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Proceedings Paper

Frame-sequential miniature silicon display using mixed-mode twisted nematic liquid crystal
Author(s): Ho-Chi Huang; Po-Wing Cheng; HoiSing Kwok
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Paper Abstract

We present a mixed-mode twisted nematic (MTN) silicon display integrated with 4-bit digital data drivers. With high bandwidth of the digital data driver, pixel access time of less than 10 ns was achieved. Digital gray-scale addressing technique, which utilizes multiple fields per frame, synchronous field voltages and weighted field time, was applied to increase gray scale from 4 to 8 bits. Chromatic characterization of the display using 3-color-in-1 LED as light source was performed. Contrast ratios on pixel array were 49, 32 and 21, respectively, for red, green and blue colors at 3 V root-mean-squared voltage. It was observed that frame inversion gave rise to higher contrast ratio, while column inversion was less color dispersive. Using color sequential technique, we have demonstrated 4 bits per color for this highly integrated MTN display.

Paper Details

Date Published: 17 June 1998
PDF: 9 pages
Proc. SPIE 3421, Display Technologies II, (17 June 1998); doi: 10.1117/12.311044
Show Author Affiliations
Ho-Chi Huang, Hong Kong Univ. of Science and Technology (Hong Kong)
Po-Wing Cheng, Hong Kong Univ. of Science and Technology (Hong Kong)
HoiSing Kwok, Hong Kong Univ. of Science and Technology (Hong Kong)

Published in SPIE Proceedings Vol. 3421:
Display Technologies II
Fang-Chen Luo; Shin-Tson Wu; Shunsuke Kobayashi, Editor(s)

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