Display device manufacturing apparatus

Abstract

The display device manufacturing apparatus includes: a stage on which a display panel is provided; the mask is arranged on the display panel and comprises a frame and a bracket, the frame comprises a second surface opposite to the first surface and facing the working table, and a mask opening penetrating through the first surface and the second surface is defined by the frame; the bracket is arranged in the mask opening, is connected to the frame and comprises a third surface with the same plane as the first surface and a fourth surface opposite to the third surface; and a coating unit that moves in a direction parallel to a first direction in which the bracket extends, the coating unit including: a first roller that contacts the third surface; a second roller in contact with the first surface; and an ejection member that is disposed between the first roller and the second roller in a second direction intersecting the first direction and that ejects the resin toward the mask opening.

Description

Technical Field

[0001] The utility model relates to a display device manufacturing device, and more particularly to a display device manufacturing device capable of ensuring coating uniformity of a coating material. Background Art

[0002] Multimedia electronic devices such as televisions, mobile phones, tablets, navigation systems, and game consoles may include display devices for displaying images and electronic components for performing various functions. As electronic devices become more high-performance and thinner, display devices and electronic components are becoming larger and more highly integrated.

[0003] For example, as electronic devices become thinner, research is underway into devices and methods that can apply a cover plate to a display panel of a display device and ensure uniformity in thickness of the applied material. Utility Model Content

[0004] The utility model can provide a display device manufacturing device which can ensure the thickness uniformity of the coated coating material.

[0005] According to one embodiment of the utility model, a display device manufacturing device is provided, including: a workbench, on which a display panel is provided; a mask, provided on the display panel and including a frame and a bracket, the frame including a first surface and a second surface opposite to the first surface and facing the workbench, and defining a mask opening passing through the first surface and the second surface, the bracket is arranged in the mask opening and connected to the frame and includes a third surface having the same plane as the first surface and a fourth surface opposite to the third surface; and a coating unit, moving in a direction parallel to a first direction in which the bracket extends, the coating unit including: a first roller in contact with the third surface; a second roller in contact with the first surface; and a spray component, arranged between the first roller and the second roller in a second direction intersecting the first direction, and spraying resin toward the mask opening.

[0006] A display device manufacturing apparatus may be provided, wherein a lowermost end of the injection member is separated from a plane extending from the first surface and the second surface.

[0007] It may be that a display device manufacturing device is provided, wherein the bracket overlaps with a central portion of the mask opening.

[0008] A display device manufacturing apparatus may be provided, wherein a plurality of the first rollers and a plurality of the second rollers are provided, the first rollers are arranged along the second direction, and the second rollers are arranged to be spaced apart from the first rollers.

[0009] It may be that a display device manufacturing device is provided, wherein the mask further includes: an auxiliary bracket, which is arranged in the mask opening and extends along the second direction to be connected to the frame, and the width of the auxiliary bracket in the first direction is set to be greater than or equal to the width of the bracket in the second direction.

[0010] It may be that a display device manufacturing apparatus is provided, wherein the resin sprayed from the spraying component overlaps with at least a portion of the first surface and at least a portion of the bracket, and the display device manufacturing apparatus further includes: a curing unit that cures the applied resin.

[0011] It may be that a display device manufacturing device is provided, wherein a thickness of the bracket in the third direction is the same as a thickness of the frame in the third direction.

[0012] A display device manufacturing apparatus may be provided, wherein a plurality of the ejecting members are provided, and the ejecting members are arranged to be spaced apart in the second direction via the first roller.

[0013] It may be that a display device manufacturing apparatus is provided, further comprising: a mask stage, arranged between the workbench and the mask to support the mask.

[0014] It may be that a display device manufacturing device is provided, wherein the mask stage defines a workbench opening for accommodating the display panel, and the workbench opening overlaps with the mask opening.

[0015] The display device manufacturing apparatus according to an embodiment of the present invention can ensure the thickness uniformity of the coated material. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram showing a portion of a display device according to an embodiment of the present invention.

[0017] Figure 2 It is a three-dimensional diagram of a display device manufacturing apparatus according to an embodiment of the utility model.

[0018] Figure 3a to Figure 3c is a plan view of a mask according to an embodiment of the present utility model.

[0019] Figure 4 It is a three-dimensional diagram of a display device manufacturing apparatus according to an embodiment of the utility model.

[0020] Figure 5a to Figure 5e 4 is a cross-sectional view of a display device manufacturing apparatus showing a part of the steps of a display device manufacturing method according to an embodiment of the present invention.

[0021] (Explanation of Reference Numerals)

[0022] DP: Display Panel SU: Coating Unit

[0023] MSK: Mask SM: Jet parts

[0024] RL1: First Roller RL2: Second Roller

[0025] ST: Stand FR: Frame

[0026] M-OP: Mask Opening DETAILED DESCRIPTION

[0027] In this specification, when it is mentioned that any constituent element (or region, layer, part, etc.) is "on" other constituent elements, "connected to" or "combined to" other constituent elements, it means that any constituent element can be directly configured / connected / combined to other constituent elements or a third constituent element can be configured between them.

[0028] The same reference numerals refer to the same components. In addition, in the drawings, the thickness, ratio and size of the components are exaggerated for the effective description of the technical content. "And / or" includes all combinations that can be defined by the associated components.

[0029] The terms first, second, etc. may be used to describe various constituent elements, but the constituent elements are not limited to the terms. The terms are used only for the purpose of distinguishing one constituent element from another constituent element. For example, the first constituent element may be named as the second constituent element without departing from the scope of the invention, and similarly, the second constituent element may be named as the first constituent element. Unless there is a clearly different definition in the context, the expression in the singular includes the expression in the plural.

[0030] In addition, terms such as “below”, “below”, “above”, and “upper” are used to describe the relationship between components shown in the drawings. These terms are described as relative concepts based on the directions shown in the drawings.

[0031] The terms "including" or "having" should be understood as being used to specify the existence of features, numbers, steps, tasks, constituent elements, parts 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, parts or combinations thereof.

[0032] Unless otherwise defined, all terms (including technical terms 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 belongs. In addition, terms such as those defined in commonly used dictionaries should be interpreted as having the same meanings as those in the context of the relevant technology, and should not be interpreted as overly idealized or overly formal meanings unless explicitly defined herein.

[0033] Hereinafter, a display panel and a method for manufacturing the same according to an embodiment of the present invention will be described with reference to the accompanying drawings.

[0034] Figure 1 This is a schematic diagram showing a portion of a display device according to an embodiment of the present invention.

[0035] The display device DD may generate images and sense external inputs. The display device DD may include a display module DM and electronic components.

[0036] The display module DM may include a display panel DP, an upper part UM, and a lower part LM. The upper part UM may be a window, an optical layer, an adhesive layer, and may be provided in multiple layers, not limited to those shown in the drawings. The lower part LM may be a cover plate, a supporting part, and may be provided in multiple layers, not limited to those shown in the drawings.

[0037] exist Figure 1 The display panel DP, the upper part UM, and the lower part LM in the stacked structure of the display module DM are only briefly shown, but the embodiment of the display module DM is not limited thereto. The following describes the window and the adhesive layer as examples of the upper part UM, and describes the cover plate and the adhesive layer as examples of the lower part LM, and the upper part UM and the lower part LM are not limited thereto.

[0038] The display panel DP may display an image according to an electrical signal. The display panel DP according to an embodiment may be a light-emitting display panel, but is not particularly limited thereto. For example, the display panel DP may be an organic light-emitting display panel, an inorganic light-emitting display panel, or a quantum dot light-emitting display panel. The light-emitting layer of the organic light-emitting display panel may include an organic light-emitting substance, and the light-emitting layer of the inorganic light-emitting display panel may include an inorganic light-emitting substance. The light-emitting layer of the quantum dot light-emitting display panel may include quantum dots, quantum rods, and the like.

[0039] The window may be disposed on the display panel DP. The window may cover the display panel DP to protect the display panel DP from external impact and scratches. The window may be combined with the display panel DP through an adhesive layer.

[0040] The window may have a single-layer or multi-layer structure. For example, the window may include a plurality of plastic films bonded by an adhesive, or a glass film and a plastic film bonded by an adhesive. The window may also include a functional layer such as an anti-fingerprint layer, a phase control layer, a hard coating layer, etc., disposed on the transparent film.

[0041] The cover plate may be disposed on the display panel DP. The cover plate may be disposed apart from the window body via the display panel DP. The cover plate may have a single-layer or multi-layer structure. The cover plate not only dissipates heat, but also protects the display panel DP from external impact or interference transmitted by the display panel DP. The cover plate may be directly formed on the display panel DP.

[0042] The adhesive layer may be disposed between the form and the display panel DP, or between the cover plate and the display panel DP. The adhesive layer may have a single layer or a multilayer structure. The adhesive layer may include an optically clear resin. However, the material of each adhesive layer is not limited thereto, and may include a common adhesive or a cohesive. For example, the adhesive layer may include a pressure sensitive adhesive (PSA), an optically clear adhesive (OCA). In addition, without limitation thereto, the adhesive layer may include an optically clear adhesive film.

[0043] Figure 2 It is a three-dimensional diagram of a display device manufacturing apparatus according to an embodiment of the utility model.

[0044] The display device manufacturing apparatus according to an embodiment of the present invention may include a mask MSK and a coating unit SU. The mask MSK and the coating unit SU of the present invention may be arranged on a display panel DP (refer to Figure 5a )superior.

[0045] According to one embodiment, the coating object may be the display panel DP (see Figure 1 ), the coating material may be a resin. In addition, the coating material may be applied to the coating object to form the upper member UM (refer to Figure 1 ) or lower part LM (refer to Figure 1 However, the coating object and the coating material are not limited to the display panel DP (refer to Figure 1 ) and resin, and are not limited to any one embodiment.

[0046] The coating unit SU according to an embodiment of the present invention may include rollers RL1, RL2 and a spray member SM.

[0047] The rollers RL1 and RL2 can move forward and backward along the upper surface of the mask MSK. Figure 2 The rollers RL1 and RL2 can move forward and backward along the second direction DR2. The figure shows the points where the rollers RL1 and RL2 can move forward and backward along the second direction DR2, but the forward and backward directions of the rollers RL1 and RL2 are not limited thereto and can move forward and backward in a direction different from the second direction DR2.

[0048] Multiple rollers RL1 and RL2 may be provided. The first roller RL1 among the multiple rollers RL1 and RL2 may be in contact with the support ST, and the second roller RL2 among the multiple rollers RL1 and RL2 may be in contact with the frame FR. Specifically, the first roller RL1 among the multiple rollers RL1 and RL2 may be in contact with the third surface S3 of the support ST, and the second roller RL2 among the multiple rollers RL1 and RL2 may be in contact with the first surface S1 of the frame FR.

[0049] The first and second rollers RL1 and RL2 may contact different portions in the mask MSK, respectively. The first and second rollers RL1 and RL2 may be rollers having one rotation axis, but are not limited thereto, and may be rollers having different rotation axes, and are not limited to any one embodiment.

[0050] The first roller RL1 may contact the support ST to prevent the support ST from warping in the third direction DR3. By this, when the coating material is applied to the mask opening M-OP by the spraying member SM described later, the coating material can be evenly applied to the coating object. The second roller RL2 may contact the frame FR to prevent the frame FR from warping in the third direction DR3, and can prevent the shape of the mask MSK from changing due to an external force other than the roller applied to the mask MSK.

[0051] A plurality of first rollers RL1 may be provided. As an example, the number of the plurality of first rollers RL1 may correspond to the number of the brackets ST. The plurality of first rollers RL1 may be arranged spaced apart in the first direction DR1 in a direction intersecting the moving direction of the coating unit SU.

[0052] A plurality of second rollers RL2 may be provided. A plurality of second rollers RL2 may be arranged to be separated from the first roller RL1. The second roller RL2 may be arranged to be separated from the first roller RL1 and may be able to move forward and backward in a state where each second roller RL2 is in contact with the upper surface of the frame FR to prevent the first roller RL1 from deviating from the set position. Through this, the second roller RL2 may make the first roller RL1 and the second roller RL2 uniformly pressurize the mask MSK, and may keep the distance between the injection part SM of the coating unit SU and the mask opening M-OP constant. Through this, the coating uniformity of the coating material may be achieved.

[0053] According to one embodiment, the thickness of the first roller RL1 and the second roller RL2 in the first direction DR1 may be set to be the same. In addition, the thickness of the first roller RL1 and the second roller RL2 may correspond to the thickness of the first surface S1 and the thickness of the bracket ST. In the drawings, the first roller RL1 and the second roller RL2 are shown to have the same thickness as each other, but are not limited to this, the thickness of the first roller RL1 may be less than or equal to the thickness of the second roller RL2, and is not limited to this, and the thickness of the first roller RL1 may be greater than the thickness of the second roller RL2, and is not limited to any embodiment.

[0054] The spray part SM may spray the coating material toward the mask opening M-OP. The spray part SM sprays the coating material toward the mask opening M-OP to fill the mask opening M-OP with the coating material.

[0055] A plurality of ejection members SM may be provided, and the plurality of ejection members SM may be arranged between the plurality of rollers RL1, RL2. The plurality of ejection members SM may be located between the plurality of rollers RL1, RL2 spaced apart from each other in the first direction DR1. Some of the plurality of ejection members SM may be spaced apart from each other in the first direction DR1 across the first roller RL1. In addition, some of the plurality of ejection members SM may be located between the plurality of first rollers RL1.

[0056] The plurality of ejection parts SM may include a first ejection part SM1 and a second ejection part SM2. The first ejection part SM1 may overlap with a first opening OP1 to be described later, and the second ejection part SM2 may overlap with a second opening OP2 to be described later. The first ejection part SM1 may eject the coating material toward the first opening OP1, and the second ejection part SM2 may eject the coating material toward the second opening OP2 to be described later.

[0057] The spray part SM may further include a third spray part SM3. The third spray part SM3 may overlap with a third opening OP3 to be described later. The third spray part SM3 may spray the coating material toward the third opening OP3.

[0058] exist Figure 2 The third injection part SM3 of the injection part SM is shown, but it is not limited to what is shown in the figure, and the third injection part SM3 may be excluded. It is not limited to any one embodiment.

[0059] According to one embodiment, the lowermost end UL of the ejection member SM (refer to Figure 5a ) can be located above the lowermost ends of the first roller RL1 and the second roller RL2. By doing so, interference between the support ST or the mask MSK and the spraying member SM can be prevented, thereby providing durability of the mask MSK and the coating unit SU.

[0060] The coating unit SU may include a support body SB coupled to the rollers RL1, RL2 and the spraying member SM. The support body SB may be provided detachably from the rollers RL1, RL2 and the spraying member SM, but is not limited thereto, and may be provided integrally with the rollers RL1, RL2 and the spraying member SM, but is not limited to any one embodiment.

[0061] The mask MSK according to an embodiment of the present invention may include a frame FR and a support ST. The frame FR defines a mask opening M-OP, and the support ST may overlap the mask opening M-OP and be connected to the frame FR.

[0062] The frame FR may include a first surface S1, a second surface S2, a third surface IS, and a fourth surface OS. The first surface S1 may define the top of the mask MSK. The first surface S1 may be defined by a first direction DR1 and a second direction DR2. The second surface S2 may define the bottom of the mask MSK. The second surface S2 may be opposite to the first surface S1. A mask opening M-OP may be defined in the frame FR. The third surface IS may define the inner side of the frame FR. In addition, the third surface IS may define the mask opening M-OP. That is, the mask opening M-OP may penetrate the first surface S1 and the second surface S2 and be defined by the third surface IS. The third surface IS may extend in the thickness direction of the frame FR and be connected to the first surface S1 and the second surface S2, respectively. The thickness direction of the frame FR may be a direction parallel to a third direction DR3 intersecting the first direction DR1 and the second direction DR2, respectively. The fourth surface OS may define the outer side of the frame FR. The fourth surface OS may extend in the thickness direction of the frame FR to be connected to the first surface S1 and the second surface S2. For convenience of description below, the third surface IS and the fourth surface OS of the frame FR are referred to as the inner surface IS and the outer surface OS, respectively.

[0063] The mask opening M-OP exposes the display panel DP (refer to Figure 5a ) at least a portion of the display panel DP exposed by the mask opening M-OP (refer to Figure 5a The resin sprayed from the coating unit SU may be applied to the display panel DP (refer to FIG. 1 ) through the mask opening M-OP. Figure 5a ) is coated. The coating area may correspond to the front of the unit area. At this time, the display panel DP (refer to Figure 5a ) may include at least one unit area. However, this is an exemplary case, and the coating area may also have an area smaller than one unit area, or have an area overlapping with multiple unit areas according to the design of the coating area, and is not limited to any one embodiment.

[0064] The support ST can be connected to the inner side IS of the frame FR (see Figure 3b). The bracket ST may be disposed in the mask opening M-OP. The bracket ST may be disposed overlappingly with the center portion of the mask opening M-OP, and the spacing distance between the bracket ST and the mask opening M-OP in the first direction DR1 may be constant. However, this is not limited thereto, and the spacing distance between the bracket ST and the mask opening M-OP in the first direction DR1 may not be constant, and is not limited to any one embodiment. The bracket ST may divide the aforementioned mask opening M-OP into a first opening OP1 and a second opening OP2.

[0065] The support ST may extend in a direction parallel to the moving direction of the coating unit SU. The support ST may extend along the second direction DR2. However, the extension direction of the support ST is not limited to the second direction DR2 and may extend in a direction different from the second direction DR2, and is not limited to any one embodiment.

[0066] The support ST may include a first surface S3 connected to the frame FR and having the same plane as the first surface S1 of the mask MSK and a second surface S4 opposite to the first surface S1. For convenience of description, the first surface S3 of the support ST is referred to as the third surface S3, and the second surface S4 of the support ST is referred to as the fourth surface S4.

[0067] The first roller RL1 mentioned above may be in contact with the third surface S3, and the second roller RL2 may be in contact with the first surface S1. The support ST is in contact with the first roller RL1, thereby preventing the mask MSK from being deviated from the existing design position due to the stress, such as warping in the third direction DR3. This ensures uniform coating of the coating material in the area adjacent to the support ST.

[0068] In addition, the warping phenomenon in the third direction DR3 of the stand ST is prevented, and collision with the spraying member SM can be prevented. This ensures the durability of the mask MSK and the coating unit SU, and makes it easy to maintain the mask MSK and the coating unit SU.

[0069] The mask MSK may include metal. As an example, the mask MSK may include stainless steel (SUS). The rollers RL1 and RL2 may include vespel. Thus, static electricity or the like that may be generated due to contact between the mask MSK and the rollers RL1 and RL2 may be prevented, and damage to the mask MSK may be prevented. According to the utility model, the durability between the mask MSK and the rollers RL1 and RL2 may be increased, and additional external forces applied to the mask MSK or the rollers RL1 and RL2 may be prevented, so that the positions of the mask MSK and the rollers RL1 and RL2 may be maintained at set values. By this, the coating uniformity of the coating material on the coating object may be ensured.

[0070] Figure 3a to Figure 3cis a plan view of a mask according to an embodiment of the present utility model.

[0071] Reference Figure 3a , a stand ST may be disposed in the mask opening M-OP. The stand ST may have a rod shape extending along the second direction DR2. The mask opening M-OP may be divided into a first opening OP1 and a second opening OP2 along the first direction DR1 by the stand ST.

[0072] The support ST may overlap the center of the mask opening M-OP. Thus, the first opening OP1 and the second opening OP2 may have the same area on a plane. However, this is an exemplary case, and according to the area design of the first opening OP1 and the second opening OP2, the position of the support ST may be variously changed within the mask opening M-OP, and is not limited to any one embodiment.

[0073] The third surface S3 of the stand ST may be in contact with the first roller RL1, and the first surface S1 of the frame FR may be in contact with the second roller RL2. Figure 2 ) can spray resin, and the second spraying part SM2 mentioned above in the second opening OP2 (refer to Figure 2 ) can spray resin.

[0074] Reference Figure 3b A plurality of brackets ST may be disposed in the mask opening M-OP. The plurality of brackets ST may include a first bracket ST1 and a second bracket ST2. The plurality of brackets ST may be spaced apart and disposed along the first direction DR1.

[0075] The plurality of brackets ST can divide the mask opening M-OP into a first opening OP1, a second opening OP2, and a third opening OP3. The third opening OP3 can overlap the center of the mask opening M-OP, and the first opening OP1 and the second opening OP2 can be separated in the first direction DR1 via the third opening OP3. Figure 3b 2 shows that the first opening OP1 and the second opening OP2 have the same area on a plane, and the third opening OP3 may have an area narrower than the first opening OP1 and the second opening OP2. However, it is not limited thereto, and the areas of the first opening OP1, the second opening OP2, and the third opening OP3 may be the same, and are not limited to any one embodiment.

[0076] The first injection member SM1 (see Figure 2 ) sprays the resin, and the second spraying member SM2 (refer to Figure 2 ) sprays resin, and the aforementioned third spraying part SM3 (refer to Figure 2)Spraying resin.

[0077] Unlike a portion of the coating object that overlaps with the stent ST and is not coated with the resin, the third spraying member SM3 (see Figure 2 ) The resin can be injected and the resin can be arranged on a portion of the coating object overlapping with the third opening OP3.

[0078] Afterwards, when scribing the area of ​​the coating object that overlaps with the bracket ST but is not coated with resin, a device for scribing can be supported in the area coated with resin while overlapping with the third opening OP3 in the coating object, and the scribing of the coating object can be smoothly performed, thereby increasing process efficiency and improving product quality.

[0079] Reference Figure 3c , a plurality of brackets ST may be disposed in the mask opening M-OP. In addition, an auxiliary bracket SST may be disposed in the mask opening M-OP. The plurality of brackets ST may be spaced apart and disposed along the first direction DR1. The plurality of brackets ST may divide the mask opening M-OP into a first opening OP1, a second opening OP2, and a third opening OP3.

[0080] The auxiliary bracket SST may extend in a direction crossing an extending direction of the bracket ST. The auxiliary bracket SST may have a rod shape extending in the first direction DR1. The auxiliary bracket SST may cross the bracket ST.

[0081] The width T2 of the auxiliary bracket SST in the second direction DR2 can be set to be greater than or equal to the width T1 of the bracket ST in the first direction DR1. As an example, the width T2 of the auxiliary bracket SST in the second direction DR2 is set to be greater than the width T1 of the bracket ST in the first direction DR1, so that when there is no external force set in the third direction DR3 alone, warping in the third direction DR3 can also be prevented.

[0082] The auxiliary bracket SST may divide each of the first opening OP1, the second opening OP2, and the third opening OP3. A plurality of auxiliary brackets SST may be provided, and the auxiliary brackets SST may be spaced apart from each other along the second direction DR2. Each of the spaced-apart auxiliary brackets SST may divide each of the first opening OP1, the second opening OP2, and the third opening OP3 into various regions.

[0083] The plurality of supports ST and the plurality of auxiliary supports SST can effectively disperse stress applied to the mask MSK, thereby preventing deformation of the mask MSK and ensuring durability of the mask MSK.

[0084] Figure 4 It is a three-dimensional diagram of a display device manufacturing apparatus according to an embodiment of the utility model.

[0085] Figure 4 Display device manufacturing device and Figure 2 Compared with the display device manufacturing apparatus of FIG. 1 , each of the first roller RL1 and the second roller RL2 may be arranged along the second direction DR2 .

[0086] The plurality of first rollers RL1 are in contact with the same support ST, and thus can effectively prevent the support ST from warping along the third direction DR3.

[0087] The plurality of second rollers RL2 may simultaneously contact the frame FR to effectively prevent the mask MSK from being warped in the third direction DR3 , and may effectively prevent the mask MSK from being changed in shape due to an external force applied to the mask MSK other than the rollers.

[0088] In addition, the first roller RL1 and the second roller RL2 of the coating unit SU may simultaneously contact the wide area of ​​the mask MSK along the second direction DR2 and pressurize in the third direction DR3 , thereby increasing the flatness of the mask MSK before and after the start of coating.

[0089] The accompanying drawings only show that each of the multiple first rollers RL1 and the multiple second rollers RL2 on the same bracket ST and on one side of the frame FR are arranged along the second direction DR2, but are not limited to this, and each of the multiple first rollers RL1 on the same bracket ST can be arranged along the first direction DR1, and each of the multiple second rollers RL2 on one side of the frame FR can be arranged along the first direction DR1, and are not limited to any one embodiment.

[0090] Figure 5a to Figure 5e 4 is a cross-sectional view of a display device manufacturing apparatus showing a part of the steps of a method for manufacturing a display device according to an embodiment of the present invention.

[0091] The display device manufacturing method according to an embodiment of the present invention may include the steps of configuring a display panel DP on a workbench STG2, configuring a mask stage STG1 and a mask MSK on the workbench STG2, configuring a coating unit SU on the mask MSK, coating the coating unit SU with a coating material RS to an opening of the mask MSK, removing the mask MSK and the mask stage STG1, and curing the coating material coated on the display panel DP. Specific steps in each step may be omitted as needed, and the order between the steps is not limited to the order described, and is not limited to any embodiment.

[0092] The following Figure 5a to Figure 5e1 is a cross-sectional view showing a portion of a display device manufacturing apparatus in a portion of a step.

[0093] Reference Figure 5a According to an embodiment of the present invention, the method for manufacturing a display device may include the steps of arranging a display panel DP and a mask stage STG1 on a work stage STG2, and arranging a coating unit SU on the mask stage STG1. The mask stage STG1 may define a work stage opening S-OP for accommodating the display panel DP, and the work stage opening S-OP overlaps with the mask opening M-OP.

[0094] In the coating unit SU, the lowermost end UL of the spray part SM may be separated from the plane BL extending from the position where the third surface S3 of the support ST contacts the first roller RL1 and the plane BL extending from the position where the first surface S1 of the frame FR contacts the second roller RL2. The lowermost end UL of the spray part SM may be separated from the upper side of the extended plane BL. The lowermost end UL of the spray part SM may be separated from the upper side of the extended plane BL to prevent the spray part SM and the support ST or the mask MSK from interfering with each other. As an example, in the event of warping in the third direction DR3 of the support ST or the frame FR, the spray part SM and the support ST or the frame FR may be prevented from interfering with each other, thereby ensuring the durability of the mask MSK and the coating unit and maintaining uniform coating quality.

[0095] Reference Figure 5a The thickness of the third direction DR3 of the support ST and the thickness of the third direction DR3 of the frame FR are the same as the first thickness D1. The plane BL extending from the position where the third surface S3 of the support ST and the first roller RL1 are in contact with the first surface S1 of the frame FR and the plane BL extending from the position where the second roller RL2 is in contact are the same as the reference plane BL.

[0096] However, the plane extending from the position where the third surface S3 of the support ST contacts the first roller RL1 and the plane extending from the position where the first surface S1 of the frame FR contacts the second roller RL2 may be different from each other, and as an example, one plane may be located above the other plane, without limitation to any embodiment. However, in this case, both planes are located below the lowermost end UL of the ejection member SM.

[0097] According to an embodiment of the present invention, the thickness of the bracket ST in the third direction DR3 may be the same as the thickness of the frame FR in the third direction DR3.

[0098] In this case, the plane extending from the third surface S3 of the support ST may be the same as the plane extending from the first surface S1 of the frame FR. The planes may be set to be the same and the upper surface of the mask MSK may be moved without tilting to one side when the coating unit SU moves along the second direction DR2. By this, the warping phenomenon of the support ST and the deformation of the frame FR may be effectively prevented and the uniformity of the coating quality may be ensured.

[0099] Reference Figure 5b According to an embodiment of the present invention, the method for manufacturing a display device may include a step in which a spraying member SM of a coating unit SU coats a coating substance RS, for example, a resin RS, onto a mask opening M-OP.

[0100] The spraying part SM may spray the coating material RS toward the mask opening M-OP. Specifically, the first spraying part SM1 may spray the coating material RS toward the first opening OP1, the second spraying part SM2 may spray the coating material RS toward the second opening OP2, and the third spraying part SM3 may spray the coating material RS toward the third opening OP3. When the coating material RS is sprayed toward the first opening OP1, the second opening OP2, and the third opening OP3, at least a portion of the coated coating material RS may be coated on at least a portion of the upper surface of the bracket ST or at least a portion of the upper surface of the frame FR.

[0101] Referring to the drawings, the upper surface of the substance applied to the mask opening M-OP may be located on the upper side of the aforementioned reference plane BL, and is not limited to the drawings, and may be located on the lower side, and is not limited to any one embodiment.

[0102] The coating material RS applied to the mask opening M-OP may be applied on the display panel DP.

[0103] In the drawings, the coating material RS is shown to be applied on the display panel DP, but it is not limited thereto, and the coating material RS may be applied on a mother substrate including a plurality of display panels DP. At this time, the coating material RS may be applied through the mask opening M-OP in at least any one of the aforementioned first injection part SM1, the second injection part SM2, and the third injection part SM3, so that the coating material RS may be applied only on a portion of the mother substrate. This allows the coating material RS to be applied only on a portion of the display panels among the plurality of display panels DP.

[0104] In addition, the area on the mother substrate overlapping with the bracket ST may be an area where the coating material RS is not applied. A portion of the mother substrate overlapping with the bracket ST and not applied with the coating material RS may be a dummy area or an area where scribing is performed.

[0105] Unlike a portion of the mother substrate that overlaps with the support ST in the mother substrate and is not coated with the coating material RS, the third opening OP3 (refer to Figure 5a ) The aforementioned third injection member SM3 can inject the coating material RS and can be connected to the third opening OP3 (refer to Figure 5a )A portion of the overlapping mother substrate is configured with resin.

[0106] Afterwards, when scribing the area overlapping with the support ST in the mother substrate and not coated with the coating material RS, the third opening OP3 in the mother substrate (see Figure 5a ) The area where the coating material RS is overlapped and coated supports a device for scribing so that the scribing of the mother substrate can be smoothly performed, thereby increasing the process efficiency and improving the quality of the product.

[0107] According to an embodiment of the present invention, the thickness of the coating material RS coated on the mask opening M-OP may be, for example, 150 micrometers or more, but is not limited to this value.

[0108] Reference Figure 5c as well as Figure 5d According to an embodiment of the present invention, the method for manufacturing a display device may include removing a coating unit SU (refer to Figure 5b ) and a step of removing the mask MSK disposed on the mask stage STG1. In the step of removing the mask MSK, a portion of the coating material RS coated on the display panel DP can be removed.

[0109] The coating material RS can be coated on the first opening OP1 (see Figure 5a ), the second opening OP2 (refer to Figure 5a ) and the third opening OP3 (refer to Figure 5a ). In addition, the coating substance RS may be applied to at least a portion of the first surface S1 of the frame FR and at least a portion of the third surface S3 of the bracket ST. In the step of removing the mask MSK, the coating substance RS applied to at least a portion of the first surface S1 of the frame FR and the coating substance applied to at least a portion of the third surface S3 of the bracket ST may be removed together with the mask MSK.

[0110] The coating substance RS is removed together with the mask MSK, so that the portion where the mask MSK and the coating substance RS are in contact can be smoothly adjusted.

[0111] The second thickness D2 of the coating material RS in the third direction DR3 may be greater than or equal to the thickness of the mask MSK (refer to Figure 5a ) has a first thickness D1 in the third direction DR3.

[0112] Reference Figure 5e According to an embodiment of the present invention, the method for manufacturing a display device may include a step of curing the coated object on the display panel DP.

[0113] The display device manufacturing apparatus may include a curing unit HU. Figure 5e The curing unit HU may provide an internal space for accommodating the workbench STG2, the mask stage STG1, the display panel DP, and the applied coating material RS. As an example, the curing unit HU may be a chamber. However, the curing unit HU is not limited to the chamber and may be provided as various curing devices such as a heater, and is not limited to any one embodiment.

[0114] The resin can be adjusted to have the required properties by curing. In the present invention, heat curing is shown as a method of curing the resin, but it is not limited thereto, and UV curing can be used, and it is not limited to any one embodiment.

[0115] The second thickness D2 of the coating substance RS applied to the display panel DP before curing may be the same as or different from the third thickness D3 of the resin RS' applied to the display panel DP after curing. The second thickness D2 of the coating substance RS applied to the display panel DP before curing may be greater than or equal to the third thickness D3 of the cured resin RS' or the target value of the thickness of the resin.

[0116] At this time, the high viscosity of the coating material RS can be maintained and the coating material RS′ after curing can be adjusted to have the same shape as that of the coating material RS before curing.

[0117] The above description is made with reference to the preferred embodiments of the present invention, but a skilled person in the art or a person with general knowledge in the art can understand that various modifications and changes can be made to the present invention without departing from the concept of the present invention and the scope of the technical field as described in the attached claims. Therefore, the technical scope of the present invention is not limited to the contents described in the detailed description of the specification, but should be determined by the claims.

Claims

1. A display device manufacturing device, characterized in that: include: A workbench, provided with a display panel; A mask provided on the display panel and comprising a frame and a bracket, wherein the frame comprises a first surface and a second surface opposite to the first surface and facing the workbench, and defines a mask opening penetrating the first surface and the second surface, and the bracket is arranged in the mask opening and connected to the frame and comprises a third surface having the same plane as the first surface and a fourth surface opposite to the third surface; as well as The coating unit moves along a direction parallel to the first direction in which the bracket extends, The coating unit comprises: a first roller in contact with the third surface; a second roller in contact with the first surface; and The spraying member is disposed between the first roller and the second roller in a second direction intersecting the first direction, and sprays the resin toward the mask opening.

2. The display device manufacturing apparatus according to claim 1, characterized in that: The lowermost end of the injection member is spaced apart from a plane extending from the first surface and the second surface.

3. The display device manufacturing apparatus according to claim 1, characterized in that: The support overlaps a central portion of the mask opening.

4. The display device manufacturing apparatus according to claim 1, characterized in that: The first roller and the second roller are provided in plurality, The first rollers are arranged along the second direction, and the second rollers are arranged to be spaced apart from the first rollers.

5. The display device manufacturing apparatus according to claim 1, characterized in that: The mask further comprises: an auxiliary bracket, disposed in the mask opening and extending along the second direction and connected to the frame, The width of the auxiliary bracket in the first direction is set to be greater than or equal to the width of the bracket in the second direction.

6. The display device manufacturing apparatus according to claim 1, characterized in that: The resin injected from the injection member overlaps at least a portion of the first surface and at least a portion of the bracket, The display device manufacturing device further includes: The curing unit cures the applied resin.

7. The display device manufacturing apparatus according to claim 1, characterized in that: The thickness of the bracket in the third direction is the same as the thickness of the frame in the third direction.

8. The display device manufacturing apparatus according to claim 1, characterized in that: The injection components are provided in plurality. The injection member is disposed spaced apart in the second direction across the first roller.

9. The display device manufacturing apparatus according to claim 1, characterized in that: The display device manufacturing device further includes: The mask stage is arranged between the workbench and the mask to support the mask.

10. The display device manufacturing apparatus according to claim 9, characterized in that: The mask stage defines a workbench opening for accommodating the display panel. The stage opening overlaps with the mask opening.

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