Partitioned Display Panel Refresh Control for Brightness Uniformity
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Solution Overview
Problem
Dynamic partition refresh display technology in display panels results in non-uniform display due to varying refresh rates and brightness across different partitions, affecting the display effect.
Innovation Solution
Implementing a display panel with distinct first and second display regions, each with different data refresh rates and driving parameters to control brightness, allowing for dynamic adjustment of these parameters to achieve uniformity and improve display quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If dynamic partition refresh display technology is used to reduce power consumption, then power consumption is reduced, but display uniformity deteriorates due to different brightness in different partitions
Solution Approach 1:
The patent applies local quality by setting different driving parameters (such as duty cycle, grayscale, or refresh rate) for different display regions based on their specific requirements. High-motion regions use higher refresh rates while low-motion regions use lower refresh rates, and brightness is locally adjusted to compensate for perceived differences, thereby maintaining overall display uniformity while reducing power consumption.
Solution Approach 2:
The patent changes driving parameters dynamically based on motion detection results. When motion is detected in a partition, the refresh rate and brightness are adjusted; when no motion is detected, parameters are reduced to save power. This parameter adaptation resolves the contradiction by making the display uniform during motion while saving power during static periods.
2Productivity
If different refresh rates are applied to different partitions, then power consumption is reduced, but display uniformity deteriorates due to brightness differences
Solution Approach 1:
The patent applies local quality by independently controlling brightness and refresh rate parameters for each display partition based on local motion characteristics. This allows each region to operate at optimal parameters for its content, improving power efficiency while maintaining brightness uniformity through local compensation mechanisms.
Solution Approach 2:
The patent implements dynamic adjustment of driving parameters based on real-time motion detection. The system transitions between different operating states (high refresh rate when motion detected, low refresh rate when static), making the brightness and power consumption characteristics adaptive rather than fixed, thereby resolving the uniformity issue.
3Use of energy by stationary object
If refresh rates of different partitions are set independently, then power consumption is reduced, but display effect deteriorates due to non-uniform display
Solution Approach 1:
The patent changes driving parameters (refresh rate, duty cycle, grayscale) based on motion detection results and partition characteristics. By adaptively adjusting parameters rather than using fixed values, the system maintains high display quality when needed while reducing power consumption during static periods, resolving the contradiction between power efficiency and display quality.
Solution Approach 2:
The patent implements a feedback mechanism where motion detection results are used to adjust driving parameters in subsequent frames. This closed-loop control ensures that display uniformity is maintained by detecting non-uniformity conditions and compensating through parameter adjustment, thereby maintaining reliability while improving power efficiency.
Data Source
AI summary
Provided are a display panel, a driving method of a display panel, and a display device. The display panel includes a first display region and a second display region. A working process of the display panel includes a first mode. In the first mode, a data refresh rate of the first display region is F11, a data refresh rate of the second display region is F21, and F11≠F21. In the first mode, a driving parameter of the first display region is different from a driving parameter of the second display region, the driving parameter of the first display region is used for controlling brightness of the first display region, and the driving parameter of the second display region is used for controlling brightness of the second display region.