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:
Aug. 05, 2003
Filed:
Oct. 19, 2000
Iwo-Martin Mergler, Southampton, GB;
Neil M. Johnson, Harefield, GB;
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
A display arrangement is disclosed comprising a flat panel display device having an array of pixels, and a driving circuit arrangement for switching each of the pixels between two intensity levels at a rate greater than the frame refresh rate so as to produce the visible effect of intermediate intensity levels. In particular, the driving circuit comprises a plurality of intensity level error registers, one for each intermediate intensity level; means for selecting one of the intensity level error registers according to.a signal representative of the visible effect of the intermediate intensity level that it is desired that a particular pixel should produce; means for setting the particular pixel to either a first or second intensity level depending on the value contained in the selected error register; and means for updating the value contained in the selected register by adding a value corresponding to the first or second intensity level to which the particular pixel was set, subtracting a value corresponding to the intermediate intensity level, the visible effect of which it is desired that the particular pixel should produce, and adding a random number.