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日立公司研制成占空比为1∶350到1∶480的12英寸超扭曲向列型(STN)彩色和12英寸黑白单色液晶显示板。早先该公司的超扭曲向列型液晶显示的占空比仅为1∶240。日立公司在研制新型液晶显示时改进了取向控制技术,提高了上下玻璃板的均匀度,并且为高密度装配提供了具有192条引线的TAB 产品。日立公司的高清晰度黑白单色液晶显示板具有1024×768象点,有效显示面积为220×165毫米,它采用冷阴极荧光灯光电导体系统作背光源,对比度为1∶15,亮度80新烛光/米~2。彩色显示具有640×480象点,点距为0. 115毫米×0. 345毫米,对比度1∶10。
Hitachi has developed 12-inch Super Twisted Nematic (STN) color and 12-inch monochrome LCD panels with duty ratios of 1: 350 to 1: 480. Earlier the company’s super twisted nematic liquid crystal display duty cycle is only 1: 240. Hitachi has improved orientation control technology in the development of new liquid crystal displays, improved the uniformity of the upper and lower glass plates, and provided TAB with 192 leads for high-density assembly. Hitachi’s high-resolution black and white monochrome LCD panels with 1024 × 768 pixels, the effective display area of 220 × 165 mm, which uses cold cathode fluorescent tube photoconductor system for the backlight, the contrast ratio of 1:15, the brightness of 80 new candles / M ~ 2. Color display with 640 × 480 pixels, dot pitch of 0. 115 mm × 0. 345 mm, contrast 1:10.