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Well, I'm sure it's cool to use. However, I don’t think any companies will use mobile phones as shields. Even if it is done, how can the user bring? Then, how do you want to use a large screen and carry it conveniently? 
It is better to add an accessory, such as a projector, a smaller projector, preferably in a pocket, just like Huayang P2.
Huayang P2 smart phone projector is a micro projector recently launched by Huayang ADAYO. Its size is only 2/3 of the size of the iPhone 6, and it can be held easily. It is very convenient whether it is placed in a pocket or in a bag. 
Look at the next packaging, double high-pressure cardboard box, inside and outside the box has a perfect fit, there are shock-absorbing sponge inside the lid, effectively reducing the probability of damage during transport. 
Huayang P2 smart phone projector includes projector 1, bracket 1, English manual 1, USB charging cable 1, charging plug 1, Samsung mobile phone adapter plug 1, MHL cable 1. From the accessories, basically taking into account all your use of the environment. 
There are four buttons on the left side of Huayang P2, including the power switch, sound plus, minus, and Miracast/DLNA function switching keys. There are also power indicator lamps and charging indicator lamps on the side of the rear side. 
The right side of Huayang P2 is a focus adjustment button that can adjust the focus of the projector. 
Huayang P2's tail is MHL/HDMI interface, DC (USB) transfer interface. 
Huayang P2 can use the DLNA, Miracast, Airplay, MHL, HDMI push function to enlarge the phone screen. There are two main connection methods: MHL connection and WiFi connection. Huayang P2 starts the default Miracast function, and can switch to DLNA function through the (M/D) switch key. 
MHL connection is relatively simple, as long as the smart phone and boxwood P2 link can be achieved through the MHL cable. So our main test here is WiFi connection.
In particular, the smart device connected to P2 must support DLNA or Miracast functions.
When using DLNA mode, it can be local content push or online video push. To use online video push, you need to set up a router. 
First of all, open the phone WiFi, connect "Foryou-P2-", then, open the phone browser and visit 192.168.49.1, click on the network settings icon, scan the wireless router, connect the available WiFi after the filing on the line. 
For local sharing, you only need to open the mobile phone WiFi, connect "Foryou-P2-", and then you can push content through the mobile phone's own DLNA function. Of course, if your phone does not have DLNA push functionality, you need to install a third-party DLNA application. 
For iPhone/iPad/itouch users using IOS system, after connecting “Foryou-P2-xxxxxxâ€, you need to open the AirPlay interface, connect and open the image, and you can synchronize the content on the phone to Huayang P2. .
In use, Xiao Bian found that the use of Huayang P2 is indeed simple and easy to carry. Because this is an engineering machine, Xiao Bian found many problems in use.
First of all, there is a great deal of deficiencies in terms of heat dissipation. In the half-hour trial period of Xiaobian's trial, the operation of the internal fan can be clearly heard, but the body is still hot;
Secondly, the protective case, which is fixed on the triangle bracket, has a beautiful design, but it also blocks the buttons on the side of the camera, especially the adjustment of the focal length;
Again, the three-legged stent design is not perfect, more flexible, less fixed, it is prone to loose instability.
To sum up, Huayang P2 satisfies people's demand for big screens, and it has strong practicality, but details still need more effort.
Huayang P2 phone projector hidden in the pocket
Remember the slogan of iPhone6 ​​Plus? "Biger than biger". But is 5.5-inch screen really Bigger? No, of course not. Maybe a little bigger, such as 6.0 inches, 6.3 inches, or simply a little, zooming in 80 times the screen of the phone you are using now.