Patents by Inventor Chia-Hsuan Tai

Chia-Hsuan Tai 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: 9645464
    Abstract: A display may have upper and lower display layers. A layer of liquid crystal material may be interposed between the upper and lower display layers. The display layers may have substrates. The display layers may include a color filter layer having an array of color filter elements on a glass substrate and a thin-film transistor layer having a layer of thin-film transistor circuitry on a glass substrate. Dielectric layers within the display layers such as dielectric layers within the thin-film transistor layer may have differing indices of refraction. Reflections and color shifts due to index of refraction discontinuities may be minimized by interposing graded index dielectric layers between adjacent layers with different indices. The graded index layers may be formed from structures with a continuously varying index of refraction or structures with a step-wise varying index of refraction.
    Type: Grant
    Filed: September 10, 2015
    Date of Patent: May 9, 2017
    Assignee: Apple Inc.
    Inventors: Byung Duk Yang, Chia Hsuan Tai, Hiroshi Osawa, Kyung Wook Kim, Ming-Chin Hung, Shang-Chih Lin, Shih Chang Chang, Yu Cheng Chen, Yuan Chen
  • Patent number: 9482905
    Abstract: A display may have a color filter layer and a thin-film transistor layer. A layer of liquid crystal material may be located between the color filter layer and the thin-film transistor layer. Column spacers may be formed on the color filter layer to maintain a desired gap between the color filter and thin-film transistor layers. Support pads may be used to support the column spacers. The column spacers and support pads may have comparable thicknesses. Different column spacers may be located at different portions of the support pads to allow the support pad size to be reduced while ensuring adequate support.
    Type: Grant
    Filed: June 18, 2014
    Date of Patent: November 1, 2016
    Assignee: Apple Inc.
    Inventors: Zhibing Ge, Yeon Sik Ham, Cheng Chen, Chia Hsuan Tai, Enkhamgalan Dorjgotov, Sang Un Choi, Shih-Chyuan Fan Jiang
  • Publication number: 20160259218
    Abstract: A layer of liquid crystal material may be interposed between display layers. The display layers may include thin-film transistor circuitry having subpixel electrodes for applying electric fields to subpixel portions of the layer of liquid crystal material. Subpixels of different colors may have different shapes and may have different liquid crystal layer thicknesses. These subpixel differences may be configured to slow the switching speed of subpixels of a certain color relative to other subpixels to reduce color motion blur when an object is moved across a black or colored background. The subpixels may have chevron shapes. Subpixels of a first color may have chevron shapes that are less bent than subpixels of second and third colors. In configurations with varying liquid crystal layer thicknesses, the subpixels of the first color may have thicker liquid crystal layers than the subpixels of the second and third colors.
    Type: Application
    Filed: November 20, 2015
    Publication date: September 8, 2016
    Inventors: Yuan Chen, Zhibing Ge, Adria Fores Herranz, Chia Hsuan Tai, Hossein Nemati, Jun Jiang, Cheng Chen
  • Publication number: 20160259215
    Abstract: A layer of liquid crystal material may be interposed between display layers. The display layers may include thin-film transistor circuitry having subpixel electrodes for applying electric fields to subpixel portions of the layer of liquid crystal material. Subpixels of different colors may have different shapes and may have different liquid crystal layer thicknesses. These subpixel differences may be configured to slow the switching speed of subpixels of a certain color relative to other subpixels to reduce color motion blur when an object is moved across a black or colored background. The subpixels may have chevron shapes. Subpixels of a first color may have chevron shapes that are less bent than subpixels of second and third colors. In configurations with varying liquid crystal layer thicknesses, the subpixels of the first color may have thicker liquid crystal layers than the subpixels of the second and third colors.
    Type: Application
    Filed: September 10, 2015
    Publication date: September 8, 2016
    Inventors: Yuan Chen, Zhibing Ge, Adria Fores Herranz, Chia Hsuan Tai, Hossein Nemati, Jun Jiang, Cheng Chen
  • Publication number: 20160209691
    Abstract: A display may have upper and lower display layers. A layer of liquid crystal material may be interposed between the upper and lower display layers. The display layers may have substrates. The display layers may include a color filter layer having an array of color filter elements on a glass substrate and a thin-film transistor layer having a layer of thin-film transistor circuitry on a glass substrate. Dielectric layers within the display layers such as dielectric layers within the thin-film transistor layer may have differing indices of refraction. Reflections and color shifts due to index of refraction discontinuities may be minimized by interposing graded index dielectric layers between adjacent layers with different indices. The graded index layers may be formed from structures with a continuously varying index of refraction or structures with a step-wise varying index of refraction.
    Type: Application
    Filed: September 10, 2015
    Publication date: July 21, 2016
    Inventors: Byung Duk Yang, Chia Hsuan Tai, Hiroshi Osawa, Kyung Wook Kim, Ming-Chin Hung, Shang-Chih Lin, Shih Chang Chang, Yu Cheng Chen, Yuan Chen
  • Publication number: 20150370115
    Abstract: A display may have a color filter layer and a thin-film transistor layer. A layer of liquid crystal material may be located between the color filter layer and the thin-film transistor layer. Column spacers may be formed on the color filter layer to maintain a desired gap between the color filter and thin-film transistor layers. Support pads may be used to support the column spacers. The column spacers and support pads may have comparable thicknesses. Different column spacers may be located at different portions of the support pads to allow the support pad size to be reduced while ensuring adequate support.
    Type: Application
    Filed: June 18, 2014
    Publication date: December 24, 2015
    Inventors: Zhibing Ge, Yeon Sik Ham, Cheng Chen, Chia Hsuan Tai, Enkhamgalan Dorjgotov, Sang Un Choi, Shih-Chyuan Fan Jiang
  • Patent number: 8698989
    Abstract: A viewing angle switchable liquid crystal display panel includes a first substrate, a second substrate, a liquid crystal layer disposed between the first substrate and the second substrate, a plurality of color sub-pixels and a plurality of viewing angle control (VAC) pixels. The liquid crystal layer includes liquid crystal molecules sandwiched between the first substrate and the second substrate. The liquid crystal molecules of each color sub-pixel include twisted nematic liquid crystal molecules. Each of the color sub-pixels includes a first pixel electrode disposed on an inner surface of the first substrate, and a second pixel electrode disposed on an inner surface of the second substrate. Each of the viewing angle control pixels includes a first electrode and a second electrode disposed on the inner surface of the first substrate, and a third electrode disposed on the inner surface of the second substrate.
    Type: Grant
    Filed: January 18, 2011
    Date of Patent: April 15, 2014
    Assignee: AU Optronics Corp.
    Inventors: Norio Sugiura, Chao-Wei Yeh, Chia-Hsuan Tai, Chien-Huang Liao, Wen-Hao Hsu
  • Publication number: 20120013825
    Abstract: A viewing angle switchable liquid crystal display panel includes a first substrate, a second substrate, a liquid crystal layer disposed between the first substrate and the second substrate, a plurality of color sub-pixels and a plurality of viewing angle control (VAC) pixels. The liquid crystal layer includes liquid crystal molecules sandwiched between the first substrate and the second substrate. The liquid crystal molecules of each color sub-pixel include twisted nematic liquid crystal molecules. Each of the color sub-pixels includes a first pixel electrode disposed on an inner surface of the first substrate, and a second pixel electrode disposed on an inner surface of the second substrate. Each of the viewing angle control pixels includes a first electrode and a second electrode disposed on the inner surface of the first substrate, and a third electrode disposed on the inner surface of the second substrate.
    Type: Application
    Filed: January 18, 2011
    Publication date: January 19, 2012
    Inventors: Norio Sugiura, Chao-Wei Yeh, Chia-Hsuan Tai, Chien-Huang Liao, Wen-Hao Hsu
  • Publication number: 20110261299
    Abstract: A three-dimensional display includes a liquid crystal display (LCD) panel, a polarizer, a composite optical film, a phase retarder, and an adhesive layer. The LCD panel has a display surface and a rear surface opposite to the display surface. The polarizer is disposed on the rear surface. The composite optical film is disposed on the display surface. The composite optical film includes a quarter wave plate and at least one optical film located between the LCD panel and the quarter wave plate. The phase retarder has a plurality of phase retardation patterns separated from one another, and phase retardation of each phase retardation pattern is ?/2. The adhesive layer is disposed between the composite optical film and the phase retarder, and the phase retarder adheres to the quarter wave plate through the adhesive layer.
    Type: Application
    Filed: April 12, 2011
    Publication date: October 27, 2011
    Applicant: AU OPTRONICS CORPORATION
    Inventors: Chia-Hsuan Tai, Chao-Yuan Chen, Shen-Liang Chen, Wei-Ching Hsu, Norio Sugiura
  • Publication number: 20060132702
    Abstract: A method of manufacturing an LCD panel, which the LCD panel includes a first substrate and a second substrate, includes following steps of: 1) forming an alignment layer on the first and second substrates, the alignment layer comprising PI and PAA; 2) post baking to convert PAA into PI, wherein the imidization rate of the alignment layer after the post baking is between 70% and 90%; 3) spreading a sealant in the margin area of the first substrate; 4) dropping a liquid crystal material upon the first substrate; and 5) gluing the first substrate and the second substrate under a low-pressure condition.
    Type: Application
    Filed: December 14, 2005
    Publication date: June 22, 2006
    Inventors: Te-Sheng Chen, Kai-Neng Yang, Chia-Hsuan Tai