CN116113259A - Support film, polaroid, OLED display module and preparation method of OLED display module - Google Patents

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

Support film, polarizer, OLED display module and preparation method thereof

technical field

The invention relates to the field of display technology, in particular to a support film, a polarizer, an OLED display module and a preparation method thereof.

Background technique

In recent years, mobile phones and other products have been pursuing full screens. In order to adapt to the design of the front camera, the screen styles of mobile phones and other products have become increasingly diverse, such as notch screens, water drop screens, and pill screens. For these notch screens, water drop screens, pill screens, etc., after the screen panel is prepared, it is usually necessary to cut and remove a part of the panel to form the specific shape. Taking the OLED display as an example, it is generally prepared on a flexible substrate, and a polarizer and a support film are respectively adhered to both sides of the OLED display; The adhesion force is relatively strong, and it is easy to damage the packaging of the OLED display at the edge of the cut and removed area, so that water, oxygen and other components are easy to enter the OLED display in this area, which affects the normal operation of the OLED display. cause damage.

Contents of the invention

The present invention provides a support film, a polarizer, an OLED display module and a preparation method thereof, so as to solve the problem that the packaging of the OLED display panel is easily damaged when the OLED display panel is divided to form notch screens, water drop screens, etc. in the prior art The structure causes external substances such as water and oxygen to easily enter into the OLED display panel, causing damage to the OLED display panel or technical problems affecting the performance of the OLED display panel.

The support film provided by the present invention includes a support film main body and an adhesive layer formed on one side of the support film main body; the support film includes a first partition and a second partition to be divided; the adhesive layer includes a first A glue distribution area and a second glue distribution area, the first glue distribution area is equipped with a first adhesive material, and the first glue distribution area includes a first partition; the second glue distribution area is equipped with a second adhesive material or no adhesive material, the second adhesive area spans the connecting dividing line between the first subregion and the second subregion; the first adhesive area and the second adhesive area are configured to When the first sub-area and the second sub-area, the adhesive force of the second adhesive area is lower than the adhesive force of the first adhesive area.

Wherein, the viscosity of the second adhesive material arranged in the second adhesive distribution area is lower than the viscosity of the first adhesive material; or

The second adhesive material arranged in the second adhesive distribution area is a viscose-reducing adhesive, and the second adhesive material is subjected to visco-reducing treatment before dividing the first subregion and the second subregion.

Wherein, the number of the second adhesive distribution area is multiple, and the plurality of second adhesive distribution areas are arranged at intervals along the dividing line between the first subregion and the second subregion, and between adjacent second adhesive distribution regions is the first glue area.

Wherein, the second glue distribution area is strip-shaped.

The polarizer provided by the present invention includes a polarizer main body and an adhesive layer formed on one side of the polarizer main body; the polarizer includes a first partition and a second partition to be divided; the adhesive layer includes a first A glue distribution area and a second glue distribution area, the first glue distribution area is equipped with a first adhesive material, and the first glue distribution area includes a first partition; the second glue distribution area is equipped with a second adhesive material or no adhesive material, the second adhesive area spans the connecting dividing line between the first subregion and the second subregion; the first adhesive area and the second adhesive area are configured to When the first sub-area and the second sub-area, the adhesive force of the second adhesive area is lower than the adhesive force of the first adhesive area.

Wherein, the viscosity of the second adhesive material arranged in the second adhesive distribution area is lower than the viscosity of the first adhesive material; or

The second adhesive material arranged in the second adhesive distribution area is a viscose-reducing adhesive, and the second adhesive material is subjected to visco-reducing treatment before dividing the first subregion and the second subregion.

Wherein, the number of the second adhesive distribution area is multiple, and the plurality of second adhesive distribution areas are arranged at intervals along the dividing line between the first subregion and the second subregion, and between adjacent second adhesive distribution regions is the first glue area.

Wherein, the second glue distribution area is strip-shaped.

The preparation method of the OLED display module provided by the present invention comprises:

Provide OLED display panels, support films and polarizers;

Attaching the support film to the first side of the OLED display panel, and attaching the polarizer to the second side of the OLED display panel; the support film adopts the above-mentioned support film, and the polarizer adopts the above-mentioned polarizer;

cutting the first partition and the second partition along the dividing line between the first partition and the second partition;

Detach the second partition from the first partition.

The OLED display module provided by the present invention is prepared according to the above-mentioned preparation method of the OLED display module.

Compared with the prior art, the above-mentioned support film, polarizer, OLED display module and preparation method thereof provided by the present invention have the following advantages:

In the support film provided by the present invention, part of the area on the dividing line is the second glue distribution area, and the glue material arranged therein is the second glue material or no glue material is arranged, and the adhesive force in this area is relatively low. Or there is no adhesion, so the first subregion and the second subregion can be easily separated at the second glued area. Moreover, for the second subregion as a whole, when it is separated from the first subregion, since the partial area on the dividing line is the second glue area, and the second adhesive material is in it, compared with the part where the dividing line is completely In the case of the first adhesive distribution area, which is entirely the first adhesive material with higher adhesion, the overall adhesive force is lower, so it is also easier to separate the second subregion from the first subregion. Moreover, when the second subregion is separated from the first subregion, it is not easy to damage the packaging of the OLED display panel. For the OLED display panel, the packaging structure near the dividing line can be better preserved, thereby reducing The possibility of substances such as water and oxygen permeating into the OLED display panel from this area reduces the probability of the OLED display panel being damaged or affecting the display performance.

In the polarizer provided by the present invention, part of the area on the dividing line is the second adhesive area, and the adhesive material arranged in it is the second adhesive material or no adhesive material is arranged, and the adhesive force in this area is relatively low. Or there is no adhesion, so the first subregion and the second subregion can be easily separated at the second glued area. Moreover, for the second subregion as a whole, when it is separated from the first subregion, since the partial area on the dividing line is the second glue area, and the second adhesive material is in it, compared with the part where the dividing line is completely In the case of the first adhesive distribution area, which is entirely the first adhesive material with higher adhesion, the overall adhesive force is lower, so it is also easier to separate the second subregion from the first subregion. Moreover, when the second subregion is separated from the first subregion, it is not easy to damage the packaging of the OLED display panel. For the OLED display panel, the packaging structure near the dividing line can be better preserved, thereby reducing The possibility of substances such as water and oxygen permeating into the OLED display panel from this area reduces the probability of the OLED display panel being damaged or affecting the display performance.

The OLED display panel provided by the present invention and its preparation method include the above-mentioned support film and polarizer, or use the above-mentioned support film and polarizer in the preparation process. In the area of cutting and separation, the encapsulation structure of the OLED display module is not easy If it is destroyed, water, oxygen and other substances from the outside can hardly penetrate into the OLED display module, and the probability of the OLED display module being damaged or affecting the working performance is correspondingly reduced.

Description of 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 technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, In other words, other drawings can also be obtained from these drawings without paying creative labor.

Fig. 1 is the structural representation of the supporting film in the embodiment of the present invention;

Fig. 2 is the schematic diagram of the first partition and the second partition in the support membrane shown in Fig. 1;

Fig. 3 is the schematic diagram of the first glue distribution region and the second glue distribution region in the support film shown in Fig. 1;

FIG. 4 is a schematic structural view of a polarizer in an embodiment of the present invention;

Fig. 5 is a schematic diagram of the first subregion and the second subregion in the polarizer shown in Fig. 4;

Fig. 6 is a schematic diagram of the first glued area and the second glued area 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 present invention.

In the picture:

10-support film; 11-support film main body; 12-viscose layer;

A1-first partition; A2-second partition; L1-division line;

121-the first glue area; 122-the second glue area;

20-polarizer; 21-polarizer body; 22-adhesive layer;

B1-first partition; B2-second partition; L2-division line;

221 - the first glue distribution area; 222 - the second glue distribution area.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Embodiments of the supporting film, the polarizer, the OLED display module and the preparation method thereof provided by the present invention will be described below with reference to the accompanying drawings.

In one embodiment of the supporting film of the present invention, referring to Fig. 1, from the perspective of laminated structure composition, the supporting film 10 includes a supporting film main body 11 and an adhesive layer 12 formed on one side of the supporting film main body 11, wherein the supporting film The main body 11 is used to support structures such as OLED display panels, and the adhesive layer 12 is used to bond the supporting film main body 11 to structures such as OLED display panels. 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 its support is insufficient. 11 is bonded to one side of the flexible substrate to support the OLED display panel.

Referring to FIG. 2 and FIG. 3 , viewed from the large surface area of the support film 10 , the support film 10 includes a first partition A1 and a second partition A2 to be divided. The first partition A1 and the second partition A2 roughly correspond to the overall shape and structure of the OLED display panel to be bonded, wherein the first partition A1 corresponds to the display area of the OLED display panel, and the second partition A2 is the OLED display panel that needs to be removed. For example, for a notch-shaped OLED display panel, part of the area in the middle of the top of the screen needs to be removed, and the second partition A2 corresponds to this area; for a hollowed-out screen or a pill screen, usually in Part of the area on the left, right, or middle of the top of the screen needs to be removed, and the second partition A2 corresponds to this area.

For the support film 10, in order to ensure that when the support film 10 is bonded to the OLED display panel, the support film 10 can still completely paste and cover the OLED display panel even if there is a deviation in bonding. The size of the OLED display panel is larger than that of the OLED display panel. Therefore, as shown in FIG. 2 , the first subregion A1 and the second subregion A2 are partial regions of the supporting film 10 , and the first subregion A1 and the second subregion A2 have a certain distance from the edge of the supporting film.

Referring to Fig. 3, the adhesive layer 12 includes a first glue area 121 and a second glue area 122, the first glue area 121 is provided with a first adhesive material, and the first glue area 121 includes a first subregion A1; The second adhesive material is arranged in the adhesive distribution area 122 , and the second adhesive distribution area 122 straddles the connecting dividing line L1 between the first subregion A1 and the second subregion A2 . The first adhesive area 121 and the second adhesive area 122 are configured such that, when the first subregion A1 and the second subregion A2 are divided, the adhesive force of the second adhesive area 122 is lower than that of the first adhesive area 121. Attachment.

In this embodiment, the first adhesive material arranged in the first adhesive area 121 can be selected from pressure-sensitive adhesive with relatively high viscosity. When the support film 10 is attached to the OLED display panel, etc. The supporting film main body 11 and the OLED display panel can be firmly bonded and fixed.

The viscosity of the second adhesive disposed in the second adhesive distribution area 122 may be lower than that of the first adhesive disposed in the first adhesive distribution area 121 . Alternatively, the second adhesive material arranged in the second glue distribution area 122 is a viscosifying adhesive, such as UV viscous adhesive; When bonding together, the second glue material of the second glue cloth area 122 can have higher viscosity, after bonding and before dividing the first partition A1 and the second partition A2, the second glue cloth area 122 The laid second adhesive material is subjected to viscosity-reducing treatment, for example, UV light is used to irradiate the second adhesive laying area 122 to make the second adhesive material less viscous.

According to the above, no matter whether the second adhesive material arranged in the second adhesive distribution area 122 is selected as a lower-viscosity adhesive material or as a viscous-reducing adhesive, when dividing the first subregion A1 and the second subregion A2, both The adhesion force to the support film main body 11 and the OLED display panel in the second glue distribution area 122 can be lower than the adhesion force to the support film main body 11 and the OLED display panel in the first glue distribution area 121 .

In this embodiment, in the second subarea A2 , part of the area is the first glue-laying area 121 , and part of the area is the second glue-laying area 122 . This setting ensures that there is enough area in the second subregion A2 to be the first glue area 121 on the one hand, so that the adhesive layer 12 has sufficient adhesion between the supporting film main body 11 and the OLED display panel; and on the other hand On the one hand, in the second subarea A2, the area of the first glue distribution area 121 is not too large, so that the adhesive layer 12 is effective for the adhesion between the supporting film main body 11 and the OLED display panel in the entire area of the second subarea A2. The adhesive force should not be too large, so that the second subregion A2 can be separated from the first subregion A1 after division.

Referring to FIG. 2 and FIG. 3 , at the dividing line L1 where the first subarea A1 and the second subdivision A2 meet, the second adhesive distribution area 122 straddles the dividing line L1 . It means that at least a part of the area extending along the dividing line L1 is the second glue distribution area 122, in other words, at least a part of the area on the dividing line L1 is the second adhesive material instead of the first glue with higher viscosity. material.

In this embodiment, after the first subregion A1 and the second subregion A2 are divided, the first subregion A1 and the second subregion A2 are separated. Since part of the area on the dividing line L1 is the second glue-laying area 122, all the The adhesive material deployed is the second adhesive material, which has low adhesion in this area, so the first subregion A1 and the second subregion A2 can be easily separated at the second adhesive distribution area 122 . Moreover, for the second subregion A2 as a whole, when it is separated from the first subregion A1, since part of the area on the dividing line L1 is the second adhesive distribution area 122, and the second adhesive material is inside, compared with In the case where the parting line L1 is entirely the first adhesive area 121 and the first adhesive material with high adhesion, the overall adhesive force is lower, so it is also easier to separate the second subregion A2 from the first adhesive material. Partition A1 is detached. Moreover, when the second subregion A2 is separated from the first subregion A1, it is not easy to damage the packaging of the OLED display panel. For the OLED display panel, the packaging structure adjacent to the dividing line L1 can be better preserved, so that This can reduce the possibility of water, oxygen and other substances seeping into the OLED display panel from this area, and reduce the probability of the OLED display panel being damaged or affecting the display performance.

In another embodiment of the supporting film, no adhesive material may be provided in the second adhesive area 122 . That is, as far as the entire support film 10 is concerned, the hollowing out process is performed in the second glue distribution area 122 (for the adhesive layer 12 ). In this embodiment, after the first subregion A1 and the second subregion A2 are divided, when the first subregion A1 and the second subregion A2 are separated, there is no adhesive force in the second glue area 122, which is different from the above-mentioned embodiment. Similarly, it is also easier to separate the second subregion A2 from the first subregion A1, and reduce the damage to the encapsulation of the OLED display panel, thereby reducing the possibility of water, oxygen and other substances penetrating into the OLED display panel from the divided region Sex, reducing the chance of OLED display panels being damaged or affecting display performance.

In one embodiment of the support film, the number of the second adhesive distribution area 122 is multiple, and the plurality of second adhesive distribution areas 122 are arranged at intervals along the dividing line L1 between the first subregion A1 and the second subregion A2, and the adjacent first subregion A1 and the second subregion A2 are arranged at intervals. Between the two glued areas 122 is a first glued area 121 . In this embodiment, the first adhesive area 121 and the second adhesive area 122 are arranged at intervals along the dividing line L1, so that in the extending direction of the dividing line L1, the adhesive layer 12 is placed between the supporting film main body 11 and the OLED display panel. The adhesion between them is roughly uniform, so that the adhesion is not too large in some areas, and the adhesion is too small in other areas.

Specifically, each second adhesive distribution area 122 is strip-shaped, and can extend from the edge of the support film 10 to a position beyond the dividing line L1 between the first subregion A1 and the second subregion A2. Under such circumstances, the second glue distribution area 122 is a simple geometric shape, and it will be simpler to arrange the second glue material (or not set the glue material) in the second glue distribution area 122, and correspondingly, in the first glue distribution area 122 It is also easier to arrange the first adhesive material in the area 121 . At the same time, it can also be simply and conveniently ensured that each second adhesive distribution area 122 straddles the dividing line L1 between the first subregion A1 and the second subregion A2.

In an embodiment of the polarizer of the present invention, referring to FIG. 4 , from the perspective of the laminated structure, the polarizer 20 includes a polarizer body 21 and an adhesive layer 22 formed on one side of the polarizer body 21 . Wherein, the polarizer main body 21 is used to be attached to the light-emitting surface side of structures such as OLED display panels, and is used to transmit light with a specific polarization direction; the adhesive layer 22 is used to bond the polarizer main body 21 to, for example, an OLED display panel. side of the light emitting surface.

Referring to FIG. 5 and FIG. 6 , viewed from the large surface area of the polarizer 20 , the polarizer 20 includes a first partition B1 and a second partition B2 to be divided. The first partition B1 and the second partition B2 roughly correspond to the overall shape and structure of the OLED display panel to be bonded, wherein, the first partition B1 corresponds to the display area of the OLED display panel, and the second partition B2 is the OLED display panel that needs to be removed. For example, for a notch-shaped OLED display panel, part of the area in the middle of the top of the screen needs to be removed, and the second partition B2 corresponds to this area; for a hollowed-out screen or a pill screen, usually in Some areas on the left, right or middle of the top of the screen need to be removed, and the second partition B2 corresponds to this area. It can be known from the above description that the first subregion B1 and the second subregion B2 also respectively correspond to the first subregion A1 and the second subregion A2 of the support film 10 .

For the polarizer 20, in order to ensure that when the polarizer 20 is bonded to the OLED display panel, etc., even if there is a deviation in bonding, the polarizer 20 can still be attached to the OLED display panel and completely connect the OLED display panel. Covering, the size of the polarizer 20 is larger than that of the OLED display panel. Therefore, as shown in FIG. 5 , the first subregion B1 and the second subregion B2 are partial regions of the polarizer 20 , and the first subregion B1 and the second subregion B2 have a certain distance from the edge of the polarizer 20 .

Referring to Fig. 6, the adhesive layer 22 includes a first glue area 221 and a second glue area 222, the first glue area 221 is provided with a first adhesive material, and the first glue area 221 includes a first subregion B1; The second adhesive material is disposed in the second adhesive area 222 , and the second adhesive area 222 straddles the connecting dividing line L2 between the first subregion B1 and the second subregion B2 . The first adhesive area 221 and the second adhesive area 222 are configured such that, when the first subregion B1 and the second subregion B2 are divided, the adhesion of the second adhesive area 222 is lower than that of the first adhesive area 221. Attachment.

In this embodiment, the first adhesive material arranged in the first adhesive area 221 can be selected from pressure-sensitive adhesive with high viscosity. When the polarizer 20 is attached to the OLED display panel, the above-mentioned first adhesive material The polarizer main body 21 and the OLED display panel can be firmly bonded and fixed.

The viscosity of the second adhesive material disposed in the second adhesive distribution area 222 may be lower than the viscosity of the first adhesive material disposed in the first adhesive distribution area 221 . Alternatively, the second adhesive material arranged in the second glue distribution area 222 is a viscosifying adhesive, such as a UV viscous adhesive; When bonding together, the second adhesive material of the second glue cloth area 222 can have higher viscosity, after bonding and before dividing the first partition B1 and the second partition B2, the second glue cloth area 222 The laid second adhesive material is subjected to viscosity-reducing treatment, for example, UV light is used to irradiate the second adhesive laying area 222 to make the second adhesive material less viscous.

According to the above, no matter whether the second adhesive material arranged in the second adhesive distribution area 222 is selected as a lower-viscosity adhesive material or as a viscous-reducing adhesive, when dividing the first subregion B1 and the second subregion B2, both The adhesion force to the polarizer body 21 and the OLED display panel in the second glue area 222 can be lower than the adhesion force to the polarizer body 21 and the OLED display panel in the first glue area 221 .

In this embodiment, in the second subarea B2 , part of the area is the first glue-laying area 221 , and part of the area is the second glue-laying area 222 . This setting ensures that there is enough area in the second subregion B2 to be the first glue area 221 on the one hand, so that the adhesive layer 22 has sufficient adhesion between the polarizer main body 21 and the OLED display panel; and on the other hand On the one hand, in the second subregion B2, the area of the first adhesive cloth area 221 is not too large, so that the adhesive layer 22 is effective for the adhesion between the polarizer main body 21 and the OLED display panel in the entire area of the second subregion B2. The adhesive force should not be too large, so that the second subregion B2 can be separated from the first subregion B1 after division.

Referring to FIG. 5 and FIG. 6 , at the dividing line L2 where the first subregion B1 and the second subregion B2 meet, the second adhesive distribution area 222 straddles the dividing line L2 . It means that at least part of the area extending along the dividing line L2 is the second glue distribution area 222. In other words, at least a part of the area on the dividing line L2 is the second adhesive material instead of the first glue with higher viscosity. material.

In this embodiment, after the first subregion B1 and the second subregion B2 are divided, the first subregion B1 and the second subregion B2 are separated. Since part of the area on the dividing line L2 is the second glue area 222, all the The glue laid out is the second glue material, which has a lower adhesive force in this region, so the first subregion B1 and the second subregion B2 can be easily separated at the second glue distribution region 222 . Moreover, for the second subregion B2 as a whole, when it is separated from the first subregion B1, since the partial area on the dividing line L2 is the second adhesive distribution area 222, which contains the second adhesive material, compared with In the case where the parting line L2 is entirely the first adhesive area 221 and the first adhesive material with high adhesion, the overall adhesive force is lower, so it is also easier to separate the second subregion B2 from the first adhesive material. Partition B1 is detached. Moreover, when the second subregion B2 is separated from the first subregion B1, the packaging of the OLED display panel is not easily damaged. For the OLED display panel, the packaging structure adjacent to the dividing line L2 can be better preserved, so that This can reduce the possibility of water, oxygen and other substances seeping into the OLED display panel from this area, and reduce the probability of the OLED display panel being damaged or affecting the display performance.

In an embodiment of the polarizer, no adhesive material is provided in the second adhesive area 222 . That is, as far as the entire polarizer 20 is concerned, a hollowing out process is performed in the second adhesive cloth area 222 (for the adhesive layer 21 ). In this embodiment, after the first partition B1 and the second partition B2 are divided, when the first partition B1 and the second partition B2 are separated, there is no adhesive force in the second glue area 222, which is different from the above embodiment. Similarly, it is also easier to separate the second subregion B2 from the first subregion B1, and reduce the damage to the packaging of the OLED display panel, thereby reducing the possibility of water, oxygen and other substances penetrating into the OLED display panel from the divided region Sex, reducing the chance of OLED display panels being damaged or affecting display performance.

In one embodiment of the polarizer, there are multiple second adhesive areas 222, and the plurality of second adhesive areas 222 are arranged at intervals along the dividing line L2 between the first subregion B1 and the second subregion B2. Between the two glued areas 222 is the first glued area 221 . In this embodiment, the first adhesive area 221 and the second adhesive area 222 are arranged at intervals along the dividing line L2, so that the adhesive layer 22 can be placed between the polarizer main body 21 and the OLED display panel in the extending direction of the dividing line L2. The adhesion between them is roughly uniform, so that the adhesion is not too large in some areas, and the adhesion is too small in other areas.

Specifically, each second adhesive area 222 is in the shape of a strip, which may extend from the edge of the polarizer 20 to a position beyond the dividing line L2 between the first subregion B1 and the second subregion B2. Under such circumstances, the second glue distribution area 222 is a simple geometric shape, and it will be simpler to arrange the second glue material (or no glue material) in the second glue distribution area 222, and correspondingly, in the first glue distribution area 222 It is also easier to arrange the first adhesive material in the area 221 . At the same time, it can also be simply and conveniently ensured that each second adhesive distribution area 222 straddles the dividing line L2 between the first subregion B1 and the second subregion B2.

In one embodiment of the manufacturing method of the OLED display module of the present invention, the manufacturing method of the OLED display module includes the following steps S1-S4.

Before step S1, as a pre-procedure step, an OLED display panel, a supporting film, and a polarizer are firstly provided. After that, steps such as step S1 are performed.

Step S1, attaching the supporting film 10 to the first side of the OLED display panel, the supporting film 10 adopts the supporting film described in the above-mentioned embodiments.

In step S1, the OLED display panel is in a state of 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 the hard glass substrate has been peeled off, and each light-emitting functional layer of the OLED display panel is formed on a flexible substrate. The packaging of the OLED display panel may specifically be thin film packaging and the like. Since the hard glass substrate is peeled off, the supporting performance of the OLED display panel is insufficient. Therefore, in this step S1, the supporting film 10 is attached to one side of the OLED display panel to enhance the supporting performance of the OLED display panel.

Specifically, in step S1, the first side of the OLED display panel can be its backside (non-light-emitting surface side), that is, the supporting film 10 can be attached to the backside (non-light-emitting surface side) of the OLED display panel. ).

Step S2, attaching the polarizer 20 to the second side of the OLED display panel; the polarizer 20 adopts the polarizer described in the above-mentioned embodiments.

In step S2, the second side of the OLED display panel may be its light-emitting surface side, that is, the polarizer 20 may specifically be attached to the light-emitting surface side of the OLED display panel. The polarizer 20 attached to the light-emitting surface of the OLED display panel can transmit light with a specific polarization direction among the light emitted from the light-emitting surface of the OLED display panel.

It should be noted that, for the above step S1 and step S2, the chronological order of execution may be that step S1 is executed first, and then step S2 is executed, but it is not limited thereto. In addition, step S2 may also be executed first, followed by Step S1.

Step S3, cutting the first partition and the second partition along the dividing line of the first partition and the second partition.

As described in the above embodiments, the first subregion A1 and the second subregion A2 on the support film 10 are consistent with the first subregion B1 and the second subregion B2 on the polarizer 20 . The first partition and the second partition described in step S3 are the first partition A1 and the second partition A2 on the support film 10 , that is, the first partition B1 and the second partition B2 on the polarizer 20 .

In step S3, the cutting of the first subregion and the second subregion may specifically adopt a laser cutting method.

It should be noted that if the second adhesive material arranged in the second adhesive area of the support film 10 and/or the polarizer 20 is a viscous-reducing adhesive, then in step S3, the first partition and the second partition are cut Previously, it was necessary to firstly irradiate the support film 10 and/or the second adhesive region of the polarizer 20 with UV light to reduce the adhesion of the second adhesive disposed on the second adhesive region.

Step S4, detaching the second partition from the first partition.

In step S4, since there is a second adhesive area at the cutting line where the first sub-region and the second sub-region meet, the adhesion of the second adhesive area is low, so that the support film in the second sub-region is 10. The overall adhesion between the polarizer 20 and the OLED display panel is reduced. When the second partition is peeled off from the first partition, the above-mentioned small adhesion helps to protect the packaging structure of the OLED display panel, Avoid the encapsulation structure of the OLED display panel from being destroyed in the cut and separated area, so that for the OLED display panel, external water, oxygen and other substances are not easy to enter the OLED display panel from this area, and the OLED display panel is not easy to be damaged by other substances. penetration and damage or affect display performance.

In an embodiment of the OLED display module of the present invention, the OLED display module is prepared according to the method for preparing the OLED display module described in the above embodiments.

In the embodiment of the present invention, the OLED display module is prepared according to the above-mentioned preparation method of the OLED display module, and of course has the same beneficial effect as the above-mentioned preparation method of the OLED display module. The encapsulation structure of the display module is not easy to be damaged, so that external water, oxygen and other substances are not easy to penetrate into the OLED display module, and the probability of the OLED display module being damaged or affecting the working performance is correspondingly reduced.

It should be noted that in this article, relative terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply these No such actual relationship or order exists between entities or operations. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements of or also include elements inherent in such a process, method, article, or device. Without further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article or apparatus comprising said element.

The above descriptions are only specific embodiments of the present invention, so that those skilled in the art can understand or implement the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Accordingly, the present invention will not be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims (10)

1. A support film, characterized in that, the support film comprises a support film main body and an adhesive layer formed on one side of the support film main body; The supporting film includes a first subregion and a second subregion to be divided; The adhesive layer includes a first glue area and a second glue area, the first glue area is provided with a first adhesive material, and the first glue area includes a first partition; The second adhesive area is provided with a second adhesive material or no adhesive material, and the second adhesive area straddles the connecting dividing line between the first subregion and the second subregion; The first glued region and the second glued region are configured such that, when the first subregion and the second subregion are divided, the adhesion of the second glued region is lower than that of the first glued region of adhesion. 2. The supporting film according to claim 1, characterized in that, the viscosity of the second adhesive material arranged in the second adhesive distribution area is less than the viscosity of the first adhesive material; or The second adhesive material arranged in the second adhesive distribution area is a viscose-reducing adhesive, and the second adhesive material is subjected to visco-reducing treatment before dividing the first subregion and the second subregion. 3. The support film according to claim 1, characterized in that, the number of the second glue-distributing regions is multiple, and a plurality of the second glue-distributing regions are divided along the division of the first subregion and the second subregion. The lines are arranged at intervals, and the first glue-laying area is between the adjacent second glue-laying areas. 4. The supporting film according to claim 3, characterized in that, the second glued area is strip-shaped. 5. A polarizer, characterized in that the polarizer comprises a polarizer body and an adhesive layer formed on one side of the polarizer body; The polarizer includes a first partition and a second partition to be divided; The adhesive layer includes a first glue area and a second glue area, the first glue area is provided with a first adhesive material, and the first glue area includes a first partition; The second adhesive area is provided with a second adhesive material or no adhesive material, and the second adhesive area straddles the connecting dividing line between the first subregion and the second subregion; The first glued region and the second glued region are configured such that, when the first subregion and the second subregion are divided, the adhesion of the second glued region is lower than that of the first glued region of adhesion. 6. The polarizer according to claim 5, wherein the viscosity of the second adhesive material arranged in the second adhesive area is lower than the viscosity of the first adhesive material; or The second adhesive material arranged in the second adhesive distribution area is a viscose-reducing adhesive, and the second adhesive material is subjected to visco-reducing treatment before dividing the first subregion and the second subregion. 7. The polarizer according to claim 5, wherein the number of the second adhesive areas is multiple, and the plurality of second adhesive areas are divided along the division of the first subregion and the second subregion. The lines are arranged at intervals, and the first glue-laying area is between the adjacent second glue-laying areas. 8 . The polarizer according to claim 7 , wherein the second adhesive area is strip-shaped. 9. A method for preparing an OLED display module, comprising: Provide OLED display panels, support films and polarizers; Attaching the support film to the first side of the OLED display panel, and attaching the polarizer to the second side of the OLED display panel; the support film adopts any one of claims 1-4. The support film described in item 1, the polarizer adopts the polarizer described in any one of claims 5 to 8; cutting the first partition and the second partition along a dividing line between the first partition and the second partition; The second partition is peeled off from the first partition. 10. An OLED display module, characterized in that the OLED display module is prepared according to the method for preparing an OLED display module according to claim 9.

Images