Invention Grant
US08368671B2 Display device driving circuit with independently adjustable power supply voltage for buffers 有权
显示设备驱动电路,具有独立可调电源电压的缓冲器

Display device driving circuit with independently adjustable power supply voltage for buffers
Abstract:
A driving circuit for a display with display elements in rows and/or columns has a shift register, through which tokens are shifted. The shift register's parallel outputs are latched and enable switch cells depending on the tokens. Control signals are supplied to the switch cells which control the output signal in terms of pulse width and/or signal shape. Buffers output the signals to a connected display. Individual or groups of buffers are connected to different supply voltages. The shift register may have more than one input in order to allow for shifting tokens in parallel, e.g. to every second output, using only one clock cycle. Further, inputs are provided for inverting the travelling direction of the tokens, inverting the shape of the signal that is output or switching all outputs to a predetermined state.
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