公开(公告)号：US20210132441A1

公开(公告)日：2021-05-06

申请号：US17121070

申请日：2020-12-14

Applicant: LG ELECTRONICS INC.

Inventor： Kyungjoon LEE ,  Uihyung LEE ,  Juyoung JOUNG ,  Wondo KEE ,  Minho KIM ,  Wongjoon HWANG ,  Jaeyoon JEONG ,  Bohee KANG ,  Manhyuck HAN ,  Jiu MYEONG

IPC: G02F1/13357

Abstract: Disclosed herein are a backlight unit and a display device using the same. In an embodiment, the backlight unit includes a substrate, at least one light source on the substrate, a lenses placed over the light source, a reflection sheet in which at least one through hole corresponding to the lens is formed, and a reflection ring comprising an opening portion corresponding to the at least one light source, and placed between the lens and the substrate. In accordance with an embodiment of the present invention, luminance uniformity of the backlight unit can be improved because the reflection ring surrounding the light source is included.

公开(公告)号：US20200319510A1

公开(公告)日：2020-10-08

申请号：US16904351

申请日：2020-06-17

Applicant: LG ELECTRONICS INC.

Inventor： Kyungjoon LEE ,  Uihyung LEE ,  Juyoung JOUNG ,  Wondo KEE ,  Minho KIM ,  Woongjoon HWANG ,  Jaeyoon JEONG ,  Bohee KANG ,  Manhyuck HAN ,  Jiu MYEONG

IPC: G02F1/13357

Abstract: Disclosed herein are a backlight unit and a display device using the same. In an embodiment, the backlight unit includes a substrate, at least one light source on the substrate, a lenses placed over the light source, a reflection sheet in which at least one through hole corresponding to the lens is formed, and a reflection ring comprising an opening portion corresponding to the at least one light source, and placed between the lens and the substrate. In accordance with an embodiment of the present invention, luminance uniformity of the backlight unit can be improved because the reflection ring surrounding the light source is included.

公开(公告)号：US20250123518A1

公开(公告)日：2025-04-17

申请号：US18894441

申请日：2024-09-24

Applicant: LG ELECTRONICS INC.

Inventor： Youngdae KIM ,  Jeongwoo CHOI ,  Jihee PARK ,  Jaeyoon JEONG ,  Sohee AN ,  Jeonggyu KIM ,  Nayeon JUNG ,  Seongjun KIM ,  Jinhwan KIM ,  Minyoung PARK

IPC: G02F1/13357 ,  G02F1/1335

Abstract: A display device may include a display panel; a frame; a light source located on a substrate; a lens including a body spaced apart from the substrate and covering the light source, and legs protruding from the body and coupled to the substrate; and a reflective sheet having a hole in which the lens is located and covering the substrate, wherein a boundary of the hole comprises: first and second straight sections opposite each other with respect to a center of the hole; first and second curved sections opposite each other with respect to the center of the hole and connecting the first and second straight sections; and an end of a protrusion protruding from the first straight section or the second straight section toward an inside of the hole, and wherein a portion of a rear surface of the body may overlap the protrusion in a forward-backward direction.

公开(公告)号：US20230341725A1

公开(公告)日：2023-10-26

申请号：US18215617

申请日：2023-06-28

Applicant: LG ELECTRONICS INC.

Inventor： Kyungjoon LEE ,  Uihyung LEE ,  Juyoung JOUNG ,  Wondo KEE ,  Minho KIM ,  Wongjoon HWANG ,  Jaeyoon JEONG ,  Bohee KANG ,  Manhyuck HAN ,  Jiu MYEONG

IPC: G02F1/13357 ,  F21V7/24 ,  F21V7/00 ,  F21V7/22 ,  G02F1/1335

CPC classification number: G02F1/133605 ,  G02F1/133603 ,  G02F1/133608 ,  F21V7/24 ,  F21V7/0058 ,  F21V7/22 ,  G02F1/133607

Abstract: Disclosed herein are a backlight unit and a display device using the same. In an embodiment, the backlight unit includes a substrate, at least one light source on the substrate, a lenses placed over the light source, a reflection sheet in which at least one through hole corresponding to the lens is formed, and a reflection ring comprising an opening portion corresponding to the at least one light source, and placed between the lens and the substrate. In accordance with an embodiment of the present invention, luminance uniformity of the backlight unit can be improved because the reflection ring surrounding the light source is included.

公开(公告)号：US20220197088A1

公开(公告)日：2022-06-23

申请号：US17692033

申请日：2022-03-10

Applicant: LG ELECTRONICS INC.

Inventor： Kyungjoon LEE ,  Uihyung LEE ,  Juyoung JOUNG ,  Wondo KEE ,  Minho KIM ,  Wongjoon HWANG ,  Jaeyoon JEONG ,  Bohee KANG ,  Manhyuck HAN ,  Jiu MYEONG

IPC: G02F1/13357

Abstract: Disclosed herein are a backlight unit and a display device using the same. In an embodiment, the backlight unit includes a substrate, at least one light source on the substrate, a lenses placed over the light source, a reflection sheet in which at least one through hole corresponding to the lens is formed, and a reflection ring comprising an opening portion corresponding to the at least one light source, and placed between the lens and the substrate. In accordance with an embodiment of the present invention, luminance uniformity of the backlight unit can be improved because the reflection ring surrounding the light source is included.