Although the sales volume of smart projector market has been rising well in the past two years, the upgrading of products is not so obvious. Especially in terms of resolution and brightness, it can be said that in addition to a slight decrease in price, the product difference between 2019 and 2018 is not particularly large. And it is predicted that the new products in 2020 will not have a breakthrough in brightness. Why?
Why is the upgrade of smart projector not obvious in recent years?
This is mainly because the brightness of LED light source used in smart projector has encountered difficulties. Because the photoelectric conversion efficiency of green LED is low, if you want to improve the brightness, you need to place more green modules. When there are more modules, not only the volume will rise, but also the problems of heat dissipation and cost need to be considered. As a result, the brightness of LED smart projector cannot rise too fast.
In addition, DMD chip used in intelligent projector is also sensitive to brightness. At present, when DMD chips leave the factory, the brightness of intelligent projector is required. Too high brightness may threaten the stability of DMD chip. DMD chips are very sophisticated. 1920x1080 micro mirrors are placed on the size of about 0.3 inch, so it is difficult to upgrade such products.
DMD chip
At present, there is only one manufacturer that can supply DMD chips in the world. That is Texas Instruments, the developer of DLP technology. But Texas Instruments also has a technical bottleneck, so it can't develop products with special performance improvement in a short period of time.
80 inch screen effect is OK
So in general, the problems of brightness and chip lead to the slow upgrade of smart projector. But in fact, the current smart projector can also meet the daily needs of users. Some friends will say that smart projector can't be used in the daytime. In fact, no matter it's smart projector or tens of thousands of yuan project projector, it can't be used in the daytime. This is a problem caused by projector technology.
This is mainly because the brightness of LED light source used in smart projector has encountered difficulties. Because the photoelectric conversion efficiency of green LED is low, if you want to improve the brightness, you need to place more green modules. When there are more modules, not only the volume will rise, but also the problems of heat dissipation and cost need to be considered. As a result, the brightness of LED smart projector cannot rise too fast.
In addition, DMD chip used in intelligent projector is also sensitive to brightness. At present, when DMD chips leave the factory, the brightness of intelligent projector is required. Too high brightness may threaten the stability of DMD chip. DMD chips are very sophisticated. 1920x1080 micro mirrors are placed on the size of about 0.3 inch, so it is difficult to upgrade such products.
DMD chip
At present, there is only one manufacturer that can supply DMD chips in the world. That is Texas Instruments, the developer of DLP technology. But Texas Instruments also has a technical bottleneck, so it can't develop products with special performance improvement in a short period of time.
80 inch screen effect is OK
So in general, the problems of brightness and chip lead to the slow upgrade of smart projector. But in fact, the current smart projector can also meet the daily needs of users. Some friends will say that smart projector can't be used in the daytime. In fact, no matter it's smart projector or tens of thousands of yuan project projector, it can't be used in the daytime. This is a problem caused by projector technology.
