智能手机和平板电脑提供了一种方便且理想的方式来访问内容以供移动使用，但对于在大屏幕电视上观看仍有一些话要说。
您可能正在手机上观看某些内容，并希望在更大的显示屏上看到它或与房间里的其他人分享。
值得庆幸的是，智能手机和平板电脑具有多任务处理功能，例如听音乐、游戏和流媒体视频。它们中的大多数还将计算机的功能打包在便携式设备中，这包括将其连接到另一个屏幕或监视器（例如电视）的能力。
Android和 iOS 设备用户拥有大量设备和无线选项，可将手机或平板电脑连接到电视。在本指南中，我们将向您展示如何通过USB将手机或平板电脑连接到电视。
将手机或平板电脑连接到电视的原因(Reasons To Connect Your Phone or Tablet To a TV)
您可以通过无线方式（例如屏幕投射或使用Google Chromecast等设备）轻松地在电视上查看手机或平板电脑的显示，但USB到电视的连接有多种好处。
如果您正在玩游戏并且想将手机镜像到电视上，那么USB连接可以减少您在使用无线配置时遇到的延迟。在没有WiFi(WiFi)或无线信号较弱的情况下，它也会派上用场，这意味着您需要有线连接才能连接到互联网。
或者，您可能希望显示一些照片供房间中的其他人查看、以更高分辨率流式传输视频或在更大的屏幕上观看内容。在这种情况下，从您的手机连接到电视的USB将帮助您在电视上查看文件（如图片），因此如果您的电视有(USB)USB输入，您的手机将充当存储设备。
如果您使用的是智能电视，则很容易连接到互联网应用程序，因为这些应用程序内置在设备中。对于其他电视(TVs)，您可以使用流媒体设备(use streaming devices)或机顶盒在电视上播放您喜爱的内容。
通过 USB 将手机或平板电脑连接到电视(Connect Your Phone or Tablet to Your TV Via USB)
您可以使用不同的方法通过USB将移动设备连接到电视，例如使用适用于Android的(Android)USB数据线或适用于 iOS 设备的Lightning数据线、 (Lightning)Mobile High-Definition Link ( MHL ) 或SlimPort。
让我们看看这些方法如何在电视上镜像您的手机或平板电脑的屏幕。
Android –使用 USB 数据线(Using a USB Cable)
对于Android设备，USB数据线可以帮助您将手机或平板电脑连接到电视，前提是它具有USB端口。如果您要连接到智能电视，请转到Source>USB以启用文件传输，而不仅仅是通过电视为手机或平板电脑充电。
当您想在兼容的电视上查看文件或照片时使用此方法，因为它从技术上传输文件以在电视上打开。
使用适配器或电缆连接(Connect With An Adapter Or Cable)
当您想将屏幕镜像到电视上以在屏幕上传输显示时，此方法适用。您可以使用HDMI适配器或电缆将手机连接到电视并在屏幕上镜像内容。
USB转HDMI适配器是最简单的选择，因为您只需将适配器插入手机并将HDMI(USB)电缆(HDMI)插入其中即可连接到电视并通过手机观看。检查您的手机是否支持HDMI Alt Mode，它可以输出视频。
某些Android设备具有微型或迷你HDMI端口，可通过单根电缆直接连接到HDMI，因此在连接设备之前检查您的电缆是否兼容非常重要。
连接转换器(Connect With a Converter)
转换器可让您在为电池充电的同时将手机屏幕镜像到电视上。此方法涉及使用充电器和HDMI电缆将转换器插入 USB-C 端口和HDMI端口，您的屏幕将投射到您的电视上，只要您愿意。
使用 MHL 连接(Connect Using MHL)
移动高清链接(Mobile High-Definition Link)协议允许兼容的智能手机或平板电脑( compatible smartphones or tablets)连接到电视。使用MHL通过USB将手机或平板电脑连接到电视的一般设置要求您拥有支持MHL且兼容的手机或平板电脑、HDMI和电源线、USB到HDMI MHL电缆或适配器，以及带HDMI输入的显示器.
如果您的手机支持MHL，请将其连接到HDMI MHL适配器并连接HDMI线，然后连接到您的电视。不用担心您的手机或平板电脑电池没电了，因为这种适配器有一个充电端口，因此您可以在观看时为您的设备充电。
使用 SlimPort 连接(Connect Using SlimPort)
MHL是通过(MHL)USB将手机或平板电脑连接到电视的最佳方式之一，但您也可以使用SlimPort电缆，它的工作原理与MHL类似，因为它可以将内容从您的设备传输到电视显示器，但输出不同。
MHL和SlimPort都是即插即用的，但MHL仅限于HDMI视频输出，而SlimPort通过HDMI、VGA、DisplayPort和DVI工作。这意味着您可以将它用于各种显示器，包括没有数字输入但有VGA的旧电视。
SlimPort和MHL在供电方面也有所不同；前者不会从您的设备中获取电力，而后者会，这就是为什么您需要使用MHL方法连接电源线的原因。
要使用SlimPort，您需要兼容的设备、SlimPort适配器或电缆（取决于您的设备）、带HDMI、VGA、DisplayPort和DVI输入的显示器，以及视频电缆。
将SlimPort适配器插入手机，然后使用正确的电缆将其连接到电视，您就可以在电视上查看屏幕了。
使用 DLNA 应用程序进行流式传输(Stream With a DLNA App)
如果使用电缆不适合您，请使用DLNA应用程序将您的手机或平板电脑连接到电视。
DLNA是大多数联网电视(TVs)都支持的流媒体协议，您可以通过该协议将媒体文件从手机或平板电脑流式传输到电视，前提是这些文件没有DRM功能。
您可以使用的一些优秀的DLNA应用程序包括免费的(DLNA)LocalCasts或AllCast并将您的媒体文件流式传输到DLNA设备。
与三星 DeX 连接(Connect With Samsung DeX)
DeX连接适用于三星 S8(Samsung S8)或更新的旗舰手机，以及三星 Galaxy Tab S4(Samsung Galaxy Tab S4)。但是，对于 S8、Note 8、S9 和 S9+，您需要一个扩展坞、为手机和扩展坞充电的电源线、HDMI电缆以及一台带HDMI输入的电视才能使用DeX连接。
其他三星(Samsung)设备，如Note 9和Galaxy Tab S4或更新型号仅需要Type C到HDMI电缆即可分别进入DeX模式和DeX桌面模式。
iOS –使用闪电数据线(Using a Lightning Cable)
此过程类似于通过USB将您的(USB)Android手机或平板电脑连接到电视，不同之处在于您需要一根Lightning数据线，该数据线因您的 iPhone 型号而异。
大多数人都有带闪电(Lightning)接口的 iPhone 5 或更新机型，但对于HDMI输出或VGA连接，您需要分别使用闪电数字 AV 适配器(Lightning digital AV adapter)或闪电转 VGA 适配器(Lightning to VGA adapter)。
对于 iPad，所有型号都使用用于 iOS 到 TV 连接的Lightning电缆，除了 iPad 3 和更早版本使用 30 针电缆，但您将根据显示器的输入选择数字 AV 或VGA适配器。(VGA)
有许多第三方电缆，但如果您想观看 Netflix或Hulu等视频流服务，或(watch video-streaming services like Netflix)DirecTV或Comcast Xfinity等点播视频，它们中的大多数都不起作用。它们缺乏HDCP（高带宽数字内容保护(High-bandwidth Digital Content Protection)），可防止盗版者捕获内容。
插入适配器并将视频输出连接到电视，您的屏幕将镜像到显示器。请记住(Remember)将数据线的USB端插入适配器，另一端插入电源，因为它需要充电才能播放。
注意：(Note: )适用于 iOS 设备的数字 AV 适配器有两种型号，用于不同的用途。(Digital AV Adapter)一个将您的 iPhone 或 iPad 连接到具有HDMI输出的电视，而VGA适配器插入与VGA兼容的外围设备，因此请务必选择正确的版本。
连接 DLNA 应用程序(Connect With a DLNA App)
与Android一样，您可以使用(Android)DLNA应用程序将您的 iOS 设备连接到支持互联网的电视，以流式传输视频或音乐等媒体。对于从 iTunes Store购买的视频和音乐，您将无法使用DLNA应用程序流式传输具有 DRM 限制的内容(stream content with DRM restrictions)。
使用DLNA应用程序的好处是，它仍然可以在您的计算机等其他设备上查找媒体，并设置流式传输到您的游戏机(set up streaming to your game console)、电视或另一台 PC，而无需转换视频或安装特殊编解码器即可工作.
结论
尽管通过USB(USB)将手机或平板电脑连接到电视的方法因设备、连接和显示输入而异，但一旦您知道需要什么以及如何设置它就不会太难了。
How To Connect a Phone Or Tablet To Your TV Via USB
Smartphones and tablets рrovide a convenient and ideal way of accessing content for on-the-go use, but therе stіll remains something to be said for viewing on a big screen television.
You may be watching something on your phone, and want to see it on a larger display or share with others in the room.
Thankfully, smartphones and tablets are built with multitasking capabilities such as listening to music, gaming, and streaming video. Most of them also pack the power of computers in a portable device, and this includes the ability to connect it to another screen or monitor, such as your TV.
Android and iOS device users have an arsenal of devices and wireless options to connect a phone or tablet to a TV. In this guide, we’re going to show you how to link up your phone or tablet to your TV via USB.
Reasons To Connect Your Phone or Tablet To a TV
You can easily view your phone or tablet’s display on a TV by wireless means such as screen casting or using devices like Google Chromecast and others, but a USB to TV connection is beneficial in various ways.
If you’re gaming and want to mirror your phone to a TV, a USB connection reduces lag that you’d experience with a wireless configuration. It also comes in handy where there’s no WiFi or the wireless signal is weak, which means you need a wired connection to get connected to the internet.
Alternatively, you may want to display some photos for others in the room to see, stream videos in higher resolution, or watch content on a larger screen. In this case, a USB to TV connection from your phone will help you view your files like pictures on your TV, so your phone acts as a storage device if your TV has a USB input.
If you’re using a smart TV, it’s easy to connect to internet apps as these are built into the device. For other TVs, you can use streaming devices or set top boxes to get your favorite content up on the TV.
Connect Your Phone or Tablet to Your TV Via USB
There are different methods you can use to connect your mobile device to a TV via USB such as using a USB cable for Android or Lightning cable for iOS devices, Mobile High-Definition Link (MHL), or SlimPort.
Let’s look at how each of these methods work to mirror your phone or tablet’s screen on your TV.
Android – Using a USB Cable
For Android devices, a USB cable can help you connect your phone or tablet to your TV, provided it has a USB port. If you’re connecting to a smart TV, go to Source>USB to enable file transfers, instead of just charging the phone or tablet via the TV.
This method is used when you want to view files or photos on a compatible TV as it technically transfers your files for opening on your TV.
Connect With An Adapter Or Cable
This method works when you want to mirror your screen onto your TV to transmit the display on-screen. You can use an HDMI adapter or cable to connect your phone to a TV and mirror the content on your screen.
A USB to HDMI adapter is the easiest option as you simply plug the adapter to your phone and plug the HDMI cable into it to connect to your TV and watch from your phone. Check that your phone supports HDMI Alt Mode, which lets it output video.
Some Android devices have micro or mini HDMI ports for direct connection to HDMI over a single cable, so it’s important to check whether your cable is compatible before connecting your devices.
Connect With a Converter
A converter allows you to mirror your phone’s screen to your TV while charging its battery at the same time. This method involves plugging the converter into a USB-C port and HDMI port using your charger and HDMI cable, and your screen will be cast onto your TV for as long as you want.
Connect Using MHL
The Mobile High-Definition Link protocol allows compatible smartphones or tablets to connect to a TV. The general setup for using MHL to connect your phone or tablet to a TV via USB requires you to have an MHL-enabled and compatible phone or tablet, HDMI and power cable, USB to HDMI MHL cable or adapter, and a display with HDMI input.
If your phone supports MHL, connect it to the HDMI MHL adapter and attach an HDMI cable, and then connect to your TV. Don’t worry about your phone or tablet battery running out of juice, because this kind of adapter has a charging port so your device can charge while you watch.
Connect Using SlimPort
MHL is one of the best ways of connecting your phone or tablet to your TV via USB, but you can also use a SlimPort cable, which works similar to MHL as it serves content from your device to your TV display except its outputs are different.
MHL and SlimPort are both plug-and-play, but MHL is limited to HDMI video output, whereas SlimPort works via HDMI, VGA, DisplayPort and DVI. This means you can use it for various displays, including older TVs that don’t have digital inputs, but have VGA.
SlimPort and MHL also differ in power supply; the former doesn’t draw power from your device, while the latter does, which is why you need to connect a power cable with the MHL method.
To use SlimPort, you’ll need a compatible device, SlimPort adapter or cable (depending on your device), display with HDMI, VGA, DisplayPort and DVI input, plus a video cable.
Plug the SlimPort adapter to your phone, and attach it to your TV using the right cable and you can view your screen on your TV.
Stream With a DLNA App
If using cables doesn’t work for you, use a DLNA app to connect your phone or tablet to your TV.
DLNA is a streaming protocol supported by most internet-connected TVs through which you can stream media files to your TV from your phone or tablet, provided the files don’t have DRM features.
Some good DLNA apps you can use include LocalCasts, which is free, or AllCast and stream your media files to a DLNA device.
Connect With Samsung DeX
DeX connectivity works with Samsung S8 or newer flagship handsets, and the Samsung Galaxy Tab S4. However, for S8, Note 8, S9 and S9+, you need a dock, power cable to charge the phone and dock, HDMI cable, and a TV with an HDMI input to use DeX connectivity.
Other Samsung devices like the Note 9 and Galaxy Tab S4 or newer models merely require a Type C to HDMI cable to enter DeX mode and DeX desktop mode respectively.
iOS – Using a Lightning Cable
This process is similar to connecting your Android phone or tablet to TV via USB, except you’ll need a Lightning cable, which differs with your iPhone model.
Most people have an iPhone 5 or newer with a Lightning connector, but for HDMI outputs or VGA connections, you need a Lightning digital AV adapter or a Lightning to VGA adapter respectively.
For iPads, all models use the Lightning cable for iOS to TV connections, except the iPad 3 and older use the 30-pin cable, but you’ll pick either a digital AV or VGA adapter depending on your display’s input.
There are many third-party cables but most of them don’t work if you want to watch video-streaming services like Netflix or Hulu, or on-demand video like DirecTV or Comcast Xfinity. They lack HDCP (High-bandwidth Digital Content Protection), which protects against pirates capturing the content.
Plug in the adapter and connect video output to your TV and your screen will mirror to the display. Remember to plug the USB end of the cable into the adapter and the other end to a power source, as it needs to be charged to play.
Note: The Digital AV Adapter for iOS devices comes in two models, serving different purposes. One connects your iPhone or iPad to a TV with HDMI output, while the VGA adapter plugs into VGA-compatible peripherals, so be sure to pick the right version.
Connect With a DLNA App
Like Android, you can connect your iOS device to internet-enabled TV using DLNA apps to stream media such as videos or music. For videos and music purchased from iTunes Store, you won’t be able to use a DLNA app to stream content with DRM restrictions.
The good thing about using a DLNA app is that it’ll still find media on other devices like your computer and set up streaming to your game console, TV, or another PC without having to convert a video or install special codecs for it to work.
Conclusion
Although the method of hooking up your phone or tablet to your TV via USB varies based on the device, connection, and display input, it isn’t too hard once you know what’s required and how to set it up.
