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51.1: A 2.5‐inch OLED Display with a Three‐TFT Pixel Circuit for Clamped Inverter Driving
Author(s) -
Kageyama Hiroshi,
Akimoto Hajime,
Shimizu Yoshiteru,
Ouchi Takayuki,
Kasai Naruhiko,
Awakura Hiroki,
Tokuda Naoki,
Kajiyama Kenta,
Sato Toshihiro
Publication year - 2004
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1889/1.1821354
Subject(s) - pixel , inverter , thin film transistor , pmos logic , oled , cmos , computer science , led display , dot pitch , electrical engineering , electronic engineering , materials science , transistor , optoelectronics , voltage , artificial intelligence , engineering , layer (electronics) , composite material
A new pixel circuit for “clamped inverter driving” was developed. Since a PMOS inverter is applied instead of the conventional CMOS for the pixel circuit, the circuit is simplified and is composed of only three TFTs. A simulation of gray‐scale characteristics verified that this pixel circuit can compensate variation in V th and carrier mobility. A 2.5‐inch OLED display based on the new pixel circuit was fabricated by LTPS processing and achieves 6‐bit gray‐scale and good uniformity.

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