Patent ID: 7960918

Claim:
An electronic device comprising: a light emitting section that emits light by utilizing recombination of electrons and holes; and a driving section that inputs to the light emitting section a pulse-shaped driving signal having a duty ratio higher than or equal to 0.7 and lower than 1.0 and thereby causes the light emitting section to emit light intermittently, wherein when an electron density is denoted by n, a hole density is denoted by p, a thermal velocity of electrons is denoted by v th:n , a thermal velocity of holes is denoted by v th:p , an electron capture cross section of a defect level present in the light emitting section is denoted by σ n , a hole capture cross section of a defect level present in the light emitting section is denoted by σ p , and a pulse width of the driving signal is denoted by W, the driving section inputs to the light emitting section the driving signal having a pulse width W that satisfies W< 1/{ n·v th:n ·σ n ·p·v th:p ·σ p /( n·v th:n ·σ n +p·v th:p ·σ p )}.