Display apparatus and method of displaying content including shadows based on light source position

1. A display apparatus comprising:

a processor;

a memory connected to the processor; and

a display unit,

wherein the processor is configured to:

obtain information corresponding to a position of an external light source and a position of a fixed light source;

control the display unit to display a content and a shadow image based on the information including a light amount of the external light source;

based on the light amount of the external light source being greater than or equal to a predetermined amount, identify a first brightness of the shadow image corresponding to the light amount of the external light source and the position of the external light source, and control the display unit to display a state of the shadow image corresponding to the external light source and corresponding not to the fixed light source according to the identified first brightness; and

based on the light amount of the external light source being less than the predetermined amount, identify a second brightness of the shadow image corresponding to a light amount of the fixed light source and the position of the fixed light source, and control the display unit to display the state of the shadow image corresponding to the fixed light source according to the identified second brightness.

2. The display apparatus of claim 1 , wherein the processor is further configured to display a user interface representing a space in which the display apparatus is located on the display unit, and receive, via the user interface, an input for selecting a position of light sources comprising the fixed light source and the external light source in the space.

3. The display apparatus of claim 2 , wherein the user interface comprises a plane corresponding to the space,

wherein the processor is further configured to receive an input for selecting the position of the light sources on the plane, via the user interface.

4. The display apparatus of claim 2 , wherein the user interface comprises a three-dimensional space corresponding to the space,

wherein the processor is further configured to receive an input for selecting the position of the light sources in the three-dimensional space, via the user interface.

5. The display apparatus of claim 1 , wherein the processor is further configured to receive position information of the display apparatus in the space.

6. The display apparatus of claim 1 , wherein the external light source provides light to an indoor space from an outside of the space,

wherein the processor is further configured to receive the information corresponding to the position of the fixed light source and the position of the external light source.

7. The display apparatus of claim 6 , wherein the processor is further configured to identify the position and the light amount of the external light source based on at least one of a current time and current weather.

8. The display apparatus of claim 7 , wherein the processor is further configured to identify a shape of the shadow image based on an on or off state and the position of the fixed light source when the light amount of the external light source is less than a predetermined amount.

9. The display apparatus of claim 1 , wherein the state of the shadow image corresponds to at least one of a brightness of the shadow image or a shape of the shadow image.

10. A method of displaying content on a display apparatus, the method comprising:

obtaining information corresponding to a position of an external light source and a position of a fixed light source; and

displaying the content and a shadow image based on the information including a light amount of the external light source,

wherein the displaying the shadow image comprises:

based on the light amount of the external light source being greater than or equal to a predetermined amount, identifying a first brightness of the shadow image corresponding to the light amount of the external light source and the position of the external light source, and displaying a state of the shadow image corresponding to the external light source and corresponding not to the fixed light source according to the identified first brightness, and

based on the light amount of the external light source being less than the predetermined amount, identifying a second brightness of the shadow image corresponding to a light amount of the fixed light source and the position of the fixed light source, and displaying the state of the shadow image corresponding to the fixed light source according to the identified second brightness.

11. The method of claim 10 , wherein a user interface representing a space in which the display apparatus is located is displayed on a display of the display apparatus; and

an input for selecting a position of light sources comprising the fixed light source and the external light source in the space is input, via the user interface.

12. The method of claim 11 , wherein the user interface comprises a plane corresponding to the space,

wherein the input for selecting the position of the light sources on the plane, via the user interface.

13. The method of claim 11 , wherein the user interface comprises a three-dimensional space corresponding to the space,

wherein the input for selecting the position of the light sources in the three-dimensional space, via the user interface.

14. The method of claim 10 , further comprising receiving position information indicating a position of the display apparatus ins, the space.

15. The method of claim 10 , further comprising receiving the information corresponding to the position of the fixed light source and the position of the external light source,

wherein the external light source provides light to an indoor space from an outside of the space.

16. The method of claim 15 , further comprising identifying the position and the light amount of the external light source based on at least one of a current time and current weather.

17. The method of claim 16 , further comprising identifying the shadow image based on an on or off state and the position of the fixed light source when the light amount of the external light source is less than a predetermined amount.

18. A non-transitory computer-readable storage medium storing a program for executing the method of claim 10 .