Patent ID: 9087474
Filing Date: 2015-07-21
Classification: G09G

Abstract:
1. A liquid crystal display (LCD) device, comprising: a plurality of data driver ICs comprising a gamma voltage generator that generates a gamma voltage; a timing controller that generates an embedded point-to-point interface (EPI) packet for controlling the data driver ICs; an EEPROM storing packet data that controls the gamma voltage; a power supply that generates a driving voltage; a reference voltage generator that reduces the driving voltage, and supplies the reduced driving voltage to the data driver ICs; and a printed circuit board (PCB), the reference voltage generator, the data driver ICs, and the timing controller being mounted on the PCB, wherein a first transmission line which connects the reference voltage generator and the data driver ICs, and a second transmission line which connects the timing controller and the data driver ICs are formed on the PCB, wherein the gamma voltage generator generates a plurality of gamma voltages based on the reference voltage directly supplied from the reference voltage generator external to the data driver ICs via the first transmission line and the EPI packet directly supplied from the timing controller via the second transmission line.