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:
May. 01, 1979
Filed:
Aug. 31, 1977
Tadashi Hatta, Nagaokakyo, JP;
Matsuhiko Hirano, Yamatokoriyama, JP;
Sumio Kita, Nara, JP;
Shinobu Shiotani, Nara, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A drive system is provided for a thin-film EL display panel which includes and EL thin layer sandwiched between a pair of dielectric layers, a plurality of scanning line electrodes formed on one of the dielectric layers, and a plurality of data line electrodes formed on the other of the dielectric layers. The scanning line electrodes and the data line electrodes, in combination, define a matrix pattern. Scanning pulses are sequentially applied to the scanning line electrodes, and a data sugnal is applied to the data line electrode which includes a selected picture point where the data line electrode crosses the scanning line electrode which is receiving the scanning pulse. Scanning line electrodes which are not receiving the scanning pulse are connected to receive a voltage signal of which a level is below the threshold level of the light emission.