Pixel circuit

• Main Authors: ZHANG RUIHONG, LIN CHIH-LUNG, ZENG JINXIAN, CHENG MAO-HSUN, CHEN PO-SYUN
• Format: Patent
• Language: Chinese; English
• Published: 26.03.2019
• Subjects: ADVERTISING; ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION; CRYPTOGRAPHY; DISPLAY; EDUCATION; PHYSICS; SEALS

A pixel circuit comprises a driving transistor, a light emitting unit, a write-in circuit, a voltage regulating circuit and a compensating circuit. The first end of the driving transistor is used forreceiving a light emitting control signal. The second end of the driving transistor is coupled with a first node. The control end of the driving transistor is coupled with a second node. The light emitting unit comprises an anode end and a cathode end. The anode end is coupled with the first node. The cathode end is used for receiving a reference voltage. The write-in circuit is coupled with the second node and a third node and is used for deciding a second node voltage according to a first control signal and a data voltage. The voltage regulating circuit is coupled with the third node and isused for deciding a third node voltage according to a second control signal and a light emitting control signal. The compensating circuit is coupled with the first node and the third node and is usedfor deciding the third node