Display device manufacturing apparatus and display device manufacturing method

Abstract

The invention provides a manufacturing apparatus of a display device and a manufacturing method of the display device. An apparatus for manufacturing a display device may include: a base including a first side and a second side opposite the first side; a first frame disposed on the first side of the base and capable of being combined with a stretchable film; a second frame disposed adjacent to the base, capable of being coupled to the first frame, and including one surface and the other surface; and a support portion disposed adjacent to the first side of the base portion and in contact with the other surface of the second frame, in which the manufacturing apparatus is operable in a frame bonding mode and a film stretching mode, when the manufacturing apparatus is operated in the frame bonding mode, the film stretching mode is in contact with the second frame, and when the manufacturing apparatus is operated in the film stretching mode, the film stretching mode is in contact with the second frame. The first frame and the second frame may be coupled to each other, and the first frame and the second frame may move together in a direction from the first side toward the second side when the manufacturing apparatus operates in the film stretching mode.

Description

Technical Field

[0001] The present disclosure relates to a manufacturing device of a display device and a manufacturing method of a display device. Background Art

[0002] Recently, as the interest in information display increases, research and development of display devices is continuing. In particular, as the demand for high-quality display devices increases, discussions on display devices including light-emitting elements having micrometer-level or nanometer-level are actively underway.

[0003] In order to manufacture a display device including a light emitting element, the light emitting element needs to be transferred onto a substrate of a display panel. At this time, the light emitting element may be preferably transferred in a manner of being spaced apart at a certain interval.

[0004] In order to be able to control the interval between the light emitting elements, a method of stretching a stretchable film after arranging the light emitting elements on the film may be used.

[0005] The stretchable film needs to be isotropically stretched so that the light-emitting elements can be spaced apart from each other at appropriate intervals. Also, the stretchable film needs to be tightly fixed to a stretching device for operating the stretchable film. Therefore, the development of a stretching device that meets the corresponding conditions is being continuously carried out. Summary of the invention

[0006] A technical problem of the present disclosure is to provide a manufacturing device and a manufacturing method of a display device that can automatically fix a stretchable film and can isotropically stretch the stretchable film.

[0007] According to an embodiment of the present disclosure, a manufacturing device for a display device may include: a base, including a first side and a second side opposite to the first side; a first frame, arranged on the first side of the base and capable of being combined with a stretchable film; a second frame, arranged adjacent to the base, capable of being combined with the first frame, and including a surface and another surface; and a supporting portion, arranged adjacent to the first side of the base and in contact with the other surface of the second frame, wherein the manufacturing device is capable of operating in a frame combining mode and a film stretching mode, and when the manufacturing device is operated in the frame combining mode, the first frame and the second frame can be combined with each other, and when the manufacturing device is operated in the film stretching mode, the first frame and the second frame can move together in a direction from the first side toward the second side.

[0008] According to an embodiment, the second frame may include a groove, and the manufacturing device may further include: a fixing ring arranged on the groove.

[0009] According to an embodiment, the fixing ring may include one or more materials selected from rubber, silicone and elastic fiber.

[0010] According to an embodiment, the second frame may have a ring shape including an opening portion, and the fixing ring may be an O-ring.

[0011] According to an embodiment, the second frame may include a fixing portion hole, and the manufacturing apparatus may further include: a fixing portion coupled to the first frame, wherein the fixing portion may be inserted into the fixing portion hole and coupled to the fixing portion hole.

[0012] According to an embodiment, the second frame may further include: an expansion part adjacent to the fixing part hole; and an air injection part connected to the expansion part.

[0013] According to an embodiment, the first frame may include: a frame portion; a pressurizing portion arranged on the frame portion; a first pad arranged between the frame portion and the pressurizing portion; and a second pad combined with the frame portion, wherein the first pad and the second pad may be vacuum pads.

[0014] According to an embodiment, the manufacturing device may further include: a rotating part connected to the base; and an auxiliary part arranged on the rotating part, wherein the auxiliary part may be in contact with the supporting part.

[0015] A manufacturing device for a display device according to an embodiment of the present disclosure may include: a base including a first side and a second side opposite to the first side; a first frame arranged on the first side of the base and capable of being combined with a stretchable film; a fixing portion combined with the first frame; a second frame arranged adjacent to the base, capable of being combined with the first frame, and including a fixing portion hole; and a supporting portion inserted into the second frame along a horizontal direction, wherein the fixing portions can be inserted into the fixing portion holes and combined with each other.

[0016] According to an embodiment, the second frame may further include: an expansion part adjacent to the fixing part hole; and an air injection part connected to the expansion part and injected with air.

[0017] According to an embodiment, the second frame may include a groove, wherein the manufacturing device may further include: a fixing ring arranged on the groove and being an O-ring.

[0018] According to an embodiment, the second frame may include: a position alignment portion hole, wherein the manufacturing device may further include: a position alignment portion arranged at a position different from the fixing portion and combined with the first frame, wherein the position alignment portion can be inserted into the position alignment portion hole.

[0019] In a method for manufacturing a display device using a manufacturing device for a display device according to an embodiment of the present disclosure, the manufacturing device may include: a first frame capable of being combined with a stretchable film; a second frame capable of being combined with the first frame and including a surface and another surface; and a support portion in contact with the second frame, wherein the manufacturing method may include the following steps: stretching the stretchable film, wherein the step of stretching the stretchable film may include the following steps: the first frame is combined with the stretchable film; the second frame is combined with the first frame; and the first frame and the second frame move simultaneously, wherein the support portion may be in contact with the other surface of the second frame in the step of combining the second frame with the first frame, and the step of moving the first frame and the second frame simultaneously may include the following steps: the support portion is not in contact with the other surface of the second frame.

[0020] According to an embodiment, the second frame may include a fixing portion hole, and the manufacturing device may further include: a fixing portion combined with the first frame, wherein the step of combining the second frame with the first frame may include the following step: the fixing portion is inserted into the fixing portion hole.

[0021] According to an embodiment, the second frame may further include: an expansion part surrounding the fixing part hole; and an air injection part connected to the expansion part, wherein the step of combining the second frame with the first frame may include the following steps: when the fixing part is inserted into the fixing part hole, the air injection part injects air into the expansion part.

[0022] According to an embodiment, the second frame may further include a position alignment portion hole, and the manufacturing device may further include: a position alignment portion combined with the first frame, wherein when the position alignment portion is arranged in a manner overlapping with the position alignment portion hole, the fixing portion can be inserted into the fixing portion hole.

[0023] According to an embodiment, the manufacturing device may further include: a base, including a first side and a second side opposite to the first side; and a protrusion, arranged on the outer side surface of the base, wherein the step of simultaneously moving the first frame and the second frame may include the following steps: the first frame and the second frame move from the first side to the second side, wherein the first frame and the second frame can move until the second frame contacts the protrusion.

[0024] According to an embodiment, the second frame may include a groove, wherein the manufacturing device may further include: a fixing ring arranged on the groove, wherein when the first frame moves, the fixing ring and the stretchable film can be in contact.

[0025] According to an embodiment, the manufacturing device may further include a fixing pin, wherein the step of combining the first frame and the second frame may include the following steps: the fixing pin is inserted into the support part, wherein the step of simultaneously moving the first frame and the second frame may include the following steps: the fixing pin is taken out from the support part.

[0026] According to an embodiment, when the fixing part is taken out of the fixing part hole, the air injection part may discharge air from the expansion part.

[0027] According to an embodiment of the present disclosure, a manufacturing device of a display device and a manufacturing method of the display device that can automatically fix a stretchable film and can isotropically stretch the stretchable film can be provided. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a schematic plan view showing a display device according to an embodiment.

[0029] Figure 2 It is shown Figure 1 A schematic diagram of an example of a pixel.

[0030] Figure 3 is a schematic cross-sectional view showing an example of a display device.

[0031] Figure 4 is a sequence diagram showing a method for manufacturing a display device according to an embodiment.

[0032] Figure 5 is a schematic cross-sectional view of a stretchable film on which a light-emitting element is arranged.

[0033] Figure 6 is a schematic cross-sectional view showing a manufacturing apparatus of the display device according to the first embodiment.

[0034] Figure 7 is a schematic cross-sectional view showing a manufacturing apparatus of a display device according to a second embodiment.

[0035] Figure 8 is a schematic diagram showing a first frame included in the manufacturing apparatus of the display device.

[0036] Fig. 9 It is a schematic diagram showing an example of the pressurizing portion of the first frame.

[0037] Fig.10 is a schematic cross-sectional view showing a second frame included in the manufacturing apparatus of the display device.

[0038] Fig.11 is along Fig.10A schematic cross-sectional view taken along the line A-A'.

[0039] Fig.12 is along Fig.10 BB' cut-away view.

[0040] Fig.13 is a schematic cross-sectional view showing that the first frame and the second frame are combined.

[0041] Fig.14 1 is a sequential diagram showing a stretching step of a stretchable film according to an embodiment.

[0042] Fig.15 It is a schematic plan view for explaining the positional relationship between the light emitting element and the first frame.

[0043] Figures 16 to 18 The present invention is a schematic cross-sectional view showing a manufacturing step of a display device. DETAILED DESCRIPTION

[0044] The present disclosure may be varied and may have various forms, and specific embodiments are illustrated in the drawings and described in detail herein. However, this is not intended to limit the present disclosure to a specific disclosed form, and should be understood to include all changes, equivalents and substitutes included in the ideas and technical scope of the present disclosure.

[0045] The terms "first", "second" and the like can be used to describe various constituent elements, but the constituent elements are not limited to the terms. These terms are only used to distinguish one constituent element from another constituent element. For example, without departing from the scope of the present disclosure, the first constituent element can be named as the second constituent element, and similarly, the second constituent element can also be named as the first constituent element. Unless the context clearly indicates otherwise, the expression in the singular also includes the expression in the plural.

[0046] It should be understood in the present disclosure that the terms "including" or "having" are used to specify the existence of features, numbers, steps, operations, constituent elements, parts or combinations thereof recorded in the specification, without excluding in advance the existence or additional possibility of one or more other features, numbers, steps, operations, constituent elements, parts or combinations thereof. Furthermore, when a layer, film, region, plate or other part is located "on" another part, this includes not only the case where it is located "immediately above" another part, but also the case where other parts exist in the middle. Furthermore, in the present specification, when it is mentioned that a layer, film, region, plate or other part is formed on another part, the formation direction is not limited to the upper direction, but also includes the case where it is formed along the side or lower direction. On the contrary, when it is mentioned that a layer, film, region, plate or other part is located "below" another part, this includes not only the case where it is located "immediately below" another part, but also the case where other parts exist in the middle.

[0047] The present disclosure relates to a manufacturing device of a display device and a manufacturing method of a display device. Hereinafter, a manufacturing device of a display device and a manufacturing method of a display device according to an embodiment will be described with reference to the accompanying drawings.

[0048] Before describing the manufacturing apparatus of the display device according to the embodiment, referring to Figures 1 to 3 A display device 10 that can be manufactured using the display device manufacturing apparatus according to the embodiment will be described.

[0049] Figure 1 is a schematic plan view showing a display device according to an embodiment. Figure 2 It is shown Figure 1 A schematic diagram of an example of a pixel.

[0050] Reference Figure 1 The display device 10 is configured to output optical information. For example, the display device 10 is a device for displaying moving images or still images, and can be used not only as a display screen of portable electronic devices such as mobile phones, smart phones, tablet personal computers, smart watches, watch phones, mobile communication terminals, electronic notebooks, electronic books, portable multimedia players (PMP: portable multi media player), navigators, and ultra mobile PCs (UMPC: Ultra Mobile PC), but also as a display screen of various products such as televisions, notebook computers, monitors, billboards, and Internet of Things (IOT: internet of things) devices.

[0051] The display device 10 may be formed as a plane having a rectangular shape having a long side in a first direction DR1 and a short side in a second direction DR2 intersecting the first direction DR1. The corner where the long side in the first direction DR1 meets the short side in the second direction DR2 may be formed smoothly or at a right angle in a manner having a predetermined curvature. The plane shape of the display device 10 is not limited to a quadrilateral, and may be formed as other polygons, a circle, or an ellipse. The display device 10 may be formed flat, but is not limited thereto. For example, the display device 10 may include a curved surface portion formed at the left and right side ends and having a constant curvature or a varying curvature. In addition, the display device 10 may be formed flexibly in a manner that allows it to be bent, folded, curved, folded, or curled.

[0052] To display an image, the display device 10 may further include pixels PX, scan wiring extending along a first direction DR1, and data wiring extending along a second direction DR2. The pixels PX may be arranged in a matrix in the first direction DR1 and the second direction DR2.

[0053] In the present disclosure, the first direction DR1 may correspond to a row direction (or horizontal direction) of the pixels PX. The second direction DR2 may correspond to a column direction of the pixels PX. The third direction DR3 may be a normal direction of an image displayed by the display device 10.

[0054] like Figure 2 As shown, each pixel PX may include a plurality of sub-pixels SPX1 , SPX2 , and SPX3 . Figure 2 The case where each pixel PX includes three sub-pixels SPX1 , SPX2 , and SPX3 (ie, a first sub-pixel SPX1 , a second sub-pixel SPX2 , and a third sub-pixel SPX3 ) is illustrated, but the embodiments of the present specification are not limited thereto.

[0055] The first sub-pixel SPX1 , the second sub-pixel SPX2 , and the third sub-pixel SPX3 may be connected to one of the data wirings and at least one of the scan wirings.

[0056] Each of the first sub-pixel SPX1, the second sub-pixel SPX2, and the third sub-pixel SPX3 may have a rectangular, square, or diamond-shaped planar shape. Figure 2 As shown, each of the first sub-pixel SPX1, the second sub-pixel SPX2, and the third sub-pixel SPX3 may have a rectangular planar form having short sides in the first direction DR1 and long sides in the second direction DR2. Alternatively, according to an embodiment, each of the first sub-pixel SPX1, the second sub-pixel SPX2, and the third sub-pixel SPX3 may also have a square or diamond planar form including sides having the same length in the first direction DR1 and the second direction DR2.

[0057] like Figure 2 As shown, the first subpixel SPX1, the second subpixel SPX2 and the third subpixel SPX3 may be arranged along the first direction DR1. Alternatively, one of the second subpixel SPX2 and the third subpixel SPX3 and the first subpixel SPX1 may be arranged along the first direction DR1, and the remaining one and the first subpixel SPX1 may be arranged along the second direction DR2.

[0058] Alternatively, one of the first subpixel SPX1 and the third subpixel SPX3 and the second subpixel SPX2 may be arranged along the first direction DR1, and the remaining one and the second subpixel SPX2 may be arranged along the second direction DR2. Alternatively, one of the first subpixel SPX1 and the second subpixel SPX2 and the third subpixel SPX3 may be arranged along the first direction DR1, and the remaining one and the third subpixel SPX3 may be arranged along the second direction DR2.

[0059] The first sub-pixel SPX1 may emit a first light, the second sub-pixel SPX2 may emit a second light, and the third sub-pixel SPX3 may emit a third light. Here, the first light may be light of a red wavelength band, the second light may be light of a green wavelength band, and the third light may be light of a blue wavelength band. The red wavelength band may be a wavelength band of about 600nm to 750nm, the green wavelength band may be a wavelength band of about 480nm to 560nm, and the blue wavelength band may be a wavelength band of about 370nm to 460nm, but the embodiments of the present specification are not limited thereto.

[0060] Each of the first subpixel SPX1 , the second subpixel SPX2 , and the third subpixel SPX3 may include an inorganic light emitting element including an inorganic semiconductor as a light emitting element LE that emits light.

[0061] For example, the inorganic light emitting element may be a flip chip type micro LED (LED: Light Emitting Diode), but the embodiments of the present specification are not limited thereto. According to the embodiments, the inorganic light emitting element may have a size of nanometer or micrometer, and the inorganic light emitting element may have various forms.

[0062] like Figure 2As shown, the area of ​​the first sub-pixel SPX1, the area of ​​the second sub-pixel SPX2, and the area of ​​the third sub-pixel SPX3 may be substantially the same, but the embodiments of the present specification are not limited thereto. At least one of the area of ​​the first sub-pixel SPX1, the area of ​​the second sub-pixel SPX2, and the area of ​​the third sub-pixel SPX3 may be different from the other. Alternatively, two of the area of ​​the first sub-pixel SPX1, the area of ​​the second sub-pixel SPX2, and the area of ​​the third sub-pixel SPX3 may be substantially the same, and the remaining one may be different from the two. Alternatively, the area of ​​the first sub-pixel SPX1, the area of ​​the second sub-pixel SPX2, and the area of ​​the third sub-pixel SPX3 may be different from each other.

[0063] Figure 3 is a schematic cross-sectional view showing an example of a display device. Figure 3 The display device 10 may include a pixel circuit layer PCL and a light emitting element layer EML.

[0064] The pixel circuit layer PCL may be a layer including a pixel circuit for driving the light emitting element LE. The pixel circuit layer PCL may include a substrate, a metal layer for forming a pixel circuit, and an insulating layer arranged between the metal layers. According to an embodiment, the substrate may be a base substrate or a base component for supporting the display device 10. The substrate may be a rigid substrate of glass material. Alternatively, the substrate may be a flexible substrate capable of bending, folding, rolling, etc. In this case, the substrate may include an insulating material such as a polymer resin such as polyimide. According to an embodiment, the pixel circuit may include a thin film transistor. The pixel circuit may also include a storage capacitor. The pixel circuit may be electrically connected to the light emitting element LE to provide an electrical signal for causing the light emitting element LE to emit light.

[0065] The light emitting element layer EML may be arranged on the pixel circuit layer PCL. The light emitting element layer EML may include a pixel electrode PXE, a common electrode CE, and a light emitting element LE. Each of the first sub-pixel SPX1, the second sub-pixel SPX2, and the third sub-pixel SPX3 may include a light emitting element LE connected to the pixel electrode PXE and the common electrode CE. According to an embodiment, the light emitting element LE may include a first light emitting element LE1 configured to emit light of a first color and included in the first sub-pixel SPX1, a second light emitting element LE2 configured to emit light of a second color and included in the second sub-pixel SPX2, and a third light emitting element LE3 configured to emit light of a third color and included in the third sub-pixel SPX3. The pixel electrode PXE may be referred to as an anode electrode, and the common electrode CE may be referred to as a cathode electrode.

[0066] The pixel electrode PXE and the common electrode CE may be arranged on the pixel circuit layer PCL. Each pixel electrode PXE may be electrically connected to a thin film transistor of the pixel circuit layer PCL. Accordingly, a pixel voltage or an anode voltage controlled by the thin film transistor may be applied to the pixel electrode PXE.

[0067] Each common electrode CE may be electrically connected to a power wiring formed in the pixel circuit layer PCL, and accordingly, a power voltage of the power wiring may be applied to the common electrode CE.

[0068] The pixel electrode PXE and the common electrode CE may include a metal substance with high reflectivity such as a stacked structure of aluminum and titanium (Ti / Al / Ti), a stacked structure of aluminum and ITO (ITO / Al / ITO), an APC alloy, and a stacked structure of an APC alloy and ITO (ITO / APC / ITO). The APC alloy is an alloy of silver (Ag), palladium (Pd), and copper (Cu).

[0069] Figure 3 exemplifies a case where each light emitting element LE is a flip chip type micro LED in which the first contact electrode CTE1 and the second contact electrode CTE2 are arranged to face the pixel electrode PXE and the common electrode CE. However, as described above, the shape of the light emitting element LE is not necessarily limited thereto.

[0070] The light emitting element LE may include an inorganic substance such as GaN. Each of the lengths of the light emitting element LE in the first direction DR1, the lengths in the second direction DR2, and the lengths in the third direction DR3 may be several μm to several hundred μm. For example, each of the lengths of the light emitting element LE in the first direction DR1, the lengths in the second direction DR2, and the lengths in the third direction DR3 may be approximately 100 μm or less.

[0071] Each light emitting element LE may be a light emitting structure including an n-type semiconductor NSEM, an active layer MQW, a p-type semiconductor PSEM, a first contact electrode CTE1 , and a second contact electrode CTE2 .

[0072] A portion of the n-type semiconductor NSEM may be disposed on the active layer MQW. A portion of the n-type semiconductor NSEM may be disposed on the second contact electrode CTE2. According to an embodiment, a surface of the n-type semiconductor NSEM may face the display surface. The n-type semiconductor NSEM may be formed using GaN doped with an n-type conductive dopant such as Si, Ge, Se, Sn, etc.

[0073] The active layer MQW may be arranged on a portion of a surface of an n-type semiconductor NSEM. The active layer MQW may be between the n-type semiconductor NSEM and the p-type semiconductor PSEM. The active layer MQW may include a material having a single quantum well structure or a multi-quantum well structure. In the case where the active layer MQW includes a material having a multi-quantum well structure, it may also be a structure in which a plurality of well layers and barrier layers are alternately stacked with each other. In this case, the well layer may be formed using InGaN, and the barrier layer may be formed using GaN or AlGaN, but is not limited thereto. Alternatively, the active layer MQW may be a structure in which a semiconductor material having a high band gap and a semiconductor material having a low band gap are alternately stacked with each other, or may include different III to V group semiconductor materials according to the wavelength band of the emitted light.

[0074] The p-type semiconductor PSEM may be disposed on a surface of the active layer MQW and may be formed of GaN doped with a p-type conductive dopant such as Mg, Zn, Ca, Sr, Ba, and the like.

[0075] The first contact electrode CTE1 may be disposed on the p-type semiconductor PSEM, and the second contact electrode CTE2 may be disposed on another portion of a surface of the n-type semiconductor NSEM. The other portion of a surface of the n-type semiconductor NSEM on which the second contact electrode CTE2 is disposed may be disposed spaced apart from a portion of a surface of the n-type semiconductor NSEM on which the active layer MQW is disposed.

[0076] The first contact electrode CTE1 and the pixel electrode PXE may be bonded to each other through a conductive bonding member such as an anisotropic conductive film (ACF) or an anisotropic conductive paste (ACP). Alternatively, the first contact electrode CTE1 and the pixel electrode PXE may be bonded to each other through a soldering process.

[0077] In addition, a bank BNK covering the edge of the pixel electrode PXE and the edge of the common electrode CE may be arranged on the pixel circuit layer PCL. The bank BNK may be formed of an organic film such as acryl resin, epoxy resin, phenol resin, polyamide resin, or polyimide resin.

[0078] The insulating film INS may be disposed on the bank BNK. The insulating film INS may cover the edge of the pixel electrode PXE and the edge of the common electrode CE. The insulating film INS may be formed using an inorganic film (eg, a silicon nitride layer, a silicon oxynitride layer, a silicon oxide layer, a titanium oxide layer, or an aluminum oxide layer).

[0079] Next, refer to Figures 4 to 18 The manufacturing apparatus 100 of the display device according to the embodiment and the manufacturing method of the display device 10 using the manufacturing apparatus 100 are described. The contents that may overlap with the above contents will be simplified or not repeated.

[0080] First, refer to Figure 4 and Figure 5 After briefly describing the manufacturing method of the display device 10, Figure 6 Next, individual steps of the method for manufacturing the display device 10 and a display device manufacturing apparatus 100 for manufacturing the display device 10 will be described in detail with reference to the drawings.

[0081] Figure 4 is a sequence diagram showing a method for manufacturing a display device according to an embodiment. Figure 5 is a schematic cross-sectional view of a stretchable film on which a light-emitting element is arranged.

[0082] Reference Figure 4 According to the embodiment, the manufacturing method of the display device may include: a step of arranging a light emitting element on a stretchable film (S100); a step of stretching the stretchable film (S200); and a step of transferring the light emitting element onto a pixel circuit layer (S300).

[0083] Reference Figure 4 and Figure 5 In the step (S100) of arranging the light emitting element on the stretchable film, the light emitting element LE may be arranged on the stretchable film SF. The light emitting element LE may be grown on the semiconductor substrate before being arranged on the stretchable film SF. The light emitting element LE grown on the semiconductor substrate may be moved from the semiconductor substrate (for example, by a carrier wafer) and arranged on the stretchable film SF. According to an embodiment, the semiconductor substrate may be a silicon wafer. However, the present disclosure is not limited thereto.

[0084] The stretchable film SF may include a variety of stretchable substances. For example, the stretchable film SF may include a stretchable elastic polymer. For example, the stretchable elastic polymer may include one or more of the group consisting of polyolefine, polyvinyl chloride (PVC: polyvinyl chloride), elastomeric silicone, elastomeric polyurethane, elastomeric polyisoprene, and polydimethylsiloxane. However, the present disclosure is not necessarily limited to the aforementioned examples.

[0085] The step of stretching the stretchable film (S200) may include using the manufacturing apparatus 100 of the display device (refer to Figure 6 ) A step of separating the grown light-emitting elements LE by a distance.

[0086] Experimentally, as the light emitting elements LE become smaller, there is a concern that the light emitting elements LE may be damaged when transferred to the pixel circuit layer PCL. Therefore, preferably, the light emitting elements LE are spaced apart on the stretchable film SF before being arranged on the pixel circuit layer PCL.

[0087] By stretching the stretchable film SF, the light emitting elements LE can be spaced apart from each other at a desired distance. By stretching the stretchable film SF, the light emitting elements LE on the stretchable film SF can be spaced apart from each other at a desired distance and arranged on the pixel circuit layer PCL.

[0088] The step of transferring the light emitting element onto the pixel circuit layer (S300) may include using a transfer device 200 (refer to Fig.18 ) A step of transferring the separated light emitting elements LE onto the pixel circuit layer PCL. The transfer device 200 can move the light emitting elements LE on the stretchable film SF onto the pixel circuit layer PCL.

[0089] Below, refer to Figures 6 to 13 A display device manufacturing apparatus 100 capable of stretching the stretchable film SF will be described.

[0090] Figure 6 is a schematic cross-sectional view showing a manufacturing apparatus of the display device according to the first embodiment.

[0091] Figure 7 is a schematic cross-sectional view showing a manufacturing apparatus of a display device according to a second embodiment. Figure 8 is a schematic diagram showing a first frame included in the manufacturing apparatus of the display device. Fig. 9It is a schematic diagram showing an example of the pressurizing portion of the first frame.

[0092] Fig.10 is a schematic cross-sectional view showing a second frame included in the manufacturing apparatus of the display device. Fig.11 is along Fig.10 A schematic cross-sectional view taken along the line A-A'. Fig.12 is along Fig.10 BB' cut-away view. Fig.13 is a schematic cross-sectional view showing that the first frame and the second frame are combined.

[0093] Reference Figure 6 The manufacturing apparatus 100 of the display device includes a first frame EXP1 and a second frame EXP2. The manufacturing apparatus 100 of the display device may further include a base BS, a position alignment portion AP, a fixing portion FP, a fixing ring ORG, a support portion ST, an auxiliary portion LDB, a rotating portion ROT, and a protruding portion PRU.

[0094] The base BS may include a first side C1 and a second side C2 opposite to the first side C1. The first side C1 may be an upper surface of the base BS, and the second side C2 may be a lower surface of the base BS.

[0095] The base BS may form a base frame of the display device manufacturing apparatus 100. For example, the base BS may provide a location where a portion of the display device manufacturing apparatus 100 may be arranged. According to an embodiment, when the stretchable film SF is stretched, the stretchable film SF may be arranged on one surface of the base BS. The base BS may include a rigid material, but is not limited thereto.

[0096] The first frame EXP1 may be disposed on the first side C1 of the base BS. The first frame EXP1 may be disposed on the stretchable film SF. The first frame EXP1 may be combined with the stretchable film SF.

[0097] The first frame EXP1 may fix the upper surface edge of the stretchable film SF. The first frame EXP1 may push the upper surface edge of the stretchable film SF. The first frame EXP1 may descend in the direction where the base BS is located in order to stretch the stretchable film SF.

[0098] The first frame EXP1 may be disposed on the base BS. The first frame EXP1 may be disposed on the stretchable film SF. The first frame EXP1 may be combined with the stretchable film SF.

[0099] According to an embodiment, the first frame EXP1 may be referred to as a first expanding member.

[0100] According to an embodiment, the first frame EXP1 may include a pressurizing part PRS, a first pad PD1, a frame part FRM, and a second pad PD2. Each of the pressurizing part PRS, the first pad PD1, the frame part FRM, and the second pad PD2 may be coupled to each other.

[0101] The pressurizing part PRS may be arranged on the first pad PD1, the frame part FRM, and the second pad PD2. The pressurizing part PRS may push the components arranged below the pressurizing part PRS in a downward direction (e.g., from the pressurizing part PRS toward the base BS). In the present disclosure, the downward direction is defined as a direction opposite to the third direction DR3.

[0102] Reference Figure 8 According to an embodiment, the pressurizing portion PRS may be a cylindrical member. The pressurizing portion PRS may include a pressurizing opening H1. The pressurizing portion PRS may include a circumferential side wall. According to an embodiment, the circumferential side wall may include the same outer surface EE1. However, the present disclosure is not limited thereto.

[0103] The pressurizing part PRS may have a shape corresponding to the frame part FRM arranged below the pressurizing part PRS. For example, the upper surface and the lower surface of the pressurizing part PRS may be consistent with the upper surface of the frame part FRM as a whole, and the pressurizing part PRS and the frame part FRM may have shapes consistent with each other. However, the present disclosure is not limited to this.

[0104] According to the embodiment, referring to Fig. 9 The pressurizing part PRS may also be a stepped cylindrical part. For example, the outer surface of the circumferential side wall of the pressurizing part PRS may have a first surface E1 and a second surface E2. The first surface E1 and the second surface E2 may have a shape connected in a stepped form.

[0105] The pressurizing portion PRS may also have a shape that is inconsistent with the frame portion FRM disposed below the pressurizing portion PRS. For example, the lower surface of the pressurizing portion PRS may be consistent with (e.g., correspond to) the upper surface of the frame portion FRM, but the upper surface of the pressurizing portion PRS may be inconsistent with the upper surface of the frame portion FRM. When viewed from a plane, an opening portion adjacent to the upper surface of the pressurizing portion PRS may overlap with the opening portion of the frame portion FRM as a whole.

[0106] The first pad PD1 may be bonded to the lower surface of the pressurizing part PRS. The first pad PD1 may be in contact with the lower surface of the pressurizing part PRS. The first pad PD1 may fix the pressurizing part PRS to the frame part FRM. According to an embodiment, the first pad PD1 may be a vacuum pad. However, the present disclosure is not limited thereto. The first pad PD1 may be an electrostatic pad.

[0107] The first pad PD1 may be disposed between the pressurizing portion PRS and the frame portion FRM. The first pad PD1 may be disposed to overlap edge regions of the pressurizing portion PRS and the frame portion FRM.

[0108] The frame portion FRM may be located at a lower portion of the pressurizing portion PRS. The frame portion FRM may be combined with the first pad PD1. The frame portion FRM may be combined with the pressurizing portion PRS by being combined with the first pad PD1.

[0109] The frame part FRM may fix the stretchable film SF. When the stretchable film SF is stretched, the frame part FRM may apply pressure to the stretchable film SF in a gravity direction (eg, a lower direction) to fix the edge of the upper surface of the stretchable film SF.

[0110] According to an embodiment, the frame part FRM may further include a space in which the second pad PD2 for bonding (or adsorbing) the stretchable film SF can be arranged. The space for arranging the second pad PD2 may be a space recessed from the lower surface of the frame part FRM.

[0111] The frame part FRM may include a frame opening part H2. According to an embodiment, the frame part FRM may be a cylindrical member. The frame part FRM may include a circumferential side wall. The circumferential side wall of the frame part FRM may include the same outer surface.

[0112] The frame opening H2 may have a shape corresponding to the pressurizing opening H1 and the upper surface of the base BS. For example, the pressurizing opening H1 and the frame opening H2 may be circular, and the upper surface of the base BS may be round.

[0113] Since the pressurizing opening H1 and the frame opening H2 have shapes corresponding to the upper surface of the base BS, when the first frame EXP1 descends, the first frame EXP1 can surround the outer side surface of the base BS (see FIG. Fig.17 ).

[0114] The second pad PD2 may be coupled to the frame portion FRM. The second pad PD2 may be disposed inside the frame portion FRM or at a lower portion of the frame portion FRM. The second pad PD2 may be disposed to overlap an edge region of the frame portion FRM.

[0115] The second pad PD2 may bond the stretchable film SF to the first frame EXP1. The second pad PD2 may be in contact with the frame portion FRM and the stretchable film SF. According to an embodiment, the second pad PD2 may be a vacuum pad. The stretchable film SF may be vacuum-adsorbed to the second pad PD2. However, the present disclosure is not limited thereto. The second pad PD2 may be an electrostatic pad.

[0116] The second frame EXP2 may be arranged at a lower portion of the first frame EXP1. At least a portion of the second frame EXP2 may be arranged on the base BS. At least a portion of the second frame EXP2 may be adjacent to the base BS. The second frame EXP2 may be arranged between the base BS and the first frame EXP1.

[0117] The second frame EXP2 may include one surface and another surface. The one surface of the second frame EXP2 may be a surface in contact with the stretchable film SF. The other surface of the second frame EXP2 may be a surface in contact with the base BS.

[0118] According to an embodiment, the second frame EXP2 may be referred to as a second tensile member.

[0119] The second frame EXP2 may fix the stretchable film SF. When the stretchable film SF is stretched, the second frame EXP2 may fix the edge of the lower surface of the stretchable film SF by applying pressure to the edge of the lower surface of the stretchable film SF. As the second frame EXP2 fixes the lower surface of the stretchable film SF, the stretchable film SF may be arranged between the first frame EXP1 and the second frame EXP2.

[0120] Reference Fig.10 , the second frame EXP2 may have a ring shape including an opening portion. However, the present disclosure is not limited thereto. The second frame EXP2 may also have a polygonal shape including an opening portion.

[0121] The second frame EXP2 may include a fixing portion hole FPH, a position alignment portion hole APH, and a groove HM.

[0122] The fixing hole FPH and the position alignment hole APH may be arranged at different positions from each other. The fixing hole FPH and the position alignment hole APH may be arranged adjacent to the edge region or boundary region of the second frame EXP2. The fixing hole FPH and the position alignment hole APH may be arranged at the outer contour of the groove HM. Figure 6 and Fig.10 , the fixing part hole FPH and the position alignment part hole APH may be arranged at an outer contour than a region of the second frame EXP2 overlapping with the stretchable film SF.

[0123] According to an embodiment, the fixing portion hole FPH may be provided in plural, whereby the second frame EXP2 may be more firmly fixed to the first frame EXP1. For example, the number of the fixing portion holes FPH may be 6 or more. However, the present disclosure is not limited thereto.

[0124] The groove HM may be formed at a position adjacent to the edge of the second frame EXP2. The groove HM may have a shape corresponding to the edge of the second frame EXP2. For example, when the second frame EXP2 has a ring shape, the groove HM may have a ring shape when viewed from a plane.

[0125] Reference Fig.11 The groove HM may be formed by recessing at least a portion of the upper surface of the second frame EXP2. The groove HM may provide a space in which the fixing ring ORG may be arranged. The groove HM may provide a space in which the fixing ring ORG may be inserted. Fig.11 , the cross section of the groove HM is shown as having a rectangular shape, but the present disclosure is not limited thereto. The cross section of the groove HM may also have a semicircular shape. Since the second frame EXP2 includes the groove HM, the second frame EXP2 may have a recessed space. The second frame EXP2 may have a shape in which at least a portion of the upper surface is recessed.

[0126] The fixing portion FP, the positioning portion AP, and the fixing ring ORG can be inserted into the fixing portion hole FPH, the positioning portion hole APH, and the groove HM, respectively.

[0127] The fixing ring ORG may be arranged on the groove HM. The fixing ring ORG may be coupled to the groove HM. The fixing ring ORG may have a shape corresponding to the groove HM so that the fixing ring ORG is tightly coupled to the groove HM. For example, in the case where the groove HM has an "O"-shaped ring shape, the fixing ring ORG may have an "O"-shaped ring shape. The fixing ring ORG may be an O-ring.

[0128] The fixing ring ORG can fix the stretchable film SF. For example, the fixing ring ORG can include one or more materials selected from rubber, silicone, and elastic fiber materials, so that the stretchable film SF does not slide when stretched.

[0129] Conventionally, there is no structure that can correspond to the fixing ring ORG, so it is difficult to fix the stretchable film SF when stretching it, and the stretchable film SF may be separated from the base BS. In addition, since the stretchable film SF is not fixed, it is difficult to stretch the stretchable film SF isotropically.

[0130] According to the manufacturing device 100 of the display device of the embodiment of the present disclosure, the fixing ring ORG can fix the stretchable film SF, and the stretchable film SF can not slide. As a result, the stretchable film SF can not be detached to the outside of the base BS, and the stretchable film SF can be stretched isotropically. In addition, in addition to the second frame EXP2, the fixing ring ORG can also fix the edge of the lower surface of the stretchable film SF, so that the stretchable film SF can be fixed more firmly.

[0131] The position alignment part AP may be a structure combined with the frame part FRM. The position alignment part AP may be inserted into the position alignment part hole APH. The position alignment part AP may provide information about the position where the first frame EXP1 may be combined with the second frame EXP2. For example, when the position alignment part AP connected to the first frame EXP1 is lowered from a position overlapping with the position alignment part hole APH, the position alignment part AP may be inserted into the position alignment part hole APH, and the first frame EXP1 and the second frame EXP2 may be combined with each other.

[0132] In the present disclosure, "overlap" is defined based on viewing on a plane. The plane may be defined based on a plane where the base BS is disposed. For example, the plane may extend along the first direction DR1 and may extend along the second direction DR2.

[0133] The fixing part FP may be a structure combined with the frame part FRM. The fixing part FP may be inserted into the fixing part hole FPH. The fixing part FP may combine the first frame EXP1 and the second frame EXP2. When the first frame EXP1 is lowered, the fixing part FP combined with the frame part FRM may be inserted into the fixing part hole FPH of the second frame EXP2.

[0134] The support portion ST may be arranged at the lower portion of the second frame EXP2. The support portion ST may be arranged at the side surface of the base BS. The support portion ST may support one end and the other end of the second frame EXP2. The support portion ST may be arranged to overlap with at least a portion of the second frame EXP2. The support portion ST may be arranged to overlap with one end and the other end of the second frame EXP2. The support portion ST may not overlap with the opening portion of the second frame EXP2. The support portion ST may be in contact with one end and the other end of the second frame EXP2. The support portion ST may be in contact with the other surface of the second frame EXP2.

[0135] According to an embodiment, the support portion ST may further include a fixing pin. The fixing pin of the support portion ST may be a configuration for more closely fixing the support portion ST and the second frame EXP2.

[0136] According to an embodiment, the support portion ST may include stainless steel (SUS: steel use stainless) However, the present disclosure is not limited thereto.

[0137] According to an embodiment, the manufacturing apparatus 100 of the display device may further include a sensor unit. The sensor unit may sense the descent and ascent of the first frame EXP1 to determine whether to release the coupling of the fixing pin of the support part ST and rotate the rotating part ROT. Also, the sensor unit may determine whether to inject air into the air injection part AIJ (see FIG. 1 ) described later. Fig.12 )middle.

[0138] In the past, there was no structure that could correspond to the support portion ST, so that before the second frame EXP2 was lowered, at least a portion of the second frame EXP2 could not be directly arranged on the base BS. Therefore, the second frame EXP2 for fixing the stretchable film SF was manually fixed to the stretchable film SF. For example, after the stretchable film SF was coupled to the first frame EXP1, the second frame EXP2 was fixed to the lower portion of the stretchable film SF. According to the structure of the conventional stretching device, after the second frame EXP2 was fixed in a manner of being directly arranged on the lower portion of the stretchable film SF, the second frame EXP2 could be lowered, and as the second frame EXP2 was lowered, the second frame EXP2 could be directly arranged on the base BS.

[0139] In the manufacturing device 100 of the display device according to the embodiment of the present disclosure, the support portion ST can support the second frame EXP2 so that at least a portion of the second frame EXP2 can be directly arranged on the base BS. As the second frame EXP2 is arranged on the base BS, when the first frame EXP1 descends and the lower surface of the stretchable film SF contacts the second frame EXP2, the second frame EXP2 can be automatically fixed to the stretchable film SF. In this regard, refer to Fig.13 , Fig.14 and Fig.16 This will be described later.

[0140] The auxiliary portion LDB may be disposed at a lower portion of the support portion ST. The auxiliary portion LDB may contact at least a portion of a lower surface of the support portion ST. The auxiliary portion LDB may contact the support portion ST. The auxiliary portion LDB may disperse the load of the support portion ST. The area of ​​the upper surface of the auxiliary portion LDB may be greater than the area of ​​the lower surface of the support portion ST.

[0141] The rotating portion ROT may be disposed at a lower portion of the supporting portion ST. The rotating portion ROT may be connected to the base portion BS. The rotating portion ROT may include a column portion parallel to the base portion BS and a supporting portion supporting the supporting portion ST.

[0142] The rotating part ROT may rotate the supporting part ST and the auxiliary part LDB. As the rotating part ROT rotates, the supporting part ST may not overlap with the first frame EXP1 and the second frame EXP2, and the first frame EXP1 and the second frame EXP2 may descend.

[0143] The protrusion PRU may be arranged at an outer side of the base BS. The protrusion PRU may be arranged adjacent to the base BS. The height of the protrusion PRU in the third direction DR3 may be lower than the height of the base BS in the third direction DR3.

[0144] The protrusion PRU may determine a distance that a portion of the display device manufacturing apparatus 100 can vertically descend. For example, the second frame EXP2 may descend toward the base BS and may descend until it contacts the upper surface of the protrusion PRU.

[0145] Below, refer to Figure 7 The manufacturing apparatus 100 of the display device according to the second embodiment is described. The manufacturing apparatus 100 of the display device according to the second embodiment is different from that of the first embodiment in that the support portion ST is inserted into the second frame EXP2. The contents that may overlap with the above contents will not be repeated.

[0146] According to an embodiment, the second frame EXP2 may further include a support hole STH for inserting the support ST. The support hole STH may be a horizontally oriented hole formed in the second frame EXP2.

[0147] The support part ST may be inserted into the second frame EXP2. The support part ST may be inserted in parallel in the length direction of the second frame EXP2. The support part ST may be inserted into the second frame EXP2 in the horizontal direction. The support part ST may be taken out before the second frame EXP2 is lowered.

[0148] As the support portion ST is inserted into the second frame EXP2, the second frame EXP2 can be more firmly supported by the support portion ST. The second frame EXP2 can be supported by the support portion ST and may not move before the second frame EXP2 is lowered. Therefore, when the first frame EXP1 is lowered to be combined with the second frame EXP2, the position alignment portion AP connected to the first frame EXP1 can be more easily inserted into the position alignment portion hole APH.

[0149] Below, refer to Fig.12 and Fig.13 , a structural feature in which the fixing portion FP and the position alignment portion AP are inserted into the fixing portion hole FPH and the position alignment portion hole APH of the second frame EXP2 and the first frame EXP1 and the second frame EXP2 are combined is described.

[0150] The manufacturing apparatus 100 of the display device may operate in a frame combining mode. In the frame combining mode, the first frame EXP1 and the second frame EXP2 may be combined.

[0151] Reference Fig.12, the first frame EXP1 may move in a horizontal direction (e.g., leftward and rightward). According to an embodiment, when the first frame EXP1 may move in a horizontal direction (e.g., leftward and rightward) and the position alignment part AP connected to the first frame EXP1 during the movement is arranged to overlap with the position alignment part hole APH, the first frame EXP1 may descend. When the first frame EXP1 descends, the position alignment part AP may be inserted into the position alignment part hole APH.

[0152] In the case where the position aligning part AP is arranged to overlap the position aligning part hole APH, the fixing part FP may also be arranged to overlap the fixing part hole FPH. At this time, when the first frame EXP1 is lowered, the fixing part FP may be inserted into the fixing part hole FPH.

[0153] The second frame EXP2 may further include an inflation portion EPS and an air injection portion AIJ.

[0154] The expansion part EPS may be arranged adjacent to the fixing part hole FPH in a manner of surrounding the outer side of the fixing part hole FPH. The expansion part EPS may surround the center of the fixing part hole FPH. The expansion part EPS may be connected to the air injection part AIJ. When air is injected from the air injection part AIJ, the expansion part EPS may expand.

[0155] The air injection part AIJ may be connected to the expansion part EPS. The air injection part AIJ may be connected to the expansion part EPS to inject air into the expansion part EPS. The air injection part AIJ may be connected to a hose (eg, an air injection pump) provided from outside the manufacturing apparatus 100 of the display device.

[0156] When the first frame EXP1 is lowered, the sensor part of the display device manufacturing apparatus 100 may sense (eg, detect) that the first frame EXP1 is lowered and the fixing part FP is inserted into the fixing part hole FPH, and determine to inject air into the air injection part AIJ. Fig.13 When air is injected into the air injection part AIJ, the expansion part EPS may expand, and when the expansion part EPS expands, the fixing part FP inserted into the fixing part hole FPH may be compressed. When the fixing part FP is compressed, the first frame EXP1 and the second frame EXP2 may be more firmly fixed.

[0157] The sensor part of the manufacturing device 100 of the display device may determine to discharge air from the air injection part AIJ after sensing whether the stretchable film SF is stretched. After the stretchable film SF is stretched, the sensor part of the manufacturing device 100 of the display device may determine to discharge air from the air injection part AIJ. When air is discharged from the air injection part AIJ, the expansion part EPS may shrink, and when the expansion part EPS shrinks, the fixing part FP inserted into the fixing part hole FPH may be taken out.

[0158] Next, refer to Figures 14 to 18 , the step (S200) of stretching the stretchable film and the step (S300) of transferring the light-emitting element onto the pixel circuit layer are described in more detail.

[0159] Fig.14 is a sequential diagram showing the stretching steps of a stretchable film according to an embodiment. For example, Fig.14 It can be specifically shown Figure 4 A sequence diagram of the step (S200) of stretching a stretchable film. Fig.15 It is a schematic plan view for explaining the positional relationship between the light emitting element and the first frame. Figures 16 to 18 The present invention is a schematic cross-sectional view showing a manufacturing step of a display device.

[0160] Reference Fig.14 , the step (S200) of stretching the stretchable film may include: a step (S210) of combining the first frame with the stretchable film; a step (S220) of combining the second frame with the first frame; and a step (S230) of simultaneously moving the first frame and the second frame.

[0161] The step of combining the first frame with the stretchable film ( S210 ) may include the following steps: assembling the first frame EXP1 ; and adsorbing the stretchable film SF by the second pad PD2 of the first frame EXP1 .

[0162] The step of assembling the first frame EXP1 may include the steps of: disposing the first pad PD1 under the pressurizing portion PRS; disposing the frame portion FRM under the first pad PD1; and disposing the second pad PD2 inside or under the frame portion FRM.

[0163] In the step of arranging the first pad PD1 under the pressurizing part PRS, the first pad PD1 may be coupled to the pressurizing part PRS, and in the step of arranging the frame part FRM under the first pad PD1, the frame part FRM may be coupled to the first pad PD1. In the step of arranging the second pad PD2 inside or under the frame part FRM, the second pad PD2 may be coupled to the frame part FRM.

[0164] The step of absorbing the stretchable film SF by the second pad PD2 of the first frame EXP1 may include the following steps: arranging the stretchable film SF under the second pad PD2. As the stretchable film SF is arranged under the second pad PD2, the second pad PD2 may combine the stretchable film SF to the first frame EXP1, and the upper surface of the stretchable film SF may be fixed.

[0165] Reference Fig.15, the second pad PD2 may absorb the stretchable film SF so that the edge of the stretchable film SF may be fixed. The second pad PD2 may be in contact with the stretchable film SF.

[0166] The alignment part AP and the fixing part FP may not contact the stretchable film SF. For example, the alignment part AP and the fixing part FP may be arranged along the edge of the first frame EXP1, and the stretchable film SF may not overlap the edge of the first frame EXP1 where the alignment part AP and the fixing part FP are combined.

[0167] The shape of a region of the first frame EXP1 that abuts against the edge of the stretchable film SF may correspond to the shape of the stretchable film SF. For example, the stretchable film SF may have a circular shape, and the shape of a region of the first frame EXP1 may have a circular shape corresponding thereto. However, the present disclosure is not necessarily limited to the aforementioned examples.

[0168] At least a portion of the first frame EXP1 may overlap an edge region of the stretchable film SF. As at least a portion of the first frame EXP1 overlaps an edge region of the stretchable film SF, the edge region of the stretchable film SF may be pushed when the first frame EXP1 descends.

[0169] If the edge region of the stretchable film SF is pushed, the stretchable film SF may be stretched, and as the stretchable film SF is stretched, the separation distance between the light emitting elements LE may become larger.

[0170] The step of combining the second frame with the first frame ( S220 ) may include the following steps: the first frame EXP1 moves in such a manner that the position alignment part AP overlaps the position alignment part hole APH; the first frame EXP1 descends; and the fixing part FP is combined with the fixing part hole FPH.

[0171] In the step of combining the second frame with the first frame ( S220 ), the manufacturing apparatus 100 of the display device may operate in a frame combining mode.

[0172] In the step of moving the first frame EXP1 so that the position aligning part AP overlaps the position aligning part hole APH, the first frame EXP1 may move on the plane so that the position aligning part AP reaches a position overlapping with the position aligning part hole APH.

[0173] In the step of lowering the first frame EXP1, when the position alignment part AP reaches a position overlapping with the position alignment part hole APH, the first frame EXP1 may vertically lower. The first frame EXP1 may move in a direction opposite to the third direction DR3. The first frame EXP1 may move in a direction from the first side C1 toward the second side C2.

[0174] At this time, the support part ST may contact the other surface of the second frame EXP2. Accordingly, the support part ST may support the second frame EXP2, and the first frame EXP1 may descend in a state where the second frame EXP2 is stationary.

[0175] Reference Fig.13 and Fig.16 In the step of coupling the fixing part FP to the fixing part hole FPH, when the first frame EXP1 is lowered, the fixing part FP may be inserted into the fixing part hole FPH of the second frame EXP2. When the fixing part FP is inserted into the fixing part hole FPH, the air injection part AIJ may inject air so that the air is injected into the expansion part EPS surrounding the fixing part hole FPH. When the air injection part AIJ injects air, the expansion part EPS may expand to compress the fixing part FP. Depending on whether the expansion part EPS is expanded, the fixing part FP may be coupled to the fixing part hole FPH.

[0176] In the manufacturing device 100 of the display device according to the embodiment of the present disclosure, there is a support part ST supporting one end and the other end of the second frame EXP2, so that the first frame EXP1 can be automatically coupled to the second frame EXP2 while descending. According to the structure of the previous stretching device, the second frame EXP2 cannot be directly arranged on the base BS, and the second frame EXP2 is manually assembled to the lower part of the first frame EXP1.

[0177] The manufacturing device 100 of the display device according to the embodiment of the present disclosure has a support portion ST, so that the second frame EXP2 can be directly arranged on the base BS, and the fixing portion FP can be automatically inserted while the first frame EXP1 is lowered. Therefore, the equipment can be automated, and the process error and labor cost caused by the device user can be reduced. In addition, as the process error is reduced, when the stretchable film SF is stretched, the stretching defect rate of the stretchable film SF can be reduced.

[0178] The first frame EXP1 and the second frame EXP2 may be combined as the fixing part FP is inserted into the fixing part hole FPH. When the first frame EXP1 and the second frame EXP2 are combined, the stretchable film SF combined to the first frame EXP1 may contact the fixing ring ORG. The fixing ring ORG includes one or more materials selected from rubber, silicone, and elastic fiber, and the fixing ring ORG may fix the stretchable film SF, and the stretchable film SF may not slide.

[0179] The manufacturing apparatus 100 of the display device may operate in a frame combining mode and then in a stretchable film stretching mode. In the stretchable film stretching mode, the first frame EXP1 and the second frame EXP2 may move together from the first side C1 to the second side C2.

[0180] The step of simultaneously moving the first frame and the second frame ( S230 ) may include the following steps: the first frame EXP1 and the second frame EXP2 are lowered.

[0181] Reference Fig.17 , in the step of lowering the first frame EXP1 and the second frame EXP2, the first frame EXP1 and the second frame EXP2 may be combined and lowered together.

[0182] When the first frame EXP1 and the second frame EXP2 are lowered, according to an embodiment, the fixing pin may be removed while being inserted into the support portion ST. When the first frame EXP1 and the second frame EXP2 are lowered, the rotating portion ROT may rotate, and as the rotating portion ROT rotates, the support portion ST may not overlap with the second frame EXP2 when viewed from the upper direction. As the support portion ST rotates, the support portion ST may not contact the other surface of the second frame EXP2.

[0183] When the support part ST does not support one end and the other end of the second frame EXP2 due to the rotation of the rotating part ROT, the first frame EXP1 and the second frame EXP2 may be lowered. The second frame EXP2 may be lowered until the lower surface of the second frame EXP2 contacts the upper surface of the protrusion PRU. When the second frame EXP2 is lowered, the stretchable film SF may be stretched and the spacing distance between the light emitting elements LE may be increased.

[0184] Reference Fig.18 , if the spacing distance between the light emitting elements LE increases, in the step (S300) of transferring the light emitting elements onto the pixel circuit layer, the transfer device 200 may move the light emitting elements LE from the stretchable film SF to the pixel circuit layer PCL. The transfer device 200 may be provided in various forms according to the method of moving the light emitting elements LE. For example, the transfer device 200 may be provided as one or more of a device using one or more of a transfer method using a stamp, a transfer method using a laser, a transfer method using an electrostatic force, a transfer method using a magnetic force and an electromagnetic force, and a transfer method using an adhesive.

[0185] According to an embodiment, the transfer device 200 may include a head HD and a stamp STP connected to the head HD. According to an embodiment, the stamp STP may be a flat stamp or a curled stamp. According to an embodiment, the head HD may include one or more of a mechanical chuck, a vacuum chuck, and an electrostatic chuck.

[0186] In this step, the transfer device 200 can be moved in a manner adjacent to the stretchable film SF, and the stamp STP can be bonded to the light emitting element LE. Furthermore, the transfer device 200 can move the stamp STP to be adjacent to the pixel circuit layer PCL, and can transfer the light emitting element LE to the pixel circuit layer PCL. According to an embodiment, a bonding metal layer or the like can be utilized so that the light emitting element LE can be normally transferred to the pixel circuit layer PCL. However, the present disclosure is not necessarily limited to this. According to an embodiment, the operation of the transfer device 200 transferring the light emitting element LE to the pixel circuit layer PCL can be repeated more than twice.

[0187] After the light emitting element LE is transferred onto the pixel circuit layer PCL, the first frame EXP1 and the second frame EXP2 may rise. The first frame EXP1 and the second frame EXP2 may be combined and rise together. After the first frame EXP1 and the second frame EXP2 rise, the rotating part ROT may rotate, and as the rotating part ROT rotates, the support part ST may be arranged to overlap one end and the other end of the second frame EXP2.

[0188] When the first frame EXP1 and the second frame EXP2 rise (or move in the direction from the second side C2 toward the first side C1) and the support portion ST is arranged to overlap one end and the other end of the second frame EXP2, the air can be injected from the air injection portion AIJ (refer to Fig.12 ) to discharge air. When air is discharged from the air injection portion AIJ, the expansion portion EPS may shrink, and when the expansion portion EPS shrinks, the fixing portion FP inserted into the fixing portion hole FPH may be taken out. When the fixing portion FP inserted into the fixing portion hole FPH is taken out, the combination of the first frame EXP1 and the second frame EXP2 may be released.

[0189] The above description is made with reference to the preferred embodiments of the present disclosure, but a skilled technician in the technical field or a person with ordinary knowledge in the technical field can understand that various modifications and changes can be made to the present disclosure without departing from the scope of the idea and technical field of the present disclosure recorded in the claims.

[0190] Therefore, the technical scope of the present disclosure is not limited to the contents described in the detailed description of the specification but should be determined by the claims.

Claims

1. A manufacturing device for a display device, include: a base including a first side and a second side opposite to the first side; a first frame disposed on the first side of the base and capable of being combined with the stretchable membrane; a second frame disposed adjacent to the base, capable of being combined with the first frame, and comprising a first surface and another surface; and a support portion disposed adjacent to the first side of the base and in contact with the other surface of the second frame, Wherein, the manufacturing device can be operated in a frame combination mode and a film stretching mode, When the manufacturing device is operated in the frame combining mode, the first frame and the second frame are combined with each other, When the manufacturing apparatus is operated in the film stretching mode, the first frame and the second frame move together in a direction from the first side toward the second side.

2. The manufacturing device of the display device according to claim 1, in, The second frame further includes a groove and has a ring shape including an opening portion, Wherein, the manufacturing device further comprises: a fixing ring arranged on the groove, The fixing ring includes at least one of rubber, silicone resin and elastic fiber material, and is an O-ring.

3. The manufacturing device of the display device according to claim 1, in, The second frame further includes: a fixing portion hole; an expansion portion adjacent to the fixing portion hole; and an air injection portion connected to the expansion portion. Wherein, the manufacturing device further comprises: a fixing part, combined with the first frame, The fixing portion is inserted into the fixing portion hole and coupled to the fixing portion hole.

4. The manufacturing device of the display device according to claim 3, in, The first frame includes: a frame portion; a pressurizing portion arranged on the frame portion; a first pad arranged between the frame portion and the pressurizing portion; and a second pad combined with the frame portion. Wherein, the first pad and the second pad are vacuum pads.

5. The manufacturing device of the display device according to claim 3, in, The manufacturing device further includes: a rotating part connected to the base; and an auxiliary part arranged on the rotating part. Wherein, the auxiliary portion is in contact with the supporting portion.

6. A manufacturing device for a display device, include: a base including a first side and a second side opposite to the first side; a first frame disposed on the first side of the base and capable of being combined with the stretchable membrane; A fixing portion, combined with the first frame; a second frame, arranged adjacent to the base, capable of being combined with the first frame, and comprising a fixing portion hole; as well as The support part is inserted into the second frame in a horizontal direction, The fixing parts are inserted into the fixing part holes and combined with each other.

7. The manufacturing device of the display device according to claim 6, in, The second frame further includes: an expansion portion adjacent to the fixing portion hole; an air injection portion connected to the expansion portion and injected with air; and a position alignment portion hole. The manufacturing device further comprises: a position alignment portion, which is arranged at a position different from the fixing portion and is combined with the first frame. The position aligning portion is inserted into the position aligning portion hole.

8. The manufacturing device of a display device according to claim 6, in, The second frame further comprises a slot, Wherein, the manufacturing device further comprises: a fixing ring, which is arranged on the groove and is an O-ring.

9. A method for manufacturing a display device, using a display device manufacturing device, in, The manufacturing device comprises: a first frame capable of being combined with the stretchable membrane; a second frame capable of being combined with the first frame and comprising a first surface and another surface; and a supporting portion, in contact with the second frame, Wherein, the manufacturing method comprises the following steps: stretching the stretchable film, The step of stretching the stretchable film comprises the following steps: The first frame is combined with the stretchable membrane; The second frame is combined with the first frame; and The first frame and the second frame move simultaneously, The support portion contacts the other surface of the second frame in the step of combining the second frame with the first frame, The step of simultaneously moving the first frame and the second frame comprises the following steps: The support portion does not contact the other surface of the second frame.

10. The method for manufacturing a display device according to claim 9, in, The second frame includes: a fixing portion hole; an expansion portion surrounding the fixing portion hole; an air injection portion connected to the expansion portion; and a position alignment portion hole, The manufacturing device further comprises: a fixing portion, coupled to the first frame; and a position alignment portion, coupled to the first frame. The step of combining the second frame with the first frame includes the following steps: the fixing part is inserted into the fixing part hole; and when the fixing part is inserted into the fixing part hole, the air injection part injects air into the expansion part, When the position aligning portion is arranged in such a manner as to overlap the position aligning portion hole, the fixing portion is inserted into the fixing portion hole.

11. The method for manufacturing a display device according to claim 9, in, The manufacturing device further includes: a base including a first side and a second side opposite to the first side; a protrusion arranged on an outer side of the base; and a fixing pin, The step of combining the first frame and the second frame comprises the following steps: the fixing pin is inserted into the support part, The step of simultaneously moving the first frame and the second frame comprises the following steps: taking the fixing pin out of the support portion; and moving the first frame and the second frame from the first side to the second side. The first frame and the second frame are movable until the second frame contacts the protrusion.

12. The method for manufacturing a display device according to claim 11, in, The second frame further comprises a slot, Wherein, the manufacturing device further comprises: a fixing ring arranged on the groove, The fixing ring and the stretchable membrane can come into contact when the first frame moves.

13. The method for manufacturing a display device according to claim 10, in, The air injection portion discharges air from the expansion portion when the fixing portion is taken out of the fixing portion hole.

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