A Sampling Switch Design Procedure for Active Matrix Liquid Crystal Displays(Circuit Synthesis,<Special Section>VLSI Design and CAD Algorithms)

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概要

• 論文の詳細を見る

• In the design of an active matrix LCD (Liquid Crystal Display), the ratio of the pixel voltage to the video voltage (RPV) of a pixel is an important factor of the performance of the LCD, since the pixel voltage of each pixel determines its transmitted luminance. Thus, of practical importance is the issue of how to maintain the admissible allowance of RPV of each pixel within a prescribed narrow range. This constraint on RPV is analyzed in terms of circuit parameters associated with the sampling switch and sampling pulse of a column driver in the LCD. With the use of a minimal set of such circuit parameters, a design procedure is described dedicatedly for the sampling switch, which intends to seek an optimal sampling switch as well as an optimal sampling pulse waveform. A number of experimental results show that an optimal sampling switch attained by the proposed procedure yields a source driver with almost 18% less power consumption than the one by manual design. Moreover, the percentage of the RPVs within 100±1% among 270 cases of fluctuations is 88.1% for the optimal sampling switch, but 46.7% for the manual design.

• 社団法人電子情報通信学会の論文
• 2006-12-01

著者

• Shirakawa Isao

  Graduate School Of Applied Informatics University Of Hyogo

• HASHIMOTO Masanori

  Graduate School of Information Science and Technology, Osaka University

• TSUKIYAMA Shuji

  Department of Electrical, Electronic and Communication Engineering, Chuo University

• TAKAHASHI Shingo

  Dept. of Electrical, Electronic, and Communication Eng., Chuo University

• TSUKIYAMA Shuji

  Dept. of Electrical, Electronic, and Communication Eng., Chuo University

• Tsukiyama Shuji

  Chuo Univ. Tokyo Jpn

• Tsukiyama Shuji

  Dept. Of Eece Chuo University

• Hashimoto Masanori

  Osaka Univ. Suita‐shi Jpn

• Hashimoto Masanori

  Department Of Communications And Computer Engineering Kyoto University

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