Hitachi, Ltd.

Michio Tsukii

Mitsuo Nakatani

Hideaki Yamamoto

Haruo Matsumaru

Akira Sasano

Ryoji Oritsuki

Saburo Oikawa

Tetsuaki Suzuki

Hiroshi Kikuchi

Hitoshi Oka

Toshiyuki Koshita

Yasushi Sano

Satoru Todoroki

Takumi Karasawa

Takashi Atobe

Masato Kikuchi

Hiroshi Yoshioka

Takaaki Ishikawa

Kazuhiko Mizuno

Kazuo Shirahashi

Fumiaki Yonai

Eiichi Nishiyama

Kunio Shimada

An anodized oxide film of Al is formed on a scanning signal line and a gate electrode. Al&mdash;Ta is used as material of each of the scanning signal line and gate electrode. The thickness of the anodized oxide film is set to at least 1,000 angstroms. The fabrication yield and reliability can be improved.

Active matrix display device using aluminum alloy in scanning signal line or video signal line

An anodized oxide film of Al is formed on a scanning signal line and a gate electrode. Al--Ta is used as material of each of the scanning signal line and gate electrode. The thickness of the anodized oxide film is set to 1,000 angstroms or more. The fabrication yield and reliability can be improved.

Active matrix display device using aluminum alloy in scanning signal

A liquid crystal display device is produced by effecting in the course of its production steps a resist-peeling method including the steps of (a) changing the quality of a resist layer on a substrate, (b) contacting the changed resist with a liquid containing 2-amino-1-ethanol, and (c) removing the liquid containing the thus peeled resist from the surface of the etched resist, and optionally, (d) regenerating a liquid containing 2-amino-1-ethanol by distillation from the liquid used in step (c) and reusing the regenerated liquid in step (b).

Process for stripping photoresist while producing liquid crystal display

An anodized oxide film of Al is formed on a scanning signal line and a gate electrode. An alloy of Al containing Ta and Ti is used as material of each of the scanning signal line and gate electrode. The thickness of the anodized oxide film is set to 1,000 angstroms or more. The fabrication yield and reliability can be improved.

A liquid crystal display device comprises: a liquid crystal display panel including a liquid crystal interposed between first and second transparent plates; a set of conductive lines disposed on a surface of at least one of said transparent plates; and a set of electrically conductive pads connected to respective first ends of the conductive lines. Each of the conductive lines has a lower layer made of aluminum or aluminum alloy and an upper layer made of a transparent conductive film. The aluminum or aluminum alloy layers in the conductive lines do not extend into any of the layers used to construct the pads. Each pad, instead, is formed of only a transparent conductive film. Additionally, the conductive lines have respective second ends which are commonly connected to a short-circuiting line. Disposed within the line is another electrically conductive pad, constructed in the fashion the pads in the aforementioned set are constructed. The pad in the short-circuiting line advantageously functions to receive test signals from a probe individually input into the pads at the first ends of the conductive lines. A user therefore can identify faulty conductive lines by determining whether test signals input into the pads at the first end of the lines are received at the pad in the short-circuiting line.

Matrix liquid crystal, display device having testing pads of transparent

A resist is peeled without leaving a residue after peeling, by bringing a resist-peeling liquid comprising a primary aliphatic amine of 2-6 carbon atoms into contact with the surface of an etched novolak positive photoresist, and removing the resist-peeling liquid containing the thus peeled resist from the surface of the etched resist. The used resist-peeling liquid can easily be recovered and regenerated.

Resist-peeling liquid and process for peeling a resist using the same

In a proposed color cathode-ray tube with deflection yoke, adjustment of static convergence and purity is performed by controlling the polarities and magnetization forces of a plurality of pole pieces made of metal alloy circumferentially held around the outer periphery. Tap bolts pressing the external wall of a funnel nearly in the perpendicular direction are so disposed on a deflection yoke mounting member as to be adjacent to the funnel of the color cathode-ray tube. The tap bolts press the funnel to fix the deflection yoke.

Color cathode-ray tube having deflection yoke

This invention is concerned with apparatus for automatically measuring misconvergence in the production of color Braun tubes or color display apparatus using color Braun tubes. This misconvergence measuring apparatus includes a photoelectric transducer of split light-sensitive structure which is disposed in front of the phosphor screen of a color Braun tube with a deflection yoke mounted, a deflection source for supplying to the deflection yoke a waveform for deflecting the electron beams of the color Braun tube by a constant unit at a time, and a control unit for detecting the excited bright position on the phosphor screen at which the photoelectric transducer produces the maximum output and for controlling the deflection source, whereby the output of the photoelectric transducer is measured for the respective three primary colors of red R, green G, blue B or color differences G-B, B-R and R-G, and when the maximum value or centroid position of each color or color difference is obtained, the desired amounts of horizontal and vertical misconvergence are automatically measured from the positional differences of horizontal and vertical deflection. Moreover, a maximum output detection circuit for a color Braun tube is provided in which the output waveform from the photoelectric transducer is clearly derived in the form of an approximately normal distribution by use of focus potential change.

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Mobara, Japan

Michio Tsukii