CN103035666A - Panel of large-sized flexible flat-panel display and manufacture method thereof - Google Patents
Panel of large-sized flexible flat-panel display and manufacture method thereof Download PDFInfo
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- CN103035666A CN103035666A CN2012105811634A CN201210581163A CN103035666A CN 103035666 A CN103035666 A CN 103035666A CN 2012105811634 A CN2012105811634 A CN 2012105811634A CN 201210581163 A CN201210581163 A CN 201210581163A CN 103035666 A CN103035666 A CN 103035666A
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Abstract
The invention discloses a panel of a large-sized flexible flat-panel display and a manufacture method of the panel, and belongs to the technical field of panel display manufacturing. The panel of the large-sized flexible flat-panel display is formed by a flat metal substrate layer, an anode electrode layer, a hole transporting layer, a luminescent layer, an electronic transporting layer and a cathode electrode layer in sequence in a an overlying mode. The panel provides a flat metal substrate, and an anode electrode and a cathode electrode are made of graphene. By utilizing the excellent electrical performance of the graphene, the anode electrode and the cathode electrode are formed, indium tin oxide (ITO) is replaced, the hole transporting layer, the luminescent layer and the electronic transporting layer are sequentially formed on the anode electrode, and finally the cathode electrode prepared through graphene films is formed on the electronic transporting layer.
Description
Technical field
The invention belongs to flat panel display manufacturing technology field, be specifically related to a kind of panel of large scale flexible flat panel display device.
Background technology
The flexible demonstration refers to that a class uses flexible base, board, can manufacture ultra-thin, super large, flexible display device or Display Technique.Current, the technology that is widely used in the flexible display field comprises the flexible organic light emitting diode display (OLED) of reflective flexible liquid crystal display (LCD), flexible electrophoretic display (EPD) and self-luminous.Wherein, flexible organic electroluminescent device is called the New flat panel display of " dreamlike display ", and it says with respect to existing traditional display terminal because of it, having can be curling, the angle of visual field large, thickness can realize ultra-thin, weight is lighter, and is and active luminous.Super brightness, structure of whole solid state, against shock be strong, in distinguishing features such as high temperature, low temperature environment can both work.
Generally, the material of the nesa coating that two plate electrodes (cathode electrode and anode electrode) adopt mainly is tin indium oxide (ITO) material, because the price of indium is high and supply is limited, the fragile and flexible shortage of ITO layer and expensive layer deposition require vacuum; In addition, when stress reached 4%, this electrically conducting transparent Film conductivity was damaged.All deficiencies of material selectivity have had a strong impact on display device application commercially, particularly the application aspect flexibility and large scale.
Graphene is a kind of New Two Dimensional planar structure material with carbon element.Since the self-discovery, its unique molecular structure and excellent physical property have caused the extensive concern of scholar and industrial circle.At present, grapheme material is shown up prominently in the design of organic electro-optic device with in using, and especially, the application of Graphene aspect electrode can replace ITO at present.Sukang Bae etc. [
Nature Nanotechnology, 2010,
5: 574-578] reported and adopted chemical vapour deposition technique at the synthetic graphene film of copper sheet, by Scroll transfer and wet-chemical doping method it has successfully been transferred on the flexible polymer substrate again, thereby prepared 30 inches square individual layer large tracts of land transparent graphene conductive films.
Summary of the invention
The objective of the invention is to have proposed the graphene film organic light emitting display for the flexible deficiency that overcomes existing organic light emitting display anode electrode and cathode electrode causes the difficult shortcoming that the large scale flexible flat is commercially produced that forms.
For achieving the above object, technical scheme of the present invention is: a kind of panel for the demonstration of large scale flexible flat, be specifically related to Graphene organic electroluminescence device display device (OLED), comprise a smooth metal substrate, anode electrode, hole transport layer, luminescent layer, one deck electron transport layer and one deck cathode electrode totally six layers be formed by stacking successively, described anode electrode and cathode electrode are Graphene;
The material of described smooth metal substrate is nickel, iron, gold, silver, copper, platinum, tungsten or stainless steel, perhaps nickel, iron, gold, silver, copper, platinum and the tungsten alloy more than 2 kinds wherein.
Described hole transport layer material is aromatic amine, pyrrole Cuo quinoline class or click pyrrole Cuo class, and the thickness of described hole transport layer is 20nm;
The preparation method of the panel of described large scale flexible flat panel display device is characterized in that, concrete steps are:
Step 1) at first cleans up smooth metal substrate, dries up with ammonia;
Step 2) utilize the standby graphene film of reduction-oxidation legal system to consist of anode electrode at smooth metal substrate;
Step 3) forms hole transport layer based on evaporation process on anode electrode;
Step 4) forms luminescent layer based on evaporation process on hole transport layer;
Step 5) forms electron transport layer based on evaporation process on luminescent layer;
The cathode electrode that step 6) utilizes the standby graphene film of reduction-oxidation legal system to consist of in electron transport layer.
Among the panel preparation method of described large scale flexible flat panel display device in the step 4) luminescent layer be scattered in the epoxy resin solution that contains 0.1% curing agent by the luminescent powder with zinc sulphide materials and obtain;
Present electronic device mainly is on hard substrate, and flexible device has caused more and more people's concern gradually, is the trend of future development.Thereby the exploitation low energy consumption, high yield, easily the flexible and transparent conductive material of new generation of processing becomes the target that scientific circles and business circles are competitively chased.Graphene is at charge mobility (1.5 * 10
6Cm
2/ (Vs)), light transmission, chemical stability, the aspects such as mechanical performance have excellent performance, are the ideal materials of flexible electrode.
The invention has the beneficial effects as follows: because that the employing of traditional organic electroluminescence display panel is ITO, it is expensive, output is few, flexible not enough, and difficult realization large scale flat panel display, replace ITO with Graphene and can overcome above deficiency, thereby for realizing that the large scale flexible display device provides an approach.
Description of drawings
Fig. 1 is structural representation of the present invention.
Wherein, 1-planar metal substrate, 2-anode electrode, 3-hole transport layer, 4-luminescent layer, 5-electron transport layer, 6-cathode electrode.
Embodiment
The invention will be further described below in conjunction with specific embodiment, but the present invention is not limited to following examples.
Being used for making the large scale flexible flat according to as shown in Figure 1 figure shows.Wherein, comprise hole transport layer 3, luminescent layer 4 and electron transport layer 5 and in order stack, anode electrode 2 and cathode electrode 6 lay respectively at the following of cave transport layer 3, luminescent layer 4 and electron transport layer 5 and above, anode electrode 2 is positioned on the smooth metal substrate 1.At first, form a smooth metal substrate thereby piece of metal is carried out polishing, make it have suitable evenness.Known to those skilled in the art, polishing mainly comprises electrochemical polish, physics polishing and the further cmp etc. to metal.After forming metal substrate, the metal substrate that polishes is cleaned up, then form graphene film thereon and consist of anode electrode; Present embodiment prepares by surperficial epitaxial growth method in the method that the planar metal sheet forms graphene film.Also be that graphene film forms hole transport layer on anode electrode, hole transport layer material commonly used comprises aromatic amine, pyrrole Cuo quinoline and click pyrrole Cuo class.Form luminescent layer at hole transport layer, the luminescent powder of zinc sulphide materials is scattered in the epoxy resin solution that contains 0.1% curing agent, be formed on the graphene film by rotary process, then under 120 degree left and right sides temperature, dry.Form electron transport layer at luminescent layer, material commonly used is such as coumarin derivative, conjugated aromatic compounds and metal scorpion compound etc.Form cathode electrode in electron transport layer, the method that produces equally graphene film prepares by surperficial epitaxial growth method.
Those of ordinary skill in the art will appreciate that, embodiment described here is in order to help reader understanding's principle of the present invention and purpose, the present invention can come implementation with some forms, will also be understood that, above-described embodiment is not limited to previously described any details, unless point out in addition, on the contrary, should think to be positioned at widely the spirit and scope that limit such as claims.
Claims (6)
1. the panel of a large scale flexible flat panel display device, it is characterized in that, by the smooth metal substrate 1 of one deck, one deck anode electrode 2, one deck hole transport layer 3, one deck luminescent layer 4, one deck electron transport layer 5 and one deck cathode electrode 6 totally six layers be formed by stacking successively, described anode electrode 2 and cathode electrode 6 are Graphene.
2. the panel of large scale flexible flat panel display device according to claim 1, it is characterized in that, the material of described smooth metal substrate 1 is nickel, iron, gold, silver, copper, platinum, tungsten or stainless steel, perhaps nickel, iron, gold, silver, copper, platinum and the tungsten alloy more than 2 kinds wherein.
3. the panel of large scale flexible flat panel display device according to claim 1 is characterized in that, described hole transport layer 3 materials are aromatic amine, pyrrole Cuo quinoline class or click pyrrole Cuo class, and the thickness of described hole transport layer 3 is 20nm.
4. realize the preparation method of the panel of large scale flexible flat panel display device claimed in claim 1, it is characterized in that concrete steps are:
Step 1) at first cleans up smooth metal substrate 1, dries up with ammonia;
Step 2) utilize the standby graphene film of reduction-oxidation legal system to consist of anode electrode 2 at smooth metal substrate 1;
Step 3) forms hole transport layer 3 based on evaporation process on anode electrode 2;
Step 4) forms luminescent layer 4 based on evaporation process on hole transport layer 3;
Step 5) forms electron transport layer 5 based on evaporation process on luminescent layer 4;
The cathode electrode 6 that step 6) utilizes the standby graphene film of reduction-oxidation legal system to consist of in electron transport layer 5.
5. the panel preparation method of large scale flexible flat panel display device according to claim 4, it is characterized in that described step 2) and step 6) in graphene film adopt micromechanics stripping method, oxidation-reduction method, surperficial epitaxial growth method or chemical gaseous phase deposition method to obtain.
6. the panel preparation method of large scale flexible flat panel display device according to claim 4 is characterized in that, luminescent layer 4 is scattered in the epoxy resin solution that contains 0.1% curing agent by the luminescent powder with zinc sulphide materials and obtains in the described step 4).
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105636281A (en) * | 2016-02-04 | 2016-06-01 | 重庆墨希科技有限公司 | Graphene cold light board and production method therefor |
| CN107006077A (en) * | 2014-10-24 | 2017-08-01 | 国家科学研究中心 | Transparent heating arrangement with graphene film |
| CN107799573A (en) * | 2017-10-26 | 2018-03-13 | 杨晓艳 | A kind of OLED display panel and display device |
| CN112885980A (en) * | 2021-01-29 | 2021-06-01 | 南京大学 | Method for manufacturing graphene all-electrode transparent OLED device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1971953A (en) * | 2006-12-13 | 2007-05-30 | 天津理工大学 | Flexible white light quanta point electroluminescent device and its preparation method |
| CN101702345A (en) * | 2009-11-27 | 2010-05-05 | 南京邮电大学 | Preparation method for laminated graphene conductive film |
| CN102056361A (en) * | 2010-09-16 | 2011-05-11 | 电子科技大学 | Graphene electroluminescent display device and manufacturing method thereof |
| CN102214800A (en) * | 2011-05-20 | 2011-10-12 | 电子科技大学 | White-light organic luminescent device and manufacturing method thereof |
| US20120049239A1 (en) * | 2010-09-01 | 2012-03-01 | Chien-Min Sung | Graphene transparent electrode, graphene light emitting diode, and method of fabricating the graphene light emitting diode |
-
2012
- 2012-12-28 CN CN2012105811634A patent/CN103035666A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1971953A (en) * | 2006-12-13 | 2007-05-30 | 天津理工大学 | Flexible white light quanta point electroluminescent device and its preparation method |
| CN101702345A (en) * | 2009-11-27 | 2010-05-05 | 南京邮电大学 | Preparation method for laminated graphene conductive film |
| US20120049239A1 (en) * | 2010-09-01 | 2012-03-01 | Chien-Min Sung | Graphene transparent electrode, graphene light emitting diode, and method of fabricating the graphene light emitting diode |
| CN102056361A (en) * | 2010-09-16 | 2011-05-11 | 电子科技大学 | Graphene electroluminescent display device and manufacturing method thereof |
| CN102214800A (en) * | 2011-05-20 | 2011-10-12 | 电子科技大学 | White-light organic luminescent device and manufacturing method thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107006077A (en) * | 2014-10-24 | 2017-08-01 | 国家科学研究中心 | Transparent heating arrangement with graphene film |
| CN107006077B (en) * | 2014-10-24 | 2021-05-04 | 国家科学研究中心 | Transparent heating device with graphene film |
| CN105636281A (en) * | 2016-02-04 | 2016-06-01 | 重庆墨希科技有限公司 | Graphene cold light board and production method therefor |
| CN107799573A (en) * | 2017-10-26 | 2018-03-13 | 杨晓艳 | A kind of OLED display panel and display device |
| CN112885980A (en) * | 2021-01-29 | 2021-06-01 | 南京大学 | Method for manufacturing graphene all-electrode transparent OLED device |
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Application publication date: 20130410 |