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P‐11: An Improved Voltage Programmed Pixel Structure for Large Size and High Resolution AM‐OLED Displays
Author(s) -
Choi SangMoo,
Kwon OhKyong,
Chung HoKyun
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 - 10.1889/1.1830964
Subject(s) - oled , active matrix , thin film transistor , pixel , materials science , capacitor , voltage , optoelectronics , diode , threshold voltage , flat panel display , electronic engineering , electrical engineering , computer science , transistor , engineering , nanotechnology , artificial intelligence , layer (electronics)
We propose an improved pixel structure for large size and high resolution AM‐OLED(Active matrix‐Organic Light Emitting Diode) displays. The proposed structure is composed of 5 TFT and 1 capacitor. It can compensate not only the threshold voltage variation of LTPS(Low Temperature Poly Silicon) TFTs but also the voltage drop of supply voltage on panel. Moreover, it operates with simple structure and control signals. In this paper, we describe the operating principle and the characteristics of the proposed pixel structure and verify the performance by HSPICE simulation comparing with those of previously reported structures.