Canon Kabushiki Kaisha

Cannon Kabushiki Kaisha

Tatsuo Murata

Hideaki Takao

Masaru Kamio

Nobuyuki Sekimura

Kazuya Ishiwata

Miki Tamura

Junichiro Kanbe

Takashi Enomoto

Naoya Nishida

Masayuki Shimamune

Yoshiki Kikuchi

Noriyuki Nakai

Mutsuo Mitsui

Masaaki Suzuki

Yasuyuki Watanabe

Taiko Motoi

Yutaka Inaba

Makoto Kojima

Toshifumi Yoshioka

Eiji Sakamoto

Akio Yoshida

Masaki Kuribayashi

Keishi Danjo

Masami Yokota

A liquid discharge head has an element base plate provided with a plurality of heat generating members and electrode wiring formed by thin-filmed electrode and common thick-filmed electrode for applying driving signals to the heat generating members, and with the structure arranged to form a flow path structural member to constitute discharge ports and liquid flow paths corresponding to each of the heat generating members, the common thick-filmed electrode is covered and sealed by the flow path structural member, and then, the driving IC assembled on an IC assembling and others are sealed by use of sealant, hence making it possible to secure the sealing capability, while making the distance between the common thick-filmed electrode and the driving IC smaller for the effective utilization of the area of the base plate. Thus, the element base plate can be made smaller.

Liquid discharge head

A photosensitive colored material mainly composed of an aromatic polyamide or polyimide resin having a photosensitive group in its molecule, a coloring matter, and a solvent, wherein; said solvent comprises a first solvent component capable of independently dissolving said resin alone and a second solvent component having a smaller surface tension than said first solvent component and incapable of independently solving said resin; and the content of said first solvent component is larger than the content of said second solvent component.

Photosensitive material, color filter and liquid crystal device having

Process for producing a color filter

A large-sized liquid crystal panel uniformly filled with a liquid crystal material may be produced through a process including the steps of: fixing a pair of substrates with a sealing member disposed therebetween to form a blank panel having an injection port, reducing a pressure within the panel, applying a liquid crystal material onto the injection port, heating the liquid crystal material to its isotropic temperature, injecting the liquid crystal material into the panel under a pressure, and filling the panel with the liquid crystal material under heating and pressurization from the injection port toward the panel inside. The pressure within the panel before the injection is reduced at a rate not exceeding 25 torr/min. The pressure for injection is increased at varying rates, e.g., with an intermediate constant pressure period. In the filling step, a portion of the liquid crystal material near the injection port is held in its isotropic phase and the liquid crystal material except for the portion is transformed at least once into a smectic phase.

Process for injecting liquid crystal into a liquid crystal panel

A process for the preparation of a color filter, comprising repetitively forming a patterned opaque film and a photosensitive colored resin film on a substrate and exposing the resin film to exposure from the back side of the substrate using the pattern as a mask; and a color filter prepared by the process.

Functional substrate for controlling pixels

Process for producing liquid crystal panel including reducing the

A process for producing an electrode substrate for use in a liquid crystal device in which a laminate film comprised of a transparent conductive film and a metal film is formed of a first side of a transparent substrate. The laminate film is pattern-etched so as to form islands of the laminate film in a predetermined pattern. A photosensitive anaerobic colored resin is applied on the transparent substrate on which the islands of laminate film are arranged in the predetermined pattern. The transparent substrate is uniformly exposed to a light from a second side of the substrate opposite to the first side in an oxygen-containing atmosphere. Unexposed portions of the photosensitive anaerobic resin are removed so as to leave the photosensitive anaerobic resin only in the spaces between adjacent islands of the laminate film, for forming a light-shielding film in each of the spaces. The metal film of each laminate film island is etched so as to remove unnecessary portions of the metal film, thereby forming metal electrodes wired along edges of the transparent conductive film.

Electrode substrate with light shielding film having upper surface

Surface Stability Ferroelectric Liquid Crystal Device having color filters assembled avoids, generation of alignment defect ocurring in the initial alignment control step by providing space of 0-5 microns between adjacent trapezoidal color filters having prescribed taper angle and thickness.

Liquid crystal display having trapezoidal color filters formed from a

A smectic liquid crystal is injected into a liquid crystal panel according to the vacuum injection scheme. The liquid crystal is applied over an injection port of a blank panel while maintaining the panel at a temperature below a temperature at which the liquid crystal shows a fluidity and controlling the liquid crystal at a viscosity of 0.0005 -0.005 kg/ms. As a result, an appropriate amount of the liquid crystal can be applied, thereby providing a liquid crystal panel free from inversion of bubbles and good and uniform alignment free from alignment failure.

Apparatus for vacuum injecting liquid crystal

A surface stability ferroelectric liquid crystal device has color filters with adjacent resin films. The resin films are provided by a first resin film and a second resin film, wherein the second resin film is formed with a resin solution having a viscosity higher than that of the first resin film.

Liquid crystal device having two resins films formed from solutions of

Surface Stability Ferroelectric Liquid Crystal Device having color filters assembled therein avoids generation of alignment defect ocurring in the initial alignment control step by providing space of 0-5 microns between adjacent color filters.

Ferroelectric liquid crystal color filter surrounded by a heat fusible

Increasing temperature injection methods for a liquid crystal cell

An aqueous mixture etchant containing hydroiodic acid and ferric chloride is suitable for etching ITO to form a minute electrode pattern as used in a liquid crystal display device. When the etchant has caused a decrease in etching performance due to a compositional change, it can be effectively regenerated by replenishing appropriate amounts of hydrochloric acid and pure water, or an appropriate amount of a dilute hydrochloric acid at a constant concentration, while minimizing the use of hydroiodic acid and ferric chloride which are rather expensive compared with hydrochloric acid and pure water.

Method and apparatus for regenerating etching liquid

A smectic liquid crystal is injected into a liquid crystal panel according to the vacuum injection scheme. The liquid crystal is applied over an injection port of a blank panel while maintaining the panel at a temperature below a temperature at which the liquid crystal shows a fluidity and controlling the liquid crystal at a viscosity of 0.0005-0.005 kg/ms. As a result, an appropriate amount of the liquid crystal can be applied, thereby providing a liquid crystal panel free from inversion of bubbles and good and uniform alignment free from alignment failure.

Method and apparatus for injecting liquid crystal

Surface Stability Ferroelectric Liquid Crystal Device having color filters assembled therein avoids, generation of alignment defect ocurring in the initial alignment control step by providing space of 0-5 microns between adjacent color filters.

Growing community of inventors

Atsugi, Japan

Tatsuo Murata