CN110275347A - A kind of display device and its driving method - Google Patents
A kind of display device and its driving method Download PDFInfo
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- CN110275347A CN110275347A CN201910628471.XA CN201910628471A CN110275347A CN 110275347 A CN110275347 A CN 110275347A CN 201910628471 A CN201910628471 A CN 201910628471A CN 110275347 A CN110275347 A CN 110275347A
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/13306—Circuit arrangements or driving methods for the control of single liquid crystal cells
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133526—Lenses, e.g. microlenses or Fresnel lenses
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1347—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells
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- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The invention discloses a kind of display device and its driving methods, and the first display panel, the first microlens array, the second display panel, the second microlens array of arrangement are stacked gradually by the light direction along optical path；First microlens array and the first display panel have the first pre-determined distance, and the first image that the first microlens array is used to show the first display panel carries out Fourier transformation；Second display panel and the first microlens array have the second pre-determined distance, and the second display panel and the second microlens array have third pre-determined distance；Second microlens array is used to carry out the spectrogram progress inverse Fourier transform of spectrogram and the second image for showing of the second display panel after Fourier transformation according to the first image, obtains target image.Compared with peep-proof display in the prior art, peep-proof angle increases, and improves the peep-proof safety and reliability of display device.
Description
Technical field
This application involves field of display technology more particularly to a kind of display device and its driving methods.
Background technique
In general, the screen of display device usually has the display effect of wide viewing angle, but in some cases, such as
Public arena handles the data of data or other secrets, and the display effect of wide viewing angle is easy to peep the data in processing by other people
Depending in turn resulting in privacy information and leaking.Therefore, the display device of the peep-proof function with greater security and reliability is ability
Field technique personnel technical problem urgently to be resolved.
Summary of the invention
The application provides a kind of display device and its driving method, higher for having the peep-proof function of display device
Safety and reliability.
Therefore, the embodiment of the invention provides a kind of display device, the display device includes: the light direction along optical path
Stack gradually the first display panel, the first microlens array, the second display panel, the second microlens array of arrangement；
First microlens array and first display panel have the first pre-determined distance, the first lenticule battle array
It arranges the first image for showing to first display panel and carries out Fourier transformation；
Second display panel and first microlens array have the second pre-determined distance, second display panel
There is third pre-determined distance with second microlens array；
Second microlens array is used to carry out the first image the spectrogram and described the after Fourier transformation
The spectrogram for the second image that two display panels are shown carries out inverse Fourier transform, obtains target image.
Optionally, in embodiments of the present invention, first pre-determined distance is the focal length of first microlens array.
Optionally, in embodiments of the present invention, second pre-determined distance is the focal length of first microlens array.
Optionally, in embodiments of the present invention, the third pre-determined distance is the focal length of second microlens array.
Optionally, in embodiments of the present invention, first display panel include the first liquid crystal display panel, described second
Display panel includes the second liquid crystal display panel；
The display device further includes backlight；The backlight is located at the incident side of first display panel.
Optionally, in embodiments of the present invention, the display device further include: the first polarizing film, the second polarizing film；
Between the backlight and first display panel, second polarizing film is located at first polarizing film
The light emission side of second microlens array.
Correspondingly, the embodiment of the invention also provides a kind of driving method of display device provided in an embodiment of the present invention,
The driving method includes:
Obtain target image to be shown；
First display panel is driven to show the first image, driving described second according to the target image to be shown
Display panel shows the second image；
It controls first microlens array and Fourier transformation is carried out to the first image；
It controls second microlens array and carries out the spectrogram and described the after Fourier transformation to the first image
After the spectrogram of two images carries out inverse Fourier transform, the target image is shown.
Optionally, in embodiments of the present invention, the target image to be shown and the first image, second image
Relationship it is as follows:
D (x, y)=IFT { FT [Cell1 (x1, y1)] .*FT [Cell2 (x2, y2)] }；
Wherein, D (x, y) represents the target image to be shown, and Cell1 (x1, y1) represents the two of the first image
Distribution array is tieed up, Cell2 (x2, y2) represents the Two dimensional Distribution array of second image, and FT [Cell1 (x1, y1)] represents institute
The Two dimensional Distribution array for stating the first image carries out the spectrogram after Fourier transformation, and FT [Cell2 (x2, y2)] represents described second
The Two dimensional Distribution array of image carries out the spectrogram after Fourier transformation, and FT represents Fourier transform function, and IFT is represented in inverse Fu
Leaf transformation function.
Optionally, in embodiments of the present invention, second microlens array is controlled to carry out in Fu the first image
After the spectrogram of spectrogram and second image after leaf transformation carries out inverse Fourier transform, the target image is shown, wrap
It includes:
It controls second microlens array and carries out the spectrogram and described the after Fourier transformation to the first image
After the spectrogram of two images successively carries out dot product and inverse Fourier transform, the target image is shown.
Optionally, in embodiments of the present invention, the display target image, comprising:
The target image is shown in plane of second microlens array away from second display panel side；
Wherein, there is the third pre-determined distance between the plane and second microlens array.
The present invention has the beneficial effect that:
Display device provided in an embodiment of the present invention and its driving method stack gradually row by the light direction along optical path
The first display panel, the first microlens array, the second display panel, the second microlens array of cloth；First microlens array with
First display panel has the first pre-determined distance, the first image that the first microlens array is used to show the first display panel into
Row Fourier transformation；Second display panel and the first microlens array have the second pre-determined distance, the second display panel and second
Microlens array has third pre-determined distance；Second microlens array is used to carry out the frequency after Fourier transformation according to the first image
The spectrogram for the second image that spectrogram and the second display panel are shown carries out inverse Fourier transform, obtains target image.With it is existing
Peep-proof display in technology is compared, and peep-proof angle increases, and improves the peep-proof safety and reliability of display device.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of display device provided in an embodiment of the present invention；
Fig. 2 a is a kind of schematic diagram of the first display panel provided in an embodiment of the present invention and the second display panel；
Fig. 2 b is another schematic diagram of the first display panel provided in an embodiment of the present invention and the second display panel；
Fig. 2 c is another schematic diagram of the first display panel provided in an embodiment of the present invention and the second display panel；
Fig. 3 is the structural schematic diagram of another display device provided in an embodiment of the present invention；
Fig. 4 is the structural schematic diagram of another display device provided in an embodiment of the present invention；
Fig. 5 is the structural schematic diagram of another display device provided in an embodiment of the present invention；
Fig. 6 is the flow chart of the driving method of display device provided in an embodiment of the present invention；
Fig. 7 a is the schematic diagram of target image to be shown provided in an embodiment of the present invention；
Fig. 7 b is the schematic diagram of the first image provided in an embodiment of the present invention；
Fig. 7 c is the schematic diagram of the second image provided in an embodiment of the present invention.
Specific embodiment
In order to make the purpose of the present invention, the technical scheme and advantages are more clear, with reference to the accompanying drawing, to the embodiment of the present invention
The display device of offer and its specific embodiment of driving method are described in detail.It should be appreciated that disclosed below
Preferred embodiment is only for the purpose of illustrating and explaining the present invention and is not intended to limit the present invention.And in the absence of conflict, this Shen
Please in embodiment and embodiment in feature can be combined with each other.It should be noted that each layer film thickness and shape in attached drawing
Shape does not reflect actual proportions, and purpose is schematically illustrate the content of present invention.And same or similar label indicates from beginning to end
Same or similar element or element with the same or similar functions.
In view of this, as shown in Figure 1, the embodiment of the invention provides a kind of display device, which may include:
The first display panel 101, the first microlens array 102, the second display surface of arrangement are stacked gradually along the light direction 105 of optical path
Plate 103, the second microlens array 104；First microlens array 102 and the first display panel 101 have the first pre-determined distance, the
The first image that one microlens array 102 is used to show the first display panel 101 carries out Fourier transformation；Second display panel
103 and first microlens array 102 there is the second pre-determined distance, the second display panel 103 has with the second microlens array 104
Third pre-determined distance；Second microlens array 104 is used to show the spectrogram and second after the first image progress Fourier transformation
Show that the spectrogram for the second image that panel 103 is shown carries out inverse Fourier transform, obtains target image.
Display device provided in an embodiment of the present invention stacks gradually the first display surface of arrangement in the light direction along optical path
Plate, the first microlens array, the second display panel and the second microlens array.The first image shown due to the first display panel
The second image shown with the second display panel does not have correlation with target image, in order to realize the display of target image, leads to
It crosses the first microlens array of control and Fourier transformation is carried out to the first image that the first display panel is shown, and it is micro- to control second
Lens array carries out the spectrogram of the second image that the spectrogram after Fourier transformation and the second display panel are shown to the first image
Inverse Fourier transform is carried out, thus target image to be shown needed for obtaining.Therefore, if only knowing the first image and second
At least one image in image can not obtain correct target image, so that display device provided by the present application has
There is peep-proof safety and reliability.
In general, peep-proof display generally uses ultra micro shutter to constitute peep-proof film, so that user is in a visual angular region
The information shown on the display page is inside watched, and can not just see the letter shown on the display page except visual angular region
Breath.However common peep-proof display visible angle is negative 30 degree to 30 degree, then being peep-proof region except ± 30 degree.The peep-proof
Region is smaller, can no longer meet actual demand.In the display device of the application, due to the first display panel pixel with
The pixel of second display panel is one-to-one, pixel and the pixel-shift angle of the second display panel in the first display panel
Spend it is smaller even without offset when, so as to make user observe correct target image in display device so that this
The display device of invention has biggish peep-proof angle, improves peep-proof safety and reliability.If user observes, first
The pixel of display panel shifts with the pixel of corresponding second display panel, so that in the angle of user's viewing,
The pixel of first display panel and the pixel of the second display panel are not one-to-one, the figures that user observes in display device
Seem and target image non-correlation.
In conjunction with shown in Fig. 2 a- Fig. 2 c, as shown in Figure 2 a, when user's Visual Display Unit, the pixel 201 of the first display panel
There is no offsets with the pixel 202 of the second display panel, and it is mesh that family, which can be used, in the display image that display device is observed
Logo image；As shown in Figure 2 b, when user display device right side observe display device when, the pixel 201 of the first display panel
Pixel 202 relative to the second display panel deviates to the right, and the display image and target image that user observes in display device are not
With correlation；As shown in Figure 2 c, when left sides display device as user in display device, the first display panel at this time
Pixel 201 deviates to the left relative to the pixel 202 of the second display panel, the display image that user observes in display device at this time with
Target image does not have correlation.Therefore, compared with existing peep-proof display, display device of the invention increases peep-proof angle
Degree, and then improve peep-proof safety and reliability.
Optionally, in display device provided in an embodiment of the present invention, as shown in figure 3, the first pre-determined distance is first micro-
The focal length f1 of lens array, the second pre-determined distance are the focal length f1 of the first microlens array, and third pre-determined distance is described second
The focal length f2 of microlens array.
In the specific implementation, in embodiments of the present invention, Fourier transformation and inverse Fu are carried out to image in order to realize
In leaf transformation as shown in Fig. 2, constituting 4f optical system using the first lenticule battle array 102 and the second microlens array 104 want quasi-
The target image obtained by 4f optical system progress Fourier transformation and inverse Fourier transform is really obtained, is needed the first display
The second display panel 103 is arranged in optical spectrum domain Fu of 4f in the optical spatial domain front focal length plane of 4f for the setting of panel 101
In leaf transformation plane.Wherein, empty in the 4f optical system that the first microlens array 102 and the second microlens array 104 form
Between distance f1 between domain front focal length plane 1021 and the first microarray incident side, and spectrum domain Fourier transform plane 1041 and
Also distance f1, and the spacing of spectrum domain Fourier transform plane 1041 and the second microarray incidence surface between one microarray light emission side
From f2.F1 is the focal length of the first microlens array, and f2 is the focal length of the second microlens array.Therefore, by the first display panel 101
It is arranged at the spatial domain front focal plane 1021 of 4f optical system, i.e. the first pre-determined distance is the coke of first microlens array
Away from.And the second display panel 103 is arranged at the spectrum domain Fourier transform plane 1041 of 4f optical system, i.e., described
Two pre-determined distances are the focal length of first microlens array, and the third pre-determined distance is the coke of second microlens array
Away from.Target image can be obtained at the position of plane 106 in this way.Wherein f1 can be equal with f2, can also be unequal, can be with
F1 and f2 are configured according to actual needs, the invention is not limited in this regard.
In the specific implementation, in an embodiment of the present invention, as shown in figure 4, the first display panel 101 includes the first liquid crystal
Display panel, the second display panel 103 include the second liquid crystal display panel, which further includes backlight 107, backlight
107 are located at the incident side of the first display panel 101.
In the specific implementation, in an embodiment of the present invention, as shown in figure 5, the display device further includes the first polarizing film
108, the second polarizing film 109, the first polarizing film 108 are located between backlight 107 and the first display panel 101, the second polarizing film
109 are located at the light emission side of the second microlens array 104.
In the specific implementation, display device provided in an embodiment of the present invention can be with are as follows: mobile phone, tablet computer, television set, aobvious
Show any products or components having a display function such as device, laptop, Digital Frame, navigator.For the display device
Other essential component parts be it will be apparent to an ordinarily skilled person in the art that having, this will not be repeated here,
Also it should not be taken as limiting the invention.
Based on the same inventive concept, the embodiment of the invention also provides a kind of above-mentioned display dresses provided in an embodiment of the present invention
The driving method set, as shown in fig. 6, may include step 601- step 604 when specific implementation:
Step 601, target image to be shown is obtained；
Step 602, the first display panel is driven to show the first image, the second display of driving according to target image to be shown
The second image of Display panel；
Step 603, the first microlens array of control carries out Fourier transformation to the first image；
Step 604, the second microlens array of control carries out the spectrogram and the second figure after Fourier transformation to the first image
After the spectrogram of picture carries out inverse Fourier transform, displaying target image.
The driving method of above-mentioned display device provided in an embodiment of the present invention, this method is by obtaining target figure to be shown
Picture drives the first display panel to show that the first image, the second display panel of driving show second according to target image to be shown
Image, the first microlens array of control carry out Fourier transformation to the first image；The second microlens array is controlled to the first image
After the spectrogram of spectrogram and the second image after carrying out Fourier transformation carries out inverse Fourier transform, displaying target image.
Since the first image and the second image do not have correlation by transformed image and target image, basis is needed
Target image to be shown obtains the second image that the first image that the first display panel is shown and the second display panel are shown, ability
Correct target image is obtained, if only knowing that an image in the first image or the second image is can not to obtain correctly
Target image, the driving method enhance the safety that display device shows information；First display panel and the second display simultaneously
The display pixel of panel be it is one-to-one, it is only not opposite with the display pixel of the second display panel in the first display panel
When offset, user is observed that target image；If the angle of user's observation is greater than pixel-shift angle, the first display panel
Opposite offset occurs with the display pixel of the second display panel, the image that user observes is with target image without linear dependence
Error image, compared with existing peep-proof display, the driving method can drive display device have biggish peep-proof angle
Degree, and then improve the peep-proof safety of display information.
In the specific implementation, in embodiments of the present invention, after obtaining target image to be shown, need to further determine that
The second image that the first image and second panel that one display panel is shown are shown.Wherein, the first image, which can be, is randomly provided
Any gray level image.For example, can be that several gray level images have been stored in advance, one have been randomly selected in these gray level images
Width is as the first image.It is of course also possible to make predetermined width gray level image, it is not limited thereto.Implement in the present invention
In example, the second image is also possible to gray level image.
In the specific implementation, in embodiments of the present invention, determine that the first display panel is aobvious according to target image to be shown
After showing that the first image and the second display panel show the second image, the first microlens array of control carries out Fourier to the first image
Transformation, control the second microlens array to the first image carry out Fourier transformation after spectrogram and the second image spectrogram into
The spectrogram data of row dot product, i.e., spectrogram data and the second image after the first image to be carried out to Fourier transformation carries out data
Fused image data is carried out inverse Fourier transform by fusion, the second microlens array of control, and transformed image is target
Image, as shown in figure 4, the displaying target image on the display plane 106 of display device.
In the specific implementation, in embodiments of the present invention, when displaying target image, as shown in figure 5, in 4f optical system
In, accurately to show that the second microlens array carries out the image after inverse Fourier transform, the plane of displaying target image should
The side that second microlens array deviates from the second display panel is set, and distance is third pre-determined distance, that is, will display
It, can displaying target in this way at the plan-position at the f2 of plane setting the second microlens array of distance light emission side of image
Image.
Since the display pixel of the first display panel and the second display panel is correspondingly, only to show first
When showing that the display pixel of panel and the second display panel does not deviate relatively, that is, user faces the aobvious of displaying target image
Show plane 106, it can be observed that showing correct target image.
The first image in the specific implementation, in embodiments of the present invention, showing in the first panel of above-mentioned display device,
The second image and target image to be shown that second panel is shown meet following relationship:
D (x, y)=IFT { FT [Cell1 (x1, y1)] .*FT [Cell2 (x2, y2)] }；
Wherein, D (x, y) represents the target image to be shown, and Cell1 (x1, y1) represents the two of the first image
Distribution array is tieed up, Cell2 (x2, y2) represents the Two dimensional Distribution array of second image, and FT [Cell1 (x1, y1)] represents institute
The Two dimensional Distribution array for stating the first image carries out the spectrogram after Fourier transformation, and FT [Cell2 (x2, y2)] represents described second
The Two dimensional Distribution array of image carries out the spectrogram after Fourier transformation, and FT represents Fourier transform function, and IFT is represented in inverse Fu
Leaf transformation function.
Below with reference to content shown in Fig. 7 a to Fig. 7 c, driving method provided by the present application is carried out by specific embodiment
Explanation.Wherein, Fig. 7 a is target image to be shown, and Fig. 7 b is the first image that the first display panel is shown, Fig. 7 c is second
The second image that display panel is shown.
Driving method provided by the present application may include steps of:
(1) target image 7a to be shown is obtained；
(2) the first display panel is driven to show the first image 7b, the second display of driving according to target image 7a to be shown
The second image of Display panel 7c, wherein the first image 7b can be random gray level image, can be aobvious according to the first display panel
The relational expression of the first image, the second image that the second display panel is shown and target image to be shown that show:
D (x, y)=IFT { FT [Cell1 (x1, y1)] .*FT [Cell2 (x2, y2)] },
It can determine the second image 7c that the second display panel is shown.
(3) the first microlens array of control carries out Fourier transformation to the first image 7b；
(4) the second microlens array of control carries out the spectrogram and the second image 7c after Fourier transformation to the first image 7b
Spectrogram carry out inverse Fourier transform after, displaying target image 7a.
Display device provided in an embodiment of the present invention and its driving method stack gradually row by the light direction along optical path
The first display panel, the first microlens array, the second display panel, the second microlens array of cloth；First microlens array with
First display panel has the first pre-determined distance, the first image that the first microlens array is used to show the first display panel into
Row Fourier transformation；Second display panel and the first microlens array have the second pre-determined distance, the second display panel and second
Microlens array has third pre-determined distance；Second microlens array is used to carry out the frequency after Fourier transformation according to the first image
The spectrogram for the second image that spectrogram and the second display panel are shown carries out inverse Fourier transform, obtains target image.With it is existing
Peep-proof display in technology is compared, and peep-proof angle increases, and improves the peep-proof safety and reliability of display device.
Obviously, those skilled in the art can carry out various modification and variations without departing from the essence of the application to the application
Mind and range.In this way, if these modifications and variations of the application belong to the range of the claim of this application and its equivalent technologies
Within, then the application is also intended to include these modifications and variations.
Claims (10)
1. a kind of display device, which is characterized in that the display device includes: to stack gradually arrangement along the light direction of optical path
First display panel, the first microlens array, the second display panel, the second microlens array；
First microlens array and first display panel have the first pre-determined distance, and first microlens array is used
Fourier transformation is carried out in the first image shown to first display panel；
Second display panel and first microlens array have the second pre-determined distance, second display panel and institute
The second microlens array is stated with third pre-determined distance；
Second microlens array is used to show the spectrogram after the first image progress Fourier transformation with described second
Show that the spectrogram of the second image of Display panel carries out inverse Fourier transform, obtains target image.
2. display device according to claim 1, which is characterized in that first pre-determined distance is first lenticule
The focal length of array.
3. display device according to claim 1, which is characterized in that second pre-determined distance is first lenticule
The focal length of array.
4. display device according to claim 1, which is characterized in that the third pre-determined distance is second lenticule
The focal length of array.
5. display device according to claim 1, which is characterized in that first display panel includes the first liquid crystal display
Panel, second display panel include the second liquid crystal display panel；
The display device further includes backlight；The backlight is located at the incident side of first display panel.
6. display device according to claim 5, which is characterized in that the display device further include: the first polarizing film,
Two polarizing films；
Between the backlight and first display panel, second polarizing film is located at described first polarizing film
The light emission side of second microlens array.
7. a kind of driving method of display device as claimed in any one of claims 1 to 6, which is characterized in that the driving method
Include:
Obtain target image to be shown；
It drives first display panel to show the first image according to the target image to be shown, drives second display
The second image of Display panel；
It controls first microlens array and Fourier transformation is carried out to the first image；
It controls second microlens array and carries out spectrogram and second figure after Fourier transformation to the first image
After the spectrogram of picture carries out inverse Fourier transform, the target image is shown.
8. driving method according to claim 7, which is characterized in that the target image to be shown and first figure
Picture, the relationship of second image are as follows:
D (x, y)=IFT { FT [Cell1 (x1, y1)] .*FT [Cell2 (x2, y2)] }；
Wherein, D (x, y) represents the target image to be shown, and Cell1 (x1, y1) represents the two dimension point of the first image
Cloth array, Cell2 (x2, y2) represent the Two dimensional Distribution array of second image, and FT [Cell1 (x1, y1)] represents described
The Two dimensional Distribution array of one image carries out the spectrogram after Fourier transformation, and FT [Cell2 (x2, y2)] represents second image
Two dimensional Distribution array carry out the spectrogram after Fourier transformation, FT represents Fourier transform function, and IFT represents inverse Fourier and becomes
Exchange the letters number.
9. driving method according to claim 7, which is characterized in that control second microlens array is to described first
After the spectrogram of spectrogram and second image after image progress Fourier transformation carries out inverse Fourier transform, described in display
Target image, comprising:
It controls second microlens array and carries out spectrogram and second figure after Fourier transformation to the first image
After the spectrogram of picture successively carries out dot product and inverse Fourier transform, the target image is shown.
10. according to the described in any item driving methods of claim 7-9, which is characterized in that the display target image, packet
It includes:
The target image is shown in plane of second microlens array away from second display panel side；Its
In, there is the third pre-determined distance between the plane and second microlens array.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111190296A (en) * | 2020-02-25 | 2020-05-22 | 深圳市隆利科技股份有限公司 | Peep-proof method for display |
| CN111240077A (en) * | 2020-02-25 | 2020-06-05 | 深圳市隆利科技股份有限公司 | Peep-proof display method |
| CN111312073A (en) * | 2020-02-25 | 2020-06-19 | 深圳市隆利科技股份有限公司 | Peep-proof display screen and electronic equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103258315A (en) * | 2013-05-24 | 2013-08-21 | 浙江农林大学 | Double-image encryption method based on tangential fractional Fourier transformation |
| CN104134184A (en) * | 2014-07-21 | 2014-11-05 | 浙江农林大学 | Image encryption method based on iteration phase cutting fractional Fourier transform |
| CN105954991A (en) * | 2016-05-26 | 2016-09-21 | 重庆大学 | Optical encryption method based on holographic calculation |
-
2019
- 2019-07-12 CN CN201910628471.XA patent/CN110275347A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103258315A (en) * | 2013-05-24 | 2013-08-21 | 浙江农林大学 | Double-image encryption method based on tangential fractional Fourier transformation |
| CN104134184A (en) * | 2014-07-21 | 2014-11-05 | 浙江农林大学 | Image encryption method based on iteration phase cutting fractional Fourier transform |
| CN105954991A (en) * | 2016-05-26 | 2016-09-21 | 重庆大学 | Optical encryption method based on holographic calculation |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111190296A (en) * | 2020-02-25 | 2020-05-22 | 深圳市隆利科技股份有限公司 | Peep-proof method for display |
| CN111240077A (en) * | 2020-02-25 | 2020-06-05 | 深圳市隆利科技股份有限公司 | Peep-proof display method |
| CN111312073A (en) * | 2020-02-25 | 2020-06-19 | 深圳市隆利科技股份有限公司 | Peep-proof display screen and electronic equipment |
| CN111312073B (en) * | 2020-02-25 | 2022-08-12 | 深圳市隆利科技股份有限公司 | Peep-proof display screen and electronic equipment |
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