Display device
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United States of America Patent
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Mar 18, 2003
Grant Date -
Sep 12, 2002
app pub date -
Dec 10, 1999
filing date -
Dec 24, 1998
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The present invention relates to a display device including an interface device, which can prevent from reducing a resolving power of gray scales for a dark picture signal is provided. The interface device according to the present invention is provided to prevent from decreasing a resolving power of luminance gray scales by setting a dynamic range of an analog digital converter according to a peak value of an analog picture signal. Further, a luminance control signal for determining a luminous level of the picture to be displayed is set according to the peak value of the analog picture signal. As the result, the interface device according to the present invention can generate a display signal displaying a picture having a sufficient resolving power of gray scales with a luminance (brightness) required for the darkness, even if a dark picture, of which analog picture signal is comparatively small, is generated.
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