CN107565038A - Display panel and display device - Google Patents
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- CN107565038A CN107565038A CN201710758797.5A CN201710758797A CN107565038A CN 107565038 A CN107565038 A CN 107565038A CN 201710758797 A CN201710758797 A CN 201710758797A CN 107565038 A CN107565038 A CN 107565038A
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- Electroluminescent Light Sources (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
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
The application is related to display technology field, specifically, is related to a kind of display panel and display device.
Background technology
In recent years, organic electroluminescence device (OLED, Organic Light-Emitting Diode) has become sea
Inside and outside very popular Flat Panel Display Industry, follow-on " star " flat panel display is called, this is primarily due to
OLED has 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.
Because the luminescent spectrum of OLED display is wider, therefore raising excitation is most important for practical application, and
The luminous excitation of OLED display can be improved using micro-cavity structure, and improves luminous efficiency.Generally, OLED packaged type
There are two kinds, one kind is glass cement encapsulation, and another kind is thin-film package.During using thin-film package, typically 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 the phenomenon of blue shift occurs in organic electroluminescence device spectrum under high visual angle, actual
Using the organic electroluminescence device of thin-film package under high visual angle, the attenuation of feux rouges and green glow is larger, blue light attenuation compared with
Small, so that blue light brightness highest, feux rouges brightness is minimum, therefore causes the display panel of organic electroluminescence device to be regarded in height
Turned blue under angle, so as to have a strong impact on the display effect of display panel, display effect when particularly bending.
The content of the invention
In view of this, technical problems to be solved in this application are to provide a kind of display panel and display device, 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 light sent compensates, and improves the phenomenon that display panel and display device are turned blue under high visual angle, is advantageous to improve display surface
The display effect of plate and display device, display effect when particularly bending.
In order to solve the above-mentioned technical problem, the application has following technical scheme：
In a first aspect, the application provides a kind of display panel, including：
Array base palte；
The EL structure being arranged on the array base palte, 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, it is arranged at the side of the emitting red light unit away from the array base palte；
Second compensation layer, it is arranged at the side of the green emitting unit away from the array base palte；
3rd compensation layer, it is arranged at the side that the blue-light-emitting unit deviates from the array base palte；
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 more than the refractive index of the 3rd 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, following effect has been reached：
In display panel provided herein and display device, the emitting red light unit in EL structure is remote
The side of array base palte sets at least one layer of first compensation layer, the feux rouges sent using the first compensation layer to emitting red light unit
Compensate, meanwhile, the second compensation layer is set in side of the green emitting unit away from array base palte, utilizes the second compensation layer pair
The green glow that green emitting unit is sent 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 is more than the folding for being arranged at blue-light-emitting unit away from the 3rd compensation layer of array base palte side
Rate is penetrated, the higher compensation layer of refractive index is set on emitting red light unit and green emitting unit, it is possible to increase display panel
With the brightness of display device feux rouges and green glow under high visual angle, and in the presence of the 3rd 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 glow obtains relative improve, the feux rouges and green glow of brightness enhancing
Blue light can be neutralized, be advantageous to improve display panel and the display device phenomenon that color is turned blue under high visual angle, so as to
Be advantageous to improve the display effect of display panel and display device, display effect when particularly bending.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding of the present application, forms the part of the application, this Shen
Schematic description and description please is used to explain the application, does not form the improper restriction to the application.In the accompanying drawings：
Fig. 1 show a kind of sectional view of Traditional 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 representation of display device provided herein.
Embodiment
Some vocabulary has such as been used to censure specific components among specification and claim.Those skilled in the art should
It is understood that hardware manufacturer may call same component with different nouns.This specification and claims are not with name
The difference of title is used as the mode for distinguishing component, but is used as the criterion of differentiation with the difference of component functionally.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 in acceptable error range, those skilled in the art can be described within a certain error range solution
Technical problem, basically reach the technique effect.In addition, " coupling " one word is herein comprising any direct and indirect electric property coupling
Means.Therefore, if the first device of described in the text one is coupled to a second device, representing the first device can directly electrical coupling
The second device is connected to, or the second device is electrically coupled to indirectly by other devices or coupling means.Specification
Subsequent descriptions for implement the application better embodiment, so it is described description be for the purpose of the rule for illustrating the application,
It is not limited to scope of the present application.The protection domain of the application is worked as to be defined depending on appended claims institute defender.
Flexible display panels with its it is bent, low in energy consumption, light the features such as instantly most popular display panel it
One.Fig. 1 show a kind of sectional view of Traditional flexible display panel, and generally, display panel 100 includes array base palte 101, wherein
Array base palte 101 includes flexible substrates 10, and the flexible substrates 10 are made up of any appropriate insulating materials with flexibility, can be with
It is transparent, translucent or opaque.Cushion 30 is provided with flexible substrates 10, usual cushion 30 covers flexibility
The whole upper surface of substrate 10.Thin film transistor (TFT) array (driving function layer 20) is provided with the upper surface of cushion 30, thin
EL structure (light emitting functional layer 40) is provided with above film transistor array, film is provided with 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.
Generally, driving function layer 20 includes：
Semiconductor active layer 25 on cushion 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 insulator 26 above semiconductor active layer 25, gate insulator 26 include such as silica, nitridation
The inorganic layer of silicon or metal oxide, and single or multiple lift can be included；
The first metal layer 21 on gate insulator 26, the specific region of the first metal layer 21 form 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 or multiple lift, 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 silica 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 and drain region by contact hole 29 respectively
Domain, contact hole are by optionally removing gate insulator 26 and the formation of interlayer insulating film 24；And
Passivation layer 23 in second metal layer, passivation layer 23 can be formed by inorganic layers such as silica or silicon nitrides,
Also can be formed by organic layer.
Generally, EL structure 40 includes setting gradually first electrode 43 (be usually anode), luminescent layer 42 and the
Two electrodes 41 (being usually negative electrode).Wherein, first electrode 43 is electrically connected to the drain electrode 28 of thin film transistor (TFT) by contact hole, thin
Film transistor is controlled by its drain electrode 28 to organic luminescent device 40.Luminescent layer 42 can be by low molecule amount organic material
Or high molecular weight organic materials are formed, luminescent layer 42 includes organic emission layer, and can also include hole injection layer (HIL),
It is at least one in hole transmission layer (HTL), electron transfer layer (ETL) and electron injecting layer (EIL).Certainly, the present invention may be used also
Including other film layers of the prior art, to be 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, including：
Array base palte 101；
The EL structure being arranged on array base palte 101, what EL structure 40 included being arranged in array lights
Unit, luminescence unit include emitting red light unit 44, green emitting unit 45 and blue-light-emitting unit 46；
First compensation layer 61, it is arranged at side of the emitting red light unit 44 away from array base palte 101；
Second compensation layer 62, it is arranged at side of the green emitting unit 45 away from array base palte 101；
3rd compensation layer 63, it is arranged at side of the blue-light-emitting unit 46 away from array base palte 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 more than the refractive index of the 3rd compensation layer 63.
Specifically, Fig. 2 is referred to, in display panel 100 provided herein, the red in EL structure 40
One layer of first compensation layer 61 is provided with luminescence unit 44, emitting red light unit 44 is sent using the first compensation layer 61 red
Light is compensated, and one layer of second compensation layer 62 is provided with green emitting unit 45, and green is sent out using the second compensation layer 62
The green glow that light unit 45 is sent compensates；The 3rd compensation layer 63 is provided with blue-light-emitting unit 46.Particularly, it is located at
The second compensation that the refractive index of the first compensation layer 61 on emitting red light unit 44 is more than or equal on green emitting unit 45
The refractive index of layer 62, and the refractive index of the second compensation layer 62 on the green emitting unit 45 is more than and is located at blue-light-emitting list
The refractive index of the 3rd compensation layer 46 in member 46, in this way, setting folding 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 be projected toward high view directions more
Feux rouges, and enable to green emitting unit 45 to project more green glows toward high view directions, therefore display panel can be improved
100 under high visual angle feux rouges and green glow brightness, and the refractive index that is set on blue-light-emitting unit 46 is relatively low 3rd mends
Layer 63 is repaid, compared with feux rouges, green glow so that the blue light that blue-light-emitting unit 46 projects toward high view directions is less, therefore relatively
The brightness of feux rouges and green glow is improved, the feux rouges and green glow of brightness enhancing can neutralize to blue light, and such a mode is advantageous to
Improve the phenomenon that color is turned blue under high visual angle of display panel 100, so as to be advantageous to improve the display effect of display panel 100,
Display effect when particularly bending.
Alternatively, Fig. 2, side of first compensation layer 61 away from emitting red light unit 44 and emitting red light unit 44 are referred to
Beeline between side away from array base palte 101 is D1, D1≤3um.
Specifically, referring to Fig. 2, the application is by side of first compensation layer 61 away from emitting red light unit 44 and emitting red light
Beeline D1 between side of the unit 44 away from array base palte 101 is arranged within 3um, that is to say, that in emitting red light list
The first higher compensation layer 61 of refractive index is set on the negative electrode of member 44 within 3um.Because the wave-length coverage of visible ray generally exists
500nm or so, when setting high-index material in the range of 3um on luminescence unit negative electrode, enable to the luminescence unit past
High view directions project more light, if more than 3um, visible ray of the wave-length coverage in 500um or so reaches high index of refraction material
Influence during material to microcavity effect will very little, it is difficult to luminescence unit is projected more light toward high view directions.Therefore, this Shen
Please when setting higher the first compensation layer 61 of refractive index in the range of 3um on the negative electrode of emitting red light unit 44, this first is mended
The brightness of the feux rouges that emitting red light unit 44 is sent under high visual angle can be effectively improved by repaying layer 61, and for blue-light-emitting unit
46, within 3um and the higher compensation layer of refractive index is not provided with thereon, 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 relative brightness for improving feux rouges, and will be advantageous to after the luminance raising of feux rouges, which improves height, regards
The phenomenon that display panel 100 turns blue under angle, be advantageous to lift display effect.
Alternatively, continuing with referring to Fig. 2, side of second compensation layer 62 away from green emitting unit 45 and green emitting list
Beeline between first 45 sides away from array base palte 101 is D2, D2≤3um.
Specifically, Fig. 2 is referred to, the application sends out side of second compensation layer 62 away from green emitting unit 45 with green
Beeline D2 between side of the light unit 45 away from array base palte 101 is arranged within 3um, that is to say, that in green emitting
The second higher compensation layer 62 of refractive index is set on the negative electrode of unit 45 within 3um.Applicant by verification experimental verification many times,
When setting higher the second compensation layer 62 of refractive index in the range of 3um on the negative electrode of green emitting unit 45, second compensation
The brightness that layer 62 can improve the green glow that green emitting unit 45 is sent under high visual angle, and for blue-light-emitting unit 46,
Within 3um and the higher compensation layer of refractive index is not provided with thereon, compared with green glow, blue-light-emitting unit 46 is penetrated toward high view directions
The blue light gone out is less, therefore the relative brightness for improving green glow, will be advantageous to improve after the luminance raising of green glow aobvious under high visual angle
Show the phenomenon that panel 100 turns blue, be advantageous to lift display effect.
Alternatively, 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 3rd 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 arranged to n1 ＞ 1.7, and now, the feux rouges that emitting red light unit 44 is sent is in the first higher compensation layer 61 of refractive index
Compensating action after, from EL structure project feux rouges will effectively be strengthened, refractive index is higher, brightness enhancing amplitude
It is higher；The refractive index for the second compensation layer 62 being covered on green emitting unit 45 is arranged to 1.6 ＜ n2≤1.7 simultaneously, this
When, the effect of green glow that green emitting unit 45 is sent 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
The 3rd compensation layer 63 between≤1.6, the 3rd compensation layer 63 cause the indigo plant that blue-light-emitting unit 46 projects toward high view directions
Light is less relative to feux rouges and green glow.In this way, the feux rouges that is sent from emitting red light unit 44 and green emitting unit 45 and green
The brightness of light obtain it is relative strengthen, during the blue light that the feux rouges and green glow of enhancing can be sent to blue-light-emitting unit 46 is carried out
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 turned blue is shown, so as to be advantageous to lift the display effect of display panel 100.
Continuing with referring to Fig. 2, the first compensation layer 61, the second compensation layer 62 and the 3rd compensation layer 63 in the application are each other not
It is connected., can be remote in emitting red light unit 44, green emitting unit 45 and blue-light-emitting unit 46 respectively in actual production process
The material of different refractivity is targetedly deposited in side from array base palte 101, forms the first compensation layer 61, second benefit respectively
The compensation layer 63 of layer 62 and the 3rd is repaid, feux rouges and green glow are carried out respectively by the first compensation layer 61 and the second compensation layer 62 with realizing
More precisely compensate for so that the blast degree of feux rouges and green glow is more accurate, can either reliably be neutralized blue light, improves
Display panel shows partially blue phenomenon under high visual angle, will not cause the waste of brightness again.
In embodiment illustrated in fig. 2, the material of the first compensation layer 61, the second compensation layer 62 and the 3rd 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 the 3rd 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 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, because the refractive index of the 3rd compensation layer 63 is less than the refraction of the second compensation layer 62
Rate, the content of oxygen is more than the content of oxygen in the second compensation layer 62 in the 3rd compensation layer 63.The application is formed using identical material
First compensation layer 61, the second compensation layer 62 and the 3rd compensation layer 63, without being individually for the first compensation layer 61, in manufacturing process
Two compensation layers 62 and the 3rd compensation layer 63 select corresponding different materials, therefore are advantageous to simplify production procedure, improve production
Efficiency.
Alternatively, the first compensation layer 61 in the application, the second compensation layer 62 set with layer and form an overall structure, the
The projection covering emitting red light unit 44 and green emitting list of one compensation layer 61 and the second compensation layer 62 on array base palte 101
Member 45, and the projection of the first compensation layer 61 and the second compensation layer 62 on array base palte 101 and blue-light-emitting unit 46 are in battle array
Projection on row 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 the display panel provided.In Fig. 3 and embodiment illustrated in fig. 4, the first compensation layer 61 and the second compensation layer
62 set with layer and form an overall structure, that is, form an entire compensation layer 60, are covered in emitting red light unit 44 and green is sent out
Light unit 45 deviates from the side of array base palte 101, and the orthographic projection of the entire compensation layer 60 on array base palte 101 and blueness
Orthographic projection of the luminescence unit 46 on array base palte 101 does not overlap.The refractive index of the entire compensation layer 60, which is more than, is covered in blueness
The refractive index of the 3rd compensation layer 63 on luminescence unit 46, during using such a design, entire compensation layer 60 assume responsibility for first simultaneously
The role of the compensation layer 62 of compensation layer 61 and second, emitting red light unit 44 and green emitting unit 45 can be sent simultaneously
Feux rouges and green glow compensate, and can equally improve the phenomenon that color is turned blue under high visual angle of display panel 100, in addition, the reality
Apply example and the first compensation layer 61 and the second compensation layer 62 are designed as an entire compensation layer 60, in process of production, can be disposably complete
Into the process that entire compensation layer 60 is covered on emitting red light unit 44 and green emitting unit 45, without being respectively emitting red light
Unit 44 and green emitting unit 45 are separately provided compensation layer, save production process, so as to also advantageously improve production efficiency.
Alternatively, 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 the 3rd 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, the feux rouges that can be sent to emitting red light unit 44 and green emitting unit 45 and green
Light compensates, and strengthens the brightness of feux rouges and green glow；In addition, the constituent material of the 3rd compensation layer 63 in the application is elected as
LiF, LiF belong to the relatively low material of refractive index, and LiF is covered in into blue-light-emitting unit 46 as the 3rd compensation layer 63 deviates from array
During the side of substrate 101, the blue light for making blue-light-emitting unit 46 be projected toward high view directions is less, and passes through Alq3Increase respectively
The brightness of feux rouges that is sent of emitting red light unit 44 and the degree of the brightness of green glow that is sent of green emitting unit 45
High compared to blue light, increased feux rouges and green glow can be neutralized well to blue light, so as to improve display panel 100
The phenomenon turned blue under high visual angle, therefore be advantageous to improve the display effect of display panel 100.
Alternatively, in embodiment illustrated in fig. 3, the material of the first compensation layer 61, the second compensation layer 62 and the 3rd compensation layer 63
Include silicon oxynitride (SiOxNx), the oxygen content of silicon oxynitride is less than the 3rd compensation in the first compensation layer 61 and the second compensation layer 62
The oxygen content of silicon oxynitride in layer 63.
Specifically, another implementation as the application, the first compensation layer 61, second in embodiment illustrated in fig. 3
The constituent material of the compensation layer 63 of compensation layer 62 and the 3rd includes silicon oxynitride, and silicon oxynitride is a kind of adjustable material of refractive index
Material, the more high then refractive index of content of nitrogen oxidation Oxygen in silicon is lower, can be by adjusting nitrogen oxidation Oxygen in silicon in actual production process
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 the 3rd compensation layer 63, so may be such that the first compensation layer 61 and the
The refractive index of two compensation layers 62 is more than the refractive index of the 3rd compensation layer 63, the first larger compensation layer 61 of refractive index and the second compensation
The enhancing degree of the brightness of feux rouges and green glow that 62 pairs of emitting red light unit 44 of layer and green emitting unit 45 are sent is higher, and
The enhancing degree of the brightness for the blue light that less 3rd compensation layer 63 of refractive index is sent to blue-light-emitting unit 46 is relatively low,
In this way, the feux rouges and green glow of blast can neutralize to blue light, what improvement display panel 100 turned blue under high visual angle shows
As, be equally beneficial for lifted display panel 100 display effect.
Alternatively, Fig. 4 is referred to, the 3rd 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 base palte 101, and the 3rd compensation layer 63 is integral structure, and the first compensation layer 61 and second is mended
Repay layer 62 and be arranged on the side that the 3rd compensation layer 63 deviates from array base palte 101.
Specifically, in embodiment illustrated in fig. 4, the 3rd compensation layer 63 is integral structure, and the 3rd compensation layer 63 is set simultaneously
Put the side for deviating from array base palte 101 in emitting red light unit 44, green emitting list 45 and blue-light-emitting unit 46, the first compensation
The compensation layer 62 of layer 61 and second forms an entire compensation layer 60, and the entire compensation layer 60 is arranged on the 3rd compensation layer 63 and deviates from array
The side of substrate 101, entire compensation layer 60 is in the orthographic projection covering emitting red light unit 44 of the place plane of array base palte 101 and green
Color luminescence unit 45 the place plane of array base palte 101 orthographic projection, and with blue-light-emitting unit 46 where array base palte 101
The orthographic projection no overlap of plane.In such cases, because the refractive index of entire compensation layer 60 is more than the refraction of the 3rd compensation layer 63
Rate, the green glow that the feux rouges and green emitting unit 45 that emitting red light unit 44 is sent are sent are passing through the 3rd compensation layer 63
Afterwards, luminance delta is smaller, then after entire compensation layer 60, the brightness of 60 pairs of feux rouges of the entire compensation layer and green glow is carried out
Further strengthen；And the blue light that blue-light-emitting unit 46 is sent is after the 3rd compensation layer, brightness enhancing degree with respect to feux rouges with
Green glow is smaller, and the feux rouges and green glow of enhancing can neutralize to blue light, so as to be advantageous to improve display panel under high visual angle
The phenomenon turned blue, be advantageous to be lifted the display effect of display panel.
It should be noted that in embodiment illustrated in fig. 4, side of the entire compensation layer 60 away from the 3rd compensation layer 63 and red
Beeline between the side of luminescence unit 44 and green emitting unit 45 away from array base palte 101 is less than or equal to 3um.Also
It is that entire compensation layer 60 is arranged on emitting red light unit 44 and the negative electrode of green emitting unit 45 within 3um, it is now, overall
The feux rouges and green glow that compensation layer 60 can be sent to emitting red light unit 44 and green emitting unit 45 to greatest extent are carried out
Compensation, effectively strengthen the brightness of feux rouges and green glow, to realize the reliable neutralization to blue light, being advantageous to, which improves display panel 100, exists
The phenomenon turned 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 3rd compensation layer 63 applied in example is also integral structure, with embodiment illustrated in fig. 4 differently, the first compensation in the embodiment
The compensation layer 62 of layer 61 and second separates each other, directly overlays emitting red light unit 44 respectively and green emitting unit 45 deviates from battle array
The surface of row substrate 101, and the 3rd compensation layer 63 is covered in the first compensation layer 61, the second compensation layer 62 and blue-light-emitting unit 46
Away from the surface of array base palte 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 more than the refractive index of the 3rd compensation layer, the larger He of the first compensation layer 61 of refractive index
Second compensation layer 62 can equally strengthen the brightness of feux rouges and green glow, and the feux rouges and green glow of brightness enhancing can be to blue-light-emitting lists
The blue light that member 46 is sent is neutralized, and improves the phenomenon that display panel turns blue under high visual angle.
Alternatively, in Fig. 2-embodiment illustrated in fig. 4, the display panel 100 in the application also includes thin-film encapsulation layer 50, should
Thin-film encapsulation layer 50 is covered in one that the first compensation layer 61, the second compensation layer 62 and the 3rd compensation layer 63 deviate from array base palte 101
Side.Thin-film encapsulation layer 50 is introduced in the application to be packaged EL structure 40, can effectively avoid the moisture and oxygen in the external world
Gas enters in EL structure 40 to be impacted to the normal luminous of luminescence unit.
Alternatively, referring to Fig. 6, Fig. 6 show another sectional view of display panel provided herein, the application institute
In the display panel 100 of offer, in array base palte 101 towards on the direction of the first compensation layer 61, thin-film encapsulation layer includes first
Inorganic encapsulated layer 51, the inorganic encapsulated layer 53 of first layer organic encapsulation layer 52 and second.
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 on the first compensation layer 61, the and of the second compensation layer 62
3rd compensation layer 63 deviates from the side of array base palte 101, and the inorganic encapsulated layer 53 of first layer organic layer 52 and second is successively set on
On first inorganic encapsulated layer 51, the first compensation layer 61 directly contacts with emitting red light unit 44, the second compensation layer 62 directly with
Green emitting unit 45 contacts, and the 3rd compensation layer 63 directly contacts with blue-light-emitting unit 46.Thin-film encapsulation layer in the application
50 use the sandwich construction of first inorganic encapsulated layer 51- first layer organic layer the second inorganic encapsulateds of the 52- layer 53 set gradually, lead to
The dual resisteance effect of the first inorganic encapsulated layer 51 and the second inorganic encapsulated layer 53 is crossed, can effectively avoid the moisture and oxygen in the external world
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
Measure small, it is easier to bend, during the bending of display panel 100, first layer organic layer 52 can play very to bending external force
Good cushioning effect so that display panel 100 can smoothly be bent.
In embodiment illustrated in fig. 6, the first inorganic encapsulated layer 61 includes aluminum 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 using composition material of the silicon oxynitride as the second inorganic encapsulated layer 53
During material, and when being arranged on 100 outermost layer of display panel, the moisture and oxygen that can not only reliably prevent the external world enter display panel
Inside 101, water oxygen is avoided to be contacted with EL structure, moreover it is possible to play protection work well to the outer surface of display panel 101
With.Using aluminum oxide as during the constituent material of the first inorganic sealing 61, secondary iris action can be played to moisture and oxygen, entered
One step avoids outside moisture and oxygen from entering in the luminescence unit of display panel 100, to ensure that display panel 100 will not be by water
Divide the influence with oxygen.
Alternatively, referring to Fig. 7 and Fig. 8, Fig. 7 show another sectional view of display panel provided herein, Fig. 8
Another sectional view of display panel provided herein is shown, 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 base palte 101 towards luminescence unit
Layer 52, the second inorganic encapsulated layer 53 are filled, the material of the first inorganic encapsulated layer 51 includes aluminum oxide, and 51 layers of the first inorganic encapsulated is multiple
Luminescence unit is covered, is deviated from the first inorganic encapsulated in the first compensation layer 61 with for the 3rd compensation layer 63, the first inorganic encapsulated layer 51
The side of layer 51 is additionally provided with the 4th compensation layer 64, projection covering emitting red light unit of the 4th compensation layer 64 on array base palte
44, and do not overlapped with the projection of green emitting unit 45 and blue-light-emitting unit 46 on array base palte 101, first organic envelope
Fill layer 55 and cover the first compensation layer 61, the second compensation layer 62 and the 4th compensation layer 64.
Specifically, in embodiment illustrated in fig. 7, array base palte is deviated from 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 glow sent respectively to emitting red light unit 44 and green emitting unit 45 compensates, and strengthens feux rouges and green glow
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 making of entire compensation layer 60, without the first compensation layer 61 and the second compensation layer 62 is fabricated separately, has
Beneficial 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 the 3rd compensation layer 63, and the 3rd compensation layer 63 is covered in emitting red light unit 44, green emitting list simultaneously
Member 45 and blue-light-emitting unit 46 deviate from the side of array base palte, pass through emitting red light unit 44, green emitting unit 45 and indigo plant
The luminance delta of feux rouges, green glow and blue light that color luminescence unit 46 is sent is smaller, and deviates from battle array in the first inorganic encapsulated layer 51
The side of row substrate 101 is disposed with the first compensation layer 61 and the 4th compensation layer with 44 corresponding position of emitting red light unit
64, the feux rouges sent by the first compensation layer 61 and the 4th compensation layer 64 to emitting red light unit 44 carries out second compensation, more
Added with the brightness beneficial to enhancing feux rouges；In the first inorganic encapsulated layer 51 away from the side of array base palte 101 and green emitting unit
Position corresponding to 45 is provided with the second compensation layer 62, and the green glow sent using the second compensation layer 62 to green emitting unit 45 is entered
Row compensation, strengthens the brightness of green glow；By carrying out secondary reinforcement to feux rouges, and green glow is suitably strengthened, it can be ensured that enhancing
Feux rouges and green glow blue light is neutralized as far as possible, reduce the phenomenon turned blue under high visual angle of display panel to the full extent,
Be advantageous to improve the display effect of display panel.
Alternatively, in Fig. 7 and embodiment illustrated in fig. 8, the material of the first inorganic encapsulated layer 51 includes aluminum oxide, second inorganic
The material that the material of encapsulated layer 53 includes 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 aluminum oxide as the first inorganic encapsulated layer 51, the folding of aluminum 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 glow and blue light；The He of first compensation layer 61
Second compensation layer 62 uses the adjustable silicon oxynitride of refractive index as constituent material, can be by adjusting nitrogen in actual production process
The content of oxidation Oxygen in silicon causes the refractive index of the first compensation layer 61 and the second compensation layer 62 to be more than the first inorganic encapsulated layer 51
Refractive index, feux rouges and green glow are after the effect of the first higher compensation layer 61 of refractive index and the second compensation layer 62, and brightness is all
A certain degree of enhancing is obtained；4th compensation layer 64 is using the higher silicon nitride (SiN of refractive indexx) constituent material is used as, pass through
Cross brightness strengthens 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 glow can reliably be neutralized to the less blue light of brightness enhancing amount, be advantageous 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 the 3rd compensation layer 63, and its refractive index can be set
1.4≤n3≤1.6 are set to, so, the first inorganic encapsulated layer 51 directly overlays blue-light-emitting unit 46, emitting red light unit 44
Deviate from the side of array base palte 101 with green emitting unit 45, blue light, feux rouges and green glow are after the first inorganic encapsulated layer 51
Luminance delta is smaller.In addition, in Fig. 7, the refractive index of the first compensation layer 61 and the second compensation layer 62 may be configured as 1.6 ＜ n1
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 arranged to 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 sent passes through the collective effect of the first compensation layer 61 and the 4th compensation layer 64
(or collective effect through the compensation layer 64 of entire compensation layer 60 and the 4th), feux rouges obtain secondary reinforcement, the institute of green emitting unit 45
The green glow sent passes through the effect of the second compensation layer 62 (or entire compensation layer 60), has equally also obtained a certain degree of reinforcement,
And luminance delta is relatively small after blue light entered the first inorganic encapsulated layer 51, the feux rouges and green glow of reinforcement can be carried out to 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 away from array base palte 101 with
Beeline D4≤3um between side of the emitting red light unit 44 away from array base palte 101, that is to say, that the first compensation layer
61 and the 4th compensation layer 64 design on the negative electrode of emitting red light unit 44 within 3um, using such a size design, first
The compensation layer 64 of compensation layer 61 and the 4th can play the compensation function to feux rouges to greatest extent, to strengthen emitting red light as far as possible
The brightness for the feux rouges that unit 44 is sent.
Based on same inventive concept, the application also provides a kind of display device, and Fig. 9 show display provided herein
A kind of structural representation of device, the display device 200 include display panel 100, and wherein display panel 100 is carried by the application
The display panel 100 of confession.Display device 200 provided herein can be：Mobile phone, tablet personal computer, television set, display,
Any product or part with real function such as notebook computer, DPF, navigator.Display device 200 in the application
Embodiment can be found in the embodiment of above-mentioned display panel 100, repeating part, here is omitted.
By various embodiments above, beneficial effect existing for the application is：
In display panel provided herein and display device, the emitting red light unit in EL structure is remote
The side of array base palte sets at least one layer of first compensation layer, the feux rouges sent using the first compensation layer to emitting red light unit
Compensate, meanwhile, the second compensation layer is set in side of the green emitting unit away from array base palte, utilizes the second compensation layer pair
The green glow that green emitting unit is sent 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 is more than the folding for being arranged at blue-light-emitting unit away from the 3rd compensation layer of array base palte side
Rate is penetrated, the higher compensation layer of refractive index is set on emitting red light unit and green emitting unit, it is possible to increase display panel
With the brightness of display device feux rouges and green glow under high visual angle, and blue-light-emitting unit toward the blue light that high view directions project compared with
Few, after the brightness of feux rouges and green glow obtains relative improve, the feux rouges and green glow of brightness enhancing can neutralize to blue light, have
Beneficial to display panel and the display device phenomenon that color is turned blue under high visual angle is improved, so as to be advantageous to improve display panel and show
The display effect of showing device, display effect when particularly bending.
Some preferred embodiments of the application have shown and described in described above, but as previously described, it should be understood that the application
Be not limited to form disclosed herein, be not to be taken as the exclusion to other embodiment, and available for various other combinations,
Modification and environment, and above-mentioned teaching or the technology or knowledge of association area can be passed through in the scope of the invention is set forth herein
It is modified., then all should be in this Shen and the change and change that those skilled in the art are carried out do not depart from spirit and scope
Please be in the protection domain of appended claims.
Claims (16)
- A kind of 1. display panel, it is characterised in that including：Array base palte；The EL structure being arranged on the array base palte, the EL structure include the luminous list being arranged in array Member, the luminescence unit include emitting red light unit, green emitting unit and blue-light-emitting unit；First compensation layer, it is arranged at the side of the emitting red light unit away from the array base palte；Second compensation layer, it is arranged at the side of the green emitting unit away from the array base palte；3rd compensation layer, it is arranged at the side that the blue-light-emitting unit deviates from the array base palte；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 more than the 3rd compensation layer refractive index.
- 2. display panel according to claim 1, it is characterised in that first compensation layer is away from the emitting red light list Beeline between the side and the side of the emitting red light unit away from the array base palte of member is D1, D1≤3um.
- 3. display panel according to claim 1, it is characterised in that second compensation layer is away from the green emitting list Beeline between the side and the side of the green emitting unit away from the array base palte of member is D2, D2≤3um.
- 4. display panel according to claim 1, it is characterised 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 3rd compensation layer is n3,1.4≤ n3≤1.6。
- 5. display panel according to claim 1, it is characterised in that first compensation layer, second compensation layer and 3rd compensation layer is not attached to each other.
- 6. display panel according to claim 5, it is characterised in that first compensation layer, second compensation layer and The material of 3rd compensation layer includes silicon oxynitride, and the oxygen content of silicon oxynitride is less than or equal to described in first compensation layer The oxygen content of silicon oxynitride described in second compensation layer, the oxygen content of silicon oxynitride is less than described in second compensation layer The oxygen content of silicon oxynitride described in 3rd compensation layer.
- 7. display panel according to claim 1, it is characterised in that first compensation layer, second compensation layer are same Layer sets and forms an overall structure, and the projection of first compensation layer and second compensation layer on the array base palte 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 Projection of the projection with the blue-light-emitting unit on the array base palte stated on array base palte does not overlap.
- 8. display panel according to claim 7, it is characterised in that first compensation layer and second compensation layer Material includes three (8-hydroxyquinoline) aluminium, and the material of the 3rd compensation layer includes lithium fluoride.
- 9. display panel according to claim 7, it is characterised in that first compensation layer, second compensation layer and The material of 3rd compensation layer includes silicon oxynitride, silicon oxynitride described in first compensation layer and second compensation layer Oxygen content be less than the 3rd compensation layer described in silicon oxynitride oxygen content.
- 10. display panel according to claim 9, it is characterised in that the 3rd compensation layer is additionally arranged at the red Luminescence unit and the green emitting unit deviate from the side of the array base palte, and the 3rd compensation layer is integral knot Structure, first compensation layer and second compensation layer are arranged on the side that the 3rd compensation layer deviates from the array base palte.
- 11. according to the display panel described in claim 5-10 any one, it is characterised in that also comprising thin-film encapsulation layer, institute State thin-film encapsulation layer and cover the first compensation layer, second compensation layer and the 3rd compensation layer.
- 12. display panel according to claim 10, it is characterised in that compensated in the array base palte towards described first On the direction of layer, the thin-film encapsulation layer includes the first inorganic encapsulated layer, the first organic encapsulation layer and the second inorganic encapsulated layer.
- 13. display panel according to claim 12, it is characterised in that the material of the first inorganic encapsulated layer includes oxygen Change aluminium, the material of the second inorganic encapsulated layer includes silicon oxynitride.
- 14. display panel according to claim 7, it is characterised in that also comprising thin-film encapsulation layer, in the array base palte The thin-film encapsulation layer includes the first inorganic encapsulated layer, the first organic encapsulation layer, described on towards the direction of the luminescence unit Second inorganic encapsulated layer, the material of the first inorganic encapsulated layer includes aluminum oxide, and the first inorganic encapsulated layer is multiplexed with 3rd compensation layer, the first inorganic encapsulated layer cover the luminescence unit, in first compensation layer away from described the The side of one inorganic encapsulated layer is additionally provided with the 4th compensation layer, projection covering of the 4th compensation layer on the array base palte The emitting red light unit, and the throwing with the green emitting unit and the blue-light-emitting unit on the array base palte Shadow does not overlap, and first organic encapsulation layer covers the first compensation layer, the second compensation layer and the 4th compensation layer.
- 15. display panel according to claim 14, it is characterised in that the material of the first inorganic encapsulated layer includes oxygen Change aluminium, the material that the material of the second inorganic encapsulated layer includes silicon oxynitride, first compensation layer and second compensation layer Material includes silicon nitride comprising silicon oxynitride, the material of the 4th compensation layer.
- 16. a kind of display device, it is characterised in that include the display panel described in claim 1-15 any one.
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| CN112767850A (en) * | 2021-02-03 | 2021-05-07 | 昆山国显光电有限公司 | Display panel and display device |
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