Transparent Display Color Correction for Light-Shielding Areas
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Solution Overview
Problem
Display devices with transparent panels experience image quality deterioration due to color differences between light-shielding and light-transmitting areas caused by external lighting.
Innovation Solution
A display device with a transparent panel, a light-shielding part, and a processor that checks for both light-transmitting and light-shielding areas, obtains external illuminance values, and corrects image colors based on these values to mitigate color differences.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a light-shielding film is used to create light-shielding areas on the transparent panel, then the display can perform light-shielding mode and transparent mode, but the image quality deteriorates due to color difference between light-shielding area and transparent area caused by external lighting
Solution Approach 1:
The patent applies local quality by making different parts of the display have different properties: the light-shielding areas use a light-shielding film with specific optical characteristics while the transparent areas maintain the original transparent panel properties. The processor then applies different color corrections to different regions (light-shielding areas vs transparent areas) based on their respective external illuminance values, ensuring each region is optimized for its specific function while maintaining overall image quality consistency.
Solution Approach 2:
The patent changes the optical parameters of the light-shielding film by selecting materials with specific light-shielding characteristics that minimize color distortion. Additionally, the system dynamically adjusts color correction parameters based on external illuminance values detected in different regions, transforming the static light-shielding property into a dynamically adjustable characteristic that adapts to lighting conditions.
2Reliability
If a light-shielding film is applied to the transparent panel, then light-shielding function is achieved, but color difference appears between light-shielding area and transparent area under external lighting
Solution Approach 1:
The patent implements feedback by using illuminance sensors to detect external lighting conditions in both light-shielding areas and transparent areas. The processor receives this feedback information and dynamically adjusts color correction parameters for each region accordingly. This closed-loop system continuously monitors lighting conditions and compensates for color differences in real-time, eliminating the harmful color distortion effect while maintaining reliable light-shielding function.
Solution Approach 2:
The patent introduces an intermediary color correction mechanism that mediates between the light-shielding film and the transparent panel. The processor acts as an intermediary by processing image data and applying region-specific color corrections based on external illuminance values, bridging the optical gap between the two different areas and harmonizing their appearance under varying lighting conditions.
3Adaptability or versatility
If both light-transmitting area and light-shielding area exist in the transparent panel, then functional versatility is improved, but image quality deteriorates due to color difference caused by external lighting
Solution Approach 1:
The patent applies segmentation by dividing the display into distinct regions: light-transmitting areas and light-shielding areas. Each region is independently characterized by its external illuminance value, and the processor applies separate color correction algorithms to each segment. This segmentation allows the system to maintain different functional properties in different regions while ensuring image quality consistency across the entire display through region-specific optimization.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Improves image quality and provides a stable image by correcting color differences between light-shielding and light-transmitting areas based on external illuminance values.
Implementation Method 1
a light-shielding film that shields light from the rear surface of the transparent panel
Implementation Method 2
obtain an external illuminance value if both the light-transmitting area and a light-shielding area exist
Implementation Method 3
corrects an image color corresponding to the light-shielding area based on the obtained external illuminance value
Data Source
Figure 1
Figure 2(a)~2(c)
Figure 3(a)~3(c)
AI summary
The present disclosure relates to: a display device capable of correcting a color difference between a light-shielding area and a transparent area on a transparent display; and a color difference correction method thereof, the display device comprising: a transparent panel; a light-shielding unit for forming a light-shielding area on the transparent panel; and a processor for correcting image color of the light-shielding area, wherein the processor can check whether both a light-transmitting area and the light-shielding area are present on the transparent panel, acquire an external illuminance value if both the light-transmitting area and the light-shielding area are present, and correct the color of an image corresponding to the light-shielding area on the basis of the acquired external illuminance value.