Display device

Abstract

A display device is provided. The display device includes a substrate, a first display area on which a plurality of main sub-pixels are arranged, and a second display area on which a basic unit is arranged. The basic unit includes an auxiliary light-emitting area in which a plurality of auxiliary sub-pixels are arranged on the substrate and a transmissive portion. Each of the plurality of auxiliary sub-pixels includes a pixel electrode on the substrate, an intermediate layer on the pixel electrode, and a counter electrode on the intermediate layer. The intermediate layers of the auxiliary sub-pixels that emit light of the same color among the plurality of auxiliary sub-pixels are connected to each other.

Description

[0001] This application claims the priority and benefit of Korean Patent Application No. 10-2020-0000493, filed on Jan. 2, 2020, with the Korean Intellectual Property Office (KIPO), the entire disclosure of which is incorporated herein by reference. Technical Field

[0002] One or more embodiments relate to a device, and more particularly, to a display device. Background Art

[0003] The applications of display devices have recently diversified. In addition, since display devices have become thinner and lighter, their range of use has increased.

[0004] Considering that display devices are utilized in various ways, various methods can be used to design the shape of display devices, and the functions that can be connected or linked to display devices can be increased. Summary of the Invention

[0005] One or more aspects of embodiments of the present disclosure relate to a display device including a first display area and a second display area, where the first display area is a main display area, and an optical element or the like can be disposed below the first display area. However, one or more aspects of the embodiments are merely examples, and thus the scope of the disclosure is not limited thereto.

[0006] 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 disclosed embodiments.

[0007] According to one or more embodiments, a display device includes: a substrate; a first display area in which a plurality of main sub-pixels are located on the substrate; and a second display area in which a basic unit is disposed, the basic unit including an auxiliary light-emitting area and a transmissive part, in the auxiliary light-emitting area, a plurality of auxiliary sub-pixels are located on the substrate, wherein each of the plurality of auxiliary sub-pixels includes a pixel electrode located on the substrate, an intermediate layer located on the pixel electrode, and a counter electrode located on the intermediate layer, and the intermediate layers of the auxiliary sub-pixels that emit light of the same color among the plurality of auxiliary sub-pixels are connected to each other.

[0008] The plurality of auxiliary sub-pixels may be arranged in a bar structure.

[0009] The plurality of auxiliary sub-pixels may be arranged in an RGBG Pentile matrix structure.

[0010] The display device may further include an inorganic insulating layer located on the substrate, and the inorganic insulating layer may include an opening corresponding to the transmissive part.

[0011] The counter electrode may be integrally disposed in the plurality of main sub-pixels in the first display region and the plurality of auxiliary sub-pixels in the second display region, and may include an opening corresponding to the transmissive portion.

[0012] The plurality of auxiliary sub-pixels may include: a first auxiliary sub-pixel for emitting light of a first color; and a plurality of second auxiliary sub-pixels for emitting light of a second color, wherein the distance between the first auxiliary sub-pixel and each second auxiliary sub-pixel is different from the distance between adjacent second auxiliary sub-pixels among the plurality of second auxiliary sub-pixels.

[0013] The intermediate layer may include at least one of an organic functional layer and an emission layer.

[0014] The emission layers of the intermediate layers of the auxiliary sub-pixels for emitting light of the same color among the plurality of auxiliary sub-pixels are connected to each other.

[0015] The plurality of auxiliary sub-pixels may include: a plurality of first auxiliary sub-pixels for emitting a first color; and a plurality of second auxiliary sub-pixels for emitting a second color, wherein at least two of the plurality of second auxiliary sub-pixels may be between adjacent first auxiliary sub-pixels among the plurality of first auxiliary sub-pixels.

[0016] According to one or more embodiments, a display device includes: a substrate, a first display region and a second display region disposed on the substrate, main sub-pixels disposed in the first display region, the second display region including an auxiliary light-emitting region and a transmissive portion; a first auxiliary sub-pixel disposed in the auxiliary light-emitting region, the first auxiliary sub-pixel for emitting light of a first color and including a first auxiliary pixel electrode and a first auxiliary intermediate layer; a plurality of second auxiliary sub-pixels spaced apart from each other in the auxiliary light-emitting region and for emitting light of a second color, each second auxiliary sub-pixel including a second auxiliary pixel electrode and a second auxiliary intermediate layer; and a counter electrode integrally disposed in the auxiliary light-emitting region, wherein at least two of the plurality of second auxiliary sub-pixels share the second auxiliary intermediate layer.

[0017] The display device may further include a functional layer between the second auxiliary pixel electrode and the counter electrode, wherein the functional layer may correspond to the transmissive portion.

[0018] The display device may further include an inorganic insulating layer on the substrate, wherein the inorganic insulating layer may include an opening corresponding to the transmissive portion.

[0019] The first display region and the second display region may be sealed by a packaging substrate facing the substrate.

[0020] The display device may further include a thin film encapsulation layer, which includes a first inorganic encapsulation layer, an organic encapsulation layer, and a second inorganic encapsulation layer that are sequentially disposed on the counter electrode.

[0021] The length direction of the first auxiliary sub-pixel may be different from the length direction of the second auxiliary sub-pixel among the plurality of second auxiliary sub-pixels.

[0022] The length direction of the first auxiliary sub-pixel is parallel to the length direction of the second auxiliary sub-pixel among the plurality of second auxiliary sub-pixels.

[0023] At least one of the first auxiliary sub-pixel and the second auxiliary sub-pixel may be arranged in an RGBG Pentile matrix structure.

[0024] The display device may further include a plurality of first auxiliary sub-pixels including the first auxiliary sub-pixel, wherein at least two second auxiliary sub-pixels among the plurality of second auxiliary sub-pixels may be between adjacent first auxiliary sub-pixels among the plurality of first auxiliary sub-pixels.

[0025] The display device may further include a plurality of first auxiliary sub-pixels including the first auxiliary sub-pixel, wherein at least two first auxiliary sub-pixels among the plurality of first auxiliary sub-pixels may share a first auxiliary intermediate layer.

[0026] According to one or more embodiments, a display device includes: a substrate, a first display area and a second display area are disposed on the substrate, main sub-pixels are disposed in the first display area, the second display area includes an auxiliary light-emitting area and a transmissive part; and a plurality of auxiliary sub-pixels, disposed in the auxiliary light-emitting area, each auxiliary sub-pixel includes a pixel electrode and an intermediate layer, wherein the plurality of auxiliary sub-pixels includes at least two auxiliary pixels for emitting light of the same color, wherein the intermediate layers of at least two auxiliary sub-pixels for emitting light of the same color among the plurality of auxiliary sub-pixels are connected to each other, and wherein the auxiliary sub-pixels including the connected intermediate layers emit at least one of blue light, green light, and red light.

[0027] According to the specific embodiments, the claims, and the drawings, other aspects, features, and advantages in addition to the above aspects, features, and advantages will be apparent. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Through the following description in conjunction with the drawings, the above and other aspects, features, and advantages of one or more exemplary embodiments disclosed will become more apparent, in the drawings:

[0029] Figure 1 is a schematic perspective view of a display device according to an embodiment;

[0030] Figure 2is a schematic cross-sectional view of a display device taken along Figure 1 line A-A' of an embodiment;

[0031] Figure 3A and Figure 3B is a schematic plan view of a display panel according to an embodiment;

[0032] Figure 4A is an equivalent circuit diagram of a pixel of a display panel according to an embodiment;

[0033] Figure 4B is an equivalent circuit diagram of a pixel of a display panel according to an embodiment;

[0034] Figure 5 is a schematic plan view of the arrangement of sub-pixels and transmissive portions disposed in a first display area and a second display area;

[0035] Figure 6 is along Figure 5 line I-I' and line II-II' of a display device taken along a schematic cross-sectional view;

[0036] Figure 7 is a schematic cross-sectional view of a display device according to another embodiment;

[0037] Figure 8 is a schematic cross-sectional view of a display device according to an embodiment;

[0038] Figure 9 is along Figure 5 line III-III' of a display device taken along a schematic cross-sectional view;

[0039] Figure 10 is a schematic plan view of the arrangement of sub-pixels disposed in a second display area according to another embodiment;

[0040] Figure 11 is a schematic plan view of the arrangement of sub-pixels disposed in a second display area according to another embodiment;

[0041] Figure 12 is a schematic plan view of the arrangement of sub-pixels disposed in a second display area according to another embodiment;

[0042] Figure 13 is a schematic plan view of the arrangement of sub-pixels disposed in a second display area according to another embodiment;

[0043] Figure 14 is a schematic plan view of the arrangement of sub-pixels disposed in a second display area according to another embodiment;

[0044] Figure 15is a schematic plan view of an arrangement of sub-pixels disposed in a second display area according to another embodiment;

[0045] Figure 16 is a schematic plan view of an arrangement of sub-pixels disposed in a second display area according to another embodiment;

[0046] Figure 17 is a schematic plan view of an arrangement of sub-pixels disposed in a second display area according to another embodiment;

[0047] Figure 18 is a schematic plan view of an arrangement of sub-pixels disposed in a second display area according to another embodiment;

[0048] Figure 19 is a schematic plan view of an arrangement of sub-pixels disposed in a second display area according to another embodiment;

[0049] Figure 20 is a schematic plan view of an arrangement of sub-pixels disposed in a second display area according to another embodiment;

[0050] Figure 21 is a schematic plan view of an arrangement of sub-pixels disposed in a second display area according to another embodiment;

[0051] Figure 22 is a schematic plan view of an arrangement of sub-pixels disposed in a second display area according to another embodiment;

[0052] Figure 23 is a schematic plan view of an arrangement of sub-pixels disposed in a second display area according to another embodiment;

[0053] Figure 24 is a cross-sectional view of an apparatus for manufacturing a display device according to an embodiment; and

[0054] Figure 25 is showing by Figure 24 is a cross-sectional view of a method of manufacturing a second main emission layer and a second auxiliary emission layer of a display device by the apparatus shown in DETAILED DESCRIPTION

[0055] Reference will now be made in more detail to the embodiments, examples of which are illustrated in the accompanying drawings, wherein like reference numerals always refer to like elements. For this reason, the embodiments given may have different forms and should not be construed as limited to the description set forth herein. Accordingly, the embodiments are described below only by reference to the drawings to explain aspects of the present specification. As used herein, the term "and / or" includes any combination and all combinations of one or more of the associated listed items. Throughout the disclosure, the expression "at least one of a, b, and c" means only a, only b, only c, both a and b, both a and c, both b and c, all of a, b, and c, or variations thereof.

[0056] One or more embodiments of the disclosure will now be described in more detail with reference to the accompanying drawings. Regardless of the figure numbers, the same or corresponding components are given the same reference numerals, and redundant descriptions are omitted.

[0057] It will be understood that although terms such as "first", "second", etc. may be used herein to describe various components, these components should not be limited by these terms. These components are only used to distinguish one component from another.

[0058] As used herein, unless the context clearly indicates otherwise, the singular forms "a", "an" are also intended to include the plural forms.

[0059] It will also be understood that the terms "comprises" and / or its variations as used herein specify the presence of the stated features or components, but do not preclude the presence or addition of one or more other features or components.

[0060] It will be understood that when a layer, region, or component is referred to as being "formed on" another layer, region, or component, the layer, region, or component may be formed directly or indirectly on the other layer, region, or component. That is, there may be, for example, intermediate layers, regions, and / or components.

[0061] Furthermore, when "may" is used in describing embodiments of the present disclosure, it refers to "one or more embodiments of the present disclosure".

[0062] As used herein, the phrase "plan view" may refer to viewing from the top or from a direction perpendicular to the display area of the display device.

[0063] For ease of description, spatial relative terms such as "under", "below", "lower", "above", "upper", "bottom", "top", etc. may be used herein to describe the relationship of one element or feature shown in the drawings to another element or feature. It will be understood that the spatial relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the drawings. For example, if the device in the drawings is flipped, an element described as "under" or "below" another element or feature will then be oriented "above" or "over" the other element or feature. Thus, the term "below" can encompass both an upper and a lower orientation. The device may be otherwise oriented (rotated 90 degrees or at other orientations), and the spatial relative descriptors used herein should be interpreted accordingly.

[0064] As used herein, the terms "substantially", "about" and similar terms are used as approximate terms and not as terms of degree, and are intended to account for the inherent deviations of measured or calculated values that would be recognized by a person of ordinary skill in the art.

[0065] For ease of illustration, the dimensions of the elements in the drawings may be exaggerated. In other words, since the dimensions and thicknesses of the components in the drawings are arbitrarily shown for ease of illustration, the following embodiments are not limited thereto.

[0066] When example embodiments can be implemented differently, the specific process orders may be performed differently from the described order. For example, two consecutively described processes may be performed substantially simultaneously or in an order opposite to the described order.

[0067] In the following embodiments, when a layer, region or component is connected to another, the layer, region or component may be directly connected to each other, or another layer, another region or another component may be disposed between the layer, region or component, and thus, the layer, region or component may be indirectly connected to each other. For example, in the following embodiments, when a layer, region or component is electrically connected to another, the layer, region or component may be directly electrically connected to each other, or another layer, another region or another component may be disposed between the layer, region or component, and thus, the layer, region or component may be indirectly electrically connected to each other.

[0068] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by a person of ordinary skill in the art to which this disclosure pertains. It will also be understood that terms (such as those defined in a general dictionary) should be interpreted as having a meaning consistent with their meaning in the relevant field and / or the context of this specification, and should not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

[0069] Figure 1 is a schematic perspective view of a display device 1 according to an embodiment.

[0070] Referring to Figure 1 , the display device 1 includes a first display area DA1 and a non-display area NDA. An image is realized in the first display area DA1, and no image is realized in the non-display area NDA. The display device 1 can provide a main image by using light emitted from a plurality of main sub-pixels Pm arranged in the first display area DA1.

[0071] The display device 1 includes a second display area DA2. Components such as sensors using infrared light, visible light, or sound can be arranged in or under the second display area DA2, as will be described with reference to Figure 2 . The second display area DA2 can include a transmissive portion TA that can transmit light and / or sound output from the components to the outside or traveling from the outside toward the components. In one or more embodiments, when light passes through the second display area DA2, the light transmittance in the second display area DA2 can be about 30% or greater, for example, 50% or greater, 75% or greater, 80% or greater, 85% or greater, or 90% or greater.

[0072] According to the present embodiment, the second display area DA2 can include an auxiliary light-emitting area Pg in which a plurality of auxiliary sub-pixels Pa are arranged, and light emitted from the plurality of auxiliary sub-pixels Pa can be used to provide a set or specific image. The image provided by the second display area DA2 is an auxiliary image, and thus can have a lower resolution than the image provided by the first display area DA1. In other words, since the second display area DA2 includes the transmissive portion TA that can transmit light and / or sound, the number of auxiliary sub-pixels Pa arranged per unit area can be less than the number of main sub-pixels Pm arranged per unit area in the first display area DA1.

[0073] The second display area DA2 can be arranged on one side of the first display area DA1 or adjacent to one side of the first display area DA1. In an embodiment, Figure 1 shows the second display area DA2 arranged at the upper side of the first display area DA1. Thus, the second display area DA2 is arranged between the non-display area NDA and the first display area DA1. However, the disclosure is not limited thereto. The second display area DA2 can be arranged to be surrounded by the first display area DA1 (for example, as shown in the embodiment of Figure 3B ), and various modifications can be made in a suitable manner.

[0074] For example, although Figure 1It is shown that the second display area DA2 is arranged on the upper side of the first display area DA1 having a rectangular shape, but the disclosure is not limited thereto. The shape of the first display area DA1 may be circular, elliptical, or polygonal (such as a triangle or a pentagon), and the second display area DA2 may be arranged within the first display area DA1 (i.e., the second display area DA2 may be surrounded by the first display area DA1) and may have various suitable shapes.

[0075] Although the organic light-emitting display device will now be shown and described as the display device 1, the display device 1 is not limited thereto. According to another embodiment, various suitable types of display devices (such as inorganic light-emitting display devices and quantum dot light-emitting display devices) may be used.

[0076] Figure 2 is a schematic cross-sectional view of the display device 1 according to an embodiment taken along the Figure 1 line A-A'.

[0077] Referring to Figure 2 , the display device 1 may include a display panel 10 and a component 20 corresponding to the second display area DA2, and the display panel 10 includes display elements. In one or more embodiments, the component 20 may be within or below the second display area DA2.

[0078] The display panel 10 may include a substrate 100, a display element layer 200 disposed on the substrate 100 (for example, the display element layer 200 may be on the substrate 100, while an insulating layer IL' is between the display element layer 200 and the substrate 100), and a thin film encapsulation layer 300 as an encapsulation member for sealing the display element layer 200. The display panel 10 may further include a lower protective film 175 disposed below the substrate 100.

[0079] The substrate 100 may include glass or a polymer resin. The polymer resin may include polyethersulfone, polyacrylate, polyetherimide, polyethylene naphthalate, polyethylene terephthalate, polyphenylene sulfide, polyarylate, polyimide, polycarbonate, cellulose acetate propionate, etc. The substrate 100 including the polymer resin may be flexible, rollable, and / or bendable. The substrate 100 may have a multilayer structure including a layer containing the aforementioned polymer resin and an inorganic layer.

[0080] The display element layer 200 may include a circuit layer containing thin film transistors (such as a first thin film transistor TFT and a second thin film transistor TFT'), display elements (such as organic light-emitting diodes OLED and OLED'), and an insulating layer IL (such as shown in Figure 2 the embodiment of

[0081] In the first display area DA1, a main sub-pixel Pm including a first thin film transistor TFT and an organic light emitting diode OLED connected to the first thin film transistor TFT may be arranged. In the second display area DA2, an auxiliary sub-pixel Pa including a second thin film transistor TFT' and an organic light emitting diode OLED' connected to the second thin film transistor TFT' may be arranged.

[0082] In the second display area DA2, a transmissive portion TA where no pixel is arranged may be arranged. The transmissive portion TA may be understood as a transmissive area that transmits light / signals emitted by the component 20 or light / signals incident on the component 20. In one or more embodiments, the transmissive portion TA overlaps with a plurality of components 20 and does not include pixels. In one or more embodiments, the transmissive portion TA may be arranged to alternate with the auxiliary light emitting area Pg. In other words, the transmissive portion TA may be arranged between adjacent auxiliary light emitting areas Pg, and the auxiliary light emitting areas Pg may be arranged between adjacent transmissive portions TA (e.g., as shown in the embodiment of Figure 1 .

[0083] The component 20 may be located in the second display area DA2 or below the second display area DA2. The component 20 may be an electronic component that uses light and / or sound. For example, the component 20 may be a sensor that receives and uses light (such as an infrared sensor), a sensor that outputs and senses light and / or sound to measure distance or identify fingerprints, etc., a small lamp that outputs light, a speaker that outputs sound, and / or a camera. The electronic component that uses light may use light of various suitable wavelength bands (such as visible light, infrared light, and / or ultraviolet light). In one or more embodiments, a plurality of components 20 may be arranged in the second display area DA2. For example, both a light emitting device and a light receiving device as the component 20 may be included in a single second display area DA2 or below a single second display area DA2. Alternatively, both a light emitting portion and a light receiving portion may be included in a single component (e.g., the component 20).

[0084] The lower electrode layer BSM may be arranged in the second display area DA2. The lower electrode layer BSM may be arranged to correspond to the lower part of the second thin film transistor TFT'. In one or more embodiments, the second thin film transistor TFT' may overlap with the lower electrode layer BSM. The lower electrode layer BSM may block external light from reaching the auxiliary sub-pixel Pa including the second thin film transistor TFT' and the like. For example, the lower electrode layer BSM may block light emitted from the component 20 from reaching the auxiliary sub-pixel Pa.

[0085] In one or more embodiments, a constant voltage or signal may be applied to the lower electrode layer BSM to prevent or reduce damage to the pixel circuit due to electrostatic discharge.

[0086] The thin film encapsulation layer 300 may include at least one inorganic encapsulation layer and at least one organic encapsulation layer. In this regard, Figure 2 the first inorganic encapsulation layer 310, the second inorganic encapsulation layer 330, and the organic encapsulation layer 320 between the first inorganic encapsulation layer 310 and the second inorganic encapsulation layer 330 are shown.

[0087] Each of the first inorganic encapsulation layer 310 and the second inorganic encapsulation layer 330 may include one or more inorganic insulating materials (such as, alumina, titanium oxide, tantalum oxide, hafnium oxide, zinc oxide, silicon oxide, silicon nitride, and / or silicon oxynitride). The organic encapsulation layer 320 may include polymer materials. Examples of polymer materials may include acrylic resins, epoxy resins, polyimides, and polyethylene.

[0088] The lower protective film 175 may be attached to the lower surface of the substrate 100 and may support and protect the substrate 100. The lower protective film 175 may include an opening 175OP corresponding to the second display area DA2. The lower protective film 175 may improve the light transmittance of the second display area DA2 by including the opening 175OP. The lower protective film 175 may include polyethylene terephthalate (PET) and / or polyimide (PI).

[0089] The second display area DA2 may have an area larger than the area of the region where the components 20 are arranged (for example, may have a planar area in the x-y plane larger than the planar area in the x-y plane of the region where the components 20 are arranged). In one or more embodiments, the second display area DA2 may extend farther than the components 20 in the x direction and / or the y direction. Accordingly, the area of the opening 175OP in the lower protective film 175 may not be the same as the area of the second display area DA2. For example, the area of the opening 175OP may be smaller than the area of the second display area DA2.

[0090] In one or more embodiments, a plurality of components 20 may be arranged in the second display area DA2. The plurality of components 20 may have different suitable functions. For example, one of the plurality of components 20 may be a camera, and another may be an infrared sensor.

[0091] In one or more embodiments, one or more components (such as, an input sensing member for sensing a touch input, an antireflection member including a polarizer and a retarder or a color filter and a black matrix, and a transparent window) may be arranged on the display panel 10.

[0092] According to the present embodiment, the thin film encapsulation layer 300 is used as an encapsulation member for sealing the display element layer 200, but the disclosure is not limited thereto. For example, an encapsulation substrate bonded to the substrate 100 by a sealant or a frit may be used as a member for sealing the display element layer 200.

[0093] Figure 3A and Figure 3B is a schematic plan view of the display panel 10 according to an embodiment.

[0094] Referring to Figure 3A and Figure 3B , the display panel 10 is disposed in the first display area DA1 and includes a plurality of main sub-pixels Pm. Each main sub-pixel Pm may include a display element such as an organic light emitting diode. Each main sub-pixel Pm may emit any one of red light, green light, blue light, and white light from the organic light emitting diode. The first display area DA1 may be covered by the encapsulation member described above with reference to Figure 2 to be protected from external air or moisture.

[0095] The second display area DA2 may be disposed on one side of the first display area DA1 or adjacent to one side of the first display area DA1, and an auxiliary light emitting area Pg in which a plurality of auxiliary sub-pixels Pa are disposed is disposed in the second display area DA2. Each auxiliary sub-pixel Pa may include a display element such as an organic light emitting diode. Each auxiliary sub-pixel Pa may emit any one of, for example, red light, green light, blue light, and white light from the organic light emitting diode. In this case, at least two auxiliary sub-pixels (e.g., two auxiliary sub-pixels from among Pa1, Pa2, and Pa3 (see Figure 5 )) that emit light of the same color may be disposed in the auxiliary light emitting area Pg. A transmissive portion TA disposed between the auxiliary light emitting areas Pg may be disposed in the second display area DA2. At least one component 20 may be disposed to correspond to the lower portion (e.g., the lower portion in the thickness direction or the z direction) of the second display area DA2 of the display panel 10.

[0096] In one or more embodiments, one main sub-pixel Pm and one auxiliary sub-pixel Pa may include the same pixel circuit. However, the disclosure is not limited thereto. The pixel circuits in the main sub-pixels Pm and the pixel circuits in the auxiliary sub-pixels Pa may be different from each other. Since the second display area DA2 includes the transmissive portion TA, the resolution of the second display area DA2 may be smaller than the resolution of the first display area DA1.

[0097] Each of the main sub-pixels Pm and the auxiliary sub-pixels Pa may be connected (e.g., electrically connected) to an external circuit disposed in the non-display area NDA. In the non-display area NDA, a first scan driving circuit 110, a second scan driving circuit 120, a terminal 140, a first power supply line 160, and a second power supply line 170 may be disposed.

[0098] The first scan driving circuit 110 may provide a scan signal to each of the main sub-pixels Pm and the auxiliary sub-pixels Pa through the scan lines SL. The first scan driving circuit 110 may provide a light emission control signal to each sub-pixel through the light emission control line EL. The second scan driving circuit 120 may be arranged in parallel with the first scan driving circuit 110, and the first display area DA1 and the second display area DA2 are between the second scan driving circuit 120 and the first scan driving circuit 110. Some of the main sub-pixels Pm and the auxiliary sub-pixels Pa arranged in the first display area DA1 and the second display area DA2 may be connected (e.g., electrically connected) to the first scan driving circuit 110, and other sub-pixels may be connected to the second scan driving circuit 120. In another embodiment, the second scan driving circuit 120 may be omitted.

[0099] The terminal 140 may be arranged on one side of the substrate 100 or adjacent to one side of the substrate 100. The terminal 140 may be exposed (i.e., the terminal may not be covered by an insulating layer) and connected (e.g., electrically connected) to the printed circuit board PCB. The terminal PCB-P of the printed circuit board PCB may be connected (e.g., electrically connected) to the terminal 140 of the display panel 10. The printed circuit board PCB transmits the signal or power of the controller to the display panel 10. The control signal generated by the controller may be transmitted to the first scan driving circuit 110 and the second scan driving circuit 120 through the printed circuit board PCB. The controller may provide the first power supply voltage ELVDD and the second power supply voltage ELVSS to the first power supply line 160 and the second power supply line 170 respectively through the first connection line 161 and the second connection line 171 (see Figure 4A , the second power supply voltage is also referred to as the common voltage). The first power supply voltage ELVDD may be provided to each of the main sub-pixels Pm and the auxiliary sub-pixels Pa through the driving voltage line PL connected to the first power supply line 160, and the second power supply voltage ELVSS may be provided to the counter electrode of each of the main sub-pixels Pm and the auxiliary sub-pixels Pa connected to the second power supply line 170.

[0100] The data driving circuit 150 is connected (e.g., electrically connected) to the data line DL. The data signal of the data driving circuit 150 may be provided to each of the main sub-pixels Pm and the auxiliary sub-pixels Pa through the connection line 151 connected to the terminal 140 and the data line DL connected to the connection line 151. Figure 3A It is shown that the data driving circuit 150 is arranged on the printed circuit board PCB. However, in another embodiment, the data driving circuit 150 may be arranged on the substrate 100. For example, the data driving circuit 150 may be arranged on the substrate 100 and between the terminal 140 and the first power supply line 160.

[0101] The first power line 160 may include a first sub-line 162 and a second sub-line 163 that extend parallel to each other in the x direction (e.g., parallel to each other), and the first display area DA1 is between the first sub-line 162 and the second sub-line 163. The second power line 170 may partially surround the first display area DA1 in an annular shape having an open side (e.g., the side adjacent to the terminal 140).

[0102] In Figure 3A , the second display area DA2 is shown as being arranged on one side of or adjacent to one side of the first display area DA1. However, the disclosure is not limited thereto. For example, as Figure 3B shown, the second display area DA2 may be set as an area corresponding to a sensor disposed below the second display area DA2. In this case, the second display area DA2 may be arranged in the first display area DA1 (i.e., the second display area DA2 may be surrounded by the first display area DA1).

[0103] Figure 4A And Figure 4B are equivalent circuit diagrams of the sub-pixels Pm and Pa of the display panel 10 according to an embodiment.

[0104] Referring to Figure 4A , each of the main sub-pixel Pm and the auxiliary sub-pixel Pa includes a pixel circuit PC connected to a scan line SL and a data line DL, and an organic light-emitting diode OLED connected to the pixel circuit PC.

[0105] The pixel circuit PC includes a driving thin-film transistor T1, a switching thin-film transistor T2, and a storage capacitor Cst (hereinafter divided into a main storage capacitor Cst and an auxiliary storage capacitor Cst' according to the region where it is located (see Figure 6 ). The switching thin-film transistor T2 is connected to the scan line SL (e.g., the gate electrode of the switching thin-film transistor T2 is connected to the scan line SL) and the data line DL, and is configured to transmit a data signal Dm received via the data line DL to the driving thin-film transistor T1 according to or based on a scan signal Sn received via the scan line SL.

[0106] The storage capacitor Cst is connected to the switching thin-film transistor T2 and the driving voltage line PL, and stores a voltage corresponding to the difference between the voltage received from the switching thin-film transistor T2 and the first power supply voltage ELVDD (or referred to as the driving voltage) supplied to the driving voltage line PL.

[0107] The driving thin-film transistor T1 is connected to the driving voltage line PL and the storage capacitor Cst, and can control the driving current flowing from the driving voltage line PL to the organic light-emitting diode OLED according to the voltage value stored in the storage capacitor Cst. The organic light-emitting diode OLED can emit light with a set or specific brightness according to or based on the driving current.

[0108] Although the Figure 4A shows a case where the pixel circuit PC includes two thin-film transistors and one storage capacitor, the disclosure is not limited thereto. As Figure 4B shows, the pixel circuit PC may include seven thin-film transistors and one storage capacitor.

[0109] Referring to Figure 4B , each of the main sub-pixel Pm and the auxiliary sub-pixel Pa includes a pixel circuit PC and an organic light-emitting diode OLED connected to the pixel circuit PC. The pixel circuit PC may include a plurality of thin-film transistors and a storage capacitor. The thin-film transistors and the storage capacitor may be connected to the signal lines SL, SL-1, EL, and DL, the initialization voltage line VL, and the driving voltage line PL.

[0110] Although in Figure 5 each of the main sub-pixel Pm and the auxiliary sub-pixel Pa is connected to the signal lines SL, SL-1, EL, and DL, the initialization voltage line VL, and the driving voltage line PL, the disclosure is not limited thereto. According to another embodiment, at least one of the signal lines SL, SL-1, EL, and DL and the initialization voltage line VL, the driving voltage line PL may be shared by adjacent pixels.

[0111] The plurality of thin-film transistors may include a driving thin-film transistor T1, a switching thin-film transistor T2, a compensating thin-film transistor T3, a first initialization thin-film transistor T4, an operation control thin-film transistor T5, a light emission control thin-film transistor T6, and a second initialization thin-film transistor T7.

[0112] The signal lines SL, SL-1, EL, and DL include a scan line SL for transmitting a scan signal Sn, a previous scan line SL-1 for transmitting the previous scan signal Sn-1 to the first initialization thin-film transistor T4 and the second initialization thin-film transistor T7, a light emission control line EL for transmitting a light emission control signal En to the operation control thin-film transistor T5 and the light emission control thin-film transistor T6, and a data line DL that intersects the scan line SL and transmits a data signal Dm. The driving voltage line PL is configured to transmit a driving voltage ELVDD to the driving thin-film transistor T1, and the initialization voltage line VL transmits an initialization voltage Vint that initializes the pixel electrodes of the driving thin-film transistor T1 and the organic light-emitting diode OLED.

[0113] The driving thin-film transistor T1 includes a driving gate electrode G1 connected to the first electrode Cst1 of the storage capacitor Cst, a driving source electrode S1 connected to the driving voltage line PL via the operation control thin-film transistor T5, and a driving drain electrode D1 connected (e.g., electrically connected) to the pixel electrode of the organic light-emitting diode OLED via the light emission control thin-film transistor T6. The driving thin-film transistor T1 receives the data signal Dm according to or based on the switching operation of the switching thin-film transistor T2, and supplies the driving current I OLED to the organic light-emitting diode OLED.

[0114] The switching thin-film transistor T2 includes a switching gate electrode G2 connected to the scan line SL, a switching source electrode S2 connected to the data line DL, and a switching drain electrode D2 connected to the driving source electrode S1 of the driving thin-film transistor T1 and also connected to the driving voltage line PL via the operation control thin-film transistor T5. The switching thin-film transistor T2 is turned on according to or based on the scan signal Sn received via the scan line SL, and performs a switching operation of transmitting the data signal Dm received from the data line DL to the driving source electrode S1 of the driving thin-film transistor T1.

[0115] The compensation thin-film transistor T3 includes a compensation gate electrode G3 connected to the scan line SL, a compensation source electrode S3 connected to the driving drain electrode D1 of the driving thin-film transistor T1 and also connected to the pixel electrode of the organic light-emitting diode OLED via the light emission control thin-film transistor T6, and a compensation drain electrode D3 connected to the first electrode Cst1 of the storage capacitor Cst, the first initialization drain electrode D4 of the first initialization thin-film transistor T4, and the driving gate electrode G1 of the driving thin-film transistor T1. The compensation thin-film transistor T3 is turned on according to or based on the scan signal Sn received via the scan line SL, and connects (e.g., electrically connects) the driving gate electrode G1 and the driving drain electrode D1 of the driving thin-film transistor T1 to each other, so that the driving thin-film transistor T1 is diode-connected.

[0116] The first initialization thin-film transistor T4 includes a first initialization gate electrode G4 connected to the previous scan line SL-1, a first initialization source electrode S4 connected to the second initialization drain electrode D7 of the second initialization thin-film transistor T7 and the initialization voltage line VL, and a first initialization drain electrode D4 connected to the first electrode Cst1 of the storage capacitor Cst, the compensation drain electrode D3 of the compensation thin-film transistor T3, and the driving gate electrode G1 of the driving thin-film transistor T1. The first initialization thin-film transistor T4 is turned on according to or based on the previous scan signal Sn-1 received via the previous scan line SL-1, and is configured to transmit the initialization voltage Vint to the driving gate electrode G1 of the driving thin-film transistor T1, thereby initializing the voltage of the driving gate electrode G1 of the driving thin-film transistor T1.

[0117] The operation control thin film transistor T5 includes an operation control gate electrode G5 connected to the emission control line EL, an operation control source electrode S5 connected to the driving voltage line PL, and an operation control drain electrode D5 connected to the driving source electrode S1 of the driving thin film transistor T1 and the switching drain electrode D2 of the switching thin film transistor T2.

[0118] The emission control thin film transistor T6 includes an emission control gate electrode G6 connected to the emission control line EL, an emission control source electrode S6 connected to the driving drain electrode D1 of the driving thin film transistor T1 and the compensation source electrode S3 of the compensation thin film transistor T3, and an emission control drain electrode D6 connected (e.g., electrically connected) to the second initialization source electrode S7 of the second initialization thin film transistor T7 and the pixel electrode of the organic light emitting diode OLED.

[0119] The operation control thin film transistor T5 and the emission control thin film transistor T6 are concurrently (e.g., simultaneously) turned on according to or based on the emission control signal En received via the emission control line EL. Thus, the driving voltage ELVDD is transmitted to the organic light emitting diode OLED, such that the driving current I OLED can flow in the organic light emitting diode OLED.

[0120] The second initialization thin film transistor T7 includes a second initialization gate electrode G7 connected to the previous scan line SL-1, a second initialization source electrode S7 connected to the emission control drain electrode D6 of the emission control thin film transistor T6 and the pixel electrode of the organic light emitting diode OLED, and a second initialization drain electrode D7 connected to the first initialization source electrode S4 of the first initialization thin film transistor T4 and the initialization voltage line VL. The second initialization thin film transistor T7 is turned on according to or based on the previous scan signal Sn-1 received via the previous scan line SL-1, and initializes the pixel electrode of the organic light emitting diode OLED.

[0121] Although in Figure 4B the first initialization thin film transistor T4 and the second initialization thin film transistor T7 are connected to the previous scan line SL-1, the disclosure is not limited thereto. According to another embodiment, the first initialization thin film transistor T4 may be connected to the previous scan line SL-1 and operate according to or based on the previous scan signal Sn-1, and the second initialization thin film transistor T7 may be connected to a separate signal line (e.g., the subsequent scan line) and operate according to or based on the signal transmitted to the separate signal line.

[0122] The second electrode Cst2 of the storage capacitor Cst is connected to the driving voltage line PL, and the counter electrode of the organic light emitting diode OLED is connected to the common voltage ELVSS. Thus, the organic light emitting diode OLED can receive the driving current I from the driving thin film transistor T1 OLEDAnd emit light to display an image.

[0123] Although each of the compensation thin film transistor T3 and the first initialization thin film transistor T4 has a dual gate electrode in Figure 4B each of the compensation thin film transistor T3 and the first initialization thin film transistor T4 may have a single gate electrode.

[0124] In this embodiment, the main sub-pixel Pm and the auxiliary sub-pixel Pa may include the same pixel circuit PC (e.g., having the same pixel circuit configuration). However, the disclosure is not limited thereto. The main sub-pixel Pm and the auxiliary sub-pixel Pa may include pixel circuits having different suitable structures. For example, the main sub-pixel Pm may employ Figure 4B a pixel circuit, and the auxiliary sub-pixel Pa may employ Figure 4A a pixel circuit. In one or more embodiments, the main sub-pixel Pm may employ Figure 4A a pixel circuit, and the auxiliary sub-pixel Pa may employ Figure 4B a pixel circuit.

[0125] Figure 5 is a schematic plan view of the arrangement of the light emitting regions and the transmissive regions of the sub-pixels Pm and Pa arranged in the first display region DA1 and the second display region DA2, and Figure 6 is a schematic cross-sectional view of the display device taken along Figure 5 lines I-I' and II-II'.

[0126] Referring to Figure 5 and Figure 6 the main sub-pixels Pm1, Pm2, and Pm3 are arranged in the first display region DA1 of the display device according to the embodiment, and the auxiliary light emitting region Pg and the transmissive portion TA including the auxiliary sub-pixels Pa1, Pa2, and Pa3 are arranged in the second display region DA2 of the display device.

[0127] In this embodiment, the main sub-pixels Pm1, Pm2, and Pm3 arranged in the first display region DA1 and the auxiliary sub-pixels Pa1, Pa2, and Pa3 arranged in the second display region DA2 may have different pixel array structures. In this specification, the arrangement structure of the pixels is described based on the light emitting regions of each sub-pixel. In this case, the light emitting regions of the sub-pixels may be defined by the openings of the pixel defining layer, which will be described in more detail below.

[0128] As Figure 5As shown, the main sub-pixels Pm1, Pm2, and Pm3 in the first display area DA1 can be arranged in a structure such as a Pentile structure. The first main sub-pixel Pm1, the second main sub-pixel Pm2, and the third main sub-pixel Pm3 can implement or provide different colors. For example, the first main sub-pixel Pm1, the second main sub-pixel Pm2, and the third main sub-pixel Pm3 can implement red, green, and blue respectively. In other words, the first main sub-pixel Pm1, the second main sub-pixel Pm2, and the third main sub-pixel Pm3 can provide red light, green light, and blue light respectively.

[0129] In one or more embodiments, a plurality of first main sub-pixels Pm1 and a plurality of third main sub-pixels Pm3 are alternately arranged in the first row 1N. A plurality of second main sub-pixels Pm2 can be arranged (e.g., repeatedly arranged) in an adjacent second row 2N (e.g., the second row 2N adjacent to the first row 1N), and can be spaced apart from each other at a set or specific interval. A plurality of third main sub-pixels Pm3 and a plurality of first main sub-pixels Pm1 can be alternately arranged in an adjacent third row 3N (e.g., the third row 3N adjacent to the second row 2N). A plurality of second main sub-pixels Pm2 can be arranged in an adjacent fourth row 4N (e.g., the fourth row 4N adjacent to the third row 3N), and can be spaced apart from each other at a set or specific interval. This arrangement of pixels can be repeated until the Nth row. Here, N represents a natural number greater than zero. In one or more embodiments, the area of each of the third main sub-pixel Pm3 and the first main sub-pixel Pm1 can be larger than the area of the second main sub-pixel Pm2 (e.g., the area of each of the third main sub-pixel Pm3 and the first main sub-pixel Pm1 in the plan view shown in Figure 5 is larger than the area of the second main sub-pixel Pm2 in the plan view shown in Figure 5 ).

[0130] A plurality of first main sub-pixels Pm1 and a plurality of third main sub-pixels Pm3 arranged in the first row 1N are interleaved with a plurality of second main sub-pixels Pm2 arranged in the second row 2N. In other words, the plurality of first main sub-pixels Pm1 and the plurality of third main sub-pixels Pm3 arranged in the first row 1N can be offset in the x direction from the plurality of second main sub-pixels Pm2 arranged in the second row 2N (i.e., do not share a column with the plurality of second main sub-pixels Pm2 arranged in the second row 2N). Therefore, the first main sub-pixels Pm1 and the third main sub-pixels Pm3 are alternately arranged in the first column 1M, a plurality of second main sub-pixels Pm2 are arranged in the adjacent second column 2M (e.g., the second column 2M adjacent to the first column 1M) and are spaced apart from each other at a set or specific interval, the third main sub-pixels Pm3 and the first main sub-pixels Pm1 are alternately arranged in the adjacent third column 3M (e.g., the third column 3M adjacent to the second column 2M), and a plurality of second main sub-pixels Pm2 are arranged in the adjacent fourth column 4M (e.g., the fourth column 4M adjacent to the third column 3M), and are spaced apart from each other at a set or specific interval. This arrangement of pixels can be repeated until the Mth column. Here, M represents a natural number greater than zero.

[0131] In one or more embodiments, the first main sub-pixels Pm1 are arranged at each of the first vertex and the third vertex that face each other among the vertices of the virtual quadrilateral VS, the center point of the second main sub-pixels Pm2 is at the center point of the virtual quadrilateral VS, and the third main sub-pixels Pm3 are arranged at each of the second vertex and the fourth vertex that are the remaining vertices. The second main sub-pixels Pm2 can be at the center point between the first main sub-pixels Pm1 arranged at each of the first vertex and the third vertex, and at the center point between the third main sub-pixels Pm3 arranged at each of the second vertex and the fourth vertex. In one or more embodiments, the virtual quadrilateral VS can be variously modified in a suitable manner. For example, the virtual quadrilateral VS can be a rectangle, a rhombus, or a square.

[0132] Such a pixel arrangement structure can be a matrix structure (e.g., a Pentile matrix structure), and in this case, a high resolution can be achieved with a small number of pixels by using a rendering driving scheme that shares adjacent pixels to present colors.

[0133] The auxiliary sub-pixels Pa1, Pa2, and Pa3 in the second display area DA2 can be arranged similarly to the main sub-pixels Pm1, Pm2, and Pm3. That is, the auxiliary sub-pixels Pa1, Pa2, and Pa3 can be arranged in an RGBG structure (e.g., an RGBG Pentile structure). The first auxiliary sub-pixel Pa1, the second auxiliary sub-pixel Pa2, and the third auxiliary sub-pixel Pa3 can achieve or provide different colors. For example, the first auxiliary sub-pixel Pa1, the second auxiliary sub-pixel Pa2, and the third auxiliary sub-pixel Pa3 can respectively achieve red, green, and blue. In other words, the first auxiliary sub-pixel Pa1, the second auxiliary sub-pixel Pa2, and the third auxiliary sub-pixel Pa3 can respectively provide red light, green light, and blue light. In one or more embodiments, compared with the main sub-pixels, two or more auxiliary sub-pixels that emit light of the same color can be arranged in the center of the auxiliary light-emitting area Pg.

[0134] The first auxiliary sub-pixel Pa1 and the third auxiliary sub-pixel Pa3 can be sequentially arranged in the first column 1I, and the third auxiliary sub-pixel Pa3 and the first auxiliary sub-pixel Pa1 can be sequentially arranged in the adjacent second column 2I. In this case, the first auxiliary sub-pixel Pa1 and the third auxiliary sub-pixel Pa3 can be arranged to face each other in the first column 1I and the second column 2I. In other words, the first auxiliary sub-pixel Pa1 in the first column 1I corresponds to the third auxiliary sub-pixel Pa3 in the second column 2I, and the third auxiliary sub-pixel Pa3 in the first column 1I corresponds to the first auxiliary sub-pixel Pa1 in the second column 2I.

[0135] A plurality of second auxiliary sub-pixels Pa2 can be arranged between the first auxiliary sub-pixel Pa1 and the third auxiliary sub-pixel Pa3 that are adjacent to each other (e.g., the first auxiliary sub-pixel Pa1 in the first column 1I and the third auxiliary sub-pixel Pa3 in the second column 2I). The plurality of second auxiliary sub-pixels Pa2 can be spaced apart from each other. In addition, at least two of the plurality of second auxiliary sub-pixels Pa2 can share at least one auxiliary intermediate layer. In this case, one first auxiliary sub-pixel Pa1, one third auxiliary sub-pixel Pa3, and two second auxiliary sub-pixels Pa2 can form a group and be repeatedly arranged in the auxiliary light-emitting area Pg.

[0136] In one or more embodiments, the second auxiliary intermediate layer of two adjacent second auxiliary sub-pixels Pa2 can be arranged in the first region AR1. In this case, as will be described below Figure 9 As shown in, in the first region AR1, the second auxiliary intermediate layer disposed on the second auxiliary pixel electrodes of each of the second auxiliary sub-pixels Pa2 adjacent to each other can be disposed on the pixel defining layer 119 disposed between the second auxiliary pixel electrodes adjacent to each other, and thus can be integrally formed.

[0137] In one or more embodiments, the planar area of the first region AR1 may be different from the planar area of the second auxiliary sub-pixel Pa2. For example, the planar area of the first region AR1 may be larger than the planar area of the second auxiliary sub-pixel Pa2. In one or more embodiments, the sum of the planar areas of all the second auxiliary sub-pixels Pa2 arranged in the first region AR1 may be smaller than the planar area of the first region AR1.

[0138] In this case, the first shortest distance d1 between the second auxiliary sub-pixels Pa2 adjacent to each other may be reduced. That is, generally, when forming sub-pixels, an intermediate layer on the pixel electrode can be formed by vapor-depositing a deposition material and depositing the deposition material through a mask assembly. In this case, due to assembly tolerances during the manufacture of the mask assembly, deformation of the mask assembly during the deposition process, etc., the intermediate layer cannot be formed according to the designed pattern. Therefore, a set or specific interval needs to be set between adjacent pixel electrodes. In this case, a set or specific distance must exist between the auxiliary sub-pixels that achieve or provide the same color. However, when the interval between the auxiliary sub-pixels is too large, the size of the auxiliary light-emitting region Pg increases, so the area of the transmission part TA decreases, and thus the transmittance of the second display region DA2 will decrease. However, when the auxiliary sub-pixels emitting different colors of light are not arranged between the auxiliary sub-pixels that achieve or provide the same color, as described above, the shortest distance between adjacent auxiliary sub-pixels can be reduced by sharing at least one intermediate layer.

[0139] That is, generally, when forming a pixel electrode, the pixel electrode can be patterned by a photoresist. In this case, the distance between adjacent pixel electrodes can be precisely adjusted. However, as described above, when at least one intermediate layer is formed on a plurality of pixel electrodes by a deposition process, in order to arrange the intermediate layer over all the pixel electrodes, a set or specific interval is required between the pixel electrodes.

[0140] However, in one or more of the disclosed embodiments, by placing the auxiliary sub-pixels that achieve or provide the same color adjacent to each other and sharing at least one auxiliary intermediate layer, the distance between the auxiliary sub-pixels that achieve or provide the same color can be reduced.

[0141] The first auxiliary sub-pixel Pa1, the second auxiliary sub-pixel Pa2, and the third auxiliary sub-pixel Pa3 may form an auxiliary light-emitting region Pg. In Figure 5 this case, although eight auxiliary sub-pixels Pa1, Pa2, and Pa3 are included in one auxiliary light-emitting region Pg, the number and arrangement of the auxiliary sub-pixels Pa1, Pa2, and Pa3 in one auxiliary light-emitting region Pg can be variously modified in a suitable manner.

[0142] Since no display element is arranged in the transmissive portion TA, the transmissive portion TA is a region with a high light transmittance. In one or more embodiments, a plurality of transmissive portions TA may be provided in the second display region DA2. The transmissive portions TA may be alternately arranged with the auxiliary light-emitting regions Pg in the first direction (i.e., the x-direction) and / or the second direction (i.e., the y-direction). Alternatively, the transmissive portions TA may be arranged to surround the auxiliary light-emitting regions Pg.

[0143] In the second display region DA2, the basic unit U in which the auxiliary light-emitting region Pg and the transmissive portion TA are bonded may be repeatedly arranged in the x-direction and the y-direction.

[0144] In Figure 5 the basic unit U may have a shape in which one auxiliary light-emitting region Pg and three transmissive portions TA arranged around the auxiliary light-emitting region Pg are bundled into a rectangular shape. The basic unit U is obtained by dividing the second display region DA2 into repeating shapes without indicating a break in the structure of the second display region DA2. For example, in one or more embodiments, the transmissive portion TA in one basic unit U may be integrally formed with the transmissive portion TA in the basic unit U adjacent to the one basic unit U.

[0145] In one or more embodiments, in the basic unit U, the area of the auxiliary light-emitting region Pg may be smaller than the area of the transmissive portion TA. For example, the area of the auxiliary light-emitting region Pg may be about one-third of the area of the transmissive portion TA. In other words, the area of the auxiliary light-emitting region Pg may be about one-fourth of the area of the basic unit U, and the area of the transmissive portion TA may be about three-fourths of the area of the basic unit U.

[0146] A corresponding unit U' having an area equal to or substantially equal to the area of the basic unit U may be set in the first display region DA1. In this case, the number of main sub-pixels Pm1, Pm2, and Pm3 in the corresponding unit U' may be larger than the number of auxiliary sub-pixels Pa1, Pa2, and Pa3 in the basic unit U.

[0147] Referring to Figure 6 , the third main sub-pixel Pm3 is arranged in the first display region DA1, and the third auxiliary sub-pixel Pa3 and the transmissive portion TA are arranged in the second display region DA2. In this case, the third main sub-pixel Pm3 and the third auxiliary sub-pixel Pa3 may be sub-pixels that emit light of the same color. In one or more embodiments, the third main sub-pixel Pm3 and the third auxiliary sub-pixel Pa3 may achieve blue. In other words, the third main sub-pixel Pm3 and the third auxiliary sub-pixel Pa3 may provide blue light.

[0148] The main sub-pixel Pm may include a first thin film transistor TFT, a main storage capacitor Cst, and a main organic light emitting diode OLED. The auxiliary sub-pixel Pa may include a second thin film transistor TFT', an auxiliary storage capacitor Cst', and an auxiliary organic light emitting diode OLED'. The transmissive portion TA may include an opening region TAH corresponding to the transmissive portion TA.

[0149] The component 20 may be disposed below the second display area DA2. The component 20 may be a camera for capturing an image or an infrared (IR) sensor for transmitting or receiving infrared light. Since the transmissive portion TA is disposed in the second display area DA2, the light emitted to or received from the component 20 may be transmitted. For example, the light emitted from the component 20 may pass through the transmissive portion TA and travel in the z direction (e.g., through the transmissive portion TA and away from the component 20), and the light generated outside the display device and incident on the component 20 may pass through the transmissive portion TA and travel in the -z direction (e.g., through the transmissive portion TA and toward the component 20). In one or more embodiments, the component 20 may include a plurality of image sensors, and one image sensor may be disposed corresponding to one transmissive portion TA.

[0150] Hereinafter, a structure in which components in a display device according to an embodiment are stacked will be described.

[0151] The substrate 100 may include glass or a polymer resin. The polymer resin may include polyethersulfone (PES), polyacrylate, polyetherimide (PEI), polyethylene naphthalate (PEN), polyethylene terephthalate (PET), polyphenylene sulfide (PPS), polyarylate, polyimide (PI), polycarbonate (PC), cellulose acetate propionate (CAP), etc. The substrate 100 including the polymer resin may be flexible, rollable, and / or bendable. The substrate 100 may have a multilayer structure including a layer containing the aforementioned polymer resin and an inorganic layer.

[0152] The buffer layer 111 may be located on the substrate 100, reduce or block the infiltration of foreign substances, moisture, or external air from below the substrate 100, and may provide a flat surface on the substrate 100. The buffer layer 111 may include an inorganic material (e.g., an oxide or a nitride), an organic material, or an organic and inorganic compound, and may be formed as a single layer or multiple layers of inorganic materials and organic materials. A barrier layer may be between the substrate 100 and the buffer layer 111 to prevent or reduce the infiltration of environmental air. In one or more embodiments, the buffer layer 111 may include silicon oxide (SiO2) and / or silicon nitride (SiN x )). The buffer layer 111 may be provided such that a first buffer layer 111a and a second buffer layer 111b are stacked.

[0153] In the second display area DA2, the lower electrode layer BSM may be disposed between the first buffer layer 111a and the second buffer layer 111b. In another embodiment, the lower electrode layer BSM may be disposed between the substrate 100 and the first buffer layer 111a. The lower electrode layer BSM may be disposed under the second thin film transistor TFT' and prevent or reduce the deterioration of the characteristics of the second thin film transistor TFT' due to the light emitted from the component 20.

[0154] In addition, the lower electrode layer BSM may be connected to the wiring GCL disposed on another layer through a contact hole. The lower electrode layer BSM may receive a constant voltage or a signal from the wiring GCL. For example, the lower electrode layer BSM may receive a driving voltage ELVDD or a scan signal. The lower electrode layer BSM may significantly reduce the possibility of generating electrostatic discharge in response to receiving a constant voltage or a signal. The lower electrode layer BSM may include aluminum (Al), platinum (Pt), palladium (Pd), silver (Ag), magnesium (Mg), gold (Au), nickel (Ni), neodymium (Nd), iridium (Ir), chromium (Cr), calcium (Ca), molybdenum (Mo), titanium (Ti), tungsten (W), and / or copper (Cu). The lower electrode layer BSM may include a single layer or multiple layers of the above materials.

[0155] The first thin film transistor TFT and the second thin film transistor TFT' may be disposed on the buffer layer 111. The first thin film transistor TFT includes a first semiconductor layer A1, a first gate electrode G1, a first source electrode S1, and a first drain electrode D1, and the second thin film transistor TFT' includes a second semiconductor layer A2, a second gate electrode G2, a second source electrode S2, and a second drain electrode D2. The first thin film transistor TFT may be connected to the main organic light emitting diode OLED in the first display area DA1 to drive the main organic light emitting diode OLED. The second thin film transistor TFT' may be connected to the auxiliary organic light emitting diode OLED' in the second display area DA2 to drive the auxiliary organic light emitting diode OLED'.

[0156] The first semiconductor layer A1 and the second semiconductor layer A2 are disposed on the buffer layer 111 and may include polysilicon. In another embodiment, both the first semiconductor layer A1 and the second semiconductor layer A2 may include amorphous silicon. In another embodiment, both the first semiconductor layer A1 and the second semiconductor layer A2 may include an oxide of at least one material selected from indium (In), gallium (Ga), tin (Sn), zirconium (Zr), vanadium (V), hafnium (Hf), cadmium (Cd), germanium (Ge), chromium (Cr), titanium (Ti), and zinc (Zn). The first semiconductor layer A1 and the second semiconductor layer A2 may both include a channel region and a source region and a drain region doped with impurities.

[0157] The second semiconductor layer A2 may be stacked on the lower electrode layer BSM, and the second buffer layer 111b is between the second semiconductor layer A2 and the lower electrode layer BSM. In an embodiment, the width of the second semiconductor layer A2 may be smaller than the width of the lower electrode layer BSM. Thus, when projected in a direction perpendicular to the substrate 100, the second semiconductor layer A2 may be entirely stacked on the lower electrode layer BSM. In other words, when viewed from a plan view, the second semiconductor layer A2 may be entirely stacked on the lower electrode layer BSM.

[0158] The first gate insulating layer 112 may be provided to cover the first semiconductor layer A1 and the second semiconductor layer A2. The first gate insulating layer 112 may include an inorganic insulating material (such as silicon oxide (SiO2), silicon nitride (SiN x ), silicon oxynitride (SiON), aluminum oxide (Al2O3), titanium oxide (TiO2), tantalum oxide (Ta2O5), hafnium oxide (HfO2), or zinc oxide (ZnO2)). The first gate insulating layer 112 may include a single layer or multiple layers containing the above inorganic insulating materials.

[0159] The first gate electrode G1 and the second gate electrode G2 are disposed on the first gate insulating layer 112 to be stacked on the first semiconductor layer A1 and the second semiconductor layer A2, respectively. Each of the first gate electrode G1 and the second gate electrode G2 may include Mo, Al, Cu, Ti, etc. and may include a single layer or multiple layers. For example, both the first gate electrode G1 and the second gate electrode G2 may include a single layer of Mo.

[0160] The second gate insulating layer 113 may be provided to cover the first gate electrode G1 and the second gate electrode G2. The second gate insulating layer 113 may include an inorganic insulating material (such as SiO2, SiN x , SiON, Al2O3, TiO2, Ta2O5, HfO2, or ZnO2). The second gate insulating layer 113 may include a single layer or multiple layers containing the above inorganic insulating materials.

[0161] The first upper electrode CE2 of the main storage capacitor Cst and the second upper electrode CE2' of the auxiliary storage capacitor Cst' may be disposed on the second gate insulating layer 113.

[0162] In the first display region DA1, the first upper electrode CE2 may be stacked on the underlying first gate electrode G1. The first gate electrode G1 and the first upper electrode CE2, which are stacked on each other and have the second gate insulating layer 113 therebetween, may form the main storage capacitor Cst. The first gate electrode G1 may be the first lower electrode CE1 of the main storage capacitor Cst.

[0163] In the second display region DA2, the second upper electrode CE2' may be stacked on the underlying second gate electrode G2. The second gate electrode G2 and the second upper electrode CE2', which are stacked on each other with a second gate insulating layer 113 therebetween, may form an auxiliary storage capacitor Cst'. The first gate electrode G1 may be the second lower electrode CE1' of the auxiliary storage capacitor Cst'.

[0164] Each of the first upper electrode CE2 and the second upper electrode CE2' may include Al, Pt, Pd, Ag, Mg, Au, Ni, Nd, Ir, Cr, Li, Ca, Mo, Ti, W, and / or Cu, and may include a single layer or multiple layers of the above materials.

[0165] The interlayer insulating layer 115 may be formed to cover the first upper electrode CE2 and the second upper electrode CE2'. The interlayer insulating layer 115 may include SiO2, SiN x , SiON, Al2O3, TiO2, Ta2O5, HfO2, or ZnO2.

[0166] When the first gate insulating layer 112, the second gate insulating layer 113, and the interlayer insulating layer 115 are collectively referred to as the inorganic insulating layer IL, the structure in which the inorganic insulating layer IL is stacked on the substrate 100 may have a transmittance of about 90% or more with respect to infrared wavelengths. For example, light having a wavelength of about 900 nm to about 1100 nm passing through the substrate 100 and the inorganic insulating layer IL may have a transmittance of about 90%.

[0167] The first source electrode S1 and the second source electrode S2, and the first drain electrode D1 and the second drain electrode D2 are disposed on the interlayer insulating layer 115. The first source electrode S1 and the second source electrode S2, and the first drain electrode D1 and the second drain electrode D2 may each include a conductive material containing Mo, Al, Cu, Ti, etc., and may be formed to include a single layer or multiple layers of the conductive material. For example, the first source electrode S1 and the second source electrode S2, and the first drain electrode D1 and the second drain electrode D2 may each have a multilayer structure of Ti / Al / Ti.

[0168] The planarization layer 117 may be disposed to cover the first source electrode S1 and the second source electrode S2, and the first drain electrode D1 and the second drain electrode D2. The planarization layer 117 may have a flat upper surface such that the main pixel electrode 221 and the auxiliary pixel electrode 221' disposed thereon are formed to be flat.

[0169] The planarization layer 117 may be formed as a single layer or multiple layers of an organic material. The planarization layer 117 may include commercial polymers (such as benzocyclobutene (BCB), polyimide, hexamethyldisiloxane (HMDSO), polymethyl methacrylate (PMMA), or polystyrene (PS)), polymer derivatives having phenolic groups, acrylate polymers, imide polymers, allyl ether polymers, amide polymers, fluorine polymers, parylene polymers, vinyl alcohol polymers, and / or blends thereof.

[0170] The planarization layer 117 has an opening exposing one of the first source electrode S1 and the first drain electrode D1 of the first thin film transistor TFT. The main pixel electrode 221 may contact the first source electrode S1 or the first drain electrode D1 through the opening and be connected (e.g., electrically connected) to the first thin film transistor TFT.

[0171] In addition, the planarization layer 117 has an opening exposing one of the second source electrode S2 and the second drain electrode D2 of the second thin film transistor TFT'. The auxiliary pixel electrode 221' may contact the second source electrode S2 or the second drain electrode D2 through the opening and be connected (e.g., electrically connected) to the second thin film transistor TFT'.

[0172] Both the main pixel electrode 221 and the auxiliary pixel electrode 221' may include a conductive oxide (such as indium tin oxide (ITO), indium zinc oxide (IZO), zinc oxide (ZnO), indium oxide (In2O3), indium gallium oxide (IGO), and / or aluminum zinc oxide (AZO)). In another embodiment, both the main pixel electrode 221 and the auxiliary pixel electrode 221' may include a reflective layer including Ag, Mg, Al, Pt, Pd, Au, Ni, Nd, Ir, Cr, or a compound thereof. In another embodiment, the main pixel electrode 221 and the auxiliary pixel electrode 221' may each further include a layer including ITO, IZO, ZnO, or In2O3 above or below the reflective layer. In one or more embodiments, both the main pixel electrode 221 and the auxiliary pixel electrode 221' may have a stacked structure of ITO / Ag / ITO.

[0173] The pixel defining layer 119 may cover the edges of each of the main pixel electrode 221 and the auxiliary pixel electrode 221'. The pixel defining layer 119 is stacked with each of the main pixel electrode 221 and the auxiliary pixel electrode 221' (e.g., stacked with the edge portions of each of the main pixel electrode 221 and the auxiliary pixel electrode 221' along the z direction), and includes a first opening OP1 and a second opening OP2, and the first opening OP1 and the second opening OP2 define the light emitting regions of the sub-pixels. The pixel defining layer 119 increases the distance between the edges of the main pixel electrode 221 and the auxiliary pixel electrode 221' and the counter electrode 223 on the main pixel electrode 221 and the auxiliary pixel electrode 221', thereby preventing or substantially preventing the occurrence of arcs at or in the edges of the main pixel electrode 221 and the auxiliary pixel electrode 221'. The pixel defining layer 119 may include an organic insulating material (such as polyimide, polyamide, acrylic resin, BCB, HMDSO, or phenolic resin), and may be formed by spin coating or the like.

[0174] When the planarization layer 117 and the pixel defining layer 119 are collectively referred to as the organic insulating layer OL, the organic insulating layer OL may have a transmittance of about 90% or more with respect to infrared wavelengths. For example, light having a wavelength of about 900 nm to about 1100 nm passing through the organic insulating layer OL may have a transmittance of about 90%.

[0175] The main intermediate layer and the auxiliary intermediate layer arranged corresponding to the main pixel electrode 221 and the auxiliary pixel electrode 221' may be included in the first opening OP1 and the second opening OP2 of the pixel defining layer 119. In this case, the main intermediate layer includes the main emission layer 222b, and the auxiliary intermediate layer is provided with the auxiliary emission layer 222b'. Each of the main emission layer 222b and the auxiliary emission layer 222b' may include a polymer material or a low molecular material, and may emit red light, green light, blue light, or white light.

[0176] The main intermediate layer and / or the auxiliary intermediate layer may include an organic functional layer 222e arranged above and / or below the main emission layer 222b and the auxiliary emission layer 222b'. The organic functional layer 222e may include a first functional layer 222a and / or a second functional layer 222c. The first functional layer 222a or the second functional layer 222c may be omitted.

[0177] The first functional layer 222a may be disposed under the main emission layer 222b and the auxiliary emission layer 222b'. In this case, in an embodiment, the first functional layer 222a may be patterned to correspond to the transmissive portion TA, and may be patterned to correspond to the first opening OP1 and the second opening OP2, like the main emission layer 222b and the auxiliary emission layer 222b', and may be disposed in the first opening OP1, the second opening OP2, and the transmissive portion TA. In another embodiment, the first functional layer 222a may be disposed to completely cover the first display area DA1 and the second display area DA2. In another embodiment, the first functional layer 222a may be patterned to correspond to the first opening OP1 and the second opening OP2, and may be disposed in the first opening OP1 and the second opening OP2 without being disposed in the transmissive portion TA. In another embodiment, the first functional layer 222a may be disposed to completely cover the first display area DA1 and cover the second display area DA2 except for the transmissive portion TA. Hereinafter, for ease of description, the case where the first functional layer 222a is disposed to completely cover the first display area DA1 and the second display area DA2 will be described in more detail.

[0178] The first functional layer 222a may include a single layer or multiple layers containing an organic material. The first functional layer 222a may be a hole transport layer (HTL) having a single-layer structure. Alternatively, the first functional layer 222a may include a hole injection layer (HIL) and an HTL. The first functional layer 222a may be integrally formed to correspond to the main sub-pixels Pm and the auxiliary sub-pixels Pa included in the first display area DA1 and the second display area DA2, respectively. Accordingly, the first functional layer 222a may correspond to the transmissive portion TA.

[0179] The second functional layer 222c may be disposed on the main emission layer 222b and the auxiliary emission layer 222b'. In this case, in an embodiment, the second functional layer 222c may be patterned to correspond to the transmissive portion TA, and may be patterned to correspond to the first opening OP1 and the second opening OP2, like the main emission layer 222b and the auxiliary emission layer 222b', and may be disposed in the first opening OP1, the second opening OP2, and the transmissive portion TA. In another embodiment, the second functional layer 222c may be disposed to completely cover the first display area DA1 and the second display area DA2. In another embodiment, the second functional layer 222c may be patterned to correspond to the first opening OP1 and the second opening OP2, and may be disposed in the first opening OP1 and the second opening OP2 but not in the transmissive portion TA. In other words, the second functional layer 222c may be disposed in the first opening OP1 and the second opening OP2 but not in the opening area TAH corresponding to the transmissive portion TA. In another embodiment, the second functional layer 222c may be disposed to completely cover the first display area DA1 and cover the second display area DA2 except for the transmissive portion TA (e.g., the opening area TAH corresponding to the transmissive portion TA). Hereinafter, for ease of description, the case where the second functional layer 222c is disposed to completely cover the first display area DA1 and the second display area DA2 will be described in more detail.

[0180] The second functional layer 222c may include a single layer or multiple layers containing an organic material. The second functional layer 222c may include an electron transport layer (ETL) and / or an electron injection layer (EIL). The second functional layer 222c may be integrally formed to correspond to the main sub-pixels Pm and the auxiliary sub-pixels Pa respectively included in the first display area DA1 and the second display area DA2. Accordingly, the second functional layer 222c may correspond to the transmissive portion TA.

[0181] The counter electrode 223 is disposed on the second functional layer 222c. The counter electrode 223 may include a conductive material having a low work function. For example, the counter electrode 223 may include a (semi) transparent layer containing Ag, Mg, Al, Pt, Pd, Au, Ni, Nd, Ir, Cr, Li, Ca, or an alloy thereof. Alternatively, the counter electrode 223 may further include a layer containing ITO, IZO, ZnO, or In2O3 on the (semi) transparent layer including the above materials. The counter electrode 223 may be integrally formed to correspond to the main sub-pixels Pm and the auxiliary sub-pixels Pa respectively included in the first display area DA1 and the second display area DA2.

[0182] The layer formed in the first display region DA1 from the main pixel electrode 221 to the counter electrode 223 may form the main organic light-emitting diode OLED. The layer formed in the second display region DA2 from the auxiliary pixel electrode 221' to the counter electrode 223 may form the auxiliary organic light-emitting diode OLED'.

[0183] The upper layer 250 including an organic material may be formed on the counter electrode 223. The upper layer 250 may be a layer provided to protect the counter electrode 223 and increase the light extraction efficiency. The upper layer 250 may include an organic material having a refractive index higher than that of the counter electrode 223. Alternatively, the upper layer 250 may be provided by stacking layers having different refractive indexes. For example, the upper layer 250 may be provided by sequentially stacking a high refractive index layer, a low refractive index layer, and a high refractive index layer. In this case, the refractive index of the high refractive index layer may be 1.7 or greater, and the refractive index of the low refractive index layer may be 1.3 or less.

[0184] The upper layer 250 may additionally include LiF. Alternatively, the upper layer 250 may additionally include an inorganic insulating material such as SiO2 or SiN x as described.

[0185] In the present embodiment, the first functional layer 222a, the second functional layer 222c, the counter electrode 223, and the upper layer 250 may include an opening region TAH corresponding to the transmission portion TA. That is, the first functional layer 222a, the second functional layer 222c, the counter electrode 223, and the upper layer 250 may each have an opening corresponding to the transmission portion TA. The openings of the first functional layer 222a, the second functional layer 222c, the counter electrode 223, and the upper layer 250 may be formed by laser. In one or more embodiments, the widths of the openings forming the opening region TAH may be substantially the same. For example, the width of the opening of the counter electrode 223 may be substantially the same as the width of the opening region TAH.

[0186] Additionally, in the present embodiment, the first functional layer 222a, the second functional layer 222c, and the upper layer 250 may be omitted. In this case, the opening of the counter electrode 223 may be the opening region TAH.

[0187] As used herein, the opening region TAH corresponding to the transmission portion TA may refer to an embodiment in which the opening region TAH overlaps the transmission portion TA. In this case, the area of the opening region TAH may be smaller than the area of the first hole H1 formed in the inorganic insulating layer IL. To this end, in Figure 6 the width Wt of the opening region TAH is smaller than the width W1 of the first hole H1, and the width W1 of the first hole H1 may be smaller than the width W2 of the second hole H2. Here, the area of the opening region TAH and the area of the first hole H1 may be defined as the area of the narrowest part of the opening.

[0188] In one or more embodiments, the first functional layer 222a, the second functional layer 222c, the counter electrode 223, and the upper layer 250 may be disposed on the sides of the first hole H1, the second hole H2, and the third hole H3. In one or more embodiments, the inclination of the sides of the first hole H1, the second hole H2, and the third hole H3 with respect to the upper surface of the substrate 100 may be gentler than the inclination of the sides of the opening area TAH with respect to the upper surface of the substrate 100.

[0189] As used herein, the formation of the opening area TAH refers to an embodiment in which a member such as the counter electrode 223 is removed from the transmissive portion TA, so that the light transmittance of the transmissive portion TA can be significantly increased.

[0190] The main organic light-emitting diode OLED and the auxiliary organic light-emitting diode OLED' may be sealed by the thin film encapsulation layer 300. The thin film encapsulation layer 300 may be disposed on the upper layer 250. The thin film encapsulation layer 300 may prevent or substantially prevent external moisture or foreign substances from infiltrating into the main organic light-emitting diode OLED and the auxiliary organic light-emitting diode OLED'.

[0191] The thin film encapsulation layer 300 may include at least one inorganic encapsulation layer and at least one organic encapsulation layer. In this regard, Figure 6 A structure is shown in which the thin film encapsulation layer 300 includes a first inorganic encapsulation layer 310, an organic encapsulation layer 320, and a second inorganic encapsulation layer 330 that are sequentially stacked. In another embodiment, the number of organic encapsulation layers, the number of inorganic encapsulation layers, and the stacking order may be appropriately changed.

[0192] Each of the first inorganic encapsulation layer 310 and the second inorganic encapsulation layer 330 may include one or more inorganic insulating materials (such as, alumina, titanium oxide, tantalum oxide, hafnium oxide, zinc oxide, silicon oxide, silicon nitride, and / or silicon oxynitride), and may be formed by chemical vapor deposition (CVD). The organic encapsulation layer 320 may include a polymer material. Examples of the polymer material may include silicone resin, acrylic resin, epoxy resin, polyimide, and polyethylene.

[0193] The first inorganic encapsulation layer 310, the organic encapsulation layer 320, and the second inorganic encapsulation layer 330 may be integrally formed to cover the display area (corresponding to the auxiliary light-emitting area Pg of the second display area DA2 and the first display area DA1) and the sensor area (corresponding to the transmissive portion TA). Accordingly, the first inorganic encapsulation layer 310, the organic encapsulation layer 320, and the second inorganic encapsulation layer 330 may be disposed in the opening area TAH.

[0194] In another embodiment, the organic encapsulation layer 320 may be integrally formed to cover the second display area DA2, but may not be in the transmissive portion TA. In other words, the organic encapsulation layer 320 may include an opening corresponding to the transmissive portion TA. In this case, the first inorganic encapsulation layer 310 and the second inorganic encapsulation layer 330 may be in contact with each other within the opening area TAH.

[0195] In this embodiment, the size of the second opening OP2 that defines the light-emitting area EA2 of the third auxiliary sub-pixel Pa3 may be larger than the size of the first opening OP1 that defines the light-emitting area EA1 of the third main sub-pixel Pm3. Therefore, when the same or substantially the same current is supplied to the third auxiliary sub-pixel Pa3 and the third main sub-pixel Pm3, the brightness of the third auxiliary sub-pixel Pa3 may be greater than the brightness of the third main sub-pixel Pm3.

[0196] In the second display area DA2, the number of auxiliary sub-pixels of each basic unit U is smaller than the number of main sub-pixels of the corresponding unit U', and generally, the brightness achieved in the corresponding unit U' in the first display area DA1 and the brightness achieved in the basic unit U in the second display area DA2 may be the same or substantially the same. Therefore, in one or more embodiments, the brightness of the third auxiliary sub-pixel Pa3 may be greater than the brightness of the third main sub-pixel Pm3, and the brightness achieved in the corresponding unit U' in the first display area DA1 and the brightness achieved in the basic unit U in the second display area DA2 may be the same or substantially the same.

[0197] Figure 7 is a schematic cross-sectional view of a display device according to an embodiment. In Figure 7 wherein, reference numerals identical to those in Figure 6 denote the same components, and repeated descriptions thereof are omitted.

[0198] Referring to Figure 7 , the display device includes a first display area DA1 and a second display area DA2. Main sub-pixels Pm are arranged in the first display area DA1, and an auxiliary light-emitting area including auxiliary sub-pixels Pa and a transmissive portion TA are arranged in the second display area DA2. The light-emitting area EA2 of the auxiliary sub-pixel Pa is larger than the light-emitting area EA1 of the main sub-pixel Pm. In addition, in the display device according to the embodiment, the pixel arrangement structure of the main sub-pixel Pm is different from the pixel arrangement structure of the auxiliary sub-pixel Pa.

[0199] In this embodiment, at least one of the first functional layer 222a, the second functional layer 222c, and the upper layer 250 may be arranged corresponding to the transmissive portion TA. That is, at least one of the first functional layer 222a, the second functional layer 222c, and the upper layer 250 may be arranged in the opening area TAH.

[0200] The counter electrode 223 has an opening corresponding to the transmissive portion TA, and the width of the opening may be substantially equal to the width of the opening area TAH. In this case, the counter electrode 223 can be formed by using a mask provided with a cover layer covering the transmissive portion TA.

[0201] In another embodiment, after the counter electrode 223 is formed on the entire surface of the substrate 100, an opening can be formed in the counter electrode 223 by removing the portion of the counter electrode 223 corresponding to the transmissive portion TA with a laser.

[0202] Figure 8 is a schematic cross-sectional view of a display device according to an embodiment. In Figure 8 In, the reference numerals identical to those in Figure 6 denote the same components, and their repeated descriptions are omitted.

[0203] Referring to Figure 8 , the display device includes a first display area DA1 in which main sub-pixels Pm are arranged and a second display area DA2 in which auxiliary sub-pixels Pa and a transmissive portion TA are arranged. The light-emitting area EA2 of the auxiliary sub-pixel Pa is larger than the light-emitting area EA1 of the main sub-pixel Pm. In addition, in the display device according to the embodiment, the pixel arrangement structure of the main sub-pixel Pm is different from the pixel arrangement structure of the auxiliary sub-pixel Pa.

[0204] In the present embodiment, the main organic light-emitting diode OLED and the auxiliary organic light-emitting diode OLED' may be covered by a encapsulation substrate 300'. The encapsulation substrate 300' includes a transparent material. For example, the encapsulation substrate 300' may include a glass material. Alternatively, the encapsulation substrate 300' may include a polymer resin or the like. The encapsulation substrate 300' can prevent or substantially prevent external moisture or foreign substances from penetrating into the main organic light-emitting diode OLED and the auxiliary organic light-emitting diode OLED'.

[0205] A sealing material such as a sealant may be disposed between the substrate 100 on which the main organic light-emitting diode OLED and the auxiliary organic light-emitting diode OLED' are formed and the encapsulation substrate 300'. The sealing material can block or substantially block external moisture or foreign substances that may penetrate between the substrate 100 and the encapsulation substrate 300'.

[0206] Figure 9 is a schematic cross-sectional view of the display device taken along the line III-III' of Figure 5 .

[0207] Referring to Figure 9, at least two of the plurality of auxiliary sub-pixels arranged in the auxiliary light-emitting region can emit light of the same color. For example, at least two first auxiliary sub-pixels, at least two second auxiliary sub-pixels Pa2, and / or at least two third auxiliary sub-pixels can be arranged in the auxiliary light-emitting region.

[0208] In this case, when there is no auxiliary sub-pixel that emits light of a color different from the same color between the auxiliary sub-pixels that emit light of the same color and are adjacent to each other among the plurality of auxiliary sub-pixels, the auxiliary sub-pixels that emit light of the same color and are adjacent to each other can share at least one intermediate layer. In other words, when two adjacent auxiliary sub-pixels emit light of the same color and there is no auxiliary sub-pixel that emits light of a different color between the two adjacent auxiliary sub-pixels, the two adjacent auxiliary sub-pixels can share at least one intermediate layer with each other. Specifically, when there is no auxiliary sub-pixel that emits light of a color different from the same color between the auxiliary sub-pixels that emit light of the same color and are adjacent to each other, the auxiliary sub-pixels that emit light of the same color and are adjacent to each other can share an organic functional layer and / or an auxiliary emission layer. Hereinafter, for the sake of convenience of description, the case where each auxiliary sub-pixel that shares at least one auxiliary intermediate layer is the second auxiliary sub-pixel Pa2 will be described in more detail below. In addition, the case where at least one second auxiliary intermediate layer shared by the second auxiliary sub-pixel Pa2 is the second auxiliary emission layer 222b'-2 will be described in more detail below.

[0209] For example, as Figure 5 shown, when the first auxiliary sub-pixel Pa1 and / or the third auxiliary sub-pixel Pa3 are not arranged between the adjacent second auxiliary sub-pixels Pa2, the adjacent second auxiliary sub-pixels Pa2 can share the second auxiliary emission layer 222b'-2 with each other. In this case, the second auxiliary emission layer 222b'-2 shared by the adjacent second auxiliary sub-pixels Pa2 can be disconnected and not shared by the first auxiliary sub-pixel Pa1, the third auxiliary sub-pixel Pa3, and the main sub-pixel. That is, based on Figure 9 the adjacent second auxiliary sub-pixels Pa2 can share the second auxiliary emission layer 222b'-2, and the first auxiliary sub-pixel Pa1, the third auxiliary sub-pixel Pa3, and the main sub-pixel will not share the second auxiliary emission layer 222b'-2.

[0210] In this case, as described above, the second auxiliary emission layer 222b'-2 can be integrally formed on the second auxiliary pixel electrode 221'-2 of one of the second auxiliary sub-pixels Pa2 adjacent to each other, the pixel defining layer 119 disposed between the second auxiliary pixel electrodes 221'-2 of the second auxiliary sub-pixels Pa2 adjacent to each other, and the second auxiliary pixel electrode 221'-2 of the other of the second auxiliary sub-pixels Pa2 adjacent to each other.

[0211] In this case, even if the second auxiliary emission layer 222b'-2 is deposited on the substrate 100 by evaporation (or vaporization), the second auxiliary emission layer 222b'-2 is not separately deposited in a pattern on the second auxiliary pixel electrodes 221'-2 spaced apart from each other. Thus, the interval between the second auxiliary pixel electrodes 221'-2 adjacent to each other can be reduced.

[0212] In general, one second auxiliary emission layer can be arranged to correspond to one second auxiliary pixel electrode and be spaced apart from the one second auxiliary pixel electrode. In this case, in order to arrange each second auxiliary emission layer to correspond to each second auxiliary pixel electrode, the second auxiliary pixel electrodes adjacent to each other must be sufficiently spaced apart from each other. In this case, since the second auxiliary pixel electrodes adjacent to each other must be spaced apart from each other at a minimum distance, there is a limitation in reducing the size of the auxiliary light-emitting region.

[0213] However, in one or more of the disclosed embodiments, as the shortest distance between the second auxiliary pixel electrodes 221'-2 adjacent to each other decreases, the shortest distance between the light-emitting regions of the second auxiliary sub-pixels Pa2 defined by the openings of the pixel defining layer 119 can be reduced. In this case, the shortest distance between the second auxiliary pixel electrodes 221'-2 is the minimum distance among the distances between the facing portions of the second auxiliary pixel electrodes 221'-2 among the second auxiliary pixel electrodes 221'-2 adjacent to each other.

[0214] Figure 10 is a schematic plan view of the arrangement of the auxiliary sub-pixels Pa1, Pa2, and Pa3 disposed in the second display region according to another embodiment.

[0215] Referring to Figure 10 , and Figure 5 corresponding to the second display region DA2 in, the second display region may include an auxiliary light-emitting region Pg and a transmissive portion TA. The auxiliary light-emitting region Pg and the transmissive portion TA may be similar to the auxiliary light-emitting region Pg and the transmissive portion TA shown in Figure 5 .

[0216] A plurality of auxiliary sub-pixels Pa1, Pa2, and Pa3 may be arranged in the auxiliary light-emitting region Pg. The plurality of auxiliary sub-pixels Pa1, Pa2, and Pa3 may include a first auxiliary sub-pixel Pa1, a second auxiliary sub-pixel Pa2, and a third auxiliary sub-pixel Pa3. The first auxiliary sub-pixel Pa1, the second auxiliary sub-pixel Pa2, and the third auxiliary sub-pixel Pa3 may implement or provide different colors. For example, the first auxiliary sub-pixel Pa1, the second auxiliary sub-pixel Pa2, and the third auxiliary sub-pixel Pa3 may implement red, green, and blue, respectively. In other words, the first auxiliary sub-pixel Pa1, the second auxiliary sub-pixel Pa2, and the third auxiliary sub-pixel Pa3 may provide red light, green light, and blue light, respectively. A plurality of first auxiliary sub-pixels Pa1 and a plurality of third auxiliary sub-pixels Pa3 may be provided. The plurality of first auxiliary sub-pixels Pa1 and the plurality of third auxiliary sub-pixels Pa3 may be arranged along a first direction (e.g., the x-direction in Figure 10 ). In addition, at least one of the plurality of first auxiliary sub-pixels Pa1 and at least one of the plurality of third auxiliary sub-pixels Pa3 may be arranged along a second direction (e.g., the y-direction in Figure 10 ). In this case, the plurality of second auxiliary sub-pixels Pa2 may be arranged between the plurality of first auxiliary sub-pixels Pa1 and the plurality of third auxiliary sub-pixels Pa3 (e.g., arranged between the plurality of first auxiliary sub-pixels Pa1 and the plurality of third auxiliary sub-pixels Pa3 along the x-direction and / or the y-direction).

[0217] The plurality of second auxiliary sub-pixels Pa2 may share a second auxiliary intermediate layer with each other. That is, an integrally formed second auxiliary intermediate layer may be arranged on the second auxiliary pixel electrodes of the second auxiliary sub-pixels Pa2 spaced apart from each other. The second auxiliary intermediate layer may be arranged on the plurality of second auxiliary sub-pixels Pa2 in the second region AR2. In this case, the plurality of second auxiliary sub-pixels Pa2 may be arranged in the second region AR2.

[0218] In this case, the first shortest distance d1 between the second auxiliary sub-pixels Pa2 arranged along the first direction and adjacent to each other may be reduced as described above. Additionally, since at least one second auxiliary intermediate layer does not need to be patterned to correspond to each second auxiliary sub-pixel Pa2 respectively, the second shortest distance d2 between the second auxiliary sub-pixels Pa2 arranged along the second direction and adjacent to each other may be reduced. In this case, the first shortest distance d1 and the second shortest distance d2 may be smaller than the shortest distance between the second auxiliary sub-pixel Pa2 and the first auxiliary sub-pixel Pa1 and the shortest distance between the second auxiliary sub-pixel Pa2 and the third auxiliary sub-pixel Pa3. In this case, the shortest distance may be the minimum distance among the straight-line distances from the outer side of one of the adjacent auxiliary sub-pixels to the outer side of the other adjacent auxiliary sub-pixels.

[0219] Figure 11 It is a schematic plan view of the arrangement of the auxiliary sub-pixels Pa1, Pa2, and Pa3 arranged in the second display area according to another embodiment.

[0220] Referring to Figure 11 , and Figure 5 , the second display area corresponding to the second display area DA2 in Figure 5 may include an auxiliary light-emitting area Pg and a transmissive portion TA. The auxiliary light-emitting area Pg and the transmissive portion TA may be similar to the auxiliary light-emitting area Pg and the transmissive portion TA shown in

[0221] A plurality of auxiliary sub-pixels Pa1, Pa2, and Pa3 may be arranged in the auxiliary light-emitting area Pg. The plurality of auxiliary sub-pixels Pa1, Pa2, and Pa3 may include a first auxiliary sub-pixel Pa1, a second auxiliary sub-pixel Pa2, and a third auxiliary sub-pixel Pa3. The first auxiliary sub-pixel Pa1, the second auxiliary sub-pixel Pa2, and the third auxiliary sub-pixel Pa3 may achieve or provide different colors. For example, the first auxiliary sub-pixel Pa1, the second auxiliary sub-pixel Pa2, and the third auxiliary sub-pixel Pa3 may respectively achieve red, green, and blue. In other words, the first auxiliary sub-pixel Pa1, the second auxiliary sub-pixel Pa2, and the third auxiliary sub-pixel Pa3 may respectively provide red light, green light, and blue light.

[0222] In this case, a plurality of third auxiliary sub-pixels Pa3 may be arranged in a line along a first direction (e.g., the x direction in Figure 11 ), and a plurality of first auxiliary sub-pixels Pa1 may be arranged in a line along the first direction. Additionally, some of the first auxiliary sub-pixels Pa1 among the plurality of first auxiliary sub-pixels Pa1 and some of the third auxiliary sub-pixels Pa3 among the plurality of third auxiliary sub-pixels Pa3 may be arranged in a line along a second direction (e.g., the y direction in Figure 11 ). For example, based on Figure 11 , one first auxiliary sub-pixel Pa1 and one third auxiliary sub-pixel Pa3 may be arranged in a line along the second direction. In this case, a plurality of second auxiliary sub-pixels Pa2 may be arranged between adjacent first auxiliary sub-pixels Pa1 and between adjacent third auxiliary sub-pixels Pa3. In one or more embodiments, two second auxiliary sub-pixels Pa2 may be arranged in a line along the first direction between two third auxiliary sub-pixels Pa3 arranged in a line along the first direction.

[0223] In this case, a plurality of adjacent second auxiliary sub-pixels Pa2 may share at least one second auxiliary intermediate layer. Specifically, a plurality of adjacent second auxiliary sub-pixels Pa2 may share a second auxiliary emission layer arranged in the entire first region AR1. In this case, the second auxiliary emission layer may completely cover the first region AR1.

[0224] Figure 12 is a schematic plan view of the arrangement of auxiliary sub-pixels Pa1, Pa2, and Pa3 arranged in a second display area according to another embodiment.

[0225] Referring to Figure 12 , and Figure 5 , the second display area corresponding to the second display area DA2 in Figure 5 may include an auxiliary light-emitting area Pg and a transmissive portion TA. The auxiliary light-emitting area Pg and the transmissive portion TA may be similar to the auxiliary light-emitting area Pg and the transmissive portion TA shown in

[0226] A plurality of auxiliary sub-pixels Pa1, Pa2, and Pa3 may be arranged in the auxiliary light-emitting area Pg. The plurality of auxiliary sub-pixels Pa1, Pa2, and Pa3 may include a first auxiliary sub-pixel Pa1, a second auxiliary sub-pixel Pa2, and a third auxiliary sub-pixel Pa3. The first auxiliary sub-pixel Pa1, the second auxiliary sub-pixel Pa2, and the third auxiliary sub-pixel Pa3 may achieve or provide different colors. For example, the first auxiliary sub-pixel Pa1, the second auxiliary sub-pixel Pa2, and the third auxiliary sub-pixel Pa3 may respectively achieve red, green, and blue. In other words, the first auxiliary sub-pixel Pa1, the second auxiliary sub-pixel Pa2, and the third auxiliary sub-pixel Pa3 may respectively provide red light, green light, and blue light.

[0227] The first auxiliary sub-pixel Pa1 and the third auxiliary sub-pixel Pa3 may be arranged in the same manner as the manner shown in Figure 11 . A plurality of second auxiliary sub-pixels Pa2 may be arranged between the first auxiliary sub-pixel Pa1 and the third auxiliary sub-pixel Pa3. In this case, the first auxiliary sub-pixel Pa1 and the third auxiliary sub-pixel Pa3 may be arranged to surround the plurality of second auxiliary sub-pixels Pa2. In this case, the plurality of second auxiliary sub-pixels Pa2 may be arranged in the middle of the auxiliary light-emitting area Pg.

[0228] Along a first direction (e.g., Figure 12 the x direction in Figure 12 ), a plurality of first auxiliary sub-pixels Pa1 arranged in a line may share at least one first auxiliary intermediate layer. Along a first direction (e.g.,

[0229] Figure 12 ), a plurality of third auxiliary sub-pixels Pa3 arranged in a line may share at least one third auxiliary intermediate layer. The plurality of second auxiliary sub-pixels Pa2 may share at least one second auxiliary intermediate layer. In one or more embodiments, the plurality of second auxiliary sub-pixels Pa2 are not arranged in the line including the plurality of first auxiliary sub-pixels Pa1 or the line including the plurality of third auxiliary sub-pixels Pa3.In this case, at least one third auxiliary intermediate layer may be disposed throughout the third region AR3 to include a plurality of third auxiliary sub-pixels Pa3. At least one first auxiliary intermediate layer may be disposed throughout the fourth region AR4 to include a plurality of first auxiliary sub-pixels Pa1.

[0230] In addition, at least one second auxiliary intermediate layer may be disposed throughout the second region AR2 to include a plurality of second auxiliary sub-pixels Pa2.

[0231] In this case, the shortest distance between adjacent first auxiliary sub-pixels Pa1, the first shortest distance and the second shortest distance between second auxiliary sub-pixels Pa2, and the shortest distance between third auxiliary sub-pixels Pa3 can be reduced. Thus, the area occupied by the auxiliary sub-pixels Pa1, Pa2, and Pa3 in the auxiliary light-emitting region Pg can be reduced. In this case, by reducing the area of the auxiliary light-emitting region Pg, the area occupied by the transmissive portion TA in the basic unit can be increased.

[0232] Therefore, in the display device, the transmittance of the second display region can be improved by ensuring that the area of the transmissive portion TA is as large as possible.

[0233] Figure 13 is a schematic plan view of the arrangement of the auxiliary sub-pixels Pa1, Pa2, and Pa3 disposed in the second display region according to another embodiment.

[0234] Referring to Figure 13 , the second display region corresponding to the second display region DA2 in Figure 5 may include an auxiliary light-emitting region Pg and a transmissive portion TA. The auxiliary light-emitting region Pg and the transmissive portion TA may be similar to the auxiliary light-emitting region Pg and the transmissive portion TA shown in Figure 5 .

[0235] A plurality of auxiliary sub-pixels Pa1, Pa2, and Pa3 may be disposed in the auxiliary light-emitting region Pg. The plurality of auxiliary sub-pixels Pa1, Pa2, and Pa3 may include a first auxiliary sub-pixel Pa1, a second auxiliary sub-pixel Pa2, and a third auxiliary sub-pixel Pa3. The first auxiliary sub-pixel Pa1, the second auxiliary sub-pixel Pa2, and the third auxiliary sub-pixel Pa3 may implement or provide different colors. For example, the first auxiliary sub-pixel Pa1, the second auxiliary sub-pixel Pa2, and the third auxiliary sub-pixel Pa3 may respectively implement red, green, and blue. In other words, the first auxiliary sub-pixel Pa1, the second auxiliary sub-pixel Pa2, and the third auxiliary sub-pixel Pa3 may respectively provide red light, green light, and blue light. In this case, the first auxiliary sub-pixel Pa1, the second auxiliary sub-pixel Pa2, and the third auxiliary sub-pixel Pa3 may all have a rectangular shape and may be arranged in a Pentile shape.

[0236] In this case, the first auxiliary sub-pixel Pa1 and the third auxiliary sub-pixel Pa3 can be arranged along a first direction (e.g., the x direction in Figure 13 ), and a second direction (e.g., the y direction in Figure 13 ). In this case, both the first auxiliary sub-pixel Pa1 and the third auxiliary sub-pixel Pa3 can have a strip shape. In one or more embodiments, the first auxiliary sub-pixel Pa1 and the third auxiliary sub-pixel Pa3 can be arranged in a line along the second direction.

[0237] At least two of the plurality of second auxiliary sub-pixels Pa2 can be arranged adjacent to or facing the side surfaces of the first auxiliary sub-pixel Pa1 and the third auxiliary sub-pixel Pa3 arranged along the second direction. In this case, at least two of the plurality of second auxiliary sub-pixels Pa2 can be arranged in a line along the second direction.

[0238] The plurality of second auxiliary sub-pixels Pa2 arranged in a line can share at least one second auxiliary intermediate layer. In this case, at least one second auxiliary intermediate layer located among the plurality of second auxiliary sub-pixels Pa2 arranged in a line may not be arranged on the first auxiliary sub-pixel Pa1, the third auxiliary sub-pixel Pa3, and / or the main sub-pixel.

[0239] In this case, the shortest distance between adjacent second auxiliary sub-pixels Pa2 can be reduced. Specifically, since it is not necessary to arrange at least one second auxiliary intermediate layer spaced apart between the second auxiliary sub-pixels Pa2 spaced apart from each other, the spacing distance between the second auxiliary sub-pixels Pa2 can be reduced. Therefore, in the display device, the transmissive area of the second display area can be maximized or increased by maximizing or increasing the area of the transmissive portion TA.

[0240] Figure 14 is a schematic plan view of the arrangement of the auxiliary sub-pixels Pa1, Pa2, and Pa3 arranged in the second display area according to another embodiment.

[0241] Referring to Figure 14 , and Figure 5 , the second display area corresponding to the second display area DA2 in Figure 5 can include an auxiliary light-emitting area Pg and a transmissive portion TA. The auxiliary light-emitting area Pg and the transmissive portion TA can be similar to the auxiliary light-emitting area Pg and the transmissive portion TA shown in

[0242] A plurality of auxiliary sub-pixels Pa1, Pa2, and Pa3 may be arranged in the auxiliary light-emitting region Pg. The plurality of auxiliary sub-pixels Pa1, Pa2, and Pa3 may include a first auxiliary sub-pixel Pa1, a second auxiliary sub-pixel Pa2, and a third auxiliary sub-pixel Pa3. The first auxiliary sub-pixel Pa1, the second auxiliary sub-pixel Pa2, and the third auxiliary sub-pixel Pa3 may achieve or provide different colors. For example, the first auxiliary sub-pixel Pa1, the second auxiliary sub-pixel Pa2, and the third auxiliary sub-pixel Pa3 may achieve red, green, and blue respectively. In other words, the first auxiliary sub-pixel Pa1, the second auxiliary sub-pixel Pa2, and the third auxiliary sub-pixel Pa3 may provide red light, green light, and blue light respectively. In this case, the first auxiliary sub-pixel Pa1, the second auxiliary sub-pixel Pa2, and the third auxiliary sub-pixel Pa3 may all have a rectangular shape and may be arranged in a Pentile shape. In this case, the first auxiliary sub-pixel Pa1 and the third auxiliary sub-pixel Pa3 may be arranged in the same manner as Figure 13 shown in.

[0243] A plurality of second auxiliary sub-pixels Pa2 may be arranged between the first auxiliary sub-pixel Pa1 and the third auxiliary sub-pixel Pa3 (e.g., between the first auxiliary sub-pixel Pa1 and the third auxiliary sub-pixel Pa3 in the line along the first direction or the x-direction in Figure 14 ). In one or more embodiments, the first auxiliary sub-pixel Pa1 and the third auxiliary sub-pixel Pa3 may be arranged to surround the plurality of second auxiliary sub-pixels Pa2.

[0244] The plurality of second auxiliary sub-pixels Pa2 arranged in the auxiliary light-emitting region Pg may share at least one second auxiliary intermediate layer. Specifically, the plurality of second auxiliary sub-pixels Pa2 may share a second auxiliary emission layer. In this case, the light-emitting regions of the plurality of second auxiliary sub-pixels Pa2 may be arranged in a second region AR2, in which the second auxiliary emission layer is arranged on a plane. In this case, the second auxiliary emission layer may be arranged on the second auxiliary pixel electrodes of each second auxiliary sub-pixel Pa2.

[0245] In this case, the interval between the second auxiliary sub-pixels Pa2 spaced apart from each other may be reduced. In this case, compared with separately forming second auxiliary emission layers spaced apart from each other to correspond to each second auxiliary sub-pixel Pa2 respectively, by reducing the area of the auxiliary light-emitting region Pg, the area of the transmissive portion TA may be increased, thereby increasing the transmittance of the second display region.

[0246] Figure 15 is a schematic plan view of the arrangement of the auxiliary sub-pixels Pa1, Pa2, and Pa3 arranged in the second display region according to another embodiment.

[0247] Reference Figure 15 , and the second display area corresponding to the second display area DA2 in Figure 5 may include an auxiliary light-emitting area Pg and a transmissive portion TA. The auxiliary light-emitting area Pg and the transmissive portion TA may be similar to the auxiliary light-emitting area Pg and the transmissive portion TA shown in Figure 5 .

[0248] A plurality of auxiliary sub-pixels Pa1, Pa2, and Pa3 may be arranged in the auxiliary light-emitting area Pg. The plurality of auxiliary sub-pixels Pa1, Pa2, and Pa3 may include a first auxiliary sub-pixel Pa1, a second auxiliary sub-pixel Pa2, and a third auxiliary sub-pixel Pa3. The first auxiliary sub-pixel Pa1, the second auxiliary sub-pixel Pa2, and the third auxiliary sub-pixel Pa3 may achieve or provide different colors. For example, the first auxiliary sub-pixel Pa1, the second auxiliary sub-pixel Pa2, and the third auxiliary sub-pixel Pa3 may respectively achieve red, green, and blue. In other words, the first auxiliary sub-pixel Pa1, the second auxiliary sub-pixel Pa2, and the third auxiliary sub-pixel Pa3 may respectively provide red light, green light, and blue light. In this case, the first auxiliary sub-pixel Pa1, the second auxiliary sub-pixel Pa2, and the third auxiliary sub-pixel Pa3 may all have a rectangular shape and may be arranged in a Pentile shape. In this case, the second auxiliary sub-pixel Pa2 may be arranged in the same manner as shown in Figure 13 .

[0249] In this case, a plurality of first auxiliary sub-pixels Pa1 may be arranged in a line along a first direction (e.g., the x direction in Figure 15 ). Additionally, a plurality of third auxiliary sub-pixels Pa3 may be arranged in a line along the first direction. Some of the first auxiliary sub-pixels Pa1 among the plurality of first auxiliary sub-pixels Pa1 and some of the third auxiliary sub-pixels Pa3 among the plurality of third auxiliary sub-pixels Pa3 may be arranged in a line along a second direction (e.g., the y direction in Figure 15 ).

[0250] In this case, some of the second auxiliary sub-pixels Pa2 among the plurality of second auxiliary sub-pixels Pa2 arranged in a line along the second direction may share at least one second auxiliary intermediate layer arranged in the fifth area AR5. Since the distance between the second auxiliary pixel electrodes can be adjusted or reduced, the distance between the plurality of second auxiliary sub-pixels Pa2 sharing at least one second auxiliary intermediate layer can be reduced (e.g., to increase the area of the transmissive portion TA).

[0251] Figure 16 is a schematic plan view of the arrangement of the auxiliary sub-pixels Pa1, Pa2, and Pa3 arranged in the second display area according to another embodiment.

[0252] Reference Figure 16 , andFigure 5 The second display area corresponding to the second display area DA2 in Figure 5 may include a secondary light-emitting area Pg and a transmissive portion TA. The secondary light-emitting area Pg and the transmissive portion TA may be similar to the secondary light-emitting area Pg and the transmissive portion TA shown in

[0253] A plurality of secondary sub-pixels Pa1, Pa2, and Pa3 may be arranged in the secondary light-emitting area Pg. The plurality of secondary sub-pixels Pa1, Pa2, and Pa3 may include a first secondary sub-pixel Pa1, a second secondary sub-pixel Pa2, and a third secondary sub-pixel Pa3. The first secondary sub-pixel Pa1, the second secondary sub-pixel Pa2, and the third secondary sub-pixel Pa3 may achieve or provide different colors. For example, the first secondary sub-pixel Pa1, the second secondary sub-pixel Pa2, and the third secondary sub-pixel Pa3 may achieve red, green, and blue, respectively. In other words, the first secondary sub-pixel Pa1, the second secondary sub-pixel Pa2, and the third secondary sub-pixel Pa3 may provide red light, green light, and blue light, respectively. In this case, the first secondary sub-pixel Pa1, the second secondary sub-pixel Pa2, and the third secondary sub-pixel Pa3 may each have a rectangular shape and may be arranged in a Pentile shape. In this case, the first secondary sub-pixel Pa1 and the third secondary sub-pixel Pa3 may be arranged in the same manner as shown in Figure 15 and the second secondary sub-pixel Pa2 may be arranged in the same manner as shown in Figure 14 In this case, a plurality of second secondary sub-pixels Pa2 may share at least one second secondary intermediate layer. In this case, at least one second secondary intermediate layer may be arranged in the second area AR2, and the light-emitting area of each second secondary sub-pixel Pa2 may be arranged in the second area AR2.

[0254] In this case, adjacent second secondary sub-pixels Pa2 can be designed to be as close as possible to each other, thereby reducing the size of the secondary light-emitting area Pg. Additionally, since the area of the transmissive portion TA can be ensured to be as large as possible, the transmittance of the second display area can be increased.

[0255]

[0256] Figure 17 is a schematic plan view of the arrangement of the secondary sub-pixels Pa1, Pa2, and Pa3 arranged in the second display area according to another embodiment.

[0257] Figure 17 Referring to Figure 5 , and Figure 5 the second display area corresponding to the second display area DA2 in Figure 5The auxiliary light-emitting region Pg and the transmissive portion TA shown in

[0258] A plurality of auxiliary sub-pixels Pa1, Pa2, and Pa3 may be arranged in the auxiliary light-emitting region Pg. The plurality of auxiliary sub-pixels Pa1, Pa2, and Pa3 may include a first auxiliary sub-pixel Pa1, a second auxiliary sub-pixel Pa2, and a third auxiliary sub-pixel Pa3. The first auxiliary sub-pixel Pa1, the second auxiliary sub-pixel Pa2, and the third auxiliary sub-pixel Pa3 may achieve or provide different colors. For example, the first auxiliary sub-pixel Pa1, the second auxiliary sub-pixel Pa2, and the third auxiliary sub-pixel Pa3 may achieve red, green, and blue respectively. In other words, the first auxiliary sub-pixel Pa1, the second auxiliary sub-pixel Pa2, and the third auxiliary sub-pixel Pa3 may provide red light, green light, and blue light respectively. In this case, the first auxiliary sub-pixel Pa1, the second auxiliary sub-pixel Pa2, and the third auxiliary sub-pixel Pa3 may each have a rectangular shape and may be arranged in a Pentile shape. In this case, the second auxiliary sub-pixel Pa2 may be arranged in the same manner as Figure 13 shown in Figure 16 In addition, the first auxiliary sub-pixel Pa1 and the third auxiliary sub-pixel Pa3 may be arranged similarly to the

[0259] The first auxiliary sub-pixel Pa1 and the third auxiliary sub-pixel Pa3 may be arranged between the second auxiliary sub-pixels Pa2. In this case, the second auxiliary sub-pixels Pa2 may be arranged in the peripheral portion of the auxiliary light-emitting region Pg, and the first auxiliary sub-pixel Pa1 and the third auxiliary sub-pixel Pa3 may be arranged in the central portion of the auxiliary light-emitting region Pg.

[0260] In this case, a plurality of third auxiliary sub-pixels Pa3 may share at least one third auxiliary intermediate layer arranged in the third region AR3. In this case, the light-emitting region of each third auxiliary sub-pixel Pa3 may be arranged in the third region AR3.

[0261] A plurality of first auxiliary sub-pixels Pa1 may share at least one first auxiliary intermediate layer arranged in the fourth region AR4. In this case, the light-emitting region of each first auxiliary sub-pixel Pa1 may be arranged in the fourth region AR4.

[0262] In this case, as adjacent first auxiliary sub-pixels Pa1 share an auxiliary intermediate layer, adjacent second auxiliary sub-pixels Pa2 share an auxiliary intermediate layer, and adjacent third auxiliary sub-pixels Pa3 share an auxiliary intermediate layer, the distance between the auxiliary sub-pixels may be reduced.

[0263] In this case, as described above, the area of the auxiliary light-emitting region Pg can be reduced, and the area of the transmissive portion TA can be increased.

[0264] Figure 18 is a schematic plan view of the arrangement of the auxiliary sub-pixels Pa1, Pa2, and Pa3 arranged in the second display region according to another embodiment.

[0265] Referring to Figure 18 , and Figure 5 The second display region corresponding to the second display region DA2 in can include an auxiliary light-emitting region Pg and a transmissive portion TA. The auxiliary light-emitting region Pg and the transmissive portion TA can be similar to Figure 5 The auxiliary light-emitting region Pg and the transmissive portion TA shown in.

[0266] A plurality of auxiliary sub-pixels Pa1, Pa2, and Pa3 can be arranged in the auxiliary light-emitting region Pg. The plurality of auxiliary sub-pixels Pa1, Pa2, and Pa3 can include a first auxiliary sub-pixel Pa1, a second auxiliary sub-pixel Pa2, and a third auxiliary sub-pixel Pa3. The first auxiliary sub-pixel Pa1, the second auxiliary sub-pixel Pa2, and the third auxiliary sub-pixel Pa3 can achieve or provide different colors. For example, the first auxiliary sub-pixel Pa1, the second auxiliary sub-pixel Pa2, and the third auxiliary sub-pixel Pa3 can respectively achieve red, green, and blue. In other words, the first auxiliary sub-pixel Pa1, the second auxiliary sub-pixel Pa2, and the third auxiliary sub-pixel Pa3 can respectively provide red light, green light, and blue light. In this case, the first auxiliary sub-pixel Pa1, the second auxiliary sub-pixel Pa2, and the third auxiliary sub-pixel Pa3 can all have a rectangular shape and can be arranged in a Pentile shape. In this case, the first auxiliary sub-pixel Pa1 and the third auxiliary sub-pixel Pa3 can be arranged in the same manner as Figure 13 shown in.

[0267] Each second auxiliary sub-pixel Pa2 can be arranged between the first auxiliary sub-pixel Pa1 and the third auxiliary sub-pixel Pa3. In this case, the length direction of the third auxiliary sub-pixel Pa3 and the length direction of the second auxiliary sub-pixel Pa2 can be different from each other. For example, the third auxiliary sub-pixel Pa3 can be formed to be long along the second direction (e.g., Figure 18 the y direction in), and the second auxiliary sub-pixel Pa2 can be formed to be long along the first direction (e.g., Figure 18 the x direction in). In other words, the third auxiliary sub-pixel Pa3 can have a short side and a long side, where the long side extends along the second direction (e.g., the y direction), and the second auxiliary sub-pixel Pa2 can have a short side and a long side, where the long side of the second auxiliary sub-pixel Pa2 extends along the first direction (e.g., the x direction) that intersects the second direction.

[0268] In this case, some of the plurality of second auxiliary sub-pixels Pa2 may share at least one second auxiliary intermediate layer disposed in the fifth region AR5. Additionally, some of the plurality of second auxiliary sub-pixels Pa2 may share at least one second auxiliary intermediate layer disposed in a region different from the region of the fifth region AR5.

[0269] Therefore, in the display device, the transmittance of the second display region can be increased by reducing the distance between adjacent auxiliary sub-pixels that emit the same color of light among the plurality of auxiliary sub-pixels Pa1, Pa2, and Pa3.

[0270] Figure 19 is a schematic plan view of the arrangement of the auxiliary sub-pixels Pa1, Pa2, and Pa3 disposed in the second display region according to another embodiment.

[0271] Referring to Figure 19 , and Figure 5 The second display region corresponding to the second display region DA2 in may include an auxiliary light-emitting region Pg and a transmissive portion TA. The auxiliary light-emitting region Pg and the transmissive portion TA may be similar to the auxiliary light-emitting region Pg and the transmissive portion TA shown in Figure 5 .

[0272] The plurality of auxiliary sub-pixels Pa1, Pa2, and Pa3 may be disposed in the auxiliary light-emitting region Pg. The plurality of auxiliary sub-pixels Pa1, Pa2, and Pa3 may include a first auxiliary sub-pixel Pa1, a second auxiliary sub-pixel Pa2, and a third auxiliary sub-pixel Pa3. The first auxiliary sub-pixel Pa1, the second auxiliary sub-pixel Pa2, and the third auxiliary sub-pixel Pa3 may implement or provide different colors. For example, the first auxiliary sub-pixel Pa1, the second auxiliary sub-pixel Pa2, and the third auxiliary sub-pixel Pa3 may respectively implement red, green, and blue. In other words, the first auxiliary sub-pixel Pa1, the second auxiliary sub-pixel Pa2, and the third auxiliary sub-pixel Pa3 may respectively provide red light, green light, and blue light. In this case, the first auxiliary sub-pixel Pa1, the second auxiliary sub-pixel Pa2, and the third auxiliary sub-pixel Pa3 may each have a rectangular shape and may be arranged in a Pentile shape. In this case, the first auxiliary sub-pixel Pa1 and the third auxiliary sub-pixel Pa3 may be arranged in the same manner as shown in Figure 15 , and the second auxiliary sub-pixel Pa2 may be arranged in the same manner as shown in Figure 18 .

[0273] In this case, multiple second auxiliary sub-pixels Pa2 may share at least one second auxiliary intermediate layer disposed in the second region AR2. In this case, the interval between multiple second auxiliary sub-pixels Pa2 sharing at least one second auxiliary intermediate layer may be reduced.

[0274] Therefore, the transmittance of the second display area of the display device can be improved.

[0275] Figure 20 It is a schematic plan view of the arrangement of auxiliary sub-pixels Pa1, Pa2, and Pa3 disposed in the second display area according to another embodiment.

[0276] Referring to Figure 20 , the second display area corresponding to the second display area DA2 in Figure 5 may include an auxiliary light-emitting area Pg and a transmissive portion TA. The auxiliary light-emitting area Pg and the transmissive portion TA may be similar to the auxiliary light-emitting area Pg and the transmissive portion TA shown in Figure 5 .

[0277] Multiple auxiliary sub-pixels Pa1, Pa2, and Pa3 may be disposed in the auxiliary light-emitting area Pg. The multiple auxiliary sub-pixels Pa1, Pa2, and Pa3 may include a first auxiliary sub-pixel Pa1, a second auxiliary sub-pixel Pa2, and a third auxiliary sub-pixel Pa3. The first auxiliary sub-pixel Pa1, the second auxiliary sub-pixel Pa2, and the third auxiliary sub-pixel Pa3 may implement or provide different colors. For example, the first auxiliary sub-pixel Pa1, the second auxiliary sub-pixel Pa2, and the third auxiliary sub-pixel Pa3 may implement red, green, and blue, respectively. In other words, the first auxiliary sub-pixel Pa1, the second auxiliary sub-pixel Pa2, and the third auxiliary sub-pixel Pa3 may provide red light, green light, and blue light, respectively. In this case, the first auxiliary sub-pixel Pa1, the second auxiliary sub-pixel Pa2, and the third auxiliary sub-pixel Pa3 may each have a rectangular shape and may be arranged in a Pentile shape. In this case, the first to third auxiliary sub-pixels Pa1 to Pa3 may be arranged similarly to the arrangement shown in Figure 17 .

[0278] In this case, adjacent first auxiliary sub-pixels Pa1 may share at least one first auxiliary intermediate layer disposed in the entire fourth region AR4, and adjacent second auxiliary sub-pixels Pa2 may share at least one second auxiliary intermediate layer disposed in the entire fifth region AR5. Additionally, adjacent third auxiliary sub-pixels Pa3 may share at least one third auxiliary intermediate layer disposed in the entire third region AR3.

[0279] Therefore, in the display device, the transmittance of the second display area can be improved.

[0280] Figure 21 It is a schematic plan view of the arrangement of the auxiliary sub-pixels Pa1, Pa2, and Pa3 arranged in the second display area according to another embodiment.

[0281] Referring to Figure 21 , the second display area corresponding to the second display area DA2 in Figure 5 may include an auxiliary light-emitting area Pg and a transmissive portion TA. The auxiliary light-emitting area Pg and the transmissive portion TA may be similar to the auxiliary light-emitting area Pg and the transmissive portion TA shown in Figure 5 .

[0282] A plurality of auxiliary sub-pixels Pa1, Pa2, and Pa3 may be arranged in the auxiliary light-emitting area Pg. The plurality of auxiliary sub-pixels Pa1, Pa2, and Pa3 may include a first auxiliary sub-pixel Pa1, a second auxiliary sub-pixel Pa2, and a third auxiliary sub-pixel Pa3. In this case, the first auxiliary sub-pixel Pa1, the second auxiliary sub-pixel Pa2, and the third auxiliary sub-pixel Pa3 may be arranged in a bar structure.

[0283] That is to say, the first auxiliary sub-pixel Pa1, the second auxiliary sub-pixel Pa2, and the third auxiliary sub-pixel Pa3 may be arranged side by side in the x direction. The first auxiliary sub-pixel Pa1, the second auxiliary sub-pixel Pa2, and the third auxiliary sub-pixel Pa3 may be set to be long in the y direction. In other words, each of the first auxiliary sub-pixel Pa1, the second auxiliary sub-pixel Pa2, and the third auxiliary sub-pixel Pa3 may have a short side and a long side, where the long side extends in the second direction (for example, the y direction), and the short side extends in the first direction (for example, the x direction) that intersects the second direction.

[0284] Alternatively, different from Figure 21 , the first auxiliary sub-pixel Pa1, the second auxiliary sub-pixel Pa2, and the third auxiliary sub-pixel Pa3 may be arranged side by side in the y direction. The first auxiliary sub-pixel Pa1, the second auxiliary sub-pixel Pa2, and the third auxiliary sub-pixel Pa3 may be set to be long in the x direction. In other words, each of the first auxiliary sub-pixel Pa1, the second auxiliary sub-pixel Pa2, and the third auxiliary sub-pixel Pa3 may have a short side and a long side, where the short side extends in the second direction (for example, the y direction), and the long side extends in the first direction (for example, the x direction) that intersects the second direction.

[0285] In this case, a plurality of second auxiliary sub-pixels Pa2 may be arranged between the first auxiliary sub-pixel Pa1 and the third auxiliary sub-pixel Pa3. In this case, a plurality of second auxiliary sub-pixels Pa2 may share the arrangement in the fifth area AR5 (for example, Figure 21At least one second auxiliary intermediate layer in the fifth region AR5) of an alternative embodiment of the embodiment. That is, a plurality of second auxiliary sub-pixels Pa2 may share the second auxiliary emission layer disposed in the fifth region AR5).

[0286] Therefore, in the display device, a transmission portion TA as wide as possible can be ensured.

[0287] Figure 22 It is a schematic plan view of the arrangement of auxiliary sub-pixels Pa1, Pa2, and Pa3 disposed in the second display region according to another embodiment.

[0288] Referring to Figure 22 and Figure 5 The second display region corresponding to the second display region DA2 in Figure 5 may include an auxiliary light-emitting region Pg and a transmission portion TA. The auxiliary light-emitting region Pg and the transmission portion TA may be similar to the auxiliary light-emitting region Pg and the transmission portion TA shown in

[0289] A plurality of auxiliary sub-pixels Pa1, Pa2, and Pa3 may be disposed in the auxiliary light-emitting region Pg. The plurality of auxiliary sub-pixels Pa1, Pa2, and Pa3 may include a first auxiliary sub-pixel Pa1, a second auxiliary sub-pixel Pa2, and a third auxiliary sub-pixel Pa3. In this case, the auxiliary sub-pixels Pa1, Pa2, and Pa3 disposed in the second display region may be arranged in a bar structure. The first auxiliary sub-pixel Pa1, the second auxiliary sub-pixel Pa2, and the third auxiliary sub-pixel Pa3 may implement or provide different colors. For example, the first auxiliary sub-pixel Pa1, the second auxiliary sub-pixel Pa2, and the third auxiliary sub-pixel Pa3 may implement red, green, and blue, respectively. In other words, the first auxiliary sub-pixel Pa1, the second auxiliary sub-pixel Pa2, and the third auxiliary sub-pixel Pa3 may provide red light, green light, and blue light, respectively.

[0290] The first auxiliary sub-pixel Pa1 and the second auxiliary sub-pixel Pa2 may be disposed in the first column 1I, and the third auxiliary sub-pixel Pa3 may be disposed in the adjacent second column 2I. One third auxiliary sub-pixel Pa3 may be set to correspond to one first auxiliary sub-pixel Pa1 and one second auxiliary sub-pixel Pa2, and the size of the third auxiliary sub-pixel Pa3 may be larger than the sizes of the first auxiliary sub-pixel Pa1 and the second auxiliary sub-pixel Pa2. That is, the first auxiliary sub-pixel Pa1 and the second auxiliary sub-pixel Pa2 may be arranged to be long in the x direction, and the third auxiliary sub-pixel Pa3 may be arranged to be long in the y direction. Therefore, the length of the third auxiliary sub-pixel Pa3 in the y direction may be equal to or greater than the sum of the lengths of the first auxiliary sub-pixel Pa1 in the y direction and the second auxiliary sub-pixel Pa2 in the y direction. Such a pixel arrangement structure is called an S-bar structure.

[0291] The first auxiliary sub-pixel Pa1, the second auxiliary sub-pixel Pa2, and the third auxiliary sub-pixel Pa3 can form an auxiliary light-emitting region Pg. In Figure 5 , one auxiliary light-emitting region Pg includes eight auxiliary sub-pixels Pa1, Pa2, and PA3. However, the number and arrangement of the auxiliary sub-pixels Pa1, Pa2, and Pa3 included in one auxiliary light-emitting region Pg can be variously modified in a suitable manner.

[0292] In this case, the second auxiliary sub-pixels Pa2 adjacent to each other can be arranged between the first auxiliary sub-pixels Pa1 spaced apart from each other. In this case, the second auxiliary sub-pixels Pa2 adjacent to each other can share at least one second auxiliary intermediate layer arranged in the fifth region AR5.

[0293] In addition, the third auxiliary sub-pixels Pa3 adjacent to each other can share at least one third auxiliary intermediate layer arranged in the third region AR3.

[0294] Therefore, in the display device, the size of the auxiliary light-emitting region Pg can be reduced, and thus the transmittance of the second display region can be improved.

[0295] Figure 23 is a schematic plan view of the arrangement of the sub-pixels Pm1, Pm2, and Pm3 and Pa1, Pa2, and Pa3 arranged in the first display region DA1 and the second display region DA2 according to another embodiment.

[0296] Referring to Figure 23 , the main sub-pixels Pm1, Pm2, and Pm3 arranged in the first display region DA1 and the auxiliary sub-pixels Pa1, Pa2, and Pa3 arranged in the second display region DA2 can have different pixel arrangement structures.

[0297] In this embodiment, the first main sub-pixel Pm1 and the first auxiliary sub-pixel Pa1 can implement red, the second main sub-pixel Pm2 and the second auxiliary sub-pixel Pa2 can implement green, and the third main sub-pixel Pm3 and the third auxiliary sub-pixel Pa3 can implement blue. In other words, the first main sub-pixel Pm1 and the first auxiliary sub-pixel Pa1 can provide red light, the second main sub-pixel Pm2 and the second auxiliary sub-pixel Pa2 can provide green light, and the third main sub-pixel Pm3 and the third auxiliary sub-pixel Pa3 can provide blue light.

[0298] In this embodiment, a third main sub-pixel Pm3 that implements blue (or provides blue light) in the first display area DA1 is arranged in odd rows (e.g., the first row 1N). However, a third auxiliary sub-pixel Pa3 that implements blue in the second display area DA2 is arranged in even rows (e.g., the second row 2N). This arrangement is referred to as an RGBG matrix structure (e.g., an RGBG Pentile matrix structure).

[0299] A second main sub-pixel Pm2 that implements green (or provides green light) in the first display area DA1 is arranged in even rows (such as the second row 2N). However, a second auxiliary sub-pixel Pa2 that implements green in the second display area DA2 is arranged in odd rows (such as the first row 1N). This arrangement is referred to as an RBGB matrix structure (e.g., an RBGB Pentile matrix structure). That is, the positions of the blue sub-pixels and the green sub-pixels are reversed in the first display area DA1 and the second display area DA2. In this case, adjacent first auxiliary sub-pixels Pa1 can share a first auxiliary emission layer in the fourth area AR4, and adjacent second auxiliary sub-pixels Pa2 can share a second auxiliary emission layer in the fifth area AR5. Adjacent third auxiliary sub-pixels Pa3 can share a third auxiliary emission layer in the third area AR3.

[0300] In this case, since the interval between adjacent auxiliary sub-pixels that emit the same color of light can be reduced, the area of the auxiliary light-emitting region Pg can be reduced and the area of the transmissive portion TA can be increased.

[0301] Therefore, the transmittance of the display device can be improved, thereby preventing or substantially preventing failures of components arranged in the second display area DA2.

[0302] Figure 24 is a cross-sectional view of a device 400 for manufacturing a display device according to an embodiment. Figure 25 is a cross-sectional view showing a method of manufacturing a second main emission layer and a second auxiliary emission layer of a display device by the device 400 shown in Figure 24 A cross-sectional view of the method of manufacturing a second main emission layer and a second auxiliary emission layer of a display device by the device 400 shown in

[0303] Referring to Figure 24 and Figure 25 , a display device can be manufactured by the device 400 for manufacturing a display device.

[0304] The device 400 may include a chamber 410, a mask assembly 420, a first support 430, a second support 440, a deposition source 450, a magnetic generator 460, a vision unit 470, and a pressure regulator 480.

[0305] The chamber 410 may have a space formed therein, and a part of the chamber 410 may be formed to have an opening. A gate valve 411 may be disposed in the opening of the chamber 410 to be opened or closed.

[0306] A mask assembly 420 may be disposed within the chamber 410. The mask assembly 420 may include a mask frame 421 and a mask sheet 422. The mask frame 421 may be formed by connecting a plurality of frames to each other and may include an opening therein. In this case, the mask frame 421 may include one opening or a plurality of openings separated or spaced apart from each other. In this case, the mask frame 421 may have a lattice shape (e.g., a window frame).

[0307] The mask sheet 422 may extend over the mask frame 421 and be fixed to the mask frame 421. The mask sheet 422 may have an opening through which a deposition material passes. One mask sheet 422 or a plurality of mask sheets 422 may be included. When one mask sheet 422 is included, the mask sheet 422 may be disposed on the mask frame 421 and may block the opening of the mask frame 421. According to another embodiment, when a plurality of mask sheets 422 are included, the plurality of mask sheets 422 may be disposed on the mask frame 421 to be adjacent to each other along one side of the mask frame 421 and may block the opening of the mask frame 421. For ease of description, the case including a plurality of mask sheets 422 will now be described in more detail.

[0308] The mask sheet 422 may include a first body unit and a second body unit. The first body unit includes a first opening 422a, and the second body unit includes a second opening 422b. The first opening 422a and the second opening 422b may have different shapes and / or sizes from each other. For example, the size of the planar shape of each first opening 422a may be different from the size of the planar shape of each second opening 422b. For example, as Figure 24 shown, the size of the planar shape of each first opening 422a may be larger than the size of the planar shape of each second opening 422b. The size of the planar shape of the opening may be the size of the planar shape of the opening on a surface of the mask sheet 422 facing the deposition source 450.

[0309] The mask assembly 420 may further include a support frame (not shown) disposed on the mask frame 421. The support frame may be disposed in the opening of the mask frame 421 and may block the gap between the mask sheets 422, or may be disposed in a direction perpendicular to the length direction of the mask sheet 422.

[0310] The substrate 100 may be placed on the first support 430. In this case, the first support 430 may adjust the position of the substrate 100. For example, the first support 430 may include a UVW stage (not shown).

[0311] The mask assembly 420 may be disposed on the second support member 440. In this case, similar to the first support member 430, the second support member 440 may adjust the position of the mask assembly 420.

[0312] At least one of the first support member 430 and the second support member 440 may be raised or lowered within the chamber 410. In this case, at least one of the first support member 430 and the second support member 440 may adjust the gap between the display substrate D and the mask frame 421.

[0313] The deposition material may be accommodated in the deposition source 450, and then be vaporized or sublimated and supplied to the chamber 410. The deposition source 450 may include a heater therein, and melt or sublime the deposition material by heating the deposition material within the deposition source 450 according to the operation of the heater. In this case, the deposition source 450 may be disposed at the center or a corner of the chamber 410. Hereinafter, for ease of description, the case where the deposition source 450 is disposed at the center of the chamber 410 will be described in more detail below.

[0314] The magnetic force generator 460 may be disposed within the chamber 410, and may bring the substrate 100 and the mask assembly 420 into close contact with each other. In this case, the magnetic force generator 460 may include, for example, an electromagnet or a permanent magnet that generates a magnetic force.

[0315] The vision unit 470 may be disposed within the chamber 410, and may photograph the corresponding positions of the mask assembly 420 and the substrate 100. The vision unit 470 may photograph alignment marks and the like of at least one of the mask assembly 420 and the substrate 100.

[0316] The pressure regulator 480 may be connected to the chamber 410 and may adjust the internal pressure of the chamber 410. The pressure regulator 480 may include a connection pipe 481 connected to the chamber 410 and a pump 482 provided on the connection pipe 481.

[0317] During the operation of the apparatus 400, when the pressure regulator 480 maintains the internal pressure of the chamber 410 equal to, substantially equal to, or similar to the atmospheric pressure, the gate valve 411 may be opened, and the display substrate D and the mask assembly 420 may be inserted into the chamber 410. In this case, at least one of the display substrate D and the mask assembly 420 may be moved by a robotic arm disposed outside the chamber 410 or a shuttle that is inserted into or withdrawn from the chamber 410. In this case, as Figure 25 shown, the display substrate D may include the substrate 100, a layer disposed below the pixel defining layer 119, the pixel defining layer 119, and pixel electrodes.

[0318] After the mask frame 421 and the display substrate D are respectively disposed on the second support member 440 and the first support member 430, the positions of the mask frame 421 and the display substrate D can be sensed by the vision unit 470 and can be arranged. Thereafter, the display substrate D and the mask frame 421 are brought close to each other, and then the display substrate D and the mask frame 421 are brought into close contact with each other by the magnetic force generator 460.

[0319] When the deposition source 450 emits deposition material, the deposition material can be deposited on the display substrate D via the first opening 422a and the second opening 422b of the mask sheet 422 and can form a pattern. In this case, the deposition material can be deposited on the display substrate D, and at least one layer among the intermediate layers can be formed.

[0320] In this case, the deposition material that has passed through the first opening 422a and the second opening 422b of the mask sheet 422 can be deposited in the first display region DA1 and the second display region DA2 of the display substrate D. Therefore, at least one intermediate layer can be formed in the first display region DA1 and the second display region DA2. Hereinafter, for ease of description, the case of forming the second main emission layer 222b-2 of the second main sub-pixel Pm2 and the second auxiliary emission layer 222b'-2 of the second auxiliary sub-pixel Pa2 by the apparatus 400 will be described in more detail below.

[0321] Specifically, the deposition material passing through the first opening 422a can be deposited on the adjacent second auxiliary pixel electrodes 221'-2. In this case, the deposition material can also be deposited on the pixel defining layer 119 disposed between the adjacent second auxiliary pixel electrodes 221'-2, thereby forming a single second auxiliary emission layer 222b'-2 integrally formed on the adjacent second auxiliary pixel electrodes 221'-2.

[0322] The second main emission layer 222b-2 can be formed on the second main pixel electrode 221-2 while the above operation is being performed. In this case, the second main emission layer 222b-2 and the second auxiliary emission layer 222b'-2 can be separated from each other.

[0323] When the above process is completed, the display substrate D can be transported out of the chamber 410 or can be moved to another place in the chamber 410 so that another layer can be formed on the display substrate D.

[0324] In addition to the above process, the first main emission layer and the first auxiliary emission layer can be formed concurrently (e.g., simultaneously), and the third main emission layer and the third auxiliary emission layer can be formed concurrently (e.g., simultaneously). Thereafter, the second functional layer, the counter electrode, etc. can be formed concurrently (e.g., simultaneously).

[0325] In this case, the manufacturing method described above is only one embodiment, and in the case of forming the main emission layer and the auxiliary emission layer, deposition materials that achieve or provide the same color can be deposited in various suitable orders.

[0326] Therefore, the device 400 can form an intermediate layer with an exact pattern in the first display area DA1 and the second display area DA2. The device 400 can also form an intermediate layer with a pattern that is almost the same as the design pattern in the first display area DA1 or the second display area DA2.

[0327] As described above, since multiple auxiliary sub-pixels that emit light of the same color among the auxiliary sub-pixels in the second display area can share certain layers (for example, the intermediate layer), this embodiment can provide a display device that can ensure the largest possible transmission area.

[0328] This embodiment can provide a display device that reduces noise during the operation of optical elements and the like arranged in the second display area.

[0329] It should be understood that the embodiments described herein should be considered only in a descriptive sense and not for purposes of limitation. The description of features or aspects within each embodiment should generally be considered available for other similar features or aspects in other embodiments. Although one or more embodiments have been described with reference to the accompanying drawings, those of ordinary skill in the art will understand that various changes in form and detail can be made therein without departing from the spirit and scope as defined by the claims and their equivalents.

Claims

1. A display device, the display device comprising: a substrate; a first display area, in which a plurality of main sub-pixels are located on the substrate; and a second display area, a basic unit is arranged in the second display area, the basic unit includes an auxiliary light-emitting area and a transmissive part, in the auxiliary light-emitting area, a plurality of auxiliary sub-pixels are located on the substrate, wherein each of the plurality of auxiliary sub-pixels includes a pixel electrode located on the substrate, an intermediate layer having an emission layer located on the pixel electrode, and a counter electrode located on the intermediate layer, wherein the emission layers of the intermediate layers of the auxiliary sub-pixels that emit light of the same color among the plurality of auxiliary sub-pixels are connected to each other in the auxiliary light-emitting area and not in the transmissive part.

2. The display device according to claim 1, wherein, The plurality of auxiliary sub-pixels are arranged in a strip structure.

3. The display device according to claim 1, wherein, The plurality of auxiliary sub-pixels are arranged in an RGBG Pentile matrix structure.

4. The display device according to claim 1, the display device further comprising an inorganic insulating layer located on the substrate, Among them, the inorganic insulating layer includes an opening corresponding to the transmissive part.

5. The display device according to claim 1, wherein, The counter electrode is integrally provided in the plurality of main sub-pixels in the first display area and the plurality of auxiliary sub-pixels in the second display area, and includes an opening corresponding to the transmissive part.

6. The display device according to claim 1, wherein, The plurality of auxiliary sub-pixels include: a first auxiliary sub-pixel for emitting light of a first color; and a plurality of second auxiliary sub-pixels for emitting light of a second color, wherein the distance between the first auxiliary sub-pixel and each second auxiliary sub-pixel among the plurality of second auxiliary sub-pixels is different from the distance between adjacent second auxiliary sub-pixels among the plurality of second auxiliary sub-pixels.

7. The display device according to claim 1, wherein, The intermediate layer further includes an organic functional layer.

8. The display device according to claim 1, wherein, The plurality of auxiliary sub-pixels include: a plurality of first auxiliary sub-pixels for emitting light of a first color; and a plurality of second auxiliary sub-pixels for emitting light of a second color, wherein at least two second auxiliary sub-pixels among the plurality of second auxiliary sub-pixels are between adjacent first auxiliary sub-pixels among the plurality of first auxiliary sub-pixels.

9. A display device, the display device comprising: a substrate, a first display area and a second display area are arranged on the substrate, main sub-pixels are arranged in the first display area, and the second display area includes an auxiliary light-emitting area and a transmissive part; a first auxiliary sub-pixel arranged in the auxiliary light-emitting area, the first auxiliary sub-pixel is used for emitting light of a first color and includes a first auxiliary pixel electrode and a first auxiliary intermediate layer; a plurality of second auxiliary sub-pixels spaced apart from each other in the auxiliary light-emitting area and used for emitting light of a second color, each second auxiliary sub-pixel among the plurality of second auxiliary sub-pixels includes a second auxiliary pixel electrode and a second auxiliary intermediate layer; and a counter electrode integrally arranged in the auxiliary light-emitting area, Among them, at least two of the plurality of second auxiliary sub-pixels share the second auxiliary intermediate layer, and the shared second auxiliary intermediate layer is not disposed in the transmissive portion.

10. The display device according to claim 9, wherein the display device further comprises a functional layer between the second auxiliary pixel electrode and the counter electrode. Among them, The functional layer corresponds to the transmissive portion.

11. The display device according to claim 9, wherein the display device further comprises an inorganic insulating layer on the substrate. Among them, The inorganic insulating layer includes an opening corresponding to the transmissive portion.

12. The display device according to claim 9, wherein, The first display region and the second display region are sealed by a packaging substrate facing the substrate.

13. The display device according to claim 9, wherein the display device further comprises a thin film encapsulation layer, and the thin film encapsulation layer includes a first inorganic encapsulation layer, an organic encapsulation layer, and a second inorganic encapsulation layer sequentially disposed on the counter electrode.

14. The display device according to claim 9, wherein, The length direction of the first auxiliary sub-pixel is different from the length direction of the second auxiliary sub-pixel among the plurality of second auxiliary sub-pixels.

15. The display device according to claim 9, wherein, The length direction of the first auxiliary sub-pixel is parallel to the length direction of the second auxiliary sub-pixel among the plurality of second auxiliary sub-pixels.

16. The display device according to claim 9, wherein the display device further comprises a third auxiliary sub-pixel disposed in the auxiliary light-emitting region, the third auxiliary sub-pixel being configured to emit light of a third color and including a third auxiliary pixel electrode and a third auxiliary intermediate layer. Among them, The first auxiliary sub-pixel, the second auxiliary sub-pixel, and the third auxiliary sub-pixel are arranged in an RGBG Pentile matrix structure.

17. The display device according to claim 9, wherein the display device further comprises a plurality of first auxiliary sub-pixels including the first auxiliary sub-pixel. Among them, At least two of the plurality of second auxiliary sub-pixels are between adjacent first auxiliary sub-pixels among the plurality of first auxiliary sub-pixels.

18. The display device according to claim 9, wherein the display device further comprises a plurality of first auxiliary sub-pixels including the first auxiliary sub-pixel. Among them, At least two of the plurality of first auxiliary sub-pixels share the first auxiliary intermediate layer.

19. A display device, the display device comprising: a substrate, a first display region and a second display region are disposed on the substrate, main sub-pixels are disposed in the first display region, the second display region includes a plurality of basic units arranged repeatedly, and each of the plurality of basic units includes an auxiliary light-emitting region and a plurality of transmissive portions disposed around the one auxiliary light-emitting region and not including sub-pixels; and a plurality of auxiliary sub-pixels, disposed in each auxiliary light-emitting region, each of the plurality of auxiliary sub-pixels including a pixel electrode and an intermediate layer. Among them, in each auxiliary light-emitting region, the plurality of auxiliary sub-pixels include at least two auxiliary pixels configured to emit light of the same color. Among them, in each auxiliary light-emitting region, the intermediate layers of at least two auxiliary sub-pixels that emit light of the same color among the plurality of auxiliary sub-pixels are connected to each other, and Among them, the auxiliary sub-pixels including the intermediate layers connected to each other emit at least one of blue light, green light, and red light.

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