Pixel driving circuit and driving method

• Main Authors: ZHU XIUDIAN, LIU WANLIN, WANG CHENG, JI YUAN, CHEN WENDONG, MU TINGZHOU, LIU JUNKAI
• Format: Patent
• Language: Chinese; English
• Published: 02.07.2021
• Subjects: ADVERTISING; ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION; CRYPTOGRAPHY; DISPLAY; EDUCATION; PHYSICS; SEALS

The invention provides a pixel driving circuit and a driving method, and the circuit comprises a memory which is used for storing a data signal; a control module, which is respectively connected with the power supply voltage end of the light-emitting element, the memory and the driving module, and is used for detecting the working voltage of the memory and the power supply voltage of the power supply voltage end, and controlling the driving module to be turned off according to the power supply voltage and the working voltage of the memory in the power-on and power-off process of the memory; a driving module, which is connected with the first end of the light-emitting element and used for providing driving current for the light-emitting element; a light-emitting element, wherein the second end of the light-emitting element is connected with the common electrode. The phenomena of messy codes, ghost shadows and the like of a picture displayed by the micro-display can be avoided in the power-on and power-off proc