39results about How to "Limited viewing angle" patented technology

An optical device includes a first polarizer which has an absorption axis in a thickness direction; a second polarizer which has an absorption axis in a thickness direction; and a functional layer which is disposed between the first polarizer and the second polarizer and is capable of switching between a state in which an in-plane retardation is 0 and a state in which an in-plane retardation is greater than 0. A display device includes a display element; and the optical device.

An electronic device and a method for controlling photographic capture. A first image is acquired by a first camera having a first viewing angle. A second image is acquired by a second camera having a second viewing angle, the second viewing angle being different from the first viewing angle. The first image is overlaid with at least one object from the second image, or an icon corresponding to the object. The first camera and the second camera are mounted to a same surface, or to disparate surfaces relative to one another. Photographic capture or control is triggered in response to movement of the object.

A liquid crystal device includes a pair of polarizing plates having a transmission axis; a display panel being disposed between the pair of polarizing plates and having a function of displaying an image; and a viewing angle control panel having a liquid crystal layer that is disposed at a position adjacent to one of the pair of polarizing plates between the pair of polarizing plates with liquid crystal molecules aligned in a predetermined direction and controlling a viewing angle of a display on the display panel, wherein the alignment direction of the liquid crystal molecules of the viewing angle control panel is substantially parallel or perpendicular to a transmission axis of the one polarizing plate.

A display unit which the view angle is limited and the front luminance is improved is provided. The display unit includes a display device, and a light guiding part which is provided to face the display device, has an incident face on the side opposing to the display device, an emitting face on the opposite side of the display device, and a reflective face on the side face, and has a cross section expanding from the incident face to the emitting face.

A uniaxially stretched multi-layer laminate film includes 251 or more layers in which a first layer and a second layer are alternately laminated, wherein the first layer is composed of a polyester containing a 2,6-naphthalene dicarboxylic acid component; the second layer is composed of a thermoplastic resin having an average refractive index of 1.60 or more and not more than 1.65 and having negative optical anisotropy or isotropy; an S polarization component has an average reflectance of 90% or more relative to the incident polarized light at an angle of incidence of 0 degree and 50 degrees, respectively; and a P polarization component has an average reflectance of not more than 15% relative to the incident polarized light at an angle of incidence of 0 degree and an average reflectance of 20% or more relative to the incident polarized light at an angle of incidence of 50 degrees.

The present invention provides a liquid crystal display panel and a liquid crystal display apparatus. The liquid crystal display panel comprises a first polarizer, a second polarizer and a liquid crystal cell provided between the first polarizer and the second polarizer, wherein the liquid crystal display panel further comprises a view angle control layer provided between the first polarizer and the second polarizer, the refractivity of the view angle control layer in a horizontal direction can vary with an electric field in the horizontal direction applied to the view angle control layer.

A display device and privacy protecting method thereof are provided. The privacy protecting method includes: analyzing a display image on a display panel to determine at least one privacy information region in the display image; configuring at least one privacy protecting region on a privacy protecting mask according to a first area or a first position of the at least one privacy information region, so that a viewing angle of the privacy information region is limited by the privacy protecting region, and a viewing angle of other region in the display image is not limited; detecting whether the first area or the first position is changed; and correspondingly changing a second area or a second position of the at least one first privacy protecting region when the first area or the first position of the at least one privacy information region is changed.

A polarized type viewing angle control element including a biaxial compensation film and a plurality of polarizers is provided. The polarizers are disposed on opposite sides of the biaxial compensation film. A polarized type viewing angle control display module and a polarized type viewing angle control light source module are also provided.

An optical device includes a first composite film; a second composite film or a polarizing film; a λ/2 plate; and a light-emitting unit, in which the first composite film and the second composite film contains a liquid crystal compound aligned in a thickness direction and a photochromic material, optical characteristics of the photochromic material are changed by irradiation with light, a light transmittance in the thickness direction becomes smaller than a light transmittance in a direction orthogonal to the thickness direction, the polarizing film has an absorption axis in the thickness direction, and the light-emitting unit emits light that changes the optical characteristics of the photochromic material.

An optical device includes a polarizing plate; a composite film which contains a liquid crystal compound aligned in a thickness direction and a photochromic material and in which optical characteristics of the photochromic material are changed by emitting light and a light transmittance in the thickness direction becomes smaller than a light transmittance in a direction orthogonal to the thickness; and a light-emitting unit which emits light changing the optical characteristics of the photochromic material of the composite film.

The present invention provides a 2D-3D switching device of a naked eye 3D display, comprising a first substrate (1), a second substrate (2) oppositely located to the first substrate (1), a plurality of electrodes (3) located between the first substrate (1) and the second substrate (2) and on the second substrate (2), a dielectric layer (4) formed on the second substrate (1) and completely covering surfaces of the plurality of electrodes (3) and a first fluid (51) which is hydrophobic and a second fluid (52) which is hydrophilic which fill between the first substrate (1) and the second substrate (2); the first substrate (1) comprises a prism (11), and a side of the first substrate (1) having the prism (11) is opposite to the second substrate (2), and the prism (11) of the first substrate (1) comprises a plurality of curved surface zones (111) which are evenly distributed and a plurality of perimeter zones (112) located surrounding the curved surface zones (111), and each of the electrodes (3) is positioned corresponding to one curved surface zone (111). The device can commodiously achieve the switch between 2D display state and 3D display state of the naked eye 3D display.

The present invention provides an assembly for controllable viewing angle for a vehicle. The system further provides configurable independent sunlight blocking or completely unobstructed options for the occupants in the vehicle having a panoramic view windscreen.

An optical filter and a plasma display device including the same are provided. The optical filter includes a support layer, and a plurality of stripe-shaped structures arranged at predetermined intervals on one surface of the support layer and formed using a material having a different refractive index than a refractive index of the support layer. In the optical filter, incident light is reflected at an interface between the support layer and the structure due to a difference of the respective refractive indices. Since the direction of entry of external light is the same as the reflected exit direction of the external light, visibility degradation caused by interference from the external light is minimized or reduced. Since the structure is formed using a material having a high transmittance, luminance loss of light generated by the display is also minimized.

The embodiment of the invention provides a camera control method and device, a storage medium and a smart watch, and the method comprises the steps: obtaining an included angle between a dial and a watch support when the contact of the dial and the watch support in the smart watch is detected to be changed into separation; obtaining an included angle between a camera and a dial plate in the smartwatch; and if the included angle between the camera and the dial plate is not equal to the included angle between the dial plate and the watch support, controlling a first rotating shaft in the smartwatch to adjust the included angle between the camera and the dial plate according to the included angle between the dial plate and the watch support until the included angle between the camera and the dial plate is equal to the included angle between the dial plate and the watch support. According to the method of the invention, when the dial plate of the smart watch is separated from the watch support, the included angle between the camera and the dial plate can be automatically adjusted according to the change of the included angle between the dial plate and the watch support, so that the camera always shoots in the optimal view, the view angle of the camera is prevented from being limited, and the experience is more intelligent and meticulous.