8results about How to "Widen perspective" patented technology

The application discloses a micro-prism and black AR composite optical cover plate for aerial imaging and belongs to the technical field of medium-free aerial imaging optical devices. The cover plate is arranged above a flat lens, a glass substrate is divided into an inner bonding surface facing the flat lens and an outer visible surface, the inner bonding surface is provided with a one-way micro-prism optical structure, the two can be closely assembled or an assembly gap for adapting an optical path can be reserved, and the outer visible surface is provided with a multilayer medium interference light extinction black AR antireflection film layer. The micro-prism optical structure has four light field regulation functions: ensuring high transmission of oblique imaging light, shielding the micro-nano texture on the surface of the flat lens by total internal reflection of external vertically incident ambient light, correcting imaging geometric distortion by angle pre-compensation of the light emitted by the flat lens, and widening the effective viewing angle by outward divergence and beam expansion of the edge field of view. The application can obtain a regular and large field of view aerial real image without software pixel correction, has multiple functions of high light transmission, hidden texture, outer visible pure black appearance effect, distortion correction and large viewing angle, and can be applied to various aerial imaging devices for vehicles, households and businesses.

The application discloses a three-dimensional display device and system. The three-dimensional display device comprises a projection component, a wide-viewing-angle prism array film and a cylindrical lens grating. The projection component is used for projecting an image to be displayed to the wide-viewing-angle prism array film. The wide-viewing-angle prism array film and the cylindrical lens grating are both arc-shaped and have the same center, and the center is located on the optical axis of the projection component. The wide-viewing-angle prism array film is located between the projection component and the cylindrical lens grating. One side of the wide-viewing-angle prism array film is provided with a plurality of sawtooth structures arranged along a first direction, and the sawtooth structures are configured to deflect the light emitted by the projection component in the first direction. The cylindrical lens grating comprises a plurality of cylindrical lenses arranged along a second direction, and the cylindrical lenses expand the light incident thereon in the second direction. The first direction intersects the second direction. The application can expand the viewing angle of the three-dimensional display device in the first direction.

The invention provides a display substrate and a display device, and belongs to the technical field of display. The display substrate comprises a substrate body, a plurality of light emitting units located on the substrate body and arranged in an array, and a driving chip located on the substrate body. The light-emitting unit comprises at least one light-emitting chip, and the driving chip is used for being electrically connected with the light-emitting chip. Each driving chip and the light-emitting chip closest to the driving chip meet the condition that L / D is larger than or equal to tan (alpha / 2). L is the distance between the driving chip and the light-emitting chip closest to the driving chip, D is the distance between the face, away from the substrate, of the driving chip and the face, close to the substrate, of the light-emitting layer of the light-emitting chip closest to the driving chip, and alpha is the light-emitting angle of the light-emitting chip closest to the driving chip. It can be guaranteed that the light-emitting chip has a large light emitting angle, and therefore it is guaranteed that the display substrate has a large visual angle.

The utility model discloses a contact net isolator monitoring device belongs to electrified railway contact net technical field. A contact net isolator monitoring device, including the cabinet body, and the front glass door and the back opposite -open door hinged in the front and back sides of cabinet body, the inside of cabinet body is provided with the upper layer alternating -current equipment, the middle layer direct current equipment and the lower layer wiring equipment who respectively are electrically connected from top to bottom, the inside wall fixedly connected with cabinet body framework in the cabinet body, the top fixed mounting of cabinet body framework has the heat dissipation module, the upper layer alternating -current equipment fixed connection is in the upper portion of cabinet body framework, and the upper layer alternating -current equipment is located heat dissipation module side, the middle layer direct current equipment fixed connection is in the middle portion of cabinet body framework, the utility model discloses: according to the function modularization layered setting of each element, through reasonable element layout and layered design, improve the heat dissipation efficiency, effectively reduced the security risk that leads to the wiring disorder, equipment mutual interference etc.

This invention discloses a driving method and system for a transparent LCD display based on local dimming, relating to the field of local dimming technology for transparent LCD displays. The method includes: dividing the transparent LCD display into multiple driving zones and collecting the ambient light intensity of each driving zone; establishing a transparent display optical perception model; extracting a set of perception indicators; performing driving solution and outputting a combination of driving parameters for each driving zone; and executing a fusion drive of the transparent LCD display according to the multiple driving parameter combinations. This invention solves the technical problem in existing technologies where the driving of a transparent LCD display is difficult to adapt to the differences in ambient light and dynamic changes in image perception, resulting in poor coordination of display brightness, transparency, and local contrast, and insufficient driving accuracy. It achieves precise driving of each driving zone of the transparent LCD display to adapt to the needs of ambient light and image perception, improving the synergistic optimization effect of display brightness, transparency, and local contrast.

The utility model relates to the technical field of heat preservation doors, in particular to a novel heat preservation door which comprises a door body, a window structure used for observation is arranged on the upper portion of the door body, the window structure comprises an installation frame arranged on the upper portion of the door body, and a transparent device is arranged in the installation frame. A sealing strip is arranged at the joint between the transparent device and the mounting frame, a clamping groove is formed in the side edge of the mounting frame, a pressing strip is clamped in the clamping groove, the pressing strip and the clamping groove are connected in an interference fit mode, and a pressing edge is arranged on the inner side of the pressing strip and abuts against the side edge of the transparent device. The stability and the sealing performance of the window structure are ensured, and the service life of the refrigerated cabinet is prolonged.

The application provides a display panel and a display device. The display panel comprises: a color resistance layer, the color resistance layer comprising a plurality of color resistance unit groups arranged in sequence at intervals, each color resistance unit group comprising a plurality of color resistance units arranged in an array, the color resistance units being configured to transmit light; and a light transmission layer, the light transmission layer being arranged adjacent to a light exit side of the color resistance layer, the light transmission layer comprising a substrate and a plurality of diffusion groups arranged at intervals, the substrate being arranged opposite the color resistance layer, the plurality of diffusion groups being arranged on a side of the substrate away from the color resistance layer, each diffusion group comprising a plurality of diffusion portions, the diffusion portions being protruding or recessed from the substrate, and the diffusion portions being arranged at least partially opposite the color resistance units; when the display panel is in operation, light is incident on the light transmission layer via the color resistance layer, and then exits the display panel via the light transmission layer to a display surface of the display panel, the light has a first exit range via the color resistance layer, and the light has a second exit range via the light transmission layer, the second exit range being larger than the first exit range, thereby improving the display effect of the display panel at a side view angle.

The embodiment of the invention provides a display panel and a display device. The display panel comprises a substrate, a light-emitting chip, a driving chip and a circuit layer, wherein the light-emitting chip and the driving chip are arranged on the substrate in an array mode, and the circuit layer conducts the light-emitting chip and the driving chip. The substrate comprises a first substrate and a second substrate, the circuit layer is arranged between the first substrate and the second substrate, and the driving chip is arranged on the first surface of the first substrate; the light-emitting chip is arranged on the second surface, away from the first substrate, of the second substrate. According to the display panel and the display device provided by the embodiment of the invention, the light-emitting chip and the driving chip are respectively arranged on the opposite surfaces of different substrates, so that the condition that the driving chip blocks the light of the light-emitting chip is thoroughly avoided; therefore, the visual angle of the display module is effectively improved, and brightness attenuation and color drift which are prone to occurring during large-visual-angle observation are avoided.