公开(公告)号：US10030845B2

公开(公告)日：2018-07-24

申请号：US14929828

申请日：2015-11-02

Applicant: LG ELECTRONICS INC.

Inventor： Sewon Oh ,  Eunseok Kim

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

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 mount 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; a second sheet part extended from the first sheet; and a third sheet part extended from the second sheet part and located on the sidewall; wherein the second sheet part comprises a plurality of dot areas positioned sequentially in a direction from the first sheet part to the third sheet part and the plurality of dot areas include a first dot area and a second dot area, the first dot area including a plurality of dots having the same size and the second dot area including a plurality of dots having the same size, and wherein a size of the plurality of dots in the first dot area is different from a size of the plurality of dots in the second dot area.

公开(公告)号：US11566776B2

公开(公告)日：2023-01-31

申请号：US17108206

申请日：2020-12-01

Applicant: LG ELECTRONICS INC.

Inventor： Sewon Oh ,  Eunseok Kim

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

Abstract: A display device includes 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 light source mounted on the substrate; a lens mounted on the light source in which the lens includes an upper surface, a lower surface, and a side surface connected with the upper surface and the lower surface; a reflecting layer between the substrate and the lens; and a plurality of dots formed on a top surface of the reflecting layer. Further, the lower surface of the lens includes a groove in which the light source is inserted, and the plurality of dots is arranged around the light source and only in an area under the lens between the side surface and the groove.

公开(公告)号：US10768479B2

公开(公告)日：2020-09-08

申请号：US16502885

申请日：2019-07-03

Applicant: LG ELECTRONICS INC.

Inventor： Sewon Oh ,  Eunseok Kim

IPC: G02F1/1335 ,  G02F1/13357 ,  F21V7/04

Abstract: A display device includes a display panel; a light source; a frame at a rear of 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. Further, the reflecting sheet includes a first horizontal area along the first long side, and a first vertical area along the first short side. In addition, at least one of the first horizontal area and the first vertical area includes a first area including a plurality of first dots, a second area including a plurality of second dots and a third area including a plurality of third dots.

公开(公告)号：US10408422B2

公开(公告)日：2019-09-10

申请号：US16244762

申请日：2019-01-10

Applicant: LG ELECTRONICS INC.

Inventor： Sewon Oh ,  Eunseok Kim

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

Abstract: A display device includes a display panel; a frame at a rear of the display panel; a plurality of substrates on the frame; a plurality of light sources disposed on the plurality of substrates, and including a first light source disposed at a first corner portion of the frame, a second light source disposed at a second corner portion of the frame, a third light source disposed at a third corner portion of the frame, and a fourth light source disposed at a fourth corner portion of the frame; a reflection layer including a first opening where the first light source is located, a second opening where the second light source is located, a third opening where the third light source is located, and a fourth opening where the fourth light source is located; a first absorber disposed on the reflection layer at a first area near the first opening and configured to absorb light emitted by the first light source; a second absorber disposed on the reflection layer at a second area near the second opening and configured to absorb light emitted by the second light source; a third absorber disposed on the reflection layer at a third area near the third opening and configured to absorb light emitted by the third light source; and a fourth absorber disposed on the reflection layer at a fourth area near the fourth opening and configured to absorb light emitted by the fourth light source.

公开(公告)号：US10365513B2

公开(公告)日：2019-07-30

申请号：US16245692

申请日：2019-01-11

Applicant: LG ELECTRONICS INC.

Inventor： Sewon Oh ,  Eunseok Kim

IPC: G02F1/1335 ,  F21V7/04

Abstract: A display device includes a display panel; a light source; a frame at a rear of 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. Further, the reflecting sheet includes a first horizontal area along the first long side, and a first vertical area along the first short side. In addition, at least one of the first horizontal area and the first vertical area includes a first area including a plurality of first dots, a second area including a plurality of second dots and a third area including a plurality of third dots.

公开(公告)号：US11860474B2

公开(公告)日：2024-01-02

申请号：US18079435

申请日：2022-12-12

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 plurality of light source assemblies between the display panel and the frame, the light source assemblies providing light for the display panel; and a reflecting sheet between the display panel and the frame and including 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 including vertical dot areas formed on first and second vertical sides of the reflecting sheet and horizontal dot areas formed on first and second horizontal sides of the reflecting sheet; and a plurality of partial ring-shaped dot areas formed on the first sheet part partially around corresponding light source assemblies without completely surrounding the corresponding light source assemblies.

公开(公告)号：US11287691B2

公开(公告)日：2022-03-29

申请号：US17066613

申请日：2020-10-09

Applicant: LG ELECTRONICS INC.

Inventor： Sewon Oh ,  Eunseok Kim

IPC: F21V7/04 ,  G02F1/13357

Abstract: A display device includes a display panel; a frame at a rear of the display panel; a light source 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.

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.