Always-on Display Deterioration Calculation via Element Segmentation
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Solution Overview
Problem
Conventional electronic devices with always-on-display (AOD) functions face issues with power consumption and data accumulation due to frequent sampling of screen data, leading to increased power usage and redundant data generation, especially in wearable devices like smartwatches, which can result in uneven image representation and display deterioration.
Innovation Solution
An electronic device with a processor, display, and display driver integrated circuit (DDI) that generates and accumulates deterioration information by distinguishing between fixed, repeating, and changing elements on the screen, reducing the need for frequent data sampling and processing, thereby minimizing power consumption and data redundancy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If data is sampled in units of frames, then the data according to the change in screen is accurately calculated, but the power consumed when the DDI accesses the processor or memory increases
Solution Approach 1:
The patent segments the screen elements into three categories: fixed elements that do not change, repeating elements that follow predefined patterns, and changing elements that require actual sampling. This segmentation allows the system to process only the necessary portions of the screen, avoiding full-frame sampling and reducing power consumption while maintaining accuracy for elements that actually change.
Solution Approach 2:
Instead of performing complete frame-by-frame sampling of the entire screen, the patent applies partial action by sampling only the changing elements and using predefined rules for repeating elements. This partial sampling approach maintains measurement accuracy for dynamic content while significantly reducing the power consumption associated with processing the entire screen.
2Measurement precision
If sampling is performed frequently, then the data according to the change in screen is accurately calculated, but the amount of data to be accumulated and recorded becomes vast
Solution Approach 1:
The patent extracts only the essential information by identifying and processing solely the changing elements on the screen. By taking out the dynamic content from the complete screen data, the system accumulates minimal necessary data for deterioration calculation, avoiding the vast data accumulation that would result from full-frame sampling while maintaining measurement precision.
Solution Approach 2:
The patent segments screen elements into fixed, repeating, and changing categories, and only processes the changing elements for data accumulation. This segmentation strategy reduces the quantity of data to be stored and processed while preserving the accuracy needed to calculate display deterioration, as only elements that actually change contribute to degradation.
3Manufacturing precision
If the screen resolution and usage time increase, then the display provides better quality and longer operation, but the amount of data to be accumulated and recorded becomes vast
Solution Approach 1:
The patent applies local quality by treating different regions of the screen differently based on their characteristics. High-resolution areas with changing content are sampled and processed, while areas with fixed or repeating patterns use predefined rules. This localized approach maintains high display quality where needed while minimizing data accumulation across the entire high-resolution screen over extended usage periods.
Data Source
AI summary
Disclosed is an electronic device comprising at least one sensor, a communication circuit, a display, and at least one processor operationally connected to the display, wherein the at least one processor is configured to: display, on the display, a watch screen including a fixed element displayed at a designated location on the display, a repetitive element displayed on the basis of at least a designated rule, and a changing element associated with information obtained through the at least one sensor or received through the communication circuit; generate first data on the basis of at least one of the designated rule or the shape of the repetitive element; generate second data based on at least one of the fixed element or the changing element, in response to the changing element changing from a first value to a second value; and generate first deterioration information on the basis of the first data, the second data, and the duration over which the changing element maintains the first value. Various other embodiments understood through the specification are also possible.