CN206179867U - Display panel and display apparatus - Google Patents
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- CN206179867U CN206179867U CN201621092176.5U CN201621092176U CN206179867U CN 206179867 U CN206179867 U CN 206179867U CN 201621092176 U CN201621092176 U CN 201621092176U CN 206179867 U CN206179867 U CN 206179867U
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Abstract
The utility model provides a display panel and display apparatus, display panel includes: the base plate, the reflection stratum is located one side of base plate, show the layer, be located one side that the reflection stratum deviates from the base plate, and have a plurality of pixel regions of the light that sends different colours respectively at least, half passes through half anti - layer, is located to show that the layer deviates from the one side in reflection stratum, filter coating group is located one side of partly passing through half anti - layer and deviating from the demonstration layer. The utility model provides a be provided with filter coating group and pass through half technical scheme who anti -s the layer with half in display panel, eliminated inclined to one side vibration -damping sheet and to the influence of warp resistance performance, improved holistic flex stiffiness of display panel and luminous efficiency, influence through incident light in each filter coating group elimination environment different with each pixel region colour to passing through half by half and anti -ing layer and reflection stratum and constituteed the optical microcavity, the interference through the optical microcavity disappears mutually, eliminates incident light in the environment the same with each pixel region colour, thus the influence of reduction environment light to the display panel display effect.
Description
Technical field
This utility model is related to incident illumination in display technology field, more particularly to a kind of reduction environment to be affected, improves anti-crawl agentdefiection
The display floater and display device of song and light extraction efficiency.
Background technology
Flexible display apparatus are made up of soft material, the flexible device of deformable.It is of the prior art flexible aobvious
Showing device typically adopts OLED (Organic Light-Emitting Diode, Organic Light Emitting Diode) technology, this technology
With the advantage such as low-power consumption, small volume, light, display mode be various, therefore it is widely used in various electronic products.
Display floater of the prior art can apply a reflective metals to improve light extraction efficiency under OLED luminescent devices
Layer, makes the light that display layer sends send towards one side.But reflective metal layer simultaneously also can incident illumination in reflection environment, affect aobvious
Show the display effect of panel.Common solution is inclined in top one layer of λ/4 wave plate of applying and a layer line of display floater
Shake piece, i.e., can efficiently reduce incident illumination in the environment of reflection.
It is illustrated in figure 1 the schematic diagram of a typical display floater in prior art.Wherein display floater is included in z in figure
Direction substrate 1 ' from bottom to up, display layer 2 ', encapsulated layer 3 ', λ/4 wave plate 4 ' and linear polarizer 5 '.
When display floater is OLED display panel, multiple pictures being made up of OLED luminescent devices are provided with display layer 2 '
Plain area, each pixel region can send identical color, it is also possible to send different colors.When each pixel region sends identical
During color, need the light emission side in each luminescent device that filter coating group is set, the emergent light of display layer 2 ' is filtered, use
Penetrate light and different colors are presented, realize color display technology；And working as each pixel region itself can send required colour
Light time, then filter coating group need not be again set the emergent light of display layer 2 ' is filtered.
Using the display floater of this kind of structure, have as a drawback that：
(1) being arranged at the linear polarizer 5 ' of the light emission side of display floater can absorb 50% emergent light of display layer, greatly
The light extraction efficiency of display floater is reduced greatly；
(2) linear polarizer 5 ' is multi-layer film structure, warp resistance poor performance, it is impossible to meet the bending of flexible display apparatus
Deformation Demands, therefore be difficult to apply in folding flexible display apparatus.
Utility model content
For the problems of the prior art, the purpose of this utility model is to provide a kind of display floater, eliminates display
Polaroid in panel, reduces the impact of incident illumination in environment while light extraction efficiency is improved, and it is whole to improve display floater
The flex stiffiness of body.
This utility model embodiment provides a kind of display floater, including：
Substrate；
Reflecting layer, positioned at the side of the substrate；
Display layer, positioned at the reflecting layer away from the side of substrate, and at least has the light for sending different colours respectively
Multiple pixel regions；
Transflective layer, positioned at the display layer side in the reflecting layer is deviated from；
Filter coating group, positioned at the transflective layer away from the side of the display layer.
Preferably, between the reflecting layer and transflective layer the height at corresponding each pixel region of cavity meets：
Reflected light of one incident illumination at transflective layer, the optical path difference with reflected light of the same incident illumination at reflecting layer
It is worth for n (λ/2), wherein, λ is the wavelength value of the incident illumination of the color of the correspondence pixel region, and n is the odd number more than or equal to 1.
Preferably, the peak wavelength for projecting at the position of each pixel region of the filter coating group correspondence, is the correspondence picture
Peak wavelength ± the 20nm of the emergent light in plain area.
Preferably, the plurality of pixel region sends the light of three kinds of colors：Red, green and blueness.
Preferably, also including thin-film encapsulation layer, between the display layer and the transflective layer.
Preferably, the substrate is array base palte.
Preferably, the transflective layer is silver layer or aluminium lamination.
Preferably, also including black matrix, the black matrix is located at side of the display layer away from the reflecting layer.
Preferably, the thickness of the transflective layer is less than 100nm.
This utility model embodiment also provides a kind of display device, including above-mentioned display floater.
Display floater provided by the utility model and display device have following advantages：
This utility model provides a kind of technical scheme that filter coating group and transflective layer are provided with display floater,
The polaroid in display floater is eliminated, the impact that polaroid resists flexural property is eliminated, display floater entirety is improve
Flex stiffiness；Avoid emergent light from being absorbed by polaroid simultaneously, improve the light extraction efficiency of display floater；By each filter coating
Group eliminates the impact of incident illumination in the environment different from each pixel region color, and constitutes light by transflective layer and reflecting layer
Microcavity is learned, by the interference cancellation of optical microcavity, is eliminated and incident illumination in each pixel region color identical environment, so as to reduce
Impact of the ambient light to display floater display effect.
Description of the drawings
By reading the detailed description made to non-limiting example with reference to the following drawings, other spies of the present utility model
Levy, objects and advantages will become more apparent upon.
Fig. 1 is the schematic diagram of a typical display floater in prior art；
Fig. 2 is the schematic diagram of the display floater of the embodiment of this utility model one；
Fig. 3 be the embodiment of this utility model one display floater in display layer emergent light light path schematic diagram；
Fig. 4 be the embodiment of this utility model one display floater in a part of absorbed light path schematic diagram of incident illumination；
Fig. 5 be the embodiment of this utility model one display floater in incident illumination another part interfere cancellation light path illustrate
Figure；
Fig. 6 is the schematic diagram of the display floater of another embodiment of this utility model；
Fig. 7 is the schematic diagram of the display floater of this utility model another embodiment.
Specific embodiment
Example embodiment is described more fully with referring now to accompanying drawing.However, example embodiment can be with various shapes
Formula is implemented, and is not understood as limited to embodiment set forth herein；Conversely, thesing embodiments are provided so that this practicality is new
The design of example embodiment fully and completely, and will comprehensively be conveyed to those skilled in the art by type.It is identical in figure
Reference represent same or similar structure, thus repetition thereof will be omitted.
According to the defect of the prior art of foregoing description, in order to preferably meet the demand of flexible display apparatus, improve
The flex stiffiness of display device, needs to remove polaroid.Because polaroid can efficiently reduce reflected light, therefore, removing
After polaroid, in addition it is also necessary to consider the elimination affected on incident illumination in environment.For this purpose, the utility model proposes a kind of new shows
Show the technical scheme of panel, not remove only polaroid and λ/4 wave plate, while incident illumination can be reduced in environment to display effect
Impact.
As shown in Fig. 2 the schematic diagram of the display floater for the embodiment of this utility model one, including the z directions in figure
From bottom to up：Substrate 1, reflecting layer 4, display layer 2, transflective layer 5 and filter coating group 6, display layer 2 includes multiple sending
The pixel region of the light of different colours, filter coating group 6 includes and the one-to-one multiple filter coatings of pixel region, transflective layer 5
Optical microcavity is formed and filter coating group 6 between.
In this embodiment, display layer is to include red pixel area 21, green picture in RGB display layers, i.e. display layer respectively
Plain area 22 and blue pixel area 23, accordingly, filter coating group 6 includes red filter film 61, green filter film 62 and blue filter
Light film 63.Because in this utility model, pixel region itself can send the multiple color of needs, therefore each filter coating is not
The emergent light of pixel region is filtered, and is aimed at incident illumination in environment and is filtered.
Therefore, the technical solution of the utility model is to the ultimate principle that incident illumination in environment is eliminated the effects of the act：Using each
Incident illumination is filtered in the filter coating pair environment different from corresponding pixel region color, using optical microcavity pair and corresponding picture
Incident illumination carries out interference cancellation in plain area's color identical environment.
Because each filter coating is that incident illumination different from pixel region color in environment is filtered, therefore, each
Filter coating corresponds to the outgoing peak wavelength ten in the peak wavelength needs and respective pixel area projected at the position of each pixel region
Tap is near.Peak wavelength refers to spectral luminescence intensity or the wavelength corresponding to radiant power maximum.Specifically, each optical filtering
Film corresponds to the peak wavelength projected at the position of each pixel region, preferably corresponds to the peak wavelength of the emergent light of the pixel region
±20nm.Therefore, it can incide the incident illumination inside display floater by filter coating, refer to incident illumination and show in directive
During panel, the part that peak wavelength is fallen within the scope of the peak wavelength ± 20nm of the emergent light of the correspondence pixel region, and
The other parts of incident illumination will not pass through filter coating and be filtered out.Herein the interval of ± 20nm is a kind of preferred embodiment party
Formula, in actual applications, it is also possible to be adjusted as needed, reaches the preferable filter effect of the incident illumination to corresponding color i.e.
Can.
Due to optical microcavity can be pair with respective pixel area color identical environment in incident illumination carry out elimination of interference, light
Learn microcavity and preferably meet following demand：
Reflected light of one incident illumination at transflective layer 5, the light path with reflected light of the same incident illumination at reflecting layer 4
Difference is n (λ/2), wherein, λ is the wavelength value of the incident illumination of the color of the correspondence pixel region, and n is strange more than or equal to 1
Number, i.e. optical path difference are the odd-multiple of half-wavelength.
Below, with reference to Fig. 3~5, describe in detail as a example by red pixel area：
As shown in figure 3, for the light path schematic diagram of display layer emergent light in red pixel area.Under Tu Zhong red pixels area 21
Side is provided with reflecting layer 4, and top is provided with transflective layer 5, and the top of transflective layer 5 is provided with red filter film 61.Figure
Middle A is the emergent light at the red pixel area 21 of display layer, red due to being provided that red filter film 61 at red pixel area 21
The peak wavelength of color filter coating 61, the peak wavelength ± 20nm of preferably red emergent light is (as described above, the scope can basis
It is actually needed and is adjusted), red emergent light will not be had an impact, would not also reduce the light extraction efficiency of red emergent light.Phase
Can be to the situation of outgoing light absorbs than the polaroid in prior art, this utility model improves the light extraction efficiency of display layer.
During in the environment incident illumination is eliminated, incident illumination in environment is divided into into two parts, a part is and red picture
Incident illumination in the different environment of the color of plain area 21, i.e., non-Red incident light, another part is identical with the color of red pixel area 21
Incident illumination, i.e. Red incident light, the elimination to incident illumination mainly adopts the following two kinds mode：
(1) as shown in figure 4, being a part of absorbed light path schematic diagram of incident illumination in display floater of the present utility model.
Herein a part for incident illumination is non-Red incident light B, can be directed to due to being provided with the position of red pixel area 21
The red filter film 61 that non-red light is filtered, therefore, for non-Red incident light B in environment, red filter film 61 is direct
Filtered, also would not be reflected by reflecting layer 4 through display layer 2, also cannot just be formed reflected light.That is this utility model
The impact of incident illuminations different from respective pixel area color in environment is eliminated by filter coating group 6.
(2) as shown in figure 5, incident illumination another part interferes the light of cancellation in the display floater of the embodiment of this utility model one
Road schematic diagram.Herein another part of incident illumination is red incident illumination C, due to above and below red pixel area 21
Reflecting layer 4 and transflective layer 5 are provided with, optical microcavity, Red incident light C are formed between reflecting layer 4 and transflective layer 5
Two halves are further divided in transflective layer 5, half is reflected at transflective layer 5 and formed reflected light C1, another
Half is reflected at reflecting layer 4 and is formed reflected light C2.Due to being defined above：Incident illumination is anti-at transflective layer 5
Penetrate light, with the retardation values of reflected light of the same incident illumination at reflecting layer 4 for λ/2 odd-multiple, wherein, λ be herein i.e.
For the wavelength value of Red incident light, then the retardation values of reflected light C1 and reflected light C2 are the odd-multiple of λ/2, therefore are just interfered
Cancellation, and eliminate the impact of the Red incident light C in environment.Cancellation is interfered to refer to two row frequency identical ripple phases herein
Meet, when wave path-difference is the odd-multiple of half-wavelength, the equal then cancellation of two train wave amplitudes.I.e. this utility model is eliminated by optical microcavity
Impact in environment with respective pixel area color identical incident illumination.
Therefore, at the pixel region of different colours, the thickness of optical microcavity is different, and corresponding to the pixel region color
Lambda1-wavelength positive correlation.And the adjustment of the thickness for optical microcavity, the thickness of adjustment transflective layer can be passed through, adjusted
The various ways such as thickness of other functions layer, belong in thickness, the thickness of adjustment encapsulated layer, the adjustment optical microcavity in whole reflecting layer
Within protection domain of the present utility model.
The transflective layer 5 adopted in this utility model can be very thin silver layer or aluminium lamination, and the thickness of transflective layer 5
Degree is preferably less than 100nm.It is listed herewith simply it is a kind of preferred embodiment, in actual applications, can be according to reality
The material and thickness for selecting transflective layer 5 is needed, and is not limited to content listed herewith, belong to protection of the present utility model
Within the scope of.
The reflecting layer 4 adopted in this utility model can be reflective metal layer, and thickness is traditionally arranged to be 100nm~300nm.
Reflecting layer 4 can also select other materials and thickness, and be not limited to mode listed herewith.In addition, substrate of the present utility model 1
Preferably array base palte.
Described above is the light path of the emergent light at red pixel area and incident illumination.The pixel region of other colors and redness
Principle at pixel region is identical.
For example, for green pixel area 22, the emergent light in green pixel area 22 will be penetrated directly through green filter film 62
Go out, the light extraction efficiency without affecting green pixel area 22；The peak wavelength of green filter film 62, preferably green emergent light
Peak wavelength ± 20nm, thus the non-green incident illumination at green pixel area 22 will be filtered without anti-by green filter film 62
Penetrate layer 4 to reflect；Reflected light of the green incident illumination at transflective layer 5, with reflected light of the same incident illumination at reflecting layer 4
Retardation values are the odd-multiple of λ/2, and herein λ is the wavelength of green incident illumination, i.e., green incident illumination is by transflective layer 5 and instead
Penetrate the optical microcavity interference cancellation of the composition of layer 4.
For blue pixel area 23, the emergent light in blue pixel area 23 will be projected directly through blue filter film 63, and
The light extraction efficiency in blue pixel area 23 is not interfered with；The peak wavelength of blue filter film 62, the peak value of preferably blue emergent light
Wavelength ± 20nm, the non-blue incident illumination at blue pixel area 23 will be filtered without anti-by reflecting layer 4 by blue filter film 63
Penetrate；Reflected light of the blue incident illumination at transflective layer 5, the optical path difference with reflected light of the same incident illumination at reflecting layer 4
It is worth the odd-multiple for λ/2, herein λ is the wavelength of blue incident illumination, i.e., blue incident illumination is by transflective layer 5 and reflecting layer 4
The optical microcavity interference cancellation of composition.
Further, as shown in Figure 2, in this embodiment, the display floater preferably also includes light shield layer, and light shield layer is excellent
Elect black matrix 7 as.Black matrix 7 is coordinated with filter coating group 6, and the non-display area in display layer is blocked, and prevents colour mixture
And increase the purity of color.
Further, as shown in Fig. 2 in this embodiment, between display layer 2 and transflective layer 5, preferably also set up
There is encapsulated layer 3, encapsulated layer 2 is preferably thin-film encapsulation layer, display layer 2 not only can be protected, it may have good bendable
Folding endurance and flex stiffiness, can be perfectly suitable for flexible display apparatus.
As shown in fig. 6, the schematic diagram of the display floater for another embodiment of the present utility model, itself and previous embodiment
Difference, is that display layer 2 includes four kinds of pixel regions：Red pixel area 21, green pixel area 22, blue pixel area 23 and
Four kinds of pixel regions 24, wherein the 4th kind of pixel region 24 can be white pixel area or yellow pixel area, accordingly, filter coating group 6
Including red filter film 61, green filter film 62, blue filter film 63 and the 4th kind of filter coating 64, the 4th kind of filter coating 64 can be with
For white filter coating or Yellow filter film.As shown in fig. 7, the signal of the display floater for another embodiment of the present utility model
Figure, it is different from previous embodiment, is that display layer includes two kinds of pixel regions：Red pixel area 21 and green pixel area 22,
Accordingly, filter coating group 6 includes red filter film 61 and green filter film 62.
In actual applications, display layer of the present utility model can also adopt other kinds of, the number of pixel region therein
Amount and color can be adjusted as needed, belong within protection domain of the present utility model.In addition, as shown in Figure 7,
Black matrix and encapsulated layer can also be not provided with, or encapsulated layer does not adopt thin-film package mode, it is also possible to realize this utility model
Technical scheme, belong within protection domain of the present utility model.
When in display layer using the pixel region of other colors, display floater is to incident illumination in display layer emergent light and environment
Handling principle it is identical with the principle of foregoing description, the thickness of optical microcavity can be according to the corresponding incidence of different pixels area color
The wavelength of light is adjusted, and here is omitted.
This utility model embodiment also provides a kind of display device, and the display device includes above-mentioned display floater.Institute
It can be the wide variety of display device such as computer monitor, mobile phone, panel computer, electron album to state display device.Show dress
The display floater put can need to carry out the bending of different degrees of, different directions according to design, with more preferable flex stiffiness.
Due to adopting OLED technology flexible display apparatus of the prior art, it is possible to achieve the less thickness of display floater more
Degree, portability and pliable folding endurance.Therefore, each pixel region in display layer of the present utility model 2 preferably has different luminous
The Organic Light Emitting Diode of color, is arranged in the top of substrate 1.But this utility model is not limited.
To sum up, the manufacture method of display floater provided by the utility model and display device has following advantages：
This utility model provides a kind of new technical scheme, and filter coating group and semi-transparent semi-reflecting is provided with display floater
Layer, eliminates the polaroid in display floater, eliminates the impact that polaroid resists flexural property, improves display floater entirety
Flex stiffiness；Avoid emergent light from being absorbed by polaroid simultaneously, improve the light extraction efficiency of display floater；By each optical filtering
Film group eliminates the impact of incident illumination in the environment different from each pixel region color, and is constituted by transflective layer and reflecting layer
Optical microcavity, by the interference cancellation of optical microcavity, eliminates and incident illumination in each pixel region color identical environment, so as to subtract
Few impact of the ambient light to display floater display effect.
Above content is to combine specific preferred implementation further detailed description of the utility model, it is impossible to
Identification is of the present utility model to be embodied as being confined to these explanations.For the ordinary skill of this utility model art
For personnel, without departing from the concept of the premise utility, some simple deduction or replace can also be made, all should be regarded
To belong to protection domain of the present utility model.
Claims (10)
1. a kind of display floater, it is characterised in that include：
Substrate；
Reflecting layer, positioned at the side of the substrate；
Display layer, positioned at the reflecting layer away from the side of substrate, and at least has the multiple of the light for sending different colours respectively
Pixel region；
Transflective layer, positioned at the display layer side in the reflecting layer is deviated from；
Filter coating group, positioned at the transflective layer away from the side of the display layer.
2. display floater according to claim 1, it is characterised in that the cavity between the reflecting layer and transflective layer
Height at corresponding each pixel region meets：
Reflected light of one incident illumination at transflective layer, be with the retardation values of reflected light of the same incident illumination at reflecting layer
N (λ/2), wherein, λ is the wavelength value of the incident illumination of the color of the correspondence pixel region, and n is the odd number more than or equal to 1.
3. display floater according to claim 1, it is characterised in that the position of the filter coating group correspondence each pixel region
The peak wavelength of place's projection, is the peak wavelength ± 20nm of the emergent light of the correspondence pixel region.
4. display floater according to claim 1, it is characterised in that the plurality of pixel region sends the light of three kinds of colors：
Red, green and blueness.
5. display floater according to claim 1, it is characterised in that also including thin-film encapsulation layer, positioned at the display layer
And the transflective layer between.
6. display floater according to claim 1, it is characterised in that the substrate is array base palte.
7. display floater according to claim 1, it is characterised in that the transflective layer is silver layer or aluminium lamination.
8. display floater according to claim 1, it is characterised in that also including black matrix, the black matrix is located at described
Side of the display layer away from the reflecting layer.
9. display floater according to claim 1, it is characterised in that the thickness of the transflective layer is less than 100nm.
10. a kind of display device, it is characterised in that including the display floater any one of claim 1 to 9.
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| CN201621092176.5U CN206179867U (en) | 2016-09-29 | 2016-09-29 | Display panel and display apparatus |
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