Display module and method for manufacturing the same

Abstract

This application relates to a display module and a method for manufacturing a display module. The display module includes: a display panel including a first side surface; a first film disposed on the display panel and including a second side surface; a second film disposed below the display panel and including a third side surface; a first adhesive layer disposed between the display panel and the first film; and a second adhesive layer disposed between the display panel and the second film, wherein, in a plan view, the first side surface of the display panel overlaps with the first film and the second film, and at least a portion of the second side surface and at least a portion of the third side surface protrude beyond the first side surface.

Description

[0001] Cross-reference of related applications

[0002] This U.S. non-provisional patent application claims priority and benefit to Korean Patent Application No. 10-2021-0018955, filed on February 10, 2021, with the Korean Intellectual Property Office (KIPO), the entire contents of which are incorporated herein by reference. Technical Field

[0003] This disclosure relates herein to a display module and a method for manufacturing the display module, and more particularly, to a display module having improved product reliability and a method for manufacturing the display module to provide the display module. Background Technology

[0004] The display device may include a display module. The display module may be configured to be cut from a preliminary display module separated from the mother substrate. A laser may be used to cut the preliminary display module. Summary of the Invention

[0005] This disclosure provides a display module with improved product reliability.

[0006] This disclosure also provides a method for manufacturing a display module to achieve a display module with improved product reliability.

[0007] Embodiments of this disclosure provide a display module, comprising: a display panel including a first side surface; a first film disposed on the display panel and including a second side surface; a second film disposed below the display panel and including a third side surface; a first adhesive layer disposed between the display panel and the first film; and a second adhesive layer disposed between the display panel and the second film. In a plan view, the first side surface of the display panel overlaps with the first and second films, and at least a portion of the second side surface and at least a portion of the third side surface may protrude beyond the first side surface.

[0008] In one embodiment, the first side surface of the display panel, the second side surface of the first film, and the third side surface of the second film can be parallel to each other in the thickness direction of the display panel.

[0009] In one embodiment, the side surfaces of the first adhesive layer and the second adhesive layer may have a shape that is inclined relative to the thickness direction of the display panel.

[0010] In one embodiment, the second side surface of the first film and the side surface of the first adhesive layer can be connected to each other to have a continuous shape, and the third side surface of the second film and the side surface of the second adhesive layer can be connected to each other to have a continuous shape.

[0011] In an implementation, in a plan view, the maximum width between the first side surface of the display panel and the second side surface of the first film can be at least about 1 / 4 times the thickness of the display panel.

[0012] In an implementation, in a plan view, the entire side surface of the display panel may overlap with the first and second films.

[0013] In an implementation, in a plan view, a portion of the side surface of the display panel may overlap with the first film and the second film, and in a plan view, another portion of the side surface of the display panel may be aligned with a portion of the side surface of the first film and a portion of the side surface of the second film.

[0014] In an embodiment, the inclination of the second side surface of the first film relative to the first side surface of the display panel can be constant, and the inclination of the third side surface of the second film relative to the first side surface of the display panel can be constant.

[0015] In one embodiment, the inclination of the second side surface of the first film relative to the first side surface of the display panel varies depending on the position in the second side surface, and the inclination of the third side surface of the second film relative to the first side surface of the display panel varies depending on the position in the third side surface.

[0016] Embodiments of this disclosure provide a method for manufacturing a display module, comprising: preparing a preliminary display module including a first protective film, a first film, a display panel, a second film, and a second protective film stacked sequentially; forming a first preliminary side surface on the preliminary display module; forming a second preliminary side surface on the preliminary display module; and forming the display module by removing the first and second protective films. In a plan view, at least a portion of the first film and at least a portion of the second film protrude beyond the display panel.

[0017] In one embodiment, forming the first preliminary side surface may include setting the preliminary display module at a temperature different from room temperature; irradiating the preliminary display module with a laser beam; and cutting the preliminary display module to form the first preliminary side surface.

[0018] In one embodiment, forming the second preliminary side surface may include: setting a preliminary display module after forming the first preliminary side surface; and deforming the shape of the first preliminary side surface to form the second preliminary side surface.

[0019] In one embodiment, forming the first preliminary side surface may include: irradiating the preliminary display module with a first laser beam in a direction inclined relative to the thickness direction of the preliminary display module and in a direction from the first protective film toward the display panel; and cutting a portion of the preliminary display module in the thickness direction of the preliminary display module to form the first preliminary side surface.

[0020] In one embodiment, forming the second preliminary side surface may include: irradiating the preliminary display module with a second laser beam in a direction inclined relative to the thickness direction of the preliminary display module and in a direction from the second protective film toward the display panel; and cutting a portion of the preliminary display module in the thickness direction of the preliminary display module to form the second preliminary side surface.

[0021] In an embodiment, forming the first preliminary side surface and forming the second preliminary side surface may each include irradiating the preliminary display module with a laser beam in the thickness direction of the preliminary display module to form the first preliminary side surface and the second preliminary side surface.

[0022] In an embodiment, at least one of the first protective film and the first film may include a material that defocuses the laser beam, and at least one of the second film and the second protective film may include a material that focuses the laser beam.

[0023] Embodiments of this disclosure provide a display module comprising: a display panel including a first side surface; a first film disposed on the display panel and including a second side surface; and a second film disposed below the display panel and including a third side surface. At least one of the second side surface of the first film and the third side surface of the second film may protrude a greater protrusion width than the first side surface of the display panel, and the protrusion width may be about 1 / 4 to about 3 times the thickness of the display panel.

[0024] In an embodiment, the display module may further include: a first adhesive layer disposed between the display panel and the first film; and a second adhesive layer disposed between the display panel and the second film. The first side surface of the display panel, the second side surface of the first film, and the third side surface of the second film may be parallel to each other in the thickness direction of the display panel, and the side surfaces of the first adhesive layer and the second adhesive layer may each have a shape inclined relative to the thickness direction of the display panel.

[0025] In an implementation, in a plan view, the entire side surface of the display panel may overlap with both the first and second films.

[0026] In an implementation, in a plan view, a portion of the side surface of the display panel may overlap with the first film and the second film, and in a plan view, another portion of the side surface of the display panel may be aligned with a portion of the side surface of the first film and a portion of the side surface of the second film. Attached Figure Description

[0027] The accompanying drawings are included to provide a further understanding of this disclosure, and are incorporated in and constitute a part of this specification. The drawings illustrate embodiments of the present disclosure and, together with the description, serve to explain the principles of the disclosure. In the drawings:

[0028] Figure 1 This is a schematic plan view of a display module according to an embodiment of the present disclosure;

[0029] Figure 2 It is according to the embodiments of this disclosure. Figure 1 The schematic cross-sectional view shown is taken by line I-I'.

[0030] Figure 3 It is according to the embodiments of this disclosure. Figure 1 The schematic cross-sectional view shown is taken by line I-I'.

[0031] Figure 4 It is according to the embodiments of this disclosure. Figure 1 The schematic cross-sectional view shown is taken by line I-I'.

[0032] Figure 5A It is according to the embodiments of this disclosure. Figure 1 The schematic cross-sectional view shown is taken by line I-I'.

[0033] Figure 5B It is according to the embodiments of this disclosure. Figure 1 The schematic cross-sectional view shown is taken by line I-I'.

[0034] Figures 6A to 6C This is a schematic diagram illustrating the testing of the display module;

[0035] Figure 7A and Figure 7B This is a schematic diagram illustrating the testing of the display module;

[0036] Figure 8 This is a schematic plan view of a display module according to an embodiment of the present disclosure;

[0037] Figure 9 It is according to the embodiments of this disclosure. Figure 8 A schematic cross-sectional view taken by line II-II' shown;

[0038] Figure 10 This is a schematic plan view of a preliminary display module according to an embodiment of the present disclosure;

[0039] Figures 11A to 11C This is a schematic diagram illustrating a method for manufacturing a display module according to an embodiment of the present disclosure;

[0040] Figure 12A and Figure 12B This is a schematic diagram illustrating a method for manufacturing a display module according to an embodiment of the present disclosure; and

[0041] Figure 13This is a schematic diagram illustrating a method for manufacturing a display module according to an embodiment of the present disclosure. Detailed Implementation

[0042] In this specification, when an element (or region, layer, part, etc.) is referred to as being “on”, “connected to”, or “attached to” another element, it means that the element may be directly disposed on, connected to, or attached to another element, or a third element may be disposed between them.

[0043] The same reference numerals denote the same elements. Furthermore, in the drawings, the thickness, ratios, and dimensions of the elements are exaggerated for the sake of effective description of the technical content. The term "and / or" includes all combinations that can be defined by one or more related configurations.

[0044] It should be understood that although the terms first, second, etc., may be used herein to describe various elements, these elements should not be limited by these terms. These terms are used only to distinguish one element from another. For example, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element without departing from the scope of exemplary embodiments of this disclosure. Singular terms may include plural meanings unless the context clearly indicates otherwise.

[0045] Furthermore, terms such as "below," "lower part," "above," and "upper part" are used to describe the relationships between the components shown in the accompanying drawings. These terms are relative concepts and are described based on the directions indicated in the drawings.

[0046] It should be understood that the terms “comprising” or “having” are intended to specify the presence of features, integrals, processes, operations, elements, components or combinations thereof stated in this disclosure, but do not exclude the presence or addition of one or more other features, integrals, processes, operations, elements, components or combinations thereof.

[0047] For the purposes of its meaning and interpretation, the phrase “at least one of…” is intended to include the meaning of “at least one selected from the group of…”. For example, “at least one of A and B” can be understood as “A, B, or A and B”.

[0048] Unless otherwise specified or implied herein, all terms used herein (including technical and scientific terms) shall have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure pertains. It should also be understood that terms, such as those defined in commonly used dictionaries, shall be interpreted as having a meaning consistent with their meaning in the context of the relevant technology and this disclosure, and shall not be interpreted as having an ideal or overly formal meaning unless clearly defined herein.

[0049] In the following description, embodiments of the present disclosure will be described with reference to the accompanying drawings.

[0050] Figure 1 This is a schematic plan view of the display module according to the implementation method.

[0051] Reference Figure 1 The display module 1000 can define an active area AA and a peripheral area NAA. The active area AA can be an area that is activated in response to an electrical signal. The driving circuit, driving lines, etc. used to drive the active area AA can be set in the peripheral area NAA.

[0052] The effective area AA of the display module 1000 may include a plane defined by a first direction DR1 and a second direction DR2. The thickness direction of the display module 1000 may be parallel to a third direction DR3 that intersects with the first direction DR1 and the second direction DR2. Therefore, the front (or upper) surface and rear (or lower) surface of each of the components constituting the display module 1000 may be defined based on the third direction DR3. In this specification, the phrases "when viewed in a plane" or "in a plan view" may be interpreted as viewed in the thickness direction of the display module 1000 or viewed on the third direction DR3.

[0053] Figure 2 It is according to the implementation method along Figure 1 The schematic cross-sectional view shown is taken by line I-I'.

[0054] Reference Figure 2 The display module 1000 may include a display panel 100, a first film 200, a second film 300, a first adhesive layer AL1, and a second adhesive layer AL2. The first film 200, the first adhesive layer AL1, the display panel 100, the second adhesive layer AL2, and the second film 300 may be stacked sequentially.

[0055] The display panel 100 may have a configuration that substantially produces an image. The display panel 100 may be a light-emitting display panel. For example, the display panel 100 may be an organic light-emitting display panel, a quantum dot light-emitting display panel, or a micro LED display panel.

[0056] The display panel 100 may also include an input sensor that senses external input applied from the outside. External input may be user input. User input can include various forms of external input, such as a part of the user's body, light, heat, a pen, or pressure.

[0057] For example, display panel 100 may include a display layer and a sensor layer. The sensor layer may be formed on the display layer through a series of processes. In this case, the sensor layer may be represented as being directly disposed on the display layer. Direct disposal may mean that a third component is not disposed between the sensor layer and the display layer. For example, a separate adhesive component may not be disposed between the sensor layer and the display layer.

[0058] As another example, the display panel 100 may include a display layer, an adhesive layer, and a sensor layer. In this case, the sensor layer can be coupled or connected through the display layer and the adhesive layer.

[0059] The first film 200 can be disposed on the display panel 100. The first film 200 can be a polarizing film. The first film 200 can reduce the reflectivity of external light incident from the outside. The first film 200 can include a stretchable synthetic resin film. For example, the first film 200 can be disposed by dyeing a polyvinyl alcohol film (PVA film) with an iodine compound.

[0060] The second film 300 may be disposed below the display panel 100. The second film 300 may be referred to as a protective film or a patterned film. The second film 300 protects the rear surface of the display panel 100. The second film 300 prevents scratches from occurring on the rear surface of the display panel 100. The second film 300 may be a colored polyimide film. For example, the second film 300 may be an opaque yellow film, but is not limited thereto.

[0061] A first adhesive layer AL1 is disposed between the display panel 100 and the first film 200, and the first adhesive layer AL1 can be attached to the display panel 100 and the first film 200. A second adhesive layer AL2 is disposed between the display panel 100 and the second film 300, and the second adhesive layer AL2 can be attached to the display panel 100 and the second film 300. The first adhesive layer AL1 and the second adhesive layer AL2 can be pressure-sensitive adhesive (PSA) films or optically transparent adhesive (OCA), but are not particularly limited thereto.

[0062] The first side surface 100S of the display panel 100 may protrude less than the second side surface 200S of the first film 200 and the third side surface 300S of the second film 300. Therefore, in a plan view (i.e., when viewed in the thickness direction of the display panel 100, for example, in the third direction DR3), the first side surface 100S of the display panel 100 may overlap with the first film 200 and the second film 300. For example, when viewed in the thickness direction of the display panel 100, a portion of the first film 200 and a portion of the second film 300 may not overlap with the display panel 100.

[0063] The second side surface 200S of the first film 200 and the third side surface 300S of the second film 300 may each extend in a direction inclined relative to the first side surface 100S of the display panel 100.

[0064] The inclination of the second side surface 200S of the first film 200 relative to the first side surface 100S of the display panel 100 and the inclination of the third side surface 300S of the second film 300 relative to the first side surface 100S of the display panel 100 can each be constant. Therefore, in cross-section, the second side surface 200S of the first film 200 and the third side surface 300S of the second film 300 can be formed by straight lines.

[0065] Taking into account the thickness of the display panel 100 and the remaining space of the housing or casing to which the display module 1000 is connected, the degree of protrusion of the first film 200 and the second film 300 can be determined.

[0066] When viewed in the thickness direction of the display panel 100, the maximum width WT between the first side surface 100S of the display panel 100 and the second side surface 200S of the first film 200, and the maximum width WT between the first side surface 100S of the display panel 100 and the third side surface 300S of the second film 300, can each be approximately 1 / 4 to approximately 3 times the thickness TK of the display panel 100. Assuming the thickness TK of the display panel 100 is approximately 40 micrometers, the maximum width WT can be approximately 10 micrometers to approximately 120 micrometers. For example, if the maximum width WT is less than approximately 10 micrometers, the display panel 100 may not be adequately protected by the first film 200 and the second film 300. The upper limit of the maximum width WT is not limited to the numerical examples above, and the upper limit of the maximum width WT can be extended as much as possible, taking into account the remaining space of the housing or enclosure to which the display module 1000 is attached. The maximum width WT can be referred to as the protrusion width.

[0067] According to the implementation, since external impacts are mainly absorbed by the first film 200 or the second film 300 protruding beyond the display panel 100, the possibility of external impacts being directly transmitted to the display panel 100 can be reduced. For example, the display panel 100 can have a structure resistant to external impacts, and the phenomenon in which defective pixel areas, visually identified as dark spots, gradually expand can be reduced or prevented.

[0068] Figure 3 It is according to the implementation method along Figure 1 The schematic cross-sectional view shown is taken by line I-I'.

[0069] Reference Figure 3 The display module 1001 may include a display panel 100, a first film 201, a second film 301, a first adhesive layer AL11, and a second adhesive layer AL21.

[0070] The second side surface 201S of the first film 201 and the third side surface 301S of the second film 301 can protrude beyond the first side surface 100S of the display panel 100. Therefore, the display panel 100 can have a structure resistant to external impacts.

[0071] When viewed in the thickness direction of the display panel 100 (e.g., in the third direction DR3), the first side surface 100S of the display panel 100 can overlap with the first film 201 and the second film 301. Therefore, a portion of the first film 201 and a portion of the second film 301 may not overlap with the display panel 100.

[0072] The first side surface 100S of the display panel 100, the second side surface 201S of the first film 201, and the third side surface 301S of the second film 301 can be parallel to a predetermined direction. For example, the first side surface 100S of the display panel 100, the second side surface 201S of the first film 201, and the third side surface 301S of the second film 301 can be parallel to the thickness direction of the display panel 100, for example, parallel to the third direction DR3.

[0073] When viewed on a third-party DR3, the first side surface 100S of the display panel 100 can be separated from the second side surface 201S of the first film 201 and the third side surface 301S of the second film 301.

[0074] The side surface AL1S of the first adhesive layer AL11 and the side surface AL2S of the second adhesive layer AL21 may have a shape that is inclined relative to the thickness direction of the display panel 100. For example, the side surface AL1S of the first adhesive layer AL11 may extend in a direction away from the upper surface of the display panel 100, and the side surface AL2S of the second adhesive layer AL21 may extend in a direction away from the lower surface of the display panel 100.

[0075] According to the embodiment, since external impacts are mainly absorbed by the first film 201 or the second film 301 protruding beyond the display panel 100, the possibility of external impacts being directly transmitted to the display panel 100 can be reduced. For example, the display panel 100 can have a structure resistant to external impacts, and the phenomenon in which defective pixel areas, visually identified as dark spots, gradually expand can be reduced or prevented.

[0076] Figure 4 It is according to the implementation method along Figure 1 The schematic cross-sectional view shown is taken by line I-I'.

[0077] Reference Figure 4The display module 1002 may include a display panel 100, a first film 202, a second film 302, a first adhesive layer AL12, and a second adhesive layer AL22. The second side surface 202S of the first film 202 and the third side surface 302S of the second film 302 may protrude beyond the first side surface 100S of the display panel 100. Therefore, the display panel 100 may have a structure resistant to external impacts.

[0078] The second side surface 202S of the first membrane 202 and the side surface AL1S1 of the first adhesive layer AL12 can be connected to each other to have a continuous shape. The third side surface 302S of the second membrane 302 and the side surface AL2S1 of the second adhesive layer AL22 can be connected to each other to have a continuous shape. In a cross-sectional view, for example, the first membrane 202 and the first adhesive layer AL12 can be aligned such that their side surfaces 202S and AL1S1 can form a curve, and the second membrane 302 and the second adhesive layer AL22 can be aligned such that their side surfaces 302S and AL2S1 can form a curve.

[0079] The inclination of the second side surface 202S of the first film 202 relative to the first side surface 100S of the display panel 100 can vary depending on its position within the second side surface 202S. Similarly, the inclination of the third side surface 302S of the second film 302 relative to the first side surface 100S of the display panel 100 can vary depending on its position within the third side surface 302S. Therefore, in cross-section, the second side surface 202S of the first film 202 and the third side surface 302S of the second film 302 can be formed by curves.

[0080] Figure 5A It is according to the implementation method along Figure 1 The schematic cross-sectional view shown is taken by line I-I'.

[0081] Reference Figure 5A The display module 1003 may include a display panel 100, a first film 203, a second film 303, a first adhesive layer AL1, and a second adhesive layer AL2. The second side surface 203S of the first film 203 may protrude beyond the first side surface 100S of the display panel 100. Therefore, the first side surface 100S of the display panel 100 may have a structure resistant to external impact.

[0082] In cross-section, the extension direction of the first side surface 100S of the display panel 100 may be parallel to the thickness direction of the display panel 100, for example, parallel to the third direction DR3. In cross-section, the extension direction of the second side surface 203S of the first film 203 may be different from the extension direction of the first side surface 100S of the display panel 100.

[0083] Figure 5B It is according to the implementation method along Figure 1 The schematic cross-sectional view shown is taken by line I-I'.

[0084] Reference Figure 5B The display module 1004 may include a display panel 100, a first film 204, a second film 304, a first adhesive layer AL1, and a second adhesive layer AL2. The side surface 304S of the second film 304 may protrude beyond the first side surface 100S of the display panel 100. Therefore, the display panel 100 may have a structure resistant to external impacts.

[0085] In cross-section, the extension direction of the first side surface 100S of the display panel 100 may be parallel to the thickness direction of the display panel 100, for example, parallel to the third direction DR3. In cross-section, the extension direction of the side surface 304S of the second film 304 may be different from the extension direction of the first side surface 100S of the display panel 100.

[0086] Figures 6A to 6C This is a schematic diagram illustrating the testing of the display module.

[0087] Reference Figures 6A to 6C An impact can be applied to display modules 1000C, 1003, and 1000 using the impact generation unit TM. External impacts can be provided by the impact generation unit TM. For example, the impact generation unit TM can apply an impact to display modules 1000C, 1003, and 1000 at a speed of approximately 0.2 m / sec.

[0088] Reference Figure 6A The comparison display module 1000C is shown. The comparison display module 1000C may include a display panel 100C, a first film 200C, a second film 300C, a first adhesive layer AL1, and a second adhesive layer AL2. The side surfaces of the display panel 100C, the first film 200C, the second film 300C, the first adhesive layer AL1, and the second adhesive layer AL2 can be aligned on the same plane. In this case, when an impact is applied to the comparison display module 1000C using an impact generating unit TM, the maximum stress generated on the display panel 100C is measured to be approximately 4.436 MPa.

[0089] Reference Figure 6B The impact generating unit TM can first contact the first film 203 protruding beyond the display panel 100, and external impacts can be mainly absorbed by the first film 203. In this case, the maximum stress generated in the display panel 100 is measured to be approximately 2.530 MPa. When compared with the case where the side surfaces of the components of the comparison display module 1000C are all aligned, it can be seen that the maximum stress is reduced to a level of approximately 57%.

[0090] Reference Figure 6CThe impact generating unit TM can first contact the first film 200 and the second film 300 that protrude beyond the display panel 100. Therefore, external impacts can be mainly absorbed by the first film 200 and the second film 300. In this case, the maximum stress generated in the display panel 100 is measured to be approximately 1.217 MPa. When compared with the case where the side surfaces of the components of the comparison display module 1000C are all aligned, it can be seen that the maximum stress is reduced to a level of approximately 27%.

[0091] When a structure protruding beyond the side surface of the display panel 100 is applied to at least one of the first film 200 and the second film 300, the display panel 100 can have a structure resistant to external impact. Therefore, the likelihood of cracks occurring at the edge portions of the display panel 100 due to external impact can be reduced, and thus defects that may be caused by cracks, such as the gradual expansion of defective pixel areas visually identified as dark spots, can be reduced or prevented.

[0092] Figure 7A and Figure 7B This is a schematic diagram illustrating the testing of the display module.

[0093] Reference Figure 7A and Figure 7B An impact can be applied to display modules 1003 and 1000 using an impact generating unit TM. These are used to investigate the impact on display modules 1003 and 1000 when they are dropped while tilted, for example, a tilt impact, and the angle at which the impact generating unit TM applies the impact to display modules 1003 and 1000 differs from the previous reference angle. Figure 6A and Figure 6B Those angles mentioned.

[0094] Reference Figure 7A In a structure in which a film protrusion (e.g., only the first film 203 protrudes) is disposed on one side of the display panel 100, the maximum stress generated in the display panel 100 is measured to be approximately 1.995 MPa.

[0095] Reference Figure 7B In a structure in which both the first film 200 and the second film 300 protrude from both sides of the display panel 100, the maximum stress generated in the display panel 100 is measured to be approximately 1.158 MPa. When compared with a structure in which the film protrudes only from one side of the display panel 100, it can be seen that the maximum stress is reduced to approximately 58%.

[0096] Figure 8 This is a schematic plan view of the display module according to the implementation method. Figure 9 It is according to the implementation method along Figure 8The schematic cross-sectional view shown is taken from line II-II'.

[0097] Reference Figure 8 The effective area AA and the peripheral area NAA can be defined in the display module 1000A. The side surface of the display module 1000A may include a first side surface portion 1000CS and a second side surface portion 1000S.

[0098] The first side surface portion 1000CS can have a reference. Figure 2 , Figure 3 , Figure 4 , Figure 5A or Figure 5B The described cross-sectional structure, and in the second side surface portion 1000S, the display panel 100A, the first film 200A, and the second film 300A can be as follows: Figure 9 The alignment is shown in the diagram.

[0099] For example, Figure 1 The display module 1000 shown (see Figure 1 It may have the entire side surface of the display panel 100 (see...) Figure 2 ) and the first membrane 200 (see Figure 2 ) and the second membrane 300 (see Figure 2 Overlapping structures. Figure 8 In the display module 1000A shown, a portion of the side surface of the display panel 100A may overlap with at least one of the first film 200A and the second film 300A, and another portion of the side surface of the display panel 100A may be as follows: Figure 9 The first film 200A and the second film 300A are aligned as shown. In other words, a portion of the side surface of the display panel 100A of the first side surface portion 1000CS can overlap with at least one of the first film 200A and the second film 300A, and another portion of the side surface of the display panel 100A of the second side surface portion 1000S can be aligned with the side surfaces of the first film 200A and the second film 300A.

[0100] The first side surface portion 1000CS can be referred to as a protruding portion or a protective portion. Multiple first side surface portions 1000CS can be provided. For example, the first side surface portion 1000CS has a compensation structure that allows the display panel 100A to withstand external impacts and thus can be provided on impact-sensitive portions. For example, the first side surface portion 1000CS can be provided on a portion corresponding to the protruding portion of the tray of the movable display module 1000A. Although Figure 8The illustration shows a total of six first side surface portions 1000CS, but the implementation is not limited to this. Therefore, the number and length of the first side surface portions 1000CS can be varied.

[0101] Figure 10 This is a schematic plan view of the preliminary display module according to the implementation method.

[0102] Reference Figure 10 Prepare a preliminary display module 1001P. The preliminary display module 1001P may include a valid area 1001a and an invalid area 1001b. The valid area 1001a may correspond to the display module 1000 (see...). Figure 1 The invalid region 1001b may correspond to the region removed by the cutting process.

[0103] Figures 11A to 11C This is a schematic diagram illustrating a method for manufacturing a display module according to an embodiment.

[0104] Reference Figure 11A The initial display module 1001P may include a first protective film 200PP, a first film 200P, a display panel 100P, a second film 300P, and a second protective film 300PP stacked sequentially. A third adhesive layer AL3 may be disposed between the first protective film 200PP and the first film 200P, and a fourth adhesive layer AL4 may be disposed between the second film 300P and the second protective film 300PP.

[0105] Reference Figure 11A The preliminary display module 1001P is placed in an environment with a temperature different from room temperature. For example, the preliminary display module 1001P can be placed in an environment with a temperature higher or lower than room temperature. The preliminary display module 1001P can then be irradiated with a laser beam (LBD). The laser beam (LBD) can be irradiated in a direction parallel to the thickness direction of the preliminary display module 1001P. The temperature difference between room temperature and the temperature of the environment in which the laser beam (LBD) is irradiated can be approximately 20 degrees Celsius, but is not particularly limited to this.

[0106] Reference Figure 11A and Figure 11B The initial display module 1001P is cut to form a first initial side surface 1000PS. The first initial side surface 1000PS can be defined in such a way that the side surfaces of the first protective film 200PP1, the first film 201, the display panel 100, the second film 301, and the second protective film 300PP1 are connected to each other.

[0107] Reference Figure 11B and Figure 11CThe preliminary display module 1001P, in which a first preliminary side surface 1000PS is formed, is disposed at room temperature. In this case, the display panel 100, the first film 201, and the second film 301 may have different coefficients of thermal expansion. For example, the coefficient of thermal expansion of the display panel 100 may be about 7.6 ppm (parts per million), and the coefficient of thermal expansion of the polyethylene terephthalate (PET) film may be about 70 ppm. Therefore, the shape of the first preliminary side surface 1000PS may be deformed due to the different coefficients of thermal expansion to form a second preliminary side surface 1000PSa.

[0108] The first protective film 200PP1 and the second protective film 300PP1 are used to protect the display panel 100 when the display module 1001 is moved. Since the side surfaces of the first protective film 200PP1 and the second protective film 300PP1 also protrude beyond the display panel 100, external impacts can be prevented from being directly transmitted to the edge portions of the display panel 100. Then, in a subsequent process, the first protective film 200PP1 and the second protective film 300PP1 are removed to form the display module 1001.

[0109] Figure 12A and Figure 12B This is a schematic diagram illustrating a method for manufacturing a display module according to an embodiment.

[0110] Reference Figure 12A and Figure 12B The first laser beam LBD1 irradiates the preliminary display module 1001P in the thickness direction, for example, in a direction inclined relative to the third party towards DR3. The first laser beam LBD1 can irradiate from the first protective film 200PP toward the display panel 100P. A portion of the preliminary display module 1001P in the thickness direction can be cut by the first laser beam LBD1 to form the first preliminary side surface 1000PS1.

[0111] Then, a second laser beam LBD2 is irradiated in a direction inclined relative to the thickness direction of the initial display module 1001P. The second laser beam LBD2 can irradiate from the second protective film 300PP toward the display panel 100P. A portion of the initial display module 1001P in the thickness direction can be cut to form the second initial side surface 1000PS2.

[0112] Figure 13 This is a schematic diagram illustrating a method for manufacturing a display module according to an embodiment.

[0113] Reference Figure 13The first preliminary side surface 1000PSx, the second preliminary side surface 1000PSy, and the third preliminary side surface 1000PSz formed in the preliminary display module 1001P can be subjected to the same processing. The first preliminary side surface 1000PSx can be defined as the side surface of the first film 200P, the second preliminary side surface 1000PSy can be defined as the side surface of the display panel 100P, and the third preliminary side surface 1000PSz can be defined as the side surface of the second film 300P.

[0114] For example, at least one of the first protective film 200PP and the first film 200P may include the material of the focal point of the defocused laser beam LBD, and either the second film 300P or the second protective film 300PP may include the material of the focal point of the focused laser beam LBD. Therefore, even when the laser beam LBD is irradiated in a direction parallel to the thickness direction of the display module 1001, the focal point of the laser beam LBD can be defocused and focused to form the first film 200P and the second film 300P, which have more side surfaces protruding than the side surfaces of the display panel 100P.

[0115] As described above, since external impacts are primarily absorbed by the first or second film protruding beyond the display panel, the likelihood of external impacts being directly transmitted to the display device can be reduced. For example, the display panel can have a structure resistant to external impacts, and the phenomenon in which defective pixel areas, visually perceived as dark spots, gradually expand can be reduced or prevented.

[0116] Although the foregoing description has been made with reference to embodiments of this disclosure, those skilled in the art or of ordinary skill in related fields will not depart from the spirit and scope of this disclosure as set forth in the claims described below. It should be understood that various modifications and alterations can be made to this disclosure within its scope. Therefore, the technical scope of this disclosure should not be limited to the content described in the detailed description of the specification.

Claims

1. Display module, including: Display panel, including a first side surface; A first film is disposed on the display panel and includes a second side surface; The second film is disposed below the display panel and includes a third side surface; A first adhesive layer is disposed between the display panel and the first film; as well as A second adhesive layer is disposed between the display panel and the second film, wherein, In the plan view, the first side surface of the display panel overlaps with the first film and the second film, and At least a portion of the second side surface and at least a portion of the third side surface protrude beyond the first side surface; The first side surface of the display panel, the second side surface of the first film, and the third side surface of the second film are arranged parallel to each other in the thickness direction of the display panel. The side surfaces of the first adhesive layer and the second adhesive layer have a shape that is inclined relative to the thickness direction of the display panel.

2. The display module according to claim 1, wherein, The second side surface of the first film and the side surface of the first adhesive layer are connected to each other to have a continuous shape, and The third side surface of the second membrane and the side surface of the second adhesive layer are connected to each other to have a continuous shape.

3. The display module of claim 1, wherein, In a plan view, the maximum width between the first side surface of the display panel and the second side surface of the first film is at least 1 / 4 times the thickness of the display panel.

4. The display module of claim 1, wherein, In the plan view, the entire side surface of the display panel overlaps with the first film and the second film.

5. The display module according to claim 1, wherein, In the plan view, a portion of the side surface of the display panel overlaps with the first film and the second film, and In the plan view, another portion of the side surface of the display panel is aligned with a portion of the side surface of the first film and a portion of the side surface of the second film.

6. The display module according to claim 1, wherein, The inclination of the second side surface of the first film relative to the first side surface of the display panel is constant, and The inclination of the third side surface of the second film relative to the first side surface of the display panel is constant.

7. The display module according to claim 1, wherein, The inclination of the second side surface of the first film relative to the first side surface of the display panel varies depending on its position within the second side surface. The inclination of the third side surface of the second film relative to the first side surface of the display panel varies depending on its position on the third side surface.

8. A method for manufacturing a display module, comprising: Prepare a preliminary display module, which includes a first protective film, a first film, a first adhesive layer, a display panel, a second adhesive layer, a second film, and a second protective film stacked sequentially. A first preliminary side surface is formed on the preliminary display module; A second preliminary side surface is formed on the preliminary display module; as well as The display module is formed by removing the first protective film and the second protective film; In the plan view, at least a portion of the first film and at least a portion of the second film protrude beyond the display panel; The first side surface of the display panel, the second side surface of the first film, and the third side surface of the second film are arranged parallel to each other in the thickness direction of the display panel, and the side surfaces of the first adhesive layer and the second adhesive layer have a shape that is inclined relative to the thickness direction of the display panel.

9. The method of claim 8, wherein, Forming the first preliminary side surface includes: The preliminary display module is placed at a temperature different from room temperature; Irradiate the preliminary display module with a laser beam; and The preliminary display module is cut to form the first preliminary side surface.

10. The method of claim 9, wherein, Forming the second preliminary side surface includes: After forming the first preliminary side surface, the preliminary display module is placed at the room temperature; and The shape of the first preliminary side surface is deformed to form the second preliminary side surface.

11. The method of claim 8, wherein, Forming the first preliminary side surface includes: The preliminary display module is irradiated with a first laser beam in a direction inclined relative to the thickness direction of the preliminary display module and in a direction from the first protective film toward the display panel; and A portion of the preliminary display module is cut in the thickness direction to form the first preliminary side surface.

12. The method of claim 8, wherein, Forming the second preliminary side surface includes: The preliminary display module is irradiated with a second laser beam in a direction inclined relative to the thickness direction of the preliminary display module and in a direction from the second protective film toward the display panel; and A portion of the preliminary display module is cut in the thickness direction to form the second preliminary side surface.

13. The method of claim 8, wherein, Forming the first preliminary side surface and forming the second preliminary side surface each include: The preliminary display module is irradiated with a laser beam in the thickness direction to form the first preliminary side surface and the second preliminary side surface.

14. The method according to claim 13, wherein, The first protective film and at least one of the first films include a material that defocuses the laser beam, and At least one of the second film and the second protective film includes a material that focuses the laser beam at the focal point.

15. Display module, including: Display panel, including a first side surface; A first film is disposed on the display panel and includes a second side surface; The second film is disposed below the display panel and includes a third side surface; A first adhesive layer is disposed between the display panel and the first film; as well as A second adhesive layer is disposed between the display panel and the second film. in, At least one of the second side surface of the first film and the third side surface of the second film protrudes a greater width than the first side surface of the display panel. The protruding width is 1 / 4 to 3 times the thickness of the display panel; The first side surface of the display panel, the second side surface of the first film, and the third side surface of the second film are parallel to each other in the thickness direction of the display panel. The side surfaces of the first adhesive layer and the second adhesive layer each have a shape that is inclined relative to the thickness direction of the display panel.

16. The display module according to claim 15, wherein, In the plan view, the entire side surface of the display panel overlaps with the first film and the second film.

17. The display module according to claim 15, wherein, In the plan view, a portion of the side surface of the display panel overlaps with the first film and the second film, and In the plan view, another portion of the side surface of the display panel is aligned with a portion of the side surface of the first film and a portion of the side surface of the second film.

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