公开(公告)号：JP2000149770A

公开(公告)日：2000-05-30

申请号：JP31724498

申请日：1998-11-09

Applicant: CANON KK

Inventor： KOJIMA MAKOTO ,  MITSUMICHI KAZUHIRO ,  MISHIMA SEIJI

IPC: H01J9/02

Abstract: PROBLEM TO BE SOLVED: To increase repeatability or uniformity of an electron emission characteristic, by applying a droplet by temperature control of a head of an ink jet device, and by forming a conductive film. SOLUTION: This surface conduction type electron emission element is formed by facing element electrodes 2, 3 to each other on a board 1. A film is formed from element electrode material by a vacuum deposition method, a sputtering method or the like, and the element electrodes 2, 3 are formed by a method for patterning by lift-off, etching or the like, or by a method for printing and baking a paste including the element electrode material. Thereafter, a droplet 9 including material for forming a conductive film 4 is applied on the board 1 where the element electrodes 2, 3 are formed by using a head 8 of a droplet application device. A mechanism for keeping a temperature constant is provided on the head 8 part of the droplet application device, and as for the temperature width to be controlled, the head 8 temperature is preferably controlled within a temperature width of ±0.2 deg.C, and hereby excellent uniformity can be obtained. And the conductive film 4 is formed by executing a drying or heating treatment or the like, if necessary.

公开(公告)号：JPH11142852A

公开(公告)日：1999-05-28

申请号：JP30474997

申请日：1997-11-06

Applicant: CANON KK

Inventor： KODERA YASUHITO ,  MUNAKATA HIROHIDE ,  KOJIMA MAKOTO ,  KOBAYASHI FUMIKAZU

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

Abstract: PROBLEM TO BE SOLVED: To prevent the nonuniformity of the alignment state of chiral smectic liquid crystals. SOLUTION: A uniaxial alignment layer 7 is subjected to a rubbing treatment in a production process, by which a uniaxial alignment characteristic is imparted to liquid crystal molecules. A material of which the change in the dispersion term of the surface energy by the occurrence of film peeling attains

公开(公告)号：JPH10197883A

公开(公告)日：1998-07-31

申请号：JP35656896

申请日：1996-12-27

Applicant: CANON KK

Inventor： NAKAMURA KATSUTOSHI ,  OKADA SHINJIRO ,  KOJIMA MAKOTO ,  SUNAGA MAKI ,  MIZUTANI HIDEMASA

IPC: G02F1/1341 ,  B29C39/24 ,  B29C39/38 ,  B29K27/12 ,  B29L11/00

Abstract: PROBLEM TO BE SOLVED: To provide a process for producing a liquid crystal element capable of preventing the deterioration of a liquid crystal material by the denaturization, etc., thereof, making a cell gap uniform within the plane and rapidly injecting smectic liquid crystals. SOLUTION: A cell 1 having a first aperture 12 and a second aperture 13 is formed by arranging a pair of substrates 11a, 11b opposite to each other. The first aperture 12 and the second aperture 13 are provided with a pressure difference. The liquid crystals having a smectic phase previously heated to a liquid phase are injected into the cell 1 for the prescribed time from the first aperture 12. The liquid crystals are packed into the cell while the liquid crystals past the inside of the cell 1 are discharged from the second aperture 13. The liquid crystals in the part of the second aperture 13 are cooled to the smectic phase before the difference pressure between the first aperture 12 and the second aperture 13 is released. As a result, the generation of the uninjected regions of the liquid crystals which arises heretofore by accompanying with the release of the differential pressure described above is averted.

公开(公告)号：JPH08146401A

公开(公告)日：1996-06-07

申请号：JP29133794

申请日：1994-11-25

Applicant: CANON KK

Inventor： KOJIMA MAKOTO ,  ITO YASUHIRO

IPC: G02F1/1333 ,  G02F1/136 ,  G02F1/1368 ,  G09G3/36

Abstract: PURPOSE: To improve display characteristics by preventing the nonuniformity of cell gaps and to make the field strength at the time of driving a liquid crystal display element uniform. CONSTITUTION: Projecting line parts 25a,... are formed on a protective film 25 for protecting color patterns 23R, 23G, 23B and are partially projected to gently form the parts near these projecting parts 25a,... (b). Transparent electrodes 6,... and metallic electrodes 7,... are formed on the surface of this protective film 25. At this time, the metallic electrodes 7,... are formed in the regions where the projecting line parts 25a,... are formed. The parts where the metallic electrodes 7,... are formed are pressed and recessed by means of spacers 13,... but the deformation resistance increases only in the parts made thick by formation of the projecting parts 25a,... when a lower substrate 20 constituted in such a manner is stuck together with an upper substrate 10 as shown in (d). Excessive recessing is thereby prevented and the cell gaps are made uniform.

公开(公告)号：JPH0876101A

公开(公告)日：1996-03-22

申请号：JP24193794

申请日：1994-09-08

Applicant: CANON KK

Inventor： OKADA SHINJIRO ,  KOJIMA MAKOTO ,  TAKAO HIDEAKI ,  TOMONO HARUO ,  MATSUO YUJI

IPC: G02F1/1333

Abstract: PURPOSE: To prevent deposition of a resin on the surface of metal electrodes and to prevent delay of voltage waveforms. CONSTITUTION: A glass substrate 11 on which lots of metal electrodes are formed and a flat smooth die 16 on which a UV-curing resin 13 is dropped are set on a pressing machine 30 and pressed. In the pressed state, the edge part of the substrate 11 is irradiated with UV light to cure the resin 13 in the edge part. With this cured resin 13, flatness of the glass substrate 11 can be maintained in a good state even after the pressed state is released. Therefore, uneven film thickness of the resin 13 or deposition of the resin on the surface of metal electrode can be prevented. As a result, even when a transparent electrode is formed on the surface of metal electrodes, good continuity between the transparent electrode and metal electrodes can be maintained, which decreases the resistance and prevents delay in voltage waveforms.

公开(公告)号：JPH06324336A

公开(公告)日：1994-11-25

申请号：JP13103993

申请日：1993-05-10

Applicant: CANON KK

Inventor： TAKAO HIDEAKI ,  ASAOKA MASANOBU ,  KOJIMA MAKOTO

IPC: G02F1/1337

Abstract: PURPOSE:To make it possible to obtain uniform orientation over a large area with good reproducibility and to improve a display grade by subjecting oriented films to rubbing treatments in different >=2 directions and specifying the pretilt angles of the oriented films to specific values or above. CONSTITUTION:At least one of the oriented films 14a and 14b are subjected to the uniaxial orientation treatments by rubbing in different >=2 directions. The oriented films are so arranged that the final rubbing treatment directions are parallel and the same. A ferroelectric chiral smectic liquid crystal 15 is arranged between substrates 11a and 11b and the distance of the spacing between the substrates 11a and 11b is set at a distance sufficiently small to suppress the formation of the spiral arrangement structure of the liquid crystal 15. A bistable orientation state is generated in the liquid crystal. The pretilt angles of the oriented films 14a, 14b are >=5 deg..

公开(公告)号：JPH06180453A

公开(公告)日：1994-06-28

申请号：JP35291792

申请日：1992-12-14

Applicant: CANON KK

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

IPC: C08G61/12 ,  C08G61/10 ,  C09K19/02 ,  G02F1/1337

Abstract: PURPOSE:To form a film by low temp. calcination, to obtain a large tilt angle theta, and to provide a liquid crystal device by which high contrast images can be displayed. CONSTITUTION:This liquid crystal device consists of a pair of parallel substrates having transparent electrodes, oriented film on at least one substrate, and ferroelectiric liquid crystal held by the substrates. The oriented film consists of polypyrol expressed by formula. In formula, R1 is CLH2L+1 (1

公开(公告)号：JPH06180451A

公开(公告)日：1994-06-28

申请号：JP35291592

申请日：1992-12-14

Applicant: CANON KK

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

IPC: C08G73/10 ,  G02F1/1337

Abstract: PURPOSE:To provide a liquid crystal device showing high contrast between a bright state and a dark state and especially very high display contrast for multiplexing driving and giving high-quality display and an effect to prevent vissually offensive afterimages. CONSTITUTION:This liquid crystal device consists of a chiral smectic liquid crystal inserted between a pair of parallel substrates having electrodes and a polyamide-imide oriented film on at least one substrate. The polyamide-imide has a structural unit expressed by formula in the main chain. In formula, R1 is a bivalent aliphatic group or aromatic group, R2 and R3 are univalent aliphatic groups or aromatic groups, and (x) is an integer >=1.

公开(公告)号：JPH05216040A

公开(公告)日：1993-08-27

申请号：JP4781292

申请日：1992-02-05

Applicant: CANON KK

Inventor： TAKAO HIDEAKI ,  ASAOKA MASANOBU ,  KOJIMA MAKOTO

IPC: G02F1/1337

Abstract: PURPOSE:To provide the liquid crystal element which has a high contrast in a bright state and a dark state and is high in the display contrast at the time of multiplex driving and with which an extremely high-grade display is obtainable and an offensive after-image phenomenon does not arise. CONSTITUTION:The oriented films 14a, 14b of the liquid crystal element constituted by clamping a chiral smectic liquid crystal 15 between pair of parallel substrates 11a, 11b formed with transparent electrodes 12a, 12b and having polyimide oriented films contg. F atom of

公开(公告)号：JPH05216039A

公开(公告)日：1993-08-27

申请号：JP4781192

申请日：1992-02-05

Applicant: CANON KK

Inventor： ASAOKA MASANOBU ,  KOJIMA MAKOTO ,  TAKAO HIDEAKI

IPC: G02F1/1337

Abstract: PURPOSE:To provide the liquid crystal element capable of stably attaining a display which generates a large tilt angle and by which a high-contrast image is uniformly displayed in a wide area and the generation of after-images is obviated. CONSTITUTION:The oriented films of the liquid crystal element constituted by having the oriented films on at least either of a pair of the substrates provided with transparent electrodes and clamping a ferroelectric liquid crystal between these substrates consist of the polyimide composite consisting of the diamine component expressed by formula I and >=2 kinds of the acid components expressed by formula II. In the formula I, 0