A magnetic eraser can be used for erasing markings drawn on a magnetic sheet. The magnetic eraser includes a housing with a magnet placed in the housing. The magnetic eraser also includes a first magnetic body placed between a first surface of the housing and the magnet. The first surface of the housing can provide a first erasing surface.

A modular assembly that is configured to be magnetically coupled to another object, such as a white board or glass board, is provided. The magnetic strength of the modular assembly can be adjusted. The modular assembly includes an article, such as a tray or other type of holder for receiving materials like markers and papers, and a module that houses magnets. The article can include a magnet housing portion with a magnet housing retention feature. The module can include a magnet housing with one or more magnets held therein. The magnet housing can include an article coupling feature. The module can slide into the magnet housing portion of the article and be secured in place by the engagement of the magnet housing retention feature and the article coupling feature.

The present disclosure generally relates to display systems, display devices, and methods of making and using them. Some exemplary display systems are capable of attaching a display device to a computer monitor. The exemplary display systems sought to create improved display systems and devices capable of displaying information to a user and attaching to a computer monitor and/or large format electronic display.

An erasable laminate for marking is disclosed. The laminate comprises a substrate with a marking surface, allowing a user to provide markings on the marking surface using the marking material. The marking surface comprises an outer layer containing a sulfonated block copolymer having an ion exchange capacity (IEC) of >0.5 meq/g. At least 50% of the markings can be erased from the marking surface with a wipe moist with a cleaning fluid (e.g., water, isopropyl alcohol, etc.) after wiping for less than 5 min. The laminate with erasable and reusable marking surface can be used for obtaining writing instruments, e.g., notebooks, artist easels, sketches, etc.

A magnetic erasing device including a magnet that includes an S pole and an N pole extending along an axial direction of the magnet, and a rotation mechanism for rotating the magnet in a housing around an axis of the magnet, wherein lines of magnetic force generated around the axis of the magnet during rotation of the magnet are designed to be applied to magnetic particles in the microcapsules to erase a visible image on a magnetic panel when the axis of the magnet is spaced from a surface of the magnetic panel by a predetermined distance.

A system includes a view screen with polarized output. The view screen may include a projected view screen or writing-surface view screen. A window capable of blocking the polarized output at least in part cloaks the view screen to frustrate viewing of the view screen through the window. In some cases, the window includes an array of panels capable of blocking multiple polarizations. The array may disrupt multiple different polarized view screen outputs while maintaining transparency to unpolarized light. In some cases, the window capable of blocking polarized output may be paired with view screen cover that converts view screen output in an unblocked polarization to one of the one or more polarizations blocked by the window.

Disclosed is a writing board attached to a surface for receiving notes or instructions from a user. The writing board includes vinyl foam, a flexible coating, and an adhesive layer. The writing board further includes a second temporary backing film. The vinyl foam includes a top surface and a microscopic cavernous surface. The flexible coating is coated on one of the microscopic cavernous surface to render the vinyl foam air-tight. The temporary backing film covers the microscopic cavernous surface coated with the flexible coating. A user peels off the temporary backing film to firmly attach the vinyl foam to the surface. The erase film is attached to the top surface of the vinyl foam. The erase film allows the user to write and erase content. The adhesive layer attaches the erase film to the top surface of the vinyl foam.

Disclosed is a writing board attached to a surface for receiving notes or instructions from a user. The writing board includes vinyl foam, a flexible coating, and an adhesive layer. The writing board further includes a second temporary backing film. The vinyl foam includes a top surface and a microscopic cavernous surface. The flexible coating is coated on one of the microscopic cavernous surface to render the vinyl foam air-tight. The temporary backing film covers the microscopic cavernous surface coated with the flexible coating. A user peels off the temporary backing film to firmly attach the vinyl foam to the surface. The erase film is attached to the top surface of the vinyl foam. The erase film allows the user to write and erase content. The adhesive layer attaches the erase film to the top surface of the vinyl foam.

A system includes a foldable dry erase board forming a continuous surface area for writing thereon. The dry erase board includes a first panel foldably attached to a second panel about a pivot joint. The method includes creating the continuous dry erase marker board surface with the first panel and the second panel and folding the first panel onto the second panel about the pivot joint extending partially through a thickness of the board.

A system includes a foldable dry erase board forming a continuous surface area for writing thereon. The dry erase board includes a first panel foldably attached to a second panel about a pivot joint. The method includes creating the continuous dry erase marker board surface with the first panel and the second panel and folding the first panel onto the second panel about the pivot joint extending partially through a thickness of the board.