CN1731242A - Light guide plate and manufacture method thereof - Google Patents
Light guide plate and manufacture method thereof Download PDFInfo
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- CN1731242A CN1731242A CN 200410051051 CN200410051051A CN1731242A CN 1731242 A CN1731242 A CN 1731242A CN 200410051051 CN200410051051 CN 200410051051 CN 200410051051 A CN200410051051 A CN 200410051051A CN 1731242 A CN1731242 A CN 1731242A
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- Prior art keywords
- guide plate
- light guide
- transparent
- light
- substrate
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Abstract
A kind of light guide plate that is used for liquid crystal indicator, this light guide plate comprise a substrate and a plurality of transparent grain, and wherein this substrate comprises a surface, and this surface has groove array, and these a plurality of transparent grains evenly are attached on this surface by a glue-line.This light guide plate light utilization efficiency height can effectively be controlled the beam projecting angle.The present invention provides a kind of this manufacturing method of light conducting board again.
Description
[technical field]
The invention relates to a kind of light guide plate and manufacture method thereof that is used for liquid crystal indicator.
[background technology]
In recent years, along with the colorize and the maximization of LCD, its application is more extensive, as mobile phone, notebook computer, various desktop computers etc.Because of LCD is a kind of passive device, itself can not be luminous, thereby need utilize the light source of a light-source system as LCD.As module backlight, wherein light guide plate is a critical elements in the module backlight, from the transmission direction that light source sends light beam, converts line source or pointolite to the area source outgoing in order to guiding.
At present, manufacturing method of light conducting board can be divided into etching method (Etching), laser processing method and LIGA (Lithography Electroforming Micro Molding, light lithography electroforming model method) etc., its purpose all is to make the emitting brightness homogenising of light guide plate.In the module backlight, utilize site or groove on the light guide plate to cooperate the shooting angle of controlling light with prismatic lens, site on the light guide plate or groove cooperate the brightness uniformity of controlling light with diffusion sheet.Because of it needs to match with two above elements, arranging effect is relatively poor, is easy to generate hot spot, stain and water wave phenomenon, and light is leaked outside between the two elements, and light utilization efficiency is relatively poor.
In the manufacture process of light guide plate, on light guiding board mould core, sandblast earlier usually, carry out the ejection formation of light guide plate again, conditional request is very high but it sandblasts, if will reach top condition, need produce many cover dies usually.Its complex procedures, cost is higher.
It is 02152108 Chinese patent application that a kind of prior art light guide plate sees also on June 16th, 2004 disclosed application number.As shown in Figure 1, this light guide plate 10 comprises a light-passing board 12, a plurality of organic filler spherolite 13 and binder 14, this light-passing board 12 comprises an exit facet 15, and these a plurality of organic filler spherolites 13 evenly are mixed in this binder 14, attach to the exit facet 15 of this light-passing board 12 by binder 14.
This organic filler spherolite 13 in this light guide plate 10, but scattering need not adopt diffusion sheet that the brightness of emergent ray is evenly distributed from the light of exit facet 15 outgoing.But, will exceed the border of this light guide plate 10 through the part light of these organic filler spherolite 13 outgoing at random, this part light can't be utilized, and light utilization efficiency is lower.The shooting angle of these organic filler spherolite 13 uncontrollable light can not be done collocation with the visual angle of liquid crystal panel from the light of these light guide plate 10 outgoing, and the additional prismatic lens of need is done collocation with the visual angle of liquid crystal panel after light is concentrated again.Increase the light transmission interface, reduced light utilization efficiency, and increased the production cost of module backlight.
[summary of the invention]
In order to overcome the low problem of prior art light guide plate light utilization efficiency, the invention provides a kind of light utilization efficiency height, can effectively control the light guide plate of beam projecting angle.
The present invention provides a kind of above-mentioned manufacturing method of light conducting board again.
The technical scheme that technical solution problem of the present invention is adopted is: a kind of light guide plate is provided, this light guide plate comprises a substrate and a plurality of transparent grain, this substrate comprises a surface, and this surface has groove array, and these a plurality of transparent grains evenly are attached on this surface by a glue-line.
The present invention solves the technical scheme that another technical matters adopts: a kind of method for manufacturing light guide plate is provided, it comprises the following steps: to provide a surface to have the substrate of groove array, have at this substrate on the surface of groove array and spray glue-line, this transparent grain evenly is sprayed on this glue-line, this curable adhesive layer is shaped.
Compare with prior art, the invention has the beneficial effects as follows: the shooting angle of the groove array may command light of light guide plate of the present invention, emergent ray is converged at a certain angle, can make full use of emergent ray, improve light utilization efficiency.The shooting angle of this groove array control light is done collocation with the visual angle of liquid crystal panel, makes the emergent ray need be through the converging of prismatic lens, can be directly and the visual angle of liquid crystal panel do collocation, play the effect of replacement prismatic lens.Use the module backlight of this light guide plate,, reduced the light transmission interface, improved the light interest rate because of it need not use prismatic lens.
[description of drawings]
Fig. 1 is a kind of schematic perspective view of prior art light guide plate.
Fig. 2 is the schematic perspective view of light guide plate first embodiment of the present invention.
Fig. 3 is the side view of light guide plate second embodiment of the present invention.
Fig. 4 be method for manufacturing light guide plate of the present invention the substrate synoptic diagram is provided.
Fig. 5 is the spraying glue-line synoptic diagram of method for manufacturing light guide plate of the present invention.
Fig. 6 is the sprinkling transparent grain synoptic diagram of method for manufacturing light guide plate of the present invention.
[embodiment]
Seeing also Fig. 2, is the schematic perspective view of light guide plate first embodiment of the present invention.This light guide plate 20 comprises a substrate 21 and a plurality of transparent grain 22.This substrate 21 is a rectangle transparency carrier, and this substrate 21 comprises a surface 24, and this surface 24 has groove array 25, and this groove array 25 is vee-cut arrays.The size of these a plurality of transparent grains 22 is 10
-9Rice.These a plurality of transparent grains 22 evenly are attached on this surface by a glue-line 23.This glue-line 23 is substratum transparents.
The vee-cut array shape of this groove array 25, the shooting angle of may command light converges at a certain angle with emergent ray, can make full use of emergent ray, improves light utilization efficiency.The shooting angle of this groove array 25 control light is done collocation with the visual angle of liquid crystal panel, makes the emergent ray need be through the converging of prismatic lens, can be directly and the visual angle of liquid crystal panel do collocation, play the effect of replacement prismatic lens.
The size of these a plurality of transparent grains 22 is 10
-9Rice can make the brightness uniformity of emergent ray reach best, plays the effect that replaces diffusion sheet.
Use the module backlight of this light guide plate 20,, reduced the light transmission interface, improved light utilization efficiency, reduced production cost because of it need not use diffusion sheet and prismatic lens.
Seeing also Fig. 3, is the side view of light guide plate second embodiment of the present invention.This light guide plate 30 is with the difference of the first embodiment light guide plate 20: this substrate 31 is a wedge shape transparency carrier, and the size of these a plurality of transparent grains 32 is 10
-6Rice.This light guide plate 30 can play the effect that replaces prismatic lens and diffusion sheet equally.
Seeing also Fig. 4 to Fig. 6, is method for manufacturing light guide plate synoptic diagram of the present invention, and it may further comprise the steps:
As shown in Figure 4, be method for manufacturing light guide plate of the present invention the substrate synoptic diagram is provided.The rectangle transparency carrier 41 that provides a surface 44 to have vee-cut array 45 carries out ultrasonic cleaning with this rectangle transparency carrier 41, and adopting ball-milling method manufactured size size is 10
-9The transparent grain 42 (as shown in Figure 6) of rice.
As shown in Figure 5, be the spraying glue-line synoptic diagram of method for manufacturing light guide plate of the present invention.Have at this rectangle transparency carrier 41 on the surface 44 of vee-cut array 45 and spray transparent colloid, on this surface 44, form a substratum transparent 43.
As shown in Figure 6, be the sprinkling transparent grain synoptic diagram of method for manufacturing light guide plate of the present invention.Should evenly be sprayed on this substratum transparent 43 with jet mode by a plurality of transparent grains 42.At last, this substratum transparent 43 by ultraviolet ray irradiation solidified forming, is generated light guide plate 40.
It is described that light guide plate of the present invention and manufacture method thereof are not limited to above-mentioned embodiment, also can be 10 as the size of this transparent grain
-6～10
-9Any number between the rice.The method of this making transparent grain also can adopt particle shape material methods such as vacuum condensation method, physical crushing method, vapour deposition process, hydrothermal synthesis method, and this curable adhesive layer also can adopt the method for being heating and curing.
Claims (9)
1. a light guide plate comprises a substrate and a plurality of transparent grain, and this substrate comprises a surface, it is characterized in that: this surface has groove array, and these a plurality of transparent grains evenly are attached on this surface by a glue-line.
2. light guide plate according to claim 1 is characterized in that: this groove array is the vee-cut array.
3. light guide plate according to claim 1 is characterized in that: the size of this transparent grain is 10
-6～10
-9Between the rice.
4. light guide plate according to claim 1 is characterized in that: this substrate is a rectangle or wedge shape transparency carrier.
5. light guide plate according to claim 1 is characterized in that: this glue-line is a substratum transparent.
6. method for manufacturing light guide plate, it comprises the following steps: to provide a surface to have the substrate of groove array; Have at this substrate on the surface of groove array and spray glue-line; This transparent grain evenly is sprayed on this glue-line; This curable adhesive layer is shaped.
7. method for manufacturing light guide plate according to claim 6 is characterized in that: these a plurality of transparent grains adopt ball-milling method, vacuum condensation method, physical crushing method, vapour deposition process or hydrothermal synthesis method to make.
8. method for manufacturing light guide plate according to claim 6 is characterized in that: this transparent grain evenly is sprayed on the glue-line with jet mode.
9. method for manufacturing light guide plate according to claim 6 is characterized in that: this curable adhesive layer adopts the ultraviolet ray irradiation solidification method or the method that is heating and curing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100510513A CN100389346C (en) | 2004-08-07 | 2004-08-07 | Light guiding plate and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100510513A CN100389346C (en) | 2004-08-07 | 2004-08-07 | Light guiding plate and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1731242A true CN1731242A (en) | 2006-02-08 |
| CN100389346C CN100389346C (en) | 2008-05-21 |
Family
ID=35963629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100510513A Expired - Fee Related CN100389346C (en) | 2004-08-07 | 2004-08-07 | Light guiding plate and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100389346C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101526640B (en) * | 2008-03-04 | 2012-10-31 | 中强光电股份有限公司 | Light guide plate and method for manufacturing same |
| CN104676375A (en) * | 2015-02-11 | 2015-06-03 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display device comprising same |
| CN105867027A (en) * | 2016-06-06 | 2016-08-17 | 京东方科技集团股份有限公司 | Backlight module, liquid crystal display module and liquid crystal display device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5054872B2 (en) * | 2001-02-22 | 2012-10-24 | 恵和株式会社 | Light diffusion sheet and backlight unit using the same |
| JP4351456B2 (en) * | 2002-03-26 | 2009-10-28 | 恵和株式会社 | Light diffusion sheet and backlight unit using the same |
| CN1291247C (en) * | 2002-11-28 | 2006-12-20 | 鸿富锦精密工业（深圳）有限公司 | Light conducting plate and its preparing process |
| CN2599602Y (en) * | 2003-02-18 | 2004-01-14 | 广东梅雁企业（集团）股份有限公司 | light guide plate |
-
2004
- 2004-08-07 CN CNB2004100510513A patent/CN100389346C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101526640B (en) * | 2008-03-04 | 2012-10-31 | 中强光电股份有限公司 | Light guide plate and method for manufacturing same |
| CN104676375A (en) * | 2015-02-11 | 2015-06-03 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display device comprising same |
| CN105867027A (en) * | 2016-06-06 | 2016-08-17 | 京东方科技集团股份有限公司 | Backlight module, liquid crystal display module and liquid crystal display device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100389346C (en) | 2008-05-21 |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080521 Termination date: 20160807 |
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| CF01 | Termination of patent right due to non-payment of annual fee |