Patents by Inventor Hsueh-Fang Yeh

Hsueh-Fang Yeh 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: 10990795
    Abstract: The disclosure provides a fingerprint sensing device, including a glass cover plate, a display panel, a fingerprint sensing module, a liquid crystal layer module, and a control circuit. The display panel is disposed below the glass cover plate, and provides illumination light to a finger. The fingerprint sensing module is disposed below the glass cover plate, and senses light reflected by the finger. The liquid crystal layer module is disposed on the fingerprint sensing module. The control circuit is coupled to the liquid crystal layer module, and drives the liquid crystal layer module to focus the illumination light to the finger or focus the light reflected by the finger to the fingerprint sensing module.
    Type: Grant
    Filed: February 15, 2020
    Date of Patent: April 27, 2021
    Assignees: Egis Technology Inc., Igistec Co., Ltd.
    Inventors: Hsueh-Fang Yeh, Ming-Yuan Cheng, Chung-Yi Wang, Yu-Hsuan Lin
  • Publication number: 20200311372
    Abstract: The disclosure provides a fingerprint sensing device, including a glass cover plate, a display panel, a fingerprint sensing module, a liquid crystal layer module, and a control circuit. The display panel is disposed below the glass cover plate, and provides illumination light to a finger. The fingerprint sensing module is disposed below the glass cover plate, and senses light reflected by the finger. The liquid crystal layer module is disposed on the fingerprint sensing module. The control circuit is coupled to the liquid crystal layer module, and drives the liquid crystal layer module to focus the illumination light to the finger or focus the light reflected by the finger to the fingerprint sensing module.
    Type: Application
    Filed: February 15, 2020
    Publication date: October 1, 2020
    Applicants: Egis Technology Inc., Igistec Co., Ltd.
    Inventors: Hsueh-Fang Yeh, Ming-Yuan Cheng, Chung-Yi Wang, Yu-Hsuan Lin
  • Patent number: 10007168
    Abstract: A liquid crystal lens including a first substrate, a first electrode disposed on the first substrate, a second electrode disposed on the first substrate, a first conductive pattern disposed on the first substrate, a second conductive pattern disposed on the first substrate, a second substrate disposed opposite to the first substrate, a common electrode disposed on the second substrate, and a liquid crystal layer located between the first substrate and the second substrate is provided. The first conductive pattern and the second conductive pattern are electrically connected between the first electrode and the second electrode. A resistivity of the first conductive pattern and a resistivity of the second conductive pattern are greater than a resistivity of the first electrode and a resistivity of the second electrode. At least a portion of the at least one second conductive pattern is disposed into the at least one first conductive pattern.
    Type: Grant
    Filed: February 14, 2017
    Date of Patent: June 26, 2018
    Assignee: AU OPTRONICS CORPORATION
    Inventors: Jia-Hong Ye, Hsueh-Fang Yeh
  • Publication number: 20170322474
    Abstract: A liquid crystal lens including a first substrate, a first electrode disposed on the first substrate, a second electrode disposed on the first substrate, a first conductive pattern disposed on the first substrate, a second conductive pattern disposed on the first substrate, a second substrate disposed opposite to the first substrate, a common electrode disposed on the second substrate, and a liquid crystal layer located between the first substrate and the second substrate is provided. The first conductive pattern and the second conductive pattern are electrically connected between the first electrode and the second electrode. A resistivity of the first conductive pattern and a resistivity of the second conductive pattern are greater than a resistivity of the first electrode and a resistivity of the second electrode. At least a portion of the at least one second conductive pattern is disposed into the at least one first conductive pattern.
    Type: Application
    Filed: February 14, 2017
    Publication date: November 9, 2017
    Inventors: Jia-Hong YE, Hsueh-Fang YEH
  • Patent number: 9482926
    Abstract: A lens structure and a 3D display device having the same are provided. The lens structure has unit regions. Each unit region includes upper and lower substrates, an anisotropic birefringence medium, center electrodes, edge electrodes and at least one set of side electrodes. The upper and the lower substrates are disposed oppositely to each other. The anisotropic birefringence medium is located between the upper and lower substrates. The center electrodes, the edge electrodes and the at least one set of side electrodes are located on the upper and lower substrates. The edge electrodes are disposed corresponding to the center electrodes. The at least one set of side electrodes are disposed between the center electrodes and the edge electrodes. An electric field distribution is formed between the center electrodes, the edge electrodes and the at least one set of side electrodes, so that the anisotropic birefringence medium constitutes a Fresnel lens.
    Type: Grant
    Filed: October 15, 2014
    Date of Patent: November 1, 2016
    Assignee: Au Optronics Corporation
    Inventors: I-Wei Chen, Hsueh-Fang Yeh, Sheng-Ju Ho, Cheng-Han Tsao, Ching-Tsun Chang, Chih-Yuan Huang
  • Publication number: 20150131013
    Abstract: A lens structure and a 3D display device having the same are provided. The lens structure has unit regions. Each unit region includes upper and lower substrates, an anisotropic birefringence medium, center electrodes, edge electrodes and at least one set of side electrodes. The upper and the lower substrates are disposed oppositely to each other. The anisotropic birefringence medium is located between the upper and lower substrates. The center electrodes, the edge electrodes and the at least one set of side electrodes are located on the upper and lower substrates. The edge electrodes are disposed corresponding to the center electrodes. The at least one set of side electrodes are disposed between the center electrodes and the edge electrodes. An electric field distribution is formed between the center electrodes, the edge electrodes and the at least one set of side electrodes, so that the anisotropic birefringence medium constitutes a Fresnel lens.
    Type: Application
    Filed: October 15, 2014
    Publication date: May 14, 2015
    Inventors: I-Wei Chen, Hsueh-Fang Yeh, Sheng-Ju Ho, Cheng-Han Tsao, Ching-Tsun Chang, Chih-Yuan Huang