Display Panel Notch Design with Stacked Transmission Lines
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing display panels face challenges in minimizing the non-display region to maximize the display area, particularly due to the arrangement and number of conductive wires in liquid crystal displays, which occupy valuable space.
Innovation Solution
A display panel design featuring a notch extending inwardly from its edge, with signal lines and transmission lines arranged in a specific configuration to reduce space usage, allowing for integration with other electronic devices and achieving a full-screen display by overlapping and strategically placing transmission lines between pixel units.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conductive wires are arranged in an interlacing pattern around the pixel array to connect driving devices, then signal transmission capability is improved, but the non-display region area increases
Solution Approach 1:
The patent transitions from a planar arrangement of conductive wires to a three-dimensional stacked architecture. Transmission lines are arranged in multiple layers (first, second, and third sub-transmission lines) at different heights, allowing signals to be transmitted through vertical stacking rather than horizontal spreading. This dimensional change enables compact signal routing that connects pixel units without requiring additional lateral space, thus reducing the non-display region while maintaining transmission capability.
Solution Approach 2:
The patent implements nested transmission lines where the third sub-transmission line is positioned within the projection area of the second sub-transmission line, and the second sub-transmission line is positioned within the projection area of the first sub-transmission line. This nested configuration allows multiple transmission paths to occupy the same lateral footprint by stacking them vertically, enabling efficient space utilization and reducing the overall area required for signal transmission infrastructure.
2Area of stationary object
If the number of conductive wires in the pixel array is reduced to enlarge the display region, then display region area is improved, but signal transmission capability deteriorates
Solution Approach 1:
The patent compensates for the reduction in conductive wire quantity by utilizing vertical stacking. Instead of having multiple wires spread horizontally, the design uses multiple layers of transmission lines (first, second, and third sub-transmission lines) stacked vertically. This allows a smaller number of transmission line groups to serve multiple pixel units through the z-direction, maintaining adequate signal transmission capability while freeing up lateral space for display purposes.
Solution Approach 2:
Each transmission line structure in the patent serves multiple functions: the stacked transmission lines simultaneously provide signal transmission pathways for multiple pixel units, act as interconnectors between different pixel rows or columns, and enable both data and control signal routing through different layers. This multi-functionality reduces the total number of separate conductive elements needed while maintaining comprehensive signal transmission coverage across the display array.
Data Source
AI summary
A display panel having a notch extending inwardly from its edge and including a plurality of first signal lines having a first extending direction, a plurality of second signal lines having a second extending direction different from the first extension direction, a plurality of pixel units, and a plurality of transmission lines is provided. The pixel units are electrically connected to the first signal lines and the second signal lines. The transmission lines are electrically connected to the first signal lines. Part of the transmission lines includes a first sub-transmission line, a second sub-transmission line and a third sub-transmission line electrically connected to each other. The first sub-transmission line is disposed between the adjacent second signal lines. The second sub-transmission line is disposed between the adjacent first signal lines. The third sub-transmission line overlaps another transmission line in the second extending direction.