Laser Projection Frame Division for 8K-Class Display
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Solution Overview
Problem
Conventional digital micromirror devices and vibrating lenses are unable to achieve high-resolution image display, such as 8K or higher, due to hardware limitations and the need for matching display panels and drivers, which are costly and difficult to upgrade.
Innovation Solution
A laser projection apparatus with a vibrating device and a circuit architecture that includes a display driving circuit performing frame division on image data to generate sub-images, coupled with a vibrating device to perform vibrations in multiple directions, allowing high-resolution image display without upgrading the digital micromirror device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional digital micromirror devices and vibrating lenses are used, then the device structure is simple and cost-effective, but the image resolution is limited and cannot achieve high-resolution display such as 8K or higher
Solution Approach 1:
The image data is divided into multiple sub-images through frame division processing. Each sub-image is then sequentially projected through the existing digital micromirror device and vibrating lens, avoiding the need to upgrade the hardware while achieving high-resolution display through temporal multiplexing of multiple lower-resolution frames
Solution Approach 2:
The system utilizes the existing vibrating lens by enhancing its vibration control through the frame division method. By dynamically controlling the vibration states during sequential projection of sub-images, the system achieves high-resolution display without hardware upgrades, transforming the static limitation into a dynamic solution
2Manufacturing precision
If the digital micromirror device is upgraded to achieve high-resolution display, then the image resolution is improved, but the cost increases and the device becomes difficult to upgrade
Solution Approach 1:
Instead of physically upgrading the digital micromirror device, the system creates multiple copies of the image data in the form of sub-frames through frame division. These digital copies are sequentially projected using the existing hardware, achieving high-resolution display without physical hardware replacement
Solution Approach 2:
The system changes the temporal parameters of image projection by dividing a single frame into multiple sub-frames projected in sequence. This parameter transformation allows the existing digital micromirror device to effectively display high-resolution images without any hardware modifications
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 the display of high-resolution images by effectively utilizing the existing digital micromirror device and vibrating lens, improving image clarity and resolution without the need for costly upgrades.
Implementation Method 1
control the vibrating device to perform vibrations in multiple directions, so that projection beams corresponding to different image signals of the sub-images are output through vibrations of the vibrating device in sequence
Implementation Method 2
The optical modulating assembly uses a digital micromirror device (DMD) composed of numerous digital micromirrors to modulate an image signal of the illumination beams and reflect it to form a projection beam
Implementation Method 3
The projection lens is configured to receive the projection beams and project the projection beams into an image
Data Source
AI summary
A laser projection apparatus is provided and includes an optical modulating assembly, a vibrating device, a projection lens, and a circuit architecture. The circuit architecture includes an image processing sub-circuit and a display driving sub-circuit. The image processing sub-circuit is configured to perform frame division on image data of an image to be displayed to obtain image signals of a plurality of frames of sub-images to generate a frame division control signal. The display driving sub-circuit is configured to output the image signals of the plurality of frames of sub-images to the optical modulating assembly and output a vibration instruction to the vibrating device based on the output timing of the image signals of the plurality of frames of sub-images, so as to control the vibrating device to perform vibrations, so that the projection beams are output through the vibrating device.