Projection Display Shifting Device for High Resolution
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Solution Overview
Problem
Current projection display apparatuses face limitations in achieving high resolution due to cost and device size constraints, necessitating an improvement in image resolution for enhanced user experience and application effectiveness.
Innovation Solution
A projection display apparatus and method that utilizes a shifting device and processor to rotate multiple frames along specific angles, allowing the frames to be projected to corresponding positions, thereby increasing the resolution of the projected image beyond the original frames' resolution by combining them through visual persistence.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the resolution of the projection display apparatus is increased, then the image quality and user experience are improved, but the cost and device size increase
Solution Approach 1:
The projection display apparatus segments the imaging function by separating the image source (low-resolution imaging device) from the resolution enhancement function (shifting device). Multiple frames are segmented and projected to different positions, with resolution enhancement achieved through spatial distribution rather than increasing the imaging device's native resolution.
Solution Approach 2:
The shifting device acts as an intermediary between the low-resolution imaging device and the final high-resolution projected image. It receives control signals to rotate and position multiple frames at different locations, effectively mediating the resolution enhancement without requiring the imaging device itself to have high resolution.
2Manufacturing precision
If multiple frames are rotated and projected to different positions, then the resolution of the projected image is enhanced, but the device complexity increases
Solution Approach 1:
The shifting device performs multiple functions: it rotates frames to different angles, positions them at different locations, and controls the timing of frame projection. This multi-functional approach consolidates what would otherwise require separate mechanisms into a single device, reducing overall system complexity while achieving resolution enhancement.
Solution Approach 2:
The shifting device changes the angular parameters of frame projection by rotating to different angles (first angles and second angles). By dynamically adjusting these angular parameters, the system achieves high-resolution projection without physically increasing the imaging device's resolution capabilities.
3Manufacturing precision
If the number of frames is increased to achieve higher resolution, then the image quality improves, but the processing time and complexity increase
Solution Approach 1:
The system employs periodic action by sequentially projecting multiple frames at different angular positions in a systematic sequence. The shifting device rotates to predetermined angles and projects frames in a periodic pattern, which efficiently combines the frames to achieve high resolution while maintaining controlled processing timing.
Solution Approach 2:
The system performs preliminary action by pre-calculating and pre-positioning the shifting device at specific angles before each frame projection. The control signals are prepared in advance to drive the shifting device to the correct angular positions, ensuring that frames are projected to precise locations without real-time adjustment delays.
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
The method effectively enhances the resolution of the projected image by superimposing multiple frames at precise positions, resulting in a higher resolution output, which is eight times the original resolution, while maintaining a compact and cost-effective design.
Implementation Method 1
The processor is configured to output a control signal to drive the shifting device to rotate a plurality of first angles along a first axis or to rotate a plurality of second angles along a second axis, so as to make the plurality of frames outputted to a corresponding plurality of projected positions through the shifting device to form a projected image
Data Source
AI summary
A projecting method includes: outputting, by a projection display apparatus, a projected image to a projection screen through a shifting device, wherein the projected image includes multiple frames; outputting, by a processing circuit, a control signal to drive the shifting device to rotate multiple first angles along a first axis or to rotate multiple second angles along a second axis, wherein combination of the first and the second angles corresponds to multiple projected positions; and when the projection display apparatus outputs multiple frames sequentially, rotating the shifting device sequentially according to the control signal to make multiple frames projected to the corresponding one of projected positions, wherein a number of the first angles or the second angles is at least four.