Patents by Inventor Wen-Huang Liu

Wen-Huang Liu 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: 7154121
    Abstract: A light emitting device includes a micro-reflection structure carrier, which is formed by performing etching process on a carrier, a reflection layer, a light emitting layer, and a transparent adhesive layer, wherein the reflection layer is formed over the micro-reflection structure carrier and adheres to the light emitting layer through the transparent adhesive layer.
    Type: Grant
    Filed: October 29, 2003
    Date of Patent: December 26, 2006
    Assignee: Epistar Corporation
    Inventors: Min-Hsun Hsieh, Wen-Huang Liu
  • Publication number: 20060284205
    Abstract: A Flip-chip light-emitting device with integral micro-reflector. The flip-chip light-emitting device emits reflected light provided by a light-emitting layer. The micro-reflector reflects light that might otherwise be lost to internal refraction and absorption, so as to increase light-emitting efficiency.
    Type: Application
    Filed: August 16, 2006
    Publication date: December 21, 2006
    Inventor: Wen-Huang Liu
  • Patent number: 7095765
    Abstract: A light emitter includes an emitting stack, a first electrode, a second electrode and a voltage dependent resistor layer. The emitter stack has a first surface area and a second surface area. The first electrode is formed on the first surface area of the emitting stack. The second electrode is formed on the second surface area of the emitting stack. The voltage dependent resistor layer is connected to the first and second electrodes, and is formed during the formation of the light emitter thus improving the yield of the light emitter.
    Type: Grant
    Filed: May 9, 2003
    Date of Patent: August 22, 2006
    Assignee: Epistar Corporation
    Inventors: Wen-Huang Liu, Po-Chun Liu, Min-Hsun Hsieh, Tzu-Feng Tseng, Chen Ou
  • Publication number: 20060091419
    Abstract: A light emitting diode (LED) utilizes an adhesive layer to adhere a light emitting layer to a substrate. The LED further comprises an electrode buffer layer to enhance the adhesion between the electrode and the light emitting diode, and thus to improve the yield rate of the LED.
    Type: Application
    Filed: October 19, 2005
    Publication date: May 4, 2006
    Inventors: Chih-Chiang Lu, Ling-Chin Huang, Jen-Shui Wang, Wen-Huang Liu, Min-Hsun Hsieh
  • Publication number: 20060081857
    Abstract: A light emitting device having a circuit protection unit is provided. The circuit protection unit has a low-resistance layer and a potential barrier layer, wherein a barrier potential exists at the interface between the low-resistance layer and the potential barrier layer. The circuit protection unit is electrically connected with the light emitting device. When an electrostatic discharge or excessive forward current is occurred in the light emitting device, the circuit protection unit provides a rectifying function for preventing damages caused by static electricity or excessive forward current to the light emitting device.
    Type: Application
    Filed: September 8, 2005
    Publication date: April 20, 2006
    Inventors: Steve Hong, Jen-Shui Wang, Tzu-Feng Tseng, Ching-San Tao, Wen-Huang Liu, Min-Hsun Hsieh
  • Publication number: 20060078666
    Abstract: Methods and products are described having improved structural stability and which are particularly suitable for manufacture using coconut palm. Each product includes a core and a veneer laminated to form a product, and includes arrangements of the core pieces to provide improved structural stability. In one embodiment, elongated strips of palm having square cross-sections are laminated with parallel grains to form a core. In another embodiment, elongated strips of palm having rectangular cross-sections are laminated with parallel grains and with the long sides of the rectangles of adjoining strips abutting. A third embodiment of the present invention is a square flooring tile arranged from a plurality of core pieces arranged with the grain generally parallel to the edge of the core. The products can support a veneer or kerf as is suitable to particular uses.
    Type: Application
    Filed: December 29, 2004
    Publication date: April 13, 2006
    Inventors: Daniel Smith, Wen-Huang Liu
  • Patent number: 7008858
    Abstract: A light emitting diode having an adhesive layer and a reflective layer and a manufacturing method thereof featured by adhering together a light emitting diode stack and a substrate having a reflective metal layer by use of a transparent adhesive layer so that the light rays directed to the reflective metal layer can be reflected therefrom to improve the brightness of the light emitting diode.
    Type: Grant
    Filed: October 28, 2004
    Date of Patent: March 7, 2006
    Assignee: Epistar Corporation
    Inventors: Wen-Huang Liu, Tzu-Feng Tseng, Min-Hsun Hsieh, Ting-Wei Yeh, Jen-Shui Wang
  • Patent number: 7009217
    Abstract: A light emitting diode having an adhesive layer and a reflective layer and a manufacturing method thereof featured by adhering together a light emitting diode stack and a substrate having a reflective metal layer by use of a transparent adhesive layer so that the light rays directed to the reflective metal layer can be reflected therefrom to improve the brightness of the light emitting diode.
    Type: Grant
    Filed: October 27, 2004
    Date of Patent: March 7, 2006
    Assignee: Epistar Corporation
    Inventors: Wen-Huang Liu, Tzu-Feng Tseng, Min-Hsun Hsieh, Ting-Wei Yeh, Jen-Shui Wang
  • Patent number: 6987287
    Abstract: A light emitting diode having an adhesive layer and a reflective layer and a manufacturing method thereof featured by adhering together a light emitting diode stack and a substrate having a reflective metal layer by use of a transparent adhesive layer so that the light rays directed to the reflective metal layer can be reflected therefrom to improve the brightness of the light emitting diode.
    Type: Grant
    Filed: July 4, 2003
    Date of Patent: January 17, 2006
    Assignee: Epistar Corporation
    Inventors: Wen-Huang Liu, Tzu-Feng Tseng, Min-Hsun Hsieh, Ting-Wei Yeh, Jen-Shui Wang
  • Publication number: 20050224822
    Abstract: A light-emitting diode array includes a substrate, an adhesive layer formed on the substrate, and a plurality of electrically connected epitaxial light-emitting stack layer disposed on the adhesive layer. Each of the epitaxial light-emitting stack layer has a P-contact and an N-contact coplanar to the P-contact. The light-emitting diode array has improved heat ventilation characteristics.
    Type: Application
    Filed: March 11, 2005
    Publication date: October 13, 2005
    Inventor: Wen-Huang Liu
  • Publication number: 20050194587
    Abstract: Organic adhesive light-emitting device with ohmic metal bulge. The organic adhesive light-emitting device includes a conductive substrate, a light-emitting stack layer, a metal layer formed over the conductive substrate, a reflective layer formed over the light-emitting stack layer, and an organic adhesive layer having an ohmic metal bulge and an adhesive material around the ohmic metal bulge. The adhesive material bonds the metal layer and the reflective layer together, while the ohmic metal bulge forms ohmic contacts with the metal layer and the reflective layer. The configuration can simplify a light-emitting diode.
    Type: Application
    Filed: January 18, 2005
    Publication date: September 8, 2005
    Inventors: Min-Hsun Hsieh, Wen-Huang Liu, Tzu-Feng Tseng, Ya-Lan Yang
  • Publication number: 20050189558
    Abstract: A Flip-chip light-emitting device with integral micro-reflector. The flip-chip light-emitting device emits reflected light provided by a light-emitting layer. The micro-reflector reflects light that might otherwise be lost to internal refraction and absorption, so as to increase light-emitting efficiency.
    Type: Application
    Filed: February 24, 2005
    Publication date: September 1, 2005
    Inventor: Wen-Huang Liu
  • Publication number: 20050077544
    Abstract: A light emitting diode having an adhesive layer and a reflective layer and a manufacturing method thereof featured by adhering together a light emitting diode stack and a substrate having a reflective metal layer by use of a transparent adhesive layer so that the light rays directed to the reflective metal layer can be reflected therefrom to improve the brightness of the light emitting diode.
    Type: Application
    Filed: October 28, 2004
    Publication date: April 14, 2005
    Inventors: Wen-Huang Liu, Tzu-Feng Tseng, Min-Hsun Hsieh, Ting-Wei Yeh, Jen-Shui Wang
  • Publication number: 20050077528
    Abstract: A light emitting diode having an adhesive layer and a reflective layer and a manufacturing method thereof featured by adhering together a light emitting diode stack and a substrate having a reflective metal layer by use of a transparent adhesive layer so that the light rays directed to the reflective metal layer can be reflected therefrom to improve the brightness of the light emitting diode.
    Type: Application
    Filed: October 27, 2004
    Publication date: April 14, 2005
    Inventors: Wen-Huang Liu, Tzu-Feng Tseng, Min-Hsun Hsieh, Ting-Wei Yeh, Jen-Shui Wang
  • Publication number: 20050079641
    Abstract: A light emitting diode having an adhesive layer and a reflective layer and a manufacturing method thereof featured by adhering together a light emitting diode stack and a substrate having a reflective metal layer by use of a transparent adhesive layer so that the light rays directed to the reflective metal layer can be reflected therefrom to improve the brightness of the light emitting diode.
    Type: Application
    Filed: October 28, 2004
    Publication date: April 14, 2005
    Inventors: Wen-Huang Liu, Tzu-Feng Tseng, Min-Hsun Hsieh, Ting-Wei Yeh, Jen-Shui Wang
  • Patent number: 6876005
    Abstract: A method for forming a light emitting diode includes forming a first stack, forming a second reaction layer over the first stack, forming a second stack, forming a first reaction layer over the second stack, and holding together the first reaction layer and the second reaction layer by means of a transparent adhesive layer. The transparent adhesive layer is formed between the first and second reaction layer, therefore the second reaction layer of the first stack will not come off the first reaction layer of the second stack.
    Type: Grant
    Filed: July 14, 2003
    Date of Patent: April 5, 2005
    Assignee: Epistar Corporation
    Inventors: Min-Hsun Hsieh, Tzu-Feng Tseng, Wen-Huang Liu, Ting-Wei Yeh, Jen-Shui Wang
  • Publication number: 20050017249
    Abstract: A light-emitting device includes a compound substrate including a high thermal conductive layer and a substrate disposed around the high thermal conductive layer, an adhesive layer formed on the compound substrate, and a light-emitting stack layer formed on the adhesive layer. Therefore, problems in cutting a metal layer in a grain cutting process are solved.
    Type: Application
    Filed: February 5, 2004
    Publication date: January 27, 2005
    Inventors: Wen-Huang Liu, Jen-Shui Wang, Min-Hsun Hsieh
  • Publication number: 20050014305
    Abstract: A method for forming a light emitting diode includes forming a first stack, forming a second reaction layer over the first stack, forming a second stack, forming a first reaction layer over the second stack, and holding together the first reaction layer and the second reaction layer by means of a transparent adhesive layer. The transparent adhesive layer is formed between the first and second reaction layer, therefore the second reaction layer of the first stack will not come off the first reaction layer of the second stack.
    Type: Application
    Filed: May 21, 2004
    Publication date: January 20, 2005
    Inventors: Min-Hsun Hsieh, Tzu-Feng Tseng, Wen-Huang Liu, Ting-Wei Yeh, Jen-Shui Wang
  • Publication number: 20040149996
    Abstract: A nitride light-emitting device having an adhesive reflecting layer includes a transparent adhesive layer, a nitride light-emitting stack layer and a metal reflecting layer. The transparent adhesive layer adheres the nitride light-emitting stack layer and the metal reflecting layer. Therefore, the metal reflecting layer can reflect light emitted from the light-emitting stack layer to increase the brightness of the nitride light-emitting device.
    Type: Application
    Filed: October 29, 2003
    Publication date: August 5, 2004
    Inventors: Min-Hsun Hsieh, Wen-Huang Liu, Ming-Jiunn Jou
  • Publication number: 20040125838
    Abstract: A light emitter includes an emitting stack, a first electrode, a second electrode and a voltage dependent resistor layer. The emitter stack has a first surface area and a second surface area. The first electrode is formed on the first surface area of the emitting stack. The second electrode is formed on the second surface area of the emitting stack. The voltage dependent resistor layer is connected to the first and second electrodes, and is formed during the formation of the light emitter thus improving the yield of the light emitter.
    Type: Application
    Filed: May 9, 2003
    Publication date: July 1, 2004
    Inventors: Wen-Huang Liu, Po-Chun Liu, Min-Hsun Hsieh, Tzu-Feng Tseng, Chen Ou