Patents by Inventor Paul F. Guehler

Paul F. Guehler 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).

  • Active substrates for color displays
    Publication number: 20010010884
    Abstract: An improved electronic display that includes components selected to enhance display performance. The improved display includes an active substrate that has a plurality of thin film transistors and a plurality of thermally transferred color filters that include a colorant in a crosslinked binder. The active substrate can also include a black matrix. Other components in the improved display such as a liquid crystal material, spacers, and bottom polarizer, can be selected to enhance display performance characteristics such as brightness, power consumption, response time, weight, and thickness. The invention also provides a method of forming a color filter substrate for displays including the steps of thermally mass transferring a plurality of color filters and crosslinking the plurality of color filters after transfer. Before the crosslinking step, the plurality of color filters can be inspected and removed for reworking of the substrate.
    Type: Application
    Filed: January 29, 2001
    Publication date: August 2, 2001
    Applicant: 3M Innovative Properties Company
    Inventors: Paul F. Guehler, Thomas A. Isberg, Kazuhiko Mizuno, Kazuki Noda, Raghunath Padiyath, Richard J. Pokorny, John S. Staral, Jeffrey C. Chang
  • Process for making active substrates for color displays
    Patent number: 6221543
    Abstract: An improved electronic display that includes components selected to enhance display performance. The improved display includes an active substrate that has a plurality of thin film transistors and a plurality of thermally transferred color filters that include a colorant in a crosslinked binder. The active substrate can also include a black matrix. Other components in the improved display such as a liquid crystal material, spacers, and bottom polarizer, can be selected to enhance display performance characteristics such as brightness, power consumption, response time, weight, and thickness. The invention also provides a method of forming a color filter substrate for displays including the steps of thermally mass transferring a plurality of color filters and crosslinking the plurality of color filters after transfer. Before the crosslinking step, the plurality of color filters can be inspected and removed for reworking of the substrate.
    Type: Grant
    Filed: May 14, 1999
    Date of Patent: April 24, 2001
    Assignee: 3M Innovatives Properties
    Inventors: Paul F. Guehler, Thomas A. Isberg, Kazuhiko Mizuno, Kazuki Noda, Raghunath Padiyath, Richard J. Pokorny, John S. Staral, Jeffrey C. Chang
  • Absorptive devices
    Patent number: 4609584
    Abstract: A microporous liquid impermeable but vapor permeable sheet material useful as a backsheet for disposable absorptive devices such as disposable diapers, incontinent devices, sanitary napkins, and panty liners is disclosed. This backsheet provides unexpected useful attributes such as compatibility with available closure tapes and embossibility with translucent patterns.
    Type: Grant
    Filed: September 19, 1985
    Date of Patent: September 2, 1986
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Larry P. Cutler, Paul F. Guehler, Thomas I. Insley