Patents by Inventor Ruan Shiping

Ruan Shiping 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).

  • Electronic fluorescent display system
    Patent number: 5621284
    Abstract: A cathodoluminescent device employs elongated grid electrodes such as small gauge wires for addressing and controlling the brightness of the display, thereby increasing the osmotic coefficient of the grid electrodes. End portions of the cathode filaments are bent into springs to reduce cold terminal effects. The edges of the face plate of the device are curved to reduce the visual effects of mosaic slots. The display may be operated at low anode voltage with increased luminescence so that full screen scanning is possible. Different sections of narrow strips forming a staggered structure strengthens the integrity of the device and reduces dark areas in the display.
    Type: Grant
    Filed: March 10, 1995
    Date of Patent: April 15, 1997
    Assignees: Pixtech, Inc., Hangzhou University
    Inventors: Ge Shichao, Victor Lam, Huang Xi, Jin Weicheng, Ruan Shiping
  • Electronic fluorescent display system
    Patent number: 5170100
    Abstract: A cathodoluminescent device employs elongated grid electrodes such as small gauge wires for addressing and controlling the brightness of the display, thereby increasing the osmotic coefficient of the grid electrodes. End portions of the cathode filaments are bent into springs to reduced cold terminal effects. The edges of the face plate of the device are curved to reduced the visual effects of mosaic slots. The display may be operated at low anode voltage with increased luminescence so that full screen scanning is possible. Different sections of narrow strips forming a staggered structure strengthens the integrity of the device and reduces dark areas in the display.
    Type: Grant
    Filed: February 25, 1991
    Date of Patent: December 8, 1992
    Assignees: Hangzhou University, Panocorp Display Systems
    Inventors: Ge Shichao, Victor Lam, Huang Xi, Jin Weicheng, Ruan Shiping
  • High luminance color picture element tubes
    Patent number: 4737683
    Abstract: The present invention relates to high luminant fluorescent color picture element tubes and display units of the same for large area or giant area display. A fluorescent picture element tube comprises a cathode, a control electrode, an anode, and a light output window. Several such color tubes may be arranged in line or matrix to construct a color picture element tube display unit representing one or more picture elements. The light emitted by the phosphor coated on the large area of the anode passes through the relatively small area of the light output window. A high luminance efficiency may also be obtained as the good heat dissipation of the anode. So higher light output can be obtained and the anode voltage can be reduced.The cost of large area or giant area display system using the tubes and units which have simple construction and lower drive voltage is greatly reduced. The display of monochrome, polychrome, color, and changeable color is also achievable.
    Type: Grant
    Filed: March 27, 1986
    Date of Patent: April 12, 1988
    Assignees: Hangzhon University, Shenzhen Electronic Display Devices, Ltd.
    Inventors: Ge Shichao, Huang Xi, Ruan Shiping