5‐2: Gate Driver Circuits for Internal Compensation Type OLED Display with High Mobility Oxide TFT. Issue 1 (30th May 2018)

• Record Type: Journal Article
• Authors: Kim, Dae Hwan; Koo, Hyung Joon; Kang, Min-Gu; Chun, Kwang Il; Choi, Uyhyun; Ko, Younghyun; Jeon, Jeyong; Jeong, ChanYong; Jang, Yong Ho; Bae, Jong Uk; Park, Kwon-shik; Yoon, Soo Young; Kang, In Byeong
• Is Part Of: Digest of technical papers. Volume 49:Issue 1(2018)
• Page Start: 40
• Page End: 43
• Publication Date: 2018-05-30
• Subjects: High mobility -- Oxide TFT -- Internal compensation -- GIP; Information display systems -- Congresses; 621.3815422
• DOI: 10.1002/sdtp.12486
• Languages: English
• ISSNs: 0097-966X

Abstract

Abstract : The self‐compensating pixel circuit and the gate driver are fabricated with high mobility (~50cm 2 /Vs) oxide TFTs. In order to improve operating margin against negative shift of Vth in GIP circuit, the circuit utilizes two low‐voltage‐level signals. Also, the design of the EM driver to be controlled by the scan driver reduces the bezel size. Our 5.5‐in. FHD OLED display panel on PI substrate shows good uniformity and long‐term stability with saturation behavior of clamping voltage in GIP circuit under operation at 60°C for over 1, 000 hours.