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Film transistor array substrate

A technology of thin film transistors and substrates, which is applied in the direction of transistors, electric solid-state devices, semiconductor devices, etc., and can solve the problems affecting the aperture ratio of pixels

Active Publication Date: 2015-01-07
AU OPTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this design will inevitably affect the pixel aperture ratio, so designers are often trapped in these two dilemmas and cannot break through

Method used

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  • Film transistor array substrate
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  • Film transistor array substrate

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Embodiment Construction

[0065] figure 1 It is a top view of a thin film transistor array substrate according to an embodiment of the present invention. figure 2 for along figure 1 Sectional view of line segment 2. As shown in the figure, a thin film transistor array substrate includes a substrate 110, a first patterned conductive layer 120, a first insulating layer 130, a semiconductor layer 140, a second patterned conductive layer 150, a second insulating layer 160, and through holes. 170 and the pixel electrode 180.

[0066] The first patterned conductive layer 120 is located on the substrate 110, and the first patterned conductive layer 120 includes scan lines 122 (such as figure 1 shown), the gate 124 and the floating electrode 126, wherein the gate 124 is electrically connected to the scan line 122 (such as figure 1 as shown). The material of the above-mentioned substrate 110 can be glass or plastic, and the material of the first patterned conductive layer 120 can be metal, such as aluminu...

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Abstract

A film transistor array substrate uses stack structure to underlay a extension electrode of a drain of a film transistor, so that the extension extend of the drain can be exposed without deep through hole.

Description

technical field [0001] The present invention relates to a display, and in particular to a liquid crystal display. Background technique [0002] For liquid crystal displays, the size of the pixel aperture ratio will directly affect the utilization rate of the backlight source, and will also affect the display brightness of the display. One of the main factors affecting the size of the pixel aperture ratio is the through hole on the substrate of the thin film transistor array. (contact hole) area. Generally speaking, the smaller the area of ​​the through hole, the larger the area of ​​the pixel region and the larger the pixel aperture ratio. [0003] However, limited by the current etching technology, if the area of ​​the via hole is too small, the via hole often cannot penetrate the insulating layer smoothly. Especially for the color filter on the substrate (COA; color filter on array) structure or high aperture ratio (UHA; Ultra-High Aperture) structure, due to the current...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L27/12H01L23/528H01L29/786H01L29/423
Inventor 曾庆安侯鸿龙李佳育陈介伟朱公勍黄彦衡陈宗凯林以尊邱骏仁
Owner AU OPTRONICS CORP
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