Often managed via a physical jumper on the board ( ), but the firmware controls the logic timing. Firmware Installation Procedure
Look at the white sticker on your LCD panel to find the model number (e.g., HV320WHB-N00). Rr52c.03a Firmware Download
If you provide more details about the device (like the brand or what the device is used for), I might be able to give more specific advice. Often managed via a physical jumper on the