One: LED backlight leads ultra-thin fashion.
The pursuit of thinness has always been the trend of flat-panel TV, but the thickness of the screen itself has been difficult to reduce. It was not until LED backlight replaced the traditional cold cathode backlight tube that the thickness of LCD TV broke through the limit. Of course, readers who pay attention to the development of LCD TV know that the advantage of LED backlight is not only thin, but it is generally believed that the color performance of LED backlight is better than that of traditional backlight. In fact, that is the patent of RGB LED backlight, which is only used in some products with tens of thousands of yuan at present, while white LED is usually used as backlight by side shooting, pursuing thinness, energy saving and long life, and color is not the advantage of white LED. In addition, the thinner the fuselage, the more difficult it is to make the uniformity of backlight. The performance of ultra-thin LED side-lit backlight is completely black in the picture below, and thickness and uniformity are a pair of contradictions that are difficult to solve at present. In addition, LED backlight has the characteristics of fast dynamic response, which is helpful to improve the efficiency of dynamic backlight.
In fact, users don't have to worry about such a picture. Due to dynamic backlight adjustment, the brightness is very low when it is completely black. The above photos were taken under long exposure, which is actually difficult for people to see. Well, although LED backlight is not a new technology this year, the ultra-thin products of white LED backlight have only recently appeared in large numbers. In any case, the actual performance of white LED is better than that of ordinary CCFL, and other advantages, especially the temptation brought by ultra-thin body, are hard for many perceptual consumers to resist.
Double hot cathode backlight lamp tube
Simply put, compared with traditional cold cathode backlight (CCFL), hot cathode backlight (HCFL) has higher luminous efficiency. Sony achieved the goal of energy saving by reducing the number of HCFL backlight lamps. As shown in the figure below:
Traditional CCFL cold cathode backlight lamp tube
Sony HCFL hot cathode backlight lamp tube
It is obvious from the above two pictures that the number of LCD TVs with HCFL backlight is greatly reduced, so the power consumption is naturally reduced. With the high luminous efficiency of HCFL, it can still reach the level of CCFL backlight after reducing the number of lamps.
At present, HCFL only has Sony's exclusive technology, and only WE5 is adopted. Although the structure will not have much impact on the cost, and infrared thermal imaging has not found the phenomenon of high temperature, but because it has not yet become a scale, the price is higher. However, with the concept of low-carbon economy sweeping the world today, it is still unknown whether HCFL with high light efficiency can completely replace CCFL.
Three Integrated Network Functions and Customized Network Services
Surfing the Internet on TV is not a new concept, but many previous attempts have failed. Only recently has there been a new application mode. The Internet here is not surfing the Internet with a browser like a computer. I think remote control operation is really not suitable, and the big screen is not suitable for reading words for a long time. This is not the media resource of DLNA home LAN. At most, it is a network cable rather than an audio and video cable, which has many limitations. The TV integrated online function mentioned here is a really suitable way to obtain TV demonstration information. For example, Samsung's Internet @TV is an information push mode that cooperates with Sina. Weather, news and stock information can be obtained while watching TV programs. This model is gradually imitated by other manufacturers. I believe it will appear on many televisions, and it may also become a breakthrough for IT hardware giants and online media giants to seize the living room.
Quadruple frequency dynamic optimization technology
The application of 100Hz/ 120Hz frequency doubling framing technology in LCD TV is the hottest technology in 2008. Through the analysis and comparison of the two images before and after, a new intermediate frame is created, so as to realize the coherence and fluency of the moving picture. This is another method to improve the inherent defect of slow response time of LCD TV, and the effect is immediate. If you are sensitive to tailing, you will be equally sensitive to the effect of frequency doubling. With the second frequency doubling, the fourth frequency doubling naturally appears. Inserting one frame into inserting two frames, the natural effect is more obvious.
New 200Hz MotionFlow
By taking photos to capture the instantaneous working state, we can see that 200Hz Mtionflow produces more intermediate frames, and readers can also see that the trailing distance cannot be shortened after opening, that is, the response time of the panel has not changed, but the process between image movements is more coherent, which is also an effective method to improve the dynamic clarity from the characteristics of human perception of moving images.
Enable motion flow
Disable motion flow.
Disable motion flow.
Enable motion flow
A large number of intermediate frames generated by Motionflow can also be seen in PS3 games. Obviously, dynamic definition testing can't reflect this optimization technology that works more through visual persistence by capturing photos. In fact, the amount of reading the author's eyes has increased from 700 lines to 850 lines, and the effect is very obvious. Dynamic objects are easier to see than when they are closed, although some shadows will be seen, which is actually proof that the response time cannot be changed. In short, the improvement effect of Motionflow 4 frequency doubling is obvious, and the consistency after optimization is better than that of the previous generation, and it will not feel abrupt.
Frequency doubling is not everything. In "Viagra also has side effects", the TV frequency doubling function is summarized.
The author also introduces its negative effects in detail, so the manufacturers with real technical strength will control the opening and optimization of this function. For TV programs and video games, the frequency doubling effect is good, but it is not suitable for movies. Selective opening is the correct way to use it. As for the eighth octave after the fourth octave, instead of inserting seven frames between two frames, black screens are inserted at intervals to reduce visual residue and achieve better results. Of course, these technologies become less obvious with the improvement.
Five-digital TV all-in-one machine
Last year was the first year of the launch of unlimited digital terrestrial television. The first batch of experience users mostly used DMB TH set-top boxes, USB receiving sticks and other devices. The concept of integrated digital TV has been heated, but there are not many products to choose from. This year, with the upcoming launch of the new channel, the coverage has become wider, and the high-definition live broadcast of the 60th anniversary military parade and performance in anniversary has once again attracted great attention, and the number of all-in-one digital TVs in the market has also increased. It is no longer a patent for high-end models, and two antenna interfaces are the symbol of the all-in-one machine. It should also be noted that the digital all-in-one machine only includes receiving DMBDTH national standard digital terrestrial TV signals, while the digital TV transmitted by cable TV stations belongs to DVB-C. Due to the incompatibility of encryption systems in various places, it is difficult to see a real all-in-one machine at present.
The biggest advantage of the all-in-one machine is the great convenience in connection and control, and the effect is more guaranteed. The perfect integration of EPG electronic program guide and system functions will bring you a different viewing experience.
Six video download functions
Rich video program resources on the Internet are free meals for netizens, and watching on TV is the best choice, which also breeds the popularity of connecting TV with computers. As a result, a download machine supporting various download protocols has emerged, which has the advantages of low power consumption, low noise and more convenient playback. The evolution of TV function is to do addition and subtraction. Integrating this hardware into TV can save a lot of trouble, and manufacturers have begun to try to provide resources for this way. Although it is full of controversy, this function will have a considerable market in terms of user use, but the additional hardware cost and functional limitations still cannot meet everyone's needs. There are still many unknowns about how to develop in the future.
Television theater interface
Movie seed file download interface