| 摘要 |
A light-emitting device includes: light-emitting chips each including light-emitting elements and memory elements corresponding to each other, each memory element memorizing a light-emitting element to light up, each light-emitting chip being capable of lighting up the light-emitting elements in parallel; a unit to transmit an enable signal in common to light-emitting chips belonging to each of M groups obtained by dividing the light-emitting chips, the enable signal enabling selection of light-emitting elements to light up; a unit to transmit a write signal in common to light-emitting chips belonging to each of N classes obtained by dividing the light-emitting chips, the write signal setting memory elements corresponding to the light-emitting elements to light up, to a memory state or not, in the light-emitting chips where the selection is enabled; and a unit to transmit light-up signals for lighting up to light-emitting elements corresponding to memory elements in the memory state. |
