Patent ID: 11934065
Assignee: AUO CORPORATION
Field: Optics (Instruments)
Classification: CPC G  H | IPC G

Claim 0:
1. A display device, comprising:
a substrate;
a first light emitting element and a second light emitting element, disposed on the substrate, wherein the first light emitting element emits a first light, the first light has a first wavelength range, the second light emitting element emits a second light, and the second light has a second wavelength range;
an optical film sheet, disposed above the first light emitting element and the second light emitting element, wherein the optical film sheet comprises a first zone and a second zone, the first zone comprises a first cholesteric liquid crystal, the first cholesteric liquid crystal reflects light in at least the first wavelength range, the second zone comprises a second cholesteric liquid crystal, and the second cholesteric liquid crystal reflect light in at least the second wavelength range, wherein:
when the first light emits to the first zone, a part of the first light is reflected by the first zone, and an another part of the first light passes through the first zone,
when the second light emits to the second zone, a part of the second light is reflected by the second zone, and an another part of the second light passes through the second.