Ultravision International Blog: Dont be Fooled by Contrast Ratio Claims

Dont be Fooled by Contrast Ratio Claims

In the LED display industry, image contrast represents emitted light images on a black field, and the blacker the surrounding area the more brilliant the colors appear. The ...
William Y. Hall, Thursday, February 11, 2010
Ultravision International Blog: LED Displays and the Dangers of Asian Manufacturers

LED Displays and the Dangers of Asian Manufacturers

Demonstrating complete disregard for specifications of LED display manufacturing, Asian manufacturers continue to disappoint American buyers For over 15 years Ultravision ...
William Y. Hall, Thursday, February 11, 2010
Ultravision International Blog: What is an LED?

What is an LED?

Light Emitting Diodes (LEDs) are plastic capsules containing a specific chemical compound on a microscopic wafer that emits light when subjected to an electrical current. A ...
William Y. Hall, Wednesday, February 10, 2010
Ultravision International Blog: What is a Pixel?

What is a Pixel?

Individual LED's are available in many grades of quality and shades of color. Ultravision LED uses high grade red, green, and blue. When red, green and blue LEDs are ...
William Y. Hall, Wednesday, February 10, 2010
Ultravision International Blog: What is Contrast Ratio?

What is Contrast Ratio?

"Contrast ratio" represents the difference between the brightest whites and darkest blacks that a LED panel can display. But claimed contrast ratios can be misleading. It is ...
Ultravision LED, Monday, February 8, 2010
Ultravision International Blog: Prevent Your Screen From Looking Pink

Prevent Your Screen From Looking Pink

Have you ever noticed that large LED displays appear pink, when the color should be white? Finally, there is a way for advertisers to resolve this frustrating problem. Cree ...
Ultravision LED, Monday, February 8, 2010
Ultravision International Blog: LED display pixel type?

LED display pixel type?

The basic elements of an LED (light emitting diode) display are the LEDs that make up the pixel. The minimum requirement for a pixel to produce a full color image is a Red, ...
Ultravision LED, Wednesday, December 2, 2009