US 4,244,635 AGranted

Go board using liquid crystal display or electrochromic display

AssigneeSharp Kabushiki Kaisha

InventorsTakehiko Sasaki, Yuji Yashiro

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Abstract

A checkerboard or a "go" board is implemented with a liquid crystal display or an electrochromic display. A pair of a disc pattern electrode and a ring pattern electrode are provided for showing a black "go" stone and a white "go" stone, respectively. A plurality of the disc pattern elecrodes and the ring pattern electrodes are formed on a first transparent glass substrate to serve as segment electrodes. A common electrode is provided opposite to the pair of the disc pattern electrode and the ring pattern electrode. The common electrode is arranged on the opposing second transparent glass substrate. A plurality of checks are printed on, for example, the first transparent glass substrate. The common electrodes, the disc pattern electrodes, and the ring pattern electrodes are activated by a driver coupled to a memory. The memory is adapted to store arrangement information of the black and the white "go" stones, and the blank indication.

Claims5

Dependent claims

An electro-optical board game display comprising:

first and second coplanar opposing substrates;
a pattern of game bord check lines formed on one of said substrates, said pattern being formed by a plurality of vertical lines and a plurality of horizontal lines;
a plurality of disc pattern electrodes formed on said first substrate, each of said disc pattern electrodes being centered on an intersection of one of said horizontal lines and one of said vertical lines;
a plurality of ring pattern electrodes formed on said first substrate, each of said ring pattern electrodes being formed concentric to one of said disc pattern electrodes;
a plurality of common electrodes formed on said second substrate, each of said common electrodes being disc-shaped and positioned directly across from one of said disc pattern electrodes and the ring pattern electrode concentric thereto;
first lead electrodes connecting horizontal rows of said ring pattern electrodes together to form ring pattern electrode rows;
and
second lead electrodes connecting horizontal rows of said disc pattern electrodes together to form disc pattern electrode rows;
each of said ring pattern electrodes having a discontinuous portion which allows said second lead electrodes to connect to said disc pattern electrodes, said discontinuous portion of each of said ring pattern electrodes being formed in juxtaposition to one of said game board check lines to render the discontinuous portion of each of said ring pattern electrodes hidden from view.

6 more elements

Dependencies are inferred from the claim text.