Display Panel Signal Layout for Narrow-Bezel Driving Circuits
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Solution Overview
Problem
The design of display panels in smart wearable and portable electronic devices is limited by the large width of the frame due to the presence of driving circuits and signal lines in the non-display area, which hinders the narrowing of the frame and affects the visual appearance.
Innovation Solution
The driving signal lines are partially arranged in the display area, reducing the width of the non-display area by integrating them into the display panel's design, and the shift registers are aligned upright to minimize space usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If driving signal lines are arranged in the non-display area, then the driving circuit can be properly connected, but the frame width becomes large which limits narrowing design
Solution Approach 1:
The patent applies dimensionality change by extending driving signal lines from the non-display area into the display area. Specifically, at least one first signal line is located in the display area and extends in the first direction to connect to the driving circuit in the non-display area. This spatial reconfiguration reduces the width required in the non-display area, enabling frame narrowing while maintaining proper circuit connectivity.
Solution Approach 2:
The patent segments the signal line routing into two distinct regions: signal lines in the non-display area that connect to the driving circuit, and at least one first signal line that extends into the display area. This segmentation allows the driving signal lines to be distributed across different spatial zones, optimizing the overall layout and reducing the frame width occupied by the driving circuit infrastructure.
2Length of stationary object
If driving signal lines are extended into the display area, then the non-display area width is reduced, but the signal lines may interfere with pixel circuits
Solution Approach 1:
The patent applies local quality by specifying that the first signal line extending into the display area is positioned adjacent to the pixel circuit rows and connects to the driving circuit. The signal line is strategically routed through specific regions of the display area where it can reach the driving circuit without causing harmful interference to the pixel circuits, optimizing both space utilization and signal integrity.
Data Source
AI summary
Provide are a display panel and a display device. The display panel includes a driving circuit arranged in a non-display area of the display panel and includes shift registers that are cascaded, driving signal lines configured to provide signals to the driving circuit, and at least one first signal line located in a display area of the display panel.