Dual Touch Module Layout to Reduce Chip Pads and Space
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Solution Overview
Problem
As the size of the touch panel increases, the number of touch electrodes and chips also increases, leading to a corresponding increase in chip space occupation.
Innovation Solution
The electronic device incorporates a first and second touch module with separate touch electrodes, connected to an integrated chip that processes touch signals, allowing for independent driving of these modules through dedicated processing units, thereby reducing the need for multiple chips and saving chip space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If the size of the touch panel increases, then the touch area and functionality are improved, but the number of chips and chip space occupation increase
Solution Approach 1:
The patent merges multiple processing units (first processing unit and second processing unit) into a single integrated chip. The integrated chip includes both processing units, multiple display signal lines connected to display electrodes in the first touch area, and multiple touch signal lines connected to touch electrodes in both first and second touch areas. This consolidation reduces the number of separate chips needed and decreases overall chip space occupation while maintaining support for large touch panel areas with multiple touch zones.
2Quantity of substance
If the number of touch electrodes increases, then the touch sensitivity and coverage are improved, but the number of pads of chips increases
Solution Approach 1:
The integrated chip is designed with multi-functionality to handle multiple touch electrodes across different touch areas. The first processing unit manages touch electrodes in the first touch area, while the second processing unit manages touch electrodes in the second touch area. The chip also controls display electrodes in the first touch area. This universal design allows a single chip to accommodate a large number of touch electrodes without proportionally increasing the number of pads, as the processing units are shared resources that can handle multiple electrodes efficiently.
Data Source
AI summary
The disclosure provides an electronic device. The electronic device has a first touch area and a second touch area. The first touch module is disposed in the first touch area and includes multiple first touch electrodes. The second touch module is disposed in the second touch area and includes multiple second touch electrodes. Multiple display electrodes are disposed in the first touch area, but not disposed in the second touch area. The integrated chip is electrically connected to the first touch module and the second touch module, and is configured to process a first touch signal transmitted by at least one of the first touch electrodes and process a second touch signal transmitted by at least one of the second touch electrodes. The electronic device of the disclosure can effectively save the number of pads of chips and reduce the chip space.