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:
Nov. 26, 2019

Filed:

Aug. 11, 2017
Applicant:

Hon Hai Precision Industry Co., Ltd., New Taipei, TW;

Inventors:

Chien-Wen Lin, New Taipei, TW;

Yu-Fu Weng, New Taipei, TW;

Chia-Lin Liu, New Taipei, TW;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 19/00 (2006.01); G09G 3/3266 (2016.01); G09G 3/3225 (2016.01); G11C 19/28 (2006.01); G09G 3/36 (2006.01);
U.S. Cl.
CPC ...
G09G 3/3266 (2013.01); G09G 3/3225 (2013.01); G11C 19/28 (2013.01); G09G 3/3677 (2013.01); G09G 2300/0408 (2013.01); G09G 2300/0426 (2013.01); G09G 2300/0852 (2013.01); G09G 2310/0286 (2013.01); G09G 2310/08 (2013.01); G09G 2330/021 (2013.01);
Abstract

A display driving circuit for driving pixel units comprises a time controller, a first driving circuit, and a second driving circuit. The first driving circuit comprises a plurality of shift registers, and supplies phase-shifted scan signals. The shift registers are connected in cascade. Each shift register receives two clock signals from the time controller. Each shift register is a bidirectional shift register. Each shift register includes a pull-up transistor, a pull-down transistor, and a pull-down unit. The pull-down unit controls the pull-down transistor to turn on after the shift register being reset to prevent the shift register outputting an error signal.


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