3D Display Device Eye Tracking Crosstalk Reduction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing three-dimensional display systems face challenges in ensuring that image light appropriately reaches the user's eyes, leading to crosstalk and difficulty in viewing proper three-dimensional images, especially when the user's eye position changes.
Innovation Solution
A three-dimensional display device comprising a display panel, an optical element, a controller, and a communication unit that captures images of both eyes and determines the visible subpixels based on calibration patterns, adjusting the display to minimize crosstalk by ensuring the left-eye image is viewed by the left eye and the right-eye image is viewed by the right eye.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an optical element is used to direct image light to the user's eyes in a three-dimensional display system, then the three-dimensional display function is achieved, but crosstalk occurs when the user's eye position changes, degrading image quality
Solution Approach 1:
The system performs preliminary calibration by capturing images of the user's eyes and determining the correspondence between display subpixels and eye positions before actual three-dimensional display. This preliminary action establishes a mapping relationship that is used during normal operation to direct appropriate images to each eye, preventing crosstalk from occurring during the main display function.
Solution Approach 2:
The system changes the display parameters by selectively controlling which subpixels display images for the left eye versus the right eye based on the calibrated eye position data. By adjusting the display output according to the determined subpixel-eye correspondence, the system adapts the three-dimensional display to the user's specific eye positions, eliminating crosstalk.
2Device complexity
If the display system uses a fixed subpixel configuration for left and right eye images, then the display structure is simple, but it cannot adapt to changes in user eye position, causing crosstalk
Solution Approach 1:
The system performs preliminary calibration by capturing images of the user's eyes and determining the correspondence between display subpixels and eye positions before actual three-dimensional display. This preliminary action establishes a mapping relationship that is used during normal operation to direct appropriate images to each eye, preventing crosstalk from occurring during the main display function.
Solution Approach 2:
The system transitions from a static, fixed subpixel configuration to a dynamic configuration that adapts to the user's eye positions. By using the calibrated data to dynamically determine which subpixels display images for each eye, the system gains adaptability to different eye positions while maintaining a relatively simple overall structure.
3Reliability
If the system captures and processes eye images to determine visible subpixels, then crosstalk is reduced and three-dimensional image quality is improved, but the system complexity and calibration time increase
Solution Approach 1:
The system performs preliminary calibration by capturing images of the user's eyes and determining the correspondence between display subpixels and eye positions before actual three-dimensional display. This preliminary action establishes a mapping relationship that is used during normal operation to direct appropriate images to each eye, preventing crosstalk from occurring during the main display function.
Solution Approach 2:
The system uses the user's own eye images to automatically determine the optimal subpixel configuration for that user. By capturing images of the user's eyes and processing them to find the correspondence with display subpixels, the system performs self-calibration without requiring external intervention or complex manual adjustment procedures.
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 allows users to properly view three-dimensional images with reduced crosstalk, even when their eye position changes, by accurately determining and displaying the appropriate subpixels for each eye, enhancing the viewing experience.
Implementation Method 1
an optical element configured to define a propagation direction of image light emitted from the display panel
Implementation Method 2
The optical member is configured to reflect the image light emitted from the three-dimensional display device, toward the first eye or the second eye
Data Source
AI summary
A three-dimensional display device includes a display panel, a controller, and a communication unit. The display panel is configured to display an image. An optical element is configured to define a propagation direction of image light emitted from the display panel. The communication unit is configured to receive a captured image of first eye and second eye different from the first eye, of a user. The controller causes the display panel to display a calibration image. The controller is configured so that, based on cornea images of different parts of the calibration image in the captured image that are viewed with the first eye and the second eye of the user, respectively, a parallax image is displayed on the display panel.