76results about How to "Increase viewing area" patented technology

The data defining an object to be holographically reconstructed is first arranged into a number of virtual section layers, each layer defining a two-dimensional object data sets, such that a video hologram data set can be calculated from some or all of these two-dimensional object data sets. The first step is to transform each two-dimensional object data set to a two-dimensional wave field distribution. This wave field distribution is calculated for a virtual observer window in a reference layer at a finite distance from the video hologram layer. Next, the calculated two-dimensional wave field distributions for the virtual observer window, for all two-dimensional object data sets of section layers, are added to define an aggregated observer window data set. Then, the aggregated observer window data set is transformed from the reference layer to the video hologram layer, to generate the video hologram data set for the computer-generated video hologram.

The invention relates to a rear car triangle window assembly comprises glass and an injection-molded wrapping, wherein the injection-molded wrapping structure consists of a lip, a glue applying surface and a glue containing slot; the glue containing slot is used for containing and baffling glue; and the structures are simultaneously injection-molded without additional molds or procedures. As the gluing position is changed from on the glass to on the wrapping, thus reducing gluing space, further increasing the visual area of the glass and reducing the defective degree of the traditional gluing mode to a certain extent; in addition, as the glue containing slot is integrally injection-molded, the precision and consistency are high, the cost of an additional glue baffling tape is lowered, and accordingly the procedure of sticking the glue baffling tape is omitted, and further cost is lowered.

A minimal thin ring has an outer concave recess around the outside of the perimeter for receiving the teeth and a large circular central opening. A metal reinforced plastic frame has a removably attachable annular micro fluorescent light on a side facing into the mouth. An outer sanitized replaceable rubber guard surrounds the frame for contact with the teeth.

The invention provides a spliced display screen. The spliced display screen comprises a main display screen, an auxiliary liquid crystal display screen and an image segmentation device; the main display screen comprises first adhesive sealing frames or first frames; the auxiliary liquid crystal display screen is arranged at the position of at least one side of the first adhesive sealing frame or first frame; the auxiliary liquid crystal display screen comprises a second frame; the width of the second frame is smaller than that of each first adhesive sealing frame or first frame; image signals are segmented through the image segmentation device and transmitted to the main display screen and the auxiliary liquid crystal display screen to be displayed. According to the spliced display screen, the visual area of the main display screen can be increased or the discontinuity of images of the spliced main display screen can be eliminated or reduced.

The invention relates to a transparent electric conductor and preparation method thereof. The transparent electric conductor comprises a transparent substrate, a first dielectric layer, a second dielectric layer, a first conductive layer and a second conductive layer. The first dielectric layer and the second dielectric layer are sequentially stacked on the transparent substrate. The first conductive layer and the second conductive layer are respectively embedded in the first dielectric layer and the second dielectric layer. The first conductive layer and the second conductive layer are insulated from each other, and the first conductive layer and the second conductive layer are formed by a metal mesh. In the first conductive layer and the second conductive layer, the grid line width of the metal mesh is between 0.2 microns to 5 microns, and distance between two adjacent metal grid lines is between 50 microns to 500 microns. Replacement of expensive indium tin oxide with metal and that etching and the bridging are not needed in the preparation process can save materials and simplify the preparation process. The grid line width of the metal mesh and the distance between the two adjacent metal grid lines can ensure a larger viewing area, so that the transparent electric conductor is low in cost and high in transmittance.

The invention discloses a touch keyboard and an operation method thereof. The touch keyboard is applied to touch equipment including a touch panel and comprises two operation key areas and a display area, wherein the operation key areas are arranged on a position of the touch panel, which are close to both sides, and the display area is arranged in the center of the touch panel. The operation method of the touch keyboard comprises the following steps of: receiving an operation of a user on the operation key in the operation key areas by the touch keyboard; judging whether the operation is only a pressing operation; if yes, inputting a main input symbol corresponding to the operation key and displaying the main input symbol on the display area; and if not, confirming and displaying an input secondary input symbol on the display area. Accordingly, the invention is more convenient to operate, the keyboard occupies small screen space, other vision area is greater when a user inputs characters, and touch equipment without a keyboard is also convenient to input.

The invention relates to the technical field of portable electronic product housings, and discloses a method for manufacturing a narrow frame housing, a narrow frame housing, and a mould. The method for manufacturing the narrow frame housing is used to form a face shell on screen glass by injection molding. A mould is provided. The screen glass is fixed in the mould. The outer side wall of the screen glass and the outer edge of the rear end face are exposed to an injection molding channel. The mould is connected with an injection molding machine. The injection molding machine injects colloid to the injection molding channel of the mould, so that the colloid covers the outer side surface of the screen glass and the outer edge of the rear end face, thereby forming the face shell connected with the screen glass. The face shell and the screen glass are combined to form the narrow frame housing. After the colloid is solidified, the narrow frame housing is taken out from the mould. The screen glass of the narrow frame housing is directly fixed on the face shell through injection molding, so that the screen glass and a plastic housing form integrally. Adhering objects are not needed. On the premise that the screen glass is fixed, the area of a support region on the face shell is reduced, thereby achieving effect of a narrow frame and increasing visual area of the screen.

The invention relates to an air fryer stable in control. The air fryer comprises a base and a cover body hinged to the base. A fyer assembly is arranged in the machine base. The fryer assembly comprises an inner pot. A hot air assembly is arranged in the cover body, the hot air assembly comprises an air guide plate, a fan and a heating piece. The fan and the heating piece are positioned below theair guide plate; a transparent visual window is arranged on the cover body, the center of the hot air assembly deviates from the center of the fryer assembly, the distance between the center of the hot air assembly and the hinge center is smaller than the distance between the center of the fryer assembly and the hinge center, and the visual window surrounds the hot air assembly and is located above the inner pot. The hot air assembly is far away from a user relative to the fryer assembly, the area of the visual window located on one side of the user is enlarged, and therefore the user can visually observe the interior of the fryer assembly through the visual window. Meanwhile, the heights of the cover body and the whole air fryer can be effectively reduced, the gravity centers of the coverbody and the whole air fryer are reduced, and when the cover body is opened or closed, the whole air fryer is stably operated.

The invention discloses navigation system and method employing a front window projection of a car capable of increasing the display area of a screen of an embedded device and being convenient to watch the map by a driver. The technical scheme is that the system comprises a navigation terminal, a projection device and a projection screen, wherein a navigation module and a projection control module are arranged inside the navigation terminal; the projection control module controls the projection device; the projection device is connected with the projection control module of the navigation terminal, and projects by a set light wave band, and the projection screen is arranged on a front window of the car, and receives an image projected by the projection device.

The embodiment of the invention discloses a shell and screen assembly. A screen comprises cover glass, a touch panel and a display module, wherein the display module, the touch panel and the cover glass are connected in sequence from bottom to top. A protective frame is further arranged on the screen, and the bottom and the side faces of the display module are wrapped in the protective frame. Glue is arranged on the side faces of the screen, and a shell and the screen are connected through the glue. The invention provides the shell and screen assembly, and the protective frame is arranged on the display module of the screen. A backlight sheet of the display module is wrapped in the protective frame. The embodiment solves the problem that the width of a mobile phone frame is too large, and makes the display module / and the cover glass directly connected with the side faces of the shell. In this way, the width of the mobile phone frame can be reduced, and the proportion of the display area of the mobile phone screen is maximized. Meanwhile, the dimension of a mobile phone is controlled, and a user can enjoy a larger display area with the size of a mobile phone unchanged.

The present invention discloses a virtual reality (VR) playing method, apparatus and system. When a media player is used for playing, first, a 3D spherical object is created in a development environment; then, a new texture is created and shader options are created for the texture; after a color is selected for the texture, a multimedia panorama material is acquired from the media player or an external storage device; the texture and the multimedia panorama material are loaded to the surface of the 3D spherical object; and finally, a virtual camera component is disposed in the center of the 3D spherical object, and content of the multimedia panorama material is picked up by controlling an angle of the virtual camera and is played on the media player. According to the VR playing method, a curved surface and incomplete display in direct watching are prevented, and a visible area is increased by adjusting a picking up angle, so that the cost of VR experience is lowered, and an experiencer does not need to wear the VR apparatus, thereby having no dizzy and fatigue feeling.

The present invention provides a grid driving circuit and a grid driving method. The grid driving circuit of the invention comprises at least N signal lines, M switch modules and a control module. At least N signal lines are used for transmitting at least N driving signals. Each switch module is coupled with N scanning lines. The control module is coupled between at least N signal lines and N scanning lines of each switch module for generating M control signals for respectively controlling corresponding M switch modules, wherein when one in the M control signals causes a corresponding switch module conducted, the control module selects the driving signal of N successive signal lines in the N signal lines and successively transmits to N scanning lines of the conducted switch modules. The control module successively causes the M switch modules to be conducted for transmitting successive M*N driving signals.

The invention discloses a sealed door for a washer-disinfector, which comprises a door frame, an outer glass plate, a first inner glass plate, a second inner glass plate, an isolated strip, a pressure plate and a sealed strip, wherein the isolated strip is used for isolating the first inner glass plate from the second inner glass plate, the pressure plate is used for fixing the first inner glass plate and the second inner glass plate, and the sealed strip is used for sealing the space between the door frame and a chamber body for the washer-disinfector. Because the outer glass plate, the first inner glass plate and the second inner glass plate form a visual window, the visual area of the sealed door for the washer-disinfector is large, and the whole operating process and effect can be observed from the visual window; the door frame is provided with a dovetail groove, and the sealed strip is clamped in the dovetail groove, so that the sealed strip can be installed firmly, can not slide easily and has simple structure, thereby reducing the cost of the sealed door for the washer-disinfector and achieving the reliable seal; the first inner glass plate and the second inner glass plate are isolated by the aluminum alloy isolated strip with drying agents, so that the heat insulation effect is good, and no fog occurs; and the outer glass plate not only performs the function of heat insulation but also enables the whole sealed door for the washer-disinfector to be more beautiful.

The invention discloses a light guiding device, comprising a light pipe which is provided with a first light incidence surface and a first light extraction surface, a second light incidence surface which is adjacent to the first light extraction surface, a second light extraction surface, a photodiffusion unit of a first reflecting surface and a second reflecting surface, a first reflecting material layer which is deployed on the first reflecting surface and a second reflecting material layer which is deployed on the second reflecting surface. The area of the second light extraction surface is larger than that of the first light extraction surface. An optical signal provided by a light source is applicable to getting through the first light incidence surface, the first light extraction surface and the second light incidence surface, and is also applicable to being reflected by the second reflecting surface and the first reflecting surface to exit from the second light extraction surface.

The invention discloses an intelligent home theater system, which includes a wireless AP unit, a mobile control terminal, an intelligent central control host, an intelligent infrared transponder, an equipment control unit, a control generator, air conditioning equipment, lighting equipment, curtain equipment, and an intelligent relay module , function machines, speakers, XBOX units, game control devices, LCD screens, HDMI units, set-top boxes, projectors and projection screens. The combination of game, audio and intelligent control unit in the present invention enriches functions such as KTV and somatosensory games, realizes the diversification of video and television, and adopts the projector with external projection line signal multiplier, which can greatly improve the visual area and definition of the picture. Make the viewing effect of the home theater better; the whole can be controlled by mobile devices, and various plot modes can be quickly switched in and switched freely, so as to save manual control of each audio-visual equipment and environmental equipment, allowing viewers to use the most intelligent and fast way to achieve the desired entertainment content.

The invention discloses an LED naked-eye 3D film viewing system and an installation method thereof. The LED naked-eye 3D film viewing system comprises an LED naked-eye 3D display screen and an auditorium. The auditorium is arranged inside one plane and is parallel to the LED naked-eye 3D display screen. The distances between the eyes of all audiences and the LED naked-eye 3D display screen are the best viewing distances. The installation method comprises the following steps that the auditorium is arranged inside the plane, the LED naked-eye 3D display screen is arranged right ahead of the auditorium, the LED naked-eye 3D display screen is parallel to the auditorium, and the distances between the eyes of the audiences on the auditorium and the LED naked-eye 3D display screen are the best viewing distances of the LED naked-eye 3D display screen. According to the LED naked-eye 3D film viewing system with the adopted installation method of the technical scheme, due to the facts that the auditorium is parallel to the LED naked-eye 3D display screen, and the distances between the eyes of all the audiences on the auditorium and the LED naked-eye 3D display screen are the best viewing distances of the LED naked-eye 3D display screen, the best viewing zone of the LED naked-eye 3D film viewing system can be increased.

Provided is an interactive keyboard provided with a visual display. The keyboard comprises display equipment and a plurality of buttons arranged on the display equipment, wherein the each button can be pressed down mechanically, so that the button is movable for facing to or far from the display equipment, and the each button is further configurated to allow an image light coming from the display equipment to pass through. The keyboard further comprises an electricity trace network which is arranged under the plurality of buttons and formed by at least partly adopting transparent conducting materials, in order to allow the image light coming from the display equipment to pass through. For the each button, the electricity trace network can be operated to generate an electrical signal associated with the button, in order to response the pressing of the button towards the display equipment.

The invention provides a rearview mirror capable of avoiding an automobile blind area. A blind area mirror with the same size as a rearview plane mirror is stuck to the back face of the rearview plane mirror. When an automobile steers, a rearview mirror overturning mechanism automatically turns the blind area mirror to the front face and turns the rearview plane mirror to the back face. When the automobile returns to normal driving, the rearview mirror overturning mechanism automatically turns the blind area mirror to the back face and turns the rearview plane mirror to the front face. The rearview mirror has the advantages that compared with existing solutions, the mirror surface of the blind area mirror is larger, so that the visual area is larger, the image distortion is small, and the blind area problem can be better solved. Meanwhile, when the automobile does not steer, and a driver needs to check the blind area condition, the blind area mirror can also be turned over manually and the direction is adjusted through an operating button on a steering wheel or a driving cab.

The invention provides an optical lens, an imaging device and a terminal. The optical lens comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens which are sequentially arranged from the object side to the image side along the optical axis. The first lens with negative refractive power has an object-side surface and an image-side surface being concave ina paraxial region thereof. The second lens with positive refractive power has an object-side surface and an image-side surface being convex in a paraxial region. The fifth lens with positive refractive power has an image-side surface being convex in a paraxial region thereof. The sixth lens element with negative refractive power has an object-side surface being convex in a paraxial region and an image-side surface being concave in a paraxial region. The optical lens meets the relational expression: 60deg / mm<FOV / f<100deg / mm. The optical lens can achieve the effects of high image quality and wide angle.

The invention provides a measuring device for a ship water gauge, and relates to the technical field of ship auxiliary equipment. The measuring device comprises a vehicle body, a main motor and a camera device, wherein a mechanical arm of the vehicle body is provided with the camera device, the camera device comprises a camera, a driving motor and a reflective mirror assembly, the driving motor is adjacent to the camera, the driving motor and the camera are respectively and fixedly arranged on a bottom plate of the vehicle body, the reflective mirror assembly is connected with the driving motor through a small shaft, the small shaft is connected with the driving motor through a flange, and the main motor is fixedly arranged on the bottom plate and is adjacent to the camera device. The measuring device for the ship water gauge has the advantages that the cost is low, the operation is simple, and the safety and the reliability are realized.

The invention discloses a double-ring type reinforcing structure of a rear air window. The structure comprises a top cover supporting beam assembly, a vehicle body D column and a vehicle body lower framework, the top cover supporting beam assembly located at the tail portion of a vehicle, the vehicle body D column and the vehicle body lower framework located at the tail portion of the vehicle are fixed to form a first longitudinal annular structure, a second longitudinal annular structure is fixed to the first longitudinal annular structure, and rear windshield glass is bonded and fixed to the second longitudinal annular structure. According to the invention, the combination of the two longitudinal annular structures is adopted, a traditional installation structure of rear air window assembly glass and sheet metal parts is replaced, the visual area of a rear air window is greatly increased, and the viewing experience of passengers is improved. The peripheral structure of the rear air window is constructed by adopting section bars, so that the cost of stamping part dies is reduced, and meanwhile, light weight is realized.

The invention relates to an indoor security and protection robot based on Arduino. The indoor security and protection robot comprises a quadruped robot body and a camera tripod, the camera tripod is arranged on the quadruped robot body, the quadruped robot body comprises a bearing platform and multi-joint supporting legs, the multi-joint supporting legs are fixed with the bearing platform, the multi-joint supporting legs drive the bearing platform to move, the camera tripod comprises a rotary support, a rotary steering engine, a pitching support, a pitching steering engine and a camera, one end of the rotary support is fixed to the bearing platform, a fixed end of the rotary steering engine is fixed at the other end of the rotary support, a fixed end of the pitching steering engine is fixed with a movable end of the rotary steering engine, the pitching support is fixed with a movable end of the pitching steering engine, and the camera is arranged on the pitching support. According to the indoor security and protection robot, the quadruped robot body can move, the camera tripod can rotate, the view area is enlarged, and monitoring can be better carried out.

The invention relates to a multi-angle viewing angle vehicle rear view mirror and a using method. The multi-angle viewing angle vehicle rear view mirror comprises a plane mirror arranged inside a housing, a slant mirror is horizontally arranged under the plant mirror, a spherical wide-angle mirror is vertically arranged at the outer side of the plane mirror and the slant mirror, and the slant mirror, the spherical wide-angle mirror and the plant mirror are an integral structure. When the multi-angle viewing angle vehicle rear view mirror is in use, according to normal operation, the direction and the position of the plant mirror are adjusted, that is, the horizontal angle of the plant mirror and the vertically slant angle of the mirror plane are adjusted so that the image of the distance of tires and hubs of a rear vehicle and the curb can be seen through the slant mirror when the vehicle backs or advances; the image of the distance of vehicles driving on the lane at the outer side of the vehicle can be observed through the spherical wide-angle mirror; the image of the distance of rear vehicles outside the vehicle can be observed through the plane mirror. The multi-angle viewing angle vehicle rear view mirror has the advantages that the multi-angle viewing angle vehicle rear view mirror is an integral multi-angle viewing angle vehicle rear view mirror, after positioning at one time, multi-angle viewing angle monitoring of the vehicle blind area can be achieved, no adjustment is needed, and thus the safety of the vehicle, a driver and passengers is more effectively guaranteed.

The invention relates to an automobile sun shield with a hinge type mirror cover and a decoration-frame-free whole-mirror-surface cosmetic mirror. The automobile sun shield comprises a mirror surfaceEPP, a framework sub-assembly and a back surface EPP which are sequentially connected, and is characterized by further comprising a cosmetic mirror assembly, wherein the cosmetic mirror assembly comprises the hinge type mirror cover, the mirror and an LED lamp base, the hinge type mirror cover comprises a first resin plate and a second resin plate, a first magnetic strip and a switch magnet are arranged in the first resin plate, a second magnetic strip is arranged in the second resin plate, and the first resin plate and the second resin plate are coated with fabrics; the LED lamp base is arranged on the framework sub-assembly, a PCB, two LED lamps, a third magnetic strip and a fourth magnetic strip are arranged on the LED lamp base, the mirror is connected to the LED lamp base, the PCB isconnected to the framework sub-assembly and the two LED lamps, the LED lamp base is connected to the hinge type mirror cover, and a fifth magnetic strip is arranged between the mirror surface EPP andthe back surface EPP.

The invention provides an automobile sun shielding board with a large mirror surface cosmetic mirror. The automobile sun shielding board with the large mirror surface cosmetic mirror comprises a mirror surface EPP, a framework sub assembly and a back surface EPP, wherein the mirror surface EPP, the framework sub assembly and the back surface EPP are sequentially connected, a cosmetic mirror assembly is arranged on the framework sub assembly, and the framework sub assembly comprises an abnormal shaped aluminum tube, an injection molding framework, an annular steel wire framework and a front plug. The automobile sun shielding board with the large mirror surface cosmetic mirror is characterized in that the cosmetic mirror assembly comprises a large mirror surface cosmetic mirror body, a mirror frame and a decorative frame, and the decorative frame, the mirror frame and the injection molding framework are sequentially connected. The large mirror surface cosmetic mirror body and a roller shutter device are arranged in the mirror frame, a plurality of cosmetic mirror buckles are arranged on the back surface of the mirror frame, a plurality of decorative frame buckles are arranged in themirror frame, and a plurality of decorative frame buckle slotted holes are formed in the back surface of the decorative frame. A PCB is fixedly connected to the side surface of the mirror frame, an abnormal shaped aluminum tube extension structure is arranged on the lower part of the abnormal shaped aluminum tube and fixedly fixed to the injection molding framework, a honeycomb mesh-shaped enhancing structure is arranged on the injection molding framework, and a weaken energy absorption structure is arranged beside a hook shaft of the injection molding framework.

The invention provides a device suitable for multimedia mathematical education. According to the scheme, the device comprises T-shaped threaded rods are bilaterally symmetrical and are rotatably connected with the two sides of a blackboard wall; two special-shaped nuts which pass through a T-shaped stud, of the T-shaped threaded rod, at intervals up and down are rotatably connected with two connecting rods; the other ends of the upper connecting rod and the lower connecting rod are rotatably connected with blackboards through pin shafts; a limiting structure for limiting each special-shaped nut to rotate is arranged between each special-shaped nut and a guide clamping groove vertically fixed in a wall body; each T-shaped threaded rod is connected with a driving device through meshed bevel gears; and a suction structure for limiting the blackboards from being freely separated from the blackboard wall and capable of moving up and down is arranged between the blackboard frame and the corresponding blackboard wall body. The device suitable for multimedia mathematical education solves the position conflict of the original fixed blackboard and a multimedia display curtain, enlarges the effective use area of the blackboard and the multimedia visible area, enlarges the view angle of the blackboard, improves the visuality of blackboard writing, guarantees continuous exhibition of mathematical education deducing process blackboard writing, and is favorable for carrying out mathematical education.

The invention relates to a portable personal computer, which comprises a first display unit, a second display unit, a connecting device and a control device, wherein the first display unit and the second display unit are pivotally connected through the connecting device; at least one between the first display unit and the second display unit is used for sensing external operation and generating a corresponding operating signal according to the external operation; and the control device is used for receiving the operating signal and driving the first display unit and / or the second display unit to display the operating signal. At least one between the display units of the portable personal computer has the function of being capable of receiving the user operation and generating the corresponding operating signal according to the user operation; and the portable personal computer increases the visual area and simultaneously does not need to take the prior keyboard as an input device, so as to save the space and be favorable for the light and thin tendency of notebook computers.

The invention discloses a 360-degree rotatable lens and instrument for laparoscopic surgery. The 360-degree rotatable instrument comprises a fixing rod, a connecting rod, a working box and a lighting box, wherein the connecting rod is arranged at the front end of the fixing rod, the working box is installed at the bottom end of the connecting rod, the lighting box is arranged on the surface of the connecting rod, a supporting plate is installed in the working box, a servo motor is installed on one side of the top of the supporting plate, and a movable lead screw is installed at the output end of the servo motor. Through the arrangement of the working box, when a medical worker needs to make an abdominal cavity lens perform various adjustments, a servo motor, a movable lead screw and a threaded sleeve work in a matched mode, so the inclination angle of the abdominal cavity lens can be adjusted; a driving motor and a supporting plate work in a matched mode, and the output end of the driving motor can drive the supporting plate to rotate, so the rotation angle of the above structure can be adjusted; and various adjusting modes are adopted, so the observation area of the abdominal cavity lens can be further increased, and the working efficiency of medical staff is improved.

The invention discloses a webpage top navigation bar control method and device, equipment and a storage medium. The method comprises the following steps: identifying the rolling distance of the mousepointer; judging whether the rolling distance of the mouse pointer is greater than the height of the webpage top navigation bar or not; and if yes, controlling the webpage top navigation bar to be located at the webpage bottom end. The device comprises an identification module, a judgment module and a control module. Whether the mouse pointer rolling distance is larger than the height of the webpage top navigation bar or not is judged by recognizing the mouse pointer rolling distance, and if yes, the webpage top navigation bar is controlled to be located at the webpage bottom end. The problemsthat in the prior art, due to the fact that a navigation bar ceiling is not beneficial to user clicking, the poor experience is caused, and the visual area of a webpage becomes small are solved, thebrowsing experience of a user is improved, and the navigation bar ceiling is beneficial to increasing the visual area of the webpage visually.

The invention relates to the technical field of 3D displays, in particular to a multi-viewpoint directional naked eye 3D display. The structure of the multi-viewpoint directional naked eye 3D displaycomprises a backlight source, an LCD switch plate and a cylindrical lens plate, and the backlight source, the LCD switch plate and the cylindrical lens plate are sequentially aligned and attached fromback to front, wherein a convex lens plate is fixedly arranged in front of the cylindrical lens plate, and a liquid crystal display panel is attached in front of the convex lens plate; the LCD switchplate is provided with a plurality of viewpoint units, the plurality of pairs of viewpoint units are sequentially arranged along the length direction of the LCD switch plate, a space is reserved between the adjacent viewpoint units, each viewpoint unit comprises an L-column LCD unit and an R-column LCD unit, the L-column LCD unit is positioned on the left side and emits light beams received by the left eye, and the R-column LCD unit is positioned on the right side and emits light beams received by the right eye; the convex lens plate is provided with a plurality of convex lenses, the main optical axis of each convex lens is perpendicular to the plate surface of the cylindrical lens plate, and each convex lens correspondingly receives the light beam of one viewpoint unit.