LCD TV has become an indispensable household appliance for every family. How to keep your TV in good working condition for a longer period of time, I believe every family wants to know. Below I will introduce to you the ten guidelines for protecting LCD TVs.
Rule 1: Do not display still pictures for a long time. It is best to turn it off when it is not used for a long time, or reduce the brightness, otherwise it is easy to appear dead pixels. Some people used to press the "Pause" button when watching DVDs and walked away halfway, which actually caused serious damage to the screen.
Rule 2: Use the recommended resolution. For LCD TVs with adjustable resolution, use the recommended resolution to present the best picture. This is also a kind of protection for the screen.
Rule 3: Avoid scratching and hitting the LCD screen. The LCD screen is very fragile, and direct contact or impact can easily cause damage to small circuits and devices. Many people often point their fingers at the screen, which is a bad habit.
Rule 4: Prevent condensation on the screen. Moisture can cause electrical leakage and short circuits, and even burn the TV, so keep it dry. Even if you are not watching TV, you must turn on the power regularly to get rid of the moisture in the machine. In case of condensation, the user should ask the manufacturer to help solve the problem. Never let strong light directly illuminate the LCD screen to avoid premature aging.
Rule 5: Wipe carefully. If you find dust on the screen, wipe it with a slightly damp soft cotton cloth. Chemical fiber fabrics are not available. If it is dirty, use a special cleaner. It should be noted that never spray cleaner directly onto the screen surface. In addition, frequent scrubbing is also detrimental to the screen.
Rule 6: Do not disassemble and repair without authorization. Even if a small piece of metal scraps off the LCD TV, it may cause serious consequences. Moreover, some components in the background lighting component have a high voltage of about 1000 volts, which may cause harm to human bodies. In addition, unauthorized disassembly of the TV will also lead to the failure of after-sales service.
Rule 7: Pay attention to keeping the TV dry. TV sets have high technical content. Although they can work in a humid environment, they can only be said to "work as usual", not "normal work." After all, moisture damages TV sets. Therefore, even if you do not watch TV for a long time, it is best to turn on the power regularly to allow the heat generated by the display to drive the moisture out of the machine.
Rule 8: Clean the screen properly. If the screen is dirty, it is best to use a professional cleaning agent. Of course, it is also possible to wipe it gently with a soft cloth dipped in a little water, but do not use too much water. Water entering the LCD will cause a short circuit on the screen. If you notice fog on the LCD, you should wipe it off with a soft cloth in time before turning on the power.
Rule 9: Avoid hitting the screen. The reason is simple, but it is also very important. The LCD screen is very fragile, to avoid strong shocks and vibrations.
Rule 10: Never disassemble the LCD yourself, even when it is not plugged in. Because it has been turned off for a long time, the CFL inverter in the background lighting assembly of the TV may still carry a high voltage of about 1000 volts, which can cause serious personal injury.
LTE CAT4/CAT6 Definition
The full name of LTE CAT is LTE UE-category, which is broken down to explain :LTE refers to 4G LTE network, UE refers to user equipment, and Category is translated as level. Smooth interpretation is the level of 4G LTE network transmission rate that user devices can support, which can also be said to be a technical standard for 4G network speed. Therefore, LTE CAT4/CAT6 means that the user device LTE network access capability level is 4 or 6.
Since the level is different, then its capabilities are certainly not the same, let's take a look at LTE CAT4/CAT6 affect what performance, respectively, what level. Simply put, LTE CAT affects the upper limit of 4G LTE uplink and downlink network speed, which is generally referred to as the maximum upload and download speed that a user device can achieve.
There are not only 4 and 6 levels in LTE CAT, but the table above is our list of currently known LTE CAT levels and the corresponding maximum transmission speed. Among them, LTE CAT4/CAT6 is also the current network transmission technology level of 4G mobile phones, while the faster CAT7 and CAT8 are still in the laboratory stage and have not been commercially developed.
Phones and chips that support LTE CAT4/CAT6
As far as the current 4G mobile phone market is concerned, most mobile phone products are CAT4 technology, and only a small number of new mobile phones use CAT6 technology, such as Huawei Honor 6, Samsung Galaxy S5 advanced version and LG G3 Cat6, and the concept of LTE CAT6 is proposed by Huawei Honor 6.
For the mobile phone LTE CAT4/CAT6 standard, it is directly linked to the mobile phone chip, or, if you know the processor of the mobile phone, you know which technology the mobile phone uses. For the current 4G mobile phone chips, only Huawei Kirin 920 and Qualcomm Snapdragon 805 processors for LTE CAT6, before this 4G chips are LTE CAT4, the future and Kirin 930, Qualcomm Snapdragon 808/810 will support LTE CAT6. Mediatek won't have LTE CAT6 chips until the second half of next year.
Qualcomm Snapdragon 805, 808, and 810 also support LTE CAT6
It is worth mentioning here that Qualcomm Snapdragon 805 and Kirin 920 are not the same in chip design, the LTE CAT6 baseband of Snapdragon 805 is an external Gobi MDM9x35, while Kirin 920 is a direct SoC integration, and the chip is integrated, this point Kirin 920 has ultra-high integration. It has certain advantages in power consumption and cost. As a leading international communications company, Huawei's strength can not be underestimated, but also the pride of our people.
The actual use value of LTE CAT6
Upload, download speed is our use of mobile Internet access the most concerned performance, but it should be clear that the LTECAT standard is the 4G transmission speed limit, and can not improve the transmission speed, in the operator's 4G network speed has not reached the next standard, simply raising the limit is meaningless. At present, the 4G networks of domestic operators are all LTE CAT4 standards, and the peak download speed is 150Mbps, but it is difficult to reach the upper limit of LTE CAT4 in practical applications, and even to reach 100Mbps is very difficult, so at this stage LTE CAT6 has no use value.
In terms of real life applications, LTE CAT6 is not as beautiful as we think. We can do a calculation, according to the formula 1MB/s=8Mbps, the maximum download speed of LTE CAT4 is 18.75MB/s, such a download speed, for 1080P video online playback has no pressure, even 4K online film source still can not occupy such a large bandwidth, So LTE CAT6 has no use either.
To sum up, LTE CAT6 does not have much use value at this stage, and the term is only a gimmick of manufacturers, until the operator 4G standard reaches LTE CAT6, I believe that LTE CAT6 equipment has long been popular. So as for whether the phone is LTE CAT4 or LTE CAT6, you don't have to care.
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