LIGHT EMITTING DEVICE, ELECTRONIC APPARATUS, AND DESIGN METHOD OF SEMICONDUCTOR DEVICE

摘要

A light emitting device including a drive transistor that generates a drive current of a current amount corresponding to a gate-source voltage, a light emitting element that emits light at a luminance corresponding to the current amount of the drive current, and a control unit that controls the gate-source voltage according to a specified gradation is configured as follows. The gate-source voltage is a voltage of a first voltage value or more and a second voltage value or less. The first voltage value and the second voltage value are set such that a change minimum voltage value is a gate-source voltage when a change rate of the drive current with respect to an environmental temperature change is a predetermined value or less and is included between the first voltage value and the second voltage value.

主权项

1. A light emitting device comprising:
a drive transistor that generates a drive current of a current amount corresponding to a gate-source voltage; a light emitting element that emits light at a luminance corresponding to the current amount of the drive current; and a control unit that controls the gate-source voltage according to a specified gradation, wherein the gate-source voltage is a first voltage value or more at which the light emitting element emits light at a luminance corresponding to a first gradation and a second voltage value or less at which the light emitting element emits light at a luminance corresponding to a second gradation, and wherein the first voltage value and the second voltage value are set such that a third voltage value, which is a gate-source voltage when a change rate of the drive current with respect to an environmental temperature change is a predetermined value or less, is included between the first voltage value and the second voltage value.