公开(公告)号：US20250048893A1

公开(公告)日：2025-02-06

申请号：US18745452

申请日：2024-06-17

Applicant: LG Display Co., Ltd.

Inventor： DongRyul Jung ,  Jisu Yoon ,  Jiseok Yang ,  Kyuhwan Lee

IPC: H10K59/80 ,  G06F3/03 ,  G06F3/0354 ,  G06F3/038 ,  G09G3/3233 ,  H10K39/34 ,  H10K59/35

Abstract: A display device is disclosed that includes a first substrate, a plurality of first color filters included in a color filter layer and transmitting first color light having a first color wavelength included in a first wavelength band, a plurality of second color filters included in the color filter layer and transmitting second color light having a second color wavelength included in the first wavelength band, a plurality of third color filters included in the color filter layer and transmitting third color light having a third color wavelength included in the first wavelength band, and a photoactive layer responsive to light having a second wavelength included in a second wavelength band different from the first wavelength band and including two or more openings overlapping with two or more second color filters among the plurality of second color filters.

公开(公告)号：US12045423B2

公开(公告)日：2024-07-23

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 ,  H10K50/84 ,  H10K50/86

CPC classification number: G06F3/0443 ,  H10K50/84 ,  H10K50/865

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：US11493802B2

公开(公告)日：2022-11-08

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: G02F1/00 ,  G02F1/13357 ,  G02F1/1335

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.

公开(公告)号：US11460732B2

公开(公告)日：2022-10-04

申请号：US17094417

申请日：2020-11-10

Applicant: LG Display Co., Ltd.

Inventor： MyungJoon Park ,  JaeHo Lee ,  GwanHoon Park ,  Kyuhwan Lee

IPC: G02F1/13357 ,  G02F1/1335

Abstract: Embodiments of the present disclosure relates to a light path control element, a backlight unit and a display device, and by disposing, over one or more light sources, a light path control element including a first engraved patterns located on a surface through which light exits and located to correspond to respective light sources, and a second engraved patterns located on a surface into which light is incident and located in an areas between light sources, it is possible to improve functions of guiding and diffusing light emitted from the light sources. Accordingly, by increasing a distance between light sources and enabling a hot spot to be prevented and luminance uniformity to improve, it is possible to reduce the number of light sources and provide a backlight unit producing improved image quality.

公开(公告)号：US20210149251A1

公开(公告)日：2021-05-20

申请号：US17077672

申请日：2020-10-22

Applicant: LG DISPLAY CO., LTD.

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

IPC: G02F1/13357

Abstract: Disclosed is a backlight unit and a display device including the same. 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, wherein an air gap is disposed between a top surface of the substrate and a bottom surface of the light source protection layer and in between the 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, and a phosphor film disposed on the light conversion sheet.

公开(公告)号：US20250044900A1

公开(公告)日：2025-02-06

申请号：US18773337

申请日：2024-07-15

Applicant: LG Display Co., Ltd.

Inventor： Jae Ho Lee ,  Jisu Yoon ,  DongRyul Jung ,  Kyuhwan Lee

IPC: G06F3/042 ,  G06F3/0354

Abstract: A touch display device comprising a display panel including a plurality of light emitting elements and a plurality of transistors and an infrared absorption pattern formed on an emission surface of the display panel, wherein electrodes included in the plurality of light emitting elements or electrodes included in the plurality of transistors are infrared reflective electrodes.

公开(公告)号：US11353740B2

公开(公告)日：2022-06-07

申请号：US17072336

申请日：2020-10-16

Applicant: LG Display Co., Ltd.

Inventor： Kyuhwan Lee ,  GwanHoon Park ,  Suhun Lee

IPC: G02F1/1335 ,  G02F1/13357

Abstract: A backlight unit comprises a light emitting unit having a plurality of light emitting elements, a light conversion sheet having a plurality of light conversion patterns disposed at positions corresponding to the plurality of light emitting elements, and a phosphor film disposed on the light conversion sheet and including a partition wall dividing a light emitting surface into a plurality of sub-blocks and phosphor layers respectively disposed on the plurality of sub-blocks.

公开(公告)号：US20220128865A1

公开(公告)日：2022-04-28

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

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：US11231615B2

公开(公告)日：2022-01-25

申请号：US17077672

申请日：2020-10-22

Applicant: LG DISPLAY CO., LTD.

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

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

Abstract: Disclosed is a backlight unit and a display device including the same. 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, wherein an air gap is disposed between a top surface of the substrate and a bottom surface of the light source protection layer and in between the 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, and a phosphor film disposed on the light conversion sheet.

公开(公告)号：US20250044881A1

公开(公告)日：2025-02-06

申请号：US18780137

申请日：2024-07-22

Applicant: LG Display Co., Ltd.

Inventor： Kyuhwan Lee ,  Jiseok Yang ,  DongRyul Jung ,  Jae Ho Lee

IPC: G06F3/0354 ,  G06F3/03 ,  G09G3/3233 ,  H10K59/38 ,  H10K59/80

Abstract: A display device includes a first substrate including a plurality of transmissive areas allowing light having a first wavelength to be transmitted and a plurality of non-transmissive areas different from the plurality of transmissive areas, a plurality of light emitting elements disposed in the plurality of non-transmissive areas, an encapsulation layer on the plurality of light emitting elements, a code pattern layer in which at least one photoactive pattern including a photoactive material responsive to light having a second wavelength different from the first wavelength is disposed, and a cover window on the encapsulation layer, the at least one photoactive pattern being disposed in at least one of the plurality of transmissive areas.