CN116113259A - Support film, polaroid, OLED display module and preparation method of OLED display module - Google Patents
Support film, polaroid, OLED display module and preparation method of OLED display module Download PDFInfo
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- CN116113259A CN116113259A CN202310116719.0A CN202310116719A CN116113259A CN 116113259 A CN116113259 A CN 116113259A CN 202310116719 A CN202310116719 A CN 202310116719A CN 116113259 A CN116113259 A CN 116113259A
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- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
- G02B5/3025—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state
- G02B5/3033—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid
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Abstract
The invention relates to a support film, a polaroid, an OLED display module and a preparation method thereof. The support film comprises a support film main body and an adhesive layer formed on one side of the support film main body; the support film comprises a first partition and a second partition to be partitioned; the adhesive layer comprises a first adhesive distribution area and a second adhesive distribution area, the first adhesive distribution area is provided with a first adhesive material, and the first adhesive distribution area comprises a first partition; the second glue distributing area is provided with a second glue material or a glue-free material, and spans a dividing line connected between the first partition and the second partition; the first and second glue dispensing areas are configured such that an adhesion force of the second glue dispensing area is lower than an adhesion force of the first glue dispensing area when the first and second partitions are divided. The supporting film is arranged in the cutting and separating area, so that the packaging structure of the OLED display module is not easy to damage, substances such as outside water and oxygen are not easy to permeate into the OLED display module, and the damage probability of the OLED display module is correspondingly reduced.
Description
Technical Field
The invention relates to the technical field of display, in particular to a support film, a polaroid, an OLED display module and a preparation method thereof.
Background
In recent years, a full screen is continuously pursued in products such as mobile phones, and in order to adapt to the design of front cameras, the screen patterns of the products such as mobile phones are increasingly diversified, and Liu Haibing, a water drop screen, a pill screen and the like are appeared. For these Liu Haibing, drop screens, pill screens, etc., it is also often necessary to cut the panel away from a portion after the screen panel is prepared to form the specific shape. Taking an OLED display screen as an example, the OLED display screen is generally prepared on a flexible substrate, and a polaroid and a supporting film are respectively adhered to two sides of the OLED display screen; when the cutting and removing operation is performed, as the adhesive force of the polaroid and the adhesive on the support film is large, the encapsulation of the OLED display screen is easily damaged at the edge of the cut and removed area, so that water, oxygen and other components easily enter the OLED display screen in the area, and the normal operation of the OLED display screen is damaged.
Disclosure of Invention
The invention provides a support film, a polaroid, an OLED display module and a preparation method thereof, which are used for solving the technical problems that the packaging structure of an OLED display panel is easily damaged when the OLED display panel is divided to form Liu Haibing, a water drop screen and the like in the prior art, and external substances such as water and oxygen easily enter the OLED display panel to cause the damage of the OLED display panel or influence the performance of the OLED display panel.
The invention provides a support film, which comprises a support film main body and an adhesive layer formed on one side of the support film main body; the support film comprises a first partition and a second partition to be partitioned; the adhesive layer comprises a first adhesive distribution area and a second adhesive distribution area, the first adhesive distribution area is provided with a first adhesive material, and the first adhesive distribution area comprises a first partition; the second glue distribution area is provided with a second glue material or a glue-free material, and spans a dividing line connected between the first partition and the second partition; the first and second glue dispensing areas are configured such that, when the first and second partitions are partitioned, an adhesion force of the second glue dispensing area is lower than an adhesion force of the first glue dispensing area.
The viscosity of the second glue material arranged in the second glue distribution area is smaller than that of the first glue material; or alternatively
And the second glue material arranged in the second glue distribution area is glue reducing glue, and the second glue material is subjected to glue reducing treatment before the first partition and the second partition are divided.
The number of the second glue distributing areas is multiple, the second glue distributing areas are arranged at intervals along the dividing lines of the first partition and the second partition, and the first glue distributing areas are arranged between the adjacent second glue distributing areas.
Wherein the second glue distribution area is in a strip shape.
The polarizer provided by the invention comprises a polarizer main body and an adhesive layer formed on one side of the polarizer main body; the polaroid comprises a first partition area and a second partition area to be segmented; the adhesive layer comprises a first adhesive distribution area and a second adhesive distribution area, the first adhesive distribution area is provided with a first adhesive material, and the first adhesive distribution area comprises a first partition; the second glue distribution area is provided with a second glue material or a glue-free material, and spans a dividing line connected between the first partition and the second partition; the first and second glue dispensing areas are configured such that, when the first and second partitions are partitioned, an adhesion force of the second glue dispensing area is lower than an adhesion force of the first glue dispensing area.
The viscosity of the second glue material arranged in the second glue distribution area is smaller than that of the first glue material; or alternatively
And the second glue material arranged in the second glue distribution area is glue reducing glue, and the second glue material is subjected to glue reducing treatment before the first partition and the second partition are divided.
The number of the second glue distributing areas is multiple, the second glue distributing areas are arranged at intervals along the dividing lines of the first partition and the second partition, and the first glue distributing areas are arranged between the adjacent second glue distributing areas.
Wherein the second glue distribution area is in a strip shape.
The invention provides a preparation method of an OLED display module, which comprises the following steps:
providing an OLED display panel, a support film and a polaroid;
attaching a support film to a first side of the OLED display panel, and attaching a polarizer to a second side of the OLED display panel; the support film is the support film, and the polaroid is the polaroid;
cutting the first partition and the second partition along a dividing line of the first partition and the second partition;
the second partition is stripped from the first partition.
The OLED display module is prepared according to the preparation method of the OLED display module.
Compared with the prior art, the support film, the polaroid, the OLED display module and the preparation method thereof provided by the invention have the following advantages:
according to the support film provided by the invention, the partial area on the dividing line is the second glue distribution area, the glue material distributed in the second glue distribution area is the second glue material or the glue material is not distributed, and the adhesive force in the area is lower or the adhesive force is not provided, so that the first partition and the second partition can be easily separated at the second glue distribution area. In addition, when the second partition is separated from the first partition as a whole, the second partition can be separated from the first partition more easily because the second partition has a lower adhesive strength as a whole than the first partition having a higher adhesive strength because the second adhesive distribution area is a partial area of the dividing line and the second adhesive is a partial area of the dividing line. In addition, when the second partition is separated from the first partition, the encapsulation of the OLED display panel is not easy to damage, and the encapsulation structure of the OLED display panel adjacent to the parting line can be better preserved, so that the possibility of water, oxygen and other substances seeping into the OLED display panel from the area can be reduced, and the probability that the OLED display panel is damaged or the display performance is influenced is reduced.
According to the polaroid provided by the invention, the partial area on the dividing line is the second glue distribution area, the glue material distributed in the second glue distribution area is the second glue material or the glue material is not distributed, and the adhesive force of the area is lower or the adhesive force is not provided, so that the first partition area and the second partition area can be easily separated at the second glue distribution area. In addition, when the second partition is separated from the first partition as a whole, the second partition can be separated from the first partition more easily because the second partition has a lower adhesive strength as a whole than the first partition having a higher adhesive strength because the second adhesive distribution area is a partial area of the dividing line and the second adhesive is a partial area of the dividing line. In addition, when the second partition is separated from the first partition, the encapsulation of the OLED display panel is not easy to damage, and the encapsulation structure of the OLED display panel adjacent to the parting line can be better preserved, so that the possibility of water, oxygen and other substances seeping into the OLED display panel from the area can be reduced, and the probability that the OLED display panel is damaged or the display performance is influenced is reduced.
The OLED display panel and the preparation method thereof provided by the invention comprise the supporting film and the polaroid, or the supporting film and the polaroid are adopted in the preparation process, and the packaging structure of the OLED display module is not easy to damage in a cutting and separating area, so that substances such as outside water, oxygen and the like are not easy to permeate into the OLED display module, and the probability that the OLED display module is damaged or the working performance is influenced is correspondingly reduced.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, and it will be obvious to a person skilled in the art that other drawings can be obtained from these drawings without inventive effort.
FIG. 1 is a schematic view of a support film according to an embodiment of the present invention;
FIG. 2 is a schematic illustration of a first section and a second section of the support film of FIG. 1;
FIG. 3 is a schematic view of a first glue spreading area and a second glue spreading area in the support film shown in FIG. 1;
FIG. 4 is a schematic diagram of a polarizer according to an embodiment of the present invention;
FIG. 5 is a schematic view of a first and a second region of the polarizer shown in FIG. 4;
FIG. 6 is a schematic diagram of a first glue spreading region and a second glue spreading region in the polarizer shown in FIG. 4;
fig. 7 is a flowchart of a method for manufacturing an OLED display module according to an embodiment of the invention.
In the figure:
10-a support film; 11-a support membrane body; 12-an adhesive layer;
a1-a first partition; a2-a second partition; l1-dividing line;
121-a first glue distribution area; 122-a second glue spreading area;
20-a polarizer; 21-a polarizer body; 22-an adhesive layer;
b1-a first partition; b2-a second partition; l2-dividing line;
221-a first glue spreading area; 222-second glue spreading area.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Embodiments of a support film, a polarizer, an OLED display module, and a method for manufacturing the same provided by the present invention are described below with reference to the accompanying drawings.
In one embodiment of the support film of the present invention, referring to fig. 1, the support film 10 includes a support film body 11 and an adhesive layer 12 formed on one side of the support film body 11, as viewed from the composition of the laminated structure, wherein the support film body 11 is used for supporting the structure such as an OLED display panel, and the adhesive layer 12 is used for bonding the support film body 11 to the structure such as an OLED display panel. Specifically, for the OLED display panel, after the hard glass substrate is peeled off, each layer structure of the OLED display panel is formed on the flexible substrate, and the support thereof is insufficient, and at this time, the support film body 11 is adhered to one side of the flexible substrate through the adhesive layer 12, so that the OLED display panel can be supported.
Referring to fig. 2 and 3, the support film 10 includes a first partition A1 and a second partition A2 to be divided, as viewed from a large area of the support film 10. The first partition A1 and the second partition A2 approximately correspond to the overall shape structure of the OLED display panel to be attached, wherein the first partition A1 corresponds to a display area of the OLED display panel, the second partition A2 corresponds to a local area on the OLED display panel to be removed, for example, for an OLED display panel in a Liu Haibing shape, a part of the area in the middle of the top of the screen needs to be removed, and the second partition A2 corresponds to the area; for a hollowed out screen or pill screen, a partial area, typically at the top left, right or middle of the screen, needs to be removed, the second partition A2 corresponding to this area.
In order to ensure that the support film 10 is adhered to the OLED display panel or the like, the support film 10 can completely adhere the OLED display panel to cover the OLED display panel even if there is a deviation in adhesion, and the support film 10 has a larger size than the OLED display panel. Accordingly, as shown in fig. 2, the first and second partitions A1 and A2 are partial areas of the support film 10, and the first and second partitions A1 and A2 are spaced apart from the edge of the support film.
Referring to fig. 3, the adhesive layer 12 includes a first adhesive dispensing region 121 and a second adhesive dispensing region 122, the first adhesive dispensing region 121 is provided with a first adhesive material, and the first adhesive dispensing region 121 includes a first partition A1; the second glue spreading area 122 is provided with a second glue material, and the second glue spreading area 122 spans a parting line L1 of the connection between the first partition A1 and the second partition A2. The first and second glue dispensing areas 121 and 122 are configured such that the adhesion of the second glue dispensing area 122 is lower than the adhesion of the first glue dispensing area 121 when the first and second partitions A1 and A2 are divided.
In this embodiment, the first adhesive material disposed in the first adhesive distribution area 121 may be a pressure sensitive adhesive with high viscosity, and the first adhesive material may firmly adhere and fix the supporting film body 11 and the OLED display panel when the supporting film 10 is adhered to the OLED display panel.
The second glue material disposed in the second glue spreading region 122 may have a lower viscosity than the first glue material disposed in the first glue spreading region 121. Alternatively, the second glue material disposed in the second glue spreading region 122 is a glue reducing glue, such as UV glue reducing glue; specifically, for selecting the glue reducing agent as the second glue material, when the support film 10 and the OLED display panel are adhered together, the second glue material of the second glue distributing area 122 may have higher viscosity, and after the adhesion and before the first partition A1 and the second partition A2 are divided, the second glue material disposed in the second glue distributing area 122 is subjected to a glue reducing treatment, for example, UV light is used to irradiate the second glue distributing area 122, so that the viscosity of the second glue material is lower.
According to the above, the second adhesive material disposed in the second adhesive distribution area 122 is selected to be a lower adhesive material or a glue reducing material, and when the first partition A1 and the second partition A2 are divided, the adhesion force of the second adhesive distribution area 122 to the supporting film main body 11 and the OLED display panel is lower than the adhesion force of the first adhesive distribution area 121 to the supporting film main body 11 and the OLED display panel.
In this embodiment, in the second partition A2, a partial area is a first glue dispensing area 121, and a partial area is a second glue dispensing area 122. So arranged, on the one hand, a sufficient area is ensured in the second partition A2 for the first glue distribution area 121, so that the glue layer 12 has a sufficient adhesion between the support film body 11 and the OLED display panel; on the other hand, the area of the first adhesive distribution area 121 is not excessively large in the second partition A2, so that the adhesion of the adhesive layer 12 to the supporting film body 11 and the OLED display panel is not excessively large in the entire area of the second partition A2, so that the second partition A2 is separated from the first partition A1 after the subsequent division.
Referring to fig. 2 and 3, at the parting line L1 where the first and second partitions A1 and A2 meet, the second glue application area 122 spans the parting line L1. In this sense, at least a part of the area extending along the dividing line L1 is the second glue distributing area 122, and it is easy to say that at least a part of the area on the dividing line L1 is the second glue material, instead of the first glue material with higher viscosity.
In this embodiment, after the first partition A1 and the second partition A2 are divided, the first partition A1 and the second partition A2 are separated, and since the partial area on the dividing line L1 is the second glue distributing area 122, the glue material distributed therein is the second glue material, and the adhesive force in this area is low, the first partition A1 and the second partition A2 can be easily separated at this second glue distributing area 122. When the second partition A2 is separated from the first partition A1 as a whole, the second partition A2 can be separated from the first partition A1 more easily because the second adhesive distribution area 122 is a partial area on the dividing line L1 and the second adhesive is a partial area therein, as compared with the case where the dividing line L1 is entirely the first adhesive distribution area 121 and is entirely the first adhesive having high adhesive force, the adhesive force is lower as a whole. In addition, when the second partition A2 is separated from the first partition A1, the package of the OLED display panel is not easily damaged, and the package structure of the OLED display panel adjacent to the dividing line L1 can be better preserved, so that the possibility of water, oxygen and other substances penetrating into the OLED display panel from the area can be reduced, and the probability of damaging or affecting the display performance of the OLED display panel can be reduced.
In another embodiment of the support film, the second glue spreading area 122 may also be provided without glue. That is, the entire support film 10 is hollowed out (for the adhesive layer 12) in the second adhesive distribution area 122. In this embodiment, when the first and second partitions A1 and A2 are separated after the first and second partitions A1 and A2 are separated, there is no adhesion in the second glue distribution area 122, and similarly to the above embodiment, it is also possible to more easily separate the second partition A2 from the first partition A1 and reduce damage to the encapsulation of the OLED display panel, thereby reducing the possibility of penetrating water, oxygen, etc. from the partition area into the OLED display panel, and reducing the probability that the OLED display panel is damaged or the display performance is affected as a result.
In one embodiment of the support film, the number of the second glue spreading areas 122 is plural, the plural second glue spreading areas 122 are disposed at intervals along the dividing line L1 of the first partition A1 and the second partition A2, and the first glue spreading area 121 is between the adjacent second glue spreading areas 122. In this embodiment, the first and second adhesive dispensing regions 121 and 122 are spaced apart along the dividing line L1, so that the adhesive force of the adhesive layer 12 between the support film body 11 and the OLED display panel in the extending direction of the dividing line L1 is substantially uniform, so that the adhesive force is not excessively large in a partial region but excessively small in another partial region.
Specifically, each of the second glue dispensing areas 122 has a strip shape, which may extend from the edge of the support film 10 to a position beyond the dividing line L1 of the first and second partitions A1 and A2. In such a case, the second glue spreading region 122 is of a simple geometry, and it is simpler to lay out the second glue material (or not to provide the glue material) in the second glue spreading region 122, and correspondingly, it is simpler to lay out the first glue material in the first glue spreading region 121. At the same time, each second glue spreading area 122 can also be ensured to cross the parting line L1 of the first partition A1 and the second partition A2 simply and conveniently.
In one embodiment of the polarizer of the present invention, referring to fig. 4, the polarizer 20 includes a polarizer body 21 and an adhesive layer 22 formed at one side of the polarizer body 21, as viewed from the lamination structure composition. The polarizer body 21 is used for being attached to the light-emitting surface side of an OLED display panel and other structures and transmitting light with a specific polarization direction; the adhesive layer 22 is used for adhering the polarizer body 21 to the light-emitting surface side of, for example, an OLED display panel.
Referring to fig. 5 and 6, the polarizer 20 includes a first partition B1 and a second partition B2 to be divided, as viewed from a large area of the polarizer 20. The first partition B1 and the second partition B2 approximately correspond to the overall shape structure of the OLED display panel to be attached, where the first partition B1 corresponds to a display area of the OLED display panel, the second partition B2 corresponds to a local area on the OLED display panel that needs to be removed, for example, for an OLED display panel in a Liu Haibing shape, a partial area in a middle position of a top of a screen of the OLED display panel needs to be removed, and the second partition B2 corresponds to the area; for a hollowed out screen or pill screen, a partial area usually on the left, right or middle of the top of the screen needs to be removed, the second partition B2 corresponding to this area. As is apparent from the above description, the first and second partitions B1 and B2 also correspond to the first and second partitions A1 and A2 of the support film 10, respectively.
For the polarizer 20, in order to ensure that the polarizer 20 is bonded to the OLED display panel or the like, even if a deviation of the bonding occurs, the polarizer 20 can be attached to the OLED display panel and entirely cover the OLED display panel, and the size of the polarizer 20 is larger than that of the OLED display panel. Accordingly, as shown in fig. 5, the first and second partitions B1 and B2 are partial regions of the polarizer 20, and the first and second partitions B1 and B2 have a distance from an edge of the polarizer 20.
Referring to fig. 6, the adhesive layer 22 includes a first adhesive distribution area 221 and a second adhesive distribution area 222, a first adhesive material is distributed in the first adhesive distribution area 221, and the first adhesive distribution area 221 includes a first partition B1; the second glue spreading area 222 is provided with a second glue material, and the second glue spreading area 222 spans a parting line L2 of the connection between the first partition B1 and the second partition B2. The first and second glue dispensing areas 221 and 222 are configured such that the adhesion force of the second glue dispensing area 222 is lower than that of the first glue dispensing area 221 when the first and second partitions B1 and B2 are divided.
In this embodiment, the first adhesive material disposed in the first adhesive distribution area 221 may be a pressure sensitive adhesive with high viscosity, and the first adhesive material may firmly adhere and fix the polarizer body 21 and the OLED display panel when the polarizer 20 and the OLED display panel are adhered.
The second glue material disposed in the second glue spreading region 222 may have a lower viscosity than the first glue material disposed in the first glue spreading region 221. Alternatively, the second glue material disposed in the second glue spreading region 222 is a glue reducing glue, such as UV glue reducing glue; specifically, for selecting the viscosity reducing adhesive as the second adhesive, the second adhesive of the second adhesive distribution area 222 may have higher viscosity when the polarizer 20 and the OLED display panel are adhered together, and after the adhesion and before the division of the first partition B1 and the second partition B2, the second adhesive disposed in the second adhesive distribution area 222 is subjected to viscosity reducing treatment, for example, UV light is used to irradiate the second adhesive distribution area 222, so that the viscosity of the second adhesive is lower.
According to the above, the second adhesive material disposed in the second adhesive distribution area 222 is selected to be a lower adhesive material or a glue reducing adhesive material, and when the first partition B1 and the second partition B2 are divided, the adhesion force of the second adhesive distribution area 222 to the polarizer body 21 and the OLED display panel is lower than the adhesion force of the first adhesive distribution area 221 to the polarizer body 21 and the OLED display panel.
In this embodiment, in the second partition B2, a partial area is a first glue dispensing area 221, and a partial area is a second glue dispensing area 222. So arranged, on the one hand, a sufficient area is ensured in the second partition B2 for the first glue distributing area 221, so that the glue layer 22 has a sufficient adhesion between the polarizer body 21 and the OLED display panel; on the other hand, the area of the first adhesive distribution area 221 is not excessively large in the second partition B2, so that the adhesion of the adhesive layer 22 to the polarizer body 21 and the OLED display panel in the entire area of the second partition B2 is not excessively large, so that the second partition B2 is separated from the first partition B1 after the division.
Referring to fig. 5 and 6, at the parting line L2 where the first partition B1 and the second partition B2 meet, the second glue dispensing area 222 spans the parting line L2. In this sense, at least a part of the area extending along the dividing line L2 is the second glue distributing area 222, and it is easy to say that at least a part of the area on the dividing line L2 is the second glue material, instead of the first glue material with higher viscosity.
In this embodiment, after the first partition B1 and the second partition B2 are divided, the first partition B1 and the second partition B2 are separated, and since the partial area on the dividing line L2 is the second glue distributing area 222, the glue material distributed therein is the second glue material, and the adhesive force in this area is low, the first partition B1 and the second partition B2 can be easily separated at this second glue distributing area 222. When the second partition B2 is separated from the first partition B1 as a whole, the second partition B2 can be separated from the first partition B1 more easily because the second adhesive distribution area 222 is a partial area on the dividing line L2 and the second adhesive is a partial area therein, as compared with the case where the dividing line L2 is entirely the first adhesive distribution area 221 and is entirely the first adhesive having a higher adhesive force. In addition, when the second partition B2 is separated from the first partition B1, the package of the OLED display panel is not easily damaged, and the package structure of the OLED display panel adjacent to the dividing line L2 can be better preserved, so that the possibility of water, oxygen and other substances penetrating into the OLED display panel from the area can be reduced, and the probability of damaging or affecting the display performance of the OLED display panel can be reduced.
In one embodiment of the polarizer, the second glue spreading region 222 is not provided with glue. That is, for the whole polarizer 20, the second adhesive distribution area 222 is hollowed out (for the adhesive layer 21). In this embodiment, when the first partition B1 and the second partition B2 are separated after the first partition B1 and the second partition B2 are separated, there is no adhesion in the second glue distribution area 222, and similar to the above embodiment, it is also easier to separate the second partition B2 from the first partition B1, and the damage to the package of the OLED display panel is reduced, so that the possibility of penetrating water, oxygen, and other substances from the partition area into the OLED display panel is reduced, and the probability of damaging or affecting the display performance of the OLED display panel is reduced.
In one embodiment of the polarizer, the number of the second glue spreading areas 222 is plural, the plural second glue spreading areas 222 are disposed at intervals along the dividing line L2 between the first partition B1 and the second partition B2, and the first glue spreading area 221 is between the adjacent second glue spreading areas 222. In this embodiment, the first and second adhesive dispensing regions 221 and 222 are spaced apart along the dividing line L2, so that the adhesive layer 22 may have substantially uniform adhesion between the polarizer body 21 and the OLED display panel in the extending direction of the dividing line L2, so that the adhesion is not excessively large in a partial region but excessively small in another partial region.
Specifically, each of the second adhesive dispensing regions 222 may have a bar shape, which may extend from an edge of the polarizer 20 to a position crossing the dividing line L2 of the first and second partitions B1 and B2. In such a case, the second glue spreading region 222 has a simple geometry, and it is simpler to apply the second glue material (or not apply the glue material) in the second glue spreading region 222, and correspondingly, it is simpler to apply the first glue material in the first glue spreading region 221. At the same time, each second glue spreading area 222 can also be ensured to cross the parting line L2 of the first partition B1 and the second partition B2 simply and conveniently.
In one embodiment of the method for manufacturing an OLED display module of the present invention, the method for manufacturing an OLED display module includes the following steps S1 to S4.
Before step S1, as a preceding step, an OLED display panel, a support film, and a polarizer are first provided. Then, the steps such as step S1 are performed.
In step S1, a support film 10 is attached to a first side of the OLED display panel, and the support film 10 is the support film described in the above embodiments.
In step S1, the OLED display panel is in a state after being prepared and packaged. That is, each light emitting functional layer of the OLED display panel has been prepared on a hard glass substrate, and has been peeled off, and each light emitting functional layer of the OLED display panel is formed on a flexible substrate. The package of the OLED display panel may specifically be a thin film package or the like. Since the hard glass substrate is peeled off, the support performance of the OLED display panel is insufficient, and therefore, the support film 10 is attached to one side of the OLED display panel in this step S1 to strengthen the support performance of the OLED display panel.
Specifically, in step S1, the first side of the OLED display panel may be the back side (non-light-emitting side) thereof, that is, the support film 10 may be specifically attached to the back side (non-light-emitting side) of the OLED display panel.
Step S2, attaching the polaroid 20 to the second side of the OLED display panel; the polarizer 20 employs the polarizer described in the above embodiments.
In step S2, the second side of the OLED display panel may be the light-emitting side thereof, that is, the polarizer 20 may be specifically attached to the light-emitting side of the OLED display panel. The polarizer 20 attached to the light emitting surface of the OLED display panel may transmit light having a specific polarization direction among the light emitted from the light emitting surface of the OLED display panel.
The time sequence of execution of the steps S1 and S2 may be that the step S1 is executed first and then the step S2 is executed second, but the present invention is not limited thereto, and the step S2 may be executed first and then the step S1 may be executed.
And S3, cutting the first partition and the second partition along the dividing line of the first partition and the second partition.
The first and second partitions A1 and A2 on the support film 10 as described in the above embodiment are identical to the first and second partitions B1 and B2 on the polarizer 20. The first and second partitions A1 and A2 on the support film 10, that is, the first and second partitions B1 and B2 on the polarizer 20, are described in step S3.
In step S3, the first and second partitions may be cut by using a laser cutting method.
It should be noted that, if the second glue material disposed in the second glue distribution area of the support film 10 and/or the polarizer 20 is a glue reducing glue, before the first and second partitions are cut in step S3, a treatment such as UV light irradiation is performed on the second glue distribution area of the support film 10 and/or the polarizer 20 to reduce the adhesion of the second glue material disposed in the second glue distribution area.
And S4, stripping the second partition from the first partition.
In step S4, since the second glue distribution area is provided at the cutting line connected between the first partition and the second partition, the adhesion force of the second glue distribution area is lower, so that the overall adhesion force between the support film 10, the polarizer 20 and the OLED display panel in the second partition is reduced, and when the second partition is peeled off from the first partition, the smaller adhesion force helps to protect the packaging structure of the OLED display panel, so as to avoid the damage of the packaging structure of the OLED display panel in the cut and separated area, and thus, for the OLED display panel, external water, oxygen and other substances are not easy to enter the OLED display panel from the area, and the OLED display panel is not easy to be damaged or affect the display performance due to the penetration of other substances.
In one embodiment of the OLED display module of the present invention, the OLED display module is manufactured according to the method for manufacturing the OLED display module described in the above embodiment.
In the embodiment of the invention, the OLED display module is prepared according to the preparation method of the OLED display module, and certainly has the beneficial effects consistent with the preparation method of the OLED display module, and the packaging structure of the OLED display module is not easy to damage in a cutting and separating area, so that substances such as outside water, oxygen and the like are not easy to permeate into the OLED display module, and the probability of damaging the OLED display module or affecting the working performance is correspondingly reduced.
It should be noted that in this document, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The foregoing is only a specific embodiment of the invention to enable those skilled in the art to understand or practice the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A support film, characterized in that the support film comprises a support film body and an adhesive layer formed on one side of the support film body;
the support film comprises a first partition and a second partition to be partitioned;
the adhesive layer comprises a first adhesive distribution area and a second adhesive distribution area, the first adhesive distribution area is provided with a first adhesive material, and the first adhesive distribution area comprises a first partition;
the second glue distribution area is provided with a second glue material or a glue-free material, and spans a dividing line connected between the first partition and the second partition;
the first and second glue dispensing areas are configured such that, when the first and second partitions are partitioned, an adhesion force of the second glue dispensing area is lower than an adhesion force of the first glue dispensing area.
2. The support film of claim 1, wherein the second glue material disposed in the second glue distribution area has a lower tackiness than the first glue material; or alternatively
And the second glue material arranged in the second glue distribution area is glue reducing glue, and the second glue material is subjected to glue reducing treatment before the first partition and the second partition are divided.
3. The support film of claim 1, wherein the number of second glue distribution areas is plural, the plural second glue distribution areas are arranged at intervals along the dividing lines of the first and second partitions, and the first glue distribution area is arranged between adjacent second glue distribution areas.
4. A support film according to claim 3, wherein the second glue spreading area is in the form of a strip.
5. The polarizer is characterized by comprising a polarizer main body and an adhesive layer formed on one side of the polarizer main body;
the polaroid comprises a first partition area and a second partition area to be segmented;
the adhesive layer comprises a first adhesive distribution area and a second adhesive distribution area, the first adhesive distribution area is provided with a first adhesive material, and the first adhesive distribution area comprises a first partition;
the second glue distribution area is provided with a second glue material or a glue-free material, and spans a dividing line connected between the first partition and the second partition;
the first and second glue dispensing areas are configured such that, when the first and second partitions are partitioned, an adhesion force of the second glue dispensing area is lower than an adhesion force of the first glue dispensing area.
6. The polarizer of claim 5, wherein the second glue disposed in the second glue spreading area has a lower viscosity than the first glue; or alternatively
And the second glue material arranged in the second glue distribution area is glue reducing glue, and the second glue material is subjected to glue reducing treatment before the first partition and the second partition are divided.
7. The polarizer of claim 5, wherein the number of second glue spreading areas is plural, the plural second glue spreading areas are disposed at intervals along the dividing lines of the first and second partitions, and the first glue spreading area is disposed between adjacent second glue spreading areas.
8. The polarizer of claim 7, wherein the second glue spreading area is in the shape of a bar.
9. The preparation method of the OLED display module is characterized by comprising the following steps of:
providing an OLED display panel, a support film and a polaroid;
attaching the support film to a first side of the OLED display panel, and attaching the polarizer to a second side of the OLED display panel; the support film is the support film according to any one of claims 1 to 4, and the polarizer is the polarizer according to any one of claims 5 to 8;
cutting the first partition and the second partition along a dividing line of the first partition and the second partition;
and stripping the second partition from the first partition.
10. An OLED display module, wherein the OLED display module is prepared according to the method for preparing the OLED display module of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310116719.0A CN116113259A (en) | 2023-01-30 | 2023-01-30 | Support film, polaroid, OLED display module and preparation method of OLED display module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310116719.0A CN116113259A (en) | 2023-01-30 | 2023-01-30 | Support film, polaroid, OLED display module and preparation method of OLED display module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116113259A true CN116113259A (en) | 2023-05-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310116719.0A Pending CN116113259A (en) | 2023-01-30 | 2023-01-30 | Support film, polaroid, OLED display module and preparation method of OLED display module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116113259A (en) |
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2023
- 2023-01-30 CN CN202310116719.0A patent/CN116113259A/en active Pending
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