Dynamic Parallax Adjustment for 3D Display Crosstalk
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Solution Overview
Problem
Existing three-dimensional image display devices face challenges in maintaining image quality when the positions of a user's right and left eyes shift, leading to discomfort and crosstalk issues, especially when the eyes move towards or away from the display.
Innovation Solution
A display device with a parallax adjustment unit and a control unit that detects the positions of the user's eyes and adjusts the display of pixels and light transmission in the barrier unit to ensure that the right eye image is viewed by the right eye and the left eye image is viewed by the left eye, even when the eyes move, by dynamically changing the arrangement of pixels and light transmission areas based on calculated distances and positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a barrier unit is used to control light transmission for three-dimensional image display, then the three-dimensional image quality is improved, but crosstalk and discomfort occur when the user's eye positions shift
Solution Approach 1:
The patent applies dynamics by making the barrier unit adjustable rather than fixed. The control unit dynamically changes the light transmission state of the barrier unit based on real-time detection of the user's eye position, allowing the system to adapt to eye movements and maintain proper image separation, thereby reducing crosstalk and discomfort while preserving three-dimensional image quality.
Solution Approach 2:
The patent implements feedback by using a detection unit to continuously monitor the user's eye position and feeding this information back to the control unit. The control unit then adjusts the barrier unit's light transmission accordingly, creating a closed-loop system that automatically compensates for eye position changes and maintains optimal display conditions.
2Stability of the object's composition
If the barrier unit is fixed to maintain proper parallax, then the three-dimensional image is stable, but the system cannot adapt when the user moves toward or away from the display
Solution Approach 1:
The patent transforms the static barrier unit into a dynamic component that can adjust its light transmission properties in real-time. This allows the system to maintain stable parallax relationships while adapting to changes in the user's distance from the display, resolving the contradiction between stability and adaptability.
Solution Approach 2:
The patent changes the transmission parameter of the barrier unit dynamically. By adjusting the light transmission state of the barrier unit based on the user's eye position and distance, the system maintains proper parallax stability while becoming adaptable to different viewing conditions, allowing users to move toward or away from the display without losing three-dimensional image quality.
3Reliability
If the system adjusts pixel display based on eye position, then crosstalk is suppressed, but the device complexity increases
Solution Approach 1:
The patent segments the barrier unit into multiple independently controllable regions or units. This segmentation allows the control unit to adjust different portions of the barrier unit independently based on eye position, improving crosstalk suppression while managing complexity through modular control rather than requiring complete system redesign.
Data Source
AI summary
A display device includes: a parallax adjustment unit arranged on a side of a surface of a display unit on which an image is displayed or on a reverse side of the surface, wherein unit areas extending in a first direction are arranged in columns in a second direction in the parallax adjustment unit; and a control unit detecting positions of a right eye and a left eye of a user based on an image of the user, determining a display of pixels of a right eye image and a left eye image to be displayed on the display unit depending on the detected positions of the right eye and the left eye, and determining an area that transmits light among the unit areas included in the parallax adjustment unit depending on the positions of the right eye and the left eye and the display of pixels.