公开(公告)号：US12282226B2

公开(公告)日：2025-04-22

申请号：US18662247

申请日：2024-05-13

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

IPC: G02F1/13357 ,  F21K9/64 ,  F21Y105/16 ,  F21Y115/10

Abstract: A display apparatus is provided that includes: a printed circuit board (PCB); a light emitting diode (LED) chip mounted on the PCB and configured to emit light; an optical dome disposed over and enclosing the LED chip; a distributed Bragg reflector (DBR) layer arranged on an upper surface of the LED chip; a liquid crystal panel configured to block or pass light output from the LED chip; an optical film arranged between the LED chip and the liquid crystal panel, wherein the optical film comprises a quantum dot sheet formed to enhance color reproducibility by making a change in wavelength of light.

公开(公告)号：US12248217B2

公开(公告)日：2025-03-11

申请号：US18540999

申请日：2023-12-15

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

Abstract: 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：US12046209B2

公开(公告)日：2024-07-23

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：US20240204035A1

公开(公告)日：2024-06-20

申请号：US18379404

申请日：2023-10-12

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sungyeol KIM ,  Kyehoon Lee ,  Pujjae Choi ,  Sooyoung Park ,  Chunsoon Park ,  Junsung Choi

IPC: H01L27/15 ,  G02F1/1335 ,  G02F1/13357 ,  H01L25/065

CPC classification number: H01L27/15 ,  G02F1/133603 ,  G02F1/133607 ,  G02F1/133614 ,  G02F1/13362 ,  H01L25/0655 ,  H01L33/06

Abstract: A display apparatus, includes: a liquid crystal panel; and a backlight configured to provide light to the liquid crystal panel, the backlight including a substrate and a light-emitting diode (LED) that is mounted on the substrate. The LED includes a plurality of light-emitting layers configured to emit light of different wavelengths. A wavelength of light emitted from each of the plurality of light-emitting layers is greater than or equal to 430 nm and less than or equal to 480 nm.

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：US20250004330A1

公开(公告)日：2025-01-02

申请号：US18882301

申请日：2024-09-11

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hyukjun JANG ,  Kyehoon Lee

IPC: G02F1/1335 ,  G02F1/13357 ,  H01L25/075 ,  H01L33/54 ,  H05K1/02 ,  H05K1/18

Abstract: Provided is a display apparatus including: a liquid crystal panel; a substrate; a light source module disposed on the substrate. The light source module includes a light emitting diode disposed on the substrate, a feed pad provided on the substrate, an antistatic pad provided on the substrate; and an insulating dome provided on the substrate and covering the light emitting diode. The antistatic pad is divided into two parts by an outline of the insulating dome.

公开(公告)号：US12181745B2

公开(公告)日：2024-12-31

申请号：US18474565

申请日：2023-09-26

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Chunsoon Park ,  Sungyeol Kim ,  Kyehoon Lee

IPC: G02F1/1335 ,  G02F1/13357

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：US11703718B2

公开(公告)日：2023-07-18

申请号：US17749782

申请日：2022-05-20

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hyukjun Jang ,  Kyehoon Lee

IPC: G02F1/1335 ,  G02F1/13357 ,  H01L25/075 ,  H05K1/02 ,  H05K1/18 ,  H01L33/54

CPC classification number: G02F1/133612 ,  G02F1/133605 ,  H01L25/0753 ,  H05K1/0259 ,  G02F1/133603 ,  H01L33/54 ,  H05K1/0274 ,  H05K1/181 ,  H05K2201/10106

Abstract: Provided is a display apparatus including a liquid crystal panel, a substrate, a light source module disposed on the substrate, and a control assembly configured to control the light source module and the liquid crystal panel. The light source module includes a light emitting diode disposed on the substrate, a feed pad provided on the substrate, and at least one antistatic pad provided on the substrate.

公开(公告)号：US20220413341A1

公开(公告)日：2022-12-29

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

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.