Patents by Inventor Yu-Tang Chang

Yu-Tang Chang 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: 20240127767
    Abstract: A display device and a projector are provided. The display device includes a pixel light-emitting panel and multiple color conversion panels. The pixel light-emitting panel includes an N1 number of light-emitting pixel units distributed in an array, and the light-emitting pixel units are driven to emit light through a driver. A first color conversion panel includes an N2 number of first color pixels and an N3 number of first transparent pixels. The first color pixels and the first transparent pixels are disposed relative to the light-emitting pixel units. A second color conversion panel includes an N4 number of second color pixels and an N5 number of second transparent pixels. The second color pixels and the second transparent pixels are disposed relative to the light-emitting pixel units. The lights generated by at least part of the light-emitting pixel units sequentially pass through the first color pixels and the second transparent pixels to achieve the color conversion.
    Type: Application
    Filed: December 15, 2022
    Publication date: April 18, 2024
    Applicant: Industrial Technology Research Institute
    Inventors: Hui-Tang Shen, Wei-Hung Kuo, Kai-Ling Liang, Chun-I Wu, Yu-Hsiang Chang
  • Patent number: 11950491
    Abstract: A semiconductor mixed material comprises an electron donor, a first electron acceptor and a second electron acceptor. The first electron donor is a conjugated polymer. The energy gap of the first electron acceptor is less than 1.4 eV. At least one of the molecular stackability, ?-?*stackability, and crystallinity of the second electron acceptor is smaller than the first electron acceptor. The electron donor system is configured to be a matrix to blend the first electron acceptor and the second electron acceptor. The present invention also provides an organic electronic device including the semiconductor mixed material.
    Type: Grant
    Filed: November 17, 2020
    Date of Patent: April 2, 2024
    Assignee: RAYNERGY TEK INCORPORATION
    Inventors: Yi-Ming Chang, Chuang-Yi Liao, Wei-Long Li, Yu-Tang Hsiao, Chun-Chieh Lee, Chia-Hua Li, Huei-Shuan Tan
  • Publication number: 20240099121
    Abstract: An organic optoelectronic device comprises a first electrode, an active layer and a second electrode. Active layer materials of the active layer comprise a block conjugated polymer materials which includes a structure of formula I: The polymer 1 is a p-type polymer with high energy gap, and the polymer 1 comprises a first electron donor and a first electron acceptor arranged alternately. The polymer 2 is a p-type polymer with low energy gap, and the polymer 2 comprises a second electron donor and a second electron acceptor arranged alternately. Wherein, o and p>0. The organic optoelectronic device of the present invention transfers carriers through the polymer 2 with low energy gap, and suppresses the recombination probability of carriers through the polymer 1 with high energy gap, thereby reducing the leakage current of the organic optoelectronic device.
    Type: Application
    Filed: August 18, 2023
    Publication date: March 21, 2024
    Inventors: Yi-Ming Chang, Chuang-Yi Liao, Yu-Tang Hsiao, CHENG-CHANG LAI
  • Patent number: 9058208
    Abstract: A method of scheduling a plurality of tasks for a plurality of memories in a memory system is disclosed. The method includes classifying each task among the plurality of tasks to a task type among a plurality of task types, disposing a plurality of task queues according to the plurality of task types wherein each task queue stores tasks to be executed within the plurality of tasks, assigning a priority for each task type among the plurality of task types, disposing at least one execution queue; and converting a first task stored in a first task queue among the plurality of task queues into at least one command to be stored in a first execution queue among the at least one execution queue, wherein the at least one command is executed according to the priority of a first task type corresponding to the first task queue.
    Type: Grant
    Filed: November 12, 2012
    Date of Patent: June 16, 2015
    Assignee: Skymedi Corporation
    Inventors: Yu-Tang Chang, Yi-Chun Liu
  • Publication number: 20140297921
    Abstract: A method of partitioning a physical block in a memory includes: determining a sub-block size according to a data length of a sequential write and a block size; partitioning the physical block into sub-blocks, each having a size equal to the sub-block size; and mapping logical blocks to the sub-blocks.
    Type: Application
    Filed: March 26, 2013
    Publication date: October 2, 2014
    Applicant: SKYMEDI CORPORATION
    Inventor: Yu-Tang Chang
  • Publication number: 20140137128
    Abstract: A method of scheduling a plurality of tasks for a plurality of memories in a memory system is disclosed. The method includes classifying each task among the plurality of tasks to a task type among a plurality of task types, disposing a plurality of task queues according to the plurality of task types wherein each task queue stores tasks to be executed within the plurality of tasks, assigning a priority for each task type among the plurality of task types, disposing at least one execution queue; and converting a first task stored in a first task queue among the plurality of task queues into at least one command to be stored in a first execution queue among the at least one execution queue, wherein the at least one command is executed according to the priority of a first task type corresponding to the first task queue.
    Type: Application
    Filed: November 12, 2012
    Publication date: May 15, 2014
    Applicant: SKYMEDI CORPORATION
    Inventors: Yu-Tang Chang, Yi-Chun Liu
  • Patent number: 7770805
    Abstract: The invention relates to a method for coding a two dimensional (2D) optical identification (OID) with the same gray level and a printing product thereof. The printing product includes a 2D-OID, which includes a positioning block and a plurality of data coding blocks. The positioning block has a plurality of specific patterns arranged as an N×M matrix, wherein the specific patterns along a first edge thereof and the specific patterns along a second edge thereof are filled. The data coding blocks are disposed around the positioning block and include the specific patterns arranged as the N×M matrix, wherein the specific pattern in a center of the data coding blocks is filled. A specific number of the remaining specific patterns in each data coding block are filled to serve as a code for representation of data.
    Type: Grant
    Filed: December 30, 2008
    Date of Patent: August 10, 2010
    Assignee: Generalplus Technology Inc.
    Inventors: Tung-Tsai Liao, Shih-Chien Lin, Yu-Tang Chang
  • Publication number: 20100006657
    Abstract: The invention relates to a method for coding a two dimensional (2D) optical identification (OID) with the same gray level and a printing product thereof. The printing product includes a 2D-OID, which includes a positioning block and a plurality of data coding blocks. The positioning block has a plurality of specific patterns arranged as an N×M matrix, wherein the specific patterns along a first edge thereof and the specific patterns along a second edge thereof are filled. The data coding blocks are disposed around the positioning block and include the specific patterns arranged as the N×M matrix, wherein the specific pattern in a center of the data coding blocks is filled. A specific number of the remaining specific patterns in each data coding block are filled to serve as a code for representation of data.
    Type: Application
    Filed: December 30, 2008
    Publication date: January 14, 2010
    Inventors: Tung-Tsai LIAO, Shin-Chien Lin, Yu-Tang Chang
  • Publication number: 20090278823
    Abstract: An image frame regulation system includes a display module a timing controller and the timing converter. The timing controller is coupled to the display module. The timing controller outputs image data to the display module and outputs a timing control command. The timing control command includes a vertical sync signal, a horizontal sync signal and a pixel enabling signal. The timing converter is coupled between the timing controller and the display module to receive the timing control command and adjusts a period of the pixel enabling signal in the timing control command to output an adjustable timing control command to the display module, so as to control the display module to display an output image frame corresponding to the image data at a central area of a screen of the display module.
    Type: Application
    Filed: May 9, 2008
    Publication date: November 12, 2009
    Inventors: Cheng-Yueh Kuo, Meng-Ta Yu, Yu-Tang Chang