Projection device and method for controlling the same

A method of providing an edge blending screen using a projector, the method comprising:

• receiving a request to output a graphic user interface (GUI) while an image emitter of the projector outputs a first edge blending screen;
• updating a layout of the first edge blending screen, wherein the updated layout comprises a first display area comprising the GUI and a second display area comprising a first blending image, and wherein the first display area does not overlap the second display area;
• and
• outputting, by the image emitter, a projection image of the first edge blending screen including the updated layout.

A system for providing an edge blending screen, the system comprising:

• a plurality of projectors comprising a primary projector and a secondary projector, wherein the primary projector comprises a first user interface, a first image emitter, a first communicator, and at least one first processor,
• wherein the secondary projector comprises a second user interface, a second image emitter, a second communicator, and at least one second processor,
• wherein the at least one first processor is configured to generate a first edge blending screen and control the first image emitter to output a projection image of the first edge blending screen,
• wherein the at least one second processor is configured to generate a second edge blending screen and control the second image emitter to output a projection image of the second edge blending screen, and
• wherein the at least one first processor is further configured to cause a predetermined area of the first edge blending screen to overlap the second edge blending screen near at least one edge of the first edge blending screen.