Patents by Inventor Hung-Tung Wang

Hung-Tung Wang 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: 7239333
    Abstract: According to the method, a trench structure is formed in a substrate. LED arrays and driver ICs are located in the corresponding trenches. An insulating layer is formed over the substrate, the LED arrays and the driver ICs. A photolithography process forms an electrical connection structure between the LED arrays and the driver ICs. Then, a die-cutting process cuts out individual units. These units are fixed in a PCB and an electrical connection structure is formed between these units and input/output pins on the PCB.
    Type: Grant
    Filed: January 21, 2005
    Date of Patent: July 3, 2007
    Assignee: Opto Tech Corporation
    Inventors: Shun-Lih Tu, Chih-Hung Chuang, Huai-Ku Chung, Chia-Feng Yang, Cheng-Wei Yang, Tsu-An Han, Hung-Tung Wang, Chien-Chen Hung
  • Publication number: 20070081340
    Abstract: The present invention provides a light source module with high efficiency, super bright LEDs featured with efficient heat dissipation. This invention comprises a printed circuit board installed with an LED array which is composed of multiple emitter LEDs. To achieve efficient effect for heat dissipation, there is more than one hole punctured on the printed circuit board right underneath each emitter LED. The surface of each punctured hole is coated with thermal conductive layer such that the accumulative heat generated by the high power LEDs can be effectively dissipated through the conductive layer.
    Type: Application
    Filed: October 7, 2005
    Publication date: April 12, 2007
    Inventors: Huai-Ku Chung, Cheng-Wei Yang, Chien-Hung Lin, Shun-Lih Tu, Hung-Tung Wang
  • Publication number: 20070081339
    Abstract: The present invention provides an LED light source module design featured with efficient heat dissipation. This invention comprises a printed circuit board of thickness less than 400 ?m, installed with an LED array which is composed of multiple high powers, super bright emitter LEDs. The thinner version of the printed circuit provides shorter route for faster thermal conductivity; and thus promotes the efficiency for heat dissipation. With its bendable flexibility, the thinner version of the printed circuit board can accommodate and well affix to the inner side of any shape of lighting fixture rack. This further enhances the heat dissipation for varieties of lighting fixture rack design.
    Type: Application
    Filed: October 7, 2005
    Publication date: April 12, 2007
    Inventors: Huai-Ku Chung, Cheng-Wei Yang, Chien-Hung Lin, Shun-Lih Tu, Hung-Tung Wang
  • Publication number: 20060132578
    Abstract: According to the method, a trench structure is formed in a substrate. LED arrays and driver ICs are located in the corresponding trenches. An insulating layer is formed over the substrate, the LED arrays and the driver ICs. A photolithography process forms an electrical connection structure between the LED arrays and the driver ICs. Then, a die-cutting process cuts out individual units. These units are fixed in a PCB and an electrical connection structure is formed between these units and input/output pins on the PCB.
    Type: Application
    Filed: January 21, 2005
    Publication date: June 22, 2006
    Inventors: Shun-Lih Tu, Chih-Hung Chuang, Huai-Ku Chung, Chia-Feng Yang, Cheng-Wei Yang, Tsu-An Han, Hung-Tung Wang, Chien-Chen Hung
  • Publication number: 20060049475
    Abstract: The present invention relates to a high-power LED array. The high-power LED array has a printed circuit board (PCB), anodes, cathodes, high-power LED dies, packing materials, and lenses. The PCB has cavities arranged in an array. One anode and one cathode are located in each cavity. The anode and the cathode are correspondingly connected to the anode and cathode in the neighboring cavities. At least one high-power LED die is placed in the cavity and connected to the anode and the cathode in series or in parallel. The cavity is filled with packing material to secure the high-power LED die. Lenses are placed on the cavities to focus light emitted by the high-power LED die.
    Type: Application
    Filed: March 8, 2005
    Publication date: March 9, 2006
    Inventors: Hung-Tung Wang, Chien-Chen Hung, Shun-Lih Tu, Dennis Yen, Chih-Hung Chuang, Huai-Ku Chung, Cheng-Wei Yang, Tsu-An Han
  • Patent number: 6208073
    Abstract: A smart light emitting diode cluster and system includes a central processing unit (CPU) and a plurality of LED cluster strings, each comprising a plurality of LED cluster connected in series. Each LED cluster includes an LED drive circuit and a plurality of LEDs. The CPU receives external input image signal, and then desired control signal and image data are sent to the LED cluster strings by appropriate processing. The control signal is used to switch the LEDs in the cluster to generate desired image and related color variation. The control signal and image data are transferred to the next LED cluster by the present LED drive circuit. In this manner, the control signal and image data are progressively transferred from the first to the last cluster so that a whole image with color variation can be displayed by all the LEDs in the system.
    Type: Grant
    Filed: September 15, 1998
    Date of Patent: March 27, 2001
    Assignee: Opto Tech Corp.
    Inventors: Hung-Tung Wang, Shun-Chih Chen, Chih-Yuan Yen, Chun-Fang Hsiao, Fang-Shih Chuang, Chien-Chen Hung