公开(公告)号：US20240036398A1

公开(公告)日：2024-02-01

申请号：US18195471

申请日：2023-05-10

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Seungyong SHIN ,  Sungyeol Kim ,  Hyukjun Jang

IPC: G02F1/1335

CPC classification number: G02F1/133612 ,  G02F1/133613 ,  G02F2203/48

Abstract: In some embodiments, a display apparatus includes a liquid crystal panel, and a light apparatus including a substrate including a plurality of dimming blocks that are arranged in a matrix, a power wire configured to supply power to the plurality of dimming blocks, and a plurality of driving devices configured to control a driving current supplied to the plurality of dimming blocks. Each dimming block of the plurality of dimming blocks includes a plurality of light sources. A second dimming block of the plurality of dimming blocks is arranged in an (n+1)th row adjacent to the nth row. The power wire is arranged between the nth row corresponding to the first dimming block and the (n+1)th row. The power wire is coupled to a first light source of the first dimming block and to a second light source of the second dimming block.

公开(公告)号：US11874561B2

公开(公告)日：2024-01-16

申请号：US17733661

申请日：2022-04-29

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Kyungsoo Park ,  Sungyeol Kim ,  Chunsoon Park ,  Kyehoon Lee

IPC: G02F1/1335 ,  H01L25/075 ,  H01L33/10 ,  H01L33/50 ,  H01L33/56

CPC classification number: G02F1/133614 ,  G02F1/133504 ,  H01L25/0753 ,  H01L33/10 ,  H01L33/502 ,  H01L33/56

Abstract: A display apparatus and light source device thereof are provided. The light source device includes an optical dome having a specifically defined shape to be able to maintain an optical profile of a light source. According to the disclosure, a display apparatus includes a printed circuit board (PCB), a light emitting diode (LED) chip mounted on the PCB and configured to emit light, an optical dome formed to enclose the LED chip by being dispensed on the LED chip, and a liquid crystal panel configured to block or pass light output from the LED chip, wherein the optical dome may be formed to satisfy 1.70

公开(公告)号：US11835818B2

公开(公告)日：2023-12-05

申请号：US17962234

申请日：2022-10-07

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sungyeol Kim ,  Chunsoon Park ,  Kyehoon Lee

IPC: G02F1/00 ,  G02F1/13357

CPC classification number: G02F1/133605 ,  G02F1/133603

Abstract: Disclosed herein is a display apparatus and a light source apparatus thereof. The light source apparatus includes a reflective sheet in which a through hole is formed, a light source disposed in the through hole and including a light emitting diode, and a substrate to which the light emitting diode is attached and including a protection layer disposed on one side facing the reflective sheet. The protection layer includes a first protection layer disposed adjacent to the light emitting diode, and a second protection layer having a lower reflectance than the first protection layer.

公开(公告)号：US11809042B2

公开(公告)日：2023-11-07

申请号：US17864934

申请日：2022-07-14

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Chunsoon Park ,  Sungyeol Kim ,  Kyehoon Lee

IPC: G02F1/13357 ,  G02F1/1335

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

Abstract: A light source device comprises a diffuser plate and a light source module disposed behind the diffuser plate. The light source module includes a substrate, a plurality of light emitting diodes mounted on the substrate, and a plurality of reflective layers each provided on a front surface of the plurality of light emitting diodes. When a distance between the centers of each of the plurality of light emitting diodes is referred to as a pitch, and a distance between the diffuser plate and the substrate is referred to as an optical distance, a ratio of the pitch to the optical distance satisfies the following expression: 2.5≤pitch/optical distance≤4.5.

公开(公告)号：US11782085B2

公开(公告)日：2023-10-10

申请号：US16924971

申请日：2020-07-09

Applicant: Samsung Electronics Co., Ltd.

Inventor： Meehyun Lim ,  Sungyeol Kim ,  Hyungjung Yong ,  Jinyeong Yun

IPC: G01R31/28 ,  H01L23/00 ,  H01L25/065

CPC classification number: G01R31/2803 ,  G01R31/2815 ,  H01L24/14 ,  H01L25/0657

Abstract: A test method for a semiconductor device includes determining a contact failure between a first semiconductor chip and a second semiconductor chip during assembly of a semiconductor package including the first semiconductor chip and the second semiconductor chip, using a test circuit embedded in the first semiconductor chip, and after the assembly of the semiconductor package, determining whether the semiconductor package is defective by using the test circuit.

公开(公告)号：US20230117953A1

公开(公告)日：2023-04-20

申请号：US17877439

申请日：2022-07-29

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sejin OH ,  Youngdo Kim ,  Sanghun Kim ,  Sungyeol Kim ,  Sangki Nam ,  Taemin Earmme ,  Changyun Lee ,  Seongmoon Ha

IPC: H01J37/32

Abstract: A plasma generator may include a dielectric tube, an inner helical coil surrounding the dielectric tube and configured to generate plasma by forming a stationary wave of at least one of a magnetic field and an electromagnetic wave in the dielectric tube, a variable capacitor configuring a closed loop with the inner helical coil, an outer helical coil surrounding the inner helical coil and magnetically coupled to the inner helical coil, and a radio frequency (RF) power supply configured to provide RF power at a variable frequency to the inner helical coil.

公开(公告)号：US20230055132A1

公开(公告)日：2023-02-23

申请号：US17843413

申请日：2022-06-17

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Youngmin LEE ,  Sungyeol Kim ,  Hyungsuk Kim ,  Seungyong Shin ,  Kyehoon Lee

IPC: G02F1/13357

Abstract: A display apparatus including a liquid crystal panel; and a backlight unit configured to emit light to the liquid crystal panel is provided. The backlight unit includes a bottom chassis; a first interface board disposed on a front surface of the bottom chassis; a plurality of light source modules disposed on the front surface of the bottom chassis, arranged at predetermined intervals, and each of the plurality of light source modules having one end connected to the first interface board; and a second interface board disposed on a rear surface of the bottom chassis and connected to the first interface board.

公开(公告)号：US20220093369A1

公开(公告)日：2022-03-24

申请号：US17335659

申请日：2021-06-01

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jang-Yeob Lee ,  Sungyeol Kim ,  Jinyeong Yun ,  Minsung Kim ,  HoSun Yoo

IPC: H01J37/32

Abstract: A plasma processing apparatus includes a chamber providing a space for processing a substrate, a substrate stage configured to support the substrate within the chamber and including a lower electrode, an upper electrode facing the lower electrode, a focus ring in or on an upper peripheral region of the substrate stage to surround the substrate, and a plasma adjustment assembly in at least one of a first position between the upper electrode and the lower electrode and a second position between the focus ring and the lower electrode, the plasma adjustment assembly including a photoreactive material layer and a plurality of light sources configured to irradiate light onto a local region of the photoreactive material layer. A capacitance of the local region is changed as the light is irradiated to the local region.

公开(公告)号：US11227556B1

公开(公告)日：2022-01-18

申请号：US17350735

申请日：2021-06-17

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sungyeol Kim ,  Sungbok Yang ,  Seokwoo Yong ,  Kyehoon Lee ,  Junsung Choi

IPC: G09G3/34 ,  G02F1/1335 ,  G02F1/13357 ,  G09G3/36

Abstract: A display apparatus includes: a liquid crystal panel; and a light apparatus on which the liquid crystal panel is disposed, the light apparatus including: a substrate; a plurality of dimming blocks including a first dimming block and a second dimming block disposed immediately next to the first dimming block, each of the plurality of dimming blocks including at least one respective light source disposed on a first side of the substrate; and a plurality of driving devices disposed on the first side of the substrate and including a first driving device disposed in the first dimming block and a second driving device disposed in the second dimming block, each driving device of the plurality of driving devices being configured to provide a driving current to the at least one respective light source included in a respective one of the plurality of dimming blocks, wherein the first driving device and the second driving device are disposed at relatively different positions respectively within the first dimming block and the second dimming block.

公开(公告)号：US20210156904A1

公开(公告)日：2021-05-27

申请号：US16924971

申请日：2020-07-09

Applicant: Samsung Electronics Co., Ltd.

Inventor： Meehyun Lim ,  Sungyeol Kim ,  Hyungjung Yong ,  Jinyeong Yun

IPC: G01R31/28 ,  H01L23/00 ,  H01L25/065

Abstract: A test method for a semiconductor device includes determining a contact failure between a first semiconductor chip and a second semiconductor chip during assembly of a semiconductor package including the first semiconductor chip and the second semiconductor chip, using a test circuit embedded in the first semiconductor chip, and after the assembly of the semiconductor package, determining whether the semiconductor package is defective by using the test circuit.