Display device, electronic device including display device, and manufacturing method of display device

Abstract

This display device comprises: a display panel including a first pixel and a second pixel spaced apart from each other; a light control layer disposed on the display panel and including an alignment key layer and light blocking layers including a first light blocking part and a second light blocking part; and a window layer disposed on the light control layer. The first light blocking part surrounds the entire first pixel in a plan view. The second light blocking part is open at a first side of the second pixel along a first direction and surrounds a second side of the first pixel along a second direction different from the first direction. The display device is configured to operate in a first mode, in which the first pixel provides light, or a second mode, in which the second pixel provides light. The alignment key layer is disposed on the same layer as at least one of the light blocking layers.

Description

Display device, electronic device including display device, and method for manufacturing display device

[0001] The present disclosure relates to a display device, an electronic device including the display device, and a method for manufacturing the display device.

[0002] With the recent surge in interest in information displays, research and development on display devices is ongoing. Display devices can be applied to a variety of fields, including automotive infotainment systems.

[0003] The display device may be manufactured based on a plurality of processes. Therefore, it may be desirable for the layers of the display device to be precisely aligned with each other during the time period during which the processes are performed.

[0004] The above information disclosed in this Background section is intended to enhance understanding of the background of the present disclosure and therefore may not constitute prior art.

[0005] Embodiments of the present disclosure can provide a display device and a method for manufacturing the display device, in which the manufacturing process is simplified and the process cost can be reduced.

[0006] Embodiments of the present disclosure can provide a display device and a method of manufacturing the display device, which can improve user stability and visibility characteristics so as to be suitably applied to a vehicle infotainment system.

[0007] Embodiments of the present disclosure can provide a display device and a method of manufacturing the display device, in which an alignment key for proceeding with a manufacturing process can be suitably provided.

[0008] Embodiments of the present disclosure can provide a display device and a method of manufacturing the display device, in which dead space can be reduced and a viewable area can be expanded.

[0009] According to one or more embodiments, a display device includes a display panel including a first pixel and a second pixel spaced apart from the first pixel; a light control layer disposed on the display panel, the light control layer including light blocking layers including a first light blocking portion and a second light blocking portion and an alignment key layer; and a window layer disposed on the light control layer. The first light blocking portion entirely surrounds the first pixel when viewed in a plan view. The second light blocking portion opens a first side of the second pixel along a first direction and surrounds a second side of the first pixel along a second direction different from the first direction. The display device is configured to operate in a first mode in which the first pixel provides light or in a second mode in which the second pixel provides light. The alignment key layer is disposed in the same layer as at least one of the light blocking layers.

[0010] In some embodiments, the window layer may be configured to be aligned by utilizing the alignment key layer.

[0011] In some embodiments, the light blocking layers may include a lower light blocking layer adjacent to the display panel and an upper light blocking layer adjacent to the window layer.

[0012] In some embodiments, the alignment key layer may be disposed on the same layer as the lower light-blocking layer.

[0013] In some embodiments, a structure may not be disposed on the same layer as the light blocking layers on top of the alignment key layer.

[0014] According to an embodiment, the display device may further include an insulating layer disposed on the alignment key layer, wherein the insulating layer may include a curved portion in an area overlapping the alignment key layer when viewed in a plane.

[0015] In some embodiments, the alignment key layer may be disposed on the same layer as the upper light blocking layer.

[0016] According to an embodiment, the display device may further include a passivation layer as a base on which the light blocking layers are arranged; a protective layer covering the light blocking layers; and an insulating layer arranged on the protective layer. The light blocking layers may include four different layers.

[0017] According to an embodiment, the display device may further include a display area and a non-display area surrounding the display area. The alignment key layer may not overlap with the floating conductive structure when viewed in a plane.

[0018] According to an embodiment, the display device may further include a display area and a non-display area surrounding the display area. The display panel may include a backplane wiring arranged within the non-display area, and the backplane wiring may have a linear structure. The alignment key layer may not overlap with a conductive structure having an island shape when viewed in a plan view.

[0019] According to an embodiment, the display device may further include a sensing area and a non-sensing area surrounding the sensing area. The display panel may further include a display layer and a touch sensor layer disposed on the display layer and including a sensing electrode. The touch sensor layer may include a sensing wire disposed within the non-sensing area and electrically connected to the sensing electrode, and the sensing wire may have a linear structure. The alignment key layer may not overlap with a conductive structure having an island shape when viewed in a plan view.

[0020] According to an embodiment, the display device may further include a display area and a non-display area surrounding the display area. The non-display area may include a dummy area arranged around the display area. A dummy light-blocking layer may be arranged in the same layer as at least one of the light-blocking layers within the dummy area.

[0021] According to an embodiment, the alignment key layer may be arranged within the dummy area.

[0022] In some embodiments, the alignment key layer may include a relief pattern.

[0023] In some embodiments, the alignment key layer may include an engraved pattern.

[0024] Depending on the embodiment, the light blocking layers may include one or more of a black matrix material or an organic black material.

[0025] In an embodiment, at least one of the alignment key layer and the light blocking layers disposed in the same layer as the alignment key layer may include the black matrix material, and some other of the light blocking layers disposed in a different layer from the alignment key layer may include the organic black material.

[0026] According to an embodiment, the display device may further include a polarizing layer disposed between the light control layer and the window layer; and a black matrix layer disposed under the window layer. The black matrix layer and the alignment key layer may overlap each other when viewed in a plane.

[0027] According to an embodiment, the display panel may include a base layer, and the display device may further include a sensor disposed below the base layer within the display area.

[0028] In some embodiments, the light-blocking layer may include a lactam material.

[0029] According to an embodiment, the first light blocking portion may have a closed loop shape, and the second light blocking portion may have a shape extending in one direction.

[0030] In some embodiments, the display device may be implemented in a co-driver display on an in-vehicle infotainment system.

[0031] According to one or more embodiments of the present disclosure, a display device may include: a display panel that provides light; a light control layer that is disposed on the display panel and includes a light blocking layer that guides a portion of the light provided from the display panel and blocks at least another portion of the light; and an alignment key layer that is disposed in the same layer as at least a portion of the light blocking layer and includes the same material; and a window layer that is configured to be aligned using the alignment key layer and is disposed on the light control layer.

[0032] According to one or more embodiments of the present disclosure, a method for manufacturing a display device may include the steps of: providing a display panel; providing a light control layer including an alignment key layer and a light blocking layer on the display panel; and providing a window layer on the light control layer using the alignment key layer. The light blocking layer may be configured to block or guide light provided by the display panel. The alignment key layer may be patterned in the same process as at least a portion of the light blocking layer.

[0033] In some embodiments, the light blocking layer may include a lower light blocking layer closest to the display panel and an upper light blocking layer closest to the window layer. The alignment key layer may be embedded in the light control layer.

[0034] According to an embodiment, the manufacturing method may further include a step of disposing a polarizing layer on the light control layer. The step of providing the window layer may include a step of identifying a position of the alignment key layer using light passing through the polarizing layer.

[0035] However, the present disclosure is not limited to the aspects and features described above, and the foregoing and additional aspects and features will be set forth in part in the detailed description that follows with reference to the drawings, and in part will be obvious therefrom or may be learned by practicing one or more of the presented embodiments of the present disclosure.

[0036] According to an embodiment of the present disclosure, a display device and a method for manufacturing the display device can be provided in which the manufacturing process is simplified and the process cost can be reduced.

[0037] According to an embodiment of the present disclosure, a display device and a method of manufacturing the display device can be provided that can improve user stability and visibility characteristics so as to be suitably applied to a vehicle infotainment system.

[0038] According to an embodiment of the present disclosure, a display device and a method for manufacturing the display device can be provided, in which an alignment key for proceeding with a manufacturing process can be suitably provided.

[0039] According to an embodiment of the present disclosure, a display device and a method of manufacturing the display device can be provided, in which dead space can be reduced and a viewable area can be expanded.

[0040] The aforementioned and other aspects and features of the present disclosure will be more clearly understood from the following detailed description of illustrative and non-limiting embodiments, which are illustrated with reference to the accompanying drawings.

[0041] Figures 1 and 2 are schematic cross-sectional views showing display devices according to some embodiments.

[0042] Figures 3 and 4 are schematic plan views illustrating display devices according to some embodiments.

[0043] Fig. 5 is a block diagram showing the operation mode of a display device according to an embodiment.

[0044] Fig. 6 schematically illustrates an example in which a display device according to an embodiment is applied to a vehicle electronic device.

[0045] Fig. 7 is a schematic diagram showing a display device according to an embodiment operating in a first mode.

[0046] Fig. 8 is a schematic diagram showing a display device according to an embodiment operating in a second mode.

[0047] FIG. 9 is a schematic diagram showing the path of an image provided when a display device according to an embodiment is applied to a vehicle electronic device.

[0048] Fig. 10 is a schematic plan view showing pixels according to an embodiment.

[0049] Figures 11 to 14 are schematic cross-sectional views showing display devices according to some embodiments.

[0050] Figure 15 is a schematic plan view showing backplane wiring and alignment keys according to an embodiment.

[0051] Fig. 16 is a schematic plan view showing sensing wiring and alignment keys according to an embodiment.

[0052] Fig. 17 is a schematic plan view showing a display device according to an embodiment.

[0053] Figures 18 and 19 are schematic cross-sectional views taken along lines C to C' of Figure 17.

[0054] Fig. 20 is a schematic plan view showing a display device according to an embodiment.

[0055] Figures 21 and 22 are schematic cross-sectional views taken along lines D to D' of Figure 20.

[0056] Figure 23 is a schematic plan view showing a sensor and a cross-sectional structure adjacent thereto according to an embodiment.

[0057] Fig. 24 is a flowchart showing a method for manufacturing a display device according to an embodiment.

[0058] Figures 25 to 27 are schematic cross-sectional views of some process steps illustrating a method for manufacturing a display device according to an embodiment.

[0059] Fig. 28 is a block diagram of an electronic device according to an embodiment.

[0060] Hereinafter, embodiments will be described in more detail with reference to the accompanying drawings, wherein like reference numerals represent like elements throughout the drawings. However, this disclosure may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided as examples to ensure that this disclosure is thorough and complete, and to sufficiently convey the aspects and features of this disclosure to those skilled in the art. Accordingly, processes, elements, and techniques that are not necessary for a full understanding of the aspects and features of this disclosure may be omitted as they may be unnecessary explanations to those skilled in the art. Unless otherwise specified, like reference numerals represent like elements throughout the accompanying drawings and the written description, and redundant descriptions may not be repeated.

[0061] If a particular embodiment can be implemented differently, the specific process sequence may differ from the described sequence. For example, two processes described in succession may be performed simultaneously or substantially simultaneously, or in the reverse order described.

[0062] Furthermore, as will be appreciated by those skilled in the art, considering the entirety of this specification, the various suitable features of the various embodiments of this specification may be combined, partially or fully, with one another, and may technically interact and operate in various suitable ways. Each embodiment may be implemented separately or in combination with one another in any suitable manner, and no limitation is imposed unless otherwise stated or implied.

[0063] The relative sizes, thicknesses, and proportions of elements, layers, and regions in the drawings may be exaggerated or simplified for clarity. Spatially relative terms such as "below," "under," "below," "above," and "above" are used to describe the relationship of one element or feature to another as depicted in the drawings. These spatially relative terms are intended to encompass different orientations in which the device may be used or operated. For example, if the device is turned over in the drawings, an element or feature described as "below" or "below" may be positioned "above" another element or feature. Thus, the terms "below" and "below" can encompass both above and below. The device may also be rotated 90 degrees or positioned in other orientations, and the spatially relative terms used herein should be interpreted accordingly.

[0064] Additionally, it should be noted that the shapes depicted in the drawings may differ in practice, for example, depending on tolerances or manufacturing techniques. Therefore, the embodiments of this specification should not be construed as limited to the specific shapes depicted in the drawings, but rather should be interpreted in light of possible shape variations resulting from manufacturing. Accordingly, the shapes depicted in the drawings may not depict the actual shape of the device area, and this specification is not limited thereto.

[0065] The x-axis, y-axis, and z-axis in a drawing are not limited to the three axes of a Cartesian coordinate system and can be interpreted in a broader sense. For example, the x-axis, y-axis, and z-axis may be orthogonal or substantially orthogonal to each other, or may represent other directions that are not orthogonal to each other.

[0066] Although terms such as "first," "second," and "third" are used to describe various elements, components, regions, layers, and / or sections, it should be understood that they are not limited to these elements. These terms are used to distinguish one element, component, region, layer, or section from another. Accordingly, the first element described below may also be referred to as the second element, and this does not depart from the scope and spirit of this specification.

[0067] When an element or layer is referred to as being "positioned on," "connected to," or "joined to" another element or layer, this means that the element or layer may be positioned, connected to, or joined directly to the other element or layer, or that one or more intervening elements or layers may be present. Similarly, when a layer, region, or element is referred to as being "electrically connected to" another layer, region, or element, this means that the layer, region, or element may be directly electrically connected, or that the layer, region, or element may be indirectly connected through one or more intervening layers, regions, or elements. Furthermore, when an element or layer is referred to as being positioned between two other elements or layers, this means that it may be solely between those two other elements or layers, or that one or more intervening elements or layers may be present.

[0068] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present disclosure. The singular forms “a,” “an,” and “the” are intended to include the plural forms as well, unless the context clearly dictates otherwise. Also, the terms “comprises,” “having,” and the like, as used herein, specify the presence of listed features, integers, steps, operations, components, and / or parts, but do not preclude the presence or addition of one or more other features, integers, steps, operations, components, and / or parts. The term “and / or” as used herein includes one or more combinations of the associated items. For example, “A and / or B” means A alone, B alone, or both A and B. The phrase “at least one” modifies all items in a list and does not modify any individual item in the list. For example, the expressions “at least one of a, b, or c,” “at least one of a, b, and c,” and “at least one selected from the group of a, b, and c” indicate a alone, b alone, c alone, both a and b, both a and c, b and c, or a, b, and c, and variations thereof.

[0069] The terms “substantially” and “approximately” used herein are not terms of degree but rather terms of approximation, and are intended to take into account inherent variability in measurements or calculations that would be apparent to those skilled in the art. Furthermore, the expression “may” used when describing embodiments herein means “one or more embodiments of the present disclosure.” The term “use” used herein may be considered synonymous with the term “utilize.”

[0070] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by a person of ordinary skill in the art to which this specification pertains. Furthermore, terms defined in commonly used dictionaries should be interpreted in a manner consistent with their meaning within the context of the relevant technology and / or this specification, and should not be interpreted in an idealized or overly formal sense unless otherwise defined.

[0071] First, with reference to FIGS. 1 to 4, a display device (DD) according to some embodiments will be described in more detail below.

[0072] Figures 1 and 2 are schematic cross-sectional views illustrating a display device according to some embodiments. Figures 3 and 4 are schematic plan views illustrating a display device according to some embodiments. Figure 3 may illustrate a display layer (DL) according to an embodiment, and Figure 4 may illustrate a touch sensor layer (TSP) according to an embodiment.

[0073] Referring to FIGS. 1 to 4, a display device (DD) provides light in response to electrical signals. The display device (DD) includes a display panel (DP). The display panel (DP) may include a display layer (DL) and a touch sensor layer (TSP). The display device (DD) may further include a light control layer (LCL), a polarizing layer (POL), and a window layer (WD).

[0074] According to an embodiment, the display device (DD) may include a display area (DA), a detection area (SA), a non-display area (NDA), and a non-detection area (NSA).

[0075] The display area (DA) may be an area where light is provided and may be an area where pixels (PXL) are arranged. The non-display area (NDA) may be an area where pixels (PXL) are not arranged. The non-display area (NDA) may include dead space. The non-display area (NDA) may surround at least a portion of the display area (DA) (e.g., may surround the periphery thereof).

[0076] The display layer (DL) can display visual information. The display layer (DL) can include various suitable light sources that provide light. For example, the display layer (DL) can include light-emitting elements (LD) arranged within the display area (DA), and each of the light-emitting elements (LD) can include an organic light-emitting diode (e.g., can be formed of an organic light-emitting diode).

[0077] The sensing area (SA) may be an area capable of detecting a user touch input and may be an area where a sensing electrode (SP) is placed. The non-sensing area (NSA) may be an area where a sensing electrode (SP) is not placed. The non-sensing area (NSA) may surround at least a portion of the sensing area (SA) (e.g., may surround the periphery thereof).

[0078] In some embodiments, the display area (DA) and the detection area (SA) may correspond to each other (e.g., overlap). Accordingly, user touch input may be detected in the area where the image is displayed.

[0079] The touch sensor layer (TSP) may be placed directly on the display layer (DL), or may be placed on the display layer (DL) with a separate layer, such as an adhesive layer or a substrate (or insulating layer), interposed therebetween.

[0080] A touch sensor layer (TSP) can be arranged on a surface on which an image of a display layer (DL) is projected, and can receive a user's touch input. The touch sensor layer (TSP) can obtain information regarding a touch input. The touch sensor layer (TSP) can recognize a touch event of a display device (DD) caused by a user's hand (e.g., a finger) or a separate input means (e.g., a separate input device such as a pen). The touch sensor layer (TSP) can recognize the touch event using a suitable electrostatic capacitance method.

[0081] The touch sensor layer (TSP) can detect a touch input using a mutual capacitance method or a self-capacitance method. For example, the touch sensor layer (TSP) can include a sensing electrode. The sensing electrode can include a Tx (transmitter) electrode pattern and an Rx (receiver) electrode pattern.

[0082] The light control layer (LCL) may include a suitable structure for controlling the path through which light is emitted depending on the operation mode of the display device (DD). For example, the light control layer (LCL) may include light blocking layers (LBP) formed in each of a plurality of layers. The light blocking layers (LBP) may block or guide light provided by the display panel (DP). The operation mode of the display device (DD) is described in more detail below.

[0083] The light control layer (LCL) may include an alignment key layer (ALK) disposed within a non-display area (NDA). The alignment key layer (ALK) may be a structure for aligning at least one of the structures disposed on the light control layer (LCL) during a manufacturing process of the display device (DD).

[0084] In some embodiments, the alignment key layer (ALK) may be a pattern or mark formed at a suitable location (e.g., a predetermined location). The location of the alignment key layer (ALK) may function as a reference point for positioning the window layer (WD).

[0085] The non-display area (NDA) may include a dummy area (DUA). The dummy area (DUA) does not have a light emitting element (LD) disposed therein, but a dummy light blocking layer (LBP_D) formed in the same process as the light blocking layer (LBP) is disposed therein, thereby securing a process margin.

[0086] A dummy area (DUA) can be placed between another non-display area (NDA) and a display area (DA). The dummy area (DUA) can be placed on the periphery of the display area (DA) and can completely surround the display area (DA) (e.g., surround the periphery thereof).

[0087] A polarizing layer (POL) may be disposed on a light control layer (LCL). The polarizing layer (POL) may be disposed on an upper surface of the light control layer (LCL) and may be disposed on side surfaces of the light control layer (LCL).

[0088] The polarizing layer (POL) may include various suitable polarizing materials and polarizing layers. For example, the polarizing layer (POL) may include a phase retarder (e.g., a λ / 4 phase retarder) and a linear polarizing layer on the phase retarder. However, the present disclosure is not limited thereto. By arranging the polarizing layer (POL), the risk of visibility degradation due to external light reflection can be reduced.

[0089] A window layer (WD) may be disposed on a polarizing layer (POL). The window layer (WD) may be disposed on the polarizing layer (POL). The window layer (WD) may protect underlying layers from external impact and provide an input surface and / or a display surface to a user. The window layer (WD) may transmit light. The window layer (WD) may be coupled (e.g., connected or attached) to the polarizing layer (POL) using various suitable methods, such as an adhesive layer.

[0090] The window layer (WD) can be combined (e.g., connected or adhered) with the polarizing layer (POL) and an adhesive layer (ADL). The adhesive layer (ADL) can include various suitable adhesive materials, such as an optically clear adhesive (OCA).

[0091] The window layer (WD) can be aligned on the display panel (DP) using the alignment key layer (ALK). For example, the position of the alignment key layer (ALK) can be recognized and determined using a camera or a sensor, and accordingly, the window layer (WD) can be placed at a desired position (e.g., a preset or predetermined position) based on the position of the alignment key layer (ALK).

[0092] According to an embodiment, the display device (DD) may further include a black matrix layer (BM) disposed under the window layer (WD). The black matrix layer (BM) may be disposed between the window layer (WD) and the polarizing layer (POL).

[0093] In some embodiments, the black matrix layer (BM) may be disposed within a non-display area (NDA) outside a dummy area (DUA) when viewed in a plan view. In some embodiments, the black matrix layer (BM) may overlap with an alignment key layer (ALK) when viewed in a plan view. The black matrix layer (BM) may include a suitable light-blocking material such as carbon black, but the present disclosure is not limited thereto.

[0094] Referring to FIGS. 3 and 4, the display device (DD) may include a display layer (DL), a touch sensor layer (TSP), and a driving circuit (DCP).

[0095] For convenience of illustration, the driving circuit (DCP) is illustrated separately from the display layer (DL) and the touch sensor layer (TSP) in FIGS. 2 and 3, but the present disclosure is not limited thereto. Depending on the embodiment, all or part of the driving circuit (DCP) may be implemented as an integral part with the display layer (DL), etc.

[0096] According to an embodiment, a display device (DD) includes a base layer (BSL) and pixels (PXL) and sensing electrodes (SP) arranged on the base layer (BSL). The display device (DD) includes a driving circuit (DCP). The driving circuit (DCP) may include a display driving unit (DDV) and a touch driving unit (TDV).

[0097] The base layer (BSL) may form a bottom surface of the display device (DD). In some embodiments, the base layer (BSL) may be a lower substrate for arranging layers forming the display device (DD). The base layer (BSL) may be a rigid or flexible substrate or film. For example, the base layer (BSL) may include a glass material. In other examples, the base layer (BSL) may include a silicon material. In other examples, the base layer (BSL) may include polyimide. However, the present disclosure is not limited thereto.

[0098] The plane defined here may be defined based on a plane on which the base layer (BSL) is arranged, as a direction extending in the first direction (DR1) and the second direction (DR2). Depending on the embodiment, the third direction (DR3) may be a thickness direction of the base layer (BSL), and the third direction (DR3) may be a light emission direction of the display device (DD).

[0099] A pixel (PXL) may include a first pixel (PXL1) and a second pixel (PXL2). The first pixel (PXL1) may provide light when the display device (DD) operates in the first mode. The second pixel (PXL2) may provide light when the display device (DD) operates in the second mode.

[0100] A pixel (PXL) may include sub-pixels. For example, a first pixel (PXL1) may include a first-first sub-pixel (SPX1-1), a second-first sub-pixel (SPX2-1), and a third-first sub-pixel (SPX3-1). A second pixel (PXL2) may include a first-second sub-pixel (SPX1-2), a second-second sub-pixel (SPX2-2), and a third-second sub-pixel (SPX3-2).

[0101] The first-first sub-pixel (SPX1-1) and the first-second sub-pixel (SPX1-2) can provide light of a first color (e.g., red). The second-first sub-pixel (SPX2-1) and the second-second sub-pixel (SPX2-2) can provide light of a second color (e.g., green). The third-first sub-pixel (SPX3-1) and the third-second sub-pixel (SPX3-2) can provide light of a third color (e.g., blue).

[0102] The sensing electrodes (SP) may include a first sensing electrode (SP1) extending in a first direction (DR1) and a second sensing electrode (SP2) extending in a second direction (DR2) different from (e.g., intersecting with) the first direction (DR1).

[0103] The driving circuit unit (DCP) can drive the display layer (DL) and the touch sensor layer (TSP). For example, the driving circuit unit (DCP) can output a data signal corresponding to image data to the display layer (DL). The touch driver unit (TDV) can supply a sensing signal to the sensing electrodes (SP) and receive a user input signal that detects a user touch input.

[0104] According to an embodiment, the alignment key layer (ALK) may be positioned within the non-display area (NDA) (or within the non-sensing area (NSA)). The alignment key layer (ALK) may be positioned at an edge of the display device (DD). For example, the alignment key layer (ALK) may be positioned adjacent to an edge of the display area (DA).

[0105] Referring to FIGS. 5 to 9, the operating modes of the display device (DD) according to the embodiment will be described in more detail. For convenience, components and configurations that are identical or substantially identical to those described above may be briefly described below, and any redundant description thereof may not be repeated.

[0106] Fig. 5 is a block diagram illustrating an operation mode of a display device according to an embodiment. Fig. 6 schematically illustrates an example in which a display device according to an embodiment is applied to a vehicle electronic device. Fig. 7 is a diagram schematically illustrating a display device according to an embodiment operating in a first mode. Fig. 8 is a diagram schematically illustrating a display device according to an embodiment operating in a second mode. Fig. 9 is a schematic diagram illustrating a path of an image provided when a display device according to an embodiment is applied to a vehicle electronic device.

[0107] Referring to FIGS. 5 to 9, a display device (DD) (e.g., a pixel (PXL)) according to an embodiment can operate in a first mode or a second mode. FIGS. 6 to 9 illustrate an X-direction (X), a Y-direction (Y), and a Z-direction (Z), respectively. The axial directions illustrated in FIGS. 6 to 9 will be summarized to explain in more detail the positional relationship between a driver, a passenger, and a vehicle display device.

[0108] The first mode may be an operating mode in which the first pixel (PXL1) provides light. The second mode may be an operating mode in which the second pixel (PXL2) provides light.

[0109] Regarding the first mode and the second mode, an example in which the display device (DD) is applied to a vehicle electronic device is explained.

[0110] A display device (DD) according to an embodiment may be applied to a vehicle electronic device. The display device (DD) may be applied to a vehicle entertainment system. The display device (DD) may be applied to a co-driver display (AD). The co-driver display (AD) may include a first co-driver display (AD1) formed in the central portion of the front panel of the vehicle and outputting various desired information, and a second co-driver display (AD2) positioned in front of a passenger.

[0111] In some embodiments, the vehicle electronics may appropriately control the user-visible range depending on whether the vehicle is in operation.

[0112] For example, as a vehicle user, the driver and passenger may view images in front of the cluster (CLS) and co-driver display (AD). In some embodiments, the driver may not view the co-driver display (AD) while the vehicle is in motion. Conversely, in some embodiments, the driver may view the co-driver display (AD) while the vehicle is stationary. Furthermore, the cluster (CLS) may allow the driver to view it regardless of whether the vehicle is in motion.

[0113] In some embodiments, the first mode may be an operating mode of the display device (DD) in which the driver cannot view image information (IMA) output by the co-driver display (AD) while the vehicle is in motion. For example, in the first mode, the co-driver display (AD) may output the image information (IMA) generally toward the front, but not toward the side (e.g., toward the driver). Accordingly, in the first mode, it may be more difficult for the driver to view the co-driver display (AD) while the vehicle is in motion.

[0114] In some embodiments, the second mode may be an operating mode of the display device (DD) that allows the driver to view image information (IMA) output by the co-driver display (AD) while the vehicle is in motion. For example, in the second mode, the co-driver display (AD) may output the image information (IMA) generally toward the front, but may additionally output the image information toward the side. Accordingly, the driver can appropriately view the co-driver display (AD) while driving the vehicle in the second mode.

[0115] Accordingly, the display device (DD) can be suitably applied to a vehicle infotainment system to improve user stability.

[0116] Referring to Fig. 9, the co-driver display (AD) can output image information (IMA) to the front. Since a vehicle window (WD_A) can be formed at the front of the vehicle, when a part of the image information (IMA) is applied to the vehicle window (WD_A) (for example, when applied), the reflected image information (IMA_R) reflected by the vehicle window (WD_A) may be visible to the passenger (or driver, etc.). In this case, it may be difficult for the display device (DD) to properly transmit image information of a desired quality to the passenger and driver.

[0117] According to an embodiment, a structure capable of preventing or reducing the risk of such reflected image information (IMA_R) occurring in the periphery of a pixel (PXL) can be formed. Accordingly, the risk of the display quality of a co-driver display (AD) being degraded by the reflected image information (IMA_R) can be reduced.

[0118] The structure of the display device (DD) for preventing or reducing the formation of the first mode, the second mode, and the reflected image information (IMA_R) described above is described in more detail below.

[0119] Referring to FIGS. 10 to 16, a display device (DD) according to one embodiment will be described in more detail.

[0120] Fig. 10 is a schematic plan view showing a pixel according to an embodiment. Fig. 10 schematically illustrates some of the sub-pixels within the display area (DA).

[0121] Figures 11 to 14 are schematic cross-sectional views illustrating display devices according to some embodiments. Figure 11 is a schematic cross-sectional view taken along lines A to A' of Figure 10. Figures 12 to 14 are schematic cross-sectional views taken along lines B to B' of Figures 3 and 4.

[0122] Fig. 15 is a schematic plan view showing backplane wiring and alignment keys according to an embodiment. Fig. 15 also shows a schematic plan view of a display device (DD) and a schematic enlarged view of a detection area (SA) and a non-detection area (NSA).

[0123] Fig. 16 is a schematic plan view showing sensing wiring and alignment keys according to an embodiment. Fig. 16 is a plan view schematically showing a display device (DD) and schematic enlarged views of a display area (DA) and a non-display area (NDA).

[0124] Referring to FIGS. 10 to 16, a pixel (PXL) within a display area (DA) may include a first pixel (PXL1) and a second pixel (PXL2) spaced apart in one direction.

[0125] According to an embodiment, the first-first sub-pixel (SPX1-1), the second-first sub-pixel (SPX2-1), and the third-first sub-pixel (SPX3-1) each form a sub-pixel area and can provide light of one color. The first-second sub-pixel (SPX1-2), the second-second sub-pixel (SPX2-2), and the third-second sub-pixel (SPX3-2) each form a sub-pixel area and can provide light of one color.

[0126] According to an embodiment, the light blocking layer (LBP) may include a first light blocking portion (LBP_F) and a second light blocking portion (LBP_S).

[0127] The first light blocking unit (LBP_F) may be arranged around the sub-pixels (SPX1-1, SPX2-1, SPX3-1) of the first pixel (PXL1). For example, the first light blocking unit (LBP_F) may entirely surround each of the sub-pixels (SPX1-1, SPX2-1, SPX3-1) when viewed in a plane. The first light blocking unit (LBP_F) may have a closed-loop structure.

[0128] According to an embodiment, a first portion of the first light blocking portion (LBP_F) may extend in a first direction (DR1), and a second portion of the first light blocking portion (LBP_F) may extend in a second direction (DR2) that is different from (e.g., intersects) the first direction (DR1). Accordingly, the first portion of the first light blocking portion (LBP_F) extending in the first direction (DR1) may limit an optical path in which light flows upward or downward when the first pixel (PXL1) provides light. The second portion of the first light blocking portion (LBP_F) extending in the second direction (DR2) may limit an optical path in which light flows leftward or rightward when the first pixel (PXL1) provides light.

[0129] Accordingly, when the display device (DD) operates in the first mode and thus the first pixel (PXL1) provides light, the provided light may have a limited viewing angle in the lateral direction and may output or substantially output light in the front direction. While the first pixel (PXL1) provides light, the first light blocking portion (LBP_F) may limit the viewing angle of the light, making it difficult for the driver to visually perceive the light. In addition, when the display device (DD) operates in the first mode and thus the first pixel (PXL1) provides light, the provided light may have a limited viewing angle in the upward direction, thereby reducing the risk of generating reflected image information (IMA_R).

[0130] The second light blocking portion (LBP_S) may be arranged around the sub-pixels (SPX1-2, SPX2-2, SPX3-2) of the second pixel (PXL2). For example, the second light blocking portion (LBP_S) may be opened to one side of the sub-pixels (SPX1-2, SPX2-2, SPX3-2) when viewed in a plane.

[0131] According to an embodiment, the second light blocking portion (LBP_S) may extend in the first direction (DR1). The second light blocking portion (LBP_S) may not extend in the second direction (DR2). As the second light blocking portion (LBP_S) extends in the first direction (DR1), it may cover the upper sides of the sub-pixels (SPX1-2, SPX2-2, SPX3-2) and may be open to the left and right sides (OS) of the sub-pixels (SPX1-2, SPX2-2, SPX3-2). For example, the second pixel (PXL2) may include a first side (S1) along the first direction (DR1) and a second side (S2) along the second direction (DR2). The second light blocking portion (LBS_S) may open the first side (S1) of the first pixel (PXL1) and surround the second side (S2). Accordingly, the second light blocking portion (LBP_S) extending in the first direction (DR1) can limit the light path in which light is directed upward or downward when the second pixel (PXL2) provides light.

[0132] Accordingly, when the display device (DD) operates in the second mode and the second pixel (PXL2) provides light, the provided light may have a limited viewing angle in the upper direction, and thus the risk of reflection image information (IMA_R) being generated may be reduced.

[0133] Referring to FIG. 11, the display layer (DL) may include a display layer (DL) including light-emitting elements (LD) arranged on a base layer (BSL). According to an embodiment, the light-emitting elements (LD) may be arranged in sub-pixels (SPX1-1, SPX2-1, SPX3-1).

[0134] A touch sensor layer (TSP) may be disposed on a display layer (DL). The touch sensor layer (TSP) may include a first interlayer insulating layer (ILD1), a first conductive pattern layer (CP1), a second interlayer insulating layer (ILD2), a second conductive pattern layer (CP2), and a third interlayer insulating layer (ILD3).

[0135] The first interlayer insulating layer (ILD1) can form a base on which the conductive pattern layers (CP1, CP2) are arranged. The second interlayer insulating layer (ILD2) can be arranged between the first conductive pattern layer (CP1) and the second conductive pattern layer (CP2). The third interlayer insulating layer (ILD3) can cover the second conductive pattern layer (CP2).

[0136] According to an embodiment, the first conductive pattern layer (CP1) and the second conductive pattern layer (CP2) can be patterned according to a desired structure (e.g., a specific or predetermined structure) and can form sensing electrodes (SP). For example, the second conductive pattern layer (CP2) can be patterned in a mesh structure to form cells of the first and second sensing electrodes (SP1, SP2), and a portion of the second conductive pattern layer (CP2) can be cut to separate the first and second sensing electrodes (SP1, SP2). In addition, a portion of at least one of the first conductive pattern layer (CP1) and the second conductive pattern layer (CP2) can form a bridge for the first and second sensing electrodes (SP1, SP2).

[0137] Depending on the embodiment, the first conductive pattern layer (CP1) and the second conductive pattern layer (CP2) may include various suitable conductive materials, and the first to third interlayer insulating layers (ILD1 to ILD3) may include organic or inorganic materials.

[0138] According to an embodiment, the first conductive pattern layer (CP1) and the second conductive pattern layer (CP2) may be arranged within a non-sub pixel area (NSPA) when viewed from a planar view. The non-sub pixel area (NSPA) may be an area between sub pixels (SPX) and may be an area where light of a single color is not recognized.

[0139] The light control layer (LCL) may include light blocking layers (LBP), passivation layers (PAS), protective layers (PVX), insulating layers (INS), and a cover layer (CVL) each disposed in different layers.

[0140] According to an embodiment, as previously discussed, the light blocking layers (LBP) may be arranged in a plurality of layers, each of which is a structure for controlling the light emission path provided by the display layer (DL). According to an embodiment, the number of layers in which the light blocking layers (LBP) are arranged is not particularly limited. Hereinafter, for the convenience of explanation, the light blocking layers (LBP) may be explained in more detail as being arranged in four layers, as a representative example.

[0141] According to an embodiment, light blocking layers (LBP) may be disposed in a non-sub pixel area (NSPA). A passivation layer (PAS) may form a base on which the light blocking layer (LBP) is disposed. A protective layer (PVX) may cover the light blocking layer (LBP). An insulating layer (INS) may be disposed on the protective layer (PVX) and may generally have a large thickness.

[0142] The passivation layer (PAS) may include a first passivation layer (PAS1), a second passivation layer (PAS2), a third passivation layer (PAS3), and a fourth passivation layer (PAS4). The protection layer (PVX) may include a first protection layer (PVX1), a second protection layer (PVX2), and a third protection layer (PVX3). The insulation layer (INS) may include a first insulation layer (INS1), a second insulation layer (INS2), and a third insulation layer (INS3).

[0143] According to an embodiment, a first passivation layer (PAS1), a first light blocking layer (LBP1), a first protective layer (PVX1), and a first insulating layer (INS1) may be disposed on a touch sensor layer (TSP). A second passivation layer (PAS2), a second light blocking layer (LBP2), a second protective layer (PVX2), and a second insulating layer (INS2) may be disposed on the first insulating layer (INS1). A third passivation layer (PAS3), a third light blocking layer (LBP3), a third protective layer (PVX3), and a third insulating layer (INS3) may be disposed on the second insulating layer (INS2). A fourth passivation layer (PAS4), a fourth light blocking layer (LBP4), and a cover layer (CVL) may be disposed on the third insulating layer (INS3).

[0144] In some embodiments, among the light blocking layers (LBP), the light blocking layer (LBP) disposed closest to the display panel (DP) may be referred to as a lower light blocking layer (LBP_B). For example, in the present embodiment, the first light blocking layer (LBP1) may be the lower light blocking layer (LBP_B).

[0145] In some embodiments, among the light blocking layers (LBP), the light blocking layer (LBP) disposed closest to the window layer (WD) may be referred to as the upper light blocking layer (LBP_U). For example, in the present embodiment, the fourth light blocking layer (LBP4) may be the upper light blocking layer (LBP_U).

[0146] According to an embodiment, the passivation layer (PAS), the protective layer (PVX), the insulating layer (INS), and the cover layer (CVL) may each include an organic material or an inorganic material. According to an embodiment, the passivation layer (PAS), the protective layer (PVX), and the cover layer (CVL) may include an inorganic material, and the insulating layer (INS) may include an organic material. However, the present disclosure is not limited thereto.

[0147] According to an embodiment, a polarizing layer (POL) and a window layer (WD) may be disposed on the cover layer (CVL).

[0148] Referring to FIGS. 12 to 16, a cross-sectional structure of a display device (DD) spanning a display area (DA) and a non-display area (NDA) is disclosed.

[0149] In some embodiments, the alignment key layer (ALK) may not overlap with a conductive structure having a floating state when viewed in a planar manner.

[0150] In some embodiments, the display layer (DL) may include a backplane wiring (WIR_B) disposed within a non-display area (NDA). The backplane wiring (WIR_B) may electrically connect a conductive structure (e.g., a pixel circuit) within the display area (DA) and a driving circuit (DCP).

[0151] The backplane wiring (WIR_B) may be a component for electrically connecting the conductive components. The backplane wiring (WIR_B) may not be floating and may be electrically connected to wiring such as a pixel circuit (PXC) within the display area (DA).

[0152] The backplane wiring (WIR_B) may have a linear structure. For example, the backplane wiring (WIR_B) may not have an island shape. The backplane wiring (WIR_B) may not have an isolated shape.

[0153] In some embodiments, the touch sensor layer (TSP) may include sensing wires (WIR_S) positioned within a non-sensing area (NSA). The sensing wires (WIR_S) may electrically connect a conductive structure (e.g., a sensing electrode (SP)) within the sensing area (SA) and a driving circuit (DCP).

[0154] The sensing wire (WIR_S) may be a component for electrically connecting the challenge components. The sensing wire (WIR_S) may not be in a floating state and may be electrically connected to a sensing electrode (SP) within the sensing area (SA).

[0155] According to an embodiment, the sensing wiring (WIR_S) may be formed by a first conductive pattern layer (CP1) and / or a second conductive pattern layer (CP2).

[0156] The sensing wire (WIR_S) may have a linear structure. For example, the sensing wire (WIR_S) may not have an island shape. The sensing wire (WIR_S) may not have an isolated shape.

[0157] According to an embodiment, the display device (DD) may include dams (DAM) arranged within a non-display area (NDA) on a touch sensor layer (TSP). The dams (DAM) may include structures formed within the same process as at least some of the protective layers (PVX) and the passivation layers (PAS).

[0158] The dams (DAM) may include a first dam (DAM1), a second dam (DAM2), a third dam (DAM3), and a fourth dam (DAM4) sequentially arranged in a direction from the display area (DA) toward the non-display area (NDA). The dams (DAM) may prevent or substantially prevent materials from flowing outward when protective layers (PVX), insulating layers (INS), etc., are arranged within the display area (DA).

[0159] According to an embodiment, a dummy light-blocking layer (LBP_D) may be disposed within the dummy area (DUA). According to an embodiment, the dummy light-blocking layer (LBP_D) may be patterned within the same process as the light-blocking layers (LBP) formed within the display area (DA). For example, the dummy light-blocking layer (LBP_D) may include first to fourth dummy light-blocking layers formed within the same process as each of the first to fourth light-blocking layers (LBP1 to LBP4).

[0160] According to an embodiment, the alignment key layer (ALK) may be disposed on the same layer as at least some of the light blocking layers (LBP). The alignment key layer (ALK) may be patterned in the same process as at least some of the light blocking layers (LBP) and may include the same material. That is, the alignment keys (ALK) for aligning layers formed after the light control layer (LCL) is manufactured may be formed when the light control layer (LCL) is manufactured.

[0161] In this case, alignment keys for aligning each layer formed after the light control layer (LCL) is manufactured can be formed without requiring a separate process. In other words, processes can be simplified, thereby reducing process costs.

[0162] According to an embodiment, the light blocking layers (LBP), the alignment key layer (ALK), and the dummy light blocking layers (LBP_D) may include a light blocking material (e.g., a material that blocks visible light). For example, the light blocking layers (LBP), the alignment key layer (ALK), and the dummy light blocking layers (LBP_D) may include a black matrix material such as carbon black. According to an embodiment, the light blocking layers (LBP), the alignment key layer (ALK), and the dummy light blocking layers (LBP_D) may include an organic black material (e.g., a lactam-based material).

[0163] Meanwhile, in another embodiment, the alignment key layer (ALK) and some of the light blocking layers (LBP) patterned in the same process may include an organic black material (e.g., a lactam-based material), while other parts of the light blocking layers (LBP) patterned in a different process from the alignment key layer (ALK) may include a black matrix material such as carbon black.

[0164] In some embodiments (e.g., see FIGS. 12 and 13), the alignment key layer (ALK) may be patterned in the same process as the lower light-blocking layer (LBP_B) in the same layer and may include the same material as the lower light-blocking layer (LBP_B).

[0165] In some embodiments, the alignment key layer (ALK) may be disposed on the first passivation layer (PAS1) within the non-display area (NDA) outside the dummy area (DUA). In some embodiments, a patterned structure may not be formed on the alignment key layer (ALK) in the same process as the second to fourth light-blocking layers (LBP2 to LBP4).

[0166] In some embodiments, since the alignment key layer (ALK) is patterned in the same process as the lower light-blocking layer (LBP_B), the alignment key layer (ALK) may be disposed on a more stable substrate. For example, since the alignment key layer (ALK) is disposed directly on top of the touch sensor layer (TSP), the substrate on which the alignment key layer (ALK) is disposed may be flat or substantially flat.

[0167] Referring to FIG. 13, as the non-display area (NDA) shrinks (e.g., as the dead space decreases), at least some of the passivation layers (PAS), the insulating layers (INS), and the protective layers (PVX) disposed on the alignment key layer (ALK) may be bent. The passivation layers (PAS), the insulating layers (INS), and the protective layers (PVX) may include bent portions in areas overlapping the alignment key layer (ALK) when viewed in a plan view. For example, in the non-display area (NDA), the alignment key layer (ALK) may overlap with bent portions of each of the passivation layers (PAS), the insulating layers (INS), and the protective layers (PVX) when viewed in a plan view. The alignment key layer (ALK) may not be formed on a curved base, but may be disposed on a flat or substantially flat first passivation layer (PAS1), so that the structural stability of the alignment key layer (ALK) can be secured, and the window layer (WD) can be suitably aligned. In addition, in this case, the non-display area (NDA) can be reduced, and the display device (DD) can have a large-area expanded display area (DA).

[0168] In an embodiment (e.g., see FIG. 14), the alignment key layer (ALK) may be patterned in the same process as the upper light-blocking layer (LBP_U) in the same layer and may include the same material as the upper light-blocking layer (LBP_U).

[0169] In some embodiments, the alignment key layer (ALK) may be disposed on the fourth passivation layer (PAS4) within the non-display area (NDA) outside the dummy area (DUA). In some embodiments, a patterned structure may not be formed in the same process as the first to third light-blocking layers (LBP1 to LBP3) under the alignment key layer (ALK).

[0170] In an embodiment, since the alignment key layer (ALK) is patterned in the same process as the upper light blocking layer (LBP_U), when light is applied to identify the window layer (WD), light loss can be prevented or substantially prevented, and the alignment key layer (ALK) can be identified with higher reliability to align the window layer (WD).

[0171] In some embodiments, the alignment key layer (ALK) may have an identifiable shape, such as a pattern or mark formed at a suitable location (e.g., a predetermined location). For example, the alignment key layer (ALK) may have various suitable polygonal shapes. However, the present disclosure is not limited thereto.

[0172] According to an embodiment (e.g., see FIG. 15), the alignment key layer (ALK) may not overlap with a conductive structure having an isolated shape (e.g., an island shape) within the display layer (DL) when viewed in a plan view. According to an embodiment, the alignment key layer (ALK) may or may not overlap with a backplane wiring (WIR_B) having a linear structure when viewed in a plan view. In this case, since a structure that may be confused with the alignment key layer (ALK) is not placed within the non-display area (NDA), the alignment reliability of configurations formed after the alignment key layer (ALK) is formed can be improved.

[0173] According to an embodiment (e.g., see FIG. 16), the alignment key layer (ALK) may not overlap with a conductive structure having an isolated shape (e.g., an island shape) within the touch sensor layer (TSP) when viewed in a plan view. According to an embodiment, the alignment key layer (ALK) may or may not overlap with sensing wires (WIR_S) having a linear structure when viewed in a plan view. In this case, since a structure that may be confused with the alignment key layer (ALK) is not placed within the non-sensing area (NSA), the alignment reliability of configurations formed after the alignment key layer (ALK) is formed can be improved.

[0174] Referring to FIGS. 17 to 19, a display device (DD) according to some embodiments will be described in more detail. For convenience, components and configurations that are identical or substantially identical to those described above may be briefly described below, and any redundant description thereof may not be repeated.

[0175] Fig. 17 is a schematic plan view illustrating a display device according to an embodiment. Fig. 17 illustrates a light blocking layer (LBP) within a display area (DA) and a non-display area (NDA) according to an embodiment and layers patterned in the same process. Figs. 18 and 19 are schematic cross-sectional views taken along lines C to C' of Fig. 17.

[0176] The display device (DD) illustrated in FIGS. 17 to 19 may differ from the aforementioned display device (DD) in that the alignment key layer (ALK) having a relief pattern is arranged within the dummy area (DUA).

[0177] According to the present embodiment, the alignment key layer (ALK) can be arranged within the dummy area (DUA) and can form an identifiable structure (e.g., a specific or predetermined identifiable structure) with a relief pattern.

[0178] For example, the alignment key layer (ALK) may be adjacent to the dummy light-blocking layer (LBP_D) within the dummy area (DUA). For example, the dummy light-blocking layer (LBP_D) is patterned to extend generally in one direction, and may not be disposed in some areas (e.g., specific or predetermined areas) within the dummy area (DUA). Accordingly, the alignment key layer (ALK) may be patterned within an area within the dummy area (DUA) where the dummy light-blocking layer (LBP_D) is not disposed.

[0179] According to an embodiment (e.g., see FIG. 18), the alignment key layer (ALK) may be patterned within the same process as the upper light-blocking layer (LBP_U) within the dummy area (DUA) and may be disposed on the same layer as the upper light-blocking layer (LBP_U).

[0180] In some embodiments (e.g., see FIG. 19), the alignment key layer (ALK) may be patterned within the same process as the lower light-blocking layer (LBP_B) within the dummy area (DUA) and may be disposed on the same layer as the lower light-blocking layer (LBP_B).

[0181] In some embodiments, the alignment key layer (ALK) may be patterned within the same process as the light blocking layer (LBP), thereby simplifying the process, while the alignment key layer (ALK) may be patterned within the dummy area (DUA), thereby further reducing the non-display area (NDA). Accordingly, the dead space may be further reduced.

[0182] Hereinafter, a display device (DD) according to some embodiments will be described in more detail with reference to FIGS. 20 and 22. For convenience, components and configurations that are identical or substantially identical to those described above may be briefly described below, and any redundant description thereof may not be repeated.

[0183] Fig. 20 is a schematic plan view showing a display device according to an embodiment. Fig. 20 illustrates a light blocking layer (LBP) within a display area (DA) and a non-display area (NDA) according to an embodiment and layers patterned in the same process. Figs. 21 and 22 are schematic cross-sectional views taken along lines D to D' of Fig. 20.

[0184] The display device (DD) illustrated in FIGS. 20 to 22 may differ from the aforementioned display device (DD) in that the alignment key layer (ALK) having an engraved pattern is arranged within the dummy area (DUA).

[0185] According to the present embodiment, the alignment key layer (ALK) can be arranged within the dummy area (DUA) and can form an identifiable structure (e.g., a specific or predetermined identifiable structure) having an engraved pattern.

[0186] For example, the alignment key layer (ALK) may be adjacent to the dummy light-blocking layer (LBP_D) within the dummy area (DUA). For example, the dummy light-blocking layer (LBP_D) is patterned to extend generally in one direction and may not be disposed in some areas (e.g., specific or predetermined areas) within the dummy area (DUA). Accordingly, the alignment key layer (ALK) may be formed by a patterned alignment key forming portion (KFP) within an area within the dummy area (DUA) where the dummy light-blocking layer (LBP_D) is not disposed. For example, the alignment key forming portion (KFP) may be disposed to surround an identification pattern (e.g., a specific or predetermined identification pattern) to define the alignment key layer (ALK).

[0187] According to an embodiment (e.g., see FIG. 21), an alignment key forming portion (KFP) for forming an alignment key layer (ALK) may be patterned within the dummy area (DUA) in the same process as the upper light-blocking layer (LBP_U) and may be disposed on the same layer as the upper light-blocking layer (LBP_U).

[0188] According to an embodiment (e.g., see FIG. 22), an alignment key forming portion (KFP) for forming an alignment key layer (ALK) may be patterned within the dummy area (DUA) in the same process as the lower light-blocking layer (LBP_B) and may be disposed on the same layer as the lower light-blocking layer (LBP_B).

[0189] According to an embodiment, the alignment key forming portion (KFP) for forming the alignment key layer (ALK) can be patterned in the same process as the light blocking layer (LBP), thereby simplifying the process, and since the alignment key forming portion (KFP) for forming the alignment key layer (ALK) can be patterned in a dummy area (DUA), the non-display area (NDA) can be further reduced. Accordingly, the dead space can be further reduced.

[0190] Hereinafter, with reference to FIG. 23, a display device (DD) according to an embodiment will be described in more detail. For convenience, components and configurations identical or substantially identical to those described above may be briefly described below, and redundant descriptions thereof may not be repeated.

[0191] Fig. 23 is a schematic plan view showing a sensor and a cross-sectional structure adjacent thereto according to an embodiment. Fig. 23 is a plan view schematically showing a display device (DD) and a schematic cross-sectional view cut along lines E to E'.

[0192] According to an embodiment, the display device (DD) may include a sensor (SEN) that obtains sensing information based on various optical information. For example, the sensor (SEN) may be positioned at the bottom of the display panel (DP) within some areas of the display area (DA) (e.g., within specific or predetermined areas).

[0193] The sensor (SEN) may be any one of various suitable sensors that obtain sensing information based on applied light. For example, the sensor (SEN) may include at least one of an optical fingerprint sensor, an ambient light sensor, a proximity sensor, a camera module (e.g., an image sensor or a camera), or a light sensor.

[0194] According to an embodiment, the sensor (SEN) outputs sensing information based on light applied from the outside, so the intensity of the applied light may not be reduced by a light blocking layer (LBP) or the like.

[0195] In some embodiments, a portion of the sensor (SEN) may not overlap with the light blocking layer (LBP) when viewed in a plan view. Accordingly, the sensing sensitivity of the sensor (SEN) may be improved.

[0196] According to an embodiment, the light blocking layer (LBP) may include carbon black or the like, and according to an embodiment, the light blocking layer (LBP) may include an organic black material (e.g., a lactam-based material) so as to improve the sensing sensitivity of the sensor (SEN). In this case, since the organic black material (e.g., a lactam-based material) can transmit light in the infrared wavelength band, the light blocking layer (LBP) can suitably perform a viewing angle control function for visible light, while the sensing sensitivity of the sensor (SEN) can be provided with excellent performance.

[0197] In this case, since the alignment key layer (ALK) according to the embodiment can be formed in the same process as the light blocking layer (LBP), the alignment key layer (ALK) can also include an organic black material (e.g., a lactam-based material).

[0198] Referring to FIGS. 24 to 27, a method for manufacturing a display device (DD) according to an embodiment will be described in more detail. For convenience, components and configurations identical or substantially identical to those described above may be briefly described below, and any redundant description thereof may not be repeated.

[0199] Fig. 24 is a flowchart showing a method for manufacturing a display device according to an embodiment.

[0200] FIGS. 25 to 27 are schematic cross-sectional views illustrating some processes of a method for manufacturing a display device according to an embodiment. For convenience of explanation, FIGS. 25 to 27 are illustrated based on the cross-sectional structure described above with reference to FIG. 2.

[0201] Referring to FIG. 24, a method for manufacturing a display device (DD) according to an embodiment may begin, a display panel including a display layer and a touch sensor layer may be provided (S200), a light control layer including an alignment key layer and a light blocking layer may be provided (S400), a window layer may be provided using the alignment key layer (S600), and the method may end.

[0202] Referring to FIGS. 24 and 25, in the step (S200) of providing a display panel including a display layer and a touch sensor layer, a display layer (DL) and a touch sensor layer (TSP) on the display layer (DL) may be provided.

[0203] In this step (S200), a light emitting element (LD) may be placed on a base layer (BSL) to form a display layer (DL). Sensing electrodes (SP) may be placed on the display layer (DL) to form a touch sensor layer (TSP).

[0204] According to an embodiment, the conductive layer or insulating layer on the base layer (BSL) may be formed based on an appropriate process for manufacturing a semiconductor device that can be understood by those skilled in the art. For example, the conductive layer or insulating layer on the base layer (BSL) may be formed by a photolithography process, etched by various appropriate methods (e.g., wet etching, dry etching), or deposited by various appropriate methods (e.g., sputtering, chemical vapor deposition). The present disclosure is not limited thereto.

[0205] Referring to FIGS. 24 and 26, in the step (S400) of providing a light control layer including an alignment key layer and a light blocking layer, a light blocking layer (LBP) may be formed in a display area (DA), a dummy light blocking layer (LBP_D) may be formed in a dummy area (DUA), and an alignment key layer (ALK) may be formed in a non-display area (NDA).

[0206] In this step (S400), the light blocking layer (LBP), the dummy light blocking layer (LBP_D), and the alignment key layer (ALK) may be formed simultaneously or substantially simultaneously within the same process. In some embodiments, the alignment key layer (ALK) may be formed within the dummy area (DUA), and may be formed relatively above or relatively below.

[0207] Referring to FIG. 24 and FIG. 27, in the step (S600) of providing a window layer using an alignment key layer, a polarizing layer (POL) may be placed on a light control layer (LCL), and the window layer (WD) may be aligned using the alignment key layer (ALK).

[0208] In this step (S600), the alignment position of the window layer (WD) can be determined by the alignment key layer (ALK) formed on the light control layer (LCL). According to an embodiment, since the polarization layer (POL) can be disposed on the light control layer (LCL), the position of the alignment key layer (ALK) can be identified using light that the polarization layer (POL) can transmit, and thus, the window layer (WD) can be aligned on the display panel (DP) and the light control layer (LCL). For example, light having a wavelength of 700 nm to 900 nm can be used to identify the position of the alignment key layer (ALK). For example, the light for identifying the position of the alignment key layer (ALK) can have a wavelength of 750 nm or 850 nm.

[0209] In this step (S600), a black matrix layer (BM) and an adhesive layer (ADL) may be interposed between the window layer (WD) and the light control layer (LCL), and the window layer (WD) may be suitably aligned to form an outer member of the display device (DD).

[0210] As previously discussed, an alignment key layer (ALK) for layers provided after the light control layer (LCL) such as the window layer (WD) is manufactured can be embedded in the light control layer (LCL), thereby improving process convenience.

[0211] The display device according to the embodiment is applicable to an electronic device. In the embodiment, the electronic device (10) may include the display device (DD) described above and may further include another module or device having additional functions in addition to the display device (DD).

[0212] Fig. 28 is a block diagram of an electronic device according to an embodiment. Referring to Fig. 28, the electronic device (10) may include a display module (11), a processor (12), a memory (13), and a power module (14).

[0213] The processor (12) may include at least one of a central processing unit (CPU), an application processor (AP), a graphics processing unit (GPU), a communication processor (CP), an image signal processor (ISP), and a controller.

[0214] The memory (13) can store data and / or information used to operate the processor (12) or the display module (11). When the processor (12) executes an application stored in the memory (13), an image data signal and / or an input control signal can be transmitted to the display module (11). The display module (11) can process the provided signal and output image information on a display screen.

[0215] The power module (14) may include a power supply module, such as a power adapter or a battery device, and a power conversion module. The power conversion module converts the power supplied by the power supply module and generates power to operate the electronic device (10).

[0216] At least one of the above-described components of the electronic device (10) may be included in the display device (DD) according to the above-described embodiment. Furthermore, in terms of functionality, some of the individual modules included in one module may be included in the display device (DD), while others may be provided separately from the display device (DD). For example, the display module (11) may be included in the display device (DD), while the processor (12), the memory (13), and the power module (14) may not be included in the display device (DD), but instead may be provided separately in the electronic device (10).

[0217] The foregoing is illustrative of some embodiments of the present disclosure and should not be construed as limiting. While some embodiments have been described, those skilled in the art will readily appreciate that various modifications may be made to the embodiments without departing from the spirit and scope of the present disclosure. It will be appreciated that the description of features or aspects within each embodiment should generally be considered applicable to other similar features or aspects of other embodiments, unless otherwise stated. Accordingly, as will be apparent to those skilled in the art, features, characteristics, and / or elements described in connection with a particular embodiment may be used alone or in combination with features, characteristics, and / or elements described in connection with other embodiments, unless otherwise specifically indicated. Therefore, the foregoing description has described various exemplary embodiments and should not be construed as limited to the specific embodiments disclosed herein, and various modifications to the disclosed embodiments and other exemplary embodiments are intended to be included within the spirit and scope of the present disclosure as defined by the appended claims and their equivalents.

Claims

1. As a display device, A display panel including a first pixel and a second pixel spaced apart from the first pixel; A light control layer including light blocking layers and an alignment key layer, which are disposed on the display panel and include a first light blocking portion and a second light blocking portion; and A window layer disposed on the above light control layer; The above first light blocking portion, when viewed on a plane, entirely surrounds the first pixel, The second light blocking portion is opened on the first side of the second pixel along the first direction and surrounds the second side of the first pixel along a second direction different from the first direction, The display device is configured to operate in a first mode in which the first pixel is configured to provide light or in a second mode in which the second pixel is configured to provide light, The alignment key layer is arranged in the same layer as at least one of the light blocking layers. Display device.

2. In paragraph 1, The above window layer is configured to be aligned using the alignment key layer. Display device.

3. In paragraph 1, The above light blocking layers include a lower light blocking layer adjacent to the display panel and an upper light blocking layer adjacent to the window layer. Display device.

4. In paragraph 3, The above alignment key layer is arranged on the same layer as the lower light blocking layer. Display device.

5. In paragraph 4, On the upper part of the alignment key layer, no structure is placed on the same layer as the light blocking layers. Display device.

6. In paragraph 4, Further comprising an insulating layer disposed on the alignment key layer; The insulating layer includes a curved portion in an area overlapping the alignment key layer when viewed on a plane. Display device.

7. In paragraph 3, The above alignment key layer is arranged on the same layer as the upper light blocking layer. Display device.

8. In paragraph 1, A passivation layer as a base on which the above light blocking layers are arranged; a protective layer covering the above light blocking layers; and Further comprising an insulating layer disposed on the protective layer; The above light blocking layers comprise four different layers, Display device.

9. In paragraph 1, including a display area and a non-display area surrounding the display area; The above alignment key layer does not overlap with the floating challenge structure when viewed on a plane. Display device.

10. In paragraph 1, including a display area and a non-display area surrounding the display area; The above display panel includes a backplane wiring arranged within the non-display area, and the backplane wiring has a linear structure, The above alignment key layer does not overlap with the challenge structure having an island shape when viewed on a plane. Display device.

11. In paragraph 1, A detection area and a non-detection area surrounding the detection area; The display panel includes a display layer and a touch sensor layer disposed on the display layer, and the touch sensor layer includes a sensing electrode. The touch sensor layer is disposed within the non-sensing area and includes a sensing wire electrically connected to the sensing electrode, and the sensing wire has a linear structure. The above alignment key layer does not overlap with the challenge structure having an island shape when viewed on a plane. Display device.

12. In paragraph 1, including a display area and a non-display area surrounding the display area; The non-display area includes a dummy area arranged around the display area; A dummy light blocking layer is disposed in the same layer as at least one of the light blocking layers within the dummy region, The above alignment key layer is arranged within the above dummy area, Display device.

13. In paragraph 12, The above alignment key layer has a raised pattern or an engraved pattern, Display device.

14. In paragraph 1, The above light blocking layers include at least one of a black matrix material or an organic black material. Display device.

15. In paragraph 14, At least one of the alignment key layer and the light blocking layers disposed in the same layer as the alignment key layer includes the black matrix material, and some of the other light blocking layers disposed in a different layer from the alignment key layer include the organic black material. Display device.

16. In paragraph 1, a polarizing layer disposed between the light control layer and the window layer; and Further comprising a black matrix layer disposed below the above window layer; The above black matrix layer and the alignment key layer overlap each other when viewed on a plane. Display device.

17. In paragraph 1, The above display panel includes a base layer, The display device further includes a sensor disposed below the base layer within the display area; Display device.

18. In paragraph 14, The above light-blocking layer comprises a lactam material, Display device.

19. In paragraph 1, The above first optical blocking unit has a closed loop shape, The above second light blocking portion has a formation extending in one direction, Display device.

20. A processor configured to transmit an input control signal; A display device configured to output image information; and A power module configured to supply power to the display device; The above display device, A display panel including a first pixel and a second pixel spaced apart from the first pixel; A light control layer including light blocking layers and an alignment key layer, which are disposed on the display panel and include a first light blocking portion and a second light blocking portion; and A window layer disposed on the above light control layer; The above first light blocking portion, when viewed on a plane, entirely surrounds the first pixel, The second light blocking portion is opened on the first side of the second pixel along the first direction and surrounds the second side of the first pixel along a second direction different from the first direction, The display device is configured to operate in a first mode in which the first pixel is configured to provide light or in a second mode in which the second pixel is configured to provide light, The alignment key layer is arranged in the same layer as at least one of the light blocking layers. Electronic devices.

Images