1. Open the mobile phone WeChat and select "I" in the lower right corner, as shown in the figure:

2. Click the small arrow on the right side of the avatar, as shown:

3. Select "Name" in the personal information, as shown:

4. Fill in the name in the input box and click Save, as shown in figure:

In this way, when others scan your WeChat QR code, your name is displayed instead of your WeChat screen name.