Method and apparatus for pre-charging electro-luminescence...

Details Method and apparatus for pre-charging electro-luminescence... Method and apparatus for pre-charging electro-luminescence...

2004-12-28

2009-02-17

Hjerpe, Richard (Department: 2629)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

C345S092000, C315S169300

Reexamination Certificate

active

07492336

ABSTRACT:
An electro-luminescence (EL) display device includes an electro-luminescence display panel including a plurality of pixels arranged in a matrix form at pixel areas defined by intersections between gate lines and data lines, each of the pixels having an EL cell connected to a first voltage source and a cell driver, the cell driver connected to a respective one of the gate lines and a respective one of the data lines and connected between a second voltage source and the EL cell, and a pre-charger for pre-charging a storage capacitor in the cell driver into a first pre-charge voltage using a pre-charge voltage source and then floating the respective data line in a pre-charge period prior to an application of a data signal, thereby arriving at a second pre-charge voltage by a discharge of the first pre-charge voltage of the storage capacitor.

REFERENCES:
patent: 5708454 (1998-01-01), Katoh et al.
patent: 6731266 (2004-05-01), Jung
patent: 7106281 (2006-09-01), Kim et al.
patent: 2002/0167505 (2002-11-01), LeChevalier
patent: 2006/0125744 (2006-06-01), Klein et al.

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