Archive for August, 2011
What is HDTV and How Does it Work?
High definition television (HDTV) is the highest level of digital television broadcasting. Because digital signals stream more data, HDTV has video resolution significantly higher than traditional analog or standard-definition TV (SDTV). HDTV has one to two million pixels per frame. This is approximately five times more than the SDTV signal could transmit. This increased pixel count makes the picture sharper, more realistic and produces the high quality picture on an HDTV.
The aspect ratio of HDTV is similar to Read the rest of this entry »
LCD LED and Plasma HDTV Differences
LCD is an acronym for Liquid Crystal Display. Without going into the technical details, you can think of this technology as having an electronically adjusted filter for each pixel that can vary the color and brightness of the light. This requires a light source behind the LCD element, which is usually a fluorescent tube.
LED stands for Light Emitting Diode. The primary difference between this and the LCD displays is that LED sources replace the fluorescent tube. This results in much less heat Read the rest of this entry »
A Buyer’s Guide for Understanding the Basics of HDTV
High definition television has become more affordable for the average person. This means more and more people are buying high definition televisions and should know the basics of HDTV before buying one. Should they get a plasma, LED or LCD HDTV? Should they purchase a 720p or 1080p television? Which size is the best? Let’s take a look at some basic information about high definition television.
In general, Plasma televisions will be more affordable than LED or LCD televisions. These televisions used to suffer from burn in, but makers of plasma televisions now make plasma televisions that aren’t Read the rest of this entry »