The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 13, 2006
Filed:
Oct. 25, 1999
Janez Pir{hacek Over (S)}, 1000 Ljubljana, SI;
Bojan Marin, 1000 Ljubljana, SI;
Sivija Pir{hacek Over (S)}, 1000 Ljubljana, SI;
Du{hacek Over (S)}an Ponikvar, 1117 Ljubljana, SI;
Janez Pir{hacek over (s)}, 1000 Ljubljana, SI;
Bojan Marin, 1000 Ljubljana, SI;
Sivija Pir{hacek over (s)}, 1000 Ljubljana, SI;
Du{hacek over (s)}an Ponikvar, 1117 Ljubljana, SI;
Other;
Abstract
The invention relates to the problem of the driving of the LCD electrooptic-switching element () with alternating, square-wave electric signals, the amplitude of witch can vary between different voltage levels in correspondence with the actual functioning state of the LCD electrooptic-switching element. The polarity changes of the electric driving signals is controlled by the integrator (), integrating the difference of the electric potentials on the driving electrodes () of the LCD electrooptic-switching element, in such a way that the value of time integral of the driving electric field is always kept within a selected interval. Besides this the time dependence of the electric driving signals can be optionally modified so that with every change of the polarity of the electric driving signals, the potentials on both driving electrodes get the same value for a time, which is significantly shorter than the switching time of the LCD electrooptic switching element.