3D Display Light Direction Adjustment via Dynamic Shutter Patterns
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing 3D image display technologies, such as parallax barrier-type and lenticular-type displays, are limited in their ability to adjust the viewing direction and mode, restricting the flexibility in displaying 2D and 3D images on the same screen without compromising image quality.
Innovation Solution
A 3D image display apparatus and method that includes an input unit for generating 2D and 3D image regions, a mask pattern forming unit, a shutter pattern forming unit, and a light emission unit with adjustable light direction, using a backlight with cells and independently controllable light sources and shutters to selectively display 2D and 3D images by adjusting light transmittance and direction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed barrier or lens arrangement is used in parallax barrier-type or lenticular-type displays, then the structure is simple and manufacturing is easier, but the viewing direction and mode cannot be adjusted
Solution Approach 1:
The patent applies the dynamics principle by making the barrier pattern and shutter pattern adjustable rather than fixed. The controller can dynamically change the mask pattern corresponding to the 3D image region and the shutter patterns for left and right eyes, allowing the viewing direction and mode to be adjusted according to different observation positions and requirements.
Solution Approach 2:
The patent segments the display region into a 2D image region and a 3D image region, with independent control over each region. The mask pattern forming unit creates a barrier pattern specifically for the 3D region, while the shutter pattern forming unit generates separate shutter patterns for left and right eyes, allowing independent adjustment of viewing directions for different regions.
2Adaptability or versatility
If the period, focal length, and direction of the barrier or lens are fixed, then the manufacturing precision requirement is reduced, but the locations at which 3D images may be observed are fixed and cannot be selected
Solution Approach 1:
The patent implements dynamic adjustability of the barrier pattern period and direction through the mask pattern forming unit. Instead of fixing the period and focal length of the barrier, the system can dynamically adjust these parameters by changing the mask pattern, allowing observation from multiple locations and angles without requiring high manufacturing precision for fixed parameters.
Solution Approach 2:
The patent changes the parameters of the barrier pattern (period, direction, focal length) dynamically through software control rather than through precise manufacturing. The mask pattern forming unit can adjust these parameters by generating different mask patterns, allowing the system to adapt to different observation locations without requiring high manufacturing precision.
3Adaptability or versatility
If a single fixed barrier or lens configuration is used, then the device complexity is reduced, but the ability to display both 2D and 3D images with adjustable viewing modes is limited
Solution Approach 1:
The patent segments the display functionality into independent 2D and 3D modes with separate processing paths. The mask pattern forming unit creates a barrier pattern for the 3D region, while the shutter pattern forming unit generates eye-specific patterns. This segmentation allows flexible switching between 2D and 3D modes and adjustable viewing directions without requiring a completely different device configuration.
Solution Approach 2:
The patent implements multi-functionality by using a single display device that can perform both 2D and 3D image display with adjustable viewing modes. The light emission unit, in conjunction with the adjustable mask and shutter patterns, serves multiple functions: displaying 2D images, displaying 3D images with fixed viewing direction, and displaying 3D images with adjustable viewing direction, eliminating the need for multiple specialized devices.
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
Enables flexible and high-quality simultaneous display of 2D and 3D images on the same screen, allowing for adjustable viewing directions and modes without reducing image resolution, enhancing user experience by accommodating various content types.
Implementation Method 1
The light emission unit may include a plurality of reflection units arranged in a two-dimensional manner along a curved surface, each of the plurality of reflection units having a curved portion, and a plurality of light sources, each of the plurality of light sources corresponding to one of the plurality of reflection units. Each of the plurality of reflection units may reflect the light emitted from each of the plurality of corresponding light sources as collimated light.
Implementation Method 2
The light emission unit may include a plurality of light sources; a light guide plate to guide light emitted from the plurality of light sources, and a prism array disposed on the light guide plate to adjust an inclination of a refracting surface according to an electric signal
Implementation Method 3
a mask pattern forming unit to form a mask pattern corresponding to the 3D image region generated by the input unit
Implementation Method 4
a shutter pattern forming unit to form a first shutter pattern for a first eye and a second shutter pattern for a second eye, according to the mask pattern
Data Source
AI summary
A 3D image display apparatus and a 3D image display method are provided. The 3D image display apparatus generates a 2D image region and a 3D image region, forms shutter patterns for the 3D and 2D image regions, and adjusts a light emitting direction according to the shutter patterns. Accordingly, the 2D and 3D images may be selectively displayed on one screen.