Temperature-Adaptive Variable Refresh for Display Motion Blur
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Solution Overview
Problem
Flat panel display devices experience motion blur and deteriorated front of screen properties due to multi-frame response deterioration, particularly at varying temperatures, leading to suboptimal image quality and increased power consumption.
Innovation Solution
A display device operates with a variable refresh rate profile that adjusts according to temperature, utilizing a timing controlling circuit to generate signals with varying refresh rates and frame numbers to maintain optimal image quality and reduce power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the display device operates with a fixed refresh rate, then the device complexity is reduced, but the multi-frame response property deteriorates at varying temperatures causing motion blur
Solution Approach 1:
The patent applies dynamics by making the refresh rate adjustable rather than fixed. The timing controlling circuit dynamically changes the refresh rate based on temperature conditions, allowing the display to adapt its operation mode to maintain optimal multi-frame response properties across different temperature ranges while preventing motion blur artifacts.
Solution Approach 2:
The patent implements parameter changes by modifying the refresh rate parameter according to temperature variations. The system transitions from a fixed refresh rate to a variable refresh rate that changes based on thermal conditions, thereby optimizing display performance and preventing deterioration of multi-frame response properties without requiring complex additional hardware.
2Reliability
If the display device operates with a high refresh rate to prevent motion blur, then the multi-frame response property is improved, but the power consumption increases
Solution Approach 1:
The system dynamically adjusts the refresh rate based on actual operating conditions (temperature). During standby mode or when temperature indicates stable conditions, the refresh rate is reduced to minimize power consumption. When temperature changes indicate potential multi-frame response issues, the refresh rate is increased to prevent motion blur, thereby optimizing the balance between performance and energy efficiency.
Solution Approach 2:
The patent changes the refresh rate parameter adaptively rather than maintaining a constant high value. By monitoring temperature and adjusting the refresh rate accordingly, the system achieves optimal multi-frame response properties when needed while significantly reducing power consumption during periods when high refresh rates are not necessary.
3Use of energy by moving object
If the display device operates with a low refresh rate to reduce power consumption, then the power consumption is reduced, but motion blur and front of screen property deterioration occur
Solution Approach 1:
The system dynamically switches between low and high refresh rates based on temperature conditions. During standby mode or when temperature is stable, a low refresh rate is used to minimize power consumption. When temperature variations are detected that could cause multi-frame response deterioration, the system dynamically increases the refresh rate to prevent motion blur, thus adapting performance to actual operational needs.
Solution Approach 2:
The system uses temperature information as feedback to determine the appropriate refresh rate. By monitoring temperature changes and using this feedback to adjust the refresh rate, the system prevents motion blur and front of screen property deterioration while maintaining low power consumption during stable conditions, achieving an optimal balance between performance and energy efficiency.
Data Source
AI summary
A display device includes a display panel displaying an image using a gate signal and a data signal. The display device includes a gate driving circuit generating the gate signal using a gate control signal. The display device includes a data driving circuit generating the data signal using a data control signal and an image data Application. The display device includes a timing controlling circuit generating the gate control signal, the data control signal, and the image data using an image signal and a plurality of timing signals. The timing controlling circuit is further configured to transmit the gate control signal, the data control signal, and the image data with a variable refresh rate profile different based on a temperature.