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.

公开(公告)号：US20180080632A1

公开(公告)日：2018-03-22

申请号：US15823111

申请日：2017-11-27

Applicant: LG ELECTRONICS INC.

Inventor： Kyungjoon LEE ,  Wondo Kee ,  Jihee Park ,  Woongjoon Hwang ,  Juyoung Joung

IPC: F21V13/04 ,  G02F1/1335 ,  F21V5/00 ,  F21K9/62

CPC classification number: F21V13/04 ,  F21K9/62 ,  F21V5/005 ,  G02F1/133603 ,  G02F1/133605 ,  G02F1/133606 ,  G02F2001/133607

Abstract: A display apparatus according to an embodiment of the present disclosure comprises: a substrate; a light-emitting unit including a light emitting element mounted on the substrate and a lens placed above the light-emitting element; a reflective layer placed on the upper surface of the substrate; an optical sheet placed above the reflective layer and placed at a height at which the optical sheet is spaced from the light-emitting unit; and a display panel placed on the upper surface of the optical sheet, wherein the lens has a cutout portion formed therein by depressing a part of the side surface thereof toward the center thereof, thereby providing an anisotropic light distribution.

公开(公告)号：US09891471B2

公开(公告)日：2018-02-13

申请号：US15174437

申请日：2016-06-06

Applicant: LG ELECTRONICS INC.

Inventor： Jaehyeok Kim ,  Eunseok Kim ,  Dohan Park ,  Dawoon Jung ,  Wondo Kee ,  Minho Kim ,  Jaehyung Jeon

IPC: G02F1/1333 ,  G02F1/1335 ,  G02B19/00

CPC classification number: G02F1/133606 ,  G02B19/0028 ,  G02B19/0061 ,  G02F1/133603 ,  G02F1/133605 ,  G02F2001/133607

Abstract: A display device is provided. The display device includes: a substrate; and at least one light assembly separately located on the substrate, wherein the light assembly includes: a light source; and a lens configured to shield an upper surface and a side surface of the light source, wherein the lens includes: a refraction portion separately located on the upper surface of the light source; and a reflection portion separately located at the side surface of the light source. Thereby, the lens includes a reflection portion located at a side surface of the light source, thereby improving light efficiency of a backlight unit.

公开(公告)号：US09851495B2

公开(公告)日：2017-12-26

申请号：US14980734

申请日：2015-12-28

Applicant: LG ELECTRONICS INC.

Inventor： Jaehyeok Kim ,  Wondo Kee ,  Woongjoon Hwang ,  Jeoungoun Lee ,  Dohan Park

IPC: F21V8/00 ,  G02F1/1333 ,  G02F1/1335

CPC classification number: G02B6/0088 ,  G02B6/0055 ,  G02B6/0083 ,  G02B6/0085 ,  G02B6/009 ,  G02F1/133308 ,  G02F1/133608 ,  G02F1/133615 ,  G02F2001/133314

Abstract: A backlight unit and a display device including the same are provided. The display device includes: a bottom cover; a backlight unit in which a light assembly is disposed in at least one corner area of the bottom cover; and a light arriving portion formed by bending at least one corner area of the bottom cover, wherein the backlight unit includes: a substrate coupled to the light arriving portion and in which a first surface in which the light assembly is disposed and a second surface bent from the first surface are provided, and at the first and second surfaces, a plurality of leads connected to the light assembly are disposed.

公开(公告)号：US09829180B2

公开(公告)日：2017-11-28

申请号：US14767829

申请日：2013-02-14

Applicant: LG ELECTRONICS INC.

Inventor： Kyungjoon Lee ,  Wondo Kee ,  Jihee Park ,  Woongjoon Hwang ,  Juyoung Joung

IPC: G09F13/04 ,  F21V13/04 ,  G02F1/1335 ,  F21V5/00 ,  F21K9/62

CPC classification number: F21V13/04 ,  F21K9/62 ,  F21V5/005 ,  G02F1/133603 ,  G02F1/133605 ,  G02F1/133606 ,  G02F2001/133607

Abstract: A display apparatus according to an embodiment of the present disclosure comprises: a substrate; a light-emitting unit including a light emitting element mounted on the substrate and a lens placed above the light-emitting element; a reflective layer placed on the upper surface of the substrate; an optical sheet placed above the reflective layer and placed at a height at which the optical sheet is spaced from the light-emitting unit; and a display panel placed on the upper surface of the optical sheet, wherein the lens has a cutout portion formed therein by depressing a part of the side surface thereof toward the center thereof, thereby providing an anisotropic light distribution.

公开(公告)号：US20160147115A1

公开(公告)日：2016-05-26

申请号：US14932412

申请日：2015-11-04

Applicant: LG ELECTRONICS INC

Inventor： Kyungjoon LEE ,  Uihyung Lee ,  Juyoung Joung ,  Wondo Kee ,  Minho Kim ,  Woongjoon Hwang ,  Jaeyoon Jeong ,  Bohee Kang ,  Manhyuck Han ,  Jiu Myeoung

IPC: 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.

Abstract translation: 本文公开了背光单元和使用其的显示装置。 在一个实施例中，背光单元包括衬底，衬底上的至少一个光源，放置在光源上的透镜，其中形成有与透镜相对应的至少一个通孔的反射片和反射环，反射环包括 对应于所述至少一个光源的开口部分，并且放置在所述透镜和所述基板之间。 根据本发明的实施例，由于包括光源的反射环，所以能够提高背光单元的亮度均匀性。

公开(公告)号：US09297519B2

公开(公告)日：2016-03-29

申请号：US14013427

申请日：2013-08-29

Applicant: LG ELECTRONICS INC.

Inventor： Kyungjoon Lee ,  Uihyung Lee ,  Juyoung Joung ,  Wondo Kee

IPC: F21V13/04 ,  G02B19/00 ,  G02F1/1335 ,  H01L33/58

CPC classification number: F21V13/04 ,  G02B19/0028 ,  G02B19/0061 ,  G02B19/0071 ,  G02F1/133603 ,  G02F1/133606 ,  G02F2001/133607 ,  H01L33/58

Abstract: Provided is a display apparatus. The display apparatus may include a display panel and a backlight provided adjacent the display panel. The backlight may include an optical sheet provided adjacent the display panel, a reflector provided a prescribed distance from the optical sheet, at least one light emitting device provided adjacent the reflector, and a lens provided over a corresponding the light emitting device. The lens may include a lower recess formed on a bottom surface of the lens and provided a prescribed distance over the light emitting device, and an upper recess formed on a top surface of the lens and provided to vertically overlap the bottom recess. The lower recess may include an upper surface that extends from the side surface and having a prescribed shape and curvature. The upper recess may also include a lower surface having a prescribed shape and curvature.

Abstract translation: 提供了一种显示装置。 显示装置可以包括显示面板和邻近显示面板设置的背光。 背光源可以包括邻近显示面板设置的光学片，与光学片设置规定距离的反射器，与反射器相邻设置的至少一个发光器件和设置在对应的发光器件上的透镜。 透镜可以包括形成在透镜的底表面上并在发光器件上设置规定距离的下凹部，以及形成在透镜的顶表面上并且设置成垂直重叠底凹部的上凹部。 下凹部可以包括从侧面延伸并具有规定形状和曲率的上表面。 上凹部还可以包括具有规定形状和曲率的下表面。