在大多数情况下，当他们想将电视用作扩展显示器时，人们会将一根长 HDMI 电缆(a long HDMI cable)从计算机连接到电视机。这是最简单的解决方案，但是当有很多无线解决方案时，谁愿意在房间内铺设电缆呢？
您可能会认为使用Chromecast设备进行投射是唯一的或最首选的解决方案。但这并不完全正确。如果您没有Chromecast设备，那么您也不会不走运。
在本文中，您将了解其他四种无需使用 Chromecast(using a Chromecast)投射即可将电视用作显示器的方法。
使用无线 HDMI
将电视用作扩展显示器的最简单方法之一是使用无线发射器和接收器套件，无论显示器在房间内有多远。
您可以将此小型设备插入计算机的HDMI端口，将另一个插入电视的HDMI端口。
发射器（在您的计算机上）通过 5 GHz无线信号将视频和音频信号发送到接收器（在您的电视上）。这个频率减少了来自屋内其他无线设备的干扰机会。
这些设备中的大多数都与Windows和Mac计算机兼容，并支持高清音频和视频流。
然而，这些设备并不便宜。它们中的大多数them cost over $100，是Google Chromecast设备成本的两倍。话虽如此，设置起来更加容易和快捷，并且不需要任何复杂的 Wi-Fi 设置即可使其正常工作。
购买智能电视
拥有无线扩展显示器的最简单但可能最昂贵的解决方案之一是购买智能电视。
虽然智能电视(Smart TVs)表面上看起来很贵，但如果您购买一台，请考虑您不必购买的所有设备。
- 无线流媒体棒
- 无线 HDMI 适配器
- 用于连接到 Internet 连接的电线和适配器
智能(Smart)电视随附您连接到WiFi网络所需的一切。连接后，您会发现无需任何额外硬件即可无线连接到这些电视。
这要归功于这些电视(TVs)直接内置的Miracast 技术(Miracast technology)，并且默认情况下可在Windows和Android设备上使用。
使用这项技术很容易。在您的 Windows 10 PC 上，只需选择任务栏右侧的操作中心（通知图标）。(Action Center)在弹出菜单中选择项目。(Project)
在下一个窗口中，选择连接到无线显示器(Connect to wireless display)。接下来，您将看到无线可用的设备列表。您会看到您的任何智能电视(Smart TVs)都显示在此列表中。
只需选择该显示器或显示器，您的 Windows 10 PC 就会将该智能电视(Smart TV)用作扩展显示器。
在Samsung Android上，您可以使用Smart View应用程序连接到支持 Miracast 的显示器。在非三星安卓(Androids)设备上，您可以用两根手指向下滑动并选择“屏幕投射”(Screen cast)按钮。
如果您拥有Apple设备，您可能知道Miracast不是一个选项。如果是这种情况，您仍然可以通过购买Apple TV 流媒体设备和较便宜的非智能电视来使用(Smart)智能(Smart)电视解决方案。
使用 Roku 或亚马逊火棒
Chromecast并不是将电视用作显示器的唯一投射解决方案。市场上有与Miracast技术兼容的竞争性流媒体设备。
采用这种投射技术的两种领先的流媒体设备是Roku TV和Amazon Fire Stick。
Ruku流媒体设备为您提供的不仅仅是将电视转换为扩展显示器的能力。它还使您可以访问各种内容和几乎所有典型的在线流媒体帐户，例如Netflix、Amazon Prime和Hulu。
要设置Roku设备，您只需通过随附的HDMI电缆将其插入电视上的HDMI端口。(HDMI)它带有一个遥控器，因此您可以感觉自己正在像普通有线电视订阅一样浏览频道。
亚马逊火棒(Amazon Fire Stick)的工作方式大致相同。这款支持Alexa的设备可让您观看Netflix、YouTube、Prime Video，当然还可以使用Alexa技能和应用程序。
Amazon Fire Stick不需要HDMI电缆，因为您将其直接插入电视HDMI端口。
最重要的是，Amazon Fire Stick让您可以使用Miracast技术从 Windows 10 PC 或Android设备投射扩展屏幕。
要使用这些设备中的任何一个将电视用作显示器，请使用与上述相同的方法连接到智能(Smart)电视。只需(Just)从可用无线设备列表中选择Roku或Amazon Fire Stick设备。
使用笔记本电脑和 Miracast
如果您不想购买任何新设备，但碰巧有一台备用笔记本电脑或台式电脑可供使用，您仍然可以将电视用作扩展显示器而无需投射。
要使用此技术，您将需要以下各项：
- 第二台笔记本电脑或台式机
- 从 Windows 10 计算机连接到电视HDMI端口的HDMI电缆(HDMI)
- 已安装最新的Windows更新
将您的 PC 显示器作为扩展显示器扩展到电视上只需几个简单的步骤。
- 打开第二台笔记本电脑或台式机的电源，并确保它作为自己的显示器连接到电视。
- 选择主电视上的操作中心(Action Center)，选择项目(Project)，然后选择第二台笔记本电脑或台式机。
- 连接后，您可以调整该(adjust the display settings)附加扩展显示器的显示设置。
您会注意到，只需三个简单的步骤，您就可以将电视用作扩展显示器。这种方法不需要购买任何智能电视或流媒体设备。当然也不需要Chromecast设备。
您选择的方法取决于您必须花多少钱，以及您是否希望在购买智能(Smart)电视或流媒体设备等设备中包含扩展功能。
How To Use Your TV As an Extended Monitor Without Casting
In most cases, when they want to use a TV as an extended monіtor, people will run a long HDMI cable from their computer over to the TV set. That’s the easiest solution, but who wants to run a cable across the room when there are plenty of solutions to do this wirelessly?
You may be thinking that casting using a Chromecast device is the single, or most preferred, solution here. But that’s not entirely true. And if you don’t own a Chromecast device, you’re not out of luck.
In this article, you’ll learn about four other ways you can use a TV as a monitor without casting using a Chromecast.
Use Wireless HDMI
One of the easiest ways to use a TV as an extended monitor, no matter how far away the monitor is in the room, is by using a wireless transmitter and receiver kit.
You can plug this small device into the HDMI port of your computer, and the other one into the HDMI port of your TV.
The transmitter (on your computer) sends the video and audio signal to the receiver (on your TV) via a 5 GHz wireless signal. This frequency reduces the chances of interference from other wireless devices in the house.
Most of these devices are compatible with both Windows and Mac computers, and support high definition audio and video streaming.
However, these devices are not cheap. Most of them cost over $100, which is twice the cost of a Google Chromecast device. With that said, it’s much easier and faster to set up, and doesn’t require any complicated Wi-Fi setup to get it working.
Buy a Smart TV
One of the easiest, but probably the most expensive, solutions to having a wireless extended display, is purchasing a smart TV.
While Smart TVs may appear expensive on the surface, consider all of the devices you don’t have to purchase if you buy one.
- Wireless streaming sticks
- Wireless HDMI adapters
- Wires and adapters to connect to an internet connection
A Smart TV comes included with everything you need to connect to your WiFi network. Once connected, you’ll find that you can also wireless connect to these televisions without any additional hardware.
This is thanks to Miracast technology built directly into these TVs, and available by default on Windows and Android devices.
Using this technology is easy. On your Windows 10 PC, just select the Action Center (notification icon) at the right side of the taskbar. Select Project in the pop-up menu.
In the next window, select Connect to wireless display. Next, you’ll see a list of devices that are available wirelessly. You’ll see any of your Smart TVs show up in this list.
Just select that monitor or display and your Windows 10 PC will use that Smart TV as an extended monitor.
From a Samsung Android, you can use the Smart View app to connect to Miracast-enabled displays. On non-Samsung Androids, you can swipe down with two fingers and select the Screen cast button.
If you own Apple devices, you may know that Miracast isn’t an option. If that’s the case, you can still use the Smart TV solution by purchasing an Apple TV streaming device combined with a less expensive non-Smart television.
Use a Roku or Amazon Fire Stick
A Chromecast isn’t the only casting solution for using a TV as a monitor. There are competitive streaming devices on the market that are compatible with Miracast technology.
The two leading streaming devices with this casting technology are Roku TV and the Amazon Fire Stick.
Ruku streaming devices give you a lot more than just the ability to convert a TV into an extended monitor. It also gives you access to a variety of content and nearly all of your typical online streaming accounts like Netflix, Amazon Prime, and Hulu.
To set up the Roku device, you just have to plug it into the HDMI port on your TV via the included HDMI cable. It comes with a remote control so you can feel like you’re flipping through channels like a regular cable subscription.
The Amazon Fire Stick works in much the same way. This Alexa-enabled device lets you watch Netflix, YouTube, Prime Video, and of course use Alexa skills and apps.
The Amazon Fire Stick doesn’t require an HDMI cable because you plug the stick directly into the TV HDMI port.
Most importantly, the Amazon Fire Stick lets you use Miracast technology to project an extended screen from your Windows 10 PC or Android device.
For using a TV as a monitor using either of these devices, use the same approach as above for connecting to a Smart TV. Just choose the Roku or Amazon Fire Stick device from the list of available wireless devices.
Use a Laptop & Miracast
If you don’t want to purchase any new devices, but you happen to have a spare laptop or desktop PC to use, you can still use your TV as an extended monitor without casting.
To use this technique, you’ll need each of the following:
- A second laptop or desktop
- An HDMI cable connected from your Windows 10 computer to the TV HDMI port
- The latest Windows updates installed
Extending your PC’s display to the TV as an extended display only takes a few simple steps.
- Power on the second laptop or desktop and make sure it’s connected to the TV as its own display.
- Select the Action Center on your primary TV, select Project, and choose the second laptop or desktop.
- Once connected, you can adjust the display settings for that additional extended monitor.
You’ll notice that in just three simple steps, you can use the TV as an extended monitor. This approach requires no purchase of any smart TV or streaming devices. And certainly no Chromecast device required as well.
The approach you choose depends on how much money you have to spend, and whether you want the extended features included in purchasing devices like a Smart TV or streaming devices.
