Electronic device including display and method for operating same
An electronic device according to various embodiments of the disclosure may include: a first housing, a second housing configured to be movable with respect to the first housing, a flexible display coupled to the first housing or the second housing to be movable together with a coupled housing, an illuminance sensor, and a processor, wherein the processor is configured to: measure an illuminance value using the illuminance sensor, determine an area of interest based on a movement of the flexible display, obtain color information on an image displayed in the area of interest, calculate a correction value using the obtained color information, correct the measured illuminance value based on the calculated correction value, and adjust luminance of the flexible display using the corrected illuminance value.
1. An electronic device comprising:
a first housing;
a second housing configured to be movable with respect to the first housing;
a flexible display coupled to the first housing or the second housing;
an illuminance sensor disposed under the flexible display;
at least one processor comprising processing circuitry, and
memory storing instructions that, when executed by the at least one processor, cause the electronic device to:
measure an illuminance value corresponding to a time at which the flexible display is off, using the illuminance sensor,
determine a movement speed of the flexible display,
determine an area of interest of the illuminance sensor based on the determined movement speed of the flexible display,
obtain color information of multiple images displayed in the area of interest,
calculate, based on determining that the movement speed of the flexible display is constant, a correction value using an average value of color information obtained from the multiple images,
assign, based on determining that the movement speed of the flexible display is not constant, a weight value to color information obtained from multiple images and calculate the correction value using the color information to which the weight value is assigned, the weight value being determined based on the movement speed of the flexible display,
correct the measured illuminance value based on the calculated correction value, and
adjust luminance of the flexible display using the corrected illuminance value.
2. The electronic device of claim 1 , further comprising a motor configured to move the flexible display, wherein the instructions, when executed by the at least one processor, cause the electronic device to determine the area of interest based on a speed of the motor.
3. The electronic device of claim 1 , wherein the obtained color information comprises information on a red, green, blue (RGB) ratio of each of frames of a displayed multiple images.
4. The electronic device of claim 1 , wherein the instructions, when executed by the at least one processor, cause the electronic device to:
measure an illuminance value based on a period of a first time interval using the illuminance sensor, and
obtain color information on multiple image frames displayed in the area of interest for the first time interval to calculate the correction value.
5. The electronic device of claim 4 , wherein the instructions, when executed by the at least one processor, cause the electronic device to calculate the correction value further based on a ratio of times for which the multiple image frames displayed in the area of interest are displayed for the first time interval.
6. The electronic device of claim 5 , wherein the instructions, when executed by the at least one processor, cause the electronic device to assign a weight value to times for which the multiple image frames displayed in the area of interest are displayed for the first time interval to calculate the correction value.
7. The electronic device of claim 4 , wherein the instructions, when executed by the at least one processor, cause the electronic device to calculate the correction value using an average value of color information on the multiple image frames displayed in the area of interest, the color information being obtained for the first time interval.
8. The electronic device of claim 1 , wherein the instructions, when executed by the at least one processor, cause the electronic device to synchronize a time for which the illumination value is measured with a time for which the color information on the displayed image is obtained.
9. A method of operating an electronic device, the method comprising:
measuring an illuminance value using an illuminance sensor;
determining a movement speed of a flexible display;
determining an area of interest of the illuminance sensor based on the determined movement speed of the flexible display;
obtaining color information of multiple images displayed in the area of interest;
calculating, based on determining that the movement speed of the flexible display is constant, a correction value using an average value of color information obtained from the multiple images;
assigning, based on determining that the movement speed of the flexible display is not constant, a weight value to color information obtained from multiple images and calculating the correction value using the color information to which the weight value is assigned, the weight value being determined based on the movement speed of the flexible display;
correcting the measured illuminance value based on the calculated correction value; and
adjusting luminance of the flexible display using the corrected illuminance value.
10. The method of claim 9 , wherein the determining of the area of interest includes determining the area of interest based on a speed of a motor configured to move the flexible display.
11. The method of claim 9 , wherein the obtained color information comprises information on a red, green, blue (RGB) ratio of each of frames of the displayed multiple images.
12. The method of claim 9 , wherein the obtaining of the color information on the displayed image further comprises:
measuring an illuminance value based on a period of a first time interval using the illuminance sensor; and
obtaining color information on multiple image frames displayed in the area of interest for the first time interval.
13. The method of claim 12 , wherein the calculating of the correction value includes calculating the correction value further based on a ratio of times for which the multiple image frames displayed in the area of interest are displayed for the first time interval.
14. The method of claim 13 , wherein the calculating of the correction value includes calculating the correction value through assignment of a weight value to times for which the multiple image frames displayed in the area of interest are displayed for the first time interval.
15. The method of claim 12 , wherein the calculating of the correction value includes calculating the correction value using an average value of color information on the multiple image frames displayed in the area of interest, the color information being obtained for the first time interval.
16. The method of claim 9 , further comprising synchronizing a time for which the illumination value is measured with a time for which the color information on the displayed image is obtained.