Brightness adjustment method and HMD device

1. An electronic device comprising:

a controller device; and

a head-mounted display (HMD) device wirelessly connected to the controller device,

wherein the controller device comprises:

a first communication circuit,

a light emitting element, and

a first processor configured to control brightness of the light emitting element based on a brightness adjustment signal received from the HMD device,

wherein the HMD device comprises:

a second communication circuit,

a memory,

a sensor configured to measure external illuminance, and

a second processor configured to:

obtain external illuminance measured by the sensor, and

transmit a brightness adjustment signal for adjusting brightness of the light emitting element of the controller device to the controller device using the second communication circuit based on the obtained external illuminance,

wherein an initial brightness value of the light emitting element that distinguishes the controller device from other objects according to an arbitrary external illuminance is stored in the memory, and

wherein the obtaining of the external illuminance prior to the transmission of the brightness adjustment signal for adjusting brightness of the light emitting element is based on the initial brightness value of the light emitting element.

2. The electronic device of claim 1 ,

wherein the HMD device further comprises a camera, and

wherein the second processor is further configured to:

measure a distance to the controller device using the camera, and

transmit the brightness adjustment signal further based on the measured distance.

3. The electronic device of claim 1 ,

wherein the first processor is further configured to adjust brightness of the light emitting element to a maximum value when configuring a connecting position of the controller device, and

wherein the second processor is further configured to detect brightness of the light emitting element adjusted to the maximum value to identify a position of the controller device.

4. The electronic device of claim 3 , wherein the second processor is further configured to:

measure external illuminance using the sensor further based on the identified position of the controller device, and

transmit a brightness adjustment signal by acquiring the measured external illuminance.

5. The electronic device of claim 3 , wherein the second processor is further configured to:

identify an attribute of a content being executed, and

transmit the brightness adjustment signal in the case of a predetermined first attribute.

6. The electronic device of claim 3 , wherein the second processor is further configured to:

identify an attribute of a content being executed, and

maintain brightness of the light emitting element of the controller device at the maximum value in the case of a predetermined second attribute.

7. The electronic device of claim 1 ,

wherein the controller device comprises a plurality of light emitting elements, and

wherein the first processor is further configured to adjust brightness of at least a part of the plurality of light emitting elements based on the brightness adjustment signal.

8. The electronic device of claim 7 , wherein the first processor is further configured to turn off at least a part of the plurality of light emitting elements based on the brightness adjustment signal.

9. The electronic device of claim 2 ,

wherein the controller device comprises a plurality of light emitting elements, and

wherein the second processor is further configured to:

recognize at least a part of the plurality of light emitting elements using the camera, and

transmit a brightness adjustment signal that enables to maintain brightness of at least one light emitting element recognized using the camera and to adjust brightness of at least one unrecognized light emitting element.

10. The electronic device of claim 3 ,

wherein the first processor is further configured to flicker the light emitting element when configuring a connecting position of the controller device, and

wherein the second processor is further configured to detect the flickered light emitting element to identify a position of the controller device.

11. A method of adjusting brightness of a light emitting element disposed in a controller device of an electronic device,

wherein the electronic device comprises a head-mounted display (HMD) device and the controller device wirelessly connected to the HMD device, and

wherein the method comprises:

storing, by the HMD device, an initial brightness value of the light emitting element that distinguishes the controller device from other objects according to an arbitrary external illuminance in a memory,

acquiring, by the HMD device, external illuminance,

transmitting, by the HMD device, a brightness adjustment signal for adjusting brightness of the light emitting element based on the acquired external illuminance, and

controlling, by the controller device, brightness of the light emitting element by receiving the transmitted brightness adjustment signal, and

wherein the acquiring of the external illuminance prior to the transmission of the brightness adjustment signal for adjusting brightness of the light emitting element is based on an initial brightness value of the light emitting element.

12. The method of claim 11 , wherein the transmitting of the brightness adjustment signal comprises:

measuring, by the HMD device, a distance to the controller device using a camera; and

transmitting, by the HMD device, a brightness adjustment signal using a communication circuit further based on the measured distance.

13. The method of claim 11 , further comprising configuring, by the HMD device, a connecting position of the controller device,

wherein the configuring of the connecting position comprises:

adjusting, by the controller device, brightness of the light emitting element to a maximum value, and

identifying, by the HMD device, a position of the controller device by detecting brightness of the light emitting element adjusted to the maximum value.

14. The method of claim 13 , wherein the transmitting of the brightness adjustment signal comprises:

measuring, by the HMD device, external illuminance using a sensor further based on the identified position of the controller device; and

transmitting, by the HMD device, the brightness adjustment signal by acquiring the measured external illuminance.

15. The method of claim 13 , wherein the transmitting of the brightness adjustment signal comprises:

identifying, by the HMD device, an attribute of an content being executed; and

transmitting, by the HMD device, the brightness adjustment signal in the case that the identified attribute of the content is a predetermined first attribute.

16. The electronic device of claim 2 ,

wherein the camera is a separate sensor from the illuminance sensor,

wherein, when determining distance and brightness, the camera only measures distance and the illuminance sensory only measures illuminance.

17. A computer readable storage medium with instructions stored thereon, the instructions executed by a controller device perform a method of adjusting brightness of a light emitting element disposed in controller device of an electronic device,

wherein the electronic device comprises a head-mounted display (HMD) device and the controller device wirelessly connected to the HMD device, and

wherein the method comprises:

storing, by the HMD device, an initial brightness value of the light emitting element that distinguishes the controller device from other objects according to an arbitrary external illuminance in memory,

acquiring, by the HMD device, external illuminance,

transmitting, by the HMD device, a brightness adjustment signal for adjusting brightness of the light emitting element based on the acquired external illuminance, and

controlling, by the controller device, brightness of the light emitting element by receiving the transmitted brightness adjustment signal, and

wherein the acquiring of the external illuminance prior to the transmission of the brightness adjustment signal for adjusting brightness of the light emitting element is based on an initial brightness value of the light emitting element.