Patents by Inventor Rong-Chang Liang

Rong-Chang Liang 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).

  • Transmissive or reflective liquid crystal display
    Patent number: 8023071
    Abstract: This invention relates to a liquid crystal display with improved contrast ratio, switching performance, reflectivity at the Dmin state and structural integrity, and methods for its manufacture. The liquid crystal display of the present invention comprises microcups as display cells, wherein the microcups are formed from a microcup composition and filled with a liquid crystal composition.
    Type: Grant
    Filed: August 17, 2006
    Date of Patent: September 20, 2011
    Assignee: SiPix Imaging, Inc.
    Inventors: Rong-Chang Liang, Scott C-J Tseng, Ying-Syi Li, HongMei Zang
  • LATENT HARDENER WITH IMPROVED BARRIER PROPERTIES AND COMPATIBILITY
    Publication number: 20110220401
    Abstract: A curing agent for epoxy resins that is comprised of the reaction product of an amine, an epoxy resin, and an elastomer-epoxy adduct; compositions containing the curing agent and an epoxy resin; the compositions are useful in electronic displays, circuit boards, semi conductor devices, flip chips and other applications.
    Type: Application
    Filed: April 19, 2010
    Publication date: September 15, 2011
    Applicant: TRILLION SCIENCE, INC.
    Inventors: Yurong Ying, John J. McNamara, Jing Liang, Rong-Chang Liang
  • Magnetophoretic and electromagnetophoretic displays
    Patent number: 8018643
    Abstract: The present invention is directed to a display device which comprises two layers of insulating substrate, at least the substrate on the viewing side is transparent, an array of display cells sandwiched between the two layers of substrate, a writing means, and optionally an erasing means to magnetically or electrically erase the image. The display cells are filled with a dispersion of magnetic particles which may be charged or non-charged. The display of the invention eliminates the use of the transparent conductor film, such as ITO, on the viewing side. Therefore, the displays of this invention are more cost effective, more flexible and durable and capable of higher image contrast ratio and higher reflectance in the Dmin area.
    Type: Grant
    Filed: July 24, 2009
    Date of Patent: September 13, 2011
    Assignee: SiPix Imaging, Inc.
    Inventors: Ching-Shon Ho, Jerry Chung, Paul Gendler, Rong-Chang Liang, HongMei Zang
  • PROCESS FOR PREPARING A DISPLAY PANEL
    Publication number: 20110217896
    Abstract: This application is directed to processes for preparing electrophoretic displays and semi-finished display panels comprising display cells prepared from the microcup and top-sealing technologies. The semi-finished display panel comprises an array of display cells sandwiched between two temporary substrate layers, between a temporary substrate layer and a conductor layer or between a temporary substrate layer and a permanent substrate layer, wherein said display cells are filled with an electrophoretic fluid and top-sealed with a polymeric sealing layer formed from a top-sealing composition which is being hardened while on top of the electrophoretic fluid.
    Type: Application
    Filed: February 14, 2011
    Publication date: September 8, 2011
    Inventors: Rong-Chang Liang, Mary Chan-Park, Scott C-J Tseng, Zarng-Arh George Wu, HongMei Zang, Xiaojia Wang
  • Process for forming a patterned thin film structure on a substrate
    Patent number: 8002948
    Abstract: A process for forming a patterned thin film structure on a substrate is disclosed. A pattern is printed with a material, such as a masking coating or an ink, on the substrate, the pattern being such that, in one embodiment, the desired thin film structures will be formed in the areas where the printed material is not present, i.e., a negative image of thin film structure to be formed is printed. In another embodiment, the pattern is printed with a material that is difficult to strip from the substrate, and the desired thin film structures will be formed in the areas where the printed material is present, i.e., a positive image of the thin film structure is printed. The thin film material is deposited on the patterned substrate, and the undesired area is stripped, leaving behind the patterned thin film structures.
    Type: Grant
    Filed: July 12, 2007
    Date of Patent: August 23, 2011
    Assignees: SiPix Imaging, Inc., Etansi Inc.
    Inventors: Jeanne E. Haubrich, Yi-Shung Chaug, Zarng-Arh George Wu, Rong-Chang Liang, Xiaojia Wang
  • Display cell, display apparatus and method for making same
    Publication number: 20110169019
    Abstract: In an electrophoretic display device comprising a plurality of pixels, each pixel having a cell area containing a plurality of charged pigment particles dispersed between two opposite electrodes, a semiconducting passivation layer is provided on one or both of the two opposite electrodes. The semiconducting passivation layer can be made of MOx/y, MSx/y, or MNx/y where M is a metal or semiconductor such as Al, Sn, Zn, Si, Ge, Ni, Ti or Cd; x is a positive integer; and y is independently a non-zero positive integer. The semiconducting passivation layer may have a doped Si, ZnOx/y, ZnSx/y, CdSx/y and TiOx/y or a III-V type semiconducting material. The semiconducting passivation layer can be doped with a dopant which can be an n-type doner or a p-type acceptor, the n-type doner is N, P, As or F; and the p-type acceptor is B, Al, Ga, In, Be, Mg or Ca.
    Type: Application
    Filed: January 7, 2011
    Publication date: July 14, 2011
    Inventors: Jau Shiu Chen, Rong Chang Liang, Ming Wei Tsai
  • Process for forming a patterned thin film structure for in-mold decoration
    Patent number: 7972472
    Abstract: A process for forming a patterned thin film structure on a substrate or in-mold decoration film is disclosed. A pattern is printed with a material, such as a masking coating or ink, on the substrate, the pattern being such that, in one embodiment, the desired structures will be formed in the areas where the printed material is not present, i.e., a negative image of thin film structure to be formed is printed. In another embodiment, the pattern is printed with a material that is difficult to strip from the substrate, and the desired thin film structures will be formed in the areas where the printed material is present, i.e., a positive image of the thin film structure is printed. The thin film material is deposited on the patterned substrate, and the undesired area is stripped, leaving behind the patterned thin film structure.
    Type: Grant
    Filed: December 18, 2006
    Date of Patent: July 5, 2011
    Assignees: SiPix Imaging, Inc., Etansi Inc.
    Inventors: Yi-Shung Chaug, Xiaojia Wang, Sean Kiluk, Scott Tseng, HongMei Zang, Rong-Chang Liang
  • High performance capsules for electrophoretic displays
    Patent number: 7955532
    Abstract: The present invention is directed to novel non-aqueous capsules suitable as display cells for an electrophoretic display and the encapsulation process for their manufacture. The present invention is also directed to an encapsulation process for the preparation of non-aqueous capsules suitable as display cells for an electrophoretic display. The process comprises emulsifying an internal phase comprising pigment particles or pigment-containing microparticles dispersed in a halogenated solvent and a halogenated shell-forming material into an external phase comprising a complementary chain extender or crosslinker in an organic solvent.
    Type: Grant
    Filed: January 29, 2007
    Date of Patent: June 7, 2011
    Assignee: SiPix Imaging, Inc.
    Inventors: Rong-Chang Liang, HongMei Zang
  • Fluorinated dyes or colorants and their uses
    Patent number: 7951938
    Abstract: The present invention relates to novel fluorinated dyes or colorants having high solubility and low viscosity in halogenated, especially fluorinated, solvents. The dyes or colorants of the present invention have shown to improve the performance of electrophoretic displays. The invention is particularly directed to a fluorinated porphyrin dye or colorant expressed by Formula (VII).
    Type: Grant
    Filed: March 21, 2008
    Date of Patent: May 31, 2011
    Assignee: SiPix Imaging, Inc.
    Inventors: Jin Yang, Kai-Chia Feng, Ying-Syi Li, HongMei Zang, Hong Wang, Chien-Hung Chou, Rong-Chang Liang
  • Durable layer composition for in-mold decoration
    Patent number: 7927711
    Abstract: This invention relates to a durable layer for in-mold decoration. The durable layer is formed from a composition comprising (i) a thermally crosslinkable and photochemically or radically graftable polymer, (ii) a non-ethylenical thermal crosslinker, and (iii) a radiation curable multifunctional monomer or oligomer. The durable layer of the present invention has excellent surface quality with a wider geometric tolerance and can be formed at low cost.
    Type: Grant
    Filed: May 1, 2007
    Date of Patent: April 19, 2011
    Assignee: SiPix Chemical Inc.
    Inventors: Xiaojia Wang, Haiyan Gu, Fei Wang, HongMei Zang, Tina Wu, Xin Huo, Rong-Chang Liang
  • Epoxy compositions
    Patent number: 7923488
    Abstract: An epoxy composition for applications such as one-part adhesives, coatings, prepreg and molding compounds that includes leuco dyes, particularly those comprising a N,N-dialkylamino-, N,N-diarylamino-, N-alkyl-N-arylamino-, N-alkylamino- or N-arylamino- functional group on one of the aromatic rings, as a co- catalyst or co-curing agent. The use of the leuco dye co-catalyst provides improved curing speed of the epoxy composition comprising a latent curing agent/catalyst such as imidazole microcapsules while maintaining the shelf-life stability. The epoxy may also include a secondary co-catalyst that includes a urea, particularly those comprising a N,N-dialkylamino-, N,N-diarylamino-, N-alkyl-N-arylamino- or dicycloalkylamino- functional group. Secondary cocatalysts of low mobility at the storage conditions are particularly preferred.
    Type: Grant
    Filed: October 16, 2006
    Date of Patent: April 12, 2011
    Assignee: Trillion Science, Inc.
    Inventors: Qianfei Xu, Chung-Jen Hou, Rong-Chang Liang
  • PROTECTIVE MATERIAL AND ENERGY STORAGE MODULE USING THE SAME
    Publication number: 20110070481
    Abstract: The present invention provides a protective material, which includes an acidic material and an absorbent additive. An alkaline electrolyte will be neutralized by the acidic material, and water produced from the neutralization reaction of the acidic material and the alkaline electrolyte will be absorbed by the absorbent additive. In addition, the present invention also discloses an energy storage module using the same.
    Type: Application
    Filed: September 8, 2010
    Publication date: March 24, 2011
    Applicant: DELTA ELECTRONICS, INC.
    Inventors: Rong-Chang LIANG, Chieh-Lin Hsing, Hsiao-Wen Huang, Mei-Yu Yeh
  • Release layer for in-mold decoration
    Patent number: 7910205
    Abstract: This invention relates to a composition suitable for the formation of a release layer in an in-mold decoration or thermal transfer printing process. The invention also relates to a process for the formation of a release layer comprising dispersing or dissolving the release layer composition of the present invention in a solvent followed by curing said composition.
    Type: Grant
    Filed: February 28, 2008
    Date of Patent: March 22, 2011
    Assignee: SiPix Chemical Inc.
    Inventors: Fei Wang, Scott C. J. Tseng, Xiaojia Wang, Kai-Chia Feng, Haiyan Gu, HongMei Zang, Rong-Chang Liang
  • ELECTROPHORETIC DISPLAY AND PROCESS FOR ITS MANUFACTURE
    Publication number: 20110000605
    Abstract: This invention relates to an electrophoretic display comprising a plurality of cells, each of said cells comprises: a) partition walls; b) an electrophoretic fluid filled therein; c) a polymeric sealing layer to enclose the electrophoretic fluid within the cell; and d) an interface between the electrophoretic fluid and the sealing layer.
    Type: Application
    Filed: April 1, 2010
    Publication date: January 6, 2011
    Inventors: Rong-Chang Liang, Mary Chan-Park, Scott C-J Tseng, Zarng-Arh George Wu, HongMei Zang
  • LATENT HARDENER FOR EPOXY COMPOSITIONS
    Publication number: 20100317545
    Abstract: Disclosed herein is a curing agent for epoxy resins that is comprised of the reaction product of an amine, an epoxy resin, and an elastomer-epoxy adduct. Additionally disclosed is a process comprising agitating a solution of an amine, an epoxy resin, and an elastomer-epoxy adduct as a dispersant at an elevated temperature in an organic medium.
    Type: Application
    Filed: July 2, 2009
    Publication date: December 16, 2010
    Inventors: John J. McNamara, Yurong Ying, Rong-Chang Liang
  • Compositions for liquid crystal display
    Patent number: 7850867
    Abstract: This invention relates to compositions and an assembly process for the manufacture of liquid crystal displays. The assembly process is especially advantageous because it can be easily scalable to roll-to-roll continuous manufacturing of liquid crystal displays. The invention is directed to a photoalignable top-sealing composition for top-sealing a liquid crystal display cell.
    Type: Grant
    Filed: July 21, 2008
    Date of Patent: December 14, 2010
    Assignee: SiPix Imaging, Inc.
    Inventors: Rong-Chang Liang, HongMei Zang, Haiyan Gu
  • METHODS AND COMPOSITIONS FOR IMPROVED ELECTROPHORETIC DISPLAY PERFORMANCE
    Publication number: 20100301280
    Abstract: The invention is directed to novel methods and compositions useful for improving the performance of electrophoretic displays. The methods comprise adding a high absorbance dye or pigment, or conductive particles, or a conductive filler in the form of nanoparticles and having a volume resistivity of less than about 104 ohm cm, or a charge transport material into an electrode protecting layer of the display.
    Type: Application
    Filed: August 16, 2010
    Publication date: December 2, 2010
    Inventors: Zarng-Arh George Wu, Xiaojia Wang, Xin Weng, Yajuan Chen, Rong-Chang Liang
  • PROCESS FOR THE MANUFACTURE OF ELECTROPHORETIC DISPLAYS
    Publication number: 20100288639
    Abstract: This invention relates to a process for the manufacture of a multi-color electrophoretic display involving adding colorant solutions or dispersions of different colors and charged pigment particles in separate steps. The process comprises a first step of pattern-wise filling colorant solutions or dispersions into microcups in predetermined areas, followed by a step of pattern-wise or non-pattern-wise adding an electrophoretic fluid comprising charged pigment particles dispersed in a dielectric solvent or solvent mixture into the microcups which are pre-filled with the colorants.
    Type: Application
    Filed: March 2, 2010
    Publication date: November 18, 2010
    Inventors: Xiaojia Wang, Rong-Chang Liang, Gary Yih-Ming Kang
  • Electrophoretic display with dual mode switching
    Patent number: 7821702
    Abstract: The present invention relates to an improved EPD which comprises both the traditional up/down switching and the in-plane switching modes. In other words, the improved EPD has dual switching modes. The monochrome EPDs of the present invention are capable of displaying highlight color of choice which is different from the text. For example, white background, blue text, and red highlight can be shown in any selected areas of the display. Furthermore, the full color EPDs of the present invention are capable of displaying high contrast images of high color saturation. Both high quality black and white states are possible in the full color displays of the present invention. The EPDs of the present invention do not need complex circuitry design, and are compatible with low cost and high yield roll-to-roll manufacturing processes.
    Type: Grant
    Filed: January 9, 2009
    Date of Patent: October 26, 2010
    Assignee: SiPix Imaging, Inc.
    Inventors: Rong-Chang Liang, Jerry Chung, David Chen
  • Methods and compositions for improved electrophoretic display performance
    Patent number: 7800813
    Abstract: The invention is directed to novel methods and compositions useful for improving the performance of electrophoretic displays. The methods comprise adding a high absorbance dye or pigment, or conductive particles, or a conductive filler in the form of nanoparticles and having a volume resistivity of less than about 104 ohm cm, or a charge transport material into an electrode protecting layer of the display.
    Type: Grant
    Filed: March 14, 2007
    Date of Patent: September 21, 2010
    Assignee: SiPix Imaging, Inc.
    Inventors: Zarng-Arh George Wu, Xiaojia Wang, Xin Weng, Yajuan Chen, Rong-Chang Liang