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9.1: A 3.5‐inch OLED Display using a 4‐TFT Pixel Circuit with an Innovative Pixel Driving Scheme
Author(s) -
Kageyama Hiroshi,
Akimoto Hajime,
Ouchi Takayuki,
Kasai Naruhiko,
Awakura Hiroki,
Tokuda Naoki,
Sato Toshihiro
Publication year - 2003
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 - 10.1889/1.1832214
Subject(s) - pixel , oled , thin film transistor , liquid crystal display , flat panel display , luminance , driver circuit , capacitor , dot pitch , computer science , chip , electrical engineering , computer hardware , materials science , optoelectronics , engineering , artificial intelligence , voltage , layer (electronics) , composite material
A new pixel circuit for the “clamped inverter driving method” reported previously is developed. The pixel circuit is composed of four TFTs, one capacitor and five signal lines including power supply. A 3.5‐inch OLED display with the proposed new pixel circuit has been fabricated by LTPS processing and COG of an existing LCD driver chip. A vertical scanning circuit and selector switches are integrated in the panel. The proposed driving scheme is confirmed as OLED display to produce 6‐bit gray‐scale, gamma correction, and peak luminance with clear full‐color images.