Display Image Correction for Polarizing Elements in the Eye Box
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Solution Overview
Problem
Existing display systems using diffracted light fields face challenges in providing a wide enough viewing area and field of view, especially when polarizing elements or filters are present, which can distort the image quality.
Innovation Solution
A processing means is introduced that detects the presence of polarizing elements or filters and adjusts the image data accordingly by applying a corrective data set to the display system, ensuring optimal image quality and uniformity across the viewing area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If polarizing elements or filters are used in the display system, then image contrast and selectivity are improved, but image quality uniformity and viewing area are worsened
Solution Approach 1:
The processing means performs preliminary detection of polarizing elements and pre-calculates corrective data sets before image display. By detecting the presence of polarizing filters in advance and computing appropriate correction parameters, the system prepares compensation strategies proactively, ensuring uniform image quality across the viewing area even when polarizing elements are present
Solution Approach 2:
The system dynamically changes display parameters based on detected polarizing conditions. The processing means adjusts image data parameters (such as brightness, contrast, and color balance) according to the detected polarizing filter characteristics, transforming the display parameters to compensate for the non-uniformity introduced by polarizing elements
2Area of stationary object
If the viewing area is expanded to provide wider field of view, then user comfort and accessibility are improved, but image quality consistency across the expanded area is worsened
Solution Approach 1:
The processing means applies different correction strategies to different regions within the expanded viewing area. By detecting polarizing filter effects and calculating position-specific corrective data, the system tailors image parameters to each local region, ensuring that image quality consistency is maintained across the entire expanded viewing area rather than applying uniform correction
Solution Approach 2:
The system implements a feedback mechanism where the processing means continuously monitors the displayed image quality across the viewing area and adjusts corrective parameters accordingly. The detection of polarizing elements triggers iterative refinement of correction data sets, ensuring that image quality consistency is maintained throughout the expanded viewing area
Data Source
AI summary
A processing means is disclosed. The processing means is for use in a display system to display a picture in an eye box to a user. The processing means is configured to: receive a signal indicative of a presence a polarizing element in the eye box; determine a corrective data set for the picture based on the signal; and output the corrective data set to the display system such that the picture is displayed based on the presence of the polarizing element.