LCD TV/LCD TV quality ranking

< 'Samsung Electronics Co., Ltd. is South Korea's largest company, and its business involves many fields, including semiconductors, mobile phones, displays, notebooks, televisions, refrigerators, air conditioners, digital cameras and products. Samsung Electronics maintains a leading position in the international market in recent products such as dynamic memories, static memories, mobile phones, computer monitors, LCD TVs, and color TVs.
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' In addition to jointly producing LCD screens with Sony, Samsung also has its own brand of LCD TVs. Samsung's unique LCD TV technology, super color technology, digital natural engine rr, professional surround sound effect and wonderful entertainment mode rotating base.
: Sony LCD TV
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' ' The launch of Sony LCD TV has opened up four new hot spots in the field of flat-panel TVs, namely. 3 interface, b high-definition panel,. .Color gamut standard and dynamic response time technology. These three new technologies have been applied to the third generation of Sony BR LCD TV products. If the current Sony LCD TV camp is arranged in order of high, middle and low-end, it should be,,,,, these six series.
So according to logic, Sony has allocated these three new technologies to types with different positionings. That is to say, except for the most flagship series of LCD TVs, no other series has these three majors at the same time. Skills, this is also to reflect Sony’s original position as the king of TV.
Skyworth LCD TV
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Skyworth was founded in 2008. After twenty years of struggle, Skyworth has grown into an internationally renowned Chinese home appliance giant. In the fiscal year, the group's annual sales reached HK$330 million. The export volume continues to rank among the top in the country year after year, successfully ranks among the top ten international color TV brands, and becomes an outstanding company ranked among the top 100 electronics companies in my country.
Skyworth is based in my country and faces the world. With the concept of focusing on health technology, Skyworth has been leading the trend of healthy home appliances from flicker-free technology to healthy cloud TV to Tianci TV. With a rich range of audio-visual products, we provide consumers with ultra-high-quality audio-visual enjoyment.
: Hisense LCD TV
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Hisense TV business is operated by Qingdao Hisense Electric Co., Ltd. Hisense Electric has one of the most advanced digital TV production lines in my country, with an annual color TV production capacity of 10,000 units. Hisense adheres to the development strategy of technology-based enterprise and stable operation, and continues to develop healthily with the optimization of industrial structure as the basis, technological innovation as the driving force and capital operation as the lever.
Entering the 20th century, Hisense, backed by strong R&D strength and an excellent international operation and management team, has accelerated the pace of industrial expansion, forming a multimedia, home appliances, communications,, real estate, services (and supporting) Six major industrial sectors. In 2017, Hisense achieved sales revenue of 100 million yuan, ranking first among the top 100 electronic information companies in my country.
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: Sharp LCD TV
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' ' Sharp is a Japanese electrical appliance and electronics company. Founded in 2001, the head office is located in Osaka, Japan. Sharp is currently operating in 10 countries and regions around the world and is a large-scale comprehensive electronic information company. In 2019, Sharp's share price continued to fall. On 2019, Sharp announced that it would submit delisting applications to Japan's Sapporo Stock Exchange, Nagoya Stock Exchange and Fukuoka Stock Exchange.
This is due to Sharp's cooperation with international giants and the decline in the value of the yen. Sales of LCD panels for its main products are expected to increase. Reorganization measures such as staff reductions will also contribute to improved performance.
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Additional common sense: How to choose an LCD TV
In addition to the tips introduced above when purchasing an LCD TV, there are other things to consider, such as Interface, LCD panel size, resolution, etc. In short, as a consumer, you need to learn more professional knowledge, not be superstitious about the parameters in manufacturers' advertisements, focus on your own feelings from actual viewing, and shop around, so that you can buy a satisfactory LCD TV.
How to distinguish various types of LCD panels
For flat-panel TVs, the display screen is the most important component, accounting for about /3 of the cost of the whole machine. LCD screens are divided into ordinary screens, ordinary screens and professional screens due to different technologies and processes. This kind of display screen is a special screen for LCD TVs. It has greatly improved image resolution, color, and texture. It can truly reproduce digital high-definition image quality and is particularly suitable for the needs of digital TVs. LCD screens on the market today are divided into three grades: the best quality ones are Sharp screens, but they are not available at all, followed by screens from Japanese and Korean manufacturers, such as Samsung Electronics () and finally screens produced by Taiwanese manufacturers, such as AUO. and Chimei. Today, only these five major manufacturers have the ability to cut large-scale LCD panels above an inch. Choosing a panel from a large manufacturer with leading technology will have advantages for future use, such as longer service life and color than low-end panels. The following introduces the characteristics and differentiation methods of several common LCD panels.
, Check the picture tailing
The human eye has a certain reaction time when watching dynamic pictures. If the response time is long, the lag of the moving picture will appear, which will greatly affect the picture effect. If the response time is shorter, in When watching fast-moving pictures, you won't feel any afterimages or traces of friction. Picture tailing was a disadvantage of early LCD TVs. However, with the continuous improvement of technology and technology, the response time of most LCD TVs has been shortened to milliseconds, and some even reached milliseconds. Such a short response time is now far shorter than Human eyes are sharp, and the tailing phenomenon that was easily caused by fast-moving images in the past almost no longer exists. However, in addition to the response time, the optimization of the manufacturer's algorithm will also have a great impact on eliminating tailing and afterimage phenomena.
Nowadays, some LCD TVs have been improved with innovative technologies, completely eliminating smearing and afterimage phenomena. For example, Konka Sports TV uses digital motion compensation circuitry and Dynamic 3 noise reduction technology. This technology can quickly check TV signals in an instant, adopt different processing methods for moving areas and static areas, eliminate snow blur in moving pictures, prevent comb teeth in moving parts, ensure the proper sense of speed, and effectively eliminate tailing phenomena .
When we buy a TV, we need to look at the TV screen from multiple angles. For example, choose the angle to face the screen, then shift some angles, and stand on the same horizontal line as the TV screen to see if When inspecting the machine after seeing the pictures, you can also ask the promoter to play some faster pictures to see if the movements on the pictures are connected and whether there is tailing in the picture.
Easily identify dead pixels and bright spots
When some brothers were buying LCD TVs, they saw that the picture shown by the promoter was perfect, but after buying it for a while, the bright and dark pixels were broken. Dots appear on the screen one after another, which seriously affects the screen effect. It is not that simple to go to the merchant to discuss it. So how can we identify whether the LCD TV has dead pixels or bright spots when purchasing? There are three methods to choose from:
The simplest method is to make the screen completely black and watch in pure blackness. Are there any highlights? Then make the screen completely white and see if there are any black spots. Finally, switch to red, green, and blue to check the completeness of the color points. If during the inspection you find that there are more defective pixels than the national specification, don’t buy it.
Another method is to connect the computer to the LCD TV, and then display the required picture through a solid color picture in software such as , . You can also select a desktop of the corresponding color in the computer desktop properties to view. This method is the same as the viewing method when purchasing an LCD monitor.
The third method is to use disc viewing, which is a home theater audio-visual test disc. The original version of this disc has Chinese subtitles, explaining the complex test processes in detail. It enters the test process when watching the disc. During the test, it is clear whether the LCD TV has dead pixels and bright spots.
, Contrast is tricky
Contrast refers to the ratio of the brightness of the brightest pixels and the darkest pixels in the image displayed on the screen. It directly affects the transparency of the image, the brightness of the color and the clarity of the image. Spend. To put it simply, the higher the contrast, the whiter the white we see and the purer the black. But when you walk into a home appliance store, you will find that the marked contrast values are all kinds of, which makes people a little headache, such as what is the effective contrast:, dynamic contrast:, the highest contrast, etc. If you think the higher the contrast, the better the product, then you are right. Manufacturer’s digital trap.
In fact, these numbers cannot reflect the contrast performance of flat-panel TVs. They are just numbers. The contrast effects of different brands, series, and types are indeed different, but their different sizes are the same. The numbers indicated are not directly related.
For the identification of TV contrast, when purchasing, you can ask the salesperson to put some discs with particularly dark scenes under normal lighting conditions, and adjust the contrast of the TV to the center to see if the details of the picture can be clearly seen. For example, in the night scene, if you look at a black building, can you clearly see it? If the details cannot be distinguished, the contrast of this TV will not be very good in darkness. Then show some particularly bright pictures, such as surfing pictures under strong direct sunlight. Are the faces of athletes and the waves clear? If the details of the picture are lost and only white flowers are seen, then the contrast is not very good. Generally speaking, if the contrast is poor, the color will be severely mutated, losing its color and luster, and its texture and details will be unclear. In this regard, international brands may do better than small and medium-sized brands, high-priced LCDs do better than cheap ones, and small-sized screens are better than large screens.
. Prepare for a rainy day and keep an eye on the service commitment
LCD TV is a relatively high-tech home appliance product, which also means that once there is a quality problem, repairing it is also very troublesome. When purchasing an LCD TV, consumers must learn more about the details of the three-guarantee product from the seller or manufacturer, including: the three-guarantee period for the complete machine, the three-guarantee period for major components, a detailed list of major components, etc. Most manufacturers provide warranty services ranging from 3 years to 3 years. Some manufacturers even provide free door-to-door service and reduction of repair costs during the warranty period. These small details should be clarified before purchasing, and operators should be aware of the three guarantees. The commitment is clearly marked in text on the three-guarantee voucher or invoice.