Display Panel Corner Area Expansion via Multi-Layer Wiring
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Solution Overview
Problem
Conventional display panels struggle to effectively utilize corner areas for image display, leading to reduced display area efficiency and increased non-display areas in curved and foldable devices.
Innovation Solution
The display panel design includes corner light-emitting elements, pixel circuits, and connection wirings on multiple layers, allowing for extended image display into corner areas with shared pixel electrodes and bridge wirings, and transparent conductive materials for efficient connectivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If the display area is expanded to include corner regions, then the overall display area efficiency is improved, but the device complexity increases due to additional corner light-emitting elements, pixel circuits, and multi-layer connection wirings
Solution Approach 1:
The patent extends the display area into corner regions by utilizing multi-layer connection wirings that route signals from pixel circuits in the main display area to light-emitting elements positioned in the corner areas. This spatial extension into previously unused corner zones effectively increases the display area without proportionally increasing device complexity, as the multi-layer wiring structure efficiently manages the additional connections.
Solution Approach 2:
The display panel is segmented into a main display area and corner display areas, with separate pixel circuits and light-emitting elements for each region. This segmentation allows independent optimization of each area while maintaining overall system integration through the multi-layer connection structure, resolving the contradiction between expanded display area and device complexity.
2Area of moving object
If corner light-emitting elements are added to expand display area, then the display area utilization is improved, but the manufacturing precision requirements increase due to alignment of multi-layer connection wirings
Solution Approach 1:
By utilizing multi-layer wiring structures, the patent routes connection signals through vertical stacking rather than horizontal routing across the substrate. This dimensional transition from 2D planar routing to 3D stacked routing reduces the horizontal distance and alignment complexity, thereby improving manufacturing precision while enabling corner display area expansion.
Solution Approach 2:
The connection wirings are nested across multiple layers, with lower-layer wirings positioned beneath upper-layer wirings. This nested multi-layer structure allows efficient routing of signals to corner light-emitting elements while minimizing cross-layer alignment requirements, as each layer can be independently fabricated and then precisely stacked, reducing overall manufacturing precision demands.
Data Source
AI summary
A display panel and a display apparatus are disclosed. The display panel includes: a substrate including a front display area, a first corner display area extending from a corner of the front display area, and a second corner display area extending from the first corner display area; a plurality of corner light-emitting elements arranged in the second corner display area; a plurality of pixel circuits arranged in the first corner display area; driving circuits arranged in the second corner display area and configured to provide driving signals to the plurality of pixel circuits; and a plurality of connection wirings connecting the plurality of pixel circuits and the plurality of corner light-emitting elements to each other and extending from the first corner display area to the second corner display area, wherein the plurality of connection wirings include first connection wirings disposed on a first layer and second connection wirings disposed on a second layer, and one of the plurality of pixel circuits is connected to at least two of the plurality of corner light-emitting elements.