公开(公告)号：JPH06102515A

公开(公告)日：1994-04-15

申请号：JP27357492

申请日：1992-09-18

Applicant: CANON KK

Inventor： ASAOKA MASANOBU ,  TAKAO HIDEAKI ,  KOJIMA MAKOTO ,  TOKANOU GOUJI

IPC: G02F1/1337

Abstract: PURPOSE:To stably provide a display which generates a large tilt angle theta and with which high-contrast images are displayed uniformly with a wide area without generating after-images. CONSTITUTION:This liquid crystal element is constituted by having oriented films 14a, 14b on at least one of a pair of substrates 11a, 11b provided with transparent electrodes 12, 12b and clamping a ferroelectric liquid crystal 15 between the substrates. These oriented films 14a, 14b are the composite consisting of >=2 kinds of polymer components and the polyamide expressed by formula is incorporated into one of these polymer components. (In the formula, R1, R2: 1 to 10C alkyl group or 1 to 10C fluoroalkyl group, where R1, R2 may be the same or different).

公开(公告)号：JPH05346506A

公开(公告)日：1993-12-27

申请号：JP17891792

申请日：1992-06-15

Applicant: CANON KK

Inventor： KOJIMA MAKOTO ,  TAKAO HIDEAKI ,  ASAOKA MASANOBU ,  NAKAI NORIYUKI ,  NISHIDA NAOYA ,  MURATA TATSUO ,  ISHIWATARI KAZUYA ,  HOTTA SHIGEHISA

IPC: G02B5/20 ,  G02F1/133 ,  G02F1/1335 ,  G02F1/1337

Abstract: PURPOSE:To decrease scattering of light produced in a color filter and to improve display characteristics by controlling the refractive indexes of the pigment and the binder for each color picture element which constitutes the color filter. CONSTITUTION:The pigment and the binder for each color picture element which constitutes the color filter are controlled to be

公开(公告)号：JPH05196930A

公开(公告)日：1993-08-06

申请号：JP2902892

申请日：1992-01-21

Applicant: CANON KK

Inventor： KOJIMA MAKOTO ,  TAKAO HIDEAKI ,  ASAOKA MASANOBU

IPC: G02F1/1335

Abstract: PURPOSE:To prevent a display characteristic from being degraded in the case of observing the element obliquely from the front side by balancing the intensity of transmitted light at every wavelength by matching the retardation of color filter layers in the respective colors of R, G and B and the retardation of a liquid crystal layer. CONSTITUTION:The retardation of the color filter layers in the respective colors of R, G and B is matched with the retardation of the liquid crystal layer. When the sizes of the retardation at the color filters in the respective colors of R, G and B are expressed by DELTAR, DELTAG and DELTAB, the relations of DELTAR>DELTAG>DELTAB are satisfied and when a 1/2 angle formed by average polymer directions in the two stable states of ferro-inductive liquid crystal is defined as thetaa, a delay phase axis direction 5 of DELTAR, DELTAG and DELTAB is set within the range of + or -thetaa with a layer normal direction 1 of the ferro-inductive liquid crystal as a center.

公开(公告)号：JPH05113568A

公开(公告)日：1993-05-07

申请号：JP30131091

申请日：1991-10-22

Applicant: CANON KK

Inventor： ASAOKA MASANOBU ,  TAKAO HIDEAKI ,  KOJIMA MAKOTO ,  HANIYU YUKIO

IPC: G02F1/1337

Abstract: PURPOSE:To display high contrast picture images without producing afterimages by providing an oriented film comprising a specified polyimide coating film. CONSTITUTION:This element consists of a ferroelectric liquid crystal between a pair of parallel substrates having transparent electrodes and at least one of substrates has a polyimide oriented film. This oriented film consists of a polyimide coating film having the structural unit expressed by formula I and containing

公开(公告)号：JPH0540264A

公开(公告)日：1993-02-19

申请号：JP21938491

申请日：1991-08-06

Applicant: CANON KK

Inventor： TAKAO HIDEAKI ,  ASAOKA MASANOBU ,  KOJIMA MAKOTO

IPC: G02F1/133 ,  G02F1/1337

Abstract: PURPOSE:To obtain the liquid crystal element which does not require a high- temp. treatment at the time of forming oriented films, has excellent productivity, has a high contrast in a bright state and a dark state, is extremely high in display contrast at the time of multiplexing driving in particular, provides a display of a high grade and does not generate after-images unsightly to the eyes. CONSTITUTION:This liquid crystal element is constituted by crimping a chiral smectic liquid crystal 15 between a pair of parallel substrates 11a and 11b formed with transparent electrodes 12a, 12b and having the oriented films 14a, 14b compounded with >=2 kinds of polyamides on at least one of the substrates. The polyamides consist of >=2 kinds of the polyamides expressed by formula I and at least one kind thereof have a linear molecular structure in the part A. In the formula, R1, R2 denote CF3(CF2)L(CH2)m, where L>=0, (m)>=0; A denotes a bivalent org. residue and (n) >=2 integer.

公开(公告)号：JPH02116828A

公开(公告)日：1990-05-01

申请号：JP26933588

申请日：1988-10-27

Applicant: CANON KK

Inventor： INABA YUTAKA ,  TAKAO HIDEAKI ,  MURATA TATSUO ,  KOJIMA MAKOTO

IPC: G02F1/1343 ,  G09F9/00 ,  G09G3/36

Abstract: PURPOSE:To simplify matrix electrode structure and to reduce cost by providing display element parts, scanning electrode and signal electrode driving circuits, and a projecting optical system which synthesizes the transmitted light rays of the respective display element parts and projects and displays the images on a screen and commonly imaging either of the scanning electrodes and the signal electrode driving circuits on the respective display element parts. CONSTITUTION:The scanning electrode groups 22 and the signal electrode groups 23 are provided to intersect with each other in the form of matrix to the respective display element parts R, G, B. The signal electrodes 23 are connected to the driving circuits 20R, 20G, 20B for the signal electrodes provided to each of the respective display element parts, while the scanning electrodes 22 are connected to the common driving circuit 17 for the scanning electrodes. The red, green and blue image are formed on the respective display element parts by successively driving the respective driving circuits 20R, 20G, 20B for the signal electrodes while the driving circuits 17 for the scanning electrode are driven. These images are synthesized and are projected and displayed on the screen 19 by the light of a light source 11 via the projecting optical system. Since either of the two electrode groups is connected to the common driving electrodes, the constituting of the driving circuits is simplified and the cost is reduced.

公开(公告)号：JPH02115803A

公开(公告)日：1990-04-27

申请号：JP27009388

申请日：1988-10-25

Applicant: CANON KK

Inventor： MURATA TATSUO ,  INABA YUTAKA ,  TAKAO HIDEAKI ,  KOJIMA MAKOTO

IPC: G02B5/20 ,  G09F9/00

Abstract: PURPOSE:To provide the color filter which can improve the display grade and color reproducibility of a color liquid crystal display and the process for producing the color filter by providing light shielding parts set to the film thickness of

公开(公告)号：JP2003086083A

公开(公告)日：2003-03-20

申请号：JP2001279031

申请日：2001-09-14

Applicant: CANON KK

Inventor： KAGAMI KAZUHIRO ,  KOJIMA MAKOTO ,  TERADA MASAHIRO

IPC: H01J9/02 ,  H01J1/316 ,  H01J31/12

Abstract: PROBLEM TO BE SOLVED: To provide an electron emission element having uniform and stable electron emission characteristics and its manufacturing method; to provide an electron source having a plurality of electron emission elements and the manufacturing method of an electron source capable of increasing the speed of a manufacturing process of the electron source; and to provide an image forming device capable of forming uniform, stable, and high quality images and its manufacturing method. SOLUTION: The manufacturing method of the electron emission element forming a conductive film 4 having an electron emission part between element electrodes 2, 3 contains a process forming the conductive film 4 between the element electrodes 2, 3 on a substrate 1; a process reducing the conductive film 4 in the region between the element electrodes 2, 3 with reducing gas under vacuum to an intermediate state of a non-reducing state and a completely reduced state; and a process forming the electron emission part by supplying current to the conductive film 4.

公开(公告)号：JP2991258B2

公开(公告)日：1999-12-20

申请号：JP31311591

申请日：1991-11-01

Applicant: CANON KK

Inventor： TAKAO HIDEAKI ,  KOJIMA MAKOTO ,  ASAOKA MASANOBU

IPC: G02F1/133 ,  G02B5/20 ,  G02F1/1335 ,  G02F1/141

公开(公告)号：JPH1114991A

公开(公告)日：1999-01-22

申请号：JP16468697

申请日：1997-06-20

Applicant: CANON KK

Inventor： GOFUKU IHACHIROU ,  KOJIMA MAKOTO ,  KISHI ETSURO ,  KANEKO SHUZO ,  NAKAMURA KATSUTOSHI

IPC: G02F1/137 ,  G02F1/1333 ,  G02F1/1337 ,  G02F1/141

Abstract: PROBLEM TO BE SOLVED: To prevent the influence of antielectric field effect and crosstalk between pixels. SOLUTION: On one substrate 2, an orientation control film 10 is fold which has uniaxial orientation characteristics to limpid crystal molecules and on the other substrate 3, a film 7 is formed which has nonuniaxial orientation characteristics to the liquid crystal molecules. This film 7 has a polycrystalline structure which has nearly no crystal grain boundary in its film thickness direction and crystal grain boundaries in its film surface direction. Consequently, the film 7 has low volume resistivity along the film thickness and high volume resistivity along the film surface. Those volume resistivity values are set within a specific range to prevent the influence of antielectric field effect and crosstalk between pixels.