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1. 发明授权

EP0637771B1 Method of producing a liquid crystal display apparatus having a random orientation alignment film 失效
标题翻译：制造液晶显示装置，包括用于任意取向的取向层的方法
公开(公告)号：EP0637771B1
公开(公告)日：2001-07-11
申请号：EP94112123.8
申请日：1994-08-03
申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
发明人： Iwai, Yoshio , Sato, Shigehiro , Mochizuki, Hideaki , Mizuno, Hiroaki , Kosako, Shinya , Kurai, Hisako
IPC分类号： G02F1/1337
CPC分类号： G02F1/133753

2. 发明公开

EP0978753A3 Reflection type liquid crystal display element 审中-公开
标题翻译：反射型的液晶显示元件
公开(公告)号：EP0978753A3
公开(公告)日：2000-12-20
申请号：EP99306044.1
申请日：1999-07-29
申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
发明人： Sekime, Tomoaki , Yamaguchi, Hisanori , Iwai, Yoshio
IPC分类号： G02F1/1335 , G02F1/139
CPC分类号： G02F1/1396 , G02F1/133504 , G02F1/133634 , G02F2203/02
摘要： A reflection type liquid crystal display element of normally white type and a reflection type liquid crystal display element of normally black type, both high in brightness and contrast, and capable of changing into black or white achromatically, are obtained. The constitution includes a liquid crystal cell having a first substrate, a second substrate, and a liquid crystal disposed between the first substrate and the second substrate, a light reflecting member disposed at the second substrate side, a polarizing film disposed outside of the first substrate, and an optical retardation film disposed between the polarizing film and the liquid crystal cell, in which the optical retardation film has a retardation value R C , and there is the relation of formula 1 or formula 2 supposing the retardation value of the liquid crystal layer when an effective voltage V on is applied to the liquid crystal cell to be " R on ".Formula 1: Ron + RC = (λ/4) + (λ/2)×(m)Formula 2: Ron + RC = (λ/2)×(m+1) where "λ" is the wavelength of light, and "m" is a positive integer including 0.

3. 发明授权

EP0982623B1 Reflection type liquid crystal display device 有权
标题翻译：一种反射型液晶显示装置
公开(公告)号：EP0982623B1
公开(公告)日：2005-06-08
申请号：EP99306365.0
申请日：1999-08-12
申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD
发明人： Yamaguchi, Hisanori , Sekime, Tomoaki , Iwai, Yoshio , Ogawa, Tetsu
IPC分类号： G02F1/139 , G02F1/13363
CPC分类号： G02F1/13363 , G02F1/1396 , G02F1/1397 , G02F2001/1398 , G02F2202/40 , G02F2203/02 , G02F2413/08 , G02F2413/105 , G02F2413/11 , G02F2413/13

4. 发明公开

EP1081535A2 Reflective liquid crystal display device 审中-公开
标题翻译：反射式液晶显示装置
公开(公告)号：EP1081535A2
公开(公告)日：2001-03-07
申请号：EP00113637.3
申请日：2000-06-28
申请人： Matsushita Electric Industrial Co., Ltd.
发明人： Tomoaki, Sekime , Yamaguchi, Hisanori , Iwai, Yoshio
IPC分类号： G02F1/13363 , G02F1/139
CPC分类号： G02F1/13363 , G02F1/133504 , G02F1/133553 , G02F2001/133531 , G02F2001/133637 , G02F2001/1398 , G02F2202/40 , G02F2413/02 , G02F2413/08 , G02F2413/13
摘要： The reflective liquid crystal display device uses only one polarizing film but achieves display of bright white and achromatic color with high contrast. The twisting angle of a nematic liquid crystal is set to 45° to 90°, and the retardation value of a liquid crystal layer is set to ΔnLC·dLC=0.20 µm to 0.30 µm. Two retardation films are configured with a structural component having small chromatic dispersion in refractive index anisotropy and a z coefficient from 03 to 1.0. Retardation values of these two retardation films are set to RF1=0.23 µm to 0.28 µm, and RF2=0.13 µm to 0.18 µm. When the angle of an absorption axis direction of the polarizing film is denoted by ϕP, and the angles of retardation axes directions of the two retardation films are denoted by ϕF1 and ϕF2, a set of Formulae ϕP=75°-195° , ϕP-ϕF1=95°- 115° , and ϕP-ϕF2=155°-175° are satisfied.
摘要翻译：反射型液晶显示装置仅使用一个偏振膜，但能够实现高对比度的明亮的白色和无彩色的显示。向列液晶的扭转角设定为45°至90°，并且液晶层的延迟值设定为ΔnLC·dLC =0.20μm至0.30μm。两个相位差膜由具有折射率各向异性中的小色散和z系数从03到1.0的结构部件构成。这两个相位差膜的延迟值设定为RF1 =0.23μm至0.28μm，RF2 =0.13μm至0.18μm。当偏振膜的吸收轴方向的角度由φP表示，并且两个延迟膜的延迟轴方向的角度由φF1和φF2表示时，一组公式为φP= 75°-195°，φP- φF1= 95°-115°，φP-φF2= 155°-175°。

5. 发明公开

EP0907096A2 Reflective color liquid crystal display 审中-公开
标题翻译： Farbig reflektierendeFlüssigkristallanzeige
公开(公告)号：EP0907096A2
公开(公告)日：1999-04-07
申请号：EP98117603.5
申请日：1998-09-16
申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
发明人： Sekime, Tomoaki , Iwai, Yoshio , Yamaguchi, Hisanori , Ogawa, Tetsu
IPC分类号： G02F1/1335
CPC分类号： G02F1/13363 , G02F1/1396 , G02F2202/40 , G02F2203/02 , G02F2413/08
摘要： In a reflective liquid crystal display device employing one polarization plate 11, the coloring of display in the halftone may be eliminated by making the chromaticity of reflected light, which varies in accordance with voltage applied on liquid crystal 17, as represented in terms of the Yxy color system satisfy the relationship, x - y ≤ 0 , and the values x, y are 0.23 ≤ x ≤ 0.35 and 0.23 ≤ y ≤ 0.37, respectively.
摘要翻译：在使用一个偏光板11的反射型液晶显示装置中，可以通过使根据施加在液晶17上的电压而变化的反射光的色度按照Yxy表示，可以消除半色调中显示的着色颜色系统满足关系x-y≤0，值x，y分别为0.23≤x≤0.35和0.23≤y≤0.37。

6. 发明公开

EP0982623A3 Reflection type liquid crystal display device 有权
标题翻译：反射型液晶显示装置
公开(公告)号：EP0982623A3
公开(公告)日：2001-08-08
申请号：EP99306365.0
申请日：1999-08-12
申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD
发明人： Yamaguchi, Hisanori , Sekime, Tomoaki , Iwai, Yoshio , Ogawa, Tetsu
IPC分类号： G02F1/139 , G02F1/13363
CPC分类号： G02F1/13363 , G02F1/1396 , G02F1/1397 , G02F2001/1398 , G02F2202/40 , G02F2203/02 , G02F2413/08 , G02F2413/105 , G02F2413/11 , G02F2413/13
摘要： A reflection type liquid crystal display device having a wide viewing angle, and capable of assuring a light utilization factor at or above a certain value for bright display even when conditions of an external light are varied is provided. The reflection type liquid crystal display device comprises (a) a liquid crystal cell comprising an upper substrate, a lower substrate and a liquid crystal layer between the substrates,(b)a polarizing film provided in a side of the upper substrate in the liquid crystal cell, (c) light reflecting means provided in a side of the lower substrate in the liquid crystal cell; and (d) an optical member provided between the polarizing film and the liquid crystal cell, and having a retardation axis when it is viewed in the normal direction. An angle between an absorption axis of the polarizing film and the retardation axis of the optical member is within a range of about 88° to about 92° or about -2° to about +2°. A retardation value in relation to the normal direction of the optical member is within a range of about 50 nm to about 500 nm.
摘要翻译：本发明提供一种反射型液晶显示装置，其具有宽视角，并且即使在外部光线的条件变化的情况下也能够确保用于明亮显示的特定值以上的光利用率。该反射型液晶显示装置包括：（a）液晶单元，包括上基板，下基板和位于基板之间的液晶层;（b）偏振膜，设置在液晶中上基板的一侧（c）设置在液晶单元的下基板侧的光反射装置; （d）设置在偏振片和液晶单元之间的光学部件，在法线方向观察时具有延迟轴。偏振膜的吸收轴与光学构件的延迟轴之间的角度在约88°至约92°或约-2°至约+ 2°的范围内。相对于光学部件的法线方向的延迟值在约50nm至约500nm的范围内。

7. 发明公开

EP0978753A2 Reflection type liquid crystal display element 审中-公开
标题翻译： Flüssigkristallanzeigeelementvom Reflexionstyp
公开(公告)号：EP0978753A2
公开(公告)日：2000-02-09
申请号：EP99306044.1
申请日：1999-07-29
申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
发明人： Sekime, Tomoaki , Yamaguchi, Hisanori , Iwai, Yoshio
IPC分类号： G02F1/1335 , G02F1/139
CPC分类号： G02F1/1396 , G02F1/133504 , G02F1/133634 , G02F2203/02
摘要： A reflection type liquid crystal display element of normally white type and a reflection type liquid crystal display element of normally black type, both high in brightness and contrast, and capable of changing into black or white achromatically, are obtained. The constitution includes a liquid crystal cell having a first substrate, a second substrate, and a liquid crystal disposed between the first substrate and the second substrate, a light reflecting member disposed at the second substrate side, a polarizing film disposed outside of the first substrate, and an optical retardation film disposed between the polarizing film and the liquid crystal cell, in which the optical retardation film has a retardation value R C , and there is the relation of formula 1 or formula 2 supposing the retardation value of the liquid crystal layer when an effective voltage V on is applied to the liquid crystal cell to be " R on ". Formula 1: R on + R C = (λ/4) + (λ/2)×(m) Formula 2: R on + R C = (λ/2)×(m+1) where "λ" is the wavelength of light, and "m" is a positive integer including 0.
摘要翻译：通常为白色的反射型液晶显示元件和通常为黑色的反射型液晶显示元件，其亮度和对比度均高，并且能够变色为黑色或白色。该结构包括具有第一基板，第二基板和设置在第一基板和第二基板之间的液晶的液晶单元，设置在第二基板侧的光反射部件，配置在第一基板的外侧的偏振膜以及设置在偏光膜和液晶单元之间的光学延迟膜，其中光学延迟膜具有延迟值RC，并且存在假设液晶层的延迟值的公式1或式2的关系，有效电压Von被施加到液晶单元为“Ron”。 $其中“λ”是光的波长，“m”是包括0的正整数。$

8. 发明公开

EP0378293A3 Liquid crystal display device and its driving method 失效
标题翻译：液晶显示装置及其驱动方法
公开(公告)号：EP0378293A3
公开(公告)日：1991-06-26
申请号：EP90300032.1
申请日：1990-01-03
申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
发明人： Wakita, Naohide , Iwai, Yoshio , Uemura, Tsuyoshi , Ohnishi, Hiroyuki , Johten, Kazuhiro , Kimura, Satoshi , Fujiwara, Shozo
IPC分类号： G09G3/36 , G02F1/137
CPC分类号： G09G3/3681 , G02F1/133512 , G02F1/141 , G09G3/2007 , G09G3/3629 , G09G3/3692 , G09G2310/0205 , G09G2310/06 , G09G2310/061 , G09G2320/0209
摘要： A liquid crystal display device and its driving method of the present invention have a voltage application scheme to control a stable condition of a gap between pixels, by applying a voltage to a liquid crystal panel (1) in which ferroelectric liquid crystal is sandwiched between substrates (2, 3) each having a plurality of electrodes (4, 5). It is possible to implement the black matrix conditions with a simple configuration without a light shielding layer by controlling the stable condition of the gap, to display a grey tone with a combination of pixels and a gap, or to raise the opening ratio by making the condition between adjacent pixels and a gap the same condition.

9. 发明公开

EP1081535A3 Reflective liquid crystal display device 审中-公开
标题翻译：反射式液晶显示装置
公开(公告)号：EP1081535A3
公开(公告)日：2002-09-25
申请号：EP00113637.3
申请日：2000-06-28
申请人： Matsushita Electric Industrial Co., Ltd.
发明人： Tomoaki, Sekime , Yamaguchi, Hisanori , Iwai, Yoshio
IPC分类号： G02F1/13363 , G02F1/139 , G02F1/1335
CPC分类号： G02F1/13363 , G02F1/133504 , G02F1/133553 , G02F2001/133531 , G02F2001/133637 , G02F2001/1398 , G02F2202/40 , G02F2413/02 , G02F2413/08 , G02F2413/13
摘要： The reflective liquid crystal display device uses only one polarizing film (10) but achieves display of bright white and achromatic color with high contrast. The twisting angle of a nematic liquid crystal is set to 45° to 90°, and the retardation value of a liquid crystal layer (17) is set to ΔnLC·dLC=0.20 µm to 0.30 µm. Two retardation films (11a,11b) are configured with a structural component having small chromatic dispersion in refractive index anisotropy and a z coefficient from 03 to 1.0. Retardation values of these two retardation films are set to RF1=0.23 µm to 0.28 µm, and RF2=0.13 µm to 0.18 µm. When the angle of an absorption axis direction of the polarizing film is denoted by φP, and the angles of retardation axes directions of the two retardation films are denoted by φF1 and φF2, a set of Formulae φP=75°-195°, φP-φF1=95°- 115°, and φP-φF2=155°-175° are satisfied.
摘要翻译：该反射式液晶显示装置仅使用一个偏振膜（10），但是以高对比度实现亮白色和无彩色的显示。向列液晶的扭转角设定为45°至90°，并且液晶层（17）的延迟值设定为ΔnLC·dLC =0.20μm至0.30μm。两个相位差膜（11a，11b）由折射率各向异性的色散小且结构成分由03〜1.0的z系数构成。这两个相位差膜的延迟值设定为RF1 =0.23μm至0.28μm，RF2 =0.13μm至0.18μm。当偏振膜的吸收轴方向的角度由φP表示，并且两个延迟膜的延迟轴方向的角度由φF1和φF2表示时，一组公式为φP= 75°-195°，φP- φF1= 95°-115°，φP-φF2= 155°-175°。

10. 发明公开

EP1045272A2 Reflective color liquid crystal display device 审中-公开
标题翻译：的反射彩色液晶显示装置
公开(公告)号：EP1045272A2
公开(公告)日：2000-10-18
申请号：EP00107323.8
申请日：2000-04-04
申请人： Matsushita Electric Industrial Co., Ltd.
发明人： Iwai, Yoshio , Yamaguchi, Hisanori , Sekime, Tomoaki , Sakurai, Yoshihiro , Ogawa, Tetsu
IPC分类号： G02F1/1335
CPC分类号： G02F1/133371 , G02F1/133377 , G02F1/133514 , G02F2203/02 , G02F2413/09
摘要： Deviation in phase difference of the light passing each of the red, green, and blue dots, i.e., 2π*(α*d R *Δn R +Re R )/λ R , 2π*(α*d G *Δn G +Re G )/λ G , and 2π*(α*d B *Δn B +Re B )/λ B , are matched when thickness of a liquid crystal layer 7 at red, green, and blue dots are d R , d G , and d B ; wavelength of a visible light passing each dot is λ R , λ R , and λ B ; refractive index anisotropy of the liquid crystal layer 7 in the visible light wavelengths λ R , λ R , and λ B is Δn R , Δn G , and Δn B ; and retardations of a retardation plate are Re R , Re G , and Re B . This enables the achievement of a reflective color LCD with high achromatic color during white display and high contrast display.

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