CN100350314C - Liquid crystal display unit with double-faced display and double-faced luminous back light panel - Google Patents
Liquid crystal display unit with double-faced display and double-faced luminous back light panel Download PDFInfo
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- CN100350314C CN100350314C CNB2004100085171A CN200410008517A CN100350314C CN 100350314 C CN100350314 C CN 100350314C CN B2004100085171 A CNB2004100085171 A CN B2004100085171A CN 200410008517 A CN200410008517 A CN 200410008517A CN 100350314 C CN100350314 C CN 100350314C
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Abstract
The present invention provides a liquid crystal display device displaying on double face and a backlight plate thereof. The double face light emission type backlight plate comprises a first basal plate, a second basal plate and an organic luminescent layer, wherein the first basal plate is provided with a cathode, the second basal plate is arranged above and opposite to the first basal plate, and the opposite surface is provided with a plurality of anodes. In addition, the organic luminescent layer is clamped between the cathode and the anodes.
Description
Technical field
The invention relates to the LCD device of double-sided display, particularly relevant for a kind of backlight of utilizing the dual-side luminescent type organic electric exciting light-emitting diode as the LCD device of double-sided display.
Background technology
The double-sided display technology is regarded as having the emerging technology that potentiality also may become LCD (LCD) panel, its principal feature is to watch the screen image from the both sides, front and back, be installed in easily in the portable apparatus such as mobile phone and PDA(Personal Digital Assistant), and can significantly reduce power consumption.
See also Fig. 1, in order to layout (arrangement) sectional view that shows known two-sided display liquid crystal display pannel.In Fig. 1, one first panel of LCD 30 and one second panel of LCD 10 with back to mode be provided with, respectively comprise one group of independently backlight module 40 and 20.That is this shows that known two-sided display liquid crystal display pannel has two groups of independently panel of LCD, respectively comprises a backlight module.Yet, use the panel of LCD of two groups of backlight modules will cause the thickness multiplication, power consumption is also doubled.
Traditionally, utilize white light or monochromatic organic electric exciting light-emitting diode backlight as LCD device, have advantages such as high brightness and low-power consume, be widely used in the backlight module purposes of LCD device.
Fig. 2 shows the installation drawing that uses the luminous Organic Light Emitting Diode of single face as the backlight of LCD device TOHKEMY JP2003-109747 number.The backlight of aforementioned Organic Light Emitting Diode comprises: a transparency carrier 50 has a negative electrode 70 on it; One organic luminous layer 80 is formed on the negative electrode 70, as the main ray structure of Organic Light Emitting Diode; One anode 90 is formed on the organic luminous layer 80.In addition, aforementioned Organic Light Emitting Diode backlight module more comprises a diffuser plate 60 of being made up of base material 64 and diffusion materials 62.The purpose of diffuser plate 60 is more evenly coordinated at the light that Organic Light Emitting Diode backlight module is sent, and can fully be obtained uniform in-plane light even dispersion of light source.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of dual-side luminescent type backlight, utilize the dual-side luminescent type organic electric exciting light-emitting diode that the advantage of high brightness and low-power consume can be provided as the dual-side luminescent type backlight of two-sided display liquid crystal display device, and the characteristics of its double-side can be saved the manufacturing cost of one group of backlight and be reduced the thickness of two-sided display liquid crystal display device.
According to above-mentioned purpose, the invention provides a kind of dual-side luminescent type backlight, comprise one first substrate, have a transparent cathode on it; One second substrate is arranged on respect to first substrate top, has a plurality of transparent anodes on its opposite face; And an organic luminous layer, be folded between transparent cathode and the transparent anode.
Dual-side luminescent type organic electric exciting light-emitting diode backlight comprises one first light-emitting zone and one second light-emitting zone.
Dual-side luminescent type organic electric exciting light-emitting diode backlight is to drive in the passive matrix mode.Transparent cathode and transparent anode are formed with a plurality of list structure, and transparent cathode is vertical mutually with transparent anode.Wherein on the whole the list structure width is 50～1000 microns, and on the whole interval width is 1～50 micron.
The first anode defines one first light-emitting zone, the common definition of this second anode and this first anode one second light-emitting zone.On the whole the spacing width of the first anode and second anode is 1～10 micron.Should will be understood that the material of anode can be tin indium oxide (ITO).
According to above-mentioned purpose, the invention provides a kind of LCD device of double-sided display, comprise one first panel of LCD; One first substrate is arranged on first panel of LCD, has a transparent cathode on it; One second substrate is arranged on respect on first substrate, has a plurality of transparent anodes on its opposite face; One organic luminous layer is folded between transparent cathode and the transparent anode; And one second panel of LCD, be arranged on second substrate, with respect to first panel of LCD.
Between panel of LCD and this transparency carrier, more comprise a light diffusing sheet.The area of first panel of LCD is less than or equal to the area of first panel of LCD.
Description of drawings
Fig. 1 shows the synoptic diagram of known two-sided display liquid crystal display (LCD) panel;
Fig. 2 shows the synoptic diagram of the luminous Organic Light Emitting Diode of known single face as the backlight of LCD device;
The synoptic diagram of the LCD device of Fig. 3 double-sided display of the present invention;
Fig. 4 shows the dual-side luminescent type organic electric exciting light-emitting diode backlight that first embodiment of the invention drives in the passive matrix mode; And
Fig. 5 shows the dual-side luminescent type organic electric exciting light-emitting diode backlight of second embodiment of the invention, and present embodiment is according to the local luminous zone of the size design of display panels, and lights the electrode pin of this light-emitting zone.
Symbol description:
10～the second panel of LCD;
20,40～backlight module;
30～the first panel of LCD;
50～transparency carrier;
60～diffuser plate;
62～diffusion materials;
64～base material;
70～transparent cathode;
80～organic luminous layer;
90～transparent anode;
100～the second panel of LCD;
120,220～diffuser plate;
200～the first panel of LCD;
310,350～transparency carrier;
320,322～transparent cathode;
324～negative electrode pin;
330～organic luminous layer;
340,342～transparent anode;
343,344～anode pin;
160～the first light-emitting zones;
260～the second light-emitting zones.
Embodiment
Below cooperate graphic and preferred embodiment, to illustrate in greater detail the present invention.
As shown in Figure 3, be the synoptic diagram of the LCD device of double-sided display of the present invention.Wherein, the LCD device of double-sided display of the present invention includes one first panel of LCD 200; One dual-side luminescent type backlight 400, it comprises: one first transparency carrier 310, be arranged on first panel of LCD 200, its upper surface has a transparent cathode 320; One second transparency carrier 350 is arranged on respect on first transparency carrier 310, has a transparent anode 340 on its opposite face; One organic luminous layer 330 is folded between negative electrode 320 and the anode 340; Wherein, transparent anode 340, organic luminous layer 330 and transparent cathode 320 are an organic electric exciting light-emitting diode; And one second panel of LCD 100, be arranged on second transparency carrier 350, with respect to first panel of LCD 200.
In a preferred embodiment, between first, second panel of LCD 200,100 and first, second transparency carrier 310,350, more comprise first and second light diffusing sheet 220 and 120.The purpose of diffuser plate is more evenly coordinated at the light that dual-side luminescent type backlight 400 is sent, and can fully be obtained uniform in-plane light even dispersion of light source.
For making the present invention more clear feasible, below utilize first and second embodiment, describe the embodiment of dual-side luminescent type backlight of the present invention in detail.
First embodiment
Fig. 4 shows the dual-side luminescent type organic electric exciting light-emitting diode backlight of first embodiment of the invention, and the organic electric exciting light-emitting diode backlight of present embodiment is to drive in the passive matrix mode.
See also Fig. 4, transparent cathode 322 is formed by a plurality of list structures with transparent anode 342, and negative electrode 322 is vertical mutually with anode 342.On the whole this list structure width is 50～1000 microns, and on the whole interval width is 1～50 micron.
In a preferred embodiment, because backlight is to drive in the passive matrix mode, each light emitting pixel can be controlled individually on the backlight, therefore can select light-emitting zone, to form one first light-emitting zone 160 and one second light-emitting zone 260.The area of the first light-emitting zone 160 on the whole area with second panel of LCD 100 is suitable.And the area summation of first light-emitting zone 160 and second light-emitting zone 260 on the whole the area with first panel of LCD 200 is suitable.
Should will be understood that transparent cathode 322 can be tin indium oxide (ITO) with the material of transparent anode 342, preferable mode is to form with the gold-tinted processing procedure or in evaporation shielding (mask) contraposition mode.
The organic electric exciting light-emitting diode of dot matrix need utilize the gold-tinted processing procedure to make a plurality of transparent cathodes 322 on transparency carrier earlier, utilizes high precision shielding evaporation laminated and a plurality of transparent anodes 342 of exciting light to be arranged on transparent cathode 322 and vertical with transparent cathode 322 again.
As mentioned above, the organic electric exciting light-emitting diode backlight of present embodiment is to drive in the passive matrix mode, and each light emitting pixel can be controlled individually on the backlight, selects light-emitting zone, to form one first light-emitting zone and one second light-emitting zone.When desire showed second panel of LCD 100, then first light-emitting zone 160 was lighted in control; When desire shows first panel of LCD 200, then light first light-emitting zone 160 and second light-emitting zone 260 simultaneously.
Second embodiment
Fig. 5 shows the dual-side luminescent type organic electric exciting light-emitting diode backlight of second embodiment of the invention, and present embodiment is according to the local luminous zone of the size design of display panels, to distinguish electrode control light-emitting zone.
See also Fig. 5, be designed to one first light-emitting zone 160 and one second light-emitting zone 260 according to big young pathbreaker's organic electric exciting light-emitting diode backlight of display panels.The position of first light-emitting zone 160 and size are with respect to second panel of LCD 100.Transparent anode comprises the first anode of first light-emitting zone 160 and the second anode of second light-emitting zone 260, and wherein the first anode and second anode respectively comprise plurality of electrodes pin 343 and 344.On the whole the first anode and second anode spacing width are 1～10 micron.Because electrode structure is simple, makes that the processing procedure of Organic Light Emitting Diode is easy, do not need accurate gold-tinted processing procedure or accurate evaporation shielding (mask) contraposition.
Should will be understood that the material of transparent anode and transparent cathode can be tin indium oxide (ITO), preferable mode is to form with gold-tinted processing procedure or evaporation shielding (mask) contraposition mode.
As mentioned above, the organic electric exciting light-emitting diode backlight of present embodiment system is designed to one first light-emitting zone and one second light-emitting zone with the organic electric exciting light-emitting diode backlight.When desire showed second panel of LCD 100, then first light-emitting zone 160 was lighted in control; When desire shows first panel of LCD 200, then light first light-emitting zone 160 and second light-emitting zone 260 simultaneously.Because electrode structure is simple, makes that the processing procedure of Organic Light Emitting Diode is easy, do not need accurate gold-tinted processing procedure or accurate evaporation shielding (mask) contraposition.
Feature of the present invention and effect are the dual-side luminescent type backlight, have advantages such as high brightness and low-power consume.And the characteristics of its double-side can be saved the manufacturing cost of one group of backlight and be reduced the thickness of two-sided display liquid crystal display device.
In addition,, make that the processing procedure of Organic Light Emitting Diode is easy, do not need accurate gold-tinted processing procedure or accurate evaporation shielding (mask) contraposition because electrode structure is simple.
Claims (10)
1, a kind of dual-side luminescent type backlight comprises:
One first substrate has a transparent cathode on it;
One second substrate is arranged on respect to first substrate top, has a plurality of transparent anodes on its opposite face; And
One organic luminous layer is folded between this transparent cathode and this transparent anode.
2, dual-side luminescent type backlight according to claim 1 is characterized in that: this transparent cathode and this transparent anode are tin indium oxide.
3, dual-side luminescent type backlight according to claim 1 is characterized in that: this transparent cathode and this transparent anode are formed by a plurality of list structures, and this transparent cathode is vertical mutually with this transparent anode.
4, dual-side luminescent type backlight according to claim 3 is characterized in that: these a plurality of transparent cathodes and these a plurality of transparent anodes are to drive in the passive matrix mode.
5, dual-side luminescent type backlight according to claim 3 is characterized in that: this list structure width is 50～1000 microns.
6, dual-side luminescent type backlight according to claim 3 is characterized in that: this list structure interval width is 1～50 micron.
7, dual-side luminescent type backlight according to claim 1 is characterized in that: these a plurality of transparent anodes comprise a first anode and a second anode, wherein this first anode and this second anode apart from one another by and respectively comprise a plurality of electrode pins.
8, dual-side luminescent type backlight according to claim 7 is characterized in that: this first anode and second anode spacing width are 1～10 micron.
9, dual-side luminescent type backlight according to claim 7 is characterized in that: this first anode defines one first light-emitting zone, the common definition of this second anode and this first anode one second light-emitting zone.
10, a kind of LCD device of double-sided display comprises:
One first panel of LCD;
One first substrate is arranged on first panel of LCD, has a transparent cathode on it;
One second substrate is arranged on respect on first substrate, has a plurality of transparent anodes on its opposite face;
One organic luminous layer is folded between this transparent cathode and this transparent anode; And
One second panel of LCD is arranged on second substrate, with respect to first panel of LCD.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100085171A CN100350314C (en) | 2004-03-11 | 2004-03-11 | Liquid crystal display unit with double-faced display and double-faced luminous back light panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100085171A CN100350314C (en) | 2004-03-11 | 2004-03-11 | Liquid crystal display unit with double-faced display and double-faced luminous back light panel |
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| Publication Number | Publication Date |
|---|---|
| CN1667465A CN1667465A (en) | 2005-09-14 |
| CN100350314C true CN100350314C (en) | 2007-11-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2004100085171A Expired - Fee Related CN100350314C (en) | 2004-03-11 | 2004-03-11 | Liquid crystal display unit with double-faced display and double-faced luminous back light panel |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103091898B (en) * | 2013-02-06 | 2015-12-02 | 京东方科技集团股份有限公司 | LCDs and preparation method thereof, display device |
| 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 |
| CN111063814A (en) * | 2019-12-10 | 2020-04-24 | 深圳市华星光电半导体显示技术有限公司 | Perovskite light-emitting device, preparation method thereof and display |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07134558A (en) * | 1993-11-08 | 1995-05-23 | Idemitsu Kosan Co Ltd | Organic electroluminescent display device |
| JPH10241862A (en) * | 1996-12-26 | 1998-09-11 | Toray Ind Inc | Organic electroluminescent element |
| WO2002073306A1 (en) * | 2001-03-12 | 2002-09-19 | Universita' Degli Studi Di Roma 'la Sapienza' | Liquid crystal display panel |
| CN1403852A (en) * | 2001-09-06 | 2003-03-19 | 精工爱普生株式会社 | Light conduction apparatus, electro-optical device and electronic equipment |
| US6611097B1 (en) * | 1999-07-21 | 2003-08-26 | Matsushita Electric Industrial Co., Ltd. | Electroluminescent element comprising reduced number of parts and lighting unit having the same |
-
2004
- 2004-03-11 CN CNB2004100085171A patent/CN100350314C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07134558A (en) * | 1993-11-08 | 1995-05-23 | Idemitsu Kosan Co Ltd | Organic electroluminescent display device |
| JPH10241862A (en) * | 1996-12-26 | 1998-09-11 | Toray Ind Inc | Organic electroluminescent element |
| US6611097B1 (en) * | 1999-07-21 | 2003-08-26 | Matsushita Electric Industrial Co., Ltd. | Electroluminescent element comprising reduced number of parts and lighting unit having the same |
| WO2002073306A1 (en) * | 2001-03-12 | 2002-09-19 | Universita' Degli Studi Di Roma 'la Sapienza' | Liquid crystal display panel |
| CN1403852A (en) * | 2001-09-06 | 2003-03-19 | 精工爱普生株式会社 | Light conduction apparatus, electro-optical device and electronic equipment |
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| CN1667465A (en) | 2005-09-14 |
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Granted publication date: 20071121 Termination date: 20190311 |
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