Image display control device

Details Image display control device Image display control device

2011-07-26

2011-07-26

Shankar, Vijay (Department: 2629)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

C345S089000, C345S204000, C345S207000, C345S690000

Reexamination Certificate

active

07986295

ABSTRACT:
An image display control device includes a statistical information acquisition section that quickly acquires statistical information of a video image. In the statistical information acquisition section, an image signal of a video image is parallelly input to each of a plurality of statistical value units (EX0to EX255) having an identical configuration to simultaneously update a luminance count value. A luminance maximum value/minimum value detector and a standard deviation calculation section respectively calculate a luminance maximum value/minimum value and a standard deviation value at high speed based on the count values. Statistical information relating to chroma is also acquired by providing a luminance total value unit (ES(Y)), a blue chroma total value unit (ES(Cb)), and a red chroma total value unit (ES(Cr)) having an identical configuration. The supply of an operation clock signal to each circuit is suspended using a gate circuit, if necessary.

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