Sharp Kabushiki Kaisha Corporation

Isao Fujisawa

Shintaro Hashimoto

Isamu Washizuka

Sadakatsu Hashimoto

Yukihiro Inoue

Yuuichi Sato

Masaru Kakumae

Mitsuo Ishii

Yoshio Takeda

Katsuhiko Hashimoto

Yoshitomo Kitanishi

A display circuit for driving two or more different displays includes a display memory for storing display data, an address signal generation circuit for generating address signals for the display memory, basic timing generation circuit for generating basic timing signals, an address control circuit for controlling a determination of the address of the display memory along the horizontal- and vertical-direction of the displays, and a switching circuit for switching the horizontal- and vertical-direction timing signals depending upon which one of the two or more display is selected, whereby the two or more displays are independently operated.

Display driving system for driving two or more different types of

In an electronic calculator essentially comprising a multidigit display, a keyboard and a data processor unit, a multidigit liquid crystal display is deposited together with integral key actuators of the keyboard of a flexible circuit film which carries electrical conductor leaves in a desired pattern. The conductor leaves to be in contact with terminals of the liquid crystal display are formed to extend in the direction of length of the liquid crystal display to thereby establish room for a battery compartment.

Method of constructing liquid crystal display

In an electronic calculator essentially comprising a multidigit display, a keyboard and a data processor unit, a multidigit liquid crystal display is deposited together with integral key actuators of the keyboard on a flexible circuit film which carries electrical conductor leaves in a desired pattern. The conductor leaves to be in contact with terminals of the liquid crystal display are formed to extend in the direction of length of the liquid crystal display to thereby establish room for a battery compartment.

Liquid crystal display calculator construction

Growing community of inventors

Yamatokoriyama, Japan

Isao Fujisawa