Display Alternating Row Updates to Reduce Power and Flicker
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Solution Overview
Problem
The reduction of refresh frequency in displays to conserve power leads to screen flicker and inefficient power usage, as existing methods do not effectively manage static content updates without compromising user experience or increasing computational waste.
Innovation Solution
A method where a display alternately updates data for a first and second portion of display units in each row only when content remains unchanged, reducing the number of pixels updated while maintaining the original refresh frequency, thereby minimizing power consumption and preventing screen flicker.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If refresh frequency of the display is reduced to conserve power, then power consumption is reduced, but screen flicker occurs and user experience deteriorates
Solution Approach 1:
The display screen is divided into multiple display units (e.g., 102, 104, 106, 108) arranged in a matrix pattern. Instead of updating the entire screen at once, only specific display units are updated in each frame, allowing partial refresh while maintaining overall screen stability and reducing power consumption.
Solution Approach 2:
The display adopts a periodic update pattern where different display units are updated in alternating frames. For example, even frames update certain display units while odd frames update others, creating a rhythmic refresh pattern that maintains screen stability while reducing overall power consumption compared to full-screen continuous refresh.
2Loss of energy
If refresh frequency is reduced to save power, then energy efficiency improves, but screen flicker increases and visual quality deteriorates
Solution Approach 1:
Different regions of the display (display units) are treated differently based on their update needs. The system selectively updates only certain display units in each frame based on content requirements, applying local refresh strategies rather than uniform full-screen refresh, thereby reducing energy waste while maintaining visual quality in critical areas.
Solution Approach 2:
The display update strategy is dynamic rather than static. The system adaptively determines which display units need updating in each frame based on content changes, user interaction, and display requirements. This dynamic approach allows the display to optimize between power consumption and flicker reduction in real-time.
3Reliability
If full screen is updated at every refresh cycle, then display quality is maintained, but power consumption increases and efficiency decreases
Solution Approach 1:
The patent extracts and updates only the necessary portions of the display (specific display units) rather than the entire screen. By identifying and isolating the minimal required update regions, the system maintains display quality in those areas while avoiding unnecessary power consumption from updating the entire display.
Solution Approach 2:
Instead of performing complete full-screen updates, the system applies partial updates to only the necessary display units. This partial action approach updates sufficient regions to maintain display quality while avoiding the excessive power consumption of comprehensive full-screen refresh cycles.
Data Source
AI summary
A display method, device and computer-readable medium are provided. The method includes: detecting whether there is any change in a displayed content for the display; and controlling the display to alternately update display data corresponding to a first portion and a second portion of display units in each row if it is detected that the displayed content does not change, wherein the display unit comprises n rows of pixels, and wherein n is a positive integer. The first portion of the display units comprises i first cells, the second portion of the display units comprises j second cells, and the first cells are alternate with the second cells, wherein i and j are positive integers. Moreover, the first cell comprises p successive pixels, and the second cell comprises q successive pixels, wherein p and q are greater than 1.