LCD and LED

There were times when the cathode ray tube based TVs held sway. In fact, these ruled the TV display technology till the last decade of the last century when their global sales dipped for the first time against the rising sale of the LCD TV sets. All major companies of the world, which make the consumer electronic items, including Samsung, have now shifted their focus on making the more practical, slimmer, LCD/LED TV sets which are fast replacing the outdated CRT sets. The Samsung LED TV is an improvement over the LCD TV since the former uses light emitting diode for backlighting purposes, obviating the need for a tube. The result is the emergence of the visually more appealing and wall-mountable TVs.

LCD/LED technology has made it possible for the companies to provide real life display to the users in the various modern devices that they use. Computers and mobiles are two of the most important areas where this technology finds application. Samsung Galaxy and a range of the smart phones with wide touchscreen features use the LCD/LED TV display technology. Mobiles are used for a range of picture and video based works. Whether it is the playing of the multi-media files, or browsing the internet or even viewing the pictures shot from the mobile camera, these screens provide the most real-to-life display of the photos.

The LCD TV screens in mobiles are a blessing since these provide the best viewing experience of the photos, videos and along with the high resolution cameras that these smart phones come with, the viewing never got better anytime before. When the times of the CRT based TVs were around, the LCD display was limited only to monochrome screen which glowed with one light only. Mobiles have a long way since then. With better contrast ratios and higher resolution capabilities, the picture quality does not leave much to be desired.

Samsung LED TV is more costly than the CRT TV. Further, the latter gives a better view from the side angles, which is not the case with the former. For the TV, where the screens are bigger, you might need to sit straight in order to see the pictures, images or videos. But, in mobiles, due to the comparatively smaller screen size and essentially single user usage, this visual distortion does not matter much as it does in case of LCD TV.

The major benefits of the Samsung LED TVs are their excellent audio-visual delivery, slim and sleek features and the flexibility of using these as wall mounts which occupies less space. These also form part of home theatre system since wider screens can be made using the LCD/LED technology while retaining their sleekness. This was not possible in the era of CRT TVs
This has enabled the use of these TV for public viewing, besides the home or office viewing. Today, one can see these being used in the shopping malls, stadiums, crowded markets and other outdoor places.

Horizons of the display technologies

There is a lot of craze among the people for the new audio-visual devices which can give them better viewing and listening experience. The technological leaps have been small and gradual, but very fast paced. This has led to change in the technological horizons of the display devices. Companies like Sony and others have been at the forefront of bringing these changes to the homes and office of the people.

If it were not for the light emitting diodes, the LED TV would be same as the LCD TV. The latter makes use of the liquid crystal display technology for displaying the images and videos on the screen whereas the former makes use of the light emitting diodes for the backlighting purposes. The LED TV is considered to be technologically superior to the LCD TV and capable of giving a far better viewing experience. Both of them are more practical innovations to the older cathode ray tube based bulky TVs.

Some of the main features of these new age TVs are:

1.These are more practical in the sense that these can packed easily and can be fixed on the walls. This might seem to be a bit unnoticeable point but has great utility in areas of limited space. This is possible due to the sleek and slim designs of these TVs. The old CRT TV was quite bulky, had more depth which limited its placement on some cabinet. This also caused hindrances to the movement of people.
2.These LCD and LED TVs from reputed companies like Sony and others support the high definition features of the images and videos. This means that if the videos have been shot and recorded with cameras having more than 2 MP resolution levels, then these can be seen on these TVs with good deal of clarity.

The LED technology is considered to be a shred better than the LCD TV technology mainly due to better contrast ratios and wider viewing angles. The backlighting in the LED gets switch off in the darker or black regions of the image which improves the contrast ratios. Further, if you view the screen from some angle from the centre of the TV, the viewing is better in case of the LED TV.

The improvement in the display technology has resulted in the making of these TV sets. The LED TVs are very costly and this is the reason for their limited entry into the drawing rooms of the people. The OLED TV, a further improvement over the LED TV does not require even the backlighting. It makes use of the Organic light emitting diodes for this purpose.

The researchers at top companies of the world, like Sony are always working on newer technologies to further improve the display technologies and devices. This improvement is now sought to be introduced in the SED technology. This is believed to hold a lot of promise for the future since it combines the best of the old and the new technologies.

From CRT TV to LED TV

There is always a debate on whether the new products are better than the older ones. Since the technology had advanced, there is definitely more to argue in favour of this argument, than against it. This debate has been ranging for all times and for all the things that are new. The people who are averse to change, at least till the point that the new things become very common and the old ones are near to be discarded, will habitually compare the new with the old. One such comparison has been that of the display devices like the TV.

TV technology has undergone considerable change. This has made a considerable impact on the size, design and the shape of the TVs, not to speak of its numerous new features and functions. The movement of the TV technology from the CRT to the tube-less LCD TV has been quite a long one, considering the pace of the subsequent technology changes. From CRT to LCD, the TVs have become slimmer, thinner, flatter and easy to carry. Not that the CRT ones have been thrown into oblivion but only that their sales have been taken over by the LCD TV sales a few years back. This obviously means that people are fast changing the track and coming on the new, supposedly better display technology. Since the CRT TV does not have depth and can be really slim, it means that these are more practical to be used, attached to the walls, kept on the cabinets and even made into the home theatres.

The LED TV is a further improvement of the technology. From LCD to the LED, the change brought about by the change in the backlighting device gives the users a better viewing experience. The contrast ratios are better, the display screens become wider, the TVs become even thinner, viewing from greater side angles is possible and there is some improvement in the power consumption also. Despite these advantages these have not been able to beat the LCDs because, being a new technology, the LEDs are prohibitively costlier for common people. Further, the LED TV generally come in wider screens, much bigger in size than the normal LCD TVs. This also limits their practical, daily use.

Companies like Sony are devising ways and means to bring down the costs of the LED TVs. The companies at the forefront of the technological research in the consumer electronics always keep in mind the practicality and the utility of the new devices which are developed by them. The companies continuously keep bringing in better innovations and the pace of these innovations is so high that the moment one technology is seen and understood by the common man, the new one comes up to replace it. This is quite evident that while the LCD TV has taken over the CRT TV in global sales volume now, the LED is yet to establish itself completely in the home and offices of the people, the new technology SED TV is knocking on the doors. There are many parallel running technological changes as well, like the plasma TV, OLED TV and others, from which the users can make a choice.