b626bc89_tsugi_JP___Patent_applications__Description
[Patent application number] 20110057918 [Published] 03-10-2011 [Description] 
DISPLAY DEVICE AND ELECTRONIC DEVICE - 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.
Kengo Akimoto, Atsugi JP - Patent applications