Display device

Abstract

Disclosed is a display device including: a display layer including an effective area and a peripheral area, the effective area including a plurality of pixel areas, the peripheral area being adjacent to the effective area; an insulating layer disposed on the display layer, the insulating layer including at least one first opening overlapping the plurality of pixel areas and at least one second opening located in the peripheral area; a refractive index layer disposed on the insulating layer, the refractive index layer having a refractive index greater than that of the insulating layer and being spaced apart from the at least one second opening; and a polarizing layer disposed on the refractive index layer and overlapping the refractive index layer. At least a portion of the polarizing layer overlaps the at least one second opening.

Description

[0001] Cross-references to related applications

[0002] This application claims priority and benefit to Korean Patent Application No. 10-2020-0061700, filed on May 22, 2020, with the Korean Intellectual Property Office (KIPO), the contents of which are incorporated herein by reference in their entirety. Technical Field

[0003] This disclosure relates to a display device with improved reliability. Background Technology

[0004] The display device includes an effective area that is activated in response to an electrical signal. The display device senses input applied from the outside through the effective area and simultaneously displays various images to provide information to the user.

[0005] The light emitted by the light-emitting layer of a display device is emitted not only in the front direction but also in the side direction. The luminous efficiency is determined based on the light emitted in the front direction. Therefore, the light emitted in the side direction results in a decrease in luminous efficiency. Summary of the Invention

[0006] This disclosure provides a display device with improved reliability.

[0007] In one aspect, an embodiment provides a display device comprising: a display layer including an effective region and a peripheral region, the effective region including a plurality of pixel regions, and the peripheral region adjacent to the effective region; an insulating layer disposed on the display layer, the insulating layer including at least one first opening overlapping the plurality of pixel regions and at least one second opening located in the peripheral region; a refractive index layer disposed on the insulating layer, the refractive index layer having a refractive index greater than that of the insulating layer and spaced apart from at least one second opening of the insulating layer; and a polarizing layer disposed on and overlapping the refractive index layer. At least a portion of the polarizing layer may overlap with at least one second opening of the insulating layer.

[0008] In an implementation, the refractive index layer may not overlap with at least one second opening.

[0009] In one embodiment, the polarizing layer may cover at least one second opening.

[0010] In some embodiments, the display device may further include a protective layer. The peripheral region may include a curved region, and the protective layer may be disposed in the curved region and spaced apart from the refractive index layer.

[0011] In one implementation, the protective layer may contact the polarizing layer.

[0012] In this embodiment, the insulating layer comprises an organic material.

[0013] In an implementation, in a planar view, the polarizing layer may have an area larger than that of the refractive index layer.

[0014] In an embodiment, at least one second opening in the insulating layer may include a first portion extending in a first direction and a second portion extending toward the edge of the display layer in a second direction intersecting the first direction.

[0015] In one embodiment, the ends of the refractive index layer and the ends of the polarizing layer may be spaced apart from each other, and at least one second opening is provided between the ends of the refractive index layer and the ends of the polarizing layer.

[0016] In one embodiment, at least one second opening in the insulating layer may extend in a first direction and be spaced apart from the edge of the display layer in a second direction intersecting the first direction.

[0017] In an embodiment, the display device may further include a first protrusion disposed in the peripheral region, surrounding at least a portion of the effective region and disposed below the refractive index layer.

[0018] In one embodiment, at least one second opening in the insulating layer may be disposed between the end of the polarizing layer and the first protrusion.

[0019] In one implementation, the refractive index layer may overlap with the first protrusion.

[0020] In one embodiment, the display device may further include a second protrusion disposed in the peripheral region, surrounding at least a portion of the effective region, and spaced apart from at least one second opening in the insulating layer. A first protrusion is disposed between the second protrusion and the at least one second opening.

[0021] In one embodiment, the insulating layer may include at least one third opening located between the first protrusion and the second protrusion.

[0022] In one implementation, the refractive index layer may overlap with at least one third opening.

[0023] In an implementation, at least one third opening may include a plurality of third openings, and in a plan view, the plurality of third openings are spaced apart from each other in a first direction.

[0024] At least one second opening includes a plurality of second openings, and the plurality of second openings are spaced apart from each other in a first direction and in a second direction intersecting the first direction.

[0025] In an embodiment, the display device may include: a display layer including an effective region, a first region, and a curved region, the effective region including a plurality of pixel regions, the first region being adjacent to the effective region, and the curved region being adjacent to the first region; a sensor layer disposed on the display layer, the sensor layer including a plurality of sensing electrodes and an insulating layer disposed on the plurality of sensing electrodes, the insulating layer including at least one first opening overlapping the plurality of pixel regions and at least one second opening overlapping the first region; a refractive index layer disposed on the insulating layer and spaced apart from the at least one second opening; and a protective layer spaced apart from the refractive index layer and overlapping the curved region.

[0026] In this embodiment, the refractive index layer has a larger refractive index than the insulating layer.

[0027] In an embodiment, the refractive index layer may not overlap with at least one second opening, and the protective layer may not overlap with at least one second opening.

[0028] In this embodiment, the insulating layer may include organic materials, and the refractive index layer may be directly disposed on the insulating layer.

[0029] In an implementation, the insulating layer may include a third opening located between at least one second opening and the effective area.

[0030] In one embodiment, the third opening is filled with a refractive index layer.

[0031] In an embodiment, at least one second opening includes a plurality of second openings, and the plurality of second openings are spaced apart from each other in a first direction and in a second direction intersecting the first direction.

[0032] In this embodiment, the region where the refractive index layer is disposed can be controlled (or adjusted) by forming a second opening through the insulating layer. The flatness of the upper surface of the refractive index layer (also called a high refractive index layer) can be controlled by the controlled region of the refractive index layer. The thickness of the protrusions formed in the refractive index layer can be reduced by the second opening, or the protrusions formed in the refractive index layer can be controlled to overlap with the peripheral region. The protrusions can be prevented from being observed from the outside of the display device. Therefore, a display device with improved reliability can be provided.

[0033] In this embodiment, the end of the refractive index layer can be positioned closer to the effective region than the second opening. The protective layer can be spaced apart from the effective region, and the second opening is inserted between the protective layer and the effective region. The second opening prevents the refractive index layer from contacting the protective layer. It also prevents the protective layer from separating due to interfacial adhesion between the refractive index layer and the protective layer. Therefore, a display device with improved reliability can be provided. Attached Figure Description

[0034] Further understanding of embodiments of the present invention will become more apparent from the detailed description of the embodiments with reference to the accompanying drawings, in which:

[0035] Figure 1 This is a schematic perspective view showing a display device according to an embodiment of the present disclosure;

[0036] Figure 2 This is a schematic exploded perspective view showing a display device according to an embodiment;

[0037] Figure 3 This is a schematic cross-sectional view of the display panel according to an embodiment;

[0038] Figure 4 This illustrates an embodiment. Figure 2 A schematic plan of area AA';

[0039] Figure 5 It is along Figure 4 A schematic cross-sectional view taken by line I-I';

[0040] Figure 6 It is along Figure 4 A schematic cross-sectional view taken from line II-II';

[0041] Figure 7 This illustrates the relationship according to the implementation method. Figure 2 A schematic plan view of the area corresponding to region AA';

[0042] Figure 8 It is along Figure 7 A schematic cross-sectional view taken from line III-III';

[0043] Figure 9 This illustrates the relationship according to the implementation method. Figure 2 A schematic plan view of the area corresponding to region AA';

[0044] Figure 10 It is along Figure 9 A schematic cross-sectional view taken from line IV-IV';

[0045] Figure 11 This illustrates an embodiment. Figure 2 A schematic plan of area BB'; and

[0046] Figure 12 This illustrates the relationship according to the implementation method. Figure 2 A schematic plan view of the area corresponding to region BB'. Detailed Implementation

[0047] Because this disclosure can be implemented in various ways, preferred embodiments are shown in the accompanying drawings and described in the detailed description of the invention. However, this does not limit this disclosure to the specific embodiments, and it should be understood that this disclosure covers all modifications, equivalents, and substitutions within the spirit and scope of the invention.

[0048] In this disclosure, it should be understood that when an element or layer is referred to as being "on," "connected to," or "attached to" another element or layer, it may be directly on, connected to, or attached to that other element or layer, or there may be intervening elements or layers. It should also be understood that when an element or layer is "in direct contact" with another element or layer, there are no other intervening layers or elements. For example, if a layer is "directly disposed" on another layer, then that layer may be disposed on that other layer without using additional components such as adhesive members.

[0049] The same reference numerals always denote the same elements. In the accompanying drawings, the thickness, proportions, and dimensions of parts may be exaggerated in order to effectively describe the technical content.

[0050] As used herein, the term “and / or” includes any and all combinations of one or more of the relevant listed items. For example, “A and / or B” can be understood to mean “A, B, or A and B”.

[0051] It should be understood that although the terms “first,” “second,” etc., may be used herein to describe various elements, components, regions, layers, and / or sections, these elements, components, regions, layers, and / or sections should not be limited by these terms. These terms are used only to distinguish one element, component, region, layer, or section from another. Therefore, without departing from the scope of the claims, the first element, first component, first region, first layer, or first section discussed below may be referred to as a second element, second component, second region, second layer, or second section. The singular forms “a,” “an,” and “the” are intended to also include the plural forms, unless the context clearly indicates otherwise.

[0052] In this document, spatial relative terms such as “below,” “under,” “lower,” “above,” and “upper” may be used to describe the relationship between one element or feature and another element(s) shown in the accompanying drawings.

[0053] Unless otherwise defined or implied herein, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure pertains. It should also be understood that terms such as those defined in common dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant art, and should not be interpreted in an idealized or overly formal sense unless clearly defined herein.

[0054] It should also be understood that, when used in this specification, the terms “include” and / or “including” specify the presence of the stated features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or groups thereof.

[0055] In the specification and claims, for purposes of meaning and interpretation, the phrase "at least one of..." is intended to include the meaning of "at least one selected from the group consisting of...". For example, "at least one of A and B" can be understood to mean "A, B, or A and B".

[0056] The embodiments will be explained in detail below with reference to the accompanying drawings.

[0057] Figure 1 This is a schematic perspective view showing a display device 1000 according to an embodiment.

[0058] refer to Figure 1 The display device 1000 may be a device activated in response to an electrical signal. For example, the display device 1000 may be a mobile phone, tablet computer, car navigation unit, gaming unit, or wearable unit; however, the implementation is not limited to these. Figure 1 A mobile phone is shown as a representative example of a display device 1000.

[0059] Display device 1000 may include an active area 1000A and a peripheral area 1000NA.

[0060] The effective area 1000A can be an area through which an image IM is displayed. The effective area 1000A may include a surface defined by a first direction DR1 and a second direction DR2 (or parallel to the first direction DR1 and the second direction DR2). The effective area 1000A may also include curved surfaces that bend and / or extend from at least two sides of the plane, respectively. However, the shape of the effective area 1000A is not limited thereto. For example, the effective area 1000A may consist of only a surface, or it may also include two or more curved surfaces, for example, four curved surfaces that bend and / or extend from four sides of the plane, respectively.

[0061] The peripheral region 1000NA may be adjacent to the effective region 1000A. The peripheral region 1000NA may surround the effective region 1000A. However, this is merely exemplary, and the shapes of the effective region 1000A and the peripheral region 1000NA may be designed relative to each other.

[0062] Although the first direction axis DR1, the second direction axis DR2, and the third direction axis DR3 are shown in the accompanying drawings, the directions indicated by the first direction axis DR1, the second direction axis DR2, and the third direction axis DR3 are relative directions and can be interchanged. The directions indicated by the first direction axis DR1, the second direction axis DR2, and the third direction axis DR3 can be referred to as the first direction, the second direction, and the third direction, and can be indicated by the same reference numerals (i.e., DR1, DR2, and DR3).

[0063] In this specification, the first direction axis DR1 and the second direction axis DR2 are perpendicular to each other, and the third direction axis DR3 is the normal direction relative to the plane defined by the first direction axis DR1 and the second direction axis DR2.

[0064] The third direction DR3 can indicate the thickness direction of the display device 1000. The third direction DR3 can intersect with the first direction DR1 and the second direction DR2. The front (or upper) surface and the rear (or lower) surface of each frame of the display device 1000 can be defined relative to the third direction DR3. The expression "when viewed in a plane" or "in a plan view" can be defined as the object being viewed on the third direction DR3.

[0065] Figure 2 This is a schematic exploded perspective view showing a display device 1000 according to an embodiment.

[0066] refer to Figure 2 The display device 1000 may include a window 1100, a display panel 1200, and a housing 1300. The window 1100 and the housing 1300 may be connected to each other to define the appearance of the display device 1000.

[0067] The display panel 1200 may include a display layer 100 and a sensor layer 200.

[0068] Display layer 100 can display image IM (reference) Figure 1The display layer 100 according to embodiments of this disclosure may be a light-emitting display layer. However, the embodiments are not limited thereto. For example, the display layer 100 may be an organic light-emitting display layer, a quantum dot display layer, a nano-LED display layer, or a micron-LED display layer. The light-emitting layer of an organic light-emitting display layer may include organic light-emitting materials. The light-emitting layer of a quantum dot display layer may include quantum dots or quantum rods. The light-emitting layers of nano-LED and micron-LED display layers may include small LED elements of several hundred micrometers or smaller. In the following, an organic light-emitting display layer will be described as a representative example of display layer 100.

[0069] Sensor layer 200 may be disposed on display layer 100. Sensor layer 200 can acquire coordinate information of inputs (e.g., external inputs). Sensor layer 200 can sense various external inputs. For example, sensor layer 200 can sense input from a user's body (e.g., a finger), or it can sense various forms of external input, such as light, heat, or pressure. In addition to sensing inputs that touch the sensing surface, sensor layer 200 can also sense inputs near the sensing surface.

[0070] The display layer 100 and the sensor layer 200 may define an effective area AA and a peripheral area NAA. The effective area AA can be the image IM displayed on it (see reference). Figure 1 It senses the area of ​​external input. The effective area AA can be compared with the effective area 1000A of the display device 1000 (reference). Figure 1 ) overlap. For example, the effective area AA may overlap with the effective area 1000A of the display device 1000 (reference). Figure 1 The image may overlap partially or entirely with the reference image IM within the valid region AA. Figure 1 Alternatively, external input can be provided on or through the valid area AA. However, this is merely exemplary. For example, an image IM (reference) is displayed on it. Figure 1 The area of ​​the display device 1000 and the area on which external input is sensed (or through which external input is sensed) can be separated from each other within the effective area 1000A of the display device 1000, and they should not be particularly limited thereto.

[0071] The peripheral area NAA can be compared with the peripheral area 1000NA of the display device 1000 (reference). Figure 1 (Overlap.) The peripheral area NAA can surround or be adjacent to the effective area AA. The peripheral area NAA can contain drive circuits or drive lines to drive the effective area AA, and various signal lines or pads can be provided in the peripheral area NAA to provide electrical signals to the effective area AA or electronic components.

[0072] The peripheral region NAA may include a first region NA1, a curved region BA, and a second region NA2 defined within the peripheral region NAA. The first region NA1 may surround the effective region AA. The second region NA2 may extend from the curved region BA in a direction opposite to the second direction DR2. The curved region BA may be disposed between the first region NA1 and the second region NA2. The curved region BA may be curved toward the rear surface of the display layer 100 such that the second region NA2 may face the first region NA1. A portion of the peripheral region NAA may be curved such that the peripheral region 1000NA of the display device 1000 (see reference) Figure 1 The size can be reduced.

[0073] Window 1100 can be disposed on display panel 1200 and can cover or overlap with effective area AA. The edges of window 1100 can be curved. Window 1100 can include an optically transparent insulating material. For example, window 1100 can include glass or plastic material. Window 1100 can have a single-layer or multi-layer structure. As an example, window 1100 can include plastic films attached to each other by adhesive, or a glass substrate and a plastic film attached to the glass substrate by adhesive. Although not shown, a light-blocking layer can be disposed in the area of ​​window 1100 that overlaps with peripheral area 1000NA.

[0074] Window 1100 may include an effective area 1000A that defines the display device 1000 (reference) Figure 1 The front surface of the 1100A.

[0075] Although not shown, window 1100 may also include a functional coating. The functional coating may include an anti-fingerprint layer, an anti-reflective layer, and a hard coating.

[0076] The housing 1300 can be connected to the window 1100 to define the appearance of the display device 1000. Figure 2 In the illustration, a housing 1300 implemented by a single component is shown as a representative example. However, the implementation is not limited to this. For example, the housing 1300 may include two or more components assembled with each other.

[0077] Figure 3 This is a schematic cross-sectional view showing the display panel 1200 according to an embodiment.

[0078] refer to Figure 3 The display panel 1200 may include a display layer 100, a sensor layer 200, and a refractive index layer 300 (e.g., a high refractive index layer 300).

[0079] The display layer 100 may include a base layer 110, a circuit layer 120, a light-emitting element layer 130, and an encapsulation layer 140.

[0080] The base layer 110 may be a component providing a base surface on which the light-emitting layer is disposed. The base layer 110 may be a glass substrate, a metal substrate, or a polymer substrate. However, the embodiments are not limited to these. For example, the base layer 110 may be an inorganic layer, an organic layer, or a composite material layer.

[0081] The base layer 110 may have a multilayer structure. For example, the base layer 110 may have a three-layer structure comprising a synthetic resin layer, an adhesive layer, and a synthetic resin layer. The synthetic resin layer may include a polyimide-based resin. The synthetic resin layer may include at least one of acrylic acid-based resins, methacrylic acid-based resins, polyisoprene-based resins, ethylene-based resins, epoxy-based resins, urethane-based resins, cellulose-based resins, siloxane-based resins, polyamide-based resins, and dinoflagellated resins. In this disclosure, as used herein, the term "X-based resin" refers to a resin comprising a functional group including X.

[0082] Circuit layer 120 may be disposed on base layer 110. Circuit layer 120 may include insulating layers, semiconductor patterns, conductive patterns, and signal lines. The insulating layer, semiconductor layer, and conductive layer may be formed on base layer 110 by coating or deposition processes. Then, the insulating layer, semiconductor layer, and conductive layer may be selectively patterned by several photolithography processes. Semiconductor patterns, conductive patterns, and signal lines included in circuit layer 120 may be formed.

[0083] The light-emitting element layer 130 may be disposed on the circuit layer 120. The light-emitting element layer 130 may include a light-emitting element. For example, the light-emitting element layer 130 may include organic light-emitting materials, quantum dots, quantum rods, micron LEDs, or nano LEDs. The light-emitting element layer 130 may be referred to as the light-emitting layer 130.

[0084] The encapsulation layer 140 may be disposed on the light-emitting element layer 130. The encapsulation layer 140 may include a first inorganic layer, an organic layer, and a second inorganic layer stacked in sequence. However, the layers of the encapsulation layer 140 are not limited to this.

[0085] The inorganic layer protects the light-emitting element layer 130 from moisture and oxygen, while the organic layer protects the light-emitting element layer 130 from foreign substances (such as dust particles). The inorganic layer may include a silicon nitride layer, a silicon oxide nitride layer, a silicon oxide layer, a titanium oxide layer, or an aluminum oxide layer. The organic layer may include an acrylic-based organic layer. However, the implementation is not limited to these.

[0086] The sensor layer 200 can be disposed on the display layer 100. The sensor layer 200 can be formed on the display layer 100 through a continuous process. In this case, the sensor layer 200 can be directly disposed on the display layer 100. For example, no separate adhesive member may be provided between the sensor layer 200 and the display layer 100. However, this is merely exemplary, and the sensor layer 200 should not be limited thereto.

[0087] A high refractive index layer 300 may be disposed on the sensor layer 200. The high refractive index layer 300 may include at least one of an optical path control layer that changes the optical path and an anti-reflection layer that reduces the reflectivity of external light incident from the outside.

[0088] Figure 4 This illustrates an embodiment. Figure 2 A schematic plan of area AA'.

[0089] refer to Figure 4 The effective area AA can be defined as pixel areas PXA-R, PXA-B, and PXA-G. Pixel areas PXA-R, PXA-B, and PXA-G can include a first pixel area PXA-R, a second pixel area PXA-B, and a third pixel area PXA-G.

[0090] The first pixel region PXA-R, the second pixel region PXA-B, and the third pixel region PXA-G can have different sizes. The first pixel region PXA-R can have a first size, the second pixel region PXA-B can have a second size, and the third pixel region PXA-G can have a third size. The second size can be larger than the first size, and the first size can be larger than the third size.

[0091] The first pixel area PXA-R corresponds to the red pixels that produce red light. The second pixel area PXA-B corresponds to the blue pixels that produce blue light. The third pixel area PXA-G corresponds to the green pixels that produce green light.

[0092] The first pixel region PXA-R and the second pixel region PXA-B can be arranged alternately on the first direction DR1 and the second direction DR2. Multiple third pixel regions PXA-G can exist that can be arranged on the first direction DR1 and the second direction DR2.

[0093] exist Figure 4 In the middle, the first pixel region PXA-R, the second pixel region PXA-B, and the third pixel region PXA-G are... Pattern arrangement. However, the implementation is not limited to this. For example, the first pixel region PXA-R, the second pixel region PXA-B, and the third pixel region PXA-G can be arranged in a striped pattern. In the striped pattern, the first pixel region PXA-R, the second pixel region PXA-B, and the third pixel region PXA-G can be arranged alternately in the first direction DR1, and the same pixel regions can be arranged in the second direction DR2.

[0094] The sensing electrode layer 204 (hereinafter also referred to as the second sensing electrode layer 204) may have a mesh shape. The sensing electrode layer 204 may include a plurality of sensor openings 204-OPR, 204-OPB, and 204-OPG defined therethrough. Therefore, in a planar view, the sensing electrode layer 204 may not overlap with the first pixel region PXA-R, the second pixel region PXA-B, and the third pixel region PXA-G. For example, a first sensor opening 204-OPR may be defined in the region corresponding to the first pixel region PXA-R, a second sensor opening 204-OPB may be defined in the region corresponding to the second pixel region PXA-B, and a third sensor opening 204-OPG may be defined in the region corresponding to the third pixel region PXA-G.

[0095] The opening 205-OP can be defined between the first pixel region PXA-R and the first sensor opening 204-OPR, between the second pixel region PXA-B and the second sensor opening 204-OPB, and between the third pixel region PXA-G and the third sensor opening 204-OPG. The opening 205-OP can be referred to as the first opening 205-OP. The opening 205-OP will be described below.

[0096] Outer region NAA (reference) Figure 2 A sensor line 206 may be provided in the first region NA1. The sensor line 206 may be electrically connected to the sensing electrode layer 204. The sensor line 206 may transmit the input signal sensed by the sensing electrode layer 204.

[0097] Multiple sensor lines 206 can exist. Each of the sensor lines 206 can extend along a peripheral region NAA adjacent to the effective region AA (reference). Figure 2 The sensor lines 206 extend outwards and can extend in a direction opposite to the second direction DR2. The sensor lines 206 can be spaced apart from each other.

[0098] A plurality of protrusions 150 may be provided in the first region NA1. Each protrusion 150 may surround or be adjacent to at least a portion of the effective region AA. For example, in one embodiment, each of the protrusions 150 may completely surround the effective region AA. In another embodiment, each of the protrusions 150 may surround at least a portion of the effective region AA. Each of the protrusions 150 may have a closed curved shape. As another example, a portion of the protrusion 150 may have an open shape.

[0099] The protrusion 150 may include a first protrusion 151, a second protrusion 152, and a third protrusion 153. However, the number of protrusions 150 should not be limited to this. The number of protrusions 150 may be two, or it may be four or more.

[0100] The first protrusion 151 can be positioned furthest from the effective area AA among the protrusions 150. The first protrusion 151, the second protrusion 152, and the third protrusion 153 can be arranged sequentially in the direction toward the effective area AA. The protrusions 150 can be spaced apart from each other. The second protrusion 152 can surround at least a portion of the third protrusion 153. The first protrusion 151 can surround at least a portion of the second protrusion 152.

[0101] An organic opening VOP may be defined in the first region NA1. The organic opening VOP may be defined as being spaced apart from the second protrusion 152 in the second direction DR2, and the first protrusion 151 is inserted between the organic opening VOP and the second protrusion 152.

[0102] An organically open VOP may include a first organically open VOP1 and a second organically open VOP2. However, the number of organically open VOPs should not be limited to this. A single organically open VOP may exist, or three or more organically open VOPs may be provided.

[0103] The first organic opening VOP1 and the second organic opening VOP2 can be sequentially defined in a direction away from the effective region AA. The organic opening VOPs will be described below.

[0104] Figure 5 It is along Figure 4 A schematic cross-sectional view taken from line I-I'.

[0105] refer to Figure 5 At least one inorganic layer may be formed on the upper surface of the base layer 110. The inorganic layer may include at least one of aluminum oxide, titanium oxide, silicon oxide, silicon nitride, zirconium oxide, and hafnium oxide. The inorganic layer may be formed in multiple layers. The inorganic layer may form a barrier layer and / or a buffer layer. In an embodiment, the display layer 100 may include a buffer layer (BFL).

[0106] The buffer layer BFL can increase the bonding force between the base layer 110 and the semiconductor pattern. The buffer layer BFL may include a silicon oxide layer and a silicon nitride layer, and the silicon oxide layer and the silicon nitride layer may be stacked alternately on top of each other.

[0107] Semiconductor patterns can be disposed on the buffer layer BFL. The semiconductor pattern may include polycrystalline silicon. However, the implementation is not limited to this. The semiconductor pattern may also include amorphous silicon or metal oxide.

[0108] Figure 5 Only a portion of the semiconductor pattern is shown, and the semiconductor pattern can also be disposed in other areas. The semiconductor pattern can be arranged across pixels in a specific manner. Depending on whether the semiconductor pattern is doped, it can have different electrical properties. The semiconductor pattern can include doped and undoped regions. Doped regions can be doped with N-type or P-type dopant. A P-type transistor can include a doped region doped with P-type dopant, and an N-type transistor can include a doped region doped with N-type dopant.

[0109] Doped regions can have higher conductivity than undoped regions and can essentially be used as electrodes or signal lines. Undoped regions can essentially correspond to the active layer (or channel) of a transistor. In other words, one part of a semiconductor pattern can be the active layer of a transistor, another part of the semiconductor pattern can be the source or drain of a transistor, and yet another part of the semiconductor pattern can be a connecting electrode or a connecting signal line.

[0110] Each pixel can have an equivalent circuit consisting of seven transistors, a capacitor, and a light-emitting element, and the equivalent circuit can be modified in various ways. Figure 5 The image shows a transistor 100PC and a light-emitting element 100PE included in a pixel.

[0111] The source S1, active layer A1, and drain D1 of transistor 100PC can be formed from a semiconductor pattern. The source S1 and drain D1 can extend from the active layer A1 in opposite directions in the cross-section. Figure 5 A portion of the connection signal line SCL, formed by a semiconductor pattern, is shown. Although not shown in the figure, the connection signal line SCL may be electrically connected to the drain D1 of transistor 100PC in a plane or layer.

[0112] A first insulating layer 10 may be disposed on the buffer layer BFL. The first insulating layer 10 may overlap or cover the pixels and semiconductor patterns in a common manner. The first insulating layer 10 may be an inorganic layer and / or an organic layer, and may have a single-layer or multi-layer structure. The first insulating layer 10 may include at least one of aluminum oxide, titanium oxide, silicon oxide, silicon nitride, zirconium oxide, and hafnium oxide. In an embodiment, the first insulating layer 10 may be a single-layer silicon oxide layer. Not only the first insulating layer 10, but also the insulating layer of the circuit layer 120 described below may be an inorganic layer and / or an organic layer and may have a single-layer or multi-layer structure. The inorganic layer may include at least one of the above-described materials. However, the embodiments are not limited thereto.

[0113] The gate G1 of transistor 100PC can be disposed on the first insulating layer 10. The gate G1 can be part of a metal pattern. The gate G1 can overlap with the active layer A1. During the doping of the semiconductor pattern, the gate G1 can be used as a mask.

[0114] A second insulating layer 20 may be disposed on the first insulating layer 10, and the second insulating layer 20 may cover the gate G1 or overlap with the gate G1. The second insulating layer 20 may overlap with the pixel in a common manner. The second insulating layer 20 may be an inorganic layer and / or an organic layer, and may have a single-layer or multi-layer structure. In an embodiment, the second insulating layer 20 may be (or include) a single-layer silicon oxide layer.

[0115] A third insulating layer 30 may be disposed on the second insulating layer 20. In an embodiment, the third insulating layer 30 may be (or include) a single layer of silicon oxide.

[0116] A first connection electrode CNE1 may be disposed on the third insulating layer 30. The first connection electrode CNE1 can be electrically connected to the connection signal line SCL through a contact hole CNT-1 defined to pass through the first insulating layer 10, the second insulating layer 20 and the third insulating layer 30.

[0117] A fourth insulating layer 40 may be disposed on the third insulating layer 30. The fourth insulating layer 40 may be (or include) a single layer of silicon oxide. A fifth insulating layer 50 may be disposed on the fourth insulating layer 40. The fifth insulating layer 50 may be or include an organic layer.

[0118] A second connection electrode CNE2 may be disposed on the fifth insulating layer 50. The second connection electrode CNE2 can be electrically connected to the first connection electrode CNE1 through a contact hole CNT-2 defined to pass through the fourth insulating layer 40 and the fifth insulating layer 50.

[0119] A sixth insulating layer 60 may be disposed on the fifth insulating layer 50, and the sixth insulating layer 60 may cover the second connecting electrode CNE2 or overlap with the second connecting electrode CNE2. The sixth insulating layer 60 may be (or include) an organic layer.

[0120] The light-emitting element layer 130, including the light-emitting element 100PE, can be disposed on the circuit layer 120. The light-emitting element 100PE may include a first electrode AE, a light-emitting layer EL, and a second electrode CE.

[0121] The first electrode AE ​​can be disposed on the sixth insulating layer 60. The first electrode AE ​​can be electrically connected to the second connecting electrode CNE2 through a contact hole CNT-3 defined to pass through the sixth insulating layer 60.

[0122] A pixel defining layer 70 may be disposed on the sixth insulating layer 60, and the pixel defining layer 70 may overlap a portion of the first electrode AE. An opening 70-OP may be defined to extend through the pixel defining layer 70. At least a portion of the first electrode AE ​​may be exposed through the opening 70-OP of the pixel defining layer 70. In an embodiment, a light-emitting region PXA may be defined corresponding to the portion of the first electrode AE ​​exposed through or within the opening 70-OP. Figure 4 The pixel regions are PXA-R, PXA-B, and PXA-G. The non-emitting region NPXA can be adjacent to the emitting region PXA.

[0123] The light-emitting layer EL can be disposed on the first electrode AE. The light-emitting layer EL can be disposed in the opening 70-OP. For example, the light-emitting layer EL can be divided into multiple parts and formed in each of the pixels. In this case, each of the light-emitting layers EL can emit light having at least one of blue, red, and green. However, the implementation is not limited to this. For example, the light-emitting layer EL can be electrically connected to the pixel and can be disposed in a shared manner. In this case, the light-emitting layer EL can provide blue light or white light.

[0124] The second electrode CE can be disposed on the light-emitting layer EL. The second electrode CE can have an integral shape and can be disposed in a shared manner throughout the pixels.

[0125] Although not shown in the accompanying drawings, a hole control layer may be disposed between the first electrode AE ​​and the light-emitting layer EL. The hole control layer is shared within the light-emitting region PXA and the non-light-emitting region NPXA. The hole control layer may include a hole transport layer and may also include a hole injection layer. An electron control layer may be disposed between the light-emitting layer EL and the second electrode CE. The electron control layer may include an electron transport layer and may also include an electron injection layer. The hole control layer and the electron control layer may be sharedly formed in the pixel using an aperture mask.

[0126] An encapsulation layer 140 may be disposed on the light-emitting element layer 130. The encapsulation layer 140 can protect the light-emitting element layer 130 from moisture, oxygen and foreign substances such as dust particles.

[0127] The sensor layer 200 may include a base layer 201, a first sensing electrode layer 202, a sensing insulating layer 203, a second sensing electrode layer 204, and an insulating layer 205.

[0128] The base layer 201 may be an inorganic layer comprising one of silicon nitride, silicon oxide nitride, and silicon oxide. As another example, the base layer 201 may be an organic layer comprising an epoxy-based resin, an acrylic-based resin, or an imide-based resin. The base layer 201 may have a monolayer structure or a multilayer structure of layers stacked on a third-direction DR3.

[0129] The first sensing electrode layer 202 and the second sensing electrode layer 204 can be disposed on the base layer 201. The second sensing electrode layer 204 can be Figure 4 The sensing electrode layer 204.

[0130] Each of the first sensing electrode layer 202 and the second sensing electrode layer 204 may include a sensing electrode. The sensing electrode may have a single-layer structure or a multi-layer structure with layers stacked on the third-direction DR3.

[0131] A sensing electrode with a single-layer structure may include a metal layer or a transparent conductive layer. The metal layer may include molybdenum, silver, titanium, copper, aluminum, or alloys thereof. The transparent conductive layer may include transparent conductive oxides, such as indium tin oxide (ITO), indium zinc oxide (IZO), zinc oxide (ZnO), and indium zinc tin oxide (ITZO). The transparent conductive layer may also include conductive polymers, such as PEDOT, metal nanowires, and graphene.

[0132] A sensing electrode with a multilayer structure may include a metal layer. The metal layer may have a titanium / aluminum / titanium three-layer structure. A sensing electrode with a multilayer structure may include at least one metal layer and at least one transparent conductive layer.

[0133] The second sensing electrode layer 204 may have a thickness greater than that of the first sensing electrode layer 202. For example, the thickness of the second sensing electrode layer 204 may be approximately one and a half (1.5) times greater than that of the first sensing electrode layer 202. For example, the thickness of the first sensing electrode layer 202 may be approximately 1,950 angstroms, and the thickness of the second sensing electrode layer 204 may be approximately 3,100 angstroms. However, the implementation is not limited to this. In some implementations, the thicknesses of the first sensing electrode layer 202 and the second sensing electrode layer 204 may be equal to each other, or the thickness of the first sensing electrode layer 202 may be greater than that of the second sensing electrode layer 204.

[0134] At least one of the sensing insulating layers 203 and 205 may comprise an inorganic material. The inorganic material may comprise at least one of aluminum oxide, titanium oxide, silicon oxide, silicon nitride, zirconium oxide, and hafnium oxide.

[0135] At least one of the sensing insulating layers 203 and 205 may include an organic material. The organic material may include at least one of acrylic acid-based resins, methacrylic acid-based resins, polyisoprene-based resins, ethylene-based resins, epoxy-based resins, urethane-based resins, cellulose-based resins, siloxane-based resins, polyimide-based resins, polyamide-based resins, and dinoflagellated resins.

[0136] In one embodiment, the sensing insulating layer 203 may comprise an inorganic material, and the insulating layer 205 may comprise an organic material. The sensing insulating layer 203 may have a thickness of about 3,000 angstroms, and the insulating layer 205 may have a thickness in the range of about 17,500 angstroms to about 25,000 angstroms. However, the thicknesses of the sensing insulating layer 203 and the insulating layer 205 are not limited thereto.

[0137] The opening 205-OP can be defined as a portion passing through the insulating layer 205. The opening 205-OP can overlap with the light-emitting region PXA. The upper surface of the sensing insulating layer 203 can be exposed through the opening 205-OP.

[0138] The opening 205-OP can be formed during the formation of the insulating layer 205 by coating a material for the insulating layer 205 and patterning the material. Therefore, when the insulating layer 205 is formed using a photoresist material, the process for forming the opening 205-OP can be simplified. When the insulating layer 205 is formed using a material other than a photoresist material, the opening 205-OP is formed through a complex process of forming a separate photoresist layer on the insulating layer 205, exposing and developing the photoresist layer, etching the upper surface of the material for the insulating layer 205, and removing the photoresist layer. In this embodiment, since the insulating layer 205 is formed using a photoresist material, the insulating layer 205 can be formed through a simplified process of coating the photoresist material, exposing the photoresist material, and developing the photoresist material, wherein the opening 205-OP is defined to extend through the insulating layer 205. Exemplary photoresist materials used to form the insulating layer 205 may include acrylates. However, the embodiments are not limited thereto.

[0139] A high refractive index layer 300 may be disposed on the insulating layer 205 and may be disposed in an opening 205-OP defined to pass through the insulating layer 205. The high refractive index layer 300 may provide a flat upper surface. The high refractive index layer 300 may be formed by an inkjet printing method or a screen printing method. The high refractive index layer 300 may include at least one of zirconium oxide particles, aluminum oxide particles, titanium oxide particles, and siloxanes. However, this is merely exemplary, and the materials used for the high refractive index layer 300 are not limited thereto.

[0140] The high refractive index layer 300 can have a first refractive index that is larger than the second refractive index of the insulating layer 205. The first refractive index of the high refractive index layer 300 can be in the range of about 1.65 to about 1.75. For example, the first refractive index can be about 1.7. The second refractive index of the insulating layer 205 can be in the range of about 1.45 to about 1.55. For example, the second refractive index can be about 1.53. Light provided from the light-emitting layer EL can be emitted not only in the front direction (e.g., third third direction DR3) but also in the lateral direction. The light efficiency can be determined based on the light LT0 emitted in the front direction. In the embodiment, due to the refractive index difference between the side surface of the defining opening 205-OP of the insulating layer 205 and the high refractive index layer 300, the light LT1 emitted in the lateral direction can be refracted or totally internally reflected. Therefore, the path of light can be changed in the direction of the third third direction DR3 or closer to the third third direction DR3. As a result, the display device 1000 (reference) can be improved. Figure 1 ) light efficiency.

[0141] Figure 6 It is along Figure 4 A schematic cross-sectional view taken from line II-II'. Figure 6 In the figures, the same reference numerals indicate Figure 5 The same elements are used in the same way, and therefore, detailed descriptions of the same elements will be omitted.

[0142] refer to Figure 6 The display panel 1200 may include a polarizing layer 400 and a protective layer 500.

[0143] The encapsulation layer 140 may include a first inorganic layer 141, an organic layer 142, and a second inorganic layer 143.

[0144] The first protrusion 151, the second protrusion 152, and the third protrusion 153 can be disposed below the high refractive index layer 300. The first protrusion 151, the second protrusion 152, and the third protrusion 153 can be disposed spaced apart from each other. The first protrusion 151 can be referred to as the first dam. The second protrusion 152 can be referred to as the second dam. The third protrusion 153 can be referred to as the third dam.

[0145] When organic monomers are printed to form organic layer 142, the first protrusion 151, the second protrusion 152 and the third protrusion 153 can prevent organic monomers from overflowing.

[0146] Each of the first protrusion 151, the second protrusion 152, and the third protrusion 153 may have a multi-layered stacked structure. For example, the first protrusion 151 may include a first protrusion portion 151a, a second protrusion portion 151b stacked on the first protrusion portion 151a, and a third protrusion portion 151c stacked on the second protrusion portion 151b. The second protrusion 152 may include a first protrusion portion 152a and a second protrusion portion 152b stacked on the first protrusion portion 152a. The third protrusion 153 may include a first protrusion portion 153a and a second protrusion portion 153b stacked on the first protrusion portion 153a.

[0147] First protrusion 151a and fifth insulating layer 50 (reference) Figure 5 The first protrusion 151a may include substantially the same material and may be formed by substantially the same process.

[0148] First protrusion 152a, first protrusion 153a, second protrusion 151b and sixth insulating layer 60 (reference) Figure 5 They can include substantially the same materials and can be formed by substantially the same process.

[0149] Second protrusion 152b, second protrusion 153b, third protrusion 151c and pixel limiting layer 70 (reference) Figure 5 They can include substantially the same materials and can be formed by substantially the same process.

[0150] Insulating layer 205 can be disposed on display layer 100 (reference) Figure 5 The first organic opening VOP1 and the second organic opening VOP2 can be defined in the peripheral region NAA of the insulating layer 205. The first organic opening VOP1 can be referred to as the second opening VOP1.

[0151] The first organic opening VOP1 can be defined between the end 400E of the polarization layer 400 and the first protrusion 151.

[0152] The second organic opening VOP2 may be defined above the protrusion 160. The protrusion 160 may include a first protrusion portion 160a, a second protrusion portion 160b stacked on the first protrusion portion 160a, and a third protrusion portion 160c stacked on the second protrusion portion 160b.

[0153] The first protrusion 160a and the fifth insulating layer 50 (reference) Figure 5The first protrusion 160a and the first protrusion 151a may comprise substantially the same material and may be formed by substantially the same process. The first protrusion 160a may comprise an organic material. The first protrusion 160a and the first protrusion 151a may comprise substantially the same material.

[0154] The second protrusion 160b and the sixth insulating layer 60 (reference) Figure 5 The second protrusion 160b and the second protrusion 151b may comprise substantially the same material and may be formed by substantially the same process.

[0155] The third protrusion 160c and the pixel-limiting layer 70 (reference) Figure 5 The third protrusion 160c and the third protrusion 151c may comprise substantially the same material and may be formed by substantially the same process.

[0156] A high refractive index layer 300 may be disposed on the insulating layer 205 and may be spaced apart from the first organic opening VOP1. The high refractive index layer 300 may not overlap with the first organic opening VOP1. The high refractive index layer 300 may overlap with the first protrusion 151.

[0157] The high refractive index layer 300 may have the property of readily spreading in organic materials and preventing migration to inorganic materials at the boundary between organic and inorganic materials. For example, when forming the high refractive index layer 300, the insulating layer 205 may include an organic material, and the sensing insulating layer 203 may include an inorganic material. A first organic opening VOP1 and a second organic opening VOP2 may be formed to extend through the insulating layer 205. The high refractive index layer 300 may then be formed on the insulating layer 205. The high refractive index layer 300 may spread in the insulating layer 205, which includes organic materials, and may stop at a region adjacent to the first organic opening VOP1, where the sensing insulating layer 203, which includes inorganic materials, is exposed through the first organic opening VOP1 (or within the first organic opening VOP1). The high refractive index layer 300 may then be compressed and cured by a curing process to form an end 300E on the first protrusion 151. However, this is merely exemplary. For example, the end 300E of the high refractive index layer 300 may be formed between the first protrusion 151 and the first organic opening VOP1.

[0158] When the high refractive index layer 300 is cured, it is necessary to prevent the light-emitting layer EL (refer to) located below the high refractive index layer 300 from being exposed. Figure 5 The light-emitting layer EL (reference layer) is damaged. For example, when forming the high refractive index layer 300, it is desirable to use a material that does not require a high-temperature thermosetting process. This is because if a high-temperature thermosetting process is performed, the light-emitting layer EL (reference layer) already formed and disposed below the high refractive index layer 300 will be damaged. Figure 5 The insulating layer 205 and the high refractive index layer 300 may be damaged. Therefore, the materials used for the insulating layer 205 and the high refractive index layer 300 can be thermally cured at low temperatures without damaging the underlying light-emitting layer EL (refer to...). Figure 5 Alternatively, it can be cured by ultraviolet light (UV curing) without affecting the EL layer located below.

[0159] In the region adjacent to the boundary between the peripheral region NAA and the effective region AA of the high refractive index layer 300, a protrusion PTA protruding on the third-direction DR3 can be formed. Figure 6 A protruding PTA overlapping the effective region AA is shown. However, the location of the protruding PTA is not limited to this. For example, the protruding PTA may overlap with the peripheral region NAA. In this case, window 1100 (reference) is set in the peripheral region NAA. Figure 2 The light-blocking layer can allow the protruding PTA to escape from the display device 1000 (reference). Figure 2 The protrusion PTA is not visible from the outside. The protrusion PTA may be a portion that is unavoidably formed during the formation of the high refractive index layer 300. The protrusion PTA may be formed spaced apart from the end 300E. If the thickness of the protrusion PTA exceeds a predetermined thickness, the protrusion PTA can be observed from the outside. However, in an embodiment, the end 300E of the high refractive index layer 300 can be controlled by a first organic opening VOP1. For example, the area where the high refractive index layer 300 is disposed can be controlled by the first organic opening VOP1. The flatness of the upper surface of the high refractive index layer 300 can be controlled by the controlled area of ​​the high refractive index layer 300. The first organic opening VOP1 can reduce the protrusion degree of the protrusion PTA. For example, the first organic opening VOP1 can reduce the thickness of the protrusion PTA, or it can control the overlap between the protrusion PTA and the peripheral region NAA. Therefore, it is possible to prevent the protrusion from being seen from the display device 1000 (reference). Figure 1 Externally, a protruding PTA was observed. As a result, a display device 1000 (reference) can be provided with improved reliability. Figure 1 ).

[0160] A polarizing layer 400 may be disposed between window 1100 and high refractive index layer 300. The polarizing layer 400 may include a polarizer and a retarder. The polarizer and retarder may include a stretched synthetic resin film or a coated synthetic resin film. For example, the polarizing layer 400 may be provided by dyeing a polyvinyl alcohol (PVA) film with an iodine compound. The polarizing layer 400 may reduce the reflectance of external light.

[0161] In one embodiment, the polarizing layer 400 may include a color filter. The color filter may be arranged in a predetermined configuration. For example, the arrangement of the color filter can be considered from the configuration included in the display layer 100 (reference 100). Figure 5The color of the light emitted by the pixels in the image is used to determine the antireflection layer. In another embodiment, the antireflection layer may include a destructive interference structure. For example, the destructive interference structure may include a first reflective layer and a second reflective layer disposed on different layers. The first reflected light and the second reflected light reflected from the first reflective layer and the second reflective layer, respectively, can destructively interfere with each other, and therefore, the reflectivity of the external light can be reduced.

[0162] The polarizing layer 400 may overlap with the high refractive index layer 300. For example, the polarizing layer 400 may seal the high refractive index layer 300. At least a portion of the polarizing layer 400 may overlap with the first organic opening VOP1. For example, the polarizing layer 400 may overlap with a portion of the second organic opening VOP2 and the first organic opening VOP1. The end portion 400E of the polarizing layer 400 may be controlled by the second organic opening VOP2. The end portion 400E of the polarizing layer 400 may overlap with the encapsulation layer 140.

[0163] The protective layer 500 can be set in the first region NA1 (reference). Figure 2 ) and bending area BA (reference) Figure 2 The protective layer 500 can be configured to be spaced apart from the high refractive index layer 300. The protective layer 500 may not overlap with the first organic opening VOP1. The protective layer 500 can prevent the circuit layer 120 from being bent when the display panel 1200 is bent (see reference). Figure 4 The protective layer 500 may be damaged. The protective layer 500 may contact the polarizing layer 400. However, this is merely exemplary, and the arrangement between the protective layer 500 and the polarizing layer 400 is not limited thereto. For example, the protective layer 500 and the polarizing layer 400 may be arranged to be spaced apart from each other.

[0164] The interfacial adhesion between the high refractive index layer 300 and the protective layer 500 can be weaker than the interfacial adhesion between the polarizing layer 400 and the protective layer 500. For example, if the high refractive index layer 300 contacts the protective layer 500, the protective layer 500 may be separated due to the weaker interfacial adhesion. However, in this embodiment, the high refractive index layer 300 may not overlap with the first organic opening VOP1. The end 300E of the high refractive index layer 300 may be positioned closer to the effective region AA than the first organic opening VOP1. The protective layer 500 may be spaced apart from the effective region AA, and the first organic opening VOP1 is inserted between the protective layer 500 and the effective region AA. The first organic opening VOP1 prevents the high refractive index layer 300 from contacting the protective layer 500. Separation of the protective layer 500 due to the interfacial adhesion between the high refractive index layer 300 and the protective layer 500 can be prevented. Therefore, the display device 1000 (reference) Figure 1 It can have improved reliability.

[0165] Figure 7 This illustrates the relationship according to the implementation method. Figure 2 A schematic plan view of the area corresponding to region AA'. Figure 7 In the figures, the same reference numerals indicate Figure 4 The same elements are used in the same way, and therefore, detailed descriptions of the same elements will be omitted.

[0166] refer to Figure 7 The dam opening DOP can be defined within the first region NA1. The dam opening DOP can be positioned between the protrusions 150. The dam opening DOP and each of the third pixel regions PXA-G can have substantially the same shape. However, this is merely exemplary, and the shape of each of the dam opening DOPs is not limited thereto. For example, each of the dam opening DOPs can have a rectangular shape.

[0167] The dam opening DOP can include the first dam opening DOP1 and the second dam opening DOP2.

[0168] The first dam opening DOP1 can be located between the second protrusion 152 and the third protrusion 153. The first dam opening DOP1 can be arranged to be spaced apart from each other in the first direction DR1.

[0169] The second dam opening DOP2 can be located between the first protrusion 151 and the second protrusion 152. The second dam openings DOP2 can be arranged spaced apart from each other in the first direction DR1.

[0170] Figure 8 It is along Figure 7 A schematic cross-sectional view taken from line III-III'. Figure 8 In the figures, the same reference numerals indicate Figure 6 The same elements are used in the same way, and therefore, detailed descriptions of the same elements will be omitted.

[0171] refer to Figure 8 The first dam opening DOP1 and the second dam opening DOP2 can be confined within the outer region NAA of the insulation layer 205. The second dam opening DOP2 can be referred to as the third opening DOP2.

[0172] The first dam opening DOP1 can be located between the third protrusion 153 and the second protrusion 152. The second dam opening DOP2 can be located between the second protrusion 152 and the first protrusion 151. The first dam opening DOP1 and the second dam opening DOP2 can be spaced apart from each other in the second direction DR2, and the second protrusion 152 is inserted between the first dam opening DOP1 and the second dam opening DOP2.

[0173] The high refractive index layer 300 may cover the first dam opening DOP1 and the second dam opening DOP2, or overlap with the first dam opening DOP1 and the second dam opening DOP2. For example, the high refractive index layer 300 may fill the first dam opening DOP1 and the second dam opening DOP2.

[0174] According to this disclosure, the first dam opening DOP1 and the second dam opening DOP2 can be covered by or overlap with the high refractive index layer 300, and the flatness of the upper surface of the high refractive index layer 300 can be controlled (or adjusted). The first dam opening DOP1 and the second dam opening DOP2 can be controlled such that the protrusions of the high refractive index layer 300 ( Figure 8 Not shown in the image; see reference. Figure 6 The thickness of the protrusion (PTA) can be reduced, or the protrusion ( Figure 8 Not shown in the image; see reference. Figure 6 The protruding PTA can overlap with the surrounding NAA area. Therefore, it is possible to prevent [something] from being emitted from the display device 1000 (reference). Figure 1 External observation of protrusions () Figure 8 Not shown in the image; see reference. Figure 6 The protrusion of PTA). As a result, the display device can be improved by 1000 (reference). Figure 1 The reliability of ).

[0175] Figure 9 This illustrates the relationship according to the implementation method. Figure 2 A schematic plan view of the area corresponding to region AA'. Figure 9 In the figures, the same reference numerals indicate Figure 4 The same elements are used in the same way, and therefore, detailed descriptions of the same elements will be omitted.

[0176] refer to Figure 9 The first organic opening VOP1a can be defined in the first region NA1. The first organic opening VOP1a can be disposed between the first protrusion 151 and the second organic opening VOP2. In a plan view, each of the first organic openings VOP1a can have a rhombus or rhomboid shape. The rhombus or rhomboid shape can be associated with the high refractive index layer 300 (reference). Figure 6 The surface tension is required. However, this is merely exemplary, and the shape of each of the first organic openings VOP1a is not limited thereto. For example, in a plan view, each of the first organic openings VOP1a may have a circular shape. The first organic openings VOP1a may be positioned in a first direction DR1 and a second direction DR2.

[0177] The first organic opening VOP1a may include a first opening VOP1-1, a second opening VOP1-2, and a third opening VOP1-3. The first opening VOP1-1, the second opening VOP1-2, and the third opening VOP1-3 may be arranged spaced apart from each other in the first direction DR1 and the second direction DR2.

[0178] Figure 10 It is along Figure 9 A schematic cross-sectional view taken along line IV-IV'. Figure 10 In the figures, the same reference numerals indicate Figure 6 The same elements are used in the same way, and therefore, detailed descriptions of the same elements will be omitted.

[0179] refer to Figure 10 The first organic opening VOP1a may be defined in the peripheral region NAA of the insulating layer 205. The first organic opening VOP1a may be referred to as the second opening VOP1a.

[0180] The first organic opening VOP1a can be disposed between the first protrusion 151 and the end 400E of the polarization layer 400.

[0181] The high refractive index layer 300 may be spaced apart from the first organic opening VOP1a. The high refractive index layer 300 may not overlap with the first organic opening VOP1a.

[0182] The first organic opening VOP1a may include a first opening VOP1-1, a second opening VOP1-2, and a third opening VOP1-3. Due to the surface tension of each of the first opening VOP1-1, the second opening VOP1-2, and the third opening VOP1-3, the end 300E of the high refractive index layer 300 can be prevented from overflowing into the first organic opening VOP1a. The high refractive index layer 300 may overlap with the polarizing layer 400.

[0183] In this embodiment, the high refractive index layer 300 may not overlap with the protective layer 500. The end 300E of the high refractive index layer 300 may be positioned closer to the effective region AA than the first organic opening VOP1a. The protective layer 500 may be spaced apart from the effective region AA, and the first organic opening VOP1a is inserted between the protective layer 500 and the effective region AA. The first organic opening VOP1a prevents the high refractive index layer 300 from contacting the protective layer 500. Therefore, the protective layer 500 can be prevented from separating due to interfacial adhesion between the high refractive index layer 300 and the protective layer 500.

[0184] In this embodiment, the end portion 300E of the high refractive index layer 300 can be controlled by a first organic opening VOP1a. For example, the region where the high refractive index layer 300 is disposed can be controlled by the first organic opening VOP1a. The flatness of the upper surface of the high refractive index layer 300 can be controlled by the controlled region of the high refractive index layer 300. The first organic opening VOP1a can reduce protrusions ( Figure 10 Not shown in the image; see reference. Figure 6 The degree of protrusion of the PTA protrusion. The first organic opening VOP1a can reduce the degree of protrusion (PTA). Figure 10 Not shown in the image; see reference. Figure 6 The thickness of the protrusion (PTA), or the thickness of the protrusion (PTA) can be controlled. Figure 10 Not shown in the image; see reference. Figure 6 The protruding PTA overlaps with the surrounding NAA area. Therefore, it prevents interference from the display device 1000 (reference). Figure 1 External observation of protrusions () Figure 10 Not shown in the image; see reference. Figure 6 The protruding PTA). As a result, a display device 1000 with improved reliability can be provided (reference). Figure 1 ).

[0185] Figure 11 This illustrates an embodiment. Figure 2 A schematic plan of area BB'.

[0186] refer to Figure 11 The first organic opening VOP1 may define a first portion VOP1-P1 extending in the first direction DR1 and a second portion VOP1-P2 protruding in the second direction DR2. The second portion VOP1-P2 may face the display panel 1200 (reference). Figure 2 The edge of the 1200-B protrudes.

[0187] The end 300E of the high refractive index layer 300 can be configured to be spaced apart from the first portion VOP1-P1 in the second direction DR2, and can be configured to be spaced apart from the second portion VOP1-P2 in the first direction DR1.

[0188] The polarizing layer 400 may partially overlap with the high refractive index layer 300, the first organic opening VOP1, and the second organic opening VOP2. In a planar view, the polarizing layer 400 may have a larger area than the high refractive index layer 300.

[0189] The end 400E of the polarization layer 400 can be configured to be spaced apart from the first portion VOP1-P1 in the second direction DR2, and can also be configured to be spaced apart from the second portion VOP1-P2 in the first direction DR1.

[0190] The protective layer 500 may overlap with the curved region BA, the first region NA1, and a portion of the polarizing layer 400.

[0191] The protective layer 500 can be spaced apart from the high refractive index layer 300 in the second direction DR2 (and the first part VOP1-P1 is inserted between the protective layer 500 and the high refractive index layer 300), and can be spaced apart from the high refractive index layer 300 in the first direction DR1 (and the second part VOP1-P2 is inserted between the protective layer 500 and the high refractive index layer 300).

[0192] In this embodiment, the first portion VOP1-P1 and the second portion VOP1-P2 prevent the high refractive index layer 300 from contacting the protective layer 500. This prevents the protective layer 500 from separating due to the weak interfacial adhesion between the high refractive index layer 300 and the protective layer 500. Therefore, the display device 1000 (reference) can be improved. Figure 1 The reliability of ).

[0193] Figure 12 This illustrates the relationship according to the implementation method. Figure 2 A schematic plan view of the area corresponding to region BB'.

[0194] refer to Figure 12 The first organic opening VOP1b can extend in the first direction DR1. The first organic opening VOP1b can be connected to the display panel 1200 (reference) in the second direction DR2. Figure 2 The edges of the 1200-B are spaced apart.

[0195] The end 300E of the high refractive index layer 300 can be configured to be spaced apart from the first organic opening VOP1b in the second direction DR2.

[0196] The polarizing layer 400 may partially overlap with the high refractive index layer 300, the first organic opening VOP1b, and the second organic opening VOP2b. In a planar view, the polarizing layer 400 may have a larger area than the high refractive index layer 300.

[0197] The end 400E of the polarizing layer 400 can be configured to be spaced apart from the first organic opening VOP1b in the second direction DR2.

[0198] The protective layer 500 may overlap with the curved region BA, the first region NA1, and a portion of the polarizing layer 400.

[0199] The protective layer 500 can be spaced apart from the high refractive index layer 300 in the second direction DR2, and the first organic opening VOP1b is inserted between the protective layer 500 and the high refractive index layer 300.

[0200] According to this disclosure, the first organic opening VOP1b can prevent the high refractive index layer 300 from contacting the protective layer 500. This can prevent the protective layer 500 from separating due to the interfacial adhesion between the high refractive index layer 300 and the protective layer 500. Therefore, the display device 1000 (reference) can be improved. Figure 1 The reliability of ).

[0201] Although embodiments of this disclosure have been described, it should be understood that this disclosure is not intended to be limited to these embodiments, but rather that various changes and modifications can be made by those skilled in the art within the spirit and scope of the appended claims. Therefore, the subject matter disclosed should not be limited to any single embodiment described herein, and the scope of the invention should be determined in accordance with the appended claims.

Claims

1. A display device, including: The display layer includes: The effective area includes multiple pixel regions; and The outer area is adjacent to the effective area; An insulating layer is disposed on the display layer, the insulating layer comprising: At least one first opening overlaps with the plurality of pixel regions; and At least one second opening is located in the peripheral region; A refractive index layer disposed on the insulating layer, the refractive index layer having a refractive index greater than that of the insulating layer and spaced apart from the at least one second opening of the insulating layer; and A polarizing layer is disposed on and overlaps the refractive index layer, wherein at least a portion of the polarizing layer overlaps with the at least one second opening.

2. The display device according to claim 1, wherein, The refractive index layer does not overlap with the at least one second opening.

3. The display device according to claim 1, wherein, The polarization layer covers the at least one second opening.

4. The display device according to claim 1, further comprising a protective layer, wherein, The peripheral region includes a curved region, and The protective layer is disposed in the curved region and spaced apart from the refractive index layer.

5. The display device according to claim 4, wherein, The protective layer contacts the polarizing layer.

6. The display device according to claim 1, wherein, The insulating layer comprises organic materials.

7. The display device according to claim 1, wherein, In the plan view, the polarizing layer has a larger area than the refractive index layer.

8. The display device according to claim 1, wherein, The at least one second opening in the insulating layer includes: The first part extends in the first direction; and The second part extends toward the edge of the display layer in a second direction intersecting the first direction.

9. The display device according to claim 8, wherein, The ends of the refractive index layer and the ends of the polarizing layer are spaced apart from each other, and The at least one second opening is disposed between the end of the refractive index layer and the end of the polarizing layer.

10. The display device according to claim 1, wherein, The at least one second opening of the insulating layer extends in a first direction and is spaced apart from the edge of the display layer in a second direction intersecting the first direction.

11. The display device of claim 1, further comprising a first protrusion disposed in the peripheral region, surrounding at least a portion of the effective region and disposed below the refractive index layer.

12. The display device according to claim 11, wherein, The at least one second opening in the insulating layer is disposed between the end of the polarizing layer and the first protrusion.

13. The display device according to claim 11, wherein, The refractive index layer overlaps with the first protrusion.

14. The display device of claim 11, further comprising a second protrusion disposed in the peripheral region, surrounding at least a portion of the effective region and spaced apart from the at least one second opening in the insulating layer. in, The first protrusion is disposed between the second protrusion and the at least one second opening.

15. The display device according to claim 14, wherein, The insulating layer includes at least one third opening located between the first protrusion and the second protrusion.

16. The display device according to claim 15, wherein, The refractive index layer overlaps with the at least one third opening.

17. The display device according to claim 15, wherein, The at least one third opening includes a plurality of third openings, and In the plan view, the plurality of third openings are spaced apart from each other in the first direction.

18. The display device according to claim 1, wherein, The at least one second opening includes a plurality of second openings, and The plurality of second openings are spaced apart from each other in the first direction and in the second direction intersecting the first direction.

19. A display device, including: The display layer includes: The effective area includes multiple pixel regions; A first region, adjacent to the effective region; and The curved region is adjacent to the first region; A sensor layer is disposed on the display layer. The sensor layer includes a plurality of sensing electrodes and an insulating layer disposed on the plurality of sensing electrodes. The insulating layer includes: At least one first opening overlaps with the plurality of pixel regions; and At least one second opening overlaps with the first region; A refractive index layer is disposed on the insulating layer and spaced apart from the at least one second opening; and A protective layer, spaced apart from the refractive index layer and overlapping the curved region; The refractive index layer has a higher refractive index than the insulating layer.

20. The display device according to claim 19, wherein, The refractive index layer does not overlap with the at least one second opening, and The protective layer does not overlap with the at least one second opening.

21. The display device according to claim 19, wherein, The insulating layer comprises organic materials, and The refractive index layer is disposed directly on the insulating layer.

22. The display device according to claim 19, wherein, The insulating layer includes a third opening located between the at least one second opening and the effective area.

23. The display device according to claim 22, wherein, The third opening is filled with the refractive index layer.

24. The display device according to claim 19, wherein, The at least one second opening includes a plurality of second openings, and The plurality of second openings are spaced apart from each other in the first direction and in the second direction intersecting the first direction.

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