Foldable Digitizer Coil Layout With Holes and Liquid Metal
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Solution Overview
Problem
Existing electronic apparatuses with digitizers face challenges in maintaining folding characteristics and structural integrity during folding operations, particularly in foldable devices.
Innovation Solution
The electronic apparatus incorporates a digitizer with a base layer featuring a folding part containing holes and engraved patterns, where the digitizer includes sensing coils on both surfaces of the base layer, and the folding part is filled with liquid metal, enhancing the folding characteristics and structural stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a continuous coil structure is used in the folding area, then sensing coverage is improved, but folding characteristics and structural integrity deteriorate
Solution Approach 1:
The coil structure in the folding area is divided into multiple independent segments corresponding to individual holes, rather than using a continuous coil. Each hole is surrounded by its own coil segment, which allows the structure to flex during folding without creating stress concentration points that would damage a continuous coil. This segmentation maintains sensing capability while improving foldability.
Solution Approach 2:
The base layer incorporates a pattern of holes that allow the folding structure to bend more easily. These holes create a porous architecture that reduces structural rigidity in the folding area, enabling better folding characteristics while the coils surrounding each hole maintain the sensing function.
2Stability of the object's composition
If liquid metal is added to enhance folding characteristics, then flexibility is improved, but device complexity increases
Solution Approach 1:
The invention uses liquid metal as a filler material within the engraved patterns of the base layer, creating a composite structure that combines the mechanical properties of the solid base layer with the flexibility and conductivity of liquid metal. This composite approach enhances folding characteristics without requiring fundamentally new device architectures.
Solution Approach 2:
The liquid metal is confined specifically to the folding area within engraved patterns, rather than being distributed throughout the entire device. This localized extraction of the liquid metal component minimizes its impact on overall device complexity while maximizing its benefit to folding characteristics in the critical folding region.
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 solution improves the folding characteristics and structural integrity of foldable electronic devices by allowing seamless folding operations while maintaining effective sensing capabilities.
Implementation Method 1
The third portion includes liquid metal and is disposed in the engraved patterns
Implementation Method 2
The digitizer includes various sensing coils so as to be activated by an electric signal. An area in which the sensing coils are activated reacts to a signal applied from the outside.
Data Source
AI summary
An electronic apparatus includes a display module and a digitizer, the digitizer includes a plurality of engraved patterns in a folding part of a base layer thereof, and liquid metal may be disposed in the plurality of engraved patterns.