Display screen controlling method and apparatus

1. A display screen controlling method, comprising:

obtaining a first gamma value according to a turn-on instruction for an under-display device sent by an application processor;

comparing a gamma value of a first display region to the first gamma value; and

switching the gamma value of the first display region corresponding to the under-display device to the first gamma value when the gamma value of the first display region is different from the first gamma value, so as to turn off a plurality of light-emitting pixels of the first display region;

obtaining a second gamma value according to a turn-off instruction for the under-display device sent by the application processor, wherein the second gamma value is a gamma value of a second display screen region and different from the first gamma value; and

switching the first gamma value of the first display region to the second gamma value, so as to turn on the plurality of light-emitting pixels of the first display region.

2. The display screen controlling method according to claim 1 , wherein obtaining the first gamma value according to the turn-on instruction for the under-display device sent by the application processor further comprises:

obtaining a pre-stored corresponding relationship between an instruction for the under-display device and a gamma value; and

obtaining the first gamma value corresponding to the turn-on instruction for the under-display device according to the corresponding relationship.

3. The display screen controlling method according to claim 2 , further comprising:

determining the first gamma value according to a voltage required to turn off the plurality of light-emitting pixels of the first display region; and

determining the second gamma value according to a voltage required to turn on the plurality of light-emitting pixels of the first display region.

4. The display screen controlling method according to claim 1 , further comprising:

determining the first gamma value according to a voltage required to turn off the plurality of light-emitting pixels of the first display region; and

determining the second gamma value according to a voltage required to turn on the plurality of light-emitting pixels of the first display region.

5. A display screen controlling method, comprising:

when an application processor monitors that an under-display device is turned on, the application processor sends a turn-on instruction for the under-display device to a drive apparatus;

obtaining, by the drive apparatus, a first gamma value according to the turn-on instruction for the under-display device;

comparing a gamma value of a first display region to the first gamma value; and

switching, by the drive apparatus, the gamma value of the first display region corresponding to the under-display device to the first gamma value when the gamma value of the first display region is different from the first gamma value, so as to turn off a plurality of light-emitting pixels of the first display region;

when the application processor monitors that the under-display device is turned off, the application processor sends a turn-off instruction for the under-display device to the drive apparatus; and

obtaining, by the drive apparatus, a second gamma value according to the turn-off instruction for the under-display device, wherein the second gamma value is a gamma value of a second display screen region and different from the first gamma value; and

switching, by the drive apparatus, the first gamma value of the first display region to the second gamma value, so as to turn on the plurality of light-emitting pixels of the first display region.

6. The display screen controlling method according to claim 5 , wherein obtaining, by the drive apparatus, the first gamma value according to the turn-on instruction for the under-display device further comprises:

obtaining a pre-stored corresponding relationship between an instruction for the under-display device and a gamma value; and

obtaining the first gamma value corresponding to the turn-on instruction for the under-display device according to the corresponding relationship.

7. The display screen controlling method according to claim 5 , further comprising:

determining the first gamma value according to a voltage required to turn off the plurality of light-emitting pixels of the first display region; and

determining the second gamma value according to a voltage required to turn on the plurality of light-emitting pixels of the first display region.

8. A display screen controlling apparatus, comprising:

a first obtaining module configured to obtain a first gamma value according to a turn-on instruction for an under-display device sent by an application processor and compare a gamma value of a first display region to the first gamma value;

a first switching module configured to switch the gamma value of the first display region corresponding to the under-display device to the first gamma value when the gamma value of the first display region is different from the first gamma value, so as to turn off a plurality of light-emitting pixels of the first display region;

a second obtaining module configured to obtain a second gamma value according to a turn-off instruction for the under-display device sent by the application processor, wherein the second gamma value is a gamma value of a second display screen region and different from the first gamma value; and

a second switching module configured to switch the first gamma value of the first display region to the second gamma value, so as to turn on the plurality of light-emitting pixels of the first display region.

9. The display screen controlling apparatus according to claim 8 , wherein the first obtaining module is further configured to:

obtain a pre-stored corresponding relationship between an instruction for the under-display device and a gamma value; and

obtain the first gamma value corresponding to the turn-on instruction for the under-display device according to the corresponding relationship.