Electronic apparatus and control method thereof

1. An electronic apparatus, comprising:

a projector;

an input/output interface;

a memory; and

a processor configured to control the electronic apparatus by executing at least one instruction stored in the memory to:

obtain screen information of a screen of a screen device,

control the input/output interface to transmit first operation information corresponding to an unrolling of the screen, in response to receiving a user command to project an image, and

while the screen is being unrolled by the screen device based on the transmitted first operation information, control the projector, based on the obtained screen information, to project a first image to at least a partial region of a region in which the screen is exposed.

2. The electronic apparatus as claimed in claim 1 , wherein the processor is configured to

control the input/output interface to transmit second operation information corresponding to rolling of the screen device, in response to receiving a user command not to project the image, and

while the screen is being rolled by the screen device based on the transmitted second operation information, control the projector to project, based on the obtained screen information, a second image to the at least the partial region of the region in which the screen is exposed.

3. The electronic apparatus as claimed in claim 1 , wherein the processor is configured to

obtain motion information of the screen while the screen is being unrolled by the screen device, based on the transmitted first operation information, and

control the projector to correct the first image, based on the obtained motion information, and to project the corrected first image.

4. The electronic apparatus as claimed in claim 3 , wherein the processor is configured to obtain the motion information, based on information on a distance between an upper end of the screen and the electronic apparatus while the screen is being unrolled by the screen device based on the transmitted first operation information.

5. The electronic apparatus as claimed in claim 3 , wherein the processor is configured to

obtain vibration information of the screen by using a vibration sensor while the screen is being unrolled by the screen device based on the transmitted first operation information, and

control the projector to correct the first image, based on the vibration information, and to project the corrected first image to the at least the partial region of the region in which the screen is exposed.

6. The electronic apparatus as claimed in claim 3 , wherein the processor is configured to control the projector to project a third image when the motion information has a value greater than or equal to a predetermined value.

7. The electronic apparatus as claimed in claim 1 , wherein the processor is configured to, after the screen is unrolled by the screen device based on the transmitted first operation information, control the projector to project the first image to the at least the partial region of the region in which the screen is exposed after a first time elapses.

8. The electronic apparatus as claimed in claim 1 , wherein the processor is configured to

control the input/output interface to transmit the first operation information to an external apparatus controlling the electronic apparatus by using a first communication method in response to receiving power-on information of the electronic apparatus from the external apparatus, and

control the projector to project the first image to the at least the partial region of the region in which the screen is exposed while the screen is being unrolled as the external apparatus transmits the first operation information to the screen device by using a second communication method.

9. The electronic apparatus as claimed in claim 1 , wherein the processor is configured to

control the projector to project a content image different from the first image in response to receiving, from the screen device, operation information indicating that the screen device has completed the unrolling of the screen.

10. The electronic apparatus as claimed in claim 1 , wherein the processor is configured to

control the input/output interface to receive, from the screen device, state information indicating that the screen device is unable to unroll the screen, and

allow information indicating that the screen device is unable to unroll the screen to be provided based on the state information.

11. The electronic apparatus as claimed in claim 1 , wherein the obtained screen information includes information on a speed at which the screen is unfolded as the screen is unrolled, and the processor is configured to control the projector to project the first image based on the information on the speed included in the obtained screen information.

12. A method of an electronic apparatus, the method comprising:

obtaining screen information of a screen of a screen device;

transmitting first operation information corresponding to an unrolling of the screen, in response to receiving a user command to project an image; and

while the screen is being unrolled by the screen device based on the transmitted first operation information, projecting, based on the obtained screen information, a first image to at least a partial region of a region in which the screen is exposed.

13. The method as claimed in claim 12 , further comprising:

transmitting second operation information corresponding to rolling of the screen device, in response to receiving a user command not to project the image; and

while the screen is being rolled by the screen device based on the transmitted second operation information, projecting, based on the obtained screen information, a second image to the at least the partial region of the region in which the screen is exposed.

14. The method as claimed in claim 12 , wherein the projecting includes:

obtaining motion information of the screen while the screen is being unrolled by the screen device, based on the transmitted first operation information,

correcting the first image, based on the obtained motion information, and

projecting the corrected first image.

15. The method as claimed in claim 14 , wherein the obtaining of the motion information includes obtaining the motion information, based on information on a distance between an upper end of the screen and the electronic apparatus while the screen is being unrolled by the screen device, based on the transmitted first operation information.

16. The method as claimed in claim 14 , further comprising:

obtaining vibration information of the screen by using a vibration sensor while the screen is being unrolled by the screen device based on the transmitted first operation information;

correcting the first image, based on the vibration information; and

projecting the corrected first image to the at least the partial region of the region in which the screen is exposed.

17. The method as claimed in claim 12 , wherein the obtained screen information includes information on a speed at which the screen is unfolded as the screen is unrolled, and the projecting projects the first image based on the information on the speed included in the obtained screen information.

18. An electronic apparatus, comprising:

a projector; and

a processor configured to control the electronic apparatus to:

obtain screen information indicating a speed at which a screen of a screen device is unfolded as the screen is unrolled by the screen device,

transmit information instructing the screen device to unroll the screen, in response to receiving a user command to project an image, and

while the screen is being unrolled by the screen device based on the transmitted information, control the projector, based on the speed indicated by the obtained screen information, to project an image to at least a partial region of a region in which the screen is exposed.