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. 24, 1988
Filed:
Jan. 14, 1986
Sony Corporation, Tokyo, JP;
Abstract
A dynamic white uniformity correcting apparatus for a three-color display for displaying a color picture in response to three primary color signals and includes a cathode ray tube which has means for emitting a plurality of electron beams and a display screen divided into a plurality of incremental areas and the display also includes deflection means for scanning the plurality of electron beams across the display screen to produce the color picture in response to three primary color signals and wherein a correction signal generating means generates at least two correction signals for each incremental area of the display screen and the correction signal generating means includes a correction signal storage means for storing the correction signals. At least two amplitude modulators are provided for adjusting the level of different ones of the three primary color signals as a function of the correction signals and means for reading out the correction signals from the correction signal storage means as the plurality of electron beams are scanned across the incremental areas of the display screen so as to supply read out correction signals to the amplitude modulators to adjust the levels of the primary color signals to correct the white uniformity of the color picture.