Method and apparatus for applying adaptive precharge to an electroluminescence display

Method and apparatus for applying adaptive precharge to an electroluminescence display

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 p...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: LAI STEPHEN W, RICKY NG CHUNG Y, FELIX WONG WAI Y, LEE CHEUNG F
Format: Patent
Sprache:eng
Schlagworte:
ADVERTISING
ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION
CRYPTOGRAPHY
DISPLAY
EDUCATION
PHYSICS
SEALS
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Beschreibung
Zusammenfassung: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.