Display device

Abstract

A display device is provided. The display device includes a substrate including a first display area and a second display area, a main sub-pixel located in the first display area, and a base unit located in the second display area, the base unit including an auxiliary sub-pixel and a transmissive portion. A pixel layout of the auxiliary sub-pixel is different from a pixel layout of the main sub-pixel, and a size of a light emitting area of a first auxiliary sub-pixel among the auxiliary sub-pixels is greater than a size of a light emitting area of a first main sub-pixel among the main sub-pixels, the first main sub-pixel exhibiting a color identical to a color of the first auxiliary sub-pixel.

Description

[0001] This application claims priority and benefit to Korean Patent Application No. 10-2019-0145399, filed on November 13, 2019, with the Korean Intellectual Property Office, the entire disclosure of which is incorporated herein by reference. Technical Field

[0002] One or more aspects of an embodiment relate to a display device. Background Technology

[0003] The applications of display devices have become increasingly diversified recently. Furthermore, their range of uses has expanded as display devices have become thinner and lighter.

[0004] Given that display devices can be utilized in various ways, various methods can be used to design the shape of display devices, and functions that can be connected to or linked to display devices can be added.

[0005] The information disclosed in this background section is intended to enhance the understanding of the background technology of this disclosure, and therefore may contain information that does not constitute prior art. Summary of the Invention

[0006] One or more exemplary embodiments of this disclosure relate to a display device including a first display area as a main display area and a second display area in which optical elements, etc., may be arranged. However, this disclosure is not limited thereto.

[0007] Additional aspects and features will be set forth in part in the description which follows, and will be apparent in part from the description, or may be learned by practicing one or more exemplary embodiments of this disclosure.

[0008] According to one or more exemplary embodiments of this disclosure, a display device includes: a substrate including a first display area and a second display area; a main sub-pixel located in the first display area; and a basic unit located in the second display area, the basic unit including an auxiliary sub-pixel and a transmissive portion. The pixel layout of the auxiliary sub-pixel differs from the pixel layout of the main sub-pixel, and the size of the light-emitting area of ​​a first auxiliary sub-pixel is larger than the size of the light-emitting area of ​​a first main sub-pixel, the first main sub-pixel displaying the same color as the first auxiliary sub-pixel.

[0009] In the example embodiment, the main sub-pixels can be arranged in a pentile matrix structure, and the auxiliary sub-pixels can be arranged in an S-stripe structure.

[0010] In an example embodiment, a corresponding unit including a main sub-pixel and having the same area as the basic unit may be located in the first display area, and the sum of the light-emitting areas of one or more first auxiliary sub-pixels included in the basic unit may be 0.5 to 1 times the sum of the light-emitting areas of the first main sub-pixels included in the main sub-pixels of the corresponding unit.

[0011] In an example embodiment, the first auxiliary sub-pixel and the first primary sub-pixel can be configured to emit blue light.

[0012] In an example embodiment, the area occupied by the transmissive portion in the basic unit may be approximately 3 / 4 of the area of ​​the basic unit.

[0013] In an example embodiment, auxiliary subpixels may form groups of pixels spaced apart from each other within a basic unit.

[0014] In the example embodiment, the main sub-pixels can be arranged in a pentile matrix structure, and the auxiliary sub-pixels can be arranged in a stripe structure.

[0015] In the example embodiment, the main sub-pixels can be arranged in an RGBG pentile matrix structure, and the auxiliary sub-pixels can be arranged in an RBGB pentile matrix structure.

[0016] In an example embodiment, the display device may further include an inorganic insulating layer located on a substrate, and the inorganic insulating layer may have an opening corresponding to the transmissive portion.

[0017] In an example embodiment, the counter electrode covering the main sub-pixel and the auxiliary sub-pixel can extend into the first display area and the second display area, and the counter electrode is integrally formed and has an opening corresponding to the transmissive portion.

[0018] According to one or more exemplary embodiments of this disclosure, a display device includes: a substrate including a first display area and a second display area, the first display area including a main sub-pixel, and the second display area including an auxiliary sub-pixel and a transmissive portion; a first main sub-pixel among the main sub-pixels including a first pixel electrode and a first emitting layer; a first auxiliary sub-pixel among the auxiliary sub-pixels including a second pixel electrode and a second emitting layer, the first auxiliary sub-pixel displaying the same color as the first main sub-pixel; and a counter electrode covering the first display area and the second display area, the counter electrode being integrally formed. The pixel layout structure of the auxiliary sub-pixel differs from the pixel layout structure of the main sub-pixel, and the size of the light-emitting area of ​​the first auxiliary sub-pixel is larger than the size of the light-emitting area of ​​the first main sub-pixel.

[0019] In an example embodiment, the display device may further include a functional layer located between the first pixel electrode and the second pixel electrode and the counter electrode, and a portion of the functional layer may be positioned to correspond to the transmissive portion.

[0020] In an example embodiment, the display device may further include a pixel defining layer having a first opening and a second opening that expose the central portions of a first pixel electrode and a second pixel electrode, respectively, and the light-emitting area of ​​a first main sub-pixel may be defined by the first opening, and the light-emitting area of ​​a first auxiliary sub-pixel may be defined by the second opening.

[0021] In an example embodiment, the display device may further include an inorganic insulating layer located on a substrate, and the inorganic insulating layer may have an opening corresponding to the transmissive portion.

[0022] In an example embodiment, the first display area and the second display area can be sealed by a packaging substrate facing the substrate.

[0023] In an example embodiment, 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 sequentially located on the counter electrode.

[0024] In the example embodiment, the main sub-pixels can be arranged in a pentile matrix structure, and the auxiliary sub-pixels can be arranged in an S-stripe structure.

[0025] In an example embodiment, the first auxiliary sub-pixel and the first primary sub-pixel can be configured to emit blue light.

[0026] In the example embodiment, the main sub-pixels can be arranged in a pentile matrix structure, and the auxiliary sub-pixels can be arranged in a stripe structure.

[0027] In the example embodiment, the main sub-pixels can be arranged in an RGBG pentile matrix structure, and the auxiliary sub-pixels can be arranged in an RBGB pentile matrix structure. Attached Figure Description

[0028] The above and other aspects and features of this disclosure will become more apparent to those skilled in the art from the following detailed description of exemplary embodiments with reference to the accompanying drawings, in which:

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

[0030] Figure 2 This is a schematic cross-sectional view of a display device according to an embodiment;

[0031] Figure 3AThis is a schematic plan view of a display device according to an embodiment;

[0032] Figure 3B This is a schematic plan view of a portion of a display device according to another embodiment;

[0033] Figure 4A This is an equivalent circuit diagram of pixels that can be arranged in the display area and / or sensor area of ​​a display device according to an embodiment;

[0034] Figure 4B It is an equivalent circuit diagram of pixels that can be arranged in the display area and / or sensor area of ​​a display device according to another embodiment;

[0035] Figure 5 It is a schematic plan view showing the arrangement of sub-pixels and transmissive portions in the first display area and the second display area;

[0036] Figure 6 It is according to the embodiment along Figure 5 A schematic cross-sectional view of the display device taken by lines I-I' and II-II';

[0037] Figure 7 According to another embodiment, along Figure 5 A schematic cross-sectional view of the display device taken by lines I-I' and II-II';

[0038] Figure 8 According to another embodiment, along Figure 5 A schematic cross-sectional view of the display device taken by lines I-I' and II-II';

[0039] Figure 9 This is a schematic plan view illustrating the arrangement of sub-pixels and transmissive portions in a first display area and a second display area according to another embodiment;

[0040] Figure 10 This is a schematic plan view illustrating the arrangement of sub-pixels and transmissive portions in a first display area and a second display area according to another embodiment;

[0041] Figure 11 This is a schematic plan view illustrating the arrangement of sub-pixels and transmissive portions in a first display area and a second display area according to another embodiment; and

[0042] Figure 12 This is a schematic plan view illustrating the arrangement of sub-pixels and transmissive portions in a first display area and a second display area according to another embodiment. Detailed Implementation

[0043] In the following description, exemplary embodiments will be illustrated in more detail with reference to the accompanying drawings, in which the same reference numerals refer to the same elements throughout. However, this disclosure may be implemented in a variety of different forms and should not be construed as being limited to the embodiments shown herein. Rather, these embodiments are provided as examples so that this disclosure will be thorough and complete, and will fully convey to those skilled in the art the aspects and features of this disclosure. Therefore, processes, elements, and techniques that are not essential for a person of ordinary skill in the art to fully understand the aspects and features of this disclosure may not be described. Furthermore, when specific embodiments may be implemented differently, the specific process sequence may differ from the described process sequence. For example, two consecutively described processes may be performed simultaneously or substantially simultaneously, or the two consecutively described processes may be performed in the reverse order of their description. Unless otherwise stated, the same reference numerals denote the same elements throughout the drawings and written description, and therefore their description need not be repeated.

[0044] In the accompanying drawings, for clarity, the relative dimensions of elements, layers, and regions may be exaggerated and / or simplified. For ease of interpretation, spatial relative terms such as “below,” “under,” “below,” “below,” “above,” “above,” etc., are used herein to describe the relationship between one element or feature and another (or more) elements or features as shown in the figures. It will be understood that, in addition to the orientations depicted in the figures, the spatial relative terms are also intended to cover different orientations of the device in use or operation. For example, if the device in the figures is flipped, an element described as “below,” “under,” or “below” other elements or features would be positioned “above” said other elements or features. Therefore, the example terms “below” and “below” can include both “above” and “below” orientations. The device may be otherwise positioned (e.g., rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein should be interpreted accordingly.

[0045] It will be understood that although the terms “first,” “second,” “third,” etc., may be used herein to describe various elements, components, regions, layers, and / or parts, these elements, components, regions, layers, and / or parts should not be limited by these terms. These terms are used to distinguish one element, component, region, layer, or part from another element, component, region, layer, or part. Therefore, a first element, component, region, layer, or part described below may be referred to as a second element, component, region, layer, or part without departing from the spirit and scope of this disclosure.

[0046] It will be understood that when an element, layer, or component (such as a membrane, region, plate, etc.) is referred to as being "on," "connected to," or "bonded to" another element, layer, or component, the element, layer, or component may be directly on, directly connected to, or directly bonded to the other element, layer, or component, or one or more intermediate elements, layers, or components may exist. Furthermore, it will be understood that when an element, layer, or component is referred to as being "between" two elements, layers, or components, the element, layer, or component may be the only element, layer, or component between the two elements, layers, or components, or one or more intermediate elements, layers, or components may exist.

[0047] The terminology used herein is for the purpose of describing particular embodiments and is not intended to be limiting of this disclosure. As used herein, the singular forms “a” and “an” are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will also be understood that when the terms “comprising,” “including,” “having,” and variations thereof are used in this specification, they indicate the presence of the stated features, integrals, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or groups thereof. As used herein, the term “and / or” includes any and all combinations of one or more of the associated listed items. For example, “A and / or B” means A or B or A and B. When a statement such as “at least one of…” follows a list of elements, the statement modifies the entire list of elements, not individual elements within the list. For example, the statement “at least one of a, b, and c” may indicate only a, only b, only c, both a and b, both a and c, both b and c, all a, b, and c, or variations thereof.

[0048] As used herein, the terms “substantially,” “about,” and similar terms are used as approximate terms rather than terms of degree and are intended to account for inherent biases in measured or calculated values ​​that will be recognized by one of ordinary skill in the art. Furthermore, when describing embodiments of this disclosure, the use of “may” refers to “one or more embodiments of this disclosure.” As used herein, the term “use” and its variations may be considered synonymous with the term “utilize” and its variations, respectively.

[0049] Unless otherwise defined, all terms used herein (including technical and scientific terms) shall have the same meaning as commonly understood by one 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) shall be interpreted as having the meaning consistent with their meaning in the relevant field context and / or this specification, and shall not be interpreted in an idealized or overly formal sense, unless expressly defined herein.

[0050] Figure 1 This is a schematic perspective view of the display device 1 according to an embodiment.

[0051] Reference Figure 1 The display device 1 includes a first display area DA1 in which an image is implemented (e.g., where an image is displayed) and a non-display area NDA in which no image is implemented (e.g., where no image is displayed). The display device 1 can provide a main image by utilizing light emitted from a plurality of principal sub-pixels Pm arranged at (e.g., in or on) the first display area DA1.

[0052] Display device 1 includes a second display area DA2. The second display area DA2 may be an area in which components (such as sensors using infrared light, visible light, and / or sound) are arranged. This will be referred to below. Figure 2 A more detailed description follows. The second display area DA2 may include a transmissive portion TA, which is configured to allow light and / or sound emitted from the component toward the outside or traveling from the outside toward the component to be transmitted through the transmissive portion TA. According to an embodiment, when light is transmitted through the second display area DA2, the transmittance of the second display area DA2 may be about 30% or greater, for example, such as 50% or greater, 75% or greater, 80% or greater, 85% or greater, or 90% or greater.

[0053] According to an embodiment, a plurality of auxiliary sub-pixels Pa can be arranged at a second display area DA2 (e.g., in or on the second display area DA2), and an image (e.g., a specific image) can be provided using light emitted by the plurality of auxiliary sub-pixels Pa. The image provided by the second display area DA2 can be an auxiliary image, and therefore can have a lower resolution than the image provided by the first display area DA1. In other words, because the second display area DA2 includes a transmission portion TA that allows light and / or sound to be transmitted through the transmission portion TA, the number of auxiliary sub-pixels Pa arranged in the unit area at the second display area DA2 (e.g., in or on the second display area DA2) will be less than the number of principal sub-pixels Pm arranged in the unit area at the first display area DA1 (e.g., in or on the first display area DA1).

[0054] The second display area DA2 can be arranged on one side of the first display area DA1 (e.g., in one side of the first display area DA1 or on one side of the first display area DA1). For example, in an embodiment, such as Figure 1As shown, the second display area DA2 can be arranged above the first display area DA1 (e.g., in or above the first display area DA1), thus the second display area DA2 can be located between the non-display area NDA and the first display area DA1. However, this disclosure is not limited thereto, and various modifications can be made to the second display area DA2. For example, in another embodiment, the second display area DA2 can be surrounded by the first display area DA1 (e.g., around its periphery).

[0055] Although an organic light-emitting display is shown in the figures, and an illustrative example of an organic light-emitting display as a display device 1 will now be described in more detail, this disclosure is not limited thereto. For example, according to other embodiments, various suitable types of display devices (such as inorganic light-emitting displays, quantum dot light-emitting displays, etc.) can be used in display device 1.

[0056] Although Figure 1 The diagram illustrates a first display area DA1 with a rectangular shape in a plan view (e.g., a view taken from a plane parallel to or substantially parallel to the top surface of display device 1), such that a second display area DA2 can be arranged above the first display area DA1 (e.g., in the middle of or above the upper side of the first display area DA1), but the disclosure is not limited thereto. For example, the shape of the first display area DA1 in the plan view can be circular, elliptical, polygonal (such as a triangle or pentagon), etc. Furthermore, the second display area DA2 can be positioned within (e.g., inside) the first display area DA1, and / or can have various suitable shapes.

[0057] Figure 2 This is a schematic cross-sectional view of the display device 1 according to an embodiment, and can be viewed along... Figure 1 The cross section intercepted by line A-A' corresponds to the cross section.

[0058] Reference Figure 2 The display device 1 may include a display panel 10 containing display elements and a component 20 corresponding to the second display area DA2.

[0059] The display panel 10 may include a substrate 100, a display element layer 200 disposed on the substrate 100, and a thin-film encapsulation layer 300 disposed on the display element layer 200. The thin-film encapsulation layer 300 may be an encapsulation component that seals the display element layer 200. The display panel 10 may also include a lower protective film 175 disposed below the substrate 100.

[0060] Substrate 100 may comprise glass and / or polymeric resin. Examples of polymeric resins may include polyethersulfone, polyacrylate, polyetherimide, polyethylene naphthalate, polyethylene terephthalate, polyphenylene sulfide, polyarylate, polyimide, polycarbonate, and cellulose acetate propionate. Substrate 100 comprising polymeric resin may have flexible, rollable, and / or bendable properties. Substrate 100 may have a multilayer structure comprising, for example, layers containing one or more of the aforementioned polymeric resins and inorganic layers.

[0061] The display element layer 200 may include a circuit layer containing a first thin-film transistor TFT and a second thin-film transistor TFT', a main organic light-emitting diode OLED and an auxiliary organic light-emitting diode OLED' as display elements, and insulating layers IL and IL' located between the substrate 100 and the main organic light-emitting diode OLED and the auxiliary organic light-emitting diode OLED'.

[0062] A primary sub-pixel Pm, comprising a first thin-film transistor (TFT) and a primary organic light-emitting diode (OLED) connected to the first TFT, can be arranged at a first display area DA1 (e.g., in or on the first display area DA1). An auxiliary sub-pixel Pa, comprising a second TFT' and an auxiliary OLED' connected to the second TFT', can be arranged at a second display area DA2 (e.g., in or on the second display area DA2).

[0063] A transmissive portion TA, which may not have a display element disposed therein, may be disposed at the second display area DA2 (e.g., in or on the second display area DA2). The transmissive portion TA can be understood as allowing light / signal emitted by component 20 to pass through the transmissive portion TA and / or allowing light / signal to pass through the transmissive portion TA and be incident on the transmissive area of ​​component 20.

[0064] Component 20 may be located at the second display area DA2 (e.g., in or under the second display area DA2). Component 20 may be an electronic component (e.g., an electronic device) that utilizes light and / or sound. For example, component 20 may be a sensor that receives and utilizes light (e.g., an infrared sensor, a sensor that outputs and senses light and / or sound to measure distance or identify fingerprints, etc.), a light-emitting lamp (e.g., a small lamp), a sound-emitting speaker, etc. The light-utilizing electronic component may utilize light of various suitable wavelengths, such as visible light, infrared light, and / or ultraviolet light. Multiple components 20 may be arranged at the second display area DA2 (e.g., in or under the second display area DA2). For example, in one embodiment, both the light-emitting device and the light-receiving device of component 20 may be included in a single second display area DA2. In another embodiment, both the light-emitting portion and the light-receiving portion may be included in a single component 20.

[0065] The lower electrode layer BSM can be disposed at the second display area DA2 (e.g., in or on the second display area DA2). The lower electrode layer BSM can be disposed corresponding to the area below the second thin-film transistor TFT'. The lower electrode layer BSM can prevent or substantially prevent external light from reaching the auxiliary sub-pixel Pa, including the second thin-film transistor TFT', etc. For example, the lower electrode layer BSM can prevent or substantially prevent light emitted from component 20 from reaching the auxiliary sub-pixel Pa.

[0066] According to an embodiment, a static voltage or signal can be applied to the lower electrode layer BSM, thus the lower electrode layer BSM can prevent or substantially prevent pixel circuits from being damaged by electrostatic discharge.

[0067] The thin-film encapsulation layer 300 may include at least one inorganic encapsulation layer and at least one organic encapsulation layer. For example, Figure 2 The thin-film encapsulation layer 300 is shown to include a first inorganic encapsulation layer 310, a second inorganic encapsulation layer 330, and an organic encapsulation layer 320 between the first inorganic encapsulation layer 310 and the second inorganic encapsulation layer 330.

[0068] The first inorganic encapsulation layer 310 and the second inorganic encapsulation layer 330 may include at least one inorganic insulating material, such as alumina, titanium oxide, tantalum oxide, hafnium oxide, zinc oxide, silicon oxide, silicon nitride, silicon oxynitride, etc. The organic encapsulation layer 320 may include, for example, polymeric materials. Examples of polymeric materials may include, for example, acrylic resins, epoxy resins, polyimides, and polyethylene.

[0069] The lower protective film 175 may be attached to the lower surface of the substrate 100 and may support and / or 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, for example, polyethylene terephthalate (PET) or polyimide (PI).

[0070] The second display area DA2 can have a larger area than the area where the component 20 is arranged. Therefore, the area of ​​the opening 175OP included in the lower protective film 175 can be different from the area of ​​the second display area DA2 (e.g., they can be inconsistent). For example, the area of ​​the opening 175OP can be less than (e.g., it can be smaller than) the area of ​​the second display area DA2.

[0071] Multiple components 20 may be arranged at the second display area DA2 (e.g., in or below the second display area DA2). The multiple components 20 may perform different functions. For example, one of the multiple components 20 may be a camera, and another of the multiple components 20 may be an infrared sensor.

[0072] In embodiments, for example, various other layers, elements, components and / or assemblies such as input sensing elements for sensing touch input, anti-reflective elements including polarizers and / or delayers, color filters and / or black matrices, transparent windows, etc., may be arranged on the display panel 10.

[0073] According to an embodiment, the thin-film encapsulation layer 300 can be used as an encapsulation component for sealing the display element layer 200, but this disclosure is not limited thereto. For example, an encapsulation substrate that is connected to or attached to the substrate 100 by a sealant or glass frit can be used as a component for sealing the display element layer 200.

[0074] Figure 3A This is a schematic plan view of the display panel 10 according to an embodiment.

[0075] Reference Figure 3A The display panel 10 may include a first display area DA1 and a second display area DA2 (e.g., may be arranged in the first display area DA1 and the second display area DA2). The first display area DA1 includes a plurality of principal sub-pixels Pm. Each of the principal sub-pixels Pm may include a display element such as an organic light-emitting diode (OLED). Each of the principal sub-pixels Pm may emit light (e.g., red, green, blue, or white light) via the organic light-emitting diode. The first display area DA1 can be referenced above. Figure 2 The described encapsulation component is covered and protected from the effects of ambient air and / or moisture.

[0076] The second display area DA2 may be disposed on one side of the first display area DA1 (e.g., in or on one side of the first display area DA1), and a plurality of auxiliary sub-pixels Pa may be disposed in the second display area DA2 (e.g., in or on the second display area DA2). Each of the auxiliary sub-pixels Pa may include a display element such as an organic light-emitting diode (OLED). Each of the auxiliary sub-pixels Pa may emit light (e.g., red, green, blue, or white light) via the OLED. Transmissive portions TA may be disposed between the auxiliary sub-pixels Pa in the second display area DA2 (e.g., in or on the second display area DA2). At least one component 20 may be disposed at the lower part of the second display area DA2 of the display panel 10 (e.g., in or on the lower part of the second display area DA2). For example, the component 20 may be disposed below the substrate 100 in the second display area DA2 (e.g., in or below the second display area DA2), but this disclosure is not limited thereto.

[0077] According to an embodiment, a primary sub-pixel Pm and an auxiliary sub-pixel Pa may include pixel circuits (e.g., pixel circuit structures) that are the same or substantially the same as each other. However, this disclosure is not limited thereto. For example, in another embodiment, the primary sub-pixel Pm and the auxiliary sub-pixel Pa may include pixel circuits (e.g., different pixel circuit structures) that are different from each other. Because the second display area DA2 includes a transmissive portion TA, the second display area DA2 may have a lower (e.g., smaller) resolution than the first display area DA1.

[0078] Each of the primary sub-pixel Pm and the auxiliary sub-pixel Pa can be electrically connected to one or more external circuits arranged at the non-display area NDA (e.g., in or on the non-display area NDA). For example, the first scan drive circuit 110, the second scan drive circuit 120, the terminal 140, the data drive circuit 150, the first power line 160, and the second power line 170 can be arranged at the non-display area NDA (e.g., in or on the non-display area NDA).

[0079] The first scan driving circuit 110 can provide scan signals to at least some of the main sub-pixels Pm and auxiliary sub-pixels Pa via corresponding scan lines SL. The first scan driving circuit 110 can also provide light emission control signals to at least some of the main sub-pixels Pm and auxiliary sub-pixels Pa via corresponding light emission control lines EL. The second scan driving circuit 120 can be arranged on the opposite side of the first scan driving circuit 110, with the first display area DA1 located between the second scan driving circuit 120 and the first scan driving circuit 110. In this configuration, some of the main sub-pixels Pm and auxiliary sub-pixels Pa can be electrically connected to the first scan driving circuit 110 to receive scan signals and / or light emission control signals from it, and other pixels in the main sub-pixels Pm and auxiliary sub-pixels Pa can be electrically connected to the second scan driving circuit 120 to receive scan signals and / or light emission control signals from it. However, this disclosure is not limited thereto; for example, according to another embodiment, the second scan driving circuit 120 can be omitted (e.g., not included). In this case, the first scan driving circuit 110 can provide a scan signal to each of the main sub-pixel Pm and the auxiliary sub-pixel Pa via the corresponding scan line SL, and provide a light emission control signal to each of the main sub-pixel Pm and the auxiliary sub-pixel Pa via the corresponding light emission control line EL.

[0080] Terminal 140 may be disposed on one side of substrate 100. Terminal 140 may be exposed without being covered by an insulating layer and may be electrically connected to a printed circuit board (PCB). Terminal PCB-P of the PCB may be electrically connected to terminal 140 of display panel 10. The PCB may transmit signals and / or power from the controller to display panel 10. Control signals generated by the controller may be transmitted via the PCB to each of the first scan drive circuit 110 and the second scan drive circuit 120. The controller may provide first power (e.g., ...) to the first power line 160 and the second power line 170 via the first connection line 161 and the second connection line 171, respectively. Figure 4A and Figure 4B The first power supply voltage (ELVDD) and the second power (e.g., Figure 4A and Figure 4B The second power supply voltage ELVSS). The first power supply voltage ELVDD can be provided to each of the main sub-pixel Pm and the auxiliary sub-pixel Pa via the drive voltage line PL connected to the first power line 160, and the second power supply voltage ELVSS can be provided to the counter electrode of each of the main sub-pixel Pm and the auxiliary sub-pixel Pa connected to the second power line 170.

[0081] The data driving circuit 150 is electrically connected to the data line DL. The data signal of the data driving circuit 150 can be provided to each of the main sub-pixel Pm and the auxiliary sub-pixel Pa via the corresponding connection line 151 connected to the terminal 140 and the corresponding data line DL connected to the corresponding connection line 151. Figure 3A The arrangement of the data driving circuit 150 on a printed circuit board (PCB) is shown. However, this disclosure is not limited thereto, and according to 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 between the terminal 140 and the first power line 160.

[0082] The first power line 160 may include a first sub-wire 162 and a second sub-wire 163 that both extend along the x-axis and are parallel to each other, with the first display area DA1 located between the first sub-wire 162 and the second sub-wire 163. The second power line 170 may partially surround the first display area DA1 (e.g., around the periphery of the first display area DA1) and may be in an annular shape with an open side.

[0083] Although Figure 3A The second display area DA2 is shown to be arranged on one side of the first display area DA1 (e.g., in one side of the first display area DA1 or on one side of the first display area DA1), but this disclosure is not limited thereto. For example, as Figure 3B As shown, the second display area DA2 can be included as a region corresponding to a sensor or the like arranged in the second display area DA2 (e.g., below the substrate 100 at the second display area DA2). In this case, the second display area DA2 can be arranged within (e.g., inside) the first display area DA1 and can be surrounded by the first display area DA1 (e.g., the first display area DA1 is around the periphery of the second display area DA2).

[0084] Figure 4A and Figure 4B It is an equivalent circuit diagram that may include a primary sub-pixel Pm and / or an auxiliary sub-pixel Pa in the display panel 10 according to one or more embodiments.

[0085] Reference Figure 4A Each sub-pixel Pm and / or Pa includes a pixel circuit PC connected to the scan line SL and the data line DL, and an organic light-emitting diode (OLED) connected to the pixel circuit PC.

[0086] The pixel circuit PC includes a driving thin-film transistor (TFT) T1, a switching TFT T2, and a storage capacitor Cst. The switching TFT T2 is connected to the scan line SL and the data line DL, and transmits the data signal Dm received via the data line DL to the driving TFT T1 according to the scan signal Sn received via the scan line SL.

[0087] The storage capacitor Cst is connected to the switch TFT T2 and the drive voltage line PL. The storage capacitor Cst stores the voltage corresponding to the difference between the voltage received from the switch TFT T2 and the first power supply voltage ELVDD (e.g., which may be referred to as the drive voltage) supplied to the drive voltage line PL.

[0088] The driving TFT T1 is connected to the driving voltage line PL and the storage capacitor Cst. The driving TFT T1 can control the driving current flowing from the driving voltage line PL to the organic light-emitting diode (OLED) based on the voltage value stored in the storage capacitor Cst. The OLED can then emit light with the desired brightness due to the driving current.

[0089] Although Figure 4A The illustration shows a pixel circuit PC comprising two TFTs T1 and T2 and a storage capacitor Cst, but this disclosure is not limited thereto. For example, as Figure 4B As shown, the pixel circuit PC may include seven TFTs T1 to T7 and a storage capacitor Cst.

[0090] Reference Figure 4B Each sub-pixel Pm and / or 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 multiple TFTs T1 to T7 and a storage capacitor Cst. The TFTs and storage capacitor may be connected to signal lines SL, SL-1, EL and DL, initialization voltage line VL, and drive voltage line PL.

[0091] Although Figure 4B The diagram shows each sub-pixel Pm and / or Pa connected to signal lines SL, SL-1, EL and DL, initialization voltage line VL, and drive voltage line PL, but this disclosure is not limited thereto. For example, according to another embodiment, at least one of the signal lines SL, SL-1, EL and DL, the initialization voltage line VL, and the drive voltage line PL may be shared by adjacent pixels (e.g., by neighboring pixels).

[0092] Multiple TFTs may include a driving TFT T1, a switching TFT T2, a compensation TFT T3, a first initialization TFT T4, an operation control TFT T5, a light emission control TFT T6, and a second initialization TFT T7.

[0093] Signal lines SL, SL-1, EL, and DL may include a scan line SL for transmitting the scan signal Sn, a previous scan line SL-1 for transmitting the previous scan signal Sn-1 to the second initialization TFT T7, an emission control line EL for transmitting the emission control signal En to the operation control TFT T5 and the emission control TFT T6, and a data line DL that intersects with the scan line SL and transmits the data signal Dm. The driving voltage line PL transmits the driving voltage ELVDD to the driving TFT T1, and the initialization voltage line VL transmits the initialization voltage Vint that initializes the driving TFT T1 and the pixel electrodes of the organic light-emitting diode (OLED).

[0094] The driving TFT 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 TFT T5, and a driving drain electrode D1 electrically connected to the pixel electrode of the organic light-emitting diode OLED via the light-emitting control TFT T6. The driving TFT T1 receives a data signal Dm according to the switching operation of the switching TFT T2 and supplies a driving current I to the organic light-emitting diode OLED. OLED .

[0095] The switching TFT 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 TFT T1 and connected to the driving voltage line PL via the operation control TFT T5. The switching TFT T2 is turned on according to the scan signal Sn received via the scan line SL and performs a switching operation to transmit the data signal Dm received from the data line DL to the driving source electrode S1 of the driving TFT T1.

[0096] The compensation TFT T3 includes a compensation gate electrode G3 connected to the scan line SL and a compensation source electrode S3 connected to the driving drain electrode D1 of the driving TFT T1 and connected to the pixel electrode of the organic light-emitting diode (OLED) via the light-emitting control TFT T6. The compensation drain electrode D3 of the compensation TFT T3 is connected to the first electrode Cst1 of the storage capacitor Cst, the first initialization drain electrode D4 of the first initialization TFT T4, and the driving gate electrode G1 of the driving TFT T1. The compensation TFT T3 is turned on according to the scan signal Sn received via the scan line SL, and electrically connects the driving gate electrode G1 and the driving drain electrode D1 of the driving TFT T1 to each other, such that the driving TFT T1 is diode-connected.

[0097] The first initialization TFT T4 includes a first initialization gate electrode G4 connected to the previous scan line SL-1 and a second initialization drain electrode D7 connected to the second initialization TFT T7 and a first initialization source electrode S4 connected to the initialization voltage line VL. The first initialization drain electrode D4 of the first initialization TFT T4 is connected to the first electrode Cst1 of the storage capacitor Cst, the compensation drain electrode D3 of the compensation TFT T3, and the driving gate electrode G1 of the driving TFT T1. The first initialization TFT T4 is turned on according to the previous scan signal Sn-1 received via the previous scan line SL-1, and transmits an initialization voltage Vint to the driving gate electrode G1 of the driving TFT T1 to initialize the voltage of the driving gate electrode G1 of the driving TFT T1.

[0098] The operation control TFT T5 includes an operation control gate electrode G5 connected to the light emission control line EL, an operation control source electrode S5 connected to the drive voltage line PL, and an operation control drain electrode D5 connected to the drive source electrode S1 connected to the drive TFT T1 and the switch drain electrode D2 connected to the switch TFT T2.

[0099] The light-emitting control TFT T6 includes a light-emitting control gate electrode G6 connected to the light-emitting control line EL and a light-emitting control source electrode S6 connected to the driving drain electrode D1 of the driving TFT T1 and the compensation source electrode S3 of the compensation TFT T3. The light-emitting control drain electrode D6 of the light-emitting control TFT T6 can be electrically connected to the second initialization source electrode S7 of the second initialization TFT T7 and electrically connected to the pixel electrode of the organic light-emitting diode OLED.

[0100] The operation control TFT T5 and the light emission control TFT T6 can be turned on concurrently (e.g., simultaneously) according to the light emission control signal En received via the light emission control line EL. Therefore, the driving voltage ELVDD can be transmitted to the organic light emission diode OLED, causing the driving current I... OLED It can flow in organic light-emitting diodes (OLEDs).

[0101] The second initialization TFT 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 light emission control TFT T6 and the pixel electrode of the organic light emission diode OLED, and a second initialization drain electrode D7 connected to the first initialization source electrode S4 and the initialization voltage line VL. The second initialization TFT T7 is turned on according to the previous scan signal Sn-1 received via the previous scan line SL-1, and initializes the pixel electrode of the organic light emission diode OLED.

[0102] Although Figure 4BThe illustration shows a first initialization TFT T4 and a second initialization TFT T7 connected to a previous scan line SL-1, but this disclosure is not limited thereto. For example, according to another embodiment, the first initialization TFT T4 may be connected to the previous scan line SL-1 to operate according to a previous scan signal Sn-1, and the second initialization TFT T7 may be connected to a separate signal line (e.g., a subsequent scan line) to operate according to a signal transmitted to that separate signal line.

[0103] 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 second power supply voltage ELVSS. Therefore, the OLED can receive a driving current I from the driving TFT T1. OLED And it can be based on the driving current I OLED It emits light, thereby displaying the image.

[0104] Although Figure 4B The illustration shows that each of the compensation TFT T3 and the first initialization TFT T4 has dual gate electrodes, but this disclosure is not limited thereto. For example, in another embodiment, at least one (e.g., each) of the compensation TFT T3 and the first initialization TFT T4 may have a single gate electrode.

[0105] According to embodiments, the primary sub-pixel Pm and the auxiliary sub-pixel Pa may include pixel circuit PC structures that are identical or substantially identical to each other. However, this disclosure is not limited thereto, and the primary sub-pixel Pm and the auxiliary sub-pixel Pa may include pixel circuit PCs having structures that are different from each other. For example, in this case, in an embodiment, the primary sub-pixel Pm may employ... Figure 4B The pixel circuit PC, while the auxiliary sub-pixel Pa can be adopted Figure 4A The pixel circuit PC.

[0106] Figure 5 It is a schematic plan view of the arrangement of the light-emitting and transmissive regions of sub-pixels arranged in the first display area DA1 and the second display area DA2 (e.g., in or on the first display area DA1 and the second display area DA2). Figure 6 It is along Figure 5 A schematic cross-sectional view of display device 1 taken by lines I-I' and II-II'.

[0107] Reference Figure 5In the display device 1 according to the embodiment, a first main sub-pixel Pm1, a second main sub-pixel Pm2 and a third main sub-pixel Pm3 are arranged in a first display area DA1 (e.g., in or on the first display area DA1), and a first auxiliary sub-pixel Pa1, a second auxiliary sub-pixel Pa2, a third auxiliary sub-pixel Pa3 and a transmissive portion TA are arranged in a second display area DA2 (e.g., in or on the second display area DA2).

[0108] According to an embodiment, the first principal sub-pixel Pm1, the second principal sub-pixel Pm2, and the third principal sub-pixel Pm3 arranged at the first display area DA1 (e.g., in or on the first display area DA1) may have a different pixel layout structure than the pixel layout structure of the first auxiliary sub-pixel Pa1, the second auxiliary sub-pixel Pa2, and the third auxiliary sub-pixel Pa3 arranged at the second display area DA2 (e.g., in or on the second display area DA2). As used herein, the pixel layout structure may be based on the light-emitting area of ​​each sub-pixel. The light-emitting area of ​​a sub-pixel may be defined by an opening in a pixel-defining layer, which will be described in more detail below.

[0109] like Figure 5 As shown, the first principal sub-pixel Pm1, the second principal sub-pixel Pm2, and the third principal sub-pixel Pm3 can be arranged in a pentile structure at the first display area DA1 (e.g., in or on the first display area DA1). The first principal sub-pixel Pm1, the second principal sub-pixel Pm2, and the third principal sub-pixel Pm3 can represent different colors from each other. For example, the first principal sub-pixel Pm1, the second principal sub-pixel Pm2, and the third principal sub-pixel Pm3 can represent red, green, and blue, respectively.

[0110] Therefore, multiple first principal sub-pixels Pm1 and multiple third principal sub-pixels Pm3 can alternate with each other at the first row 1N (e.g., in or on the first row 1N). Multiple second principal sub-pixels Pm2 can be spaced apart from each other (e.g., spaced apart by a predetermined distance) at the second row 2N adjacent to the first row 1N (e.g., in or on the second row 2N). Multiple third principal sub-pixels Pm3 and multiple first principal pixels Pm1 can alternate with each other at the third row 3N adjacent to the second row 2N (e.g., in or on the third row 3N). Multiple second principal pixels Pm2 can be spaced apart from each other (e.g., spaced apart by a predetermined distance) at the fourth row 4N adjacent to the third row 3N (e.g., in or on the fourth row 4N). In an embodiment, this pixel layout from the first row 1N to the fourth row 4N can be repeated up to the Nth row (where N is a natural number). In this case, the third principal sub-pixel Pm3 and the first principal sub-pixel Pm1 can be larger than the second principal sub-pixel Pm2 (for example, they can have a larger area than the second principal sub-pixel Pm2).

[0111] A plurality of first principal sub-pixels Pm1 and third principal sub-pixels Pm3 at the first row 1N (e.g., in or on the first row 1N) and a plurality of second principal sub-pixels Pm2 at the second row 2N (e.g., in or on the second row 2N) can be arranged in a zigzag pattern. Therefore, the first principal sub-pixels Pm1 and third principal sub-pixels Pm3 can alternate with each other at the first column 1M (e.g., in or on the first column 1M), and the plurality of second principal sub-pixels Pm2 can be spaced apart from each other (e.g., spaced apart by a predetermined distance) at the second column 2M adjacent to the first column 1M (e.g., in or on the second column 2M). Furthermore, the third principal sub-pixel Pm3 and the first principal sub-pixel Pm1 can alternate with each other at the third column 3M adjacent to the second column 2M (e.g., in or on the third column 3M), and multiple second principal sub-pixels Pm2 can be spaced apart from each other (e.g., spaced apart by a predetermined distance) at the fourth column 4M adjacent to the third column 3M (e.g., in or on the fourth column 4M). In an embodiment, this pixel layout from the first column 1M to the fourth column 4M can be repeated up to the Mth column (where M is a natural number).

[0112] In other words, the first principal sub-pixel Pm1 can be placed at the first and third facing vertices of the four vertices of the virtual quadrilateral VS, which has its center point located at the second principal sub-pixel Pm2, and the third principal sub-pixel Pm3 can be placed at the other remaining vertices, such as the second and fourth facing vertices of the virtual quadrilateral VS. The virtual quadrilateral VS can have a rectangular shape, a rhombus shape, a square shape, etc.

[0113] In this context, the pixel layout structure can be referred to as a pentile matrix. High resolution can be achieved with a small number of pixels by expressing the colors of the pixels in the pentile matrix through sharing (e.g., combining) the colors of their neighboring pixels.

[0114] Auxiliary subpixels Pa1, Pa2, and Pa3 can be arranged in an S-stripe layout at the second display area DA2 (e.g., in or on the second display area DA2). The first auxiliary subpixel Pa1, the second auxiliary subpixel Pa2, and the third auxiliary subpixel Pa3 can represent different colors from each other. For example, the first auxiliary subpixel Pa1, the second auxiliary subpixel Pa2, and the third auxiliary subpixel Pa3 can represent red, green, and blue, respectively.

[0115] In other words, the first auxiliary sub-pixel Pa1 and the second auxiliary sub-pixel Pa2 can alternate with each other at the first column 1I (e.g., in or on the first column 1I), and the third auxiliary sub-pixel Pa3 can be arranged at the second column 2I adjacent to the first column 1I (e.g., in or on the second column 2I). A third auxiliary sub-pixel Pa3 can correspond to a first auxiliary sub-pixel Pa1 and a second auxiliary sub-pixel Pa2, and the third auxiliary sub-pixel Pa3 can be larger than the first auxiliary sub-pixel Pa1 and the second auxiliary sub-pixel Pa2 (e.g., it can have a larger area than the first auxiliary sub-pixel Pa1 and the second auxiliary sub-pixel Pa2). In other words, the first auxiliary sub-pixel Pa1 and the second auxiliary sub-pixel Pa2 can both extend relatively long in the x-axis direction, while the third auxiliary sub-pixel Pa3 can both extend relatively long in the y-axis direction. Therefore, the length of each of the third auxiliary sub-pixels Pa3 in the y-axis direction can be greater than or equal to the sum of the lengths of each of the first auxiliary sub-pixels Pa1 and each of the second auxiliary sub-pixels Pa2 in the y-axis direction. In this case, the pixel layout can be called an S-stripe layout.

[0116] The first auxiliary sub-pixel Pa1, the second auxiliary sub-pixel Pa2, and the third auxiliary sub-pixel Pa3 can form a single pixel group Pg. For example, as shown... Figure 5 As shown, a single pixel group Pg may include three auxiliary sub-pixels, for example, a first auxiliary sub-pixel Pa1, a second auxiliary sub-pixel Pa2, and a third auxiliary sub-pixel Pa3. However, this disclosure is not limited thereto, and various modifications can be made to the number and / or layout of the auxiliary sub-pixels Pa1, Pa2, and Pa3 included in a single pixel group Pg.

[0117] Multiple transmissive portions TA can be arranged at the second display area DA2 (e.g., in or on the second display area DA2). Since display elements may not be arranged at the transmissive portions TA (e.g., in or on the transmissive portions TA), each of the transmissive portions TA can be a region with high light transmittance. The transmissive portions TA can alternate with the pixel group Pg in a first direction (e.g., the x-axis direction) and / or in a second direction (e.g., the y-axis direction). However, this disclosure is not limited thereto, and in another embodiment, for example, the transmissive portions TA can be arranged to surround the pixel group Pg (e.g., located around the periphery of the pixel group Pg).

[0118] At the second display area DA2 (e.g., in or on the second display area DA2), basic units (e.g., unit regions) U including pixel group Pg and transmissive portion TA can be repeatedly arranged in the x-axis direction and the y-axis direction.

[0119] exist Figure 5 The basic unit U shown can have a quadrilateral shape and can include a pixel group Pg and a plurality of transmissive portions TA arranged around the pixel group Pg (e.g., partially surrounding the periphery of the pixel group Pg) and defined together. The basic unit U can be a repeating structure and can be a non-discontinuous construction. For example, the transmissive portions TA included in the basic unit U can be integrally formed with the transmissive portions TA included in adjacent basic units U.

[0120] According to an embodiment, in the basic unit U, the pixel group Pg may occupy an area less than (e.g., less than) the area of ​​the transmissive portion TA. For example, the area of ​​the pixel group Pg may be about 1 / 3 of the area of ​​the transmissive portion TA. In other words, the area of ​​the pixel group Pg may be about 1 / 4 of the area of ​​the basic unit U, and the area of ​​the transmissive portion TA may be about 3 / 4 of the area of ​​the basic unit U.

[0121] According to the embodiment, the auxiliary sub-pixels Pa1, Pa2 and Pa3 may have a pixel layout structure that is different from the pixel layout structure of the main sub-pixels Pm1, Pm2 and Pm3, and the light-emitting area of ​​the third auxiliary sub-pixel Pa3 may be larger than the light-emitting area of ​​the third main sub-pixel Pm3.

[0122] When the first auxiliary sub-pixel Pa1, the second auxiliary sub-pixel Pa2, and the third auxiliary sub-pixel Pa3 have the same pixel layout structure as the first main sub-pixel Pm1, the second main sub-pixel Pm2, and the third main sub-pixel Pm3, and the same current is applied to the first auxiliary sub-pixel Pa1, the second auxiliary sub-pixel Pa2, and the third auxiliary sub-pixel Pa3 as to the first main sub-pixel Pm1, the second main sub-pixel Pm2, and the third main sub-pixel Pm3, the brightness of the second display area DA2 decreases. When more current is applied to the first auxiliary sub-pixel Pa1, the second auxiliary sub-pixel Pa2, and the third auxiliary sub-pixel Pa3 than to the first main sub-pixel Pm1, the second main sub-pixel Pm2, and the third main sub-pixel Pm3 to compensate for the brightness of the second display area DA2, the first auxiliary sub-pixel Pa1, the second auxiliary sub-pixel Pa2, and the third auxiliary sub-pixel Pa3 degrades (e.g., becomes prone to degradation).

[0123] According to an embodiment, the first auxiliary sub-pixel Pa1, the second auxiliary sub-pixel Pa2, and the third auxiliary sub-pixel Pa3 can each have a larger light-emitting area than the first main sub-pixel Pm1, the second main sub-pixel Pm2, and the third main sub-pixel Pm3. In this case, by adopting a pixel layout structure in which the second display area DA2 includes the first auxiliary sub-pixel Pa1, the second auxiliary sub-pixel Pa2, and the third auxiliary sub-pixel Pa3 with larger light-emitting areas, degradation of the first auxiliary sub-pixel Pa1, the second auxiliary sub-pixel Pa2, and the third auxiliary sub-pixel Pa3 can be prevented or substantially prevented. Therefore, the second display area DA2 can provide the same or substantially the same level of brightness as the first display area DA1.

[0124] According to an embodiment, a third auxiliary sub-pixel Pa3, which displays the same or substantially the same color as the third primary sub-pixel Pm3, may have a larger light-emitting area than the third primary sub-pixel Pm3. For example, the light-emitting area of ​​each of the third auxiliary sub-pixels Pa3 may be four to eight times larger than the light-emitting area of ​​each of the third primary sub-pixels Pm3. In this case, both the third auxiliary sub-pixel Pa3 and the third primary sub-pixel Pm3 can emit blue light. Because organic light-emitting diodes that emit blue light are more prone to degradation than those that emit other colors, the light-emitting area of ​​the blue-light-emitting pixel can have the largest possible area.

[0125] Similarly, a first auxiliary sub-pixel Pa1 that displays the same or substantially the same color as the first primary sub-pixel Pm1 may have a larger light-emitting area than the first primary sub-pixel Pm1, and a second auxiliary sub-pixel Pa2 that displays the same or substantially the same color as the second primary sub-pixel Pm2 may have a larger light-emitting area than the second primary sub-pixel Pm2. The size of the light-emitting area of ​​each first auxiliary sub-pixel Pa1 and each second auxiliary sub-pixel Pa2 may be two to six times the size of the light-emitting area of ​​each first primary sub-pixel Pm1 and each second primary sub-pixel Pm2, respectively.

[0126] At the first display area DA1 (e.g., in or on the first display area DA1), corresponding units (e.g., corresponding unit regions) U', each having the same or substantially the same area (e.g., the same size) as each basic unit U, can be arranged (e.g., can be configured) to have the same area (e.g., the same size) as each basic unit U. In this case, the number of primary sub-pixels Pm1, Pm2, and Pm3 included in each corresponding unit U' can be greater than the number of auxiliary sub-pixels Pa1, Pa2, and Pa3 included in each basic unit U.

[0127] However, the total luminous area of ​​the auxiliary sub-pixels Pa1, Pa2, and Pa3 included in each basic unit U can be 0.5 to 1 times the total luminous area of ​​the main sub-pixels Pm1, Pm2, and Pm3 included in each corresponding unit U'. In other words, when the number of auxiliary sub-pixels Pa1, Pa2, and Pa3 included in each basic unit U is three, and the number of main sub-pixels Pm1, Pm2, and Pm3 included in each corresponding unit U' is 32, the sum of the luminous areas of the three auxiliary sub-pixels Pa1, Pa2, and Pa3 can be 0.5 to 1 times the sum of the luminous areas of the 32 main sub-pixels Pm1, Pm2, and Pm3.

[0128] The luminous areas of the auxiliary sub-pixels Pa1, Pa2, and Pa3 can be determined (e.g., set) by considering the sum of the luminous areas of the principal sub-pixels Pm1, Pm2, and Pm3 included in each corresponding unit U'.

[0129] The reference shows along Figure 5 The cross-section of the display panel 10 taken by lines I-I' and II-II' Figure 6The display device 1 according to an embodiment includes a first display area DA1 and a second display area DA2. A third main sub-pixel Pm3 may be disposed at the first display area DA1 (e.g., in or on the first display area DA1). A third auxiliary sub-pixel Pa3 and a transmissive portion TA may be disposed at the second display area DA2 (e.g., in or on the second display area DA2). In this case, the third main sub-pixel Pm3 and the third auxiliary sub-pixel Pa3 may be sub-pixels that represent the same or substantially the same color as each other. For example, according to an embodiment, both the third main sub-pixel Pm3 and the third auxiliary sub-pixel Pa3 may be blue.

[0130] Each primary sub-pixel Pm may include a first thin-film transistor (TFT), a primary storage capacitor Cst, and a primary organic light-emitting diode (OLED). Each secondary sub-pixel Pa may include a second thin-film transistor (TFT'), a secondary storage capacitor Cst', and a secondary organic light-emitting diode (OLED'). The transmissive portion TA may include an opening region TAH corresponding to the transmissive area of ​​the transmissive portion TA.

[0131] Component 20 may be arranged in the second display area DA2 (e.g., below the substrate 100 at the second display area DA2, e.g., in or on the second display area DA2). Component 20 may include (e.g., may be) a camera for capturing images and / or an IR sensor for transmitting / receiving infrared (IR) light. Because the transmission portion TA is arranged at the second display area DA2 (e.g., in or on the second display area DA2), the transmission portion TA allows light emitted by component 20 to pass through the transmission portion TA and / or allows light to pass through the transmission portion TA and be incident on component 20. For example, light emitted from component 20 may travel via the transmission portion TA in the z-axis direction (e.g., travel through the transmission portion TA), and light generated outside the display device 1 and incident on component 20 may travel via the transmission portion TA in a direction opposite to the z-axis direction (e.g., in the -z-axis direction) (e.g., travel through the transmission portion TA). According to an embodiment, component 20 may include multiple image sensors, and in this case, one image sensor may be arranged corresponding to one transmission portion TA.

[0132] Structures comprising stacks of elements, layers, and / or components in display device 1, according to embodiments, will now be described.

[0133] Substrate 100 may comprise glass or a polymeric resin. Examples of polymeric resins may include polyethersulfone, polyacrylate, polyetherimide, polyethylene naphthalate, polyethylene terephthalate, polyphenylene sulfide, polyarylate, polyimide, polycarbonate, and cellulose acetate propionate. Substrate 100 comprising a polymeric resin may have flexible, rollable, and / or bendable properties. Substrate 100 may have a multilayer structure comprising layers containing one or more of the aforementioned polymeric resins and an inorganic layer.

[0134] A buffer layer 111 may be placed on a substrate 100 and may provide a flat or substantially flat surface on the substrate 100. The buffer layer 111 may reduce or prevent the infiltration of foreign matter, moisture, and / or ambient air from beneath the substrate 100. The buffer layer 111 may comprise inorganic materials (e.g., such as oxides or nitrides), organic materials, or organic-inorganic composites, and may be formed as a single layer or multiple layers comprising one or more of inorganic and organic materials. In one embodiment, a barrier layer may be further disposed between the substrate 100 and the buffer layer 111 to prevent or substantially prevent the infiltration of ambient air. According to an embodiment, the buffer layer 111 may comprise silicon oxide (SiO2) or silicon nitride (SiN). X The buffer layer 111 may include a first buffer layer 111a and a second buffer layer 111b stacked on top of each other.

[0135] The lower electrode layer BSM may be located between the first buffer layer 111a and the second buffer layer 111b at the second display region DA2 (e.g., in or on the second display region DA2). According to another embodiment, the lower electrode layer BSM may be located between the substrate 100 and the first buffer layer 111a at the second display region DA2 (e.g., in or on the second display region DA2). The lower electrode layer BSM may be positioned below (e.g., beneath) the second thin-film transistor TFT' and may prevent or substantially prevent the characteristics of the second thin-film transistor TFT' from deteriorating due to light emitted from, for example, component 20.

[0136] The lower electrode layer (BSM) can be connected to the wiring GCL via contact holes. The wiring GCL is located on a different layer than the lower electrode layer (BSM) (e.g., in a different layer or on a different layer). The lower electrode layer (BSM) can receive static voltages or signals from the wiring GCL. For example, the lower electrode layer (BSM) can receive a drive voltage ELVDD or a scan signal from the wiring GCL. When the lower electrode layer (BSM) receives static voltages or signals, the possibility of electrostatic discharge can be reduced or significantly reduced. The lower electrode layer (BSM) can include, for example, aluminum (Al), platinum (Pt), palladium (Pd), silver (Ag), magnesium (Mg), gold (Au), nickel (Ni), neodymium (Nd), iridium (Ir), chromium (Cr), molybdenum (Mo), titanium (Ti), tungsten (W), and / or copper (Cu). The lower electrode layer (BSM) can be a single layer or multiple layers comprising one or more of the materials mentioned above.

[0137] A first thin-film transistor (TFT) and / or a second thin-film transistor (TFT') may be disposed on a buffer layer 111. The first TFT includes a first semiconductor layer A1, a first gate electrode G1, a first source electrode S1, and a first drain electrode D1. The second 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 TFT can be connected to the main organic light-emitting diode (OLED) in the first display area DA1 and can drive the main OLED. The second TFT can be connected to the auxiliary organic light-emitting diode (OLED') in the second display area DA2 and can drive the auxiliary OLED.

[0138] The first semiconductor layer A1 and the second semiconductor layer A2 may be located on the buffer layer 111 and may comprise polycrystalline silicon. According to another embodiment, the first semiconductor layer A1 and the second semiconductor layer A2 may comprise amorphous silicon. According to another embodiment, the first semiconductor layer A1 and the second semiconductor layer A2 may comprise an oxide selected from at least one of the following: 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 comprise a channel region, a source region, and a drain region. The source region and the drain region may be doped with impurities.

[0139] The second semiconductor layer A2 can be stacked with the lower electrode layer BSM, with the second buffer layer 111b located therebetween. According to an embodiment, the width of the second semiconductor layer A2 (e.g., in the x-axis direction) can be smaller than the width of the lower electrode layer BSM (e.g., in the x-axis direction). Therefore, when projection is performed in a direction perpendicular to or substantially perpendicular to the substrate 100 (e.g., when viewed in a plan view), the entire second semiconductor layer A2 can be stacked with the lower electrode layer BSM.

[0140] The first gate insulating layer 112 may 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) or silicon nitride (SiN). x The first gate insulating layer 112 may be a single layer or multiple layers comprising one or more of the inorganic insulating materials mentioned above.

[0141] The first gate electrode G1 and the second gate electrode G2 are positioned on the first gate insulating layer 112 (e.g., on top of the first gate insulating layer 112) and are stacked with the first semiconductor layer A1 and the second semiconductor layer A2, respectively. The first gate electrode G1 and the second gate electrode G2 may include, for example, molybdenum (Mo), aluminum (Al), copper (Cu), and / or titanium (Ti), and may both be single-layer or multi-layer. For example, each of the first gate electrode G1 and the second gate electrode G2 may be a single layer of Mo.

[0142] The second gate insulating layer 113 may 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 silicon oxide (SiO2) or silicon nitride (SiN). x The inorganic insulating layer 113 may be a single layer or multiple layers comprising one or more of the aforementioned inorganic insulating materials, such as silicon oxynitride (SiON), aluminum oxide (Al2O3), titanium oxide (TiO2), tantalum oxide (Ta2O5), hafnium oxide (HfO2), and / or zinc oxide (ZnO2).

[0143] The first upper electrode CE2 of the main storage capacitor Cst and the second upper electrode CE2' of the auxiliary storage capacitor Cst' can be located on the second gate insulating layer 113.

[0144] The first upper electrode CE2 may be stacked with the first gate electrode G1 at the first display area DA1 (e.g., in or on the first display area DA1), and the second gate insulating layer 113 is located between the first upper electrode CE2 and the first gate electrode G1. The first gate electrode G1, the first upper electrode CE2, and the second gate insulating layer 113 therebetween may define (e.g., may form or may constitute) the main storage capacitor Cst. In this case, the first gate electrode G1 may serve as (e.g., may be) the first lower electrode CE1 of the main storage capacitor Cst.

[0145] The second upper electrode CE2' may be stacked with the second gate electrode G2 at the second display region DA2 (e.g., in or on the second display region DA2), and the second gate insulating layer 113 is located between the second upper electrode CE2' and the second gate electrode G2. The second gate electrode G2, the second upper electrode CE2', and the second gate insulating layer 113 therebetween may define (e.g., may form or may constitute) an auxiliary storage capacitor Cst'. In this case, the second gate electrode G2 may serve as (e.g., may be) the second lower electrode CE1' of the auxiliary storage capacitor Cst'.

[0146] The first upper electrode CE2 and the second upper electrode CE2' may include, for example, 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), and may both be a single layer or multiple layers of one or more of the aforementioned materials.

[0147] The interlayer insulating layer 115 may cover the first upper electrode CE2 and the second upper electrode CE2'. The interlayer insulating layer 115 may include, for example, SiO2 or SiN. x , SiON, Al2O3, TiO2, Ta2O5, HfO2, ZnO2, etc.

[0148] The first gate insulating layer 112, the second gate insulating layer 113, and the interlayer insulating layer 115 can be collectively referred to as the inorganic insulating layer IL, and in this case, the structure in which the inorganic insulating layer IL is stacked on the substrate 100 can have a transmittance of about 90% or greater relative to infrared wavelengths. For example, light with wavelengths from 900 nm to 1100 nm can pass through the substrate 100, such that the inorganic insulating layer IL can have a transmittance of about 90%.

[0149] The first source electrode S1, 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. Each of the first source electrode S1, the second source electrode S2, the first drain electrode D1, and the second drain electrode D2 may comprise a conductive material comprising, for example, Mo, Al, Cu, and / or Ti, and may be a single layer or multiple layers comprising one or more of the aforementioned materials. For example, in an embodiment, each of the first source electrode S1, the second source electrode S2, the first drain electrode D1, and the second drain electrode D2 may be formed as a Ti / Al / Ti multilayer.

[0150] The planarization layer 117 can be positioned to cover the first source electrode S1 and the second source electrode S2, as well as the first drain electrode D1 and the second drain electrode D2. The planarization layer 117 can have a flat or substantially flat upper surface, such that the first pixel electrode 221 and the second pixel electrode 221' positioned thereon can be formed as flat or substantially flat.

[0151] Planarization layer 117 may be a single layer comprising organic material or a multilayer formed by stacking various single layers comprising organic material. Planarization layer 117 may include general polymers (e.g., such as benzocyclobutene (BCB), polyimide, hexamethyldisiloxane (HMDSO), polymethyl methacrylate (PMMA) and / or polystyrene (PS)), polymer derivatives having phenolic groups, acrylic polymers, imide polymers, propylene ether polymers, amide polymers, fluorinated polymers, p-xylene polymers, vinyl alcohol polymers, etc., or combinations thereof (blends).

[0152] An opening that exposes one of the first source electrode S1 and the first drain electrode D1 of the first thin-film transistor TFT can be formed in the planarization layer 117, and the first pixel electrode 221 can contact the first source electrode S1 or the first drain electrode D1 through the opening to be electrically connected to the first thin-film transistor TFT.

[0153] Another opening that exposes one of the second source electrode S2 and the second drain electrode D2 of the second thin film transistor TFT' can be formed in the planarization layer 117, and the second pixel electrode 221' can contact the second source electrode S2 or the second drain electrode D2 via the opening to be electrically connected to the second thin film transistor TFT'.

[0154] The first pixel electrode 221 and the second pixel electrode 221' may include conductive oxides, 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). According to another embodiment, the first pixel electrode 221 and the second pixel electrode 221' may include a reflective layer comprising, for example, silver (Ag), magnesium (Mg), aluminum (Al), platinum (Pt), palladium (Pd), gold (Au), nickel (Ni), neodymium (Nd), iridium (Ir), chromium (Cr), or mixtures of these materials (e.g., composites). According to another embodiment, the first pixel electrode 221 and the second pixel electrode 221' may also include a film formed of ITO, IZO, ZnO, and / or In2O3, and this film may be located above / below the aforementioned reflective layer. According to embodiments, each of the first pixel electrode 221 and the second pixel electrode 221' may have an ITO / Ag / ITO stacked structure.

[0155] The pixel defining layer 119 may cover the edges (e.g., opposite edges) of each of the first pixel electrode 221 and the second pixel electrode 221'. The pixel defining layer 119 is stacked with the first pixel electrode 221 and the second pixel electrode 221' and includes a first opening OP1 and a second opening OP2 defining the light-emitting region of the sub-pixel. The pixel defining layer 119 can prevent or substantially prevent arcing at the edges of the first pixel electrode 221 and the second pixel electrode 221' (e.g., in or on the edges of the first pixel electrode 221 and the second pixel electrode 221') by increasing the distance between the edges of the first pixel electrode 221 and the second pixel electrode 221' and the portion of the counter electrode 223 located on the first pixel electrode 221 and the second pixel electrode 221'. The pixel defining layer 119 may be formed from an organic insulating material (e.g., polyimide, polyamide, acrylic resin, benzocyclobutene, hexamethyldisiloxane (HMDSO), or phenolic resin) via spin coating or the like.

[0156] The planarization layer 117 and the pixel defining layer 119 can be collectively referred to as the organic insulating layer OL, and in this case, the organic insulating layer OL can have a transmittance of about 90% or more relative to the infrared wavelength. For example, light with wavelengths from 900 nm to 1100 nm can pass through the organic insulating layer OL, so that the organic insulating layer OL can have a transmittance of about 90%.

[0157] The first emitting layer 222b and the second emitting layer 222b' can be arranged in the first opening OP1 and the second opening OP2 of the pixel defining layer 119, respectively, to correspond to the first pixel electrode 221 and the second pixel electrode 221'. The first emitting layer 222b and the second emitting layer 222b' can include high molecular weight materials or low molecular weight materials, and can emit red light, green light, blue light or white light.

[0158] The organic functional layer 222e may be located above and / or below the first emission layer 222b and the second emission layer 222b'. The organic functional layer 222e may include the first functional layer 222a and / or the second functional layer 222c. However, this disclosure is not limited thereto, and the first functional layer 222a or the second functional layer 222c may be omitted.

[0159] The first functional layer 222a may be located below (e.g., beneath) the first emitting layer 222b and the second emitting layer 222b'. The first functional layer 222a may be a single layer or multiple layers comprising organic material. The first functional layer 222a may include (e.g., may be) a single-layer hole transport layer (HTL). In another embodiment, 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 principal sub-pixel Pm and the auxiliary sub-pixel Pa included in the first display region DA1 and the second display region DA2 (e.g., in or on the first display region DA1 and the second display region DA2). Therefore, the first functional layer 222a may be arranged to correspond to the transmission portion TA.

[0160] The second functional layer 222c may be located on the first emitting layer 222b and the second emitting layer 222b' (e.g., above the first emitting layer 222b and the second emitting layer 222b'). The second functional layer 222c may be a single layer or multiple layers comprising organic materials. 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-pixel Pm and the auxiliary sub-pixel Pa included in the first display area DA1 and the second display area DA2 (e.g., in or on the first display area DA1 and the second display area DA2). Therefore, the second functional layer 222c may be arranged to correspond to the transmission portion TA.

[0161] Counter electrode 223 may be disposed on the second functional layer 222c. Counter electrode 223 may comprise a conductive material having a low work function. For example, counter electrode 223 may comprise a (semi-)transparent layer comprising, for example, silver (Ag), magnesium (Mg), aluminum (Al), platinum (Pt), palladium (Pd), gold (Au), nickel (Ni), neodymium (Nd), iridium (Ir), chromium (Cr), lithium (Li), calcium (Ca), or mixtures thereof (e.g., alloys). In another embodiment, counter electrode 223 may further comprise a layer comprising, for example, ITO, IZO, ZnO, or In2O3, located on a (semi-)transparent layer comprising one or more of the aforementioned materials. Counter electrode 223 may be integrally formed to correspond to a primary sub-pixel Pm and an auxiliary sub-pixel Pa included in the first display region DA1 and the second display region DA2 (e.g., in or on the first display region DA1 and the second display region DA2).

[0162] A layer extending from the first pixel electrode 221 to the counter electrode 223, disposed in the first display area DA1 (e.g., in or on the first display area DA1), may define (e.g., form or constitute) a main organic light-emitting diode (OLED). A layer extending from the second pixel electrode 221' to the counter electrode 223, disposed in the second display area DA2 (e.g., in or on the second display area DA2), may define (e.g., form or constitute) an auxiliary organic light-emitting diode (OLED').

[0163] An upper layer 250 comprising organic material may be located on the counter electrode 223. The upper layer 250 may be configured to protect the counter electrode 223 and may also increase light extraction efficiency. The upper layer 250 may comprise an organic material having a refractive index higher than that of the counter electrode 223. In another embodiment, the upper layer 250 may comprise stacked layers having different refractive indices from each other. For example, the upper layer 250 may be configured by stacking a high-refractive-index layer, a low-refractive-index layer, and another high-refractive-index layer in the aforementioned order. In this case, the high-refractive-index layer may have a refractive index of 1.7 or greater, and the low-refractive-index layer may have a refractive index of 1.3 or greater.

[0164] In one embodiment, the upper layer 250 may additionally comprise lithium fluoride (LiF). In another embodiment, the upper layer 250 may comprise an inorganic insulating material, such as silicon oxide (SiO2) or silicon nitride (SiN). x ).

[0165] According to the embodiments, such as Figure 6As shown, 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. In other words, the first functional layer 222a, the second functional layer 222c, the counter electrode 223, and the upper layer 250 may each include 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 can be formed by laser. According to an embodiment, the openings forming the opening region TAH may (e.g., in the x-axis direction) have the same or substantially the same width as each other. For example, the width of the opening of the counter electrode 223 may be the same or substantially the same as the width of the opening region TAH.

[0166] According to the embodiment, the first functional layer 222a, the second functional layer 222c, and the upper layer 250 can be omitted. In this case, the opening of the counter electrode 223 can define (e.g., it can be) an opening region TAH.

[0167] The opening region TAH corresponding to the transmission portion TA can refer to the opening region TAH superimposed on the transmission portion TA. In this case, the opening region TAH can have an area smaller than the area of ​​the first hole H1 formed in the inorganic insulating layer IL. For example, Figure 6 It is shown that the width Wt of the opening region TAH is smaller than the width W1 of the first hole H1. When compared with other holes (e.g., H2 and H3) at the opening region TAH, the opening region TAH and the first hole H1 can have the smallest area.

[0168] According to an embodiment, the first functional layer 222a, the second functional layer 222c, the counter electrode 223, and the upper layer 250 can be positioned on the side surfaces of the first hole H1, the second hole H2, and the third hole H3. According to an embodiment, the inclination of the side surfaces of the first hole H1, the second hole H2, and the third hole H3 relative to the upper surface of the substrate 100 can be gentler than the inclination of the side surface of the opening region TAH relative to the upper surface of the substrate 100.

[0169] Because the opening region TAH can be formed such that components such as counter electrode 223 are removed from the transmission portion TA, the transmittance of the transmission portion TA can be increased or significantly increased.

[0170] The main organic light-emitting diode (OLED) and the auxiliary organic light-emitting diode (OLED) can be sealed by a thin-film encapsulation layer 300. The thin-film encapsulation layer 300 can be positioned on the upper layer 250. The thin-film encapsulation layer 300 can prevent or reduce the penetration of external moisture and / or foreign matter into the main OLED and the auxiliary OLED.

[0171] The thin-film encapsulation layer 300 may include at least one inorganic encapsulation layer and at least one organic encapsulation layer. For example, Figure 6 The thin-film encapsulation layer 300 is shown to include a first inorganic encapsulation layer 310, an organic encapsulation layer 320, and a second inorganic encapsulation layer 330. However, this disclosure is not limited thereto, and according to another embodiment, various modifications can be made to the number of organic encapsulation layers, the number of inorganic encapsulation layers, and / or the stacking order of the organic and inorganic encapsulation layers.

[0172] The first inorganic encapsulation layer 310 and the second inorganic encapsulation layer 330 may comprise at least one inorganic insulating material, such as alumina, titanium oxide, tantalum oxide, hafnium oxide, zinc oxide, silicon oxide, silicon nitride, and / or silicon oxynitride, and may be formed via chemical vapor deposition (CVD) or the like. The organic encapsulation layer 320 may comprise a polymeric material. Examples of polymeric materials may include silicone resins, acrylic resins, epoxy resins, polyimides, and polyethylene.

[0173] The first inorganic encapsulation layer 310, the organic encapsulation layer 320, and the second inorganic encapsulation layer 330 can be uniformly and integrally formed to cover the first display area DA1 and the second display area DA2. Therefore, the first inorganic encapsulation layer 310, the organic encapsulation layer 320, and the second inorganic encapsulation layer 330 can be arranged within the opening area TAH.

[0174] According to another embodiment, the organic encapsulation layer 320 can be integrally formed to cover the first display area DA1 and the second display area DA2, but it can be omitted from the transmissive portion TA (e.g., it may not exist 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 can contact each other at the opening region TAH (e.g., within the opening region TAH).

[0175] According to an embodiment, the second opening OP2 defining the light-emitting region EA2 of the third auxiliary sub-pixel Pa3 can have a larger size than the first opening OP1 defining the light-emitting region EA1 of the third main sub-pixel Pm3. Therefore, when the third auxiliary sub-pixel Pa3 and the third main sub-pixel Pm3 receive the same or substantially the same current, the third auxiliary sub-pixel Pa3 can provide a higher brightness than the third main sub-pixel Pm3.

[0176] Because each basic unit U in the second display area DA2 has fewer auxiliary sub-pixels Pa than each corresponding unit U' in the first display area DA1 has fewer main sub-pixels Pm, the brightness achieved by the corresponding unit U' in the first display area DA1 can be equal to or substantially equal to the brightness achieved by the basic unit U in the second display area DA2.

[0177] Figure 7 According to another embodiment, along Figure 5 A schematic cross-sectional view of display device 1, taken along lines I-I' and II-II'. Figure 7 In, with Figure 6 The same reference numerals are used to denote the same or substantially the same elements, so their redundant descriptions need not be repeated.

[0178] Reference Figure 7 The display device 1 includes a first display area DA1 in which a main sub-pixel Pm is disposed (e.g., in or on it) and a second display area DA2 in which an auxiliary sub-pixel Pa and a transmissive portion TA are disposed (e.g., in or on it). The light-emitting area EA2 of the auxiliary sub-pixel Pa may be larger than the light-emitting area EA1 of the main sub-pixel Pm. In the display device 1 according to the embodiment, the pixel layout of the main sub-pixel Pm may be different from the pixel layout of the auxiliary sub-pixel Pa.

[0179] According to an embodiment, at least one of the first functional layer 222a, the second functional layer 222c, and the upper layer 250 may be arranged (e.g., may extend) to correspond to the transmission portion TA. In other words, at least one of the first functional layer 222a, the second functional layer 222c, and the upper layer 250 may be arranged within the opening region TAH.

[0180] The counter electrode 223 may include an opening corresponding to the transmission portion TA, and the width of the opening of the counter electrode 223 (e.g., in the x-axis direction) may be the same as or substantially the same as the width of the opening region TAH. In this case, a mask including, for example, a masking film that shields the transmission portion TA can be used to form the counter electrode 223.

[0181] Figure 8 According to another embodiment, along Figure 5 A schematic cross-sectional view of display device 1, taken along lines I-I' and II-II'. Figure 8 In, with Figure 6 The same reference numerals are used to denote the same or substantially the same elements, so their redundant descriptions need not be repeated.

[0182] Reference Figure 8 The display device 1 includes a first display area DA1 in which a main sub-pixel Pm is disposed (e.g., in or on it) and a second display area DA2 in which an auxiliary sub-pixel Pa and a transmissive portion TA are disposed (e.g., in or on it). The light-emitting area EA2 of the auxiliary sub-pixel Pa may be larger than the light-emitting area EA1 of the main sub-pixel Pm. In the display device 1 according to the embodiment, the pixel layout of the main sub-pixel Pm may be different from the pixel layout of the auxiliary sub-pixel Pa.

[0183] According to an embodiment, the main organic light-emitting diode (OLED) and the auxiliary organic light-emitting diode (OLED) may be covered by an encapsulation substrate 300. The encapsulation substrate 300 includes a transparent material. For example, the encapsulation substrate 300 may include a glass material. In another embodiment, the encapsulation substrate 300 may include, for example, a polymer resin. The encapsulation substrate 300 can prevent or substantially prevent external moisture and / or foreign matter from penetrating into the main OLED and the auxiliary OLED.

[0184] A sealing material (e.g., 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 and / or foreign matter that may permeate between the substrate 100 and the encapsulation substrate 300'.

[0185] Figures 9 to 12 This is a schematic plan view illustrating various pixel layouts according to one or more other embodiments. Figures 9 to 12 In, with Figure 5 The same reference numerals are used to denote the same or substantially the same elements, so their redundant descriptions need not be repeated.

[0186] Reference Figure 9 The first primary sub-pixel Pm1, the second primary sub-pixel Pm2, and the third primary sub-pixel Pm3, arranged at the first display area DA1 (e.g., in or on the first display area DA1), may have a different pixel layout structure than the first auxiliary sub-pixel Pa1, the second auxiliary sub-pixel Pa2, and the third auxiliary sub-pixel Pa3 arranged at the second display area DA2 (e.g., in or on the second display area DA2). The light-emitting area of ​​the third auxiliary sub-pixel Pa3 may be larger than that of the third primary sub-pixel Pm3, and the third primary sub-pixel Pm3 may exhibit the same or substantially the same color as the third auxiliary sub-pixel Pa3. For example, according to an embodiment, the third auxiliary sub-pixel Pa3 and the third primary sub-pixel Pm3 may emit blue light.

[0187] According to an embodiment, the first auxiliary sub-pixel Pa1, the second auxiliary sub-pixel Pa2, and the third auxiliary sub-pixel Pa3 included in the basic unit U can be arranged in an S-stripe structure, and the six first auxiliary sub-pixels Pa1, the second auxiliary sub-pixel Pa2, and the third auxiliary sub-pixel Pa3 can be arranged in a pixel group Pg.

[0188] According to an embodiment, the light-emitting area of ​​the first auxiliary sub-pixel Pa1 can be larger than the light-emitting area of ​​the first main sub-pixel Pm1, and the first main sub-pixel Pm1 can display the same or substantially the same color as the first auxiliary sub-pixel Pa1.

[0189] According to the embodiment, the light-emitting area of ​​the second auxiliary sub-pixel Pa2 can be larger than the light-emitting area of ​​the second main sub-pixel Pm2, and the second main sub-pixel Pm2 can display the same or substantially the same color as the second auxiliary sub-pixel Pa2.

[0190] Reference Figure 10 The first primary sub-pixel Pm1, the second primary sub-pixel Pm2, and the third primary sub-pixel Pm3, arranged at the first display area DA1 (e.g., in or on the first display area DA1), may have a different pixel layout structure than the pixel layout structure of the first auxiliary sub-pixel Pa1, the second auxiliary sub-pixel Pa2, and the third auxiliary sub-pixel Pa3, arranged at the second display area DA2 (e.g., in or on the second display area DA2). The light-emitting area of ​​the third auxiliary sub-pixel Pa3 may be larger than the light-emitting area of ​​the third primary sub-pixel Pm3, and the third primary sub-pixel Pm3 may exhibit the same or substantially the same color as the third auxiliary sub-pixel Pa3. For example, according to an embodiment, the third auxiliary sub-pixel Pa3 and the third primary sub-pixel Pm3 may emit blue light.

[0191] According to an embodiment, the first auxiliary sub-pixel Pa1, the second auxiliary sub-pixel Pa2, and the third auxiliary sub-pixel Pa3 included in the basic unit U can be arranged in an S-stripe structure, and the first auxiliary sub-pixel Pa1, the second auxiliary sub-pixel Pa2, and the third auxiliary sub-pixel Pa3 can be classified into two pixel groups Pg arranged in the basic unit U. In other words, the three first auxiliary sub-pixels Pa1, the second auxiliary sub-pixel Pa2, and the third auxiliary sub-pixel Pa3 can be arranged in one pixel group Pg, and each basic unit U can include two pixel groups Pg. The two pixel groups Pg included in each basic unit U can be spaced apart from each other.

[0192] In this case, the sum of the luminous areas of the third auxiliary sub-pixel Pa3 included in the basic unit U can be about 0.5 to 1 times the sum of the luminous areas of the third main sub-pixel Pm3 included in the corresponding unit U'.

[0193] Therefore, the difference between the brightness achieved by the basic unit U and the brightness achieved by the corresponding unit U' can be reduced or minimized.

[0194] Reference Figure 11The first primary sub-pixel Pm1, the second primary sub-pixel Pm2, and the third primary sub-pixel Pm3, arranged at the first display area DA1 (e.g., in or on the first display area DA1), may have a different pixel layout structure than the pixel layout structure of the first auxiliary sub-pixel Pa1, the second auxiliary sub-pixel Pa2, and the third auxiliary sub-pixel Pa3, arranged at the second display area DA2 (e.g., in or on the second display area DA2). The light-emitting area of ​​the third auxiliary sub-pixel Pa3 may be larger than the light-emitting area of ​​the third primary sub-pixel Pm3, and the third primary sub-pixel Pm3 may exhibit the same or substantially the same color as the third auxiliary sub-pixel Pa3. For example, according to an embodiment, the third auxiliary sub-pixel Pa3 and the third primary sub-pixel Pm3 may emit blue light.

[0195] According to an embodiment, the first auxiliary sub-pixel Pa1, the second auxiliary sub-pixel Pa2, and the third auxiliary sub-pixel Pa3 included in the basic unit U can be arranged in a strip layout. In other words, the first auxiliary sub-pixel Pa1, the second auxiliary sub-pixel Pa2, and the third auxiliary sub-pixel Pa3 can be arranged along the x-axis direction (e.g., they can be juxtaposed along the x-axis direction). Each of the first auxiliary sub-pixel Pa1, the second auxiliary sub-pixel Pa2, and the third auxiliary sub-pixel Pa3 can extend along the y-axis direction.

[0196] In another embodiment, the first auxiliary sub-pixel Pa1, the second auxiliary sub-pixel Pa2, and the third auxiliary sub-pixel Pa3 may be arranged along the y-axis direction (e.g., they may be juxtaposed along the y-axis direction). In this case, each of the first auxiliary sub-pixel Pa1, the second auxiliary sub-pixel Pa2, and the third auxiliary sub-pixel Pa3 may extend along the x-axis direction.

[0197] According to an embodiment, the sum of the luminous areas of the third auxiliary sub-pixel Pa3 included in the basic unit U can be about 0.5 to 1 times the sum of the luminous areas of the third main sub-pixel Pm3 included in the corresponding unit U'.

[0198] According to an embodiment, the light-emitting area of ​​the first auxiliary sub-pixel Pa1 can be larger than the light-emitting area of ​​the first main sub-pixel Pm1, and the first main sub-pixel Pm1 can display the same or substantially the same color as the first auxiliary sub-pixel Pa1.

[0199] According to an embodiment, the light-emitting area of ​​the second auxiliary sub-pixel Pa2 can be larger than the light-emitting area of ​​the second main sub-pixel Pm2, and the second main sub-pixel Pm2 can display the same or substantially the same color as the second auxiliary sub-pixel Pa2.

[0200] Therefore, the difference between the brightness achieved by the basic unit U and the brightness achieved by the corresponding unit U' can be reduced or minimized.

[0201] Reference Figure 12 The first primary sub-pixel Pm1, the second primary sub-pixel Pm2, and the third primary sub-pixel Pm3, arranged at the first display area DA1 (e.g., in or on the first display area DA1), may have a different pixel layout structure than the first auxiliary sub-pixel Pa1, the second auxiliary sub-pixel Pa2, and the third auxiliary sub-pixel Pa3, arranged at the second display area DA2 (e.g., in or on the second display area DA2). The light-emitting area of ​​the third auxiliary sub-pixel Pa3 may be larger than the light-emitting area of ​​the third primary sub-pixel Pm3, and the third primary sub-pixel Pm3 may display the same or substantially the same color as the third auxiliary sub-pixel Pa3.

[0202] According to the embodiment, the first primary sub-pixel Pm1 and the first auxiliary sub-pixel Pa1 can represent red, the second primary sub-pixel Pm2 and the second auxiliary sub-pixel Pa2 can represent green, and the third primary sub-pixel Pm3 and the third auxiliary sub-pixel Pa3 can represent blue.

[0203] According to an embodiment, the third primary sub-pixel Pm3, which displays blue at the first display area DA1 (e.g., in or on the first display area DA1), can be arranged in odd-numbered rows (e.g., such as row 1N in the first display area), but the third auxiliary sub-pixel Pa3, which displays blue at the second display area DA2 (e.g., in or on the second display area DA2), can be arranged in even-numbered rows (e.g., such as row 2N in the second display area). In this case, the layout can be referred to as an RGBG pentile matrix structure.

[0204] The second primary sub-pixel Pm2, which represents green at the first display area DA1 (e.g., in or on the first display area DA1), can be arranged in an even-numbered row (e.g., such as the second row 2N), but the second auxiliary sub-pixel Pa2, which represents green at the second display area DA2 (e.g., in or on the second display area DA2), can be arranged in an odd-numbered row (e.g., such as the first row 1N). In this case, the layout can be referred to as an RBGB pentile matrix structure.

[0205] In other words, the blue sub-pixel and the green sub-pixel are located at different positions in the first display area DA1 and the second display area DA2 (e.g., in or on the first display area DA1 and the second display area DA2). The third auxiliary sub-pixel Pa3, which may be a blue sub-pixel, and is arranged in the second display area DA2 (e.g., in or on the second display area DA2), may have a larger light-emitting area than the third main sub-pixel Pm3, which may be a blue sub-pixel.

[0206] The number of third auxiliary sub-pixels Pa3 arranged at the basic unit U (e.g., in or on the basic unit U) is 4, and the number of third main sub-pixels Pm3 arranged at the corresponding unit U' (e.g., in or on the corresponding unit U') is 8. The sum of the luminous areas of the individual third auxiliary sub-pixels Pa3 included in the basic unit U can be about 0.5 to 1 times the sum of the luminous areas of the individual third main sub-pixels Pm3 included in the corresponding unit U'.

[0207] Therefore, the light-emitting area of ​​blue sub-pixels that may be easily degraded can be ensured (e.g., the light-emitting area of ​​blue sub-pixels that may be easily degraded), thus providing a highly reliable display device.

[0208] As described above, because one or more embodiments of this disclosure can employ a pixel layout structure that includes auxiliary sub-pixels in the second display area being larger than the main sub-pixels in the first display area, a highly reliable display device can be provided.

[0209] It should be understood that the exemplary embodiments described herein are to be considered in a descriptive sense only and not for limiting purposes. The description of features or aspects within each exemplary embodiment should generally be considered applicable to other similar features or aspects in other embodiments, unless otherwise described. While one or more embodiments have been described with reference to figures, it will be understood by those skilled in the art that various modifications and changes in form and / or detail may be made therein without departing from the spirit and scope of this disclosure as defined by the claims and their equivalents.

Claims

1. A display device, the display device comprising: The substrate includes a first display area and a second display area; The principal sub-pixel is located in the first display area; as well as The basic unit, located in the second display area and being the smallest repeating unit, includes auxiliary sub-pixels and a transmissive portion. The pixel layout of the auxiliary sub-pixel differs from that of the main sub-pixel. Wherein, the size of the light-emitting area of ​​the first auxiliary sub-pixel is larger than the size of the light-emitting area of ​​the first main sub-pixel, and the first main sub-pixel displays the same color as the first auxiliary sub-pixel; the size of the light-emitting area of ​​the second auxiliary sub-pixel is larger than the size of the light-emitting area of ​​the second main sub-pixel, and the second main sub-pixel displays the same color as the second auxiliary sub-pixel; the size of the light-emitting area of ​​the third auxiliary sub-pixel is larger than the size of the light-emitting area of ​​the third main sub-pixel, and the third main sub-pixel displays the same color as the third auxiliary sub-pixel; and... In this embodiment, a corresponding unit, which includes a main sub-pixel and has an area equal to that of the basic unit, is located in the first display area. The number of main sub-pixels included in each corresponding unit is greater than the number of auxiliary sub-pixels included in each basic unit. Furthermore, the sum of the light-emitting areas of one or more first auxiliary sub-pixels included in the basic unit is 0.5 to 1 times the sum of the light-emitting areas of the first main sub-pixels included in the main sub-pixels of the corresponding unit.

2. The display device according to claim 1, wherein, The main sub-pixels are arranged in a pentile matrix structure, and the auxiliary sub-pixels are arranged in an S-stripe structure.

3. The display device according to claim 1, wherein, The first auxiliary sub-pixel and the first main sub-pixel are configured to emit blue light.

4. The display device according to claim 1, wherein, The area occupied by the transmissive portion in the basic unit is 3 / 4 of the area of ​​the basic unit.

5. The display device according to claim 1, wherein, The auxiliary sub-pixels constitute a group of pixels spaced apart from each other within the basic unit.

6. The display device according to claim 1, wherein, The main sub-pixels are arranged in a pentile matrix structure, and the auxiliary sub-pixels are arranged in a stripe structure.

7. The display device according to claim 1, wherein, The main sub-pixels are arranged in an RGBG pentile matrix structure, and the auxiliary sub-pixels are arranged in an RBGB pentile matrix structure.

8. The display device according to claim 1, further comprising an inorganic insulating layer located on the substrate. in, The inorganic insulating layer has an opening corresponding to the transmission portion.

9. The display device according to claim 1, wherein, Counter electrodes covering the main sub-pixel and the auxiliary sub-pixel extend in the first display area and the second display area, the counter electrodes being integrally formed and having openings corresponding to the transmissive portion.

10. A display device, the display device comprising: The substrate includes a first display area and a second display area, the first display area including main sub-pixels, and the second display area including basic units, the basic units being minimal repeating units and including auxiliary sub-pixels and transmissive portions; The first principal sub-pixel among the principal sub-pixels includes a first pixel electrode and a first emission layer; The first auxiliary sub-pixel of the auxiliary sub-pixels includes a second pixel electrode and a second emission layer, and the first auxiliary sub-pixel exhibits the same color as the first main sub-pixel; as well as Counter electrodes cover both the first display area and the second display area, and the counter electrodes are integrally formed. The auxiliary sub-pixel has a different pixel layout structure than the main sub-pixel, and the size of the light-emitting area of ​​the first auxiliary sub-pixel is larger than the size of the light-emitting area of ​​the first main sub-pixel. Wherein, the size of the light-emitting area of ​​the second auxiliary sub-pixel is larger than the size of the light-emitting area of ​​the second main sub-pixel, and the second main sub-pixel displays the same color as the second auxiliary sub-pixel; the size of the light-emitting area of ​​the third auxiliary sub-pixel is larger than the size of the light-emitting area of ​​the third main sub-pixel, and the third main sub-pixel displays the same color as the third auxiliary sub-pixel; and In this embodiment, a corresponding unit, which includes a main sub-pixel and has an area equal to that of the basic unit, is located in the first display area. The number of main sub-pixels included in each corresponding unit is greater than the number of auxiliary sub-pixels included in each basic unit. Furthermore, the sum of the light-emitting areas of one or more first auxiliary sub-pixels included in the basic unit is 0.5 to 1 times the sum of the light-emitting areas of the first main sub-pixels included in the main sub-pixels of the corresponding unit.

11. The display device of claim 10, further comprising a functional layer located between the first pixel electrode and the second pixel electrode and the counter electrode. in, A portion of the functional layer is positioned corresponding to the transmissive portion.

12. The display device of claim 10, further comprising a pixel defining layer having a first opening exposing a central portion of the first pixel electrode and a second opening exposing a central portion of the second pixel electrode. in, The light-emitting area of ​​the first primary sub-pixel is defined by the first opening, and the light-emitting area of ​​the first auxiliary sub-pixel is defined by the second opening.

13. The display device according to claim 10, further comprising an inorganic insulating layer located on the substrate, in, The inorganic insulating layer has an opening corresponding to the transmission portion.

14. The display device according to claim 10, wherein, The first display area and the second display area are sealed by a packaging substrate facing the substrate.

15. The display device according to claim 10, further comprising a thin-film encapsulation layer, the thin-film encapsulation layer comprising a first inorganic encapsulation layer, an organic encapsulation layer and a second inorganic encapsulation layer sequentially located on the counter electrode.

16. The display device according to claim 10, wherein, The main sub-pixels are arranged in a pentile matrix structure, and the auxiliary sub-pixels are arranged in an S-stripe structure.

17. The display device according to claim 10, wherein, The first auxiliary sub-pixel and the first main sub-pixel are configured to emit blue light.

18. The display device according to claim 10, wherein, The main sub-pixels are arranged in a pentile matrix structure, and the auxiliary sub-pixels are arranged in a stripe structure.

19. The display device according to claim 10, wherein, The main sub-pixels are arranged in an RGBG pentile matrix structure, and the auxiliary sub-pixels are arranged in an RBGB pentile matrix structure.

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