Patent ID: 9097946
Filing Date: 2015-08-04
Classification: G02F,H01L

Abstract:
1. A display panel, comprising: a display area; a non-display area adjacent to the display area; a plurality of signal pads disposed within the non-display area; a metal signal trace disposed within the non-display area and passing through a clearance between two adjacent ones of the signal pads; a passive covering layer disposed on the display area and extending to cover the metal signal trace within the non-display area, the passive covering layer having a first thickness within the display area, the passive covering layer having a second thickness within the non-display area, wherein the first thickness is greater than the second thickness; two conductive layers formed on the passive covering layer in the non-display area and electrically connected to the two adjacent ones of the signal pads respectively, wherein a portion of the passive covering layer is exposed between the two conductive layers; and a concave structure formed on the exposed portion of the passive covering layer between the two conductive layers and at a position right above the clearance between the two adjacent ones of the signal pads, the concave structure being overlapped with the metal signal trace, and the concave structure electrically isolates the two conductive layers, wherein the concave structure forms a fourth thickness on the passive covering layer above the metal signal traces, and the fourth thickness is greater than zero but less that the second thickness.