Patents by Inventor Ernest Lee

Ernest Lee 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: 12565611
    Abstract: ROSH compliant mixed quantum dot films are disclosed which, when contained in a film within a display, exhibit high color gamut, high energy efficiency, and a narrow full width at half maximum at individual wavelength emissions.
    Type: Grant
    Filed: July 6, 2022
    Date of Patent: March 3, 2026
    Assignee: SHOEI CHEMICAL INC.
    Inventors: Ernest Lee, ZhongSheng Luo
  • Publication number: 20250296472
    Abstract: A modular battery system can allow for a varying number of battery modules to be connected or disconnected to the system to meet the power needs of particular applications, such as in use in different electrical vehicles. The system can provide parallel or series connections between the battery modules to further meet the power needs of the particular applications. The system can charge the battery modules and manage charging to charge a lowest voltage state battery module to increase battery efficiency and longevity.
    Type: Application
    Filed: May 4, 2023
    Publication date: September 25, 2025
    Inventors: Dale Chi-Don CHIU, Vonn Robert CHRISTENSON, Robert Thomas CRUESS, Zakary SMITH, Jacob GOTBERG, Ernest LEE
  • Publication number: 20220411691
    Abstract: ROSH compliant mixed quantum dot films are disclosed which, when contained in a film within a display, exhibit high color gamut, high energy efficiency, and a narrow full width at half maximum at individual wavelength emissions.
    Type: Application
    Filed: July 6, 2022
    Publication date: December 29, 2022
    Applicant: Nanosys, Inc.
    Inventors: Ernest LEE, ZhongSheng LUO
  • Patent number: 11420412
    Abstract: Light-emitting quantum dot films, quantum dot lighting devices, and quantum dot-based backlight units are provided. Related compositions, components, and methods are also described. Improved quantum dot encapsulation and matrix materials are provided. Quantum dot films with protective barriers are described. High-efficiency, high brightness, and high-color purity quantum dot-based lighting devices are also included, as well as methods for improving efficiency and optical characteristics in quantum dot-based lighting devices.
    Type: Grant
    Filed: September 16, 2021
    Date of Patent: August 23, 2022
    Assignee: Nanosys, Inc.
    Inventors: Robert S. Dubrow, William P. Freeman, Ernest Lee, Paul Furuta
  • Patent number: 11396158
    Abstract: Light-emitting quantum dot films, quantum dot lighting devices, and quantum dot-based backlight units are provided. Related compositions, components, and methods are also described. Improved quantum dot encapsulation and matrix materials are provided. Quantum dot films with protective barriers are described. High-efficiency, high brightness, and high-color purity quantum dot-based lighting devices are also included, as well as methods for improving efficiency and optical characteristics in quantum dot-based lighting devices.
    Type: Grant
    Filed: July 22, 2021
    Date of Patent: July 26, 2022
    Assignee: Nanosys, Inc.
    Inventors: Robert S. Dubrow, William P. Freeman, Ernest Lee, Paul Furuta
  • Patent number: 11320577
    Abstract: Embodiments of a display device are described. The display device includes a backlight unit having a light source, a quantum dot film, and a radiation absorbing element. The quantum dot film is optically coupled to the light source and is configured to process light received from the light source. The radiation absorbing element is optically coupled to the quantum dot film and is configured to tune a spectral emission width of the processed light received from the quantum dot film to achieve over 90% color gamut coverage of a standard RGB color space.
    Type: Grant
    Filed: October 19, 2017
    Date of Patent: May 3, 2022
    Assignee: Nanosys, Inc.
    Inventors: Ernest Lee, Jason Hartlove
  • Publication number: 20220040954
    Abstract: Light-emitting quantum dot films, quantum dot lighting devices, and quantum dot-based backlight units are provided. Related compositions, components, and methods are also described. Improved quantum dot encapsulation and matrix materials are provided. Quantum dot films with protective barriers are described. High-efficiency, high brightness, and high-color purity quantum dot-based lighting devices are also included, as well as methods for improving efficiency and optical characteristics in quantum dot-based lighting devices.
    Type: Application
    Filed: September 16, 2021
    Publication date: February 10, 2022
    Applicant: Nanosys, Inc.
    Inventors: Robert S. DUBROW, William P. FREEMAN, Ernest LEE, Paul FURUTA
  • Patent number: 11198270
    Abstract: Light-emitting quantum dot films, quantum dot lighting devices, and quantum dot-based backlight units are provided. Related compositions, components, and methods are also described. Improved quantum dot encapsulation and matrix materials are provided. Quantum dot films with protective barriers are described. High-efficiency, high brightness, and high-color purity quantum dot-based lighting devices are also included, as well as methods for improving efficiency and optical characteristics in quantum dot-based lighting devices.
    Type: Grant
    Filed: December 10, 2020
    Date of Patent: December 14, 2021
    Assignee: NANOSYS, Inc.
    Inventors: Robert S. Dubrow, William P. Freeman, Ernest Lee, Paul Furuta
  • Publication number: 20210347146
    Abstract: Light-emitting quantum dot films, quantum dot lighting devices, and quantum dot-based backlight units are provided. Related compositions, components, and methods are also described. Improved quantum dot encapsulation and matrix materials are provided. Quantum dot films with protective barriers are described. High-efficiency, high brightness, and high-color purity quantum dot-based lighting devices are also included, as well as methods for improving efficiency and optical characteristics in quantum dot-based lighting devices.
    Type: Application
    Filed: July 22, 2021
    Publication date: November 11, 2021
    Applicant: Nanosys, Inc.
    Inventors: Robert S. DUBROW, William P. FREEMAN, Ernest LEE, Paul FURUTA
  • Publication number: 20210129481
    Abstract: Light-emitting quantum dot films, quantum dot lighting devices, and quantum dot-based backlight units are provided. Related compositions, components, and methods are also described. Improved quantum dot encapsulation and matrix materials are provided. Quantum dot films with protective barriers are described. High-efficiency, high brightness, and high-color purity quantum dot-based lighting devices are also included, as well as methods for improving efficiency and optical characteristics in quantum dot-based lighting devices.
    Type: Application
    Filed: December 10, 2020
    Publication date: May 6, 2021
    Applicant: Nanosys, Inc.
    Inventors: Robert S. DUBROW, William P. FREEMAN, Ernest LEE, Paul FURUTA
  • Patent number: 10984735
    Abstract: Embodiments of a device and a method of tuning white point values of light distributed by a backlight unit of a display device are described. The device includes a backlight unit, an image generating unit, and a patterned layer. The backlight unit includes a light source unit and an optical processing unit having a quantum dot film coupled to the light source unit. The image generating unit includes a display screen. The backlight unit is configured to distribute light to the display screen and the patterned layer is configured to tune white point values of the distributed light to a desired white point value in order to achieve substantially uniform white point values across the display screen.
    Type: Grant
    Filed: April 14, 2016
    Date of Patent: April 20, 2021
    Assignee: Nanosys, Inc.
    Inventors: Jian Chen, Ernest Lee, Robert E. Wilson, Steven Gensler
  • Patent number: 10935842
    Abstract: A display device includes a backlight unit having a light source and a liquid crystal display (LCD) module. The light source is configured to emit a primary light in a first wavelength region. The LCD module includes a pixel having a first, second, and third sub-pixels. The first sub-pixel includes a first emissive surface configured to emit a first light in a second wavelength region. The second sub-pixel includes a second emissive surface configured to emit a second light in a third wavelength region. The third sub-pixel includes a third emissive surface configured to emit a third light in the first wavelength region. The third luminance is greater than the first luminance and the second luminance. An area of the third emissive surface is smaller than an area of the first emissive surface and an area of the second emissive surface.
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: March 2, 2021
    Assignee: Nanosys, Inc.
    Inventors: Ernest Lee, Charles Hotz, ZhongSheng Luo, Jason Hartlove, Shihai Kan, Jian Chen
  • Patent number: 10899105
    Abstract: Light-emitting quantum dot films, quantum dot lighting devices, and quantum dot-based backlight units are provided. Related compositions, components, and methods are also described. Improved quantum dot encapsulation and matrix materials are provided. Quantum dot films with protective barriers are described. High-efficiency, high brightness, and high-color purity quantum dot-based lighting devices are also included, as well as methods for improving efficiency and optical characteristics in quantum dot-based lighting devices.
    Type: Grant
    Filed: February 4, 2020
    Date of Patent: January 26, 2021
    Assignee: Nanosys, Inc.
    Inventors: Robert S. Dubrow, William P. Freeman, Ernest Lee, Paul Furuta
  • Publication number: 20200249388
    Abstract: Light-emitting quantum dot films, quantum dot lighting devices, and quantum dot-based backlight units are provided. Related compositions, components, and methods are also described. Improved quantum dot encapsulation and matrix materials are provided. Quantum dot films with protective barriers are described. High-efficiency, high brightness, and high-color purity quantum dot-based lighting devices are also included, as well as methods for improving efficiency and optical characteristics in quantum dot-based lighting devices.
    Type: Application
    Filed: February 4, 2020
    Publication date: August 6, 2020
    Applicant: Nanosys, Inc.
    Inventors: Robert S. DUBROW, William P. FREEMAN, Ernest LEE, Paul FURUTA
  • Patent number: 10551553
    Abstract: Light-emitting quantum dot films, quantum dot lighting devices, and quantum dot-based backlight units are provided. Related compositions, components, and methods are also described. Improved quantum dot encapsulation and matrix materials are provided. Quantum dot films with protective barriers are described. High-efficiency, high brightness, and high-color purity quantum dot-based lighting devices are also included, as well as methods for improving efficiency and optical characteristics in quantum dot-based lighting devices.
    Type: Grant
    Filed: June 24, 2019
    Date of Patent: February 4, 2020
    Assignee: Nanosys, Inc.
    Inventors: Robert S. Dubrow, William P. Freeman, Ernest Lee, Paul Furuta
  • Publication number: 20190391319
    Abstract: Light-emitting quantum dot films, quantum dot lighting devices, and quantum dot-based backlight units are provided. Related compositions, components, and methods are also described. Improved quantum dot encapsulation and matrix materials are provided. Quantum dot films with protective barriers are described. High-efficiency, high brightness, and high-color purity quantum dot-based lighting devices are also included, as well as methods for improving efficiency and optical characteristics in quantum dot-based lighting devices.
    Type: Application
    Filed: June 24, 2019
    Publication date: December 26, 2019
    Applicant: Nanosys, Inc.
    Inventors: Robert S. DUBROW, William P. FREEMAN, Ernest LEE, Paul FURUTA
  • Patent number: 10509263
    Abstract: Embodiments of a device and a method of forming the same are described. The device includes a backlight unit and an image generating unit. The backlight unit includes an optical cavity having a top side, a bottom side, and side walls. The backlight unit further includes an array of light sources coupled to the optical cavity and a quantum dot film positioned within the optical cavity. The quantum dot film is configured to process light received from the array of light sources and the backlight unit is configured to transit the processed light to the image generating unit. The method includes providing an optical cavity having a top side, a bottom side, and side walls. The method further includes coupling an array of light sources to the optical cavity and supporting a quantum dot film within the optical cavity.
    Type: Grant
    Filed: April 4, 2017
    Date of Patent: December 17, 2019
    Assignee: Nanosys, Inc.
    Inventors: Ernest Lee, Robert E. Wilson, Steven Gensler
  • Patent number: 10444423
    Abstract: Light-emitting quantum dot films, quantum dot lighting devices, and quantum dot-based backlight units are provided. Related compositions, components, and methods are also described. Improved quantum dot encapsulation and matrix materials are provided. Quantum dot films with protective barriers are described. High-efficiency, high brightness, and high-color purity quantum dot-based lighting devices are also included, as well as methods for improving efficiency and optical characteristics in quantum dot-based lighting devices.
    Type: Grant
    Filed: February 3, 2015
    Date of Patent: October 15, 2019
    Assignee: Nanosys, Inc.
    Inventors: Robert S. Dubrow, William P. Freeman, Ernest Lee, Paul Furuta
  • Patent number: 10416373
    Abstract: Disclosed herein are display systems comprising light-emitting, diodes (LEDs), suitably blue light LEDs, which demonstrate increased optical power output. In embodiments, the display systems include compositions comprising phosphors, including luminescent nanocrystals.
    Type: Grant
    Filed: March 2, 2018
    Date of Patent: September 17, 2019
    Assignee: Nanosys, Inc.
    Inventors: Jian Chen, Robert S. Dubrow, Steven Gensler, Jason Hartlove, Ernest Lee, Robert Edward Wilson
  • Patent number: 10302845
    Abstract: Light-emitting quantum dot films, quantum dot lighting devices, and quantum dot-based backlight units are provided. Related compositions, components, and methods are also described. Improved quantum dot encapsulation and matrix materials are provided. Quantum dot films with protective barriers are described. High-efficiency, high brightness, and high-color purity quantum dot-based lighting devices are also included, as well as methods for improving efficiency and optical characteristics in quantum dot-based lighting devices.
    Type: Grant
    Filed: August 23, 2016
    Date of Patent: May 28, 2019
    Assignee: Nanosys, Inc.
    Inventors: Robert S. Dubrow, William P. Freeman, Ernest Lee, Paul Furuta