A mono color organic light emitting diode matrix display was reported

which has been developed based on a long life green OLED cell with 96×60 pixels

an equivalent pixel size of 0.4×0.4mm

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and a designed driving circuit.A good green color image could be obtained

neither non-uniformity caused by the parasitic capacitance nor cross talk between pixels occurred.The peak luminance at the duty cycle 1/64 was 100cd/m

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and power consumption was 0.6W. The display panel consists of a glass substrate on which ITO anodes are formed in vertical stripes with a width of 0.4mm and a gap of 0.1mm by photolithography

then the buffer layer

hole transporting layer

electron transporting layers were successively deposited

Mg:Ag as a cathode was evaporated and formed in horizontal stripes with a width of 0.4mm and a gap of 0.1mm by a shadow-mask.Then the panel was encapsulated and the electrodes of the display were connected with the driving circuit. For the driving circuit

a line successive scanning and a constant current driving were adopted.It was designed to eliminate the cross-talk between the pixels

a good green color image was realized.