CN106205405B - A kind of naked eye 3D holography double-side display device of view-based access control model persistence effect - Google Patents
A kind of naked eye 3D holography double-side display device of view-based access control model persistence effect Download PDFInfo
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/005—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes forming an image using a quickly moving array of imaging elements, causing the human eye to perceive an image which has a larger resolution than the array, e.g. an image on a cylinder formed by a rotating line of LEDs parallel to the axis of rotation
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Abstract
The present invention provides a kind of naked eye 3D holography double-side display devices of view-based access control model persistence effect, utilize the principle of " the point is moved into a line, line move into face ", by colorful LED lamp pearl, that is, concentrate the RGB LED lamp bead of an encapsulation to arrange in the form of a line, i.e., " lamp bar ".The display device includes rotary drive unit, two linking arms for further including two groups of arms and being connected between the rotary drive unit and two groups of arms, the linking arm by the rotary drive unit driving and drive two groups of arms the rotary drive unit opposite sides rotate, formed 3D holography double-sided display.
Description
Technical field
The present invention relates to dimension display technologies fields, more particularly, to a kind of naked eye 3D of view-based access control model persistence effect
Holographic double-side display device.
Background technique
Compared to flat LED display technology, three-dimensional (3D) stereoscopic image display have contain much information, can be by actual scene
Three-dimensional information whole reproducing come feature, allow viewer from directly find out on display the distance of each object in image,
Depth, therefore viewer can obtain more comprehensive and intuitive information.Previous people usually can be by means of the mode of 3D glasses
Realize the observation of three-dimensional information.This mode mainly utilizes principle of parallax, when viewer watches picture, as long as providing shooting
Two groups of images that position is slightly staggered are watched for right and left eyes respectively, cause the difference of the depth of field, can see that has a solid
The picture of sense.The common method for realizing principle of parallax mainly has color separation, light splitting, timesharing and grating etc..The solid of wears glasses
Display technology in many occasions and is not suitable for although having good stereo display effect.
With the development of 3D technology, naked eye three-dimensional LED technology is in virtual reality technology, 3D game, 3D advertisement, aviation boat
It, the fields such as nuclear technology, biomolecule have wide practical use.However, in terms of light-emitting diode display, it is domestic at present existing
Light-emitting diode display is still based primarily upon planar LED display, wherein colorful lamp bead (i.e. tri- LED of RGB) is concentrated on a closing
Device in and by the device by matrix form arrange, by line by line or interleaved form display picture.Current is naked
Eye 3D auto-stereoscopic display is mainly based upon binocular parallax and the raster pattern 3D auto-stereoscopic display developed.
In the prior art, application No. is the Chinese invention patent applications of CN201510627595 to disclose a kind of omnidirectional's naked eye
3D display equipment, including the motor that shaft and drive shaft rotate, shaft side wall is equipped with a plurality of equally distributed pixel hairs
Luminous point, and it is multiple around between the shaft side wall pixel light emission point being arranged and spindle central in sustained height
Apart from different.Application No. is the Chinese utility model patents of CN201620046587 to disclose a kind of bore hole 3D display device, packet
LED display board, hurricane globe, pedestal, turntable, conducting slip ring, hollow shaft motor are included, the conducting slip ring is mounted on hollow shaft electricity
On machine, conducting slip ring and hollow shaft motor are located in pedestal；The turntable is mounted on conducting slip ring, and turntable is located on pedestal
Side；The hurricane globe is mounted on the upside of turntable；The LED display board covers in cylindrical hurricane globe, and is fixed on and turns
On disk.Application No. is CN201120442036 to disclose a kind of also similar naked eye three-dimensional display device.
However, the display device of above-mentioned naked eye 3D display technology manufacture all has the disadvantage that: due to being relied on when display
Be constitute panel type display device, with the expansion of display area, the display device quantity that display includes will gradually increase
More, cost will be higher and higher, seriously constrains the current expectation for generally wishing ornamental large screen display.In addition, with display
The increase of panel area, weight, quantity of device etc. will bring difficult to install, difficult inconvenience, especially when
When it rotates, the rotation of the panel of large volume will be easy to increase panel itself significantly along the centrifugal action of rotation radial direction
By force, so that the internal stress of display panel changes, the aging of panel has been not only speeded up, and has be easy to cause the inside of panel
The damage of liquid crystal structure or circuit.In addition, windage noise, wind-force and the heat that panel generates will when panel rotational time is too long
It is constantly diffused out in rotary course, influences the ornamental experience of 3D display picture.
Summary of the invention
In order to overcome existing naked eye 3D display panel there are the drawbacks of, the present invention provides a kind of view-based access control models to persist effect
The naked eye 3D holography double-side display device answered.
The present invention is to utilize the principle of " the point is moved into a line, line move into face ", by colorful LED lamp pearl, that is, concentrates the RGB of an encapsulation
LED lamp bead arranges in the form of a line, i.e. " lamp bar ".Whole system can be made of four lamp bars, and lamp bar is allowed to revolve with certain speed
Turn；Form the cylinder monitor of a display.By having an X-rayed background, 3D is realized.
After lamp bar is by certain track movement, a track plane will form, each RGB lamp bead will form trajectory line,
Lamp bar revolves in cycle turnover (this period is less than picture in human eye residence time), each RGB lamp bead is in its trajectory line
Will have one it is corresponding at the time of it is corresponding, then track plane that lamp bar is formed and picture to be shown is needed to correspond, according to picture
The lamp bar that movement is lighted needed for face is formed by pixel corresponding to track plane (RGB lamp bead), so that it may show picture, due to
It is to be rotated by lamp bar, the track plane that real background can be moved by lamp bar is " saturating " to be come out, and the screen theme of display is floated
It shows among the environment of reality, and reaches the display effect of 3D a kind of.
According to an aspect of the present invention, the naked eye 3D holography double-side display device packet of view-based access control model persistence effect of the invention
Include: rotary drive unit, further include two groups of arms and be connected to the rotary drive unit and two groups of arms it
Between two linking arms, the linking arm by the rotary drive unit driving and drive two groups of arms in the rotation
The opposite sides of driving unit rotates, and forms 3D holography double-sided display.
Further, every group of lamp bar includes four lamp bars, and each lamp bar includes multiple arrangements linear each other
RGB LED lamp bead, each RGB LED lamp bead includes one group of red sub-pixel, green sub-pixels and blue subpixels, and
When the part that the RGB LED lamp bead is lit is the part for needing to carry out 3D display, the part not being lit is after rotation
It appears background to come, so that it is two-sided to form 3D holography.
Further, the 3D holography double-side display device further include: two fixed disks are respectively used to connect the rotation
One of driving unit and two groups of linking arms.
Further, the rotary drive unit includes the motor being sequentially connected in series, reduction gearbox, shaft joint and is built-in with control
The fixed disk of device, the fixed disk include be spaced each other certain angle strip link slot and be set to the strip link slot it
Between the control circuit board with the controller, the controller is used for other in the 3D holography double-side display device
Component is controlled.
Further, the control circuit board also has for driving the all-colour LED of the lamp bar to drive correspondingly
Chipset.
Further, each link slot of the fixed disk is in that " ten " font is set to the fixed disk and each link slot
Intersection point is the center of the fixed disk.
Further, the fixed disk being sequentially connected in series, servo motor driving circuit, servo motor and reduction gearbox are collected
Be formed as the rotary drive unit with being integrally formed.
According to another aspect of the present invention, it is filled according to the naked eye 3D holography double-sided display of above-mentioned view-based access control model persistence effect
It sets, the present invention provides a kind of naked eye 3D holography double-sided display methods of view-based access control model persistence effect, include the following steps:
(1) video to be shown is divided into multiple frame pictures, the frame picture includes multiple bitmap data blocks, each position
Diagram data block corresponds to the RGB LED lamp bead；
(2) the frame picture that each bitmap data block is constituted is converted into array, that is, is converted into making the upper right of frame picture
Angle corresponds to first pixel of the array, and the lower left corner of frame picture corresponds to the lattice of the last one pixel of the array
Formula, enabling each arm length is n, and RGB LED lamp bead width thereon is b and lamp bead quantity is m, then the array is expressed as
RGB00,RGB01,RGB02,RGB03……RGB0i……RGB0m
……
RGBj0,RGBj1,RGBj2,RGBj3……RGBji……RGBjm
……
RGBn0,RGBn1,RGBn2,RGBn3……RGBni……RGBnm
Wherein i is the abscissa of the central point for the fixed disk connecting with certain group arm, and j is the fixation connecting with certain group arm
The ordinate of the central point of disk；
(3) data being converted to the data under the rectangular coordinate system of the array format under polar coordinate system；
Wherein r is to enable the rectangular co-ordinate of one point M of space from the fixed disk to the length of the linking arm the arm
It is (x, y) that polar coordinates are (ρ, θ), then enables ρ2=x2+y2, andWherein x ≠ 0；
(4) when detecting that any lamp bar is displaced the width b of a lamp bead by angle or displacement sensor, to each lamp bar
The refreshing for carrying out primary display data, refreshes angle, θ=360/ (2r/b), i.e., lamp bar is every when turning θ, and lamp bar refreshes one group of data,
When being refreshed, four arms into each group lamp bar distribute data 1#LED data, 2#LED data, 3#LED number respectively
According to 4#LED data, these LED data are the ashes that each RGB LED lamp bead is applied directly to by the chroma data of pixel
The LED data that degree obtains after, that is, when sending data to lamp bead, what is directly transmitted is chrominance information:
Send data to 1#LED arm:
Send data to 2#LED arm:
Send data to 3#LED arm:
Send data to 4#LED arm:
Further, the display area size of the 3D holography double-side display device is 2 π r2, resolution ratio m*t, institute
The refreshing frequency for stating lamp bar is 2 π r/b.
Further, the revolving speed of the motor is 360.57 revs/min, to reach 24 frames/second video image brush to be shown
New rate.
The present invention is to be totally different from traditional led displaying principle, and to realize a kind of 3D display, solving background is display picture
Face background allows background frame to become a kind of background of reality, that is, the background of display local environment, makes the theme of display floating
Now among the environment of reality.This display can realize 360 degree of panorama displays, penetrating before and after display, can allow the content of display
Emerge among reality scene, gives viewer a kind of effect of true 3D.
The beneficial effect comprise that
(1) stand here it is shown that device front and back two sides, can watch, it can the display content for seeing display, can also
To see opposite by display, give viewer a kind of effect of true 3D；
(2) present invention is to be totally different from naked eye 3D LED displaying principle in the prior art, to realize a kind of 3D display,
Existing naked eye 3D light-emitting diode display can be fundamentally avoided to install and use to user's bring during installation and use
Experience the problem of difference；
(3) present invention be not in existing naked eye 3D light-emitting diode display in rotary course centrifugal action to its panel itself
The stress influence of generation fundamentally improves the service life of naked eye 3D light-emitting diode display.
(4) background of the invention that background frame can be allowed to become a kind of reality, that is, the background of display local environment,
The theme of display is allowed to emerge among the environment of reality.This display can realize 360 degree of panorama displays, and display front and back is penetrating,
The content of display can be allowed to emerge among reality scene, a kind of completely new to viewer, true 3D effect.
Detailed description of the invention
Fig. 1 shows the composition frame of the naked eye 3D holography double-side display device of view-based access control model persistence effect according to the present invention
Figure.
Fig. 2 shows the processes of the naked eye 3D holography double-sided display method of view-based access control model persistence effect according to the present invention
Figure.
Specific embodiment
As shown in Figure 1, according to an aspect of the present invention, the present invention provides a kind of naked eye 3D of view-based access control model persistence effect
Holographic double-side display device includes: rotary drive unit 2, further includes two groups of arms and to be connected to rotation driving single
Member 2 and two groups of arms between two linking arms 3, the linking arm 3 by the rotary drive unit 2 driving and drive
Two groups of arms are rotated in the opposite sides of the rotary drive unit 2, form 3D holography double-sided display.
Preferably, every group of lamp bar includes four lamp bars, and each lamp bar includes multiple arrangements linear each other
RGB LED lamp bead, each RGB LED lamp bead includes one group of red sub-pixel, green sub-pixels and blue subpixels, and is worked as
The part that the RGB LED lamp bead is lit is the part for needing to carry out 3D display, and the part not being lit makes after rotation
Background, which appears, to be come, so that it is two-sided to form 3D holography.
Preferably, the 3D holography double-side display device further include: two fixed disks 4 are respectively used to connect the rotation
One of driving unit 2 and two groups of linking arms 3.
Preferably, the rotary drive unit 2 includes the motor being sequentially connected in series, reduction gearbox, shaft joint and is built-in with control
The fixed disk 4 of device, the fixed disk 4 include being spaced each other the strip link slot of certain angle and being set to the strip link slot
Between the control circuit board with the controller, the controller is used for its in the 3D holography double-side display device
He controls component.According to the present embodiment, controller uses ARM, as the controller of arm 1, with dealing with data, electricity
Machine and the control of the power supply of whole system and safety detection.
The above-mentioned lamp bar with RGB LED lamp bead is packaged into PCBA and is further encapsulated in profile, then this four
Each link slot that root profile is embedded in correspondingly in the fixed disk 4 is simultaneously screwed in the corresponding company
In access slot.
Preferably, the control circuit board also has for driving the all-colour LED of the lamp bar to drive core correspondingly
Piece group.
Preferably, each link slot of the fixed disk 4 is in that " ten " font is set to the fixed disk 4 and each link slot
Intersection point is the center of the fixed disk 4.
Preferably, the fixed disk 4 being sequentially connected in series, servo motor driving circuit, servo motor and reduction gearbox are collected
Be formed as the rotary drive unit 2 with being integrally formed.The reduction gearbox is that direct cooperation motor uses, and belongs to machinery and matches
It closes.
As shown in Fig. 2, the present invention provides according to the naked eye 3D holography double-side display device of above-mentioned view-based access control model persistence effect
The naked eye 3D holography double-sided display method of view-based access control model persistence effect a kind of, includes the following steps:
(1) video to be shown is divided into multiple frame pictures, the frame picture includes multiple bitmap data blocks, each position
Diagram data block corresponds to the RGB LED lamp pearl；
(2) the frame picture that each bitmap data block is constituted is converted into array, that is, is converted into making the upper right of frame picture
Angle corresponds to first pixel of the array, and the lower left corner of frame picture corresponds to the lattice of the last one pixel of the array
Formula, enabling each length of arm 1 is n, and RGB LED lamp bead width thereon is b and lamp bead quantity is m, then the array is expressed as
RGB00,RGB01,RGB02,RGB03……RGB0i……RGB0m
……
RGBj0,RGBj1,RGBj2,RGBj3……RGBji……RGBjm
……
RGBn0,RGBn1,RGBn2,RGBn3……RGBni……RGBnm
Wherein i is the abscissa of the central point for the fixed disk 4 connecting with certain group arm, and j is to consolidate with what certain group arm was connect
The ordinate of the central point of price fixing 4；
(3) data being converted to the data under the rectangular coordinate system of the array format under polar coordinate system；
Wherein r is to enable the right angle of one point M of space from the fixed disk 4 to the length of the linking arm 3 arm 1
Coordinate is (x, y), and polar coordinates are (ρ, θ), then enables ρ2=x2+y2, andWherein x ≠ 0；
(4) when detecting that any lamp bar is displaced the width b of a lamp bead by angle or displacement sensor, to each lamp bar
The refreshing for carrying out primary display data, refreshes angle, θ=360/ (2r/b), i.e., lamp bar is every when turning θ, and lamp bar refreshes one group of data,
When being refreshed, four arms 1 into each group lamp bar distribute data 1#LED data, 2#LED data, 3#LED number respectively
According to 4#LED data, these LED data are the ashes that each RGB LED lamp bead is applied directly to by the chroma data of pixel
The LED data that degree obtains after, that is, when sending data to lamp bead, what is directly transmitted is chrominance information:
Send data to 1#LED arm:
Send data to 2#LED arm:
Send data to 3#LED arm:
Send data to 4#LED arm:
Preferably, the display area size of the 3D holography double-side display device is 2 π r2, resolution ratio m*t is described
The refreshing frequency of lamp bar is 2 π r/b.
Preferably, the revolving speed of the motor is 360.57 revs/min, is refreshed with reaching 24 frames/second video image to be shown
Rate.
Embodiments of the present invention are explained in detail above in conjunction with attached drawing, but the present invention is not limited to above-mentioned implementations
Mode within the knowledge of a person skilled in the art can also be without departing from the purpose of the present invention
It makes a variety of changes.The above described is only a preferred embodiment of the present invention, not making limit in any form to the present invention
System, although the present invention has been disclosed as a preferred embodiment, however, it is not intended to limit the invention, any skill for being familiar with this profession
Art personnel, without departing from the scope of the present invention, be modified when the technology contents using the disclosure above or
It is modified to the equivalent embodiment of equivalent variations, but without departing from the technical solutions of the present invention, technology according to the present invention is real
Matter, within the spirit and principles in the present invention, any simple modifications, equivalent substitutions and improvements to the above embodiments
Deng, fall within the scope of protection of the technical scheme of the present invention within.
Claims (3)
1. a kind of naked eye 3D holography double-sided display side of the naked eye 3D holography double-side display device according to view-based access control model persistence effect
Method,
The naked eye 3D holography double-side display device of the view-based access control model persistence effect includes: rotary drive unit, which is characterized in that
The naked eye 3D holography double-side display device further includes two groups of arms and is connected to the rotary drive unit and described
Two linking arms between two groups of arms, the linking arm by the rotary drive unit driving and drive two groups of arms
It is rotated in the opposite sides of the rotary drive unit, forms 3D holography double-sided display；Every group of lamp bar includes four lamp bars, respectively
Root lamp bar includes the RGB LED lamp bead of multiple arrangements linear each other, and each RGB LED lamp bead includes one group of red son
Pixel, green sub-pixels and blue subpixels, and when the part that the RGB LED lamp bead is lit is to need to carry out 3D display
Part, it is next that the part not being lit after rotation appears background, so that it is two-sided to form 3D holography；
The 3D holography double-side display device further include: two fixed disks are respectively used to connect the rotary drive unit and institute
State one of two groups of linking arms；
The rotary drive unit includes the motor being sequentially connected in series, reduction gearbox, shaft joint and the fixed disk for being built-in with controller, institute
State fixed disk include be spaced each other the strip link slot of certain angle and be set between the strip link slot have it is described
The control circuit board of controller, the controller is for controlling the other component in the 3D holography double-side display device
System；
The control circuit board also has the all-colour LED driving chip group for driving the lamp bar correspondingly；
Each link slot of the fixed disk is described solid in the intersection point that " ten " font is set to the fixed disk and each link slot
The center of price fixing；
The fixed disk being sequentially connected in series, servo motor driving circuit, servo motor and reduction gearbox are integrated into integrated landform
As the rotary drive unit；
Described method includes following steps:
(1) video to be shown is divided into multiple frame pictures, the frame picture includes multiple bitmap data blocks, each bitmap number
Correspond to the RGB LED lamp bead according to block；
(2) the frame picture that each bitmap data block is constituted is converted into array, that is, is converted into making the upper right corner pair of frame picture
Should be in first pixel of the array, the lower left corner of frame picture corresponds to the format of the last one pixel of the array, enables
Each arm length is n, and RGB LED lamp bead width thereon is b and lamp bead quantity is m, then the array is expressed as
RGB00, RGB01, RGB02, RGB03……RGB0i……RGB0m
……
RGBj0, RGBj1, RGBj2, RGBj3……RGBji……RGBjm
……
RGBn0, RGBn1, RGBn2, RGBn3……RGBni……RGBnm
Wherein i is the abscissa of the central point for the fixed disk connecting with certain group arm, and j is the fixed disk connecting with certain group arm
The ordinate of central point；
(3) data being converted to the data under the rectangular coordinate system of the array format under polar coordinate system；
Wherein r is to enable the rectangular co-ordinate of one point M of space be from the fixed disk to the length of the linking arm the arm
(x, y), polar coordinates are (ρ, θ), then enable ρ2=x2+y2, andWherein x ≠ 0；
(4) when detecting that any lamp bar is displaced the width b of a lamp bead by angle or displacement sensor, each lamp bar is carried out
The refreshing of primary display data, refreshes angle, θ=360/ (2r/b), i.e., lamp bar is every when turning θ, and lamp bar refreshes one group of data, carries out
When refreshing, distribute data 1#LED data, 2#LED data, 3#LED data and 4#LED data, these LED respectively to four arms
Data are the LED data obtained after the gradation data for being applied directly to each RGB LED lamp bead by the chroma data of pixel,
When sending data to lamp bead, what is directly transmitted is chrominance information:
Send data to 1#LED arm:
Send data to 2#LED arm:
Send data to 3#LED arm:
Send data to 4#LED arm:
2. naked eye 3D holography double-sided display method according to claim 1, which is characterized in that the 3D holography double-sided display
The display area size of device is 2 π r2, resolution ratio m*t, the refreshing frequency of the lamp bar is 2 π r/b.
3. naked eye 3D holography double-sided display method according to claim 2, which is characterized in that the revolving speed of the motor is
360.57 revs/min, to reach 24 frames/second video image refresh rate to be shown.
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| US20050050778A1 (en) * | 2003-09-10 | 2005-03-10 | Seongukk Kim | Rotational information display device |
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| CN201666976U (en) * | 2010-03-05 | 2010-12-08 | 上海工程技术大学 | Full visual angle stereo display system based on vision obscuration grating and LED |
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