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UPSIDE WIDE VIEWING TWIST NEMATIC LIQUID CRYSTAL DISPLAY, CAPABLE OF SAVIGN PRODUCTION COSTS OF A COMPLEX POLARIZING PLATE USING AN EXTENDED TYPE RETARDATION FILM
UPSIDE WIDE VIEWING TWIST NEMATIC LIQUID CRYSTAL DISPLAY, CAPABLE OF SAVIGN PRODUCTION COSTS OF A COMPLEX POLARIZING PLATE USING AN EXTENDED TYPE RETARDATION FILM
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机译：可以在上方宽视角观看扭曲的液态液晶显示，并可以使用扩展型延迟膜来复杂化偏振板的大量生产成本
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摘要
PURPOSE: An upside wide viewing twist nematic liquid crystal display is provided to reduce the total amount of leaked light under a dark state at a main viewing angle using an extended type retardation film, thereby having a high front CR(Contrast Ratio).;CONSTITUTION: In a TN(Twisted Nematic) mode liquid crystal display device, a lower polarizing plate(10), a liquid crystal cell(30) and an upper polarizing plate(20) are successively laminated from a backlight unit(40). TAC(Tri-Acetatecellulose Film)s(13,23) are opposite to a liquid crystal cell of polarizers(11,21). Retardation films(14,24) are located in a liquid crystal cell side. The retardation films are laminated on the upper polarizing plate and the lower polarizing plate. The front retardation value of the phase difference film is 130-170nm. The refractive index of the retardation film is larger than or the same as 1.5 or smaller than or the same as 2.3.;COPYRIGHT KIPO 2010
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