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Your search keyword '"Yamazaki, Shunpei"' showing total 405 results
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405 results on '"Yamazaki, Shunpei"'

401. Low Power 6.0-inch Extended Graphics Array Transmissive Liquid Crystal Display using Indium Gallium Zinc Oxide Semiconductor with Variable Frame Frequency

Author

Amano, Seiko, Miyake, Hiroyuki, Nishi, Takeshi, Hirakata, Yoshiharu, Koyama, Jun, Okazaki, Kenichi, Sakakura, Masayuki, and Yamazaki, Shunpei

Abstract

An oxide semiconductor thin film transistor (TFT) has much higher mobility than an amorphous silicon (a-Si) TFT, which leads to realization of larger displays with higher definition. Moreover, it has much lower off leak current than the a-Si TFT. We have focused on this feature and successfully fabricated a low-power 6.0-inch extended graphics array (XGA) transmissive liquid crystal display (LCD) with source and scan drivers integrated on a glass substrate. In order to realize low power consumption, unnecessary rewriting is not performed at the time of still image display. The interval between rewrite operations in our panel could be extended to about 1 min (= 1/60 fps) at the time of displaying still images. The power consumption of the drivers at 1/60 fps can be about 1/3,600 of that at 60 fps. We also discuss burn-in and flickers, which might be observed when this driving method is applied.

Published
2011
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402. 5,291‐ppi OLED display enabled by monolithic integration of C‐axis‐aligned crystalline IGZO FET and Si CMOS.

Author

Kato, Kiyoshi, Kobayashi, Hidetomo, Shishido, Hideaki, Isa, Toshiyuki, Aoyama, Tomoya, Jimbo, Yasuhiro, Hodo, Ryota, Kusunoki, Koji, Kunitake, Hitoshi, and Yamazaki, Shunpei

Subjects
*INDIUM gallium zinc oxide, *BREAKDOWN voltage, *LINE drivers (Integrated circuits), *ORGANIC light emitting diodes, *HIGH voltages, *LIGHT emitting diodes
Abstract

For the first time in the world, we have fabricated an organic light‐emitting diode (OLED) display that monolithically integrates Si CMOS and oxide semiconductor FETs (OSFETs). OSFETs can be monolithically stacked on Si CMOS. With this OS/Si monolithic stack technology, we have fabricated driver circuits with Si CMOS and pixel circuits with OSFETs. This enables displays to have thin bezels. In addition, fabricating pixel circuits with OSFETs, which have higher breakdown voltage than Si CMOS, allows the use of tandem OLED devices that require high driving voltage. This enables an OLED display with a pixel density over 5,000 ppi. [ABSTRACT FROM AUTHOR]

Published
2022
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403. A 5291‐ppi organic light‐emitting diode display using field‐effect transistors including a c‐axis aligned crystalline oxide semiconductor.

Author

Katsui, Shuichi, Kobayashi, Hidetomo, Nakagawa, Takashi, Tamatsukuri, Yuki, Shishido, Hideaki, Uesaka, Shogo, Yamaoka, Ryohei, Nagata, Takaaki, Aoyama, Tomoya, Nei, Kosei, Okazaki, Yutaka, Ikeda, Takayuki, and Yamazaki, Shunpei

Subjects
*SEMICONDUCTORS, *FIELD-effect transistors, *METAL oxide semiconductor field-effect transistors, *DIODES, *VIRTUAL reality
Abstract

C‐axis‐aligned crystalline‐oxide semiconductor field‐effect transistor (CAAC‐OS FET) can be scaled down to a width and a length of 60 nm. We fabricated an organic light‐emitting diode (OLED) display with more than 5000 ppi, which is required in virtual reality (VR) display applications, using CAAC‐OS FETs as the backplane. [ABSTRACT FROM AUTHOR]

Published
2019
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404. OLED display incorporating organic photodiodes for fingerprint imaging.

Author

Kamada, Taisuke, Hatsumi, Ryo, Watanabe, Kazunori, Kawashima, Susumu, Katayama, Masahiro, Adachi, Hiroki, Ishitani, Tetsuji, Kusunoki, Koji, Kubota, Daisuke, and Yamazaki, Shunpei

Subjects
*PHOTODIODES, *ORGANIC light emitting diodes, *HUMAN fingerprints, *IMAGE sensors, *SEMICONDUCTORS, *DIODES
Abstract

This paper introduces and demonstrates a display that incorporates an organic image sensor formed in the same pixel as organic light‐emitting diodes through side‐by‐side patterning. The potential applications of this display include touch sensing, scanning, and fingerprint identification at any location on the entire display screen, without the necessity of an external module. [ABSTRACT FROM AUTHOR]

Published
2019
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