The present invention provides four-particle electrophoretic displays with improved driving methods to achieve better color separation between adjacent pixel electrodes. The driving methods improve the color state performance when a first pixel is displaying a mixed state of a first highly-charged particle and a second lower-charged particle of the opposite polarity, while a neighboring pixel is displaying a state of a second highly-charged particle having the opposite polarity to the first highly-charged particle. The particles can be, for example, all reflective or one type of particle can be partially light transmissive.

An optical path control member according to an embodiment comprises: a first substrate; a first electrode disposed on the first substrate; a light conversion part disposed on the first electrode; a second substrate disposed on the first substrate; a second electrode disposed under the second substrate; and an adhesive layer disposed between the light conversion part and the second electrode, wherein the light conversion part comprises alternately disposed partition wall portions and accommodation portions, light transmittance of the accommodation portions changes according to voltage application, the upper surfaces of the partition wall portions are in contact with the adhesive layer, the light conversion part is formed of a photocurable resin, the photocurable resin comprises an oligomer, a monomer, a photopolymerization initiator, and an additive, and the additive comprises an antistatic agent in an amount of 1.5 wt % to 3.0 wt %.

An optical path control member according to an embodiment comprises: a first substrate; a first electrode disposed on the first substrate; a light conversion part disposed on the first electrode; a second substrate disposed on the first substrate; a second electrode disposed under the second substrate; and an adhesive layer disposed between the light conversion part and the second electrode, wherein the light conversion part comprises alternately disposed partition wall portions and accommodation portions, light transmittance of the accommodation portions changes according to voltage application, the upper surfaces of the partition wall portions are in contact with the adhesive layer, the light conversion part is formed of a photocurable resin, the photocurable resin comprises an oligomer, a monomer, a photopolymerization initiator, and an additive, and the additive comprises an antistatic agent in an amount of 1.5 wt % to 3.0 wt %.

A display panel including a substrate, a thermal sensor, a plurality of sensing traces, a pixel layer, and a display medium layer is provided. The substrate has a display area. The thermal sensor is attached on the substrate. The sensing traces are disposed on the substrate and connected to the thermal sensor. The pixel layer disposed on the substrate includes a pixel structure and a plurality of signal lines. The pixel structure is disposed in the display area and connected to the signal lines. The signal lines of the pixel layer are independent from the sensing traces. The display medium layer is disposed on the substrate and the pixel layer is located between the display medium layer and the substrate. A display apparatus and a method of fabricating the display panel are also provided.

A display panel including a substrate, a thermal sensor, a plurality of sensing traces, a pixel layer, and a display medium layer is provided. The substrate has a display area. The thermal sensor is attached on the substrate. The sensing traces are disposed on the substrate and connected to the thermal sensor. The pixel layer disposed on the substrate includes a pixel structure and a plurality of signal lines. The pixel structure is disposed in the display area and connected to the signal lines. The signal lines of the pixel layer are independent from the sensing traces. The display medium layer is disposed on the substrate and the pixel layer is located between the display medium layer and the substrate. A display apparatus and a method of fabricating the display panel are also provided.

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.

Enhanced push pull driving waveforms for driving a four particle electrophoretic medium including four different types of particles, for example a set of scattering particles and three sets of subtractive particles. Methods for identifying a preferred waveform for a target color state when using a voltage driver having at least five different voltage levels.

Enhanced push pull driving waveforms for driving a four particle electrophoretic medium including four different types of particles, for example a set of scattering particles and three sets of subtractive particles. Methods for identifying a preferred waveform for a target color state when using a voltage driver having at least five different voltage levels.

A viewing angle adjustment device and a display device including the same are discussed. The viewing angle adjustment device can include a first protective layer, a second protective layer disposed on the first protective layer, a light conversion layer disposed between the first protective layer and the second protective layer and including dispersion liquid having dispersed floating particles, and an auxiliary light conversion layer disposed on the second protective layer. The auxiliary light conversion layer can include first patterns where a light absorbing layer and a transparent layer are disposed in a center area, and second patterns where the light absorption layer, the transparent layer and a reflective layer are disposed in an edge area.