Display device, method of manufacturing same, and method of repairing same

Abstract

The invention discloses a display device, a method of manufacturing the same, and a method of repairing the same. A method for repairing a display device may include: a step of preparing a display device including a display panel, an anti-reflection layer disposed on the display panel, an adhesive layer disposed on the anti-reflection layer, and a window body disposed on the adhesive layer, the frame of the window body is arranged on the periphery compared with the display panel; a step of removing the window body and the adhesive layer; a step of providing a new adhesive layer on the antireflection layer; and a step of providing a new window on the new adhesive layer, the window being formed by directly coating a first transparent resin on an upper surface of the adhesive layer.

Description

Technical Field

[0001] The present invention relates to a display device, a manufacturing method thereof, and a repair method thereof. Background Art

[0002] Electronic devices such as smartphones, digital cameras, notebook computers, navigation systems, and smart TVs that typically provide images to users include a display device for displaying images. The display device generates images and provides the generated images to the user through a display screen.

[0003] A display device includes a display panel that generates an image and a window disposed on the display panel. The window protects the display panel from external scratches and impacts. When a defect occurs in the window, a process of replacing the window is performed. There is a need for developing a technology to easily remove a defective window from a display device. Summary of the Invention

[0004] An object of the present invention is to provide a display device that is easily repaired and a method for manufacturing the same. Another object of the present invention is to provide a method for repairing a display device that is easily repaired.

[0005] A method for repairing a display device according to an embodiment of the present invention may include: a step of preparing a display device, wherein the display device includes a display panel, an anti-reflection layer arranged on the display panel, an adhesive layer arranged on the anti-reflection layer, and a window arranged on the adhesive layer, wherein the frame of the window is arranged at the periphery compared to the display panel; a step of removing the window and the adhesive layer; a step of providing a new adhesive layer on the anti-reflection layer; and a step of providing a new window on the new adhesive layer, wherein the window is formed by directly applying a first transparent resin on the adhesive layer.

[0006] A display device according to an embodiment of the present invention may include: a display panel; an anti-reflection layer arranged on the display panel; an adhesive layer arranged on the anti-reflection layer; and a window arranged on the adhesive layer, wherein the widths of the window, the adhesive layer and the anti-reflection layer are greater than the width of the display panel, and the window is formed by directly coating a transparent resin on the adhesive layer.

[0007] According to an embodiment of the present invention, a method for manufacturing a display device may include: providing an anti-reflection layer on a display panel; providing an adhesive layer on the anti-reflection layer; directly coating a transparent resin on the adhesive layer; and curing the transparent resin to form a window, wherein the window, the adhesive layer and the anti-reflection layer have a width greater than that of the display panel.

[0008] According to an embodiment of the present invention, an adhesive layer may be disposed on the anti-reflection layer of the display panel, and a window may be disposed on the adhesive layer, with the window being directly applied on the adhesive layer. When the window is applied directly on the adhesive layer, the window can be more easily separated than when the window is applied directly on the anti-reflection layer. As a result, the display device can be repaired more easily. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 is a perspective view of a display device according to an embodiment of the present invention.

[0010] Figure 2 It is shown as an example Figure 1 A diagram showing a cross section of a display device is shown.

[0011] Figure 3 It is shown as an example Figure 2 A diagram showing a cross section of a display panel is shown.

[0012] Figure 4 is a diagram exemplarily showing a cross section of a display panel according to another embodiment of the present invention.

[0013] Figure 5 yes Figure 2 A plan view of the display panel is shown.

[0014] Figures 6a to 6e 1 and 2 are diagrams for explaining a method for manufacturing a display device according to an embodiment of the present invention.

[0015] Figures 7a to 7f 1 and 2 are diagrams for explaining a method for repairing a display device according to an embodiment of the present invention.

[0016] Figures 8a to 8d FIG. 1 is a diagram for explaining a method for repairing a display device according to another embodiment of the present invention.

[0017] Figure 9a as well as Figure 9b A diagram for explaining a window removal process of a comparative display device.

[0018] Figures 10a to 10e FIG. 1 is a diagram for explaining a method for repairing a display device according to another embodiment of the present invention.

[0019] (Explanation of Reference Numerals)

[0020] DD: Display device DP: Display panel

[0021] RPL: Anti-reflection layer AL: Adhesive layer

[0022] WIN: Window RIN: Transparent resin

[0023] BM: Light-shielding layer N_AL: New adhesive layer

[0024] N_WIN: New window N_RPL: New anti-reflection layer

[0025] RM: Removal DETAILED DESCRIPTION

[0026] In this specification, when any component (or region, layer, part, etc.) is mentioned as being "on" other components, "connected" or "combined with" other components, it means that it can be directly configured / connected / combined with other components or a third component can be configured between them.

[0027] The same reference numerals refer to the same components. In addition, in the drawings, the thickness, proportions, and sizes of the components are exaggerated for the purpose of effectively explaining the technical content.

[0028] “And / or” includes all combinations of more than one possible definition of the associated structures.

[0029] Terms such as "first" and "second" can be used to describe various constituent elements, but these constituent elements are not limited by these terms. These terms are used solely to distinguish one constituent element from other constituent elements. For example, without departing from the scope of the present invention, the first constituent element can be named the second constituent element, and similarly, the second constituent element can be named the first constituent element. Unless the context clearly indicates otherwise, a singular expression includes a plural expression.

[0030] In addition, terms such as “below,” “lower side,” “above,” and “upper side” are used to explain the relationship between the structures shown in the drawings. These terms are relative concepts and are explained based on the directions shown in the drawings.

[0031] Unless otherwise defined, all terms (including technical and scientific terms) used in this specification have the same meanings as those commonly understood by those skilled in the art to which the present invention pertains. Furthermore, terms that are the same as those defined in commonly used dictionaries should be interpreted as having the same meanings as those in the context of the relevant art and should not be interpreted as idealized or overly formal unless expressly defined herein.

[0032] Terms such as "including" or "having" should be understood as specifying the existence of features, numbers, steps, tasks, constituent elements, accessories or combinations thereof recorded in the specification, and do not preclude the existence or additional possibility of one or more other features or numbers, steps, tasks, constituent elements, accessories or combinations thereof.

[0033] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

[0034] Figure 1 is a perspective view of a display device according to an embodiment of the present invention.

[0035] Reference Figure 1 The display device DD according to an embodiment of the present invention may have a rectangular shape having long sides extending in a first direction DR1 and short sides extending in a second direction DR2 intersecting the first direction DR1. However, the display device DD is not limited thereto and may have various shapes such as a circular or polygonal shape.

[0036] Hereinafter, a direction substantially perpendicular to a plane defined by the first direction DR1 and the second direction DR2 is defined as a third direction DR3. In addition, in this specification, when viewed from a plane is defined as a state observed in the third direction DR3.

[0037] The upper surface of the display device DD may be defined as a display surface DS and may have a plane defined by a first direction DR1 and a second direction DR2. An image IM generated by the display device DD may be provided to a user through the display surface DS.

[0038] The display surface DS may include a display area DA and a non-display area NDA surrounding the display area DA. The display area DA may display an image, while the non-display area NDA may not. The non-display area NDA may surround the display area DA and define a frame of the display device DD printed in a predetermined color.

[0039] The display device DD can be used in large electronic devices such as televisions, monitors, and outdoor billboards. Furthermore, the display device DD can also be used in small or medium-sized electronic devices such as personal computers, notebook computers, personal digital assistants, car navigation systems, game consoles, smartphones, tablet computers, and cameras. However, these are merely exemplary embodiments, and the display device DD can also be used in other electronic devices without departing from the scope of the present invention.

[0040] Figure 2 It is shown as an example Figure 1 A diagram showing a cross section of a display device is shown.

[0041] For example, in Figure 2 A cross section of the display device DD viewed in a first direction DR1 is shown.

[0042] Reference Figure 2The display device DD may include a display panel DP, an input sensing portion ISP, an anti-reflection layer RPL, a window WIN, a light shielding layer BM, a cover panel C-PN, first and second adhesive layers AL1 and AL2, and an adhesive layer AL.

[0043] The input sensing portion ISP, the anti-reflection layer RPL, the window WIN, and the light shielding layer BM may be disposed on the display panel DP, and the cover panel C-PN may be disposed under the display panel DP.

[0044] The display panel DP may include a display area DA and a non-display area NDA around the display area DA. The display area DA and the non-display area NDA may be Figure 1 The display area DA and the non-display area NDA shown correspond to each other.

[0045] According to an embodiment of the present invention, the display panel DP may be a light-emitting display panel. For example, the display panel DP may be an organic light-emitting display panel or an inorganic light-emitting display panel. The light-emitting layer of an organic light-emitting display panel may include an organic light-emitting substance. The light-emitting layer of an inorganic light-emitting display panel may include quantum dots, quantum rods, and the like. Hereinafter, the display panel DP is described as an organic light-emitting display panel.

[0046] The input sensing portion ISP may be disposed on the display panel DP. The input sensing portion ISP may include multiple sensing portions (not shown) for capacitively sensing external input. The input sensing portion ISP may be directly fabricated on the display panel DP during the manufacture of the display device DD. However, this is not limiting. The input sensing portion ISP may be fabricated as a separate panel from the display panel DP and attached to the display panel DP via an adhesive layer.

[0047] An anti-reflection layer (RPL) may be disposed on the input sensor portion ISP. The anti-reflection layer (RPL) can be defined as an external light anti-reflection film. When external light traveling toward the display panel DP is reflected from the display panel DP and re-reflected toward the user, the user can perceive the external light, similar to a mirror. The anti-reflection layer (RPL) reduces the reflectivity of external light incident from above the display device DD toward the display panel DP, preventing the user from perceiving the external light.

[0048] Exemplarily, the anti-reflection layer RPL may include a phase retarder and / or a polarizer. However, without limitation thereto, the anti-reflection layer RPL may include a plurality of color filters that display the same color as the pixels of the display panel DP. The color filters may filter external light to the same color as the pixels. In this case, the external light may not be recognized by the user.

[0049] The window WIN may be disposed on the anti-reflection layer RPL, and may protect the display panel DP, the input sensing portion ISP, and the anti-reflection layer RPL from external scratches and impacts.

[0050] The light shielding layer BM may be disposed on the bottom surface of the window WIN. The light shielding layer BM may be adjacent to the frame of the window WIN and, when viewed from a planar perspective, overlap the non-display area NDA. The light shielding layer BM may be disposed in a groove GV defined below the window WIN adjacent to the frame of the window WIN.

[0051] The cover panel C-PN may protect the lower portion of the display panel DP from external scratches, and may also absorb external impact applied to the display panel DP from below the display panel DP to protect the display panel DP.

[0052] Although not shown, the cover panel C-PN may include a panel protection film disposed under the display panel DP to protect the lower portion of the display panel DP, and a buffer layer disposed under the panel protection film to absorb external impact. The panel protection film may include a flexible plastic material such as polyethylene terephthalate (PET). The buffer layer may include a foam sheet having a predetermined elastic force.

[0053] The first adhesive layer AL1 may be disposed between the input sensing part ISP and the anti-reflection layer RPL. The input sensing part ISP and the anti-reflection layer RPL may be adhered to each other through the first adhesive layer AL1.

[0054] The second adhesive layer AL2 may be disposed between the display panel DP and the cover panel C-PN. The display panel DP and the cover panel C-PN may be adhered to each other through the second adhesive layer AL2.

[0055] An adhesive layer AL may be disposed on the anti-reflection layer RPL, and the window WIN may be disposed on the adhesive layer AL. The adhesive layer AL may be disposed between the anti-reflection layer RPL and the window WIN to bond the anti-reflection layer RPL and the window WIN together. A light shielding layer BM may be disposed between the adhesive layer AL and the window WIN.

[0056] The adhesive layer AL and the first and second adhesive layers AL1 and AL2 may include a pressure sensitive adhesive (PSA) or an optically clear adhesive (OCA), but the type of the adhesive is not limited thereto.

[0057] The widths of the window WIN, the anti-reflection layer RPL, and the adhesive layer AL may be greater than the width of the display panel DP. In this specification, "width" may be defined as a value measured in a horizontal direction (e.g., the first direction DR1 or the second direction DR2). The window WIN, the anti-reflection layer RPL, and the adhesive layer AL may have the same width.

[0058] The frame of the window WIN, the frame of the anti-reflection layer RPL, and the frame of the adhesive layer AL may be arranged at the periphery of the display panel DP. That is, the frame of the window WIN, the frame of the anti-reflection layer RPL, and the frame of the adhesive layer AL may be arranged at the periphery of the frame of the display panel DP. When viewed from a planar perspective, the frame of the window WIN, the frame of the anti-reflection layer RPL, and the frame of the adhesive layer AL may overlap with each other.

[0059] The width of the window WIN, the anti-reflection layer RPL, and the adhesive layer AL can be greater than the width of the input sensor portion ISP, the cover panel C-PN, and the first and second adhesive layers AL1 and AL2. The frame of the window WIN, the anti-reflection layer RPL, and the adhesive layer AL can be arranged at the periphery of the frame of the input sensor portion ISP, the cover panel C-PN, and the first and second adhesive layers AL1 and AL2.

[0060] The light shielding layer BM can be directly coated on the adhesive layer AL. The window WIN can be formed by coating a transparent resin directly on the adhesive layer AL instead of providing it in the form of a film. Such a structure will refer to the following Figures 6a to 6e Explain in detail.

[0061] Figure 3 It is shown as an example Figure 2 A diagram showing a cross section of a display panel is shown.

[0062] For example, in Figure 3 A cross section of the display panel DP viewed in the first direction DR1 is shown, and the input sensing part ISP is shown together with the display panel DP.

[0063] Reference Figure 3 The display panel DP may include a substrate SUB, a circuit element layer DP-CL, a display element layer DP-OLED, an encapsulation substrate EN-SB, a sealing layer SAL, and a filler material FL. The circuit element layer DP-CL may be disposed on the substrate SUB. The display element layer DP-OLED may be disposed on the circuit element layer DP-CL.

[0064] A plurality of pixels may be arranged in the circuit element layer DP-CL and the display element layer DP-OLED. Each pixel may include a transistor arranged in the circuit element layer DP-CL and a light emitting element arranged in the display element layer DP-OLED and connected to the transistor.

[0065] The substrate SUB may include a display area DA and a non-display area NDA surrounding the display area DA. The display element layer DP-OLED may be disposed on the display area DA. An encapsulation substrate EN-SB may be disposed on the display element layer DP-OLED. The substrate SUB and the encapsulation substrate EN-SB may be rigid. With this structure, the display panel DP may be rigid.

[0066] A sealing layer SAL may be disposed between the substrate SUB and the encapsulation substrate EN-SB. The sealing layer SAL may be disposed on the non-display area NDA. The sealing layer SAL provides adhesion between the substrate SUB and the encapsulation substrate EN-SB. The display element layer DP-OLED may be sealed between the substrate SUB and the encapsulation substrate EN-SB via the sealing layer SAL. The sealing layer SAL may include a photocurable material.

[0067] The filling material FL may be disposed between the substrate SUB and the encapsulation substrate EN-SB. The filling material FL may be disposed in the space sealed by the sealing layer SAL between the substrate SUB and the encapsulation substrate EN-SB. The filling material FL may include a thermosetting substance.

[0068] The input sensing portion ISP may be directly disposed on the display panel DP. For example, the input sensing portion ISP may be directly disposed on the packaging substrate EN-SB.

[0069] Figure 4 is a diagram exemplarily showing a cross section of a display panel according to another embodiment of the present invention.

[0070] For example, in Figure 4 The intermediate input sensing part ISP' is shown together with the display panel DP'.

[0071] Reference Figure 4 The display panel DP' may include a circuit element layer DP-CL configured on a substrate SUB, a display element layer DP-OLED configured on the circuit element layer DP-CL, and a thin film encapsulation layer TFE configured on the display element layer DP-OLED.

[0072] The display panel DP' may be a flexible display panel. For example, the substrate SUB may include a flexible plastic material such as polyimide. The configuration structure of the circuit element layer DP-CL and the display element layer DP-OLED may be the same as Figure 3The circuit element layer DP-CL and the display element layer DP-OLED shown are identical.

[0073] A thin film encapsulation layer (TFE) can be disposed on the circuit element layer (DP-CL) so as to cover the display element layer (DP-OLED). The TFE can include an inorganic layer and an organic layer between the inorganic layers. The inorganic layer protects the pixels from moisture and oxygen, while the organic layer protects the pixels from foreign matter such as dust particles.

[0074] The input sensing portion ISP' can be directly configured on the display panel DP'. For example, the input sensing portion ISP' can be directly configured on the thin film encapsulation layer TFE. The structure of the input sensing portion ISP' can be substantially the same as that of the display panel DP'. Figure 3 The input sensing section ISP shown is the same.

[0075] Figure 5 yes Figure 2 A plan view of the display panel is shown.

[0076] Reference Figure 5 The display device DD may include a display panel DP, a scan driver SDV (scan driver), a data driver DDV (data driver), a light emission driver EDV (light emission driver) and a plurality of pads PD.

[0077] The display panel DP may have a rectangular shape having long sides extending in the first direction DR1 and short sides extending in the second direction DR2, but the shape of the display panel DP is not limited thereto. The display panel DP may include a display area DA and a non-display area NDA surrounding the display area DA.

[0078] The display panel DP may include a plurality of pixels PX, a plurality of scan lines SL1-SLm, a plurality of data lines DL1-DLn, a plurality of light emitting lines EL1-ELm, first and second control lines CSL1 and CSL2, first and second power lines PL1 and PL2, and a connection line CNL. m and n are natural numbers.

[0079] The pixels PX may be arranged in the display area DA. The scan driver SDV and the light driver EDV may be arranged in the non-display area NDA adjacent to the long sides of the display panel DP. The data driver DDV may be arranged in the non-display area NDA adjacent to any of the short sides of the display panel DP. When viewed from a planar perspective, the data driver DDV may be adjacent to the lower end of the display panel DP.

[0080] Scan lines SL1-SLm may extend in the second direction DR2 and connect to pixels PX and a scan driver SDV. Data lines DL1-DLn may extend in the first direction DR1 and connect to pixels PX and a data driver DDV. Light-emitting lines EL1-ELm may extend in the second direction DR2 and connect to pixels PX and a light-emitting driver EDV.

[0081] The first power line PL1 may extend in the first direction DR1 and be disposed in the non-display area NDA. The first power line PL1 may be disposed between the display area DA and the light emitting driving part EDV.

[0082] The connection line CNL may extend in the second direction DR2 and be aligned in the first direction DR1 to connect to the first power line PL1 and the pixel PX. A first voltage may be applied to the pixel PX through the first power line PL1 and the connection line CNL connected to each other.

[0083] The second power line PL2 may be disposed in the non-display area NDA and extend along the long side of the display panel DP and the other short side of the display panel DP where the data driver DDV is not disposed. The second power line PL2 may be disposed peripherally relative to the scan driver SDV and the light driver EDV.

[0084] Although not shown, the second power line PL2 may extend toward the display area DA to be connected to the pixel PX. A second voltage having a level lower than the first voltage may be applied to the pixel PX through the second power line PL2.

[0085] The first control line CSL1 may be connected to the scan driver SDV and extend toward the lower end of the display panel DP. The second control line CSL2 may be connected to the light emitting driver EDV and extend toward the lower end of the display panel DP. The data driver DDV may be disposed between the first control line CSL1 and the second control line CSL2.

[0086] The pad PD may be located in the non-display area NDA adjacent to the lower end of the display panel DP and closer to the lower end of the display panel DP than the data driver DDV. The data driver DDV, first and second power lines PL1 and PL2, and first and second control lines CSL1 and CSL2 may be connected to the pad PD. Alternatively, the data lines DL1 to DLn may be connected to the data driver DDV, which in turn may be connected to the pads PD corresponding to the data lines DL1 to DLn.

[0087] Although not shown, the display device DD may further include a timing controller for controlling the operation of the scan driver SDV, the data driver DDV, and the light driver EDV, and a voltage generator for generating the first and second voltages. The timing controller and the voltage generator may be mounted on a printed circuit board and connected to the pad PD via the printed circuit board.

[0088] Alternatively, the scan driver SDV generates a plurality of scan signals, which are applied to the pixels PX via the scan lines SL1 to SLm. Alternatively, the data driver DDV generates a plurality of data voltages, which are applied to the pixels PX via the data lines DL1 to DLn. Alternatively, the light driver EDV generates a plurality of light-emitting signals, which are applied to the pixels PX via the light-emitting lines EL1 to Elm.

[0089] The pixel PX may receive a data voltage in response to a scan signal, and may emit light having a brightness corresponding to the data voltage in response to a light emitting signal to display an image.

[0090] Figures 6a to 6e 1 and 2 are diagrams for explaining a method for manufacturing a display device according to an embodiment of the present invention.

[0091] For example, Figures 6a to 6e Zoomed in to show Figure 2 The right side of the display device DD is shown.

[0092] Reference Figure 6a An anti-reflection layer RPL may be provided on the display panel DP. Specifically, the anti-reflection layer RPL may be provided on the first adhesive layer AL1 on the input sensing portion ISP. The anti-reflection layer RPL may be attached to the input sensing portion ISP via the first adhesive layer AL1 and thus be bonded to the input sensing portion ISP.

[0093] As mentioned above, the anti-reflection layer RPL may have a width greater than that of the display panel DP, and the frame of the anti-reflection layer RPL is disposed at the periphery of the frame of the display panel DP. The reason for this will be described in detail below.

[0094] Reference Figure 6b , an adhesive layer AL having the same width as the anti-reflection layer RPL may be provided on the anti-reflection layer RPL. When viewed from a planar perspective, the adhesive layer AL may entirely overlap the anti-reflection layer RPL. Therefore, as described above, the frame of the adhesive layer AL may be arranged at the periphery of the frame of the display panel DP.

[0095] Reference Figure 6cA light shielding layer BM may be provided on the adhesive layer AL. The light shielding layer BM may be adjacent to the frame of the adhesive layer AL and, when viewed from a planar perspective, overlap the non-display area NDA. The light shielding layer BM may be formed by directly coating a black resin on the adhesive layer AL and curing the coated resin.

[0096] Reference Figure 6d The transparent resin RIN discharged from the nozzle NZ can be directly applied on the adhesive layer AL. The transparent resin RIN can also be directly applied on the light shielding layer BM. Figure 2 ) is defined as the first transparent resin RIN1.

[0097] For example, the first transparent resin RIN1 may include epoxy resin, but is not limited thereto and may include various resins as long as they are transparent.

[0098] Reference Figure 6d as well as Figure 6e The first transparent resin RIN1 directly coated on the adhesive layer AL can be cured to form the window WIN. That is, the window WIN can be formed by coating directly on the adhesive layer AL. This process can be defined as a coating process. The first transparent resin RIN1 is entirely coated on the anti-reflection layer RPL, so the frame of the window WIN can be arranged at the periphery of the frame of the display panel DP.

[0099] To fully protect the input sensor unit ISP and the display panel DP, the window WIN may have a width greater than the input sensor unit ISP and the display panel DP, and may need to cover the entirety of the input sensor unit ISP and the display panel DP. Therefore, the window WIN may be formed to have a width greater than the input sensor unit ISP and the display panel DP, so that the frame of the window WIN is positioned farther outward than the frames of the input sensor unit ISP and the display panel DP.

[0100] The area for applying the fluid first transparent resin RIN1 can be defined by the anti-reflection layer RPL. For example, to form the window WIN with a width greater than the display panel DP, the first transparent resin RIN1 needs to be applied to an area greater than the display panel DP. In other words, a structure with an area greater than the display panel DP and supporting the first transparent resin RIN1 is required.

[0101] The anti-reflection layer RPL can be defined to have a width greater than that of the display panel DP and provided on the display panel DP, thereby forming an area for applying the first transparent resin RIN1. The first transparent resin RIN1 can be provided on the anti-reflection layer RPL having a width greater than that of the display panel DP and supported by the anti-reflection layer RPL. Therefore, the first transparent resin RIN1 can be applied to an area greater than the display panel DP.

[0102] The adhesive layer AL may also be supported by the anti-reflection layer RPL and provided on the anti-reflection layer RPL to be entirely overlapped with the anti-reflection layer RPL. Therefore, the adhesive layer AL may also be provided on the anti-reflection layer RPL to have a width greater than that of the display panel DP.

[0103] Figures 7a to 7f 1 and 2 are diagrams for explaining a method for repairing a display device according to an embodiment of the present invention.

[0104] For example, Figures 7a to 7f Shown as Figures 6a to 6e The corresponding cross section.

[0105] Reference Figure 7a , a display device DD can be prepared. The display device DD is a defective display device DD that requires repair, and the window WIN may be defective. For example, when a scratch or crack occurs on the window WIN, a process for replacing the window WIN from the display device DD may be required. Such a repair process for the display device DD can be defined as a rework process.

[0106] A portion of the anti-reflection layer RPL disposed at a periphery of the display panel DP and a portion of the adhesive layer AL disposed at a periphery of the display panel DP may be defined as a removal portion RM.

[0107] Reference Figure 7a as well as Figure 7b , the laser beam LB may be irradiated toward the removal portion RM. The removal portion RM may be removed by the laser beam LB. The laser beam LB may be irradiated toward the removal portion RM from below the removal portion RM. Although not shown, a laser for generating the laser beam LB may be disposed below the removal portion RM.

[0108] Such a removal process of the removal portion RM can be carried out in the following manner. Figure 7c The window WIN and adhesive layer AL removal process described above is performed before the repair process. With the removal portion RM removed, the anti-reflection layer RPL and adhesive layer AL can be deformed to have the same width as the display panel DP during the repair process. Therefore, the anti-reflection layer RPL and adhesive layer AL do not protrude toward the periphery of the display panel DP.

[0109] When the portion of the adhesive layer AL disposed at the periphery of the display panel DP is removed, the portion of the light shielding layer BM disposed at the periphery of the display panel DP may be exposed to the outside. For example, the lower portion of the portion of the light shielding layer BM disposed at the periphery of the display panel DP may be exposed to the outside.

[0110] Reference Figure 7c When the window WIN and the adhesive layer AL are removed, the display device DD can be cooled. For example, a cooling device (not shown) can be used to supply cold air C to the display device DD, thereby cooling the display device DD to a sub-zero temperature. For example, the sub-zero temperature can be below zero degrees and greater than or equal to -200 degrees Celsius. The adhesive force of the adhesive layer AL can be reduced at sub-zero temperatures.

[0111] The window WIN, the light shielding layer BM, and the adhesive layer AL can be removed from the display device DD. The window WIN can be removed from the frame of the window WIN that protrudes toward the periphery compared to the display panel DP. By removing the aforementioned removal portion RM, only the frame of the window WIN can protrude outward.

[0112] The frame of the window WIN protruding toward the periphery can be easily clamped by a clamping device (not shown) to remove the window WIN from the display device DD. The anti-reflection layer RPL that does not need to be removed does not need to be clamped, so the removal portion RM can be removed, so that the anti-reflection layer RPL does not protrude toward the periphery of the display panel DP.

[0113] The bonding force between the window WIN, which is directly coated on the adhesive layer AL, and the adhesive layer AL can be greater than the bonding force between the anti-reflection layer RPL and the adhesive layer AL. Furthermore, the bonding force of the adhesive layer AL decreases at sub-zero temperatures, and thus the bonding force of the adhesive layer AL with respect to the anti-reflection layer RPL can be reduced. Therefore, when removing the window WIN, the adhesive layer AL, which is more strongly bonded to the window WIN, can separate from the anti-reflection layer RPL and be removed together with the window WIN.

[0114] Reference Figure 7d After removing the window WIN and the adhesive layer AL, a residue RS of the adhesive layer AL may remain on the anti-reflection layer RPL. The residue RS of the adhesive layer AL can be removed by a cleaning liquid CL. For example, the cleaning liquid CL may include ethanol, but is not limited thereto and may include various substances.

[0115] Reference Figure 7e, a new adhesive layer N_AL may be provided on the anti-reflection layer RPL, and a new window N_WIN may be provided on the new adhesive layer N_AL. The new adhesive layer N_AL may have the same width as the display panel DP and, when viewed from a planar perspective, entirely overlap the display panel DP. The new window N_WIN may have a width greater than that of the display panel DP, with a frame of the new window N_WIN disposed at a periphery of the display panel DP.

[0116] The new adhesive layer N_AL can be formed by the aforementioned adhesive layer AL (refer to Figure 7a ) is formed of the same material. The new window N_WIN can be manufactured in the form of a film and provided on the anti-reflection layer RPL. The aforementioned window WIN (refer to Figure 6e ) The first transparent resin RIN1 (refer to Figure 6d ) is coated on the adhesive layer AL, but the new window N_WIN can be provided on the new adhesive layer N_AL in the form of a film.

[0117] A new light shielding layer N_BM can be disposed under the new window N_WIN. The new light shielding layer N_BM can be directly coated under the new window N_WIN. The new light shielding layer N_BM can be made of the same material as the aforementioned light shielding layer BM (see Figure 6c The position of the new light shielding layer N_BM can be the same as that of the aforementioned light shielding layer BM.

[0118] Reference Figure 7f The new window N_WIN and the new light shielding layer N_BM can be attached to the anti-reflection layer RPL through the new adhesive layer N_AL. According to such a repair process, a reworked display device DD-1 can be manufactured.

[0119] Figures 8a to 8d FIG. 1 is a diagram for explaining a method for repairing a display device according to another embodiment of the present invention.

[0120] For example, Figures 8a to 8d Shown as Figures 6a to 6e The corresponding cross section.

[0121] In a display device DD according to another embodiment of the present invention (refer to Figure 7a ) in the repair method, the process of removing the window WIN, the light shielding layer BM and the adhesive layer AL can be the same as the above-mentioned Figures 7a to 7d The repair method of the display device DD shown is the same. Figure 8a In, as Figure 7e The corresponding cross-sectional structure shows the anti-reflection layer RPL with the removal portion RM removed and the display panel DP under the anti-reflection layer RPL.

[0122] Reference Figure 8a, a new adhesive layer N_AL may be provided on the anti-reflection layer RPL, and a supporting film SFM may be provided on the new adhesive layer N_AL. For example, the supporting film SFM may include a plastic material such as polyethylene terephthalate (PET).

[0123] The new bonding layer N_AL may have Figure 7e The supporting film SFM may have the same structure as the new adhesive layer N_AL shown. The supporting film SFM may have a width greater than that of the display panel DP. The frame of the supporting film SFM may be arranged at the periphery of the frame of the display panel DP. The frame of the supporting film SFM may be arranged at the periphery of the frame of the new adhesive layer N_AL.

[0124] Reference Figure 8b The supporting film SFM can be attached to the anti-reflection layer RPL through the new adhesive layer N_AL. The new light shielding layer N_BM can be provided on the supporting film SFM. The new light shielding layer N_BM can be directly coated on the supporting film SFM. The new light shielding layer N_BM can have the same Figure 7e The new light shielding layer N_BM shown has the same structure.

[0125] Reference Figure 8c The second transparent resin RIN2 discharged from the nozzle NZ can be directly coated on the support film SFM. The second transparent resin RIN2 can also be directly coated on the new light shielding layer N_BM. The second transparent resin RIN2 can include the same material as the first transparent resin RIN1.

[0126] Reference Figure 8c as well as Figure 8d The second transparent resin RIN2 can be cured to form a new window N_WIN'. Specifically, the new window N_WIN' can be formed by directly applying the second transparent resin RIN2 to the support film SFM. Since the second transparent resin RIN2 is entirely applied to the support film SFM, the frame of the new window N_WIN' can be positioned farther outward from the frame of the display panel DP.

[0127] The area for coating the second transparent resin RIN2 having fluidity may be defined by the supporting film SFM. The supporting film SFM may be defined to have a width greater than the display panel DP and provided on the display panel DP, thereby being used for coating the area of the second transparent resin RIN2.

[0128] The second transparent resin RIN2 may be provided on the supporting film SFM having a width greater than the display panel DP and supported by the supporting film SFM. Therefore, the second transparent resin RIN2 may be applied to an area greater than the display panel DP.

[0129] As a result, a new window N_WIN' having a width greater than that of the display panel DP may be formed. According to such a repair process, a reworked display device DD-2 may be manufactured.

[0130] Reference Figures 8a to 8d ,and Figure 7e as well as Figure 7f Similarly, a new adhesive layer N_AL may be provided on the anti-reflection layer RPL, and a new window N_WIN' may be provided on the new adhesive layer N_AL. Figure 7e as well as Figure 7f Differently, in Figures 8a to 8d In the illustrated process, in order to form a new window N_WIN′ by the coating process, a region where the second transparent resin RIN2 is provided may be defined and a supporting film SFM for supporting the second transparent resin RIN2 may be used.

[0131] Figure 9a as well as Figure 9b A diagram for explaining a window removal process of a comparative display device.

[0132] Reference Figure 9a The comparative display device DD' may not include the aforementioned adhesive layer AL (refer to Figure 6e ). The WIN form can be opened by Figure 6d as well as Figure 6e The coating process shown is directly applied on the anti-reflection layer RPL. The bonding force between the window WIN directly coated on the anti-reflection layer RPL and the anti-reflection layer RPL can be greater than the bonding force between the anti-reflection layer RPL and the first adhesive layer AL1.

[0133] Reference Figure 9b When the window WIN is a defect, only the window WIN needs to be removed. However, the anti-reflection layer RPL, which is more strongly bonded to the window WIN, can be removed from the display device DD' together with the window WIN. Therefore, the normal anti-reflection layer RPL, which is not a defect, can be removed.

[0134] Refer to the aforementioned Figures 7a to 8d , an adhesive layer AL can be placed between the window WIN and the anti-reflection layer RPL, without directly applying the window WIN to the anti-reflection layer RPL. Therefore, the adhesive layer AL and the window WIN can be easily removed from the display device DD. Furthermore, during repair, only the window WIN protrudes toward the periphery of the display panel DP, making it easy to remove the window WIN by gripping.

[0135] Therefore, through the repair method of the display device DD according to the embodiment of the present invention, the display device DD can be easily repaired.

[0136] Figures 10a to 10eFIG. 1 is a diagram for explaining a method for repairing a display device according to another embodiment of the present invention.

[0137] For example, Figures 10a to 10e Shown as Figures 6a to 6e The following will be based on the corresponding cross section. Figures 7a to 8d The repair methods shown are different methods based on the instructions Figures 10a to 10e Repair method shown.

[0138] Reference Figure 10a , a display device DD may be prepared. As the display device DD is a defective display device DD requiring repair, the window WIN and the anti-reflection layer RPL may be defective.

[0139] The display device DD may be cooled to a sub-zero temperature by supplying cool air C to the display device DD through a cooling device (not shown). The adhesive force of the first adhesive layer AL1 may be reduced at sub-zero temperatures.

[0140] The protruding frame of the window WIN and the frame of the anti-reflection layer RPL can be easily clamped by a clamping device (not shown), so that the window WIN and the anti-reflection layer RPL are removed from the display device DD. In addition, the light shielding layer BM, the adhesive layer AL, and the first adhesive layer AL1 can be removed together with the window WIN and the anti-reflection layer RPL.

[0141] Reference Figure 10b , a residue RS1 of the first adhesive layer AL1 may remain on the input sensing portion ISP. The residue RS1 of the first adhesive layer AL1 may be removed by a cleaning liquid CL.

[0142] Reference Figure 10c , a first new adhesive layer N_AL1 may be provided on the input sensing part ISP, and a new anti-reflection layer N_RPL may be provided on the first new adhesive layer N_AL1. That is, after removing the defective anti-reflection layer RPL, a new anti-reflection layer N_RPL may be provided on the display panel DP.

[0143] The new anti-reflection layer N_RPL can essentially have Figure 6c Therefore, the new anti-reflection layer N_RPL may have a width greater than that of the display panel DP, and the frame of the new anti-reflection layer N_RPL may be arranged at the periphery of the frame of the display panel DP.

[0144] Alternatively, a new adhesive layer N_AL' may be provided on the new anti-reflection layer N_RPL, and a new light shielding layer N_BM may be provided on the new adhesive layer N_AL'. The new adhesive layer N_AL' may have the same Figure 6c The adhesive layer AL shown has the same structure.

[0145] Reference Figure 10d as well as Figure 10e The second transparent resin RIN2 can be directly coated on the new adhesive layer N_AL'. The second transparent resin RIN2 can also be directly coated on the new light shielding layer N_BM.

[0146] The second transparent resin RIN2 can be cured to form a new window N_WIN'. That is, the new window N_WIN' can be formed by directly coating the second transparent resin RIN2 on the new adhesive layer N_AL'. The new window N_WIN' can have the same Figure 7e The same structure as the form WIN shown.

[0147] The area for applying the fluid second transparent resin RIN2 can be defined by the new anti-reflection layer N_RPL. The second transparent resin RIN2 can be provided on the new anti-reflection layer N_RPL having a width greater than that of the display panel DP and supported by the new anti-reflection layer N_RPL. Therefore, the second transparent resin RIN2 can be applied to an area greater than the display panel DP.

[0148] As a result, a new window N_WIN' having a width greater than that of the display panel DP may be formed. According to such a repair process, a reworked display device DD-3 may be manufactured.

[0149] The above description is based on the embodiments. However, those skilled in the art will understand that various modifications and changes can be made to the present invention without departing from the concept and scope of the present invention as described in the appended claims. In addition, the embodiments disclosed in the present invention are not intended to limit the technical concept of the present invention. All technical concepts within the scope of the appended claims and their equivalents should be interpreted as included in the scope of the present invention.

Claims

1. A method for repairing a display device, wherein: include: The step of preparing a display device, the display device comprising a display panel, an anti-reflection layer disposed on the display panel, an adhesive layer disposed on the anti-reflection layer, and a window disposed on the adhesive layer, wherein a frame of the window is disposed at a periphery of the display panel; a step of removing the window and the adhesive layer; a step of providing a new adhesive layer on the anti-reflective layer; as well as the step of providing a new window on said new adhesive layer, The window is formed by directly coating the first transparent resin on the adhesive layer.

2. The display device repair method according to claim 1, wherein: The frame is removed from the frame border.

3. The display device repair method according to claim 1, wherein: The display device repair method further includes: When removing the window and the adhesive layer, the display device is cooled to a sub-zero temperature.

4. The display device repair method according to claim 3, wherein: The subzero temperature is lower than 0 degrees and higher than or equal to -200 degrees.

5. The display device repair method according to claim 1, wherein: The frame of the adhesive layer and the frame of the anti-reflection layer are arranged at the periphery of the display panel.

6. The display device repair method according to claim 5, wherein: The display panel includes a display area and a non-display area around the display area. The display device further includes: a light shielding layer, which is disposed between the adhesive layer and the window and is adjacent to the frame of the window. The light shielding layer overlaps with the non-display area.

7. The display device repair method according to claim 6, wherein: The display device repair method further includes: Before removing the window and the adhesive layer, a step of removing a portion of the anti-reflection layer and a portion of the adhesive layer that are arranged at the periphery of the display panel.

8. The display device repair method according to claim 7, wherein: The portion of the anti-reflection layer and the portion of the adhesive layer are removed by a laser beam.

9. The display device repair method according to claim 7, wherein: When the portion of the adhesive layer is removed, a lower portion of the portion of the light shielding layer disposed at a periphery relative to the display panel is exposed to the outside.

10. The display device repair method according to claim 1, wherein: The display device repair method further includes: After removing the adhesive layer, removing residues of the adhesive layer remaining on the anti-reflection layer.

11. The display device repair method according to claim 10, wherein: The residue of the adhesive layer is removed by a cleaning solution.

12. The display device repair method according to claim 1, wherein: The new window is provided in film form on the new adhesive layer.

13. The display device repair method according to claim 1, wherein: The display device repair method further includes: a step of providing a support film on said new adhesive layer, The new window is arranged on the supporting film, The frame of the supporting film is arranged at the periphery of the display panel.

14. The display device repair method according to claim 13, wherein: The new window is formed by directly coating the second transparent resin on the support film.

15. The display device repair method according to claim 1, wherein: The display device repair method further includes: removing the anti-reflection layer; and a step of providing a new anti-reflection layer on said display panel, The new adhesive layer is disposed on the new anti-reflection layer, The frame of the new anti-reflection layer is arranged at the periphery of the display panel.

16. The display device repair method according to claim 15, wherein: The new window is formed by directly coating the second transparent resin on the new adhesive layer.

17. A display device, wherein: include: Display panel; an anti-reflection layer, disposed on the display panel; an adhesive layer, disposed on the anti-reflection layer; as well as a window disposed on the adhesive layer, The widths of the window, the adhesive layer, and the anti-reflection layer are greater than the width of the display panel. The window is formed by directly coating a transparent resin on the adhesive layer.

18. The display device according to claim 17, wherein: The window, the adhesive layer, and the anti-reflection layer have the same width as each other, and when viewed from a plane, the frame of the window, the frame of the adhesive layer, and the frame of the anti-reflection layer overlap each other. The frame of the window, the frame of the adhesive layer, and the frame of the anti-reflection layer are arranged at the periphery of the display panel.

19. A method for manufacturing a display device, wherein: include: providing an anti-reflection layer on the display panel; providing an adhesive layer on the anti-reflection layer; The step of directly coating a transparent resin on the adhesive layer; as well as The step of solidifying the transparent resin to form a window, The window, the adhesive layer, and the anti-reflection layer have a width greater than that of the display panel.

20. The method for manufacturing a display device according to claim 19, wherein: The window, the adhesive layer, and the anti-reflection layer have the same width as each other, and when viewed from a plane, the frame of the window, the frame of the adhesive layer, and the frame of the anti-reflection layer overlap each other. The frame of the window, the frame of the adhesive layer, and the frame of the anti-reflection layer are arranged at the periphery of the display panel.

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