A display panel, a driving method thereof and a display device are provided. The display panel includes a plurality of pixel units each of which includes a transparent electrode; a pixel electrode opposite to the transparent electrode; an auxiliary electrode at a side of the transparent electrode facing the pixel electrode, a channel penetrating through the auxiliary electrode; an electrostrictive dielectric layer between the auxiliary electrode and the transparent electrode, an accommodation space being formed in the electrostrictive dielectric layer; and charged particles located between the transparent electrode and the pixel electrode. The through channel is configured to allow the charged particles to pass through the auxiliary electrode through the through channel, and the electrostrictive dielectric layer is configured to selectively confine the charged particles in the accommodation space according to an electric field applied thereto.

A display panel includes at least one first electrode, a plurality of second electrodes opposite to the at least one first electrode, and a plurality of microcapsules disposed between the at least one first electrode and the plurality of microcapsules. Each microcapsule includes a plurality of charged first particles of a first color and a plurality of charged light-emitting particles. Charge polarity of the plurality of first particles is opposite to charge polarity of the plurality of light-emitting particles, and the first color is different from a color of light emitted by the plurality of light-emitting particles.

A display panel includes at least one first electrode, a plurality of second electrodes opposite to the at least one first electrode, and a plurality of microcapsules disposed between the at least one first electrode and the plurality of microcapsules. Each microcapsule includes a plurality of charged first particles of a first color and a plurality of charged light-emitting particles. Charge polarity of the plurality of first particles is opposite to charge polarity of the plurality of light-emitting particles, and the first color is different from a color of light emitted by the plurality of light-emitting particles.

A switchable optical element, a smart window having the same, and a method for switching between optical states of the element such that the optical element includes a pair of substrates disposed facing each other, and at least one cell arranged between the pair of substrates and filled with scattering particles. An electrode configuration is provided on the pair of substrates such that a first group of cell electrodes is interleaved with electrodes of a second group of cell electrodes on a face of a first substrate, and a third group of cell electrodes is interleaved with electrodes of a fourth group of cell electrodes on a face of a second substrate. Switching of the cell includes laterally transporting over at least a distance corresponding to two adjacent cell electrodes of one same cell electrode group and confining the scattering particles to a confinement region within the cell.

A display panel includes a display layer and two electrophoresis layers; the display layer is located between the two electrophoresis layers; the display layer has two display surfaces; each of the two electrophoresis layers comprises a plurality of electrophoresis units, and states of the electrophoresis units include transparent state and non-transparent state. The display panel can implement single-side display, two-side display and completely-transparent display and has a simple structure, thereby leading to a reduced thickness.

An electrophoretic display device includes a substrate, an electrophoretic display film, a plurality of second electrodes, and a plurality of third electrodes. The electrophoretic display film is disposed on the substrate and includes a display medium layer and a first electrode. The second electrodes and the third electrodes are disposed on the substrate and located between the display medium layer and the substrate. A first voltage received by each of the second electrodes is controlled by a corresponding thin-film transistor. The third electrodes and the second electrodes are alternately disposed in a direction. The first voltage is different from a second voltage received by the third electrodes.

A selective transparent display device according to an embodiment can be operated in a transparent mode in which a background is transmitted, a clear mode in which the background is blocked, and a viewing angle control mode in which the background is blocked only at a specific viewing angle or within a specific viewing angle range depending on the usage environment. The selective transparent display device can include a transparent display panel configured to display images and an optical shutter disposed on a surface of the transparent display panel.

The present disclosure provides a projection device for a 3D printer, the projection device including a light source and a display panel for displaying an image to be printed, the image to be printed including a light transmission region and/or a light shielding region. The projection device is configured such that lights emitted from the light source pass through the light transmission region, and that the lights passing through the light transmission region from the light source are non-polarized lights. The present disclosure also provides a 3D printer.

An embodiment of the present application provides a display panel including a first substrate, a second substrate, barrier walls, and an electrophoretic material. The second substrate is disposed opposite to the first substrate, and the second substrate includes a substrate layer, a metal layer, a first protective layer, a nanoparticle layer, and a second protective layer arranged in a stack. The second protective layer is disposed on a side of the second substrate facing the first substrate. The barrier walls are disposed between the first substrate and the second substrate, a plurality of receiving spaces are defined by the barrier walls, the first substrate, and the second substrate, and the electrophoretic material is contained in each of the receiving spaces.

The present disclosure relates to a light shutter panel and a transparent display apparatus having the same. The light shutter panel according to the present disclosure comprises: a lower electrode plate; a upper electrode plate facing with the lower electrode plate; a shutter layer disposed between the lower electrode plate and the upper electrode plate, the shutter layer including a first ink storage portion disposed at a lower part, a second ink storage portion disposed at a upper part and overlapped with the first ink storage portion, and a first electric field guide disposed between the first ink storage portion and the second ink storage portion; a first black ink filled into the first ink storage portion; and a second black ink filled into the second ink storage portion.