Apparatus for automatically setting over-driving look-up table for liquid crystal display device and control method thereof

An over-driving look-up table automatic setting apparatus for a liquid crystal display device, the apparatus comprising:

• an input device that specifies a critical response condition for the liquid crystal display device;
• a sensor that detects an amount of light from the liquid crystal display device and that generates a signal corresponding to the amount of light;
• a response state detecting unit that measures a response state from the signal generated by the sensor;
• a controller that receives the response state for gray scale differences from each of a plurality of gray scale values to determine transient pixel data producing the response state that satisfies the critical response condition and that sets an over-driving look-up table by mapping the transient pixel data to the corresponding gray scale differences for each of the gray scale values;
• and
• a memory that stores the over-driving table look-up table,
• wherein the controller allows reference image data, transient image data and image data for measurement to be sequentially and repeatedly displayed by the liquid crystal display device and monitors the response state of the liquid crystal display device,
• wherein the response state detecting unit includes a transient response detector that measures a transient response rate of the signal from the sensor and a response time detector that measures a transient response time of the signal from the sensor,
• wherein the critical response condition includes data specifying a critical transient response rate and a critical response time for the liquid crystal display device, and
• wherein the critical response condition includes a designation data identifying one of the critical transient response rate and the critical response time as a primary critical response condition.