Classification of Driving Methods for TFT-OLEDs and Novel Proposal Using Time Ratio Grayscale and Current Uniformization

Mutsumi KIMURA; Yuji HARA; Hiroyuki HARA; Tomoyuki OKUYAMA; Satoshi INOUE; Tatsuya SHIMODA

doi:10.1093/ietele/e88-c.11.2043

Classification of Driving Methods for TFT-OLEDs and Novel Proposal Using Time Ratio Grayscale and Current Uniformization

Mutsumi KIMURA, Yuji HARA, Hiroyuki HARA, Tomoyuki OKUYAMA, Satoshi INOUE, Tatsuya SHIMODA

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Driving methods for TFT-OLEDs are explained with their features and classified from the viewpoints of grayscale methods and uniformizing methods. This classification leads us to a novel proposal using time ratio grayscale and current uniformization. This driving method maintains current uniformity and simultaneously overcomes charging shortage of the pixel circuit for low grayscale levels and current variation due to the shift of operating points. Tolerance toward degraded characteristics, linearity of grayscale and luminance uniformity against degraded characteristics are confirmed using circuit simulation.

Publication: IEICE TRANSACTIONS on Electronics Vol.E88-C No.11 pp.2043-2050

Publication Date: 2005/11/01

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DOI: 10.1093/ietele/e88-c.11.2043

Type of Manuscript: REVIEW PAPER

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Mutsumi KIMURA, Yuji HARA, Hiroyuki HARA, Tomoyuki OKUYAMA, Satoshi INOUE, Tatsuya SHIMODA, "Classification of Driving Methods for TFT-OLEDs and Novel Proposal Using Time Ratio Grayscale and Current Uniformization" in IEICE TRANSACTIONS on Electronics, vol. E88-C, no. 11, pp. 2043-2050, November 2005, doi: 10.1093/ietele/e88-c.11.2043.
Abstract: Driving methods for TFT-OLEDs are explained with their features and classified from the viewpoints of grayscale methods and uniformizing methods. This classification leads us to a novel proposal using time ratio grayscale and current uniformization. This driving method maintains current uniformity and simultaneously overcomes charging shortage of the pixel circuit for low grayscale levels and current variation due to the shift of operating points. Tolerance toward degraded characteristics, linearity of grayscale and luminance uniformity against degraded characteristics are confirmed using circuit simulation.
URL: https://globals.ieice.org/en_transactions/electronics/10.1093/ietele/e88-c.11.2043/_p

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@ARTICLE{e88-c_11_2043,
author={Mutsumi KIMURA, Yuji HARA, Hiroyuki HARA, Tomoyuki OKUYAMA, Satoshi INOUE, Tatsuya SHIMODA, },
journal={IEICE TRANSACTIONS on Electronics},
title={Classification of Driving Methods for TFT-OLEDs and Novel Proposal Using Time Ratio Grayscale and Current Uniformization},
year={2005},
volume={E88-C},
number={11},
pages={2043-2050},
abstract={Driving methods for TFT-OLEDs are explained with their features and classified from the viewpoints of grayscale methods and uniformizing methods. This classification leads us to a novel proposal using time ratio grayscale and current uniformization. This driving method maintains current uniformity and simultaneously overcomes charging shortage of the pixel circuit for low grayscale levels and current variation due to the shift of operating points. Tolerance toward degraded characteristics, linearity of grayscale and luminance uniformity against degraded characteristics are confirmed using circuit simulation.},
keywords={},
doi={10.1093/ietele/e88-c.11.2043},
ISSN={},
month={November},}

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TY - JOUR
TI - Classification of Driving Methods for TFT-OLEDs and Novel Proposal Using Time Ratio Grayscale and Current Uniformization
T2 - IEICE TRANSACTIONS on Electronics
SP - 2043
EP - 2050
AU - Mutsumi KIMURA
AU - Yuji HARA
AU - Hiroyuki HARA
AU - Tomoyuki OKUYAMA
AU - Satoshi INOUE
AU - Tatsuya SHIMODA
PY - 2005
DO - 10.1093/ietele/e88-c.11.2043
JO - IEICE TRANSACTIONS on Electronics
SN -
VL - E88-C
IS - 11
JA - IEICE TRANSACTIONS on Electronics
Y1 - November 2005
AB - Driving methods for TFT-OLEDs are explained with their features and classified from the viewpoints of grayscale methods and uniformizing methods. This classification leads us to a novel proposal using time ratio grayscale and current uniformization. This driving method maintains current uniformity and simultaneously overcomes charging shortage of the pixel circuit for low grayscale levels and current variation due to the shift of operating points. Tolerance toward degraded characteristics, linearity of grayscale and luminance uniformity against degraded characteristics are confirmed using circuit simulation.
ER -