Disassembly method of display module and remanufacturing method of disassembled display module

Abstract

Disclosed are a method for disassembling a display module and a method for remanufacturing the display module, the method for disassembling the display module comprising: attaching an auxiliary sheet to the display module by using an adhesive tape, the display module comprising a display panel attached to a window by an adhesive layer, and the auxiliary sheet attached to the display module comprising an external force applying portion exposed outside an outer edge of the display module; cooling the display module and the auxiliary sheet attached thereto by the adhesive tape; and after cooling the display module and the auxiliary sheet attached thereto, separating the display panel and the window from each other by applying force to the external force applying portion of the auxiliary sheet attached to the display module.

Description

[0001] This application claims priority to and all rights arising from Korean Patent Application No. 10-2018-0136006, filed on November 7, 2018, the entire contents of which are incorporated herein by reference. Technical Field

[0002] The present disclosure relates to a method for disassembling a display module and a method for remanufacturing the disassembled display module. Background Art

[0003] The display device includes a display module including a display panel for displaying an image and a window for protecting the display panel. The display module is manufactured, for example, by attaching the display panel to the window with an adhesive layer.

[0004] Display devices with minimal borders at the top and bottom of the display panel and at the left and right sides thereof have been developed. In this case, the planar dimensions of the window and the planar dimensions of the display panel are very similar.

[0005] When a display panel or window of a display module is defective, the defective component is replaced. Summary of the invention

[0006] The present invention provides a disassembly method of a display module, in which a display panel and a window can be separated from each other relatively easily.

[0007] Furthermore, the present invention provides a remanufacturing method of a display module, in which a display panel and a window can be relatively easily separated from each other, and then a new display panel or a new window can be attached to a separate window or a separate display panel, respectively.

[0008] An embodiment of the present invention provides a method for disassembling a display module, comprising: attaching an auxiliary sheet to the display module by using an adhesive tape, the display module including a display panel attached to a window by an adhesive layer, and the auxiliary sheet attached to the display module including an external force applying portion exposed outside an outer edge of the display module; cooling the display module with the auxiliary sheet attached thereto; and after cooling the display module with the auxiliary sheet attached thereto, separating the display panel and the window from each other by applying force to the external force applying portion of the auxiliary sheet attached to the display module.

[0009] In cooling the display module having the auxiliary sheet attached thereto, the adhesive tape and the adhesive layer may each be cooled to a temperature of about -80 degrees Celsius to about -120 degrees Celsius.

[0010] The adhesive force of the adhesive tape at a temperature of about -80 degrees Celsius to about -120 degrees Celsius may be stronger than the adhesive force of the adhesive layer at a temperature of about -80 degrees Celsius to about -120 degrees Celsius.

[0011] Attaching the auxiliary sheet to the display module may include attaching the auxiliary sheet to the window by using an adhesive tape.

[0012] The plane area of ​​the auxiliary sheet may be larger than the plane area of ​​the window.

[0013] During the process of separating the display panel and the window from each other, the adhesive layer may remain attached to the display panel.

[0014] Attaching the auxiliary sheet to the display module may include attaching the auxiliary sheet to the display panel by using an adhesive tape.

[0015] The plane area of ​​the auxiliary sheet may be larger than the plane area of ​​the display panel.

[0016] During the process of separating the display panel and the window from each other, the adhesive layer may remain attached to the window.

[0017] Another embodiment of the present invention provides a remanufacturing method of a display module, including: providing a display module by attaching a display panel to a window using an adhesive layer; attaching an auxiliary sheet to a display panel or a window of the display module by using an adhesive tape, the auxiliary sheet attached to the display module including an external force applying portion exposed outside an outer edge of the display module; cooling the display module having the auxiliary sheet attached thereto; after cooling the display module having the auxiliary sheet attached thereto, separating the display panel and the window from each other by applying a force to the external force applying portion of the auxiliary sheet attached to the display panel or the window; and removing the adhesive layer from one of the display panel and the window to which the auxiliary sheet is not attached. The remanufactured display module includes a display panel or a window to which the auxiliary sheet is not attached.

[0018] In the process of removing the adhesive layer, the adhesive layer remaining attached to the display panel may be removed from the display panel. The method may further include: after removing the adhesive layer from the display panel, attaching a new window to the display panel from which the adhesive layer has been removed by using a new adhesive layer.

[0019] In the process of removing the adhesive layer, the adhesive layer remaining attached to the window may be removed from the window. The method may further include: after removing the adhesive layer from the window, attaching a new display panel to the window from which the adhesive layer has been removed by using a new adhesive layer.

[0020] According to one or more of the embodiments, the display panel and the window may be separated from each other relatively easily.

[0021] Furthermore, according to one or more of the embodiments, the display panel and the window may be relatively easily separated from each other, and a new display panel or a new window may be attached to a separate window or a separate display panel, respectively. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above and other advantages and features of the present disclosure will become more apparent by further describing exemplary embodiments of the present disclosure in detail with reference to the accompanying drawings, in which:

[0023] Figure 1 A flow chart schematically illustrates an embodiment of a method for disassembling and remanufacturing a display module.

[0024] Figures 2 to 6 An embodiment of a method for disassembling and remanufacturing a display module is shown.

[0025] Figures 7 to 9 Another embodiment of a method for disassembling and remanufacturing a display module is shown. DETAILED DESCRIPTION

[0026] Hereinafter, the present invention will be described more fully with reference to the accompanying drawings, in which exemplary embodiments of the present invention are shown. As will be appreciated by those skilled in the art, the described embodiments may be implemented in many different forms without departing from the spirit or scope of the present disclosure.

[0027] Parts irrelevant to the description will be omitted to clearly describe the present disclosure, and the same reference numerals refer to the same elements throughout the specification.

[0028] In addition, in the drawings, the size and thickness of each element are arbitrarily shown for ease of description, and the present disclosure is not necessarily limited to the size and thickness shown in the drawings. In the drawings, the thickness of layers, films, panels, regions, etc. are exaggerated for clarity. In the drawings, the thickness of some layers and regions are exaggerated for ease of description.

[0029] It should be understood that when an element such as a layer, film, region or substrate is referred to as being associated with another element, such as being "on" another element, it may be directly on the other element or there may be an intervening element. Conversely, when an element is referred to as being associated with another element, such as "directly on" another element, there are no intervening elements. In addition, in the specification, the words "on" and "above" indicate positioning on and below a target portion, and do not necessarily mean positioning on the upper side of the target portion based on the direction of gravity.

[0030] It should be understood that although the terms "first", "second", "third", etc. may be used herein to describe various elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer or section from another element, component, region, layer or section. Therefore, the "first element", "first component", "first region", "first layer" or "first section" discussed below may be referred to as the second element, second component, second region, second layer or second section without departing from the teachings herein.

[0031] The terms used herein are for the purpose of describing specific embodiments only and are not intended to be limiting. As used herein, the singular forms "a", "an", and "the" are intended to include plural forms, including "at least one", unless the content clearly states otherwise. "At least one" should not be understood to be limited to "a" or "an". "Or" means "and / or". As used herein, the term "and / or" includes any and all combinations of one or more of the relevant listed items. In addition, unless explicitly described to the contrary, the word "comprise" and variations such as "comprises" or "comprising" should be understood to imply the inclusion of the elements set forth without excluding any other elements.

[0032] Furthermore, throughout the specification, the phrase "on a plane" means observing a target portion from the top, and the phrase "on a cross section" means observing a cross section formed by vertically cutting the target portion from the side.

[0033] In addition, relative terms such as "lower" or "bottom" and "upper" or "top" may be used herein to describe the relationship of one element to another element as shown in the figures. It should be understood that relative terms are intended to cover different orientations of the device in addition to the orientations depicted in the figures. For example, if the device in one of the figures is turned over, the element described as being on the "lower" side of the other element will then be oriented on the "upper" side of the other element. Therefore, the exemplary term "lower" can cover both "lower" and "upper" orientations depending on the specific orientation of the figure. Similarly, if the device in one of the figures is turned over, the element described as being "below" or "below" the other element will then be oriented "above" the other element. Therefore, the exemplary term "below" or "below" can cover both upper and lower orientations.

[0034] As used herein, "about" or "approximately" includes the stated value and the mean value within an acceptable deviation range of the particular value as determined by one of ordinary skill in the art taking into account the measurement in question and the errors associated with the measurement of the particular quantity (i.e., the limitations of the measurement system). For example, "about" can mean within one or more standard deviations, or within ±30%, ±20%, ±10%, or ±5% of the stated value.

[0035] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by those skilled in the art to which the present disclosure belongs. It should also be understood that terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant art and the present disclosure, and should not be interpreted in an idealized or overly formal sense, unless explicitly defined as such herein.

[0036] Exemplary embodiments are described herein with reference to cross-sectional views as schematic diagrams of idealized embodiments. Thus, deviations from the illustrated shapes due to, for example, manufacturing techniques and / or tolerances are expected. Therefore, the embodiments described herein should not be construed as being limited to the specific shapes of the regions as shown herein, but should include shape deviations due to, for example, manufacturing. For example, a region shown or described as flat may typically have rough and / or nonlinear features. In addition, the sharp corners shown may be rounded. Therefore, the regions shown in the figures are schematic in nature, and their shapes are not intended to illustrate the precise shapes of the regions and are not intended to limit the scope of the claims set forth.

[0037] When a display panel or window of a display module for a display device is defective, the display module is disassembled into separate components of the display panel and the window. In order to replace the defective component, a new display panel or a new window is bonded to the remaining (non-defective) components of the display module to remanufacture the display module.

[0038] For a display device having minimum bezel sizes at the top, bottom, left, and right of the display panel in a plan view, the plan size of the window and the plan size of the display panel are very similar. In the case where the plan size of the window is substantially the same as the plan size of the display panel, it may be difficult to separate the window and the display panel from each other during replacement of a defective component of the display module.

[0039] Figure 1 A flow chart illustrating an embodiment of a method for disassembling and remanufacturing a display module of a display device.

[0040] Reference Figure 1, the disassembly and remanufacturing method of the display module includes: providing a display module (S10); confirming a defect of the display module (S20); attaching an auxiliary sheet to the display module (S30); and cooling the display module having the auxiliary sheet attached thereto (S40). In addition, the disassembly and remanufacturing method of the display module includes separating a display panel and a window of the display module from each other (S50), cleaning an adhesive layer (S60), and attaching a new window to the display panel (S70).

[0041] In the process of providing the display module ( S10 ), a display panel and a window are attached to each other, such as by using an adhesive layer.

[0042] The display panel displays an image and may include a plurality of transistors, a plurality of light-emitting members such as light-emitting diodes, and a plurality of signal transmission lines connected to the transistors and the light-emitting diodes. Each of the above components may be disposed on or in a substrate of the display panel. Optionally, a substrate on or in which a plurality of transistors, a plurality of pixel electrodes, and a plurality of signal transmission lines connected to the plurality of transistors and the plurality of pixel electrodes are disposed, a substrate on or in which a plurality of color filters and common electrodes are disposed, and a light transmission control layer such as a liquid crystal layer interposed between the two substrates may be included in the display panel.

[0043] The window protects the display panel that displays the image. The window may include glass or plastic. The window may form the outermost surface of the display panel. The window may be disposed at the viewing side of the display module, such as on the display surface of the display panel.

[0044] In the process of confirming the defect of the display module (S20), the presence or absence of a defect of the display panel or the window is determined and confirmed. The display panel and the window may together form a stacked structure of the display module.

[0045] In the process of attaching the auxiliary sheet to the display module (S30), the auxiliary sheet is attached to the display panel and window of the display module, such as using an adhesive tape. The auxiliary sheet is attached to the display module at a component (e.g., a display panel or a window) of the display module where a defect is confirmed. In an embodiment, for example, if it is confirmed that the window of the display module is defective due to a defect, the auxiliary sheet is attached to the window. The planar area of ​​the auxiliary sheet is larger than the planar area of ​​the window. The auxiliary sheet includes an external force applying portion, and an external force can be applied to the display module through the external force applying portion. The auxiliary sheet may include a metal material.

[0046] In the process of cooling the display module having the auxiliary sheet attached thereto (S40), the display module and the auxiliary sheet attached thereto are cooled to a temperature of about -80 degrees Celsius to about -120 degrees Celsius. Cooling the display module having the auxiliary sheet attached thereto cools at least the adhesive layer and the adhesive tape to a temperature of about -80 degrees Celsius to about -120 degrees Celsius. Cooling the display module and the auxiliary sheet attached thereto may cool each of the display panel, the window, the adhesive layer, the adhesive tape, and the auxiliary sheet to a temperature of about -80 degrees Celsius to about -120 degrees Celsius.

[0047] By cooling the display module, the bonding force of the adhesive layer that bonds the display panel and the window to each other is reduced. However, the bonding force of the adhesive tape that bonds the window and the auxiliary sheet to each other is not reduced. In other words, at a temperature of about -80 degrees Celsius to about -120 degrees Celsius, the bonding force of the adhesive tape that bonds the window and the auxiliary sheet to each other is stronger than the bonding force of the adhesive layer that bonds the display panel and the window to each other.

[0048] In the process of separating the display panel and the window (S50), an external force is applied to the external force applying portion of the auxiliary sheet to separate the display panel and the window of the display module from each other. At a temperature of about -80 degrees Celsius to about -120 degrees Celsius, the adhesive force of the adhesive tape that bonds the window and the auxiliary sheet to each other is stronger than the adhesive force of the adhesive layer that bonds the display panel and the window to each other, so that the window and the display panel can be separated from each other. The display panel and the window remain attached to the display panel through the adhesive layer that they are bonded to each other, and the window is separated from both the adhesive layer and the display panel attached to the adhesive layer.

[0049] As described above, in one or more embodiments of the method for disassembling and remanufacturing a display module, the display module can be relatively easily disassembled into independent components of a display panel and a window by using an auxiliary sheet including an external force applying portion, wherein external force can be applied to the display module through the external force applying portion.

[0050] In the process of cleaning the adhesive layer ( S60 ), the adhesive layer remaining attached to the display panel is removed from the display panel.

[0051] In the process of attaching the display panel and the new window ( S70 ), the new window without defects is attached to the display panel from which the adhesive layer has been removed using a new adhesive layer.

[0052] Therefore, a defective window may be separated from a display panel and a new window may be attached to the display panel through one or more embodiments of the method of disassembling and remanufacturing a display module.

[0053] The display module and its components may be disposed in a plane defined by a first direction and a second direction intersecting each other. The thickness of the display module and its components extends along a third direction intersecting each of the first direction and the second direction.

[0054] Will refer to Figures 2 to 8 Embodiments of a method for disassembling and remanufacturing a display module are described.

[0055] Figures 2 to 6 An embodiment of a method for disassembling and remanufacturing a display module is shown.

[0056] Reference Figure 2 and Figure 3 , providing the display module 100. When the display module 100 is found to be defective, the auxiliary sheet 210 is attached to the display module 100, for example, adhered to the display module 100.

[0057] The display module 100 includes a display panel 110, a window 120, and an adhesive layer 130. The display module 100 is provided by bonding the display panel 110 and the window 120 to each other with the adhesive layer 130.

[0058] The display panel 110 displays an image and may include a plurality of transistors, a plurality of light emitting members such as light emitting diodes, and a plurality of signal transmission lines connected to the transistors and the light emitting diodes. Each of the above components may be provided on or in a substrate of the display panel 110. Optionally, a substrate on or in which a plurality of transistors, a plurality of pixel electrodes, and a plurality of signal transmission lines connected to the plurality of transistors and the plurality of pixel electrodes are provided, a substrate on or in which a plurality of color filters and common electrodes are provided, and a light transmission control layer such as a liquid crystal layer interposed between the two substrates may be included in the display panel 110.

[0059] The window 120 protects the display panel 110 displaying an image. The window 120 may include glass or plastic. The plane area of ​​the window 120 is substantially similar to the plane area of ​​the display panel 110. In other words, the distance between the window 120 and the display panel 110 along the respective outer edges of the window 120 or the display panel 110 may be relatively small. Figure 2 In the cross-sectional view shown in , respective outer edges of the window 120 and the display panel 110 are separated from each other along a horizontal direction, which may represent a first direction and / or a second direction crossing the first direction.

[0060] The adhesive layer 130 may include one of an optically clear adhesive ("OCA"), an optically clear resin ("OCR"), and a pressure sensitive adhesive ("PSA").

[0061] After determining that the display module 100 is defective, the auxiliary sheet 210 is attached to the defective component of the display module 100, such as the display panel 110 or the window 120 of the display module 100. Figure 2 As shown in FIG. 1 , for example, if it is confirmed that the defect is in the window 120, the auxiliary sheet 210 is attached to the window 120. The auxiliary sheet 210 is attached to the window 120 with an adhesive tape 220.

[0062] The auxiliary sheet 210 may include a metal material, and a plane area of ​​the auxiliary sheet 210 is larger than a plane area of ​​the window 120. The thickness T of the auxiliary sheet 210 is 1 Greater than the thickness T of the display panel 110 2 and the thickness T of the window 120 3 The auxiliary sheet 210 includes an external force applying portion S, through which an external force can be applied to the display module 100, such as to the window 120. The external force applying portion S is a portion of the auxiliary sheet 210 that does not overlap with the window 120. In other words, the external force applying portion S of the auxiliary sheet 210 is exposed outside the outer edge of the window 120. Figure 3 As shown in FIG. 1 , the external force applying portion S of the auxiliary sheet 210 is exposed outside the outer edge of the display module 100. Figure 3 The external force applying portion S of the auxiliary sheet 210 is shown exposed to the outside of the display module 100 at each outer edge of the display module 100, but the present invention is not limited thereto or thereby. The external force applying portion S of the auxiliary sheet 210 is disposed between the corresponding outer edges of the display module 100 and the auxiliary sheet 210.

[0063] Reference Figure 4 and Figure 5 , after cooling the display module 100 having the auxiliary sheet 210 attached thereto, the display panel 110 and the window 120 are separated from each other.

[0064] The display module 100 having the auxiliary sheet 210 attached thereto is cooled to a temperature of about -80 degrees Celsius to about -120 degrees Celsius. When the display module 100 having the auxiliary sheet 210 attached thereto is cooled, the bonding force of the adhesive layer 130 that bonds the display panel 110 and the window 120 to each other is reduced. However, the bonding force of the adhesive tape 220 that bonds the window 120 and the auxiliary sheet 210 to each other is not reduced. In other words, at a temperature of about -80 degrees Celsius to about -120 degrees Celsius, the bonding force of the adhesive tape 220 is stronger than the bonding force of the adhesive layer 130.

[0065] In the process of separating the display panel 110 and the window 120 from each other, as shown in FIG. Figure 4 As indicated by the arrow in FIG. 1 , an external force is applied to the external force applying portion S of the auxiliary sheet 210 to separate the display panel 110 and the window 120. Figure 4 As shown in , the external force may be in a direction away from the display panel 110 and the adhesive layer 130 .

[0066] Since the adhesive force of the adhesive tape 220 at a temperature of about -80 degrees Celsius to about -120 degrees Celsius is stronger than the adhesive force of the adhesive layer 130 at a temperature of about -80 degrees Celsius to about -120 degrees Celsius, when an external force is applied to the external force applying portion S of the auxiliary sheet 210, the window 120 and the display panel 110 are separated from each other at the interface between the window 120 and the adhesive layer 130. When an external force is applied to the external force applying portion S of the auxiliary sheet 210, the adhesive layer 130 and the window 120 are gradually separated from each other at a portion thereof adjacent to the external force applying portion S of the auxiliary sheet 210. Therefore, the adhesive layer 130 remains attached to the display panel 110, and the window 120 to which the auxiliary sheet 210 is attached is separated from the display panel 110 having the adhesive layer 130 attached thereto.

[0067] Since the plane area of ​​the window 120 is substantially similar to the plane area of ​​the display panel 110, the window 120 has substantially no plane area to which an external force may be applied to separate the window 120 from the display panel 110. Therefore, it may be difficult to separate the window 120 from the display panel 110 by directly applying a force to the window 120. However, in one or more embodiments of the disassembly and remanufacturing method of the display module 100, a defective window 120 may be separated from the display panel 110 by using an auxiliary sheet 210 capable of applying an external force to the window 120. Therefore, the display module 100 may be disassembled into independent components of the display panel 110 and the window 120.

[0068] Reference Figure 6 , the adhesive layer 130 remaining attached to the display panel 110 is removed, for example, by a cleaning process. The removal of the adhesive layer 130 may expose the outer surface of the display panel 110, where a defect-free window may be attached. Figure 6 As shown in , the display panel 110 and a new window 120 a different from the window 120 are attached to each other using a new adhesive layer 130 a different from the adhesive layer 130 .

[0069] As described above, through one or more embodiments of the disassembly and remanufacturing method of the display module 100 , the defective window 120 may be separated from the display panel 110 and the new window 120 a may be attached to the display panel 110 .

[0070] In another embodiment of the disassembly and remanufacturing method of the display module 100, the auxiliary sheet 210 may be attached to the display panel 110 to separate the display panel 110 and the window 120 from each other. Figures 7 to 9 Give a description.

[0071] Figures 7 to 9 A view showing another embodiment of a method for disassembling and remanufacturing a display module.

[0072] Reference Figure 7, providing the display module 100. When the display module 100 is found to be defective, the auxiliary sheet 210 is attached to the display module 100.

[0073] The display module 100 includes a display panel 110, a window 120, and an adhesive layer 130. The display module 100 is provided by bonding the display panel 110 and the window 120 to each other with the adhesive layer 130. A plane area of ​​the window 120 is substantially similar to a plane area of ​​the display panel 110.

[0074] After the defect of the display module 100 is confirmed, the auxiliary sheet 210 is attached to the display panel 110 or the window 120 where the defect occurs. Figure 7 As shown in FIG. 1 , for example, a defect has occurred in the display panel 110, and thus the auxiliary sheet 210 is attached to the display panel 110. The auxiliary sheet 210 is attached with an adhesive tape 220 to the display panel 110 in which the defect is confirmed.

[0075] The auxiliary sheet 210 may include a metal material, and a plane area of ​​the auxiliary sheet 210 is larger than a plane area of ​​the display panel 110. The auxiliary sheet 210 includes an external force applying portion S, and an external force may be applied to the display module 100 at the external force applying portion S. The external force applying portion S is a portion of the auxiliary sheet 210 that does not overlap with the display panel 110.

[0076] Reference Figure 8 , after the display module 100 having the auxiliary sheet 210 attached thereto is cooled, the display panel 110 and the window 120 are separated from each other.

[0077] The display module 100 having the auxiliary sheet 210 attached thereto is cooled to a temperature of about -80 degrees Celsius to about -120 degrees Celsius. When the display module 100 having the auxiliary sheet 210 attached thereto is cooled, the adhesive force of the adhesive layer 130 that bonds the display panel 110 and the window 120 to each other is reduced. However, the adhesive force of the adhesive tape 220 that bonds the display module 100 and the auxiliary sheet 210 to each other is not reduced. In other words, at a temperature of about -80 degrees Celsius to about -120 degrees Celsius, the adhesive force of the adhesive tape 220 is stronger than the adhesive force of the adhesive layer 130.

[0078] When an external force is applied to the external force applying portion S of the auxiliary sheet 210 attached to the display panel 110 , the display panel 110 and the window 120 are separated from each other.

[0079] Since the adhesive force of the adhesive tape 220 at a temperature of about -80 degrees Celsius to about -120 degrees Celsius is stronger than the adhesive force of the adhesive layer 130 at a temperature of about -80 degrees Celsius to about -120 degrees Celsius, when an external force is applied to the external force applying portion S of the auxiliary sheet 210, the window 120 and the display panel 110 are separated from each other. The adhesive layer 130 and the display panel 110 are gradually separated from each other at a portion thereof adjacent to the external force applying portion S of the auxiliary sheet 210. Therefore, the adhesive layer 130 remains attached to the window 120, and the display panel 110 to which the auxiliary sheet 210 is attached is separated from the window 120 having the adhesive layer 130 attached thereto.

[0080] Since the planar area of ​​the display panel 110 is substantially similar to the planar area of ​​the window 120, the display panel 110 has substantially no planar area to which an external force can be applied to separate the display panel 110 from the window 120. Therefore, it may be difficult to separate the display panel 110 from the window 120 by directly applying a force to the display panel 110. However, in one or more embodiments of the method of disassembling and remanufacturing the display module 100, a defective display panel 110 can be separated from the window 120 by using an auxiliary sheet 210 capable of applying an external force to the display panel 110. Therefore, the display module 100 can be disassembled into independent components of the display panel 110 and the window 120.

[0081] Reference Fig. 9 , the adhesive layer 130 remaining attached to the window 120 is removed, for example, by a cleaning process. The removal of the adhesive layer 130 may expose the outer surface of the window 120, where the outer surface of the window 120 may be capable of being attached with a non-defective display panel. Fig. 9 As shown in FIG. 1 , the window 120 and a new display panel 110 a different from the display panel 110 are attached with a new adhesive layer 130 a different from the adhesive layer 130 .

[0082] As described above, through one or more embodiments of the disassembly and remanufacturing method of the display module 100 , the defective display panel 110 may be separated from the window 120 and the new display panel 110 a may be attached to the window 120 .

[0083] While the invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but on the contrary, the invention is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

Claims

1. The disassembly method of the display module includes: attaching an auxiliary sheet to the display module by using an adhesive tape, wherein the display module includes a display panel attached to a window through an adhesive layer, and the auxiliary sheet attached to the display module includes an external force applying portion exposed outside an outer edge of the display module; cooling the display module having the auxiliary sheet attached thereto, cooling the adhesive tape and the adhesive layer to a temperature of -80 degrees Celsius to -120 degrees Celsius respectively, so that the adhesive force of the adhesive tape at the temperature of -80 degrees Celsius to -120 degrees Celsius is stronger than the adhesive force of the adhesive layer at the temperature of -80 degrees Celsius to -120 degrees Celsius; and After cooling the display module having the auxiliary sheet attached to the display module, the display panel and the window are separated from each other by applying a force to the external force applying portion of the auxiliary sheet attached to the display module.

2. The method for disassembling a display module according to claim 1, wherein: Attaching the auxiliary sheet to the display module includes: attaching the auxiliary sheet to the window of the display module by using the adhesive tape, The auxiliary sheet has a planar area that is larger than a planar area of ​​the window to which the auxiliary sheet is attached, and During separation of the display panel and the window from each other, the adhesive layer remains attached to the display panel.

3. The method for disassembling a display module according to claim 1, wherein: Attaching the auxiliary sheet to the display module includes: attaching the auxiliary sheet to the display panel of the display module by using the adhesive tape, The plane area of ​​the auxiliary sheet is larger than the plane area of ​​the display panel to which the auxiliary sheet is attached, and During separation of the display panel and the window from each other, the adhesive layer remains attached to the window.

4. A method for remanufacturing a display module, comprising: providing the display module by attaching a display panel to a window using an adhesive layer; attaching an auxiliary sheet to the display panel or the window of the display module by using an adhesive tape, the auxiliary sheet attached to the display module including an external force applying portion exposed outside an outer edge of the display module; cooling the display module having the auxiliary sheet attached thereto, cooling the adhesive tape and the adhesive layer to a temperature of -80 degrees Celsius to -120 degrees Celsius respectively, so that the adhesive force of the adhesive tape at the temperature of -80 degrees Celsius to -120 degrees Celsius is stronger than the adhesive force of the adhesive layer at the temperature of -80 degrees Celsius to -120 degrees Celsius; After cooling the display module having the auxiliary sheet attached to the display module, separating the display panel and the window from each other by applying a force to the external force applying portion of the auxiliary sheet attached to the display panel or the window; as well as removing the adhesive layer from one of the display panel and the window to which the auxiliary sheet is not attached, The remanufactured display module includes the display panel or the window without the auxiliary sheet attached thereto.

5. The method for remanufacturing a display module according to claim 4, wherein: Attaching the auxiliary sheet to the display panel or the window of the display module includes: attaching the auxiliary sheet to the window by using the adhesive tape, The plane area of ​​the auxiliary sheet is larger than the plane area of ​​the window to which the auxiliary sheet is attached, The adhesive layer remains attached to the display panel during separation of the display panel and the window from each other, and During the process of removing the adhesive layer, the adhesive layer that remains attached to the display panel is removed from the display panel, and the remanufacturing method also includes: after removing the adhesive layer from the display panel, attaching a new window to the display panel from which the adhesive layer has been removed by using a new adhesive layer.

6. The method for remanufacturing a display module according to claim 4, wherein: Attaching the auxiliary sheet to the display panel or the window of the display module includes: attaching the auxiliary sheet to the display panel by using the adhesive tape, The plane area of ​​the auxiliary sheet is larger than the plane area of ​​the display panel to which the auxiliary sheet is attached, The adhesive layer remains attached to the window during separation of the display panel and the window from each other, and During the process of removing the adhesive layer, the adhesive layer remaining attached to the window is removed from the window, and the remanufacturing method further includes: after removing the adhesive layer from the window, attaching a new display panel to the window from which the adhesive layer has been removed by using a new adhesive layer.

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