CRYSTALLINE COLOR-CONVERSION DEVICE

摘要

According to an embodiment, a crystalline color-conversion device includes an electrically driven first light emitter, for example a blue or ultraviolet LED, for emitting light having a first energy in response to an electrical signal. An inorganic solid single-crystal direct-bandgap second light emitter having a bandgap of a second energy less than the first energy is provided in association with the first light emitter. The second light emitter is electrically isolated from, located in optical association with, and physically connected to the first light emitter so that in response to the electrical signal the first light emitter emits first light that is absorbed by the second light emitter and the second light emitter emits second light having a lower energy than the first energy.

主权项

1. A crystalline color-conversion device, comprising:
an electrically driven first light emitter for emitting first light having a first energy in response to an electrical signal; and an inorganic solid single-crystal direct-bandgap second light emitter having a bandgap of a second energy less than the first energy, wherein the second light emitter is electrically isolated from the first light emitter, is located in optical association with the first light emitter, and is located within 0 to 250 microns of the first light emitter so that in response to the electrical signal the first light emitter emits first light that is absorbed by the second light emitter and the second light emitter emits second light having a lower energy than the first energy.