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:
Feb. 01, 1994
Filed:
Dec. 26, 1991
Kazunori Katakura, Atsugi, JP;
Yoshio Hotta, Atsugi, JP;
Akira Tsuboyama, Sagamihara, JP;
Osamu Taniguchi, Chigasaki, JP;
Mitsuo Iwayama, Odawara, JP;
Tadashi Mihara, Kawasaki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
Since a fluorescent lamp has a very wide temperature distribution, a large temperature non-uniformity also occurs on a display unit backlighted by the lamp. On the liquid crystal display, the ratio of pulses applied the information and scanning electrodes are controlled in accordance with the temperature change, the overcome the above problem. The ratio of a pulse peak value of a compensation phase part of a scanning selection signal to a pulse peak value of an auxiliary phase part of an information signal may be changed according to a change in temperature.