摘要 |
An image processing circuit for driving a liquid crystal that encodes and decodes image data to reduce the size of the frame memory that, when it quantizes ( 45 ) each block of image data in the current frame and outputs encoded data, selects ( 44 ) a mean value on the basis of the dynamic range of each unit block and adjusts the amount by which the image data is reduced ( 53 ). This type of control enables it to reduce the amount of image data that must be temporarily stored in the delay circuit ( 5 ), so the size of the frame memory constituting the delay circuit can be reduced while minimizing the encoding error that occurs in the encoder ( 4 ). Consequently, the image data can be corrected accurately and appropriate voltage corrections can be applied to the liquid crystal without the effects of coding and decoding errors.
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