Sensor-Integrated Display Panel Touch Sensing Resolution
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Solution Overview
Problem
Existing electronic devices with integrated display and operation input panels face challenges in sensing high-resolution positions and processing data inputs efficiently, especially as manufacturing technology advances and applications become more diverse.
Innovation Solution
A sensor-integrated display panel with a contact electrode frame that varies the potential of sensor signals based on touch, allowing for the generation of three-dimensional image data and enabling flexible input information usage and function selection through synchronization with an application executing device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the display panel resolution and size are increased, then the sensing position resolution is improved, but the device complexity increases
Solution Approach 1:
The patent combines the display panel and operation input panel into a single integrated structure, where the display panel serves dual functions as both display and touch sensing components. This integration reduces device complexity while maintaining high sensing resolution by eliminating separate sensing layers and simplifying the overall architecture.
Solution Approach 2:
The display panel is designed to perform multiple functions simultaneously - displaying visual information and sensing touch positions. The same panel structure serves as both the display medium and the sensing element, allowing high-resolution position sensing without adding separate specialized components that would increase device complexity.
2Productivity
If the operation input panel processes data at high speed, then the productivity is improved, but the device complexity increases
Solution Approach 1:
The patent integrates the touch sensing function directly into the display panel structure, combining what would traditionally be separate high-speed processing components into a unified system. This integration enables high-speed data processing while reducing the number of discrete components and interconnections required.
Solution Approach 2:
The display panel structure itself provides the sensing capability without requiring additional dedicated sensing components. The panel's inherent structure enables direct sensing of touch positions, allowing high-speed processing to be achieved through the panel's own characteristics rather than through complex external processing systems.
3Adaptability or versatility
If the application flexibility is increased, then the adaptability is improved, but the device complexity increases
Solution Approach 1:
The integrated display and sensing panel is designed to support multiple applications and input methods through its universal structure. The same hardware configuration can accommodate different software applications and interaction modes, providing high adaptability without requiring physical reconfiguration or additional specialized components for each application.
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
Enables high-speed operation and easy adaptation to various applications by providing three-dimensional image data for enhanced input processing and function expansion, allowing for diverse usage types and improved user interaction.
Implementation Method 1
The operation input panel can detect a touch position on its surface where a user touches, and generates a sensing signal as a change of capacitance
Data Source
AI summary
A sensor-integrated display panel including an operation surface for performing an input operation and an image display surface which are formed integrally with a sensor as one piece. A data transfer device supplies the sensor-integrated display panel with a drive signal for driving the sensor and outputs sensing data corresponding to a potential of a sensor signal output from the sensor. A contact electrode is provided in a frame formed around the sensor-integrated display panel to vary the potential of the sensor signal when a conductor touches or does not touch to the frame. An application executing device receives and analyzes the sensing data and generates a signal to select an operating function in accordance with an analysis result.