Multi-Focus 3D Display Timing for Real Depth and Full Resolution
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Solution Overview
Problem
Current naked-eye 3D display technologies based on binocular parallax fail to generate real depth information, resulting in poor 3D display effects and low image resolution due to the separation of images for the left and right eyes, which are still 2D and lack actual focal depth.
Innovation Solution
A display apparatus and method that utilizes a multi-focus image generation unit controlled by a time sequence control unit to generate 3D image blocks with different depth information, enhancing the display effect and resolution by implementing real depth distribution through time sequence control without reducing image resolution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If naked-eye 3D display technology based on binocular parallax is used to separate images for left and right eyes, then a 3D viewing effect can be achieved, but real depth information cannot be generated and the display effect is poor
Solution Approach 1:
The patent applies dynamics by making the focal length of the imaging unit adjustable and changeable over time. The control unit dynamically adjusts the focal length to different values corresponding to different depth planes, enabling the system to generate images at multiple focal distances rather than a fixed focal plane. This dynamic adjustment allows the display to present images that correspond to different depth positions, thereby providing real depth information to the viewer's eyes.
Solution Approach 2:
The patent changes the optical parameter (focal length) of the imaging unit to generate images at different depths. By varying the focal length parameter, the system can create image blocks corresponding to different depth planes. This parameter change enables the generation of multi-focus images that contain genuine depth information, resolving the limitation of traditional binocular parallax methods that only provide 2D images.
2Ease of operation
If the display panel separates left eye and right eye by dividing an area, then visual images can be separated for each eye, but the final display image resolution becomes low
Solution Approach 1:
Instead of separating images for left and right eyes in the spatial dimension (dividing the display area), this patent uses the time dimension to present different focal length images. The imaging unit sequentially generates image blocks at different focal distances, and the human visual system integrates these temporal sequences into a perceived 3D image. This dimensional shift from spatial separation to temporal sequencing preserves full resolution while achieving image separation.
Solution Approach 2:
The system employs periodic action by cyclically switching between different focal length settings in the imaging unit. The control unit generates a sequence of control signals that periodically adjust the focal length to different values, creating a time-multiplexed display of multi-focus images. This periodic adjustment allows the system to present multiple depth planes sequentially, which the human eye perceives as simultaneous 3D depth information without requiring spatial division of the display area.
Data Source
AI summary
A display apparatus and method are provided. The display apparatus includes a multi-focus image generation unit and a time sequence control unit. The multi-focus image generation unit is connected to the time sequence control unit. The time sequence control unit is configured to: generate a plurality of time sequence instructions that belong to a first switching period, and send the plurality of time sequence instructions that belong to the first switching period. The multi-focus image generation unit is configured to: receive the plurality of time sequence instructions that belong to the first switching period from the time sequence control unit, and generate a plurality of corresponding 3D image blocks at different distances based on the plurality of time sequence instructions. The plurality of 3D image blocks respectively corresponds to a 3D image and include different depth information for display in the first switching period.