CN104900677A - Organic electroluminescent device, display device and lighting device - Google Patents
Organic electroluminescent device, display device and lighting device Download PDFInfo
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- CN104900677A CN104900677A CN201510243458.4A CN201510243458A CN104900677A CN 104900677 A CN104900677 A CN 104900677A CN 201510243458 A CN201510243458 A CN 201510243458A CN 104900677 A CN104900677 A CN 104900677A
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Abstract
The present invention discloses an organic electroluminescent device which comprises a plurality of anode lines which are formed on a substrate and are mutually parallelly distributed and are vertically connected to an anode binding lead wire, and a plurality of cathode lines which are formed on the anode lines and are mutually parallelly distributed. The cathode lines are parallel to the anode lines with an overlapped area, and the cathode lines are vertically connected to a cathode binding lead wire. The device also comprises a plurality of light emitting areas which are defined in the overlapped area of the cathode lines and the anode lines. The invention also discloses a display device or lighting device with the use of the organic electroluminescent device. According to the organic electroluminescent device, the anode lines and the cathode lines are parallelly arranged with the overlapped area and then are vertically connected to the corresponding binding lead wires through running wires as the anode and cathode of the device, the trace length is greatly reduced, the trace resistance is reduced, the resistance uniformity between the anode lines and the cathode lines is ensured, and the photoelectric conversion efficiency and brightness uniformity of the device are improved.
Description
Technical field
A kind of organic electroluminescence device, display unit and lighting device are the present invention relates to.
Background technology
Organic electroluminescent (OLED) Display Technique has self luminous characteristic, adopt very thin coating of organic material and glass substrate, when have electric current by time, these organic materials will be luminous, and OLED display screen curtain visible angle is large, and electric energy can be saved.At present, OLED has the application of more advantage in display application field more, has important using value equally in illumination application.
Please refer to Fig. 1,2, Conventional OLED devices needs to realize local and lights, make cathode line 1 ' (COM line) and anode line (the SEG line of device, figure does not show) single pixel must be intersected to form, the same limit again negative electrode and anode being guided to substrate goes out pin, need long cabling 2 ' that COM line or SEG line are led to out pin limit, cabling 2 ' different in size is also difficult to ensure device brightness uniformity; Meanwhile, because COM line or SEG line itself have larger resistance, photoelectric conversion efficiency and the brightness uniformity of OLED can be reduced.At present, directly the line design of OLED display device being directly used in illumination etc. needs the line design of the device of full frame luminescence to be irrational.
Summary of the invention
In order to solve above-mentioned the deficiencies in the prior art, the invention provides a kind of organic electroluminescence device, this organic electroluminescence device is by cathode line (COM line) and anode line (SEG line) Parallel Design, being equivalent to whole piece COM line (or SEG line) is one " pixel ", gone between vertical connection with corresponding bindings bit respectively by cabling again, as the both positive and negative polarity of organic electroluminescence device, substantially reduce track lengths, reduce trace resistances, and ensure that the resistance homogeneity between anode line and cathode line respectively, both the photoelectric conversion efficiency of device can have been improved, the brightness uniformity of device can be improved again.Present invention also offers a kind of display unit or the lighting device that use this organic electroluminescence device.
Technical problem to be solved by this invention is achieved by the following technical programs:
A kind of organic electroluminescence device, comprising:
Many anode lines, it is formed on substrate, and many anode lines are arranged mutually parallel, and described anode line is vertically connected at anode bindings bit lead-in wire;
Many cathode line, it is formed on described anode line, and many cathode line are arranged mutually parallel, parallel with described anode line and have overlapping region, and described cathode line is vertically connected at negative electrode bindings bit lead-in wire;
Multiple light-emitting zone, it is limited to the overlapping region of described anode line and cathode line.
Preferably, the overlapping region of described anode line and cathode line is for partly overlapping or whole overlapping region.
Preferably, described anode bindings bit lead-in wire goes between with negative electrode bindings bit and is oppositely arranged on the dual-side of described substrate.
Preferably, described anode line or cathode line to be gone between with anode bindings bit by lead terminal or negative electrode bindings bit goes between and is connected.
Preferably, the width of described anode line or cathode line is 0.1 ~ 3mm.
Preferably, many anode lines are parallel arranges at equal intervals; Many cathode line are parallel arranges at equal intervals.Adjacent two anode lines or cathode line be spaced apart 5 μm ~ 50 μm.
Preferably, described anode line and cathode line have identical area.
Preferably, described anode line and cathode line have identical length.
A kind of display unit, comprises above-mentioned organic electroluminescence device.
A kind of lighting device, comprises above-mentioned organic electroluminescence device.
The present invention has following beneficial effect:
This organic electroluminescence device is by cathode line (COM line) and anode line (SEG line) Parallel Design, being equivalent to whole piece COM line (or SEG line) is one " pixel ", guided into two opposite side of substrate more respectively, as the both positive and negative polarity of organic electroluminescence device by cabling; By drawing out the relative dual-side of pin to substrate by symmetrical respectively to anode line and cathode line, reducing lead resistance to reduce path pressure drop and power consumption, improving photoelectric conversion efficiency and the brightness uniformity of organic electroluminescence device; The cabling that the cabling simultaneously gone between due to every root cathode line to negative electrode bindings bit and anode line go between to anode bindings bit has same length, and the brightness uniformity of this organic electroluminescence device also can obtain certain raising.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing display of organic electroluminescence device;
Fig. 2 is the lead-in wire schematic wiring diagram of existing display of organic electroluminescence device;
Fig. 3 is the structural representation of organic electroluminescence device of the present invention;
Fig. 4 is the structure cutaway view of organic electroluminescence device of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the present invention will be described in detail.
Please refer to Fig. 3,4, which show a kind of organic electroluminescence device, comprising: substrate 1, the cover plate 5 be oppositely arranged with substrate 1; Between substrate 1 and cover plate 5 and be provided with on substrate 1 many parallel arrangements anode line 2, be positioned on anode line 2 and many cathode line 3 of parallel arrangement and be limited at multiple light-emitting zones 4 of overlapping region of described anode line 2 and cathode line 3; Wherein, described anode line 2 is parallel to each other with cathode line 3, and anode line 2 described in every bar is vertically connected at an anode bindings bit lead-in wire 21; Cathode line 3 described in every bar is vertically connected at a negative electrode bindings bit lead-in wire 31.
Described anode line 2 can be the region that partly overlaps with the overlapping region of cathode line 3, also can be whole overlapping region.Described cathode line 3 and anode line 2 Parallel Design are had overlapping region, and the overlapping region being equivalent to whole piece is one " pixel ", as a light-emitting zone 4.Described anode line 2 and cathode line 3 preferably have identical area or identical width, and the width of described anode line 2 or cathode line 3 preferably but be not defined as 0.1 ~ 3mm.Many anode line 2 preferred parallel is arranged at equal intervals, and many cathode line 3 preferred parallel are arranged at equal intervals.The interval of adjacent two anode lines 2 or cathode line 3 is preferably 5 μm ~ 50 μm, but is not limited to this.
Described anode line 2 and cathode line 3 respectively by lead terminal 22 and anode bindings bit go between 21 and negative electrode bindings bit go between and 31 to be connected.Preferably, described anode bindings bit lead-in wire 21 and negative electrode bindings bit go betweens 31 dual-sides being oppositely arranged on substrate 1, and described anode line 2 and cathode line 3 respectively symmetrical pin of drawing out go between 31 to the anode bindings bit lead-in wire 21 of the relative dual-side of substrate 1 and negative electrode bindings bit.Compared with prior art, this organic electroluminescence device will cause on corresponding bindings bit lead-in wire by the cabling of the shortest mode after anode line 2 and cathode line 3 Parallel Design, shorten track lengths and reduce trace resistances to reduce path pressure drop and power consumption, improve photoelectric conversion efficiency and the brightness uniformity of organic electroluminescence device.
The material of described substrate 1 and cover plate 5 can be flexibility or rigidity, can also be plastics or glass, but be not limited to this.The present invention preferably adopts the material with high transparent as substrate 1 material.During specific implementation, after relative with cover plate 5 for substrate 1 laminating, be tightly connected into a closed cavity, light-emitting zone 4 is positioned at this closed cavity.
The material of described anode line 2 can adopt inorganic material or organic conductive polymer; Inorganic material can be ITO or IZO, can also be the metal that the work function such as the metal oxides such as zinc oxide or gold, copper, silver is higher; The material of organic conductive polymer can be polythiophene/polyvinylbenzenesulfonic acid sodium or polyaniline; But be not limited to this.Described anode line 2 is formed on described substrate 1 by methods such as sputtering or ion platings, and described anode line 2 material is preferably transparent electric conducting material, and the present invention preferably adopts ITO as anode line 2 material.
Described light-emitting zone 4 is as the functional layer for luminescence, and it at least comprises organic luminous layer, can also comprise electron transfer layer, hole transmission layer etc.Described functional layer is formed on described anode line 2 by modes such as evaporation, coating, ink jet printing or printings, and described organic luminous layer can be white-light emitting layer or other monochrome light emission layers, can also be colourama luminescent layer.Described functional layer preferably adopts transparent material to be formed.
Described cathode line 3 is formed on the light-emitting layer by sputtering or vapour deposition or ion beam depositing or electron beam deposition or laser ablation methods.Described cathode line 3 preferably has the material of light reflex, and it can be selected from but not be defined as by silver (Ag), aluminium (Al), chromium (Cr), gold (Au), magnesium (Mg) and the metal or alloy containing magnesium alloy etc. with high reflectance.The preferred Al of the present invention is as cathode line 3 material.
Display unit provided by the invention and lighting device have all used as above organic electroluminescence device of the present invention.The display unit that the present invention relates to and the pattern of lighting device, structure are not particularly limited, and organic electroluminescence device of the present invention can be used to assemble according to well-established law.
The above embodiment only have expressed embodiments of the present invention; it describes comparatively concrete and detailed; but therefore can not be interpreted as the restriction to the scope of the claims of the present invention; in every case the technical scheme adopting the form of equivalent replacement or equivalent transformation to obtain, all should drop within protection scope of the present invention.
Claims (10)
1. an organic electroluminescence device, comprising:
Many anode lines, it is formed on substrate, and many anode lines are arranged mutually parallel, and described anode line is vertically connected at anode bindings bit lead-in wire;
Many cathode line, it is formed on described anode line, and many cathode line are arranged mutually parallel, parallel with described anode line and have overlapping region, and described cathode line is vertically connected at negative electrode bindings bit lead-in wire;
Multiple light-emitting zone, it is limited to the overlapping region of described anode line and cathode line.
2. organic electroluminescence device according to claim 1, is characterized in that, the overlapping region of described anode line and cathode line is for partly overlapping or whole overlapping region.
3. organic electroluminescence device according to claim 1, is characterized in that, described anode bindings bit lead-in wire goes between with negative electrode bindings bit and is oppositely arranged on the dual-side of described substrate.
4. organic electroluminescence device according to claim 1, is characterized in that, described anode line or cathode line to be gone between with anode bindings bit by lead terminal or negative electrode bindings bit goes between is connected.
5. organic electroluminescence device according to claim 1, is characterized in that, the width of described anode line or cathode line is 0.1 ~ 3mm.
6. organic electroluminescence device according to claim 1, is characterized in that, adjacent two anode lines or cathode line be spaced apart 5 μm ~ 50 μm.
7. organic electroluminescence device according to claim 1, is characterized in that, many anode lines are parallel arranges at equal intervals; Many cathode line are parallel arranges at equal intervals.
8. organic electroluminescence device according to claim 1, is characterized in that, described anode line and cathode line have identical length.
9. a display unit, comprises organic electroluminescence device according to claim 1.
10. a lighting device, comprises organic electroluminescence device according to claim 1.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510243458.4A CN104900677A (en) | 2015-05-14 | 2015-05-14 | Organic electroluminescent device, display device and lighting device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510243458.4A CN104900677A (en) | 2015-05-14 | 2015-05-14 | Organic electroluminescent device, display device and lighting device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107275510A (en) * | 2017-04-20 | 2017-10-20 | 固安翌光科技有限公司 | A kind of Organnic electroluminescent device and preparation method thereof |
| CN107316612A (en) * | 2017-07-11 | 2017-11-03 | 深圳市华星光电半导体显示技术有限公司 | A kind of OLED display panel and OLED display |
| WO2019085509A1 (en) * | 2017-10-31 | 2019-05-09 | 云谷（固安）科技有限公司 | Display panel and terminal |
| US10522607B2 (en) | 2017-07-11 | 2019-12-31 | Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd | OLED display panel and OLED display apparatus |
| CN115762417A (en) * | 2022-11-25 | 2023-03-07 | 武汉天马微电子有限公司 | Display panel and display device |
| WO2023050052A1 (en) * | 2021-09-28 | 2023-04-06 | 京东方科技集团股份有限公司 | Display substrate and display apparatus |
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| US8466457B2 (en) * | 2008-04-15 | 2013-06-18 | Novaled Ag | Light-emitting organic component, arrangement having a plurality of light-emitting organic components and electrode structure |
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| CN204577428U (en) * | 2015-05-14 | 2015-08-19 | 信利半导体有限公司 | Organic electroluminescence device, display unit and lighting device |
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| CN1265340C (en) * | 2000-07-25 | 2006-07-19 | 株式会社半导体能源研究所 | Display device |
| US8466457B2 (en) * | 2008-04-15 | 2013-06-18 | Novaled Ag | Light-emitting organic component, arrangement having a plurality of light-emitting organic components and electrode structure |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107275510A (en) * | 2017-04-20 | 2017-10-20 | 固安翌光科技有限公司 | A kind of Organnic electroluminescent device and preparation method thereof |
| CN107316612A (en) * | 2017-07-11 | 2017-11-03 | 深圳市华星光电半导体显示技术有限公司 | A kind of OLED display panel and OLED display |
| US10522607B2 (en) | 2017-07-11 | 2019-12-31 | Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd | OLED display panel and OLED display apparatus |
| WO2019085509A1 (en) * | 2017-10-31 | 2019-05-09 | 云谷（固安）科技有限公司 | Display panel and terminal |
| WO2023050052A1 (en) * | 2021-09-28 | 2023-04-06 | 京东方科技集团股份有限公司 | Display substrate and display apparatus |
| CN115762417A (en) * | 2022-11-25 | 2023-03-07 | 武汉天马微电子有限公司 | Display panel and display device |
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