Driving apparatus of display panel and operation method thereof

A driving apparatus of a display panel for generating a plurality of test frame data in an optical measurement, comprising:

• a command interface circuit, configured to receive a test command comprising a grayscale parameter;
• a BIST circuit, coupled to the command interface circuit to receive the test command, and configured to generate test frame data representing a test pattern according to the test command and set a grayscale of the test pattern according to the grayscale parameter included in the test command;
• and
• a driving circuit, configured to drive the display panel to display the test frame data.

An operating method of a driving apparatus of a display panel for generating a plurality of test frame data in an optical measurement, the operating method comprising:

• receiving a test command comprising a grayscale parameter by a command interface circuit;
• receiving video frame data by a video interface circuit;
• generating test frame data representing a test pattern according to the test command and setting a grayscale of the test pattern according to the grayscale parameter comprised in the test command by a BIST circuit;
• selecting to output the test frame data in a test mode by a multiplex circuit;
• selecting to output the video frame data in a normal operation mode by the multiplexer circuit;
• and
• driving, by a driving circuit, the display panel to display an image according to the test frame data or the video frame data output from the multiplex circuit.