Shared Touch Driving Module for Multi-Panel Active Pen Synchronization
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Solution Overview
Problem
Existing display devices with multiple integrated display panels require multiple touch integrated circuits (TICs), leading to high manufacturing costs and power consumption, and synchronization issues between different TICs affect active pen functions.
Innovation Solution
A touch module with a shared touch driving module for multiple touch substrates, enabling touch switching among them, reducing the need for multiple TICs and ensuring synchronized active pen functions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a corresponding touch integrated circuit (TIC) is configured for each touch panel, then each display panel can provide touch function independently, but manufacturing cost and power consumption increase
Solution Approach 1:
Multiple touch substrates share a common touch driving module, merging previously separate TIC functions into a single integrated unit. The touch driving module includes integrated units that combine signal transmission circuits for multiple touch substrates, reducing the total number of TICs from multiple to one, thereby lowering power consumption while maintaining touch functionality across all display panels.
Solution Approach 2:
The touch driving module is designed with multi-functionality to serve multiple touch substrates simultaneously. Each integrated unit within the touch driving module can handle signals from multiple touch substrates through parallel signal transmission circuits, allowing a single module to perform the functions previously requiring multiple dedicated TICs.
2Reliability
If a corresponding touch integrated circuit (TIC) is configured for each touch panel, then each display panel can provide touch function independently, but manufacturing cost increases
Solution Approach 1:
Multiple touch substrates share a common touch driving module, merging previously separate TIC functions into a single integrated unit. The touch driving module includes integrated units that combine signal transmission circuits for multiple touch substrates, reducing the total number of TICs from multiple to one, thereby lowering manufacturing cost while maintaining touch functionality across all display panels.
3Adaptability or versatility
If multiple TICs are used for multiple display panels, then each panel has dedicated touch control, but synchronization issues affect active pen functions
Solution Approach 1:
Multiple touch substrates share a common touch driving module with centralized control logic. The integrated units within the touch driving module coordinate signal transmission across multiple touch substrates through shared control circuits, ensuring synchronized operation for active pen functions while maintaining the ability to independently control each touch panel.
Data Source
AI summary
Provided are a touch-control module, a display apparatus, and a touch-control driving method. The touch-control module comprises: a touch-control drive module (200), and a plurality of touch-control substrates (100), which are respectively connected to the touch-control drive module (200), wherein different touch-control substrates (100) are used for providing a touch-control function for different display panels (400); the touch-control drive module (200) is configured to perform touch-control switching on the plurality of touch-control substrates (100), the touch-control switching comprising: turning on a connection path with a target touch-control substrate (100), so as to perform touch-control detection on the target touch-control substrate (100), and turning off a connection path with a touch-control substrate (100) other than the target touch-control substrate (100); and the target touch-control substrate (100) is a touch-control substrate (100) that is currently providing the touch-control function.