Pulsewidth Modulation With Current Uniformization for AM-OLEDs

被引：14

作者：

Kimura, Mutsumi ^{[1
]}

Suzuki, Daisuke ^{[1
]}

Koike, Masamichi ^{[1
]}

Sawamura, Shigeki ^{[1
]}

Kato, Masakazu ^{[1
]}

机构：

[1] Ryukoku Univ, Dept Elect & Informat, Otsu, Shiga 5202194, Japan

来源：

IEEE TRANSACTIONS ON ELECTRON DEVICES | 2010年 / 57卷 / 10期

关键词：

Active-matrix organic light-emitting diode display (AM-OLED); current uniformization; driving method; organic light-emitting diode (OLED); pulsewidth modulation; thin-film transistor (TFT); THIN-FILM TRANSISTORS; TIME-RATIO GRAYSCALE; POLY-SI TFTS;

D O I：

10.1109/TED.2010.2055871

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We propose a novel conception of driving methods, pulsewidth modulation with current uniformization, for active-matrix organic light-emitting diode displays (AM-OLEDs). This driving conception can simultaneously achieve precise grayscale and exceedingly improve luminance uniformity. We evaluate a concrete example, in which a pixel circuit includes seven transistors and a driving period consists of addressing-programming and light-emitting periods. The working and the tolerance against characteristic deviations of thin-film transistors and OLEDs are confirmed using circuit simulation and actual equivalent circuits.

引用

页码：2624 / 2630

页数：7

共 31 条

[11] Classification of driving methods for TFT-OLEDs and novel proposal using time ratio grayscale and current uniformization [J].

Kimura, M ;

Hara, Y ;

Hara, H ;

Okuyama, T ;

Inoue, S ;

Shimoda, T .

IEICE TRANSACTIONS ON ELECTRONICS, 2005, E88C (11) :2043-2050

[12] Table look-up model of thin-film transistors for circuit simulation using spline interpolation with transformation by y = x+log(x) [J].

Kimura, M ;

Inoue, S ;

Shimoda, T .

IEEE TRANSACTIONS ON COMPUTER-AIDED DESIGN OF INTEGRATED CIRCUITS AND SYSTEMS, 2002, 21 (09) :1101-1104

[13] Area-ratio gray-scale method to achieve image uniformity in TFT-LEPDs [J].

Kimura, M. ;

Maeda, H. ;

Matsueda, Y. ;

Kobayashi, H. ;

Miyashita, S. ;

Shimoda, T. .

Journal of the Society for Information Display, 2000, 8 (02) :93-97

[14] Low-temperature polysilicon thin-film transistor driving with integrated driver for high-resolution light emitting polymer display [J].

Kimura, M ;

Yudasaka, I ;

Kanbe, S ;

Kobayashi, H ;

Kiguchi, H ;

Seki, S ;

Miyashita, S ;

Shimoda, T ;

Ozawa, T ;

Kitawada, K ;

Nakazawa, T ;

Miyazawa, W ;

Ohshima, H .

IEEE TRANSACTIONS ON ELECTRON DEVICES, 1999, 46 (12) :2282-2288

[15]

KIMURA M, 1998, Patent No. 1069147

[16]

KIMURA M, 1999, P 6 INT DISPL WORKSH, P171

[17]

KIMURA M, 2002, Patent No. 2002169314

[18]

KIMURA M, 2008, PULSE WIDTH MODULATI, P1173

[19] Time-ratio grayscale and hopping scan with current uniformization for thin-film transistor driven organic light-emitting diode displays [J].

Kimura, Mutsumi ;

Hara, Yuji ;

Kato, Masakazu ;

Hara, Hiroyuki ;

Okuyama, Tomoyuki ;

Inoue, Satoshi ;

Shimoda, Tatsuya .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS, 2006, 45 (5B) :4407-4412

[20]

KOYAMA J, 2000, P AM LCD, P253

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