Flexible display device

Abstract

A flexible display apparatus is provided. The flexible display apparatus includes a protection member, a first adhesive member, a display member, a second adhesive member, and a window member. A thickness of the display member is less than a sum of thicknesses of the protection member and the window member. The display member includes a display panel layer, a touch sensing layer, and an anti-reflection layer integrated with each other to reduce the thickness of the flexible display apparatus. The reduction in thickness enables the flexible display apparatus to be bent with a relatively small radius of curvature and repeatedly bent (or flexed) with reduced likelihood of delamination of the first and second adhesive members.

Description

[0001] This application is a divisional application of the patent application with application number 201710136738.4, filed on March 9, 2017, and with the title of "Flexible display apparatus". TECHNICAL FIELD

[0002] The present disclosure relates to a flexible display apparatus, and more particularly, to a flexible display apparatus capable of being repeatedly bent or flexed. BACKGROUND

[0003] Electronic apparatuses such as smart phones, digital cameras, laptop computers, tablet computers, navigation assistance apparatuses, and television sets can allow a user to intentionally deform the apparatus in various ways and shapes. As such, a display apparatus (e.g., a flat panel display apparatus) of the electronic apparatus can also be deformed in correspondence to the deformation of the electronic apparatus. As such, flexible display apparatuses such as curved display apparatuses, bent display apparatuses, and rolled display apparatuses are interesting.

[0004] The above information disclosed in this Background section is only for enhancing the understanding of the background of the present inventive concept, and therefore, it can contain information that does not form the prior art that is already known in this technical field to those skilled workers in this field. SUMMARY

[0005] One or more exemplary embodiments provide a flexible display apparatus having improved durability.

[0006] Additional aspects will be set forth in the detailed description which follows, and in part will be apparent from the disclosure, or can be learned by practice of the inventive concept.

[0007] According to one or more exemplary embodiments, a flexible display apparatus includes a protection member forming a first outer surface exposed to an outside of the flexible display apparatus, a window member forming a second outer surface exposed to the outside, a display member disposed between the protection member and the window member, a first adhesive member coupling the display member to the protection member, and a second adhesive member coupling the display member to the window member. The display member includes a display panel layer forming a first display panel surface and a second display panel surface. The display panel layer includes a display area including a plurality of light emitting areas and a non-light emitting area adjacent to the plurality of light emitting areas, and a non-display area adjacent to the display area. The display member further includes a touch sensing layer forming a first base surface, and an anti-reflection layer forming a second base surface. The touch sensing layer is disposed directly on one of the first display panel surface, the second display panel surface, and the second base surface. The anti-reflection layer is disposed directly on the second display panel surface or the first base surface. A thickness of the display member is less than a sum of thicknesses of the protection member and the window member.

[0008] According to one or more example embodiments, a flexible display apparatus includes a protection member forming a first outer surface exposed to an outside of the flexible display apparatus, a window member forming a second outer surface exposed to the outside, a display member disposed between the protection member and the window member, a first adhesive member coupling the display member to the protection member, and a second adhesive member coupling the display member to the window member. The display member includes a display panel layer forming a first display panel surface and a second display panel surface disposed directly on the first adhesive member. The display panel layer includes a display area including a plurality of light emitting areas and a non-light emitting area adjacent to the plurality of light emitting areas, and a non-display area adjacent to the display area. The display member further includes a touch sensing layer forming a first base surface disposed directly on the second adhesive member, and a second surface opposite the first base surface, the second surface disposed directly on the second display panel surface. The touch sensing layer includes a plurality of first conductive patterns overlapping the non-light emitting area, the plurality of first conductive patterns disposed directly on the second display panel surface, a plurality of second conductive patterns overlapping the non-light emitting area, and a touch insulating layer configured to insulate the first conductive patterns from the second conductive patterns. The touch insulating layer includes a black matrix overlapping the non-light emitting area and the non-display area, and a plurality of color filters respectively overlapping the plurality of light emitting areas. A thickness of the display member is less than a sum of thicknesses of the protection member and the window member.

[0009] According to one or more example embodiments, a flexible display apparatus includes a protection member forming a first outer surface exposed to an outside of the flexible display apparatus, a window member forming a second outer surface exposed to the outside, a display member disposed between the protection member and the window member, a first adhesive member coupling the display member to the protection member, and a second adhesive member coupling the display member to the window member. The display member includes a display panel layer forming a first display panel surface and a second display panel surface disposed directly on the first adhesive member. The display panel layer includes a display area including a plurality of light emitting areas and a non-light emitting area adjacent to the plurality of light emitting areas, and a non-display area adjacent to the display area. The display member further includes a touch sensing layer forming a first base surface disposed directly on the second adhesive member, and a second surface opposite the first base surface, the second surface disposed directly on the second display panel surface. The display panel layer includes a first metal layer overlapping the display area and the non-display area, a transparent conductive layer disposed directly on the first metal layer, and a second metal layer disposed directly on the transparent conductive layer. A thickness of the display member is less than a sum of thicknesses of the protection member and the window member.

[0010] According to one or more exemplary embodiments, a method of manufacturing a flexible display device includes forming a display member configured to display an image, the display member including: a display panel layer configured to generate an image; a touch sensing layer configured to sense touch interactions related to the image, the touch sensing layer being in direct contact with the display panel layer; and a reflection-preventing layer configured to reduce external light reflection from the display panel layer, the reflection-preventing layer being in direct contact with the display panel layer or the touch sensing layer. The method further includes: bonding a protective member to a first side of the display member via a first adhesive member; and bonding a window member to a second side of the display member via a second adhesive member, the second side being opposite to the first side. The thickness of the display member is less than the sum of the thicknesses of the protective member and the window member.

[0011] According to one or more exemplary embodiments, a method of manufacturing a flexible display device includes: forming one or more first layers configured to generate an image on a first outermost layer of one or more first layers; and forming one or more second layers configured to reduce external light reflection from the one or more first layers. The one or more second layers include: a second outermost layer in direct contact with the first outermost layer; and a third outermost layer opposite to the second outermost layer. The method further includes forming one or more third layers configured to sense touch interactions related to the image. The one or more third layers include: a fourth outermost layer in direct contact with the third outermost layer; and a fifth outermost layer opposite to the fourth outermost layer. The method further includes: bonding one or more fourth layers to one or more first layers via a first adhesive member, the one or more fourth layers configured to at least protect one or more first layers; and bonding one or more fifth layers to a fifth outermost layer via a second adhesive member, the one or more fifth layers configured to form a window over one or more first layers. The sum of the thicknesses of the one or more first layers, the one or more second layers, and the one or more third layers is less than the sum of the thicknesses of the one or more fourth layers and the one or more fifth layers.

[0012] According to one or more exemplary embodiments, a method of manufacturing a flexible display device includes forming a display member comprising a display panel layer configured to generate an image in a display area. The display area includes: a plurality of light-emitting areas; and a plurality of non-light-emitting areas. The display member further includes a touch-sensing layer configured to: sense touch interactions related to the image; and reduce the reflectivity of external light. The method further includes: attaching a protective member to a first side of the display member via a first adhesive member; and attaching a window member to a second side of the display member via a second adhesive member, the second side being opposite to the first side. The thickness of the display member is less than the sum of the thicknesses of the protective member and the window member. The touch-sensing layer includes: a plurality of conductive patterns configured to sense touch interactions, the plurality of conductive patterns being formed directly on the display panel layer and superimposed on the plurality of non-light-emitting areas; a touch insulating layer covering the plurality of first conductive patterns, the touch insulating layer including a plurality of openings superimposed on the plurality of light-emitting areas; and a plurality of color filters formed directly on the display panel layer located in the plurality of openings, the plurality of color filters being configured to reduce the reflectivity of external light.

[0013] According to one or more exemplary embodiments, a flexible display device includes a display panel layer, a touch sensing layer, a window member, and a protective member. The display panel layer includes: an encapsulation layer; a light-emitting layer configured to emit light onto the surface of the encapsulation layer; and electrodes configured to drive the light-emitting layer. The touch sensing layer is directly disposed on the surface of the encapsulation layer. The window member is directly bonded to the surface of the touch sensing layer via a first adhesive member; the protective member is bonded to the surface of the display panel layer disposed on the surface of the thin-film encapsulation layer via a second adhesive member. The total thickness of the display panel layer and the touch sensing layer is less than the total thickness of the protective member and the window member. At least one of the electrodes includes: a first metal layer; a transparent conductive layer directly disposed on the first metal layer; and a second metal layer directly disposed on the transparent conductive layer.

[0014] The general description above and the detailed description below are exemplary and interpretive, and are intended to provide further explanation of the claimed subject matter. Attached Figure Description

[0015] The accompanying drawings illustrate exemplary embodiments of the inventive concept and, together with the description, serve to explain the principles of the inventive concept, wherein the drawings are included to provide a further understanding of the inventive concept, and the drawings are incorporated in and form a part of this specification.

[0016] FIG. 1A This is a perspective view showing a first operating state of a flexible display device according to one or more exemplary embodiments.

[0017] FIG. 1B This illustrates one or more exemplary embodiments. FIG. 1AA perspective view of the second operating state of the flexible display device.

[0018] FIG. 1C This illustrates one or more exemplary embodiments. FIG. 1A A perspective view of the third operating state of the flexible display device.

[0019] FIG. 2A In the first operating state according to one or more exemplary embodiments FIG. 1A A cross-sectional view of a flexible display device.

[0020] FIG. 2B In the second operating state according to one or more exemplary embodiments FIG. 1B A cross-sectional view of a flexible display device.

[0021] FIG. 2C In the third operating state according to one or more exemplary embodiments FIG. 1C A cross-sectional view of a flexible display device.

[0022] FIG. 3A This is a cross-sectional view of a flexible display device in a second operating state according to one or more exemplary embodiments.

[0023] FIG. 3B In the third operating state according to one or more exemplary embodiments FIG. 3A A cross-sectional view of a flexible display device.

[0024] FIG. 4A , FIG. 4B , FIG. 4C and FIG. 4D This is a cross-sectional view of a flexible display device in a first operating state according to one or more exemplary embodiments.

[0025] FIG. 5 It is a perspective view of a flexible display panel according to one or more exemplary embodiments.

[0026] FIG. 6 It is based on one or more exemplary embodiments. FIG. 5 The equivalent circuit diagram of the pixels of the flexible display panel.

[0027] FIG. 7 This is a partial plan view of an organic light-emitting display panel according to one or more exemplary embodiments.

[0028] FIG. 8A and FIG. 8B It is based on one or more exemplary embodiments. FIG. 7 A partial cross-sectional view of an organic light-emitting display panel.

[0029] FIG. 9A , FIG. 9B and FIG. 9C It is a cross-sectional view of a thin film encapsulation layer according to one or more exemplary embodiments.

[0030] FIG. 10A , FIG. 10B and FIG. 10C It is a cross-sectional view of a display device according to one or more exemplary embodiments.

[0031] FIG. 11A and FIG. 11B This is a plan view illustrating the conductive layer of a touch detection component according to one or more exemplary embodiments.

[0032] FIG. 12A It is based on one or more exemplary embodiments. FIG. 11A A magnified view of region AA in the image.

[0033] FIG. 12B and FIG. 12C These are sections taken along section lines I-I' and II-II' respectively, according to one or more exemplary embodiments. FIG. 12A A partial sectional view.

[0034] FIG. 13A It is based on one or more exemplary embodiments. FIG. 11B A magnified view of region BB in the image.

[0035] FIG. 13B and FIG. 13C These are sections taken along sections III-III' and IV-IV' respectively, according to one or more exemplary embodiments. FIG. 13A A partial sectional view.

[0036] FIG. 14A It is based on one or more exemplary embodiments. FIG. 11B A magnified view of region CC in the image.

[0037] FIG. 14B It is a section taken along the cross-section line V-V' according to one or more exemplary embodiments. FIG. 14A A partial sectional view.

[0038] FIG. 15A and FIG. 15B This is a plan view illustrating the conductive layer of a touch detection component according to one or more exemplary embodiments.

[0039] FIG. 15C It is based on one or more exemplary embodiments. FIG. 15B A magnified view of region CC in the image.

[0040] FIG. 15DIt is a section taken along section line VI-VI' according to one or more exemplary embodiments. FIG. 15C A partial sectional view.

[0041] FIG. 16A , FIG. 16B , FIG. 16C , FIG. 16D , FIG. 16E , FIG. 16F and FIG. 16G It is a cross-sectional view of a display device according to one or more exemplary embodiments.

[0042] FIG. 17A , FIG. 17B , FIG. 17C and FIG. 17D It is a cross-sectional view of a display device according to one or more exemplary embodiments.

[0043] FIG. 18A , FIG. 18B , FIG. 18C , FIG. 18D , FIG. 18E and FIG. 18F It is a cross-sectional view of a display device according to one or more exemplary embodiments.

[0044] FIG. 19A and FIG. 19B It is a cross-sectional view of a display device according to one or more exemplary embodiments.

[0045] FIG. 20A and FIG. 20B This is a cross-sectional view of the cathode of an organic light-emitting diode in a display device according to one or more exemplary embodiments. Detailed Implementation

[0046] In the following description, numerous specific details are set forth for illustrative purposes to provide a thorough understanding of the various exemplary embodiments. However, it will be apparent that various exemplary embodiments may be implemented without these specific details or using one or more equivalent arrangements. In other instances, well-known structures and apparatuses are shown in block diagram form to avoid unnecessarily obscuring the various exemplary embodiments.

[0047] Unless otherwise stated, the exemplary embodiments shown are to be understood as providing exemplary features of details for variations of various exemplary examples. Therefore, unless otherwise stated, features, components, modules, layers, films, panels, regions, and / or aspects of various examples may be additionally combined, separated, exchanged, and / or rearranged without departing from the disclosed exemplary embodiments. Furthermore, in the drawings, the dimensions and relative dimensions of layers, films, panels, regions, etc., may be exaggerated for clarity and descriptive purposes. When exemplary embodiments can be implemented differently, the specific process sequence may be performed in a different order than that described. For example, two consecutively described processes may be performed substantially simultaneously, or in the reverse order of their description. Furthermore, the same reference numerals denote the same elements.

[0048] When an element or layer is referred to as being "on," "connected to," or "bonded to" another element or layer, the element or layer may be directly on, connected to, or bonded to the other element or layer, or there may be intermediate elements or layers present. However, when an element or layer is referred to as being "directly on," "directly connected to," or "directly bonded to" another element or layer, there are no intermediate elements or layers present. Furthermore, the DR1, DR2, and DR3 axes are not limited to the three axes of a Cartesian coordinate system but can be interpreted in a broader sense. For example, the DR1, DR2, and DR3 axes may be perpendicular to each other or may represent different directions that are not perpendicular to each other. For the purposes of this disclosure, "at least one of X, Y, and Z" and "at least one selected from the group consisting of X, Y, and Z" can be interpreted as only X, only Y, only Z, or any combination of two or more of X, Y, and Z (such as XYZ, XYY, YZ, and ZZ, for example). As used herein, the term “and / or” includes any and all combinations of one or more of the relevant listed items.

[0049] Although the terms “first,” “second,” etc., may be used herein to describe various elements, components, regions, layers, and / or parts, these elements, components, regions, layers, and / or parts should not be limited by these terms. These terms are used to distinguish one element, component, region, layer, and / or part from another element, component, region, layer, and / or part. Therefore, without departing from the teachings of this disclosure, the first element, component, region, layer, and / or part discussed below may be referred to as the second element, component, region, layer, and / or part.

[0050] For illustrative purposes, spatial relative terms such as “below,” “under,” “down,” “above,” and “above” may be used herein to describe the relationship of an element or feature as shown in the figures to other elements or features. Spatial relative terms are intended to encompass different orientations of the device in use, operation, and / or manufacture, in addition to those depicted in the figures. For example, if the device in the figures were flipped, an element described as “below” or “under” other elements or features would subsequently be positioned “above” said other elements or features. Thus, the exemplary term “below” can encompass both above and below orientations. Furthermore, the device may be otherwise positioned (e.g., rotated 90 degrees or in other orientations), and the spatial relative descriptive terms used herein shall be interpreted accordingly.

[0051] The terminology used herein is for the purpose of describing particular embodiments and is not intended to be limiting. As used herein, unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “the (described)” are also intended to include the plural forms. Moreover, when the terms “comprising” and / or “including” are used in this specification, it indicates the presence of the stated features, integrals, steps, operations, elements, components, and / or groups thereof, but does not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or groups thereof.

[0052] Various exemplary embodiments are described herein with reference to cross-sectional views as schematic illustrations of idealized exemplary embodiments and / or intermediate structures. Thus, variations in the shapes of the illustrations due to, for example, manufacturing techniques and / or tolerances will be anticipated. Therefore, the exemplary embodiments disclosed herein should not be construed as limited to the specific shapes shown for the regions, but will include deviations in shape caused, for example, by manufacturing processes. For example, an injection region shown as rectangular will generally have rounded or curved features and / or a gradient of injection concentration at its edges, rather than a binary variation from an injection region to a non-injection region. Similarly, the buried region formed by injection results in some injection in the region between the buried region and the surface through which the injection occurs. Therefore, the regions shown in the figures are substantially schematic, and their shapes are not intended to show the actual shapes of the regions of the device, nor are they intended to be limiting.

[0053] Unless otherwise specified, all terms used herein (including technical and scientific terms) shall have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure is a part. Unless so expressly defined herein, terms such as those defined in a general dictionary shall be interpreted as having the same meaning as they have in the context of the relevant field, and shall not be interpreted in an idealized or overly formalized sense.

[0054] FIG. 1A , FIG. 1B and FIG. 1C These are perspective views showing a first operating state, a second operating state, and a third operating state of a flexible display device DD according to one or more exemplary embodiments. FIG. 2A , FIG. 2B and FIG. 2C These are cross-sectional views showing the first operating state, second operating state, and third operating state of the flexible display device DD according to one or more exemplary embodiments.

[0055] The display surface IS on which the image IM is displayed is parallel to the surface defined by the first direction axis DR1 and the second direction axis DR2. The normal direction of the display surface IS (i.e., the thickness direction of the flexible display device DD) is denoted by the third direction axis DR3. The front (or top) and rear (or bottom) surfaces of each component (or assembly) of the flexible display device DD are separated from each other on the third direction axis DR3. The directions represented by the first direction axis DR1, the second direction axis DR2, and the third direction axis DR3 are only relative and can also be changed to different directions relative to each other. In the following, the first direction to the third direction can be represented by the same reference numerals as the directions represented by the first direction axis DR1, the second direction axis DR2, and the third direction axis DR3, respectively.

[0056] Foldable display devices as FIGS. 1A-1C and FIGS. 2A-2C An example of a flexible display device DD is shown. However, it is contemplated that the exemplary embodiments are not limited thereto or not limited thereto. For example, the flexible display device DD may be configured as a rollable display device that can be wound up. Note that the flexible display device DD can be used in large electronic devices such as televisions, monitors, etc., as well as medium and small electronic devices such as mobile phones, tablets, laptops, personal computers, navigation units for vehicles, game consoles, smartwatches, etc.

[0057] like FIG. 1A As shown, the display surface IS of the flexible display device DD can be divided into multiple regions. The flexible display device DD may include a display area DD-DA on which an image IM is displayed (or sensed), and a non-display area DD-NDA disposed adjacent to (or outside) the display area DD-DA. The non-display area DD-NDA may be an area where the image IM is not displayed. (The vase is shown in the image.) FIG. 1AThe example shown is an image IM. For example, the display area DD-DA may have a rectangular shape, and the non-display area DD-NDA may surround the display area DD-DA. However, it is contemplated that the exemplary embodiments are not limited to or not limited thereto. For example, the shapes of the display area DD-DA and the non-display area DD-NDA may be designed relative to each other. For this purpose, the respective shapes of the display area DD-DA and the non-display area DD-NDA may be the same as each other or different from each other.

[0058] like FIGS. 1A-1C As seen, the flexible display device DD may include a bendable region BA relative to the bending axis BX, and a first non-bendable region NBA1 and a second non-bendable region NBA2. For example... FIG. 1B As shown, the flexible display device DD can be bent inwards, so that the display surface IS of the first non-bending region NBA1 and the display surface IS of the second non-bending region NBA2 face each other. FIG. 1C As shown, the flexible display device DD can be bent outwards to expose the display surface IS to the outside.

[0059] According to one or more exemplary embodiments, the flexible display device DD may include a plurality of bending regions BA. Furthermore, the bending regions BA may be defined to correspond to the configuration of the flexible display device DD operated by a user; for example, the bending regions may be dynamically configured by the user. For example, with... FIG. 1B and FIG. 1C As shown in the examples, the curved region BA can be defined either parallel to the first direction axis DR1 or defined in a diagonal direction. In one or more exemplary embodiments, the flexible display device DD can be configured to repeat only... FIGS. 1A-1C The operating mode.

[0060] like FIGS. 2A-2C As shown, the display device DD includes a protective member PM, a window member WM, a display member DM, a first adhesive member AM1, and a second adhesive member AM2. The display member DM is disposed between the protective member PM and the window member WM. The first adhesive member AM1 is bonded to the display member DM and the protective member PM, and the second adhesive member AM2 is bonded to the display member DM and the window member WM.

[0061] The protective component PM protects the display component DM. The protective component PM provides a first outer surface OS-L exposed to the outside and an adhesive surface AS1 to which it adheres to the first adhesive component AM1. Hereinafter, the adhesive surface AS1 of the first adhesive component AM1 may be referred to as the first adhesive surface AS1 to distinguish it from the adhesive surfaces of other components. The protective component PM prevents external moisture, oxygen, impurities, etc., from penetrating into the display component DM and absorbs external impacts. The protective component PM may include a plastic film as a base layer.

[0062] According to one or more exemplary embodiments, the protective member PM may include a material selected from the group consisting of polyethersulfone (PES), polyacrylate (PAR), polyetherimide (PEI), polyethylene naphthalate (PEN), polyethylene terephthalate (PET), polyphenylene sulfide (PPS), polyallyl ester, polyimide (PI), polycarbonate (PC), poly(aryl ether sulfone), and combinations thereof. However, it is contemplated that the material used to form the protective member PM is not limited to plastic resins. For example, the protective member PM may be formed from an organic / inorganic composite material. The protective member PM may include a porous organic layer and an inorganic material filling the pores of the organic layer.

[0063] In one or more exemplary embodiments, the protective member PM may further include a functional layer disposed on the plastic film. The functional layer may include a resin layer. The functional layer may be formed by coating.

[0064] The window member WM protects the display member DM from external impacts and provides an input surface for the user. The window member WM provides a second outer surface OS-U exposed to the outside and an adhesive surface AS2 that adheres to the second adhesive member AM2. FIG. 2B The display surface IS can be the second outer surface OS-U. In the following text, the adhesive surface AS2 of the second adhesive member AM2 can be referred to as the second adhesive surface AS2 to distinguish it from the adhesive surfaces of other members. The window member WM will be described in more detail later.

[0065] The display component DM includes a display panel layer DP, a touch sensing layer TS, and an anti-reflection layer RPL, which are integrally formed with each other through a continuous process. Although the display component DM is shown as an example with the display panel layer DP stacked sequentially to the anti-reflection layer RPL, the exemplary embodiments are not limited thereto. According to one or more exemplary embodiments, the stacking order of the functional layers of the display component DM may be changed. Additionally, a portion of a functional layer may be omitted, or two functional layers may be replaced by a single functional layer.

[0066] The display panel layer DP generates an image corresponding to the input image data (see...). FIG. 2CThe accompanying reference numeral IM is used. The display panel layer DP provides a first display panel surface BS1-L (or base bottom surface) and a second display panel surface BS1-U (or base top surface) facing each other in the thickness direction DR3. The display panel layer DP can be an organic light-emitting display panel, an electrophoretic display panel, or an electrowetting display panel. However, it is contemplated that the exemplary embodiments are not limited to the type (or kind) of display panel, and thus, any suitable display panel can be used in conjunction with the exemplary embodiments described herein. For ease of description and illustration, exemplary embodiments will be described in conjunction with organic light-emitting display panel embodiments. Organic light-emitting display panels will then be described in more detail.

[0067] The touch sensing layer TS acquires coordinate information from external inputs, such as user input. The touch sensing layer TS can be disposed on the second display panel surface BS1-U (e.g., directly disposed on the second display panel surface BS1-U). The touch sensing layer TS provides a first base surface BS2 (or a touch base surface). It is contemplated that the touch sensing layer TS can be manufactured together with the display panel layer DP via a continuous process. For ease of illustration and description, the touch sensing layer TS will be described in conjunction with an embodiment of a capacitive touch detection component. However, exemplary embodiments are not limited thereto or not limited thereto. For example, the touch sensing layer TS can be replaced by another touch sensing layer (such as an electromagnetic induction touch detection component) comprising two types of touch electrodes. The capacitive touch sensing component will be described in more detail later.

[0068] The anti-reflection layer RPL can absorb externally incident light or destructively interfere with said light to reduce external light reflection of the flexible display device DD. In one or more exemplary embodiments, the anti-reflection layer RPL can be replaced by an optical film (e.g., a polarizing film and a λ / 4 wavelength film) for preventing external light reflection. The anti-reflection layer RPL can be disposed on a first base surface BS2 (e.g., directly disposed on the first base surface BS2). The anti-reflection layer RPL provides a second base surface BS3 (or an anti-reflection base surface). In one or more exemplary embodiments, the anti-reflection layer RPL can be manufactured together with the touch sensing layer TS via a continuous process. The anti-reflection layer RPL will be described in more detail later.

[0069] According to one or more exemplary embodiments, the touch sensing layer TS and the anti-reflection layer RPL, formed by a continuous process, can reduce the thickness of the display device DD. Conventional touch panels and conventional optical films, manufactured separately, require separate adhesive components to adhere to the conventional display panel. Furthermore, each of the separately manufactured conventional touch panels and conventional optical films has a defined thickness to meet self-durability requirements. According to one or more exemplary embodiments, the touch sensing layer TS and the anti-reflection layer RPL are formed by a continuous process, thus allowing the adhesive components to be omitted. In this way, the touch sensing layer TS and the anti-reflection layer RPL can be directly disposed on the display panel layer DP and have a thin thickness on the display panel layer DP.

[0070] Each of the first adhesive member AM1 and the second adhesive member AM2 may be an optically transparent adhesive film (OCA), an optically transparent resin (OCR), or a pressure-sensitive adhesive film (PSA). Each of the first adhesive member AM1 and the second adhesive member AM2 may be formed of a photocurable adhesive or a thermocurable adhesive. However, it is contemplated that the exemplary embodiments are not limited thereto or are not subject to these limitations.

[0071] Although not shown separately, the flexible display device DD may also include a support functional layer to hold... FIG. 2A The frame structure shown in the diagram represents the operational state. The frame structure may include joint structures or hinge structures.

[0072] like FIG. 3A As shown, the flexible display device DD can be bent inward by, for example, a user operation, at a determined radius of curvature BR. Alternatively, as... FIG. 3B As shown, the flexible display device DD can be bent outwards by a radius of curvature BR determined, for example, through user operation. It is also contemplated that the flexible display device DD can be bent bidirectionally according to user operation. Bidirectional bending can be performed repeatedly. The radius of curvature BR can be maintained constant. The first non-bending region NBA1 and the second non-bending region NBA2 face each other and can extend parallel to each other. The bending region BA may not be fixed in the surface area, but can be determined according to the radius of curvature BR. The user can... FIGS. 4A-4D The flexible display device DD senses images in a non-bent state.

[0073] According to one or more exemplary embodiments, the protective member PM may have a thickness of approximately 30 μm to approximately 80 μm. The window member WM may have a thickness of approximately 20 μm to approximately 150 μm (e.g., approximately 25 μm to approximately 150 μm). The display member DM may have a thickness of approximately 30 μm to approximately 50 μm. Each of the first adhesive member AM1 and the second adhesive member AM2 may have a thickness of approximately 10 μm to approximately 80 μm.

[0074] While each of the protective member PM, window member WM, and display member DM can have a thickness within one of the ranges described above, the display member DM can be configured to have a thickness smaller than the sum of the thicknesses of the protective member PM and the window member WM. The thickness of the display member DM can represent the thickness from the first display panel surface BS1-L to the second base surface BS3. Because the touch panel and optical film are integral with the display panel layer DP, the adhesive members can be omitted, thus allowing the touch sensing layer TS and the anti-reflection layer RPL to be reduced in thickness to satisfy the aforementioned conditions. Because the display member DM is reduced in thickness, the tensile / compressive stresses occurring in the display device during bending (or flexing) can be reduced.

[0075] The ratio of the sum of the thicknesses of the protective member PM and the window member WM to the thickness of the display member DM (thickness of display member DM: sum of the thicknesses of the protective member PM and the window member WM) can be approximately 1:1 to approximately 1:8. In one or more exemplary embodiments, the ratio of the sum of the thicknesses of the protective member PM and the window member WM to the thickness of the display member DM can be approximately 1:1.2 to approximately 1:4. For example, when the display member DM has a thickness of approximately 30 μm to approximately 50 μm, the sum of the thicknesses of the protective member PM and the window member WM can be approximately 60 μm to approximately 120 μm. Note that the protective member PM can have a thickness of approximately 30 μm to approximately 50 μm, and the window member WM can have a thickness of approximately 30 μm to approximately 70 μm.

[0076] The ratio between the thickness of the protective member PM and the thickness of the window member WM can be approximately 4:1 to approximately 1:5. In one or more exemplary embodiments, the ratio between the thickness of the protective member PM and the thickness of the window member WM can be approximately 5:3 to approximately 3:7. As described above, when the protective member PM has a thickness of approximately 30 μm to approximately 50 μm, the window member WM can have a thickness of approximately 30 μm to approximately 70 μm.

[0077] The ratio between the thickness of the first adhesive member AM1 and the thickness of the second adhesive member AM2 can correspond to the ratio between the thickness of the protective member PM and the thickness of the window member WM. As the thickness increases, the stress that occurs when the flexible display device DD bends increases. With repeated bending, each of the protective member PM and the window member WM will deteriorate. However, it is important to note that the first adhesive member AM1 and the second adhesive member AM2 can reduce stress to prevent deterioration of the protective member PM and the window member WM. Because the rate of reduction in stress that occurs when the flexible display device DD bends increases with the increase in the thickness of the adhesive members AM1 and AM2, the thicknesses of the first adhesive member AM1 and the second adhesive member AM2 can be set to correspond to the thicknesses of the protective member PM and the window member WM. That is, the adhesive member adjacent to the member with a large thickness can also have a large thickness.

[0078] When the ratio of the thickness of the protective member PM to the thickness of the window member WM is approximately 1:3, the ratio of the thickness of the first adhesive member AM1 to the thickness of the second adhesive member AM2 can also be approximately 1:3. When the ratio of the thickness of the protective member PM to the thickness of the window member WM is approximately 1:1, the ratio of the thickness of the first adhesive member AM1 to the thickness of the second adhesive member AM2 can also be approximately 1:1. However, it is anticipated that the ratio of the thickness of the first adhesive member AM1 to the thickness of the second adhesive member AM2 need not be the same as the ratio of the thickness of the protective member PM to the thickness of the window member WM.

[0079] The feature “the ratio between the thickness of the first adhesive member AM1 and the thickness of the second adhesive member AM2 corresponds to the ratio between the thickness of the protective member PM and the thickness of the window member WM” can be defined as having an error ranging from approximately +30% to approximately -30%. For example, when the ratio between the thickness of the protective member PM and the thickness of the window member WM is approximately 1:3, the ratio between the thickness of the first adhesive member AM1 and the thickness of the second adhesive member AM2 can be approximately 1:3.9 to approximately 1:2.1.

[0080] As mentioned earlier, the thickness of the flexible display device DD can be reduced by decreasing the number of adhesive components. When the thickness of the flexible display device DD is reduced, delamination defects in the adhesive components can be reduced even if the flexible display device DD is repeatedly bent (or flexed). In addition, when the thickness of the flexible display device DD is reduced, the flexible display device DD can be bent with a smaller radius of curvature.

[0081] FIG. 3A and FIG. 3B This is a cross-sectional view of a flexible display device in a second operating state and a third operating state according to one or more exemplary embodiments.FIGS. 4A-4D This is a cross-sectional view of a flexible display device in a first operating state according to one or more exemplary embodiments. FIGS. 1A-1C , FIGS. 2A-2C as well as FIG. 3A Flexible display devices and FIG. 3B as well as FIGS. 1A-1C Similar to flexible display devices, repeated descriptions have been omitted to avoid obscuring the exemplary embodiments described herein. Thus, the following primarily describes the differences.

[0082] Flexible display device DD' can be FIGS. 2A-2C and FIG. 2B The shape shown is curved in both directions. When... FIG. 2C as well as FIG. 4A Compared to the shape of the curved region BA in the flexible display device DD, the curved region BA' can be bent in a more circular shape to increase the surface area of ​​the curved region BA'. Furthermore, the curved region BA' can be bent in a more circular shape than in... FIG. 4B and FIG. 4A The curve shown has a large radius of curvature BR', which is bent to reduce the stress in the bent region BA'.

[0083] like FIG. 4B and FIG. 4C As shown, the stacking order of functional layers can be changed. (See reference...) FIG. 4D The touch sensing layer TS can be directly disposed on the first display panel surface BS1-L. The first adhesive member AM1 is bonded to the first base surface BS2 via the first adhesive surface AS1. The anti-reflection layer RPL can be directly disposed on the second display panel surface BS1-U. The second adhesive member AM2 is connected to the second base surface BS3 via the second adhesive surface AS2. (Refer to...) FIG. 4A The anti-reflection layer RPL can be directly disposed on the second display panel surface BS1-U. The touch sensing layer TS can be directly disposed on the second base surface BS3. The second adhesive member AM2 is connected to the first base surface BS2 through the second adhesive surface AS2.

[0084] like FIG. 4B and FIG. 4C As shown, in FIG. 4D and FIG. 4C The anti-reflection layer RPL, formed separately, can be combined with another functional layer. In this way, the anti-reflection layer can form part of the touch sensing layer TS or the display panel layer DP. (See reference...) FIG. 4D The touch sensing layer TS-R can also function as an anti-reflection layer RPL. (See reference...) FIG. 5 The DP-R layer of the display panel can also function as an anti-reflective layer (RPL). For example... FIG. 6 and FIG. 5As shown, each of the touch sensing layers TS-R and TS is directly disposed on the second display panel surface BS1-U. The first adhesive member AM1 is bonded to the first display panel surface BS1-L via the first adhesive surface AS1.

[0085] FIG. 1A It is a perspective view of a flexible display panel according to one or more exemplary embodiments. FIG. 5 It is based on one or more exemplary embodiments. FIG. 6 The equivalent circuit diagram of the pixels of the flexible display panel.

[0086] In the following text, the flexible display panel layer DP will be described as an organic light-emitting display panel layer DP. The organic light-emitting display panel layer DP includes a display area DA and a non-display area NDA on a planar surface. The second display panel surface BS1-U can be divided into a display area DA and a non-display area NDA. The display area DA and the non-display area NDA of the second display panel surface BS1-U do not need to be matched. FIG. 7 The flexible display device DD has a display area DD-DA and a non-display area DD-NDA. For example, the display area DA and the non-display area NDA of the second display panel surface BS1-U can be constructed according to the structure and / or design of the organic light-emitting display panel layer DP.

[0087] like FIG. 5 As shown, the organic light-emitting display panel layer DP includes a plurality of pixels PX disposed on the display area DA. Although the plurality of pixels PX are shown arranged in a matrix shape, the exemplary embodiments are not limited to this or are not limited thereto. The plurality of pixels PX can be arranged in any suitable shape, such as a non-matrix shape (e.g., a pantile shape).

[0088] FIG. 8A An example of the equivalent circuitry for a typical pixel PXij connected to the i-th scan line SLi and the j-th source line DLj is shown. Although not shown individually, multiple pixels PX can have the same equivalent circuitry as the typical pixel PXij. Pixel PXij includes at least two transistors TR1 and TR2, at least one capacitor CAP, and an organic light-emitting device (OLED). While a pixel driving circuit including two transistors TR1 and TR2 and a capacitor CAP is shown as an example, exemplary embodiments are not limited to the construction of said pixel driving circuit.

[0089] The anode of the OLED receives a first power supply voltage ELVDD applied to the power line PWL via a second transistor TR2. The cathode of the OLED receives a second power supply voltage ELVSS. The first transistor TR1 outputs a data signal applied to the j-th source line DLj in response to a scan signal applied to the i-th scan line SL1. The capacitor CAP changes its voltage to correspond to the data signal received from the first transistor TR1. The second transistor TR2 controls the driving current flowing through the OLED to correspond to the voltage stored in the capacitor CAP.

[0090] FIG. 8B It is based on one or more exemplary embodiments. FIG. 7 A partial plan view of a portion of an organic light-emitting display panel. FIG. 7 and FIG. 5 It is based on one or more exemplary embodiments. FIG. 8A A partial cross-sectional view of an organic light-emitting display panel.

[0091] FIG. 6 and FIG. 8B The DP-P part corresponds to the organic light-emitting display panel. FIG. 6 Is with FIG. 8A A partial cross-sectional view of the equivalent circuit, showing the portion corresponding to the first transistor TR1 and capacitor CAP. FIG. 8B Is with FIG. 7 A partial cross-sectional view of the second transistor TR2 in the equivalent circuit and the corresponding portion of the organic light-emitting device (OLED). FIG. 7 and FIG. 6 The first adhesive member AM1 and the external protective member PM, which are disposed on the first outer surface OS-L, are described separately.

[0092] like FIG. 6 As shown, the display area DA is defined as a plurality of light-emitting areas PXA-R, PXA-G and PXA-B and a non-light-emitting area NPXA on a plane defined by a first directional axis DR1 and a second directional axis DR2. FIG. 6 Examples of three types of light-emitting regions PXA-R, PXA-G, and PXA-B arranged in a matrix shape are shown. Organic light-emitting devices emitting three different colors of light can be respectively disposed on the three types of light-emitting regions PXA-R, PXA-G, and PXA-B. It is also contemplated that, in one or more exemplary embodiments, organic light-emitting devices emitting white light can be respectively disposed on the three types of light-emitting regions PXA-R, PXA-G, and PXA-B. Thus, three types of color filters with different colors can be superimposed on the three types of light-emitting regions PXA-R, PXA-G, and PXA-B.

[0093] As used herein, the feature “emitting light of a predetermined color from the light-emitting region” can include emitting light generated in the light-emitting device as is, and emitting light generated in the corresponding light-emitting device by changing its color. In one or more exemplary embodiments, the plurality of light-emitting regions PXA-R, PXA-G, and PXA-B can include four or more types of light-emitting regions.

[0094] The non-light-emitting region NPXA can be divided into a first non-light-emitting region NPXA-1 surrounding the light-emitting regions PXA-R, PXA-G, and PXA-B, and a second non-light-emitting region NPXA-2 defining the boundary of the first non-light-emitting region NPXA-1. The driving circuitry (e.g., transistors TR1 and TR2) for the pixel corresponding to each first non-light-emitting region NPXA-1 is described in [reference needed]. FIG. 6 ) or capacitor CAP (see FIG. 6 This can be set on each first non-emitting region NPXA-1. Signal lines (e.g., scan lines SLi) (see...) FIG. 8A ), source line DLj (see FIG. 8B ) and power cord PWL (see FIG. 6 The first non-luminescent region NPXA-1 and the second non-luminescent region NPXA-2 may be disposed on the second non-luminescent region NPXA-2. However, it is contemplated that the exemplary embodiments are not limited to or not limited thereto. For example, the first non-luminescent region NPXA-1 and the second non-luminescent region NPXA-2 may not be separated relative to each other.

[0095] Although not shown individually, in one or more exemplary embodiments, each of the light-emitting regions PXA-R, PXA-G, and PXA-B may have a shape similar to a rhombus. Furthermore, according to one or more exemplary embodiments, an organic light-emitting device emitting four different colors of light may be disposed on four types of light-emitting regions arranged in a repeating manner.

[0096] like FIG. 6 and FIG. 6 As shown, the organic light-emitting display panel layer DP includes a base layer SUB, a circuit layer DP-CL, an organic light-emitting device layer DP-OLED, and a thin-film encapsulation layer TFE. The circuit layer DP-CL may include multiple conductive layers and multiple insulating layers, and the organic light-emitting device layer DP-OLED may include multiple conductive layers and multiple functional organic layers. The thin-film encapsulation layer TFE may include at least one organic layer and at least one inorganic layer.

[0097] The base layer SUB may include a plastic substrate, a glass substrate, a metal substrate, or an organic / inorganic composite substrate as a flexible substrate. The base layer SUB may provide a first display panel surface BS1-L. In one or more exemplary embodiments, the base layer SUB may have a multi-layer structure. A first adhesive member AM1 is bonded to the first display panel surface BS1-L via a first adhesive surface AS1. The protective member PM may be thicker than the base layer SUB.

[0098] Semiconductor pattern AL1 (hereinafter referred to as the first semiconductor pattern) of the first transistor TR1 and semiconductor pattern AL2 (hereinafter referred to as the second semiconductor pattern) of the second transistor TR2 are disposed on the base layer SUB. The first semiconductor pattern AL1 and the second semiconductor pattern AL2 may be formed of amorphous silicon formed at a relatively low temperature. Alternatively, each of the first semiconductor pattern AL1 and the second semiconductor pattern AL2 may be formed of metal-oxide-semiconductor. Although not shown separately, a functional layer may also be disposed on the surface of the base layer SUB. The functional layer may include at least one of a barrier layer and a buffer layer. The first semiconductor pattern AL1 and the second semiconductor pattern AL2 may be disposed on either the barrier layer or the buffer layer.

[0099] A first insulating layer 12 covering the first semiconductor pattern AL1 and the second semiconductor pattern AL2 is disposed on the base layer SUB. The first insulating layer 12 may include an organic layer and / or an inorganic layer. In one or more exemplary embodiments, the first insulating layer 12 may include a plurality of inorganic thin films. The plurality of inorganic thin films may include a silicon nitride layer and a silicon oxide layer.

[0100] The control electrode GE1 of the first transistor TR1 (hereinafter referred to as the first control electrode) and the control electrode GE2 of the second transistor TR2 (hereinafter referred to as the second control electrode) are disposed on the first insulating layer 12. The first electrode E1 of the capacitor CAP is disposed on the first insulating layer 12. The first control electrode GE1, the second control electrode GE2, and the first electrode E1 can be connected to the scan line SLi (see... FIG. 8A It is manufactured using the same photolithography process. That is, the first electrode E1 can be formed from the same material as the scan line SLi.

[0101] A second insulating layer 14 covering the first control electrode GE1, the second control electrode GE2, and the first electrode E1 is disposed on the first insulating layer 12. The second insulating layer 14 includes an organic layer and / or an inorganic layer. In one or more exemplary embodiments, the second insulating layer 14 may include a plurality of inorganic thin films. The plurality of inorganic thin films may include a silicon nitride layer and a silicon oxide layer.

[0102] Source line DLj (see) FIG. 8B ) and power cord PWL (see FIG. 7The input electrode SE1 (hereinafter referred to as the first input electrode) and output electrode DE1 (hereinafter referred to as the first output electrode) of the first transistor TR1 are disposed on the second insulating layer 14. The input electrode SE2 (hereinafter referred to as the second input electrode) and output electrode DE2 (hereinafter referred to as the second output electrode) of the second transistor TR2 are disposed on the second insulating layer 14. The first input electrode SE1 branches from the source line DLj. The second input electrode SE2 branches from the power supply line PWL.

[0103] The second electrode E2 of capacitor CAP is disposed on the second insulating layer 14. The second electrode E2 can be manufactured by the same photolithography process as the source line DLj and the power line PWL, and is thus formed of the same material as the source line DLj and the power line PWL.

[0104] The first input electrode SE1 and the first output electrode DE1 are connected to the first semiconductor pattern AL1 through a first via CH1 and a second via CH2 passing through the first insulating layer 12 and the second insulating layer 14, respectively. The first output electrode DE1 can be electrically connected to the first electrode E1. For example, the first output electrode DE1 can be connected to the first electrode E1 through a via (not shown) passing through the second insulating layer 14. The second input electrode SE2 and the second output electrode DE2 are connected to the second semiconductor pattern AL2 through a third via CH3 and a fourth via CH4 passing through the first insulating layer 12 and the second insulating layer 14, respectively. According to one or more exemplary embodiments, at least one of the first transistor TR1 and the second transistor TR2 can be formed as a bottom-gate structure.

[0105] A third insulating layer 16 covering the first input electrode SE1, the first output electrode DE1, the second input electrode SE2, and the second output electrode DE2 is disposed on the second insulating layer 14. The third insulating layer 16 includes an organic layer and / or an inorganic layer. In one or more exemplary embodiments, the third insulating layer 16 may be formed of an organic material to provide a flat surface.

[0106] The pixel-defining layer PXL and the organic light-emitting device (OLED) are disposed on the third insulating layer 16. The opening OP is defined in the pixel-defining layer PXL. The pixel-defining layer PXL may be another insulating layer. FIG. 7 and FIG. 7 The opening OP can be with FIG. 5 The openings OP-R, OP-G, and OP-B correspond.

[0107] The anode AE ​​of the organic light-emitting OLED is connected to the second output electrode DE2 through a fifth via CH5 passing through the third insulating layer 16. An opening OP in the pixel-defining layer PXL exposes at least a portion of the anode AE. The hole control layer HCL can be commonly defined in the light-emitting regions PXA-R, PXA-G, and PXA-B (see...). FIG. 5 ) and the non-luminescent region NPXA (see FIGS. 9A-9C In the process, an organic light-emitting layer (EML) and an electron control layer (ECL) are sequentially formed on a hole control layer (HCL). The hole control layer (HCL) includes at least one hole transport layer, and the electron control layer (ECL) includes at least one electron transport layer. Subsequently, a cathode (CE) can be formed concurrently on the light-emitting regions PXA-R, PXA-G, and PXA-B, and the non-light-emitting region NPXA. The cathode (CE) can be formed by deposition or sputtering processes depending on its stack-up structure.

[0108] A thin-film encapsulation layer TFE is disposed on the cathode CE of a DP-OLED. The thin-film encapsulation layer TFE protects the OLED from moisture and impurities. In one or more exemplary embodiments, the thin-film encapsulation layer TFE provides a second display panel surface BS1-U. In one or more exemplary embodiments, a buffer layer (not shown) may be disposed on the thin-film encapsulation layer TFE, thereby providing the second display panel surface BS1-U.

[0109] According to one or more exemplary embodiments, the light-emitting region PXA may be defined as a region that emits light. The light-emitting region PXA may be defined to correspond to the cathode AE ​​or the light-emitting layer EML of an organic light-emitting device (OLED). Although a patterned organic light-emitting layer EML is shown as an example, the organic light-emitting layer EML may be commonly disposed in the non-light-emitting region NPXA (see [example description]). FIG. 9A ) and the luminescent regions PXA-R, PXA-G and PXA-B (see FIG. 9B On top of that, the organic light-emitting layer (EML) can emit white light.

[0110] FIG. 9C This is a cross-sectional view of a thin film encapsulation layer according to one or more exemplary embodiments. (Refer to...) FIG. 9A , FIG. 8B and FIG. 9B The thin film encapsulation layers TFE1, TFE2 and TFE3 are described respectively.

[0111] According to one or more exemplary embodiments, the thin-film encapsulation layer may include at least two inorganic thin films and an organic thin film disposed between the at least two inorganic thin films. The inorganic thin films protect the organic light-emitting device (OLED) from moisture, and the organic thin films protect the OLED from impurities such as dust particles.

[0112] like FIG. 9C As shown, the thin film encapsulation layer TFE1 may include a cathode CE (see Figure 1). FIG. 9B The first inorganic thin film IOL1 is in contact with n (n is a natural number) inorganic thin films IOL1 to IOLn. The first inorganic thin film IOL1 can be defined as the lower inorganic thin film, and the inorganic thin films among the n inorganic thin films IOL1 to IOLn other than the first inorganic thin film IOL1 can be defined as the upper inorganic thin film. The film encapsulation layer TFE1 includes n organic thin films OL1 to OLn. The n organic thin films OL1 to OLn and the n inorganic thin films IOL1 to IOLn can be arranged alternately relative to each other. The uppermost layer can be an organic layer or an inorganic layer. Each of the n organic thin films OL1 to OLn can generally have a thickness greater than that of each of the inorganic thin films IOL1 to IOLn.

[0113] In one or more exemplary embodiments, each of the n inorganic thin films IOL1 to IOLn may have a single-layer structure formed of one material or a multilayer structure formed of different materials. Each of the n organic thin films OL1 to OLn may be formed by depositing an organic monomer. The organic monomer may be an acrylic monomer.

[0114] like FIG. 9C and FIG. 10A As shown, the inorganic films of each of the film encapsulation layers TFE2 and TFE3 can be formed from the same inorganic material or different inorganic materials, and can have the same thickness or different thicknesses. Similarly, the organic films of each of the film encapsulation layers TFE2 and TFE3 can be formed from the same organic material or different organic materials, and can have the same thickness or different thicknesses.

[0115] Reference FIG. 10B The thin film encapsulation layer TFE2 may include a first inorganic thin film IOL1, a first organic thin film OL1, a second inorganic thin film IOL2, a second organic thin film OL2, and a third inorganic thin film IOL3 stacked on top of each other in sequence. The first inorganic thin film IOL1 may have a two-layer structure. The first sublayer S1 may be a lithium fluoride layer, and the second sublayer S2 may be an alumina layer. The first organic thin film OL1 may be a first organic monomer layer, the second inorganic thin film IOL2 may be a first silicon nitride layer, the second organic thin film OL2 may be a second organic monomer layer, and the third inorganic thin film IOL3 may be a second silicon nitride layer.

[0116] like FIG. 10CAs shown, the thin film encapsulation layer TFE3 may include a first inorganic thin film IOL10, a first organic thin film OL1, and a second inorganic thin film IOL20 stacked sequentially on top of each other. The first inorganic thin film IOL10 may have a two-layer structure. The first sublayer S10 may be a lithium fluoride layer, and the second sublayer S20 may be a silicon oxide layer. The first organic thin film OL1 may be an organic monomer layer, and the second inorganic thin film IOL20 may have a two-layer structure. The second inorganic thin film IOL20 may include a first sublayer S100 and a second sublayer S200 deposited under different deposition environments. The first sublayer S100 may be deposited under low power conditions, and the second sublayer S200 may be deposited under high power conditions. Each of the first sublayer S100 and the second sublayer S200 may be a silicon nitride layer.

[0117] FIGS. 10A-10C , FIG. 10A and FIG. 10A This is a cross-sectional view of a display device according to one or more exemplary embodiments. For ease of illustration and description, the anti-reflection layer RPL is shown as a single layer, and only a portion of the display panel layer DP is shown. FIG. 10B As shown, the touch sensing layer TS may include a first conductive layer TS-CL1, a first touch insulating layer TS-IL1, a second conductive layer TS-CL2, and a second touch insulating layer TS-IL2.

[0118] Each of the first conductive layer TS-CL1 and the second conductive layer TS-CL2 may have a single-layer structure or a multilayer structure with multiple layers stacked on a third directional axis DR3. The conductive layer with a multilayer structure may include a transparent conductive layer and at least one metal layer. The conductive layer with a multilayer structure may include metal layers formed of metals different from each other. The transparent conductive layer may be formed of indium tin oxide (ITO), indium zinc oxide (IZO), zinc oxide (ZnO), indium tin zinc oxide (ITZO), PEDOT, metal nanowires, and graphene. The metal layer may be formed of at least one of molybdenum, silver, titanium, copper, aluminum, and alloys thereof.

[0119] Each of the first conductive layer TS-CL1 and the second conductive layer TS-CL2 may include multiple patterns. The structure of the first conductive layer TS-CL1 including a first conductive pattern and the second conductive layer TS-CL2 including a second conductive pattern will be described below. Each of the first and second conductive patterns may include a touch electrode and a touch signal line.

[0120] According to one or more exemplary embodiments, each of the first touch insulating layer TS-IL1 and the second touch insulating layer TS-IL2 may be formed of an inorganic or organic material. Inorganic materials may include silicon oxide or silicon nitride. Organic materials may include at least one of acrylic resins, methacrylic resins, polyisoprene resins, vinyl resins, epoxy resins, polyurethane resins, cellulose resins, and perylene resins. If the first touch insulating layer TS-IL1 insulates the first conductive layer TS-CL1 and the second conductive layer TS-CL2 from each other, the exemplary embodiments may not be limited to the shape of the first touch insulating layer TS-IL1. The first touch insulating layer TS-IL1 may be deformable according to the shapes of the first conductive pattern and the second conductive pattern. The first touch insulating layer TS-IL1 may completely cover the second display panel surface BS1-U, which will be described in more detail later, or may include multiple insulating patterns.

[0121] like FIG. 10C As shown, the first conductive layer TS-CL1 can be disposed on the thin film encapsulation layer TFE. That is, the thin film encapsulation layer TFE provides a second display panel surface BS1-U on which the touch sensing layer TS is disposed.

[0122] When with FIG. 11A Compared to the display panel layer DP, FIG. 11B The display panel layer DP1 may further include a buffer layer BFL disposed on the thin film encapsulation layer TFE. Thus, the buffer layer BFL provides the second display panel surface BS1-U. In one or more exemplary embodiments, the buffer layer BFL may be an organic layer and may be formed of different materials depending on the function performed by the buffer layer BFL. The buffer layer BFL may be an organic / inorganic layer whose refractive index matches that of a surrounding layer or color filter layer used to reduce reflection of external light.

[0123] Reference FIG. 12A The first conductive layer TS-CL1 can be disposed on the surface BS1-L of the first display panel. The first touch insulating layer TS-IL1 is disposed on the first conductive layer TS-CL1, the second conductive layer TS-CL2 is disposed on the first touch insulating layer TS-IL1, and the second touch insulating layer TS-IL2 is disposed on the second conductive layer TS-CL2.

[0124] FIG. 11A and FIG. 12B This is a plan view showing the conductive layers TS-CL1 and TS-CL2 of a touch detection component TS according to one or more exemplary embodiments. FIG. 12C It is based on one or more exemplary embodiments. FIG. 12A A magnified view of region AA. FIG. 13A and FIG. 11BThese are sections taken along section lines I-I' and II-II' respectively, according to one or more exemplary embodiments. FIG. 13B A partial sectional view. FIG. 13C It is based on one or more exemplary implementations. FIG. 13A A magnified view of a portion of region BB. FIG. 14A and FIG. 11B These are sections taken along sections III-III' and IV-IV' respectively, according to one or more exemplary embodiments. FIG. 14B A partial sectional view. FIG. 14A It is based on one or more exemplary embodiments. FIG. 11A A magnified view of a portion of region CC. FIG. 11B It is a section taken along the cross-section line V-V' according to one or more exemplary embodiments. FIGS. 12A-12C A partial sectional view. Note that it will be combined with... FIGS. 13A-13C , FIG. 14A , FIG. 14B , FIG. 12B , FIG. 12C and FIG. 13B This section primarily explains and describes the touch sensing layer TS and the display panel layer DP, which constitute the display module. For this purpose, the circuit layer DP-CL is schematically shown and will be combined with... FIG. 13C , FIG. 14B , FIG. 11A , FIGS. 10A-10C and FIG. 11B To describe.

[0125] According to one or more exemplary embodiments, a two-layer capacitive touch detection component is illustrated as an example. The two capacitive touch sensing layers can obtain coordinate information at the touch point (or hovering touch interaction) in a self-capacitance manner or a mutual capacitance manner. However, the exemplary embodiments are not limited to or are not limited by the driving method used to obtain the coordinate information. FIGS. 10A-10C The first conductive pattern can be with FIG. 11A The first conductive layer TS-CL1 corresponds to FIG. 11A The second conductive pattern can be with FIG. 11B The second conductive layer TS-CL2 corresponds to this.

[0126] like FIG. 11B As shown, the first conductive pattern may include first touch electrodes TE1-1 to TE1-3 and first touch signal lines SL1-1 to SL1-3. FIG. 11AThe diagram shows three first touch electrodes TE1-1 to TE1-3 and three first touch signal lines SL1-1 to SL1-3 respectively connected to the three first touch electrodes TE1-1 to TE1-3. However, it is contemplated that any suitable number of first touch electrodes and first touch signal lines can be utilized in conjunction with the exemplary embodiments described herein.

[0127] First touch electrodes TE1-1 to TE1-3 extend along a first direction DR1 and are arranged in a second direction DR2. Each of the first touch electrodes TE1-1 to TE1-3 may have a grid shape defining a plurality of touch openings. The grid shape will be described in more detail later. Each of the first touch electrodes TE1-1 to TE1-3 includes a plurality of first sensing portions SP1 and a plurality of first connecting portions CP1. The first sensing portions SP1 are arranged in the first direction DR1. Each first connecting portion CP1 connects two adjacent first sensing portions SP1. Although not shown, each of the first touch signal lines SL1-1 to SL1-3 may also have a grid shape. The first touch signal lines SL1-1 to SL1-3 may have the same stacked structure as the first touch electrodes TE1-1 to TE1-3.

[0128] Reference FIG. 11B The second conductive pattern may include second touch electrodes TE2-1 to TE2-3 and second touch signal lines SL2-1 to SL2-3. FIG. 12A The diagram illustrates three second touch electrodes TE2-1 to TE2-3 and three second touch signal lines SL2-1 to SL2-3 respectively connected to the three second touch electrodes TE2-1 to TE2-3. However, it is contemplated that any suitable number of second touch electrodes and second touch signal lines can be utilized in conjunction with the exemplary embodiments described herein. The second touch electrodes TE2-1 to TE2-3 are insulated from and intersect with the first touch electrodes TE1-1 to TE1-3. Each of the second touch electrodes TE2-1 to TE2-3 may have a grid shape defining a plurality of touch openings.

[0129] Each of the second touch electrodes TE2-1 to TE2-3 includes a plurality of second sensing portions SP2 and a plurality of second connecting portions CP2. The second sensing portions SP2 are arranged in the second direction DR2. Each second connecting portion CP2 connects two adjacent second sensing portions SP2. Although not shown, each of the second touch signal lines SL2-1 to SL2-3 may also have a grid shape. The second touch signal lines SL2-1 to SL2-3 may have the same stacked structure as the second touch electrodes TE2-1 to TE2-3.

[0130] According to one or more exemplary embodiments, the first touch electrodes TE1-1 to TE1-3 and the second touch electrodes TE2-1 to TE2-3 are capacitively coupled to each other. Because a touch detection signal is applied to the first touch electrodes TE1-1 to TE1-3, a capacitor is formed (or disposed) between the first sensing unit SP1 and the second sensing unit SP2. FIG. 12B and FIG. 12C The shapes of the first touch electrodes TE1-1 to TE1-3 and the second touch electrodes TE2-1 to TE2-3, respectively, of the respective sensing portions and their respective connecting portions are merely examples, and thus, the exemplary embodiments are not limited thereto or are not subject to such limitations. For example, the connecting portion may be defined simply as the portion where the first touch electrodes TE1-1 to TE1-3 and the second touch electrodes TE2-1 to TE2-3 intersect each other, and the sensing portion may be defined simply as the portion where the first touch electrodes TE1-1 to TE1-3 and the second touch electrodes TE2-1 to TE2-3 overlap each other. In one or more exemplary embodiments, each of the first touch electrodes TE1-1 to TE1-3 and the second touch electrodes TE2-1 to TE2-3 may include a strip shape with a defined width.

[0131] like FIG. 12B As shown, the first sensing unit SP1 is superimposed on the non-light-emitting region NPXA. The first sensing unit SP1 includes a plurality of first vertical portions SP1-C extending along a first direction DR1 and a plurality of first horizontal portions SP1-L extending along a second direction DR2. The plurality of first vertical portions SP1-C and the plurality of first horizontal portions SP1-L can be defined as grid lines. Each grid line can have a linewidth of a few micrometers.

[0132] Multiple first vertical portions SP1-C and multiple first horizontal portions SP1-L can be connected to each other to define multiple touch openings TS-OP. That is, the first sensing portion SP1 can have a grid shape including multiple touch openings TS-OP. Although the touch openings TS-OP are shown to have a structure that corresponds one-to-one with the light-emitting areas PXA, the exemplary embodiments are not limited to this or are not limited thereto. For example, the touch openings TS-OP may correspond to two or more light-emitting areas PXA.

[0133] like FIGS. 13A-13C and FIG. 13B As shown, the first touch insulating layer TS-IL1 is superimposed on the display area DA and the non-display area NDA. The first touch insulating layer TS-IL1 is disposed on the surface BS1-U of the second display panel to cover the first sensing part SP1 (the first horizontal part SP1-L is located on the surface of the second display panel). FIG. 14A(As shown, it is covered by a first touch insulating layer TS-IL1). Although not shown separately, the first touch insulating layer TS-IL1 may cover the first connection portion CP1 and the first touch signal lines SL1-1 to SL1-3. In one or more exemplary embodiments, the second display panel surface BS1-U is provided by a thin film encapsulation layer TFE. The second touch insulating layer TS-IL2 is disposed on the first touch insulating layer TS-IL1 to overlap with the display area DA and the non-display area NDA. The second touch insulating layer TS-IL2 provides a first base surface BS2.

[0134] Reference FIG. 14B A second sensing element SP2 is disposed on the first touch insulating layer TS-IL1. The second sensing element SP2 is superimposed on the non-light-emitting area NPXA. The second sensing element SP2 includes a plurality of second vertical portions SP2-C extending along the first direction DR1 and a plurality of second horizontal portions SP2-L extending along the second direction DR2. The plurality of second vertical portions SP2-C and the plurality of second horizontal portions SP2-L can be connected to each other to define a plurality of touch openings TS-OP. That is, the second sensing element SP2 has a grid shape. The second touch insulating layer TS-IL2 is disposed on the first touch insulating layer TS-IL1 to cover the second sensing element SP2. FIG. 11A As seen, the second vertical portion SP2-C is shown to be covered by the second touch insulating layer TS-IL2. Although not shown separately, the second touch insulating layer TS-IL2 may cover the second connection portion CP2 and the second touch signal lines SL2-1 to SL2-3.

[0135] FIG. 11B and FIG. 14A Show FIG. 14B and FIG. 15A The stacked portion of the conductive layers. For example... FIG. 15B and FIG. 15C As shown, the first connecting portion CP1 may include third vertical portions CP1-C1 and CP1-C2 disposed on the thin film encapsulation layer TFE, and a third horizontal portion CP1-L connecting the third vertical portions CP1-C1 and CP1-C2 to each other. Although two third vertical portions CP1-C1 and CP1-C2 are shown, the exemplary embodiments are not limited thereto. The second connecting portion CP2 may include fourth horizontal portions CP2-L1 and CP2-L2 disposed on the first touch insulating layer TS-IL1, and a fourth vertical portion CP2-C connecting the fourth horizontal portions CP2-L1 and CP2-L2 to each other. The first connecting portion CP1 may have a grid shape, and the second connecting portion CP2 may also have a grid shape. Although two fourth horizontal portions CP2-L1 and CP2-L2 are shown, the exemplary embodiments are not limited thereto.

[0136] As described above, because each of the first touch electrodes TE1-1 to TE1-3 and the second touch electrodes TE2-1 to TE2-3 has a grid shape, and multiple touch openings are defined in the first touch insulating layer TS-IL1 and the second touch insulating layer TS-IL2, the flexibility of the flexible display device DD can be improved. When the flexible display device DD is bent, the tensile / compressive stresses applied to the first touch electrodes TE1-1 to TE1-3 and the second touch electrodes TE2-1 to TE2-3 can be reduced, which can prevent (or at least reduce) the possibility of touch electrode breakage.

[0137] FIG. 15B and FIG. 15D This is a plan view illustrating the conductive layer of a touch detection component according to one or more exemplary embodiments. FIG. 15C It is based on one or more exemplary embodiments. FIG. 15D A magnified view of region CC in the image. FIGS. 15A-15D It is a section taken along section line VI-VI' according to one or more exemplary embodiments. FIG. 11A A partial cross-sectional view. Note that the circuit layer DP-CL is in... FIG. 11B As shown in the image. Furthermore, it should be noted that in... FIG. 14A The structure shown in the figure is similar to FIG. 14B , FIG. 15A , FIGS. 10A-10C and FIG. 15B The structures are similar, so repeated descriptions have been omitted to avoid making the exemplary embodiments described herein unclear. Therefore, the differences will be described primarily below.

[0138] According to one or more exemplary embodiments, a single-layer capacitive touch detection component is shown. The single-layer capacitive touch detection component can be driven in a self-capacitive manner. However, it is contemplated that the exemplary embodiments are not limited to, or not restricted to, the driving method used to obtain coordinate information related to touch event detection. In one or more exemplary embodiments, FIGS. 10A-10C The first conductive pattern can be with FIG. 15A The first conductive layer TS-CL1 corresponds to FIGS. 10A-10C The second conductive pattern can be with FIG. 15B The second conductive layer TS-CL2 corresponds to this. In one or more exemplary embodiments, FIGS. 10A-10C The first conductive pattern can be with FIG. 15A The second conductive layer TS-CL2 corresponds to, FIG. 15B The second conductive pattern can be with FIG. 15C The first conductive layer TS-CL1 corresponds to this.

[0139] like FIG. 15DAs shown, the first conductive pattern may include first touch electrodes TE1-1 to TE1-3, first touch signal lines SL1-1 to SL1-3, second sensing portions SP2' of second touch electrodes TE2-1' to TE2-3', and second touch signal lines SL2-1 to SL2-3. Each of the first touch electrodes TE1-1 to TE1-3 includes multiple first sensing portions SP1 and multiple first connecting portions CP1. FIG. 15B As shown, the second conductive pattern may include multiple second connection portions CP2' of the second touch electrodes TE2-1' to TE2-3'. Each second connection portion CP2' may have a bridging function.

[0140] Reference FIGS. 11A-15D and FIG. 15D The second connecting portion CP2' electrically connects two adjacent second sensing portions SP2' in the second direction DR2 via a first through-hole TS-CH1 and a second through-hole TS-CH2 passing through the first touch insulating layer TS-IL1. In one or more exemplary embodiments, the plane of the first touch insulating layer TS-IL1 may be modified in shape. The first touch insulating layer TS-IL1 may not cover the entire display area DA. For example, the first touch insulating layer TS-IL1 may only connect with... FIG. 15D The multiple second connecting portions CP2' are stacked. Additionally, the first touch insulating layer TS-IL1 may include multiple insulating patterns configured to correspond to the multiple second connecting portions CP2'.

[0141] According to one or more exemplary embodiments, the conductive pattern of the touch detection component TS is shown in... FIG. 16A In the middle. Exemplary embodiments of the touch detection component TS are not limited to 11A to FIG. 16B The touch detection component TS shown in the figure is configured or not subject to the conditions in 11A to FIG. 16C The touch detection component TS shown in the figure has structural limitations. For example, the touch detection component TS may also include a noise shielding pattern for reducing noise and a dummy pattern for improving optical balance.

[0142] FIG. 16D , ​ , ​ , ​ , FIG. 16E , FIG. 16F and FIG. 16G This is a cross-sectional view of a display device according to one or more exemplary embodiments. Note that the display member DM, the second adhesive member AM2, and the window member WM, which constitute various configurations of the display device, are shown. FIGS. 16A-16G Display device and FIGS. 1A-15DThe display devices are similar, so repeated descriptions will be omitted to avoid making the exemplary embodiments described herein unclear. Therefore, the differences will be described primarily below.

[0143] FIG. 16A and FIG. 16B They are respectively along FIG. 12A The cross-sectional view is taken by section lines I-I' and II-II'. An anti-reflection layer RPL' is disposed on the first base surface BS2. The anti-reflection layer RPL' includes black matrices BM-P1 and BM-P2 and a color filter CF. Black matrices BM-P1 and BM-P2 are overlaid with the non-emitting area NPXA and the non-display area NDA, and the color filter CF is overlaid with the emitting area PXA. Black matrices BM-P1 and BM-P2 and the color filter CF can define a second base surface BS3.

[0144] In one or more exemplary embodiments, the color filter CF may include multiple sets of color filters. For example, the color filter CF may include a red color filter, a green color filter, and a blue color filter. The color filter CF may include a gray color filter. However, it is contemplated that any suitable color for the color filter CF can be utilized in conjunction with the exemplary embodiments described herein.

[0145] Black matrices BM-P1 and BM-P2 can be formed of materials capable of blocking light. Black matrices BM-P1 and BM-P2 prevent light emitted from the organic light-emitting device (OLED) from mixing with each other and absorb externally incident light (hereinafter referred to as external light). For example, each of black matrices BM-P1 and BM-P2 can be formed of an organic material with relatively high light absorption. Each of black matrices BM-P1 and BM-P2 can include a black pigment or black dye. Each of black matrices BM-P1 and BM-P2 can include a photosensitive organic material, such as a colorant like a pigment or dye. Each of black matrices BM-P1 and BM-P2 can have a single-layer or multi-layer structure.

[0146] A color filter (CF) allows light emitted from an organic light-emitting device (OLED) to pass through while reducing the reflectivity of external light. External light can pass through the color filter CF, thus reducing its intensity by approximately one-third. A portion of the light passing through the color filter CF can dissipate, while another portion is reflected by the components of the display device positioned beneath the color filter CF (e.g., the OLED layer and the thin-film encapsulation layer TFE). The reflected light can then re-enter the color filter CF. The brightness (or intensity) of the reflected light decreases as it passes through the color filter CF. In this way, only a portion of the external light can be reflected from the display device. That is, the reflectivity of external light is reduced.

[0147] The black matrices BM-P1 and BM-P2 include a light-shielding portion BM-P1 superimposed on the non-emitting region NPXA and a bezel portion BM-P2 superimposed on the non-display region NDA. The light-shielding portion BM-P1 has a first thickness TH1, and the bezel portion BM-P2 has a second thickness TH2 greater than the first thickness TH1. The bezel portion BM-P2 has a higher light-shielding efficiency than the light-shielding portion BM-P1. The light-shielding portion BM-P1 may only have a thickness sufficient to prevent the colors of light generated from the emitting region PXA from mixing with each other. However, the bezel portion BM-P2 may have a higher light-shielding ratio, thereby allowing the first touch signal lines SL1-1 to SL1-3 (see...) to have a higher light-shielding ratio. FIG. 11A ) and the second touch signal lines SL2-1 to SL2-3 (see FIG. 11B It is not recognized (or perceived) by the user. In this way, the frame part BM-P2 can have a greater thickness than the light shielding part BM-P1.

[0148] According to one or more exemplary embodiments, the light-shielding portion BM-P1 and the border portion BM-P2 may be integrally formed with each other. A pre-black matrix layer may be formed on the first base surface BS2 and patterned to remove the area where the color filter CF will be formed and to partially remove the area where the light-shielding portion BM-P1 will be formed opposite to the border portion BM-P2. The pre-black matrix layer may gradually decrease in thickness according to various regions to form an integral black matrix with different thicknesses in various regions. However, it is contemplated that the exemplary embodiments are not limited to or not limited thereto. For example, the light-shielding portion BM-P1 and the border portion BM-P2 may have the same thickness.

[0149] The second adhesive component AM2 is directly disposed on the second base surface BS3. The second adhesive component AM2 is bonded to the second base surface BS3 through the second adhesive surface AS2.

[0150] The window member WM includes a base film WBF, a hard coating layer WHCL, and a functional coating layer WFL. In one or more exemplary embodiments, the base film WBF may be bonded to the second adhesive surface AS2 of the second adhesive member AM2. The base film WBF may be a plastic film formed from at least one of polyimide resins, acrylic resins, methacrylic resins, isoprene resins, vinyl resins, epoxy resins, polyurethane resins, cellulose resins, and perylene resins. The material forming the base film WBF is not limited to plastic resins. For example, the base film WBF may be formed from an organic / inorganic composite material. The base film WBF may include a porous organic layer and an inorganic material filling the pores of the organic layer.

[0151] The hard coating layer WHCL increases the rigidity of the window member WM. The hard coating layer WHCL may include a silicone polymer. However, it is contemplated that the exemplary embodiments are not limited to or not restricted to the materials used for the hard coating layer, but may include any suitable hard coating material. Although not shown, the functional coating layer WFL may include a fingerprint layer, a reflection-preventing layer, and a self-healing layer. In one or more exemplary embodiments, one of the hard coating layer WHCL and the functional coating layer WFL may be omitted or multiple layers may be used. It is also contemplated that the stacking order of the base film WBF, the hard coating layer WHCL, and the functional coating layer WFL may be varied.

[0152] According to one or more exemplary embodiments, each of the hard coating layer WHCL and the functional coating layer WFL can be formed on the base film WBF by coating or printing. It is also contemplated that each of the hard coating layer WHCL and the functional coating layer WFL can be formed by roller coating, screen coating, spin coating, and / or slot coating.

[0153] FIGS. 16C-16E It is according to one or more exemplary embodiments along FIG. 12A The sectional view taken by section line II-II'. FIGS. 16C-16E Display device and FIGS. 16A-16B The display devices are similar, so repeated descriptions will be omitted to avoid making the exemplary embodiments described herein unclear. Therefore, the following will primarily describe the differences. For example, FIGS. 16C-16E Anti-reflection layer and FIG. 16A and FIG. 16B The reflection prevents differences between layers.

[0154] like FIG. 16C As shown, the border portion BM-P2' may include multiple layers. FIG. 16C An example of a three-layer frame portion BM-P2' is shown. The bottom layer of the multi-layered structure can have a shape integral with the light shielding portion BM-P1. A first initial layer can be formed, and then patterned to form the first layer (bottom layer). A second initial layer and a third initial layer can be formed, and then patterned to form the second and third layers sequentially. The first to third initial layers can be formed sequentially, and then patterned differently depending on the region to form a three-layered frame portion BM-P2' and a single-layered light shielding portion BM-P1.

[0155] According to one or more exemplary embodiments, the first to third layers may be formed of the same material or different materials from each other. The first layer may include black pigment or black dye, and each of the second and third layers may include colored pigment or dye having a color different from black. The second and third layers may include pigments or dyes having the same color as each other. The second layer may be a decorative layer providing a geometric pattern such as hairline or woven patterns. The decorative layer may increase the aesthetic appeal of the display device. The third layer may be an optical layer capable of adjusting the reflectivity or reflected wavelength of external light.

[0156] Reference FIG. 16D The black matrices BM-P1' and BM-P2" are stacked with the non-emitting region NPXA, and the color filters CF' are stacked with the emitting region PXA. The color filters CF' can be partially stacked with the non-emitting region NPXA. The color filters CF' can be disposed on the first base surface BS2, and then the black matrices BM-P1' and BM-P2" can be formed. The color filters CF' and the black matrices BM-P1' and BM-P2" can be formed by photolithography. Each of the black matrices BM-P1' and BM-P2" can have a height greater than that of each color filter CF'.

[0157] Reference FIG. 16E The black matrices BM-P1" and BM-P2"' are superimposed on the non-emitting region NPXA, and the color filters CF" are superimposed on the emitting region PXA. The color filters CF" can be partially superimposed on the non-emitting region NPXA. The black matrices BM-P1" and BM-P2"' can be set on the first base surface BS2, and then the color filters CF" can be formed. Each color filter CF" can have a height higher than the black matrix BM-P1"' and a height lower than the height of BM-P2"'.

[0158] like FIG. 16D and FIG. 16E As shown, each of the light-shielding portions BM-P1' and BM-P1" and the border portions BM-P2" and BM-P2"' can have inclined sides. The light-shielding portions BM-P1' and BM-P1" include first sides SS1 and SS1' facing each other in the first direction DR1. The border portions BM-P2" and BM-P2"' include inclined second sides SS2 and SS2'. Because the black matrix is ​​formed directly on the first base surface BS2 by photolithography, the sides SS1, SS1', SS2, and SS2' can be inclined. The shapes of the sides SS1, SS1', SS2, and SS2' can be changed according to the manufacturing order of the black matrices BM-P1', BM-P1", BM-P2", and BM-P2"' and the color filters CF' and CF"'.

[0159] like FIG. 16DAs shown, the portions of sides SS1 and SS2 exposed by the color filter CF' can be angled. Unlike the accompanying figure, the angles of the exposed portions of sides SS1 and SS2 can differ from each other. (Refer to...) FIG. 16E Sides SS1' and SS2' can have the same angle of inclination overall. However, it should be noted that while sides SS1' and SS2' are shown as having a uniform angle of inclination, this is merely an example. In one or more exemplary embodiments, the angles of inclination of sides SS1' and SS2' can differ from each other.

[0160] like FIG. 16D and FIG. 16E As shown, the bottom surface (the surface that contacts the second touch insulating layer TS-IL2) of each of the light shielding portions BM-P1' and BM-P1" and the frame portions BM-P2" and BM-P2"' can have a width greater than the width of its top surface (another surface opposite the surface that contacts the second touch insulating layer TS-IL2). The width is measured in the first direction DR1.

[0161] FIG. 16F and FIG. 16G It is according to one or more exemplary embodiments along FIG. 12A The sectional view taken by section line II-II'. FIG. 16F and FIG. 16G Display device and FIGS. 16A-16E The display devices are similar, so redundant descriptions will be omitted to avoid making the exemplary embodiments described herein unclear. Therefore, the following will primarily describe the differences. For example, the main description will focus on... FIG. 16F and FIG. 16G Window components and anti-reflection layer with FIGS. 16A-16E The difference between the window components and the reflection prevention layer.

[0162] like FIG. 16F As shown, the light-shielding portion BM-P1” and the frame portion BM-P2”” have the same thickness. The window member WM' may also include an edge black matrix WBM directly disposed on the second adhesive surface AS2'. The edge black matrix WBM may be superimposed on the non-display area NDA. The edge black matrix WBM may complement the frame portion BM-P2”’ to reduce the reflectivity of external light on the non-display area NDA.

[0163] Reference FIG. 16G The border part BM-P2 can be omitted. Here, the edge black matrix WBM' can have a larger value than... FIG. 16F The thickness is large. However, it is contemplated that the exemplary embodiments are not limited to or not restricted by the layer structure and shape of the edge black matrix WBM'. For example, the edge black matrix WBM' may have a thickness similar to that of the reference. FIGS. 16A-16EThe layer structure and shape of the described border section are the same as those of the layer structure and shape.

[0164] FIGS. 17A-17D It is a cross-sectional view of a display device according to one or more exemplary embodiments. FIGS. 17A-17D Display device and FIGS. 1A-16G The display devices are similar, so repeated descriptions will be omitted to avoid making the exemplary embodiments described herein unclear. Therefore, the following will primarily describe the differences. Note that... FIG. 17A and FIG. 17C It is along FIG. 12A The sectional view taken by section line I-I', and FIG. 17B and FIG. 17D It is along FIG. 12A The cross-sectional view is taken from section line II-II'. It shows the various components of the display device, including the display member DM, the second adhesive member AM2, and the window member WM. For ease of explanation and description, the window member WM is shown as a single layer.

[0165] like FIG. 17A and FIG. 17B As shown, the anti-reflection layer RPL may include a first metal-containing layer ML1 and a second metal-containing layer ML2, as well as a first dielectric layer IL1 and a second dielectric layer IL2. Each of the first metal-containing layer ML1 and the second metal-containing layer ML2 is superimposed on the display area DA and the non-display area NDA, respectively, and each of the first dielectric layer IL1 and the second dielectric layer IL2 is superimposed on the display area DA and the non-display area NDA, respectively. The anti-reflection layer RPL including the first metal-containing layer ML1 and the second metal-containing layer ML2, as well as the first dielectric layer IL1 and the second dielectric layer IL2, is shown only as an example. It is contemplated that any suitable number of metal-containing layers and any suitable number of dielectric layers can be utilized in conjunction with the exemplary embodiments described herein.

[0166] According to one or more exemplary embodiments, a first metal-containing layer ML1 and a second metal-containing layer ML2, as well as a first dielectric layer IL1 and a second dielectric layer IL2, are stacked alternately with respect to each other. However, the exemplary embodiments are not limited to the stacking order shown. The first metal-containing layer ML1 may comprise a metal having an absorptivity of about 30% or more. The first metal-containing layer ML1 may be formed of a material having a refractive index of about 1.5 to about 7 and an absorption coefficient k of about 1.5 to about 7. The first metal-containing layer ML1 may be formed of at least one of chromium (Cr), molybdenum (Mo), tungsten (W), titanium (Ti), nickel (Ni), cobalt (Co), copper oxide (CuO), titanium nitride (TiNx), and nickel sulfide (NiS). The first metal-containing layer ML1 may be a metal layer formed of one or more of the aforementioned materials, and the second metal-containing layer ML2 may also be a metal layer formed of one or more of the aforementioned materials.

[0167] In one or more exemplary embodiments, each of the first dielectric layer IL1 and the second dielectric layer IL2 may be made of silicon dioxide (SiO2), titanium dioxide (TiO2), lithium fluoride (LiF), calcium fluoride (CaF2), magnesium fluoride (MgF2), silicon nitride (SiN). x ), tantalum oxide (Ta2O5), niobium oxide (Nb2O5), silicon carbide (SiCN), molybdenum oxide (MoO) x ), iron oxide (FeO) x ) and chromium oxide (CrO) x It is formed by selecting one of the groups consisting of ). The light OL incident from the outside is partially reflected by the first metal-containing layer ML1 (hereinafter referred to as the first reflected light RL1) and partially reflected by the second metal-containing layer ML2 (hereinafter referred to as the second reflected light RL2).

[0168] The first dielectric layer IL1 can adjust the phase of the light passing through it, so that the first reflected light RL1 and the second reflected light RL2 have a phase difference of approximately 180°. Thus, the first reflected light RL1 and the second reflected light RL2 can destructively combine. The thickness and material of the first metal-containing layer ML1, the second metal-containing layer ML2, the first dielectric layer IL1, and the second dielectric layer IL2 can be selected to meet the conditions for destructive interference between the first reflected light RL1 and the second reflected light RL2. However, the exemplary embodiments are not limited to this or are not subject to this limitation.

[0169] like FIG. 17C and FIG. 17D As shown, the anti-reflection layer RPL”” may further include black matrices BM-P1” and BM-P2”’. Although shown with reference to… FIG. 16E The black matrices BM-P1” and BM-P2”’ described are each of the same shape, but the exemplary embodiments are not limited to the shape, thickness, and / or stacking structure of each of the black matrices BM-P1” and BM-P2”’. However, it should be noted that the shape and construction of the first metal-containing layer ML1” and the second metal-containing layer ML2”, as well as the shape and construction of the first dielectric layer IL1” and the second dielectric layer IL2”’, can be constructed based on the construction of the black matrices BM-P1” and BM-P2”’. Although not shown separately, FIG. 17C and FIG. 17D The window widget and black matrix can be like FIG. 16F and FIG. 16G The shape and structure shown are used to form it.

[0170] FIGS. 18A-18F It is a section taken along section line I-I' according to one or more exemplary embodiments. FIG. 12A A cross-sectional view of the display device.FIGS. 18A-18F Display device and FIGS. 1A-17D The display device is similar to that described herein, so repeated descriptions will be omitted to avoid making the exemplary embodiments described herein unclear. Therefore, the differences will be described primarily below. Note that various configurations of the display device are shown, including the display member DM, the second adhesive member AM2, and the window member WM. For ease of explanation and description, the window member WM is shown as a single layer.

[0171] According to one or more exemplary embodiments, FIGS. 18A-18F The display device shown in the figure may be FIG. 4C An example of a display device. The touch sensing layer TS-R can detect external input and reduce the reflection of external light. As described below, these features are at least partially achieved by the touch sensing layer TS-R, which includes color filters.

[0172] like FIG. 18A As shown, a first touch insulating layer TS-IL1 is disposed on the surface BS1-U of the second display panel. A plurality of first insulating openings IL1-OP, corresponding to a plurality of light-emitting regions PXA, are respectively defined within the first touch insulating layer TS-IL1. A color filter CF”” may be disposed within the plurality of first insulating openings IL1-OP. The color of the color filter CF”” can be selected differently for the first insulating openings IL1-OP, taking into account the light emitted from the organic light-emitting device OLED. For example, a red color filter may be disposed overlaid with an organic light-emitting device OLED emitting red light, a green color filter may be disposed overlaid with an organic light-emitting device OLED emitting green light, and a blue color filter may be disposed overlaid with an organic light-emitting device OLED emitting blue light. However, it should be noted that any suitable color for the color filter can be utilized in conjunction with the exemplary embodiments described herein.

[0173] The color filter CF"" allows light emitted from the organic light-emitting device (OLED) to pass through while reducing the reflectivity of external light. Additionally, external light can pass through the color filter CF"" in such a way that its intensity is reduced by approximately one-third. A portion of the light passing through the color filter CF"" can dissipate, and this portion can be reflected by the OLED layer (DP-OLED) and the thin-film encapsulation layer (TFE). The reflected light can then be incident on the color filter CF"" in a reduced manner (e.g., brightness). As a result, only a portion of the external light can be reflected from the display device.

[0174] In one or more exemplary embodiments, the first touch insulating layer TS-IL1 and the color filter CF”” may be configured as a single layer. Furthermore, in one or more exemplary embodiments, the first touch insulating layer TS-IL1 may be connected to a reference… FIG. 16B and FIG. 16C The black matrix described corresponds to this.

[0175] A second touch insulating layer TS-IL2 is disposed on the first touch insulating layer TS-IL1. A plurality of second insulating openings IL2-OP corresponding to the plurality of light-emitting regions PXA are defined within the second touch insulating layer TS-IL2. The second touch insulating layer TS-IL2 and the color filter CF”” can provide a first base surface BS2 having a stepped shape. Although not shown separately, the touch sensing layer TS-R may also include an insulating layer providing the first base surface BS2.

[0176] According to one or more exemplary embodiments, a first touch insulating layer TS-IL1 and a second touch insulating layer TS-IL2 can be stacked sequentially, and then corresponding first insulating openings IL1-OP and IL2-OP can be formed simultaneously in a single process. Once the first insulating openings IL1-OP and IL2-OP are formed, a color filter CF”” can be formed. The color filter CF”” can be formed using a printing method such as inkjet printing or photolithography.

[0177] Although not shown along FIG. 12A The section line II-II' is a cross-section of the display device, but the display device can be compared with... FIG. 12C The display device is the same, or may also include black matrices BM-P1 and BM-P2 disposed on the non-display area NDA. Furthermore, although not shown along... FIG. 13A The section cut by section line III-III', but apart from the position of the sensing part, the display device can be with FIG. 18A The display devices are the same.

[0178] like FIG. 18B As shown, the second touch insulating layer TS-IL2' is disposed on the first touch insulating layer TS-IL1. FIG. 18A Unlike other methods, multiple second insulating openings IL2-OP are not provided in the second touch insulating layer TS-IL2'. The second touch insulating layer TS-IL2' provides the first base surface BS2'.

[0179] Reference FIG. 18CThe color filter CF””’ can be simultaneously disposed in the first insulating opening IL1-OP and the second insulating opening IL2-OP. Because the first insulating opening IL1-OP and the second insulating opening IL2-OP are formed simultaneously, the first insulating opening IL1-OP and the second insulating opening IL2-OP can be aligned with each other. The color filter CF””’ can extend from the inside of the first insulating opening IL1-OP to the inside of the second insulating opening IL2-OP. The color filter CF””’ can have a thickness on the third-direction DR3 that is substantially the same as the sum of the thicknesses of the first touch insulating layer TS-IL1” and the second touch insulating layer TS-IL2””. The second touch insulating layer TS-IL2”” and the color filter CF””’ can provide a flat first base surface BS2 on which the window member WM is disposed.

[0180] Reference FIG. 18D A black matrix BM can be disposed on the second touch insulating layer TS-IL2. Multiple transmission openings BM-OP corresponding to the light-emitting region PXA are defined within the black matrix BM. The black matrix BM and the color filter CF”” can provide a first base surface BS2”’ having a stepped shape. Although not shown, the black matrix BM can also cover the inner wall of each of the first insulating opening IL1-OP and the second insulating opening IL2-OP.

[0181] Although not shown, according to one or more exemplary embodiments, FIG. 18A and FIG. 18C At least one of the first touch insulating layer TS-IL1 and the second touch insulating layer TS-IL2 / TS-IL2' / TS-IL2" can be replaced by a black matrix BM. FIG. 18B The first touch insulating layer TS-IL1 can be replaced by the black matrix BM.

[0182] like FIG. 18E As shown, a thin-film encapsulation layer TFE provides a second display panel surface BS1-U. Color filters CF””” are disposed on the second display panel surface BS1-U. Each of the color filters CF””” may include a central portion CF-C and an edge portion CF-E. The central portion CF-C is superimposed on a corresponding light-emitting area of ​​a plurality of light-emitting areas PXA. The edge portion CF-E extends from the central portion CF-C and is superimposed on a non-light-emitting area NPXA. For example, the edge portion CF-E may be superimposed on a first conductive pattern (e.g., a first horizontal portion SP1-L of a first sensing portion SP1). Although not shown separately, the color filter CF””” may also be superimposed on a first connecting portion CP1. When each of the color filters CF””” is disposed on a plane, the edge portion CF-E may surround the central portion CF-C.

[0183] According to one or more exemplary embodiments, the edge portion CF-E of each of the adjacent color filters CF””” can contact and cover the first horizontal portion SP1-L of the first sensing portion SP1. The edge portions CF-E of the adjacent color filters CF””” can contact each other. The edge portions CF-E of the adjacent color filters CF””” can partially cover the first horizontal portion SP1-L to completely cover the first conductive pattern.

[0184] The black matrix TS-BM is set on the color filter CF". For example... FIG. 18E As shown, the black matrix TS-BM can be directly disposed on the color filter CF”””. Multiple transmission openings BM-OP’ corresponding to the light-emitting region PXA are defined in the black matrix TS-BM. The black matrix TS-BM and the color filter CF””” can provide a first base surface BS2””.

[0185] In one or more exemplary embodiments, the black matrix TS-BM may be configured to correspond to the non-emitting region NPXA. The plurality of emitting regions PXA and the plurality of transmission openings BM-OP' may have the same shape in a plane. That is, the black matrix TS-BM may have substantially the same shape as the non-emitting region NPXA (e.g., the black matrix TS-BM has the same width as the non-emitting region NPXA in the first direction DR1 and the second direction DR2). However, it is contemplated that the exemplary embodiments are not limited to or not subject to this limitation. For example, the plurality of emitting regions PXA and the plurality of transmission openings BM-OP' may have different shapes from each other.

[0186] Reference FIG. 18F The touch sensing layer TS-R""' includes a first black matrix TS-BM1 and a second black matrix TS-BM2. The first black matrix TS-BM1 is disposed on the surface BS1-U of the second display panel to cover the first conductive pattern (e.g., the first horizontal portion SP1-L of the first sensing portion SP1). A plurality of first transmission openings BM1-OP corresponding to the light-emitting area PXA are defined in the first black matrix TS-BM1. The edge portions CF-E' of adjacent color filters CF"""' can contact and cover the first black matrix TS-BM1. Adjacent color filters CF"""' can completely cover the first black matrix TS-BM1.

[0187] The second black matrix TS-BM2 is disposed on the color filter CF”””’. Multiple second transmission openings BM2-OP corresponding to the luminescent region PXA are confined within the second black matrix TS-BM2. The second black matrix TS-BM2 and the color filter CF”””’ can provide a first base surface BS2””’.

[0188] FIG. 19A and FIG. 19BIt is a cross-sectional view of a display device according to one or more exemplary embodiments. FIG. 20A and FIG. 20B This is a cross-sectional view of the cathode of an organic light-emitting diode in a display device according to one or more exemplary embodiments. Note that, according to one or more exemplary embodiments, FIG. 19A It was cut along section line I-I'. FIG. 12A The sectional view, and FIG. 19B It was cut along section line II-II'. FIG. 12A A sectional view. FIG. 19A , FIG. 19B , FIG. 20A and FIG. 20B Display device and FIGS. 1A-18F The display devices are similar, so repeated descriptions will be omitted to avoid making the exemplary embodiments described herein unclear. Therefore, the differences will be described primarily below. Note that various configurations of the display panel layer DP-R and touch sensing layer TS of the display component DM are shown.

[0189] Note that the display panel layer DP-R and touch sensing layer TS of various configurations of the display device are shown. Furthermore, FIG. 19A , FIG. 19B , FIG. 20A and FIG. 20B The display device shown in the figure may be FIG. 4D An example of a display device. The display panel layer DP-R can generate images and reduce the reflection of external light. As described below, these features are at least partially achieved by the cathode CE-R of the display panel layer DP-R, which has a reflection-prevention layer. FIG. 19A and FIG. 19B The touch sensing layer TS can be combined with FIG. 12B and FIG. 12C The touch sensing layer TS is basically the same. Although not shown, it can be understood as described in reference. FIGS. 18A-18F The first touch insulating layer TS-IL1 and the second touch insulating layer TS-IL2 are formed.

[0190] like FIG. 20A As shown, the cathode CE-R includes a first metal layer CE-M1, a transparent conductive layer CE-M2 disposed on the first metal layer CE-M1, and a second metal layer CE-M3 disposed on the transparent conductive layer CE-M2. The cathode CE-R with the aforementioned structure can receive power supply voltage and reduce the reflection of external light.

[0191] According to one or more exemplary embodiments, externally incident light OL is reflected by a first metal layer CE-M1, a transparent conductive layer CE-M2, and a second metal layer CE-M3. The light reflected by the first metal layer CE-M1, the transparent conductive layer CE-M2, and the second metal layer CE-M3 can be defined as a first reflected light RL1, a second reflected light RL2, and a third reflected light RL3, respectively. In one or more exemplary embodiments, the second reflected light RL2 and the third reflected light RL3 can destructively interfere with each other to reduce the reflection of external light OL. Destructive interference can occur if the mixed light of the second reflected light RL2 and the third reflected light RL3 has the same intensity as the first reflected light RL1 and an opposite phase (e.g., a phase difference of approximately 180 degrees) to the first reflected light RL1.

[0192] The first metal layer CE-M1 can be formed from one selected from the group consisting of aluminum (Al), silver (Ag), magnesium (Mg), chromium (Cr), titanium (Ti), nickel (Ni), gold (Au), tantalum (Ta), copper (Cu), calcium (Ca), cobalt (Co), iron (Fe), molybdenum (Mo), tungsten (W), platinum (Pt), ytterbium (Yb), barium (Ba), and alloys thereof. Because each of these metals has relatively low electrical resistance, it is suitable for the first metal layer CE-M1 to efficiently transmit the power supply voltage. Furthermore, because each of these metals is relatively easy to deposit and has relatively low reactivity with oxygen and moisture, it is suitable for the first metal layer CE-M1. The first metal layer CE-M1 can have a thickness of approximately 50 nm to approximately 500 nm.

[0193] The transparent conductive layer CE-M2 can be formed from a material selected from the group consisting of indium tin oxide (ITO), zinc aluminum oxide (AZO), indium gallium oxide (IGO), indium zinc gallium oxide (GIZO), indium zinc oxide (IZO), zinc oxide (ZnO), and mixtures thereof. The transparent conductive layer CE-M2 can be formed from at least one of a metal and a dielectric material. The transparent conductive layer CE-M2 generates a phase difference between the first reflected light RL1 and the remaining reflected light. The transparent conductive layer CE-M2 can have a selective thickness, thereby causing destructive interference. However, exemplary embodiments are not limited to or not subject to these limitations.

[0194] In one or more exemplary embodiments, destructive interference occurs between the third reflected light RL3 and the first reflected light RL1. To produce destructive interference, the third reflected light RL3 and the first reflected light RL1 may have opposite phase differences and the same magnitude (or intensity). To produce effective destructive interference, the third reflected light RL3 and the first reflected light RL1 may have similar magnitudes.

[0195] The second metal layer CE-M3 can be a metal with relatively high light absorbance. Metals with relatively high light absorbance absorb light that has not been completely dissipated due to destructive interference. The light absorbance of a metal is proportional to the product of its refractive index and absorption coefficient. Thus, if a metal has a large product of its refractive index and absorption coefficient, then that metal is suitable for use as the second metal layer material of CE-M3.

[0196] According to one or more exemplary embodiments, the second metal layer CE-M3 may be formed of chromium (Cr), titanium (Ti), magnesium (Mg), molybdenum (Mo), cobalt (Co), nickel (Ni), tungsten (W), aluminum (Al), silver (Ag), gold (Au), copper (Cu), iron (Fe), calcium (Ca), platinum (Pt), ytterbium (Yb), or alloys thereof. The second metal layer CE-M3 may have a thickness of approximately 1 nm to approximately 25 nm.

[0197] Reference FIG. 20B The cathode CE-R' may also include a third metal layer CE-M4 disposed on the second metal layer CE-M3. Additionally, the cathode CE-R' can be designed such that the fourth reflected light RL4 reflected from the third metal layer CE-M4 causes destructive interference with the first reflected light RL1.

[0198] According to one or more exemplary embodiments, the third metal layer CE-M4 may have a work function, thereby facilitating the injection of charge (electrons). When the third metal layer CE-M4 constitutes the uppermost layer of the cathode CE-R', the third metal layer CE-M4 may have relatively low reactivity with oxygen and moisture. The third metal layer CE-M4 may be formed of a metal or alloy thereof having a work function of about 4.6 eV or less. Alternatively, the third metal layer CE-M4 may be formed of a metal or alloy thereof having a work function of about 3.7 eV or less. The third metal layer CE-M4 may be formed of a metal selected from the group consisting of ytterbium (Yb), calcium (Ca), aluminum (Al), silver (Ag), chromium (Cr), titanium (Ti), magnesium (Mg), lithium (Li), cesium (Cs), barium (Ba), potassium (K), and alloys thereof. The third metal layer CE-M4 may have a thickness of about 1 nm to about 15 nm.

[0199] Although the first metal layer CE-M1, the transparent conductive layer CE-M2, the second metal layer CE-M3, and the third metal layer CE-M4 constitute the cathode CE-R', the exemplary embodiments are not limited thereto or are not subject to this limitation. For example, unlike the cathode CE, the cathode CE-R' may be disposed in the display panel layer DP to perform only the anti-reflection function.

[0200] According to one or more exemplary embodiments, the touch detection component, anti-reflection component, window component, and protective component can be integrally formed with the display panel as a touch sensing layer, anti-reflection layer, window layer, and outer protective layer. Because the touch sensing layer, anti-reflection layer, window layer, and outer protective layer are formed through a continuous process, one or more adhesive components, such as one or more OCA layers or one or more adhesive layers, such as one or more OCR layers, can be omitted. Because the adhesive components are omitted, the display device can be thinner, which also improves the flexibility and aesthetic appeal of the display device.

[0201] According to one or more exemplary embodiments, the touch detection component and the anti-reflection component can be integrally formed with the display panel as a touch sensing layer and an anti-reflection layer. In this way, the display device can be thinner than a conventional display device having touch detection components and anti-reflection components that can be bonded to the display device using adhesives. Furthermore, the number of adhesive components can be minimized (or at least reduced). Because the display device is thinner, delamination defects in the adhesive components can be reduced even if the display device is repeatedly bent (or flexed). Additionally, because the display device is thinner, the display device can be bent (or flexed) with a smaller radius of curvature.

[0202] It will be apparent to those skilled in the art that various modifications and alterations can be made to this invention. Therefore, it is intended that this disclosure cover modifications and alterations to the invention, provided they fall within the scope of the claims and their equivalents.

[0203] While specific exemplary embodiments and implementations have been described herein, other embodiments and modifications will be apparent from these descriptions. Therefore, the inventive concept is not limited to such embodiments, but rather lies within the broader scope of the claims and various apparent modifications and equivalent arrangements.

Claims

1. A flexible display device, the flexible display device comprising: Protective components; window; A display component is disposed between the protective component and the window, the display component including multiple light-emitting areas and non-light-emitting areas adjacent to the multiple light-emitting areas; A first adhesive layer is used to bond the display component to the protective component; as well as A second adhesive layer is used to bond the display component to the window. The display component includes: a display panel comprising a first surface and a second surface opposite to the first surface; and a touch sensing layer directly disposed on the second surface without an adhesive layer between the touch sensing layer and the second surface, wherein the touch sensing layer includes a third surface in contact with the second surface and a fourth surface opposite to the third surface. The thickness of the display component between the first surface and the fourth surface is 30 μm to 50 μm, and is less than the sum of the thicknesses of the protective component and the window. The display panel includes a base layer providing the first surface and an uppermost inorganic layer providing the second surface, and The touch sensing layer includes an insulating layer that provides the uppermost layer of the fourth surface.

2. The flexible display device according to claim 1, wherein, The display panel also includes light-emitting diodes disposed between the uppermost inorganic layer and the base layer, and The touch sensing layer also includes a bottom insulating layer providing the third surface and a conductive pattern disposed between the top insulating layer and the bottom insulating layer.

3. The flexible display device according to claim 2, wherein, The display panel also includes an inorganic layer and an organic layer for sealing the light-emitting diodes.

4. The flexible display device according to claim 2, wherein, The protective component is thicker than the base layer.

5. The flexible display device according to claim 1, wherein, The ratio between the thickness of the display component and the sum of the thicknesses of the protective component and the window is 1:1.2 to 1:

4.

6. The flexible display device according to claim 5, wherein, The ratio between the thickness of the protective component and the thickness of the window is 5:3 to 3:

7.

7. The flexible display device according to claim 6, wherein, The ratio between the thickness of the first adhesive layer and the second adhesive layer corresponds to the ratio between the thickness of the protective member and the window.

8. The flexible display device according to claim 1, wherein, The window includes: A base film is disposed on the second adhesive layer; and A hard coating layer is disposed on the base film.

9. The flexible display device according to claim 8, wherein, The window also includes: A functional coating layer is disposed on the base film.

10. The flexible display device according to claim 8, wherein, The window also includes: A black matrix is ​​disposed on the base film, and the black matrix is ​​not superimposed on the plurality of light-emitting regions.

11. The flexible display device according to claim 1, wherein, The display component further includes an anti-reflection layer, which is directly disposed on the touch sensing layer and there is no adhesive layer between the anti-reflection layer and the touch sensing layer.

12. The flexible display device according to claim 11, wherein, The anti-reflection layer includes: The black matrix is ​​directly disposed on the uppermost insulating layer and superimposed on the non-light-emitting area; and Multiple color filters are disposed on the uppermost insulating layer and are respectively stacked with the multiple light-emitting areas.

13. The flexible display device according to claim 1, wherein, The uppermost insulating layer comprises inorganic or organic materials.

14. A flexible display device, the flexible display device comprising: Protective components; window; A display component is disposed between the protective component and the window, the display component including multiple light-emitting areas and non-light-emitting areas adjacent to the multiple light-emitting areas; A first adhesive layer is used to bond the display component to the protective component; as well as A second adhesive layer is used to bond the display component to the window. The display component includes: a base layer including a lower surface contacting the first adhesive layer; a plurality of light-emitting diodes disposed on the base layer; an inorganic layer on the plurality of light-emitting diodes; a conductive pattern disposed on the inorganic layer without an adhesive layer between the conductive pattern and the inorganic layer; and an insulating layer on the conductive pattern including an upper surface contacting the second adhesive layer. The thickness of the display component between the lower surface of the base layer and the upper surface of the insulating layer is 30 μm to 50 μm, and is less than the sum of the thicknesses of the protective component and the window.

15. A flexible display device, the flexible display device comprising: Protective components; window; A display component is disposed between the protective component and the window; A first adhesive layer is used to bond the display component to the protective component; as well as A second adhesive layer is used to bond the display component to the window. The display component includes: The display panel includes a first surface that contacts the first adhesive layer and a second surface that is opposite to the first surface. The display panel includes a display area and a non-display area adjacent to the display area. The display area includes a plurality of light-emitting areas and a non-light-emitting area adjacent to the plurality of light-emitting areas. A touch sensing layer is directly disposed on the second surface without an adhesive layer between the touch sensing layer and the second surface, and the touch sensing layer includes a third surface in contact with the second surface and a fourth surface opposite to the third surface; and An anti-reflection layer is directly disposed on the fourth surface without an adhesive layer between the anti-reflection layer and the fourth surface, and the anti-reflection layer includes a fifth surface in contact with the fourth surface and a sixth surface opposite to the fifth surface. The thickness of the display component between the first surface and the sixth surface is 30 μm to 50 μm, and is less than the sum of the thicknesses of the protective component and the window. The display panel includes a base layer providing the first surface, and The anti-reflection layer includes a plurality of color filters, and each of the plurality of color filters includes an upper surface defining the sixth surface.

16. The flexible display device according to claim 15, wherein, The anti-reflection layer also includes a black matrix directly disposed on the fourth surface.

17. The flexible display device according to claim 16, wherein, The black matrix includes: The light-shielding part is superimposed on the non-light-emitting area; and The frame portion is adjacent to the light shielding portion, and The frame portion is thicker than the light shielding portion.

18. The flexible display device according to claim 17, wherein, The light shielding part and the frame part are integral to each other.

19. The flexible display device according to claim 17, wherein, The border portion includes multiple layers, and The first of the plurality of layers is integral with the optical shielding component.

20. The flexible display device according to claim 15, wherein, The touch sensing layer includes a conductive pattern and at least one insulating layer providing the third and fourth surfaces.

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