CN109065578A - Display module and display device - Google Patents
Display module and display device Download PDFInfo
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- CN109065578A CN109065578A CN201810832503.3A CN201810832503A CN109065578A CN 109065578 A CN109065578 A CN 109065578A CN 201810832503 A CN201810832503 A CN 201810832503A CN 109065578 A CN109065578 A CN 109065578A
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- display module
- phase difference
- viewing angle
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/50—OLEDs integrated with light modulating elements, e.g. with electrochromic elements, photochromic elements or liquid crystal elements
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Abstract
The present invention discloses a kind of display module and display device, it is related to field of display technology, it include: array substrate, organic light-emitting structure, cover-plate glass and the rotatory polarization piece, the viewing angle compensating layers between organic light-emitting structure and rotatory polarization piece that are successively set in array substrate along the direction perpendicular to plane where array substrate, rotatory polarization piece includes phase difference film；Refractive index of the viewing angle compensating layers in three-dimensional system of coordinate is respectively n1x、n1y、n1z, refractive index of the phase difference film in three-dimensional system of coordinate is respectively n2x、n2y、n2z, and n2x> n2y≥n2z；Wherein, n1z> n2z, and/or, n1x< n2x；Refractive index of the display module in three-dimensional system of coordinate is n0x、n0y、n0z；Refractive index of the display module in three-dimensional system of coordinate meets n0x> n0z> n0y.It is different to be so conducive to reduction bring phase difference under different perspectives, promotes the visual experience effect of user.
Description
Technical field
The present invention relates to field of display technology, more particularly, to a kind of display module and display device.
Background technique
In recent years, organic electroluminescence device (OLED, Organic Light-Emitting Diode) has become sea
Inside and outside very popular Flat Panel Display Industry is called follow-on " star " flat panel display, this is primarily due to
OLED have low in energy consumption, self-luminous, the reaction time is fast, luminous efficiency is high, plate thickness is thin, can make large scale and bendable
The features such as panel, processing procedure are simple, inexpensive.Organic electroluminescence device includes multiple organic light-emitting structures, organic light-emitting structure
Including reflecting electrode (anode), luminous material layer and half reflection electrode (cathode).Hole and electronics are infused from anode and cathode respectively
Enter into luminous material layer, generates energy in conjunction with generation exciton in luminous material layer and when exciton is converted to ground state from excitation state
Amount, it is luminous to realize with this.
Generally, due to the presence of reflecting electrode and half reflection electrode, so that the reflectivity of organic electroluminescence display device and method of manufacturing same
It is very high.It,, can also mixed reflection in addition to the light for thering is display device itself to issue under display state due to the reflection of exterior light
The light of electrode and the reflection of half reflection electrode, substantially reduces so as to cause the contrast of display device, thus, it will usually it is showing
Rotatory polarization piece is introduced in device to reduce the reflectivity of display device to improve its contrast, but after introducing rotatory polarization piece,
So that display device is in different perspectives bring phase difference, there are larger differences, so that occurring under big visual angle (strabismus angle) larger
Transmitting color difference, to influence the visual experience effect of user.
Summary of the invention
In view of this, the present invention provides a kind of display module and display devices, visual angle benefit is introduced in display module
Layer is repaid, by the compensating action of viewing angle compensating layers, so that the refractive index of display module and display device in three-dimensional system of coordinate is full
Sufficient n0x> n0z> n0y, display module and the display device difference existing for the phase difference under different perspectives are greatly reduced, is subtracted
Reflection color difference under small big visual angle promotes the view of user to be conducive to be promoted the viewing angle characteristic of display module and display device
Feel experience effect.
In a first aspect, the application provides a kind of display module, comprising: array substrate is put down along perpendicular to where array substrate
The direction in face is successively set on organic light-emitting structure, cover-plate glass and rotatory polarization piece in the array substrate, the rotatory polarization
Piece includes phase difference film；
Further include viewing angle compensating layers, the viewing angle compensating layers be located at the organic light-emitting structure and the rotatory polarization piece it
Between；
Refractive index of the viewing angle compensating layers in three-dimensional system of coordinate is respectively n1x、n1y、n1z, the institute of the rotatory polarization piece
Refractive index of the rheme phase difference film in three-dimensional system of coordinate is respectively n2x、n2y、n2z, and meet n2x> n2y≥n2z；Wherein, n1z
> n2z, and/or, n1x< n2x；
Refractive index of the display module in three-dimensional system of coordinate is n0x、n0y、n0z；The display module is in three-dimensional coordinate
Refractive index in system meets n0x> n0z> n0y。
Second aspect, the application provide a kind of display device, including display module, which is provided herein
Display module.
Compared with prior art, display module and display device provided by the invention at least realize following beneficial effect
Fruit:
In display module and display device provided herein, introduced between organic light-emitting structure and rotatory polarization piece
Viewing angle compensating layers, since refractive index of the phase difference film in three-dimensional system of coordinate of rotatory polarization piece meets n2x> n2y≥n2z, and draw
N1 in the viewing angle compensating layers enteredz> n2z, and/or, n1x< n2x, this can effectively make up in the phase difference film of rotatory polarization piece by
In n2zSmaller or n2xCaused by larger under different perspectives the different larger phenomenon of bring phase difference so that display module and
Refractive index of the display device in three-dimensional system of coordinate meets n0x> n0z> n0y, therefore be conducive to reduce display module and display dress
The phase difference set under big visual angle is different, reduces the reflection color difference under big visual angle, to be conducive to promote display module and display dress
The viewing angle characteristic set promotes the visual experience effect of user.
Certainly, implementing any of the products of the present invention specific needs while must not reach all the above technical effect.
By referring to the drawings to the detailed description of exemplary embodiment of the present invention, other feature of the invention and its
Advantage will become apparent.
Detailed description of the invention
It is combined in the description and the attached drawing for constituting part of specification shows the embodiment of the present invention, and even
With its explanation together principle for explaining the present invention.
Fig. 1 show a kind of top view of display module provided by the embodiment of the present application；
Fig. 2 show a kind of AA ' sectional view of display module provided by Fig. 1；
Fig. 3 show refractive index of the phase difference film of rotatory polarization piece provided by the embodiment of the present application in three-dimensional system of coordinate
Performance figure；
Fig. 4 show refractive index performance figure of the viewing angle compensating layers provided by the embodiment of the present application in three-dimensional system of coordinate；
Fig. 5 show refractive index performance figure of the display module provided by the embodiment of the present application in three-dimensional system of coordinate；
Fig. 6 show another AA ' sectional view of display module provided by Fig. 1；
Fig. 7 show another AA ' sectional view of display module provided by Fig. 1；
Fig. 8 show another AA ' sectional view of display module provided by Fig. 1；
Fig. 9 show another AA ' sectional view of display module provided by Fig. 1；
Figure 10 show a kind of composition schematic diagram of rotatory polarization piece in display module provided by the embodiment of the present application；
Figure 11 show work when rotatory polarization piece includes λ/4 phase difference film in display module provided by the embodiment of the present application
Make schematic diagram；
Figure 12 show the another of rotatory polarization piece in display module provided by the embodiment of the present application and constitutes schematic diagram；
Figure 13 show working principle diagram when rotatory polarization piece includes the phase difference film of λ/2 and λ/4 phase difference film；
Figure 14 show a kind of structural schematic diagram of display device provided by the embodiment of the present application.
Specific embodiment
Carry out the various exemplary embodiments of detailed description of the present invention now with reference to attached drawing.It should also be noted that unless in addition having
Body explanation, the unlimited system of component and the positioned opposite of step, numerical expression and the numerical value otherwise illustrated in these embodiments is originally
The range of invention.
Be to the description only actually of at least one exemplary embodiment below it is illustrative, never as to the present invention
And its application or any restrictions used.
Technology, method and apparatus known to person of ordinary skill in the relevant may be not discussed in detail, but suitable
In the case of, the technology, method and apparatus should be considered as part of specification.
It is shown here and discuss all examples in, any occurrence should be construed as merely illustratively, without
It is as limitation.Therefore, other examples of exemplary embodiment can have different values.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, then in subsequent attached drawing does not need that it is further discussed.
In the prior art, organic light-emitting structure generally includes reflecting electrode (anode), luminous material layer and half reflection electrode
(cathode).Hole and electronics are injected into luminous material layer from anode and cathode respectively, are combined to generate in luminous material layer and be swashed
Sub and exciton generates energy when being converted to ground state from excitation state, luminous to realize with this.Generally, due to reflecting electrode and half reflection
The presence of electrode, so that the reflectivity of organic electroluminescence display device and method of manufacturing same is very high.Due to the reflection of exterior light, in display state
Under, in addition to the light for thering is display device itself to issue, can also mixed reflection electrode and half reflection electrode reflection light, to lead
It causes the contrast of display device to substantially reduce, therefore rotatory polarization piece would generally be introduced in a display device to reduce display device
Reflectivity is to improve its contrast, but after introducing rotatory polarization piece, so that display device is in different perspectives bring phase difference
There are larger differences, so that there is biggish transmitting color difference under big visual angle (strabismus angle), to influence the visual experience of user
Effect.
In view of this, the present invention provides a kind of display module and display devices, visual angle benefit is introduced in display module
Layer is repaid, by the compensating action of viewing angle compensating layers, so that the refractive index of display module and display device in three-dimensional system of coordinate is full
Sufficient n0x> n0z> n0y, display module and the display device difference existing for the phase difference under different perspectives are greatly reduced, is subtracted
Reflection color difference under small big visual angle promotes the view of user to be conducive to be promoted the viewing angle characteristic of display module and display device
Feel experience effect.
Fig. 1 show a kind of top view of display module provided by the embodiment of the present application, and Fig. 2 show Fig. 1 and provided
Display module a kind of AA ' sectional view, display module 100 provided by the embodiment of the present application combined with Figure 1 and Figure 2, comprising:
Array substrate 10 is successively set on the organic light emission knot in array substrate 10 along the direction perpendicular to 10 place plane of array substrate
Structure 20, cover-plate glass 30 and rotatory polarization piece 50, rotatory polarization piece 50 include phase difference film 52；
It further include viewing angle compensating layers 40, viewing angle compensating layers 40 are between organic light-emitting structure 20 and rotatory polarization piece 50；
Refractive index of the viewing angle compensating layers 40 in three-dimensional system of coordinate is respectively n1x、n1y、n1z, the phase difference of rotatory polarization piece 50
Refractive index of the film 52 in three-dimensional system of coordinate is respectively n2x、n2y、n2z, and meet n2x> n2y≥n2z；Wherein, n1z> n2z,
And/or n1x< n2x；
Refractive index of the display module 100 in three-dimensional system of coordinate is n0x、n0y、n0z；Display module 100 is in three-dimensional system of coordinate
Interior refractive index meets n0x> n0z> n0y。
Specifically, referring to Figure 1 and Fig. 2, the application introduce viewing angle compensating layers 40 in display module 100, pass through view
Phase difference difference caused by introducing of the angle compensation layer 40 to make up rotatory polarization piece 50 under different perspectives.In the embodiment,
N1 represents the refractive index of viewing angle compensating layers 40, and n2 represents the refractive index of phase difference film 52 in rotatory polarization piece 50, and n0 represents display mould
The refractive index of group 100, after introducing subscript, by taking viewing angle compensating layers 40 as an example, n1xViewing angle compensating layers 40 are represented in three-dimensional system of coordinate
The refractive index in the middle direction x, n1yViewing angle compensating layers 40 are represented in the refractive index in the direction y, n1zViewing angle compensating layers 40 are represented in the direction z
Refractive index, the phase difference film 52 of rotatory polarization piece 50 and the refractive index of display module 100 are similar, no longer solve one by one herein
It releases.It elaborates below in conjunction with Fig. 3-Fig. 5 viewing angle compensation effect played viewing angle compensating layers 40, wherein Fig. 3 is shown
Refractive index of the phase difference film 52 of rotatory polarization piece 50 provided by the embodiment of the present application in three-dimensional system of coordinate shows figure, Fig. 4 institute
It is shown as refractive index performance figure of the viewing angle compensating layers 40 provided by the embodiment of the present application in three-dimensional system of coordinate, Fig. 5 show this
Apply for that refractive index of the display module 100 provided by embodiment in three-dimensional system of coordinate shows figure, from figure 3, it can be seen that rotatory polarization
Refractive index of the phase difference film 52 of piece 50 in three-dimensional system of coordinate meets n2x> n2y≥n2z, it is whole that flat plate-like is presented, it leads in this way
Cause different perspectives bring phase difference different larger；As can be seen from Figure 4, refractive index of the viewing angle compensating layers 40 in three-dimensional system of coordinate with
The refractive index of phase difference film 52 is compared, n1z> n2z, and/or, n1x< n2x, the viewing angle compensating layers 40 the direction z refractive index compared with
Greatly, and be greater than rotatory polarization piece 50 phase difference film 52 the direction z refractive index, alternatively, refraction of the viewing angle compensating layers 40 in the direction x
Rate is smaller, and is less than refractive index of the phase difference film 52 in the direction x of rotatory polarization piece 50, and light is passing sequentially through viewing angle compensating layers 40
After the refraction action of the phase difference film 52 of rotatory polarization piece 50, viewing angle compensating layers 40 are to the phase difference film 52 of rotatory polarization piece 50 in z
The refractive index in direction and/or the direction x compensates, so that refractive index of the entire display module 100 in three-dimensional system of coordinate meets
n0x> n0z> n0y, referring to Fig. 5, integrally seem to thus greatly reduce display mould closer to spherical shape in three-dimensional system of coordinate
Phase difference difference of the group 100 under different perspectives, is conducive to reduce the reflection color difference under big visual angle, so that the black state under wide viewing angle
It is more black, to be conducive to be promoted the viewing angle characteristic of display module 100, promote the visual experience effect of user.
It should be noted that referring to Figure 1, organic light-emitting structure 20 provided by the embodiment of the present application may include successively setting
Anode layer 21, luminous material layer 22 and the cathode layer 23 set, array substrate 10 include thin film transistor (TFT) 11, anode layer 21 and film
The drain electrode of transistor 11 is electrically connected.After thin film transistor (TFT) 11 is connected, outside under alive driving, hole and electronics are respectively from sun
Pole layer 21 and cathode layer 23 are injected into luminous material layer 22, and hole and electronics meet in luminous material layer 22, are compound, release
Then energy out transfers energy to the molecule of organic luminescent substance in luminescent material, makes it from ground state transition to excitation state.Swash
Hair state is very unstable, and excited molecule returns to ground state from excitation state, and radiation transistion generates luminescence phenomenon, is based on this luminescence phenomenon, can
The display of picture is realized by Organic Light Emitting Diode.In addition, side of the organic light-emitting structure 20 far from array substrate 10 also
Be provided with thin-film encapsulation layer 60, organic light-emitting structure 20 be packaged using thin-film encapsulation layer 60, prevent extraneous moisture and
Oxygen, which enters in organic light-emitting structure 20, impacts the performance of organic light-emitting structure 20.
Optionally, in display module 100 provided by the embodiment of the present application, viewing angle compensating layers 40 are positivity liquid crystal layer, just
Refractive index of the property liquid crystal layer in three-dimensional system of coordinate meets n1z> n1x=n1y。
Specifically, in display module 100 provided by the embodiment of the present application, positivity liquid crystal layer can be used as viewing angle compensation
Layer 40, light orientation can be used in positivity liquid crystal layer and cured mode is formed, the refractive index of the positivity liquid crystal in three-dimensional system of coordinate
Meet n1z> n1x=n1y, see, for example, Fig. 4, due to refraction of the phase difference film 52 in three-dimensional system of coordinate of rotatory polarization piece 50
Rate meets n2x> n2y≥n2z, the refractive index in the direction z is the smallest, so that being rendered as in three-dimensional system of coordinate such as Fig. 3 institute
Show flat plate-like, and introduce positivity liquid crystal layer formation viewing angle compensating layers 40 after, due to positivity liquid crystal layer the direction z refractive index most
Greatly, the refractive index in the direction x and the direction y is smaller, and such light is equivalent to and cuts after through viewing angle compensating layers 40 and rotatory polarization piece 50
The phase difference film 52 of weak rotatory polarization piece 50 that is, makes display module 100 whole in three-dimensional coordinate in the refractive index in the direction z
Refractive index performance in system is more nearly spheroidal, referring to Fig. 5, so advantageously reduces display module 100 under different perspectives
Phase difference difference, be conducive to reduce the reflection color difference under big visual angle, so that the black state under wide viewing angle is more black, to be conducive to mention
The viewing angle characteristic for rising display module 100, promotes the visual experience effect of user.
In display module 100 provided by the embodiment of the present application, viewing angle compensating layers 40 are optional in addition to using positivity liquid crystal layer
Ground, viewing angle compensating layers 40 are negative liquid crystal layer, and refractive index of the negative liquid crystal layer in three-dimensional system of coordinate meets n1z≥n1x> n1y。
Specifically, in display module 100 provided by the embodiment of the present application, negative liquid crystal layer can be used as viewing angle compensation
Layer 40, light orientation can be used in negative liquid crystal layer and cured mode is formed, refractive index of the negative liquid crystal in three-dimensional system of coordinate
Meet n1z≥n1x> n1y, since refractive index of the phase difference film 52 in three-dimensional system of coordinate of rotatory polarization piece 50 meets n2x> n2y
≥n2z, the refractive index in the direction z is the smallest, so that being rendered as flat plate-like as shown in Figure 3 in three-dimensional system of coordinate, and is drawn
After the viewing angle compensating layers 40 for entering negative liquid crystal layer formation, the refractive index due to negative liquid crystal layer in the direction z is maximum, the folding in the direction y
Rate minimum is penetrated, such light is equivalent to the position for weakening rotatory polarization piece 50 after through viewing angle compensating layers 40 and rotatory polarization piece 50
Phase difference film 52 that is, makes the whole refractive index performance in three-dimensional system of coordinate of display module 100 more in the refractive index in the direction z
The nearly spheroidal of adjunction is so equally beneficial for reducing phase difference difference of the display module 100 under different perspectives, have referring to Fig. 5
Conducive to the reflection color difference reduced under big visual angle, so that the black state under wide viewing angle is more black, to be conducive to promote display module 100
Viewing angle characteristic promotes the visual experience effect of user.
Optionally, viewing angle compensating layers 40 introduced in display module 100 provided by the embodiment of the present application with a thickness of
D1,0 μm of D1≤20 μm <.Specifically, the embodiment of the present application by the thickness of viewing angle compensating layers 40 be set as 20 μm and it is following when, one
Aspect, the thickness is smaller, will not impact to the whole thickness of display module 100, can will reduce different perspectives
The slimming demand of display module 100 is also helped while lower phase difference difference；On the other hand, by the thickness of viewing angle compensating layers 40
When degree is set as 20 μm or less, also helps and avoid reflection colour cast not black enough, so that the black state under wide viewing angle is more black.
Optionally, Fig. 2 is referred to, viewing angle compensating layers 40 are located at cover-plate glass 30 close to the side of array substrate 10, alternatively,
Fig. 6 is referred to, viewing angle compensating layers 40 are located at side of the cover-plate glass 30 far from array substrate 10, and Fig. 6 is shown provided by Fig. 1
Another AA ' the sectional view of display module 100.
Specifically, Fig. 2 and Fig. 6 respectively illustrates the two kinds of structures introduced after viewing angle compensating layers 40 in display module 100
Scheme, in embodiment illustrated in fig. 2, viewing angle compensating layers 40 are implemented shown in Fig. 6 between cover-plate glass 30 and organic light-emitting structure 20
In example, viewing angle compensating layers 40 are between cover-plate glass 30 and rotatory polarization piece 50.In both structures, organic light-emitting structure 20 is sent out
Light out is successively after the refraction action of the phase difference film 52 of viewing angle compensating layers 40 and rotatory polarization piece 50, so that display module
100 refractive index in three-dimensional system of coordinate shows as form as shown in Figure 5, to advantageously reduce display module 100 not
With the phase difference difference under visual angle, be conducive to reduce the reflection color difference under big visual angle, so that the black state under wide viewing angle is more black.
Fig. 2 and display module 100 shown in embodiment illustrated in fig. 6 do not include touch function layer 70, next to including touching
The composition for controlling the display module 100 of functional layer 70 is illustrated.
Optionally, Fig. 7 show another AA ' sectional view of display module 100 provided by Fig. 1, and Fig. 8 show Fig. 1
Another AA ' the sectional view of provided display module 100, Fig. 9 show the another kind of display module 100 provided by Fig. 1
AA ' sectional view, display module 100 provided by the embodiment of the present application further includes touch function layer 70, and touch function layer 70 is located at
Side of the cover-plate glass 30 far from array substrate 10；
Referring to Fig. 7, viewing angle compensating layers 40 are between cover-plate glass 30 and touch function layer 70, or referring to Fig. 8, visual angle
Compensation layer 40 is located at side of the touch function layer 70 far from array substrate 10, or referring to Fig. 9, viewing angle compensating layers 40 are located at cover board
Glass 30 is close to the side of array substrate 10.
Specifically, Fig. 7-Fig. 9 show have touch function display module 100 introduce viewing angle compensating layers 40 after it is several
Figure is constituted, touch function layer 70 is arranged between cover-plate glass 30 and rotatory polarization piece 50, and viewing angle compensating layers 40 can be located at organic hair
Any film layer between photo structure 20 and rotatory polarization piece 50, e.g. Fig. 7-several situations illustrated in fig. 9.Such structure is shown
Show mould group 100, be both able to achieve touch function, advantageously reduces phase difference difference of the display module 100 under different perspectives, favorably
In reducing the reflection color difference under big visual angle, so that the black state under wide viewing angle is more black.
The composition and working principle of rotatory polarization piece 50 are illustrated below.
Optionally, Figure 10 show a kind of structure of rotatory polarization piece 50 in display module 100 provided by the embodiment of the present application
At schematic diagram, referring to Figure 10, rotatory polarization piece 50 further includes light polarizing film 51, light polarizing film 51 and position phase in addition to including phase difference film 52
Poor film 52 is stacked along the direction perpendicular to array substrate 10, and light polarizing film 51 is arranged in phase difference film 52 far from array substrate
10 side, wherein light polarizing film 51 and phase difference film 52 are isolated by glue-line 53.Extraneous natural light becomes after light polarizing film 51
Line polarisation, effect of the line polarisation Jing Guo phase difference film 52 form the first rotatory polarization, and the first rotatory polarization becomes the second circle after reflection
Polarisation, the second rotatory polarization become the line polarisation perpendicular to light polarizing film 51 using phase difference film 52, thus absorbed by light polarizing film 51,
It cannot be emitted, so that the external environmental light into rotatory polarization piece 50 be effectively prevent to reflect away, the presence of reflected light be avoided to cause
Puzzlement in user's use is conducive to the visual experience effect for promoting user.
Optionally, the phase difference film 52 in embodiment illustrated in fig. 10 includes the phase difference film of λ/4 521, which can
It is formed using inverse wave length dispersion.Figure 11 show rotatory polarization piece 50 in display module 100 provided by the embodiment of the present application
Working principle diagram when including λ/4 phase difference film 521, incorporated by reference to Figure 10 and Figure 11, external environment light is by light polarizing film 51
Become line polarisation A after effect, the polarization direction of line polarisation A is parallel with light polarizing film 51；Line polarisation A after the phase difference film of λ/4 521,
Become rotatory polarization B (being assumed to be left-handed)；Left-handed rotatory polarization A is acted on by reflecting layer (i.e. the anode layer 21 of organic light-emitting structure 20)
Afterwards, its direction known to fresnel formula will change 180 °, and phase delay π becomes rotatory polarization C；Rotatory polarization C passes through λ/4 phase
After poor film 521, become line polarisation D, the polarization direction of line polarisation D is vertical with line polarisation A, is absorbed by light polarizing film 51, cannot go out
It penetrates.Therefore, comprising λ/the rotatory polarization pieces 50 of 4 phase difference films 521 is capable of the external environmental light of effectively entry deterrence display module 100
There is a phenomenon where reflecting, reflected light is avoided to impact the normal display of display module 100, so as to avoid existing to user
Using causing to perplex when display module 100, be conducive to the visual experience effect for promoting user.
Optionally, Figure 12 show the another kind of rotatory polarization piece 50 in display module 100 provided by the embodiment of the present application
Schematic diagram is constituted, phase difference film 52 includes the phase difference film of λ/4 521 and the phase difference film of λ/2 522 being isolated by glue-line 53, λ/2 phase
The phase difference film of λ/4 521 is arranged in close to the side of light polarizing film 51 in poor film 522.It includes λ/2 phase that Figure 13, which show rotatory polarization piece 50,
Working principle diagram when poor film 522 and λ/4 phase difference film 521, incorporated by reference to Figure 12 and Figure 13, external environment light passes through light polarizing film
Become line polarisation A after 51 effect, the polarization direction of line polarisation A is parallel with light polarizing film 51；Line polarisation A first pass around first pass through λ/
2 phase difference films 522, become line polarisation E, and line polarisation E has deflected an angle [alpha] relative to line polarisation A (wherein α is acute angle)；
Line polarisation E passes through the phase difference film of λ/4 521, becomes rotatory polarization F (being assumed to be left-handed)；Left-handed rotatory polarization F (has by reflecting layer
The anode layer 21 of machine light emitting structure 20) after effect, 180 ° will be changed by its direction known to fresnel formula, phase delay π becomes
Rotatory polarization G；Rotatory polarization G becomes line polarisation H after the phase difference film of λ/4 521, and the polarization direction of line polarisation H and line polarisation E hang down
Directly；Line polarisation H becomes line polarisation I, the polarization direction of line polarisation I is vertical with line polarisation A, quilt after the phase difference film of λ/2 522
Light polarizing film 51 absorbs, and cannot be emitted.Therefore, comprising λ/the rotatory polarization piece 50 of 2 phase difference films 522 and the phase difference film of λ/4 521 is same
It is capable of the external environmental light of effective entry deterrence display module 100 there is a phenomenon where reflecting, avoids reflected light to display module 100
Normal display impact, so as to avoid causing to perplex when using display module 100 to user, therefore equally advantageous
In the visual experience effect for promoting user.
Optionally, in display module 100 provided by the embodiment of the present application, rotatory polarization piece 50 with a thickness of D2,50 μm≤
D2≤180μm。
In the prior art, the thickness of rotatory polarization piece 50 would be normally located at 140 μm -200 μm, and circle in the embodiment of the present application
Polaroid 50 with a thickness of 50 μm≤D2≤180 μm, its thickness is reduced compared to existing technologies, to be conducive to reduce aobvious
The integral thickness for showing mould group 100 is advantageously implemented the slimming demand of display module.
Based on the same inventive concept, the application also provides a kind of display device, and Figure 14 show the embodiment of the present application and mentioned
A kind of structural schematic diagram of the display device of confession, referring to Figure 14, the display device 200 in the application further includes display module 100,
The display module 100 is the display module 100 in the above embodiments of the present application.Display device 200 provided herein can be with
Are as follows: mobile phone, tablet computer, television set, display, laptop, Digital Frame, navigator etc. are any with real function
Products or components.The embodiment of display device 200 can be found in the embodiment of above-mentioned display module 100 in the application, repeat place
Details are not described herein again.
Through the foregoing embodiment it is found that display module provided by the invention and display device, at least realizing following has
Beneficial effect:
In display module and display device provided herein, introduced between organic light-emitting structure and rotatory polarization piece
Viewing angle compensating layers, since refractive index of the phase difference film in three-dimensional system of coordinate of rotatory polarization piece meets n2x> n2y≥n2z, and draw
N1 in the viewing angle compensating layers enteredz> n2z, and/or, n1x< n2x, this can effectively make up in rotatory polarization piece due to n2zIt is smaller or
n2xCaused by larger under different perspectives the different larger phenomenon of bring phase difference so that display module and display device exist
Refractive index in three-dimensional system of coordinate meets n0x> n0z> n0y, therefore be conducive to reduce display module and display device at big visual angle
Under phase difference it is different, reduce the reflection color difference under big visual angle, so that the visual angle for being conducive to be promoted display module and display device is special
Property, promote the visual experience effect of user.
Although some specific embodiments of the invention are described in detail by example, the skill of this field
Art personnel it should be understood that example above merely to being illustrated, the range being not intended to be limiting of the invention.The skill of this field
Art personnel are it should be understood that can without departing from the scope and spirit of the present invention modify to above embodiments.This hair
Bright range is defined by the following claims.
Claims (11)
1. a kind of display module characterized by comprising array substrate, along the direction perpendicular to plane where array substrate according to
The secondary organic light-emitting structure being arranged in the array substrate, cover-plate glass and rotatory polarization piece, the rotatory polarization piece include position phase
Poor film；
It further include viewing angle compensating layers, the viewing angle compensating layers are between the organic light-emitting structure and the rotatory polarization piece；
Refractive index of the viewing angle compensating layers in three-dimensional system of coordinate is respectively n1x、n1y、n1z, institute's rheme of the rotatory polarization piece
Refractive index of the phase difference film in three-dimensional system of coordinate is respectively n2x、n2y、n2z, and meet n2x> n2y≥n2z；Wherein, n1z> n2z,
And/or n1x< n2x；
Refractive index of the display module in three-dimensional system of coordinate is n0x、n0y、n0z；The display module is in three-dimensional system of coordinate
Refractive index meet n0x> n0z> n0y。
2. display module according to claim 1, which is characterized in that the viewing angle compensating layers are positivity liquid crystal layer, described
Refractive index of the positivity liquid crystal layer in three-dimensional system of coordinate meets n1z> n1x=n1y。
3. display module according to claim 1, which is characterized in that the viewing angle compensating layers are negative liquid crystal layer, described
Refractive index of the negative liquid crystal layer in three-dimensional system of coordinate meets n1z≥n1x> n1y。
4. display module according to claim 1, which is characterized in that the viewing angle compensating layers with a thickness of D1,0 μm of < D1
≤20μm。
5. display module according to claim 1, which is characterized in that
The viewing angle compensating layers are located at the cover-plate glass close to the side of the array substrate, alternatively, the viewing angle compensating layers
Side positioned at the cover-plate glass far from the array substrate.
6. display module according to claim 1, which is characterized in that it further include touch function layer, the touch function layer
Side positioned at the cover-plate glass far from the array substrate；
The viewing angle compensating layers are between the cover-plate glass and the touch function layer, or are located at the touch function layer
Side far from the array substrate, or positioned at the cover-plate glass close to the side of the array substrate.
7. display module according to claim 1, which is characterized in that the rotatory polarization piece further includes light polarizing film, described inclined
Light film and the phase difference film are stacked along the direction perpendicular to the underlay substrate, and the light polarizing film film is arranged described
Side of the phase difference film far from the array substrate.
8. display module according to claim 1, which is characterized in that the phase difference film includes the phase difference film of λ/4.
9. display module according to claim 1, which is characterized in that the phase difference film includes λ/4 being isolated by glue-line
Phase difference film and the phase difference film of λ/2.
10. display module according to claim 1, which is characterized in that the rotatory polarization piece with a thickness of D2,50 μm≤D2
≤180μm。
11. a kind of display device characterized by comprising any display module of claims 1 to 10.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112068357A (en) * | 2020-09-25 | 2020-12-11 | 厦门天马微电子有限公司 | Display panel and display device |
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|---|---|---|---|---|
| CN1591101A (en) * | 2003-08-13 | 2005-03-09 | 株式会社日立显示器 | Light emitting display |
| CN1826552A (en) * | 2004-09-16 | 2006-08-30 | 东芝松下显示技术有限公司 | Liquid crystal display element |
| US20060203162A1 (en) * | 2005-03-08 | 2006-09-14 | Hideki Ito | Liquid crystal display device |
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2018
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1591101A (en) * | 2003-08-13 | 2005-03-09 | 株式会社日立显示器 | Light emitting display |
| CN1826552A (en) * | 2004-09-16 | 2006-08-30 | 东芝松下显示技术有限公司 | Liquid crystal display element |
| US20060203162A1 (en) * | 2005-03-08 | 2006-09-14 | Hideki Ito | Liquid crystal display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112068357A (en) * | 2020-09-25 | 2020-12-11 | 厦门天马微电子有限公司 | Display panel and display device |
| CN112068357B (en) * | 2020-09-25 | 2022-06-03 | 厦门天马微电子有限公司 | Display panel and display device |
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Effective date of registration: 20211018 Address after: No.8, liufangyuanheng Road, Donghu New Technology Development Zone, Wuhan City, Hubei Province, 430074 Patentee after: WUHAN TIANMA MICRO-ELECTRONICS Co.,Ltd. Patentee after: Wuhan Tianma Microelectronics Co.,Ltd. Shanghai Branch Address before: Room 509, building 1, No. 6111, Longdong Avenue, Pudong New Area, Shanghai, 201201 Patentee before: SHANGHAI TIANMA AM-OLED Co.,Ltd. |