Patent ID: 7737929

Claim:
A display device comprising: a display panel; a plurality of drive circuits which drive the display panel; and a plurality of low voltage differential signal lines which supply low voltage differential signals to the drive circuits, wherein: the drive circuit includes an input circuit to which the low voltage differential signals are inputted, the low voltage differential signal lines are formed in a zigzag pattern to overlap the drive circuits, the input circuit includes a level shift circuit and a differential input circuit, the level shift circuit changes a voltage level of the low voltage differential signals and outputs an output low voltage differential signal to the differential input circuit within a stable operation range, the level shift circuit includes a constant-current power source transistor, a first input terminal, a second input terminal, a first output terminal, and a second output terminal, the constant-current power source transistor electrically disconnects from a power source line based on a standby signal, and the level shift circuit receives one pair of the low voltage differential signals through the first input terminal and the second input terminal, respectively, the level shift circuit outputs one pair of the output low voltage differential signals to the first output terminal and second output terminal, respectively, and when the low voltage differential signals exceed the stable operation range, the level shift circuit generates a fixed offset voltage, which becomes a center of the amplitudes of the output low voltage differential signals.