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Thin film transistor array panel

A thin-film transistor and array panel technology, applied in the field of thin-film transistor array panels, can solve problems such as hindering current flow and characteristic degradation

Inactive Publication Date: 2006-06-28
SAMSUNG DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The protrusions hinder the flow of current and cause the characteristics of the TFT to deteriorate, resulting in defects such as horizontal and vertical stripes

Method used

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Experimental program
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Embodiment Construction

[0043] Preferred embodiments of the invention will be described more fully hereinafter with reference to the accompanying drawings, in which preferred embodiments of the invention are shown. However, this invention may be embodied in many different ways and should not be construed as limited to the embodiments set forth herein.

[0044] figure 1 is a layout diagram of a TFT array panel for LCD according to an embodiment of the present invention. figure 2 is formed in figure 1 The layout diagram of the protrusions on the semiconductor islands in the TFT array panel shown in . image 3 yes figure 1 A cross-sectional view of the TFT array panel shown in , taken along line III-III' and line III'-III".

[0045] A barrier layer 111 is formed on an insulating substrate 110 such as transparent glass, quartz or sapphire, and the barrier layer 111 preferably contains silicon dioxide (SiO 2 ) or silicon nitride (SiNx). The barrier layer 111 may have a multilayer structure.

[004...

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Abstract

The invention provides a thin film transistor array panel. The thin film transistor array panel includes: a substrate; a plurality of semiconductor islands formed on the substrate and including a plurality of first and second extrinsic regions and a plurality of intrinsic regions; a gate insulating layer covering the semiconductor islands; a plurality of gates pole lines, including a plurality of gate electrodes overlapping with the intrinsic region and formed on the gate insulating layer; a plurality of data lines connected to the first extrinsic region and formed on the gate insulating layer; a plurality of pixel electrodes connected to To the second extrinsic region, wherein a plurality of protrusions are formed on the surface of the semiconductor island, the length of the semiconductor island is a multiple of the distance between at least two protrusions.

Description

technical field [0001] The present disclosure relates to a thin film transistor array panel using polysilicon as a semiconductor. Background technique [0002] A thin film transistor array panel is used as a circuit substrate to individually drive each pixel in a flat panel display. The flat panel display is, for example, a liquid crystal display or an organic light emitting diode display, and the flat panel display has a plurality of pixels. [0003] A liquid crystal display (LCD) includes two panels provided with field generating electrodes such as pixel electrodes and common electrodes and a liquid crystal (LC) layer interposed between the two panels. The LCD displays images by applying a voltage to the field generating electrodes to generate an electric field in the LC layer, which determines the orientation of LC molecules in the LC layer, thereby adjusting the polarization of incident light. [0004] An organic light emitting diode display (OL...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/136G02F1/133H01L29/786
CPCH01L27/1285H01L27/1296H01L29/04H01L29/78621H01L29/78645H10K59/1213H05B33/22H10K59/12H10K71/00
Inventor 金东范李清
Owner SAMSUNG DISPLAY CO LTD
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