CN110504381A - The production method and display device of display panel, display panel - Google Patents
The production method and display device of display panel, display panel Download PDFInfo
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- CN110504381A CN110504381A CN201910782336.0A CN201910782336A CN110504381A CN 110504381 A CN110504381 A CN 110504381A CN 201910782336 A CN201910782336 A CN 201910782336A CN 110504381 A CN110504381 A CN 110504381A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/86—Arrangements for improving contrast, e.g. preventing reflection of ambient light
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- 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
- H10K59/12—Active-matrix OLED [AMOLED] displays
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
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Abstract
The invention discloses the production methods and display device of a kind of display panel, display panel.Display panel includes: substrate；Light emitting element layer is located on substrate, and light emitting element layer includes a plurality of light-emitting elements；And light adjustment layer, positioned at the light emission side of light emitting element layer, light adjustment layer includes black matrix and multiple filter units, black matrix includes multiple openings, each filter unit is at least partially arranged in opening, multiple filter units are corresponding with a plurality of light-emitting elements position respectively, wherein at least partly the surface away from light emitting element layer of filter unit is diffusing reflection face.Display panel according to an embodiment of the present invention reduces light adjustment layer to the reflecting effect of environment light, promotes the perception of display panel.In addition, the environment light that the part-structure of light-emitting component is reflected can at least partly be all-trans by diffusing reflection face is incident upon black matrix, black matrix absorbs the part light, to further decrease display panel to the reflecting effect of environment light.
Description
Technical field
The present invention relates to display fields, and in particular to a kind of display panel, the production method of display panel and display dress
It sets.
Background technique
Display panel in the production process, is usually provided with rotatory polarization piece, for reducing environment on the outside of its display surface
Light enters luminous flux in display panel, and then alleviates colour cast or contrast problem caused by display panel internal reflection environment light.
The usual thickness of rotatory polarization piece is larger, is unfavorable for the lightening of display panel.Inventors have found that black square can be passed through
Battle array and filter sheet structure replace rotatory polarization piece, and drop low ambient light enters the luminous flux of display panel.However black matrix and optical filter
Structure itself still has certain reflectivity, influences the perception of display panel.
Summary of the invention
The present invention provides the production method and display device of a kind of display panel, display panel, further improves display surface
The perception of plate.
In a first aspect, the embodiment of the present invention provides a kind of display panel comprising: substrate；Light emitting element layer is located at lining
On bottom, light emitting element layer includes a plurality of light-emitting elements；And light adjustment layer, positioned at the light emission side of light emitting element layer, light adjustment layer
Including black matrix and multiple filter units, black matrix includes multiple openings, and each filter unit is at least partially arranged at out
In mouthful, multiple filter units are corresponding with a plurality of light-emitting elements position respectively, wherein at least partly deviating from for filter unit shines
The surface of element layer is diffusing reflection face.
According to an aspect of an embodiment of the present invention, black matrix includes the first surface away from light emitting element layer, is filtered single
A part of member is swelled relative to first surface to be arranged.
According to an aspect of an embodiment of the present invention, black matrix includes the bulge-structure that first surface is arranged in.
According to an aspect of an embodiment of the present invention, filter unit with a thickness of 1 micron to 4 microns, diffusing reflection face it is flat
Whole degree is 0.025 micron to 1.1 microns.
According to an aspect of an embodiment of the present invention, the first orthographic projection of filter unit on substrate covers corresponding opening
Boundary the second orthographic projection on substrate；The size of first orthographic projection is greater than the size of the second orthographic projection of corresponding opening.
According to an aspect of an embodiment of the present invention, the second orthographic projection of the outer profile of the first orthographic projection and corresponding opening
Profile be similar fitgures, having between the profile of the second orthographic projection of the outer profile and corresponding opening of the first orthographic projection is big
In the spacing for being equal to 2 microns.
According to an aspect of an embodiment of the present invention, light adjustment layer further includes light transmission protective layer, and light transmission protective layer is located at black
Matrix deviates from the side of light emitting element layer, and covers black matrix and multiple filter units.
According to an aspect of an embodiment of the present invention, display panel further include: encapsulated layer, positioned at the back of light emitting element layer
Side from substrate, light adjustment layer are located at the side away from substrate of encapsulated layer.
According to an aspect of an embodiment of the present invention, a plurality of light-emitting elements include different a variety of, the multiple optical filterings lists of color
Member includes different a variety of of color, wherein color is identical between the corresponding filter unit in position and light-emitting component.
Second aspect, the embodiment of the present invention provide a kind of display device comprising the display surface of aforementioned any embodiment
Plate.
The third aspect, the embodiment of the present invention provide a kind of production method of display panel comprising: it is formed on the substrate
Light emitting element layer；And light adjustment layer is formed in the side of light emitting element layer thickness direction, wherein in light emitting element layer thickness
It includes: to form black matrix in the side of light emitting element layer thickness direction that the side in direction, which forms light adjustment layer, and black matrix includes more
A opening；Deviate from the side surface coating liquid state filter of light emitting element layer in black matrix, liquid filter covers black square
Battle array it is at least partially open；It stands, so that the surface away from light emitting element layer of liquid filter generates collapsed configuration；With
And solidify liquid filter, obtain filter unit.
Display panel according to an embodiment of the present invention, the light adjustment layer of display panel include black matrix and multiple optical filterings
Unit, the wherein at least surface away from light emitting element layer of part filter unit are diffusing reflection face, to reduce light adjustment layer pair
The reflecting effect of environment light improves contrast when display panel display, promotes the perception of display panel.In addition, diffusing reflection face
The environment light that the part-structure of light-emitting component is reflected can be at least partly all-trans and be incident upon black matrix, black matrix is to the part
Light is absorbed, to further decrease display panel to the reflecting effect of environment light.
In some alternative embodiments, black matrix includes the bulge-structure that first surface is arranged in, to improve to unrestrained
Reflecting surface irreflexive light and the light that diffusing reflection face is totally reflected absorptivity, further decrease light adjustment layer
To the reflecting effect of environment light.
In some alternative embodiments, light adjustment layer further includes light transmission protective layer, light transmission protective layer cover black matrix with
And multiple filter units, avoid black matrix and multiple filter units from being scratched.When display panel is flexible, light transmission protection
Layer enables to black matrix not to be detached from multiple filter units, improves the stability of light adjustment layer.
The production method of display panel according to an embodiment of the present invention deviates from the side table of light emitting element layer in black matrix
After face is coated with liquid filter, display panel is stood, so that a part of liquid filter opening to black matrix
It is flowed in mouthful and generates collapsed configuration on the surface away from light emitting element layer.After being coated with the solidification of liquid filter, collapsed configuration
The diffusing reflection face of being solidified to form promotes the perception of display panel to reduce light adjustment layer to the reflecting effect of environment light.
Detailed description of the invention
By reading detailed description of non-limiting embodiments referring to the drawings, other feature of the invention,
Objects and advantages will become more apparent upon, wherein the same or similar appended drawing reference indicates the same or similar feature, attached drawing
Do not drawn according to actual ratio.
Fig. 1 shows the top view of display panel according to a first embodiment of the present invention；
Fig. 2 shows A-A in Fig. 1 to sectional view；
Fig. 3 shows light when light adjustment layer is penetrated by ambient lighting in display panel according to a first embodiment of the present invention
Road schematic diagram；
Fig. 4 shows the light of the light adjustment layer of the display panel of one embodiment of the invention and the display panel of a comparative example
The reflectivity of adjustment layer and the relational graph of irradiation optical wavelength；
Fig. 5 shows the perspective view of the part-structure in the region Q in Fig. 1 on substrate；
Fig. 6 shows the top view of display panel according to a second embodiment of the present invention；
Fig. 7 shows the sectional view of B-B direction in Fig. 6；
Fig. 8 shows the flow chart of the production method of display panel according to a first embodiment of the present invention；
Fig. 9, which is shown, forms light adjustment layer step in the production method of display panel according to a first embodiment of the present invention
Flow chart.
In figure:
1000- display panel；
100- substrate；
200- light emitting element layer；210- light-emitting component；211- first electrode；212- light emitting structure；213- second electrode；
220- pixel defining layer；
300- light adjustment layer；310- black matrix；310a- first surface；The second orthographic projection of 311s-；311- opening；312-
Bulge-structure；320- filter unit；The first orthographic projection of 320s-；The diffusing reflection face 321-；330- light transmission protective layer；
400- device layer；
500- encapsulated layer；
L1- external environmental light；The environment light that L2- light emitting element layer is reflected；
Spacing between the profile of second orthographic projection of the outer profile and corresponding opening of the first orthographic projection of W-；
The display panel of 2000- comparative example.
Specific embodiment
The feature and exemplary embodiment of various aspects of the invention is described more fully below, in order to make mesh of the invention
, technical solution and advantage be more clearly understood, below in conjunction with drawings and the specific embodiments, the present invention is carried out further detailed
Thin description.It should be understood that specific embodiment described herein is only configured to explain the present invention, it is not configured as limiting this
Invention.To those skilled in the art, the present invention can be the case where not needing some details in these details
Lower implementation.It is better to the present invention just for the sake of being provided by showing example of the invention to the description of embodiment below
Understand.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, without necessarily requiring or implying between these entities or operation
There are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant are intended to
Cover non-exclusive inclusion, so that the process, method, article or equipment for including a series of elements not only includes that
A little elements, but also including other elements that are not explicitly listed, or further include for this process, method, article or
The intrinsic element of person's equipment.In the absence of more restrictions, the element limited by sentence " including ... ", is not arranged
Except there is also other identical elements in the process, method, article or apparatus that includes the element.
The embodiment of the present invention provides a kind of display panel, which can be Organic Light Emitting Diode (Organic
Light Emitting Diode, OLED) display panel.Below with reference to attached drawing to the display panel of the embodiment of the present invention into
Row illustrates.
Fig. 1 shows the top view of display panel according to a first embodiment of the present invention, Fig. 2 shows A-A in Fig. 1 to cut open
Face figure.The display panel 1000 of first embodiment of the invention includes substrate 100, light emitting element layer 200 and light adjustment layer 300.
Substrate 100 can be substrate made of glass, in some embodiments, it is also possible to be polyimides
Substrate made of (Polyimide, PI) material or material comprising PI, so that substrate 100 is bent.
Light emitting element layer 200 is located on substrate 100.Light emitting element layer 200 includes a plurality of light-emitting elements 210.In some realities
It applies in example, light emitting element layer 200 includes pixel defining layer 220, has multiple pixel openings, Duo Gefa in pixel defining layer 220
Optical element 210 respectively corresponds multiple pixel openings settings.Herein, it is said so that light-emitting component 210 is OLED light-emitting component as an example
It is bright.Light-emitting component 210 is including first electrode 211, the light emitting structure 212 in first electrode 211 and is located at light emitting structure
Second electrode 213 on 212.In some embodiments, first electrode 211 is the anode of light-emitting component 210, second electrode
213 be the cathode of light-emitting component 210, and the second electrode 213 of a plurality of light-emitting elements 210 can mutually be linked as public electrode.
Light adjustment layer 300 is located at the light emission side of light emitting element layer 200.Light adjustment layer 300 includes black matrix (Black
Matrix, BM) 310 and multiple filter units 320.Filter unit 320 is colored filter (Color filter, CF).It is black
Matrix 310 includes multiple openings 311, and each filter unit 320 is at least partially arranged in opening 311, multiple filter units
320 is corresponding with 210 position of a plurality of light-emitting elements respectively.When display panel 1000 is penetrated by ambient lighting, 310 energy of black matrix
Enough absorb a part of environment light, filter unit 320 can filter a part of environment light, thus reduce ambient lighting be incident upon it is luminous
The luminous flux of element layer 200, and then also just reduce the 210 reflectible environment light of institute of light-emitting component, low ambient light is dropped to display
The adverse effect of panel color standard, contrast etc..
Display panel 1000 according to a first embodiment of the present invention, each filter unit 320 have towards light emitting element layer
200 surface and away from the surface of light emitting element layer 200, wherein at least partly filter unit 320 deviates from light-emitting component
The surface of layer 200 is diffusing reflection face 321.Wherein diffusing reflection face 321 is uneven face, can be obtained by roughening treatment.
Fig. 3 shows light when light adjustment layer is penetrated by ambient lighting in display panel according to a first embodiment of the present invention
Road schematic diagram.In figure, the optical path of external environmental light L1 is shown with solid line with the arrow, the member that shines is shown with dotted line with the arrow
The optical path for the environment light L2 that part layer 200 is reflected.
When external environmental light L1 exposes to light adjustment layer 300, a part of external environmental light L1 is in filter unit 320
Diffusing reflection face 321 at diffusing reflection occurs, to reduce light adjustment layer 300 to the reflecting effect of external environmental light L1, improve aobvious
Show contrast when panel 1000 is shown, promotes the perception of display panel 1000.In addition, diffusing reflection face 321 can be by luminous member
At least partly being all-trans for the environment light L2 that part layer 200 is reflected is incident upon black matrix 310, and black matrix 310 inhales the part light
It receives, to further decrease display panel 1000 to the reflecting effect of environment light.
In some embodiments, filter unit 320 with a thickness of 1 micron to 4 microns, wherein diffusing reflection face 321 is smooth
Degree is 0.025 micron to 1.1 microns, so that the rough degree in diffusing reflection face 321 meets suitable flatness requirement,
The diffuse-reflecting power that diffusing reflection face 321 is improved under the certain thickness of filter unit 320, reduces display surface observed by human eye
Plate promotes display effect to the reflecting effect of environment light.
Fig. 4 shows the light adjustment layer of the display panel 1000 of one embodiment of the invention and the display panel of a comparative example
The reflectivity of 2000 light adjustment layer and the relational graph of irradiation optical wavelength.Wherein, in the display panel of one embodiment of the invention
In 1000, the filter unit 320 of light adjustment layer 300 with a thickness of 2 microns, the flatness in diffusing reflection face 321 substantially 0.1 is micro-
Rice；In the display panel 2000 of comparative example, light adjustment layer is 66 microns thick of rotatory polarization piece, other structures and the present invention
The display panel 1000 of embodiment is identical.The data result can be to be tested to obtain by spectroscope.Wherein, comparative example is aobvious
The reflectivity average value for showing the light adjustment layer of panel 2000 is 5.16%, the display panel 1000 of one embodiment of the invention
The reflectivity average value of light adjustment layer is 4.78%.As it can be seen that display panel 1000 according to an embodiment of the present invention, after improving
Light adjustment layer 300 rotatory polarization piece can be brought down below to the average reflectance of external environmental light be averaged to external environmental light
Reflectivity, so as to replace rotatory polarization piece, the adverse effect of drop low ambient light quasi-, contrast etc. to display panel color.
In some embodiments, display panel 1000 further includes device layer 400 and encapsulated layer 500.Device layer 400
Between substrate 100 and light emitting element layer 200.Device layer 400 may include pixel circuit, pixel circuit and light emitting element layer
200 light-emitting component 210 is electrically connected, for driving light-emitting component 210 to show.
Encapsulated layer 500 is located at the side away from substrate 100 of light emitting element layer 200.In this example it is shown that panel
1000 be top light emitting display panel, i.e. the side towards encapsulated layer 500 of light emitting element layer 200 is light emission side.The present embodiment
Light adjustment layer 300 is located at the side away from substrate 100 of encapsulated layer 500.
In some other embodiment, display panel 1000 is bottom light emitting display panel, the i.e. court of light emitting element layer 200
It is light emission side to the side of substrate 100.Light regulating course 300 can be set in light emitting element layer 200 towards the one of substrate 100
Side, light regulating course 300 can be contacted with light emitting element layer 200, can also be in the two directly every equipped with other layers.Such as one
In a little embodiments, light emitting element layer 200 is equipped at intervals with device layer 400 and substrate 100 with light regulating course 300.
In some embodiments, a plurality of light-emitting elements 210 include different a variety of of color；Multiple filter units 320 include
Different a variety of of color.Wherein, color is identical between the corresponding filter unit 320 in position and light-emitting component 210.
Specifically, a plurality of light-emitting elements 210 may include red light-emitting component, green luminousing element and blue-light-emitting
Element, a plurality of light-emitting elements 210 can arrange in predetermined regular array.In one example, shining positioned at left side in Fig. 2
Element 210 be red light-emitting component, middle part light-emitting component 210 be green luminousing element, right side light-emitting component 210 be blue
Color light-emitting component.
Multiple filter units 320 include red filter unit, green filter unit and blue filter unit, multiple filters
The arrangement rule matching corresponding with the arrangement of a plurality of light-emitting elements 210 rule of light unit 320.In one example, in Fig. 2
Filter unit 320 positioned at left side be red filter unit, middle part filter unit 320 be the filter of green filter unit, right side
Light unit 320 is blue filter unit, so that color is identical between the corresponding filter unit 320 in position and light-emitting component 210.
In some embodiments, black matrix 310 includes the first surface 310a away from light emitting element layer 200, filter unit
320 a part is swelled relative to first surface 310a to be arranged.
Fig. 5 shows the perspective view of the part-structure in the region Q in Fig. 1 on substrate.In some embodiments, it filters
Second positive throwing of the boundary of first orthographic projection 320s covering corresponding opening 311 of the unit 320 on substrate 100 on substrate 100
Shadow 311s.Further, the size of the first orthographic projection 320s is greater than the size 311s of the second orthographic projection of corresponding opening 311.In
In some embodiments, the profile of the second orthographic projection 311s of the outer profile and corresponding opening 311 of the first orthographic projection 320s is similar
Figure, in the present embodiment, by the two be it is rectangular for illustrate, in some other embodiment, the first orthographic projection 320s's
Outer profile, corresponding opening 311 the profile of the second orthographic projection 311s can be other figures such as rectangle, circle, ellipse respectively
Shape.
In some embodiments, the outer profile of the first orthographic projection 320s is with the second orthographic projection 311s's of corresponding opening 311
There is spacing W, wherein spacing W is more than or equal to 2 microns between profile.
With continued reference to FIG. 2, in some embodiments, light adjustment layer 300 further includes light transmission protective layer 330.Light transmission protection
Layer 330 can be transparent material and be made.Light transmission protective layer 330 is located at the side that black matrix 310 deviates from light emitting element layer 200, and
And black matrix 310 and multiple filter units 320 are covered, avoid black matrix 310 and multiple filter units 320 from being scratched.When
When display panel 1000 is flexible, light transmission protective layer 330 enables to black matrix 310 not occur with multiple filter units 320
It is detached from, improves the stability of light adjustment layer 300.
Fig. 6 shows the top view of display panel according to a second embodiment of the present invention, and Fig. 7 shows cuing open for B-B direction in Fig. 1
Face figure.The part-structure of the display panel 1000 of the part-structure and first embodiment of the display panel 1000 of second embodiment
It is identical, only the difference of the two is illustrated below, something in common is no longer described in detail.
It is different from the first embodiment, in the present embodiment, black matrix 310 includes that the convex of first surface 310a is arranged in
Play structure 312.Bulge-structure 312 is between adjacent filter unit 320.In the present embodiment, with bulge-structure 312 in substrate
Projection on 100 is illustrated in for netted.In some other embodiment, bulge-structure 312 can be dispersed in adjacent
Multiple convex blocks between filter unit 320, wherein the shape of convex block is any.Multiple convex blocks can between adjacent filter unit 320
By be in array or it is other it is regular in a manner of arrange, can also the irregular arrangement between adjacent filter unit 320.
According to the display panel 1000 of the present embodiment, black matrix 310 includes the bulge-structure that first surface 310a is arranged in
312, thus improve to diffusing reflection face 321 irreflexive light and the light that diffusing reflection face 321 is totally reflected absorption
Rate further decreases light adjustment layer 300 to the reflecting effect of environment light.
The embodiment of the present invention also provides a kind of display device comprising the display panel 1000 of any of the above-described embodiment.
Display device according to an embodiment of the present invention, the light adjustment layer 300 of display panel 1000 include black matrix 310 and multiple filters
Light unit 320, the wherein at least surface away from light emitting element layer 200 of part filter unit 320 are diffusing reflection face 321, thus
Light adjustment layer 300 is reduced to the reflecting effect of environment light, contrast when display panel 1000 is shown is improved, promotes display surface
The perception of plate 1000.In addition, diffusing reflection face 321 can be by environment light that the part-structure of light-emitting component 210 is reflected at least
Part, which is all-trans, is incident upon black matrix 310, and black matrix 310 absorbs the part light, to further decrease display panel 1000
To the reflecting effect of environment light.
The embodiment of the present invention also provides a kind of production method of display panel, below will be with the aobvious of above-mentioned first embodiment
Show and the production method is illustrated for the manufacturing process of panel 1000.
Fig. 8 shows the flow chart of the production method of display panel according to a first embodiment of the present invention, the production method packet
Step S110 is included to step S130.
In step s 110, device layer and light emitting element layer is formed on the substrate.Light emitting element layer may include pixel
Definition layer and a plurality of light-emitting elements, light-emitting component are, for example, OLED light-emitting component.
In the step s 120, encapsulated layer is formed on light emitting element layer.Encapsulated layer can be thin-film encapsulation layer.
In step s 130, light adjustment layer is formed in the side of light emitting element layer thickness direction.In the present embodiment, display
Panel is top light emitting display panel, and the side towards encapsulated layer of light emitting element layer is light emission side, and wherein light adjustment layer is formed in
On encapsulated layer.
Fig. 9, which is shown, forms light adjustment layer step in the production method of display panel according to a first embodiment of the present invention
Flow chart.Above-mentioned step S130 may include step S131 to step S135.
In step S131, black matrix is formed in the side of light emitting element layer thickness direction, is wherein being sealed in the present embodiment
Black matrix is formed on dress layer.Black matrix can form multiple openings by patterning.It in some embodiments, can be to black square
Battle array patterns again, it is made to form bulge-structure away from a side surface of light emitting element layer.The Patternized technique of black matrix can be with
Photoetching process is selected, later by baking, the black matrix that will be patterned into solidifies.
In step S132, deviate from the side surface coating liquid state filter of light emitting element layer, liquid filter in black matrix
Luminescent material can be band logical penetrating type photosensitive material, such as polyvinyl alcohol (polyvinylalcohol, PVA) or other senses
Light high molecular material.Liquid filter covers at least partially open of black matrix.In some embodiments, liquid optical filtering material
The size of the orthographic projection of material on substrate is greater than the size of the opening of corresponding black matrix.
It in step S133, stands, so that the surface away from light emitting element layer of liquid filter generates and collapses knot
Structure.In some embodiments, after completing step S132, display panel can be placed in (20 DEG C to 25 of room temperature in step S133
DEG C) under stand, when standing, is 2 minutes to 5 minutes a length of, e.g. 3 minutes so that a part of liquid filter is to black square
It is flowed in the opening of battle array and generates collapsed configuration on the surface away from light emitting element layer.
In step S134, liquid filter is solidified, filter unit is obtained.The solidification of liquid filter can be with
It is the technique by exposure development.In some embodiments, by large dosage of light exposure, (e.g. wavelength of light is received for 405
Rice, dosage are every square centimeter more than or equal to 400 millijoules), and guarantee development noresidue and do not develop excessively.
The production method of display panel according to an embodiment of the present invention deviates from the side table of light emitting element layer in black matrix
After face is coated with liquid filter, display panel is stood, so that a part of liquid filter opening to black matrix
It is flowed in mouthful and generates collapsed configuration on the surface away from light emitting element layer.After being coated with the solidification of liquid filter, collapsed configuration
The diffusing reflection face of being solidified to form promotes the perception of display panel to reduce light adjustment layer to the reflecting effect of environment light.In
In some embodiment, large dosage of light exposure is passed through to liquid filter and guarantees development noresidue and does not develop excessively,
To guarantee the not developed process planarization of collapsed configuration, the diffusing reflection face of diffusing reflection better effect is obtained.
In some embodiments, after above-mentioned steps S134, formed light adjustment layer the step of can also include step
S135 forms light transmission protective layer away from the side of light emitting element layer in black matrix.Wherein the light transmission protective layer covers black matrix
And multiple filter units.In some embodiments, the formation of light transmission protective layer can be first in black matrix away from light-emitting component
The side spin coating liquid light-transmissive glue of layer obtains light transmission protective layer later after the techniques such as photoetching, solidification.
Light transmission protective layer can be avoided black matrix and multiple filter units are scratched.When display panel is flexible, thoroughly
Light protection layer enables to black matrix not to be detached from multiple filter units, improves the stability of light adjustment layer.
According to present invention embodiment as described above, these embodiments details all there is no detailed descriptionthe, also not
Limiting the invention is only the specific embodiment.Obviously, as described above, can make many modifications and variations.This explanation
These embodiments are chosen and specifically described to book, is principle and practical application in order to better explain the present invention, thus belonging to making
Technical field technical staff can be used using modification of the invention and on the basis of the present invention well.The present invention is only authorized
The limitation of sharp claim and its full scope and equivalent.
Claims (10)
1. a kind of display panel characterized by comprising
Substrate；
Light emitting element layer is located on the substrate, and the light emitting element layer includes a plurality of light-emitting elements；
Light adjustment layer, positioned at the light emission side of the light emitting element layer, the smooth adjustment layer includes that black matrix and multiple optical filterings are single
Member, the black matrix include multiple openings, and each filter unit is at least partially arranged in the opening, multiple described
Filter unit is corresponding with multiple luminous element positions respectively, wherein at least partly described filter unit deviates from the hair
The surface of element layer is diffusing reflection face.
2. display panel according to claim 1, which is characterized in that the black matrix includes deviating from the light emitting element layer
First surface, a part of the filter unit is swelled relative to the first surface to be arranged；
Preferably, the black matrix includes the bulge-structure that the first surface is arranged in.
3. display panel according to claim 1, which is characterized in that the filter unit it is micro- with a thickness of 1 micron to 4
Rice, the flatness in the diffusing reflection face are 0.025 micron to 1.1 microns.
4. display panel according to claim 1, which is characterized in that the filter unit over the substrate first just
The second orthographic projection of the boundary of the corresponding opening of projection covering over the substrate；
The size of first orthographic projection is greater than the size of second orthographic projection of the corresponding opening.
5. display panel according to claim 4, which is characterized in that the outer profile of first orthographic projection with it is corresponding described in
The profile of second orthographic projection of opening is similar fitgures, the institute of the outer profile of first orthographic projection and the corresponding opening
State the spacing having more than or equal to 2 microns between the profile of the second orthographic projection.
6. display panel according to claim 1, which is characterized in that the smooth adjustment layer further includes light transmission protective layer, institute
It states light transmission protective layer and is located at the black matrix and deviate from the side of the light emitting element layer, and cover the black matrix and multiple
The filter unit.
7. display panel according to claim 1, which is characterized in that the display panel further include:
Encapsulated layer, positioned at the side away from the substrate of the light emitting element layer,
The smooth adjustment layer is located at the side away from the substrate of the encapsulated layer.
8. display panel according to claim 1, which is characterized in that multiple light-emitting components include different more of color
Kind, multiple filter units include different a variety of of color, wherein the corresponding filter unit in position and the luminous member
Color is identical between part.
9. a kind of display device, which is characterized in that including display panel according to any one of claims 1 to 8.
10. a kind of production method of display panel characterized by comprising
Light emitting element layer is formed on the substrate；And
Light adjustment layer is formed in the side of the light emitting element layer thickness direction,
Wherein, the side in the light emitting element layer thickness direction forms light adjustment layer and includes:
Black matrix is formed in the side of the light emitting element layer thickness direction, the black matrix includes multiple openings；
Deviate from the side surface coating liquid state filter of the light emitting element layer, the liquid filter in the black matrix
Cover at least partly described opening of the black matrix；
It stands, so that the surface away from the light emitting element layer of the liquid filter generates collapsed configuration；And
The liquid filter is solidified, filter unit is obtained.
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| CN110504381B (en) | 2022-05-17 |
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