CN207425922U - A kind of anode grid substrate structure for printing OLED display screen - Google Patents
A kind of anode grid substrate structure for printing OLED display screen Download PDFInfo
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- CN207425922U CN207425922U CN201721358560.XU CN201721358560U CN207425922U CN 207425922 U CN207425922 U CN 207425922U CN 201721358560 U CN201721358560 U CN 201721358560U CN 207425922 U CN207425922 U CN 207425922U
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- Prior art keywords
- grid substrate
- layer
- anode grid
- anode
- sub
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Abstract
The utility model discloses a kind of anode grid substrate structures for printing OLED display screen, including the anode grid substrate with anode metal, multiple pixel defining layers are provided in anode grid substrate, sub-pixel hole is formed between two pixel defining layers, the anode metal be arranged in anode grid substrate on the corresponding position in sub-pixel hole, an organic function layer is provided in sub-pixel hole, covered with a soluble fluorine-containing insulating layer in the pixel defining layer.Anode grid substrate structure provided by the utility model, its by the pixel defining layer in anode grid substrate covered with a soluble fluorine-containing insulating layer, so as to be effectively increased the depth for increasing sub-pixel hole on substrate, and the surface of soluble fluorine-containing insulating layer can be very low, so as to solve the problems, such as easily to overflow and be mixed with each other existing for the drop in inkjet printing RGB luminescent layer very well, so that the drop of inkjet printing can form RGB luminescent layer well in sub-pixel hole.
Description
Technical field
The utility model is related to OLED display screen technical fields, and in particular to a kind of anode grid substrate for printing OLED display screen
Structure.
Background technology
Organic Light Emitting Diode（OLED）It is a kind of important display technology, traditional OLED display screen plates work using pressure decatizing
Prepared by skill, it is necessary to use high-precision vapor deposition mask plate（FMM, Fine Metal Mask）Define RGB sub-pixel, therefore
It is complex process, with high costs.
At present, the overall structure diagram of the pixel of single printing OLED display screen as shown in Figure 1, print OLED skills at present
Art is usually in 1. anode grid substrate, is sequentially prepared 2. 3. 4. 5. each layer, finally encapsulates.Wherein core difficult point is ink-jet
3. RGB luminescent layer is printed, the drop of inkjet printing is easily overflowed and is mixed with each other, so that the definition of RGB sub-pixel
Failure.As shown in Figure 2, why the drop of inkjet printing easily overflows and is mixed with each other the structure of existing anode grid substrate,
It is because the pixel defining layer in anode grid substrate is limited to technique in the prior art, pixel defining layer has two aspects to be difficult to meet spray
The needs of ink printing：（1）Its thickness is difficult to increase, and causes sub-pixel hole that can accommodate the finite volume of drop；（2）Its material（It is poly-
Acid imide）Affine with drop can be difficult to reduce, and drop is caused easily to spread.Therefore, it is necessary to existing anode grid substrate into
Row improves.
Utility model content
For overcome the deficiencies in the prior art and there are the problem of, the utility model provide it is a kind of print OLED display screen sun
Electrode substrate structure using anode grid substrate structure provided by the utility model, may be such that during OLED display screen is prepared, and spray
The drop of ink printing can form RGB luminescent layer well in sub-pixel.
The utility model is achieved through the following technical solutions：
A kind of anode grid substrate structure for printing OLED display screen, including the anode grid substrate with anode metal, anode grid substrate
On be provided with multiple pixel defining layers, sub-pixel hole is formed between two pixel defining layers, the anode metal is arranged at anode
With on the corresponding position in sub-pixel hole, an organic function layer, the pixel defining layer are provided in the sub-pixel hole on substrate
On covered with a soluble fluorine-containing insulating layer.
Preferably, the soluble fluorine-containing insulating layer is fluororesin insulating layer；It is preferred that the thickness of the fluororesin insulating layer
It spends for 50-2000nm.
It is preferred that the pixel defining layer is in up-narrow and down-wide trapezoidal shape；The organic function layer include hole injection layer,
In hole transmission layer and electronic barrier layer any one or it is arbitrary a variety of.
Anode grid substrate structure provided by the utility model, by the pixel defining layer in anode grid substrate covered with one
Soluble fluorine-containing insulating layer, so as to be effectively increased the depth for increasing sub-pixel hole on substrate, and soluble fluorine-containing insulating layer
It surface can be very low（Relatively dredge solution）, easily overflow existing for the drop in inkjet printing RGB luminescent layer so as to solve very well
The problem of going out and being mixed with each other shines so that the drop of inkjet printing can form RGB well in sub-pixel hole
Layer.
Description of the drawings
Fig. 1 is the structure diagram of single OLED pixel in the prior art.
Fig. 2 is the structure diagram of anode grid substrate in the prior art.
The structure diagram of anode grid substrate described in Fig. 3 the utility model embodiments.
Wherein, the drawing reference numeral in attached drawing 2-3 is：1- anode grid substrates, 2- anode metals, 3- organic function layers, 4- pixels
Definition layer, 5- sub-pixels hole, 6- soluble fluorine-containing insulating layers.
Specific embodiment
For the ease of the understanding of those skilled in the art, the utility model is made below in conjunction with the drawings and specific embodiments into
One step is described in detail.
As shown in Figure 3, a kind of anode grid substrate structure for printing OLED display screen, including the anode with anode metal 2
Substrate 1 is provided with multiple pixel defining layers 4 in anode grid substrate, and sub-pixel hole 5, the sun are formed between two pixel defining layers
Pole metal is arranged in anode grid substrate on the corresponding position in sub-pixel hole, an organic function layer is provided in the sub-pixel hole
3, covered with a soluble fluorine-containing insulating layer 6 in the pixel defining layer.
Since soluble fluorine-containing insulating layer 6 covers original pixel defining layer 4, being equivalent to makes the increase of its thickness and surface
It can reduce, therefore solution drop can be steadily limited in sub-pixel hole, will not be overflowed, so as to well solve the prior art
The defects of solution drop of middle inkjet printing easily overflows and is mixed with each other and causes the definition failure of RGB sub-pixel.The present embodiment
In, the soluble fluorine-containing insulating layer is preferably fluororesin insulating layer, and the thickness of the fluororesin insulating layer is preferably 50-
2000nm。
In a wherein preferred embodiment, the pixel defining layer 4 is in up-narrow and down-wide trapezoidal shape；Organic work(
Ergosphere includes any one in hole injection layer, hole transmission layer and electronic barrier layer or arbitrary a variety of, specifically can root
It is selected according to actual needs；.
Anode grid substrate structure provided by the utility model, by the pixel defining layer in anode grid substrate covered with one
Soluble fluorine-containing insulating layer, so as to be effectively increased the depth for increasing sub-pixel hole on substrate, and soluble fluorine-containing insulating layer
It surface can be very low（Relatively dredge solution）, easily overflow existing for the drop in inkjet printing RGB luminescent layer so as to solve very well
The problem of going out and being mixed with each other shines so that the drop of inkjet printing can form RGB well in sub-pixel hole
Layer.
Above-described embodiment is the preferable realization method of the utility model, is not the restriction to the utility model, not
Depart from the utility model inventive concept on the premise of, it is any it is obvious replacement the scope of protection of the utility model it
It is interior.
Claims (5)
1. a kind of anode grid substrate structure for printing OLED display screen, including the anode grid substrate with anode metal, in anode grid substrate
Multiple pixel defining layers are provided with, sub-pixel hole is formed between two pixel defining layers, the anode metal is arranged at anode base
With on the corresponding position in sub-pixel hole, an organic function layer is provided in the sub-pixel hole on plate, it is characterised in that：The picture
Covered with a soluble fluorine-containing insulating layer on plain definition layer.
2. anode grid substrate structure according to claim 1, it is characterised in that：The soluble fluorine-containing insulating layer is fluororesin
Insulating layer.
3. anode grid substrate structure according to claim 2, it is characterised in that：The thickness of the fluororesin insulating layer is 50-
2000nm。
4. anode grid substrate structure according to claim 1, it is characterised in that：The pixel defining layer is in up-narrow and down-wide ladder
Shape.
5. the anode grid substrate structure according to any one in Claims 1 to 4, it is characterised in that：The organic function layer
Including any one in hole injection layer, hole transmission layer and electronic barrier layer or arbitrary a variety of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721358560.XU CN207425922U (en) | 2017-10-20 | 2017-10-20 | A kind of anode grid substrate structure for printing OLED display screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721358560.XU CN207425922U (en) | 2017-10-20 | 2017-10-20 | A kind of anode grid substrate structure for printing OLED display screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207425922U true CN207425922U (en) | 2018-05-29 |
Family
ID=62312161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721358560.XU Expired - Fee Related CN207425922U (en) | 2017-10-20 | 2017-10-20 | A kind of anode grid substrate structure for printing OLED display screen |
Country Status (1)
| Country | Link |
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| CN (1) | CN207425922U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110610976A (en) * | 2019-09-24 | 2019-12-24 | 合肥京东方卓印科技有限公司 | Display substrate, preparation method thereof and display device |
-
2017
- 2017-10-20 CN CN201721358560.XU patent/CN207425922U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110610976A (en) * | 2019-09-24 | 2019-12-24 | 合肥京东方卓印科技有限公司 | Display substrate, preparation method thereof and display device |
| CN110610976B (en) * | 2019-09-24 | 2022-01-25 | 合肥京东方卓印科技有限公司 | Display substrate, preparation method thereof and display device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180529 Termination date: 20191020 |