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Although the brightness of the laser TV is still difficult to contend with the ordinary LCD TV, but the shock effect of the large size is unmatched by ordinary TV. If you decide to purchase laser television, then the following four key points need attention.
Home children have to buy products 
In fact, this function is very simple. It is equipped with an infrared device near the lens. Once it senses that something is close to the lens, it will automatically go out. Many people think that this function is often misused, but especially for users with children at home, especially when the baby is just learning to walk, this feature is very necessary, it can avoid the direct light into the eyes The situation occurred.
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.
Closer to the lens, the light concentration and brightness are very high, and the child's eye structure is still under development. Strong light may directly pierce the eyes and even cause sequelae.
Interface equipped and auto focus 
According to observations, most of the short focal length laser projections on the market are still manually adjusted. Do not think that laser television can be enjoyed forever when it is tuned. Not only occasionally insert a U disk, even a HDMI easy to touch, home projectors are inevitably "thermal defocus" phenomenon.
The so-called "thermal defocus" is commonly referred to as running coke. Refers to: the projector just work about half an hour in the early period, the projector internal temperature and ambient temperature gradually reached thermal equilibrium, the lens with the temperature changes in a slight deformation, resulting in the phenomenon of blurred projection screen. That is, the lenticular lens suffers from thermal expansion and contraction due to heat, resulting in a change in focal length.
The number and type of interfaces determine the devices that can be connected. At a minimum, the number of commonly used devices such as HDMI and USB should be at least two. Since laser televisions are ultra-short-focus products, the back of the fuselage is very close to the wall surface, so it is often not possible to see where the interfaces are when connecting other devices. If the number of interfaces is too small, switching between different devices can only be done by plugging and unplugging, which is even more troublesome, especially for projectors without autofocus.
Don't ignore the light curtain 
For users who have attached wallpaper or brushed a special color paint, they will basically buy anti-light cloth, anti-light board and other ancillary products when they buy a laser TV. Large white wall users will save money.
In fact, the screen of the factory's trademark is not just used to project a picture, but it has the effect of resisting the ambient light. It can be said that in addition to the brightness of the machine itself, the function of the anti-light curtain can not be ignored.
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 method, its essence is to overcome the interference of ambient light, and project the light more to the eyes of the user. 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. With the absence of a professional light curtain, the biggest difference to the actual experience is whether the image can be seen during the day.
Keystone correction is better than physical adjustment 
Focusing is stronger than manual. However, when changing to trapezoidal correction, the manual one is stronger than the electric one. The so-called trapezoidal correction, that is, when the laser television is placed horizontally, or when there is a certain deviation in the vertical angle, because the focal length is short, the screen will obviously project a non-rectangular quadrilateral.
With the built-in trapezoidal correction function of the system, although the screen can be returned to the quadrilateral, it will actually lose the resolution of the output. In other words, there are 4,000 pixels in the horizontal direction. After software adjustment, the display may become 3800 pixels, and the remaining 200 pixels do not project light. Physical adjustments can solve this problem, and unlike focusing, the number of readjustments is relatively small. 
Smart TV/box information can focus on smart TV information network sofa butler (http://), China's influential TV box and smart TV website, providing information, communication, TV boxes, smart TVs, smart TV software, etc. Answering questions.
This year's CES, the display technology competition can be described as lively. LCD TV backlight area control and dynamic adjustment has become the standard for high-end products; OLED screen speaker technology has penetrated into more brands; 8K, Micro LED technology that can not be produced within a few years also come to hot spots.