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71. 发明专利

JPS62169117A AUTOMATICALLY DIMMING ADJUSTING PROJECTION TYPE DISPLAY DEVICE 失效
公开(公告)号：JPS62169117A
公开(公告)日：1987-07-25
申请号：JP1138686
申请日：1986-01-22
申请人： SEIKO EPSON CORP
发明人： NAKAMURA JUNICHI , KAMAKURA HIROSHI , ONO TAKESHI , YAJIMA FUMITAKA , SONEHARA TOMIO , ARIGA SHUJI
IPC分类号： H04N5/74 , G02F1/13 , G02F1/133
摘要： PURPOSE:To always project pictures at appropriate light quantities, by controlling the light emitting quantity of projecting light source in accordance with the circumferential brightness. CONSTITUTION:Picture information is added to projecting rays of light emitted from a projecting light source 1 through a light valve 2 controlled by a light valve controller 8 and the projecting rays of light are projected as a picture display on a screen 4 through a projection lens 3. In this case, the external rays of light made incident from a light receiving element 5 are supplied to a signal amplifier 6 as electric signals, namely, circumferential light measured results, and sent to a projecting light quantity-controlled power supply device 7 after the electric signals are signal-amplified. At the power supply device 7, the power supply device 7 is controlled so that an appropriate light quantity can be obtained to the circumferential external rays of light in accordance with the electric signals and the controlled results are fed back to the projecting light source 1. As a result, projecting light quantities which are appropriate to the circumferential light quantity can always be projected on the screen.

72. 发明专利

JPS62147444A REFLECTION TYPE SCREEN 失效
公开(公告)号：JPS62147444A
公开(公告)日：1987-07-01
申请号：JP28741585
申请日：1985-12-20
申请人： SEIKO EPSON CORP
发明人： YAJIMA FUMITAKA , KAMAKURA HIROSHI , ONO TAKESHI , NAKAMURA JUNICHI , SONEHARA TOMIO , ARIGA SHUJI
IPC分类号： G03B21/60
摘要： PURPOSE:To obtain an image with a large contrast ratio by using a screen formed by providing a diffuse reflecting layer of metallic foil, etc., which has a fine projection-recess part on the surface and anisotropic diffuse reflection characteristics on the surface of a backing substrate, and forming a louver layer which is constituted at fine pitch on the surface of the screen. CONSTITUTION:The fine projection-recess part is provided on the surface of the backing substrate 1 made of resin, wood, etc., metallic foil of Al, etc., is stuck by vapor deposition, adhesion, etc., to form the diffuse reflecting layer 2 which has large anisotropic diffuse reflection characteristics, and the parallel louver layer 3 is provided on the surface, thereby constituting a reflection type screen. The louver layer 3 cuts off light whose angle is larger than an angle determined by the pitch and thickness, so the angle of visibility is also determined by the louver layer 3. Therefore, an observer is not affected when the cut-off angle of the louver layer 3 is set to 20-30 deg. above and below the perpendicular to the screen. Further, the screen gain of the diffuse reflecting layer is decreased and the diffusibility is increased to increase the right and left angle of visibility, so the angle of visibility is wide, specially, in the right-left direction even in bright lighting and a bright image is obtained.

73. 发明专利

JPS62145218A PROJECTION TYPE DISPLAY DEVICE 失效
公开(公告)号：JPS62145218A
公开(公告)日：1987-06-29
申请号：JP28645185
申请日：1985-12-19
申请人： SEIKO EPSON CORP
发明人： ONO TAKESHI , KAMAKURA HIROSHI , NAKAMURA JUNICHI , SONEHARA TOMIO , ARIGA SHUJI , YAJIMA FUMITAKA
IPC分类号： G09F9/30 , G02F1/133 , G02F1/1333 , G02F1/1335 , G02F1/13357 , G02F1/136 , G02F1/1368 , G03B21/00 , G09F9/00 , G09F9/35 , G09G3/36
摘要： PURPOSE:To reduce the leak current of a thin-film transistor (TR) by shielding the part of the thin-film TR of a liquid crystal panel from light. CONSTITUTION:Liquid crystal 14 is changed between a quarts glass substrate 12 and a glass substrate 13. A picture element electrodes 18 of an ITO film thin-film TRs 17, gate lines 15, and source lines 16 are formed on the quartz glass substrate 11. A light shield layer 19 which is printed or dyed and a common electrode 20 of an ITO film are formed on the glass substrate 12. A gate electrode 13 is selected successively in the order of 15-1, 15-2-15-N and thin film TRs 17 connected to the selected gate electrodes 15 are turned on.

74. 发明专利

JPS6256982A PROJECTION TYPE DISPLAY UNIT 失效
公开(公告)号：JPS6256982A
公开(公告)日：1987-03-12
申请号：JP19647485
申请日：1985-09-05
申请人： SEIKO EPSON CORP
发明人： ONO TAKESHI , KAMAKURA HIROSHI , SONEHARA TOMIO , NAKAMURA JUNICHI , ARIGA SHUJI , YAJIMA FUMITAKA
IPC分类号： G09F9/00 , G02F1/133 , G02F1/1335 , G03B21/00 , H04N5/74

75. 发明专利

JPS6230223A PRODUCTION OF COLOR LIQUID CRYSTAL DISPLAY 失效
公开(公告)号：JPS6230223A
公开(公告)日：1987-02-09
申请号：JP16944385
申请日：1985-07-31
申请人： SEIKO EPSON CORP
发明人： ARIGA SHUJI
IPC分类号： G02B5/20 , G02F1/133 , G02F1/1335 , G02F1/1343 , G09F9/00 , G09F9/30 , G09F9/35
摘要： PURPOSE:To obtain a color liquid crystal display having high contrast and high image quality without having parallax by providing a thin film consisting of a metallic alkoxide compd. and the hydrolyzate thereof by a sol-gel method on a color filter layer and forming striped transparent electrodes on the thin film. CONSTITUTION:The three primaly color filter layer 2 is formed on a transparent glass substrate 1 and an alcohol soln. of tetraethoxysilane or tetramethoxysilane or aluminum isopropoxide or titanium isopropoxide as the metallic alkoxide compd. is coated thereon and is subjected to a heat treatment, by which an intermediate layer 3 is obtd. The striped transparent electrodes 4 are formed as the transparent electrodes on such intermediate layer 3. A striped ITO film 7 is similarly formed on a counter substrate. The liquid crystal panel is so assembled that the rubbing directions of the substrates are made 90 deg. with each other and a twisted nematic liquid crystal is sealed therein.

76. 发明专利

JPS621391A PROJECTION TYPE COLOR DISPLAY DEVICE 失效
公开(公告)号：JPS621391A
公开(公告)日：1987-01-07
申请号：JP14138885
申请日：1985-06-27
申请人： SEIKO EPSON CORP
发明人： KAMAKURA HIROSHI , SONEHARA TOMIO , ONO TAKESHI , NAKAMURA JUNICHI , ARIGA SHUJI , YAJIMA FUMITAKA
IPC分类号： G02F1/1335 , G02F1/17 , G02F1/19 , H04N9/31
摘要： PURPOSE:To improve the contrast of a projected picture by separating the light of a light source into plural color rays of light by a cube prism and forming an image with a transmission type light valve corresponding to color rays of light. CONSTITUTION:The white light emitted from a light source 40 is separated into 3 colors by the first cube prism 42. Separated color rays of light are made incident on a transmission type light valve 44. The light valve 44 shows a light transmissivity corresponding to red, blue, and green images, and color rays of light are synthesized into a display picture by the second cube prism 45. Since 4 rectangular prisms are so combined that their dichroic films are protected in the cube prism and the incidence surface is coated with a reflection preventing film, the collimated light is separated into colors and colors are synthesized efficiently.

77. 发明专利

JPS61254932A LIQUID CRYSTAL ELECTROOPTIC DEVICE 失效
公开(公告)号：JPS61254932A
公开(公告)日：1986-11-12
申请号：JP9649585
申请日：1985-05-07
申请人： SEIKO EPSON CORP
发明人： ARIGA SHUJI , SONEHARA TOMIO
IPC分类号： G02F1/133 , G02F1/136 , G02F1/1368 , G02F1/137 , G02F1/139 , G09G3/18
摘要： PURPOSE:To increase a response speed and to obtain high contrast by applying alternately a liquid crystal composite with electric fields whose frequencies are lower and higher than a cross frequency at which dielectric anisotropy is zero. CONSTITUTION:When an electric field of frequency fL lower than the cross frequency where the dielectric anisotropy is zero is applied to a cholesteric phase having the planar structure of the liquid crystal composite whose dielectric anisotropy is positive at the lower frequency and negative at a higher frequency fH, a force operates to direct axes of molecules in the direction of the electric field, so that a nematic phase is entered. When a voltage of frequency fH is applied, on the other hand, the axes of molecules are directed at right angles and transition to not focal conic structure, but the planar structure is made. Thus, electric fields of different frequencies are applied alternately to obtain high-speed switch operation having not memory property and the spiral pitch of the cholesteric phase is made smaller to increase the contrast of a phase shift type guest-host mode display.

78. 发明专利

JPS61138286A Liquid crystal electrooptic apparatus 失效
标题翻译：液晶电子设备
公开(公告)号：JPS61138286A
公开(公告)日：1986-06-25
申请号：JP26125084
申请日：1984-12-11
申请人： Seiko Epson Corp
发明人： SONEHARA TOMIO , ARIGA SHUJI
IPC分类号： G09F9/35 , G02F1/133 , G02F1/1347

79. 发明专利

JPS61128228A Liquid-crystal optical switch 失效
标题翻译：液晶光开关
公开(公告)号：JPS61128228A
公开(公告)日：1986-06-16
申请号：JP25016584
申请日：1984-11-27
申请人： Seiko Epson Corp
发明人： ARIGA SHUJI , SONEHARA TOMIO
IPC分类号： G02F1/133 , G02F1/1337 , G02F1/137
摘要： PURPOSE: To obtain a liquid-crystal optical switch capable of high-speed switching by providing a ρ cell charged with liquid crystal oriented in quasi- parallel so that pre-tilt directions of liquid-crystal molecules on substrate interfaces are symmetric about the center plane between substrates.
CONSTITUTION: The liquid-crystal optical switch which has a means for cutting off linear polarized light by total reflection in liquid-crystal phase is provided with the liquid-crystal cell charged with the liquid crystal oriented in quasi- parallel between a couple of transparent substrates so that the pre-tilt direction of liquid-crystal molecules on one substrate interface and that of the other are symmetric about the center plane between both substrates. It is known that response speeds of the π cell in an ON state 5 wherein liquid-crystal molecules are oriented in the direction of an applied electric field and in a transient safe state 4 wherein no electric field is applied are far faster than the response speed of other structure transfer. Therefore, when linear polarized light having its transmission axis in the same or nearly the same direction with the liquid-crystal molecular axes of the ρ cell is made incident, the refrac tive index of the π cell is converted between n1 and n2 fast at each angle of incidence.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：为了获得能够高速切换的液晶光开关，通过提供以准平行取向的液晶的菱形单元，使得基板界面上的液晶分子的预倾斜方向关于中心平面对称在基板之间。构成：具有在液晶相中通过全反射而切断线偏振光的装置的液晶光学开关设置有液晶单元，该液晶单元被充电为准平行于一对透明基板之间的液晶使得一个衬底界面上的液晶分子的预倾斜方向和另一个衬底界面上的液晶分子的预倾斜方向关于两个衬底之间的中心平面对称。众所周知，其中液晶分子在施加的电场的方向上定向的ON状态5中的pi单元的响应速度和其中不施加电场的瞬时安全状态4远远快于响应速度的其他结构转移。因此，当其透射轴与rho孔的液晶分子轴相同或几乎相同的线性偏振光入射时，pi单元的反射率在每一个处于n1和n2之间快速转换入射角。

80. 发明专利

JPS61116329A Liquid crystal display panel 失效
标题翻译：液晶显示面板
公开(公告)号：JPS61116329A
公开(公告)日：1986-06-03
申请号：JP23736284
申请日：1984-11-09
申请人： Seiko Epson Corp
发明人： ARIGA SHUJI , SONEHARA TOMIO
IPC分类号： G02F1/133 , G02F1/136 , G02F1/1368 , G02F1/137 , G02F1/139
CPC分类号： G02F1/1395
摘要： PURPOSE: To easily obtain an image high in responsively and wide in visual angle by selectively switching the electroptic effect of a π cell with an active switching element.
CONSTITUTION: The switching element 6 is formed in a matrix on a transparent quartz glass plate 7, and it is combined with another transparent glass plate 2 to form the π cell liquid crystal panel. The panel is filled with liquid crystals so as to orient them as shown with the arrows 9 in the figure. Polarizing plates 1, 8 are applied to the outside of both glass plates 2, 7 so as to arrange their absorption axes 10 at a 45° to the orientation direction of the liquid crystals.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：通过选择性地切换具有有源开关元件的pi单元的电刺激效果，以便容易地获得响应性和视觉宽度高的图像。构成：开关元件6在透明石英玻璃板7上以矩阵形成，并与另一透明玻璃板2组合以形成pi单元液晶面板。面板充满液晶，以便如图所示的箭头9所示定向。将偏光板1,8施加到两个玻璃板2,7的外侧，以将其吸收轴10布置在45度。到液晶的取向方向。

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