DISPLAY CONTROL CIRCUIT, LIQUID CRYSTAL DISPLAY DEVICE COMPRISING DISPLAY CONTROL CIRCUIT, AND DISPLAY CONTROL METHOD

摘要

Provided is a display control circuit with which it is possible to display high image quality motion video inexpensively. An overdrive drive unit (122) comprises a write gradation selection unit (21) and a write gradation interpolation processing unit (22). The write gradation selection unit (21) acquires a first write gradation value and outputs first write gradation data (RDa) from SDRAM (160) when a combination of a prior frame gradation value and a current frame gradation value is present in an OS table (LUT1) and supplies the prior frame gradation value and/or the current frame gradation value which is/are nearest to the combination and the first write gradation value to the write gradation interpolation processing unit (22) when the combination is not present in the OS table (LUT1). The write gradation interpolation processing unit (22) converts the received gradation value to a voltage value, carries out a linear interpolation process using the voltage value, converts the obtained voltage value to a second write gradation value, and outputs second write gradation data (RDb).