Patents by Inventor Chi Wai Lee

Chi Wai 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: 11779131
    Abstract: A linkage-type misalignment material discharge structure is provided. It has a support block and a drive element. The support block comprises a rotation shaft, a first support sheet and a second support sheet stacked on the rotation shaft successively. The first support sheet comprises a first support portion and a first material discharge portion, the second support sheet comprises a second support portion and a second material discharge portion. The first and second material discharge portions are misaligned in a perpendicular direction. One end of the rotation shaft is connected with a swing rod provided with a clamping groove, the drive element is provided with a position limitation column matched with the clamping groove. The support block is rotated for discharging the material under a drive of the drive element, such that the in-situ material falling is accurate and reliable without requiring any forward, backward, leftward or rightward movement.
    Type: Grant
    Filed: May 20, 2021
    Date of Patent: October 10, 2023
    Assignee: Kolor Magnetic (Shenzhen) Co., Ltd.
    Inventors: Ching Mou Lee, Chi Wai Lee
  • Patent number: 11769460
    Abstract: An image displaying apparatus with local dimming control with 2-line addressing is disclosed. The apparatus includes a display panel, a light-emitting diode (LED) backlight divided into a plurality of zones, and a control unit. The control unit is configured to couple a dimming data to the LED backlight. The zones of the LED backlight are driven by row enable signals and column driving signals based on the dimming data. Each individual column driving signal transmits a common brightness data, a first residual brightness data, and a second residual brightness data. A first row enable signal has a first enable pulse in a frame period, and a second row enable signal has a second enable pulse in the frame period. The first and second enable pulses are at least partially overlapped for reducing a pulse current of the LED backlight for enhancing a lifetime of the LED backlight.
    Type: Grant
    Filed: August 26, 2021
    Date of Patent: September 26, 2023
    Assignee: Solomon Systech (Shenzhen) Limited
    Inventors: Wing Chi Stephen Chan, Ting On Ngan, Chi Wai Lee, Shu Shing Ching
  • Patent number: 11694653
    Abstract: The present invention provides a motion content based dynamic frame rate conversion method for displaying a video by a display device, comprising: detecting motion content of the video and generating a control signal for controlling a display color depth based on the motion detection result. The video is displayed with a lower color depth at a higher frame rate than a standard configuration of the display device if the motion detection result indicates that the video contains appreciable amount of motion content; and the video is displayed with a higher color depth at a lower frame rate than the standard configuration of the display device if the motion detection result indicates that the video is relatively static. The present invention can facilitate the display device to dynamically convert its display output formats according to motion content of the video to further optimize the display quality.
    Type: Grant
    Filed: December 30, 2021
    Date of Patent: July 4, 2023
    Assignee: Solomon Systech (Shenzhen) Limited
    Inventors: Wing Chi Stephen Chan, Chi Wai Lee, Chun Hung Lai
  • Publication number: 20230103014
    Abstract: The present invention provides a motion content based dynamic frame rate conversion method for displaying a video by a display device, comprising: detecting motion content of the video and generating a control signal for controlling a display color depth based on the motion detection result. The video is displayed with a lower color depth at a higher frame rate than a standard configuration of the display device if the motion detection result indicates that the video contains appreciable amount of motion content; and the video is displayed with a higher color depth at a lower frame rate than the standard configuration of the display device if the motion detection result indicates that the video is relatively static. The present invention can facilitate the display device to dynamically convert its display output formats according to motion content of the video to further optimize the display quality.
    Type: Application
    Filed: December 30, 2021
    Publication date: March 30, 2023
    Inventors: Wing Chi Stephen CHAN, Chi Wai LEE, Chun Hung LAI
  • Publication number: 20230069665
    Abstract: An image displaying apparatus with local dimming control with 2-line addressing is disclosed. The apparatus includes a display panel, a light-emitting diode (LED) backlight divided into a plurality of zones, and a control unit. The control unit is configured to couple a dimming data to the LED backlight. The zones of the LED backlight are driven by row enable signals and column driving signals based on the dimming data. Each individual column driving signal transmits a common brightness data, a first residual brightness data, and a second residual brightness data. A first row enable signal has a first enable pulse in a frame period, and a second row enable signal has a second enable pulse in the frame period. The first and second enable pulses are at least partially overlapped for reducing a pulse current of the LED backlight for enhancing a lifetime of the LED backlight.
    Type: Application
    Filed: August 26, 2021
    Publication date: March 2, 2023
    Inventors: Wing Chi Stephen CHAN, Ting On NGAN, Chi Wai LEE, Shu Shing CHING
  • Patent number: 11510505
    Abstract: A rotation-type misalignment material discharge structure is provided. It has a support block and a drive element. The support block comprises a rotation shaft, a first support sheet and a second support sheet stacked on the rotation shaft successively. The first support sheet comprises a first support portion and a first material discharge portion, the second support sheet comprises a second support portion and a second material discharge portion. The first and second material discharge portions are misaligned in a perpendicular direction. One end of the rotation shaft is in transmission connection with the drive element; wherein the support block is rotated for discharging the material under a drive of the drive element. The support block is rotated for discharging the material under a drive of the drive element, such that the in-situ material falling is accurate and reliable without requiring any forward, backward, leftward or rightward movement.
    Type: Grant
    Filed: May 20, 2021
    Date of Patent: November 29, 2022
    Assignee: Kolor Magnetic (Shenzhen) Co., Ltd.
    Inventors: Ching Mou Lee, Chi Wai Lee
  • Patent number: 11510504
    Abstract: A tableware taking device is provided, which comprising a base and a tableware taking apparatus arranged on the base. The tableware taking apparatus is further provided with a button and a connecting rod with a first end connecting the button; the base is provided with a positioning hole in which a second end of the connecting rod is inserted for fixing the tableware taking apparatus on the base. When the button is pressed downward, the second end of the connecting rod moves away from the positioning hole for detaching the tableware taking apparatus from the base; thus the tableware taking apparatus can be placed in a better way for preventing itself from turning over. In additional, the connecting rod can be controlled by the button on the tableware taking apparatus to move away from the positioning hole in the base for detaching the tableware taking apparatus from the base.
    Type: Grant
    Filed: November 14, 2019
    Date of Patent: November 29, 2022
    Assignee: Kolor Magnetic (Shenzhen) Co., Ltd.
    Inventors: Ching Mou Lee, Chi Wai Lee
  • Patent number: 11443680
    Abstract: The present invention provides a dithering and directional modulation-based frame rate conversion apparatus comprising: a directional delta modulation generator configured to receive a plurality of input color data representing a plurality of input color components of an input pixel color and generate a plurality of modulated data for the plurality of input color data respectively; and a plurality of dithering modules configured to perform K-bit dithering conversion on the plurality of input color data respectively to generate a plurality of output color data for representing a plurality of output color components of an output pixel color with a color depth of K bits per component, where K is an integer equal to or great than 1. The present invention can allow display to support frame rates higher than its standard configuration without observable color depth degradation.
    Type: Grant
    Filed: December 30, 2021
    Date of Patent: September 13, 2022
    Assignee: Solomon Systech (Shenzhen) Limited
    Inventors: Wing Chi Stephen Chan, Chi Wai Lee, Wai Hon Ng, Chen Jung Chuang
  • Publication number: 20220202205
    Abstract: A linkage-type misalignment material discharge structure is provided. It has a support block and a drive element. The support block comprises a rotation shaft, a first support sheet and a second support sheet stacked on the rotation shaft successively. The first support sheet comprises a first support portion and a first material discharge portion, the second support sheet comprises a second support portion and a second material discharge portion. The first and second material discharge portions are misaligned in a perpendicular direction. One end of the rotation shaft is connected with a swing rod provided with a clamping groove, the drive element is provided with a position limitation column matched with the clamping groove. The support block is rotated for discharging the material under a drive of the drive element, such that the in-situ material falling is accurate and reliable without requiring any forward, backward, leftward or rightward movement.
    Type: Application
    Filed: May 20, 2021
    Publication date: June 30, 2022
    Inventors: Ching Mou Lee, Chi Wai Lee
  • Publication number: 20220202204
    Abstract: A rotation-type misalignment material discharge structure is provided. It has a support block and a drive element. The support block comprises a rotation shaft, a first support sheet and a second support sheet stacked on the rotation shaft successively. The first support sheet comprises a first support portion and a first material discharge portion, the second support sheet comprises a second support portion and a second material discharge portion. The first and second material discharge portions are misaligned in a perpendicular direction. One end of the rotation shaft is in transmission connection with the drive element; wherein the support block is rotated for discharging the material under a drive of the drive element. The support block is rotated for discharging the material under a drive of the drive element, such that the in-situ material falling is accurate and reliable without requiring any forward, backward, leftward or rightward movement.
    Type: Application
    Filed: May 20, 2021
    Publication date: June 30, 2022
    Inventors: Ching Mou Lee, Chi Wai Lee
  • Patent number: 11357087
    Abstract: A passive matrix LED display driving scheme based on subframe pulse width modulation (PWM) to increase frame scan rate and further with channel-to-channel compensation is provided. The scheme may comprise: dividing each frame of the display video into T number of subframes; converting a driving signal for a pixel into a N-bit driving data, compensating the driving data with a compensation value; mapping the compensated driving data into the T number of subframes respectively.
    Type: Grant
    Filed: July 2, 2020
    Date of Patent: June 7, 2022
    Assignee: Solomon Systech (Shenzhen) Limited
    Inventors: Wing Chi Stephen Chan, Chi Wai Lee, Pak Kong Dunn, Tung Hoi Lau, Chun Hung Lai
  • Patent number: 11282434
    Abstract: A method is provided for driving an active matrix display device comprising a matrix of pixels configured to display an n-bit image data in an image frame by dividing the image frame for each pixel into n subframes; defining the n-bit image data to have n1 number of greater significant bits and n2 number of lesser significant bits, where n1+n2=n; and selecting the rows of pixels non-sequentially in the subframes corresponding to the n2 number of lesser significant bits such that there is no more than one row of pixel being selected in each subframe. The provided method can utilize the scan sequence in a more flexible way to make better use of the available scan time such that a higher display resolution or dynamic range can be achieved without increasing the scanning frequency.
    Type: Grant
    Filed: December 29, 2020
    Date of Patent: March 22, 2022
    Assignee: Solomon Systech (China) Limited
    Inventors: Wing Chi Stephen Chan, Chi Wai Lee, Chui Kwan Leung
  • Patent number: D951672
    Type: Grant
    Filed: November 18, 2020
    Date of Patent: May 17, 2022
    Assignee: Kolor Magnetic (Shenzhen) Co., Ltd.
    Inventors: Ching Mou Lee, Chi Wai Lee
  • Patent number: D966045
    Type: Grant
    Filed: October 22, 2020
    Date of Patent: October 11, 2022
    Assignee: Kolor Magnetic (Shenzhen) Co., Ltd.
    Inventors: Ching Mou Lee, Chi Wai Lee
  • Patent number: D966046
    Type: Grant
    Filed: October 22, 2020
    Date of Patent: October 11, 2022
    Assignee: Kolor Magnetic (Shenzhen) Co., Ltd.
    Inventors: Ching Mou Lee, Chi Wai Lee
  • Patent number: D966047
    Type: Grant
    Filed: October 22, 2020
    Date of Patent: October 11, 2022
    Assignee: Kolor Magnetic (Shenzhen) Co., Ltd.
    Inventors: Ching Mou Lee, Chi Wai Lee
  • Patent number: D980022
    Type: Grant
    Filed: August 22, 2022
    Date of Patent: March 7, 2023
    Assignee: Kolor Magnetic (Shenzhen) Co., Ltd.
    Inventors: Ching Mou Lee, Chi Wai Lee
  • Patent number: D981190
    Type: Grant
    Filed: August 22, 2022
    Date of Patent: March 21, 2023
    Assignee: Kolor Magnetic (Shenzhen) Co., Ltd.
    Inventors: Ching Mou Lee, Chi Wai Lee
  • Patent number: D983620
    Type: Grant
    Filed: August 8, 2021
    Date of Patent: April 18, 2023
    Assignee: Kolor Magnetic (Shenzhen) Co., Ltd.
    Inventors: Ching Mou Lee, Chi Wai Lee
  • Patent number: D984226
    Type: Grant
    Filed: August 22, 2022
    Date of Patent: April 25, 2023
    Assignee: Kolor Magnetic (Shenzhen) Co., Ltd.
    Inventors: Ching Mou Lee, Chi Wai Lee