Junichi Yamashita
Sony Broadcast & Professional Research Laboratories
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Publication
Featured researches published by Junichi Yamashita.
SID Symposium Digest of Technical Papers | 2005
Junichi Yamashita; Katsuhide Uchino; Tetsuro Yamamoto; Tatsuya Sasaoka; Tetsuo Urabe
A new current programmed driving method with current subtraction pixel circuit has been developed for LTPS AM-OLED displays. The new driving method enables to program low brightness signal current for larger sized panel and compensate electrical characteristic variations of LTPS TFT. Consequently, we can achieve high contrast ratio and good pixel-to-pixel luminance uniformity for LTPS AM-OLED displays.
Proceedings of SPIE | 2006
Tetsuro Yamamoto; Junichi Yamashita; Akira Yumoto; Mitsuru Asano; Katsuhide Uchino; Mitsunobu Sekiya; Tatsuya Sasaoka; Tetsuo Urabe
We succeeded in the mass production of the 3.8-inch Half-VGA AM-OLED display, which is the largest one in the commercialized OLED displays. A new pixel circuit and a driving method for Low Temperature Poly-Si (LTPS) TFT were developed. The new pixel circuit and driving method can compensate not only the Vth variations but also the mobility variations of LTPS TFT. Consequently, we can achieve good pixel-to-pixel luminance uniformity.
Archive | 2014
Katsuhide Uchino; Junichi Yamashita; Tetsuro Yamamoto
Archive | 2006
Katsuhide Uchino; Junichi Yamashita
Archive | 2006
Katsuhide Uchino; Junichi Yamashita; Tetsuro Yamamoto
Archive | 2004
Junichi Yamashita; Katsuhide Uchino; Tetsuro Yamamoto
Archive | 2006
Junichi Yamashita; Katsuhide Uchino
Archive | 2010
Naoyuki Onoe; Junichi Yamashita; Daisuke Mochizuki; Naoki Kobayashi; Akihiko Kaino
Archive | 2008
Katsuhide Uchino; Junichi Yamashita; Tetsuo Minami
Archive | 2004
Katsuhide Uchino; Junichi Yamashita; Tetsuro Yamamoto
