Display Substrate Power Routing for Narrow-Bezel Peripheral Layout
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Solution Overview
Problem
Existing display substrates face challenges in reducing the occupation space of the peripheral area, which affects the screen-to-body ratio and display effectiveness.
Innovation Solution
The display substrate design includes a substrate with a display area and a peripheral area, featuring multiple sub-pixels, data lines, power lines, selector switches, and power connection cables. The power connection cables are strategically arranged to overlap with selector switches and sources, reducing space occupation and facilitating power signal transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If power lines are arranged separately from selector switches in the peripheral area, then signal transmission is simplified, but the occupation space of the peripheral area increases
Solution Approach 1:
The patent merges the power lines with the selector switches by arranging them to overlap in the peripheral area. This combining approach allows both power signal transmission and switch control functions to share the same spatial region, thereby reducing the overall occupation space of the peripheral area while maintaining functional simplicity through careful routing design
2Area of stationary object
If the peripheral area is reduced to narrow the frame, then screen-to-body ratio is improved, but space for signal lines and circuits is reduced
Solution Approach 1:
The patent utilizes vertical overlapping arrangement in the peripheral area, where power lines and selector switches are positioned to overlap when viewed from above. This three-dimensional spatial utilization allows the peripheral area to accommodate more circuit elements without increasing the planar footprint, thereby maintaining screen-to-body ratio while providing sufficient space for all necessary signal lines and circuits
Data Source
AI summary
The display substrate includes a substrate, multiple sub-pixels, multiple data lines, multiple power lines, multiple data signal input lines, multiple selector switches, a first power bus located in a peripheral area and on a side, facing away from the display area, of the multiple selector switches, and multiple power connection cables located in the peripheral area and between the first power bus and the multiple power lines. The multiple power connection cables are electrically connected with the first power bus and the multiple power lines.