Light-emitting device, electronic device, and lighting device

摘要

A light energy reuse type light-emitting device with low power consumption is provided by converting light from a light-emitting device into electric power efficiently for reuse. Also, a light energy reuse type light-emitting device with high yield is provided. A light-blocking film of the light-emitting device is replaced to a photoelectric conversion element, so that light is converted into electric power. That is, conventionally, light is not emitted in a portion of a light-blocking film. In the disclosed invention, light which is not emitted can be converted into electric power by a photoelectric conversion element, and can be reused. Therefore, a light-emitting device with low power consumption is realized.

主权项

1. An electronic device comprising:
a light-emission control circuit includes, a first converter, a switch and a power storage portion; a light-emitting element electrically connected to the light-emission control circuit; a photoelectric conversion element formed over a substrate; a second converter electrically connected to the photoelectric conversion element, and wherein the light-emitting element is formed over the substrate; wherein the photoelectric conversion element absorbs a light energy emitted from the light-emitting element.