Mobile phone is one of the most dependent electronic products in people's life. Now mobile phones have very powerful functions and can meet a variety of requirements for people's daily needs. However, mobile phones also have certain limitations, the most obvious of which is that the screen of mobile phones is too small. Now many people's TVs are network smart TVs. The content on mobile phones can realize large screen experience through screen projection. However, many people don't know how to operate the mobile screen. The small editor of this article brings you the operation method of mobile screen projection. Friends who need screen projection can learn it together.
1. Projection principle.
If you don't want to know the principle of projection, you can skip this section.
Many years ago, the PC desktop computer case produced by the computer company had a motherboard. In addition to the CPU and memory, there were several empty sockets on the motherboard. These sockets can be used to expand the use of the computer, such as inserting a graphics card and connecting an external display; Insert a card to connect a video recorder & hellip; wait. In order to enable different computer manufacturers to design boards for various purposes for PCs, computer companies have formulated a rule for designing boards. This rule is called PNP protocol (plug and play), which is translated into Chinese as plug and play protocol. If a computer manufacturer designs a board according to such a protocol, the board can work immediately after it is inserted into the computer motherboard.
Later, with the Internet, there were smart devices such as mobile phones and iPads. A person may have multiple smart devices, so what if there is one on one device and you want to play it on another device? So computer experts worked out a new protocol called UPnP (universal plug and play). As long as these devices abide by this protocol, they can share resources. On the basis of UPnP, some large international digital enterprises have established an alliance and formulated the DLNA standard (Digital Living Network Alliance), that is, the digital life network alliance. All devices that comply with this standard can share, audio, pictures and other resources with each other.
So as long as your TV and your mobile phone comply with the DLNA standard, the screen projection can be realized.
2. What are the conditions for screen projection?
Let's talk about the conditions required for screen projection:
① Let's start with the TV. There are two situations. One is that the TV is intelligent. It has a network cable socket, which can be connected to the home router, or it can be connected to the home router through WiFi. Another situation is that the TV is not intelligent. At this time, a box needs to be connected to the TV, such as millet box, barley box and other TV boxes. These boxes are connected to the TV through HDMI cable. For older TV sets, you can connect the TV with AV cable.
② Mobile phones and TV sets (or boxes) need to be connected to the same LAN, that is, they should all be connected to the router at home.
③ The UPnP function should be enabled in the wireless router (it is generally enabled by default)
④ Software with UPnP function should be installed on mobile phones and TV sets (or boxes). There are many such software. I recommend music broadcasting screen projection software. Other software, such as multi screen viewing, can be used. In fact, if your mobile phone supports UPnP function, even if you don't install software such as music broadcast projection, it's OK. For example, apple phones support UPnP, and some Android phones also support it. At this time, just turn on the UPnP (or DLNA) function in the settings of Android phones.
3. Installation of projection software.
Although many people know the above contents, they can't install the projection software, so this section talks about the installation method of projection software.
4. Operation method of screen projection.
The following steps can be followed for screen projection:
① On the TV (or box) side, first run the "music cast screen" software. After running, the introduction of how to use will appear on the TV screen. At this time, the TV itself is also given a name similar to "music cast d0".
5. In case it is difficult to install such software as music broadcast screen projection on the TV, the following describes a method of screen projection using hardware equipment, which is suitable for TV with HDMI interface.
Go to jd.com or buy a small device called TV fruit online. There are two interfaces on this device. One is the power supply interface for inserting USB power supply, and the other is the HDMI interface, which is used to connect the TV.
Then run the software on the mobile phone, and press the prompt to connect the TV to the WiFi signal at home, and then the mobile phone can also search the TV.
Once the above operations are completed, the screen can be projected through the TV software on the mobile phone.