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Jpn. J. Appl. Phys. 38 (1999) pp. 809-813  |Next Article|  |Table of Contents|
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Optimization of Panel Parameters and Drive Signals for High-Speed Matrix Addressing of a Bistable Twisted-Nematic Liquid Crystal Display

Gi-Dong Lee1,2,, Ku Hyun Park1, Ki Chul Jang1, Tae-Hoon Yoon1,2, Jae Chang Kim1,2 and Eung-Sang Lee3

1Department of Electronics Engineering, Pusan National University, Pusan 609-735, Korea
2Research Institute of Computer, Information and Communication, Pusan National University, Pusan 609-735, Korea
3Samsung Display Devices Co., Suwon 442-390, Korea

(Received September 8, 1998; accepted for publication November 6, 1998)

In this paper, we introduce a method to optimize panel parameters and drive signals in a matrix-addressed bistable twisted-nematic (BTN) liquid crystal display (LCD) panel. We measure the effect of data pulses on optical switching characteristics in a BTN LC cell to model the effect theoretically. We introduce a weighting function to model the effect of data pulses on the switching energy as a function of time. Once the weighting function is known, we can estimate the maximum number of lines for a multiplexing operation at a given frame rate by calculating the minimum data pulse width. By characterizing a unit cell while varying panel parameters (for example, d/p ratio), we can optimize parameters for high-speed operation. We found that our theoretical predictions agree very well with experimental results.

URL: http://jjap.jsap.jp/link?JJAP/38/809/
DOI: 10.1143/JJAP.38.809


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References | Citing Articles (3)

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