公开(公告)号：US20230314874A1

公开(公告)日：2023-10-05

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

CPC classification number: G02F1/133607 ,  G02F1/133603 ,  G02F1/133605 ,  G02F1/133608 ,  G02F1/133614 ,  G02F2202/36 ,  G02F1/133617

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：US20230053454A1

公开(公告)日：2023-02-23

申请号：US17979926

申请日：2022-11-03

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Yasuhiro NISHIDA ,  Farid MUKHTAROV ,  Daesik KIM

IPC: G02F1/13357 ,  G02F1/1335

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：US20220206337A1

公开(公告)日：2022-06-30

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

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：US20240069382A1

公开(公告)日：2024-02-29

申请号：US18388058

申请日：2023-11-08

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Daesik KIM ,  Kyonaghyong KIM ,  Yasuhiro NISHIDA ,  Jongil KIM

IPC: 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：US20240027828A1

公开(公告)日：2024-01-25

申请号：US18199654

申请日：2023-05-19

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Daesik KIM ,  Kyonghyong KIM ,  Jongil KIM ,  Yasuhiro NISHIDA

IPC: G02F1/13357 ,  G02F1/1335

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

Abstract: The present disclosure provides display apparatuses including a backlight unit (BLU). In some embodiments, the display apparatus includes a liquid crystal panel, and a BLU configured to provide light to the liquid crystal panel. The BLU includes a substrate, a plurality of light-emitting diodes (LEDs) on the substrate and configured to emit the light, a plurality of refractive covers, and a plurality of reflectors on the substrate disposed between the plurality of LEDs and configured to reflect the light emitted from the plurality of LEDs. Each refractive cover is disposed on a corresponding LED of the plurality of LEDs.

公开(公告)号：US20210026201A1

公开(公告)日：2021-01-28

申请号：US16906117

申请日：2020-06-19

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Daesik KIM ,  Farid MUKHTAROV ,  Yasuhiro NISHIDA

IPC: G02F1/13357

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：US20250107150A1

公开(公告)日：2025-03-27

申请号：US18650292

申请日：2024-04-30

Applicant: Samsung Electronics Co., Ltd.

Inventor： Daesik KIM ,  Seonbae KIM ,  Taeyong KWON ,  Changhee KIM ,  Doohyun LEE ,  Jaehyun KANG ,  Jinyoung PARK ,  Hyunho PARK ,  Jimin YU ,  Jinwook LEE ,  Seunghyun HWANG

IPC: H01L29/417 ,  H01L21/285 ,  H01L29/06 ,  H01L29/08 ,  H01L29/40 ,  H01L29/423 ,  H01L29/45 ,  H01L29/66 ,  H01L29/775

Abstract: A semiconductor device includes a substrate including an active region, a gate structure on the substrate, a plurality of channel layers on the active region, spaced apart from each other and surrounded by the gate structure, a source/drain region in a region at which the active region is recessed, on at least one side of the gate structure, and connected to the channel layers, and a contact plug partially recessing the source/drain region from an upper surface of the source/drain region, electrically connected to the source/drain region, and including a metal-semiconductor compound layer along a recessed surface of the source/drain region and a contact conductor layer on the metal-semiconductor compound layer, wherein the metal-semiconductor compound layer has a first thickness on a side surface of the contact conductive layer and a second thickness on a bottom surface of the contact plug, the second thickness being smaller than the first thickness.

公开(公告)号：US20230126774A1

公开(公告)日：2023-04-27

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

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.