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4‐4: High PPI MicroLED display driver circuit and device structure

Authors :
Zhao, Jiao
Zhao, Meng
Guo, Yuzhen
Xiao, Li
Zhang, Chenyang
Zheng, Haoliang
Xuan, Minghua
Chen, Xiaochuan
Yuan, Guangcai
Source :
SID Symposium Digest of Technical Papers; June 2023, Vol. 54 Issue: 1 p29-31, 3p
Publication Year :
2023

Abstract

This paper proposes a new type of display driver circuit and TFT device structure, studies the brightness control technology of high PPI Micro LED display, uses the inverter PWM driver module loaded in the traditional internal compensation driver circuit, when the low gray scale display, By triggering PWM module, the PWM is used to further divide the low gray scale under PAM mode again, so as to increase the gray level. Meanwhile, the introduction of Micro LED reverse NMOS and PMOS laminator TFT increases the PPI from 233 to 314 retinal level. Realized the Micro LED HD display and low brightness controllable demand.

Details

Language :
English
ISSN :
0097966X
Volume :
54
Issue :
1
Database :
Supplemental Index
Journal :
SID Symposium Digest of Technical Papers
Publication Type :
Periodical
Accession number :
ejs63828452
Full Text :
https://doi.org/10.1002/sdtp.16479