But LCD TVs also have some inherent technical defects: large-size LCD TVs are expensive. LCD TV sets can compete with plasma TV sets only 42 inches above the product, but now these products are still called "sky-high". Sharp launched a 45-inch LCD TV, for example, its market price of nearly 70,000 yuan, while the same display area of plasma TV prices have dropped to a minimum of 20,000 yuan, some have been close to the 10,000 yuan mark. To let the price of LCD TVs down to the same specifications of plasma TVs within a similar price band, still need a longer period of time. The reason for this situation is mainly in the manufacturing process of large-screen LCD panels with low yields, resulting in the cost can not be reduced. Large screen LCD panel technology is also still in a relatively closed state, in the world still has not formed a competitive situation of mass production, and there is a big difference in quality.
Bad dot problem. The bad dot problem is one of the biggest problems plaguing LCD TVs. Bad spots on the LCD panel can not be repaired, only to replace the LCD panel, and the LCD panel almost points according to the whole LCD TV set at least 70% of the cost. If damaged in the course of use, this will be a great investment. Of course, some manufacturers provide a zero-bad-point product quality commitment, but there are defective products either recycled or scrapped, will produce some unavoidable costs, and these costs will ultimately be passed on to consumers.
Since it is a product made of liquid crystal material, there is not much difference in the way LCD televisions are purchased and ordinary LCD monitors for computers. Its focus mainly includes:
1, contrast: the so-called contrast is the screen display of black and white two colors of the degree of contrast, which represents the state from all black to all white **** divided into how many levels of hierarchy. All black is 0, all white is 1. Such as 300:1 is from all black to all white state *** divided into 00 level. When the contrast ratio reaches 120:1, you can easily display vivid, rich colors. And when the contrast ratio reaches 300:1, it is able to support the colors of each color scale. So theoretically, the higher this value represents the stronger the picture hierarchy.
2, brightness: on behalf of the LCD panel backlight bulb issued by the brightness of the light, which is measured in candles per square meter "cd/m2", which is generally referred to as NIT. brightness is too low people will feel that the screen is darker, of course, a little brighter will be better. At present, the domestic market can be seen in the LCD monitor brightness are in 200-300cd/m2 or so. However, if the screen is too bright, the human eyes watching the screen for too long will also have a sense of fatigue. Therefore, for the vast majority of users, the brightness is too high does not have any practical significance. It is also worth noting that LCD monitors are generally very bright in the center of the screen, and near the edge of the part of the brightness will be reduced by nearly 25%. So the best and most effective way is to compare multiple LCD monitors side by side one by one, and choose the one with the best average brightness.
3, reflectivity: an LCD TV even if the picture quality is excellent, colorful, if the reflectivity is too high, reflective reflection can be used as a mirror, even if the good are useless. Want to know how much an LCD TV reflective, it is very simple, first off its power, if the picture is more black on behalf of the more non-reflective.
4, the visual angle: alone on the current market for the sale of LCD monitors / televisions, the visual angle is symmetrical. That is, by the left or right side can see the image on the screen angle is the same. For example, the left side of the 60-degree viewing angle, the right side must also be 60-degree viewing angle. The top and bottom viewing angles are usually smaller than the left and right viewing angles. From using ...... >>
Question 2: What parameters do you need to look at to buy a TV? Screen type
The screen has its own characteristics, and if you are looking for image quality, you can try to choose a hard IPS screen, a super-crystalline X panel, and a soft screen from some well-known manufacturers.
The TV screen is the most important part of a TV, accounting for 80% of the total cost of the TV. TV screen directly affects the picture quality, is a measure of the core part of the quality of the TV. When purchasing a TV, it is best for consumers to have some understanding of the type of TV panel and to see what panel is used in the TV they want to buy.
Screen size
The size of the screen should be based on the viewing distance, and a distance of around three meters is perfectly fine for a TV of 50 inches or more.
The size of the TV screen is the most intuitive impression of the TV, and is one of the most important reference standards for us to buy a TV. Choose the size of the TV screen should be based on their own home viewing distance to decide, because watching TV both to ensure good viewing effect but also to avoid viewing fatigue. If you are in a relatively large living room, the viewing distance is three meters or more. Then you can choose 50 inches or even more TV, but it is best not to exceed 60 inches. If you are in a bedroom or a smaller living room, then a 42-inch or smaller TV is a better choice.
Resolution Recognize *** Pseudo
If you choose a TV with 4K, you should recognize *** pseudo.
TV resolution is the precision of the screen image, refers to how many pixels the TV can display. There is nothing hotter in the market now than a TV with 4K Ultra HD resolution, which is able to provide a resolution of 3840×2160 four times that of 1080P, which is able to display more details in the TV picture and significantly improve the clarity of the picture.
Response time and multiplier drive technology
● Response time ≠ refresh rate
Comments: Choose a TV with a short response time, the general demand for 8ms can be, and often watch sports programs to play games can choose 4ms and below.
● Speed drive technology
Comments: Simply high refresh rate is meaningless, with the speed drive technology can assist in solving the problem of shadow dragging.
Number of interfaces and video decoding
● More interfaces and newer ones
Comments: TVs should have a full range of interfaces, a sufficient number of interfaces, and ideally support the latest transmission standards.
● Video hard decoding is rich
Comments: The hard decoding of the TV should support RMVB, MP4, MKV, MPG, MOV and other common formats, and it is best to support H.265 decoding.
Energy efficiency and power are very important
● Energy rating, power
Editor's note: Buy a TV to see the TV's energy efficiency rating, running power consumption and standby power consumption.
Question 3: buy LCD TVs mainly look at the aspects that is to look at which parameters a screen size This is the purchase of LCD TVs when the primary concern of a parameter, although it is a superficial effort, but also a great deal of learning. It refers to the LCD screen diagonal length, in inches. Large LCD TV viewing effect is better, more conducive to viewing at a distance or in a spacious environment. However, by the LCD board manufacturing process, the size of the LCD screen cost will rise sharply, of course, the price is really not expensive. Now the mainstream product main screen size in 30 to 40 inches. LCD TV's reasonable viewing distance is about 4 times the size of the TV screen. For example, 21-inch TV, the best viewing distance is 2.13 meters; 29-inch TV, the best viewing distance 2.95 meters. So when you buy LCD TV, you can not blindly greedy big, can not be cheap on the small, should be based on the size of the space in their homes, to decide to buy LCD TV screen size. Second, the screen ratio It refers to the proportion of the screen width and height, also known as Aspect Ratio (Aspect Ratio, also known as the aspect ratio or called the screen ratio). The current LCD TV screen ratio generally have 4:3 and 16:9 two. Almost from its inception to the middle of the last century, the vast majority of the movie screen ratio is the standard 1.33:1, that is, 4:3, in order to facilitate the broadcast of television, the traditional television has also adopted this standard ratio. Because our current TV programs are transmitted with analog signals, they are best viewed on a 4:3 screen. But to digital signal transmission is in the trend, so now the LCD TV 16:9 screen to replace the 4:3 screen trend. View original post>>
Question 4: buy TV need to pay attention to what parameters LCD choose Hitachi or Samsung LG reliable wow picture delicate of course good ah Note: General sellers will sell TV when playing the kind of store-specific CD film to improve the degree of detail of the LED display screen "This point is worth paying attention to" "Now the TV above all have a network interface + USB + HIDI interface, note that the choice of some of the Japanese cable interface + USB + HIDI interface, the LED display screen to enhance the degree of detail. HIDI interface Note that the choice of some Japanese or Korean TV is more reliable (Toshiba Sanyo Sharp SONY LG Samsung, etc.) Domestic technology mud understand Satisfaction please give points in a timely manner
Problem 5: buy LCD TVs, generally look at which performance parameters 1. The main reason for the importance of this interface is that nowadays disc players, computers, home theater and other equipment, will actively use this interface. So make sure you know if you need an HDMI port before you buy, to minimize the chances of regretting your purchase.
2. Pay attention to the actual resolution
The actual resolution of the LCD TV refers to the resolution that the LCD TV itself can achieve, and you should generally choose 1280*1080 and above
3. Brightness, contrast, viewing angle
Manufacturers tend to exaggerate on the brightness and contrast, and generally speaking, a product with 500 lumens of brightness and 600:1 of contrast is better. A product with a brightness of 500 lumens and a contrast ratio of 600:1 or more is not bad. In fact, consumers can directly ignore the brightness and contrast parameters provided by the manufacturer (too false), directly to their own visual experience based on the method of 5 meters away from the distance, to view the screen display brightness and contrast, pay attention to some of the details of the performance of the dark scene, more than a few product comparisons, so that down the road, we know that you will buy the LCD TV in terms of brightness and contrast whether you can make you satisfied. Nowadays, the viewing angle of the LCD panel is generally more than 170, the problem to pay attention to is that, when watching from the side, pay attention to the screen left and right and the center of the screen is clear, whether the brightness difference is large, choose the product with the smallest possible difference.
Question six: 4k LCD TV parameters how to see The resolution is more than 3800 X2160. is the current mainstream TV.
In the 1990s and the first few years of this century, the domestic better and bigger TVs are joint ventures or imports. Domestic production is still stuck in can only produce ten twenty inches, with a two or three years is not a problem of the times. After joining the World Trade Organization, the Japanese took the lead in their car companies, electronics and electrical appliances into the Chinese mainland, thus making similar Chery, Geely, BYD and other car industry. Hisense, Great Wall, Changhong, Konka and other electronic and electrical brands rise. To be honest, it is the rise of imitation products. R & D technology, really still in the hands of others. So, these national enterprises, really want to thank the Japanese.
More than ten years of market competition, cheap domestic, especially to Huaqiang North, led by the emergence of "refurbished machine" "cheap machine", finally made most of the Japanese brands to the doldrums. Similar to Sony, Toshiba, Panasonic and other brands have other areas to go, and basically only rely on the production of TVs, cell phones Sharp on the verge of extinction, the panel production line in Taiwan has been sold to Foxconn.
But a hundred years of Sharp by no means rely on false blowing and go to the present. At present, whether in Japan itself, or globally, Sharp is still the industry leader. The current domestic production of Sony, Toshiba, Panasonic and other 60-inch and 65-inch are Sharp screen, but are Sharp's previous generation of ASV low reflection panel, and Sharp 60LX531 panel a grade. X50 uses the industry's most advanced four-color panel technology, in terms of color expression and contrast completely beyond the previous Sharp's own ASV panel. The four-color panel is Sharp's latest and greatest technology, and after several years of testing and improvement, it has now come into maturity. The Japanese don't waste advertising dollars on immature technology. Currently it is only self-supplied for high-end models above 60". Currently 60-inch models all from Sharp is located in Japan, Osaka Prefecture City, the tenth generation of LCD panel factory, this factory is mainly cutting 60, 65, 70-inch LCD panels. Is also the world's only one ten-generation line panel factory, you can go online to search. And to tell you the truth, Sharp's origin is a few: Foshan, Yantai, Nanjing, you want to buy which place production? The answer is: Foshan - Foxconn OEM panels (SDP), Yantai - TPV OEM panels (INX), Nanjing - Sharp self-produced panels (X Super Crystal). (That is to say, the domestic Sharp panel is the best of Nanjing produced X Super Crystal panel, this panel is not comparable to the domestic machine, whether it is the image or life expectancy, the remaining two are to go to the market low-end cheap goods, the quality of Hisense Konka Changhong and other brands about the same) Each product has the most professional brand, for example: camera = Canon, Nikon. Professional and civilian camera broadcasting equipment = Sony. Washing machine = Panasonic, Sanyo. Refrigerator = Panasonic, Sakura. Air conditioners = Mitsubishi, Daikin. Computer = Fujitsu, NEC, Sony. Plasma = Pioneer, Hitachi, Fujitsu, Panasonic. Cars = Toyota, Honda, Mazda. All of the above are global level well-known enterprises. 1953 Japan's own first black and white television set is Sharp manufacturing, in 1973 the world's first LCD screen is developed by Sharp and used in the LCD calculator above, the first LCD TV as well as the world's largest 108-inch LCD TV are Sharp manufacturing. Look at Tokyo's largest, most modern movie city used to display movie ads inside the TV are all Sharp 108-inch. Take a look at the largest and most advanced T2 and T3 terminals at the Capital Airport, where the information display is a million Sharp 108-inch. And look at the display wall inside the Japan Pavilion at the World Expo, all of which are made of Sharp 60-inch screens spliced together. The most professional TV manufacturer, you can see in these places. If you *** Japanese goods, you can not choose Sharp. But if you are looking to buy a large flat-panel LED LCD TV over 60 inches, there is no doubt that Sharp is the way to go, both in terms of picture quality and longevity.
Question 7: What to focus on when choosing an LCD TV How to buy a flat-panel color TV. We used to watch the TV is basically a tube TV (CRT), and then there is a rear projection, and now go to the store to see are the world of flat-panel TV, the following mainly explains how to buy a flat-panel TV: 1, to decide the location of the TV set, such as the living room or bedroom, generally speaking, placed in the living room of the TV size than the bedroom, of course there are also personal preferences are different, if you have a TV set If you have a TV set, now for the purpose of updating, that there is a minimum size selection principle, for example, the original look 29 inches, you can choose greater than or equal to 32 inches, the original look 34 inches, you can choose greater than or equal to 37 inches, and so on, of course there are also different personal preferences, why choose a bigger than before, that's because the original TV is 4:3, close to a square, and now it is 16:9, rectangular, so there is a visual difference. 2, the TV set placed in the living room or bedroom, generally speaking, placed in the living room TV size should be larger than the bedroom. So there is a visual difference. 2, flat-panel TV sets currently on the market there are 2 types, a liquid crystal (LCD), a plasma (PDP), of course, there is now a LED (due to the start-up, the technology is not mature, the fish eyes are mixed up, the cost is not high, so except here, and the trend of the LED OLED). Is the choice of liquid crystal or plasma? Here is a principle: insiders look at plasma, laymen look at liquid crystal; large screen look at plasma, small size look at liquid crystal; dynamic look at plasma, static look at liquid crystal. For this principle should also be viewed dialectically, plasma and liquid crystal imaging principle is different, the structure is different, so there are inherent differences between the 2, from the technical data, parameters, plasma than liquid crystal slightly better than the 2 have their own merits, it is difficult to say which one is good and which one is bad, the following choice of liquid crystal to analyze a few important parameters: A resolution, for the domestic market, there are two kinds of resolution, 1366 *768 called standard HD (the national standard is 720), 1920 *1080 called Full HD, watch TV programs and DVD, that standard HD is enough, if you look at the BD Blu-ray and so on, it is necessary to Full HD, of course, a step directly on the Full HD can also be, that is, the cost of a little higher. Now there is a full high-definition called 1080P/24P, for the movie, that is to say, to see the film more fluent. B times the speed of technology, double speed to 100HZ (PAL 50HZ), four times the speed of 200HZ, that is to say that the image processing is more fast, smooth picture, but the human eye on the 24HZ, so do not over-attend to the parameters of this. C backlight, the original C backlight, the original 3-color backlight, that is, red, green and blue, and now 4-color, plus crimson, color reproduction is more natural. D 10bit LCD driver, the original 8bit. E response speed, in ho seconds as a unit, the national standard is less than or equal to 20 ho seconds, and now the product is 6 or 4 ho seconds, the smaller the number the better, but these data are based on experimental data in the manufacturer, the actual situation will be greater than this value! F, other parameters such as dual screen, surround sound, output and input interfaces, etc., you can choose according to their own needs. And then briefly talk about the plasma situation: due to plasma manufacturing factors, generally speaking, plasma is a large screen, that the resolution can be directly selected full HD, and plasma is almost no trailing phenomenon, the previous phenomenon of burning screen with the advancement of technology has been greatly reduced, the life expectancy is almost the same as the LCD, and the color is soft, layered sense of the best to look at the dynamics of the best, the LCD is brightly colored. For our people, are amateurs, eye intuition is the effect, but the eyes will also deceive themselves. The main function of the TV is to watch TV, in addition to watching TV there is to watch DVD DVD, generally speaking, the living room will be placed in the home theater, so that the living room TV size, in addition to the TV program is to watch the DVD, so I suggest that the living room placed in the plasma, the bedroom to choose the LCD, the size of the size of the personal preference is still the main, the resolution to see the use of a multiplier, 4-color backlight is best, the smaller the better the response rate. The smaller the better and so on. Select LCD preferred Sharp, followed by Sony, reason Sharp LCD screen first-class and Sony's image processing technology is good. Select plasma, preferred Panasonic, followed by Hitachi. Specific size model parameters can be on the product official website.
Question 8: What parameters do I need to look at to buy a TV in 2015? Poor picture quality of domestic brands preferred LeTV, millet, simply can not be called TV, the second worst is Konka and Skyworth, and the quality of the fact that everyone is average (what TCL, Hisense, Haier, Changhong, Panda, etc.), to be frank, at present the domestic brands are to buy a screen and shell and drive board back to assembly only, are spelling the cost and sales, there is nothing technical investment and R & D funds. So the picture quality of domestic TV is naturally very ordinary la, after-sales is also very general, once out of trouble you go to the after-sales they are pushing, I personally think that if you want to buy more than 4,000 yuan of goods, there is no need to buy a domestic brand.
The TV is currently the best quality and picture quality is sold in Japan to Europe and the United States and stay in their own use of the Japanese version, the American version, the Western European version, in Japan, to Toshiba sales and use of the reputation of the best, Sony second.
In 2014, the Japanese audio-visual enthusiast community recognized the most professional two A/V magazine evaluation results, 4K picture quality king first place is Toshiba 55Z9X, Sony X9500B second, 2013 4K picture quality king first place is Toshiba 55Z8X, ranked second is Sony 55X9200a and Sharp 55UD1 two. 2K picture quality king is Toshiba 55Z7, Sony 65HX950. 65HX950.
Hong Kong version and other Asia-Pacific version is okay, and the mainland version is actually the worst, circuit chip, panel level of various shrinkage, but also secretly shrink, but the country has always revered foreign ***, taste and low, only look at the appearance and function. Like to be fooled, so not many people can notice.
Buy TV, recommend that you look at the Japanese professional review, the mainland's so-called review organization qualification level is low, the editor has little insight, most of the money received by the manufacturer, the so-called review is completely nonsense a flurry of touting. Basically, there is no reference value. So the original Japanese goods and sold on the mainland is completely two different things.
Samsung TV picture quality, has always been nothing better, Samsung good is the panel, 08 09 years when the black crystal S-PVA panel native picture quality is very good, high contrast, deep black, by Sony and Toshiba's high-end LCD, but the cost is high, Sony and Samsung cooperation after the panel plant separation, in 2010, Samsung discontinued production of the black crystal, and then the so-called PVA panel are cheap and shrinking goods. Panel are cheap shrinking goods, picture quality big regression. Last year's Samsung TV, was a forum god stabbed, its TV set is divided into the test version and market version, once accidentally market version of the F8000 sent to a review body, was measured out of the blue level overflow, the green level is super low, the picture quality of the overall bluish, the contrast ratio is very strange, the color is pale. Samsung later gave some money through public relations, said the wrong machine sent to the problem, re-sent a test version to the review, very cheap right. Samsung in 12 years after the ES series and F series picture quality are big regression, domestic PVA panel indicator shrinkage is great, using Suzhou production garbage W-LED do backlight. See TVB "love home" inside those Samsung-sponsored F8000 TV, and some of the current affairs programs in the South TV Samsung TV, the picture blue degree is outrageous, the picture quality is disgusting.
However, Samsung after-sales is very good, as long as you find serious light leakage and bad spots and scratches, they will be very crisp to replace the new machine.
Sharp is not a good thing, in the Japanese manufacturers, shrinking it counts the oldest qualification. The first to use Taiwan panel, blow what four-color UV technology, blow what Japan original panel, but if you actually looked at the picture quality, feel all are fart, dynamic fuzzy, black bit of a mess, a certain number of series also have bias color problem, human skin is pig liver color. Sharp's high-end panels, even their own can not afford to use more, most of them do monitor, the effect is very good, but the devolved civilian, only a few XS1A RX1 good picture quality, X50 is also qualified, and later LX930, LX950A, LX850, LX730A and other so-called mid-range and high end, the quality of picture unanimously unqualified, but the price is still selling expensive. Sharp's own shrinkage Judas can, but also bring the ring of several other good Japanese brands, Sony, Toshiba, Panasonic have since followed suit. Now the Sharp LCD factory are sold to Foxconn, high-grade Kameyama panel in early 2011 when production has been discontinued, are now mass production of cheap shrinkage panel, the cost can be controlled. And Sharp's after-sales moderate, customer service a high look.
Say LG, before 2012 LG's LCD picture quality are moderate, 08, 09 years that time LG's own IPS TV's sense of oil painting is particularly strong, not too much like, and LG's so-called XD engine, in the dynamic clarity and SD, non-point-to-point picture quality did not see any big improvement, and SD optimization technology level and ordinary, Korean TV color mixing technology ...... >>
Question 9: What are the main configurations to look for when buying a TV online? The following configuration and parameters are you must understand, divided into two parts (primary and secondary):
First, the main configuration
1,LCD TV is LCD or LED panel (LED advantages are power saving, more realistic picture, longer service life);
2,LCD panel is a soft-screen or a hard-screen (hard-screen advantage is that the movement of the picture does not drag);
3,LCD TV is a soft-screen or hard-screen (hard-screen advantage is that the movement of the picture does not drag);
4,LCD TV is the most popular TV in the world. p>
3, whether with USB direct plug, whether with RMVB and other mainstream video formats playback function (USB direct playback function: plug in the U disk, the TV can play U disk on the HD movie, MP3, pictures, etc.)
Second, auxiliary configuration
1, whether to use the 100/120Hz times the speed of the technology (times the speed of the liquid crystal drive technology: the effective elimination of the screen Drag phenomenon, the dynamic picture can be comparable to plasma, especially suitable for watching football matches and action movies);
2, whether with 3D TV (the so-called 3D TV, is through the LCD panel with a special precision cylindrical lens screen, after the coding process of the 3D video image into the human left and right eyes independently, so that the user does not need to use stereoscopic glasses to experience the stereoscopic feeling of the naked eye, and at the same time, compatible with
3, whether the network function (network function: directly plugged into the Internet line can visit the web, watch video, etc.)