Display device

Abstract

The invention relates to a display device. The display device includes: a first sub-pixel having a square form; a second sub-pixel disposed to face a first side or a second side of the first sub-pixel and having a rectangular form; and a third sub-pixel disposed to face a first side or a second side of the first sub-pixel spaced apart from the second sub-pixel and having a rectangular form, in which the first side and the second side of the first sub-pixel merge together at an angle, and wherein the first sub-pixel, the second sub-pixel, and the third sub-pixel are configured to emit light of different colors.

Description

[0001] This application is a divisional application of an invention with a filing date of March 4, 2020, application number 202010143252.5 and name “Display device, mask assembly, and apparatus and method for manufacturing a display device”.

[0002] CROSS-REFERENCE TO RELATED APPLICATIONS

[0003] This application claims priority to and the benefit of Korean Patent Application No. 10-2019-0024855 filed on March 4, 2019, in the Korean Intellectual Property Office, the disclosure of which is incorporated herein by reference in its entirety. Technical Field

[0004] Aspects of the present invention relate to a display device, a mask assembly, and an apparatus and method for manufacturing the display device. Background Art

[0005] Electronic devices based on mobility have a wide range of uses. Recently, in addition to small electronic devices such as mobile phones, tablet personal computers (PCs) have been used as mobile electronic devices.

[0006] Mobile electronic devices include display devices for providing visual information such as images or moving images to users in order to support various functions. As components for driving display devices have recently become smaller, the portion of the display device occupying the electronic device has increased, and a structure of a display device that can be bent from a flat state to have a predetermined angle has been developed. Summary of the invention

[0007] When a conventional display device is arranged in a vehicle or the like, glare may be generated due to external light reflection in the display device or the like. In addition, in an apparatus for manufacturing a conventional display device and a method for manufacturing a display device, since the mask sheet is deformed beyond an expected range according to the pattern of the opening portion when extending, the deposited material is deposited on the substrate in a pattern different from the design. One or more embodiments include a display device having a precise pattern while minimizing or substantially reducing external light reflection, an apparatus and a method for manufacturing the display device. However, the embodiments are not limited thereto.

[0008] Additional aspects will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the presented embodiments.

[0009] According to some embodiments, a display device is provided, comprising: a first sub-pixel having a square form; a second sub-pixel positioned to face a first side or a second side of the first sub-pixel and having a rectangular form; and a third sub-pixel positioned to face the first side or the second side of the first sub-pixel, spaced apart from the second sub-pixel and having a rectangular form, wherein the first side and the second side of the first sub-pixel converge at a certain angle, and wherein the first sub-pixel, the second sub-pixel, and the third sub-pixel are configured to emit light of different colors.

[0010] In some embodiments, at least a portion of the second sub-pixel and at least a portion of the third sub-pixel are within a length range of one of the first side and the second side of the first sub-pixel.

[0011] In some embodiments, a short side of the second sub-pixel is parallel to the first side or the second side of the first sub-pixel.

[0012] In some embodiments, a short side of the third sub-pixel is parallel to the first side or the second side of the first sub-pixel.

[0013] In some embodiments, the display device further includes: a plurality of first sub-pixels including the first sub-pixel, and centers of the plurality of first sub-pixels are on a straight line.

[0014] In some embodiments, the display device further includes: a plurality of second sub-pixels including a second sub-pixel; and a plurality of third sub-pixels including a third sub-pixel, wherein centers of some of the plurality of second sub-pixels or the plurality of third sub-pixels are on a straight line in one direction.

[0015] In some embodiments, the display device further includes: a plurality of second subpixels including a second subpixel; and a plurality of third subpixels including a third subpixel, wherein centers of some of the plurality of second subpixels or the plurality of third subpixels are on a serpentine line in one direction.

[0016] In some embodiments, a plurality of first subpixels are arranged in a first direction, and a second subpixel or a third subpixel faces a first side of the first subpixel, a second subpixel or a third subpixel faces a second side of the first subpixel, and the second subpixel and the third subpixel are arranged symmetrically about a straight line connecting the centers of the plurality of first subpixels in the first direction.

[0017] In some embodiments, a first distance that is the shortest distance from an edge of the first subpixel to the second subpixel and a second distance that is the shortest distance from an edge of the first subpixel to the third subpixel are approximately equal to each other.

[0018] In some embodiments, a first distance that is the shortest distance from an edge of the first subpixel to the second subpixel and a second distance that is the shortest distance from an edge of the first subpixel to the third subpixel are different from each other.

[0019] In some embodiments, the display device further includes: a plurality of second sub-pixels including a second sub-pixel; and a plurality of third sub-pixels including a third sub-pixel, wherein the shortest distances from the edge of the first sub-pixel to other second sub-pixels of each second sub-pixel arranged to face the first sub-pixel are different from each other, and wherein the shortest distances from the edge of the first sub-pixel to other third sub-pixels of each third sub-pixel arranged to face the first sub-pixel are different from each other.

[0020] In some embodiments, the plurality of first subpixels are arranged in a first direction, and a long side of the second subpixel or a long side of the third subpixel forms an angle of 45 degrees with respect to a straight line connecting centers of the plurality of first subpixels in the first direction.

[0021] In some embodiments, an area of ​​the first sub-pixel is larger than at least one of an area of ​​the second sub-pixel and an area of ​​the third sub-pixel.

[0022] In some embodiments, an area of ​​the second sub-pixel is different from an area of ​​the third sub-pixel.

[0023] In some embodiments, an outline connecting a portion of an edge of the second sub-pixel and a portion of an edge of the third sub-pixel is a square.

[0024] In some embodiments, a vertex of at least one of the first sub-pixel, the second sub-pixel, and the third sub-pixel is chamfered.

[0025] In some embodiments, the first subpixel is configured to emit blue light, one of the second subpixel and the third subpixel is configured to emit red light, and the other of the second subpixel and the third subpixel is configured to emit green light.

[0026] In some embodiments, the display device further includes: a pixel defining layer defining an area of ​​at least one of the first sub-pixel, the second sub-pixel, and the third sub-pixel; and a spacer protruding from the pixel defining layer.

[0027] According to some embodiments, a display device is provided, comprising: a plurality of first intermediate layers arranged in a square shape and spaced apart from each other; and a plurality of second intermediate layers arranged to face the plurality of first intermediate layers; and a plurality of third intermediate layers spaced apart from the plurality of second intermediate layers and arranged in a rectangular shape and spaced apart from each other, wherein the plurality of second intermediate layers are arranged so that an extension line of a long side of a portion of the plurality of second intermediate layers and an extension line of a long side of another portion of the plurality of second intermediate layers intersect with each other, and wherein the plurality of first intermediate layers, the plurality of second intermediate layers, and the plurality of third intermediate layers include materials configured to emit light of different colors when power is applied to the plurality of first intermediate layers, the plurality of second intermediate layers, and the plurality of third intermediate layers.

[0028] In some embodiments, the plurality of third intermediate layers are disposed such that an extension line of a long side of a portion of the plurality of third intermediate layers and an extension line of a long side of another portion of the plurality of third intermediate layers cross each other.

[0029] In some embodiments, the plurality of second intermediate layers and the plurality of third intermediate layers are parallel to each other.

[0030] In some embodiments, a center of a portion of the plurality of second intermediate layers and a center of some of the plurality of third intermediate layers are on a straight line.

[0031] In some embodiments, in the second intermediate layer and the third intermediate layer facing the corresponding first intermediate layer among the multiple first intermediate layers, the shortest distance from a straight line overlapping with a side of the corresponding first intermediate layer facing the second intermediate layer and the third intermediate layer to the center of the second intermediate layer and the shortest distance from the straight line to the center of the third intermediate layer are approximately equal to each other.

[0032] In some embodiments, in the second intermediate layer and the third intermediate layer facing the corresponding first intermediate layer among the multiple first intermediate layers, the shortest distance from a straight line overlapping with a side of the corresponding first intermediate layer facing the second intermediate layer and the third intermediate layer to the center of the second intermediate layer and the shortest distance from the straight line to the center of the third intermediate layer are different from each other.

[0033] In some embodiments, shortest distances between respective second intermediate layers among the plurality of second intermediate layers and facing corresponding first intermediate layers among the plurality of first intermediate layers and the corresponding first intermediate layers are different from each other.

[0034] According to some embodiments, a mask assembly is provided, comprising: a mask frame; and a plurality of mask sheets sequentially arranged in an extended state along a side of the mask frame above the mask frame, wherein each of the mask sheets comprises a plurality of openings, and wherein some of the plurality of openings are inclined in one direction relative to an extension direction of the mask sheets in the plurality of mask sheets, and some other of the plurality of openings are inclined in a direction different from the direction of some of the plurality of openings.

[0035] In some embodiments, each of the openings is formed at an angle of 45 degrees with respect to an extending direction of the mask sheet.

[0036] In some embodiments, centers of some of the plurality of openings disposed in the extension direction of the mask sheet are on a straight line.

[0037] In some embodiments, centers of some other openings among the plurality of openings arranged in a direction perpendicular to the extending direction of the mask sheet are on the serpentine line.

[0038] In some embodiments, each of the openings is rectangular.

[0039] In some embodiments, the apex of each of the openings is chamfered.

[0040] According to some embodiments, a display device manufacturing apparatus is provided, comprising: a chamber in which a display substrate is placed; a deposition source inside the chamber and supplying deposition material into the chamber; and a mask assembly placed to face the deposition source and allow the deposition material to pass therethrough in a pattern, wherein the mask assembly comprises: a mask frame; and a plurality of mask sheets sequentially arranged along one side of the mask frame in an extended state above the mask frame, wherein each of the mask sheets comprises a plurality of openings, and wherein some of the plurality of openings are inclined in one direction relative to an extension direction of the mask sheets in the plurality of mask sheets, and some other of the plurality of openings are inclined in a direction different from the direction of some of the plurality of openings.

[0041] In some embodiments, each of the openings is formed at an angle of 45 degrees relative to the extension direction.

[0042] In some embodiments, centers of some of the plurality of openings disposed in the extension direction of the mask sheet are on a straight line.

[0043] In some embodiments, centers of some other openings among the plurality of openings arranged in a direction perpendicular to the extending direction of the mask sheet are on the serpentine line.

[0044] In some embodiments, each of the openings is rectangular.

[0045] In some embodiments, the apex of each of the openings is chamfered.

[0046] According to some embodiments, a display device manufacturing apparatus is provided, including: a first deposition unit configured to form a plurality of first intermediate layers above a display substrate; a second deposition unit connected to the first deposition unit and configured to deposit a plurality of second intermediate layers on the display substrate; and a third deposition unit connected to the second deposition unit and configured to deposit a plurality of third intermediate layers on the display substrate, wherein one of the first intermediate layer, the second intermediate layer, and the third intermediate layer is a square, and the remaining two of them are rectangular, and wherein two of the first intermediate layer, the second intermediate layer, and the third intermediate layer are placed to face the remaining one of the first intermediate layer, the second intermediate layer, and the third intermediate layer, and two of the first intermediate layer, the second intermediate layer, and the third intermediate layer are parallel to each other.

[0047] In some embodiments, the first intermediate layer, the second intermediate layer, and the third intermediate layer include different organic emission layers.

[0048] In some embodiments, a portion of the square intermediate layers among the multiple first intermediate layers, the multiple second intermediate layers, or the multiple third intermediate layers is on a straight line in the first direction, and a portion of one of the remaining two rectangular intermediate layers among the multiple first intermediate layers, the multiple second intermediate layers, and the multiple third intermediate layers and a portion of the other of the remaining two rectangular intermediate layers among the multiple first intermediate layers, the multiple second intermediate layers, and the multiple third intermediate layers are inclined in different directions relative to the first direction.

[0049] In some embodiments, centers of some of the remaining two of the plurality of first intermediate layers, the plurality of second intermediate layers, and the plurality of third intermediate layers that are rectangular are on a straight line or on a serpentine line.

[0050] In some embodiments, contour connecting edges of two intermediate layers among the plurality of first intermediate layers, the plurality of second intermediate layers, and the plurality of third intermediate layers that are arranged in a rectangular shape and are adjacent to each other are square.

[0051] In some embodiments, each of the plurality of first intermediate layers forms a first subpixel, each of the plurality of second intermediate layers forms a second subpixel, and each of the plurality of third intermediate layers forms a third subpixel, and an area of ​​one of the remaining two of the plurality of first subpixels, the plurality of second subpixels, and the plurality of third subpixels that are rectangular is different from an area of ​​the other of the remaining two of the plurality of first subpixels, the plurality of second subpixels, and the plurality of third subpixels that are rectangular.

[0052] In some embodiments, at least one vertex of each of the first intermediate layers, each of the second intermediate layers, and each of the third intermediate layers is chamfered.

[0053] In some embodiments, the first deposition unit includes a first mask assembly, the first mask assembly includes a first mask sheet having a plurality of first openings corresponding to each of the first intermediate layers, the second deposition unit includes a second mask assembly, the second mask assembly includes a second mask sheet having a plurality of second openings corresponding to each of the second intermediate layers, and the third deposition unit includes a third mask assembly, the third mask assembly includes a third mask sheet having a plurality of third openings corresponding to each of the third intermediate layers.

[0054] In some embodiments, at least one vertex of each of the first intermediate layers, each of the second intermediate layers, and each of the third intermediate layers is chamfered.

[0055] In some embodiments, two of the first opening, the second opening, and the third opening are provided in a state of being inclined with respect to an extending direction of one of the first mask sheet, the second mask sheet, and the third mask sheet.

[0056] According to some embodiments, a method for manufacturing a display device is provided, comprising: depositing a first deposition material over a display substrate and forming a plurality of first intermediate layers; depositing a second deposition material on the display substrate and forming a plurality of second intermediate layers; and depositing a third deposition material on the display substrate and forming a plurality of third intermediate layers, wherein one of each of the first intermediate layers, each of the second intermediate layers, and each of the third intermediate layers is a square, and the remaining two of them are rectangular, and wherein the remaining two of each of the first intermediate layers, each of the second intermediate layers, and each of the third intermediate layers that are rectangular are arranged to face one side of one of each of the first intermediate layers, each of the second intermediate layers, and each of the third intermediate layers.

[0057] In some embodiments, the centers of some other intermediate layers among the remaining two intermediate layers in the plurality of first intermediate layers, the plurality of second intermediate layers, and the plurality of third intermediate layers that are rectangular are on a straight line in one direction or on a serpentine line.

[0058] In some embodiments, one of the remaining two of the plurality of first intermediate layers, the plurality of second intermediate layers, and the plurality of third intermediate layers that are rectangular is positioned symmetrically with respect to a straight line passing through the center of one of the plurality of first intermediate layers, the plurality of second intermediate layers, and the plurality of third intermediate layers that is square.

[0059] In some embodiments, one of the remaining two of the plurality of first intermediate layers, the plurality of second intermediate layers, and the plurality of third intermediate layers that are rectangular is positioned symmetrically with respect to a straight line passing through the center of one of the plurality of first intermediate layers, the plurality of second intermediate layers, and the plurality of third intermediate layers that is square.

[0060] In some embodiments, each of the multiple first intermediate layers, each of the multiple second intermediate layers, and each of the multiple third intermediate layers that are square in shape have different shortest distances from an edge or an extension line of an edge of one of the square in shape of each of the multiple first intermediate layers, each of the multiple second intermediate layers, and each of the multiple third intermediate layers to each of the remaining two of each of the multiple first intermediate layers, each of the multiple second intermediate layers, and each of the multiple third intermediate layers.

[0061] In some embodiments, each of the multiple first intermediate layers, each of the multiple second intermediate layers, and each of the multiple third intermediate layers that faces the square one of each of the multiple first intermediate layers, each of the multiple second intermediate layers, and each of the multiple third intermediate layers has a shortest distance to one side of the square one of each of the multiple first intermediate layers, each of the multiple second intermediate layers, and each of the multiple third intermediate layers or an extension line of the one side, and the shortest distance has a shortest distance from another of the multiple first intermediate layers, each of the multiple second intermediate layers, and each of the multiple third intermediate layers that faces the square one of each of the multiple first intermediate layers, each of the multiple second intermediate layers, and each of the multiple third intermediate layers to one side of the square one of each of the multiple first intermediate layers, each of the multiple second intermediate layers, and each of the multiple third intermediate layers or an extension line of the one side.

[0062] In some embodiments, the first intermediate layer is square, and the second and third intermediate layers are rectangular.

[0063] In some embodiments, the first deposition material, the second deposition material, and the third deposition material include different organic light emitting materials.

[0064] In some embodiments, at least one of the first intermediate layer, the second intermediate layer, and the third intermediate layer has a vertex that is chamfered.

[0065] In some embodiments, an outline of connecting a portion of an edge of one of the remaining two of the plurality of first intermediate layers, the plurality of second intermediate layers, and the plurality of third intermediate layers that are rectangular and adjacent to each other to a portion of an edge of another of the remaining two of the plurality of first intermediate layers, the plurality of second intermediate layers, and the plurality of third intermediate layers that are rectangular is a square.

[0066] In some embodiments, each of the first intermediate layers forms a first subpixel, each of the second intermediate layers forms a second subpixel, and each of the third intermediate layers forms a third subpixel, and an area of ​​one of the remaining two of the plurality of first subpixels, the plurality of second subpixels, and the plurality of third subpixels that are rectangular is different from an area of ​​the other of the remaining two of the plurality of first subpixels, the plurality of second subpixels, and the plurality of third subpixels that are rectangular. BRIEF DESCRIPTION OF THE DRAWINGS

[0067] These and / or other aspects will become apparent and more readily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0068] Figure 1 is a plan view of a display device according to an embodiment;

[0069] Figure 2 yes Figure 1 A cross-sectional view of a sub-pixel portion of a display device shown in ;

[0070] Figure 3 yes Figure 1 A plan view of a first sub-pixel, a second sub-pixel, and a third sub-pixel of a display device shown in FIG.

[0071] Figure 4 It is used to manufacture Figure 1 A side view of an arrangement of a display device as shown in ;

[0072] Figure 5 yes Figure 4 A cross-sectional view of a first deposition unit shown in ;

[0073] Figure 6 yes Figure 5 A perspective view of a first mask assembly shown in;

[0074] Figure 7 is Figure 4 A plan view of a portion of a second mask sheet used in a second deposition unit shown in FIG.

[0075] Figure 8 is Figure 4 A plan view of a portion of a third mask sheet used in a third deposition unit shown in FIG.

[0076] Fig. 9 is a plan view of a first sub-pixel, a second sub-pixel, and a third sub-pixel of a display device according to another embodiment;

[0077] Fig.10 It is used for deposition Fig. 9A plan view of a portion of a second mask sheet of a second intermediate layer shown in ;

[0078] Fig.11 It is used for deposition Fig. 9 A plan view of a portion of a third mask sheet of a third intermediate layer shown in FIG.

[0079] Fig.12 is a plan view of a first sub-pixel, a second sub-pixel, and a third sub-pixel of a display device according to another embodiment;

[0080] Fig.13 is along Fig.12 A cross-sectional view taken along line BB′ of the display device shown in ;

[0081] Fig.14 It is used for deposition Fig.12 A plan view of a portion of a second mask sheet of a second intermediate layer shown in ;

[0082] Fig.15 It is used for deposition Fig.12 A plan view of a portion of a third mask sheet of a third intermediate layer shown in FIG.

[0083] Fig.16 is a plan view of a first sub-pixel, a second sub-pixel, and a third sub-pixel of a display device according to another embodiment;

[0084] Fig.17 It is used for deposition Fig.16 A plan view of a portion of a first mask sheet of a first intermediate layer shown in ;

[0085] Fig.18 It is used for deposition Fig.16 A plan view of a portion of a second mask sheet of a second intermediate layer shown in ; and

[0086] Fig.19 It is used for deposition Fig.16 0 is a plan view of a portion of a third mask sheet of a third intermediate layer shown in . DETAILED DESCRIPTION

[0087] Reference will now be made in detail to embodiments, examples of which are illustrated in the accompanying drawings, wherein the same reference numerals refer to the same elements throughout. In this regard, the embodiments may have different forms and should not be construed as being limited to the description set forth herein. Therefore, the embodiments are described below only by reference to the accompanying drawings for the purpose of explaining various aspects of this specification. For ease of illustration, the sizes of the components in the accompanying drawings may be exaggerated. In other words, since the sizes and thicknesses of the components in the accompanying drawings are arbitrarily illustrated for ease of illustration, the embodiments below are not limited thereto.

[0088] In addition, the X-axis, Y-axis, and Z-axis are not limited to the three axes on the orthogonal coordinate system, and can be understood broadly. For example, the X-axis, Y-axis, and Z-axis may be perpendicular to each other, or may represent different directions that are not perpendicular to each other.

[0089] When a certain embodiment can be implemented differently, a specific process sequence can be performed in a different order than described. For example, two processes described in succession can be performed substantially simultaneously, or in a reverse order to the described order.

[0090] Figure 1 is a plan view of a display device according to an embodiment. Figure 2 yes Figure 1 A cross-sectional view of a sub-pixel portion of a display device shown in FIG. Figure 3 yes Figure 1 1 is a plan view of a first sub-pixel, a second sub-pixel, and a third sub-pixel of a display device shown in FIG.

[0091] refer to Figures 1 to 3 , the display device 20 may define a display area DA on the substrate 21 and a non-display area NDA with the outline of the display area DA. The light emitting area may be in the display area DA, and the power wiring may be in the non-display area NDA. In addition, the pad area C may be provided in the non-display area NDA.

[0092] In this case, the display area DA may have various suitable shapes. For example, the display area DA may have a shape such as a rectangle, a square, or a circle. In addition, the display area DA may have an irregular shape. However, for ease of description, the case where the display area DA has a rectangular shape will be described in detail later below.

[0093] The display device 20 may include a display substrate D and a thin film encapsulation layer E. The display device 20 may include a substrate 21, a thin film transistor TFT, a passivation film 27, and a pixel electrode 28-1. As another embodiment, the display substrate D may include some of the substrate 21, the thin film transistor TFT, the passivation film 27, the pixel electrode 28-1, and the intermediate layer 28-2.

[0094] The substrate 21 may include a plastic material or a metal material such as stainless steel (SUS) or titanium. The substrate 21 may include polyimide (PI). For ease of description, the case where the substrate 21 is formed of PI will be mainly described in detail later below.

[0095] A thin film transistor TFT may be formed on the substrate 21 , a passivation film 27 may be formed to cover the thin film transistor TFT, and an organic light emitting device (OLED) 28 may be formed on the passivation film 27 .

[0096] Made of organic and / or inorganic compounds (e.g. SiO x (x≥1) or SiN x A buffer layer 22 formed by (x≥1)) may be further formed on the upper surface of the substrate 21 .

[0097] After the active layer 23 provided with a predetermined pattern is formed on the buffer layer 22, the active layer 23 may be covered by the gate insulating layer 24. The active layer 23 includes a source region 23-1 and a drain region 23-3, and further includes a channel region 23-2 between the source region 23-1 and the drain region 23-3.

[0098] The active layer 23 may include various suitable materials. For example, the active layer 23 may include an inorganic semiconductor material such as amorphous silicon or crystalline silicon. As another example, the active layer 23 may include an oxide semiconductor. As another example, the active layer 23 may include an organic semiconductor material. However, for ease of description, the case where the active layer 23 is formed of amorphous silicon will be described in detail later below.

[0099] The active layer 23 may be formed by forming an amorphous silicon film on the buffer layer 22, crystallizing the amorphous silicon film into a polysilicon film, and patterning the polysilicon film. The source region 23-1 and the drain region 23-3 of the active layer 23 may be doped with impurities according to the type of a thin film transistor (TFT) such as a driving TFT or a switching TFT.

[0100] A gate electrode 25 corresponding to the active layer 23 and an interlayer insulating layer 26 covering the gate electrode 25 may be formed on an upper surface of the gate insulating layer 24 .

[0101] After a contact hole (or contact opening) H1 is formed in the interlayer insulating layer 26 and the gate insulating layer 24 , a source electrode 27 - 1 and a drain electrode 27 - 2 may be formed on the interlayer insulating layer 26 to contact the source region 23 - 1 and the drain region 23 - 3 , respectively.

[0102] The passivation film 27 may be formed on the thin film transistor TFT. The pixel electrode 28-1 of the OLED 28 may be formed on the passivation film 27. The pixel electrode 28-1 may contact the drain electrode 27-2 of the thin film transistor TFT through the through hole H2 formed in the passivation film 27. The passivation film 27 may be formed of an inorganic material and / or an organic material to have a single-layer structure or a multi-layer structure. The passivation film 27 may be formed as a planarization film having a flat upper surface regardless of the curved shape of the lower film arranged below the passivation film 27, or may be bent along the curved shape of the lower film. The passivation film 27 may be formed of a transparent insulator to achieve a resonance effect.

[0103] After the pixel electrode 28 - 1 is formed on the passivation film 27 , the pixel defining layer 29 may be formed of an organic material and / or an inorganic material to cover the pixel electrode 28 - 1 and the passivation film 27 and allow the pixel electrode 28 - 1 to be exposed through the pixel defining layer 29 .

[0104] The intermediate layer 28-2 and the counter electrode 28-3 may be formed on at least the pixel electrode 28-1. In another embodiment, the counter electrode 28-3 may be formed on the entire surface of the display substrate D. The counter electrode 28-3 may be formed on the intermediate layer 28-2 and the pixel defining layer 29. Hereinafter, for ease of description, the case where the counter electrode 28-3 is formed on the intermediate layer 28-2 and the pixel defining layer 29 will be mainly described in detail.

[0105] The pixel electrode 28-1 may function as an anode, and the counter electrode 28-3 may function as a cathode. The polarities of the pixel electrode 28-1 and the counter electrode 28-3 may be switched.

[0106] The pixel electrode 28 - 1 and the counter electrode 28 - 3 may be insulated from each other by the intermediate layer 28 - 2 , and voltages of different polarities are applied to the intermediate layer 28 - 2 , so that the organic emission layer emits light.

[0107] The intermediate layer 28-2 may include an organic emission layer. As another selective example, the intermediate layer 28-2 may include an organic emission layer, and may further include at least one of a hole injection layer (HIL), a hole transport layer (HTL), an electron transport layer (ETL), and an electron injection layer (EIL). However, the present embodiment is not limited thereto. The intermediate layer 28-2 may include an organic emission layer, and may further include various suitable functional layers.

[0108] A plurality of intermediate layers 28 - 2 may be provided, and the plurality of intermediate layers 28 - 2 may form the display area DA. The plurality of intermediate layers 28 - 2 may be disposed to be spaced apart from each other in the display area DA.

[0109] A unit pixel may include a plurality of sub-pixels. A plurality of sub-pixels may emit light of various suitable colors. In an embodiment, a sub-pixel may be defined as an area in which light having one color is emitted. As another embodiment, a sub-pixel may be defined as a portion of the pixel electrode 28-1 exposed to the outside through an opening area of ​​the pixel defining layer 29. In this case, adjusting the size of a sub-pixel may be achieved by adjusting the size of the opening area of ​​the pixel defining layer 29 to adjust the area of ​​the pixel electrode 28-1 exposed to the outside. Hereinafter, for ease of description, a sub-pixel will be described in detail with reference to a case in which light having one color is emitted.

[0110] The plurality of sub-pixels may include sub-pixels emitting red light, green light, and blue light. As another embodiment, the plurality of sub-pixels may include sub-pixels emitting red light, green light, blue light, and white light. As another embodiment, the plurality of sub-pixels may include sub-pixels emitting red light, yellow light, and blue light. In this case, the plurality of sub-pixels are not limited to those described above, and may include all cases including sub-pixels emitting different colors. Hereinafter, for ease of explanation, a case in which the plurality of sub-pixels include sub-pixels emitting blue light, red light, and green light will be described in detail.

[0111] The plurality of sub-pixels may include a first sub-pixel F1, a second sub-pixel F2, and a third sub-pixel F3. Here, one of the first sub-pixel F1, the second sub-pixel F2, and the third sub-pixel F3 may be a square, and the other two may be rectangular. Hereinafter, for ease of explanation, a case where the first sub-pixel F1 is a square and the second sub-pixel F2 and the third sub-pixel F3 are rectangular will be mainly described in detail.

[0112] One of the first subpixel F1, the second subpixel F2, and the third subpixel F3 emits blue light, another of the first subpixel F1, the second subpixel F2, and the third subpixel F3 emits red light, and the remaining one of the first subpixel F1, the second subpixel F2, and the third subpixel F3 emits green light. In this case, depending on the shape of each of the first subpixel F1, the second subpixel F2, and the third subpixel F3, one of the blue light, the red light, and the green light may be a square, and the remaining lights may be rectangular. Hereinafter, for ease of explanation, a case in which the first subpixel F1 emits blue light, the second subpixel F2 emits red light, and the third subpixel F3 emits green light will be mainly described in detail.

[0113] The area of ​​each of the first subpixel F1, the second subpixel F2, and the third subpixel F3 may be changed. In this case, since the aperture ratio of each of the subpixels may be adjusted, it is possible to implement the display device 20 that can perform various suitable operations in various forms.

[0114] As described above, the first subpixel F1, the second subpixel F2, and the third subpixel F3 may include a first intermediate layer 28-2A, a second intermediate layer 28-2B, and a third intermediate layer 28-2C, respectively. In this case, the first intermediate layer 28-2A, the second intermediate layer 28-2B, and the third intermediate layer 28-2C may include materials (e.g., organic emission layers) that emit different lights when external power is applied.

[0115] The first intermediate layer 28-2A, the second intermediate layer 28-2B, and the third intermediate layer 28-2C may correspond to the shapes of the first sub-pixel F1, the second sub-pixel F2, and the third sub-pixel F3, respectively. For example, the first intermediate layer 28-2A may have a square shape corresponding to the square shape of the first sub-pixel F1. In addition, the second intermediate layer 28-2B and the third intermediate layer 28-2C may have rectangular shapes corresponding to the rectangular shapes of the second sub-pixel F2 and the third sub-pixel F3, respectively. In this case, the plane area of ​​each of the intermediate layers may be the same as or different from the plane area of ​​each of the sub-pixels. For example, in an embodiment, the plane area of ​​the first intermediate layer 28-2A may be different from the plane area of ​​the first sub-pixel F1, the plane area of ​​the second intermediate layer 28-2B may be the same as the plane area of ​​the second sub-pixel F2, and the plane area of ​​the third intermediate layer 28-2C may be the same as the plane area of ​​the third sub-pixel F3. As another embodiment, the plane area of ​​the second intermediate layer 28-2B may be different from the plane area of ​​the second sub-pixel F2, the plane area of ​​the first intermediate layer 28-2A may be the same as the plane area of ​​the first sub-pixel F1, and the plane area of ​​the third intermediate layer 28-2C may be the same as the plane area of ​​the third sub-pixel F3. As another embodiment, the plane area of ​​the third intermediate layer 28-2C may be different from the plane area of ​​the third sub-pixel F3, the area on the plane of the second intermediate layer 28-2B may be the same as the area on the plane of the second sub-pixel F2, and the area on the plane of the first intermediate layer 28-2A may be the same as the area on the plane of the first sub-pixel F1. As another embodiment, the area on the plane of the first intermediate layer 28-2A may be the same as the area on the plane of the first sub-pixel F1, the area on the plane of the second intermediate layer 28-2B may be different from the area on the plane of the second sub-pixel F2, and the area on the plane of the third intermediate layer 28-2C may be different from the area on the plane of the third sub-pixel F3. As another embodiment, the area on the plane of the second intermediate layer 28-2B may be the same as the area on the plane of the second sub-pixel F2, the area on the plane of the first intermediate layer 28-2A may be different from the area on the plane of the first sub-pixel F1, and the area on the plane of the third intermediate layer 28-2C may be different from the area on the plane of the third sub-pixel F3. As another embodiment, the area on the plane of the third intermediate layer 28-2C may be the same as the area on the plane of the third sub-pixel F3, the area on the plane of the first intermediate layer 28-2A may be different from the area on the plane of the first sub-pixel F1, and the area on the plane of the second intermediate layer 28-2B may be different from the area on the plane of the second sub-pixel F2.As another embodiment, the plane area of ​​the first intermediate layer 28-2A may be different from the plane area of ​​the first sub-pixel F1, the plane area of ​​the second intermediate layer 28-2B may be different from the plane area of ​​the second sub-pixel F2, and the plane area of ​​the third intermediate layer 28-2C may be different from the plane area of ​​the third sub-pixel F3. As another embodiment, the plane area of ​​the first intermediate layer 28-2A may be the same as the plane area of ​​the first sub-pixel F1, the plane area of ​​the second intermediate layer 28-2B may be the same as the plane area of ​​the second sub-pixel F2, and the plane area of ​​the third intermediate layer 28-2C may be the same as the plane area of ​​the third sub-pixel F3. Here, the plane area may be an area on a plane formed by the display area DA of the display device 20. In some examples, the plane area may be an area on a plane on which an image is to be realized when the image is realized. Hereinafter, for ease of explanation, the case where the plane area of ​​each intermediate layer is different from the plane area of ​​each intermediate layer will be mainly described in detail.

[0116] In this case, the plane area of ​​each sub-pixel can be smaller than the plane area of ​​each intermediate layer. Specifically, in this case, since each intermediate layer can be deposited on the display substrate D by deposition while providing sufficient tolerance, light of a precise shape can be emitted from each sub-pixel.

[0117] Since the relationship between the sub-pixels and the relationship between the intermediate layers are the same as or similar to each other, for the convenience of explanation, the following description will mainly focus on the relationship between the sub-pixels.

[0118] The first sub-pixel F1, the second sub-pixel F2, and the third sub-pixel F3 may be plural. The plurality of first sub-pixels F1 may be spaced apart from each other in at least one of the first direction and the second direction. For example, a portion of the plurality of first sub-pixels F1 may be arranged in the first direction (e.g., Figure 1 The sub-pixels F1 and F2 may be spaced apart from each other in one of the X-axis direction and the Y-axis direction, and another portion of the sub-pixels F1 may be arranged in a second direction (eg, Figure 1 Here, the centers of the first subpixels F1 in the first direction among the plurality of first subpixels F1 may be arranged on a straight line, and the straight line may be arranged in the same direction as the first direction. Moreover, the centers of the first subpixels F1 arranged in the second direction among the plurality of first subpixels F1 may be arranged on a straight line, and the straight line may be arranged in the same direction as the second direction.

[0119] The first side S1 and the second side S2 of each of the first sub-pixels F1 may form a certain angle with each other. Specifically, the first side S1 and the second side S2 of the first sub-pixel F1 may form a right angle with each other. Here, the first side S1 and the second side S2 may be respectively arranged in a state of being inclined in at least one different direction relative to the first direction and the second direction. Therefore, each of the first sub-pixels F1 may be arranged in a rhombus form relative to one of the first direction and the second direction, and the two sides S1 and S2 adjacent to each vertex of the first sub-pixel F1 may be about 90 degrees.

[0120] In this case, the second sub-pixel F2 and the third sub-pixel F3 may be arranged near the first side S1 or the second side S2 of the first sub-pixel F1 to face the first sub-pixel F1. In this case, the second sub-pixel F2 and the third sub-pixel F3 may be arranged to be inclined relative to one of the first direction and the second direction. Specifically, the second sub-pixel F2 and the third sub-pixel F3 may be inclined so as to form an angle of about 45 degrees relative to one of the first direction and the second direction. For example, at least one of the short side and the long side of at least one of the second sub-pixel F2 and the third sub-pixel F3 may form an angle of about 45 degrees relative to a straight line connecting the centers of the plurality of first sub-pixels F1 in the first direction.

[0121] The second sub-pixel F2 and the third sub-pixel F3 may have a rectangular shape. Here, the area of ​​at least one of the second sub-pixel F2 and the third sub-pixel F3 may be smaller than the area of ​​the first sub-pixel F1. In addition, at least one of the second sub-pixel F2 and the third sub-pixel F3 facing the first sub-pixel F1 may be arranged to overlap with a side (e.g., the first side S1 or the second side S2) of the first sub-pixel F1 facing the second sub-pixel F2 and the third sub-pixel F3 or an extension line of a side of the first sub-pixel F1. That is, at least a portion of the second sub-pixel F2 and at least a portion of the third sub-pixel F3 adjacent to each other may be arranged within the length range of one of the first side S1 and the second side S2. The short side or long side of at least one of the second sub-pixel F2 and the third sub-pixel F3 facing the first sub-pixel F1 may be parallel to the first side S1 or the second side S2.

[0122] For example, in an embodiment, the extension lines of the short sides of the plurality of second sub-pixels F2 facing the first side S1 and the second side S2, respectively, may intersect with each other, or the extension lines of the long sides of the second sub-pixels F2 facing the first side S1 and the second side S2, respectively, may intersect with each other. As another embodiment, the extension lines of the short sides of the plurality of third sub-pixels F3 facing the first side S1 and the second side S2, respectively, may intersect with each other, or the extension lines of the long sides of the third sub-pixels F3 facing the first side S1 and the second side S2, respectively, may intersect with each other. As another embodiment, the extension lines of the short sides of the second sub-pixels F2 facing the first side S1 and the extension lines of the short sides of the third sub-pixels F3 facing the second side S2 may intersect with each other, or the extension lines of the long sides of the second sub-pixels F2 facing the first side S1 and the extension lines of the long sides of the third sub-pixels F3 facing the second side S2 may intersect with each other. As another embodiment, the extension line of the long side of the second subpixel F2 facing the first side S1 and the extension line of the short side of the third subpixel F3 facing the second side S2 may be parallel to each other, or the extension line of the short side of the second subpixel F2 facing the first side S1 and the extension line of the long side of the third subpixel F3 facing the second side S2 may be parallel to each other.

[0123] A plurality of second sub-pixels F2 may be spaced apart from each other in at least one of the first direction and the second direction. In an embodiment, the centers of some of the plurality of second sub-pixels F2 in the first direction or the second direction may be arranged on a straight line. As another embodiment, the centers of some of the plurality of second sub-pixels F2 arranged in one direction of the first direction or the second direction may be arranged on a straight line, and the centers of another part of the plurality of second sub-pixels F2 arranged in the other direction of the first direction and the second direction may be arranged in a serpentine (e.g., zigzag) shape along the other direction of the first direction and the second direction. Hereinafter, for ease of explanation, a case in which the centers of some of the plurality of second sub-pixels F2 in the first direction may be arranged in a straight line, and the centers of another part of the plurality of second sub-pixels F2 arranged in the second direction may be arranged in a serpentine shape will be mainly described in detail.

[0124] Similar to the second sub-pixel F2, the plurality of third sub-pixels F3 may also be arranged to be spaced apart from each other in at least one of the first direction and the second direction. Here, the plurality of third sub-pixels F3 may also be arranged similarly to the second sub-pixel F2. Hereinafter, for ease of explanation, a case where the centers of a portion of the plurality of third sub-pixels F3 in the first direction among the plurality of third sub-pixels F3 are on a straight line, and the centers of another portion of the plurality of third sub-pixels F3 arranged in the second direction among the plurality of third sub-pixels F3 are on a serpentine line will be mainly described in detail.

[0125] In this case, one of the second sub-pixel F2 and the third sub-pixel F3 facing the first side S1 of the first sub-pixel F1 can be arranged to be symmetrical with the other of the second sub-pixel F2 and the third sub-pixel F3 facing the second side S2 of the first sub-pixel F1 about a straight line parallel to the first direction passing through the centers of two adjacent sub-pixels. For example, the second sub-pixel F2 facing the first side S1 can be symmetrical with the third sub-pixel F3 facing the second side S2 with respect to the straight line. Moreover, the third sub-pixel F3 facing the first side S1 can be symmetrical with the second sub-pixel F2 facing the second side S2 with respect to the straight line. Here, the distance between the centers of the adjacent second sub-pixels F2 can be the same as the distance between the centers of the adjacent third sub-pixels F3. As another embodiment, the second sub-pixel F2 and the third sub-pixel F3 facing the first side S1 can be symmetrical with respect to the second sub-pixel F2 and the third sub-pixel F3 facing the second side S2, respectively. Here, the distance between the centers of one of the pair of second sub-pixels F2 and the pair of third sub-pixels F3 that are symmetrically arranged relative to each other may be smaller than the distance between the centers of the other pair of sub-pixels in the pair of second sub-pixels F2 and the pair of third sub-pixels F3 that are symmetrically arranged relative to each other. In this case, the pair of second sub-pixels F2 adjacent to each other may be arranged between the pair of third sub-pixels F3 adjacent to each other, or the pair of third sub-pixels F3 adjacent to each other may be arranged between the pair of second sub-pixels F2 adjacent to each other. However, hereinafter, for ease of explanation, a case in which the second sub-pixels F2 are arranged to be symmetrical about a straight line connecting the third sub-pixel F3 to the center of the first sub-pixel F1 in the first direction will be mainly described in detail.

[0126] When the second sub-pixel F2 is arranged as described above, the first distance L1 as the shortest distance from the edge of the first sub-pixel F1 to the second sub-pixel F2 and the second distance L2 as the shortest distance from the edge of the first sub-pixel F1 to the third sub-pixel F3 may be approximately equal to each other. In this case, the shortest distance may be measured from the first side S1 or the second side S2 to one side of the second sub-pixel F2 or one side of the third sub-pixel F3 in a direction perpendicular to one of the first side S1 and the second side S2. In some examples, in another embodiment, the shortest distance may be measured from the extension line of the first side S1 or the extension line of the second side S2 to one side of the second sub-pixel F2 or one side of the third sub-pixel F3 in a direction perpendicular to the extension line of one of the first side S1 and the second side S2. However, hereinafter, for the sake of convenience of explanation, the case where the shortest distance is measured from the extension line of the first side S1 or the first side S1 relative to the second sub-pixel F2 and the third sub-pixel F3 facing the first side S1 will be mainly described in detail. Here, as another embodiment other than the above, the shortest distance may be measured by the distance from the center of the first subpixel F1 to the center of the second subpixel F2 or the distance from the center of the first subpixel F1 to the center of the third subpixel F3. As another embodiment, the shortest distance may be measured by the distance from the first side S1 of the first subpixel F1 or an extension line of the first side S1 to the center of the second subpixel F2 or to the center of the third subpixel F3.

[0127] The first distance L1 and the second distance L2 measured at the extension line of the first side S1 or the first side S1 may be approximately equal to each other. Here, the first distance L1 may be a distance from the first side S1 and one of the extension line of the first side S1 to the short side of the second subpixel F2, and the second distance L2 may be a distance from the first side S1 and one of the extension line of the first side S1 to the short side of the third subpixel F3.

[0128] The outline R connecting a portion of the edge of the second sub-pixel F2 facing one side of the first sub-pixel F1 to a portion of the edge of the third sub-pixel F3 may be a square. For example, the outline R may be drawn by connecting the remaining edges of the second sub-pixel F2 and the remaining edges of the third sub-pixel F3 except one side of the second sub-pixel F2 and one side of the third sub-pixel F3 where the second sub-pixel F2 and the third sub-pixel F3 face each other, and by connecting the vertex of the second sub-pixel F2 to the vertex of the third sub-pixel F3 at a portion where the second sub-pixel F2 and the third sub-pixel F3 are spaced apart from each other. The outline R forms a square so that the second sub-pixel F2 and the third sub-pixel F3 may be mirror-disposed at the second side S2 so as to correspond to the disposition of the second sub-pixel F2 and the third sub-pixel F3 facing the first side S1.

[0129] The first intermediate layer 28-2A, the second intermediate layer 28-2B, and the third intermediate layer 28-2C that respectively form the first sub-pixel F1, the second sub-pixel F2, and the third sub-pixel F3 may be formed and arranged to be the same as or similar to the first sub-pixel F1, the second sub-pixel F2, and the third sub-pixel F3, respectively. The centers of the first intermediate layer 28-2A, the second intermediate layer 28-2B, and the third intermediate layer 28-2C may be arranged at positions that are the same as or different from the first sub-pixel F1, the second sub-pixel F2, and the third sub-pixel F3, respectively. The contents of the first sub-pixel F1, the second sub-pixel F2, and the third sub-pixel F3 described above may be applied to the first intermediate layer 28-2A, the second intermediate layer 28-2B, and the third intermediate layer 28-2C, respectively.

[0130] The apparatus for manufacturing a display device to be described later below can form various suitable layers on the display substrate D. For example, the apparatus for manufacturing a display device can form at least one of the intermediate layers 28-2 on the display substrate D. More specifically, the apparatus for manufacturing a display device can form at least one of an organic emission layer, a hole injection layer, a hole transport layer, an electron injection layer, an electron transport layer, and a functional layer in the intermediate layer 28-2. Specifically, when the apparatus for manufacturing a display device forms at least one layer of the intermediate layer 28-2 on the display substrate D, the apparatus for manufacturing a display device can manufacture one layer by a plurality of deposition materials, or can manufacture multiple layers concurrently (e.g., simultaneously). The thin film encapsulation layer E may include multiple inorganic layers, or may include an inorganic layer and an organic layer.

[0131] The organic layer of the thin film encapsulation layer E is formed of a polymer and may include polyethylene terephthalate, polyethylene naphthalate, polycarbonate, polyimide, polyethylene sulfonate, polyoxymethylene, polyarylate, hexamethyldisiloxane (eg, polymethyl methacrylate, polyacrylic acid, etc.), and / or the like.

[0132] The inorganic layer of the thin film encapsulation layer E may be a single layer or a stacked layer including a metal oxide or a metal nitride. In detail, the inorganic layer may include SiN x 、Al 2 O 3 、SiO 2 、TiO 2 and / or the like.

[0133] The uppermost layer of the thin film encapsulation layer E exposed to the outside may be an inorganic layer in order to prevent or substantially prevent moisture from penetrating into the OLED 28 .

[0134] The thin film encapsulation layer E may include at least one sandwich structure in which at least one organic layer is inserted between at least two inorganic layers. As another example, the thin film encapsulation layer E may include at least one sandwich structure in which at least one inorganic layer is inserted between at least two organic layers. As another example, the thin film encapsulation layer E may include a sandwich structure in which at least one organic layer is inserted between at least two inorganic layers and a sandwich structure in which at least one inorganic layer is inserted between at least two organic layers.

[0135] The thin film encapsulation layer E may include a first inorganic layer, a first organic layer, and a second inorganic layer in sequence from an upper portion of the OLED 28 .

[0136] As another example, the thin film encapsulation layer E may include a first inorganic layer, a first organic layer, a second inorganic layer, a second organic layer, and a third inorganic layer in sequence from an upper portion of the OLED 28 .

[0137] As another example, the thin film encapsulation layer E may include a first inorganic layer, a first organic layer, a second inorganic layer, a second organic layer, a third inorganic layer, a third organic layer, and a fourth inorganic layer in sequence from an upper portion of the OLED 28 .

[0138] The area of ​​the first organic layer may be smaller than that of the second inorganic layer. The area of ​​the second inorganic layer may also be smaller than that of the third inorganic layer.

[0139] When a plurality of inorganic layers are provided as described above, the inorganic layers may be deposited so as to directly contact each other in an edge region of a display device, and the organic layers may not be exposed to the outside.

[0140] The capping layer may be disposed between the OLED 28 and the first inorganic layer. The capping layer has a refractive index lower than that of the counter electrode 28-3, and improves light efficiency by reducing a ratio at which light generated in the intermediate layer 28-2 is totally reflected and not emitted to the outside.

[0141] For example, the capping layer may include poly(3,4-ethylenedioxythiophene) (PEDOT), 4,4'-bis[N-(3-methylphenyl)-N-phenylamino]biphenyl (TPD), 4,4',4"-tris[(3-methylphenyl)phenylamino]triphenylamine (m-MTDATA), 1,3,5-tris[N,N-bis(2-methylphenyl)-amino]-benzene (o-MTDAB), 1,3,5-tris[N,N-bis(3-methylphenyl)-amino]-benzene (m-MTDAT), 1,3,5-tris[N,N-bis(4 -methylphenyl)-amino]-benzene (p-MTDAB), 4,4'-bis[N,N-bis(3-methylphenyl)-amino]-diphenylmethane (BPPM), 4,4'-dicarbazolyl-1,1'-biphenyl (CBP), 4,4',4"-tris(N-carbazolyl)triphenylamine (TCTA), 2,2',2"-(1,3,5-phenyltolyl)tris-[1-phenyl-1H-benzimidazole] (TPBI) and 3-(4-biphenyl)-4-phenyl-5-tert-butylphenyl-1,2,4-triazole (TAZ).

[0142] In some examples, the capping layer may include inorganic materials such as zinc oxide, titanium oxide, zirconium oxide, silicon nitride, niobium oxide, tantalum oxide, tin oxide, nickel oxide, indium nitride, and gallium nitride. However, the material capable of forming the capping layer is not limited thereto and may be formed of various suitable materials.

[0143] The capping layer may be on the capping layer. The capping layer protects the OLED 28 from damage that may occur in subsequent processes using plasma, etc. The capping layer may include lithium fluoride (LiF).

[0144] The display device 20 as described above may be fixed to a device for a mobile user such as a vehicle. The display device 20 may be fixed to the device so as to form an angle different from 0 degrees between the viewing direction of the user and the first direction or the second direction. For example, the display device 20 may be arranged so that the viewing direction of the user of the display device 20 forms an angle of approximately 90 degrees with the first direction or the second direction. Hereinafter, for ease of explanation, a case in which the viewing direction of the user of the display device 20 forms an angle of approximately 90 degrees with the first direction will be mainly described in detail.

[0145] In the above case, when the user looks at the display device 20, the inclined portion of the pixel defining layer 29 is not perpendicular to the viewing direction of the user. Therefore, it is possible to prevent or substantially prevent external light from being reflected by the inclined portion of the pixel defining layer 29 and incident on the user's eyes.

[0146] Further, the display device 20 can realize a precise image through each sub-pixel.

[0147] Figure 4 It is used to manufacture Figure 1 A side view of an arrangement of a display device is shown in FIG. Figure 5 yes Figure 4 A cross-sectional view of a first deposition unit shown in FIG. Figure 6 yes Figure 5 A perspective view of a first mask assembly is shown in FIG. Figure 7 is Figure 4 0 is a plan view of a portion of a second mask sheet used in a second deposition unit shown in . Figure 8 is Figure 4 0 is a plan view of a portion of a third mask sheet used in a third deposition unit shown in .

[0148] refer to Figures 4 to 8 , the display device manufacturing apparatus 100 may include equipment for loading a display substrate D, equipment for manufacturing a display substrate D, equipment for forming an intermediate layer on a display substrate D, equipment for forming a thin film encapsulation layer on a display substrate D, equipment for unloading a display substrate D, and the like. In this case, in an embodiment, the display device manufacturing apparatus 100 may be formed by connecting the above-mentioned equipment in an in-line form. As another embodiment, in the display device manufacturing apparatus 100, only a portion of the above-mentioned equipment may be provided in an in-line form, and the other portions may be provided to be spaced apart from the portions in the in-line form. As another embodiment, the display device manufacturing apparatus 100 may also be formed by separately providing equipment. However, hereinafter, for ease of explanation, the case in which the display device manufacturing apparatus 100 includes equipment for loading a display substrate D, equipment for forming an intermediate layer, and equipment for unloading a display substrate D will be mainly described in detail.

[0149] The display device manufacturing apparatus 100 may include a loading unit 110, a first deposition unit 120, a second deposition unit 130, a third deposition unit 140, and an unloading unit 150. In addition, the display device manufacturing apparatus 100 may include a shielding unit 160 disposed between devices connected to each other to cut off or connect a space of each device.

[0150] The first deposition unit 120, the second deposition unit 130, and the third deposition unit 140 may deposit the first intermediate layer, the second intermediate layer, and the third intermediate layer on the display substrate D, respectively, in various suitable orders. For example, the first deposition unit 120 may deposit one of the first intermediate layer, the second intermediate layer, and the third intermediate layer on the display substrate D, the second deposition unit 130 may deposit another of the first intermediate layer, the second intermediate layer, and the third intermediate layer on the display substrate D, and the third deposition unit 140 may deposit the remaining one of the first intermediate layer, the second intermediate layer, and the third intermediate layer on the display substrate D. However, hereinafter, for the sake of convenience of explanation, a case in which the first deposition unit 120 deposits the first intermediate layer on the display substrate D, the second deposition unit 130 deposits the second intermediate layer on the display substrate D, and the third deposition unit 140 deposits the third intermediate layer on the display substrate D will be mainly described in detail. In addition, a case in which the first intermediate layer, the second intermediate layer, and the third intermediate layer have the same structure as the above reference will be mainly described in detail. Figures 1 to 3 The case where the first sub-pixel, the second sub-pixel and the third sub-pixel have the same shape and arrangement is described.

[0151] In the loading unit 110, the display substrate D may be inserted from the outside and temporarily stored. Here, the loading unit 110 may store a plurality of display substrates D or one display substrate D. The loading unit 110 may receive the display substrate D from the outside through a robot arm or a movable shuttle disposed therein, and may supply the display substrate D to the first deposition unit 120. Hereinafter, for convenience of explanation, a case in which the loading unit 110 supports the display substrate D through a robot arm therein and the display substrate D supplied from the robot arm is mounted on the shuttle and supplied from the loading unit 110 to the first deposition unit 120 will be mainly described in detail.

[0152] The first deposition unit 120 may deposit a first intermediate layer on the display substrate D. In this case, there may be one or more first deposition units 120. For example, when one first deposition unit 120 is provided in an embodiment, the first deposition unit 120 may form at least one layer of the first intermediate layer. The first deposition unit 120 may include at least one first deposition source 122 to form one layer of the first intermediate layer on the display substrate D. Specifically, when a plurality of first deposition sources 122 are provided so that the first deposition unit 120 forms a plurality of layers of the first intermediate layer, each of the first deposition sources 122 may be replaceable. Here, the first deposition source 122 may store different deposition materials. As another embodiment, when a plurality of first deposition units 120 are provided, the first deposition unit 120 may deposit a plurality of layers of the first intermediate layer on the display substrate D. Here, the first deposition unit 120 may deposit different deposition materials on the display substrate D. However, hereinafter, for the sake of convenience of explanation, a case in which only one first deposition source 122 is provided and the first deposition source 122 forms only the organic emission layer of the first intermediate layer will be mainly described in detail.

[0153] The first deposition unit 120 may include a first chamber 121 , a first deposition source 122 , a first mask assembly 123 , a first substrate supporting portion 124 , a first mask supporting portion 125 , a first magnetic force generating portion 126 , and a first pressure adjusting portion 127 .

[0154] A space may be formed in the first chamber 121, and one side of the first chamber 121 may be opened to allow the display substrate D to be pulled out or contained. A shielding unit 160 including a gate valve or the like is disposed in the opening portion of the first chamber 121, and may be selectively opened and closed.

[0155] The first deposition source 122 may contain a first deposition material forming at least one layer of the first intermediate layer. The first deposition source 122 may evaporate or sublime the first deposition material by applying energy (eg, heat energy, light energy, vibration energy, etc.).

[0156] The first deposition source 122 as described above may be replaceable. When the contained first deposition material is exhausted, the first deposition source 122 may be replaced with a new first deposition source 122 .

[0157] The first mask assembly 123 may include a first mask frame 123 - 1 , a first mask sheet 123 - 2 , and a first supporting frame 123 - 3 .

[0158] The first mask frame 123-1 may have an opening at the center of the first mask frame 123-1. In this case, the first mask frame 123-1 may be formed in a window frame shape. As another embodiment, the first mask frame 123-1 may have an opening at the center of the first mask frame 123-1, and separate frames that divide the opening into a lattice form may be arranged. Hereinafter, for ease of explanation, a case in which the first mask frame 123-1 has an opening at the center of the first mask frame 123-1 will be mainly described in detail.

[0159] The first mask sheet 123-2 is arranged on one side of the first mask frame 123-1 in a state extending in at least one of the first direction and the second direction, and may be fixed to the first mask frame 123-1 by welding or the like. The first mask frame 123-1 may be formed with a groove for accommodating the first mask sheet 123-2. The first mask sheet 123-2 may be formed in a rectangular shape and may be arranged as one side of the first mask frame 123-1. Further, the first mask sheet 123-2 may be formed in a slit shape.

[0160] There may be a plurality of first mask sheets 123-2. The plurality of first mask sheets 123-2 may be arranged in a line so as to be adjacent to each other in the first direction or the second direction. Specifically, in this case, the long sides of the first mask sheets 123-2 may be arranged to be parallel to the long sides or short sides of the first mask frame 123-1. Hereinafter, for the sake of convenience of explanation, the first mask sheets 123-2 in which the long sides are arranged in a line will be mainly described in detail. Figure 6 The situation in the X-axis direction.

[0161] The first mask sheet 123-2 may have a plurality of first openings 123-4. The plurality of first openings 123-4 may be arranged to be spaced apart from each other in the first direction and the second direction. Specifically, each of the first openings 123-4 may be a rhombus having a vertex arranged in the extension direction of the first mask sheet 123-2. Specifically, each of the first openings 123-4 may be in the form of a square having an angle of approximately 90 degrees formed by two sides adjacent to each vertex. In this case, the centers of some of the plurality of first openings 123-4 may be on a straight line in the extension direction of the first mask sheet 123-2 and in a direction perpendicular to the extension direction of the first mask sheet 123-2. The plurality of first openings 123-4 may be aligned with the reference Figures 1 to 3 In the case where the first opening 123-4 is formed as described above, even if the first mask sheet 123-2 is extended, the extended shape of the first mask sheet 123-2 can be predicted to a certain extent.

[0162] The first support frame 123-3 may be arranged in the first mask frame 123-1 to support the first mask sheet 123-2 and the first mask frame 123-1. The first support frame 123-3 may be arranged in the first mask frame 123-1 in a lattice shape to define a display area of ​​a display device. That is, the first support frame 123-3 may define a plurality of display areas by dividing the central opening of the first mask frame 123-1 into a plurality of areas.

[0163] The first substrate supporting portion 124 may support the display substrate D. The first substrate supporting portion 124 may support the display substrate D by placing the display substrate D on the first substrate supporting portion 124 or by adsorbing or attaching one surface of the display substrate D. For example, the first substrate supporting portion 124 may include a frame, a rod, etc. fixed in the first chamber 121. As another embodiment, the first substrate supporting portion 124 may include a clamp for holding the display substrate D. As another embodiment, the first substrate supporting portion 124 may include an adhesive chuck or an electrostatic chuck. In this case, the first substrate supporting portion 124 may be formed integrally with the first magnetic force generating portion 126. As another embodiment, the first substrate supporting portion 124 may also include a shuttle for transferring the display substrate D from the loading unit 110. However, hereinafter, for ease of explanation, the case where the first substrate supporting portion 124 includes a shuttle will be mainly described in detail.

[0164] The first mask supporting portion 125 may support the first mask assembly 123. Since the first mask supporting portion 125 may be the same as or similar to the first substrate supporting portion 124 described above, a detailed description thereof will not be given here for the sake of convenience of description. Hereinafter, a case in which the first mask supporting portion 125 includes a frame fixed within the first chamber 121 and the first mask assembly 123 is placed and supported on the frame will be mainly described in detail.

[0165] The first magnetic force generating part 126 may be disposed in the first chamber 121 to bring the first mask frame 123 - 1 into close contact with the display substrate D. Here, the first magnetic force generating part 126 may include an electromagnet.

[0166] The first pressure regulating portion 127 may be connected to the first chamber 121 to adjust the pressure inside the first chamber 121. The first pressure regulating portion 127 may include a pipe connected to the first chamber 121 and a pump disposed in the pipe.

[0167] The second deposition unit 130 may deposit a second deposition material on the display substrate D on which the first intermediate layer is formed to form a second intermediate layer. The second deposition unit 130 may be similar to the first deposition unit 120 described above. The second deposition unit 130 may include a second mask sheet 133-2. The second mask sheet 133-2 may be similar to the first mask sheet 123-2. In this case, the second mask sheet 133-2 may include a plurality of second openings 133-4. The plurality of second openings 133-4 may be spaced apart from each other. Some of the plurality of second openings 133-4 may be in an extension direction relative to the second mask sheet 133-2 (e.g., Figure 7 The second openings 133-4 may be in a state where the plurality of second openings 133-4 are tilted in one direction (in the X-axis direction in the middle). Others of the plurality of second openings 133-4 may be in a state where the plurality of second openings 133-4 are tilted in a direction different from the direction of some of the plurality of second openings 133-4 relative to the extension direction of the second mask sheet 133-2. In this case, the distance between two second openings 133-4 adjacent to each other along the extension direction of the second mask sheet 133-2 may be reduced or increased. For example, the plurality of second openings 133-4 may be tilted to have an angle different from 0 degrees relative to the extension direction of the second mask sheet 133-2. Specifically, the plurality of second openings 133-4 may be arranged to form an angle of approximately 45 degrees relative to the extension direction of the second mask sheet 133-2.

[0168] In an embodiment, the center of the second opening 133-4 may form a straight line in one direction. For example, the center of the second opening 133-4 arranged in the extension direction of the second mask sheet 133-2 and in a direction perpendicular to the extension direction of the second mask sheet 133-2 may be on a straight line. In this case, a plurality of second openings 133-4 may be arranged in a plurality of rows and columns. As another embodiment, the centers of some of the plurality of second openings 133-4 may form a straight line, and the centers of the other plurality of second openings 133-4 may not form a straight line. For example, in the plurality of second openings 133-4 as described above, the centers of the second openings 133-4 in the row arranged in the extension direction of the second mask sheet 133-2 may form a straight line. In the plurality of second openings 133-4, the centers of the second openings 133-4 arranged in a direction perpendicular to the extension direction of the second mask sheet 133-2 may form a serpentine shape (or a zigzag shape). However, hereinafter, for convenience of explanation, a case where the centers of some of the plurality of second openings 133-4 form a straight line and the centers of other of the plurality of second openings 133-4 do not form a straight line will be mainly described in detail. The plurality of second openings 133-4 may be rectangular.

[0169] The second mask sheet 133-2 may be fixed to the second mask frame in a state where an extension force is applied as described above. In this case, when the plurality of second openings 133-4 are all inclined in the same direction relative to the extension direction of the second mask sheet 133-2, the deformation of the second mask sheet 133-2 may exceed the predictable range because the degree of deformation between the right and left or between the front and the back of the second mask sheet 133-2 is different from each other. Specifically, in the above case, a portion of the second mask sheet 133-2 is greatly deformed, and another portion of the second mask sheet 133-2 is not deformed or slightly deformed, so that the shape of the second opening 133-4 may be distorted, or the shapes of some of the plurality of second openings 133-4 may be different from the shapes of the other plurality of second openings 133-4. In addition, in the above case, the centers of some of the plurality of second openings 133-4 may not be on a straight line.

[0170] However, as described above, some of the plurality of second openings 133-4 and other of the plurality of second openings 133-4 are formed on the second mask sheet 133-2 by being tilted in different directions relative to the extension direction of the second mask sheet 133-2. Therefore, the degree of deformation of the second mask sheet 133-2 during extension can be uniformly maintained throughout the entire second mask sheet 133-2. Specifically, by tilting the second openings 133-4 adjacent to each other in different directions relative to the extension direction of the second mask sheet 133-2, uniform deformation throughout the second mask sheet 133-2 can be caused.

[0171] The third deposition unit 140 may deposit a third deposition material on the display substrate D on which the first intermediate layer and the second intermediate layer are formed to form a third intermediate layer. Here, the first intermediate layer, the second intermediate layer, and the third intermediate layer may be arranged not to overlap each other on a plane. The third deposition unit 140 may be similar to the first deposition unit 120. The third deposition unit 140 may include a third mask sheet 143-2, and the third mask sheet 143-2 includes a plurality of third openings 143-4. In this case, the third mask sheet 143-2 may be similar to the second mask sheet 133-2, and the third opening 143-4 may be arranged similarly to the second opening 133-4. However, when the second mask sheet 133-2 and the third mask sheet 143-2 are arranged to be stacked on each other, the second mask sheet 133-2 and the third mask sheet 143-2 may be manufactured so that the second opening 133-4 and the third opening 143-4 do not overlap each other.

[0172] The unloading unit 150 temporarily stores the display substrate D having the first, second and third intermediate layers formed thereon, and may unload the display substrate D to the outside or transfer the display substrate D to another device. The unloading unit 150 may include a robot arm or the like for transferring the display substrate D therein.

[0173] As described above, the display substrate D having the first, second and third intermediate layers formed thereon may be manufactured as a display device by forming a counter electrode on the first, second and third intermediate layers and by forming a thin film encapsulation layer E.

[0174] Referring to the operation of the display device manufacturing apparatus 100, the display device manufacturing apparatus 100 can manufacture the first sub-pixel, the second sub-pixel, and the third sub-pixel in various suitable orders as described above. However, hereinafter, for the convenience of explanation, the operation in which the display device manufacturing apparatus 100 sequentially manufactures the first sub-pixel, the second sub-pixel, and the third sub-pixel will be mainly described in detail. Figures 1 to 3 The case of the first sub-pixel, the second sub-pixel and the third sub-pixel shown in FIG.

[0175] After the display substrate D is transferred to the loading unit 110 , the loading unit 110 may transfer the display substrate D to the first deposition unit 120 .

[0176] The first deposition unit 120 may supply the first deposition material to the first deposition source 122 to form a first intermediate layer on the display substrate D. The first deposition material may be deposited on the display substrate D through the first opening 123-4. In this case, the first intermediate layer may have a square shape tilted relative to an extension direction of the first mask sheet 123-2.

[0177] After completing the above processes, the display substrate D is transferred from the first deposition unit 120 to the second deposition unit 130, and then the second deposition material may be deposited on the display substrate D in the second deposition unit 130. The second deposition unit 130 may form a pair of adjacent second intermediate layers on the display substrate D that are inclined in different directions with respect to the extension direction of the second mask sheet 133-2.

[0178] Thereafter, the display substrate D may be transferred from the second deposition unit 130 to the third deposition unit 140. The third deposition unit 140 may supply the third deposition material to the display substrate D, and the third deposition material having passed through the third opening 143-4 may be deposited on the display substrate D. The third deposition unit 140 may form a pair of adjacent third intermediate layers inclined in different directions with respect to an extension direction of the third mask sheet 143-2 on the display substrate D.

[0179] The display substrate D on which the first, second and third intermediate layers are formed may be taken out by the unloading unit 150 or supplied to a device for the next operation. Thereafter, a counter electrode and a thin film encapsulation layer E may be formed on the display substrate D to complete the manufacture of the display device.

[0180] Therefore, according to the display device manufacturing apparatus 100 and the display device manufacturing method, a display device having a precise deposition pattern can be manufactured.

[0181] Furthermore, according to the display device manufacturing apparatus 100 and the display device manufacturing method, an error between a design pattern and an actual deposition pattern that may occur during manufacturing can be minimized or substantially reduced.

[0182] Fig. 9 is a plan view of a first sub-pixel, a second sub-pixel, and a third sub-pixel of a display device according to another embodiment. Fig.10 It is used for deposition Fig. 9 0 is a plan view of a portion of a second mask sheet of a second intermediate layer shown in . Fig.11 It is used for deposition Fig. 9 0 is a plan view of a portion of a third mask sheet of a third intermediate layer shown in .

[0183] refer to Figures 9 to 11 , the display device may define a display area on the substrate and a non-display area with the outline of the display area. A plurality of sub-pixels including a first sub-pixel F1', a second sub-pixel F2', and a third sub-pixel F3' may be arranged in the display area, and the power wiring may be arranged in the non-display area. In addition, the pad portion may be arranged in the non-display area. The display device may include a display substrate, an intermediate layer arranged in the display area, a counter electrode, and a thin film encapsulation layer E.

[0184] The first sub-pixel F1', the second sub-pixel F2', and the third sub-pixel F3' may emit light of different colors. For example, one of the first sub-pixel F1', the second sub-pixel F2', and the third sub-pixel F3' emits blue light, another of the first sub-pixel F1', the second sub-pixel F2', and the third sub-pixel F3' emits red light, and the remaining one of the first sub-pixel F1', the second sub-pixel F2', and the third sub-pixel F3' emits green light.

[0185] One of the first subpixel F1 ′, the second subpixel F2 ′, and the third subpixel F3 ′ may be a square, and the other two may be rectangular.

[0186] Hereinafter, for convenience of explanation, a case where the first subpixel F1 ′ is square and emits red light, the second subpixel F2 ′ is rectangular and emits green light, and the third subpixel F3 ′ is rectangular and emits blue light will be mainly described in detail.

[0187] The first sub-pixel F1' as described above may include a first intermediate layer 28-2A', and the first intermediate layer 28-2A' may correspond to the shape and position of the first sub-pixel F1'. The plane area of ​​the first intermediate layer 28-2A' may be equal to or greater than the plane area of ​​the first sub-pixel F1', and the first sub-pixel F1' may be arranged inside the first intermediate layer 28-2A'.

[0188] The second sub-pixel F2' may include a second intermediate layer 28-2B'. In addition, the second intermediate layer 28-2B' may correspond to the shape and position of the second sub-pixel F2'. The second sub-pixel F2' may be disposed inside the second intermediate layer 28-2B'.

[0189] The third subpixel F3' may include a third intermediate layer 28-2C'. In addition, the third intermediate layer 28-2C' may correspond to the shape and position of the third subpixel F3'. The third subpixel F3' may be disposed inside the third intermediate layer 28-2C'.

[0190] The plane area of ​​the second sub-pixel F2' and the plane area of ​​the third sub-pixel F3' may be different from each other. For example, one of the plane area of ​​the second sub-pixel F2' and the plane area of ​​the third sub-pixel F3' may be smaller than the other of the plane area of ​​the second sub-pixel F2' and the plane area of ​​the third sub-pixel F3'. In an embodiment, the plane area of ​​the second sub-pixel F2' may be smaller than the plane area of ​​the third sub-pixel F3'. As another embodiment, the plane area of ​​the third sub-pixel F3' may be smaller than the plane area of ​​the second sub-pixel F2'. Therefore, it is possible to adjust the aperture ratio of light emitted from each sub-pixel.

[0191] As described above, the adjustment of the area of ​​at least one of the first sub-pixel F1', the second sub-pixel F2', and the third sub-pixel F3' can be performed by adjusting the area in which the pixel defining layer exposes the pixel electrode as described above. Here, the area and shape of the first intermediate layer 28-2A', the second intermediate layer 28-2B', and the third intermediate layer 28-2C' formed by being deposited on the first sub-pixel F1', the second sub-pixel F2', and the third sub-pixel F3', respectively, can correspond to the respective sub-pixels so as to prevent the respective sub-pixels from overlapping each other.

[0192] As described above, the second mask sheet 133-2' and the third mask sheet 143-2' can be used to form the second intermediate layer 28-2B' and the third intermediate layer 28-2C'. The second mask sheet 133-2' may include a plurality of second openings 133-4', and the third mask sheet 143-2' may include a third opening 143-4'. In this case, the area of ​​each of the second openings 133-4' and the area of ​​each of the third openings 143-4' may be different from each other. Specifically, the area of ​​each of the second openings 133-4' and the area of ​​each of the third openings 143-4' may correspond to the area of ​​the second intermediate layer 28-2B' and the area of ​​the third intermediate layer 28-2C', respectively. The relationship between each sub-pixel, each intermediate layer and each opening as described above may be applicable to all embodiments of the present disclosure.

[0193] Two second openings 133-4' adjacent to each other among the plurality of second openings 133-4' may be arranged in a state of being tilted in opposite directions relative to the extension direction of the second mask sheet 133-2'. In addition, two third openings 143-4' adjacent to each other among the plurality of third openings 143-4' may be arranged in a state of being tilted in opposite directions relative to the extension direction of the third mask sheet 143-2'.

[0194] As described above, even when the second mask sheet 133-2' and the third mask sheet 143-2' are extended, the shapes of the second opening 133-4' and the third opening 143-4' remain substantially similar to the initial shapes, and when the positions of the second opening 133-4' and the third opening 143-4' are variable in the initial positions, the positions of the second opening 133-4' and the third opening 143-4' can be moved to a certain extent within a predictable range. Therefore, the pattern can be corrected to a certain extent when the second deposition material and the third deposition material are deposited on the display substrate in the future.

[0195] The display device may be fixed to a device operable by a user, such as a vehicle, etc. The display device may be fixed to the device so as to form a certain angle different from 0 degrees between the viewing direction of the user and the first direction or the second direction. For example, the display device may be arranged so that the viewing direction of the user of the display device forms an angle of about 90 degrees with the first direction or the second direction.

[0196] In the above case, when the user looks at the display device, the inclined portion of the pixel defining layer is not perpendicular to the viewing direction of the user. Therefore, it is possible to prevent or substantially prevent external light from being reflected by the inclined portion of the pixel defining layer and incident on the user's eyes.

[0197] Furthermore, the display device can realize precise images through each sub-pixel.

[0198] The display device can be manufactured by the display device manufacturing apparatus. The display device manufacturing apparatus can be used with Figure 4 and Figure 5 The display device manufacturing apparatus shown in is similarly formed. In this case, the second deposition unit and the third deposition unit are formed by using Figure 6 The first mask assembly 123 shown in FIG. 1 forms the first intermediate layer 28-2A'. The second intermediate layer 28-2B' and the third intermediate layer 28-2C' may be formed on the display substrate by using the second mask sheet 133-2' and the third mask sheet 143-2'.

[0199] According to the display device manufacturing apparatus and the display device manufacturing method, a display device having a precise deposition pattern can be manufactured by minimizing or substantially reducing deformation of each mask sheet.

[0200] Furthermore, according to the display device manufacturing apparatus and the method of manufacturing the display device, an error between a design pattern and an actual deposition pattern that may occur during manufacturing can be minimized or substantially reduced.

[0201] Fig.12 is a plan view of a first sub-pixel, a second sub-pixel, and a third sub-pixel of a display device according to another embodiment. Fig.13 is along Fig.12 A cross-sectional view taken along line BB′ of the display device shown in FIG. Fig.14 It is used for deposition Fig.12 0 is a plan view of a portion of a second mask sheet of a second intermediate layer shown in . Fig.15 It is used for deposition Fig.12 0 is a plan view of a portion of a third mask sheet of a third intermediate layer shown in .

[0202] refer to Figures 12 to 15 , the display device 20" may define a display area on a substrate 21" and a non-display area with the outline of the display area. A plurality of sub-pixels including a first sub-pixel F1", a second sub-pixel F2", and a third sub-pixel F3" may be arranged in the display area, and power wiring may be arranged in the non-display area. In addition, a pad portion may be arranged in the non-display area. The display device may include a display substrate D", an intermediate layer arranged in the display area, an electrode 28-3", and a thin film encapsulation layer E".

[0203] The display device 20" may include a substrate 21", a buffer layer 22", an active layer 23", a gate insulating layer 24", a gate electrode 25", an interlayer insulating layer 26", a passivation film 27", a source electrode 27-1", a drain electrode 27-2", an organic light-emitting device 28", and a thin film encapsulation layer E". The active layer 23 includes a source region 23-1" and a drain region 23-3", and further includes a channel region 23-2" between the source region 23-1" and the drain region 23-3". The organic light-emitting device 28" includes a pixel electrode 28-1", an intermediate layer and a counter electrode 28-3". In this case, the substrate 21", the buffer layer 22", the active layer 23", the gate insulating layer 24", the gate electrode 25", the interlayer insulating layer 26", the passivation film 27", the source electrode 27-1", the drain electrode 27-2", the organic light-emitting device 28", and the thin film encapsulation layer E" are the same as above. Figure 1 , and therefore, their detailed description will not be given here.

[0204] The first subpixel F1", the second subpixel F2", and the third subpixel F3" can emit light of different colors. For example, one of the first subpixel F1", the second subpixel F2", and the third subpixel F3" emits blue light, another of the first subpixel F1", the second subpixel F2", and the third subpixel F3" emits red light, and the remaining one of the first subpixel F1", the second subpixel F2", and the third subpixel F3" emits green light.

[0205] One of the first subpixel F1 ″, the second subpixel F2 ″, and the third subpixel F3 ″ may be a square, and the other two may be rectangular.

[0206] Hereinafter, for convenience of explanation, a case where the first subpixel F1 ″ is square and emits red light, the second subpixel F2 ″ is rectangular and emits green light, and the third subpixel F3 ″ is rectangular and emits blue light will be mainly described in detail.

[0207] The first subpixel F1" as described above may include a first intermediate layer 28-2A", and the first intermediate layer 28-2A" may correspond to the shape and position of the first subpixel F1". The planar area of ​​the first intermediate layer 28-2A" may be equal to or greater than the planar area of ​​the first subpixel F1", and the first subpixel F1" may be arranged inside the first intermediate layer 28-2A".

[0208] In a plan view, the second sub-pixel F2" may be disposed inside the second intermediate layer 28-2B". In addition, the second intermediate layer 28-2B" may correspond to the shape and position of the second sub-pixel F2".

[0209] In a plan view, the third subpixel F3 ″ may be disposed inside the third intermediate layer 28 - 2C ″. In addition, the third intermediate layer 28 - 2C ″ may correspond to the shape and position of the third subpixel F3 ″.

[0210] A plane area of ​​the second subpixel F2 ″ and a plane area of ​​the third subpixel F3 ″ may be different from each other.

[0211] In an embodiment, the planar areas of the second sub-pixels F2" may be different from each other. For example, a portion of the plurality of second sub-pixels F2" may have an area different from another portion of the plurality of second sub-pixels F2". Specifically, the planar areas of a pair of second sub-pixels F2" that are adjacent to each other while facing one first sub-pixel F1" may be different from each other.

[0212] In addition, the planar areas of the plurality of third sub-pixels F3" may also be different from each other. For example, some of the plurality of third sub-pixels F3" may have an area different from that of some other third sub-pixels F3" among the plurality of third sub-pixels F3". Specifically, the planar areas of a pair of third sub-pixels F3" that are adjacent to each other while facing a first sub-pixel F1" may be different from each other.

[0213] In the above case, the distance between one of the first side S1" and the second side S2" of the first subpixel F1" and the second subpixel F2" facing one of the first side S1" and the second side S2" and the distance between an extension line of one of the first side S1" and the second side S2" of the first subpixel F1" and the third subpixel F3" facing one of the first side S1" and the second side S2" may be different from each other.

[0214] For example, in the second subpixel F2” and the third subpixel F3” facing the first side S1” or the extension line of the first side S1”, the first distance L1”, which is the shortest distance from the first side S1” or the extension line of the first side S1” to the short side (or one side or center) of the second subpixel F2”, and the second distance L2”, which is the shortest distance from the first side S1” or the extension line of the first side S1” to the short side (or one side or center) of the third subpixel F3”, may be different from each other. Specifically, the first distance L1” may be longer than the second distance L2”.

[0215] In the second subpixel F2” and the third subpixel F3” facing the second side S2” or the extension line of the second side S2”, the third distance L3”, which is the shortest distance from the second side S2” or the extension line of the second side S2” to the short side (or one side or center) of the second subpixel F2”, and the fourth distance L4”, which is the shortest distance from the second side S2” or the extension line of the second side S2” to the short side (or one side or center) of the third subpixel F3”, may be different from each other. Specifically, the third distance L3” may be shorter than the fourth distance L4”.

[0216] As another embodiment, the planar areas of a plurality of second sub-pixels F2" may be approximately equal to one another, and the planar areas of a plurality of third sub-pixels F3" may be approximately equal to one another. In this case, the planar area of ​​each of the second sub-pixels F2" may be greater than or less than the planar area of ​​each of the third sub-pixels F3". In the above case, in an embodiment, the pair of third sub-pixels F3" may be arranged to face the first side S1" and the second side S2", respectively, between a pair of second sub-pixels F2" arranged to face the first side S1" and the second side S2", respectively. In this case, the shortest distance from the first side S1" or the second side S2" to the short side (or one side or center) of the second sub-pixel F2" may be less than the shortest distance from the first side S1" or the second side S2" to the short side (or one side or center) of the third sub-pixel F3". In addition, as another embodiment, the pair of second sub-pixels F2" can be arranged to face the first side S1" and the second side S2", respectively, between the pair of third sub-pixels F3" arranged to face the first side S1" and the second side S2", respectively. In this case, the shortest distance from the first side S1" or the second side S2" to the short side (or one side or center) of the second sub-pixel F2" can be greater than the shortest distance from the first side S1" or the second side S2" to the short side (or one side or center) of the third sub-pixel F3".

[0217] Hereinafter, for the sake of convenience of explanation, the situation in which the plane area of ​​a part of the multiple second sub-pixels F2" is different from the plane area of ​​another part of the multiple second sub-pixels F2", the plane area of ​​a part of the multiple third sub-pixels F3" is different from the plane area of ​​another part of the multiple third sub-pixels F3", the first distance L1" and the second distance L2" are different from each other, and the third distance L3" and the fourth distance L4" are different from each other will be mainly described in detail.

[0218] As described above, a spacer P" may be arranged between each of the sub-pixels. The spacer P" may be arranged on the pixel defining layer 29" or formed integrally with the pixel defining layer 29". The spacer P" may have various suitable shapes. For example, a plurality of spacers P" may be formed in the form of protrusions and may be spaced apart from each other on the pixel defining layer 29". As another embodiment, a spacer P" may be provided in the space between adjacent sub-pixels. However, the spacer P" is not limited thereto. Each mask sheet enters the interior of the opening of the pixel defining layer 29" or is in close contact with the pixel defining layer 29". Therefore, when the deposition material is deposited on the display substrate D", it is possible to prevent or substantially prevent the occurrence of defects caused when each mask component damages or destroys a portion of the display substrate D". Specifically, when each mask component is brought into close contact with the substrate 21", the spacer P" may maintain a gap between the end of the opening of the pixel defining layer 29" and each mask component. Hereinafter, for convenience of explanation, a case where the spacer P" is disposed between the second subpixel F2" and the third subpixel F3" facing one first subpixel F1" and between a plurality of first subpixels F1" facing each other will be mainly described in detail.

[0219] The insulator P" may be formed integrally with the pixel defining layer 29" and concurrently (e.g., simultaneously), or may be formed separately on the pixel defining layer 29" after the pixel defining layer 29" is formed. In this case, the insulator P" may use a material that is the same as or different from that of the pixel defining layer 29". Hereinafter, for ease of explanation, the case in which the insulator P" uses the same material as that of the pixel defining layer 29" will be mainly described in detail.

[0220] In order to manufacture the first sub-pixel F1 ″, the second sub-pixel F2 ″, and the third sub-pixel F3 ″ as described above, the display substrate D″ may be supplied to the reference Figure 4 and Figure 5 A display device manufacturing apparatus is described.

[0221] In this case, the first deposition unit may supply the first deposition material to the display substrate D" to form the first intermediate layer 28-2A", the second deposition unit may supply the second deposition material to the display substrate D" to form the second intermediate layer 28-2B", and the third deposition unit may supply the third deposition material to the display substrate D" to form the third intermediate layer 28-2C".

[0222] In this case, the first mask sheet used in the first deposition unit may include a first opening formed to correspond to the shape of the first sub-pixel F1". In this case, a planar area of ​​the first opening may be equal to or greater than a planar area of ​​the corresponding first sub-pixel F1". In addition, a planar area of ​​one of the first openings may be equal to or greater than a planar area of ​​a first intermediate layer 28-2A" formed by depositing the first deposition material having passed through the first opening on the display substrate D". The shapes of the first opening, the first intermediate layer 28-2A", and the first sub-pixel F1" that correspond to each other may be approximately equal to each other in a square shape.

[0223] The second opening 133-4" of the second mask sheet 133-2" used in the second deposition unit may be formed to correspond to the shape of the second sub-pixel F2". The second opening 133-4" may be set in the same manner as the setting of the second sub-pixel F2". In this case, a planar area of ​​the second opening 133-4" may be equal to or greater than a planar area of ​​the second sub-pixel F2", and may be equal to or greater than a planar area of ​​the second intermediate layer 28-2B" formed by depositing the second deposition material on the display substrate D".

[0224] The third opening 143-4" of the third mask sheet 143-2" used in the third deposition unit is also formed to correspond to the shape of the third sub-pixel F3", and the planar area of ​​the third opening 143-4" may be equal to or greater than the planar area of ​​the third sub-pixel F3". In addition, the planar area of ​​the third opening 143-4" may be equal to or greater than the planar area of ​​the third intermediate layer 28-2C".

[0225] Here, the relationship between the first sub-pixel F1", the second sub-pixel F2" and the third sub-pixel F3" can be as follows: Figures 1 to 3 The relationship between the first intermediate layer 28-2A", the second intermediate layer 28-2B", and the third intermediate layer 28-2C" may be the same as the relationship between the first sub-pixel F1", the second sub-pixel F2", and the third sub-pixel F3".

[0226] For example, the center of a portion of the plurality of second sub-pixels F2" is on a straight line in one direction, and the center of another portion of the plurality of second sub-pixels F2" may be on a serpentine line in another direction. In addition, the center of a portion of the plurality of third sub-pixels F3" is on a straight line in one direction, and the center of another portion of the plurality of third sub-pixels F3" may be on a serpentine line in another direction. The centers of the plurality of first sub-pixels F1" may be on a straight line in a direction different from the one direction.

[0227] In addition, the second subpixel F2" and the third subpixel F3" facing the same first subpixel F1" can be inclined in opposite directions relative to the extension direction of the second mask sheet 133-2" and the extension direction of the third mask sheet 143-2". Specifically, in this case, the second subpixels F2" adjacent to each other can form an angle of approximately 45 degrees in opposite directions relative to the extension direction of the second mask sheet 133-2". Moreover, the second openings 133-4" formed in the second mask sheet 133-2" and adjacent to each other can form an angle of approximately 45 degrees relative to the extension direction of the second mask sheet 133-2". The third subpixels F3" adjacent to each other can form an angle of approximately 45 degrees in opposite directions relative to the extension direction of the third mask sheet 143-2". Moreover, the third openings 143-4" formed in the third mask sheet 143-2" and adjacent to each other may form an angle of approximately 45 degrees relative to the extension direction of the third mask sheet 143-2". The second intermediate layer 28-2B" and the third intermediate layer 28-2C" may be arranged on the display substrate D" at positions corresponding to the second opening 133-4" and the third opening 143-4", respectively.

[0228] The display device 20" may be fixed to a device for a mobile user, such as a vehicle. The display device 20" may be fixed to the device so as to form an angle different from 0 degrees between the viewing direction of the user and the first direction or the second direction. For example, the display device 20" may be configured so that the viewing direction of the user of the display device 20" forms an angle of approximately 90 degrees with the first direction or the second direction.

[0229] In the above case, when the user looks at the display device 20", the inclined portion of the pixel defining layer 29" is not perpendicular to the user's viewing direction. Therefore, external light can be prevented or substantially prevented from being reflected through the inclined portion of the pixel defining layer 29" and incident on the user's eyes.

[0230] Furthermore, the display device 20 ″ can realize accurate images through each sub-pixel.

[0231] According to the display device manufacturing apparatus and the display device manufacturing method, it is possible to manufacture the display device 20" having a precise deposition pattern.

[0232] Furthermore, according to the display device manufacturing apparatus and the method of manufacturing the display device, an error between a design pattern and an actual deposition pattern that may occur during manufacturing can be minimized or substantially reduced.

[0233] Fig.16 is a plan view of a first sub-pixel, a second sub-pixel, and a third sub-pixel of a display device according to another embodiment. Fig.17 It is used for deposition Fig.16A plan view of a portion of a first mask sheet of a first intermediate layer is shown in FIG. Fig.18 It is used for deposition Fig.16 0 is a plan view of a portion of a second mask sheet of a second intermediate layer shown in . Fig.19 It is used for deposition Fig.16 0 is a plan view of a portion of a third mask sheet of a third intermediate layer shown in .

[0234] refer to Figures 16 to 19 , the display device may define a display area on a substrate and a non-display area with the outline of the display area. A plurality of sub-pixels including a first sub-pixel F1"', a second sub-pixel F2"' and a third sub-pixel F3"' may be arranged in the display area, and power wiring may be arranged in the non-display area. In addition, a pad portion may be arranged in the non-display area. The display device may include a display substrate, an intermediate layer arranged in the display area, a counter electrode and a thin film encapsulation layer E"'.

[0235] The first subpixel F1'", the second subpixel F2'", and the third subpixel F3'" can emit light of different colors. For example, one of the first subpixel F1'", the second subpixel F2'", and the third subpixel F3'" emits blue light, another of the first subpixel F1'", the second subpixel F2'", and the third subpixel F3'" emits red light, and the remaining one of the first subpixel F1'", the second subpixel F2'", and the third subpixel F3'" emits green light.

[0236] One of the first subpixel F1 ′″, the second subpixel F2 ′″, and the third subpixel F3 ′″ may be a square, and the other two may be rectangular.

[0237] Hereinafter, for convenience of explanation, the case where the first subpixel F1'" is square and emits red light, the second subpixel F2'" is rectangular and emits green light, and the third subpixel F3'" is rectangular and emits blue light will be mainly described in detail.

[0238] The first subpixel F1''' as described above may include a first intermediate layer 28-2A''', and the first intermediate layer 28-2A''' may correspond to the shape and position of the first subpixel F1'''. The plane area of ​​the first intermediate layer 28-2A''' may be greater than the plane area of ​​the first subpixel F1''', and the first subpixel F1''' may be arranged inside the first intermediate layer 28-2A'''.

[0239] The second subpixel F2'" may include a second intermediate layer 28-2B'" In addition, the second intermediate layer 28-2B'" may correspond to the shape and position of the second subpixel F2'" The second subpixel F2'" may be disposed inside the second intermediate layer 28-2B'" In addition, the second intermediate layer 28-2B'" may correspond to the shape and position of the second subpixel F2'"

[0240] The third subpixel F3'" may include a third intermediate layer 28-2C'" . In addition, the third intermediate layer 28-2C'" may correspond to the shape and position of the third subpixel F3'" . The third subpixel F3'" may be disposed inside the third intermediate layer 28-2C'" .

[0241] The first sub-pixel F1'', the second sub-pixel F2'' and the third sub-pixel F3'' may be applied in the same or similar manner. Figures 1 to 3 , Fig. 9 or Fig.12 The structure shown in Figures 1 to 3 , Fig. 9 or Fig.12 are configured the same or similarly to those described in .

[0242] The first sub-pixel F1'", the second sub-pixel F2'", and the third sub-pixel F3'" may have chamfered edges. For example, in an embodiment, one of the vertices of the first sub-pixel F1'", the vertices of the second sub-pixel F2'", and the vertices of the third sub-pixel F3'" may be chamfered, and the remaining two of them may not be chamfered. As another embodiment, two of the vertices of the first sub-pixel F1'", the vertices of the second sub-pixel F2'", and the vertices of the third sub-pixel F3'" may be chamfered, and the remaining one of them may not be chamfered. As another embodiment, all of the vertices of the first sub-pixel F1'", the vertices of the second sub-pixel F2'", and the vertices of the third sub-pixel F3'" may be chamfered. Hereinafter, for the sake of convenience of explanation, the case in which all of the vertices of the first sub-pixel F1'", the vertices of the second sub-pixel F2'", and the vertices of the third sub-pixel F3'" are chamfered will be mainly described in detail.

[0243] In order to form the vertices of the first sub-pixel F1"', the vertices of the second sub-pixel F2"', and the vertices of the third sub-pixel F3"' that are chamfered as described above, the vertices (or corners) of the first opening 123-4"' of the first mask sheet 123-2"', the vertices (or corners) of the second opening 133-4"' of the second mask sheet 133-2"', and the vertices (or corners) of the third opening 143-4"' of the third mask sheet 143-2"' may be chamfered. In this case, the first opening 123-4"', the second opening 133-4"', and the third opening 143-4"' may be the same as or similar to an octagonal shape. Specifically, the chamfered portions in the first opening 123-4"', the second opening 133-4"', and the third opening 143-4"' may be rounded, or may be formed into a straight line shape.

[0244] As described above, when the vertices of the first opening 123-4'', the second opening 133-4'', and the third opening 143-4'' are chamfered, when the first mask sheet 123-2'', the second mask sheet 133-2'', and the third mask sheet 143-2'' are extended, stress may not be concentrated on the vertices of the first opening 123-4'', the second opening 133-4'', and the third opening 143-4''. Therefore, when the first mask sheet 123-2'', the second mask sheet 133-2'', and the third mask sheet 143 -2"' extends, damage to the first mask sheet 123-2"', the second mask sheet 133-2"' and the third mask sheet 143-2"' can be prevented or substantially reduced. In addition, since the first deposition material, the second deposition material and the third deposition material are not blocked together at the apex of the first opening 123-4"', the apex of the second opening 133-4"' and the apex of the third opening 143-4"', a first intermediate layer 28-2A"', a second intermediate layer 28-2B"' and a third intermediate layer 28-2C"' having the correct shape can be formed.

[0245] can be achieved by Figure 4 and Figure 5 The display device manufacturing apparatus shown in or a display device manufacturing apparatus of a similar type is used to manufacture the display device.

[0246] In this case, the first deposition unit may supply the first deposition material to the display substrate to form the first intermediate layer 28-2A"', the second deposition unit may supply the second deposition material to the display substrate to form the second intermediate layer 28-2B"', and the third deposition unit may supply the third deposition material to the display substrate to form the third intermediate layer 28-2C"'.

[0247] In this case, the first mask sheet 123-2'' used in the first deposition unit may include a first opening 123-4''' formed to correspond to the shape of the first sub-pixel F1'''. In this case, the planar area of ​​the first opening 123-4''' may be equal to or greater than the planar area of ​​the corresponding first sub-pixel F1'''. Moreover, the planar area of ​​the first opening 123-4''' may be equal to or greater than the planar area of ​​the first intermediate layer 28-2A''' formed by depositing the first deposition material having passed through the first opening 123-4''' on the display substrate. The shapes of the first opening 123-4''', the first intermediate layer 28-2A''', and the first sub-pixel F1''' that correspond to each other may be approximately equal to each other and be square shapes.

[0248] The second opening 133-4''' of the second mask sheet 133-2''' used in the second deposition unit may be formed to correspond to the shape of the second sub-pixel F2'''. The second opening 133-4'''' may be disposed in the same manner as the second sub-pixel F2''''. In this case, a planar area of ​​the second opening 133-4'''' may be equal to or greater than a planar area of ​​the second sub-pixel F2''', and may be equal to or greater than a planar area of ​​the second intermediate layer 28-2B'''' formed by depositing the second deposition material on the display substrate.

[0249] The third opening 143-4''' of the third mask sheet 143-2''' used in the third deposition unit is also formed to correspond to the shape of the third sub-pixel F3''', and the plane area of ​​the third opening 143-4''' may be equal to or greater than the plane area of ​​the third sub-pixel F3'''. In addition, the plane area of ​​the third opening 143-4''' may be equal to or greater than the plane area of ​​the third intermediate layer 28-2C'''.

[0250] Here, the first sub-pixel F1'', the second sub-pixel F2'' and the third sub-pixel F3'' may be connected to Figures 1 to 3 , Fig. 9 and Fig.12 The relationship between the first intermediate layer 28-2A''', the second intermediate layer 28-2B''', and the third intermediate layer 28-2C''' may be the same as the relationship between the first sub-pixel F1''', the second sub-pixel F2''', and the third sub-pixel F3'''.

[0251] For example, the center of a portion of the plurality of second sub-pixels F2'" is on a straight line in one direction, and the center of another portion of the plurality of second sub-pixels F2'" may be on a serpentine line in another direction. In addition, the center of a portion of the plurality of third sub-pixels F3'" is on a straight line, and the center of another portion of the plurality of third sub-pixels F3'" may be on a serpentine line in another direction. The centers of the plurality of first sub-pixels F1'" may be on a straight line in a direction different from the one direction.

[0252] In addition, the second subpixel F2"' and the third subpixel F3"' facing the same first subpixel F1"' can be inclined in opposite directions relative to the extension direction of the second mask sheet 133-2"' and the extension direction of the third mask sheet 143-2"'. Specifically, in this case, the second subpixels F2"' adjacent to each other can form an angle of approximately 45 degrees in the opposite direction relative to the extension direction of the second mask sheet 133-2"'. Moreover, the second openings 133-4"' formed in the second mask sheet 133-2"' and adjacent to each other can form an angle of approximately 45 degrees relative to the extension direction of the second mask sheet 133-2"'. The third subpixels F3"' adjacent to each other can form an angle of approximately 45 degrees in the opposite direction relative to the extension direction of the third mask sheet 143-2"'. Moreover, the third openings 143-4'' formed in the third mask sheet 143-2'' and adjacent to each other may form an angle of approximately 45 degrees relative to the extension direction of the third mask sheet 143-2''. The second intermediate layer 28-2B''' and the third intermediate layer 28-2C''' may be arranged on the display substrate at positions corresponding to the second opening 133-4'' and the third opening 143-4'', respectively.

[0253] The display device may be fixed to a device operable by a user, such as a vehicle, etc. The display device may be fixed to the device so as to form a certain angle different from 0 degrees between the viewing direction of the user and the first direction or the second direction. For example, the display device may be arranged so that the viewing direction of the user of the display device forms an angle of about 90 degrees with the first direction or the second direction.

[0254] In the above case, when the user looks at the display device, the inclined portion of the pixel defining layer is not perpendicular to the viewing direction of the user. Therefore, it is possible to prevent or substantially prevent external light from being reflected by the inclined portion of the pixel defining layer and incident on the user's eyes.

[0255] Furthermore, the display device can realize precise images through each sub-pixel.

[0256] According to the display device manufacturing apparatus and the display device manufacturing method, a display device having a precise deposition pattern can be manufactured.

[0257] Furthermore, according to the display device manufacturing apparatus and the display device manufacturing method, an error between a design pattern and an actual deposition pattern that may occur during manufacturing can be minimized or substantially reduced.

[0258] The apparatus and method of manufacturing a display device according to the embodiments may form various layers on a display substrate through chambers provided in an in-line form.

[0259] Further, the apparatus and method of manufacturing a display device according to the embodiments may simplify the process and reduce the process time.

[0260] An expression using the singular form includes the plural expression unless it has an obviously different meaning in the context.

[0261] It will be understood that although the terms "first", "second", "third", etc. may be used herein to describe various elements, components, regions, layers and / or portions, these elements, components, regions, layers and / or portions should not be limited by these terms. These terms are used to distinguish one element, component, region, layer or portion from another element, component, region, layer or portion. Therefore, the first element, component, region, layer or portion discussed above may be referred to as a second element, component, region, layer or portion without departing from the spirit and scope of the present inventive concept.

[0262] For ease of description purposes, spatially relative terms such as "below", "below", "lower", "beneath", "above", "above", etc. may be used herein to describe the relationship of one element or feature relative to another (some) element or feature as shown in the figure. It will be understood that spatially relative terms are intended to include different orientations of the device in use or operation other than the orientation depicted in the drawings. For example, if the device in the drawings is turned over, the elements described as being "below" or "below" or "below" other elements or features will be oriented to be "above" other elements or features. Therefore, the example terms "below" and "below" may include both above and below. The device may be oriented in other ways (e.g., rotated 90 degrees or in other orientations), and the spatially relative descriptors used herein should be interpreted accordingly. In addition, it will also be understood that when a layer is referred to as being "between" two layers, it may be the only layer between the two layers, or one or more intermediate layers may also be present.

[0263] The terms used herein are for the purpose of describing specific embodiments, and are not intended to limit the inventive concept. As used herein, the "one" in the singular is intended to also include the plural form, unless the context clearly indicates otherwise. It will be further understood that when used in this specification, the terms "include", "contain", "contain" and / or "comprise" specify the presence of stated features, integers, steps, operations, elements and / or parts, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, parts and / or their combinations. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0264] For the purpose of the present disclosure, “at least one of X, Y, and Z” and “at least one selected from the group consisting of X, Y, and Z” may be interpreted as only X, only Y, only Z, or any combination of two or more of X, Y, and Z, such as, for example, XYZ, XYY, YZ, and ZZ.

[0265] Further, when describing embodiments of the present inventive concept, the use of “may” refers to “one or more embodiments of the present inventive concept.” Also, the term “exemplary” means an example or illustration.

[0266] It will be understood that when an element or layer is referred to as being "located on," "connected to," "coupled to," or "adjacent to" another element or layer, it may be directly located on, directly connected to, coupled to, or adjacent to another element or layer, or there may be one or more intermediate elements or intermediate layers. When an element or layer is referred to as being "directly located on," "directly connected to," "directly coupled to," or "immediately adjacent to" another element or layer, there are no intermediate elements or intermediate layers. It will be understood that when a layer, region, or component is referred to as being "formed on" another layer, region, or component, it may be formed directly or indirectly on another layer, region, or component. That is, for example, there may be intermediate layers, regions, or components.

[0267] As used herein, the terms "substantially," "approximately," and similar terms are used as terms of approximation and not as terms of degree, and are intended to take into account the inherent variations in measurements or calculations that would be recognized by those of ordinary skill in the art.

[0268] The term "use" as used herein may be considered synonymous with the term "utilize."

[0269] The display device and / or any other related device or component according to the embodiment of the present invention described herein can be implemented using any suitable hardware, firmware (such as an application-specific integrated circuit), software or a combination of suitable software, firmware and hardware. For example, the various components of the display device can be formed on an integrated circuit (IC) chip or on a separate IC chip. Further, the various components of the display device can be implemented on a flexible printed circuit film, a tape carrier package (TCP), a printed circuit board (PCB), or formed on the same substrate. Further, the various components of the display device can be processes or threads running on one or more processors in one or more computing devices, executing computer program instructions and interacting with other system components to perform various functions described herein. Computer program instructions are stored in a memory, which can be implemented in a computing device using a standard storage device, such as, for example, a random access memory (RAM). Computer program instructions can also be stored in other non-temporary computer-readable media, such as, for example, a CD-ROM, a flash drive, etc. Moreover, those skilled in the art should recognize that the functions of various computing devices can be combined or integrated into a single computing device, or the functions of a specific computing device can be distributed on one or more other computing devices without departing from the scope of the exemplary embodiments of the present invention.

[0270] It should be understood that the embodiments described herein should be considered for descriptive purposes only and not for limiting purposes. Descriptions of features or aspects in each embodiment should typically be considered as being applicable to other similar features or aspects in other embodiments.

[0271] Although one or more embodiments have been described with reference to the drawings, it will be understood by those skilled in the art that various appropriate changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.

Claims

1. A display device, comprising: a first sub-pixel; a second sub-pixel facing the first sub-pixel and having a rectangular shape; as well as a third sub-pixel facing the first sub-pixel, spaced apart from the second sub-pixel and having a rectangular shape, wherein the second sub-pixel and the third sub-pixel are located in a square area, and The second sub-pixel and the third sub-pixel are symmetrical to each other about the center of the square area.

2. The display device according to claim 1, wherein: The first sub-pixel, the second sub-pixel, and the third sub-pixel are configured to emit light of different colors.

3. The display device according to claim 1, wherein: The second sub-pixel and the third sub-pixel face one side of the first sub-pixel.

4. The display device according to claim 1, wherein: The first sub-pixel has a square shape.

5. The display device according to claim 1, wherein: At least one of a short side of the second sub-pixel and a short side of the third sub-pixel is parallel to a side of the first sub-pixel.

6. The display device according to claim 1, further comprising: A spacer between the first sub-pixel and the second sub-pixel or between the first sub-pixel and the third sub-pixel. 7 . The display device according to claim 1 , wherein a periphery of the square area includes a portion of an edge of the second sub-pixel and a portion of an edge of the third sub-pixel.

8. The display device according to claim 1, wherein: A first distance which is the shortest distance from an edge of the first subpixel to the second subpixel and a second distance which is the shortest distance from the edge of the first subpixel to the third subpixel are equal to each other.

9. The display device according to claim 1, wherein: A plurality of first sub-pixels are arranged along a first direction, and A long side of the second sub-pixel or a long side of the third sub-pixel forms an angle of 45 degrees with respect to a straight line connecting centers of the first sub-pixels along the first direction.

10. The display device according to claim 1, wherein: An area of ​​the first sub-pixel is larger than at least one of an area of ​​the second sub-pixel and an area of ​​the third sub-pixel.

11. The display device according to claim 1, wherein: A vertex of at least one of the first sub-pixel, the second sub-pixel, and the third sub-pixel is chamfered.

12. A display device comprising: First intermediate layer; a second intermediate layer facing the first intermediate layer and having a rectangular shape; as well as a third intermediate layer facing the first intermediate layer, spaced apart from the second intermediate layer and having a rectangular shape, The second intermediate layer and the third intermediate layer are located in a square area, and the second intermediate layer and the third intermediate layer are symmetrical to each other about the center of the square area.

13. The display device according to claim 12, further comprising: a pixel defining layer, wherein the first intermediate layer, the second intermediate layer and the third intermediate layer are located on the pixel defining layer; as well as A spacer is provided on the pixel defining layer.

14. The display device according to claim 13, wherein: The spacer is located on the pixel defining layer between the first intermediate layer and the second intermediate layer or between the second intermediate layer and the third intermediate layer.

15. The display device according to claim 13, wherein: The first intermediate layer, the second intermediate layer, and the third intermediate layer include materials that emit light of different colors when power is applied to the first intermediate layer, the second intermediate layer, and the third intermediate layer.

Images