公开(公告)号：JPH05181133A

公开(公告)日：1993-07-23

申请号：JP35978991

申请日：1991-12-27

Applicant: SONY CORP

Inventor： NITO KEIICHI ,  YASUDA AKIO ,  MATSUI ERIKO ,  TAKANASHI HIDEHIKO ,  MIYASHITA MAYUMI ,  KATAOKA NOBUE

IPC: G02F1/1335 ,  G02F1/13357

Abstract: PURPOSE:To make it hard that a liquid crystal panel receives mechanical and thermal impulse when the liquid crystal panel is attached to a backlight panel or a display chassis and to eliminate the mottle of light intensity caused by attaching the liquid crystal panel to the backlight panel. CONSTITUTION:When a liquid crystal panel 1 is attached to a backlight panel 2 and/or a display chassis 9, cushioning materials 10a and 10b are respectively provided between the panel 1 and the backlight panel 2 and between the panel 1 and the display chassis 9. In the case of attaching the panel 1 to the backlight panel 2, a light reflection layer 11 is provided on the attached part, that is, the part where the cushioning material 10b is attached to the backlight panel 2.

公开(公告)号：JPH05173154A

公开(公告)日：1993-07-13

申请号：JP35628391

申请日：1991-12-24

Applicant: SONY CORP

Inventor： MATSUI ERIKO ,  YASUDA AKIO ,  NITO KEIICHI ,  TAKANASHI HIDEHIKO ,  MIYASHITA MAYUMI ,  KATAOKA NOBUE

IPC: G02F1/1343

Abstract: PURPOSE:To prevent the liquid crystal display element from shortcircuiting or decreasing in contrast owing to large surface roughness of a transparent electrode by specifying the maximum surface roughness of the transparent electrode formed on a liquid crystal display panel substrate. CONSTITUTION:On two glass substrates whose surfaces are polished, ITO films are formed as transparent electrodes by a sputtering method and orienting films are further formed by an SiO oblique vapor--depositing method to form two panel substrates for a test cell. In this case, the substrates can be prevented from short-circuiting without forming any insulating layer on the transparent electrode by setting the maximum surface roughness of the transparent electrode to

公开(公告)号：JPH05173141A

公开(公告)日：1993-07-13

申请号：JP35510591

申请日：1991-12-19

Applicant: SONY CORP

Inventor： TAKANASHI HIDEHIKO ,  YASUDA AKIO ,  NITO KEIICHI ,  MATSUI ERIKO ,  KATAOKA NOBUE ,  MIYASHITA MAYUMI

IPC: G02F1/1337

Abstract: PURPOSE:To form an obliquely vapor-deposited film on a glass substrate to uniform thickness by arranging the glass substrate at a specific position when the liquid crystal orienting film is vapor-deposited obliquely on the glass substrate. CONSTITUTION:The glass substrate 6 is arranged above a vapor-deposition source 1 and the liquid crystal orienting film is vapor-deposited obliquely on this substrate 6. The substrate 6 is arranged at the position which satisfies an expression. Here, theta is a solid angle centering the vapor-deposition source 1 and L is the distance between the vapor-deposition source 1 and substrate 6. Those distance L and solid angle theta are properly determined according to the kind of the vapor-deposition source 1 and vapor-deposition conditions such as a vapor-deposition angle which are required to form the orienting film, but the distance L is normally 20-60cm and the solid angle theta is preferably

公开(公告)号：JPH05165001A

公开(公告)日：1993-06-29

申请号：JP35366891

申请日：1991-12-17

Applicant: SONY CORP

Inventor： TAKANASHI HIDEHIKO ,  ENOMOTO MASAHISA ,  YASUDA AKIO ,  NITO KEIICHI ,  MATSUI ERIKO ,  KATAOKA NOBUE ,  MIYASHITA MAYUMI

IPC: G02F1/13 ,  G02F1/1339

Abstract: PURPOSE:To enable the uniform application of constant pressure all the time irrespective of temperature change when a glass substrate is subjected to heat and pressure in assembling of a liquid crystal panel by a simple method. CONSTITUTION:In a forming method for a liquid crystal panel such that an adhesive 5 is applied onto at least one periphery on two glass substrates 1a and 1b, and subsequently the glass substrates 1a and 1b are heated and pressurized via a spacer 4 so as to produce a liquid crystal panel, the glass substrates 1a and 1b are pressurized by applying a constant pressure irrespective of a temperature change by means of a gravitational pressurizing method when heated and pressurized so as to produce a liquid crystal panel. As such a pressurizing method by means of weight, a weight 7 is placed on the glass substrates 1a and 1b so that the positional fluctuation of the weight 7 in its vertical direction is not preferably suppressed.

公开(公告)号：JPH1082989A

公开(公告)日：1998-03-31

申请号：JP25786596

申请日：1996-09-06

Applicant: SONY CORP

Inventor： MATSUI ERIKO ,  KATAOKA NOBUE ,  IWAMURA TAKASHI ,  TAKANASHI HIDEHIKO ,  YASUDA AKIO

IPC: G02F1/137 ,  G02F1/1337 ,  G02F1/141

Abstract: PROBLEM TO BE SOLVED: To improve the image quality and to realize a smoothly animation image display by forming a liquid crystal orienting film with low polarization which has a property to relax polarization on the interface with a liquid crystal. SOLUTION: The liquid crystal oriented film is composed of an orienting film which has a property to relax polarization on the interface with a liquid crystal, especially an orienting film having high conductivity. In this case, it is preferable that the liquid crystal orienting film consists of a SiOX oblique vapor deposition film (wherein x is positive number

公开(公告)号：JPH1062753A

公开(公告)日：1998-03-06

申请号：JP23471696

申请日：1996-08-16

Applicant: SONY CORP

Inventor： MATSUI ERIKO ,  KATAOKA NOBUE ,  ENDO HIROAKI ,  MURAYAMA YUTAKA ,  YASUDA AKIO

IPC: G02F1/137 ,  G02F1/133 ,  G02F1/141 ,  G09G3/36

Abstract: PROBLEM TO BE SOLVED: To shorten memory time and to eliminate hysteresis by making a frame rate by selection electrodes faster than the intrinsic value in such a manner that the driving of the next line is started before the memory characteristic of liquid crystals falls to a prescribed value. SOLUTION: Data pulses are impressed on the liquid crystal display element by changing the time when the memorization in the intrinsic driving waveforms (A) of an NTSC system is executed under crossed nicols, i.e., the frame rate (corresponding to one field component as an interlace system in this case) from, for example, 16.7msec to 8.4msec (B) and 4.2msec (C) respectively. The hysteresis is affected by the frame rate time. The hysteresis is decreased if the frame rate time is made shorter than the intrinsic value and is set particularly at

公开(公告)号：JPH0736013A

公开(公告)日：1995-02-07

申请号：JP20175293

申请日：1993-07-22

Applicant: SONY CORP

Inventor： KATAOKA NOBUE ,  NITO KEIICHI ,  YASUDA AKIO ,  MATSUI ERIKO ,  TAKANASHI HIDEHIKO ,  HIDE FUMITOMO ,  YOU EIHO

IPC: G02F1/13 ,  G02F1/1341

Abstract: PURPOSE:To provide a liquid crystal phase control element for wobbling which exhibits a good memory characteristic and contrast and has drastically improved responsiveness by making it possible to surely and easily produce the element and to sufficiently preventing the intrusion of ions in particularly the stage when the intrusion of the ions is liable to arise in the process for production of the liquid crystal element by first and second disposition. CONSTITUTION:This process for production of the phase control element 3 for wobbling has a stage for forming optically transparent electrodes 13, 14 on optically transparent substrates 20, 21, a stage for forming oriented films on these electrodes, a stage for conducting the first disposition to prevent the intrusion of the ions before formation of the oriented films, a stage for disposing the plural substrates 20, 21 to face each other on the oriented film side after the formation of the oriented films and adhering the substrates to each other apart a specified spacing placed therebetween, a stage for injecting the liquid crystals 15 into this spacing, a stage for conducting the second disposition to prevent the intrusion of the ions prior to injection of the liquid crystal 15 and a stage for sealing at least a liquid crystal injection port after injection of the liquid crystal 15.

公开(公告)号：JPH0720502A

公开(公告)日：1995-01-24

申请号：JP18736593

申请日：1993-06-30

Applicant: SONY CORP

Inventor： YASUDA AKIO ,  MATSUI ERIKO ,  NITO KEIICHI ,  KATAOKA NOBUE ,  TAKANASHI HIDEHIKO ,  HIDE SHICHIYOU ,  YOU EIHO

IPC: G02F1/137

Abstract: PURPOSE:To obtain fast responsibility, to decrease the pulse width to develop memory property, to obtain good orientation of liquid crystal molecules, and to improve contrast by preliminarily eliminating helices of the ferroelectric liquid crystal for a liquid crystal element and then supplying the liquid crystal material. CONSTITUTION:A liquid crystal compsn, in which helices in a chiralsmectic phase is preliminarily loosened before supplying is used as a ferroelectric liquid crystal or its compsn. 20 to be supplied to the space between transparent electrodes 3a-3b (oriented films 4a-4b). The distance between electrodes 3a-3b is

公开(公告)号：JPH0720417A

公开(公告)日：1995-01-24

申请号：JP18736693

申请日：1993-06-30

Applicant: SONY CORP

Inventor： MATSUI ERIKO ,  TAKANASHI HIDEHIKO ,  HIDE SHICHIYOU ,  KATAOKA NOBUE ,  YOU EIHO ,  NITO KEIICHI ,  YASUDA AKIO

IPC: C09K19/00 ,  G02F1/13 ,  G02F1/1335

Abstract: PURPOSE:To enable use under a wide range of temp. conditions for wobbling elements in particular by constituting a liquid crystal material of ferroelectric liquid crystals or antiferroelectric liquid crystals exhibiting specific phases in specific temp. ranges. CONSTITUTION:This liquid crystal material consists of the liquid crystal selected from a group consisting of the ferroelectric liquid crystal (FCL) exhibiting the chiral smectic C phase in the -40 to 80 deg.C (more particularly -30 to 70 deg.C) range, the antiferroelectric liquid crystal (AFLC) exhibiting the chiral smectic CA phase in the -40 to 80 deg.C (more particularly -30 to 70 deg.C) range and the ferroelectric liquid crystal (more particularly smectic A) exhibiting the smectic A phase in the -40 to 80 deg.C (more particularly -30 to 70 deg.C) range and having a high electric ramp effect. The optical modulation element is constituted by arranging plural pieces of transparent base bodies provided with optically transparent electrodes and oriented films in this order in such a manner that these base bodies face each other apart prescribed spacings on the sides of the electrodes and the oriented films and injecting the liquid crystal material into these spacings at the time of using the liquid crystal described above as the optical modulation material for the wobbling elements.

公开(公告)号：JPH077705A

公开(公告)日：1995-01-10

申请号：JP17231793

申请日：1993-06-18

Applicant: SONY CORP

Inventor： MATSUI ERIKO ,  TAKANASHI HIDEHIKO ,  HIDE FUMIASA ,  KATAOKA NOBUE ,  YOU EIHO ,  NITO KEIICHI ,  YASUDA AKIO

IPC: H04N5/335 ,  H04N5/349 ,  H04N5/357 ,  H04N5/372 ,  H04N5/374 ,  H04N5/378 ,  H04N5/66

Abstract: PURPOSE:To obtain high contrast even for the use for a long time by applying a pulse with a specific width and voltage opposite in the polarity to a write pulse to the device just before the write pulse so as to execute electric field orientation processing thereby forming a uniform domain in each picture element of an electro-optic element. CONSTITUTION:An electric field orientation processing pulse EP of the opposite polarity to that of a write pulse WP is applied to a device having an electro- optic element in which a liquid crystal display is injected between opposite electrodes just before the application of the write pulse WP at a head of each field. The pulse width Pwb of the pulse EP and an absolute value Vb of an applied voltage are selected to satisfy the relation of Pwb>=Pwa and/or PwbXVb>PwaXVa, where Pwa is the pulse width of the write pulse WP and Va is an absolute value of the applied voltage. Thus, the write pulse is applied by a short pulse width or a low voltage and high contrast and high resolution are obtained at a low voltage.