High-Resolution Image Projection via Time-Division Sub-Image Segmentation
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Solution Overview
Problem
Existing projection technologies face challenges in displaying high-resolution images without losing pixel information due to the limited resolution of optical valves in projection devices, such as DLP projectors, which restrict the ability to maintain image quality.
Innovation Solution
The method involves segmenting high-resolution images into multiple frames with resolutions lower than or equal to the optical valve's resolution and displaying these frames in a time-division mode with offset imaging positions, using a beam angle varying device to adjust the imaging positions, ensuring that the total information is preserved and displayed without loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the resolution of the optical valve is increased to display high-resolution images, then the image quality and detail are improved, but the manufacturing complexity and cost increase due to hardware fabrication limitations
Solution Approach 1:
The patent segments a high-resolution image into multiple lower-resolution sub-images that can be displayed sequentially by the optical valve. For example, a 4K image is divided into multiple 1080p sub-images that are displayed in time-division mode with different imaging positions, allowing the optical valve to maintain its original resolution while still achieving high-resolution overall display quality.
2Manufacturing precision
If the resolution of the optical valve is increased to maintain pixel information, then the image quality is improved, but the productivity and update speed of the display system decrease
Solution Approach 1:
The patent employs periodic action by displaying multiple sub-images in a cyclic time-division sequence. Each sub-image is displayed for a specific time period at a specific imaging position, and the cycle repeats. This periodic display approach allows the optical valve to operate at its native refresh rate while collectively presenting high-resolution information over time, maintaining both image quality and update speed.
3Loss of information
If multiple high-resolution images are displayed simultaneously, then the information quantity is improved, but the loss of information occurs due to optical valve resolution limitations
Solution Approach 1:
The patent adds the time dimension to the display process by displaying sub-images sequentially rather than simultaneously. Each sub-image carries a portion of the total pixel information and is displayed at a specific time and position. The human visual system integrates these temporal sequences, effectively reconstructing the high-resolution image without losing pixel information, thus transitioning from spatial simultaneous display to temporal sequential display.
4Manufacturing precision
If the resolution of the optical valve is increased to display detailed images, then the clarity is improved, but the ease of manufacture deteriorates due to process limitations
Solution Approach 1:
The patent creates multiple copies of lower-resolution sub-images that collectively represent the high-resolution original image. Instead of manufacturing a single high-resolution optical valve, the system generates multiple sub-image copies that are displayed sequentially. Each sub-image is a simplified copy that fits the optical valve's capabilities, but together they reproduce the full high-resolution information, avoiding the need for complex high-resolution hardware fabrication.
Data Source
AI summary
This disclosure relates to an apparatus and method for processing a projected image, and a projection display system, the apparatus including: at least one processor; and a memory communicatively connected with the at least one processor, wherein: the memory stores instructions executable by the at least one processor, wherein the instructions are executed by the at least one processor to cause the at least one processor: to obtain an image to be projected, and resolution of the image to be projected; to segment the image to be projected, into N frames of images, resolution of each of which is no higher than resolution of an optical valve, wherein N is a positive integer more than 1; and to display the N frames of images in a time-division mode, wherein imaging positions of the N frames of images are offset from each other.