This work analyzes how the transient response depends on display resolution, display geometry, pixel position, and row and column electrode design. We conclude that advanced display designs can achieve uniform images at high resolution and contrast. Fig. 2 compares the transient response as pixel resolution increases along one row. The approach used is to insert the electrical data for a LED from Fig. 1 into the PSpice circuit simulation tool. The display contains pixels with the circuit shown in the inset to Fig.
Column resistance limits performance.
The inset shows the equivalent circuit of each pixel. The simplified circuit diagram above for a 100 pixel row emphasizes how resistance in the row electrode can influence the transient response of pixels along one row. 2 compares the transient response of one row to a 5V pulse as pixel resolution increases. Given a metallic cathode with sufficiently low resistance, 0.1 m W per pixel in this case, additional columns have little influence on the transient response. The simplified circuit diagram above for a 100 pixel column emphasizes how resistance in the column electrode can influence the transient response of pixels along one column.