CN108922901A - Display panel - Google Patents
Display panel Download PDFInfo
- Publication number
- CN108922901A CN108922901A CN201810691298.3A CN201810691298A CN108922901A CN 108922901 A CN108922901 A CN 108922901A CN 201810691298 A CN201810691298 A CN 201810691298A CN 108922901 A CN108922901 A CN 108922901A
- Authority
- CN
- China
- Prior art keywords
- obstruction member
- display panel
- main part
- pixel defining
- defining layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
-
- 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
- H10K50/84—Passivation; Containers; Encapsulations
-
- 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
- H10K50/84—Passivation; Containers; Encapsulations
- H10K50/844—Encapsulations
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
The invention discloses a kind of display panel, the display panel includes：Display device, the display device include at least thin film transistor switch, pixel defining layer, anode, organic light emitting material, cathode, and the main part of the cathode is set on the organic light emitting material and the pixel defining layer；Obstruction member, the obstruction member are set in the pixel defining layer, and the obstruction member is located between the edge of the main part and the edge of the display device；Packing component, the packing component cover in the main part, the obstruction member and the pixel defining layer.The present invention can reduce the risk that the cathode in display panel is corroded.
Description
【Technical field】
The present invention relates to field of display technology, in particular to a kind of display panel.
【Background technique】
Cathode in traditional OLED display panel is more sensitive to water oxygen, that is, the water oxygen outside OLED display panel
It infiltrates into OLED display panel and when with cathode contacts, which is easy to be corroded, and then influences OLED display panel
Service life.
For the demand of narrow frame, the boundary of the cathode in traditional OLED display panel and the boundary of OLED display panel
The distance between it is smaller and smaller, therefore, the path that infiltrates into OLED display panel in of the water oxygen from the outside of OLED display panel
Shorter and shorter, which increase the risks that cathode is corroded by water oxygen.
Therefore, it is necessary to propose a kind of new technical solution, to solve the above technical problems.
【Summary of the invention】
The purpose of the present invention is to provide a kind of display panels, can reduce the wind that the cathode in display panel is corroded
Danger.
To solve the above problems, technical scheme is as follows：
A kind of display panel, the display panel include：Display device, the display device include at least thin film transistor (TFT)
Switch, pixel defining layer, anode, organic light emitting material, cathode, the main part of the cathode are set to the organic light emission material
On the bed of material and the pixel defining layer；Obstruction member, the obstruction member are set in the pixel defining layer, and the resistance
It is located between the edge of the main part and the edge of the display device every component；Packing component, the packing component covering
In the main part, the obstruction member and the pixel defining layer.
In the above display panel, the obstruction member is one of strip, ring-type, wavy.
In the above display panel, the obstruction member is close to the first side of the main part and far from the main part
Second side be inclined-plane, the width of the bottom of the obstruction member is less than the width at the top of the obstruction member.
In the above display panel, the first angle of plane corresponding to the first side and the pixel defining layer with
And the second angle of plane corresponding to the second side and the pixel defining layer is in the range of 10 degree to 80 degree.
In the above display panel, the main part has the close to one end of the obstruction member and the first side
One spacing.
In the above display panel, the cathode further includes：First separation unit, first separation unit are set to the resistance
Every the top surface of component；And second separation unit, second separation unit are set in the pixel defining layer, and described second
Separated part is in the obstruction member backwards to the side of the main part.
In the above display panel, the one end and the obstruction member of second separation unit close to the obstruction member
Side has the second spacing.
In the above display panel, at least one of the main part, first separation unit, described second separation unit
Thickness be less than or equal to 60 nanometers.
In the above display panel, at least two obstruction members are along from the edge of the main part to the display device
The direction at edge arrange in an array manner；There is third spacing between adjacent two obstruction member.
In the above display panel, the third spacing is along from the edge of the main part to the edge of the display device
Direction incremental value be greater than zero；Or the incremental value is equal to zero；Or the incremental value is less than zero.
In the above display panel, the height of the obstruction member is less than or equal to 3 microns.
Compared with the prior art, in the present invention, due to further including the obstruction member, the obstruction member is set to described
In pixel defining layer, and the obstruction member is located between the edge of the main part and the edge of the display device, with
It prevents water oxygen to be in contact with the main part of the cathode, therefore water oxygen can be completely cut off by the obstruction member from display surface
The outside of plate infiltrates into the main part of the cathode by the gap between the pixel defining layer and the packing component
Path, therefore the present invention can block water oxygen caused by plated film out-of-bounds caused by due to plated film precision invasion corroding electrode ask
Topic to effectively prevent cathode by water oxygen corrosion and short circuit, and then reduces cathode and the overlap joint short circuit of other metal conduction layers
Risk.
For above content of the invention can be clearer and more comprehensible, preferred embodiment is cited below particularly, and cooperate institute's accompanying drawings, makees
Detailed description are as follows.
【Detailed description of the invention】
Fig. 1 is the schematic diagram of the first embodiment of display panel of the invention.
Fig. 2 is the schematic diagram of the first form of expression of the top view of first embodiment shown in FIG. 1.
Fig. 3 is the schematic diagram of second of form of expression of the top view of first embodiment shown in FIG. 1.
Fig. 4 is the schematic diagram of the third form of expression of the top view of first embodiment shown in FIG. 1.
Fig. 5 is the schematic diagram of the second embodiment of display panel of the invention.
Fig. 6 is the schematic diagram of the 3rd embodiment of display panel of the invention.
Fig. 7 is the schematic diagram of the first form of expression of the top view of 3rd embodiment shown in fig. 6.
Fig. 8 is the schematic diagram of second of form of expression of the top view of 3rd embodiment shown in fig. 6.
Fig. 9 is the schematic diagram of the third form of expression of the top view of 3rd embodiment shown in fig. 6.
【Specific embodiment】
The word " embodiment " used in this specification means example, example or illustration.In addition, this specification and appended power
Benefit require used in the article " one " can generally be interpreted " one or more ", unless specified otherwise or from context
It can understand and determine singular.
Referring to figs. 1 to Fig. 4, Fig. 1 is the schematic diagram of the first embodiment of display panel of the invention, and Fig. 2 to Fig. 4 is respectively
The top view of first embodiment shown in FIG. 1 the first, second, the schematic diagram of the third form of expression.
The display panel of the present embodiment is suitable for OLED (Organic Light Emitting Diode, organic light emission two
Pole pipe display panel) etc..
The display panel of the present embodiment includes display device, obstruction member 107, packing component 108, the first dam shape component
109 and the second dam shape component 110.The display panel further includes basement membrane layer combination 101,101 packet of basement membrane layer combination
Include the combination of the film layers such as flexible substrates, buffer layer.
The display device is set in the basement membrane layer combination 101.The display device includes at least film crystal
Pipe switch, scan line, data line, planarization layer 102, pixel defining layer 103, anode 104, organic light emitting material 105, yin
Pole, the grid and source electrode of the thin film transistor switch are connect with the scan line, the data line respectively, the film crystal
The drain electrode of pipe switch is also connect with the anode 104, and at least part of the organic light emitting material 105 is set to the sun
On pole 104, the main part 106 of the cathode is set in the organic light emitting material 105 and the pixel defining layer 103.
The main part 106 is the part that the cathode is covered on the organic light emitting material 105, and the main part 106 is in institute
The position stated in display device is corresponding with position of the organic light emitting material 105 in the display device, in work shape
Under state (state of display image), the main part 106 makes organic light emitting material 105 shine jointly with the anode.
The obstruction member 107 is set in the pixel defining layer 103, and the obstruction member 107 is positioned at described
Between the edge of main part 106 and the edge of the display device, the obstruction member 107 is obstructed and is kept away for separating cathode
Exempt from water oxygen invasion cathode, avoids the metal layer short circuit in the display device, that is, the obstruction member 107 is for preventing water oxygen
It is in contact with the main part 106 of the cathode.Specifically, the obstruction member 107 is for preventing water oxygen from the pixel
Gap between definition layer 103 and the encapsulated layer infiltrates at the main part 106 of the cathode.
The packing component 108 covers the main part 106, the obstruction member 107 and the pixel defining layer 103
On.
The first dam shape component 109 and the second dam shape component 110 are all set in the basement membrane layer combination 101
On.
The thickness of the main part 106 is less than or equal to 60 nanometers.Preferably, the thickness of the main part 106 be less than or
Equal to 30 nanometers.
The shape of the obstruction member 107 be strip (as shown in Figure 2), ring-type (as shown in Figure 3), wavy (such as Fig. 4
One of it is shown), in the case where the shape of the obstruction member 107 is strip, the obstruction member 107 is set to institute
The side for stating main part 106 is the encirclement of obstruction member 107 institute in cricoid situation in the shape of the obstruction member 107
Main part 106 is stated, in the case where the shape of the obstruction member 107 is wavy situation, the obstruction member 107 is set to described
The side of main part 106.
Straight line parallel corresponding to the edge of straight line corresponding to the obstruction member 107 and the main part 106, or
Straight line parallel corresponding to the edge of straight line corresponding to obstruction member 107 and the display device.
As an improvement the pixel defining layer 103 is located at the edge and the display device of the main part 106
Part between edge is provided with groove, and at least part of the obstruction member 107 is nested in the groove, the groove
With the obstruction member 107 for preventing water oxygen from seeping from the gap between the pixel defining layer 103 and the encapsulated layer jointly
Thoroughly extremely at the main part 106 of the cathode.
First side of the obstruction member 107 close to the main part 106 and second side far from the main part 106
Face is inclined-plane, and the width of the bottom of the obstruction member 107 is less than the width at the top of the obstruction member 107.That is, described
The shape of the cross section of obstruction member 107 is inverted trapezoidal.
Correspondingly, the shape of the cross section of the groove is also inverted trapezoidal.The shape of the cross section of the groove, ruler
Very little, area respectively with the shape of the cross section of the obstruction member 107, size, area matched.
First angle of plane corresponding to the first side and the pixel defining layer 103 and the second side
It is in the range of 10 degree to 80 degree with the second angle of plane corresponding to the pixel defining layer 103.
For example, first angle and second angle are：10 degree, 12 degree, 14 degree, 16 degree, 18 degree, 20 degree, 22
Degree, 24 degree, 26 degree, 28 degree, 30 degree, 32 degree, 34 degree, 36 degree, 38 degree, 40 degree, 42 degree, 44 degree, 46 degree, 48 degree, 50 degree, 52
Degree, 54 degree, 56 degree, 58 degree, 60 degree, 62 degree, 64 degree, 66 degree, 68 degree, 70 degree, 72 degree, 74 degree, 76 degree, 78 degree, 80 degree.
The main part 106 has the first spacing close to one end of the obstruction member 107 and the first side.
The obstruction member 107 with the first side and the second side is used for the organic light emission material
During conductive material is arranged to form the main part 106 in the bed of material 105 and the pixel defining layer 103, block to described
A part for the conductive material that pixel defining layer 103 conveys, so as to be formed by the main part 106 close to the barrier
One end of component 107 and the first side have first spacing.
The height of the obstruction member 107 is less than or equal to 3 microns.For example, the height of the obstruction member 107 is：0.1
Micron, 0.2 micron, 0.3 micron, 0.4 micron, 0.5 micron, 0.6 micron, 0.7 micron, 0.8 micron, 0.9 micron, 1 micron,
1.1 microns, 1.2 microns, 1.3 microns, 1.4 microns, 1.5 microns, 1.6 microns, 1.7 microns, 1.8 microns, 1.9 microns, it is 2 micro-
Rice, 2.1 microns, 2.2 microns, 2.3 microns, 2.4 microns, 2.5 microns, 2.6 microns, 2.7 microns, 2.8 microns, 2.9 microns, 3
Micron.
The packing component 108 includes the first inorganic material layer 1081, organic material layer 1082 and the second inorganic material layer
1083, the organic material layer 1082 be set to first inorganic material layer 1081 and second inorganic material layer 1083 it
Between.
The thickness of first inorganic material layer 1081 is in the range of 0.01 micron to 10 microns, it is preferable that described
The thickness of first inorganic material layer 1081 is in the range of 0.01 micron to 1 micron.
The thickness of second inorganic material layer 1083 is in the range of 0.01 micron to 10 microns, it is preferable that described
The thickness of second inorganic material layer 1083 is in the range of 0.01 micron to 1 micron.
The material of first inorganic material layer 1081, second inorganic material layer 1083 material be aluminium oxide
(Al2O3), titanium oxide (TiO2), silicon nitride (SiNx), carbonitride of silicium (SiCNx), silica (SiOx), in zirconium oxide (ZrO2)
One or more kinds of alloys.
The material of the organic material layer 1082 is hexamethyldisiloxane (HMDSO), acrylate (Acrylate), gathers
One of acrylate materials, polycarbonate material, polystyrene etc. or more than one combination.
First inorganic material layer 1081 and second inorganic material layer 1083 are covered on the first dam shape component
109 and the second dam shape component 110 on.
With reference to Fig. 5, Fig. 5 is the schematic diagram of the second embodiment of display panel of the invention.The present embodiment and above-mentioned first
Embodiment is similar, the difference is that：
In the present embodiment, the cathode further includes the first separation unit 111 and the second separation unit 112.First separation
The material in portion 111, second separation unit 112 and the main part 106 is all the same.In the cathode, first separation
Portion 111, second separation unit 112 are the part separated with 106 phase of main part.First separation unit 111, described
Two separation units 112 and the main part 106 are formed in same processing procedure.
First separation unit 111 is set to the top surface of the obstruction member 107.
Second separation unit 112 is set in the pixel defining layer 103, and second separation unit 112 is located at
The obstruction member 107 is backwards to the side of the main part 106.
First separation unit 111 is disconnected with the main part 106, and first separation unit 111 is separated with described second
Portion 112 disconnects.
The institute that first separation unit 111 and/or second separation unit 112 are used to prevent water oxygen from infiltrating into the cathode
It states at main part 106.
Second separation unit 112 has close to one end of the obstruction member 107 and the side of the obstruction member 107
Second spacing.
First separation unit 111 and second separation unit 112 are to the organic light emitting material 105 and described
During conductive material is arranged to form the main part 106 in pixel defining layer 103, using with the first side and institute
The obstruction member 107 for stating second side blocks a part of the conductive material conveyed to the pixel defining layer 103
Come what is formed.
The thickness of at least one of first separation unit 111, second separation unit 112 is less than or equal to 60 and receives
Rice.For example, at least one of first separation unit 111, described second separation unit 112 with a thickness of：2 nanometers, 3 nanometers, 5
Nanometer, 8 nanometers, 10 nanometers, 12 nanometers, 14 nanometers, 16 nanometers, 18 nanometers, 20 nanometers, 22 nanometers, 23 nanometers, 25 nanometers, 27
Nanometer, 31 nanometers, 33 nanometers, 35 nanometers, 37 nanometers, 39 nanometers, 40 nanometers, 42 nanometers, 43 nanometers, 45 nanometers, 47 nanometers, 50
Nanometer, 52 nanometers, 53 nanometers, 56 nanometers, 58 nanometers, 60 nanometers.
With reference to Fig. 6 to Fig. 9, Fig. 6 is the schematic diagram of the 3rd embodiment of display panel of the invention, and Fig. 7 to Fig. 9 is respectively
The top view of 3rd embodiment shown in fig. 6 the first, second, the schematic diagram of the third form of expression.
The present embodiment is similar to above-mentioned the first embodiment or the second embodiment, the difference is that：
In the present embodiment, at least two obstruction members 107 are along from the edge of the main part 106 to the display
The direction at the edge of part arranges in an array manner, as shown in FIG. 7 and 8.
There is third spacing between adjacent two obstruction member 107.
At least 1 second separation unit 112 is between adjacent two obstruction member 107.
Incremental value of the third spacing along the direction at the edge from the edge of the main part 106 to the display device
Greater than zero, that is, the third spacing between adjacent two obstruction member 107 is along from the edge of the main part 106 to institute
The direction for stating the edge of display device is gradually increased, and the amount increased can be steady state value, or non-constant value is (irregular
Numerical value).Alternatively, the incremental value is equal to zero, that is, the third spacing is shown along from the edge of the main part 106 to described
Show that the direction at the edge of device is kept constant.Alternatively, the incremental value is less than zero, that is, between adjacent two obstruction member 107
The third spacing be gradually reduced along the direction at edge from the edge of the main part 106 to the display device, subtracted
Small amount can be steady state value, or non-constant value (irregular numerical value).
As an improvement as shown in figure 9, the obstruction member 107 has notch, adjacent two obstruction member 107
Notch be staggered.
Compared with the prior art, in the present invention, due to further including the obstruction member 107, the obstruction member 107 is arranged
In in the pixel defining layer 103, and the obstruction member 107 is located at the edge and the display of the main part 106
Between the edge of part, to prevent water oxygen to be in contact with the main part 106 of the cathode, therefore the barrier structure can be passed through
Part 107 completely cuts off water oxygen and passes through the gap between the pixel defining layer 103 and the packing component 108 from the outside of display panel
The path of the main part 106 of cathode is infiltrated into, therefore the present invention can block plated film out-of-bounds caused by due to plated film precision to make
At water oxygen invade corroding electrode problem, thus effectively prevent cathode by water oxygen corrosion and short circuit, and then reduce cathode and its
The risk of his metal conduction layer overlap joint short circuit.
In conclusion although the present invention has been disclosed above in the preferred embodiment, but above preferred embodiment is not to limit
The system present invention, those skilled in the art can make various changes and profit without departing from the spirit and scope of the present invention
Decorations, therefore protection scope of the present invention subjects to the scope of the claims.
Claims (11)
1. a kind of display panel, which is characterized in that the display panel includes：
Display device, the display device include at least thin film transistor switch, pixel defining layer, anode, luminous organic material
Layer, cathode, the main part of the cathode are set on the organic light emitting material and the pixel defining layer；
Obstruction member, the obstruction member are set in the pixel defining layer, and the obstruction member is located at the main body
Between the edge in portion and the edge of the display device；
Packing component, the packing component cover in the main part, the obstruction member and the pixel defining layer.
2. display panel according to claim 1, which is characterized in that the obstruction member is strip, ring-type, wavy
One of.
3. display panel according to claim 2, which is characterized in that the obstruction member close to the main part first
The second side of side and the separate main part is inclined-plane, and the width of the bottom of the obstruction member is less than the barrier structure
The width at the top of part.
4. display panel according to claim 3, which is characterized in that the first side and the pixel defining layer institute are right
First angle of the plane answered and the second angle of the second side and plane corresponding to the pixel defining layer are located
In the range of 10 degree to 80 degree.
5. display panel according to claim 3, which is characterized in that the main part is close to one end of the obstruction member
There is the first spacing with the first side.
6. display panel according to claim 3, which is characterized in that the cathode further includes：
First separation unit, first separation unit are set to the top surface of the obstruction member；And
Second separation unit, second separation unit are set in the pixel defining layer, and second separated part is in institute
Obstruction member is stated backwards to the side of the main part.
7. display panel according to claim 6, which is characterized in that second separation unit is close to the obstruction member
One end and the side of the obstruction member have the second spacing.
8. display panel according to claim 6, which is characterized in that the main part, first separation unit, described
The thickness of at least one of two separation units is less than or equal to 60 nanometers.
9. display panel according to claim 2, which is characterized in that at least two obstruction members are along from the main part
The direction at edge to the edge of the display device arrange in an array manner；
There is third spacing between adjacent two obstruction member.
10. display panel according to claim 9, which is characterized in that the third spacing is along from the side of the main part
Edge to the edge of the display device direction incremental value be greater than zero；Or
The incremental value is equal to zero；Or
The incremental value is less than zero.
11. display panel according to claim 1, which is characterized in that it is micro- that the height of the obstruction member is less than or equal to 3
Rice.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810691298.3A CN108922901A (en) | 2018-06-28 | 2018-06-28 | Display panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810691298.3A CN108922901A (en) | 2018-06-28 | 2018-06-28 | Display panel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108922901A true CN108922901A (en) | 2018-11-30 |
Family
ID=64422936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810691298.3A Pending CN108922901A (en) | 2018-06-28 | 2018-06-28 | Display panel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108922901A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021031370A1 (en) * | 2019-08-19 | 2021-02-25 | 武汉华星光电半导体显示技术有限公司 | Display panel, display device, and manufacturing method of display panel |
| WO2021093031A1 (en) * | 2019-11-15 | 2021-05-20 | 深圳市华星光电半导体显示技术有限公司 | Display device and preparation method therefor |
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| CN105390523A (en) * | 2014-08-31 | 2016-03-09 | 乐金显示有限公司 | Flexible organic light emitting diode display panel |
| CN105609524A (en) * | 2014-10-31 | 2016-05-25 | 乐金显示有限公司 | Organic light-emitting display device |
| US20170025486A1 (en) * | 2015-07-22 | 2017-01-26 | Samsung Display Co., Ltd. | Flexible organic light-emitting display device |
| CN207250521U (en) * | 2017-10-25 | 2018-04-17 | 京东方科技集团股份有限公司 | A kind of display panel and display device |
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| CN105390523A (en) * | 2014-08-31 | 2016-03-09 | 乐金显示有限公司 | Flexible organic light emitting diode display panel |
| CN105609524A (en) * | 2014-10-31 | 2016-05-25 | 乐金显示有限公司 | Organic light-emitting display device |
| US20170025486A1 (en) * | 2015-07-22 | 2017-01-26 | Samsung Display Co., Ltd. | Flexible organic light-emitting display device |
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| WO2021031370A1 (en) * | 2019-08-19 | 2021-02-25 | 武汉华星光电半导体显示技术有限公司 | Display panel, display device, and manufacturing method of display panel |
| WO2021093031A1 (en) * | 2019-11-15 | 2021-05-20 | 深圳市华星光电半导体显示技术有限公司 | Display device and preparation method therefor |
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