CN109148720B

CN109148720B - Organic light-emitting display panel and device

Info

Publication number: CN109148720B
Application number: CN201810967562.1A
Authority: CN
Inventors: 张春鹏; 杨星星
Original assignee: Wuhan Tianma Microelectronics Co Ltd
Current assignee: Wuhan Tianma Microelectronics Co Ltd
Priority date: 2018-08-23
Filing date: 2018-08-23
Publication date: 2020-09-11
Anticipated expiration: 2038-08-23
Also published as: CN109148720A

Abstract

The present invention provides an organic light emitting display panel, comprising: a substrate base plate; the first power line, the auxiliary electrode layer and the cathode layer are positioned on the substrate and sequentially stacked, the first power line is electrically connected with the auxiliary electrode layer, the auxiliary electrode layer is electrically connected with the cathode layer, and the first power line provides a first voltage signal for the cathode layer through the auxiliary electrode layer; the organic light emitting display panel further comprises a bending area, the organic light emitting display panel bends around the first direction, the auxiliary electrode layer comprises a hollow area in the bending area, and the hollow area comprises at least one opening area. The open area is free of ITO/Ag/ITO material. The opening area without the ITO/Ag/ITO material relieves the material stress on the ITO/Ag/ITO layer of the auxiliary electrode layer when the bending area is bent, and the phenomenon that the display panel cannot display images due to the fact that the ITO/Ag/ITO layer is broken is avoided.

Description

Organic light-emitting display panel and device

[ technical field ] A method for producing a semiconductor device

The present invention relates to the field of display technologies, and in particular, to an organic light emitting display panel and an organic light emitting display device.

[ background of the invention ]

Currently, display technologies have penetrated various aspects of people's daily lives, and accordingly, more and more materials and technologies are used for display screens. Nowadays, the mainstream display screens mainly include liquid crystal display screens and Organic Light Emitting Diode (OLED) display screens. Compared with a liquid crystal display screen, the OLED display screen saves a backlight module which consumes most energy due to the self-luminous performance of the OLED display screen, so that the OLED display screen has the advantage of energy conservation; in addition, the OLED display screen also has the characteristic of flexibility and bendability, and the plurality of conducting layers which are sequentially formed on the flexible substrate comprise a thin film transistor driving array layer, an anode layer, an organic light emitting layer, a cathode layer and a thin film packaging layer by adopting the flexible substrate, so that the OLED display screen has excellent bendability.

Along with the more vigorous demand of users on the flexible bending or folding performance of display terminal products, the requirements on the stability and the bending resistance times of the flexible display products are higher and higher. However, when the bending region of the display panel is bent, an Indium Tin Oxide (ITO) material is easily broken by material stress, and if the auxiliary electrode layer using ITO in the bending region is not hollowed out, the ITO/Ag/ITO layer of the auxiliary electrode layer may be broken and cause the display panel not to display an image.

[ summary of the invention ]

Accordingly, the present invention is directed to an organic light emitting display panel and an organic light emitting display device that solve the above-mentioned problems of the prior art.

In one aspect, the present invention provides an organic light emitting display panel including:

a substrate base plate;

the first power line, the auxiliary electrode layer and the cathode layer are positioned on the substrate and sequentially stacked, the first power line is electrically connected with the auxiliary electrode layer, the auxiliary electrode layer is electrically connected with the cathode layer, and the first power line provides a first voltage signal for the cathode layer through the auxiliary electrode layer;

the organic light emitting display panel further comprises a bending area, the organic light emitting display panel bends around the first direction, the auxiliary electrode layer comprises a hollow-out area in the bending area, and the hollow-out area comprises at least one opening area.

Optionally, an area S1 of the opening region in the bending region and an area S2 of the auxiliary electrode layer in the bending region satisfy: 0.3-S1/S2-1.

Optionally, the open area extends in the first direction.

Optionally, a plurality of the open areas are arranged in a second direction, the second direction being perpendicular to the first direction.

Optionally, the open area presents an annular configuration.

Optionally, the open area exhibits a polygonal structure.

Optionally, the auxiliary electrode layer is not disposed in the bending region. The auxiliary electrode layer has only the opening region in the bending region.

Optionally, the organic light emitting display panel includes a display region and a non-display region located at a periphery of the display region;

the auxiliary electrode layer is located in the non-display area and arranged around the periphery of the display area.

Optionally, the organic light emitting display panel further includes a gate line disposed on the first metal layer and a data line disposed on the second metal layer;

the first power line and the data line are arranged on the same layer.

Optionally, the organic light emitting display panel further includes an anode layer, and the auxiliary electrode layer and the anode layer are disposed on the same layer and are made of the same material.

Optionally, a planarization layer is disposed between the first power line and the auxiliary electrode layer, and the first power line and the auxiliary electrode layer are electrically connected through a via hole disposed in the planarization layer;

the cathode layer is arranged on the auxiliary electrode layer and electrically connected with each other.

In another aspect, the present invention provides an organic light emitting display device including:

the organic light emitting display panel.

The technical scheme has the following beneficial effects: the auxiliary electrode layer is hollowed in the bending area to form a hollowed-out area, the hollowed-out area comprises an opening area, and ITO/Ag/ITO materials are not contained in the opening area. The opening area without the ITO/Ag/ITO material relieves the material stress on the ITO/Ag/ITO layer of the auxiliary electrode layer when the bending area is bent, and the phenomenon that the display panel cannot display images due to the fact that the ITO/Ag/ITO layer is broken is avoided. In addition, the auxiliary electrode layer is electrically connected with the first power line and the cathode layer at the hollow area where the ITO/Ag/ITO material is arranged. Therefore, when the auxiliary electrode layer in the bending area is hollowed out, the power supply signal of the first power line can be input into the organic light emitting diode in the display area through the hollowed-out area.

[ description of the drawings ]

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1A is a schematic plan view of an organic light emitting display panel 100 according to an embodiment of the invention;

FIG. 1B is a first schematic cross-sectional view of inflection region 103;

FIG. 1C is a second schematic cross-sectional view of inflection region 103;

fig. 2A is a schematic plan view of an organic light emitting display panel 200A according to another embodiment of the invention;

fig. 2B is a schematic plan view of another organic light emitting display panel 200B;

fig. 3A is a schematic plan view of an organic light emitting display panel 300 according to another embodiment of the invention;

FIG. 3B is a schematic cross-sectional view of an OLED panel 300 according to another embodiment of the present invention;

fig. 4A is a schematic plan view illustrating an organic light emitting display panel 400 according to another embodiment of the present invention;

FIG. 4B is a schematic cross-sectional view illustrating an OLED panel 400 according to another embodiment of the present invention;

fig. 5A is a schematic plan view of an organic light emitting display panel 500 according to another embodiment of the invention;

FIG. 5B is a schematic cross-sectional view illustrating an OLED panel 500 according to another embodiment of the present invention;

fig. 6A is a schematic plan view of an organic light emitting display panel 600 according to another embodiment of the invention;

FIG. 6B is a schematic cross-sectional view illustrating an OLED panel 600 according to another embodiment of the present invention;

fig. 7A is a schematic plan view of an organic light emitting display panel 700 according to another embodiment of the invention;

FIG. 7B is a schematic cross-sectional view illustrating an OLED panel 700 according to another embodiment of the present invention;

fig. 8A is a schematic plan view of an organic light emitting display panel 800 according to another embodiment of the invention;

FIG. 8B is a schematic cross-sectional view illustrating an OLED panel 800 according to another embodiment of the present invention;

fig. 9 is a schematic plan view of an organic light emitting display device 950 according to another embodiment of the present invention.

[ detailed description ] embodiments

For better understanding of the technical solutions of the present invention, the following detailed descriptions of the embodiments of the present invention are provided with reference to the accompanying drawings.

It should be understood that the described embodiments are only some embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

It should be understood that although the terms first, second, third, etc. may be used to describe XXX in embodiments of the present invention, these XXX should not be limited to these terms. These terms are only used to distinguish XXX from each other. For example, a first XXX may also be referred to as a second XXX, and similarly, a second XXX may also be referred to as a first XXX, without departing from the scope of embodiments of the present invention.

Fig. 1A is a schematic plan view of an organic light emitting display panel 100 according to an embodiment of the invention. The display panel 100 includes a bending region 103 and a non-bending region 104. Fig. 1B is a first cross-sectional view of bending region 103. Fig. 1C is a second cross-sectional view of inflection region 103. As shown in fig. 1A to 1C, the organic light emitting display panel 100 includes a substrate 110, a first power line 120, an auxiliary electrode layer 130, and a cathode layer 140; the first power supply line 120, the auxiliary electrode layer 130, and the cathode layer 140 are located on the base substrate 110, and are sequentially stacked. The first power line 120 is electrically connected to the auxiliary electrode layer 130, the auxiliary electrode layer 130 is electrically connected to the cathode layer 140, and the first power line 120 provides a first voltage signal to the cathode layer 140 through the auxiliary electrode layer 130. The organic light emitting display panel 100 is bent around the first direction 101, the auxiliary electrode layer 130 includes a hollow area 132 in the bending area 103, and the hollow area 132 includes at least one opening area 133. The auxiliary electrode layer 130 is made of a conductive material such as ITO (indium tin oxide), Ag (silver), etc., for example, a 100 nm to 110 nm thick ITO/Ag/ITO three-layer structure. The first direction 101 is perpendicular to two first sides 105 and parallel to two second sides 106 of the organic light emitting display panel 100. One bending region 103 is located in the middle region of the organic light emitting display panel 100, two non-bending regions 104 are located in the two side regions of the organic light emitting display panel 100, and one bending region 103 is sandwiched between the two non-bending regions 104.

When the organic light emitting display panel 100 is bent around the first direction 101, the auxiliary electrode layer 130 in the bending region 103 is deformed accordingly, and the ITO layer therein is subjected to a material stress. If the organic light emitting display panel 100 is bent multiple times or continuously bent, the ITO layer subjected to the material stress is easily broken and causes the auxiliary electrode layer 130 to be open in the bending region 103.

In the embodiment of the invention, the auxiliary electrode layer 130 includes a hollow-out area 132 in the bending area 103, the hollow-out area 132 includes at least one opening area 133, and the opening area 133 is not provided with an ITO material. In this way, the area of the auxiliary electrode layer 130 in the bending region 103, in which the ITO material is provided, is reduced. When the organic light emitting display panel 100 is bent around the first direction 101, the material stress of the auxiliary electrode layer 130 in the bending region 103 is reduced, and the material stress of the ITO layer therein is relieved. This can prevent the auxiliary electrode layer 130 from being broken in the bending region 103 due to the ITO layer being broken. Meanwhile, the auxiliary electrode layer 130 is electrically connected to the first power line 120 at the bending region 103 and electrically connected to the cathode layer 140, which may ensure that the first voltage signal is transmitted through the first power line 120, the auxiliary electrode layer 130 and the cathode layer 140 in the bending region 103.

Fig. 2A is a schematic plan view of an organic light emitting display panel 200A according to another embodiment of the invention. Fig. 2B is a schematic plan view of another organic light emitting display panel 200B. The organic light emitting

display panels

200A and 200B include bending

regions

203A and 203B, and

non-bending regions

204A and 204B, respectively. The organic light emitting

display panels

200A and 200B further include

auxiliary electrode layers

230A and 230B, respectively. The

auxiliary electrode layers

230A and 230B respectively include

hollow areas

232A and 232B in the

bending regions

203A and 203B. The hollow-out

areas

232A, 232B include opening

areas

233A, 233B, respectively. The

auxiliary electrode layers

230A and 230B are made of ITO. The

opening regions

233A, 233B are not provided with an ITO material. As shown in fig. 2A, an area S1 of the opening region 233A in the bending region 203A and an area S2 of the auxiliary electrode layer 230A in the bending region 203A satisfy: 0.3-S1/S2-1. In the bending region 203A, a small region of the auxiliary electrode layer 230A is not the opening region 233A, and the remaining portion is the opening region 233A. As shown in fig. 2B, an area S1 of the opening region 233B in the bending region 203B and an area S2 of the auxiliary electrode layer 230B in the bending region 203B satisfy: S1/S2 is less than or equal to 0.3. In the bending region 203B, a small portion of the auxiliary electrode layer 230B is an opening region 233B. The area of the opening region 233A is larger than that of the opening region 233B. Since the area of the opening 233B is smaller, the auxiliary electrode layer 230B in the bending region 203B has more ITO material. This results in a higher material stress and a higher possibility of breakage when the auxiliary electrode layer 230B is bent. The open area 233A is preferred in embodiments of the present invention. Because the area of the opening region 233A is larger, the auxiliary electrode layer 230A in the bending region 203A has less ITO material. This results in less material stress and less possibility of breakage of the auxiliary electrode layer 230A when the bending region 203A is bent. The larger area of the opening region 233A is effective in preventing the auxiliary electrode layer 230A from being broken.

Fig. 3A is a schematic plan view of an organic light emitting display panel 300 according to another embodiment of the invention. Fig. 3B is a schematic cross-sectional view of an organic light emitting display panel 300 according to another embodiment of the invention. The organic light emitting display panel 300 includes a bending region 303 and a non-bending region 304. The organic light emitting display panel 300 further includes an auxiliary electrode layer 330, and a first power line 320 and a cathode layer 340. The auxiliary electrode layer 330 includes a hollow area 332 in the bending area 303. The hollowed-out region 332 includes an open region 333. The auxiliary electrode layer 330 is made of ITO. The opening area 333 is not provided with an ITO material. The open area 333 extends in the first direction 301. The first direction 301 is perpendicular to two first sides 305 of the organic light emitting display panel 300 and parallel to two second sides 306 of the organic light emitting display panel 300, and the organic light emitting display panel 300 can be bent around the first direction 301. The opening region 333 extends in a direction consistent with a direction around which the organic light emitting display panel 300 is bent. The opening region 333 may penetrate the auxiliary electrode layer 330, or may be located in the middle of the hollow region 332. In addition, the auxiliary electrode layer 330 is electrically connected to the first power line 320 and the cathode layer 340 at regions on both sides of the opening region 333. When the organic light emitting display panel 300 is bent around the first direction 301, the auxiliary electrode layer 330 is subjected to a material stress in the bending region 303, wherein a portion of the material stress is approximately perpendicular to the first direction 301. The opening region 333 extending along the first direction 301 can relieve the material stress perpendicular to the first direction 301, and prevent the auxiliary electrode layer 330 from breaking when the bending region 303 is bent. Meanwhile, the auxiliary electrode layer 330 is electrically connected to the first power line 320 and the cathode layer 340 in the bending region 303, which ensures that the first power line 320, the auxiliary electrode layer 330 and the cathode layer 340 can transmit the first voltage signal in the bending region 303.

Fig. 4A is a schematic plan view illustrating an organic light emitting display panel 400 according to another embodiment of the invention. Fig. 4B is a schematic cross-sectional view illustrating an organic light emitting display panel 400 according to another embodiment of the invention. The organic light emitting display panel 400 includes a bending region 403 and a non-bending region 404. The organic light emitting display panel 400 further includes an auxiliary electrode layer 430, and a first power line 420 and a cathode layer 440. The auxiliary electrode layer 430 includes a hollow area 432 in the bending area 403. The hollowed-out area 432 includes an open area 433. The auxiliary electrode layer 430 is made of ITO. The opening area 433 is not provided with an ITO material. The plurality of opening regions 433 extend in the first direction 401, and are arranged in the second direction 402. The first direction 401 is perpendicular to two first sides 405 of the organic light emitting display panel 400 and parallel to two second sides 406 of the organic light emitting display panel 400, and the organic light emitting display panel 400 may be bent around the first direction 401. The second direction 402 is parallel to two first sides 405 of the organic light emitting display panel 400, perpendicular to two second sides 406 of the organic light emitting display panel 400, and perpendicular to the first direction 401. The plurality of open areas 433 are arranged from near a first side of the inflection region 403 to near a second side of the inflection region 403. Wherein any two adjacent opening regions 433 have the same pitch. In addition, the auxiliary electrode layer 430 is electrically connected to the first power line 420 and the cathode layer 440 at regions on both sides of the opening region 433. When the organic light emitting display panel 400 is bent around the first direction 401, the auxiliary electrode layer 430 is subjected to a material stress in the bending region 403, and the material stress is distributed over the auxiliary electrode layer 430 in the bending region 403. The plurality of opening regions 433 extending along the first direction 401 and arranged along the second direction 402 may relieve the material stress of the auxiliary electrode layer 430 at a plurality of locations within the bending region 403, rather than just relieving a local material stress. This may prevent the auxiliary electrode layer 430 from being broken when the bending region 403 is bent. Meanwhile, the auxiliary electrode layer 430 is electrically connected to the first power line 420 and the cathode layer 440 in the bending region 403, which ensures that the first power line 420, the auxiliary electrode layer 430 and the cathode layer 440 can transmit the first voltage signal in the bending region 403.

Fig. 5A is a schematic plan view of an organic light emitting display panel 500 according to another embodiment of the invention. Fig. 5B is a schematic cross-sectional view illustrating an organic light emitting display panel 500 according to another embodiment of the invention. The organic light emitting display panel 500 includes a bending region 503 and a non-bending region 504. The organic light emitting display panel 500 further includes an auxiliary electrode layer 530, and a first power line 520 and a cathode layer 540. The auxiliary electrode layer 530 includes a hollow area 532 within the bending area 503. The hollowed-out region 532 includes an open region 533. The auxiliary electrode layer 530 is made of ITO. The opening region 533 is not provided with an ITO material. The open region 533 assumes a ring-shaped configuration. The annular structure of the open region 533 includes a plurality of circular holes. The plurality of circular holes may have approximately the same diameter, and may penetrate the auxiliary electrode layer 530. The plurality of circular holes are arranged from near a first side of the inflection region 503 to near a second side of the inflection region 503. Wherein, arbitrary two adjacent round holes have the same interval. In addition, the ITO/Ag/ITO layer of the auxiliary electrode layer 530 in the bending region 503 is electrically connected to the first power line 520 and the cathode layer 540. When the organic light emitting display panel 500 is bent around the first direction 501 and the bending amplitude of the bending region 503 is large, the material stress of the auxiliary electrode layer 530 in the bending region 503 is large. The opening region 533 of the ring structure has good flexibility, and the ITO layer therein can be kept intact when the bending amplitude of the bending region 503 is large. This can prevent the auxiliary electrode layer 530 from being broken when the bending region 503 is greatly bent. Meanwhile, the auxiliary electrode layer 530 is electrically connected to the first power line 520 and the cathode layer 540 in the bending region 503, which ensures that the first power line 520, the auxiliary electrode layer 530 and the cathode layer 540 can transmit the first voltage signal in the bending region 503.

Fig. 6A is a schematic plan view of an organic light emitting display panel 600 according to another embodiment of the invention. Fig. 6B is a schematic cross-sectional view illustrating an organic light emitting display panel 600 according to another embodiment of the invention. The organic light emitting display panel 600 includes a bending region 603 and a non-bending region 604. The organic light emitting display panel 600 further includes an auxiliary electrode layer 630, and a first power line 620 and a cathode layer 640. The auxiliary electrode layer 630 includes a hollow-out region 632 in the bending region 603. The hollowed-out area 632 includes an open area 633. The auxiliary electrode layer 630 is made of ITO. The opening area 633 is not provided with an ITO material. The opening region 633 takes on a polygonal structure. The polygonal structure of the opening region 633 includes a plurality of holes. The plurality of holes may have approximately the same caliber, and may penetrate the auxiliary electrode layer 630. The arrangement of the plurality of apertures is continuous and is along a second direction 602 from proximate a first side of the inflection region 603 to proximate a second side of the inflection region 603. Wherein any two adjacent holes are staggered. In addition, the ITO/Ag/ITO layer of the auxiliary electrode layer 630 in the bending region 603 is electrically connected to the first power line 620 and the cathode layer 640. When the organic light emitting display panel 600 is bent around the first direction 601, the auxiliary electrode layer 630 is subjected to a material stress in the bending region 603. The plurality of holes continuously arranged along the second direction 602 in the opening region 633 may evenly relieve the material stress of the auxiliary electrode layer 630 in the bending region 603 everywhere along the second direction 602. This may prevent the auxiliary electrode layer 630 from being broken when the bending region 603 is bent. Meanwhile, the auxiliary electrode layer 630 is electrically connected to the first power line 620 and the cathode layer 640 in the bending region 603, which ensures that the first power line 620, the auxiliary electrode layer 630 and the cathode layer 640 can transmit the first voltage signal in the bending region 603.

Fig. 7A is a schematic plan view of an organic light emitting display panel 700 according to another embodiment of the invention. Fig. 7B is a schematic cross-sectional view illustrating an organic light emitting display panel 700 according to another embodiment of the invention. The organic light emitting display panel 700 includes a bending region 703 and a non-bending region 704. The organic light emitting display panel 700 further includes an auxiliary electrode layer 730, and a first power line 720 and a cathode layer 740. The auxiliary electrode layer 730 includes a hollow-out region 732 in the bending region 703. The hollowed-out region 732 includes an open region 733. The auxiliary electrode layer 730 is made of ITO. The opening area 733 is not provided with an ITO material. The auxiliary electrode layer 730 has only an opening region 733 in the bending region 703. There is no ITO material in inflection region 703. The first power line 720 is disconnected from the cathode layer 740 in the bending region 703. In the non-bending region 704, the auxiliary electrode layer 730 is electrically connected to the first power line 720 and the cathode layer 740, respectively. The cathode layer 740 in the non-inflection region 704 is electrically connected to the cathode layer 740 in the inflection region 703. When the organic light emitting display panel 700 is bent around the first direction 701, the auxiliary electrode layer 730 has only the opening region 733 in the bending region 703 and is not subject to the material stress. This may completely prevent the auxiliary electrode layer 730 from being broken when the bending region 703 is bent. Meanwhile, the auxiliary electrode layer 730 is electrically connected to the first power line 720 and the cathode layer 740 in the non-bending region 704, and the cathode layer 740 in the non-bending region 704 is electrically connected to the cathode layer 740 in the bending region 703, which ensures that the first power line 720 in the non-bending region 704, the auxiliary electrode layer 730 in the non-bending region 704, and the cathode layer 740 can transmit the first voltage signal to the bending region 703.

Fig. 8A is a schematic plan view of an organic light emitting display panel 800 according to another embodiment of the invention. Fig. 8B is a schematic cross-sectional view illustrating an organic light emitting display panel 800 according to another embodiment of the invention. The organic light emitting display panel includes a display region 801 and a non-display region 802 located at a periphery of the display region 801; the auxiliary electrode layer 830 is located in the non-display region 802 and is disposed around the periphery of the display region 801. The organic light emitting display panel 800 further includes a bending region 803 and a non-bending region 804. The display region 801 partially overlaps the bending region 803, and the non-display region 802 partially overlaps the bending region 803. The auxiliary electrode layer 830 disposed around the periphery of the display region 801 passes through the bending region 803 and the non-bending region 804, and is electrically connected to the first power line 820 and the cathode layer 840, respectively. When the auxiliary electrode layer 830 in the non-display area 802 is completely or partially hollowed into the opening area 833 in the bending area 803, the auxiliary electrode layer 830 in the non-bending area 804 is electrically connected to the first power line 820 and the cathode layer 840, and the cathode layer 840 in the non-bending area 804 is electrically connected to the cathode layer 840 in the bending area 803, and the first voltage signal may enter the bending area 803 through the first power line 820 in the non-bending area 804, the auxiliary electrode layer 830 in the non-bending area 804, the cathode layer 840 in the non-bending area 804, and the cathode layer 840 in the bending area 803. This ensures transmission of the first voltage signal within the inflection region 803.

The organic light emitting display panel 800 further includes a gate line disposed on the first metal layer and a data line disposed on the second metal layer; the first power line 820 and the data line are disposed on the same layer. The first metal layer and the second metal layer are located in different film layers and different regions in the display panel 800. The first power line 820 transmits a first voltage signal, the gate line transmits a scan driving signal or an emission driving signal, and the data line transmits a data driving signal. A first voltage signal of the first power line 820, a scan driving signal or an emission driving signal of the gate line, and a data driving signal of the data line are input to the pixel driving unit of the display panel 800 to drive the organic light emitting unit to emit light.

As shown in fig. 8B, the organic light emitting display panel 800 further includes an anode layer 850, and the auxiliary electrode layer 830 and the anode layer 850 are disposed on the same layer and have the same material. The anode layer 850 is disposed in the display region 801. The auxiliary electrode layer 830 is disposed in the non-display region 802. A cathode layer 840 electrically connected to the auxiliary electrode layer 830 is positioned in the display region 801 and the non-display region 802. An organic light emitting layer 860 is disposed between the anode layer 850 and the cathode layer 840 in the display region 801. The anode layer 850, the organic light emitting layer 860, and the cathode layer 840 in the display region 801 constitute a plurality of organic light emitting cells of the display panel 800. The auxiliary electrode layer 830 is electrically connected to the first power line 820 and the cathode layer 840, respectively, and transmits a first voltage signal to the organic light emitting unit. The anode layer 850 is connected to a pixel driving unit of the display panel 800, and a driving signal of the pixel driving unit is input to the organic light emitting unit through the anode layer 850. This makes the organic light emitting unit electroluminesce.

As shown in fig. 8B, a flat layer 810 is disposed between the first power line 820 and the auxiliary electrode layer 830, and the first power line 820 and the auxiliary electrode layer 830 are electrically connected through a via hole 811 disposed in the flat layer 810; the cathode layer 840 is disposed on the auxiliary electrode layer 830 and electrically connected to each other. The auxiliary electrode layer 830 has ITO/Ag/ITO. In order to relieve the material stress of the auxiliary electrode layer 830 in the bending region 803 when bending, the auxiliary electrode layer 830 is partially hollowed out and the ITO/Ag/ITO therein is disposed on the planarization layer 810 but not on the first power line 820. At this time, the first power line 820 and the auxiliary electrode layer 830 are connected by providing the via hole 811 in the planarization layer 810, so that the first power line 820, the auxiliary electrode layer 830, and the cathode layer 840 are electrically connected and transmit the first voltage signal.

Fig. 9 is a schematic plan view of an organic light emitting display device 950 according to another embodiment of the present invention. The organic light emitting display device 950 includes an organic light emitting display panel 900. The organic light emitting display panel 900 is described in detail in the above embodiments, and is not described in detail. The organic light emitting display device 950 may be an electronic apparatus having a display function, such as a mobile phone, a computer, and a television. In the organic light emitting display panel 900, the auxiliary electrode layer is hollowed out in the bending region to form a hollowed-out region, and the hollowed-out region includes an opening region, wherein the opening region does not have an ITO/Ag/ITO material. The opening area without the ITO/Ag/ITO material relieves the material stress on the ITO/Ag/ITO layer of the auxiliary electrode layer when the bending area is bent, and the phenomenon that the display panel cannot display images due to the fact that the ITO/Ag/ITO layer is broken is avoided. In addition, the auxiliary electrode layer is electrically connected with the first power line and the cathode layer at the hollow area where the ITO/Ag/ITO material is arranged. Therefore, when the auxiliary electrode layer in the bending area is hollowed out, the power supply signal of the first power line can be input into the organic light emitting diode in the display area through the hollowed-out area.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. An organic light emitting display panel, comprising:

a substrate base plate;

the organic light-emitting display panel further comprises a bending area, the organic light-emitting display panel is bent around a first direction, the auxiliary electrode layer comprises a hollow-out area in the bending area, and the hollow-out area comprises at least one opening area;

an area S1 of the opening region in the bending region and an area S2 of the auxiliary electrode layer in the bending region satisfy: 0.3-S1/S2-1.

2. The organic light emitting display panel according to claim 1, wherein the opening area extends in the first direction.

3. The organic light-emitting display panel according to claim 2, wherein a plurality of the opening regions are arranged in a second direction, the second direction being perpendicular to the first direction.

4. The organic light emitting display panel of claim 1, wherein the open area exhibits a ring structure.

5. The organic light emitting display panel of claim 1, wherein the opening area exhibits a polygonal structure.

6. The organic light-emitting display panel according to claim 1, wherein the auxiliary electrode layer has only the opening region in the bending region.

7. The organic light-emitting display panel according to claim 1, wherein the organic light-emitting display panel comprises a display region and a non-display region located at a periphery of the display region;

8. The organic light-emitting display panel according to claim 1, further comprising a gate line disposed on the first metal layer and a data line disposed on the second metal layer;

the first power line and the data line are arranged on the same layer.

9. The panel of claim 1, further comprising an anode layer, wherein the auxiliary electrode layer and the anode layer are disposed on the same layer and have the same material.

10. The organic light-emitting display panel according to claim 1, wherein a planarization layer is provided between the first power supply line and the auxiliary electrode layer, and the first power supply line and the auxiliary electrode layer are electrically connected through a via hole provided in the planarization layer;

11. An organic light emitting display device comprising the organic light emitting display panel according to any one of claims 1 to 10.