RGB virtual pixel microled display with a supply buffer for reducing ghosting by 50%-73% and achieving 4 times screen resolution and 95% high efficiency

Kai Cheng Chung, Zhi Qiang Zhang, Cheng Hsiang Liao, Yu Yung Kao, Ke Horng Chen, Ying Hsi Lin, Shian Ru Lin, Tsung Yen Tsai

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This paper proposed MicroLED virtual pixel array design and driver. The proposed virtual pixel array effectively increases the pixels per inch (PPI) while having a relatively low ghosting. The push-pull supply buffer in the proposed driver is compensated by the dynamic Miller compensation (DMC) technique to reduce the ghosting by 50%-73%. Four times screen resolution can be obtained compared to conventional designs. 95% high efficiency microLED driver has the lowest 45μW power consumption.

Original languageEnglish
Title of host publication2020 IEEE International Symposium on Circuits and Systems, ISCAS 2020 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728133201
DOIs
StatePublished - 12 Oct 2020
Event52nd IEEE International Symposium on Circuits and Systems, ISCAS 2020 - Virtual, Online
Duration: 10 Oct 202021 Oct 2020

Publication series

NameProceedings - IEEE International Symposium on Circuits and Systems
Volume2020-October
ISSN (Print)0271-4310

Conference

Conference52nd IEEE International Symposium on Circuits and Systems, ISCAS 2020
CityVirtual, Online
Period10/10/2021/10/20

Keywords

  • Dynamic Miller compensation (DMC) technique
  • MicroLED
  • Virtual pixel array and driver

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