Display Panel Multilayer Signal Routing for Narrow Optical Frames
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Solution Overview
Problem
The introduction of optical component regions in display products, such as camera holes, disrupts the wiring and increases the non-display region around the optical component, leading to a decrease in screen ratio due to the need for surrounding wiring, which is not beneficial for a narrow frame design.
Innovation Solution
A display panel design where signal lines are partially or fully surrounded by a display region, with segments of these lines connected through connection lines in different layers, reducing the need for routing around the optical component regions and allowing for a narrower frame.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wirings are routed around the optical component region to maintain connection, then the connection reliability is improved, but the width of the non-display region increases and the screen ratio decreases
Solution Approach 1:
The patent applies dimensionality change by routing signal lines through different layers (first layer and second layer) to connect display regions across optical component regions. Instead of expanding the non-display region width in the planar dimension, the wiring transitions to the vertical dimension by using multiple stacked layers, allowing signal lines to pass underneath optical component regions without increasing the frame width.
Solution Approach 2:
The patent implements nesting by placing signal lines from different layers in a stacked configuration where first signal lines and second signal lines are positioned at different heights (different layers) but occupy the same horizontal space. This nested arrangement allows multiple wiring paths to coexist in a compact vertical stack, enabling reliable connections without expanding the lateral footprint of the non-display region.
2Area of stationary object
If the frame width around optical component regions is reduced to increase screen ratio, then the screen ratio is improved, but the wiring routing becomes more difficult and connection reliability may deteriorate
Solution Approach 1:
The patent resolves wiring complexity by transitioning from two-dimensional planar routing to three-dimensional multi-layer routing. Signal lines are distributed across multiple stacked layers, allowing them to pass under optical component regions without requiring wide frame spaces. This vertical dimension utilization simplifies the routing path and reduces wiring complexity while maintaining narrow frame widths.
Solution Approach 2:
The patent applies segmentation by dividing the wiring system into multiple independent layers, where each layer contains specific signal lines. This segmentation allows different signal lines to be routed independently on different layers, making the overall wiring system more manageable and less complex, while enabling compact frame design with high screen ratio.
3Area of stationary object
If signal lines are connected through multiple layers using connection lines, then the frame width is reduced and screen ratio is improved, but the manufacturing process becomes more complex
Solution Approach 1:
The patent addresses manufacturing complexity by systematically organizing signal lines across multiple layers with defined vertical stacking relationships. The multi-layer structure, while adding vertical complexity, actually simplifies manufacturing by allowing standard thin-film deposition and etching processes to be applied sequentially, creating a scalable fabrication approach that reduces overall device dimensions.
Solution Approach 2:
The patent implements multi-functionality by using the same multi-layer wiring architecture to simultaneously achieve multiple objectives: reducing frame width, maintaining connection reliability, enabling narrow frame design, and supporting various signal routing configurations. This universal structural approach simplifies manufacturing by providing a standardized platform that addresses multiple design requirements through a single architectural solution.
Data Source
AI summary
A display panel and a display device are provided. The display panel includes a first display region, a first optical component region, and a second optical component region. The first optical component region and the second optical component region are arranged along a first direction. The first display region at least partially surrounds the first optical component region and the second optical component region. The first display region includes first signal lines extending along the first direction. Each of some first signal lines includes a first line segment and a second line segment. The first line segment and the second line segment are electrically connected through a first connection line; and at least a portion of line segments of the first connection line is arranged in layers different from the first line segment and the second line segment.


