Method and system for driving light emitting display
A display system includes a driver for operating a panel having a plurality of pixels arranged by a plurality of first lines and at least one second line The driver includes a driver output unit for providing to the panel a single driver output for activating the plurality of first lines, the single driver output being demultiplexed on the panel to activate each first line.
1. A drive system for an a light emitting device (LED) display panel having a multiplicity of LED pixels arranged in rows and columns, each of said LED pixels having a drive transistor that includes a gate, a source and a drain and each of said LED pixels further having an LED coupled to said drive transistor, comprising:
a gate driver having at least one address cell providing a single gate driver output for multiple rows of pixels of said LED display panel,
a gate driver multiplexer and a demultiplexer that includes multiple switch blocks coupled to the gate driver and controllably coupling said single gate driver output to said multiple rows of pixels in sequence so that whenever such that when a selected one of said multiple rows is connected to said single gate driver output, all the other said multiple rows are disconnected from said single-game single-gate driver output.
2. A display system according to claim 1 , wherein the gate driver output unit comprises:
at least one multiplexer, the multiplexer for multiplexing driver signals to provide the single gate driver output.
3. A display system according to claim 2 , wherein the panel comprises:
a demultiplexer having a plurality of switch blocks for activating the first lines multiple rows, each switch block receiving outputs from the at least one multiplexer.
4. A method of driving a display panel having a multiplicity of pixels arranged in rows and columns, each of said pixels having a drive transistor that includes a gate, a source and a drain, said method comprising:
multiplexing driver signals to generate a single gate driver signal;
providing a single gate driver signal for multiple rows of said pixels of said display panel,
demultiplexing the single gate driver signal by controllably coupling said single gate driver signal to selected ones of said multiple rows of pixels in sequence, and controllably disconnecting said gate driver signal from said multiple rows of pixels to which said single gate driver signal is not coupled.