2006-08-02 20:26:43 · 3 answers · asked by JC 1 in Consumer Electronics ➔ TVs
Screens available today can be broadly classified into four categories (based on their screen curvature and flatness) beginning from the most curved to the most flat: 1) Regular (Conventional), 2) Semi Flat (FST and FFST) and 3) Truly Flat screen (Flat, True Flat, Super Flat) and 4) Plasma and Projection.
REGULAR (CONVENTIONAL) TV
Regular TV tube is without any special modifications. It is also called the conventional television. It has all the normal features of adjustable colour, contrast and brightness. It comes in sizes from 14 inches to 29 inches. The important factors that should be kept in mind when purchasing are the picture quality and the clarity, noise interference, if any and the number of channels supplied. The standard television comes equipped with features such as auto programming, which lets you set all the stations automatically, super and hyper band tuner, timer, DVD/LD/VCD compatibility, child lock and a host of other features.
SEMI-FLAT TELEVISION
A Semi Flat TV includes the FST (Flat Square Tube) and the FFST (Full Flat Square Tube). These have significantly flattened regular (conventional) screens, however not completely flat. The picture distortion and glare gets reduced to some extent. The most widely used models in this category are the 21-inch televisions. It comes in sizes upto 80 inches. An FFST has a glass tube, which is either spherical, or cylindrical, or flat in shape, each having a different quality of image. Obviously, the flatter the screen, the better the view. FFST is a technology that reduces reflections and distortion into the edges of the screen, resulting in a more consistent and easy to watch picture. They are the most widely preferred by customers, because of their wide range in quality and price.
TRULY FLAT TELEVISION
The Truly Flat tubes have a completely flat screen. These includes Flat, Super Flat and True Flat televisions. The screen is completely flat, without any visible curves or bends. The Truly Flat TVs reduce the glares and give a wider viewing angle, without any distortions and thus provide with a better viewing experience.
PROJECTION TELEVISION:
Plasma and Projection TVs
Plasma and Projection TVs are the latest in TV technology. In Plasma displays, the TV screens are made perfectly flat and very thin with zero curvature. This eliminates glare, i.e. reflection on the TV screen from the room lightning, giving perfect focus, perfect image uniformity without any image distortion and as such is good for the eyes, unlike CRT screens which will always have a certain amount of distortion. Projection TVs help you enjoy a theatre like experience within the ambience of your home.
They have large screens and are available in two types: front and rear projection. Rear Projection TVs provide excellent viewing from any angle.
Front Projection TVs are not available in the Indian market at present. These come with a separate screen and a projector. Your room size is crucial to the buying of this set, as it requires a certain amount of distance to be maintained between the projector and the screen. Great picture quality, a larger viewing screen angle, and a real life picture simulation makes it stand out from other televisions.
DIGITAL TV:
Most viewers receive their TV signals via cable or by an analog signal sent through the air. However, an analog system maybe subject to distortions and transmission problems. The DTV technology, however, receives a television signal made up of a series of compressed codes that are unscrambled by a decoder (either built in to the TV or in a separate receiver) to produce a crisper, cleaner image and better sound. The digital signal transmission will soon become the standard for all transmissions the world over.
SDTV's (Standard Definition Television):
These are not directly capable of receiving digital transmissions, but have a component input that can be connected to a digital TV receiver/decoder. They are similar to high quality standard TV's. Most SDTV sets are direct-view, not projection.
HDTV's (High Definition Television):
They are the next generation of TV's and have not yet made their appearance in the Indian Market. Generally speaking, they have almost double the resolution of a SDTV
HDTV i.e. high definition television is a the latest television technology providing wide-screen picture quality similar to a 35mm film, along with compact disc (CD) sound quality. Compared to standard television, the HDTV image has twice the viewing space, both vertically and horizontally and is 25% wider. The fine-grained HD picture contains five times more information than does the standard television picture and is accompanied by multi-channel, CD quality sound. The difference in video and sound quality is dramatic too. though this technology is yet to catch on, it seems to be the best possible option.
Hope this information helps.
2006-08-02 20:39:56 · answer #1 · answered by Bond 000 3 · 1⤊ 0⤋
A better Answer would be. Screens available today can be broadly classified into four categories (based on their screen curvature and flatness) beginning from the most curved to the most flat: 1) Regular (Conventional), 2) Semi Flat (FST and FFST) and 3) Truly Flat screen (Flat, True Flat, Super Flat) and 4) Plasma and Projection.
REGULAR (CONVENTIONAL) TV
Regular TV tube is without any special modifications. It is also called the conventional television. It has all the normal features of adjustable colour, contrast and brightness. It comes in sizes from 14 inches to 29 inches. The important factors that should be kept in mind when purchasing are the picture quality and the clarity, noise interference, if any and the number of channels supplied. The standard television comes equipped with features such as auto programming, which lets you set all the stations automatically, super and hyper band tuner, timer, DVD/LD/VCD compatibility, child lock and a host of other features.
SEMI-FLAT TELEVISION
A Semi Flat TV includes the FST (Flat Square Tube) and the FFST (Full Flat Square Tube). These have significantly flattened regular (conventional) screens, however not completely flat. The picture distortion and glare gets reduced to some extent. The most widely used models in this category are the 21-inch televisions. It comes in sizes upto 80 inches. An FFST has a glass tube, which is either spherical, or cylindrical, or flat in shape, each having a different quality of image. Obviously, the flatter the screen, the better the view. FFST is a technology that reduces reflections and distortion into the edges of the screen, resulting in a more consistent and easy to watch picture. They are the most widely preferred by customers, because of their wide range in quality and price.
TRULY FLAT TELEVISION
The Truly Flat tubes have a completely flat screen. These includes Flat, Super Flat and True Flat televisions. The screen is completely flat, without any visible curves or bends. The Truly Flat TVs reduce the glares and give a wider viewing angle, without any distortions and thus provide with a better viewing experience.
PROJECTION TELEVISION:
Plasma and Projection TVs
Plasma and Projection TVs are the latest in TV technology. In Plasma displays, the TV screens are made perfectly flat and very thin with zero curvature. This eliminates glare, i.e. reflection on the TV screen from the room lightning, giving perfect focus, perfect image uniformity without any image distortion and as such is good for the eyes, unlike CRT screens which will always have a certain amount of distortion. Projection TVs help you enjoy a theatre like experience within the ambience of your home.
They have large screens and are available in two types: front and rear projection. Rear Projection TVs provide excellent viewing from any angle.
Front Projection TVs are not available in the Indian market at present. These come with a separate screen and a projector. Your room size is crucial to the buying of this set, as it requires a certain amount of distance to be maintained between the projector and the screen. Great picture quality, a larger viewing screen angle, and a real life picture simulation makes it stand out from other televisions.
DIGITAL TV:
Most viewers receive their TV signals via cable or by an analog signal sent through the air. However, an analog system maybe subject to distortions and transmission problems. The DTV technology, however, receives a television signal made up of a series of compressed codes that are unscrambled by a decoder (either built in to the TV or in a separate receiver) to produce a crisper, cleaner image and better sound. The digital signal transmission will soon become the standard for all transmissions the world over.
SDTV's (Standard Definition Television):
These are not directly capable of receiving digital transmissions, but have a component input that can be connected to a digital TV receiver/decoder. They are similar to high quality standard TV's. Most SDTV sets are direct-view, not projection.
HDTV's (High Definition Television):
They are the next generation of TV's and have not yet made their appearance in the Indian Market. Generally speaking, they have almost double the resolution of a SDTV
HDTV i.e. high definition television is a the latest television technology providing wide-screen picture quality similar to a 35mm film, along with compact disc (CD) sound quality. Compared to standard television, the HDTV image has twice the viewing space, both vertically and horizontally and is 25% wider. The fine-grained HD picture contains five times more information than does the standard television picture and is accompanied by multi-channel, CD quality sound. The difference in video and sound quality is dramatic too. though this technology is yet to catch on, it seems to be the best possible option.
Hope this information helps.
2006-08-03 04:26:12 · answer #2 · answered by DynamoMan 4 · 0⤊ 0⤋
True Tube Tv
2016-11-11 07:50:47 · answer #3 · answered by ? 4 · 0⤊ 0⤋