Transparent conductive electrode, fabrication method thereof and display device
A technology of transparent conductive electrodes and transparent conductive layers, which can be used in the manufacture of cables/conductors, conductive layers on insulating carriers, and semiconductor/solid-state device manufacturing, etc. The effect of edge straightness, good edge straightness and easy control of line width
Inactive Publication Date: 2018-11-23
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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Problems solved by technology
However, the above process is not only complicated and costly, but also involves high temperature in the preparation process, which is very harmful to display panels, especially flexible panels.
[0003] At present, some people use the screen printing process to prepare transparent conductive electrodes, but the resolution of the screen printing process is insufficient, the line width of the transparent conductive electrodes is too large, and it is impossible to form micro-nano-level patterns, and the film thickness of the screen printing process is controlled. unstable
Therefore, so far, there is no good preparation method for transparent conductive electrodes
Method used
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[0025] The following are preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, without departing from the principle of the present invention, some improvements and modifications can also be made, and these improvements and modifications are also considered as the present invention. protection scope of the invention.
[0026] Please refer to figure 1 , Figure 2a-Figure 2e , a method for preparing a transparent conductive electrode provided in an embodiment of the present invention, comprising the following steps:
[0027] Step 1: providing a substrate 1, coating a polypropylene carbonate layer 2 containing a photoacid generator on the substrate 1, and then forming a channel 21 in the polypropylene carbonate layer 2;
[0028] Step 2: forming a transparent conductive layer 3 by coating ink in the channel 21, followed by drying to remove the solvent in the ink;
[0029] Step 3: Removing the remaining polypropylene carbonate...
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Abstract
The invention provides a fabrication method of a transparent conductive electrode. The fabrication method comprises the following steps of providing a substrate, coating a polypropylene carbonate layer containing a photo-acid generator on the substrate, and forming a channel in the polypropylene carbonate layer; coating ink in the channel to form a transparent conductive layer, and performing drying to remove a solvent in the ink; and removing a residual polypropylene carbonate layer by ashing to obtain the transparent conductive electrode. According to the method provided by the invention, the temperature required by removal of the polypropylene carbonate layer can be greatly reduced by coating the polypropylene carbonate layer containing the photo-acid generator, and the transparent conductive electrode can be finally applicable to more types of substrates; and by the method of forming the channel in the polypropylene carbonate layer and forming the transparent conductive layer in the channel, the dosage of the ink can be greatly saved, the fabrication cost is reduced, the line width and the thickness of the transparent conductive layer also can be accurately controlled, and theedge linearity of the transparent conductive layer can be improved.
Description
technical field [0001] The invention belongs to the field of display technology, and in particular relates to a preparation method of a transparent conductive electrode and a display device. Background technique [0002] Thin film transistor liquid crystal display (TFT-LCD) has many advantages such as thin body, power saving, and excellent display effect. And now people are constantly deepening the research on TFT-LCD. In order to realize the multi-domain display and wide viewing angle of TFT-LCD, it is generally necessary to pattern the transparent conductive electrodes. However, in the prior art, the PVD method is generally used to sputter the entire film, and then through the processes of exposure, etching, and stripping, the pattern is finally formed. However, the above-mentioned process is not only complicated and costly, but also involves high temperature during the preparation process, which is very harmful to the display panel, especially the flexible panel. [00...
Claims
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IPC IPC(8): H01L21/84H01L27/12G02F1/1343H01B5/14H01B13/00
CPCG02F1/134309H01B5/14H01B13/00H01L27/124H01L27/1292
Inventor 张霞刘国和刘刚
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD