Method of and unit for displaying an image in sub-fields
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 9, 2004
Grant Date -
Nov 15, 2001
app pub date -
Mar 27, 2001
filing date -
Mar 31, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A display device (406) is driven in a number of sub-fields. Each of the sub-fields is for outputting a respective illumination level by the display device. In each sub-field, a pixel of the displayed image may emit an amount of light corresponding to the particular sub-field, depending on whether it is switched on or not. A required intensity level of the pixel is realized by selecting an appropriate combination of sub-fields in which the pixel is switched on. The number and relative weights of the available sub-fields are such that an intensity level can be realized in more than one way. In the display unit (300) for driving the device, the sub-pixels of a pixel are separately controlled regarding the choice as how the required intensity level is to be realized. The combinations of sub-fields for the respective sub-pixels are selected such that the sub-pixels have their subjective peak in luminance at different instants in the field period, thus reducing the flicker of the display.
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