Patent ID: 8704809

Claim:
A display device, comprising: a pixel circuit for formation of a pixel for an image to be displayed in the display device and including: a first and a second active element; a predetermined electrode for formation of a capacitance for holding pixel data; the predetermined electrode being connected to a predetermined first wiring via the first active element and to a control terminal of the first active element via the second active element, the control terminal of the first active element having a capacitance coupling with a predetermined second wiring, the second active element having a control terminal connected to a predetermined third wiring; and a plurality of data signal lines; wherein the display device has a first operation mode for a voltage supply from the first wiring to the predetermined electrode, wherein the pixel circuit is connected to one of the data signal lines, and wherein a predetermined voltage pulse is applied to the second wiring, whereby the first active element makes the voltage supply if the second active element is turned OFF based on a voltage value of the predetermined electrode relative to a voltage of the third wiring, in the first operation mode, wherein the voltage of the second wiring when the voltage pulse application is not performed is lower than when the voltage pulse application is performed if the first active element is provided by an N-channel transistor, whereas the voltage of the second wiring when the voltage pulse application is not performed is higher than when the voltage pulse application is performed if the first active element is provided by a P-channel transistor, and wherein voltage settings for the first wiring, for the second wiring including settings for the voltage pulse, and for the third wiring are so made that the first active element is turned on upon presence of the voltage pulse applied to the second wiring while the first active element is turned off upon absence of the voltage pulse applied to the second wiring if the predetermined electrode is supplied with a voltage which lies within a predetermined range set around a reference voltage given by the third wiring, and that the first active element is turned off regardless of the voltage pulse application to the second wiring if the predetermined electrode is supplied with a voltage which lies out of said predetermined range but lies within a different predetermined range.