Patents by Inventor Lung-Kuan Lai

Lung-Kuan Lai has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20230413594
    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.
    Type: Application
    Filed: September 4, 2023
    Publication date: December 21, 2023
    Inventors: Hui-Ru WU, Jian-Chin LIANG, Jo-Hsiang CHEN, Lung-Kuan LAI, Cheng-Yu TSAI, Hsin-Lun SU, Ting-Kai CHEN
  • Patent number: 11778845
    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.
    Type: Grant
    Filed: May 15, 2022
    Date of Patent: October 3, 2023
    Assignee: Lextar Electronics Corporation
    Inventors: Hui-Ru Wu, Jian-Chin Liang, Jo-Hsiang Chen, Lung-Kuan Lai, Cheng-Yu Tsai, Hsin-Lun Su, Ting-Kai Chen
  • Patent number: 11670748
    Abstract: A light emitting diode (LED) package structure includes a circuit board, a reflective cup, a LED chip and a lens structure. The reflective cup is mounted on the circuit board, wherein the reflective cup and the circuit board collectively form a concave cup with an opening. The reflective cup has a first metal ring in the concave cup. The LED chip is mounted on the circuit board and within the concave cup. The lens structure has a second metal ring configured to join the first metal ring to cover the opening.
    Type: Grant
    Filed: March 8, 2021
    Date of Patent: June 6, 2023
    Assignee: Lextar Electronics Corporation
    Inventors: Chang-Han Chen, Chun-Peng Lin, Lung-Kuan Lai
  • Patent number: 11656497
    Abstract: An optical lens includes an optical transparent body which has an upper surface, a lower surface, a lateral surface and a lower concave portion. The upper surface includes a central upper concave portion, an outwardly-concave curved surface continuous from the central upper concave portion, and an inwardly-concave curved surface continuous from the outwardly-concave curved surface. The lateral surface is connected between the inwardly-concave curved surface and the lower surface. The lower concave portion is recessed from the lower surface.
    Type: Grant
    Filed: May 25, 2021
    Date of Patent: May 23, 2023
    Assignee: Lextar Electronics Corporation
    Inventors: Lung-Kuan Lai, Ting-Kai Chen, Jiun-Hong Lin
  • Publication number: 20220382106
    Abstract: An optical lens includes an optical transparent body which has an upper surface, a lower surface, a lateral surface and a lower concave portion. The upper surface includes a central upper concave portion, an outwardly-concave curved surface continuous from the central upper concave portion, and an inwardly-concave curved surface continuous from the outwardly-concave curved surface. The lateral surface is connected between the inwardly-concave curved surface and the lower surface. The lower concave portion is recessed from the lower surface.
    Type: Application
    Filed: May 25, 2021
    Publication date: December 1, 2022
    Inventors: Lung-Kuan LAI, Ting-Kai CHEN, Jiun-Hong LIN
  • Patent number: 11474289
    Abstract: The present disclosure proposes a light-emitting device and a backlight module thereof. The light-emitting elements includes a substrate, a plurality of light-emitting elements, a light guide layer, a plurality of first light adjustment patterns, and a plurality of second light adjustment patterns. The light-emitting elements are disposed on the substrate. The light guide layer covers the substrate and the light-emitting elements. The first light adjustment patterns are disposed over or embedded within the light guide layer, and each of the first light adjustment patterns is located above each of the light-emitting elements, respectively. The second light adjustment patterns are disposed on or embedded in the light guide layer, and the second light adjustment patterns surround the corresponding first light adjustment patterns, respectively. The first light adjustment patterns and second light adjustment patterns have a refractive index smaller than that of the light guide layer.
    Type: Grant
    Filed: September 21, 2021
    Date of Patent: October 18, 2022
    Assignee: Lextar Electronics Corporation
    Inventors: Lung-Kuan Lai, Jian-Chin Liang
  • Publication number: 20220271251
    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.
    Type: Application
    Filed: May 15, 2022
    Publication date: August 25, 2022
    Inventors: Hui-Ru WU, Jian-Chin LIANG, Jo-Hsiang CHEN, Lung-Kuan LAI, Cheng-Yu TSAI, Hsin-Lun SU, Ting-Kai CHEN
  • Patent number: 11422296
    Abstract: A light-emitting module structure includes a substrate, a plurality of light-emitting diodes (LEDs) disposed on the substrate, and a light-guiding layer covering the light-emitting diodes. The light-guiding layer has an upper surface, the upper surface has a plurality of recesses, and the recesses are above the light-emitting diodes or between the light-emitting diodes. This light-emitting module structure can improve the brightness and uniformity of the light-emitting module.
    Type: Grant
    Filed: December 28, 2020
    Date of Patent: August 23, 2022
    Assignee: Lextar Electronics Corporation
    Inventors: Pei-Song Cai, Lung-Kuan Lai, Shih-Yu Yeh, Guan-Zhi Chen, Hong-Zhi Liu, Kuo-Yen Chang, Ching-Hua Li
  • Publication number: 20220246813
    Abstract: A light-emitting device includes a substrate, a circuit layer, a plurality of conductive connection portions, and a plurality of semiconductor light-emitting sources. The circuit layer on the substrate having a plurality of conductive structures, in which each conductive structure includes at least one bonding pad. An interval is between two adjacent ones of the conductive structures. Each conductive connection portion is correspondingly located on each bonding pad. Each semiconductor light-emitting source crosses each interval and contacts two adjacent ones of the conductive connection portions, such that the semiconductor light-emitting sources are respectively electrically connected to two adjacent ones of the conductive structures.
    Type: Application
    Filed: January 11, 2022
    Publication date: August 4, 2022
    Inventors: Lung-Kuan LAI, Jian-Chin LIANG
  • Patent number: 11367849
    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.
    Type: Grant
    Filed: December 25, 2018
    Date of Patent: June 21, 2022
    Assignee: Lextar Electronics Corporation
    Inventors: Hui-Ru Wu, Jian-Chin Liang, Jo-Hsiang Chen, Lung-Kuan Lai, Cheng-Yu Tsai, Hsin-Lun Su, Ting-Kai Chen
  • Publication number: 20220137280
    Abstract: The present disclosure proposes a light-emitting device and a backlight module thereof. The light-emitting elements includes a substrate, a plurality of light-emitting elements, a light guide layer, a plurality of first light adjustment patterns, and a plurality of second light adjustment patterns. The light-emitting elements are disposed on the substrate. The light guide layer covers the substrate and the light-emitting elements. The first light adjustment patterns are disposed over or embedded within the light guide layer, and each of the first light adjustment patterns is located above each of the light-emitting elements, respectively. The second light adjustment patterns are disposed on or embedded in the light guide layer, and the second light adjustment patterns surround the corresponding first light adjustment patterns, respectively. The first light adjustment patterns and second light adjustment patterns have a refractive index smaller than that of the light guide layer.
    Type: Application
    Filed: September 21, 2021
    Publication date: May 5, 2022
    Inventors: Lung-Kuan LAI, Jian-Chin LIANG
  • Patent number: 11271371
    Abstract: A light emitting device includes an edge emitting laser chip and a reflecting mirror. The edge emitting laser chip has light emitting ports arranged in parallel in a first direction. The light emitting ports emit light beams in a second direction. The reflecting mirror includes a reflecting surface used to reflect the light beams to a third direction. The first, second and third direction are perpendicular to each other. The light beams are emitted to the reflecting surface through the virtual incident plane and project first light spots on the reflecting surface. Each projected light spot has a first axis length in the first direction and a third axis length in the third direction. An interval between two immediately-adjacent light emitting ports is greater than the first axis length of one of the two projected light spots aligned with the two immediately-adjacent light emitting ports.
    Type: Grant
    Filed: August 4, 2020
    Date of Patent: March 8, 2022
    Assignee: Lextar Electronics Corporation
    Inventors: Ting-Kai Chen, Lung-Kuan Lai, Jian-Chin Liang
  • Publication number: 20210288233
    Abstract: A light emitting diode (LED) package structure includes a circuit board, a reflective cup, a LED chip and a lens structure. The reflective cup is mounted on the circuit board, wherein the reflective cup and the circuit board collectively form a concave cup with an opening. The reflective cup has a first metal ring in the concave cup. The LED chip is mounted on the circuit board and within the concave cup. The lens structure has a second metal ring configured to join the first metal ring to cover the opening.
    Type: Application
    Filed: March 8, 2021
    Publication date: September 16, 2021
    Inventors: Chang-Han CHEN, Chun-Peng LIN, Lung-Kuan LAI
  • Publication number: 20210210931
    Abstract: A light emitting device includes an edge emitting laser chip and a reflecting mirror. The edge emitting laser chip has light emitting ports arranged in parallel in a first direction. The light emitting ports emit light beams in a second direction. The reflecting mirror includes a reflecting surface used to reflect the light beams to a third direction. The first, second and third direction are perpendicular to each other. The light beams are emitted to the reflecting surface through the virtual incident plane and project first light spots on the reflecting surface. Each projected light spot has a first axis length in the first direction and a third axis length in the third direction. An interval between two immediately-adjacent light emitting ports is greater than the first axis length of one of the two projected light spots aligned with the two immediately-adjacent light emitting ports.
    Type: Application
    Filed: August 4, 2020
    Publication date: July 8, 2021
    Inventors: Ting-Kai CHEN, Lung-Kuan LAI, Jian-Chin LIANG
  • Publication number: 20210116625
    Abstract: A light-emitting module structure includes a substrate, a plurality of light-emitting diodes (LEDs) disposed on the substrate, and a light-guiding layer covering the light-emitting diodes. The light-guiding layer has an upper surface, the upper surface has a plurality of recesses, and the recesses are above the light-emitting diodes or between the light-emitting diodes. This light-emitting module structure can improve the brightness and uniformity of the light-emitting module.
    Type: Application
    Filed: December 28, 2020
    Publication date: April 22, 2021
    Inventors: Pei-Song CAI, Lung-Kuan LAI, Shih-Yu YEH, Guan-Zhi CHEN, Hong-Zhi LIU, Kuo-Yen CHANG, Ching-Hua LI
  • Patent number: 10908344
    Abstract: A light-emitting module structure includes a substrate, a plurality of light-emitting diodes (LEDs) disposed on the substrate, and a light-guiding layer covering the light-emitting diodes. The light-guiding layer has an upper surface, the upper surface has a plurality of recesses, and the recesses are above the light-emitting diodes or between the light-emitting diodes. This light-emitting module structure can improve the brightness and uniformity of the light-emitting module.
    Type: Grant
    Filed: April 3, 2019
    Date of Patent: February 2, 2021
    Assignee: LEXTAR ELECTRONICS CORPORATION
    Inventors: Pei-Song Cai, Lung-Kuan Lai, Shih-Yu Yeh, Guan-Zhi Chen, Hong-Zhi Liu, Kuo-Yen Chang, Ching-Hua Li
  • Patent number: 10825970
    Abstract: An embodiment of present disclosure discloses a light-emitting device which includes a light-emitting unit, a transparent covering structure, a first reflective structure, a second reflective structure, and a wavelength conversion structure. The light-emitting unit includes a light-emitting surface, a bottom surface opposite to the light-emitting surface, a side surface, a first conductive electrode, and a second conductive electrode. The first conductive electrode and the second conductive electrode are located on the bottom surface. The transparent covering structure covers the light-emitting surface and the side surface. The first reflective structure surrounds the transparent covering structure. The second reflective structure is disposed under the first reflective structure and surrounds the first conductive electrode and the second conductive electrode. The wavelength conversion structure is disposed on the first reflective structure and the transparent covering structure.
    Type: Grant
    Filed: February 24, 2017
    Date of Patent: November 3, 2020
    Assignee: Epistar Corporation
    Inventors: Min-Hsun Hsieh, Ming-Chi Hsu, Ching-Tai Cheng, Yu-Hsi Sung, Lung-Kuan Lai, Yih-Hua Renn
  • Patent number: 10720559
    Abstract: A light-emitting diode (LED) device and a manufacturing method thereof are provided. The LED device includes a frame body, a first conductive extension structure, a second conductive extension structure, and a LED chip. The frame body includes an upper surface, a bottom, a recess on the opposite side of the bottom, and a first side surface and a second side surface opposite to each other. The first and second conductive extension structures are located in the frame body. The first and second conductive extension structures extend from the first side surface to the second side surface of the frame body. The frame body encapsulates a left side surface, a right side surface, a top surface, and a bottom surface of each of the first and second conductive extension structures. The LED chip is disposed in the recess and includes a first conductive pad and a second conductive pad.
    Type: Grant
    Filed: October 7, 2018
    Date of Patent: July 21, 2020
    Assignee: LEXTAR ELECTRONICS CORPORATION
    Inventors: Lung-Kuan Lai, Pei-Song Cai, Jian-Chin Liang, Hao-Chung Chan, Hong-Zhi Liu
  • Patent number: 10714666
    Abstract: A light-emitting device includes a light body having an internal electrode layer, and a conductive layer. The conductive layer has a first portion formed on the internal electrode layer and overlapping the light body in a first direction, and a second portion overlapping the light body in a second direction. The first direction is perpendicular to the second direction.
    Type: Grant
    Filed: March 11, 2019
    Date of Patent: July 14, 2020
    Assignee: Epistar Corporation
    Inventors: Lung-Kuan Lai, Ching-Tai Cheng, Yih-Hua Renn, Min-Hsun Hsieh, Chun-Hung Liu, Shih-An Liao, Ming-Chi Hsu, Yu Chen Liao
  • Patent number: D995454
    Type: Grant
    Filed: October 20, 2020
    Date of Patent: August 15, 2023
    Assignee: Lextar Electronics Corporation
    Inventors: Ting-Kai Chen, Lung-Kuan Lai