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71. 发明专利

JPS62273285A LIQUID CRYSTAL COMPOSITION 失效
公开(公告)号：JPS62273285A
公开(公告)日：1987-11-27
申请号：JP11640986
申请日：1986-05-20
申请人： FUJITSU LTD
发明人： MOCHIZUKI AKIHIRO , ONDA FUMIYO , YOSHIHARA TOSHIAKI , IWASAKI MASAYUKI , YAMAGISHI YASUO
IPC分类号： C09K19/30 , C09K19/42 , C09K19/46 , G02F1/13
摘要： PURPOSE:To provide the titled composition capable of talking a plural of mutually different optical states in high stability under specified electric field intensity, stable even at elevated temperatures, for use in the manufacture of projection type liquid crystal display, containing liquid crystal(s) of specific structure in specified amount(s). CONSTITUTION:The objective composition containing at least one kind of liquid crystal selected from those of respective structures of formula R1-A-B-C-R2 and formula R1-A-B-C-D-R2 (R1 and R2 are each 1-7C straight chain alkyl or straight chain alkoxy; A, B, C, and D are each cyclohexane ring, benzene ring or pyrimidine ring, bonds between each of them being ester bond, thane bond or direct bond) in such content(s) as to total 15-45wt%. For example, such compound(s) as to be of formula I and/or formula II may be used.

72. 发明专利

JPS61209290A STORAGE-TYPE LIQUID CRYSTAL COMPOSITION 失效
公开(公告)号：JPS61209290A
公开(公告)日：1986-09-17
申请号：JP4938485
申请日：1985-03-14
申请人： FUJITSU LTD
发明人： MOCHIZUKI AKIHIRO , IWASAKI MASAYUKI , WATANUKI TSUNEO , SAITO KAZUMASA , IKEGAMI YOSHIZUMI
IPC分类号： G02F1/13 , C09K19/58 , G09F9/00 , G09F9/35
摘要： PURPOSE:To provide a storage-type liquid crystal composition containing a specific electron-donative amorphous aromatic organic compound as a dopant and capable of keeping and displaying focal conic state and homeotropic state under the application of the same electric potential. CONSTITUTION:The objective storage-type liquid crystal composition exhibiting cholesteric-nematic phase transition contains an electron-donative amorphous aromatic organic compound having excellent planar structure {e.g. bis[bis(1,2- diphenylphosphine)ethane]palladium, 2,2'-bis(4,5-dimethylimidazole), 2,2'-bithio phene, etc.} as a dopant. The amount of the dopant compound is preferably about 0.2-3.0wt%. EFFECT:The composition gives a liquid crystal display exhibiting high electro- optical hysteresis effect, displaying a large quantity of data in high contrast ratio, writable by type-in technique and drivable stably.

73. 发明专利

JPS61209289A STORAGE-TYPE LIQUID CRYSTAL COMPOSITION 失效
公开(公告)号：JPS61209289A
公开(公告)日：1986-09-17
申请号：JP4938385
申请日：1985-03-14
申请人： FUJITSU LTD
发明人： MOCHIZUKI AKIHIRO , IWASAKI MASAYUKI , WATANUKI TSUNEO , SAITO KAZUMASA , IKEGAMI YOSHIZUMI
IPC分类号： G02F1/13 , C09K19/12 , G09F9/00
摘要： PURPOSE:To provide a storage-type liquid crystal composition composed of a specific nematic liquid crystal and a specific cholesteric liquid crystal and exhibiting focal conic state and homeotropic state under the application of the same electric potential. CONSTITUTION:The objective storage-type liquid crystal composition having positive dielectric anisotropy and exhibiting cholesteric-nematic phase transition is composed of a mixture of (A) a nematic liquid crystal having a K33/K22 ratio of

74. 发明专利

JPS61174516A LIQUID-CRYSTAL DISPLAY ELEMENT 失效
公开(公告)号：JPS61174516A
公开(公告)日：1986-08-06
申请号：JP1457185
申请日：1985-01-30
申请人： FUJITSU LTD
发明人： IWASAKI MASAYUKI , SAITO KAZUMASA , MOCHIZUKI AKIHIRO , WATANUKI TSUNEO , IKEGAMI YOSHIZUMI
IPC分类号： G02F1/133 , G02F1/137 , G02F1/139 , G09F9/00
摘要： PURPOSE:To obtain a liquid-crystal display device which is safe and can make display in large capacity by using a liquid-crystal compsn. which is a mixture composed of a chiral nematic type liquid-crystal and nematic type liquid-crystal, has a specific spiral pitch or below and has the liquid-crystal thickness between electrodes within a specific range. CONSTITUTION:The cholesteric-nematic phase transition and storage type liquid- crystal mixture 5 which is formed by mixing a chiral nematic type liquid-crystal and nematic type liquid-crystal and of which the dielectric anisotropy is positive is sealed between the transparent electrodes 1 and 2 in such a manner that the thickness is within a 10-20 micrometer range and that the spiral pitch is

75. 发明专利

JPS61148290A LIQUID CRYSTAL COMPOSITION 失效
公开(公告)号：JPS61148290A
公开(公告)日：1986-07-05
申请号：JP26921684
申请日：1984-12-20
申请人： FUJITSU LTD
发明人： MOCHIZUKI AKIHIRO , IWASAKI MASAYUKI , WATANUKI TSUNEO , SAITO KAZUMASA , IKEGAMI YOSHIZUMI
IPC分类号： G02F1/13 , C09K19/42 , C09K19/46 , C09K19/50 , G09F9/35
摘要： PURPOSE:To produce a liquid crystal composition having wide view angle and positive dielectric anisotropy, and capable of giving display having continuous gradation, by using a (thio)ester-type liquid crystal, an azoxy-type liquid crystal and a cyclohexane-type nematic liquid crystal as essential components. CONSTITUTION:The objective liquid crystal composition contains (A) 10-15(wt)% cholesteric liquid crystal or optically active nematic liquid crystal, (B) preferably 10-30% thioester-type and/or ester-type liquid crystal, (C) preferably 154n40% azoxy-type liquid crystal, and (D) preferably 10-30% cyclohexane- type nematic liquid crystal having low viscosity, as essential constituent components.

76. 发明专利

JPH0395522A LIQUID CRYSTAL DISPLAY ELEMENT 失效
公开(公告)号：JPH0395522A
公开(公告)日：1991-04-19
申请号：JP23244989
申请日：1989-09-07
申请人： FUJITSU LTD
发明人： MOCHIZUKI AKIHIRO , IWASAKI MASAYUKI , HIROSE MITSUAKI , KOBAYASHI SHUNSUKE
IPC分类号： C09K19/58 , G02F1/1337
摘要： PURPOSE:To decrease the crosstalks specific to an STN panel and to make distinct display in large-capacity display of a small duty ratio by adding specific charge transfer materials into an oriented film. CONSTITUTION:The charge transfer materials expressed by formulas I, II are added into the oriented film of the liquid crystal display device formed by using the supertwisted nematic (STN) liquid crystal. In the formulas, R1, R2, R3, R4 respectively denote 1 to 4C alkyl group, alkyl amine or hydrogen; R is 1 to 4C alkyl group or alkyl amine. The shift quantity of the voltage value to apply an intermediate luminance is definitely decreased by the addition of such charge transfer materials to the oriented film. The voltage applied from the outside is thus impressed nearly as it is to the liquid crystal part which makes electro-optical response, by which the crosstalks specific to the STN dependent upon writing patterns are decreased.

77. 发明专利

JPH02187491A LIQUID CRYSTAL DISPLAY DEVICE 失效
公开(公告)号：JPH02187491A
公开(公告)日：1990-07-23
申请号：JP811989
申请日：1989-01-17
申请人： FUJITSU LTD
发明人： MOCHIZUKI AKIHIRO , IWASAKI MASAYUKI
IPC分类号： G02F1/13 , C09K19/12 , C09K19/20 , C09K19/44 , C09K19/46 , G02F1/133 , G02F1/137 , G02F1/139
摘要： PURPOSE:To obtain the subject liquid crystal display device capable of showing a liquid crystal display by a high duty drive without crosstalk by adding a cholesteric phase liquid crystal containing a specified double chiral nematic liquid crystal to a nematic mixed liquid crystal. CONSTITUTION:An objective liquid crystal display device containing one or more double chiral nematic liquid crystals represented by formulae I-III [m is 2-12; n is 2-12; R1 and R2 are -CH3 and -OC2H5; *(1) and *(2) are chiral center of S form or R form] as a cholesteric phase liquid crystal capable of giving a helical structure to a nematic mixed liquid crystal by addition thereto.

78. 发明专利

JPH02137816A LIQUID CRYSTAL DISPLAY ELEMENT 失效
公开(公告)号：JPH02137816A
公开(公告)日：1990-05-28
申请号：JP29260788
申请日：1988-11-18
申请人： FUJITSU LTD
发明人： IWASAKI MASAYUKI , YOSHIHARA TOSHIAKI
IPC分类号： G02F1/133 , G02F1/137 , G02F1/139
摘要： PURPOSE:To make display of red disk colors so that the multicolor display is attained by specifying the product of the refractive index anisotropy and panel thickness of a nematic liquid crystal to a specific range. CONSTITUTION:Liquid crystal materials of a phase transfer type which are different in the product DELTAn.d of the refractive index anisotropy DELTAn and the panel thickness d are prepd. The hues in the display colors when a driving voltage is impressed are a linear relation when the relation is plotted by taking the DELTAn.d at the abscissa and the hue H deg. at the ordinate. The DELTAn.d of the range where the hue H deg. shows the red system colors (5R to 2.5RP hues in the Munsell system) shows an 800 to 950nm range. The product DELTAn.d of the refractive index anisotropy DELTAn and panel thickness d of the nematic liquid crystal is merely necessitated to be specified in the 800 to 950nm range in this way if the red system colors are desired to be obtd. as the colors to be projected and displayed. Since the display of the red system colors having a complementary color relation with a green is executed, the display of a black is possible as well. The multicolor display is thus obtd.

79. 发明专利

JPH0240615A LIGHT DIFFRACTING ELEMENT 失效
公开(公告)号：JPH0240615A
公开(公告)日：1990-02-09
申请号：JP19057388
申请日：1988-08-01
申请人： FUJITSU LTD
发明人： YAMAGISHI YASUO , IWASAKI MASAYUKI , YOSHIHARA TOSHIAKI
IPC分类号： G02F1/1335
摘要： PURPOSE:To obtain the active diffraction grating which can be controlled electrically by making at least one surface of a transparent plate irregular in parallel stripes. CONSTITUTION:On a substrate 1, a transparent electrode 2 is provided and driven by a voltage source 4, but the surface of one of two substrates 1 or the transparent electrode 2 on the substrate 1 is made irregular in periodical stripes to generate a slight difference in panel thickness. An electric field E(x) applied to liquid crystal when a voltage V is applied between the electrodes of the panel because of the slight difference in panel thickness is represented as E(x)=V/d(x). Here, d(x) is the distance between the transparent electrodes and even if the same voltage V is applied according to the irregularity of the panel, the electric field E(x) applied to the liquid crystal is different. When a sufficiently high voltage is applied, the entire surface of the liquid crystal enters a nematic phase, but when the voltage drops, liquid crystal molecules go to parallel to the substrate selectively where the electric field is weak in recessed parts and spiral axes are arrayed in a specific direction to enable diffracted light to be converged on a specific position, so that the diffracted light and transmitted light can be switched with the voltage.

80. 发明专利

JPH01306817A LIQUID CRYSTAL DISPLAY ELEMENT 失效
公开(公告)号：JPH01306817A
公开(公告)日：1989-12-11
申请号：JP13794388
申请日：1988-06-03
申请人： FUJITSU LTD
发明人： MOCHIZUKI AKIHIRO , YOSHIHARA TOSHIAKI , IWASAKI MASAYUKI , YAMAGISHI YASUO
IPC分类号： G02F1/1337 , G02F1/133
摘要： PURPOSE:To reduce cost and to save electric power consumption by using the dielectric layer formed on a glass substrate by mounting the glass substrate to a vapor deposition device at the specified angle between the perpendicular line of the vapor deposition source and the glass substrate and executing diagonal vapor deposition of a dielectric material as a liquid crystal oriented film. CONSTITUTION:The dielectric layer of SiO, MgF2, MgO, etc., formed on the glass substrate 1 by mounting the glass substrate 1 on the vapor deposition device 5 in such a manner that the angle between the perpendicular line of the vapor deposition source 4 and the glass substrate 1 attains 5-30 deg. and execut ing the diagonal vapor deposition of the dielectric material. The restoration time of liquid crystal molecules when the voltage between transparent electrodes is removed, therefore, increases and the ratio between the rise time and the fall time with the liquid crystal display element of a PAC system is enlarged. The characteristics equal to the characteristics of a CRT are obtd. in this way and the reduction of the cost and the saving of the electric power consump tion are attained.

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