CN1236348C - Back light module for liquid crystal display - Google Patents
Back light module for liquid crystal display Download PDFInfo
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- CN1236348C CN1236348C CN02132096.9A CN02132096A CN1236348C CN 1236348 C CN1236348 C CN 1236348C CN 02132096 A CN02132096 A CN 02132096A CN 1236348 C CN1236348 C CN 1236348C
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- guide plate
- light guide
- light
- liquid crystal
- crystal display
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Abstract
The present invention relates to a back light module for a liquid crystal display. The present invention comprises a light guide plate, a luminous source, a first optical thin film and a second optical thin film, wherein light can be reflected for many times along the interior of the light guide plate, the light guide plate comprises a first, a second, a third and a fourth surfaces, the first surface is an opposite side of the second surface, and the third surface is an opposite side of the fourth surface; the luminous source is arranged on the third surface of the light guide plate, and can emit the light into the light guide plate; the first optical thin film is arranged on the first surface of the light guide plate and can evenly distribute light which is emitted from the first surface of the light guide plate; the second optical thin film is arranged on the second surface of the light guide plate and can evenly distribute light which is emitted from the second surface of the light guide plate. Because whether reflecting sheets are pasted on all or parts of the first, the second and the fourth surfaces of the light guide plate of the present invention can be selected, a single back light source can be used for realizing a double-surface liquid crystal display or a tri-surface liquid crystal display, and the double-surface liquid crystal display or the tri-surface liquid crystal display which adopts the back light module of the present invention has the advantages of low cost, small size and thin thickness.
Description
Technical field
The present invention relates to LCD, especially a kind of backlight liquid crystal display module can 1 utilizes single backlight to form double side liquid crystal display or three LCD.
Background technology
Along with the fast development of electronic industry and opto-electronics, LCD (Liquid CrystalDevice; LCD) in human daily life, occupied epochmaking status, such as LCD Panel, personal digital assistant (Per50nal Digital Assistant; PDA) screen, screen of mobile phone or the like have all adopted LCD.
At first please refer to Fig. 1, it is the diagrammatic cross-section of the LCD of prior art.Described double side liquid crystal display comprises a light guide plate 10, a light emitting source 12, first optical thin film 20 and first LCD panel 40.
Described light guide plate 10 is wedge type or flat board, comprises first surface 10a and second surface 10b, also is pasted with reflecting piece 15 on first surface 10a.Described light guide plate 10 makes light repeatedly reflect along these light guide plate 10 inside, light head for target direction is restrained, and penetrated by the second surface 10b of this light guide plate 10.
Described light emitting source 12 is positioned at the 3rd surperficial 10c of this light guide plate 10, can the end face lighting system, and make light inject skill light guide plate 10.Described light emitting source 12 is a fluorescent lamp, can be made of the cathode tube (cathode lamp) of caliber approximate number centimetre; Also can be CCFL, LED... or any substituted light source.In the outside of fluorescent lamp, installed a fluorescent tube reflex housing 13, prevent that the light of fluorescent lamp from penetrating to escaping, and enter the ratio of light guide plate by end face through reflex lifting light.
The first surface of described first optical thin film 20 is positioned on the second surface 10b of this light guide plate 10, and the light that penetrates from the second surface 10b of this light guide plate 10 is evenly distributed.Described first optical thin film 20 is the combination of first diffusion sheet 21, first brightening piece 22, second brightening piece 23 and second diffusion sheet 24.Described first LCD panel 40 is pasted on the second surface of the described first optics book film 20, in order to show image.
But more and more electronic products need plural LCD panel (for example double side liquid crystal display or three LCD).If existing product is will show plural LCD panel the time, plural module backlight then must be arranged, manufacturing cost is significantly improved, also make that the volume of two-sided or three LCD is too huge, obviously can't satisfy the littler thinner trend of modern electronic product.
Therefore, at emerging double side liquid crystal display or three LCD, how to develop low cost, volume is little and the module backlight of thin thickness, just becomes very important subject under discussion of LCD dealer.
Summary of the invention
Fundamental purpose of the present invention provides a kind of module backlight that utilizes the formed display with double faces of single backlight.
Secondary objective of the present invention provides a kind of formed three display backlight modules of single backlight that utilize.
A further object of the present invention provides a kind of formed double side liquid crystal display of single backlight that utilizes.
A further object of the present invention provides a kind of formed three LCD of single backlight of utilizing.
The object of the present invention is achieved like this: a kind of backlight liquid crystal display module comprises: a light guide plate, with so that light repeatedly reflect along this light guide plate inside; Described light guide plate comprises first surface, second surface, the 3rd surface and the 4th surface, and wherein said first surface is the opposite side of second surface, and described the 3rd surface is the opposite side on the 4th surface; One light emitting source, described light emitting source are positioned at the 3rd surface of this light guide plate, can make light inject this light guide plate; First optical thin film, it is positioned on the first surface of this light guide plate, and the light that penetrates from the first surface of this light guide plate is evenly distributed; And second optical thin film, it is positioned on the second surface of this light guide plate, and the light that penetrates from the second surface of this light guide plate is evenly distributed; Wherein said optical thin film comprises diffusion sheet and brightening piece.
Among the present invention the first surface of light guide plate, second surface and the 4th surface whether all can select or one one paste reflecting piece, realize double side liquid crystal display or three LCD so can utilize single backlight, feasible double side liquid crystal display or three LCD that adopt module backlight of the present invention, cost is low, volume is little and thin thickness.
Description of drawings
Fig. 1 is the diagrammatic cross-section of the LCD of prior art;
Fig. 2 is the diagrammatic cross-section of the disclosed double side liquid crystal display of first embodiment of the invention;
Fig. 3 is the diagrammatic cross-section of the disclosed double side liquid crystal display of second embodiment of the invention;
Fig. 4 is the diagrammatic cross-section of the disclosed double side liquid crystal display of third embodiment of the invention;
Fig. 5 is the diagrammatic cross-section of disclosed three LCD of fourth embodiment of the invention;
Fig. 6 is the diagrammatic cross-section of the disclosed double side liquid crystal display of fifth embodiment of the invention.
Embodiment
The present invention is about a kind of backlight liquid crystal display module, particularly about a kind of formed two-sided or three LCD of single backlight of utilizing.Purpose of the present invention is that the direction that the backlight ray cast goes out is come out by the directional divergence that single direction changes into more than 2 or 2, no matter and light guide plate is wedge type or flat board.
In addition, the disclosed backlight liquid crystal display module of the present invention is applicable to any type of LCD, and membrane transistor LCD (TFT-LCD) or STN-LCD or the like are all applicable such as.
At first please refer to Fig. 2, it is the diagrammatic cross-section of the disclosed double side liquid crystal display of first embodiment of the invention.Described double side liquid crystal display comprises a light guide plate 10, a light emitting source 12, first optical thin film 20, second optical thin film 30, first LCD panel 40 and second LCD panel 50.
Described light guide plate 10 is wedge type or flat board, comprises first surface 10a, second surface 10b, the 3rd surperficial 10c and the 4th surperficial 10d, and wherein said first surface 10a is the opposite side of second surface 10b, and the described the 3rd surperficial 10c is the opposite side of the 4th surperficial 10d; Wherein first surface 10a, second surface 10b and the 4th surperficial 10d all can select to paste or do not paste reflecting piece.In the present embodiment, the neither stickup reflecting piece of first surface 10a and second surface 10b, the 4th surperficial 10d then pastes reflecting piece 15.The disclosed light guide plate 10 of present embodiment makes light repeatedly reflect along these light guide plate 10 inside, light head for target direction is restrained, and penetrated by the first surface 10a and the second surface 10b of this light guide plate 10.Light guide plate 10 of the present invention is made of the acryl material such as propylene, and but nationality that screen painting, indentation, surface are slightly made, the mode of internal divergence particle or direct injection (injection), defines circle, sexangle or foursquare particle pattern on the surface of light guide plate 10.Because these particle patterns are by having high reflectance and the material of extinction (as titania or barium sulphate) institute formation not, so can be as the diffusion point that makes light generation scattering.
Described light emitting source 12 is positioned at the 3rd surperficial 10c of this light guide plate 10, can the end face lighting system, and make light inject this light guide plate 10.Described light emitting source 12 is a fluorescent lamp, can be made of the cathode tube (cathode lamp) of caliber approximate number centimetre; Also can be CCFL, LED... or any substituted light source.In the outside of fluorescent lamp, installed a fluorescent tube reflex housing 13, prevent that the light of fluorescent lamp from penetrating to escaping, and enter the ratio of light guide plate by end face through reflex lifting light.
The first surface of described first optical thin film 20 is positioned on the first surface 10a of this light guide plate 10, and the light that penetrates from the first surface 10a of this light guide plate 10 is evenly distributed.Described first optical thin film 20 is first diffusion sheet 21, or be the combination of first diffusion sheet 21, first brightening piece 22, second brightening piece 23 and second diffusion sheet 24, wherein said first diffusion sheet 21 and second diffusion sheet 24 can make the light that penetrates from this light guide plate produce scattering and distribute more evenly, and light luminance is comparatively relaxed, described first brightening piece 22 and second brightening piece 23 are prismatic lens (prizm), can produce required spotlight effect.When the brightness demand increases, can directly increase prismatic lens (prizm) number, optical efficiency also can effectively directly promote, and the space also can not increase.
The first surface of described second optical thin film 30 is positioned on the second surface 10b of this light guide plate 10, and the light that penetrates from the second surface 10b of this light guide plate 10 is evenly distributed.Described second optical thin film 30 is first diffusion sheet 31, or be the combination of first diffusion sheet 31, first brightening piece 32, second brightening piece 33 and second diffusion sheet 34, wherein said first diffusion sheet 31 and second diffusion sheet 34 can make the light that penetrates from this light guide plate produce scattering and distribute more evenly, and light luminance is comparatively relaxed, described first brightening piece 32 and second brightening piece 33 are prismatic lens (prizm), can produce required spotlight effect.When the brightness demand increases, can directly increase prismatic lens (prizm) number, optical efficiency also can effectively directly promote, and the space also can not increase.
Described first LCD panel 40 is pasted on the second surface of described first optical thin film 20, the second surface that is pasted on described second optical thin film 30 of second LCD panel 50.In present embodiment, the neither stickup reflecting piece of the first surface 10a of light guide plate 10 and second surface 10b, therefore the first surface 10a of light guide plate 10 and second surface 10b all have the light ejaculation, and also therefore first LCD panel 40 and second LCD panel 50 all can show images.
Next please refer to Fig. 3, it is the diagrammatic cross-section of the disclosed double side liquid crystal display of second embodiment of the invention.Described double side liquid crystal display comprises a light guide plate 10, a light emitting source 12, first optical thin film 20, second optical thin film 30, first LCD panel 40 and second LCD panel 50.
Described light guide plate 10 is wedge type or flat board, comprises first surface 10a, second surface 10b, the 3rd surperficial 10C and the 4th surperficial 10d, and wherein said first surface 10a is the opposite side of second surface 10b, and the described the 3rd surperficial 10c is the opposite side of the 4th surperficial 10d; Wherein first surface 10a, second surface 10b and the 4th surperficial 10d all can select to paste or do not paste reflecting piece.In the present embodiment, first surface 10a does not paste reflecting piece, and the first part 10b1 and the 4th surperficial 10d of second surface 10b then paste reflecting piece 15.The disclosed light guide plate 10 of present embodiment makes light repeatedly reflect along these light guide plate 10 inside, light head for target direction is restrained, and penetrate by the part (second portion 10b2) of not pasting reflecting piece 15 among the first surface 10a of this light guide plate 10 and the second surface 10b, as shown in Figure 3.
The first surface of described first optical thin film 20 is positioned on the first surface 10a of this light guide plate 10, and the light that penetrates from the first surface 10a of this light guide plate 10 is evenly distributed.Described first optical thin film 20 is first diffusion sheet 21, or is the combination of first diffusion sheet 21, first brightening piece 22, second brightening piece 23 and second diffusion sheet 24.The first surface of described second optical thin film 30 is positioned at the part (second portion 10b2) of not pasting reflecting piece 15 on the second surface 10b of this light guide plate 10, and the light that penetrates from the second surface 10b of this light guide plate 10 is evenly distributed.Described second optical thin film 30 is first diffusion sheet 31, or is the combination of first diffusion sheet 31, first brightening piece 32, second brightening piece 33 and second diffusion sheet 34.Described first LCD panel 40 is pasted on the second surface of described first optical thin film 20, the second surface that is pasted on described second optical thin film 30 of second LCD panel 50.Other formations of present embodiment and material and first embodiment are similar, and be too tediously long for avoiding length, repeats no more.
In present embodiment, the second part 10b2 of the first surface 10a of light guide plate 10 and second surface 10b does not paste reflecting piece, therefore second of the first surface 10a of light guide plate 10 and the second surface 10b part 10b2 all has the light ejaculation, and also therefore first LCD panel 40 and second LCD panel 50 all can show images.
Next please refer to Fig. 4, it is the diagrammatic cross-section of the disclosed double side liquid crystal display of third embodiment of the invention.Described double side liquid crystal display comprises a light guide plate 10, a light emitting source 12, first optical thin film 20, second optical thin film 30, first LCD panel 40 and second LCD panel 50.
Described light guide plate 10 is wedge type or flat board, comprises first surface 10a, second surface 10b, the 3rd surperficial 10C and the 4th surperficial 10d, and wherein said first surface 10a is the opposite side of second surface 10b, and the described the 3rd surperficial 10c is the opposite side of the 4th surperficial 10d; Wherein first surface 10a, second surface 10b and the 4th surperficial 1 0d all can select to paste or do not paste reflecting piece.In the present embodiment, the second portion 10a2 of first surface 10a and the second portion 10b2 of second surface 10b do not paste reflecting piece, and the first part 10b1 and the 4th surperficial 10d of first part 10a1, the second surface 10b of first surface 10a then paste reflecting piece 15.The disclosed light guide plate 10 of present embodiment makes light repeatedly reflect along these light guide plate 10 inside, light head for target direction is restrained, and penetrate by the second portion 10a2 of the first surface 10a of this light guide plate 10 and the second portion 10b2 of second surface 10b, as shown in Figure 4.
The first surface of described first optical thin film 20 is positioned on the first surface 10a of this light guide plate 10, and the light that penetrates from the second portion 10a2 of the first surface 10a of this light guide plate 10 is evenly distributed.Described first optical thin film 20 is first diffusion sheet 21, or is the combination of first diffusion sheet 21, first brightening piece 22, second brightening piece 23 and second diffusion sheet 24.The first surface of described second optical thin film 30 is positioned at the part (second portion 10b2) of not pasting reflecting piece 15 on the second surface 10b of this light guide plate 10, and the light that penetrates from the second surface 10b of this light guide plate 10 is evenly distributed.Described second optical thin film 30 is first diffusion sheet 31, or is the combination of first diffusion sheet 31, first brightening piece 32, second brightening piece 33 and second diffusion sheet 34.Described first LCD panel 40 is pasted on the second surface of described first optical thin film 20, and second LCD panel 50 is pasted on the second surface of described second optical thin film 30.Other formations of present embodiment and material and first embodiment are similar, and too tediously long for avoiding length, no longer basket for holding earth is stated.
In present embodiment, the second part 10b2 of the second part 10a2 of the first surface 10a of light guide plate 10 and second surface 10b does not paste reflecting piece, therefore the second part 10b2 of second of the first surface 10a of the light guide plate 10 part 10a2 and second surface 10b all has the light ejaculation, and also therefore first LCD panel 40 and second LCD panel 50 all can show images.
Next please refer to Fig. 5, it is the diagrammatic cross-section of disclosed three LCD of fourth embodiment of the invention.Described double side liquid crystal display comprises a light guide plate 10, a light emitting source 12, the first optics book film 20, second optical thin film 30, first LCD panel 40, second LCD panel 50 and the 3rd LCD panel 60.
Described light guide plate 10 is wedge type or flat board, comprises first surface 10a, second surface 10b, the 3rd surperficial 10C and the 4th surperficial 10d, and wherein said first surface 10a is the opposite side of second surface 10b, and the described the 3rd surperficial 10c is the opposite side of the 4th surperficial 10d; Wherein first surface 10a, second surface 10b and the 4th surperficial 10d all can select to paste or do not paste reflecting piece.In the present embodiment, first surface 10a and second surface 10b and the neither stickup reflecting piece of the 4th surperficial 10d.The disclosed light guide plate 10 of present embodiment makes light repeatedly reflect along these light guide plate 10 inside, with light head for target direction convergence, and by first surface 10a and the second surface 10b and the 4th surperficial 10d ejaculation of this light guide plate 10.
The first surface of described first optical thin film 20 is positioned on the first surface 10a of this light guide plate 10, and the light that penetrates from the first surface 10a of this light guide plate 10 is evenly distributed.Described first optical thin film 20 is first diffusion sheet 21, or be the combination of first diffusion sheet 21, first brightening piece 22, second brightening piece 23 and second diffusion sheet 24, wherein said first diffusion sheet 21 and second diffusion sheet 24 can make the light that penetrates from this light guide plate produce scattering and distribute more evenly, and light luminance is comparatively relaxed, described first brightening piece 22 and second brightening piece 23 are (prizm) in the prismatic lens, can produce required spotlight effect.When the brightness demand increases, can directly increase prismatic lens (prizm) number, optical efficiency also can effectively directly promote, and the space also can not increase.
The first surface of described second optical thin film 30 is positioned on the second surface 10b of this light guide plate 10, and the light that penetrates from the second surface 10b of this light guide plate 10 is evenly distributed.Described second optical thin film 30 is first diffusion sheet 31, or be the combination of first diffusion sheet 31, first brightening piece 32, second brightening piece 33 and second diffusion sheet 34, wherein said first diffusion sheet 31 and second diffusion sheet 34 can make the light that penetrates from this light guide plate produce scattering and distribute more evenly, and light luminance is comparatively relaxed, described first brightening piece 32 and second brightening piece 33 are prismatic lens (prizm), can produce required spotlight effect.When the brightness demand increases, can directly increase prismatic lens (prizm) number, optical efficiency also can effectively directly promote, and the space also can not increase.Other formations of present embodiment and material and first embodiment are similar, and be too tediously long for avoiding length, repeats no more.
Described first LCD panel 40 is pasted on the second surface of described first optical thin film 20, the second surface that is pasted on the described second optics book film 30 of second LCD panel 50.In present embodiment, the first surface 10a of light guide plate 10 and second surface 10b and the neither stickup reflecting piece of the 4th surperficial 10d, therefore the first surface 10a of light guide plate 10 and second surface 10b and the 4th surperficial 10d all have the light ejaculation, and also therefore first LCD panel 40, second LCD panel 50 and the 3rd LCD panel 60 all can show images.
Next please refer to Fig. 6, it is the diagrammatic cross-section of the disclosed double side liquid crystal display of fifth embodiment of the invention.Described double side liquid crystal display comprises a light guide plate 10, a light emitting source 12, first optical thin film 20, second optical thin film 30, first LCD panel 40 and second LCD panel 50.
Described light guide plate 10 is wedge type or flat board, comprises first surface 10a, second surface 10b, the 3rd surperficial 10C and the 4th surperficial 10d, and wherein said first surface 10a is the opposite side of second surface 10b, and the described the 3rd surperficial 10c is the opposite side of the 4th surperficial 10d; Wherein first surface 10a, second surface 10b and the 4th surperficial 10d all can select to paste or do not paste reflecting piece.In the present embodiment, first surface 10a does not paste reflecting piece, and second surface 10b then pastes the semi-transparent visual reflex plate 16 of crossing.The disclosed light guide plate 10 of present embodiment makes light repeatedly reflect along these light guide plate 10 inside, light head for target direction is restrained, and penetrated by the first surface 10a and the second surface 10b of this light guide plate 10, as shown in Figure 6.
The first surface of the described first optics book film 20 is positioned on the first surface 10a of this light guide plate 10, and the light that penetrates from the first surface 10a of this light guide plate 10 is evenly distributed.Described first optical thin film 20 is first diffusion sheet 21, or is the combination of first diffusion sheet 21, first brightening piece 22, second brightening piece 23 and second diffusion sheet 24.The first surface of described second optical thin film 30 is positioned on the second surface 10b of this light guide plate 10, and the light that penetrates from the second surface 10b of this light guide plate 10 is evenly distributed.Described second optical thin film 30 is first diffusion sheet 31, or is the combination of first diffusion sheet 31, first brightening piece 32, second brightening piece 33 and second diffusion sheet 34.Described first LCD panel 40 is pasted on the second surface of described first optical thin film 20, the second surface that is pasted on described first optical thin film 30 of second LCD panel 50.Other formations of present embodiment and material and first embodiment are similar, and be too tediously long for avoiding length, repeats no more.
In present embodiment, the first surface 10a of light guide plate 10 does not paste reflecting piece, and second surface 10b pastes the semi-transparent visual reflex plate 16 of crossing, therefore the first surface 10a of light guide plate 10 and second surface 10b all have the light ejaculation, and also therefore first LCD panel 40 and second LCD panel 50 all can show images.
Except above disclosed each embodiment, the present invention also can all can select to paste or do not paste the principle of reflecting piece according to first surface 10a, second surface 10b and the 4th surperficial 10d, carries out the variation of various combinations again.For avoiding instructions too tediously long, repeat no more in this.
Though the present invention discloses as above with preferred embodiment; right its is not in order to qualification the present invention, any those who are familiar with this art, without departing from the spirit and scope of the invention; when can doing a little change and retouching, so the present invention's protection domain is as the criterion when looking claims scope person of defining.
Claims (8)
1. backlight liquid crystal display module is characterized in that: comprise:
One light guide plate, with so that light repeatedly reflect along this light guide plate inside; Described light guide plate comprises first surface, second surface, the 3rd surface and the 4th surface, and wherein said first surface is the opposite side of second surface, and described the 3rd surface is the opposite side on the 4th surface;
One light emitting source, described light emitting source are positioned at the 3rd surface of this light guide plate, can make light inject this light guide plate;
First optical thin film, it is positioned on the first surface of this light guide plate, and the light that penetrates from the first surface of this light guide plate is evenly distributed;
Second optical thin film, it is positioned on the second surface of this light guide plate, and the light that penetrates from the second surface of this light guide plate is evenly distributed;
Wherein said optical thin film is made up of diffusion sheet and brightening piece.
2. backlight liquid crystal display module as claimed in claim 1 is characterized in that: described brightening piece is a prismatic lens.
3. backlight liquid crystal display module as claimed in claim 1, it is characterized in that: also paste first LCD panel on described first optical thin film, also paste second LCD panel on described second optical thin film, also paste the 3rd LCD panel on the 4th surface of described light guide plate.
4. backlight liquid crystal display module as claimed in claim 1 is characterized in that: the 4th surface of described light guide plate is pasted with reflecting piece.
5. backlight liquid crystal display module as claimed in claim 4 is characterized in that: the first surface of described light guide plate is pasted with reflecting piece, and the part on adjacency the 4th surface of described second surface is pasted with reflecting piece.
6. backlight liquid crystal display module as claimed in claim 4 is characterized in that: the part on adjacency the 3rd surface of the first surface of described light guide plate is pasted with reflecting piece, and the part on adjacency the 4th surface of described second surface is pasted with reflecting piece.
7. backlight liquid crystal display module as claimed in claim 4 is characterized in that: the first surface of described light guide plate is pasted with reflecting piece, and described second surface is then pasted the semi-transparent visual reflex plate of crossing.
8. backlight liquid crystal display module as claimed in claim 4 is characterized in that: also paste first LCD panel on described first optical thin film, also paste second LCD panel on described second optical thin film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02132096.9A CN1236348C (en) | 2002-09-10 | 2002-09-10 | Back light module for liquid crystal display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02132096.9A CN1236348C (en) | 2002-09-10 | 2002-09-10 | Back light module for liquid crystal display |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1482498A CN1482498A (en) | 2004-03-17 |
| CN1236348C true CN1236348C (en) | 2006-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN02132096.9A Expired - Lifetime CN1236348C (en) | 2002-09-10 | 2002-09-10 | Back light module for liquid crystal display |
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| CN (1) | CN1236348C (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1301433C (en) * | 2004-04-07 | 2007-02-21 | 友达光电股份有限公司 | Backlight modular |
| CN100376965C (en) * | 2004-12-24 | 2008-03-26 | 群康科技(深圳)有限公司 | LCD device |
| CN101303470B (en) * | 2007-05-09 | 2011-06-01 | 奇美电子股份有限公司 | Display apparatus of two-sided screen |
| US8303155B2 (en) * | 2007-10-19 | 2012-11-06 | Sharp Kabushiki Kaisha | Bifacial light emitting backlight |
| CN102566141A (en) * | 2011-12-23 | 2012-07-11 | 创维液晶器件(深圳)有限公司 | Liquid crystal module and double-sided display liquid crystal television |
| CN107979668B (en) * | 2012-06-25 | 2020-12-18 | 联想(北京)有限公司 | Electronic device and display control method |
| CN102981309A (en) * | 2012-12-10 | 2013-03-20 | 京东方科技集团股份有限公司 | Display device |
| CN103197370B (en) * | 2013-04-07 | 2015-05-13 | 京东方科技集团股份有限公司 | Light guide plate manufacturing method |
| CN104376796A (en) * | 2014-11-17 | 2015-02-25 | 深圳市华星光电技术有限公司 | Transparent display device |
| TWI540362B (en) * | 2015-05-21 | 2016-07-01 | 王仁宏 | Double-sided display module with optically functional film |
| TWI677733B (en) * | 2015-06-01 | 2019-11-21 | 凌暉科技股份有限公司 | Double-sided display |
| TW201643508A (en) * | 2015-06-01 | 2016-12-16 | Lwo Technology Co Ltd | Method for manufacturing dual-side display |
-
2002
- 2002-09-10 CN CN02132096.9A patent/CN1236348C/en not_active Expired - Lifetime
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| CN1482498A (en) | 2004-03-17 |
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