Patent ID: 11940637
Assignee: IUCF-HYU (INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY)
Field: Optics (Instruments)
Classification: CPC G  H  B | IPC G  H

Claim 13:
14. A display device comprising:
a light source; and
a color transformation filter configured to output color light corresponding to each of subpixels based on light radiated from the light source,
wherein the color transformation filter comprises:
a plurality of nanostructures included in the subpixels and spaced apart from each other, the plurality of nanostructures having a first refractive index;
a low refractive index layer provided adjacent to the plurality of nanostructures, the low refractive index layer having a second refractive index less than the first refractive index; and
a color transformation element included in the low refractive index layer,
wherein lower surfaces of the plurality of nanostructures and a lower surface of the low refractive index layer are located on a same plane.