CN110047894A - Display panel and preparation method thereof - Google Patents
Display panel and preparation method thereof Download PDFInfo
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- CN110047894A CN110047894A CN201910333035.XA CN201910333035A CN110047894A CN 110047894 A CN110047894 A CN 110047894A CN 201910333035 A CN201910333035 A CN 201910333035A CN 110047894 A CN110047894 A CN 110047894A
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- pixel
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- padding
- display panel
- pixel definition
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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
- H10K59/122—Pixel-defining structures or layers, e.g. banks
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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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- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Electroluminescent Light Sources (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The present invention provides a kind of display panel and preparation method thereof, which includes: array substrate, the padding layer being successively set in array substrate, pixel defining layer, pixel layer；Pixel layer includes the sub-pixel of multiple and different colors；Pixel defining layer includes multiple pixel definition portions, and pixel definition portion is arranged between corresponding two adjacent subpixels, for obstructing two adjacent subpixels；Padding layer includes multiple padding section, and padding section is arranged between corresponding pixel definition portion and array substrate, is used for padded pixel definition portion, improves the yields of display panel.
Description
Technical field
The present invention relates to the manufactures of field of display technology more particularly to display device, and in particular to display panel and its system
Make method.
Background technique
AMOLED (Active Matrix Organic Light Emitting Diode, active matrix organic light-emitting two
Pole pipe panel) traditional liquid crystal display panel is compared, with reaction speed is fast, contrast is high, visual angle is wide, high luminous efficiency, colour gamut are wide, oneself
The features such as shining, various advantages make it have good application prospect.
In the prior art, as shown in fig. 6, AMOLED display panel 200 includes array substrate 201,202 and of multiple sub-pixels
Pixel defining layer 203, wherein adjacent subpixels 202 are made of the ink of different colours, and pixel defining layer 203 is for separating phase
Adjacent sub-pixel 202, colour mixture when avoiding making sub-pixel between the ink of different colours.But the light emitting layer thickness of AMOLED compared with
Small, shine layer device and cathode overlap joint for convenience, and the thickness of pixel defining layer is typically small, therefore for the ink of different colours
For water, still there is biggish colour mixture risk.
Therefore, it is necessary to provide a kind of display panel to solve to deposit between the ink of AMOLED different colours in the prior art
Overflow and colour mixture the problem of.
Summary of the invention
The purpose of the present invention is to provide a kind of display panels and preparation method thereof, can be with padded pixel definition portion, into one
The sub-pixel of step isolation different colours, improves the yields of display panel.
The embodiment of the present invention provides a kind of display panel, comprising: array substrate, the padding being arranged in the array substrate
Layer, the pixel defining layer being arranged in the padding layer and the pixel layer being arranged in the pixel defining layer；
The pixel layer includes the sub-pixel of multiple and different colors；
The pixel defining layer includes multiple pixel definition portions, and the pixel definition portion is arranged in corresponding two adjacent sub- picture
Between element, the pixel definition portion is for obstructing two adjacent subpixels；
The padding layer includes multiple padding section, and the padding section is arranged in the corresponding pixel definition portion and the battle array
Between column substrate, the padding section is used for the padded pixel definition portion.
In one embodiment, the pixel definition portion includes the first pixel definition portion, the setting of first pixel definition portion
Between the sub-pixel of different colours, the padding section is arranged between first pixel definition portion and the array substrate.
In one embodiment, the composition material of the padding layer is hydrophilic material.
In one embodiment, the composition material of the pixel defining layer is hydrophobic material.
In one embodiment, the height of the padding section is less than the height in corresponding pixel definition portion.
In one embodiment, the display panel further includes anode layer, anode layer setting in the array substrate and
Between the padding layer.
In one embodiment, the composition material of the anode layer is reflecting material or transmission material.
In one embodiment, the sectional view in the pixel definition portion is trapezoidal, and the trapezoidal upper bottom edge length is less than
Bottom edge lengths.
In one embodiment, the sectional view of the padding section is trapezoidal, and the trapezoidal upper bottom edge length is less than bottom
Edge lengths, and the upper bottom edge length of the padding section is more than or equal to the bottom edge lengths in the corresponding pixel definition portion.
The embodiment of the present invention also provides a kind of production method of display panel, comprising:
Array basal plate is provided；
Padding layer is formed in the array substrate, the padding layer includes multiple padding section；
Pixel defining layer is formed in the padding layer, the pixel defining layer includes multiple pixel definition portions, wherein institute
It states pixel definition portion to be arranged in corresponding padding section, the padding section is used for the padded pixel definition portion；
Pixel layer is formed in the pixel defining layer, the pixel layer includes the sub-pixel of multiple and different colors, wherein
The pixel definition portion is arranged between corresponding two adjacent subpixels, and the pixel definition portion is for obstructing described two adjacent sons
Pixel.
The present invention provides a kind of display panel and preparation method thereof, padding layer is set in the display panel, wherein should
Padding layer is arranged between array substrate and pixel defining layer, is used for the padded pixel defining layer, it is ensured that different colours
Non-mixed color and overflow phenomena between ink, can be improved the yields of display panel.
Detailed description of the invention
Below by attached drawing, invention is further explained.It should be noted that the accompanying drawings in the following description is only
Explanation some embodiments of the present invention are only for not make the creative labor for those skilled in the art
Under the premise of, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the schematic top plan view of display panel provided in an embodiment of the present invention.
Fig. 2 is the diagrammatic cross-section of display panel provided in an embodiment of the present invention.
Fig. 3 is another schematic top plan view of display panel provided in an embodiment of the present invention.
Fig. 4 is another diagrammatic cross-section of display panel provided in an embodiment of the present invention.
Fig. 5 is the flow chart of the production method of display panel provided in an embodiment of the present invention.
Fig. 6 is the diagrammatic cross-section of existing display panel.
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
Whole description.Obviously, 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, those skilled in the art's every other implementation obtained without creative efforts
Example, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that, the orientation or position of the instructions such as term " on ", "lower", " side "
Relationship be based on the orientation or positional relationship shown in the drawings, wherein "upper" is surface above object, refer specifically to generation just on
Side, oblique upper, upper surface are ok, as long as occuping on object level, and " surface " is that two objects of reference are mutual
It directly contacts, the above orientation or positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than indication or suggestion
Signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to this
The limitation of invention.
It should be noted that term " thickness " is neutral words, do not indicate to be biased to thickness or thin, it is merely meant that there are a references
Value, numerical value is uncertain, depending on meeting according to the actual situation.
In addition, it should also be noted that, attached drawing offer is only and Relationship Comparison of the present invention close structure and/or step
Suddenly, some and little details of inventive relationship is omitted, it is therefore intended that simplify attached drawing, keeps inventive point very clear, rather than table
Bright device in practice and/or method are exactly and attached drawing is the same, not as the limitation of device in practice and/or method.
The present invention provides a kind of display panel, and the display panel includes embodiment and the reality as shown in figures 1-4
Apply the combination of example.
As shown in figures 1-4, display panel 100 includes array substrate 101, the padding being arranged in the array substrate 101
Layer 102, the pixel defining layer 103 being arranged in the padding layer 102 and the pixel layer being arranged in the pixel defining layer
104.Wherein, the pixel layer 104 includes the sub-pixel 1041 of multiple and different colors, and the pixel defining layer 103 includes multiple
Pixel definition portion 1031, the pixel definition portion 1031 are arranged between corresponding two adjacent subpixels 1041, and the pixel is fixed
Adopted portion 1031 is for obstructing two adjacent subpixels 1041；The padding layer 102 includes multiple padding section 1021, the padding
Portion 1021 is arranged between the corresponding pixel definition portion 1031 and the array substrate 101, and the padding section 1021 is used for
The padded pixel definition portion 1031.
In one embodiment, as shown in Figure 2,4, the display panel 100 further includes anode layer 107, the anode layer 107
It is arranged between the array substrate 101 and the padding layer 102.Wherein it is possible to pass through physical vapour deposition (PVD)-development-wet etching
Process form the anode layer 107, the material of the anode layer 107 can be reflecting material or transmission material.Specifically
, when display panel 100 is top light emitting-type, the anode layer 107 is made of reflecting material；When display panel 100 is bottom
When light emitting-type, the anode layer 107 is made of transmission material.It is understood that the sub-pixel 1041 can be formed in
Between the adjacent pixel definition portion 1031 on the anode layer 107.
In one embodiment, the sub-pixel of the same color can along the display panel 100 short axle 105 or
The arrangement of 106 direction of long axis.Such as in Fig. 1, pixel layer 104 includes red R sub-pixel, green G sub-pixel, blue B sub-pixel,
The sub-pixel 1041 of the same color is arranged along 105 direction of short axle of the display panel 100；For another example for example in Fig. 3,
The sub-pixel of the same color is arranged along 106 direction of long axis of the display panel 100.
Specifically, the pixel definition portion 1031 includes the first pixel definition portion 10311, first pixel definition portion
10311 are arranged between the sub-pixel 1041 of different colours, and the padding section 1021 is arranged in first pixel definition portion
Between 10311 and the array substrate 101.Wherein, first pixel definition portion 10311 is for obstructing described two adjacent differences
Color sub-pixels 1041, the padding section 1021 are used for padded first pixel definition portion 10311.As shown in Figure 2,4, with three
For the sub-pixel of column different colours, first pixel definition portion 10311 may include that adjacent red R sub-pixel is arranged in
The strip shape body between green G sub-pixel and blue B sub-pixel between green G sub-pixel, adjacent, correspondingly, the padding
Portion 1021 may include the padding item 1021 being arranged in below corresponding first pixel definition portion 10311.
In one embodiment, as shown in Figure 2,4, the sectional view in the pixel definition portion 1031 can be trapezoidal, described
Trapezoidal upper bottom edge length is less than bottom edge lengths.The sectional view of the padding section 1021 may be it is trapezoidal, it is described trapezoidal
Upper bottom edge length be less than bottom edge lengths, and the upper bottom edge length of the padding section 1021 be more than or equal to the corresponding picture
The bottom edge lengths in plain definition portion.Specifically, as shown in Figure 2,4, the section in the pixel definition portion 1031 and padding section 1021
The inclination angle 108 of the two sides of figure can be set to be less than or equal to 60 °, wherein the inclination angle can be preferably 1 °~60 °.In this way,
When being coated with liquid paint, liquid paint can be along the past sun in the corresponding pixel definition portion 1031 and the side of padding section 1021
Pole layer 107 trickles, can also be to avoid colour mixture mutual between the pigment of adjacent different colours and stream when pigment application is thicker
It overflows.
Particularly, the height of the padding section 1021 is less than the height in the pixel definition portion 1031.Such as: it can be set
The pixel definition portion 1031 with a thickness of 1um or so, if the padding section 1021 with a thickness of 0.2um, can be increased phase
About 20% ink receptive ability between adjacent pixel definition portion 1031；If the padding section 1021 with a thickness of 0.5um
Increase the ink receptive ability that adjacent pixel defines between portion 1031 about 50%.In this way, when the material in coating pixel definition portion 1031
When material, since 1021 thickness of padding section is smaller and the two sides of the sectional view of the padding section 1021 and anode layer 107
Angle is also smaller, and the material in the pixel definition portion 1031 will not trickle toward anode layer 107 and pixel defining layer 103 is caused to damage
It loses.
Particularly, the material of the padding layer 102 can be hydrophilic material.Optionally, the padding layer 102 can adopt
It is made of organic photoresist, the forming method of the padding layer 102 can refer to yellow light process.It is understood that described
Pixel definition portion 1031 is hydrophobic material, and the material of padding layer 102 is hydrophilic material, and the main component of liquid paint is
Polar solvent, good hydrophilic property.In this way, when being coated with liquid paint, the corresponding padding section 1021 compares pixel definition portion
1031 can adsorb liquid paint, so that liquid paint is preferably spread on the anode layer 107, while the pixel definition
Liquid paint will not be adsorbed in portion 1031, avoid liquid paint and overflow along the first pixel definition portion 10311 and cause difference
Mutual colour mixture and slime flux between the pigment of color.
The present invention also provides a kind of production methods of display panel, with reference to Fig. 5, which comprises
S101: array basal plate is provided；
The array substrate includes a substrate and the tft layer that patterned surface is formed on the substrate, institute
The material for stating tft layer can be using for example: in low-temperature polysilicon silicon materials, oxide material or amorphous silicon material extremely
A kind of few material preparation；
S102: forming padding layer in the array substrate, and the padding layer includes multiple padding section；
Before forming the padding layer, further includes:
Anode layer is formed in the array substrate；
Wherein it is possible to form the anode layer, the anode layer by physical vapour deposition (PVD)-development-wet etching process
Material can be reflecting material or transmission material.Specifically, the anode layer uses when display panel is top light emitting-type
Reflecting material production；When display panel is bottom light emitting-type, the anode layer is made of transmission material；
S103: forming pixel defining layer in the padding layer, and the pixel defining layer includes multiple pixel definition portions,
Described in pixel definition portion be arranged in corresponding padding section, the padding section be used for the padded pixel definition portion；
S104: forming pixel layer in the pixel defining layer, and the pixel layer includes the sub-pixel of multiple and different colors,
Wherein the pixel definition portion is arranged between corresponding two adjacent subpixels, and the pixel definition portion is for obstructing the two-phase
Adjacent sub-pixel.
Specifically, the padding section is arranged between the corresponding pixel definition portion and the anode layer, the padding
The material of layer can be hydrophilic material.
Further, the pixel layer includes the sub-pixel of different colours, and same color sub-pixel can be along the battle array
The long axis or short-axis direction of column substrate are formed.Such as: if same color sub-pixel is formed along the long axis of the array substrate,
Then before forming the pixel layer, the padding section is formed also along the long axis of the array substrate, and the padding section
It is formed between the sub-pixel of adjacent different colours, is used for the padded corresponding pixel definition portion, prevents different face
Mutual colour mixture or slime flux between the pigment of color.
In one embodiment, the sectional view in the pixel definition portion can be trapezoidal, the trapezoidal upper bottom edge length
Less than bottom edge lengths.The sectional view of the padding section may be it is trapezoidal, the trapezoidal upper bottom edge length be less than bottom
Edge lengths, and the upper bottom edge length of the padding section is more than or equal to the bottom edge lengths in the corresponding pixel definition portion.Tool
Body, the inclination angle of the two sides of the sectional view of the pixel definition portion and padding section can be set less than or equal to 60 °, wherein described
Inclination angle can be preferably 1 °~60 °.In this way, liquid paint can be along the corresponding pixel definition when being coated with liquid paint
Portion and the side of padding section are trickled toward anode layer, can also be to avoid the pigment of adjacent different colours when pigment application is thicker
Between mutually colour mixture and slime flux.
Particularly, the thickness of the padding section is much smaller than the thickness in the pixel definition portion.Such as: the picture can be set
Plain definition portion with a thickness of 1um or so, if the padding section with a thickness of 0.2um, can be increased adjacent pixel define portion it
Between about 20% ink receptive ability；If the padding section with a thickness of 0.5um, can be increased adjacent pixel and define between portion
About 50% ink receptive ability.In this way, when being coated with the material in pixel definition portion, since the padding section thickness is smaller and institute
The inclination angle for stating the two sides of the sectional view of padding section is also smaller, the material in the pixel definition portion will not toward anode layer trickling and
Pixel defining layer is caused to lose.
Particularly, the material of the padding layer can be hydrophilic material.Optionally, the padding layer can use organic
Photoresist production, the forming method of the padding layer can refer to yellow light process.It is understood that the pixel definition portion
For hydrophobic material, the material of padding layer is hydrophilic material, and the main component of liquid paint is polar solvent, hydrophily
It is good.In this way, when being coated with liquid paint, the corresponding padding section pixel definition portion that compares can attract liquid paint, make
It obtains liquid paint preferably to spread on the anode layer, liquid paint is avoided to overflow and caused not along the first pixel definition portion
With colour mixture mutual between the pigment of color and slime flux.
The present invention provides a kind of display panel and preparation method thereof, padding layer is set in the display panel, wherein should
Padding layer is arranged between array substrate and pixel defining layer, is used for the padded pixel defining layer, it is ensured that different colours
Non-mixed color and overflow phenomena between ink, can be improved the yields of display panel and display device.
It is provided for the embodiments of the invention a kind of structure of display panel and the production method of the display panel above
It is described in detail, used herein a specific example illustrates the principle and implementation of the invention, the above reality
The explanation for applying example is merely used to help understand technical solution of the present invention and its core concept；Those skilled in the art answer
Work as understanding: it is still possible to modify the technical solutions described in the foregoing embodiments, or special to part of technology
Sign is equivalently replaced；And these are modified or replaceed, various embodiments of the present invention that it does not separate the essence of the corresponding technical solution
Technical solution range.
Claims (10)
1. a kind of display panel characterized by comprising array substrate, the padding layer being arranged in the array substrate, setting
In the pixel defining layer in the padding layer and the pixel layer being arranged in the pixel defining layer；
The pixel layer includes the sub-pixel of multiple and different colors；
The pixel defining layer includes multiple pixel definition portions, pixel definition portion setting corresponding two adjacent subpixels it
Between, the pixel definition portion is for obstructing two adjacent subpixels；
The padding layer includes multiple padding section, and the padding section is arranged in the corresponding pixel definition portion and the array base
Between plate, the padding section is used for the padded pixel definition portion.
2. display panel as described in claim 1, which is characterized in that the pixel definition portion includes the first pixel definition portion,
First pixel definition portion is arranged between the sub-pixel of different colours, and the padding section is arranged in first pixel definition
Between portion and the array substrate.
3. display panel as described in claim 1, which is characterized in that the composition material of the padding layer is hydrophilic material.
4. display panel as described in claim 1, which is characterized in that the composition material of the pixel defining layer is hydrophobicity material
Material.
5. display panel as described in claim 1, which is characterized in that the height of the padding section is less than corresponding pixel definition
The height in portion.
6. display panel as described in claim 1, which is characterized in that the display panel further includes anode layer, the anode
Layer is arranged between the array substrate and the padding layer.
7. display panel as claimed in claim 6, which is characterized in that the composition material of the anode layer be reflecting material or
Transmission material.
8. display panel as described in claim 1, which is characterized in that the sectional view in the pixel definition portion is trapezoidal, institute
It states trapezoidal upper bottom edge length and is less than bottom edge lengths.
9. display panel as claimed in claim 8, which is characterized in that the sectional view of the padding section is trapezoidal, the ladder
The upper bottom edge length of shape is less than bottom edge lengths, and the upper bottom edge length of the padding section is more than or equal to the corresponding pixel
The bottom edge lengths in definition portion.
10. a kind of production method of display panel characterized by comprising
Array basal plate is provided；
Padding layer is formed in the array substrate, the padding layer includes multiple padding section；
Pixel defining layer is formed in the padding layer, the pixel defining layer includes multiple pixel definition portions, wherein the picture
Plain definition portion is arranged in corresponding padding section, and the padding section is used for the padded pixel definition portion；
Pixel layer is formed in the pixel defining layer, the pixel layer includes the sub-pixel of multiple and different colors, wherein described
Pixel definition portion is arranged between corresponding two adjacent subpixels, and the pixel definition portion is for obstructing described two adjacent sub- pictures
Element.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910333035.XA CN110047894A (en) | 2019-04-24 | 2019-04-24 | Display panel and preparation method thereof |
| PCT/CN2019/098196 WO2020215513A1 (en) | 2019-04-24 | 2019-07-29 | Display panel and manufacturing method therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910333035.XA CN110047894A (en) | 2019-04-24 | 2019-04-24 | Display panel and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110047894A true CN110047894A (en) | 2019-07-23 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910333035.XA Pending CN110047894A (en) | 2019-04-24 | 2019-04-24 | Display panel and preparation method thereof |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110047894A (en) |
| WO (1) | WO2020215513A1 (en) |
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| CN114122295A (en) * | 2021-05-27 | 2022-03-01 | 友达光电股份有限公司 | Light emitting device |
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Also Published As
| Publication number | Publication date |
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| WO2020215513A1 (en) | 2020-10-29 |
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Application publication date: 20190723 |