公开(公告)号：US20210405449A1

公开(公告)日：2021-12-30

申请号：US17475151

申请日：2021-09-14

Applicant: LMS Co., Ltd.

Inventor： Jin Hwan KIM ,  Hyuck Yi KWON ,  Young Man KIM

IPC: G02F1/13357 ,  G02B5/02 ,  G02B5/04 ,  H01L33/50

Abstract: Disclosed is a backlight unit using a mini light-emitting diode (LED) or a micro LED as a light source according to various embodiments of the present invention. The backlight unit may comprise: a color conversion sheet for converting the color of light emitted from the mini LED or the micro LED; a first diffusion lens sheet disposed on one side of the color conversion sheet and having a plurality of first lenses having a triangular pyramid shape formed to be arranged in a first direction on one surface thereof; and a second diffusion lens sheet disposed on one side of the first diffusion lens sheet, and having a plurality of second lenses having a triangular pyramid shape formed to be arranged in a second direction on one surface thereof.