Display Screen Frame Rate Control via Area Segmentation
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Solution Overview
Problem
Liquid crystal displays (LCDs) face high power consumption and reduced endurance capacity due to refreshing the entire screen at a fixed high frame rate, even when only a portion of the screen is in focus, leading to ineffective power usage.
Innovation Solution
A method and apparatus that determine a focused area and non-focused area on the display screen, scanning the focused area at a higher frame rate and the non-focused area at a lower frame rate to reduce power consumption and improve terminal endurance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the entire display screen is scanned at a high frame rate, then picture fluency is improved, but power consumption increases
Solution Approach 1:
The display screen is divided into multiple scanning zones (first scanning zone and second scanning zone) with different scanning priorities. The method segments the scanning process by identifying a focused area that requires high frame rate scanning and non-focused areas that can tolerate lower frame rates, thereby reducing overall power consumption while maintaining picture fluency in critical regions
Solution Approach 2:
Different scanning strategies are applied to different regions of the display screen based on their importance. The focused area receives high-frame-rate scanning to ensure picture fluency, while non-focused areas use lower frame rates to conserve energy. This local differentiation resolves the contradiction by optimizing both picture quality and power consumption in their respective regions
2Speed
If the entire display screen is scanned at a high frame rate, then picture fluency is improved, but terminal endurance capacity decreases
Solution Approach 1:
The scanning process is segmented into different zones with different frame rates. By scanning only the focused area at high frame rate and non-focused areas at lower frame rates, the overall energy consumption is reduced, thereby extending terminal endurance capacity while maintaining picture fluency in the focused region
Solution Approach 2:
Instead of applying high frame rate scanning to the entire screen (excessive action), the method applies high frame rate scanning only to the focused area where it is actually needed (partial action). This reduces unnecessary energy consumption and extends terminal endurance while maintaining picture fluency where required
Data Source
AI summary
A method for controlling a frame rate of a display screen includes: determining a first area and a second area of a display screen; and scanning the first area at a first frame rate, and scanning the second area at a second frame rate, wherein the first frame rate is greater than the second frame rate.