Light Field Display Lenslet Tilt Control for Depth of Field
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Solution Overview
Problem
Current light field display technologies face challenges in efficiently adjusting the display quality of objects within a scene, particularly due to the complexity of re-determining the display plane to change the depth of field range, which requires extensive computation and affects display speed.
Innovation Solution
The method involves tilting specific lenslets within the lenslet array of a light field display device based on the current depth of field range and depth distribution sub-regions to adjust the display image distance, allowing the virtual image to be distributed within the desired depth of field range, thereby improving the clarity of objects without complex computations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the display plane is re-determined to change the depth of field range, then the display quality can be adjusted, but the computational complexity increases and display speed decreases
Solution Approach 1:
The patent changes the tilt angle parameter of lenslets in the lenslet array to adjust the depth of field range and display quality. By varying the tilt angle of specific lenslets, the system can shift the focal plane and control which depth regions are in focus, thereby adjusting display quality without complex recomputation of the entire light field
2Manufacturing precision
If the display plane is re-determined to change the depth of field range, then the display quality can be adjusted, but the display speed decreases
Solution Approach 1:
The patent implements dynamic adjustment of lenslet tilt angles in real-time to change the depth of field range. The lenslets can be dynamically tilted to different angles based on the desired focus depth, enabling fast switching between different display quality modes without lengthy computational processes, thus maintaining high display speed
3Measurement precision
If lenslets are tilted to adjust display image distance, then the clarity of objects is improved, but the device complexity increases
Solution Approach 1:
The patent segments the lenslet array into multiple independently controllable lenslets, where each lenslet can be tilted to a different angle. This segmentation allows selective adjustment of specific lenslets to target particular objects or regions in the scene, improving the clarity of specific objects while keeping the control mechanism modular and manageable through individual lenslet actuation
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 approach simplifies the adjustment of display quality by tilting lenslets, reducing computational complexity and enhancing the clarity of objects within the light field display, while maintaining efficient control over the display image distance.
Implementation Method 1
tilting a first lenslet with respect to an original plane of a lenslet array of a light field display device according to at least a display depth of field (DoF) range of the light field display device and the depth distribution sub-region
Data Source
AI summary
Embodiments of the present application disclose a light field display control method and apparatus and a light field display device. The light field display control method comprises: determining a partial depth distribution sub-region of content according to at least depth distribution information of the content; and tilting a first lenslet with respect to an original plane of a lenslet array of a light field display device according to at least a display depth of field (DoF) range of the light field display device and the depth distribution sub-region, wherein the first lenslet is a lenslet that is in the lenslet array and affects display of a first object, and the first object is a part, which is located in the depth distribution sub-region, of the content. The present application can improve display quality of an object, which is located in a partial depth distribution sub-region, of content to be displayed or content being displayed.