CN110211491A - A kind of preparation method of color membrane substrates, display panel and display panel - Google Patents

A kind of preparation method of color membrane substrates, display panel and display panel Download PDF

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Publication number
CN110211491A
CN110211491A CN201910486340.2A CN201910486340A CN110211491A CN 110211491 A CN110211491 A CN 110211491A CN 201910486340 A CN201910486340 A CN 201910486340A CN 110211491 A CN110211491 A CN 110211491A
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China
Prior art keywords
opening
display panel
black matrix
underlay substrate
quantum dot
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Granted
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CN201910486340.2A
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Chinese (zh)
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CN110211491B (en
Inventor
靳倩
黄维
隋凯
董超
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BOE Technology Group Co Ltd
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BOE Technology Group Co Ltd
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Priority to CN201910486340.2A priority Critical patent/CN110211491B/en
Publication of CN110211491A publication Critical patent/CN110211491A/en
Priority to PCT/CN2020/081763 priority patent/WO2020244291A1/en
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    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133509Filters, e.g. light shielding masks
    • G02F1/133512Light shielding layers, e.g. black matrix
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133509Filters, e.g. light shielding masks
    • G02F1/133514Colour filters
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336Illuminating devices
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336Illuminating devices
    • G02F1/133614Illuminating devices using photoluminescence, e.g. phosphors illuminated by UV or blue light

Abstract

The present invention relates to field of display technology, in particular to the preparation method of a kind of color membrane substrates, display panel and display panel.The color membrane substrates include: underlay substrate;It is set to the first black matrix of one side surface of underlay substrate, the first black matrix, which is formed with, is open interior rule of pressing filled with the first green quantum dot layer and the first red quantum dot layer with one-to-one first opening of the sub-pixel unit of display panel, first;It is set to the second black matrix that underlay substrate deviates from one side surface of the first black matrix, the second black matrix is formed with to be open with the first opening one-to-one second, corresponding with the first opening filled with the second green quantum dot layer and the second red quantum dot layer in the second opening.The color membrane substrates increase the thickness of quantum stippling film in entire color membrane substrates, to reduce the transmitance of blue light, improve the conversion ratio and entirety display colour gamut of blue light.

Description

A kind of preparation method of color membrane substrates, display panel and display panel
Technical field
The present invention relates to field of display technology, in particular to the preparation of a kind of color membrane substrates, display panel and display panel Method.
Background technique
It is capable of the natural color of presentation of maximum magnitude with progress, display with the continuous development of display technology and to people Bring the visual experience more really shaken extremely important.In the implementation of wide colour gamut, quantum dot light emitting spectrum is narrow, color Purity is high shows unique advantage.Existing quantum dot is divided into luminescence generated by light and the luminous side of two class of electroluminescent in display field Formula.
One of which of the QDCF (Quantum Dot Color Filter, quantum stippling film) as luminescence generated by light quantum dot Using being widely studied in recent years, red green quantum dot can be excited to realize full-color display with the light of blue light backlight.Wherein with Blue light organic emissive diode, the micro-led device for backlight design, due to can actively shine, not need to increase The preparation of polaroid is considered as the best route selection of large scale TV.Existing QDCF device is generally asked present in the integration process Topic is blue light leak, and quantum stippling film cannot completely convert the blue light in backlight to required red-green glow, this is largely effected on The promotion of colour gamut.Research finds that the transmitance of blue light will be greatly reduced with the thickness promotion of quantum dot, and makes in the prior art About the main reason for quantum dot thickness thickness for being pixel dielectric layer.
Summary of the invention
The invention discloses the preparation methods of a kind of color membrane substrates, display panel and display panel, for improving quantum dot Color film blue light transformation efficiency is to improve colour gamut.
In order to achieve the above objectives, the present invention the following technical schemes are provided:
A kind of color membrane substrates, comprising:
Underlay substrate;
It is set to the first black matrix of one side surface of underlay substrate, first black matrix is formed with and display panel Sub-pixel unit it is one-to-one first opening, wherein it is corresponding with the green sub-pixels of display panel first opening in fill out Filled with the first green quantum dot layer, the first red quantum is filled in the first opening corresponding with the red sub-pixel of display panel Point layer;
It is set to the second black matrix that the underlay substrate deviates from one side surface of the first black matrix, the second black square Battle array is formed with and one-to-one second opening of first opening, wherein corresponding with the green sub-pixels of display panel the Filled with the second green quantum dot layer in two openings, filled with the in the second opening corresponding with the red sub-pixel of display panel Two red quantum dot layers;
In every mutual corresponding first opening of a pair and second opening, first opening is in the substrate base Orthographic projection on plate is overlapped with orthographic projection of second opening on the underlay substrate.
Above-mentioned color membrane substrates, by being respectively formed the first black matrix and the second black matrix, and first in underlay substrate two sides First opening of black matrix is corresponding with the second opening of the second black matrix, and the in a manner of corresponding with the color of display panel Filling color quantum dot layer in one opening and the second opening, increases the thickness of quantum stippling film in entire color membrane substrates, thus The transmitance for reducing blue light improves the conversion ratio and entirety display colour gamut of blue light.
Optionally, along the direction perpendicular to the underlay substrate, the height of first black matrix is 4-8 μm, and/or, The height of second black matrix is 4-8 μm.
Optionally, filled with scattering particles in first opening corresponding with the blue subpixels of display panel, and/ Or, being filled with scattering particles in second opening corresponding with the blue subpixels of display panel.
It optionally, further include the color film encapsulated layer for being set to the underlay substrate two sides.
A kind of display panel, including backlight assembly and above-mentioned technical proposal provide it is any as described in color film base Plate;
The backlight assembly is docked with the color membrane substrates and is encapsulated by encapsulating structure.
Optionally, the backlight assembly includes backlight substrate, and the backlight substrate is for docking the one of the color membrane substrates Side is disposed with backlight device and backlight package layer.
Optionally, the encapsulating structure includes packaging adhesive frame;
The packaging adhesive frame is used to encapsulate the side of the color membrane substrates and the backlight assembly.
It optionally, further include being set to the color membrane substrates away from the protective film of the backlight assembly side and/or justifying inclined Mating plate.
A kind of preparation method of display panel, comprising:
First black matrix with multiple first openings is formed in a side surface of underlay substrate;
The second black square with multiple second openings is formed away from a side surface of first black matrix in underlay substrate Battle array, second opening corresponded with first opening and first orthographic projection of the opening on the underlay substrate with Orthographic projection of second opening on the underlay substrate is overlapped.
Protective film is formed in the side surface that the underlay substrate is provided with first black matrix;
The green quantum dot layer of filling second into second opening corresponding with the green sub-pixels of display panel, to The second red quantum dot layer is filled in corresponding second opening of the red sub-pixel of display panel;
Encapsulate the side that the underlay substrate is provided with second black matrix;
The side that the underlay substrate is provided with second black matrix is docked with backlight assembly;
Remove the protective film;
The green quantum dot layer of filling first into the first opening corresponding with the green sub-pixels of display panel, to display The first red quantum dot layer is filled in corresponding first opening of the red sub-pixel of panel;
The side for encapsulating the underlay substrate and the backlight assembly and the underlay substrate are away from the backlight assembly Side.
Optionally, the green quantum dot of filling second into the second opening corresponding with the green sub-pixels of display panel Layer, to it is corresponding with the red sub-pixel of display panel second opening in fill the second red quantum dot layer when, further include to Scattering particles is filled in corresponding second opening of the blue subpixels of display panel;
And/or the green quantum dot of filling first into the first opening corresponding with the green sub-pixels of display panel Layer, to it is corresponding with the red sub-pixel of display panel first opening in fill the first red quantum dot layer when, further include to Scattering particles is filled in corresponding first opening of the blue subpixels of display panel.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of color membrane substrates provided in an embodiment of the present invention;
Fig. 2 is a kind of structural schematic diagram of display panel provided in an embodiment of the present invention;
Fig. 3 is a kind of flow diagram of the preparation method of display panel provided in an embodiment of the present invention;
Fig. 4 a to Fig. 4 i is display surface in a kind of preparation method preparation process of display panel provided in an embodiment of the present invention Plate schematic diagram of structural changes.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.
As shown in Figure 1, the embodiment of the invention provides a kind of color membrane substrates, which includes:
Underlay substrate 10;
It is set to the first black matrix 11 of 10 1 side surface of underlay substrate, the first black matrix 11 is formed with and display panel One-to-one first opening of sub-pixel unit, wherein filling in the first opening corresponding with the green sub-pixels of display panel There is the first green quantum dot layer 111, is filled with the first amount of red in the first opening corresponding with the red sub-pixel of display panel Son point layer 112;
It is set to the second black matrix 12 that underlay substrate 10 deviates from 11 1 side surface of the first black matrix, 12 shape of the second black matrix Cheng Youyu first be open it is one-to-one second opening, wherein it is corresponding with the green sub-pixels of display panel second opening in It is red filled with second in the second opening corresponding with the red sub-pixel of display panel filled with the second green quantum dot layer 121 Color quantum dot layer 122;
In every mutual corresponding the first opening and the second opening of a pair, the first orthographic projection of the opening on underlay substrate 10 with Orthographic projection of second opening on underlay substrate 10 is overlapped.
The display surface of color display panel is divided into multiple sub-pixel units, and each sub-pixel unit corresponds to a kind of color Sub-pixel unit, sub-pixel unit can be green sub-pixels, red sub-pixel or blue subpixels.First in the present embodiment The second opening that the first opening and the second black matrix 12 that black matrix 11 is formed are formed is corresponding with above-mentioned sub-pixel unit respectively, uses In filling quantum dot layer.
Specifically, in the first opening of the first black matrix 11, the first opening corresponding with the green sub-pixels of display panel It is inside filled with the first green quantum dot layer 111, the sub- picture of red for blue light backlight to be converted to green display, with display panel It is filled with the first red quantum dot layer 112 in corresponding first opening of element, for blue light backlight to be converted to red display;And the In second opening of two black matrix 12, filled with the second green amount in the second opening corresponding with the green sub-pixels of display panel Son point layer 121, for blue light backlight to be converted to green display, in the second opening corresponding with the red sub-pixel of display panel Filled with the second red quantum dot layer 122, for blue light backlight to be converted to red display.Therefore, underlay substrate 10 two sides The color of colored quantum dot film is mutual corresponding.Also, the first opening and the second opening correspond and in underlay substrates 10 On orthographic projection be overlapped, therefore drop shadow spread of the same color colour quantum dot film of 10 two sides of underlay substrate on underlay substrate 10 Be it is corresponding, guarantee the color display effect of color membrane substrates.
Above-mentioned color membrane substrates, by being respectively formed the first black matrix 11 and the second black matrix 12 in 10 two sides of underlay substrate, And first black matrix 11 the first opening it is corresponding with the second opening of the second black matrix 12, and with corresponding with the color of display panel Mode in the first opening and the second opening filling color quantum dot layer increase compared to existing quantum dot color membrane substrates The thickness of quantum stippling film in entire color membrane substrates, in addition, the first black matrix 11 and second black matrix 12 are correspondingly arranged, into One step prevents blue light backlight light leakage, to reduce the transmitance of blue light, improves conversion ratio and the entirety display of blue light Colour gamut.
It should be noted that the first black matrix 11 side vertical with underlay substrate 10 has lyophily, deviate from substrate base The surface of plate 10 has lyophobicity, and being conducive to that quantum dot layer is filled into two will not be residual in the first opening of the first black matrix 11 formation It is left to the surface that the first black matrix 11 deviates from underlay substrate 10.The appearance of this performance is because in the material of the first black matrix 11 Added with the lesser substance of surface tension, during the first black matrix 11 solidifies and dries, which is relatively easily accumulated in First black matrix 11 deviates from the surface of underlay substrate 10, enables the first black matrix 11 away from the surface on the surface of underlay substrate 10 Less than the first black matrix 11 perpendicular to the surface energy of the side of underlay substrate 10.
Certainly, the second black matrix 12 is identical as the material of the first black matrix 11, structure and performance are similar, i.e. the second black matrix 12 sides vertical with underlay substrate 10 have lyophily, have lyophobicity away from the surface of underlay substrate 10.
Specifically, along the direction perpendicular to underlay substrate 10, the height of the first black matrix 11 is 4-8 μm, and/or, second The height of black matrix 12 is 4-8 μm.Suitable first black matrix, 11 height and 12 height of the second black matrix is selected to can satisfy coloured silk The use demand of ilm substrate.
In above-mentioned color membrane substrates, the first opening and the second opening corresponding with the blue subpixels of display panel are not needed pair Blue light backlight is handled, it is only necessary to blue light is issued, therefore can be vacant, so that blue light backlight is directly through the first opening and second Opening projects.
As a preferred embodiment, scattering particles is filled in the first opening opposite with blue subpixels in display panel 13, and/or, scattering particles 13 is filled in the second opening opposite with blue subpixels in display panel.13 energy of scattering particles It is enough preferably to reflect away blue light backlight, effective diffuse reflection effect is played, display effect is improved.
Certainly, above-mentioned color membrane substrates further include the color film encapsulated layer 14 for being set to 10 two sides of underlay substrate.Color film encapsulated layer 14 can cover the first black matrix 11 of 10 two sides of underlay substrate, the second black matrix 12 and all quantum stippling film layers.
Based on same invention thinking, the present invention also provides a kind of display panels, as shown in Fig. 2, the display panel includes Backlight assembly and such as any color membrane substrates provided by the above embodiment, backlight assembly docks with color membrane substrates and passes through encapsulation Construction packages.
Wherein, backlight assembly is blue light backlight assembly, for emitting blue light.It can be blue light organic emissive diode, indigo plant The luminescent devices such as the miniature Organic Light Emitting Diode of light-emitting diode, blue light.
By taking blue light organic emissive diode as an example, the backlight assembly in the present embodiment includes backlight substrate 20, backlight substrate 20 are disposed with backlight device 21 and backlight package layer 22 for docking the side of color membrane substrates.Wherein backlight device 21 is thin Film transistor device, backlight package layer 22 are packaging film.
After color membrane substrates and backlight assembly dock, the color film encapsulated layer 14 of color membrane substrates and the backlight package of backlight assembly Pass through 40 gluing of adhesive glue between layer 22.
Wherein, the encapsulating structure for encapsulating color membrane substrates and backlight assembly includes packaging adhesive frame 30;Packaging adhesive frame 30 is used In the side of encapsulation color membrane substrates and backlight assembly, total is encapsulated.
In addition, the display panel further includes being set to color membrane substrates away from the protective film 50 of backlight assembly side and/or circle Polaroid.Wherein, as shown in Fig. 2, the display panel is provided only with protective film 50 away from backlight assembly side in color membrane substrates.
In addition, the embodiment of the present invention also provides a kind of preparation method of display panel, as shown in figure 3, being used to prepare above-mentioned Display panel.The preparation method is done to be discussed in detail in conjunction with Fig. 4 a to Fig. 4 i:
S1: first black matrix 11 with multiple first openings is formed in a side surface of underlay substrate 10;
Specifically, black matrix photosensitive material is coated with by way of spin coating and blade coating on underlay substrate 10, to substrate base Plate 10 carries out preceding baking, and then it is aobvious to carry out mask plate exposure for 10 side of underlay substrate to above-mentioned with black matrix photosensitive material Shadow, baking handles to obtain the first black matrix 11 after then carrying out, and structure is as shown in fig. 4 a.
S2: it is black that second with multiple second openings is formed in the side surface that underlay substrate 10 deviates from the first black matrix 11 Matrix 12, the second opening is corresponded with the first opening and orthographic projection of first opening on underlay substrate 10 exists with the second opening Orthographic projection on underlay substrate 10 is overlapped;
Specifically, after step S1, by 10 turn-over of underlay substrate, using technique identical with step S1 in underlay substrate 10 The second black matrix 12 is formed away from a side surface of the first black matrix 11, structure is as shown in Figure 4 b.
At this point, the first black matrix 11 and the second black matrix 12 of 10 two sides of underlay substrate complete, along perpendicular to substrate The direction of substrate 10, the height of the first black matrix 11 can be 4-8 μm, and the height of the second black matrix 12 may be 4-8 μm.
S3: protective film 50 is formed in the side surface that underlay substrate 10 is provided with the first black matrix 11, is obtained such as Fig. 4 c institute The structure shown;
S4: the green quantum dot layer 121 of filling second into the second opening corresponding with the green sub-pixels of display panel, to The second red quantum dot layer 122 is filled in the second opening corresponding with the red sub-pixel of display panel.
Specifically, using the mode of inkjet printing according to the green quantum dot layer 121 of above-mentioned corresponding relationship filling second and the Two red quantum dot layers 122.Also, it in this step, is filled out into the second opening corresponding with the green sub-pixels of display panel The second green quantum dot layer 121 is filled, fills the second amount of red into the second opening corresponding with the red sub-pixel of display panel It further include filling scattering particles 13, solidification into the second opening corresponding with the blue subpixels of display panel when son point layer 122 Structure as shown in figure 4d is obtained afterwards.
S5: package substrate substrate 10 is provided with the side of the second black matrix 12;
Specifically, coloured silk is formed by chemical vapor deposition process in the side that underlay substrate 10 is provided with the second black matrix 12 Film encapsulated layer 14, the side that underlay substrate 10 is provided with the second black matrix 12 complete the production, and obtain structure as shown in fig 4e.
S6: the side that underlay substrate 10 is provided with the second black matrix 12 is docked with backlight assembly;
Specifically, underlay substrate 10, which is provided with the side of the second black matrix 12 and backlight assembly, has the one of backlight device 21 Box, the i.e. color film encapsulated layer 14 of 10 side of underlay substrate are docked with the backlight package layer 22 of backlight assembly and using adhesive glues side 40 bondings, the side that underlay substrate 10 is provided with the first black matrix 11 deviate from backlight assembly outwardly, and structure is as shown in fig. 4f.
S7: removal protective film 50;The side that underlay substrate 10 is provided with the first black matrix 11 is arranged in protective film 50, removal The structure such as Fig. 4 g is obtained after protective film 50.
S8: the green quantum dot layer 111 of filling first into the first opening corresponding with the green sub-pixels of display panel, to The first red quantum dot layer 112 is filled in the first opening corresponding with the red sub-pixel of display panel;
Specifically, using the mode of inkjet printing according to the green quantum dot layer 111 of above-mentioned corresponding relationship filling first and the One red quantum dot layer 112, also, the first green of filling amount into the first opening corresponding with the green sub-pixels of display panel Son point layer 111, when filling the first red quantum dot layer 112 into the first opening corresponding with the red sub-pixel of display panel, Further include filling scattering particles 13 into the first opening corresponding with the blue subpixels of display panel, is obtained after solidification such as Fig. 4 h Shown in structure.
S9: the side and underlay substrate 10 of package substrate substrate 10 and backlight assembly deviates from the side of backlight assembly.
Specifically, including being encapsulated the side of underlay substrate 10 and backlight assembly using packaging adhesive frame 30, using chemical gas Phase deposition method forms color membrane substrates encapsulated layer away from the side of backlight assembly in underlay substrate 10, obtains knot as shown in figure 4i Structure.
In addition, further including the color membrane substrates encapsulation in underlay substrate 10 away from the side of backlight assembly after step S9 The surface of layer increases rotatory polarization piece and/or protective film 50, and Fig. 2 shows deviate from the coloured silk of the side of backlight assembly in underlay substrate 10 The surface of ilm substrate encapsulated layer increases the case where protective film 50.
As can be seen that there is the quantum stippling film thickness for increasing total by the display panel prepared to preparation method Degree can reduce the transmitance of blue light, and then improve the conversion ratio and entirety display colour gamut of blue light.
Obviously, those skilled in the art can carry out various modification and variations without departing from this hair to the embodiment of the present invention Bright spirit and scope.In this way, if these modifications and changes of the present invention belongs to the claims in the present invention and its equivalent technologies Within the scope of, then the present invention is also intended to include these modifications and variations.

Claims (10)

1. a kind of color membrane substrates characterized by comprising
Underlay substrate;
It is set to the first black matrix of one side surface of underlay substrate, first black matrix is formed with the son with display panel One-to-one first opening of pixel unit, wherein be filled in the first opening corresponding with the green sub-pixels of display panel First green quantum dot layer, the first opening corresponding with the red sub-pixel of display panel is interior to be filled with the first red quantum dot Layer;
It is set to the second black matrix that the underlay substrate deviates from one side surface of the first black matrix, the second black matrix shape One-to-one second opening of first opening described in Cheng Youyu, wherein corresponding with the green sub-pixels of display panel second opens Filled with the second green quantum dot layer in mouth, the second opening corresponding with the red sub-pixel of display panel is interior red filled with second Color quantum dot layer;
In every mutual corresponding first opening of a pair and second opening, first opening is on the underlay substrate Orthographic projection be overlapped with the orthographic projection of second opening on the underlay substrate.
2. color membrane substrates according to claim 1, which is characterized in that described along the direction perpendicular to the underlay substrate The height of first black matrix is 4-8 μm, and/or, the height of second black matrix is 4-8 μm.
3. color membrane substrates according to claim 1, which is characterized in that corresponding with the blue subpixels of display panel described Scattering particles is filled in first opening, and/or, filling in second opening corresponding with the blue subpixels of display panel There is scattering particles.
4. color membrane substrates according to claim 1, which is characterized in that further include the coloured silk for being set to the underlay substrate two sides Film encapsulated layer.
5. a kind of display panel, which is characterized in that including backlight assembly and such as color film of any of claims 1-4 Substrate;
The backlight assembly is docked with the color membrane substrates and is encapsulated by encapsulating structure.
6. display panel according to claim 5, which is characterized in that the backlight assembly includes backlight substrate, the back The side that photopolymer substrate is used to dock the color membrane substrates is disposed with backlight device and backlight package layer.
7. display panel according to claim 5, which is characterized in that the encapsulating structure includes packaging adhesive frame;
The packaging adhesive frame is used to encapsulate the side of the color membrane substrates and the backlight assembly.
8. display panel according to claim 5, which is characterized in that further include being set to the color membrane substrates away from described The protective film and/or rotatory polarization piece of backlight assembly side.
9. a kind of preparation method of display panel characterized by comprising
First black matrix with multiple first openings is formed in a side surface of underlay substrate;
Second black matrix with multiple second openings, institute are formed away from a side surface of first black matrix in underlay substrate State the second opening corresponded with first opening and first orthographic projection of the opening on the underlay substrate with it is described Orthographic projection of second opening on the underlay substrate is overlapped
Protective film is formed in the side surface that the underlay substrate is provided with first black matrix;
The green quantum dot layer of filling second into second opening corresponding with the green sub-pixels of display panel, to display The second red quantum dot layer is filled in corresponding second opening of the red sub-pixel of panel;
Encapsulate the side that the underlay substrate is provided with second black matrix;
The side that the underlay substrate is provided with second black matrix is docked with backlight assembly;
Remove the protective film;
The green quantum dot layer of filling first into the first opening corresponding with the green sub-pixels of display panel, to display panel Red sub-pixel it is corresponding first opening in fill the first red quantum dot layer;
The side and the underlay substrate for encapsulating the underlay substrate and the backlight assembly deviate from the one of the backlight assembly Side.
10. preparation method according to claim 9, which is characterized in that the green sub-pixels pair to display panel The green quantum dot layer of filling second in the second opening answered, is filled out into the second opening corresponding with the red sub-pixel of display panel It further include the filling scattering grain into the second opening corresponding with the blue subpixels of display panel when filling the second red quantum dot layer Son;
And/or the green quantum dot layer of filling first into the first opening corresponding with the green sub-pixels of display panel, to It is corresponding with the red sub-pixel of display panel first opening in filling the first red quantum dot layer when, further include to display surface Scattering particles is filled in corresponding first opening of the blue subpixels of plate.
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