公开(公告)号：US10950163B2

公开(公告)日：2021-03-16

申请号：US16658650

申请日：2019-10-21

Applicant: AU Optronics Corporation

Inventor： Po-Chun Lai ,  Wei-Ting Wu ,  Syuan Shih ,  Wan-Lin Chen ,  Ming-Yuan Tang ,  Wei-Hsuan Chang ,  Yung-Chih Chen

IPC: G09G3/20 ,  G09G3/3233

Abstract: A pixel circuit includes a driving circuit, a lighting element, and multiple switching circuits. The driving circuit is configured to provide a driving current to a first node. A first terminal of the lighting element is coupled with a second node. A second terminal of the lighting element is configured to receive a system low voltage. The multiple switching circuits are coupled between the first node and the second node in a parallel connection, and configured to correspondingly receive multiple emission control signals and at least one grayscale control signal. During each frame, the multiple emission control signals provide multiple pulses, and the multiple pulses do not mutually overlapping in time sequence, so that the multiple switching circuits selectively couple the first node to the second node according to the multiple pulses and the at least one grayscale control signal.

公开(公告)号：US20190237006A1

公开(公告)日：2019-08-01

申请号：US16223111

申请日：2018-12-18

Applicant: Au Optronics Corporation

Inventor： Mao-Hsun Cheng ,  Cheng-Han Huang ,  Wei-Ting Wu ,  Yung-Chih Chen

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2300/0819 ,  G09G2320/0233

Abstract: A display panel and a compensation circuit are provided. The display panel has a periphery region and a display region. The display panel includes pixel columns and a threshold voltage compensation circuit. The pixel columns are disposed in the display region. The threshold voltage compensation circuit is disposed in the periphery region. The threshold voltage compensation circuit receives a compensation voltage, outputs threshold voltage information of a compensation transistor based on the compensation voltage, and generates compensated display data based on the threshold voltage information and display data.

公开(公告)号：US11430380B2

公开(公告)日：2022-08-30

申请号：US17368309

申请日：2021-07-06

Applicant: AU Optronics Corporation

Inventor： Po-Chun Lai ,  Wei-Ting Wu ,  Wei-Jen Chen ,  Chi-Fu Tsao ,  Yung-Chih Chen

IPC: G09G3/32

Abstract: The present disclosure relates to a pixel circuit including a light emitting element, a driving circuit, a first data storage circuit and a second data storage circuit. The driving circuit is electrically coupled to the light emitting element. The first data storage circuit is electrically coupled to the driving circuit, and is configured to transmit a first data signal to the driving circuit during a first frame period, so that the driving circuit drives the light emitting element according to the first data signal. The second data storage circuit is electrically coupled to the driving circuit, and is configured to receive a second data signal during the first frame period.