Patents by Inventor Wen-Yung Yeh
Wen-Yung 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).
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Publication number: 20150129848Abstract: An illumination device including a light-emitting panel, a touch panel, and a control module is provided. The light-emitting panel includes a light-emitting layer configured to emit a light beam. The touch panel is overlaid on the light-emitting panel, and includes a first ouch electrode. The control module is electrically connected to the light-emitting panel and the touch panel. The light-emitting layer further includes a light-emitting material, and the width of the light-emitting material is greater than half of the width of the first touch electrode.Type: ApplicationFiled: July 30, 2014Publication date: May 14, 2015Inventors: Wen-Yung YEH, Yi-Ming CHANG, Su-Tsai LU, Chen-Kun CHEN
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Patent number: 8981391Abstract: A display panel including a substrate, a meshed shielding pattern, and a plurality of light-emitting devices is provided. The meshed shielding pattern is disposed on the substrate so as to define a plurality of pixel regions on the substrate. The light-emitting devices are disposed on the substrate. At least one light-emitting device of the light-emitting devices is disposed in each pixel region of the pixel regions, wherein an area of the pixel region is A1, an area of the light-emitting device is A2, and a ratio of A2 to A1 is below 50%.Type: GrantFiled: June 21, 2013Date of Patent: March 17, 2015Assignee: Industrial Technology Research InstituteInventors: Jui-Ying Lin, Chia-Hsin Chao, Kuang-Yu Tai, Wen-Yung Yeh
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Patent number: 8931906Abstract: A light emitting unit array including a plurality of micro-light emitting diodes (?-LEDs) is provided. The micro-light emitting diodes are arranged in an array on a substrate, and each of the micro-light emitting diodes includes a reflection layer, a light emitting structure, and a light collimation structure. The light emitting structure is disposed on the reflection layer, and includes a first type doped semiconductor layer, an active layer, and a second type doped semiconductor layer that are stacked sequentially. At least a portion of the first type doped semiconductor layer, the active layer, and the second type doped semiconductor layer are sandwiched between the reflection layer and the light collimation structure.Type: GrantFiled: August 26, 2011Date of Patent: January 13, 2015Assignee: Industrial Technology Research InstituteInventors: Chen-Yang Huang, Chia-Hsin Chao, Wen-Yung Yeh
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Publication number: 20140111996Abstract: A lamp apparatus include a lamp body, at least an alternating current light-emitting diode and a plug. The alternating current light-emitting diode is disposed on a lamp body. The plug is electrically connected to the alternating current light-emitting diode. In lamp apparatuses utilizing AC LED, heat generated thereby is almost concentrated on chips. Compared with conventional lamp apparatuses utilizing DC LEDs, heat generated thereby is distributed on chips and outer rectifier. In lamp apparatuses utilizing AC LEDs, heat generated thereby is almost concentrated on chips because AC LEDs operate directly with AC electric power, omitting a rectifier and preventing power loss during operation of power rectification. Therefore, the heat accumulated on the chips of the AC LEDs is enough to be used to evaporate essential oil. In another embodiment, the invention utilizes low-resistance pure water surrounding the AC LED to dissipate its heat.Type: ApplicationFiled: January 2, 2014Publication date: April 24, 2014Applicant: Epistar CorporationInventors: Wen-Yung YEH, Jui-Ying LIN, Yu-Chen YU, Yu-Chun LIN, Ta-Wei CHIEN, Ming-Te LIN, Yu-Chun LIN
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Patent number: 8704241Abstract: A light-emitting system includes a first power input terminal and a second power input terminal and five rectifying devices coupled between the two power input terminals. The first and second power input terminals may receive an external power input. The first rectifying device is coupled between the first power input terminal and a first intermediate contact. The second rectifying device is coupled between the second power input terminal and the first intermediate contact. The third rectifying device is coupled between a second intermediate contact and the second power input terminal. The fourth rectifying device is coupled between the second intermediate contact and the first power input terminal. The fifth rectifying device is coupled between the first intermediate contact and the second intermediate contact. The fifth rectifying device is configured to allow a current flow from the first intermediate contact to the second intermediate contact and to emit light in response to the current flow.Type: GrantFiled: October 7, 2008Date of Patent: April 22, 2014Assignee: Epistar CorporationInventors: Wen-Yung Yeh, Yu-Chen Yu, Hsi-Hsuan Yen, Jui-Ying Lin
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Patent number: 8692505Abstract: A charge apparatus including a natural energy conversion module, an energy converter, an energy transmitter, and an energy receiver is provided. The natural energy conversion module receives a natural energy and converts the natural energy into a first electric energy. The energy converter is electrically connected to the natural energy conversion module and converts the first electric energy into a wireless energy. The energy transmitter is electrically connected to the energy converter and transmits the wireless energy in a wireless manner. The energy receiver receives the wireless energy in a wireless manner and converts the wireless energy into a second electric energy.Type: GrantFiled: July 9, 2010Date of Patent: April 8, 2014Assignee: Industrial Technology Research InstituteInventors: Mu-Tao Chu, Yu-Chen Yu, Wen-Yung Yeh, Wen-Yih Liao, Jui-Ying Lin, Ming-Hsien Wu
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Publication number: 20140078131Abstract: An alternating current (AC) light emitting device includes an AC light emitting diode (LED) module and a waveform modulation unit. The AC LED module includes at least two sets of micro-diodes. The waveform modulation unit coupled between the AC LED module and an AC voltage source modulates a waveform of the AC voltage source.Type: ApplicationFiled: November 22, 2013Publication date: March 20, 2014Applicant: EPISTAR CORPORATIONInventors: Sheng-Chieh TAI, Wen-Yung YEH, Yi-Jen CHAN
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Patent number: 8632199Abstract: A lamp apparatus include a lamp body, at least an alternating current light-emitting diode and a plug. The alternating current light-emitting diode is disposed on a lamp body. The plug is electrically connected to the alternating current light-emitting diode. In lamp apparatuses utilizing AC LED, heat generated thereby is almost concentrated on chips. Compared with conventional lamp apparatuses utilizing DC LEDs, heat generated thereby is distributed on chips and outer rectifier. In lamp apparatuses utilizing AC LEDs, heat generated thereby is almost concentrated on chips because AC LEDs operate directly with AC electric power, omitting a rectifier and preventing power loss during operation of power rectification. Therefore, the heat accumulated on the chips of the AC LEDs is enough to be used to evaporate essential oil. In another embodiment, the invention utilizes low-resistance pure water surrounding the AC LED to dissipate its heat.Type: GrantFiled: August 28, 2009Date of Patent: January 21, 2014Assignee: Epistar CorporationInventors: Wen-Yung Yeh, Jui-Ying Lin, Yu-Chen Yu, Ming-Te Lin, Yu-Chun Lin, Ta-Wei Chien
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Patent number: 8624274Abstract: A method for forming a pixel of an LED light source is provided. The method includes: forming a first layer on a first substrate; forming a second layer and a first light-emitting active layer on the first layer; forming a first intermediate layer on the second layer; forming a third layer on a second substrate; forming a fourth layer and a second light-emitting active layer on the third layer; placing the third layer, the fourth layer, and the second light-emitting active layer on the first intermediate layer, wherein the first light-emitting active layer and the second light-emitting active layer emit different colors of light. A method for forming a plurality of light-emitting diode pixels arranged in a two-dimensional array is also provided.Type: GrantFiled: August 22, 2011Date of Patent: January 7, 2014Assignee: Industrial Technology Research InstituteInventors: Han-Tsung Hsueh, Hsi-Hsuan Yen, Wen-Yung Yeh, Mu-Tao Chu
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Publication number: 20130341659Abstract: A display panel including a substrate, a meshed shielding pattern, and a plurality of light-emitting devices is provided. The meshed shielding pattern is disposed on the substrate so as to define a plurality of pixel regions on the substrate. The light-emitting devices are disposed on the substrate. At least one light-emitting device of the light-emitting devices is disposed in each pixel region of the pixel regions, wherein an area of the pixel region is A1, an area of the light-emitting device is A2, and a ratio of A2 to A1 is below 50%.Type: ApplicationFiled: June 21, 2013Publication date: December 26, 2013Applicant: Industrial Technology Research InstituteInventors: Jui-Ying Lin, Chia-Hsin Chao, Kuang-Yu Tai, Wen-Yung Yeh
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Patent number: 8598799Abstract: An alternating current (AC) light emitting device includes an AC light emitting diode (LED) module and a waveform modulation unit. The AC LED module includes at least two sets of micro-diodes. The waveform modulation unit coupled between the AC LED module and an AC voltage source modulates a waveform of the AC voltage source.Type: GrantFiled: December 18, 2008Date of Patent: December 3, 2013Assignee: Epistar CorporationInventors: Sheng-Chieh Tai, Wen-Yung Yeh, Yi-Jen Chan
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Patent number: 8573784Abstract: A projection apparatus is provided. The projection apparatus includes a light-emitting unit array, an optical sensor, and a control unit. The light-emitting unit array is for emitting an image beam. The optical sensor is for detecting electromagnetic waves so as to generate a signal. The control unit is electrically coupled to the light-emitting unit array and the optical sensor for controlling emission of the light-emitting unit array according to the signal from the optical sensor.Type: GrantFiled: August 18, 2011Date of Patent: November 5, 2013Assignee: Industrial Technology Research InstituteInventors: Wen-Yung Yeh, Chia-Hsin Chao, Yu-Hung Chuang, Chia-Ling Li, Chun-Feng Lai, Hsi-Hsuan Yen, Sheng-Chieh Tai, Kuang-Yu Tai, Tse-Peng Chen
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Publication number: 20130250630Abstract: A method for controlling an alternating current (AC) output of a photovoltaic (PV) device, and an AC PV device are introduced herein. The method includes: receiving solar radiant energy by using a PV cell array and then converting the solar radiant energy into a direct current (DC) energy output; and selecting an arrangement and combination sequence of the PV cells by using a control module, to vary a voltage according to a timing (frequency), so that a sine-like wave output is obtained at an output terminal.Type: ApplicationFiled: June 13, 2012Publication date: September 26, 2013Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Jung-Tsung Hsu, Wen-Yung Yeh, Ming-Hsien Wu, Wen-Yih Liao, Mu-Tao Chu
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Publication number: 20130236183Abstract: A visible light communication (VLC) transceiver and a VLC system are provided. The VLC transceiver includes a substrate, a lens module and a plurality of channel units. The channel units are disposed on the substrate in an array to provide different bidirectional communication channels. Wherein, each of the channel units respectively includes at least a visible light emitter and at least a visible light receiver. The channel units can enhance communication bandwidth by using modulation technology such as spatial multiplexing or time multiplexing. The lens module is disposed on an optical path of the channel units. The lens module actively tracks the receiving situation of the visible light receiver to improve the signal quality of high-speed multiplexing communication.Type: ApplicationFiled: April 13, 2012Publication date: September 12, 2013Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Chia-Hsin Chao, Wen-Yung Yeh, Hung-Pin Yang
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Patent number: 8503500Abstract: A light emitting device and the fabrication method includes forming one or more light emitting modules on a substrate. The light emitting module receives an alternating current input and has at least two micro diodes. Each micro diode has at least two active layers and is electrically connected by a conductive structure so as to allow the active layers of the micro diodes to alternately emit light during positive and negative cycles of the alternating-current input.Type: GrantFiled: January 28, 2008Date of Patent: August 6, 2013Assignee: Epistar CorporationInventors: Ming-Te Lin, Hsi-Hsuan Yen, Wen-Yung Yeh, Ming-Yao Lin, Sheng-Pan Huang
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Patent number: 8487321Abstract: An alternating current (AC) light emitting assembly and an AC light emitting device are disclosed. The AC light emitting assembly includes a substrate; a rectifier unit comprising a plurality of rectifier components arranged in a Wheatstone Bridge, for rectifying an AC signal into a direct current (DC) signal, each of the rectifier components having a high breakdown voltage and a low forward voltage; a light emitting unit electrically connected to the rectifier unit and comprising a plurality of light emitting components formed on the substrate, for emitting light when receiving the DC signal outputted by the rectifier unit; and two conductive electrodes electrically connected to the rectifier unit for receiving and transmitting the AC signal to the rectifier unit. The AC light emitting device includes two stacked and electrically connected AC light emitting assemblies.Type: GrantFiled: December 12, 2006Date of Patent: July 16, 2013Assignee: Epistar CorporationInventors: Hsi-Hsuan Yen, Jim-Yong Chi, Wen-Yung Yeh, Ting-Chi Lee, Ming-Te Lin, Sheng-Pan Huang
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Patent number: 8486734Abstract: An alternating current light-emitting device includes a substrate, a plurality of microdie light-emitting elements formed on the substrate, a rectifying element-dedicated member formed on a surface of a portion of microdie light-emitting elements, a rectifying unit formed on the rectifying element-dedicated member and provided with at least four rectifying elements forming a Wheatstone bridge circuit, and an electrically conductive structure electrically connecting the rectifying elements and the microdie light-emitting elements. With the rectifying unit being formed on the rectifying element-dedicated member, the rectifying elements are highly tolerant of reverse bias and feature low starting forward bias. Also, the present invention provides a method for fabricating an alternating current light-emitting device.Type: GrantFiled: November 15, 2010Date of Patent: July 16, 2013Assignee: Epistar CorporationInventors: His-Hsuan Yen, Wen-Yung Yeh
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Publication number: 20130135507Abstract: A photography and projection apparatus including a light emitting and sensing module and a projection lens is provided. The light emitting and sensing module has a light emitting and sensing area, and includes a light emitting unit array and a light sensing unit array. The light emitting unit array includes a plurality of light emitting units arranged in an array. The light emitting units are distributed in the light emitting and sensing area. The light emitting unit array is adapted to provide an image beam. The light sensing unit array includes a plurality of light sensing units arranged in an array. The light sensing units are distributed in the light emitting and sensing area. The projection lens is disposed on a transmission path of the image beam. A light emitting and sensing module is also provided.Type: ApplicationFiled: November 28, 2011Publication date: May 30, 2013Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Ming-Hsien Wu, Wen-Yung Yeh, Chia-Hsin Chao, Mu-Tao Chu, Jui-Ying Lin
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Patent number: 8410503Abstract: A new light emitting device is disclosed, including a polarizing surface layer, a light emitting layer which emits light at a wavelength, and a light transformation layer disposed between the light emitting layer and the reflective layer, wherein the light emitting layer is disposed between the reflective layer and the polarizing surface layer, and an optical thickness between the light emitting layer and the reflective layer is less than a value of five times of a quarter of the wavelength.Type: GrantFiled: November 23, 2010Date of Patent: April 2, 2013Assignee: Industrial Technology Research InstituteInventors: Jih-Fu Wang, Chia-Hsin Chao, Chen-Yang Huang, Han-Tsung Hsueh, Chun-Feng Lai, Wen-Yung Yeh, Chien-Jen Sun
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Patent number: 8378567Abstract: A light-emitting device comprises a substrate, at least one light-emitting structure configured to emit light beams and positioned on the substrate, and a ring-shaped photonic crystal structure positioned in the light-emitting structure. The ring-shaped photonic crystal structure includes a plurality of pillars positioned in the light-emitting structure and a plurality of ring-shaped openings surrounding the pillars. The distance between the ring-shaped openings is preferably between 0.2? and 10?, and ? represents the wavelength of the light beam.Type: GrantFiled: November 5, 2008Date of Patent: February 19, 2013Assignee: Industrial Technology Research InstituteInventors: Chia Hsin Chao, Chun Feng Lai, Han Tsung Hsueh, Jui Ying Lin, Wen Yung Yeh, Jim Yong Chi