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).
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Publication number: 20100171094Abstract: A light-emitting semiconductor apparatus includes a light-emitting structure, a reflective structure, and a carrier. The light-emitting structure includes a first type semiconductor layer, a second type semiconductor layer, and a light-emitting layer positioned between the first type semiconductor layer and the second type semiconductor layer. The reflective structure has a first transparent conductive layer, a first patterned reflective layer, a second transparent conductive layer, and a second patterned reflective layer. The first patterned reflective layer is disposed between the first transparent conductive layer and the second transparent conductive layer, and has an opening for physically connecting the first transparent conductive layer and the second transparent conductive layer. The second transparent conductive layer is disposed between the first patterned reflective layer and the second patterned reflective layer.Type: ApplicationFiled: January 5, 2010Publication date: July 8, 2010Applicant: EPISTAR CORPORATIONInventors: Chih-Chiang LU, Wei-Chih PENG, Chien-Yuan WANG, Wei-Yo CHEN, Shiau-Huei SAN, Min-Hsun Hsieh
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Patent number: 7745832Abstract: A semiconductor light-emitting element assembly, comprising a composite substrate, a circuit layout carrier, a connecting structure, a recess, and a semiconductor light-emitting element, is disclosed. The connecting structure is used for bonding the composite substrate with the circuit layout carrier. The recess is formed by the circuit layout carrier and extends toward the composite substrate. The semiconductor light-emitting element is deposited in the recess and electrically connected to the circuit layout carrier.Type: GrantFiled: September 12, 2005Date of Patent: June 29, 2010Assignee: Epistar CorporationInventors: Min-Hsun Hsieh, Chou-Chih Yin, Chien-Yuan Wang, Jen-Shui Wang, Chia-Fen Tsai, Chia-Liang Hsu
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Patent number: 7732827Abstract: 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: GrantFiled: July 3, 2007Date of Patent: June 8, 2010Assignee: Epistar CorporationInventors: Chien-Yuan Wang, Chih-Chiang Lu, Min-Hsun Hsieh
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Publication number: 20100127397Abstract: An optoelectronic semiconductor device includes a substrate, a semiconductor system having an active layer formed on the substrate and an electrode structure formed on the semiconductor system, wherein the layout of the electrode structure having at least a first conductivity type contact zone or 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 have three-dimensional crossover, and partial of the first conductivity type extension electrode and the first conductivity type contact zone or the first conductivity type bonding pad are on the opposite sides of the active layer.Type: ApplicationFiled: November 25, 2009Publication date: May 27, 2010Applicant: EPISTAR CORPORATIONInventors: Wei-Yo Chen, Yen-Wen Chen, Chien-Yuan Wang, Min-Hsun Hsieh, Tzer-Perng Chen
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Patent number: 7724321Abstract: 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: GrantFiled: September 23, 2005Date of Patent: May 25, 2010Assignee: Epistar CorporationInventors: Min-Hsun Hsieh, Chien-Yuan Wang
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Publication number: 20090267488Abstract: 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: ApplicationFiled: April 28, 2009Publication date: October 29, 2009Applicant: EPISTAR CORPORATIONInventors: Yu-Sheng Tang, Ru-Shi Liu, Shu-Fen Hu, Chien-Yuan Wang
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Publication number: 20090021926Abstract: 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: ApplicationFiled: July 16, 2008Publication date: January 22, 2009Applicant: EPISTAR CORPORATIONInventors: Chien-Yuan Wang, Min-Hsun Hsieh, Chih-Chiang Lu
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Publication number: 20090014744Abstract: 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: ApplicationFiled: July 11, 2008Publication date: January 15, 2009Applicant: EPISTAR CORPORATIONInventors: Min-Hsun Hsieh, Chien-Yuan Wang
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Publication number: 20080308818Abstract: A light-emitting device includes an LED chip emitting a primary light, and a phosphor deposited on the LED chip for absorbing the primary light to excite a secondary light, wherein the wavelength of the primary light is shorter than 430 nm and the LED chip is driven by current density greater than 200 mA/cm2. The wavelength-converting light-emitting device has a high light efficiency and a stable color temperature, wherein LED chip is diced from a wafer made by means of a phosphor-on-chip process.Type: ApplicationFiled: June 14, 2007Publication date: December 18, 2008Applicant: EPISTAR CORPORATIONInventors: Chien-Yuan Wang, Min-Hsun Hsieh, Yu-Jiun Shen
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Publication number: 20080067534Abstract: This disclosure relates to a light-emitting apparatus comprising a submount, a chip carrier formed on the submount, a light-emitting chip formed on the chip carrier, a reflecting cup formed on the submount and enclosing the light-emitting chip and the chip carrier, and a transparent encapsulating material for encapsulating the light-emitting chip.Type: ApplicationFiled: July 23, 2007Publication date: March 20, 2008Applicant: EPISTAR CORPORATIONInventors: Min-Hsun Hsieh, Ta-Cheng Hsu, ML Tsai, Chih-Chiang Lu, Chien-Yuan Wang, Yen-Wen Chen, Ya-Ju Lee
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Publication number: 20080006815Abstract: 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: ApplicationFiled: July 3, 2007Publication date: January 10, 2008Applicant: EPISTAR CORPORATIONInventors: Chien-Yuan Wang, Chih-Chiang Lu, Min-Hsun Hsieh
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Patent number: 7246931Abstract: A tube type light emitting diode light source including a light source generator, a light guide and a diffuser is provided. The light source generator includes LEDs arranging in a line. The light guide has a grooved light incident surface and a grooved light-guiding surface. The grooved light incident surface encompasses the LEDs, and the grooved light-guiding surface is adapted for changing the propagating direction of an incident light. The diffuser covers the light guide.Type: GrantFiled: December 13, 2005Date of Patent: July 24, 2007Assignee: Epistar CorporationInventors: Min-Hsun Hsieh, Chou-Chih Yin, Chia-Liang Hsu, Jen-Shui Wang, Chia-Fen Tsai, Chien-Yuan Wang
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Patent number: 7229332Abstract: A method for manufacturing a white light source provides an LED light source and a semiconductor-type phosphor with (Zn, Cd)S being the host with foreign ions added thereto as luminescence centers. The LED light source emits light ranging from 495 nm about (blue-green light) to about 340 nm (ultra-violet).Type: GrantFiled: September 25, 2003Date of Patent: June 12, 2007Assignee: Lite-On Technology CorporationInventors: Ru-Shi Liu, Hung-Yuan Su, Chien-Yuan Wang, Liang-Sheng Chi
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Patent number: 7147803Abstract: The subject invention relates to yttrium aluminum garnet fluorescent powders with formula (Y3-x-yZxEuy)Al5O12 or (Y3ZxEuy)Al5O12, wherein 0<x?0.8, 0<y?1.5, and Z is selected from a group consisting of rare earth metals other than europium (Eu). The subject invention also relates to a pink light-emitting device, which comprises a light-emitting diodes as a luminescent element and a fluorescent body containing yttrium aluminum garnet fluorescent powders, wherein the diode emits a light with a wavelength ranging from 370 to 410 nm, which then excites the yttrium aluminum garnet fluorescent powders in the fluorescent body to emit another light with a wavelength ranging from 585 nm to 700 nm, so the two lights combine to produce a pink light. The subject invention also relates to the preparation of the yttrium aluminum garnet fluorescent powders.Type: GrantFiled: January 7, 2004Date of Patent: December 12, 2006Assignee: Nantex Industry Co., Ltd.Inventors: Chien-Yuan Wang, Ru-Shi Liu, Rey Kung Wu, Wei-Tai Cheng
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Publication number: 20060126343Abstract: A tube type light emitting diode light source including a light source generator, a light guide and a diffuser is provided. The light source generator includes LEDs arranging in a line. The light guide has a grooved light incident surface and a grooved light-guiding surface. The grooved light incident surface encompasses the LEDs, and the grooved light-guiding surface is adapted for changing the propagating direction of an incident light. The diffuser covers the light guide.Type: ApplicationFiled: December 13, 2005Publication date: June 15, 2006Inventors: Min-Hsun Hsieh, Chou-Chih Yin, Chia-Liang Hsu, Jen-Shui Wang, Chia-Fen Tsai, Chien-Yuan Wang
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Patent number: 7059927Abstract: A method for manufacturing a white light source includes steps of providing an ultra-violet light as a radiation source, preparing three kinds of first phosphors each receiving the ultra-violet light and emitting the light of red, green and blue, respectively, and preparing at least one additional second phosphor to modify a spectral property of the light emitted by the three first phosphors in order to improve the brightness and color rendering property of the white light source. Moreover, at least one phosphor with the fluorescent property is used as the above second phosphor powder to obtain a color-changeable light source.Type: GrantFiled: August 19, 2002Date of Patent: June 13, 2006Assignee: Lite On Technology CorporationInventors: Chien-Yuan Wang, Ru-Shi Liu, Liang-Sheng Chi, Hung-Yuan Su
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Publication number: 20060076571Abstract: A semiconductor light-emitting element assembly, comprising a composite substrate, a circuit layout carrier, a connecting structure, a recess, and a semiconductor light-emitting element, is disclosed. The connecting structure is used for bonding the composite substrate with the circuit layout carrier. The recess is formed by the circuit layout carrier and extends toward the composite substrate. The semiconductor light-emitting element is deposited in the recess and electrically connected to the circuit layout carrier.Type: ApplicationFiled: September 12, 2005Publication date: April 13, 2006Inventors: Min-Hsun Hsieh, Chou-Chih Yin, Chien-Yuan Wang, Jen-Shui Wang, Chia-Fen Tsai, Chia-Liang Hsu
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Publication number: 20060065900Abstract: 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: ApplicationFiled: September 23, 2005Publication date: March 30, 2006Inventors: Min-Hsun Hsieh, Chien-Yuan Wang
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Publication number: 20050205874Abstract: A white light-emitting device comprising a blue-violet or blue LED and a phosphor material capable of emitting a yellow-green to orange-yellow light upon excitation by the light emitted by the LED. The light from the LED and the phosphor material are mixed in an appropriate ratio to produce a white light. The phosphor material has a general formula (YxMyCez)Al5O12, where x+y=3, x, y?0, 0.5>z>0, and M is selected from the group consisting of Tb, Lu, and Yb, with (YxMy)Al5O12 serving as a host and Ce as an activator. By changing the composition of the metal elements in the host, the crystal field is modulated to thereby alter the energy level of the excited state to which the activator is transferred upon irradiation by a specific wavelength of light, leading to the change in the emitting wavelength of the phosphor material.Type: ApplicationFiled: March 19, 2004Publication date: September 22, 2005Inventors: Ru-Shi Liu, Yi-Shan Lin, Liang-Sheng Chi, Chien-Yuan Wang
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Publication number: 20050099786Abstract: A yellow phosphor material has a host with a formula (TbxMyCez)Al5O12, wherein x+y+z=3 , 3>x>0 and y?0 and a Ce activator. M is selected from the group consisting of Sc, Y, Dy, Ho, Er, Tm, Yb, and Lu. By changing the diameter of metal ions, the crystal field thereof may be modulated to thereby alter the energy level of the excited state to which the activator is transferred upon irradiation by a specific wavelength of light. The phosphor can be used with a blue LED to form a white light source.Type: ApplicationFiled: November 7, 2003Publication date: May 12, 2005Inventors: Ru-Shi Liu, Yi-Shan Lin, Liang-Shen Chi, Chien-Yuan Wang