公开(公告)号：US09933657B2

公开(公告)日：2018-04-03

申请号：US15345202

申请日：2016-11-07

Applicant: LG ELECTRONICS INC.

Inventor： Sewon Oh ,  Eunseok Kim

IPC: G09F13/04 ,  G02F1/1335

CPC classification number: G02F1/133605 ,  G02F1/133603 ,  G02F1/133606 ,  G02F1/133608 ,  G02F1/133611

Abstract: A backlight unit including a frame including a bottom and a sidewall extending from the bottom; at least one substrate located on the frame, and a plurality of light sources mounted on the at least one substrate; and a reflecting sheet located on the at least one substrate. The reflecting sheet comprises a first sheet part located on the bottom, the first sheet part including a plurality of holes corresponding to the plurality of the light sources; and a second sheet part extended from the first sheet part, the second sheet part including a horizontal dot area located along a long side of the reflecting sheet and a vertical dot area located along a short side of the reflecting sheet, and at least one of the horizontal dot area and the vertical dot area comprising first areas and second areas. In addition, the first areas correspond to outermost holes among the plurality of holes, and the second areas are located between the first areas, the first areas and the second areas include a plurality of dot areas, each of the dot areas includes a plurality of dots, a density of dots included in one of the plurality of dot areas is different from a density of dots included in another of the plurality of dot areas in the first area, a density of dots included in one of the plurality of dot areas is different from a density of dots included in another of the plurality of dot areas in the second area, the first and second areas comprise first dot areas, the first dot areas are positioned at the same distance between a first distance and a second distance from a line, the line being an imaginary line connecting the outermost holes along at least one of the long side and the short side of the reflecting sheet, and a density of dots included in the first dot area of the first area is different from a density of dots included in the first dot area of the second area.

公开(公告)号：US09740047B2

公开(公告)日：2017-08-22

申请号：US14928621

申请日：2015-10-30

Applicant: LG ELECTRONICS INC.

Inventor： Sewon Oh ,  Eunseok Kim

IPC: G02F1/1335 ,  F21V7/04

CPC classification number: G02F1/133603 ,  F21V7/04 ,  G02F1/133605 ,  G02F1/133606 ,  G02F1/133608 ,  G02F1/133611

Abstract: A backlight unit is discussed, which includes a frame including a bottom and a sidewall extending from the bottom; at least one substrate located on the frame, and a plurality of light sources mounted on the at least one substrate; and a reflecting sheet located on the at least one substrate, wherein the reflecting sheet includes: a first sheet part located on the bottom, the first sheet part including a plurality of holes corresponding to the plurality of the light sources, and a plurality of first dots; and a second sheet part extended from the first sheet, the second sheet part including a plurality of second dots, wherein the plurality of first dots are positioned adjacent to at least one of the plurality of holes.

公开(公告)号：US12215856B2

公开(公告)日：2025-02-04

申请号：US18650953

申请日：2024-04-30

Applicant: LG ELECTRONICS INC.

Inventor： Sewon Oh ,  Eunseok Kim

IPC: F21V7/00 ,  F21Y105/10 ,  F21Y115/10 ,  G02F1/1335 ,  G02F1/13357

Abstract: A display device including a display panel, a frame at a rear of the display panel, a light source on a substrate between the display panel and the frame, the light source providing light for the display panel, and a reflecting sheet between the display panel and the frame, the reflecting sheet having a rectangular shape with a first long side, a second long side opposite the first long side, a first short side adjacent to the first long side and the second long side, and a second short side opposite the first short side, wherein the reflecting sheet includes a first sheet part forming a central area of the reflecting sheet, a second sheet part forming a side area of the reflecting sheet around the first sheet part, the second sheet part including dot areas, and a hole next to a border line between the first sheet part and the second sheet part, wherein at least one of the dot areas in the second sheet part is formed along the first short side or the second short side, wherein the at least one of the dot areas including a first dot area next to the hole in a parallel direction of the first long side or the second long side and a second dot area next to the first dot area in a parallel direction of the first short side or the second short side, and wherein a density of dots in the first dot area is different from a density of dots in the second dot area.

公开(公告)号：USRE50191E1

公开(公告)日：2024-10-29

申请号：US16787653

申请日：2020-02-11

Applicant: LG ELECTRONICS INC.

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

IPC: G02F1/1333 ,  G02B19/00 ,  G02F1/1335 ,  G02F1/13357

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

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：US12013611B2

公开(公告)日：2024-06-18

申请号：US18310756

申请日：2023-05-02

Applicant: LG ELECTRONICS INC.

Inventor： Sewon Oh ,  Eunseok Kim

IPC: G02F1/13357 ,  F21V7/04

CPC classification number: G02F1/133603 ,  F21V7/04 ,  G02F1/133605 ,  G02F1/133606 ,  G02F1/133608 ,  G02F1/133611

Abstract: A display device including a display panel; a frame at a rear of the display panel; a substrate disposed on the frame between the display panel and the frame; a plurality of light sources mounted on the substrate, the light sources providing light for the display panel; a plurality of lenses respectively mounted on the plurality of light sources; a connector mounted on the substrate; and a reflecting sheet disposed on the substrate and the frame and including a plurality of holes into which the plurality of lenses is respectively inserted, wherein the reflecting sheet includes a cutting portion aligned with the connector such that the connector is disposed under the cutting portion of the reflecting sheet.

公开(公告)号：US10768484B2

公开(公告)日：2020-09-08

申请号：US16441910

申请日：2019-06-14

Applicant: LG ELECTRONICS INC.

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

IPC: G02F1/13357 ,  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：US10203087B2

公开(公告)日：2019-02-12

申请号：US15874682

申请日：2018-01-18

Applicant: LG ELECTRONICS INC.

Inventor： Sewon Oh ,  Eunseok Kim

IPC: G09F13/04 ,  G09F13/08 ,  F21V7/00 ,  G02F1/1335 ,  F21Y105/10 ,  F21Y115/10

Abstract: A display device including a display panel; a frame at a rear of the display panel, the frame including a bottom and a sidewall extending from the bottom; a substrate on the frame; a plurality of light sources mounted on the substrate; and a reflecting sheet on the substrate. The reflecting sheet includes a first sheet part on the bottom and having a rectangular shape with a first long side, a second long side opposite the first long side, a first short side adjacent to the first long side and the second long side, and a second short side opposite the first short side, the first sheet part comprising a plurality of holes corresponding to the plurality of light sources; a second sheet part extended from the first sheet part toward the side wall of the frame; and a plurality of dots on the second sheet part, wherein the plurality of dots reduces a reflectance of light, and wherein a size of the plurality of dots increases from a corner of the second sheet part in a first direction parallel to the long sides and a second direction parallel to the short sides.

公开(公告)号：US09910316B2

公开(公告)日：2018-03-06

申请号：US15348622

申请日：2016-11-10

Applicant: LG ELECTRONICS INC.

Inventor： Sewon Oh ,  Eunseok Kim

IPC: G02F1/1335 ,  F21V7/04

CPC classification number: G02F1/133603 ,  F21V7/04 ,  G02F1/133605 ,  G02F1/133606 ,  G02F1/133608 ,  G02F1/133611

Abstract: A backlight unit including a frame including a bottom and a sidewall extending from the bottom; at least one substrate located on the frame, and a plurality of light sources mounted on the at least one substrate; and a reflecting sheet located on the at least one substrate, further the reflecting sheet includes a first sheet part located on the bottom, the first sheet part including a plurality of holes corresponding to the plurality of the light sources; and a second sheet part extended from the first sheet part, the second sheet part including a horizontal dot area located along a long side of the reflecting sheet and a vertical dot area located along a short side of the reflecting sheet, and at least one of the horizontal dot area and the vertical dot area comprising first areas and second areas, also the first areas correspond to outermost holes among the plurality of holes, and the second areas are located between the first areas, in addition the first areas and the second areas include a plurality of dot areas, further each of the dot areas includes a plurality of dots, also a size of dots included in one of the plurality of dot areas is different from a size of dots included in another of the plurality of dot areas in the first area, in addition a size of dots included in one of the plurality of dot areas is different from a size of dots included in another of the plurality of dot areas in the second area, further the first and second areas comprise first dot areas, the first dot areas are positioned at a same distance between a first distance and a second distance from a line, the line being an imaginary line connecting the outermost holes along at least one of the long side and the short side of the reflecting sheet, and also a size of dots included in the first dot area of the first area is greater than a size of dots included in the first dot area of the second area.

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：US20170045667A1

公开(公告)日：2017-02-16

申请号：US15177742

申请日：2016-06-09

Applicant: LG ELECTRONICS INC.

Inventor： Dohan Park ,  Jaehyeok Kim ,  Eunseok Kim ,  Dawoon Jung

IPC: F21V8/00

CPC classification number: G02B6/0031 ,  G02B6/0068 ,  G02B6/009

Abstract: Embodiments provide a light source module including a circuit board, at least two point light sources, which are electrically connected to the circuit board and are arranged on an upper surface of the circuit board in a longitudinal direction of the circuit board, and a light guide for guiding light, which is introduced from the point light sources, in an upward direction of the circuit board, wherein the light guide includes a first reflective wall, disposed on the upper surface of the circuit board, and a second reflective wall, disposed on the upper surface of the circuit board, such that a space, in which the point light sources are disposed, is defined between the first reflective wall and the second reflective wall. Embodiments also provide a planar light source device including the light source module.

Abstract translation: 实施例提供了一种光源模块，包括电路板，至少两个点光源，其电连接到电路板，并且沿着电路板的纵向设置在电路板的上表面上，并且光导 用于引导从所述点光源引入的光沿所述电路板的向上方向，其中所述光导包括布置在所述电路板的上表面上的第一反射壁和设置在所述电路板的上表面上的第二反射壁 电路板的上表面，使得其中设置点光源的空间被限定在第一反射壁和第二反射壁之间。 实施例还提供一种包括光源模块的平面光源装置。