Patents by Inventor Hsin-Mao Liu
Hsin-Mao 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).
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Patent number: 9455242Abstract: A semiconductor optoelectronic device comprises a growth substrate; a semiconductor epitaxial stack formed on the growth substrate comprising a sacrificial layer with electrical conductivity formed on the growth substrate; a first semiconductor material layer having a first electrical conductivity formed on the sacrificial layer, and a second semiconductor material layer having a second electrical conductivity formed on the first semiconductor material layer; and a first electrode directly formed on the growth substrate and electrically connected to the semiconductor epitaxial stack via the growth substrate.Type: GrantFiled: September 6, 2011Date of Patent: September 27, 2016Assignee: EPISTAR CORPORATIONInventors: Hsin-Ying Wang, Yi-Ming Chen, Tzu-Chieh Hsu, Chi-Hsing Chen, Chien-Kai Chung, Min-Hsun Hsieh, Chia-Liang Hsu, Chao-Hsing Chen, Chiu-Lin Yao, Chien-Fu Huang, Hsin-Mao Liu, Hsiang-Ling Chang
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Patent number: 9456484Abstract: The light-emitting device disclosed herein comprises a step down circuit and a current limit device, wherein the step down circuit prevents the current signal provided to the light-emitting device larger than the rating current value of the light-emitting device. Moreover, the current limit device only limits current signal while the power supply surges. The two stages protect circuit turn less power to heat.Type: GrantFiled: October 19, 2012Date of Patent: September 27, 2016Assignee: EPISTAR CORPORATIONInventors: Hsin-Mao Liu, Zong-Xi Chen
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Publication number: 20160276403Abstract: A method of forming a light-emitting device. The light-emitting device includes a first optoelectronic unit, a second optoelectronic unit, a fence, and a cover. The first optoelectronic unit has a first side surface. The second optoelectronic unit is apart from the first optoelectronic unit and has a second side surface. The fence surrounds the first side surface and the second side surface. The cover is on the first optoelectronic unit and the fence.Type: ApplicationFiled: May 27, 2016Publication date: September 22, 2016Inventors: Min Hsun HSIEH, Hsin-Mao LIU
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Patent number: 9406719Abstract: A light-emitting structure, comprising a substrate; a first unit and a second unit, separately formed on the substrate; a trench between the first unit and the second unit, comprising a bottom portion exposing the substrate; an insulating layer arranged on the trench, conformably covering the bottom portion and sidewalls of the first unit and the second unit; and an electrical connection, conformably covering the insulating layer, electrically connecting the first unit and the second unit and comprising a bridging portion and a joining portion extending from the bridging portion, wherein the bridging portion is wider than the joining portion and the bridging portion covers the trench, and the joining portion covers the first unit and the second unit.Type: GrantFiled: October 27, 2015Date of Patent: August 2, 2016Assignee: EPISTAR CORPORATIONInventors: Chien-Fu Shen, Chao-Hsing Chen, Tsun-Kai Ko, Schang-Jing Hon, Sheng-Jie Hsu, De-Shan Kuo, Hsin-Ying Wang, Chiu-Lin Yao, Chien-Fu Huang, Hsin-Mao Liu, Chien-Kai Chung
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Patent number: 9356070Abstract: This disclosure discloses a light-emitting display module display. The light-emitting display module comprises: a board; and a plurality of light-emitting diode modules arranged in an array configuration on the board; wherein one of the light-emitting diode modules comprises a plurality of encapsulated light-emitting units spaced apart from each other; and one of the encapsulated light-emitting units comprises a plurality of optoelectronic units, a first supporting, and a fence; and wherein the plurality of optoelectronic units are covered by the first supporting structure, and the fence surrounds the first supporting structure and the plurality of optoelectronic units.Type: GrantFiled: March 18, 2013Date of Patent: May 31, 2016Assignee: EPISTAR CORPORATIONInventors: Min Hsun Hsieh, Hsin-Mao Liu
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Publication number: 20160049442Abstract: A light-emitting structure, comprising a substrate; a first unit and a second unit, separately formed on the substrate; a trench between the first unit and the second unit; and an electrical connection, electrically connecting the first unit and the second unit and comprising a bridging portion and a joining portion extending from the bridging portion, wherein the bridging portion is wider than the joining portion and the bridging portion is configured to cover the trench, and the joining portion is configured to cover first unit and the second unit.Type: ApplicationFiled: October 27, 2015Publication date: February 18, 2016Inventors: Chien-Fu SHEN, Chao-Hsing CHEN, Tsun-Kai KO, Schang-Jing HON, Sheng-Jie HSU, De-Shan KUO, Hsin-Ying WANG, Chiu-Lin YAO, Chien-Fu HUANG, Hsin-Mao LIU, Chien-Kai CHUN
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Patent number: 9258867Abstract: A light emitting apparatus disclosed herein comprises a first control apparatus, a first light emitting device, a sense apparatus, a second control apparatus, a power source and a second light emitting device, wherein the second light emitting device is electrically connected to the power source which is not connected to the first light emitting device. The sense apparatus senses both temperature and current of the first light emitting device to generate a second driving signal. The second driving signal is then provided to control the second light emitting device to emit a light for compensating the CCT shift of the light emitted by the first light emitting device.Type: GrantFiled: November 19, 2012Date of Patent: February 9, 2016Assignee: EPISTAR CORPORATIONInventors: Hsin-Mao Liu, Zong-Xi Chen
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Publication number: 20160027745Abstract: The present disclosure provides a light emitting device including a serially-connected LED array comprising a plurality of LED cells on a substrate. The serially-connected LED array includes a first LED cell, a second LED cell, and a serially-connected LED sub-array comprising at least three LED cells intervening between the first and second LED cell; and a plurality of conducting metals formed on the LED cells to electrically connect the plurality of LED cell in series; wherein among the LED sub-array which are continuously and sequentially connected by the conducting metals, each LED cell connects to a previous LED cell by a first connecting direction and connects to a next LED cell by a second connecting direction, the first connecting direction is not parallel to the second connecting direction.Type: ApplicationFiled: October 2, 2015Publication date: January 28, 2016Inventors: Chao Hsing CHEN, Chien Fu SHEN, Tsun Kai KO, Schang Jing HON, Hsin Mao LIU
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Publication number: 20160013371Abstract: An optoelectronic element includes an optoelectronic unit, a first metal layer, a second metal layer, a conductive layer and a transparent structure. The optoelectronic unit has a central line in a top view, a top surface, and a bottom surface. The second metal layer is formed on the top surface, and has an extension portion crossing over the central line and extending to the first metal layer. The conductive layer covers the first metal layer and the extension portion. The transparent structure covers the bottom surface without covering the top surface.Type: ApplicationFiled: September 18, 2015Publication date: January 14, 2016Inventors: Cheng-Nan HAN, Tsung-Xian LEE, Min-Hsun HSIEH, Hung-Hsuan CHEN, Hsin-Mao LIU, Hsing-Chao CHEN, Ching San TAO, Chih-Peng NI, Tzer-Perng CHEN, Jen-Chau WU, Masafumi SANO, Chih-Ming WANG
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Patent number: 9232586Abstract: A light-emitting device is capable of receiving a first voltage signal, a second voltage signal, and a third voltage signal in sequence. The light-emitting device includes a first light-emitting unit, a second light-emitting unit, and a switching. The first voltage signal, the second voltage signal, and the third voltage signal is configured to introduce a first current signal, a second current signal, and a third current signal, respectively. The light-emitting device is configured to emit a first light when introducing the first current signal, the second current signal, and the third current signal. The light-emitting device is configured to emit a second light when introducing the second current signal and the third current signal. The light-emitting device is configured to emit a third light when introducing the second current signal.Type: GrantFiled: December 23, 2011Date of Patent: January 5, 2016Assignee: Epistar CorporationInventors: Schang-Jing Hon, Chao-Hsing Chen, Hsin-Mao Liu
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Patent number: 9196605Abstract: An embodiment of the present application discloses a light-emitting structure, comprising a substrate, a first unit and a second unit separately form on the substrate; a trench formed between the first unit and the second unit, and having a bottom portion exposing the substrate, a less steep sidewall and a steeper sidewall steeper than the less steep sidewall; and an electrical connection connecting the first unit and the second unit and covering the first unit, the second unit and the less steep sidewall; wherein the sidewalls directly connect to the bottom portion, and the steeper sidewall is devoid of the electrical connection covering.Type: GrantFiled: September 13, 2011Date of Patent: November 24, 2015Assignee: EPISTAR CORPORATIONInventors: Chien-Fu Shen, Chao-Hsing Chen, Tsun-Kai Ko, Schang-Jing Hon, Sheng-Jie Hsu, De-Shan Kuo, Hsin-Ying Wang, Chiu-Lin Yao, Chien-Fu Huang, Hsin-Mao Liu, Chien-Kai Chung
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Patent number: 9171883Abstract: The present disclosure provides a light emitting device, including a serially- connected LED array including a plurality of LED cells on a substrate, including a first LED cell, a second LED cell, and a serially-connected LED sub-array intervening the first and second LED cell; a trench between two neighboring sides of the first and the second LED cells; and a protecting structure formed near the trench to prevent the light-emitting device from being damaged by a surge voltage higher than a normal operating voltage. The protecting structure includes a first insulating layer and a second insulating layer formed over the first insulating layer and partially filling in the trench, wherein two ends of the first insulating layer extending outward from the second insulating layer partially covers the top surfaces of the first and the second LED cells.Type: GrantFiled: August 4, 2011Date of Patent: October 27, 2015Assignee: EPISTAR CORPORATIONInventors: Chao Hsing Chen, Chien Fu Shen, Tsun Kai Ko, Schang Jing Hon, Hsin Mao Liu
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Patent number: 9142740Abstract: An optoelectronic element includes an optoelectronic unit having a first top surface; a first metal layer on the first top surface; a first transparent structure surrounding the optoelectronic unit and exposing the first top surface; and a first contact layer on the first transparent structure, including a connective part electrically connected with the first metal layer.Type: GrantFiled: May 2, 2013Date of Patent: September 22, 2015Assignee: EPISTAR CORPORATIONInventors: Cheng-Nan Han, Tsung-Xian Lee, Min-Hsun Hsieh, Hung-Hsuan Chen, Hsin-Mao Liu, Hsing-Chao Chen, Ching-San Tao, Chih-Peng Ni, Tzer-Perng Chen, Jen-Chau Wu, Masafumi Sano, Chih-Ming Wang
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Publication number: 20150214449Abstract: The disclosure discloses an optoelectronic element comprising: an optoelectronic unit comprising a first metal layer, a second metal layer, and an outermost lateral surface; an insulating layer having a first portion overlapping the optoelectronic unit and extending beyond the lateral surface, and a second portion separated from the first portion in a cross-sectional view; and a first conductive layer formed on the insulating layer.Type: ApplicationFiled: April 6, 2015Publication date: July 30, 2015Inventors: Cheng-Nan HAN, Tsung-Xian LEE, Min-Hsun HSIEH, Hung-Hsuan CHEN, Hsin-Mao LIU, Hsing-Chao CHEN, Ching-San TAO, Chih-Peng NI, Tzer- Perng CHEN, Jen-Chau WU
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Patent number: 9087967Abstract: A light-emitting device of an embodiment of the present application comprises a substrate; a first semiconductor light-emitting structure formed on the substrate, wherein the first semiconductor light-emitting structure comprises a first semiconductor layer having a first conductivity type, a second semiconductor layer having a second conductivity type and a first active layer formed between the first semiconductor layer and the second semiconductor layer, wherein the first active layer is capable of emitting a first light having a first dominant wavelength; and a first thermal-sensitive layer formed on a path of the first light, wherein the first thermal-sensitive layer comprises a material characteristic which varies with a temperature change.Type: GrantFiled: April 3, 2013Date of Patent: July 21, 2015Assignee: EPISTAR CORPORATIONInventors: Shih-I Chen, Tsung-Xian Lee, Yi-Ming Chen, Wei-Yu Chen, Ching-Pei Lin, Min-Hsun Hsieh, Cheng-Nan Han, Tien-Yang Wang, Hsing-Chao Chen, Hsin-Mao Liu, Zong-Xi Chen, Tzu-Chieh Hsu, Chien-Fu Huang, Yu-Ren Peng
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Publication number: 20150194586Abstract: A light-emitting device is disclosed. The light-emitting device comprises a supportive substrate; a first light-emitting element and a second light-emitting element on the supportive substrate, wherein the first light-emitting element comprises a transparent layer on the supportive substrate, a first light-emitting stacked layer on the transparent layer, and a plurality of contact parts between the transparent layer and the first light-emitting stacked layer; and the second light-emitting element comprises an electrode and a second light-emitting stacked layer between the electrode and the supportive substrate; and a metal line on the supportive substrate and electrically connecting the electrode and one of the contact parts.Type: ApplicationFiled: March 20, 2015Publication date: July 9, 2015Inventors: Shih-I CHEN, Chia-Liang HSU, Tzu-Chieh HSU, Han-Min WU, Ye-Ming HSU, Chien-Fu HUANG, Chao-Hsing CHEN, Chiu-Lin YAO, Hsin-Mao LIU, Chien-Kai CHUNG
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Publication number: 20150188003Abstract: An embodiment of the invention discloses an optoelectronics system. The optoelectronic system includes an optoelectronic element having a first width; an adhesive material enclosing the optoelectronic element and having a second width larger than the first width; a phosphor structure formed between the optoelectronic element and the adhesive material; and a transparent substrate formed on the adhesive material.Type: ApplicationFiled: March 13, 2015Publication date: July 2, 2015Inventors: Min-Hsun HSIEH, Cheng-Nan HAN, Steve Meng-Yuan HONG, Hsin-Mao LIU, Tsung-Xian LEE
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Patent number: 9024451Abstract: An integrated lighting apparatus comprises a first control device including a semiconductor substrate, an integrated circuit block formed above a first portion of the semiconductor substrate, and a plurality of power pads formed above the integrated circuit block; a first light emitting device formed above a second portion of the semiconductor substrate; and a through plug passing through the semiconductor substrate for electrically connecting the first control device and the first light emitting device.Type: GrantFiled: August 22, 2014Date of Patent: May 5, 2015Assignee: Epistar CorporationInventors: Hsin-Mao Liu, Min-Hsun Hsieh, Tzer-Perng Chen, Meng-Yuan Hong, Cheng Nan Han, Tsung-Xian Lee, Ta-Cheng Hsu, Chih-Chiang Lu
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Patent number: 9012948Abstract: A light-emitting element includes a supportive substrate; a reflective layer formed on the supportive substrate; a transparent layer formed on the reflective layer; a light-emitting stacked layer formed on the transparent layer; an etching-stop layer formed between the transparent layer and the reflective layer; and a plurality of contact parts formed between the light-emitting stacked layer and the transparent layer.Type: GrantFiled: July 1, 2011Date of Patent: April 21, 2015Assignee: Epistar CorporationInventors: Shih-I Chen, Chia-Liang Hsu, Tzu-Chieh Hsu, Han-Min Wu, Ye-Ming Hsu, Chien-Fu Huang, Chao-Hsing Chen, Chiu-Lin Yao, Hsin-Mao Liu, Chien-Kai Chun
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Patent number: 9000461Abstract: An optoelectronic element includes an optoelectronic unit having a first top surface, a first bottom surface opposite to the first top surface, and a lateral surface between the first top surface and the first bottom surface; a first transparent structure covering the lateral surface and exposing the first top surface of the optoelectronic unit; a first insulating layer on the first top surface and the first transparent structure; a second insulating layer on the first insulating layer; a first opening through the first insulating layer and the second insulating layer; and a first conductive layer on the second insulating layer and electrically connecting to the optoelectronic unit via the first opening.Type: GrantFiled: August 9, 2011Date of Patent: April 7, 2015Assignee: Epistar CorporationInventors: Cheng-Nan Han, Tsung-Xian Lee, Min-Hsun Hsieh, Hung-Hsuan Chen, Hsin-Mao Liu, Hsing-Chao Chen, Ching-San Tao, Chih-Peng Ni, Tzer-Perng Chen, Jen-Chau Wu