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。

公开(公告)号：US11543690B2

公开(公告)日：2023-01-03

申请号：US17079378

申请日：2020-10-23

Applicant: LG ELECTRONICS INC.

Inventor： Sangmin Baek ,  Kitae Keum ,  Juyoung Joung

IPC: G02F1/1333 ,  G02F1/1335

Abstract: A display device is disclosed. The display device includes a display panel, a frame located at the rear of the display panel, an optical plate located between the frame and the display panel, a guide panel coupled to the frame, the guide panel being configured to support the optical plate, the guide panel being configured to provide a space between the optical plate and the frame, and a light source and a substrate configured to provide light to the optical plate in the space, wherein the display panel includes an active area configured to display an image and an inactive area configured not to display an image, the display panel is coupled to the optical plate via a first adhesive member, and the optical plate is fixed to the guide panel via a second adhesive member.

公开(公告)号：US20220066256A1

公开(公告)日：2022-03-03

申请号：US17214006

申请日：2021-03-26

Applicant: LG ELECTRONICS INC.

Inventor： Sangmin Baek ,  Juyoung Joung ,  Hyuncheol Cho ,  Seungse Kim ,  Minho Kim

IPC: G02F1/1333 ,  G02F1/13357 ,  F21V8/00 ,  G02F1/1345

Abstract: A display device is disclosed. The display device includes: a display panel; a frame disposed at a rear of the display panel; a light source disposed between the display panel and the frame, and configured to provide light to the display panel; a guide panel disposed adjacent to an edge of the display panel and coupled to the frame, and configured to support the display panel; and a front sheet including a light transmitting portion covering a front surface of the display panel, and a light shielding portion extending from the light transmitting portion and covering the guide panel, wherein the guide panel includes: an inner part disposed between the frame and the display panel and configured to support a rear surface of the display panel adjacent to the edge of the display panel; and an outer part disposed toward an outer side of the frame and configured to cover a side surface of the edge of the display panel.

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：US10324334B2

公开(公告)日：2019-06-18

申请号：US15407611

申请日：2017-01-17

Applicant: LG ELECTRONICS INC.

Inventor： Jeonggyu Kim ,  Jongho Han ,  Eunseok Kim ,  Uihyung Lee ,  Juyoung Joung ,  Jinsin Park

IPC: G02F1/1335

Abstract: A backlight unit including a frame having a bottom area and a sidewall area extended from the bottom area; a single substrate located in on the bottom area of the frame, a plurality of optical assemblies being mounted on the single substrate; a reflection sheet located the frame and configured to reflect light emitted by the optical assemblies; and an optical sheet located over the reflection sheet. Further, the reflection sheet a first sheet area corresponding to the bottom area of the frame; a second sheet area corresponding to the sidewall area of the frame; and a cut portion cut from the first sheet at one portion abutting on one side of the single substrate.

公开(公告)号：US10254585B2

公开(公告)日：2019-04-09

申请号：US15416089

申请日：2017-01-26

Applicant: LG ELECTRONICS INC.

Inventor： Jongyoung Shin ,  Uihyung Lee ,  Eunseok Kim ,  Juyoung Joung

IPC: G02F1/1335

Abstract: A backlight unit and a display device including the backlight unit are disclosed. The backlight unit includes a frame including a bottom area and a side area extended from the bottom area, at least one substrate positioned at a front surface of the frame and mounting a plurality of light sources, a reflective sheet positioned at a front surface of the at least one substrate and including a strip area in at least a portion of the reflective sheet, and an optical sheet positioned at a front surface of the reflective sheet. A reflectance of the at least the portion of the reflective sheet is different from a reflectance of at least another portion of the reflective sheet.

公开(公告)号：US10210814B2

公开(公告)日：2019-02-19

申请号：US15078530

申请日：2016-03-23

Applicant: LG ELECTRONICS INC.

Inventor： Sangmin Baek ,  Hyongil Kil ,  Jaehyung Jeon ,  Juyoung Joung

IPC: G09G3/34 ,  G02F1/1335 ,  G02F1/1333

Abstract: A display device is disclosed. The display device includes a display panel, a frame positioned in the rear of the display panel, a backlight unit positioned between the display panel and the frame and providing light for the display panel, and a heat dissipation protrusion formed on the frame and contacted with the backlight unit.