Patent ID: 8681133
Filing Date: 2014-03-25
Classification: G09G

Abstract:
1. A display driver integrated circuit (IC) for a plurality of driving circuits that operate a display panel, the display driver IC comprising: a non-volatile memory that stores a mode selection value that distinguishes whether the display driver IC is either in one of a test mode or a production mode; and a driving circuit control signal output unit that outputs one of first control signal values received from an external device and second control signal values set to a plurality of fixed values in response to whether the mode selection value stored in the non-volatile memory specifies test mode or production mode, wherein the driving circuit control signal output unit outputs the first control signal values in the test mode and the second control signal values in the production mode, and wherein the driving circuit control signal output unit operates in one of the test mode and the production mode in accordance with the mode selection value stored in the non-volatile memory regardless of whether the display drive IC is assembled into a module with the display panel.