CN109378328B - OLED display panel and OLED display device - Google Patents
OLED display panel and OLED display device Download PDFInfo
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- CN109378328B CN109378328B CN201811137786.6A CN201811137786A CN109378328B CN 109378328 B CN109378328 B CN 109378328B CN 201811137786 A CN201811137786 A CN 201811137786A CN 109378328 B CN109378328 B CN 109378328B
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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
- H10K50/805—Electrodes
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- H—ELECTRICITY
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- 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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Abstract
The invention provides an OLED display panel and an OLED display device. The OLED display panel comprises a light emitting unit and a pixel limiting layer, wherein the light emitting unit is arranged on an array substrate, the pixel limiting layer is used for isolating the light emitting unit, and the light emitting unit comprises a first electrode layer, an organic light emitting layer and a second electrode layer which are sequentially stacked on the array substrate; and the second electrode layer also covers the pixel defining layer; the second electrode layer and the pixel limiting layer are provided with mutually embedded bulges and grooves, and the mutually embedded bulges and grooves are used for enhancing the binding force between the second electrode layer and the pixel limiting layer. According to the OLED display panel and the OLED display device, the bonding force between the second electrode layer and the pixel limiting layer is enhanced by the mutual embedding of the bulges and the grooves, the phenomena of peeling or separation and the like of the second electrode layer and the organic light emitting layer when the OLED display panel is bent are avoided, the display effect of the OLED display device is improved, and the service life of the OLED display device is prolonged.
Description
Technical Field
The invention relates to the technical field of display, in particular to an OLED display panel and an OLED display device.
Background
An Organic Light-Emitting Diode (OLED) display device has the advantages of simple manufacturing process, low cost, low power consumption, high brightness, thin volume, easy realization of color display, and the like, and thus has a wide application prospect.
An existing OLED display device generally includes a light emitting unit disposed on an array substrate, and a pixel defining layer isolating the light emitting unit, the light emitting unit including an anode electrode layer, an organic light emitting layer, and a cathode electrode layer sequentially stacked on the array substrate; and the cathode layer also covers the pixel defining layer.
However, when the OLED display device is bent for multiple times, the cathode layer and the organic light emitting layer are easily peeled and separated, which results in poor display effect or display failure of the OLED display device.
Disclosure of Invention
The invention provides an OLED display panel and an OLED display device, which aim to solve the problem that in the prior art, the cathode layer and an organic light emitting layer are easy to peel off and separate due to repeated bending of the OLED display device.
The invention provides an OLED display panel, which comprises a light-emitting unit arranged on an array substrate and a pixel limiting layer for isolating the light-emitting unit, wherein the light-emitting unit comprises a first electrode layer, an organic light-emitting layer and a second electrode layer which are sequentially stacked on the array substrate; and the second electrode layer also covers the pixel defining layer.
And the second electrode layer and the pixel limiting layer are provided with mutually embedded bulges and grooves which are used for enhancing the binding force between the second electrode layer and the pixel limiting layer.
The OLED display panel as described above, wherein the protrusion is disposed on the second electrode layer, and the groove is disposed on the pixel defining layer.
The OLED display panel as described above, wherein a plurality of isolation pillars are disposed between the pixel defining layer and the second electrode layer, and the plurality of isolation pillars are disposed at intervals around the opening of the pixel defining layer.
The OLED display panel as described above, wherein the isolation pillar includes a metal isolation pillar, and the metal isolation pillar is fixedly connected to the second electrode layer.
The groove is arranged on the pixel limiting layer, and the protrusion is arranged on the metal isolation column.
The OLED display panel as described above, wherein the material of the metal isolation pillar is the same as the material of the second electrode layer, and the metal isolation pillar and the second electrode layer are an integrated structure.
The OLED display panel as described above, wherein the isolation pillar includes an organic isolation pillar, and the organic isolation pillar is fixedly connected to the pixel defining layer; the groove is arranged on the organic isolation column, and the protrusion is arranged on the second electrode layer.
The OLED display panel as described above, wherein the material of the organic isolation pillar is the same as the material of the pixel defining layer, and the organic isolation pillar and the pixel defining layer are an integral structure.
The OLED display panel as described above, wherein the number of the grooves is plural, and the plural grooves are arranged in an array.
The OLED display panel as described above, wherein a surface perpendicular to the second electrode layer is a cross section, the cross section of the groove is trapezoidal, and the area of the groove opening of the groove is smaller than the area of the groove bottom of the groove.
The invention also provides an OLED display device which comprises the OLED display panel.
According to the OLED display panel and the OLED display device, the embedded bulges and grooves are arranged between the second electrode layer and the pixel limiting layer, the binding force between the second electrode layer and the pixel limiting layer is enhanced by the mutual embedding of the bulges and the grooves, the phenomena of peeling or separation and the like of the second electrode layer and the organic light emitting layer when the OLED display panel is bent are avoided, the display effect of the OLED display device is improved, and the service life of the OLED display device is prolonged.
In addition to the technical problems solved by the present invention, the technical features constituting the technical solutions, and the advantages brought by the technical features of the technical solutions described above, other technical problems solved by the OLED display panel and the OLED display device provided by the present invention, other technical features included in the technical solutions, and advantages brought by the technical features will be further described in detail in the detailed description of the embodiments.
Drawings
The following detailed description of the present invention is provided in conjunction with the accompanying drawings, and it is to be understood that the detailed description set forth herein is merely illustrative and explanatory of the present invention and is not restrictive of the invention as claimed below.
Fig. 1 is a schematic structural diagram of an OLED display panel according to a first embodiment of the invention;
FIG. 2 is a schematic structural diagram of an OLED display panel according to a second embodiment of the present invention;
fig. 3 is a schematic structural diagram of an OLED display panel according to a third embodiment of the invention.
Description of reference numerals:
1: an array substrate;
2: a pixel defining layer;
3: a first electrode layer;
4: an organic light emitting layer;
5: a second electrode layer;
61: a groove;
62: a protrusion;
71: a metal isolation column;
72: an organic isolation column.
Detailed Description
The following detailed description of the present invention is provided in conjunction with the accompanying drawings, and it is to be understood that the detailed description set forth herein is merely illustrative and explanatory of the present invention and is not restrictive of the invention as claimed below.
Fig. 1 is a schematic structural diagram of an OLED display panel according to a first embodiment of the invention; FIG. 2 is a schematic structural diagram of an OLED display panel according to a second embodiment of the present invention; fig. 3 is a schematic structural diagram of an OLED display panel according to a third embodiment of the invention.
Referring to fig. 1 to 3, the present embodiment provides an OLED display panel including a light emitting unit disposed on an array substrate 1 and a pixel defining layer 2 for isolating the light emitting unit, wherein the light emitting unit includes a first electrode layer 3, an organic light emitting layer 4 and a second electrode layer 5 sequentially stacked on the array substrate 1; and the second electrode layer 5 also covers the pixel defining layer 2; the second electrode layer 5 and the pixel limiting layer 2 are provided with a protrusion 62 and a groove 61 which are mutually embedded, and the protrusion 62 and the groove 61 which are mutually embedded are used for enhancing the binding force between the second electrode layer 5 and the pixel limiting layer 2.
In this embodiment, the array substrate 1 is located at a bottom layer of the OLED display panel, and may include a substrate and a Thin Film Transistor (TFT) layer that are sequentially stacked, where the substrate may be a flexible substrate that can be bent under a force.
A pixel defining layer 2 and a light emitting unit, which may include a first electrode layer 3, an organic light emitting layer 4, and a second electrode layer 5, are also disposed on the array substrate 1.
The pixel defining layer 2 may define the position of a light emitting region. Specifically, the pixel defining layer 2 is provided with a plurality of openings arranged in an array, each opening is provided with an organic light emitting material therein, the organic light emitting materials provided in the openings constitute an organic light emitting layer 4, and the opening area is a light emitting area.
The first electrode layer 3 is located on the array substrate 1, and may be made of conductive materials such as metal or semiconductor, and the TFT layer is electrically connected to the first electrode layer 3 for controlling the on/off of the current in the first electrode layer 3. The first electrode layer 3 may be an anode or a cathode of the OLED display panel.
The second electrode layer 5 covers the pixel defining layer 2 and the organic light emitting layer 4, and the second electrode layer 5 may be made of a conductive material such as a metal or a semiconductor. The second electrode layer 5 may be a cathode or an anode, and is not particularly limited herein. In the following embodiments, the first electrode layer 3 is used as an anode, and the second electrode layer 5 is used as a cathode made of a metal material.
The second electrode layer 5 and the pixel defining layer 2 are provided with a groove 61 and a protrusion 62 which are mutually embedded, and the shape and size of the groove 61 can be various, for example, the shape of the groove can be regular rectangular parallelepiped or cylindrical, or the shape of the groove can be irregular. The shape and size of the protrusion 62 may be the same as those of the groove 61, respectively, so that the groove 61 and the protrusion 62 may be tightly fitted together.
Preferably, the cross-sectional shape of the groove 61 is trapezoidal, taking the plane perpendicular to the second electrode layer 5 as a cross-section, and the groove opening area of the groove 61 is smaller than the groove bottom area of the groove 61. Accordingly, the cross-sectional shape of the projection 62 may be an inverted trapezoid that fits into the groove 61. When the OLED display panel is bent, the groove 61 having the trapezoidal cross-sectional shape may prevent the protrusion 62 from coming out of the groove 61, so as to increase the bonding force between the second electrode layer 5 and the pixel defining layer 2, and further increase the bonding force between the pixel defining layer 2 and the organic light emitting layer 4.
In addition, the arrangement manner of the groove 61 and the protrusion 62 may be various, for example, the groove 61 is arranged on the second electrode layer 5, and the protrusion 62 is arranged on the pixel defining layer 2, when the OLED display panel is bent, the groove 61 and the protrusion 62 which are mutually embedded can enhance the contact area between the pixel defining layer 2 and the second electrode layer 5, so as to increase the bonding force between the pixel defining layer 2 and the second electrode layer 5, further increase the bonding force between the organic light emitting layer 4 and the second electrode layer 5, and avoid the second electrode layer 5 and the organic light emitting layer 4 from being peeled off or separated when the OLED display panel is bent.
Preferably, the number of the grooves 61 may be multiple, and the multiple grooves 61 are arranged in an array to further improve the bonding force between the pixel defining layer 2 and the second electrode layer 5.
The OLED display panel that this embodiment provided sets up the arch and the recess of looks gomphosis between second electrode layer and pixel limit layer to rely on the mutual gomphosis of arch and recess to strengthen the cohesion between second electrode layer and the pixel limit layer, avoid second electrode layer and organic luminescent layer to take place to peel off or phenomenon such as separation when OLED display panel buckles, improved OLED display device's display effect and life-span.
Referring to fig. 1, in a preferred embodiment, the protrusion 62 is disposed on the second electrode layer 5, and the groove 61 is disposed on the pixel defining layer 2.
Specifically, the groove 61 may be formed in the pixel defining layer 2 by a process method such as masking, exposing, developing, etching, and the like, and the groove 61 may be a blind hole structure that does not penetrate through the pixel defining layer 2, or a through hole structure that penetrates through the pixel defining layer 2, which is not specifically limited herein.
The projection 62 may be a block-like structure that fills the entire recess 61, or the projection 62 may be a thin-walled structure formed on the inner surface of the recess 61.
Preferably, the ratio of the depth of the groove 61 in the up-down direction in fig. 1 to the height of the pixel defining layer 2 may be in the range of 0.25 to 0.5, and the width of the groove 61 in the left-right direction in fig. 1 may be in the range of 1 to 3 micrometers; further preferably, the depth of the groove 61 is one third of the height of the pixel defining layer 2, so that the bonding force between the pixel defining layer 2 and the second electrode layer 5 can be improved, and the strength of the pixel defining layer 2 can be ensured to meet the requirement.
When the OLED display panel is bent, the contact area between the pixel defining layer 2 and the second electrode layer 5 can be increased by mutually embedding the groove 61 and the protrusion 62, so that the bonding force between the pixel defining layer 2 and the second electrode layer 5 is increased, the bonding force between the organic light emitting layer 4 and the second electrode layer 5 is increased, and the second electrode layer 5 and the organic light emitting layer 4 are prevented from being peeled off or separated when the OLED display panel is bent. Moreover, since the thickness of the pixel defining layer 2 is generally greater than that of the second electrode layer 5, when the second electrode layer 5 is a thin-walled structure, the recess is disposed on the pixel defining layer 2, and the protrusion 62 is disposed on the second electrode layer 5, so that the thickness of the OLED display panel can be reduced, and the competitiveness of the OLED display device can be improved.
In another embodiment, a plurality of isolation pillars are disposed between the pixel defining layer 2 and the second electrode layer 5, and are spaced around the opening of the pixel defining layer 2.
Specifically, the isolation column is disposed on the pixel defining layer 2 around the organic light emitting layer 4, the isolation column may include a bottom surface, a top surface, and a side surface between the bottom surface and the top surface, the bottom surface may be connected to the pixel defining layer 2, and the second electrode layer 5 is coated outside the side surface and the top surface of the isolation column, so that the isolation column is formed between the pixel defining layer 2 and the second electrode layer 5. The shape of the isolation column can be square, trapezoid and the like. The number and the interval of the pillars may be set according to the size of the organic light emitting layer 4, and are not particularly limited herein. The height dimension of the isolation pillars in the up-down direction in fig. 2 may be 1.2 to 2.0 micrometers, and preferably, the isolation pillars may be 1.6 micrometers.
In addition, in the OLED display panel course of working, need use the mask plate when coating by vaporization organic luminescent layer 4, the separation post can play the effect of supporting the mask plate, reduces the area of contact of OLED display panel and mask plate, avoids fish tail OLED display panel, also can avoid the mask plate by the fish tail simultaneously, improves the life of mask plate.
Referring to fig. 2, on the basis that the OLED display panel has the isolation pillars, as a preferred embodiment of the groove 61 and the protrusion 62, the isolation pillars include metal isolation pillars 71, the metal isolation pillars 71 are fixedly connected to the second electrode layer 5, the groove 61 is disposed on the pixel defining layer 2, and the protrusion 62 is disposed on the metal isolation pillars 71.
Specifically, some or all of the plurality of isolation pillars may be metal isolation pillars 71, and the metal isolation pillars 71 may be composed of a common metal material, such as aluminum, silver, magnesium-silver alloy, and the like. The groove 61 may be formed on the pixel defining layer 2, and the protrusion 62 may be formed on the metal isolation pillar 71.
When the OLED display panel is processed, a groove 61 may be formed on the pixel defining layer 2, and then a metal material may be deposited in the groove 61 to form a protrusion 62, a depth of the protrusion 62 in the vertical direction in fig. 2 may be equal to a depth of the groove 61, and then a metal material may be further deposited above the protrusion 62 to form a metal isolation pillar 71, and then the organic light emitting layer 4 may be evaporated, and then the second electrode layer 5 may be formed.
It is understood that the second electrode layer 5 may also be made of a common metal material, that is, the second electrode layer 5 and the metal isolation pillars 71 both belong to an inorganic material layer, and the pixel defining layer 2 may be an organic material layer made of an organic material, and when the OLED is bent for multiple times, the inorganic material layer and the organic material layer are more easily peeled off than between two inorganic material layers or between two organic material layers. The structure that the protrusion 62 and the groove 61 are mutually embedded is formed between the metal isolation column 71 and the pixel limiting layer 2, so that the bonding force between the metal isolation column 71 and the pixel limiting layer 2 can be improved, the bonding force between the second electrode layer 5 and the pixel limiting layer 2 is increased, the second electrode layer 5 and the organic light emitting layer 4 can be bonded more tightly, and the second electrode layer 5 and the organic light emitting layer 4 are prevented from being stripped or separated when the OLED display panel is bent.
Further, the material of the metal isolation pillar 71 is the same as that of the second electrode layer 5, and the metal isolation pillar 71 and the second electrode layer 5 are an integral structure, that is, the protrusion 62, the metal isolation pillar 71 and the second electrode layer 5 may be the same metal material, so that the protrusion 62, the metal isolation pillar 71 and the second electrode layer 5 may be formed into an integral structure, thereby enhancing the bonding force between the second electrode layer 5 and the pixel defining layer 2.
In addition, in this embodiment, the protrusion 62 is disposed on the metal isolation pillar 71, and the groove 61 is disposed on the pixel defining layer 2, but this embodiment is not limited thereto, and the protrusion 62 may also be formed on the pixel defining layer 2, and the groove 61 may be formed on the metal isolation pillar 71.
Referring to fig. 3, on the basis that the OLED display panel has the isolation pillars, as another preferred embodiment of the groove 61 and the protrusion 62, the isolation pillars include organic isolation pillars 72, and the organic isolation pillars 72 are fixedly connected to the pixel defining layer 2; the groove 61 is disposed on the organic separator 72, and the protrusion 62 is disposed on the second electrode layer 5.
Specifically, part or all of the plurality of isolation pillars may be organic isolation pillars 72, and the organic isolation pillars 72 may be composed of a common organic material such as polyimide or the like. The groove 61 may be formed on the top surface of the organic separation pillar 72, and the protrusion 62 may be formed on the second electrode layer 5. The bumps 62 may also be made of a common metal material, such as aluminum, silver, magnesium-silver alloy, and the like, and preferably, the materials of the bumps 62 and the second electrode layer 5 may be the same metal material, so as to improve the bonding force between the bumps 62 and the second electrode layer 5.
When the OLED display panel is processed, the organic isolation pillars 72 may be formed on the pixel defining layer 2, the grooves 61 may be formed on the organic isolation pillars 72, the metal material may be deposited in the grooves 61 to form the protrusions 62, the depth of the protrusions 62 in the up-down direction of fig. 3 may be greater than or equal to the depth of the grooves 61, and then the second electrode layer 5 may be formed over the protrusions 62.
It is understood that the pixel defining layer 2 may also be composed of an organic material, i.e., the pixel defining layer 2 and the organic isolation pillars 72 both belong to an organic material layer, while the second electrode layer 5 is an inorganic material layer composed of a metal material. When the OLED display panel is bent many times, peeling between the inorganic material layer and the organic material layer may occur more easily than between two inorganic material layers or between two organic material layers. The structure that the groove 61 and the protrusion 62 are embedded with each other is formed between the organic isolation column 72 and the second electrode layer 5, so that the bonding force between the organic isolation column 72 and the second electrode layer 5 can be improved, the bonding force between the second electrode layer 5 and the pixel limiting layer 2 is increased, the second electrode layer 5 and the organic light emitting layer 4 can be bonded more tightly, and the second electrode layer 5 and the organic light emitting layer 4 are prevented from being peeled off or separated when the OLED display panel is bent.
Further, the material of the organic isolation pillar 72 is the same as that of the pixel defining layer 2, and the organic isolation pillar 72 and the pixel defining layer 2 are of an integral structure, so that the bonding force between the organic isolation pillar 72 and the pixel defining layer 2 is improved, and the bonding force between the second electrode layer 5 and the pixel defining layer 2 is further improved.
In addition, in the embodiment, the protrusion 62 is disposed on the second electrode layer 5, and the groove 61 is disposed on the organic isolation pillar 72, but the embodiment is not limited thereto, and the protrusion 62 may be formed on the organic isolation pillar 72, and the groove 61 may be formed on the second electrode layer 5.
It is understood that, in another embodiment, the OLED display panel may have both the structures of fig. 2 and 3.
The embodiment also provides an OLED display device which comprises the OLED display panel. The OLED display panel comprises an array substrate 1, a first electrode layer 3, a pixel limiting layer 2 and a second electrode layer 5 which are sequentially stacked; the pixel defining layer 2 is formed with an opening in which an organic light emitting layer 4 is disposed; the second electrode layer 5 and the pixel limiting layer 2 are provided with a protrusion 62 and a groove 61 which are mutually embedded, and the protrusion 62 and the groove 61 which are mutually embedded are used for enhancing the binding force between the second electrode layer 5 and the pixel limiting layer 2.
Specifically, the OLED display device provided in this embodiment is a product or a component having a display function, such as a mobile phone, a tablet computer, a television, a display, an electronic book, electronic paper, a smart watch, a notebook computer, a digital photo frame, or a navigator. The OLED display panel may have the structure in the first embodiment, the second embodiment, or the third embodiment, and the embodiments may be referred to specifically.
When the OLED display panel is bent, the contact area between the pixel defining layer 2 and the second electrode layer 5 can be increased by mutually embedding the groove 61 and the protrusion 62, so that the bonding force between the pixel defining layer 2 and the second electrode layer 5 is increased, the bonding force between the organic light emitting layer 4 and the second electrode layer 5 is increased, and the second electrode layer 5 and the organic light emitting layer 4 are prevented from being peeled off or separated when the OLED display panel is bent.
According to the OLED display device provided by the invention, the mutually embedded bulges and grooves are arranged between the second electrode layer and the pixel limiting layer, and the bonding force between the second electrode layer and the pixel limiting layer is enhanced by means of mutual embedding of the bulges and the grooves, so that the phenomena of peeling or separation and the like of the second electrode layer and the pixel limiting layer during bending are avoided, the display effect of the OLED display device is improved, and the service life of the OLED display device is prolonged.
In the present invention, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the terms "upper", "lower", "top", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience in describing the present invention, and do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation; unless expressly stated or limited otherwise, the terms "mounted," "connected," and the like are intended to be inclusive and mean that, for example, the term "connected" may be fixed or removable or integrally connected. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description of the present specification, reference to the description of the terms "one embodiment", "some embodiments", "an illustrative embodiment", "an example", "a specific example", or "some examples", etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (5)
1. The OLED display panel is characterized by comprising a light-emitting unit and a pixel limiting layer, wherein the light-emitting unit is arranged on an array substrate, the pixel limiting layer is used for isolating the light-emitting unit, and the light-emitting unit comprises a first electrode layer, an organic light-emitting layer and a second electrode layer which are sequentially stacked and arranged on the array substrate; and the second electrode layer also covers the pixel defining layer;
the second electrode layer and the pixel limiting layer are provided with mutually embedded bulges and grooves, and the mutually embedded bulges and grooves are used for enhancing the bonding force between the second electrode layer and the pixel limiting layer;
the surface perpendicular to the second electrode layer is taken as a cross section, the cross section of the groove is trapezoidal, and the area of the groove opening of the groove is smaller than the area of the groove bottom of the groove; the ratio of the depth of the groove to the height of the pixel defining layer is 0.25-0.5, and the width of the groove is between 1-3 μm;
a plurality of isolation columns are arranged between the pixel limiting layer and the second electrode layer and are arranged at intervals around the opening of the pixel limiting layer;
the isolation column comprises a metal isolation column, the metal isolation column is fixedly connected with the second electrode layer, the groove is formed in the pixel limiting layer, and the protrusion is arranged on the metal isolation column; or the isolation column comprises an organic isolation column, the organic isolation column is fixedly connected with the pixel limiting layer, the groove is formed in the organic isolation column, and the protrusion is formed in the second electrode layer.
2. The OLED display panel of claim 1, wherein the metal isolation pillar is made of the same material as the second electrode layer, and the metal isolation pillar and the second electrode layer are of a unitary structure.
3. The OLED display panel of claim 1, wherein the material of the organic isolation pillar is the same as the material of the pixel defining layer, and the organic isolation pillar and the pixel defining layer are a unitary structure.
4. The OLED display panel of any one of claims 1-3, wherein the number of the grooves is multiple, and the multiple grooves are arranged in an array.
5. An OLED display device comprising the OLED display panel according to any one of claims 1 to 4.
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| CN109449307B (en) * | 2018-09-29 | 2021-10-22 | 广州国显科技有限公司 | Organic light emitting device and flexible display apparatus |
| WO2020232702A1 (en) * | 2019-05-23 | 2020-11-26 | 深圳市柔宇科技有限公司 | Display screen module and manufacturing method therefor, and electronic device |
| CN112017550B (en) * | 2019-05-31 | 2022-06-03 | 成都辰显光电有限公司 | Display panel, manufacturing method thereof and display device |
| CN110943115B (en) * | 2019-12-13 | 2022-12-06 | 云谷（固安）科技有限公司 | Display panel and display device |
| CN111048567B (en) * | 2019-12-24 | 2022-07-19 | 固安翌光科技有限公司 | Organic photoelectric device |
| CN111430300B (en) * | 2020-03-31 | 2023-09-05 | 京东方科技集团股份有限公司 | OLED array substrate, preparation method thereof, display panel and display device |
| CN111584583B (en) * | 2020-05-15 | 2022-07-12 | 武汉华星光电半导体显示技术有限公司 | Display panel and manufacturing method thereof |
| CN111769140B (en) * | 2020-06-23 | 2023-09-29 | 武汉华星光电半导体显示技术有限公司 | Display panel and display module |
| CN112310316A (en) * | 2020-10-28 | 2021-02-02 | 武汉华星光电半导体显示技术有限公司 | Display panel and preparation method thereof |
| CN114220833B (en) * | 2021-12-13 | 2023-07-04 | 武汉华星光电半导体显示技术有限公司 | Display panel |
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| CN103887261B (en) * | 2014-03-03 | 2016-08-31 | 京东方科技集团股份有限公司 | A kind of flexible display and preparation method thereof |
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Application publication date: 20190222 Assignee: Bazhou Yungu Electronic Technology Co., Ltd.|Kunshan Institute of technology new flat panel display technology center Co., Ltd.|Kunshan Guoxian photoelectric Co., Ltd Assignor: The valley (Guan) Technology Co. Ltd. Contract record no.: X2019990000155 Denomination of invention: OLED device packaging method, OLED display panel and OLED display device License type: Common License Record date: 20191030 |
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