| 摘要 |
Disclosed are a method and device to lock a screen, and a mobile terminal. The method comprises: monitoring the change condition of a TIS; and when the value of the TIS is equal to or lower than a TIS threshold value, transmitting an instruction to lock a screen, so as to allow the screen to enter a dark screen state. In the case of not adding other devices, the method accurately realizes an operation of locking a screen of a mobile terminal, and solves the problems in the prior art that the realization of locking a screen by means of photo sensation increases the cost of a mobile terminal, and will affect the sensitivity of GPS in the screen locking process, thus prolonging the positioning time. |
