According to the data from Ove Cloud Network, as of the third quarter of 2017, sales of laser TVs have increased by 224%, and more and more users have chosen to use laser TVs to look at the big screen at home.
There are also many friends around the author who choose to put a laser television in the living room. In addition to praising the immersion of the large screen of the laser television, there is naturally a lot of Tucao on weekdays, but the point of their spit is very special, I am afraid it is People who have not bought laser televisions will not be concerned.
Today, the author came to chat with you about these users of these humble pain points, hoping to help you buy laser TV.
Do not ignore the light curtain
Many friends think that laser television is a machine, but this is not the case. According to the definition of laser television in the "laser television evaluation standard 1.0" of Zhongguancun Online, the laser television is a reflective ultra-short focal projector with a laser light source. More than inches of solution-type products with anti-light screen and sound.
The host, the anti-light curtain, and the sound can all be less. Perhaps the following friend's situation can make everyone better understand the definition of "solution type product".
A friend of mine told me that the brightness of the laser TV was not enough. During the daytime, the picture could not be clearly seen in the living room. However, he used this laser television personally reviewed the measured ANSI brightness is very high, the user in the bright living room is completely no problem.
What's going on here, aren't the machines sent by manufacturers different from sales?
Afterwards, he only asked if he knew that the screen was useless when he bought the machine. The wall of the home was also large enough. Therefore, he did not purchase the anti-light curtain, but he shot the screen on the white wall of the living room.
In this way, the truth is revealed that the screen of the factory's trademark is not merely used to project a picture, but it has the effect of resisting the ambient light. It can be said that the function of the anti-light curtain cannot be ignored except for the brightness of the machine itself.
Anti-light curtains are different according to the principle of light resistance. They have the use of physical structures to achieve light-resistance effects, and they also use optical coatings to achieve light resistance. But no matter what kind of way it's essence is to overcome the interference of ambient light, the projected light is more refracted into the user's eyes.
Correspondingly, the white wall is the effect of diffuse reflection, that is, when the light shines on the white wall, it will refract around, and the brightness of the natural picture will become lower.
In addition, the laser television is placed on the TV cabinet and is projected obliquely upwards. The angle between the emitted light and the screen is very small, and the ambient light is emitted from all directions to the screen. Therefore, the angle between them is larger. The anti-light curtain design A unique optical structure can reflect ambient light with a larger angle of view outside the imaging angle, so it can provide the user with a projection screen that is not affected by ambient light.
After listening to my explanation, the old man had to spend a few thousand dollars to buy a light curtain. Therefore, for a friend who wants to purchase a laser TV, the money saved by the light curtain cannot be saved. It can bring you a higher brightness screen and ensure that you can watch normally in a bright environment.
Information screen function can better protect eyes
The so-called information screen function is to install an infrared detection device on the host of the laser television. Once it is sensed that someone is close to the laser television, it will be automatically black screen to avoid the occurrence of strong light directly into the eye.
Many friends scoff at this feature and even believe that the screen function affects their daily use. However, this feature is useful for users with children at home, especially if your baby is just back in the walk.
Children who have just learned to walk feel fresh about everything and want to find out in the past what they see. Adults at home cannot look at them all the time. It is inevitable that there will be distractions.
It is very likely that the “Little Patriarchs†have put their eyes on the light source of the laser television. It is necessary to know that the brightness of the light source is very high in such a close distance, and the children’s eye structure is still under development. It is likely to stab your eyes and even leave sequelae.
So if your baby is just born or has a plan for a child in the near future, then I strongly recommend that you purchase a laser television with an information screen when you purchase a laser TV.
Interface design is inhumanity
The types of laser television interfaces are very rich now, and HDMI, USB and VGA interfaces have become the standard for each. In addition, the products at the interface locations are all similar, and are all behind the fuselage.
As a result, problems have arisen. Since laser televisions are ultra-short-focus products, the distance between the back of the fuselage and the wall surface is very close. Therefore, the interface is often not visible when connecting other devices.
With the advancement of technology, people's output devices are also increasing, from the Blu-ray player to the game consoles need to be connected with the laser television, and so many devices can not be directly on the laser television. Users often turn on the cables when they need to use them, which is very troublesome.
If you move the fuselage, the machine is too heavy to say, and the above-mentioned focusing problem will appear, and it will end up in an endless loop. More than one friend complained to me that the design was too impersonal, and even some friends questioned “Does these manufacturers themselves use laser televisions at home?†I listened unbelievably.
Of course, there are also some manufacturers have found this problem, the HDMI, USB and other common interfaces installed in the side of the fuselage, and such as audio input and other commonly used interfaces designed on the back of the fuselage.
The author thinks this kind of design is reasonable, and also shows the humanity even more. For a friend who buys a laser TV, the interface location is also something you need to pay attention to.
The so-called information screen function is to install an infrared detection device on the host of the laser television. Once it is sensed that someone is close to the laser television, it will be automatically black screen to avoid the occurrence of strong light directly into the eye.
Manual focusing is inconvenient
According to the author's observation, most of the laser television products on the market today are manually focused. Many friends often respond to the author. Compared with traditional TVs, manually adjusting the focal length is too cumbersome. As a technology product with a price of 10,000 yuan, this performance is obviously unsatisfactory.
Although there are not many situations in which mobile TVs need to be moved during daily use, it will inevitably occur that moving the machine will occur. Some laser televisions still use the fixed-focus projection mode, which means that if the user wants to adjust the focus, they must move. The machine can find the right projection position.
To know that the weight of a laser television is a few tens of pounds, and it cannot be moved for female friends. This experience has brought troubles to many laser television users.
In addition, due to the principle of the projector, after a long period of use, the definition of the screen will always change a little, so the laser television will perform a focusing operation at regular intervals.
In the field of micro-projection, the auto-focus function has become a standard feature, so I believe that the laser TV should also have auto-focus function to meet the user's daily use. For the user, I recommend that you think twice before purchasing a fixed-focus laser TV product.
The appearance of laser television has not been for several years. The entire market is still in the stage of exploration and various standards are still not perfect. Zhongguancun Online only launched its first laser TV industry standard "laser television evaluation standard 1.0" at the end of last year.
As the main product of the future family's big screen, the whole laser television industry still has a lot of things that need to be regulated and clear. Some functions may not meet the requirements of users, but there is no way to do this. After all, any industry will experience such a thing. process.
For the majority of consumers, in addition to hard indicators such as brightness and color when purchasing a laser TV, similar details such as information screen function and autofocus can also be ignored. They will have a major impact on your daily experience. Everyone must choose the most suitable laser television product.
WARNING!
Do not plug two or more meters together!
IMPORTANT
Don't plug in an appliance where the load exceeds 16 Amp. Always ensure the plug of any appliance is fully inserted into the meter outlet. If cleaning of the meter is required, remove from mains power and wipe meter with a dry cloth.
KEYBOARD DEFINITION
1). SET: Set price with button UP.
2). MODE: Exchange display state.
3). UP: Set price combined with button SET.
GENERAL FEATURES
1).Display line power.
2).Display and memory accumulative total power quantity.
3).Display and memory total power charge of price.
THE DATA DISPLAY
Press MODE button the data displays as follows:
W →KWh →PRICE →COST/KWH
↑_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _↓
1). Plug in socket and power on, the meter will display real power.
2). Press MODE button once again and release, the meter will display accumulative KWh.
3). Press MODE button once again and release, the meter will display total power charge.
4). Press MODE button once again and release, the meter will display COST/KWH.
SETTING PRICE OF COST/KWH
1). Press SET button during display COST/KWH,the first digital COST/KWH flash, press UP button to set it.
2). Press SET button once again and release, the second digital COST/KWH flash, press UP button to set it.
3). Press SET button once again and release, the third COST/KWH flash, press UP button to set it.
4). Press SET button once again and release, the fourth COST/KWH flash, press UP button to set it.
5). Press SET button once again and release, the radix point COST/KWH flash, press UP button to set it.
DATA CLEAR
Press and hold MODE button for 5 seconds will clear KWH,PRICE and COST/KWH data.
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