DISPLAY DEVICE

摘要

Provided is a liquid crystal display device wherein adverse effects of noise are reduced without requiring calibration operation when a power supply is turned on and an SN ratio of a light receiving system is improved. The liquid crystal display device is provided with a plurality of display cells (21) having a display circuit (210); a light receiving cell (22) including a light receiving element (221); and a reference cell (23), which has a configuration equivalent to that of the light receiving cell and has light entry to the light receiving element (221) blocked; and a light receiving signal processing circuit (6), which performs differential signal processing of an output signal of the light receiving cell (22) and an output signal of the reference cell (23) and removes noise.