公开(公告)号：US20240361637A1

公开(公告)日：2024-10-31

申请号：US18614882

申请日：2024-03-25

Applicant: Sharp Display Technology Corporation

Inventor： Atsuyuki TANAKA

IPC: G02F1/1335

CPC classification number: G02F1/133614

Abstract: A light source includes a first wavelength conversion portion including a first green fluorescent material to wavelength-convert light emitted by a first light-emitting element to green light in a green wavelength region and a first red fluorescent material to wavelength-convert the light emitted by the first light-emitting element to red light in a red wavelength region, and a second wavelength conversion portion including a second green fluorescent material to wavelength-convert light emitted by the second light-emitting element to the green light and a second red fluorescent material to wavelength-convert the light emitted by the second light-emitting element to the red light. The first wavelength conversion portion and the second wavelength conversion portion differ from each other in either one or both of a quantity and a composition of the first green fluorescent material, the first red fluorescent material, the second green fluorescent material, and the second red fluorescent material.