In the 4K national popularity, some fake 4K also began to mix in. For a time, the debate on genuine and fake 4K was fully sounded. Li Lan is still a Li Gui. Dear friends, do you share clearly? Today we come to a true 4K PK.
Is 4K or "approximately 4K"? The color TV market has recently been "true and false 4K" dispute. "Recently in China, Southeast Asia and other places to launch the use of 3K panels of "economical UHD TV" companies have increased dramatically." Some industry insiders said, "Some low-cost UHD TV uses RGBW panel variant panel, is the industry's open secret ."
Survey: The same is 4K, the effect is not the same
Recently, the reporter found in Suning Erqi Square Store that the 4K TV's propaganda placards are the most eye-catching, and they are all equivalent to Ultra HDTV (UHD). Samsung, LG, Sony, Hisense, Skyworth and other mainstream TV manufacturers all use 4K as their main product. Among them, the main size is 55 inches and 65 inches.
However, even in the middle of the store, the reporter quickly discovered that there are obvious differences in the picture quality of some 4K TVs. Mr. Wang of the store salesman explained that the picture quality of the 4K TV is related to the film source, even if it is 4K TV. When playing a 2K film source, the effect it presents is no different from that of a 2K TV. In addition, when playing the same 4K film source, domestically produced TVs do not have a good effect on foreign TV products such as Samsung and Sony. "It may be that domestic television is not technically mature abroad," the salesman said.
Consumer Wang Ning told reporters that he was prepared to buy a 4K TV, but after switching to the mall, he discovered that the same 4K TV, the visual presentation of the store's presentation screen was also inconsistent, and he could find that different products were different in color performance, clarity and brightness. . For example, similar to the people's images, some 4K TVs have sharp edges and some are slightly blurred.
In fact, in 2014, the China Household Electrical Appliances Association pointed out that so-called "approximate 4K" televisions appeared on the market, and its panel resolution could not reach 3840×2160, which triggered a round of debate in the industry.
Zhang Hong, deputy director of the Digital TV Standard Compliance Testing Center at the Ministry of Industry and Information Technology, said that only TV products that can receive, process, and display 3840×2160 pixel resolution can be said to be 4K products. This is an implication. 4K†TV, NPDDisplaySearch LCD TV analysis director Yang Jingping revealed: “In order to reduce the cost of 4K panels, panel makers have developed a 4K specification panel called RGBW or GreenUHD, which began shipping in the second quarter of 2014. Many products are currently available. In the application of this type of panel." So, where is the difference between these two types of panels?
Secret: Technology is different and costs vary
According to industry insiders, the so-called 4K TVs currently on the market are actually technically different on the screen. "Color TV display pixels consist of three types of sub-pixels: red (R), green (G) and blue (B). RGB is also called the three primary colors. These three primary colors show all colors through matching of different proportions." One technique, RGBW, adds W, which is white, to RGB.
According to reports, in April 2014, the China Household Electrical Appliances Association pointed out: “In order to save material costs, there are fake 4K on the market. Although the number of sub-pixels is the same as 4K, it is not a true 4K. Consumers should pay attention when buying. "Industry data show that China is the country with the largest UHD TV sales in the world, and it is also a country with a high proportion of RGBW TVs.
The price of 3K products is about 15% lower than that of 4K products, because the RGBW mode can reduce the number of backlight components and can reduce the cost of materials. TVs using low-priced RGBW panels will be able to obtain additional profits at the same price level as competing companies' 4K products.
Source: China's lack of 4K TV standards
In fact, this kind of approximate 4K TV has caused a lot of controversy abroad. The United States and Europe have implemented strict consumer protection standards and the "RGBW Panel UHD" view has gained the upper hand. In China, the world’s largest market, there is currently no official certification standard for 4K TVs. Even the aforementioned association standards are merely targeted at consumers’ purchasing suggestions. It is difficult for companies to form a binding force, resulting in the lack of standards. There is a gap in supervision.
Reminder: How to buy, there are three strokes
The China Household Electrical Appliances Association has introduced a way to distinguish between genuine and fake 4K TVs: a false 4K color is blurred, and when viewed with a magnifying glass, white lines can be seen. A shopping guide of Suning Appliance stated that there is currently a LCD screen that has been widely dismissed as a fake 4K screen in the industry. This type of screen uses WRGB technology and has a total of only 6 million pixels. When choosing a TV, consumers should pay attention to whether the word "WRGB" is included in the product description. If so, it can be determined as a cottage 4K.
"It depends on whether the TV has a 4K video source." The person in charge of Xiaomi TV told reporters that because 4K sources are difficult to find, many consumers have high hopes for 4K TV. The truly "predictable" 4K TV brand not only has a good TV product, but also follows content services. If manufacturers can provide film sources for free, they can attract more consumers to purchase, and at the same time, they are also confident in the quality of their products.
Although 4K is already popular nowadays, many of them are quite a few people. When you are buying, you must keep your eyes open and make a distinction between true and false 4K.
Electronic Lock Motor product introduction:
Electronic Lock Motor, also known as Intelligent Lock Motor, Belong to small reducer series, the main structure composed of drive motor (motor) with a reduction gear box, composed of a shaft connection, form integrated motor reducer; Drive motor is purchasing product, reduction gear box is customized according to the project product demand, the maximum power under 10 w, maximum voltage up to 12 v, below 25 mm diameter size.
Functions: it is widely used in various intelligent locks, such as Shared bicycle lock, fingerprint lock, glass lock, safe lock, hotel lock, family lock, inductive smart lock, etc
Features:China Electronic Lock Motor is based on micro precision reducer development, small intelligent micro precision reducer can do 10 mm in diameter, is widely used in safe, locks, smart locks, sensor intelligent lock;
This kind of motor has the characteristics of low noise, low energy consumption, small volume, light quality, high precision, large torque and durability
Method of use: the best stable in horizontal plane, installed on the China Electronic Lock Motor output shaft parts, cannot use a hammer to knock, knock prone to press into the dc Electronic Lock Motor drive, may cause damage to internal components, and cannot be used in the case of blocked.
Operating temperature range:
Electronic Lock Motor should be used at a temperature of -10~60℃.
The figures stated in the catalog specifications are based on use at ordinary room temperature catalog specifications re based on use at ordinary room temperature (approximately20~25℃.
If a electronic Lock Motor is used outside the prescribed temperature range,the grease on the gearhead area will become unable to function normally and the motor will become unable to start.Depending on the temperature conditions ,it may be possible to deal with them by changing the grease of the motor's parts.Please feel free to consult with us about this.
Storage temperature range:
China Electronic Lock Motor should be stored ta a temperature of -15~65℃.
In case of storage outside this range,the grease on the gearhead area will become unable to function normally and the motor will become unable to start.
Service life:
The longevity of Electronic Lock Motor is greatly affected by the load conditions , the mode of operation,the environment of use ,etc.Therefore,it is necessary to check the conditions under which the product will actually be used .The following conditions will have a negative effect on longevity.Please consult with us should any of them apply.
â—Use with a load that exceeds the rated torque
â—Frequent starting
â—Momentary reversals of turning direction
â—Impact loads
â—Long-term continuous operation
â—Forced turning using the output shaft
â—Use in which the permitted overhang load or the permitted thrust load is exceeded
â—A pulse drive ,e.g.,a short break,counter electromotive force,PWM control
â—Use of a voltage that is nonstandard as regards the rated voltage
â—Use outside the prescribed temperature or relative-humidity range,or in a special environment.
â—Please consult with us about these or any other conditions of use that may apply,so that we can be sure that you select the most appropriate model.
when it come to volume production,we're a major player as well .each month,we rurn out 600000 units,all of which are compliant with the rohs directive.Have any questions or special needed, please contact us, we have the engineer group and best sales department to service to you
Looking forward to your inquiry. Welcome to our factory.
Electronic Lock Motor
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Shenzhen Shunchang Motor Co., LTD. , https://www.scgearmotor.com