The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 23, 2017

Filed:

Oct. 20, 2014
Applicant:

Lg Display Co., Ltd., Seoul, KR;

Inventor:

Joong-Sun Yoon, Goyang-si, KR;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 27/32 (2006.01); H01L 29/786 (2006.01); H01L 27/12 (2006.01);
U.S. Cl.
CPC ...
H01L 29/78633 (2013.01); H01L 27/124 (2013.01); H01L 27/1225 (2013.01); H01L 27/3272 (2013.01); H01L 29/7869 (2013.01);
Abstract

An array substrate having a thin film transistor with an oxide semiconductor layer, wherein the thin film transistor is in a device area of a pixel region; the substrate comprising a light-shielding pattern on the array substrate in the device area; an auxiliary line connected to a light-shielding pattern and supplying a constant voltage to the light-shielding pattern, wherein the auxiliary line is parallel to and spaced apart from one of the gate and data lines; a buffer layer on the light-shielding pattern and a surface of the array substrate, wherein the oxide semiconductor layer is on the buffer layer and the light-shielding pattern; an inter-insulating layer on the buffer layer, wherein the oxide semiconductor layer includes an active portion located entirely on the light-shielding pattern and having a channel formed thereon, and conductive portions located on sides of the active portion.


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