Patents by Inventor Pfefferli Beat

Pfefferli Beat 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).

  • Method for connecting a printed circuit to a liquid crystal display
    Patent number: 6770837
    Abstract: Method for connecting a printed circuit board (PCB) to the paths of the electrodes of a liquid crystal display cell (LCD) comprising, in a known manner, an upper plate, a lower plate and a sealing frame for confining said liquid crystals. The method consists of the following steps: constructing the display cell while providing at least one extension of small width of the upper plate to support the electrode paths on its lower surface; creating a connection zone by positioning said extension on contacts facing the PCB, and focussing a laser beam on the connection zone, through the upper plate or in grazing incidence with respect to the lower plate to definitively establish the connections between the paths and the contacts of the PCB.
    Type: Grant
    Filed: April 1, 2003
    Date of Patent: August 3, 2004
    Assignee: Eta Sa Manufacture Horlogère Suisse
    Inventors: Durand Friedrich, Pfefferli Beat
  • Method for connecting a printed circuit to a liquid crystal display
    Publication number: 20030197827
    Abstract: Method for connecting a printed circuit board (PCB) to the paths of the electrodes of a liquid crystal display cell (LCD) comprising, in a known manner, an upper plate, a lower plate and a sealing frame for confining said liquid crystals.
    Type: Application
    Filed: April 1, 2003
    Publication date: October 23, 2003
    Applicant: ETA SA MANUFACTURE HORLOGERE SUISSE
    Inventors: Durand Friedrich, Pfefferli Beat