Notched Display Substrate with Compensation Scanning Member
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The presence of a notch in display products leads to uneven loading of signal lines, affecting display quality due to differences in signal lines at the left and right sides of the notch and the display region.
Innovation Solution
A display substrate design that includes a compensation scanning member in the notch, coupled to scanning members in adjacent display regions, with orthogonal projections overlapping peripheral power lines to ensure uniform loading and stability, and a dam structure to prevent encapsulation layer cracking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a notch is provided in the display product to arrange camera and other elements, then the display product can achieve functional integration and aesthetic design, but the signal lines at left and right sides of the notch have uneven loading which adversely affects display quality
Solution Approach 1:
The gate driving circuit is divided into two separate circuits: a first gate driving circuit arranged in the peripheral region and a second gate driving circuit arranged in the notch region. This segmentation allows independent optimization of signal line loading in each region, ensuring uniform loading characteristics while maintaining the notch structure for camera integration.
Solution Approach 2:
A compensation scanning member is introduced as an intermediary element to balance the loading between signal lines passing through the notch region and those in the display region. The compensation scanning member includes a first scanning member coupled to the first gate driving circuit and a second scanning member coupled to the second gate driving circuit, with their orthogonal projections overlapping with the peripheral power line to ensure uniform loading.
2Manufacturing precision
If the orthogonal projection of the compensation scanning member overlaps with the peripheral power line, then uniform loading is ensured, but the structural complexity increases
Solution Approach 1:
The compensation scanning member serves multiple functions: it acts as both a scanning signal transmission path and a loading compensation element. By making the orthogonal projections of the first and second scanning members overlap with the peripheral power line, the structure achieves loading uniformity while utilizing existing spatial relationships in the display substrate.
Solution Approach 2:
The solution addresses the loading uniformity problem by transitioning from a two-dimensional planar arrangement to a three-dimensional overlapping configuration. The orthogonal projections of the scanning members overlap with the power line in the vertical dimension, allowing loading compensation without increasing horizontal footprint or bezel width.
3Adaptability or versatility
If the display region is divided into first and second display regions arranged opposite to each other with the notch between them, then the notch can be utilized for camera arrangement, but the signal line loading becomes uneven
Solution Approach 1:
The display region is segmented into a first display region and a second display region arranged opposite to each other with the notch between them. Correspondingly, the gate driving circuit is segmented into two independent circuits, each serving one display region, allowing independent optimization of signal line characteristics in each segment to ensure loading consistency.
Solution Approach 2:
Different gate driving circuits are designed for different regions: the first gate driving circuit serves the first display region while the second gate driving circuit serves the second display region. This local optimization ensures that each region receives appropriately balanced signal line loading tailored to its specific geometric characteristics and distance from the notch.
Data Source
AI summary
The present disclosure provides a display substrate and a display device. A display region of the display substrate includes a first display region and a second display region arranged opposite to each other, a peripheral region includes a notch arranged between the first display region and the second display region. A scanning line in the display substrate includes a first scanning member, a second scanning member and a compensation scanning member, the first scanning member is arranged in the first display region, the second scanning member is arranged in the second display region, and at least a part of the compensation scanning member is arranged in the notch. The compensation scanning member is coupled to the first scanning member and the second scanning member. An orthogonal projection of the compensation scanning member onto the base substrate overlaps with an orthogonal projection of a peripheral power line onto the base substrate.