Miracast Screen Mirroring Standard

In-Depth Explanation of the Miracast Screen Mirroring Standard

Over the years, many different wireless screen technologies have emerged. Although some, like Intel’s WiDi, failed to get significant support from end users, others, like Miracast, have maintained a presence in the market due to their comparatively greater technology adoption. However, have you ever been confused about what Miracast is and how it works? This article will provide you with the information you want on the technology.

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Miracast is a standard for screen mirroring.

Wi-Fi Alliance, the same organization that advocates Wi-Fi technology and licenses Wi-Fi devices for interoperability, also released the Miracast screen mirroring standard. It allows receiving devices such as monitors, TVs, and projectors to display a mirrored screen image from transmitting devices such as smartphones, tablets, and laptops. When used to mirror the Display of one device onto another, Miracast functions similarly to a wireless HDMI connection. Consequently, it does not provide the same level of versatility as Chromecast or Apple AirPlay.

The Wi-Fi Direct protocol, which enables two devices to connect directly without needing a wireless access point, is the foundation upon which Miracast is built. The screen mirroring protocol does not need the use of a wireless network in order to function properly. A video session may be created with just two Miracast-certified devices that can connect directly.

You may share your laptop’s screen on a projector, mirror your smartphone’s Display to a TV or the infotainment system of a vehicle, and do a great deal more in a very short amount of time, all with the help of Miracast.

The Miracast standard was revised in 2017 to support 4K video mirroring in addition to its previous capabilities, including the ability to simultaneously share up to 1080p video and 5.1 surround sound. Having said that, not all devices awarded the Miracast certification can replicate material with a resolution of 4K. Therefore, in most circumstances, you will still have access to a resolution of 1080p.

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Who is behind the Miracast project?

Since Miracast is a standard used across several industries, it may be found in a diverse selection of electronic gadgets. Support for Miracast was first released for Windows 8.1 by Microsoft, and it has since been rolled across to more recent versions, including Windows 11. When using a Windows PC, you may use Miracast to expand your Display to a TV, monitor, projector, or even another computer—which isn’t possible when using a mobile device.

The Android operating system once had support for Miracast; however, Google disabled this feature with the release of Android 6.0 Marshmallow. Miracast isn’t included in standard Android anymore, however, some manufacturers still put it on their products even though Google does not support it. If you are unsure whether or not your device supports Miracast, read the documentation for the device or get in touch with the manufacturer.

Even if your television, monitor, or projector does not support Miracast, you may still add the capability to your device by purchasing a dongle that supports Miracast from a local retailer. Dongles that support Miracast often include USB or HDMI ports that they may be plugged into. Miracast dongles like the Microsoft 4K Wireless Display Adapter, the Microsoft Wireless Display Adapter V2, and the ScreenBeam Mini 2 are popular.

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How to broadcast what’s on your screen using the Miracast protocol

Both of your devices need to be Miracast certified for you to be able to utilize the Miracast protocol for screen mirroring. In most cases, the screen mirroring capability can be found in the Quick Settings menu of an Android smartphone or tablet. This is the case even if you use the device to mirror your screen to a television or another device. If a screen sharing or mirror capability is not accessible via the Quick Settings, you may search for it in the Settings menu under Connected Devices or in the Settings menu under Display.

On a Windows 10 or 11, opening the Action Center and selecting “Connect” from the menu allows you to mirror your screen’s Display. This will display a list of nearby Miracast-compatible screens; choose the receiver device from this menu. Additionally, you can permit inputs via the computer’s mouse and keyboard. Additionally, you can expand your Display without duplicating it by selecting the “Change projection mode” option.

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