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:
Nov. 26, 1991
Filed:
May. 18, 1990
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
An image display apparatus includes a flat configuration CRT which is provided with a second set of horizontal deflection electrodes in addition to the main horizontal deflection electrodes. A sawtooth waveform correction deflection voltage is applied to the second electrodes such as to slow the rate of electron beam scanning each time a portion of a fluorescent layer pattern of the screen is scanned, thereby increasing display brightness, while in addition the correction deflection voltage and the electron beam modulation signals are phase shifted by a mutually identical amount once in each scan line such as to compensate for a position deviation between the main horizontal deflection electrodes and the fluorescent layer pattern.