講演名 | 2000/10/13 Improvement of uniformity in active-matrix light-emitting diodes , |
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抄録(英) | An approach to improve the drive-current uniformity of the low-temperature POly-Si(LTPS)thin film transistors (TFTs)applied to active-matrix organic light-emitting diodes(AMOLED)device was investigated. The non-uniformity feature of LTPS-TFTs is due to the fact that the grain boundaries and sizes of poly-Si are nearly non-controllable during the laser annealing process. In order to obtain the better uniformity of drive current and performance of gray-scale linearity for AMOLED pixels, we suggest that a resistor connected serially to the source terminal of the drive TFT should improve the non-uniformity feature dramatically. Alter measuring the I-V characteristics, a simulation process based on the basic circuit theory was proceeded to calculate the characteristics with a serially connected resistor. The calculated results revealed that the maximum current Variation could be changed from 45%(without a resistor)to 10%(with a serially connected resistor)when the threshold voltage of drive TFT varies 0.3V. |
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キーワード(英) | Low temperature poly-Si / thin-film / transistors / active-matrix organic light-emitting / diodes / gray-scale / pixel / resistor |
資料番号 | EID2000-110 |
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研究会 | EID |
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開催期間 | 2000/10/13(から1日開催) |
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申込み研究会 | Electronic Information Displays (EID) |
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本文の言語 | ENG |
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タイトル(英) | Improvement of uniformity in active-matrix light-emitting diodes |
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キーワード(1)(和/英) | / Low temperature poly-Si |
第 1 著者 氏名(和/英) | / Yung-Hui Yeh |
第 1 著者 所属(和/英) | Electronic Research & Service Organization/Industrial Technology Research Institute, Hsinchu, Taiwan, R. O. C. |
発表年月日 | 2000/10/13 |
資料番号 | EID2000-110 |
巻番号(vol) | vol.100 |
号番号(no) | 356 |
ページ範囲 | pp.- |
ページ数 | 4 |
発行日 |