| 摘要 |
<P>PROBLEM TO BE SOLVED: To reduce a power consumption of a data line drive circuit including a frame memory. <P>SOLUTION: A data line drive circuit comprises a writing detection circuit which monitors a writing request signal of a gray scale data into a frame memory and detects a writing request, a plurality of gradation amplifiers which output a gradation voltage in order to drive the data line, and a determination circuit which calculates an arithmetic data to set some gradation amplifiers in an inactive state among the plurality of gradation amplifiers on the basis of the gray scale data latched from the frame memory. The determination circuit prohibits an input of the latched gray scale data into the determination circuit for a predetermined period of time in which there is no writing of the gray scale data into the frame memory. <P>COPYRIGHT: (C)2012,JPO&INPIT |
