Transparent Display Luminance Contrast Optimization
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Solution Overview
Problem
Transparent displays face challenges in maintaining consistent luminance contrast due to varying background transmissive light luminance, affecting the visibility of display information, especially in changing environmental brightness conditions.
Innovation Solution
A transparent display system comprising a display panel, data acquisition module, and computation module that captures field and display information luminance, determining if the luminance contrast falls within a specific range, and performing optimization procedures such as adjusting display information luminance, size, location, or field luminance to enhance visibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the display information luminance remains unchanged, then the transparent display maintains its transparency and allows background visibility, but the luminance contrast of the display information changes with field brightness conditions, affecting readability
Solution Approach 1:
The patent implements dynamic adjustment of display information luminance based on detected field luminance conditions. The system continuously monitors environmental brightness and automatically adjusts the luminance of displayed content to maintain optimal contrast ratios, transforming the static display into a dynamic adaptive system that responds to changing light conditions while preserving background transparency
Solution Approach 2:
The patent employs a feedback mechanism where the system detects field luminance (including foreground reflective light and background transmissive light), compares it against target contrast parameters, and adjusts display information luminance accordingly. This closed-loop control ensures that readability requirements are maintained across varying environmental conditions without compromising the transparent display's ability to show background scenes
2Adaptability or versatility
If the background transmissive light luminance varies with field brightness, then the transparent display adapts to environmental conditions, but the luminance contrast of display information becomes unpredictable and affects identification difficulty
Solution Approach 1:
The patent performs preliminary detection of field luminance conditions (both reflective and transmissive components) before rendering display information. By pre-assessing the environmental lighting context and calculating the required luminance adjustments to achieve target contrast ratios, the system proactively compensates for varying background transmissive light conditions, ensuring consistent readability across different field brightness levels
Solution Approach 2:
The patent dynamically changes the luminance parameter of display information based on detected field conditions. The system calculates appropriate luminance adjustments to maintain luminance contrast within a target range, transforming the display output parameters in real-time to compensate for variations in background transmissive light luminance caused by changing environmental brightness
Data Source
AI summary
A transparent display system including a display panel, a data acquisition module and a computation module is provided. The data acquisition is adapted to capture a field luminance of a field where the display panel is located and a display information luminance of display information of the display panel. The computation module determines whether a luminance contrast of the display information falls within a range from a lower boundary to an upper boundary, wherein the luminance contrast of the display information equals to the field luminance plus the display information luminance and then divided by the field luminance. If it is determined that the luminance contrast of the display information does not fall within the range from the lower boundary to the upper boundary, a luminance contrast optimization procedure is performed. An operation method of the transparent display system is also provided.