Projection Apparatus Frame Refresh Rate Conversion Chip
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current 4K projectors experience a delay phenomenon due to a time interval of 83.2 ms in processing image signals from 1080P resolution and 60 Hz frame refresh rate, affecting the quality of displayed images, especially in applications like gaming where immediate reaction is required.
Innovation Solution
A projection apparatus equipped with a frame refresh rate conversion chip and control circuit that adjusts the resolution and frame refresh rate of projected images, using a spatial light modulation circuit to reduce delay time by converting video signals and controlling the optical actuator for optimal image projection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If the 4K projector processes image signals with 1080P resolution and 60 Hz frame refresh rate, then the projector can display images, but the processing delay time is 83.2 ms which causes image delay phenomenon
Solution Approach 1:
The system performs preliminary action by pre-processing video signals at higher frame refresh rates (e.g., 240 Hz) before projection. The frame refresh rate conversion chip converts the pre-processed high refresh rate signals to match the display requirements, reducing the overall processing delay from 83.2 ms to 14.6 ms. This preliminary processing at higher refresh rates enables faster response in gaming and other time-sensitive applications.
2Adaptability or versatility
If the projector maintains fixed resolution and frame refresh rate settings, then the device structure is simple, but it cannot adapt to different application scenarios such as gaming requiring high frame refresh rates
Solution Approach 1:
The system implements dynamics by making the frame refresh rate adjustable and adaptable to different application scenarios. The frame refresh rate conversion chip dynamically converts video signals between different frame refresh rates (e.g., 60 Hz, 120 Hz, 240 Hz) based on the specific application requirements. This dynamic adjustment capability allows the projector to adapt to gaming, video playback, and other scenarios without requiring multiple fixed-configured devices, achieving versatility through a single adaptable system.
Data Source
AI summary
A projection apparatus and a projection method thereof are provided. The projection apparatus includes a frame refresh rate conversion chip, a spatial light modulation circuit and a control circuit. The frame refresh rate conversion chip performs frame refresh rate conversion on a first video signal to generate a second video signal. The control circuit is coupled to the frame refresh rate conversion chip and the spatial light modulation circuit, and adjusts a resolution and a frame refresh rate of a projected image generated by the spatial light modulation circuit according to a frame refresh rate of the second video signal.