Integrated Touch Detection Chip for Simultaneous Position and Pressure Sensing
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Solution Overview
Problem
Current touch input devices require separate configurations for detecting touch position and touch pressure, leading to increased manufacturing costs, complexity, and occupied space due to the need for distinct touch sensor panels and pressure electrodes.
Innovation Solution
A touch detection chip with a drive unit and sensing unit that applies and receives signals from multiple electrodes, including pressure detection electrodes, to simultaneously detect touch position and pressure, integrating these functions into a single chip to reduce complexity and space requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate configurations are used for detecting touch position and touch pressure, then detection functionality is achieved, but manufacturing cost increases and manufacturing process becomes more complex
Solution Approach 1:
The patent merges the touch position detection configuration and touch pressure detection configuration into a single integrated touch detector chip. The drive unit and sensing unit are combined in one chip, allowing both touch position and pressure to be detected simultaneously without requiring separate manufacturing processes, thereby reducing manufacturing complexity and cost while maintaining full detection functionality.
Solution Approach 2:
The integrated touch detector chip performs multiple functions: it detects both touch position and touch pressure using the same drive unit and sensing unit. The single chip serves as a universal detector that handles both detection tasks, eliminating the need for separate specialized components and simplifying the overall system architecture.
2Adaptability or versatility
If separate configurations are used for detecting touch position and touch pressure, then detection functionality is achieved, but the device occupies greater volume and area
Solution Approach 1:
The patent combines the touch position detection and touch pressure detection configurations into a single integrated chip. By merging these previously separate components, the overall device area is significantly reduced, as the integrated chip occupies less space than two separate configurations would require, while maintaining the ability to detect both touch position and pressure.
Solution Approach 2:
The single integrated touch detector chip serves as a universal component that performs both touch position detection and touch pressure detection. This multi-functionality allows the system to achieve complete detection capability with a single component, thereby minimizing the total area occupied by the device.
3Adaptability or versatility
If separate configurations are used for detecting touch position and touch pressure, then detection functionality is achieved, but manufacturing cost increases
Solution Approach 1:
The patent merges the touch position detection and touch pressure detection into a single integrated chip. This consolidation reduces manufacturing costs by eliminating the need to produce, assemble, and manage separate configurations. The single chip requires fewer manufacturing steps and has lower production costs compared to separate components, while maintaining full detection functionality.
Solution Approach 2:
The integrated touch detector chip is a universal component that performs both touch position and pressure detection. By using a single multi-functional chip instead of separate components, the system reduces manufacturing costs through simplified production processes, reduced component count, and lower assembly requirements, while achieving complete detection capability.
Data Source
AI summary
A touch detection chip may be provided that includes: a drive unit which applies a drive signal to at least two of a plurality of electrodes; a sensing unit which receives a plurality of signals from the at least two of the plurality of electrodes and detects a touch position and a touch pressure; and a plurality of input terminals for receiving the plurality of signals. At least one of the plurality of input terminals is a pressure detection input terminal.