CN102082161B - Organic electroluminescent device, mask plate, luminescent module and application thereof - Google Patents
Organic electroluminescent device, mask plate, luminescent module and application thereof Download PDFInfo
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- CN102082161B CN102082161B CN2010102865794A CN201010286579A CN102082161B CN 102082161 B CN102082161 B CN 102082161B CN 2010102865794 A CN2010102865794 A CN 2010102865794A CN 201010286579 A CN201010286579 A CN 201010286579A CN 102082161 B CN102082161 B CN 102082161B
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Abstract
The invention provides an organic electroluminescent device, a luminescent module and application thereof. The organic electroluminescent device comprises a base plate as well as a working zone and a non-working zone which are positioned on the base plate, wherein the working zone comprises a display zone, a lead zone and an IC (Integrated Circuit) binding zone, and a nontransparent shielding layer is arranged on the non-working zone and not connected with the working zone. The non-working zone is provided with the shielding layer so that light rays emitted by a luminescent layer and refracted in an OLED (Organic Light Emitting Diode) screen body can not be transmitted out of the screen body and is shielded without influencing the normal use of the luminescent layer. Meanwhile, as the shielding layer and an auxiliary electrode are simultaneously prepared, a new process step is not increased so that the organic electroluminescent device is convenient for preparation. A mask plate designed for manufacturing the shielding layer is provided with a figure for preparing the shielding layer in the non-working zone.
Description
Technical field
The present invention relates to organic electroluminescence device, be meant that specifically a kind of screen body structure of organic electroluminescence device improves.
Background technology
The organic electroluminescent principle is meant and adopts organic material as luminescent layer, is provided with cathode layer and anode layer in the luminescent layer both sides, electric current on two interpolars are logical, and when electric current passed through luminescent layer, the organic material of luminescent layer will be luminous.People develop organic electroluminescence device (Organic Light Emitting Diode is hereinafter to be referred as OLED) according to this principle.OLED is with respect to traditional liquid crystal display device, and body is thin, advantages such as preparation technology is simple, luminescent material solidifies entirely, device flexibility have caused people's extensive concern but have, and increasing OLED is applied to showing and lighting field.
Existing OLED device is except that comprising anode layer, luminescent layer, cathode layer; Also comprise insulating barrier and insulated column layer; Insulating barrier and insulated column layer are divided into one by one little luminous point with luminescent layer; These luminous points are exactly pixel, and different pixels point carries out the luminous display graphics of just having formed as requested.The last zone with luminescent layer of OLED is a light-emitting zone, and electric current flows to the luminous zone through the lead-in wire outside the luminous zone, and the luminous zone is called overlap with the place of lead-in wire overlap joint.
Fig. 1 is existing OLED screen body structure sketch map, and it is made up of substrate and each zone that is positioned on the substrate, and comprise on the substrate: the viewing area A that the luminous point array is formed, negative electrode follow direction and arrange, and anode is arranged along column direction; Both sides go between regional B1 and B2, corresponding respectively odd-numbered line negative electrode and the even number line negative electrode that connects the viewing area; The downside lead-in wire region D that is connected with the anode of viewing area; Go between regional B1 and B2, downside lead-in wire region D of both sides all is aggregated into IC (integrated circuit) zone C.
Fig. 2 is along Fig. 1 direction of arrow view, and light that viewing area A sends 1 is launched by base plate bottom, and people collect light 1, see the display pattern on the screen body.But can emit beam 2 after the groove of the packed lid of light that luminescent layer the sends refraction, this part light can make OLED screen body non-display area bright line or speck occur, influence the attractive in appearance of OLED screen body, and to be mistaken as be bad the screen or display abnormality.Therefore, be necessary to remove the bright line that light 2 causes.
Summary of the invention
The objective of the invention is to overcome above-mentioned defective, a kind of organic electroluminescence device is provided, illuminating module and application thereof.
Above-mentioned purpose of the present invention is achieved through following technical scheme:
A kind of organic electroluminescence device comprises, substrate; Be positioned at working region and inoperative zone on the substrate, said working region comprises the viewing area, the lead-in wire zone; The fixed zone of IC nation; Setting prevents the shielding layer that the refract light of this device sends from the inoperative zone on the said inoperative zone, and said shielding layer is light tight, and said shielding layer is not connected with said working region.
Wherein, said lead-in wire zone comprises plurality of leads, and said lead-in wire is processed by auxiliary electrode material at least, and said shielding layer is formed by masking material, and said auxiliary electrode material is identical with said masking material, said shielding layer not with said auxiliary electrode conducting.
Wherein, said masking material is MoAlMo.
Wherein, said masking material is Cr.
Wherein, said working region is positioned at a surface of substrate, comprises organic layer, first electrode and second electrode, and said shielding layer also is positioned at said surface.
Wherein, said inoperative zone with shielding layer surrounds said inoperative zone.
Wherein, said lead-in wire zone comprises first contact conductor zone and second contact conductor zone, and said inoperative zone with shielding layer is between said first contact conductor zone and the said second contact conductor zone.
Wherein, said shielding layer is identical with said lead thicknesses.
The present invention also proposes a kind of mask plate for preparing above-mentioned organic electroluminescence device, comprises the working region mask graph, is used to prepare the lead-in wire in lead-in wire zone and first electrode of viewing area, also comprises inoperative zone mask graph, is used to prepare said shielding layer.
Wherein, the regional mask graph of said inoperative is planar.
Wherein, the regional mask graph of said inoperative is a strip.
The present invention also proposes a kind of organic electroluminescent module, comprises drive unit, FPC (Flexible PrintedCircuit, flexible circuit board), above-mentioned organic electroluminescence device.
The present invention also proposes a kind of mobile communication equipment, comprises communicator and display unit, and said display unit is above-mentioned organic electroluminescent module.
The present invention makes unwanted light to be blocked through in the inoperative zone shielding layer being set, and the light that does not disturb the working region to send does not influence normal use.Simultaneously shielding layer prepares with first electrode, auxiliary electrode simultaneously, does not increase new processing step, and the mask plate that designs for the manufacturing shielding layer that the present invention proposes is provided for preparing the figure of shielding layer in the inoperative zone.
Description of drawings
Fig. 1 is existing OLED device screen body structure;
Fig. 2 is along Fig. 1 direction of arrow view;
Fig. 3 is the structural representation of organic electroluminescence device of the present invention;
Fig. 4 is the view of observing along Fig. 3 direction of arrow;
Fig. 5 is the position view of shielding layer E of the present invention;
The shielding layer sketch map that Fig. 6 forms for bar pattern;
Fig. 7 is the shielding layer sketch map that planar figure is formed;
Fig. 8 is the pictorial diagram of the mask plate of the planar figure shielding layer of preparation.
Embodiment
Through specific embodiment the present invention is done further detailed description below.
Fig. 3 is the structural representation of organic electroluminescence device of the present invention, and substrate comprises upper surface and lower surface, and each on the viewing area layer all is arranged on the upper surface of substrate with the non-display area shielding layer.Comprise viewing area A on the substrate, viewing area A comprises anode, organic layer, negative electrode, and first electrode is an anode, and second electrode is a negative electrode; The first contact conductor region D is connected with the anode of viewing area; Second contact conductor area B 1 and the B2 is connected with the even number line negative electrode with the odd-numbered line of viewing area A respectively; IC nation decides zone C, connects integrated circuit, drives organic electroluminescence device and shows.
Viewing area A, the first contact conductor region D, the second contact conductor area B 1 and B2, IC nation decide zone C and form the working region.The function that luminous demonstration, signal and power supply transmit is born in the working region.Also comprise the inoperative zone on the substrate, it is positioned at the gap of periphery, viewing area and working region, and the inoperative zone is used to protect the working region not receive extraneous infringement.
One deck shielding layer E is set on the inoperative zone, and shielding layer is processed by semi-transparent or light-proof material, and shielding layer E shelters from the inoperative zone, therefore just can not penetrate from the inoperative zone by light 2.The working region is not connected mutually with the inoperative zone, and the shielding layer E in inoperative zone can not be connected with lead-in wire yet, and working region and shielding layer E separate.
Fig. 4 is the view of observing along Fig. 3 direction of arrow, and shielding layer covers the part beyond the viewing area, stops light 2 to penetrate.
Fig. 5 is the position view on substrate of shielding layer E of the present invention, comprising being positioned at the first peripheral shielding layer E1 of working region, is positioned at the second shielding layer E2 between the second contact conductor area B 1 (or B2) and the first contact conductor region D.Shielding layer E has filled up the whole or most area in substrate inoperative zone.
The present invention adopts photoetching process to process; During making and the auxiliary electrode of OLED and anode layer carry out synchronously; Promptly generate anode (being generally the ITO tin indium oxide) and auxiliary electrode (adopting MoAlMo molybdenum aluminium molybdenum or Cr chromium usually) time prepares synchronously in photoetching; Adopt auxiliary electrode as light-proof material, the shielding layer material of processing identical with the thickness of lead material (comprise auxiliary electrode at least, can also comprise ITO).During preparation, adopt improved mask plate, this mask plate should comprise the visuals of working region, also should comprise the visuals of the shielding layer in inoperative zone.During photoetching, shielding layer and auxiliary electrode photoetching simultaneously moulding.Because shielding layer is not connected with the working region, though shielding layer and auxiliary electrode prepare simultaneously, shielding layer not with auxiliary electrode (male or female) conducting.
Therefore, when making anode and auxiliary electrode, prepare shielding layer, do not increased the processing step of making shielding layer newly.
Shielding layer is lighttight material, also can adopt the way preparation that light-proof material is coated in substrate surface.
Shielding layer E can make multiple figure, like the shielding layer of being made up of a plurality of bar patterns, like Fig. 6, also can be made up of planar figure, like Fig. 7.
The figure of shielding layer is different, and corresponding mask plate is also different.Mask plate like bar pattern also is the bar shaped engraved structure accordingly.The mask plate of planar shielding layer figure (the working region figure is not shown) is prepared the shielding layer figure, shielding layer mask plate such as Fig. 8.
The present invention proposes the organic electroluminescent module, comprises, and drive unit, FPC (flexible print circuit board) and above-mentioned organic electroluminescence device, FPC connects drive unit and organic electroluminescence device, and drive unit drives this organic electroluminescence device and shows.
This organic electroluminescent module can be applied to the display unit of mobile communication equipment, and mobile communication equipment also should comprise communicator.
The present invention is through being provided with shielding layer in the inoperative zone, makes luminescent layer can not be transmitted into the screen external by the light that in OLED screen body, reflects, and shelters from and do not influence normal use.Shielding layer and auxiliary electrode prepare simultaneously simultaneously, do not increase new processing step, prepare easy.The present invention propose for making the mask plate that shielding layer designs, be provided for preparing the figure of shielding layer in the inoperative zone.
Though the present invention is to disclose as above than preferable embodiment; Yet it is not in order to limit the present invention; Anyly be familiar with this technological personage, do not breaking away from the spirit and scope of the present invention, when doing various changes and retouching; Therefore, protection scope of the present invention is as the criterion when the claim with application defines.
Claims (13)
1. an organic electroluminescence device comprises substrate; Be positioned at working region and inoperative zone on the substrate, said working region comprises the viewing area, the lead-in wire zone; The fixed zone of IC nation, the last zone with luminescent layer of OLED is a light-emitting zone, insulating barrier and insulated column layer are divided into one by one little luminous point with luminescent layer; These luminous points are exactly pixel, it is characterized in that, setting prevents the shielding layer that the refract light of this device sends from the inoperative zone on the said inoperative zone; Said shielding layer is light tight, and said shielding layer is not connected with said working region.
2. organic electroluminescence device as claimed in claim 1; It is characterized in that; Said lead-in wire zone comprises plurality of leads, and said lead-in wire is processed by auxiliary electrode material at least, and said shielding layer is formed by masking material; Said auxiliary electrode material is identical with said masking material, said shielding layer not with said auxiliary electrode conducting.
3. organic electroluminescence device as claimed in claim 2 is characterized in that, said masking material is MoAlMo.
4. organic electroluminescence device as claimed in claim 2 is characterized in that, said masking material is Cr.
5. organic electroluminescence device as claimed in claim 1 is characterized in that, said working region is positioned at a surface of substrate, comprises organic layer, first electrode and second electrode, and said shielding layer also is positioned at said surface.
6. organic electroluminescence device as claimed in claim 1 is characterized in that, the inoperative zone at said shielding layer place surrounds said working region.
7. organic electroluminescence device as claimed in claim 1; It is characterized in that; Said lead-in wire zone comprises first contact conductor zone and second contact conductor zone, and the said shielding layer of part is between said first contact conductor zone and the said second contact conductor zone.
8. organic electroluminescence device as claimed in claim 1 is characterized in that, said shielding layer is identical with said lead thicknesses.
9. mask plate for preparing organic electroluminescence device as claimed in claim 1; Comprise the working region mask graph, be used to prepare the lead-in wire in lead-in wire zone and first electrode of viewing area, it is characterized in that; Also comprise inoperative zone mask graph, be used to prepare said shielding layer.
10. mask plate as claimed in claim 9 is characterized in that, said inoperative zone mask graph is planar.
11. mask plate as claimed in claim 9 is characterized in that, said inoperative zone mask graph is a strip.
12. an organic electroluminescent module comprises, drive unit, and FPC is characterized in that, comprises organic electroluminescence device as claimed in claim 1.
13. a mobile communication equipment comprises communicator and display unit, it is characterized in that, said display unit is an organic electroluminescent module as claimed in claim 12.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010102865794A CN102082161B (en) | 2010-09-16 | 2010-09-16 | Organic electroluminescent device, mask plate, luminescent module and application thereof |
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| CN2010102865794A CN102082161B (en) | 2010-09-16 | 2010-09-16 | Organic electroluminescent device, mask plate, luminescent module and application thereof |
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| CN102082161B true CN102082161B (en) | 2012-11-07 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103176641A (en) * | 2011-12-25 | 2013-06-26 | 宸鸿科技(厦门)有限公司 | Touch panel and manufacturing method thereof |
| CN103700693B (en) * | 2013-12-30 | 2018-10-09 | 固安翌光科技有限公司 | A kind of organic light emitting display |
| CN104241328B (en) * | 2014-08-20 | 2017-03-01 | 京东方科技集团股份有限公司 | PMOLED array base palte and preparation method thereof, display device and mask plate |
| CN106206669B (en) | 2016-08-31 | 2018-12-07 | 昆山维信诺科技有限公司 | Wiring method and abnormity OLED product for special-shaped OLED product |
| CN108644628B (en) | 2018-06-06 | 2024-03-29 | 北京夏禾科技有限公司 | High-yield low-cost large-area flexible OLED (organic light emitting diode) lighting module |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101371288A (en) * | 2006-11-13 | 2009-02-18 | 索尼株式会社 | Display device, method for driving electro-optical element, and electronic device |
| CN201859895U (en) * | 2010-09-16 | 2011-06-08 | 昆山维信诺显示技术有限公司 | Organic electroluminescent device, mask plate, luminescent module and application thereof |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101371288A (en) * | 2006-11-13 | 2009-02-18 | 索尼株式会社 | Display device, method for driving electro-optical element, and electronic device |
| CN201859895U (en) * | 2010-09-16 | 2011-06-08 | 昆山维信诺显示技术有限公司 | Organic electroluminescent device, mask plate, luminescent module and application thereof |
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Owner name: KUNSHAN VISIONOX TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: WEIXINNUO DISPLAY TECH CO., LTD. Effective date: 20140401 Owner name: TSINGHUA UNIVERSITY Free format text: FORMER OWNER: TSINGHUA UNIVERSITY WEIXINNUO SCIENCE AND TECHNOLOGY CO., LTD., BEIJING Effective date: 20140401 |
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Effective date of registration: 20140401 Address after: 215300 Feng Feng Road, Kunshan hi tech Zone, Jiangsu, Kunshan 188 Patentee after: KUNSHAN VISIONOX TECHNOLOGY CO., LTD. Patentee after: Tsinghua University Address before: 215300 Kunshan high tech Zone, Jiangsu Province, Feng Feng Road, No. 188, No. Patentee before: Weixinnuo Display Tech Co., Ltd. Patentee before: Tsinghua University Patentee before: Weixinnuo Science and Technology Co., Ltd., Beijing |
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Address after: 215300 Feng Feng Road, Kunshan hi tech Zone, Jiangsu, Kunshan 188 Patentee after: Suzhou Qingyue Photoelectric Technology Co., Ltd Patentee after: TSINGHUA University Address before: 215300 Feng Feng Road, Kunshan hi tech Zone, Jiangsu, Kunshan 188 Patentee before: Kunshan Visionox Technology Co.,Ltd. Patentee before: TSINGHUA University |