Parallax Display Module With Area-Based Distortion Correction
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Solution Overview
Problem
Current image display devices for stereoscopic vision struggle to correct distortion effectively, leading to suboptimal image quality for users.
Innovation Solution
An image display module comprising a display, a barrier, and a controller that divides the display into control areas based on distortion, controlling the minimum repeat unit and index for each area to manage parallax images and prevent crosstalk between the left and right eyes, thereby optimizing the stereoscopic viewing experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a single uniform control approach is used for the entire display, then the device complexity is low, but the distortion correction precision is insufficient
Solution Approach 1:
The display is divided into multiple display control areas, each with its own minimum repeat unit and index parameters. This segmentation allows distortion correction to be applied locally to each area based on its specific characteristics, thereby improving overall correction precision without requiring a completely complex centralized control system for the entire display.
Solution Approach 2:
Different display control areas are assigned different minimum repeat units and indices according to their local distortion characteristics. This local quality approach enables each area to be optimized independently for its specific distortion pattern, achieving higher precision correction where needed while maintaining simpler control in areas with less distortion.
2Reliability
If the minimum repeat unit and index are uniformly controlled across the display, then the control process is simple, but the stereoscopic image quality deteriorates due to distortion
Solution Approach 1:
The display is segmented into multiple control areas, each managing its own minimum repeat unit and index independently. This allows the system to maintain reliable stereoscopic image quality by adapting parameters to local distortion conditions, while the control complexity is managed through modular area-based control rather than uniform complex control across the entire display.
Solution Approach 2:
Each display control area has locally optimized minimum repeat unit and index values that match its specific distortion characteristics. This local quality approach ensures high stereoscopic image quality in each area by using parameters tailored to local conditions, rather than using uniform parameters that would compromise overall image quality.
3Manufacturing precision
If distortion correction is not applied, then the device structure remains simple, but the parallax image clarity and depth perception are compromised
Solution Approach 1:
The optical system uses segmented display control areas with locally adapted minimum repeat units and indices to correct distortion. This segmentation approach achieves clear parallax images with proper depth perception by addressing distortion locally in each area, without requiring a completely complex optical system redesign.
Solution Approach 2:
The optical system applies local quality correction by using different minimum repeat unit and index parameters in different display control areas based on their distortion characteristics. This enables clear image output with accurate depth perception in each area, achieving high manufacturing precision without overly complicating the overall optical system.
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
This solution significantly improves the quality of stereoscopic images by accurately correcting distortion and minimizing crosstalk, allowing users to view parallax images with enhanced clarity and depth perception.
Implementation Method 1
The barrier causes parallax between the first eye and the second eye by defining a traveling direction of image light for the parallax image
Data Source
AI summary
An image display module includes a display that displays a parallax image projected to eyes of a user, a barrier that causes parallax between the eyes by defining a traveling direction of image light for the parallax image, and a controller that controls the display. The controller divides the display into a plurality of display control areas based on distortion of the parallax image projected, and controls, for each of the plurality of display control areas, a minimum repeat unit and an index for the parallax image.