CN208351195U

CN208351195U - Structural body, transparent display, lighting device, liquid crystal display device and information display device

Info

Publication number: CN208351195U
Application number: CN201690001101.3U
Authority: CN
Inventors: 新山聪; 末永幸太郎
Original assignee: AGC Inc
Current assignee: AGC Inc
Priority date: 2015-08-25
Filing date: 2016-08-25
Publication date: 2019-01-08
Anticipated expiration: 2026-08-25
Also published as: WO2017033997A1; JPWO2017033997A1; JP6658758B2

Abstract

The utility model offer displays contrast high structural body.In addition, the purpose of the utility model is to provide the transparent display, the lighting devices that have used above described structure and light source.Have above-mentioned transparent display, the liquid crystal display device of lighting device and transparent image display panel, information display device in addition, also providing.Structural body includes a pair of of transparent substrate that electrode is formed at least one party, the electrooptics functional layer being clamped between transparent substrate and the transparent panel being laminated on at least one party of transparent substrate by optical junction layer, electrooptics functional layer can control the state for making incident light transmissive state and making scatter incident light by the application of voltage, in the state of making incident light transmission, the transmissivity of the measurement angle of following formula 3 is 60% or more, in the wavelength region that optical path length is 50mm, wavelength 400nm~700nm, the average internal transmissivity of transparent panel is 80% or more.(measurement angle=arcsin (refractive index/transparent panel refractive index of the medium of the part other than the optical junction layer adjacent with transparent panel) formula 3).

Description

Structural body, transparent display, lighting device, liquid crystal display device and information are shown Device

Technical field

The utility model relates to have the function of by applying and not applying the changed electrooptics of voltage optical characteristics The structural body that the high transparent panel of the optical element and transmissivity of layer is combined by optical junction layer.

In addition, being related to the transparent display with above described structure, the lighting device with above described structure, there is the photograph The liquid crystal display device of bright device and information display device with above described structure.

Background technique

The electrooptics functional layer of the known solidfied material comprising liquid-crystal compounds and resin is sandwiched in a pair of electroded substrate Between made of liquid crystal optical device (hereinafter referred to as optical element) (referring to patent document 1).

Electrooptic element described in Patent Document 1 transparent state when not applying voltage to electrooptics functional layer, is being applied When making alive, the long axis of the molecule of liquid-crystal compounds is according to its dielectric constant anisotropy, along direction (the i.e., dielectric of electric field Constant anisotropy is positive) or its normal direction (i.e., dielectric constant anisotropy is negative) orientation.At this point, by by adjacent The orientation of the solidfied material limitation liquid-crystal compounds of resin, interferes uniaxial orientation, obtains the light that will be incident to electrooptics functional layer The state of scattering.Transmission of such optical element when making to be incident to the light transmission of electrooptics functional layer, in oblique incidence direction The high aspect of rate can be distinguished with previous polymer dispersion type liquid crystal.Therefore, such optical element is because its optics is special Property, exclusive use optical element is proposed, the scheme utilized as dimming glass or display device.

Optical element described in Patent Document 1 is by playing optics member for the environment light transmission and scattering that are incident to element The function of part is (for example, in a display device, show text using the contrast of transmission and the scattering of the environment light for being incident to element The function of the information such as word).Thus, for example, being scattered if the intensity of the environment light for being incident to element of night or dark situation etc. is weak When identity decline, the contrast ratio decline of transmission and scattering therefore can not play one's part to the full as optical element.

In contrast, proposing image display device in patent document 2, it is provided with optical element and light source, above-mentioned light Source the non-viewing face of optical element outside and with from the viewing surface of optical element can not Direct Recognition angle to optics member Part is illuminated.By using above-mentioned composition, even if the light of environment light is weaker, observer can also identify display.

In addition, as the transparent display for being free of liquid-crystal compounds, it is known that transparent organic LED display device.Organic LED Display device is due to being self-luminous display, so the identity of illumination region is good and can provide contrast high display.

Existing technical literature

Patent document

Patent document 1: Japanese Patent Laid-Open 2000-119656 bulletin

Patent document 2: Japanese Patent Laid-Open 2004-157492 bulletin

Utility model content

Utility model technical problem to be solved

But the image display device of patent document 2 between optical element and illumination because exist across air layer Physical distance, so illumination light leaks out to the part other than optical element and can not improve contrast, there are so-called light leakages Problem, and in the transparent part of optical element, the place other than optical element is illuminated through optical element, is existed by illumination light The problem for showing that the light utilization efficiency in being formed is low of the contrast of transmission and scattering based on optical element.When light utilization ratio is low When, in order to obtain the good bright display of identity, needs to increase light source number or carry out the illumination of high brightness, include ensuring that The physical distance across air layer between optical element and illumination, image display device volume is big, be applicable in using upper There is also limitations.

On the other hand, transparent organic LED display device is electric current driving, so the transparent electrode for needing resistance value low.It is right In the low transparent electrode of resistance value, thicker conductive film is needed, there is a problem of that the transmissivity of transparent part is low.In addition, organic LED is formed by the film of multilayer, and due to the interference of the multilayer film, there are transmissive portion colorings or transmitted light, and asking for light infiltration occurs Topic.

The utility model is completed in view of above-mentioned technical problem, its purpose is to provide a kind of structural body, wherein light The high transparency that the transparent part for learning element shows the coloring that transmitted light does not occur or light seeps, scattered portion is independent of environment The intensity of light and have good identity, to display contrast height.

In addition, the purpose of the utility model is to provide the transparent displays for having used above described structure and light source.In addition, this The purpose of utility model also resides in the liquid crystal display device for providing and having above-mentioned transparent display and transparent image display panel.

Technical scheme applied to solve the technical problem

The structural body of the utility model has a pair of of the transparent substrate for being formed with electrode at least one party, is clipped in above-mentioned one It is overlapped between the electrooptics functional layer transparent substrate and on at least one party of above-mentioned transparent substrate by optical junction layer Transparent panel, above-mentioned electrooptics functional layer can control by the application of voltage to be made incident light transmissive state and makes scatter incident light State, in the state of making incident light transmission, the measurement of the following formula 3 when the normal direction of above-mentioned transparent substrate is set as 0 ° The transmissivity of angle is 60% or more,

Measure angle=arcsin (refractive index of the medium of the part other than the optical junction layer adjacent with transparent panel/saturating The refractive index of isotropic disk) ... formula 3

In the wavelength region that optical path length is 50mm, wavelength 400nm~700nm, the average internal of above-mentioned transparent panel is saturating Penetrating rate is 80% or more.

In the transparent display of the utility model, the transmissivity of hyalomere is 70% or more, not from display surface phase Pair side incidence light in the state of, the brightness contrast rate of hyalomere and scattering part is 4 or more.

In the lighting device of the utility model, the transmissivity of hyalomere is 70% or more, not from opposite with display surface Side incidence light in the state of, the brightness contrast rate of hyalomere and scattering part is 4 or more.

The liquid crystal display device of the utility model has liquid crystal display panel and above-mentioned lighting device.

In the information display device of the utility model, the transmissivity of transparent part is 70% or more, not from display In the state of the light of the opposite side incidence in face, the brightness contrast rate of hyalomere and scattering part is 4 or more.

In the present invention, above-mentioned lighting device, liquid crystal display device and information display device are above-mentioned transparent The example of the specific device of the purposes of display.In the present specification, it is shown as lighting device, liquid crystal display device and information The explanation of device can quote the explanation of transparent display.In addition, the explanation as information display device, can quote liquid crystal display The explanation of device.

Invention effect

The structural body of the utility model is high by the transparency of transparent part, has dissipating for the intensity independent of environment light The good identity of part is penetrated, to drive electrooptic element that can provide contrast high display.Because light source can be improved Light utilization ratio so not needing the illumination of high brightness, and has no need to ensure that between optical element and illumination across air layer Physical distance, so can reduce the volume of image display device, the limitation of application range is few.

In addition, the transparent display of the utility model can be in the case where not depending on the intensity of environment light, by light It learns element to apply voltage and do not apply voltage, switches pellucidity and luminance, lighting device, liquid crystal display device can be used for And information display device.

In addition, the liquid crystal display device of the utility model has by applying voltage to optical element and not applying voltage, The lighting unit that can make pellucidity variation and the liquid crystal display panel for changing illumination intensity using scattered portion, can improve liquid crystal Showing device displays contrast.

In addition, the information display device of the utility model has by applying voltage to optical element and not applying voltage, The lighting unit that can make pellucidity variation and the electrooptics functional layer for changing illumination intensity using scattered portion, can improve letter Breath display device displays contrast.

Detailed description of the invention

Fig. 1 is the schematic sectional view of the structural body of the utility model first embodiment.

Fig. 2 (A) is the figure for indicating the movement of structural body of the embodiments of the present invention.

Fig. 2 (B) is the figure for indicating the movement of structural body of the embodiments of the present invention.

Fig. 3 is the schematic sectional view of the structural body of the utility model second embodiment.

Fig. 4 is the schematic sectional view of the structural body of the utility model second embodiment.

Diagrammatic top view when Fig. 5 is 5 side of the slave transparent substrate viewing of the structural body of the utility model second embodiment.

Fig. 6 is the schematic sectional view of the structural body of the utility model third embodiment.

Fig. 7 is the schematic sectional view of the structural body of the 4th embodiment of the utility model.

Fig. 8 is the diagrammatic top view of the transparent electrode of the structural body of the 4th embodiment of the utility model.

Fig. 9 is the schematic sectional view of the structural body of the 5th embodiment of the utility model.

Figure 10 is the schematic sectional view of the structural body of the utility model sixth embodiment.

Figure 11 is the schematic sectional view of the transparent display of the 7th embodiment of the utility model.

Showing when Figure 12 (A) is 5 side of the slave transparent substrate viewing of the transparent display of the 7th embodiment of the utility model Meaning top view.

Showing when Figure 12 (B) is 5 side of the slave transparent substrate viewing of the transparent display of the 7th embodiment of the utility model Meaning top view.

Signal when Figure 13 is 5 side of the slave transparent substrate viewing of the transparent display of the 7th embodiment of the utility model is bowed View.

Figure 14 is the schematic sectional view of the liquid crystal display device of the 8th embodiment of the utility model.

Figure 15 is the schematic sectional view of the variation of the liquid crystal display device of the 8th embodiment of the utility model.

Figure 16 is the schematic sectional view of the variation of the liquid crystal display device of the 8th embodiment of the utility model.

Figure 17 is the schematic sectional view of the structural body of the embodiments of the present invention.

Figure 18 is the schematic sectional view of the structural body of the comparative example of the utility model.

Specific embodiment

[structural body]

Referring to Fig.1~Fig. 9 is illustrated an embodiment of the structural body of the utility model.

(first embodiment)

Referring to Fig.1~Fig. 2 is illustrated the first embodiment of the structural body of the utility model.

Fig. 1 is the cross-sectional view of the structural body 100 of present embodiment.As shown in Figure 1, structural body 100 has transparent panel 1, light Learn bonding layer 2, a pair of of transparent substrate 3,5 and the electrooptics functional layer 4 being clipped between a pair of of transparent substrate.Transparent panel 1 and one are thoroughly Integration is laminated by optical junction layer 2 in bright substrate 3.In the present embodiment, a pair of of transparent substrate 3,5 and electrooptics The face that functional layer 4 contacts is equipped with transparent electrode layer (not shown).In this specification, transparent electrode layer is also referred to as transparent electricity Pole or referred to as electrode.

It may also set up insulating layer or liquid crystal aligning layer between transparent electrode layer and electrooptics functional layer 4.In addition, transparent Substrate 3,5 with the discontiguous face of electrooptics functional layer part or all may also set up UV-absorbing layer, anti-reflection layer, Reflecting layer, semi-reflective layer, anti-fingerprint adhesive layer etc..

In the following description, sometimes by a pair of of transparent substrate 3,5 and the electrooptics function being clipped between a pair of of transparent substrate The laminated body of layer 4 is known as optical element 6.

Fig. 2 (A) and Fig. 2 (B) is to indicate in the case where the normal direction of transparent panel 1 is set as 0 °, so that in transparent panel 1 Inside from transparent panel towards the medium adjacent with transparent panel light reach following formula 3' indicate angle (referred to as critical angle) with On condition, the light 7 for being incident to transparent panel 1 is made into incident light transmissive state (A) in optical element and makes scatter incident light The figure of guide-lighting situation is carried out under state (B), in structural body 100.

Critical angle=arcsin (the refractive index of the medium of the part other than the optical junction layer adjacent with transparent panel/transparent The refractive index of plate) ... formula 3'

The structural body 100 of present embodiment can control the optical characteristics of electrooptics functional layer 4 by driving optical element 6.

Fig. 2 (A) is indicated so as to reach in light of the inside of transparent panel 1 from transparent panel towards the medium adjacent with transparent panel Condition more than above-mentioned critical angle is incident to the figure for the state that the light 7 of transparent panel 1 transmits in optical element 6；Fig. 2 (B) is table Show in optical element 6, is similarly incident to what the light 7 of transparent panel 1 was guided in the state of scattering, in structural body 100 The figure of situation.The structural body 100 of present embodiment can control the optics of electrooptics functional layer 4 special by driving optical element 6 Property.

In present embodiment, following two form is can be used in optical element 6: applying alive state (i.e., normality) Under make incident light transmission, make in the state of applying voltage the form of scatter incident light (hereinafter, the form is known as normality transmission Type)；And makes scatter incident light under normal conditions, makes incident light transmissive form (hereinafter, by the shape in the state of applying voltage State is known as normality scatter-type).

In Fig. 2 (A), the reflection and scattering of light are hardly happened in the inside of structural body 100.Therefore, in transparent panel 1 Interarea 1s and transparent substrate 5 the angle (critical angle) that is totally reflected of interarea 5s more than angle be incident to transparent panel 1 The light 7 of one end is guide-lighting in structural body 100, and light will not be leaked out from the interarea 5s of transparent substrate 5 and the interarea 1s of transparent panel 1.

In this case, for example, even if light is incident to one end of transparent panel 1, for being watched from the side interarea 5s of transparent substrate 5 For the observer of structural body, it is also transparent that structural body, which seems,.

In Fig. 2 (B), in the electrooptics functional layer 4 of structural body 100, incident light is scattered.In addition, being dissipated In the light penetrated, the master of critical angle light below on the interarea 1s of transparent panel 1 and the interarea 5s of transparent substrate 5 from transparent substrate 5 The interarea 1s of face 5s and transparent panel 1 is projected.

In this case, for example, when light 7 is incident to one end of transparent panel 1, from the side interarea 5s of transparent substrate 5 or from saturating The observer of 1 side of isotropic disk viewing structural body 100 can confirm that scattering part is illumination region.Luminous from the scattering part is in transparent panel 1 and optical element 6 the incident light that is guided of inside due to electrooptics functional layer optical characteristics and the light that is removed (hereinafter referred to as It shines for leaded light).

In the structural body 100 of present embodiment, according to the shape for the electrode for being set to transparent substrate 3 and 5 or (not shown) The electric signal of voltage control panel can freely design the structure of scattering part.

For example, being one in show electrode and forming electrode in the whole face (whole face fills shape) of transparent substrate 3,5, to whole In the case that face applies voltage, in the state of Fig. 2 (B), knot is watched from the side interarea 5s of transparent substrate 5 or from 1 side of transparent panel The observer of structure body 100 can be appreciated that the luminous appearance of whole face.

For example, in the state of Fig. 2 (B), light is only in the case where dotted electrode to be formed on transparent substrate 3,5 It is scattered in the place for being formed with electrode.In this case, watching knot from the side interarea 5s of transparent substrate 5 or from 1 side of transparent panel The observer of structure body 100 can identify the information such as text and image according to the electric signal of configuration and the application of point.

The structural body 100 of present embodiment has transparent panel 1, and transparent panel 1 and optical element 6 pass through optical junction layer 2 Stacking integration.Therefore, under the situation for having environment light, earth energy environment light same plays the function of optical element 6 Energy.In addition, even if weak or without by the edge part incident light from transparent panel 1, also can under the situation of environment light in environment light It realizes that the leaded light of scattering part shines, the display function of optical element 6 can be played.

(transparent panel 1)

In the wavelength region that optical path length is 50mm, wavelength 400nm~700nm, the average internal transmissivity of transparent panel 1 It is 80% or more.The average internal transmissivity of transparent panel 1 is high, so light is not easy to decay in transparent panel 1.Above-mentioned average internal Transmissivity more preferable 85% or more, further preferred 90% or more.

In this specification, above-mentioned average internal transmissivity is that certain optical path length is being denoted as L (cm), is remembering incident intensity For I₀(%), the intensity that will transmit through the light after certain optical path length L (cm) are denoted as I₁It (%), will be by the attenuation rate of the caused light of reflection When being denoted as R (%), the value that is indicated with following formula 1.

logT_in=(log (I₁/I₀)-logR) ... formula 1

Tristimulus when the preferred optical path length of transparent panel 1 is 5cm in the XYZ colour system in JIS Z8701 (annex) The Y value of value is 90% or more.Above-mentioned Y value more preferable 91% or more, further preferred 93% or more.Y value is calculated according to following formula 2 Out.

Y=Σ (S (λ) × y (λ)) ... formula 2

Wherein, S (λ) is the transmissivity of each wavelength, and y (λ) is the weighting coefficient of each wavelength.Therefore, Σ (S (λ) × y (λ)) It is the summation for the result that the weighting coefficient of each wavelength is multiplied with its transmissivity.In addition, the M in the retina cell of y (λ) and eye Cone (G cone/green) is corresponding, most strong to the light reaction of wavelength 535nm.

The thickness of transparent panel 1 is preferably 0.5~10mm.If the thickness of transparent panel 1 is less than 0.5mm, in the table of transparent panel 1 The number that face, light reflect increases, and the decaying of the light caused by reflecting becomes larger, the internal transmission rate drop in effective optical path length It is low.On the other hand, if the thickness of transparent panel 1 is more than 10mm, structural body 100 becomes thicker, it is difficult to operate.Transparent panel 1 Thickness more preferable 0.7~5mm, further preferred 1.0~2.5mm.

In the case where providing transparent display, transparent panel 1 is spread on the interarea 1s with external connection preferably without setting Pattern and dotted micro concavo-convex etc..If electrooptics functional layer 4 is in the state through incident light using such composition Under, the high transparency of structural body 100 can be kept.

The thermal expansion of the transparent substrate 3 for the side that the thermalexpansioncoefficientα 1 of transparent panel 1 is connect with across optical junction layer 2 The ratio between factor alpha 2 (1/ α 2 of α) is preferably 5 hereinafter, more preferable 2 or less.If the ratio of thermal expansion coefficient is within the above range, Structural body 100 can be used in the environment of high temperature and low temperature.That is, if thermal expansion difference within the above range, be not susceptible to by Transparent panel 1 and transparent substrate 3 it is of different sizes caused by joint interface destruction.

For example, the thermalexpansioncoefficientα 2 of glass is 0.5~10ppm/ in the case where using glass as transparent substrate 3 DEG C, so the thermalexpansioncoefficientα 1 of transparent panel 1 is more preferably at least 20ppm/ DEG C or less.

As the material of transparent panel 1, acrylic resin or glass can be used.From the ease of manufacture of large-scale structural body From the point of view of viewpoint, preferred glass.In addition, being easy the ratio of thermal expansion coefficient being set as above-mentioned in the case where transparent substrate 3 is glass Range, moreover it is possible to reduce refringence, it is advantageous to use glass as transparent panel 1.

In glass as transparent panel 1, with Fe₂O₃The total content A of the iron of conversion is 100 mass ppm hereinafter, in satisfaction The aspect that the optical path length stated is 50mm, the average internal transmissivity of 400~700nm of wavelength is 80% or more is preferably, more Preferably 40 mass ppm are hereinafter, further preferred 20 mass ppm or less.On the other hand, the total content A of the iron of above-mentioned glass is 5 Quality ppm or more, be in terms of the meltability of glass can be improved when manufacturing the oxide glass of multicomponent system it is preferred, it is more excellent Select 8 mass ppm or more, further preferred 10 mass ppm or more.In addition, the total content A of the iron of above-mentioned glass can be by manufacturing The amount of the iron added when glass is adjusted.

In the present specification, by the total content A of the iron of glass with Fe₂O₃Content be indicated, but iron present in glass It is not all as Fe³⁺(iron of trivalent) exists.In general, existing simultaneously Fe in glass³⁺And Fe²⁺(iron of divalent).

Fe²⁺And Fe³⁺Exist in the range of 400~700nm of wavelength and absorb, but Fe²⁺Absorption coefficient (11cm^-1Mol^-1) Compare Fe³⁺Absorption coefficient (0.96cm^-1Mol^-1) order of magnitude greater, therefore the internal transmission rate of 400~700nm of wavelength can be made It further decreases.Therefore, Fe²⁺Content it is few, improve 400~700nm of wavelength internal transmission rate in terms of be preferred.

The Fe of above-mentioned glass²⁺Content B be 20 mass ppm hereinafter, meeting above-mentioned visible light in effective optical path length It is in terms of the average internal transmissivity in domain preferably, more preferable 10 mass ppm is hereinafter, further preferred 5 mass ppm or less. On the other hand, the Fe of above-mentioned glass²⁺Content B be 0.01 mass ppm or more, manufacture multicomponent system oxide glass when energy Be in terms of the meltability for improving glass it is preferred, more preferable 0.05 mass ppm or more, further preferred 0.1 mass ppm with On.

The Fe of above-mentioned glass²⁺The amount of oxidant added when can be according to manufacture glass of content or solution temperature etc. carry out It adjusts.The specific type and its additive amount of the oxidant added when manufacture glass is described below.Fe₂O₃Content A be by glimmering Light X-ray measures and acquires, is scaled Fe₂O₃Full iron content (quality ppm).Fe²⁺Content B according to ASTM C169- 92 and measure.In addition, the Fe of measurement²⁺Content be scaled Fe₂O₃It is indicated.

The preferred concrete example of the composition of above-mentioned glass described below.

In one configuration example (configuration example A) of above-mentioned glass, indicated with the quality percentage of oxide benchmark, comprising 60~ 80% SiO₂, 0~7% Al₂O₃, 0~10% MgO, 0~20% CaO, 0~15% SrO, 0~15% BaO, 3 ~20% Na₂O, 0~10% K₂O, and include the Fe of 5~100 mass ppm₂O₃。

In another configuration example (configuration example B) of above-mentioned glass, indicated with the quality percentage of oxide benchmark, comprising 45~ 80% SiO₂, more than 7% and in 30% Al below₂O₃, 0~15% B₂O₃, 0~15% MgO, 0~6% CaO, 0 ~5% SrO, 0~5% BaO, 7~20% Na₂O, 0~10% K₂O, 0~10% ZrO₂, and include 5~100 matter Measure the Fe of ppm₂O₃。

In the another configuration example (configuration example C) of above-mentioned glass, indicated with the quality percentage of oxide benchmark, comprising 45~ 70% SiO₂, 10~30% Al₂O₃, 0~15% B₂O₃, add up to 5~30% MgO, CaO, SrO and BaO, add up to 0% or more the and Li less than 3%₂O、Na₂O and K₂O, and include the Fe of 5~100 mass ppm₂O₃。

(optical junction layer 2)

In the structural body 100 of present embodiment, transparent panel 1 and transparent substrate 3 are laminated integrally by optical junction layer 2 Change.In order to which light to be incident in optical element 6 from transparent panel 1, needs not across air layer, but connect using refractive index is close Layer is closed by 6 optical junction of transparent panel 1 and optical element.Optical junction layer 2 and transparent panel 1 and optical junction layer 2 and transparent base The difference of the refractive index of plate 3 is preferably 0.1 hereinafter, more preferable 0.05 or less.

As optical junction layer 2, commercially available optical bonding piece, optics adhesive sheet etc. can be used.It, can as such sheet material Enumerate acrylic compounds, organic silicon, polyurethanes, its mixture etc..

Dynamic storage shear modulus (G ') when optical junction layer 2 is preferably at 35 DEG C, 1Hz is 1.0 × 10⁵Pa with Under.If the G ' of optical junction layer 2 is within the above range, by transparent panel 1 and optical element 6, (wherein, joint surface is transparent Substrate 3) engagement when do not allow to be also easy to produce bubble, can prevent structural body 100 inside generate optical defect.It is examined from same viewpoint Consider, above-mentioned G ' is more preferably 1.0 × 10²Pa~5.0 × 10⁴Pa, further preferred 1.0 × 10³Pa~5.0 × 10⁴Pa。

Optical junction layer 2 preferably at 35 DEG C, 1Hz when loss tangent (tan δ) be 0.1~1.4.If tan δ is upper In the range of stating, then transparent panel 1 and transparent substrate 3 are not easily stripped, and the durability of the product as structural body 100 improves.tanδ More preferably 0.2~1.0, further preferred 0.2~0.8.

The internal transmission rate of optical junction layer 2 is preferably 90% or more, and more preferable 98% or more.Internal transmission rate indicates In transmissivity measurement, except deluster to optical junction layer incidence incident side and exiting side surface reflection after transmissivity.

The haze value of optical junction layer 2 is preferably 1% hereinafter, more preferable 0.5% or less.

If optical junction layer 2 has above-mentioned optical characteristics, the light of structural body 100 is incident in optical junction layer 2 In will not be scattered or absorbed, can be effectively directed at optical element 6.Therefore, in electrooptics functional layer 4 by scatter incident light Under state, it can will be taken out, can be identified as shining for scattered portion by its scattered portion by the guide-lighting light of transparent panel 1.

(optical element 6)

Optical element 6 is constituted and being clipped in electrooptics functional layer 4 between a pair of of transparent substrate 3,5.As described above, The face of a pair of of transparent substrate 3,5 contacted with electrooptics functional layer 4 is equipped with transparent electrode (not shown).In transparent electrode layer and It may also set up insulating layer or liquid crystal aligning layer between electrooptics functional layer 4.In addition, in transparent substrate 3,5 and electrooptics function Part or all of the discontiguous face of layer may also set up UV-absorbing layer, anti-reflection layer, reflecting layer, semi-reflective layer, anti-finger Line adhesive layer etc..

As described above, normality transmission-type and normality scatter-type can be used in optical element 6.In transparent background, by by The scattering for the incident light in segment electrode portion that the patterning of transparent electrode is formed and in the case where forming display, need to be used for The cloth line electrode that the segment electrode is powered always remains pellucidity, therefore it is preferable to use normality transmission-types.

The material for ensuring the transparency can be used in the material of transparent substrate 3,5.For example, acrylic resin board or polyester can be enumerated Resin plate, glass plate of plate etc..In terms of the dimensional stability and rigidity for improving optical element 6, becoming easy operation, thoroughly Bright substrate 3,5 is preferably glass plate.In addition, improve structural body 100 it is transparent in terms of, transparent substrate 3,5 more preferably tool There is the transparent substrate of the optics physical property close with transparent panel 1.

As transparent electrode, can be used by based on metal oxygens such as oxidations relation by marriage-selenium oxide (ITO Indium Tin Oxide) The material of the formation such as the filamentary webs of compound, copper or silver etc. or nano wire.

Though it is not illustrated, transparent electrode is to drive electrooptics functional layer 4 and indispensable constituent element.

(so-called whole face fills as set forth above, it is possible to be located at the entire surface of transparent substrate 3,5 for the shape of transparent electrode Shape), there can also be the part of setting electrode on the surface of transparent substrate 3,5 and be not provided with part (such as the section shape of electrode Or dotted).

By the way that alignment films are arranged on transparent substrate 3,5, liquid-crystal compounds can control when forming electrooptics functional layer 4 Orientation.

As liquid-crystal compounds, the material being positive using dielectric constant anisotropy, between using opposite a pair of electrodes Electric field so that electrooptics functional layer is worked in the case where, be preferably after 10 ° of alignment films below carry out friction treatments to pre-tilt angle It uses.Whereby, the transparency of optical element 6 can be improved.

Make electrooptics functional layer work using the interelectrode electric field in the upper comb teeth-shaped formed of either transparent substrate 3,5 In the case where work, the alignment films for being preferably 60 ° or more to pre-tilt angle are used without friction treatment.

In the case where making electrooptics functional layer work using the electric field between opposite a pair of electrodes, as LCD compound Object, in the material being negative using dielectric constant anisotropy, preferably to pre-tilt angle be 60 ° or more alignment films without friction It handles and uses.Whereby, the transparency of optical element 6 can be improved.In addition, pre-tilt angle is to set the direction vertical with transparent substrate The defined value for 90 °.

Electrooptics functional layer 4, which has by applying voltage to transparent electrode, controls the function of transmission and the scattering of incident light Energy.From being carried out mostly from the direction vertical with electrooptics functional layer 4, to by applying electrooptics functional layer caused by voltage The transmission and scattering of 4 incident light are evaluated.

Electrooptics functional layer 4 is in the state of making incident light transmission, when the normal direction of above-mentioned transparent substrate is set as 0 ° Following formula 3 measurement angle (critical angle) transmissivity be 60% or more.Above-mentioned transmissivity is preferably 70% or more, more preferably 75% or more.

Measurement angle=arcsin (refractive index of the medium of part adjacent with transparent panel 1, other than optical junction layer/ The refractive index of transparent panel 1) ... formula 3

The normal direction of transparent panel is set as 0 °, in the inside of transparent panel 1 from transparent panel towards Jie adjacent with transparent panel The light that the light of matter is entered with the end face as the condition more than angle (referred to as critical angle) calculated by above-mentioned formula 3, self-induced transparency plate 1 By incident light total reflection on the interarea 1s of transparent panel 1.That is, being incident to inside transparent panel 1 with angle more than above-mentioned angle It will not be leaked out from interarea 1s with the light of the boundary face of the discontiguous side of optical junction layer of transparent panel 1, but in structural body 100 It is internal guide-lighting.

In above-mentioned electrooptics functional layer 4, in the state of making incident light transmission, the haze value of the measurement angle of above-mentioned formula 3 Preferably 10% hereinafter, more preferable 5% hereinafter, further preferred 3% or less.In the present embodiment, electrooptics functional layer 4 In, in the state of making incident light transmission, if the haze value of the measurement angle of formula 3 be 10% hereinafter, if oblique incidence to electricity The light of optical functional layer 4 is not easy to scatter in electrooptics functional layer 4.As a result, in the structural body 100 of present embodiment, Electrooptics functional layer 4, even if keeping light incident in one end of transparent panel 1, also can be such that structural body 100 seems through in the state of light It is transparent.

Electrooptics functional layer 4 includes more than one liquid-crystal compounds and is orientated inside it to liquid-crystal compounds The orientation of limitation limits material.In the case where above-mentioned orientation limitation material is formed by the aggregate of column resin, column resin The normal direction of normal direction including long axis direction and electrode roughly the same column resin and long axis direction relative to electrode Inclined column resin, connect to form liquid crystal region with the aggregate of the column resin.

The thickness of electrooptics functional layer 4 is preferably 1~50 μm, and more preferable 3~30 μm.If the thickness of electrooptics functional layer 4 Degree is 1~50 μm, then contrast ratio appropriate can be achieved, and reduces driving voltage.

As the type of liquid-crystal compounds contained in electrooptics functional layer 4, nematic crystal, cholesteric liquid can be enumerated Brilliant, smectic crystal and ferroelectric liquid crystals etc..From the viewpoint of the easiness of the manufacture of optical element 6, as liquid-crystal compounds Type, it is preferable to use nematic crystal, cholesteryl liquid crystal.In particular, nematic crystal and other liquid crystalline phase ratios, have liquid crystal The characteristic that temperature range is wide, viscosity is low.

As liquid-crystal compounds, the material as common display material or electric field drive display element can be used to make Various liquid-crystal compounds.Specifically, biphenyl class, phenylamino benzoic acid esters, cyclohexyl benzene class, azoxybenzene can be enumerated Class, azobenzene, azomethine class, terphenyl class, benzoic acid biphenyl esters, cyclohexyl biphenyl class, phenylpyridine class, cyclohexyl are phonetic Pyridine class, cholesteric alcohols etc..

Identical as usually used situation, liquid-crystal compounds is necessarily used alone, can be by two or more liquid-crystalizations Object is closed to be applied in combination.It, can if the liquid-crystal compounds big using the absolute value of dielectric constant anisotropy as liquid-crystal compounds Reduce the driving voltage of optical element 6.The big liquid-crystal compounds of absolute value as dielectric constant anisotropy, can enumerate has Compound of the halogen atoms such as cyano and fluorine, chlorine as substituent group.

Orientation limitation material is the solidfied material of a kind or more of curability compound.Material is limited usually as orientation, it is excellent Choosing uses the solidfied material of the hardening resin composition comprising curability compound.Curability compound also can be used after hardening The compound that transmissivity is high, liquid-crystal compounds can be made to be orientated.As such curability compound, can enumerate for example with formula 5~ The compound that formula 7 indicates.

A¹-O-(R¹)_m-O-Z-O-(R²)_nO-A²... formula 5

A³-(OR³)_o-O-Z’-O-(R⁴O)_p-A⁴... formula 6

Wherein, A¹、A²、A³、A⁴It is separately acryloyl group, methylacryloyl, glycidyl or allyl. R¹、R²、R³、R⁴It is separately the alkylidene of carbon number 2~6.Z, Z ' is separately the mesomorphic structure portion of divalent.m,n,o, P is separately 1~10 integer.Here, " independently " refer to that combination is arbitrary, can be any combination.In addition, formula 5, the curability compound of formula 6 can include ester bond or carbonic acid ester bond in the molecule.

[changing 1]

Wherein, A⁵~A⁷It is separately acryloxy, methacryloxy, vinyl ether group, vinyl or contracting Water glyceryl ether.R⁵Be can have between carbon atom the straight or branched carbon numbers 1 of one or more etheric oxygen atoms~ The organic group of 50 1~trivalent.Q, r, s are separately 0~3.But q+r+s=1~3.

It may include the other compositions other than liquid-crystal compounds and orientation limitation material in electrooptics functional layer 4.

As other compositions, polymerization initiator can be enumerated.As polymerization initiator, well known polymerization catalyst may be selected, Benzoin ethers, acetophenones, phosphinoxides etc. can be enumerated.

In addition, the various dichroism colors such as Anthraquinones, phenylethylene, azomethine class, azo can be enumerated as other compositions Element.If the contrast ratio of electrooptics functional layer 4 can be improved comprising these ingredients, stability is improved.

In addition, from the viewpoint of the stability and durability for improving electrooptics functional layer 4, it can be with as other compositions Include antioxidant, ultraviolet absorbing agent, various plasticizer.

Optical element 6 can be by solidifying the mixture (hereinafter referred to as " mixed liquor ") of the precursor of electrooptics functional layer 4 And it is formed.By being clipped in said mixture between a pair of of transparent substrate 3,5 with transparent electrode, insulating layer and alignment films, Ultraviolet light or electron ray, curability compound solidification are irradiated to mixture, liquid crystal compound is mutually separated with solidfied material generation, can Form the good electrooptics functional layer 4 that can play optical effect.

Mixed liquor includes a kind or more above-mentioned of liquid-crystal compounds, a kind or more of curability compound and as needed Other compositions.According to the optical characteristics that electrooptics functional layer 4 plays, determines each ingredient and its blend ratio.

(second embodiment)

It is illustrated referring to second embodiment of Fig. 3~Fig. 5 to the structural body of the utility model.In second embodiment Explanation in, omission similarly illustrate with first embodiment.

Fig. 3 is the cross-sectional view of the structural body 101 of present embodiment.As shown in figure 3, structural body 101 is in one end of transparent panel 1 Portion has reflecting part 8, and other structures are same as first embodiment.

Structural body 101 transparent panel 1 one end have reflecting part 8, therefore the light of the inside of structural body 101 leaded light not It is easily leaked out from the face (side) vertical with the interarea of transparent panel 1, the utilization efficiency of light can be improved.

The position of reflecting part 8 is not limited.In addition, as shown in figure 4, if reflecting part 8 is arranged in transparent panel 1 and optics The end of element 6 can then prevent the side light leakage from structural body 101, thus more preferably.In addition, in the form of Fig. 3 and Fig. 4 In have reflecting part 8 in the case where, such as from the side interarea 5s of transparent substrate 5 viewing structural body 101 when top view, Fig. 5 institute Show, can in addition to by light to the incident part (incident section 9) of transparent panel 1 other than whole ends reflecting part 8 is set.

(reflecting part 8)

Its own can be the component of reflected light to reflecting part 8, be also possible to the structure being pasted onto reflectance coating on resin film etc. Part.Aluminium glue band of aluminium film etc. is pasted on resin film for example, can enumerate.

(third embodiment)

It is illustrated referring to third embodiment of the Fig. 6 to the structural body of the utility model.In saying for third embodiment In bright, omission similarly illustrates with first embodiment.

Fig. 6 is the cross-sectional view of the structural body 102 of present embodiment.As shown in fig. 6, structural body 102 is in optical element 6 Two sides is laminated with transparent panel 1-1 and 1-2 and integrally-formed by optical junction layer 2-1 and 2-2 respectively, other constitute with First embodiment is identical.

Structural body 102 constitutes the leaded light that can be utilized in optical junction in the transparent panel on the two sides of optical element 6, so The light emission luminance in the scattered portion of the incident light of electrooptics functional layer can be improved, identity can be improved.

In the case where the one end incident light of self-induced transparency plate, by making transparent panel 1-2's to enter plain edge and transparent panel 1-1's Enter that plain edge is opposite, the uniformity to shine in optical element face in the scattered portion of electrooptics functional layer can be improved, thus It is preferred that.If further passing through optical junction layer in the upper surface of structural body 102 or lower surface is laminated one for optical element 6 Change, is then capable of providing the multiple display based on optical element.

(the 4th embodiment)

It is illustrated referring to the 4th embodiment of the structural body of Fig. 7~8 pair the utility model.In the 4th embodiment In explanation, omission similarly illustrates with first embodiment.

Fig. 7 is the cross-sectional view of the structural body 103 of present embodiment.As shown in fig. 7, structural body 103 is only on transparent substrate 3 With transparent electrode 10, do not have transparent electrode on transparent substrate 5.In addition, other compositions are same as first embodiment.

Transparent electrode 10 is the component for generating the electric field of the power line with the direction parallel with transparent substrate 3.It is such Electrode can be carried out the light transmissive state for making electrooptics functional layer 4 and scatter the light by being provided only on transparent substrate 3 The control of state.For example, being difficult to interelectrode distance remaining one sometimes in the case where the area of transparent substrate 3 and 5 is big Fixed, due to interelectrode distance, the effective voltage for being applied to electrooptics functional layer generates intensity point in the plane of optical element 6 The contrast of cloth, transmission and scattering is possible to become uneven.In present embodiment, above-mentioned technical problem can solve, thus it is excellent Choosing.

As transparent electrode 10, such as shown in the top view of Fig. 8, the form of comb teeth shape can be enumerated.Present embodiment Transparent electrode 10 be not limited to the form of Fig. 8.

As shown in figure 8, the electrode of comb teeth shape has first electrode 31 and second electrode 36, and having is respectively linear Interconnecting piece 32,37 and from interconnecting piece 32,37 to the direction on opposite one side extend multiple linears comb portion 33, 38.Comb portion 33,38 is parallel to each other and alternately configures.Whereby, comb portion 33,38 forms mutually electrode pair, makes electrooptics function Ergosphere 4 generates electric field.

In the structural body 103 of present embodiment, preferably in the state that no voltage is applied substantially along transparent substrate The mode of normal direction orientation forms electrooptics functional layer, uses the liquid-crystal compounds with positive dielectric constant anisotropy. Whereby, when applying voltage to transparent electrode 10, then the electricity with the power line in the direction parallel with the face of transparent substrate 3 is generated , so that the consistent condition of the long axis of liquid-crystal compounds and the direction of power line makes its movement.At this point, being present in orientation limitation material The movement of liquid-crystal compounds near material is restricted, and takes the orientation different from power line.As a result, it is believed that in liquid crystal Ordered structure is upset in region, shows the state of scatter incident light.

In addition, be formed in transparent electrode 10 in the one side of transparent substrate 3 in the structural body 103 of present embodiment, but Transparent electrode 10 can also be formed in the one side of transparent substrate 5.Even if can also be obtained similar to the above using this composition Effect.

(the 5th embodiment)

It is illustrated referring to fiveth embodiment of the Fig. 9 to the structural body of the utility model.In saying for the 5th embodiment In bright, omission similarly illustrates with first embodiment.

Fig. 9 is the cross-sectional view of the structural body 104 of present embodiment.As shown in figure 9, there is area ratio light in structural body 104 The big transparent panel 11 of element 6 is learned to replace the transparent panel 1 in above-mentioned example, other compositions are identical with first embodiment.

The optical characteristics and material of transparent panel 11 are identical as transparent panel 1.The area ratio optical element 6 of transparent panel 11 is big, institute To have through optical junction layer 2 and the discontiguous part (non-bonding portion 11a) of optical element 6.The non-bonding portion of transparent panel 11 The light exit portion such as diffusion patterned and dotted micro concavo-convex can be set in 11a.If using such composition, such as wrapped The part with electrooptics functional layer 4 of transmission and scattering of incident light and total can be changeably controlled by the application of voltage by including It is the structural body for issuing the part of incident light.In addition, in the case where the end incident light of self-induced transparency plate 11, when from optics member When making light incidence on one side of the inconsistent side in the end of part 6, the i.e. side non-bonding portion 11a is easy required for the incidence for carrying out light Component setting, thus preferably.

Another embodiment of the structural body of 0 pair of the utility model is illustrated referring to Fig.1.

(sixth embodiment)

The sixth embodiment of the structural body of 0 pair of the utility model is illustrated referring to Fig.1.The structure of sixth embodiment Body, which has, is clipped in electrooptics functional layer between transparent substrate and transparent panel, above-mentioned transparent substrate and above-mentioned transparent panel at least Be formed with electrode on one side, above-mentioned electrooptics functional layer can control by the application of voltage make incident light transmissive state and make into The state for penetrating light scattering, in the state of making incident light transmission, the transmissivity of the measurement angle of following formula 4 is 60% or more.

Measurement angle=arcsin (refractive index of the medium of the part other than the electrooptics functional layer adjacent with transparent panel/ The refractive index of transparent panel) ... formula 4

Figure 10 is the cross-sectional view of the structural body 105 of present embodiment.As shown in Figure 10, structural body 105 have transparent panel 12, Transparent substrate 5 and the electrooptics functional layer 4 being clipped between transparent panel 12 and transparent substrate 5.That is, not having the first~five reality The optical junction layer 2 in mode is applied, but is had with transparent panel 1 shown in the first~five embodiment and transparent substrate 3 The transparent panel 12 of two kinds of functions.In the present embodiment, it is contacted in transparent panel 12 and with the electrooptics functional layer 4 of transparent substrate 5 Face be equipped with transparent electrode layer (not shown).In addition, can be set in first embodiment on transparent panel 12 and transparent panel 5 Other layers recorded.

Electrooptics functional layer 4 is in the state of making incident light transmission, the transmissivity of the measurement angle (critical angle) of above-mentioned formula 4 It is 60% or more.Above-mentioned transmissivity is preferably 70% or more, and more preferable 75% or more.

(variation)

In the other embodiments of the utility model, there can be reflecting part 8 in the one end of transparent panel 12.About reflection Component identical with second embodiment, position and quantity can be used in component, position and the quantity in portion 8.Whereby, transparent substrate In the absorption of light reduce, the loss of light quantity when can further decrease leaded light, thus preferably.

In the other embodiments of present embodiment, as transparent substrate 5, it can be used and (or the transparent panel of transparent panel 1 12) same transparent substrate.By clamping electrooptics functional layer with a pair of of transparent panel, it can reduce and be drawn by the light absorption of transparent substrate The loss of light quantity when the leaded light risen, thus preferably.

In the other embodiments of the utility model, it can be only in at least one party of transparent panel 12 or transparent substrate 5 Composition with transparent electrode.In this case, the electrode recorded in the 4th embodiment can be used as transparent electrode.

In the other embodiments of the utility model, the size of transparent panel 12 or transparent substrate 5 can be different.

[transparent display]

1~Figure 13 is illustrated an embodiment of the transparent display of the utility model referring to Fig.1.Present embodiment Transparent display in, the transmissivity of pellucidity (the i.e., hyalomere of pellucidity) is 70% or more, pellucidity and is shone The brightness contrast rate of state (the i.e., scattering part of luminance) is 4 or more.The transparent display of present embodiment is according to electrode Shape etc. can play the role of information and show and planar light.

About above-mentioned transmissivity and brightness contrast rate, in the case where above-mentioned transparent display is shone with whole face, measurement is saturating Pellucidity and luminance in any portion of bright display.There is transparent part in above-mentioned transparent display and shine Part in the case where, transmissivity can be measured in transparent part, measure brightness pair in transparent part and luminous part Ratio.

(first embodiment)

The first embodiment of the transparent display of 1 pair of the utility model is illustrated referring to Fig.1.In addition, according to Figure 12 (A), Figure 12 (B) and Figure 13 are illustrated its variation.

Figure 11 is the cross-sectional view for showing the transparent display 200 of present embodiment.As shown in figure 11, transparent display 200 Structural body 100 with the utility model applies alive control unit to the electrode of structural body 100 and in the saturating of structural body 100 The light source 13 of the one end of isotropic disk 1.In the following description, explanation relevant to the structural body 100 of first embodiment is omitted.

In the transparent display 200 of present embodiment, structure volume morphing is not limited, and the skill of the utility model can be used All structural bodies for being included within the scope of art.

The transparent display 200 of present embodiment have structural body 100 and transparent panel 1 one end outside light Source 13.It is being emitted from light source 13, to the incident light of transparent panel 1 by being scattered in optical element 6, thus transparent display 200 It can shine in the case where the intensity independent of environment light.

The RMS voltage in pattern and control plane that transparent display 200 passes through the transparent electrode of control optical element 6, Planar light or partial illumination are formed, and then transparent display 200 itself works as information display device.

The lighting device that the transparent display 200 to work as partial illumination also can be used as liquid crystal display panel uses.Pass through The lighting part for arbitrarily controlling above-mentioned transparent display, in the liquid for the edge lamp-type for making light incidence from the side of display panel In crystal device, displaying contrast based on local dimming can be improved.By liquid crystal display panel and as the above-mentioned of lighting device In the case that transparent display combines, the light guide plate lighting device of common edge lamp-type liquid crystal display device and light can be expanded Discrete piece, planar mirror surface component are used in combination.By being used in combination with light diffusing sheet, entire planar light is being made in transparent display When, its face intraoral illumination Luminance Distribution can be reduced, thus preferably.It is illuminated if being arranged planar mirror surface component to liquid crystal display panel Transparent display face the back side, then can improve the brightness of illumination of liquid crystal display panel, thus preferably.

In addition, in the case where using lighting device of the transparent display as liquid crystal display panel, can transparent panel 1 with The discontiguous face of optical junction layer or transparent substrate 5 be arranged on the discontiguous face of optical functional layer it is diffusion patterned or dotted The light exit portion such as slot, and the part fixedly illuminated to liquid crystal display panel is set.

It is described below to act as transparent display 200 as the luminous concrete example to work of planar, i.e. as lighting device Example.

The design that the transparent electrode by optical element 6 can be enumerated, will be to optics function in the position close to light source 13 Ergosphere applies voltage and the electrode area of its work is made to set sparse, sets intensively in the position far from light source.Whereby, with saturating In the case that bright display whole face is illuminated, the intensity from the light in the face that optical element 6 issues can be made the same.

In the case where the arbitrary partial illumination opposite with liquid crystal display panel uses transparent display 200, as composition light Learn the pattern of the transparent electrode of element, preferred point matrix structure.According to the driving method of optical element it may require that static drive, Section driving, in this case, the wiring of each point of dot matrix electrode is arranged in electrode base board face sometimes.In this case, it is preferred that The area of above-mentioned wiring is reduced in the range of capable of driving optical element.In order to inhibit based on the transparent of above-mentioned wiring portion Light diffusing sheet etc. is preferably used in combination in the inhomogeneities of light emission luminance in the face of display.

In addition, using dot matrix electrode to drive optical element, in the point electrode close with light source 13 and With light source 13 in separate point electrode, by applying different effective voltages, the degree of the light scattering of the premises is controlled, whereby The distribution of light emission luminance in energy improvement face, thus preferably.By making the light scatter intensity ratio of the point far from light source close to light source Point light scatter intensity it is high, the distribution of the light emission luminance of each point can be inhibited according to the distance from light source 13, thus preferred.

As the method for applying different implementation voltages to each point electrode, using applying different voltage to each point electrode Value or the pulse width modulation method for changing its application time periodically with identical voltage value (referred to as PWM) etc..Using virtual value In the case where the optical element of response, preferably the design comparison of driving circuit is readily based on the driving of PWM.

Light source 13 can enumerate bulb, LED (Light Emittion Diode: light emitting diode), organic EL (Electro Luminescence: electroluminescent), cold-cathode tube etc., incident light are not had by the transparent panel 1 of structural body 100 Form the face total reflection of optical junction layer.The light utilization ratio of emergent light it is high, dimension of light source can be reduced in terms of, it is preferable to use LED。

Light source 13 can be set other than the one end of the transparent panel 1 of structural body 100.I.e., it is possible to surround transparent panel 1 The mode of surrounding is arranged, and can also be provided only on one end.In addition, light source 13 can be directly bonded to the end of transparent panel 1, it can also It is arranged across minimum air layer.

The transparent display 200 of present embodiment is by the scattered portion in electrooptics functional layer 4 by leading in transparent panel 1 Light takes out to outside and shines.In addition, display unit shines, it is transparent other than display unit.

(variation)

Figure 12 (A), Figure 12 (B) and Figure 13 are that the configuration method for changing light source 13 is watched from the side interarea 5s of transparent substrate 5 The top view of the variation of transparent display afterwards.

The transparent display 201,202 shown in Figure 12 (A) and Figure 12 (B) is with only in the setting of the end of transparent panel 1 The end of light source 13 and be not provided with light source 13 end composition.Such as shown in Figure 12 (A), light source 13 is set for transparent display 201 The one end in transparent panel 1 is set, transparent display 202 such as shown in Figure 12 (B), has been oppositely disposed light source 13 across transparent panel 1. In these compositions, as illustrated in structural body 101, reflecting part 8 is set preferably other than the incident section of transparent panel 19.By This, can improve the utilization efficiency of light.

Whole peripheral end portion that Figure 13 is shown in transparent panel 1 have the composition of the transparent display 203 of light source 13.This composition In the state that situation, the electrooptics functional layer 4 of structural body 100 more than the quantity of light source make scatter incident light, it can take out more Light.

The color of light source 13 is not particularly limited.Illuminant colour can be used and be switched to red, blue, green light source, it can also be with Use monochromatic light source.

As light source 13, in the case where being switched to red, blue, green light source using illuminant colour, shown in Figure 11~Figure 13 Transparent display 200~203 can be carried out colored display.For example, the frequency of red, blue, the green successively bright light by control illuminant colour Rate interlocks and controls the transmission and scattering state of electrooptics functional layer 4 with the bright light of illuminant colour, is able to achieve and so-called field sequence The similar display mode of color mode can make a display segment electrode issue the light of multiple color.

In addition, can be formed has transparent show by the way that the mirror surfaces components such as reflecting plate are arranged on a face of transparent display Show the mirror of device.In such a configuration, guide-lighting luminescence display is formed in mirror, and the mirror that can show information can be provided.

[liquid crystal display device]

An embodiment of the 4~Figure 16 to the liquid crystal display device using transparent display of the utility model referring to Fig.1 It is illustrated.In order to illustrate present embodiment, the prior art for the liquid crystal display device for using light guide plate is illustrated.It uses The liquid crystal display device of light guide plate successively have from display surface side liquid crystal display panel, muti-piece diffuser plate, light guide plate and as needed and The mirror surfaces component such as mirror having.Dotted Deng specific patterns are provided with by printing or micro concavo-convex processing etc. on light guide plate, It is removed and shines by scattering or refraction at above-mentioned configuration pattern position from the light of the side incidence of light guide plate, further exist Above-mentioned light is spread on diffuser plate and is incident to display panel.In such display device, the setting pattern of guide-lighting plate face is Fixed, luminous intensity cannot be made partly, arbitrarily to change in guide-lighting plate face according to the display image of liquid crystal display panel.

(first embodiment)

The first embodiment of the liquid crystal display device using transparent display of 4 pairs of the utility model carries out referring to Fig.1 Explanation.

In the liquid crystal display device of present embodiment, transparent display 200 is filled using the illumination that can be carried out planar light Set the transparent display to work.

Figure 14 is the cross-sectional view of liquid crystal display device 300.As shown in figure 14, liquid crystal display device 300 is with liquid crystal display panel 14 The mode opposite with the optical element 6 of transparent display 200 configures.That is, in liquid crystal display device 300, transparent display 200 Play the role of the lighting device as background light.In the following description, explanation relevant to transparent display 200 is omitted.

The liquid crystal display device of the utility model is not limited to the form of transparent display, and the skill of the utility model can be used All transparent displays for being included within the scope of art.

In the liquid crystal display device 300 of present embodiment, the light source 13 of transparent display 200 uses white light.

Well known liquid crystal display panel can be used in liquid crystal display 14.For example, TN can be used (Twisted Nematic: to turn round Qu Xianglie) the liquid crystal display panel or IPS (In of liquid crystal display panel, VA (Vertical Alignment: vertically oriented) mode of mode Plane Switching: in-plane changes) liquid crystal display panel etc. of mode.

Liquid crystal display panel 14 includes transparent substrate 15, tool with TFT (Thin Film Transistor: thin film transistor (TFT)) The transparent substrate 17 and liquid crystal layer 16 of chromatic colour optical filter.Polarizing film can be set on transparent substrate 15,17, can not also set Set polarizing film.If being not provided with polarizing film, black display can not be carried out, but the transmissivity of liquid crystal display panel 14 improves, thus it is excellent Choosing.In addition, in the case where not needing to carry out colored display, by not using colored filter, liquid crystal display panel 14 can be improved Transmissivity.

In the liquid crystal display device 300 of present embodiment, the optical element 6 of transparent display 200 shows pellucidity And scattering state.Optical element 6 be pellucidity in the case where, transparent display 200 be it is transparent, so liquid crystal display panel 14 Image show and the background of liquid crystal display panel 14 can have an X-rayed and be overlapped identification.In the case where optical element 6 is scattering state, thoroughly Bright display 200 shines guide-lighting take out of transparent panel 1, plays and similarly makees with the backlight of common liquid crystal display device With.That is, liquid crystal display device 300 can be switched to transparent by the way that optical element 6 is switched to pellucidity and scattering state Liquid crystal display device and opaque liquid crystal display device.

At this point, the light emission luminance in the face of transparent display 200 can be made to be evenly distributed in order to when optical element 6 scatters Change, specific pattern can be set on the electrode for applying electric field to electrooptics functional layer 4.Alternatively, electrode pattern is set as a square Battle array is constituted, and makes the RMS voltage variation for being applied to each point as previously described.Whereby, be able to achieve when non-display for it is transparent, aobvious The liquid crystal display device that Luminance Distribution when showing in display surface is suppressed.

In addition, being distributed the light emission luminance in the face of transparent display 200 according to aobvious in order to when optical element 6 scatters Diagram picture and be controlled, the specific pattern such as dot matrix can be set on the electrode for applying electric field to electrooptics functional layer 4.By This, is able to achieve while having the liquid crystal display device of the display unit and transparent non-display portion as common liquid crystal display.This Outside, it if controlling the light emission luminance of transparent display 200 according to the brightness for the image of display unit shone upon, can constitute logical The effect for crossing local dimming, the liquid crystal display device that contrast is greatly improved.

The liquid crystal display device 300 of present embodiment is sent out by the light transmission and face for switching transparent display 200 at high speed Light only shows at the time of face shines liquid crystal display panel 14, makes transparent display 200 with the liquid crystal display panel 14 at the time of transparent Transmissivity reaches highest condition and works, and can improve contrast when transparence display.

In addition, even if colored filter is removed from liquid crystal display panel 14, by using the light source 13 of transparent display 200 The LED of the light of above-mentioned sending red, green, blue simultaneously makes its successively bright light, so that liquid crystal display panel 14 is worked while making its bright light, energy The so-called colored display based on field sequence driving is provided.In this case, it is preferred that liquid crystal display panel 14 does not have polarizer.Whereby, The transmissivity of transparent background can be improved, and the identity of background can be improved.At this point, the LED of the light source 13 in transparent display 200 Successively bright light in, being suitably set makes all non-luminous field any LED, transparent display 200 be it is transparent at the time of, pass through Make its work in such a way that the transmissivity of liquid crystal display panel 14 increases, can be further improved the transparency of background.In liquid crystal display panel 14 In the case where being clipped between a pair of of polarizer, transparency when transmission is reduced, but can be carried out black display.

It can also be used liquid crystal display panel 14 without the liquid crystal display panel of the passive drive of TFT.If not using TFT, can improve Transparency when transmission.

In the case where not needing above-mentioned transparence display, in the same manner as previous liquid crystal display device, by transparent aobvious Show and the mirror surfaces components such as reflecting plate are set on the face not corresponding with liquid crystal display panel 14 of device 200, illumination efficiency can be improved, thus it is excellent Choosing.In this case, by the way that light diffusing sheet etc. is arranged between transparent display 200 and liquid crystal display panel 14, can inhibit transparent Luminance Distribution in the face of display, thus preferably.Furthermore, it is possible to transparent display 200 transparent panel 1 and optical junction The discontiguous face of layer or transparent substrate 5 with diffusion patterned or dotted micro concavo-convex is set on the discontiguous face of optical functional layer Equal light exit portion, and the part fixedly illuminated to liquid crystal display panel is set.

(variation)

Figure 15 and Figure 16 is the cross-sectional view of the variation of the liquid crystal display device of present embodiment.

Liquid crystal display device 301 shown in Figure 15 side opposite with the transparent panel 1 of transparent display 200 with liquid crystal display panel 14 Formula configuration.

In liquid crystal display device 302 shown in Figure 16, the optical element 6 of liquid crystal display panel 14 and transparent display 200 is opposite Ground configuration, optical element 6 and liquid crystal display panel 14 are engaged by optical junction layer 18.It whereby, can be by the light issued by light source 13 height Effect ground is used for the display of liquid crystal display panel 14.Optical junction layer 18 can be used and connect transparent panel 1 and optical element 6 in structural body The same optical junction layer of the optical junction layer of conjunction.

In addition, by the way that the mirror surfaces component such as reflecting plate is arranged on a face of liquid crystal display device, when making transparent display When in pellucidity, display can be formed in mirror, it is possible to provide can show the mirror of information.On the other hand, in transparence display In the case that device works as lighting device, its illumination efficiency can be improved, thus preferably.

In the information display device of the utility model, the transmissivity of hyalomere is 70% or more, not from display In the state of the light of the opposite side incidence in face, the brightness contrast rate of hyalomere and scattering part is 4 or more.

In the more specific form of information display device, there is structural body and light source, above described structure has at least A pair of of transparent substrate of electrode, the electrooptics functional layer being clipped between above-mentioned a pair of of transparent substrate are formed on one side and above-mentioned The transparent panel being overlapped on at least one party of transparent substrate by optical junction layer, above-mentioned electrooptics functional layer are applied by voltage Add and can control the state for making incident light transmissive state and making scatter incident light, in the state of making incident light transmission, following formula 3 Measurement angle transmissivity be 60% or more,

In the wavelength region that optical path length is 50mm, wavelength 400nm~700nm, the average internal of above-mentioned transparent panel is saturating Penetrating rate is 80% or more；Above-mentioned light source configuration is on an at least end face for the transparent panel of above described structure.

In addition, there is structural body and light source, above described structure tool in other more specific forms of information display device There is the electrooptics functional layer being clipped between a pair of of transparent substrate, is formed with electrode on at least one party of above-mentioned transparent substrate, on Stating electrooptics functional layer can control the state for making incident light transmissive state and making scatter incident light by the application of voltage, make In the state of incident light transmission, the transmissivity of the measurement angle of following formula 4 is 60% or more,

Measure angle=arcsin (refraction of the medium of the part other than the electrooptics functional layer adjacent with transparent substrate Rate/transparent substrate refractive index) ... formula 4

In the wavelength region that optical path length is 50mm, wavelength 400nm~700nm, at least one party of above-mentioned transparent substrate Average internal transmissivity be 80% or more；Above-mentioned light source configuration is on an at least end face for the transparent panel of above described structure.

In the explanation of the information display device, the explanation of above-mentioned liquid crystal display device can be quoted.

Embodiment

Referring to Figure 17 and Figure 18, illustrate the utility model.Example 1 is embodiment, and example 2 and example 3 are comparative examples.

(example 1)

Preparation is clamped with by liquid-crystal compounds and orientation limitation material between a pair of of soda-lime glass substrate (transparent substrate) 3,5 Expect the optical element 6 of the electrooptics functional layer 4 constituted.The optical element is scattered when applying voltage, is not applying voltage When show pellucidity.As transparent panel 11, light guide plate glass substrate (Asahi Glass Co., Ltd's system, trade name XCV are prepared Refractive index 1.52).The light guide plate is 50mm, in the wavelength region of wavelength 400nm~700nm in optical path length with glass substrate, Average internal transmissivity is 98.8%.

Above-mentioned optical element 6 and light guide plate are connect in such a way that cross sectional shape becomes Figure 17 by optics with glass substrate 11 It closes layer 2 and is bonded.Dynamic storage shear modulus (G ') when optical junction layer is at 35 DEG C, 1Hz is 8.9kPa.Whereby, it makes The structural body of example 1.

(example 2)

As optical element 6, in addition to using commercially available electrooptic element (Nippon Sheet Glass Co Ltd's system, trade name UMU FILM other than), the structural body of example 2 has been made in the same manner as example 1.

(example 3)

Optical element used in example 1 is used alone.

(evaluation)

For example 1~3, determine according to the pellucidity lower 0 ° (normal direction) of the electrooptics functional layer of optical element and 45 ° (oblique incidence direction) of transmissivity and normal direction it is transparent when and the ratio between the luminous brightness of leaded light when scattering (scattering Intensity when Shi Qiangdu/transparent) contrast ratio that calculates.

(transmissivity measurement)

In the state that optical element makes light transmissive state and the not light of radiation source, the structural body of example 1~3 has been carried out Transmissivity measurement.In example 1 and example 3, it is determined in the state of not applying voltage to optical element.In example 2, right The state system that optical element is applied with the voltage of rectangular wave 50Hz, 60V determines transmissivity.The results are shown in tables 1.

Used in the present embodiment as the refractive index of the light guide plate glass substrate of transparent panel be 1.52, with light guide plate use Glass substrate is adjacent and is air (refractive index 1) with the medium of the discontiguous part of optical junction layer.Therefore, it is calculated by above-mentioned formula 3 Measurement angle out is 41.1 °.In the present embodiment, for the convenience of measurement device, transmissivity has been carried out to measure 45 ° of angle Measurement.In general, the transmissivity about optical element, measurement angle is bigger, then is become larger by the distance of the light of optical element, thoroughly Penetrate rate reduction.

(measurement of contrast ratio)

In the state of the light of radiation source, the measurement of the contrast ratio of the structural body of example 1~3 has been carried out.In example 1 and 2, such as Shown in Figure 17, so that the light of light source 13 is from the light guide plate condition of glass substrate incidence, in light guide plate with the one of glass substrate 11 End configures light source 13, in example 3, as shown in figure 18, configures light source 13 in the one end of optical element 6, is determined.

In the measurement of the contrast ratio of 1~example of example 3, in not contacted with optical element 6 for light guide plate glass substrate 11 Barn door 19 is arranged across air layer as shown in figure 18 in face and face not opposite with the detector of optical element 6.Whereby, may be used Inhibit the incidence of the light from the face opposite with the display surface of optical element.

It is measured at each 5 positions of the structural body of example 1~3, by the value of its average value rate as a comparison.In addition, will The intensity of incident light is changed to two ranks (high-intensitive and low-intensity), is measured.It the results are shown in table 1.

[table 1]

As shown in table 1, the structural body of example 1 and example 3 has the normal side being made of liquid-crystal compounds and orientation limitation material To the electrooptics functional layer high with the transmissivity in oblique incidence direction.Therefore, the structural body of example 1 and example 3 with used as commercially available The structural body of the example 2 of the electrooptics functional layer of electrooptic element is compared, and is shown in normal direction and oblique incidence direction high saturating Penetrate rate.In particular, when comparing example 1 and example 2, the transmissivity ratio in the oblique incidence direction of electrooptics functional layer used in example 1 The height of example 2, therefore reach from light guide plate glass substrate, with the light towards medium adjacent thereto the angle of above-mentioned formula 3 ' or more Condition from the light of the end incidence of light guide plate glass substrate in electrooptics functional layer, be not easy the scatter incident light, institute With example 1 it is transparent when guide-lighting luminous intensity become smaller.Optical element scatter when guide-lighting luminous intensity in example 1, example 2 compared with Height, so the contrast ratio of the structural body of example 1 becomes larger.In other words, oblique incidence side the electrooptics functional layer as used in example 2 To the low electrooptics functional layer of transmissivity in, it is incident with glass substrate from light guide plate even if optical element is pellucidity Light is also scattered when guide-lighting in structural body.As a result, even if when transparent, by the light that will be incident to electrooptics functional layer Scattering, guide-lighting luminous intensity are got higher, and contrast ratio reduces.

As described above, the electrooptics functional layer that example 1 and example 3 use the transmissivity in the oblique incidence direction under pellucidity high, So if guide-lighting, then optical element leading when transparent is similarly obtained on viewing surface direction when light is incident to structural body Light luminous intensity is same.

But in example 3, there is no optical junctions in the transparent panel of electrooptics functional layer, and light is incident to composition electrooptics The end of the soda-lime glass substrate of functional layer, so while the light absorption of glass substrate and be unable to get towards viewing surface direction Leaded light itself.Therefore, although optical element is smaller in the same manner as example 1 for the light emission luminance of pellucidity, optical element is in light Leaded light luminous intensity is also small when scattering, so contrast ratio becomes smaller.That is, optics can be reduced only in the composition of the utility model Guide-lighting luminous intensity when element is transparent, meanwhile, by obtaining adequately guide-lighting luminous intensity in the scattering of optical element, The high transparent luminescent of the identity that contrast ratio is 4 or more can be provided to show.

A possibility that being utilized in industry

Structural body according to the present utility model can get and environment is utilized in the sufficiently high situation of intensity of environment light The high contrast ratio of light, optical element transmission and scattering, the situation in the case where environment light is weak or almost without environment light Under, by the way that the light of light source to be incident to the end of transparent panel, can get based on the luminous contrast ratio of leaded light be 5 or more it is good Display.

In addition, lighting device according to the present utility model, it can be in the case where not depending on the intensity of environment light, by right Optical element applies voltage and does not apply voltage, switches pellucidity and luminance.

In addition, Japanese patent application 2015-166175 explanation that in August, 2015 incorporated herein is filed an application on the 25th Book, claims, attached drawing and abstract full content as announcement of the invention.

Symbol description

1: transparent panel, 1s: the interarea of transparent panel 1,2: optical junction layer, 3: transparent substrate, 4: electrooptics functional layer, 5: thoroughly Bright substrate, 5s: the interarea of transparent substrate 5,6: optical element, 7: light, 8: reflecting part, 9: incident section, 10: transparent electrode (electricity Pole), 11: transparent panel, 11a: non-bonding portion, 12: transparent panel, 13: light source, 14: liquid crystal display panel, 15: transparent substrate, 16: liquid crystal Layer, 17: transparent substrate, 18: optical junction layer, 19: barn door, 100~106: structural body, 200~202: transparent display, 300~302: liquid crystal display device.

Claims

1. a kind of structural body comprising:

Be formed at least one party electrode a pair of of transparent substrate,

The electrooptics functional layer that is clamped between the pair of transparent substrate and

The transparent panel being laminated on at least one party of the transparent substrate by optical junction layer,

The electrooptics functional layer can control the shape for making incident light transmissive state and making scatter incident light by the application of voltage State, in the state of making incident light transmission, the transmissivity of the measurement angle of following formula 3 is 60% or more,

Measure angle=arcsin (refractive index/transparent panel of the medium of the part other than the optical junction layer adjacent with transparent panel Refractive index) ... formula 3

In the wavelength region that optical path length is 50mm, wavelength 400nm~700nm, the average internal transmissivity of the transparent panel It is 80% or more.

2. structural body as described in claim 1, which is characterized in that the dynamic when optical junction layer is at 35 DEG C, 1Hz is cut Cutting storage modulus G ' is 1.0 × 10⁵Pa or less.

3. structural body as claimed in claim 1 or 2, which is characterized in that engaged by the optical junction layer described The ratio of the thermal expansion coefficient of bright substrate and the transparent panel is 5 or less.

4. a kind of structural body, which is characterized in that

With the electrooptics functional layer being clamped between a pair of of transparent substrate,

It is formed with electrode on at least one party of the transparent substrate,

The electrooptics functional layer can control the shape for making incident light transmissive state and making scatter incident light by the application of voltage State, in the state of making incident light transmission, the transmissivity of the measurement angle of following formula 4 is 60% or more,

Measure angle=arcsin (refractive index of the medium of the part other than the electrooptics functional layer adjacent with transparent substrate/saturating The refractive index of bright substrate) ... formula 4

In the wavelength region that optical path length is 50mm, wavelength 400nm~700nm, at least one party's of the transparent substrate is flat Equal internal transmission rate is 80% or more.

5. structural body as claimed in claim 2 or 4, which is characterized in that the electrooptics functional layer include liquid-crystal compounds and The orientation limited the orientation of liquid-crystal compounds limits material.

6. structural body as claimed in claim 5, which is characterized in that the orientation limitation material is by hardening resin composition Solidfied material is formed.

7. a kind of transparent display, which is characterized in that

With structural body described in claim 1 or 4,

The transmissivity of hyalomere is 70% or more, transparent in the state of not from the light of the side incidence opposite with display surface The brightness contrast rate of portion and scattering part is 4 or more.

8. a kind of lighting device, which is characterized in that the transmissivity of hyalomere is 70% or more, not from opposite with display surface In the state of the light of side incidence, the brightness contrast rate of hyalomere and scattering part is 4 or more.

9. lighting device as claimed in claim 8, which is characterized in that there is structural body and light source,

The structural body includes

Be formed at least one party electrode a pair of of transparent substrate,

In the wavelength region that optical path length is 50mm, wavelength 400nm~700nm, the average internal transmissivity of the transparent panel It is 80% or more；

The light source configuration is on an at least end face for the transparent panel of the structural body.

10. lighting device as claimed in claim 8, which is characterized in that there is structural body and light source,

The structural body has the electrooptics functional layer being clamped between a pair of of transparent substrate,

It is formed with electrode on at least one party of the transparent substrate,

In the wavelength region that optical path length is 50mm, wavelength 400nm~700nm, at least one party's of the transparent substrate is flat Equal internal transmission rate is 80% or more；

The light source configuration is on an at least end face for the transparent substrate of the structural body.

11. a kind of liquid crystal display device, which is characterized in that have described in any one of liquid crystal display panel and claim 8~10 Lighting device.

12. a kind of information display device, which is characterized in that there is structural body and light source,

The structural body includes

Be formed at least one party electrode a pair of of transparent substrate,

The light source configures on an at least end face for the transparent panel of the structural body,

13. a kind of information display device, which is characterized in that there is structural body and light source,

It is formed with electrode on at least one party of the transparent substrate,