Patents by Inventor Chien-Yuan Wang

Chien-Yuan 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: 8207551
    Abstract: The present invention discloses a semiconductor light-emitting device including a semiconductor light-emitting element, a first attaching layer and a wavelength conversion structure. The primary light emitted from the semiconductor light-emitting element enters the wavelength conversion structure to generate a converted light, whose wavelength is different form that of the primary light. In addition, the present invention also provides the method for forming the same.
    Type: Grant
    Filed: February 18, 2011
    Date of Patent: June 26, 2012
    Assignee: Epistar Corporation
    Inventors: Min-Hsun Hsieh, Chien-Yuan Wang
  • Publication number: 20120132944
    Abstract: Disclosed is a light-emitting device comprising: a carrier; a light-emitting element disposed on the carrier; a first light guide layer covering the light-emitting element, and disposed on the carrier; a wavelength conversion and light guide layer covering the first light guide layer and the light-emitting element, and disposed on the carrier; and a low refractive index layer disposed between the first light guide layer and the wavelength conversion and light guide layer; wherein the first light guide layer comprises a gradient refractive index, the wavelength conversion and light guide layer comprises a dome shape structure and is used to convert a wavelength of light emitted from the light-emitting element and transmit light, and the low refractive index layer is used to reflect light from the wavelength conversion and light guide layer.
    Type: Application
    Filed: November 29, 2011
    Publication date: May 31, 2012
    Applicant: Epistar Corporation
    Inventors: Min-Hsun Hsieh, Chien-Yuan Wang, Tsung-Xian Lee, Chih-Ming Wang, Ming-Chi Hsu, Han-Min Wu
  • Patent number: 8183584
    Abstract: A light-emitting device and manufacturing method thereof are disclosed. The light-emitting device includes a substrate, a semiconductor light-emitting structure, a filter layer, and a fluorescent conversion layer. The method comprises forming a semiconductor light-emitting structure over a substrate, forming a filter layer over the semiconductor light-emitting structure, and forming a fluorescent conversion layer over the filter layer.
    Type: Grant
    Filed: May 5, 2011
    Date of Patent: May 22, 2012
    Assignee: Epistar Corporation
    Inventors: Chien-Yuan Wang, Chih-Chiang Lu, Min-Hsun Hsieh
  • Publication number: 20120050870
    Abstract: A liquid crystal display having a backlight module, liquid crystal layer and a color filter layer is disclosed in the invention. An ultraviolet unit for emitting ultraviolet is disposed in the backlight module. The color filter layer is composed of a purity of pixels, and at least one of the purity of pixels is filled with a wavelength-converting material. The wavelength-converting material can convert ultraviolet into green light.
    Type: Application
    Filed: November 7, 2011
    Publication date: March 1, 2012
    Applicant: Epistar Corporation
    Inventors: Min-Hsun HSIEH, Chien-Yuan Wang
  • Publication number: 20120032198
    Abstract: An optoelectronic semiconductor device including: a substrate; a semiconductor system having an active layer formed on the substrate; and an electrode structure formed on the semiconductor system, wherein the electrode structure includes: a first conductivity type bonding pad; a second conductivity type bonding pad; a first conductivity type extension electrode; and a second conductivity type extension electrode, wherein the first conductivity type extension electrode and the second conductivity type extension electrode form a three-dimensional crossover; wherein the first conductivity type extension electrode and the second conductivity type extension electrode are on the opposite sides of the active layer.
    Type: Application
    Filed: August 11, 2011
    Publication date: February 9, 2012
    Inventors: Shi-Liang YEH, Chien-Yuan Wang, Shih-Chiang Yeh
  • Publication number: 20120025228
    Abstract: The present application provides a light-emitting device comprising a light-emitting diode group, a temperature compensation element electrically connected to the light-emitting diode group. When a junction temperature of the light-emitting diode group is increased from a first temperature to a second temperature during operation, the current flowing through the light-emitting diode group at the second temperature is larger than the current flowing through the light-emitting diode group at the first temperature.
    Type: Application
    Filed: July 28, 2011
    Publication date: February 2, 2012
    Inventors: Min-Hsun HSIEH, Chien-Yuan Wang
  • Publication number: 20120025250
    Abstract: This application provides a semiconductor light-emitting device and the manufacturing method thereof. The semiconductor light-emitting device comprises a semiconductor light-emitting structure and a thinned substrate. The semiconductor light-emitting structure comprises a plurality of semiconductor layers and a plurality of first channels, wherein a plurality of first channels has a predetermined depth that penetrating at least two layers of the plurality of semiconductor layers.
    Type: Application
    Filed: July 29, 2011
    Publication date: February 2, 2012
    Applicant: Epistar Corporation
    Inventors: Min-Hsun Hsieh, Wei-Yu Chen, Li-Ming Chang, Chien-Yuan Wang, Chiu-Lin Yao
  • Publication number: 20110286201
    Abstract: An embodiment of the invention discloses a wavelength converting system. The wavelength converting system comprises: a wavelength converter having a first area and a second area; a first light source disposed under the first area and inducing a first mixed light being visible above the first area; a second light source disposed under the second area and inducing a second mixed light being visible above the second area; and a carrier supporting the first light source and the second light source. The first light source and the second light source have a dominant wavelength difference of 1 nm˜20 nm, and the first mixed light and the second mixed light have a color temperature difference less than 100K.
    Type: Application
    Filed: August 1, 2011
    Publication date: November 24, 2011
    Inventors: Chien-Yuan WANG, Min-Hsun Hsieh, Chih-Chiang Lu
  • Patent number: 8054409
    Abstract: A light-emitting device including a light-spreading device having a wing-shaped protrusion part, a light-entering surface that includes an uneven surface, and a recess located away from the light-entering surface; an optoelectronic device disposed under the uneven surface and emitting light towards the light-entering surface; and a wavelength-converting material formed on a path along light traveling from the optoelectronic device. The device may additionally include a liquid crystal layer for controlling light flux from the light-spreading device; a color filter layer including a plurality of pixels provided adjacent to the liquid crystal layer. The device may be a liquid crystal display having a backlight module, a liquid crystal layer, and a color filter layer. An ultraviolet unit for emitting ultraviolet light may be disposed in the backlight module. At least one pixel may be filled with a wavelength-converting material that can convert ultraviolet light into green light.
    Type: Grant
    Filed: March 16, 2010
    Date of Patent: November 8, 2011
    Assignee: Epistar Corporation
    Inventors: Min-Hsun Hsieh, Chien-Yuan Wang
  • Patent number: 8026659
    Abstract: This invention discloses a wavelength converting material. The wavelength converting material comprises a metal haloaluminate compound phosphor with a chemical formula Mw-pAlyOzXq:Rp, wherein M is at least one element selected from the group of Be, Mg, Ca, Sr, Ba and Zn; X is at least one element selected from the group of F, Cl, Br, and I; R is one or more elements selected from the group of the transition metals and at least one element selected from the lanthanide series. Because the emitting wavelength of the metal haloaluminate compound phosphor is 550˜650 nm which is from the green to the red light spectrum, the white light mixed by the converted light of the metal haloaluminate phosphor and the blue light has better color rendering index. Besides, this invention also discloses the optoelectronic devices comprising the metal haloaluminate compound phosphor.
    Type: Grant
    Filed: April 28, 2009
    Date of Patent: September 27, 2011
    Assignee: Epistar Corporation
    Inventors: Yu-Sheng Tang, Ru-Shi Liu, Shu-Fen Hu, Chien-Yuan Wang
  • Publication number: 20110198650
    Abstract: The present invention discloses a semiconductor light-emitting device including a semiconductor light-emitting element, a first attaching layer and a wavelength conversion structure. The primary light emitted from the semiconductor light-emitting element enters the wavelength conversion structure to generate a converted light, whose wavelength is different form that of the primary light. In addition, the present invention also provides the method for forming the same.
    Type: Application
    Filed: February 18, 2011
    Publication date: August 18, 2011
    Applicant: Epistar Corporation
    Inventors: Min-Hsun Hsieh, Chien-Yuan Wang
  • Patent number: 7988325
    Abstract: An embodiment of the invention discloses a wavelength converting system. The wavelength converting system comprises: a wavelength converter having a first area and a second area; a first light source disposed under the first area and inducing a first mixed light being visible above the first area; a second light source disposed under the second area and inducing a second mixed light being visible above the second area; and a carrier supporting the first light source and the second light source. The first light source and the second light source have a dominant wavelength difference of 1 nm˜20 nm, and the first mixed light and the second mixed light have a color temperature difference less than 100K.
    Type: Grant
    Filed: November 8, 2010
    Date of Patent: August 2, 2011
    Assignee: Epistar Corporation
    Inventors: Chien-Yuan Wang, Min-Hsun Hsieh, Chih-Chiang Lu
  • Patent number: 7943948
    Abstract: A light-emitting device and manufacturing method thereof are disclosed. The light-emitting device includes a substrate, a semiconductor light-emitting structure, a filter layer, and a fluorescent conversion layer. The method comprises forming a semiconductor light-emitting structure over a substrate, forming a filter layer over the semiconductor light-emitting structure, and forming a fluorescent conversion layer over the filter layer.
    Type: Grant
    Filed: April 21, 2010
    Date of Patent: May 17, 2011
    Assignee: Epistar Corporation
    Inventors: Chien-Yuan Wang, Chih-Chiang Lu, Min-Hsun Hsieh
  • Patent number: 7906792
    Abstract: The present invention discloses a semiconductor light-emitting device including a semiconductor light-emitting element, a first attaching layer and a wavelength conversion structure. The primary light emitted from the semiconductor light-emitting element enters the wavelength conversion structure to generate a converted light, whose wavelength is different form that of the primary light. In addition, the present invention also provides the method for forming the same.
    Type: Grant
    Filed: July 11, 2008
    Date of Patent: March 15, 2011
    Assignee: Epistar Corporation
    Inventors: Min-Hsun Hsieh, Chien-Yuan Wang
  • Publication number: 20110050126
    Abstract: An embodiment of the invention discloses a wavelength converting system. The wavelength converting system comprises: a wavelength converter having a first area and a second area; a first light source disposed under the first area and inducing a first mixed light being visible above the first area; a second light source disposed under the second area and inducing a second mixed light being visible above the second area; and a carrier supporting the first light source and the second light source. The first light source and the second light source have a dominant wavelength difference of 1 nm˜20 nm, and the first mixed light and the second mixed light have a color temperature difference less than 100K.
    Type: Application
    Filed: November 8, 2010
    Publication date: March 3, 2011
    Inventors: Chien-Yuan Wang, Min-Hsun Hsieh, Chih-Chiang Lu
  • Publication number: 20100314657
    Abstract: A optoelectronic device comprises a semiconductor stack layer; a first transparent conductive oxide (abbreviate as “TCO” hereinafter) layer located on the semiconductor stack layer, wherein the first TCO layer has at least one opening; and a second TCO layer covering the first TCO layer, wherein the second TCO layer is filled into the opening of the first TCO layer and contacted with the semiconductor stack layer, and one of the first TCO layer and the second TCO layer forms an ohmic contact with the semiconductor stack layer.
    Type: Application
    Filed: June 11, 2010
    Publication date: December 16, 2010
    Inventors: Min-Hsun Hsieh, Chien-Yuan Wang, Jin-Ywan Lin, Chiu-Lin Yao
  • Patent number: 7850321
    Abstract: An embodiment of the invention discloses a wavelength converting system capable of emitting a second electromagnetic radiation having a second wavelength in response to a first electromagnetic radiation having a first wavelength, wherein an energy level of the first electromagnetic radiation is higher than that of the second electromagnetic level, and a positive correlation is between the first wavelength and the second wavelength.
    Type: Grant
    Filed: July 16, 2008
    Date of Patent: December 14, 2010
    Assignee: Epistar Corporation
    Inventors: Chien-Yuan Wang, Min-Hsun Hsieh, Chih-Chiang Lu
  • Publication number: 20100308355
    Abstract: A semiconductor light-emitting device having a thinned structure comprises a thinned structure formed between a semiconductor light-emitting structure and a carrier. The manufacturing method comprises the steps of forming a semiconductor light-emitting structure above a substrate; attaching the semiconductor light-emitting structure to a support; thinning the substrate to form a thinned structure; forming or attaching a carrier to the thinned substrate; and removing the support.
    Type: Application
    Filed: June 9, 2009
    Publication date: December 9, 2010
    Inventors: Min-Hsun HSIEH, Chih-Chiang LU, Chien-Yuan WANG, Yen-Wen CHEN, Jui-Hung YEH, Shih-Chin HUNG, Yu-Wei TU, Chun-Yi WU, Wei-Chih PENG
  • Publication number: 20100213491
    Abstract: This application discloses a light-emitting device with narrow dominant wavelength distribution and a method of making the same. The light-emitting device with narrow dominant wavelength distribution at least includes a substrate, a plurality of light-emitting stacked layers on the substrate, and a plurality of wavelength transforming layers on the light-emitting stacked layers, wherein the light-emitting stacked layer emits a first light with a first dominant wavelength variation; the wavelength transforming layer absorbs the first light and converts the first light into the second light with a second dominant wavelength variation; and the first dominant wavelength variation is larger than the second dominant wavelength variation.
    Type: Application
    Filed: February 24, 2010
    Publication date: August 26, 2010
    Inventors: Chih-Chiang LU, Shu-Ting Hsu, Yen-Wen Chen, Chien-Yuan Wang, Ru-Shi Liu, Min-Hsun Hsieh
  • Publication number: 20100171902
    Abstract: A liquid crystal display having a backlight module, liquid crystal layer and a color filter layer is disclosed in the invention. An ultraviolet unit for emitting ultraviolet is disposed in the backlight module. The color filter layer is composed of a purity of pixels, and at least one of the purity of pixels is filled with a wavelength-converting material. The wavelength-converting material can convert ultraviolet into green light.
    Type: Application
    Filed: March 16, 2010
    Publication date: July 8, 2010
    Inventors: Min-Hsun Hsieh, Chien-Yuan Wang