公开(公告)号：US20220197088A1

公开(公告)日：2022-06-23

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

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：US20210074693A1

公开(公告)日：2021-03-11

申请号：US17044307

申请日：2019-01-31

Applicant: LG ELECTRONICS INC.

Inventor： Sujin SIM ,  Minho KIM ,  Uihyung LEE ,  Yongmin JUNG ,  Juyoung JOUNG

IPC: H01L25/13 ,  F21V7/00 ,  H01L33/58

Abstract: The present embodiment comprises: a plurality of light-emitting units; and a reflector including reflector units having spaces formed to receive the plurality of light-emitting units, respectively. Each of the plurality of light-emitting units includes an LED package mounted on a substrate and a light diffusion layer having a groove portion formed on a surface opposite to the substrate in the LED package, wherein the outer circumference of the light diffusion layer faces the inner surface of a reflector unit. In the reflector, the plurality of reflector units are Integrally formed, the spaces expand along a direction extending away from the substrate, and a wall forming each of the spaces surrounds the outer circumference of each of the LED package and the light diffusion layer.

公开(公告)号：US20170219881A1

公开(公告)日：2017-08-03

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

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

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：US20170212385A1

公开(公告)日：2017-07-27

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

CPC classification number: G02F1/133608 ,  G02F1/133603 ,  G02F1/133605 ,  G02F1/133606 ,  G02F1/133611 ,  G02F2001/133607 ,  G02F2201/465

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.