CN100385292C - Double side liquid crystal display - Google Patents
Double side liquid crystal display Download PDFInfo
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- CN100385292C CN100385292C CNB2005101138397A CN200510113839A CN100385292C CN 100385292 C CN100385292 C CN 100385292C CN B2005101138397 A CNB2005101138397 A CN B2005101138397A CN 200510113839 A CN200510113839 A CN 200510113839A CN 100385292 C CN100385292 C CN 100385292C
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- emitting diode
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Abstract
The present invention discloses a liquid crystal display with double surfaces, which is capable of displaying pictures by double surfaces. A backlight source of the liquid crystal display with double surfaces is an organic luminous diode module capable of emitting light by double surfaces. The organic luminous diode module capable of emitting light by double surfaces is formed by staggering a plurality of organic luminous diodes capable of emitting light upwards and a plurality of organic luminous diodes capable of emitting light downwards.
Description
Technical field
The present invention relates to a kind of LCD, and be particularly related to a kind of double side liquid crystal display of double-sided display type picture.
Background technology
Because the variation of portable electronic products function, so the double side liquid crystal display of double-sided display type picture (liquid crystal display; LCD) demand is more and more higher.At present general way is placed in the portable electronic products for direct back-to-back the combining of two LCD again.But this kind way makes that the thickness of double side liquid crystal display of double-sided display type picture is very thick, and weight is heavy again, allows portable electronic products must sacrifice the light and handy characteristic of its part.
Organic Light Emitting Diode (organic light-emitting diode; OLED) have autoluminescence, the high speed of response, low driving voltage, wide viewing angle, slimming, technology easily and low cost and other advantages, make it become the main flow of the luminescent device of flat-panel screens of future generation.Known had use Organic Light Emitting Diode replacement tradition to use cold cathode fluorescent tube (cold cathode fluorescent tube) to come as Backlight For Liquid Crystal Display Panels as the backlight module of light source, as No. 583466 patent of TaiWan, China patent announcement, to reduce the thickness and the weight of LCD.Yet form the double side liquid crystal display of double-sided display type picture, still must utilize two groups of Organic Light Emitting Diode modules to be backlight,, can reach the purpose of double-sided display picture by the mode of back-to-back combination.
Summary of the invention
Therefore, purpose of the present invention is for providing a kind of double side liquid crystal display of double-sided display type picture, and its number by the backlight module that Organic Light Emitting Diode constituted can be reduced to one by two.So, can reduce the thickness and the weight of double side liquid crystal display, make it be more suitable for being applied on the portable electronic products.
According to one preferred embodiment of the present invention, can on same transparency carrier, be formed with the OLED module, utilize the photoengraving lithography on transparency carrier, form respectively a plurality of make progress luminous Organic Light Emitting Diode with can luminous downwards Organic Light Emitting Diode, allow said two devices be staggered, but form the Organic Light Emitting Diode module of double-side.But allow the Organic Light Emitting Diode module clip of this double-side between two groups of LCD, can provide backlight simultaneously to this LCD of two groups.
Therefore, though only produce an Organic Light Emitting Diode module, but its but can be simultaneously as the backlight of double side liquid crystal display, thickness and weight with the double side liquid crystal display of further reduction double-sided display type picture allow portable electronic products keep its light and handy characteristic.
Description of drawings
State with other purpose, feature, advantage and embodiment and can become apparent on the present invention for allowing, being described in detail as follows of accompanying drawing:
Fig. 1 illustrates a kind of according to the preferred embodiment of the invention cross-sectional view of Organic Light Emitting Diode module;
Fig. 2 illustrates a kind of according to the preferred embodiment of the invention cross-sectional view of double side liquid crystal display of double-sided display type picture.
Description of reference numerals
100: Organic Light Emitting Diode module 110: transparency carrier
120: metallic cathode 130: organic luminous layer
140: transparent anode 150a: luminous Organic Light Emitting Diode makes progress
150b: downward luminous Organic Light Emitting Diode 160: transparency carrier
170: frame glue 200: double side liquid crystal display
210: transparency carrier 220: public electrode
230: liquid crystal layer 240: control basal plate
250: control basal plate 260: liquid crystal layer
270: public electrode 280: transparency carrier
400: the second liquid crystal panels of 300: the first liquid crystal panels
Embodiment
The structure of Organic Light Emitting Diode is formed by the multilayer film lamination at present, and it comprises transparent anode (anode), organic luminous layer and metallic cathode (cathode).Above-mentioned organic luminous layer can be subdivided into hole injection layer (hole injection layer again again; HIL), hole transmission layer (hole transfer layer; HTL), luminescent layer (emission layer; EML), electron transfer layer (electron transfer layer; ETL) with electron injecting layer (electron injection layer; EIL), wherein hole injection layer is to contact with each other with transparent anode, and electron injecting layer is to contact with each other with metallic cathode.
And the principle of luminosity of Organic Light Emitting Diode is: apply voltages on transparent anode and the metallic cathode, by the transparent anode injected hole, inject electronics by metallic cathode; When meet in luminescent layer in electronics and hole, can cause the molecule of luminescent layer to be in excited state; When the molecule of luminescent layer is got back to ground state by excited state, will emit energy with the form of light.
Because the thickness of the metallic cathode of Organic Light Emitting Diode generally needs just to suit the requirements more than 1500 dusts, makes that Organic Light Emitting Diode can't printing opacity in that side of metallic cathode.Therefore, known two of manufacturings earlier are the LCD of backlight with the Organic Light Emitting Diode, two back-to-back combining of LCD could be formed the double side liquid crystal display of double-sided display type picture then.
Therefore, the present invention proposes a kind of double side liquid crystal display of double-sided display type picture, and backlight module number that can two-sided LCD is required be reduced to one by two, and this backlight module is made of a plurality of Organic Light Emitting Diode.In accordance with a preferred embodiment of the present invention, can on same transparency carrier, be formed with the OLED module, utilize photoetching technique on transparency carrier, form respectively a plurality of make progress luminous Organic Light Emitting Diode with can luminous downwards Organic Light Emitting Diode, allow said two devices be staggered.Therefore, though only produce an Organic Light Emitting Diode module, but but can be with the backlight module of this Organic Light Emitting Diode module while as the double side liquid crystal display light source, thickness and weight with the double side liquid crystal display of further reduction double-sided display type picture allow portable electronic products keep its light and handy characteristic.
Please refer to Fig. 1, it illustrates the cross-sectional view of a kind of Organic Light Emitting Diode module in accordance with a preferred embodiment of the present invention.On transparency carrier 110, form a plurality of Organic Light Emitting Diode 150a that make progress luminous respectively, and a plurality of luminous Organic Light Emitting Diode 150b downwards, constitute a light sources.And then cover on the light sources with another transparency carrier 160, use frame glue 170 (asking for an interview Fig. 2) that transparency carrier 110 and transparency carrier 160 are bonded together, so that light sources is encapsulated, but constitute the Organic Light Emitting Diode module 100 of double-side.
Above-mentioned Organic Light Emitting Diode 150a that makes progress luminous and downward luminous Organic Light Emitting Diode 150b are for being staggered each other.The layers of material of the Organic Light Emitting Diode 150a that wherein makes progress luminous is metallic cathode 120, organic luminous layer 130 and transparent anode 140 from the bottom to top in regular turn.The layers of material of luminous Organic Light Emitting Diode 150b is transparent anode 140, organic luminous layer 130 and metallic cathode 120 from the bottom to top in regular turn downwards.The luminescent material of above-mentioned organic luminous layer 130 for example can be general luminous organic material or polymer luminescent material.
The manufacture method of above-mentioned Organic Light Emitting Diode 150a that makes progress luminous and luminous downwards Organic Light Emitting Diode 150b can be any suitable known production method.Because one of ordinary skill in the art can determine to be fit to Organic Light Emitting Diode 150a and the downward luminous Organic Light Emitting Diode 150b which kind of known production method manufacturing to make progress luminous with easily, therefore no longer adds to give unnecessary details its manufacture method.
Please refer to Fig. 2, it illustrates the cross-sectional view of the double side liquid crystal display of a kind of double-sided display type picture in accordance with a preferred embodiment of the present invention.Among Fig. 2, but on the upper surface of the lower surface of the transparency carrier 110 of the Organic Light Emitting Diode module 100 of double-side shown in Figure 1 and transparency carrier 160, respectively make one group of display panels, to constitute the double side liquid crystal display 200 of double-sided display type picture.Be control basal plate 240, liquid crystal layer 230, public electrode 220 and transparency carrier 210 in regular turn under transparency carrier 110, above-mentioned element constitutes first liquid crystal panel 300 together.And be control basal plate 250, liquid crystal layer 260, public electrode 270 and transparency carrier 280 in regular turn on transparency carrier 160, above-mentioned element constitutes second liquid crystal panel 400.
And the chromatic filter layer of first liquid crystal panel 300 (not shown on the figure) can be positioned on control basal plate 240 or the transparency carrier 210.Similarly, the chromatic filter layer of second liquid crystal panel 400 (not shown on the figure) can also be positioned on control basal plate 250 or the transparency carrier 280.Because one of ordinary skill in the art is known this and how to be made multiple known display panels, so the manufacture method of no longer adding to give unnecessary details first liquid crystal panel 300 and second liquid crystal panel 400.
By the invention described above preferred embodiment as can be known, allow the luminous Organic Light Emitting Diode that makes progress be staggered, can form the Organic Light Emitting Diode module of double-side with luminous downwards Organic Light Emitting Diode.But utilize the Organic Light Emitting Diode module of this double-side again, be clipped between two groups of display panels as backlight.So, only need to use an Organic Light Emitting Diode module that two groups of required backlights of display panels that the back side is relative just can be provided simultaneously.Therefore use the present invention, can significantly reduce the thickness and the weight of the display panels of double-sided display type picture, be applied on the portable electronic products being suitable for.
Though the present invention with a preferred embodiment openly as above; right its is not in order to limit the present invention; any one of ordinary skill in the art; without departing from the spirit and scope of the present invention; when can being used for a variety of modifications and variations, so protection scope of the present invention is as the criterion when looking claims person of defining.
Claims (9)
1. double side liquid crystal display comprises:
First LCD MODULE;
First transparency carrier is positioned on described first LCD MODULE;
The Organic Light Emitting Diode module is positioned on described first transparency carrier, and described Organic Light Emitting Diode module has staggered a plurality of luminous Organic Light Emitting Diode and a plurality of downward luminous Organic Light Emitting Diodes of making progress on this first transparency carrier, one side; And
Second LCD MODULE is positioned on the described Organic Light Emitting Diode module.
2. double side liquid crystal display as claimed in claim 1 also comprises:
Second transparency carrier is between described Organic Light Emitting Diode module and described second LCD MODULE.
3. double side liquid crystal display as claimed in claim 2, wherein, each described luminous Organic Light Emitting Diode that makes progress comprises:
Metallic cathode is positioned on described first transparency carrier;
Organic luminous layer is positioned on the described metallic cathode; And
Transparent anode is positioned on the described organic luminous layer.
4. double side liquid crystal display as claimed in claim 2, wherein, each described downward luminous Organic Light Emitting Diode comprises:
Transparent anode is positioned on described first transparency carrier;
Organic luminous layer is positioned on the described transparent anode; And
Metallic cathode is positioned on the described organic luminous layer.
5. double side liquid crystal display comprises:
First transparency carrier;
First public electrode is positioned on described first transparency carrier;
First liquid crystal layer is positioned on the described public electrode;
First control basal plate is positioned on the described liquid crystal layer, and described first control basal plate has the first control circuit and first pixel electrode array;
Second transparency carrier is positioned on described first control basal plate;
The Organic Light Emitting Diode module, be positioned on described second transparency carrier, described Organic Light Emitting Diode module has staggered a plurality of luminous Organic Light Emitting Diode and a plurality of downward luminous Organic Light Emitting Diodes of making progress on described second transparency carrier, one side;
The 3rd transparency carrier is positioned on the described Organic Light Emitting Diode module;
Second control basal plate is positioned on described the 3rd transparency carrier, and described second control basal plate has the second control circuit and second pixel electrode array;
Second liquid crystal layer is positioned on described second control basal plate;
Second public electrode is positioned on described second liquid crystal layer; And
The 4th transparency carrier is positioned on described second public electrode.
6. double side liquid crystal display as claimed in claim 5, wherein, each luminous Organic Light Emitting Diode that makes progress comprises:
Metallic cathode is positioned on described second transparency carrier;
Organic luminous layer is positioned on the described metallic cathode; And
Transparent anode is positioned on the described organic luminous layer.
7. double side liquid crystal display as claimed in claim 5, wherein, each downward luminous Organic Light Emitting Diode comprises:
Transparent anode is positioned on described second transparency carrier;
Organic luminous layer is positioned on the described transparent anode; And
Metallic cathode is positioned on the described organic luminous layer.
8. double side liquid crystal display as claimed in claim 5, wherein, described first transparency carrier and described the 4th transparency carrier have chromatic filter layer respectively.
9. double side liquid crystal display as claimed in claim 5, wherein, described first control basal plate and described second control basal plate have chromatic filter layer respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101138397A CN100385292C (en) | 2005-10-19 | 2005-10-19 | Double side liquid crystal display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101138397A CN100385292C (en) | 2005-10-19 | 2005-10-19 | Double side liquid crystal display |
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| Publication Number | Publication Date |
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| CN1752800A CN1752800A (en) | 2006-03-29 |
| CN100385292C true CN100385292C (en) | 2008-04-30 |
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| CNB2005101138397A Active CN100385292C (en) | 2005-10-19 | 2005-10-19 | Double side liquid crystal display |
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Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101163358B (en) * | 2007-11-14 | 2012-01-04 | 清华大学 | Display device |
| CN103208247B (en) * | 2012-01-16 | 2016-12-28 | 联想(北京)有限公司 | A kind of Biscreen display and display packing |
| US9166116B2 (en) * | 2012-05-29 | 2015-10-20 | Formosa Epitaxy Incorporation | Light emitting device |
| CN103094312B (en) | 2013-01-11 | 2015-08-19 | 京东方科技集团股份有限公司 | Organic electroluminescence display panel |
| CN103345884B (en) * | 2013-06-26 | 2016-03-09 | 京东方科技集团股份有限公司 | double-side display device and preparation method thereof |
| TWI612656B (en) * | 2013-08-19 | 2018-01-21 | 友達光電股份有限公司 | Dual emission type display panel |
| CN103915481A (en) | 2014-03-18 | 2014-07-09 | 京东方科技集团股份有限公司 | Display panel and display device |
| CN105789239A (en) * | 2014-12-15 | 2016-07-20 | 北京维信诺科技有限公司 | Double-sided light emitting device for OLED display screen and preparation method |
| CN105278166A (en) * | 2015-12-04 | 2016-01-27 | 深圳市华星光电技术有限公司 | liquid crystal display device, array substrate thereof and manufacturing method of array substrate |
| CN105334667A (en) * | 2015-12-04 | 2016-02-17 | 深圳市华星光电技术有限公司 | Liquid crystal display device and array substrate thereof and method for manufacturing array substrate |
| TWI627766B (en) * | 2017-08-04 | 2018-06-21 | 友達光電股份有限公司 | Bi-directional optical module and transparent display device using the same |
| CN107505748B (en) * | 2017-08-30 | 2020-08-07 | 武汉华星光电半导体显示技术有限公司 | Liquid crystal display assembly |
| CN107799017A (en) * | 2017-11-08 | 2018-03-13 | 武汉华星光电半导体显示技术有限公司 | Display with double faces and preparation method thereof |
| CN110232299A (en) * | 2018-03-05 | 2019-09-13 | 上海箩箕技术有限公司 | Liquid crystal display die set |
| CN111710306B (en) * | 2020-06-28 | 2022-03-01 | 深圳康佳电子科技有限公司 | Self-luminous LCD (liquid crystal display) screen, display device and television |
| CN113299705B (en) * | 2021-05-10 | 2023-02-07 | 深圳市华星光电半导体显示技术有限公司 | Double-sided display panel and double-sided display device |
| CN115424538B (en) * | 2022-09-09 | 2024-04-09 | 惠科股份有限公司 | Display device and method for manufacturing the same |
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| Publication number | Publication date |
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| CN1752800A (en) | 2006-03-29 |
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