CN100406990C - Light guide plate with analogous triangular prism structure - Google Patents
Light guide plate with analogous triangular prism structure Download PDFInfo
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- CN100406990C CN100406990C CN2004100704129A CN200410070412A CN100406990C CN 100406990 C CN100406990 C CN 100406990C CN 2004100704129 A CN2004100704129 A CN 2004100704129A CN 200410070412 A CN200410070412 A CN 200410070412A CN 100406990 C CN100406990 C CN 100406990C
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- guide plate
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Abstract
The present invention relates to a light guide plate with analogous triangular prism structure, which uses a common light source or a parallel light source and projects the light sources into the light guide plate form an incident surface. Emergent light beams at each emergent position are all emitted in the modes of total reflection and refraction which are designed according to a special included angle of the light guide plate with analogous triangular prism structure, the distance between central lines of emergent light equals to or less than that of adjacent openings of an LCD panel, and light rays at the bottom surface of the light guide plate, which are vertically led out from a plurality of specific positions, is opened through the LED panel. The common light source guides the light rays toward an analogous triangular prism, and the light rays are emitted toward the openings of the LED panel through the analogous triangular prism. Most of light energy is totally reflected repeatedly in the light guide plate of the present invention before captured and emitted by guiding. Therefore, the light energy can be effectively used, the brightness can be increased, the picture quality of an LCD is improved, the power consumption can be reduced, and the usage time of batteries is prolonged.
Description
Technical field
The light guide plate of tool analogous triangular prism structure of the present invention is about for overcoming known backlight module, a large amount of luminous energies are for reaching even bright dipping, and the employing prismatic lens, diffuser plate, the diaphragm of tool optical effects such as reflecting plate, but the luminous energy major part is lost in the process of repeatedly refraction and reflection again, and the problem that is wasted in the lighttight part of the panel of LCD because of shining is arranged, and a kind of non-comprehensive and plural ad-hoc location bright dipping of creating through selecting, and the light beam of bright dipping also can be formed at concentrated orientation angles by cooperating through the plural directional light of controlling, the backlight module that penetrates to the opening of the panel of LCD, and the present invention is directed to the simplification module for integrating the complicated structure of known multiple-piece backlight module with the present invention.
Background technology
Known light guide plate is mostly to obtain the technological thought of the even bright dipping of exiting surface, as United States Patent (USP) notification number 5917664, though also formed by the structure of tool prism array, yet its purpose is but when trying to achieve the conversion visual angle, brightness can not produce unexpected variation in some angles, and is different with technological thought of the present invention.
" light guide plate of many focuses of tool reflective device " patent of Taiwan patent announcement numbers 463957, shown in Fig. 9-1,9-2, face-off face at the light guide plate exiting surface forms most many focuses of tool reflective devices, in the middle of lying in, each pattern forms an arc surface, be the center with this arc surface again, form most annular arc surfaces from the inside to the outside, incident light reflex to the top bright dipping via the arc surface of each pattern on the light guide plate and on, to constitute a planar light source.This prior art is with the multidirectional reflection of the multifocal catoptron of tool, makes the illuminance distribution of flat light source, and is different with technological thought of the present invention.
United States Patent (USP) notification number 6356391, though also formed by the structure of tool prism array, yet its purpose for try to achieve bright dipping evenly; The light guide plate of technological thought tool analogous triangular prism structure of the present invention is different with known technological thought.
" flat light source " patent of Taiwan patent announcement numbers 538285, as Figure 10-1, shown in the 10-2, utilize concavees lens 11n or convex lens 11p, by the recessed or multidirectional refraction of convex lens, make near the exiting surface of the side plane of incidence have sufficient brightness, as Figure 11-1, Figure 11-2, Figure 12-1, shown in Figure 12-2, also other side outside the face-off face of light guide plate exiting surface and the plane of incidence, form recessed catoptron 12p or convex reflector 12n that different densities distributes, by the recessed or multidirectional reflection of convex reflector, and at the higher catoptron of peripheral configuration density, the peripheral brightness of not enough easily in the past light guide plate be can improve, the Luminance Distribution and the homogenization of radiation angle of flat light source made.This prior art is Luminance Distribution and the homogenization of radiation angle that makes flat light source with recessed or the multidirectional reflection of convex reflector, and is different with technological thought of the present invention.
" light source partial penetration formula backlight LCD " patent of Taiwan patent announcement numbers 560621, as shown in figure 13, be to form reflection horizon 51 in LCD f bottom side with plural optical channel 52, and between LCD f and light guide plate h, establish a micromirror blooming g, this blooming g is in respect to 52 of optical channels light harvesting zone 61 being set, the self-control light of light guide plate h output is through the light harvesting zone 61 of micromirror blooming g, optically focused is formed the self-control light L5 of more luminous energy, the optical channel 52 of penetrate through reflective layer 51 then, inject LCD f, the whole light emitting efficiency of LCD f, combine the natural light L4 of 51 high reflection and the self-control light that strengthens through micromirror blooming g optically focused, strengthen whole LCD f light emitting efficiency through the reflection horizon; Light harvesting zone 61 spotlight effects are strong more, the self-control light L5 of optical channel 52 that passes reflection horizon 51 is just strong more, and can further make optical channel 52 that 51 shared area ratios are dwindled in the reflection horizon, the area ratio of reflection usefulness then improves, available reflection natural light L4 is just big more, a design can be strengthened the light emitting efficiency of LCD f whereby, and can reduce the contrast with extraneous natural light L4.This prior art is that the micromirror blooming g with the reflection horizon 51 of tool optical channel 52 and tool light harvesting zone 61 is a feature, has the effect that self-control light L5 is penetrated to ad-hoc location, yet have self-control light L5 is independent of light guide plate h to the micromirror blooming g system that ad-hoc location penetrates effect, construct different with the present invention, it is different technological thoughts, and this patent is not done the exposure of structure and feature thereof, parameter to micromirror blooming g and light harvesting zone 61, and the present invention then does exposure to structure and feature thereof, parameter.
Summary of the invention
The objective of the invention is for solving known backlight module, a large amount of luminous energies are for reaching even bright dipping, and the employing prismatic lens, diffuser plate, the diaphragm of tool optical effects such as reflecting plate, but the luminous energy major part is lost in the process of repeatedly refraction and reflection again, and the problem that is wasted in the lighttight part of the panel of LCD because of shining is arranged, and create non-comprehensive and plural ad-hoc location bright dipping through selecting, and the light beam of bright dipping also can be formed at concentrated orientation angles by cooperating through the plural directional light of controlling, the backlight module that penetrates to the opening of the panel of LCD, the present invention can be the prismatic lens that omits in the known backlight module, diffuser plate, reflecting plates etc., it is many that its cost is reduced relatively.
The object of the present invention is achieved like this:
A kind of light guide plate of tool analogous triangular prism structure is characterized in that including: a light guide plate, light guide plate side are incidence surface, can make light import backlight module, and another side is an exiting surface, is a plurality of class Tps, and its bottom is a reflecting surface; The prism bottom surface of class Tp and prism side angle are greater than 90 °, and making this prism is obtuse triangle, and photoconduction is to the particular orientation bright dipping after the total reflection of class Tp fully reflecting surface; Light supply apparatus is with general non-may command scattering light source or the plural directional light bright dipping through controlling, and each light can be incident upon in the light guide plate by the light natural scattering or by the light supply apparatus adjustment, light via light guide plate with photoconduction to the class Tp, light imports the specific orientation of pointing to by the total reflection of class Tp, and its light beam that sees through the ejaculation of class Tp can be treated as this ad-hoc location of self-conductance tabula rasa and penetrate.
The light guide plate of tool analogous triangular prism structure, bright dipping Noodles Tp is the equidistant pyrometric cone of run-in index on its light guide plate, it is equidistantly arranged in order to easy to process for long row pyrometric cone; Bright dipping Noodles Tp is the array type pyrometric cone on the light guide plate, and processing mode is that array type is arranged freestanding pyrometric cone, and each pyrometric cone width is all aimed at the openings of sizes of the panel of LCD.Light guide plate and the class Tp formula that can be formed in one sees through processing mode and handles to reduce material cost.Light guide plate and class Tp can be divided into processing light guide plate part and class Tp two parts for paste paying formulas, and the class Tp are partly pasted pay on the light guide plate.
The light guide plate of tool analogous triangular prism structure, its backlight module are the single structure formula backlight module that known multiple-piece backlight module integrates.
The light guide plate of tool analogous triangular prism structure, the width on base is equal to or less than the extended distance of the panel of LCD on the class Tp of its light guide plate exiting surface, and aims at the panel aperture position of LCD.
The light guide plate of described tool analogous triangular prism structure, its light guide plate bottom reflection face is a shiny surface, making its incident light light source is total reflection, and the light reflection is reduced light loss.
The light guide plate of described tool analogous triangular prism structure, its incident light light source are general light source or the plural directional light through controlling, and it all can reflect via the total reflection in the analogous triangular prism again and penetrate the panel opening part of aiming at LCD.
The light guide plate of described tool analogous triangular prism structure, the angle angle of its class Tp bottom surface and prism side necessarily makes the class Tp present obtuse triangle greater than 90 degree, produces the panel opening part that LCD is penetrated in total reflection in the time of just can making light import the class Tp.But the θ 1 and the θ 2 of the light guide plate of tool analogous triangular prism structure are the machining control part, make the panel opening part of its bright dipping position alignment LCD.When panel of LCD is that size is bigger, when single light source can't be dispersed on the panel of LCD comprehensively, its light source can be arranged at the light guide plate both sides each one, pass on not enough problem to prevent light source.
The light guide plate of described tool analogous triangular prism structure is characterized in that being provided with one deck refractive index packed layer close with the class Tp between class Tp and LCD reflection horizon.
The light guide plate of described tool analogous triangular prism structure is characterized in that doing on a triangle angle face or the general closed planar at the incidence surface opposite side of light guide plate and sticks on reflecting plate, can make incident light promptly
Reach and reduce scattering and disappearing of light.
The light guide plate of described tool analogous triangular prism structure is characterized in that the opposite side of light guide plate exiting surface can be installed a reflecting plate, to reduce the light loss of light because of refraction and reflection.
The light guide plate of described tool analogous triangular prism structure is characterized in that light guide plate can make a pinacoidal class triangular prism plate, its light guide plate exiting surface and reflecting surface---is the opposite side of exiting surface, all is provided with analogous triangular prism.
Advantage of the present invention is: utilize research of the present invention to omit the diaphragm of tool optical effects such as the interior prismatic lens of known backlight module, diffuser plate, reflecting plate, it is many that its manufacturing cost is reduced relatively, and save the temporal summation of known making multiple-piece combination.The projection that the light guide plate of tool analogous triangular prism structure sees through the plural directional light of general light source or process control imports light in the light guide plate of the present invention, again via the obtuse triangle prism structure of particular design of the present invention, the specific optical range that goes out is caught and guided to the principle of utilizing total reflection with general light source or through the plural directional light of control, for example the bright dipping correcting of exiting surface is intended like the light to the ejaculation of liquid crystal panel opening part, because it is non-comprehensively from the ad-hoc location bright dipping, and the light beam of bright dipping also can form by cooperating through the plural directional light of controlling and concentrate on special angle, opening to the panel of LCD penetrates, therefore luminous energy is effectively used, brightness can thereby promote, improve the LCD picture quality, and power consumption can thereby reduce, prolong battery service time, and by the design of the present invention with backlight module integration, it is designed to integrate shaped type or pastes the backlight module of paying two-piece type, make backlight module material and the cost of process time with effective control.
Description of drawings
Fig. 1 is the light guide plate organigram of tool analogous triangular prism structure of the present invention.
Fig. 2 is the light guide plate illustrative view of tool analogous triangular prism structure of the present invention.
Fig. 3 is the various incident lights of light guide plate of the tool analogous triangular prism structure of the present invention synoptic diagram of advancing.
Fig. 4 is the equidistant triangle diagram cone of light guide plate run-in index of tool analogous triangular prism structure of the present invention.
Fig. 5 is the light guide plate array type triangle diagram cone of tool analogous triangular prism structure of the present invention.
Fig. 6-1 is the light guide plate one-piece construction synoptic diagram of tool analogous triangular prism structure of the present invention.
Fig. 6-2 is the light guide plate triangle reflection board structure synoptic diagram of tool analogous triangular prism structure of the present invention.
Fig. 7 is the two light source synoptic diagram of the light guide plate large scale liquid crystal panel of tool analogous triangular prism structure of the present invention.
Fig. 8-1 is the light guide plate pinacoidal class triangular prism synoptic diagram of tool analogous triangular prism structure of the present invention.
Fig. 8-2 is the enforcement synoptic diagram of the light guide plate pinacoidal class triangular prism triangle reflecting plate light source direct of travel of tool analogous triangular prism structure of the present invention.
Fig. 9-1,9-2 are the representative graph of " light guide plate of many focuses of tool reflective device " patent of prior art Taiwan patent announcement numbers 463957.
Figure 10-1,10-2 are one of the representative graph of " flat light source " patent of prior art Taiwan patent announcement numbers 538285.
Figure 11-1,11-2 be prior art Taiwan patent announcement numbers 538285 " flat light source " patent representative graph two.
Figure 12-1,12-2 be prior art Taiwan patent announcement numbers 538285 " flat light source " patent representative graph three.
Figure 13 is the representative graph of " light source partial penetration formula backlight LCD " patent of prior art Taiwan patent announcement numbers 560621.
The element numbers explanation
10 light emitting sources
11 light guide plate
12 incident lights
13 class Tps
14 prism bottom surfaces
15 prism bright dipping inclined-planes
16 total reflections for the first time
17 prism sides
18 total reflections for the second time
19 go out anaclasis
The panel opening of 20 LCD
21 packed layers
The θ incident angle of light
θ 1 prism bottom surface and prism bright dipping inclined-plane angle
The exterior angle of θ 2 prism bottom surfaces and prism sides angle
The material refractive index of n1 light guide plate and class Tp
The material refractive index of n2 film or packed layer
Embodiment
The present invention is a kind of light guide plate of tool analogous triangular prism structure, as shown in Figure 1, the arrangement mode of class Tp 13 is the obtuse triangle of marshalling, wherein D is the leg-of-mutton prism of class bottom surface 14 width, its class Tp bottom width just corresponds to opening 20 distances of the panel of LCD, the light that its light is penetrated by analogous triangular prism 13 inner total reflections just corresponds to the opening 20 of the panel of LCD, luminous energy is effectively used, brightness can thereby promote, and improves the LCD picture quality.
Cooperate again shown in Fig. 2 and Fig. 6-1, it injects wherein a kind of for multiple optic angle degree, wherein light is injected light guide plate 11 by light emitting source 10, inject class Tp 13 (the material refractive index of light guide plate 11 and class Tp 13 is n1) by the incident light 12 that produces an angle θ in the light guide plate 11 by class Tp 13 prism bottom surfaces 14 again, its incident light 12 is via total reflection 16 for the first time in the prism bright dipping inclined-plane 15 of class Tp 13 (prism bottom surface 14 is θ 1 with prism bright dipping inclined-plane 15 angles), its total reflection 16 for the first time produces total reflection 18 for the second time (prism bottom surface 14 is θ 2 with the exterior angle of prism side 17 angles) in the prism sides 17 of class Tp 13, doing one by class Tp 13 prism bright dipping inclined-planes 15 more at last goes out anaclasis 19 and penetrates that (packed layer can be film to packed layer 21, filling liquid, air), the anaclasis 19 that goes out that it is last is the near normal bright dipping of aiming at the opening 20 of the panel of LCD behind packed layer 21, wherein n2 (the material refractive index of packed layer 21 is n2) material refractive index for the close packed layer of class Tp 13 material refractive index ns 1, and the θ 1 in the class Tp 13 is processing may command angle with θ 2, light guide plate 11 designs on a triangle angle face or the general closed planar at the opposite side of light inlet side and sticks on reflecting plate shown in Fig. 6-2, and this angle face can prevent light in light guide plate 11 the parallel craspedodrome light that conducts to opposite side (
) penetrate, so craspedodrome light therefore the reflecting surface at angle carry out total reflection and photoconduction is returned light guide plate 11 can reach and reduce scattering and disappearing of light, wherein if can install a reflecting plate, to reduce atomic little light lost because of refraction at the opposite side of light guide plate 11 exiting surfaces; Wherein be depicted as light is injected class Tp 13 by various different incidence angles synoptic diagram as figure three.
The part of embodiment in the light guide plate that its following table one is key diagram 1 a tool analogous triangular prism structure, the indivedual concrete numerical value that what follows embodiment proposed is part embodiment of the present invention only, is not therefore to arrest limit claim of the present invention.
As Fig. 4 and shown in Figure 5, class Tp 13 can be made the equidistant pyrometric cone of run-in index, it is equidistantly arranged in order to easy to process for long row pyrometric cone, and class Tp 13 can be made the array type pyrometric cone, processing mode is that array type is arranged freestanding pyrometric cone, each pyrometric cone width is all aimed at opening 20 sizes of the panel of LCD, and this backlight module is the design of integration, it is designed to integrate shaped type or pastes the backlight module of paying two-piece type, make backlight module material and the cost of process time with effective control; Shown in Fig. 8-1, this light guide plate 11 can be made a two-sided analogous triangular prism 13 that all is provided with, it can make light guide plate 11 of the present invention present the mode of two-sided bright dipping, if add that LCD screen just can have the function of double screen, wherein Fig. 8-2 is the embodiment of the triangle reflecting plate light direct of travel of pinacoidal class Tp; As shown in Figure 7, when the panel of its LCD is large-size, because of single light source can't be dispersed on the panel of LCD comprehensively, so it can utilize two light supply apparatuses, its light source can be arranged at light guide plate 11 both sides each one, and class Tp 13 is designed to the guide center of the light guide plate 11 width arrangement design symmetrical towards both sides, passes on not enough problem to prevent light source.
The light guide plate of tool analogous triangular prism structure of the present invention both be not seen in publication before applying for a patent, also be not disclosed in application before, conform with the important document of novelty; Non-comprehensive ground of the present invention and the plural ad-hoc location bright dipping through selecting certainly, and the light beam of bright dipping also can be formed at concentrated orientation angles by cooperating through the plural directional light of controlling, opening to the panel of LCD penetrates, because light is being captured, before guiding is penetrated, it all is to follow total reflection principle to propagate in light guide plate inside, therefore significantly lowering luminous energy loses in the process of repeatedly refraction and reflection again, therefore luminous energy is effectively used, brightness can thereby promote, improve the LCD picture quality, or/and power consumption can thereby reduce, prolong battery service time, improve known backlight module, the problem that a large amount of luminous energies are wasted, because light is being captured, before guiding is penetrated, it all is to follow total reflection principle to propagate in light guide plate inside, therefore significantly lowering luminous energy loses in the process of repeatedly refraction and reflection again, and design with backlight module integration, it is designed to integrate shaped type or pastes the backlight module of paying two-piece type, make backlight module material and the cost of process time with effective control, therefore the important document that conforms with practicality and progressive, the whence proposes patented claim in accordance with the law, earnestly ask and give examination, and the gift quasi patent, the true feeling moral is just.
Only the above is preferred embodiment of the present invention only, is not therefore to arrest limit claim of the present invention, uses the equivalence of constructing described in the claim of the present invention to change such as, all should be contained in the claim of the present invention.
Claims (15)
1. the light guide plate of a tool analogous triangular prism structure is characterized in that including:
One light guide plate, light guide plate side are incidence surface, can make light import backlight module, and another side is an exiting surface, and described exiting surface is that plural class Tp constitutes, and wherein any class Tp comprises a bright dipping inclined-plane, and its bottom is a reflecting surface; And described plural class Tp, comprise a prism bottom surface and a prism side, and the angle of this prism bottom surface and prism side is greater than 90 °, making described class Tp is obtuse triangle, and after the total reflection of described class Tp fully reflecting surface and the light that penetrates just can correspond to the opening of the panel of LCD;
Light supply apparatus is with general non-may command scattering light source or the plural directional light bright dipping through controlling, and each light can be incident upon in the described light guide plate by the light natural scattering or by the light supply apparatus adjustment, light via described light guide plate with photoconduction to described class Tp, light is imported to point in the described bright dipping inclined-plane by described class Tp and carries out the total reflection first time, and produce total reflection for the second time in described class Tp prism sides by the described total reflection first time, do one by the bright dipping inclined-plane more at last and go out anaclasis and penetrate; And making its light beam that sees through described class Tp ejaculation can treat as the self-conductance tabula rasa penetrates.
2. the light guide plate of tool analogous triangular prism structure according to claim 1 is characterized in that bright dipping Noodles Tp is the equidistant pyrometric cone of run-in index on the light guide plate, and it is equidistantly arranged for long row pyrometric cone.
3. the light guide plate of tool analogous triangular prism structure according to claim 1, it is characterized in that bright dipping Noodles Tp is the array type pyrometric cone on the light guide plate, processing mode is that array type is arranged freestanding pyrometric cone, and each pyrometric cone width is all aimed at the openings of sizes of the panel of LCD.
4. the light guide plate of tool analogous triangular prism structure according to claim 1 is characterized in that light guide plate and the class Tp formula that is formed in one, to reduce material cost.
5. the light guide plate of tool analogous triangular prism structure according to claim 1 is characterized in that light guide plate and class Tp for pasting the formula of paying, can be divided into processing light guide plate and class Tp two parts, and the subsides of class Tp is paid on the light guide plate.
6. the light guide plate of tool analogous triangular prism structure according to claim 1 is characterized in that backlight module is the single structure formula backlight module that known multiple-piece backlight module integrates.
7. the light guide plate of tool analogous triangular prism structure according to claim 1, it is characterized in that the width on base on the class Tp of light guide plate exiting surface is equal to or less than the extended distance of the panel of LCD, and aim at the panel aperture position of LCD.
8. the light guide plate of tool analogous triangular prism structure according to claim 1 is characterized in that light guide plate bottom reflection face is a shiny surface, and making its incident light light source is total reflection.
9. the light guide plate of tool analogous triangular prism structure according to claim 1, it is characterized in that the incident light light source is general light source or the plural directional light through controlling, it all can reflect via the total reflection in the analogous triangular prism again and penetrate the panel opening part of aiming at LCD.
10. the light guide plate of tool analogous triangular prism structure according to claim 9, it is characterized in that prism is provided with a bottom surface and a bright dipping inclined-plane, the angle on this bottom surface and bright dipping inclined-plane, but with the exterior angle of this prism bottom surface and prism sides angle be machining control partly, make the panel opening part of its bright dipping position alignment LCD.
11. the light guide plate of tool analogous triangular prism structure according to claim 10 is characterized in that panel of LCD is size when big, single light source can't be dispersed on the panel of LCD comprehensively, its light source can be arranged at the light guide plate both sides each one.
12. the light guide plate of tool analogous triangular prism structure according to claim 1 is characterized in that being provided with one deck refractive index packed layer close with the class Tp between class Tp and LCD reflection horizon.
13. the light guide plate of tool analogous triangular prism structure according to claim 1 is characterized in that doing on a triangle angle face or the general closed planar at the incidence surface opposite side of light guide plate and sticks on reflecting plate.
14. the light guide plate of tool analogous triangular prism structure according to claim 1 is characterized in that the opposite side of light guide plate exiting surface can be installed a reflecting plate, to reduce the light loss of light because of refraction and reflection.
15. the light guide plate of tool analogous triangular prism structure according to claim 1 is characterized in that light guide plate can make a pinacoidal class triangular prism plate,----------is the opposite side of exiting surface, all is provided with analogous triangular prism for its light guide plate exiting surface and reflecting surface.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2004100704129A CN100406990C (en) | 2004-08-02 | 2004-08-02 | Light guide plate with analogous triangular prism structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2004100704129A CN100406990C (en) | 2004-08-02 | 2004-08-02 | Light guide plate with analogous triangular prism structure |
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| CN1734324A CN1734324A (en) | 2006-02-15 |
| CN100406990C true CN100406990C (en) | 2008-07-30 |
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| CN2004100704129A Expired - Fee Related CN100406990C (en) | 2004-08-02 | 2004-08-02 | Light guide plate with analogous triangular prism structure |
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| CN (1) | CN100406990C (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4813982B2 (en) * | 2006-06-16 | 2011-11-09 | 富士フイルム株式会社 | Light guide plate assembly and planar illumination device using the same |
| KR101232059B1 (en) * | 2006-07-27 | 2013-02-12 | 삼성디스플레이 주식회사 | Dual prism sheet and backlight assembly having the same |
| CN101740652B (en) * | 2008-11-24 | 2012-02-15 | 财团法人工业技术研究院 | Solar light-collecting module |
| CN105353444A (en) * | 2015-11-13 | 2016-02-24 | 重庆鑫翎创福光电科技股份有限公司 | Printing-free light guide plate structure |
| CN105588042A (en) * | 2016-02-18 | 2016-05-18 | 南京神彩光电科技有限公司 | High-brightness parallax illumination device |
| CN105891940A (en) * | 2016-06-21 | 2016-08-24 | 京东方科技集团股份有限公司 | Light guide plate, backlight source module and display device |
| CN108594354B (en) | 2018-04-27 | 2022-08-09 | 京东方科技集团股份有限公司 | Optical module and display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5797668A (en) * | 1996-04-04 | 1998-08-25 | Dai Nippon Printing Co., Ltd. | Surface illumination device suitable for a backlit display |
| US6222689B1 (en) * | 1997-03-11 | 2001-04-24 | Enplas Corporation | Surface light source device and asymmetrical prism sheet |
| CN1406344A (en) * | 2000-02-28 | 2003-03-26 | 欧姆龙株式会社 | Surface light source, method for manufacturing the same and apparatus using it |
| JP2004069879A (en) * | 2002-08-05 | 2004-03-04 | Hitachi Ltd | Liquid crystal display device |
| CN1504776A (en) * | 2002-12-05 | 2004-06-16 | 鸿富锦精密工业（深圳）有限公司 | Light conducting element |
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2004
- 2004-08-02 CN CN2004100704129A patent/CN100406990C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5797668A (en) * | 1996-04-04 | 1998-08-25 | Dai Nippon Printing Co., Ltd. | Surface illumination device suitable for a backlit display |
| US6222689B1 (en) * | 1997-03-11 | 2001-04-24 | Enplas Corporation | Surface light source device and asymmetrical prism sheet |
| CN1406344A (en) * | 2000-02-28 | 2003-03-26 | 欧姆龙株式会社 | Surface light source, method for manufacturing the same and apparatus using it |
| JP2004069879A (en) * | 2002-08-05 | 2004-03-04 | Hitachi Ltd | Liquid crystal display device |
| CN1504776A (en) * | 2002-12-05 | 2004-06-16 | 鸿富锦精密工业（深圳）有限公司 | Light conducting element |
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| Publication number | Publication date |
|---|---|
| CN1734324A (en) | 2006-02-15 |
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