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Reducing image sticking in AMOLED displays with time-ratio gray scale by analog calibration
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Shin, Dong-Yong | - |
dc.contributor.author | Woo, Jong-Kwan | - |
dc.contributor.author | Hong, Yongtaek | - |
dc.contributor.author | Kim, Hye-Dong | - |
dc.contributor.author | Kim, Keum-Nam | - |
dc.contributor.author | Kim, Do-Ik | - |
dc.contributor.author | Yoo, Myoung-Hwan | - |
dc.contributor.author | Kim, Suhwan | - |
dc.date.accessioned | 2010-06-29T23:45:09Z | - |
dc.date.available | 2010-06-29T23:45:09Z | - |
dc.date.issued | 2009-09 | - |
dc.identifier.citation | Journal of the Society for Information Display, 17, 705-713 | en |
dc.identifier.issn | 1071-0922 | - |
dc.identifier.uri | https://hdl.handle.net/10371/68012 | - |
dc.description.abstract | Early loss of image uniformity has been a critical drawback of active-matrix organic lightemitting-
diode (AMOLED) displays operated in time-ratio gray-scale mode. This problem is addressed with an analog calibration technique which measures the voltage across eachOLED for a given current and subsequently controls the supply voltage of pixels and the voltage drop across the driving thin-film transistor (TFT) of each OLED. The uniformity of test cells, which were aged to produce image sticking in a chessboard pattern, were improved. A measure of image sticking, called the extracted imagesticking value (EISV), was formulated, which is developed and used for the quantitative evaluation of the calibration method. OLED voltages over a range of about 0.35 V were compensated to produce more uniform OLED currents than those before aging. The variation of luminance associated with image sticking was reduced by about 40% for a full-white image after between 2 and 10 hours of accelerated aging with a constant voltage of 8 V across an OLED. | en |
dc.language.iso | en | en |
dc.publisher | Society For Information Display | en |
dc.subject | OLED | en |
dc.subject | image sticking | en |
dc.subject | time-ratio gray scale | en |
dc.subject | digital driving | en |
dc.title | Reducing image sticking in AMOLED displays with time-ratio gray scale by analog calibration | en |
dc.type | Article | ko_KR |
dc.contributor.AlternativeAuthor | 신동용 | - |
dc.contributor.AlternativeAuthor | 우종관 | - |
dc.contributor.AlternativeAuthor | 홍용택 | - |
dc.contributor.AlternativeAuthor | 김금남 | - |
dc.contributor.AlternativeAuthor | 김도익 | - |
dc.contributor.AlternativeAuthor | 유명환 | - |
dc.contributor.AlternativeAuthor | 김혜동 | - |
dc.contributor.AlternativeAuthor | 김수환 | - |
dc.identifier.doi | 10.1889/JSID17.9.705 | - |
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