Wednesday, January 26, 2011
【 Weak current College 】 sharpen our optional flat-panel TV can't ignore details---Power By 【 China power house network 】
Refers to the purchase of flat panel TV should start from what place, a lot of friends can be answered, for example, resolution, brightness, contrast, response time, the Visual angle and so on, these answers are correct, for flat-panel TV, these are the need to focus on the problem, of course, price is the primary consideration. However, there are still some small flat-panel TV's details, and flat panel TV show effect compared to the small details when the purchase is really not easy to attract attention, but this does not mean that these details are negligible, flat-panel TV in use, the problem more often it is those places, now or in the future will give consumers a lot of inconvenience, then what kind of detail is neglected and needs our attention when purchasing flat?
Experiencing the most neglected of the remote control
It can be said that almost all consumers, including the author, in the purchase of TV on the remote control only a glimpse of the honk about good is not good to use, and then throw aside, in test TV for several sets, see control menu, nothing more, in fact, the remote control is all part of the most problematic places. The author said remote control most likely to go wrong, because even apart from the quality of the remote control itself, also including some reasons, for instance remote control on the table or sofa accidentally fall on the ground, turned over a glass of water, and he was a child when toys broke ... If you can avoid these situations, after long time use broken total that appears once out of the question?, trouble came.
The small remote control, the trouble really not small
When it comes to remote control the author really is a bitter tears, really feel the deep pain. Previous home buy a Sony 29 inch CRT TV, after several years of use, the most frequently used volume button and toggle key on the front and rear channels doesn't, then other keys also have a problem, and finally had to be sent to overhaul, was told only spend $ 100, and the need to replace 1 week time profile from the factory, while the TV cannot change channels, and later home had to look for a week local stations. Evening Rob TV channels will appear in every home, the author is no exception, and later bought a 21 inch CRT TV, then the remote control also failed to get good at the depot, when you purchase this TV has risen, with specially selected TV channel and volume control model, will not happen again, since I can't look down on the little stuff.
Whether CRT TV or LCD, plasma TV, remote control of the same principle, the infrared emitter issued by infrared remote control signals, via infrared receiver amplification process after it is sent to the microprocessor, the decoding into the appropriate actions after the command, the realization of various features on the TV. Remote control is infrared remote control transmitter, but this section also is not simple, it includes: integrated launch chip, crystal oscillator, sensers, promote the triode, conductive rubber etc, because manufacturers can adopt different parts, if you are using low-cost parts, this small remote manufacturers can not modest cost, but this kind of quality you can imagine the remote control.
The purchase of flat panel TV, it is not possible to disassemble the remote control, can only be identified from the foreign table. Good start with the remote control is very real, and poor remote control typically appear very light, because apart from the inside of the component work really, is that the shell is in different materials, good quality of hard plastic, but the poor are usually used in ordinary plastic. See the combination of upper and lower shell on the remote control how tightly, good combination of very close, bad medicine osteoporosis, fingernails can let it loose. Press the key's feel, not too soft nor too hard, too soft for long time easily sink, but hard to use hard, good press General as long as you need the appropriate intensity can press, good elasticity, rebound intensity. Finally there is a folk remedies that knock on hearing, poor remote control sounds like empty inside, while the good is because work on the remote control, sounds like a solid. Kindly remind, at promotions before, it is best not to use a last resort, it should also not too hard.
Cannot be separated from the rest of the topic screen blinding
Regardless of the purchase of flat-panel TV topic How to change, but never without a screen that an eternal topic, plasma screen or LCD Panel, its cost is accounted for 70% of total costs, would not be difficult for people to pay attention. Consumers in dealing with LCD TV's bad point is also still relatively cautious, usually before purchasing consumer will careful observation screen is bright and dark spots, this is a good habit. Many consumers prefer white screen when looking for a dark, black screen when looking for the highlights, although this practice is correct, but this finding was exhausting and examination of the eyes, here I can give you a little trick: in full green screen when looking for a dark, full blue screen when looking for bright, bright or dark dot very easily noticed.
Selected time didn't find highlights or dark, almost all consumers to put this issue aside, this is a very wrong for two reasons: one is the LCD Panel of the bright and dark spots not only during the manufacturing process produces, in the use process may also be possible, but bad point in case is unable to repair, replacement of the entire screen in order to resolve the issue; second, the transport process of "uncertainty", a consumer electronics chain reaction he chose a bad point of the overseas famous brand LCD TV, pay TV sent after businesses will, once again open the door you find a screen with two dark spots, request a replacement was a merchant refuses to allow the consumers are frustrated.
The Panel will always be inseparable from the subject, largely determines the quality of the product
For LCD pixel problem, still there is no relevant laws and regulations, and industry have an unwritten, liquidCrystal Panel less than 3 (three) highlights, bad point, the LCD is still belong to the normal products, consumers cannot rely on this excuse for a replacement product. In this case, there is no relevant provision of support, even if this kind of problem, businesses do have the right to refuse consumer "unreasonable" requirement, but for consumers, and hope that their purchased product flawlessly, it's a good idea to pay by the bad points and merchant agreement, after all, at this juncture is the consumer has the initiative, and in their monitoring will select the right product packaging, loading until transportation home, do not give any advantage to businesses, not to save a little time, consumers leave after business and home delivery.
Plasma TVs also have bad point of the problem, solution and as mentioned earlier, there is also a need to pay particular attention to the place is the burning screen problems, although some low-quality LCD also has this problem, most of the major or plasma, plasma, for example. Burning screen is screen show the same picture for a long time still picture, left on the screen, because the plasma TV blur uses phosphorescent agent, so this behavior can occur if a user watching the same channel's program for too long, the channel logo may be imprinted in the screen, even when switching channels "shadow" still exists, resulting in permanent imprinting, and consumers have not attracted enough attention. Many manufacturers have adopted a variety of means to resolve this problem, such as preventing burnt pixel technology; promote fluorescent discharge speed and efficiency, as well as the screen instantaneously transform number; or by micro-range pixel location jittering, change to resolve the consumer's best able to purchase with these technical products.
Sound is the issue, the speaker appearance with preferences
Picture quality of the article has already been done, all businesses in improving picture quality area has its own selling points, then blew iffy actually effect that is similar to that in order to increase consumers ' concern for their products, merchants and consumers ' attention to the sound quality. What Surround three-dimensional surround sound, SRS virtual stereo surround sound, BBE sound effects, loudspeaker, dynamics of DDAS digital sound Valley, a wide range of audio decoding chip and engine as designs. But these things apart from the part of professionals and music enthusiasts can read, for ordinary consumers did not bring the actual meaning, in order to enable consumers to understand that the design of the speakers also put up the topic of debate is whether side and horizontal speaker which a sound better?
Side speakers, as its name suggests is a speaker at the sides of the flat panel television, and later appeared in horizontal speaker, speaker is located at the bottom of the screen flat TV instead of traditional sides.
In addition to these two, there is a split-speaker, the sound box and the TV set is not connected, you can separate places, under normal circumstances this speaker can be attributed to the side speakers category. Side speaker has long been a flat panel TV speaker design of main mode, since the advent of horizontal speaker, many horizontal speaker design of businesses advertising side speaker design was already outdated design, have been market and mainstream brand eliminated, horizontal speaker is the international latest most fashionable flat panel designs, and more conducive to the sound quality of protection and the use of side-businesses is sound, the sound from both sides of the issue of mixing resulting better effect, the parties argued, that consumers are at a loss.
Horizontal speaker is in recent years with the flat design of the speakers appeared to make up for a 16: 9 TV screen was elongated of imperfection.
In fact, they would only be half right, time emerge horizontal speaker is relatively late, but it cannot be used as a horizontal speaker sound performance more excellent reasons. Accurate, side-benefits of sound is the appearance, because consumers have been conditioned to the CRT TV era 4: 3 ratio screen, so many of my friends feel screen ratio of 16: 9 in flat-panel TV is a bit of a feeling of being stretched, side speakers covering metal omentum colors and the Panel almost, and together, fuselage up for flat-panel TV screen caused by deficiency of the vision are elongated. Side speaker speakers on either side of the TV set, in line with the CRT TV times people hearing habits and appearance more elongated. Hearing, both of which sound design are the same, when in close range to hear something different, but in a few meters away basically don't recognize what are the differences between them.
No matter what sound design mode, select when you can rely on personal preference, what really matters is the sound performance. Overall, the sound is good or bad and speaker relations closest, using materials and work in the same circumstances, be responsible for the high school bass speakers share of finer, the better the sound quality; the larger the sound performance loudspeakers are also possible. In addition the pros and cons of audio technology also determines the sound is good or bad, the future of digital TV only require audio design is two-channel stereo, at present, the vast majority of products are able to meet the requirements. For consumers, the TV is used primarily to see the usual TV programs, so the human voice is clear and bright is the most important, as for surround sound, bass is good is not a key, after all, the TV sound good, as home theater.
Equipped with HDCP, HDMI interface quite different
We already know the HDMI interface is a flat panel TV's best equipped with one of the important interfaces, as to the advantages and benefits can also be familiar, but consumers often buy when only noticed products for HDMI interface, and does not get to the bottom, for piggyback HDCP or not is not informed, to know HDMI interface with HDCP and not piggyback is very different. HDCP (HighBand-widthDigitalContentProtection) is a high bandwidth digital content protection technology, is a subsidiary of Intel subsidiary is responsible for research and development, mainly protection based on the Interne digital multi-media video copyrighted, essence is the digital signal encryption andDecryption technologies.
This shows that the purpose of the HDCP exists is to encrypt the anti-piracy, its protection system consists of three parts, one is the authorized certification agreement, data encryption and decryption, the third is the self-renewal, including self update is the biggest features HDCP, view past DVD copy-protected disadvantages, HDCP with automatic update system, the number of compromised and obsolete information will vary with the disc, the TV signal and Internet communication, allowing the system to encrypt information any time upgrade update, prevent the proliferation of illicit devices. Now equipped with HDCP is HDMI and DVI, HDMI and HDCP system is not as it must be forced to pick up the device, but rather treat it as an optional part, which makes the current market flatscreen-TV, some with a HDMI HDCP, and some will not.
Now not only is the HDMI interface
DVI connector also began with HDCP
With HDMI, now more and more States are beginning to enforce some devices with HDMI interface with HDCP system enforced, in particular future HDDVD and Blu-ray DVD popular later, all the major film companies and high-definition video manufacturer from own copyright interests will require HD drive and HD display device equipped with HDCP system to ensure that the output of the digital image signals are not pirated. Some consumers may ask, then later buy drive time note HDMI with HDCP not just fine? this is incorrect, HDCP on copyright protection mechanism is two-way, request signal is issued and accepted devices are equipped with this system, CD player and flat-panel TV is not recoverable, play no role.
After all, the HDMI interface with HDCP exactly what are the benefits to consumers? there is for the future, the current high-definition video is on the Internet, these high-definition video will not need device equipped with HDCP, and future HDTV receivers, DVD and Blu-ray, HD HDDVD player popularity, and is fitted with the Vista operating system computer playing encrypted HD programmes, are to be HDCP support. Now more and more LCD monitor DVI interface is equipped with the HDCP HDCP has featured is the trend. If your flat-panel TV's HDMI interface was not equipped with HDCP, the future is not HD drive support, and now with an HDMI interface, HDCP will not be on the high-definition video playback with no impact to not selected, believe that the consumer can see at a glance.
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