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    • 21. 发明授权
    • Surround signal processing apparatus
    • 环绕信号处理装置
    • US5761315A
    • 1998-06-02
    • US693009
    • 1996-08-06
    • Toshiyuki IidaTomohiro MouriYasuhisa Okabe
    • Toshiyuki IidaTomohiro MouriYasuhisa Okabe
    • H04S3/00H04R5/00
    • H04S7/302H04S2400/01H04S2420/01
    • A surround signal processing apparatus by which an inputted rear surround signal can be reproduced, together with two-channel front stereophonic signals, through a pair of speakers arranged in front of and in substantially right-and-left symmetry about a listener, in such a way that two sound images of the reproduced rear surround signal can be localized at two predetermined positions relative to the listener. The inputted rear surround signal is processed by a filter. The signal processed by the filter is added to one of the stereophonic signals, and then outputted to one of the pair of speakers. Further, an inversion signal of the filter-processed signal is added to the other of the stereophonic signals, and then outputted to the other of the speakers. Here, the transfer characteristics of the filter are determined as follows: (F-K)/(S-A), where S denotes transfer characteristics between one of the speakers and one of the listener's ears positioned on the same side as the speaker, respectively; A denotes transfer characteristics between one of the speakers and one of the listener's ears positioned on an opposite side to the speaker, respectively; F denotes transfer characteristics between one of the two positions at which two sound images are required to be localized and one of the listener's ears positioned on the same side as the image position, respectively; K denotes transfer characteristics between one of the two positions at which the two sound images are required to be localized and one of the listener's ears positioned on an opposite side to the image position; and/denotes a reverse convolution calculation.
    • 一种环绕声信号处理装置,通过这种环绕信号处理装置,可以通过一对扬声器连同双声道前置立体声信号一起再现一个输入的后部环绕信号,该对扬声器布置在听众的前面并且基本上左右对称, 再现的后环绕信号的两个声像可以被定位在相对于收听者的两个预定位置的方式。 输入的后置环绕信号由滤波器处理。 由滤波器处理的信号被加到一个立体声信号中,然后输出到一对扬声器中的一个。 此外,滤波处理信号的反相信号被添加到另一个立体声信号中,然后被输出到另一个扬声器。 这里,滤波器的传送特性确定如下:(F-K)/(S-A)其中S表示扬声器之一和位于与扬声器相同侧的收听者的耳朵中的一个之间的传送特性; A表示扬声器之一和分别位于扬声器相对侧的收听者的耳朵之间的传送特性; F表示两个位置之间的两个位置之间的传送特性,在这两个位置之间需要两个声像被定位,并且一个收听者的耳朵分别位于与图像位置相同的一侧; K表示需要定位两个声像的两个位置之一和位于与图像位置相反的一侧的收听者的耳朵中的一个之间的传送特性; 和/表示反向卷积计算。
    • 23. 发明授权
    • Liquid crystal panel and liquid crystal display
    • 液晶面板和液晶显示屏
    • US08593599B2
    • 2013-11-26
    • US12856075
    • 2010-08-13
    • Toshiyuki IidaTomoyuki HirayamaYutaka OhmoriMiyuki KurogiHisae ShimizuJunichi Nagase
    • Toshiyuki IidaTomoyuki HirayamaYutaka OhmoriMiyuki KurogiHisae ShimizuJunichi Nagase
    • G02F1/1335
    • C08G63/193C08G65/4006C08G65/4025G02F1/13363G02F2001/133637G02F2413/02G02F2413/11
    • [Object]The present invention provides a liquid crystal panel with which a display with extremely small change in color depending on a viewing direction can be realized, and a liquid crystal display including the same.[Solution to Problem]The liquid crystal panel includes: a first polarizer 30; a second polarizer 50; a first optical compensation layer 60; a second optical compensation layer 70; and a liquid crystal cell 40. The first polarizer 30 is arranged on one surface of the liquid crystal cell 40. The second polarizer 50 is arranged on the other surface of the liquid crystal cell 40. The first optical compensation layer 60 is arranged between the liquid crystal cell 40 and the first polarizer 30. The second optical compensation layer 70 is arranged between the liquid crystal cell 40 and the second polarizer 50. The first optical compensation layer 60 satisfies the following mathematical formulae (1) and (2). The second optical compensation layer satisfies the following mathematical formulae (3) and (4). nx>ny≧nz  (1) (Re[450]/Re[550]) nz  (3) (Rth[450]/Rth[550])≧1.10  (4)
    • 本发明提供一种可以实现具有根据观察方向具有非常小的颜色变化的显示器的液晶面板,以及包括该液晶显示器的液晶显示器。 [问题的解决方案]液晶面板包括:第一偏振片30; 第二偏振器50; 第一光学补偿层60; 第二光学补偿层70; 和液晶单元40.第一偏振片30配置在液晶单元40的一个表面上。第二偏振片50配置在液晶单元40的另一面上。第一光学补偿层60配置在 液晶单元40和第一偏振片30.第二光学补偿层70配置在液晶单元40和第二偏振片50之间。第一光学补偿层60满足下列数学式(1)和(2)。 第二光学补偿层满足下列数学式(3)和(4)。 (3)(Rth [450] / Rth [550])> = 1.10(4)(1)(Re [450] / Re [550])<1.00(2)nx> = ny> )
    • 28. 发明申请
    • METHOD FOR PRODUCING OPTICAL FILM, OPTICAL FILM, AND IMAGE DISPLAY
    • 用于生产光学膜,光学膜和图像显示器的方法
    • US20100321780A1
    • 2010-12-23
    • US12813592
    • 2010-06-11
    • Motoko KawasakiToshiyuki IidaNao MurakamiHiroyuki Yoshimi
    • Motoko KawasakiToshiyuki IidaNao MurakamiHiroyuki Yoshimi
    • G02B5/30B05D5/06
    • G02B5/3083G02F1/133634
    • A method for producing an optical film including a birefringent layer having a refractive index distribution satisfying nx>nz>ny that can be produced by a small number of steps, contains less foreign matter trapped therein, and has high productivity.An optical film including a birefringent layer, wherein the method includes steps of: forming a coating film by directly applying a material for forming a birefringent layer on the shrinkable film; shrinking the coating film in a first direction by shrinking the shrinkable film; and stretching a laminate of the shrinkable film and the coating film in a second direction orthogonal to the first direction, wherein the material for forming a birefringent layer contains at least one resin selected from the group consisting of norbornene resins, polycarbonate resins, cellulose resins, polyamides, and polyurethanes, and wherein the birefringent layer has a refractive index distribution satisfying nx>nz>ny.
    • 制造具有可以通过少量台阶产生的折射率分布满足nx> nz> ny的双折射层的光学膜的制造方法,其中含有较少的异物,并且生产率高。 一种包括双折射层的光学膜,其中所述方法包括以下步骤:通过在所述可收缩膜上直接施加用于形成双折射层的材料来形成涂膜; 通过收缩可收缩膜使第一方向上的涂膜收缩; 以及在与所述第一方向正交的第二方向上拉伸所述可收缩膜和所述涂膜的层压体,其中用于形成双折射层的材料含有选自降冰片烯树脂,聚碳酸酯树脂,纤维素树脂, 聚酰胺和聚氨酯,并且其中所述双折射层具有满足nx> nz> ny的折射率分布。
    • 29. 发明授权
    • Liquid crystal panel and liquid crystal display apparatus
    • 液晶面板和液晶显示装置
    • US07643117B2
    • 2010-01-05
    • US11996539
    • 2007-04-17
    • Toshiyuki IidaAkinori IzakiHisae SugiharaYutaka Ohmori
    • Toshiyuki IidaAkinori IzakiHisae SugiharaYutaka Ohmori
    • G02F1/1335G02F1/1337
    • G02F1/133634G02B5/3083G02F1/133528
    • There is provided a liquid crystal panel, in which a color shift in an oblique direction is small even when observed from any azimuth angle of 0° to 360°, and the viewing angle in the horizontal direction is wide. A liquid crystal panel according to the present invention includes: a liquid crystal cell; a first polarizer placed on one side of the liquid crystal cell; a second polarizer placed on the other side of the liquid crystal cell; and a first optical compensation layer and a second optical compensation layer placed between the first polarizer and the second polarizer, wherein: the first optical compensation layer is placed between the first polarizer and the liquid crystal cell; a slow axis direction of the first optical compensation layer is substantially perpendicular to an absorption axis direction of the first polarizer; the first optical compensation layer has a refractive index profile of nx>ny≧nz; the first optical compensation layer includes a retardation film (A) which contains a polyvinyl acetal-based resin and whose in-plane retardation value (Re[750]) at a wavelength of 750 nm is larger than an in-plane retardation value (Re[550]) at a wavelength of 550 nm; the second optical compensation layer is placed between the first optical compensation layer and the second polarizer; and the second optical compensation layer has a refractive index profile of nx=ny>nz.
    • 即使从0°至360°的任意方位角观察,倾斜方向的色移也较小,水平方向的视野宽的液晶面板。 根据本发明的液晶面板包括:液晶盒; 放置在液晶单元一侧的第一偏振片; 放置在液晶单元的另一侧的第二偏振器; 以及第一光学补偿层和第二光学补偿层,其设置在所述第一偏振器和所述第二偏振器之间,其中:所述第一光学补偿层被放置在所述第一偏振器和所述液晶单元之间; 第一光学补偿层的慢轴方向基本上垂直于第一偏振器的吸收轴方向; 第一光学补偿层具有nx> ny> = nz的折射率分布; 第一光学补偿层包括含有聚乙烯醇缩醛类树脂的相位差膜(A),并且在波长750nm处的面内延迟值(Re [750])大于面内延迟值(Re [550])在波长为550nm处; 第二光学补偿层被放置在第一光学补偿层和第二偏振器之间; 并且第二光学补偿层具有nx = ny> nz的折射率分布。