Method and apparatus for applying adaptive precharge to an...

Details Method and apparatus for applying adaptive precharge to an... Method and apparatus for applying adaptive precharge to an...

2008-07-15

2008-07-15

Lee, Wilson (Department: 2163)

Electric lamp and discharge devices: systems

Plural power supplies

Plural cathode and/or anode load device

C345S076000

Reexamination Certificate

active

07400098

ABSTRACT:
According to the present invention, a display driver includes a voltage and current source that drive pixels and compensate for parasitic voltage to produce row pixels having intensities that are relatively uncorrelated to the number of “ON” pixels in a given row. The voltage source that provides the pre-charge for each pixel includes a constant value and a compensation voltage determined based on the number of “ON” pixels in each row. The compensation voltage is also determined based on the characteristics of the diodes associated with each pixel and the resistance associated the common ground of each row.

REFERENCES:
patent: 6229508 (2001-05-01), Kane
patent: 6594606 (2003-07-01), Everitt
patent: 6650308 (2003-11-01), Kawashima
patent: 6894436 (2005-05-01), Togashi et al.
patent: 7064733 (2006-06-01), Cok et al.

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