A display device, including a display module and a peep-proof light source module, is provided. The display module is used to provide a display beam. The peep-proof light source module is disposed on a transmission path of the display beam and includes at least one light emitting element, a light guide plate, and optical microstructures. The light emitting element is used to provide a privacy light. The light guide plate has at least one light incident surface. Each optical microstructure has an optical surface facing the light incident surface. At least part of the privacy light is reflected by the optical surface and then exits the light guide plate. The distribution density of the optical microstructures on the light guide plate close to the light incident surface is substantially the same as the distribution density away from the light incident surface and close to the center.

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 touch panel and a touch display device are provided. The touch panel includes a display module and a package cover plate. The display module includes a display screen and a first polarizer placed on a side of the display screen. A first frame glue is placed between the package cover plate and the display module, and the first frame glue, the package cover plate and the display module form a cavity. A first liquid crystal is filled in the cavity. The first liquid crystal includes a plurality of first liquid crystal molecules, and orthogonal projections of light axes of some of the first liquid crystal molecules intersect a polarization direction of the first polarizer.

A display device, including a display module and a peep-proof light source module, is provided. The display module is used to provide a display beam. The peep-proof light source module is disposed on a transmission path of the display beam and includes at least one light emitting element, a light guide plate, and optical microstructures. The light emitting element is used to provide a privacy light. The light guide plate has at least one light incident surface. Each optical microstructure has an optical surface facing the light incident surface. At least part of the privacy light is reflected by the optical surface and then exits the light guide plate. The distribution density of the optical microstructures on the light guide plate close to the light incident surface is substantially the same as the distribution density away from the light incident surface and close to the center.

A viewing angle expansion film, a method for preparing the same, and a display device are provided. The viewing angle expansion film includes a first film layer having a flat layer, a plurality of first projections, and a plurality of second projections, and a second film layer disposed on the first film layer. The plurality of first projections and the plurality of second projections are arrayed on the flat layer. The second film layer is filled in gaps between the first projections and the second projections adjacent to the first projections, gaps between adjacent first projections, and gap between adjacent second projections. A refractive index of the second film layer is greater than a refractive index of the first film layer.

An electronic device and a vehicle using the same are provided. The electronic device includes a display panel. The display panel is switched between a share mode and a privacy mode. In the privacy mode, a first light emission brightness measured at a first viewing angle is lower than a second light emission brightness measured at a normal line of the display panel, and a third light emission brightness measured at a second viewing angle is higher than the second light emission brightness.

A viewing angle controlling light source device and a display apparatus are provided. The viewing angle controlling light source device includes a base substrate; a light emitting array arranged on the base substrate, wherein the light emitting array includes a plurality of light emitting units; at least one liquid crystal lens array arranged on the light emitting array, wherein the liquid crystal lens array includes a plurality of liquid crystal lens units corresponding to the light emitting units one by one, each liquid crystal lens unit includes a first electrode and a second electrode, and a liquid crystal layer arranged between the first electrode and the second electrode a light emergent direction of light emitted by the light emitting unit after the light transmitting through the liquid crystal lens unit by regulating a voltage difference between the first electrode and the second electrode.

A display device and a controlling method are disclosed to achieve peep-proof effect while increasing utilization rate of light. The display device includes a display panel including a first substrate, a second substrate and a plurality of display units, wherein a first light source is disposed on one side of the first substrate; light emitted by the first light source is incident onto the first substrate and propagated in the first substrate in a manner of total reflection; and a light adjusting structure is disposed on a surface of the first substrate close to the second substrate, and is configured to reduce a divergence angle of light emitted by each of the display units of the display panel.

An electronic device including a panel and a light control unit is provided. The panel includes a first light-emitting region and a transparent region disposed adjacent to the first light-emitting region. The light control unit is disposed on the panel, wherein the light control unit is overlapped with the first light-emitting region.

A viewing angle control film and a display device comprising the same are discussed. The viewing angle control film can include a first electrode, a second electrode facing away from the first electrode, a light conversion layer disposed between the first electrode and the second electrode, and a controller configured to adjust a viewing angle of the light conversion layer by controlling a voltage applied between the first electrode and the second electrode. The light conversion layer can include a plurality of partition walls disposed to be spaced apart between the first electrode and the second electrode, a plurality of containing portions disposed between the partition walls and arranged at regular intervals along the first electrode, and light blocking particles provided in each of the plurality of containing portions. The controller applies a pulse voltage in a share mode that operates in a wide viewing angle.