CN107565038B - Display panel and display device - Google Patents
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- CN107565038B CN107565038B CN201710758797.5A CN201710758797A CN107565038B CN 107565038 B CN107565038 B CN 107565038B CN 201710758797 A CN201710758797 A CN 201710758797A CN 107565038 B CN107565038 B CN 107565038B
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Abstract
The application discloses display panel and display device relates to and shows technical field, and wherein display panel includes: an array substrate; the electroluminescent structure is arranged on the array substrate and comprises light-emitting units which are arranged in an array manner, and each light-emitting unit comprises a red light-emitting unit, a green light-emitting unit and a blue light-emitting unit; the first compensation layer is arranged on one side of the red light-emitting unit, which is far away from the array substrate; the second compensation layer is arranged on one side of the green light-emitting unit far away from the array substrate; the third compensation layer is arranged on one side, away from the array substrate, of the blue light-emitting unit; the refractive index of the first compensation layer is larger than or equal to that of the second compensation layer, and the refractive index of the second compensation layer is larger than that of the third compensation layer. Therefore, the light emitted by the red light-emitting unit and the light emitted by the green light-emitting unit are compensated, and the phenomenon that the display panel and the display device are blue under a high visual angle is favorably improved.
Description
Technical field
This application involves field of display technology, specifically, being related to a kind of display panel 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 self-luminous, wide viewing angle, 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.
Since the luminescent spectrum of OLED display is wider, raising excitation purity is most important for practical application, and
The luminous excitation purity of OLED display can be improved using micro-cavity structure, and improve luminous efficiency.In general, the packaged type of OLED
There are two types of, one is glass cement encapsulation, another kind is thin-film package.When using thin-film package, usually in organic electroluminescent
The top of luminescence unit is packaged using unified film in device, to obstruct the infiltration of moisture and oxygen.In view of organic
The micro-cavity structure of electroluminescent device, so that there is the phenomenon that blue shift in organic electroluminescence device spectrum under high visual angle, it is practical
Using the organic electroluminescence device of thin-film package under high visual angle, the attenuation of feux rouges and green light is larger, blue light attenuation compared with
Small, so that blue light brightness highest, feux rouges brightness is minimum, therefore the display panel of organic electroluminescence device is caused to regard in height
It turns blue under angle, so that the display effect of display panel is seriously affected, display effect when especially bending.
Summary of the invention
In view of this, the technical problem to be solved by the application is to provide a kind of display panel and display devices, in red
Refractive index higher compensation layer is set on luminescence unit and green emitting unit, to emitting red light unit and green emitting unit institute
The phenomenon that light of sending compensates, and improvement display panel and display device are turned blue under high visual angle is conducive to improve display surface
The display effect of plate and display device, display effect when especially bending.
In order to solve the above-mentioned technical problem, the application has following technical solution:
In a first aspect, the application provides a kind of display panel, comprising:
Array substrate；
The EL structure being set in the array substrate, the EL structure include the hair being arranged in array
Light unit, the luminescence unit include emitting red light unit, green emitting unit and blue-light-emitting unit；
First compensation layer is set to the side of the emitting red light unit far from the array substrate；
Second compensation layer is set to the side of the green emitting unit far from the array substrate；
Third compensation layer is set to the side that the blue-light-emitting unit deviates from the array substrate；
Wherein, the refractive index of first compensation layer is more than or equal to the refractive index of second compensation layer, and described second mends
The refractive index for repaying layer is greater than the refractive index of the third compensation layer.
Second aspect, the application also provide a kind of display device, including display panel, and wherein display panel is the application institute
The display panel of offer.
Compared with prior art, display panel described herein and display device achieving the following effects:
In display panel and display device provided herein, the emitting red light unit in EL structure is separate
At least one layer of first compensation layer, the feux rouges issued using the first compensation layer to emitting red light unit is arranged in the side of array substrate
It compensates, meanwhile, the second compensation layer is set far from the side of array substrate in green emitting unit, utilizes the second compensation layer pair
The green light that green emitting unit is issued compensates, and the refractive index of the first compensation layer is more than or equal to the folding of the second compensation layer
Rate is penetrated, the refractive index of the second compensation layer, which is greater than, is set to blue-light-emitting unit away from the folding of the third compensation layer of array substrate side
Rate is penetrated, the higher compensation layer of refractive index is set on emitting red light unit and green emitting unit, can be improved display panel
With the brightness of display device feux rouges and green light under high visual angle, and under the action of third compensation layer, blue-light-emitting unit is toward high
The blue light that view directions project is less, after the brightness of feux rouges and green light obtains opposite improve, the feux rouges and green light of brightness enhancing
Blue light can be neutralized, the phenomenon that being conducive to improve display panel and display device color turned blue under high visual angle, thus
The display effect for being conducive to improve display panel and display device, display effect when especially bending.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present application, constitutes part of this application, this Shen
Illustrative embodiments and their description please are not constituted an undue limitation on the present application for explaining the application.In the accompanying drawings:
Fig. 1 show a kind of sectional view of conventional flexible display panel；
Fig. 2 show a kind of sectional view of display panel provided herein；
Fig. 3 show another sectional view of display panel provided herein；
Fig. 4 show another sectional view of display panel provided herein；
Fig. 5 show another sectional view of display panel provided herein；
Fig. 6 show another sectional view of display panel provided herein；
Fig. 7 show another sectional view of display panel provided herein；
Fig. 8 show another sectional view of display panel provided herein；
Fig. 9 show a kind of structural schematic diagram of display device provided herein.
Specific embodiment
As used some vocabulary to censure specific components in the specification and claims.Those skilled in the art answer
It is understood that hardware manufacturer may call the same component with different nouns.This specification and claims are not with name
The difference of title is as the mode for distinguishing component, but with the difference of component functionally as the criterion of differentiation.Such as logical
The "comprising" of piece specification and claim mentioned in is an open language, therefore should be construed to " include but do not limit
In "." substantially " refer within an acceptable error range, those skilled in the art can within a certain error range solve described in
Technical problem basically reaches the technical effect.In addition, " coupling " word includes any direct and indirect electric property coupling herein
Means.Therefore, if it is described herein that a first device is coupled to a second device, then representing the first device can directly electrical coupling
It is connected to the second device, or the second device indirectly electrically coupled through other devices or coupling means.Specification
Subsequent descriptions be implement the application better embodiment, so it is described description be for the purpose of the rule for illustrating the application,
It is not intended to limit the scope of the present application.The protection scope of the application is as defined by the appended claims.
The features such as flexible display panels are bent with its, low in energy consumption, light as instantly most popular display panel it
One.Fig. 1 show a kind of sectional view of conventional flexible display panel, in general, display panel 100 includes array substrate 101, wherein
Array substrate 101 includes flexible substrates 10, which, can be with by being made with any appropriate insulating materials flexible
It is transparent, translucent or opaque.Buffer layer 30 is provided in flexible substrates 10, usual buffer layer 30 covers flexibility
The entire upper surface of substrate 10.Thin film transistor (TFT) array (driving function layer 20) is provided with, thin in the upper surface of buffer layer 30
It is provided with EL structure (light emitting functional layer 40) above film transistor array, is provided with film on EL structure
Encapsulated layer 50, thin-film encapsulation layer 50 generally include multilayer inorganic layer and organic layer, and inorganic layer and organic layer are staggeredly stacked.
In general, driving function layer 20 includes:
Semiconductor active layer 25 on buffer layer 30, semiconductor active layer 25 include passing through doped N-type foreign ion
Or p type impurity ion and the source region and drain region that are formed；
Gate insulating layer 26 above semiconductor active layer 25, gate insulating layer 26 include such as silica, nitridation
The inorganic layer of silicon or metal oxide, and may include single-layer or multi-layer；
The specific region of the first metal layer 21 on gate insulating layer 26, the first metal layer 21 forms thin film transistor (TFT)
Grid, grid may include golden (Au), silver-colored (Ag), copper (Cu), nickel (Ni), platinum (Pt), palladium (Pd), aluminium (Al), molybdenum (Mo) or chromium
(Cr) single-layer or multi-layer, or such as aluminium (Al): neodymium (Nd) alloy, molybdenum (Mo): the alloy of tungsten (W) alloy；
Interlayer insulating film 24 above the first metal layer 21, interlayer insulating film 24 can be by silicon oxide or silicon nitrides etc.
Insulating inorganic layer formed, can also be formed by insulative organic layer；
Second metal layer on interlayer insulating film 24, the specific region of second metal layer form the source of thin film transistor (TFT)
Electrode 27 and drain electrode 28, source electrode 27 and drain electrode 28 are electrically connected to source area and the drain region and by contact hole 29 respectively
Domain, contact hole are formed by being optionally removed gate insulating layer 26 and interlayer insulating film 24；And
Passivation layer 23 in second metal layer, passivation layer 23 can be formed by inorganic layers such as silicon oxide or silicon nitrides,
It can also be formed by organic layer.
In general, EL structure 40 includes the first electrode 43 (usually anode) set gradually, luminescent layer 42 and the
Two electrodes 41 (usually cathode).Wherein, first electrode 43 is electrically connected to the drain electrode 28 of thin film transistor (TFT) by contact hole, thin
Film transistor controls organic luminescent device 40 by its drain electrode 28.Luminescent layer 42 can be by low molecular weight organic material
Or high molecular weight organic materials are formed, luminescent layer 42 include organic emission layer, and can also include hole injection layer (HIL),
At least one of hole transmission layer (HTL), electron transfer layer (ETL) and electron injecting layer (EIL).Certainly, the present invention may be used also
To include other film layers in the prior art, repeated no more in this explanation.
Fig. 2 show a kind of sectional view of display panel provided herein, and referring to fig. 2, the application provides a kind of aobvious
Show panel, comprising:
Array substrate 101；
The EL structure being set in array substrate 101, EL structure 40 shine including what is be arranged in array
Unit, luminescence unit include emitting red light unit 44, green emitting unit 45 and blue-light-emitting unit 46；
First compensation layer 61 is set to side of the emitting red light unit 44 far from array substrate 101；
Second compensation layer 62 is set to side of the green emitting unit 45 far from array substrate 101；
Third compensation layer 63 is set to side of the blue-light-emitting unit 46 far from array substrate 101；
Wherein, the refractive index of at least one layer of first compensation layer 61 is more than or equal to the refractive index of the second compensation layer 62, and second mends
The refractive index for repaying layer 62 is greater than the refractive index of third compensation layer 63.
Specifically, Fig. 2 is referred to, in display panel 100 provided herein, the red in EL structure 40
It is provided with one layer of first compensation layer 61 on luminescence unit 44, emitting red light unit 44 is issued using the first compensation layer 61 red
Light compensates, and one layer of second compensation layer 62 is provided on green emitting unit 45, utilizes 62 pairs of green hairs of the second compensation layer
The green light that light unit 45 is issued compensates；Third compensation layer 63 is provided on blue-light-emitting unit 46.In particular, being located at
The refractive index of the first compensation layer 61 on emitting red light unit 44 is more than or equal to the second compensation being located on green emitting unit 45
The refractive index of layer 62, and the refractive index for the second compensation layer 62 being located on green emitting unit 45 is greater than positioned at blue-light-emitting list
The refractive index of third compensation layer 46 in member 46, in this way, folding is arranged on emitting red light unit 44 and green emitting unit 45
The higher compensation layer of rate is penetrated, enables to the emitting red light unit 44 in display panel 100 to project toward high view directions more
Feux rouges, and enable to green emitting unit 45 to project more green lights toward high view directions, therefore can be improved display panel
100 under high visual angle feux rouges and green light brightness, and the lower third of the refractive index that is arranged on blue-light-emitting unit 46 is mended
Layer 63 is repaid, compared with feux rouges, green light, so that the blue light that blue-light-emitting unit 46 is projected toward high view directions is less, therefore opposite
The brightness of feux rouges and green light is improved, the feux rouges and green light of brightness enhancing can neutralize blue light, and such mode is conducive to
Improve the phenomenon that color is turned blue under high visual angle of display panel 100, thus be conducive to improve the display effect of display panel 100,
Display effect when especially bending.
Optionally, Fig. 2, side of first compensation layer 61 far from emitting red light unit 44 and emitting red light unit 44 are referred to
The shortest distance between side far from array substrate 101 is D1, D1≤3um.
Specifically, referring to fig. 2, side and emitting red light of the application by the first compensation layer 61 far from emitting red light unit 44
Shortest distance D1 between side of the unit 44 far from array substrate 101 is arranged within 3um, that is to say, that in emitting red light list
Refractive index higher first compensation layer 61 is set within 3um on the cathode of member 44.Since the wave-length coverage of visible light usually exists
500nm or so enables to the luminescence unit past when high-index material is arranged on the luminescence unit cathode within the scope of 3um
High view directions project more light, if visible light of the wave-length coverage in 500um or so reaches high refractive index material more than 3um
It will very little to the influence of microcavity effect when material, it is difficult to luminescence unit be made to project more light toward high view directions.Therefore, this Shen
Please on the cathode of emitting red light unit 44 within the scope of 3um when higher first compensation layer 61 of setting refractive index, this first is mended
The brightness for the feux rouges that emitting red light unit 44 is issued under high visual angle can be effectively improved by repaying layer 61, and for blue-light-emitting unit
46, on it within 3um and the higher compensation layer of not set refractive index, compared with feux rouges, blue-light-emitting unit 46 is toward high visual angle
The blue light that direction is projected is less, therefore the opposite brightness for improving feux rouges, will be conducive to improve high view after the luminance raising of feux rouges
The phenomenon that display panel 100 turns blue under angle is conducive to promote display effect.
Optionally, continuing with referring to fig. 2, side of second compensation layer 62 far from green emitting unit 45 and green emitting list
The shortest distance between first 45 sides far from array substrate 101 is D2, D2≤3um.
Specifically, Fig. 2 is referred to, side of the application by the second compensation layer 62 far from green emitting unit 45 and green are sent out
Shortest distance D2 between side of the light unit 45 far from array substrate 101 is arranged within 3um, that is to say, that in green emitting
Refractive index higher second compensation layer 62 is set within 3um on the cathode of unit 45.Applicant passes through verification experimental verification many times,
On the cathode of green emitting unit 45 within the scope of 3um when higher second compensation layer 62 of setting refractive index, second compensation
The brightness that layer 62 can be improved the green light that green emitting unit 45 is issued under high visual angle, and for blue-light-emitting unit 46,
Thereon within 3um and the higher compensation layer of not set refractive index, compared with green light, blue-light-emitting unit 46 is penetrated toward high view directions
Blue light out is less, therefore the opposite brightness for improving green light, will be conducive to improve after the luminance raising of green light aobvious under high visual angle
Show the phenomenon that panel 100 turns blue, is conducive to promote display effect.
Optionally, referring to fig. 2, in the application, the refractive index of the first compensation layer 61 is n1, n1 > 1.7；Second compensation layer 62
Refractive index be n2,1.6 n2≤1.7 <；The refractive index of third compensation layer 63 is n3,1.4≤n3≤1.6.
Specifically, in embodiment illustrated in fig. 2, the application is by the first compensation layer 61 being covered on emitting red light unit 44
Refractive index is set as n1 > 1.7, at this point, the feux rouges that emitting red light unit 44 is issued is in higher first compensation layer 61 of refractive index
Compensating action after, from EL structure project feux rouges will effectively be enhanced, refractive index is higher, brightness enhancing amplitude
It is higher；1.6 n2≤1.7 < are set by the refractive index for the second compensation layer 62 being covered on green emitting unit 45 simultaneously, this
When, the effect of green light that green emitting unit 45 is issued in second compensation layer 62 more slightly smaller than the refractive index of the first compensation layer 61
Under, brightness has also obtained corresponding enhancing.In addition, the application covers refractive index on blue-light-emitting unit 46 is in 1.4≤n3
Third compensation layer 63 between≤1.6, the indigo plant which project blue-light-emitting unit 46 toward high view directions
Light is less relative to feux rouges and green light.In this way, the feux rouges that is issued from emitting red light unit 44 and green emitting unit 45 and green
The brightness of light obtains enhancing relatively, and the feux rouges and green light of enhancing can be in the blue light progress that blue-light-emitting unit 46 is issued
With, substantially improve the phenomenon that display panel 100 turns blue under high visual angle, while also improve display panel 100 bending when
The phenomenon that display is turned blue, to be conducive to be promoted the display effect of display panel 100.
Continuing with referring to fig. 2, the first compensation layer 61, the second compensation layer 62 and third compensation layer 63 in the application are each other not
It is connected.It in the actual production process, can be remote in emitting red light unit 44, green emitting unit 45 and blue-light-emitting unit 46 respectively
The material of different refractivity is targetedly deposited in side from array substrate 101, is respectively formed the first compensation layer 61, second benefit
Layer 62 and third compensation layer 63 are repaid, feux rouges and green light are carried out respectively by the first compensation layer 61 and the second compensation layer 62 with realizing
More accurate compensation can either reliably be neutralized blue light so that the blast degree of feux rouges and green light is more accurate, be improved
Display panel shows partially blue phenomenon under high visual angle, and not will cause the waste of brightness.
In embodiment illustrated in fig. 2, the material of the first compensation layer 61, the second compensation layer 62 and third compensation layer 63 includes nitrogen oxygen
SiClx (SiOxNx), the oxygen content of silicon oxynitride is less than or equal to silicon oxynitride described in the second compensation layer 62 in the first compensation layer 61
Oxygen content, the oxygen content of silicon oxynitride is less than the oxygen content of silicon oxynitride in third compensation layer 63 in the second compensation layer 62.Nitrogen
Silica is a kind of adjustable material of refractive index, and the more high then refractive index of the content of nitrogen oxidation Oxygen in silicon is lower.In the application, due to
The refractive index of first compensation layer 61 is more than or equal to the refractive index of the second compensation layer 62, therefore, the content of oxygen in the first compensation layer 61
Less than or equal to the content of oxygen in the second compensation layer 62, due to third compensation layer 63 refractive index less than the second compensation layer 62 refraction
Rate, the content of oxygen is greater than the content of oxygen in the second compensation layer 62 in third compensation layer 63.The application is constituted using identical material
First compensation layer 61, the second compensation layer 62 and third compensation layer 63, without being individually for the first compensation layer 61, in the production process
Two compensation layers 62 and third compensation layer 63 select corresponding different materials, therefore are conducive to simplify production procedure, improve production
Efficiency.
Optionally, the first compensation layer 61 in the application, the setting of 62 same layer of the second compensation layer and one overall structure of formation, the
The projection covering emitting red light unit 44 and green emitting list of one compensation layer 61 and the second compensation layer 62 in array substrate 101
Member 45, and the projection of the first compensation layer 61 and the second compensation layer 62 in array substrate 101 and blue-light-emitting unit 46 are in battle array
Projection on column substrate 101 does not overlap.
Specifically, Fig. 3 show another sectional view of display panel provided herein, and Fig. 4 show the application
Another sectional view of provided display panel.In Fig. 3 and embodiment illustrated in fig. 4, the first compensation layer 61 and the second compensation layer
The setting of 62 same layers and one overall structure of formation, that is, form an entire compensation layer 60, is covered on emitting red light unit 44 and green hair
Light unit 45 deviates from the side of array substrate 101, and the orthographic projection of the entire compensation layer 60 in array substrate 101 and blue
Orthographic projection of the luminescence unit 46 in array substrate 101 does not overlap.The refractive index of the entire compensation layer 60, which is greater than, is covered on blue
The refractive index of third compensation layer 63 on luminescence unit 46, when using such design, entire compensation layer 60 assumes responsibility for first simultaneously
The role of compensation layer 61 and the second compensation layer 62 can simultaneously issue emitting red light unit 44 and green emitting unit 45
The phenomenon that feux rouges and green light compensate, and can equally improve display panel 100 color is turned blue under high visual angle, in addition, the reality
It applies example and the first compensation layer 61 and the second compensation layer 62 is designed as an entire compensation layer 60, it in process of production, can be disposable complete
At the process for covering entire compensation layer 60 on emitting red light unit 44 and green emitting unit 45, without respectively emitting red light
Compensation layer is separately provided in unit 44 and green emitting unit 45, saves production process, to also advantageously improve production efficiency.
Optionally, referring to Fig. 3, the material of the first compensation layer 61 and the second compensation layer 62 includes three (8-hydroxyquinoline) aluminium
(i.e. Alq3), the constituent material of third compensation layer 63 includes lithium fluoride (LiF).
Specifically, in embodiment illustrated in fig. 3, the constituent material of the first compensation layer 61 and the second compensation layer 62 includes Alq3,
Alq3Belong to the higher material of refractive index, it can be to feux rouges that emitting red light unit 44 and green emitting unit 45 are issued and green
Light compensates, and enhances the brightness of feux rouges and green light；In addition, the constituent material of the third compensation layer 63 in the application is selected as
LiF, LiF belong to the lower material of refractive index, are covered on blue-light-emitting unit 46 away from array for LiF as third compensation layer 63
When the side of substrate 101, the blue light for projecting blue-light-emitting unit 46 toward high view directions is less, and passes through Alq3It increases separately
The brightness of feux rouges that is issued of emitting red light unit 44 and the degree of the brightness of green light that is issued of green emitting unit 45
Want high compared to blue light, increased feux rouges and green light can neutralize well blue light, so as to improve display panel 100
The phenomenon that turning blue under high visual angle, therefore be conducive to improve the display effect of display panel 100.
Optionally, in embodiment illustrated in fig. 3, the material of the first compensation layer 61, the second compensation layer 62 and third compensation layer 63
Include silicon oxynitride (SiOxNx), the oxygen content of silicon oxynitride is compensated less than third in the first compensation layer 61 and the second compensation layer 62
The oxygen content of silicon oxynitride in layer 63.
Specifically, the first compensation layer 61, second as another implementation of the application, in embodiment illustrated in fig. 3
The constituent material of compensation layer 62 and third compensation layer 63 includes silicon oxynitride, and silicon oxynitride is a kind of adjustable material of refractive index
Material, the more high then refractive index of the content of nitrogen oxidation Oxygen in silicon is lower, in the actual production process, can be by adjusting nitrogen oxidation Oxygen in silicon
Content adjust the refractive index of silicon oxynitride.In the embodiment shown in fig. 3, nitrogen in the first compensation layer 61 and the second compensation layer 62
The oxygen content of silica is less than the oxygen content of silicon oxynitride in third compensation layer 63, so may make the first compensation layer 61 and the
The refractive index of two compensation layers 62 is greater than the refractive index of third compensation layer 63, biggish first compensation layer 61 of refractive index and the second compensation
The enhancing degree of the brightness of feux rouges and green light that 62 pairs of emitting red light unit 44 of layer and green emitting unit 45 are issued is higher, and
The enhancing degree of the brightness for the blue light that the lesser third compensation layer 63 of refractive index issues blue-light-emitting unit 46 is relatively low,
In this way, the feux rouges and green light of blast can neutralize blue light, what improvement display panel 100 turned blue under high visual angle shows
As being equally beneficial for promoting the display effect of display panel 100.
Optionally, Fig. 4 is referred to, the third compensation layer 63 of the application is additionally arranged at emitting red light unit 44 and green hair
Light unit 45 deviates from the side of array substrate 101, and third compensation layer 63 is integral structure, and the first compensation layer 61 and second is mended
It repays layer 62 and the side that third compensation layer 63 deviates from array substrate 101 is set.
Specifically, in embodiment illustrated in fig. 4, third compensation layer 63 is integral structure, which sets simultaneously
It sets and deviates from the side of array substrate 101, the first compensation in emitting red light unit 44, green emitting list 45 and blue-light-emitting unit 46
Layer 61 and the second compensation layer 62 form an entire compensation layer 60, and the entire compensation layer 60 setting deviates from array in third compensation layer 63
The side of substrate 101, entire compensation layer 60 cover emitting red light unit 44 and green in the orthographic projection of 101 place plane of array substrate
Color luminescence unit 45 101 place plane of array substrate orthographic projection, and with blue-light-emitting unit 46 where array substrate 101
The orthographic projection no overlap of plane.In such cases, since the refractive index of entire compensation layer 60 is greater than the refraction of third compensation layer 63
Rate, the green light that the feux rouges and green emitting unit 45 that emitting red light unit 44 is issued are issued are passing through third compensation layer 63
Afterwards, luminance delta is smaller, and after entire compensation layer 60, the brightness of 60 pairs of feux rouges of the entire compensation layer and green light is carried out
It further strengthens；And blue-light-emitting unit 46 issue blue light after third compensation layer, brightness enhance degree with respect to feux rouges with
Green light is smaller, and the feux rouges and green light of enhancing can neutralize blue light, to be conducive to improve display panel under high visual angle
The phenomenon that turning blue is conducive to the display effect for promoting display panel.
It should be noted that in embodiment illustrated in fig. 4, side of the entire compensation layer 60 far from third compensation layer 63 and red
The shortest distance between the side of luminescence unit 44 and green emitting unit 45 far from array substrate 101 is less than or equal to 3um.Also
It is by the setting of entire compensation layer 60 on 45 cathode of emitting red light unit 44 and green emitting unit within 3um, at this point, whole
The feux rouges and green light that compensation layer 60 can to the maximum extent issue emitting red light unit 44 and green emitting unit 45 carry out
Compensation effectively enhances the brightness of feux rouges and green light, and to realize the reliable neutralization to blue light, being conducive to, which improves display panel 100, exists
The phenomenon that turning blue under high visual angle.
In addition to embodiment illustrated in fig. 4, Fig. 5 show another sectional view of display panel provided herein, the reality
The third compensation layer 63 applied in example is also integral structure, differently with embodiment illustrated in fig. 4, the first compensation in the embodiment
Layer 61 and the second compensation layer 62 are separated from each other, and directly overlay emitting red light unit 44 and green emitting unit 45 respectively away from battle array
The surface of column substrate 101, and third compensation layer 63 is covered on the first compensation layer 61, the second compensation layer 62 and blue-light-emitting unit 46
Away from the surface of array substrate 101.The refractive index of the first compensation layer 61 in the embodiment is more than or equal to the second compensation layer 62
Refractive index, the refractive index of the second compensation layer 62 are greater than the refractive index of third compensation layer, biggish first compensation layer, 61 He of refractive index
Second compensation layer 62 can equally enhance the brightness of feux rouges and green light, and the feux rouges and green light of brightness enhancing can be to blue-light-emitting lists
The blue light that member 46 is issued is neutralized, and the phenomenon that display panel turns blue under high visual angle is improved.
Optionally, in Fig. 2-embodiment illustrated in fig. 4, the display panel 100 in the application further includes thin-film encapsulation layer 50, should
Thin-film encapsulation layer 50 is covered on one that the first compensation layer 61, the second compensation layer 62 and third compensation layer 63 deviate from array substrate 101
Side.Thin-film encapsulation layer 50 is introduced in the application to be packaged EL structure 40, can effectively avoid extraneous moisture and oxygen
Gas, which enters in EL structure 40, impacts the normal luminous of luminescence unit.
Optionally, another sectional view of display panel provided herein, the application institute are shown referring to Fig. 6, Fig. 6
In the display panel 100 of offer, in array substrate 101 towards on the direction of the first compensation layer 61, thin-film encapsulation layer includes first
Inorganic encapsulated layer 51, first layer organic encapsulation layer 52 and the second inorganic encapsulated layer 53.
Specifically, in Fig. 6, thin-film encapsulation layer 50 includes the first inorganic encapsulated layer 51, the first layer organic layer set gradually
The first inorganic encapsulated layer 51 in 52 and the second inorganic encapsulated layer 53, Fig. 6 is arranged in the first compensation layer 61,62 and of the second compensation layer
Third compensation layer 63 deviates from the side of array substrate 101, and first layer organic layer 52 and the second inorganic encapsulated layer 53 are successively set on
On first inorganic encapsulated layer 51, the first compensation layer 61 is directly contacted with emitting red light unit 44, the second compensation layer 62 directly with
Green emitting unit 45 contacts, and third compensation layer 63 is directly contacted with blue-light-emitting unit 46.Thin-film encapsulation layer in the application
50 use the multilayered structure of first inorganic encapsulated layer 51- first layer organic layer the second inorganic encapsulated of the 52- layer 53 set gradually, lead to
The dual resisteance effect for crossing the first inorganic encapsulated layer 51 and the second inorganic encapsulated layer 53, can effectively avoid extraneous moisture and oxygen
The normal luminous of luminescence unit is impacted into EL structure 40, while in the first inorganic encapsulated layer 51 and second
First layer organic layer 52 is set between inorganic encapsulated layer 53, it is contemplated that the springform of the modular ratio inorganic material of organic material
Measure small, therefore the springform of the first inorganic encapsulated of modular ratio layer 51 of first layer organic layer 52 and the second inorganic encapsulated layer 53
It measures small, it is easier to be bent, in the bending process of display panel 100, first layer organic layer 52 can play very bending external force
Good buffer function, enables display panel 100 smoothly to bend.
In embodiment illustrated in fig. 6, the first inorganic encapsulated layer 61 includes aluminium oxide, and the material of the second inorganic encapsulated layer 53 includes
Silicon oxynitride.Silicon oxynitride is high temperature ceramic material, has excellent anti-thermal shock, corrosion-resistant, anti-oxidant, high-compactness, low
The characteristics such as density, low bulk, high temperature resistant and resistance to elemental oxygen, when the composition material using silicon oxynitride as the second inorganic encapsulated layer 53
When material, and it is arranged in 100 outermost layer of display panel, extraneous moisture and oxygen can not only be reliably prevented to enter display panel
Inside 101, water oxygen is avoided to contact with EL structure, moreover it is possible to play protection well to the outer surface of display panel 101 and make
With.Using aluminium oxide as when the constituent material of the first inorganic sealing 61, secondary barrier action can be played to moisture and oxygen, into
One step avoids outside moisture and oxygen from entering in the luminescence unit of display panel 100, to guarantee that display panel 100 not will receive water
Divide the influence with oxygen.
Optionally, referring to figs. 7 and 8, Fig. 7 show another sectional view of display panel provided herein, Fig. 8
It is shown another sectional view of display panel provided herein, Fig. 7 and Fig. 8 show the display panel in the application
100 include other two kinds of embodiments of thin-film encapsulation layer 50, and in Fig. 7 and Fig. 8, display panel 100 also includes thin-film encapsulation layer 50,
Thin-film encapsulation layer 50 includes the first inorganic encapsulated layer 51, first organic envelope on direction of the array substrate 101 towards luminescence unit
Layer 52, the second inorganic encapsulated layer 53 are filled, the material of the first inorganic encapsulated layer 51 includes aluminium oxide, and 51 layers of the first inorganic encapsulated multiple
With for third compensation layer 63, the first inorganic encapsulated layer 51 covers luminescence unit, deviates from the first inorganic encapsulated in the first compensation layer 61
The side of layer 51 is additionally provided with the 4th compensation layer 64, and projection of the 4th compensation layer 64 in array substrate covers emitting red light unit
44, and do not overlapped with the projection of green emitting unit 45 and blue-light-emitting unit 46 in array substrate 101, first organic envelope
It fills layer 55 and covers the first compensation layer 61, the second compensation layer 62 and the 4th compensation layer 64.
Specifically, in embodiment illustrated in fig. 7, deviate from array substrate in emitting red light unit 44 and green emitting unit 45
101 side is respectively arranged with the first compensation layer 61 and the second compensation layer 62, utilizes the first compensation layer 61 and the second compensation layer 62
The feux rouges and green light issued respectively to emitting red light unit 44 and green emitting unit 45 compensates, and enhances feux rouges and green light
Brightness.In embodiment illustrated in fig. 8, the first compensation layer 61 and the second compensation layer 62 form an entire compensation layer 60, are producing
Cheng Zhongke disposably completes the production of entire compensation layer 60, it is not necessary that the first compensation layer 61 and the second compensation layer 62 is fabricated separately, has
Conducive to production process is saved, production efficiency is improved.It is in Fig. 7 and embodiment illustrated in fig. 8, first in thin-film encapsulation layer 50 is inorganic
Encapsulated layer 51 is multiplexed with third compensation layer 63, which is covered on emitting red light unit 44, green emitting list simultaneously
Member 45 and blue-light-emitting unit 46 deviate from the side of array substrate, pass through emitting red light unit 44, green emitting unit 45 and indigo plant
The luminance delta of feux rouges, green light and blue light that color luminescence unit 46 issues is smaller, and deviates from battle array in the first inorganic encapsulated layer 51
The side of column substrate 101 position corresponding with emitting red light unit 44 is disposed with the first compensation layer 61 and the 4th compensation layer
64, second compensation is carried out by the feux rouges that the first compensation layer 61 and the 4th compensation layer 64 issue emitting red light unit 44, more
Added with the brightness for being conducive to enhancing feux rouges；Deviate from side and the green emitting unit of array substrate 101 in the first inorganic encapsulated layer 51
45 corresponding positions are provided with the second compensation layer 62, the green light that green emitting unit 45 is issued using the second compensation layer 62 into
Row compensation, enhances the brightness of green light；By carrying out secondary reinforcement to feux rouges, and green light is suitably reinforced, it can be ensured that enhancing
Feux rouges and green light blue light is neutralized as far as possible, reduce display panel the phenomenon that turning blue under high visual angle to the full extent,
Be conducive to improve the display effect of display panel.
Optionally, in Fig. 7 and embodiment illustrated in fig. 8, the material of the first inorganic encapsulated layer 51 includes aluminium oxide, second inorganic
The material of encapsulated layer 53 includes that the material of silicon oxynitride, the first compensation layer 61 and the second compensation layer 62 includes silicon oxynitride, the 4th
The material of compensation layer includes silicon nitride.
Specifically, constituent material of the aluminium oxide as the first inorganic encapsulated layer 51, the folding of aluminium oxide are used in Fig. 7 and Fig. 8
It is low to penetrate rate, after the first inorganic encapsulated layer 51, luminance delta is smaller for feux rouges, green light and blue light；First compensation layer, 61 He
Second compensation layer 62, as constituent material, can pass through adjusting nitrogen using the adjustable silicon oxynitride of refractive index in the actual production process
The content of oxidation Oxygen in silicon makes the refractive index of the first compensation layer 61 and the second compensation layer 62 be greater than the first inorganic encapsulated layer 51
Refractive index, feux rouges and green light are after the effect of higher first compensation layer 61 of refractive index and the second compensation layer 62, and brightness is all
A degree of enhancing is obtained；4th compensation layer 64 uses the higher silicon nitride (SiN of refractive indexx) it is used as constituent material, warp
Cross brightness enhances after the first compensation layer 61 feux rouges the 4th compensation layer 64 be further compensate for effect under, brightness obtains further
Enhancing.The enhanced feux rouges of brightness and green light can reliably neutralize the lesser blue light of brightness enhancing amount, be conducive to improve
The phenomenon that display panel 100 turns blue under high visual angle.
In Fig. 7 and embodiment illustrated in fig. 8, the first inorganic encapsulated layer 51 is multiplexed with third compensation layer 63, and refractive index can be set
1.4≤n3≤1.6 are set to, in this way, the first inorganic encapsulated layer 51 directly overlays blue-light-emitting unit 46, emitting red light unit 44
Deviate from the side of array substrate 101 with green emitting unit 45, blue light, feux rouges and green light are after the first inorganic encapsulated layer 51
Luminance delta is smaller.In addition, the refractive index of the first compensation layer 61 and the second compensation layer 62 may be configured as 1.6 < n1 in Fig. 7
The refractive index of entire compensation layer 60 may be configured as 1.6 < n10≤1.7, two embodiments in≤1.7,1.6 < n2≤1.7, Fig. 8
In the refractive index of the 4th compensation layer 64 be set as n4 > 1.7.First compensation layer 61, entire compensation layer 60 and the 4th compensation layer 64
Refractive index is higher, and the feux rouges that emitting red light unit 44 is issued passes through the collective effect of the first compensation layer 61 and the 4th compensation layer 64
(or collective effect through entire compensation layer 60 and the 4th compensation layer 64), feux rouges obtain secondary reinforcement, 45 institute of green emitting unit
The green light of sending passes through the effect of the second compensation layer 62 (or entire compensation layer 60), has equally also obtained a degree of reinforcement,
And blue light luminance delta into after crossing the first inorganic encapsulated layer 51 is relatively small, the feux rouges and green light of reinforcement can carry out blue light
It is reliable to neutralize, effectively improve the phenomenon that display panel turns blue under high angle.
It should be noted that in Fig. 7 and embodiment illustrated in fig. 8, side of the 4th compensation layer 64 far from array substrate 101 with
Shortest distance D4≤3um between side of the emitting red light unit 44 far from array substrate 101, that is to say, that the first compensation layer
61 and the 4th compensation layer 64 design on the cathode of emitting red light unit 44 within 3um, using such size design, first
Compensation layer 61 and the 4th compensation layer 64 can play the compensation function to feux rouges to greatest extent, to enhance emitting red light as far as possible
The brightness for the feux rouges that unit 44 is issued.
Based on the same inventive concept, the application also provides a kind of display device, and Fig. 9 show display provided herein
A kind of structural schematic diagram of device, the display device 200 include display panel 100, and wherein display panel 100 is mentioned by the application
The display panel 100 of confession.Display device 200 provided herein can be with are as follows: mobile phone, tablet computer, television set, display,
Any products or components with real function such as laptop, Digital Frame, navigator.Display device 200 in the application
Embodiment can be found in the embodiment of above-mentioned display panel 100, repeating place, details are not described herein again.
As can be seen from the above embodiments beneficial effect existing for the application is:
In display panel and display device provided herein, the emitting red light unit in EL structure is separate
At least one layer of first compensation layer, the feux rouges issued using the first compensation layer to emitting red light unit is arranged in the side of array substrate
It compensates, meanwhile, the second compensation layer is set far from the side of array substrate in green emitting unit, utilizes the second compensation layer pair
The green light that green emitting unit is issued compensates, and the refractive index of the first compensation layer is more than or equal to the folding of the second compensation layer
Rate is penetrated, the refractive index of the second compensation layer, which is greater than, is set to blue-light-emitting unit away from the folding of the third compensation layer of array substrate side
Rate is penetrated, the higher compensation layer of refractive index is set on emitting red light unit and green emitting unit, can be improved display panel
With the brightness of display device feux rouges and green light under high visual angle, and the blue light that projects toward high view directions of blue-light-emitting unit compared with
Few, after the brightness of feux rouges and green light obtains opposite improve, the feux rouges and green light of brightness enhancing can neutralize blue light, have
The phenomenon that color is turned blue under high visual angle conducive to improvement display panel and display device, to be conducive to improve display panel and show
The display effect of showing device, display effect when especially bending.
Above description shows and describes several preferred embodiments of the present application, but as previously described, it should be understood that the application
Be not limited to forms disclosed herein, should not be regarded as an exclusion of other examples, and can be used for various other combinations,
Modification and environment, and the above teachings or related fields of technology or knowledge can be passed through within that scope of the inventive concept describe herein
It is modified.And changes and modifications made by those skilled in the art do not depart from spirit and scope, then it all should be in this Shen
It please be in the protection scope of appended claims.
Claims (10)
1. a kind of display panel characterized by comprising
Array substrate；
The EL structure being set in the array substrate, the EL structure include the first electricity set gradually
Pole, luminescent layer and second electrode, the EL structure include the luminescence unit being arranged in array, and the luminescence unit includes
Emitting red light unit, green emitting unit and blue-light-emitting unit；
First compensation layer is set to the side of the emitting red light unit far from the array substrate；
Second compensation layer is set to the side of the green emitting unit far from the array substrate；
Third compensation layer is set to the side that the blue-light-emitting unit deviates from the array substrate；
Wherein, the refractive index of first compensation layer is more than or equal to the refractive index of second compensation layer, second compensation layer
Refractive index be greater than the third compensation layer refractive index；
Thin-film encapsulation layer includes the first nothing towards the thin-film encapsulation layer on the direction of the luminescence unit in the array substrate
Machine encapsulated layer, the first organic encapsulation layer, the second inorganic encapsulated layer, and the first inorganic encapsulated layer is multiplexed with the third compensation
Layer, the first inorganic encapsulated layer cover the luminescence unit, deviate from the first inorganic encapsulated layer in first compensation layer
Side be additionally provided with the 4th compensation layer, projection of the 4th compensation layer in the array substrate covers the emitting red light
Unit, and do not overlapped with the projection of the green emitting unit and the blue-light-emitting unit in the array substrate, institute
It states the first organic encapsulation layer and covers first compensation layer, the second compensation layer and the 4th compensation layer.
2. display panel according to claim 1, which is characterized in that first compensation layer is far from the emitting red light list
The shortest distance between the side and the side of the emitting red light unit far from the array substrate of member is D1, D1≤3um.
3. display panel according to claim 1, which is characterized in that second compensation layer is far from the green emitting list
The shortest distance between the side and the side of the green emitting unit far from the array substrate of member is D2, D2≤3um.
4. display panel according to claim 1, which is characterized in that the refractive index of first compensation layer is n1, n1 >
1.7；The refractive index of second compensation layer is n2,1,6 n2≤1.7 <；The refractive index of the third compensation layer be n3,1.4≤
n3≤1.6。
5. display panel according to claim 1, which is characterized in that first compensation layer, second compensation layer are same
Layer is arranged and forms an overall structure, and the projection of first compensation layer and second compensation layer in the array substrate is covered
The emitting red light unit and the green emitting unit are covered, and first compensation layer and second compensation layer are in institute
The projection stated in array substrate is not overlapped with projection of the blue-light-emitting unit in the array substrate.
6. display panel according to claim 5, which is characterized in that first compensation layer and second compensation layer
Material includes three (8-hydroxyquinoline) aluminium, and the material of the third compensation layer includes lithium fluoride.
7. display panel according to claim 6, which is characterized in that first compensation layer, second compensation layer and
The material of the third compensation layer includes silicon oxynitride, silicon oxynitride described in first compensation layer and second compensation layer
Oxygen content be less than the third compensation layer described in silicon oxynitride oxygen content.
8. display panel according to claim 7, which is characterized in that the third compensation layer is additionally arranged at the red hair
Light unit and the green emitting unit deviate from the side of the array substrate, and the third compensation layer is integral knot
The side that the third compensation layer deviates from the array substrate is arranged in structure, first compensation layer and second compensation layer.
9. display panel according to claim 1, which is characterized in that the material of the first inorganic encapsulated layer includes oxidation
Material of the material comprising silicon oxynitride, first compensation layer and second compensation layer of aluminium, the second inorganic encapsulated layer
Material comprising silicon oxynitride, the 4th compensation layer includes silicon nitride.
10. a kind of display device, which is characterized in that include display panel described in any one of claim 1-9.
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| TWI800538B (en) * | 2018-10-08 | 2023-05-01 | 晶元光電股份有限公司 | Light-emitting device |
| CN109830515B (en) * | 2019-02-19 | 2021-04-02 | 上海天马微电子有限公司 | Display panel and display device |
| US10777716B1 (en) * | 2019-03-20 | 2020-09-15 | Mikro Mesa Technology Co., Ltd. | Pixel encapsulating structure |
| US10777717B1 (en) * | 2019-03-20 | 2020-09-15 | Mikro Mesa Technology Co., Ltd. | Pixel encapsulating structure |
| CN110518146B (en) * | 2019-08-30 | 2022-02-25 | 京东方科技集团股份有限公司 | Thin film packaging structure and display panel |
| CN111176006A (en) * | 2020-01-02 | 2020-05-19 | 京东方科技集团股份有限公司 | Display panel and preparation method thereof |
| CN111293232B (en) | 2020-02-24 | 2021-06-25 | 武汉华星光电半导体显示技术有限公司 | Flexible display panel |
| CN112767850B (en) * | 2021-02-03 | 2022-07-29 | 昆山国显光电有限公司 | Display panel and display device |
| CN114141807B (en) * | 2021-11-29 | 2024-08-09 | 厦门天马微电子有限公司 | Display panel and display device |
| CN114924436B (en) * | 2022-05-17 | 2023-12-12 | 武汉华星光电技术有限公司 | Array substrate and liquid crystal display panel |
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| JP2010232163A (en) * | 2009-03-03 | 2010-10-14 | Fujifilm Corp | Method of manufacturing light-emitting display device, light-emitting display device, and light-emitting display |
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