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

Claim 0:
1. 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,
in a case where a channel length of the drive transistor is taken as L1, a channel length of the diode connection transistor is taken as L2, a ratio of a channel width W to a channel length L of the drive transistor is taken as (W/L)1, and a ratio of a channel width W to a channel length L of the diode connection transistor is taken as (W/L)2,
a relation of L1<L2, and
a relation of (W/L)1<(W/L)2 are satisfied, and

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