公开(公告)号：US10914983B2

公开(公告)日：2021-02-09

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 ,  Wongjoon Hwang ,  Jaeyoon Jeong ,  Bohee Kang ,  Manhyuck Han ,  Jiu Myeong

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

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：US11709395B2

公开(公告)日：2023-07-25

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 ,  F21V7/00 ,  F21V7/24 ,  F21V7/22 ,  G02F1/1335

CPC classification number: G02F1/133605 ,  G02F1/133603 ,  G02F1/133608 ,  F21V7/0058 ,  F21V7/22 ,  F21V7/24 ,  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：US11327362B2

公开(公告)日：2022-05-10

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 ,  F21V7/00 ,  F21V7/24 ,  F21V7/22 ,  G02F1/1335

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.