Touch Control Display Panel with Preliminary and Master Touch Systems
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Solution Overview
Problem
Current touch control display panels face high power consumption due to the immediate activation of master touch systems upon startup, which is inefficient and consumes unnecessary energy.
Innovation Solution
Implementing a preliminary touch system with lower power consumption electrodes in both the display and non-display areas to detect initial touches, triggering the master touch system only when a touch is detected, thereby reducing overall power usage by delaying the activation of the higher power-consuming master touch system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the master touch system is activated immediately upon startup, then the touch control display panel can respond to touches without delay, but the power consumption increases significantly
Solution Approach 1:
The touch control system is divided into two independent segments: a preliminary touch system with preliminary touch electrodes and a master touch system with master touch electrodes. The preliminary touch system operates independently at lower power consumption, while the master touch system is activated only when needed, resolving the contradiction between immediate response capability and power consumption.
Solution Approach 2:
The preliminary touch system performs preliminary detection of touches before activating the master touch system. This preliminary action allows the system to prepare for potential touch events without immediately consuming the high power required by the master touch system, thus reducing overall power consumption while maintaining responsiveness.
2Reliability
If the master touch system operates continuously, then all touch events can be detected accurately, but unnecessary energy is consumed when no touches occur
Solution Approach 1:
The system dynamically adjusts its operational state based on touch detection needs. The preliminary touch system continuously monitors at low power, and only when a touch is detected does it trigger the master touch system to activate. This dynamic state change allows the system to maintain high reliability for touch detection while avoiding unnecessary energy consumption during periods when no touches occur.
Solution Approach 2:
The preliminary touch system acts as an intermediary between the user interaction and the master touch system. It filters and pre-processes touch events, triggering the master touch system only when necessary. This intermediary role ensures that the master touch system operates only when needed for accurate touch detection, eliminating energy waste during idle periods.
3Adaptability or versatility
If both preliminary and master touch systems are activated simultaneously, then comprehensive touch coverage is achieved, but the power consumption doubles
Solution Approach 1:
The system employs periodic action by alternating between the operation of the preliminary touch system and the master touch system. The preliminary touch system operates periodically at low power, and the master touch system is activated periodically only when the preliminary system detects a touch event. This periodic activation pattern achieves comprehensive touch detection coverage while significantly reducing overall power consumption compared to simultaneous operation.
Data Source
AI summary
A touch control display panel is disclosed. The touch control display panel includes a display area and a non-display area surrounding the display area. The panel also includes a preliminary touch system having a plurality of preliminary touch electrodes located in at least either of a part of the display area and the non-display area, the preliminary touch system is configured to detect whether there is a touch in at least either of the part of the display area and the non-display area of the touch control display panel. The panel also includes a master touch system having a plurality of master touch electrodes located in the display area. In addition, the master touch electrodes are configured to detect whether there is a touch in the display area.