Electronic Paper Temperature-Based Refresh Timing for Display Quality
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing electronic papers experience a gradual deterioration in display quality over time, particularly in high-temperature environments, despite maintaining display content without power supply.
Innovation Solution
Incorporating a temperature sensor to detect ambient temperature and a refresh timing determiner to control the execution of a refresh operation based on detected temperature, ensuring the display quality is maintained by adjusting the refresh timing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a refresh operation is executed periodically to maintain display quality, then display quality is improved, but power consumption increases
Solution Approach 1:
The patent applies dynamics by making the refresh timing adjustable based on temperature conditions. The control device dynamically changes the refresh timing from a fixed periodic schedule to a temperature-dependent schedule, extending refresh intervals when temperature is low and reducing them when temperature is high, thus optimizing the balance between display quality maintenance and power consumption
Solution Approach 2:
The patent changes the parameter of refresh timing based on temperature detection. The control device modifies the refresh interval parameter according to the detected temperature, using longer intervals in low-temperature environments and shorter intervals in high-temperature environments, thereby adapting power consumption to actual display quality needs
2Use of energy by moving object
If the refresh interval is extended to reduce power consumption, then power consumption is reduced, but display quality deteriorates
Solution Approach 1:
The patent implements feedback by using temperature detection to inform the control device about environmental conditions. The temperature sensor provides continuous feedback on ambient temperature, which the control device uses to adjust refresh timing, creating a closed-loop system that optimizes both power consumption and display quality based on actual conditions
3Ease of operation
If a fixed periodic refresh operation is used, then control is simple, but display quality cannot be maintained in high-temperature environments
Solution Approach 1:
The patent applies self-service by enabling the system to automatically adjust its own operation based on environmental conditions. The temperature sensor and control device work together to autonomously determine appropriate refresh timing without external intervention, allowing the system to self-optimize display quality maintenance while managing power consumption
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
The solution effectively maintains display quality in high-temperature environments by suppressing deterioration through timely refresh operations, ensuring consistent image display over extended periods.
Implementation Method 1
a temperature sensor 2, and a control device 20. The temperature sensor 2 detects a temperature
Implementation Method 2
The display panel includes color particles 132 that move by being applied with a voltage
Data Source
AI summary
An electronic paper includes: a display panel including color particles that move by being applied with a voltage; a temperature sensor that detects a temperature; a display controller that controls a write operation of writing an image on the display panel by applying a voltage to the color particles; and a refresh timing determiner that determines a refresh timing for executing a refresh operation in which, after the write operation previously performed, the write operation is performed again, wherein the refresh timing determiner determines the refresh timing based on a detected temperature by the temperature sensor, and the display controller executes the refresh operation at the refresh timing.