公开(公告)号：US11435619B2

公开(公告)日：2022-09-06

申请号：US17381997

申请日：2021-07-21

Applicant: LG DISPLAY CO., LTD.

Inventor： MyungJoon Park ,  Kyuhwan Lee

IPC: G02F1/13357 ,  F21V8/00

Abstract: A backlight unit for a display device includes a light path control pattern disposed over a light source and including portions having different types of reflective characteristic and a reflective layer disposed on a substrate where the light source is mounted and including portions having different types of reflective characteristic, a light guide distance of a light emitted from the light source can be increased and a light uniformity can be maintained, so that as a light can be supplied to each area evenly while increasing a distance between the light sources and reducing the number of the light sources, an image quality of the backlight unit can be enhanced.

公开(公告)号：US11762238B2

公开(公告)日：2023-09-19

申请号：US17497463

申请日：2021-10-08

Applicant: LG Display Co., Ltd.

Inventor： Kyuhwan Lee ,  SangChul Ryu ,  DongSeok Lee

IPC: G02F1/1335 ,  H05K1/02 ,  G02F1/13357

CPC classification number: G02F1/133612 ,  G02F1/133603 ,  H05K1/0298 ,  H05K2201/10106 ,  H05K2201/10128

Abstract: Embodiments of the present disclosure relate to a printed circuit, a backlight unit, and a display device. The printed circuit on which a light source is mounted can be easily manufactured in a single form, by depositing and arranging a wiring layer on a substrate and mounting the light source on the wiring layer. Further, the printed circuit is arranged so that the wiring layer includes a plurality of bonding metal layers and a plurality of wiring metal layers, and a part of the bonding metal layer positioned between the plurality of wiring metal layers and disposed in an area overlapping a pad portion of the light source is removed. Therefore, even though the main metal layer of the wiring layer is removed during reworking, it is possible to provide the printed circuit capable of electrically connecting to the light source by the sub-metal layer of the wiring layer.

公开(公告)号：US20230214067A1

公开(公告)日：2023-07-06

申请号：US18070984

申请日：2022-11-29

Applicant: LG Display Co., Ltd.

Inventor： Sujin Chang ,  Jisu Yoon ,  JinRyun Kim ,  JeBeom Park ,  Kyuhwan Lee

IPC: G06F3/044 ,  H10K50/86 ,  H10K50/84

CPC classification number: G06F3/0443 ,  H01L51/5284 ,  H01L51/5237

Abstract: The present disclosure provides a display device including a substrate, an encapsulation layer over the substrate, a touch sensor layer on the encapsulation layer and including a plurality of touch sensors, and a transmittance control layer on or under the touch sensor layer.

公开(公告)号：US20220107530A1

公开(公告)日：2022-04-07

申请号：US17553398

申请日：2021-12-16

Applicant: LG DISPLAY CO., LTD.

Inventor： Kyuhwan Lee ,  SangChul Ryu ,  DongSeok Lee ,  MyungJoon Park ,  GwanHoon Park ,  Suhun Lee

IPC: G02F1/13357

Abstract: A display device including a display panel, and a backlight unit configured to provide light to the display panel are discussed. The backlight unit can include a light emitting section including a plurality of light emitting devices disposed on a substrate, and a light source protection layer disposed on the plurality of light emitting devices, a light conversion sheet having a plurality of light conversion patterns disposed in positions corresponding to the plurality of light emitting devices, respectively, a phosphor film disposed on the light conversion sheet, and at least one reflector including a plurality of holes on the substrate. An air gap is disposed between a top surface of the at least one reflector and a bottom surface of the light conversion sheet.