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：USRE48207E1

公开(公告)日：2020-09-15

申请号：US15395223

申请日：2016-12-30

Applicant: LG ELECTRONICS INC.

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

IPC: F21V13/04 ,  G02B19/00 ,  G02F1/1335 ,  H01L33/58 ,  G02F1/13357

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.

公开(公告)号：US10698256B2

公开(公告)日：2020-06-30

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 ,  Yaeyoon Jeong ,  Bohee Kang ,  Manhyuck Han ,  Jiu Myeong

IPC: G02F1/1335 ,  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：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：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：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。

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：US10151448B2

公开(公告)日：2018-12-11

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

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：US09823507B2

公开(公告)日：2017-11-21

申请号：US14767852

申请日：2013-02-14

Applicant: LG ELECTRONICS INC.

Inventor： Sunki Chae ,  Jihee Park ,  Juyoung Joung ,  Kyungjoon Lee

IPC: G02F1/1335 ,  G09F13/04 ,  G09F13/14

CPC classification number: G02F1/133606 ,  G02F1/133603 ,  G02F1/133605 ,  G02F2001/133607 ,  G09F13/04 ,  G09F2013/0422 ,  G09F2013/147

Abstract: A display device, according to an embodiment of the present disclosure, includes a substrate, a light emitting unit comprising a light emitting element mounted on the substrate and a lens placed on the upper side of the light-emitting element, a reflective layer arranged on the upper surface of the substrate, an optical sheet arranged on the upper side of the reflective layer and disposed at a height spaced apart from the light emitting unit; and a display panel placed on the upper surface of the optical sheet, wherein a center portion of the upper surface of the lens is recessed at a predetermined depth and formed in the shape of a continuous straight line, and the upper surface thereof has an aspheric shape that is curved at a predetermined curvature from the center portion toward the edges, so as to have an anisotropic distribution of light.

公开(公告)号：US09222644B2

公开(公告)日：2015-12-29

申请号：US14603516

申请日：2015-01-23

Applicant: LG ELECTRONICS INC.

Inventor： Kyungjoon Lee ,  Woongjoon Hwang ,  Juyoung Joung

IPC: G09F13/04 ,  G09F13/08 ,  F21V5/04 ,  G02B19/00

CPC classification number: F21V5/04 ,  G02B6/0021 ,  G02B6/0031 ,  G02B6/0068 ,  G02B6/0073 ,  G02B19/0028 ,  G02B19/0047 ,  G02B19/0061 ,  G02B2207/113 ,  G02F1/133603 ,  G09F13/14 ,  H01L33/58

Abstract: The present invention provides an optical assembly, a backlight unit having the same, and a display apparatus thereof, and the optical assembly includes: a light emitting device; and a lens disposed above the light emitting device, and the lens has: a lower surface portion through which light emitted from the light emitting device travels inside; an upper surface portion that totally reflects at least some of the light traveling inside through the lower surface portion, downward to the side; and a side portion through which the light totally reflected from the upper surface portion is discharged to the outside.

Abstract translation: 本发明提供了一种光学组件，具有该组件的背光单元及其显示装置，并且该光学组件包括：发光装置; 以及设置在所述发光器件上方的透镜，并且所述透镜具有：从所述发光器件发射的光在其内部行进的下表面部分; 上表面部分，其全部反射通过下表面部分向内行进的至少一些光; 并且从上表面部分全反射的光被排出到外侧的侧部。