CN110323354A - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
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- CN110323354A CN110323354A CN201910338909.0A CN201910338909A CN110323354A CN 110323354 A CN110323354 A CN 110323354A CN 201910338909 A CN201910338909 A CN 201910338909A CN 110323354 A CN110323354 A CN 110323354A
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- array substrate
- display panel
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- protrusion
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/84—Passivation; Containers; Encapsulations
- H10K50/844—Encapsulations
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/86—Arrangements for improving contrast, e.g. preventing reflection of ambient light
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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
- H10K59/30—Devices specially adapted for multicolour light emission
- H10K59/38—Devices specially adapted for multicolour light emission comprising colour filters or colour changing media [CCM]
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- Optics & Photonics (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
It includes: the array substrate being stacked, luminescent layer, encapsulated layer and filter layer that the present invention, which provides a kind of display panel and display device, the display panel,；Encapsulated layer and luminescent layer are between filter layer and array substrate, and luminescent layer is arranged close to array substrate；Encapsulated layer includes the multiple middle film layers being stacked；In two neighboring middle film layer, the refractive index of the middle film layer far from array substrate is greater than close to the refractive index of the middle film layer of array substrate.After ambient is injected into display panel, it is reflected on the metal layer of display panel, reflection light is during by encapsulated layer, it can be totally reflected at interface between two adjacent middle film layers, and then reduce the reflection light projected by display panel, improve the contrast of display panel.
Description
Technical field
The present invention relates to display equipment technical field more particularly to a kind of display panel and display devices.
Background technique
With the gradually development of display equipment and technology, Organic Light Emitting Diode (Organic Light-Emitting
Diode, referred to as OLED) display panel is frequently as the display device in electronic equipment.
In the prior art, display panel often includes the luminescent layer and filter layer being stacked, and is provided with filter on filter layer
Optical port is provided with optical filter in optical filtering mouth；The light that luminescent layer issues can be projected through the optical filter in optical filtering mouth, aobvious to realize
Show the display of panel.
However, having metal layer in display panel, ambient can form reflection after injecting display panel on the metal layer
Light, reflection light can be projected by optical filter, and then cause the contrast of display panel lower.
Summary of the invention
In view of this, the embodiment of the present invention provides a kind of display panel and display device, display is injected to solve boundary's light
Reflection light can be formed after panel on the metal layer, reflection light can be projected by optical filter, and then lead to pair of display panel
The technical problem more lower than degree.
The embodiment of the present invention provides a kind of display panel, comprising: the array substrate that is stacked, luminescent layer, encapsulated layer with
And filter layer；
The encapsulated layer and the luminescent layer are between the filter layer and the array substrate, and the luminescent layer leans on
The nearly array substrate setting；
The encapsulated layer includes the multiple middle film layers being stacked；In the two neighboring middle film layer, close to described
The refractive index of the middle film layer of array substrate is greater than the refractive index of the middle film layer far from the array substrate.
Display panel as described above a, it is preferable that middle film layer in the two neighboring middle film layer is
Organic layer, another described middle film layer are inorganic layer.
Display panel as described above, it is preferable that there is protrusion on towards the middle film layer of the array substrate；
Along the direction of the vertical array substrate, the thickness of the protrusion is gradually reduced from centre to edge.
Display panel as described above, it is preferable that the surface of the protrusion is curved surface.
Display panel as described above, it is preferable that there are pixel openings, the pixel openings are described on the luminescent layer
Projection in array substrate is located at the protrusion in the projection in the array substrate.
Display panel as described above, it is preferable that the pixel openings of adjacent three constitute pixel unit, the pixel
Projection of the unit in the array substrate is located at the protrusion in the projection in the array substrate.
Display panel as described above, it is preferable that the filter layer includes light shield layer and optical filter, is set on the light shield layer
It is equipped with the optical filtering mouth with the pixel openings face, the optical filter is arranged in the optical filtering mouth.
Display panel as described above, it is preferable that towards the middle film layer of the array substrate and towards the filter
Each middle film layer between the middle film layer of photosphere all has protrusion, and each protrusion is in the array substrate
Projection is overlapped.
Display panel as described above, it is preferable that the display panel further includes hyaline layer, and the hyaline layer is arranged in institute
State the side that filter layer deviates from the array substrate.
The embodiment of the present invention also provides a kind of display device, including shell and display panel as described above, described aobvious
Show that panel is arranged in the shell.
Display panel provided in an embodiment of the present invention and display device, array substrate, luminescent layer, encapsulated layer and filter layer
It is stacked, and encapsulated layer and luminescent layer, between array substrate and filter layer, luminescent layer is arranged close to array substrate；Envelope
Dress layer includes the multiple middle film layers being stacked, in two neighboring middle film layer, close to the folding of the middle film layer of array substrate
Penetrate the refractive index that rate is greater than the middle film layer far from array substrate；After ambient is injected into display panel, in display panel
It is reflected on metal layer, reflection light is during by encapsulated layer, friendship of the meeting between two adjacent middle film layers
Interface is totally reflected, and then reduces the reflection light projected by display panel, improves the contrast of display panel.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this hair
Bright some embodiments for those of ordinary skill in the art without creative efforts, can be with root
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the structural schematic diagram one of display panel provided in an embodiment of the present invention；
Fig. 2 is the structural schematic diagram two of encapsulated layer in display panel provided in an embodiment of the present invention；
Fig. 3 is the structural schematic diagram three of encapsulated layer in display panel provided in an embodiment of the present invention；
Fig. 4 is the structural schematic diagram four of encapsulated layer in display panel provided in an embodiment of the present invention；
Fig. 5 is the structural schematic diagram five of encapsulated layer in display panel provided in an embodiment of the present invention.
Description of symbols:
10: array substrate；
20: luminescent layer；
201: pixel openings；
30: filter layer；
301: optical filtering mouth；
40: encapsulated layer；
401: middle film layer；
402: protrusion；
50: hyaline layer.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
In the present invention, unless otherwise specific regulation, the terms such as term " installation ", " connected ", " connection ", " fixation " are answered
It is interpreted broadly, for example, it may be being fixedly connected, is also possible to removably connect, or be integrally formed, can be mechanical connect
It connects, is also possible to be electrically connected or can communicate each other；It can be directly connected, can also be indirectly connected with by intermediate medium, it can
To be the interaction relationship of connection or two elements inside two elements, unless otherwise restricted clearly.For ability
For the those of ordinary skill in domain, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
Embodiment one
Fig. 1 is please referred to, the present embodiment provides a kind of display panels, comprising: the array substrate 10 that is stacked, luminescent layer
20, encapsulated layer 40 and filter layer 30；Encapsulated layer 40 and luminescent layer 20 shine between filter layer 30 and array substrate 10
Layer 20 is arranged close to array substrate 10；Encapsulated layer 40 includes the multiple middle film layers 401 being stacked；Two neighboring middle film layer
In 401, the folding of the middle film layer 401 far from array substrate 10 is greater than close to the refractive index of the middle film layer 401 of array substrate 10
Penetrate rate.
In the present embodiment, luminescent layer 20 includes pixel confining layer and luminescence unit, is provided in pixel confining layer multiple
Pixel openings 201 are provided with luminescence unit in each pixel openings 201, and luminescence unit can be organic light-emitting units.It is preferred that
Ground, when luminescence unit is organic light-emitting units, display panel can be flexible display panels, i.e. display panel can occur curved
Folding improves user experience to adapt to different application environments.
Specifically, multiple thin film transistor (TFT)s are provided in array substrate 10, between array substrate 10 and pixel confining layer
Be provided with multiple first electrodes, correspondingly, each first electrode is electrically connected with a thin film transistor (TFT), and every one first electricity
Pole is corresponding with a luminescence unit；The side of array substrate 10 is provided with second electrode in luminescent layer 20, in film crystalline substance
When the first electrode electrification that body control system is connected electrically, the luminescence unit corresponding with the first electrode shines.Wherein, the first electricity
It can be extremely the metal layer being mainly made of metal materials such as silver, copper, second electrode can be mainly transparent by tin indium oxide etc.
Conductive layer is constituted.
In the present embodiment, luminescent layer 20 and encapsulated layer 40 are arranged between light shield layer and array substrate 10, and luminescent layer
20 are arranged close to array substrate 10；Second electrode can be set between encapsulated layer 40 and luminescent layer 20, certain second electrode
It can be set and deviate from the side of luminescent layer 20 in encapsulated layer 40.
With continued reference to Fig. 1, the side that encapsulated layer 40 deviates from luminescent layer 20, filter layer is arranged in filter layer 30 in the present embodiment
30 may include light shield layer and optical filtering mouth 301, and the optical filtering mouth 301 with 201 face of pixel openings, optical filtering mouth are provided on light shield layer
301 are arranged in optical filtering mouth 301.Light shield layer is made of opaque light screening material, and extraneous light, which is arranged such, to be passed through
Optical filtering mouth 301 is injected into display panel；Reduce the light being injected into display panel.In addition, when in pixel openings 201
When luminescence unit shines, the light that luminescence unit issues is projected by corresponding optical filtering mouth 301；Light shield layer can hinder at this time
Only the light in optical filtering mouth 301 is propagated into adjacent optical filtering mouth 301, avoids light crosstalk between adjacent optical filtering mouth 301.
With continued reference to Fig. 1, in the present embodiment, luminescent layer 20 and the setting of encapsulated layer 40 light shield layer and array substrate 10 it
Between, and luminescent layer 20 is arranged close to array substrate 10；I.e. encapsulated layer 40 is between luminescent layer 20 and filter layer 30, encapsulated layer
40 for being packaged luminescent layer 20, in order to avoid air is contacted with luminescence unit, and then influences luminescence unit work.Encapsulated layer 40
Including the multiple middle film layers 401 being stacked, the packaging effect to luminescent layer 20 is can be improved in multiple middle film layers 401.
In the present embodiment, in two neighboring middle film layer 401, close to the refractive index of the middle film layer 401 of array substrate 10
Greater than the refractive index of the middle film layer 401 far from array substrate 10；So that by filter layer 30 to the direction of array substrate 10, entirely
The refractive index of encapsulated layer 40 is gradually increased.
Ambient injects display panel, and after reflecting on the metal layer in display panel, wherein metal layer can be with
For first electrode or other film layers made of metal；Reflection light is propagated to outside display panel, is being passed through in two neighboring
Between film layer 401 when, at least part reflection light is totally reflected, it is possible to reduce by display panel project reflection light, mention
The high contrast of display panel.
During ambient injects display panel, light is when by two neighboring middle film layer 401, a part
Light reflects, and refraction and then directive array substrate 10 occur for a part of light；Due to being leaned in two neighboring middle film layer 401
The refractive index of the middle film layer 401 of nearly array substrate 10 is greater than the refractive index far from the middle film layer 401 between array, so that light
During being propagated to array substrate 10, when reaching two 401 interfaces of middle film layer of arbitrary neighborhood and array substrate 10
Angle it is unequal, the reflection light and array base formed at the interface of any two neighboring middle film layer 401 at this time
The angle of plate 10 is also unequal；In this way when light passes through encapsulated layer 40, multi beam reflection light, and each reflection light are formed
It is unequal with the angle of array substrate 10, light is broken up；And the position of human eye of external user is fixed, such setting can also
To reduce the reflection light that user receives, contrast is improved.In addition, since light is passing through two neighboring middle film layer 401
When reflect, and then reduce the light across encapsulated layer 40, and then reduce the reflection light formed on the metal layer.
The present embodiment with no restrictions, is connected in two middle film layers 401 to the material of each middle film layer 401 as long as meeting,
Being greater than the refractive index of middle film layer 401 far from array substrate 10 close to the refractive index of the middle film layer 401 of array substrate 10 is
It can.
Preferably, a middle film layer 401 in two neighboring middle film layer 401 is organic layer to the present embodiment, another
Middle film layer 401 is inorganic layer.The encapsulated layer 40 being made of organic layer and inorganic layer, it is same compared with high leakproofness guaranteeing to have
When, also improve the flatness of encapsulated layer 40.Further, the organic layer and inorganic layer for constituting encapsulated layer 40 can alternately be set
It sets.
Display panel provided in this embodiment, array substrate 10, luminescent layer 20, encapsulated layer 40 and the stacking of filter layer 30 are set
It sets, and encapsulated layer 40 and luminescent layer 20, between array substrate 10 and filter layer 30, luminescent layer 20 is close to array substrate 10
Setting；Encapsulated layer 40 includes multiple middle film layers 401 for being stacked, in two neighboring middle film layer 401, close to array substrate
The refractive index of 10 middle film layer 401 is greater than the refractive index of the middle film layer 401 far from array substrate 10；Ambient is injected into
It after display panel, is reflected on the metal layer of display panel, reflection light, can be in phase during by encapsulated layer 40
It is totally reflected at interface between two adjacent middle film layers 401, and then reduces the reflected light projected by display panel
Line improves the contrast of display panel.
Embodiment two
With continued reference to Fig. 2 and Fig. 3, on the basis of example 1 in the present embodiment, towards the intermediate coat of array substrate 10
There is protrusion 402 on layer 401；Along the direction of orthogonal array substrate 10, the thickness of protrusion 402 gradually subtracts from centre to edge
It is small.During ambient is injected into display panel, light can reflect at the surface of protrusion 402, due to convex
The thickness in portion 402 is gradually reduced from centre to edge out, so that the transmitting light and array base that are formed at 402 surface of protrusion
Angle between plate 10 differs, and can break up light in this way, and then reduces the reflection light that user receives.In addition, when outer
When boundary's light is vertical with display panel, compared with plane is in the surface of middle film layer 401, most of light can be made in protrusion
402 surface forms reflection light, and then reduces the light for propagating to display panel metal layer.
Specifically, the thickness of protrusion 402 is gradually reduced from edge to centre in the present embodiment, and protrusion 402 can be in
The regular shapes such as coniform, pyramid-shaped or protrusion 402 are in other irregular shapes.
In the present embodiment, protrusion 402 be can be set in middle film layer 401 towards the side of array substrate 10 or convex
The side that middle film layer 401 deviates from array substrate 10 is arranged in portion 402 out.
Preferably, in the present embodiment, the surface of protrusion 402 is curved surface.
With continued reference to Fig. 2 and Fig. 3, in the present embodiment, there are pixel openings 201, pixel openings 201 are in battle array on luminescent layer 20
Projection on column substrate 10 is located at protrusion 402 in the projection in array substrate 10.The light transmittance of pixel confining layer is very low, because
This extraneous light makes pixel openings 201 in array substrate 10 mainly by the metal layer of 201 directive display panel of pixel openings
Projection be located at protrusion 402 in the projection in array substrate 10, it is possible to reduce the light of directive metal layer.
Specifically, a protrusion 402 is corresponding with a pixel openings 201, and pixel openings 201 are in array substrate 10
Projected area can be equal with projected area of the protrusion 402 in array substrate 10, alternatively, pixel openings 201 are in array base
Projected area on plate 10 is less than projected area of the protrusion 402 in array substrate 10.
With continued reference to Fig. 2, in an achievable mode, the middle film layer where protrusion 402 can be by protrusion
402 and the interconnecting piece of the two neighboring protrusion 402 of connection constitute, which is continuous film layer.
With continued reference to Fig. 3, in other implementations, the middle film layer where protrusion 402 can also be by multiple protrusions
Portion 402 is constituted, which is discontinuous film layer.
In the present embodiment, the middle film layer 401 towards array substrate 10 and between the middle film layer 401 towards filter layer 30
Each middle film layer 401 all have protrusion 402, projection of each protrusion 402 in array substrate 10 is overlapped.Directive metal layer
Light reflected on each protrusion 402 when by encapsulated layer 40, be further reduced the light of directive metal layer
Line, to be further reduced the reflection light projected by display panel.
In the present embodiment, display panel further includes hyaline layer 50, and the setting of hyaline layer 50 deviates from array substrate in filter layer 30
10 side.Hyaline layer 50 can reduce the reflection light that ambient is formed on filter layer, to be further reduced by showing
The reflection light that panel projects.Specifically, hyaline layer 50 can be antireflection layer or the higher film layer of other transparencies.
Embodiment three
With continued reference to Fig. 4 and Fig. 5, the difference of the present embodiment and embodiment two includes: three adjacent pixel openings
201 constitute pixel unit, and projection of the pixel unit in array substrate 10 is located at projection of the protrusion 402 in array substrate 10
It is interior.One protrusion 402 is corresponding with three pixel openings 201, phase corresponding with each pixel openings 201 and a protrusion 402
Than, it is possible to reduce the quantity of protrusion 402, and then reduce the manufacture difficulty of encapsulated layer 40.
Specifically, the pixel confining layer between adjacent three pixel openings 201 and pixel openings 201 is in array substrate
Projection on 10 is respectively positioned on protrusion 402 in the projection in array substrate 10.Wherein, three pixels of the pixel unit of composition
It can be the blue light pixel of the feux rouges pixel to glow, the optical filtering pixel of green light and blue light-emitting.
In the present embodiment, the middle film layer 401 towards array substrate 10 and between the middle film layer 401 towards filter layer 30
Each middle film layer 401 all have protrusion 402, projection of each protrusion 402 in array substrate 10 is overlapped.Directive metal layer
Light reflected on each protrusion 402 when by encapsulated layer 40, be further reduced the light of directive metal layer
Line, to be further reduced the reflection light projected by display panel.
Illustratively, the middle middle film layer 401 that protrusion 402 can be located at place deviates from the side of array substrate 10,
Certain protrusion 402 may be located on where middle film layer 401 towards on the side of array substrate 10.
With continued reference to Fig. 4, in an achievable mode, the middle film layer where protrusion 402 can be by protrusion
402 and the interconnecting piece of the two neighboring protrusion 402 of connection constitute, which is continuous film layer.
With continued reference to Fig. 5, in other implementations, the middle film layer where protrusion 402 can also be by multiple protrusions
Portion 402 is constituted, which is discontinuous film layer.
In the present embodiment, display panel further includes hyaline layer 50, and the setting of hyaline layer 50 deviates from array substrate in filter layer 30
10 side.Hyaline layer 50 can reduce the reflection light that ambient is formed on filter layer, to be further reduced by showing
The reflection light that panel projects.Specifically, hyaline layer 50 can be antireflection layer or the higher film layer of other transparencies.
Example IV
With continued reference to Fig. 1 to Fig. 5, the present embodiment provides a kind of display devices, including shell and display as described above
Panel, display panel are arranged in shell.
Display device in the present embodiment can for mobile phone, tablet computer, television set, display, e-book, Electronic Paper,
The products or components having a display function such as smartwatch, laptop, Digital Frame or navigator.
Preferably, display device is flexible display apparatus to the present embodiment, and corresponding display panel is flexible display panels, is led to
The bending of flexible display panels is crossed, to adapt to different application environments, improves user experience.
Display device provided in this embodiment, array substrate 10, luminescent layer 20, encapsulated layer 40 and the stacking of filter layer 30 are set
It sets, and encapsulated layer 40 and luminescent layer 20, between array substrate 10 and filter layer 30, luminescent layer 20 is close to array substrate 10
Setting；Encapsulated layer 40 includes multiple middle film layers 401 for being stacked, in two neighboring middle film layer 401, close to array substrate
The refractive index of 10 middle film layer 401 is greater than the refractive index of the middle film layer 401 far from array substrate 10；Ambient is injected into
It after display panel, is reflected on the metal layer of display panel, reflection light, can be in phase during by encapsulated layer 40
It is totally reflected at interface between two adjacent middle film layers 401, and then reduces the reflected light projected by display panel
Line improves the contrast of display panel.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of display panel characterized by comprising array substrate, luminescent layer, encapsulated layer and the optical filtering being stacked
Layer；
The encapsulated layer and the luminescent layer are between the filter layer and the array substrate, and the luminescent layer is close to institute
State array substrate setting；
The encapsulated layer includes the multiple middle film layers being stacked；In the two neighboring middle film layer, close to the array
The refractive index of the middle film layer of substrate is greater than the refractive index of the middle film layer far from the array substrate.
2. display panel according to claim 1, which is characterized in that described in one in the two neighboring middle film layer
Middle film layer is organic layer, another described middle film layer is inorganic layer.
3. display panel according to claim 1, which is characterized in that towards on the middle film layer of the array substrate
With protrusion；Along the direction of the vertical array substrate, the thickness of the protrusion is gradually reduced from centre to edge.
4. display panel according to claim 3, which is characterized in that the surface of the protrusion is curved surface.
5. display panel according to claim 3, which is characterized in that have pixel openings, the picture on the luminescent layer
Projection of the element opening in the array substrate is located at the protrusion in the projection in the array substrate.
6. display panel according to claim 5, which is characterized in that the pixel openings of adjacent three constitute pixel list
Member, projection of the pixel unit in the array substrate are located at the protrusion in the projection in the array substrate.
7. display panel according to claim 5, which is characterized in that the filter layer includes light shield layer and optical filter, institute
The optical filtering mouth being provided on light shield layer with the pixel openings face is stated, the optical filter is arranged in the optical filtering mouth.
8. display panel according to claim 3, which is characterized in that towards the array substrate the middle film layer and
Protrusion is all had towards each middle film layer between the middle film layer of the filter layer, each protrusion is in the battle array
Projection on column substrate is overlapped.
9. display panel according to claim 1, which is characterized in that the display panel further includes hyaline layer, described
The side that the filter layer deviates from the array substrate is arranged in bright layer.
10. a kind of display device, which is characterized in that including shell and the described in any item display panels of claim 1-9, institute
Display panel is stated to be arranged in the shell.
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| CN111477674A (en) * | 2020-05-22 | 2020-07-31 | 昆山国显光电有限公司 | Array substrate, display panel and display device |
| CN111477673A (en) * | 2020-05-22 | 2020-07-31 | 昆山国显光电有限公司 | Array substrate, display panel and display device |
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