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Title:
ACTIVE MATRIX SUBSTRATE AND LIQUID CRYSTAL DISPLAY APPARATUS
Document Type and Number:
WIPO Patent Application WO/2023/090264
Kind Code:
A1
Abstract:
This active matrix substrate comprises, in order, a pixel TFT including an oxide semiconductor layer, a first interlayer insulation layer for covering the oxide semiconductor layer and a gate electrode, a first organic insulation layer, and a pixel electrode. A first pixel contact hole is formed in the first interlayer insulation layer, and a second pixel contact hole is formed in the first organic insulation layer. The pixel electrode is formed from a transparent electroconductive material. A first electrode layer includes a first portion contacting a drain contact region of the oxide semiconductor layer within the first pixel contact hole, and a second portion positioned within the second pixel contact hole. A second electrode layer includes a third portion contacting the second portion, and a fourth portion positioned on the first organic insulation layer. A third electrode layer includes a fifth portion contacting the fourth portion, and a sixth portion positioned on a second organic insulation layer. The length of the second electrode layer along a row direction is equal to or less than the length of the third electrode layer along the row direction. The active matrix substrate also comprises a second organic insulation layer filling the second pixel contact hole.

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Inventors:
OKADA KUNIAKI
HACHIYA ATSUSHI
Application Number:
PCT/JP2022/042039
Publication Date:
May 25, 2023
Filing Date:
November 11, 2022
Export Citation:
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Assignee:
SHARP DISPLAY TECHNOLOGY CORP (JP)
International Classes:
H01L29/786; G02F1/1368; G09F9/00; G09F9/30; G09F9/35; H01L21/336
Foreign References:
JP2019124890A2019-07-25
JP2018170326A2018-11-01
JP2018013790A2018-01-25
JP2012242439A2012-12-10
JP2000058848A2000-02-25
US20200371401A12020-11-26
US20180069128A12018-03-08
US20210405411A12021-12-30
Attorney, Agent or Firm:
OKUDA Seiji (JP)
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