Patent ID: 9671245
Date: 2017-06-06
CPC Classifications: G01C,G09G

Claim:
1. A display device comprising: a display unit that includes a dielectric material between two substrates that face each other and a plurality of pixel circuits that apply an electric field to the dielectric material according to an image input gradation for each of a plurality of pixels arranged in a matrix, and displays an image using the plurality of pixels; a capacitance detection unit that outputs a detection signal of a magnitude corresponding to a value of a capacitance of the dielectric material; and a control device that determines, on a basis of the detection signal from the capacitance detection unit, that the display is normal when a correlation value of the capacitance to the image input gradation is in a predetermined correlation, and that the display is abnormal when a plurality of correlation values of the capacitance to a plurality of image input gradations are not in the predetermined correlation, wherein the control device determines the plurality of correlation values are not in the predetermined correlation on a basis of at least one selected from a group comprising: