Input Output Panel With Dual Conductive Films For Object Sensing
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Solution Overview
Problem
Current input/output panels and devices lack the convenience and reliability needed for precise object sensing and high-resolution image display, particularly in touch-sensitive display devices.
Innovation Solution
An input/output panel comprising a display element, a first conductive film, and a second conductive film, where the second conductive film is positioned to create an electric field that is interrupted by an approaching object, allowing for object sensing and high-resolution image display by changing the potential of the conductive films.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a touch sensor is added to a display device to enable touch input, then input functionality is improved, but device complexity increases
Solution Approach 1:
The patent combines the touch sensor electrodes with the display electrode structure, where the second electrode serves dual purposes as both a display component and a touch sensing element. This merging eliminates the need for separate touch sensor layers, thereby adding input functionality while avoiding additional device complexity
Solution Approach 2:
The second electrode is designed to perform multiple functions: it serves as an electrode for the display element and simultaneously as an electrode for the touch sensor. This multi-functionality allows the device to gain touch input capability without requiring additional dedicated components, thus improving versatility without proportionally increasing complexity
2Measurement precision
If an electric field is formed between conductive films for object sensing, then object detection capability is improved, but energy consumption increases
Solution Approach 1:
The patent employs periodic scanning of the conductive films to detect objects. Instead of maintaining continuous electric fields across all conductive films simultaneously, the system periodically activates specific films in a scanning sequence. This periodic action maintains adequate object detection capability while significantly reducing overall energy consumption compared to continuous operation
Solution Approach 2:
The system dynamically controls the activation and potential levels of the conductive films based on scanning requirements. By adjusting the electric field configuration dynamically during the scanning process rather than maintaining static fields, the system achieves effective object detection with optimized energy usage
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 a novel input/output panel that is highly convenient and reliable, capable of sensing objects and displaying images at higher resolutions than previous technologies, by utilizing the electric field interruption to detect and display object positions effectively.
Implementation Method 1
The second conductive film is provided so that an electric field which is partly interrupted by an object approaching a region overlapping with the display element is formed between the first conductive film and the second conductive film
Data Source
AI summary
A novel input/output panel that is highly convenient or reliable is provided. In addition, a novel input/output device that is highly convenient or reliable is provided. The input/output panel includes a display element, a first conductive film, and a second conductive film. The first conductive film is electrically connected to a plurality of pixel circuits, and the second conductive film is provided so that an electric field which is partly interrupted by an object approaching on the display side of the display element is formed between the first conductive film and the second conductive film.