CN106324951A - Display and printing method using projection operation and back projection method - Google Patents
Display and printing method using projection operation and back projection method Download PDFInfo
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- CN106324951A CN106324951A CN201510371689.3A CN201510371689A CN106324951A CN 106324951 A CN106324951 A CN 106324951A CN 201510371689 A CN201510371689 A CN 201510371689A CN 106324951 A CN106324951 A CN 106324951A
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- display
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Abstract
The invention relates to a display and printing method using projection operation and a back projection method and belongs to the flat panel display field, 3D display technical field and printing technical field. According to an existing flat panel display technology, line field wiring is adopted, difficulty in making components on a panel is high; complex optical components are required by an projection technology to achieve thinning tendency; a slice stacking method for 3D display requires layer-by-layer superposition of flat panel display units. According to the display and printing method of the invention, line field wiring is not required, components are not required to be made on a panel; projection thickness and complex optical paths do not exist; when a flat panel display unit is used for 3D display, the flat panel display unit can be adopted as a continuum of many flat panel display units; computed tomography (CT) can complete projection data acquisition and tomographic image reconstruction; and optical quantity is converted into an image represented by digits. The method of the invention is based on the projection operation and the back projection method of the computed tomography (CT) and is applied to the display field and printing filed. The image represented by digitals can be converted into optical quantity, so that a visual image can be realized.
Description
One, technical field
The invention belongs to non-active flat display field, active illuminating flat display field, 3D field of stereoscopic display, printing
Technical field, and the field of the technology in the above-mentioned field of any utilization.
Two, background technology
There are liquid crystal display (LCD) technology, Electronic Paper (ePaper) technology, micro display projection (MDP) in non-active flat display field
Technology.
Active illuminating flat display field has diode displaying/organic light-emitting diode display (LED/OLED) technology, and electronics is swept
Retouching image reproducer (CRT) technology, plasma shows (PDP) technology, and FED/field ion shows (FED/FID) technology, very
Empty fluorescence display (VFD) technology.
3D field of stereoscopic display has holographic technique, section to pile up Display Technique, utilize numerous technology of visual disparity.Wherein, entirely
Breath technology proposes the panel display board higher than visible light optical resolution.Section is piled up Display Technique and utilizes the crowd of visual disparity
Many technology the most directly use panel display board.
In above-mentioned field, there is non-planar display surfaces plate.Such as spherical panel, cylindricality panel.They still fall within flat pannel display
Field or 3D field of stereoscopic display.
Printing technique is counted as suitable with Display Technique.Difference is that print result is recorded in paper or other base material for a long time, and shows
Result can rewrite at short notice, and it is presented in panel.Method of printing includes material to transfer to paper or other base material, also wraps
Include and directly change paper or the color of other base material.
Three, summary of the invention
1, technology difference
In flat display field, through realizing the addressing of pixel cell frequently with the wiring of row field.This makes the front of panel to adopt
With transparent conductive material.The high request of image quality is too increased and manufactures the wiring of capable field and the difficulty of other element.In flat pannel display
Field, requires the most harsh to the consistency of performance of pixel cell.The present invention connects up without row-field scanning, divides picture the most in the panel
Element unit, has avoided the deficiencies in the prior art.
In flat display field, throw and back projection technique before comprising.These technology are concerned about projector distance or claim projection thickness.For reality
Existing slimming, it is accordingly required in particular to complicated light path part.The present invention, without projection thickness, is not required to the light path part of complexity, has avoided existing
There is the deficiency of technology.
In 3D field of stereoscopic display, comprise the way using section to pile up.This needs flat panel display unit to be layering.The present invention
It is not required to splitter plates display unit, can be used as the continuum of many flat panel display units, avoided the deficiencies in the prior art.
Printing technique is frequently utilized that the way of mechanical scanning or photoscanning manufactures visual picture or manufactures invisible sub-image.The present invention is not
Need scanning, be more quickly completed visual picture or invisible sub-image.
What computer tomography (CT) technology completed is projection data acquisitions and tomographic image reconstructing.Optical quantities is changed into number
The image that word table shows.The present invention uses for reference " project " and the back projection method of computer tomography (CT) technology, aobvious
Show that field or printing field use.The image that numeral is represented changes into optical quantities.I.e. realize visual image.
2, explanation of nouns
Light: various light, ray or material stream are all replaced with " light ".Especially include electromagnetic wave, infrared light, visible ray,
Ultraviolet light, laser, X-ray, lonizing radiation, cosmic ray, electron beam, neutron beam, proton beam, helion bundle.
Fluorescent material: launch the material of light because absorbing light.The light launched is different from the light of absorption.Including kind
Difference or the difference of parameter.Ultraviolet light as high in frequency irradiates fluorescent material and sends the visible ray that frequency is low.And for example beam bombardment
Fluorescent material sends visible ray.Principle of luminosity includes fluorescence and phosphorescence.
Astigmatism material: the direction changing incident ray makes again the material of beam projecting.Reflected version includes diffuse-reflectance and direct reflection.
Active illuminating material: send the material of visible ray because of the function of current or any physical quantity effect.
Passive astigmatism material: change the material of astigmatism character because of the function of current or any physical quantity effect.In other words,
Because of the function of current or any physical quantity effect, and under stable incident illumination, change the material of emergent light.
Projection part: projection part refers to project visual picture or project the parts of invisible sub-image.Especially include projector.
Light beam sweep unit: light beam sweep unit refers to a kind of parts, it launches light beam with a lot of different directions and position.Especially wrap
Include laser scanning component, electron beam scanning parts.
Calculating unit: calculating unit i.e. has the parts of digital operation function.Especially include computer, single-chip microcomputer, chip and electricity
Road.
Imaging panel: in carrying visual picture or the panel of invisible sub-image.
The linearly or nonlinearly characteristic of imaging panel: optical, electrical stream or other physical quantity act on imaging panel, it is thus achieved that visual picture
Or invisible sub-image.Sub-image obtains visual picture by follow-up development step.In the middle of this, the brightness of any point and control on image
The physical quantity of brightness processed is linear or non-linear relation.
3, technical method
Needed for the present invention, vitals includes imaging panel, projection part or light beam sweep unit, calculating unit, runs on calculating
The software of parts.
The image that calculating unit logarithm word table shows does project.As a comparison, relatively hold with computer tomography (CT) technology
The easily statement present invention utilization to " project ":
Project is i.e. CT data acquisition in computer tomography (CT) technology.A branch of narrow X-ray penetrates group
Knit, decay in the tissue, be finally received by a detector and obtain the projection value of this beam of x-rays.When x-ray source is true at one
When location is put, collect the most multidirectional x-ray projection value, form the scanning of a sector region.When x-ray source and detector
Together when tissue rotates, collect a lot of direction sector scanning data, generally carry out a complete circumference.The knot of all collections
Fruit is exactly project result.
Said process has only described the collection of one layer of tomography.The most just the projection of a layer " tomography " it is only concerned in flat display field
Computing, operating region is fan-shaped.Can once carry out the project of multilamellar in 3D field of stereoscopic display, operating region is taper
Or cylindricality.
In the present invention, project is carried out in calculating unit.The image that a branch of " dummy light " permeability number word table shows, wearing
The brightness value (color value that is three or the brightness value of more than three) crossing part is integrated, and calculates this bundle " light beam "
Projection value.If one " virtual light source " is determining position, collect the projection value of the most multidirectional " dummy light ".For calculating
The facility that method provides, it is possible to form the data of a sector region, it is also possible to formed a conical region or column regions (under
Literary composition with sector region instead of) data.Place " virtual light source " in a lot of positions, collect the data of a lot of directions sector region,
Usually extend over all-round.Sector region comprises the image of numeral expression.The data of these sector regions are exactly project result.
In addition to calculating unit, other parts complete back projection's work.With computer tomography (CT) technology as a comparison, relatively
The easily statement present invention utilization to " back projection method ":
Back projection method belongs to the one of tomographic image reconstructing process in computer tomography (CT) technology.It is divided into again directly
Back projection method and filtered back-projection method.The projection value that direct back projection method records all directions is directly opposite and projects to table
Reach in the matrix of image.Back projection's result superposition of all directions is obtained the image rebuild.Filtered back-projection method makes up directly
The deficiency of back projection method.Direct back projection method is readily obtained fuzzy edge, and filtered back-projection method is readily obtained clearly
Edge.The projection value that filtered back-projection method records all directions computing after filtering, then reverse for the result of all directions
Project in the matrix of expression image.Back projection's result superposition of all directions is obtained the image rebuild.
In the present invention, what back projection method completed is exactly imaging process.First, the projection of all directions project obtained
Value, changes into the light beam of correspondence, or electric current, or other physical quantity.Then, for light beam, it is projected directly at imaging panel.
After the beam combination of all directions, obtain specific light distribution at imaging panel.The figure that these distributions represent according to numeral exactly
As drawing, therefore will be immediately seen visual picture or obtain invisible sub-image.For electric current, imaging panel is arranged actively
Luminescent substance or passive astigmatism material, including the material producing sub-image.These materials have electric conductivity, arrange that they form circuit.
Digitally addressed parts are utilized to drive imaging panel.The current energy of each bar wiring, after converting, obtains spy at imaging panel
Fixed Energy distribution.The image that these distributions represent according to numeral draws, therefore will be immediately seen visual image or obtain
Invisible sub-image.For other any physical quantity, copy light beam scheme or current scheme, obtain a certain physics at imaging panel
The specific distribution of character.The image that these distributions represent according to numeral draws, therefore will be immediately seen visual image or obtain
To invisible sub-image.
Project result is directly used in display or prints by direct back projection method exactly.Filtered back-projection method is by project
Result computing after filtering, is used further to display or prints.Light beam and other reason in order to be suitable for having Decay Rate cause brightness
Skewness, first computes weighted to result, is used further to display or prints.
Four, specific implementation method
1, scheme two example
(1) scheme of light beam is used
Luminescence unit: launch light beam selectively to certain space angle.The light beam in each direction can independently be modulated and not affect other
The light beam in direction.
Array of light emitting cells: the array of a lot of luminescence unit compositions.It is typically arranged to rectangle frame or other any shapes, the limit of frame
Luminescence unit is had not have in frame in boundary.Can also arbitrary arrangement.
The scheme using light beam utilizes array of light emitting cells.Light is made to inject imaging panel.These light beams are through ovennodulation.Modulation root
Carry out according to project result.Project result can computing after filtering, the one of which computing of ranking operation or two kinds of fortune
Calculate, it is also possible to without filtering operation and ranking operation.
(2) scheme of electric current is used
Connect up on substrate with electroluminescent material or electrochromic material.Typically, wiring is in units of straightway.The end of line segment
Point is always on border, panel effective coverage.On border, a lot of line segments of same association, each line segment extends to different sides
To.Utilize addressing part can control every line segment.
The scheme using electric current drives electroluminescent material or electrochromic material by electric current.These electric currents are through ovennodulation.Modulation
Carry out according to project result.
Project result can computing after filtering, the one of which computing of ranking operation or two kinds of computings, it is also possible to without
Filtering operation and ranking operation.
2, an example is implemented
Using clouded glass or any diffuse-reflectance curtain as imaging panel.
Using the beam light source in rotation as luminescence unit.It is characterized by: light beam shallow decline injects panel, forms visible straight line
Bar.Beam light source in rotation produces the round speckle expanded to far-end by center on imaging panel.
Array of light emitting cells is arranged with rectangular frame shape.
The light of each luminescence unit all directions is by computer control.According to the data being the sector region that computing draws.All
The cooperation of light unit is with creating visual image.The image achieving numeral expression changes into optical quantities.
Claims (10)
1. display or a method for printing, use project and back projection method.
Display the most according to claim 1 or Method of printing, do filtering operation to project result.
Display the most according to claim 1 or Method of printing, including or do not include the filtering operation described in claim 2, to fortune
Calculate result and do ranking operation.
4., according to any one computing described in claim 1, claim 2, claim 3, modulate light beam with operation result,
Or modulation electric current, or modulate other physical quantity.
Light beam the most according to claim 4, projects imaging panel light beam.
Electric current the most according to claim 4 or other physical quantity, be applied to imaging panel electric current or corresponding physical quantity.
Display the most according to claim 1 or Method of printing, use projection part or use light beam sweep unit.
Display the most according to claim 1 or Method of printing, use addressing part.
Display the most according to claim 1 or Method of printing, carry out monochrome or the display of colour or printing.
Display the most according to claim 1 or Method of printing, utilize the linear characteristic of imaging panel or nonlinear characteristic to realize
Low-light level or maximum brightness.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510371689.3A CN106324951A (en) | 2015-07-01 | 2015-07-01 | Display and printing method using projection operation and back projection method |
| US15/570,749 US20180153205A1 (en) | 2015-04-28 | 2016-04-23 | Imaging and forming method using projection operation and back projection method |
| CN201680024086.9A CN108604047B (en) | 2015-04-28 | 2016-04-23 | Imaging and forming method adopting projection operation and back projection method |
| EP16785905.7A EP3333629A4 (en) | 2015-04-28 | 2016-04-23 | Imaging and forming method using projection operation and back projection method |
| PCT/CN2016/080097 WO2016173474A1 (en) | 2015-04-28 | 2016-04-23 | Imaging and forming method using projection operation and back projection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510371689.3A CN106324951A (en) | 2015-07-01 | 2015-07-01 | Display and printing method using projection operation and back projection method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106324951A true CN106324951A (en) | 2017-01-11 |
Family
ID=57722239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510371689.3A Pending CN106324951A (en) | 2015-04-28 | 2015-07-01 | Display and printing method using projection operation and back projection method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106324951A (en) |
-
2015
- 2015-07-01 CN CN201510371689.3A patent/CN106324951A/en active Pending
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170111 |
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| WD01 | Invention patent application deemed withdrawn after publication |