Patents Assigned to Lextar Electronics Corporation
  • Patent number: 12284853
    Abstract: A light emitting diode (LED) package structure include an electrically-insulated frame, a trough, a LED chip, a fluorescent colloid and at least two spacing members. The electrically-insulated frame has a surface with four corners. The trough is recessed in the surface. The LED chip is located in the trough. The fluorescent colloid is filled within the trough to cover the LED chip. The spacing members protrude from two of the four corners on the surface, wherein a glue escape gap is defined between each spacing member and a boundary of the trough.
    Type: Grant
    Filed: December 21, 2023
    Date of Patent: April 22, 2025
    Assignee: Lextar Electronics Corporation
    Inventor: Chien-Hsin Tu
  • Patent number: 12267960
    Abstract: An electronic component sub-mount includes a body having a top surface, a bottom surface, and a supporting surface. The top and bottom surfaces are located on opposite sides of the body. The supporting surface is located on one side of the body, and an angle that is not equal to 0 degrees is formed between the supporting surface and the bottom surface. A first conductive layer is disposed on the bottom surface and includes multiple first conductive lines. A second conductive layer is disposed on the supporting surface, extending to the top surface, and includes multiple second conductive lines. The second conductive lines on the supporting surface have a first pin layout, and the second conductive lines on the top surface have a second pin layout different from the first pin layout. The second pin layout matches the pin layout of first conductive lines on the bottom surface.
    Type: Grant
    Filed: October 18, 2022
    Date of Patent: April 1, 2025
    Assignee: LEXTAR ELECTRONICS CORPORATION
    Inventor: Ming-Jing Lee
  • Patent number: 12206059
    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.
    Type: Grant
    Filed: February 7, 2022
    Date of Patent: January 21, 2025
    Assignee: Lextar Electronics Corporation
    Inventors: Chih-Hao Lin, Wei-Yuan Ma, Jo-Hsiang Chen
  • Patent number: 12152771
    Abstract: An optical structure is provided. The optical structure includes a substrate and a light-emitting element disposed on the substrate. The optical structure also includes a cap disposed on the substrate and covering the light-emitting element. The cap has a top portion and a sidewall connected to the top portion. The optical structure further includes a first micro-structure disposed on a first side of the top portion facing the light-emitting element. The first micro-structure is periodically arranged.
    Type: Grant
    Filed: January 26, 2024
    Date of Patent: November 26, 2024
    Assignee: Lextar Electronics Corporation
    Inventors: Wei-Chung Cheng, Yun-Yi Tien, Jung-Cheng Chang, Min-Chen Chiu
  • Patent number: 12119427
    Abstract: The light emitting device includes a growth substrate, a light-emitting semiconductor structure, conductive pillars, an insulating layer, and first and second electrodes. The light-emitting semiconductor structure includes a first-type semiconductor layer, a light-emitting layer and a second-type semiconductor layer disposed on the growth substrate from top to bottom. The conductive pillars are disposed in the light-emitting semiconductor structure. The conductive pillars penetrates is in contact with the second-type semiconductor layer and electrically connected to the substrate. A first portion of the insulating layer is disposed between the first-type semiconductor layer and the substrate, and a second portion of the insulating layer electrically insulates the first-type semiconductor layer and the light emitting-layer from the conductive pillars. The first electrode is electrically connected to the first-type semiconductor layer and electrically insulated from the conductive pillars.
    Type: Grant
    Filed: June 16, 2023
    Date of Patent: October 15, 2024
    Assignee: Lextar Electronics Corporation
    Inventors: Jih-Kang Chen, Shih-Wei Yang, Tsai-Chen Sung
  • Patent number: 12113152
    Abstract: The light emitting device includes a substrate, a light-emitting semiconductor structure, conductive pillars, an insulating layer, and first and second electrodes. The light-emitting semiconductor structure includes a first-type semiconductor layer, a light-emitting layer and a second-type semiconductor layer disposed on the substrate from bottom to top. The conductive pillars are disposed in the light-emitting semiconductor structure. The conductive pillars penetrates is in contact with the second-type semiconductor layer and electrically connected to the substrate. A first portion of the insulating layer is disposed between the first-type semiconductor layer and the substrate, and a second portion of the insulating layer electrically insulates the first-type semiconductor layer and the light emitting-layer from the conductive pillars. The first electrode is electrically connected to the first-type semiconductor layer and electrically insulated from the conductive pillars.
    Type: Grant
    Filed: May 2, 2021
    Date of Patent: October 8, 2024
    Assignee: Lextar Electronics Corporation
    Inventors: Jih-Kang Chen, Shih-Wei Yang, Tsai-Chen Sung
  • Patent number: 12094861
    Abstract: Disclosed is a light-emitting array structure having a substrate, a plurality of light-emitting pixel units, a plurality of first and 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.
    Type: Grant
    Filed: May 6, 2021
    Date of Patent: September 17, 2024
    Assignee: Lextar Electronics Corporation
    Inventors: Chih-Hao Lin, Jian-Chin Liang, Chien-Nan Yeh, Shih-Lun Lai, Jo-Hsiang Chen
  • Patent number: 12087887
    Abstract: The wavelength conversion material includes a general formula (I) MmAaBbCcDdEe:ESxREy and satisfies a condition (II) that a proportion of D for the wavelength conversion material greater than or equal to 50%. M is selected from a group consisting of Ca, Sr and Ba. A is selected from a group consisting of elements Mg, Mn, Zn and Cd. B is selected from a group consisting of elements B, Al, Ga and In. C is selected from a group consisting of Si, Ge, Ti and Hf. D is selected from a group consisting of elements 0, S and Se. E is selected from a group consisting of elements N and P. ES is selected from a group consisting of divalent Eu, Sm and Yb. RE is selected from a group consisting of trivalent Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er and Tm.
    Type: Grant
    Filed: September 26, 2020
    Date of Patent: September 10, 2024
    Assignee: Lextar Electronics Corporation
    Inventors: Yi-Ting Tsai, Hung-Chia Wang, Chia-Chun Hsieh, Hung-Chun Tong, Yu-Chun Lee, Tzong-Liang Tsai
  • Patent number: 12038156
    Abstract: A light source module is provided. The light source module includes a lead frame, a light source, a cup part, and a reflector. The light source is disposed on the lead frame, wherein the light source provides a light. The cup part is disposed on the lead frame, wherein the cup part includes an opening, a plurality of thick-wall portions and a plurality of thin-wall portions. The thick-wall portions and the thin-wall portions surround the light source and define a space. The reflector covers the opening. At least a portion of the light is reflected by the reflector, and is emitted through the thick-wall portions and the thin-wall portions.
    Type: Grant
    Filed: May 31, 2023
    Date of Patent: July 16, 2024
    Assignee: Lextar Electronics Corporation
    Inventors: Shu-Wei Chen, Jia-Jhang Kuo, Ching-Chi Chiang
  • Patent number: 12040434
    Abstract: A diode package structure includes a substrate, at least one diode chip and an opaque encapsulating layer. The substrate has an electrically conductive layer. At least one diode chip is mounted on the substrate and electrically connected to the electrically conductive layer. The opaque encapsulating layer has a cap portion and a sidewall portion, wherein the sidewall portion is connected to and surrounds the substrate to jointly form a concave structure, the cap portion is connected between a sidewall of the diode chip and the sidewall portion, wherein a first contact vertex of the cap portion and the sidewall of the diode chip is higher than a second contact vertex of the cap portion and the sidewall portion.
    Type: Grant
    Filed: September 13, 2021
    Date of Patent: July 16, 2024
    Assignee: Lextar Electronics Corporation
    Inventors: Yu-Jing Fang, Hsiang-Chun Hsu, Cheng-Ping Chang
  • Patent number: 11984544
    Abstract: A light-emitting element includes light-emitting diode (LED) chip with a first and second surface opposite to each other, and sidewalls connecting the first and second surface. The light-emitting element further includes a first insulation layer disposed on and covering the first surface and one part of the sidewalls. The light-emitting element further includes multiple connection pads physically contact the first surface and protruding from the first insulation layer, as well as a second insulation layer disposed on and covering the second surface and the other part of the sidewalls. The second insulation layer includes a cover portion and protrusion portions. The cover portion covers the whole second surface and the other part of the sidewalls. The protrusion portions are disposed on the sidewalls, protrude from the cover portion and extend laterally.
    Type: Grant
    Filed: August 27, 2021
    Date of Patent: May 14, 2024
    Assignee: Lextar Electronics Corporation
    Inventors: Jih-Kang Chen, Shiou-Yi Kuo
  • Patent number: 11978832
    Abstract: A light emitting diode (LED) package includes a substrate, at least one micro LED chip, a black material layer, and a transparent material layer. The substrate has a width ranging from 100 micrometers to 1000 micrometers. The at least one micro LED chip is electrically mounted on a top surface of the substrate and has a width ranging from 1 micrometer to 100 micrometers. The black material layer covers the top surface of the substrate to expose the at least one micro LED chip. The transparent material layer covers the at least one micro LED chip and the black material layer.
    Type: Grant
    Filed: February 21, 2023
    Date of Patent: May 7, 2024
    Assignee: Lextar Electronics Corporation
    Inventors: Te-Chung Wang, Shiou-Yi Kuo
  • Patent number: 11961951
    Abstract: A light emitting diode device includes a substrate, a conductive via, first and second conductive pads, a driving chip, a flat layer, a redistribution layer, a light emitting diode, and an encapsulating layer. The substrate has a first surface and a second surface opposite thereto. The conductive via penetrates from the first surface to the second surface. The first and second conductive pads are respectively disposed on the first and second surface and in contact with the conductive via. The driving chip is disposed on the first surface. The flat layer is disposed over the first surface and covers the driving chip and the first conductive pad. The redistribution layer is disposed on the flat layer and electrically connects to the driving chip. The light emitting diode is flip-chip bonded to the redistribution layer. The encapsulating layer covers the redistribution layer and the light emitting diode.
    Type: Grant
    Filed: July 22, 2021
    Date of Patent: April 16, 2024
    Assignee: Lextar Electronics Corporation
    Inventors: Chih-Hao Lin, Jian-Chin Liang, Shih-Lun Lai, Jo-Hsiang Chen
  • Patent number: 11949056
    Abstract: The light emitting diode packaging structure includes a flexible substrate, a first adhesive layer, micro light emitting elements, a conductive pad, a redistribution layer, and an electrode pad. The first adhesive layer is disposed on the flexible substrate. The micro light emitting elements are disposed on the first adhesive layer and have a first surface facing to the first adhesive layer and an opposing second surface. The micro light emitting elements include a red micro light emitting element, a blue micro light emitting element, and a green micro light emitting element. The conductive pad is disposed on the second surface of the micro light emitting element. The redistribution layer covers the micro light emitting elements and the conductive pad. The electrode pad is disposed on the redistribution layer and is electrically connected to the circuit layer. A thickness of the flexible substrate is less than 100 um.
    Type: Grant
    Filed: April 20, 2023
    Date of Patent: April 2, 2024
    Assignee: Lextar Electronics Corporation
    Inventors: Chih-Hao Lin, Jo-Hsiang Chen, Shih-Lun Lai, Min-Che Tsai, Jian-Chin Liang
  • Patent number: 11948497
    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).
    Type: Grant
    Filed: August 30, 2021
    Date of Patent: April 2, 2024
    Assignee: Lextar Electronics Corporation
    Inventors: Chih-Hao Lin, Chien-Nan Yeh, Jo-Hsiang Chen, Shih-Lun Lai
  • Patent number: 11906844
    Abstract: A light emitting device includes a substrate, a conductive layer, first and second reflective layers, a light emitting element, and an encapsulation layer. The conductive layer is disposed on the substrate. The first reflective layer covers the conductive layer and has an opening exposing a portion of the conductive layer. The light emitting element is disposed in the opening and electrically connects to the conductive layer. The second reflective layer is disposed on the first reflective layer and surrounds the light emitting element. The second reflective layer has an outer diameter. A top surface of the second reflective layer is lower than a top surface of the light emitting element. The encapsulation layer covers the light emitting element. There is a height between a highest point of the encapsulation layer and an upper surface of the first reflective layer. The encapsulating layer is directly contact with the outer diameter.
    Type: Grant
    Filed: January 6, 2023
    Date of Patent: February 20, 2024
    Assignee: Lextar Electronics Corporation
    Inventors: Yun-Yi Tien, Yu-Chang Wu, Yu-Li Chang
  • Patent number: 11894503
    Abstract: A light emitting diode device includes a substrate, a frame, an LED die and a transparent layer. The frame is located on the substrate. The frame and the substrate collectively define a concave portion. The frame has a light reflectivity ranging from 20% to 40%. The LED die is located on the substrate and within the concave portion. The transparent layer is filled into the concave portion and covering the LED die, wherein the LED die has a side-emitting surface and a top-emitting surface, the side-emitting surface has a luminous intensity greater than that of the top-emitting surface.
    Type: Grant
    Filed: November 24, 2022
    Date of Patent: February 6, 2024
    Assignee: Lextar Electronics Corporation
    Inventors: Shu-Wei Chen, Ching-Huai Ni, Kuo-Wei Huang, Jia-Jhang Kuo
  • Patent number: 11894495
    Abstract: A micro LED structure includes a first micro LED chip having opposite first and second sides, a second micro LED chip adjacent to the first side of the second micro LED chip, a third micro LED chip adjacent to the first side of the first micro LED chip, and optical structures respectively over the first micro LED chip, the second micro LED chip and the third micro LED chip. Each of the first, second and third micro LED chip includes a semiconductor stack, a metal pad and a reflective coating layer. The semiconductor stack includes a first semiconductor layer, an active layer in contact with the first semiconductor layer, and a second semiconductor layer in contact with the active layer. The metal pad is in contact with the first semiconductor layer, and the reflective coating layer is disposed around sidewalls of the semiconductor stack.
    Type: Grant
    Filed: June 2, 2021
    Date of Patent: February 6, 2024
    Assignee: Lextar Electronics Corporation
    Inventors: Kai-Hung Cheng, Fu-Han Ho
  • Patent number: 11888099
    Abstract: A light emitting diode (LED) package structure include an electrically-insulated frame, a trough, a LED chip, a fluorescent colloid and at least two spacing members. The electrically-insulated frame has a surface with four corners. The trough is recessed in the surface. The LED chip is located in the trough. The fluorescent colloid is filled within the trough to cover the LED chip. The spacing members protrude from two of the four corners on the surface, wherein a glue escape gap is defined between each spacing member and a boundary of the trough.
    Type: Grant
    Filed: July 28, 2021
    Date of Patent: January 30, 2024
    Assignee: Lextar Electronics Corporation
    Inventor: Chien-Hsin Tu
  • Patent number: 11879084
    Abstract: In the present disclosure embodiments, a phosphate phosphor including an activation center of trivalent chromium and a light emitting device are provided. The light emitting device includes a light source and the above mentioned phosphate phosphor, such that the phosphate phosphor is excited by the light source and emits a wide spectrum of the infrared light. The light emitting device with wide emission spectrum of the infrared light may be widely applied in detecting devices.
    Type: Grant
    Filed: November 25, 2020
    Date of Patent: January 23, 2024
    Assignee: Lextar Electronics Corporation
    Inventors: Chun-Che Lin, Chun-Han Lu, Yi-Ting Tsai, Yu-Chun Lee, Tzong-Liang Tsai