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Hello everyone, I'm iambillbil. In the past few years, I have played a lot of tablets or mobile phones. There are various ways of connecting these devices to the big screen. Here, I'd like to introduce you to the mobile phone or tablet screen connected to the big screen. Several common methods. 
Mode 1: The simplest or most traditional approach is wired connection. Cost 99 yuan.
For common dual-system tablets, or laptops, most digital devices come with an HDMI output, whether it is a full-size HDMI jack, a mini-HDMi jack, or an M-HDMI jack. When the device screen is played on a large screen, the easiest way is to directly use the HDMI connection device and the large screen. The advantage of this method is that it does not require much setup, as long as the connection is available. The disadvantage of this model is that there is a long tail from the handheld device to the big screen. At present, even mobile phones, whether it is the previous M-usb jack phone, or the new TYPE-C jack phone, many devices support wired output hardware protocol. Through the socket converter, the TV can be wired. 
Mode 2: wireless video transmission receiver, cost 299 yuan.
In the year before last year or last year, the performance of handheld devices was not so aggressive. There were many closed wireless video transmission protocols. They played for different devices, used a wireless connection mode, and used a mobile phone or tablet as a wireless transmitter. The wireless video receiving device's hardware device is inserted above the large screen to achieve wireless video picture synchronization.
The introduction of wireless video transmitters and receivers includes several mainstream technologies. However, due to the high price of the products, it has not been favored by consumers. Early technology has developed many technical bottlenecks with the development of the times, such as video signals. Not handled in time. Received signals may have problems such as delays.
Technology One: DLNA Transmission Mode
The DLNA receiver is one of the cheapest wireless video transmission modes at present, and the hardware receiver is also in the tens of dollars. This product must work with specific software, such as Tencent video and Sohu video software. However, most of the time, such as game screens, such as document screens, when this type of software does not have built-in DLNA functionality, the wireless screen-casting function cannot be activated. 
? Technology II: AIRPLAY transmission mode
If you do not have Apple TV, then you also need to purchase an AIRPLAY receiver for AirPlay image acceptance. When the AIRPLAY receiver is connected to the same network as your Mac computer or iPhone or tablet, the AirPlay logo will be displayed. After pressing the logo, the screen will be output synchronously through AIRPLAY. This technology is only for Apple devices. 
? Technology III: Chromecast transmission mode
For Microsoft device users, then you need to buy a Chromecast receiver as the receiving hardware. Then open the Chrome web browser on the Microsoft device, install the Google Cast extension, and synchronize the display of the computer screen onto the TV. 
Technology 4: WIDI transmission mode
For intel tablet users, then you need to buy a WIDI receiver for receiving hardware. Then in the PC system with the wireless search hardware. After successful adaptation, the computer screen is displayed on the television synchronously. In addition to the same screen, it can also be used as a wireless extension display (and handheld devices display different screens) Devices that support WIDI transmission theoretically also support mircast, but only theoretically, in practice, because I have contacted more devices 100 models, so the actual incompatibility or the ability to search for hardware but the chance of success or failure is actually very large. The WIDI receiver is one of the most expensive devices, but the technical standard is still relatively good. It can successfully transmit wireless video at a resolution of 1920x1080 and can achieve picture synchronization at any time. 
? Technology V: miracast transmission mode
For most Android phone users, the miracast receiver acts as a receiver. The miracast receiver can wirelessly transmit any picture displayed on your phone, whether it be games, documents, videos, or pictures. It is the most widely used hardware mode. In theory, the compatibility should be higher than that of the previous WIDI receiver. However, because I have contacted more than 100 devices, I have contacted more than 6 wireless hardware receivers, resulting in me actually In the case of too many hardware and hardware adaptation failures, the use of hardware, if chosen well, naturally all goes well, but there is still the concept of compatibility. There are also many devices that cannot be connected. 
Mode 3: Software with screen mode, cost 0 yuan.
Because the time is progressing too fast, the popularity of smart TVs and the large number of TV boxes, the most important reason is that the core chips of TV boxes or smart TVs are now running directly from 4 to 8 or even 10 cores, and your handheld device configuration Compared with previous years, it has become very unusual. Eight cores and 10 cores are small CASEs. Coupled with the WIFI router configuration and bandwidth parameters compared with the previous products are advanced several grades, so pure software wireless screen technology came into being. And in front of the hardware reception mode winner, 0 cost, it is easy to play.
The most common screencast APP should still have a lot, such as: TV assistant; this software is mainly for a single video playback software to play. The function is also relatively simple. 
WPS projection treasure; mainly for the mobile phone terminal WPS document editing software, used to connect the phone inside the word or ppt file and your smart TV or set-top box, is made for document demonstration. 
The software has a wide range of screencasting capabilities, and the most widely used products are music player screens.
For example, this smart TV has a built-in music player screen function. 
Of course, you can also manually install the music screencast function in your smart TV or TV box. Both Android and ios platforms can be installed. 
The mobile or tablet side can be equipped with a launch part app. It also supports Android and ios dual platforms. 
The mobile phone or tablet is used as a transmitter. After the app is started, the connection to the large screen can be completed through simple settings. More intelligent and stupid. Just click on the corresponding device name. 
After launching the app supports videos, pictures, documents, games and other types of programs to screen to the big screen. 
Video screening effect, in order to achieve the best fluency or choose to 1280x720 resolution. 
The effect of picture screencast is because it is a still picture. In this mode, you can choose 1920x1080 to get a more shocking effect. You can share your travel experience with family and friends, or the small animated gif in your circle of friends, let the whole family laugh. . 
Simple document effects. 
For the screen-casting effect of the game, because of the wireless screen-casting mode of the software, the consumption of system resources is still relatively high. Most of the time, the wireless screen-casting is only suitable for playing under the relaxed mini-games, such as playing with small birds and cutting watermelons. , Or play cool run, raise your head to play, do not bow down. 
Conclusion:
In the use of music broadcast screen wireless software transmission mode, there is no cost, suitable for anytime, anywhere, but if you want to protect the smooth picture, the router is best to support 5GHz band, the best transmission device configuration is best, and the best No higher than 1920x1080 screen resolution, and the TV box or smart TV used by the receiving end need to be configured more mainstream because it needs to decode the video encoding from time to time.
In the use of hardware and software transmission mode, if you want to protect the smooth screen at all times, the receiver's hardware is better to be relatively high-grade, the antenna is relatively high-performance, the chip decoding capability is more reliable, I played 299 yuan netware, for compatibility and For the identified device, it is still good.
thank you all.
From hardware to software leap, the mobile phone screen "fly" into the big screen
From the hardware to the software leap, the mobile phone screen "fly" into the big screen, iambillbil