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81. 发明专利

JPH107617A POLYMERIZABLE COMPOUND AND LIQUID CRYSTAL DISPLAYING ELEMENT USING THE SAME 失效
公开(公告)号：JPH107617A
公开(公告)日：1998-01-13
申请号：JP3416597
申请日：1997-02-18
申请人： SHARP KK , KANTO KAGAKU
发明人： ONISHI NORIAKI , YAMADA NOBUAKI , YOSHIDA MASAHIKO , MIZOBE HANYOU , SUZUKI KENJI
IPC分类号： G02F1/1333 , C07C43/174 , C07C43/225 , C07C43/23 , C07C47/457 , C07C49/697 , C07C69/54 , C07C69/675 , C07C69/734 , C09K19/38 , G02F1/13 , G02F1/1337
摘要： PROBLEM TO BE SOLVED: To obtain a new polymerizable compound capable of giving a liquid crystal displaying element less in generation of a disclination line, and reduction of a response rate and voltage-transmittance characteristic, bright at the time of not impressing an electric voltage, having a high contrast, and excellent in impact resistance, compression resistance and heat resistance. SOLUTION: This polymerizable compound is a compound of formula I [X is H or CH3 ; Y is a single bond, COO, OCO or O; RA, RB are each phenylene (RX) or cyclohexylene (RY), and RB is RX when RA is RX; (n), (p) are each 0-18; (q), (s) are each 0, 1; (p)>=2, when (q) is 1], e.g. 2,3-difluoro-4'-[12,12-bis(acryloyloxymethyl)dodecyl]oxybiphenyl. The compound of the formula I is obtained by reacting a compound of formula II with (meth)acrylic acid chloride, when Y is a single bond, RA is RX and (s)=0.

82. 发明专利

JPH09258186A LIQUID CRYSTAL DISPLAY DEVICE 失效
公开(公告)号：JPH09258186A
公开(公告)日：1997-10-03
申请号：JP6883596
申请日：1996-03-25
申请人： SHARP KK
发明人： YAMADA NOBUAKI , KANZAKI SHUICHI
IPC分类号： G02F1/1333 , G02F1/1334 , G02F1/1343 , G02F1/136
摘要： PROBLEM TO BE SOLVED: To provide a wide visual field angle type liquid crystal display device having axisymmetrically oriented liquid crystal regions having excellent display quality. SOLUTION: This liquid crystal display device have a pair of substrates at least one of which are transparent, a liquid crystal layer which is held between a pair of these substrates and sealing regions 34 which enclose this liquid crystal layer by adhering a pair of the substraets to each other. This liquid crystal has the liquid crystal regions formed regulars so as to correspond to each of plural picture element regions 37 and the polymer regions which substantially enclose the liquid crystal regions. The liquid crystal molecules in the liquid crystal regions are axisymmetrically oriented. In such a case, the liquid crystal layer has further plural pseudo picture element regions 47 in the regions between the display regions 32 having the plural picture element regions 37 and the sealing regions 34, and has the liquid crystal regions regularly formed so as to correspond to each of the plural pseudo picture element regions 47 and the polymer regions substantially enclosing these liquid regions.

83. 发明专利

JPH09258181A ACTIVE MATRIX TYPE LIQUID CRYSTAL DISPLAY DEVICE AND ITS PRODUCTION 失效
公开(公告)号：JPH09258181A
公开(公告)日：1997-10-03
申请号：JP6502996
申请日：1996-03-21
申请人： SHARP KK
发明人： YAMADA NOBUAKI , MORITA TATSUO
IPC分类号： G02F1/1333 , G02F1/1334 , G02F1/1339 , G02F1/1343 , G02F1/1362
摘要： PROBLEM TO BE SOLVED: To improve the display characteristics and reliability by arranging spacers in regions exclusive of a region where plural picture element electrodes and control elements are formed. SOLUTION: The liquid crystal display device 300 has an active matrix substrate 301, a counter substrate 302 and a liquid crystal layer 306 held between these substrates. Electrodes for impressing voltage on the liquid crystal layer 306 are formed on the liquid crystal layer 306 side of the respective substrates 301 and 302. In such a case, resist walls 308 including bead-like spacers 307 are formed in the regions exclusive of the picture element regions 309. Since these resist walls 308 do not exist in the picture element regions 309, the surface tension of the respective regions varies. Consequently, liquid crystal regions 306 are formed in the regions where the resist walls 308 do not exist and polymer regions 306b are so formed as to enclose the liquid crystal regions 306. The polymer regions 306b formed by photopolymn. are so formed as to cover the spacers 307 and the resist walls 308.

84. 发明专利

JPH09227453A POLYMERIZABLE COMPOUND AND LIQUID CRYSTAL DISPLAY ELEMENT CONTAINING THE COMPOUND 失效
公开(公告)号：JPH09227453A
公开(公告)日：1997-09-02
申请号：JP3696796
申请日：1996-02-23
申请人： SHARP KK , KANTO KAGAKU
发明人： ONISHI NORIAKI , YAMADA NOBUAKI , YOSHIDA MASAHIKO , MIZOBE HANYOU , SUZUKI KENJI
IPC分类号： G02F1/13 , C07C33/50 , C07C35/21 , C07C35/50 , C07C69/54 , C07C69/653 , C09K19/30 , C09K19/38
摘要： PROBLEM TO BE SOLVED: To obtain a polymerizable compound containing cyclohexyl ring as a liquid crystal-like skeleton, free from generation of discrination line, resistant to the deterioration of response speed and voltage-transmission characteristics and useful for a liquid crystal display element. SOLUTION: This polymerizable compound is expressed by formula I (X is H or methyl; Y and Z are each independently H or F; (1) is an integer of 0-14; (m) and (n) are each independently O or 1; R is cyclohexane ring, cyclohexene ring or benzene ring; (1) >=1 when (m)=(1)), e.g. the compound of formula II. A compound of formula I wherein n=0, m=1 and Y=Z=F or Y=F and Z=H can be produced by reacting a compound of formula III with a compound of formula IV. The liquid crystal display element is produced by sandwiching a liquid crystal layer composed of a polymer derived from a polymer precursor containing at least the polymerizable compound and a liquid crystal region encircled by the polymer between a pair of substrates.

85. 发明专利

JPH09160039A LIQUID CRYSTAL DISPLAY ELEMENT AND ITS PRODUCTION 失效
公开(公告)号：JPH09160039A
公开(公告)日：1997-06-20
申请号：JP31562295
申请日：1995-12-04
申请人： SHARP KK
发明人： NAGAE NOBUKAZU , YAMADA NOBUAKI
IPC分类号： G02F1/1337
摘要： PROBLEM TO BE SOLVED: To obtain excellent display quality and to reduce the dependency of display quality on a visual angle direction by allowing axially symmetric orientation domain to have specified aspect ratio. SOLUTION: This liquid crystal display element 30 is provided with a liquid crystal layer 32 consisting of a liquid crystal area 23 surrounded by high molecular area 24 between a pair of base plates 31a and 31b. The pair of base plates 31a and 31b is provided with an electrode for impressing voltage on the liquid crystal layer 32 on the liquid crystal layer 32 side thereof. The liquid crystal area 23 is the axial symmetric orientation domain and the aspect ratio of the domain is set larger than 1:1 and equal to or under 1:6. By impressing the voltage on liquid crystal molecules LC oriented to be axially symmetric, the liquid crystal molecules LC are oriented to be parallel with the direction of electric field while keeping the axial symmetricity. Thus, apparent transmissivity is averaged in all the visual angle directions (for instance, in the visual angle directions A and B), so that the dependence ability of the display quality on the visual angle direction is reduced.

86. 发明专利

JPH08292423A LIQUID CRYSTAL ELEMENT AND ITS PRODUCTION 失效
公开(公告)号：JPH08292423A
公开(公告)日：1996-11-05
申请号：JP14925695
申请日：1995-06-15
申请人： SHARP KK
发明人： HORIE WATARU , OKAMOTO MASAYUKI , YAMAHARA MOTOHIRO , SHIOMI MAKOTO , YAMADA NOBUAKI , KANZAKI SHUICHI
IPC分类号： G02F1/1333 , G02F1/1335 , G02F1/1337 , G02F1/1339 , G02F1/1343 , G02F1/136 , G02F1/1368
摘要： PURPOSE: To improve the dependency of a liquid crystal display element on visual angles and to lessen the rough feel of display. CONSTITUTION: Picture element electrodes 3 formed on a glass substrate 1 are provided with projecting parts 4 in their central parts and are provided with first walls 5 so as to enclose these picture elements. A glass substrate 2 is provided with a counter electrode 6. Liquid crystal regions are formed in correspondence to the respective picture element regions by high-polymer walls between the substrates 1 and 2. The liquid crystal molecules in the respective liquid crystal regions are radially oriented with the parts near the projecting parts 4 as an axis perpendicular to the substrate.

87. 发明专利

JPH0895054A LIQUID CRYSTAL DISPLAY ELEMENT AND MANUFACTURE THEREOF 失效
公开(公告)号：JPH0895054A
公开(公告)日：1996-04-12
申请号：JP22842094
申请日：1994-09-22
申请人： SHARP KK
发明人： YAMAHARA MOTOHIRO , YAMADA NOBUAKI , KANZAKI SHUICHI
IPC分类号： G02F1/1337
摘要： PURPOSE: To dispense with visual angle dependence so as to provide a wide angle of visibility by arranging areas having different phase separation structures each other in an oriented film made of non-compatible polymer alloy and varying orientation of liquid crystal in every area. CONSTITUTION: On an opposed face, on which a transparent electrode film 5 and an oriented film controlling thin film 6 are formed, of a glass substrate 2, a polymer alloy oriented film 7 is formed and covers the whole surface. The oriented film 7 is formed in such ways as mixing two kinds of polyimide RN 713 and RN 739 which are non-compatible with each other in n- methylpyrolidone so as to turn them into polymer alloy, applying the polymer alloy by a spin coating method, and burning it after evaporating a solvent. The oriented film 7 formed in this way has a phase separation structure on the basis of relation between surface free energy of the two kinds of polyimides constituting the polymer alloy and surface energy of its substrate phase. As a result, intensive visual angle dependence, which is observed when liquid crystal is oriented in one direction, is dispensed with, so that a wide angle of visibility can be obtained.

88. 发明专利

JPH07333620A LIQUID CRYSTAL DISPLAY ELEMENT 失效
公开(公告)号：JPH07333620A
公开(公告)日：1995-12-22
申请号：JP12761894
申请日：1994-06-09
申请人： SHARP KK
发明人： NAGAE NOBUKAZU , YAMAHARA MOTOHIRO , YAMADA NOBUAKI
IPC分类号： C09K19/02 , C09K19/38 , G02F1/1337
摘要： PURPOSE:To improve a display grade by obtaining optimum small spherulites even on a plain surface. CONSTITUTION:Phase sepn. of crystalline high polymers from each other after blending is resulted in some cases blending if straight chain crystalline high polymers and crystalline high polymers having branches are blended and are used for oriented films 8, 11 and if the crystalline high polymers to be blended are different aggregate polymers and, therefore, crystalline copolymers alternately having respective repeating units are added to these polymers in order to prevent such phase sepn, by which compatibility is enhanced. The molecular motion is suppressed by the crystalline high polymers having branches in such a manner and acts as a crystal nucleus, by which more crystal nuclei than usual are generated. The adjacent spherulites are hindered in growth with each other at the time of spherulite growth and the spherulite diameters are reduced. Then, the optimum smaller spherulites are realized even in the case of the smooth surface. The liquid crystal display element having an improved contrast ratio and high display grade free from a rough feel is thus obtd.

89. 发明专利

JPH07234407A LIQUID CRYSTAL DISPLAY DEVICE AND ITS PRODUCTION 失效
公开(公告)号：JPH07234407A
公开(公告)日：1995-09-05
申请号：JP2548694
申请日：1994-02-23
申请人： SHARP KK
发明人： NAGAE NOBUKAZU , YAMADA NOBUAKI , YAMAHARA MOTOHIRO , HIRAI TOSHIYUKI , OKAMOTO MASAYUKI
IPC分类号： G02F1/133 , G02F1/1337
摘要： PURPOSE:To obtain small dependence on visual angle, to avoid changes in contrast, coloring and inversion, and to obtain high contrast without irregular display density. CONSTITUTION:The surface roughness of a transparent electrode as the base surface for orienting films 9, 11 is controlled by vapor depositing particles on the surface or by etching the base surface so that the size of spherulite of the orienting films 9, 11 is controlled. Thus, spherulite of the optimum size which does not cause a rough surface can be easily produced in the orienting films 9, 11. Since the orienting films 9, 11 is made as spherulite, the liquid crystal layer 5 in contact with the orienting films 9, 11 has such a part that is oriented in the radial direction along the surface state of the orienting films 9, 11. Thereby, in the part where the liquid crystal layer 5 is radially oriented, the liquid crystal is oriented in optional directions, which almost prevents dependence on visual angle.

90. 发明专利

JPH07120729A LIQUID CRYSTAL DISPLAY ELEMENT AND ITS PRODUCTION 失效
公开(公告)号：JPH07120729A
公开(公告)日：1995-05-12
申请号：JP26663493
申请日：1993-10-25
申请人： SHARP KK
发明人： YAMADA NOBUAKI , KANZAKI SHUICHI , OKAMOTO MASAYUKI , HORIE WATARU
IPC分类号： G02F1/13 , G02F1/1333 , G02F1/1337
摘要： PURPOSE:To provide the liquid crystal display element capable of improving the lightness of images and exceedingly improving a display grade and to provide the process for production of the liquid crystal display element exceedingly simplified in production stages. CONSTITUTION:This liquid crystal display element 11 has the constitution arranged with plural picture elements used for display. The liquid crystal display element 11 is constituted by holding a display medium layer 33 between a pair of glass substrates 16 and 17. Picture element electrodes 24 are formed in a matrix form in the positions corresponding to the respective picture elements of the liquid crystal display element 11 on the one glass substrate 17. Projecting parts 19 which are domain control members are formed in a matrix form on the plural picture element electrodes 24. Plural band-shaped common electrodes 25 are formed on the other glass substrate 16 as an example. Plural projecting parts 18 of the shape and arranging positions similar to the shape and arranging positions of the projecting parts 19 are formed on the respective common electrodes 25.

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