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Active part array base plate and LCD panel

A technology for liquid crystal display panels and array substrates, which is applied to electrical components, semiconductor devices, electrical solid devices, etc., can solve the problems of covering the conductive layer, the film thickness of the electrode layer is too thin, and the display abnormality of the liquid crystal display panel. The effect of avoiding corrosion

Inactive Publication Date: 2008-08-13
AU OPTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the surface electrode layer usually cannot completely cover the conductive layer in terms of technology, so that the conductive layer under the electrode layer is prone to produce pores and contact with the outside world, resulting in corrosion and abnormal display of the liquid crystal display panel.
For example, the electrode layer usually produces pores in the film after film formation to expose the underlying conductive layer, or the film thickness of the electrode layer is too thin to completely cover the conductive layer on the surface with slopes and undulations

Method used

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  • Active part array base plate and LCD panel
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  • Active part array base plate and LCD panel

Examples

Experimental program
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Effect test

no. 1 example

[0060] FIG. 2 is a schematic diagram of the active device array substrate in the first embodiment of the present invention. Referring to FIG. 2 , the active device array substrate 200 includes a substrate 210 , a pixel array 220 and at least one bonding pad 230 . Wherein, the substrate 210 has a display area 210D and a peripheral circuit area 210P adjacent to the display area 210D, and the peripheral circuit area 210P substantially surrounds the display area 210D. The pixel array 220 is disposed on the substrate 210 and located in the display area 210D, and the bonding pad 230 is disposed on the substrate 210 and located in the peripheral circuit area 210P. In addition, in this embodiment, the pixel array 220 is composed of, for example, a plurality of pixel units 250, wherein each pixel unit 250 includes a thin film transistor 240 and a pixel electrode P, and the thin film transistor 240 has a gate G, a source S and a drain d. The pixel electrode P is disposed on part of th...

no. 2 example

[0065] 3B is a schematic cross-sectional view of another bonding pad and a pixel unit in the second embodiment of the present invention. Please refer to FIG. 3B, the bonding pad 330 is similar to the bonding pad 230 in FIG. The second conductive layer 270, so that the electrode layer 290 is connected to the first conductive layer 260 through the second conductive layer 270 in the interlayer conductive region B. Specifically, the material of the second conductive layer 270 can be aluminum, molybdenum, titanium, neodymium, a laminate thereof, or an alloy thereof, and the second conductive layer 270 can further reduce the gap between the first conductive layer 260 and the electrode layer 290. The contact resistance value (contact resistance), and then enhance the signal transmission effect between the film layers in the interlayer conduction region B.

[0066] In fact, the fabrication of the film layer of the bonding pad 230 can be completed when the pixel array 220 is fabricate...

no. 3 example

[0071] FIG. 5 is a schematic cross-sectional view of a liquid crystal display panel according to a third embodiment of the present invention. Please refer to FIG. 5, the liquid crystal display panel 400 includes an active element array substrate 410, an opposite substrate 420, a plastic frame 430, and a liquid crystal layer 440, wherein the active element array substrate 410 is, for example, a bonding pad 450 having any of the above-mentioned embodiments. The active device array substrate 410, wherein the bonding pads 450 are, for example, the bonding pads 230, 330 in the above-mentioned embodiments. The opposite substrate 420 is disposed on the opposite side of the active device array substrate 410 and has a common electrode 422 . In addition, the plastic frame 430 is located between the common electrode 422 and the active device array substrate 410 , and the liquid crystal layer 440 is disposed in a space surrounded by the active device array substrate 410 , the opposite sub...

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Abstract

An active element array base plate and a liquid crystal display panel. The active element array base plate includes a base plate, an array of pixel and at least one gasket. The base plate has a display area and a periphery circuit area which is adjacent to the display area. The array of pixel disposes in the display area on the base plate. The gasket disposes around the periphery circuit area on the base plate and has at least one transparent area as well as an interlamination conducting area; the gasket includes a first conducting layer, a dielectric layer, an electrode layer and a protective layer. The first conducting layer disposes on the base plate and has a first opening at the transparent area. The dielectric layer covers the first conducting layer and has a second opening in the interlamination conducting area. The electrode layer covers the dielectric layer, and the electrode layer electrically connects to the first conducting layer through the second opening. The protective layer covers the electrode layer of the interlamination conducting area exposing the electrode layer of the transparent area. The invention can effectively avoid the corrosion, ensure that the gasket has both the transparent and conducting characteristic, and it is compatible with the prior art without extra cost of manufacture.

Description

technical field [0001] The present invention relates to a method for manufacturing a pixel structure, and in particular to a method for manufacturing a pixel structure with a color filter layer using less photolithography and etching process (PEP). Background technique [0002] Due to the increasing demand for displays, the industry is fully committed to the development of related displays. Among them, the cathode ray tube (Cathode Ray Tube, CRT) has been monopolizing the display market for many years because of its excellent display quality and technological maturity. However, due to the recent rise of the concept of green environmental protection, due to the characteristics of large energy consumption and large amount of radiation generated by cathode ray tubes, and the limited space for product flattening, it cannot meet the needs of light, thin, short, small, beautiful and low-cost products in the market. Market trends in power consumption. Therefore, thin film transis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L27/12H01L23/485G02F1/1362G02F1/1339
Inventor 黄钲琅石志鸿
Owner AU OPTRONICS CORP
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