Display Substrate Layout With Bent Signal Lines to Reduce Moiré
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Solution Overview
Problem
Current 3D display technologies face challenges in reducing moire patterns and improving display efficiency, especially for large-size products, due to high coupling capacitance and manufacturing costs associated with organic film processes, which limit the applicability and productivity of glasses-free 3D displays.
Innovation Solution
The design of a display substrate with bent signal lines and common electrode strips arranged in blocks, reducing vertical overlap and coupling capacitance without the need for organic films, along with the use of shade strips and pixel electrodes with slanted dark spots to minimize light leakage and enhance aperture ratio.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If thick organic films are used to reduce coupling capacitance between common electrode strips and signal lines, then coupling capacitance is reduced, but manufacturing cost increases and large-size display production is limited
Solution Approach 1:
The common electrode strip is segmented into multiple common electrode blocks with slits between them. This segmentation reduces the overlapping area with signal lines, thereby reducing coupling capacitance without requiring thick organic films, enabling cost-effective large-size display production
Solution Approach 2:
The signal line is designed with a bent shape instead of a straight line, changing its spatial arrangement to reduce vertical overlap with common electrode strips. This dimensional rearrangement reduces coupling capacitance while maintaining electrical functionality and enabling standard manufacturing processes
2Reliability
If common electrode strips are designed to reduce coupling capacitance, then coupling capacitance is reduced, but aperture ratio and light efficiency decrease
Solution Approach 1:
Slits are selectively positioned in the common electrode strip at locations where signal lines bend and overlap occurs. This localized modification reduces coupling capacitance only where needed, while maintaining the integrity and light-transmitting properties of the majority of the common electrode structure
Solution Approach 2:
The signal line is designed with a bent shape that follows the contour of the common electrode blocks, allowing it to navigate around the slits while maintaining optimal electrical connection and minimizing impact on aperture ratio and light efficiency
Data Source
AI summary
A display substrate, a display panel and a display apparatus are provided. The display substrate includes: a base substrate; signal lines disposed at a side of the base substrate and arranged in a first direction, and an orthographic projection of each signal line on the base substrate is in a shape of a bent line; and a plurality of common electrode strips, where the plurality of common electrode strips and the signal lines are disposed at the same side of the base substrate and are insulated from each other. Each common electrode strip includes a plurality of common electrode blocks arranged in sequence in the first direction, a first slit is provided between adjacent common electrode blocks, and orthographic projections of at least part of the signal lines on the base substrate are located within orthographic projections of the first slits on the base substrate.