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:
Aug. 21, 2001
Filed:
Mar. 20, 2000
Ronald S. Cok, Rochester, NY (US);
Paul P. Lee, Pittsford, NY (US);
Eastman Kodak Company, Rochester, NY (US);
Abstract
A display device, including: a light controlling element; a drive circuit connected to the light controlling element, the drive circuit including a transistor having a gate for controlling the power applied to the light controlling element; a storage capacitor connected to the gate of the drive circuit transistor; a control circuit for depositing charge on the storage capacitor; a refresh circuit connected to the control circuit and responsive to an external signal for causing the control circuit to deposit charge on the storage capacitor; and a feedback mechanism including element for measuring a change in a performance characteristic of the display device and for signaling the refresh circuit in response to the measured characteristic, whereby the display is refreshed on demand as opposed to periodically.