Patents by Inventor Cheng Yeh

Cheng 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).

  • Publication number: 20150036080
    Abstract: An optical film and a display device having the same are provided. The optical film has a light input face, a light output face opposite to the light input face, and a light-output structure disposed on the light output face. The light-output structure includes a plurality of light output microstructures such as prisms disposed side by side along a first direction on the light output face. Each prism has a first quadrilateral cross section parallel to the first direction. A first side of the quadrilateral cross section is connected to the light output face and includes a first angle with the light output face, wherein the first angles of the prisms continuously arranged have angle values varying in a periodic manner.
    Type: Application
    Filed: July 30, 2013
    Publication date: February 5, 2015
    Applicants: University of Central Florida Research Foundation Inc., AU Optronics Corporation
    Inventors: Jin Yan, Da-Ming Xu, Hui-Chuan Cheng, Shin-Tson Wu, Yi-Fen Lan, Cheng-Yeh Tsai
  • Patent number: 8947618
    Abstract: A blue phase liquid crystal display device includes a backlight module and a blue phase liquid crystal display panel. The backlight module includes a plurality of light sources. The light sources generate a plurality of primary color lights with different bands. The blue phase liquid crystal display panel includes a blue phase liquid crystal layer. The blue phase liquid crystal layer includes a plurality of blue phase liquid crystal molecules and a plurality of chiral dopants. The blue phase liquid crystal layer has a reflection band. The reflection band is located between the bands of two adjacent primary color lights.
    Type: Grant
    Filed: March 27, 2012
    Date of Patent: February 3, 2015
    Assignee: Au Optronics Corporation
    Inventors: Cheng-Yeh Tsai, Tai-Hsiang Huang
  • Patent number: 8933915
    Abstract: A display apparatus, an integrated circuit and method thereof are disclosed. The display apparatus includes a frame buffer, a controller circuit, and a display driver circuit. The frame buffer is configured to retain a plurality of image frames to be displayed. The controller circuit, coupled to the frame buffer, is configured to determine whether a change in the image frames has occurred and whether a refresh time is expired. The display driver circuit, operatively coupled to the frame buffer and adapted to couple to an active display device, is configured to receive the image frames to be displayed from the frame buffer and dynamically refreshing the active display device when the change is determined or when a refresh time is expired.
    Type: Grant
    Filed: August 13, 2012
    Date of Patent: January 13, 2015
    Assignee: HTC Corporation
    Inventors: Hsi-Chieh Peng, Cheng Lo, Jih-Hsin Huang, Hsi-Cheng Yeh, Chia-Chu Ho
  • Patent number: 8927330
    Abstract: Disclosed herein is a method for manufacturing a metal-oxide thin film transistor. The method includes the steps of: (a1) forming a gate electrode on a substrate; (a2) forming a gate insulating layer over the gate electrode; (a3) forming a metal-oxide semiconductor layer having a channel region on the gate insulating layer; (a4) forming a source electrode and a drain electrode on the metal-oxide semiconductor layer, wherein the source electrode is spaced apart from the drain electrode by a gap exposing the channel region; (a5) forming a mobility-enhancing layer on the channel region, wherein the mobility-enhancing layer is not in contact with the source electrode and the drain electrode; and (a6) annealing the metal-oxide semiconductor layer and the mobility-enhancing layer in an environment at a temperature of about 200° C. to 350° C.
    Type: Grant
    Filed: August 13, 2012
    Date of Patent: January 6, 2015
    Assignee: E Ink Holdings Inc.
    Inventors: Hsiao-Wen Zan, Chuang-Chuang Tsai, Chun-Cheng Yeh, Liang-Hao Chen
  • Patent number: 8922739
    Abstract: A liquid crystal display includes an upper substrate, a lower substrate, a liquid crystal layer disposed between the upper and lower substrates and including liquid crystal molecules with optical isotropicity, a first polarizer disposed on a surface of the upper substrate, having a first polarization direction, a second polarizer disposed on a surface of the lower substrate, having a second polarization direction, and at least one pixel region defined on the lower substrate. The pixel region includes at least one pixel electrode disposed on the lower substrate, the pixel electrode extending along a first direction in the pixel region and a majority portion of an edge of the pixel electrode substantially being parallel to at least one of the first polarization direction and the second polarization direction.
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: December 30, 2014
    Assignees: AU Optronics Corp., University of Central Florida Research Foundation Inc.
    Inventors: Yi-Fen Lan, Cheng-Yeh Tsai, Shin-Tson Wu, Yi-Fan Liu
  • Publication number: 20140347717
    Abstract: An electrophoretic display panel includes a driving substrate and an electrophoretic display substrate. The driving substrate includes a first base material, driving electrode patterns, conductive lines, and a shielding layer. The first base material has a first configuration region and a second configuration region. The driving electrode patterns are located inside the first configuration region. The conductive lines are respectively connected to the driving electrode patterns and respectively extend from the first configuration region to the second configuration region. The shielding layer shields the conductive lines and exposes the driving electrode patterns. The electrophoretic display substrate includes a second base material located opposite to the first base material, an electrode layer, and display media. The electrode layer is disposed on the second base material and between the first and second base materials.
    Type: Application
    Filed: August 7, 2014
    Publication date: November 27, 2014
    Inventors: Hsu-Cheng Yeh, Ming-Chuan Hung
  • Patent number: 8897386
    Abstract: A method for reducing the quantization effect of precoding operations utilizing a finite codebook in MIMO systems is provided. First, at the receiver side, downlink channel state information is obtained and a set of indices of precoding matrices within a plurality of finite codebooks are selected accordingly. The selected indices of precoding matrices for each of the finite codebooks and a set of scalar coefficients are transmitted from the receiver to the transmitter. Thereafter, at the transmitter side, at least a first and a second refined precoding matrices are generated based on the selected set of indices of precoding matrices for all of the finite codebooks, and the one or more scalar coefficients and a final precoding matrix is generated at least based on the first refined precoding matrix and the second refined precoding matrix. The final precoding matrix is applied for transmission between the transmitter and the receiver.
    Type: Grant
    Filed: June 21, 2011
    Date of Patent: November 25, 2014
    Assignee: HTC Corporation
    Inventors: Ping-Cheng Yeh, Ling-San Meng, Pang-Chang Lan, Chih-Yao Wu, Yu-Chih Jen
  • Publication number: 20140300847
    Abstract: A display apparatus including a display panel, a first polarizer and a second polarizer is provided. The display panel includes a pixel array substrate, an opposite substrate and a display medium. The pixel array substrate includes a plurality of pixel units. Each pixel unit includes a first electrode and a second electrode. The first electrode and the second electrode are alternately arranged and a lateral electric field is existed between the first electrode and the second electrode. The opposite substrate is disposed opposite to the pixel array substrate. The display medium is disposed between the pixel array substrate and the opposite substrate. The first polarizer is disposed on the pixel array substrate. The second polarizer is disposed on the opposite substrate. An included angle between an optical axis of the first polarizer and an optical axis of the second polarizer is 90°±?, and ? is 1° to 9°.
    Type: Application
    Filed: December 9, 2013
    Publication date: October 9, 2014
    Applicants: University of Central Florida Research Foundation , Inc., Au Optronics Corporation
    Inventors: Yi-Fan Liu, Shin-Tson Wu, Yi-Fen Lan, Cheng-Yeh Tsai
  • Patent number: 8849001
    Abstract: A voxel-based transformation method includes: a) obtaining a MRI dataset in a subject space associated with subject voxel coordinates, subject sampling directions, and subject voxel spin amounts, and a dataset of a co-registration template associated with template voxel coordinates, each subject voxel coordinate corresponding to a template voxel coordinate according to a mapping function; b) through an inverse of the mapping function, obtaining subject voxel coordinates and a Jacobian matrix; and c) obtaining template voxel spin amounts, each being a function of a template sampling direction and a template voxel coordinate, using the Jacobian matrix and image data.
    Type: Grant
    Filed: June 15, 2012
    Date of Patent: September 30, 2014
    Assignee: National Taiwan University
    Inventors: Isaac Wen-Yih Tseng, Fang-Cheng Yeh
  • Publication number: 20140263469
    Abstract: A lightweight applicator system for efficient extrusive dispensing of work material from a cartridge is provided. The applicator system includes a body having a cartridge frame portion coupled to a base frame portion. The cartridge frame portion includes first and second elongate frame members projecting longitudinally from a bracing member extending transversely therebetween to define a cartridge loading compartment. At least a portion of the bracing member is received in conformed manner by the base frame portion. A drive portion is coupled to the body, which includes a drive member selectively displaceable responsive to user actuation for extruding work material from a cartridge retained within the cartridge frame portion.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Inventors: Albert Lee, Huang-Cheng Yeh
  • Patent number: 8830058
    Abstract: A duet power-driven window shade comprises a controlling device to receive an external controlling signal, which is then analyzed, determined and compared with a preset value in a memory unit of the controlling device. A driving signal is output via a processing unit according to a comparing result. A power source then brings convolutions of a first covering sheet and a second covering sheet in sequence or concurrently for increasing the rolling speed and the using convenience and allowing the connecting members connected to the covering sheets to be efficiently rolled up without entanglement so that the duet power-driven window shade is smoothly operated.
    Type: Grant
    Filed: April 9, 2013
    Date of Patent: September 9, 2014
    Assignee: Bintronic Enterprise Co., Ltd.
    Inventor: Wei-Cheng Yeh
  • Patent number: 8830432
    Abstract: The electrode structures in the display units of the liquid crystal display (LCD) panel described in the embodiments of the invention are formed by stacking the bottom electrodes, the insulation pattern layers, and the top electrodes. The width of each of the bottom electrodes is greater than the width of each of the top electrodes (i.e., the electrode structures have the protrusion-like shape). Therefore, the operating voltage can be effectively reduced, and the transmission rate can be improved.
    Type: Grant
    Filed: September 7, 2011
    Date of Patent: September 9, 2014
    Assignee: Au Optronics Corporation
    Inventors: Cheng-Yeh Tsai, Tai-Hsiang Huang
  • Patent number: 8824811
    Abstract: A portable electronic device is provided. The portable electronic device includes a processor for providing encoding data and an LCD module coupled to the processor. The processor includes an encoder for encoding a frame data to generate the encoding data. The LCD module includes a driver and an LCD coupled to the driver. The driver includes a decoder for decoding the encoding data to obtain an image data. The LCD displays the image data.
    Type: Grant
    Filed: March 6, 2012
    Date of Patent: September 2, 2014
    Assignee: HTC Corporation
    Inventors: Jih-Hsin Huang, Hsi-Chieh Peng, Cheng Lo, Hsi-Cheng Yeh
  • Patent number: 8812924
    Abstract: A method of handling a retransmission of a hybrid automatic repeat request scheme for a receiver in a communication system is disclosed. The method comprises receiving a first payload from a transmitter in the communication system, and feeding back a resource index to the transmitter, to indicate a size for a second payload in the next reception, when the receiver is unsuccessful to decode the first payload into a plurality of information bits, wherein the transmitter encodes the plurality of information bits into the first payload by using an error correction code.
    Type: Grant
    Filed: June 21, 2011
    Date of Patent: August 19, 2014
    Assignee: HTC Corporation
    Inventors: Yu-Chih Jen, Ping-Cheng Yeh, Chih-Yao Wu, Pang-Chang Lan, Ling-San Meng
  • Patent number: 8800871
    Abstract: A Radio Frequency Identification (RFID) assembly includes an RFID reader/writer having a first micro-USB (Universal-Serial-Bus) connector and a mobile phone having a second micro-USB connector configured to electrically connect to the first micro-USB connector. In one embodiment of the present disclosure, the RFID reader/writer includes a circuit board having a first processor and a first USB controller, and an antenna board stacked on the circuit board, wherein the first USB controller electrically connects the first processor and the first micro-USB connector, and the antenna board includes a reverse F-shaped antenna. In one embodiment of the present disclosure, the mobile phone includes a second processor, and a second USB controller electrically connecting the second processor and the second micro-USB connector.
    Type: Grant
    Filed: November 9, 2012
    Date of Patent: August 12, 2014
    Assignee: Microelectronics Technology, Inc.
    Inventors: Yao Cheng Yeh, Tung Yeh Chiang, Tsung Cheng Chen, Wei Hsuan Chen, Ming Tsang Chen, Chao Min Tsai, Chung Chieh Chao, Ya Chi Lee, Yen Ning Cheng, Ming Hsun Tu, Darryn Wayne Prince
  • Publication number: 20140218413
    Abstract: A pixel includes a first electrode, a second electrode and a third electrode. The first electrode and the second electrode are formed on a lower substrate. The third electrode is formed on an upper substrate and above a position between the first and second electrodes. Liquid crystals are formed between the upper and lower substrates. A method for driving the pixel includes providing a first data voltage to the first electrode, providing a second data voltage to the second electrode, and providing a common voltage to the third electrode. The common voltage is substantially the mean value of the first and second data voltages.
    Type: Application
    Filed: July 25, 2013
    Publication date: August 7, 2014
    Applicant: AU Optronics Corp.
    Inventors: Fang-Cheng Yu, Szu-Yu Lin, Cheng-Yeh Tsai
  • Publication number: 20140204898
    Abstract: A fast device discovery protocol with a high success rate for device-to-device (D2D) communication in LTE-A networks is proposed. With the proposed protocol, device discovery is done by monitoring a randomly transmitted beacon from other devices within a pre-defined period. In one embodiment, an eNB receives scheduling requests from D2D UEs and in response allocates a distributed uplink resource for random access of beacon transmission by the D2D UEs. The distributed resource is dynamically allocated based on the number of requesting D2D UEs, a discovery period, and a target discovery probability to minimize the required resource.
    Type: Application
    Filed: January 23, 2014
    Publication date: July 24, 2014
    Applicants: National Taiwan University, MEDIATEK Singapore Pte. Ltd.
    Inventors: Zhu-Jun Yang, Jie-Cheng Edward Huang, JR., Chun-Ting Chou, Hung-Yun Hsieh, Ping-Cheng Yeh, Chia-Chun Hsu
  • Publication number: 20140184991
    Abstract: A liquid crystal display includes an upper substrate, a lower substrate, a liquid crystal layer disposed between the upper and lower substrates and including liquid crystal molecules with optical isotropicity, a first polarizer disposed on a surface of the upper substrate, having a first polarization direction, a second polarizer disposed on a surface of the lower substrate, having a second polarization direction, and at least one pixel region defined on the lower substrate. The pixel region includes at least one pixel electrode disposed on the lower substrate, the pixel electrode extending along a first direction in the pixel region and a majority portion of an edge of the pixel electrode substantially being parallel to at least one of the first polarization direction and the second polarization direction.
    Type: Application
    Filed: December 28, 2012
    Publication date: July 3, 2014
    Applicants: University of Central Florida Research Foundation Inc., AU OPTRONICS CORP.
    Inventors: Yi-Fen Lan, Cheng-Yeh Tsai, Shin-Tson Wu, Yi-Fan Liu
  • Patent number: 8726963
    Abstract: An anti-vibrating tape dispenser of a carton sealing machine includes a stand erected on the carton sealing machine, a fixed shaft extended transversally from the stand, a sleeve provided for loading a tape and coaxially sheathed on the periphery of the fixed shaft, a slide mechanism installed on the stand and below the sleeve and including a slide rail slidably installed on a fixed rail, an abutting rod fixed onto the slide rail and extended in the same direction of the fixed shaft, an abutting roller sheathed on the abutting rod and abutted against the external periphery of the tape roller. As the external diameter of the tape roller varies, the abutting roller slides along the slide rail to abut against the external periphery of tape roller normally, and the abutting roller includes one-way bearings for limiting the abutting roller to rotate round the abutting rod in a direction only.
    Type: Grant
    Filed: May 18, 2012
    Date of Patent: May 20, 2014
    Inventor: Yen-Cheng Yeh
  • Patent number: 8648983
    Abstract: A method for fabricating a blue phase liquid crystal display is provided. A first substrate is arranged opposite to a second substrate, in which the first and second substrates include a first and a second electrode, respectively. A blue phase liquid crystal layer is sealed between the first substrate and the second substrate, in which the blue phase liquid crystal layer includes a positive blue phase liquid crystal and a monomer. A voltage is applied to the first electrode and the second electrode such that a vertical electric field is formed. The blue phase liquid crystal layer is illuminated with a light source such that the monomer performs polymerization to produce a polymer-stabilized positive blue phase liquid crystal. A blue phase liquid crystal display is also disclosed herein.
    Type: Grant
    Filed: September 13, 2010
    Date of Patent: February 11, 2014
    Assignee: Au Optronics Corporation
    Inventors: Cheng-Yeh Tsai, Tai-Hsiang Huang, Po-Lun Chen