CN114815031A

CN114815031A - Polaroid and display module

Info

Publication number: CN114815031A
Application number: CN202210467582.9A
Authority: CN
Inventors: 武峰; 陈华山; 冯凯
Original assignee: Kunshan Govisionox Optoelectronics Co Ltd
Current assignee: Kunshan Govisionox Optoelectronics Co Ltd
Priority date: 2022-04-29
Filing date: 2022-04-29
Publication date: 2022-07-29
Anticipated expiration: 2042-04-29
Also published as: CN114815031B

Abstract

The application provides a polaroid and a display module, wherein the polaroid comprises a polaroid body and a protective layer, the polaroid body comprises a first surface and a second surface which are oppositely arranged along the thickness direction, and a side surface for connecting the first surface and the second surface, and at least part of the side surface is arranged in a way of deviating from the thickness direction of the polaroid; the protective layer covers at least a part of the side surface. The protective layer is used for preventing the polaroid from being scalded, thereby avoiding the polaroid from losing efficacy and ensuring the display effect of the display panel. Therefore, the polaroid and the display module can be prevented from being damaged in the binding process, and the display effect of the display module is ensured.

Description

Polaroid and display module

Technical Field

The application relates to the technical field of display panels, in particular to a polarizer and a display module.

Background

An Organic Light Emitting Diode (OLED) display panel has an increasingly wide application range due to its advantages of Light weight, self-luminescence, wide viewing angle, low driving signal, high Light Emitting efficiency, low power consumption, fast response speed, and the like.

In the related art, the display module may include a display panel and a polarizer, which are stacked, wherein a bonding region of the display panel is bonded to a flexible Circuit board, and the flexible Circuit board is electrically connected to a driving Circuit (IC for short), so as to implement signal transmission between the IC and the display panel.

However, the polarizer is easily damaged in the binding process, thereby affecting the display effect of the display module.

Disclosure of Invention

In view of the above at least one technical problem, the embodiment of the present application provides a polarizer and a display module, which can prevent the polarizer from being damaged in the binding process, thereby ensuring the display effect of the display module.

In order to achieve the above object, the embodiments of the present application provide the following technical solutions:

a first aspect of an embodiment of the present application provides a polarizer, where the polarizer includes a polarizer body and a protective layer, the polarizer body includes a first surface and a second surface that are arranged opposite to each other in a thickness direction, and a side surface that connects the first surface and the second surface, and at least a part of the side surface is arranged to deviate from the thickness direction of the polarizer; the protective layer covers at least a part of the side surface.

The polarizer provided by the embodiment of the application comprises a polarizer body and a protective layer, wherein the polarizer body comprises a first surface and a second surface which are oppositely arranged along the thickness direction, and a side surface for connecting the first surface and the second surface, and at least part of the side surface is arranged in a way of deviating from the thickness direction of the polarizer; the protective layer covers at least a part of the side surface. If the side surface to be provided with the protective layer is towards the binding region of the display panel, the protective layer can be used for preventing the polarizer from being scalded, so that the polarizer is prevented from being invalid, and the display effect of the display panel is ensured. Cover the protective layer through on the lateral wall in order to protect the polaroid body, need not to increase the distance between polaroid body and the conducting structure who binds in the district, can not influence the screen of display module and account for the ratio, be favorable to realizing narrow frame. In addition, at least part of the side surface is arranged in a way of deviating from the thickness direction of the polaroid, namely, the extending direction of the side surface is not vertical to the plane of the polaroid body, and the side surface is arranged in an inclined way, so that the area of the side surface can be increased, more protective layers can be covered on the side surface, and the scald prevention effect of the protective layers is improved.

In one possible implementation, the side surface includes a first side surface and a second side surface that meet in a circumferential direction of the polarizer;

the protective layer comprises a first protective layer, and the first protective layer covers the surface of the first side; the first protective layer comprises a thermal insulation glue layer and/or a heat absorption glue layer.

Therefore, the first protective layer can prevent the polaroid body from being scalded and can also prevent the influence of water oxygen on the polaroid.

In a possible implementation manner, the protection layer includes a second protection layer, and the second protection layer covers the second side surface; the second protective layer comprises a hot melt adhesive layer.

Therefore, the second protective layer can improve the strength of the display panel and can also prevent the influence of water and oxygen on the polaroid.

In one possible implementation manner, the first side surface includes a first inclined surface, the first inclined surface has a first edge close to the first surface, the first inclined surface extends from the first edge to the outside and inclines towards the second surface, and the first inclined surface and the first surface form a first included angle;

it can be realized that the first angle is in the range of 60 ° -75 °;

it is realized that the second side surface comprises a third slope having a third edge near the first surface, the third slope extending obliquely from the third edge and towards the second surface, the third slope forming a third angle with the first surface.

Therefore, the first inclined plane can increase the area of the first side surface, so that the polarizer can be better protected.

In a possible implementation manner, the first side surface further includes a second inclined surface, the second inclined surface has a second edge close to the second surface, the second inclined surface extends from the second edge to the outside and inclines towards the first surface, and the second inclined surface and the second surface form a second included angle;

it can be realized that the second angle is in the range of 15 ° -30 °;

it is realized that the second side surface comprises a fourth bevel having a fourth edge adjacent to the second surface, the fourth bevel extending obliquely from the fourth edge and towards the first surface, the fourth bevel forming a fourth angle with the second surface.

Thus, the second inclined plane can increase the area of the first side surface, thereby better protecting the polarizer.

In one possible implementation manner, the first inclined surface and the second inclined surface are arranged in a connection mode along the thickness direction;

it is achieved that the sum of the first angle and the second angle is 90 °.

Therefore, the area of the first side surface is larger due to the first inclined surface and the second inclined surface, and the polaroid can be well protected.

In one possible implementation manner, the polarizer body includes a first film layer, a polarizing film layer and a second film layer which are sequentially stacked, the first film layer is located on one side of the polarizing film layer close to the first surface, and the second film layer is located on one side of the polarizing film layer close to the second surface;

the connection position of the first inclined plane and the second inclined plane is positioned on the polarizing film layer or the second film layer.

Therefore, the protection effect on the polarizing film layer is better.

In one possible implementation, the side surface deviating from the thickness direction of the polarizer includes at least one of a wavy surface and a serrated surface.

Thus, the side surfaces are arranged in a plurality of ways, and the device can be applied to a plurality of scenes.

A second aspect of an embodiment of the present application provides a display module, including the polarizer in the first aspect.

The display module assembly that this application embodiment provided, the display module assembly includes the polaroid, the polaroid includes polaroid body and protective layer, the polaroid body includes first surface and second surface, side surface connecting first surface and second surface that set up relatively along the thickness direction, at least some side surfaces deviate the thickness direction setting of the polaroid; the protective layer covers at least a part of the side surface. If the side surface to be provided with the protective layer is towards the binding region of the display panel, the protective layer can be used for preventing the polarizer from being scalded, so that the polarizer is prevented from being invalid, and the display effect of the display panel is ensured. Cover the protective layer through on the lateral wall in order to protect the polaroid body, need not to increase the distance between polaroid body and the conducting structure who binds in the district, can not influence the screen of display module and account for the ratio, be favorable to realizing narrow frame. In addition, at least part of the side surface is arranged in a way of deviating from the thickness direction of the polaroid, namely, the extending direction of the side surface is not vertical to the plane of the polaroid body, and the side surface is arranged in an inclined way, so that the area of the side surface can be increased, more protective layers can be covered on the side surface, and the scald prevention effect of the protective layers is improved.

In one possible implementation mode, the display panel is provided, and the polarizer is positioned on the light emergent side of the display panel; the display panel comprises a binding area, and the first side surface of the polaroid is close to the binding area.

Thus, the polarizer can be reduced or prevented from being burned.

The construction of the present application and other objects and advantages thereof will be more apparent from the following description of the preferred embodiments taken in conjunction with the accompanying drawings.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a top view of a display module according to an embodiment of the present disclosure;

fig. 2 is a top view of a display panel provided in an embodiment of the present application;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 4 is a schematic structural diagram illustrating a first protective layer being melted according to an embodiment of the present disclosure;

FIG. 5 is a cross-sectional view of a polarizer body according to an embodiment of the present disclosure;

FIG. 6 is a sectional view taken along line B-B of FIG. 1;

fig. 7 is a schematic structural diagram illustrating a second protective layer being melted according to an embodiment of the present application;

FIG. 8 is a partial top view of a polarizer body according to an embodiment of the present disclosure;

FIG. 9 is another partial top view of a polarizer body according to an embodiment of the present disclosure;

FIG. 10 is a cross-sectional view of a first bevel and a second bevel provided by an embodiment of the present application;

fig. 11 is another cross-sectional view of a first bevel and a second bevel provided in an embodiment of the present application.

Description of reference numerals:

100-a display module; 101-a display panel;

101 a-display area; 101 b-non-display area;

102-a polarizer; 103-a polarizer body;

a 110-side surface; 111-a first side surface;

112-a second side surface; 120-a protective layer;

121-a first protective layer; 122-a second protective layer;

131-a first bevel; 132-a second bevel;

141-a first edge; 142-a second edge;

150-a first film layer; 151-first TAC film layer;

152-a compensation film layer; 153-a first PSA film layer;

154-a second PSA film layer; 155-a release film layer;

160-a second film layer; 161-second TAC film layer;

162-a protective film layer; 170-a polarizing film layer;

181-a conductive structure; 191-a first surface;

192-second surface.

Detailed Description

In the related art, the non-display area of the display panel includes a binding area, and the binding area is used for binding the IC. Wherein, be provided with conductive structure on the display panel of binding the district, IC connects on Flexible Circuit board (FPC), is provided with the conducting resin between FPC and the conductive structure, and FPC and conductive structure pass through the conducting resin and bind and be connected to realize the signal transmission between IC and the display panel.

In the binding process, the high-temperature binding welding head needs to be abutted against one side of the FPC, which is far away from the display panel, so that the conductive adhesive between the FPC and the conductive structure is melted, and the FPC and the conductive structure are stably bound and connected.

However, the temperature of the bonding head is high, so that the polarizer close to the bonding area is easily scalded, thereby causing failure of the polarizer and affecting the display effect of the display module. The distance between the conductive structure and the polaroid can be increased, so that the distance between the bonding head and the polaroid is increased, and the influence of high temperature in the bonding process on the polaroid is reduced. However, when the distance between the conductive structure and the polarizer is large, the area of the non-display area is large, the narrow frame is not easy to realize, and the screen occupation ratio of the display module can be influenced.

Based on at least one technical problem, an embodiment of the present application provides a polarizer and a display module, where the polarizer includes a polarizer body and a protective layer, the polarizer body includes a first surface and a second surface that are opposite to each other in a thickness direction, and a side surface that connects the first surface and the second surface, and at least a part of the side surface is offset from the thickness direction of the polarizer; the protective layer covers at least a part of the side surface. If the side surface to be provided with the protective layer is towards the binding region of the display panel, the protective layer can be used for preventing the polarizer from being scalded, so that the polarizer is prevented from being invalid, and the display effect of the display panel is ensured. Cover the protective layer through on the lateral wall in order to protect the polaroid body, need not to increase the distance between polaroid body and the conducting structure who binds in the district, can not influence the screen of display module and account for the ratio, be favorable to realizing narrow frame. In addition, at least part of the side surface is arranged in a way of deviating from the thickness direction of the polaroid, namely, the extending direction of the side surface is not vertical to the plane of the polaroid body, and the side surface is arranged in an inclined way, so that the area of the side surface can be increased, more protective layers can be covered on the side surface, and the scald prevention effect of the protective layers is improved.

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, 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, and it is obvious that the described embodiments are some embodiments of the present application, but 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.

The display module 100 provided in the embodiments of the present application will be described with reference to fig. 1 to 11.

This embodiment provides a display module assembly 100, and this display module assembly 100 can be applied to display device, like electronic paper, cell-phone, panel computer, TV set, display, notebook computer, digital photo frame, intelligent bracelet, intelligent wrist-watch, super personal computer, navigator etc. have the removal or the fixed terminal of display module assembly 100.

As shown in fig. 1, the Display module 100 may include a Display panel 101, and the Display panel 101 may be an Organic Light-Emitting Diode (OLED) Display panel, a Micro Light-Emitting Diode (Micro LED or μ LED) Display panel, or a Liquid Crystal Display (LCD) Display panel.

The display panel 101 may include a light emitting surface and a backlight surface that are oppositely disposed. The light-emitting surface is used for displaying a picture, and the backlight surface is an opposite surface to the light-emitting surface along the thickness direction of the display panel 101.

As shown in fig. 2, the display panel 101 may include a display region 101a and a non-display region 101b, the display region 101a and the non-display region 101b being adjacently disposed. For example, the non-display area 101b may surround the outer circumference of the display area 101 a. The non-display area 101b includes a bonding area, and a conductive structure 181 (fig. 3 and 4) is disposed on the display panel 101 of the bonding area, and the conductive structure 181 is used for bonding connection with an IC.

As shown in fig. 1, the display module 100 may include a polarizer 102, the polarizer 102 may completely cover the display region 101a of the display panel 101, and a portion of the polarizer 102 may extend into the non-display region 101 b. The polarizer 102 may cover a light emitting surface side of the display panel 101.

The structure of the polarizer 102 provided in the embodiments of the present application is explained below.

As shown in fig. 1, the polarizer 102 includes a polarizer body 103 and a protection layer 120, the polarizer body 103 is a main portion of the polarizer 102, and the protection layer 120 is used for protecting the polarizer body 103, so as to prevent the polarizer body 103 from being scalded and losing efficacy, and ensure the display effect of the display module 100.

The following describes the film layers in the polarizer body 103 according to the embodiment of the present disclosure.

As shown in fig. 5, the polarizer body 103 may include a first film 150, a polarizing film 170, and a second film 160 sequentially stacked, where the first film 150 is located on a side of the polarizing film 170 close to the display panel 101, and the second film 160 is located on a side of the polarizing film 170 away from the display panel 101.

The polarizing film layer 170 may be polyvinyl alcohol (PVA), which has the characteristics of high transparency, high ductility, good iodine adsorption effect, good film forming property, and the like, and the material absorbs two-way absorption molecules of iodine and then is subjected to extension and alignment to play a role in polarization, and is a core part of the polarizer body 103, thereby affecting key optical indexes such as polarization performance, transmittance, hue, and the like of the polarizer 102.

As shown in fig. 5, the first film 150 may include a Triacetyl Cellulose (TAC) film, which may be a first TAC film 151, and the first TAC film 151 is located on a side of the polarizing film 170 facing the display panel 101. The first TAC film layer 151 has excellent support and optical uniformity, high transparency, acid and alkali resistance, and ultraviolet irradiation, and can protect the polarizing film layer 170 from retraction and improve the environmental weatherability of the polarizing film layer 170.

The first film layer 150 may include a compensation film layer 152 with a wavelength of 1/4, and the compensation film layer 152 is combined with the polarization film layer 170 to better prevent the reflected light from affecting the display effect of the display module 100. The compensation film layer 152 is located on a side of the first TAC film layer 151 facing away from the polarizing film layer 170.

The compensation film 152 and the first TAC film 151 may be bonded by a Pressure Sensitive Adhesive (PSA) film, which may be the first PSA film 153. One side of the compensation film 152 facing away from the polarizing film 170 is provided with a second PSA film 154, and the second PSA film 154 is used to adhere the polarizer body 103 to the display panel 101. The release film layer 155 may be disposed on a side of the second PSA film layer 154 away from the polarizing film layer 170, and the release film layer 155 is used to protect the second PSA film layer 154 from being damaged before bonding, and may also prevent bubbles from being generated when the second PSA film layer 154 is attached to the display panel 101.

It is understood that the first film layer 150 may include any one or more of the first TAC film layer 151, the compensation film layer 152, the first PSA film layer 153, the second PSA film layer 154, and the release film layer 155 described above.

As shown in fig. 5, the second film layer 160 may include a second TAC film layer 161, the second TAC film layer 161 is located on a side of the polarizing film layer 170 away from the first film layer 150, and the second TAC film layer 161 is used to support and protect the polarizing film layer 170, and the principle thereof is similar to that of the first TAC film layer 151, and is not described again.

The second film 160 may include a protection film 162, the protection film 162 is located on a side of the second TAC film 161 away from the polarizer film 170, and the protection film 162 protects the polarizer body 103 to prevent the polarizer body 103 from being damaged by external force.

It is understood that the second film layer 160 may include any one or more of the second TAC film layer 161 and the shield film layer 162 described above.

As shown in fig. 5, the polarizer body 103 includes a first surface 191 and a second surface 192 opposite to each other in a thickness direction, where the first surface 191 may be a surface of the polarizer body 103 facing the display panel 101, and the second surface 192 may be a surface of the polarizer body 103 facing away from the display panel 101.

As shown in fig. 1, a side surface 110 is disposed between the first surface 191 and the second surface 192, and the side surface 110 is used to connect the first surface 191 and the second surface 192. As shown in fig. 1, the side surface 110 may cover a protective layer 120, and the protective layer 120 is used for protecting the polarizer body 103.

The side surface 110 and the protective layer 120 provided in the embodiment of the present application are explained below.

As shown in fig. 1, the side surface 110 includes a first side surface 111 near the binding region, the remaining side surfaces 110 except the first side surface 111 may be second side surfaces 112, and the second side surfaces 112 may be side surfaces 110 far from the binding region. The first side surface 111 and the second side surface 112 may be disposed along a circumference of the polarizer body 103, and the first side surface 111 and the second side surface 112 are connected.

For example, the orthographic projection of the polarizer body 103 on the display panel 101 may be substantially circular, polygonal (e.g., rectangular), elliptical, other regular or irregular shapes, and the shape of the polarizer body 103 is not limited in this embodiment. For example, as shown in fig. 1, the orthographic projection of the polarizer body 103 on the display panel 101 may be rectangular.

As shown in fig. 3 and 4, the first side surface 111 may be covered with a protection layer 120, and the protection layer 120 may be a first protection layer 121, where the first protection layer 121 is used to prevent a bonding head from burning the polarizer body 103. The first protective layer 121 may cover a portion of the first side surface 111 or the entire first side surface 111. The first protection layer 121 may be used to prevent the polarizer body 103 from being scalded, so as to prevent the polarizer 102 from being invalid and ensure the display effect of the display panel 101. Prevent that polarizer body 103 from scalding through covering first protective layer 121 on first side surface 111, need not to increase the distance between polarizer body 103 and the conducting structure 181, can not influence the screen of display module assembly 100 and account for the ratio, be favorable to realizing narrow frame.

The first protective layer 121 may include at least one of a thermal insulation adhesive layer and a heat absorption adhesive layer. The first protection layer 121 may include a heat absorption adhesive layer, which is at least partially melted during a high temperature binding process, and the heat absorption adhesive layer takes away heat during the melting process to prevent the polarizer body 103 from being affected by high temperature. The first protective layer 121 may include a thermal insulation layer for isolating high temperature, thereby preventing the high temperature from affecting the polarizer body 103. For example, the material of the heat-absorbing adhesive layer may include silicone, polyacrylate, and the like; the material of the thermal insulation glue layer may include a thermal insulation resin.

As shown in fig. 6 and 7, the second side surface 112 may be covered with a protective layer 120, the protective layer 120 may be a second protective layer 122, and the second protective layer 122 may cover a part of the second side surface 112 or the entire second side surface 112. For example, the second protection layer 122 may include a hot melt adhesive layer, the hot melt adhesive layer is melted in a subsequent process (e.g., a full-lamination defoaming process, at a temperature ranging from 50 ℃ to 70 ℃), and the melted hot melt adhesive layer may enter cracks generated by cutting of the side edge of the display panel 101 to fill the cracks of the side edge of the display panel 101, increase the strength of the side edge of the display panel 101, and protect the display panel 101.

As shown in FIGS. 8-11, at least a portion of the side surface 110 of the polarizer body 103 is disposed offset from the thickness direction of the polarizer 102. The deviation from the thickness direction of the polarizer 102 means that the extending direction of the side surface 110 is not perpendicular to the plane of the polarizer body 103, and the side surface 110 is disposed obliquely. Part of the side surface 110 or all of the side surface 110 of the polarizer body 103 may be disposed offset from the thickness direction of the polarizer 102. The side surface 110 may be disposed offset from the thickness direction of the polarizer 102 to increase the area of the side surface 110, and thus the contact area between the protective layer 120 and the side surface 110 may be increased; in addition, the side surface 110 can be covered with more protection layers 120, and the protection effect of the protection layers 120 is better. For example, the first side surface 111 may be partially or entirely disposed offset from the thickness direction of the polarizer 102. The second side surface 112 may be disposed partially or entirely offset from the thickness direction of the polarizer 102.

The following describes an implementation of the side surface 110 disposed offset from the thickness direction of the polarizer 102 according to an embodiment of the present disclosure.

As shown in fig. 8 and 9, the side surface 110 disposed in a direction deviated from the thickness direction of the polarizer 102 may be uneven, so that the area of the side surface 110 may be further increased, and more protective layers 120 may be attached to better protect the polarizer 102. For example, the side surface 110 disposed to be deviated from the thickness direction of the polarizer 102 may be any one or more of a wavy surface (fig. 9), a serrated surface (fig. 8). Of course, the side surface 110 disposed away from the thickness direction of the polarizer 102 may also be a plane, which is relatively simple in structure and relatively difficult to manufacture.

As shown in fig. 10, the first side surface 111 may include a first slope 131, the first slope 131 having a first edge 141 adjacent to the first surface 191, the first slope 131 extending obliquely outward from the first edge 141 and toward the second surface 192, the first slope 131 forming a first included angle α with the first surface 191, the first included angle α being less than 90 °.

Illustratively, the first edge 141 of the first slope 131 and the first surface 191 may be spaced apart in the thickness direction, or the first edge 141 of the first slope 131 may be located on the first surface 191; that is, the distance between the first edge 141 and the first surface 191 in the thickness direction is equal to or greater than 0. The other edge of the first slope 131, which is far from the first edge 141, and the second surface 192 may be spaced apart in the thickness direction, or the other edge of the first slope 131, which is far from the first edge 141, may be located on the second surface 192; i.e., the distance of the edge from the second surface 192 in the thickness direction is equal to or greater than 0.

With continued reference to fig. 10, the first side surface 111 further includes a second inclined surface 132, the second inclined surface 132 has a second edge 142 adjacent to the second surface 192, the second inclined surface 132 extends obliquely from the second edge 142 and toward the first surface 191, the second inclined surface 132 forms a second included angle β with the second surface 192, and the second included angle β is smaller than 90 °.

For example, the second edge 142 of the second inclined surface 132 and the second surface 192 may be spaced apart in the thickness direction, or the second edge 142 of the second inclined surface 132 may be located on the second surface 192; that is, the distance between the second edge 142 and the second surface 192 in the thickness direction is greater than or equal to 0. The other edge of the second inclined surface 132 away from the second edge 142 and the first surface 191 may be spaced apart in the thickness direction, or the other edge of the second inclined surface 132 away from the second edge 142 may be located on the first surface 191; that is, the distance in the thickness direction of the edge from the first surface 191 is 0 or more.

Due to the arrangement of the first inclined surface 131 and the second inclined surface 132, the first edge 141 of the first inclined surface 131 and the second edge 142 of the second inclined surface 132 are farther from the bonding head, and the influence of the bonding head on the polarizer body 103 at the farther portion from the bonding head can be reduced.

In other embodiments, as shown in FIG. 11, the first inclined surface 131 extends inwardly from the first edge 141 and obliquely toward the second surface 192, and the second inclined surface 132 extends inwardly from the second edge 142 and obliquely toward the first surface 191. At this time, a concave region is formed on the side surface 110 of the polarizer body 103, at least a portion of the protection layer 120 is embedded into the concave region, and the concave region supports the protection layer 120, so that overflow of the protection layer 120 caused by gravity in the melting process can be reduced, the protection layer 120 can be better attached to the side surface 110, separation of the protection layer 120 from the side surface 110 due to too fast overflow speed is avoided, and influence of external water and oxygen on the polarizer body 103 is prevented. The embodiment of the present application is described by taking an example that the first slope 131 extends from the first edge 141 to the outside and slantingly toward the second surface 192.

As shown in fig. 10 and 11, the orthographic projection of the first inclined plane 131 on the display panel 101 and the orthographic projection of the second inclined plane 132 on the display panel 101 are at least partially overlapped, so that the total area of the first inclined plane 131 and the second inclined plane 132 occupying the plane where the display panel 101 is located is smaller, the influence of the first inclined plane 131 and the second inclined plane 132 on the width of the bezel can be reduced, and the narrow bezel is favorably realized.

It is understood that the first inclined surface 131 and the second inclined surface 132 may be disposed in a thickness direction; alternatively, another edge of the first inclined surface 131, which is far from the first edge 141, may have a distance from another edge of the second inclined surface 132, which is far from the second edge 142, and the first inclined surface 131 and the second inclined surface 132 may have a distance in the thickness direction.

The present application will be described by taking as an example that the first inclined surface 131 and the second inclined surface 132 may be disposed in contact with each other in the thickness direction.

As shown in fig. 10, the first inclined surface 131 is connected to the second inclined surface 132, and an included angle (a sum of α and β in fig. 10) between the first inclined surface 131 and the second inclined surface 132 may be 90 °.

The first inclined surface 131 and the first surface 191 form a first included angle α, the second inclined surface 132 and the second surface 192 form a second included angle β, and the first included angle α may be greater than the second included angle β. The first included angle α is larger, and the area of the first inclined surface 131 is smaller. Since the first inclined surface 131 is close to the display panel 101 and the display panel 101 is in contact with the bonding head, the temperature of the display panel 101 in the bonding region is high, so that the first inclined surface 131 is affected by heat of both the display panel 101 and the bonding head. The first included angle α is set to be larger, so that the area of the first inclined surface 131 can be reduced, and thus the area of the structural film layer exposed in a high-temperature environment is reduced, and the influence on the structural film layer exposed by the first inclined surface 131 is reduced.

Illustratively, the first included angle α may range from 60 ° to 75 °, and the first included angle α may be any angle between 60 °, 65 °, 70 °, 75 °, and 60 ° to 75 °. Therefore, the first included angle alpha is prevented from being too small, and the exposed structural film layer is prevented from being too large in area; and the phenomenon that the distance between the whole first inclined surface 131 and the bonding tool is too short due to the overlarge first included angle alpha can be avoided, so that the influence of high temperature on the polarizer body 103 at the first inclined surface 131 can be reduced.

With reference to fig. 10, the second inclined surface 132 supports the protection layer 120, and when the second included angle β is smaller, the protection layer 120 is better prevented from separating from the second inclined surface 132 during the melting process.

For example, the second included angle β may range from 15 ° to 30 °, and the second included angle β may be any angle between 15 °, 20 °, 25 °, 30 ° and 15 ° to 30 °, so that it can be avoided that the second included angle β is too small, which causes the second inclined surface 132 to affect the polarizer body 103 in the display area 101a, and also can be avoided that the second included angle β is too large, which affects the supporting effect of the second inclined surface 132 on the protection layer 120.

Illustratively, the joint position of the first inclined plane 131 and the second inclined plane 132 is located in the second film layer 160, so that the polarizing film layer 170 can be exposed through the first inclined plane 131, the area of the exposed polarizing film layer 170 is small, the polarizing film layer 170 is less affected by high temperature, and in addition, the probability that the polarizing film layer 170 is corroded by water and oxygen is small.

For example, as shown in fig. 3, the connection position of the first inclined plane 131 and the second inclined plane 132 may be located in the polarizing film layer 170, and compared with the connection position of the first inclined plane 131 and the second inclined plane 132 being located in the second film layer 160, the connection position being located in the polarizing film layer 170 may increase the thickness of the film layer through which the second inclined plane 132 passes, thereby avoiding the increase of difficulty in manufacturing due to the too small thickness of the film layer through which the second inclined plane 132 passes. For example, along the thickness direction of the polarizer body 103, the polarizing film layer 170 includes a first portion and a second portion, the first portion and the second portion are respectively located at two opposite sides of the connection position, the first portion is close to the first surface 191, and the second portion is close to the second surface 192. The first inclined surface 131 is located at the first portion, and the second inclined surface 132 is located at the second portion. Since the first inclined surface 131 is smaller in area of the film layer exposed than the second inclined surface 132, the thickness of the first portion may be set to be greater than that of the second portion, thereby reducing the exposed area of the polarizing film layer 170 to reduce the influence of high temperature on the polarizing film layer 170.

In other embodiments, the second side surface 112 may include a third inclined surface, the third inclined surface has a third edge close to the first surface 191, the third inclined surface extends from the third edge and obliquely toward the second surface 192, and the third inclined surface forms a third included angle with the first surface 191, which is similar to the first inclined surface 131 and will not be described again.

The second side surface 112 may include a fourth inclined surface having a fourth edge close to the second surface 192, the fourth inclined surface extends from the fourth edge and inclines towards the first surface 191, and the fourth inclined surface and the second surface 192 form a fourth included angle, which is similar to the second inclined surface 132 in principle and will not be described again.

In embodiments where the first inclined surface 131, the second inclined surface 132, the third inclined surface, and the fourth inclined surface are provided at the same time, the first included angle and the third included angle may be the same or different; the second angle and the fourth angle may be the same or different; the first and third

inclined surfaces

131 and 131 may be the same or different; the second ramp 132 and the fourth ramp may be the same or different.

It should be noted that the numerical values and numerical ranges related to the embodiments of the present application are approximate values, and there may be a range of errors due to the manufacturing process, and such errors may be considered as negligible by those skilled in the art.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.

Claims

1. The polaroid is characterized by comprising a polaroid body and a protective layer, wherein the polaroid body comprises a first surface and a second surface which are oppositely arranged along the thickness direction, and a side surface for connecting the first surface and the second surface, and at least part of the side surface is arranged in a way of deviating from the thickness direction of the polaroid; the protective layer covers at least a portion of the side surface.

2. The polarizer of claim 1 wherein the side surfaces comprise a first side surface and a second side surface that meet in a circumferential direction of the polarizer;

3. The polarizer of claim 2, wherein the protective layer comprises a second protective layer covering the second side surface; the second protective layer comprises a hot melt adhesive layer.

4. The polarizer of claim 2 or 3, wherein the first side surface comprises a first bevel having a first edge adjacent to the first surface, the first bevel extending obliquely outward from the first edge and toward the second surface, the first bevel forming a first angle with the first surface;

preferably, the first included angle is in the range of 60 ° to 75 °;

preferably, the second side surface includes a third slope having a third edge adjacent to the first surface, the third slope extending obliquely outward from the third edge and toward the second surface.

5. The polarizer of claim 4, wherein the first side surface further comprises a second bevel having a second edge adjacent to the second surface, the second bevel extending obliquely outward from the second edge and toward the first surface, the second bevel forming a second angle with the second surface;

preferably, the second included angle is in the range of 15 ° -30 °;

preferably, the second side surface includes a fourth slope having a fourth edge adjacent to the second surface, the fourth slope extending from the fourth edge outwardly and obliquely toward the first surface.

6. The polarizer of claim 5, wherein the first inclined surface and the second inclined surface are arranged in contact in a thickness direction;

preferably, the sum of the first included angle and the second included angle is 90 °.

7. The polarizer of claim 6, wherein the polarizer body comprises a first film layer, a polarizing film layer and a second film layer, which are sequentially stacked, wherein the first film layer is located on one side of the polarizing film layer close to the first surface, and the second film layer is located on one side of the polarizing film layer close to the second surface;

the connection position of the first inclined plane and the second inclined plane is located on the polarizing film layer or the second film layer.

8. The polarizer according to any of claims 1 to 3, wherein the side surface deviating from the thickness direction of the polarizer comprises at least one of a wavy surface and a serrated surface.

9. A display module comprising the polarizer of any of claims 1 to 8.

10. The display module according to claim 9, comprising a display panel, wherein the polarizer is located on a light-emitting side of the display panel;

the display panel comprises a binding area, and the first side surface of the polaroid is close to the binding area.