Embodiments of the present invention are directed to systems and methods for writing on electronic paper (“e-paper”) and display platforms implemented with e-paper. In one aspect, a system for writing information to electronic paper includes a writing module and an erasing unit connected to the writing module. The erasing unit is configured to erase information stored in the electronic paper. The system also includes a writing unit connected to the writing module and is configured to write information to the electronic paper. Information is written to the electronic paper by orienting the writing module so that the electronic paper passes the erasing unit prior to passing the writing unit.

Embodiments of the present invention are directed to systems and methods for writing on electronic paper (“e-paper”) and display platforms implemented with e-paper. In one aspect, a system for writing information to electronic paper includes a writing module and an erasing unit connected to the writing module. The erasing unit is configured to erase information stored in the electronic paper. The system also includes a writing unit connected to the writing module and is configured to write information to the electronic paper. Information is written to the electronic paper by orienting the writing module so that the electronic paper passes the erasing unit prior to passing the writing unit.

A magneto-electrophoretic medium that can be globally and locally addressed and erased. The medium provides a writeable display with no perceivable lag and the ability to write and erase with only minimal power requirements. In particular, the magneto-electrophoretic medium can be erased by providing a subthreshold electric stimulus and supplementing a second non-electric stimulus that disturbs the written state and allows the magneto-electrophoretic particles to return to their original state.

A magneto-electrophoretic medium that can be globally and locally addressed and erased. The medium provides a writeable display with no perceivable lag and the ability to write and erase with only minimal power requirements. In particular, the magneto-electrophoretic medium can be erased by providing a subthreshold electric stimulus and supplementing a second non-electric stimulus that disturbs the written state and allows the magneto-electrophoretic particles to return to their original state.

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 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.

Disclosed are a refractive index adjustment structure, a color filter substrate, a display panel and a display apparatus. The refractive index adjustment structure includes an adjustment layer and at least one electrode layer. The adjustment layer and the at least one electrode layer are provided in a stacked manner. The at least one electrode layer is configured to be loaded with an electric signal, and the electric signal is capable of adjusting a refractive index of the adjustment layer.

The grating substrate includes a first base substrate and a plurality of grating units on the first base substrate. The grating unit includes two control layers, a barrier structure between the two control layers, and a plurality of movable particles in a closed cavity surrounded by the barrier structure and the two control layers. The two control layers include a first control layer and a second control layer. The first control layer is located on a side of the second control layer distal from the first base substrate, and the two control layers are configured to control movement of the plurality of particles. The particles satisfy at least one of the following conditions: the particles have a refractive index smaller than a refractive index of the first control layer, or the particles are non-transparent particles.

A magneto-electrophoretic medium that can be globally and locally addressed and erased. The medium provides a writeable display with no perceivable lag and the ability to write and erase with only minimal power requirements. In particular, the magneto-electrophoretic medium can be erased by providing a subthreshold electric stimulus and supplementing a second non-electric stimulus that disturbs the written state and allows the magneto-electrophoretic particles to return to their original state.

A magneto-electrophoretic medium that can be globally and locally addressed and erased. The medium provides a writeable display with no perceivable lag and the ability to write and erase with only minimal power requirements. In particular, the magneto-electrophoretic medium can be erased by providing a subthreshold electric stimulus and supplementing a second non-electric stimulus that disturbs the written state and allows the magneto-electrophoretic particles to return to their original state.