Multi-Area Display Frame Rate Compensation for Lower Power
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Solution Overview
Problem
Existing display technologies face challenges in balancing energy efficiency with computational burden and optical compensation needs, particularly in mobile devices where different display areas require varying frame rates, leading to increased power consumption and processing demands.
Innovation Solution
An adaptive multi-area frame rate display system that divides the display panel into multiple areas, calculates frame rates independently using area count and frame count registers, and applies corresponding compensation parameters without external control, reducing the need for application processor intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the display frame rate is increased to support higher screen update rates, then the display screen becomes smoother and user visual experience is improved, but the power consumption of the display increases significantly
Solution Approach 1:
The display panel is divided into multiple independent display areas, each capable of operating at different frame rates. This segmentation allows the system to apply high frame rates only to specific areas that require smooth motion (such as video playback regions) while maintaining lower frame rates in other areas (such as static UI elements), thereby reducing overall power consumption while preserving visual quality where needed.
Solution Approach 2:
Different frame rates are applied to different display areas based on their specific content requirements. The system dynamically adjusts the refresh rate of each area according to whether it contains motion-intensive content or static information, optimizing the balance between visual experience and energy efficiency on a local basis rather than applying a uniform frame rate across the entire display.
2Reliability
If the application processor dynamically adjusts compensation strategies for different frame rates, then optical compensation effectiveness is improved, but computational burden and resource consumption increase
Solution Approach 1:
The frame rate detection and compensation parameter selection functions are extracted from the application processor and implemented in the display driver chip. This extraction removes the computational burden from the application processor while maintaining effective optical compensation, as the display driver chip independently monitors frame rates of different display areas and applies appropriate compensation parameters without requiring processor intervention.
Solution Approach 2:
The display driver chip performs self-service by autonomously detecting the frame rates of different display areas and automatically selecting and applying the corresponding compensation parameter sets. This self-service mechanism eliminates the need for external control and dynamic adjustments by the application processor, reducing resource consumption while ensuring effective optical compensation is maintained.
3Adaptability or versatility
If external control is used to manage frame rates and compensation parameters, then system flexibility is maintained, but resource consumption and operational complexity increase
Solution Approach 1:
The display driver chip is designed to autonomously detect frame rates of different display areas and automatically select appropriate compensation parameter sets without requiring external control signals. This self-service capability maintains system adaptability to different content requirements while significantly reducing resource consumption by eliminating the need for continuous external monitoring and control operations.
Data Source
AI summary
An adaptive multi-area frame rate display system and a method employed are provided. The method includes: dividing a display panel into a plurality of display areas and setting a plurality of compensation parameter sets corresponding to a plurality of frame rates; receiving display stream data; controlling the plurality of display areas of the display panel to display an image corresponding to the display stream data; performing a multi-area frame rate calculation operation to obtain a frame rate of each of the plurality of display areas; and, for each of the display areas, applying the compensation parameter set to which the frame rate of each of the display areas corresponds, so as to compensate an image subsequently displayed in each of the display areas.