CN109378327A - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
- Publication number
- CN109378327A CN109378327A CN201811126038.8A CN201811126038A CN109378327A CN 109378327 A CN109378327 A CN 109378327A CN 201811126038 A CN201811126038 A CN 201811126038A CN 109378327 A CN109378327 A CN 109378327A
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- groove
- display panel
- planarization layer
- layer
- display
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Classifications
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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
-
- 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
- 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
- H10K59/124—Insulating layers formed between TFT elements and OLED elements
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
The present invention relates to display panel and display devices.A kind of display panel is provided, which includes array layer group, and wherein array layer group includes the planarization layer in top layer, is provided with groove in planarization layer, fills resilient material in groove.Above-mentioned display panel is when being bent, resilient material is filled due to being provided in groove and groove in planarization layer, therefore when display panel is bent, the stress that the elastic material in groove can generate display panel inside is buffered, so that stress will not be concentrated excessively.In this way, display panel is when being bent, the functional film layer of display panel is not easy to break and each film layer between be not susceptible to remove, thus display panel is not easy to be damaged, to achieve the purpose that improve the bending resistance of display panel and prolong the service life.
Description
Technical field
The present invention relates to display technologies, more particularly to display panel and display device.
Background technique
Organic Light Emitting Diode (Organic Light-Emitting Diode, OLED) display, also referred to as Organic Electricity
Electroluminescent display is a kind of emerging panel display apparatus, since it is simple with preparation process, at low cost, low in energy consumption, hair
Brightness is high, volume is frivolous, fast response time, and be easily achieved colored display and large screen display, be easily achieved it is flexible aobvious
The advantages that showing has broad application prospects.
Summary of the invention
The application provides a kind of display panel and display device, and the display panel and display device, which have, longer uses the longevity
Life and stronger bending resistance.
According to an aspect of the invention, there is provided a kind of display panel, comprising: array layer group, wherein array layer group packet
The planarization layer in top layer is included, groove is provided in planarization layer, fills resilient material in groove.
Using the above-mentioned display panel of the present invention, due to being provided with groove in the planarization layer in array layer group top layer, and
And resilient material is filled in groove, therefore when display panel is bent, the elastic material in groove can be by stress buffer.This
Sample, display panel are not easy to be damaged when being bent, to reach the bending resistance for improving display panel and extend display panel
Service life purpose.
Groove longitudinally extends in planarization layer in one of the embodiments,.Preferably, the longitudinal profile of groove is square
Shape is trapezoidal.
The ratio of the diameter of the depth and groove of groove is between 10:1 and 5:1 in one of the embodiments,.
The quantity of groove is multiple in one of the embodiments, on the upper surface of planarization layer, the water of multiple grooves
There are many flat development lengths.
In one of the embodiments, on the upper surface of planarization layer, the water of at least partly groove in multiple grooves
Flat extending direction is different.
The quantity of groove has multiple in one of the embodiments, positioned at the quantity of the groove of display panel central area
Greater than the quantity for the groove for being located at display panel fringe region.
Pixel openings are formed on planarization layer in one of the embodiments, groove deviates the positive throwing of pixel openings
Shadow.
Electrode is formed on planarization layer in one of the embodiments, the quantity of groove is multiple, at least one ditch
Slot is within the scope of the orthographic projection of electrode.
Elastic material is porous elastic material in one of the embodiments,.Such as porous elastic material can be porous
Polystyrene.
According to another aspect of the present invention, a kind of display device is provided, including such as any one of above-described embodiment
The display panel.
Using the above-mentioned display device of the present invention, including the display panel as described in any one of above-described embodiment, this is aobvious
Show that panel is equipped with array layer group, due to being provided with groove in the planarization layer in array layer group top layer, and is filled in groove
Resilient material, therefore when display device is bent, the elastic material in groove can be by stress buffer.In this way, display device
It when being bent, is not easy to be damaged, to reach the bending resistance for improving display device and extend the service life of display device
Purpose.
Detailed description of the invention
Fig. 1 shows the sectional view of display panel in the application one embodiment.
Fig. 2 shows the sectional views of display panel in another embodiment of the application.
Fig. 3 shows the sectional view of display panel in another embodiment of the application.
Fig. 4 shows the top view of the planarization layer in the application one embodiment in display panel.
Fig. 5 shows the top view of the planarization layer in another embodiment of the application in display panel.
Fig. 6 shows the top view of the planarization layer in another embodiment of the application in display panel.
Specific embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing to the present invention
Specific embodiment be described in detail.Many details are explained in the following description in order to fully understand this hair
It is bright.But the invention can be embodied in many other ways as described herein, those skilled in the art can be not
Similar improvement is done in the case where violating intension of the present invention, therefore the present invention is not limited by the specific embodiments disclosed below.
It should be noted that it can be formed directly into another yuan when element is referred to as " being formed in " another element
On part or there may also be elements placed in the middle.Term as used herein "upper", "lower" and similar statement are intended merely to
The purpose of explanation is not offered as being unique embodiment.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
Body embodiment purpose, it is not intended that in limitation the present invention.Term as used herein "and/or" includes one or more phases
All combinations of the arbitrary sum of the listed item of pass.
Embodiments herein provides a kind of display panel.The display panel includes array layer group.Array layer group includes
Planarization layer in top layer is provided with groove in planarization layer, fills resilient material in groove.
In this application, it due to being provided with groove in the planarization layer in array layer group, and is filled in groove flexible
Material, therefore when display panel is bent, the stress that the elastic material in groove can generate display panel inside delays
Punching, so that stress will not be concentrated excessively.In this way, display panel is when being bent, the functional film layer of display panel it is not easy to break and
It is not susceptible to remove between each film layer, thus display panel is not easy to be damaged, to reach the bending resistance for improving display panel
With the purpose to prolong the service life.
Based on above scheme, with reference to the accompanying drawing, specific embodiment is described in detail.
Fig. 1 schematically illustrates the embodiment of the present application display panel 100.As shown in Figure 1, display panel 100 includes array
The pixel openings 27 that layer is organized 10 and is set in array layer group.Luminescent device is formed in pixel openings 27.In this implementation
In example, luminescent device OLED.OLED be it is well known to those skilled in the art, repeat no more.
In the embodiment shown in fig. 1, array layer group 10 may include substrate 30, active layer 42, gate insulating layer 46, grid
43, interlayer insulating film 48, source electrode 44, drain electrode 45 and planarization layer 41.Array layer group further includes capacitor 49, and capacitor 49 includes lower pole
Plate 491, capacitive insulating layer 47 and top crown 492.As shown in Figure 1, display panel 100 further includes electrode 50, pixel confining layer 20
With insulated column 25.Electrode 50 is set on planarization layer 41, and is contacted by contact hole with drain electrode 45.Pixel openings 27 are by pixel
Confining layers 20 define.These are techniques knowns, are repeated no more.
As shown in Figure 1, being provided with groove 411 in planarization layer 41, and resilient material is filled in groove 411.Due to
Groove 411 is provided in planarization layer 41 in array layer group 10, therefore when display panel is bent, groove 411 can be to aobvious
The stress for showing that panel itself generates is buffered, so that stress will not be concentrated excessively, film layer is avoided to remove and/or be broken.In addition,
Resilient material is filled in groove 411, so that planarization layer 41 has good rigidity, this helps to reduce to upper layer film forming
Adverse effect, and the elastic material in groove 411 also has preferable buffer function to stress.In this way, display panel is curved
It when folding, is not easy to be damaged, to achieve the purpose that improve the bending resistance of display panel and prolong the service life.
In one embodiment, groove 411 only longitudinally extends in planarization layer.Illustratively, as shown in Figure 1, groove
411 extend lengthwise into the lower surface of planarization layer 41.As shown in Figure 1, when groove 411 runs through entire planarization layer, ditch groove depth
Degree is deeper, thus when display panel is bent, groove is more preferable to the buffering effect of stress, aobvious so as to improve more significantly
Show the bending resistance of panel and prolongs the service life.
In one embodiment, the longitudinal profile of groove 411 is rectangle or trapezoidal, as shown in Figures 1 and 2.In Fig. 1
In, the longitudinal profile of groove 411 is rectangle.Fig. 2 shows the schematic diagrames of display panel 200, in Fig. 2, the longitudinal direction of groove 411
Section is wide at the top and narrow at the bottom trapezoidal.The groove 411 of this shape helps to fill up elastic material in groove 411.
In one embodiment, the ratio of the diameter of the depth and groove of groove is between 10:1 and 5:1.When groove is circle
When column-shaped trench, the diameter of groove is actual diameter；When groove is irregularly-shaped hole, the diameter of groove is equivalent diameter.Example
Such as, the ratio of the diameter of the depth and groove of groove can be 10:1, can be 8:1, or 5:1.By the depth of groove
Ratio control with the diameter of groove can surprisingly deviate from from groove, to avoid shadow within this range to avoid elastic material
Ring the ability that groove absorbs stress.
In one embodiment, as shown in Figure 1, groove 411 deviates the orthographic projection of pixel openings 27.In Fig. 1, groove
411 orthographic projection with pixel openings 27 relative to substrate 30 does not overlap.It, can be to avoid since pixel openings are avoided in the position of groove
The preparation for influencing luminescent device, to guarantee the display effect of display panel.
In one embodiment, it is formed with electrode on planarization layer, multiple grooves are provided in planarization layer, at least one
Groove is in electrode relative within the scope of the orthographic projection of substrate.As shown in figure 3, showing the cross-sectional view of display panel 300.Example
Property, in Fig. 3, groove 4111-4113 is provided in planarization layer 41, wherein groove 4112 is in the orthographic projection model of electrode 50
In enclosing.In this way, can deviate pixel openings 27 lays more grooves, so that display panel has better bend resistance damageability
Energy.
In one embodiment, elastic material is porous elastic material, porous elastic material and planarization layer in groove
On electrode contact.Illustratively, as shown in figure 3, the porous elastic material in groove 4112 is contacted with electrode 50.The present embodiment
In display panel, since porous elastic material is contacted with electrode 50, thus on planarization layer 41 formed electrode 50 when, part
Electrode material can deposit in the hole of the porous elastic material in groove 4112, thus increase electrode 50 and planarization layer 41
Contact area, and then enhance the adhesion of electrode 50 Yu planarization layer 41.Display panel in above-described embodiment is being bent
When, electrode 50 is not easy peeling-off with planarization layer 41, and then further improves the bending resistance of display panel.
In one embodiment, elastic material is porous elastic material, and the porous elastic material in groove and pixel limit
Layer contact.Illustratively, as shown in figure 3, the porous elastic material in groove 4111 and 4113 is contacted with pixel confining layer 20.This
Display panel in embodiment forms pixel on planarization layer 41 since porous elastic material is contacted with pixel confining layer 20
When confining layers 20, the material of partial pixel confining layers can penetrate into the hole of the porous elastic material in groove 4111 and 4113, because
And the contact area of pixel confining layer 20 Yu planarization layer 41 is increased, and then enhance pixel confining layer 20 and planarization layer 41
Adhesion.When being bent, pixel confining layer 20 and planarization layer 41 are not susceptible to shell display panel in above-described embodiment
From, and then further improve the bending resistance of display panel.
In one embodiment, multiple grooves 411 are provided in planarization layer 41, on the upper surface of planarization layer 41,
There are many horizontal extension length of multiple grooves 411.Horizontal extension in the application refers in the plane for being parallel to substrate 30
Extend, i.e., extends in the x-y plane shown in Fig. 4.Fig. 4 shows flat in display panel in the application one embodiment
Change the top view of layer.In Fig. 4, illustratively, multiple grooves 411 are provided in planarization layer 41, and groove 411 is in the side x
There are many upward development lengths.For example, the longer groove of horizontal extension length is arranged in the biggish region of stress in bending, with
Stress is avoided excessively to concentrate.As shown in figure 4, display panel is longer equipped with horizontal extension length at the position close to X broken line
Groove, and the shorter groove of horizontal extension length is equipped at the position far from X broken line.In this way, display panel is along X broken line
When being bent, close to X broken line position at generate stress it is larger, due to close to X broken line groove horizontal extension length compared with
It is long, so can preferably buffer to stress, and then improve the bending resistance of display panel.
In one embodiment, multiple grooves 411 are provided in planarization layer 41, on the upper surface of planarization layer 41,
The horizontal extension direction of multiple grooves is different.As shown in figure 5, illustratively, multiple grooves 411 are provided in planarization layer 41,
And the horizontal extension direction of multiple grooves 411 is different, and part of trench 411 extends in the x-direction, and part of trench extends in the y-direction.
It can be set according to actual needs the horizontal extension direction of multiple grooves.As shown in figure 5, planarization layer 41 is equal in the x and y direction
It is provided with groove.When display panel is bent along X broken line, the groove extended in the x-direction can preferably buffer display surface at this time
The stress that intralamellar part generates.When display panel is bent along Y broken line, the groove extended in the y-direction can preferably be buffered at this time
The stress generated inside display panel.In this way, the bending resistance of display panel is improved.In other embodiments, it planarizes
The groove that other directions in x-y plane extend, such as the groove extended along 45 degree of angles can also be set in layer, work as display surface
When plate is bent in the direction, the groove extended in the direction can preferably buffer answering for display panel inside generation at this time
Power, so as to improve the bending resistance of display panel.
In one embodiment, the quantity of groove has multiple, and the quantity positioned at the groove of display panel central area is greater than
Positioned at the quantity of the groove of display panel fringe region.As shown in fig. 6, display panel can be divided into central area 61 and fringe region
62.In Fig. 6, it is provided with multiple grooves 411 in planarization layer 41, and is located at the groove of central area 61 compared to marginal zone
The groove number in domain 62 is more.Since when display panel is bent, stress suffered by central area is greater than suffered by fringe region
Stress, therefore, in the planarization layer of display panel central area be arranged comparatively dense groove can preferably buffer center
Stress suffered by region, to help to improve the bending resistance of display panel and extend the service life of display panel.
In one embodiment, groove can be arranged regularly, and the spacing between the two neighboring groove in groove
For 1mm-5mm.In one embodiment, the spacing between the two neighboring groove in groove is 1mm.In one embodiment,
The spacing between two neighboring groove in groove is 2mm.In one embodiment, between the two neighboring groove in groove
Spacing is 3mm.In one embodiment, the spacing between the two neighboring groove in groove is 5mm.
The problems such as current display panel will appear film layer removing or is broken after being bent 100,000 times or so, and this Shen
Please display panel in embodiment after being bent 100,000 times, still be able to well show.Thus, the above embodiments of the present application
In the bending resistance of display panel be greatly improved compared to the bending resistance of current display panel, correspondingly, this
Apply for that the service life of the display panel provided also greatly extends.
The application also provides a kind of display device, including the display panel in any one above-mentioned embodiment.
The display device of the application can be computer monitor or other electronic consoles.When the display device is only to show
It can also include: cover board when device, for carrying out closed protective to display panel.
The display device of the application is also possible to the mobile device of such as mobile phone, tablet computer.When the display device is to move
When dynamic equipment, should also include: driving device.Driving device can be set under display panel flexible substrate, for display surface
Luminescent device on plate carries out electric drive, so that luminescent device be made to shine under driving device driving.
Above-mentioned display device, including the display panel in any one above-mentioned embodiment, due to the array layer of display panel
It is provided with groove in planarization layer in group, and fills resilient material in groove, therefore when display device is bent, answers
Power can be discharged to the elastic material in groove, thus have more cushion spaces, can effectively absorb and release stress, from
And the service life for achieving the purpose that the bending resistance for improving display device and extending display device.
Each technical characteristic of above embodiments can be combined arbitrarily, for simplicity of description, not to above-described embodiment
In each technical characteristic it is all possible combination be all described, as long as however, the combination of these technical characteristics be not present lance
Shield all should be considered as described in this specification.
Above embodiments only express several embodiments of the invention, and the description thereof is more specific and detailed, but can not be because
This and be construed as limiting the scope of the patent.It should be pointed out that for those of ordinary skill in the art, not
Under the premise of being detached from present inventive concept, various modifications and improvements can be made, and these are all within the scope of protection of the present invention.Cause
This, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of display panel characterized by comprising
Array layer group, wherein
The array layer group includes the planarization layer in top layer, is provided with groove in the planarization layer, fills out in the groove
Filled with elastic material.
2. display panel according to claim 1, which is characterized in that the groove only longitudinally prolongs in the planarization layer
It stretches；
Preferably, the longitudinal profile of the groove is rectangle or trapezoidal.
3. display panel according to claim 2, which is characterized in that the diameter of the depth of the groove and the groove
Ratio is between 10:1 and 5:1.
4. according to claim 1 to display panel described in any one of 3, which is characterized in that the quantity of the groove be it is multiple,
On the upper surface of the planarization layer, there are many horizontal extension length of the multiple groove.
5. display panel according to claim 4, which is characterized in that described more on the upper surface of the planarization layer
The horizontal extension direction of at least partly groove in a groove is different.
6. according to claim 1 to display panel described in any one of 5, which is characterized in that the quantity of the groove have it is multiple,
It is greater than the quantity of the groove positioned at the display panel fringe region positioned at the quantity of the groove of the display panel central area.
7. according to claim 1 to display panel described in any one of 6, which is characterized in that formed on the planarization layer
There are pixel openings, the groove deviates the orthographic projection of the pixel openings.
8. according to claim 1 to display panel described in any one of 7, which is characterized in that formed on the planarization layer
There is electrode,
The quantity of the groove be it is multiple, at least one groove is within the scope of the orthographic projection of the electrode.
9. display panel according to claim 1 to 8, which is characterized in that the elastic material is poroelasticity
Material.
10. a kind of display device, which is characterized in that including display panel as claimed in any one of claims 1-9 wherein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811126038.8A CN109378327B (en) | 2018-09-26 | 2018-09-26 | Display panel and display device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811126038.8A CN109378327B (en) | 2018-09-26 | 2018-09-26 | Display panel and display device |
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| CN109378327A true CN109378327A (en) | 2019-02-22 |
| CN109378327B CN109378327B (en) | 2021-02-12 |
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| CN201811126038.8A Active CN109378327B (en) | 2018-09-26 | 2018-09-26 | Display panel and display device |
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Cited By (5)
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| CN109755287A (en) * | 2019-02-25 | 2019-05-14 | 武汉华星光电半导体显示技术有限公司 | A kind of flexible OLED devices and preparation method thereof |
| CN110112191A (en) * | 2019-04-29 | 2019-08-09 | 武汉华星光电半导体显示技术有限公司 | A kind of display panel, display device and its manufacturing method |
| CN111146257A (en) * | 2019-12-19 | 2020-05-12 | 云谷（固安）科技有限公司 | Display panel, manufacturing method thereof and display device |
| CN111312790A (en) * | 2020-02-28 | 2020-06-19 | 上海天马微电子有限公司 | Display panel, manufacturing method and flexible display device |
| CN114141828A (en) * | 2021-11-17 | 2022-03-04 | 深圳市华星光电半导体显示技术有限公司 | Display panel, manufacturing method of display panel and display device |
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| CN114141828A (en) * | 2021-11-17 | 2022-03-04 | 深圳市华星光电半导体显示技术有限公司 | Display panel, manufacturing method of display panel and display device |
| CN114141828B (en) * | 2021-11-17 | 2024-02-06 | 深圳市华星光电半导体显示技术有限公司 | Display panel, manufacturing method of display panel and display device |
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|---|---|
| CN109378327B (en) | 2021-02-12 |
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