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:
May. 05, 2020
Filed:
Aug. 20, 2018
Applicant:
Hannstar Display Corporation, Taipei, TW;
Inventors:
Assignee:
HannStar Display Corporation, Taipei, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 3/20 (2006.01); G09G 3/36 (2006.01); G09G 3/3266 (2016.01); G11C 19/28 (2006.01);
U.S. Cl.
CPC ...
G09G 3/2092 (2013.01); G09G 3/3266 (2013.01); G09G 3/3677 (2013.01); G11C 19/28 (2013.01); G09G 2310/0248 (2013.01); G09G 2310/0286 (2013.01); G09G 2310/061 (2013.01); G09G 2330/026 (2013.01); G09G 2330/06 (2013.01);
Abstract
In a shift register, a pre-charge unit is configured to receive a first input signal and output a pre-charge signal to a first node, a pull-up unit is configured to output a scan signal to a second node, and a pull-down unit is configured to receive a pull-down control signal. The pull-down control signal switches from a disable voltage to an enable voltage before the display panel switches from a non-display status to a display status.