Patents by Inventor Ee Jin Teo

Ee Jin Teo 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).

  • Patent number: 11688826
    Abstract: A light emitting device, a method of fabricating a light emitting device and a method of controlling light emission. The light emitting device includes a plasmonic structure. The plasmonic structure is configured to have a plurality of localized surface plasmon resonances. The light emitting device also includes a broadband light emitting layer having an emission spectrum substantially overlapping wavelengths of the localized surface plasmon resonances. A spacer layer is disposed between the plasmonic structure and the broadband light emitting layer. A color of light emitted by the broadband light emitting layer is tunable by the localized surface plasmon resonances of the plasmonic structure.
    Type: Grant
    Filed: June 5, 2018
    Date of Patent: June 27, 2023
    Assignee: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH
    Inventors: Ee Jin Teo, Yi Shi, Chengyuan Yang, Qing Yang Steve Wu, Yin Thai Chan, Yang Xu, Chi Jin Darren Neo
  • Patent number: 10826608
    Abstract: Various embodiments may relate to a light emitting diode (LED) communication device including a communication interface configured to couple with an electronic device. The LED communication device may also include an electrical interface electrically coupled to the communication interface. The LED communication device may further include a light emitting diode electrically coupled to the electrical interface. The electrical interface may be configured to convert data signals received from the electronic device into driving signals transmitted to the light emitting diode during uplink, and to convert sensing signals received from the light emitting diode into data signals transmitted to the electronic device during downlink. The light emitting diode may be configured to convert the driving signals received from the electrical interface into a plurality of light pulses during uplink, and to convert a plurality of light pulses received by the light emitting diode into the sensing signals during downlink.
    Type: Grant
    Filed: April 22, 2020
    Date of Patent: November 3, 2020
    Assignee: Agency for Science, Technology and Research
    Inventors: Ee Jin Teo, Chengyuan Yang, Jinghua Teng
  • Publication number: 20200259564
    Abstract: Various embodiments may relate to a light emitting diode (LED) communication device including a communication interface configured to couple with an electronic device. The LED communication device may also include an electrical interface electrically coupled to the communication interface. The LED communication device may further include a light emitting diode electrically coupled to the electrical interface. The electrical interface may be configured to convert data signals received from the electronic device into driving signals transmitted to the light emitting diode during uplink, and to convert sensing signals received from the light emitting diode into data signals transmitted to the electronic device during downlink. The light emitting diode may be configured to convert the driving signals received from the electrical interface into a plurality of light pulses during uplink, and to convert a plurality of light pulses received by the light emitting diode into the sensing signals during downlink.
    Type: Application
    Filed: April 22, 2020
    Publication date: August 13, 2020
    Inventors: Ee Jin Teo, Chengyuan Yang, Jinghua Teng
  • Publication number: 20200203560
    Abstract: A light emitting device, a method of fabricating a light emitting device and a method of controlling light emission. The light emitting device includes a plasmonic structure. The plasmonic structure is configured to have a plurality of localized surface plasmon resonances. The light emitting device also includes a broadband light emitting layer having an emission spectrum substantially overlapping wavelengths of the localized surface plasmon resonances. A spacer layer is disposed between the plasmonic structure and the broadband light emitting layer. A color of light emitted by the broadband light emitting layer is tunable by the localized surface plasmon resonances of the plasmonic structure.
    Type: Application
    Filed: June 5, 2018
    Publication date: June 25, 2020
    Inventors: Ee Jin Teo, Yi Shi, Chengyuan Yang, Qing Yang Steve Wu, Yin Thai Chan, Yang Xu, Chi Jin Darren Neo
  • Patent number: 10666357
    Abstract: Various embodiments may relate to a light emitting diode (LED) communication device including a communication interface configured to couple with an electronic device. The LED communication device may also include an electrical interface electrically coupled to the communication interface. The LED communication device may further include a light emitting diode electrically coupled to the electrical interface. The electrical interface may be configured to convert data signals received from the electronic device into driving signals transmitted to the light emitting diode during uplink, and to convert sensing signals received from the light emitting diode into data signals transmitted to the electronic device during downlink. The light emitting diode may be configured to convert the driving signals received from the electrical interface into a plurality of light pulses during uplink, and to convert a plurality of light pulses received by the light emitting diode into the sensing signals during downlink.
    Type: Grant
    Filed: November 1, 2017
    Date of Patent: May 26, 2020
    Assignee: Agency for Science, Technology and Research
    Inventors: Ee Jin Teo, Chengyuan Yang, Jinghua Teng
  • Publication number: 20190363791
    Abstract: Various embodiments may relate to a light emitting diode (LED) communication device including a communication interface configured to couple with an electronic device. The LED communication device may also include an electrical interface electrically coupled to the communication interface. The LED communication device may further include a light emitting diode electrically coupled to the electrical interface. The electrical interface may be configured to convert data signals received from the electronic device into driving signals transmitted to the light emitting diode during uplink, and to convert sensing signals received from the light emitting diode into data signals transmitted to the electronic device during downlink The light emitting diode may be configured to convert the driving signals received from the electrical interface into a plurality of light pulses during uplink, and to convert a plurality of light pulses received by the light emitting diode into the sensing signals during downlink.
    Type: Application
    Filed: November 1, 2017
    Publication date: November 28, 2019
    Applicant: Agency for Science, Technology and Research
    Inventors: Ee Jin Teo, Chengyuan Yang, Jinghua Teng
  • Patent number: 9768347
    Abstract: A light emitting diode device (LED) is provided. The LED comprises a first-doped layer on a substrate, an active layer on the first-doped layer, a second-doped layer on the active layer, and a metal layer on the second-doped layer. The second-doped layer is patterned on a surface opposite to the active layer to define a first portion and a second portion. The first portion of the second-doped layer has a first portion thickness constrained for electron-hole pairs in the active layer to couple efficiently to a surface plasmon mode at an interface of the metal layer and the second-doped layer thereby increasing the spontaneous emission rate of the LED. The second portion of the second-doped layer has a second portion thickness sufficient to ensure formation of a p-n junction in the LED.
    Type: Grant
    Filed: April 28, 2014
    Date of Patent: September 19, 2017
    Assignees: Agency for Science, Technology and Research, National University of Singapore
    Inventors: Ee Jin Teo, Jinghua Teng, Chengyuan Yang, Andrew Bettiol
  • Publication number: 20160087143
    Abstract: A light emitting diode device (LED) is provided. The LED comprises a first-doped layer on a substrate, an active layer on the first-doped layer, a second-doped layer on the active layer, and a metal layer on the second-doped layer. The second-doped layer is patterned on a surface opposite to the active layer to define a first portion and a second portion. The first portion of the second-doped layer has a first portion thickness constrained for electron-hole pairs in the active layer to couple efficiently to a surface plasmon mode at an interface of the metal layer and the second-doped layer thereby increasing the spontaneous emission rate of the LED. The second portion of the second-doped layer has a second portion thickness sufficient to ensure formation of a p-n junction in the LED.
    Type: Application
    Filed: April 28, 2014
    Publication date: March 24, 2016
    Inventors: Ee Jin Teo, Jinghua Teng, Chengyuan Yang, Andrew Bettiol