What if the projector is not HD?

If you find that the picture is not clear enough when using the projector, you can take the following measures to solve this problem:

1. Adjust the resolution of the projector: Check the resolution setting of the projector to ensure that it is the same as that of the computer or mobile device. This can prevent the picture from being stretched or compressed, thus maintaining clarity.

2. Avoid light interference: If the surrounding environment is too bright or there is strong sunlight interference, it will affect the image quality of the projector. Try to avoid light interference or adjust the brightness of the lights to keep the picture clear.

3. Adjust the projection mode: Different projection modes can have different effects. Try to adjust the projection mode of the projector, such as static projection and dynamic projection, in order to obtain better picture performance.

4. Replace the projection lens: The projection lens is also a key factor affecting the clarity of the projector. If your projection lens is damaged or aging, you can consider replacing it with a new projection lens to get better picture effect.

5. Update the graphics card driver: Check whether the graphics card driver of your computer or mobile device needs to be updated, and ensure that the graphics card driver of your computer or mobile device is the latest to ensure that the picture remains clear.

Generally speaking, there are many reasons why projectors are not high-definition, and you can adjust them from the above aspects. If you still can't solve the problem, it is recommended to find a professional to test and repair.