Patent ID: 8716927

Claim:
A display panel, comprising: a substrate having a pixel region and a peripheral region; an upper electrode layer formed on the pixel region and the peripheral region of the substrate; a control element overlying the pixel region of the substrate and between the substrate and the upper electrode layer, wherein the control element comprises an active layer; a conducting layer overlying the active layer in the pixel region and the substrate in the peripheral region and between the substrate and the upper electrode layer; a light emitting layer formed between the conducting layer and the upper electrode layer in the pixel region; and a first insulating layer formed between the conducting layer and the light emitting layer in the pixel region and between the conducting layer and the upper electrode layer in the peripheral region, wherein a ratio between an area of the first insulating layer and an area of the conducting layer in the peripheral region is between about 0.27 and 0.99 a lower electrode layer overlying the first insulating layer; and a second insulating layer overlying the lower electrode layer.