Display device

Abstract

A display device includes a display panel including a substrate having opposite first and second surfaces and a light emitting element provided on the first surface of the substrate, the display panel having a transmissive region through which light from outside the display device is transmitted, a sensor facing the second surface of the substrate and configured to sense light received through the transmissive region, and an anti-reflection member provided between the sensor and the substrate and transmitting light so as to reduce reflection of applied light. The anti-reflection member overlaps the transmissive region when viewed in a direction orthogonal to the first and second surfaces of the substrate.

Description

[0001] Cross-reference to related applications

[0002] This application claims priority and benefit to Korean Patent Application No. 10-2020-0066099, filed on June 1, 2020, which is incorporated herein by reference for all purposes, as if fully set forth herein. Technical Field

[0003] Exemplary implementations of the present invention generally relate to a display device, and more specifically, to a display device comprising a sensor that overlaps with and / or is surrounded by the display area of ​​the device. Background Technology

[0004] Even under harsh environmental conditions, the light-emitting element exhibits relatively good durability and excellent performance in terms of lifespan and brightness. To drive the light-emitting element, the display device may include an electrode configuration for transmitting power and / or electrical signals to the light-emitting element, and circuit elements capable of applying power, electrical signals, and / or information related to light emission to the electrode configuration.

[0005] Recently, display devices, including those equipped with sensors configured to acquire optical information, have been widely used. Sensors can receive light from the outside to obtain optical information. Sensors can be placed adjacent to light-emitting elements.

[0006] The information disclosed in this background section is only for understanding the background of the inventive concept, and therefore may contain information that does not constitute prior art. Summary of the Invention

[0007] The applicant recognizes that when ambient light is incident on a display device, the light can be reflected within the display device, for example, through apertures used for sensors, and that if the reflected light incidents on circuitry components in the display, degradation of those components may occur. Therefore, a display device capable of reducing reflected light is needed.

[0008] The display device constructed according to the principles and exemplary implementations of the present invention can reduce the degradation of circuit elements caused by reflected light. For example, the display device may include one or more anti-reflective members to prevent or at least reduce the reflection of light by the layers and / or elements of the display device. Thus, the anti-reflective members can weaken the reflection of light to reduce the light transmitted to the circuit elements inside the display device, thereby reducing the degradation of the display device and / or circuit elements caused by reflected light.

[0009] Additional features of the inventive concept will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practice of the inventive concept.

[0010] According to one aspect of the present invention, a display device includes: a display panel, the display panel including a substrate having opposing first and second surfaces and a light-emitting element disposed on the first surface of the substrate, the display panel having a transmissive region through which light is transmitted from outside the display device; a sensor facing the second surface of the substrate and configured to sense light received through the transmissive region; and an anti-reflective member disposed between the sensor and the substrate and allowing light to pass through in order to reduce reflection of applied light. When viewed in a direction orthogonal to the first and second surfaces of the substrate, the anti-reflective member overlaps with the transmissive region.

[0011] The sensor overlaps with the anti-reflective component.

[0012] The display device may further include a substrate portion facing the substrate. A sensor may be disposed on the substrate portion.

[0013] The display device may further include a cover plate disposed on a second surface of the substrate, which does not overlap with the transmission area and the sensor.

[0014] Anti-reflective components can have a refractive index different from that of the substrate.

[0015] The refractive index of an antireflective component can be substantially equal to or greater than about 1.3 and equal to or less than about 1.7.

[0016] Anti-reflective components may include reflection-reducing components, which include fillers having a predetermined or greater transmittance.

[0017] The reflection reduction component can be physically spaced apart from the sensor to create an air gap between the reflection reduction component and the sensor.

[0018] The reflection reduction component can be in physical contact with the sensor so that no air gap is formed between the reflection reduction component and the sensor.

[0019] The sensor can overlap with a reflection-reducing component.

[0020] The anti-reflection component may include a reflection reduction component, which includes a first anti-reflection film coated on a second surface of the substrate facing the sensor, and the first anti-reflection film may be an anti-reflection coating.

[0021] The reflection reduction component may further include a second anti-reflective film coated on the substrate-facing surface of the sensor, and the second anti-reflective film may include another anti-reflective coating.

[0022] The first anti-reflective film can overlap with the second anti-reflective film.

[0023] The first antireflective film may include a third surface and a fourth surface opposite to the third surface, the third surface being in contact with the substrate and the fourth surface being in contact with the sensor.

[0024] The second anti-reflective film can be placed in the area where the first anti-reflective film is located.

[0025] The display device may further include an air gap formed between the first antireflective film and the second antireflective film.

[0026] The sensor may include at least one of an optical fingerprint sensor, an illuminance sensor, a proximity sensor, a camera module, and a light sensor.

[0027] The anti-reflection component may include a first reflection reduction component and a second reflection reduction component. The first reflection reduction component may include a filler having a predetermined value or greater transmittance, and the second reflection reduction component may include an anti-reflection coating.

[0028] The display device may further include an air gap formed between the first reflection reduction member and the second reflection reduction member.

[0029] A second reflection-reducing component can be coated onto the sensor.

[0030] It should be understood that the foregoing general description and the following detailed description are exemplary and illustrative and are intended to provide further explanation of the claimed invention. Attached Figure Description

[0031] The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification. The drawings illustrate exemplary embodiments of the invention and, together with the description, serve to explain the inventive concept.

[0032] Figures 1 to 3 This is a plan view of an exemplary embodiment of a display device constructed according to the principles of the present invention.

[0033] Figure 4 yes Figures 1 to 3 A circuit diagram of an exemplary embodiment of a pixel driving circuit for a representative pixel in the pixels.

[0034] Figures 5 to 8 It is along Figure 1 The cross-sectional view taken by line I-I' to illustrate an exemplary embodiment of the display device.

[0035] Figures 9 to 12 It is along Figure 1 The line I-I' intercepted for illustration Figure 5 A schematic cross-sectional view of an exemplary embodiment of a reflection reduction component.

[0036] Figures 13 to 15 It is along Figure 1 The line I-I' intercepted for illustration Figure 5 A schematic cross-sectional view of other exemplary embodiments of the reflection reduction component.

[0037] Figures 16 to 18 It is along Figure 1 The line I-I' intercepted for illustration Figure 5 A schematic cross-sectional view of another exemplary embodiment of the structure for reducing reflection of the component. Detailed Implementation

[0038] In the following description, numerous specific details are set forth for illustrative purposes in order to provide a thorough understanding of various exemplary embodiments or implementations of the invention. As used herein, “embodiment” and “implementation” are interchangeable terms, referring to non-limiting examples of apparatus or methods employing one or more inventive concepts disclosed herein. However, it will be apparent that various exemplary embodiments may be implemented without these specific details or using one or more equivalent arrangements. In other instances, well-known structures and apparatuses are shown in block diagram form to avoid unnecessarily obscuring the various exemplary embodiments. Furthermore, the various exemplary embodiments may be different, but not necessarily exclusive. For example, a particular shape, configuration, and characteristic of an exemplary embodiment may be used or implemented in another exemplary embodiment without departing from the inventive concept.

[0039] Unless otherwise stated, the exemplary embodiments shown are to be understood as providing exemplary features of different details of some ways in which the inventive concept can be implemented in practice. Therefore, unless otherwise stated, features, components, modules, layers, films, panels, regions and / or aspects of various embodiments (hereinafter individually or collectively referred to as “elements”) may be combined, separated, interchanged and / or rearranged in other ways without departing from the inventive concept.

[0040] Crosshairs and / or shading are typically used in accompanying drawings to clarify the boundaries between adjacent elements. Therefore, unless otherwise stated, the presence or absence of crosshairs or shading does not convey or indicate any preference or requirement for particular materials, material properties, dimensions, scale, commonalities between illustrated elements, and / or any other characteristics, properties, etc., of the elements. Furthermore, in the accompanying drawings, the dimensions and relative dimensions of elements may be exaggerated for clarity and / or descriptive purposes. When exemplary embodiments can be implemented differently, a particular order of processes may be performed differently than the order described. For example, two consecutively described processes may be performed substantially simultaneously or in the reverse order of their description. Moreover, the same reference numerals denote the same elements.

[0041] When an element or layer is referred to as being "on," "connected to," or "coupled to" another element or layer, it can be directly on, directly connected to, or directly coupled to the other element or layer, or an intermediary element or layer may be present. However, when an element or layer is referred to as being "directly on," "directly connected to," or "directly coupled to" another element or layer, an intermediary element or layer is not present. For this purpose, the term "connection" can refer to a physical connection, electrical connection, and / or fluid connection with or without an intermediary element. Furthermore, the first direction DR1, the second direction DR2, and the third direction DR3 are not limited to the three axes of a Cartesian coordinate system such as the x-axis, y-axis, and z-axis, and can be interpreted in a broader sense. For example, the first direction DR1, the second direction DR2, and the third direction DR3 can be perpendicular to each other, or can represent different directions that are not perpendicular to each other. For the purposes of this disclosure, "at least one of X, Y, and Z" and "at least one selected from the group consisting of X, Y, and Z" can be interpreted as only X, only Y, only Z, or any combination of two or more of X, Y, and Z, such as XYZ, XYY, YZ, and ZZ. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0042] Although the terms “first,” “second,” etc., may be used herein to describe various types of elements, these elements should not be limited by these terms. These terms are used to distinguish one element from another. Therefore, without departing from the teachings of this disclosure, the first element discussed below may be referred to as the second element.

[0043] For descriptive purposes, spatial relative terms such as “below,” “under,” “below,” “down,” “above,” “above,” “higher,” and “side” (e.g., in a “sidewall”) may be used herein to describe the relationship between one element and another (multiple elements) as shown in the figures. In addition to the orientations depicted in the figures, spatial relative terms are also intended to cover different orientations of the device during use, operation, and / or manufacture. For example, if the device in the figures is flipped, an element described as “below” or “under” other elements or features will subsequently be oriented “above” other elements or features. Thus, the exemplary term “below” can cover both above and below orientations. Furthermore, the device may be oriented in other ways (e.g., rotated 90 degrees or in other orientations), and therefore, the spatial relative descriptive terms used herein shall be interpreted accordingly.

[0044] The terminology used herein is for the purpose of describing particular embodiments and is not intended to be limiting. As used herein, unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “the” are intended to include the plural forms as well. Furthermore, the terms “comprising,” “including,” “containing,” and / or “having,” when used in this specification, indicate the presence of the stated features, integrals, steps, operations, elements, components, and / or groups thereof, but do not preclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or groups thereof. It should also be noted that, as used herein, the terms “substantially,” “about,” and other similar terms are used as approximate terms rather than terms of degree, and therefore to explain the inherent biases in measurements, calculated values, and / or provided values ​​that will be recognized by those skilled in the art.

[0045] Various exemplary embodiments are described herein with reference to the following cross-sectional and / or exploded views, which are schematic diagrams of idealized exemplary embodiments and / or intermediate structures. Therefore, variations in the illustrated shapes are contemplated due to, for example, manufacturing techniques and / or margins. Consequently, the exemplary embodiments disclosed herein should not be construed as limited to the shapes of the specific regions shown, but rather include shape deviations caused, for example, by manufacturing processes. In this way, the regions shown in the figures may be schematic in nature, and the shapes of these regions may not reflect the actual shapes of the regions of the device, and therefore are not necessarily intended to be limiting.

[0046] Unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure pertains. Unless expressly defined herein, terms such as those defined in a general dictionary shall be interpreted as having a meaning consistent with the meaning of the term in the context of the relevant field and shall not be interpreted in an idealized or overly formalized sense.

[0047] Figures 1 to 3 This is a plan view of an exemplary embodiment of a display device constructed according to the principles of the present invention.

[0048] A display device refers to a device configured to provide visual data to a user. The display device described herein refers to a device including a light-emitting element configured to emit light when an electrical signal is applied. That is, the display device 1 according to exemplary embodiments of the present invention is not limited to specific applications such as tablet PCs, televisions, smartphones, and laptop computers.

[0049] Display device 1 may include a display panel DP with pixels PXL and a sensor (see reference). Figure 5The sensor SR can be any device, such as those described in more detail here, for sensing light and generating electrical signals.

[0050] The display panel (DP) can include the display area (DA) and the non-display area (NDA).

[0051] According to an exemplary embodiment, the display panel DP may include a sensing area and a non-sensing area. The display panel DP can not only display images but also sense touch input performed on the display surface and sense light incident from the front of the sensing area. The non-sensing area may surround the sensing area, but the exemplary embodiment is not limited thereto. According to an exemplary embodiment, some areas of the display area DA may correspond to the sensing area.

[0052] The display area DA and the non-display area NDA can be physically divided.

[0053] Pixel PXL can be located in the display area DA.

[0054] The sensor SR can be located in the display area DA.

[0055] Multiple pixel PXLs can be set in the display panel DP. That is to say, although for convenience... Figures 1 to 3 Only a single representative pixel PXL is shown in the image, but display device 1 includes multiple pixels PXL.

[0056] The display panel DP can output visual information on the front surface of the display device 1.

[0057] The pixel PXL may include at least a light-emitting element. The light-emitting element may include a material that serves as a light source when an electrical signal is applied.

[0058] When an electrical signal corresponding to the image data to be output is applied, pixel PXL can emit light that can be output to display area DA.

[0059] The light-emitting element can be an inorganic light-emitting element that includes inorganic light-emitting materials, or it can be a light-emitting element that emits light by changing the wavelength of the light emitted using quantum dots (quantum dot display element).

[0060] For the structure of the display panel DP, self-emissive display panels such as organic light-emitting diode (OLED) panels using OLEDs as light-emitting elements, ultra-small light-emitting diode display panels (nanoscale LED displays) using ultra-small light-emitting diodes as light-emitting elements, and quantum dot organic light-emitting display panels (QD OLED panels) using quantum dots and OLEDs can be used. However, the display panel DP is not limited to the above examples, and the display panel DP can be at least any of the following: liquid crystal display panels (LCD panels), electrophoretic display panels (EPD panels), electrowetting display panels (EWD panels), and any other known display panels.

[0061] In the following description, for convenience, the light-emitting elements contained in the display device 1 are described according to OLED.

[0062] When viewed from above the display device 1, the sensor SR can be located in the display area DA. The sensor SR can be located below the pixel PXL of the display device 1 and / or the wiring connected to the pixel PXL, and thus the sensor SR can be hidden relative to the front surface of the display device 1. "When viewed from above" as defined herein can refer to a third direction DR3, which is a direction perpendicular to the front surface of the display panel DP.

[0063] Because it will be referenced later. Figures 5 to 8 The structure of the sensor SR is described, therefore a detailed description of it is omitted to avoid redundancy.

[0064] The display area DA is the area where visible data is displayed externally. The display area DA refers to the area where pixel PXL is located.

[0065] The non-display area NDA refers to the area without pixels PXL.

[0066] When viewed from above, the non-display area NDA and the display area DA may not overlap. For example, the non-display area NDA may be located in an area that at least partially surrounds the outer edge of the display area DA.

[0067] According to an exemplary embodiment, the non-display area NDA may include a wiring area, a pad area, and / or a dummy area.

[0068] The display area DA may include a first display area A1 and a second display area A2.

[0069] When viewed from above the display device 1, the first display area A1 may refer to the area overlapping with the emission area EMA (see reference). Figure 5 When viewed from above the display device 1, the second display area A2 may refer to the area that does not overlap with the emission area EMA (see reference). Figure 5 ).

[0070] like Figure 1 and Figure 2 As shown, the second display area A2 can be surrounded by the first display area A1. Alternatively, as... Figure 3 As shown, the second display area A2 can be separated from the first display area A1 along the second direction DR2. The second display area A2 is not limited to the example above, but can be set to be adjacent to the display area DA or distributed anywhere in the display area DA, and can be provided as a single or multiple second display areas A2.

[0071] The transmittance of the second display area A2 can be higher than that of the first display area A1. Transmittance can be defined as the ratio of the intensity of transmitted light per unit area to the intensity of applied light. The number of pixels PXL per unit area in the second display area A2 can be less than the number of pixels PXL per unit area in the first display area A1. Alternatively, pixels PXL may not be present in the second display area A2.

[0072] The display device 1 may further include a window located at the top of the display device 1. This window may be a transparent transmissive substrate. This window can mitigate external impacts applied to the display device 1 while transmitting visual information.

[0073] A touch sensor can be placed between the display panel (DP) and the window. The touch sensor can be positioned on the surface onto which the image is projected from the display panel (DP) to receive user touch input.

[0074] Figure 4 yes Figures 1 to 3 A circuit diagram of an exemplary embodiment of a pixel driving circuit for a representative pixel in the pixels.

[0075] The display device 1 may include a pixel driving circuit PC, which may be a pixel driving circuit PC composed of... Figure 5 The pixel circuit part is implemented using PCL.

[0076] The pixel driving circuit PC may include first transistors T1 through seventh transistors T7 and a storage capacitor Cst. The pixel driving circuit PC may be electrically connected to a light-emitting element EL, which may be composed of… Figure 5 The display element part is implemented by DPL.

[0077] The first electrode of the first transistor T1 can be connected to the first power supply ELVDD via the fifth transistor T5, and the second electrode of the first transistor T1 can be connected to the anode electrode of the light-emitting element EL via the sixth transistor T6. The first transistor T1 can control the current flowing through the light-emitting element EL from the first power supply ELVDD to the second power supply ELVSS based on information related to the voltage of the first node N1. The first transistor T1 can be a driving transistor.

[0078] The second transistor T2 can be connected between the first electrode of the first transistor T1 and the j-th data line Dj. The gate electrode of the second transistor T2 can be connected to the i-th scan line Si. When a scan signal is applied from the i-th scan line Si, the second transistor T2 can be turned on, and the j-th data line Dj can be electrically connected to the first electrode of the first transistor T1. The second transistor T2 can be a switching transistor.

[0079] The third transistor T3 can be connected between the second electrode of the first transistor T1 and the first node N1. When a scan signal with a gate-on voltage is applied from the i-th scan line Si, the third transistor T3 can be turned on, and the second electrode of the first transistor T1 and the first node N1 can be electrically connected. As a result, when the third transistor T3 is turned on, the first transistor T1 can be connected in the form of a diode.

[0080] The fourth transistor T4 can be connected between the first node N1 and the initialization power line IPL to which the initialization power supply Vint is applied. The gate electrode of the fourth transistor T4 can be connected to the (i-1)th scan line Si-1. When a scan signal is applied to the (i-1)th scan line Si-1, the fourth transistor T4 can be turned on to supply the voltage of the initialization power supply Vint to the first node N1. The fourth transistor T4 can be an initialization transistor.

[0081] The fifth transistor T5 can be connected between the power line PL, to which the first power supply ELVDD is applied, and the first transistor T1. The gate electrode of the fifth transistor T5 can be connected to the i-th emitter control line Ei. When an emitter control signal with a gate cutoff voltage (e.g., a high-level voltage) is applied from the i-th emitter control line Ei, the fifth transistor T5 can be turned off, and under other conditions it can be turned on.

[0082] The sixth transistor T6 can be connected between the first transistor T1 and the light-emitting element EL. The gate electrode of the sixth transistor T6 can be connected to the i-th emission control line Ei. When an emission control signal with a gate cutoff voltage (e.g., a high-level voltage) is applied from the i-th emission control line Ei, the sixth transistor T6 can be turned off, and under other conditions it can be turned on.

[0083] The seventh transistor T7 can be connected between the initialization power line IPL and the first electrode of the light-emitting element EL (which, according to the example, can be the anode electrode). The gate electrode of the seventh transistor T7 can be connected to the (i+1)th scan line Si+1. When a scan signal with a gate turn-on voltage (e.g., a low-level voltage) is applied from the (i+1)th scan line Si+1, the seventh transistor T7 can be turned on to supply the initialization power supply Vint voltage to the anode electrode of the light-emitting element EL. The signal applied to the gate electrode of the seventh transistor T7 can be a signal with the same timing as the scan signal with the gate turn-on voltage applied from the i-th scan line Si.

[0084] The initial voltage of the power supply Vint can be set lower than the voltage of the data signal. For example, the initial voltage of the power supply Vint can be set to be equal to or lower than the minimum voltage of the data signal.

[0085] The storage capacitor Cst can be connected between the power line PL, to which the first power supply ELVDD is applied, and the first node N1. The storage capacitor Cst can store information related to the data signal and a voltage corresponding to the threshold voltage of the first transistor T1.

[0086] The anode of the light-emitting element EL can be connected to the first transistor T1 via the sixth transistor T6. The cathode of the light-emitting element EL can be connected to the second power supply ELVSS.

[0087] The light-emitting element EL can emit light of a predetermined brightness corresponding to the amount of current supplied from the first transistor T1. The voltage value of the first power supply ELVDD can be set higher than the voltage value of the second power supply ELVSS so that current flows to the light-emitting element EL.

[0088] The light-emitting element (EL) can be the EL described above. The light-emitting element (EL) can emit light of at least one color selected from red, green, blue, and white.

[0089] In the following text, reference will be made to Figures 5 to 8 A detailed exemplary single structure of a display device 1, including a sensor SR and a display panel DP, is described.

[0090] Figures 5 to 8 It is along Figure 1 The cross-sectional view taken by line I-I' is used to illustrate an exemplary embodiment of the display device. For ease of description, Figures 5 to 8 Only shown Figure 4 The sixth transistor T6 among the first transistor T1 to the seventh transistor T7.

[0091] The display device 1 may further include a substrate portion BS, a display panel DP, and a cover plate PTL.

[0092] The sensor SR can be located on the substrate portion BS. The substrate portion BS can be provided in the form of a substrate. According to examples, the substrate portion BS can include plastic or metal materials and can be such as a bracket and a housing.

[0093] The display panel (DP) may include a substrate (SUB), a pixel circuit section (PCL), a display element section (DPL), and a thin-film encapsulation film (TFE).

[0094] Depending on the purpose of the display device 1, the substrate SUB may comprise a rigid or flexible material. For example, a flexible material may comprise at least one of polystyrene, polyvinyl alcohol, polymethyl methacrylate, polyethersulfone, polyacrylate, polyetherimide, polyethylene naphthalate, polyterephthalic acid, polyphenylene sulfide, polyarylate, polyimide, polycarbonate, cellulose triacetate, and cellulose acetate propionate. However, the material of the substrate SUB is not limited to these.

[0095] The substrate SUB may face the substrate portion BS. The substrate SUB may be at least spaced apart from the substrate portion BS. However, according to an exemplary embodiment, the substrate SUB may contact the substrate portion BS, and is not limited to the embodiments described above.

[0096] The pixel circuit section PCL can be located on the substrate SUB. The pixel circuit section PCL may include a buffer film BFL, a gate insulating film GI, a sixth transistor T6, a first interlayer insulating film ILD1, a second interlayer insulating film ILD2, a first conductor CL1, a second conductor CL2, a first contact hole CH1, and a protective film PSV.

[0097] The buffer film (BFL) can be located on the substrate (SUB). The buffer film (BFL) prevents impurities from diffusing into the sixth transistor (T6). The buffer film (BFL) can include materials such as silicon nitride (SiN). x ), silicon dioxide (SiO) x ), silicon oxynitride (SiO) x N y ) and aluminum oxide (AlO x At least one of the following. However, the buffer membrane BFL can be omitted.

[0098] The sixth transistor T6 may be located in the first display area A1. The sixth transistor T6 may include a semiconductor pattern SCL, a source electrode SE, a drain electrode DE, and a gate electrode GE.

[0099] The semiconductor pattern SCL can be located on the buffer film BFL.

[0100] The semiconductor pattern SCL can be a semiconductor layer. According to examples, the semiconductor pattern SCL can include at least one of polycrystalline silicon, amorphous silicon, and oxide semiconductor.

[0101] The semiconductor pattern SCL may include a first contact area that contacts the source electrode SE and a second contact area that contacts the drain electrode DE.

[0102] The first contact region and the second contact region can be semiconductor patterns doped with impurities. The region between the first contact region and the second contact region can be a channel region. The channel region can be an intrinsic semiconductor pattern without impurities.

[0103] A gate insulating film (GI) can be provided on a semiconductor pattern SCL. The gate insulating film GI can include inorganic materials. As an example, the gate insulating film GI can include silicon nitride (SiN). x ), silicon dioxide (SiO) x ), silicon oxynitride (SiO) x N y ) and aluminum oxide (AlO x At least one of the following. According to an exemplary embodiment, the gate insulating film GI may include an organic material.

[0104] The gate electrode GE can be located on the gate insulating film GI.

[0105] The location of the gate electrode GE can correspond to and / or overlap with the location of the channel region of the semiconductor pattern SCL. For example, the gate electrode GE can be disposed on the channel region of the semiconductor pattern SCL, with the gate insulating film GI between them.

[0106] The first interlayer insulating film ILD1 can be located on the gate electrode GE. Similar to the gate insulating film GI, the first interlayer insulating film ILD1 may include silicon nitride (SiN). x ), silicon dioxide (SiO) x ), silicon oxynitride (SiO) x N y ) and aluminum oxide (AlO x At least one of the following.

[0107] The source electrode SE and drain electrode DE can be located on the first interlayer insulating film ILD1. The source electrode SE can pass through the gate insulating film GI and the first interlayer insulating film ILD1 and contact the first contact area of ​​the semiconductor pattern SCL. The drain electrode DE can pass through the gate insulating film GI and the first interlayer insulating film ILD1 and contact the second contact area of ​​the semiconductor pattern SCL.

[0108] In the above embodiments, the source electrode SE and drain electrode DE of the sixth transistor T6 are separate electrodes that pass through the gate insulating film GI and the first interlayer insulating film ILD1 and are electrically connected to the semiconductor pattern SCL. However, this disclosure is not limited to this. The source electrode SE of the sixth transistor T6 may be one of the first contact region and the second contact region adjacent to the channel region of the semiconductor pattern SCL, and the drain electrode DE of the sixth transistor T6 may be the other of the first contact region and the second contact region adjacent to the channel region of the semiconductor pattern SCL. In this case, the drain electrode DE of the sixth transistor T6 can be electrically connected to some configurations of the display element portion DPL through separate connection means including contact electrodes, etc.

[0109] The second interlayer insulating film ILD2 can be located on the source electrode SE and the drain electrode DE. Similar to the first interlayer insulating film ILD1 and the gate insulating film GI, the second interlayer insulating film ILD2 can include an inorganic material. The inorganic material can include, for example, silicon nitride (SiN). x ), silicon dioxide (SiO) x ), silicon oxynitride (SiO) x N y ) and aluminum oxide (AlO x Such an example is at least one of the materials used in the configuration of the first interlayer insulating film ILD1 and the gate insulating film GI. According to an exemplary embodiment, the second interlayer insulating film ILD2 may include an organic material.

[0110] The first conductor CL1 can be located on the second interlayer insulating film ILD2 and can be electrically connected to the source electrode SE through a contact hole passing through the second interlayer insulating film ILD2.

[0111] The second conductor CL2 can be located on the second interlayer insulating film ILD2 and can be electrically connected to the drain electrode DE by passing through the contact hole of the second interlayer insulating film ILD2.

[0112] The first conductor CL1 and the second conductor CL2 can be paths through which electrical signals can flow. Specifically, the second conductor CL2 can be a bridging electrode that electrically connects the drain electrode DE of the sixth transistor T6 to some configuration of the display element portion DPL. According to an example, the first conductor CL1 and the second conductor CL2 can include at least one of molybdenum (Mo), tungsten (W), neodymium aluminum (AlNd), titanium (Ti), aluminum (Al), and silver (Ag).

[0113] A protective film PSV can be provided on the first conductor CL1 and the second conductor CL2. The protective film PSV can be provided in the form of an organic insulating film, an inorganic insulating film, or an organic insulating film disposed on an inorganic insulating film.

[0114] The protective film PSV may include a first contact hole CH1 that exposes the area of ​​the second conductor CL2.

[0115] The first contact hole CH1 can be the path through which the electrical signal supplied by the sixth transistor T6 is transmitted.

[0116] The display element portion (DPL) may include a pixel-defining film (PDL) and a light-emitting element (EL).

[0117] Pixel-limiting film (PDL) can define the position of light-emitting elements (ELs).

[0118] Pixel-defining film (PDL) may include organic materials. According to examples, the pixel-defining film (PDL) may include at least one selected from acrylic resin, epoxy resin, phenolic resin, polyamide resin, and polyimide resin.

[0119] The light-emitting element EL may include a first electrode AE, an emitting layer EML, and a second electrode CE. The light-emitting element EL may be located on the protective film PSV in the first display area A1.

[0120] One of the first electrode AE ​​and the second electrode CE can be an anode electrode, while the other can be a cathode electrode. When the light-emitting element EL is a front-emitting organic light-emitting diode, the first electrode AE ​​can be a reflective electrode, and the second electrode CE can be a transmissive electrode. The following description will use the case where the light-emitting element EL is a front-emitting organic light-emitting diode and the first electrode AE ​​is an anode electrode as an example.

[0121] The first electrode AE ​​can be located on the protective film PSV in the first display area A1. The first electrode AE ​​can be electrically connected to the second wire CL2 through the first contact hole CH1. The first electrode AE ​​can include a reflective film that can reflect light or a transparent conductive film disposed above or below the reflective film. For example, the first electrode AE ​​can be configured with a plurality of films including: a lower transparent conductive film formed of indium tin oxide (ITO); a reflective film formed of silver (Ag) provided on the lower transparent conductive film; and an upper transparent conductive film formed of indium tin oxide (ITO) provided on the reflective film. At least one of the transparent conductive film and the reflective film can be electrically connected to the drain electrode DE of the sixth transistor T6.

[0122] The emission layer EML can be disposed in the region defined by the pixel-defined film PDL. The emission layer EML can define the emission region EMA in which light is emitted. The emission layer EML can include organic and / or inorganic materials.

[0123] Specifically, the emitting layer EML can have a multilayer thin-film structure including at least a light-generating layer. The emitting layer EML may include: a hole injection layer for injecting holes; a hole transport layer with excellent hole transport performance and used to increase the chance of hole-electron recombination by suppressing the movement of unbound electrons in the light-generating layer; a light-generating layer that emits light through the recombination of injected electrons and holes; a hole blocking layer for suppressing the movement of unbound holes in the light-generating layer; an electron transport layer for smoothly transporting electrons to the light-generating layer; and an electron injection layer for injecting electrons. When an electrical signal is applied to the emitting layer EML as described above, light can be emitted. The color of the light generated in the emitting layer EML can be one of red, green, blue, and white, but the exemplary embodiments are not limited to this. For example, the color of the light generated in the emitting layer EML can be one of magenta, cyan, and yellow.

[0124] The second electrode CE can be provided on the emitter layer EML. The second electrode CE can be provided in a flat plate shape on the first display area A1, but is not limited thereto. The second electrode CE can include a transparent conductive material such as a transparent conductive oxide selected from indium tin oxide (ITO), indium zinc oxide (IZO), aluminum zinc oxide (AZO), gallium-doped zinc oxide (GZO), zinc tin oxide (ZTO), gallium tin oxide (GTO), and fluorine-doped tin oxide (FTO). When the light-emitting element EL is a back-emitting organic light-emitting diode, the second electrode CE can include a semi-transparent conductive material such as magnesium (Mg), silver (Ag), or an alloy of magnesium (Mg) and silver (Ag).

[0125] The thin-film encapsulation film (TFE) can be located on the second electrode (CE). The TFE can include multiple insulating films covering the light-emitting element (EL). Specifically, the TFE can include at least one inorganic film and / or at least one organic film. For example, the TFE can have a structure in which inorganic and organic films are alternately stacked.

[0126] The cover plate PTL can be located on the rear surface of the base SUB. The cover plate PTL may include a heat dissipation layer HSL and a cushioning layer CUS.

[0127] refer to Figure 5 The heat dissipation layer HSL is located on the lower surface of the pad layer CUS, but is not limited thereto. According to an exemplary embodiment, the pad layer CUS may be located on the lower surface of the heat dissipation layer HSL.

[0128] The cushioning layer CUS comprises an elastically deformable material to mitigate external impacts applied to the display device 1. For example, the cushioning layer CUS may include thermoplastic elastomers, polystyrene, polyolefins, polyurethane thermoplastic elastomers, polyamides, synthetic rubbers, polydimethylsiloxane, polybutadiene, polyisobutylene, poly(styrene-butadiene-styrene), polyurethane, polychloroprene, polyethylene, silicone, and combinations thereof, but exemplary embodiments are not limited to the examples described above. A suitable material for the cushioning layer CUS can be selected from any elastic material, as long as it does not affect the image displayed on the display panel DP.

[0129] The heat dissipation layer HSL can perform heat dissipation on various configurations of the display device 1. The heat dissipation layer HSL may include a material with high thermal conductivity. According to an example, the heat dissipation layer HSL may include graphite.

[0130] When light and heat are applied, the heat dissipation layer HSL can exhibit high light absorption. As mentioned above, the heat dissipation layer HSL may include graphite. Therefore, the heat dissipation layer HSL is typically dark in color, and as a result, it exhibits high light absorption.

[0131] The sensor SR can be located on the substrate portion BS and can correspond to and / or overlap with the second display area A2 of the display panel DP. As described above, elements of the display device 1, such as the layers and films of the display panel DP, can have a higher transmittance in the second display area A2 than in the first display area A1. Therefore, light loss applied to the second display area A2 can be minimized, and light can be provided to the sensor SR.

[0132] However, according to an exemplary embodiment, the sensor SR may be located in the first display area A1, but the location of the sensor SR is not limited to the specific area described above. Hereinafter, an example of a sensor SR located in the second display area A2 will be described.

[0133] Because the second display area A2 has a higher transmittance than other areas such as the first display area A1, the second display area A2 can be referred to as a transmissive area.

[0134] Multiple insulating films (e.g., first interlayer insulating film ILD1, second interlayer insulating film ILD2, etc.) corresponding to the second display area A2 allow the applied light to be transmitted. The refractive index of each layer corresponding to the second display area A2 can be different from the refractive index of the adjacent layers.

[0135] refer to Figure 6 According to an exemplary embodiment, the display device 1 may further include a third conductor CL3 located in the second display area A2. The third conductor CL3 may be disposed on the second interlayer insulating film ILD2 in the second display area A2.

[0136] When the sensor SR is configured to perform sensing functions other than the illuminance sensor (e.g., proximity sensor), the third wire CL3 can be provided in the second display area A2.

[0137] The third conductor CL3 can be referenced above. Figure 4 The described storage capacitor Cst has its upper electrode or initial power supply line IPL. Alternatively, the third conductor CL3 can be wiring used to electrically connect any of the various configurations contained in the pixel PXL.

[0138] However, according to an exemplary embodiment, the third conductor CL3 may not be located in the second display area A2, but the exemplary embodiment is not limited to the configuration shown in the drawings or the above embodiments.

[0139] refer to Figure 7 The display device 1 may include an opening OPN to minimize light loss transmitted in the second display area A2. The opening OPN may be formed by removing a portion of the insulating film corresponding to the second display area A2. According to an example, the opening OPN may be formed by removing a portion of the first interlayer insulating film ILD1, the second interlayer insulating film ILD2, the protective film PSV, and the pixel defining film PDL.

[0140] Additionally, when an opening OPN is formed in the second display area A2, an intermediate layer CTL can be provided in the form of filling the opening OPN. According to examples, the intermediate layer CTL can be an air layer or an optically transparent adhesive layer to minimize the loss of transmitted light. However, the intermediate layer CTL is not limited to the examples described above.

[0141] refer to Figure 8 The display device 1 may include an opening OPN to minimize light loss transmitted in the second display area A2, and the thin-film encapsulation film TFE may be provided in the form of filling the interior of the opening OPN. In this case, the thin-film encapsulation film TFE may include a material with high light transmittance to minimize light loss through the opening OPN.

[0142] The sensor SR can be an optical module configured to sense light to obtain information related to incident light. According to examples, the sensor SR can be at least one of an optical fingerprint sensor, an illuminance sensor, a camera module, an image capture device, a flash, an optical sensor, a proximity sensor, an indicator, and a solar panel.

[0143] The sensor SR can be located in an area corresponding to the region where the heat dissipation layer HSL is not located, so the sensor SR and the heat dissipation layer HSL do not overlap. As mentioned above, the heat dissipation layer HSL can have high light absorption. Therefore, most of the light supplied from the region corresponding to the heat dissipation layer HSL (e.g., the first display area A1) may be absorbed by the heat dissipation layer HSL. The sensor SR can be a device for identifying light information, and the heat dissipation layer HSL may not be located in the region corresponding to the region where the sensor SR is located (e.g., the second display area A2).

[0144] An anti-reflection member in the form of a reflection reduction member 100 may be located on the rear surface of the substrate SUB and may overlap with the second display area A2 and the sensor SR. The reflection reduction member 100 can reduce the amount of reflected light provided through the upper surface of the second display area A2.

[0145] When viewed from above, the area of ​​the reflection reduction component 100 can be substantially equal to or greater than the area of ​​the sensor SR.

[0146] The reflection reduction component 100 can reduce the reflection of external light.

[0147] External light refers to ambient light applied from outside the display device 1. External light can be provided to the internal area of ​​the display device 1 through the second display area A2.

[0148] Internal light refers to the light generated inside the display device 1. Internal light refers to the light emitted from the light-emitting element EL contained in the display element portion DPL.

[0149] The reflection reduction component 100 can reduce the reflection of external light that can be guided to the display panel DP.

[0150] External light applied through the second display area A2 can be provided to the sensor SR along the third direction DR3. If the reflection reduction member 100 is not provided, the reflected light from the external light can be output on a surface of the substrate SUB facing the sensor SR. In this case, the output reflected light can be provided to the pixel circuit section PCL, and this may cause degradation of the individual configurations of the sixth transistor T6, which includes the pixel circuit section PCL.

[0151] The reflection reduction member 100 disposed between the sensor SR and the display panel DP can prevent or at least reduce light reflection, and allows and / or facilitates light to pass through the reflection reduction member 100. Therefore, the reflection reduction member 100 can reduce the degradation of various configurations of the display device 1, such as the pixel circuit section PCL and the display element section DPL, caused by the effects of reflection of external and internal light.

[0152] In the following text, a detailed exemplary structure of the reflection reduction component 100 and its effects will be described with reference to simplified diagrams.

[0153] Figures 9 to 12 It is along Figure 1 The line I-I' intercepted for illustration Figure 5 A schematic cross-sectional view of an exemplary embodiment of a reflection reduction component.

[0154] For the sake of convenience, Figures 9 to 18 The above references are briefly shown. Figure 5 The exemplary internal configurations of the described display device 1.

[0155] refer to Figures 9 to 12 , Figure 5 The reflection reduction component 100 may include an anti-reflective (AR) coating.

[0156] AR coating can refer to applying an anti-reflective composition to one surface of a layer. Here, the applied composition can have low reflectivity and high transmittance. AR coatings can be implemented as a single layer or a composite layer. According to examples, the composition for an AR coating may include at least one of SiO2, ZiO2, Al2O3, and TiO2. However, AR coatings are not limited to the examples above, and various known AR coating compositions or embodiments can be applied to this disclosure.

[0157] This AR coating can form an anti-reflective film.

[0158] refer to Figure 9 External light applied through the second display area A2 can be provided to the first anti-reflective film 120.

[0159] When viewed from above, the sensor SR can be arranged within the second display area A2. The sensor SR can receive a large amount of light by receiving external light passing through the relatively large area of ​​the second display area A2. Therefore, the accuracy of information related to the sensed light can be improved. However, as the second display area A2 increases, the amount of reflected light may also increase due to the increased amount of external light.

[0160] The size of the second display area A2 can correspond to the size of the first anti-reflective film 120. The size of the second display area A2 can be larger than the size of the upper surface of the sensor SR. The size of the first anti-reflective film 120 can be larger than the size of the upper surface of the sensor SR. The first anti-reflective film 120 covers an area larger than the sensor SR, and thus can reduce the amount of reflected light from external light that may be applied to the pixel circuit portion PCL and / or the display element portion DPL.

[0161] A predetermined air gap can be formed between the sensor SR and the first anti-reflective film 120.

[0162] At least a portion of the first antireflective film 120 and the sensor SR can be spaced apart from each other. In this case, the manufacturing processes related to the sensor SR and the manufacturing processes related to the first antireflective film 120 can be performed separately, thereby increasing the convenience of the processing design.

[0163] refer to Figure 10 The display device 1 may further include a second anti-reflective film 140.

[0164] The second antireflective film 140 may be an AR coating similar to the first antireflective film 120.

[0165] The second antireflective film 140 may face the first antireflective film 120. The second antireflective film 140 may be located on the surface of the sensor SR facing the first antireflective film 120. For example, the second antireflective film 140 may be provided under a surface not present in the cover plate PTL of the substrate SUB. The second antireflective film 140 may substantially cover the entire upper surface of the sensor SR.

[0166] The second anti-reflective film 140 is coated on the sensor SR, and thus can reduce the amount of reflected light from external light that may be generated on the upper surface of the sensor SR. Therefore, the first anti-reflective film 120 and the second anti-reflective film 140 can reduce the degradation of various configurations of the display device 1, such as the pixel circuit section PCL and the display element section DPL.

[0167] The size of the first anti-reflective film 120 can be larger than the size of the second anti-reflective film 140. Therefore, even if a small amount of light reflection occurs that may occur in the second anti-reflective film 140, the resulting reflected light can be prevented from being applied to the pixel circuit portion PCL or the display element portion DPL. In an exemplary embodiment, the size of the first anti-reflective film 120 can be smaller than the size of the second anti-reflective film 140.

[0168] refer to Figure 11 The size of the first antireflective film 120 can correspond to the size of the second antireflective film 140. When viewed from above, the size of the first antireflective film 120 can be substantially the same as the size of the second antireflective film 140.

[0169] An air gap 160 can be formed between the first antireflective film 120 and the second antireflective film 140.

[0170] The second antireflective film 140 can be adjacent to the cover plate PTL in the first direction DR1. In this case, similar to the case where the size of the first antireflective film 120 is larger than the size of the second antireflective film 140, the impact on the various configurations in the display device 1 caused by reflected light from external light that may be generated in the second antireflective film 140 can be reduced.

[0171] In other words, when reflected light is generated on the surface of the second anti-reflective film 140, the generated reflected light can be guided to the first anti-reflective film 120 or the cover plate PTL, and ultimately the impact on the pixel circuit part PCL or the display element part DPL can be reduced.

[0172] Compared with traditional display devices, according to Figure 11 The display device 1, including a first antireflective film 120 and a second antireflective film 140, can have improved and / or relatively low reflectivity. When a predetermined amount of external light is applied, the display device 1 including the first antireflective film 120 and the second antireflective film 140 (where the area of ​​the first antireflective film 120 corresponds to the area of ​​the second antireflective film 140) can have a reflectivity of about 3.5% to about 4.5%, and preferably, about 3.99%. The reflectivity experiment is conducted in a dark room using a standard light source (e.g., standard light source D65) and a beam splitter. However, this experiment can be performed using light source A or C and different types of integrating spheres other than the beam splitter.

[0173] Conversely, when the aforementioned amount of external light is applied, the display device without an anti-reflective film can have a reflectivity of approximately 7.46%. Therefore, the display device 1 can have improved reflectivity by having a first anti-reflective film 120 and a second anti-reflective film 140.

[0174] refer to Figure 12 A first anti-reflective film 120 can be coated on the rear surface of the substrate SUB and on the upper surface of the sensor SR. A first surface of the first anti-reflective film 120 can contact the substrate SUB, and a second surface of the first anti-reflective film 120 can contact the sensor SR. The second surface can be opposite to the first surface. In this configuration, an air gap may not be formed between the sensor SR and the substrate SUB.

[0175] When the first anti-reflective film 120 is contained between the substrate SUB and the sensor SR without any air gap between them, the amount of reflected light from the applied light can be reduced.

[0176] Figures 13 to 15 It is along Figure 1 The line I-I' intercepted for illustration Figure 5 A schematic cross-sectional view of other exemplary embodiments of the reflection reduction component.

[0177] refer to Figures 13 to 15 , Figure 5 The reflection reduction component 100 may include filler 220.

[0178] Filler 220 may comprise a colorless material having a predetermined or greater transmittance. According to examples, filler 220 may comprise epoxy resins, polyurethane acrylates, epoxy acrylates, or silicones (e.g., bisphenol A type epoxy resins, cycloaliphatic epoxy resins, phenyl silicone resins, rubbers, acrylic epoxy resins, aliphatic urethane acrylates, etc.). Alternatively, filler 220 may comprise a material selected from the group consisting of hexamethyldisiloxane, octamethyltrisiloxane, decamethyltetrasiloxane, dodecylpentasiloxane, and polydimethylsiloxane.

[0179] However, the type of packing 220 is not limited to the examples above, and various known packings can be applied.

[0180] refer to Figure 13 The filler 220 may be located on the rear surface of the substrate SUB. For example, the filler 220 may be located on the rear surface of the substrate SUB where the cover plate PTL is not located.

[0181] The packing 220 can be spaced apart from the sensor SR. Therefore, a predetermined air gap can be formed between the packing 220 and the sensor SR.

[0182] When viewed from above, the sensor SR can be located on one surface of the substrate portion BS to correspond to and / or overlap with the filler 220. When viewed from a third-direction DR3, the area (size) of the filler 220 can be larger than the area (size) of the sensor SR. The filler 220 can reduce the degradation of the pixel circuit portion PCL and the display element portion DPL caused by, for example, light reflected by a portion of the display device 1 disposed below the filler 220.

[0183] The refractive index of filler 220 can be different from that of the substrate SUB.

[0184] The refractive index of filler 220 can be substantially equal to or greater than about 1.3 and substantially equal to or less than about 1.7. The refractive index of substrate SUB can be substantially equal to or greater than about 1.4 and substantially equal to or less than about 1.6.

[0185] The difference between the refractive index of the filler 220 and the refractive index of the substrate SUB is substantially equal to or less than a predetermined difference, and thus the amount of external light reflected from the second display area A2 can be reduced. For example, if the filler 220 is not provided, the difference between the refractive index of the air between the sensor SR and the substrate SUB and the refractive index of the substrate SUB can be substantially equal to or greater than about 0.4 and substantially equal to or less than about 0.6. In this case, due to the relatively high refractive index difference, a large amount of light may be reflected by the surface between the air and the substrate SUB.

[0186] refer to Figure 14 An air gap may not be formed between the filler 220 and the sensor SR.

[0187] The refractive index of air can be approximately 1, and each configuration can have a refractive index at least greater than approximately 1. In the absence of an air gap between the filler 220 and the sensor SR, the difference in refractive index between the layers corresponding to the second display area A2 can be reduced, thereby reducing the degree of reflection of applied external light.

[0188] Specifically, the refractive index of the sensor SR in contact with the filler 220 can be at least greater than the refractive index of air. Because the refractive index difference between the filler 220 and the sensor SR is at least less than the refractive index difference between the filler 220 and air, the amount of external light reflected can be reduced when no air gap is formed between the filler 220 and the sensor SR.

[0189] Compared to traditional display devices, including those based on Figure 14 The display device 1 with filler 220 in the illustrated embodiment can have improved and / or relatively low reflectivity. For example, as described above, when a certain amount of external light is applied to the sensor SR, the display device excluding the reflection reduction member 100 can have a reflectivity of approximately 7.46%. However, as... Figure 14 As shown, when a certain amount of external light is applied to the sensor SR, the display device 1, including the filler 220 and without an air gap between the filler 220 and the sensor SR, can have a reflectivity of approximately 0.02%. This could mean that compared to conventional display devices, including… Figure 14 The display device 1 with filler 220 can have improved reflectivity.

[0190] refer to Figure 15 The dimensions of the packing 220 can correspond to the dimensions of the sensor SR. When viewed from above, the dimensions of the packing 220 can be substantially the same as the dimensions of the sensor SR. Figure 15 As shown, a predetermined air gap can be formed between the filler 220 and the sensor SR.

[0191] Compared with traditional display devices, including Figure 15 The display device 1 with filler 220 can have improved and / or relatively low reflectivity. When a certain amount of external light is applied to the sensor SR, the display device 1, including filler 220 and forming an air gap between filler 220 and sensor SR, can have a reflectivity substantially equal to or less than about 7%. Such a reflectivity is a value less than about 7.46%, which is the reflectivity data obtained in experiments conducted on a display device 1 without filler 220. The display device 1 can have improved reflectivity with respect to external light.

[0192] The cover plate PTL can be disposed on the rear surface of the substrate SUB where the packing 220 is not located. The cover plate PTL can be located on one area of ​​the rear surface of the substrate SUB, and the packing 220 can be located on another area of ​​the substrate SUB.

[0193] Therefore, the cover plate PTL or filler 220 can reduce or prevent the impact on the pixel circuit section PCL and / or the display element section DPL caused by reflected light generated on the upper surface of the sensor SR.

[0194] Figures 16 to 18 It is along Figure 1 The line I-I' intercepted for illustration Figure 5 A schematic cross-sectional view of another exemplary embodiment of the structure for reducing reflection of the component.

[0195] refer to Figures 16 to 18 , Figure 5 The reflection reduction component 100 may include at least one of a first antireflective film 120 and a second antireflective film 140, and may further include filler 220.

[0196] The reflection reduction component 100 applied to the display device 1 may include a first reflection reduction component and a second reflection reduction component.

[0197] The first reflection-reducing component can be filler 220. (See reference above.) Figures 13 to 15 The filler 220 can be a colorless material with a predetermined or greater transmittance.

[0198] The second reflection-reducing component may be at least one of the first anti-reflective film 120 and the second anti-reflective film 140. The second reflection-reducing component may be an AR coating.

[0199] refer to Figure 16 The filler 220 can be placed on the rear surface of the cover plate PTL of the base SUB.

[0200] The second anti-reflective film 140 may be located on the upper surface of the sensor SR. The second anti-reflective film 140 may be coated on the surface of the sensor SR facing the substrate SUB.

[0201] The area of ​​the filler 220 may overlap with the area of ​​the sensor SR. When viewed from above, the area of ​​the filler 220 may be substantially equal to or at least larger than the area of ​​the sensor SR.

[0202] The area of ​​the second antireflective film 140 may overlap with the area of ​​the sensor SR. When viewed from above, the area of ​​the second antireflective film 140 may be substantially equal to or at least larger than the area of ​​the sensor SR.

[0203] When viewed from above, the second anti-reflective film 140 and the filler 220 can be located in the second display area A2. As described above, external light can be applied through the second display area A2, and the second anti-reflective film 140 and the filler 220 can be arranged continuously to further reduce the reflection of external light.

[0204] refer to Figure 17 A predetermined air gap 180 can be formed between the filler 220 and the second antireflective film 140. The areas of the filler 220 and the second antireflective film 140 can overlap each other. The area of ​​the filler 220 can be substantially the same as the area of ​​the second antireflective film 140, and the second antireflective film 140 and the filler 220 can be at least physically spaced apart, and the predetermined air gap 180 can be provided.

[0205] refer to Figure 18 The display device 1 may include a first anti-reflective film 120 and filler 220 but not a second anti-reflective film 140.

[0206] The first antireflective film 120 may be located between the substrate SUB and the filler 220. According to an example, the first antireflective film 120 may be coated on the rear surface of the substrate SUB without the cover plate PTL.

[0207] The filler 220 can be located between the substrate SUB and the sensor SR, and can also be located between the first antireflective film 120 and the sensor SR.

[0208] The filler 220 may not be spaced apart from the first antireflective film 120. In this case, no air gap may be formed between the filler 220 and the first antireflective film 120.

[0209] Each of the area of ​​the filler 220 and the area of ​​the first anti-reflective film 120 may have a value that is substantially equal to or at least greater than the area of ​​the upper surface of the sensor SR, and thus may reduce the amount of external light reflected through the second display area A2.

[0210] In an exemplary embodiment, the display device 1 may include all of the first antireflective film 120, the second antireflective film 140, and the filler 220. According to the exemplary embodiment, the first antireflective film 120 may be located on the rear surface of the substrate SUB, the second antireflective film 140 may be located on the sensor SR, and the filler 220 may be located between the first antireflective film 120 and the second antireflective film 140.

[0211] Although certain exemplary embodiments and implementations have been described herein, other embodiments and modifications will be apparent from the description. Therefore, the inventive concept is not limited to these embodiments, but rather to the broader scope of the appended claims and various obvious modifications and equivalent arrangements that will be obvious to those skilled in the art.

Claims

1. A display device, wherein, The display device includes: The display panel includes a substrate having opposing first and second surfaces and a light-emitting element disposed on the first surface of the substrate. The display panel has a transmissive region through which light is transmitted from outside the display device. A sensor, facing a second surface of the substrate and configured to sense light received through the transmission region; and An anti-reflective component is disposed between the sensor and the substrate and allows light to pass through in order to reduce the reflection of applied light. The anti-reflection component includes a first reflection-reducing component and a second reflection-reducing component, wherein, The first reflection-reducing member directly contacts the second surface of the substrate facing the sensor, and the second reflection-reducing member directly contacts the surface of the sensor facing the substrate, such that no air gap is formed between the second reflection-reducing member and the sensor. The first reflection-reducing member and the second reflection-reducing member are not spaced apart such that no air gap is formed between the first reflection-reducing member and the second reflection-reducing member, and wherein, When viewed in a direction orthogonal to the first and second surfaces of the substrate, the anti-reflective member overlaps with the transmissive region.

2. The display device according to claim 1, wherein, The sensor overlaps with the anti-reflective component.

3. The display device according to claim 1, wherein, The display device further includes: The substrate portion faces the base. The sensor is mounted on the base portion.

4. The display device according to claim 1, wherein, The display device further includes: A cover plate is disposed on the second surface of the substrate, which does not overlap with the transmission area and the sensor.

5. The display device according to claim 1, wherein, The anti-reflective component has a refractive index different from that of the substrate.

6. The display device according to claim 5, wherein, The refractive index of the antireflective component is equal to or greater than 1.3 and equal to or less than 1.

7.

7. The display device according to claim 1, wherein, One of the first reflection-reducing component and the second reflection-reducing component includes at least one of a first anti-reflective film and a second anti-reflective film, and the first anti-reflective film and the second anti-reflective film include an anti-reflective coating. The other of the first and second reflection-reducing components includes a filler having a predetermined or greater transmittance.

8. The display device according to claim 7, wherein, The sensor overlaps with the first reflection reduction component and the second reflection reduction component.

9. The display device according to claim 1, wherein, The first reflection reduction component includes a first anti-reflective film coated on the second surface of the substrate facing the sensor, and The first anti-reflective film is an anti-reflective coating.

10. The display device according to claim 9, wherein, The second reflection reduction component includes a second anti-reflective film coated on the surface of the sensor facing the substrate, and The second antireflective film includes another antireflective coating.

11. The display device according to claim 10, wherein, The first antireflective film overlaps with the second antireflective film.

12. The display device according to claim 11, wherein, The second antireflective film is disposed in the area where the first antireflective film is located.

13. The display device according to claim 1, wherein, The sensor includes at least one of an optical fingerprint sensor, an illuminance sensor, a proximity sensor, a camera module, and a light sensor.

14. The display device according to claim 1, wherein, The first reflection-reducing component includes a filler having a predetermined or greater transmittance, and the second reflection-reducing component includes an anti-reflective coating.

Images