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:
Dec. 28, 2004
Filed:
Dec. 12, 2001
Masafumi Nakamura, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
An organic EL display driving system and a mobile communication terminal used this system, in which the power consumption of the organic EL display is reduced without damaging the visuality of the displaying contents on the organic EL display, are provided. The organic EL display driving system provides a measuring means that measures the amount of incident light to an organic EL display, which emits light spontaneously, from the outside, and a power supply voltage controlling means that controls the power supply voltage for the organic EL display so that the power supply voltage is increased when the amount of the incident light is large, and the power supply voltage is decreased when the amount of the incident light is small.