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:
Sep. 03, 1996
Filed:
Aug. 31, 1994
Koji Onodaka, Mobara, JP;
Katsuya Hiraga, Mobara, JP;
Yoichi Kobori, Mobara, JP;
Satoshi Nagasawa, Mobara, JP;
Futaba Denshi Kogyo K.K., Mobara, JP;
Abstract
A display-integrated tablet device is disclosed and is capable of increasing an actual display period to improve luminance of an image displayed. An actual image display period in a one-image-plane display period is divided into a plurality of block display periods and a detection period is provided before or after each of the block display periods. During the detection period, a pulse for detection is generated from a stylus pen and a voltage obtained at each of electrodes is input to each of X- and Y-coordinate detection sections and held in those sections for coordinate detection. The device includes scan-side switch sections for respectively connecting X- and Y-scan drivers to X- and Y-electrodes, and detection-side switch sections for respectively connecting X- and Y-coordinate detection sections to the X- and Y-electrodes, so that the scan-side switches sections and detection-side switch sections are turned on and turned off during an actual display period, and turned off and turned on during a detection mode period, respectively.