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Why are there bright spots in the fingerprint recognition area when I use the in-screen fingerprint sensor to unlock my phone?
| Why are there bright spots in the fingerprint recognition area when I use the in-screen fingerprint sensor to unlock my phone? |
Problem:
There are bright spots in the in-screen fingerprint sensor area when the user uses their fingerprint ID to unlock the screen.
Cause:
In-screen fingerprint sensors adopt the optical fingerprint recognition technology, which is mainly based on the refraction and reflection principles of light. Therefore, as the light source, your screen needs to increase its luminance to help generate fingerprint images.
The bright spots are visible to human eyes and are of the same brightness as the screen when the ambient environment is well-lit.
Solution:
If you are not satisfied with the in-screen fingerprint unlock, try other screen unlock methods, such as password unlock and face unlock.
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