CN113488520A - OLED display device and manufacturing method thereof - Google Patents
OLED display device and manufacturing method thereof Download PDFInfo
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- CN113488520A CN113488520A CN202110747558.6A CN202110747558A CN113488520A CN 113488520 A CN113488520 A CN 113488520A CN 202110747558 A CN202110747558 A CN 202110747558A CN 113488520 A CN113488520 A CN 113488520A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- 239000000758 substrate Substances 0.000 claims abstract description 85
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 65
- 239000002184 metal Substances 0.000 claims abstract description 37
- 229910052751 metal Inorganic materials 0.000 claims abstract description 37
- 230000002708 enhancing effect Effects 0.000 claims abstract description 23
- 238000000034 method Methods 0.000 claims abstract description 8
- 229920000297 Rayon Polymers 0.000 claims abstract description 6
- 239000010410 layer Substances 0.000 claims description 132
- 239000012790 adhesive layer Substances 0.000 claims description 39
- 239000003292 glue Substances 0.000 claims description 24
- 238000005452 bending Methods 0.000 claims description 18
- 239000004642 Polyimide Substances 0.000 claims description 13
- 229920001721 polyimide Polymers 0.000 claims description 13
- 239000004820 Pressure-sensitive adhesive Substances 0.000 claims description 8
- 238000003825 pressing Methods 0.000 claims description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 239000011889 copper foil Substances 0.000 claims description 3
- 239000006260 foam Substances 0.000 claims description 3
- 239000003351 stiffener Substances 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 abstract description 4
- 239000012528 membrane Substances 0.000 abstract description 3
- 238000010030 laminating Methods 0.000 abstract 1
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
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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
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Abstract
The application discloses an OLED display device and a manufacturing method thereof. The OLED display device comprises a flexible OLED display panel, a first substrate, a second substrate, a buffer structure layer and a reinforcing plate; the buffer structure layer comprises a buffer layer facing the first substrate and a metal layer far away from the first substrate, the metal layer is stacked, an attachment area is arranged at one end of the metal layer far away from the first substrate, and a viscosity enhancing part is arranged in the attachment area; the upper surface and the lower surface of reinforcing plate have the viscose layer, the reinforcing plate the upper surface is attached in attached district, flexible OLED display panel the district of buckling is buckled so that the second base plate is attached to the reinforcing plate the lower surface. This application buffer structure layer is through the firm laminating of the upper surface of this viscidity reinforcing part with the reinforcing plate, can avoid tearing when leaving the type membrane on the reinforcing plate at the preparation OLED display device in-process because reinforcing plate and buffer structure layer viscosity are low to lead to taking away the problem of reinforcing plate body.
Description
Technical Field
The invention relates to the technical field of display, in particular to an OLED display device and a manufacturing method thereof.
Background
With the development of communication technology, electronic devices such as smart phones are becoming more and more popular. In order to achieve the narrow edge effect, a mobile phone product generally adopts a side surface or bottom surface binding structure, and the bottom surface binding structure can achieve electrical connection between an upper substrate and a lower substrate.
The existing display device can be provided with a buffer structure layer for buffering stress, and a reinforcing plate is arranged for supporting a substrate, so that the flexible circuit board is ensured to be in an arc shape after being bent. The contact surface of buffer structure layer and reinforcing plate is the metal level, and the dyne value of metal level is littleer, and is dull polish structure, and the adhesive force between the glue film on the reinforcing plate and the metal level is relatively poor.
When the display device is manufactured, the problem that the reinforcing plate body is taken away from the release film often occurs when the release film on the reinforcing plate is torn off.
Disclosure of Invention
The invention aims to provide an OLED display device and a manufacturing method thereof, and aims to solve the technical problem that in the prior art, when a reinforcing plate is attached and a release film on the reinforcing plate is torn off in the process of manufacturing the display device, the reinforcing plate body is taken away.
In order to achieve the above object, an embodiment of the present invention provides an OLED display device, including a flexible OLED display panel, a first substrate, a second substrate, a buffer structure layer, and a reinforcing plate; specifically, the flexible OLED display panel is sequentially divided into a display area, a bending area and a circuit area; the first substrate is arranged on the lower surface of the display area of the flexible OLED display panel; the second substrate is arranged on the lower surface of the circuit area of the flexible OLED display panel and is arranged at intervals with the first substrate; the buffer structure layer is attached to the lower surface of the first substrate; the buffer structure layer comprises a buffer layer facing the first substrate and a metal layer far away from the first substrate, the metal layer is stacked, an attachment area is arranged at one end of the metal layer far away from the first substrate, and a viscosity enhancing part is arranged in the attachment area; the upper surface and the lower surface of reinforcing plate have the viscose layer, the reinforcing plate the upper surface is attached in attached district, flexible OLED display panel the district of buckling is buckled so that the second base plate is attached to the reinforcing plate the lower surface.
In an embodiment of the OLED display device, the adhesion enhancing portion is a convex-concave structure continuously disposed in the attachment area.
In an embodiment of the OLED display device, the adhesion enhancing portion is a plurality of grooves disposed at intervals in the attachment area.
In the OLED display device according to an embodiment of the present application, each of the grooves is a long strip; all the grooves are arranged in parallel at equal intervals.
In an embodiment of the OLED display device, the metal layer is a copper foil layer.
In an embodiment of the OLED display device, the stiffener further includes a body portion; the viscose layer includes first glue film for with the viscidity reinforcing part corresponds attached the connection, and the second glue film, for with the second base plate corresponds attached the connection, wherein the viscidity of second glue film is less than the viscidity of first glue film.
In an embodiment of the OLED display device, the buffer structure layer further includes a polyimide layer, a pressure-sensitive adhesive layer, and a grid adhesive layer; the polyimide layer is arranged between the buffer layer and the metal layer; the pressure-sensitive adhesive layer is arranged between the polyimide layer and the buffer layer; the grid glue film is arranged on the buffer layer, wherein the buffer layer is a foam layer.
The application also provides a manufacturing method of the OLED display device, which comprises the following steps:
arranging a first substrate and a second substrate, wherein the first substrate is arranged on the lower surface of a display area of a flexible OLED display panel, the second substrate is arranged on the lower surface of a circuit area of the flexible OLED display panel, and the flexible OLED display surface further comprises a bending area arranged between the display area and the circuit area;
arranging a buffer structure layer, namely attaching the buffer structure layer to the lower surface of the first substrate, wherein the buffer structure layer comprises a buffer layer facing the first substrate and a metal layer far away from the first substrate, the metal layer is provided with an attaching area at one end far away from the first substrate, and the attaching area is internally provided with a viscosity enhancing part;
attaching a reinforcing plate, wherein the reinforcing plate comprises a first release film, a first adhesive layer, a body part, a second adhesive layer and a second release film which are sequentially stacked, and the step of attaching the reinforcing plate comprises tearing off the first release film and then correspondingly attaching and connecting the first adhesive layer and the viscosity enhancing part; and
and attaching a second substrate, namely tearing off the second release film, and bending the flexible OLED display panel to ensure that the bending area is connected with the second substrate correspondingly in an attaching manner on the second glue layer.
In an embodiment of this application OLED display device's manufacturing method, wherein, viscidity reinforcing part for the interval set up in a plurality of recesses in the attached district, wherein, a plurality of recesses pass through the pressure head pressfitting the attached district of metal level forms, the pressure head is equipped with a plurality of sand grips, every the cross section of sand grip is arc, every the height of sand grip is 4um-5 um.
In an embodiment of the present invention, the viscosity of the second adhesive layer is less than the viscosity of the first adhesive layer.
The invention has the beneficial effects that the invention provides the OLED display device and the manufacturing method thereof, the adhesion area at one end of the buffer structure layer, which is far away from the metal layer of the first substrate, is internally provided with the viscosity enhancing part; buffer structure layer is firmly laminated with the upper surface of reinforcing plate through this viscidity reinforcing part, can avoid tearing when the release liner from the type membrane on the reinforcing plate at the preparation OLED display device in-process because reinforcing plate and buffer structure layer viscosity are low to lead to taking away the problem of reinforcing plate body.
Drawings
The technical solution and other advantages of the present application will become apparent from the detailed description of the embodiments of the present application with reference to the accompanying drawings.
Fig. 1 is a schematic cross-sectional structure diagram of an OLED display device in an embodiment of the present application.
Fig. 2 is a schematic plane structure diagram of a buffer structure layer of a flexible OLED display panel in the embodiment of the present application.
Fig. 3 is a schematic structural view of the reinforcing plate in the embodiment of the present application before the release film is removed.
Fig. 4 is a flowchart illustrating a method for manufacturing an OLED display device according to an embodiment of the present disclosure.
Fig. 5 is a schematic diagram illustrating a manufacturing process of pressing the attachment region of the metal layer by a pressing head to form the groove in the embodiment of the present application.
The components in the figure are identified as follows:
a flexible OLED display panel 1, a first substrate 2, a second substrate 3,
a buffer structure layer 4, a reinforcing plate 5, a pressure head 7,
a flexible circuit board 11, an optical adhesive 12, a metal layer 41,
a polyimide layer 42, a pressure sensitive adhesive layer 43, a buffer layer 44,
the mesh adhesive layer 45, the adhesive layer 51, the body portion 52,
a first release film 61, a second release film 62, a convex strip 71,
the OLED display device 100, the display region 101, the bending region 102,
a circuit region 103, an attachment region 401, an adhesion-enhancing portion 411,
a groove 412, a first adhesive layer 511 and a second adhesive layer 512.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application 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 application.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
Specifically, referring to fig. 1 and fig. 2, an OLED display device 100 includes a flexible OLED display panel 1, a first substrate 2, a second substrate 3, a buffer structure layer 4, and a reinforcing plate 5.
Specifically, the flexible OLED display panel 1 is sequentially divided into a display region 101, a bending region 102 and a circuit region 103; the upper surface of the flexible OLED display panel 1 in the display area 101 is used for displaying images, and the first substrate 2 is arranged on the lower surface of the display area 101 of the flexible OLED display panel 1; the lower surface of the flexible OLED display panel 1 in the circuit region 103 is connected to the second substrate 3, and the second substrate 3 is arranged on the lower surface of the circuit region 103 of the flexible OLED display panel 1 and spaced from the first substrate 2; preferably, the thicknesses of the first substrate 2 and the second substrate 3 are equal, so that the first substrate 2 and the second substrate 3 can be electrically connected through one side of the flexible OLED display panel 1. Specifically, the flexible OLED display panel 1 includes a flexible circuit board 11 and an optical adhesive 12, and the first substrate 2 and the second substrate 3 are both disposed on the same side surface of the flexible circuit board 11 in a binding manner. The flexible circuit board 11 is bent at the bending region 102, and the second substrate 3 and the first substrate 2 are correspondingly disposed, so that structural stability can be enhanced, and a double-sided display function can be realized in other embodiments.
In particular, the term "flexible" of the flexible OLED display panel 1 or the flexible circuit board 11 means that a 180 degree bend can be made as shown in fig. 1. The material of the flexible circuit board 11 is not limited herein, and may be Polyimide (PI) or ultra-thin flexible glass, etc., and the flexible circuit board 11 is provided with circuit traces such as a pixel circuit, etc., and OLED display pixels. The OLED display pixels may be disposed in the display region 101 or the circuit region 103, or both the display region 101 and the circuit region 103. Circuit traces may be disposed at the inflection region 102. Referring to fig. 1 and 2, in order to enhance the structural stability of the flexible OLED display panel 1 after bending, the buffer structure layer 4 and the reinforcing plate 5 are disposed between the first substrate 2 and the second substrate 3, so as to be supported between the first substrate 2 and the second substrate 3. The buffer structure layer 4 is attached to the lower surface of the first substrate 2; the buffer structure layer 4 comprises a buffer layer 44 facing the first substrate 2 and a metal layer 41 far away from the first substrate 2, the metal layer 41 is provided with an attachment area 401 at one end far away from the first substrate 2, and an adhesion enhancing part 411 is arranged in the attachment area 401; the upper surface and the lower surface of the reinforcing plate 5 are provided with adhesive layers 51, the upper surface of the reinforcing plate 5 is attached to the attaching area 401, and the bending area 102 of the flexible OLED display panel 1 is bent for 180 degrees so that the second substrate 3 is attached to the lower surface of the reinforcing plate 5.
In the embodiment, the adhesion enhancing part 411 is arranged in the attachment area 401 at one end of the buffer structure layer 4 far away from the metal layer 41 of the first substrate 2; buffer structure layer 4 firmly laminates with the upper surface of reinforcing plate 5 through this viscidity reinforcing part 411, can avoid tearing when the release film on the reinforcing plate 5 is torn off in the preparation OLED display device 100 in-process because reinforcing plate 5 leads to taking away the problem of reinforcing plate 5 body with the low viscosity of buffer structure layer 4.
In more detail, referring to fig. 1, the buffer structure layer 4 further includes a polyimide layer 42, a pressure-sensitive adhesive layer 43, and a grid adhesive layer 45; the polyimide layer 42 is arranged between the buffer layer 44 and the metal layer 41, and the thickness is 50 +/-5 um; the pressure-sensitive adhesive layer 43 is arranged between the polyimide layer 42 and the buffer layer 44, and the thickness of the pressure-sensitive adhesive layer is 5-15 um; the grid glue layer 45 is arranged on the buffer layer 44, and the thickness of the grid glue layer is 30-50 um; the buffer layer 44 is a foam layer with a thickness of 80-120 um. That is, the buffer structure layer 4 includes a metal layer 41, a polyimide layer 42, a pressure-sensitive adhesive layer 43, a buffer layer 44, and a mesh adhesive layer 45, which are sequentially stacked from the stiffener 5 to the first substrate 2 side. Wherein the buffer structure layer 4 may not be provided with the polyimide layer 42. The metal layer 41 is a copper foil layer or other metal foil layers. This application adopts net glue film 45, and accessible net glue film 45 increases buffer layer 44 of buffer structure layer 4 with viscidity between the first base plate 2.
Referring to fig. 1, in the present embodiment, the reinforcing plate 5 further includes a body portion 52; the viscose layer 51 includes a first glue layer 511 and a second glue layer 512, the first glue layer 511 is used for corresponding the attaching connection of the viscosity enhancing part 411, the second glue layer 512 is used for corresponding the attaching connection of the second substrate 3, wherein the viscosity of the second glue layer 512 is less than that of the first glue layer 511.
Referring to fig. 3, in the manufacture of the OLED display device 100, the reinforcing plate 5 includes a first release film 61, a first adhesive layer 511, a body portion 52, a second adhesive layer 512 and a second release film 62 which are sequentially stacked; after the first release film 61 is torn off, the first adhesive layer 511 and the adhesion enhancing part 411 are correspondingly attached and connected; and tearing off the second release film 62, bending the bending area 102 of the flexible OLED display panel 1 to correspondingly attach the second substrate 3 to the second glue layer 512. The viscosity of the second adhesive layer 512 is smaller than that of the first adhesive layer 511, so that when the second release film 62 is peeled off, the body portion 52 of the reinforcing plate 5 connected to the first adhesive layer 511 is not separated from the buffer structure layer 4, and the body portion 52 of the reinforcing plate 5 is not taken up by the second release film 62.
Referring to fig. 1 and 2, in the present embodiment, in order to enhance the adhesion between the position of the adhesion-enhanced portion 411 and the first adhesive layer 511, the adhesion-enhanced portion 411 is continuously disposed in the attachment area 401 in a convex-concave structure (not shown), so that the adhesion area between the adhesion-enhanced portion 411 and the first adhesive layer 511 can be increased. Alternatively, the adhesion enhancing part 411 is a plurality of grooves 412 spaced in the attachment area 401, and the adhesion area between the adhesion enhancing part 411 and the first adhesive layer 511 can also be increased. In other embodiments, the adhesion-enhanced part 411 may be a zigzag structure or a wave structure, so as to increase the adhesion area between the adhesion-enhanced part 411 and the first adhesive layer 511.
In this embodiment, the groove 412 is preferably in a long strip shape; all the grooves 412 are arranged in parallel at equal intervals. The grooves 412 of this configuration are convenient to fabricate.
Referring to fig. 4, the present application further provides a method for manufacturing an OLED display device 100, which includes the following steps S1-S4:
s1, arranging a first substrate and a second substrate, arranging a first substrate 2 on the lower surface of a display area 101 of a flexible OLED display panel 1, and arranging a second substrate 3 on the lower surface of a circuit area 103 of the flexible OLED display panel 1, wherein the flexible OLED display surface further comprises a bending area 102 arranged between the display area 101 and the circuit area 103;
s2, a step of disposing a buffer structure layer, in which a buffer structure layer 4 is attached to the lower surface of the first substrate 2, wherein the buffer structure layer 4 includes a buffer layer 44 facing the first substrate 2 and a metal layer 41 far away from the first substrate 2, and the metal layer 41 is disposed in a stacked manner, and an attachment area 401 is disposed at one end of the metal layer 41 far away from the first substrate 2, and a viscosity enhancing portion 411 is disposed in the attachment area 401;
s3, attaching a reinforcing plate, wherein the reinforcing plate 5 includes a first release film 61, a first adhesive layer 511, a body portion 52, a second adhesive layer 512, and a second release film 62, which are sequentially stacked, and the attaching the reinforcing plate 5 includes tearing off the first release film 61, and then correspondingly attaching and connecting the first adhesive layer 511 and the adhesion-enhanced portion 411; and
s4, attaching a second substrate, namely tearing off the second release film 62, bending the bending area 102 of the flexible OLED display panel 1 to correspondingly attach the second substrate 3 to the second glue layer 512.
Referring to fig. 5, in the present embodiment, the adhesion enhancing portion 411 is a plurality of grooves 412 disposed at intervals in the attachment area, wherein the plurality of grooves 412 are formed by pressing the attachment area of the metal layer 41 with a pressing head 7, the pressing head is provided with a plurality of protruding strips 71, a cross section of each protruding strip 71 is arc-shaped, and a height of each protruding strip 71 is 4um to 5 um. The height of the rib is the depth of the formed groove 412. Preferably, the protruding strips 71 and the grooves 412 are in a long strip shape; all the grooves 412 are arranged in parallel at equal intervals, and the grooves 412 of the convex strips 71 are convenient to manufacture.
In this embodiment, in order to enhance the adhesion between the position of the adhesion-enhanced part 411 and the first adhesive layer 511, the adhesion-enhanced part 411 is continuously disposed in the convex-concave structure of the attachment area, so that the adhesion area between the adhesion-enhanced part 411 and the first adhesive layer 511 can be increased. Alternatively, the adhesion enhancing part 411 is a groove 412 disposed in the attachment area at intervals, and the adhesion area between the adhesion enhancing part 411 and the first adhesive layer 511 can also be increased. In other embodiments, the adhesion-enhanced part 411 may be a zigzag structure or a wave structure, so as to increase the adhesion area between the adhesion-enhanced part 411 and the first adhesive layer 511.
In this embodiment, the viscosity of the second adhesive layer 512 is smaller than that of the first adhesive layer 511, so that when the second release film 62 is peeled off, the body portion 52 of the reinforcing plate 5 connected to the first adhesive layer 511 is not separated from the buffer structure layer 4, and the body portion 52 of the reinforcing plate 5 is not taken up by the second release film 62.
The invention has the beneficial effects that the invention provides the OLED display device and the manufacturing method thereof, the adhesion area at one end of the buffer structure layer, which is far away from the metal layer of the first substrate, is internally provided with the viscosity enhancing part; buffer structure layer is firmly laminated with the upper surface of reinforcing plate through this viscidity reinforcing part, can avoid tearing when the release liner from the type membrane on the reinforcing plate at the preparation OLED display device in-process because reinforcing plate and buffer structure layer viscosity are low to lead to taking away the problem of reinforcing plate body.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
The foregoing describes in detail an electronic device provided in an embodiment of the present application, and a specific example is applied to illustrate the principle and the implementation of the present application, and the description of the foregoing embodiment is only used to help understanding the technical solution and the core idea of the present application; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the present disclosure as defined by the appended claims.
Claims (10)
1. An OLED display device, comprising:
the flexible OLED display panel is sequentially divided into a display area, a bending area and a circuit area;
the first substrate is arranged on the lower surface of the display area of the flexible OLED display panel;
the second substrate is arranged on the lower surface of the circuit area of the flexible OLED display panel and is arranged at intervals with the first substrate;
the buffer structure layer is attached to the lower surface of the first substrate; the buffer structure layer comprises a buffer layer facing the first substrate and a metal layer far away from the first substrate, the metal layer is stacked, an attachment area is arranged at one end of the metal layer far away from the first substrate, and a viscosity enhancing part is arranged in the attachment area; and
the reinforcing plate, the upper and lower surface of reinforcing plate has the viscose layer, the reinforcing plate the upper surface paste in attached district, flexible OLED display panel the district of buckling buckle so that the second base plate is attached extremely the reinforcing plate the lower surface.
2. The OLED display device of claim 1, wherein the adhesion-enhancing portion is a convex-concave structure continuously disposed within the attachment area.
3. The OLED display device of claim 1, wherein the adhesion enhancing portion is a plurality of grooves disposed at intervals in the attachment area.
4. The OLED display device of claim 3, wherein each of the grooves is elongated; all the grooves are arranged in parallel at equal intervals.
5. The OLED display device of claim 1, wherein the metal layer is a copper foil layer.
6. The OLED display device of claim 1, wherein the stiffener plate further includes a body portion; the viscose layer includes first glue film for with the viscidity reinforcing part corresponds attached the connection, and the second glue film, for with the second base plate corresponds attached the connection, wherein the viscidity of second glue film is less than the viscidity of first glue film.
7. The OLED display device claimed in claim 1, wherein the buffer structure layer further comprises:
a polyimide layer disposed between the buffer layer and the metal layer;
the pressure-sensitive adhesive layer is arranged between the polyimide layer and the buffer layer; and
and the grid adhesive layer is arranged on the buffer layer, wherein the buffer layer is a foam layer.
8. A manufacturing method of an OLED display device is characterized by comprising the following steps:
arranging a first substrate and a second substrate, wherein the first substrate is arranged on the lower surface of a display area of a flexible OLED display panel, the second substrate is arranged on the lower surface of a circuit area of the flexible OLED display panel, and the flexible OLED display surface further comprises a bending area arranged between the display area and the circuit area;
arranging a buffer structure layer, namely attaching the buffer structure layer to the lower surface of the first substrate, wherein the buffer structure layer comprises a buffer layer facing the first substrate and a metal layer far away from the first substrate, the metal layer is provided with an attaching area at one end far away from the first substrate, and the attaching area is internally provided with a viscosity enhancing part;
attaching a reinforcing plate, wherein the reinforcing plate comprises a first release film, a first adhesive layer, a body part, a second adhesive layer and a second release film which are sequentially stacked, and the step of attaching the reinforcing plate comprises tearing off the first release film and then correspondingly attaching and connecting the first adhesive layer and the viscosity enhancing part; and
and attaching a second substrate, namely tearing off the second release film, and bending the flexible OLED display panel to ensure that the bending area is connected with the second substrate correspondingly in an attaching manner on the second glue layer.
9. The method of claim 8, wherein the adhesion enhancing portion is a plurality of grooves disposed at intervals in the attachment area, wherein the grooves are formed by pressing the attachment area of the metal layer with a pressing head, the pressing head is provided with a plurality of ribs, the cross section of each rib is arc-shaped, and the height of each rib is 4-5 um.
10. The method of manufacturing an OLED display device according to claim 8, wherein the second adhesive layer has a lower adhesiveness than the first adhesive layer.
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| CN202110747558.6A CN113488520B (en) | 2021-07-02 | 2021-07-02 | OLED display device and manufacturing method thereof |
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| CN202110747558.6A CN113488520B (en) | 2021-07-02 | 2021-07-02 | OLED display device and manufacturing method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114863826A (en) * | 2022-04-12 | 2022-08-05 | 武汉华星光电半导体显示技术有限公司 | Display screen and manufacturing method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108682306A (en) * | 2018-07-18 | 2018-10-19 | 昆山国显光电有限公司 | Flexible display screen and display device |
| CN108735103A (en) * | 2018-05-31 | 2018-11-02 | 京东方科技集团股份有限公司 | A kind of display backboard |
| CN110799898A (en) * | 2017-11-01 | 2020-02-14 | 谷歌有限责任公司 | Display device comprising a support structure for bending |
| KR20200055481A (en) * | 2018-11-13 | 2020-05-21 | 엘지디스플레이 주식회사 | Flexible display apparatus |
| CN112863346A (en) * | 2021-01-14 | 2021-05-28 | 武汉华星光电半导体显示技术有限公司 | Display panel and display device |
-
2021
- 2021-07-02 CN CN202110747558.6A patent/CN113488520B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110799898A (en) * | 2017-11-01 | 2020-02-14 | 谷歌有限责任公司 | Display device comprising a support structure for bending |
| CN108735103A (en) * | 2018-05-31 | 2018-11-02 | 京东方科技集团股份有限公司 | A kind of display backboard |
| CN108682306A (en) * | 2018-07-18 | 2018-10-19 | 昆山国显光电有限公司 | Flexible display screen and display device |
| KR20200055481A (en) * | 2018-11-13 | 2020-05-21 | 엘지디스플레이 주식회사 | Flexible display apparatus |
| CN112863346A (en) * | 2021-01-14 | 2021-05-28 | 武汉华星光电半导体显示技术有限公司 | Display panel and display device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114863826A (en) * | 2022-04-12 | 2022-08-05 | 武汉华星光电半导体显示技术有限公司 | Display screen and manufacturing method thereof |
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| CN113488520B (en) | 2023-11-03 |
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