CN109148720A - A kind of organic light emitting display panel and device - Google Patents
A kind of organic light emitting display panel and device Download PDFInfo
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- CN109148720A CN109148720A CN201810967562.1A CN201810967562A CN109148720A CN 109148720 A CN109148720 A CN 109148720A CN 201810967562 A CN201810967562 A CN 201810967562A CN 109148720 A CN109148720 A CN 109148720A
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- display panel
- light emitting
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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
- H10K50/82—Cathodes
- H10K50/824—Cathodes combined with auxiliary electrodes
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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
- H10K50/82—Cathodes
- H10K50/822—Cathodes characterised by their shape
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/131—Interconnections, e.g. wiring lines or terminals
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Abstract
The present invention provides a kind of organic light emitting display panel, comprising: underlay substrate；On underlay substrate and the first power supply line, auxiliary electrode layer and the cathode layer that are cascading, first power supply line is electrically connected with auxiliary electrode layer, auxiliary electrode layer is electrically connected with cathode layer, and the first power supply line provides first voltage signal by auxiliary electrode layer for cathode layer；Organic light emitting display panel further includes bent area, and organic light emitting display panel is bent around first direction, and auxiliary electrode layer includes vacancy section in bent area, and vacancy section includes at least one opening area.Open region does not have ITO/Ag/ITO material.The material stress that the ITO/Ag/ITO layer of auxiliary electrode layer is subject to when bent area is bent is alleviated in the open region for being not provided with ITO/Ag/ITO material, and ITO/Ag/ITO fault rupture is avoided to lead to display panel not displayable image.
Description
[technical field]
The present invention relates to field of display technology more particularly to a kind of organic light emitting display panel and devices.
[background technique]
Currently, display technology has penetrated into the various aspects of people's daily life, and correspondingly, more and more materials and skill
Art is used for display screen.Now, the display screen of mainstream mainly has liquid crystal display and Organic Light Emitting Diode (OLED) display
Screen.Wherein, due to the self-luminosity energy of OLED display screen, the backlight module most to consume energy is eliminated compared to liquid crystal display, because
This has the advantages that more energy efficient；In addition, OLED display screen also has the characteristics that flexible bendable, by using flexible base board,
The multiple conductive layers sequentially formed on flexible base board, including thin film transistor (TFT) drive array layer, anode layer, organic luminous layer, yin
Pole layer and thin-film encapsulation layer, so that OLED display screen has excellent bent performance.
It is aobvious to flexibility as user is more and more vigorous to the flexible bendable of display terminal product or the demand of folding property
The requirement of the stability and number resistant to bending of showing product is higher and higher.But when the bending of the bent area of display panel, indium tin oxygen
Compound (ITO) material is easy to be broken by material stress, if using the auxiliary electrode layer not hollow out of ITO in bent area,
The ITO/Ag/ITO layer of auxiliary electrode layer may be broken and lead to display panel not displayable image.
[summary of the invention]
In view of this, the present invention provides a kind of organic light emitting display panel and device, to solve the above-mentioned of the prior art
Problem.
On the one hand, the present invention provides a kind of organic light emitting display panel, comprising:
Underlay substrate；
On the underlay substrate and the first power supply line, auxiliary electrode layer and the cathode layer that are cascading, institute
The first power supply line to be stated to be electrically connected with the auxiliary electrode layer, the auxiliary electrode layer is electrically connected with the cathode layer, and described first
Power supply line provides first voltage signal by the auxiliary electrode layer for the cathode layer；
The organic light emitting display panel further includes bent area, and the organic light emitting display panel is curved around first direction
Folding, the auxiliary electrode layer include vacancy section in the bent area, and the vacancy section includes at least one opening area.
Optionally, the open region in the bent area area S1 and the auxiliary electrode layer in the bent area
Area S2 meet: 0.3≤S1/S2≤1.
Optionally, the open region extends along the first direction.
Optionally, multiple open regions arrange in a second direction, and the second direction is perpendicular to the first direction.
Optionally, ring structure is presented in the open region.
Optionally, polygonized structure is presented in the open region.
Optionally, the auxiliary electrode layer is not set in the bent area.The auxiliary electrode layer is in the bent area
The only described open region.
Optionally, the organic light emitting display panel includes viewing area and the non-display area positioned at the viewing area periphery；
The auxiliary electrode layer is located at the non-display area, and is arranged around the viewing area periphery.
Optionally, the organic light emitting display panel further includes grid line and data line, and the grid line is set to first
Metal layer, the data line are set to second metal layer；
Wherein, first power supply line and the data line same layer are arranged.
Optionally, the organic light emitting display panel further includes anode layer, and the auxiliary electrode layer and the anode layer are same
Layer is arranged and material is identical.
Optionally, flatness layer is set between first power supply line and the auxiliary electrode layer, first power supply line with
The auxiliary electrode layer is electrically connected by the via hole being set in the flatness layer；
The cathode layer is set on the auxiliary electrode layer and is electrically connected to each other.
On the other hand, the present invention provides a kind of organic light-emitting display device, comprising:
The organic light emitting display panel.
Above-mentioned technical proposal has the following beneficial effects: that the auxiliary electrode layer of the invention hollow out in bent area forms hollow out
Area, vacancy section include open region, wherein open region does not have ITO/Ag/ITO material.It is not provided with the opening of ITO/Ag/ITO material
The material stress that the ITO/Ag/ITO floor of auxiliary electrode layer is subject to when bent area is bent is alleviated in area, avoids ITO/Ag/ITO layers from breaking
Splitting causes display panel that cannot show image.In addition, auxiliary electrode layer is electrically connected at the vacancy section of setting ITO/Ag/ITO material
It connects the first power supply line and is electrically connected cathode layer.This ensures the first power supply line when the auxiliary electrode layer hollow out in bent area
Power supply signal can input the Organic Light Emitting Diode in viewing area by vacancy section.
[Detailed description of the invention]
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for this field
For those of ordinary skill, without creative efforts, it can also be obtained according to these attached drawings other attached drawings.
Figure 1A is a kind of floor map of organic light emitting display panel 100 of the embodiment of the present invention；
Figure 1B is the first diagrammatic cross-section of bent area 103；
Fig. 1 C is the second diagrammatic cross-section of bent area 103；
Fig. 2A is a kind of floor map of organic light emitting display panel 200A of another embodiment of the present invention；
Fig. 2 B is the floor map of another organic light emitting display panel 200B；
Fig. 3 A is a kind of floor map of organic light emitting display panel 300 of another embodiment of the present invention；
Fig. 3 B is a kind of diagrammatic cross-section of organic light emitting display panel 300 of another embodiment of the present invention；
Fig. 4 A is a kind of floor map of organic light emitting display panel 400 of another embodiment of the present invention；
Fig. 4 B is a kind of diagrammatic cross-section of organic light emitting display panel 400 of another embodiment of the present invention；
Fig. 5 A is a kind of floor map of organic light emitting display panel 500 of another embodiment of the present invention；
Fig. 5 B is a kind of diagrammatic cross-section of organic light emitting display panel 500 of another embodiment of the present invention；
Fig. 6 A is a kind of floor map of organic light emitting display panel 600 of another embodiment of the present invention；
Fig. 6 B is a kind of diagrammatic cross-section of organic light emitting display panel 600 of another embodiment of the present invention；
Fig. 7 A is a kind of floor map of organic light emitting display panel 700 of another embodiment of the present invention；
Fig. 7 B is a kind of diagrammatic cross-section of organic light emitting display panel 700 of another embodiment of the present invention；
Fig. 8 A is a kind of floor map of organic light emitting display panel 800 of another embodiment of the present invention；
Fig. 8 B is a kind of diagrammatic cross-section of organic light emitting display panel 800 of another embodiment of the present invention；
Fig. 9 is a kind of floor map of organic light-emitting display device 950 of another embodiment of the present invention.
[specific embodiment]
For a better understanding of the technical solution of the present invention, being retouched in detail to the embodiment of the present invention with reference to the accompanying drawing
It states.
It will be appreciated that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
Its embodiment, shall fall within the protection scope of the present invention.
The term used in embodiments of the present invention is only to be not intended to be limiting merely for for the purpose of describing particular embodiments
The present invention.In the embodiment of the present invention and the "an" of singular used in the attached claims, " described " and "the"
It is also intended to including most forms, unless the context clearly indicates other meaning.
It should be appreciated that term "and/or" used herein is only a kind of incidence relation for describing affiliated partner, indicate
There may be three kinds of relationships, for example, A and/or B, can indicate: individualism A, exist simultaneously A and B, individualism B these three
Situation.In addition, character "/" herein, typicallys represent the relationship that forward-backward correlation object is a kind of "or".
It will be appreciated that though XXX may be described in embodiments of the present invention using term first, second, third, etc., but
These XXX should not necessarily be limited by these terms.These terms are only used to for XXX being distinguished from each other out.For example, not departing from implementation of the present invention
In the case where example range, the first XXX can also be referred to as the 2nd XXX, and similarly, the 2nd XXX can also be referred to as the first XXX.
Figure 1A is a kind of floor map of organic light emitting display panel 100 of the embodiment of the present invention.Display panel 100 includes
Bent area 103 and non-bent area 104.Figure 1B is the first diagrammatic cross-section of bent area 103.Fig. 1 C is the second of bent area 103
Diagrammatic cross-section.As shown in Figure 1A to 1C, organic light emitting display panel 100 include underlay substrate 110, it is the first power supply line 120, auxiliary
Help electrode layer 130 and cathode layer 140；First power supply line 120, auxiliary electrode layer 130 and cathode layer 140 are located at underlay substrate
On 110, and it is cascading.First power supply line 120 is electrically connected with auxiliary electrode layer 130, auxiliary electrode layer 130 and cathode
Layer 140 is electrically connected, and the first power supply line 120 is that cathode layer 140 provides first voltage signal by auxiliary electrode layer 130.Organic hair
Light display panel 100 is bent around first direction 101, and auxiliary electrode layer 130 includes vacancy section 132, hollow out in bent area 103
Area 132 includes at least one opening area 133.Wherein, the leading using ITO (indium tin oxide), Ag (silver) etc. of auxiliary electrode layer 130
Electric material, such as 100 nanometers of ITO/Ag/ITO three-deckers to 110 nano thickness.First direction 101 is perpendicular to organic light emission
Two first sides 105 of display panel 100 and it is parallel to two second sides 106.One bent area 103 is located at organic hair
The middle section region of light display panel 100, two non-bent areas 104 are located at the two side areas of organic light emitting display panel 100, and one
Bent area 103 is clipped between two non-bent areas 104.
Auxiliary electrode layer 130 when organic light emitting display panel 100 is bent around first direction 101, in bent area 103
It deforms therewith, ITO layer therein is acted on by material stress.If organic light emitting display panel more than 100 times bendings continue
Bending, then being easy to be broken and cause auxiliary electrode layer 130 to break in bent area 103 by the ITO layer that material stress acts on
Road.
Auxiliary electrode layer 130 in the embodiment of the present invention includes vacancy section 132 in bent area 103, and vacancy section 132 includes
At least one opening area 133, open region 133 do not set ITO material.In this way, in auxiliary electrode layer 130 in bent area 103, setting
The region of ITO material becomes smaller.When organic light emitting display panel 100 is bent around first direction 101, auxiliary electrode layer 130 exists
The material stress being subject in bent area 103 becomes smaller, and the material stress effect that ITO layer therein is subject to is alleviated.This can avoid
Open circuit due to ITO layer is broken in bent area 103 of auxiliary electrode layer 130.Meanwhile auxiliary electrode layer 130 is in bent area 103 and
The electrical connection of one power supply line 120, and be electrically connected with cathode layer 140, this can ensure that first voltage signal passes through in bent area 103
First power supply line 120, auxiliary electrode layer 130, cathode layer 140 transmit.
Fig. 2A is a kind of floor map of organic light emitting display panel 200A of another embodiment of the present invention.Fig. 2 B is another
The floor map of kind organic light emitting display panel 200B.Organic light emitting display panel 200A, 200B respectively includes bent area
203A, 203B, non-bent area 204A, 204B.Organic light emitting display panel 200A, 200B respectively further comprises auxiliary electrode layer
230A,230B.Auxiliary electrode layer 230A, 230B include vacancy section 232A, 232B in bent area 203A, 203B respectively.Hollow out
Area 232A, 232B respectively include open region 233A, 233B.Auxiliary electrode layer 230A, 230B use ITO material.Open region 233A,
233B does not set ITO material.As shown in Figure 2 A, area S1 of the open region 233A in the 203A of bent area and auxiliary electrode layer 230A exist
Area S2 in the 203A of bent area meets: 0.3≤S1/S2≤1.In the 203A of bent area, the small portion of the one of auxiliary electrode layer 230A
Subregion is not open region 233A, and rest part is set as open region 233A.As shown in Figure 2 B, open region 233B is in bent area 203B
Area S2 of the interior area S1 and auxiliary electrode layer 230B in the 203B of bent area meets: S1/S2≤0.3.In bent area 203B
Interior, the sub-fraction of auxiliary electrode layer 230B is open region 233B.The area of open region 233A is greater than the area of open region 233B.
Because the area of open region 233B is smaller, auxiliary electrode layer 230B has more ITO material in the 203B of bent area.This is just
The material stress for causing auxiliary electrode layer 230B to be subject in bending is larger and higher a possibility that fracture.The embodiment of the present invention
It is preferred that open region 233A.Because the area of open region 233A is larger, in the 203A of bent area auxiliary electrode layer 230A have compared with
Few ITO material.This results in auxiliary electrode layer 230A, and in bent area 203A bending, the material stress that is subject to is smaller and breaks
A possibility that splitting is lower.The open region 233A of larger area prevents working well for auxiliary electrode layer 230A fracture.
Fig. 3 A is a kind of floor map of organic light emitting display panel 300 of another embodiment of the present invention.Fig. 3 B is this hair
A kind of bright diagrammatic cross-section of organic light emitting display panel 300 of another embodiment.Organic light emitting display panel 300 includes bent area
303 and non-bent area 304.Organic light emitting display panel 300 further includes auxiliary electrode layer 330 and the first power supply line 320, cathode layer
340.Auxiliary electrode layer 330 includes vacancy section 332 in bent area 303.Vacancy section 332 includes open region 333.Auxiliary electrode layer
330 use ITO material.Open region 333 does not set ITO material.Open region 333 extends along first direction 301.First direction 301 hangs down
Directly in two first sides 305 of organic light emitting display panel 300, be parallel to two second of organic light emitting display panel 300
Side 306, and organic light emitting display panel 300 can be bent around first direction 301.Open region 333 extend direction with
The direction that organic light emitting display panel 300 surrounds when bending is consistent.Open region 333 can run through auxiliary electrode layer 330, Huo Zheke
To be located at the middle part of vacancy section 332.In addition, auxiliary electrode layer 330 at the region of 333 two sides of open region with the first power supply line
320, cathode layer 340 is electrically connected.When organic light emitting display panel 300 is bent around first direction 301, auxiliary electrode layer 330
By material stress in bent area 303, wherein some material stress is approximately perpendicular to first direction 301.Along first party
The open region 333 extended to 301 can alleviate the material stress perpendicular to first direction 301, avoid auxiliary electrode layer 330 curved
Folding area 303 is broken when bending.Meanwhile auxiliary electrode layer 330 is electric with the first power supply line 320, cathode layer 340 in bent area 303
Connection, this ensures that the first power supply line 320, auxiliary electrode layer 330, cathode layer 340 can transmit the first electricity in bent area 303
Press signal.
Fig. 4 A is a kind of floor map of organic light emitting display panel 400 of another embodiment of the present invention.Fig. 4 B is this hair
A kind of bright diagrammatic cross-section of organic light emitting display panel 400 of another embodiment.Organic light emitting display panel 400 includes bent area
403 and non-bent area 404.Organic light emitting display panel 400 further includes auxiliary electrode layer 430 and the first power supply line 420, cathode layer
440.Auxiliary electrode layer 430 includes vacancy section 432 in bent area 403.Vacancy section 432 includes open region 433.Auxiliary electrode layer
430 use ITO material.Open region 433 does not set ITO material.Multiple open regions 433 extend along first direction 401, and along second
Direction 402 arranges.First direction 401 perpendicular to organic light emitting display panel 400 two first sides 405, be parallel to it is organic
Two second sides 406 of light emitting display panel 400, and organic light emitting display panel 400 can be curved around first direction 401
Folding.Second direction 402 is parallel to two first sides 405 of organic light emitting display panel 400, perpendicular to organic light emitting display face
Two second sides 406 of plate 400, and perpendicular to first direction 401.The arrangement of multiple open regions 433 is from bent area 403
First side is nearby arrived near second side of bent area 403.Wherein, the adjacent open region 433 of any two has same spacing.Separately
Outside, auxiliary electrode layer 430 is electrically connected at the region of 433 two sides of open region with the first power supply line 420, cathode layer 440.When organic
When light emitting display panel 400 is bent around first direction 401, auxiliary electrode layer 430 in bent area 403 by material stress,
And auxiliary electrode layer 430 of the material stress in bent area 403.Extend along first direction 401 and in a second direction 402
Multiple open regions 433 of arrangement can alleviate many places material stress of the auxiliary electrode layer 430 in bent area 403, rather than only
Alleviate the material stress of a part.This can avoid auxiliary electrode layer 430 and is broken when bent area 403 is bent.Meanwhile assisting electricity
Pole layer 430 is electrically connected in bent area 403 with the first power supply line 420, cathode layer 440, this ensures the first power supply line 420, auxiliary
Help electrode layer 430, cathode layer 440 that can transmit first voltage signal in bent area 403.
Fig. 5 A is a kind of floor map of organic light emitting display panel 500 of another embodiment of the present invention.Fig. 5 B is this hair
A kind of bright diagrammatic cross-section of organic light emitting display panel 500 of another embodiment.Organic light emitting display panel 500 includes bent area
503 and non-bent area 504.Organic light emitting display panel 500 further includes auxiliary electrode layer 530 and the first power supply line 520, cathode layer
540.Auxiliary electrode layer 530 includes vacancy section 532 in bent area 503.Vacancy section 532 includes open region 533.Auxiliary electrode layer
530 use ITO material.Open region 533 does not set ITO material.Ring structure is presented in open region 533.The ring structure of open region 533
Including multiple circular holes.Multiple circular holes approximate can have same diameter, and can run through auxiliary electrode layer 530.Multiple circular holes
Arrangement near the first side of bent area 503 near second side of bent area 503.Wherein, the adjacent circular hole of any two
With same spacing.In addition, ITO/Ag/ITO layer of the auxiliary electrode layer 530 in bent area 503 and the first power supply line 520, yin
Pole layer 540 is electrically connected.When organic light emitting display panel 500 is around the bending amplitude of the bending of first direction 501 and bent area 503
When larger, the material stress that auxiliary electrode layer 530 is subject in bent area 503 is larger.The open region 533 of ring structure has good
Good flexibility, bending amplitude of the ITO layer therein in bent area 503 remain to remain intact when larger.This can avoid auxiliary electricity
Pole layer 530 is broken when bent area 503 is substantially bent.Meanwhile auxiliary electrode layer 530 in bent area 503 with the first power supply line
520, cathode layer 540 is electrically connected, this ensures the first power supply line 520, auxiliary electrode layer 530, cathode layer 540 in bent area 503
It is interior to transmit first voltage signal.
Fig. 6 A is a kind of floor map of organic light emitting display panel 600 of another embodiment of the present invention.Fig. 6 B is this hair
A kind of bright diagrammatic cross-section of organic light emitting display panel 600 of another embodiment.Organic light emitting display panel 600 includes bent area
603 and non-bent area 604.Organic light emitting display panel 600 further includes auxiliary electrode layer 630 and the first power supply line 620, cathode layer
640.Auxiliary electrode layer 630 includes vacancy section 632 in bent area 603.Vacancy section 632 includes open region 633.Auxiliary electrode layer
630 use ITO material.Open region 633 does not set ITO material.Polygonized structure is presented in open region 633.The polygon of open region 633
Structure includes multiple holes.Multiple holes approximate can have same bore, and can run through auxiliary electrode layer 630.Multiple holes
Arrangement is continuous, and second side along second direction 602 near the first side of bent area 603 to bent area 603 is attached
Closely.Wherein, the adjacent hole of any two alternately arranges.In addition, ITO/Ag/ of the auxiliary electrode layer 630 in bent area 603
ITO layer is electrically connected with the first power supply line 620, cathode layer 640.When organic light emitting display panel 600 is bent around first direction 601
When, auxiliary electrode layer 630 is in bent area 603 by material stress.Along 602 continuous arrangement of second direction in open region 633
Multiple holes can fifty-fifty alleviate material of the auxiliary electrode layer 630 along second direction 602 everywhere in bent area 603 and answer
Power.This can avoid auxiliary electrode layer 630 and is broken when bent area 603 is bent.Meanwhile auxiliary electrode layer 630 is in bent area 603
It is electrically connected with the first power supply line 620, cathode layer 640, this ensures the first power supply line 620, auxiliary electrode layer 630, cathode layer 640
First voltage signal can be transmitted in bent area 603.
Fig. 7 A is a kind of floor map of organic light emitting display panel 700 of another embodiment of the present invention.Fig. 7 B is this hair
A kind of bright diagrammatic cross-section of organic light emitting display panel 700 of another embodiment.Organic light emitting display panel 700 includes bent area
703 and non-bent area 704.Organic light emitting display panel 700 further includes auxiliary electrode layer 730 and the first power supply line 720, cathode layer
740.Auxiliary electrode layer 730 includes vacancy section 732 in bent area 703.Vacancy section 732 includes open region 733.Auxiliary electrode layer
730 use ITO material.Open region 733 does not set ITO material.Auxiliary electrode layer 730 only has open region 733 in bent area 703.
There is no ITO material in bent area 703.First power supply line 720 is not connected in bent area 703 with cathode layer 740.In non-bent area
In 704, auxiliary electrode layer 730 is electrically connected with the first power supply line 720, cathode layer 740 respectively.Cathode layer in non-bent area 704
740 are electrically connected with the cathode layer 740 in bent area 703.When organic light emitting display panel 700 is bent around first direction 701,
Auxiliary electrode layer 730 only has open region 733 in bent area 703 and not will receive the effect of material stress.This can keep away completely
Exempt from the fracture when bent area 703 is bent of auxiliary electrode layer 730.Meanwhile auxiliary electrode layer 730 in non-bent area 704 respectively with
First power supply line 720, cathode layer 740 are electrically connected, and the cathode layer 740 in non-bent area 704 and the cathode in bent area 703
Layer 740 is electrically connected, this ensures the first power supply line 720 in non-bent area 704, the auxiliary electrode layer in non-bent area 704
730, cathode layer 740 can transmit first voltage signal to bent area 703.
Fig. 8 A is a kind of floor map of organic light emitting display panel 800 of another embodiment of the present invention.Fig. 8 B is this hair
A kind of bright diagrammatic cross-section of organic light emitting display panel 800 of another embodiment.Organic light emitting display panel includes viewing area 801
With the non-display area 802 for being located at 801 periphery of viewing area；Auxiliary electrode layer 830 is located at non-display area 802, and surrounds viewing area
The setting of 801 peripheries.Organic light emitting display panel 800 further includes bent area 803 and non-bent area 804.Viewing area 801 and bent area
803 part superpositions, non-display area 802 and 803 part superposition of bent area.Around the auxiliary electrode layer of 801 periphery of viewing area setting
830 pass through bent area 803 and non-bent area 804, and are electrically connected respectively with the first power supply line 820, cathode layer 840.When non-aobvious
Show the auxiliary electrode layer 830 in area 802 when the whole or local hollow out in bent area 803 is open region 833, in non-bent area 804
Auxiliary electrode layer 830 be electrically connected respectively with the first power supply line 820, cathode layer 840, and the cathode layer in non-bent area 804
840 are electrically connected with the cathode layer 840 in bent area 803, and first voltage signal can pass through the first power supply in non-bent area 804
The cathode layer 840 in auxiliary electrode layer 830, non-bent area 804, the cathode in bent area 803 in line 820, non-bent area 804
Layer 840, into bent area 803.This ensures transmission of the first voltage signal in bent area 803.
Organic light emitting display panel 800 further includes grid line and data line, and grid line is set to the first metal layer, data line
It is set to second metal layer；Wherein, the first power supply line 820 is arranged with data line same layer.The first metal layer and second metal layer position
Different film layers and different zones in display panel 800.First power supply line 820 transmits first voltage signal, gateline transmission
Scanning drive signal or transmitting driving signal, data line transmit data drive signal.The first voltage of first power supply line 820 is believed
Number, the scanning drive signal of grid line or transmitting driving signal, data line data drive signal input display panel 800 picture
Plain driving unit drives organic light-emitting units electroluminescent.
As shown in Figure 8 B, organic light emitting display panel 800 further includes anode layer 850, auxiliary electrode layer 830 and anode layer
850 same layers are arranged and material is identical.Anode layer 850 is set in viewing area 801.Auxiliary electrode layer 830 is set to non-display area
In 802.The cathode layer 840 being electrically connected with auxiliary electrode layer 830 is located in viewing area 801 and non-display area 802.Anode layer 850
Organic luminous layer 860 is set between the cathode layer 840 in viewing area 801.Anode layer 850, organic luminous layer 860, viewing area
Cathode layer 840 in 801 constitutes multiple organic light-emitting units of display panel 800.Auxiliary electrode layer 830 respectively with the first power supply
Line 820, cathode layer 840 are electrically connected, and transmission first voltage signal inputs organic light-emitting units.Anode layer 850 connects display panel
The driving signal of 800 pixel drive unit, pixel drive unit inputs organic light-emitting units by anode layer 850.This makes to have
Machine luminescence unit electroluminescent.
As shown in Figure 8 B, flatness layer 810, the first power supply line are set between the first power supply line 820 and auxiliary electrode layer 830
820 are electrically connected with auxiliary electrode layer 830 by the via hole 811 being set in flatness layer 810；Cathode layer 840 is set to auxiliary electricity
On pole layer 830 and it is electrically connected to each other.Auxiliary electrode layer 830 has ITO/Ag/ITO.In order to alleviate the auxiliary in bent area 803
The material stress that electrode layer 830 is subject in bending, the local hollow out of auxiliary electrode layer 830 and ITO/Ag/ITO therein setting
In on flatness layer 810 without being set on the first power supply line 820.At this moment, via hole 811 is set in flatness layer 810 and connects first
Power supply line 820 and auxiliary electrode layer 830, can make the first power supply line 820, auxiliary electrode layer 830, the electrical connection of cathode layer 840 and
Transmit first voltage signal.
Fig. 9 is a kind of floor map of organic light-emitting display device 950 of another embodiment of the present invention.Organic light emitting display
Device 950 includes organic light emitting display panel 900.Organic light emitting display panel 900 is described in detail in the above-described embodiments, no longer
It repeats.Organic light-emitting display device 950 can be electronic equipment having a display function, such as mobile phone, computer, television set.?
In organic light emitting display panel 900, auxiliary electrode layer hollow out in bent area forms vacancy section, and vacancy section includes open region,
In, open region does not have ITO/Ag/ITO material.Alleviate the ITO/ of auxiliary electrode layer in the open region for being not provided with ITO/Ag/ITO material
The Ag/ITO layers of material stress being subject to when bent area is bent, avoid ITO/Ag/ITO fault rupture from causing display panel that cannot show
Image.In addition, auxiliary electrode layer is electrically connected the first power supply line and is electrically connected at the vacancy section of setting ITO/Ag/ITO material
Cathode layer.This ensures that the power supply signal of the first power supply line when the auxiliary electrode layer hollow out in bent area can pass through vacancy section
Input the Organic Light Emitting Diode in viewing area.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent substitution, improvement and etc. done be should be included within the scope of the present invention.
Claims (12)
1. a kind of organic light emitting display panel characterized by comprising
Underlay substrate；
On the underlay substrate and the first power supply line, auxiliary electrode layer and the cathode layer that are cascading, described
One power supply line is electrically connected with the auxiliary electrode layer, and the auxiliary electrode layer is electrically connected with the cathode layer, first power supply
Line provides first voltage signal by the auxiliary electrode layer for the cathode layer；
The organic light emitting display panel further includes bent area, and the organic light emitting display panel is bent around first direction, institute
It includes vacancy section that auxiliary electrode layer, which is stated, in the bent area, and the vacancy section includes at least one opening area.
2. organic light emitting display panel according to claim 1, which is characterized in that the open region is in the bent area
Area S2 in the bent area of area S1 and the auxiliary electrode layer meet: 0.3≤S1/S2≤1.
3. organic light emitting display panel according to claim 1, which is characterized in that the open region is along the first direction
Extend.
4. organic light emitting display panel according to claim 3, which is characterized in that multiple open regions are in a second direction
Arrangement, the second direction is perpendicular to the first direction.
5. organic light emitting display panel according to claim 1, which is characterized in that ring structure is presented in the open region.
6. organic light emitting display panel according to claim 1, which is characterized in that polygon knot is presented in the open region
Structure.
7. organic light emitting display panel according to claim 1, which is characterized in that the auxiliary electrode layer is in the bending
There was only the open region in area.
8. organic light emitting display panel according to claim 1, which is characterized in that the organic light emitting display panel includes
Viewing area and non-display area positioned at the viewing area periphery；
The auxiliary electrode layer is located at the non-display area, and is arranged around the viewing area periphery.
9. organic light emitting display panel according to claim 1, which is characterized in that the organic light emitting display panel is also wrapped
Grid line and data line are included, the grid line is set to the first metal layer, and the data line is set to second metal layer；
Wherein, first power supply line and the data line same layer are arranged.
10. organic light emitting display panel according to claim 1, which is characterized in that the organic light emitting display panel is also
Including anode layer, the auxiliary electrode layer is arranged with the anode layer same layer and material is identical.
11. organic light emitting display panel according to claim 1, which is characterized in that first power supply line with it is described auxiliary
It helps and flatness layer is set between electrode layer, first power supply line and the auxiliary electrode layer are by being set in the flatness layer
Via hole electrical connection；
The cathode layer is set on the auxiliary electrode layer and is electrically connected to each other.
12. a kind of organic light-emitting display device, which is characterized in that including organic light emission described in claim 1-11 any one
Display panel.
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| CN109148720B (en) | 2020-09-11 |
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