Vibrating Lens Projection Apparatus for High-Resolution Image Superimposition
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Solution Overview
Problem
Projection apparatuses face challenges in displaying high-resolution images when the image resolution exceeds the capabilities of the light valve, as they must remove pixels to match the light valve's resolution, resulting in a lower quality projected image.
Innovation Solution
A projection apparatus and method that decompose high-resolution images into sub-images with resolutions matching or below the light valve's capabilities, using a display control circuit to control a light valve and vibrating lens to reflect beams of primary colors, and transmit vibrating lens current control signals to deflect beams, forming a projected image through superimposition of sub-images.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the projection apparatus directly projects high-resolution images without decomposition, then the image quality would be maintained, but the light valve cannot handle the resolution and pixel removal is required
Solution Approach 1:
The high-resolution image is divided into multiple sub-images with resolutions that the light valve can handle. The display control circuit decomposes the original high-resolution image into several lower-resolution sub-images, which are then sequentially projected onto the light valve. This segmentation allows the system to overcome the light valve's resolution limitation while still achieving high-resolution projection through temporal multiplexing.
Solution Approach 2:
The system uses periodic action by sequentially projecting multiple sub-images in a repeating cycle. Each sub-image is projected in succession, and the human visual system integrates these sequential projections into a single high-resolution image. This periodic projection approach allows the light valve to display lower-resolution frames while the overall system achieves higher resolution through time-multiplexed display.
2Ease of operation
If pixels are removed to match the light valve's resolution, then the projection is feasible, but the displayed image quality deteriorates
Solution Approach 1:
Instead of removing pixels from a single high-resolution image, the system segments the image into multiple sub-images, each containing a portion of the original image data. This allows all original image information to be preserved across the sub-images, which are then displayed sequentially. The light valve doesn't need to downsample or remove pixels because each sub-image is designed to fit its resolution capabilities.
Solution Approach 2:
The image decomposition into sub-images is performed in advance by the display control circuit before projection. This preliminary processing organizes the high-resolution image data into multiple lower-resolution sub-images that are optimized for the light valve's capabilities, ensuring that no image quality is lost during the projection process.
3Manufacturing precision
If multiple sub-images are projected sequentially, then high resolution is achieved, but the projection process becomes more complex
Solution Approach 1:
The light valve is used for multiple functions by displaying different sub-images in sequence. The same physical light valve component handles all sub-images, and the system reuses the same projection optics and display pathway for each sub-image. This multi-functionality approach achieves high-resolution projection without requiring multiple separate projection systems.
Solution Approach 2:
The display control circuit acts as an intermediary that manages the complexity of processing and coordinating multiple sub-images. It handles the decomposition of the high-resolution image, timing synchronization, and sequential routing of sub-images to the light valve. This intermediary component centralizes the control logic, making the overall system more manageable despite the increased processing requirements.
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 superimposing sub-images with lower resolutions, effectively improving the display quality and achieving higher resolution projections than the light valve could handle alone.
Implementation Method 1
control, according to primary color parameters of pixels in each sub-image, the light valve to sequentially reflect beams corresponding to the plurality of sub-images to the vibrating lens
Implementation Method 2
the vibrating lens deflects beams corresponding to at least one sub-image, thereby forming a projected image
Data Source
AI summary
A projection apparatus includes a light source assembly, a display control circuit, a light valve, a vibrating lens drive assembly, and a vibrating lens. The display control circuit is configured to obtain a plurality of sub-images; in a process of emitting beams of three primary colors by the light source assembly to the light valve sequentially, control, according to primary color parameters of the pixels in each sub-image, the light valve to sequentially reflect beams corresponding to the plurality of sub-images to the vibrating lens; and in a process of projecting each sub-image, transmit a vibrating lens current control signal corresponding to the sub-image to the vibrating lens drive assembly. The vibrating lens drive assembly is configured to provide at least one vibrating lens driving current to the vibrating lens according to the vibrating lens current control signal corresponding to the sub-image.