Dramaqueen
Member
Now more and more people have abandoned the TV and started to use the projector . According to many investigations, the viewing effect of the projector is better than that of the TV, but many netizens hold objections.
The advantages of the projector
1. Save space
Space saving, most consumers choose projectors because they can project a larger picture in a smaller space. To obtain the largest possible projection area, in addition to using a wide-angle lens, one of the most important methods is to increase the projection distance as much as possible.
2. Low requirements on the projection screen
The requirements on the projection screen are low, and the front projection method relies on the projection screen to reflect the light, so unless the image requirements are harsh, as long as the general projection screen can meet the requirements, even some people use white walls. Therefore, the front projection method has very low requirements on the projection screen, and the flexibility and environmental adaptability are stronger. That is to say, the front projection method can be selected without hesitation in most occasions.
The shortcomings of the projector
1. Affect the environment
Because the projector is on the same side as the audience, the appearance, interfaces, and wiring of the projector are all exposed. Even a projector with wireless network connection can only reduce the part of the wiring related to the network connection, and most of the basic wiring can not be saved. Whether it is a home, a classroom, an office, or a presentation room, the numerous and messy wiring will be very unsightly. Therefore, the front projection projectors generally use ceiling mount to solve this problem.
2. Noisy
Although the noise of the projector is normal under normal working conditions, the audience is on the same side of the projector, and the distance is too close obviously makes the noise problem a factor that must be considered.
The advantages of TV
1. Environmental protection
Green and environmentally friendly, the non-radiation liquid crystal display has no radiation at all, and only a small amount of electromagnetic waves from the drive circuit, as long as the enclosure is strictly sealed, the electromagnetic waves can be excluded. Therefore, liquid crystal displays are called cold displays or environmentally friendly displays. There is no screen flicker in LCD TVs, which is not easy to cause visual fatigue.
2. Low power consumption and long service life
According to the industry standard and the usage time is 4.5 hours per day, the annual power consumption is converted. The 30-inch LCD TV is used to replace the 32-inch CRT TV, which can save 71 kilowatts per year. The service life of an LCD TV is generally 50,000 hours, which is much longer than that of an ordinary TV.
Disadvantages of TV
1. The response rate is very optimistic
The shortcomings of the TV set are that the display response speed is very good due to the technical advantages of the traditional display. TFT LCDs are less optimistic due to their display characteristics (low temperature does not work properly and there is a reaction time).
2. Longer response time
The response time of the LCD is relatively long, so it does not perform well in terms of dynamic images. Display quality. The display screen of the traditional display uses phosphors, which are displayed by hitting the phosphors with electron beams. Therefore, the brightness of the display is brighter than that of the liquid crystal transmissive display (using fluorescent lamps as the light source).
Editor's note: The projector is different from the TV. It is a system. The environment, sound, curtain, film source, etc. are all factors that must be considered. They are indispensable. It is not like the TV is home and connected to the power cord. Just connect the TV signal cable, so it is not recommended to use a projector at home just to watch TV.
The advantages of the projector
1. Save space
Space saving, most consumers choose projectors because they can project a larger picture in a smaller space. To obtain the largest possible projection area, in addition to using a wide-angle lens, one of the most important methods is to increase the projection distance as much as possible.
2. Low requirements on the projection screen
The requirements on the projection screen are low, and the front projection method relies on the projection screen to reflect the light, so unless the image requirements are harsh, as long as the general projection screen can meet the requirements, even some people use white walls. Therefore, the front projection method has very low requirements on the projection screen, and the flexibility and environmental adaptability are stronger. That is to say, the front projection method can be selected without hesitation in most occasions.
The shortcomings of the projector
1. Affect the environment
Because the projector is on the same side as the audience, the appearance, interfaces, and wiring of the projector are all exposed. Even a projector with wireless network connection can only reduce the part of the wiring related to the network connection, and most of the basic wiring can not be saved. Whether it is a home, a classroom, an office, or a presentation room, the numerous and messy wiring will be very unsightly. Therefore, the front projection projectors generally use ceiling mount to solve this problem.
2. Noisy
Although the noise of the projector is normal under normal working conditions, the audience is on the same side of the projector, and the distance is too close obviously makes the noise problem a factor that must be considered.
The advantages of TV
1. Environmental protection
Green and environmentally friendly, the non-radiation liquid crystal display has no radiation at all, and only a small amount of electromagnetic waves from the drive circuit, as long as the enclosure is strictly sealed, the electromagnetic waves can be excluded. Therefore, liquid crystal displays are called cold displays or environmentally friendly displays. There is no screen flicker in LCD TVs, which is not easy to cause visual fatigue.
2. Low power consumption and long service life
According to the industry standard and the usage time is 4.5 hours per day, the annual power consumption is converted. The 30-inch LCD TV is used to replace the 32-inch CRT TV, which can save 71 kilowatts per year. The service life of an LCD TV is generally 50,000 hours, which is much longer than that of an ordinary TV.
Disadvantages of TV
1. The response rate is very optimistic
The shortcomings of the TV set are that the display response speed is very good due to the technical advantages of the traditional display. TFT LCDs are less optimistic due to their display characteristics (low temperature does not work properly and there is a reaction time).
2. Longer response time
The response time of the LCD is relatively long, so it does not perform well in terms of dynamic images. Display quality. The display screen of the traditional display uses phosphors, which are displayed by hitting the phosphors with electron beams. Therefore, the brightness of the display is brighter than that of the liquid crystal transmissive display (using fluorescent lamps as the light source).
Editor's note: The projector is different from the TV. It is a system. The environment, sound, curtain, film source, etc. are all factors that must be considered. They are indispensable. It is not like the TV is home and connected to the power cord. Just connect the TV signal cable, so it is not recommended to use a projector at home just to watch TV.
