Dual-Mode Input Sensor Layout for Touch and Electronic Pen Sensing
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Solution Overview
Problem
Existing display devices lack the ability to efficiently sense both touch inputs from a user's body and electronic pen inputs, limiting the versatility of input methods.
Innovation Solution
The display device incorporates a dual-mode input sensor with specific electrode configurations and connection lines that allow for separate sensing of touch inputs from a user's body and electronic pen inputs, utilizing distinct sensing modes for each.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single sensing electrode configuration is used, then the device structure remains simple, but the ability to sense both touch inputs and electronic pen inputs is lost
Solution Approach 1:
The input sensor uses the same sensing electrodes and sensing lines to detect both touch inputs from a user's body and electronic pen inputs by switching between different sensing modes. The control circuit configures the sensing electrodes to operate in first sensing mode for touch detection and second sensing mode for electronic pen detection, allowing one component to perform multiple functions without requiring separate electrode systems for each input type.
2Reliability
If separate sensing systems are used for touch and electronic pen inputs, then both input types can be sensed independently, but the device complexity increases
Solution Approach 1:
The input sensor dynamically switches between different sensing modes by reconfiguring the control circuit's connection to the sensing electrodes. The control circuit can configure the sensing electrodes to operate in first sensing mode for touch detection or second sensing mode for electronic pen detection, allowing the system to adapt its detection characteristics based on the input type without requiring physically separate sensing systems.
3Adaptability or versatility
If multiple sensing modes are implemented, then both touch and electronic pen inputs can be detected, but the control complexity increases
Solution Approach 1:
The control circuit merges the control functions for both touch sensing and electronic pen sensing into a single integrated unit. By centrally managing the configuration of sensing electrodes and the selection between first and second sensing modes, the control circuit reduces overall system complexity compared to having separate control circuits for each input type, while still providing adaptability to handle both touch and electronic pen inputs.
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 seamless integration of touch and electronic pen inputs, enhancing user interaction capabilities and flexibility in input methods.
Implementation Method 1
The input sensor may sense a touch or pressure using a user's body
Implementation Method 2
there is interest in an input sensor capable of sensing not only an electronic pen input
Data Source
AI summary
An input sensor and display device including the same are capable of sensing a touch (or touch interaction) by a user's body and a touch by an electronic pen.