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:
Jun. 10, 1997
Filed:
Oct. 07, 1994
Masato Takemoto, Ayama-gun, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A coordinate detecting method for a liquid crystal display unit has the steps of generating a second display control signal for controlling a display provided in a display period and a non-display period on the basis of a first display control signal set such that one frame is constructed by only the display period; the display period and the non-display periods being set such that an image is displayed on a liquid crystal panel in the display period and is not displayed on the liquid crystal panel in the non-display period; storing transmitted image data to a memory in accordance with timings shown by the first display control signal; reading these stored image data from the memory in accordance with timings shown by the second display control signal; displaying the image on the liquid crystal panel by the read image data and the second display control signal; and detecting coordinates by a detecting pen in the non-display period. A coordinate detecting method and an apparatus for a liquid crystal integral type tablet is also shown.