Patent · US Active

GOA circuit

US11640778B2 · kind B2 · utility

0Cited by

1References

20Claims

0Family size

Assignee

Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd. · CN

Inventor

Xiaobin Hu · Longbeilingcun, CN

Key dates

Filing date	Oct 27, 2020
Grant date	May 2, 2023
Priority date	—
Expiry date	Oct 29, 2041

Classification

Technology area (CPC G)Physics
CPC primaryG09G2320/043
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

A gate driver on array (GOA) circuit includes a plurality of GOA units, wherein the GOA units are cascaded. The cascaded GOA units includes an Nth-stage GOA unit including a pull-up control module, a cascade module, a pull-down holding module, a pull-down control module, and a signal output module. A structure of an inverter module in the pull-down holding module is improved. Advantageous effects are as follows. The inverter module in the pull-down holding module is optimized. Difference in a voltage-ampere characteristic between each of transistors after long-term operation of the inverter module is effectively reduced, thereby increasing operating time of the inverter module.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.