Foldable Electronic Display With Integrated Touch Sensing
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Solution Overview
Problem
Conventional electronic devices with both display and touch functions are limited in design, leading to increased cost, thickness, and weight due to the placement of the touch panel under the display panel.
Innovation Solution
An electronic device design incorporating a substrate with a folding region and non-folding region, featuring light emitting diodes, an organic structure, a sensing unit, and a sensing wire that crosses over the organic structure for electrical connection, allowing for a flexible and reduced thickness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a touch panel is attached to the lower side of a display panel, then the display and touch functions are integrated, but the device thickness and weight increase
Solution Approach 1:
The patent merges the touch sensing function with the display panel by forming a sensing unit directly on the display panel structure. The sensing unit includes conductive patterns that are integrated into the display panel layers, eliminating the need for a separate touch panel assembly and thereby reducing overall device thickness while maintaining both display and touch functions.
Solution Approach 2:
The sensing unit is nested within the display panel structure itself. The conductive patterns for sensing are formed within the same layer structure as the display elements, with the sensing electrodes embedded in the display panel architecture. This nesting approach allows the touch sensing functionality to be contained within the existing display panel thickness, avoiding additional external layers.
2Adaptability or versatility
If a touch panel is attached to the lower side of a display panel, then the display and touch functions are integrated, but the device weight increases
Solution Approach 1:
The patent combines the touch sensing functionality with the display panel into a single integrated structure. By forming the sensing unit directly on the display panel using the same manufacturing processes and materials, the patent eliminates the need for separate touch panel components and reduces overall device weight while maintaining full display and touch functionality.
Solution Approach 2:
The patent extracts the essential sensing functionality from a separate touch panel and integrates it directly into the display panel structure. By taking out the independent touch panel component and embedding the sensing capabilities within the display panel layers, the patent reduces device weight while preserving touch sensing capabilities.
3Ease of manufacture
If conventional design is used with separate touch panel, then manufacturing is straightforward, but the cost cannot be reduced
Solution Approach 1:
The patent merges the manufacturing processes for display and touch functions into a single integrated fabrication sequence. By forming the sensing unit patterns and conductive structures during the same manufacturing steps as the display panel, the patent reduces the number of separate manufacturing operations, simplifies production, and lowers overall device cost while maintaining manufacturing feasibility.
Solution Approach 2:
The patent creates a multi-functional display panel that serves both as the visual display and as the touch sensing interface. The same panel structure performs dual functions, eliminating the need for separate specialized components and reducing overall device complexity and cost while maintaining ease of manufacture through unified fabrication processes.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The design reduces the overall thickness and weight of the electronic device while enabling flexible operation and improved touch sensing capabilities, accommodating various input sizes and types.
Implementation Method 1
a plurality of light emitting diodes, an organic structure, a sensing unit, a control element, and a sensing wire. The substrate includes a folding region and a non-folding region. At least a portion of the light emitting diodes are disposed on the substrate in the non-folding region.
Data Source
AI summary
An electronic device is provided and includes a substrate, a plurality of light emitting diodes, an organic structure, a sensing unit, a control element, and a sensing wire. The substrate includes a folding region and a non-folding region. At least a portion of the light emitting diodes are disposed on the substrate in the non-folding region. The organic structure is disposed on the substrate, wherein in a top view, the organic structure is adjacent to an edge of the substrate. The sensing unit is disposed on the substrate in the folding region. The sensing wire crosses over the organic structure and is electrically connected between the sensing unit and the control element.