公开(公告)号：US20210397048A1

公开(公告)日：2021-12-23

申请号：US16644512

申请日：2018-09-05

Applicant: Enplas Corporation

Inventor： Toshihiko MOCHIDA ,  Hiroaki OKUYAMA

IPC: G02F1/13357 ,  G02B3/04

Abstract: This light emitting device includes a light emitting element and a light flux controlling member. The light flux controlling member includes an incident surface, an emission surface, a back surface, a protruding portion and a scattering portion. In a cross section including a central axis, an angle formed by two beams, which are emitted from the light emitting device and have a maximum luminous intensity, is 150° or more. In a cross section including a central axis, predetermined light is made incident at an incident angle of 60° and an average angle, which is formed by, among the light reflected by the scattering portion, a light ray having a maximum light amount and a light ray having a light amount of 50% of the maximum light amount, is 5° or more.

公开(公告)号：US20230272900A1

公开(公告)日：2023-08-31

申请号：US18151520

申请日：2023-01-09

Applicant: ENPLAS CORPORATION

Inventor： Hiroaki OKUYAMA

IPC: F21V7/00 ,  F21V3/00 ,  F21V7/24

CPC classification number: F21V7/0091 ,  F21V3/00 ,  F21V7/24 ,  F21Y2105/16

Abstract: Embodiments of the application provide a light emitting device, a backlight module and a display panel. The light emitting device comprises: a substrate; a plurality of light emitters mounted on the substrate; and a light-transmissive resin on each of the light emitters, wherein the resin is in close contact with the light emitter and a part of the substrate, a surface of the light-transmissive resin away from the light emitter and the substrate forms an exit surface, the center of the light emitter and the center of the exit surface are located in a first optical axis, a region of the exit surface near the first optical axis is recessed toward the light emitter to form a concave surface, which is configured to totally reflect part of light emitted from the center of the light emitter and transmit part of light emitted from the edge of the light emitter.

公开(公告)号：US20240003519A1

公开(公告)日：2024-01-04

申请号：US18364238

申请日：2023-08-02

Applicant: ENPLAS CORPORATION

Inventor： Hiroaki OKUYAMA

IPC: F21V7/00 ,  F21V3/00 ,  F21V7/24

CPC classification number: F21V7/0091 ,  F21Y2115/10 ,  F21V7/24 ,  F21V3/00

Abstract: Embodiments of the application provide a light emitting device, a backlight module and a display panel. The light emitting device comprises: a substrate; a plurality of light emitters mounted on the substrate; and a light-transmissive resin on each of the light emitters, wherein the resin is in close contact with the light emitter and a part of the substrate, a surface of the light-transmissive resin away from the light emitter and the substrate forms an exit surface, the center of the light emitter and the center of the exit surface are located in a first optical axis, a region of the exit surface near the first optical axis is recessed toward the light emitter to form a concave surface, which is configured to totally reflect part of light emitted from the center of the light emitter and transmit part of light emitted from the edge of the light emitter.