A method of controlling a display device includes the steps of displaying a first image in a first size on a display surface, displaying the first image and a second image which has the first size and is different from the first image on the display surface when an operation of changing a size of the first image is started, displaying the first image in the first size on the display surface when the operation continues, displaying the second image in a size different from the first size on the display surface based on the operation when the operation continues, and displaying the first image in a second size based on the operation on the display surface when the operation terminates.

An interactive projection system and a projection method thereof are provided. The interactive projection system includes a projection region, a projection device, a touch device and a host. The touch device is movably disposed on the projection region. The projection device projects a corresponding input interface on a touch sensing surface of the touch device according to a position of the touch device, so as to improve usage convenience of the projection system.

The embodiment of the present disclosure provides an electronic device including a main body, a flexible screen, and a processor, the main body being a reel structure; the flexible screen being selectively in a first state wound inside the main body and a second state being released from the main body, the processor being configured to control the flexible screen to be changed between the first state and the second state in response to operation instructions applied on the main body or the flexible screen.

A display method includes accepting a first handwritten input to a display surface, determining a first area including a position on the display surface where the first handwritten input is made, displaying a first image corresponding to the first handwritten input in the first area, displaying a second image formed by enlarging the first image with a predetermined enlargement ratio, in a second area on the display surface, accepting a second handwritten input in the second area, and displaying an image corresponding to the second handwritten input as a part of the first image, at a position in the first area corresponding to a position in the second area where the second handwritten input is made, and in a size reduced with a reduction ratio that is a reciprocal of the predetermined enlargement ratio.

A display method includes accepting a first handwritten input to a display surface, determining a first area including a position on the display surface where the first handwritten input is made, displaying a first image corresponding to the first handwritten input in the first area, displaying a second image formed by enlarging the first image with a predetermined enlargement ratio, in a second area on the display surface, accepting a second handwritten input in the second area, and displaying an image corresponding to the second handwritten input as a part of the first image, at a position in the first area corresponding to a position in the second area where the second handwritten input is made, and in a size reduced with a reduction ratio that is a reciprocal of the predetermined enlargement ratio.

A disclosed example method to display information from a computer system includes: accessing peripheral display information in a designated peripheral display area of a frame buffer memory in response to detecting a presence of the peripheral display information, the designated peripheral display area being a subarea of the frame buffer memory, the sub-area covering less than an entirety of a main screen of a monitor; displaying, via a peripheral information display device, the peripheral display information from the designated peripheral display area of the frame buffer memory, the peripheral information display device being separate from the main screen; determining user input coordinates based on a user interaction with the peripheral display information; updating the peripheral display information from a computer to the frame buffer memory; and displaying the updated peripheral display information from the designated peripheral display area of the frame buffer memory via the peripheral information display device.

A mobile device and a method of controlling a docking device by the mobile device are provided. The method of controlling the docking device by the mobile device according to the present disclosure includes: connecting to the docking device, the docking device including a projector and a keyboard device; setting, as the mobile device connects to the docking device, the projector as an output unit for the mobile device and the keyboard device as an input unit for the mobile device; receiving, from the docking device, an input signal provided via the keyboard device included in the docking device; and transmitting, to the docking device, output image data generated based on the received input signal, wherein the output image data provided to the docking device is projected outside the docking device via the projector.

A projector includes a communication section that accepts image information supplied from an image supplying apparatus, an image projection section that displays an image based on the image information on a display surface, a detector that detects a pointing position on the display surface at which a light emitting pen is pointing, a drawn image generator that generates a drawn image based on the pointing position detected by the detector, a display controller that causes the image projection section to display the drawn image, and a storage that stores the drawn image in association with the IP address. In a case where the image supplying apparatus, which supplies the communication section with the image information, is changed, the display controller reads the drawn image corresponding to the IP address of the changed image supplying apparatus from the storage and causes the image projection section to display the read drawn image.

An electronic pen includes: a communication unit which communicates with a communication target apparatus; a state detection unit which detects a state of the electronic pen decided by a relation with the communication target apparatus; and a control unit which changes an operation of the communication unit according to the state detected by the state detection unit.

A method for creating a boundless projected interactive virtual desktop, wherein the interactive virtual desktop comprises an adjustable image of a projected portion of an area associated with at least one desktop of a computing device is provided. The method may include integrating a projector and a motion sensor into a device. The method may also include capturing at least one of a location, a change in location, a change in direction, or a change in orientation associated with the device. The method may include computing a projected image. The method may also include coordinating the computed projected image across at least one application running in the device. The method may further include projecting a view of a portion of an area associated with the coordinated projected image, wherein the projected view comprises an interactive virtual desktop. The method may additionally include adjusting the projected view based on a criteria.