Display Panel Groove Layout for In-Panel Sensor Integration
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Solution Overview
Problem
Existing display devices face challenges in integrating various components within the display area without compromising the display functionality and structural integrity, particularly in thinner and more lightweight designs.
Innovation Solution
A display panel design featuring a substrate with distinct areas, including a first area for components, a second area for display, and a third area with a groove separating organic material layers, where a metal layer overlaps the groove, and inorganic layers with protruding tips, allowing for efficient integration of components like sensors and cameras.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If various components are arranged in the display area to increase functionality, then the versatility of the display device is improved, but the display functionality and structural integrity may be compromised
Solution Approach 1:
The display area is segmented into multiple functional zones: a first area for display elements, a second area for sensors, and a third area for other components. This spatial segmentation allows different components to coexist without interfering with each other's functionality, resolving the contradiction between versatility and display performance
Solution Approach 2:
The patent utilizes vertical layering (different depths within the display panel) to accommodate multiple components. By arranging components at different vertical positions and using transparent or translucent materials in certain layers, the design enables three-dimensional integration that preserves display functionality while adding sensors and other features
2Weight of moving object
If the display device is made thinner and more lightweight, then the portability is improved, but the space for integrating components is reduced
Solution Approach 1:
The patent employs a nested structure where multiple functional layers are integrated within each other. Sensors, circuitry, and other components are embedded within the display panel's layered structure, with each layer containing specific elements. This nesting approach maximizes component integration within a thin profile, resolving the contradiction between lightweight design and component versatility
Solution Approach 2:
The use of thin-film technologies for both display elements and sensor components enables the integration of multiple functions in a lightweight, thin structure. The flexible nature of thin-film layers allows for complex three-dimensional arrangements without significantly increasing overall device thickness or weight
3Adaptability or versatility
If components are integrated within the display area, then the versatility is improved, but the manufacturing complexity increases
Solution Approach 1:
The patent designs certain layers and structures to serve multiple functions simultaneously. For example, transparent conductive layers serve both as electrical interconnects and as structural support elements. This multi-functionality reduces the total number of separate components needed, simplifying the overall structure while maintaining high versatility
Solution Approach 2:
The patent merges the fabrication processes for display elements and sensor components into unified manufacturing steps. By combining material deposition, patterning, and bonding operations for multiple components into integrated process sequences, the patent reduces manufacturing complexity despite the increased functional integration
Data Source
AI summary
A display panel includes: a substrate comprising a first area, a second area, and a third area between the first area and the second area; a stack structure in the second area and comprising a pixel electrode, an opposite electrode, and an intermediate layer between the pixel electrode and the opposite electrode; a groove in the third area and separating at least one organic material layer included in the intermediate layer; and at least one metal layer in the third area and comprising a first opening overlapping the groove, wherein the groove is defined in a multi-layered film including an organic layer and an inorganic layer on the organic layer, and the at least one metal layer is between the substrate and the multi-layered film.