Light Field Display Micro Lens Array 3D Spatial Accuracy
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional 3D display technologies, such as stereo and multiview methods, fail to accurately express 3D spatial information, leading to a lack of immersion and realism in virtual environments.
Innovation Solution
A light field display apparatus comprising a display panel with a micro lens array, where sub-pixels of primary colors are arranged in a matrix and micro lenses are positioned to combine light from specific sub-pixel positions, creating a natural 3D image without emphasizing a specific color, allowing for a more immersive and realistic 3D experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional stereo or multiview methods are used for 3D display, then the display structure is simple, but the accuracy of 3D spatial information expression is insufficient
Solution Approach 1:
The display is segmented into multiple sub-pixels (red, green, blue) arranged in a matrix, with a micro lens array positioned above them. Each micro lens corresponds to specific sub-pixels and directs light from different sub-pixel positions to different spatial locations, enabling accurate 3D spatial information expression through divided optical paths
Solution Approach 2:
The patent transitions from conventional 2D display to 4D light field display by adding spatial dimension control. Micro lenses redirect light from sub-pixels in multiple directions (up, down, left, right, diagonal), creating light rays that converge at different 3D spatial positions, thereby expressing accurate 3D spatial information
2Reliability
If micro lenses are arranged to combine light from sub-pixels of different colors, then realistic 3D image is achieved, but color balance may be compromised
Solution Approach 1:
Different micro lenses are assigned to combine light from different combinations of sub-pixels based on their positional requirements. For example, one micro lens combines red, green, and blue sub-pixel light to form white light, while another combines only red and green to form yellow light. This local customization of light combination ensures both realistic 3D image formation and accurate color balance
Solution Approach 2:
The patent utilizes selective combination of light from sub-pixels of different colors (red, green, blue) to produce various colors including white. By controlling which sub-pixel lights are combined at each micro lens position, the system achieves accurate color balance while maintaining realistic 3D image formation
3Reliability
If light from sub-pixels is combined to form white light, then natural 3D image is achieved, but specific color emphasis is lost
Solution Approach 1:
The patent applies local quality by allowing different micro lenses to have different light combination characteristics. Some micro lenses combine all three primary colors (red, green, blue) to form white light for natural appearance, while others combine only specific color pairs (e.g., red and green for yellow) to maintain color intensity where needed. This resolves the contradiction by making color emphasis location-dependent rather than uniform
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
The light field display apparatus effectively generates a realistic 3D image that appears to change with viewer movement, providing a more immersive experience compared to conventional 3D display systems by accurately expressing 3D spatial information through the combination of light from sub-pixels of different colors.
Implementation Method 1
the light of the sub-pixels corresponding to same positions of three or four micro lenses which are make contact to each other, combines to form white light
Implementation Method 2
The micro lens array is disposed on the display panel. The micro lens array includes a plurality of micro lenses
Data Source
AI summary
A light field display apparatus includes a display panel and a micro lens array. The display panel includes a plurality of sub-pixels arranged in a matrix. The micro lens array is disposed on the display panel. The micro lens array includes a plurality of micro lenses. Each of the plurality of sub pixels emits light of a single color, of a set of primary colors. The arrangement of the micro lens array, relative to the display panel, causes the light of certain sub pixels, of the plurality of sub pixels to be emphasized. The micro lens array is arranged, relative to the display panel, so that sub pixels of each primary color are emphasized to a same extent.