公开(公告)号：US10139546B2

公开(公告)日：2018-11-27

申请号：US15408327

申请日：2017-01-17

Applicant: LG ELECTRONICS INC.

Inventor： Geunhwan Kim ,  Sujin Sim ,  Woosuk Lee ,  Juyoung Joung ,  Minho Kim

IPC: F21V8/00

Abstract: A display device is disclosed. The display device includes a display panel, a light guide plate located in a rear of the display panel, a light assembly located on a side of the light guide plate and providing the light guide plate with light, and a light absorbing portion formed on a back surface or a front surface of the light guide plate and absorbing the light provided by the light assembly in a predetermined wavelength range.

公开(公告)号：US09746709B2

公开(公告)日：2017-08-29

申请号：US14819842

申请日：2015-08-06

Applicant: LG ELECTRONICS INC.

Inventor： Geunhwan Kim ,  Jongho Han ,  Juyoung Joung ,  Wondo Kee ,  Minho Kim

IPC: G02F1/1335 ,  F21V8/00

CPC classification number: G02F1/133553 ,  G02B6/0021 ,  G02B6/0036 ,  G02B6/0046 ,  G02B6/0058 ,  G02B6/0096 ,  G02F1/133526 ,  G02F1/133615

Abstract: Provided are a backlight unit and a display apparatus including the same. An optical lens of an optical unit has a shape asymmetrical with respect to a plane that bisectionally divides a center of an optical package. A plurality of reflectors each of which has an embossed or engraved shape are disposed on a top surface of the reflection sheet.

公开(公告)号：US11747540B2

公开(公告)日：2023-09-05

申请号：US17776216

申请日：2019-11-12

Applicant: LG ELECTRONICS INC.

Inventor： Geunhwan Kim ,  Juyoung Joung ,  Jungnam An ,  Minho Kim

IPC: F21V8/00

CPC classification number: G02B6/0026 ,  G02B6/0031 ,  G02B6/0066

Abstract: The present invention can be applied to the technical field pertaining to display devices and, for example, relates to a flat lighting device using a light emitting diode (LED) and a display device including same. The present invention provides a display device including a flat lighting device, wherein the display device may comprise: a light source which emits white light by using a light emitting diode and a yellow phosphor; a red phosphor layer which is disposed on the light source and adsorbs a part of the white light emitted from the light source to emit red light; and a first dichroic filter layer which is disposed on the red phosphor layer and has a reflective pattern reflecting at least a part of the long-wavelength side of the wavelength region of the red light.

公开(公告)号：US11693276B2

公开(公告)日：2023-07-04

申请号：US17444466

申请日：2021-08-04

Applicant: LG ELECTRONICS INC.

Inventor： Geunhwan Kim ,  Wondo Kee ,  Sangsoo Hwang ,  Seongjun Kim

IPC: G02F1/1335

CPC classification number: G02F1/133614 ,  G02F1/133512

Abstract: Disclosed is a display device. The display device includes a display panel, an optical assembly configured to provide blue-based light to the display panel, and a light-absorbing layer located in the path of light provided from the optical assembly to the display panel, the light-absorbing layer being configured to absorb light in a predetermined wavelength range. The light provided to the display panel through the light-absorbing layer has optical characteristics such that the intensity of green-based light is 20 to 70% of the intensity (100%) of the blue-based light and the intensity of red-based light is 20 to 70% of the intensity of the blue-based light.

公开(公告)号：US10852577B2

公开(公告)日：2020-12-01

申请号：US15891280

申请日：2018-02-07

Applicant: LG ELECTRONICS INC.

Inventor： Geunhwan Kim ,  Minho Kim ,  Sujin Sim ,  Juyoung Joung

IPC: G02F1/1335 ,  G02F1/13357 ,  F21V8/00 ,  G02F1/135

Abstract: A display device is disclosed. The display device comprises: a display panel; an optical assembly providing the display panel with light; and a light absorbing layer positioned on an optical path, the optical path leading to the display panel from the optical assembly, wherein the light provided from the optical assembly to the display panel includes a blue-based light, a green-based light, and a red-based light, wherein an intensity of the green-based light is 25% to 38% with respect to an intensity of the blue-based light 100%, and wherein an intensity of the red-based light is 14% to 32% with respect to the intensity of the blue-based light 100%.

公开(公告)号：US10754080B2

公开(公告)日：2020-08-25

申请号：US16313119

申请日：2017-04-10

Applicant: LG ELECTRONICS INC.

Inventor： Sujin Sim ,  Sangmin Baek ,  Geunhwan Kim ,  Minho Kim ,  Juyoung Joung

IPC: G02F1/1335 ,  G02B5/28 ,  G02B5/22 ,  F21V8/00 ,  G02B6/10 ,  G02F1/13357 ,  G02B5/10 ,  G02B19/00

Abstract: A display device is disclosed. The display device according to the present disclosure includes a frame; a light assembly disposed in at least one edge area of the frame; a panel positioned in front of the frame; and a light guide plate positioned between the frame and the panel so that light emitted from the light assembly is transferred to the panel, wherein the light assembly includes a light source and a filter positioned at a light path between the light source and the light guide plate and changing characteristics of light emitted from the light source. The present disclosure can improve display quality of the display device by changing characteristics of light emitted from the light source.