CN109411628B - Flexible display panel and display device - Google Patents
Flexible display panel and display device Download PDFInfo
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- CN109411628B CN109411628B CN201811280175.7A CN201811280175A CN109411628B CN 109411628 B CN109411628 B CN 109411628B CN 201811280175 A CN201811280175 A CN 201811280175A CN 109411628 B CN109411628 B CN 109411628B
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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
- H10K50/81—Anodes
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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
- H10K50/81—Anodes
- H10K50/813—Anodes 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
Abstract
The embodiment of the invention relates to the technical field of semiconductors, and discloses a flexible display panel and a display device. The flexible display panel comprises a plurality of pixel units, wherein each pixel unit comprises an anode layer and an organic functional layer positioned above the anode layer; the anode layer is provided with a groove on the surface close to the organic functional layer and/or the surface far away from the organic functional layer; and organic materials are filled in the grooves. In the invention, the anode layer is not easy to be separated from the membrane layer above and/or below the anode layer in the bending process.
Description
Technical Field
The embodiment of the invention relates to the technical field of semiconductors, in particular to a flexible display panel and a display device.
Background
An OLED (Organic Light Emitting Diode) is also called an Organic electroluminescence, an Organic electroluminescence display or an Organic Light Emitting semiconductor, and the OLED display technology has attracted more and more attention due to its advantages of self-luminescence, wide viewing angle, high contrast, low power consumption, thinness, and the like, and the flexible display technology based on the OLED makes a foldable or curled display technology possible.
The inventor finds that at least the following problems exist in the prior art: at present, in the flexible display based on the OLED, the anode layer is easily separated from the upper and lower film layers when being bent, which affects the display effect of the flexible display based on the OLED.
Disclosure of Invention
Embodiments of the present invention provide a flexible display panel and a display device, so that an anode layer is not easily separated from a film above and/or below an anode layer during a bending process.
In order to solve the above technical problem, an embodiment of the present invention provides a flexible display panel, where the flexible display panel includes a plurality of pixel units, each pixel unit includes an anode layer and an organic functional layer located above the anode layer; a groove is formed on the surface of the anode layer close to the organic functional layer and/or the surface of the anode layer far away from the organic functional layer; the groove is filled with an organic material.
An embodiment of the present invention also provides a display device including: the flexible display panel is provided.
Compared with the prior art, the flexible display panel comprises a plurality of pixel units, each pixel unit comprises an anode layer and an organic functional layer arranged above the anode layer, a groove is formed on the surface, close to the organic functional layer, of the anode layer and/or the surface, away from the organic functional layer, of the anode layer, organic materials are filled in the groove, and the adhesion force of the organic materials when the organic materials are in contact with films above and/or below the anode layer is larger than that of the anode layer when the materials of the anode layer are in contact with the films above and/or below the anode layer, so that the adhesion force between the anode layer and the films above and/or below the anode layer is increased, and the anode layer is not prone to generate film separation with the films above and/or below the anode layer in the bending process.
In addition, a pixel defining layer is disposed between the anode layers of the adjacent pixel cells.
In addition, a plurality of first grooves are formed on the surface, close to the organic functional layer, of the anode layer, and the first grooves are uniformly distributed on the anode layer; and/or a plurality of second grooves are formed on the surface of the anode layer, which is deviated from the organic functional layer, and the second grooves are uniformly distributed on the anode layer. In this embodiment, the adhesion between the upper surface and the lower surface of the anode layer and the film layers above and below the anode layer can be uniformly increased.
In addition, a first groove and a second groove are formed on the anode layer at the same time, and the first groove and the second groove are symmetrically arranged. In this embodiment, the increased adhesive force of the upper surface and the lower surface of the anode layer can be equal, so that the upper surface and the lower surface of the anode layer can uniformly bear the bending stress during bending.
The anode layer includes a first anode layer, a second anode layer, and a third anode layer stacked in this order, the first recess is formed in the first anode layer adjacent to the organic functional layer, and the second recess is formed in the third anode layer away from the organic functional layer. This embodiment provides a specific manner of forming the first groove and the second groove on the anode layer.
In addition, the depth of the first groove is smaller than the thickness of the first anode layer, and the depth of the second groove is smaller than the thickness of the third anode layer.
The first anode layer and the third anode layer are ito layers, and the second anode layer is a metal layer. This embodiment provides a specific structure of each layer of the anode layer.
In addition, the area of the open end of the groove is smaller than the area of the bottom end of the groove. In this embodiment, can avoid filling the organic material in the recess to break away from in the recess when buckling to a certain extent.
In addition, the organic material is a stress-dispersing material. In this embodiment, the organic material filled in the groove is a stress-dispersing material, so that when the anode layer is bent, the bending stress applied to the anode layer can be released by the stress-dispersing performance of the stress-dispersing material in the groove.
Drawings
One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the figures in which like reference numerals refer to similar elements and which are not to scale unless otherwise specified.
Fig. 1 to 4 are cross-sectional views of a flexible display panel according to a first embodiment of the present invention;
fig. 5 is a top view of a flexible display panel according to a first embodiment of the invention;
fig. 6 is a cross-sectional view of a flexible display panel according to a second embodiment of the present invention;
fig. 7 is a cross-sectional view of a flexible display panel according to a second embodiment of the present invention, in which a first groove and a second groove are symmetrically disposed;
fig. 8 is a cross-sectional view of an anode layer in a second embodiment according to the present invention;
fig. 9 is a top view of an anode layer in accordance with a second embodiment of the invention;
fig. 10 is a cross-sectional view of a flexible display panel according to a fourth embodiment of the present invention;
fig. 11 is a specific flowchart of a method of manufacturing a flexible display panel according to a sixth embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, it will be appreciated by those of ordinary skill in the art that numerous technical details are set forth in order to provide a better understanding of the present application in various embodiments of the present invention. However, the technical solution claimed in the present application can be implemented without these technical details and various changes and modifications based on the following embodiments.
A first embodiment of the present invention relates to a flexible display panel. The flexible display panel is used for manufacturing a display device, and the display device can be a product or a component with a display function, such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame or a navigator.
In this embodiment, the flexible display panel includes a plurality of pixel units, and taking any one of the pixel units as an example, the pixel unit includes an anode layer and an organic functional layer located above the anode layer.
Referring to fig. 1 to fig. 3, as can be understood by those skilled in the art, the flexible display panel further includes a substrate 1 and a planarization layer 2 formed on the substrate, the pixel unit is formed on the planarization layer 2, specifically, the anode layer 3 of the pixel unit is formed on the planarization layer 2, the anode layer 3 includes a pixel region 31 and a non-pixel region 32 surrounding the pixel region 31, the pixel region 31 is used for placing the functional layer 4; the non-pixel areas 32 of the anode layer 3 are covered with a pixel defining layer 5, the pixel defining layer 5 being arranged between the anode layers 3 of adjacent pixel cells.
In this embodiment, the groove 33 is formed on the surface of the anode layer 3 close to the organic functional layer 4 and/or the surface away from the organic functional layer 4, which includes the following three cases: first, as shown in fig. 1, the groove 33 is separately formed on the surface of the anode layer 3 close to the organic functional layer 4, that is, on the upper surface of the anode layer 3; secondly, as shown in fig. 2, the groove 33 is separately formed on the surface of the anode layer 3 away from the organic functional layer 4, i.e. on the lower surface of the anode layer 3; thirdly, as shown in fig. 3, the grooves 33 are formed on both the surface of the anode layer 3 close to the organic functional layer 4 and the surface of the anode layer 3 away from the organic functional layer 4, i.e. the upper surface and the lower surface of the anode layer 3 are both formed with the grooves 33. Here, when the groove 33 is formed on the pixel region 31 of the anode layer 3, it is necessary to ensure that the groove 33 does not completely cover the pixel region 31, so as to ensure that the anode layer 3 can be in conductive contact with the organic functional layer 4 disposed on the pixel region 31. It should be noted that the number of the grooves 33 is only schematically shown in the drawings, but the number of the grooves 33 is not limited in this embodiment.
Referring to fig. 1, when the groove 33 is formed on the pixel region 31 on the upper surface of the anode layer 3, the organic material 6 in the groove 33 contacts the organic functional layer 4 disposed thereon, and the adhesion between the organic material 6 and the organic functional layer 4 is greater than the adhesion between the material of the anode layer 3 and the organic functional layer 4, so as to increase the adhesion between the anode layer 3 and the organic functional layer 4, and prevent the anode layer 3 from being separated from the organic functional layer 4 during the bending process. Referring to fig. 4, when the groove 33 is formed on the non-pixel region 32 on the upper surface of the anode layer 3, the organic material 6 in the groove 33 is in contact with the pixel defining layer 5 covering the non-pixel region 32, and the adhesion between the organic material 6 and the pixel defining layer 5 is greater than the adhesion between the material of the anode layer 3 and the pixel defining layer 5, thereby increasing the adhesion between the anode layer 3 and the pixel defining layer 5, so that the anode layer 3 is not easily separated from the pixel defining layer 5 during the bending process. Referring to fig. 2, when the groove 33 is formed on the lower surface of the anode layer 3, the organic material 6 in the groove 33 contacts the planarization layer 2 under the anode layer 3, and the adhesion between the organic material 6 and the planarization layer 2 is greater than the adhesion between the material of the anode layer 3 and the planarization layer 2, so that the adhesion between the anode layer 3 and the planarization layer 2 is increased, and the anode layer 3 is not easily separated from the planarization layer 2 during the bending process.
In one example, the projection of the opening end of the groove 33 on the planarization layer 3 is a regular pattern, preferably a rectangle, a square, a regular hexagon, a regular octagon, a circle, etc., to further increase the opening area of the groove 33, thereby further increasing the contact area between the groove 33 and the upper and lower film layers to improve the adhesion between the anode layer 3 and the upper and lower film layers. In an example, referring to fig. 5, the opening end of the groove 33 is rectangular (the groove 33 is located in the pixel region in the figure for illustration), and the anode layer 3 of the pixel unit is also rectangular, in which case, the edge line of the rectangular opening end of the groove 33 and the edge line of the anode layer 3 can be set to be parallel to each other.
It should be noted that, since the present embodiment mainly aims at the improvement of the anode layer, other devices of the flexible display panel are not described in detail, and it does not mean that the flexible display panel in the present embodiment only includes the anode layer.
Compared with the prior art, the flexible display panel comprises a plurality of pixel units, each pixel unit comprises an anode layer and an organic functional layer arranged above the anode layer, a groove is formed on the surface, close to the organic functional layer, of the anode layer and/or the surface, away from the organic functional layer, of the anode layer, organic materials are filled in the groove, the adhesion force of the organic materials when the organic materials are in contact with films above and/or below the anode layer is larger than that of the anode layer when the materials of the anode layer are in contact with the films above and/or below the anode layer, and therefore the adhesion force between the anode layer and the films above and/or below the anode layer is increased, and the anode layer is not prone to generate film separation with the films above and/or below the anode layer in the bending process.
The second embodiment of the present invention relates to a flexible display panel, and the second embodiment is an improvement on the first embodiment, and the main improvements are as follows: indentation 33 includes a first indentation 331; and/or, the second recess 332, the first recess 331 is formed on the surface close to organic functional layer 4 of the anode layer 3, and multiple first recesses 331 are distributed on the anode layer; the second grooves 332 are formed on the surface of the anode layer 3 facing away from the organic functional layer 4, and a plurality of second grooves 332 are uniformly distributed on the anode layer. It should be noted that, in the present embodiment, the recess 33 includes the first recess 331 and the second recess 332, that is, the recess is formed on both the surface of the anode layer 3 close to the organic functional layer 4 and the surface of the anode layer 3 away from the organic functional layer 4, but the present embodiment does not limit this.
In this embodiment, referring to fig. 6, the number of the grooves 33 is 7, and the 7 grooves 33 include 4 first grooves 331 and 3 second grooves 332, where the 4 first grooves 331 are formed on the surface of the anode layer 3 close to the organic functional layer 4, that is, on the upper surface of the anode layer 3, and the 4 first grooves 331 are uniformly distributed on the upper surface of the anode layer 3; the 3 second grooves 332 form a surface of the anode layer 3 facing away from the organic functional layer 4, that is, the lower surface of the anode layer 3, and the 3 second grooves 332 are uniformly distributed on the lower surface of the anode layer 3. It should be noted that the first grooves 331 and the second grooves 332 may also be discretely distributed on the upper surface and the lower surface of the anode layer 3.
Preferably, the anode layer 3 is simultaneously formed with a first groove 331 and a second groove 332, referring to fig. 7, the 12 grooves 33 include 6 first grooves 331 and 6 second grooves 332, and the first grooves 331 and the second grooves 332 are symmetrically arranged, so that the adhesion force increased on the upper surface and the lower surface of the anode layer 3 is equal, and the upper surface and the lower surface of the anode layer 3 can uniformly bear the bending stress when bending.
In an example, referring to fig. 8 and 9, the anode layer 3 includes a first anode layer 34, a second anode layer 35, and a third anode layer 36 stacked in sequence; the lower surface of the first anode layer 34 forms the lower surface of the anode layer 3, the upper surface of the third anode layer 36 forms the upper surface of the anode layer 3, 6 first grooves 331 are formed in the first anode layer 34 close to the organic functional layer 4 and are uniformly distributed in the first anode layer 34, and 6 second grooves 332 are formed in the third anode layer 36 away from the organic functional layer 4 and are uniformly distributed in the third anode layer 36. The first anode layer 34 and the third anode layer 36 may be ito layers, the second anode layer 35 may be a metal layer, but not limited thereto, and the anode layer 3 may also be a single ito layer, in which case the first anode layer 34, the second anode layer 35, and the third anode layer 36 are ito layers.
This embodiment provides a specific manner of forming the first recess and the second recess on the anode layer, compared to the first embodiment.
A third embodiment of the present invention relates to a flexible display panel, and the third embodiment is an improvement of the first embodiment, and the main improvements are: the organic material 6 is a stress-relieving material.
In this embodiment, the organic material 6 filled in the at least one groove 33 on the anode layer 3 is a stress-relieving material, which includes but is not limited to at least one of the following: high molecular polymer, organic glue, polyethylene, polyvinylidene fluoride, epoxy resin and novel organic glue.
Compared with the first embodiment, the organic material filled in the groove is a stress-dispersing material, so that when the anode layer is bent, the bending stress applied to the anode layer can be released through the stress-dispersing performance of the stress-dispersing material in the groove. The present embodiment can be modified from the second embodiment to achieve the same technical effects.
A fourth embodiment of the present invention relates to a flexible display panel, and is an improvement over the first embodiment, and mainly includes: the area of the open end of the groove 33 is smaller than the area of the bottom end of the groove 33.
In the present embodiment, the area of the open end of the groove 33 is smaller than the area of the bottom end of the groove 33, that is, for the groove 33 formed on the upper surface of the anode layer 3, the area of the end surface of the groove 33 close to the substrate 1 is larger than the area of the end surface of the groove 33 far from the substrate 1; as for the grooves 33 formed on the lower surface of the anode layer 3, the area of the end surface of the groove 33 close to the substrate 1 is smaller than the area of the end surface of the groove 33 remote from the substrate 1. Referring to fig. 10 (taking the flexible display panel in fig. 1 as an example), the groove 33 is formed on the upper surface of the anode layer 3, the area of the open end of the groove 33 is smaller than the area of the bottom end of the groove 33, and the cross section of the groove 33 is trapezoidal in the figure for illustration, but not limited thereto, and the cross section of the groove 33 may be other patterns.
Compared to the first embodiment, the present embodiment can prevent the organic material filled in the groove from being separated from the groove during bending to some extent. The present embodiment can be modified from the second or third embodiment, and can achieve the same technical effects.
A fifth embodiment of the present invention relates to a display device, which includes the flexible display panel according to any one of the first to fourth embodiments, and the display device may be a product or a component having a display function, such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, or a navigator.
Compared with the prior art, the embodiment provides a display device, wherein the flexible display panel comprises a plurality of pixel units, each pixel unit comprises an anode layer and an organic functional layer arranged above the anode layer, a groove is formed on one side of the anode layer close to the organic functional layer and/or one side of the anode layer away from the organic functional layer, and organic materials are filled in the groove, and the adhesion force of the organic materials when the organic materials are in contact with films above and/or below the anode layer is larger than that of the anode layer when the anode layer is in contact with the films above and/or below the anode layer, so that the adhesion force between the anode layer and the films above and/or below the anode layer is increased, and the anode layer is not easy to separate from the films above and/or below the anode layer in the bending process.
A sixth embodiment of the present invention relates to a method for manufacturing a flexible display panel, which is used to manufacture the flexible display panel of any one of the first to fourth embodiments, and specifically, the manufacturing of the flexible display panel of the first embodiment is taken as an example for description, please refer to fig. 1 to 3.
Fig. 11 shows a specific flow of the method for manufacturing a flexible display panel according to this embodiment.
In step 101, a substrate is provided.
Specifically, a substrate 1 is provided, and a planarization layer 2 may be formed on the substrate 1.
102, preparing a plurality of pixel units on a substrate; each pixel unit comprises an anode layer and an organic functional layer positioned above the anode layer; the side of the anode layer close to the organic functional layer and/or the side facing away from the organic functional layer is provided with a recess.
Specifically, a plurality of pixel units are prepared on a substrate 1, that is, a plurality of pixel units are prepared on a planarization layer 2 on the substrate 1, specifically, an anode layer 3 of the pixel units is formed on the planarization layer 2, the anode layer 3 includes a pixel region 31 and a non-pixel region 32 surrounding the pixel region 31, and the pixel region 31 is used for placing a functional layer 4; the non-pixel areas 32 of the anode layer 3 are covered with a pixel defining layer 5, the pixel defining layer 5 being arranged between the anode layers 3 of adjacent pixel cells.
In this embodiment, the groove 33 is formed on the surface of the anode layer 3 close to the organic functional layer 4 and/or the surface away from the organic functional layer 4, which includes the following three cases: first, as shown in fig. 1, the groove 33 is separately formed on the surface of the anode layer 3 close to the organic functional layer 4, that is, on the upper surface of the anode layer 3; secondly, as shown in fig. 2, the groove 33 is separately formed on the surface of the anode layer 3 away from the organic functional layer 4, i.e. on the lower surface of the anode layer 3; thirdly, as shown in fig. 3, the grooves 33 are formed on both the surface of the anode layer 3 close to the organic functional layer 4 and the surface of the anode layer 3 away from the organic functional layer 4, i.e. the upper surface and the lower surface of the anode layer 3 are both formed with the grooves 33. Here, when the groove 33 is formed on the pixel region 31 of the anode layer 3, it is necessary to ensure that the groove 33 does not completely cover the pixel region 31, so as to ensure that the anode layer 3 can be in conductive contact with the organic functional layer 4 disposed on the pixel region 31. It should be noted that the number of the grooves 33 is only schematically shown in the drawings, but the number of the grooves 33 is not limited in this embodiment.
Specifically, the groove 33 is filled with the organic material 6, referring to fig. 1, when the groove 33 is formed on the pixel region 31 on the upper surface of the anode layer 3, the organic material 6 in the groove 33 contacts the organic functional layer 4 disposed thereon, and the adhesion between the organic material 6 and the organic functional layer 4 is greater than the adhesion between the material of the anode layer 3 and the organic functional layer 4, so that the adhesion between the anode layer 3 and the organic functional layer 4 is increased, and the anode layer 3 is not easily separated from the organic functional layer 4 during the bending process. Referring to fig. 4, when the groove 33 is formed on the non-pixel region 32 on the upper surface of the anode layer 3, the organic material 6 in the groove 33 is in contact with the pixel defining layer 5 covering the non-pixel region 32, and the adhesion between the organic material 6 and the pixel defining layer 5 is greater than the adhesion between the material of the anode layer 3 and the pixel defining layer 5, thereby increasing the adhesion between the anode layer 3 and the pixel defining layer 5, so that the anode layer 3 is not easily separated from the pixel defining layer 5 during the bending process. Referring to fig. 2, when the groove 33 is formed on the lower surface of the anode layer 3, the organic material 6 in the groove 33 contacts the planarization layer 2 under the anode layer 3, and the adhesion between the organic material 6 and the planarization layer 2 is greater than the adhesion between the material of the anode layer 3 and the planarization layer 2, so that the adhesion between the anode layer 3 and the planarization layer 2 is increased, and the anode layer 3 is not easily separated from the planarization layer 2 during the bending process.
When the grooves 33 need to be formed on the lower surface of the anode layer 3, the organic material 6 corresponding to the shapes of the grooves 33 is firstly prepared on the planarization layer 2, and then the anode layer 3 is prepared on the planarization layer 2, so that at least one groove 33 filled with the organic material 6 is formed on the lower surface of the anode layer 3.
Compared with the prior art, the flexible display panel comprises a plurality of pixel units, each pixel unit comprises an anode layer and an organic functional layer arranged above the anode layer, a groove is formed in one side, close to the organic functional layer, of the anode layer and/or one side, away from the organic functional layer, of the anode layer, organic materials are filled in the groove, and the adhesion force of the organic materials when the organic materials are in contact with films above and/or below the anode layer is larger than that of the anode layer when the materials of the anode layer are in contact with the films above and/or below the anode layer, so that the adhesion force between the anode layer and the films above and/or below the anode layer is increased, and the anode layer is not prone to generate film separation with the films above and/or below the anode layer in the bending process.
It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific examples for carrying out the invention, and that various changes in form and details may be made therein without departing from the spirit and scope of the invention in practice.
Claims (9)
1. A flexible display panel comprises a plurality of pixel units, and is characterized in that each pixel unit comprises an anode layer and an organic functional layer positioned above the anode layer; a groove is formed on the surface of the anode layer close to the organic functional layer, organic materials are filled in the groove, and the adhesion force between the organic materials and a film layer positioned on the surface of the anode layer close to the organic functional layer is larger than that between the materials of the anode layer and the film layer positioned on the surface of the anode layer close to the organic functional layer; and/or a groove is formed in the surface of the anode layer, which is far away from the organic functional layer, organic materials are filled in the groove, the adhesion force between the organic materials and a film layer positioned on the surface of the anode layer, which is far away from the organic functional layer, is greater than that between the materials of the anode layer and the film layer positioned on the surface of the anode layer, which is far away from the organic functional layer, and the area of the opening end of the groove is smaller than that of the bottom end of the groove.
2. The flexible display panel of claim 1, wherein a pixel defining layer is disposed between the anode layers of adjacent pixel cells.
3. The flexible display panel of claim 1, wherein a plurality of first grooves are formed on a surface of the anode layer adjacent to the organic functional layer, and the plurality of first grooves are uniformly distributed on the anode layer; and/or a plurality of second grooves are formed on the surface of the anode layer, which is deviated from the organic functional layer, and the plurality of second grooves are uniformly distributed on the anode layer.
4. The flexible display panel of claim 3, wherein the first groove and the second groove are formed on the anode layer at the same time, and the first groove and the second groove are symmetrically arranged.
5. The flexible display panel according to claim 3, wherein the anode layer includes a first anode layer, a second anode layer, and a third anode layer stacked in this order, the first groove is formed on the first anode layer adjacent to the organic functional layer, and the second groove is formed on the third anode layer facing away from the organic functional layer.
6. The flexible display panel of claim 5, wherein the depth of the first groove is less than the thickness of the first anode layer, and the depth of the second groove is less than the thickness of the third anode layer.
7. The flexible display panel of claim 5, wherein the first anode layer and the third anode layer are indium tin oxide layers and the second anode layer is a metal layer.
8. The flexible display panel of claim 1, wherein the organic material is a stress-relieving material.
9. A display device, comprising: the flexible display panel of any one of claims 1 to 8.
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| JP2005062400A (en) * | 2003-08-11 | 2005-03-10 | Toshiba Matsushita Display Technology Co Ltd | Flat display device and method for manufacturing the same |
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