Monitor and its display panel

Abstract

A display panel (72) comprising a source / drain layer (11), a first insulating layer (12) formed on the source / drain layer (11), a second insulating layer (13) formed on the first insulating layer (12) and the source / drain layer (11), and a transparent electrode layer (14) formed on the second insulating layer (13). The first insulating layer (12) has a first through-hole (H1), the second insulating layer (13) has a second through-hole (H2), second through-hole (H2) is disposed in the first through-hole (H1), and part of an inner wall (131) of the second through-hole (H2) is aligned with an inner wall (121) of the first through-hole (H1). The transparent electrode layer (14) is electrically connected to source / drain layer (11) through the second through-hole (H2). The invention can increase a pixel aperture ratio while not affecting an electrical connection between electrodes.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a display and a display panel thereof. Background technique [0002] see figure 1 , figure 1 It is a structural schematic diagram of an existing display panel. In the traditional LTPS (Low Temperature Poly-silicon, low-temperature polysilicon technology) array substrate structure design, in order to conduct the upper and lower electrodes (for example, the lower electrode is the source 1 of the drain source layer, and the upper electrode is not marked, for example, the transparent electrode is the pixel electrode) , to achieve the effect of changing wires, the photomask design is often used separately between the transparent insulating layers in the middle of the two electrodes, and the insulating layers 2 and 3 above the conductive electrodes are hollowed out to leak out the lower electrode 1 and directly contact the upper electrode. , play a conduction effect. Espec...

AI Technical Summary

Problems solved by technology

When designing multi-layer via holes, the small hole S2 is usually placed in the center of the large hole S1, which wastes the pixel space structure. In this case, when the contact area of ​​the upper and lower electrodes (that is, the area of ​​the small hole S1) is the same, The area of ​​the large hole S2 needs to be set larger, and the line width of the lower electrode must be set slightly larger than the area of ​​the hole, so that the line width of the lower electrode will increase accordingly, which will lose the aperture ratio of the pixel

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