公开(公告)号：US11237428B2

公开(公告)日：2022-02-01

申请号：US16906117

申请日：2020-06-19

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Daesik Kim ,  Farid Mukhtarov ,  Yasuhiro Nishida

IPC: F21V7/00 ,  G02F1/13357 ,  G02F1/1335 ,  F21V7/06

Abstract: A display apparatus includes a liquid crystal panel; a light source module configured to provide light to the liquid crystal panel; a printed circuit board (PCB) on which the light source module is mounted; and at least one chassis accommodating the liquid crystal panel and the PCB. The light source module includes: a substrate; a reflector positioned on the substrate, and including a curved surface having a shape resulting from rotating a portion of a parabola around a directrix of the parabola, the directrix perpendicular to the substrate; and a plurality of light sources mounted on the substrate along focal points of the parabola of the reflector.

公开(公告)号：US12056305B2

公开(公告)日：2024-08-06

申请号：US18076675

申请日：2022-12-07

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Yongtaek Hong ,  Daesik Kim ,  Eunho Oh ,  Byeongmoon Lee

IPC: G06F3/041 ,  G06F3/045 ,  H10N30/30

CPC classification number: G06F3/04146 ,  G06F3/0412 ,  G06F3/045 ,  H10N30/302

Abstract: A pressure sensor includes: a first substrate; a second substrate having an inner surface and a touch surface that is opposite to the inner surface, wherein the inner surface faces the first substrate with a resistance sensing space therebetween; a first electrode and a second electrode, which are arranged spaced apart from each other in the resistance sensing space; and a piezoresistive pattern arranged between the first electrode and the second electrode and disposed in the resistance sensing space, wherein the piezoresistive pattern includes a porous elastic support and a plurality of conductive carbon structures dispersed in the porous elastic support.

公开(公告)号：US11768400B2

公开(公告)日：2023-09-26

申请号：US17697610

申请日：2022-03-17

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Daesik Kim ,  Yasuhiro Nishida ,  Farid Mukhtarov

IPC: G02F1/13357 ,  G02F1/1335

CPC classification number: G02F1/133605 ,  G02F1/133603 ,  G02F1/133606 ,  G02F1/133611 ,  G02F1/133614

Abstract: Provided is a backlight unit, a display apparatus, and a method of manufacturing the display apparatus capable of securing a uniform and wide illumination area with a small number of light sources through reflection of a reflective layer. The backlight unit includes a plurality of light sources configured to emit light; a first reflective layer configured to reflect the light emitted from the plurality of light sources; and a second reflective layer configured to reflect the light reflected from the first reflective layer, wherein an amount of reflection from the first reflective layer and an amount of transmission through the first reflective layer are different from each other according to an angle of incidence of light incident on the first reflective layer.

公开(公告)号：US12222601B2

公开(公告)日：2025-02-11

申请号：US18103933

申请日：2023-01-31

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Daesik Kim ,  Yasuhiro Nishida ,  Kyonghyong Kim ,  Jongil Kim

IPC: G02F1/1335 ,  G02F1/13357

Abstract: A display apparatus includes: a liquid crystal panel; and a backlight unit configured to provide light to the liquid crystal panel, wherein the backlight unit includes: a substrate; a light emitting diode provided on the substrate; a quantum dot cover covering the light emitting diode and configured to convert a wavelength of light emitted from the light emitting diode; a refractive cover covering the quantum dot cover, wherein a surface of the refractive cover has a recessed portion that is recessed toward the quantum dot cover and a reflector provided in the recessed portion to be positioned above the quantum dot cover, and wherein a diameter of a lower surface of the reflector is smaller than a diameter of an upper surface of the reflector.

公开(公告)号：US12124130B2

公开(公告)日：2024-10-22

申请号：US18388058

申请日：2023-11-08

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Daesik Kim ,  Kyonghyong Kim ,  Yasuhiro Nishida ,  Jongil Kim

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

CPC classification number: G02F1/133607 ,  G02F1/133603 ,  G02F1/133611 ,  G02F1/133605

Abstract: A display device includes a backlight unit including: a substrate; a Light Emitting Diode (LED) disposed on a surface of the substrate; and a refractive cover configured to surround the LED. The refractive cover includes: a first refractive surface to: be spaced apart from the LED by a preset distance, be positioned on the upper surface of the substrate, be parallel to an axis of the LED or be inclined within one angle from the axis of the LED; a second refractive surface to be a curved surface in which an angle between a tangent line and the axis of the LED increases from a region connected to another upper portion of the first refractive surface toward a direction of the axis of the LED; and a third refractive surface to be connected to an portion of the second refractive surface and be perpendicular to the axis of the LED.

公开(公告)号：US11803082B2

公开(公告)日：2023-10-31

申请号：US17979926

申请日：2022-11-03

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Yasuhiro Nishida ,  Farid Mukhtarov ,  Daesik Kim

IPC: G02F1/00 ,  G02F1/13357 ,  G02F1/1335 ,  H05K1/02 ,  H05K1/18

CPC classification number: G02F1/133605 ,  G02F1/133562 ,  G02F1/133603 ,  G02F1/133612 ,  H05K1/0274 ,  H05K1/181 ,  H05K2201/10106 ,  H05K2201/2054

Abstract: A backlight unit comprising a printed circuit board; a plurality of light sources at a surface of the printed circuit board, the plurality of light sources to emit light; and a reflective sheet, arranged above the plurality of light sources, having differing transmittance on the basis of incident angle of the light from the plurality of light sources, respectively, wherein the reflective sheet is provided with at least one gap between two adjacent light sources from among the plurality of light sources.

公开(公告)号：US11719976B2

公开(公告)日：2023-08-08

申请号：US17895538

申请日：2022-08-25

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Daesik Kim ,  Kyonghyong Kim ,  Doyoung Kwak ,  Jeongtaek Kim ,  Jongil Kim ,  Yasuhiro Nishida ,  Inyoul Seo ,  Byunghun Woo

IPC: G02F1/13357 ,  G02F1/1335

CPC classification number: G02F1/133603 ,  G02F1/133605 ,  G02F1/133607

Abstract: A display apparatus includes a liquid crystal panel, and a backlight unit configured to emit light to the liquid crystal panel. The backlight unit includes a substrate, a light emitting diode (LED) provided on the substrate and configured to emit light, and a refractive cover formed by being provided at a plurality of points separated from each other, and configured to enclose the LED.

公开(公告)号：US20230214044A1

公开(公告)日：2023-07-06

申请号：US18076675

申请日：2022-12-07

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Yongtaek HONG ,  Daesik Kim ,  Eunho Oh ,  Byeongmoon Lee

IPC: G06F3/041 ,  G06F3/045 ,  H10N30/30

CPC classification number: G06F3/04146 ,  G06F3/0412 ,  G06F3/045 ,  H10N30/302

Abstract: A pressure sensor includes: a first substrate; a second substrate having an inner surface and a touch surface that is opposite to the inner surface, wherein the inner surface faces the first substrate with a resistance sensing space therebetween; a first electrode and a second electrode, which are arranged spaced apart from each other in the resistance sensing space; and a piezoresistive pattern arranged between the first electrode and the second electrode and disposed in the resistance sensing space, wherein the piezoresistive pattern includes a porous elastic support and a plurality of conductive carbon structures dispersed in the porous elastic support.