DISPLAY DEVICE PROVIDED WITH OPTICAL SENSOR

摘要

Provided is a display device having a plurality of optical sensors on a display panel. A liquid crystal panel (11) having a built-in sensor includes a plurality of pixel circuits and a plurality of optical sensors which are two-dimensionally arranged in a pixel array (18). A panel driving circuit (17) writes a signal on the pixel circuit corresponding to display data (D3), and reads out signals from the optical sensors corresponding to a receiving light quantity. An image processing section (12) switches display data to be used prior to reading out the signals by the panel driving circuit (17) to fixed data suitable for image input. As the fixed data, white image data and blue image data are used. Image input and touch position detection can be performed at a high accuracy, irrespective of the display image, by eliminating influence of the display image by inputting the image after displaying the image suitable for image input by using the fixed data. The display device can be used for a liquid crystal display device.