Patent ID: 9263508
Filing Date: 2016-02-16
CPC Classification: H01L,H05B

Claim Text:
1. A display panel, comprising: a substrate having a pixel region and a peripheral region; a control element overlying the pixel region of the substrate; a metal layer overlying the substrate in the peripheral region and in the pixel region; a first insulating layer formed on the metal layer in the peripheral region and having a plurality of openings exposing the metal layer, wherein a ratio between an area of the plurality of openings and an area of the metal layer in the peripheral region is between about 0.01 and 0.73; a lower electrode layer overlying the first insulating layer and filling into the plurality of openings of the first insulating layer to be electrically connected to the metal layer; a second insulating layer overlying the lower electrode layer; an upper electrode layer disposed on the second insulating layer; and a light emitting layer formed between the lower electrode layer and the upper electrode layer in the pixel region.