Touch Display Panel Time-Sharing Transmission Unit Narrow Bezel
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Touch display panels face the challenge of excessive space occupation in non-display regions due to data lines and touch traces, which hinders the realization of a narrow bezel.
Innovation Solution
The integration of a time-sharing transmission unit that connects data lines and touch traces into a single transmission wiring, allowing for time-sharing signal transmission and reducing the physical space required in non-display regions by using transistors and control signals to manage the connection between data lines and touch traces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If data lines and touch traces are extended independently from display region to non-display region, then data transmission and touch signal transmission can be performed separately, but the space occupied in non-display region becomes excessive
Solution Approach 1:
The patent merges data line and touch trace functions into a single shared transmission line. The data line and touch trace are combined into one physical wiring that can transmit both data signals and touch signals by controlling the on/off state of transistors at different time periods, thereby reducing the occupied space in the non-display region while maintaining independent transmission capabilities
Solution Approach 2:
The patent implements periodic action by dividing time into different periods for data transmission and touch signal transmission. During first time periods, the transmission line transmits data signals; during second time periods, it transmits touch signals. This time-division multiplexing allows a single transmission line to handle multiple functions sequentially, reducing spatial requirements
2Area of stationary object
If time-sharing transmission unit is implemented to reduce space occupation, then space in non-display region is reduced, but device complexity increases due to additional transistors and control signals
Solution Approach 1:
The patent applies universality by designing the transmission line to serve multiple functions: it can transmit data signals during first time periods and touch signals during second time periods. The same physical wiring and transistor structures are reused for different purposes at different times, reducing the need for separate dedicated lines and thereby reducing space occupation
Solution Approach 2:
The patent implements dynamics by making the transmission line's function changeable over time. The characteristics of the transmission line (whether it transmits data or touch signals) are dynamically adjusted based on time periods and control signals, allowing flexible switching between different transmission modes to optimize space usage
Data Source
AI summary
A touch display panel and a display device are provided. The touch display panel includes transmission wirings, data lines, touch traces, and a first time-sharing transmission unit. By connecting an input terminal of the first time-sharing transmission unit to the transmission wiring, connecting a first output terminal of the first time-sharing transmission unit to the data line, and connecting a second output terminal of the first time-sharing transmission unit to the touch trace, one data line and one touch trace can be integrated into one transmission wiring to reduce occupation space of a non-display region.