Screen stretching device of mask structure and screen stretching method of mask structure

Abstract

The invention relates to a screen stretching device of a mask structure and a screen stretching method of the mask structure, the mask structure comprises a mask frame, a plurality of supporting pieces and a plurality of mask units, the screen stretching device comprises a screen stretching machine sub-device, the screen stretching machine sub-device is used for fixedly installing the supporting pieces and the mask units on the mask frame, the mask units are located on one sides of the supporting pieces, and the screen stretching machine sub-device is used for stretching the mask units on the mask frame. The multiple supporting pieces comprise the multiple first supporting pieces arranged at intervals in the first direction and the multiple second supporting pieces arranged at intervals in the second direction. The auxiliary sub-device is used for adsorbing at least two of the mask unit, the first supporting piece and the second supporting piece and enabling at least two of the mask unit, the first supporting piece and the second supporting piece to be arranged in a contact manner; and the welding sub-device is used for welding at least two of the mask unit, the first supporting piece and the second supporting piece which are arranged in a contact mode. The performance of the mask structure can be improved.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a network stretching device for a mask structure and a network stretching method for a mask structure. Background Art

[0002] With the continuous development of display technology, organic light-emitting diode (OLED) display devices have been widely used in many fields such as flat panel display, flexible display, vehicle display and solid-state lighting due to their advantages such as wide color gamut, high contrast, energy saving and foldability. Organic light-emitting diode display panels include light-emitting devices, and the manufacture of light-emitting devices requires the use of precision metal masks (FMM). Precision metal masks (FMM mask) include mask frames (Frame), supports (Support, howling and / or Cover) and mask units (Sheet).

[0003] However, the mask structure in the prior art has various deficiencies, and the performance of the mask structure needs to be improved. Summary of the invention

[0004] Based on this, it is necessary to provide a network stretching device for a mask structure and a network stretching method for a mask structure, aiming to solve various deficiencies in the mask structure in the prior art and to improve the performance of the mask structure.

[0005] In a first aspect, an embodiment of the present application provides a net stretching device for a mask structure, wherein the mask structure includes a mask frame, a plurality of support members, and a plurality of mask units, and the net stretching device includes:

[0006] A net stretching device, used for fixing the plurality of the supporting members and the plurality of the mask units on the mask frame, wherein the mask unit is located on one side of the plurality of the supporting members, and the plurality of the supporting members include a plurality of first supporting members spaced apart along a first direction, and a plurality of second supporting members spaced apart along a second direction;

[0007] an auxiliary sub-device, used for adsorbing at least two of the mask unit, the first support member and the second support member, and making at least two of the mask unit, the first support member and the second support member contact each other;

[0008] The welding sub-device is used to weld at least two of the mask unit, the first support member and the second support member that are arranged in contact with each other.

[0009] In the second aspect, based on the same application concept, the embodiment of the present application provides a method for stretching a mask structure, including:

[0010] Providing a mask frame, a plurality of support members and a plurality of mask units;

[0011] Provide a network machine device;

[0012] providing an auxiliary sub-device;

[0013] Providing a welding sub-device;

[0014] The plurality of support members are fixedly mounted on the mask frame by the net stretching device, wherein the plurality of support members include a plurality of first support members spaced apart along a first direction, and a plurality of second support members spaced apart along a second direction;

[0015] The plurality of mask units are fixedly mounted on the mask frame by the net stretching device, wherein the mask units are located on one side of the plurality of support members;

[0016] Adsorbing at least two of the mask unit, the first support member, and the second support member by the auxiliary sub-device, and placing at least two of the mask unit, the first support member, and the second support member in contact with each other;

[0017] At least two of the mask unit, the first support member, and the second support member that are arranged in contact are welded by the welding sub-device.

[0018] In an embodiment of the present application, an auxiliary sub-device is used to adsorb at least two of the mask unit, the first support member, and the second support member, and to make at least two of the mask unit, the first support member, and the second support member contact each other, and then weld at least two of the mask unit, the first support member, and the second support member in contact with each other through a welding sub-device. The implementation scheme and beneficial effects include: 1) In some embodiments, the mask unit and the second support member in contact are welded to eliminate the gap between the second support member and the mask unit, thereby avoiding the evaporated organic material from being evaporated through the first gap to an area outside the preset area, improving the accuracy of the film layer stacking of the light-emitting material, improving the precision and accuracy of the evaporation process, and improving or avoiding the problem of color mixing on the display panel; 2) In some embodiments, the second support member is located on the side of the first support member away from the mask unit. The mask unit and the first support member in contact are welded to eliminate the gap between the first support member and the mask unit, and also avoiding the evaporated organic material from being evaporated through the gap. To the area outside the preset area, improve or avoid the problem of color mixing of the display panel; 3) In some embodiments, the first support member and the second support member that are in contact are welded, which improves the support and shielding effect of the first support member and the second support member on the mask unit, such as reducing or avoiding the first gap, thereby improving the precision and accuracy of the evaporation process; 4) In some embodiments, the first support member and the second support member that are in contact are welded, and part of the support member is cut and removed to form evaporation areas of different sizes, so that a mask structure can be suitable for the manufacture of display panels of different sizes, and a mask structure can be transformed into a evaporation suitable for display panel products of different sizes, thereby reducing the manufacturing cost of display panels of different sizes; 5) In some embodiments, the mask unit that is in contact is welded to the first support member, and the first support member and the second support member that are in contact are welded, which can simultaneously play the role of removing the gap and improving the support of the support member to the mask unit. Based on at least one of the above five aspects, the embodiment of the present application can greatly improve the performance of the mask structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the drawings required for use in the embodiments or the conventional technology descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 A cross-sectional schematic diagram of a mask structure in the prior art.

[0021] Figure 2A side view schematic diagram of an auxiliary sub-device in a net stretching device of a mask structure provided in an embodiment of the present application.

[0022] Figure 3 A schematic top view of an auxiliary sub-device in a net stretching device of a mask structure provided in an embodiment of the present application.

[0023] Figure 4 A schematic diagram of the process steps of a method for stretching a mask structure provided in an embodiment of the present application.

[0024] Figure 5 A schematic top view of a portion of the structure of the first mask structure provided in an embodiment of the present application.

[0025] Figure 6 A schematic top view of a first mask structure provided in an embodiment of the present application.

[0026] Figure 7 A schematic diagram of the first intermediate process of the mesh stretching method for the first mask structure provided in an embodiment of the present application.

[0027] Figure 8 A schematic diagram of the second intermediate process of the mesh stretching method for the first mask structure provided in an embodiment of the present application.

[0028] Fig. 9 A schematic diagram of the cross-sectional structure of the mask structure after the web stretching method of the first mask structure provided in an embodiment of the present application is completed.

[0029] Fig.10 A schematic diagram of the first intermediate process of the web stretching method for the second mask structure provided in an embodiment of the present application.

[0030] Fig.11 A schematic diagram of the second intermediate process of the web stretching method for the second mask structure provided in an embodiment of the present application.

[0031] Fig.12 A schematic top view of a partial structure of the mask structure after the web stretching method of the second mask structure provided in an embodiment of the present application is completed. DETAILED DESCRIPTION

[0032] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0034] When describing positional relationships, unless otherwise specified, when an element such as a layer, film, or substrate is referred to as being "on" another element, it can be directly on the other element or there may be intervening elements. Further, when a layer is referred to as being "under" another layer, it can be directly under or there may be one or more intervening elements. It is also understood that when a layer is referred to as being "between" two layers, it can be the only layer between the two layers or there may be one or more intervening elements.

[0035] In the case of using “including”, “having”, and “comprising” described herein, another component may be added unless a clear limiting term such as “only”, “consisting of”, etc. is used. Unless mentioned otherwise, a term in the singular form may include a plural form and should not be understood as being one in number.

[0036] It should be understood that although the terms "first", "second", etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element. For example, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element without departing from the scope of the present application.

[0037] It should also be understood that when interpreting an element, even if not explicitly described, the element is interpreted as including a range of error, which should be within the acceptable deviation range of the specific value determined by those skilled in the art. For example, "approximately", "approximately" or "substantially" can mean within one or more standard deviations, which are not limited here.

[0038] Furthermore, in the specification, the phrase “planar distribution schematic diagram” refers to a drawing when a target portion is viewed from above, and the phrase “cross-sectional schematic diagram” refers to a drawing when a section taken by vertically cutting the target portion is viewed from the side.

[0039] In addition, the drawings are not drawn to a 1:1 scale, and the relative sizes of the elements in the drawings are drawn only as examples and not necessarily according to the true scale.

[0040] It is obvious to those skilled in the art that various modifications and changes can be made in this application without departing from the spirit or scope of this application. Therefore, this application is intended to cover modifications and changes of this application that fall within the scope of the corresponding claims (technical solutions claimed for protection) and their equivalents. It should be noted that the implementation methods provided in the embodiments of this application can be combined with each other without contradiction.

[0041] As described in the background technology section, the mask structure in the prior art has various deficiencies, and the performance of the mask structure needs to be improved. Figure 1 The figure is a cross-sectional schematic diagram of a mask structure in the prior art. The mask structure 100 includes a mask frame 10, a plurality of support members 20 and a plurality of mask units 30. The plurality of support members 20 and the plurality of mask units 30 are fixedly mounted on the mask frame 10. The mask unit 30 is located on one side of the plurality of support members 20. The plurality of support members 20 include a plurality of first support members 21 spaced apart along a first direction, and a plurality of second support members 22 spaced apart along a second direction. The inventors have found that the deficiencies of the mask structure in the prior art include: 1) there is a gap between the mask unit 30 and the support member 20 ( Figure 1 1) The first gap JX1 in the film. In the evaporation process, the first gap JX1 causes the mask structure 100 to not fit tightly with the substrate to be evaporated, and the evaporated organic material will be evaporated to the area outside the preset area through the first gap JX1, which reduces the accuracy of the film stacking of the light-emitting material, reduces the precision and accuracy of the evaporation process, and causes the problem of color mixing on the display panel; 2) There is a gap between the first support member 21 and the second support member 22, which reduces the support and shielding effect of the first support member 21 and the second support member 22 on the mask unit 30, and also reduces the precision and accuracy of the evaporation process; 3) At present, a mask structure is only suitable for the manufacture of display panels of one size, and cannot be modified to be suitable for evaporation of display panel products of different sizes. Therefore, the performance of the mask structure needs to be improved.

[0042] Based on the above technical problems, the inventors have found that by adding an auxiliary sub-device to the net stretching device of the mask structure, after the net stretching sub-device fixes at least two of the mask unit, the first support member and the second support member on the mask frame, the auxiliary sub-device is used to adsorb at least two of the mask unit, the first support member and the second support member, and make at least two of the mask unit, the first support member and the second support member contact each other, and then weld at least two of the mask unit, the first support member and the second support member in contact with each other through a welding sub-device, thereby solving at least one of the above technical problems.

[0043] See also Figures 2 to 12 . Figure 2 A side view schematic diagram of an auxiliary sub-device in a net stretching device of a mask structure provided in an embodiment of the present application. Figure 3 A schematic top view of an auxiliary sub-device in a net stretching device of a mask structure provided in an embodiment of the present application.

[0044] Figure 4 A schematic diagram of the process steps of a method for stretching a mask structure provided in an embodiment of the present application.

[0045] Figure 5 A schematic top view of a portion of the structure of the first mask structure provided in an embodiment of the present application. Figure 6 A schematic top view of a first mask structure provided in an embodiment of the present application. Figure 5 This is a schematic diagram of the mask unit before it is fixedly mounted on the mask frame. Figure 6 This is a schematic diagram of the mask unit after being fixedly mounted on the mask frame.

[0046] Figure 7 A schematic diagram of the first intermediate process of the mesh stretching method for the first mask structure provided in an embodiment of the present application. Figure 8 A schematic diagram of the second intermediate process of the mesh stretching method for the first mask structure provided in an embodiment of the present application. Fig. 9 A schematic diagram of the cross-sectional structure of the mask structure after the web stretching method of the first mask structure provided in an embodiment of the present application is completed. Figure 7 and Figure 8 The first mask structure stretching method process is shown in FIG. Figure 6 The cross section at the dotted line C2-C2 in . Fig. 9 The first mask structure is shown after the net stretching method is completed. Figure 6 The cross section at the dotted line C2-C2 in .

[0047] Fig.10 A schematic diagram of the first intermediate process of the web stretching method for the second mask structure provided in an embodiment of the present application. Fig.11 A schematic diagram of the second intermediate process of the web stretching method for the second mask structure provided in an embodiment of the present application. Fig.12 A schematic top view of a partial structure of the mask structure after the web stretching method of the second mask structure provided in an embodiment of the present application is completed. Fig.12 The mask structure is Figure 5 It is obtained by further processing based on the middle mask structure. Fig.10 and Fig.11 The second mask structure stretching method process is shown in FIG. Figure 5 The cross section at the dotted line C1-C1 in FIG. Fig.12 The mask units in the mask structure are not shown.

[0048] The present application provides a net-stretching device for a mask structure, which includes a net-stretching sub-device, an auxiliary sub-device 200, and a welding sub-device. The mask structure 100 includes a mask frame 10, a plurality of support members 20, and a plurality of mask units 30. The net-stretching sub-device is used to fix the plurality of support members 20 and the plurality of mask units 30 on the mask frame 10, wherein the mask units 30 are located on one side of the plurality of support members 20, and the plurality of support members 20 include a plurality of first support members 21 arranged at intervals along a first direction X, and a plurality of second support members 22 arranged at intervals along a second direction Y. The auxiliary sub-device 200 is used to adsorb at least two of the mask unit 30, the first support member 21, and the second support member 22, and to make at least two of the mask unit 30, the first support member 21, and the second support member 22 contact each other. The welding sub-device is used to weld at least two of the mask unit 30, the first support member 21, and the second support member 22 that are arranged in contact.

[0049] For example, the net stretching machine sub-device can be any net stretching machine sub-device or net stretching machine in the prior art, so it is not shown in the figure. The net stretching machine sub-device can fix multiple support members 20 on the mask frame 10, and the net stretching machine sub-device can stretch the mask unit 30 and then fix it on the mask frame 10.

[0050] For example, the net stretching machine sub-device may include: a base, a worktable, a measurement and welding integrated system, a motion system and a mask pre-alignment system; the base is used to support the mask frame 10; the worktable is used to place the mask frame 10; the measurement and welding system is used to measure the position and posture of the mask unit 30, and weld the mask unit 30 to the mask frame 10; the motion system is used to install the measurement and welding system and drive the measurement and welding system to move; the mask pre-alignment system is used to compensate the offset of the mask unit 30 in a preset direction before the mask unit 30 enters the net stretching process. The structural part of the net stretching machine sub-device is limited to this.

[0051] For example, the welding sub-device can be any welding sub-device or welding equipment that can be used for precision metal mask plates in the prior art, so it is not shown in the figure. For example, the welding sub-device can be a laser welding machine or an ultrasonic welding device.

[0052] For example, the mask structure provided in the embodiment of the present application may be used to manufacture the mask structure 100 , and the mask structure 100 may be a precision metal mask (FMM).

[0053] For example, Figure 5 and Figure 6 As shown, a plurality of first support members 21 and a plurality of second support members 22 define a plurality of evaporation regions 20a. One evaporation region 20a corresponds to one display panel, but is not limited thereto.

[0054] For example, Figure 5As shown, the mask unit 30 includes an integral grid area 30a or a plurality of grid areas 30a arranged at intervals, and the grid area 30a includes a plurality of grid openings. One grid opening may correspond to a sub-pixel of a display panel, but is not limited thereto.

[0055] For example, in the evaporation process, the evaporated material passes through the evaporation area 20 a and the grid openings to reach a preset area on the substrate to be evaporated.

[0056] For example, the first direction X and the second direction Y may be perpendicular to each other, but the present invention is not limited thereto.

[0057] In the embodiment of the present application, the auxiliary sub-device 200 is used to adsorb at least two of the mask unit 30, the first support member 21 and the second support member 22, and make at least two of the mask unit 30, the first support member 21 and the second support member 22 contact each other, and then weld at least two of the mask unit 30, the first support member 21 and the second support member 22 that are in contact with each other through the welding sub-device. The implementation scheme and beneficial effects include: 1), such as Figures 7 to 9 As shown, the mask unit 30 and the second support member 22 that are in contact are welded to eliminate the gap between the second support member 22 and the mask unit 30, thereby preventing the evaporated organic material from being evaporated to an area outside the preset area through the first gap JX1, improving the accuracy of the film stacking of the light-emitting material, improving the precision and accuracy of the evaporation process, and improving or avoiding the problem of color mixing of the display panel; 2) In some embodiments, the second support member 22 is located on a side of the first support member 21 away from the mask unit 30 (with the second support member 22 on the side of the first support member 21 away from the mask unit 30). Figures 7 to 9 Different), welding the mask unit 30 and the first support member 21 that are arranged in contact can eliminate the gap between the first support member 21 and the mask unit 30, and can also prevent the evaporated organic material from being evaporated to an area outside the preset area through the gap, thereby improving or avoiding the problem of color mixing on the display panel; 3) In some embodiments, welding the first support member 21 and the second support member 22 that are arranged in contact can enhance the supporting and shielding effects of the first support member 21 and the second support member 22 on the mask unit 30, for example, reducing or avoiding the first gap JX1, thereby improving the precision and accuracy of the evaporation process; 4) In some embodiments, as described in some subsequent embodiments, such as Figures 10 to 12 As shown, the first support member 21 and the second support member 22 are welded and part of the support member 20 is cut and removed to form the evaporation areas 20a of different sizes (such as Fig.12As shown), a mask structure can be applied to the manufacture of display panels of different sizes, and a mask structure can be transformed into a vapor deposition suitable for display panel products of different sizes, thereby reducing the manufacturing cost of display panels of different sizes; 5) In some embodiments, the mask unit 30 and the first support member 21 that are arranged in contact are welded, and the first support member 21 and the second support member 22 that are arranged in contact are welded, which can simultaneously play the role of removing the gap and improving the support of the support member 20 to the mask unit 30. Based on at least one of the above five aspects, the embodiment of the present application can greatly improve the performance of the mask structure.

[0058] In some embodiments, the auxiliary sub-device 200 includes a contact component 51, a magnetic suction plate 53, and a magnetic force generator 54. The contact component 51 is used to contact the support member 20 or the mask unit 30; the magnetic suction plate 53 is disposed on one side of the contact component 51, and the magnetic suction plate 53 is used to magnetically absorb at least two of the mask unit 30, the first support member 21, and the second support member 22; the magnetic force generator 54 is disposed on the side of the magnetic suction plate 53 away from the contact component 51, and the magnetic force generator 54 is used to control the magnitude of the magnetic force in the magnetic suction plate 53.

[0059] For example, Figure 7 and Figure 8 As shown, the contact component 51 is used to contact the support member 20 or the mask unit 30. In the stretching process of the mask structure, the magnetic suction plate 53 and the magnetic generator 54 are located on the side of the contact component 51 away from the support member 20 or the mask unit 30, but it is not limited to this.

[0060] By way of example, the material of the contact component 51 includes non-metallic materials, including but not limited to glass, quartz, and the like.

[0061] For example, the magnetic attraction plate 53 may include an electromagnet, and the magnetic strength and / or magnetic polarity of the magnetic attraction plate 53 may be regulated by controlling the magnitude and direction of the current.

[0062] For example, the magnetic force generator 54 may include a magnetic control unit, and the magnetic force generator 54 is electrically connected to the magnetic suction plate 53 to control the magnitude and / or direction of the current flowing through the magnetic suction plate 53, thereby controlling the magnetic magnitude and / or magnetic polarity of the magnetic suction plate 53. The magnetic force generator 54 may be disposed adjacent to or in contact with the magnetic suction plate 53, or the magnetic force generator 54 may not be disposed adjacent to or in contact with the magnetic suction plate 53, and the arrangement position of the magnetic force generator 54 is not limited herein.

[0063] In some embodiments, the auxiliary sub-device 200 further includes a moving part 57, a lifting part 55, and a distance sensor 52. The moving part 57 is disposed on one side of the contact part 51, and is used to control the auxiliary sub-device 200 to move in a direction parallel to the plane where the mask unit 30 is located; the lifting part 55 is disposed on one side of the contact part 51, and is used to control the auxiliary sub-device 200 to move in a direction perpendicular to the plane where the mask unit 30 is located; the distance sensor 52 is disposed on one side of the contact part 51, and is used to detect and determine the relative position relationship between the auxiliary sub-device 200 and at least two of the mask unit 30, the first support member 21, and the second support member 22.

[0064] For example, the distance sensor 52 is used to detect and determine the relative positional relationship between the auxiliary sub-device 200 and at least two of the mask unit 30, the first support member 21, and the second support member 22. For example, the distance sensor 52 can detect and determine the positional relationship between the auxiliary sub-device 200 and the first support member 21; for example, the distance sensor 52 can detect and determine whether the auxiliary sub-device 200 is in contact with the first support member 21. The distance sensor 52 can be a light detector, and the specific type of the detector is not limited, as long as it can achieve distance detection.

[0065] For example, Figure 2 and Figure 3 As shown, a plurality of distance sensors 52 can be arranged on the auxiliary sub-device 200, and the plurality of distance sensors 52 can be respectively arranged on a plurality of sides or a plurality of angular positions of the auxiliary sub-device 200, so that the detection and collection of the relative position relationship between the auxiliary sub-device 200 and at least two of the mask unit 30, the first support member 21 and the second support member 22 can be more comprehensive and accurate.

[0066] For example, the moving component 57 is used to control the auxiliary sub-device 200 to move in a direction parallel to the plane where the mask unit 30 is located. The moving component 57 may include a guide rail, a drive motor, a slider and / or a roller. The guide rail may be a groove or a ridge. The structure of the moving component 57 is not limited here, as long as it can realize the control of the auxiliary sub-device 200 to move in a direction parallel to the plane where the mask unit 30 is located.

[0067] For example, the lifting component 55 is used to control the auxiliary sub-device 200 to move in a direction perpendicular to the plane where the mask unit 30 is located. The lifting component 55 may include a guide rail, a lifting cylinder, a base, and a lifting arm disposed on the base, and / or a driving motor. The structure of the lifting component 55 is not limited here, as long as it can realize the control of the auxiliary sub-device 200 to move in a direction perpendicular to the plane where the mask unit 30 is located.

[0068] For example, in some embodiments, the moving component 57 and the lifting component 55 are independent structural components. In other embodiments, the moving component 57 and the lifting component 55 are the same structural component, for example, one structural component is a moving and lifting component, and the moving and lifting component has the functions of the moving component 57 and the lifting component 55 at the same time.

[0069] For example, after the web stretching process is completed, the auxiliary sub-device 200 can be moved out by the moving component 57 and the lifting component 55 .

[0070] For example, in some embodiments, the auxiliary sub-device 200 further includes a connection component 56, which is connected to the control component by wire or wirelessly to enable the auxiliary sub-device 200 to be controlled in a preset manner (for example, to control the movement or motion of the auxiliary sub-device 200), and the control component may include a computing component in a subsequent embodiment. For example, in some embodiments, the connection component 56 is connected to the net-stretching machine sub-device by wire or wirelessly to break up the entire net-stretching process and regenerate a new net-stretching method.

[0071] For example, Figure 2 and Figure 3 The configuration of some or all components of the auxiliary sub-device 200 is illustrated, the magnetic suction plate 53 is disposed on one side of the contact component 51, the magnetic force generator 54 is disposed on the side of the magnetic suction plate 53 away from the contact component 51, the lifting component 55 is disposed on the side of the magnetic force generator 54 away from the contact component 51, the connecting component 56 is disposed on the side of the lifting component 55 away from the contact component 51, the moving component 57 is disposed on the side of the connecting component 56 away from the contact component 51, and the distance sensor 52 is disposed around the contact component 51. However, the structure of the auxiliary sub-device 200 is not limited to Figure 2 and Figure 3 As shown, for example, the connecting member 56 is located at Figure 2 and Figure 3 The structure is outside the shown structure and is connected to the auxiliary sub-device 200 by wire or wirelessly, for example, the moving component 57 and the lifting component 55 are adjacent or connected structures, for example, the moving component 57 and the lifting component 55 are the same structural component.

[0072] In some embodiments, the auxiliary sub-device 200 also includes a computing component for determining the coordinates of the welding positions of at least two of the mask unit 30, the first support member 21, and the second support member 22 based on the sizes and preset relative position relationships of at least two of the mask unit 30, the first support member 21, and the second support member 22.

[0073] For example, the computing unit may be a computer and / or computer software, etc., and therefore is not shown in the figure, as long as it can be realized to determine the coordinates of the welding positions of at least two of the mask unit 30, the first support member 21, and the second support member 22 according to the size and preset relative position relationship of at least two of the mask unit 30, the first support member 21, and the second support member 22. For example, after the mask unit 30, the first support member 21, and the second support member 22 are fixedly installed on the mask frame 10, the coordinates of the welding points of the second support member 22 and the mask unit 30 are determined according to the relative position relationship between the second support member 22 and the mask unit 30 to eliminate the first gap JX1.

[0074] Based on the same application concept, the present application also provides a method for stretching a mask structure, which can apply any of the above-mentioned mask structures 100, and can use any of the above-mentioned mask structure stretching devices or auxiliary sub-devices 200. The method for stretching a mask structure includes: Figures 7 to 9 The first mask structure of the example is a method of stretching the screen and Figures 10 to 12 The second mask structure is shown in the example. Figure 4 As shown, the method for stretching a mask structure includes: step S100, step S200, step S300, step S400, step S500, step S600, step S700 and step S800.

[0075] Step S100: providing a mask frame, a plurality of support members and a plurality of mask units.

[0076] Illustratively, a mask frame 10 , a plurality of support members 20 , and a plurality of mask units 30 are provided.

[0077] Step S200, providing a network machine device.

[0078] Step S300, providing an auxiliary sub-device.

[0079] By way of example, an auxiliary sub-device is provided, and the auxiliary sub-device may be any of the auxiliary sub-devices 200 described above.

[0080] Step S400, providing a welding sub-device.

[0081] Illustratively, a welding sub-device is provided.

[0082] Step S500: fix the plurality of support members on the mask frame by using the screen stretching device, wherein the plurality of support members include a plurality of first support members spaced apart along a first direction, and a plurality of second support members spaced apart along a second direction.

[0083] For example, a plurality of support members 20 are fixedly mounted on the mask frame 10 by a web stretching device, and the plurality of support members 20 include a plurality of first support members 21 spaced apart along a first direction X, and a plurality of second support members 22 spaced apart along a second direction Y.

[0084] Step S600: fix the plurality of mask units on the mask frame by using the screen stretching device, wherein the mask units are located on one side of the plurality of support members.

[0085] For example, a plurality of mask units 30 are fixedly mounted on the mask frame 10 by a web stretching device, and the mask units 30 are located on one side of the plurality of support members 20 .

[0086] Step S700: Adsorb at least two of the mask unit, the first support member, and the second support member by the auxiliary sub-device, and place at least two of the mask unit, the first support member, and the second support member in contact with each other.

[0087] For example, at least two of the mask unit 30 , the first support member 21 , and the second support member 22 are adsorbed by the auxiliary sub-device 200 , and at least two of the mask unit 30 , the first support member 21 , and the second support member 22 are placed in contact with each other.

[0088] Step S800: welding at least two of the mask unit, the first support member, and the second support member that are arranged in contact with each other by using the welding sub-device.

[0089] Illustratively, at least two of the mask unit 30 , the first support member 21 , and the second support member 22 that are disposed in contact are welded by the welding sub-device.

[0090] In some embodiments, before the auxiliary sub-device 200 adsorbs at least two of the mask unit 30, the first support member 21, and the second support member 22 (step S700), as shown in FIG. Figure 7 and Figure 8 As shown, or as Fig.10 and Fig.11 As shown, it also includes: step S671, step S672 and step S673.

[0091] In step S671, the coordinates of the welding positions of at least two of the mask unit 30, the first support member 21 and the second support member 22 are determined by the computing unit in the auxiliary sub-device 200 according to the sizes and preset relative position relationship of at least two of the mask unit 30, the first support member 21 and the second support member 22.

[0092] Step S672, as Figure 7 , or Fig.10As shown, the auxiliary sub-device 200 is controlled to move in a direction parallel to the plane where the mask unit 30 is located by the moving component 57 in the auxiliary sub-device 200, so that the auxiliary sub-device 200 moves to one side of the welding position.

[0093] Step S673, as Figure 7 , or Fig.10 and Fig.11 As shown, the auxiliary sub-device 200 is controlled to move in a direction perpendicular to the plane where the mask unit 30 is located through the lifting component 55 in the auxiliary sub-device 200, so that the contact component 51 in the auxiliary sub-device 200 reaches a preset position corresponding to the welding position.

[0094] In some embodiments, before controlling the movement of the auxiliary sub-device 200 by the moving component 57 and the lifting component 55 (steps S672 and S673), it includes: turning off the magnetic force in the magnetic suction plate 53 in the auxiliary sub-device 200 by the magnetic force generator 54 in the auxiliary sub-device 200.

[0095] In some embodiments, at least two of the mask unit 30, the first support member 21, and the second support member 22 are adsorbed by the auxiliary sub-device 200 (step S700), including: the magnetic force in the magnetic suction plate 53 opened by the magnetic force generator 54, the magnetic suction plate 53 adsorbs at least two of the mask unit 30, the first support member 21, and the second support member 22, and at least two of the mask unit 30, the first support member 21, and the second support member 22 are contacted and arranged.

[0096] For example, before step S700, the magnetic force in the magnetic suction plate 53 in the auxiliary sub-device 200 is turned off by the magnetic force generator 54 in the auxiliary sub-device 200, and then the movement of the auxiliary sub-device 200 is controlled by the moving component 57 and the lifting component 55, so that the auxiliary sub-device 200 reaches a preset position to prevent the magnetic suction plate 53 from generating magnetic force to affect the position of the mask unit 30, the first support member 21 and the second support member 22, for example, to prevent the magnetic suction plate 53 from generating magnetic force to cause unwanted deformation of the mask unit 30, the first support member 21 and the second support member 22.

[0097] For example, in step S700, the magnetic force in the magnetic suction plate 53 is turned on by the magnetic force generator 54, so that the magnetic suction plate 53 absorbs at least two of the mask unit 30, the first support member 21 and the second support member 22, and makes at least two of the mask unit 30, the first support member 21 and the second support member 22 contact each other, so as to prepare for the subsequent process steps.

[0098] In some embodiments, in the first mask structure stretching method, such as Figure 7 and Figure 8As shown, at least two of the mask unit 30, the first support member 21 and the second support member 22 are adsorbed by the auxiliary sub-device 200 (step S700), including: adsorbing the second support member 22 and the mask unit 30, and making the second support member 22 and the mask unit 30 overlap and contact each other, and the second support member 22 is located on the side of the first support member 21 close to the mask unit 30. Fig. 9 As shown, at least two of the mask unit 30 , the first support member 21 and the second support member 22 that are disposed in contact are welded by a welding sub-device (step S800 ), including: welding the second support member 22 and the mask unit 30 that are stacked and disposed in contact.

[0099] For example, in the first mask structure stretching method, as Figures 7 to 9 As shown, Fig. 9 The figure shows the state after the second support member 22 and the mask unit 30 are stacked and contacted and welded. Fig. 9 The welding metal is not shown in the figure. The mask unit 30 and the second support member 22 that are arranged in contact are welded to eliminate the gap (first gap JX1) between the second support member 22 and the mask unit 30, thereby preventing the evaporated organic material from being evaporated to an area outside the preset area through the first gap JX1, improving the accuracy of the film layer stacking of the light-emitting material, improving the precision and accuracy of the evaporation process, and improving or avoiding the problem of color mixing on the display panel.

[0100] It should be noted that in the first mask structure stretching method, in some other embodiments, the second support member 22 is located on a side of the first support member 21 away from the mask unit 30 (with the second support member 22 being located on the side of the first support member 21 away from the mask unit 30). Figures 7 to 9 Different), welding the mask unit 30 and the first support member 21 which are arranged in contact can eliminate the gap between the first support member 21 and the mask unit 30, and can also prevent the evaporated organic material from being evaporated to the area outside the preset area through the gap, thereby improving or avoiding the problem of color mixing of the display panel.

[0101] In some embodiments, in the second mask structure stretching method, such as Fig.10 and Fig.11 As shown, at least two of the mask unit 30, the first support member 21, and the second support member 22 are adsorbed by the auxiliary sub-device 200 (step S700), including: adsorbing the first support member 21 and the second support member 22, and making the first support member 21 and the second support member 22 overlap and contact each other. At least two of the mask unit 30, the first support member 21, and the second support member 22 that are disposed in contact are welded by the welding sub-device (step S800), including: welding the first support member 21 and the second support member 22 that are overlapped and contacted each other.

[0102] For example, in some embodiments, in the stretching method of the second mask structure, the first support member 21 and the second support member 22 that are arranged in contact are welded, which improves the supporting and shielding effect of the first support member 21 and the second support member 22 on the mask unit 30, such as reducing or avoiding the first gap JX1, thereby improving the precision and accuracy of the evaporation process.

[0103] For example, in some other embodiments, in the second mask structure stretching method, such as Figures 10 to 12 As shown, after welding the stacked and contacting first support member 21 and the second support member 22, the method further includes: cutting off a portion of at least one of the first support member 21 and the second support member 22. The first support member 21 and the second support member 22 are welded and contacted, and a portion of the support member 20 is cut (for example, laser cutting) and removed. Fig.11 As shown, the support member 20 is cut at the first cutting point QD1 to form evaporation regions 20a of different sizes (such as Fig.12 As shown), a mask structure can be suitable for the manufacture of display panels of different sizes, and a mask structure can be transformed into a vapor deposition suitable for display panel products of different sizes, thereby reducing the manufacturing cost of display panels of different sizes. Based on the above four aspects, the embodiment of the present application can greatly improve the performance of the mask structure. It should be noted that after cutting and removing part of the support member 20, the mask unit 30 is also fixedly installed on the mask frame 10.

[0104] In some embodiments, at least two of the mask unit 30, the first support member 21, and the second support member 22 are adsorbed by the auxiliary sub-device 200 (step S700), including: the auxiliary sub-device 200 adsorbs at least two of the mask unit 30, the first support member 21, and the second support member 22 on a side of the support member 20 away from the mask unit 30.

[0105] By way of example, in some embodiments, the first support member 21 and the second support member 22 are fixedly mounted on one side of the mask frame 10, the mask unit 30 is fixedly mounted on a side of the first support member 21 and the second support member 22 away from the mask frame 10, and the auxiliary sub-device 200 adsorbs at least two of the mask unit 30, the first support member 21 and the second support member 22 on a side of the support member 20 away from the mask unit 30, so as to realize the mask structure stretching method of any one of the above-mentioned embodiments.

[0106] Based on the same application concept, the present application also provides a display panel, which can be manufactured using a stretching device with any of the mask structures described above.

[0107] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0108] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. A screen-stretching device of a mask structure, characterized in that: The mask structure includes a mask frame, a plurality of support members and a plurality of mask units, and the net stretching device includes: A net stretching device, used for fixing the plurality of the supporting members and the plurality of the mask units on the mask frame, wherein the mask unit is located on one side of the plurality of the supporting members, and the plurality of the supporting members include a plurality of first supporting members spaced apart along a first direction, and a plurality of second supporting members spaced apart along a second direction; an auxiliary sub-device, used for adsorbing at least two of the mask unit, the first support member and the second support member, and making at least two of the mask unit, the first support member and the second support member contact each other; The welding sub-device is used to weld at least two of the mask unit, the first support member and the second support member that are arranged in contact with each other.

2. The net stretching device of the mask structure according to claim 1, characterized in that: The auxiliary sub-device comprises: A contact component, used for contacting the support member or the mask unit; A magnetic suction plate, disposed on one side of the contact component, and used for magnetically adsorbing at least two of the mask unit, the first support member, and the second support member; The magnetic force generator is arranged on a side of the magnetic suction plate away from the contact component, and the magnetic force generator is used to control the magnitude of the magnetic force in the magnetic suction plate.

3. The net stretching device of the mask structure according to claim 2, characterized in that: The auxiliary sub-device also includes: A moving component, disposed on one side of the contact component, and used for controlling the auxiliary sub-device to move in a direction parallel to the plane where the mask unit is located; A lifting component, disposed on one side of the contact component, and used for controlling the auxiliary sub-device to move in a direction perpendicular to the plane where the mask unit is located; A distance sensor is arranged at one side of the contact component, and is used to detect and determine the relative position relationship between the auxiliary sub-device and at least two of the mask unit, the first support member and the second support member.

4. The net stretching device of the mask structure according to claim 2, characterized in that: The auxiliary sub-device also includes: A computing component is used to determine the coordinates of the welding positions of at least two of the mask unit, the first support member and the second support member according to the sizes and preset relative position relationship of at least two of the mask unit, the first support member and the second support member.

5. A method for stretching a mask structure, characterized in that: include: Providing a mask frame, a plurality of support members and a plurality of mask units; Provide a network machine device; providing an auxiliary sub-device; Providing a welding sub-device; The plurality of support members are fixedly mounted on the mask frame by the net stretching device, wherein the plurality of support members include a plurality of first support members spaced apart along a first direction, and a plurality of second support members spaced apart along a second direction; The plurality of mask units are fixedly mounted on the mask frame by the net stretching device, and the mask units are located on one side of the plurality of support members; Adsorbing at least two of the mask unit, the first support member, and the second support member by the auxiliary sub-device, and placing at least two of the mask unit, the first support member, and the second support member in contact with each other; At least two of the mask unit, the first support member, and the second support member that are arranged in contact are welded by the welding sub-device.

6. The method for stretching a mask structure according to claim 5, characterized in that: Before the auxiliary sub-device adsorbs at least two of the mask unit, the first support member, and the second support member, the method further includes: Determining the coordinates of welding positions of at least two of the mask unit, the first support member, and the second support member according to the sizes and a preset relative position relationship of at least two of the mask unit, the first support member, and the second support member by means of a computing unit in the auxiliary sub-device; Controlling the auxiliary sub-device to move in a direction parallel to the plane where the mask unit is located by a moving component in the auxiliary sub-device, so that the auxiliary sub-device moves to one side of the welding position; The auxiliary sub-device is controlled to move in a direction perpendicular to the plane where the mask unit is located by means of a lifting component in the auxiliary sub-device, so that the contact component in the auxiliary sub-device reaches a preset position corresponding to the welding position.

7. The method for stretching a mask structure according to claim 6, characterized in that: Before controlling the movement of the auxiliary sub-device by the moving component and the lifting component, the method includes: shutting off the magnetic force in the magnetic suction plate in the auxiliary sub-device by the magnetic force generator in the auxiliary sub-device; The method of adsorbing at least two of the mask unit, the first support member, and the second support member by the auxiliary sub-device includes: turning on the magnetic force in the magnetic suction plate by the magnetic force generator, the magnetic suction plate adsorbing at least two of the mask unit, the first support member, and the second support member, and making at least two of the mask unit, the first support member, and the second support member contact each other.

8. The method for stretching a mask structure according to claim 5, characterized in that: The step of adsorbing at least two of the mask unit, the first support member and the second support member by the auxiliary sub-device comprises: adsorbing the second support member and the mask unit, and making the second support member and the mask unit overlap and contact each other, and the second support member is located on a side of the first support member close to the mask unit; The step of welding at least two of the mask unit, the first support member, and the second support member that are disposed in contact with each other by the welding sub-device includes: welding the second support member and the mask unit that are stacked and disposed in contact with each other.

9. The method for stretching a mask structure according to claim 5, characterized in that: The step of adsorbing at least two of the mask unit, the first support member, and the second support member by the auxiliary sub-device includes: adsorbing the first support member and the second support member, and making the first support member and the second support member overlap and contact each other; The step of welding at least two of the mask unit, the first support member, and the second support member that are arranged in contact with each other by the welding sub-device includes: welding the first support member and the second support member that are stacked and arranged in contact with each other.

10. The method for stretching a mask structure according to claim 5, characterized in that: The method of adsorbing at least two of the mask unit, the first support member and the second support member by the auxiliary sub-device includes: The auxiliary sub-device absorbs at least two of the mask unit, the first support member, and the second support member on a side of the support member away from the mask unit.

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