CN2615697Y - Antipeeping liquid crystal display - Google Patents
Antipeeping liquid crystal display Download PDFInfo
- Publication number
- CN2615697Y CN2615697Y CN 03245214 CN03245214U CN2615697Y CN 2615697 Y CN2615697 Y CN 2615697Y CN 03245214 CN03245214 CN 03245214 CN 03245214 U CN03245214 U CN 03245214U CN 2615697 Y CN2615697 Y CN 2615697Y
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- peep
- optically
- polarizer
- proof
- lcd
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- Polarising Elements (AREA)
Abstract
Disclosed is a peep-proof liquid crystal display. The model is presented to provide a peep-proof and secret, process simplified, cost lowered, weight lightened, good productivity increased computer display, which comprises a collate, layer to layer arranged and superposed negative phototropism mold train, a lower deflecting board, a glass base plate, a film membrane electrical crystal, a liquid crystal, an electro-conductive glass, a RGB multicolor optical filter, a single lower deflecting board crystal display which is assembled and fabricated by a glass base plate and a wide view angle membrane, an external deflecting component, and an optically-active base plate arranged between the single lower deflecting board crystal display and the external deflecting component.
Description
Technical field
The utility model belongs to graphoscope, particularly a kind of peep-proof LCD.
Background technology
LCD (LCD) commonly used at present is nothing more than super type (STN), membrane transistor type (TFT) or the LTPS type (LTPS-TFT) etc. turned round.
And LCD (LCD) is to utilize when applying electric field basically, cause liquid crystal molecule to do suitable motion with electric field, lure by liquid crystal molecule that electric anisotropy is positive and negative to be decided, two kinds of NB (NormallyBlack) and NW (Normally White) are arranged on display mode, no matter be NB or NW, basically all must cooperate two Polarizers up and down, to reach the effect of optical gate.Because according to Electromagnetic theory (formula as shown in Figure 1: I=1/2 I
0COS
2θ; I
0Expression incident is the polar biased light intensity not; I represents the intensity by two Polarizers; θ represents two Polarizer optical axis included angles), when θ=0 °, penetrability is original half; And during θ=90 °, penetrability is zero; So it is 90 ° orthogonal that two Polarizers up and down of LCD (LCD) device need be angle, thereby can obtain entirely secretly, to improve contrast.
As Fig. 2, shown in Figure 3, be NW pattern (being bright state when not switching on).
As shown in Figure 2, under not energising situation, when light by behind first Polarizer 21, light is entered in the liquid crystal cave along with after liquid crystal molecule 22 rotations by polarization light, is gone out by second Polarizer 23, thereby presents bright state.
As shown in Figure 3, under the energising situation, cooperate positive induction anisotropy liquid crystal molecule 22, liquid crystal molecule 22 will be upright with direction of an electric field, so light enters in the liquid crystal cave and directly passes.Because 23 one-tenth 90 ° of right angles of the polarization direction and second Polarizer, light is blocked by second Polarizer 23 can't pass the dark state that forms.
Add the RGB colored filter by said structure, each R, G, B picture element can obtain desired brightness, contrast and color under the cooperation of liquid crystal molecule 22 and Polarizer 21,23.
The structure of LCD (LCD) has a lot of layer, and its process is very accurate and complicated, thus processing cost height not only, and also the yield of product manufacturing also is difficult to raising.
Along with LCD (LCD) technical development improves, individualized numerical digit product constantly occurs, and as PDA, NOTEBOOK, panel computer etc., the said equipment is all can take the worker, therefore, can operate whenever and wherever possible, very convenient.But if when operating in the public place, the data information on the computer screen subjects to peep and leaks.
Summary of the invention
The peep-proof LCD that the purpose of this utility model provides, and but a kind of peep-proof is maintained secrecy, simplifies processing procedure, reduced cost, weight reduction, raising produce yield.
The utility model comprises by successively stacked in regular turn module backlight, down Polarizer, glass substrate, membrane transistor, liquid crystal, electro-conductive glass, RGB colored filter, glass substrate and view film processing combine single Polarizer LCD, external polarisation spare down and is arranged at optically-active substrate between single Polarizer LCD down and the external polarisation spare.
Wherein:
The optical axis included angle of the optically-active angle of optically-active substrate, external polarisation spare and following Polarizer and be 90 °; Be of the setting of the external polarisation spare that the optically-active angle reaches and the optically-active angle is arranged in pairs or groups of optically-active substrate as peep-proof angle password.
The optically-active substrate is to have the sheet material of incident light being made travel angle rotation function.
The optically-active substrate is 1/2nd wave plates.
External polarisation spare is polaroid glasses.
External polarisation spare is movable Polarizer.
Phasic difference plate or view film system are attached on the external polarisation spare.
For the external polarisation spare system of movable Polarizer props up with the support bar that is inserted on the attic base.
For the external polarisation spare system of movable Polarizer props up with the support bar that is inserted on the computor-keyboard.
Support bar is the scalable body of rod.
Because the utility model comprises by successively stacked in regular turn module backlight, down Polarizer, glass substrate, membrane transistor, liquid crystal, electro-conductive glass, RGB colored filter, glass substrate and view film processing combine single Polarizer LCD, external polarisation spare down and is arranged at optically-active substrate between single Polarizer LCD down and the external polarisation spare.During the utility model processing and manufacturing, only Polarizer under the installing promptly reduces processing procedure, has relatively reduced processing cost, to simplify processing procedure, improves the yield of product; And can reduce the use amount of Polarizer,, also alleviate the weight of LCD relatively except that reducing the Material Cost; Also phasic difference plate or view film can be attached on the polaroid glasses, reduce the use amount of phase difference plate or view film, be reduced production costs once more, and alleviate the weight of LCD once more, make it more frivolous.During enforcement, after light is by following Polarizer, no matter switch on or "on" position not, light all can be worn in public by glass substrate, and present the state that confusion can't moulding, make it to be beyond recognition the data content that computer screen manifests, in case other people spy on, because of only installing Polarizer down, thereby make each R, the G of RGB colored filter, B picture can't present the state that opens or closes, therefore, whole image can't form desired contrast image, the data content of computer no longer is apparent on the picture, is prevented that other people from spying on.During use, the optically-active substrate is added before screen, and cooperate and the external polarisation spare of optical axis included angle ≠ 90 of following Polarizer °, make down the polarization direction of Polarizer become 90 ° with the polarization direction of external polarisation spare, to reach the optical gate effect, just can be clear that data on the screen by external polarisation spare; And with the optically-active substrate of different optically-active angles and with the setting of the external polarisation spare of its angle collocation as peep-proof angle password, prevent to make that because of having the following Polarizer of producing with the fixed optical axis angle all external polarisation spares all can mutual observable phenomenon, cause losing the anxiety of peep-proof usefulness.Not only but peep-proof is maintained secrecy, and simplify processing procedure, reduce cost, weight reduction, raising produce yield, thereby reach the purpose of this utility model.
Description of drawings
Fig. 1, be the saturating theoretical construct synoptic diagram of Polarizer light.
Fig. 2, be known LCD action synoptic diagram (not "on" position).
Fig. 3, be known LCD action synoptic diagram ("on" position).
Fig. 4, be the utility model structural representation.
Fig. 5, be the utility model action synoptic diagram ("on" position).
Fig. 6, be the utility model action synoptic diagram (not "on" position).
Fig. 7, be the utility model user mode synoptic diagram ("on" position).
Fig. 8, be the utility model user mode synoptic diagram (not "on" position).
Fig. 9, for optically-active substrate light rotation status synoptic diagram.
Figure 10, be that the light of 1/2nd wave plates changes the angle state synoptic diagram.
Figure 11, be the utility model user mode synoptic diagram.
Figure 12, be the utility model user mode synoptic diagram.
Embodiment
As shown in Figure 7, the utility model comprises single down Polarizer LCD 30, external polarisation spare and is arranged at optically-active substrate between single Polarizer LCD 30 down and the external polarisation spare.
As shown in Figure 4, during single time Polarizer LCD (LCD) 30 processing and manufacturings, each structural sheet is successively stacked, illustrate with membrane transistor type (TFT) LCD (LCD), it comprises the module backlight 31 of successively stacked in regular turn processing combination, following Polarizer 32, glass substrate 33, membrane transistor (TFT) 34, liquid crystal 35, electro-conductive glass (ITO) 36, RGB colored filter 37, glass substrate 33 and view film 38.Be that the utility model has only Polarizer 32 under a slice.
During enforcement, after light is by following Polarizer 32, "on" position as shown in Figure 5 no matter, still not "on" position as shown in Figure 6, light all can be worn in public by glass substrate 33, and present the state that confusion can't moulding, make it to be beyond recognition the data content that computer screen manifests, in case other people spy on,, thereby make each R of RGB colored filter 37 because of Polarizer 32 is descended in an installing, G, the B picture can't present the state that opens or closes, therefore, whole image can't form desired contrast image, and the data content of computer no longer is apparent on the picture, be prevented that other people from spying on.
Because during single down Polarizer LCD (LCD) 30 processing and manufacturings, for the convenience of asking volume production and be not that all LCD (LCD) products all need peep-proof, the following Polarizer 32 of institute is all with fixed angle production.
As Fig. 7, shown in Figure 8, the optically-active substrate can be full slide 51.Also can be as shown in figure 10, the optically-active substrate is 1/2nd wave plates 52.
As Fig. 7, shown in Figure 8, external polarisation spare is polaroid glasses 41.Also can be as Figure 11, shown in Figure 12, external polarisation spare is movable Polarizer 42.Optical axis included angle ≠ 90 of external polarisation spare and following Polarizer °, promptly＞90 ° or＜90 °.
And,, can reach the optical gate effect so that the polarization direction of Polarizer 32 becomes 90 ° down by the optically-active substrate that is arranged between single Polarizer LCD 30 down and the external polarisation spare.
During use, as Fig. 7, shown in Figure 8, to add for the optically-active substrate of full slide 51 before single Polarizer LCD (LCD) 30 screens down, and cooperate external polarisation spare for optical axis included angle ≠ 90 of polaroid glasses 41 and following Polarizer 32 °, make down the polarization direction of Polarizer 32 become 90 ° with the polarization direction of external polarisation spare, to reach the optical gate effect, just can be clear that data on the screen by external polarisation spare.Change light angle by the optically-active substrate that is arranged between single Polarizer LCD 30 down and the external polarisation spare, do the angle rotation with the incident light that will enter the optically-active substrate, it is the polarizing angle of the light behind the Polarizer 32 under mat optically-active substrate rotation change is passed through, so that be optical axis included angle ≠ 90 ° of external polarisation spare and the following Polarizer 32 of polaroid glasses 41 or movable Polarizer 42, promptly＞90 ° or＜90 °, with the optically-active substrate of different optically-active angles and with the setting of the external polarisation spare of its angle collocation as peep-proof angle password, prevent because of having the single Polarizer LCD (LCD) 30 down of the following Polarizer of producing with the fixed optical axis angle 32, and make that all external polarisation spares all can mutual observable phenomenon, cause losing the anxiety of peep-proof usefulness.
As shown in Figure 9, for the optically-active substrate of full-wave plate 51 is to have the sheet material of incident light being made travel angle rotation function, it is that the incident light that enters the optically-active substrate is done the angle rotation, the polarization direction of incident light rotates change gradually and places an angle in the optically-active substrate, make between incident light and the emergent light and produce angle difference, to change the light travel angle.
As shown in figure 10, the optically-active substrate can be used 1/2nd wave plates 52 instead, to change or to adjust the polarization direction of penetrating light, is reached for the identical usefulness of full-wave plate optically-active substrate, to change the light travel angle.
As shown in figure 11, optically-active substrate system directly add be hung on single Polarizer LCD (LCD) 30 screens down before, except that can cooperating external polarisation spare for polaroid glasses 41 to use to watch, can also be used for the external polarisation spare of movable Polarizer 42 and watch.Movable Polarizer 42 be sticked phasic difference plate or view film, it is to prop up with the support bar 61 that is inserted on the attic base 71, can changing the position that movable Polarizer 42 is put with the user.
As shown in figure 12, movable Polarizer 42 is to prop up with the support bar 62 that is inserted on the computor-keyboard 81.Support bar 62 can be the flexible body of rod, adjusts its required height to make things convenient for the user.
During LCD (LCD) processing and manufacturing, only Polarizer under the installing promptly reduces processing procedure, has relatively reduced processing cost, to simplify processing procedure, improves the yield of product.Only install a slice Polarizer on the LCD (LCD), can reduce the use amount of Polarizer,, also alleviate the weight of LCD (LCD) relatively except that reducing the Material Cost.Also phasic difference plate or view film can be attached on the polaroid glasses in addition, reduce the use amount of phase difference plate or view film, be reduced production costs once more, and the alleviate LCD once more weight of (LCD), make it more frivolous.
Claims (10)
1, a kind of peep-proof LCD is characterized in that it comprises by successively stacked in regular turn module backlight, down Polarizer, glass substrate, membrane transistor, liquid crystal, electro-conductive glass, RGB colored filter, glass substrate and view film processing combine single Polarizer LCD, external polarisation spare down and is arranged at optically-active substrate between single Polarizer LCD down and the external polarisation spare.
2, peep-proof LCD according to claim 1, it is characterized in that the optically-active angle of described optically-active substrate, external polarisation spare and following Polarizer optical axis included angle and be 90 °; Be of the setting of the external polarisation spare that the optically-active angle reaches and the optically-active angle is arranged in pairs or groups of optically-active substrate as peep-proof angle password.
3, peep-proof LCD according to claim 1 is characterized in that described optically-active substrate is to have the sheet material of incident light being made travel angle rotation function.
4, peep-proof LCD according to claim 1 is characterized in that described optically-active substrate is 1/2nd wave plates.
5, peep-proof LCD according to claim 1 is characterized in that described external polarisation spare is polaroid glasses.
6, peep-proof LCD according to claim 1 is characterized in that described external polarisation spare is movable Polarizer.
7, peep-proof LCD according to claim 1 is characterized in that described phasic difference plate or view film system is attached on the external polarisation spare.
8, peep-proof LCD according to claim 6 is characterized in that described external polarisation spare for movable Polarizer is to prop up with the support bar that is inserted on the attic base.
9, peep-proof LCD according to claim 6 is characterized in that described external polarisation spare for movable Polarizer is to prop up with the support bar that is inserted on the computor-keyboard.
10, according to Claim 8 or 9 described peep-proof LCD, it is characterized in that described support bar is the scalable body of rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03245214 CN2615697Y (en) | 2003-04-14 | 2003-04-14 | Antipeeping liquid crystal display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03245214 CN2615697Y (en) | 2003-04-14 | 2003-04-14 | Antipeeping liquid crystal display |
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| Publication Number | Publication Date |
|---|---|
| CN2615697Y true CN2615697Y (en) | 2004-05-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03245214 Expired - Fee Related CN2615697Y (en) | 2003-04-14 | 2003-04-14 | Antipeeping liquid crystal display |
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Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101038394B (en) * | 2006-03-14 | 2010-06-16 | Nec液晶技术株式会社 | Sight controllable display device and terminal having the same |
| CN101315722B (en) * | 2007-05-28 | 2010-08-04 | 冲电气工业株式会社 | Automatic cash transaction apparatus |
| CN102360136A (en) * | 2011-10-26 | 2012-02-22 | 南京中电熊猫液晶显示科技有限公司 | Anti-peep liquid crystal display |
| CN103064211A (en) * | 2012-10-15 | 2013-04-24 | 京东方科技集团股份有限公司 | Liquid crystal display device, special glasses and confidentially displaying 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 |
| CN103097951A (en) * | 2010-09-09 | 2013-05-08 | 3M创新有限公司 | Switchable privacy filter |
| CN103713419A (en) * | 2013-12-26 | 2014-04-09 | 京东方科技集团股份有限公司 | Display system |
| CN103838028A (en) * | 2012-11-27 | 2014-06-04 | 英业达科技有限公司 | Privacy display device |
| US20140267960A1 (en) * | 2013-03-13 | 2014-09-18 | Tekamaki Ventures | Modified Viewable Display Apparatus |
| CN104090396A (en) * | 2014-07-14 | 2014-10-08 | 京东方科技集团股份有限公司 | Display system and control system and method of display system |
| CN104090374A (en) * | 2014-06-18 | 2014-10-08 | 京东方科技集团股份有限公司 | Peep-preventing display system and method, peep-preventing displayer and peep-preventing glasses |
| CN104375278A (en) * | 2014-11-19 | 2015-02-25 | 深圳市华星光电技术有限公司 | Liquid-crystal display system and polaroid glasses |
| WO2015081680A1 (en) * | 2013-12-04 | 2015-06-11 | 京东方科技集团股份有限公司 | Display system with security features |
| CN104865736A (en) * | 2015-06-12 | 2015-08-26 | 苏州云远网络技术有限公司 | Peep-preventing liquid crystal display suite |
| CN105842909A (en) * | 2016-06-16 | 2016-08-10 | 京东方科技集团股份有限公司 | Liquid crystal display (LCD) and manufacturing method thereof |
| CN105911740A (en) * | 2016-05-23 | 2016-08-31 | 哈尔滨理工大学 | Anti-peeping display system based on rotary polaroids |
| CN106408799A (en) * | 2016-11-14 | 2017-02-15 | 天津易通易联科技有限公司 | POS card swiping machine with function of password hiding |
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| CN104122688B (en) * | 2014-07-11 | 2017-07-11 | 京东方科技集团股份有限公司 | A kind of display system |
| US9715122B2 (en) | 2014-11-19 | 2017-07-25 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Liquid crystal display system and polarized glasses |
| CN107256371A (en) * | 2017-01-19 | 2017-10-17 | 河南科技大学 | A kind of preparation method of anti-peeping code input device |
| CN112485942A (en) * | 2020-12-07 | 2021-03-12 | 绍兴知威光电科技有限公司 | Display with elastic polarizing film |
-
2003
- 2003-04-14 CN CN 03245214 patent/CN2615697Y/en not_active Expired - Fee Related
Cited By (31)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101038394B (en) * | 2006-03-14 | 2010-06-16 | Nec液晶技术株式会社 | Sight controllable display device and terminal having the same |
| CN101315722B (en) * | 2007-05-28 | 2010-08-04 | 冲电气工业株式会社 | Automatic cash transaction apparatus |
| CN103097951A (en) * | 2010-09-09 | 2013-05-08 | 3M创新有限公司 | Switchable privacy filter |
| CN102360136A (en) * | 2011-10-26 | 2012-02-22 | 南京中电熊猫液晶显示科技有限公司 | Anti-peep liquid crystal display |
| CN103064211B (en) * | 2012-10-15 | 2015-05-20 | 京东方科技集团股份有限公司 | Liquid crystal display device, special glasses and confidentially displaying device |
| CN103064211A (en) * | 2012-10-15 | 2013-04-24 | 京东方科技集团股份有限公司 | Liquid crystal display device, special glasses and confidentially displaying device |
| WO2014059756A1 (en) * | 2012-10-15 | 2014-04-24 | 京东方科技集团股份有限公司 | Liquid crystal display device, special glasses and displaying system |
| CN103838028A (en) * | 2012-11-27 | 2014-06-04 | 英业达科技有限公司 | Privacy display 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 |
| CN105572957A (en) * | 2013-01-05 | 2016-05-11 | 京东方科技集团股份有限公司 | Polarization detection element, display device, control method of display device and display system |
| US20140267960A1 (en) * | 2013-03-13 | 2014-09-18 | Tekamaki Ventures | Modified Viewable Display Apparatus |
| WO2015081680A1 (en) * | 2013-12-04 | 2015-06-11 | 京东方科技集团股份有限公司 | Display system with security features |
| US9898721B2 (en) | 2013-12-04 | 2018-02-20 | Boe Technology Group Co., Ltd. | Display system with security features |
| CN103713419B (en) * | 2013-12-26 | 2016-08-31 | 京东方科技集团股份有限公司 | A kind of display system |
| CN103713419A (en) * | 2013-12-26 | 2014-04-09 | 京东方科技集团股份有限公司 | Display system |
| CN104090374A (en) * | 2014-06-18 | 2014-10-08 | 京东方科技集团股份有限公司 | Peep-preventing display system and method, peep-preventing displayer and peep-preventing glasses |
| CN104122688B (en) * | 2014-07-11 | 2017-07-11 | 京东方科技集团股份有限公司 | A kind of display system |
| CN104090396B (en) * | 2014-07-14 | 2017-03-29 | 京东方科技集团股份有限公司 | Display system and its control system, method |
| CN104090396A (en) * | 2014-07-14 | 2014-10-08 | 京东方科技集团股份有限公司 | Display system and control system and method of display system |
| US9715122B2 (en) | 2014-11-19 | 2017-07-25 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Liquid crystal display system and polarized glasses |
| WO2016078064A1 (en) * | 2014-11-19 | 2016-05-26 | 深圳市华星光电技术有限公司 | Liquid crystal display system and polarized glasses |
| CN104375278A (en) * | 2014-11-19 | 2015-02-25 | 深圳市华星光电技术有限公司 | Liquid-crystal display system and polaroid glasses |
| CN104865736A (en) * | 2015-06-12 | 2015-08-26 | 苏州云远网络技术有限公司 | Peep-preventing liquid crystal display suite |
| CN105911740B (en) * | 2016-05-23 | 2019-10-25 | 哈尔滨理工大学 | A kind of anti-peeping display system based on rotating polarization piece |
| CN105911740A (en) * | 2016-05-23 | 2016-08-31 | 哈尔滨理工大学 | Anti-peeping display system based on rotary polaroids |
| CN105842909A (en) * | 2016-06-16 | 2016-08-10 | 京东方科技集团股份有限公司 | Liquid crystal display (LCD) and manufacturing method thereof |
| CN105842909B (en) * | 2016-06-16 | 2019-02-26 | 京东方科技集团股份有限公司 | Liquid crystal display device and preparation method thereof |
| CN106408799A (en) * | 2016-11-14 | 2017-02-15 | 天津易通易联科技有限公司 | POS card swiping machine with function of password hiding |
| CN107256371A (en) * | 2017-01-19 | 2017-10-17 | 河南科技大学 | A kind of preparation method of anti-peeping code input device |
| CN106908984A (en) * | 2017-03-30 | 2017-06-30 | 京东方科技集团股份有限公司 | A kind of display panel, its display methods and display device |
| CN112485942A (en) * | 2020-12-07 | 2021-03-12 | 绍兴知威光电科技有限公司 | Display with elastic polarizing film |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |