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.
Patent No.:
Date of Patent:
Aug. 10, 2021
Filed:
Nov. 22, 2018
Applicant:
Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd., Hubei, CN;
Inventors:
Wu Ding, Hubei, CN;
Songshan Li, Hubei, CN;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 27/32 (2006.01); H01L 51/56 (2006.01);
U.S. Cl.
CPC ...
H01L 27/3258 (2013.01); H01L 27/3246 (2013.01); H01L 51/56 (2013.01); H01L 2227/323 (2013.01);
Abstract
An organic light emitting diode (OLED) display panel and manufacturing method thereof are provided. The display panel includes a substrate, a thin film transistor layer, and a light emitting structure, wherein the thin film transistor layer includes a polysilicon layer, a gate dielectric layer positioned on the polysilicon layer, a gate metal layer positioned on the gate dielectric layer, a gate buffer layer positioned on the gate dielectric layer, and an interlayer dielectric layer covering the gate dielectric layer, the gate metal layer, and the gate buffer layer.