Patents by Inventor Ching-Tai Cheng

Ching-Tai Cheng 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: 20200328330
    Abstract: A LED package comprises an LED chip, a reflective structure which encloses the LED chip, a wavelength conversion structure placed on the LED chip, and an absorbing structure which encloses or is placed on the reflective structure.
    Type: Application
    Filed: April 10, 2020
    Publication date: October 15, 2020
    Inventors: Tsung-Hong LU, Pao-Yu LIAO, Ching-Tai CHENG
  • Patent number: 10777764
    Abstract: A light-emitting device includes a light-emitting element having a first electrode and a second electrode, a carrier, a first contact and a second contact. The first contact is arranged on the carrier and is electrically connected to the first electrode. The second contact is arranged on the carrier and is electrically connected to the second electrode. The first contact has a contour similar with that of the first electrode. The second contact has a contour similar with that of the second electrode.
    Type: Grant
    Filed: December 26, 2018
    Date of Patent: September 15, 2020
    Assignee: Epistar Corporation
    Inventors: Yih-Hua Renn, Shau-Yi Chen, Ching-Tai Cheng, Aurelien Gauthier-Brun
  • Patent number: 10741734
    Abstract: The application discloses a light-emitting device including a carrier, a light-emitting element and a connecting structure. The carrier includes a first connecting portion and a first necking portion extended from the first connecting portion. The first connecting portion has a first width, and the first necking portion has a second width. The second width is less than the first width. The light-emitting element includes a first light-emitting layer being able to emit a first light and a first contacting electrode formed under the first light-emitting layer. The first contacting electrode is corresponded to the first connecting portion. The connecting structure includes a first electrical connecting portion and a protecting portion surrounding the first electrical connecting portion. The first electrical connecting portion is electrically connected to the first connecting portion and the first contacting electrode.
    Type: Grant
    Filed: January 30, 2019
    Date of Patent: August 11, 2020
    Assignee: EPISTAR CORPORATION
    Inventors: Ching-Tai Cheng, Shau-Yi Chen, Yih-Hua Renn, Wei-Shan Hu, Pei-Hsuan Lan
  • 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
  • Publication number: 20200144462
    Abstract: A light-emitting device comprises a light-emitting element, a covering structure, a quantum dot material block, and an adhesive structure is disclosed. The covering structure has a depressed part. The quantum dot material block is filled into the depressed part and enclosed by the light-emitting element and the covering structure. The light-emitting element, the covering structure, and the quantum dot material block are bonded together through the adhesive structure. Since the quantum dot material block is enclosed by the covering structure and the light-emitting element, the outer moisture and oxygen are blocked by the covering structure and the light-emitting element from the quantum dot material block, the decreasing emitting efficiency of the quantum dot material is further alleviated.
    Type: Application
    Filed: November 5, 2019
    Publication date: May 7, 2020
    Inventors: Tsung-Hong Lu, Ching-Tai Cheng
  • Publication number: 20200144467
    Abstract: A light-emitting device includes a light-emitting element, an electrode, a reflective layer and a transparent layer. The reflective layer surrounds the light-emitting element and has an inner surface including a first portion and a second portion. There is a first angle included between the first portion and the first lateral surface, there is a second angle included between the second portion and the first lateral surface, and the first angle is larger than the second angle. The transparent layer includes an outer portion and an inner portion. The outer portion is formed above the upper surface and the inner portion is formed between the reflective layer and the first lateral surface. The outer portion includes wavelength conversion material and the inner portion does not comprise the wavelength conversion material.
    Type: Application
    Filed: November 7, 2018
    Publication date: May 7, 2020
    Inventors: Pei-Hsuan LAN, Ching-Tai CHENG
  • Patent number: 10522721
    Abstract: A light-emitting device includes a light-emitting element, a wavelength conversion layer, a light pervious element and a light-reflecting enclosure. The light-emitting element includes a top surface, a bottom surface, and a side surface between the top surface and the bottom surface. The wavelength conversion layer covers the top surface of the light-emitting element, and includes a plurality of wavelength conversion particles having an equivalent particle diameter D50. The light pervious element includes a recess structure and an outer wall. The light-reflecting enclosure surrounds the outer wall. The D50 of the wavelength conversion particles is not great than 10 ?m. The recess structure is laterally overlapped with the side surface of the light-emitting element and the wavelength conversion layer.
    Type: Grant
    Filed: July 27, 2018
    Date of Patent: December 31, 2019
    Assignee: EPISTAR CORPORATION
    Inventors: Ching-Tai Cheng, Chun-Hua Shih, Yih-Hua Renn
  • Publication number: 20190341523
    Abstract: A light-emitting element having a light-emitting unit, a transparent layer and a wavelength conversion layer formed on the transparent layer. The transparent layer covers the light-emitting unit. The wavelength conversion layer includes a phosphor layer having a phosphor and a stress release layer without the phosphor.
    Type: Application
    Filed: July 17, 2019
    Publication date: November 7, 2019
    Inventors: Ching-Tai CHENG, Ju-Lien KUO, Min-Hsun HSIEH, Shau-Yi CHEN, Shih-An LIAO, Jhih-Hao CHEN
  • Patent number: 10403789
    Abstract: This disclosure discloses a light-emitting element having a light-emitting unit, a transparent layer and a wavelength conversion layer formed on the transparent layer. The transparent layer covers the light-emitting unit. The wavelength conversion layer includes a phosphor layer having a phosphor and a stress release layer without the phosphor.
    Type: Grant
    Filed: February 3, 2017
    Date of Patent: September 3, 2019
    Assignee: Epistar Corporation
    Inventors: Ching-Tai Cheng, Ju-lien Kuo, Min-Hsun Hsieh, Shau-Yi Chen, Shih-An Liao, Jhih-Hao Chen
  • Patent number: 10381536
    Abstract: A light-emitting device includes a light-emitting element, a light pervious layer, an electrode defining layer, a first soldering pad and a second soldering pad. The light-emitting element has an upper surface, a bottom surface, and a lateral surface arranged between the upper surface and the bottom surface. The light pervious layer covers the upper surface and the lateral surface. The electrode defining layer covers a part of the light pervious layer. The first soldering pad and the second soldering pad are surrounded by the electrode defining layer. A gap is located between the first soldering pad and the second soldering pad while the gap remains substantially constant.
    Type: Grant
    Filed: September 8, 2017
    Date of Patent: August 13, 2019
    Assignee: EPISTAR CORPORATION
    Inventors: Ching-Tai Cheng, Lung-Kuan Lai, Yih-Hua Renn, Min-Hsun Hsieh
  • Publication number: 20190237637
    Abstract: The application discloses a light-emitting device including a carrier, a light-emitting element and a connecting structure. The carrier includes a first connecting portion and a first necking portion extended from the first connecting portion. The first connecting portion has a first width, and the first necking portion has a second width. The second width is less than the first width. The light-emitting element includes a first light-emitting layer being able to emit a first light and a first contacting electrode formed under the first light-emitting layer. The first contacting electrode is corresponded to the first connecting portion. The connecting structure includes a first electrical connecting portion and a protecting portion surrounding the first electrical connecting portion. The first electrical connecting portion is electrically connected to the first connecting portion and the first contacting electrode.
    Type: Application
    Filed: January 30, 2019
    Publication date: August 1, 2019
    Inventors: Ching-Tai CHENG, Shau-Yi CHEN, Yih-Hua RENN, Wei-Shan HU, Pei-Hsuan LAN
  • Publication number: 20190221728
    Abstract: An embodiment of present disclosure discloses a light-emitting device which includes a first light-emitting unit, a second light-emitting unit, a first optic structure, a second optic structure, a first light-transmitting structure, a second light-transmitting structure, and a light-blocking structure. The first optic structure covers a top surface and a side surface of the first light-emitting unit, the second optic structure covers a top surface and a side surface of the second light-emitting unit. The first light-transmitting structure covers the first optic structure. The second light-transmitting structure covers the second optic structure. The light-blocking structure surrounds the first light-emitting unit and the second light-emitting unit, and covers the side surfaces of the first optic structure, the second optic structure, the first light-transmitting structure and the second light-transmitting structure.
    Type: Application
    Filed: January 17, 2019
    Publication date: July 18, 2019
    Inventors: Jen-Chieh YU, Yih-Hua RENN, Hsin-Mao LIU, Lung-Kuan LAI, Ching-Tai CHENG
  • Publication number: 20190207069
    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: Application
    Filed: March 11, 2019
    Publication date: July 4, 2019
    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
  • Publication number: 20190198795
    Abstract: A light-emitting device includes a light-emitting element having a first electrode and a second electrode, a carrier, a first contact and a second contact. The first contact is arranged on the carrier and is electrically connected to the first electrode. The second contact is arranged on the carrier and is electrically connected to the second electrode. The first contact has a contour similar with that of the first electrode. The second contact has a contour similar with that of the second electrode.
    Type: Application
    Filed: December 26, 2018
    Publication date: June 27, 2019
    Inventors: Yih-Hua Renn, Shau-Yi Chen, Ching-Tai Cheng, Aurelien Gauthier-Brun
  • Patent number: 10312423
    Abstract: A light-emitting device includes a light-emitting element, a wavelength converting layer and a light-adjusting layer. The light-emitting element has a first upper surface, a bottom surface, and a lateral surface between the first upper surface and the bottom surface. The wavelength converting layer includes a plurality of wavelength converting particles, and has a second upper surface on the first upper surface. The light-adjusting layer surrounds the lateral surface and has a first composition or a second composition. The first composition includes a first binder and a plurality of first light-diffusing particles. The second composition includes a second binder, a plurality of second light-diffusing particles, and a plurality of light-scattering particles.
    Type: Grant
    Filed: August 17, 2017
    Date of Patent: June 4, 2019
    Assignee: EPISTAR CORPORATION
    Inventors: Ching-Tai Cheng, Lung-Kuan Lai, Ju-Lien Kuo, Chun-Hua Shih, Hsuan-Tzu Peng, Yih-Hua Renn
  • Patent number: 10230033
    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: November 30, 2017
    Date of Patent: March 12, 2019
    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: 10147852
    Abstract: A light-emitting device includes a light-emitting element, a cover layer, and an anti-adhesion layer. The light-emitting element has a top surface, a bottom surface and a side surface. The cover layer covers the light-emitting element and includes a first transparent binder. The anti-adhesion layer includes a flouro-resin or a fluoride compound and disposed on the cover layer and the top surface as an outermost layer of the light-emitting device. The anti-adhesion layer has a hardness greater than a hardness of the cover layer.
    Type: Grant
    Filed: January 8, 2018
    Date of Patent: December 4, 2018
    Assignee: EPISTAR CORPORATION
    Inventors: Ching-Tai Cheng, Yih-Hua Renn, Chun-Hua Shih
  • Publication number: 20180337313
    Abstract: A light-emitting device includes a light-emitting element, a wavelength conversion layer, a light pervious element and a light-reflecting enclosure. The light-emitting element includes a top surface, a bottom surface, and a side surface between the top surface and the bottom surface. The wavelength conversion layer covers the top surface of the light-emitting element, and includes a plurality of wavelength conversion particles having an equivalent particle diameter D50. The light pervious element includes a recess structure and an outer wall. The light-reflecting enclosure surrounds the outer wall. The D50 of the wavelength conversion particles is not great than 10 ?m. The recess structure is laterally overlapped with the side surface of the light-emitting element and the wavelength conversion layer.
    Type: Application
    Filed: July 27, 2018
    Publication date: November 22, 2018
    Inventors: Ching-Tai CHENG, Chun-Hua SHIH, Yih-Hua RENN
  • Patent number: D843610
    Type: Grant
    Filed: June 9, 2017
    Date of Patent: March 19, 2019
    Assignee: Epistar Corporation
    Inventors: Lung-Kuan Lai, Ching-Tai Cheng
  • Patent number: D897296
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: September 29, 2020
    Assignee: Epistar Corporation
    Inventors: Wei-Shan Hu, Ching-Tai Cheng, Pei-Hsuan Lan