diffusingsurface of substrate; Design has precise silk screen printed layers and one deck reflectance coating on the reflecting surface surface of substrate.Its weak point is because the pad pasting number of plies is many, and big to the loss of light, ink for screen printing is prone to ink diffusion and causes blind spot and the uneven phenomenon of shade, has had a strong impact on the homogeneity of light reflection, influences the sharpness of picture.
The utility model content
Technical problem to be solved in the utility model is, overcome that above-mentioned prior art exists because the precise silk screen printing easily produces blind spot and the uneven defective of shade, a kind of light guide plate is provided, and this light guide plate can improve light reflecting brightness and reflection homogeneity effectively.
The technical scheme that its technical matters that solves the utility model adopts is: a kind of light guide plate, comprise substrate, design has the V-arrangement battle array on the diffusingsurface surface of substrate, design has the boss dot matrix on the reflecting surface surface of substrate, be coated with aluminium powder on boss dot matrix surface, substrate side surfaces is rectangle, and it is characterized in that: have in substrate design on the diffusingsurface surface of V-arrangement battle array and post the V-arrangement counterdie, post diffusion barrier on the V-arrangement counterdie.
The beneficial effects of the utility model are: owing to posting the V-arrangement counterdie on the diffusingsurface surface that the V-arrangement battle array is arranged in the substrate design, on the V-arrangement counterdie, post diffusion barrier, and substrate adopts ultra tiny job operation single injection-molded, saved one deck precise silk screen printed layers and one deck diffusion layer, thereby improved effectively because the precise silk screen printing easily produces blind spot and the uneven defective of shade; The boss lattice energy that the surface of designing on the reflecting surface surface is coated with aluminium powder improves the reflecting brightness of light guide plate effectively, thereby has improved the sharpness of LCD.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Among the figure, 1, diffusion barrier; 2, V-arrangement counterdie; 3, V-arrangement battle array; 4, substrate; 5, boss dot matrix.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Referring to Fig. 1, the described a kind of light guide plate of present embodiment, comprise substrate 4, design has V-arrangement battle array 3 on the diffusingsurface surface of substrate 4, design has boss dot matrix 5 on the reflecting surface surface of substrate 4, is coated with aluminium powder on boss dot matrix 5 surfaces, and substrate 4 sides are rectangle, it is characterized in that: design on the diffusingsurface surface that V-arrangement battle array 3 is arranged at substrate 4 and post V-arrangement counterdie 2, on V-arrangement counterdie 2, post diffusion barrier 1.
Certainly, the above only is a preferred embodiment of the present utility model, so all equivalences of doing according to the described structure of the utility model patent claim, feature and principle change or modify, all belongs within the protection domain of the utility model patented claim.
Claims (1)
1, a kind of light guide plate, comprise substrate (4), design has V-arrangement battle array (3) on the diffusingsurface surface of substrate (4), design has boss dot matrix (5) on the reflecting surface surface of substrate (4), be coated with aluminium powder on boss dot matrix (5) surface, substrate (4) side is rectangle, and it is characterized in that: have in substrate (4) design on the diffusingsurface surface of V-arrangement battle array (3) and post V-arrangement counterdie (2), post diffusion barrier (1) on V-arrangement counterdie (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202353101U CN201348663Y (en) | 2008-12-19 | 2008-12-19 | Light guide plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202353101U CN201348663Y (en) | 2008-12-19 | 2008-12-19 | Light guide plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201348663Y true CN201348663Y (en) | 2009-11-18 |
Family
ID=41368131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202353101U Expired - Fee Related CN201348663Y (en) | 2008-12-19 | 2008-12-19 | Light guide plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201348663Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102463735A (en) * | 2010-11-15 | 2012-05-23 | 福建捷联电子有限公司 | Printing plate for printing optical image on light guide plate and printing correction method thereof |
| CN103562617A (en) * | 2011-06-03 | 2014-02-05 | 住友化学株式会社 | Light guide plate equipped with protective film |
-
2008
- 2008-12-19 CN CNU2008202353101U patent/CN201348663Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102463735A (en) * | 2010-11-15 | 2012-05-23 | 福建捷联电子有限公司 | Printing plate for printing optical image on light guide plate and printing correction method thereof |
| CN103562617A (en) * | 2011-06-03 | 2014-02-05 | 住友化学株式会社 | Light guide plate equipped with protective film |
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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: 20091118 Termination date: 20171219 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |