Patents by Inventor Kanghoon Jeon

Kanghoon Jeon 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: 20240096294
    Abstract: A device may include an electronic display to display image frames. The display may include illuminators that generate light and mirrors that selectively direct the light to pixel locations based bitplanes that set the arrangement of the mirrors. Additionally, the device may include duty cycle balancing circuitry that generates and provides duty cycle balancing signals to the electronic display. In response to the duty cycle balancing signals, the electronic display is implements balancing on bitplanes during at least a first portion of off periods during the image frames and implements balancing off bitplanes during at least a second portion of the off periods such that, in the aggregate, a ratio of respective on times of the mirrors to respective off times of the mirrors is balanced across the image frames during the off periods.
    Type: Application
    Filed: July 17, 2023
    Publication date: March 21, 2024
    Inventors: Denis M Darmon, Kanghoon Jeon, Jose A Dominguez-Caballero, Bilin Wang
  • Publication number: 20230410750
    Abstract: A pixel circuit for an electronic display may include a memory to store a digital data signal indicative of a value within a data range. The pixel circuit may also include a light-emitting diode to emit light based at least in part on the digital data signal. The pixel circuit may also include an initialization transistor to initialize the pixel circuit before the light-emitting diode emits light and a driving transistor to activate based at least in part on the digital data signal.
    Type: Application
    Filed: August 29, 2023
    Publication date: December 21, 2023
    Inventors: Yingkan Lin, Tien-Chien Kuo, Bilin Wang, Kanghoon Jeon, Ivan Knez, Chun-Yao Huang
  • Patent number: 11798481
    Abstract: A pixel circuit for an electronic display may include a memory to store a digital data signal indicative of a value within a data range. The pixel circuit may also include a light-emitting diode to emit light based at least in part on the digital data signal. The pixel circuit may also include an initialization transistor to initialize the pixel circuit before the light-emitting diode emits light and a driving transistor to activate based at least in part on the digital data signal.
    Type: Grant
    Filed: February 1, 2021
    Date of Patent: October 24, 2023
    Assignee: Apple Inc.
    Inventors: Yingkan Lin, Tien-Chien Kuo, Bilin Wang, Kanghoon Jeon, Ivan Knez, Chun-Yao Huang
  • Publication number: 20230014712
    Abstract: A display system may include a memory external to a pixel that stores a first digital data value, a memory internal to the pixel that stores a second digital data signal, where a combination of the first digital data signal and the second digital data signal may indicate a target gray level assigned to the pixel for a particular image frame. The pixel may be driven for a first duration of time according to the first digital data signal and for a second duration of time according to the second digital data signal.
    Type: Application
    Filed: September 21, 2022
    Publication date: January 19, 2023
    Inventors: Bilin Wang, Tien-Chien Kuo, Kanghoon Jeon, Chun-Yao Huang
  • Patent number: 11527209
    Abstract: A display system may include a memory external to a pixel that stores a first digital data value, a memory internal to the pixel that stores a second digital data signal, where a combination of the first digital data signal and the second digital data signal may indicate a target gray level assigned to the pixel for a particular image frame. The pixel may be driven for a first duration of time according to the first digital data signal and for a second duration of time according to the second digital data signal.
    Type: Grant
    Filed: March 9, 2021
    Date of Patent: December 13, 2022
    Assignee: Apple Inc.
    Inventors: Bilin Wang, Tien-Chien Kuo, Kanghoon Jeon, Chun-Yao Huang
  • Patent number: 11138950
    Abstract: Efficiently transmitting image data to an electronic display may be provided by skipping regions of the electronic display that display a default value. The electronic display may include a number of pixels, a row driver, and a data driver. The row driver may activate a first subset of the pixels for programming. The data driver may program a default pixel value to respective pixels of the first subset of the pixels for which image data has not been received and may program image data to respective pixels of the first subset of the pixels for which image data has been received.
    Type: Grant
    Filed: November 19, 2019
    Date of Patent: October 5, 2021
    Assignee: Apple Inc.
    Inventors: Tien-Chien Kuo, Ivan Knez, Bilin Wang, Hopil Bae, Kanghoon Jeon, Chun-Yao Huang, Denis Michel Darmon
  • Publication number: 20210304682
    Abstract: A display system may include a memory external to a pixel that stores a first digital data value, a memory internal to the pixel that stores a second digital data signal, where a combination of the first digital data signal and the second digital data signal may indicate a target gray level assigned to the pixel for a particular image frame. The pixel may be driven for a first duration of time according to the first digital data signal and for a second duration of time according to the second digital data signal.
    Type: Application
    Filed: March 9, 2021
    Publication date: September 30, 2021
    Inventors: Bilin Wang, Tien-Chien Kuo, Kanghoon Jeon, Chun-Yao Huang
  • Patent number: 11049448
    Abstract: An electronic display may include an active area having a first pixel formed in the active area, where the first pixel emits light in response to image data. The electronic display may also include a controller to transmit the image data to the first pixel. The first pixel may include an organic light-emitting diode that emits the light in response to the image data, memory to digitally store the image data received from the controller, and driver circuitry to receive the image data from the memory. The driver circuitry may cause the organic light-emitting diode to emit the light in response to the image data.
    Type: Grant
    Filed: April 30, 2019
    Date of Patent: June 29, 2021
    Assignee: Apple Inc.
    Inventors: Ivan Knez, Tien-Chien Kuo, Yingkan Lin, Bilin Wang, Kanghoon Jeon, Mitchell Herman Kline, Hopil Bae, Jose Antonio Dominguez-Caballero, Chun-Yao Huang, Syed Farhan Mohiuddin
  • Publication number: 20210158759
    Abstract: A pixel circuit for an electronic display may include a memory to store a digital data signal indicative of a value within a data range. The pixel circuit may also include a light-emitting diode to emit light based at least in part on the digital data signal. The pixel circuit may also include an initialization transistor to initialize the pixel circuit before the light-emitting diode emits light and a driving transistor to activate based at least in part on the digital data signal.
    Type: Application
    Filed: February 1, 2021
    Publication date: May 27, 2021
    Inventors: Yingkan Lin, Tien-Chien Kuo, Bilin Wang, Kanghoon Jeon, Ivan Knez, Chun-Yao Huang
  • Patent number: 10909926
    Abstract: A pixel circuit for an electronic display may include a memory to store a digital data signal indicative of a value within a data range. The pixel circuit may also include a light-emitting diode to emit light based at least in part on the digital data signal. The pixel circuit may also include an initialization transistor to initialize the pixel circuit before the light-emitting diode emits light and a driving transistor to activate based at least in part on the digital data signal.
    Type: Grant
    Filed: April 30, 2019
    Date of Patent: February 2, 2021
    Assignee: Apple Inc.
    Inventors: Yingkan Lin, Tien-Chien Kuo, Bilin Wang, Kanghoon Jeon, Ivan Knez, Chun-Yao Huang
  • Patent number: 10867548
    Abstract: An electronic display may include a memory formed in an active area of the electronic display or formed in integrated circuitry of the electronic display that is outside of the active area. The memory may store a digital data signal indicative of a value within a data range. The electronic display may include a driver disposed in the active area, where the driver may generate one or more analog electrical signals in response to the digital data signal. The electronic display may also include a light-modulating device disposed on the active area, where the light-modulating device may emit light based at least in part on the one or more analog electrical signals.
    Type: Grant
    Filed: April 30, 2019
    Date of Patent: December 15, 2020
    Assignee: Apple Inc.
    Inventors: Tien-Chien Kuo, Kanghoon Jeon, Yingkan Lin, Bilin Wang, Ivan Knez, Stanley Bo-Ting Wang, Chun-Yao Huang
  • Publication number: 20190347980
    Abstract: An electronic display may include a memory formed in an active area of the electronic display or formed in integrated circuitry of the electronic display that is outside of the active area. The memory may store a digital data signal indicative of a value within a data range. The electronic display may include a driver disposed in the active area, where the driver may generate one or more analog electrical signals in response to the digital data signal. The electronic display may also include a light-modulating device disposed on the active area, where the light-modulating device may emit light based at least in part on the one or more analog electrical signals.
    Type: Application
    Filed: April 30, 2019
    Publication date: November 14, 2019
    Inventors: Tien-Chien Kuo, Kanghoon Jeon, Yingkan Lin, Bilin Wang, Ivan Knez, Stanley Bo-Ting Wang, Chun-Yao Huang
  • Publication number: 20190347990
    Abstract: An electronic display may include an active area having a first pixel formed in the active area, where the first pixel emits light in response to image data. The electronic display may also include a controller to transmit the image data to the first pixel. The first pixel may include an organic light-emitting diode that emits the light in response to the image data, memory to digitally store the image data received from the controller, and driver circuitry to receive the image data from the memory. The driver circuitry may cause the organic light-emitting diode to emit the light in response to the image data.
    Type: Application
    Filed: April 30, 2019
    Publication date: November 14, 2019
    Inventors: Ivan Knez, Tien-Chien Kuo, Yingkan Lin, Bilin Wang, Kanghoon Jeon, Mitchell Herman Kline, Hopil Bae, Jose Antonio Dominguez-Caballero, Chun-Yao Huang, Syed Farhan Mohiuddin
  • Publication number: 20190347994
    Abstract: A pixel circuit for an electronic display may include a memory to store a digital data signal indicative of a value within a data range. The pixel circuit may also include a light-emitting diode to emit light based at least in part on the digital data signal. The pixel circuit may also include an initialization transistor to initialize the pixel circuit before the light-emitting diode emits light and a driving transistor to activate based at least in part on the digital data signal.
    Type: Application
    Filed: April 30, 2019
    Publication date: November 14, 2019
    Inventors: Yingkan Lin, Tien-Chien Kuo, Bilin Wang, Kanghoon Jeon, Ivan Knez, Chun-Yao Huang
  • Patent number: 9455023
    Abstract: Systems, methods, and other embodiments associated with improving a static noise margin of memory cells by using charge sharing to under-drive a wordline are described. In one embodiment, a system includes power logic to, in response to a memory request, connect a voltage source with a virtual power network to store an electric charge within the virtual power network based on a voltage from the voltage source. The virtual power network includes a network of interconnects that electrically connect a plurality of driver interconnects. The system includes wordline logic to under-drive a requested wordline of a plurality of wordlines by connecting the requested wordline with the virtual power network to share the electric charge stored in the virtual power network with the requested wordline. The wordline logic under-drives a voltage of the requested wordline to be lower than a source voltage provided by the voltage source.
    Type: Grant
    Filed: October 14, 2015
    Date of Patent: September 27, 2016
    Assignee: ORACLE INTERNATIONAL CORPORATION
    Inventors: Pangjie Xu, Hoyeol Cho, Kanghoon Jeon
  • Patent number: 9029218
    Abstract: Horizontal and vertical tunneling field-effect transistors (TFETs) having an abrupt junction between source and drain regions increases probability of direct tunneling of carriers (e.g., electrons and holes). The increased probability allows a higher achievable on current in TFETs having the abrupt junction. The abrupt junction may be formed by placement of a dielectric layer or a dielectric layer and a semiconductor layer in a current path between the source and drain regions. The dielectric layer may be a low permittivity oxide such as silicon oxide, lanthanum oxide, zirconium oxide, or aluminum oxide.
    Type: Grant
    Filed: April 4, 2013
    Date of Patent: May 12, 2015
    Assignee: Sematech, Inc.
    Inventors: Wei-Yip Loh, Brian Coss, Kanghoon Jeon
  • Publication number: 20130230954
    Abstract: Horizontal and vertical tunneling field-effect transistors (TFETs) having an abrupt junction between source and drain regions increases probability of direct tunneling of carriers (e.g., electrons and holes). The increased probability allows a higher achievable on current in TFETs having the abrupt junction. The abrupt junction may be formed by placement of a dielectric layer or a dielectric layer and a semiconductor layer in a current path between the source and drain regions. The dielectric layer may be a low permittivity oxide such as silicon oxide, lanthanum oxide, zirconium oxide, or aluminum oxide.
    Type: Application
    Filed: April 4, 2013
    Publication date: September 5, 2013
    Applicant: SEMATECH, INC.
    Inventors: Wei-Yip Loh, Brian Coss, Kanghoon Jeon
  • Patent number: 8436422
    Abstract: Horizontal and vertical tunneling field-effect transistors (TFETs) having an abrupt junction between source and drain regions increases probability of direct tunneling of carriers (e.g., electrons and holes). The increased probability allows a higher achievable on current in TFETs having the abrupt junction. The abrupt junction may be formed by placement of a dielectric layer or a dielectric layer and a semiconductor layer in a current path between the source and drain regions. The dielectric layer may be a low permittivity oxide such as silicon oxide, lanthanum oxide, zirconium oxide, or aluminum oxide.
    Type: Grant
    Filed: March 8, 2010
    Date of Patent: May 7, 2013
    Assignee: Sematech, Inc.
    Inventors: Wei-Yip Loh, Brian Coss, Kanghoon Jeon
  • Patent number: 8421165
    Abstract: Apparatuses, systems, and methods for tunneling MOSFETs (TFETs) using a self-aligned heterostructure source and isolated drain. TFETs that have an abrupt junction between source and drain regions have an increased probability of carrier direct tunneling (e.g., electrons and holes). The increased probability allows a higher achievable on current in TFETs having the abrupt junction.
    Type: Grant
    Filed: May 11, 2010
    Date of Patent: April 16, 2013
    Assignee: Sematech, Inc.
    Inventors: Wei-Yip Loh, Kanghoon Jeon, Chanro Park
  • Publication number: 20110278670
    Abstract: Apparatuses, systems, and methods for tunneling MOSFETs (TFETs) using a self-aligned heterostructure source and isolated drain. TFETs that have an abrupt junction between source and drain regions have an increased probability of carrier direct tunneling (e.g., electrons and holes). The increased probability allows a higher achievable on current in TFETs having the abrupt junction.
    Type: Application
    Filed: May 11, 2010
    Publication date: November 17, 2011
    Inventors: WEI-YIP LOH, Kanghoon Jeon, Chanro Park