CN108885369A

CN108885369A - Polarization board group and the IPS mode LCD for having used the polarization board group

Info

Publication number: CN108885369A
Application number: CN201780021170.XA
Authority: CN
Inventors: 松本寿和
Original assignee: Sumitomo Chemical Co Ltd
Current assignee: Sumitomo Chemical Co Ltd
Priority date: 2016-03-31
Filing date: 2017-03-22
Publication date: 2018-11-23
Anticipated expiration: 2037-03-22
Also published as: KR20180124966A; KR102290943B1; CN108885369B

Abstract

A kind of polarization board group,With the IPS mode LCD for having used the polarization board group,It is the polarization board group even if the specific IPS mode liquid crystal cell that can also ensure that good visibility under the strong environment of extraneous light,With the IPS mode LCD for having used the polarization board group,The polarization board group includes visuognosis lateral deviation vibration plate (30,And back side polarization plates (50) 34),And it is bonded respectively with the two sides for the IPS mode liquid crystal cell (60) that phase difference value in face is 100nm~200nm,The visuognosis lateral deviation vibration plate (30,34) absorption axiss (5) of absorption axiss (1) and the back side polarization plates are substantially orthogonal,The visuognosis lateral deviation vibration plate (30,34) there is polarizing film (30) and the plate of λ/4 (34),The visuognosis lateral deviation vibration plate (30,34) angle formed by the slow axis (2) of absorption axiss (1) and the plate of the λ/4 (34) is substantially 45 °,The slow axis (2) of the plate of the λ/4 (34) is configured to the relationship substantially orthogonal relative to the initial orientation direction (3) of the IPS mode liquid crystal cell (60).

Description

Polarization board group and the IPS mode LCD for having used the polarization board group

Technical field

The present invention relates to polarization plates and the IPS mode LCDs of the polarization plates is used.

Background technique

In recent years, power consumption is low, run at low voltage, light weight and slim liquid crystal display are as mobile phone, shifting The information such as dynamic information terminal, the monitor of computer, TV are hastily popularized with display equipment.With liquid crystal technology Development, proposes the liquid crystal display of various mode, the liquid crystal display of response speed, contrast, narrow viewing angle etc Problem is gradually eliminated.

For mobile phone, mobile information terminal, with the chance increase in outdoor application, in exterior lights such as daylight In the case that line is strong, has in existing liquid crystal cells and the liquid crystal display device of existing polarization board group and extraneous light occur Reflection it is strong, the problem of liquid crystal panel is difficult to visuognosis.

As the countermeasure for this topic, usually in the surface of visuognosis lateral deviation vibration plate setting low reflection layer to reduce Extraneous light reflects or uses circularly polarizing plate in visuognosis lateral deviation vibration plate, thus reflects to implement to reduce extraneous light Countermeasure.

However, in the environment of the illumination of extraneous light is more than 5000lux, vision is distinguished if only leaning on above-mentioned low reflection layer Recognizing property significantly reduces.In addition, phase difference value is 250nm~380nm in usual face, it is difficult to be configured for IPS mode liquid crystal Circularly polarizing plate is as visuognosis lateral deviation vibration plate.

Existing technical literature

Patent document

Patent document 1：Japanese Unexamined Patent Publication 2005-128498 bulletin

Summary of the invention

Subject to be solved by the invention

The purpose of the present invention is to provide a kind of polarization board group of specific IPS mode liquid crystal cell and this is used The IPS mode LCD for polarizing board group, even if the polarization board group is in the environment that the illumination of extraneous light is more than 5000lux Under can also ensure that good visibility.

The method to solve the problem

In order to achieve the above objectives, as embodiment 1, the present invention provides [1] below~[6].

[1] a kind of polarization board group, for comprising visuognosis lateral deviation vibration plate and back side polarization plates, and for respectively with face Interior phase difference value is the polarization board group of the two sides fitting of the IPS mode liquid crystal cell of 100nm~200nm,

The absorption axiss of above-mentioned visuognosis lateral deviation vibration plate and the absorption axiss of above-mentioned back side polarization plates are substantially orthogonal,

Above-mentioned visuognosis lateral deviation vibration plate has polarizing film and the plate of λ/4,

Angle formed by the absorption axiss of above-mentioned visuognosis lateral deviation vibration plate and the slow axis of the plate of above-mentioned λ/4 is substantially 45 °,

The slow axis of the plate of above-mentioned λ/4 be configured to relative to above-mentioned IPS mode liquid crystal cell initial orientation direction substantially just The relationship of friendship.

[2] the polarization board group according to [1], wherein above-mentioned visuognosis lateral deviation vibration plate includes to be configured at above-mentioned liquid crystal Positive c plate between unit and the plate of above-mentioned λ/4.

[3] the polarization board group according to [1], wherein above-mentioned visuognosis lateral deviation vibration plate includes to be configured at above-mentioned vision Recognize the positive c plate between the polarizing film and the plate of above-mentioned λ/4 of lateral deviation vibration plate.

[4] the polarization board group according to [2] or [3], wherein

The phase difference value of the thickness direction of above-mentioned positive c plate is -50nm~-150nm.

[5] a kind of IPS mode LCD passes through the IPS mould that phase difference value is 100nm~200nm in face Polarization board group described in any one of formula liquid crystal cells configuration [1]~[4] forms.

[6] the IPS mode LCD according to [5], wherein the size of IPS mode LCD is Diagonal 15 inches or less.

In addition, the present invention provides [7] below~[12] as embodiment 2.

[7] a kind of polarization board group, for comprising visuognosis lateral deviation vibration plate and back side polarization plates, and for being bonded respectively Phase difference value is the polarization board group on the two sides of the IPS mode liquid crystal cell of 400nm~500nm in face,

The slow axis of the plate of above-mentioned λ/4 is configured to substantially flat relative to the initial orientation direction of above-mentioned IPS mode liquid crystal cell Capable relationship.

[8] the polarization board group according to [7], wherein above-mentioned visuognosis lateral deviation vibration plate includes to be configured at above-mentioned liquid crystal Positive c plate between unit and the plate of above-mentioned λ/4.

[9] the polarization board group according to [7], wherein above-mentioned visuognosis lateral deviation vibration plate includes to be configured at above-mentioned polarization Positive c plate between piece and the plate of above-mentioned λ/4.

[10] the polarization board group according to [8] or [9], wherein the phase difference value of the thickness direction of above-mentioned positive c plate be- 50nm~-150nm.

[11] a kind of IPS mode LCD passes through the IPS mould that phase difference value is 400nm~500nm in face Polarization board group described in any one of formula liquid crystal cells configuration [7]~[10] forms.

[12] the IPS mode LCD according to [11], wherein the size of IPS mode LCD It is diagonal 15 inches or less.

In addition, the present invention provides [13] below~[21] as embodiment 3.

[13] a kind of polarization board group, for comprising visuognosis lateral deviation vibration plate and back side polarization plates, and for pasting respectively The polarization board group on the two sides for the IPS mode liquid crystal cell that the phase difference value in face is 100nm~200nm is closed,

The absorption axiss of above-mentioned visuognosis lateral deviation vibration plate and the absorption axiss of above-mentioned back side polarization plates are substantially parallel,

Above-mentioned visuognosis lateral deviation vibration plate has the first polarizing film and the plate of λ/4,

The plate of above-mentioned λ/4 is configured between above-mentioned first polarizing film and above-mentioned liquid crystal cells,

Above-mentioned back side polarization plates have the second polarizing film and the plate of λ/2,

Angle formed by the absorption axiss of above-mentioned back side polarization plates and the slow axis of the plate of above-mentioned λ/2 is substantially 45 °,

The slow axis of the slow axis of the plate of above-mentioned λ/4 and the plate of above-mentioned λ/2 be it is substantially orthogonal,

[14] the polarization board group according to [13], wherein above-mentioned visuognosis lateral deviation vibration plate includes to be configured at above-mentioned liquid Positive c plate between brilliant unit and the plate of above-mentioned λ/4,

Above-mentioned back side polarization plates include the positive c plate being configured between above-mentioned liquid crystal cells and the plate of above-mentioned λ/2.

[15] the polarization board group according to [13], wherein above-mentioned visuognosis lateral deviation vibration plate includes to be configured at above-mentioned liquid Positive c plate between brilliant unit and the plate of above-mentioned λ/4,

Above-mentioned back side polarization plates include the positive c plate being configured between above-mentioned second polarizing film and the plate of above-mentioned λ/2.

[16] the polarization board group according to [13], wherein above-mentioned visuognosis lateral deviation vibration plate includes to be configured at above-mentioned the Positive c plate between one polarizing film and the plate of above-mentioned λ/4,

[17] the polarization board group according to [13], wherein above-mentioned visuognosis lateral deviation vibration plate includes to be configured at above-mentioned the Positive c plate between one polarizing film and the plate of above-mentioned λ/4,

[18] the polarization board group according to any one of [14]~[17], wherein above-mentioned visuognosis lateral deviation vibration plate institute The phase difference value of the thickness direction of positive c plate possessed by the positive c plate and above-mentioned back side polarization plates having is roughly equal.

[19] the polarization board group according to any one of [14]~[18], wherein the phase of the thickness direction of above-mentioned positive c plate Potential difference value is -50nm~-150nm.

[20] a kind of IPS mode LCD passes through the IPS mould that phase difference value is 100nm~200nm in face Polarization board group described in any one of formula liquid crystal cells configuration [13]~[19] forms.

[21] the IPS mode LCD according to [20], wherein the size of IPS mode LCD It is diagonal 15 inches or less.

In addition, the present invention provides [22] below~[30] as embodiment 4.

[22] a kind of polarization board group, for comprising visuognosis lateral deviation vibration plate and back side polarization plates, and for pasting respectively The polarization board group on the two sides for the IPS mode liquid crystal cell that the phase difference value in face is 400nm~500nm is closed,

[23] the polarization board group according to [22], wherein above-mentioned visuognosis lateral deviation vibration plate includes to be configured at above-mentioned liquid Positive c plate between brilliant unit and the plate of above-mentioned λ/4,

[24] the polarization board group according to [22], wherein above-mentioned visuognosis lateral deviation vibration plate includes to be configured at above-mentioned liquid Positive c plate between brilliant unit and the plate of above-mentioned λ/4,

[25] the polarization board group according to [22], wherein above-mentioned visuognosis lateral deviation vibration plate includes to be configured at above-mentioned the Positive c plate between one polarizing film and the plate of above-mentioned λ/4,

[26] the polarization board group according to [22], wherein above-mentioned visuognosis lateral deviation vibration plate includes to be configured at above-mentioned the Positive c plate between one polarizing film and the plate of above-mentioned λ/4,

[27] the polarization board group according to any one of [23]~[26], wherein above-mentioned visuognosis lateral deviation vibration plate institute The phase difference value of the thickness direction of positive c plate possessed by the positive c plate and above-mentioned back side polarization plates having is roughly equal.

[28] the polarization board group according to any one of [23]~[27], wherein the phase of the thickness direction of above-mentioned positive c plate Potential difference value is -50nm~-150nm.

[29] a kind of IPS mode LCD passes through the IPS mould that phase difference value is 400nm~500nm in face Polarization board group described in any one of formula liquid crystal cells configuration [22]~[28] forms.

[30] the IPS mode LCD according to [29], wherein the size of IPS mode LCD It is diagonal 15 inches or less.

Invention effect

Polarization board group according to the present invention, is capable of providing a kind of liquid crystal display device, which is able to suppress The reflection of extraneous light, even if also ensuring that good visibility under the strong environment of the extraneous light as outdoor.

Detailed description of the invention

Fig. 1 is the example for showing the preferred layer of polarization board group involved in embodiments of the present invention 1 and embodiment 2 and constituting The schematic section of son.

Fig. 2 is the example for showing the preferred layer of polarization board group involved in embodiments of the present invention 3 and embodiment 4 and constituting The schematic section of son.

Fig. 3 is the example for showing the preferred axis of IPS liquid crystal display device involved in embodiments of the present invention 1 and constituting Schematic diagram.

Fig. 4 is the example for showing the preferred axis of IPS liquid crystal display device involved in embodiments of the present invention 2 and constituting Schematic diagram.

Fig. 5 is the example for showing the preferred axis of IPS liquid crystal display device involved in embodiments of the present invention 3 and constituting Schematic diagram.

Fig. 6 is the example for showing the preferred axis of IPS liquid crystal display device involved in embodiments of the present invention 4 and constituting Schematic diagram.

Specific embodiment

Hereinafter, for the liquid crystal display panel according to the present invention for polarizing board group and having used the polarization board group, using appropriate Attached drawing be illustrated, but the present invention is not limited to these embodiments.

The preferred layer that Fig. 1 (a)~(b) shows polarization plates involved in embodiments of the present invention 1 and embodiment 2 is constituted Example schematic section.(a)~(b) carries out the polarization plates of embodiments of the present invention 1 and embodiment 2 referring to Fig.1 Explanation.Board group is polarized shown in Fig. 1 (a)~(b) includes：As visuognosis lateral deviation vibration plate 10, in a surface layer of polarization plates 30 The polarization plates of the plate of λ/4 34 and positive c plate 35 have been folded, and as back side polarization plates 20, increasing has been laminated in the one side of polarization plates 50 The polarization plates of bright film 61.

The preferred layer that Fig. 2 (a)~(d) shows polarization plates involved in embodiments of the present invention 3 and embodiment 4 is constituted Example schematic section.Polarization plates of the invention are illustrated referring to Fig. 2 (a)~(d).Shown in Fig. 2 (a)~(d) Polarizing board group includes：As visuognosis lateral deviation vibration plate 10, the plate of λ/4 34 and positive c plate 35 has been laminated in the one side of polarization plates 30 Polarization plates and as back side polarization plates 20, have been laminated the plate of λ/2 54 and positive c plate 55 in the one side of polarization plates 50 and have polarized The another side of plate 50 is laminated with the polarization plates of brightness enhancement film 61.

[each component for constituting visuognosis lateral deviation vibration plate and back side polarization plates]

Visuognosis lateral deviation vibration plate and back side polarization plates of the invention includes polarization plates 30 and polarization plates 50.

[polarizing film]

Polarizing film 32 (the first polarizing film 32 ') and 52 (the second polarizing films 52 ') generally go through following process to manufacture：To poly- The process that vinyl alcohol resin film is uniaxially stretched；Make it and dyeing polyvinyl alcohol resin film dichroism pigment The process for adsorbing dichroism pigment；The polyvinyl alcohol resin film for being adsorbed with dichroism pigment is handled with boric acid aqueous solution Process；And the process washed after the processing based on boric acid aqueous solution.

As polyvinyl alcohol resin, the resin after being saponified polyvinyl acetate system resin can be used.As poly- second Vinyl acetate system resin, other than homopolymer, that is, polyvinyl acetate of vinyl acetate, can also enumerate vinyl acetate with It can be with the copolymer etc. of the other monomers of its copolymerization.As example can be enumerated with the other monomers of vinyl acetate copolymerization Such as unsaturated carboxylic acid class, olefines, vinyl ethers, unsaturated sulfonic acid class and the acrylic amide with ammonium.

The saponification degree of polyvinyl alcohol resin is usually 85~100mol% or so, preferably 98mol% or more.The poly- second Enol system resin can be modified, such as the polyvinyl formal after being modified using aldehydes and polyethylene also can be used Alcohol acetal etc..In addition, the degree of polymerization of polyvinyl alcohol resin is usually 1,000~10,000 or so, preferably 1,500~5, 000 or so.

By such polyvinyl alcohol resin film after resulting film, can be used as polarizing film 32 (the first polarizing film 32 ') and The former material film of 52 (the second polarizing films 52 ').It about the method for being film-made polyvinyl alcohol resin, is not particularly limited, Ke Yili It is film-made with well known method.The film thickness of polyethenol series former material film is not particularly limited, but for example, 10 μm~150 μm left sides It is right.

Being uniaxially stretched for polyvinyl alcohol resin film can be before the dyeing of dichroism pigment, while dyeing or after dyeing It carries out.In the case where being uniaxially stretched after dyeing, this be uniaxially stretched can boric acid processing before or boric acid processing in into Row.Alternatively, it is also possible to be uniaxially stretched in above multiple stages.

When being uniaxially stretched, it can both be stretched uniaxially between the different roller of peripheral speed, hot-rolling also can be used It is stretched uniaxially.In addition, being uniaxially stretched the dry type stretching either being stretched in an atmosphere, it is also possible to using Solvent makes the wet tensile stretched in the state of polyvinyl alcohol resin membrane swelling.Stretching ratio is usually 3~8 times of left sides It is right.

As the method for being dyed polyvinyl alcohol resin film with dichroism pigment, using for example by polyvinyl alcohol resin Method of the film immersion into the aqueous solution containing dichroism pigment.As dichroism pigment, specifically, iodine, two colors can be used Property dyestuff.It should be noted that polyvinyl alcohol resin film is preferably implemented before dyeing processing in advance at dipping in water Reason.

In the case where using iodine as dichroism pigment, it is typically employed in the aqueous solution containing iodine and potassium iodide and impregnates Method of the polyvinyl alcohol resin film to be dyed.The content of iodine in the aqueous solution is led in the water of every 100 parts by weight It is often 0.01~1 parts by weight or so.In addition, the content of potassium iodide is usually that 0.5~20 parts by weight are left in every 100 parts by weight water It is right.The temperature of aqueous solution for dyeing is usually 20~40 DEG C or so.

In addition, dip time (dyeing time) in the aqueous solution is usually 20~1,800 seconds or so.

On the other hand, it in the case where using dichroic dye as dichroism pigment, is typically employed in containing water solubility Method of the polyvinyl alcohol resin film to be dyed is impregnated in the aqueous solution of dichroic dye.Dichroism in the aqueous solution The content of dyestuff is usually 1 × 10 in every 100 parts by weight water^-4~10 parts by weight or so, preferably 1 × 10^-3~1 parts by weight Left and right.The aqueous solution can contain the inorganic salts such as sodium sulphate as dyeing assistant.Dichroic dye aqueous solution for dyeing Temperature is usually 20~80 DEG C or so.In addition, dip time (dyeing time) in the aqueous solution is usually 10~1,800 seconds Left and right.

It is handled using the boric acid after the dyeing of dichroism pigment, it usually can be by the polyvinyl alcohol resin after dyeing Film immersion is carried out into boracic aqueous acid.

The amount of boric acid in boracic aqueous acid is usually 2~15 parts by weight or so in every 100 parts by weight water, preferably 5~12 parts by weight.In the case where using iodine as dichroism pigment, which preferably comprises potassium iodide.Boracic The amount of potassium iodide in aqueous acid is usually 0.1~15 parts by weight or so, preferably 5~12 weights in every 100 parts by weight water Measure part or so.Dip time in boracic aqueous acid is usually 60~1,200 seconds or so, preferably 150~600 seconds left sides The right side, more preferably 200~400 seconds or so.The temperature of boracic aqueous acid is usually 50 DEG C or more, and preferably 50~85 DEG C, more Preferably 60~80 DEG C.

Usually washing process is carried out to through boric acid treated polyvinyl alcohol resin film.Washing process can for example pass through The polyvinyl alcohol resin film immersion for having carried out boric acid processing is carried out in water.In washing process, the temperature of water is usually 5 ~40 DEG C or so.In addition, dip time is usually 1~120 second or so.

Implement to be dried after washing, to obtain polarizing film 32 (the first polarizing film 32 ') and 52 (the second polarizing films 52').Air drier or far infra-red heater can be used to carry out in drying process.The temperature of drying process is usually 30 ~100 DEG C or so, preferably 50~80 DEG C.The time of drying process is usually 60~600 seconds or so, preferably 120~600 Second.

By being dried, the moisture rate of polarizing film 32 (the first polarizing film 32 ') and 52 (the second polarizing films 52 ') is reduced To practical level.The moisture rate is usually 5~20 weight %, preferably 8~15 weight %.If moisture rate is lower than 5 weight %, The flexibility of polarizing film 32 (the first polarizing film 32 ') and 52 (the second polarizing films 52 ') can be lost, (the first polarizing film of polarizing film 32 32 ') and 52 (the second polarizing films 52 ') after the drying it some times happens that damage or fracture.In addition, if moisture rate is higher than 20 weights % is measured, then the thermal stability of polarizing film 32 (the first polarizing film 32 ') and 52 (the second polarizing films 52 ') is deteriorated sometimes.

By operating above, it is possible to produce gas absorption quantity has occurred in dichroism pigment in polyvinyl alcohol resin film Polarizing film.

In addition, the stretching of the polyvinyl alcohol resin film in the manufacturing process of polarizing film, dyeing, boric acid processing, washing work Sequence, drying process can for example be carried out according to the method recorded in Japanese Unexamined Patent Publication 2012-159778.As the document is recorded Method is such, use by base material film pva coating system resin form the polyvinyl alcohol resin as polarizing film The method of layer is also useful.

In order to inhibit lower the convergent force of polarizing film under hot environment, preferably make polarizing film with a thickness of 15 μm with Under, more preferably 12 μm or less.From the viewpoint of it can assign good optical characteristics, the thickness of polarizing film is usually 3 μm More than.

By using the polarizing film for inhibiting the convergent force under hot environment, also it is able to suppress the contraction with polarizing film and accompanies The plate of λ/2, the plate of λ/4 strain caused by phase difference variation, it is uneven small display can be obtained when being used for liquid crystal display device Polarization plates.

Polarizing film 80 DEG C at a temperature of keep 240 minutes when, absorb axis direction every 2mm width convergent force it is preferred For 2N/2mm or less.When the convergent force is greater than 2N/2mm, the size changing amount under hot environment increases and the convergent force of polarizing film Increase, therefore the plate of λ/2, the plate of λ/4 are easy to happen strain and then there are the tendencies that rupture is easy to produce on polarizing film.It is drawn reducing When stretching multiplying power and when the thickness of thinned polarizing film, the convergent force of polarizing film has and becomes 2N/2mm tendency below.Convergent force Measuring method according to aftermentioned embodiment method carry out.

It is preferred that at least one surface layer in polarizing film folds protective film, there can also be protective film on two sides.Protective film 31a, 31b, 51a, 51b can be made of transparent resin film.Particularly preferably shielded by the transparency, mechanical strength, thermal stability, moisture Property etc. excellent material constitute.In this specification, transparent resin film refer in visible domain monomer transmissivity be 80% with On resin film.

By make positive c plate 35,55, the plate of λ/4 34, the plate of λ/2 54 have the function of omitting as protective film protective film 31b, 51b is also effective means for the filming of polarization plates.In addition, likewise by having brightness enhancement film 61 as guarantor Protective film 51a is omitted in the effect of cuticula, is also effective means for the filming of polarization plates.

As protective film 31a, 31b, 51a, 51b, can be used by cellulose-based resin, chain polyolefin-based resins, ring Shape polyolefin-based resins, acrylic resin, polyimides system resins, polycarbonate-based resin, polyester based resin etc. are in ability The film that the material being widely used in the past as the forming material of protective film in domain is formed.

These resins can cooperate suitable additive in the range for not damaging the transparency.

As additive, such as antioxidant can be enumerated, ultraviolet absorbing agent, antistatic agent, lubricant, nucleating agent, prevented Mist agent, phase difference depressant, stabilizer, processing aid, plasticizer, impact resistance auxiliary agent, delustering agent, antibacterial agent, is prevented antiblocking agent Mould dose etc..These additives can be used together a variety of.

It is suitable for any most suitable method of selection as the method being film-made by above resin.It can be used for example： The resin for being dissolved in solvent is cast to made of metal band or rotary drum, then solvent seasoning is removed to obtain the solvent cast of film Method；And after resin is heated to its melting temperature or more, is kneaded, squeezed out from mold, and cooled down, thus To the extrusion by melting etc. of film.In the extrusion by melting, monofilm can be squeezed out, multilayer film can also be squeezed out simultaneously.

In addition, protective film 31a can be used for improve through polarization sunglasses viewing picture when visibility, The phase plate of stretch processing has been carried out to above-mentioned film.As phase plate, from the viewpoint of improving visibility, it is expected that It is configured in a manner of making substantially 45 ° of angle formed by the slow axis of the plate of λ/4 and the absorption axiss of polarizing coating.In addition, with length When the polarizing coating stacking of strip, if the angle formed by the longitudinal direction with strip is stretched in a manner of being substantially 45 ° or 135 °, Then polarization plates can be made in roll-to-roll mode, be therefore preferred.

[surface-treated layer 36 of protective film 31a]

It, can be in the face for the face opposite side being bonded with polarizing film 32 (the first polarizing film 32 ') for protective film 31a With surface-treated layer 36.As the surface-treated layer 36, such as the hard conating with subtle surface unevenness profile can be enumerated. It is preferred that the pencil hardness ratio H of hard conating is hard.

If its pencil hardness is H or is less than H, surface is easy to be damaged, the liquid crystal display device if being damaged Visibility is deteriorated.Pencil hardness is according to JIS K 5600-5-4：1999 " coating ordinary test method-the 5：Film Engineering properties-Section 4：Scratch hardness (pencil method) " is found out, by not generating wound when the pencil using each hardness is portrayed The hardness of most hard pencil indicates.

Protective film 31a with surface-treated layer 36 preferably its haze value be set as 0.1~45% range, further preferably It is set as 5~40% range.If haze value be greater than 45% region, although then mirroring for extraneous light can reduce, The closely knit decline of black display picture.In addition, being unable to get sufficient anti-dazzle performance, and exterior light if haze value is lower than 0.1% Line mirrors picture, therefore is undesirable.Here, haze value is according to JIS K 7136：2000 " plastics-transparent material mist degrees Find out method " and acquire.

Hard conating with subtle surface unevenness profile can wait to be formed by the following method, that is, in the table of resin film The method of film of the face formation containing organic fine particles or inorganic particles；It is being formed containing organic fine particles or inorganic particles or not After film containing organic fine particles or inorganic particles, the method that is compressed with the roller for imparting concaveconvex shape, such as Decal.This The film of sample can for example be formed by following method etc., that is, on the surface of resin film, coating, which contains, includes curable resin Adhesive ingredients and organic fine particles or inorganic particles coating fluid (hardening resin composition) method etc..

Other than as the above-mentioned non-glare treated (mist degree imparting processing) of hard conating, protective film 31a can also be implemented anti- The surface treatment of the various additions such as reflecting layer, antistatic treatment, antifouling process or antimicrobial treatment, can also be on protective film 31a Form the coating comprising liquid crystal compounds, its high-molecular weight compounds etc..It is especially 3% below being formed with reflectivity In the case where anti-reflection layer, even 10000Lux or more also can lossless visibility, therefore it is preferable to use.It needs to illustrate , other than surface treatment, anti-static function can also be assigned to the other parts of the polarization plates such as such as adhesive phase.

[protective film 31b, 51b]

As protective film 31b, 51b, preferred cellulose system resin or cyclic polyolefin hydrocarbon system resin, this is because length of delay Control is easy and is also easy.

Cellulose-based resin can be the hydrogen atom of the hydroxyl of cellulose part or all by acetyl group, propiono And/or cellulose organic ester or cellulose mixed organic acid ester obtained by bytyry substitution.For example, can enumerate comprising cellulose Acetic acid esters, propionic ester, butyrate and these esters mixed ester etc. resin.Wherein, preferably triacetyl cellulose, diacetyl Cellulose, cellulose acetate propionate, cellulose acetate butyrate etc..

Cyclic polyolefin hydrocarbon system resin is, for example, by the cyclic olefin list of norbornene and other cyclopentadiene derivants etc Resin obtained by body is polymerize in the presence of a catalyst.If readily available using such cyclic polyolefin hydrocarbon system resin The aftermentioned protective film with defined length of delay.

As cyclic polyolefin hydrocarbon system resin, can enumerate for example：To pass through Diels-Alder reaction by cyclopentadiene and alkene Norbornene that hydro carbons or (methyl) acrylic acid or its esters obtain or derivatives thereof is monomer progress ring-opening metathesis polymerization, then Obtained resin is hydrogenated by subsequent；To pass through Diels-Alder reaction by bicyclopentadiene and olefines or (first Base) the obtained tetracyclododecane or derivatives thereof of acrylic acid or its esters carries out ring-opening metathesis polymerization for monomer, then after passing through The resin that continuous hydrogenation obtains；It will be selected from norbornene, tetracyclododecane, their derivative and other cyclic olefin lists At least two kinds of monomers in body are carried out similarly ring-opening metathesis copolymerization, then hydrogenate obtained resin by subsequent；Make chain olefin And/or the aromatic compound addition copolymerization with vinyl to norbornene, tetracyclododecane or their derivative it Resin obtained from the cyclic olefin of class etc..

In order to inhibit polarization to eliminate caused degree of polarization decline, the phase difference value of the thickness direction of protective film 31b, 51b Rth is preferably 10nm or less.The phase difference value Rth of thickness direction is the refractive index that mean refractive index in face subtracts thickness direction Resulting value is worth obtained by the thickness multiplied by film, is defined by following formula (a).In addition, the phase difference value Re in face is preferably 10nm or less.Phase difference value Re in face is value obtained by thickness of the refringence multiplied by film in face, is determined by following formula (b) Justice.

Rth=((n_x+n_y)/2-n_z〕×d (a)

Re=(n_x-n_y)×d (b)

In formula, n_xFor the refractive index of the x-axis direction (slow axis direction in face) in film surface, n_yFor the y-axis direction in film surface The refractive index in (leading phase shaft direction and orthogonal with x-axis direction in face in face), n_zFor the z-axis direction (thickness vertical with film surface Direction) refractive index, moreover, d be film thickness.

Here, phase difference value can be any wavelength in the range of immediate vicinity i.e. 500~650nm of visible light or so The value at place, but in the present specification using the phase difference value at wavelength 590nm as standard.

Commercially available various phasometers can be used to survey in phase difference value Re in the phase difference value Rth of thickness direction and face It is fixed.

The side in the range of 10nm or less is controlled with the phase difference value Rth of thickness direction as in the face by resin film Method, can enumerate when making film to reduce as much as possible and remain in face and the method for the strain of thickness direction.For example, above-mentioned molten It, can be using being made in the face that is generated when drying the cast resin solution by heat treatment and the residual of thickness direction in agent the tape casting The method etc. of contraction strain relaxation.It on the other hand, can be using following methods etc. in above-mentioned extrusion by melting：In order to prevent Resin film is stretched during squeezing out from mold up to cooling, shortens the distance from mold to cooler drum as much as possible, and And the rotation speed of extrusion output and cooler drum is controlled in a manner of not making film be stretched.Alternatively, it is also possible to solvent cast method Similarly using the method for the strain relaxation for making to remain in resulting film by heat treatment.

[plate of λ/4 34]

As the plate of λ/4 34, particularly preferably by excellent materials such as the transparency, mechanical strength, thermal stability, moisture shieldings It constitutes.Such as chain polyolefin-based resins (polypropylene-based resin etc.), cyclic polyolefin hydrocarbon system resin (orbornene-based tree can be enumerated Rouge etc.) etc polyolefin-based resins；The fibres such as the cellulose esters system resin of cellulosic triacetate, cellulose diacetate etc Tie up prime system resin；Polyester based resin；Polycarbonate-based resin；(methyl) acrylic resin；Polystyrene resin；Liquid crystal group Close object；Or their mixture, copolymer etc..Wherein, had just by the film that polycarbonate-based resin and liquid-crystal composition are formed Wavelength dispersibility, therefore it is preferable to use.

Here, positive wavelength dispersibility, which refers to, meets following formula (c).Number in () is that the measurement wavelength of phase difference value is (single Position nm).

Re (450) > Re (590) > Re (650) (c)

In addition, the phase difference value in the present invention as the plate of λ/4 refers to, phase difference value Re is at measurement wavelength 590nm 120nm~160nm.In the present invention, range that the Nz coefficient that the plate of λ/4 is preferably defined by following formula (d) is 0.8~1.2.More preferably For 0.95~1.05 range.

Nz=Re/Rth+0.5 (d)

Suitable additive can be cooperated in the plate of λ/4 in the range for not damaging the transparency.As additive, such as Antioxidant, ultraviolet absorbing agent, antistatic agent, lubricant, nucleating agent, antifoggant, antiblocking agent, phase difference, which can be enumerated, to be reduced Agent, stabilizer, processing aid, plasticizer, impact resistance auxiliary agent, delustering agent, antibacterial agent, mould inhibitor etc..These additives can be simultaneously With a variety of.

As polycarbonate-based resin, refer to aromatic copolycarbonate.Polycarbonate-based resin can be by the following method Etc. obtaining, that is, the method for reacting dihydric phenol by interface polycondensation or melt transesterification process with carbonate precursor； The method for polymerizeing polycarbonate prepolymer object by solid phase ester-interchange method；And keep cyclic carbonate compound poly- by open loop The legal method etc. being polymerize.

As dihydric phenol, it is preferable to use by bis- selected from bisphenol-A, bis- { (4- hydroxy-3-methyl) phenyl } propane of 2,2-, 2,2- Bis- (4- the hydroxy phenyl) -3- methybutanes of (4- hydroxy phenyl) butane, 2,2-, bis- (4- hydroxy phenyl) -3, the 3- dimethyl of 2,2- Bis- (4- the hydroxy phenyl) -4- methylpentanes of butane, 2,2-, bis- (the 4- hydroxy phenyls) -3 of 1,1-, 3,5- trimethyl-cyclohexanes and α, The homopolymer or copolymer that at least one of bis- (4- the hydroxy phenyl)-diisopropyl benzenes of α '-dihydric phenol obtains, particularly preferably Using the homopolymer of bisphenol-A and 1, bis- (the 4- hydroxy phenyls) -3 of 1-, 3,5- trimethyl-cyclohexanes with it is bis- selected from bisphenol-A, 2,2- At least one of { (4- hydroxy-3-methyl) phenyl } propane and bis- (4- the hydroxy phenyl)-diisopropyl benzenes of α, α '-dihydric phenol Copolymer.

As above-mentioned carbonate precursor, carbonyl halide, carbonic ester or haloformate etc. can be used, can specifically enumerate phosphinylidyne Chlorine, diphenyl carbonate or bishaloformate of dihydric phenol etc..

In order to assign defined phase difference value, preferably progress stretch processing to film made of such film.Stretching can adopt With being uniaxially stretched/gradually any most suitable drawing process such as biaxial stretch-formed/simultaneously biaxial drawing.

Liquid-crystal composition preferably its liquid crystalline phase is nematic phase (nematic liquid crystal).The performance mechanism of the liquid crystal liquid crystal property of liquid crystal material can Think lyotropic, or thermotropic.The state of orientation of liquid crystal material is preferably uniformly directed.As liquid crystal material, such as It is able to use liquid crystal polymer, liquid crystal monomer.Liquid crystal polymer and liquid crystal monomer can use individually, and can also combine makes With.

In the present invention as the plate of λ/4 in use, the cured layer of preferably liquid-crystal composition.Specifically, in liquid crystal combination In the case that object includes liquid crystal liquid crystal property monomer, which preferably comprises polymerizable monomer and/or cross-linkable monomer.By making Liquid crystal liquid crystal property monomer polymerization or crosslinking, it is possible thereby to which the state of orientation of liquid crystal liquid crystal property monomer is fixed.After being orientated liquid crystal liquid crystal property monomer, If such as keep liquid crystal liquid crystal property monomer polymerized together or be crosslinked, thus, it is possible to fix above-mentioned state of orientation.Here, being formed by polymerization Polymer, by being cross-linked to form tridimensional network, but they are non-liquid crystal property.Therefore, being formed by phase separation layer will not send out Transformation caused by temperature change specific to raw such as liquid crystal compounds to liquid crystalline phase, glass phase, crystalline phase.Its result It is that phase separation layer can become the extremely excellent layer of the stability not influenced by temperature change.

As above-mentioned liquid crystal liquid crystal property monomer, can enumerate trade name LC242, the Merck company of BASF AG trade name E7, The trade name LC-Sillicon-CC3767 of Wacker-Chem company.These liquid crystal liquid crystal property monomers can be used alone, or combination makes Use two or more.

Above-mentioned liquid crystal liquid crystal property monomer shows that the temperature range of liquid crystal liquid crystal property is different according to its type.Specifically, the temperature model Enclose preferably 40~120 DEG C, further preferably 50~100 DEG C, most preferably 60~90 DEG C.

Liquid crystal cured layer can be set in a manner of it can most play a role appropriately as the plate of λ/4.In other words, thick Degree can be set in a manner of desired optical characteristics can be obtained.The thickness of phase separation layer is preferably 0.5~10 μm, into one Step preferably 0.5~8 μm, it is 0.5~5 μm particularly preferred.

It, can be with as the method that production shows optically anisotropic film by coating-orientation of liquid-crystal composition Using any suitable method.Such as it can enumerate：Orientation is implemented to the surface of the base material films such as polyethylene terephthalate film Processing, and the method for forming liquid crystal cured layer surface coating includes the coating liquid of above-mentioned liquid-crystal composition.Coating liquid can To include polymerization initiator, crosslinking agent, surfactant, solvent etc..As orientation process, any suitable orientation can be used Processing.Specifically, mechanical orientation processing, physical orientation processing, chemical orientation process can be enumerated.

As the concrete example of mechanical orientation processing, friction treatment, stretch processing can be enumerated.Tool as physical orientation processing Body example can enumerate magnetic field orientating processing, electric field orientation processing.As the concrete example of chemical orientation process, oblique evaporation can be enumerated Method, light orientation processing.Preferably friction treatment.Orientation process can directly be implemented substrate film surface, can also be in base material film It is upper form any suitable alignment films (be typically silane coupling agent layer, polyvinyl alcohol layer or polyimide layer) after this is taken Implement to film.In the case where implementing friction treatment, preferably substrate film surface is directly implemented.

The differently- oriented directivity of above-mentioned orientation process can be set according to above-mentioned desired angle.By carrying out orientation position Reason, can be such that liquid crystal material is orientated, therefore be formed by the slow axis of liquid crystal cured layer according to the differently- oriented directivity of base material film It is substantially the same with the differently- oriented directivity of base material film.Thus, for example, polarizing film 32 (the first polarizing film 32 ') (strip) is in its length In the case that degree direction has absorption axiss, in the direction that the angle of the length direction relative to substrate (strip) is substantially 135 ° Implement orientation process.Form liquid crystal cured layer in this way, can by polarizing film 32 (the first polarizing film 32 ') (polarization plates) with The plate of λ/4 34 is continuously laminated by roll-to-roll mode.As a result, manufacturing process can be significantly reduced.

[plate of λ/2 54]

It, can be with as the plate of λ/2 54 used in polarization board group involved in embodiments of the present invention 3 and embodiment 4 Use the phase difference film made by material identical with the plate 34 of λ/4.The plate of λ/2 and the plate of λ/4 can be used to be made by identical material Phase difference film, it is possible to use the phase difference film made by different materials.

Consider from the easness of positive wavelength dispersibility, thinning, the adjustment of phase difference value, it is preferable to use in the same manner as the plate of λ/4 Optically anisotropic film is shown by coating-orientation of polycarbonate-based resin film, liquid crystal compounds.

In addition, the phase difference value in the present invention as the plate of λ/2 refers to, phase difference value Re is at measurement wavelength 590nm 200nm~300nm.In addition, the Nz coefficient of the plate of λ/2 is preferably 0.8~1.2 range.More preferably 0.95~1.05 range.

The feelings that optically anisotropic film is used for the plate of λ/2 will be being shown by coating-orientation of liquid crystal compounds Under condition, the thickness of phase separation layer is preferably 0.5~20 μm, 0.5~16 μm further preferred, 0.5~8 μm particularly preferred.

Optically anisotropic film, such as the second polarizing film are shown as coating-orientation by liquid-crystal composition 52 ' (strips) are in the case where its length direction has absorption axiss, at the angle of the length direction relative to substrate (strip) Degree implements orientation process for substantially 135 ° of direction.It, can be by the second polarizing film 52 ' by so forming liquid crystal cured layer (polarization plates) are continuously laminated with the plate of λ/2 54 by roll-to-roll mode.As a result, manufacturing process can be significantly reduced.

[positive c plate 35,55]

Positive c plate used in the present invention refers to, is in n_xWith n_yThe positive uniaxiality that is substantially equal and in film normal direction Phase difference film with optic axis.If being indicated with refractive index, for n_x≈n_y< n_zRelational phase difference film.

Delay Re in positive c plate 35,55 preferred faces is 20nm hereinafter, more preferably 10nm or less.In addition, thickness direction Phase difference value Rth is preferably -50nm~-150nm.More preferably -70nm~-120nm.

As long as positive c plate 35,55 has above-mentioned optical characteristics, material and form are not particularly limited.For example, by two-fold It penetrates the phase difference film of polymer film formation and has by the way that low molecule or macromolecule liquid are coated with or transferred on transparent supporting body Crystalline compound and the phase difference film etc. of phase separation layer formed can be used.Alternatively, it is also possible to use after being respectively laminated.

Phase difference film with above-mentioned optical characteristics, being formed by birefringent polymer film can be held by following method It changes places to be formed, that is, apply defined tension after fitting heat-shrinkable film while being heated and by polymeric membrane along film The method of thickness direction stretching is coated with the method being dried after vinyl carbazole system macromolecule.In addition, as with above-mentioned light Phase separation layer learning characteristic, being formed by liquid crystal compounds, may be exemplified following layer, that is, for containing chiral structure list Cholesteric disc liquid-crystal compounds, the composition of member, make its helical axis after being generally perpendicularly orientated with substrate, immobilize And the layer formed；The Rod-like liquid crystal compound that makes refractive anisotrop be positive, composition with substrate along being generally perpendicularly orientated The layer etc. for immobilizing and being formed afterwards.Rod-like liquid crystal compound can be low molecular compound, be also possible to macromolecule chemical combination Object.In addition, the phase separation layer for showing above-mentioned optical characteristics can be not only made of one layer of phase separation layer, it can also be by multiple phases Potential difference layer stackup shows the phase separation layer of above-mentioned optical characteristics to constitute.Alternatively, it is also possible to the layer of supporter and phase separation layer Stack integrally meets the mode of above-mentioned optical characteristics, to constitute phase separation layer.As used Rod-like liquid crystal compound, it is suitble to Using in the liquid crystal for carrying out becoming nematic liquid crystal phase, smectic liquid crystal phase, lysotropic liquid crystal phase state within the scope of the fixed temperature of orientation Compound.It is preferred that can not fluctuated and it is uniform vertically oriented, show smectic C, the liquid crystal of B phase.These phases It is birefringent larger compared with nematic liquid crystal, it is also preferred in terms of the thickness that can make film is thinning.In addition, especially pair It is excellent in the rod-shaped liquid crystalline compound for becoming above-mentioned mesomorphic state within the scope of orientation temperature appropriate in the presence of additive Choosing carrys out forming layer using the composition containing the additive and rod-shaped liquid crystalline compound.

As above-mentioned rod-shaped liquid crystalline compound, it is preferable to use azomethine type, azoxy class, cyanobiphenyl class, cyanogen Base phenyl esters, benzoates, cyclohexylenedinitrilotetraacetic acid phenyl esters, cyanophenylcyclohexanes class, cyano substituted-phenyl miazines, alcoxyl Base substituted-phenyl miazines, Ben Ji dioxane, diphenyl acetylene class and alkenylcyclohexyl benzonitriles class.It not only can be used above High molecule liquid crystal molecule also can be used in low molecular weight liquid crystal molecule.Be adapted for use in liquid crystal molecule have can be because of work Property light, electron ray, heat etc. and occur polymerization, cross-linking reaction partial structurtes molecule.The number of the partial structurtes be 1~ 6, preferably 1~3.

In the case where the phase separation layer formed comprising rod-shaped liquid crystalline compound is fixed as state of orientation, preferably make With making the substantially perpendicular orientation of rod-shaped liquid crystalline compound and be fixed as the state and the phase separation layer that is formed.It is substantially perpendicular Refer to, the director angulation of film surface and rod-shaped liquid crystalline compound is in the range of 70 °~90 °.These liquid crystal liquid crystal properties Angular orientation can also be carried out by closing object, can also gradually be changed with inclination angle (hybrid orientation).Angular orientation or hybrid orientation In the case where, average slope angle is preferably also 70 °~90 °, more preferable 80 °~90 °, most preferably 85 °~90 °.

The phase separation layer formed by rod-shaped liquid crystalline compound can be formed in the following way, that is, be formed in support Coating includes rod-shaped liquid crystalline compound, following polymerization initiators as needed, Air Interface on vertical alignment layer on body The coating fluid of vertical-tropism agent, other additives carries out vertically oriented and fixes the state of orientation.It is being formed in temporary support In the case where on body, it can also be made by the way that the phase separation layer to be transferred on supporter.In addition, not only can be by one layer of phase Potential difference layer shows the phase separation layer of above-mentioned optical characteristics to constitute, and multiple phase separation layers can also be laminated and be shown to constitute The phase separation layer of above-mentioned optical characteristics.Alternatively, it is also possible to integrally meet above-mentioned optics with the laminated body of supporter and phase separation layer The mode of characteristic, to constitute phase separation layer.

In the present invention, the positive c plate layer formed by liquid crystal compounds can be overlapped on the plate of λ/4 34 or the plate of λ/2 54 It is formed.

2 positive c plates 35,55 used in the present invention, the phase difference value of preferably its thickness direction is roughly equal.This hair Roughly equal in bright to refer to, the difference of the phase difference value of thickness direction is 20nm or less.

[brightness enhancement film 61]

Brightness enhancement film 61 is also referred to as reflection type polarizer, can be used with will be separated into from the emergent light of light source (backlight) The polarization conversion device of the function of transmission-polarizing light and polarization by reflection light or scattering polarization light.As described above, by by brightness enhancement film 61 configurations, can be using as the retroreflection light of polarization by reflection light or scattering polarization light, so as to make by inclined in polarization plates 50 The outgoing efficiency for the rectilinearly polarized light that vibration plate 50 is emitted improves.

Brightness enhancement film 61 for example can be anisotropic emission polarizing film.An example of anisotropic emission polarizing film is to transmit The rectilinearly polarized light of one direction of vibration and reflect another direction of vibration rectilinearly polarized light anisotropy it is multiple thin Film, concrete example are the DBEF (Japanese Unexamined Patent Publication 4-268505 bulletin etc.) of 3M.Anisotropic emission polarizing film it is another A example is the complex of cholesteric liquid crystal layers and the plate of λ/4, and concrete example is PCF (the Japanese Unexamined Patent Publication 11- of day east electrician No. 231130 bulletins etc.).Another example of anisotropic emission polarizing film is reflecting grating polarizing film, and concrete example is：To gold It is true to apply subtle processing to which the metal grate reflecting polarizer (U.S. of polarization by reflection light is emitted even if in visible light region No. 6288840 specification of patent etc.), metal particle is added in polymer matrix after stretched obtained by film (Japan Japanese Laid-Open Patent Publication 8-184701 bulletin).

Hard conating can be set with the face of 50 opposite side of polarization plates in brightness enhancement film 61, antiglare layer, light diffusion layer, have The optical layer of the phase separation layer of 1/4 wavelength phases difference etc.By forming optical layer, the adaptation of backlight band can be made, shown The uniformity of diagram picture improves.The thickness of brightness enhancement film 61 can be 10~100 μm or so, but the viewpoint of the filming from polarization plates It sets out, preferably 10~50 μm, 10~30 μm more preferable.

[bonding of each layer]

It is preferred that any suitable adhesive phase or adhesive layer is arranged between each component for constituting polarization plates of the invention.Example Such as, in order to which polarization plates are fitted to liquid crystal cells, adhesive phase preferably is set on the surface of polarization plates.In 1 He of present embodiment In embodiment 2, such as adhesive phase can be set in the outside of the plate of λ/4 34, adhesive is set in the outside of protective film 51b Layer.In addition, in present embodiment 3 and embodiment 4, such as adhesive phase can be set, in λ/2 in the outside of the plate of λ/4 34 Adhesive phase is arranged in the outside of plate 54.

As the bonding agent for forming adhesive layer, water system bonding agent can be enumerated, by the irradiation of ultraviolet light, electron ray Cured active energy ray curable bonding agent.As active energy ray curable bonding agent, can enumerate for example comprising third The composition of the free-radical polymerised compound of olefin(e) acid based compound etc, the cationic polymerization comprising epoxy compound etc The composition of property compound.These compositions preferably respectively contain radical polymerization initiator or cationic polymerization initiators.Make For adhesive, the adhesive (acrylic adhesive) of acrylic resin is preferably comprised.

[liquid crystal cells 60]

The liquid crystal layer as display medium that liquid crystal cells have a pair of of substrate and are held between substrate.At one Colour filter and black matrix" are provided on substrate (filter substrate).Control is provided on another substrate (active-matrix substrate) The switch element (representative is TFT) of the electro-optic properties of liquid crystal processed, the scan line that grid signal is assigned to the switch element With the signal wire and pixel electrode for assigning source signal to the switch element.

It should be noted that colour filter can be set in active-matrix substrate side.The interval (cell gap) of aforesaid substrate It is controlled by spacer.The side contacted with liquid crystal layer between aforesaid substrate is for example provided with to be taken by what polyimides was formed To film.

Drive as the polarization board group for configuring embodiments of the present invention 1 and embodiment 3, above-mentioned liquid crystal cells Dynamic model formula, can be used at the wavelength 590nm that phase difference value is IPS (In-Plane Switching) mould of 100~200nm in face Formula.Liquid crystal cells itself have close to phase difference value in the face of the wavelength of λ/4 like this, and thus, it is possible to configure circularly polarizing plate conduct Visuognosis lateral deviation vibration plate, can make the reflection of extraneous light decline to a great extent.

The method for being 100nm~200nm at wavelength 590nm as phase difference in the face for making liquid crystal cells, can pass through The thickness of the liquid crystal of liquid crystal cells is adjusted to make.For example, by the way that the thickness of the liquid crystal of liquid crystal cells is adjusted to 1~2 μm of left side The right side, thus, it is possible to produce the liquid crystal cells with phase difference value in desired face.

Drive as the polarization board group for configuring embodiments of the present invention 2 and embodiment 4, above-mentioned liquid crystal cells Dynamic model formula, can be used at the wavelength 590nm that phase difference value is IPS (In-Plane Switching) mould of 400~500nm in face Formula.Liquid crystal cells itself have close to phase difference value in the face of the wavelength of 3 λ/4 like this, and thus, it is possible to configure circularly polarizing plate to make For visuognosis lateral deviation vibration plate, the reflection of extraneous light can be made to decline to a great extent.

The method for being 400nm~500nm at wavelength 590nm as phase difference in the face for making liquid crystal cells, can pass through The thickness of the liquid crystal of liquid crystal cells is adjusted to make.For example, by the way that the thickness of the liquid crystal of liquid crystal cells is adjusted to 1~6 μm of left side The right side, thus, it is possible to produce the liquid crystal cells with phase difference value in desired face.

[liquid crystal display device]

Liquid crystal display device of the invention has polarization board group of the invention and above-mentioned liquid crystal cells.Liquid crystal of the invention Showing device is especially excellent even if extraneous light strong outdoor visibility, therefore is suitable for the liquid of middle-size and small-size purposes Crystal device.For example, the size for being suitable for liquid crystal display device is diagonal 15 inches of occasions below.

It is illustrated referring to axis composition of the Fig. 3 to each component in the liquid crystal display device of embodiments of the present invention 1.

It for ease of description, is 0 ° by the initial orientation direction definition of liquid crystal cells used in the present invention, it will be from view The angle rotated counterclockwise when feeling identification lateral deviation vibration plate viewing back side polarization plates is defined as normal incidence and is illustrated.The plate of λ/4 34 Slow axis is configured to substantially -90 ° relative to above-mentioned initial orientation direction.In addition, the absorption axiss of visuognosis lateral deviation vibration plate are opposite Substantially -45 ° are configured in above-mentioned initial orientation direction, the absorption axiss of back side polarization plates are matched relative to above-mentioned initial orientation direction It is set to substantially 45 °.Here, being indicated in the range of its value ± 5 °, preferably at expression in the case where being recorded as substantially several ° In the range of its value ± 2 °.

Then, it is said referring to axis composition of the Fig. 4 to each component in the liquid crystal display device of embodiments of the present invention 2 It is bright.

The slow axis of the plate of λ/4 34 is configured to substantially 0 ° relative to the initial orientation direction of liquid crystal cells.In addition, visuognosis The absorption axiss of lateral deviation vibration plate are configured to substantially 45 ° relative to above-mentioned initial orientation direction, and the absorption axiss of back side polarization plates are opposite Substantially 135 ° are configured in above-mentioned initial orientation direction.Here, in the case where being recorded as substantially several °, indicate in its value ± In the range of 5 °, preferably indicate in the range of its value ± 2 °.

Then, it is said referring to axis composition of the Fig. 5 to each component in the liquid crystal display device of embodiments of the present invention 3 It is bright.

The slow axis of the plate of λ/4 34 is configured to substantially -90 ° relative to the initial orientation direction of liquid crystal cells, the plate of λ/2 54 it is stagnant Phase axis is configured to substantially 0 ° relative to above-mentioned initial orientation direction.In addition, the absorption axiss of visuognosis lateral deviation vibration plate are relative to upper It states initial orientation direction and is configured to substantially -45 °, the absorption axiss of back side polarization plates are configured to relative to above-mentioned initial orientation direction Substantially -45 °.Here, indicating in the range of its value ± 5 ° in the case where being recorded as substantially several °, preferably indicate to be in it In the range of ± 2 ° of value.

Then, it is said referring to axis composition of the Fig. 6 to each component in the liquid crystal display device of embodiments of the present invention 4 It is bright.

The slow axis of the plate of λ/4 34 is configured to substantially 0 ° relative to the initial orientation direction of liquid crystal cells, the stagnant phase of the plate of λ/2 54 Axis is configured to substantially 90 ° relative to above-mentioned initial orientation direction.In addition, the absorption axiss of visuognosis lateral deviation vibration plate are relative to above-mentioned Initial orientation direction is configured to substantially 45 °, and the absorption axiss of back side polarization plates are configured to greatly relative to above-mentioned initial orientation direction Cause 45 °.Here, indicating in the range of its value ± 5 ° in the case where being recorded as substantially several °, preferably indicate to be in its value In the range of ± 2 °.

It should be noted that in the present invention, the initial orientation direction of liquid crystal cells refers to, liquid crystal cells are not being applied The differently- oriented directivity of liquid crystal molecule under the original state of driving voltage, about initial orientation angle, preferably with respect to liquid crystal cells Angle formed by long side is substantially 45 °.

Embodiment

Hereinafter, showing embodiment further specifically describes the present invention, but the present invention is not limited by these examples.Example In, the part for indicating content or usage amount and % are then weight basis unless otherwise noted.In addition, will be revolved counterclockwise about angle Turn to be set as just.It should be noted that the measurement of each physical property in example below is carried out by following method.

(1) measurement of thickness：

It is measured using the digital micrometer " MH-15M " of Nikon Corp.

(2) postpone the measurement with thickness direction retardation in face：

Using prince's measurement machine Co. Ltd. system using parallel-nicol rotary process as the phasometer " KOBRA of principle (registered trademark)-WPR ", 23 DEG C at a temperature of, in the face under each wavelength delay and thickness direction retardation be measured.

(3) measurement of the degree of polarization of polarization plates and monomer transmissivity：

Use spectrophotometer (" V7100 " of Japan Spectroscopy Corporation, the 2 degree of visuals field for having integrating sphere；Illuminant-C) It is measured.

(4) measurement of the convergent force of polarizing film

For polarizing film, in a manner of the direction (the absorption axis direction of polarizing film) to measure convergent force is long side, use SUPERCUTTER (the wild smart mechanism of Co., Ltd. reed is made made) is cut into width 2mm, length 50mm.By obtained strip Small pieces are as test film.It uses thermo-mechanical analysis device (SII NanoTechnology Co. Ltd. system, model TMA/6100) The convergent force of measurement test piece.The measurement is implemented under size certain pattern, and distance between chuck is set as 10mm.Test film is existed After 23 DEG C, indoor placement 24 hours or more of 55%, the indoor temperature setting of sample was set to be warming up to 80 DEG C from 23 DEG C with 1 minute, After heating, it is set to the indoor temperature of sample to be maintained at 80 DEG C.After heating, after further placing 4 hours, in 80 DEG C of environment The convergent force of the longitudinal direction of lower measurement test piece.

In the measurement, dead load is set as 0mN, and fixture uses the probe of SUS.

The production of [Production Example 1] polarizing film

By dry type stretching, by 30 μm of thickness of polyvinyl alcohol films (average degree of polymerization about 2400,99.9 moles of % of saponification degree More than) be uniaxially stretched to about 4 times, after then being impregnated 40 seconds in 40 DEG C of pure water in the case where keeping tensioned state, iodine/ It is impregnated 30 seconds at 28 DEG C in the aqueous solution that potassium iodide/water weight ratio is 0.052/5.7/100, to carry out dyeing processing. Then, it is impregnated 120 seconds at 70 DEG C in the aqueous solution that potassium iodide/boric acid/water weight ratio is 11.0/6.2/100.Then, It is 50 seconds dry at 60 DEG C in the state of the tension holding with 300N after cleaning 15 seconds with 8 DEG C of pure water, then at 75 DEG C Lower drying 20 seconds, to obtain 12 μm of thickness of the absorption-type polarizing film that the gas absorption quantity in polyvinyl alcohol film has iodine.Measurement institute The convergent force of obtained polarizing film, result 2.0N/2mm.

The production of [Production Example 2] water system bonding agent

The carboxy-modified polyvinyl alcohol that 3 parts by weight are dissolved in 100 parts by weight of water (is obtained from Co., Ltd. KURARAY Trade name " KL-318 "), the daiamid epoxy system as water-soluble epoxy resin of 1.5 parts by weight is added into the aqueous solution Additive (trade name " Sumirez Resin (registered trademark) 650 (30) " obtained from Taoka Chemical Industries Co. Ltd., The aqueous solution of 30 weight % of solid component concentration), to prepare water system bonding agent.

[adhesive A, B]

Prepare following 2 kinds of adhesives.

Adhesive A：25 μm of thickness of sheet adhesive (" P-3132 " of LINTEC Co. Ltd. system)

Adhesive B：5 μm of thickness of sheet adhesive (" NCF#L2 " of LINTEC Co. Ltd. system)

[protective film A, B, C, D]

Prepare following 4 kinds of protective films.

Protective film A：The tri acetyl cellulose membrane with hard conating of Konica Minolta Opto Inc.；25KCHCN-TC (32 μm of thickness)

Protective film B：The tri acetyl cellulose membrane of Konica Minolta Opto Inc.；KC2UA (25 μm of thickness)

Protective film C：The cyclic polyolefin resin film of Japanese ZEON Co. Ltd. system；ZF 14-013 (13 μm of thickness, wave Thickness direction phase difference=3.4nm at phase difference value=0.8nm in face under long 590nm, wavelength 590nm)

Protective film D：Co., Ltd. TOPPAN TOMOEGAWA OPTICALPRODUCTS by triacetyl cellulose prime system The antireflection film that resin is formed；(44 μm of thickness, 1.1%) Y value based on JIS-Z8701-1982 standard is to 40KSPLR

[brightness enhancement film A]

Prepare brightness enhancement film below.

Brightness enhancement film A：Brightness enhancement film (trade name " Advanced the Polarized Film, Version of 3M of 26 μ m-thicks 3”)

[production of the plate of λ/4 1]

After the surface of base material film (tri acetyl cellulose membrane, 80 μm of thickness) forms polyvinyl alcohol film (0.1 μm of thickness), make With friction cloth, friction treatment is carried out to polyvinyl alcohol film surface along the direction that the length direction relative to substrate is -45 °, thus Production has the base material film of alignment films.

Then, it would indicate that the polymerizable liquid crystal (BASF AG's system, trade name PaliocolorLC242) of nematic liquid crystal phase 10g and Photoepolymerizationinitiater initiater (Ciba Specialty Chemicals Co., Ltd. for the polymerizable liquid crystal compound System, trade name Irgacure (registered trademark) 907, the enumerate BTA system ultraviolet absorbing agent containing 1%) 0.5g, it is dissolved in first In benzene 40g, coating liquid is prepared.Then, which is applied on the surface of above-mentioned resulting orientation substrate by bar coater, then Heat drying 2 minutes, thus make liquid crystal aligning at 90 DEG C.The liquid crystal layer formed in this way is irradiated using metal halide lamp 20mJ/cm²Light, make the curable liquid crystal layer, thus form phase separation layer on substrate.Obtained phase separation layer with a thickness of 1 μm, phase difference value is 139.8nm at wavelength 590nm in face.

[production of the plate of λ/4 2]

To resin film obtained by hydrogenating the ring-opening polymerization polymer of orbornene-based monomer (Japanese ZEON Co. Ltd. system " ZEONOR FILM (registered trademark) ") carry out longitudinal be uniaxially stretched.Obtained phase difference film with a thickness of 18 μm, phase in face Potential difference value is 137.2nm at wavelength 590nm.

[production of the plate of λ/2 1]

Then, it would indicate that the polymerizable liquid crystal (BASF AG's system, trade name PaliocolorLC242) of nematic liquid crystal phase 10g and Photoepolymerizationinitiater initiater (Ciba Specialty Chemicals Co., Ltd. for the polymerizable liquid crystal compound System, trade name Irgacure (registered trademark) 907, the enumerate BTA system ultraviolet absorbing agent containing 1%) 0.5g, it is dissolved in first In benzene 40g, coating liquid is prepared.Then, which is applied on the surface of above-mentioned resulting orientation substrate by bar coater, then Heat drying 2 minutes, thus make liquid crystal aligning at 90 DEG C.The liquid crystal layer formed in this way is irradiated using metal halide lamp 20mJ/cm²Light, make the curable liquid crystal layer, thus form phase separation layer on substrate.Obtained phase separation layer with a thickness of 2 μm, phase difference value is 258.6nm at wavelength 590nm in face.

[production of the plate of λ/2 2]

To resin film obtained by hydrogenating the ring-opening polymerization polymer of orbornene-based monomer (Japanese ZEON Co. Ltd. system " ZEONOR FILM (registered trademark) ") carry out longitudinal be uniaxially stretched.Obtained phase difference film with a thickness of 39 μm, phase in face Potential difference value is 265.4nm at wavelength 590nm.

[production of positive c plate 1]

By commercially available vertical alignment layer (JALS-204R, Japan Synthetic Rubber Co. Ltd's system) with methyl ethyl ketone with 1: 1 After being diluted, the surface (coating weight of base material film (tri acetyl cellulose membrane, 80 μm of thickness) is coated on bar coater 2.4ml/m²).At once with heated-air drying 120 seconds of 120 DEG C.

Then, by following Rod-like liquid crystal compound 3.8g, Photoepolymerizationinitiater initiater (Irgacure (registered trademark) 907, Ciba-Geigy corporation) 0.06g, sensitizer (KAYACURE (registered trademark) DETX, Nippon Kayaku K. K's system) 0.02g, following Air Interface side vertical-tropism agent 0.002g are dissolved in the methyl ethyl ketone of 9.2g, to prepare solution.Use line The solution coating in the alignment films side for the film for being formed with above-mentioned alignment films, is heated 2 minutes at 100 DEG C, makes rod shaped liquid crystal by stick Compound orientation.Then, 120W/cm is utilized at 80 DEG C²High-pressure sodium lamp carries out UV irradiation in 20 seconds, and Rod-like liquid crystal compound is handed over Connection, then, placement is cooled to room temperature, to make the phase separation layer with positive c plate characteristic.The thickness of obtained phase separation layer Degree is 0.6 μm, and the phase difference value of thickness direction is -109.4nm at wavelength 590nm.

Rod-like liquid crystal compound

Air Interface side vertical-tropism agent：

The example of Japanese Patent Application 2003-119959 record shows compound (II-4)

[production of positive c plate 2~3]

Positive c plate 2~3 is made in the same manner as positive c plate 1.By adjusting thickness, phase difference value is set as desired phase difference Value.

Phase difference value Rth (590)=- 91.2nm of the thickness direction of positive c plate 2,

Phase difference value Rth (590)=- 69.1nm of the thickness direction of positive c plate 3,

[production of polarization plates A]

Saponification process is carried out to protective film A, to the binding face progress sided corona treatment with polarizing film of protective film C.So as to protect The triacetyl cellulose vegetarian noodles of cuticula A and the face by sided corona treatment of protective film C are the mode with the binding face of polarizing film, will be protected Cuticula A carries out be bonded with polarizing film and protective film C with water system bonding agent, obtains polarization plates A.

[production of polarization plates B]

Saponification process is carried out to protective film B, to the binding face progress sided corona treatment with polarizing film of protective film C.So as to protect The face by sided corona treatment of cuticula B and protective film C is mode with the binding face of polarizing film, by protective film B and polarizing film and Protective film C is bonded with water system bonding agent, obtains polarization plates.Adhesive B is bonded in the side protective film B of polarization plates B.At this point, Sided corona treatment is carried out to the binding face of protective film B and adhesive B.Finally, the adhesive B face paste in polarization plates closes brightness enhancement film A, obtain To polarization plates B.

[production of quasi- liquid crystal cells]

The production of quasi- liquid crystal cells A in embodiments of the present invention 1 or embodiment 3 is illustrated.Prepare 2 The alkali-free glass of Corning corporation：Adhesive is bonded on Eagle XG (thickness 0.7mm, the size of vertical 157mm × horizontal 98mm) Gains made of B.At this point, the binding face to glass and adhesive carries out sided corona treatment.Then, in the adhesive of a sheet glass The plate of λ/4 1 of B face paste conjunction pre-production.At this point, also carrying out sided corona treatment to the plate of λ/4 1 and the face adhesive B.Finally, will be fitted with 1 face of the plate of λ/4 of the glass of the plate of the λ/4 1 and the adhesive B face paste of another sheet glass are closed, to make quasi- liquid crystal cells A.At this point, Sided corona treatment is carried out to the binding face in 1 face of the plate of λ/4 and adhesive B.To make the plate of λ/4 1 when the longitudinal direction of glass is set as 0 ° Slow axis direction be that -45 ° of mode is made.

It is assumed that the initial orientation direction of the above-mentioned quasi- liquid crystal cells A in embodiments of the present invention 1 or embodiment 3 is opposite It is 45 ° in the longitudinal direction of glass, above-mentioned quasi- liquid crystal cells A is assumed to be to liquid crystal list when applying driving voltage (when white display) Member.

Then, the production of the quasi- liquid crystal cells B in embodiments of the present invention 2 or embodiment 4 is illustrated.Prepare 2 alkali-free glass in Corning corporation：Fitting is viscous on EagleXG (thickness 0.7mm indulges the size of 157mm × horizontal 98mm) Gains made of mixture B.At this point, the binding face to glass and adhesive carries out sided corona treatment.Then, in the viscous of 2 sheet glass The plate of λ/4 1 of mixture B face paste conjunction pre-production.Sided corona treatment is carried out to the plate of λ/4 1 and the face adhesive B at this time.In turn, in 2 glass 1 face paste of the plate of the λ of glass/4 closes adhesive B.Sided corona treatment also is carried out to the plate of λ/4 1 and the face adhesive B at this time.For a sheet glass, into The plate of λ/4 1 is fitted in the face adhesive B by one step.Sided corona treatment also is carried out to the plate of λ/4 1 and the face adhesive B at this time.

Finally, the adhesive B face paste of 1 face of the plate of the λ of a sheet glass/4 and another sheet glass is closed, to make quasi- liquid crystal list First B.At this point, the binding face to 1 face of the plate of λ/4 and adhesive B carries out sided corona treatment.

It is made in a manner of 45 ° of slow axis direction for making the plate of whole λ/4 1 when the longitudinal direction of glass is set as 0 ° Make.

It is assumed that the initial orientation direction of the above-mentioned quasi- liquid crystal cells B in embodiments of the present invention 2 or embodiment 4 is opposite It is -45 ° in the longitudinal direction of glass, above-mentioned quasi- liquid crystal cells B is assumed to be to liquid crystal when applying driving voltage (when white display) Unit.

Then, using the High MackieBlue (MO-150-MC-BL) of Zebra Co. Ltd. system, intend in made (A dream of trembling is (in the only male work of vine F for a glass surface drawing of liquid crystal cells A and B《It trembles A dream》In come on stage Cat humanoid robot, Shogakukan distribution) portrait).

[backlight]

From liquid crystal display panel is taken out in the Nexus7 (registered trademark) of Google Inc., by only lighting backlight, to obtain Backlight.

[embodiment 1-1]

(production of visuognosis lateral deviation vibration plate 1-1)

Adhesive B is closed in the protective film C face paste of polarization plates A.At this point, the binding face to the face protective film C and adhesive B carries out Sided corona treatment.Then, the plate of λ/4 1 is folded in the adhesive B surface layer of made polarization plates A.At this point, to adhesive B and λ/4 plate 1 Binding face carries out sided corona treatment.

So that angle formed by the absorption axiss of polarization plates and the plate of λ/4 1 is 45 ° (when watching protective film C from protective film A, with phase The slow axis of the plate of λ/4 1 is configured for the mode that the absorption axiss of polarization plates rotate 45 ° counterclockwise.) mode be bonded.

In turn, adhesive B is closed in 1 face paste of the plate of λ/4 of polarization plates A.At this point, also to 1 face of the plate of λ/4 of polarization plates A and bonding The binding face of agent B carries out sided corona treatment.Then, positive c plate 1 is closed in the adhesive B face paste of polarization plates A.At this point, also to adhesive B The binding face of face and positive c plate 1 implements sided corona treatment.

Finally, 1 face paste of positive c plate in polarization plates A closes adhesive A.At this point, the also fitting to positive c plate 1 face and adhesive A Face carries out sided corona treatment.Thus visuognosis lateral deviation vibration plate 1-1 is made.

(production of back side polarization 1-1)

Adhesive A is closed in the protective film C face paste of polarization plates B, makes back side polarization plates 1-1.At this point, to the face protective film C Sided corona treatment is carried out with the binding face of adhesive A.

Made visuognosis lateral deviation vibration plate 1-1 and back side polarization plates 1-1 are cut into vertical 155mm × horizontal 96mm Size.At this point, when watching the protective film A of visuognosis lateral deviation vibration plate 1-1 as upper surface, so that visuognosis lateral deviation is shaken The absorption axiss of the plate mode parallel with short side direction is cut, using the face protective film B of back side polarization plates 1-1 as upper table When face is watched, cut in the mode for keeping the absorption axiss of back side polarization plates 1-1 parallel with longitudinal direction.

There is the glass surface fitting visuognosis lateral deviation vibration plate 1-1 of picture in the description of quasi- liquid crystal cells A and in its opposing face Glass surface be bonded back side polarization plates 1-1, make quasi- liquid crystal display panel.Axis is constituted as shown in Fig. 3 (b) at this time.

In the quasi- liquid crystal panel to made backlight so made, will be confirmed whether can visuognosis to figure It draws.Visibility is confirmed under extraneous light, as a result, good 7500Lux visibility.

[embodiment 1-2]

Positive c plate 1 is changed to positive c plate 2, makes quasi- liquid crystal display panel in the same manner as embodiment 1-1 in addition to this.

[embodiment 1-3]

Positive c plate 1 is changed to positive c plate 3, makes quasi- liquid crystal display panel in the same manner as embodiment 1-1 in addition to this.

[embodiment 1-4]

The protective film A of visuognosis lateral deviation vibration plate 1-1 is changed to protective film D, in addition to this in the same manner as embodiment 1-1 Make quasi- liquid crystal display panel.

In the quasi- liquid crystal panel to made backlight so made, will be confirmed whether can visuognosis to figure It draws.Visibility is confirmed under extraneous light, as a result, good 10000Lux visibility.

[embodiment 1-5]

Positive c plate 1 is changed to positive c plate 2, makes quasi- liquid crystal display panel in the same manner as embodiment 1-4 in addition to this.

[embodiment 1-6]

Positive c plate 1 is changed to positive c plate 3, makes quasi- liquid crystal display panel in the same manner as embodiment 1-4 in addition to this.

[embodiment 1-7]

(production of visuognosis lateral deviation vibration plate 1-2)

Adhesive B is closed in the protective film C face paste of polarization plates A.At this point, the binding face to the face protective film C and adhesive B carries out Sided corona treatment.Then, positive c plate 1 is closed in the adhesive B face paste of made polarization plates A.At this point, also to the face adhesive B and positive C The binding face of plate 1 implements sided corona treatment.In turn, adhesive B is closed in 1 face paste of positive c plate of polarization plates A.At this point, also to polarization plates A 1 face of positive c plate and adhesive B binding face carry out sided corona treatment.Then, the plate of λ/4 1 is closed in the adhesive B face paste of polarization plates A. At this point, the binding face to adhesive B and λ/4 plate 1 carries out sided corona treatment.So that angle formed by the absorption axiss of polarization plates and the plate of λ/4 1 It (when watching protective film C from protective film A, is configured in a manner of rotating 45 ° counterclockwise relative to the absorption axiss of polarization plates for 45 ° The slow axis of the plate of λ/4 1.) mode be bonded.

Finally, 1 face paste of the plate of λ/4 in polarization plates A closes adhesive A.At this point, the also fitting to 1 face and adhesive A of the plate of λ/4 Face carries out sided corona treatment.Thus visuognosis lateral deviation vibration plate 1-2 is made.

Made visuognosis lateral deviation vibration plate 1-2 and back side polarization plates 1-1 are cut into vertical 155mm × horizontal 96mm Size.At this point, when watching the protective film A of visuognosis lateral deviation vibration plate 1-2 as upper surface, so that visuognosis lateral deviation is shaken The absorption axiss of the plate mode parallel with short side direction is cut, using the face protective film B of back side polarization plates 1-1 as upper table When face is watched, cut in the mode for keeping the absorption axiss of back side polarization plates 1-1 parallel with longitudinal direction.

There is the glass surface fitting visuognosis lateral deviation vibration plate 1-2 of picture in the description of quasi- liquid crystal cells A and in its opposing face Glass surface be bonded back side polarization plates 1-1, make quasi- liquid crystal display panel.Axis is constituted as shown in Fig. 3 (b) at this time.

[embodiment 1-8]

Positive c plate 1 is changed to positive c plate 2, makes quasi- liquid crystal display panel in the same manner as embodiment 1-7 in addition to this.

[embodiment 1-9]

Positive c plate 1 is changed to positive c plate 3, makes quasi- liquid crystal display panel in the same manner as embodiment 1-7 in addition to this.

[embodiment 1-10]

The protective film A of visuognosis lateral deviation vibration plate 1-2 is changed to protective film D, in addition to this in the same manner as embodiment 1-7 Make quasi- liquid crystal display panel.

[embodiment 1-11]

Positive c plate 1 is changed to positive c plate 2, makes quasi- liquid crystal display panel in the same manner as embodiment 1-10 in addition to this.

[embodiment 1-12]

Positive c plate 1 is changed to positive c plate 3, makes quasi- liquid crystal display panel in the same manner as embodiment 1-10 in addition to this.

[embodiment 1-13~1-24]

The plate of the λ of embodiment 1-1~1-12/4 1 is changed to the plate of λ/4 2, similarly makes quasi- liquid crystal surface respectively in addition to this Plate.The corresponding relationship of the number of each embodiment is as shown in table 1 below.

[table 1]

In the quasi- liquid crystal panel to made backlight so made, will be confirmed whether can visuognosis to figure It draws.Visibility is confirmed under extraneous light, as a result, in all quasi- liquid crystal display panels, even if 10000Lux visibility Also good.

[comparative example 1]

Polarization plates above and below the liquid crystal display panel removing of the Nexus7 (registered trademark) of Google Inc., in wavelength Phase difference value in the face of liquid crystal cells, result 355nm are measured at 590nm.Then, in the visuognosis of the liquid crystal cells of taking-up Side is bonded polarization plates A via adhesive A, is bonded polarization plates B, production via adhesive A in the back side of the liquid crystal cells of taking-up Liquid crystal display panel.The liquid crystal display panel made in this way is installed on Nexus7, the image of picture is shown in picture and in extraneous light Under be confirmed whether can visuognosis arrive.As a result, visibility is remarkably decreased at 5000Lux, the identification of image becomes tired It is difficult.

[embodiment 2-1]

(production of visuognosis lateral deviation vibration plate 2-1)

So that angle formed by the absorption axiss of polarization plates and the plate of λ/4 1 be -45 ° (when watching protective film C from protective film A, with The mode that absorption axiss relative to polarization plates rotate clockwise 45 ° configures the slow axis of the plate of λ/4 1.) mode be bonded.

Finally, 1 face paste of positive c plate in polarization plates A closes adhesive A.At this point, the also fitting to positive c plate 1 face and adhesive A Face carries out sided corona treatment.Thus visuognosis lateral deviation vibration plate 2-1 is made.

(production of back side polarization plates 2-1)

Adhesive A is closed in the protective film C face paste of polarization plates B, makes back side polarization plates 2-1.At this point, to the face protective film C Sided corona treatment is carried out with the binding face of adhesive A.

Made visuognosis lateral deviation vibration plate 2-1 and back side polarization plates 2-1 are cut into vertical 155mm × horizontal 96mm Size.At this point, when watching the protective film A of visuognosis lateral deviation vibration plate 2-1 as upper surface, so that visuognosis lateral deviation is shaken The absorption axiss of the plate mode parallel with short side direction is cut, using the face protective film B of back side polarization plates 2-1 as upper table When face is watched, cut in the mode for keeping the absorption axiss of back side polarization plates 2-1 parallel with longitudinal direction.

There is the glass surface fitting visuognosis lateral deviation vibration plate 2-1 of picture in the description of quasi- liquid crystal cells B and in its opposing face Glass surface be bonded back side polarization plates 2-1, make quasi- liquid crystal display panel.Axis is constituted as shown in Fig. 4 (b) at this time.

[embodiment 2-2]

Positive c plate 1 is changed to positive c plate 2, makes quasi- liquid crystal display panel in the same manner as embodiment 2-1 in addition to this.

[embodiment 2-3]

Positive c plate 1 is changed to positive c plate 3, makes quasi- liquid crystal display panel in the same manner as embodiment 2-1 in addition to this.

[embodiment 2-4]

The protective film A of visuognosis lateral deviation vibration plate 2-1 is changed to protective film D, in addition to this in the same manner as embodiment 2-1 Make quasi- liquid crystal display panel.

[embodiment 2-5]

Positive c plate 1 is changed to positive c plate 2, makes quasi- liquid crystal display panel in the same manner as embodiment 2-4 in addition to this.

[embodiment 2-6]

Positive c plate 1 is changed to positive c plate 3, makes quasi- liquid crystal display panel in the same manner as embodiment 2-4 in addition to this.

[embodiment 2-7]

(production of visuognosis lateral deviation vibration plate 2-2)

Adhesive B is closed in the protective film C face paste of polarization plates A.At this point, the binding face to the face protective film C and adhesive B carries out Sided corona treatment.Then, positive c plate 1 is folded in the adhesive B surface layer of made polarization plates A.At this point, to adhesive B and positive c plate 1 Binding face carries out sided corona treatment.In turn, adhesive B is closed in 1 face paste of positive c plate of polarization plates A.At this point, also to the positive C of polarization plates A The binding face of 1 face of plate and adhesive B carry out sided corona treatment.Then, the plate of λ/4 1 is closed in the adhesive B face paste of polarization plates A.At this point, Also sided corona treatment is implemented to the binding face in the face adhesive B and the plate of λ/4 1.So that angle formed by the absorption axiss of polarization plates and the plate of λ/4 1 It (when watching protective film C from protective film A, is configured in such a way that the absorption axiss relative to polarization plates rotate clockwise 45 ° for -45 ° The slow axis of the plate of λ/4 1.) mode be bonded.Finally, 1 face paste of the plate of λ/4 in polarization plates A closes adhesive A.At this point, also right The binding face of 1 face of the plate of λ/4 and adhesive A carries out sided corona treatment.Thus visuognosis lateral deviation vibration plate 2-2 is made.

Made visuognosis lateral deviation vibration plate 2-2 and back side polarization plates 2-1 are cut into vertical 155mm × horizontal 96mm Size.At this point, when watching the protective film A of visuognosis lateral deviation vibration plate 2-2 as upper surface, so that visuognosis lateral deviation is shaken The absorption axiss of the plate mode parallel with short side direction is cut, using the face protective film B of back side polarization plates 2-1 as upper table When face is watched, cut in the mode for keeping the absorption axiss of back side polarization plates 2-1 parallel with longitudinal direction.

There is the glass surface fitting visuognosis lateral deviation vibration plate 2-2 of picture in the description of quasi- liquid crystal cells B and in its opposing face Glass surface be bonded back side polarization plates 2-1, make quasi- liquid crystal display panel.Axis is constituted as shown in Fig. 4 (b) at this time.

[embodiment 2-8]

Positive c plate 1 is changed to positive c plate 2, makes quasi- liquid crystal display panel in the same manner as embodiment 2-7 in addition to this.

[embodiment 2-9]

Positive c plate 1 is changed to positive c plate 3, makes quasi- liquid crystal display panel in the same manner as embodiment 2-7 in addition to this.

[embodiment 2-10]

The protective film A of visuognosis lateral deviation vibration plate 2-2 is changed to protective film D, in addition to this in the same manner as embodiment 2-7 Make quasi- liquid crystal display panel.

[embodiment 2-11]

Positive c plate 1 is changed to positive c plate 2, makes quasi- liquid crystal display panel in the same manner as embodiment 2-10 in addition to this.

[embodiment 2-12]

Positive c plate 1 is changed to positive c plate 3, makes quasi- liquid crystal display panel in the same manner as embodiment 2-10 in addition to this.

[embodiment 2-13~2-24]

The plate of λ/4 1 is changed to the plate of λ/4 2 in embodiment 2-1~2-12, similarly makes quasi- liquid crystal respectively in addition to this Panel.The corresponding relationship of the number of each embodiment is as shown in table 2 below.

[table 2]

[embodiment 3-1]

(production of visuognosis lateral deviation vibration plate 3-1)

So that angle formed by the absorption axiss of polarization plates and the plate of λ/4 1 is 45 ° (when watching protective film C from protective film A, with phase The plate of λ/4 1 is configured for the mode that the absorption axiss of polarization plates rotate 45 ° counterclockwise.) mode be bonded.

Finally, 1 face paste of positive c plate in polarization plates A closes adhesive A.At this point, the also fitting to positive c plate 1 face and adhesive A Face carries out sided corona treatment.Thus visuognosis lateral deviation vibration plate 3-1 is made.

(production of back side polarization plates 3-1)

Polarization plates A is changed to polarization plates B and the plate of λ/4 1 is changed to the plate of λ/2 1, in addition to this with visuognosis side Polarization plates 3-1 similarly makes back side polarization plates 3-1.So that angle formed by the absorption axiss of polarization plates and the plate of λ/2 1 is 45 ° (when watching protective film B from protective film C, the plate of λ/2 is configured in a manner of rotating 45 ° counterclockwise relative to the absorption axiss of polarization plates 1.) mode be bonded.About the phase difference value of the thickness direction at wavelength 590nm, visuognosis lateral deviation vibration plate is had Positive c plate and positive c plate possessed by back side polarization plates be identical.

Made visuognosis lateral deviation vibration plate 3-1 and back side polarization plates 3-1 are cut into vertical 155mm × horizontal 96mm Size.At this point, by make the absorption axiss of each polarization plates relative to 90 ° of longitudinal direction in a manner of cut respectively.

There is the glass surface fitting visuognosis lateral deviation vibration plate 3-1 of picture in the description of quasi- liquid crystal cells A and in its opposing face Glass surface be bonded back side polarization plates 3-1, make quasi- liquid crystal display panel.Axis is constituted as shown in Fig. 5 (b) at this time.

[embodiment 3-2]

Positive c plate 1 is changed to positive c plate 2, makes quasi- liquid crystal display panel in the same manner as embodiment 3-1 in addition to this.

[embodiment 3-3]

Positive c plate 1 is changed to positive c plate 3, makes quasi- liquid crystal display panel in the same manner as embodiment 3-1 in addition to this.

[embodiment 3-4]

The protective film A of visuognosis lateral deviation vibration plate 3-1 is changed to protective film D, in addition to this in the same manner as embodiment 3-1 Make quasi- liquid crystal display panel.

[embodiment 3-5]

Positive c plate 1 is changed to positive c plate 2, makes quasi- liquid crystal display panel in the same manner as embodiment 3-4 in addition to this.

[embodiment 3-6]

Positive c plate 1 is changed to positive c plate 3, makes quasi- liquid crystal display panel in the same manner as embodiment 3-4 in addition to this.

[embodiment 3-7]

(production of back side polarization plates 3-2)

Adhesive B is closed in the protective film C face paste of polarization plates B.At this point, the binding face to the face protective film C and adhesive B carries out Sided corona treatment.Then, positive c plate 1 is closed in the adhesive B face paste of made polarization plates B.At this point, also to the face adhesive B and positive C The binding face of plate 1 implements sided corona treatment.In turn, adhesive B is closed in 1 face paste of positive c plate of polarization plates B.At this point, also to polarization plates B 1 face of positive c plate and adhesive B binding face carry out sided corona treatment.Then, the plate of λ/2 1 is closed in the adhesive B face paste of polarization plates B. At this point, also implementing sided corona treatment to the binding face in the face adhesive B and the plate of λ/2 1.So that the absorption axiss of polarization plates and the institute of the plate of λ/2 1 at Angle be 45 ° (from protective film C watch protective film B when, in a manner of rotating 45 ° counterclockwise relative to the absorption axiss of polarization plates Configure the plate of λ/2 1.) mode be bonded.Finally, 1 face paste of the plate of λ/2 in polarization plates B closes adhesive A.At this point, also to the plate of λ/2 The binding face of 1 face and adhesive A carries out sided corona treatment.Thus back side polarization plates 3-2 is made.About the thickness at wavelength 590nm Spend the phase difference value in direction, positive c plate possessed by positive c plate possessed by visuognosis lateral deviation vibration plate 3-1 and back side polarization plates It is identical.

Made visuognosis lateral deviation vibration plate 3-1 and back side polarization plates 3-2 are cut into vertical 155mm × horizontal 96mm Size.At this point, by make the absorption axiss of each polarization plates relative to 90 ° of longitudinal direction in a manner of cut respectively.

There is the glass surface fitting visuognosis lateral deviation vibration plate 3-1 of picture in the description of quasi- liquid crystal cells A and in its opposing face Glass surface be bonded back side polarization plates 3-2, make quasi- liquid crystal display panel.Axis is constituted as shown in Fig. 5 (b) at this time.

[embodiment 3-8]

Positive c plate 1 is changed to positive c plate 2, makes quasi- liquid crystal display panel in the same manner as embodiment 3-7 in addition to this.

[embodiment 3-9]

Positive c plate 1 is changed to positive c plate 3, makes quasi- liquid crystal display panel in the same manner as embodiment 3-7 in addition to this.

[embodiment 3-10]

The protective film A of visuognosis lateral deviation vibration plate 3-1 is changed to protective film D, in addition to this in the same manner as embodiment 3-7 Make quasi- liquid crystal display panel.

[embodiment 3-11]

Positive c plate 1 is changed to positive c plate 2, makes quasi- liquid crystal display panel in the same manner as embodiment 3-10 in addition to this.

[embodiment 3-12]

Positive c plate 1 is changed to positive c plate 3, makes quasi- liquid crystal display panel in the same manner as embodiment 3-10 in addition to this.

[embodiment 3-13]

(production of visuognosis lateral deviation vibration plate 3-2)

Adhesive B is closed in the protective film C face paste of polarization plates A.At this point, the binding face to the face protective film C and adhesive B carries out Sided corona treatment.Then, positive c plate 1 is closed in the adhesive B face paste of made polarization plates A.At this point, to adhesive B and positive c plate 1 Binding face carries out sided corona treatment.In turn, adhesive B is closed in 1 face paste of positive c plate of polarization plates A.At this point, also to the positive C of polarization plates A The binding face of 1 face of plate and adhesive B carry out sided corona treatment.Then, the plate of λ/4 1 is closed in the adhesive B face paste of polarization plates A.At this point, Also sided corona treatment is implemented to the binding face in the face adhesive B and the plate of λ/4 1.So that angle formed by the absorption axiss of polarization plates and the plate of λ/4 1 It (when watching protective film C from protective film A, is configured in a manner of rotating 45 ° counterclockwise relative to the absorption axiss of polarization plates for 45 ° The plate of λ/4 1.) mode be bonded.Finally, 1 face paste of the plate of λ/4 in polarization plates A closes adhesive A.At this point, also to 1 face of the plate of λ/4 Sided corona treatment is carried out with the binding face of adhesive A.Thus visuognosis lateral deviation vibration plate 2 is made.About the thickness at wavelength 590nm The phase difference value in direction, positive c plate possessed by positive c plate and back side polarization plates 3-1 possessed by visuognosis lateral deviation vibration plate 3-2 It is identical.

Made visuognosis lateral deviation vibration plate 3-2 and back side polarization plates 3-1 are cut into vertical 155mm × horizontal 96mm Size.At this point, by make the absorption axiss of each polarization plates relative to 90 ° of longitudinal direction in a manner of cut respectively.

There is the glass surface fitting visuognosis lateral deviation vibration plate 3-2 of picture in the description of quasi- liquid crystal cells A and in its opposing face Glass surface be bonded back side polarization plates 3-1, make quasi- liquid crystal display panel.Axis is constituted as shown in Fig. 5 (b) at this time.

[embodiment 3-14]

Positive c plate 1 is changed to positive c plate 2, makes quasi- liquid crystal display panel in the same manner as embodiment 3-13 in addition to this.

[embodiment 3-15]

Positive c plate 1 is changed to positive c plate 3, makes quasi- liquid crystal display panel in the same manner as embodiment 3-13 in addition to this.

[embodiment 3-16]

The protective film A of visuognosis lateral deviation vibration plate 3-2 is changed to protective film D, it is same as embodiment 3-13 in addition to this Ground makes quasi- liquid crystal display panel.

[embodiment 3-17]

Positive c plate 1 is changed to positive c plate 2, makes quasi- liquid crystal display panel in the same manner as embodiment 3-16 in addition to this.

[embodiment 3-18]

Positive c plate 1 is changed to positive c plate 3, makes quasi- liquid crystal display panel in the same manner as embodiment 3-16 in addition to this.

[embodiment 3-19]

Made visuognosis lateral deviation vibration plate 3-2 and back side polarization plates 3-2 are cut into vertical 155mm × horizontal 96mm Size.At this point, by make the absorption axiss of each polarization plates relative to 90 ° of longitudinal direction in a manner of cut respectively.

There is the glass surface fitting visuognosis lateral deviation vibration plate 3-2 of picture in the description of quasi- liquid crystal cells A and in its opposing face Glass surface be bonded back side polarization plates 3-2, make quasi- liquid crystal display panel.Axis is constituted as shown in Fig. 5 (b) at this time.

[embodiment 3-20]

Positive c plate 1 is changed to positive c plate 2, makes quasi- liquid crystal display panel in the same manner as embodiment 3-19 in addition to this.

[embodiment 3-21]

Positive c plate 1 is changed to positive c plate 3, makes quasi- liquid crystal display panel in the same manner as embodiment 3-19 in addition to this.

[embodiment 3-22]

The protective film A of visuognosis lateral deviation vibration plate 2 is changed to protective film D, in addition to this in the same manner as embodiment 3-19 Make quasi- liquid crystal display panel.

[embodiment 3-23]

Positive c plate 1 is changed to positive c plate 2, makes quasi- liquid crystal display panel in the same manner as embodiment 3-22 in addition to this.

[embodiment 3-24]

Positive c plate 1 is changed to positive c plate 3, makes quasi- liquid crystal display panel in the same manner as embodiment 3-22 in addition to this.

[embodiment 3-25~3-48]

The plate of λ in embodiment 3-1~3-24/4 1 is changed to the plate of λ/4 2 and the plate of λ/2 1 is changed to the plate of λ/2 2, except this with Similarly make quasi- liquid crystal display panel respectively outside.The corresponding relationship of the number of each embodiment is as shown in table 3 below.

[table 3]

[embodiment 4-1]

(production of visuognosis lateral deviation vibration plate 4-1)

So that angle formed by the absorption axiss of polarization plates and the plate of λ/4 1 be -45 ° (when watching protective film C from protective film A, with The mode that absorption axiss relative to polarization plates rotate clockwise 45 ° configures the plate of λ/4 1.) mode be bonded.

Finally, 1 face paste of positive c plate in polarization plates A closes adhesive A.At this point, the also fitting to positive c plate 1 face and adhesive A Face carries out sided corona treatment.Thus visuognosis lateral deviation vibration plate 4-1 is made.

(production of back side polarization plates 4-1)

Polarization plates A is changed to polarization plates B and the plate of λ/4 1 is changed to the plate of λ/2 1, in addition to this with visuognosis side Polarization plates 4-1 similarly makes back side polarization plates 4-1.That is, being bonded on the protective film C in polarization plates B via adhesive B The plate of λ/2 1 is then bonded positive c plate 1 via adhesive B, adhesive A is finally laminated in positive c plate.So that the absorption axiss of polarization plates It is 45 ° with angle formed by the plate of λ/2 1 (when watching protective film B from protective film C, to revolve counterclockwise with the absorption axiss relative to polarization plates Turn 45 ° of mode and configures the plate of λ/2 1.) mode be bonded.About the phase difference value of the thickness direction at wavelength 590nm, depending on Feel positive c plate possessed by identification lateral deviation vibration plate and positive c plate possessed by back side polarization plates is identical.

Made visuognosis lateral deviation vibration plate 4-1 and back side polarization plates 4-1 are cut into vertical 155mm × horizontal 96mm Size.At this point, by make the absorption axiss of each polarization plates relative to 90 ° of longitudinal direction in a manner of cut respectively.

There is the glass surface fitting visuognosis lateral deviation vibration plate 4-1 of picture in the description of quasi- liquid crystal cells B and in its opposing face Glass surface be bonded back side polarization plates 4-1, make quasi- liquid crystal display panel.Axis is constituted as shown in Fig. 6 (b) at this time.

[embodiment 4-2]

Positive c plate 1 is changed to positive c plate 2, makes quasi- liquid crystal display panel in the same manner as embodiment 4-1 in addition to this.

[embodiment 4-3]

Positive c plate 1 is changed to positive c plate 3, makes quasi- liquid crystal display panel in the same manner as embodiment 4-1 in addition to this.

[embodiment 4-4]

The protective film A of visuognosis lateral deviation vibration plate 4-1 is changed to protective film D, in addition to this in the same manner as embodiment 4-1 Make quasi- liquid crystal display panel.

[embodiment 4-5]

Positive c plate 1 is changed to positive c plate 2, makes quasi- liquid crystal display panel in the same manner as embodiment 4-4 in addition to this.

[embodiment 4-6]

Positive c plate 1 is changed to positive c plate 3, makes quasi- liquid crystal display panel in the same manner as embodiment 4-4 in addition to this.

[embodiment 4-7]

(production of back side polarization plates 4-2)

Adhesive B is closed in the protective film C face paste of polarization plates B.At this point, the binding face to the face protective film C and adhesive B carries out Sided corona treatment.Then, positive c plate 1 is folded in the adhesive B surface layer of made polarization plates B.At this point, to adhesive B and positive c plate 1 Binding face carries out sided corona treatment.In turn, adhesive B is closed in 1 face paste of positive c plate of polarization plates B.At this point, also to the positive C of polarization plates B The binding face of 1 face of plate and adhesive B carry out sided corona treatment.Then, the plate of λ/2 1 is closed in the adhesive B face paste of polarization plates B.At this point, Also sided corona treatment is implemented to the binding face in the face adhesive B and the plate of λ/2 1.So that angle formed by the absorption axiss of polarization plates and the plate of λ/2 1 It (when watching protective film B from protective film C, is configured in a manner of rotating 45 ° counterclockwise relative to the absorption axiss of polarization plates for 45 ° The plate of λ/2 1.) mode be bonded.Finally, 1 face paste of the plate of λ/2 in polarization plates B closes adhesive A.At this point, also to 1 face of the plate of λ/2 Sided corona treatment is carried out with the binding face of adhesive A.Thus back side polarization plates 4-2 is made.

Made visuognosis lateral deviation vibration plate 4-1 and back side polarization plates 4-2 are cut into vertical 155mm × horizontal 96mm Size.At this point, by make the absorption axiss of each polarization plates relative to 90 ° of longitudinal direction in a manner of cut respectively.

There is the glass surface fitting visuognosis lateral deviation vibration plate 4-1 of picture in the description of quasi- liquid crystal cells B and in its opposing face Glass surface be bonded back side polarization plates 4-2, make quasi- liquid crystal display panel.Axis is constituted as shown in Fig. 6 (b) at this time.

[embodiment 4-8]

Positive c plate 1 is changed to positive c plate 2, makes quasi- liquid crystal display panel in the same manner as embodiment 4-7 in addition to this.

[embodiment 4-9]

Positive c plate 1 is changed to positive c plate 3, makes quasi- liquid crystal display panel in the same manner as embodiment 4-7 in addition to this.

[embodiment 4-10]

The protective film A of visuognosis lateral deviation vibration plate 4-1 is changed to protective film D, in addition to this in the same manner as embodiment 4-7 Make quasi- liquid crystal display panel.

[embodiment 4-11]

Positive c plate 1 is changed to positive c plate 2, makes quasi- liquid crystal display panel in the same manner as embodiment 4-10 in addition to this.

[embodiment 4-12]

Positive c plate 1 is changed to positive c plate 3, makes quasi- liquid crystal display panel in the same manner as embodiment 4-10 in addition to this.

[embodiment 4-13]

(production of visuognosis lateral deviation vibration plate 4-2)

Adhesive B is closed in the protective film C face paste of polarization plates A.At this point, the binding face to the face protective film C and adhesive B carries out Sided corona treatment.Then, positive c plate 1 is folded in the adhesive B surface layer of made polarization plates A.At this point, to adhesive B and positive c plate 1 Binding face carries out sided corona treatment.In turn, adhesive B is closed in 1 face paste of positive c plate of polarization plates A.At this point, also to the positive C of polarization plates A The binding face of 1 face of plate and adhesive B carry out sided corona treatment.Then, the plate of λ/4 1 is closed in the adhesive B face paste of polarization plates A.At this point, Also sided corona treatment is implemented to the binding face in the face adhesive B and the plate of λ/4 1.So that angle formed by the absorption axiss of polarization plates and the plate of λ/4 1 It (when watching protective film C from protective film A, is configured in such a way that the absorption axiss relative to polarization plates rotate clockwise 45 ° for -45 ° The plate of λ/4 1.) mode be bonded.Finally, 1 face paste of the plate of λ/4 in polarization plates A closes adhesive A.At this point, also to 1 face of the plate of λ/4 Sided corona treatment is carried out with the binding face of adhesive A.Thus visuognosis lateral deviation vibration plate 4-2 is made.

Made visuognosis lateral deviation vibration plate 4-2 and back side polarization plates 4-1 are cut into vertical 155mm × horizontal 96mm Size.At this point, by make the absorption axiss of each polarization plates relative to 90 ° of longitudinal direction in a manner of cut respectively.

There is the glass surface fitting visuognosis lateral deviation vibration plate 4-2 of picture in the description of quasi- liquid crystal cells B and in its opposing face Glass surface be bonded back side polarization plates 4-1, make quasi- liquid crystal display panel.Axis is constituted as shown in Fig. 6 (b) at this time.

[embodiment 4-14]

Positive c plate 1 is changed to positive c plate 2, makes quasi- liquid crystal display panel in the same manner as embodiment 4-13 in addition to this.

[embodiment 4-15]

Positive c plate 1 is changed to positive c plate 3, makes quasi- liquid crystal display panel in the same manner as embodiment 4-13 in addition to this.

[embodiment 4-16]

The protective film A of visuognosis lateral deviation vibration plate 4-2 is changed to protective film D, it is same as embodiment 4-13 in addition to this Ground makes quasi- liquid crystal display panel.

[embodiment 4-17]

Positive c plate 1 is changed to positive c plate 2, makes quasi- liquid crystal display panel in the same manner as embodiment 4-16 in addition to this.

[embodiment 4-18]

Positive c plate 1 is changed to positive c plate 3, makes quasi- liquid crystal display panel in the same manner as embodiment 4-16 in addition to this.

[embodiment 4-19]

Made visuognosis lateral deviation vibration plate 4-2 and back side polarization plates 4-2 are cut into vertical 155mm × horizontal 96mm Size.At this point, by make the absorption axiss of each polarization plates relative to 90 ° of longitudinal direction in a manner of cut respectively.

There is the glass surface fitting visuognosis lateral deviation vibration plate 4-2 of picture in the description of quasi- liquid crystal cells B and in its opposing face Glass surface be bonded back side polarization plates 4-2, make quasi- liquid crystal display panel.Axis is constituted as shown in Fig. 6 (b) at this time.

[embodiment 4-20]

Positive c plate 1 is changed to positive c plate 2, makes quasi- liquid crystal display panel in the same manner as embodiment 4-19 in addition to this.

[embodiment 4-21]

Positive c plate 1 is changed to positive c plate 3, makes quasi- liquid crystal display panel in the same manner as embodiment 4-19 in addition to this.

[embodiment 4-22]

The protective film A of visuognosis lateral deviation vibration plate 4-2 is changed to protective film D, it is same as embodiment 4-19 in addition to this Ground makes quasi- liquid crystal display panel.

[embodiment 4-23]

Positive c plate 1 is changed to positive c plate 2, makes quasi- liquid crystal display panel in the same manner as embodiment 4-22 in addition to this.

[embodiment 4-24]

Positive c plate 1 is changed to positive c plate 3, makes quasi- liquid crystal display panel in the same manner as embodiment 4-22 in addition to this.

[embodiment 4-25~4-48]

The plate of λ in embodiment 4-1~4-24/4 1 is changed to the plate of λ/4 2 and the plate of λ/2 1 is changed to the plate of λ/2 2, except this with Similarly make quasi- liquid crystal display panel respectively outside.The corresponding relationship of the number of each embodiment is as shown in table 4 below.

[table 4]

In the quasi- liquid crystal panel to made backlight so made, will be confirmed whether can visuognosis to figure It draws.Visibility is confirmed under extraneous light, as a result, in all quasi- liquid crystal display panels, even if 10000Lux visibility Also good

INDUSTRIAL APPLICABILITY

Polarization board group according to the present invention, is capable of providing a kind of liquid crystal display device, which is able to suppress The reflection of extraneous light, even if also ensuring that good visibility under the strong environment of the extraneous light as outdoor, because This is useful.

Symbol description

10 visuognosis lateral deviation vibration plates

20 back side polarization plates

30,50 polarization plates

31a, 31b, 51a, 51b protective film

36 surface-treated layers

32,52 polarizing film

32 ' first polarizing films

52 ' second polarizing films

The plate of 34 λ/4

The plate of 54 λ/2

35,55 positive c plate

61 brightness enhancement films

60 liquid crystal cells

The absorption axiss of 1 polarization plates

The slow axis of the plate of 2 λ/4

The initial orientation direction of 3 liquid crystal cells

The slow axis of the plate of 4 λ/2

The absorption axiss of 5 polarization plates

Claims

1. a kind of polarization board group, for comprising visuognosis lateral deviation vibration plate and back side polarization plates, and for respectively with phase in face Potential difference value is the polarization board group of the two sides fitting of the IPS mode liquid crystal cell of 100nm~200nm,

The absorption axiss of the visuognosis lateral deviation vibration plate and the absorption axiss of the back side polarization plates are substantially orthogonal,

The visuognosis lateral deviation vibration plate has polarizing film and the plate of λ/4,

Angle formed by the absorption axiss of the visuognosis lateral deviation vibration plate and the slow axis of the plate of the λ/4 is substantially 45 °,

The slow axis of the plate of the λ/4 is configured to substantially orthogonal relative to the initial orientation direction of the IPS mode liquid crystal cell Relationship.

2. polarization board group according to claim 1, wherein

The visuognosis lateral deviation vibration plate includes the positive c plate being configured between the liquid crystal cells and the plate of the λ/4.

3. polarization board group according to claim 1, wherein

The visuognosis lateral deviation vibration plate includes to be configured between the polarizing film of the visuognosis lateral deviation vibration plate and the plate of the λ/4 Positive c plate.

4. polarization board group according to claim 2 or 3, wherein

The phase difference value of the thickness direction of the positive c plate is -50nm~-150nm.

5. a kind of IPS mode LCD passes through the IPS mode liquid crystal that phase difference value is 100nm~200nm in face Unit configures polarization board group according to any one of claims 1 to 4 and forms.

6. IPS mode LCD according to claim 5, wherein

The size of IPS mode LCD is diagonal 15 inches or less.

7. a kind of polarization board group, for comprising visuognosis lateral deviation vibration plate and back side polarization plates, and for being fitted in face respectively Interior phase difference value is the polarization board group on the two sides of the IPS mode liquid crystal cell of 400nm~500nm,

The slow axis of the plate of the λ/4 is configured to substantially parallel relative to the initial orientation direction of the IPS mode liquid crystal cell Relationship.

8. polarization board group according to claim 7, wherein

9. polarization board group according to claim 7, wherein

The visuognosis lateral deviation vibration plate includes the positive c plate being configured between the polarizing film and the plate of the λ/4.

10. polarization board group according to claim 8 or claim 9, wherein

11. a kind of IPS mode LCD passes through the IPS mode liquid that phase difference value is 400nm~500nm in face Polarization board group described in any one of brilliant unit configuration claim 7~10 forms.

12. IPS mode LCD according to claim 11, wherein

The size of IPS mode LCD is diagonal 15 inches or less.

13. a kind of polarization board group, for comprising visuognosis lateral deviation vibration plate and back side polarization plates, and for being fitted in face respectively Interior phase difference value is the polarization board group on the two sides of the IPS mode liquid crystal cell of 100nm~200nm,

The absorption axiss of the visuognosis lateral deviation vibration plate and the absorption axiss of the back side polarization plates are substantially parallel,

The visuognosis lateral deviation vibration plate has the first polarizing film and the plate of λ/4,

The plate of the λ/4 is configured between first polarizing film and the liquid crystal cells,

The back side polarization plates have the second polarizing film and the plate of λ/2,

Angle formed by the absorption axiss of the back side polarization plates and the slow axis of the plate of the λ/2 is substantially 45 °,

The slow axis of the slow axis of the plate of the λ/4 and the plate of the λ/2 be it is substantially orthogonal,

14. polarization board group according to claim 13, wherein

The visuognosis lateral deviation vibration plate includes the positive c plate being configured between the liquid crystal cells and the plate of the λ/4,

The back side polarization plates include the positive c plate being configured between the liquid crystal cells and the plate of the λ/2.

15. polarization board group according to claim 13, wherein

The back side polarization plates include the positive c plate being configured between second polarizing film and the plate of the λ/2.

16. polarization board group according to claim 13, wherein

The visuognosis lateral deviation vibration plate includes the positive c plate being configured between first polarizing film and the plate of the λ/4,

17. polarization board group according to claim 13, wherein

18. polarization board group described in any one of 4~17 according to claim 1, wherein

The thickness side of positive c plate possessed by positive c plate possessed by the visuognosis lateral deviation vibration plate and the back side polarization plates To phase difference value it is roughly equal.

19. polarization board group described in any one of 4~18 according to claim 1, wherein

20. a kind of IPS mode LCD passes through the IPS mode liquid that phase difference value is 100nm~200nm in face Polarization board group described in any one of brilliant unit configuration claim 13~19 forms.

21. IPS mode LCD according to claim 20, wherein

The size of IPS mode LCD is diagonal 15 inches or less.

22. a kind of polarization board group, for comprising visuognosis lateral deviation vibration plate and back side polarization plates, and for being fitted in face respectively Interior phase difference value is the polarization board group on the two sides of the IPS mode liquid crystal cell of 400nm~500nm,

23. polarization board group according to claim 22, wherein

24. polarization board group according to claim 22, wherein

25. polarization board group according to claim 22, wherein

26. polarization board group according to claim 22, wherein

27. the polarization board group according to any one of claim 23~26, wherein

28. the polarization board group according to any one of claim 23~27, wherein

29. a kind of IPS mode LCD passes through the IPS mode liquid that phase difference value is 400nm~500nm in face Polarization board group described in any one of brilliant unit configuration claim 22~28 forms.

30. IPS mode LCD according to claim 29, wherein

The size of IPS mode LCD is diagonal 15 inches or less.