公开(公告)号：US20230335071A1

公开(公告)日：2023-10-19

申请号：US18215027

申请日：2023-06-27

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sungyeol KIM ,  Chunsoon PARK ,  Kyehoon LEE ,  Hyukjun JANG

IPC: G09G3/34

CPC classification number: G09G3/3426 ,  G09G2320/0233 ,  G09G2320/041

Abstract: A display device includes a liquid crystal panel; a plurality of light sources configured to emit light toward the liquid crystal panel, wherein the plurality of light sources are divided into a plurality of dimming blocks, each dimming block including one or more light sources; a driver configured to provide a current to each light source of the plurality of light sources; and a processor configured to: control the driver to provide the current to the one or more light sources included in each dimming block of the plurality of dimming blocks based on image data, obtain an average current value of currents provided to the one or more light sources included in each dimming block of the plurality of dimming blocks for a reference time based on the image data, and control the driver to provide a reduced current to the plurality of light sources based on at least one of a predetermined number of first dimming blocks or an arrangement of the first dimming blocks having the average current value being greater than or equal to a first reference current value.

公开(公告)号：US20230326779A1

公开(公告)日：2023-10-12

申请号：US18042577

申请日：2020-09-15

Applicant: MiCo Ceramics Ltd. ,  Samsung Electronics Co. Ltd.

Inventor： Myungsub JUNG ,  Jun Won SEO ,  Sungyeol KIM ,  Sungyong LIM ,  Hadong JIN ,  Jaehyun CHOI

IPC: H01L21/683 ,  H01L21/687

CPC classification number: H01L21/6833 ,  H01L21/68785

Abstract: Disclosed are a susceptor for enabling uniform plasma treatment over the entire surface of a wafer, and a manufacturing method therefor. Provided is the susceptor comprising: a dielectric plate having an upper surface on which a wafer is loaded, and a lower surface facing same; and an inner RF electrode and an outer RF electrode that are buried in the dielectric plate, wherein, with respect to the lower surface, the height of a first plane in which the inner RF electrode is buried is less than the height of a second plane in which the outer RF electrode is buried.

公开(公告)号：US20230244105A1

公开(公告)日：2023-08-03

申请号：US18078206

申请日：2022-12-09

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Chunsoon PARK ,  Sungyeol KIM ,  Hanmi CHOI

IPC: G02F1/13357 ,  G02F1/1335 ,  H01L25/075 ,  H01L33/62 ,  H01L33/56 ,  H01L33/48

CPC classification number: G02F1/133603 ,  G02F1/133612 ,  H01L25/0753 ,  H01L33/62 ,  G02F1/133605 ,  H01L33/56 ,  H01L33/486

Abstract: A display device comprising: a light source plate behind a liquid crystal panel to provide light to the liquid crystal panel. The light source plate comprises: a printed circuit board including a power wiring layer and a photo solder resist (PSR) layer; a plurality of LED chips mountable directly on the printed circuit board; and a plurality of molding parts formed of a molding material comprising a material having thixotropy to respectively surround the plurality of LED chips . A reflective sheet includes a plurality of openings formed to correspond to positions of the plurality of molding parts so that while the reflective sheet is between the liquid crystal panel and the light source plate, the plurality of molding parts are respectively positionable inside the plurality of openings with the plurality of molding members spaced apart from an inner circumferential surfaces of each of the plurality of openings.

公开(公告)号：US20230187175A1

公开(公告)日：2023-06-15

申请号：US17859316

申请日：2022-07-07

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hyosin KIM ,  Sungyong LIM ,  Minsung KIM ,  Dongyub KIM ,  Sungyeol KIM ,  Jongbeom MOON ,  Seungbo SHIM

IPC: H01J37/32 ,  H03H7/38

CPC classification number: H01J37/32183 ,  H03H7/38 ,  H01J2237/24564

Abstract: Provided are a hybrid matcher capable of precisely performing impedance matching at a high speed when RF power is applied with a multi-level pulse in a facility using RF plasma, and an RF matching system including the hybrid matcher. The hybrid matcher includes a matching circuit in which a plurality of variable element-switch sets are connected to each other in parallel, the variable element-switch sets each including a variable impedance element and a switch connected to the variable impedance element in series and electrically operating therewith, a sensor disposed at a front stage of the matching circuit and configured to measure a current and a voltage of radio frequency (RF) power applied from an RF generator, a variable element driver configured to drive the variable impedance element, a switch driver configured to drive the switch, and a controller configured to control the variable element driver and the switch driver.

公开(公告)号：US20230091161A1

公开(公告)日：2023-03-23

申请号：US17711181

申请日：2022-04-01

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sejin OH ,  Youngdo KIM ,  Sanghun KIM ,  Sungyeol KIM ,  Younghwan KIM ,  Taemin EARMME ,  Changyun LEE ,  Sunghun JANG

IPC: H01J37/32 ,  H01L21/311

Abstract: A plasma control device includes a matching circuit, a resonance circuit, and a controller. The matching circuit is connected to a first electrode of a plasma chamber including the first electrode and a second electrode, and matches impedance of a radio frequency (RF) power by an RF driving signal with an impedance of the first electrode. The RF driving signal is based on a first RF signal having a first frequency. The resonance circuit is connected between the second electrode and a ground voltage, and controls plasma distribution within the plasma chamber by providing resonance with respect to harmonics associated with the first frequency and by adjusting a ground impedance between the second electrode and the ground voltage. The controller provides the resonance circuit with a capacitance control signal associated with the resonance and switch control signals associated with the ground impedance.

公开(公告)号：US20230057742A1

公开(公告)日：2023-02-23

申请号：US17982165

申请日：2022-11-07

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Seungyong SHIN ,  Kyehoon LEE ,  Sungyeol KIM ,  Jonghoon JUNG

IPC: G09G3/36

Abstract: A display device, which fixes the magnitude of a driving current flowing through light-emitting devices in a low luminance region and controls an application period of the driving current, includes: light-emitting devices; a processor for controlling the light-emitting devices on the basis of a gray level required for the light-emitting devices in each unit frame; and a timing controller which divides the unit frame into a plurality of sub-frames and generates a scan signal corresponding to each sub-frame. The processor: when the gray level is greater than or equal to a preset value, determines a luminance value of the light-emitting devices on the basis of the gray level and turns on the light-emitting devices with the determined luminance value in all of the plurality of sub-frames; when the gray level is less than the preset value, determines a light-emitting period of the light-emitting devices on the basis of the gray level and divides, on the basis of the light-emitting period, the plurality of sub-frames into a first and a second sub-frame group; turns on the light-emitting devices with a preset luminance value in all sub-frames belonging to the first sub-frame group; and turns off the light-emitting devices in sub-frames belonging to the second sub-frame group or turns on the light-emitting devices with a luminance value less than the preset luminance value.

公开(公告)号：US20230036292A1

公开(公告)日：2023-02-02

申请号：US17542917

申请日：2021-12-06

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sungyeol KIM ,  Kyehoon LEE ,  Youngmin LEE ,  Junsung CHOI

IPC: G02F1/13357 ,  H01L25/075

Abstract: A display apparatus including a light source; a display panel; an optical sheet. The light source including a first light source substrate and a second light source substrate spaced apart from the first light source substrate in a width direction. The light source is mounted on the light source module and a width of a region defined by half of a maximum brightness of a light profile of the light source, is set as a full width at half maximum brightness. A distance between a center of the first light source substrate in the width direction and a center of the second light source substrate in the width direction is referred to as a pitch, the full width at half maximum brightness of the light source and the pitch satisfy: 1.0 ≤ full width at half maximum brightness/pitch ≤ 2.0..

公开(公告)号：US20220208742A1

公开(公告)日：2022-06-30

申请号：US17698637

申请日：2022-03-18

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sungyeol KIM ,  Kyungsoo PARK ,  Chunsoon PARK ,  Kyehoon LEE

IPC: H01L25/075 ,  H01L33/48 ,  H01L33/10

Abstract: A display apparatus is provided. The display apparatus includes a printed circuit board (PCB), a light emitting diode (LED) chip provided on the PCB and configured to output light, an optical dome provided on the LED chip and the LED chip, a void formed by air inside the optical dome and between the LED chip and the PCB, and an air barrier provided between the LED chip and the PCB such that the void is spaced apart from the LED chip.

公开(公告)号：US20220180830A1

公开(公告)日：2022-06-09

申请号：US17473311

申请日：2021-09-13

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sungyeol KIM ,  Sungbok YANG ,  Seokwoo YONG ,  Kyehoon LEE ,  Junsung CHOI

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

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：US20220180829A1

公开(公告)日：2022-06-09

申请号：US17473283

申请日：2021-09-13

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sungyeol KIM ,  Sungbok YANG ,  Seokwoo YONG ,  Kyehoon LEE ,  Junsung CHOI

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

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.