Display devices

Abstract

A display device includes a display panel and a digitizer overlapping the display panel, wherein the digitizer includes a base layer, a folding area, a first circuit pattern, a plurality of first dummy patterns, a second circuit pattern, and a plurality of second dummy patterns, wherein the first circuit pattern is arranged on a first surface of the base layer and extends in a first direction, the plurality of first dummy patterns are arranged in an area defined by the first circuit pattern, the second circuit pattern is arranged on a second surface of the base layer and extends in a second direction intersecting the first direction, the plurality of second dummy patterns are arranged in an area defined by the second circuit pattern, and the second dummy patterns include a plurality of first lower dummy patterns and a plurality of second lower dummy patterns, wherein the plurality of first lower dummy patterns do not overlap with the folding area, and the plurality of second lower dummy patterns overlap with the folding area.

Description

Technical Field

[0001] The present invention relates to a display device. Background Art

[0002] Electronic devices that provide images to users, such as smartphones, digital cameras, laptops, navigation devices, and smart televisions (TVs), include display devices for displaying images. Display devices may include liquid crystal displays, light-emitting diode displays, quantum dot displays, and the like.

[0003] Electronic devices may employ curved, bendable, or rollable flexible display devices.

[0004] The electronic device may support not only a touch input by a part of the user's body but also a touch input by an electronic pen (eg, a stylus pen).

[0005] Stylus-based touch input methods can include electromagnetic resonance and active electrostatic methods. The electromagnetic resonance method uses a digitizer included in an electronic device to sense induced electromagnetic forces. For example, at least one conductive circuit capable of detecting external electromagnetic forces can be patterned on the digitizer. Summary of the Invention

[0006] According to an exemplary embodiment of the present invention, a display device is provided, wherein the display device includes a display panel and a digitizer overlapping the display panel, wherein the digitizer includes a base layer, a folding area, a first circuit pattern, a plurality of first dummy patterns, a second circuit pattern, and a plurality of second dummy patterns, wherein the first circuit pattern is arranged on a first surface of the base layer and extends in a first direction, the plurality of first dummy patterns are arranged in an area defined by the first circuit pattern, the second circuit pattern is arranged on a second surface of the base layer and extends in a second direction intersecting the first direction, the plurality of second dummy patterns are arranged in an area defined by the second circuit pattern, the second dummy patterns include a plurality of first lower dummy patterns and a plurality of second lower dummy patterns, wherein the plurality of first lower dummy patterns do not overlap with the folding area, the plurality of second lower dummy patterns overlap with the folding area, and an area occupied by the second lower dummy patterns is different from an area occupied by the first lower dummy patterns.

[0007] An area occupied by the second lower dummy pattern may be smaller than an area occupied by the first lower dummy pattern.

[0008] The number of the second lower dummy patterns may be greater than the number of the first lower dummy patterns for each second circuit pattern.

[0009] At least one of the second lower dummy patterns may be divided into a plurality of parts.

[0010] The number of the second lower dummy patterns may be smaller than the number of the first lower dummy patterns.

[0011] At least one of the second lower dummy patterns may be uninterrupted.

[0012] The first dummy pattern may include a plurality of first upper dummy patterns and a plurality of second upper dummy patterns, wherein the plurality of first upper dummy patterns do not overlap with the folding area, the plurality of second upper dummy patterns overlap with the folding area, and an area occupied by the second upper dummy patterns may be different from an area occupied by the first upper dummy patterns.

[0013] The number of the second upper dummy patterns may be greater than the number of the first upper dummy patterns for each first circuit pattern.

[0014] At least one of the second upper dummy patterns may be divided into a plurality of parts.

[0015] The number of the second upper dummy patterns may be smaller than the number of the first upper dummy patterns.

[0016] At least one of the second upper dummy patterns may be uninterrupted.

[0017] According to an exemplary embodiment of the present invention, a display device is provided, wherein the display device includes a display panel and a digitizer overlapping the display panel, wherein the digitizer includes a base layer, a folding area, a first circuit pattern, a plurality of first dummy patterns, a second circuit pattern, and a plurality of second dummy patterns, wherein the first circuit pattern is arranged on a first surface of the base layer and extends in a first direction, the plurality of first dummy patterns are arranged in an area within the first circuit pattern, the second circuit pattern is arranged on a second surface of the base layer and extends in a second direction intersecting with the first direction, the plurality of second dummy patterns are arranged in an area within the second circuit pattern, the first dummy pattern includes a plurality of first upper dummy patterns and a plurality of second upper dummy patterns, wherein the plurality of first upper dummy patterns do not overlap with the folding area, the plurality of second upper dummy patterns overlap with the folding area, and the direction in which the second upper dummy patterns extend intersects with the direction in which the first upper dummy patterns extend.

[0018] The folding area may include a folding line, which is a long side of the folding area.

[0019] A direction in which the second upper dummy pattern extends may intersect the folding line, and a direction in which the first upper dummy pattern extends may be parallel to the folding line.

[0020] A direction in which the second upper dummy pattern extends may be parallel to the folding line, and a direction in which the first upper dummy pattern extends may intersect the folding line.

[0021] The second dummy pattern may include a plurality of first lower dummy patterns and a plurality of second lower dummy patterns, wherein the plurality of first lower dummy patterns do not overlap with the folding area and the plurality of second lower dummy patterns overlap with the folding area.

[0022] A direction in which the second lower dummy pattern extends may intersect both a direction in which the first lower dummy pattern extends and the folding line.

[0023] A direction in which the second lower dummy pattern extends may intersect a direction in which the first lower dummy pattern extends and may be parallel to the folding line.

[0024] According to an exemplary embodiment of the present invention, a display device is provided, wherein the display device includes a display panel and a digitizer overlapping with the display panel, wherein the digitizer includes a base layer, a folding area, a first circuit pattern, a plurality of first dummy patterns, a second circuit pattern, and a plurality of second dummy patterns, wherein the first circuit pattern is arranged on a first surface of the base layer and extends in a first direction, the plurality of first dummy patterns are arranged in a region formed by the first circuit pattern, the second circuit pattern is arranged on a second surface of the base layer and extends in a second direction intersecting the first direction, the plurality of second dummy patterns are arranged in a region formed by the second circuit pattern, and the first dummy patterns and the second dummy patterns do not overlap with the folding area.

[0025] The second dummy patterns may be disposed adjacent to each other with the folding area interposed between the second dummy patterns.

[0026] According to an exemplary embodiment of the present invention, a display device is provided, wherein the display device includes a display panel and a digitizer overlapping the display panel, wherein the digitizer includes a base layer, a folding area, a plurality of first circuit patterns, and a plurality of second circuit patterns, wherein the plurality of first circuit patterns are located on a first side of the base layer, the plurality of second circuit patterns are located on a second side of the base layer, at least one of the first circuit patterns includes a plurality of first dummy patterns that overlap with the base layer and are not located in the folding area, and at least one of the second circuit patterns includes a plurality of second dummy patterns that overlap with the base layer and are not located in the folding area.

[0027] At least one of the first dummy patterns may overlap with at least one of the second dummy patterns.

[0028] At least one first circuit pattern may extend in a first direction, and at least one second circuit pattern may extend in a second direction crossing the first direction.

[0029] The display device may further include an adhesive layer overlapping the at least one first circuit pattern and in contact with the first side of the base layer.

[0030] The thickness of the adhesive layer in the folding region may be smaller than a thickness of the adhesive layer in a region overlapping the at least one first circuit pattern. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The above and other features of the present invention will become more apparent by describing in detail exemplary embodiments of the present invention with reference to the accompanying drawings, in which:

[0032] Figure 1 is a perspective view of a display device in an unfolded state according to an exemplary embodiment of the present invention;

[0033] Figure 2 yes Figure 1 A perspective view of the display device in a folded state;

[0034] Figure 3 is a perspective view of another display device in an unfolded state according to an exemplary embodiment of the present invention;

[0035] Figure 4 yes Figure 3 A perspective view of the display device in a folded state;

[0036] Figure 5 is an exploded perspective view of a display device according to an exemplary embodiment of the present invention;

[0037] Figure 6 It is along Figure 5 A sectional view taken along line II';

[0038] Figure 7 yes Figure 6 an enlarged cross-sectional view of a portion Q;

[0039] Figure 8 is an exploded perspective view of a digitizer according to an exemplary embodiment of the present invention;

[0040] Figure 9 yes Figure 6 an enlarged sectional view of a portion R;

[0041] Figure 10 It shows Figure 8 a plan view of a first circuit pattern and a second circuit pattern of a digitizer;

[0042] Figure 11 is a cross-sectional view showing that a display device according to an exemplary embodiment of the present invention is touched by a stylus pen;

[0043] Figure 12 is a plan view showing a first circuit pattern and a second circuit pattern of a digitizer according to another exemplary embodiment of the present invention;

[0044] Figure 13 、 Figure 14 、 Figure 15 、 Figure 16 、 Figure 17 、 Figure 18 、 Figure 19 and Figure 20 is a plan view showing a first circuit pattern and a second circuit pattern of a digitizer according to other exemplary embodiments of the present invention;

[0045] Figure 21 is a plan view showing a first circuit pattern and a second circuit pattern of a digitizer according to another exemplary embodiment of the present invention; and

[0046] Figure 22 、 Figure 23 、 Figure 24 、 Figure 25 、 Figure 26 and Figure 27 is a plan view illustrating a first circuit pattern and a second circuit pattern of a digitizer according to other exemplary embodiments of the present invention. DETAILED DESCRIPTION

[0047] Exemplary embodiments of the present invention will now be described more fully hereinafter with reference to the accompanying drawings. However, the present invention may be embodied in different forms and should not be construed as limited to the embodiments set forth herein.

[0048] It will also be understood that when a layer is referred to as being “on” another layer or substrate, it can be directly on the other layer or substrate, or intervening layers may also be present. Throughout the specification, the same reference numerals may refer to the same components.

[0049] Figure 1 is a perspective view of a display apparatus in an unfolded state according to an exemplary embodiment of the present invention. Figure 2 yes Figure 1 A perspective view of a display device in a folded state. Figure 3 is a perspective view of another display apparatus in an unfolded state according to an exemplary embodiment of the present invention. Figure 4 yes Figure 3 A perspective view of a display device in a folded state.

[0050] refer to Figure 1, the display device 10 may be a foldable display device. Hereinafter, the display device 10 will be described as being applied to a smartphone, but the present invention is not limited thereto. In other words, the display device 10 may also be applied to a portable phone other than a smartphone, a tablet personal computer (PC), a personal digital assistant (PDA), a portable multimedia player (PMP), a television (TV), a game console, a watch-type electronic device, a head-mounted display (HMD), a monitor of a PC, a notebook computer, a car navigation device, a car dashboard, a digital camera, a camcorder, an external billboard, an electronic board, a medical device, a test device, various household appliances such as a refrigerator or a washing machine, or an Internet of Things (IoT) device.

[0051] The display device 10 can be classified in a variety of ways based on how it displays an image. Examples of the display device 10 include an organic light-emitting diode (OLED) display device, an inorganic light-emitting diode (ILED) display device, a quantum dot light-emitting diode (QLED) display device, a micro light-emitting diode (microLED) display device, a nano light-emitting diode (nanoLED) display device, a field emission display (FED) device, and an electrophoretic display (EPD) device. Hereinafter, the display device 10 will be described as an OLED display device, which may be simply referred to as a display device, but the present invention is not limited thereto. In other words, the display device 10 may also be applicable to various other display devices listed above and / or known in the art to which the present disclosure belongs.

[0052] refer to Figure 1 and Figure 2 , a first direction DR1 parallel to the first side of the display device 10 in a plan view may be, for example, a horizontal direction of the display device 10, a second direction DR2 parallel to a side of the display device 10 intersecting with the first side of the display device 10 in a plan view may be (for example) a vertical direction of the display device 10, and a third direction DR3 may be a thickness direction of the display device 10.

[0053] The display device 10 may have a rectangular shape in a plan view. In a plan view, the display device 10 may have a rectangular shape with right angles or rounded corners. The display device 10 may include two short sides arranged in a first direction DR1 and two long sides arranged in a second direction DR2 in a plan view.

[0054] The display device 10 may include a display area DA and a non-display area NDA. In a plan view, the shape of the display area DA may correspond to the shape of the display device 10. For example, if the display device 10 has a rectangular shape in a plan view, the display area DA may also have a rectangular shape in a plan view.

[0055] The display area DA may be an area including a plurality of pixels and displaying an image. The pixels may be arranged in rows and columns. The pixels may have a rectangular, diamond, or square shape in plan view, but the present invention is not limited thereto. For example, the pixels may have a quadrilateral shape other than a rectangular, diamond, or square shape, a non-quadrilateral polygonal shape, a circular shape, or an elliptical shape in plan view.

[0056] The non-display area NDA may be an area that does not include pixels and does not display an image. The non-display area NDA may be disposed around the display area DA. Figure 1 and Figure 2 As shown in FIG, the non-display area NDA may be disposed to surround the display area DA, but the present invention is not limited thereto. The display area DA may be partially surrounded by the non-display area NDA.

[0057] The display device 10 can be folded or unfolded. Figure 2 As shown in , the display device 10 can be folded inward so that the display area DA can be placed on the inner side of the display device 10. In this case, portions of the top surface of the display device 10 can be arranged to face each other. In other words, the display surfaces of the display device 10 face each other. Alternatively, the display device 10 can be folded outward so that the display area DA can be placed on the outer side of the display device 10. In this case, portions of the bottom surface of the display device 10 can be arranged to face each other. In other words, the non-display surfaces of the display device 10 face each other.

[0058] The display device 10 may include a folding area FDA, a first non-folding area NFA1, and a second non-folding area NFA2. The folding area FDA may be an area where the display device 10 is folded, and the first non-folding area NFA1 and the second non-folding area NFA2 may be areas where the display device 10 is not folded. For example, the folding area FDA may be flexible, and the first non-folding area NFA1 and the second non-folding area NFA2 may be rigid.

[0059] The first non-folding area NFA1 may be disposed on one side (e.g., the upper side) of the folding area FDA. In other words, the first non-folding area NFA1 may be disposed on the first side of the folding area FDA. The second non-folding area NFA2 may be disposed on the other side (e.g., the lower side) of the folding area FDA. In other words, the second non-folding area NFA2 may be disposed on the second side of the folding area FDA. The folding area FDA may be an area curved with a predetermined curvature between the first folding line FL1 and the second folding line FL2. Therefore, the first folding line FL1 may be a boundary between the folding area FDA and the first non-folding area NFA1, and the second folding line FL2 may be a boundary between the folding area FDA and the second non-folding area NFA2. The first folding line FL1 may be one of the long sides of the folding area FDA, and the second folding line FL2 may be the other long side of the folding area FDA.

[0060] like Figure 1 As shown in FIG, the first folding line FL1 and the second folding line FL2 can extend in the first direction DR1, and the display device 10 can be folded in the second direction DR2. Therefore, the length of the display device 10 in the second direction DR2 can be reduced by about half, making it easy for the user to carry the display device 10.

[0061] The direction in which the first and second folding lines FL1 and FL2 extend is not limited to the first direction DR1. For example, the first and second folding lines FL1 and FL2 may extend in the second direction DR2, and the display device 10 may be folded in the first direction DR1. In this case, the length of the display device 10 in the first direction DR1 can be reduced by approximately half. Furthermore, the first and second folding lines FL1 and FL2 may extend in a diagonal direction between the first and second directions DR1 and DR2. In this case, the display device 10 can be folded into a triangle.

[0062] Figure 1 and Figure 2 The display area DA and the non-display area NDA are shown as overlapping with the folding area FDA, the first non-folding area NFA1, and the second non-folding area NFA2, but the present invention is not limited thereto. For example, the display area DA and the non-display area NDA may overlap with at least one of the folding area FDA, the first non-folding area NFA1, and the second non-folding area NFA2.

[0063] refer to Figure 3 and Figure 4, the first direction DR1 parallel to the first side of the display device 10 in the plan view may be, for example, the vertical direction of the display device 10, the second direction DR2 parallel to the side of the display device 10 intersecting with the first side of the display device 10 in the plan view may be, for example, the horizontal direction of the display device 10, and the third direction DR3 may be the thickness direction of the display device 10.

[0064] The display device 10 may have a rectangular shape in a plan view. In a plan view, the display device 10 may have a rectangular shape with right angles or rounded corners. The display device 10 may include two long sides arranged in a first direction DR1 and two short sides arranged in a second direction DR2 in a plan view.

[0065] The display device 10 may include a display area DA and a non-display area NDA. In a plan view, the shape of the display area DA may correspond to the shape of the display device 10. For example, if the display device 10 has a rectangular shape in a plan view, the display area DA may also have a rectangular shape in a plan view.

[0066] The display device 10 can be folded or unfolded. Figure 4 As shown in , the display device 10 can be folded inward so that the display area DA can be placed on the inner side of the display device 10. Alternatively, the display device 10 can be folded outward so that the display area DA can be placed on the outer side of the display device 10. The display device 10 may include a folding area FDA, a first non-folding area NFA1, and a second non-folding area NFA2. The folding area FDA may be an area curved with a predetermined curvature between the first folding line FL1 and the second folding line FL2. Figure 3 and Figure 4 As shown in FIG, the first folding line FL1 and the second folding line FL2 can extend in the first direction DR1, and the display device 10 can be folded in the second direction DR2. Therefore, the length of the display device 10 in the second direction DR2 can be reduced by about half, making it easy for the user to carry the display device 10.

[0067] Figure 5 is an exploded perspective view of a display apparatus according to an exemplary embodiment of the present invention. Figure 6 It is along Figure 5 A cross-sectional view taken along line II'. Figure 7 yes Figure 6 An enlarged cross-sectional view of portion Q. Figure 8 is an exploded perspective view of a digitizer according to an exemplary embodiment of the present invention. Figure 9 yes Figure 6 An enlarged cross-sectional view of portion R. Figure 10 It shows Figure 8A plan view of a first circuit pattern and a second circuit pattern of a digitizer. Figure 11 is a cross-sectional view illustrating that a display device according to an exemplary embodiment of the present invention is touched by a stylus pen.

[0068] refer to Figures 5 to 7 The display device 10 may include a display panel structure DP and a digitizer 70, wherein the digitizer 70 is disposed below the display panel structure DP. The display device 10 may further include a protective film 40, a window 30, and a functional layer 20, wherein the protective film 40 is disposed on the display panel structure DP, the window 30 is disposed between the protective film 40 and the display panel structure DP, and the functional layer 20 is disposed between the window 30 and the display panel structure DP.

[0069] A protective film 40 may be provided on the window 30 to protect the window 30. The protective film 40 may overlap with the window 30 and cover the top surface of the window 30. The protective film 40 may cover the entire top surface of the window 30 or at least a portion of the top surface of the window 30. The protective film 40 may directly contact the top surface of the window 30.

[0070] The protective film 40 can be freely detachable from the window 30. For example, the protective film 40 can be attached to or not attached to the window 30 according to the user's choice. The protective film 40 can be formed of a polymer resin having flexible properties. For example, the protective film 40 can include a polyimide resin, an acrylic resin, a methacrylic resin, a polyisoprene resin, a vinyl resin, an epoxy resin, a urethane resin, a cellulose resin, or a perylene resin.

[0071] The window 30 may be provided on the display panel structure DP to protect the display panel structure DP. The window 30 may overlap with the display panel structure DP and cover the entire surface of the display panel structure DP. The window 30 may be larger than the display panel structure DP. For example, the window 30 may protrude beyond the display panel structure DP on the two short sides of the display device 10. The window 30 may also protrude beyond the display panel structure DP on the two long sides of the display device 10. The distance that the window 30 protrudes beyond the display panel structure DP on the short sides of the display device 10 may be greater than the distance that the window 30 protrudes beyond the display panel structure DP on the long sides of the display device 10. However, the distance that the window 30 protrudes beyond the display panel structure DP on the long sides of the display device 10 may be greater than the distance that the window 30 protrudes beyond the display panel structure DP on the short sides of the display device 10.

[0072] The window 30 may be formed of a material such as glass or plastic. The window 30 may have a flexible property. In the case where the window 30 is formed of a glass material, the window 30 may be formed of ultra-thin glass (UTG) to have flexibility. In this case, the window 30 may have a thickness of 50 μm, for example, a thickness of 25 μm to 125 μm, but the present invention is not limited thereto. The window 30 may include a polymer resin such as a polyimide resin, an acrylic resin, a methacrylic resin, a polyisoprene resin, a vinyl resin, an epoxy resin, a urethane resin, a cellulose resin, or a perylene resin.

[0073] The functional layer 20 may be disposed between the window 30 and the display panel structure DP. For example, the functional layer 20 may directly contact the window 30 and the display panel structure DP. If the window 30 is formed of a glass material, the functional layer 20 may be an anti-dispersion film. Therefore, since the functional layer 20, acting as an anti-dispersion film, is attached to the bottom of the window 30, if the window 30 is damaged, fragments of the window 30 are prevented from being dispersed.

[0074] However, the present invention is not limited thereto. Alternatively, the functional layer 20 may be a layer that reduces reflection of external light incident from above the window 30, for example, an anti-reflection film. For example, the functional layer 20 may include a retarder and a polarizer. The retarder may be a film type or a liquid crystal coating type, and may include a λ / 2 retarder and / or a λ / 4 retarder. The polarizer may also be a film type or a liquid crystal coating type. A film type retarder or polarizer may include a stretched synthetic resin film, and a liquid crystal coating type retarder or polarizer may include liquid crystal molecules arranged in a predetermined manner.

[0075] The functional layer 20 may include a destructive interference structure. For example, the destructive interference structure may include a first reflective layer and a second reflective layer disposed on different layers. In this case, the first reflected light from the first reflective layer and the second reflected light from the second reflective layer may destruct each other, thereby reducing reflection of external light.

[0076] The window 30 and the functional layer 20 may be bonded to each other by an optically clear adhesive (OCA) or an optically clear resin (OCR).

[0077] refer to Figure 7 The display panel structure DP may include a display panel 100 and a touch sensor 200 , wherein the touch sensor 200 is disposed on the display panel 100 .

[0078] The display panel 100 may be a display panel including a self-emitting element. For example, the self-emitting element may include an OLED, a QLED, a micro-LED based on an inorganic material, and / or a nano-LED based on an inorganic material. For example, the self-emitting element will be described as an OLED below.

[0079] The display panel 100 may include a base substrate 110 , a first electrode 120 , a pixel defining layer 130 , a light emitting layer 140 , a second electrode 150 , and an encapsulation layer 170 .

[0080] The base substrate 110 may be an insulating substrate. The base substrate 110 may be flexible and may include a flexible polymer material. Here, the polymer material may be polyimide (PI), polyethersulfone (PES), polyacrylate (PA), polyarylate (PAR), polyetherimide (PEI), polyethylene naphthalate (PEN), polyethylene terephthalate (PET), polyphenylene sulfide (PPS), polyallyl, polycarbonate (PC), cellulose triacetate (CAT), cellulose acetate propionate (CAP), or a combination thereof.

[0081] The first electrode 120 may be disposed on the base substrate 110. The first electrode 120 may be an anode electrode. A plurality of elements may be disposed between the base substrate 110 and the first electrode 120. For example, the plurality of elements may include a buffer layer, a plurality of conductive lines, an insulating layer, and a plurality of thin film transistors (TFTs).

[0082] The pixel defining layer 130 may be disposed on the first electrode 120. The pixel defining layer 130 may include an opening exposing at least a portion of the first electrode 120.

[0083] The light-emitting layer 140 may be disposed on the first electrode 120. For example, the light-emitting layer 140 may emit one of red light, green light, and blue light. The red light may have a wavelength of about 520 nm to about 750 nm, the green light may have a wavelength of about 495 nm to about 570 nm, and the blue light may have a wavelength of about 450 nm to about 495 nm. The light-emitting layers 140 may each be formed as a single layer. Alternatively, each of the light-emitting layers 140 may have a structure in which a plurality of organic light-emitting layers are stacked, for example, a cascade structure. In another example, the light-emitting layer 140 may emit white light. In this example, each of the light-emitting layers 140 may have a structure in which a red organic light-emitting layer, a green organic light-emitting layer, and a blue organic light-emitting layer are stacked.

[0084] The second electrode 150 may be provided on the light emitting layer 140 and the pixel defining layer 130. For example, the second electrode 150 may be formed on the entire surface of the light emitting layer 140 and the entire surface of the pixel defining layer 130. In other words, the light emitting layer 140 and the pixel defining layer 130 may be covered by the second electrode 150. In an exemplary embodiment of the present invention, the second electrode 150 may be a cathode electrode.

[0085] The first electrode 120 , the second electrode 150 , and the light emitting layer 140 may form a light emitting element EL.

[0086] The encapsulation layer 170 may be provided on the light emitting element EL. The encapsulation layer 170 may seal the light emitting element EL to prevent moisture from penetrating into the light emitting element EL. In other words, the encapsulation layer 170 may prevent external moisture from reaching the light emitting element EL.

[0087] The encapsulation layer 170 may be a thin film encapsulation layer and may include one or more organic layers and one or more inorganic layers. For example, the encapsulation layer 170 may include a first inorganic layer 171, an organic layer 172, and a second inorganic layer 173, wherein the first inorganic layer 171 is disposed on the second electrode 150, the organic layer 172 is disposed on the first inorganic layer 171, and the second inorganic layer 173 is disposed on the organic layer 172. The first inorganic layer 171, the organic layer 172, and the second inorganic layer 173 may be stacked sequentially.

[0088] The first inorganic layer 171 can prevent moisture or oxygen from penetrating into the light emitting element EL. The first inorganic layer 171 can be formed of silicon oxide, silicon nitride, aluminum nitride, zirconium nitride, titanium nitride, hafnium nitride, tantalum nitride, aluminum oxide, titanium oxide, tin oxide, cerium oxide, or silicon oxynitride (SiON).

[0089] The organic layer 172 may be provided on the first inorganic layer 171. The organic layer 172 may improve flatness. For example, the organic layer 172 may be formed of a liquid organic material such as an acrylic resin, a methacrylic resin, polyisoprene, a vinyl resin, an epoxy resin, a urethane resin, a cellulose resin, or a perylene resin. The liquid organic material may be provided on the base substrate 110 by deposition, printing, or coating, and may then be cured.

[0090] The second inorganic layer 173 may be provided on the organic layer 172. The second inorganic layer 173 may perform substantially the same function as or a similar function to the first inorganic layer 171. The second inorganic layer 173 may completely cover the organic layer 172. In an exemplary embodiment of the present invention, the first inorganic layer 171 and the second inorganic layer 173 may contact each other to form an inorganic-inorganic junction. However, the structure of the encapsulation layer 170 is not limited thereto and may vary. In an exemplary embodiment of the present invention, the encapsulation layer 170 may be formed as a glass substrate.

[0091] The touch sensor 200 may be disposed on the encapsulation layer 170. The touch sensor 200 may be directly disposed on the encapsulation layer 170. For example, the touch sensor 200 may directly contact the second inorganic layer 173. In other words, the encapsulation layer 170 may function as a substrate of the touch sensor 200.

[0092] Touch sensor 200 may include a touch element layer 210 and a protective layer 230. Touch element layer 210 may include touch electrodes and touch signal lines, wherein the touch signal lines are connected to the touch electrodes. The touch electrodes may be made of metal and may have a mesh shape. In other words, the touch electrodes may be formed into a metal mesh pattern, thereby providing greater flexibility to touch element layer 210.

[0093] The protective layer 230 may be provided on the touch element layer 210 and may protect the touch element layer 210. For example, the protective layer 230 may include an organic material such as an acrylic polymer. When the protective layer 230 is formed of an organic material, the flexibility of the touch sensor 200 can be increased.

[0094] refer to Figure 5 and Figure 6 A lower layer 50 may be provided between the display panel structure DP and the digitizer 70. The lower layer 50 may support the display panel structure DP and may protect the display panel structure DP from impact thereunder.

[0095] The lower layer 50 may include a transparent polymer material. For example, the lower layer 50 may include PI, PES, PA, PAR, PEI, PEN, PET, PPS, polyallyl, PC, CAT, CAP, or a combination thereof.

[0096] A buffer member 60 may be provided below the lower layer 50. The buffer member 60 may absorb external impacts and thereby prevent the display panel structure DP from being damaged or broken. The buffer member 60 may be a cushioning layer. The buffer member 60 may be formed as a single layer or a stack of multiple layers. The buffer member 60 may include an elastic material such as polyurethane resin or polyethylene resin. The buffer member 60 may be formed of a sponge-like foam material.

[0097] like Figure 5 、 Figure 6 、 Figure 8 and Figure 9As shown in , the digitizer 70 can be arranged below the display panel structure DP. The digitizer 70 can detect the approach or contact of an electronic pen (e.g., a stylus) that supports the electromagnetic resonance (EMR) method. The digitizer 70 may include a conductive circuit pattern capable of detecting external electromagnetic forces. For example, the digitizer 70 can detect the electromagnetic force emitted from the stylus using the conductive circuit pattern, and can determine the position where the strongest electromagnetic force is detected as the coordinates of the touch input. In addition, the digitizer 70 is able to distinguish the approach or contact of a part of the user's body from the approach or contact of the stylus, and therefore can support a palm rejection prevention function that ignores unintentional touches of a body part such as the palm. In other words, the digitizer 70 is able to distinguish between contact by the stylus and contact by a part of the user's body.

[0098] The digitizer 70 may include a base layer 310 , a first circuit pattern 320 , and a second circuit pattern 330 . The digitizer 70 may further include first and second adhesive layers 340 , 350 , and first and second cover layers 360 , 370 .

[0099] The base layer 310 may be flexible and may include an insulating material. The base layer 310 may include an insulating material such as PI.

[0100] The base layer 310 may have thereon a folding area FDA of the display device 10. The folding area FDA of the display device 10 may be the same as the folding area FDA of the base layer 310.

[0101] The circuit patterns may be provided on both surfaces of the base layer 310. The first circuit pattern 320 extending in the first direction DR1 may be provided on one surface (or top surface) of the base layer 310 facing the display panel structure DP or the display panel 100, and the second circuit pattern 330 extending in the second direction DR2 may be provided on the other surface (or bottom surface) of the base layer 310. In other words, the first circuit pattern 320 may be provided on the first surface of the base layer 310, and the second circuit pattern 330 may be provided on the second surface of the base layer 310, the first and second surfaces of the base layer 310 being opposite to each other.

[0102] The first circuit patterns 320 and the second circuit patterns 330 may be disposed at a predetermined distance from each other in the second direction DR2 and the first circuit patterns 330 may form a lattice structure in a plan view.

[0103] At least two first circuit patterns 320 may be electrically connected to form a loop, and at least two second circuit patterns 330 may be electrically connected to form a loop.

[0104] The first circuit pattern 320 and the second circuit pattern 330 may include a metal material such as copper (Cu), silver (Ag), nickel (Ni), or tungsten (W).

[0105] The first circuit pattern 320 and the second circuit pattern 330 are shown as rectangular loops, but the present invention is not limited thereto. Alternatively, the first circuit pattern 320 and the second circuit pattern 330 may be formed in an array of diamond or hexagonal shapes.

[0106] The first adhesive layer 340 covering the first circuit pattern 320 may be provided on a surface of the base layer 310 facing the display panel structure DP or the display panel 100. In other words, the first adhesive layer 340 may be provided on the first surface of the base layer 310. The first adhesive layer 340 may be combined with the first cover layer 360, wherein the first cover layer 360 is provided on the first adhesive layer 340 to protect the first circuit pattern 320. When the digitizer 70 is bent or folded, the first adhesive layer 340 may reduce stress applied to the first circuit pattern 320 by adjusting the position of the neutral plane.

[0107] The first adhesive layer 340 may include an organic material. For example, the first adhesive layer 340 may include an acrylic resin or an epoxy resin. For example, the first adhesive layer 340 may be formed of a pressure sensitive adhesive (PSA).

[0108] A second adhesive layer 350 covering the second circuit pattern 330 may be disposed below the base layer 310. For example, the second adhesive layer 350 may be disposed on the second surface of the base layer 310. The second adhesive layer 350 may be combined with a second cover layer 370 disposed below the second adhesive layer 350 to protect the second circuit pattern 330. When the digitizer 70 is bent or folded, the second adhesive layer 350 may reduce stress applied to the second circuit pattern 330 by adjusting the position of the neutral plane.

[0109] The second adhesive layer 350 may include an organic material. For example, the second adhesive layer 350 may include an acrylic resin or an epoxy resin. For example, the second adhesive layer 350 may be formed of PSA.

[0110] refer to Figures 8 to 10 , the first circuit pattern 320 may at least partially include a first dummy pattern 325 , and the second circuit pattern 330 may at least partially include a second dummy pattern 335 .

[0111] There is a possibility that a user may recognize the presence of the first and second circuit patterns 320 and 330 due to a height difference between an area where the first and second circuit patterns 320 and 330 exist and an area where the first and second circuit patterns 320 and 330 do not exist, and thus, the display quality of the display device 10 may be degraded.

[0112] The first dummy pattern 325 may be disposed between the first circuit patterns 320, and the second dummy pattern 335 may be disposed between the second circuit patterns 330. For example, the first dummy pattern 325 may extend in the first direction DR1 between the first circuit patterns 320 extending along the first direction D1, and the second dummy pattern 335 may extend in the second direction DR2 between the second circuit patterns 330 extending along the second direction DR2. Therefore, the distance between lines such as the first circuit pattern 320, the first dummy pattern 325, the second circuit pattern 330, and the second dummy pattern 335 can be reduced, and thus, the height difference between the area where the lines exist and the area where the lines do not exist can be reduced.

[0113] like Figure 9 As shown in , the first adhesive layer 340 may have a first thickness d1 in an area where the first circuit pattern 320 and the first dummy pattern 325 are not present, may have a second thickness d2 between the first circuit pattern 320 and the first dummy pattern 325, and may have a third thickness d3 in an overlapping area of the first adhesive layer 340 and the first circuit pattern 320. The first thickness d1 may be smaller than the second thickness d2, and the second thickness d2 may be smaller than the third thickness d3. Thus, for example, the thickness of the first adhesive layer 340 in the folding area FDA (e.g., d1) is smaller than the thickness of the first adhesive layer 340 overlapping at least one of the first circuit patterns 320 (e.g., d2).

[0114] Without the first dummy pattern 325, the height difference in the first adhesive layer 340 (e.g., the difference between the first thickness d1 and the third thickness d3) can be quite large. However, since the first dummy pattern 325 is provided between the first circuit patterns 320, the height difference in the first adhesive layer 340 (e.g., the difference between the first thickness d1 and the third thickness d3) can be significantly reduced. Therefore, the first circuit patterns 320 can be prevented from becoming visible to the user. Furthermore, since the second dummy pattern 335 is provided between the second circuit patterns 330, the second circuit patterns 330 can be prevented from becoming visible to the user.

[0115] The first dummy pattern 325 may be provided in the region of the first circuit pattern 320. When the first circuit pattern 320 is formed in a rectangular shape, the region of the first circuit pattern 320 may be a rectangular region. Similarly, the second dummy pattern 335 may be provided in the region of the second circuit pattern 330.

[0116] At least one first dummy pattern 325 may be provided in each of the regions of the first circuit pattern 320. At least one second dummy pattern 335 may be provided in each of the regions of the second circuit pattern 330. For example, if a plurality of first dummy patterns 325 are provided in each of the regions of the first circuit pattern 320, the first dummy patterns 325 may be spaced apart from each other in each of the regions of the first circuit pattern 320, and the distance between the first dummy patterns 325 may be uniform or may vary. Similarly, if a plurality of second dummy patterns 335 are provided in each of the regions of the second circuit pattern 330, the second dummy patterns 335 may be spaced apart from each other in each of the regions of the second circuit pattern 330, and the distance between the second dummy patterns 335 may be uniform or may vary.

[0117] The first dummy pattern 325 may be arranged in parallel with the longitudinal direction of the first circuit pattern 320. Figure 8 As shown in FIG, the first dummy pattern 325 may extend in a first direction DR1. The direction in which the first dummy pattern 325 extends may be parallel to the first folding line FL1 or the second folding line FL2. The second dummy pattern 335 may be arranged parallel to the longitudinal direction of the second circuit pattern 330. The second dummy pattern 335 may extend in a second direction DR2. The direction in which the second dummy pattern 335 extends may intersect the first folding line FL1 or the second folding line FL2. For example, the direction in which the second dummy pattern 335 extends may intersect the first folding line FL1 or the second folding line FL2 at right angles.

[0118] It will be understood that the first dummy pattern 325 may extend in the second direction DR2, and the second dummy pattern 335 may extend in the first direction DR1. Figure 8 The configuration shown in FIG may form a lattice or matrix when the first dummy pattern 325 and the second dummy pattern 335 overlap each other. Such a lattice of a matrix configuration may help the display device 10 have reduced wiring visibility.

[0119] The first dummy pattern 325 and the second dummy pattern 335 may include a metal material such as Cu, Ag, Ni, or W. The first dummy pattern 325 and the second dummy pattern 335 may be formed of the same material as the first circuit pattern 320 and the second circuit pattern 330, but the present invention is not limited thereto. Alternatively, the first dummy pattern 325 and the second dummy pattern 335 may be formed of a different material from the first circuit pattern 320 and the second circuit pattern 330.

[0120] The first dummy pattern 325 and the second dummy pattern 335 may not overlap with the folding area FDA of the display device 10. In other words, the first dummy pattern 325 and the second dummy pattern 335 may not be located in the folding area FDA of the display device 10. If dummy patterns are provided in the folding area FDA, the thickness and modulus of the digitizer 70 may increase, and thus, the dummy patterns may interfere with the folding of the digitizer 70. Therefore, by arranging the first dummy pattern 325 and the second dummy pattern 335 so as not to overlap with the folding area FDA, it is possible to prevent the thickness and modulus of the digitizer 70 from increasing in the folding area FDA, and it is possible to facilitate the folding of the digitizer 70.

[0121] like Figure 8 As shown in , the first dummy pattern 325 may not be provided in the portion of the first circuit pattern 320 that overlaps the folding area FDA, but may be provided in the portion of the first circuit pattern 320 that does not overlap the folding area FDA. For example, although the first circuit pattern 320 may be present in the folding area FDA, the first circuit pattern 320 does not include the first dummy pattern 325. The second dummy pattern 335 may not be provided in the portion of the second circuit pattern 330 that overlaps the folding area FDA, but may be provided in the portion of the second circuit pattern 330 that does not overlap the folding area FDA. In other words, the portion of the second circuit pattern 330 located in the folding area FDA does not include the second dummy pattern 335.

[0122] The second dummy patterns 335 may be isolated from each other. The second dummy patterns 335 may be separated from each other with the folding area FDA interposed therebetween. Since the first dummy patterns 325 and the second dummy patterns 335 are arranged so as not to overlap with the folding area FDA, it is possible to prevent an increase in thickness and modulus of the digitizer 70 in the folding area FDA, and to facilitate folding of the digitizer 70.

[0123] The display device 10 may further include an embossed tape disposed on one surface of the buffer member 60 to bond the lower layer 50 to the buffer member 60 and function as a buffer member. The display device 10 may further include a heat dissipation member disposed on one surface of the buffer member 60 to release heat emitted from the display panel structure DP. The display device 10 may further include an electromagnetic shielding filter disposed below the digitizer 70 and capable of blocking electromagnetic fields from the digitizer 70.

[0124] Figure 11 is a cross-sectional view showing a display device according to an exemplary embodiment of the present invention being touched by a stylus pen. Figure 11 Describe how the display device 10 can sense a touch by a stylus pen.

[0125] refer to Figure 11 , the top surface of the display device 10 (particularly the top surface of the protective film 40) can be touched by the stylus pen STP. The stylus pen STP may be in the form of a pen, for example, but the present invention is not limited thereto.

[0126] Once the digitizer 70 of the display device 10 is touched by the stylus STP, a scan signal is sequentially applied to the first circuit pattern 320, and a sensing signal is output to the second circuit pattern 330. The scan signal applied to the first circuit pattern 320 of the digitizer 70 generates an electromagnetic field. As the stylus STP approaches and comes close to the display device 10, the resonant circuit included in the stylus STP receives the electromagnetic field. The stylus STP then transmits the electromagnetic field toward the digitizer 70. In other words, when the electromagnetic field resonating in the stylus STP is transmitted to the digitizer 70, the second circuit pattern 330 of the digitizer 70 detects the transmitted electromagnetic field, thereby detecting the touch of the stylus STP.

[0127] In the following, reference will be made to Figures 12 to 27 An embodiment of the digitizer 70 included in the display device 10 will be described.

[0128] Figure 12 is a plan view illustrating a first circuit pattern and a second circuit pattern of a digitizer according to another exemplary embodiment of the present invention. Figures 13 to 20 is a plan view illustrating a first circuit pattern and a second circuit pattern of a digitizer according to other exemplary embodiments of the present invention. Figures 12 to 20 A layout view of a first circuit pattern and a first dummy pattern on a top surface of each digitizer is shown together with a layout view of a second circuit pattern and a second dummy pattern on a bottom surface of each digitizer.

[0129] refer to Figures 12 to 20, the digitizer 70 may include a first circuit pattern 320 and a second circuit pattern 330, and may further include a first dummy pattern 325 and a second dummy pattern 335. In addition to the first dummy pattern 325 and the second dummy pattern 335 being provided in the folding area FDA, Figures 12 to 20 The implementation method and Figure 10 The implementation is similar to that of Figure 10 The differences between the embodiments are described below.

[0130] refer to Figure 12 The first dummy pattern 325 may include a first upper dummy pattern 326 and a second upper dummy pattern 327, wherein the first upper dummy pattern 326 is disposed in an area outside the folding area FDA, and the second upper dummy pattern 327 is disposed in the folding area FDA. The first upper dummy pattern 326 may not overlap with the folding area FDA, and the second upper dummy pattern 327 may overlap with the folding area FDA. Both the first upper dummy pattern 326 and the second upper dummy pattern 327 may extend in the second direction DR2.

[0131] The area occupied by the second upper dummy pattern 327 overlapping the folding area FDA may be different from the area occupied by the first upper dummy pattern 326 not overlapping the folding area FDA. The area occupied by the second upper dummy pattern 327 overlapping the folding area FDA may be smaller than the area occupied by the first upper dummy pattern 326 not overlapping the folding area FDA. For example, the number of second upper dummy patterns 327 may be smaller than the number of first upper dummy patterns 326, and therefore, the area occupied by the second upper dummy pattern 327 may be smaller than the area occupied by the first upper dummy pattern 326. As an example, the area occupied by the second upper dummy pattern 327 may be different from the area occupied by the first upper dummy pattern 326 for each first circuit pattern 320. For example, because the number of second upper dummy patterns 327 may be smaller than the number of first upper dummy patterns 326 for each first circuit pattern 320, the area occupied by the second upper dummy pattern 327 may be smaller than the area occupied by the first upper dummy pattern 326 for each first circuit pattern 320.

[0132] In the case where a plurality of second upper dummy patterns 327 are provided, the distance between the second upper dummy patterns 327 may be greater than the distance between the first upper dummy patterns 326. As described above, if the dummy patterns are provided in the folding area FDA, the display device 10 may not be easily folded. However, since the second upper dummy patterns 327 overlapping the folding area FDA occupy a smaller area than the first upper dummy patterns 326 not overlapping the folding area FDA, the folding of the display device 10 may not be disturbed by the second upper dummy patterns 327.

[0133] The second dummy pattern 335 may include a first lower dummy pattern 336 and a second lower dummy pattern 338, wherein the first lower dummy pattern 336 is arranged in an area other than the folding area FDA, and the second lower dummy pattern 338 is arranged in the folding area FDA. The first lower dummy pattern 336 may not overlap with the folding area FDA, and the second lower dummy pattern 338 may overlap with the folding area FDA. The first lower dummy pattern 336 and the second lower dummy pattern 338 may extend in a first direction DR1, wherein the first direction DR1 is different from the extending direction of the first upper dummy pattern 326 and the second upper dummy pattern 327.

[0134] The area occupied by the second lower dummy pattern 338 overlapping the folding area FDA may be different from the area occupied by the first lower dummy pattern 336 not overlapping the folding area FDA. The area occupied by the second lower dummy pattern 338 overlapping the folding area FDA may be smaller than the area occupied by the first lower dummy pattern 336 not overlapping the folding area FDA. For example, the number of second lower dummy patterns 338 may be smaller than the number of first lower dummy patterns 336, and therefore, the area occupied by the second lower dummy pattern 338 may be smaller than the area occupied by the first lower dummy pattern 336. As an example, the area occupied by the second lower dummy pattern 338 may be different from the area occupied by the first lower dummy pattern 336 for each second circuit pattern 330. For example, because the number of second lower dummy patterns 338 may be smaller than the number of first lower dummy patterns 336 for each second circuit pattern 330, the area occupied by the second lower dummy pattern 338 may be smaller than the area occupied by the first lower dummy pattern 336 for each second circuit pattern 330.

[0135] In the case where a plurality of second lower dummy patterns 338 are provided, a distance between the second lower dummy patterns 338 may be greater than a distance between the first lower dummy patterns 336. Since the second lower dummy patterns 338 overlapping the folding area FDA occupy a smaller area than the first lower dummy patterns 336 not overlapping the folding area FDA, folding of the display device 10 may not be disturbed by the second lower dummy patterns 338.

[0136] refer to Figure 13 The second dummy pattern 335 may include a first lower dummy pattern 336 and a second lower dummy pattern 338 , wherein the first lower dummy pattern 336 is disposed in the folding area FDA and the second lower dummy pattern 338 is disposed in the folding area FDA. Figure 13 The implementation method and Figure 12 The embodiment of the present invention is different in that the second lower dummy pattern 338 extends in a direction parallel to the first folding line FL1 and the second folding line FL2. For example, the second lower dummy pattern 338 extends in the same direction as the second upper dummy pattern 327.

[0137] like Figure 13 As shown in , the direction in which the first lower dummy pattern 336 extends may perpendicularly intersect the first and second folding lines FL1 and FL2. On the other hand, the direction in which the second lower dummy pattern 338 extends may perpendicularly intersect the direction in which the first lower dummy pattern 336 extends and may be parallel to the first and second folding lines FL1 and FL2.

[0138] Since the second lower dummy pattern 338 extends in a direction parallel to the first and second folding lines FL1 and FL2 , the repulsive force of the second lower dummy pattern 338 during folding of the display device 10 can be reduced, thereby facilitating folding of the display device 10 .

[0139] According to an exemplary embodiment of the present invention, the display device 10 may include a display panel DP and a digitizer 70 overlapping the display panel DP. The digitizer 70 includes a base layer 310, a folding area FDA, a first circuit pattern 320, a plurality of first dummy patterns 325, a second circuit pattern 330, and a plurality of second dummy patterns 335. The first circuit pattern 320 is disposed on a first surface of the base layer 310 and extends in a first direction (e.g., DR2). The plurality of first dummy patterns 325 are disposed in an area defined by the first circuit pattern 320. The second circuit pattern 330 is disposed on a second surface of the base layer 310 and extends in a second direction (e.g., DR1) intersecting the first direction. The plurality of second dummy patterns 335 are disposed in an area defined by the second circuit pattern 330. The second dummy patterns 335 may include a plurality of first lower dummy patterns 336 and a plurality of second lower dummy patterns 338. The plurality of first lower dummy patterns 336 do not overlap the folding area FDA, and the plurality of second lower dummy patterns 338 overlap the folding area FDA.

[0140] In an exemplary embodiment of the present invention, an area occupied by the second lower dummy pattern 338 is smaller than an area occupied by the first lower dummy pattern 336 .

[0141] In an exemplary embodiment of the present invention, the first dummy pattern 325 may include a plurality of first upper dummy patterns 326 and a plurality of second upper dummy patterns 327 , wherein the plurality of first upper dummy patterns 326 do not overlap with the folding area FDA and the plurality of second upper dummy patterns 327 overlap with the folding area FDA.

[0142] In an exemplary embodiment of the present invention, an area occupied by the second upper dummy pattern 327 is different from an area occupied by the first upper dummy pattern 326 .

[0143] Figure 14 The implementation method and Figure 13 The difference between the embodiments is that the number of second upper dummy patterns 327 is the same as the number of first upper dummy patterns 326 for each first circuit pattern 320, and the number of second lower dummy patterns 338 is the same as the number of first lower dummy patterns 336 for each second circuit pattern 330.

[0144] refer to Figure 14 The direction in which the second upper dummy pattern 327 and the direction in which the second lower dummy pattern 338 extends can be parallel to the first folding line FL1 and the second folding line FL2. In other words, the second upper dummy pattern 327 and the second lower dummy pattern 338 can extend in the same direction. The direction in which the second upper dummy pattern 327 and the direction in which the second lower dummy pattern 338 extends can be parallel to each other. Therefore, when the number of second upper dummy patterns 327 and second lower dummy patterns 338 increases, the repulsive force of the second upper dummy patterns 327 and second lower dummy patterns 338 during folding of the display device 10 can be reduced, thereby facilitating folding of the display device 10.

[0145] Figure 15 The implementation method and Figure 14 The difference between the embodiments is that the second upper dummy pattern 327 and the second lower dummy pattern 338 are each divided into multiple patterns, the number of the second upper dummy patterns 327 is greater than the number of the first upper dummy patterns 326 for each first circuit pattern 320, and the number of the second lower dummy patterns 338 is greater than the number of the first lower dummy patterns 336 for each second circuit pattern 330.

[0146] refer to Figure 15The second upper dummy pattern 327 may extend parallel to the first folding line FL1 and the second folding line FL2, and each may be composed of a plurality of separate patterns. In an exemplary embodiment of the present invention, the second upper dummy pattern 327 may be formed as a dotted line or a dashed line. The second lower dummy pattern 338 may extend parallel to the first folding line FL1 and the second folding line FL2, and each may be composed of a plurality of separate patterns. In an exemplary embodiment of the present invention, the second lower dummy pattern 338 may be formed as a dotted line or a dashed line.

[0147] Since the second upper dummy pattern 327 and the second lower dummy pattern 338 are formed as an array of multiple separated patterns, the stress applied to the second upper dummy pattern 327 and the second lower dummy pattern 338 during folding of the display device 10 can be dispersed, thereby facilitating the folding of the display device 10.

[0148] Figure 16 The implementation method and Figure 15 The embodiment differs in that the number of second upper dummy patterns 327 is less than the number of first upper dummy patterns 326 for each first circuit pattern 320 , and the number of second lower dummy patterns 338 is less than the number of first lower dummy patterns 336 for each second circuit pattern 330 .

[0149] refer to Figure 16 , the number of the second upper dummy patterns 327 is less than the number of the first upper dummy patterns 326 for each first circuit pattern 320. Here, the second upper dummy patterns 327 may be formed as dotted lines. In this case, the line forming each of the second upper dummy patterns 327 may refer to each line segment of the dotted line. Since the number of the second upper dummy patterns 327 is less than the number of the first upper dummy patterns 326 for each first circuit pattern 320, the number of the second upper dummy patterns 327 arranged in the vertical direction with respect to the first folding line FL1 and the second folding line FL2 is reduced, and thus, the repulsive force of the second upper dummy patterns 327 during folding of the display device 10 can be reduced.

[0150] Similarly, since the number of second lower dummy patterns 338 is less than the number of first lower dummy patterns 336 for each second circuit pattern 330, the number of second lower dummy patterns 338 arranged in the vertical direction relative to the first folding line FL1 and the second folding line FL2 is reduced, and therefore, the repulsive force of the second lower dummy patterns 338 during folding of the display device 10 can be reduced.

[0151] Figure 17 The implementation method and Figure 14The embodiment differs from the embodiment in that the direction in which the second lower dummy pattern 338 extends perpendicularly intersects the first folding line FL1 and the second folding line FL2, and the second lower dummy pattern 338 is formed as an array of a plurality of separate patterns.

[0152] refer to Figure 17 The direction in which the second lower dummy pattern 338 extends can be parallel to the direction in which the first lower dummy pattern 336 extends, and can intersect perpendicularly with the first folding line FL1 and the second folding line FL2. For example, the second lower dummy pattern 338 can extend in the first direction DR1. However, since the second lower dummy pattern 338 is formed as an array of a plurality of separated patterns, the repulsive force of the second lower dummy pattern 338 during folding of the display device 10 can be dispersed, thereby facilitating folding of the display device 10.

[0153] Figure 18 The implementation method and Figure 12 The embodiment of FIG. 4 is different in that the second lower dummy pattern 338 is formed as an array of separate patterns.

[0154] refer to Figure 18 Since the second lower dummy pattern 338 is formed as an array of separation patterns, the repulsive force of the second lower dummy pattern 338 during folding of the display device 10 can be dispersed, thereby facilitating the folding of the display device 10.

[0155] Figure 19 The implementation method and Figure 14 The embodiment differs in that the direction in which the second upper dummy pattern 327 extends and the direction in which the second lower dummy pattern 338 extends may intersect with the first folding line FL1. In addition, the direction in which the second upper dummy pattern 327 extends and the direction in which the second lower dummy pattern 338 extends may intersect with the second folding line FL2.

[0156] refer to Figure 19 The direction in which the second upper dummy pattern 327 extends may intersect the first upper dummy pattern 326 and the first folding line FL1. For example, an extension line L1 from one of the second upper dummy patterns 327 may intersect the first folding line FL1. The extension line L1 may form a predetermined angle with the first folding line FL1. The extension line L1 may form a first positive angle θ1 with the first folding line FL1, and the first positive angle θ1 may be less than 90 degrees. Alternatively, the first positive angle θ1 may be 20 to 70 degrees. Further alternatively, the first positive angle θ1 may be 40 to 60 degrees.

[0157] The direction in which the second lower dummy pattern 338 extends may intersect the first lower dummy pattern 336 and the first folding line FL1. For example, an extension line L2 from one of the second lower dummy patterns 338 may intersect the first folding line FL1. The extension line L2 may form a predetermined angle with the first folding line FL1. The extension line L2 may form a second positive angle θ2 with the first folding line FL1, and the second positive angle θ2 may be less than 90 degrees. Alternatively, the second positive angle θ2 may be between 20 and 70 degrees. Further alternatively, the second positive angle θ2 may be between 40 and 60 degrees.

[0158] The first positive angle θ1 may be the same as the second positive angle θ2. Alternatively, the first positive angle θ1 may be different from the second positive angle θ2.

[0159] Since the direction in which the second upper dummy pattern 327 extends and the direction in which the second lower dummy pattern 338 extends intersect with the first folding line FL1, the repulsive force of the second upper dummy pattern 327 and the second lower dummy pattern 338 during the folding of the display device 10 can be reduced, thereby facilitating the folding of the display device 10.

[0160] Figure 20 The implementation method and Figure 19 The embodiment of FIG. 3 is different in that an extension line L2 of one of the second lower dummy patterns 338 and the first folding line FL1 form a first negative angle θ3 with each other.

[0161] refer to Figure 20 , the extended line L2 may form a first negative angle θ3 with the first folding line FL1. The first negative angle θ3 may be less than 90 degrees. Alternatively, the first negative angle θ3 may be 20 to 70 degrees. Further alternatively, the first negative angle θ3 may be 40 to 60 degrees. The first positive angle θ1 formed between the extended line L1 of one of the second upper dummy patterns 327 and the first folding line FL1 may be different from the first negative angle θ3.

[0162] Since the second lower dummy pattern 338 is formed so that the extension line L2 and the first folding line FL1 form a first negative angle θ3 with each other, the repulsive force of the second lower dummy pattern 338 during folding of the display device 10 can be reduced, thereby facilitating the folding of the display device 10.

[0163] Figure 21 is a plan view illustrating a first circuit pattern and a second circuit pattern of a digitizer according to another exemplary embodiment of the present invention. Figures 22 to 27 is a plan view illustrating a first circuit pattern and a second circuit pattern of a digitizer according to an exemplary embodiment of the present invention. Figures 22 to 27A layout view of a first circuit pattern and a first dummy pattern on a top surface of each digitizer is shown together with a layout view of a second circuit pattern and a second dummy pattern on a bottom surface of each digitizer.

[0164] refer to Figures 21 to 27 , the digitizer 70 may include a first circuit pattern 320 and a second circuit pattern 330. In addition to the longitudinal direction of the first circuit pattern 320 and the longitudinal direction of the second circuit pattern 330 intersecting with the first folding line FL1, Figures 21 to 27 The implementation method and Figure 10 The implementation of is almost the same, and therefore, the following will mainly focus on Figure 10 The differences between the embodiments are described below.

[0165] refer to Figure 21 , a first circuit pattern 320 extending in a predetermined direction may be provided on one surface (or top surface) of the base layer 310, and a second circuit pattern 330 extending in another predetermined direction may be provided on the other surface (or bottom surface) of the base layer 310. For example, the first circuit pattern 320 may extend in a first diagonal direction, and the second circuit pattern 330 may extend in a second diagonal direction.

[0166] The first circuit pattern 320 and the second circuit pattern 330 may intersect each other in a plan view. For example, the first circuit pattern 320 and the second circuit pattern 330 may intersect each other to form a lattice structure. In other words, when the first circuit pattern 320 and the second circuit pattern 330 overlap, the first circuit pattern 320 and the second circuit pattern 330 form a lattice structure.

[0167] The first circuit pattern 320 may extend in a predetermined direction, and the predetermined direction may be a longitudinal direction of the first circuit pattern 320. The longitudinal direction of the first circuit pattern 320 may be a direction in which the long side 322 of each of the first circuit patterns 320 extends. The longitudinal direction of the first circuit pattern 320 may intersect with the first folding line FL1.

[0168] For example, the long side 322 of each of the first circuit patterns 320 may intersect the first folding line FL1. Here, the long side 322 of each of the first circuit patterns 320 may form a predetermined angle with the first folding line FL1. The long side 322 of each of the first circuit patterns 320 may form a third positive angle θ4 with the first folding line FL1, and the third positive angle θ4 may be less than 90 degrees. Alternatively, the third positive angle θ4 may be 20 to 70 degrees. Further alternatively, the third positive angle θ4 may be 40 to 60 degrees.

[0169] The second circuit pattern 330 may extend in a predetermined direction, and the predetermined direction may be a longitudinal direction of the second circuit pattern 330. The longitudinal direction of the second circuit pattern 330 may be a direction in which the long side 332 of each of the second circuit patterns 330 extends. The longitudinal direction of the second circuit pattern 330 may intersect the first folding line FL1.

[0170] For example, the long side 332 of each second circuit pattern 330 may intersect the first folding line FL1. Here, the long side 332 of each second circuit pattern 330 may form a predetermined angle with the first folding line FL1. The long side 332 of each second circuit pattern 330 may form a second negative angle θ5 with the first folding line FL1, and the second negative angle θ5 may be less than 90 degrees. Alternatively, the second negative angle θ5 may be 20 to 70 degrees. Further alternatively, the second negative angle θ5 may be 40 to 60 degrees.

[0171] Since the direction in which the second circuit pattern 330 extends intersects the first folding line FL1, the repulsive force of the second circuit pattern 330 during folding of the display device 10 can be reduced, thereby facilitating the folding of the display device 10. Furthermore, since the direction in which the first circuit pattern 320 extends intersects not only the first folding line FL1 but also the second circuit pattern 330, the first circuit pattern 320 and the second circuit pattern 330 can detect a touch of the stylus pen STP.

[0172] Figure 22 The implementation method and Figure 21 The embodiment of FIG. 1 is different in that the first circuit pattern 320 at least partially includes a first dummy pattern 325 , and the second circuit pattern 330 at least partially includes a second dummy pattern 335 .

[0173] refer to Figure 22 , the first dummy pattern 325 can be arranged parallel to the longitudinal direction of the first circuit pattern 320. The direction in which the first dummy pattern 325 extends can intersect with the first folding line FL1 or the second folding line FL2. The second dummy pattern 335 can be arranged parallel to the longitudinal direction of the second circuit pattern 330. The direction in which the second dummy pattern 335 extends can intersect with the first folding line FL1 or the second folding line FL2. For example, both the first dummy pattern 325 and the second dummy pattern 335 can intersect with the first folding line FL1. Since both the first dummy pattern 325 and the second dummy pattern 335 intersect with the first folding line FL1, the repulsive force of the first dummy pattern 325 and the second dummy pattern 335 during folding of the display device 10 can be reduced, thereby facilitating folding of the display device 10.

[0174] Figure 23 The implementation method and Figure 22 The difference between the embodiments is that the number of first dummy patterns 325 overlapping the folding area FDA is smaller than the number of first dummy patterns 325 not overlapping the folding area FDA, and the number of second dummy patterns 335 overlapping the folding area FDA is smaller than the number of second dummy patterns 335 not overlapping the folding area FDA.

[0175] refer to Figure 23 The first dummy pattern 325 may include a first upper dummy pattern 326 and a second upper dummy pattern 327, wherein the first upper dummy pattern 326 is disposed in an area other than the folding area FDA, and the second upper dummy pattern 327 is disposed in the folding area FDA. The first upper dummy pattern 326 may not overlap with the folding area FDA, and the second upper dummy pattern 327 may overlap with the folding area FDA.

[0176] One or more second upper dummy patterns 327 may overlap the folding area FDA. The number of second upper dummy patterns 327 may be smaller than the number of first upper dummy patterns 326. When multiple second upper dummy patterns 327 are provided, the distance between the second upper dummy patterns 327 may be greater than the distance between the first upper dummy patterns 326. As described above, if a dummy pattern is provided in the folding area FDA, the display device 10 may not be easily folded. However, since the number of second upper dummy patterns 327 overlapping the folding area FDA is smaller than the number of first upper dummy patterns 326 not overlapping the folding area FDA, the folding of the display device 10 may not be affected by the second upper dummy patterns 327.

[0177] The second dummy pattern 335 may include a first lower dummy pattern 336 and a second lower dummy pattern 338, wherein the first lower dummy pattern 336 is disposed in an area other than the folding area FDA, and the second lower dummy pattern 338 is disposed in the folding area FDA. The first lower dummy pattern 336 may not overlap with the folding area FDA, and the second lower dummy pattern 338 may overlap with the folding area FDA.

[0178] One or more second lower dummy patterns 338 may be provided to overlap the folding area FDA. The number of the second lower dummy patterns 338 may be smaller than the number of the first lower dummy patterns 336. When a plurality of second lower dummy patterns 338 are provided, the distance between the second lower dummy patterns 338 may be greater than the distance between the first lower dummy patterns 336. Since the number of the second lower dummy patterns 338 overlapping the folding area FDA is smaller than the number of the first lower dummy patterns 336 not overlapping the folding area FDA, the folding of the display device 10 may not be affected by the second lower dummy patterns 338.

[0179] Figure 24 The implementation method and Figure 23 The embodiment of FIG. 1 is different in that the second upper dummy pattern 327 and the second lower dummy pattern 338 are formed as an array of separate patterns.

[0180] refer to Figure 24 The second upper dummy pattern 327 may extend to intersect the first folding line FL1 and the second folding line FL2, and each may be composed of a plurality of separate patterns. In an exemplary embodiment of the present invention, the second upper dummy pattern 327 may be formed as a dotted line or a dashed line. The second lower dummy pattern 338 may extend to intersect the first folding line FL1 and the second folding line FL2, and each may be composed of a plurality of separate patterns. In an exemplary embodiment of the present invention, the second lower dummy pattern 338 may be formed as a dotted line or a dashed line. The second upper dummy pattern 327 and the second lower dummy pattern 338 may extend in different directions from each other.

[0181] Since the second upper dummy pattern 327 and the second lower dummy pattern 338 are formed as an array of multiple separated patterns, the stress applied to the second upper dummy pattern 327 and the second lower dummy pattern 338 during folding of the display device 10 can be dispersed, thereby facilitating the folding of the display device 10.

[0182] Figure 25 The implementation method and Figure 23 The embodiment of the present invention differs in that the second upper dummy pattern 327 extends in a direction parallel to the first and second folding lines FL1 and FL2, and the second lower dummy pattern 338 extends in a direction parallel to the first and second folding lines FL1 and FL2. In other words, the second upper dummy pattern 327 and the second lower dummy pattern 338 may extend in the same direction.

[0183] refer to Figure 25 The direction in which the second upper dummy pattern 327 extends intersects the direction in which the first upper dummy pattern 326 extends and may be parallel to the first and second folding lines FL1 and FL2. Furthermore, the direction in which the second lower dummy pattern 338 extends intersects the direction in which the first lower dummy pattern 336 extends and may be parallel to the first and second folding lines FL1 and FL2. The direction in which the second upper dummy pattern 327 extends may be parallel to and identical to the direction in which the second lower dummy pattern 338 extends.

[0184] Since the direction in which the second upper dummy pattern 327 extends and the direction in which the second lower dummy pattern 338 extends are parallel to the first folding line FL1 and the second folding line FL2, the repulsive force of the second upper dummy pattern 327 and the second lower dummy pattern 338 during the folding of the display device 10 can be reduced, thereby promoting the folding of the display device 10.

[0185] Figure 26 The implementation method and Figure 25 The embodiment differs from that of FIG. 1 in that the number of the second upper dummy patterns 327 is smaller than that of the first upper dummy patterns 326 , and the number of the second lower dummy patterns 338 is smaller than that of the first lower dummy patterns 336 .

[0186] refer to Figure 26 , the number of the second upper dummy patterns 327 may be smaller than the number of the first upper dummy patterns 326, and thus, the number of the second upper dummy patterns 327 arranged in the vertical direction with respect to the first folding line FL1 and the second folding line FL2 is reduced. Therefore, it is possible to reduce the repulsive force of the second upper dummy patterns 327 during folding of the display device 10.

[0187] Similarly, the number of the second lower dummy patterns 338 may be smaller than the number of the first lower dummy patterns 336, and thus, the number of the second lower dummy patterns 338 arranged in the vertical direction relative to the first folding line FL1 and the second folding line FL2 is reduced. Therefore, it is possible to reduce the repulsive force of the second lower dummy patterns 338 during folding of the display device 10.

[0188] Figure 27 The implementation method and Figure 25 The embodiment differs in that the direction in which the second upper dummy pattern 327 extends intersects the first upper dummy pattern 326 and the first folding line FL1, and the direction in which the second lower dummy pattern 338 extends intersects the first lower dummy pattern 336 and the first folding line FL1.

[0189] refer to Figure 27 The direction in which the second upper dummy pattern 327 extends may intersect the first upper dummy pattern 326 and the first folding line FL1. For example, an extension line L1 of one of the second upper dummy patterns 327 may intersect the first folding line FL1. Here, the extension line L1 and the first folding line FL1 may form a predetermined angle with each other. The extension line L1 may form a third negative angle θ6 with the first folding line FL1, and the third negative angle θ6 may be less than 90 degrees. Alternatively, the third negative angle θ6 may be 20 to 70 degrees. Further alternatively, the third negative angle θ6 may be 40 to 60 degrees.

[0190] The direction in which the second lower dummy pattern 338 extends may intersect the first lower dummy pattern 336 and the first folding line FL1. For example, an extension line L2 of one of the second lower dummy patterns 338 may intersect the first folding line FL1. Here, the extension line L2 and the first folding line FL1 may form a predetermined angle. The extension line L2 may form a fourth positive angle θ7 with the first folding line FL1, and the fourth positive angle θ7 may be less than 90 degrees. Alternatively, the fourth positive angle θ7 may be between 20 and 70 degrees. Furthermore, the fourth positive angle θ7 may be between 40 and 60 degrees.

[0191] The third negative angle θ6 may be the same as the fourth positive angle θ7. Alternatively, the third negative angle θ6 may be different from the fourth positive angle θ7.

[0192] Since the direction in which the second upper dummy pattern 327 extends intersects with the first upper dummy pattern 326 and the first folding line FL1, and the direction in which the second lower dummy pattern 338 extends intersects with the first lower dummy pattern 336 and the first folding line FL1, the repulsive force of the second upper dummy pattern 327 and the second lower dummy pattern 338 during the folding of the display device 10 can be reduced, thereby promoting the folding of the display device 10.

[0193] Hereinafter, test results obtained from a display device including a digitizer according to the aforementioned embodiment will be described. In order to test the digitizer according to the aforementioned embodiment, a 6.7-inch foldable display device each including an OLED and a digitizer was manufactured. In the following description, Embodiment 1 is compared with a display device including a digitizer having Figure 10 The display device of the digitizer of the circuit pattern configuration corresponds to the embodiment 2, which includes Figure 12 The embodiment 3 corresponds to a display device having a digitizer configured with a circuit pattern of Figure 18 The display device of the digitizer of the circuit pattern configuration corresponds to the embodiment 4 and includes Figure 13 The display device of the digitizer of the circuit pattern configuration corresponds to the embodiment 5, which includes Figure 16 The display device of the digitizer of the circuit pattern configuration corresponds to the embodiment 6, which includes Figure 21 The embodiment 7 corresponds to a display device having a digitizer configured with a circuit pattern. Figure 23 The display device of the digitizer of the circuit pattern configuration corresponds to the embodiment 8, and the embodiment 8 includes Figure 24 The circuit pattern configuration of the digitizer corresponds to the display device.

[0194] The display devices according to Embodiments 1 to 8 were tested for whether the circuit patterns of their digitizers were visible to the naked eye after repeated folding and unfolding, and the results are shown in Table 1 below. Referring to Table 1, "Folding Count" refers to the number of times each display device was folded and unfolded until the digitizer of each display device stopped functioning properly.

[0195] Visibility Fold Count Implementation Method 1 Slightly visible 200000 Implementation Method 2 Very slightly visible 100000 Implementation 3 Very slightly visible 150000 Implementation 4 Very slightly visible 170000 Implementation 5 Very slightly visible 200000 Implementation Method 6 Slightly visible 200000 Implementation 7 Very slightly visible 150000 Implementation 8 Very slightly visible 200000

[0196] Table 1

[0197] As shown in Table 1, the display devices according to Embodiments 1 to 8 have a digitizer circuit pattern that is "slightly visible" or "very slightly visible" and a fold count of at least 100,000. For example, the display devices according to Embodiments 5 and 8 have a digitizer circuit pattern that is "very slightly visible" and a fold count of 200,000 or greater. As can be seen from Table 1, a digitizer having fewer dummy patterns (e.g., in the form of separate patterns) in its fold area provides excellent performance.

[0198] Exemplary embodiments of the present invention provide a display device including a digitizer having increased flexibility.

[0199] Exemplary embodiments of the present invention also provide a display device including a digitizer with reduced wiring visibility.

[0200] Although exemplary embodiments of the present invention have been described with reference to the accompanying drawings, those skilled in the art will appreciate that various modifications and changes may be made in the exemplary embodiments without departing from the scope of the present invention as set forth in the claims.

Claims

1. Display devices, including: Display panel; as well as a digitizer, overlapping with the display panel, in, The digitizer includes a base layer, a folding area, a first circuit pattern, a plurality of first dummy patterns, a second circuit pattern, and a plurality of second dummy patterns, wherein the first circuit pattern is arranged on a first surface of the base layer and extends in a first direction, the plurality of first dummy patterns are arranged in a region defined by the first circuit pattern, the second circuit pattern is arranged on a second surface of the base layer and extends in a second direction intersecting the first direction, and the plurality of second dummy patterns are arranged in a region defined by the second circuit pattern. The plurality of second dummy patterns include a plurality of first lower dummy patterns and a plurality of second lower dummy patterns, wherein the plurality of first lower dummy patterns do not overlap with the folding area, and the plurality of second lower dummy patterns overlap with the folding area, and An area occupied by the plurality of second lower dummy patterns is different from an area occupied by the plurality of first lower dummy patterns.

2. The display device according to claim 1, wherein An area occupied by the plurality of second lower dummy patterns is smaller than an area occupied by the plurality of first lower dummy patterns.

3. The display device according to claim 1, wherein The number of the plurality of second lower dummy patterns is greater than the number of the first lower dummy patterns for each of the second circuit patterns.

4. The display device according to claim 3, wherein At least one of the plurality of second lower dummy patterns is divided into a plurality of parts.

5. The display device according to claim 2, wherein The number of the plurality of second lower dummy patterns is smaller than the number of the plurality of first lower dummy patterns. The display device according to claim 5 , wherein: At least one of the plurality of second lower dummy patterns is uninterrupted.

7. The display device according to claim 1, wherein The plurality of first dummy patterns include a plurality of first upper dummy patterns and a plurality of second upper dummy patterns, wherein the plurality of first upper dummy patterns do not overlap with the folding area, and the plurality of second upper dummy patterns overlap with the folding area, and An area occupied by the plurality of second upper dummy patterns is different from an area occupied by the plurality of first upper dummy patterns.

8. The display device according to claim 7, wherein The number of the plurality of second upper dummy patterns is greater than the number of the first upper dummy patterns for each of the first circuit patterns.

9. The display device according to claim 8, wherein At least one of the plurality of second upper dummy patterns is divided into a plurality of parts.

10. The display device according to claim 7, wherein The number of the plurality of second upper dummy patterns is smaller than the number of the plurality of first upper dummy patterns.

11. The display device according to claim 10, wherein At least one of the plurality of second upper dummy patterns is uninterrupted.

12. Display devices, including: Display panel; as well as a digitizer, overlapping with the display panel, in, The digitizer includes a base layer, a folding area, a first circuit pattern, a plurality of first dummy patterns, a second circuit pattern, and a plurality of second dummy patterns, wherein the first circuit pattern is arranged on a first surface of the base layer and extends in a first direction, the plurality of first dummy patterns are arranged in an area within the first circuit pattern, the second circuit pattern is arranged on a second surface of the base layer and extends in a second direction intersecting the first direction, and the plurality of second dummy patterns are arranged in an area within the second circuit pattern. The plurality of first dummy patterns include a plurality of first upper dummy patterns and a plurality of second upper dummy patterns, wherein the plurality of first upper dummy patterns do not overlap with the folding area, and the plurality of second upper dummy patterns overlap with the folding area, and A direction in which the plurality of second upper dummy patterns extend intersects a direction in which the plurality of first upper dummy patterns extend.

13. The display device according to claim 12, wherein The folding area includes a folding line, wherein the folding line is a long side of the folding area.

14. The display device according to claim 13, wherein The direction in which the plurality of second upper dummy patterns extend intersects the folding line, and The direction in which the plurality of first upper dummy patterns extend is parallel to the folding line.

15. The display device according to claim 13, wherein The direction in which the plurality of second upper dummy patterns extend is parallel to the folding line, and The direction in which the plurality of first upper dummy patterns extend intersects the folding line.

16. The display device according to claim 13, wherein The plurality of second dummy patterns include a plurality of first lower dummy patterns and a plurality of second lower dummy patterns, wherein the plurality of first lower dummy patterns do not overlap the folding area, and the plurality of second lower dummy patterns overlap the folding area.

17. The display device according to claim 16, wherein A direction in which the plurality of second lower dummy patterns extend intersects both a direction in which the plurality of first lower dummy patterns extend and the folding line.

18. The display device according to claim 16, wherein A direction in which the plurality of second lower dummy patterns extend intersects a direction in which the plurality of first lower dummy patterns extend and is parallel to the folding line.

19. Display devices, including: Display panel; as well as a digitizer, overlapping with the display panel, in, The digitizer includes a base layer, a folding area, a first circuit pattern, a plurality of first dummy patterns, a second circuit pattern, and a plurality of second dummy patterns, wherein the first circuit pattern is provided on a first surface of the base layer and extends in a first direction, the plurality of first dummy patterns are provided in a region formed by the first circuit pattern, the second circuit pattern is provided on a second surface of the base layer and extends in a second direction intersecting the first direction, and the plurality of second dummy patterns are provided in a region formed by the second circuit pattern, and The plurality of first dummy patterns and the plurality of second dummy patterns do not overlap with the folding area.

20. The display device according to claim 19, wherein The plurality of second dummy patterns are disposed adjacent to each other, and the folding area is interposed between the plurality of second dummy patterns.

21. Display devices, including: Display panel; as well as a digitizer, overlapping with the display panel, The digitizer includes a base layer, a folding area, a plurality of first circuit patterns, and a plurality of second circuit patterns, wherein the plurality of first circuit patterns are located on a first side of the base layer, and the plurality of second circuit patterns are located on a second side of the base layer. At least one first circuit pattern among the plurality of first circuit patterns includes a plurality of first dummy patterns overlapping with the base layer and not located in the folding area, and at least one second circuit pattern among the plurality of second circuit patterns includes a plurality of second dummy patterns overlapping with the base layer and not located in the folding area.

22. The display device according to claim 21, wherein At least one first dummy pattern among the plurality of first dummy patterns overlaps with at least one second dummy pattern among the plurality of second dummy patterns.

23. The display device according to claim 22, wherein The at least one first circuit pattern extends in a first direction, and the at least one second circuit pattern extends in a second direction crossing the first direction. 24 . The display device of claim 21 , further comprising an adhesive layer overlapping the at least one first circuit pattern and in contact with the first side of the base layer.

25. The display device according to claim 24, wherein The thickness of the adhesive layer in the folding region is smaller than the thickness of the adhesive layer in a region overlapping the at least one first circuit pattern.

Images