CN110335957A - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
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- CN110335957A CN110335957A CN201910346175.0A CN201910346175A CN110335957A CN 110335957 A CN110335957 A CN 110335957A CN 201910346175 A CN201910346175 A CN 201910346175A CN 110335957 A CN110335957 A CN 110335957A
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/86—Arrangements for improving contrast, e.g. preventing reflection of ambient light
- H10K50/865—Arrangements for improving contrast, e.g. preventing reflection of ambient light comprising light absorbing layers, e.g. light-blocking layers
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
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- Electroluminescent Light Sources (AREA)
Abstract
Display panel provided by the invention and display device successively fold substrate, luminescent layer and the color blocking layer set in the display panel being based on.Wherein, color blocking layer includes multiple color blocking units, and the black matrix for each color blocking unit to be isolated；The surface of black matrix is provided with the display panel structure of anti-reflecting layer, to improve the light absorption of black matrix by being provided with anti-reflecting layer, so that photoresist layer obtains relative efficiency reduction for the reflectivity of external environmental light, decrease the external environmental light accounting that luminescent layer is emitted from display panel, optical crosstalk phenomenon is avoided, the display effect of display panel and display device is improved.
Description
Technical field
The present invention relates to electronic technology more particularly to a kind of display panel and display devices.
Background technique
In recent years, the display device as a new generation, display panel and display device based on organic electroluminescent technology
Gradually become hot spot.Based on organic electroluminescent technology display panel and display device in, luminescence unit includes metal
Material layer, such as anode or cathode, these metal material layers are higher for the reflectivity of external environmental light, affect display panel or
The display effect of display device.
In order to solve this problem, a kind of mode is that rotatory polarization piece is arranged in the light-emitting surface side of luminescence unit, to eliminate
Reflection of the metal material layer to external environmental light.But since rotatory polarization thickness is larger, brittleness is larger, is easy to happen
Fracture, and with the development phase Divergence that drives thinning display device technology and flexible display device technology day.Another way be
The light-emitting surface side setting of luminescence unit replaces rotatory polarization piece that can still cause using the technology by photoresist and optical filter
The reflectivity of display panel is higher, to influence the display effect of display panel.
Summary of the invention
It is higher for the reflectivity of external environmental light for the above-mentioned existing photoresist layer referred to, it can not very good solution
The problem of external environmental light shows optical crosstalk caused by entering in display panel and the luminescence unit of display device, the present invention provides
A kind of display panel and display device.
On the one hand, the present invention provides a kind of display panels, comprising:
Successively fold substrate, luminescent layer and the color blocking layer set；
Wherein, the color blocking layer includes multiple color blocking units, and the black matrix for each color blocking unit to be isolated；
The surface of the black matrix is provided with anti-reflecting layer, and the light that the anti-reflecting layer is used to improve the black matrix is inhaled
Yield.
In other optional examples, the black matrix is provided with top anti-reflective layer, institute backwards to the surface of the substrate
State at least one that top anti-reflective layer includes fluoroalkyl sulfonate or fluoroacrylic resin.
In other optional examples, the surface of the black matrix towards the substrate is provided with bottom anti-reflection layer, institute
Stating bottom anti-reflection layer includes bottom antireflective coating.
In other optional examples, the black matrix is provided with top anti-reflective layer, institute backwards to the surface of the substrate
The surface for stating black matrix towards the substrate is provided with bottom anti-reflection layer；
Wherein, the bottom anti-reflection layer is made of bottom antireflective coating, and top anti-reflective layer includes fluoroalkyl
At least one of sulfonate or fluoroacrylic resin.
In other optional examples, it is provided with planarization layer between the luminescent layer and the substrate, is formed described flat
It include light screening material in the material of smoothization layer.
In other optional examples, the luminescent layer includes multiple luminescence units, and for each luminescence unit to be isolated
Pixel defining layer；
Wherein, being formed includes light screening material in the material of the pixel defining layer.
In other optional examples, each color blocking unit is oppositely arranged one by one with each luminescence unit.
In other optional examples, the color blocking unit is used for the light through pre-set color, stops non-default color
Light, the light of the pre-set color be according to the color blocking unit it is opposite display luminescence unit determine.
In other optional examples, the light screening material is black organic gel.
On the other hand, a kind of display device, which is characterized in that including aforementioned described in any item display panels.
Display panel provided by the invention and display device successively fold the substrate set, hair in the display panel being based on
Photosphere and color blocking layer.Wherein, color blocking layer includes multiple color blocking units, and the black matrix for each color blocking unit to be isolated；Black
The surface of matrix is provided with the display panel structure of anti-reflecting layer, to improve the light of black matrix by being provided with anti-reflecting layer
Line absorption rate decreases so that photoresist layer obtains relative efficiency reduction for the reflectivity of external environmental light from display
The external environmental light accounting that luminescent layer is emitted in panel, avoids optical crosstalk phenomenon, improves the display of display panel and display device
Effect.
Detailed description of the invention
Through the above attached drawings, it has been shown that the specific example of the disclosure will be hereinafter described in more detail.These attached drawings and
Verbal description is not intended to limit the scope of this disclosure concept by any means, but is ability by reference to particular example
Field technique personnel illustrate the concept of the disclosure.
Fig. 1 is a kind of structural schematic diagram for display panel that the prior art provides；
Fig. 2 is the structural schematic diagram for another display panel that the prior art provides；
Fig. 3 is a kind of structural schematic diagram of display panel provided by the invention；
Fig. 4 is the structural schematic diagram of another display panel provided by the invention.
The drawings herein are incorporated into the specification and forms part of this specification, and shows and meets showing for the disclosure
Example, and together with specification for explaining the principles of this disclosure.
Appended drawing reference:
The first substrate of 100-；The first luminescent layer of 110-；
The first luminescence unit of 111-；The first cathode metal layer of 1111-；
120- rotatory polarization piece；130- a quarter light blocking piece；
The first encapsulated layer of 140-；The second substrate of 200-；
The second luminescent layer of 210-；The second luminescence unit of 211-；
222- photoresist layer；2221- filter；
2222- photoresist；The second encapsulated layer of 230-；
The second cathode metal layer of 240-；300- substrate；
310- luminescent layer；311- luminescence unit；
312- pixel defining layer；313- cathode metal layer；
320- color blocking layer；321- color blocking unit；
322- black matrix；3231- bottom anti-reflection layer；
3232- top anti-reflective layer；330- touch screen layer.
Specific embodiment
Here illustrative examples will be illustrated in detail, the example is illustrated in the accompanying drawings.Following description is related to attached
When figure, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Institute in following exemplary example
The embodiment of description does not represent all implementations consistent with this disclosure.On the contrary, they are only and such as appended right
The example of the consistent device and method of some aspects be described in detail in claim, the disclosure.
In recent years, the display device as a new generation, display panel and display device based on organic electroluminescent technology
Gradually become hot spot.Based on organic electroluminescent technology display panel and display device in, luminescence unit includes metal
Material layer, such as anode or cathode, these metal material layers are higher for the reflectivity of external environmental light, affect display panel or
The display effect of display device.
In order to solve this problem, Fig. 1 is a kind of structural schematic diagram for display panel that the prior art provides, as shown in Figure 1,
It include the first substrate 100, the first luminescent layer 110, wherein the first luminescent layer in a kind of wherein existing display panel structure
Rotatory polarization piece 120 is arranged in the light-emitting surface side of the first luminescence unit 111 in 110.
Specifically, incident extraneous natural light passes sequentially through rotatory polarization piece 120, a quarter light blocking piece 130, the first encapsulation
Layer 140 to the first cathode metal layer 1111 in the first luminescence unit 111, and in first cathode metal layer 1111 until occur
Reflection.And reflect extraneous natural light after passing sequentially through the first encapsulated layer 140 and a quarter light blocking piece 130, by rotatory polarization
Piece 120 stops, to can not be emitted from display panel.This allows for the extraneous extraneous natural light that would not observe that the reflection, from
And the optical crosstalk problem of display panel is effectively prevented, improve the display effect of display panel.
But since rotatory polarization piece thickness is larger, brittleness is larger, is easy to happen fracture, and drives with day thinning
The development phase Divergence of display device technology and flexible display device technology.
Fig. 2 is the structural schematic diagram for another display panel that the prior art provides, as shown in Fig. 2, existing in the another kind
It include the second substrate 200, the second luminescent layer 210 in some display panel structures, the second encapsulated layer 230 and the second cathode
Metal layer 240, wherein the light-emitting surface side of the second luminescence unit 211 in the second luminescent layer 210 is provided with photoresist 2222
The photoresist layer 220 formed with filter 2221.
Specifically, filter 2222 can be used for making the light of particular color to pass through, and stop the light of nonspecific color,
Using the characteristic, it is shown in Fig. 2 in the prior art, the second luminescence unit 211 each pixel go out light side, respectively relatively
It is provided with filter 2221 corresponding with each pixel color, these filters 2221 are surround by photoresist 2222, with shape
At photoresist layer 222.When extraneous natural light incidence display panel, it is based on different filters 2221, only part colours
Light is incident and is emitted display panel, still, since the filtering principles of filter 2221 are different from rotatory polarization piece, injects display
In metal surface reflection, which occurs, for some light of panel can still project filter, when light projects at different angles, have
It may be projected from adjacent filter, so that the coloration of the light of the part colours of display panel outgoing is impure, string
Optical phenomenon still exists.
In order to solve the above-mentioned technical problems, the present invention provides a kind of display panel and display devices.
Fig. 3 is a kind of structural schematic diagram of display panel provided by the invention, as shown in figure 3, the display that this example provides
Panel, comprising:
Successively fold substrate 300, luminescent layer 310 and the color blocking layer 320 set；
Wherein, the color blocking layer includes multiple color blocking units 321, and the black matrix 322 for each color blocking unit to be isolated；
The surface of the black matrix 322 is provided with anti-reflecting layer, and the anti-reflecting layer is used to improve the light absorption of the black matrix 322
Rate.
Specifically, aforementioned in order to solve the problems, such as, the color blocking layer 320 of display panel provided by the invention is by multiple colors
What resistance unit 321 and black matrix 322 formed, color blocking unit 321 therein is prepared by filter, can be used for being specific
The light of wave-length coverage or particular color provides light-path, to prevent the light or nonspecific color other than the particular range of wavelengths
Light conducting.
In addition, the black matrix 322 being prepared by light absorbent will be arranged around color blocking unit 321, and form the color blocking
Layer 320.Unlike the prior art, it is additionally provided with anti-reflecting layer on the surface of black matrix 322 of the invention, the anti-reflecting layer
The light absorption of black matrix 322 can be effectively improved.Specifically, the surface of black matrix 322 towards the substrate 300 is provided with bottom
Portion's anti-reflecting layer 3231, the bottom anti-reflection layer 3231 include at least bottom antireflective coating.
The surface of the black matrix 322 towards the substrate 300 is provided with bottom anti-reflection layer 3231, specifically, described
Bottom anti-reflection layer 3231 can use organic bottom antireflective coating material, can also use inorganic bottom antireflective coatings material
Material, the main component of organic bottom antireflective coating therein includes the resin that can be crosslinked, and Inorganic bottom antireflective
The main component of coating includes the silicon-oxygen nitride of CVD deposition.
In the case where the surface of black matrix 322 towards the substrate 300 is not provided with bottom anti-reflection layer 3231, when outer
When the natural light of boundary's environment injects display panel, the light of particular color will be entered inside display panel by color blocking unit 321,
And reflected on the surface of cathode metal layer 313, the natural light of the reflection may be between luminescent layer 310 and photoresist layer 320
Region occur multiple reflections, and eventually by color blocking unit 321 be emitted.In general, in this process, black matrix 322
In the presence of will effectively be absorbed to the reflected light, to avoid the phenomenon.But the extinction effect of black matrix 322 is not absolute, one
Denier black matrix 322 can not absorb the light for reflexing to the bottom surface, the above problem will occur, and then influence the light quality out of display panel
Amount and display effect.
And in this example, since the surface of black matrix 322 towards the substrate 300 is provided with bottom anti-reflection layer 3231,
Therefore, when the natural light of external environment is injected display panel and reflected via cathode metal layer 313, it is coated with the bottom
The black matrix of anti-reflection coating will greatly improve the absorptivity of the reflected light, to effectively reduce in luminescent layer 310 and color
The probability of light multiple reflections occurs between resistance layer 320, and then reduces the accounting of the natural light from display panel emergent light, mentions
The display effect of high display panel and out light quality.
Based on above structure, in optional example, each color blocking unit 321 should be with each luminescence unit 311 one by one
It is oppositely arranged, so that the light that luminescence unit 311 is issued can be as much as possible by color blocking unit 321, improves display surface
The luminous efficiency and brightness of plate.That is, color blocking unit 321 is used for the light through pre-set color, and stop non-default color
Light, the light of the pre-set color are determined according to the opposite display luminescence unit 311 of the color blocking unit 321.
Based on above structure, in optional example, the substrate 300 in display panel can be by flexible plastic substrates, glass base
Plate or quartz base plate etc. are prepared, the present invention to the specific type of substrate 300 and without limitation, it is specific regard actual conditions and
It is fixed.In addition, being also equipped with the drive circuit layer or driving for driving luminescent layer 310 to work on the substrate 300 of the display panel
Circuit film, concrete shape and concrete type also without limitation, specifically depending on actual conditions.
It may include having multiple luminescence units 311, Yi Jiyong in the luminescent layer 310 in optional example based on above structure
In the pixel defining layer 312 that each luminescence unit is isolated.That is, the quantity of pixel defining layer 312 is multiple, and it is exhausted each other
Edge setting.In this example, in order to further avoid reflex that may be present, wherein a kind of realization inside display panel
In mode, which can be prepared by light screening material, and specifically, which can be black organic gel.
Similarly with above-mentioned example principle, after external environment natural light enters display panel, exist and inject luminescence unit 311
It may.Once and the natural light injects luminescence unit 311, will reflect inside luminescence unit 311, and and luminescence unit
311 light issued are emitted from the light-emitting window of luminescence unit together, so that the coloration for the light that luminescence unit 311 issues is not
It is pure.In order to avoid the phenomenon, the material for preparing of the pixel defining layer 312 of luminescence unit 311 is set light screening material by this example,
So that the natural light into luminescence unit 311 can be absorbed by pixel defining layer 312, the natural light is avoided further to shine
Occur to reflect and be emitted inside unit 311, and then improves the display effect of display panel.
Based on above structure, in optional example, planarization layer (figure is provided between luminescent layer 310 and the substrate 300
Do not show), unlike existing planarization layer, the forming material of the planarization layer in this example includes light screening material.Specifically
For, which can be black organic gel.Similarly with above-mentioned example principle, when external environment natural light enters display
After panel, there is between each level that there is a phenomenon where multiple reflections, in this example, due to by planarization layer using hiding
Luminescent material is prepared, and can effectively absorb the light reflected between each level, and the natural light is avoided to be emitted from luminescence unit
The case where, and then improve the display effect of display panel.
On the basis of above structure, Fig. 4 is the structural schematic diagram of another display panel provided by the invention, such as Fig. 4
Display panel shown, that this example provides, comprising:
Successively fold substrate 300, luminescent layer 310 and the color blocking layer 320 set；Wherein, the color blocking layer 320 includes multiple color blockings
Unit 321, and the black matrix 322 for each color blocking unit 321 to be isolated；The surface of the black matrix 322 is provided with antireflection
Layer, the anti-reflecting layer are used to improve the light absorption of the black matrix 322；
Wherein, the black matrix 322 is provided with top anti-reflective layer 3232 backwards to the surface of the substrate 300, specific next
Say, it is aforementioned in order to solve the problems, such as, as documented by aforementioned exemplary, the color blocking layer 320 of display panel provided by the invention be by
What multiple color blocking units 321 and black matrix 322 formed, color blocking unit 321 therein is prepared by filter, can be used for
Light for particular range of wavelengths or particular color provides light-path, to prevent light outside the specific wavelength other than range or non-
The light of particular color is connected.The black matrix 322 being prepared by light absorbent will be arranged around color blocking unit 321, and form
The color blocking layer 320.
Unlike aforementioned exemplary, it is additionally provided with anti-reflecting layer 3232 on the surface of black matrix 322 of the invention, this is anti-
Reflecting layer can effectively improve the light absorption of 322 top area of black matrix.Wherein, specifically, black matrix 322 is backwards to the lining
The surface at bottom 300 is provided with top anti-reflective layer 3232, which includes fluoroalkyl sulfonate or fluorine-containing third
At least one of olefin(e) acid resin, the top anti-reflective layer 3232 control 322 surface of black matrix by optics destructive interference
Reflection selects the refractive index of top anti-reflective layer to refer to following formula (1):
The wherein nTARCIt is expressed as the refractive index of top anti-reflective layer, the nairIndicate air refraction, the nBMTable
Show the refractive index of the black matrix.
In the case where black matrix 322 is not provided with bottom anti-reflection layer 3232 backwards to the surface of the substrate 300, when outer
The natural light of boundary's environment wear touch screen layer 330 be incident upon black matrix 322 backwards to substrate 300 surface when, due to the suction of black matrix 322
Light effect is not absolute, once black matrix 322 can not absorb the light for being incident upon its top surface, light, which will be reflected and be worn, penetrates touch screen
The emergent light that layer 330 is issued with luminescent layer 310 projects together.That is, working as the natural light directive display panel of external environment
When, although black matrix 322 possesses higher light absorption, top surface still can carry out certain reflection to natural light,
The light of the reflection will be emitted from touch screen layer 230, right from black matrix 322 in the light being emitted so as to cause display panel
Natural light reflection and present light have certain accounting, the picture presented so as to cause display panel is partially white, coloration with
It is expected that be not inconsistent, i.e. poor display effect.
Based on the situation, in this example, by being provided with top backwards to the surface of the substrate 300 in black matrix 322
Anti-reflecting layer 3232, the top anti-reflective layer 3232 is by fluoroalkyl sulfonate or at least one material of fluoroacrylic resin
It is prepared, the top anti-reflective layer 3232 controls the reflection on 322 surface of black matrix by optics destructive interference.Due to setting
It is equipped with the anti-reflecting layer, black matrix 322 will be obviously increased for being transmitted through the absorptivity of the light of the top surface natural light, to reduce
The probability for reflecting and being emitted together with emergent light occurs in its top surface for light, to reduce in the light that display panel is emitted
The accounting of the light presented from black matrix 322 to natural light reflection, promotes the display effect of display panel.
Based on above structure, in optional example, each color blocking unit 321 should be with each luminescence unit 311 one by one
It is oppositely arranged, so that the light that luminescence unit 311 is issued can be as much as possible by color blocking unit 321, improves display surface
The luminous efficiency and brightness of plate.
In addition, color blocking unit 321 is used for the light through pre-set color, and stop the light of non-default color, this is default
The light of color is determined according to the opposite display luminescence unit 311 of the color blocking unit 321.
Based on above structure, in optional example, the substrate 300 in display panel can be by flexible plastic substrates, glass base
Plate or quartz base plate etc. are prepared, the present invention to the specific type of substrate 300 and without limitation, it is specific regard actual conditions and
It is fixed.In addition, being also equipped with the drive circuit layer or driving for driving luminescent layer 310 to work on the substrate 300 of the display panel
Circuit film, concrete shape and concrete type also without limitation, specifically depending on actual conditions.
It may include having multiple luminescence units 311, Yi Jiyong in the luminescent layer 310 in optional example based on above structure
In the pixel defining layer 312 that each luminescence unit is isolated.That is, the quantity of pixel defining layer 312 is multiple, and it is exhausted each other
Edge setting.In this example, in order to further avoid reflex that may be present inside display panel, optionally, the pixel
Definition layer 312 is prepared by the material for including at least light screening material, and specifically, light screening material therein can be black organic
Glue.Similarly with above-mentioned example principle, after external environment natural light enters display panel, exist and inject luminescence unit
311 possibility.Once and the natural light inject luminescence unit 311, will be reflected inside luminescence unit 311, and with hair
The light that light unit 311 is issued is emitted from the light-emitting window of luminescence unit 311 together, so that luminescence unit 311 issued
The coloration of light is impure.In order to avoid the phenomenon, the material for preparing of the pixel defining layer 312 of luminescence unit 311 is arranged this example
The natural light is avoided so that the natural light into luminescence unit 311 can be absorbed by pixel defining layer 312 for light screening material
Further occur to reflect and be emitted inside luminescence unit 311, and then improves the display effect of display panel.
Based on above structure, in optional example, planarization layer (figure is provided between luminescent layer 310 and the substrate 300
Do not show), unlike existing planarization layer, the planarization layer in this example is at least by the material system including light screening material
At.Specifically, which can be black organic gel.Similarly with above-mentioned example principle, when external environment natural light
Into after display panel, it there is between each level that there is a phenomenon where multiple reflections, in this example, due to that will planarize
Layer be prepared using light screening material, can effectively absorb the light reflected between each level, avoid the natural light from shine
The case where unit is emitted, and then improve the display effect of display panel.
In addition, it should be noted that, the display panel structure in Fig. 3 and Fig. 4 is only schematic structure, particularly, wherein
Actual conditions of the touch screen layer 230 based on display panel it is settable or be not provided with, can also be other levels, in this hair certainly
This is not limited in bright.In addition, the present invention also provides a kind of display device, including aforementioned described in any item display surfaces
Plate.
It should be noted that the type of the display device is unrestricted.Preferably, display device is flexible display apparatus,
Corresponding display panel is flexible display panels, by the bending of flexible display panels, to adapt to different application environments, is improved
User experience.
Examples above is merely illustrative of the technical solution of the present invention, rather than its limitations；Although referring to foregoing examples
Invention is explained in detail, those skilled in the art should understand that: it still can be to foregoing examples
Documented technical solution is modified, or equivalent substitution of some or all of the technical features；And these are repaired
Change or replaces, the range for each example technique scheme of the present invention that it does not separate the essence of the corresponding technical solution.
Claims (10)
1. a kind of display panel characterized by comprising successively fold substrate, luminescent layer and the color blocking layer set；
Wherein, the color blocking layer includes multiple color blocking units, and the black matrix for each color blocking unit to be isolated；
The surface of the black matrix is provided with anti-reflecting layer, and the anti-reflecting layer is used to improve the light absorption of the black matrix
Rate.
2. display panel according to claim 1, which is characterized in that the black matrix is arranged backwards to the surface of the substrate
There is top anti-reflective layer, the top anti-reflective layer includes at least one of fluoroalkyl sulfonate or fluoroacrylic resin.
3. display panel according to claim 1, which is characterized in that the black matrix is arranged towards the surface of the substrate
There is bottom anti-reflection layer, the bottom anti-reflection layer includes bottom antireflective coating.
4. display panel according to claim 1, which is characterized in that the black matrix is arranged backwards to the surface of the substrate
There is top anti-reflective layer, the surface of the black matrix towards the substrate is provided with bottom anti-reflection layer；
Wherein, the bottom anti-reflection layer includes bottom antireflective coating structure, and the top anti-reflective layer includes fluoroalkyl sulfonic acids
At least one of salt or fluoroacrylic resin.
5. display panel according to claim 1, which is characterized in that be provided between the luminescent layer and the substrate flat
Smoothization layer, being formed includes light screening material in the material of the planarization layer.
6. display panel according to claim 1, which is characterized in that the luminescent layer includes multiple luminescence units, and
For the pixel defining layer of each luminescence unit to be isolated；
Wherein, being formed includes light screening material in the material of the pixel defining layer.
7. display panel according to claim 6, which is characterized in that each color blocking unit and each luminescence unit one
One is oppositely arranged.
8. display panel according to claim 7, which is characterized in that the color blocking unit is used for the light through pre-set color
Line, the light of the pre-set color are determined according to the opposite display luminescence unit of the color blocking unit.
9. according to the described in any item display panels of claim 5-8, which is characterized in that the light screening material is that black is organic
Glue.
10. a kind of display device, which is characterized in that including such as described in any item display panels of claim 1-9.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910346175.0A CN110335957A (en) | 2019-04-26 | 2019-04-26 | Display panel and display device |
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|---|---|---|---|
| CN201910346175.0A CN110335957A (en) | 2019-04-26 | 2019-04-26 | Display panel and display device |
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| CN111162197A (en) * | 2020-01-02 | 2020-05-15 | 京东方科技集团股份有限公司 | Display substrate, preparation method thereof and display device |
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Application publication date: 20191015 |