Display Control Device Synchronizing Sensor and Display Regions
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Solution Overview
Problem
Existing image capturing devices face challenges in synchronizing the image capturing sensor and display section, especially when displaying various information types on the same screen, as the aspect ratios may differ, leading to difficulties in maintaining uniform delay times and frame synchronization.
Innovation Solution
A display control device and method that generate and output first and second display data corresponding to captured images, with the first data displayed on a first region and second data on a second region, using varying time lengths to ensure synchronization within specific horizontal synchronization periods, allowing for synchronization of the image capturing sensor and display section.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the display screen shows multiple display objects (live view image and additional information) with different aspect ratios, then the display versatility is improved, but the synchronization between image capturing sensor and display deteriorates
Solution Approach 1:
The display screen is divided into a first display region for showing live view images and a second display region for showing additional information. This segmentation allows each region to be synchronized independently, with the first region maintaining synchronization with the image capturing sensor while the second region can display information with different aspect ratios without affecting the overall synchronization reliability.
2Stability of the object's composition
If the frame rate of the display element is reduced to a fraction of the image capturing element, then the delay time uniformity is improved, but the display responsiveness deteriorates
Solution Approach 1:
The display control section dynamically adjusts the frame rate of the display element based on the captured image data. By making the frame rate variable rather than fixed, the system can maintain uniform delay time while improving display responsiveness to actual imaging conditions, resolving the contradiction between stability and speed.
3Loss of time
If the delay time is controlled to be less than the frame period of the image capturing element, then the display timeliness is improved, but the synchronization difficulty increases
Solution Approach 1:
The display control section uses feedback from the image capturing sensor to control the display timing. By continuously monitoring the captured image data and adjusting display operations accordingly, the system achieves timely display while simplifying synchronization through closed-loop control rather than complex open-loop timing mechanisms.
Data Source
AI summary
A display control device controls an image capturing sensor and a display. The display control device has an image data generation section and a display control section. The image data generation section generates first display data and second display data. The display control section outputs the first and second display data, the first display data that is outputted at first intervals having a first time length varying between “a” and “b” so as to be displayed on a first display region of the display within a first horizontal synchronization period having the first time length varying between “a” and “b”, and the second display data that is outputted at second intervals having a second time length of “a” so as to be displayed on the second display region of the display within a second horizontal synchronization period having the second time length of “a”.