CN103698958B - A kind of information secrecy screen and secrecy glasses - Google Patents
A kind of information secrecy screen and secrecy glasses Download PDFInfo
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- CN103698958B CN103698958B CN201310723034.9A CN201310723034A CN103698958B CN 103698958 B CN103698958 B CN 103698958B CN 201310723034 A CN201310723034 A CN 201310723034A CN 103698958 B CN103698958 B CN 103698958B
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Abstract
The invention provides a kind of information secrecy screen and secrecy glasses, relate to Display Technique field, solve display screen and show security information and do not obtained problem by stranger while normal display.A kind of information secrecy screen, including the first scan period and the second scan period, described first scan period is used for showing the first image, and described second scan period is for showing the image of specific wavelength, and described first scan period and the second scan period are less than 20ms.
Description
Technical field
The present invention relates to Display Technique field, particularly relate to a kind of information secrecy screen and secrecy glasses.
Background technology
Display screen is a kind of show tools being shown on screen by certain e-file by specific transmission equipment to incide human eye.Existing display screen is mainly used in display image, and is widely used.But when when the information need for confidentiality of display, user nigh people could must obtain alone security information when leaving.Owing to needing the security information of recessiveness transmission for some, this method is too obvious.How making information acquisition person obtain alone security information while display screen shows picture is the new problem solving security information transmission.
Summary of the invention
Embodiments of the invention provide a kind of information secrecy screen and secrecy glasses, can obtain security information by secrecy glasses by described information secrecy screen security information winner under display screen shows image conditions.
For reaching above-mentioned purpose, embodiments of the invention adopt the following technical scheme that
Embodiments provide a kind of information secrecy screen, including the first scan period and the second scan period, described first scan period is used for showing the first image, and described second scan period is for showing the image of specific wavelength, and described first scan period and the second scan period are less than 20ms.
Optionally, described information secrecy screen is liquid crystal display screen.
Optionally, described information secrecy screen includes backlight, described backlight includes the first luminescence unit and the second luminescence unit, described second luminescence unit sends the light of specific wavelength, light at the first luminescence unit of backlight described in described first scan period, light at the second luminescence unit of backlight described in described second scan period.
Optionally, described second luminescence unit is tunable luminescence unit.
Optionally, described first luminescence unit is tunable luminescence unit.
Optionally, described tunable luminescence unit is tunable laser.
Optionally, described information secrecy screen also included for the 3rd scan period, for display interference information.
Embodiments providing a kind of secrecy glasses, described glasses are tunable filter goggle, for filtering the light of different specific wavelength.
Optionally, described glasses include: eyeglass and tunable narrow-band optical filter.
Optionally, described tunable narrow-band optical filter includes successively: the first transparency conducting layer, grating layer, polymer dispersed layer and the second transparency conducting layer.
A kind of information secrecy screen of embodiment of the present invention offer and secrecy glasses, display screen shows the first image in the first scan period, the image of specific wavelength is shown in the second scan period, interference with the first image, the people of the filter goggle that the image then with specific wavelength only wears corresponding specific wavelength can obtain second image information with specific wavelength, realizes the transmission of security information with this.
Accompanying drawing explanation
The display cycle schematic diagram of a kind of information secrecy screen that Fig. 1 provides for the embodiment of the present invention；
A kind of backlight luminescence schematic diagram that Fig. 2 provides for the embodiment of the present invention；
The another kind of backlight luminescence schematic diagram that Fig. 3 provides for the embodiment of the present invention.
Accompanying drawing labelling:
R1-HONGGUANG 1；R2-HONGGUANG 2；R3-HONGGUANG 3；R4-HONGGUANG 4；G-green glow；B-blue light；W-white light.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.
Embodiments provide a kind of information secrecy screen, described information secrecy screen includes the first scan period and the second scan period, described first scan period is used for showing the first image, described second scan period is for showing the image of specific wavelength, and described first scan period and described second scan period are less than 20ms.
It should be noted that described information secrecy screen is display screen.Existing display screen can be that LCDs can also is that self light emitting display panel, and the embodiment of the present invention is described in detail for described information secrecy screen for liquid crystal display screen.Wherein, LCDs includes a plurality of grid line and data wire, wherein provides scanning signal by grid drive circuit to grid line, and data drive circuit provides data signal to data wire.Described in the embodiment of the present invention, a scan period and grid line complete the time of single pass.Described display is used for showing the first image in the first scan period, and wherein said first image can be the image that display screen normally shows, the who object of each viewing all can obtain；At display screen described in described second scan period for showing the image of specific wavelength, the wherein said image with specific wavelength can be security information etc., and it only has specific who object to obtain.Certainly, described second image can also is that other frames, and the embodiment of the present invention is for described second image for security information, and the people only wearing the corresponding specific wavelength glasses of filtration can obtain security information.
Described first scan period and the second scan period are less than 20ms.Namely as it is shown in figure 1, t1 and t2 is less than 20ms.Concrete, owing to security information and normal display image are alternately displays, only enough short when the time of t1 and t2, human eye is just not enough to differentiate two groups of contents, namely only when the first scan period and the second scan period are less than 20ms, cannot differentiating at the first image of the first scan period display and the second image human eye of the second scan period display, described second image only wears the people filtering respective wavelength glasses can obtain security information.It should be noted that now due to the first image and the overlapping display of the second image, display cannot normally show the first image and the second image, then the first image is the interferogram picture of the second image.
Embodiments provide a kind of information secrecy screen, display screen shows the first image in the first scan period, the image of specific wavelength is shown in the second scan period, interference with the first image, then there is the image information that the image of specific wavelength only has specific personage can have specific wavelength by wearing filter goggle to obtain while display the first image, realize the transmission of security information with this.
Optionally, described information secrecy screen includes backlight, described backlight includes the first luminescence unit and the second luminescence unit, described second luminescence unit sends the light of specific wavelength, light at the first luminescence unit of backlight described in described first scan period, light at the second luminescence unit of backlight described in described second scan period.
It should be noted that, existing LCDs includes array base palte, color membrane substrates, backlight and the liquid crystal being arranged between array base palte and color membrane substrates, wherein backlight is used for providing backlight, array base palte and color membrane substrates to form electric field to drive liquid crystal to display.Being provided with colored film layer on color membrane substrates, it at least includes the pixel cell of three kinds of primary colours of red, green, blue, and the light that backlight sends filters the light of different wave length to show different colors by the pixel cell of different base colors.In described second scan period, described second luminescence unit is lighted, for sending the light with specific wavelength, described in there is the light of specific wavelength show specific color by colored film layer display.
As in figure 2 it is shown, white light is the light that display screen normally shows, the light of described specific wavelength can be corresponding HONGGUANG 2.Then in the first scan period, namely within the t1 time period as shown in Figure 1, described first luminescence unit (can be LED) is lighted, and backlight display white light (W), display screen normally shows the first image；In the second scan period, namely within the t2 time period as shown in Figure 1, described second luminescence unit is lighted, and display screen shows the second image formed by HONGGUANG 2 (R2).Then owing to the wavelength of HONGGUANG 2 is indefinite, the talent of the special spectacles only wearing the HONGGUANG 2 that can filter can obtain the second image, thus reaching to transmit the purpose of security information.
Optionally, described second luminescence unit is tunable luminescence unit.Then can send the light of different specific wavelength by tuning described second luminescence unit, namely security information can be displayed by the light of different wave length, it is possible to further enhances the confidentiality of information.Certainly, described second luminescence unit can also is that untunable luminescence unit, then the specific wavelength of the light that described second luminescence unit sends will not change, and the wavelength that namely security information is corresponding is certain.
It is further preferred that described first luminescence unit is tunable luminescence unit.Then described backlight sends out the light of different wave length in the first scan period and the second scan period by tuning.And further, tunable luminescence unit can be tunable laser, and it can send out the light of different wave length as required, then can pass through the light display security information of different wave length, and then the confidentiality of information can be strengthened.
It should be noted that, laser backlight includes blue light, green glow and the LASER Light Source of three kinds of primary colours of HONGGUANG, combined optical system and some line source converting system, wherein, red, green, blue tricolor laser light source synthesizes a branch of standard white light through combined optical system, standard white light converts the line source or column source with certain length to through a line source converting system, is then directed in light guide plate and becomes uniform backlight.
Described first luminescence unit is tunable luminescence unit, then described first luminescence unit can also send the light of different wave length, then described first luminescence unit can also be the luminescence unit of security information.Namely security information can also is that green glow or blue light, and then can strengthen the confidentiality of information.
As it is shown on figure 3, tunable laser can blue light-emitting (B), green glow (G) and HONGGUANG 1 (R1) etc., it is the light that display screen realizes normal display.The described light with specific wavelength can be corresponding HONGGUANG 2 (R2), HONGGUANG 3 (R3) or HONGGUANG 4 (R4).For described security information for HONGGUANG 2, then in the first scan period, namely within the t1 time period as shown in Figure 1, the first image that described laser instrument blue light-emitting (B), green glow (G) and HONGGUANG 1 (R1) are formed；In the second scan period, namely within the t2 time period as shown in Figure 1, the light of the wavelength of the corresponding HONGGUANG 2 (R2) that described laser instrument sends, display screen shows the second image formed by HONGGUANG 2.Certainly, the wavelength of the light that tunable laser sent in the second scan period can also is that corresponding HONGGUANG 3 or HONGGUANG 4.The wavelength of the light of the security information then sent due to the second scan period is indefinite, and the talent of the special spectacles only wearing the corresponding wavelength that can filter can obtain the second image, thus reaching to transmit the purpose of security information.
Optionally, described information secrecy screen also included for the 3rd scan period, for display interference information.Such as described second scan period is used for showing security information, as in figure 2 it is shown, its security information in the second scan period corresponds to HONGGUANG 2, in the 3rd scan period, display can show the interference information of the display image of HONGGUANG 3 correspondence.
It should be noted that described information secrecy screen can also be self light emitting display panel, then described luminescence unit can be tunable luminescence unit, and it can send the light of different wave length in the different scan periods, to realize the display of the first image and security information.
Embodiments providing a kind of secrecy glasses, described glasses are tunable filter goggle, for filtering the light of different specific wavelength.Described tunable filter goggle can select the wavelength of the light filtered as required, and then can pass through to regulate glasses, receives the light of different wave length.The light of described specific wavelength can be the wavelength of the second scan period display image that the embodiment of the present invention provides.
Optionally, described glasses include: eyeglass and tunable narrow-band optical filter.Namely the logical tunable narrow-band optical filter of described tunable filter goggle realizes the adjustment of the light of different wave length, so that described glasses can regulate the light receiving different wave length.
Optionally, described tunable narrow-band optical filter includes successively: the first transparency conducting layer, grating layer, polymer dispersed layer and the second transparency conducting layer.By applying different voltage to transparency conducting layer, thus it is possible to vary the refractive index of prepolymer dispersion layer, thus the wavelength changing optical filter reaches the function of Tunable filters.
The above; being only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, any those familiar with the art is in the technical scope that the invention discloses; the change that can readily occur in or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with described scope of the claims.
Claims (10)
1. an information secrecy screen, it is characterized in that, including the first scan period and the second scan period, described first scan period is used for showing the first image, described second scan period is for showing the image of specific wavelength, and described first scan period and the second scan period are less than 20ms.
2. information secrecy screen according to claim 1, it is characterised in that described information secrecy screen is liquid crystal display screen.
3. information secrecy screen according to claim 2, it is characterized in that, described information secrecy screen includes backlight, described backlight includes the first luminescence unit and the second luminescence unit, described second luminescence unit sends the light of specific wavelength, light at the first luminescence unit of backlight described in described first scan period, light at the second luminescence unit of backlight described in described second scan period.
4. information secrecy screen according to claim 3, it is characterised in that described second luminescence unit is tunable luminescence unit.
5. information secrecy screen according to claim 4, it is characterised in that described first luminescence unit is tunable luminescence unit.
6. the information secrecy screen according to claim 4 or 5, it is characterised in that described tunable luminescence unit is tunable laser.
7. information secrecy screen according to claim 1, it is characterised in that described information secrecy screen also included for the 3rd scan period, for display interference information.
8. secrecy glasses, it is characterised in that described glasses are tunable filter goggle, for filtering the light of information secrecy screen display specific wavelength image described in any one of claim 1 to 7.
9. secrecy glasses according to claim 8, it is characterised in that described glasses include: eyeglass and tunable narrow-band optical filter.
10. secrecy glasses according to claim 9, it is characterised in that described tunable narrow-band optical filter includes successively: the first transparency conducting layer, grating layer, polymer dispersed layer and the second transparency conducting layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310723034.9A CN103698958B (en) | 2013-12-24 | 2013-12-24 | A kind of information secrecy screen and secrecy glasses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310723034.9A CN103698958B (en) | 2013-12-24 | 2013-12-24 | A kind of information secrecy screen and secrecy glasses |
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| Publication Number | Publication Date |
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| CN103698958A CN103698958A (en) | 2014-04-02 |
| CN103698958B true CN103698958B (en) | 2016-07-06 |
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| CN201310723034.9A Expired - Fee Related CN103698958B (en) | 2013-12-24 | 2013-12-24 | A kind of information secrecy screen and secrecy glasses |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105976750B (en) * | 2016-07-19 | 2021-01-01 | 京东方科技集团股份有限公司 | Display control method and device and display device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1445712A (en) * | 2002-12-10 | 2003-10-01 | 中国科学技术大学 | Method for coding and decoding high capacity information and its device |
| CN103091893A (en) * | 2013-01-05 | 2013-05-08 | 京东方科技集团股份有限公司 | Display device and display system |
| CN103293756A (en) * | 2013-05-30 | 2013-09-11 | 京东方科技集团股份有限公司 | Display processing device, system and method |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7170680B2 (en) * | 2005-01-06 | 2007-01-30 | E. I. Du Pont De Nemours And Company | Privacy screen for a display |
| CA2656506A1 (en) * | 2009-02-27 | 2010-08-27 | Bank Of Canada | Security device |
| KR101226226B1 (en) * | 2010-04-22 | 2013-01-28 | 주식회사 엘지화학 | Switchable privacy filter using electrochromic material and preparation method thereof |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1445712A (en) * | 2002-12-10 | 2003-10-01 | 中国科学技术大学 | Method for coding and decoding high capacity information and its device |
| CN103091893A (en) * | 2013-01-05 | 2013-05-08 | 京东方科技集团股份有限公司 | Display device and display system |
| CN103293756A (en) * | 2013-05-30 | 2013-09-11 | 京东方科技集团股份有限公司 | Display processing device, system and method |
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Granted publication date: 20160706 Termination date: 20211224 |