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. 16, 2009
Filed:
Apr. 13, 2006
Philippe Le Roy, Betton, FR;
Christophe Prat, Nantes, FR;
Pierrick Martin, Rennes, FR;
Thomson Licensing, Boulogne-Billancourt, FR;
Abstract
The display comprises an array of pixel circuits each comprising an emitterin series with a current modulation transistor, and at least one address circuit, which integrates, for each column, a differential amplifier and a passive element preferably a resistive element, which cooperate with the current modulation transistors so as to form, during address phases in which the emitters are switched 'out of the circuit', a voltage-programmable current generator. After the address phases, thanks to a suitable switch, the emitters are switched 'into the circuit' and supplied with the preprogrammed current. Such a display allows the image display quality to be inexpensively improved.