Touch Screen Device With Conductive Tip Pen For Button Signal Transmission
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Solution Overview
Problem
Existing touch screen devices with integrated touch panels face increased manufacturing complexity and cost due to the need for separate electrodes and wireless communication modules in touch pens for precise button manipulation information transmission.
Innovation Solution
A touch screen device design that eliminates the need for separate sensors and wireless communication modules by using a touch pen with a conductive tip to receive and transmit touch electrode driving signals, allowing accurate touch detection and button manipulation information transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If separate electrodes and sensors are provided in the touch panel for precise touch detection, then touch detection accuracy is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The touch electrode serves multiple functions: it acts as both the display electrode for the display panel and the touch detection electrode for the touch panel. This multi-functionality eliminates the need for separate electrodes, reducing device complexity while maintaining touch detection accuracy through the use of existing electrode structures for dual purposes.
Solution Approach 2:
The touch panel and display panel are merged into a single integrated structure where the touch electrode and display electrode are combined. This merging eliminates the need for separate sensor electrodes in the touch panel, simplifying the overall device structure while preserving precise touch detection capabilities through the integrated electrode system.
2Loss of information
If a separate wireless communication module is provided in the touch pen for transmitting button manipulation information, then information transmission capability is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The wireless communication module is replaced with a conductive tip that transmits button manipulation information through electrical conduction. When the user presses a button on the touch pen, the resulting electrical signal is directly conducted to the touch electrode, eliminating the need for complex wireless communication hardware while maintaining information transmission capability.
Solution Approach 2:
The conductive tip acts as an intermediary element that transfers button manipulation information from the touch pen to the touch electrode. This intermediary mechanism uses electrical conduction through the conductive tip to convey button press information, replacing the need for wireless communication modules and simplifying the touch pen structure.
3Reliability
If multiple separate electrodes are provided in the touch panel, then touch detection capability is improved, but manufacturing cost increases
Solution Approach 1:
The touch electrode performs dual functions as both display and touch detection electrode, eliminating the need for additional sensor electrodes. This reduces the total number of electrodes that need to be manufactured and assembled, lowering manufacturing costs while maintaining reliable touch detection capability through the multi-functional electrode design.
Solution Approach 2:
The touch panel and display panel are merged into a single structure with combined electrodes, reducing the total electrode count and simplifying the manufacturing process. This merging approach maintains touch detection reliability by using the integrated electrode system for both display and touch functions, thereby reducing manufacturing complexity and cost.
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
This approach enhances touch detection accuracy, simplifies the device structure, reduces manufacturing costs, and maintains high touch sensitivity without additional electrodes, resulting in a more efficient and cost-effective touch screen solution.
Implementation Method 1
a touch pen receiving the touch electrode driving signal applied to the plurality of touch electrodes
Implementation Method 2
a touch driving circuit applying a touch electrode driving signal to the plurality of touch electrodes
Data Source
AI summary
Disclosed is a touch screen device for transmitting button manipulation information based on a touch pen without using a separate wireless communication module. The touch screen device includes a touch screen including a plurality of touch electrodes, a touch driving circuit applying a touch electrode driving signal to the plurality of touch electrodes, and a touch pen receiving the touch electrode driving signal applied to the plurality of touch electrodes and transmitting a pen output signal to the touch screen in response to the received touch electrode driving signal. The touch pen includes at least one button, and when a user manipulates the at least one button, the touch pen adjusts the pen output signal.