CN102654672B - Display device and array substrate as well as color filter substrate and manufacturing method thereof - Google Patents
Display device and array substrate as well as color filter substrate and manufacturing method thereof Download PDFInfo
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- CN102654672B CN102654672B CN201110369432.6A CN201110369432A CN102654672B CN 102654672 B CN102654672 B CN 102654672B CN 201110369432 A CN201110369432 A CN 201110369432A CN 102654672 B CN102654672 B CN 102654672B
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Abstract
The invention relates to the technical field of a display structure, and in particular relates to a display device and an array substrate as well as a color filter substrate and a manufacturing method thereof. The color filter substrate comprises a transparent conductive protection layer; and the transparent conductive protection layer is mainly made of a transparent resin material containing carbon nanometer tubes. According to the manufacturing method provided by the embodiment of the invention, a flattened layer and a common electrode in the former color filter substrate are replaced by the transparent conductive protection layer made of the resin material containing the carbon nanometer tubes, so as to achieve simple structure and simplify process flow. Meanwhile, the glue falling phenomenon, which is easy to occur in a follow-up product and is caused by poor adhesion between the organic resin flattened layer and the ITO (Indium Tin Oxide) common electrode, can be effectively solved. Furthermore, an ITO material is replaced by using the carbon nanometer tubes, so that the manufacturing material of the color filter substrate can be further expanded; the indium energy is saved; and the manufacturing method guides a direction for a follow-up step of replacing the ITO material.
Description
Technical field
The present invention relates to display structure technical field, particularly a kind of display device, array base palte, color membrane substrates and preparation method thereof.
Background technology
Along with TFT-LCD (Thin Film Transistor-Liquid Crystal Display, Thin Film Transistor (TFT) liquid crystal display) development of technology, the reduction of its cost and the perfect further of manufacturing process, become the mainstream technology of flat display field.TFT-LCD is formed box by color membrane substrates and array base palte, and color membrane substrates is mainly TFT-LCD and provides color.
Color membrane substrates of the prior art comprises: glass substrate, glass substrate sets gradually black matrix, color rete, planarization layer, public electrode and cylindrical spacer, its manufacture craft is generally: form black matrix first on the glass substrate, form redness, green and blue color rete on this basis respectively, carry out coating flat layer afterwards, play planarization effect, then carry out the deposition of public electrode, finally form cylindrical spacer.Wherein, planarization layer adopts resin material coating to be formed, and public electrode is deposited by ITO (Indium Tin Oxides, tin indium oxide) to form, and chock insulator matter is be made up of resin material equally.In manufacturing process, because the adhesiveness of organic resin and ITO is bad, often glue can be caused; the phenomenon that each Rotating fields caused comes off; and complex structure in existing color membrane substrates, its corresponding manufacture craft is also thereupon complicated loaded down with trivial details, and production efficiency is low.
On the other hand, ITO is the most important electrically conducting transparent raw material of current flat-panel screens and touch panel, almost completely leading whole market.But the reserves of indium are limited, and most mineral reserve are positioned at China's Mainland, and therefore, part practitioner starts the substitute researching and developing conductive material in recent years.Especially after 311 violent earthquakes occur Japan in 2011, cause the ITO target manufacturer-JX Nippon Mining & Metals of the shared ratio maximum (about 65%) in the whole world to be positioned at the main product line in Ibaraki county impaired, also make a lot of supplier start to think deeply the possibility importing ITO substitute.
Summary of the invention
(1) technical matters that will solve
The technical problem to be solved in the present invention is to provide a kind of display device, array base palte, color membrane substrates and preparation method thereof, easily there is falling glue in the subsequent product overcoming the bad initiation of adhesiveness between existing color membrane substrates organic resin and ITO public electrode, cause and only rely on ITO material in the low and prior art of yields and the disadvantages such as the unrestricted consumption ITO energy that brings.
(2) technical scheme
In order to solve the problem; one aspect of the present invention provides a kind of color membrane substrates; it transparent conductive protection layer comprising substrate, color rete, black matrix and be formed on color rete and black matrix, this transparent conductive protection layer is made primarily of the transparent resin material containing carbon nano-tube.
Further, in described transparent conductive protection layer, the weight percentage of carbon nano-tube is 0.01%-0.02%.
Further, described carbon nano-tube is single wall or multi-walled carbon nano-tubes, and its length is 1-100 micron, and its diameter is 1-100 nanometer.
Further, described resin material is one or more in phenolics, polyethylene terephthalate, PEN, polyimide, polyphenylene sulfide, aromatic poly amide, polypropylene, tygon, PLA, Polyvinylchloride, polycarbonate, polymethylmethacrylate, ester ring type acryl resin and cyclic olefin resins.
On the other hand, the present invention also provides a kind of array base palte, and it comprises pixel electrode, and described pixel electrode is made primarily of the transparent resin material containing carbon nano-tube.
Further, in described pixel electrode, the weight percentage of carbon nano-tube is 0.01%-0.02%.
Further, described carbon nano-tube is single wall or multi-walled carbon nano-tubes, and its length is 1-100 micron, and its diameter is 1-100 nanometer.
Further, described resin material is one or more in phenolics, polyethylene terephthalate, PEN, polyimide, polyphenylene sulfide, aromatic poly amide, polypropylene, tygon, PLA, Polyvinylchloride, polycarbonate, polymethylmethacrylate, ester ring type acryl resin and cyclic olefin resins.
Again on the one hand, the present invention also provides a kind of display device, comprises above-mentioned colored substrate and/or array base palte.
Again on the one hand, the present invention also provides a kind of method for making of color membrane substrates, and it comprises:
Step 1, substrate form black Matrix Pattern by patterning processes;
Step 2, on the substrate of completing steps 1, form color rete, described color rete comprises red color rete, green tint rete and blue color rete;
Step 3, on the substrate of completing steps 2 coating containing the resin solution of carbon nano-tube, after heat curing, form transparent conductive protection layer;
Step 4, on the substrate of completing steps 3, form chock insulator matter.
Further, the method for making of transparent conductive material described in step S3 is: in ethylene dichloride, adopt ultrasound wave process to be dispersed into carbon nano-tube solution the carbon nano-tube adding spreading agent; Carbon nano-tube solution after dispersion treatment is added in resin solution, adopts ultrasound wave to carry out dispersion treatment, form the uniform resin solution containing carbon nano-tube.
(3) beneficial effect
Display device provided by the invention, array base palte, color membrane substrates and preparation method thereof, adopt and be made into transparent conductive protection layer containing the resin material of carbon nano-tube and replace planarization layer in original color membrane substrates and public electrode, make structure more simple, simplify technological process; Effectively can solve simultaneously and cause easily falling glue phenomenon in subsequent product because the adhesiveness between organic resin planarization layer and ITO conductive layer is poor, and adopt carbon nano-tube to replace ITO material, the making material of color membrane substrates can be further expanded, save the indium energy, for suceeding generation is for ITO material channeling direction.
Accompanying drawing explanation
Fig. 1 is the color film substrate structure schematic diagram that the embodiment of the present invention completes black matrix;
Fig. 2 is the color film substrate structure schematic diagram that the embodiment of the present invention completes black matrix and color rete;
Fig. 3 is the color film substrate structure schematic diagram that the embodiment of the present invention completes black matrix, color rete and transparent conductive protection layer;
Fig. 4 is the overall color film substrate structure schematic diagram of the embodiment of the present invention;
Fig. 5 is the method for making process flow diagram of embodiment of the present invention color membrane substrates.
In figure: 1, substrate; 2, black matrix; 3, red color rete; 4, green tint rete; 5, blue color rete; 6, transparent conductive protection layer; 7, chock insulator matter.
Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples for illustration of the present invention, but are not used for limiting the scope of the invention.
As Figure 1-4, embodiment of the present invention color membrane substrates comprises: substrate 1, it sets gradually black matrix 2, color rete, transparent conductive protection layer 6 and chock insulator matter 7.Its rete of prizing comprises red color rete 3, green tint rete 4 and blue color rete 5.
Wherein, transparent conductive protection layer 6 is made up of the resin material containing carbon nano-tube.Carbon nano-tube CNT, the Nano-graphite Crystals of tubulose is single or multiple lift graphite flake around central shaft by the curling seamless nanoscale pipe of certain helix angle, and the C of every layer is SP
2hydridization, forms the face of cylinder of hexagon plane.1992, scientific research personnel found that carbon nano-tube presents good electric conductivity; Nineteen ninety-five, scientist studies and confirms its excellent field emission performance; 1996, China scientist realized carbon nano-tube large area oriented growth; 1998, scientific research personnel applied carbon nano-tube and makes cathode for electron tube; 1998, scientist used carbon nano-tube to make the field effect transistor of working and room temperature; 1999, carbon nanotube cathod color monitor sample pipe was made by research group of Korea S; 2000, Japanese Scientists made the carbon nano-tube field emission display sample pipe of high brightness.Recently, the great row of the military rattan of Japanese Feng Qiao technology University of Science and Technology associate professor have developed and utilizes electrostatic interaction to adhere to the technology of carbon nano-tube at macromolecule resin and ceramic surface.Use this technology can form CNT electrode at the substrate surface of liquid crystal panel.
In transparent conductive protection layer in the present embodiment, the weight ratio of carbon nano-tube is 0.01%-0.02%, and more preferably, the weight ratio of this carbon nano-tube is 0.01%, can realize preferably electric conductivity.Because the addition of carbon nano-tube is less, therefore, the carbon nano-tube of interpolation can not change the performance of resin material.If this resin material is transparent resin, then after with the addition of carbon nano-tube, except keeping the properties of transparency of resin material, good electric conductivity can also be had simultaneously.If this resin material is flexible resin, then electric conductivity can be had while maintenance is flexible.
Carbon nano-tube is single wall or multi-walled carbon nano-tubes, and its length is 1-100 micron, and its diameter is 1-100 nanometer.
Resin material is preferably phenolics, polyethylene terephthalate, poly-naphthalenedicarboxylic acid ethylene glycol, polyimide, polyphenylene sulfide, aromatic poly amide, polypropylene, tygon, PLA, Polyvinylchloride, polycarbonate, polymethylmethacrylate, ester ring type acryl resin or cyclic olefin resins, also can be other transparent resin materials.
The embodiment of the present invention adopts and is made into transparent conductive protection layer to replace planarization layer in original color membrane substrates and public electrode containing the resin material of carbon nano-tube, makes structure more simple, simplifies technological process; Effectively can solve simultaneously and cause easily falling glue phenomenon in subsequent product because the adhesiveness between organic resin planarization layer and ITO public electrode is poor, and adopt carbon nano-tube to replace ITO material, the making material of color membrane substrates can be further expanded, save the indium energy, for suceeding generation is for ITO material channeling direction.
The present embodiment also provides a kind of array base palte, comprises pixel electrode, and this pixel electrode is identical with the material of transparent conductive protection layer in color membrane substrates, and this Bu Zai Yun of is stated.
The present embodiment also provides a kind of display device, comprises the color membrane substrates and/or array base palte with above-mentioned feature.
As shown in Figure 5, the method for making of color membrane substrates provided by the invention specifically comprises:
Step 1, substrate form black Matrix Pattern by patterning processes;
Be specially: apply black matrix photoresist on substrate 1, and expose by the mask plate portraying figure, develop, etch and obtain black Matrix Pattern, see Fig. 1;
Step 2, on the substrate of completing steps 1, form color rete, described color rete comprises red color rete, green tint rete and blue color rete.Be specially: coated red pixel resin material on the substrate of completing steps 1, and obtain red color rete 3 by the exposure of the mask plate of portraying figure, development and etching, repeat above-mentioned steps and obtain green tint rete 4 and blue color rete 5, see Fig. 2;
Step 3, on the substrate of completing steps 2 coating containing the resin solution of carbon nano-tube, form transparent conductive protection layer after heat curing, see Fig. 3.；
Wherein, the method for making of this resin solution is: in ethylene dichloride, adopt ultrasound wave process to be dispersed into carbon nano-tube solution the carbon nano-tube being added with spreading agent; Carbon nano-tube solution after dispersion treatment is added in resin solution, adopts ultrasound wave to carry out dispersion treatment, form the uniform transparent resin solution containing carbon nano-tube.Spreading agent is the anionic surfactants such as alkyl sulfate, alkyl sulfonate or alkyl benzene sulfonate, wherein, the most frequently used is lauryl sodium sulfate, ammonium lauryl sulfate, sodium dodecylsulphonate, neopelex or sodium tetradecyl sulfate.
Step 4, on the substrate of completing steps 3, form chock insulator matter.
Be specially: on the substrate of completing steps 3, apply chock insulator matter with photoresist, by exposure, development, etching technics, finally form chock insulator matter, see Fig. 4.
It should be noted that, the technology that the present embodiment adopts the resin material containing carbon nano-tube CNT to replace ITO material to make conductive layer is equally applicable to other to be had in the board structure of conductive layer.
The embodiment of the present invention adopts and is made into transparent conductive protection layer to replace planarization layer in original color membrane substrates and public electrode containing the resin material of carbon nano-tube, makes structure more simple, simplifies technological process; Effectively can solve simultaneously and cause easily falling glue phenomenon in subsequent product because the adhesiveness between organic resin planarization layer and ITO public electrode is poor, and adopt carbon nano-tube to replace ITO material, the making material of color membrane substrates can be further expanded, save the indium energy, for suceeding generation is for ITO material channeling direction.
Above embodiment is only for illustration of the present invention; and be not limitation of the present invention; the those of ordinary skill of relevant technical field; without departing from the spirit and scope of the present invention; can also make a variety of changes and modification; therefore all equivalent technical schemes also belong to category of the present invention, and scope of patent protection of the present invention should be defined by the claims.
Claims (6)
1. a color membrane substrates, the transparent conductive protection layer comprising substrate, color rete, black matrix and be formed on described color rete and black matrix, is characterized in that, described transparent conductive protection layer is made primarily of the transparent resin material containing carbon nano-tube; Described transparent conductive protection layer is for replacing planarization layer in color membrane substrates and public electrode.
2. color membrane substrates as claimed in claim 1, it is characterized in that, described carbon nano-tube is single wall or multi-walled carbon nano-tubes, and its length is 1-100 micron, and its diameter is 1-100 nanometer.
3. color membrane substrates as claimed in claim 1, it is characterized in that, described resin material be in phenolics, polyethylene terephthalate, PEN, polyimide, polyphenylene sulfide, aromatic poly amide, polypropylene, tygon, PLA, Polyvinylchloride, polycarbonate, polymethylmethacrylate, ester ring type acryl resin or cyclic olefin resins one or more.
4. a display device, is characterized in that, comprises the color membrane substrates described in claim 1-3 any one.
5. a method for making for color membrane substrates, is characterized in that, comprising:
Step 1, substrate form black Matrix Pattern by patterning processes;
Step 2, on the substrate of completing steps 1, form color rete, described color rete comprises red color rete, green tint rete and blue color rete;
Step 3, on the substrate of completing steps 2 coating containing the resin solution of carbon nano-tube, after heat curing, form transparent conductive protection layer; Described transparent conductive protection layer is for replacing planarization layer in color membrane substrates and public electrode;
Step 4, on the substrate of completing steps 3, form chock insulator matter.
6. the method for making of color membrane substrates as claimed in claim 5, it is characterized in that, the method for making of the resin solution containing carbon nano-tube described in step S3 is: in ethylene dichloride, adopt ultrasound wave process to be dispersed into carbon nano-tube solution the carbon nano-tube being added with spreading agent; Carbon nano-tube solution after dispersion treatment is added in resin solution, adopts ultrasound wave to carry out dispersion treatment, form the uniform resin solution containing carbon nano-tube.
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| CN103424867B (en) * | 2012-05-24 | 2017-02-22 | 南京灿华光电设备有限公司 | Nanometer uniform light transmission display part |
| CN103676297B (en) * | 2013-12-09 | 2016-03-23 | 京东方科技集团股份有限公司 | A kind of color membrane substrates and liquid crystal indicator |
| CN104932148B (en) | 2015-06-30 | 2020-10-16 | 厦门天马微电子有限公司 | Composite substrate, liquid crystal display screen and manufacturing method |
| KR102381647B1 (en) * | 2015-10-29 | 2022-04-04 | 삼성디스플레이 주식회사 | Display device and fabrication method of the same |
| CN105974654A (en) | 2016-07-22 | 2016-09-28 | 京东方科技集团股份有限公司 | Preparation method of display substrate, display substrate and display device |
| CN106125393A (en) * | 2016-09-06 | 2016-11-16 | 京东方科技集团股份有限公司 | A kind of color membrane substrates and manufacture method, display device |
| CN106154639B (en) | 2016-09-29 | 2020-01-10 | 厦门天马微电子有限公司 | Liquid crystal display panel and liquid crystal display device |
| CN107474437A (en) * | 2017-09-01 | 2017-12-15 | 苏州罗格特光电科技有限公司 | A kind of preparation method of wide low temperature polyimide film material |
| CN107664890B (en) * | 2017-09-20 | 2021-01-26 | 京东方科技集团股份有限公司 | Flexible array substrate and preparation method thereof |
| CN108181749B (en) * | 2017-12-29 | 2020-08-28 | 深圳市华星光电技术有限公司 | Method for manufacturing liquid crystal display panel |
| CN115032828A (en) * | 2021-03-04 | 2022-09-09 | 海信视像科技股份有限公司 | Display device and manufacturing method of color film substrate |
| CN113235227B (en) * | 2021-04-19 | 2024-04-16 | 华南理工大学 | Preparation method and application of composite film |
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| US8785939B2 (en) * | 2006-07-17 | 2014-07-22 | Samsung Electronics Co., Ltd. | Transparent and conductive nanostructure-film pixel electrode and method of making the same |
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| WO2008102746A1 (en) * | 2007-02-20 | 2008-08-28 | Toray Industries, Inc. | Carbon nanotube assembly and electrically conductive film |
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| KR20100045675A (en) * | 2008-10-24 | 2010-05-04 | 삼성전자주식회사 | Display apparatus |
| KR101796808B1 (en) * | 2010-05-12 | 2017-11-10 | 다이니폰 인사츠 가부시키가이샤 | Optical laminate, method for manufacturing an optical laminate, polarizing plate, and image display device |
| CN102093715B (en) * | 2011-01-11 | 2012-10-10 | 清华大学 | Preparation method of carbon nanotube reinforced polyimide nano composite material |
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