Transparent Display Image Compensation via Sensor Feedback
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Solution Overview
Problem
Transparent display devices face issues with image distortion and reduced visibility due to external light and background interference, causing color overlap and decreased contrast.
Innovation Solution
A transparent display device equipped with sensors to detect external light and viewer line of sight, and an image compensation unit to estimate and compensate for color coordinate distortions, ensuring accurate image display by generating compensation data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a transparent display device displays an image through a transparent panel, then the background is visible through the display, but the background light and color overlap with the displayed image causing color distortion and reduced contrast
Solution Approach 1:
The system performs preliminary measurement of background light and color characteristics using sensors before displaying the image. Based on these measurements, the system pre-calculates and applies compensation values to adjust the image data, thereby preventing color distortion before it occurs
Solution Approach 2:
The system uses sensors to continuously measure the actual background light conditions and displays this information to the controller. The controller uses this feedback to dynamically adjust the image compensation parameters, creating a closed-loop control system that maintains color accuracy under varying background conditions
2Adaptability or versatility
If the display panel allows background visibility, then transparency is achieved, but external light interference reduces image contrast and visibility
Solution Approach 1:
The system measures background light characteristics in advance using sensors and calculates compensation values before image display. This preliminary action allows the system to pre-adjust image parameters to counteract the expected light interference, maintaining visibility despite transparent panel characteristics
Solution Approach 2:
The system dynamically changes image display parameters (brightness, contrast, color values) based on measured background light conditions. By adjusting these parameters in real-time according to environmental conditions, the system maintains reliable image visibility while preserving transparency
3Manufacturing precision
If sensors and image compensation units are added to compensate for background interference, then color accuracy is improved, but device complexity increases
Solution Approach 1:
The control unit performs multiple functions: it controls the display panel, processes sensor signals, calculates compensation values, and adjusts image parameters. By making the control unit multi-functional, the system avoids adding separate dedicated circuits for each function, thereby limiting the increase in device complexity
Solution Approach 2:
The system uses the existing display panel and control unit to also serve as the measurement and processing platform. The same control unit that displays images also processes sensor data and applies compensation, eliminating the need for separate dedicated compensation hardware
Data Source
AI summary
A transparent display device for compensating for external environmental effects, such as color background overlapping, interference due to external light, and the like, which have an effect on an image, provides an original image with a minimized distortion to a viewer. According to the present disclosure, one or more sensors are provided on a front surface and a rear surface of the transparent display device to detect the viewer's line of sight and background, and to compensate for a distortion of the image based on color coordinates estimated according to the detection results, thereby providing an image with higher quality.