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).

  • Patent number: 8999736
    Abstract: A method of making an optoelectronic system in accordance with the present disclosure is disclosed. The method includes providing a temporary substrate; providing un-packaged optoelectronic elements having sidewalls, top surfaces, and bottom surfaces, at least one of the unpackaged optoelectronic elements having an electrode provided on a side of the bottom surfaces; attaching the bottom surfaces to the temporary substrate such that a trench is formed between two of the un-packaged optoelectronic elements; providing an adhesive material to fully fill the trench and cover the un-packaged optoelectronic elements such that the sidewalls and top surfaces of the un-packaged optoelectronic elements are fully enclosed by the adhesive material; providing a transparent substrate on the adhesive material; and removing the temporary substrate without removing all the adhesive material covering the optoelectronic elements.
    Type: Grant
    Filed: July 21, 2010
    Date of Patent: April 7, 2015
    Assignee: Epistar Corporation
    Inventors: Min-Hsun Hsieh, Cheng-Nan Han, Steve Meng-Yuan Hong, Hsin-Mao Liu, Tsung-Xian Lee
  • Publication number: 20140361319
    Abstract: 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: Application
    Filed: August 22, 2014
    Publication date: December 11, 2014
    Inventors: Hsin-Mao LIU, Min-Hsun HSIEH, Tzer-Perng CHEN, Meng-Yuan HONG, Cheng Nan HAN, Tsung-Xian LEE, Ta-Cheng HSU, Chih-Chiang LU
  • Patent number: 8890178
    Abstract: A light-emitting element includes a monolithic understructure including a first surface and a second surface different from the first surface; a plurality of light-emitting structure units disposed on the second surface; and a trench formed on a portion of the first surface and between the plurality of light-emitting structure units, wherein a height of the portion of the first surface is greater than a height of the second surface measured from a bottom of the monolithic understructure, and the portion of the first surface is exposed by the trench.
    Type: Grant
    Filed: September 13, 2011
    Date of Patent: November 18, 2014
    Assignee: Epistar Corporation
    Inventors: Chien-Fu Huang, Chao-Hsing Chen, Chiu-Lin Yao, Hsin-Mao Liu, Chien-Kai Chung
  • Patent number: 8847248
    Abstract: A light-emitting device includes: a carrier; a light-emitting structure formed on the carrier, wherein the light-emitting structure has a first surface facing the carrier, a second surface opposite to the first surface, and an active layer between the first surface and the second surface; a plurality of first trenches extended from the first surface and passing through the active layer so a plurality of light-emitting units is defined; and a plurality of second trenches extended from the second surface and passing through the active layer of each of the plurality of light-emitting units.
    Type: Grant
    Filed: November 25, 2013
    Date of Patent: September 30, 2014
    Assignee: Epistar Corporation
    Inventors: Chien-Fu Huang, Chao-Hsing Chen, Chiu-Lin Yao, Hsin-Mao Liu, Chien-Kai Chung
  • Patent number: 8816508
    Abstract: An integrated lighting apparatus includes at least a lighting device, a control device comprising an integrated circuit, and a connector that is used to electrically connect the lighting device and the control device. With the combination, the integrated circuit drives the lighting device in accordance with its various designed functionality, thus expands applications of the integrated lighting apparatus.
    Type: Grant
    Filed: July 20, 2011
    Date of Patent: August 26, 2014
    Assignee: Epistar Corporation
    Inventors: Hsin-Mao Liu, Min-Hsun Hsieh, Tzer-Perng Chen, Meng-Yuan Hong, Cheng Nan Han, Tsung-Xian Lee, Ta-Cheng Hsu, Chih-Chiang Lu
  • Patent number: 8759848
    Abstract: The application provides a light-emitting device, comprising a substrate; a plurality of first light-emitting diode units on the substrate, wherein every first light-emitting diode unit has a first electrode structure; and a plurality of second light-emitting diode units among the plurality of first light-emitting diode units, wherein every second light-emitting diode unit has a second electrode structure. The second electrode structure of the second light-emitting diode unit is flipped over and electrically connected with the adjacent first electrode structure of the first light-emitting diode unit.
    Type: Grant
    Filed: July 10, 2012
    Date of Patent: June 24, 2014
    Assignee: Epistar Corporation
    Inventors: Chao-Hsing Chen, Chien-Kai Chung, Hsin-Mao Liu, Chiu-Lin Yao, Chien-Fu Huang
  • Publication number: 20140139138
    Abstract: 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: Application
    Filed: November 19, 2012
    Publication date: May 22, 2014
    Applicant: Epistar Corporation
    Inventors: Hsin-Mao LIU, Zong-Xi Chen
  • Publication number: 20140111104
    Abstract: 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: Application
    Filed: October 19, 2012
    Publication date: April 24, 2014
    Applicant: EPISTAR CORPORATION
    Inventors: Hsin-Mao Liu, Zong-Xi Chen
  • Publication number: 20140077238
    Abstract: A light-emitting device includes: a carrier; a light-emitting structure formed on the carrier, wherein the light-emitting structure has a first surface facing the carrier, a second surface opposite to the first surface, and an active layer between the first surface and the second surface; a plurality of first trenches extended from the first surface and passing through the active layer so a plurality of light-emitting units is defined; and a plurality of second trenches extended from the second surface and passing through the active layer of each of the plurality of light-emitting units.
    Type: Application
    Filed: November 25, 2013
    Publication date: March 20, 2014
    Applicant: Epistar Corporation
    Inventors: Chien-Fu HUANG, Chao-Hsing CHEN, Chiu-Lin YAO, Hsin-Mao LIU, Chien-Kai CHUNG
  • Publication number: 20140048825
    Abstract: 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: Application
    Filed: March 18, 2013
    Publication date: February 20, 2014
    Applicant: EPISTAR CORPORATION
    Inventors: Min Hsun Hsieh, Hsin-Mao Liu
  • Publication number: 20130313594
    Abstract: 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: Application
    Filed: May 2, 2013
    Publication date: November 28, 2013
    Applicant: EPISTAR CORPORATION
    Inventors: 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
  • Publication number: 20130314001
    Abstract: The present application provides a light-emitting device comprising a first light-emitting diode group; a second light-emitting diode group electrically connected to the first light-emitting diode group in parallel; and a temperature compensation. element electrically connected to the second light-emitting diode group in series; and a first switch device connected between the second light-emitting diode group and the temperature compensation element.
    Type: Application
    Filed: August 1, 2013
    Publication date: November 28, 2013
    Applicant: EPISTAR CORPORATION
    Inventors: Hsin-Mao LIU, Zong-Xi CHEN, Min-Hsun HSIEH, Chien-Yan WANG
  • Patent number: 8592827
    Abstract: A light-emitting device includes: a carrier; a light-emitting structure formed on the carrier, wherein the light-emitting structure has a first surface facing the carrier, a second surface opposite to the first surface, and an active layer between the first surface and the second surface; a plurality of first trenches extended from the first surface and passing through the active layer so a plurality of light-emitting units is defined; and a plurality of second trenches extended from the second surface and passing through the active layer of each of the plurality of light-emitting units.
    Type: Grant
    Filed: September 6, 2011
    Date of Patent: November 26, 2013
    Assignee: Epistar Corporation
    Inventors: Chien-Fu Huang, Chao-Hsing Chen, Chiu-Lin Yao, Hsin-Mao Liu, Chien-Kai Chung
  • Patent number: 8362501
    Abstract: The application illustrates a light-emitting device including a contact layer and a current spreading layer on the contact layer. A part of the contact layer is a rough structure and a part of the contact layer is a flat structure. A part of the current spreading layer is a rough structure and a part of the current spreading layer is a flat structure. The rough region of the contact layer and the rough region of the current spreading layer are substantially overlapped.
    Type: Grant
    Filed: April 29, 2010
    Date of Patent: January 29, 2013
    Assignee: Epistar Corporation
    Inventors: Hung-Chih Yang, Yu-Jiun Shen, Hsin-Mao Liu
  • Publication number: 20130015473
    Abstract: The application provides a light-emitting device, comprising a substrate; a plurality of first light-emitting diode units on the substrate, wherein every first light-emitting diode unit has a first electrode structure; and a plurality of second light-emitting diode units among the plurality of first light-emitting diode units, wherein every second light-emitting diode unit has a second electrode structure. The second electrode structure of the second light-emitting diode unit is flipped over and electrically connected with the adjacent first electrode structure of the first light-emitting diode unit.
    Type: Application
    Filed: July 10, 2012
    Publication date: January 17, 2013
    Inventors: CHAO-HSING CHEN, CHIEN-KAI CHUNG, HSIN-MAO LIU, CHIU-LIN YAO, CHIEN-FU HUANG
  • Publication number: 20120161651
    Abstract: This disclosure discloses a light-emitting device. The light-emitting device is capable of receiving a periodic voltage signal comprising a first voltage signal and a second voltage signal. The light-emitting device comprises: a first light-emitting unit; a second light-emitting unit; and a first switching unit comprising at least three switches for receiving the periodic voltage signal. The at least three switches are electrically connected with the first and second light-emitting units such that the first and second light-emitting units are connected in parallel with each other in the first voltage signal, and are connected in series with each other in the second voltage signal.
    Type: Application
    Filed: December 23, 2011
    Publication date: June 28, 2012
    Inventors: Schang-Jing HON, Chao-Hsing Chen, Hsin-Mao Liu
  • Publication number: 20120080697
    Abstract: 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: Application
    Filed: July 1, 2011
    Publication date: April 5, 2012
    Applicant: Epistar Corporation
    Inventors: 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
  • Publication number: 20120061694
    Abstract: An embodiment of the present application discloses a light-emitting structure, comprising a first unit; a second unit; a trench formed between the first unit and the second unit, and having a less steep sidewall and a steeper sidewall steeper than the less steep sidewall; and an electrical connection arranged on the less steep sidewall.
    Type: Application
    Filed: September 13, 2011
    Publication date: March 15, 2012
    Applicant: Epistar Corporation
    Inventors: 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
  • Publication number: 20120061667
    Abstract: A light-emitting element includes: a substrate including a first surface and a second surface different from the first surface; a plurality of light-emitting structure units disposed on the second surface; and a trench formed on the first surface and between the plurality of light-emitting structure units.
    Type: Application
    Filed: September 13, 2011
    Publication date: March 15, 2012
    Inventors: Chein-Fu Huang, Chao-Hsing CHEN, Chiu-Lin Yao, Hsin-Mao Liu, Chien-Kai Chung
  • Publication number: 20120055532
    Abstract: 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: Application
    Filed: September 6, 2011
    Publication date: March 8, 2012
    Applicant: Epistar Corporation
    Inventors: 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