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Automatic Display Load/Limit Calibration

IP.com Disclosure Number: IPCOM000042932D
Original Publication Date: 1984-Jun-01
Included in the Prior Art Database: 2005-Feb-04

Publishing Venue

IBM

Related People

Authors:
Barclay, TW Cielo, JR Trushell, JB [+details]

Abstract

In plasma display apparatus, due to the heavy current or load, demand the number of pels (picture elements) which can be displayed at one time is limited. To avoid overload, it is necessary to monitor the image content on the display. One technique to monitor the load on a display is to compare the value of a display parameter which is proportional to the load, to a fixed, i.e., a constant or a manually adjustable, value. When the two values being compared are equal, the display load is known. In the case of a constant value, the accuracy of determining the display load is dependent on the display tolerances, variations and drift; for the manually adjustable value, the tolerances, variations and drift are compensated for by a calibration procedure.