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：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.

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：US20170219882A1

公开(公告)日：2017-08-03

申请号：US15417906

申请日：2017-01-27

Applicant: LG ELECTRONICS INC.

Inventor： Bohee KANG ,  Sohee AN ,  Jinsin PARK ,  Jongyoung SHIN

IPC: G02F1/1335

CPC classification number: G02F1/133605 ,  G02F1/133603 ,  G02F1/133608 ,  G02F1/133611

Abstract: A backlight unit and a display device including the same are disclosed. The backlight unit includes a frame including a bottom area and a sidewall area extended from the bottom area, at least one substrate positioned at a front surface of the frame, a plurality of light sources being mounted on the at least one substrate, a reflective sheet positioned at a front surface of the at least one substrate, and an optical sheet positioned at a front surface of the reflective sheet. The reflective sheet includes a first sheet area contacting the bottom area and including a plurality of lens holes, and a second sheet area spaced apart from the bottom area and including a dot area. The dot area includes a first dot area and a second dot area spaced apart from the first dot area.