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:
Nov. 17, 2009
Filed:
Oct. 10, 2006
Francesco Pulvirenti, Acireale, IT;
Gregorio Bontempo, Barcellona Pozzo di Gotto, IT;
Murakata Masaki, Yamagata, JP;
Hayafuji Akinori, Yamagata, JP;
Francesco Pulvirenti, Acireale, IT;
Gregorio Bontempo, Barcellona Pozzo di Gotto, IT;
Murakata Masaki, Yamagata, JP;
Hayafuji Akinori, Yamagata, JP;
STMicroelectronics S.r.l., Agrate Brianza, IT;
Abstract
An OLED (organic light-emitting diode) passive-matrix display includes a display portion and a driver portion. The display portion includes a matrix of OLEDs for displaying information. The driver portion includes a monitor circuit and a voltage adjusting circuit. The voltage adjusting circuit has a power-up portion that generates a supply voltage based on a reference voltage. In response to an indication to switch modes, the voltage adjusting circuit switches to an operational mode wherein the supply voltage is generated based on the maximum voltage drop read across the OLEDs.