WiDi (Wireless Display), a wireless display technology launched by Intel, once occupied a pivotal position in the early stage of wireless screen mirroring. Based on the Wi-Fi Direct protocol, this technology enabled wireless mirroring transmission of computer content, laying a solid foundation for the development of subsequent wireless display technologies.

The core technologies of WiDi include: H.264 real-time video encoding and compression, peer-to-peer wireless direct transmission, and low-latency optimization algorithms. Its workflow is as follows: the computer graphics card captures the screen image and encodes it, then transmits the encoded data to the receiving device via the wireless network card for decoding and display. It supports 1080P resolution, with latency controlled at the millisecond level.

WiDi was mainly applied in scenarios such as wireless presentations in business meetings, home audio-visual entertainment, education and training, and digital signage display. Its stability and image quality performance were once favored by enterprise users.

With the advancement of technology, WiDi has gradually been replaced by industry standards such as Miracast. However, its innovative value in the history of wireless display technology cannot be ignored, and it has provided important references for subsequent technologies.

Although WiDi has completed its historical mission, understanding its technical principles helps us better grasp the development context of wireless display technologies.