公开(公告)号：US20230384636A1

公开(公告)日：2023-11-30

申请号：US18118979

申请日：2023-03-08

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Chunsoon Park ,  Sungyeol Kim ,  Seungyong Shin ,  Jonghoon Jung

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

CPC classification number: G02F1/133603 ,  G02F1/133612 ,  H01L25/0753 ,  H01L33/62 ,  G02F2201/50

Abstract: Provided is a display apparatus having an improved degree of freedom in wiring design, the display apparatus including: a liquid crystal panel; and a light source apparatus, wherein the light source apparatus includes: a substrate; and a plurality of light emitting diodes (LEDs) provided on the substrate, wherein each of the plurality of LEDs has a lower surface in contact with a first feeding pad and a second feeding pad formed on the substrate, the lower surface of each of the plurality of LEDs includes a first contact area provided to be in contact with the first feeding pad, a second contact area provided to be in contact with the second feeding pad, and a non-contact area other than the first contact area and the second contact area on the lower surface, and each of the first contact area and the second contact area is smaller than the non-contact area.

公开(公告)号：US11830453B2

公开(公告)日：2023-11-28

申请号：US17742992

申请日：2022-05-12

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jonghoon Jung ,  Sungyeol Kim ,  Seungyong Shin ,  Junsung Choi

IPC: G09G3/36 ,  G09G3/34

CPC classification number: G09G3/3648 ,  G09G3/3426 ,  G09G2320/0233 ,  G09G2330/021

Abstract: A display apparatus includes a liquid crystal panel, a power supply, a backlight unit including a plurality of sub-blocks configured to radiate light to the liquid crystal panel, and a controller configured to determine a peak voltage and a source voltage supplied to each of the plurality of sub-blocks. Each of the plurality of sub-blocks includes a first switching element configured to receive the peak voltage as a gate voltage, and a second switching element including a drain terminal connected to a source terminal of the first switching element, the second switching element configured to receive an amount of charges corresponding to the source voltage through a gate terminal.

公开(公告)号：US11768401B2

公开(公告)日：2023-09-26

申请号：US17827164

申请日：2022-05-27

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sungyeol Kim ,  Kyehoon Lee ,  Kyungsoo Park ,  Hyukjun Jang

IPC: G02F1/13357

CPC classification number: G02F1/133605 ,  G02F1/133603

Abstract: A display apparatus includes a liquid crystal panel, a substrate, and a plurality of light emitting diodes (LEDs) provided on one side of the substrate and configured to emit light towards the liquid crystal panel. Each of the plurality of LEDs includes a first reflection layer, a second reflection layer, and a light emitting layer provided between the first reflection layer and the second reflection layer. The second reflection layer is provided between the substrate and the light emitting layer. A first reflectivity of the first reflection layer for a first light entering at a first incident angle is different from a second reflectivity of the second reflection layer for the first light entering at the first incident angle.

公开(公告)号：US11656496B2

公开(公告)日：2023-05-23

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 ,  G02F1/1335 ,  H01L33/56 ,  H01L33/54

CPC classification number: G02F1/133603 ,  H01L25/0753 ,  G02F1/133612 ,  H01L33/54 ,  H01L33/56

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：US20230118897A1

公开(公告)日：2023-04-20

申请号：US17968500

申请日：2022-10-18

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sungyeol Kim ,  Hyungsuk Kim ,  Chunsoon Park ,  Hyukjun Jang

IPC: H01L33/10 ,  H01L25/075 ,  G02F1/13357 ,  C01G23/047 ,  C01B33/12

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; and a plurality of light emitting diode groups provided on an upper surface of the substrate, wherein each of the plurality of light emitting diode groups includes a red light emitting diode, a green light emitting diode, and a blue light emitting diode, wherein each of the red light emitting diode, the green light emitting diode, and the blue light emitting diode includes: a light emitting layer; and a distributed Bragg reflector (DBR) provided on the light emitting layer, and wherein reflectivities of the distributed Bragg reflectors of the red light emitting diode, the green light emitting diode, and the blue light emitting diode are within a same range of reflectivity according to an incident angle of light incident on the distributed Bragg reflectors.

公开(公告)号：US12125687B2

公开(公告)日：2024-10-22

申请号：US17709613

申请日：2022-03-31

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Youngdo Kim ,  Sungyong Lim ,  Daewon Kang ,  Sungyeol Kim ,  Sangki Nam ,  Myunggeun Song ,  Byungkook Cho ,  Hyeoncheol Jin ,  Jonghun Pi

IPC: H01J37/32 ,  H01L21/683

CPC classification number: H01J37/32715 ,  H01J37/32183 ,  H01J37/32935 ,  H01J2237/24564 ,  H01J2237/3341 ,  H01L21/6833

Abstract: A semiconductor processing system includes: a semiconductor processing chamber including an electrostatic chuck disposed in a chamber housing, and a first power supplier for supplying first radio frequency (RF) power to an internal electrode disposed in the electrostatic chuck; a voltage measuring device for measuring a voltage corresponding to the first RF power to output a digital signal; and a control device for outputting an interlock control signal to the semiconductor processing chamber, when it is determined that the voltage increases to be within a predetermined reference range based on the digital signal. The electrostatic chuck is configured to enable a wafer to be seated on a surface of the electrostatic chuck.

公开(公告)号：US12062737B2

公开(公告)日：2024-08-13

申请号：US17551901

申请日：2021-12-15

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sungyeol Kim ,  Chunsoon Park ,  Kyehoon Lee

IPC: H01L33/10 ,  G02F1/13357 ,  H01L25/075 ,  H01L33/48 ,  H01L33/56

CPC classification number: H01L33/10 ,  G02F1/133603 ,  H01L25/0753 ,  H01L33/486 ,  H01L33/56

Abstract: A display apparatus is provided. The display apparatus includes a display panel; and a light emitting diode (LED) chip configured to emit light to the display panel. The LED chip includes: a light emitting layer configured to emit light; a semiconductor layer provided on the light emitting layer; and a growth substrate provided on the semiconductor layer. The light emitting layer is arranged to be biased toward a first side of the growth substrate such that a center of an upper surface of the growth substrate is provided between a center of the light emitting layer and a center of the semiconductor layer.

公开(公告)号：US12062345B2

公开(公告)日：2024-08-13

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

CPC classification number: G09G3/3607 ,  G09G2310/08 ,  G09G2320/0233 ,  G09G2320/0271

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：US11837182B2

公开(公告)日：2023-12-05

申请号：US17863918

申请日：2022-07-13

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

IPC: G09G3/34 ,  G02F1/133 ,  G09G3/36 ,  G02F1/13357

CPC classification number: G09G3/3426 ,  G02F1/133603 ,  G02F1/133606 ,  G09G3/3648

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：US11711883B2

公开(公告)日：2023-07-25

申请号：US17393474

申请日：2021-08-04

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Minseok Choi ,  Injae Lee ,  Inho Choi ,  Sungyeol Kim ,  Sunghyup Kim ,  Jeonggil Kim ,  Jongbin Park

IPC: H05G2/00 ,  G03F7/20 ,  G03F7/00

CPC classification number: H05G2/006 ,  G03F7/70033 ,  G03F7/7055 ,  H05G2/008

Abstract: A droplet accelerating assembly includes an acceleration chamber extending in a first direction parallel to an ejection direction of the droplet, the acceleration chamber having a first side connected to the droplet generator, a second side opposite the first side in the first direction, the second side including a discharge hole, and a fluid flow path, a pressure controller connected to the fluid flow path of the acceleration chamber, the pressure controller being configured to adjust an internal pressure of the acceleration chamber, an electrifier in the acceleration chamber, the electrifier being configured to electrify the droplet ejected by the droplet generator into an electrified droplet, and an accelerator in the acceleration chamber, the accelerator being configured to accelerate the electrified droplet.