15‐1: PWM Pixel Circuit with LTPS TFTs for Micro‐LED Displays. Issue 1 (29th May 2019)

• Record Type: Journal Article
• Authors: Kim, Jin-Ho; Shin, Sangmin; Kang, Kisun; Jung, Chulgyu; Jung, Youngki; Shigeta, Tetsuya; Park, Sang-Young; Lee, Ho Seop; Min, Jongsul; Oh, Jongsu; Kim, Yong-Sang
• Is Part Of: Digest of technical papers. Volume 50:Issue 1(2019)
• Page Start: 192
• Page End: 195
• Publication Date: 2019-05-29
• Subjects: P-type low temperature poly-silicon thin-film transistors (LTPS TFTs) -- Pulse width modulation (PWM) pixel circuit -- Micro-LED -- Wavelength shift; Information display systems -- Congresses; 621.3815422
• DOI: 10.1002/sdtp.12887
• Languages: English
• ISSNs: 0097-966X

Abstract

Abstract : Micro‐LEDs have a characteristic for wavelength shifts depending on a current density. Therefore, a PAM pixel circuit generates wavelength shifts according to the current of gray scale control for micro‐LED display. To solve this problem, this paper proposes a new PWM pixel circuit for gray scale controls using LTPS TFTs.