CN107272250A - A kind of display panel and display device - Google Patents
A kind of display panel and display device Download PDFInfo
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- CN107272250A CN107272250A CN201710552997.5A CN201710552997A CN107272250A CN 107272250 A CN107272250 A CN 107272250A CN 201710552997 A CN201710552997 A CN 201710552997A CN 107272250 A CN107272250 A CN 107272250A
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133528—Polarisers
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- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
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- Chemical & Material Sciences (AREA)
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
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Abstract
The invention discloses a kind of display panel and display device, including display base plate, positioned at the first polarizing layer of display base plate light emission side, and at least one layer of functional film layer between the first polarizing layer and display base plate；At least one interface of each film layer is the out-of-flatness interface with the concavo-convex rib of multiple bar shapeds be arrangeding in parallel；The rib for the concavo-convex rib of bar shaped having positioned at outermost out-of-flatness interface is mutually perpendicular to the polarization direction with the first polarizing layer, and the concavo-convex rib of bar shaped has an inclined-plane along rib to extension, the angle of inclined-plane and flat surface is the Brewster's angle that light is inwardly incident to out-of-flatness interface.Use above-mentioned angle that interface when can make ambient light vertical incidence display panel by the out-of-flatness is set with brewster angle incidence, and the ambient light for passing through the first polarizing layer has been converted into linearly polarized light, reflected light of the ambient light in the interface of vertical incidence can be eliminated according to Brewster's law, the surface reflectivity of display panel is thus reduced.
Description
Technical field
The present invention relates to display technology field, espespecially a kind of display panel and display device.
Background technology
With continuing to develop for Display Technique, various types of display devices emerge in an endless stream, the display screen master of current main flow
To include LCDs and organic light-emitting diode (OLED) display screen.LCDs (Liquid Crystal Display, referred to as
LCD) cost of manufacture is lower for organic light-emitting diode (OLED) display screen, but LCD display can not from main light emission, it is necessary to
Backlight module is set.Organic Light Emitting Diode (Organic Light-Emitting Diode, abbreviation OLED) uses self-luminous
Material, it is not necessary to which backlight module is set, while visual angle is wide, fast response time.
But the film layer laminated construction of multiple material is all inevitably used when making which kind of display screen, and it is different
The refractive index of film layer can be variant, then reflection can occur when inciding display screen and reflect in interlayer for extraneous ambient light,
Because the difference of refractive index causes interlayer to produce reflection and add up, cause ambient light higher in the reflectivity of panel surface,
When display screen is shown, this part reflected light can reduce the contrast of display picture, so as to reduce viewing experience.
The content of the invention
The embodiment of the present invention provides a kind of display panel and display device, the surface reflectivity to reduce display panel.
In a first aspect, the embodiment of the present invention provides a kind of display panel, including：Display base plate, positioned at the display base plate
First polarizing layer of light emission side, and at least one layer of functional membrane between first polarizing layer and the display base plate
Layer；Wherein,
First polarizing layer is plane away from the surface of each functional film layer side；
It is bonded to each other between first polarizing layer, each functional film layer and the display base plate, and at least one friendship
Interface is the out-of-flatness interface with the concavo-convex rib of multiple bar shapeds be arrangeding in parallel；The rib of the concavo-convex rib of the bar shaped is to described the
The flat surface of one polarizing layer is parallel；
The rib for the concavo-convex rib of the bar shaped that the out-of-flatness interface farthest apart from the display base plate has to institute
The polarization direction for stating the first polarizing layer is mutually perpendicular to, and the concavo-convex rib of the bar shaped has the inclined-plane along rib to extension, described oblique
The angle of face and the flat surface of first polarizing layer is the cloth scholar that light is incident to the out-of-flatness interface in the first direction
This special angle；
The first direction be light through first polarizing layer to the incident direction inside the display panel.
Second aspect, the embodiment of the present invention provides a kind of display device, including any of the above-described display panel.
The present invention has the beneficial effect that：
Display panel provided in an embodiment of the present invention and display device, including display base plate, positioned at display base plate light emission side
The first polarizing layer, and at least one layer of functional film layer between the first polarizing layer and display base plate；Wherein, the first polarisation
Layer is plane away from the surface of each functional film layer side；It is bonded to each other between first polarizing layer, each functional film layer and display base plate,
And at least one interface is the out-of-flatness interface with the concavo-convex rib of multiple bar shapeds be arrangeding in parallel；Bar shaped bumps rib rib to
It is parallel with the flat surface of the first polarizing layer；The rib of the concavo-convex rib of bar shaped that the out-of-flatness interface farthest apart from display base plate has to
It is mutually perpendicular to the polarization direction of the first polarizing layer, and the concavo-convex rib of bar shaped has the inclined-plane along rib to extension, inclined-plane and first
The angle of the flat surface of polarizing layer is the Brewster's angle that light is incident to out-of-flatness interface in the first direction；First direction is
Light is through the first polarizing layer to the incident direction inside display panel.The inclined-plane having positioned at outermost out-of-flatness interface
It is in the inside incident Brewster's angle of the interface light, then ambient light vertical incidence to be shown to be arranged to smooth interface angle
Can be with brewster angle incidence in the interface Jing Guo the out-of-flatness when showing panel, and the ambient light for passing through the first polarizing layer has turned
Linearly polarized light is changed to, reflected light of the ambient light in the out-of-flatness interface of vertical incidence can be eliminated according to Brewster's law,
Thus reduce the surface reflectivity of display panel.
Brief description of the drawings
Fig. 1 is one of structural representation of display panel provided in an embodiment of the present invention；
Fig. 2 is one of index path of out-of-flatness interface provided in an embodiment of the present invention；
Fig. 3 is the two of the structural representation of display panel provided in an embodiment of the present invention；
Fig. 4 is the three of the structural representation of display panel provided in an embodiment of the present invention；
Fig. 5 is the four of the structural representation of display panel provided in an embodiment of the present invention；
Fig. 6 is the two of the index path of out-of-flatness interface provided in an embodiment of the present invention；
Fig. 7 a are one of schematic cross-section of the concavo-convex rib of bar shaped provided in an embodiment of the present invention；
Fig. 7 b are the two of the schematic cross-section of the concavo-convex rib of bar shaped provided in an embodiment of the present invention；
Fig. 8 a are the dimensional structure diagram of the concavo-convex rib of bar shaped provided in an embodiment of the present invention；
Fig. 8 b are one of overlooking the structure diagram of the concavo-convex rib of bar shaped provided in an embodiment of the present invention；
Fig. 9 a are the two of the overlooking the structure diagram of the concavo-convex rib of bar shaped provided in an embodiment of the present invention；
Fig. 9 b are the three of the schematic cross-section of the concavo-convex rib of bar shaped provided in an embodiment of the present invention；
Figure 10 is one of structural representation of display device provided in an embodiment of the present invention；
Figure 11 is the two of the structural representation of display device provided in an embodiment of the present invention；
Figure 12 is the three of the structural representation of display device provided in an embodiment of the present invention.
Embodiment
The embodiments of the invention provide a kind of display panel and display device, the surface to reduce display panel is reflected
Rate.
It is understandable to enable the above objects, features and advantages of the present invention to become apparent, below in conjunction with accompanying drawing and implementation
The present invention will be further described for example.However, example embodiment can be implemented in a variety of forms, and it is not understood as limited to
Embodiment set forth herein；On the contrary, these embodiments are provided so that the present invention more comprehensively and completely, and by example embodiment party
The design of formula comprehensively conveys to those skilled in the art.Identical reference represents same or similar knot in figure
Structure, thus repetition thereof will be omitted.It is described in the present invention expression position and direction word, be using accompanying drawing as
The explanation that example is carried out, but can also make a change as needed, make change and be all contained in the scope of the present invention.The present invention
Accompanying drawing be only used for illustrate relative position relation, the thickness at some positions employs the plotting mode lavished praise on oneself in order to understand, attached
Thickness in figure does not represent the proportionate relationship of actual thickness.
It should be noted that elaborating detail in the following description to fully understand the present invention.But this hair
Bright to be different from other manner described here with a variety of and be implemented, those skilled in the art can be without prejudice in the present invention
Similar popularization is done in the case of culvert.Therefore the present invention is not limited by following public embodiment.Such as illustrate in the whole text
" side " that the part of book and claim mentioned in is located at another part includes the part and another part phase
Adjacent or non-conterminous situation.It is located at " deviating from " such as the part of the specification in the whole text and claim mentioned in another
" side " of part, comprising the part is adjacent with another part or non-conterminous situation.Specification subsequent descriptions are implementation
The better embodiment of the application, so description is for the purpose of the rule for illustrating the application, to be not limited to this
The scope of application.The protection domain of the application is worked as to be defined depending on the appended claims person of defining.
Below in conjunction with the accompanying drawings, display panel provided in an embodiment of the present invention and display device are described in detail.Wherein,
The thickness and shape of each part do not reflect the actual proportions of display device in accompanying drawing, and purpose is schematically illustrate present invention.
Fig. 1 is one of structural representation of display panel provided in an embodiment of the present invention, as shown in figure 1, the present invention is implemented
The display panel that example is provided, including：Display base plate 11, positioned at the first polarizing layer 12 of the light emission side of display base plate 11, and is located at
At least one layer of functional film layer 13 between first polarizing layer 12 and display base plate 11.
Wherein, the first polarizing layer 12 is plane away from the surface of each side of functional film layer 13；First polarizing layer 12, each function
It is bonded to each other between film layer 13 and display base plate 11, and at least one interface is with the concavo-convex rib of multiple bar shapeds be arrangeding in parallel
100 out-of-flatness interface.
Further, the rib of the concavo-convex rib 100 of bar shaped is parallel to each other to the flat surface with the first polarizing layer 12, and distance shows base
The rib of the concavo-convex rib 100 of bar shaped that the farthest out-of-flatness interface of plate 11 has is to mutual with the polarization direction of the first polarizing layer 12
Vertically, and the concavo-convex rib 100 of bar shaped has the inclined-plane 101 along rib to extension, the flat surface of the polarizing layer 12 of inclined-plane 101 and first
Angle is the Brewster's angle that light is incident to out-of-flatness interface in the first direction.Above-mentioned first direction is light through first
Polarizing layer 12 is to the incident direction inside display panel.
In actual applications, display panel generally may include for carrying out display base plate that image shows and positioned at display
The film layer with optical property or other functions of substrate light emission side, these film layers be carry out display base plate carry out that image shows must
Indispensable, the display effect of display base plate can be improved, also there is certain protective effect to display base plate.Just because of aobvious
Showing the surface of substrate has multiple film layers, and each film layer is made using different materials and causes refractive index to there is poor layer, then
The reflection of ambient light that the surface of each adjacent film layer occurs reflected light when thicknesses of layers and wavelength meet certain relation
Can occur the phenomenon of coherent phase length so that the surface reflectivity of display panel is higher, influence the contrast of display panel.In view of
This, can do the processing that comes to the surface, and combine cloth in display panel provided in an embodiment of the present invention to the interface of at least one film layer
Scholar Si Tedinglv rule makes intensity of reflected light of the ambient light on the surface drop to zero.
Specifically, Brewster's law shows：When light incides two different material interfaces of refractive index, in spy
Reflected light is linearly polarized light under fixed incidence angle, and its direction of vibration and the plane of incidence are perpendicular, reflection light and refracted light
It is mutually perpendicular to, the specific incidence angle is Brewster's angle.According to above-mentioned Brewster's law, if inciding different materials
It is linearly polarized light of the polarization direction parallel to the plane of incidence to expect the incident ray at interface, when incidence angle is Buss spy angle, reflected light
Intensity is zero.Above-mentioned theory is applied in the present invention, be may be such that due to being provided with the first polarizing layer 12 in display panel
Incident ambient light is changed into linearly polarized light after the effect of the first polarizing layer 12, then as long as the polarization of linearly polarized light
Direction is parallel with the plane of incidence, and during with the interface of brewster angle incidence to different materials, it is possible to so that ambient light is at this
The reflectivity of interface declines.
As shown in figure 1, include two layers of functional film layer 13 between the polarizing layer 12 of display base plate 11 and first, and positioned at upside
Interface between the polarizing layer 12 of functional film layer 13 and first is the out-of-flatness interface farthest apart from display panel 11.First is inclined
Horizontal direction of the polarization direction of photosphere 12 as shown in the double-head arrow in Fig. 1, ambient light is after by the first polarizing layer 12
It is converted into the linearly polarized light that polarization direction is horizontal direction.Due in practical application primary concern is that vertical incidence display panel
Ambient light reflection case, therefore multiple bearing of trends and the are set in the first polarizing layer 12 and the interface of functional film layer 13
The concavo-convex rib 100 of the perpendicular bar shaped of the polarization direction (being originally embodied as horizontal direction) of one polarizing layer 12, is in order that vertical
The light of incident display panel can be with the linearly polarized light on brewster angle incidence to above-mentioned interface, and in the plane of incidence
Polarization direction is the horizontal direction parallel to the plane of incidence, so that the intensity of reflected light drops to zero.
Further, the concavo-convex rib 100 of bar shaped of interface how is set to ensure the vertical light for injecting display panel
Incidence angle at interface is that Brewster's angle is the problem of emphasis of the present invention needs consideration.For convenience of description, it is inclined by first
The sectional view partial enlargement of the concavo-convex rib 100 of two bar shapeds of photosphere 12 and the interface of functional film layer 13, Fig. 2 shows above-mentioned
The local index path of out-of-flatness interface, as shown in Fig. 2 bar shaped bumps rib 100 has the inclined-plane 101 along rib to extension.Ring
Border light is converted into the linearly polarized light that polarization direction is horizontal direction, the linear polarization light conduct after through the first polarizing layer 12
Incident ray a1 incides inclined-plane 101, and reflection occurs in inclined-plane face and reflects, reflection light is expressed as a2, refracted light and represented
For a3；Incidence angle and angle of reflection are expressed as ρ1And ρ2.Because light a1 is needed with brewster angle incidence to the ability of inclined-plane 101
The purpose of above-mentioned reduction reflectivity can be reached, therefore according to incidence angle ρ1With its vertical angles, the inclination angle ρ on inclined-plane3Between angularly
Mutual remaining relation, it may be determined that go out between each angle and meet relation：ρ1=ρ2=ρ3.That is as the inclination angle ρ on inclined-plane 1013,
I.e. the angle of the flat surface of the polarizing layer 12 of inclined-plane 101 and first is incident to functional film layer 13 equal to light by the first polarizing layer 12
During Brewster's angle, above-mentioned light a1 can be made with brewster angle incidence inclined-plane 101, to reduce the reflection on inclined-plane 101
Rate.
Further, it can be seen from the reversible principle of light path, when light is incident against the direction of original reflection light
During to matter interface, it must be reflected against original incident direction.Explanation is distinguished for convenience, and light is divided into two groups in fig. 2
Illustrated.Left side index path illustrates the light a1 after above-mentioned the first polarizing layer of vertical incidence 12 to occur on inclined-plane 101 in Fig. 2
The light path of reflection；Right side index path signal incides the light path that inclined-plane 101 reflects against former reflection light a2 in Fig. 2.Fig. 2
Middle right side index path is the light path for the reflection light for illustrating vertical incidence human eye.Enter against former reflection light a2 to inclined-plane
101 light a2 ' reflection light a1 ' is left side light a1 reverse light, and light a2 ' incidence angle ρ2' and light a2
Angle of reflection ρ2It is equal, light a1 ' angles of reflection ρ1' with light a1 incidence angle ρ1It is equal.It can be seen from light path principle, hang down
The reflection light a1 ' of straight outwards outgoing is ρ by incident angle2' light a2 ' reflections produce, and ρ2'=ρ2=ρ1=ρ3, because
This, light a2 ' it is same with brewster angle incidence to inclined-plane 101, and its polarization direction is the horizontal direction parallel to the plane of incidence,
Its reflection light a1 ' is only linearly polarized light of the polarization direction perpendicular to the plane of incidence, and the plane of incidence is not perpendicular in incident light
Oscillating component, therefore reflection light a1 ' intensity also drops to zero.User is usually located at display when watching display panel
The light of display panel received by the front of panel, i.e. user is mostly such as the light in light a1 ' directions, according to above-mentioned
Illustrate to understand, the reflected light of ambient light be not present on light a1 ' direction, that is to say, that, it is possible to create vertical incidence human eye
Reflection light a1 ' incident ray a2 ' with brewster angle incidence to inclined-plane 101, therefore can not produce reflection light a1 ',
The influence of light that the reflected light of ambient light generation is sent to display panel is reduced, the contrast of display picture is which thereby enhanced,
Lift the viewing experience of user.
In the specific implementation, above-mentioned display panel provided in an embodiment of the present invention can be liquid crystal display panel, and its structure is such as
Shown in Fig. 3, Fig. 3 is the two of the structural representation of display panel provided in an embodiment of the present invention, and display base plate 11 may include relatively
And the array base palte 111 and color membrane substrates 112 put；Then include at least one layer between the first polarizing layer 12 and color membrane substrates 112
Functional film layer 13.In actual applications, functional film layer 13 may include protective layer, high transmittance film layer or screen layer etc., as needed may be used
Flexibly to set, the embodiment of the present invention is not limited specifically it.
Several film layer dispositions only to liquid crystal display panel so that above-mentioned functional film layer is screen layer as an example are entered below
Row is illustrated.Screen layer is represented in the accompanying drawing corresponding to following explanations with 13 '；The polarization side of first polarizing layer 12
To by taking horizontal direction as an example, and polarization direction of the bearing of trend with the first polarization layer 12 of the concavo-convex rib of bar shaped is mutually hung down
Directly；The flat surface of first polarizing layer 12 is upper surface.
In a kind of enforceable mode, as shown in figure 3, the interface of the first polarizing layer 12 and screen layer 13 ' can be for not
Smooth interface；The out-of-flatness interface includes the concavo-convex rib 200 of multiple first bar shapeds, and the first bar shaped bumps rib 200 is along rib to prolonging
The inclined-plane stretched is the first inclined-plane 201, and the angle of the flat surface of the first inclined-plane 201 and the first polarizing layer 12 is light by the first polarisation
Layer 12 is incident to the Brewster's angle of screen layer 13 '.
The principle that ambient light is reduced in the interface reflectivity of the first polarizing layer 12 and screen layer 13 ' in the present embodiment
Similar with above-mentioned principle, here is omitted.In actual applications, above-mentioned screen layer 13 ' can be entered using transparent conductive material
Row makes, and is made such as the zinc oxide (AZO) that can be adulterated using tin indium oxide (ITO), aluminium.Made using transparent conductive material
Making screen layer 13 ' can will not stop the unnecessary electron screening produced by unwanted electrostatic or display base plate aobvious again
Show the light extraction of substrate.Screen layer 13 ' is surface-treated away from the surface of the side of the first underlay substrate 112, it is multiple to be formed
The first concavo-convex rib 200 that above-mentioned bearing of trend is parallel to each other.After the screen layer 13 ' that completes, then on the surface of screen layer 13 '
Polarity glue material is coated, the convex-concave surface of polarizing materials and screen layer 13 ' is fitted, to form the first polarizing layer 12 and shielding
Out-of-flatness interface between layer 13 ', it is the first of horizontal direction that polarization direction can be formed after finally polarizing materials are solidified
Polarizing layer 12.
In another enforceable mode, as shown in figure 4, the structure for display panel provided in an embodiment of the present invention is shown
The three of intention, display base plate 11 includes array base palte 111 and color membrane substrates 112 relative and put, in array base palte 111 and color film
Also include liquid crystal layer (not marked in Fig. 4) between substrate 112.Wherein, color membrane substrates include the first underlay substrate 1121, and color film
Substrate 112 is the first underlay substrate 1121 with the side that screen layer 13 ' fits；Screen layer 13 ' and the first underlay substrate 1121
Interface can be out-of-flatness interface；The out-of-flatness interface includes the concavo-convex rib 300 of multiple second bar shapeds, and the second bar shaped is concavo-convex
Inclined-plane of the rib 300 along rib to extension is the second inclined-plane 301, and the second inclined-plane 301 and the angle of the flat surface of the first polarizing layer 12 are
Light is incident to the Brewster's angle of the first underlay substrate 1121 by screen layer 13 '.
Ambient light is reduced in the interface reflectivity of screen layer 13 ' and the first underlay substrate 1121 in the present embodiment
Principle is similar with above-mentioned principle, and here is omitted.In actual applications, array base first can be deviated to the first underlay substrate 1121
The surface of the side of plate 111 is surface-treated, to form the concavo-convex rib 300 of multiple the second bar shapeds being parallel to each other, then in the first lining
The surface coating transparent conductive material of substrate 1121, makes the surface phase of transparent conductive material and the first underlay substrate 1121
Mutually laminating, to form the interface of above-mentioned out-of-flatness, after formation screen layer 13 ' after transparent conductive material solidification.
Because the ambient light of vertical incidence is reduced in the intensity of reflected light of the interface of out-of-flatness, and in smooth interface
It there will still likely be reflection and increase stronger phenomenon.Therefore, can preferentially it be selected in the reflectivity of interlayer to reduce vertical incidence ambient light
The interface that light interface incident at first is set to out-of-flatness is selected, for example, in two kinds of above-mentioned embodiments, can be preferential
The interface of first polarizing layer 12 and screen layer 13 ' is set to the interface of out-of-flatness by selection.Thus, ambient light can be made most
The reflectivity reduction of first incident interface, and other interfaces again internally it is incident when incident direction change, will not
Stronger reflection is produced on the direction at positive visual angle.
And as another enforceable mode, as shown in figure 5, Fig. 5 is display panel provided in an embodiment of the present invention
The four of structural representation, the side that color membrane substrates 112 fit with screen layer 13 ' still includes the first underlay substrate 1121, with Fig. 4
The difference of shown display panel is, the interface and screen layer 13 ' of the first polarizing layer 12 and screen layer 13 ' and the
The interface of one underlay substrate 1121 is out-of-flatness interface.
Wherein, the interface of the first polarizing layer 12 and screen layer 13 ' includes the concavo-convex rib 400 of multiple Article 3 shapes, Article 3
Inclined-plane of the shape bumps rib 400 along rib to extension is the 3rd inclined-plane 401, the flat surface 12 of the 3rd inclined-plane 401 and the first polarizing layer
Angle is θ1；The interface of the underlay substrate 1121 of screen layer 12 and first includes the concavo-convex rib 500 of multiple Article 4 shapes, Article 4 shape
Inclined-plane of the concavo-convex rib 500 along rib to extension is the 4th inclined-plane 501, the folder of the flat surface of the 4th inclined-plane 501 and the first polarizing layer 12
Angle meets below equation：
The θ of α=21+θ2-90°；
Wherein, α is the angle of the flat surface of the 4th inclined-plane 501 and the first polarizing layer 12, θ1It is light by the first polarizing layer
12 are incident to the Brewster's angle of screen layer 12, θ2For light by screen layer 12 be incident to the first underlay substrate 1121 cloth scholar this
Special angle.
In the present embodiment, light is inciding the light path of the interface of above-mentioned two out-of-flatness as shown in fig. 6, wherein,
Light b1 of the ambient light of vertical incidence display panel when inciding three inclined-planes 401, its reflection light b2 intensity decline
It is zero, the angle of the upper expression of the 3rd inclined-plane 401 and the first polarizing layer 12 is equal to the angle α shown in Fig. 6 ', the angle α ' it is equal to
When light is incident to the Brewster's angle of screen layer 13 ' by the first polarizing layer 12, it is possible to decrease in the first polarizing layer 12 and screen layer
13 ' and surface reflectivity, its principle is similar with reflection light a2 principle with above-mentioned incident ray a1, repeats no more in addition.And
If light b1 refracted light b3 wants to reach the effect of reflectivity reduction, it is necessary to so that light when inciding four inclined-planes 501
Line b3 is with brewster angle incidence to the 4th inclined-plane 501, then need to set the inclination alpha on the 4th inclined-plane under the premise of herein
Meter.
Specifically, if the incidence angle that light b1 incides the 3rd inclined-plane 401 is θ1, refraction angle is θ3；Refracted light b3 is incident
Incidence angle to the 5th inclined-plane is θ2When, according to the relation of the mutual remaining complementation of each angle, relationship below can be obtained：
α+90°-θ2=θ1+90°-θ3；
And it can be seen from Brewster's law, refraction angle and angle of reflection are mutually remaining relation, and incidence angle and angle of reflection phase
Deng, therefore relationship below can be waited until：
θ1+θ3=90 °；
It is possible thereby to calculate the inclined angle alpha when the 4th inclined-plane 501, i.e. the 4th inclined-plane 501 is upper with the first polarizing layer 12
The angle on surface is equal to the θ of α=21+θ2At -90 °, reflection light b4 intensity can be made also to drop to zero, so as to reduce ambient light
In the reflectivity of two out-of-flatness interfaces, compared with the above-mentioned situation for being separately provided out-of-flatness interface, the present embodiment
Reduce the better of ambient light surface reflectivity.
, can be concavo-convex by the bar shaped in out-of-flatness interface in order to further reduce the reflectivity of ambient light out-of-flatness boundary
The inclined-plane of rib is set to the structure that section is symmetric figure, as shown in figs. 7 a and 7b, and respectively two kinds of the concavo-convex rib of bar shaped are cut
Face schematic diagram, bar shaped bumps rib 100 is in the sectional view perpendicular to the flat surface of the first polarizing layer 12 relative to the first polarizing layer 12
Flat surface normal OO ' it is symmetrical.As shown in Figure 7a, the sectional view of the concavo-convex rib 100 of bar shaped can be isosceles triangle, isosceles three
Angular base angle may be configured as the Brewster's angle of the incident interface of light；Or, as shown in Figure 7b, bar shaped bumps rib 100
Sectional view be alternatively isosceles trapezoid, the base angle of isosceles trapezoid may be configured as the Brewster's angle of the incident interface of light.
In actual applications, the sectional view of the concavo-convex rib 100 of bar shaped can be also arranged as required to, is not limited herein.
Fig. 8 a are the dimensional structure diagram of the concavo-convex rib of bar shaped provided in an embodiment of the present invention, the bar shown in Fig. 8 b Fig. 8 a
The overlooking the structure diagram of shape bumps rib.If the mode of bar shaped convex-concave rib as shown in Figure 8 a is disposed as in actual applications
Extend in the same direction, and when length, height and consistent shape, regular figure noisy to display picture tool can be made
With easily being caused in the exiting surface of display panel for moire fringes, in order to avoid that should avoid making in the moire fringes embodiment of the present invention
With the arrangement mode of the concavo-convex rib 100 of bar shaped as shown in Figure 8 b, the concavo-convex rib of each bar shaped can be randomly distributed.
It is the structure of the concavo-convex rib of bar shaped provided in an embodiment of the present invention as illustrated in fig. 9 in a kind of enforceable mode
Schematic diagram, the length of the concavo-convex rib 100 of each bar shaped can be set to be not completely equivalent.The concavo-convex rib 100 of each bar shaped when being arranged
Without along same lineal layout, as long as protecting, ask in the case of its bearing of trend all same can any Heterogeneous Permutation.Another
It is the schematic cross-section of the concavo-convex rib of bar shaped provided in an embodiment of the present invention as shown in figure 9b in a kind of enforceable mode, can be by
The height of the concavo-convex rib 100 of each bar shaped be set to the concavo-convex rib 100 of two not all equal, adjacent bar shapeds height can it is equal not yet
Deng, and the sectional view of the concavo-convex rib of bar shaped is similar fitgures.In actual applications, can also combine above two embodiment makes
With also can be used alone, do not limit herein.
Based on same inventive concept, the embodiment of the present invention also provides a kind of display device, and the display device includes above-mentioned
One display panel.The display device can for liquid crystal panel, liquid crystal display, LCD TV, organic LED display panel,
The display devices such as OLED display, OLED TVs or Electronic Paper.Or the mobile device such as mobile phone, smart mobile phone.
It is the structural representation of display device provided in an embodiment of the present invention as shown in Figure 10 by taking liquid crystal display device as an example
One of figure, display base plate 11 includes：The array base palte 111 and color membrane substrates 112 put relatively；Display device also includes：It is located at
Array base palte 111 deviates from the backlight module 14 of the side of color membrane substrates 112.The emergent ray normal incidence of backlight module 14 is to display surface
In plate, by controlling the polarization of the corresponding liquid crystal layer of each pixel, the brightness regulation of transmitted light can be achieved.
In a kind of enforceable mode, in above-mentioned display device provided in an embodiment of the present invention, as shown in figure 11, it is
The two of the structural representation of display device provided in an embodiment of the present invention, backlight module 14 may include：Light guide plate 141 and it is located at
The reflecting polarized wafer 142 of the light emission side of light guide plate 141；Display panel also includes：Deviate from color membrane substrates positioned at array base palte 111
Second polarizing layer 15 of 112 1 side surfaces.Reflecting polarized wafer 142 is set to make in backlight module reflective partially parallel to this
The oscillating component of the light of the polarization direction of mating plate 142 passes through, and the oscillating component that will be perpendicular to the light of polarization direction is anti-again
Light guide plate 141 is emitted back towards, the light of outgoing can be parallel to reflecting polarized wafer again after the total reflection effect of light guide plate 141
The light component of 142 polarization direction is passed through, and thus improves the light utilization of light guide plate, is using reflecting polarized wafer 142
During as light increasing element, backlight module 14 to the light of array base palte outgoing be linearly polarized light.
However, when the emergent ray of backlight module incides the surface of array base palte 111, due to the table of array base palte 111
The refractive index difference of each film layer in face will also result in the problem of its surface reflectivity is higher.Therefore in order to improve the light of backlight module
Utilization rate, above-mentioned surface treatment operations can be also carried out based on same inventive concept by the superficial film of array base palte.
In a kind of enforceable mode, as shown in figure 11, surface of second polarizing layer 15 towards the side of array base palte 111
For plane, the second polarizing layer 15 has the concavo-convex rib of multiple Article 5 shapes be arrangeding in parallel away from the surface of the side of array base palte 111
600, the polarization direction of the bearing of trend and reflecting polarized wafer 142 of Article 5 shape bumps rib 600 is mutually perpendicular to；Article 5 shape
Concavo-convex rib 600 has the 5th inclined-plane 601 along rib to extension, and the folder of the flat surface of the 5th inclined-plane 601 and the second polarizing layer 15
Angle is Brewster's angle of the light by air incidence to the second polarizing layer 15.
The polarization direction of reflecting polarized wafer 142 is horizontal direction as shown in figure 11, therefore, backlight mould in the present embodiment
The light of group outgoing is also linearly polarized light that polarization direction is horizontal direction, the linearly polarized light vertical incidence array base palte, and
The incidence angle on the 5th inclined-plane 601 of the second polarizing layer 15 is Brewster's angle of the light by air incidence to the second polarizing layer 15
When, according to Brewster's law, the intensity of reflected light will drop to zero, and it can be seen from law of conservation of energy, when reflected light
When energy reduces, the energy of its transmitted light is necessarily increased.The emergent ray of backlight module is thus reduced in the second polarizing layer 15
Surface reflectivity, make it is more incident enter in display panels, improve the light utilization efficiency of backlight module.
It is the structure of display device provided in an embodiment of the present invention as shown in figure 12 in another enforceable mode
The three of schematic diagram, display panel also includes：Deviate from the high transmittance film 16 of the side surface of array base palte 111 1 positioned at the second polarizing layer 15；
High transmittance film 16 is plane towards the surface of the side of the second polarizing layer 15, and high transmittance film 16 has away from the surface of the side of the second polarizing layer 15
There are the concavo-convex rib 700 of multiple Article 6 shapes be arrangeding in parallel, the bearing of trend and reflecting polarized wafer of Article 6 shape bumps rib 700
142 polarization direction is mutually perpendicular to；Article 6 shape bumps rib 700 has the 6th inclined-plane 701 along from rib to extension, and the 6th oblique
The angle of the flat surface of face 701 and high transmittance film 16 is Brewster's angle of the light by air incidence to high transmittance film 16.
In the present embodiment, it is saturating that the surface that can deviate from the side of array base palte 111 in the second polarizing layer 15 is initially formed a floor height
Film to increase the light transmission rate of backlight module, then by high transmittance film and air contact, the i.e. table away from the side of the second polarizing layer 15
Face is surface-treated, and formation can make light with the 6th inclined-plane 701 of brewster angle incidence, so as to reduce going out for backlight module
Light the surface reflectivity, its reduce surface reflectivity principle it is similar with the above embodiment of the present invention, repeat no more in addition.
Display panel provided in an embodiment of the present invention and display device, including display base plate, positioned at display base plate light emission side
The first polarizing layer, and at least one layer of functional film layer between the first polarizing layer and display base plate；Wherein, the first polarisation
Layer is plane away from the surface of each functional film layer side；It is bonded to each other between first polarizing layer, each functional film layer and display base plate,
And at least one interface is the out-of-flatness interface with the concavo-convex rib of multiple bar shapeds be arrangeding in parallel；Bar shaped bumps rib rib to
It is parallel with the flat surface of the first polarizing layer；The rib of the concavo-convex rib of bar shaped that the out-of-flatness interface farthest apart from display base plate has to
It is mutually perpendicular to the polarization direction of the first polarizing layer, and the concavo-convex rib of bar shaped has the inclined-plane along rib to extension, inclined-plane and first
The angle of the flat surface of polarizing layer is the Brewster's angle that light is incident to out-of-flatness interface in the first direction；First direction is
Light is through the first polarizing layer to the incident direction inside display panel.The inclined-plane having positioned at outermost out-of-flatness interface
It is in the inside incident Brewster's angle of the interface light, then ambient light vertical incidence to be shown to be arranged to smooth interface angle
Can be with brewster angle incidence in the interface Jing Guo the out-of-flatness when showing panel, and the ambient light for passing through the first polarizing layer has turned
Linearly polarized light is changed to, reflected light of the ambient light in the out-of-flatness interface of vertical incidence can be eliminated according to Brewster's law,
Thus reduce the surface reflectivity of display panel.
, but those skilled in the art once know basic creation although preferred embodiments of the present invention have been described
Property concept, then can make other change and modification to these embodiments.So, appended claims are intended to be construed to include excellent
Select embodiment and fall into having altered and changing for the scope of the invention.
Obviously, those skilled in the art can carry out the essence of various changes and modification without departing from the present invention to the present invention
God and scope.So, if these modifications and variations of the present invention belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising including these changes and modification.
Claims (17)
1. a kind of display panel, it is characterised in that including：Display base plate, positioned at the first polarisation of the display base plate light emission side
Layer, and at least one layer of functional film layer between first polarizing layer and the display base plate；Wherein,
First polarizing layer is plane away from the surface of each functional film layer side；
It is bonded to each other between first polarizing layer, each functional film layer and the display base plate, and at least one interface
For the out-of-flatness interface with the concavo-convex rib of multiple bar shapeds be arrangeding in parallel；The rib of the concavo-convex rib of the bar shaped to it is described first inclined
The flat surface of photosphere is parallel；
The rib for the concavo-convex rib of the bar shaped that the out-of-flatness interface farthest apart from the display base plate has is to described the
The polarization direction of one polarizing layer is mutually perpendicular to, and the concavo-convex rib of the bar shaped has an inclined-plane along rib to extension, the inclined-plane with
The angle of the flat surface of first polarizing layer is the Brewster that light is incident to the out-of-flatness interface in the first direction
Angle；
The first direction be light through first polarizing layer to the incident direction inside the display panel.
2. display panel as claimed in claim 1, it is characterised in that the display base plate includes array base palte that is relative and putting
And color membrane substrates；
Include at least one layer of functional film layer between first polarizing layer and the color membrane substrates.
3. display panel as claimed in claim 2, it is characterised in that the functional film layer is screen layer.
4. display panel as claimed in claim 3, it is characterised in that the interface of first polarizing layer and the screen layer
For the out-of-flatness interface；
The out-of-flatness interface includes the concavo-convex rib of multiple first bar shapeds, inclined-plane of the concavo-convex rib of first bar shaped along rib to extension
For the first inclined-plane, the angle of first inclined-plane and the flat surface of first polarizing layer is that light is entered by first polarizing layer
It is incident upon the Brewster's angle of the screen layer.
5. display panel as claimed in claim 3, it is characterised in that the color membrane substrates fitted with the screen layer one
Side is the first underlay substrate；
The interface of the screen layer and first underlay substrate is the out-of-flatness interface；
The out-of-flatness interface includes the concavo-convex rib of multiple second bar shapeds, inclined-plane of the concavo-convex rib of second bar shaped along rib to extension
For the second inclined-plane, the angle of second inclined-plane and the flat surface of first polarizing layer is that light is incident to by the screen layer
The Brewster's angle of first underlay substrate.
6. display panel as claimed in claim 3, it is characterised in that the color membrane substrates fitted with the screen layer one
Side is the first underlay substrate；
The boundary of first polarizing layer and the interface and the screen layer and first underlay substrate of the screen layer
Face is the out-of-flatness interface；
The interface of first polarizing layer and the screen layer includes the concavo-convex rib of multiple Article 3 shapes, and the Article 3 shape is concavo-convex
Inclined-plane of the rib along rib to extension is the 3rd inclined-plane, and the 3rd inclined-plane and the angle of the flat surface of first polarizing layer are θ1；
The interface of the screen layer and first underlay substrate includes the concavo-convex rib of multiple Article 4 shapes, and the Article 4 shape is recessed
Inclined-plane of the fin along rib to extension is the 4th inclined-plane, and the 4th inclined-plane and the angle of the flat surface of first polarizing layer are met
Below equation：
The θ of α=21+θ2-90°；
Wherein, α is the 4th inclined-plane and the angle of the flat surface of first polarizing layer, θ1It is light by first polarisation
Layer is incident to the Brewster's angle of the screen layer, θ2The cloth of first underlay substrate is incident to by the screen layer for light
This special angle of scholar.
7. the display panel as described in claim any one of 1-6, it is characterised in that the concavo-convex rib of the bar shaped is perpendicular to described the
The sectional view of one polarizing layer flat surface is symmetrical relative to the normal of the flat surface of first polarizing layer.
8. display panel as claimed in claim 7, it is characterised in that the sectional view of the concavo-convex rib of the bar shaped is isoceles triangle
Shape.
9. the display panel as described in claim any one of 3-6, it is characterised in that the material of the screen layer is electrically conducting transparent
Material.
10. the display panel as described in claim any one of 1-6, it is characterised in that each concavo-convex rib of the bar shaped irregularly divides
Cloth.
11. display panel as claimed in claim 10, it is characterised in that the incomplete phase of length of each concavo-convex rib of the bar shaped
Deng.
12. display panel as claimed in claim 10, it is characterised in that the height of each concavo-convex rib of the bar shaped is not all equal.
13. a kind of display device, it is characterised in that including the display panel as described in claim any one of 1-12.
14. display device as claimed in claim 13, it is characterised in that the display base plate includes：The array put relatively
Substrate and color membrane substrates；
The display device also includes：Deviate from the backlight module of the color membrane substrates side positioned at the array base palte.
15. display device as claimed in claim 14, it is characterised in that the backlight module includes：Light guide plate and it is located at
The reflecting polarized wafer of the light guide plate light emission side；
The display panel also includes：Deviate from the second polarizing layer of the side surface of color membrane substrates one positioned at the array base palte.
16. display device as claimed in claim 15, it is characterised in that second polarizing layer is towards the array base palte one
The surface of side be plane, second polarizing layer away from the array base palte side surface have it is multiple be arranged in parallel the 5th
Bar shaped bumps rib, the bearing of trend of the concavo-convex rib of the Article 5 shape mutually hangs down with the polarization direction of the reflecting polarized wafer
Directly；
The concavo-convex rib of the Article 5 shape has the 5th inclined-plane along rib to extension, and the 5th inclined-plane and second polarizing layer
The angle of flat surface be Brewster's angle of the light by air incidence to second polarizing layer.
17. display device as claimed in claim 15, it is characterised in that the display panel also includes：Positioned at described second
Polarizing layer deviates from the high transmittance film of the side surface of array base palte one；
The high transmittance film is plane towards the surface of the second polarizing layer side, and the high transmittance film deviates from second polarizing layer
The surface of side has a concavo-convex ribs of multiple Article 6 shapes for be arrangeding in parallel, the bearing of trend of the concavo-convex rib of the Article 6 shape with it is described
The polarization direction of reflecting polarized wafer is mutually perpendicular to；
The concavo-convex rib of the Article 6 shape has the 6th inclined-plane along rib to extension, and the 6th inclined-plane and the high transmittance film is flat
The angle on surface is Brewster's angle of the light by air incidence to the high transmittance film.
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| CN201710552997.5A CN107272250B (en) | 2017-07-07 | 2017-07-07 | A kind of display panel and display device |
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