Mask assembly, apparatus for manufacturing a display device, and method for manufacturing a display device.

Abstract

To provide a mask assembly, a manufacturing apparatus for display unit, and a manufacturing method for display unit.SOLUTION: A mask assembly includes a mask frame including an opening part and a mask sheet arranged at the mask frame, the mask sheet includes a first trunk part with a first opening part, a second trunk part connected to the first trunk part and having a second opening part arranged, and a third trunk part connected to the first trunk part and having a third opening part arranged, at least one of a shape of a second opening part, a size of the second opening part and a distance between mutually adjacent second opening parts being different from a shape of a corresponding first opening part, a size of the first opening part and a distance between mutually adjacent first opening parts.SELECTED DRAWING: Figure 11

Description

Technical Field

[0001] The present invention relates to an apparatus and a method, and more particularly, to a mask assembly, a manufacturing apparatus for a display device, and a manufacturing method for a display device.

Background Art

[0002] Mobile-based electronic devices are widely used. As mobile electronic devices, in addition to small electronic devices such as mobile phones, tablet PCs have recently been widely used.

[0003] Such mobile electronic devices include a display device in order to provide visual information such as an image or a video to a user to support various functions. Recently, due to the miniaturization of other components for driving the display device, the proportion of the display device in the electronic device is gradually increasing, and a structure that can be bent to have a predetermined angle in a flat state has also been developed.

Summary of the Invention

Problems to be Solved by the Invention

[0004] [[ID=XX]] Generally, when manufacturing a display device, a mask sheet is placed and then used for the deposition of a precise pattern. At this time, when the mask sheet is pulled, a problem occurs in that a part of the mask sheet is deformed. Since a display device having a non-precise pattern can be manufactured due to such deformation, embodiments of the present invention provide a mask assembly, a manufacturing apparatus for a display device, and a manufacturing method for a display device capable of manufacturing a display device having a precise pattern.

Means for Solving the Problems

[0005] It should be noted that there are some tags in the original text that seem to be incomplete or have no clear meaning in the context. I have translated the text as accurately as possible while maintaining the integrity of these tags. If there are specific requirements or corrections regarding these tags, please let me know.One embodiment of the present invention discloses a manufacturing apparatus for a display device, comprising: a chamber; a mask assembly disposed inside the chamber facing a display substrate; and a deposition source disposed facing the mask assembly and supplying a deposition material to the display substrate, wherein the mask assembly comprises a mask frame including an opening and a mask sheet disposed across the mask frame, and the mask sheet comprises a first body portion having a first opening; a second body portion connected to the first body portion and having a second opening different from the first opening; and a third body portion connected to the first body portion and having a third opening.

[0006] In this embodiment, the shape of the second opening and the shape of the third opening may be the same.

[0007] In this embodiment, the mask assembly further includes a support frame that supports the mask sheet, arranged in directions different from the longitudinal direction of the mask sheet, and the third body portion may be positioned to overlap the support frame in a plan view.

[0008] In this embodiment, the second and third body portions may be arranged in opposite directions relative to an arbitrary straight line passing through the center of the mask sheet, while being parallel to the longitudinal direction of the mask sheet.

[0009] In this embodiment, the distance from the frame of the second opening located on the outermost edge of the second fuselage to the frame of the mask sheet and the distance from the frame of the third opening located on the outermost edge of the third fuselage to the frame of the mask sheet may be the same.

[0010] In this embodiment, the second fuselage section and the third fuselage section each include a plurality of units, the plurality of second fuselage sections may be arranged in a straight line with respect to each other, and the plurality of third fuselage sections may also be arranged in a straight line with respect to each other.

[0011] In this embodiment, the second and third fuselage sections may be arranged in a serpentine shape.

[0012] In this embodiment, the sum of the areas of the second openings of the plurality of second fuselage sections and the sum of the areas of the third openings of the plurality of third fuselage sections may be the same as each other.

[0013] In this embodiment, the parts of the plurality of third fuselage sections and the other parts of the plurality of third fuselage sections may be arranged symmetrically with respect to an arbitrary straight line perpendicular to the longitudinal direction of the mask sheet, passing through the center of the mask sheet.

[0014] In this embodiment, the mask assembly further includes support frames that support the mask sheet, arranged in directions different from the longitudinal direction of the mask sheet, and a plurality of the support frames and the second body portions are provided, and among the plurality of support frames, adjacent support frames and the frame of the first body portion, or one of the plurality of support frames and the mask frame and the frame of the first body portion define a passage region through which the vapor-deposited material passes, and each of the second body portions may be positioned at the edge of the passage region.

[0015] Another embodiment of the present invention discloses a method for manufacturing a display device, comprising the steps of: arranging a display substrate and a mask assembly inside a chamber; and depositing a deposition material onto the display substrate through the mask assembly, wherein the mask assembly comprises a mask frame including an opening and a mask sheet positioned across the mask frame, and the mask sheet comprises a first body portion having a first opening, a second body portion connected to the first body portion and having a second opening different from the first opening, and a third body portion connected to the first body portion and having a third opening.

[0016] In this embodiment, the shape of the second opening and the shape of the third opening may be the same.

[0017] In this embodiment, the mask assembly further includes a support frame that supports the mask sheet, arranged in directions different from the longitudinal direction of the mask sheet, and the third body portion may be positioned to overlap the support frame in a plan view.

[0018] In this embodiment, the second and third body portions may be arranged in opposite directions relative to an arbitrary straight line passing through the center of the mask sheet, while being parallel to the longitudinal direction of the mask sheet.

[0019] In this embodiment, the distance from the frame of the second opening located on the outermost edge of the second fuselage to the frame of the mask sheet and the distance from the frame of the third opening located on the outermost edge of the third fuselage to the frame of the mask sheet may be the same.

[0020] In this embodiment, the second fuselage section and the third fuselage section each include a plurality of units, the plurality of second fuselage sections may be arranged in a straight line with respect to each other, and the plurality of third fuselage sections may also be arranged in a straight line with respect to each other.

[0021] In this embodiment, the second and third fuselage sections may be arranged in a serpentine shape.

[0022] In this embodiment, the sum of the areas of the second openings of the plurality of second fuselage sections and the sum of the areas of the third openings of the plurality of third fuselage sections may be the same as each other.

[0023] In this embodiment, the parts of the plurality of third fuselage sections and the other parts of the plurality of third fuselage sections may be arranged symmetrically with respect to an arbitrary straight line perpendicular to the longitudinal direction of the mask sheet, passing through the center of the mask sheet.

[0024] In this embodiment, the mask assembly further includes a support frame that is arranged in a direction different from the longitudinal direction of the mask sheet and supports the mask sheet. A plurality of the support frames and the second body portions are provided. Among the plurality of support frames, the support frames adjacent to each other and the frame of the first body portion, or one of the plurality of support frames, the mask frame, and the frame of the first body portion define a passage region through which the vapor deposition material passes. Each second body portion may be arranged at an edge portion of the passage region.

[0025] Still another embodiment of the present invention discloses a mask assembly including a mask frame including an opening and a mask sheet arranged across the mask frame. The mask sheet includes a first body portion provided with a first opening, a second body portion connected to the first body portion and provided with a second opening different from the first opening, and a third body portion connected to the first body portion and provided with a third opening.

[0026] In this embodiment, the shape of the second opening and the shape of the third opening may be the same.

[0027] In this embodiment, the mask assembly further includes a support frame that is arranged in a direction different from the longitudinal direction of the mask sheet and supports the mask sheet. The third body portion may be arranged to overlap the support frame in a plan view.

[0028] In this embodiment, the second body portion and the third body portion may be arranged in opposite directions with respect to an arbitrary straight line passing through the center of the mask sheet while being parallel to the longitudinal direction of the mask sheet.

[0029] In this embodiment, the distance from the frame of the second opening arranged at the outermost contour of the second body portion to the frame of the mask sheet and the distance from the frame of the third opening arranged at the outermost contour of the third body portion to the frame of the mask sheet may be the same as each other.

[0030] In this embodiment, the second fuselage section and the third fuselage section each include a plurality of units, the plurality of second fuselage sections may be arranged in a straight line with respect to each other, and the plurality of third fuselage sections may also be arranged in a straight line with respect to each other.

[0031] In this embodiment, the second and third fuselage sections may be arranged in a serpentine shape.

[0032] In this embodiment, the sum of the areas of the second openings of the plurality of second fuselage sections and the sum of the areas of the third openings of the plurality of third fuselage sections may be the same as each other.

[0033] In this embodiment, the parts of the plurality of third fuselage sections and the other parts of the plurality of third fuselage sections may be arranged symmetrically with respect to an arbitrary straight line perpendicular to the longitudinal direction of the mask sheet, passing through the center of the mask sheet.

[0034] In this embodiment, the mask assembly further includes support frames for supporting the mask sheet, arranged in directions different from the longitudinal direction of the mask sheet, and a plurality of the support frames and the second body portions are provided, wherein adjacent support frames and the frames of the first body portion, or one of the plurality of support frames and the mask frame and the frames of the first body portion, define a passage region through which the vapor-deposited material passes, and each of the second body portions may be positioned at the edge of the passage region.

[0035] Other aspects, features, and advantages not mentioned above will become clear from the following drawings, claims, and detailed description of the invention.

[0036] Such general and specific aspects may be implemented using a system, method, computer program, or a combination of a system, method, or computer program. [Effects of the Invention]

[0037] The apparatus for manufacturing a display device and the method for manufacturing a display device according to embodiments of the present invention can manufacture a display device having a precise pattern.

[0038] The apparatus for manufacturing a display device and the method for manufacturing a display device according to embodiments of the present invention can minimize deformation of the mask sheet.

[0039] The apparatus for manufacturing a display device and the method for manufacturing a display device according to embodiments of the present invention can manufacture a display device having display areas with different transmittances. [Brief explanation of the drawing]

[0040] [Figure 1] This is a perspective view showing a display device according to one embodiment of the present invention. [Figure 2] This is a cross-sectional view along the line A-A' in Figure 1. [Figure 3] This is a schematic plan view showing a display device according to one embodiment of the present invention. [Figure 4A] This is an equivalent circuit diagram of pixels arranged in the display area and / or sensor area of ​​a display device according to one embodiment of the present invention. [Figure 4B] This is an equivalent circuit diagram of pixels arranged in the display area and / or sensor area of ​​a display device according to another embodiment of the present invention. [Figure 5] This is a schematic plan view showing the arrangement of subpixels and transparent areas located in the first and second display areas. [Figure 6] This is a schematic cross-sectional view along lines I-I' and II-II' in Figure 5. [Figure 7] This is a schematic cross-sectional view of a display device according to another embodiment of the present invention. [Figure 8] This is a schematic cross-sectional view of a display device according to yet another embodiment of the present invention. [Figure 9] This is a cross-sectional view showing a manufacturing apparatus for a display device according to one embodiment of the present invention. [Figure 10]Figure 9 is a perspective view showing the mask assembly illustrated in the diagram. [Figure 11] Figure 10 is a plan view showing the mask sheet illustrated. [Figure 12A] This is a plan view showing a portion of the first mask sheet in a manufacturing apparatus for a display device according to one embodiment of the present invention. [Figure 12B] This is a plan view showing a portion of the first mask sheet in a manufacturing apparatus for a display device according to one embodiment of the present invention. [Figure 13A] This is a plan view showing a part of a second mask sheet in a manufacturing apparatus for a display device, according to one embodiment of the present invention. [Figure 13B] This is a plan view showing a part of a second mask sheet in a manufacturing apparatus for a display device, according to one embodiment of the present invention. [Figure 14A] This is a plan view showing a portion of the third mask sheet in a manufacturing apparatus for a display device according to one embodiment of the present invention. [Figure 14B] This is a plan view showing a portion of the third mask sheet in a manufacturing apparatus for a display device according to one embodiment of the present invention. [Figure 15] This is a plan view showing a portion of the first mask sheet in a manufacturing apparatus for a display device according to another embodiment of the present invention. [Figure 16] This is a plan view showing a first mask sheet in a manufacturing apparatus for a display device according to yet another embodiment of the present invention. [Figure 17] This is a plan view showing a part of a mask sheet in a manufacturing apparatus for a display device according to yet another embodiment of the present invention. [Figure 18] This is a plan view showing a part of a mask sheet in a manufacturing apparatus for a display device according to yet another embodiment of the present invention. [Figure 19] This is a schematic plan view showing the arrangement of subpixels and transparent parts arranged in the second display area of ​​a display device according to another embodiment of the present invention. [Figure 20] This is a plan view showing a portion of a first mask sheet in a manufacturing apparatus for a display device according to yet another embodiment of the present invention. [Figure 21]This is a schematic plan view showing the arrangement of subpixels and transparent parts arranged in the second display area of ​​a display device according to yet another embodiment of the present invention. [Figure 22] This is a plan view showing a portion of a first mask sheet in a manufacturing apparatus for a display device according to yet another embodiment of the present invention. [Figure 23] This is a schematic plan view showing the arrangement of subpixels and transparent parts arranged in the second display area of ​​a display device according to yet another embodiment of the present invention. [Figure 24] This is a plan view showing a portion of a first mask sheet in a manufacturing apparatus for a display device according to yet another embodiment of the present invention. [Modes for carrying out the invention]

[0041] The present invention can be modified in various ways and has many embodiments. Specific embodiments are illustrated in the drawings and described in detail in the detailed description. The effects and features of the present invention, and the methods for achieving them, will become clear when viewed in detail with the drawings and the embodiments described later. However, the present invention is not limited to the embodiments described later and can also be embodied in various forms.

[0042] Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings. When describing with reference to the drawings, identical or corresponding components will be denoted by the same reference numerals, and redundant explanations thereof will be omitted.

[0043] In the following embodiments, terms such as "first," "second," etc., are used not in a restrictive sense, but to distinguish one component from another.

[0044] In the following embodiments, a singular expression includes plural expressions unless the context clearly indicates otherwise.

[0045] In the following embodiments, terms such as “includes” or “has” mean that the features or components described in the specification are present, and do not preclude the possibility that one or more other features or components may be added.

[0046] In the following embodiments, when a part such as a membrane, region, or component is located on or above another part, this includes not only cases where it is directly above the other part, but also cases where another membrane, region, component, etc. is interposed between them.

[0047] For illustrative purposes, the dimensions of components in the drawings may be exaggerated or reduced. For example, the dimensions and thicknesses of each component shown in the drawings are arbitrary and provided for illustrative purposes only, and the present invention is not necessarily limited to those shown.

[0048] In the following embodiments, the x, y, and z axes are not limited to the three axes on a Cartesian coordinate system, but may be interpreted in a broader sense that includes them. For example, the x, y, and z axes may be orthogonal to each other, or they may refer to different directions that are not orthogonal to each other.

[0049] Where a particular embodiment can be embodied in a different way, a specific sequence of steps may be performed in a different order than that described. For example, two steps described consecutively may be performed substantially simultaneously, or they may be performed in the reverse order of the described steps.

[0050] Figure 1 is a perspective view showing a display device according to an embodiment of the present invention.

[0051] Referring to Figure 1, the display device 1 includes a first display area DA1 that embodies an image and a non-display area NDA that does not embody an image. The display device 1 can provide a main image using light emitted from a plurality of main sub-pixels (Pm) arranged in the first display area DA1.

[0052] The display device 1 includes a second display area DA2. The second display area DA2 may be an area in which components such as sensors using infrared rays, visible light, or sound are arranged below it, as will be described later with reference to Figure 2. The second display area DA2 may include a transmissive section TA through which light and / or sound that is output from or traveling from the outside towards the component can pass. In one embodiment of the present invention, when light is transmitted through the second display area DA2, the light transmittance may be about 30% or more, more preferably 50% or more, 75% or more, 80% or more, 85% or more, or 90% or more.

[0053] In this embodiment, the second display area DA2 may include an auxiliary light-emitting area Pg in which a plurality of auxiliary sub-pixels Pa are arranged, and a predetermined image can be provided using the light emitted from the plurality of auxiliary sub-pixels Pa. The image provided from the second display area DA2 has a lower resolution than the image provided from the first display area DA1 as an auxiliary image. That is, the second display area DA2 has a transmissive area TA through which light and / or sound can pass, and the number of auxiliary sub-pixels Pa arranged per unit area is less than the number of main sub-pixels Pm arranged per unit area in the first display area DA1.

[0054] The second display area DA2 is positioned on one side of the first display area DA1. In one embodiment, in Figure 1, the second display area DA2 is positioned to the right of the first display area DA1, and is positioned between the non-display area NDA and the first display area DA1. However, the present invention is not limited thereto. The second display area DA2 can be positioned in various ways, such as being surrounded by the first display area DA1. For example, Figure 1 shows the second display area DA2 positioned to the left of the rectangular first display area DA1, but the present invention is not limited thereto. The shape of the first display area DA1 may be circular, elliptical, or a polygon such as a triangle or pentagon. The second display area DA2 may be positioned on the inside right side of the first display area DA1. That is, the second display area DA2 may be positioned at a certain distance from the center of the first display area DA1.

[0055] In the following description, an organic light-emitting display device is given as an example of a display device 1 according to one embodiment of the present invention, but the display device of the present invention is not limited thereto. As other embodiments, various types of display devices may be used, such as inorganic EL displays and quantum dot light-emitting displays.

[0056] Figure 2 is a simplified cross-sectional view showing a display device according to an embodiment of the present invention, and can correspond to a cross-section along the line A-A' in Figure 1.

[0057] Referring to Figure 2, the display device 1 may include a display panel 10 containing display elements and a component 20 corresponding to the second display area DA2.

[0058] The display panel 10 may include a substrate 100, a display element layer 200 disposed on the substrate 100, and a thin film sealing layer 300 as a sealing member for sealing the display element layer 200. The display panel 10 may further include a lower protective film 175 disposed below the substrate 100.

[0059] The substrate 100 may contain glass or a polymer resin. The polymer resin may include polyethersulfone, polyacrylate, polyetherimide, polyethylene naphthalate (PEN), polyethylene terephthalate, polyphenylene sulfide, polyarylate, polyimide, polycarbonate, or cellulose acetate propionate. The substrate 100 containing the polymer resin has flexible, rollable, or bendable properties. The substrate 100 may have a multilayer structure including a layer containing the polymer resin and an inorganic layer (not shown).

[0060] The display element layer 200 may include a circuit layer containing thin-film transistors TFTs and TFT', an organic light-emitting diode (OLED) as a display element, and insulating layers IL and IL' between them.

[0061] In the first display area DA1, a main sub-pixel Pm including a first thin-film transistor TFT and an organic light-emitting diode (OLED) connected thereto may be arranged, and in the second display area DA2, an auxiliary sub-pixel Pa including a second thin-film transistor TFT' and an organic light-emitting diode (OLED) connected thereto may be arranged.

[0062] Furthermore, a transmissive area TA, on which no display elements are placed, may be placed in the second display area DA2. The transmissive area TA is understood to be an area through which light / signals emitted from component 20 or light / signals incident on component 20 are transmitted. In this case, the transmissive areas TA may be arranged alternately with the auxiliary light-emitting areas Pg. That is, a transmissive area TA may be placed between adjacent auxiliary light-emitting areas Pg, and an auxiliary light-emitting area Pg may be placed between adjacent transmissive areas TA.

[0063] Component 20 can be located in the second display area DA2. Component 20 may be an electronic element that uses light or sound. For example, component 20 may be a sensor that receives and uses light, such as an infrared sensor; a sensor that outputs and senses light or sound to measure distance or recognize fingerprints; a small lamp that emits light; a speaker that emits sound; a camera, etc. In the case of an electronic element that uses light, it goes without saying that light in various wavelength bands such as visible light, infrared light, and ultraviolet light can be used. Multiple components 20 may be provided in the second display area DA2. For example, a light-emitting element and a light-receiving element may be provided together as component 20 in one second display area DA2. Alternatively, a light-emitting unit and a light-receiving unit may be provided simultaneously in one component 20.

[0064] A lower electrode layer BSM may be placed in the second display region DA2. The lower electrode layer BSM may be placed corresponding to the bottom of the second thin-film transistor TFT'. Such a lower electrode layer BSM can block ambient light from reaching the auxiliary sub-pixel Pa, which contains the second thin-film transistor TFT', etc. For example, the lower electrode layer BSM can block light emitted from component 20 from reaching the auxiliary sub-pixel Pa.

[0065] In some embodiments, a constant voltage or signal is applied to the lower electrode layer BSM to prevent damage to the pixel circuit due to electrostatic discharge.

[0066] The thin film encapsulation layer 300 may include at least one inorganic encapsulation layer and at least one organic encapsulation layer. In this regard, Figure 2 shows the first and second inorganic encapsulation layers 310, 330 and the organic encapsulation layer 320 between them.

[0067] The first and second inorganic encapsulation layers 310 and 330 may contain one or more inorganic insulators from among aluminum oxide, titanium oxide, tantalum oxide, hafnium oxide, zinc oxide, silicon oxide, silicon nitride, and silicon oxynitride. The organic encapsulation layer 320 may contain polymer-based materials. Polymer-based materials may include acrylic resins, epoxy resins, polyimides, and polyethylene.

[0068] The lower protective film 175 is attached to the bottom of the substrate 100 and can support and protect the substrate 100. The lower protective film 175 may have an opening 175OP corresponding to the second display area DA2. By providing the opening 175OP in the lower protective film 175, the light transmittance of the second display area DA2 can be improved. The lower protective film 175 may contain polyethylene terephthalate (PET) or polyimide (PI).

[0069] The area of ​​the second display area DA2 may be larger than the area where the component 20 is placed. As a result, the area of ​​the opening 175OP provided in the lower protective film 175 will not match the area of ​​the second display area DA2. For example, the area of ​​the opening 175OP may be smaller than the area of ​​the second display area DA2.

[0070] Furthermore, multiple components 20 may be arranged in the second display area DA2. These multiple components 20 may have different functions from one another. For example, one of the multiple components 20 may be a camera, and another may be an infrared sensor.

[0071] Although not shown in the figures, the display panel 10 may further include components such as an input sensing member for sensing touch input, an anti-reflective member including a polarizer and retarder or a color filter and black matrix, and a transparent window.

[0072] On the other hand, although this embodiment shows a thin film sealing layer 300 used as a sealing member to seal the display element layer 200, the present invention is not limited thereto. For example, a sealing substrate bonded to the substrate 100 by a sealant or frit may be used as the member to seal the display element layer 200.

[0073] Figure 3 is a schematic plan view showing a display panel according to one embodiment of the present invention.

[0074] Referring to Figure 3, the display panel 10 includes a plurality of main sub-pixels Pm arranged in the first display area DA1. Each main sub-pixel Pm may include a display element such as an organic light-emitting diode. Each main sub-pixel Pm can emit light of one hue, for example, red, green, blue, or white, through the organic light-emitting diode. The first display area DA1 may be covered with a sealing member as described with reference to Figure 2 to protect it from the outside air or moisture.

[0075] The second display area DA2 is located on one side of the first display area DA1, and the second display area DA2 includes an auxiliary light-emitting area Pg in which a plurality of auxiliary sub-pixels Pa are arranged. Each auxiliary sub-pixel Pa may include a display element such as an organic light-emitting diode. Each auxiliary sub-pixel Pa can emit light of any one hue from, for example, red, green, blue, or white light through the organic light-emitting diode. In such a case, the auxiliary light-emitting area Pg may include at least two or more auxiliary sub-pixels Pa that emit the same color to each other. On the other hand, the second display area DA2 may include a transmissive section TA that is placed between the auxiliary light-emitting areas Pg. At least one component 20 may be located corresponding to the lower part of the second display area DA2 of the display panel 10.

[0076] In one embodiment, one main sub-pixel Pm and one auxiliary sub-pixel Pa may include the same pixel circuit. However, the present invention is not limited thereto. It goes without saying that the pixel circuit included in the main sub-pixel Pm and the pixel circuit included in the auxiliary sub-pixel Pa are different from each other. On the other hand, the second display area DA2 includes a transmissive portion TA, and the resolution of the second display area DA2 is lower than that of the first display area DA1.

[0077] Each sub-pixel Pm, Pa is electrically connected to an outer circuit located in the non-display area NDA. The non-display area NDA may also contain a first scan drive circuit 110, a second scan drive circuit 120, a terminal 140, a data drive circuit 150, a first power supply wiring 160, and a second power supply wiring 170.

[0078] The first scan drive circuit 110 can provide scan signals to each sub-pixel Pm, Pa through the scan line SL. The first scan drive circuit 110 can provide light emission control signals to each sub-pixel through the light emission control line EL. The second scan drive circuit 120 may be arranged alongside the first scan drive circuit 110, with the first display area DA1 in between. Some of the sub-pixels Pm, Pa arranged in the first display area DA1 may be electrically connected to the first scan drive circuit 110, and the rest may be connected to the second scan drive circuit 120. In other embodiments, the second scan drive circuit 120 may be omitted.

[0079] Terminal 140 may be located on one side of the substrate 100. Terminal 140 is not covered by an insulating layer and is exposed and electrically connected to the printed circuit board (PCB). Terminal PCB-P of the printed circuit board (PCB) is electrically connected to terminal 140 of the display panel 10. The printed circuit board (PCB) transmits signals or power from a control unit (not shown) to the display panel 10. Control signals generated by the control unit are transmitted through the printed circuit board (PCB) to the first and second scan drive circuits 110 and 120, respectively. The control unit can provide first and second power supplies ELVDD and ELVSS (see Figures 4A and 4B described later) to the first and second power supply wirings 160 and 170, respectively, through first and second connection wirings 161 and 171. A first power supply voltage ELVDD is supplied to each sub-pixel Pm, Pa through a drive voltage line PL connected to a first power supply wiring 160, and a second power supply voltage ELVSS may be supplied to the counter electrodes of each sub-pixel Pm, Pa connected to a second power supply wiring 170.

[0080] The data drive circuit 150 is electrically connected to the data line DL. The data signal from the data drive circuit 150 may be provided to each sub-pixel Pm, Pa through a connection wire 151 connected to terminal 140, and the data line DL connected to the connection wire 151. Figure 3 shows the data drive circuit 150 arranged on a printed circuit board PCB, but in other embodiments, the data drive circuit 150 may be arranged on a substrate 100. For example, the data drive circuit 150 may be arranged between terminal 140 and the first power supply wire 160.

[0081] The first power supply line 160 may include a first sub-wiring 162 and a second sub-wiring 163 that extend side by side along the X direction, flanking the first display area DA1. The second power supply line 170 may be a loop with one end open and partially surround the first display area DA1.

[0082] Figure 4A is an equivalent circuit diagram of pixels arranged in the display area and / or sensor area of ​​a display device according to one embodiment of the present invention.

[0083] Referring to Figure 4A, each sub-pixel Pm, Pa includes a pixel circuit PC connected to the scan line SL and data line DL, and an organic light-emitting diode OLED connected to the pixel circuit PC.

[0084] The pixel circuit PC includes a drive thin-film transistor T1, a switching thin-film transistor T2, and a storage capacitor Cst. The switching thin-film transistor T2 is connected to the scan line SL and the data line DL, and transmits the data signal Dm input via the data line DL to the drive thin-film transistor T1 via the scan signal Sn input via the scan line SL.

[0085] The storage capacitor Cst is connected to the switching thin-film transistor T2 and the drive voltage line PL, and stores a voltage corresponding to the difference between the voltage transmitted from the switching thin-film transistor T2 and the first power supply voltage (ELVDD or drive voltage) supplied to the drive voltage line PL.

[0086] The drive thin-film transistor T1 is connected to the drive voltage line PL and the storage capacitor Cst, and can control the drive current flowing from the drive voltage line PL to the organic light-emitting diode (OLED) in accordance with the voltage value stored in the storage capacitor Cst. The organic light-emitting diode (OLED) can emit light with a predetermined brightness according to the drive current.

[0087] Referring to Figure 4B, the pixel circuit PC may include a driving thin-film transistor T1, a switching thin-film transistor T2, a compensation thin-film transistor T3, a first initialization thin-film transistor T4, an operation control thin-film transistor T5, a light emission control thin-film transistor T6, and a second initialization thin-film transistor T7.

[0088] Figure 4B illustrates a case where each pixel circuit PC is provided with signal lines SL, SL-1, SL+1, EL, DL, initialization voltage line VL, and drive voltage line PL, but the present invention is not limited thereto. In another embodiment, at least one of the signal lines SL, SL-1, SL+1, EL, DL, and / or the initialization voltage line VL may be shared by adjacent pixel circuits.

[0089] The drain electrode of the driving thin-film transistor T1 is electrically connected to the light-emitting element ED via the light-emitting control thin-film transistor T6. The driving thin-film transistor T1 receives a data signal Dm through the switching operation of the switching thin-film transistor T2 and supplies a driving current to the light-emitting element ED.

[0090] The gate electrode of the switching thin-film transistor T2 is connected to the scan line SL, and its source electrode is connected to the data line DL. The drain electrode of the switching thin-film transistor T2 is connected to the source electrode of the driving thin-film transistor T1, and may also be connected to the drive voltage line PL via the operation control thin-film transistor T5.

[0091] The switching thin-film transistor T2 is turned on by the scan signal Sn transmitted via the scan line SL and performs a switching operation to transmit the data signal Dm transmitted via the data line DL to the source electrode of the driving thin-film transistor T1.

[0092] The gate electrode of the compensating thin-film transistor T3 may be connected to the scan line SL. The source electrode of the compensating thin-film transistor T3 is connected to the drain electrode of the driving thin-film transistor T1, but may also be connected to the pixel electrode of the light-emitting element ED via the light-emitting control thin-film transistor T6. The drain electrode of the compensating thin-film transistor T3 may also be connected to one of the electrodes of the storage capacitor Cst, the source electrode of the first initialization thin-film transistor T4, and the gate electrode of the driving thin-film transistor T1. The compensating thin-film transistor T3 is turned on by the scan signal Sn transmitted via the scan line SL, and connects the gate electrode and drain electrode of the driving thin-film transistor T1 to each other, causing the driving thin-film transistor T1 to undergo a diode connection.

[0093] The gate electrode of the first initializing thin-film transistor T4 is connected to the previous scan line SL-1. The drain electrode of the first initializing thin-film transistor T4 is connected to the initialization voltage line VL. The source electrode of the first initializing thin-film transistor T4 is connected to one of the electrodes of the storage capacitor Cst, the drain electrode of the compensation thin-film transistor T3, and the gate electrode of the drive thin-film transistor T1. The first initializing thin-film transistor T4 can be turned on by the previous scan signal Sn-1 transmitted via the previous scan line SL-1 and perform an initialization operation to initialize the gate electrode voltage of the drive thin-film transistor T1 by transmitting the initialization voltage Vint to the gate electrode of the drive thin-film transistor T1.

[0094] The gate electrode of the motion control thin-film transistor T5 is connected to the light emission control line EL. The source electrode of the motion control thin-film transistor T5 is connected to the drive voltage line PL. The drain electrode of the motion control thin-film transistor T5 is connected to the source electrode of the drive thin-film transistor T1 and the drain electrode of the switching thin-film transistor T2.

[0095] The gate electrode of the light emission control thin-film transistor T6 is connected to the light emission control line EL. The source electrode of the light emission control thin-film transistor T6 may be connected to the drain electrode of the drive thin-film transistor T1 and the source electrode of the compensation thin-film transistor T3. The drain electrode of the light emission control thin-film transistor T6 may be electrically connected to the pixel electrode of the light-emitting element ED. The operation control thin-film transistor T5 and the light emission control thin-film transistor T6 are simultaneously turned on by the light emission control signal En transmitted via the light emission control line EL, the drive voltage ELVDD is transmitted to the light-emitting element ED, and a drive current flows to the light-emitting element ED.

[0096] The gate electrode of the second initializing thin-film transistor T7 is subsequently connected to the scan line SL+1. The source electrode of the second initializing thin-film transistor T7 is connected to the pixel electrode of the light-emitting element ED. The drain electrode of the second initializing thin-film transistor T7 is connected to the initialization voltage line VL. The second initializing thin-film transistor T7 can be turned on by the subsequent scan signal Sn+1 transmitted via the scan line SL+1, thereby initializing the pixel electrode of the light-emitting element ED.

[0097] Figure 4B illustrates the case where the first initializing thin-film transistor T4 and the second initializing thin-film transistor T7 are connected to the previous scan line SL-1 and the subsequent scan line SL+1, respectively, but the present invention is not limited thereto. In yet another embodiment, both the first initializing thin-film transistor T4 and the second initializing thin-film transistor T7 can be connected to the previous scan line SLn-1 and driven by the previous scan signal Sn-1.

[0098] The other electrode of the storage capacitor Cst is connected to the drive voltage line PL. Any one electrode of the storage capacitor Cst may also be connected to the gate electrode of the drive thin-film transistor T1, the drain electrode of the compensation thin-film transistor T3, and the source electrode of the first initialization thin-film transistor T4.

[0099] The counter electrode (e.g., cathode) of the light-emitting element ED provides a common voltage ELVSS. The light-emitting element ED emits light when a drive current is transmitted from the drive thin-film transistor T1.

[0100] The pixel circuit PC is not limited to the number and circuit design of thin-film transistors and storage capacitors as described with reference to Figures 4A and 4B; their number and circuit design can be varied in many ways.

[0101] The pixel circuits PC that drive the main sub-pixel Pm and the auxiliary sub-pixel Pa may be the same or different. For example, the pixel circuits PC that drive the main sub-pixel Pm and the auxiliary sub-pixel Pa may be the pixel circuit PC shown in Figure 4B. In another embodiment, the pixel circuit PC that drives the main sub-pixel Pm may be the pixel circuit PC shown in Figure 4B, and the pixel circuit PC that drives the auxiliary sub-pixel Pa may be the pixel circuit PC shown in Figure 4A.

[0102] Figure 5 is a schematic plan view showing the arrangement of subpixels and transparent areas located in the first and second display areas.

[0103] Referring to Figure 5, in the first display area DA1 of the display device according to one embodiment of the present invention, main sub-pixels Pm1, Pm2, and Pm3 are arranged, and in the second display area DA2, an auxiliary light-emitting area Pg including auxiliary sub-pixels Pa1, Pa2, and Pa3 and a transmissive area TA are arranged.

[0104] In this embodiment, the main sub-pixels Pm1, Pm2, and Pm3 arranged in the first display area DA1 and the auxiliary sub-pixels Pa1, Pa2, and Pa3 arranged in the second display area DA2 may have different pixel array structures. In this specification, the pixel array structure will be described with reference to the light-emitting region of each sub-pixel. In this case, the light-emitting region of the sub-pixel is defined by the aperture of the pixel defining film, which will be described later.

[0105] As shown in Figure 5, the main subpixels Pm1, Pm2, and Pm3 arranged in the first display area DA1 are also arranged in a pentile structure. The first main subpixel Pm1, the second main subpixel Pm2, and the third main subpixel Pm3 can each embody a different color. For example, the first main subpixel Pm1, the second main subpixel Pm2, and the third main subpixel Pm3 can each embody red, green, and blue, respectively.

[0106] In the first row 1N, multiple first main sub-pixels Pm1 and multiple third main sub-pixels Pm3 are arranged alternately; in the adjacent second row 2N, multiple second main sub-pixels Pm2 are arranged at predetermined intervals; in the adjacent third row 3N, third main sub-pixels Pm3 and first main sub-pixels Pm1 are arranged alternately; and in the adjacent fourth row 4N, multiple second main sub-pixels Pm2 are arranged at predetermined intervals. This arrangement of pixels is repeated up to the Nth row. In this case, the third main sub-pixels Pm3 and the first main sub-pixels Pm1 may be larger than the second main sub-pixels Pm2.

[0107] Multiple first main subpixels Pm1 and third main subpixels Pm3 arranged in the first row 1N and multiple second main subpixels Pm2 arranged in the second row 2N are arranged alternately. Therefore, in the first column 1M, first main subpixels Pm1 and third main subpixels Pm3 are arranged alternately, in the adjacent second column 2M, multiple second main subpixels Pm2 are arranged at predetermined intervals, in the adjacent third column 3M, third main subpixels Pm3 and first main subpixels Pm1 are arranged alternately, and in the adjacent fourth column 4M, multiple second main subpixels Pm2 are arranged at predetermined intervals, and such pixel arrangements are repeated up to the Mth column.

[0108] If we express such a pixel arrangement structure differently, we can say that of a virtual rectangle VS with the center point of the second main sub-pixel Pm2 as the center point of the rectangle, the first main sub-pixel Pm1 is placed at the first and third vertices which are opposite each other, and the third main sub-pixel Pm3 is placed at the remaining vertices, the second and fourth vertices. In this case, the virtual rectangle VS may be transformed into various shapes such as a rectangle, rhombus, or square.

[0109] This type of pixel arrangement is called a Pentile Matrix structure, and by applying rendering-driven processing that shares adjacent pixels to represent hue, high resolution can be achieved with a small number of pixels.

[0110] On the other hand, the auxiliary sub-pixels Pa1, Pa2, and Pa3 arranged in the second display area DA2 may have different shapes from the main sub-pixels Pm1, Pm2, and Pm3, and may be arranged with different structures from each other. The first auxiliary sub-pixel Pa1, the second auxiliary sub-pixel Pa2, and the third auxiliary sub-pixel Pa3 can each embody different colors. For example, the first auxiliary sub-pixel Pa1, the second auxiliary sub-pixel Pa2, and the third auxiliary sub-pixel Pa3 can each embody red, green, and blue, respectively.

[0111] In the first column 1I, the first auxiliary subpixel Pa1 and the third auxiliary subpixel Pa3 may be arranged sequentially in a row, and in the adjacent second column 2I, the third auxiliary subpixel Pa3 and the first auxiliary subpixel Pa1 may be arranged sequentially in a row. In such a case, the first auxiliary subpixel Pa1 and the third auxiliary subpixel Pa3 may be arranged oppositely in the first column 1I and the second column 2I.

[0112] On the other hand, multiple second auxiliary subpixels Pa2 may be arranged between adjacent first auxiliary subpixels Pa1 and third auxiliary subpixels Pa3. Multiple second auxiliary subpixels Pa2 may be arranged spaced apart from each other. In particular, multiple second auxiliary subpixels Pa2 may be arranged in a line in the Y direction and spaced apart from each other.

[0113] The first auxiliary subpixel Pa1, the second auxiliary subpixel Pa2, and the third auxiliary subpixel Pa3 can form one auxiliary light-emitting region Pg. In Figure 5, it is shown that one auxiliary light-emitting region Pg contains eight auxiliary subpixels Pa1, Pa2, and Pa3, but the embodiments of the present invention are not limited thereto, and the number and arrangement of auxiliary subpixels Pa1, Pa2, and Pa3 included in one auxiliary light-emitting region Pg can be varied in various ways.

[0114] The transmissive area TA is a region where no display elements are placed and has high light transmittance, and multiple transmissive areas TA may be provided in the second display area DA2. The transmissive areas TA may be arranged alternately with the auxiliary light-emitting area Pg along the first direction X and / or the second direction Y. Alternatively, the transmissive areas TA may be arranged to surround the auxiliary light-emitting area Pg.

[0115] In the second display area DA2, the arrangement of the basic unit U, which combines the auxiliary light-emitting area Pg and the transmissive area TA, may be repeated in the X and Y directions.

[0116] In Figure 5, the basic unit U may have a rectangular shape formed by combining one auxiliary light-emitting region Pg and the surrounding transmissive sections TA. The basic unit U is a partition of a repeating shape and does not represent a discontinuity in the configuration. For example, a transmissive section TA included in one basic unit U may be formed integrally with a transmissive section TA included in an adjacent basic unit U.

[0117] In some embodiments, the area occupied by the auxiliary light-emitting region Pg in the basic unit U may be smaller than the area occupied by the transmissive portion TA. For example, the area occupied by the auxiliary light-emitting region Pg may be about 1 / 3 of the area occupied by the transmissive portion TA. Alternatively, the area occupied by the auxiliary light-emitting region Pg may be about 1 / 4 of the basic unit U, and the area occupied by the transmissive portion TA may be about 3 / 4 of the basic unit U.

[0118] A corresponding unit U' can be set in the first display area DA1, having the same area as the basic unit U. In this case, the number of main sub-pixels Pm1, Pm2, and Pm3 included in the corresponding unit U' will be greater than the number of auxiliary sub-pixels Pa1, Pa2, and Pa3 included in the basic unit U.

[0119] Figure 6 is a schematic cross-sectional view along lines I-I' and II-II' in Figure 5.

[0120] Referring to Figure 6, the first display area DA1 has a third main sub-pixel Pm3, and the second display area DA2 has a third auxiliary sub-pixel Pa3 and a transparent area TA. In this case, the third main sub-pixel Pm3 and the third auxiliary sub-pixel Pa3 may be sub-pixels that produce the same color. In some embodiments, the third main sub-pixel Pm3 and the third auxiliary sub-pixel Pa3 can embody the color blue.

[0121] The main sub-pixel Pm may include a first thin-film transistor TFT, a main storage capacitor Cst, and a main organic light-emitting diode OLED. The auxiliary sub-pixel Pa may include a second thin-film transistor TFT', an auxiliary storage capacitor Cst', and an auxiliary organic light-emitting diode OLED'. The transmissive portion TA may have an aperture region TAH corresponding to the transmissive portion TA.

[0122] A component 20 may be located at the bottom of the second display area DA2. Component 20 may be a camera that captures an image or an IR (Infra Red) sensor that transmits / receives infrared light.

[0123] In the second display area DA2, a transmissive section TA is arranged, and light transmitted / received from component 20 may be transmitted through it. For example, light emitted from component 20 can travel along the Z direction through the transmissive section TA, and light generated outside the display device and incident on component 20 can travel along the -Z direction through the transmissive section TA. In some embodiments, component 20 may comprise multiple image sensors, with one image sensor corresponding to one transmissive section TA.

[0124] The following describes a stacked structure of components included in a display device according to one embodiment of the present invention.

[0125] The substrate 100 may contain glass or a polymer resin. The polymer resin may include polyethersulfone (polyethyelene terephthalate, PET), polyacrylate, polyetherimide (PEI), polyethylene naphthalate (PEN), polyethylene terephthalate (PET), polyphenylene sulfide (PPS), polyarylate, polyimide (PI), polycarbonate (PC), or cellulose acetate propionate (CAP). The substrate 100 containing the polymer resin has flexible, rollable, or bendable properties. The substrate 100 may have a multilayer structure including a layer containing the polymer resin and an inorganic layer (not shown).

[0126] The buffer layer 111 is located on the substrate 100 and can reduce or block the penetration of foreign matter, moisture, or outside air from below the substrate 100, and can provide a flat surface on the substrate 100. The buffer layer 111 may contain inorganic materials such as oxides or nitrides, or organic materials or inorganic-organic composites, and may consist of a single layer or multilayer structure of inorganic and organic materials. A barrier layer (not shown) that blocks the penetration of outside air may be further included between the substrate 100 and the buffer layer 111. In some embodiments, the buffer layer 111 is silicon oxide (SiO2) or silicon nitride (SiN X ) may also be provided by ). The buffer layer 111 may be provided such that a first buffer layer 111a and a second buffer layer 111b are stacked on top of each other.

[0127] In the second display region DA2, a lower electrode layer BSM may be placed between the first buffer layer 111a and the second buffer layer 111b. In another embodiment, the lower electrode layer BSM may be placed between the substrate 100 and the first buffer layer 111a. The lower electrode layer BSM is placed beneath the second thin-film transistor TFT' and can prevent the characteristics of the second thin-film transistor TFT' from being degraded by light emitted from components 20 and the like.

[0128] Furthermore, the lower electrode layer BSM is connected to wiring GCL located in other layers via contact holes. The lower electrode layer BSM may be supplied with a constant voltage or signal from the wiring GCL. For example, the lower electrode layer BSM may be supplied with a drive voltage ELVDD or a scan signal. By being supplied with a constant voltage or signal, the lower electrode layer BSM can significantly reduce the likelihood of electrostatic discharge. The lower electrode layer BSM may contain aluminum (Al), platinum (Pt), palladium (Pd), silver (Ag), magnesium (Mg), gold (Au), nickel (Ni), neodymium (Nd), iridium (Ir), chromium (Cr), nickel (Li), calcium (CA), molybdenum (Mo), titanium (Ti), tungsten (W), and / or copper (Cu). The lower electrode layer BSM may be a single layer or multiple layer of the aforementioned materials.

[0129] A first thin-film transistor TFT and a second thin-film transistor TFT' may be arranged on top of the buffer layer 111. The first thin-film transistor TFT includes a first semiconductor layer A1, a first gate electrode G1, a first source electrode S1, and a first drain electrode D1, while the second thin-film transistor TFT includes a second semiconductor layer A2, a second gate electrode G2, a second source electrode S2, and a second drain electrode D2. The first thin-film transistor TFT can be connected to the main organic light-emitting diode OLED of the first display region DA1 to drive the main organic light-emitting diode OLED. The second thin-film transistor TFT' can be connected to the auxiliary organic light-emitting diode OLED' of the second display region DA2 to drive the auxiliary organic light-emitting diode OLED'.

[0130] The first semiconductor layer A1 and the second semiconductor layer A2 are disposed on the buffer layer 111 and may contain polysilicon. In other embodiments, the first semiconductor layer A1 and the second semiconductor layer A2 may contain amorphous silicon. In other embodiments, the first semiconductor layer A1 and the second semiconductor layer A2 may contain oxides of at least one substance selected from the group including indium (In), gallium (Ga), tin (Sn), zirconium (Zr), vanadium (V), hafnium (Hf), cadmium (Cd), germanium (Ge), chromium (Cr), titanium (Ti), and zinc (Zn). The first semiconductor layer A1 and the second semiconductor layer A2 may include a channel region and impurity-doped source and drain regions.

[0131] The first semiconductor layer A1 can be superimposed on the lower electrode layer BSM with the second buffer layer 111b in between. In one embodiment, the width of the first semiconductor layer A1 is formed to be smaller than the width of the lower electrode layer BSM, so that when projected perpendicularly onto the substrate 100, the first semiconductor layer A1 as a whole can be superimposed on the lower electrode layer BSM.

[0132] A first gate insulating layer 112 may be provided so as to cover the first semiconductor layer A1 and the second semiconductor layer A2. The first gate insulating layer 112 may be made of silicon oxide (SiO2), silicon nitride (SiN x The first gate insulating layer 112 may contain an inorganic insulator such as silicon oxynitride (SiON), aluminum oxide (Al2O3), titanium oxide (TiO2), tantalum oxide (Ta2O5), hafnium oxide (HfO2), or zinc oxide (ZnO2). The first gate insulating layer 112 may be a single layer or a multilayer containing the aforementioned inorganic insulator.

[0133] A first gate electrode G1 and a second gate electrode G2 are arranged on top of the first gate insulating layer 112 so as to overlap with the first semiconductor layer A1 and the second semiconductor layer A2, respectively. The first gate electrode G1 and the second gate electrode G2 contain materials such as molybdenum (Mo), aluminum (Al), copper (Cu), and titanium (Ti), and may consist of a single layer or multiple layers. For example, the first gate electrode G1 and the second gate electrode G2 may be single layers of Mo.

[0134] The second gate insulating layer 113 may be provided so as to cover the first gate electrode G1 and the second gate electrode G2. The second gate insulating layer 113 may be made of silicon oxide (SiO2), silicon nitride (SiN x The second gate insulating layer 113 may contain an inorganic insulator such as silicon oxynitride (SiON), aluminum oxide (Al2O3), titanium oxide (TiO2), tantalum oxide (Ta2O5), hafnium oxide (HfO2), or zinc oxide (ZnO2). The second gate insulating layer 113 may be a single layer or a multilayer containing the aforementioned inorganic insulator.

[0135] The first upper electrode CE2 of the main storage capacitor Cst and the second upper electrode CE2' of the auxiliary storage capacitor Cst' may be placed on top of the second gate insulating layer 113.

[0136] In the first display region DA1, the first upper electrode CE2 can be superimposed on the first gate electrode G1 below it. The first gate electrode G1 and the first upper electrode CE2, superimposed with the second gate insulating layer 113 in between, can form a main storage capacitor Cst. The first gate electrode G1 may also be the first lower electrode CE1 of the main storage capacitor Cst.

[0137] In the second display region DA2, the second upper electrode CE2' can be superimposed on the second gate electrode G2 below it. The second gate electrode G2 and the second upper electrode CE2' superimposed across the second gate insulating layer 113 can form an auxiliary storage capacitor Cst'. The first gate electrode G1 may also be the second lower electrode CE1' of the auxiliary storage capacitor Cst'.

[0138] The first upper electrode CE2 and the second upper electrode CE2' may contain aluminum (Al), platinum (Pt), palladium (Pd), silver (Ag), magnesium (Mg), gold (Au), nickel (Ni), neodymium (Nd), iridium (Ir), chromium (Cr), nickel (Li), calcium (CA), molybdenum (Mo), titanium (Ti), tungsten (W), and / or copper (Cu), and may be a single layer or multilayer of the aforementioned materials.

[0139] The interlayer insulating layer 115 may be formed to cover the first upper electrode CE2 and the second upper electrode CE2'. The interlayer insulating layer 115 may be made of silicon oxide (SiO2), silicon nitride (SiN x ), may also contain silicon oxynitride (SiON), aluminum oxide (Al2O3), titanium oxide (TiO2), tantalum oxide (Ta2O5), hafnium oxide (HfO2), or zinc oxide (ZnO2).

[0140] If the first gate insulating layer 112, the second gate insulating layer 113, and the interlayer insulating layer 115 are collectively referred to as the inorganic insulating layer IL, then a structure in which the inorganic insulating layer IL is laminated on the substrate 100 can have a transmittance of approximately 90% or more for infrared wavelengths. For example, light with a wavelength of 900 nm to 1100 nm passing through the substrate 100 and the inorganic insulating layer IL can have a transmittance of approximately 90%.

[0141] The source electrodes S1, S2 and drain electrodes D1, D2 are arranged on an interlayer insulating layer 115. The source electrodes S1, S2 and drain electrodes D1, D2 may contain conductive materials such as molybdenum (Mo), aluminum (Al), copper (Cu), and titanium (Ti), and are formed by a multilayer or monolayer structure containing the aforementioned materials. As an example, the source electrodes S1, S2 and drain electrodes D1, D2 have a Ti / Al / Ti multilayer structure.

[0142] The planarization layer 117 may be positioned to cover the source electrodes S1, S2 and the drain electrodes D1, D2. The planarization layer 117 may have a flat upper surface so that the main pixel electrode 221 and the auxiliary pixel electrode 221' positioned on top of it are formed flat.

[0143] The planarization layer 117 can be formed by a single or multilayer film made of organic material. Such a planarization layer 117 may include general-purpose polymers such as BCB (Benzocyclobutene), polyimide, HMDSO (hexamethyldisiloxane), PMMA (Polymethylmethacrylate), and PS (Polystylene), polymer derivatives having phenolic groups, acrylic polymers, imide polymers, aryl ether polymers, amide polymers, fluorine polymers, p-xylene polymers, alcohol polymers, and blends thereof.

[0144] The planarization layer 117 has an opening that exposes either the first source electrode S1 or the first drain electrode D1 of the first thin-film transistor TFT, and the main pixel electrode 221 may be electrically connected to the first thin-film transistor TFT by contacting the first source electrode S1 or the first drain electrode D1 through the opening.

[0145] Furthermore, the planarization layer 117 includes an opening that exposes either the second source electrode S2 or the second drain electrode D2 of the second thin-film transistor TFT', and the auxiliary pixel electrode 221' is electrically connected to the second thin-film transistor TFT' by contacting either the second source electrode S2 or the second drain electrode D2 through the opening.

[0146] The main pixel electrode 221 and the auxiliary pixel electrode 221' may contain conductive oxides such as indium tin oxide (ITO), indium zinc oxide (IZO), zinc oxide (ZnO), indium oxide (In2O3), indium gallium oxide (IGO), or aluminum zinc oxide (AZO). In other embodiments, the main pixel electrode 221 and the auxiliary pixel electrode 221' may contain a reflective film containing silver (Ag), magnesium (Mg), aluminum (Al), platinum (Pt), palladium (Pd), gold (Au), nickel (Ni), neodymium (Nd), iridium (Ir), chromium (Cr), or compounds thereof. In further embodiments, the main pixel electrode 221 and the auxiliary pixel electrode 221' may further include a film formed of ITO, IZO, ZnO, or In2O3 above / below the aforementioned reflective film. In some embodiments, the main pixel electrode 221 and the auxiliary pixel electrode 221' may also be provided by a structure stacked on ITO / Ag / ITO.

[0147] The pixel definition film 119 can cover the edges of the main pixel electrode 221 and the auxiliary pixel electrode 221'. The pixel definition film 119 includes a first aperture OP1 and a second aperture OP2 that are superimposed on the main pixel electrode 221 and the auxiliary pixel electrode 221', respectively, and define the light-emitting region of the sub-pixel. The pixel definition film 119 can prevent the generation of arcs at the edges of the pixel electrodes 221 and 221' by increasing the distance between the edges of the pixel electrodes 221 and 221' and the opposing electrode 223 above the pixel electrodes 221 and 221'. The pixel definition film 119 can also be formed by methods such as spin coating using organic insulating materials such as polyimide, polyamide, acrylic resin, benzocyclobutene, HMDSO (hexamethyldisiloxane), and phenolic resin.

[0148] If the planarization layer 117 and the pixel definition film 119 are referred to as the organic insulating layer OL, then the organic insulating layer OL can have a transmittance of approximately 90% or more for infrared wavelengths. For example, light with wavelengths of 900 nm to 1100 nm passing through the organic insulating layer OL can have a transmittance of approximately 90%.

[0149] The pixel definition film 119 may include a main intermediate layer (not shown) and an auxiliary intermediate layer (not shown) arranged within the first aperture OP1 and the second aperture OP2, corresponding to the main pixel electrode 221 and the auxiliary pixel electrode 221', respectively. In this case, the main intermediate layer includes a main light-emitting layer 222b, and the auxiliary intermediate layer includes an auxiliary light-emitting layer 222b'. The main light-emitting layer 222b and the auxiliary light-emitting layer 222b' may contain polymeric or low-molecular-weight materials and can emit red, green, blue, or white light.

[0150] The main intermediate layer and / or auxiliary intermediate layer described above may include an organic functional layer 222e positioned above and / or below the main light-emitting layer 222b and the auxiliary light-emitting layer 222b'. The organic functional layer 222e may include a first functional layer 222a and / or a second functional layer 222c. The first functional layer 222a or the second functional layer 222c may be omitted.

[0151] The first functional layer 222a may be positioned below the main light-emitting layer 222b and the auxiliary light-emitting layer 222b'. In one embodiment, the first functional layer 222a may be patterned to correspond to the first aperture OP1 and the second aperture OP2, similar to the main light-emitting layer 222b and the auxiliary light-emitting layer 222b', and positioned inside the first aperture OP1 and the second aperture OP2. In another embodiment, the first functional layer 222a may be positioned to cover the entire surface of the first display area DA1 and the second display area DA2. In yet another embodiment, the first functional layer 222a may be patterned to correspond to the first aperture OP1 and the second aperture OP2, positioned inside the first aperture OP1 and the second aperture OP2, and not positioned in the transparent area TA. In yet another embodiment, the first functional layer 222a may be positioned to shield the entire surface of the first display area DA1 and the second display area DA2 excluding the transparent area TA. For the sake of clarity, the following explanation will focus primarily on the case where the first functional layer 222a is arranged to cover the entire surface of the first display area DA1 and the second display area DA2.

[0152] The first functional layer 222a may be a single layer or multilayer made of organic material. The first functional layer 222a may be a single-layer hole transport layer (HTL). Alternatively, the first functional layer 222a may include a hole injection layer (HIL) and a hole transport layer (HTL). The first functional layer 222a may be formed integrally corresponding to the main sub-pixels Pm and auxiliary sub-pixels Pa included in the first display area DA1 and the second display area DA2. As a result, the first functional layer 222a may be arranged corresponding to the transmissive area TA.

[0153] The second functional layer 222c may be positioned above the main light-emitting layer 222b and the auxiliary light-emitting layer 222b'. In one embodiment, the second functional layer 222c may be patterned to correspond to the first aperture OP1 and the second aperture OP2, similar to the main light-emitting layer 222b and the auxiliary light-emitting layer 222b', and positioned inside the first aperture OP1 and the second aperture OP2. In another embodiment, the second functional layer 222c may be positioned to cover the entire surface of the first display area DA1 and the second display area DA2. In yet another embodiment, the second functional layer 222c may be patterned to correspond to the first aperture OP1 and the second aperture OP2, and positioned inside the first aperture OP1 and the second aperture OP2, but not in the transparent area TA. In yet another embodiment, the second functional layer 222c may be positioned to shield the entire surface of the first display area DA1 and the second display area DA2 excluding the transparent area TA. In the following explanation, for the sake of clarity, we will focus on the case where the second functional layer 222c is arranged to cover the entire surface of the first display area DA1 and the second display area DA2.

[0154] The second functional layer 222c may be a single layer or multilayer made of organic material. The second functional layer 222c may include an electron transport layer (ETL) and / or an electron injection layer (EIL). The second functional layer 222c may be formed integrally with the main sub-pixels Pm and auxiliary sub-pixels Pa contained in the first display area DA1 and the second display area DA2. As a result, the second functional layer 222c may be positioned corresponding to the transmissive area TA.

[0155] A counter electrode 223 is positioned on top of the second functional layer 222c. The counter electrode 223 may contain a conductive material with a low work function. For example, the counter electrode 223 may contain a (semi)transparent layer containing silver (Ag), magnesium (Mg), aluminum (Al), platinum (Pt), palladium (Pd), gold (Au), nickel (Ni), neodymium (Nd), iridium (Ir), chromium (Cr), lithium (Li), calcium CA, or alloys thereof. Alternatively, the counter electrode 223 may further contain a layer such as ITO, IZO, ZnO, or In2O3 on the (semi)transparent layer containing the aforementioned materials. The counter electrode 223 may be integrally formed corresponding to the main sub-pixel Pm and auxiliary sub-pixel Pa contained in the first display area DA1 and the second display area DA2.

[0156] The layer from the main pixel electrode 221 to the counter electrode 223 formed in the first display region DA1 may form a main organic light-emitting diode (OLED). The layer from the auxiliary pixel electrode 221' to the counter electrode 223 formed in the second display region DA2 may form an auxiliary organic light-emitting diode (OLED').

[0157] An upper layer 250 containing an organic substance may be formed on the counter electrode 223. The upper layer 250 may be provided to protect the counter electrode 223 and to improve the light extraction efficiency. The upper layer 250 may contain an organic substance with a refractive index higher than that of the counter electrode 223. Alternatively, the upper layer 250 may be provided by laminating layers having different refractive indices. For example, the upper layer 250 may be provided by laminating a high refractive index layer / low refractive index layer / high refractive index layer. In this case, the refractive index of the high refractive index layer may be 1.7 or higher, and the refractive index of the low refractive index layer may be 1.3 or lower.

[0158] The upper layer 250 may additionally contain LiF. Alternatively, the upper layer 250 may additionally contain silicon oxide (SiO2), silicon nitride (SiN x It may also contain inorganic insulators such as ).

[0159] In this embodiment, the first functional layer 222a, the second functional layer 222c, the counter electrode 223, and the upper layer 250 may each have an aperture region TAH corresponding to the transmission portion TA. That is, each of the first functional layer 222a, the second functional layer 222c, the counter electrode 223, and the upper layer 250 may have an aperture corresponding to the transmission portion TA. Such apertures in the first functional layer 222a, the second functional layer 222c, the counter electrode 223, and the upper layer 250 can also be formed by a laser. In some embodiments, the width of the apertures forming the aperture region TAH may be substantially the same. For example, the aperture width of the counter electrode 223 may be substantially the same as the width of the aperture region TAH.

[0160] Furthermore, in this embodiment, the first functional layer 222a, the second functional layer 222c, and the upper layer 250 may be omitted. In that case, the opening of the counter electrode 223 also becomes the opening region TAH.

[0161] The fact that such an opening region TAH corresponds to a transparent portion TA means that the opening region TAH overlaps with the transparent portion TA. In this case, the area of ​​the opening region TAH may be smaller than the area of ​​the first hole H1 formed in the inorganic insulating layer IL. For this reason, Figure 6 shows that the width Wt of the opening region TAH is smaller than the width W1 of the first hole H1. Here, the area of ​​the opening region TAH and the area of ​​the first hole H1 are also defined as the smallest opening area.

[0162] In some embodiments, a first functional layer 222a, a second functional layer 222c, a counter electrode 223, and an upper layer 250 may be arranged on the sides of the first hole H1, the second hole H2, and the third hole H3. In some embodiments, the inclination of the sides of the first hole H1, the second hole H2, and the third hole H3 with respect to the upper surface of the substrate 100 is less pronounced than the inclination of the sides of the opening region TAH with respect to the upper surface of the substrate 100.

[0163] The formation of an aperture region TAH means that components such as the counter electrode 223 are removed from the transmissive portion TA, and the light transmittance in the transmissive portion TA can increase significantly.

[0164] The main organic light-emitting diode (OLED) and the auxiliary organic light-emitting diode (OLED') may be sealed by a thin film encapsulation layer 300. The thin film encapsulation layer 300 may be placed on the upper layer 250. The thin film encapsulation layer 300 can prevent external moisture and foreign matter from penetrating the main organic light-emitting diode (OLED) and the auxiliary organic light-emitting diode (OLED').

[0165] The thin film encapsulation layer 300 may include at least one inorganic encapsulation layer and at least one organic encapsulation layer. In connection with this, Figure 6 illustrates a structure in which the thin film encapsulation layer 300 is laminated with a first inorganic encapsulation layer 310, an organic encapsulation layer 320, and a second inorganic encapsulation layer 330. In other embodiments, the number of organic encapsulation layers, the number of inorganic encapsulation layers, and the lamination order may be changed.

[0166] The first inorganic encapsulation layer 310 and the second inorganic encapsulation layer 330 may contain one or more inorganic insulators such as aluminum oxide, titanium oxide, tantalum oxide, hafnium oxide, zinc oxide, silicon oxide, silicon nitride, or silicon oxynitride, and may also be formed by chemical vapor deposition (CVD). The organic encapsulation layer 320 may contain a polymer-based material. The polymer-based material may include silicone resins, acrylic resins, epoxy resins, polyimides, and polyethylene.

[0167] The first inorganic sealing layer 310, the organic sealing layer 320, and the second inorganic sealing layer 330 may be integrally formed to cover the display area DA and the sensor area SA. As a result, the first inorganic sealing layer 310, the organic sealing layer 320, and the second inorganic sealing layer 330 may be placed inside the opening area TAH.

[0168] In other embodiments, the organic encapsulation layer 320 is integrally formed to cover the second display area DA2 but is not present in the permeable area TA. That is, the organic encapsulation layer 320 may include an opening corresponding to the permeable area TA. In that case, the first inorganic encapsulation layer 310 and the second inorganic encapsulation layer 330 can come into contact with each other within the opening area TAH.

[0169] Figure 7 is a schematic cross-sectional view showing a display device according to one embodiment of the present invention. In Figure 7, the same reference numerals as in Figure 6 refer to the same components, and their redundant explanations are omitted.

[0170] Referring to Figure 7, the display device may include a first display area DA1 where main sub-pixels Pm are arranged, and a second display area DA2 where an auxiliary light-emitting area (not shown) including auxiliary sub-pixels Pa and a transmissive area TA are arranged. Furthermore, in the display device according to this embodiment, the pixel array structure of the main sub-pixels Pm has a different pixel array structure from that of the auxiliary sub-pixels Pa.

[0171] In this embodiment, at least one of the first functional layer 222a, the second functional layer 222c, and the upper layer 250 may be arranged corresponding to the transparent portion TA. That is, at least one of the first functional layer 222a, the second functional layer 222c, and the upper layer 250 may be arranged inside the opening region TAH.

[0172] On the other hand, the counter electrode 223 has an opening corresponding to the permeable portion TA, and the opening is substantially the same width as the opening region TAH. In this case, the counter electrode 223 may be formed using a mask equipped with a shielding film that shields the permeable portion TA.

[0173] In another embodiment, after forming the counter electrode 223 over its entire surface, the portion of the counter electrode 223 corresponding to the transparent portion TA may be removed with a laser to form an opening in the counter electrode 223.

[0174] Figure 8 is a schematic cross-sectional view showing a display device according to one embodiment of the present invention. In Figure 8, the same reference numerals as in Figure 6 refer to the same components, and their redundant explanations are omitted.

[0175] Referring to Figure 8, the display device may include a first display area DA1 where the main sub-pixels Pm are arranged, and a second display area DA2 where the auxiliary sub-pixels Pa and the transmissive portion TA are arranged. Furthermore, in the display device according to this embodiment, the pixel array structure of the main sub-pixels Pm has a different pixel array structure from that of the auxiliary sub-pixels Pa.

[0176] In this embodiment, the main organic light-emitting diode (OLED) and the auxiliary organic light-emitting diode (OLED') may be covered by a sealing substrate 300'. The sealing substrate 300' includes a transparent material. For example, the sealing substrate 300' may include a glass material. Alternatively, the sealing substrate 300' may include a polymer resin or the like. The sealing substrate 300' can prevent external moisture and foreign matter from penetrating the main organic light-emitting diode (OLED) and the auxiliary organic light-emitting diode (OLED').

[0177] A sealing material, such as a sealant, may be placed between the substrate 100 on which the main organic light-emitting diode (OLED) and the auxiliary organic light-emitting diode (OLED') are formed and the encapsulation substrate 300'. The sealing material can block external moisture and foreign matter from penetrating through the space between the substrate 100 and the encapsulation substrate 300'.

[0178] Figure 9 is a cross-sectional view showing a manufacturing apparatus for a display device according to one embodiment of the present invention. Figure 10 is a perspective view showing the mask assembly shown in Figure 9. Figure 11 is a plan view showing the mask sheet shown in Figure 10.

[0179] Referring to Figures 9 to 11, the display device (not shown) may be manufactured through a display device manufacturing apparatus 400.

[0180] The display device manufacturing apparatus 400 may include a chamber 410, a mask assembly 420, a first support section 430, a second support section 440, a deposition source 450, a magnetic force generation section 460, a vision section 470, and a pressure adjustment section 480.

[0181] The chamber 410 may have a space formed inside, and a portion of the chamber 410 may be formed to be open. In this case, a gate valve 411 may be arranged in the opening of the chamber 410 so as to be openable and closable.

[0182] The mask assembly 420 may be selectively placed inside the chamber 410. In this case, the mask assembly 420 may include a mask frame 421, a mask sheet 422, and a support frame 423.

[0183] The mask frame 421 is formed by connecting multiple frames to each other and may include an opening inside. In this case, the mask frame 421 may include one opening or multiple openings that are separated from each other. In such cases, the mask frame 421 can also be formed in a grid shape, like a window frame. For the sake of explanation, the following will focus on the case where the mask frame 421 has one opening in the center and will be described in detail.

[0184] The mask sheet 422 may be fixed to the mask frame 421 in a tensile state. In this case, the mask sheet 422 may have openings arranged to allow the vapor-deposited material to pass through. One or more mask sheets 422 are provided. If one mask sheet 422 is provided, it can be placed on the mask frame 421 to shield the opening of the mask frame 421. In another embodiment, if multiple mask sheets 422 are provided, the multiple mask sheets 422 can be arranged adjacent to each other along one side of the mask frame 421 to shield the opening of the mask frame 421. For the sake of explanation, the following will focus on the case where multiple mask sheets 422 are provided.

[0185] The mask sheet 422 described above may include a first body portion 422-1 including a main sub-pixel aperture 424a, a second body portion 422-2 including an auxiliary sub-pixel aperture 424b, and a third body portion 422c including a correction aperture 424c.

[0186] The shape of the second fuselage portion 422b can vary. The shape of the second fuselage portion 422b corresponds to the second display area (not shown). For example, if the shape of the second display area is circular, the shape of the second fuselage portion 422b may also be circular. In another embodiment, if the shape of the second display area is polygonal, the shape of the second fuselage portion 422b may also be polygonal. For the sake of clarity, the following description will focus on the case where the shape of the second display area and the second fuselage portion 422b are circular.

[0187] The second body portion 422b may be positioned close to the side of the mask sheet 422 in a plan view. For example, the second body portion 422b may be positioned at the edge of a passage region defined as an area through which the vapor-deposited material passes, partitioned by adjacent support frames 423 and the frame of the mask sheet 422. In such a case, the passage region may be defined at the end of the mask sheet 422 as the mask frame 422, the frame of the mask sheet 421, and the support frame 423.

[0188] The second body portion 422b and the third body portion 422c described above are also defined by the main sub-pixel aperture 424a. For example, the shapes of the second body portion 422b and the third body portion 422c are also defined as the regions formed by connecting the vertices of the main sub-pixel aperture 424a that are arranged to surround the respective frames of the second body portion 422b and the third body portion 422c. In another embodiment, the second body portion 422b and the third body portion 422c are also defined as the portions that overlap with the frame of the component, assuming that the frame of the component overlaps with the mask sheet 422. In such a case, the second body portion 422b may be defined by connecting any lines that pass through the space between adjacent main sub-pixel apertures 424a and auxiliary sub-pixel apertures 424b. The third body portion 422c may also be defined by connecting any lines that pass through the space between adjacent main sub-pixel apertures 424a and correction apertures 424c. In this case, the arbitrary line can have a shape similar to the frame of a component. Below, for the sake of explanation, we will focus on the case where the second fuselage section 422b and the third fuselage section 422c are defined using components.

[0189] The main sub-pixel aperture 424a and the auxiliary sub-pixel aperture 424b may have different shapes. Similarly, the main sub-pixel aperture 424a and the correction aperture 424c may have different shapes. In such cases, the auxiliary sub-pixel aperture 424b and the correction aperture 424c may have the same shape and size. For example, the planar shape of the main sub-pixel aperture 424a may be a rhombus, while the shapes of the auxiliary sub-pixel aperture 424b and the correction aperture 424c may be rectangles or squares.

[0190] The second fuselage section 422b and the third fuselage section 422c described above may be arranged on opposite sides of each other with respect to a first centerline CL1 that passes through the longitudinal direction of the first fuselage section 422a (for example, the Y direction in Figure 11). Furthermore, the second fuselage section 422b and the third fuselage section 422c do not have to be arranged on any straight line parallel to the direction perpendicular to the longitudinal direction of the first fuselage section 422a (for example, the X direction in Figure 11). In such cases, the second fuselage section 422b and the third fuselage section 422c may be arranged alternately. In particular, when multiple second fuselage sections 422b and third fuselage sections 422c are arranged, each second fuselage section 422b and each third fuselage section 422c may be arranged in a zigzag or serpentine pattern relative to each other.

[0191] The second fuselage portion 422b and the third fuselage portion 422c may be positioned at different distances from one end of the mask sheet 422 along the longitudinal direction of the mask sheet 422. For example, assuming that one end of the mask sheet 422 is on the upper side of Figure 11, the distance from the second fuselage portion 422b to one end of the mask sheet 422 is shorter than the distance from the third fuselage portion 422c to one end of the mask sheet 422. In another embodiment, although not shown in Figure 11, the distance from the second fuselage portion 422b to one end of the mask sheet 422 is longer than the distance from the third fuselage portion 422c to one end of the mask sheet 422.

[0192] Multiple second fuselage sections 422b may be provided, and these multiple second fuselage sections 422b may be arranged in a line and spaced apart from each other in the longitudinal direction of the mask sheet 422. Also, if multiple third fuselage sections 422c are provided, these multiple third fuselage sections 422c may be arranged in a line and spaced apart from each other in the longitudinal direction of the mask sheet 422.

[0193] The second body section 422b and the third body section 422c described above may be arranged at the same distance from the frame (or side edge) of the mask sheet 422. For example, the first distance D1 from the frame of the auxiliary sub-pixel aperture 424b located on the outermost edge of the second body section 422b to the frame of the mask sheet 422, and the second distance D2 from the frame of the correction aperture 424c located on the outermost edge of the third body section 422c to the frame of the mask sheet 422 may be the same. In this case, the outermost edge of each body section may be the body section with the shortest straight-line distance to the frame of the mask sheet 422.

[0194] Multiple auxiliary sub-pixel apertures 424b and correction apertures 424c as described above may be provided. In this case, the auxiliary sub-pixel apertures 424b may be arranged in correspondence with an array of auxiliary pixels that indicate one color. In the above case, the sum of the areas of the multiple auxiliary sub-pixel apertures 424b arranged in one second body section 422b may be the same as the sum of the areas of the multiple correction apertures 424c arranged in one third body section 422c. In another embodiment, the sum of the areas of the multiple auxiliary sub-pixel apertures 424b arranged in multiple second body sections 422b may be the same as the sum of the areas of the multiple correction apertures 424c arranged in multiple third body sections 422c. In the following, for the sake of explanation, we will focus on the case where the sum of the areas of the multiple auxiliary sub-pixel apertures 424b arranged in one second body section 422b is the same as the sum of the areas of the multiple correction apertures 424c arranged in one third body section 422c.

[0195] The support frame 423 may be positioned in the opening of the mask frame 421 and may either shield the space between adjacent mask sheets 422 or be arranged perpendicular to the longitudinal direction of the mask sheets 422.

[0196] In the above-described case, the support frames 423 arranged perpendicular to the longitudinal direction of the mask sheet 422 may be arranged to completely shield the third body portion 422c. That is, when the support frames 423 are arranged, the corrective opening 424c of the third body portion 422c is completely shielded, thereby preventing the vapor-deposited material from passing through the corrective opening 424c.

[0197] The mask assembly 420 described above can be manufactured by joining a mask sheet 422 and a support frame 423 onto a mask frame 421. In this case, the mask sheet 422 may be fixed by welding while being stretched by the mask frame 421.

[0198] In such cases, if only the second body portion 422b is placed on the mask sheet 422, the mask sheet 422 will be distorted by the second body portion 422b. For example, if the shape of the main sub-pixel aperture 424a and the shape of the auxiliary sub-pixel aperture 424b are different, the mask sheet 422 will not deform uniformly across its entire surface when tensile, resulting in areas where stress is concentrated. Also, if the second body portion 422b is placed close to the outer edge of the mask sheet 422, the mask sheet 422 may be deformed unpredictably by the second body portion 422b. In such cases, even if the deposition process is carried out on the display substrate D through the mask assembly 420 after the mask assembly 420 has been completely manufactured, it becomes difficult to deposit the deposition material onto the display substrate D in a uniform pattern.

[0199] However, as described above, by providing a third fuselage section 422c and positioning the third fuselage section 422c on the opposite side of the section where the second fuselage section 422b is located, the deformation of the mask sheet 422 caused by the second fuselage section 422b can be made identical or nearly identical in the section where the third fuselage section 422c is located.

[0200] Therefore, the mask assembly 420 described above can prevent abnormal deformation of the mask sheet 422 when fixing the mask sheet 422 to the mask frame 421.

[0201] The first support section 430 can support the substrate 100. In this case, the first support section 430 can adjust the position of the substrate 100. For example, the first support section 430 may include a UVW stage.

[0202] The second support portion 440 may have the mask assembly 420 placed on it. In this case, the second support portion 440 can adjust the position of the mask assembly 420, similar to the first support portion 430.

[0203] Of the first support portion 430 and the second support portion 440 described above, at least one is movable up and down inside the chamber 410. In such a case, at least one of the first support portion 430 and the second support portion 440 can adjust the distance between the display substrate D and the mask frame 421.

[0204] The deposition source 450 can vaporize or sublimate the deposition material after it has been contained within it and supply it to the chamber 410. In this case, the deposition source 450 may include a heater inside, and by operating the heater, the deposition material inside the deposition source 450 can be heated, causing the deposition material to melt or sublimate. In the above case, the deposition source 450 may be located in the center or at the edge of the chamber 410. For the sake of explanation, the following will focus on the case where the deposition source 450 is located at the edge of the chamber 410.

[0205] The magnetic force generating unit 460 is positioned in the chamber 410 to bring the substrate 100 and the mask assembly 420 into close contact. In this case, the magnetic force generating unit 460 may include an electromagnet or permanent magnet to generate magnetic force.

[0206] The vision unit 470 is positioned in the chamber 410 and can capture images of the positions of the mask assembly 420 and the substrate 100. In this process, the vision unit 470 can capture images of at least one alignment mark or the like on either the mask assembly 420 or the substrate 100.

[0207] The pressure regulating unit 480 is connected to the chamber 410 and can regulate the pressure inside the chamber 410. In this case, the pressure regulating unit 480 may also include a connecting pipe 481 connected to the chamber 410 and a pump 482 located in the connecting pipe 481.

[0208] Observing the operation of the display device manufacturing apparatus 400 as described above, the display substrate D and the mask assembly 420 can be loaded into the chamber 410. In this case, the display substrate D may be a structure in which buffer layers 111 to the first functional layer 222a are laminated on the substrate 100, as shown in Figures 6 to 8.

[0209] In the vision unit 470, the positions of the display substrate D and the mask assembly 420 are captured, and based on this, the position of at least one of the display substrate D and the mask assembly 420 can be adjusted to align the positions of the display substrate D and the mask assembly 420. Subsequently, the mask assembly 420 and the display substrate D can be brought into close contact with the magnetic force generation unit 460.

[0210] When the deposition source 450 supplies the deposition material, the deposition material may pass through the mask assembly 420 and be deposited onto the display substrate D. In this case, the deposition material can be deposited on the display substrate D to form a main light-emitting layer (not shown) and an auxiliary light-emitting layer (not shown). In such a case, the pressure adjustment unit 480 can discharge the gas inside the chamber 410 to the outside.

[0211] The process described above may be carried out sequentially using different display device manufacturing equipment (not shown) to form blue, red, and green light-emitting layers. In such cases, the structure may use different mask assemblies 420 for each light-emitting layer. For example, to place the blue light-emitting layer on the display substrate D, a mask assembly including a first mask sheet (not shown) may be used, and to place the red light-emitting layer on the display substrate D, a mask assembly including a second mask sheet (not shown) may be used. Furthermore, to place the green light-emitting layer on the display substrate D, a mask assembly including a third mask sheet (not shown) may be used.

[0212] After forming each light-emitting layer as described above, a display device can be manufactured by sequentially forming a second functional layer (not shown), a counter electrode (not shown), and a sealing member.

[0213] Therefore, the display device manufacturing apparatus 400 can form a light-emitting layer on the display substrate D with a precise pattern by using a mask assembly 420 that minimizes deformation.

[0214] The display device manufacturing apparatus 400 can minimize defects during the manufacturing of the display device.

[0215] Figures 12A and 12B are plan views showing a portion of the first mask sheet of a manufacturing apparatus for a display device according to one embodiment of the present invention.

[0216] Referring to Figures 12A and 12B, the first mask sheet (not shown) is similar to the mask sheet 422 shown in Figure 10. In this case, a first main sub-pixel opening 424a-1 may be arranged in the first body portion 422a of the first mask sheet, and a first auxiliary sub-pixel opening 424b-1 may be arranged in the second body portion 422b of the first mask sheet. Furthermore, a first correction opening 424c-1 may be arranged in the third body portion 422c of the first mask sheet. In such a case, the first main sub-pixel opening 424a-1 may be formed in correspondence with the aforementioned first main sub-pixel (not shown). Furthermore, the first auxiliary sub-pixel opening 424b-1 may be formed in correspondence with the first auxiliary sub-pixel (not shown). The deposited material that passes through such first main sub-pixel openings 424a-1 and first auxiliary sub-pixel openings 424b-1 can form light-emitting layers arranged on the first main sub-pixel and the first auxiliary sub-pixel.

[0217] In the above-described case, the first correction opening 424c-1 of the third body portion 422c of the first mask sheet may have the same size and shape as the first auxiliary sub-pixel opening 424b-1 and be arranged in the same pattern.

[0218] In the above-described case, the distance from the frame of the second fuselage section 422b to the frame of the first mask sheet and the distance from the frame of the third fuselage section 422c to the frame of the first mask sheet may be the same as shown in Figure 11.

[0219] Furthermore, if multiple second fuselage sections 422b and multiple third fuselage sections 422c are provided, they may be arranged in a zigzag pattern as shown in Figure 11. In particular, multiple second fuselage sections 422b may be arranged in a line with each other, and multiple third fuselage sections 422c may also be arranged in a line with each other. In such a case, multiple second fuselage sections 422b and multiple third fuselage sections 422c may be arranged in each part of the first mask sheet that is divided based on an arbitrary straight line that is parallel to the longitudinal direction of the first mask sheet and passes through the center of the first mask sheet.

[0220] Figures 13A and 13B are plan views showing a portion of the second mask sheet of a manufacturing apparatus for a display device according to one embodiment of the present invention.

[0221] Referring to Figures 13A and 13B, a second main sub-pixel opening 424a-2 may be positioned in the first body portion 422a of the second mask sheet (not shown). In this case, the second main sub-pixel opening 424a-2 may be positioned at a different location from the first main sub-pixel opening 424a-1. In this case, the vapor-deposited material that passes through the second main sub-pixel opening 424a-2 can form a light-emitting layer positioned in the second main sub-pixel (not shown). In this case, the vapor-deposited material that passes through the first main sub-pixel opening 424a-1 and the second main sub-pixel opening 424a-2 may be made of different materials.

[0222] The second auxiliary subpixel opening 424b-2, which is positioned in the second body portion 422b of the second mask sheet, may be positioned in correspondence with a second auxiliary subpixel (not shown). When the first mask sheet (not shown) and the second mask sheet are stacked on top of each other, the second auxiliary subpixel opening 424b-2 may be formed such that it overlaps with the first auxiliary subpixel opening 424b-1. Furthermore, the shape and size of the first auxiliary subpixel opening 424b-1 may differ from the shape and size of the second auxiliary subpixel opening 424b-2.

[0223] In the above-described case, the distance from the frame of the second fuselage section 422b to the frame of the second mask sheet and the distance from the frame of the third fuselage section 422c to the frame of the second mask sheet may be the same as shown in Figure 11.

[0224] Furthermore, if multiple second fuselage sections 422b and multiple third fuselage sections 422c are provided, they may be arranged in a zigzag pattern as shown in Figure 11. In particular, multiple second fuselage sections 422b may be arranged in a line with each other, and multiple third fuselage sections 422c may also be arranged in a line with each other. In such a case, multiple second fuselage sections 422b and multiple third fuselage sections 422c may be arranged in each part of the second mask sheet that is divided based on an arbitrary straight line that is parallel to the longitudinal direction of the second mask sheet and passes through the center of the second mask sheet.

[0225] A second correction aperture 424c-2 may be provided in such a third body portion 422c. In such a case, the second correction aperture 424c-2 may be formed identically to or similarly to the second auxiliary sub-pixel aperture 424b-2 described above. Furthermore, if multiple second correction apertures 424c-2 are provided, they may be arranged on the third body portion 422c in the same manner as the arrangement of multiple second auxiliary sub-pixel apertures 424b-2.

[0226] Figures 14A and 14B are plan views showing a portion of the third mask sheet of a manufacturing apparatus for a display device according to one embodiment of the present invention.

[0227] Referring to Figures 14A and 14B, the third mask sheet (not shown) may include a first body portion 422a containing a third main sub-pixel aperture 424a-3, a second body portion 422b containing a third auxiliary sub-pixel aperture 424b-3, and a third body portion 423c containing a third correction aperture 424c-3.

[0228] In the above-mentioned case, the first to third fuselage sections 422a to 422c may be similar to those shown in Figure 11.

[0229] In the above-described case, the third main sub-pixel aperture 424a-3 and the third auxiliary sub-pixel aperture 424b-3 may be formed corresponding to the third main pixel (not shown) and the third auxiliary pixel (not shown), respectively. In such a case, the deposited material can pass through the third main sub-pixel aperture 424a-3 and the third auxiliary sub-pixel aperture 424b-3 to form the light-emitting layers of the third main pixel and the third auxiliary pixel, respectively.

[0230] In the above-described case, the distance from the frame of the second fuselage section 422b to the frame of the third mask sheet and the distance from the frame of the third fuselage section 422c to the frame of the third mask sheet may be the same as shown in Figure 11.

[0231] Furthermore, if multiple second fuselage sections 422b and multiple third fuselage sections 422c are provided, they may be arranged in a zigzag pattern as shown in Figure 11. In particular, multiple second fuselage sections 422b may be arranged in a line with each other, and multiple third fuselage sections 422c may also be arranged in a line with each other. In such a case, multiple second fuselage sections 422b and multiple third fuselage sections 422c may be arranged in each portion of the third mask sheet that is divided based on an arbitrary straight line that is parallel to the longitudinal direction of the third mask sheet and passes through the center of the third mask sheet.

[0232] On the other hand, the third body portion of the first to third mask sheets, as described above, can be deformed in various ways other than in the above case. In this case, since the deformations of the first to third mask sheets are similar to each other, the embodiment relating to the deformation of the third body portion of the first mask sheet will be described in detail below.

[0233] Figure 15 is a plan view showing a portion of the first mask sheet of a manufacturing apparatus for a display device according to another embodiment of the present invention.

[0234] Referring to Figure 15, the first mask sheet (not shown) may include a first body portion 422a-1 including a first main sub-pixel aperture 424a-1, a second body portion (not shown) including a first auxiliary sub-pixel aperture (not shown), and a third body portion 422c-1 including a first correction aperture 424c-1. In this case, the first body portion 422a-1 and the second body portion 422b-1 are the same as or similar to those described in Figures 11 to 12B, so a detailed explanation is omitted.

[0235] The third body section 422c-1 may include a plurality of first correction apertures 424c-1. In this case, the first correction apertures 424c-1 may differ from the first auxiliary sub-pixel apertures in at least one of their size and shape. For the sake of explanation, the following description will focus on the case where the first correction apertures 424c-1 differ in size from the first auxiliary sub-pixel apertures.

[0236] As described above, if the size of the first correction aperture 424c-1 is smaller than the size of the first auxiliary sub-pixel aperture, the number of first correction apertures 424c-1 will be greater than the number of first auxiliary sub-pixel apertures. On the other hand, if the size of the first correction aperture 424c-1 is larger than the size of the first auxiliary sub-pixel aperture, the number of first correction apertures 424c-1 will be less than the number of first auxiliary sub-pixel apertures.

[0237] In the above-described case, the sum of the areas of the multiple first correction apertures 424c-1 may be the same as the sum of the areas of the multiple first auxiliary sub-pixel apertures.

[0238] In the above-described case, the sum of the areas of the multiple first correction apertures 424c-1 is the same as the sum of the areas of the multiple first auxiliary sub-pixel apertures, and when the first mask sheet is stretched, the amount of deformation generated from both sides of the first mask sheet can be kept substantially similar.

[0239] The above-mentioned details can be applied similarly to the second mask sheet (not shown) and the third mask sheet (not shown), although they are not illustrated.

[0240] Figure 16 is a plan view showing a first mask sheet of a manufacturing apparatus for a display device according to yet another embodiment of the present invention.

[0241] Referring to Figure 16, the first mask sheet (not shown) may include a third body portion 422c-1 containing one first correction aperture 424c-1. In this case, the shape and size of the first correction aperture 424c-1 may differ from the shape and size of the first auxiliary sub-pixel aperture (not shown). For example, the first auxiliary sub-pixel aperture may be rectangular, as shown in Figure 12A. In this case, the first correction aperture 424c-1 may be square, as shown in Figure 16.

[0242] In the above-described case, the size of the first correction aperture 424c-1 is larger than the size of the first auxiliary sub-pixel aperture. In this case, in plan view, the area of ​​the first correction aperture 424c-1 may be the same as the sum of the areas of the multiple first auxiliary sub-pixel apertures arranged inside the second body portion (not shown).

[0243] In the above-described case, the sum of the areas of the multiple first correction apertures 424c-1 is the same as the sum of the areas of the multiple first auxiliary sub-pixel apertures, and when the first mask sheet is stretched, the amount of deformation generated from both sides of the first mask sheet can be kept substantially similar.

[0244] The above-mentioned details can be applied similarly to the second mask sheet (not shown) and the third mask sheet (not shown), although they are not illustrated.

[0245] Figure 17 is a plan view showing a part of the mask sheet of a manufacturing apparatus for a display device according to yet another embodiment of the present invention.

[0246] Referring to Figure 17, the mask sheet 422 may include a first mask sheet (not shown), a second mask sheet (not shown), and a third mask sheet (not shown), each having openings corresponding to the placement positions of each light-emitting layer.

[0247] In the above-described case, the mask sheet 422 may include a first body portion 422a including a main sub-pixel aperture 424a, a second body portion 422b including an auxiliary sub-pixel aperture 424b, and a third body portion 422c including a correction aperture 424c.

[0248] In the above case, the first fuselage portion 422a and the second fuselage portion 422b may be formed as shown in Figure 11. The third fuselage portion 422c may be formed symmetrically with respect to a second centerline CL2 that passes through the center of the mask sheet 422, while being perpendicular to the first centerline CL1. In this case, if there are multiple third fuselage portions 422c, the area of ​​each third fuselage portion 422c on the plane will decrease or increase as it moves further away from the second centerline CL2. In such a case, the correction opening 424c located inside the third fuselage portion 422c may be formed in a variety of shapes. For example, the correction opening 424c may have a shape as shown in Figure 12B, Figure 15, or Figure 16.

[0249] In the above-described case, the sum of the areas of each auxiliary sub-pixel aperture 424b arranged inside the multiple second body portions 422b may be the same as the sum of the areas of each correction aperture 424c. That is, the sum of the areas of the auxiliary sub-pixel apertures 424b arranged throughout the mask sheet 422 and the sum of the areas of the correction apertures 424c arranged throughout the mask sheet 422 may be the same as each other.

[0250] In the above-described case, the sum of the areas of the auxiliary sub-pixel apertures 424b arranged on both sides of the mask sheet 422 and the sum of the areas of the correction apertures 424c become the same, thereby preventing the mask sheet 422 from being distorted or stress from concentrating in one area of ​​the mask sheet 422 when it is subjected to tension.

[0251] The above-mentioned details can be applied similarly to the first mask sheet (not shown), the second mask sheet (not shown), and the third mask sheet (not shown), although they are not illustrated.

[0252] Figure 18 is a plan view showing a portion of the mask sheet of a manufacturing apparatus for a display device according to yet another embodiment of the present invention.

[0253] Referring to Figure 18, the mask sheet 422 may be formed such that a pair of second body portions 422b are arranged between adjacent support frames 423. In this case, the mask sheet 422 may include a pair of third body portions 422c having the same shape as each second body portion 422b. In another embodiment, if the pair of second body portions 422b have different shapes, the pair of third body portions 422c may also have different shapes corresponding to the pair of second body portions 422b. In such a case, the shapes of the auxiliary sub-pixel aperture 424b and the correction aperture 424c may also be formed in a variety of ways as described above. In yet another embodiment, even if the pair of second body portions 422b have the same shape, the pair of third body portions 422c may be formed differently from each other. For example, each third body portion 422c may have one of the various third body portion shapes described above. In this case, the shapes of the auxiliary sub-pixel aperture 424b and the correction aperture 424c may also be formed in a variety of ways as described above.

[0254] In addition to the above-mentioned case, the shapes of the third body portion 422c and the correction opening 424c can be combined in various ways, as described above. In such cases, the shapes and sizes of the second body portion 422b, the auxiliary sub-pixel opening 424b, the third body portion 422c, and the correction opening 424c can be determined so that the sum of the areas of the auxiliary sub-pixel openings 424b arranged on one mask sheet 422 is the same as the sum of the areas of the correction openings 424c.

[0255] Therefore, when placing the mask sheet 422 on a mask frame (not shown), a precise deposition pattern can be formed by ensuring uniform deformation of the mask sheet 422. Furthermore, the distortion of the mask sheet 422 can be minimized.

[0256] The above-mentioned details can be applied similarly to the first mask sheet (not shown), the second mask sheet (not shown), and the third mask sheet (not shown), although they are not illustrated.

[0257] When manufacturing a display device (not shown) using the first to third mask sheets as described above, the second display area DA2, which is not shown but is shown in Figure 1, may be arranged adjacent to each other on the first display area DA1.

[0258] Figure 19 is a schematic plan view showing the arrangement of subpixels and transparent parts arranged in the second display area of ​​a display device according to yet another embodiment of the present invention.

[0259] Referring to Figure 19, the pixel arrangement structure of the second display area DA2 can also be provided by an S-stripe structure. In this embodiment, the auxiliary sub-pixels Pa included in one auxiliary light-emitting area Pg each contain a total of three auxiliary sub-pixels Pa: one second auxiliary sub-pixel Pa2, one third auxiliary sub-pixel Pa3, and one first auxiliary sub-pixel Pa1.

[0260] In this embodiment, the first row 1I may alternately arrange the second auxiliary subpixel Pa2 and the third auxiliary subpixel Pa3, and the adjacent second row 2I may have the first auxiliary subpixel Pa1. In this case, the second auxiliary subpixel Pa2 and the third auxiliary subpixel Pa3 are arranged in a rectangle with the longer side in the X direction, and the first auxiliary subpixel Pa1 is also arranged in a rectangle with the longer side in the Y direction. The length of the first auxiliary subpixel Pa1 in the Y direction is the same as, or larger than, the combined distance of the second auxiliary subpixel Pa2 and the length of the third auxiliary subpixel Pa3 in the Y direction. As a result, the size of the first auxiliary subpixel Pa1 may be larger than the sizes of the second auxiliary subpixel Pa2 and the third auxiliary subpixel Pa3.

[0261] In this embodiment, the area occupied by one auxiliary light-emitting region Pg in the basic unit U may be approximately 1 / 4 of the basic unit U. Although Figure 19 shows that the basic unit U contains only one auxiliary light-emitting region Pg, in other embodiments, the basic unit U may contain two or more auxiliary light-emitting regions Pg. Furthermore, the area of ​​the auxiliary sub-pixel Pa included in the auxiliary light-emitting region Pg may also be varied in various ways.

[0262] In the above-described case, the subpixels arranged in the first display area (not shown) are the same as those described in Figure 5.

[0263] Figure 20 is a plan view showing a portion of the first mask sheet of a manufacturing apparatus for a display device according to yet another embodiment of the present invention.

[0264] Referring to Figure 20, the first mask sheet (not shown) may include a third fuselage portion 422c-1 on which the first correction opening 424c-1 is located. In this case, the first correction opening 424c-1 is substantially identical or similar in form to the first auxiliary subpixel shown in Figure 19. In such a case, the third fuselage portion 422c-1 and the first correction opening 424c-1 are not limited to these and may have various forms.

[0265] As described above, if the morphology of the first auxiliary subpixel differs from that of the first main subpixel, the first main subpixel aperture 424a-1 that forms the pattern of the first main subpixel and the first auxiliary subpixel aperture 424b-1 that forms the pattern of the first auxiliary subpixel will differ from each other. This can lead to problems such as the first mask sheet becoming distorted or not deforming uniformly when the first mask sheet is stretched.

[0266] To solve the aforementioned problems, by arranging the third fuselage portion 422c-1, which has the same shape as the second fuselage portion (not shown), in a diagonal direction with respect to the longitudinal direction of the mask sheet as described above, not only is the deformation of the mask sheet minimized, but the deformation of the mask sheet can also be made somewhat uniform on the front surface of the mask sheet. In particular, instead of the deformation of the side surface of the mask sheet and the other parts of the mask sheet being changed differently by the second fuselage portion, the portion of the mask sheet where the third fuselage portion 422c-1 is located and the portion of the mask sheet where the second fuselage portion is located can be deformed similarly through the third fuselage portion 422c-1.

[0267] Therefore, by predicting or ensuring uniform deformation of the mask sheet used when forming subpixels with a different shape from the first display area in the second display area, it is possible to manufacture a display device with a precise pattern.

[0268] On the other hand, the shape and number of the first corrective openings 424c-1 of the third fuselage section 422c-1 are not limited to those described above, and can be modified to be the same as or similar to those described above.

[0269] The above-mentioned details can be applied similarly to the second mask sheet (not shown) and the third mask sheet (not shown), although they are not illustrated.

[0270] Figure 21 is a schematic plan view showing the arrangement of subpixels and transparent parts arranged in the second display area of ​​a display device according to yet another embodiment of the present invention.

[0271] Referring to Figure 21, the pixel arrangement structure of the second display area DA2 can also be provided by a stripe structure. That is, the second auxiliary subpixel Pa2, the third auxiliary subpixel Pa3, and the first auxiliary subpixel Pa1 may be arranged parallel to each other along the X direction. In this case, the second auxiliary subpixel Pa2, the third auxiliary subpixel Pa3, and the first auxiliary subpixel Pa1 may have a longer side in the Y direction.

[0272] Alternatively, different from what is shown in the figure, the second auxiliary sub-pixel Pa2, the third auxiliary sub-pixel Pa3, and the first auxiliary sub-pixel Pa1 may be arranged in parallel along the Y direction. At this time, the second auxiliary sub-pixel Pa2, the third auxiliary sub-pixel Pa3, and the first auxiliary sub-pixel Pa1 can have a long side in the X direction.

[0273] In such a case, the sub-pixels arranged in the first display area (not shown) are the same as those described in the explanation of FIG. 5.

[0274] FIG. 22 is a plan view showing a part of a first mask sheet of a manufacturing apparatus for a display device according to still another embodiment of the present invention.

[0275] Referring to FIG. 22, the first mask sheet (not shown) may include a third body portion 422c-1 in which a first correction opening 424c-1 is disposed. At this time, the first correction opening 424c-1 is substantially the same as or similar to the form of the first auxiliary sub-pixel shown in FIG. 21. In such a case, the third body portion 422c-1 and the first correction opening 424c-1 may have various forms, not limited thereto.

[0276] As shown in FIG. 22, a plurality of first correction openings 424c-1 may be provided inside the third body portion 422c-1. The plurality of first correction openings 424c-1 may be arranged at intervals from each other. Each such first correction opening 424c-1 may have various forms and various numbers as described above. In such a case, the shape and the number of the first correction openings 424c-1 may be adjusted so that the total area of the first correction openings 424c-1 becomes the same as the total area of the first auxiliary sub-pixel openings 424b-1.

[0277] Therefore, by making the deformation of the mask sheet used when forming sub-pixels having a shape different from that of the first display area in the second display area predictable or uniform, a display device having a precise pattern can be manufactured.

[0278] Although not shown in the drawings, the above-mentioned content can be applied similarly to the second mask sheet (not shown) and the third mask sheet (not shown).

[0279] Figure 23 is a schematic plan view showing the arrangement of subpixels and transparent parts arranged in the second display area of ​​a display device according to yet another embodiment of the present invention.

[0280] Referring to Figure 23, multiple auxiliary subpixels Pa may be arranged in the second display area DA2. Each auxiliary subpixel Pa can emit one of the following colors of light: red, green, blue, and white.

[0281] The component region CA has an auxiliary light-emitting region Pg and a transmission region TA, each containing at least one auxiliary subpixel Pa. The auxiliary light-emitting region Pg and the transmission region TA are arranged alternately along the X and Y directions, and may be arranged, for example, in a grid. In that case, the component region CA may have multiple auxiliary light-emitting regions Pg and multiple transmission regions TA.

[0282] An auxiliary light-emitting region Pg can be defined as a subpixel assembly formed by grouping multiple auxiliary subpixels Pa into a predefined unit. For example, as shown in Figure 23, one auxiliary light-emitting region Pg may contain eight auxiliary subpixels Pa arranged in a pentile structure. That is, one auxiliary light-emitting region Pg may contain two second auxiliary subpixels Pa2, four third auxiliary subpixels Pa3, and two first auxiliary subpixels Pa1. In this case, the first auxiliary subpixels Pa1 can emit blue light, the second auxiliary subpixels Pa2 can emit red light, and the third auxiliary subpixels Pa3 can emit green light.

[0283] In the component region CA, basic units U, each comprising a predetermined number of auxiliary light-emitting regions Pg and a predetermined number of transmission regions TA, may be repeatedly arranged in the X and Y directions. In Figure 23, the basic unit U may have a rectangular shape formed by combining two auxiliary light-emitting regions Pg and two transmission regions TA arranged around them. The basic unit U is a partition of a repeating shape and does not signify a discontinuity in the configuration.

[0284] A corresponding unit U' can be set in the main display area MDA, having the same area as the basic unit U. In this case, the number of main subpixels Pm included in the corresponding unit U' may be greater than the number of auxiliary subpixels Pa included in the basic unit U. That is, the number of auxiliary subpixels Pa included in the basic unit U may be 16, and the number of main subpixels Pm included in the corresponding unit U' may be 32, and the number of auxiliary subpixels Pa and main subpixels Pm arranged per unit area may be in a ratio of 1:2.

[0285] As shown in Figure 23, the arrangement structure of the auxiliary subpixels Pa is a pentile structure, and the pixel arrangement structure of the component area CA, which is provided at half the resolution of the main display area MDA, is called a 1 / 2 pentile structure. The number and arrangement method of the auxiliary subpixels Pa included in the auxiliary light-emitting area Pg are also modified in design depending on the resolution of the component area CA.

[0286] Figure 24 is a plan view showing a portion of the first mask sheet of a manufacturing apparatus for a display device according to yet another embodiment of the present invention.

[0287] Referring to Figure 24, the first mask sheet (not shown) may include a first body portion 422a-1 on which the first main sub-pixel aperture 424a-1 is located, a second body portion (not shown) on which the first auxiliary sub-pixel aperture (not shown) is located, and a third body portion 422a-3 on which the first correction aperture 424c-1 is located.

[0288] In the above-described case, the first main sub-pixel aperture 424a-1 and the first auxiliary sub-pixel aperture may have the same shape. In this case, the first main sub-pixel aperture 424a-1 and the first auxiliary sub-pixel aperture may be the same size or different in size.

[0289] First, if the first main sub-pixel aperture 424a-1 and the first auxiliary sub-pixel aperture have the same shape and size, the number of first main sub-pixel apertures 424a-1 per unit area of ​​the first body portion 422a-1 or the sum of the areas of the first main sub-pixel apertures 424a-1 may differ from the number of first auxiliary sub-pixel apertures per unit area of ​​the second body portion or the sum of the areas of the first auxiliary sub-pixel apertures. Specifically, the number of first main sub-pixel apertures 424a-1 per unit area of ​​the first body portion 422a-1 is greater than the number of first auxiliary sub-pixel apertures per unit area of ​​the second body portion. Alternatively, the sum of the areas of the first main sub-pixel apertures 424a-1 per unit area of ​​the first body portion 422a-1 is greater than the sum of the areas of the first auxiliary sub-pixel apertures per unit area of ​​the second body portion.

[0290] As described above, if the number or total area of ​​the first main sub-pixel apertures 424a-1 per unit area is greater than the number or area of ​​the first auxiliary sub-pixel apertures, when the first mask sheet is pulled, the deformation caused by the second body portion may not be uniform across the entire first mask sheet, or distortion of the first mask sheet may occur.

[0291] To prevent the aforementioned problems, a first correction opening 424c-1 can be formed in the third body portion 422a-3 such that it is the same as the second body portion or the same as the sum of the areas of the first auxiliary sub-pixel openings.

[0292] In such a case, the shape and size of the first correction aperture 424c-1 may be the same as those of the first main sub-pixel aperture 424a-1. However, as described above, the sum of the number or area of the first correction apertures 424c-1 per unit area is smaller than the sum of the number or area of the first main sub-pixel apertures 424a-1.

[0293] On the other hand, when the first main sub-pixel aperture 424a-1 and the first auxiliary sub-pixel aperture have the same shape but different sizes from each other, the third body portion 422a-3 may be formed in the same form as the second body portion or in different forms from each other.

[0294] For example, when the third body portion 422a-3 is the same as the second body portion, the third body portion 422a-3 may include first correction apertures 424c-1 that have the same shape as the first auxiliary sub-pixel aperture and the same size and the same number. At this time, each of the first auxiliary sub-pixel apertures and the first correction apertures 424c-1 may be arranged such that their positions correspond to each other. On the other hand, when the third body portion 422a-3 is different from the second body portion, the third body portion 422a-3 may also be formed in various forms as described in FIGS. 12A, 15 to 17.

[0295] In such a case, even when the second body portion is formed in a different form from the first body portion 422a-1, the deformation of the first mask sheet can be made uniform by arranging the third body portion 422a-3.

[0296] Therefore, by making it possible to predict or making uniform the deformation of the mask sheet used when forming sub-pixels having a shape different from the first display area in the second display area, a display device having a precise pattern can be manufactured.

[0297] Although the above content is not shown in the drawings, it can be similarly applied to a second mask sheet (not shown) and a third mask sheet (not shown).

[0298] Although the present invention has been described with reference to one embodiment illustrated in the drawings, this is merely illustrative, and a person with ordinary skill in the art will understand that a variety of modifications and variations of embodiments are possible therefrom. Therefore, the true scope of technical protection of the present invention must be determined by the technical idea of ​​the claims. [Explanation of Symbols]

[0299] 1 Display device 10 Display Panel 20 components 400 Manufacturing equipment for display devices 410 Chamber 420 Mask Assembly 421 Mask Frame 422 Mask Sheets 423 Support frame 430 1st support part 440 Second support part 450 Evaporation Source 460 Magnetic force generation part 470 Vision Department 480 Pressure Regulating Unit

Claims

1. A mask frame including an opening, A mask sheet placed on the aforementioned mask frame, A support frame is arranged in directions different from the longitudinal direction of the mask sheet and supports the mask sheet, Includes, The aforementioned mask sheet is A first fuselage section provided with a first opening, A second fuselage section is connected to the first fuselage section and has a second opening, It includes a third fuselage section connected to the first fuselage section and having a third opening, The shape of the second opening, the size of the second opening, and the distance between adjacent second openings differ from the shape of the corresponding first opening, the size of the first opening, and the distance between adjacent first openings. The third fuselage section is arranged so as to overlap with the support frame in a plan view. The second and third fuselage sections are arranged in opposite directions relative to an arbitrary straight line passing through the center of the mask sheet, while being parallel to the longitudinal direction of the mask sheet. Mask assembly.

2. The shape of the second opening and the shape of the third opening are identical. The mask assembly according to claim 1.

3. The distance from the outermost edge of the second fuselage to the first side end of the first fuselage and the distance from the outermost edge of the third fuselage to the second side end opposite the first side end of the first fuselage are the same. The mask assembly according to claim 1.

4. The second fuselage section includes a plurality of second fuselage sections, The aforementioned third fuselage section includes a plurality of third fuselage sections, The plurality of second fuselage sections are arranged in a straight line with respect to each other. The plurality of third fuselage sections are arranged in a straight line with respect to each other. The mask assembly according to claim 1.

5. The mask assembly according to claim 4, wherein each of the second and third fuselage sections is arranged in a serpentine shape.

6. The sum of the areas of the second openings in the plurality of second fuselage sections and the sum of the areas of the third openings in the plurality of third fuselage sections are the same. The mask assembly according to claim 4.

7. The parts of the plurality of third fuselage sections and the other parts of the plurality of third fuselage sections are arranged symmetrically with respect to an arbitrary straight line perpendicular to the longitudinal direction of the mask sheet, passing through the center of the mask sheet. The mask assembly according to claim 4.

8. The aforementioned support frame and the second fuselage section are provided in multiple quantities. A passage region through which the vapor-deposited material passes is defined by the support frames adjacent to each other among the plurality of support frames and the side end of the first body portion, or, at the end of the mask sheet, a passage region through which the vapor-deposited material passes is defined by the end support frame among the plurality of support frames, the mask frame and the side end of the first body portion. The mask assembly according to claim 1, wherein each of the second body sections is positioned at the edge of the passage area.

9. The display substrate and mask assembly are placed inside the chamber. This includes depositing a deposition material onto the display substrate by passing it through the mask assembly, The aforementioned mask assembly is A mask frame including an opening, A mask sheet placed on the aforementioned mask frame, The mask sheet includes a support frame arranged in directions different from the longitudinal direction of the mask sheet and supporting the mask sheet, The aforementioned mask sheet is A first fuselage section provided with a first opening, A second fuselage section is connected to the first fuselage section and has a second opening, It includes a third fuselage section connected to the first fuselage section and having a third opening, The shape of the second opening, the size of the second opening, and the distance between adjacent second openings differ from the shape of the corresponding first opening, the size of the first opening, and the distance between adjacent first openings. The third fuselage section is arranged so as to overlap with the support frame in a plan view. The second and third fuselage sections are arranged in opposite directions relative to an arbitrary straight line passing through the center of the mask sheet, while being parallel to the longitudinal direction of the mask sheet. A method for manufacturing a display device.

10. The shape of the second opening and the shape of the third opening are identical. A method for manufacturing a display device according to claim 9.

11. The distance from the outermost edge of the second fuselage to the first side end of the first fuselage and the distance from the outermost edge of the third fuselage to the second side end of the first fuselage opposite to the first side end are the same. A method for manufacturing a display device according to claim 9.

12. The second fuselage section includes a plurality of second fuselage sections, The aforementioned third fuselage section includes a plurality of third fuselage sections, The plurality of second fuselage sections are arranged in a straight line with respect to each other. The plurality of third fuselage sections are arranged in a straight line with respect to each other. A method for manufacturing a display device according to claim 9.

13. Each of the second and third fuselage sections is arranged in a serpentine shape. A method for manufacturing a display device according to claim 12.

14. The sum of the areas of the second openings in the plurality of second fuselage sections and the sum of the areas of the third openings in the plurality of third fuselage sections are the same. A method for manufacturing a display device according to claim 12.

15. The parts of the plurality of third fuselage sections and the other parts of the plurality of third fuselage sections are arranged symmetrically with respect to an arbitrary straight line perpendicular to the longitudinal direction of the mask sheet, passing through the center of the mask sheet. A method for manufacturing a display device according to claim 12.

16. The support frame includes a plurality of support frames, The second fuselage section includes a plurality of second fuselage sections, A passage region through which the vapor-deposited material passes is defined by the support frames adjacent to each other among the plurality of support frames and the side end of the first body portion, or, at the end of the mask sheet, a passage region through which the vapor-deposited material passes is defined by the end support frame among the plurality of support frames, the mask frame and the side end of the first body portion. The method for manufacturing a display device according to claim 9, wherein each of the plurality of second body portions is arranged at the edge of the passage region.

17. Chamber and, A mask assembly is placed inside the chamber, facing the display substrate, The mask assembly is positioned opposite to the deposition source which supplies a deposition material to the display substrate, and the deposition source is positioned opposite the mask assembly. The aforementioned mask assembly is A mask assembly according to any one of claims 1 to 8, Manufacturing equipment for display devices.

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