An electronic whiteboard includes a power button, a display device, and circuitry that implements processes of detecting an operation of the power button being turned off, storing at least a part of visible information displayed on the display device from a time the power button was turned on until a time the power button was turned off in a first storage device upon detecting that the power button has been turned off, determining whether to display the visible information stored in the first storage device on the display device based on a first time corresponding to a power-on time recorded when the power button was turned on and a second time corresponding to the power-off time recorded immediately before the first time when the power button was turned off, and controlling the display device to display the stored visible information upon determining to display the stored visible information.

An electronic whiteboard includes a power button, a display device, and circuitry that implements processes of detecting an operation of the power button being turned off, storing at least a part of visible information displayed on the display device from a time the power button was turned on until a time the power button was turned off in a first storage device upon detecting that the power button has been turned off, determining whether to display the visible information stored in the first storage device on the display device based on a first time corresponding to a power-on time recorded when the power button was turned on and a second time corresponding to the power-off time recorded immediately before the first time when the power button was turned off, and controlling the display device to display the stored visible information upon determining to display the stored visible information.

A magnetic pen can be used with a magnetic panel. The magnetic pen includes a body with an end portion. A holder made of a magnetic material is attached to the end portion and an internal space is formed in the holder. A magnet having an S pole and an N pole is arranged in the internal space of the holder so that the S pole and the N pole are opposite the magnetic panel.

A container for storing items may include a container body; a lid designed to engage with the container body; and a rewriteable magnetic display built into the lid or the container body. The rewriteable magnetic display may be removably attached to the lid or container body. Moreover, the container may include a stylus designed to create erasable marks on the rewriteable magnetic display. The container may also include food storage guidelines printed or otherwise displayed thereon.

An apparatus for holding a plurality of documents includes a plurality of dividers. The dividers include a front facing surface, a rear facing surface, an upper end and a lower end. Each divider includes a first attachment member that is attached to a corresponding second attachment member of an adjacent divider so as to form a stacked and interconnected configuration. A frame retains lateral edges of the stacked dividers in which the stacked plurality of dividers define a corresponding plurality of document retaining pockets. In at least one version, the size of the retaining pockets can be selectively and independently adjusted, as needed wherein the apparatus can be used in conjunction with at least one display board, such as a dry-erase board.

An apparatus for holding a plurality of documents includes a plurality of dividers. The dividers include a front facing surface, a rear facing surface, an upper end and a lower end. Each divider includes a first attachment member that is attached to a corresponding second attachment member of an adjacent divider so as to form a stacked and interconnected configuration. A frame retains lateral edges of the stacked dividers in which the stacked plurality of dividers define a corresponding plurality of document retaining pockets. In at least one version, the size of the retaining pockets can be selectively and independently adjusted, as needed wherein the apparatus can be used in conjunction with at least one display board, such as a dry-erase board.

An erasable writable material for large format applications is disclosed, and includes a cast polyvinylchloride film with a mount surface opposite an etched receiver surface. Also incorporated is a transparent polyester film that has a marking side with a hardness exceeding approximately shore D 79 and an opposite seal side, hermetically laminated to the receiver surface. The marking side includes a clear superstrate that has a hardness exceeding approximately shore D 90, which is applied to the marking side of the polyester film to lower surface energy below about 24 millinewtons per meter. The receiver surface is treated to have a surface energy exceeding about 45 millinewtons per meter, to enable improved adherence of printed and preformed graphic elements, which are encapsulated when laminated between the PET film and receiver surface. The superstrate includes a perfluoropolyether, a polyurethane, an acrylated polyurethane, and/or an acrylate resin to harden the material.

An erasable writable material for large format applications is disclosed, and includes a cast polyvinylchloride film with a mount surface opposite an etched receiver surface. Also incorporated is a transparent polyester film that has a marking side with a hardness exceeding approximately shore D 79 and an opposite seal side, hermetically laminated to the receiver surface. The marking side includes a clear superstrate that has a hardness exceeding approximately shore D 90, which is applied to the marking side of the polyester film to lower surface energy below about 24 millinewtons per meter. The receiver surface is treated to have a surface energy exceeding about 45 millinewtons per meter, to enable improved adherence of printed and preformed graphic elements, which are encapsulated when laminated between the PET film and receiver surface. The superstrate includes a perfluoropolyether, a polyurethane, an acrylated polyurethane, and/or an acrylate resin to harden the material.

A display apparatus is provided. The display apparatus includes a display, a sensor to sense a touch on the display, a communicator, a storage configured to store matching information on which the display apparatus and at least one input source each match different touch types and a processor configured to, if it is identified that a touch type of the touch sensed by the sensor corresponds to a specific external input source based on the stored matching information, control the communicator to transmit information corresponding to the sensed touch to the specific external input source.

There is provided a method for producing a reusable writing surface comprising: providing a sheet substrate having first and second surfaces; providing a water-based film disposed upon at least one of the first and second surfaces, wherein the water-based film has a satin finish; and providing a first UV film over the water based film, wherein the first UV film has a gloss finish, thereby resulting in a surface suitable for writing with a dry erasable pen and allowing erasure of the writing.