DLP Projector Frame Rate Upconversion and Motor Noise Reduction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
DLP projectors with high resolution, such as 4K, are limited in supporting image frame rates higher than 120 Hz due to hardware architecture limitations, resulting in restricted usage and potential high motor noise at higher frame rates.
Innovation Solution
The projector employs an image converting module to insert supplement images into the original image sequence, upconverting the frame rate to a higher rate supported by the processing module, while the processing module ignores these supplement images to maintain the original frame rate, and utilizes a light converting module with multiple groups to reduce motor rotation speed and prevent noise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the processing module processes the supplement image sequence with the higher second frame rate, then the image frame rate is improved, but the motor rotation speed increases causing excessive noise
Solution Approach 1:
The patent extracts and removes the supplement images from the image sequence after they have been used to increase the frame rate. The processing module processes only the original images at the first frame rate, ignoring the supplement images, thereby maintaining the original frame rate and preventing motor noise while still benefiting from the temporary frame rate increase during processing
Solution Approach 2:
The supplement images are inserted into the image sequence before processing to temporarily increase the frame rate to a level supported by the processing module. This preliminary action allows the system to handle high frame rates without actually outputting at that rate, thus avoiding motor noise
2Manufacturing precision
If the projector supports high resolution (4K), then the image quality is improved, but the supported image frame rate is limited to below 120 Hz
Solution Approach 1:
The patent changes the frame rate parameter by inserting supplement images to create a supplement image sequence with a second frame rate that is higher than the first frame rate. This allows the processing module to process high resolution images at a supported frame rate while maintaining the ability to output at the original frame rate
Data Source
AI summary
A projector includes an image converting module, a processing module and an imaging module. The image converting module receives an original image sequence with a first frame rate. The image converting module inserts a plurality of supplement images into the original image sequence per second to output a supplement image sequence with a second frame rate, wherein the second frame rate is larger than the first frame rate. The processing module is coupled to the image converting module. The processing module receives the supplement image sequence from the image converting module. The processing module ignores the supplement images and processes and outputs the original image sequence. The imaging module is coupled to the processing module. The imaging module receives the original image sequence from the processing module and outputs the original image sequence by the first frame rate.