CN201314990Y - Wide-angle lens and polarizing plate and LCD device using same - Google Patents
Wide-angle lens and polarizing plate and LCD device using same Download PDFInfo
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- CN201314990Y CN201314990Y CNU2008201574944U CN200820157494U CN201314990Y CN 201314990 Y CN201314990 Y CN 201314990Y CN U2008201574944 U CNU2008201574944 U CN U2008201574944U CN 200820157494 U CN200820157494 U CN 200820157494U CN 201314990 Y CN201314990 Y CN 201314990Y
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Abstract
Adhesive coatings are formed on polarizing plates on the surface of a TFT substrate and a CF substrate of LCDs which are arranged above and below a liquid crystal layer; a wide-angle lens of a scattering part with a plurality of types of images and patterns on the surface is adhered on the adhesive coatings; the scattering process of the light radiated from a backlight component has birefraction on the adhesive coatings and the scattering part of the wide-angle lens through the simple processing of the wide-angle lens when the manufacturing of a TFT-LCD panel and the like is finished, so as to magnify the scattering angle, and obtain effect with vivid picture quality through a display panel.
Description
Technical field
The utility model relates to diffusion and at random above or below the Polarizer that a kind of LCD especially is convenient to adopt at the LCD panel from the light of backlight illumination, and utilization can enlarge the wide viewing angle eyeglass of wide viewing angle and utilize the Polarizer and the liquid crystal indicator of this eyeglass.
Background technology
Liquid crystal indicator is as display, and it is low to have liquid crystal operating voltage and a power consumption; Driving circuit and peripheral circuit are fairly simple; And characteristic such as in light weight is widely used in various fields.This liquid crystal indicator is divided into light absorption type or type liquid crystal indicator at random and polarized light type liquid crystal indicators such as GH, PDLC, PST.Absorption-type or type liquid crystal indicator at random are that the visual angle is big, but contrast is little, and the polarized light type liquid crystal indicator is a good contrast, but the visual angle is little.
The reason that the polarized light type visual angle of liquid crystal display is little is to change through the phase change of the light of the liquid crystal monomer direction of illumination with light, and its reason is that rake angle is injected the light of Polarizer can not complete extinction through Polarizer the time.
In order to enlarge the visual angle, developed and switched IPS (In Plane Switch) pattern, homeotropic alignment (Vertical alignment) pattern, light path regulation technology and phase compensation technology or the like technology in compound zone (Multidomain) technology, the plate.Above-mentioned compound regional development and technology is that a pixel is divided into a plurality of zones, with different orientations, makes liquid crystal molecule in each zone the characteristic of pixel reach the mean value of each region characteristic that comprises at it and increase wide viewing angle.But, the engineering of arranging the orientation in each zone with different directions is more numerous and diverse, and can not control the orientation of two zone contacted warning part liquid crystal molecules, and this part has light leak, therefore will cover winding displacement with photomask (Black Matrix) or thin film transistor (TFT).If but being suitable for compound regional development and technology, the characteristic in the visual field shows mean value in all directions, therefore has the effect of improvement on the relatively poor direction of visual field characteristic, but in visual field characteristic preferably on the direction, the problem that exists its image quality to reduce relatively.
Above-mentioned in-plane switching mode is meant the electric field that applies horizontal direction, makes in the parallel plane that is oriented in alignment films of liquid crystal to twist, so that increase the pattern of wide viewing angle.Because its visual angle is wider, therefore be widely used in the tyrode crystal display, but have low aperture opening ratio, slower releasing can time and relative high problems such as driving voltage.
And in the above-mentioned vertical alignment, use agent of vertical trend and negative liquid crystal and polarizer to increase the visual angle.Owing to fundamentally be suitable for above-mentioned compound regional development and technology, therefore have same problem.
Above-mentioned light path regulation technology is, makes the light of backlight emission vertically pass through liquid crystal panel, and through the disseminating to all directions of Polarizer, to guarantee wide viewing angle.For the light through Polarizer is disseminated to all directions, also use the Spectra view film of AlliedSignal company, but the transmission time is absorbed the problem that exists transmissivity to reduce.But in contrast, the degree of disseminating that the different diffraction grating of refractive index is regulated light is set between the Polarizer of employing and the liquid crystal monomer, but effective the reduction, therefore most of research is interrupted.
In addition, above-mentioned phase compensation technology is to use wide viewing angle compensation film to compensate the technology of the phase differential that changes according to the direction of light through liquid crystal monomer, its thickness that forms each film of compensation film is to form with unsymmetric structure, so difference of expanding with heat and contract with cold of each film, and there is stress difference between each interface, causes the variation of optical axis and Rf value and the problem of spot takes place.
Simultaneously, its purpose is to provide this type of problem technology of solution, and is applicable to the backlight assembly of Korean Patent the 662621st.Provide to be positioned at light guide plate top, have the light harvesting effect so that produce the light that light guide plate is sent, and provide the light that light guide plate is sent to have the diffusion part of light harvesting or diffusion; The prismatic lens of the light of above-mentioned diffusion to the prism portion of display panel direction light harvesting.But because its complex structure, and there is the problem that needs through numerous and diverse technology.To liquid crystal panel side light harvesting, if therefore surpass certain visual angle, then the feint problem of the image that passes through display pannel of side or upper and lower sides is avoidable after light harvesting or diffusion.
The utility model content
Technical matters of the present utility model is that a kind of simple engineering by bonding wide viewing angle eyeglass will be provided, the Polarizer and the liquid crystal indicator that obtain having the wide viewing angle eyeglass of distinct image quality effect and utilize the wide viewing angle eyeglass.
In order to solve above technical matters, the utility model provides a kind of wide viewing angle eyeglass, the wide viewing angle eyeglass is to be equipped with TFT substrate and CF substrate separately at liquid crystal layer top and the bottom face, each have on described TFT substrate and the CF substrate surface in the TFT-LCD panel liquid crystal display device of Polarizer, the Polarizer of described TFT substrate and CF substrate, a Polarizer or each Polarizer form adhesive coating therein, and have the wide viewing angle eyeglass of portion at random on the adhesive coating surface, and both are in conjunction with constituting the wide viewing angle eyeglass.
The ranges of indices of refraction that described wide viewing angle eyeglass is a light forms with epoxy resin 1.2～1.6, and the refractive index difference that comprises wide viewing angle eyeglass and adhesive coating is more than ± 0.05.
Formation is arranged continuously with the form in circular-arc mountain peak and gully by described portion at random.
Formation is arranged continuously with the shape on mountain by described portion at random.
Described portion at random comprises having the outstanding formation of trapezoidal shape, and arranges formation continuously with the trapezoidal shape tool line part at regular intervals of adjacency.
Described portion at random has that the rectangular triangle shape is outstanding to be formed, and and the rectangular triangle of adjacency between tool line part at regular intervals arrange formation continuously.
The length of described portion at random is limited in the 80 μ m by wavelength X.
Have among at random of pattern of described chevron, trapezoidal or straight triangular form shape, its corner degree is in 20 °～60 ° scopes.
The bonding agent that described adhesive coating adopts is a transparent material, and the low refraction bonding agent of the refractive index of light in 1.2～1.5 scopes, or the high refractive index adhesives of optical index in 1.5～1.7 scopes, and light, the described Polarizer of transmission and the adhesive coating generation double refraction of backlight assembly irradiation.
Described low-refraction bonding agent is silicon resin adhesive or soluble fluoro-resin, polyamide, polyester, polycarbonate, polyamidoimide, polyethers alum PES, gathers alum, polyphenylene oxide PPO, polyetherimide, polyoxymethylene, polyvinyl alcohol (PVA), ethylene-vinyl alcohol copolymer, a kind of making in the epoxy modifying polyethylene, and as cementing agent, mix the silicon dioxide of use low-refraction or the nano particle bonding agent of fluororesin with acryl resin.
Described high refractive index adhesives is the high ITO of blended refractive index in acryl resin, ATO, SnO
2, ZrO
2In the nano particle of one or both oxidized metal things.
In the adhesive coating that described TFT substrate upper side or CF substrate bottom surfaces and Polarizer lateral surface form, at random of wide viewing angle eyeglass joined with adhesive coating and is bonding, makes the bonding agent of adhesive coating fill at random and forms the space.
Make the portion at random of above-mentioned wide viewing angle eyeglass arrange also bonding towards the Polarizer outside of TFT substrate or CF substrate.
Troubling layer is selected to be suitable in the described wide viewing angle eyeglass outside.
Be bonded in the Polarizer of described TFT B.B.P face or CF substrate upper side, at random the direction relative with Polarizer, bonding with adhesive coating and wide viewing angle eyeglass, transparent filler is filled in the space of portion at random, and filler top is adhesive coating, and its adhesive coating and Polarizer are bonding, form troubling layer in wide viewing angle eyeglass bottom surface.
Coating filler on the adhesive coating that the Polarizer of described TFT substrate bottom surfaces or CF substrate upper side forms, portion at random is bonding with the direction and the wide viewing angle eyeglass of Polarizer contact, filler is filled in the space of portion at random, and forms adhesive coating on filler top, forms troubling layer on its adhesive coating top.
The refractive index of the refractive index ratio wide viewing angle eyeglass of described filler differs ± more than 0.05.
A kind of Polarizer that utilizes the wide viewing angle eyeglass, respectively be furnished with TFT substrate and CF substrate at liquid crystal layer top and the bottom face, described each TFT substrate and CF substrate surface each have in the TFT-LCD panel liquid crystal display of Polarizer, the bonding agent that the bonding Polarizer of coating is arranged on TFT substrate and CF substrate, on the Polarizer bonding agent, form polarizing layer, its above polarizing layer by the bonding aforesaid a kind of wide viewing angle eyeglass of adhesive coating.
The outermost side of described Polarizer selects to be suitable for and to form troubling layer or protective film.
Form troubling layer in described Polarizer outermost surface, on above-mentioned troubling layer, protective film is arranged.
A kind of liquid crystal indicator, liquid crystal layer top and bottom respectively are equipped with TFT substrate and CF substrate, each have Polarizer at described TFT substrate and CF substrate surface, have the described Polarizer surface of the TFT-LCD panel of structure like this, are suitable for aforesaid a kind of wide viewing angle eyeglass.
A kind of liquid crystal indicator, liquid crystal layer top and bottom respectively are equipped with TFT substrate and CF substrate, each have having of aforesaid Polarizer structure like this and form the TFT-LCD panel at described TFT substrate and CF substrate surface.
Superior effect of the present utility model is: the top and bottom of the Polarizer that adopts in the TFT-LCD liquid crystal indicator are suitable for the wide viewing angle eyeglass, under the state of TFT-LCD panel panel that completes, simple engineering by bonding wide viewing angle eyeglass, make from the process at random of the light of backlight assembly irradiation and carry out double or triple refractions in the portion at random of bonding coat and light visual angle eyeglass, enlarge angle at random, obtained having the effect of distinct image quality by display pannel.
Description of drawings
Fig. 1 is the sectional drawing that is suitable for TFT-LCD panel of the present utility model;
Fig. 2 to Fig. 5 is the sectional drawing that is applicable to the magnifying state of wide viewing angle eyeglass of the present utility model;
Fig. 6 to Fig. 9 is bonded in the wide viewing angle eyeglass to be positioned at Polarizer surface above the CF substrate, and the portion at random of wide viewing angle eyeglass is the Polarizer side towards the CF substrate, the amplification profile diagram that contacts each example bonding with adhesive coating;
Figure 10 to Figure 13 is when showing on the Polarizer surface be positioned at the TFT substrate bottom surface bonding wide viewing angle eyeglass, the amplification profile diagram in the portion at random of wide viewing angle eyeglass towards bonding each stateful example of TFT substrate-side;
Figure 14 is bonded in the amplification profile diagram that forms troubling layer above the wide viewing angle eyeglass of CF substrate Polarizer side;
Figure 15 is the amplification profile diagram that is bonded in the wide viewing angle eyeglass bottom surface formation troubling layer of TFT substrate bottom surface Polarizer side;
Figure 16 is a coating filler on the surface of wide viewing angle eyeglass bonding above the CF substrate Polarizer, makes on the space of wide viewing angle eyeglass and fills up filler, possesses the amplification displayed map of protective film section in the above;
Figure 17 coats filler on the bonding wide viewing angle lens surface of TFT substrate bottom surface Polarizer, makes the space of wide viewing angle eyeglass fill up filler, and the section that possesses protective film in its bottom surface amplifies displayed map.
Figure 18 to Figure 20 is the section displayed map that is suitable for each Polarizer mechanism of wide viewing angle eyeglass.
The number in the figure explanation
100-TFT-LCD panel; 110-TFT substrate;
111-Polarizer; 112-adhesive plate;
113-pixel electrode; 120-liquid crystal layer;
130-CF substrate; 131-Polarizer;
132-colored filter; 133-black matrix;
134-common electrode; 140-adhesive coating;
150-wide viewing angle eyeglass; 151-portion at random;
152-line part; 153-space;
160-troubling layer; 170-filler;
180-protective film; 200-backlight assembly.
Embodiment
The utility model especially is applicable to Polarizer upper side or bottom faces or only bonding being applicable to wherein simultaneously the wide viewing angle eyeglass is simultaneously bonding in LCD in the LCD structure that the TFT-LCD panel adopts, and possess at the wide viewing angle lens surface with the various angles image from the backlight illumination to light at random, and be provided at the refractive index and the wide viewing angle eyeglass structure combining of its inboard bonding agent that adopts.As shown in the figure, provide bonding structure on the Polarizer of TFT substrate that constitutes TFT-LCD panel basic structure and CF substrate surface with wide viewing angle eyeglass of multiple shape pattern.
The utility model provides a kind of wide viewing angle eyeglass, the wide viewing angle eyeglass is to be equipped with TFT substrate 110 and CF substrate 130 separately at liquid crystal layer 120 top and the bottom faces, each have on described TFT substrate 110 and CF substrate 130 surfaces in the TFT-LCD panel liquid crystal display device of Polarizer 111,131, the Polarizer 111,131 of described TFT substrate 110 and CF substrate 130, therein Polarizer 111 131 or each Polarizer 111,131 form adhesive coatings 140, and the wide viewing angle eyeglass 150 that has at random 151 on adhesive coating 140 surfaces, both are in conjunction with constituting the wide viewing angle eyeglass.
The refractive index RI scope that described wide viewing angle eyeglass 150 is a light forms with epoxy resin 1.2～1.6, and the refractive index RI difference that comprises wide viewing angle eyeglass 150 and adhesive coating 140 is more than ± 0.05.
Described at random 151 is to arrange formation continuously with the form in circular-arc mountain peak and gully.
Described at random 151 is to arrange formation continuously with the shape on mountain.
Described at random 151 comprises having the outstanding formation of trapezoidal shape, and arranges formation continuously with the trapezoidal shape tool of adjacency line part 152 at regular intervals.
Described at random 151 has that the rectangular triangle shape is outstanding to be formed, and and the rectangular triangle of adjacency between tool line part 152 at regular intervals arrange formation continuously.
Described at random 151 length is limited in the 80 μ m by wavelength X.
Have among at random 151 of pattern of described chevron, trapezoidal or straight triangular form shape, its corner degree is in 20 °～60 ° scopes.
The bonding agent that described adhesive coating 140 adopts is a transparent material, and the low refraction bonding agent of the refractive index RI of light in 1.2～1.5 scopes, or the high refractive index adhesives of optical index RI in 1.5～1.7 scopes, and the light of backlight assembly 200 irradiations, double refraction takes place in described Polarizer 111,131 of transmission and adhesive coating 140.
Described low-refraction bonding agent is silicon resin adhesive or soluble fluoro-resin, polyamide, polyester, polycarbonate, polyamidoimide, polyethers alum PES, gathers alum, polyphenylene oxide PPO, polyetherimide, polyoxymethylene, polyvinyl alcohol (PVA), ethylene-vinyl alcohol copolymer, a kind of making in the epoxy modifying polyethylene, and as cementing agent, mix the silicon dioxide of use low-refraction or the nano particle bonding agent of fluororesin with acryl resin.
Described high refractive index adhesives is the high ITO of blended refractive index in acryl resin, ATO, SnO
2, ZrO
2In the nano particle of one or both oxidized metal things.
In the adhesive coating 140 that described TFT substrate 110 upper side or CF substrate 130 bottom surfaces and Polarizer 111,131 lateral surfaces form, at random 151 of wide viewing angle eyeglass 150 joins with adhesive coating 140 and bonding, the bonding agent of adhesive coating 140 is filled form space 153 at random 151.
Make at random 151 Polarizer 111,131 outsides of above-mentioned wide viewing angle eyeglass 150 arrange also bonding towards TFT substrate 110 or CF substrate 130.
Be bonded in the Polarizer 111,131 of described TFT substrate 110 bottom faces or CF substrate 130 upper side, at random 151 direction relative with Polarizer 111,131, bonding with adhesive coating 140 and wide viewing angle eyeglass 150, transparent filler 170 is filled at random 151 space 153, and filler 170 tops are adhesive coating 140, and its adhesive coating 140 is bonding with Polarizer 111,131, forms troubling layer 160 in wide viewing angle eyeglass 150 bottom surfaces.
The refractive index RI of described filler 170 than the refractive index RI of wide viewing angle eyeglass 150 differ ± more than 0.05.
A kind of Polarizer that utilizes the wide viewing angle eyeglass, respectively be furnished with TFT substrate 110 and CF substrate 130 at liquid crystal layer 120 top and the bottom faces, described each TFT substrate 110 and CF substrate 130 surfaces each have in the TFT-LCD panel liquid crystal display of Polarizer 111,131, the bonding agent 131a that the bonding Polarizer of coating is arranged on TFT substrate 110 and CF substrate 130, on Polarizer bonding agent 131a, form polarizing layer 131b, on its polarizing layer 131b by the bonding aforesaid a kind of wide viewing angle eyeglass of adhesive coating.
The outermost side of described Polarizer 111,131 selects to be suitable for and to form troubling layer 160 or protective film 180.
Form troubling layer 160 in described Polarizer outermost surface, on above-mentioned troubling layer 160, protective film 180 is arranged.
A kind of liquid crystal indicator, liquid crystal layer 120 top and bottom respectively are equipped with TFT substrate 110 and CF substrate 130, each have Polarizer 111,131 at described TFT substrate 110 and CF substrate 130 surfaces, described Polarizer surface with TFT-LCD panel of structure like this is suitable for aforesaid a kind of wide viewing angle eyeglass.
A kind of liquid crystal indicator, liquid crystal layer 120 top and bottom respectively are equipped with TFT substrate 110 and CF substrate 130, each have having of aforesaid Polarizer structure like this and form the TFT-LCD panel at described TFT substrate 110 and CF substrate 130 surfaces.
As shown in drawings, the utility model is made row to be explained, in LCD (to call the TFT-LCD panel in the following text) structure, provide in order to enlarge angle at random the structure of bonding wide viewing angle eyeglass 150 on the common Polarizer that adopts 111,131 with everybody structure in common knowledge
TFT-LCD panel 100 manufacture processes are to adopt by everybody process in common knowledge, and for example the manufacturing process of TFT-LCD panel is to be divided into TFT engineering, colorized optical filtering (CF) engineering, monomer engineering, modular engineering substantially to carry out.2 glass plates with through TFT engineering and CF engineering carry out the monomer engineering, make a panel.Panel through the monomer engineering is made into a TFT-LCD panel that is actually used in display or TV through modular engineering again.
At first, the TFT engineering is the engineering that (Thin Film Transistor, thin film transistor (TFT)) forms primary electrode, is the engineering of the most basic and core, is the engineering of making the electrode of each monomer.The order of its engineering is the generation of generation, dielectric film and the semiconductor film of gate electrode, the generation of data electrode, 5 stages such as generation of pixel electrode, and each stage needs the pattern engineering more than 1 time.Wherein the pattern engineering is the core of TFT-LCD panel manufacturing engineering, and not only in the TFT engineering, and in the CF engineering, also need similar pattern engineering.
Then, colored filter CF (COLOR FILTER) engineering is with black matrix B M (BlackMatrix) engineering, need adhere to successively, washing, PR engineering, exposure, video picture, etching, pattern engineering, each pixel engineering and indium tin oxide target ITO engineering (Indum TinOxide) such as peel off and form.
As mentioned above, as shown in Figure 1, form liquid crystal layer 120 between the TFT substrate 110 of TFT-LCD panel 100 and the CF substrate 130, possess Polarizer 111,131 separately, finish a series of engineerings of TFT-LCD panel 100 at TFT substrate 110 and CF substrate 130 surfaces.
The utility model is that the bonding wide viewing angle eyeglass 150 of the superficial layer of each autoadhesion Polarizer 111,131 is reached its purpose by on the above-mentioned TFT substrate 110 and CF substrate 130 that so everybody process in common knowledge obtains.
At this, above-mentioned wide viewing angle eyeglass 150 is to make with epoxy resin, adopt from the refractive index RI scope of the light of backlight assembly 200 irradiation at 1.2～1.6 epoxy resin wide viewing angle eyeglass 150.
In addition, form at random 151 of light at random at the superficial layer of above-mentioned wide viewing angle eyeglass 150.
At random 151 is as shown in Fig. 2 to Fig. 5, can form the pattern of multiple shape and apperance.Do at random 151 the shape that pattern is handled on wide viewing angle eyeglass 150 surfaces as Fig. 2, not only be arranged in the form in mountain peak and gully continuously with circular shape, also with as shown in Figures 4 and 5, in echelon, or the pattern of rectangular triangle shape.
Among Fig. 4 at random 151 forms trapezoidal at random 151 in order to keep in addition, is separated by with same spacing, forms line part 152 and arrangement continuously.Also forming the line part 152 of being separated by with a determining deviation between join at random 151 of among Fig. 5 at random 151 and right-angle triangle arranges continuously.
So line part 152 is meant from the light of the backlight assembly 200 irradiation line transmission zone with line transmission.
Simultaneously, each at random 151 length lambda should be controlled at 80 μ m with interior length among Fig. 2 to Fig. 5, and Fig. 3 to Fig. 5 has among chevron, trapezoidal or rectangular triangle pattern at random 151, with the angle θ that the limit forms could be effectively within 20 °～60 °.
Simultaneously, utilize wide viewing angle eyeglass 150 with at random 151 in multiple shape like this and apperance pattern, can obtain with above-mentioned each Polarizer 111,131 in the adhesive coating that forms with bonding agent 140 is bonding finishes.
At this, the lateral surface of Polarizer 131 that above-mentioned Polarizer 111,131 promptly has in TFT substrate 110 bottom surfaces and the Polarizer 131 that has above the CF substrate 130, each autoadhesion has above-mentioned at random 151 wide viewing angle eyeglass 150, maybe can adopt Polarizer 111,131 bonding above-mentioned wide viewing angle eyeglasses 150 arbitrarily.
That is, Fig. 6 to Figure 13 is, in the enlarged section displayed map of above-mentioned TFT substrate 110 bottom surfaces and suitable wide viewing angle eyeglass 150 states that one of them pattern forms in above-mentioned at random 151 of each self application in CF substrate 130 upper side.For example form under the state of adhesive coating 140 and settle and bonding wide viewing angle eyeglass 150 at above-mentioned TFT substrate 110 or above the CF substrate 130.
At this moment, the bonding agent that above-mentioned adhesive coating 140 adopts will be used transparent material, and will use its optical index RI not exceed the bonding agent of above-mentioned wide viewing angle eyeglass 150 optical index RI scopes, should be designed to produce the structure of double refraction phenomenon.
For example, when using the wide viewing angle eyeglass 150 of aforesaid epoxide resin material, the refractive index RI that considers light is within 1.2～1.6 scopes, therefore should use optical index RI refractive index materials within 1.2～1.5 scopes and 1.5～1.7 scopes of adhesive coating 140, make the light of the light source irradiation of backlight assembly 200, when Polarizer 111,131 transmissions, should guarantee wide viewing angle according to double refraction.
At this, the scope of above-mentioned bonding agent refractive index (RI) is at 1.2～1.5 title low-refraction bonding agent, the title high refractive index adhesives with 1.5～1.7 scope refractive indexes.
Low-refraction bonding agent one of in the bonding agent kind of above-mentioned each refractive index RI scope has silicon resin adhesive or soluble fluoro-resin, polyamide, polyester, polycarbonate, polyamidoimide, polyethers alum PES, poly-alum, polyphenylene oxide PPO, polyetherimide, polyoxymethylene, polyvinyl alcohol (PVA), ethylene-vinyl alcohol copolymer, one of them in the epoxy modifying polyethylene made, and as cementing agent, can mix the silicon dioxide that uses low-refraction or the nano particle of fluororesin with acryl resin.
At this, as high refractive index adhesives, nano particle that can the oxidized metal thing that blended refractive index is high in acryl resin, and above-mentioned oxidized metal can be ITO, ATO, SnO
2, ZrO
2In one.
In addition, forming under the state of adhesive coating 140 with above-mentioned bonding agent on the above-mentioned Polarizer 111,131, during bonding wide viewing angle eyeglass 150, can carry out multiple conversion its example.
For example, form under the state of adhesive coating 140 in Polarizer 111,131 outsides of above-mentioned TFT substrate 110 bottom faces or CF substrate 130 upper side, at random 151 of wide viewing angle eyeglass 150 contacts also bonding with adhesive coating 140, or in contrast, make at random 151 of wide viewing angle eyeglass 150 bonding therewith towards the outside.
So, when contact is also bonding between at random 151 of adhesive coating 140 and wide viewing angle eyeglass 150, form the state that bonding agent fills up above-mentioned at random 151 space 153.
At this moment, from each Polarizer of the transmittance TFT-LCD panel 100 of backlight assembly 200 light source irradiation 111,131 o'clock, after 1 refraction takes place in above-mentioned adhesive coating 140, by 2 refractions taking place, to guarantee wider wide viewing angle scope with at random 151 of the bonding wide viewing angle eyeglass 150 of Polarizer 111,131.
In addition, as mentioned above, wide viewing angle eyeglass 150 upper side that are positioned at CF substrate 130 Polarizers 131 upper side select to be suitable for troubling layer 160, as shown in figure 14, or as shown in figure 15, also can select to be suitable for troubling layer 160 in the bottom of the wide viewing angle eyeglass 150 that is positioned at TFT substrate 110 Polarizers 111 bottoms.
Figure 16 to Figure 17 is different with said structure; the Polarizer 111 of CF substrate 130 or TFT substrate 110; behind 131 the outermost coating adhesive coating 140; under bonding state with multiple at random 151 wide viewing angle eyeglass 150 on its adhesive coating 140; form the filler 170 of transparent material in the upper side of above-mentioned wide viewing angle eyeglass 150; and it is bonding with this and protective film; as shown in figure 16; at this moment; relative the direction of 150 at random 151 on each wide viewing angle eyeglass with above-mentioned filler 170, make above-mentioned filler 170 can be filled into space 153 by at random 151 each wide viewing angle eyeglass 170 that forms.
The filler 170 of this moment also takes place by filler 170, to reflect once more once more under the birefracting state through wide viewing angle eyeglass 150 and adhesive coating 140.The filler 170 that adopt this moment is to constitute with transparent material, and the refractive index RI that makes filler 170 than the refractive index RI of wide viewing angle eyeglass 150 differ ± more than 0.05, make 3 refractions take place on the whole, no matter so that in the place ahead of TFT-LCD panel, left and right side and above-below direction can both embody distinct image quality.
In addition, as shown in Figure 18 to 20, the structure of the Polarizer 111,131 that is suitable in convertible the utility model.For example, as shown in figure 18, behind CF substrate 130 top coating Polarizer bonding agent 131a, after the polarizing layer of processing 131b is arranged on Polarizer bonding agent 131a, on above-mentioned polarizing layer 131b upper side, can utilize adhesive coating 140 getable each wide viewing angle eyeglass 150 in bonding above-mentioned each example on polarizing layer 131b.In addition, in contrast, behind TFT substrate 110 bottom faces coating Polarizer bonding agent 131b, after there is the polarizing layer of processing 131b its Polarizer bonding agent 131a bottom surface, can utilize adhesive coating 140 getable each wide viewing angle eyeglass 150 in bonding above-mentioned each example of polarizing layer 131b bottom faces.
At this, the direction that above-mentioned wide viewing angle eyeglass 150 is bonding, promptly, can not only be bonded as at random 151 direction towards above or below, at random 151 direction is during towards the below, that is, and and when being bonded in Polarizer 111,131 directions, present the state that adhesive coating 140 is filled at random 151 space that takes place 153, multiple refraction effect takes place in the light that therefore light source irradiation of backlight assembly 200 can take place.
In addition, different therewith, as shown in figure 19, when above-mentioned wide viewing angle eyeglass 150 was bonded in Polarizer 131 outsides of above-mentioned CF substrate 130, the outermost of above-mentioned wide viewing angle eyeglass 150 was selected to be suitable for and bonding troubling layer 160 of multilayer or protective film 160.
And different therewith, as shown in figure 20, when above-mentioned wide viewing angle eyeglass 150 was bonded in Polarizer 131 lateral surfaces, after wide viewing angle eyeglass 150 outermost formed troubling layer 160, bonding in the above protective film 180 constituted.
Claims (22)
1, a kind of wide viewing angle eyeglass is characterized in that:
The wide viewing angle eyeglass is to be equipped with TFT substrate and CF substrate separately at liquid crystal layer top and the bottom face, each have on described TFT substrate and the CF substrate surface in the TFT-LCD panel liquid crystal display device of Polarizer, the Polarizer of described TFT substrate and CF substrate, a Polarizer or each Polarizer form adhesive coating therein, and the wide viewing angle eyeglass that has portion at random on the adhesive coating surface, both are in conjunction with constituting the wide viewing angle eyeglass.
2, by the described wide viewing angle eyeglass of claim 1, it is characterized in that:
The ranges of indices of refraction that described wide viewing angle eyeglass is a light forms with epoxy resin 1.2～1.6, and the refractive index difference that comprises wide viewing angle eyeglass and adhesive coating is more than ± 0.05.
3, by the described wide viewing angle eyeglass of claim 1, it is characterized in that:
Formation is arranged continuously with the form in circular-arc mountain peak and gully by described portion at random.
4, by the described wide viewing angle eyeglass of claim 1, it is characterized in that:
Formation is arranged continuously with the shape on mountain by described portion at random.
5, by the described wide viewing angle eyeglass of claim 1, it is characterized in that:
Described portion at random comprises having the outstanding formation of trapezoidal shape, and arranges formation continuously with the trapezoidal shape tool line part at regular intervals of adjacency.
6, by the described wide viewing angle eyeglass of claim 1, it is characterized in that:
Described portion at random has that the rectangular triangle shape is outstanding to be formed, and and the rectangular triangle of adjacency between tool line part at regular intervals arrange formation continuously.
7, by the described wide viewing angle eyeglass of claim 1, it is characterized in that:
The length of described portion at random is limited in the 80 μ m by wavelength X.
8, by claim 4 or 5 described wide viewing angle eyeglasses, it is characterized in that:
Have among at random of pattern of described chevron, trapezoidal or straight triangular form shape, its corner degree is in 20 °～60 ° scopes.
9, by the described wide viewing angle eyeglass of claim 1, it is characterized in that:
The bonding agent that described adhesive coating adopts is a transparent material, and the low refraction bonding agent of the refractive index of light in 1.2～1.5 scopes, or the high refractive index adhesives of optical index in 1.5～1.7 scopes, and light, the described Polarizer of transmission and the adhesive coating generation double refraction of backlight assembly irradiation.
10, by the described wide viewing angle eyeglass of claim 9, it is characterized in that:
Described low-refraction bonding agent is silicon resin adhesive or soluble fluoro-resin, polyamide, polyester, polycarbonate, polyamidoimide, polyethers alum PES, gathers alum, polyphenylene oxide PPO, polyetherimide, polyoxymethylene, polyvinyl alcohol (PVA), ethylene-vinyl alcohol copolymer, a kind of making in the epoxy modifying polyethylene, and as cementing agent, mix the silicon dioxide of use low-refraction or the nano particle bonding agent of fluororesin with acryl resin.
11, by the described wide viewing angle eyeglass of claim 9, it is characterized in that:
Described high refractive index adhesives is the high ITO of blended refractive index in acryl resin, ATO, SnO
2, ZrO
2In the nano particle of one or both oxidized metal things.
12, by the described wide viewing angle eyeglass of claim 1, it is characterized in that:
In the adhesive coating that described TFT substrate upper side or CF substrate bottom surfaces and Polarizer lateral surface form, at random of wide viewing angle eyeglass joined with adhesive coating and is bonding, makes the bonding agent of adhesive coating fill at random and forms the space.
13, by the described wide viewing angle eyeglass of claim 12, it is characterized in that:
Make the portion at random of above-mentioned wide viewing angle eyeglass arrange also bonding towards the Polarizer outside of TFT substrate or CF substrate.
14, by the described wide viewing angle eyeglass of claim 1, it is characterized in that:
Troubling layer is selected to be suitable in the described wide viewing angle eyeglass outside.
15, by the described wide viewing angle eyeglass of claim 1, it is characterized in that:
Be bonded in the Polarizer of described TFT B.B.P face or CF substrate upper side, at random the direction relative with Polarizer, bonding with adhesive coating and wide viewing angle eyeglass, transparent filler is filled in the space of portion at random, and filler top is adhesive coating, and its adhesive coating and Polarizer are bonding, form troubling layer in wide viewing angle eyeglass bottom surface.
16, by the described wide viewing angle eyeglass of claim 1, it is characterized in that:
Coating filler on the adhesive coating that the Polarizer of described TFT substrate bottom surfaces or CF substrate upper side forms, portion at random is bonding with the direction and the wide viewing angle eyeglass of Polarizer contact, filler is filled in the space of portion at random, and forms adhesive coating on filler top, forms troubling layer on its adhesive coating top.
17, by the described wide viewing angle eyeglass of claim 1, it is characterized in that:
The refractive index of the refractive index ratio wide viewing angle eyeglass of described filler differs ± more than 0.05.
18, a kind of Polarizer that utilizes the wide viewing angle eyeglass is characterized in that:
Respectively be furnished with TFT substrate and CF substrate at liquid crystal layer top and the bottom face, described each TFT substrate and CF substrate surface each have in the TFT-LCD panel liquid crystal display of Polarizer, the bonding agent that the bonding Polarizer of coating is arranged on TFT substrate and CF substrate, on the Polarizer bonding agent, form polarizing layer, its above polarizing layer by adhesive coating a kind of wide viewing angle eyeglass in the bonding aforesaid claim 1 to 17.
19, by the described Polarizer that utilizes the wide viewing angle eyeglass of claim 18, it is characterized in that:
The outermost side of described Polarizer selects to be suitable for and to form troubling layer or protective film.
20, by the described Polarizer that utilizes the wide viewing angle eyeglass of claim 18, it is characterized in that:
Form troubling layer in the Polarizer outermost surface, on above-mentioned troubling layer, protective film is arranged.
21, a kind of liquid crystal indicator is characterized in that:
The liquid crystal layer top and bottom respectively are equipped with TFT substrate and CF substrate, each have Polarizer at described TFT substrate and CF substrate surface, have the described Polarizer surface of the TFT-LCD panel of structure like this, are suitable for a kind of wide viewing angle eyeglass in the aforesaid claim 1 to 17.
22, a kind of liquid crystal indicator is characterized in that:
The liquid crystal layer top and bottom respectively are equipped with TFT substrate and CF substrate, each have having structure like this and forming the TFT-LCD panel of a Polarizer in the aforesaid claim 16 to 20 at described TFT substrate and CF substrate surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201574944U CN201314990Y (en) | 2008-12-19 | 2008-12-19 | Wide-angle lens and polarizing plate and LCD device using same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201574944U CN201314990Y (en) | 2008-12-19 | 2008-12-19 | Wide-angle lens and polarizing plate and LCD device using same |
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| Publication Number | Publication Date |
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| CN201314990Y true CN201314990Y (en) | 2009-09-23 |
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| CNU2008201574944U Expired - Fee Related CN201314990Y (en) | 2008-12-19 | 2008-12-19 | Wide-angle lens and polarizing plate and LCD device using same |
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