Pixel driving circuit and pixel driving method

Details Pixel driving circuit and pixel driving method Pixel driving circuit and pixel driving method

2005-04-18

2008-07-29

Awad, Amr (Department: 2629)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

C345S204000, C315S169300

Reexamination Certificate

active

07405714

ABSTRACT:
A pixel driving circuit for use in an Active Matrix Organic Light Emission Display (AMOLED). A pixel driving method for use in the AMOLED. The pixel driving circuit comprises a current source, a driving pump, and a discharge circuit. A fixed current is provided by the current source. The driving pump coupled to the current source and a Light Emitting Diode (LED), charges a cell to saturation by the fixed current, such that the potential of the cell drives the LED lighting. The discharge circuit, coupled to the driving pump and a data line, controls the cell discharge based on a data signal on the data line. The discharge circuit controls the cell discharge speed, whereby the LED lighting time and luminance is adjusted.

REFERENCES:
patent: 6873116 (2005-03-01), Kimura et al.
patent: 7173585 (2007-02-01), Weng
patent: 7193588 (2007-03-01), Lo
patent: 1532788 (2004-09-01), None
patent: 1540615 (2004-10-01), None
CN Office Action mailed Mar. 2, 2007.

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