Abstract: A display device including a pixel having a memory. The pixel includes at least a display element, a capacitor, an inverter, and a switch. The switch is controlled with a signal held in the capacitor and a signal output from the inverter so that voltage is supplied to the display element. The inverter and the switch can be constituted by transistors with the same polarity. A semiconductor layer included in the pixel may be formed using a light-transmitting material. Moreover, a gate electrode, a drain electrode, and a capacitor electrode may be formed using a light-transmitting conductive layer. The pixel is formed using a light-transmitting material in such a manner, whereby the display device can be a transmissive display device while including a pixel having a memory.

Abstract: The scoliosis evaluation system comprises a 3D sensor (100) that takes the back of a subject and acquires the 3D data thereon; a characteristic part designator (102) that designates a characteristic part of which the degree of curvature is to be measured on the back of the subject, an uneven state detector (103) that detects an uneven state of a body surface in a horizontal direction based on the 3D data on the characteristic part designated by the characteristic part designator, and a display monitor (200) that displays a result detected by the uneven state detector.