公开(公告)号：US20220398973A1

公开(公告)日：2022-12-15

申请号：US17446459

申请日：2021-08-30

Applicant: Lextar Electronics Corporation

Inventor： Chih-Hao LIN ,  Chien-Nan YEH ,  Jo-Hsiang CHEN ,  Shih-Lun LAI

IPC: G09G3/32 ,  G09G3/20

Abstract: A display device includes a plurality of sub-pixels. The sub-pixels include a first sub-pixel and a second sub-pixel. The first sub-pixel includes a first light emitting element and a first control circuit. The first control circuit is configured to provide a first driving current to the first light emitting element. The second sub-pixel includes a second light emitting element and a second control circuit. The second control circuit is configured to provide a second driving current to the second light emitting element. The first control circuit and the second control circuit are configured to differently control pulse amplitude of the first driving current and pulse amplitude of the second driving current, such that both of the first light emitting element and the second light emitting element emit at a target wavelength or a color point range (e.g. +/−1.5˜2 nm).

公开(公告)号：US20220254973A1

公开(公告)日：2022-08-11

申请号：US17666513

申请日：2022-02-07

Applicant: Lextar Electronics Corporation

Inventor： Chih-Hao LIN ,  Wei-Yuan MA ,  Jo-Hsiang CHEN

IPC: H01L33/62 ,  H01L33/54 ,  H01L27/15 ,  H01L33/00

Abstract: A light emitting element package includes a first substrate, at least one light emitting element, an encapsulation layer, and a plurality of conductive pads. The first substrate has an upper surface and a lower surface opposite to each other, in which an edge of the lower surface has a notch. The at least one light emitting element is disposed on the upper surface of the first substrate, in which the light emitting element has a positive electrode and a negative electrode. The encapsulation layer covers the light emitting element. The plurality of conductive pads are disposed on the lower surface of the first substrate and electrically connected to the positive electrode and the negative electrode of the light emitting element, respectively.

公开(公告)号：US20200235075A1

公开(公告)日：2020-07-23

申请号：US16252690

申请日：2019-01-20

Applicant: Lextar Electronics Corporation

Inventor： Cheng-Yu TSAI ,  Jian-Chin LIANG ,  Jo-Hsiang CHEN

IPC: H01L25/075 ,  G02B1/11 ,  H01L33/48 ,  H01L33/58

Abstract: A display device includes a substrate, a light-emitting member, and an anti-reflective glass layer. The light-emitting member is on the substrate. The anti-reflective glass layer is over the light-emitting member, and the anti-reflective glass layer has a transmittance of 40-95%. The anti-reflective glass layer includes a glass layer and a light-absorbing layer. The glass layer has a rough top surface and a haze of 70-80%. The light-absorbing layer is on the rough top surface of glass layer.

公开(公告)号：US20200067009A1

公开(公告)日：2020-02-27

申请号：US16232041

申请日：2018-12-25

Applicant: Lextar Electronics Corporation

Inventor： Hui-Ru WU ,  Jian-Chin LIANG ,  Jo-Hsiang CHEN ,  Lung-Kuan LAI ,  Cheng-Yu TSAI ,  Hsin-Lun SU ,  Ting-Kai CHEN

IPC: H01L51/50 ,  H01L51/52 ,  H01L33/60

Abstract: A pixel array package structure includes: a substrate; a pixel array disposed on the substrate, in which the pixel array includes a plurality of light emitting diode chips, and the light emitting diode chips include at least one red diode chip, at least one green diode chip, at least one blue diode chip, and a combination thereof; a reflective layer disposed on the substrate and between any two adjacent of the light emitting diode chips; a light-absorbing layer disposed on the reflective layer and surrounding the pixel array; and a light-transmitting layer disposed on the pixel array, the reflective layer, and the light-absorbing layer, in which the light-transmitting layer has an upper surface and a lower surface opposite thereto, and the lower surface is in contact with the pixel array, and the upper surface has a roughness of 0.005 mm to 0.1 mm.

公开(公告)号：US20250107306A1

公开(公告)日：2025-03-27

申请号：US18976386

申请日：2024-12-11

Applicant: Lextar Electronics Corporation

Inventor： Chih-Hao LIN ,  Wei-Yuan MA ,  Jo-Hsiang CHEN

IPC: H01L33/62 ,  H01L27/15 ,  H01L33/00 ,  H01L33/54

Abstract: A light emitting element package includes a first substrate, at least one light emitting element, an encapsulation layer, and a plurality of conductive pads. The first substrate has an upper surface and a lower surface opposite to each other, in which an edge of the lower surface has a notch. The at least one light emitting element is disposed on the upper surface of the first substrate, in which the light emitting element has a positive electrode and a negative electrode. The encapsulation layer covers the light emitting element. The plurality of conductive pads are disposed on the lower surface of the first substrate and electrically connected to the positive electrode and the negative electrode of the light emitting element, respectively.

公开(公告)号：US20230238362A1

公开(公告)日：2023-07-27

申请号：US17584799

申请日：2022-01-26

Applicant: Lextar Electronics Corporation

Inventor： Jian-Chin LIANG ,  Chih-Hao LIN ,  Wei-Yuan MA ,  Jo-Hsiang CHEN

IPC: H01L25/075 ,  H01L33/62 ,  H01L33/00

CPC classification number: H01L25/0753 ,  H01L33/005 ,  H01L33/62 ,  H01L2933/0066

Abstract: A light-emitting diode (LED) display device, including a substrate, a de-mura region, a plurality of mounting blocks, a first LED chip array and a second LED chip array, is disclosed. The substrate includes a first region and a second region adjacent to each other. The de-mura region includes part of the first region and part of the second region. The mounting blocks are arranged in the first and the second region as an array, each mounting block including a first and a second mounting part. The first and the second mounting part are connected in parallel. The first LED chip array includes multiple first LED chips. The second LED chip array includes multiple second LED chips. Each first mounting part is arranged on the first side of the corresponding mounting block, and each second mounting part is arranged on the second side of the corresponding mounting block.

公开(公告)号：US20230111709A1

公开(公告)日：2023-04-13

申请号：US17822140

申请日：2022-08-25

Applicant: Lextar Electronics Corporation

Inventor： Chih-Hao LIN ,  Wei-Yuan MA ,  Jo-Hsiang CHEN

IPC: H01L25/13

Abstract: A display device includes a plurality of first packages and a plurality of second packages. The first packages are arranged on the substrate and each of the first packages includes a plurality of first light-emitting chips. The second packages are arranged on the substrate and each of the second packages includes a plurality of second light-emitting chips. The first packages and the second packages are alternately arranged in a first direction, and an arrangement of the first light-emitting chips of the first packages is different from an arrangement of the second light-emitting chips of the second packages.

公开(公告)号：US20220093577A1

公开(公告)日：2022-03-24

申请号：US17100933

申请日：2020-11-22

Applicant: Lextar Electronics Corporation

Inventor： Chih-Hao LIN ,  Jian-Chin LIANG ,  Chien-Nan YEH ,  Shih-Lun LAI ,  Jo-Hsiang CHEN

IPC: H01L25/16

Abstract: Disclosed is a light-emitting array structure having a substrate, a plurality of light-emitting pixel units, a plurality of first signal wires, a plurality of second signal wires, and an encapsulating layer. The light-emitting pixel units are arranged in array on the substrate. Each light-emitting pixel unit includes a driving chip, a first flat layer, a first redistribution layer, a second flat layer, a second redistribution layer, and a light-emitting diode. Each first signal wire is electrically connected to a corresponding one of the first redistribution layers and extends in a first direction. The second signal wires extend in a level different from the first signal wires. Each second signal wire is electrically connected to a corresponding one of the second redistribution layers and extends in a second direction different from the first direction. The encapsulating layer covers the light-emitting pixel units, the first and second signal wires, and the substrate.

公开(公告)号：US20230413594A1

公开(公告)日：2023-12-21

申请号：US18460673

申请日：2023-09-04

Applicant: Lextar Electronics Corporation

Inventor： Hui-Ru WU ,  Jian-Chin LIANG ,  Jo-Hsiang CHEN ,  Lung-Kuan LAI ,  Cheng-Yu TSAI ,  Hsin-Lun SU ,  Ting-Kai CHEN

IPC: H10K50/125 ,  H01L33/60 ,  H10K50/856 ,  H10K50/86 ,  H10K50/80

CPC classification number: H10K50/125 ,  H01L33/60 ,  H10K50/856 ,  H10K50/865 ,  H10K50/868

Abstract: A pixel array package structure includes: a substrate; a pixel array disposed on the substrate, in which the pixel array includes a plurality of light emitting diode chips, and the light emitting diode chips include at least one red diode chip, at least one green diode chip, at least one blue diode chip, and a combination thereof; a reflective layer disposed on the substrate and between any two adjacent of the light emitting diode chips; a light-absorbing layer disposed on the reflective layer and surrounding the pixel array; and a light-transmitting layer disposed on the pixel array, the reflective layer, and the light-absorbing layer, in which the light-transmitting layer has an upper surface and a lower surface opposite thereto, and the lower surface is in contact with the pixel array, and the upper surface has a roughness of 0.005 mm to 0.1 mm.

公开(公告)号：US20230178523A1

公开(公告)日：2023-06-08

申请号：US17821210

申请日：2022-08-22

Applicant: Lextar Electronics Corporation

Inventor： Chih-Hao LIN ,  Wei-Yuan MA ,  Jo-Hsiang CHEN

IPC: H01L25/075

CPC classification number: H01L25/0753

Abstract: A light-emitting diode display panel includes a driving substrate, and a first light-emitting region and a second light-emitting region disposed on the driving substrate. The first light-emitting region has a first region and a second region adjacent to the first region in the first direction. The second light-emitting region is adjacent to the first light-emitting region and has a first corresponding region. The second region is between the first region and the first corresponding region. The light-emitting diode display panel further includes pixels disposed in the first region, the second region, and the first corresponding region. Each pixel includes a first light-emitting unit. The first pitch is between the first light-emitting units in the first region and in the second region. The second pitch is between the first light-emitting units in the second region and the first corresponding region. The first pitch is shorter than the second pitch.