Display device and electronic device including the same

Abstract

The utility model relates to a display device and an electronic device including the same. The display device includes a display layer and a light control layer. The light control layer is disposed on a surface of the display layer. The light control layer includes a color filter and a scattering layer. The color filter is disposed between the scattering layer and the display layer in a direction perpendicular to a surface of the display layer.

Description

[0001] Cross Reference to Related Applications

[0002] This application claims priority to and the benefit of Korean Patent Application No. 10-2024-0020559, filed on February 13, 2024, in the Korean Intellectual Property Office, the entire contents of which are incorporated herein by reference. TECHNICAL FIELD

[0003] The disclosure relates generally to a display device and an electronic device including the same. BACKGROUND

[0004] In recent years, as interest in information display has increased, research and development of display devices have been continuously conducted.

[0005] The background technology provided herein is for the purpose of generally presenting the background of the disclosure. To the extent that work of the presently-named inventors described in this Background section is not designated as prior art by the claims, neither expressly nor by implication, the description herein of work of the presently-named inventors, and aspects of the description that can not be prior art at the time the application is made, is not to be construed as an admission that the work described is prior art with respect to the disclosure. SUMMARY

[0006] In one aspect, it is possible to provide a display device and an electronic device including the same having a relatively high resolution display quality by improving an aperture ratio corresponding to an area in which light can be output.

[0007] In one aspect, it is possible to provide a display device and an electronic device including the same in which a risk of color mixing between sub-pixels can be reduced.

[0008] In one aspect, it is possible to provide a display device and an electronic device including the same having improved convenience in process design for manufacturing a pixel.

[0009] Additional aspects will be set forth in the detailed description to follow, and in part will be apparent from the disclosure, or can be learned by practice of the disclosed embodiments and / or claims.

[0010] According to some embodiments, a display device includes a display layer and a light control layer. The light control layer is disposed on a surface of the display layer. The light control layer includes a color filter and a scattering layer. The color filter is disposed between the scattering layer and the display layer in a direction perpendicular to the surface of the display layer.

[0011] In some embodiments, the display device can further include a first sub-pixel configured to emit light of a first color, a second sub-pixel configured to emit light of a second color, and a third sub-pixel configured to emit light of a third color. The scattering layer can overlap each of the first sub-pixel, the second sub-pixel, and the third sub-pixel, respectively.

[0012] In some embodiments, the display apparatus can further include a bank surrounding a region in a view in the direction. Each of the first, second, and third sub-pixels can form a sub-pixel of a pixel, respectively. The display apparatus can include a plurality of pixels, and the pixel can be one of the plurality of pixels. The color filter can include a first color filter overlapping the first sub-pixel in the direction, a second color filter overlapping the second sub-pixel in the direction, and a third color filter overlapping the third sub-pixel in the direction. The plurality of pixels can be spaced apart from each other by the bank. In the view in the direction, an outer boundary of the first color filter can correspond to an outer boundary of the first sub-pixel, an outer boundary of the second color filter can correspond to an outer boundary of the second sub-pixel, and an outer boundary of the third color filter can correspond to an outer boundary of the third sub-pixel.

[0013] In some embodiments, both the scattering layer and the color filter can directly contact the side surface of the bank.

[0014] In some embodiments, the scattering layer can include at least one of titanium oxide (TiO x ), silicon dioxide (SiO2), zirconium oxide (ZrO x ), aluminum oxide (Al x O y ), indium oxide (In x O y ), zinc oxide (ZnO x ), tin oxide (SnO x ), and antimony oxide (Sb x O y ), where "x" and "y" are positive integers. The silicon dioxide can include at least one of silicon dioxide beads and hollow silicon dioxide. The display layer can include a light emitting element layer. The light emitting element layer can include a first light emitting element layer configured to emit light of a first color, a second light emitting element layer configured to emit light of a second color, and a third light emitting element layer configured to emit light of a third color.

[0015] In some embodiments, the display apparatus can further include a filling layer disposed on the scattering layer, and an upper substrate disposed on the filling layer. The filling layer can be disposed between the upper substrate and the display layer in the direction.

[0016] In some embodiments, the display apparatus can further include a filling layer disposed between the color filter and the display layer in the direction, and an upper substrate disposed on the scattering layer. The scattering layer can be disposed between the upper substrate and the display layer in the direction.

[0017] In some embodiments, the scattering layer can include at least one filler material and a scattering body dispersed in the at least one filler material.

[0018] In some embodiments, the display device can further include a non-sub-pixel region that can not overlap any of the first, second, and third sub-pixels in the direction; and a black matrix layer. The bank and the black matrix layer can be disposed in the non-sub-pixel region.

[0019] In some embodiments, the display device can further include a low reflection layer disposed on the upper substrate. The upper substrate can be disposed between the low reflection layer and the display layer in the direction.

[0020] In some embodiments, the display device can further include a low reflection layer disposed between the upper substrate and the fill layer in the direction.

[0021] In some embodiments, the display device can further include an optical layer overlapping each of the first, second, and third sub-pixels in the direction. The optical layer can have a refractive index lower than a refractive index of the scattering layer.

[0022] In some embodiments, the display device can further include an intermediate bank structure disposed between at least two of the first, second, and third sub-pixels in a view in the direction. A height of the intermediate bank structure from a surface of the display layer in the direction can be less than a height of the bank from the surface of the display layer in the direction.

[0023] In some embodiments, the intermediate bank structure can include a first surface facing the display layer and a second surface opposite the first surface. The second surface of the intermediate bank structure can be covered by the color filter.

[0024] In some embodiments, the display device can further include a color conversion layer disposed between the first color filter and the display layer in the direction; and an intermediate bank surrounding at least a portion of the color conversion layer in a view in the direction.

[0025] In some embodiments, the display device can further include an optical layer disposed on the color filter. The optical layer can have a refractive index smaller than a refractive index of the scattering layer. A portion of the optical layer can be disposed between the first color filter and the color conversion layer in the direction and in an area overlapping the first sub-pixel in the direction.

[0026] In some embodiments, the display apparatus can further include a first sub-pixel configured to emit light of a first color, a second sub-pixel configured to emit light of a second color, a third sub-pixel configured to emit light of a third color, and a color conversion layer overlapping the first sub-pixel in the direction. The color filter can include a first color filter overlapping the first sub-pixel in the direction, a second color filter overlapping the second sub-pixel in the direction, and a third color filter overlapping the third sub-pixel in the direction. The color conversion layer can be disposed between the first color filter and the display layer in the direction. The scattering layer can not overlap the first sub-pixel in the direction. The scattering layer can overlap the second sub-pixel and the third sub-pixel in the direction, respectively.

[0027] In some embodiments, the display apparatus can further include an intermediate bank structure disposed between the second sub-pixel and the third sub-pixel in a view in the direction. A height of the intermediate bank structure from a surface of the display layer in the direction can be less than a height of the bank from the surface of the display layer in the direction.

[0028] In some embodiments, the display apparatus can further include an upper layer disposed on the light control layer. The upper layer can include a fill layer and an upper substrate disposed on the fill layer. The fill layer can be disposed between the upper substrate and the display layer in the direction. The first color filter can be disposed between the upper substrate and the fill layer in the direction.

[0029] In some embodiments, the display apparatus can further include an optical layer. At least a first portion of the optical layer can be disposed on the color conversion layer. At least a second portion of the optical layer can be disposed on the scattering layer. A refractive index of the optical layer can be less than a refractive index of the scattering layer.

[0030] The foregoing general description and the following detailed description are exemplary and explanatory, and are intended to provide further explanation of the subject matter claimed.

[0031] According to some embodiments, an electronic apparatus includes a processor configured to provide an image data signal, and a display apparatus including a display module receiving the image data signal. The display apparatus includes a display layer, and a light control layer disposed on a surface of the display layer, the light control layer including a color filter and a scattering layer. The color filter is disposed between the scattering layer and the display layer in a direction perpendicular to the surface of the display layer. BRIEF DESCRIPTION OF DRAWINGS

[0032] In the drawings, which are included by way of example and not limitation, various embodiments disclosed herein are illustrated by way of example and not limitation in the accompanying drawings, in which like reference numerals and / or symbols indicate corresponding elements.

[0033] Figure 1 is a plan view schematically illustrating a display apparatus according to an embodiment.

[0034] Figure 2 is a cross-sectional view schematically illustrating a display device according to an embodiment. Figure 1

[0035] Figure 3 is a diagram schematically illustrating a display layer according to an embodiment.

[0036] Figure 4 is a diagram for explaining a path of light provided by a light emitting element according to an embodiment.

[0037] Figures 5 to 7 is a plan view schematically illustrating one or more display devices according to some embodiments.

[0038] Figures 8 to 17 is a cross-sectional view schematically illustrating one or more display devices according to some embodiments.

[0039] Figures 18 to 20 is a plan view schematically illustrating one or more display devices according to some embodiments.

[0040] Figures 21 to 27 is a cross-sectional view schematically illustrating one or more display devices according to some embodiments.

[0041] Figure 28 is a block diagram of an electronic device according to an embodiment.

[0042] Figure 29 schematics of various embodiments of electronic devices. DETAILED DESCRIPTION

[0043] In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of one or more embodiments or implementations. The term "embodiment" and "implementation" can be used interchangeably to describe one or more non-limiting examples of the systems, devices, methods, etc. described herein. However, it will be apparent to one skilled in the art that the various embodiments can be practiced without these specific details or with one or more equivalent arrangements. In other instances, well-known structures and devices are shown in block diagram form in order to avoid unnecessarily obscuring the various embodiments. Further, various embodiments can be different but need not necessarily be exclusive. For example, specific shapes, configurations, and features of an embodiment can be used or implemented in another embodiment without departing from the teachings of the present disclosure.

[0044] ​Unless otherwise specified, the illustrated embodiments are to be understood as providing illustrative features of variations of some embodiments. Thus, unless otherwise specified, the various features, components, modules, layers, films, areas, aspects, structures, etc. (hereinafter referred to as “elements”) of the drawings, individually or collectively, can be combined, separated, interchanged, and / or rearranged without departing from the teachings of the present disclosure.

[0045] The use of cross-hatching and / or shading in the drawings is generally provided to illustrate the boundaries, of the elements depicted therein. As such, unless specified, the presence or absence of cross-hatching and / or shading in no way changes the meaning or interpretation of such elements. The use of cross-hatching and / or shading is generally done for clarity and / or description purposes and, thus, is not a requirement. Moreover, the elements depicted in the drawings / associated text can or can not be to scale. Additionally, some elements in the drawings can be shown exaggerated in number and / or in physical size, and / or in regional density. As such, the same or differently numbered elements in different drawings can or can not represent the same element, or similar elements. Thus, any number of elements can be utilized, and the elements depicted can be combined, separated, interchanged, and / or rearranged without departing from the teachings of the present disclosure. Additionally, some of the elements depicted can not be required in certain embodiments.

[0046] When an element such as a layer, region, or substrate is referred to as being “on” another element, by, on, connected to, or coupled to, another element, it can be directly on, on, connected, or coupled to the other element, or one or more intervening elements can also be present. In contrast, when an element such as a layer, region, or substrate is referred to as being “directly on,” “directly connected to,” or “directly coupled to” another element, there are no intervening elements present. Like terms can be used interchangeably, such as “connected” and “coupled,” unless otherwise specified. In addition, terms such as “first,” “second,” “third,” etc., can be used herein to describe various elements, but such elements should not be limited by these terms. Such terms can be used interchangeably, and do not necessarily describe an ordinal or chronological sequence. For example, a “second” element can be a “first” element, and vice versa.

[0047] For the purposes of the present disclosure, the first axis extending along the first direction DR1, the second axis extending along the second direction DR2, and the third axis extending along the third direction DR3 are not limited to the three axes of an orthogonal coordinate system such as the x-axis, the y-axis, and the z-axis of a Cartesian coordinate system, and can be interpreted in a broader sense. For example, the first axis, the second axis, and the third axis can be perpendicular to each other, or can represent different directions that are not perpendicular to each other. Furthermore, if used herein, the phrases “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 to mean only X, only Y, …, only Z, or any combination of two or more of X, Y, …, and Z, such as, for example, XYZ, XY, YZ, and XZ. Furthermore, if used herein, the term “and / or” includes any and all combinations of one or more of the associated listed items.

[0048] Although the terms “first,” “second,” “third,” etc. can be used herein to describe various elements, these elements should not be limited by these terms. These terms are used to distinguish one element from another. Thus, a first element discussed below could be termed a second element without departing from the teachings of the present disclosure. As such, the use of such identifying terminology (e.g., “first element”) should not be understood to (implicitly or explicitly) imply the existence of a second element (e.g., “second element”) unless explicitly stated otherwise.

[0049] For the purposes of the present disclosure, spatial relative terms such as “beneath,” “below,” “lower,” “under,” “above,” “upper,” “over,” “higher,” “side” (as in “sidewall”), and the like, can be used herein for ease of describing the aspects of the present disclosure as illustrated in the drawings, and by which it is meant the spatial relationships of one element to another element as shown in the figures. The spatially relative terms are intended to encompass different orientations of the device in use, operation, and / or manufacture in addition to the orientations depicted in the figures. For example, if a device in the figures is turned over, elements described as “below” or “beneath” other elements or features would then be oriented “above” or “over” the other elements or features. Thus, the term “below” can encompass both an orientation of above and below. Moreover, the device can be otherwise oriented (e.g., rotated 90 degrees or at other orientations) and, as such, the spatially relative descriptors used herein are interpreted accordingly.

[0050] The terminology used herein is for the purpose of describing embodiments and is not intended to be limiting. As used herein, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be understood that the phrases "for each <item> of one or more <items>," "each <item> of one or more <items>," and the like, if used herein, include both single and multiple item groups, i.e., the phrase "for each" is used in its meaning in programming languages to refer to each item in a group of any items referenced. For example, if the group of items referenced is a single item, then "each" that follows would refer only to that single item (although the dictionary definition of "each" often defines the term to mean "each of two or more things") and would not imply that there must be at least two of the items. Similarly, the term "set" or "subset" should not be taken to necessarily include multiple items by itself— it should be understood that a set or subset can include only one member or multiple members (unless the context indicates otherwise).

[0051] The terms "comprises", "comprising", "includes", "including", "has", "have", and / or "having" as used herein, specify the presence of stated features, integers, steps, operations, elements, components and / or groups thereof but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups thereof. It should also be noted that as used herein the terms "basically", "about", "approximately" and other similar terms are used as approximate terms and not as degree terms, and thus are used to account for inherent deviations in measured, calculated and / or provided values that would be recognized by one of ordinary skill in the art. Thus, if used herein and unless otherwise specified, the term "basically" can mean within 5% of a reference value. For example, basically vertical can mean within ±5% of parallel. Furthermore, if used herein in connection with a range of values, the term "between" should be understood to include the start and end values of the range, unless otherwise specified. For example, between 1 and 5 should be understood to include the numbers 1, 2, 3, 4 and 5, and not just the numbers 2, 3 and 4.

[0052] Various implementations are described herein with reference to cross-sectional illustrations, equivalent diagrams, solid diagrams, orthogonal diagrams, and / or exploded diagrams that are schematic depictions of idealized embodiments and / or intermediate structures that can be utilized in the manufacture of the devices. As such, variations from the shapes of the illustrations as a result, for example, of manufacturing techniques and / or tolerances, are to be expected. Thus, embodiments disclosed herein should not be construed as limited to the particular illustrated shapes of regions, but are to include deviations in shapes that result from, for example, manufacturing. To that extent, the regions illustrated in the figures are schematic and their shapes do not necessarily illustrate the actual shapes of the regions in a device and, therefore, are not intended to limit the scope of the embodiments.

[0053] As is conventional in the art, some implementations can be described and illustrated with reference to functional block diagrams, units, and / or modules. Those skilled in the art will appreciate that the block diagrams, units, and / or modules described herein can be physically implemented by an electrical circuitry (or an optical circuitry) such as a logic circuit, a discrete component, a microprocessor, a hard-wired circuit, a memory element, a wire connector, and the like using semiconductor-based manufacturing techniques or other technologies. In cases where the block diagrams, units, and / or modules are implemented by a microprocessor or other similar hardware, they can be programmed and controlled by software (e.g., microcode) to perform various functions discussed herein and can be driven selectively by firmware and / or software. It is also contemplated that each block, unit, and / or module can be implemented by dedicated hardware as is also conventional in the art. Also, in some implementations, each block, unit, and / or module in some implementations can be physically separated into two or more interacting and discrete blocks, units, and / or modules without departing from the scope of the disclosure. In addition, blocks, units, and / or modules in some implementations can be physically combined into more complex blocks, units, and / or modules without departing from the scope of the disclosure.

[0054] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. Terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

[0055] Hereinafter, various embodiments will be described in detail with reference to the accompanying drawings.

[0056] Figure 1 is a plan view schematically showing a display device according to an embodiment.

[0057] Referring toFigure 1 The display device DD may include a base layer BSL and pixels PXL disposed on the base layer BSL. The display device DD may also include driving circuitry (e.g., scan driver and / or data driver), wiring, and pads for driving the pixels PXL.

[0058] The display device DD (or base layer BSL) may include a display area DA and a non-display area NDA. The non-display area NDA may refer to an area other than the display area DA. The non-display area NDA may surround at least a portion of the display area DA.

[0059] The base layer (BSL) can form the base surface of the display device (DD). According to embodiments, the base layer (BSL) can be a lower substrate on which one or more other layers forming the display device (DD) are disposed. The base layer (BSL) can be at least one of a rigid or flexible substrate or film. For example, the base layer (BSL) can include a glass material. In some implementations, the base layer (BSL) can include a silicon material. According to some embodiments, the base layer (BSL) can include polyimide. However, embodiments are not limited to the materials described above.

[0060] The display area DA can refer to the area where pixels PXL are set. In some cases, the display area DA can refer to the area where an image can be displayed via pixels PXL. The non-display area NDA can refer to the area where pixels PXL are not set. In some cases, the non-display area NDA can refer to the area where no image is displayed. The driving circuitry, wiring, and pads of the pixels PXL electrically connected to the display area DA can be located in the non-display area NDA, but the implementation is not limited to this configuration.

[0061] According to the implementation method, pixel PXL (or sub-pixel SPX) can be based on, for example, stripes, The arrangement is carried out in a structure (or pattern) as described above. However, the implementation is not limited to the aforementioned arrangement structure.

[0062] According to an implementation, a pixel PXL (or sub-pixel SPX) may include a first sub-pixel SPX1, a second sub-pixel SPX2, and a third sub-pixel SPX3. The first sub-pixel SPX1, the second sub-pixel SPX2, and the third sub-pixel SPX3 may be sub-pixels. At least one first sub-pixel SPX1, at least one second sub-pixel SPX2, and at least one third sub-pixel SPX3 may form a unit pixel configured to emit light of various colors.

[0063] Each of the first sub-pixel SPX1, the second sub-pixel SPX2, and the third sub-pixel SPX3 can emit light of at least one color.

[0064] For example, the first sub-pixel SPX1 can be a red sub-pixel that emits red (e.g., a first color) light. The second sub-pixel SPX2 can be a green sub-pixel that emits green (e.g., a second color) light. The third sub-pixel SPX3 can be a blue sub-pixel that emits blue (e.g., a third color) light. The red sub-pixel can provide light in a wavelength range of approximately 600 nm to approximately 750 nm. The green sub-pixel can provide light in a wavelength range of approximately 480 nm to approximately 560 nm. The blue sub-pixel can provide light in a wavelength range of approximately 370 nm to approximately 460 nm.

[0065] According to embodiments, the number of the second sub-pixels SPX2 can be greater than the number of the first sub-pixels SPX1 and the number of the third sub-pixels SPX3. However, the color, type, and / or number of the first sub-pixels SPX1, the second sub-pixels SPX2, and the third sub-pixels SPX3 forming each unit pixel are not limited to the aforementioned examples.

[0066] Reference will be made to Figures 2 to 4 In more detail, the display device DD will be described in connection with Figure 1 A more comprehensive structure of the display device DD including cross-sectional structures will be described.

[0067] Figure 2 is a cross-sectional view schematically illustrating a display device according to an embodiment. Figure 1 is a cross-sectional view schematically illustrating a display device according to an embodiment. Figure 3 is a diagram schematically illustrating a display layer according to an embodiment. Figure 4 is a diagram for explaining a path of light provided (or emitted) by a light emitting element according to an embodiment.

[0068] Reference will be made to Figures 2 to 4 The display device DD can include a display layer DL, a light control layer LCL, and an upper layer UL.

[0069] The display layer DL can be configured to emit light. The display layer DL can form a substrate on which the light control layer LCL is disposed.

[0070] The display layer DL can include a pixel circuit layer PCL including a base layer BSL and a light emitting element layer LEL including light emitting elements LD forming respective portions of the pixels PXL.

[0071] The base layer BSL can form a base on which the pixel circuit PXC is provided. The pixel circuit PXC can be provided on the base layer BSL and can be configured to drive the light emitting element LD. The pixel circuit layer PCL can comprise a conductive layer and an insulating layer, and the conductive layer can form the pixel circuit PXC. The pixel circuit PXC can comprise circuit elements configured to drive the sub-pixel SPX (or the light emitting element LD of the sub-pixel SPX). The circuit elements can comprise a drive transistor and can further comprise one or more other transistors and capacitor(s).

[0072] The light emitting element layer LEL can be provided on the pixel circuit layer PCL. According to embodiments, the light emitting element layer LEL can comprise the light emitting element LD. According to embodiments, the light emitting element layer LEL can comprise a first light emitting element layer configured to emit light of a first color, a second light emitting element layer configured to emit light of a second color, and a third light emitting element layer configured to emit light of a third color.

[0073] For example (see Figure 3 ), the light emitting element LD can comprise (or be configured as) an organic light emitting diode (OLED) which can comprise at least one organic material. Figure 3 Embodiments are schematically illustrated in which the light emitting element LD is an organic light emitting diode. Figure 3 A cross-sectional structure of the display device DD in the display area DA is illustrated, and a cross-sectional structure of the display layer DL comprising the pixel circuit layer PCL and the light emitting element layer LEL is schematically illustrated.

[0074] According to embodiments, the light emitting element layer LEL can further comprise a pixel defining layer PDL, a capping layer CPL, and a top film encapsulation TFE.

[0075] According to embodiments, the light emitting element LD can be provided on the pixel circuit layer PCL. The light emitting element LD can comprise a first light emitting element LD1 comprised in the first sub-pixel SPX1 (see Figure 8 ), a second light emitting element LD2 comprised in the second sub-pixel SPX2 (see Figure 8 ), and a third light emitting element LD3 comprised in the third sub-pixel SPX3 (see Figure 8 ).

[0076] According to embodiments, the light emitting element LD can include a first electrode EL1, a light emitting layer EL, and a second electrode EL2. According to embodiments, the light emitting layer EL can be disposed in an area defined (or at least partially bounded) by the pixel defining layer PDL. For example, the light emitting layer EL can be disposed in an opening formed in the pixel defining layer PDL. One side of the light emitting layer EL can be electrically connected to the first electrode EL1, and the other side of the light emitting layer EL can be electrically connected to the second electrode EL2. In some embodiments, the one side of the light emitting layer EL and the other side of the light emitting layer EL can be opposite to each other in a direction orthogonal to the upper surface of the base layer BSL, such as the third direction DR3.

[0077] The first electrode EL1 can be an anode electrode of the light emitting element LD, and the second electrode EL2 can be a cathode electrode of the light emitting element LD. However, it is conceivable that the opposite case can also be correct. For example, the first electrode EL1 can be a cathode electrode of the light emitting element LD, and the second electrode EL2 can be an anode electrode of the light emitting element LD. According to embodiments, the first electrode EL1 and the second electrode EL2 can include a conductive material. For example, the conductive material can include at least one of gold (Au), silver (Ag), aluminum (Al), molybdenum (Mo), chromium (Cr), titanium (Ti), nickel (Ni), neodymium (Nd), copper (Cu), and platinum (Pt). In some embodiments, the conductive material can additionally or alternatively include at least one of silver nanowires (AgNW), indium tin oxide (ITO), indium zinc oxide (IZO), indium gallium zinc oxide (IGZO), antimony zinc oxide (AZO), indium tin zinc oxide (ITZO), zinc oxide (ZnO), tin oxide (SnO2), carbon nanotubes, and graphene. However, embodiments are not limited to the above-described materials.

[0078] The light emitting layer EL can emit light based on (or in accordance with) an electrical signal provided from at least one of an anode electrode (e.g., the first electrode EL1) and a cathode electrode (e.g., the second electrode EL2). For example, the light emitting layer EL can emit light based on (or in accordance with) a potential difference between the anode electrode (e.g., the first electrode EL1) and the cathode electrode (e.g., the second electrode EL2).

[0079] The light emitting layer EL can include a multi-layer structure. For example, the light emitting layer EL can include a plurality of light emitting structures, each of which can include a hole transport unit, a light generating layer, and an electron transport unit. Each layer forming the light emitting structure can include an organic material, and according to embodiments, can also include an inorganic material such as a metal-containing compound or a quantum dot, or a combination thereof.

[0080] The hole transport unit can include a multi-layer structure having a plurality of layers, each of the plurality of layers can include a different material, or at least one of the plurality of layers can include a different material. As an example, the hole transport unit can include at least one of a hole injection layer and a hole transport layer, and according to an embodiment, can further include at least one of a light-emitting auxiliary layer, an electron blocking layer, etc. For example, the hole transport unit can have a multi-layer structure such as a hole injection layer / hole transport layer, a hole injection layer / hole transport layer / light-emitting auxiliary layer, a hole injection layer / light-emitting auxiliary layer, a hole transport layer / light-emitting auxiliary layer, an electron blocking layer / hole injection layer / hole transport layer, a hole transport layer arranged in sequence and including different materials, a hole injection layer / hole transport layer / electron blocking layer, etc. However, embodiments are not limited to the above-described structures.

[0081] The light generating layer can include a material configured to emit light of at least one color. The light generating layer can include a host and a dopant. The host of the light generating layer can be a light-emitting material configured to trap carriers (e.g., electrons and holes) to generate light, and can induce relatively efficient generation of excitons. The dopant can include a phosphorescent dopant or a fluorescent dopant, or a combination thereof. However, the dopant is not limited to the foregoing examples. According to an embodiment, the dopant can additionally or alternatively include an organic material, and can additionally or alternatively include a metal complex, etc.

[0082] The electron transport unit can include a multi-layer structure having a plurality of layers, each of the plurality of layers can include a different material, or at least one of the plurality of layers can include a different material. The electron transport unit can include at least one of an electron injection layer and an electron transport layer, and according to an embodiment, can further include at least one of an electron buffer layer, a hole blocking layer, an electron control layer, etc. For example, the electron transport unit can have a multi-layer structure such as an electron transport layer / electron injection layer, a hole blocking layer / electron transport layer / electron injection layer, an electron control layer / electron transport layer / electron injection layer, an electron buffer layer / electron transport layer / electron injection layer, etc. However, embodiments are not limited to the above-described structures.

[0083] The pixel defining layer PDL can be disposed on the pixel circuit layer PCL to define (or at least partially delimit) a position where the light-emitting layer EL is arranged. The pixel defining layer PDL can include an organic material. For example, the pixel defining layer PDL can include at least one of an acrylic resin, an epoxy resin, a phenol resin, a polyamide resin, and a polyimide resin. However, embodiments are not limited to the foregoing materials. In some embodiments, the pixel defining layer PDL can include an inorganic material. For example, the pixel defining layer PDL can include silicon oxide (SiO x ) and silicon nitride (SiN xat least one of SiOx, SiNx, and SiOxNy, where "x" and "y" are positive integers. According to an embodiment, the pixel definition layer PDL can have a multi-layer structure in which a layer including SiOxand a layer including SiNxare stacked on each other. x ) and a layer including SiNx x ) are stacked on each other.

[0084] A capping layer CPL can be disposed on the second electrode EL2. The capping layer CPL can cap or cover the second electrode EL2. The capping layer CPL can include an inorganic material.

[0085] A thin film encapsulation layer TFE can be disposed on the light emitting element LD (e.g., the second electrode EL2). The thin film encapsulation layer TFE can reduce a step difference caused by the light emitting element LD and the pixel definition layer PDL at least partially formed by a lower layer. The thin film encapsulation layer TFE can include a plurality of insulating layers covering the light emitting element LD. According to an embodiment, the thin film encapsulation layer TFE can have a structure in which one or more inorganic layers and one or more organic layers are alternately stacked on each other. According to an embodiment, the thin film encapsulation layer TFE can be a thin film encapsulation layer.

[0086] A light control layer LCL can be disposed on the display layer DL (e.g., the light emitting element layer LEL). For example, the light control layer LCL can be disposed on a first (e.g., upper) side of the display layer DL based on a display direction (e.g., the third direction DR3).

[0087] According to an embodiment, the light control layer LCL can include a layer configured to change a color of incident light, and can include a layer scattering the incident light. For example, the light control layer LCL can include a color filter CF and a scattering layer SCL. The color filter CF can selectively transmit light of a color. The scattering layer SCL can scatter the incident light. In some cases, the light control layer LCL can be configured to change the color of the incident light and / or scatter the incident light as the incident light propagates through the light control layer LCL.

[0088] The color filter CF can be disposed between the light emitting element LD and the scattering layer SCL. For example, the light emitting element LD, the color filter CF, and the scattering layer SCL can be arranged in order based on the third direction DR3.

[0089] An upper layer UL can be disposed on the light control layer LCL. For example, the upper layer UL can be disposed on a first (e.g., upper) side of the light control layer LCL based on a display direction (e.g., the third direction DR3).

[0090] According to an embodiment, the upper layer UL can include an upper substrate UPL (see Figure 8 ). According to an embodiment, the upper layer UL can include various structures and / or layers to improve display quality of the display device DD.

[0091] Referring to Figure 4According to embodiments, structural features of the display device DD that are designed to achieve a relatively high resolution display quality and reduce the risk of color mixing between sub-pixels SPX will be described.

[0092] According to embodiments, light provided (or emitted) by the light emitting element LD can be provided (e.g., output) in a display direction (e.g., the third direction DR3). The color filter CF can be disposed on the light emitting element LD along the third direction DR3, and the scattering layer SCL can be disposed on the color filter CF. Thus, light provided by the light emitting element LD can pass through the color filter CF and the scattering layer SCL in sequence.

[0093] According to embodiments, the viewing angle characteristics of the display device DD can be improved when light provided by the light emitting element LD passes through the color filter CF and the scattering layer SCL in sequence.

[0094] For example, the scattering layer SCL can be substantially disposed at a periphery of the display device DD based on the display direction (e.g., the third direction DR3). Thus, light generated by the sub-pixel SPX can be relatively effectively scattered, thereby improving the viewing angle characteristics of the display device DD.

[0095] According to embodiments, the scattering layer SCL can be disposed on the color filter CF and can be formed across two or more sub-pixels SPX, such as two or more sub-pixels SPX adjacent (e.g., directly adjacent) to each other. Thus, the viewing angle characteristics of the display device DD can be further improved.

[0096] According to embodiments, at least because the scattering layer SCL is disposed above the color filter CF, the risk of color mixing between sub-pixels SPX can be reduced. This will be described in more detail below with reference to one or more of the accompanying drawings. Figure 5 Hereinafter, one or more of the accompanying drawings will be described.

[0097] According to embodiments, at least because the scattering layer SCL is disposed above the color filter CF, the risk of over-forming (e.g., thickness in the third direction DR3) of the bank structure in the pixel PXL can be reduced. At least because the bank structure is not over-formed in the pixel PXL, light loss due to the bank structure can be reduced. Thus, the light output efficiency of the display device DD can be improved. This will be described in more detail below with reference to one or more of the accompanying drawings. Figure 5 Hereinafter, one or more of the accompanying drawings will be described.

[0098] One or more display devices according to various embodiments will now be described with reference to the Figures 5 to 17 described above will be omitted.

[0099] Figures 5 to 7is a schematic plan view illustrating one or more display devices according to some embodiments. As used herein, a “plan view” can be a view of a display device in a direction normal to a first (e.g., upper) surface of a base layer BSL. For example, a “plan view” can be a view of a display device as viewed in a third direction DR3. Figure 5 and Figure 6 Various pixels PXL and PXL_1 are schematically illustrated, and in particular, various arrangements of different sub-pixels SPX are schematically illustrated. Figure 7 An arrangement in which pixels PXL are arranged in series is schematically illustrated.

[0100] Figures 8 to 17 is a schematic cross-sectional view illustrating one or more display devices according to some embodiments. For example, Figures 8 to 17 Cross-sectional views of first to third sub-pixels SPX1 to SPX3 according to some embodiments are schematically illustrated.

[0101] Referring to Figures 5 to 7 , a display device can include banks BNK disposed in a display area DA. A pixel PXL (or PXL_1) can include one or more sub-pixels SPX, and the pixel PXL (or PXL_1) and / or the sub-pixels SPX can be arranged according to any suitable arrangement or pattern. For example, the pixels PXL can be arranged in a matrix structure based on a first direction DR1 and a second direction DR2 that can be transverse to the first direction DR1. However, embodiments are not limited to the aforementioned arrangement.

[0102] According to embodiments, the sub-pixels SPX can be arranged in various structures. For example (see Figure 5 ), first to third sub-pixels SPX1 to SPX3 can be arranged in series along a direction (e.g., the first direction DR1). In some embodiments (see Figure 6 ), the second and third sub-pixels SPX2 and SPX3 can be arranged along the first direction DR1, and the first sub-pixel SPX1 can be arranged adjacent to the second and third sub-pixels SPX2 and SPX3 along a second direction DR2 that is different from (e.g., normal to) the first direction DR1. However, embodiments are not limited to the aforementioned arrangement.

[0103] The pixels PXL (or PXL_1) can be distinguished from each other based on the banks BNK. For example, the banks BNK can be disposed between the pixels PXL (or PXL_1) adjacent to each other. According to embodiments, the banks BNK can be adjacent (e.g., directly adjacent) to the pixels PXL (or PXL_1) in one or more directions. The banks BNK can surround each of the pixels PXL (or PXL_1) in a plan view.

[0104] Each pixel PXL can include a subpixel SPX. Subpixels SPX can form a corresponding subpixel region SPXA (or can be set in a corresponding subpixel region SPXA). Each subpixel region SPXA can be a region that emits light of a certain color.

[0105] The sub-pixel region SPXA may include a first sub-pixel region SPXA1 that forms a first sub-pixel SPX1 and provides light of a first color, a second sub-pixel region SPXA2 that forms a second sub-pixel SPX2 and provides light of a second color, and a third sub-pixel region SPXA3 that forms a third sub-pixel SPX3 and provides light of a third color.

[0106] According to the implementation, the dam BNK can be adjacent to (e.g., directly adjacent to) the sub-pixel region SPXA. For example, the dam BNK can be adjacent to (e.g., directly adjacent to) the first sub-pixel region SPXA1 in the planar view. The dam BNK can be adjacent to (e.g., directly adjacent to) the second sub-pixel region SPXA2 in the planar view. The dam BNK can be adjacent to (e.g., directly adjacent to) the third sub-pixel region SPXA3 in the planar view.

[0107] According to the implementation, sub-pixel regions SPXA of different colors can be adjacent to each other in the planar diagram (e.g., directly adjacent). For example, the first sub-pixel region SPXA1 and the second sub-pixel region SPXA2 can be adjacent to each other in the planar diagram (e.g., directly adjacent). The first sub-pixel region SPXA1 and the third sub-pixel region SPXA3 can be adjacent to each other in the planar diagram (e.g., directly adjacent). The second sub-pixel region SPXA2 and the third sub-pixel region SPXA3 can be adjacent to each other in the planar diagram (e.g., directly adjacent).

[0108] According to the implementation, the dam BNK may not be disposed between sub-pixel regions SPXA in pixel PXL (or pixel PXL_1). Therefore, compared to conventional display devices, the area in which the dam BNK is formed in the region forming pixel PXL or PXL_1 can be minimized or at least reduced. In the following, the pixel arrangement will be assumed as follows... Figure 5 As shown in the diagram. Therefore, (multiple) pixels will be referred to as pixel PXL or pixels PXL. However, it should be noted that the effects and / or advantages described in conjunction with pixel PXL can also be applied to other pixel arrangements, such as the pixel arrangement described in conjunction with pixel PXL_1.

[0109] In this specification, the embankment BNK can be a structure that surrounds a region and protrudes in the thickness direction of the base layer BSL (e.g., the third direction DR3).

[0110] In a case where the bank BNK is disposed in the region where the pixel PXL is formed, light provided by the light emitting element can be absorbed by the bank BNK, resulting in light loss.

[0111] Since the range where the bank BNK is formed in the region where the pixel PXL is formed is minimized (or at least reduced), the aperture ratio formed by the bank BNK can be improved. Accordingly, the range (or area) where the sub-pixel region SPXA is formed can be increased.

[0112] However, according to embodiments, the bank BNK can not be disposed in the region where the pixel PXL is formed, and the above-described risk can be reduced. Accordingly, a display device having improved light output efficiency can be provided.

[0113] Since the range where the bank BNK is formed in the region where the pixel PXL is formed is minimized (or at least reduced), the design freedom of the sub-pixel SPX can be improved, and manufacturing process convenience can be improved.

[0114] Figures 8 to 17 A cross-sectional structure of one or more display devices in a display area DA according to some embodiments is shown. For ease of description, a cross-sectional structure in which first to third sub-pixels SPX1 to SPX3 are arranged in order is shown.

[0115] According to embodiments, the display device DD can include light emitting elements LD providing different colors associated with each of the first, second, and third sub-pixels SPX1, SPX2, and SPX3.

[0116] Reference Figure 8 In the display layer DL, the light emitting elements LD can include first to third light emitting elements LD1 to LD3 disposed on the base layer BSL.

[0117] According to embodiments, the first light emitting element LD1 can be disposed in the first sub-pixel region SPXA1 and can provide light of a first color. For example, the first light emitting element LD1 can be a red light emitting element. The second light emitting element LD2 can be disposed in the second sub-pixel region SPXA2 and can provide light of a second color. For example, the second light emitting element LD2 can be a green light emitting element. The third light emitting element LD3 can be disposed in the third sub-pixel region SPXA3 and can provide light of a third color. For example, the third light emitting element LD3 can be a blue light emitting element.

[0118] A light control layer LCL can be disposed on the display layer DL (e.g., the encapsulation layer TFE). The light control layer LCL can include the bank BNK, the color filter CF, the scattering layer SCL, and the upper cap layer CPL_Q.

[0119] The bank BNK can be disposed on the display layer DL (e.g., the encapsulation layer TFE). The bank BNK can protrude in a thickness direction of the base layer BSL (e.g., in the third direction DR3) and can surround the sub-pixel area SPXA. For example, the bank BNK can surround the color filter CF. The bank BNK can surround the scattering layer SCL. For example, an upper surface of the bank BNK can be further spaced apart from the base layer BSL than the color filter CF and the scattering layer SCL, e.g., in the third direction DR3.

[0120] The bank BNK can overlap the non-sub-pixel area NSPA in a plan view. For example, the bank BNK can overlap the non-sub-pixel area NSPA in a direction perpendicular to an upper surface of the base layer BSL. The bank BNK can not overlap the sub-pixel area SPXA in a plan view (e.g., in a direction perpendicular to an upper surface of the base layer BSL). A side surface of the bank BNK can be adjacent to (e.g., directly adjacent to) (e.g., in contact with) one or more of the color filter CF and the scattering layer SCL. According to embodiments, the non-sub-pixel area NSPA can be an area other than the sub-pixel area SPXA and can be an area in which light is not visually recognized.

[0121] The bank BNK can include various materials. For example, the bank BNK can include an organic material. According to embodiments, the bank BNK can include at least one of an acrylic resin, an epoxy resin, a phenol resin, a polyamide resin, and a polyimide resin. According to embodiments, the bank BNK can include a light-blocking material (e.g., a black matrix material). However, embodiments are not limited to the aforementioned materials.

[0122] The color filter CF can be disposed on the display layer DL (e.g., the encapsulation layer TFE). In a view in the third direction DR3, the color filter CF can be disposed in an area surrounded by the bank BNK. According to embodiments, the color filter CF can be formed using at least one photolithography process, although any additional or alternative process(es) can be utilized.

[0123] According to embodiments, the color filter CF can define the sub-pixel area SPXA. In some implementations, an outer boundary of the color filter CF can correspond to an outer boundary of the sub-pixel area SPXA. For example, an area in which the first color filter CF1 is disposed can correspond to (e.g., can be substantially identical to) the first sub-pixel area SPXA1 in a plan view. An area in which the second color filter CF2 is disposed can correspond to (e.g., can be substantially identical to) the second sub-pixel area SPXA2 in a plan view. An area in which the third color filter CF3 is disposed can correspond to (e.g., can be substantially identical to) the third sub-pixel area SPXA3 in a plan view.

[0124] According to an embodiment, the color filter CF can be disposed between the display layer DL (e.g., a package layer TFE of the display layer DL) and the scattering layer SCL.

[0125] The color filter CF can include first to third color filters CF1 to CF3 corresponding to the sub-pixels SPX. For example, the color filter CF can include the first color filter CF1, the second color filter CF2, and the third color filter CF3.

[0126] The first color filter CF1 can be disposed in the first sub-pixel area SPXA1. The first color filter CF1 can include a color filter material (e.g., a dye or a pigment or a combination thereof) that selectively transmits light of a first color (e.g., red).

[0127] The second color filter CF2 can be disposed in the second sub-pixel area SPXA2. The second color filter CF2 can include a color filter material (e.g., a dye or a pigment or a combination thereof) that selectively transmits light of a second color (e.g., green).

[0128] The third color filter CF3 can be disposed in the third sub-pixel area SPXA3. The third color filter CF3 can include a color filter material (e.g., a dye or a pigment or a combination thereof) that selectively transmits light of a third color (e.g., blue).

[0129] The scattering layer SCL can be disposed on the color filter CF. The scattering layer SCL can be disposed in an area surrounded by the bank BNK. According to an embodiment, the scattering layer SCL can be adjacent (e.g., directly adjacent) to the color filter CF. For example, the scattering layer SCL can be disposed on (e.g., directly disposed on) the color filter CF. However, embodiments are not limited to the foregoing arrangement.

[0130] The scattering layer SCL can include scatterers and a matrix material (e.g., an organic material) in which the scatterers are dispersed. Accordingly, light incident from the color filter CF can be scattered in the scattering layer SCL and emitted to the outside of the display device DD. According to an embodiment, the scattering layer SCL can include titanium oxide (TiO x ), silicon dioxide (SiO2) (e.g., silica beads, hollow silica, etc.), zirconium oxide (ZrO x ), aluminum oxide (Al x O y ), indium oxide (In x O y ), zinc oxide (ZnO x ), tin oxide (SnO x ), and antimony oxide (Sb x O yat least one of the following materials: MgO, Al2O3, SiO2, TiO2, ZrO2, HfO2, CeO2, Y2O3, La2O3, Gd2O3, Nd2O3, Sm2O3, Eu2O3, Tb2O3, Dy2O3, Ho2O3, Er2O3, Tm2O3, Yb2O3, Lu2O3, Sc2O3, In2O3, SnO2, GeO2, Ga2O3, and / or combinations thereof. However, embodiments are not limited to the above-mentioned materials.

[0131] According to embodiments, at least some of the sub-pixels SPX can share the same scattering layer SCL with each other. For example, the scattering layer SCL can be provided across the sub-pixel areas SPXA of the pixel PXL. The scattering layer SCL can be provided across the first sub-pixel area SPXA1, the second sub-pixel area SPXA2, and the third sub-pixel area SPXA3. According to embodiments, the scattering layer SCL can comprise a first portion included in the first sub-pixel SPX1, a second portion included in the second sub-pixel SPX2, and a third portion included in the third sub-pixel SPX3. The first portion to the third portion can be integrally formed with each other. For example, the first portion to the third portion of the scattering layer SCL can be integral with each other, e.g., the first portion to the third portion of the scattering layer SCL can be contiguous with each other and / or can be portions of a single body.

[0132] According to embodiments, at least because the scattering layer SCL provided on the color filter CF is provided across the sub-pixels SPX, manufacturing process convenience can be improved, and viewing angle characteristics of the display device DD can also be improved.

[0133] According to embodiments, at least because the scattering layer SCL provided on the color filter CF is provided across the sub-pixels SPX, the risk of color mixing between the sub-pixels SPX can also be reduced.

[0134] In case the scattering layer SCL is provided below the color filter CF, at least a portion of the light scattered by the scattering layer SCL formed in the sub-pixel SPX can be incident into at least one of the other sub-pixels SPX, and the light can be applied to a respective one of the color filters CF corresponding to the at least one of the other sub-pixels SPX. This can at least partially lead to the risk of light not providing the intended light information, e.g., light of the intended color and brightness, from the at least one of the other sub-pixels SPX.

[0135] In case the scattering layer SCL is provided below the color filter CF and quantum dots changing the color of the light of a color are provided in the scattering layer SCL and the light unnecessarily propagates between adjacent sub-pixels SPX, there can be a risk of light of a non-intended color and / or brightness being generated from a non-intended sub-pixel SPX.

[0136] However, according to embodiments, at least because the scattering layer SCL disposed on the color filter CF can be disposed across the sub-pixels SPX, the above-mentioned risk can be reduced. Thus, a display device DD having a relatively superior display quality can be provided by preventing (or at least mitigating) light loss and reducing the risk of color mixing. As the resolution of the display device DD increases, the likelihood of the above-mentioned risk occurring can increase, but according to some embodiments, at least because the above-mentioned risk can be mitigated by the relative disposition and configuration of the color filter CF and the scattering layer SCL, the display device DD can be manufactured to have a relatively high resolution and a relatively superior display quality.

[0137] The upper capping layer CPL_Q can be disposed on both the bank BNK and the scattering layer SCL. The upper capping layer CPL_Q can protect both the bank BNK and the scattering layer SCL. The upper capping layer CPL_Q can be physically separated from the color filter CF at least via the scattering layer SCL.

[0138] The upper capping layer CPL_Q can be an inorganic layer. The upper capping layer CPL_Q can include at least one of silicon nitride (SiN x ), aluminum nitride (AlN x ), titanium nitride (TiN x ), silicon oxide (SiO x ), aluminum oxide (Al x O y ), titanium oxide (TiO x ), silicon carbon oxide (SiO x C y ), and silicon nitrogen oxide (SiO x N y ). However, embodiments are not limited to the above-mentioned materials.

[0139] The upper layer UL can be disposed on the light control layer LCL. According to embodiments, the upper layer UL can include a filler layer FIL and an upper substrate UPL.

[0140] According to embodiments, the light control layer LCL can be disposed on the display layer DL, and the upper substrate UPL can be disposed on the light control layer LCL. The display device DD according to embodiments can be manufactured by disposing the filler layer FIL between the light control layer LCL and the upper substrate UPL.

[0141] The filler layer FIL can be disposed between the light control layer LCL and the upper substrate UPL. The filler layer FIL can include various transparent organic materials (e.g., an acrylic resin), but the material of the filler layer FIL is not limited to the aforementioned examples.

[0142] The upper substrate UPL can be a transparent substrate. For example, the upper substrate UPL can include glass. However, embodiments are not limited to the upper substrate UPL including glass. According to embodiments, the upper substrate UPL can include various materials. According to embodiments, the upper layer UL can include various functional film layers in addition to the upper substrate UPL.

[0143] Referring to Figure 9 Unlike the display apparatus DD described in connection with Figure 8 In the display apparatus DD_1 according to embodiments, layers of the light control layer LCL_1 other than the filling layer FIL can be disposed on the upper substrate UPL, and the filling layer FIL can be disposed between the upper capping layer CPL_Q of the light control layer LCL_1 and the display layer DL. In this way, the filling layer FIL can be considered as a part of the light control layer LCL_1 rather than a part of the upper layer UL_1.

[0144] For example, components constituting the light control layer LCL_1 can be disposed on the upper substrate UPL in sequence. Thus, similarly to as described in connection with Figure 8 The color filter CF can be disposed between the scattering layer SCL and the display layer DL (e.g., the light emitting element LD of the display layer DL), and the scattering layer SCL can be disposed to span two or more sub-pixel areas SPXA, for example.

[0145] Referring to Figure 10 Unlike the display apparatus DD described in connection with Figure 8 In the display apparatus DD_2 according to embodiments, the scattering layer SCL and the filling layer FIL can be integrally manufactured. For example, the scattering layer SCL and the filling layer FIL can be integral with each other. In this way, a first portion of the scattering and filling layer SCL(FIL) can form a part of the upper layer UL_2, and a second portion of the scattering and filling layer SCL(FIL) can form a part of the light control layer LCL_2.

[0146] For example, the scattering and filling layer SCL(FIL) can include scatterers and can include a filling material. Thus, the scattering and filling layer SCL(FIL) can perform the function of the filling layer FIL, and the scattering and filling layer SCL(FIL) can perform the function of the scattering layer SCL. Thus, the manufacturing process steps can be simplified.

[0147] Referring to Figure 11 Unlike the display apparatus DD described in connection with Figure 8 The display apparatus DD_3 according to embodiments can further include a black matrix layer BM, unlike the display apparatus DD described in connection with

[0148] For example, the upper layer UL_3 can further include a black matrix layer BM disposed in the non-sub-pixel area NSPA. The black matrix layer BM can be disposed between the upper substrate UPL and the fill layer FIL. The black matrix layer BM can include a black matrix material (e.g., carbon black, etc.). The black matrix layer BM can be formed in the non-sub-pixel area NSPA such that the pixels PXL can be more clearly distinguished from each other, thereby improving the visibility of the display device DD_3.

[0149] Referring to Figure 12 Unlike the display device DD described in connection with Figure 8 The display device DD_4 according to embodiments can further include a low reflection layer LRL, unlike the display device DD described in connection with

[0150] For example, the low reflection layer LRL can be a functional layer formed as part of the upper layer UL_4 for reducing reflection of external light in the display device DD_4 and / or reflection of external light from the display device DD_4. For example, the low reflection layer LRL can be an anti-reflection layer. The material of the low reflection layer LRL is not limited to any particular material as long as the low reflection layer LRL can function as an anti-reflection layer. Thus, by forming the low reflection layer LRL, the risk of reduced visibility due to reflection of external light in the display device DD_4 or reflection of external light from the display device DD_4 can be reduced.

[0151] Referring to Figure 13 Unlike the display device DD_4 described in connection with Figure 12 In the display device DD_5 according to embodiments, the low reflection layer LRL can be disposed below the upper substrate UPL in the upper layer UL_5, unlike the display device DD_4 described in connection with

[0152] For example, the low reflection layer LRL can be disposed between the upper substrate UPL and the fill layer FIL. Thus, by forming the low reflection layer LRL, the risk of reduced visibility due to reflection of external light in the display device DD_5 or reflection of external light from the display device DD_5 can be reduced.

[0153] Referring to Figure 14 Unlike the display device DD described in connection with Figure 8 The display device DD_6 according to embodiments can further include an optical layer OPL formed in association with the light control layer LCL_6, unlike the display device DD described in connection with

[0154] For example, the optical layer OPL can be a relatively low refractive index layer. The optical layer OPL can have a lower refractive index than the scattering layer SCL. The optical layer OPL and the scattering layer SCL can form a light recycling structure. For example, light propagating from the scattering layer SCL having an incident angle with the optical layer OPL that is greater than the critical angle can be reflected from the optical layer OPL and re-introduced into the scattering layer SCL, the light can then interact with scattering particles in the scattering layer SCL and re-enter the optical layer OPL. At some points, the re-entered light can propagate through the optical layer OPL and can be output from the display device DD_6. This can improve the light emission efficiency of the display device DD_6. The optical layer OPL can include various materials and can have any suitable refractive index. For example, the optical layer OPL can include various resins and hollow silica. In some implementations, the optical layer OPL can include zirconium oxide (ZrO x ), where "x" is a positive integer. However, embodiments are not limited to the above materials. According to embodiments, at least because the optical layer OPL can be formed as part of the display device DD_6, the light output efficiency and viewing angle characteristics of the display device DD_6 can be improved.

[0155] Referring to Figure 15 Unlike the display device DD described in connection with Figure 8 In the display device DD_7 according to embodiments, at least some of the color filters CF of the light control layer LCL_7 can overlap each other in a plan view, e.g., at least some of the color filters CF can overlap each other in, e.g., the third direction DR3.

[0156] For example, a portion of at least one of the color filters CF can be disposed on another one of the color filters CF. For example, the second color filter CF2_7 can include a protruding color filter portion CF_P, and the protruding color filter portion CF_P can overlap corresponding portions of the first color filter CF1 and the third color filter CF3 in a plan view, e.g., the protruding color filter portion CF_P of the second color filter CF2_7 can overlap corresponding portions of the first color filter CF1 and the third color filter CF3 in, e.g., the third direction DR3.

[0157] Referring to Figure 16 Unlike the display device DD described in connection with Figure 8 The display device DD_8 according to embodiments can further include a middle bank structure BNK_M forming part of the light control layer LCL_8.

[0158] According to embodiments, intermediate bank structures BNK M can be provided between the color filters CF. The intermediate bank structures BNK M can comprise the same material as the banks BNK and can protrude in the thickness direction of the base layer BSL (e.g., in the third direction DR3). Thus, the intermediate bank structures BNK M can further reduce the risk of color mixing between the color filters CF.

[0159] According to embodiments, in order to reduce the risk of reducing the aperture ratio of the display device DD_8, the intermediate bank structures BNK M can have a lower height in the third direction DR3 than the banks BNK. According to embodiments, the intermediate bank structures BNK M can have a thickness (or height) in the third direction DR3 that is thicker than the color filters CF. Thus, the risk of color mixing can be further prevented (or at least mitigated) while also minimizing (or at least reducing) the reduction of the aperture ratio of the display device DD_8.

[0160] Reference is made to Figure 17 Unlike the display device DD_8 described in connection with Figure 16 In the display device DD_9 according to embodiments, the intermediate bank structures BNK M_9 of the light control layer LCL_9 can have a thickness (or height) in the third direction DR3 that is smaller than the respective thickness (or height) of the color filters CF in the third direction DR3.

[0161] For example, the upper surface of the intermediate bank structures BNK M_9 can be covered (e.g., fully covered) by the color filters CF. The risk of color mixing between the sub-pixels SPX can be reduced by the intermediate bank structures BNK M_9 and also the risk of reducing the aperture ratio of the display device DD_9 can be prevented or at least mitigated.

[0162] Reference will now be made to Figures 18 to 27 One or more display devices according to various embodiments will be described. Content that overlaps with the above will be briefly explained or omitted.

[0163] Figures 18 to 27 The display device shown in the middle can differ from one or more of the previously described display devices in that it comprises Figures 18 to 27 One or more of the display devices described in connection with

[0164] Figures 18 to 20 is a plan view schematically illustrating one or more display devices according to some embodiments. Figure 18 and Figure 19 Pixels PXL_2 and PXL_3 are shown and the arrangement of different sub-pixels SPX of the pixels PXL_2 and PXL_3 is schematically illustrated. Figure 20An arrangement in which the pixels PXL_2 are arranged in one or more directions (e.g., in both the first direction DR1 and the second direction DR2) is schematically illustrated.

[0165] Figures 21 to 27 is a cross-sectional view schematically illustrating one or more display devices according to some embodiments. Figures 21 to 27 A first sub-pixel SPX1 to a third sub-pixel SPX3 according to some embodiments are schematically illustrated.

[0166] Referring to Figures 18 to 20 , the display device can further include an intermediate bank, such as the intermediate bank BNK_O or BNK_O_1. For convenience, unless a specific intermediate bank is specifically mentioned, the intermediate banks BNK_O and BNK_O_1 will be referred to as the intermediate bank BNK_O hereinafter.

[0167] The intermediate bank BNK_O can be disposed between adjacent sub-pixel areas SPXA. For example, the intermediate bank BNK_O can be disposed between the first sub-pixel area SPXA1 and the second sub-pixel area SPXA2. As Figure 18 The intermediate bank BNK_O can extend longitudinally in the second direction DR2 as illustrated. Figure 19 The intermediate bank BNK_O_1 depicted in FIG. 10A can extend longitudinally in the first direction DR1. The intermediate bank BNK_O can be formed in the same process as the bank BNK and can include the same material as the bank BNK, but embodiments are not limited to such configurations.

[0168] The intermediate bank BNK_O can form an opening associated with the bank BNK in which the color conversion layer CCL is disposed. For example, the color conversion layer CCL can be disposed in the first sub-pixel area SPXA1. The intermediate bank BNK_O and the bank BNK can surround an area, thereby forming an area in which the color conversion layer CCL is disposed in the first sub-pixel area SPXA1, but embodiments are not limited to such configurations. For example, the color conversion layer CCL can be additionally or alternatively disposed in association with at least one of the other sub-pixel areas SPXA.

[0169] Referring to Figure 21 , the display device DD_10 (e.g., the light control layer LCL_10 of the display device DD_10) can further include a color conversion layer CCL disposed in the first sub-pixel area SPXA1.

[0170] The color conversion layer CCL can be provided in the first sub-pixel area SPXA1 and can not be provided in the second sub-pixel area SPXA2 and the third sub-pixel area SPXA3. However, embodiments are not limited to the foregoing arrangement. For example, the color conversion layer CCL can be provided in the first sub-pixel area SPXA1 and a color conversion layer including quantum dots can be provided in the second sub-pixel area SPXA2. Hereinafter, an embodiment in which the color conversion layer CCL is provided only in the first sub-pixel area SPXA1 will be described as an example for convenience of description.

[0171] According to embodiments, the intermediate bank BNK_O can be formed in the non-sub-pixel area NSPA between the first sub-pixel area SPXA1 and the second sub-pixel area SPXA2. The intermediate bank BNK_O can have a smaller thickness (e.g., a smaller height) than the bank BNK in, for example, the third direction DR3.

[0172] The color conversion layer CCL can be provided on the display layer DL (e.g., the encapsulation layer TFE). The color conversion layer CCL can be provided in an area surrounded by the bank BNK and the intermediate bank BNK_O. The color conversion layer CCL can overlap the first color filter CF1_10 in a plan view (e.g., in a direction perpendicular to the upper surface of the base layer BSL). The color conversion layer CCL can be provided between the first color filter CF1_10 and the display layer DL. In some embodiments, a portion of the first color filter CF1_10 can overlap a corresponding portion of the color conversion layer CCL in, for example, the third direction DR3.

[0173] The color conversion layer CCL can be configured to change the color of light provided from the light emitting element LD. For example, the first light emitting element LD1 can emit light of a third color like the third light emitting element LD3, and the color conversion layer CCL can include color conversion particles that convert light of the third color to light of a first color. For example, the color conversion particles can be quantum dots, but any other suitable color conversion particles and / or materials can be used. The color conversion particles can absorb light of the third color and shift the wavelength according to an energy transition to emit light of the first color. The color conversion particles can be prepared by dispersing them in a matrix layer made of an organic material or the like.

[0174] According to embodiments, in a case where a layer similar to the color conversion layer CCL is formed in the second sub-pixel region SPXA2, the second light emitting element LD2 can emit light of a third color like the third light emitting element LD3, and the color conversion layer formed in the second sub-pixel region SPXA2 can include color conversion particles that convert light of the third color into light of a second color. For example, the color conversion particles can absorb light of the third color, and according to an energy transition shift wavelength to emit light of the second color. The color conversion particles can be prepared by dispersing them in a matrix layer made of an organic material or the like.

[0175] Similarly to the above-described embodiments, the scattering layer SCL can be disposed across the sub-pixel region SPXA, and can similarly provide or achieve the above-described technical effects.

[0176] Reference Figure 22 Unlike the display device DD_10 described in connection with Figure 21 The display device DD_11 according to embodiments can further include an optical layer OPL as part of the light control layer LCL_11, unlike the display device DD_10 described in connection with

[0177] According to embodiments, the optical layer OPL can be disposed between the color conversion layer CCL and the first color filter CF1_10 in the first sub-pixel region SPXA1. The optical layer OPL can be disposed between the scattering layer SCL_11 and both the second color filter CF2 and the third color filter CF3.

[0178] Technical features of the optical layer OPL have been described previously in connection with Figure 14 For example, the optical layer OPL can form a light recycling structure. Accordingly, light output efficiency and viewing angle characteristics of the display device DD_11 can be improved.

[0179] Reference Figure 23 Unlike the display device DD_10 described in connection with Figure 21 In the display device DD_12 according to embodiments, the scattering layer SCL_12 of the light control layer LCL_12 can not be disposed in the first sub-pixel region SPXA1, but can be disposed across the second sub-pixel region SPXA2 and the third sub-pixel region SPXA3, unlike the display device DD_10 described in connection with

[0180] For example, the scattering layer SCL_12 can include a first portion disposed in the second sub-pixel area SPXA2 and a second portion disposed in the third sub-pixel area SPXA3, and can not overlap the first sub-pixel area SPXA1 in a plan view, e.g., can not overlap the first sub-pixel area SPXA1 in the third direction DR3. Further, the first color filter CF1 can be protected by the upper capping layer CPL_Q. In some implementations, a thickness (or height) of the intermediate bank BNK_O_12 in the third direction DR3 can be greater than at least the respective thickness (or height) of the intermediate bank BNK_O described in connection with Figure 21 For example, unlike the different described in connection with Figure 21 the first color filter CF1_10 overlaps a portion of the intermediate bank BNK_O in the third direction DR3, the thickness of the intermediate bank BNK_O_12 can be such that the first color filter CF1 does not overlap a portion of the intermediate bank BNK_O_12 in the third direction DR3. In some cases, a portion of the upper capping layer CPL_Q can be disposed on (e.g., directly on) a portion (e.g., an upper surface) of the intermediate bank BNK_O_12.

[0181] Referring to Figure 24 Unlike the display device DD_12 described in connection with Figure 23 In the display device DD_13 according to the embodiments, the various layers of the light control layer LCL_13 can be disposed on the upper substrate UPL, and both the upper capping layer CPL_Q and the fill layer FIL of the light control layer LCL_13 can be disposed between the color conversion layer CCL and the display layer DL of the light control layer LCL_13.

[0182] For example, the components making up the light control layer LCL_13 can be disposed in sequence on the upper substrate UPL. Thus, similar to previously described, the color filters CF (e.g., the second color filter CF2 and the third color filter CF3) can be disposed between the scattering layer SCL_12 and the display layer DL (e.g., the light emitting elements LD of the display layer DL), and the scattering layer SCL_12 can be disposed across two or more sub-pixel areas SPXA (e.g., the second sub-pixel area SPXA2 and the third sub-pixel area SPXA3).

[0183] In some implementations, a surface (e.g., an upper surface) of the intermediate bank BNK_O_13 can be coplanar with a respective surface of at least one of the first color filter CF1 and the scattering layer SCL_12. As Figure 24 As shown in the middle, the upper surface of the intermediate bank BNK_O_13 is coplanar with respective surfaces of both the first color filter CF1 and the scattering layer SCL_12.

[0184] Referring toFigure 25 In conjunction with Figure 23 Unlike the display apparatus DD_12 described, the display apparatus DD_14 according to embodiments can further comprise an intermediate bank structure BNK_M as part of the light control layer LCL_14.

[0185] According to embodiments, the intermediate bank structure BNK_M can be disposed between the second color filter CF2 and the third color filter CF3 in a direction transverse to the third direction DR3, for example. Thus, the intermediate bank structure BNK_M can further reduce the risk of color mixing between the color filters CF.

[0186] Referring to Figure 26 In conjunction with Figure 23 Unlike the display apparatus DD_12 described, in the display apparatus DD_15 according to embodiments, the first color filter CF1 can be disposed below the upper substrate UPL, such as directly below the upper substrate UPL. In this way, the first color filter CF1 can be formed as part of the upper layer UL_15. Further, a thickness (or height) of the color conversion layer CCL_15 in the third direction DR3 can be greater than the respective thickness (or height) of the color conversion layer CCL described in conjunction with Figure 23 In some implementations, the thickness of the color conversion layer CCL_15 in the third direction DR3 can be less than the respective thickness of the intermediate bank BNK_O_12 in the third direction DR3.

[0187] For example, the first color filter CF1 can be fabricated by patterning it on the upper substrate UPL as part of the upper layer UL_15. Thus, the first color filter CF1 can be disposed between the upper substrate UPL and the fill layer FIL_15. Similar to previously described, the sub-pixel area SPXA can be defined by the color filter CF or in association with the color filter CF.

[0188] Referring to Figure 27 In conjunction with Figure 26 Unlike the display apparatus DD_15 described, the display apparatus DD_16 according to embodiments can further comprise an optical layer OPL formed as part of the light control layer LCL_16. According to embodiments, the display apparatus DD_16 can further comprise an intermediate bank structure BNK_M, although Figure 27 is not shown in the middle.

[0189] According to embodiments, the optical layer OPL can be disposed on the color conversion layer CCL_16, and the optical layer OPL can be disposed on the scattering layer SCL_12. In some cases, a thickness (or height) of the color conversion layer CCL_16 in the third direction DR3 can be less than the thickness (or height) of the color conversion layer CCL_15 (see Figure 26) a respective thickness (or height) in the third direction DR3, but greater than the color conversion layer CCL (see, for example, Figure 23 ) a respective thickness (or height) in the third direction DR3. The technical features of the optical layer OPL have been described previously with reference to Figure 14 , for example. The optical layer OPL can form a light recycling structure, for example. Accordingly, light output efficiency and viewing angle characteristics of the display device DD_16 can be improved.

[0190] The display device DD according to the embodiments can be applied to various types of electronic devices. In the embodiments, the electronic device includes the above-described display device DD, and can further include other modules or devices having additional functions, in addition to the display device DD.

[0191] Figure 28 is a block diagram of an electronic device according to an embodiment. Referring to Figure 28 , the electronic device 10 can include a display module 11, a processor 12, a memory 13, and a power module 14.

[0192] The processor 12 can 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.

[0193] The memory 13 can store data and / or information for operating 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.

[0194] The power module 14 can include a power supply module such as a power adapter or a battery device, and a power conversion module. The power conversion module converts a power source provided by the power supply module and generates a power source to operate the electronic device 10.

[0195] At least one of the above-described components of the electronic device 10 can be included in the display device DD according to the embodiments as described above. Furthermore, some of the separate modules included in one module in terms of functions can be included in the display device DD, and others can be disposed separately from the display device DD. For example, the display module 11 is included in the display device DD, while the processor 12, the memory 13, and the power module 14 are not included in the display device DD, but are separately disposed in the electronic device 10.

[0196] Figure 29 Schematic diagrams illustrating various embodiments of an electronic device are shown.

[0197] Referring to Figure 29, various types of electronic devices to which the embodiment of the display device DD is applied can include: electronic devices for displaying images such as a smartphone 10_1a, a tablet PC 10_1b, a laptop computer 10_1c, a television (TV) 10_1d, and a desktop display 10_1e; wearable electronic devices including a display module such as smart glasses 10_2a, a head-mounted display (HMD) 10_2b, and a smart watch 10_2c; and automotive electronic devices 10_3 including a display module such as a center information display (CID) disposed at an instrument cluster, a center console, and a dashboard of a vehicle, and an interior mirror display.

[0198] According to some embodiments, it is possible to provide a display device having a relatively high resolution display quality and an electronic device including the display device by improving an aperture ratio corresponding to a region of output light.

[0199] According to some embodiments, it is possible to provide a display device in which a risk of color mixing between sub-pixels is reduced and an electronic device including the display device.

[0200] According to some embodiments, it is possible to provide a display device having improved convenience in process design for manufacturing a pixel and an electronic device including the display device.

[0201] Although the foregoing embodiments have been described in detail for clear understanding of the present disclosure, it will be obvious that certain changes and modifications can be practiced within the scope of the appended claims. It should be noted that there are many alternative ways of implementing the processes, systems, and apparatuses disclosed. Therefore, the embodiments should be considered in all respects as illustrative and not restrictive, and the embodiments are not limited to the details given herein.

Claims

1. A display device, characterized by comprising: comprises: a display layer; and a light control layer disposed on a surface of the display layer, the light control layer comprising a color filter and a scattering layer, wherein the color filter is disposed between the scattering layer and the display layer in a direction perpendicular to the surface of the display layer.

2. The display device according to claim 1, wherein Further comprising: a first sub-pixel configured to emit light of a first color; a second sub-pixel configured to emit light of a second color; and a third sub-pixel configured to emit light of a third color, wherein the scattering layer overlaps each of the first sub-pixel, the second sub-pixel, and the third sub-pixel in the direction. Further comprising:

3. The display device according to claim 2, wherein a bank surrounding an area in a view in the direction, wherein each of the first sub-pixel, the second sub-pixel, and the third sub-pixel forms a corresponding sub-pixel of a pixel, the display device comprises a plurality of pixels, and the pixel is one of the plurality of pixels, the color filter comprises a first color filter overlapping the first sub-pixel in the direction, a second color filter overlapping the second sub-pixel in the direction, and a third color filter overlapping the third sub-pixel in the direction; the plurality of pixels are spaced apart from each other by the bank, and in the view in the direction: an outer boundary of the first color filter corresponds to an outer boundary of the first sub-pixel; an outer boundary of the second color filter corresponds to an outer boundary of the second sub-pixel; and an outer boundary of the third color filter corresponds to an outer boundary of the third sub-pixel, both the scattering layer and the color filter directly contact a side surface of the bank.

4. The display device according to claim 3, wherein: the scattering layer is one of titanium oxide, silicon dioxide, zirconium oxide, aluminum oxide, indium oxide, zinc oxide, tin oxide, and antimony oxide, the silicon dioxide is one of silicon dioxide beads and hollow silicon dioxide, the display layer comprises a light emitting element layer, and the light emitting element layer comprises a first light emitting element layer configured to emit light of the first color, a second light emitting element layer configured to emit light of the second color, and a third light emitting element layer configured to emit light of the third color. Further comprising:

5. The display device according to claim 2, wherein a filling layer disposed on the scattering layer; and an upper substrate disposed on the filling layer, wherein, in the direction, the filling layer is disposed between the upper substrate and the display layer. Further comprising: a filling layer disposed between the color filter and the display layer in the direction; and 6. The display device according to claim 2, wherein an upper substrate disposed on the scattering layer, wherein, in the direction, the scattering layer is disposed between the upper substrate and the display layer. the scattering layer comprises at least one filling material and scatterers dispersed in the at least one filling material. Further comprising: a non-sub-pixel area not overlapping any of the first sub-pixel, the second sub-pixel, and the third sub-pixel in the direction; and 7. The display device according to claim 2, wherein a black matrix layer, 8. The display device according to claim 3, wherein wherein the bank and the black matrix layer are disposed in the non-sub-pixel area. Further comprising: a low reflection layer disposed on the upper substrate, ​ ​ 9. The display device according to claim 5, wherein ​ ​ wherein the upper substrate is disposed between the low reflection layer and the display layer in the direction.

10. The display device according to claim 5, wherein Further comprising: a low reflection layer disposed between the upper substrate and the fill layer in the direction.

11. The display device according to claim 2, wherein Further comprising: an optical layer overlapping each of the first, second, and third sub-pixels in the direction, wherein a refractive index of the optical layer is lower than a refractive index of the scattering layer.

12. The display device according to claim 3, wherein Further comprising: an intermediate bank structure disposed between at least two of the first, second, and third sub-pixels in the view in the direction; wherein a height of the intermediate bank structure from the surface of the display layer in the direction is less than a height of the bank from the surface of the display layer in the direction, the intermediate bank structure includes a first surface facing the display layer and a second surface opposite the first surface, and the second surface of the intermediate bank structure is covered by the color filter.

13. The display device according to claim 3, wherein Further comprising: a color conversion layer disposed between the first color filter and the display layer in the direction; and an intermediate bank surrounding at least a portion of the color conversion layer in the view in the direction, the display device further comprises an optical layer disposed on the color filter, the optical layer having a refractive index less than a refractive index of the scattering layer; wherein, in the direction, a portion of the optical layer is disposed between the first color filter and the color conversion layer in an area where the optical layer overlaps the first sub-pixel in the direction.

14. The display device of claim 1, wherein Further comprising: a first sub-pixel configured to emit light of a first color; a second sub-pixel configured to emit light of a second color; a third sub-pixel configured to emit light of a third color; and a color conversion layer overlapping the first sub-pixel in the direction, wherein the color filter includes a first color filter overlapping the first sub-pixel in the direction, a second color filter overlapping the second sub-pixel in the direction, and a third color filter overlapping the third sub-pixel in the direction; the color conversion layer is disposed between the first color filter and the display layer in the direction, the scattering layer does not overlap the first sub-pixel in the direction, the scattering layer overlaps both the second sub-pixel and the third sub-pixel in the direction, respectively, the display device further comprises: a bank surrounding an area in a view in the direction; and an intermediate bank structure disposed between the second sub-pixel and the third sub-pixel in the view in the direction, wherein a height of the intermediate bank structure from the surface of the display layer in the direction is less than a height of the bank from the surface of the display layer in the direction.

15. The display device of claim 14, wherein, Further comprising: an upper layer disposed on the light control layer, the upper layer including a fill layer and an upper substrate on the fill layer, wherein the fill layer is disposed between the upper substrate and the display layer in the direction, the first color filter is disposed between the upper substrate and the fill layer in the direction, and the display device further comprises an optical layer, wherein at least a first portion of the optical layer is disposed on the color conversion layer, at least a second portion of the optical layer is disposed on the scattering layer, and the optical layer has a refractive index that is less than a refractive index of the scattering layer.

16. An electronic device, comprising: comprising: a processor configured to provide an image data signal; and a display device comprising a display module that receives the image data signal, wherein the display device comprises: a display layer; and a light control layer disposed on a surface of the display layer, the light control layer comprising a color filter and a scattering layer, wherein the color filter is disposed between the scattering layer and the display layer in a direction perpendicular to the surface of the display layer.

Images