CN104504350A - Display device, watching device, display method and watching method - Google Patents
Display device, watching device, display method and watching method Download PDFInfo
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- CN104504350A CN104504350A CN201510002323.9A CN201510002323A CN104504350A CN 104504350 A CN104504350 A CN 104504350A CN 201510002323 A CN201510002323 A CN 201510002323A CN 104504350 A CN104504350 A CN 104504350A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/70—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
- G06F21/82—Protecting input, output or interconnection devices
- G06F21/84—Protecting input, output or interconnection devices output devices, e.g. displays or monitors
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Abstract
The invention relates to the technical field of security and secrecy display and discloses a display device, a watching device, a display method and a watching method. The display device comprises an encryption unit and an encryption display unit connected with the same, the encryption unit disperses the image of an original complete frame to be displayed to multiple frames, each frame comprises gray information corresponding to one part of the image in the original complete frame, and the encryption display unit displays the multi-frame gray information. According to the display device, through dispersing the image of the original complete frame to be displayed to multiple frames to enable each frame to comprise one part of information of the original complete frame, the display device can display the multi-frame information which cannot be directly read by people, and accordingly the peeping resistance is realized, and the information security is improved.
Description
Technical field
The present invention relates to safe and secret display technique field, particularly a kind of display device, viewing apparatus, display packing and viewing method.
Background technology
Existing display device, as: mobile phone and PC etc., directly show original image when showing, if such other people observe unencrypted display information, will observe directly the information needing protection, cause security information to be revealed, Information Security is not high.
Summary of the invention
(1) technical matters that will solve
The technical problem to be solved in the present invention is: the information encryption display that how will show, making can not by people's direct reading.
(2) technical scheme
For solving the problems of the technologies described above, the invention provides a kind of display device, comprise: ciphering unit and connected encryption display unit, the image of the former complete frame that described ciphering unit will show is discrete in multiframe, each frame comprises half-tone information corresponding to a part of image in a former complete frame, encryption display unit display multiframe half-tone information.
Wherein, described ciphering unit comprises:
Gradation conversion unit, for converting the image of a described former complete frame to half-tone information, and identifies the position of the half-tone information being positioned at this pixel with the coordinate of pixel in image coordinate;
Gray scale inverse unit, for image being divided into by the double-colored grid checker board pattern preset the region of grid size, half-tone information coordinate being fallen into the first color grid is constant, falls into the half-tone information inverse of the second color grid;
Discrete point of frame unit, for according to the frame number that presets, is dissipated into multiframe by half-tone information corresponding for the image of a described former complete frame then at random, does not occur that the pixel background colour of half-tone information is filled in multiframe;
Mark adding device, for adding telltale mark to the described half-tone information in multiframe.
Wherein, described ciphering unit also comprises: noise adding device, adds noise for the pixel not showing described half-tone information in described multiframe.
Present invention also offers a kind of viewing apparatus for watching above-mentioned display device picture, comprise: decryption unit and be connected with it and decipher display unit, described decryption unit record multiframe half-tone information, described multiframe half-tone information is superposed in a new frame image being reduced to a described former complete frame, the image of the described former complete frame of described deciphering display unit display.
Wherein, described decryption unit comprises:
Record cell, for recording the multiframe half-tone information of described encryption display unit display;
Label lookup unit, for searching the telltale mark in multiframe in each frame, to determine the coordinate of half-tone information in each frame in the multiframe that is separated;
Reduction unit, for image being divided into by described double-colored grid checker board pattern the region of grid size, half-tone information coordinate being fallen into the first color grid remains unchanged, fall into the half-tone information inverse of the second color grid, then the gray-scale value of half-tone informations all in the multiframe of separation identical for coordinate is added, restores the image of a described former complete frame.
Present invention also offers a kind of display packing, comprising:
The image of a former complete frame that will show is discrete in multiframe, and each frame comprises half-tone information corresponding to a part of image in a former complete frame;
Display multiframe half-tone information.
Wherein, the image of a described former complete frame that will show is discrete in multiframe, and the step that each frame comprises half-tone information corresponding to a part of image in a former complete frame specifically comprises:
Convert the image of a described former complete frame to half-tone information, and identify the position of the half-tone information being positioned at this pixel with the coordinate of pixel in image coordinate;
By the double-colored grid checker board pattern preset, image is divided into the region of grid size, half-tone information coordinate being fallen into the first color grid is constant, falls into the half-tone information inverse of the second color grid;
According to the frame number preset, then random half-tone information corresponding for the image of a described former complete frame is dissipated into multiframe, in multiframe, does not occur that the pixel background colour of half-tone information is filled;
Telltale mark is added to the described half-tone information in multiframe.
Wherein, the image of a former complete frame that will show discrete in multiframe after also comprise: do not show in described multiframe described half-tone information pixel add noise.
Present invention also offers a kind of viewing method for watching above-mentioned display method display frame, comprising:
Record multiframe half-tone information, superposes the image being reduced to a described former complete frame in a new frame by described multiframe half-tone information;
Show the image of a described former complete frame.
Wherein, described record multiframe half-tone information, the step described multiframe half-tone information being superposed in a new frame image being reduced to a described former complete frame specifically comprises:
Record the multiframe half-tone information of described encryption display unit display;
Search the telltale mark in each frame in multiframe, to determine the coordinate of half-tone information in each frame in the multiframe that is separated;
By described double-colored grid checker board pattern, image is divided into the region of grid size, half-tone information coordinate being fallen into the first color grid is constant, fall into the half-tone information inverse of the second color grid, then the gray-scale value of half-tone informations all in the multiframe of separation identical for coordinate is added, restores the image of a described former complete frame.
(3) beneficial effect
The present invention is discrete in multiframe by the information of a former complete frame that will show, and each frame comprises a part of information in a former complete frame, thus display can not by the multiframe information of people's direct reading, thus achieve anti-peeping, improves the effect of information security.
Accompanying drawing explanation
Fig. 1 is a kind of display device structure schematic diagram of the embodiment of the present invention;
Fig. 2 is the another kind of display device structure schematic diagram of the embodiment of the present invention;
Fig. 3 be original image and discrete after image schematic diagram;
Fig. 4 is the structural representation of a kind of viewing apparatus of the embodiment of the present invention;
Fig. 5 is a kind of display packing process flow diagram of the embodiment of the present invention;
Fig. 6 is the particular flow sheet of step S100 in the display packing of the embodiment of the present invention;
Fig. 7 is a kind of viewing method process flow diagram of the embodiment of the present invention;
Fig. 8 is the particular flow sheet of step S300 in the viewing method of the embodiment of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples for illustration of the present invention, but are not used for limiting the scope of the invention.
As shown in Figure 1, the invention provides a kind of display device, comprising: ciphering unit 100 and connected encryption display unit 200.The image of the former complete frame that ciphering unit 100 will show is discrete in multiframe, and each frame comprises half-tone information corresponding to a part of image in a former complete frame, and encryption display unit 200 shows multiframe half-tone information, shows multiple gray scale frame during display frame by frame.Wherein encrypt the display screen part that display unit 200 is display device, ciphering unit 100 is driving circuit section.
The present invention is discrete in multiframe by the information of a former complete frame that will show, and each frame comprises a part of information in a former complete frame, thus display can not by the multiframe information of people's direct reading, thus achieve anti-peeping, improves the effect of information security.
In the present embodiment, ciphering unit 200 comprises:
Gradation conversion unit 101, for converting the image of a described former complete frame to half-tone information, and when showing with image, the coordinate of place pixel comes the position of identification image.
Gray scale inverse unit 102, for image being divided into by the double-colored grid checker board pattern preset the region of grid size, half-tone information coordinate being fallen into the first color grid is constant, falls into the half-tone information inverse of the second color grid.Double-colored grid checker board pattern is preferably the black and white checker board pattern of chess.
Discrete point of frame unit 103, for according to the frame number that presets, is dissipated into multiframe by half-tone information corresponding for the image of a described former complete frame then at random.Can be unit by the grid size in double-colored grid checker board pattern, discrete to multiple frame after image is divided.Do not occur in multiframe that the pixel background colour of half-tone information is filled.Such as white is background colour.
Mark adding device 104, for adding telltale mark to the described half-tone information in multiframe, telltale mark is for helping the half-tone information in each frame of viewing apparatus identification.Such as in the gray level image of each frame, arranging indicia patterns, can be that unit does a mark by the grid size in double-colored grid checker board pattern.
Further, for increasing anti-peeping intensity, as shown in Figure 2, ciphering unit 100 also comprises: noise adding device 105, adds noise for the pixel not showing described half-tone information in multiframe.
As shown in Figure 3, original image " B " is formed after above-mentioned gradation conversion unit 101 and the process of gray scale inverse unit 102 (original image " B " below) and adopt the image after black and white chessboard mode treatment, carry out framing by discrete point of frame unit 103 again, as in solid box in Fig. 3 for the image after black and white chessboard mode treatment is separated into the image of 4 gray scale frames (frame).Play frame by frame by these 4 gray scale frames, onlooker just cannot peep the original image that will show.
In order to reduce and watch above-mentioned enciphered message, present invention also offers a kind of viewing apparatus for watching above-mentioned display device picture, as shown in Figure 3, comprising: decryption unit 300 and be connected with it and decipher display unit 400.Decryption unit 300 records multiframe half-tone information, described multiframe half-tone information is superposed in a new frame image being reduced to a described former complete frame, and described deciphering display unit 400 shows the image of a described former complete frame.Viewing apparatus can be a kind of mobile phone with camera function or glasses.
In the present embodiment, decryption unit 300 is that the inverse process of above-mentioned ciphering unit 200 comprises:
Record cell 301, for recording the multiframe half-tone information of described encryption display unit display.
Label lookup unit 302, for searching the telltale mark in multiframe in each frame, to determine the coordinate of half-tone information in each frame in the multiframe that is separated.
Reduction unit 303, by described double-colored grid checker board pattern, image is divided into the region of grid size, half-tone information coordinate being fallen into the first color grid is constant, fall into the half-tone information inverse of the second color grid, then the gray-scale value of half-tone informations all in the multiframe of separation identical for coordinate is added, restores the image of a described former complete frame.As in dotted line frame in Fig. 3 for reduction unit 303 to the image carrying out 4 isolated frame after gray scale inverse in each frame.
Present invention also offers a kind of display packing, as shown in Figure 4, comprising:
Step S100, the image of a former complete frame that will show is discrete in multiframe, and each frame comprises half-tone information corresponding to a part of image in a former complete frame.
Step S200, display multiframe half-tone information.
As shown in Figure 5, step S100 specifically comprises:
Step S101, convert the image of a described former complete frame to half-tone information, and when showing with image, the coordinate of place pixel comes the position of identification image.
Step S102, for image being divided into by the double-colored grid checker board pattern preset the region of grid size, half-tone information coordinate being fallen into the first color grid is constant, falls into the half-tone information inverse of the second color grid.Double-colored grid checker board pattern is preferably the black and white checker board pattern of chess.
Step S103, according to the frame number preset, is dissipated into multiframe by half-tone information corresponding for the image of a described former complete frame then at random, does not occur that the pixel background colour of half-tone information is filled in multiframe, such as white.
Step S104, adds telltale mark to the described half-tone information in multiframe.
Further, for increasing anti-peeping intensity, the image of a former complete frame that will show discrete in multiframe after also comprise: do not show in described multiframe described half-tone information pixel add noise.
Present invention also offers a kind of viewing method for watching above-mentioned display method display frame, as shown in Figure 6, comprising:
Step S300, record multiframe half-tone information, superposes the image being reduced to a described former complete frame in a new frame by described multiframe half-tone information.
Step S400, shows the image of a described former complete frame.
As shown in Figure 7, step S300 specifically comprises:
Step S301, records the multiframe half-tone information of described encryption display unit display.
Step S302, searches the telltale mark in each frame in multiframe, to determine the coordinate of half-tone information in each frame in the multiframe that is separated.
Step S303, the gray-scale value of half-tone informations all in the multiframe of separation identical for coordinate is added, then by described double-colored grid checker board pattern, image is divided into the region of grid size, half-tone information coordinate being fallen into the first color grid is constant, fall into the half-tone information inverse of the second color grid, restore the image of a described former complete frame.
Above embodiment is only for illustration of the present invention; and be not limitation of the present invention; the those of ordinary skill of relevant technical field; without departing from the spirit and scope of the present invention; can also make a variety of changes and modification; therefore all equivalent technical schemes also belong to category of the present invention, and scope of patent protection of the present invention should be defined by the claims.
Claims (10)
1. a display device, it is characterized in that, comprise: ciphering unit and connected encryption display unit, the image of the former complete frame that described ciphering unit will show is discrete in multiframe, each frame comprises half-tone information corresponding to a part of image in a former complete frame, encryption display unit display multiframe half-tone information.
2. display device as claimed in claim 1, it is characterized in that, described ciphering unit comprises:
Gradation conversion unit, for converting the image of a described former complete frame to half-tone information, and identifies the position of the half-tone information being positioned at this pixel with the coordinate of pixel in image coordinate;
Gray scale inverse unit, for image being divided into by the double-colored grid checker board pattern preset the region of grid size, half-tone information coordinate being fallen into the first color grid is constant, falls into the half-tone information inverse of the second color grid;
Discrete point of frame unit, for according to the frame number that presets, is dissipated into multiframe by half-tone information corresponding for the image of a described former complete frame then at random, does not occur that the pixel background colour of half-tone information is filled in multiframe;
Mark adding device, for adding telltale mark to the described half-tone information in multiframe.
3. display device as claimed in claim 2, it is characterized in that, described ciphering unit also comprises: noise adding device, adds noise for the pixel not showing described half-tone information in described multiframe.
4. one kind for watching the viewing apparatus of display device picture described in claim 3, it is characterized in that, comprise: decryption unit and be connected with it and decipher display unit, described decryption unit record multiframe half-tone information, described multiframe half-tone information is superposed in a new frame image being reduced to a described former complete frame, the image of the described former complete frame of described deciphering display unit display.
5. viewing apparatus as claimed in claim 4, it is characterized in that, described decryption unit comprises:
Record cell, for recording the multiframe half-tone information of described encryption display unit display;
Label lookup unit, for searching the telltale mark in multiframe in each frame, to determine the coordinate of half-tone information in each frame in the multiframe that is separated;
Reduction unit, for image being divided into by described double-colored grid checker board pattern the region of grid size, half-tone information coordinate being fallen into the first color grid remains unchanged, fall into the half-tone information inverse of the second color grid, then the gray-scale value of half-tone informations all in the multiframe of separation identical for coordinate is added, restores the image of a described former complete frame.
6. a display packing, is characterized in that, comprising:
The image of a former complete frame that will show is discrete in multiframe, and each frame comprises half-tone information corresponding to a part of image in a former complete frame;
Display multiframe half-tone information.
7. display packing as claimed in claim 6, it is characterized in that, the image of a described former complete frame that will show is discrete in multiframe, and the step that each frame comprises half-tone information corresponding to a part of image in a former complete frame specifically comprises:
Convert the image of a described former complete frame to half-tone information, and identify the position of the half-tone information being positioned at this pixel with the coordinate of pixel in image coordinate;
By the double-colored grid checker board pattern preset, image is divided into the region of grid size, half-tone information coordinate being fallen into the first color grid is constant, falls into the half-tone information inverse of the second color grid;
According to the frame number preset, then random half-tone information corresponding for the image of a described former complete frame is dissipated into multiframe, in multiframe, does not occur that the pixel background colour of half-tone information is filled;
Telltale mark is added to the described half-tone information in multiframe.
8. display packing as claimed in claim 6, is characterized in that, the image of a former complete frame that will show discrete in multiframe after also comprise: the pixel interpolation noise not showing described half-tone information in described multiframe.
9. for watching a viewing method for display packing display frame described in claim 8, it is characterized in that, comprising:
Record multiframe half-tone information, superposes the image being reduced to a described former complete frame in a new frame by described multiframe half-tone information;
Show the image of a described former complete frame.
10. viewing method as claimed in claim 9, it is characterized in that, described record multiframe half-tone information, the step described multiframe half-tone information being superposed in a new frame image being reduced to a described former complete frame specifically comprises:
Record the multiframe half-tone information of described encryption display unit display;
Search the telltale mark in each frame in multiframe, to determine the coordinate of half-tone information in each frame in the multiframe that is separated;
By described double-colored grid checker board pattern, image is divided into the region of grid size, half-tone information coordinate being fallen into the first color grid remains unchanged, fall into the half-tone information inverse of the second color grid, then the gray-scale value of half-tone informations all in the multiframe of separation identical for coordinate is added, restores the image of a described former complete frame.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510002323.9A CN104504350B (en) | 2015-01-04 | 2015-01-04 | Display device, viewing apparatus, display methods and viewing method |
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| CN201510002323.9A CN104504350B (en) | 2015-01-04 | 2015-01-04 | Display device, viewing apparatus, display methods and viewing method |
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| CN104504350B CN104504350B (en) | 2018-01-05 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105679803A (en) * | 2016-03-25 | 2016-06-15 | 北京京东方显示技术有限公司 | Display panel and control method therefor, display device and display system |
| CN107092842A (en) * | 2017-04-14 | 2017-08-25 | 苏州三星电子电脑有限公司 | Secrecy display method and private display device |
| WO2018233340A1 (en) * | 2017-06-19 | 2018-12-27 | 京东方科技集团股份有限公司 | Wearable apparatus, anti-peeping display system, and anti-peeping display method |
| WO2019183984A1 (en) * | 2018-03-31 | 2019-10-03 | 华为技术有限公司 | Image display method and terminal |
| CN110428791A (en) * | 2019-08-16 | 2019-11-08 | 京东方科技集团股份有限公司 | A kind of display device |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105679803A (en) * | 2016-03-25 | 2016-06-15 | 北京京东方显示技术有限公司 | Display panel and control method therefor, display device and display system |
| CN105679803B (en) * | 2016-03-25 | 2018-01-05 | 北京京东方显示技术有限公司 | Display panel and its control method, display device, display system |
| CN107092842A (en) * | 2017-04-14 | 2017-08-25 | 苏州三星电子电脑有限公司 | Secrecy display method and private display device |
| WO2018233340A1 (en) * | 2017-06-19 | 2018-12-27 | 京东方科技集团股份有限公司 | Wearable apparatus, anti-peeping display system, and anti-peeping display method |
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| US11122222B2 (en) | 2017-06-19 | 2021-09-14 | Boe Technology Group Co., Ltd. | Wearable apparatus, anti-peeping display system and anti-peeping display method |
| WO2019183984A1 (en) * | 2018-03-31 | 2019-10-03 | 华为技术有限公司 | Image display method and terminal |
| CN110892405A (en) * | 2018-03-31 | 2020-03-17 | 华为技术有限公司 | Image display method and terminal |
| US11615215B2 (en) | 2018-03-31 | 2023-03-28 | Huawei Technologies Co., Ltd. | Image display method and terminal |
| CN110428791A (en) * | 2019-08-16 | 2019-11-08 | 京东方科技集团股份有限公司 | A kind of display device |
| CN110428791B (en) * | 2019-08-16 | 2021-03-30 | 京东方科技集团股份有限公司 | Display device |
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| CN104504350B (en) | 2018-01-05 |
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