Mitsubishi Denki Kabushiki Kaisha

Kenichi Niki

Hayato Takasago

Tetsuro Makita

Kohei Adachi

Akira Ishizu

Hideaki Otsuki

Tohru Kokogawa

Toru Kokogawa

In a liquid crystal display device with a drive circuit board connected to the peripheral portion of a liquid crystal display panel, the circuit board is disposed behind the liquid crystal display panel and also the circuit board is connected with the liquid crystal display panel by means of a connecting member in film form, whereby the liquid crystal display device is miniaturized and efficiency of the assembly work is improved. Further, the circuit board is made up of plural drive circuit modules of the same type whereby the efficiency in the assembly and inspection process is still improved.

Liquid crystal display device having heat-insulating members and driving

A matrix-addressed type liquid crystal display device includes a display element conductor pattern deposited on a matrix-addressed substrate and effects display by storing charges into liquid crystal held at the space between the matrix-addressed substrate and an opposing substrate by using a voltage supplied through the display element conductor pattern. The matrix-addressed type liquid crystal display device has a recovery conductor pattern for preventing a line-shape defect in a screen due to a breakage in the display element conductor pattern. The recovery electrode is located below the sealing material. The opposing substrate and the matrix-addressed substrate are aligned with each other at one side thereof, and an inlet for liquid crystal is provided at this aligned side. Liquid crystal is fed into the space between the matrix-addressed substrate and the opposing substrate from a liquid crystal reservoir through the inlet without immersing the substrates in the liquid crystal reservoir.

Method for producing a liquid crystal display with recovery electrodes

A matrix-addressed type liquid crystal display device includes a display element conductor pattern deposited on a matrix-addressed substrate and effects display by storing charges into liquid crystal held at the space between the matrix-addressed substrate and an opposing substrate by using a voltage supplied through the display element conductor pattern. The matrix-addressed type liquid crystal display device has a recovery conductor pattern for preventing a line-shape defect in a screen due to a breakage in the display element conductor pattern. The opposing substrate and the matrix-addressed substrate are aligned with each other at one side thereof, and an inlet for liquid crystal is provided at this aligned side. Liquid crystal is fed into the space between the matrix-addressed substrate and the opposing substrate from a liquid crystal reservoir through the inlet.

Matrix-addressed type liquid crystal display apparatus and method for

Liquid crystal display device

A tape carrier for mounting and bonding an IC chip on substrate having an interconnection pattern is disclosed. The tape carrier comprises a peripheral and a central film portion made of an electrically insulating flexible material, and a set of leads carried at least one the peripheral film portion. The central portion covers the central area of the surface of the IC chip on which the bumps are formed. An aperture is formed between the peripheral and central film portion which has enough dimension to allow the leads to be bonded to the bumps of the IC chip therethrough. Some of the leads extend over the central film portion and, extending out of a side of the central film portion, reach the opposing area of the peripheral film portion across a strip of the aperture, thereby effecting electrical connection from the bumps to far-away portions of the circuitry on the substrate and between the bumps themselves. The central film portion may form an island separated from the peripheral potion by a ring-shaped aperture; alternatively, it may form a tongue-shaped appendage projecting into the aperture. The leads and the IC chip may be situated on the same surface of the film portions; alternatively, they may be situated on the opposite surfaces thereof.

Tape carrier for assembling an IC chip on a substrate

In a testing device for testing electric circuit board having test terminals on the board parallel to each other, conductor strips are arranged in conformity with the test terminals, and a pressing member is provided for pressing the conductor strips on the test terminals.

Testing device for electrical circuit boards

A screen printing apparatus comprising a screen having an opening or openings of a desired print pattern and having a lower surface being positioned adjacent to a substrate to be printed, and a nonflexible squeegee comprising a cavity for containing a material to be printed on the substrate. The cavity is defined by the interior surfaces of surrounding walls extending generally vertically from the lower extremities at which the squeegee directly contacts the upper surface of the screen. While the squeegee travels with respect to the screen the material to be printed flows from the cavity into the openings of the screen, and thereby onto the substrate. The squeegee may be formed of stainless steel, a ceramic material or a synthetic resin.

Growing community of inventors

Amagasaki, Japan

Kenichi Niki