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. 21, 1997
Filed:
Nov. 10, 1994
International Business Machines Corporation, Armonk, NY (US);
Abstract
To prevent the damage of a display device by static electricity and to drive the display device with low voltage, on a transparent substrate of a liquid crystal display, two short circuit wires are provided, connected via a resistance. Each of the data lines is connected to the one short circuit wire via a first switching circuit, whereas each of the gate lines is connected to the other short circuit wire via a second switching circuit. A switching circuit is turned on when the potential difference between a data line and the one short circuit wire or the potential difference between a gate line and the second short circuit wire exceeds a predetermined value. When images are displayed on a liquid crystal display, the average voltage applied to each of data lines is applied to the first short circuit wire and the average voltage of voltages applied to each gate line is applied to the second short circuit wire to turn on the switching circuits.