Patents Assigned to SiPix Imaging, Inc.
  • Electrophoretic display and methods of addressing such display
    Patent number: 7408699
    Abstract: The present invention relates to electrophoretic displays and methods of addressing such displays. The displays and methods are especially suitable for large size electronic boards or signs.
    Type: Grant
    Filed: September 26, 2006
    Date of Patent: August 5, 2008
    Assignee: Sipix Imaging, Inc.
    Inventors: Xiaojia Wang, David Morris, Fei Wang, Andrew Ho
  • In mold manufacture of an object with embedded display panel
    Patent number: 7401758
    Abstract: This invention relates to an object having a display panel embedded in its top surface and processes for its manufacture. This invention also relates to an in-mold display transfer film or foil, which comprises a temporary carrier film, a release layer, a display panel, an adhesive or tie layer and optionally a durable layer.
    Type: Grant
    Filed: June 3, 2004
    Date of Patent: July 22, 2008
    Assignee: SiPix Imaging, Inc.
    Inventors: Rong-Chang Liang, Scott C. J. Tseng, Jerry Chung, HongMei Zang, Xiaojia Wang, Yi-Shung Chaug, Feng Y. Dai
  • Fluorinated dyes or colorants and their uses
    Patent number: 7390901
    Abstract: This 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.
    Type: Grant
    Filed: July 29, 2004
    Date of Patent: June 24, 2008
    Assignee: SiPix Imaging, Inc.
    Inventors: Jin Yang, Kai-Chia Feng, Ying-Syi Li, HongMei Zang, Hong Wang, Chien-Hung Chou, Rong-Chang Liang
  • Process for imagewise opening and filling color display components and color displays manufactured thereof
    Patent number: 7385751
    Abstract: This invention relates to the field of electrophoretic displays. In particular, it relates to imagewise opening, filling and sealing multicolor display components and the manufacture of multicolor displays.
    Type: Grant
    Filed: December 2, 2005
    Date of Patent: June 10, 2008
    Assignee: SiPix Imaging, Inc.
    Inventors: Xianhai Chen, HongMei Zang, Zarng-Arh George Wu, Rong-Chang Liang
  • Core-shell particles for electrophoretic display
    Patent number: 7382514
    Abstract: The invention relates to electrophoretic displays comprising core-shell pigment particles having a core of low specific gravity and low refractive index and a shell of high refractive index.
    Type: Grant
    Filed: November 28, 2005
    Date of Patent: June 3, 2008
    Assignee: Sipix Imaging, Inc.
    Inventors: Wan Peter Hsu, Huiyong Paul Chen, Denis Leroux, Zarng-Arh George Wu, Rong-Chang Liang
  • Process for the manufacture of electrophoretic displays
    Patent number: 7374634
    Abstract: This invention relates to processes for the manufacture of electrophoretic displays.
    Type: Grant
    Filed: May 9, 2005
    Date of Patent: May 20, 2008
    Assignee: SiPix Imaging, Inc.
    Inventors: Xiaojia Wang, Rong-Chang Liang, Gary Kang
  • Methods and compositions for improved electrophoretic display performance
    Patent number: 7347957
    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: February 23, 2004
    Date of Patent: March 25, 2008
    Assignee: SiPix Imaging, Inc.
    Inventors: Zarng-Arh George Wu, Xiaojia Wang, Xin Weng, Yajuan Chen, Rong-Chang Liang
  • Electrode and connecting designs for roll-to-roll format flexible display manufacturing
    Patent number: 7327346
    Abstract: The present invention generally is directed to electrode designs suitable for roll-to-roll format flexible manufacturing of an EPD. It is also directed to an EPD having a segment design in a repeated pattern across an entire roll of the display. The EPD preferably is microcup-based. The EPD manufactured according to the present invention has the appearance of a roll of wall paper and it can be cut into any desired sizes or formats. The EPD has electrode or trace lines which may be exposed by asymmetrical cutting and stripping without the need of precision registration.
    Type: Grant
    Filed: May 28, 2003
    Date of Patent: February 5, 2008
    Assignee: SiPix Imaging, Inc.
    Inventors: Jerry Chung, Jack Hou, Rong-Chang Liang
  • Compositions and processes for format-flexible, roll-to-roll manufacturing of electrophoretic displays
    Patent number: 7307778
    Abstract: The invention is directed to compositions and processes useful for the roll-to-roll manufacturing of electrophoretic displays.
    Type: Grant
    Filed: February 8, 2005
    Date of Patent: December 11, 2007
    Assignee: SiPix Imaging, Inc.
    Inventors: Xiaojia Wang, Chia-Pu Chang, Sean Kiluk, Zarng-Arh George Wu, Rong-Chang Liang
  • Backplane design for display panels and processes for their manufacture
    Patent number: 7304780
    Abstract: The present invention relates to a backplane design for display panels and processes for their manufacture. The invention provides cost-effective ways to manufacture a display panel because the manufacture does not involve the use of a patterned ITO substrate, flexible printed circuit board or rigid circuit board. In addition, a roll-to-roll process can be employed to manufacture the display panel.
    Type: Grant
    Filed: November 15, 2005
    Date of Patent: December 4, 2007
    Assignee: SiPix Imaging, Inc.
    Inventors: John Hanan Liu, Gary Y. M. Kang, Yi-Shung Chaug
  • Direct drive display with a multi-layer backplane and process for its manufacture
    Patent number: 7301693
    Abstract: The present invention relates to a direct drive display having a multi-layer backplane and a process for manufacturing such a display.
    Type: Grant
    Filed: August 1, 2005
    Date of Patent: November 27, 2007
    Assignee: SiPix Imaging, Inc.
    Inventors: Yi-Shung Chaug, Jack Hou, Mike Sereda
  • Microencapsulation processes and compositions for electrophoretic displays
    Patent number: 7286279
    Abstract: The present invention is directed to a method for improving the performance of an electrophoretic display, which method comprises adding a fluorinated quaternary nitrogen salt in either the internal phase or the continuous phase in a microencapsulation process for the formation of pigment-containing microparticles. One or more of the following materials may be further added to the internal phase or continuous phase in the microencapsulation process: a fluorinated protective colloid, a second charge controlling agent or a second monomer or oligomer.
    Type: Grant
    Filed: July 30, 2003
    Date of Patent: October 23, 2007
    Assignee: SiPix Imaging, Inc.
    Inventors: Wenxin Yu, Jing-Den Chen, Chih-Yuan Liao, Haiyan Gu, HongMei Zang, Rong-Chang Liang
  • Electrophoretic compositions
    Patent number: 7277218
    Abstract: This invention relates to a novel electrophoretic composition having improved colloidal stability, switching performance and temperature latitude.
    Type: Grant
    Filed: October 27, 2004
    Date of Patent: October 2, 2007
    Assignee: SiPix Imaging, Inc.
    Inventors: Jiunn Jye Hwang, HongMei Zang, Yajuan Chen, Xin Weng, Jack Hou, Rong-Chang Liang
  • Electrophoretic display with dual-mode switching
    Patent number: 7271947
    Abstract: The present invention relates to an improved EPD which comprises both the traditional up/down switching and the in-plane switching modes. The monochrome EPDs of the present invention are capable of displaying highlight color of choice which is different from the text. 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: February 14, 2003
    Date of Patent: September 18, 2007
    Assignee: SiPix Imaging, Inc.
    Inventors: Rong-Chang Liang, Jerry Chung
  • Process for forming a patterned thin film structure on a substrate
    Patent number: 7261920
    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: September 19, 2003
    Date of Patent: August 28, 2007
    Assignee: SiPix Imaging, Inc.
    Inventors: Jeanne E. Haubrich, Yi-Shung Chaug, Zarng-Arh George Wu, Rong-Chang Liang
  • Electrochromic or electrodeposition display and novel process for their manufacture
    Patent number: 7245414
    Abstract: The present invention is directed to an improved electrodeposition and an electrochromic display. The display cells formed from microcups are filled with an electrolyte fluid and are individually sealed with a polymeric sealing layer.
    Type: Grant
    Filed: September 10, 2003
    Date of Patent: July 17, 2007
    Assignee: SiPix Imaging, Inc.
    Inventors: Rong-Chang Liang, Jack Hou, Sundaravel P. Ananthavel
  • Electrophoretic display with thermal control
    Patent number: 7242514
    Abstract: An electrophoretic display (EPD) with thermal control is disclosed for controlling and maintaining an image in extreme temperature environments. Techniques are also disclosed for maintaining the EPD cell threshold voltage for EPD cells comprising an EPD display media at or above a desired level in an environment in which the EPD may be subjected to an extreme temperature. The techniques comprise sensing a sensed temperature associated with the EPD display media, determining whether the sensed temperature satisfies a criterion established to ensure that the display media temperature remains at a level associated with an acceptable EPD cell threshold voltage, and in the event it is determined that the sensed temperature does not satisfy the criterion, controlling the EPD display media temperature as required to bring the sensed temperature to a level that satisfies the criterion.
    Type: Grant
    Filed: April 27, 2006
    Date of Patent: July 10, 2007
    Assignee: SiPix Imaging, Inc.
    Inventors: Jerry Chung, Rong-Chang Liang
  • Electrophoretic display
    Patent number: 7233429
    Abstract: This invention relates to an electrophoretic display comprising cells of well-defined shape, size and aspect ratio which cells are filled with charged pigment particles dispersed in a solvent, and novel processes for its manufacture.
    Type: Grant
    Filed: January 7, 2005
    Date of Patent: June 19, 2007
    Assignee: SiPix Imaging, Inc.
    Inventors: Rong-Chang Liang, Scott C-J Tseng, Zarng-Arh George Wu, HongMei Zang
  • Electrophoretic dispersions
    Patent number: 7226550
    Abstract: This invention relates to electrophoretic displays having improved performance. The threshold promoter of the present invention may induce or significantly enhance the threshold effect by improving the particle-particle interaction and/or the particle-electrode interaction. The promoter may be present in the system as a soluble or micelle molecule in the electrophoretic fluid or an adsorbed or chemically bonded molecule on the surface of particles. The use of such a threshold promoter does not show a detrimental effect on the display switching rate.
    Type: Grant
    Filed: October 9, 2003
    Date of Patent: June 5, 2007
    Assignee: SiPix Imaging, Inc.
    Inventors: Jack Hou, HongMei Zang, Yajuan Chen, Jing-Den Chen, Chih-Yuan Liao, Rong-Chang Liang
  • Composition and process for the manufacture of an improved electrophoretic display
    Patent number: 7205355
    Abstract: The invention relates to a display having improved contrast ratio, switching performance, reflectivity at the Dmin state and structural integrity and methods for its manufacture.
    Type: Grant
    Filed: December 4, 2002
    Date of Patent: April 17, 2007
    Assignee: SiPix Imaging, Inc.
    Inventors: Rong-Chang Liang, HongMei Zang, Xiaojia Wang