公开(公告)号：AT147170T

公开(公告)日：1997-01-15

申请号：AT90106275

申请日：1990-04-02

Applicant: CANON KK

Inventor： KAWAGISHI HIDEYUKI ,  IWAMOTO HIROFUMI ,  TSUBOYAMA AKIRA ,  MIHARA TADASHI

IPC: G02F1/1335 ,  G02F1/141 ,  G02F1/137

Abstract: A liquid crystal apparatus, comprising: a liquid crystal cell comprising a pair of substrates (11a,b), and a chiral smectic liquid crystal (1) showing at least two different optically stable states formed by cooling from a uniaxial alignment phase and disposed between the substrates (11a,11b); and a polarizer (P) and an analyzer (A) disposed to sandwiched the liquid crystal cell; wherein the chiral smectic liquid crystal (1), polarizer (P) and analyzer (A) are disposed to satisfy any one of the following sets of conditions I - IV characterized by combination of X, Y and Z directions shown below: with proviso that the chiral smectic liquid crystal (1) is disposed so that the long axes of the chiral smectic liquid crystal molecules are aligned with a twist in the X direction along the direction from the polarizer (P) toward the analyzer (A) to form an average molecular long axis proving one optically stable state, and when the average molecular long axis is switched to provide another optically stable state latched in the Y direction with respect to the direction from the analyzer (A) toward the polarizer (P), the polarizer (P) is disposed to have an electric vector transmission axis which is substantially in the Z direction with respect to the average molecular long axis.

公开(公告)号：AU6067594A

公开(公告)日：1994-11-17

申请号：AU6067594

申请日：1994-04-26

Applicant: CANON KK

Inventor： KODERA YASUTO ,  HOTTA YOSHIO ,  HANYU YUKIO ,  MIHARA TADASHI ,  MORI SUNAO

IPC: G02F1/1333 ,  G02F1/1337 ,  G02F1/141 ,  G02F1/13

Abstract: A liquid crystal device is constituted by a pair of oppositely disposed substrates having opposing inner surfaces and opposing electrodes thereon, and a chiral smectic liquid crystal disposed between the opposing electrodes. The liquid crystal device has an effective optical modulation region (2) and a peripheral region (3) outside the effective optical modulation region. In the device, liquid crystal molecules in the peripheral region have a pretilt angle ( alpha 2) which is larger than a pretilt angle ( alpha 1) of liquid crystal molecules in the effective optical modulation region. As a result, a local pressure irregularity or a cell thickness change caused by a liquid crystal molecular movement along an extension of the device is effectively suppressed.

公开(公告)号：DE3889966D1

公开(公告)日：1994-07-14

申请号：DE3889966

申请日：1988-03-30

Applicant: CANON KK

Inventor： INOUE HIROSHI ,  MIHARA TADASHI ,  MIZUTOME ATSUSHI ,  TANIGUCHI OSAMU ,  ONITSUKA YOSHIHIRO

IPC: G09G3/36

Abstract: A display control unit is combined with a display device including scanning and signal electrodes and a display element sandwiched between the scanning and signal electrodes and includes a key or the like for setting drive waveforms for driving the scanning and/or signal electrodes prior to drive timings of the scanning and signal electrodes. In the display device, a ratio of a voltage applied to an intersection between a non-selected scanning line and a selected information signal line to a voltage applied to an intersection between a selected scanning line and a selected information signal line is variably changed in accordance with a temperature change detected by a sensor (19E).

公开(公告)号：JPH10148834A

公开(公告)日：1998-06-02

申请号：JP31022596

申请日：1996-11-21

Applicant: CANON KK

Inventor： MIHARA TADASHI

IPC: G02F1/1337

Abstract: PROBLEM TO BE SOLVED: To prevent the coloration of a cell by a fluctuation in the cell thickness of a liquid crystal display element formed by using chiral smectic liquid crystals. SOLUTION: Electrodes 12a are formed on a substrate 11a and an insulating film 13a having projecting parts on its substrate by coexistence of particulates 19 is formed thereon. An orientation control film having projecting parts on its surface by reflecting the projecting parts described above is further formed thereon. The films of the surface projecting parts are peeled and hole parts are formed at the orientation control film 14a by subjecting the orientation control film to a rubbing treatment. The parts where a pretilt angle turns zero are formed in these hole parts to prevent the movement of liquid crystal molecules.

公开(公告)号：JPH08304843A

公开(公告)日：1996-11-22

申请号：JP12750495

申请日：1995-04-28

Applicant: CANON KK

Inventor： YOKOYAMA YUKO ,  SAITO TETSUO ,  MIHARA TADASHI ,  MASAKI YUICHI ,  SHIMAMURA YOSHINORI ,  ISHIWATARI KAZUYA

IPC: G01R31/00 ,  G02F1/13 ,  G02F1/1343 ,  G02F1/1345

Abstract: PURPOSE: To provide an electrode structure capable of easily and surely inspecting shortage/wiring resistance and further injuring no electrode by relevant inspection in a liquid crystal element of simple matrix drive. CONSTITUTION: Inspection pads 33 whose transparent electrodes are exposed and with a wide width are formed shifting every other one electrode on both end parts of drive electrodes 31 constituted of auxiliary electrodes consisting of the transparent electrodes and metal and to which an information signal is impressed, and further, dummy wiring are formed out of a display area.

公开(公告)号：JPH08304761A

公开(公告)日：1996-11-22

申请号：JP12750395

申请日：1995-04-28

Applicant: CANON KK

Inventor： YOKOYAMA YUKO ,  SAITO TETSUO ,  MIHARA TADASHI ,  MASAKI YUICHI ,  SHIMAMURA YOSHINORI ,  ISHIWATARI KAZUYA ,  KATAKURA KAZUNORI

IPC: G02F1/1337 ,  G02F1/133 ,  G02F1/1335 ,  G02F1/1343 ,  G09F9/35 ,  G09G3/36

Abstract: PURPOSE: To widen a driving margin and to make well display even under any use conditions by supplying scanning signals to the electrodes on a flattening film and supplying information signals corresponding to every color to information electrodes formed finer than these electrodes. CONSTITUTION: Color filters 3 are formed via an undercoating layer 2 on an insulating substrate 1a and the flattening layer 4 is formed thereon. Further, scanning electrodes consisting of striped transparent electrodes 6a and auxiliary electrodes 7a are formed via a barrier layer 5 on its surface. A shorting preventive layer 8a, a rough surface forming layer 9a and an oriented film 10a are formed thereon. On the other hand, the information electrodes consisting of the transparent electrodes 6b and auxiliary electrodes 7b finer than the scanning electrodes are formed on an insulating substrate 1b. A shorting preventive layer 8b, a rough surface forming layer and an oriented film 10b are formed thereon. Both substrates 1a, 1b are disposed to face each other and chiral smectic liquid crystals 13 are held between the substrates. The scanning electrodes are supplied to the scanning electrodes and the information signals corresponding to every color of the color filters 3 are supplied to the information electrodes.

公开(公告)号：JP2531683B2

公开(公告)日：1996-09-04

申请号：JP14387387

申请日：1987-06-08

Applicant: CANON KK

Inventor： TANIGUCHI OSAMU ,  INOE JUJI ,  MIZUTOME ATSUSHI ,  ONITSUKA YOSHIHIRO ,  MIHARA TADASHI

IPC: G02F1/133 ,  G09G3/36

公开(公告)号：JP2515519B2

公开(公告)日：1996-07-10

申请号：JP26674886

申请日：1986-11-11

Applicant: CANON KK

Inventor： MIHARA TADASHI

IPC: G02F1/133 ,  G02F1/1335 ,  G02F1/137 ,  G02F1/141

公开(公告)号：JPH0854607A

公开(公告)日：1996-02-27

申请号：JP19653695

申请日：1995-08-01

Applicant: CANON KK

Inventor： TANIGUCHI OSAMU ,  INOUE YUJI ,  MIZUTOME ATSUSHI ,  MIHARA TADASHI ,  ONITSUKA YOSHIHIRO

IPC: G02F1/133 ,  G09G3/36

Abstract: PURPOSE:To provide a liquid crystal device using a chiral smectic liquid crystal element prevented from a flicker display. CONSTITUTION:A drive means outputs a first scan selection signal having a voltage signal of one side polarity on a first phase and the voltage signal of the other side polarity on a second phase to an odd numbered scan electrode, and outputs a second scan selection signal having the voltage signal of the other polarity on the first phase and the voltage signal of one side polarity on the second phase to an even numbered scan electrode, and outputs the first and the second scan selection signals to the scan electrode alternately, thus, it executes first one vertical scanning, and outputs the first scan selection signal to the even numbered scan electrode, and outputs the second scan selection signal to the odd numbered scan electrode, and outputs the first and the second scan selection signals to the scan electrode alternately, and thus, it executes second one vertical scanning.

公开(公告)号：JPH0854606A

公开(公告)日：1996-02-27

申请号：JP19653595

申请日：1995-08-01

Applicant: CANON KK

Inventor： TANIGUCHI OSAMU ,  INOUE YUJI ,  MIZUTOME ATSUSHI ,  MIHARA TADASHI ,  ONITSUKA YOSHIHIRO

IPC: G02F1/133 ,  G09G3/36

Abstract: PURPOSE:To provide a liquid crystal device using a chiral smectic liquid crystal element prevented from a flicker display. CONSTITUTION:In the liquid crystal device provided with a liquid crystal panel provided with a matrix electrode constituted of a scan electrode and a signal electrode and chiral smectic liquid crystal and a drive means outputting a scan selection signal and a scan non-selection signal to the scan electrode and outputting an information signal to the signal electrode synchronizing with the output of the scan selection signal, the drive means is provided with a means outputting the first scan selection signal at every scan electrode block constituted of two or more of adjacent scan electrodes and executing first one vertical scanning and the means outputting a second scan selection signal formed by a waveform different from the waveform of the first scan selection signal at every scan electrode block and executing second one vertical scanning.