What does an LED video processor do?

Release Date:

2018-10-22 10:51

Source:

www.yisitelens.com

Principle of LED Video Processors During operation, an LED video processor typically performs the following processing steps: 1. Resolution Scaling: In general, image signal sources—such as Blu-ray DVDs, computers, and HD playback devices—output signals at fixed resolutions that conform to standards like VESA, ITU, and SMPTE. In contrast, LED displays are composed of modular panels, allowing their effective resolution to be virtually any value. The video processor converts these diverse input resolutions into the LED display’s native physical resolution. 2. Color Space Conversion:
Principle of LED Video Processors
 
　　During operation, an LED video processor typically performs the following processing steps:
 
　　1. Resolution Scaling: Typically, image signal sources—such as Blu-ray DVDs, computers, and HD media players—output signals at fixed resolutions in accordance with standards like VESA, ITU, and SMPTE. In contrast, LED displays are composed of modular panels, allowing their resolution to be virtually any value. A video processor converts these diverse input resolutions into the LED display’s native physical resolution.
 
　　II. Color Space Conversion: LED displays have a very wide color gamut, whereas most image signals use relatively narrow color spaces (such as NTSC). To ensure that LED displays deliver excellent image quality, color space conversion is essential.
 
　　3. Enhanced Bit Depth: Today, LED displays have already achieved grayscale levels of 16 bits or even 17 bits, yet most input signal sources remain at only 8 bits. Consequently, in step with the advent of the high-definition display era, the adoption of 10-bit and even 12-bit processing technologies in video processors has become an inevitable trend.
 
　　4. Scaling: During the resolution conversion process, images must be scaled—whether increasing or decreasing the resolution—to ensure the entire image is displayed on the screen.
 
　　V. Image Processing and Enhancement Technologies: Since the 1920s, digital image processing has evolved significantly, giving rise to a wealth of patented technologies. For example, Faroudja Laboratories’ Emmy‑award‑winning suite of patents—including DCDi, ACC2, and ACM3D—has markedly enhanced the visual quality of images.
 
 
 

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Keywords:

LED, lens, image, resolution, display, bit, video processor, screen, technology

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