Imaging Display System Synchronous Control for Low Light
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Solution Overview
Problem
Imaging display systems face challenges in maintaining image quality when capturing moving images in varying light conditions, as adjusting exposure time is restricted by the refresh rate, leading to potential noise or blurriness, and existing solutions complicate the system with prolonged scanning times and increased load.
Innovation Solution
An imaging display system with a control device that measures light exposure and synchronously controls the refresh rate and exposure time of both the imaging device and display device, maintaining constant scanning times regardless of refresh rate or exposure time, allowing for efficient adjustment based on light conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If exposure time is prolonged to secure sufficient quantity of light in dark places, then image quality with less noise is obtained, but scanning time must be changed which imposes heavy load on the imaging display system
Solution Approach 1:
The patent applies dynamics by making the exposure time adjustable according to light conditions. The imaging device can dynamically change its exposure time based on the measured light exposure, allowing it to capture sufficient light in dark environments without requiring changes to the display refresh rate or scanning time, thus avoiding increased system load while improving image quality.
Solution Approach 2:
The patent changes the exposure time parameter of the imaging device based on light exposure measurements. By adjusting this parameter independently of the display refresh rate and scanning time, the system can optimize image quality in varying light conditions without imposing additional load on the imaging display system.
2Use of energy by moving object
If refresh rate is lowered to prolong exposure time in dark places, then sufficient quantity of light is secured, but scanning time increases which may impose heavy load on the imaging display system
Solution Approach 1:
The system dynamically adjusts the exposure time of the imaging device based on measured light exposure conditions. This allows the imaging device to capture sufficient light in dark environments by extending exposure time independently, without requiring the display refresh rate to be lowered or scanning time to be extended, thus avoiding the time loss and system load associated with slower scanning.
Solution Approach 2:
The patent changes the exposure time parameter independently of the display refresh rate. By adjusting only the imaging device's exposure time and not the overall system scanning rate, the system can increase light exposure quantity while maintaining constant scanning time, preventing the time loss that would result from slower scanning.
3Manufacturing precision
If exposure time is adjusted for different light conditions, then image quality is improved, but system complexity increases due to coordination between refresh rate and exposure time
Solution Approach 1:
The patent extracts the exposure time control from the display refresh rate control. By making the imaging device's exposure time independently adjustable based on light conditions, the system separates these two parameters. This eliminates the need for complex coordination between refresh rate and exposure time adjustments, reducing control complexity while maintaining improved image quality.
Solution Approach 2:
The system implements dynamic exposure time adjustment that is independent of display refresh rate. The imaging device can adapt its exposure time to varying light conditions without requiring synchronized changes to the display system, simplifying the control architecture while maintaining optimal image quality across different lighting environments.
Data Source
AI summary
According to one embodiment, an imaging display system includes an imaging device and a display device, which operate synchronously with each other. The imaging display system includes a control device. The control device is configured to measure light exposure when the imaging device captures an image and determine whether the measured light exposure is insufficient, and control the display device to decrease a refresh rate and the imaging device to prolong an exposure time, when determined that the light exposure is insufficient. The first scanning time for the imaging device to scan the image and the second scanning time required for the display device to scan the display panel are constant.