Temperature Sensing Routing for Display Panel
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Solution Overview
Problem
Display devices such as LCDs and electronic paper face issues with accurately measuring ambient temperature, which affects the mobility of liquid crystal molecules and charged polymer materials, leading to abnormal image display if driving modules do not generate proper signals based on accurate temperature readings.
Innovation Solution
A temperature sensing module is integrated into the display device, featuring a temperature sensing routing on the panel and a unit that measures resistance to generate temperature indicating information, allowing the driving module to adjust signals for optimal image display, with the routing configured to approximate the operating temperature of the active area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a temperature sensing module is integrated into the display device, then temperature measurement accuracy is improved, but device complexity increases
Solution Approach 1:
The temperature sensing routing is integrated directly into the panel structure, merging the temperature sensing function with the existing display panel components. This eliminates the need for separate temperature sensing modules and reduces overall device complexity while maintaining measurement accuracy.
Solution Approach 2:
The panel serves multiple functions: it acts as both the display component and the temperature sensing element. The temperature sensing routing is formed using the same materials and structures already present in the panel, making the panel a multi-functional component that reduces the need for additional dedicated temperature sensing hardware.
2Measurement precision
If temperature sensing routing is configured on the panel, then temperature sensing accuracy is improved, but manufacturing complexity increases
Solution Approach 1:
The temperature sensing routing is combined with the existing panel manufacturing process. The routing is formed using the same thin-film deposition and patterning techniques already used for creating the display structure, thereby integrating temperature sensing capability into the standard manufacturing workflow without requiring separate manufacturing steps.
Solution Approach 2:
The invention utilizes the existing electrical properties of the panel materials and changes their functional parameters. By adjusting the resistance characteristics of the routing materials already present in the panel, the system achieves temperature sensing capability through parameter optimization rather than through complex additional manufacturing processes.
3Reliability
If driving signals are adjusted based on temperature, then display performance is improved, but control complexity increases
Solution Approach 1:
The system implements a feedback mechanism where the temperature sensing unit continuously monitors the panel temperature and provides this information to the driving module. The driving module then automatically adjusts the driving signals based on the detected temperature, creating a closed-loop control system that maintains optimal display performance across varying temperature conditions without requiring complex manual intervention.
Solution Approach 2:
The driving module is designed to automatically adjust its own operating parameters based on temperature feedback from the sensing routing. This self-service capability allows the system to adapt to temperature changes without requiring external control systems or complex user intervention, thereby maintaining display performance while minimizing control complexity.
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 solution ensures accurate temperature measurement and adjustment of driving signals, preventing abnormal image display by closely matching the sensed temperature with the actual operating temperature of the display components, thus maintaining consistent display performance across varying conditions.
Implementation Method 1
a temperature sensing unit, able to sense a resistance of the temperature sensing routing and generate a temperature indicating information according to the resistance
Implementation Method 2
configured on a panel of the display device; and a temperature sensing unit, able to sense a resistance of the temperature sensing routing and generate a temperature indicating information according to the resistance
Data Source
AI summary
A temperature sensing module for a display device includes a temperature sensing routing, configured on a panel of the display device; and a temperature sensing unit, able to sense a resistance of the temperature sensing routing and generate a temperature indicating information according to the resistance; wherein the temperature indicating information indicates an operating temperature of an active area of the panel and is utilized to adjust at least one driving signal that controls the active area to display images.