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METHOD AND DRIVER FOR ACTUATING A PASSIVE-MATRIX OLED DISPLAY
METHOD AND DRIVER FOR ACTUATING A PASSIVE-MATRIX OLED DISPLAY
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机译：用于驱动无源矩阵OLED显示器的方法和驱动器
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摘要
The document describes a method and an apparatus for actuating a passive-matrix OLED display (1) with OLEDs (2) arranged in matrix form, wherein the columns are connected to a current source (3) for the purpose of actuating an OLED (2) and the rows are repetitively connected in succession for the duration of the row addressing time (tROw). The brightness (L) of a pixel situated at the point of intersection between a column and an addressed row is influenced by the connection time (tINJ), which is within the row addressing time (tROw), and the amplitude of the column current (lINj). To achieve energy-efficient actuation, it is proposed that the brightness (L) of the pixel be controlled on the basis of a charge quantity (QLUM_INJ) which is converted into light during the connection time (tINJ) of the column current (IINJ) and on the basis of a charge quantity (QLum_z) which is supplied from the capacitance (CP) of the OLEDs (2) and converted into light during a persistence time (tz) by virtue of the column being switched to zero potential during the persistence time (tz) and the charge quantity (QCAP) stored in the capacitance of the OLEDs (2) prior to the addressing being taken into account when determining the charge quantity (QLUM) converted on the OLED (2).
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