Transparent Display Peak Luminance Control for Complex Backgrounds
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Solution Overview
Problem
Transparent display devices face reduced visibility of on-screen images due to complex backgrounds, which can be exacerbated by varying background complexities and distances, leading to inefficiencies in power consumption.
Innovation Solution
Incorporating a sensing element with a camera and distance sensor to adjust the peak luminance of on-screen images based on background complexity and viewing distance, using a timing controller to optimize image visibility and power usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the transparent display device maintains constant luminance output, then power consumption is stable, but visibility of on-screen image deteriorates when background complexity increases
Solution Approach 1:
The display device dynamically adjusts the luminance of the on-screen image based on real-time detection of background complexity. The timing controller modifies the peak luminance output according to the complexity level detected by the sensing element, transitioning from static constant luminance to dynamic adaptive luminance that responds to environmental conditions.
Solution Approach 2:
The sensing element continuously monitors the background complexity and feeds this information back to the timing controller, which then adjusts the luminance output accordingly. This closed-loop feedback mechanism enables the system to automatically compensate for background interference by increasing luminance when complexity is detected.
2Illumination intensity
If the transparent display device increases luminance to improve visibility, then on-screen image visibility improves, but power consumption increases
Solution Approach 1:
The system changes the luminance parameter adaptively based on background complexity conditions. Rather than maintaining high luminance continuously, the timing controller adjusts the peak luminance parameter in response to detected background complexity, increasing it only when necessary to maintain visibility.
Solution Approach 2:
The luminance output transitions from a static constant value to a dynamic parameter that fluctuates based on environmental conditions. The timing controller dynamically adjusts the peak luminance according to real-time background complexity detection, optimizing the balance between visibility and power consumption.
3Ease of manufacture
If the transparent display device uses fixed peak luminance, then manufacturing is simple, but adaptability to different background conditions is reduced
Solution Approach 1:
The display device performs self-adjustment by using the sensing element to automatically detect background complexity and the timing controller to autonomously modify peak luminance without external intervention. This self-service capability adds adaptability while maintaining relatively simple manufacturing, as the adjustment is performed electronically through software control rather than requiring complex hardware modifications.
Data Source
AI summary
A transparent display device may include a display panel having a transmission area and a pixel area, a sensing element having a first camera for obtaining and supplying background image information about a rear background viewed through the transparent display device, and a timing controller configured to adjust a peak luminance of on-screen image information displayed on the display panel based on background complexity using the background image information supplied from the sensing element.