Image Display Device Line-by-Line Progress Tracking
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Solution Overview
Problem
Conventional image-displaying devices face delays in displaying images due to fluctuating processing times for each line, leading to premature reading of image data before writing is completed, which can result in misalignment and poor user experience in real-time image preview.
Innovation Solution
A configuration that acquires progress information on image data processing for individual data units, allowing only completed units to be displayed, thereby minimizing time lag and ensuring that image data is displayed once processing is finished, regardless of varying processing times.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a common phase difference ΔT is defined for all lines to prevent premature reading, then reading before writing is prevented, but display delay increases due to using maximum processing period as margin
Solution Approach 1:
The image data is divided into multiple lines, and processing progress is tracked independently for each line. The display control section displays lines individually as they complete processing, rather than waiting for all lines to finish. This segmentation allows the system to avoid the delay caused by using the maximum processing period as a universal margin.
Solution Approach 2:
The display timing is made dynamic by continuously monitoring processing progress information and adjusting display timing accordingly. Instead of using a fixed common phase difference ΔT based on maximum processing time, the system dynamically determines when each line is ready for display based on actual processing completion status.
2Manufacturing precision
If processing period is extended to accommodate all lines, then all lines can be processed completely, but time lag between capture and display increases
Solution Approach 1:
The system prepares for display by continuously monitoring processing progress and having the display control section ready to display lines as soon as they complete processing. This preliminary preparation eliminates waiting time while ensuring processing completion.
Solution Approach 2:
Processing progress information is fed back to the display control section, which uses this feedback to determine when to display each line. This feedback mechanism ensures that lines are displayed only after processing is complete while minimizing delay.
3Device complexity
If a fixed phase difference is used for all lines, then system control is simplified, but lines with shorter processing periods experience unnecessary delay
Solution Approach 1:
The system transitions from static fixed phase difference control to dynamic control based on actual processing progress. The display control section adjusts display timing for each line based on real-time processing status, optimizing display speed without significantly increasing system complexity.
Solution Approach 2:
The system changes the parameter used for display timing from a fixed common phase difference to variable timing based on processing progress information. This parameter change allows each line to be displayed at the optimal moment, improving overall display speed.
Data Source
AI summary
An image-displaying device includes an image data generation section, a progress information acquisition section and a display control section. The image data generation section is configured to perform processing for generating image data indicative of an image of a subject based on output data from an image-capturing section that captures the image of the subject, the image data being composed of a plurality of predetermined data units. The progress information acquisition section is configured to acquire progress information indicative of a status of progress of the processing for generating the image data with respect to each of the predetermined data units of the image data. The display control section is configured to control the display section to display at least one of the predetermined data units of the image data for which the processing for generating the image data is ended based on the progress information.