59results about How to "Expand viewing range" patented technology

A method of changing a display mode in a car navigation system, the method including: acquiring distance information from a current vehicle location to a guide point; and gradually changing the display mode into any one of a two-dimensional display mode and a three-dimensional display mode based on the distance information.

The invention discloses a tracking type autostereoscopic display control method, a tracking type autostereoscopic display control device, a tracking type autostereoscopic display control system and display equipment. The tracking type autostereoscopic display control method comprises a process for adjusting a display parameter, wherein the process comprises the following steps of: determining the current watching distance of a watcher; and performing joint adjustment on a synthesis parameter of a stereo image and a light split parameter of a controllable light splitter to adjust a watching adaptation distance of the stereo display equipment to the current watching distance. The invention also provides the corresponding tracking type autostereoscopic display control device, the corresponding tracking type autostereoscopic display control system and the display equipment. The watching adaptation distance of the stereo display equipment can be adjusted in a relatively large range by adjusting the controllable light splitter according to a dynamic stereo image synthesis technology, so that the autostereoscopic display equipment has a relatively large watching range.

In an autostereoscopic display, a horizontal view range can be widened without reducing two-dimensional resolutions. Lenses are arranged to be a linear combination having integer coefficients of two unit vectors, thereby to control the vertical and horizontal view ranges.

A right front housing cover is arranged in the right side of a working mechanism, and a first control valve is arranged in a front portion side of a valve accommodation room that is covered with the right front housing cover. Further, a signal control valve block is arranged in the back side of the first control valve and in the upper side of the first control valve, and a solenoid valve is arranged in the back side of the signal control valve block. A front surface plate forming part of the right front housing cover has a lower side is inclined in an oblique downward direction toward the forward side, and is arranged along a virtual line that extends in an oblique downward direction through a front end portion of the first control valve and a front end portion of the signal control valve block.

The invention relates to the technical field of naked eye three-dimensional display, in particular to a naked eye three-dimensional display method and device based on a vibration grating. The naked eye three-dimensional display method and device based on the vibration grating aim to meet the needs of the limit of a large three-dimensional watching visual area or a non-three-dimensional watching visual area and three-dimensional image high-resolution display. According to the technical scheme, the naked eye three-dimensional display method based on the vibration grating comprises the following steps that (1) a double-viewpoint three-dimensional composite image is manufactured through a three-dimensional image composite method based on a pixel unit; (2) the grating is manufactured, and the grating is placed in front of or behind a 2D display screen; (3) the grating structure obtained in the step (2) is vibrated in the horizontal direction, the inclined direction and the vertical direction according to certain speed, or is vibrated according to a specifically-designed vibrating curve or with a sub-pixel, or a pixel, or a plurality of pixels or a plurality of sub-pixels as a basic unit; (4) the double-viewpoint composite image is changed along with the change of the vibrating grating structure, the vibrating direction and the vibrating rule. The naked eye three-dimensional display method and device are mainly applied to naked eye three-dimensional display.

Provided is a stage system capable of being watched from multiple azimuths. The stage system comprises a main stage, four auxiliary stages, four mobile projection screens, and transparent aluminum laminated films. The four auxiliary stages are respectively arranged around the main stage, the four mobile projection screens are respectively arranged around the auxiliary stages, the transparent aluminum laminated films are respectively arranged on four faces around the main stage in an inclined mode, and therefore formed virtual images of pictures on the auxiliary stages and the mobile projection screens in the transparent aluminum laminated films can interact with performance of performers on the stages. The stage system solves the problem that a visual field is narrow due to the fact that performance on a traditional stage of a musical theater only can be watched from a single azimuth, combines live performance and spectra vision, and replaces spectra vision effect of a single face with a multi-azimuth and four-face through spectra vision form. In addition, the stage system can be combined with a mechanical stunt stage and flying man stunt, and builds the stage effect that men and scenes are suspended in air.

The invention provides a free three-dimensional display system which comprises a backlight source, a light control structure and a holographic function screen. The backlight source is used for ejecting light, an included angle between any two emergent light rays is smaller than a preset degree, the light control structure is used for controlling ejecting direction of the emergent light rays in thehorizontal direction, and the holographic function screen is used for diffusing the emergent light rays in the vertical direction. By arranging the backlight source with small included angles betweenemergent light rays, hopping visual areas generated by diffused light are avoided; a diffusion structure is utilized to diffuse the emergent light rays in the vertical direction, so that final observation range in the vertical direction is widened, display effect is enhanced, and three-dimensional display effect with large visual angle and real space sense is realized.

An interchangeable lens assembly including a first lens, a lens bracket coupled to the first lens, and at least one connection portion disposed around at least a portion of a perimeter of the lens bracket. A goggle including a goggle frame and at least one coupling point disposed on the goggle frame and adapted to couple to the at least one connection portion on the lens bracket. The at least one coupling point and the at least one connection portion may be corresponding magnetic portions adapted to couple to each other by a magnetic interaction, and/or the at least one connection portion may be a protrusion, and the at least one coupling point may be an aperture adapted to receive and couple to the protrusion. This allows the lens assembly to be attached to and detached from the goggle frame quickly and easily with reduced manual dexterity.

The disclosure relates to a method and a device for controlling a vehicle rearview mirror, the vehicle rearview mirror and a vehicle. The vehicle rearview mirror provided by the disclosure can realize 180-degree rotation of a rearview mirror shell through a rotation shaft, and surrounding of a vehicle body is viewed through a camera while the rotation angle of the rearview mirror shell is enlarged, so that the viewing range, about the surrounding of the vehicle body, of a driver is enlarged to a great extent, visual dead zones are reduced, and the occurrence of dangerous accidents is favorably avoided.

A method for the automatic adjustment of an angle of inclination of a vehicle headlight, having the steps: continuous measurement of a rate of rotation of the vehicle headlight; calculation of a change of a gravitational acceleration vector of the vehicle headlight in the coordinate system of the vehicle headlight, using the measured rate of rotation; calculation of an angle of inclination correction using the change of the gravitational acceleration vector; and adjustment of the angle of inclination of the vehicle headlight using the angle of inclination correction.

An auxiliary accessory for a vehicle rearview mirror having a linking segment with an outer end, a casing formed on the outer end of the linking segment with an outer rim and a mirror mounted in the casing has a cover and an auxiliary mirror assembly. The cover is detachably mounted on the casing of the vehicle rearview mirror and has a body, a mounting gap and multiple retaining tabs. The body has a shape corresponding to the casing of the vehicle rearview mirror and two mounting recesses. The auxiliary mirror assembly is detachably connected to the cover and has an auxiliary mirror mounted in one of the mounting recesses of the body to increase the viewing range of the vehicle rearview mirror.

A backlight module and a display device are provided. The backlight module includes an optical film and a light source. The optical film includes a main body and optical structures. The main body has a light-emitting surface, an optical surface, a first side surface and a second side surface. The optical structures are disposed on the main body. Each of optical structures has a first surface and a second surface. The first surface is inclined relative to the optical surface. A first angle is formed between the first surface and the optical surface. The second surface is inclined relative to the optical surface, and a second angle is formed between the second surface and the optical surface. The first angles and the second angles are acute angles, and the first angles of the optical structures vary along a first direction from the first side surface to the second side surface.

The invention provides a holographic display device which comprises a spatial light modulator and further comprises a lens component and multiple backlight sources. The multiple backlight sources are arranged on the light-in side of the spatial light modulator. The lens component is arranged between the backlight sources and the spatial light modulator. The multiple backlight sources can emit light in different directions to the lens component. The lens component can guide the received light in different directions to the spatial light modulator so images are formed in different positions on the light-out side of the spatial light modulator. The holographic display device can display multiple stereo images in different positions.

The embodiment of the invention provides a holographic display device and a control method thereof, relates to the technical field of display, and can enlarge the problem that the viewing range of holographic display is limited. The holographic display device comprises a light source, a space light modulator, a first light guider, a second light guider, a locator and a direction controller, wherein the space light modulator is used for modulating reading light provided by the light source and emitting output light under the control of a write signal; the locator is used for detecting an observation position; the direction controller is used for setting the light path of the output light according to the observation position and outputting control signals to the first light guider and the second light guider respectively according to the light path; the first light guider is used for receiving the control signal and guiding the output light into the second light guider along the light path; and the second light guider is used for receiving the control signal and guiding emergent light converged by the first light guider into the observation position along the light path.

The invention provides a three-dimensional naked eye suspension display system and method based on negative parallax. The three-dimensional naked eye suspension display system comprises a plurality of projection machines which are annularly arranged around a directional screen and used for providing parallax images, the directional screen which is arranged in front of the projection machines and used for conducting image processing on the parallax images provided by the projection machines, a motor which is connected with the directional screen through a rotating shaft and used for driving the directional screen to rotate at a predetermined speed, and an image display area which is located in front of the directional screen and used for conducting three-dimensional displaying on the processed images. According to the system and method, the directional screen is driven by the motor to rotate at a high speed, the projection machines are arrayed around the rotating shaft, when the directional screen directly faces one of the projection machines, the projection machine exits pupil for imaging, and an observation belt is formed above a displayer; hence, when the motor rotates by a circle, an entire circle is surrounded by the formed observation belt, the viewing range is effectively increased, circular viewing is achieved, meanwhile, the three-dimensional images can be viewed in a multi-person and multi-angle mode, and man-machine interaction is improved.

The invention provides a film-type patterned retarder 3D display method and a display device. The method comprises the steps of getting 3D image data, parsing the 3D image data into a line-interlaced 3D image signal, and driving pixel lines to display a left eye image and a right eye image corresponding to the 3D image signal at intervals, wherein a black image pixel line is inserted and displayed between the left eye image pixel line and the right eye image pixel line. By inserting a black image pixel line between a left eye image pixel line and a right eye image pixel line, the interval between a left eye image and a right eye image is increased, and crosstalk is avoided. Moreover, the angle of visibility of the display device is increased, the watching scope for 3D glasses is broadened, and the watching effect is improved.

A scope (1) for examining or surgically treating ears comprising a probe (2); at least one visualiser (3) on the probe having an optical configuration (7), and a light source (42) wherein the visualiser (3) is articulatable about a visualiser articulation axis (3a) by an orienting mechanism (4) for optimal viewing of the ear.

The invention belongs to the technical field of propaganda devices for enterprise image planning, and particularly relates to an energy-saving type outdoor propaganda device for enterprise image planning. At present, in most companies, propaganda boards for propagandizing enterprise images of the companies are presented in a fixed mode in a common mode, moving is inconvenient, the display effect is poor, and when no person observes the propaganda boards, propaganda content on the display boards is prone to fading after the propaganda boards are exposed to the sun for a long time. According tothe scheme, the device comprises a U-shaped moving base, wherein a U-shaped supporting base is fixed to the top of the U-shaped moving base, and a movable plate is slidably connected to the inner wallof the U-shaped supporting base. According to the device, through a rotary opening and closing mechanism, an observer can conveniently observe enterprise image propaganda words on the propaganda boards in a mounting cavity in a display cavity, the propaganda boards can be rotationally displayed, the observation range of the propaganda boards is enlarged, meanwhile, the attention of the observer is attracted, and the flow of people near the propaganda boards is increased.

The invention discloses a magnetic rotary display card special for a counter. The magnetic rotary display card comprises a display card body which comprises a rotary base and a display board; the display board is made of transparent plastic and divided into an upper layer and a lower layer; adsorption magnets are embedded into the four corners on the inner wall of the display board; a micro rotary motor is in threaded connection with the center of the rotary base; a battery case is in threaded connection with the right side of the rotary base; a magnetic spacing piece is in threaded connection with the bottom of the rotary base. The magnetic rotary display card is simple in structure, convenient to operate, attractive and generous, convenient to install and firm in structure, a magnetic principle is utilized, the magnetic rotary display card is convenient to fix and disassemble, the content is rotationally displayed, and the viewing range is enlarged.