CN101571652B - Liquid crystal display screen - Google Patents
Liquid crystal display screen Download PDFInfo
- Publication number
- CN101571652B CN101571652B CN200810105398XA CN200810105398A CN101571652B CN 101571652 B CN101571652 B CN 101571652B CN 200810105398X A CN200810105398X A CN 200810105398XA CN 200810105398 A CN200810105398 A CN 200810105398A CN 101571652 B CN101571652 B CN 101571652B
- Authority
- CN
- China
- Prior art keywords
- liquid crystal
- layer
- conductive electrode
- base layer
- mixolimnion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 81
- 239000004990 Smectic liquid crystal Substances 0.000 claims abstract description 56
- 239000000654 additive Substances 0.000 claims abstract description 26
- 230000000996 additive effect Effects 0.000 claims description 21
- 229920003023 plastic Polymers 0.000 claims description 11
- 239000004033 plastic Substances 0.000 claims description 9
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N diphenyl Chemical compound C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 claims description 6
- 239000011521 glass Substances 0.000 claims description 5
- -1 siloxy compound Chemical class 0.000 claims description 4
- WLPATYNQCGVFFH-UHFFFAOYSA-N 2-phenylbenzonitrile Chemical group N#CC1=CC=CC=C1C1=CC=CC=C1 WLPATYNQCGVFFH-UHFFFAOYSA-N 0.000 claims description 3
- 235000010290 biphenyl Nutrition 0.000 claims description 3
- 239000004305 biphenyl Substances 0.000 claims description 3
- 125000004093 cyano group Chemical group *C#N 0.000 claims description 3
- 150000002148 esters Chemical class 0.000 claims description 3
- 125000002347 octyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 3
- HNJXPTMEWIVQQM-UHFFFAOYSA-M triethyl(hexadecyl)azanium;bromide Chemical compound [Br-].CCCCCCCCCCCCCCCC[N+](CC)(CC)CC HNJXPTMEWIVQQM-UHFFFAOYSA-M 0.000 claims description 3
- 239000011159 matrix material Substances 0.000 abstract description 6
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 230000005855 radiation Effects 0.000 abstract 1
- 239000000975 dye Substances 0.000 description 32
- 230000000694 effects Effects 0.000 description 17
- 230000003287 optical effect Effects 0.000 description 14
- KZMAWJRXKGLWGS-UHFFFAOYSA-N 2-chloro-n-[4-(4-methoxyphenyl)-1,3-thiazol-2-yl]-n-(3-methoxypropyl)acetamide Chemical compound S1C(N(C(=O)CCl)CCCOC)=NC(C=2C=CC(OC)=CC=2)=C1 KZMAWJRXKGLWGS-UHFFFAOYSA-N 0.000 description 11
- 238000000034 method Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 9
- 239000000463 material Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 230000000750 progressive effect Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 4
- 150000002500 ions Chemical class 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 229920000106 Liquid crystal polymer Polymers 0.000 description 2
- 239000004977 Liquid-crystal polymers (LCPs) Substances 0.000 description 2
- 239000004642 Polyimide Substances 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 201000009310 astigmatism Diseases 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 230000005670 electromagnetic radiation Effects 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- MRNHPUHPBOKKQT-UHFFFAOYSA-N indium;tin;hydrate Chemical compound O.[In].[Sn] MRNHPUHPBOKKQT-UHFFFAOYSA-N 0.000 description 2
- 239000004417 polycarbonate Substances 0.000 description 2
- 229920000515 polycarbonate Polymers 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 229920001721 polyimide Polymers 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- 241001270131 Agaricus moelleri Species 0.000 description 1
- 241000707825 Argyrosomus regius Species 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 229920006397 acrylic thermoplastic Polymers 0.000 description 1
- 125000000751 azo group Chemical group [*]N=N[*] 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 230000002085 persistent effect Effects 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 125000004469 siloxy group Chemical group [SiH3]O* 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 230000004936 stimulating effect Effects 0.000 description 1
- ISXSCDLOGDJUNJ-UHFFFAOYSA-N tert-butyl prop-2-enoate Chemical compound CC(C)(C)OC(=O)C=C ISXSCDLOGDJUNJ-UHFFFAOYSA-N 0.000 description 1
Images
Landscapes
- Liquid Crystal (AREA)
Abstract
The invention relates to a liquid crystal display screen comprising a liquid crystal display module; the front side of the liquid crystal display module is provided with a wedged photoconductive layer; a lighting source is arranged above the liquid crystal display module and the photoconductive layer; the liquid crystal display module comprises a first matrix layer and a second matrix layer between which a mixed layer is arranged, and the mixed layer is formed by mixing smectic liquid crystal and additives; the side of the first matrix layer, facing to the mixed layer, is provided with a first conductive electrode layer, and the side of the second matrix layer, facing to the mixed layer, is provided with a second conductive electrode layer; the first conductive electrode layer comprises M parallel stripped electrodes, and the second conductive electrode layer comprises N parallel stripped electrodes; and the M stripped electrodes and the N stripped electrode are orthogonal to form a MxN pixel array. The invention has low energy consumption, no radiation and strong display contrast and can be used as a traffic indication display device and an outdoor or military field display device.
Description
Technical field
The present invention relates to a kind of LCDs, specifically, relate to a kind of LCDs that adopts irradiation of sidelight source and smectic phase liquid crystal technology to make.
Background technology
At present, the kind of using more liquid crystal display have backlight through (transimissive) type with pass through reflection (transflective) type.Most ofly backlightly comprise backlight, reflecting surface and scattering film through the type liquid crystal display, backlight makes light even through scattering film, evenly not adding any obstruct between backlight part and the liquid crystal panel, is affected with the transmissivity of avoiding backlight.The liquid crystal panel of Transflective liquid crystal display also comprises the backlight of reflective back plane and screen back, and backlight forms through scattering film or photoconductive layer and shows required uniform plane property light.It is thus clear that, also there is not the liquid crystal display of transmission-type (see-through) at present, promptly liquid crystal panel does not have the liquid crystal display of backlight or any reflective back plane at the back.And above-mentioned two kinds of LCDs all need power supply to supply power for a long time.Thereby designing LCDs a kind of power saving, transmission-type is present urgent problem.
Summary of the invention
The object of the present invention is to provide a kind of LCDs that adopts irradiation of sidelight source and smectic phase liquid crystal technology to make, this LCDs is a rear projection screen, and display effect is good, power saving, environmental protection.
To achieve these goals, the present invention has adopted following technical scheme:
A kind of LCDs is characterized in that: it comprises LCD MODULE, and the front side of this LCD MODULE is provided with the photoconductive layer of the wedge-type shape that the top is wide, the bottom is narrow, above this LCD MODULE and photoconductive layer, is provided with lighting source, wherein:
This LCD MODULE comprises first base layer and second base layer; Centre at this first base layer and second base layer is provided with a mixolimnion; This mixolimnion is formed by smectic phase liquid crystal and additives mixed; This smectic phase liquid crystal for the band siloxy compound, four cyano four octyl group biphenyl or tetraacethyl ester in last of the ten Heavenly stems four cyano biphenyl in any; This additive is a cetyltriethylammonium bromide, is provided with first conductive electrode layer at first base layer towards a side of mixolimnion, is provided with second conductive electrode layer at second base layer towards a side of mixolimnion; First conductive electrode layer is made up of M strip shaped electric poles that is arranged in parallel; Second conductive electrode layer is made up of the strip shaped electric poles that N is arranged in parallel, and N strip shaped electric poles of the M of first conductive electrode layer strip shaped electric poles and second conductive electrode layer be quadrature mutually, so that this first conductive electrode layer and second conductive electrode layer form the pixel array of one M * N.
The present invention has the following advantages:
1, owing to is applied to the electric signal on each strip shaped electric poles through control; The smectic phase liquid crystal molecule can demonstrate different arrangement form; Thereby each pixel of LCDs can be changed between vaporific and full clear state; Even between the multiple progressive state of different gray, switch, setting off down at the black backboard, display screen demonstrates the black and white state.Transmittance when LCD MODULE is in the bright state of full impregnated can arrive more than 80%, and the astigmatism property when being in vaporific scattering state is very stable, and photoconductive layer does not influence the transmitance of scattered beam, sets off down at backboard, and the contrast of display degree is strong.
2, because LCDs adopts the smectic phase liquid crystal to process, and the additive that mixes in it has conductive characteristic, so after removing electric signal, the show state that display screen produces in the time of still keeping on-load voltage has well " multistable " characteristic.And because this " multistable " characteristic, working current required for the present invention is little, only when changing the moment of Liquid Crystal Molecules Alignment form, just need power up, and energy consumption is low.And because should " multistable " characteristic, the present invention almost have electromagnetic radiation, and smectic phase liquid crystal material itself just do not have any toxic action, so health environment-friendly of the present invention.
3, the switching time between the bright state of vaporific scattering and full impregnated very short, be generally several to dozens of milliseconds, if between the multiple progressive state of different gray, switch, then switch speed is faster.
4, if be mixed with dichroic dye in the LCD MODULE, then display screen can demonstrate versicolor pattern or literal, has very strong aesthetic property.
5, because the present invention adopts photoconductive layer that side emission light is almost all injected LCD MODULE, the light source utilization factor is high, has greatly improved the black and white or the colour contrast of display screen.
6, because the photoconductive layer dip plane has certain angle; The light that makes the vertical bank face penetrate is more; Be that the contrast of display screen on the angle of vertical bank face is best,, hang on the display screen of outdoor column eminence like conduct so can display applications of the present invention be shown in eminence; The beholder comes back just can see displaying contents, and the content of just looking at is very clearly.
The present invention is all applicable under the strong and weak environment of light, and under the high light environment, can not open lighting source.The present invention can be used as traffic indicated number device, open air or military open-air display device.
Description of drawings
Fig. 1 is the structural representation of LCDs of the present invention;
Fig. 2 is the composition synoptic diagram of LCD MODULE;
Fig. 3 is arranged in the first and second conductive electrode layer synoptic diagram of lattice array shape anyhow.
Fig. 4 is the smectic phase liquid crystal arrangement form synoptic diagram under the low-frequency voltage effect;
Fig. 5 is the smectic phase liquid crystal arrangement form synoptic diagram under the HF voltage effect;
Fig. 6 is the light transmission principle schematic under the out of order arrangement of smectic phase liquid crystal;
Fig. 7 is the light transmission principle schematic of smectic phase liquid crystal under regularly arranged;
Fig. 8 is smectic phase liquid crystal and the dichroic dye arrangement form synoptic diagram under the low-frequency voltage effect;
Fig. 9 is smectic phase liquid crystal and the dichroic dye arrangement form synoptic diagram under the HF voltage effect.
Embodiment
As shown in Figure 1; LCDs of the present invention comprises LCD MODULE 100; The front side of this LCD MODULE 100 is provided with the photoconductive layer 200 (as photoconductive layer being sticked at the LCD MODULE front side) of the wedge-type shape that the top is wide, the bottom is narrow, above this LCD MODULE 100 and photoconductive layer 200, is provided with lighting source 300.
Extremely shown in Figure 5 like Fig. 2; This LCD MODULE 100 comprises first base layer 101 and second base layer 102; Be provided with a mixolimnion 103 in the centre of this first base layer 101 and second base layer 102; This mixolimnion 103 is formed by smectic phase liquid crystal and additives mixed; Promptly mix, be coated with first conductive electrode layer 104 towards a side of mixolimnion 103, be coated with second conductive electrode layer 105 towards a side of mixolimnion 103 at second base layer 102 at first base layer 101 by smectic phase liquid crystal molecule among the figure 1031 and additive molecule 1 032; First conductive electrode layer 104 is made up of M strip shaped electric poles 1041 that is arranged in parallel; Second conductive electrode layer 105 is made up of the strip shaped electric poles 1051 that N is arranged in parallel, and N strip shaped electric poles 1051 of the M of first conductive electrode layer 104 strip shaped electric poles 1041 and second conductive electrode layer 105 be quadrature mutually, so that the pixel-matrix array structure of this first conductive electrode layer 104 and second conductive electrode layer, 105 formation one M * N; A strip shaped electric poles 1041 and a strip shaped electric poles 1051 form a pixel, pixel 106 for example shown in Figure 3.During actual the use, each strip shaped electric poles of first conductive electrode layer 104 and second conductive electrode layer 105 links to each other with a driving control device 500, and driving control device 500 is used to control the voltage that is applied on the strip shaped electric poles.Two conductive electrode layers 104 and 105 and middle mixolimnion 103 formed a capacitance structure that area is very big, each pixel is a capacitance structure that independent area is very little.First conductive electrode layer 104 and second conductive electrode layer 105 are transparent, and it can be ITO (tin indium oxide) etc., and can use auxiliary metal electrode as required, like aluminium, copper, silver etc.
In the practical application, the material of first base layer 101 and second base layer 102 is chosen as glass or plastics.For example, first base layer 101 and second base layer 102 are glass, and perhaps first base layer 101 and second base layer 102 are plastics, and perhaps in first base layer 101 and second base layer 102 is a glass, and another is plastics.Wherein, plastics can be transparent plastic film, transparent hard plastic plate.
Generally, the THICKNESS CONTROL of mixolimnion 103 is at 2 microns～30 microns, if the thickness of mixolimnion 103 less than 2 microns or greater than 30 microns, then astigmatic effect reduces, and can not satisfy required astigmatic performance.In mixolimnion 103, additive mainly is the electric conductivity that increases mixolimnion, and additive is changed the arrangement form of smectic phase liquid crystal by the driving and generating motion under the voltage effect, so the consumption of additive should be seldom, otherwise is difficult to drive.Generally, the smectic phase liquid crystal accounts for and mixes 90%～99.999% of general assembly (TW), and additive accounts for and mixes 0.001%～10% of general assembly (TW).Usually, room temperature-20 ℃ is during to+60 ℃, and smectic phase liquid crystal molecule 1031 clusters are the layered arrangement structure, demonstrate the starchiness of thickness.In the present invention, the smectic phase liquid crystal is category-A smectic phase liquid crystal (Smectic-A) organic compound, like compound, four cyano four octyl group biphenyl or tetraacethyl ester in the last of the ten Heavenly stems four cyano biphenyl etc. of band siloxy (Siloxane).Additive is the compound of band conductive characteristic, contains the compound of conductive ion like cetyltriethylammonium bromide etc.
In practical application; Additive can suitably add with the thickness of mixolimnion 103, and as when mixolimnion thickness is 2 microns, additive can be controlled in to account for and mixes 0.001% of general assembly (TW); When the thickness of mixolimnion was 10 microns, additive can be controlled in to account for and mixes 0.01% of general assembly (TW).Certainly, this thickness range and additive doping content ratio be very tight regulation not, if with THICKNESS CONTROL between 2 microns to 30 microns, with additive be controlled at account for mix general assembly (TW) 0.001% to 10% between get final product.
During actual fabrication, the potpourri that smectic phase liquid crystal and additives mixed form is to record in the crack of 102 of first base layer 101 and second base layers, and promptly mixolimnion 103 forms for recording.This records process and traditional STN (Super Twisted Nematic; The nematic state liquid crystal of reinforcement distortion) process of recording is similar; Different is: the process of recording that the present invention uses does not have traditional STN to record three links of paster of PI (polyimide, polyimide) the brush system of oriented layer, the paster of light polarizing film and color screen in the process.And because the problem of the viscosity of smectic phase liquid crystal material own; Before recording the smectic phase liquid crystal that is mixed with additive; Need be heated uniform temperature; Be generally more than 70 ℃, show as mobilely when liquid up to the smectic phase liquid crystal that is mixed with additive, just can use traditional STN process of recording to carry out vacuum and record.
In the present invention, the top of lighting source 300 is provided with arc cover 301, and the inside surface of this arc cover 301 is coated with highly reflecting films (as: aluminium), and this arc cover 301 is used for the light that collimated light source 300 is launched, so that light is injected photoconductive layer 200 in a large number and made full use of.Lighting source 300 can be light emitting diode or cold fluorescent light.It is suitable that required angle takes place to launch entirely in photoconductive layer 200 for photoconductive layer 200 bottom tiltangles and incident light.For example; Photoconductive layer 200 selects acrylics material (Acrylic), polyethylene terephthalate plastic material (PET) or polycarbonate plastic material transparent plastic materials such as (Polycarbonate) to process; Its refraction coefficient is about 1.5; The critical angle that total reflection takes place on photoconductive layer 200 interior reflective surface 201 setting light is α (α is generally greater than 45 °), and tiltangle should be less than α, so so; When incident angle equals just full emission can take place behind the light directive reflecting surface 201 greater than α, light is all injected LCD MODULE 100.The outside, dip plane of photoconductive layer 200 can plate one deck antireflection film; The percent of pass that the light that this antireflection film not only can make process LCD MODULE 100 effect backs penetrate sees through photoconductive layer 200 dip plane is higher, can prevent that also the sunshine generation dazzle that is mapped to photoconductive layer 200 dip plane from stimulating human eye.The rear side of LCD MODULE 100 can be provided with backboard 400, and 100 of this backboard 400 and LCD MODULEs leave certain gap (as: several millimeters to several centimetres), thereby light can produce more catadioptric between backboard 400 and LCD MODULE 100.The LCDs that does not add backboard 400 is a rear projection screen, and the LCDs that adds backboard 400 is a reflection type screen.These backboard 400 colors can be black, white etc.
To shown in Figure 7, specifically describe principle of work of the present invention like Fig. 4 below:
The light of lighting source 300 emission is injected photoconductive layer 200 then through arc cover 301 collimations, after on the reflecting surface 201 of photoconductive layer 200 total reflection taking place (for example Fig. 6 and Fig. 7 illustrate light L), injects LCD MODULE 100.
Like Fig. 4 and shown in Figure 6; When the alternating voltage that on a strip shaped electric poles 1051 of the strip shaped electric poles 1041 of first conductive electrode layer 104 and second conductive electrode layer 105, applies 50v～250v, 50Hz～200Hz; When voltage action time during less than 1 second; Smectic phase liquid crystal molecule 1031 in the mixolimnion 103 of the pixel correspondence that two strip shaped electric poles form just twists, and forms out of order arrangement form shown in Figure 4.Because each of smectic phase liquid crystal molecule 1031 is to diversity (promptly because incident ray is different through the long optical axis of each liquid crystal, and the anaclasis angle of each liquid crystal is different, thereby the refractive index of each liquid crystal is different); Make the ray refraction of each smectic phase liquid crystal molecule 1031 of incident exist very big difference; Promptly in the mixolimnion 103 of this meagre thickness, optical index is producing violent variation, thereby strong scattering has taken place light; Part light penetrates photoconductive layer 200 (like L1 among Fig. 6); Macroscopic view appears a kind of like the vaporific astigmatic effect as the acute-matte, sets off down at black backboard 400, and pixel shows as white.If the outside, the dip plane of photoconductive layer 200 is coated with antireflection film, then light is higher through the percent of pass of photoconductive layer 200 dip plane, and the black and white contrast can improve.
Like Fig. 5 and shown in Figure 7; When on a strip shaped electric poles 1051 of the strip shaped electric poles 1041 of first conductive electrode layer 104 and second conductive electrode layer 105, applying 50v～250v, alternating voltage more than the 1000Hz, when voltage action time during less than 1 second, the smectic phase liquid crystal molecule 1031 in the corresponding mixolimnion 103 of the pixel that two strip shaped electric poles form just becomes regularly arranged form; At this moment; The long optical axis of smectic phase liquid crystal molecule 1031 is perpendicular to the conductive electrode layer plane, and the ray refraction of each smectic phase liquid crystal molecule 1031 of incident does not produce acute variation, and light can freely see through mixolimnion 103; Macroscopic view presents the bright state of a kind of full impregnated; Set off down at black backboard 400, the light that LCD MODULE is crossed in complete transmission is absorbed by black backboard 400, and pixel shows as black.
After each strip shaped electric poles on-load voltage of giving two conductive electrode layers 104 and 105 and pixel are changed by driving, just can remove the voltage that applies.And the maintenance of this luminous effect of pixel does not need voltage to keep, promptly remove voltage after, the luminous effect that pixel produces in the time of still can keeping on-load voltage, and the voltage signal of effect is just in order to change the arrangement form of smectic phase liquid crystal molecule 1031.In the present invention, this state that does not need electricity to drive and keep luminous effect is called " multistable " or " quasistatic ".And this " multistable " is because the additive molecule 1 032 in the mixolimnion 103 has adopted the compound of band conductive characteristic; When applying electric signal; Ion in the compound of band conductive characteristic changes the generation to-and-fro movement according to electric potential difference; This motion can change the arrangement form of liquid crystal molecule 1031, and liquid crystal molecule 1031 arrangement form after changing do not need the persistent movement of ion to keep, and are stable." multistable " effect that this smectic phase liquid crystal and additive produce and liquid crystal polymer technology produce, and to keep effect different, and the liquid crystal that has added high molecular polymer in the liquid crystal polymer technology is to keep by surface force, intermolecular force and friction force in the number of polymers network.
Certainly; When reality is implemented,, can make the arrangement form of smectic phase liquid crystal molecule 1031 become the part distortion through voltage swing, frequency and the action time on reasonable control two conductive electrode layers 104 and 105; To produce astigmatic effect in various degree; The multiple progressive state of macro manifestations for having different gray in generation between vaporific and bright two states of full impregnated like translucent etc., thereby makes pixel demonstrate the color of different gray scales.
For whole LCDs 100, through driving strip shaped electric poles 1051 line by line, and respective drive strip shaped electric poles 1041 simultaneously, make each pixel become required state, lined by line scan until entire display screen, make literal or pattern that display screen demonstrates to be needed.
Like Fig. 8 and shown in Figure 9, in mixolimnion 103, also can be mixed with a certain amount of dichroic dye, like flaxen azo group dichroic dye.Through mixing dichroic dye, can make mixolimnion 103 bright and have between the coloured light and change at full impregnated.Dichroic dye is selected the dichroic dye that is long molecularity for use, the optical axis similar of this dichroic dye and smectic phase liquid crystal.In parallel direction along long optical axis, a little less than the absorption very of 033 pair of light of this dichroic dye molecule 1, and the vertical direction of the long optical axis in edge, this dichroic dye molecule 1 033 can absorb the light of certain wave band dramatically.
As shown in Figure 8; On a strip shaped electric poles 1041 and a strip shaped electric poles 1051, apply the alternating voltage of 50v～250v, 50Hz～200Hz; When being used as with the time less than 1 second; Smectic phase liquid crystal molecule 1031 in the mixolimnion 103 of the pixel correspondence that two strip shaped electric poles form becomes the out of order arrangement form of reversing, and because dichroic dye molecule 1 033 is very little with smectic phase liquid crystal molecule 1031 spacings, so when smectic phase liquid crystal molecule 1031 reverses; It is disorderly and unsystematic that dichroic dye molecule 1 033 also becomes thereupon, even the long optical axis of a large amount of dye molecules 1033 is parallel to the conductive electrode layer plane.When light 601 was injected mixolimnion 103, because the ray refraction difference of each smectic phase liquid crystal molecule 1031, strong scattering took place in light.Under the scattering that smectic phase liquid crystal molecule 1031 produces; A large amount of light are injected dye molecule 1033 along the vertical direction of dye molecule 1033 long optical axises; Thereby necessarily the light of wave band is greatly absorbed by dye molecule 1033, and the light 602 that scatters demonstrates the color (color that appears is difference with the difference of dichroic dye structure) of dye molecule, and macroscopic view demonstrates certain fuzzy color; Set off down at black backboard 400, pixel shows as certain color.This color realizes through dyes in different colors is mixed with the smectic phase liquid crystal, if make dye molecule 1033 evenly absorb visible light, even can realize the grey black look.
As shown in Figure 9, on a strip shaped electric poles 1041 and a strip shaped electric poles 1051, apply 50v～250v, the alternating voltage more than the 1000Hz, when being used as with the time less than 1 second; Smectic phase liquid crystal molecule 1031 in the mixolimnion 103 of the pixel correspondence that two strip shaped electric poles form all becomes regularly arranged form with dichroic dye molecule 1 033, and at this moment, the long optical axis of liquid crystal molecule 1031 and the long optical axis of dichroic dye molecule 1 033 are all perpendicular to the conductive electrode layer plane; Therefore; The ray refraction of each smectic phase liquid crystal molecule 1031 of incident does not produce acute variation, and since the long optical axis of dichroic dye molecule 1 033 perpendicular to the conductive electrode layer plane, light is along the parallel direction incident of dichroic dye molecule 1 033 long optical axis; 033 of dichroic dye molecule 1 absorbs small light (this absorbing amount depends on regularly arranged degree and the solubleness of dye molecule 1033 with respect to liquid crystal molecule 1031); So incident ray 603 has only a small amount of light to be absorbed through behind the mixolimnion 103, finally freely see through mixolimnion 103; Like the ejaculation light 604 among Fig. 9; Macroscopic view demonstrates the bright state of full impregnated, sets off down at black backboard 400, and pixel shows as black.
When mixing dichroic dye in the mixolimnion 103, backboard 400 also can be white, and like this, display screen just is rendered as the conversion between a kind of white and colour.
Above-mentioned smectic phase liquid crystal molecule 1031 is long molecularity, and the smectic phase liquid crystal molecule 1031 of this long molecularity has very strong birefraction.In practical application, can adjust the strand of smectic phase liquid crystal molecule 1031, reduce the birefraction of smectic phase liquid crystal molecule 1031; Like this; Be parallel to smectic phase liquid crystal molecule 1031 long optical axis directions and perpendicular to smectic phase liquid crystal molecule 1031 long optical axis directions on, refractive index that light passes through is very approaching, the scattering effect of the liquid crystal molecule 1031 during twisted state can weaken thereupon thus; Strong astigmatic phenomenon can not appear in the mixolimnion 103 that has added dyestuff; But dye molecule 1033 a large amount of light that absorb certain wavelength coverage, the coloured filter of image-tape is the same, makes pixel demonstrate unambiguous colored state.Certainly, above-mentioned mixolimnion 103 of sneaking into dyestuff is realized " multistable " characteristic through additive equally.
The present invention has the following advantages:
1, owing to is applied to the electric signal on each strip shaped electric poles through control; The smectic phase liquid crystal molecule can demonstrate different arrangement form; Thereby each pixel of LCDs can be changed between vaporific and full clear state; Even between the multiple progressive state of different gray, switch, setting off down at the black backboard, display screen demonstrates the black and white state.Transmittance when LCD MODULE is in the bright state of full impregnated can arrive more than 80%, and the astigmatism property when being in vaporific scattering state is very stable, and photoconductive layer does not influence the transmitance of scattered beam, sets off down at backboard, and the contrast of display degree is strong.
2, because LCDs adopts the smectic phase liquid crystal to process, and the additive that mixes in it has conductive characteristic, so after removing electric signal, the show state that display screen produces in the time of still keeping on-load voltage has well " multistable " characteristic.And because this " multistable " characteristic, working current required for the present invention is little, only when changing the moment of Liquid Crystal Molecules Alignment form, just need power up, and energy consumption is low.And because should " multistable " characteristic, the present invention almost have electromagnetic radiation, and smectic phase liquid crystal material itself just do not have any toxic action, so health environment-friendly of the present invention.
3, the switching time between the bright state of vaporific scattering and full impregnated very short, be generally several to dozens of milliseconds, if between the multiple progressive state of different gray, switch, then switch speed is faster.
4, if be mixed with dichroic dye in the LCD MODULE, then display screen can demonstrate versicolor pattern or literal, has very strong aesthetic property.
5, because the present invention adopts photoconductive layer that side emission light is almost all injected LCD MODULE, the light source utilization factor is high, has greatly improved the black and white or the colour contrast of display screen.
6, because the photoconductive layer dip plane has certain angle; The light that makes the vertical bank face penetrate is more; Be that the contrast of display screen on the angle of vertical bank face is best,, hang on the display screen of outdoor column eminence like conduct so can display applications of the present invention be shown in eminence; The beholder comes back just can see displaying contents, and the content of just looking at is very clearly.
The present invention is all applicable under the strong and weak environment of light, and under the high light environment, can not open lighting source.The present invention can be used as traffic indicated number device, open air or military open-air display device.
Claims (8)
1. LCDs, it is characterized in that: it comprises LCD MODULE, the front side of this LCD MODULE is provided with the photoconductive layer of the wedge-type shape that the top is wide, the bottom is narrow, above this LCD MODULE and photoconductive layer, is provided with lighting source, wherein:
This LCD MODULE comprises first base layer and second base layer; Centre at this first base layer and second base layer is provided with a mixolimnion; This mixolimnion is formed by smectic phase liquid crystal and additives mixed; This smectic phase liquid crystal for the band siloxy compound, four cyano four octyl group biphenyl or tetraacethyl ester in last of the ten Heavenly stems four cyano biphenyl in any; This additive is a cetyltriethylammonium bromide, is provided with first conductive electrode layer at first base layer towards a side of mixolimnion, is provided with second conductive electrode layer at second base layer towards a side of mixolimnion; First conductive electrode layer is made up of M strip shaped electric poles that is arranged in parallel; Second conductive electrode layer is made up of the strip shaped electric poles that N is arranged in parallel, and N strip shaped electric poles of the M of first conductive electrode layer strip shaped electric poles and second conductive electrode layer be quadrature mutually, so that this first conductive electrode layer and second conductive electrode layer form the pixel array of one M * N.
2. LCDs according to claim 1 is characterized in that:
Said first base layer and second base layer are glass, and perhaps said first base layer and second base layer are plastics, and perhaps in first base layer and second base layer is a glass, and another is plastics.
3. LCDs according to claim 1 is characterized in that:
The thickness of said mixolimnion is 2 microns～30 microns, the consisting of of said mixolimnion: said smectic phase liquid crystal accounts for and mixes 90%～99.999% of general assembly (TW), and said additive accounts for and mixes 0.001%～10% of general assembly (TW).
4. LCDs according to claim 1 is characterized in that:
Said mixolimnion also is mixed with dichroic dye.
5. LCDs according to claim 1 is characterized in that:
The rear side of said LCD MODULE is provided with backboard.
6. LCDs according to claim 1 is characterized in that:
The top of said lighting source is provided with the arc cover, and the inside surface of this arc cover is coated with highly reflecting films, and said lighting source is light emitting diode or cold fluorescent light.
7. LCDs according to claim 1 is characterized in that:
It is suitable that required angle takes place to launch entirely in photoconductive layer for pitch angle, said photoconductive layer bottom and incident light.
8. LCDs according to claim 7 is characterized in that:
The outside, dip plane of said photoconductive layer is provided with antireflection film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810105398XA CN101571652B (en) | 2008-04-28 | 2008-04-28 | Liquid crystal display screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810105398XA CN101571652B (en) | 2008-04-28 | 2008-04-28 | Liquid crystal display screen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101571652A CN101571652A (en) | 2009-11-04 |
| CN101571652B true CN101571652B (en) | 2012-07-04 |
Family
ID=41231039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810105398XA Expired - Fee Related CN101571652B (en) | 2008-04-28 | 2008-04-28 | Liquid crystal display screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101571652B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102466913A (en) * | 2010-11-02 | 2012-05-23 | 苏州汉朗光电有限公司 | Smectic state liquid crystal dyeing color display device |
| CN102466914B (en) * | 2010-11-02 | 2015-05-20 | 苏州汉朗光电有限公司 | Smectic state liquid crystal color display |
| CN102778776B (en) * | 2011-05-13 | 2014-12-17 | 苏州汉朗光电有限公司 | Optical coating type smectic phase liquid crystal display |
| CN105158960B (en) * | 2015-07-24 | 2018-06-29 | 深圳市华星光电技术有限公司 | A kind of production method of liquid crystal display panel and polaroid |
| CN106908982A (en) * | 2017-05-10 | 2017-06-30 | 京东方科技集团股份有限公司 | A kind of preparation method of liquid crystal panel, liquid crystal panel and its driving method |
| CN108109540A (en) * | 2018-02-07 | 2018-06-01 | 东龙顺（北京）科贸有限公司 | A kind of advertising display screen for building |
| CN109379546B (en) * | 2018-12-03 | 2020-06-16 | 惠州市华星光电技术有限公司 | Display device |
| CN114721209B (en) * | 2022-04-27 | 2023-06-27 | 业成科技（成都）有限公司 | Projection display device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1195119A (en) * | 1997-03-28 | 1998-10-07 | 夏普株式会社 | Front illumination device and reflection-type liquid crystal display device incorporating same |
| CN1539677A (en) * | 2003-10-27 | 2004-10-27 | 张国敏 | Rearview mirror with light being adjusted by liquid crystal display automatically |
| CN1678948A (en) * | 2002-03-27 | 2005-10-05 | 艾利丹尼森公司 | Switchable electro-optical laminates |
| CN101059607A (en) * | 2006-04-17 | 2007-10-24 | 孙刚 | Electrically-controlled liquid crystal light modulation glass and film |
-
2008
- 2008-04-28 CN CN200810105398XA patent/CN101571652B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1195119A (en) * | 1997-03-28 | 1998-10-07 | 夏普株式会社 | Front illumination device and reflection-type liquid crystal display device incorporating same |
| CN1678948A (en) * | 2002-03-27 | 2005-10-05 | 艾利丹尼森公司 | Switchable electro-optical laminates |
| CN1539677A (en) * | 2003-10-27 | 2004-10-27 | 张国敏 | Rearview mirror with light being adjusted by liquid crystal display automatically |
| CN101059607A (en) * | 2006-04-17 | 2007-10-24 | 孙刚 | Electrically-controlled liquid crystal light modulation glass and film |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101571652A (en) | 2009-11-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101571652B (en) | Liquid crystal display screen | |
| CN101415280B (en) | Electric-controlled light-regulating medium | |
| US20110080553A1 (en) | Electrically controlled medium for modulating light | |
| CN104035232B (en) | A kind of display floater and display device | |
| CN101059607A (en) | Electrically-controlled liquid crystal light modulation glass and film | |
| CN101414065B (en) | Electric control light modulation automobile skylight | |
| CN101916009A (en) | Smectic-state liquid crystal display | |
| CN101283308A (en) | An image display apparatus | |
| CN101414064B (en) | Electric control light modulation automobile sun-shading board | |
| CN102778776B (en) | Optical coating type smectic phase liquid crystal display | |
| CN102466914B (en) | Smectic state liquid crystal color display | |
| CN205263429U (en) | Visual peep -proof liquid crystal display module under sunshine | |
| Huh et al. | Bistable light shutter using dye-doped cholesteric liquid crystals driven with crossed patterned electrodes | |
| CN102253527B (en) | Display panel of transflective transparent display and sub-pixel structure thereof | |
| CN101556399B (en) | Composite polarizing sheet and liquid crystal display comprising the same | |
| CN101470286B (en) | Smectic state LCD device | |
| CN101644845B (en) | Full-color reflection type smectic liquid crystal display device with high contrast | |
| CN108776404A (en) | Two-sided liquid crystal display panel, display with double faces | |
| CN101840085B (en) | Scanning driving method for smectic liquid crystal display screen | |
| CN101840086A (en) | Method for getting rid of smectic state LCD image traces | |
| CN102830522B (en) | High-brightness high-contrast smectic-phase liquid crystal display screen | |
| CN1627146A (en) | Edge electric field switch type liquid crystal display unit | |
| CN102466913A (en) | Smectic state liquid crystal dyeing color display device | |
| CN102830541A (en) | Liquid crystal display panel and liquid crystal display | |
| CN102778775A (en) | Dual-face display smectic phase liquid crystal color display |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ASS | Succession or assignment of patent right |
Owner name: DUAN LIUWEN Free format text: FORMER OWNER: HANLANG TECHNOLOGY ( BEIJING ) CO., LTD Effective date: 20091002 |
|
| C06 | Publication | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| PB01 | Publication | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20091002 Address after: Science and Technology Building 9, 2017 South Avenue, Beijing, Haidian District, Zhongguancun Applicant after: Duan Liuwen Address before: Science and Technology Building 9, 2017 South Avenue, Beijing, Haidian District, Zhongguancun Applicant before: Hanlang Technology (Beijing) Co.,Ltd. |
|
| ASS | Succession or assignment of patent right |
Owner name: SUZHOU HANLANG PHOTOELECTRIC CO., LTD. Free format text: FORMER OWNER: DUAN LIUWEN Effective date: 20100416 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 100081 2017, LIGONG SCIENCE BUILDING, NO.9, ZHONGGUANCUN SOUTH AVENUE, HAIDIAN DISTRICT, BEIJING CITY TO: 215123 A4-101, BIOLOGICAL NANO PARK, NO.218, XINGHU STREET, INDUSTRIAL PARK, SUZHOU CITY, JIANGSU PROVINCE |
|
| TA01 | Transfer of patent application right |
Effective date of registration: 20100416 Address after: Xinghu street Suzhou Industrial Park in Jiangsu province 215123 No. 218 BioBAY A4-101 Applicant after: HALATION PHOTONICS Corp. Address before: 100081, Zhongguancun science and technology building, 9 South Avenue, Beijing, Haidian District, 2017 Applicant before: Duan Liuwen |
|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Method for improving anti-static-discharge capability of LCD screen in mobile apparatus Effective date of registration: 20190603 Granted publication date: 20120704 Pledgee: Societe Generale Bank Co.,Ltd. Suzhou Branch Pledgor: HALATION PHOTONICS Corp. Registration number: 2019320010024 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20221201 Granted publication date: 20120704 Pledgee: Societe Generale Bank Co.,Ltd. Suzhou Branch Pledgor: HALATION PHOTONICS Corp. Registration number: 2019320010024 |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120704 |