Patents by Inventor Yi-Yu Tsai

Yi-Yu Tsai 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: 12288510
    Abstract: An LED display screen configuration system for improving the gray scale recognition effect of human eyes used in a direct-view LED display screen sets a first current matched with a selected gamma value to output light to define a first brightness range, then uses a brightness X˜100% in the first brightness range to form a first modulation interval and a brightness Y % as a minimum allowable value, and sets the next current to form the next modulation interval, and so on and so forth. In any two adjacent modulation intervals, the maximum brightness outputted from the latter modulation interval is equal to or slightly greater than the brightness X % of the previous modulation interval, so that the respective current outputs of the 1st to the Nth modulation intervals show a power decreasing relationship, so as to set or switch to the most suitable modulation interval for the practical brightness requirements.
    Type: Grant
    Filed: April 19, 2024
    Date of Patent: April 29, 2025
    Assignee: STARLIGHT DISPLAY CORPORATION
    Inventors: Yi-Yu Tsai, Shao-Wei Chiu, Yin-Cheng Huang
  • Publication number: 20240428745
    Abstract: A processing system for simultaneously presenting brightness performance of different areas on a single display screen includes: a detection processor and a control processor. The detection processor performs a multi-point photometry of a pre-imaging area to find out the difference in ambient light intensity distribution among the points on the display screen after a display device is installed, where the pre-imaging area refers to an area of a display device set up or projected for viewing. The control processor connected to the detection processor for correspondingly cutting a screen range of the display device into multiple modulation areas based on the ambient light intensity difference of the pre-imaging area. In this way, the display screen can be adjusted to adapt to various environments with differences in brightness or position.
    Type: Application
    Filed: June 12, 2024
    Publication date: December 26, 2024
    Inventors: YI-YU TSAI, SHAO-WEI CHIU, YIN-CHENG HUANG
  • Patent number: 12140794
    Abstract: A light source module includes a light guide plate including a light entrance surface and a light source adjacent to the light entrance surface. The light source includes a light emitting device to emit a blue light, a first wavelength conversion unit on the light emitting device and a second wavelength conversion unit on the light emitting unit. When the blue light is incident to the first wavelength conversion unit, the blue light is converted into a first light. The first light has a wavelength in a range from 480 nm to 650 nm. When the blue light is incident to the second wavelength conversion unit, the blue light is converted to a second light. The second light has a wavelength different from the wavelength of the first light. The blue light, the first light and the second light combine to produce a white light.
    Type: Grant
    Filed: November 1, 2023
    Date of Patent: November 12, 2024
    Assignee: E Ink Holdings Inc.
    Inventors: Yi-Yu Tsai, Ching-Huan Liao
  • Publication number: 20240319431
    Abstract: A display device includes a reflective display panel, a light guide plate, a first resin layer, a second resin layer, and a first optical adhesive layer. The light guide plate has a top surface and a bottom surface. The first resin layer includes a light guide entrance and a leveled region. The first resin layer is located on the bottom surface. The second resin layer is located on the top surface and has a microstructure. The first optical adhesive layer is located between the reflective display panel and the light guide plate. The refractive index of the leveled region of the first resin layer and the refractive index of the first optical adhesive layer are the same.
    Type: Application
    Filed: March 19, 2024
    Publication date: September 26, 2024
    Inventor: Yi-Yu TSAI
  • Publication number: 20240241304
    Abstract: A light source module includes a light guide plate including a light entrance surface and a light source adjacent to the light entrance surface. The light source includes a light emitting device to emit a blue light, a first wavelength conversion unit on the light emitting device and a second wavelength conversion unit on the light emitting unit. When the blue light is incident to the first wavelength conversion unit, the blue light is converted into a first light. The first light has a wavelength in a range from 480 nm to 650 nm. When the blue light is incident to the second wavelength conversion unit, the blue light is converted to a second light. The second light has a wavelength different from the wavelength of the first light. The blue light, the first light and the second light combine to produce a white light.
    Type: Application
    Filed: November 1, 2023
    Publication date: July 18, 2024
    Inventors: Yi-Yu TSAI, Ching-Huan LIAO
  • Publication number: 20240160078
    Abstract: A light source device includes a light emitting element and a fluorescent portion. The light emitting element is configured to emit light. The fluorescent portion is disposed on the light emitting element. The fluorescent portion is configured to transform the light into illumination light. In the spectrum of the illuminating light, the energy in red band is in a range from 25% to 45% of the energy in full band.
    Type: Application
    Filed: July 20, 2023
    Publication date: May 16, 2024
    Inventors: Yi-Yu TSAI, Ching-Huan LIAO
  • Patent number: 11908371
    Abstract: In an automatic gamma adjustment system with environmental adaptability, the system is installed in a display device and an image signal source is selected, such that an image signal is received and converted into first YUV signals, while detecting the surrounding situation to obtain at least one environmental data, and obtaining a gamma control parameter of a display screen of the display device according to the environmental data. When the environmental data is calculated to obtain a maximum brightness current value, the gamma control parameter is used to calculate the first YUV signals as second YUV signals, and the maximum brightness current value and the second YUV signals are sent to the display device for displaying the image. Therefore the grayscale layering effect of an image presented to people can be adjusted by automatically correcting the gamma value according to the surrounding situation at any time.
    Type: Grant
    Filed: May 23, 2023
    Date of Patent: February 20, 2024
    Assignee: STARLIGHT DISPLAY CORPORATION
    Inventors: Shao-Wei Chiu, Yi-Yu Tsai, Yin-Cheng Huang
  • Publication number: 20230410712
    Abstract: In an automatic gamma adjustment system with environmental adaptability, the system is installed in a display device and an image signal source is selected, such that an image signal is received and converted into first YUV signals, while detecting the surrounding situation to obtain at least one environmental data, and obtaining a gamma control parameter of a display screen of the display device according to the environmental data. When the environmental data is calculated to obtain a maximum brightness current value, the gamma control parameter is used to calculate the first YUV signals as second YUV signals, and the maximum brightness current value and the second YUV signals are sent to the display device for displaying the image. Therefore the grayscale layering effect of an image presented to people can be adjusted by automatically correcting the gamma value according to the surrounding situation at any time.
    Type: Application
    Filed: May 23, 2023
    Publication date: December 21, 2023
    Inventors: SHAO-WEI CHIU, YI-YU TSAI, YIN-CHENG HUANG
  • Patent number: 11789316
    Abstract: A front light module includes a foldable light guide plate, a light source, an upper insulating layer, an upper optical adhesive layer, a lower insulating layer, and a lower optical adhesive layer. The top surface and the bottom surface of the foldable light guide plate adjoin the light incident surface of the foldable light guide plate. The light source faces toward the light incident surface. The upper insulating layer is located on the top surface. The upper optical adhesive layer is located on the upper insulating layer, and a storage modulus of the upper optical adhesive layer is less than a storage modulus of the upper insulating layer. The lower optical adhesive layer is located on a bottom surface of the lower insulating layer, and a storage modulus of the lower optical adhesive layer is less than a storage modulus of the lower insulating layer.
    Type: Grant
    Filed: December 7, 2022
    Date of Patent: October 17, 2023
    Assignee: E Ink Holdings Inc.
    Inventors: Kun-Hsien Lee, Sheng-Chieh Tai, Yi-Yu Tsai, Hsin-Tao Huang
  • Patent number: 11733581
    Abstract: A light source device is used to generate illumination light and includes a plurality of light emitting components, at least one first fluorescent part, and at least one second fluorescent part. Each light emitting component is used to emit light. The first fluorescent part is disposed on at least one of the light emitting components and able to convert the light to first white light having a first color temperature. The second fluorescent part is disposed on at least one of the other light emitting components and able to convert the light to second white light having a second color temperature. The illumination light includes the first white light and the second white light, where the maximum difference between the first color temperature and the second color temperature is greater than or equal to 2000K.
    Type: Grant
    Filed: August 26, 2021
    Date of Patent: August 22, 2023
    Assignee: E Ink Holdings Inc.
    Inventors: Ching-Huan Liao, Yi-Yu Tsai
  • Publication number: 20230229041
    Abstract: A front light module includes a foldable light guide plate, a light source, an upper insulating layer, an upper optical adhesive layer, a lower insulating layer, and a lower optical adhesive layer. The top surface and the bottom surface of the foldable light guide plate adjoin the light incident surface of the foldable light guide plate. The light source faces toward the light incident surface. The upper insulating layer is located on the top surface. The upper optical adhesive layer is located on the upper insulating layer, and a storage modulus of the upper optical adhesive layer is less than a storage modulus of the upper insulating layer. The lower optical adhesive layer is located on a bottom surface of the lower insulating layer, and a storage modulus of the lower optical adhesive layer is less than a storage modulus of the lower insulating layer.
    Type: Application
    Filed: December 7, 2022
    Publication date: July 20, 2023
    Inventors: Kun-Hsien LEE, Sheng-Chieh TAI, Yi-Yu TSAI, Hsin-Tao HUANG
  • Publication number: 20230194761
    Abstract: A color display device includes a substrate, a pixel structure, a color filter array, and a display medium layer. The pixel structure is deposed on the substrate and includes pixel sub-structures. The color filter array is formed from color materials of different color and deposed above the pixel structure. The color filter array includes filter elements, each of which corresponding to one of the pixel sub-structures. At least some of the filter elements are formed from two kinds of the color materials of different color. The display medium layer is deposed on the pixel structure. A color filter array substrate is also provided.
    Type: Application
    Filed: September 22, 2022
    Publication date: June 22, 2023
    Applicant: E Ink Holdings Inc.
    Inventors: Ching-Huan Liao, Yi-Yu Tsai, Hsin-Tao Huang
  • Publication number: 20220342272
    Abstract: A light source device is used to generate illumination light and includes a plurality of light emitting components, at least one first fluorescent part, and at least one second fluorescent part. Each light emitting component is used to emit light. The first fluorescent part is disposed on at least one of the light emitting components and able to convert the light to first white light having a first color temperature. The second fluorescent part is disposed on at least one of the other light emitting components and able to convert the light to second white light having a second color temperature. The illumination light includes the first white light and the second white light, where the maximum difference between the first color temperature and the second color temperature is greater than or equal to 2000K.
    Type: Application
    Filed: August 26, 2021
    Publication date: October 27, 2022
    Inventors: Ching-Huan LIAO, Yi-Yu TSAI
  • Patent number: 10598977
    Abstract: A display apparatus including a display, a prism module and a filter layer is provided. The prism module is disposed on the display. The prism module includes a transparent substrate and a plurality of prism structures. The prism structures are located on the transparent substrate, and a plurality of tips of the prism structures is located away from the display. The filter layer is disposed between the prism module and the display, or the prism module is disposed between the filter layer and the display.
    Type: Grant
    Filed: July 27, 2017
    Date of Patent: March 24, 2020
    Assignee: CHAMP VISION DISPLAY INC.
    Inventors: Jhong-Hao Wu, Chin-Ku Liu, Fa-Chih Liu, Yi-Yu Tsai, Hsin-Hung Lee, Chiao-Chih Yang
  • Patent number: 10502872
    Abstract: A display apparatus including a first display unit, a second display unit and a strip-shaped lens is provided. The first display unit has a first display area and a first edge area. The second display unit has a second display area and a second edge area. The strip-shaped lens is disposed on a boundary of the first edge area and the second edge area. The strip-shaped lens includes a light entering surface, a light emitting surface, a first stairs-shaped surface and a second stairs-shaped surface. The first stairs-shaped surface is located above a part of the first display area adjacent to the boundary, and connects the light entering surface and the light emitting surface. The second stairs-shaped surface is located above a part of the second display area adjacent to the boundary, and connects the light entering surface and the light emitting surface.
    Type: Grant
    Filed: December 25, 2016
    Date of Patent: December 10, 2019
    Assignee: Coretronic Corporation
    Inventors: Yi-Yu Tsai, Hsin-Hung Lee, Huei-Tzu Lin, Chiao-Chih Yang
  • Patent number: 10437098
    Abstract: A reflective display apparatus includes an LGP, at least one light-emitting element, a reflective display panel, a first light-absorbing portion, and a first gel layer. The light-emitting element is beside a light-incident surface of the LGP. The LGP has a first region and a second region. The first region is between the light-emitting element and the second region. The reflective display panel is under a bottom surface of the LGP. The first light-absorbing portion is at a side of one of a bottom surface and a top surface of the LGP. The first gel layer is between the first light-absorbing portion and the LGP. The light-absorbing portion is in the first region. A display region of the reflective display panel is in the second region. In the first region, the bottom surface or the top surface where the first light-absorbing portion is disposed is a plane surface.
    Type: Grant
    Filed: November 1, 2018
    Date of Patent: October 8, 2019
    Assignee: Coretronic Corporation
    Inventors: Hsin-Hung Lee, Yi-Yu Tsai
  • Patent number: 10394075
    Abstract: A transparent display device includes a transmissive light valve panel, a transparent plate and at least one light emitting assembly. The transmissive light valve panel has a display surface. The transparent plate is disposed with respect to the transmissive light valve panel to form an optical space between the transparent plate and the transmissive light valve panel. The at least one light emitting assembly is disposed beside the optical space and adapted to generate light into the optical space. A light pattern of the light emitted from the light emitting assembly and directed to the optical space has at least one maximum peak in an angular range of ±15° with respect to a direction parallel to the display surface of the transmissive light valve panel.
    Type: Grant
    Filed: August 11, 2017
    Date of Patent: August 27, 2019
    Assignee: Coretronic Corporation
    Inventors: Hsin-Hung Lee, Yi-Yu Tsai, Chiao-Chih Yang
  • Publication number: 20190137798
    Abstract: A reflective display apparatus includes an LGP, at least one light-emitting element, a reflective display panel, a first light-absorbing portion, and a first gel layer. The light-emitting element is beside a light-incident surface of the LGP. The LGP has a first region and a second region. The first region is between the light-emitting element and the second region. The reflective display panel is under a bottom surface of the LGP. The first light-absorbing portion is at a side of one of a bottom surface and a top surface of the LGP. The first gel layer is between the first light-absorbing portion and the LGP. The light-absorbing portion is in the first region. A display region of the reflective display panel is in the second region. In the first region, the bottom surface or the top surface where the first light-absorbing portion is disposed is a plane surface.
    Type: Application
    Filed: November 1, 2018
    Publication date: May 9, 2019
    Applicant: Coretronic Corporation
    Inventors: Hsin-Hung Lee, Yi-Yu Tsai
  • Publication number: 20180275449
    Abstract: A display apparatus including a display, a prism module and a filter layer is provided. The prism module is disposed on the display. The prism module includes a transparent substrate and a plurality of prism structures. The prism structures are located on the transparent substrate, and a plurality of tips of the prism structures is located away from the display. The filter layer is disposed between the prism module and the display, or the prism module is disposed between the filter layer and the display.
    Type: Application
    Filed: July 27, 2017
    Publication date: September 27, 2018
    Applicant: CHAMP VISION DISPLAY INC.
    Inventors: Jhong-Hao Wu, Chin-Ku Liu, Fa-Chih Liu, Yi-Yu Tsai, Hsin-Hung Lee, Chiao-Chih Yang
  • Patent number: 9958598
    Abstract: A light source module includes a light guide plate (LGP), at least one light emitting element, a reflector, and a plurality of spacer units. The LGP has a first surface, a second surface opposite to the first surface, a light incident surface connecting the first surface and the second surface, and a plurality of optical microstructures. The light emitting element is located adjacent to the light incident surface. The reflector is adhered to the second surface through an adhesive gel. The spacer units are located between the LGP and the reflector, and sizes of the spacer units are larger than or equal to 1 micrometer. The adhesive gel includes a first adhesive gel and a second adhesive gel. The first adhesive gel is located between the spacer units and the LGP, and the second adhesive gel is located between the spacer units and the reflector.
    Type: Grant
    Filed: March 13, 2016
    Date of Patent: May 1, 2018
    Assignee: Young Lighting Technology Inc.
    Inventors: Hsin-Hung Lee, Yi-Yu Tsai, Chiao-Chih Yang