LCD TVs

Introduction

LCD stands for "liquid crystal display", and builds up a picture by the use of millions of pixels. LCD displays are renowned for their small electric usage, low heat production, and picture clarity and sharpness.

The technology can still have it's drawbacks, blurring at non-native resolutions, lower contrast ratios than plasma screens which means it cannot always produce blacks as deep. They also cannot display as many colours as plasma screens, and have longer response times which can produce a ghosting effect.

Dead pixels are also a common occurrence with LCD displays. That said, high end LCD TVs are rectifying these issues, and as time passes you can expect them to be nonexistent.

Articles

What to look for in a new TV

A good response time, this is a drawback with LCD's. To avoid trailing images find a screen with the fastest response time possible. You will notice a screen with a slow response time when fast moving sequences occur, this is the moment trailing will be most prominent.

A viewing angle up to 178 degrees. In the past LCD's have been prone to poor viewing angels compared to CRT TVs.

A low energy consumption level. Most LCD's by their nature use a lower amount of electricity compared to CRT. It's also useful if the television has a energy saving feature, which automatically adjusts the brightness level so as to reduce the energy consumption.

A resolution of 1080p is HD Ready, this means your TV has upto 1080 progressive lines of pixels, generally the more lines and pixels a TV supports the better the picture detail will be.

A standard native resolution of 1920x1080, most LCD have just one resolution they operate best at.

A contrast ratio of 5000:1 and above, the larger the ratio the greater the difference in colours between the lightest white and the darkest black.

Digital video noise reduction, which improves image quality because it lowers the amount of static produced on screen.

Supports a connection to a personal computer, you can then play your PC games on a huge screen, which has never been possible before.

Plenty of inputs, like Scart, S-Video, Component video, AV, HDMI and DVI.

Jargon Buster

Digital Noise Reduction

If the signal you receive is weak, and you require a boaster to receive a analogue signal then this can help reduce static and ghosting. Or the remote producing an infrared signal.

Digital comb filter

Ensures sharp picture detail by contrasting the different colours.

PAL / NTSC progressive scan

Maximises the quality of the digital pictures, making sure the clarity is at a premium.

Privacy Policy

The information contained within this site is general in nature, and may not be applicable to all vacuum cleaners. We can also not guarantee the accuracy of the information.