Display Panel Line Layout for Notch Region Crosstalk Reduction
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Solution Overview
Problem
The presence of a notch region in display panels for accommodating front cameras and receivers leads to coupling between scanning lines and data lines, causing signal interference and affecting the display effect.
Innovation Solution
A display panel design with a base substrate featuring a notch region, a display region, and a non-display region, where the scanning lines and data lines are arranged to minimize overlap and interference, using multiple conductive layers and insulating layers with specific via holes and connection portions to reduce signal coupling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If scanning lines and data lines are placed perpendicular to each other in different layers, then insulation between lines is improved and crosstalk is reduced, but device structure becomes more complex
Solution Approach 1:
The patent applies dimensional separation by placing scanning lines and data lines in different layers (vertical stacking) rather than only horizontal arrangement. Specifically, the first scanning lines are in the third conductive layer while data lines are in the first conductive layer, with insulating layers separating them. This multi-layer approach reduces in-plane coupling while managing inter-layer coupling through controlled via hole designs and insulating structures.
Solution Approach 2:
The patent introduces intermediary insulating structures to mediate between conductive elements. The interlayer insulating layer with via holes, and the second insulating layer serve as intermediaries that electrically isolate scanning lines from data lines while allowing controlled connections. These insulating layers act as mediators that prevent direct coupling between perpendicular conductive lines.
2Adaptability or versatility
If data lines are extended into non-display region for connection, then routing flexibility is improved, but coupling with scanning lines increases
Solution Approach 1:
The patent uses vertical layering to extend data line connections into the non-display region while maintaining isolation. Data lines in the first conductive layer can extend horizontally into non-display regions, and connections are made vertically through via holes to the second conductive layer, avoiding horizontal overlap with scanning lines in the third layer even in non-display regions.
Solution Approach 2:
The patent segments the data transmission path into multiple conductive layer portions connected by via holes. Data lines are divided into segments across different layers (first conductive layer, second conductive layer) with insulating barriers between them, allowing flexible routing while maintaining electrical isolation between scanning and data line systems.
3Adaptability or versatility
If multiple conductive layers with via holes are used to connect lines, then signal transmission flexibility is improved, but manufacturing precision requirements increase
Solution Approach 1:
The patent employs preliminary patterning and insulation layer formation to pre-establish alignment references before creating via holes. The insulating layers are formed with predetermined patterns that guide subsequent via hole placement, ensuring proper alignment between conductive elements across layers without requiring ultra-precise direct alignment of via holes themselves.
Data Source
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AI summary
A display panel and a display device. The display panel comprises: a base substrate (010), a third conductive layer (300), second insulating layers (620, 630), a first conductive layer (100). an interlayer insulating layer (640), and a second conductive layer (200). At least one of a plurality of first data connection portions (211) is respectively electrically connected to at least one of a plurality of data lines (VD) and at least one of a plurality of first data transmission lines (711) by means of a first data via hole (641-1); at least one row of sub-pixels in rows of first-type sub-pixels corresponds to at least one first data connection portion (211); for a first scanning line (GA1) and the first data connection portion (211) corresponding to the same row of sub-pixels, and the first data line (121) and the first data transmission line (711) electrically connected by means of the first data connection portion (211), the orthographic projection of the first data connection portion (211) on the base substrate (010) and the orthographic projection of the first scanning line (GA1) on the base substrate (010) have an overlapping area, and the orthographic projection of the first data line (121) and the first data transmission line (711) on the base substrate (010) is not overlapped with the orthographic projection of the first scanning line (GA1) on the base substrate (010).