Transparent Display Color Compensation via External Light Data
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Solution Overview
Problem
Transparent display devices face challenges in maintaining image quality and color accuracy due to the impact of external light, which affects the luminance and color rendition of the displayed images.
Innovation Solution
A method is introduced to compensate for the effects of external light by generating pixel data that adjusts for the external optical stimuli, involving the addition and subtraction of external optical data to maintain image quality and color accuracy, utilizing optical sensors and transformation matrices to process the data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If transparent display device allows external light to penetrate for transparency, then transparency is improved, but color accuracy and image quality deteriorate due to external light interference
Solution Approach 1:
The patent changes the parameters of pixel data through mathematical operations (addition, scaling, subtraction) to compensate for external light effects. By adjusting pixel data parameters based on measured external light conditions, the system maintains color accuracy while preserving transparency.
Solution Approach 2:
The patent implements a feedback mechanism where optical sensors measure external light conditions, and this information is used to adjust pixel data in real-time. The measured external light data feeds back into the pixel processing pipeline to dynamically compensate for color shifts.
2Manufacturing precision
If pixel data is adjusted to compensate for external light, then color accuracy is improved, but processing complexity increases
Solution Approach 1:
The patent performs preliminary measurements of external light conditions using optical sensors before displaying images. By pre-characterizing the external light environment and pre-calculating compensation factors, the system reduces real-time processing complexity while maintaining color accuracy.
Solution Approach 2:
The patent introduces intermediate processing steps including optical sensors to measure external light, transformation matrices to model light effects, and intermediate pixel data representations. These intermediaries facilitate the compensation process while organizing the complexity into manageable stages.
3Measurement precision
If luminance is increased to maintain image visibility, then recognition quality is improved, but power consumption increases
Solution Approach 1:
The patent selectively adjusts pixel data parameters based on external light conditions rather than uniformly increasing luminance. By precisely modifying only the necessary color and brightness parameters affected by external light, the system maintains recognition quality while minimizing unnecessary power consumption.
Data Source
AI summary
A method of compensating color of a transparent display device includes generating a first pixel data by adding an input image pixel data and an external optical data which represents an effect of an external light on the transparent display device, generating a second pixel data having the same color as the input image pixel data by scaling the first pixel data, and generating an output image pixel data by subtracting the external optical data from the second pixel data.