If you are not passionate about technology and you have no idea what LCD, Plasma, LED, Full HD, HD-Ready, Tuner, maximum rate of contrast mean, then you should not bother with them just now.
The first thing you need to do after you have decided to buy a TV is to check the size of the room where it will be located. Although many are tempted to buy bigger TVs, be very careful with the distance at which you watch television. As a general rule, consider a distance of 1.5-3 times larger than the screen size. For example, for a 32- inch television (81 cm) it’s recommended a 1.3 – 2.4 meters viewing distance. If you still want to have a bit of knowledge in terms of TV, here are some basic words you should know.
1. 16:9 automatically
TV automatically switches from full screen mode 16:9 to receiving a coded signal provided by the transmission.
2. ANSI Lumen
An ANSI lumen is a standard unit for brightness, defined by the American National Standards Institute.
2. Aspect ratio
The ratio between the width and height of the image on the screen. More and more TV sets, especially digital ones, use the widescreen format with 16:9 ratio (1.78:1) to better display the widescreen videos and those on DVD or HDTV transmissions.
Cathode Ray Tube (CRT) is used in monitors with direct TV (live -view), in computer monitors and tri-tube projection equipment.
4. HD compatible
These televisions display High Definition content in both 720p and 1080i, have both analog connectivity and HDMI and have at least 720 lines per screen.
5. Contrast ratio
The ratio between the brightest and the darkest sport projected on the screen by a projector or visible on a screen.
6. Dynamic Image Control
A dynamic focus circuit provides a very clear picture, perfect focus all over the screen. An electronic circuit adjusts diameter produced by each beam section to preserve the shape of the image, the corners and edges of the screen.
Shorthand term for Digital Light Processing. It is a micro-display technology invented by Texas Instruments. DLP is based on a digital device with a micro-mirror (DMD), a chip with millions of microscopic mirrors attached. Each mirror corresponds to one pixel in the projected image. The red, green and blue light filtered through a color wheel is directly alternating DMD, which switches up to 5000 times per second. The reflected light is directed to a lens and there on the screen, creating an image. High -end HDTV projectors use a three – way solution (3 chips) with separated DMD for red, green and blue and precedes the color wheel.
Shorthand term for Digital Visual Interface. This is a high bandwidth connection that carries digitized RGB picture information and can support copy protection methods. DVI specifications allows the display equipment to agree on the best picture size and resolution for the highest image quality.
9. Digital Comb Filter (DCF)
TV signals very often combine black and white and color information in one signal. A digital comb filter separates color information and black and white image, providing well defined details and clear image without vibration for fine details.
10. 3D digital comb filter PAL
Provides brightness and chrominance separation, comparing several frames and motion of the image.
11. Flat -panel TV
An ultra -thin TV, relatively easy – especially those mounted on the wall. Flat -panel TVs are using either current plasma technology or LCD.
12. Electronic Program Guide (EPG)
A Smart TV guide with menu systems for program location (depending on availability of transmission)
Shorthand term for High -Definition Multimedia Interface. Similar to DVI (but using much smaller connectors), a HDMI interface transfers uncompressed digital signals with copy protection and multichannel audio. Using an adapter, HDMI is compatible with most current DVI connections.
Shorthand term for High -Definition Television. Often used incorrectly as a generic description of all digital TVs, HDTV specifically refers to the highest resolution formats of all 18 digital TV formats. Although it is not 100 % approved by producers, traders, journalists, and so on, it’s generally regarded as the true HDTV format with 1080 – line interlaced (1080i) or 720 – line progressive (720p).
15. OLED TV
A TV display technology based on the characteristics of organic light-emitting diode, which enable the best picture quality, in thinnest of all displays.