Patent ID: 11915647
Assignee: SHARP KABUSHIKI KAISHA
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 6:
7. A display device, comprising:
a display element configured to emit light by a current flowing through the display element;
a capacitor configured to hold a data voltage;
a drive transistor with a data gate connected to one electrode of the capacitor; and
a diode connection transistor connected between a source of the drive transistor and the display element, wherein
a source of the diode connection transistor is connected to a back gate of the drive transistor, and
in a case where a channel capacity of the drive transistor is taken as (Cox)1, a channel capacity of the diode connection transistor is taken as (Cox)2, (channel capacity·channel width/channel length) of the drive transistor is taken as (Cox·W/L)1, and (channel capacity·channel width/channel length) of the diode connection transistor is taken as (Cox·W/L)2,
a relation of (Cox)1>(Cox)2, and
a relation of (Cox·W/L)1<(Cox·W/L)2 are satisfied, and

a back gate of the diode connection transistor is connected to the source of the diode connection transistor.