Patents by Inventor Tzu-Chi Cheng

Tzu-Chi Cheng 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: 8450748
    Abstract: A light emitting device comprises: an LED chip array comprising a plurality of LEDs formed on a single die (monolithic chip array) and at least one discrete LED that is separate from the LED chip array connected in series with the LED chip array. In an AC-drivable device the LED chip array is AC-drivable and two or more discrete LEDs are configured to be AC-drivable. The device can further comprise a package in which the LED chip array and discrete LED(s) are mounted. The discrete LEDs are configured such that positive and negative half wave periods of an AC drive voltage are mapped onto oppositely connected LED such that oppositely connected LED chips are alternately operable on a respective half wave period.
    Type: Grant
    Filed: July 8, 2010
    Date of Patent: May 28, 2013
    Assignee: InterLight Optotech Corporation
    Inventors: Hwa Su, Hsi-Yan Chou, Yu-Min Li, Yu-Chou Hu, Chih Wei Huang, Tzu-Chi Cheng
  • Patent number: 8450759
    Abstract: A light emitting diode (LED) package structure includes a substrate, at least one enclosure made of a transparent material, an LED, a first package material, and a second package material. The enclosure is disposed on a surface of the substrate, and forms a configuration area for disposing the LED therein. The first package material made of a transparent material is disposed in the configuration area and covers the LED. The second package material containing a fluorescent material covers the enclosure, the LED, and the first package material.
    Type: Grant
    Filed: January 31, 2011
    Date of Patent: May 28, 2013
    Assignee: Intematix Technology Center Corporation
    Inventor: Tzu-Chi Cheng
  • Publication number: 20120326341
    Abstract: A method for fabricating a self assembling light emitting diode lens is disclosed. The method includes providing a first fluid with a first viscosity and a second fluid with a second viscosity. The refractive index of the first fluid is the same as the refractive index of the second fluid. Then the first fluid and the second fluid are blended in a predetermined ratio to obtain a third fluid with a third viscosity. Then the third fluid is dispended on a light emitting diode, which is disposed on a substrate. The third fluid is cured to form a lens on the light emitting diode. The shape of the lens is controlled by the third viscosity.
    Type: Application
    Filed: June 23, 2011
    Publication date: December 27, 2012
    Inventors: Tzu-Chi CHENG, Charles Owen Edwards, Chien-Li Yang, Yu-Min Li
  • Publication number: 20120098001
    Abstract: A light emitting diode (LED) package structure includes a substrate, at least one enclosure made of a transparent material, an LED, a first package material, and a second package material. The enclosure is disposed on a surface of the substrate, and forms a configuration area for disposing the LED therein. The first package material made of a transparent material is disposed in the configuration area and covers the LED. The second package material containing a fluorescent material covers the enclosure, the LED, and the first package material.
    Type: Application
    Filed: January 31, 2011
    Publication date: April 26, 2012
    Applicant: INTEMATIX TECHNOLOGY CENTER CORPORATION
    Inventor: Tzu Chi Cheng
  • Publication number: 20110291114
    Abstract: A light-emitting diode (LED) package structure includes a substrate, a first LED, a second LED, and a resin material. At least one enclosure made of a transparent material forms on a surface of the substrate, and encloses and forms at least one area on the substrate. The first LED and the second LED are disposed in the area and adjacent to each other, and the resin material is disposed in the area, and covers the first LED and the second LED. The LED package structure obtains desired illuminating lights by mixing lights respectively emitted by the first LED and the second LED.
    Type: Application
    Filed: September 24, 2010
    Publication date: December 1, 2011
    Applicant: INTEMATIX TECHNOLOGY CENTER CORPORATION
    Inventor: Tzu-Chi Cheng
  • Publication number: 20110180804
    Abstract: A light emitting device comprises: an LED chip array comprising a plurality of LEDs formed on a single die (monolithic chip array) and at least one discrete LED that is separate from the LED chip array connected in series with the LED chip array. In an AC-drivable device the LED chip array is AC-drivable and two or more discrete LEDs are configured to be AC-drivable. The device can further comprise a package in which the LED chip array and discrete LED(s) are mounted. The discrete LEDs are configured such that positive and negative half wave periods of an AC drive voltage are mapped onto oppositely connected LED such that oppositely connected LED chips are alternately operable on a respective half wave period.
    Type: Application
    Filed: July 8, 2010
    Publication date: July 28, 2011
    Applicant: INTEMATIX CORPORATION
    Inventors: Hwa Su, Hsi-Yan Chou, Yu-Min Li, Yu-Chou Hu, Chih Wei Huang, Tzu-Chi Cheng
  • Publication number: 20110084296
    Abstract: A light emitting diode manufacturing method introduces a transparent enclosure to improve the uniformity of coating phosphor, so as to achieve the purposes of enhancing the uniform color temperature and the light emitting efficiency. The manufacturing method is used extensively for packaging various types of light emitting diode chips and mass production.
    Type: Application
    Filed: August 20, 2010
    Publication date: April 14, 2011
    Applicant: Intematix Technology Center Corp.
    Inventor: Tzu-Chi Cheng
  • Publication number: 20070103931
    Abstract: An assembly device for a sidelight light source module and liquid crystal panel, comprising: a liquid crystal panel; a light guide panel; a light reflecting plate; a light source module installed at a side of the light guide panel; wherein the light source module comprises: a circuit board, on top of is soldered blue light chips and red light chips; a luminescence fluorescent layer positioned on top of the blue light chips and the red light chips. Mixed light consisting of the excited light, the blue light and the red light is transmitted out the fluorescent layer and forms a white light that passes through the light guide panel, the light reflecting plate, and is finally transmitted out the liquid crystal panel.
    Type: Application
    Filed: November 9, 2005
    Publication date: May 10, 2007
    Inventors: Kun-Chui Lee, Tzu-Chi Cheng
  • Publication number: 20070103930
    Abstract: An assembled device of a light module and a liquid crystal panel is composed of a liquid crystal panel whose bottom surface is provided with a light module which includes a circuit board on which are welded at least more than one blue light chip, which is next to a red light chip, as a blue light emitting source, and more than one red light chip as a red light emitting source. A light emitting illumination layer, which is made by uniformly mixing an illumination powder with a transparent glue, is located above the blue light chip and the red light chip, so as to develop into a white light as a back light source whose rendering effect and uniformity are of a good quality and can be easily controlled.
    Type: Application
    Filed: November 9, 2005
    Publication date: May 10, 2007
    Inventors: Kun-Chui Lee, Tzu-Chi Cheng
  • Publication number: 20070103900
    Abstract: A white light emitting device is composed of at least more than one blue light LED which can emit a blue light, at least more than one red light LED which can emit a red light, and an illuminator made by uniformly mixing a greenish yellow illumination material, a blue illumination material, and a transparent glue, wherein the illuminator can absorb the blue light, such that the illuminator will be excited to a first mixed light having a wavelength different than that of the blue light. The first mixed light is mixed with a red light emitted from the red light LED to release a second mixed light which is provided with a high rendering effect and saturation of color.
    Type: Application
    Filed: November 9, 2005
    Publication date: May 10, 2007
    Inventors: Kun Lee, Tzu-Chi Cheng, Jung-Pin Cheng
  • Patent number: 7207691
    Abstract: A light emitting device including three light emitting sources and a phosphor, with the three light sources consisted of following light emitting diodes (LED) emitting lights having different wavelengths. Wherein, two light sources are used to excite the phosphor to produce a distinct wavelength different from those of the two light sources. The distinct wavelength is blended with portions of the two light sources and a light source from another independent light source, and a blended light is released to obtain a white light.
    Type: Grant
    Filed: June 4, 2004
    Date of Patent: April 24, 2007
    Inventors: Kun-Chui Lee, Tzu-Chi Cheng, Jung-Pin Cheng
  • Publication number: 20060061261
    Abstract: A white light emitting device includes a device having at least one light emitting diode (LED) serving as a light source and being capable of emitting a light between blue and green in color; and a phosphor consisted of first and second phosphors each made of a compound from different materials. The phosphor is excited by the light from the light source to emit a first-color light and a second-color light, which are both blended with a portion of the light and altogether release to obtain a white light having enhanced color rendering effects, thereby offering the white light with illuminant contrast.
    Type: Application
    Filed: September 22, 2004
    Publication date: March 23, 2006
    Inventors: Kun-Chui Lee, Tzu-Chi Cheng, Jung-Pin Cheng
  • Publication number: 20050117334
    Abstract: A light emitting device includes at least three light emitting source and a phosphor, with the three light sources consisted of following light emitting diodes (LED) emitting lights having different wavelengths. Wherein, two light sources are used to excite the phosphor to produce a distinct wavelength different from those of the two light sources. The distinct wavelength is blended with portions of the two light sources and a light source from another independent light source, and a blended light is released to obtain a white light having an excellent color rendering index.
    Type: Application
    Filed: June 4, 2004
    Publication date: June 2, 2005
    Inventors: Kun-Chui Lee, Tzu-Chi Cheng, Jung-Pin Cheng