The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 13, 1981
Filed:
Jun. 02, 1978
Takehiko Sasaki, Yamatokoriyama, JP;
Yuji Yashiro, Osaka, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
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.