Digitizer and display device

Abstract

The invention relates to a digitizer and a display device. The digitizer includes: a folded portion including a first hole, a second hole, and a third hole, the second hole being on one side of the first hole, the third hole being on one side of the first hole and the second hole; a first non-folded portion on one side of the folded portion; a second non-folded portion on the other side of the folded portion; a first loop group including a loop having a long side; and a second loop group including loops having long sides, in which the folded portion includes a first row in which the first hole and the third hole overlap, and a second row in which the second hole and the third hole overlap, among the loops in the first loop group, in which the first hole and the third hole overlap, and in which the second hole and the third hole overlap. Each loop at least partially overlapping the folded portion includes lines across the folded portion along the first row or the second row, and the lines are equal in number in the first row and the second row.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to and the benefit of Korean Patent Application No. 10-2024-0041632 filed on March 27, 2024, in the Korean Intellectual Property Office, the disclosure of which is incorporated herein by reference in its entirety. Technical Field

[0003] Aspects of some embodiments of the present disclosure relate to a digitizer and a display device including the digitizer. Background Art

[0004] As information-oriented society develops, there are increasing demands for display devices for displaying information in various ways. For example, display devices can be used in various electronic devices such as smartphones, digital cameras, laptop computers, navigation devices, and smart TVs.

[0005] Recently, flexible display devices having a relatively wide display screen while improving portability or space utilization of the display device by using materials having flexible properties have attracted much attention. In one example, a bendable display device in which a display panel is bendable, a rollable display device in which a display panel is rollable, and a foldable display device in which a display panel is foldable have been developed.

[0006] In addition, some recent display devices support touch input using a part of the user's body (e.g., a finger) and touch input using an electronic pen (e.g., a stylus pen). Compared to touch input using only a part of the user's body, touch input using an electronic pen allows the display device to sensitively detect touch input.

[0007] The above information disclosed in this Background section is only for enhancement of background understanding and therefore the information discussed in this Background section does not necessarily constitute prior art. Summary of the Invention

[0008] Aspects of some embodiments of the present disclosure include a digitizer that can prevent or reduce the occurrence of an unrecognized area and a display device including the digitizer.

[0009] Aspects of some embodiments of the present disclosure include a digitizer capable of sensing external input and having relatively improved folding characteristics, and a display device including the digitizer.

[0010] Aspects of some embodiments of the present disclosure include a digitizer that minimizes or reduces cracks occurring in wiring of the digitizer when the display device is folded, and a display device including the digitizer.

[0011] However, aspects of the embodiments of the present disclosure are not limited to those described herein. By referring to the detailed description of the present disclosure given below, the above and other aspects of the embodiments of the present disclosure will become more apparent to those skilled in the art to which the present disclosure belongs.

[0012] According to some embodiments of the present disclosure, a digitizer includes: a folding portion including a first hole, a second hole, and a third hole, the second hole being on one side of the first hole in a first direction, and the third hole being on one side of the first hole and the second hole in a second direction different from the first direction; a first non-folding portion being on one side of the folding portion in the second direction; a second non-folding portion being on the other side of the folding portion in the second direction; a first loop group including a plurality of loops having long sides in the first direction; and a second loop group including a plurality of loops having long sides in the second direction, wherein the folding portion includes a first row and a second row, in which the first hole and the third hole overlap in the second direction, and in which the second hole and the third hole overlap in the second direction, among the plurality of loops included in the first loop group, each of the plurality of loops that at least partially overlap with the folding portion includes a line crossing the folding portion along the first row or the second row, and the lines are arranged in equal numbers in the first row and the second row.

[0013] According to some embodiments, the first loop group includes a first loop, and a long side of the first loop overlaps the first non-folded portion and the second non-folded portion.

[0014] According to some embodiments, a portion of a short side of the first loop is in the first row, and a remaining portion of the short side of the first loop is in the second row.

[0015] According to some embodiments, the first loop group includes a second loop, and a portion of a long side of the second loop overlaps the first non-folded portion, and a remaining portion of the long side of the second loop overlaps the folded portion.

[0016] According to some embodiments, a portion of a short side of the second loop is in the first row, and a remaining portion of the short side of the second loop is in the second row.

[0017] According to some embodiments, a portion of the second loop's long side overlapping the folded portion spans at least a portion of the first row, and a remaining portion of the second loop's long side overlapping the folded portion spans at least a portion of the second row.

[0018] According to some embodiments, the second loop group includes a third loop, and a long side of the third loop is in the first row.

[0019] According to some embodiments, the second loop group includes a fourth loop, and a portion of a long side of the fourth loop is in the first row, and a remaining portion of the long side of the fourth loop is in the second row.

[0020] According to some embodiments, the digitizer may further include: at least one base layer comprising reinforcing fibers; and at least one wiring layer on the base layer, wherein the plurality of loops of each of the first loop group and the second loop group respectively include a plurality of lines extending in the first direction and the second direction, and the plurality of lines are in the wiring layer.

[0021] According to some embodiments, the base layer includes a first base layer, a second base layer on one surface of the first base layer, and a third base layer on the other surface of the first base layer, the wiring layer includes a first wiring layer between the first base layer and the second base layer, a second wiring layer between the first base layer and the third base layer, and a third wiring layer on the second base layer, and the multiple lines are distributed and arranged in the first wiring layer to the third wiring layer.

[0022] According to some embodiments, a maximum number of the plurality of lines in any one of the first to third wiring layers and between the first hole and the second hole in the first direction is six.

[0023] According to some embodiments, the wiring layer further includes a fourth wiring layer on the third base layer, and a maximum number of the plurality of lines in any one of the first to fourth wiring layers and between the first hole and the second hole in the first direction is four.

[0024] According to some embodiments, the reinforcing fibers include glass fiber reinforced plastic.

[0025] According to some embodiments, each of the plurality of loops included in the first loop group and the second loop group includes two or more rings.

[0026] According to some embodiments of the present disclosure, a display device includes: a display panel; and a digitizer, on the display panel, and including a folding portion, a first loop group, and a second loop group, the folding portion including a first hole in a first row and a second hole in a second row, the second row being positioned on one side of the first row in a first direction, the first loop group including a plurality of loops having long sides in the first direction, the second loop group including a plurality of loops having long sides in a second direction different from the first direction, wherein, among the plurality of loops included in the first loop group, each of the plurality of loops that at least partially overlap with the folding portion includes a plurality of lines crossing the folding portion along the first row or the second row, and the plurality of lines are arranged in equal numbers in the first row and the second row.

[0027] According to some embodiments of the present disclosure, a digitizer includes: a folded portion, including a central portion extending in a first direction and peripheral portions on both sides of the central portion in a second direction different from the first direction; a first loop group, including a plurality of loops having long sides in the first direction; a second loop group, including a plurality of loops having long sides in the second direction; at least one base layer, including reinforcing fibers; and a plurality of wiring layers on the base layer, wherein, among the plurality of loops included in the first loop group, each of the plurality of loops at least partially overlapping with the folded portion includes a long side line extending in the first direction and a short side line extending in the second direction, and among the plurality of loops included in the second loop group, each of the plurality of loops at least partially overlapping with the folded portion includes a long side line extending in the second direction, the long side lines and the short side lines included in the first loop group and the long side lines included in the second loop group are in the plurality of wiring layers, and the long side lines included in the first loop group are in the lowest layer among the plurality of wiring layers.

[0028] According to some embodiments, the long side lines included in the first loop group are in the peripheral portion.

[0029] According to some embodiments, the long side lines included in the first loop group cross the peripheral portion in the second direction and then extend in the first direction.

[0030] According to some embodiments, the short side lines included in the first loop group and the long side lines included in the second loop group are in a layer higher than the lowermost layer.

[0031] According to some embodiments, there is no wire at a central portion of the lowermost layer.

[0032] According to some embodiments, the base layer includes a first base layer, a second base layer on one surface of the first base layer, and a third base layer on the other surface of the first base layer, the wiring layer includes a first wiring layer between the first base layer and the second base layer, a second wiring layer between the first base layer and the third base layer, and a third wiring layer on the second base layer, and the long side line included in the first loop group is in the second wiring layer.

[0033] According to some embodiments, the base layer includes a first base layer, a second base layer on one surface of the first base layer, and a third base layer on the other surface of the first base layer, the wiring layer includes a first wiring layer between the first base layer and the second base layer, a second wiring layer between the first base layer and the third base layer, a third wiring layer on the second base layer, and a fourth wiring layer on the third base layer, and the long side line included in the first loop group is in the fourth wiring layer.

[0034] According to some embodiments, the lowermost layer is a layer, among the plurality of wiring layers, adjacent to a surface facing outward when the folding portion is folded.

[0035] According to some embodiments of the present disclosure, a display device includes: a display panel; and a digitizer, on the display panel, wherein the digitizer includes: a folded portion including a central portion and peripheral portions on both sides of the central portion; a first loop group including a plurality of loops having long sides in a first direction; a second loop group including a plurality of loops having long sides in a second direction different from the first direction; at least one base layer including reinforcing fibers; and a plurality of wiring layers, on the base layer, wherein, among the plurality of loops included in the first loop group, each of the plurality of loops at least partially overlapping with the folded portion includes a long side line extending in the first direction and a short side line extending in the second direction, and among the plurality of loops included in the second loop group, each of the plurality of loops at least partially overlapping with the folded portion includes a long side line extending in the second direction, the long side lines and the short side lines included in the first loop group and the long side lines included in the second loop group are in the plurality of wiring layers, and the long side lines included in the first loop group are in the lowest layer among the plurality of wiring layers.

[0036] In a digitizer and a display device including the digitizer according to some embodiments of the present disclosure, the occurrence of an unrecognized area can be prevented or reduced.

[0037] In a digitizer and a display device including the digitizer according to some embodiments of the present disclosure, a folding characteristic of the digitizer that senses an external input may be relatively improved.

[0038] In a digitizer and a display device including the digitizer according to some embodiments of the present disclosure, cracks occurring in wirings of the digitizer when the display device is folded may be minimized or reduced.

[0039] However, the characteristics of the embodiments according to the present disclosure are not limited to the above-described characteristics, and various other characteristics are incorporated herein. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The above and other characteristics and features according to embodiments of the present disclosure will become more apparent by describing aspects of some embodiments of the present disclosure in more detail with reference to the accompanying drawings, in which:

[0041] Figure 1 is a perspective view showing a display device in an unfolded state according to some embodiments;

[0042] Figure 2 is a perspective view showing a display device in a folded state according to some embodiments;

[0043] Figure 3 is a perspective view showing a display device in an unfolded state according to some embodiments;

[0044] Figure 4 is a perspective view showing a display device in a folded state according to some embodiments;

[0045] Figure 5 is an exploded perspective view illustrating an example of a display device according to some embodiments;

[0046] Figure 6 It is along Figure 5 A cross-sectional view taken along line II';

[0047] Figure 7 is a cross-sectional view illustrating an example of a display panel according to some embodiments;

[0048] Figure 8 is a plan view illustrating a front surface of a digitizer according to some embodiments;

[0049] Figure 9 is a rear view illustrating a rear surface of a digitizer according to some embodiments;

[0050] Figure 10 It is along Figure 8 A cross-sectional view taken along line II-II';

[0051] Figure 11It is along Figure 8 A cross-sectional view taken along line III-III';

[0052] Figure 12 is a cross-sectional view illustrating a base layer of a digitizer according to some embodiments;

[0053] Figure 13 is a plan view illustrating a base layer of a digitizer according to some embodiments;

[0054] Figure 14 is a plan view illustrating a horizontal loop according to some embodiments;

[0055] Figure 15 and Figure 16 is a plan view illustrating a vertical loop according to some embodiments;

[0056] Figures 17 to 20 It shows Figure 8 An enlarged plan view of lines of loops respectively arranged (positioned) in the first to fourth wiring layers in the region A;

[0057] Figure 21A It is shown along Figures 17 to 20 A cross-sectional view of the peripheral portion of the folded portion taken along line IV-IV';

[0058] Figure 21B It is shown along Figures 17 to 20 A cross-sectional view of the central portion of the folded portion taken along line V-V';

[0059] Figures 22 to 24 It shows Figure 8 An enlarged plan view of lines of loops respectively arranged in the first to fourth wiring layers of the display device according to some embodiments in a region A;

[0060] Figure 25A It is shown along Figures 22 to 24 A cross-sectional view of the outer periphery of the folded portion taken along line VI-VI'; and

[0061] Figure 25B It is shown along Figures 22 to 24 A cross-sectional view of the central portion of the folded portion taken along line VII-VII'. DETAILED DESCRIPTION

[0062] Various aspects of some embodiments of the present disclosure will now be described more fully hereinafter with reference to the accompanying drawings, which illustrate various aspects of some embodiments of the present disclosure. However, the present invention may be embodied in different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the scope of the invention to those skilled in the art.

[0063] It will also be understood that when a layer or substrate is referred to as being “on” another layer or substrate, it can be directly on the other layer or substrate, or intervening layers or substrates may also be present. Throughout the specification, like reference numerals refer to like components.

[0064] Hereinafter, aspects of some embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings.

[0065] Figure 1 is a perspective view illustrating a display device in an unfolded state according to some embodiments. Figure 2 is a perspective view illustrating a display device in a folded state according to some embodiments.

[0066] Reference Figure 1 and Figure 2 , the display device 10 according to some embodiments may be a foldable display device. It is mainly assumed that the display device 10 is applied to a smart phone, but the embodiments according to the present disclosure are not limited thereto. For example, the display device 10 according to the embodiments of the present disclosure may be applied to a mobile phone, a tablet personal computer (PC), a personal digital assistant (PDA), a portable multimedia player (PMP), a television, a game console, a wristwatch-type electronic device, a head-mounted display, a monitor of a personal computer, a laptop computer, a car navigation system, a dashboard of a car, a digital camera, a video camera, an external billboard, an electronic billboard, a medical device, an inspection device, various household appliances (such as a refrigerator and a washing machine), or an Internet of Things device.

[0067] The display device 10 according to some embodiments can be classified into various types according to the display method. Examples of display devices may include organic light-emitting display (OLED) devices, inorganic light-emitting display (inorganic LED) devices, quantum dot light-emitting display (QLED) devices, micro LED display devices, nano LED display devices, field emission display (FED) devices, and electrophoretic display (EPD) devices, etc. In the following, an organic light-emitting display device will be described as an example of a display device, and the organic light-emitting display device applied to the embodiment will be referred to as a display device for short unless special distinction is required. However, the embodiment is not limited to the organic light-emitting display device, and other display devices mentioned above or known in the art can be applied within the scope of the same technical spirit.

[0068] In the drawings, the first direction DR1 may be a direction parallel to one side of the display device 10 in a plan view (e.g., in a view perpendicular or orthogonal to the display surface of the display device 10), and may be, for example, a horizontal direction of the display device 10. The second direction DR2 may be a direction parallel to the other side in contact with the one side of the display device 10 in a plan view, and may be, for example, a vertical direction of the display device 10. The third direction DR3 may be a thickness direction of the display device 10.

[0069] The display device 10 may have a rectangular shape or a square shape in a plan view. In some embodiments, the display device 10 may have a rectangular shape with right-angled corners or rounded corners in a plan view. The display device 10 may include two short sides arranged in the first direction DR1 and two long sides arranged in the second direction DR2 in a plan view.

[0070] The display device 10 includes 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, when the display device 10 has a rectangular shape in a plan view, the display area DA may also have a rectangular shape.

[0071] The display area DA may be an area including a plurality of pixels for displaying an image. The plurality of pixels may be arranged in a matrix. The plurality of pixels may have a rectangular shape, a diamond shape, or a square shape in a plan view, but is not limited thereto. For example, the plurality of pixels may have a quadrilateral shape other than a rectangular shape, a diamond shape, or a square shape, a polygonal shape other than a quadrilateral shape, a circular shape, or an elliptical shape.

[0072] 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 arranged around the display area DA (e.g., in the periphery of the display area DA or outside the occupied area of ​​the display area DA). The non-display area NDA may be arranged as follows Figure 1 and Figure 2 The display area DA is shown as surrounding the display area DA, but the embodiments of the present disclosure are not limited thereto. The display area DA may be partially surrounded by the non-display area NDA (e.g., such that the non-display area NDA is in the periphery of the display area DA or outside the occupied area of ​​the display area DA).

[0073] The display device 10 can maintain two states: a folded state and an unfolded state. Figure 2As shown in FIG, the display device 10 can be folded in an inner-folding manner in which the display area DA is positioned inside the display device 10. If the display device 10 is folded in the inner-folding manner, portions of the front surface of the display device 10 may face each other. Alternatively, the display device 10 can be folded in an outer-folding manner in which the display area DA is positioned outside. When the display device 10 is folded in the outer-folding manner, portions of the rear surface of the display device 10 may face each other.

[0074] 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 or bent, 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 or bent.

[0075] The first non-folding area NFA1 may be positioned on one side (e.g., the upper side) of the folding area FDA. The second non-folding area NFA2 may be positioned on the other side (e.g., the lower side) of the folding area FDA. The folding area FDA defined by the first folding line FL1 and the second folding line FL2 may be a curved area having a curvature (e.g., a set curvature or a predetermined curvature). 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.

[0076] like Figure 1 and Figure 2 As shown in FIG, the first folding line FL1 and the second folding line FL2 may extend in the first direction DR1, and in this case, the display device 10 may be folded in the second direction DR2. Therefore, the length of the display device 10 in the second direction DR2 may be reduced to half (or approximately half), so that the user can conveniently carry the display device 10.

[0077] When the first folding line FL1 and the second folding line FL2 are Figure 1 and Figure 2 As shown in the figure, when extending in the first direction DR1, the length of the fold area FDA in the second direction DR2 can be shorter than the length of the fold area FDA in the first direction DR1. In addition, the length of the first non-folding area NFA1 in the second direction DR2 can be longer than the length of the first non-folding area NFA1 in the first direction DR1. The length of the second non-folding area NFA2 in the second direction DR2 can be longer than the length of the second non-folding area NFA2 in the first direction DR1.

[0078] Each of 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. Figure 1 and Figure 2 It is shown that each of the display area DA and the non-display area NDA overlaps the folding area FDA, the first non-folding area NFA1, and the second non-folding area NFA2.

[0079] Figure 3 is a perspective view illustrating a display device in an unfolded state according to some embodiments. Figure 4 is a perspective view illustrating a display device in a folded state according to some embodiments.

[0080] according to Figure 3 and Figure 4 The display device 10 of the embodiment shown in FIG. Figure 1 and Figure 2 The display device 10 of the embodiment is different in that the length of the display device 10 in the first direction DR1 is relatively reduced to half (or approximately half) because the first folding line FL1 and the second folding line FL2 extend in the second direction DR2 and the display device 10 is folded in the first direction DR1. Figure 3 and Figure 4 In the , you can omit Figure 1 and Figure 2 Some redundant descriptions of parts described in the embodiments.

[0081] Reference Figure 3 and Figure 4 In a state where the display device 10 is unfolded, the long sides of the display device 10 may extend along the second direction DR2 , and the short sides of the display device 10 may extend along the first direction DR1 .

[0082] The first folding line FL1 and the second folding line FL2 may be as follows Figure 3 and Figure 4 The display device 10 extends in the second direction DR2 as shown in FIG, and in this case, the display device 10 may be folded in the first direction DR1.

[0083] The first non-folding area NFA1 may be positioned on one side (eg, right side) of the folding area FDA, and the second non-folding area NFA2 may be positioned on the other side (eg, left side) of the folding area FDA.

[0084] When the first folding line FL1 and the second folding line FL2 are Figure 3 and Figure 4As shown in FIG, when extending in the second direction DR2, the length of the fold area FDA in the first direction DR1 may be shorter than the length of the fold area FDA in the second direction DR2. In addition, the length of the first non-folding area NFA1 in the second direction DR2 may be longer than the length of the first non-folding area NFA1 in the first direction DR1. The length of the second non-folding area NFA2 in the second direction DR2 may be longer than the length of the second non-folding area NFA2 in the first direction DR1.

[0085] In the following, in order to simplify the description, Figure 1 and Figure 2 Examples and Figure 3 and Figure 4 Any one of the embodiments of the present disclosure is taken as an example, but the embodiments of the present disclosure are not limited thereto. The following description can also be applied to Figure 1 and Figure 2 Examples and Figure 3 and Figure 4 of embodiments of both.

[0086] Figure 5 is an exploded perspective view illustrating an example of a display device according to some embodiments. Figure 6 It is along Figure 5 A cross-sectional view taken along line II'.

[0087] Reference Figure 5 and Figure 6 The display device 10 according to some embodiments may include a display panel 100 , a polarizing film 200 , a window 300 , a protective film 400 , a panel lower member 500 , a digitizer 600 , a shielding member 700 , and a heat dissipation member 800 .

[0088] Will refer to it later Figure 7 The display panel 100 is described in detail.

[0089] The polarizing film 200 may be positioned on the front surface of the display panel 100. The front surface of the display panel 100 may be a display surface on which an image is displayed. The polarizing film 200 may be adhered to the front surface of the display panel 100 by a first adhesive member AD1. The first adhesive member AD1 may be an optically clear adhesive (OCA) film or an optically clear resin (OCR) film. The polarizing film 200 may include a linear polarizing plate and a phase retardation film (such as a quarter-wavelength (λ / 4) plate).

[0090] The window 300 can be positioned on the front surface of the polarizing film 200. The window 300 can be adhered to the front surface of the polarizing film 200 via a second adhesive member AD2. The second adhesive member AD2 can be an optically transparent adhesive film or an optically transparent resin film. The window 300 can be made of a transparent material and can include, for example, glass or plastic. For example, the window 300 can be (but not necessarily) ultra-thin glass (UTG) or a transparent polyimide film having a thickness of 0.1 millimeter (mm) or less.

[0091] A protective film 400 may be positioned on the front surface of the window 300. The protective film 400 may be adhered to the front surface of the window 300 via a third adhesive member AD3. The third adhesive member AD3 may be an optically clear adhesive film or an optically clear resin film. The protective film 400 may provide at least one of the following functions for preventing or reducing scattering, absorbing impact, preventing or reducing scratches, preventing or reducing fingerprint stains, and preventing or reducing glare on the window 300.

[0092] The light blocking layer 410 may be positioned on the rear surface of the protective film 400. The light blocking layer 410 may be positioned on the edge of the protective film 400. The light blocking layer 410 may include a light blocking material capable of blocking light. For example, the light blocking layer 410 may include an organic black pigment or an inorganic black pigment such as carbon black.

[0093] The panel lower member 500 may be positioned on the rear surface of the display panel 100. The panel lower member 500 may be adhered to the rear surface of the display panel 100 by a fourth adhesive member AD4. The fourth adhesive member AD4 may be a pressure sensitive adhesive (PSA) member.

[0094] The lower panel member 500 may be a buffer layer for absorbing external impact. The lower panel member 500 absorbs external impact to prevent or reduce damage to the display panel 100. The lower panel member 500 may be formed of a single layer or multiple layers. For example, the buffer layer may include an elastic material (such as a sponge in which rubber, urethane, or acrylic material is foamed).

[0095] Despite Figure 5 and Figure 6 , the panel lower member 500 is also positioned in the folding area FDA, but the embodiments of the present disclosure are not limited thereto. For example, the panel lower member 500 may be removed from the folding area FDA so that the display device 10 is smoothly folded.

[0096] The digitizer 600 may be positioned on the rear surface of the panel lower member 500 and may include a first non-folding portion 610 , a second non-folding portion 620 , and a folding portion 630 .

[0097] The first unfolded portion 610 may overlap at least a portion of the first unfolded area NFA1. The second unfolded portion 620 may overlap at least a portion of the second unfolded area NFA2. The folded portion 630 may overlap the folded area FDA. Thus, the folded portion 630 may be positioned between the first unfolded portion 610 and the second unfolded portion 620.

[0098] The width of the folded portion 630 of the digitizer 600 according to some embodiments in the first direction DR1 may be 5 millimeters (mm) or more and 20 mm or less. However, the width of the folded portion 630 of the digitizer 600 is not limited to the above numerical range.

[0099] In addition, the thickness of the digitizer 600 in the third direction DR3 according to some embodiments may be 30 micrometers (μm) or more and 300 μm or less. However, the thickness of the digitizer 600 is not limited to the above numerical range.

[0100] In the case where the width of the folding portion 630 of the digitizer 600 and the thickness of the digitizer 600 have the above-mentioned numerical ranges, the digitizer 600 can be positioned on the rear surface of the display panel 100 to fully support the display panel 100, and during the folding operation of the display device 10, the shape can be easily changed by ensuring the flexibility of the folding portion 630 of the digitizer 600 arranged to correspond to the folding area FDA of the display device 10.

[0101] The digitizer 600 may include a plurality of holes HL positioned in the folding region FDA to facilitate bending in the folding region FDA. Specifically, the folding portion 630 of the digitizer 600 may include holes HL defined to penetrate in the third direction DR3. The holes HL may correspond to the folding region FDA and may be arranged spaced apart from each other along the first direction DR1 and the second direction DR2.

[0102] The digitizer 600 may have a structure in which a plurality of prepregs are stacked. For example, the digitizer 600 may have a structure in which the folding lines FL1 and FL2 (see FIG. Figure 1 ) and the second prepregs perpendicular to the folding lines FL1 and FL2 are alternately stacked. The first prepreg and the second prepreg can be stacked by a hot press or an autoclave. Figure 12 and Figure 13 A detailed description thereof is given. Prepreg refers to a reinforcing material (or reinforcing fabric) that has been pre-impregnated with resin.

[0103] In the digitizer 600 according to some embodiments, the base layer where the sensing coils are positioned may include a reinforced fiber composite material. The digitizer 600 may include reinforcing fibers arranged in the base portion. The reinforcing fibers may be carbon fibers or glass fibers.

[0104] For example, the reinforcing fibers may include epoxy, polyester, polyamide, polycarbonate, polypropylene, polybutylene, or vinyl ester.

[0105] The matrix portion may include a polymer resin. The matrix portion may include a thermoplastic resin. The sensing coil may include sensing coils positioned on the front and rear surfaces of the base layer and insulated from each other. The components of the digitizer 600 will be described in detail later.

[0106] The digitizer 600 may include an electrode pattern for detecting proximity or contact of an electronic pen (such as a stylus) that supports electromagnetic resonance (EMR). That is, the digitizer 600 may detect a magnetic field or electromagnetic signal emitted from the electronic pen based on the electrode pattern and determine the point where the detected magnetic field or electromagnetic signal is strongest as the touch coordinate.

[0107] The digitizer 600 can be attached to the rear surface of the panel lower member 500 via a fifth adhesive member AD5. The fifth adhesive member AD5 may not be positioned in the folding area FDA to relatively reduce the folding stress of the display device 10. One of the plurality of fifth adhesive members AD5 may be positioned in the first non-folding area NFA1, and another of the plurality of fifth adhesive members AD5 may be positioned in the second non-folding area NFA2. According to some embodiments, the fifth adhesive member AD5 may be a pressure-sensitive adhesive member. However, embodiments of the present disclosure are not limited thereto.

[0108] The cushioning member 650 may be positioned on the rear surface of the digitizer 600. The cushioning member 650 may be attached to the rear surface of the digitizer 600 via the sixth adhesive member AD6. The sixth adhesive member AD6 may not be positioned in the folding area FDA to relatively reduce the folding stress of the display device 10. That is, one of the plurality of sixth adhesive members AD6 may be positioned in the first unfolding area NFA1, and another of the plurality of sixth adhesive members AD6 may be positioned in the second unfolding area NFA2. The sixth adhesive member AD6 may be a pressure-sensitive adhesive member.

[0109] The buffer member 650 absorbs external shock to prevent or reduce damage to the digitizer 600. The buffer member 650 may include an elastic material such as a sponge in which rubber, urethane-based material, or acrylic-based material is foamed.

[0110] The shielding member 700 may include a first shielding member 710 and a second shielding member 720. The first shielding member 710 and the second shielding member 720 may be positioned on the rear surface of the buffer member 650. The first shielding member 710 and the second shielding member 720 may be attached to the rear surface of the buffer member 650 via a seventh adhesive member AD7. The seventh adhesive member AD7 may be a pressure-sensitive adhesive member.

[0111] According to some embodiments, at least a portion of the first and second shielding members 710, 720, and the seventh adhesive member AD7 may not be positioned in the folding area FDA to relatively reduce the folding stress of the display device 10. The first shielding member 710 may be positioned in the first non-folding area NFA1, and the second shielding member 720 may be positioned in the second non-folding area NFA2. The gap between the first and second shielding members 710, 720 may overlap with the folding area FDA and may be smaller than the width of the folding area FDA. However, embodiments of the present disclosure are not limited thereto.

[0112] The first and second shielding members 710 and 720 include magnetic metal powder, thereby allowing electromagnetic signals or magnetic fields that have passed through the digitizer 600 to flow through the first and second shielding members 710 and 720. Therefore, the first and second shielding members 710 and 720 can relatively reduce the transmission of magnetic fields or electromagnetic signals toward the rear surfaces of the first and second shielding members 710 and 720.

[0113] The heat dissipation member 800 includes a first heat dissipation member 810 and a second heat dissipation member 820. The first heat dissipation member 810 and the second heat dissipation member 820 may be positioned on the rear surface of the shielding member 700.

[0114] According to some embodiments, at least a portion of the first heat dissipation member 810 and the second heat dissipation member 820 may not be positioned in the folding area FDA to relatively reduce the folding stress of the display device 10. That is, the first heat dissipation member 810 may be positioned in the first non-folding area NFA1, and the second heat dissipation member 820 may be positioned in the second non-folding area NFA2. The gap between the first heat dissipation member 810 and the second heat dissipation member 820 may overlap with the folding area FDA and may be smaller than the width of the folding area FDA.

[0115] The first and second heat dissipation members 810 and 820 may be films of metals having excellent thermal conductivity, such as copper, nickel, ferrite, or silver. Therefore, heat generated in the display device 10 can be dissipated to the outside by the first and second heat dissipation members 810 and 820.

[0116] Figure 7is a cross-sectional view illustrating an example of a display panel according to some embodiments.

[0117] Reference Figure 7 The display panel 100 may include a substrate SUB, a display layer DISL, and a touch sensing layer TDL. The display layer DISL may include a thin film transistor layer TFTL, a light emitting element layer EML, and an encapsulation layer TFEL.

[0118] The substrate SUB may be formed of an insulating material such as a polymer resin. For example, the substrate SUB may be formed of polyimide. The substrate SUB may be a flexible substrate that can be bent, folded, or rolled.

[0119] The thin film transistor layer TFTL may be positioned on the substrate SUB. The thin film transistor layer TFTL may include a barrier film BR, a thin film transistor TFT1, a first capacitor electrode CAE1, a second capacitor electrode CAE2, a first anode connection electrode ANDE1, a second anode connection electrode ANDE2, a gate insulating film 130, a first interlayer insulating film 141, a second interlayer insulating film 142, a first planarizing film 160, and a second planarizing film 180.

[0120] The barrier film BR may be positioned on the substrate SUB. The barrier film BR is a film for protecting the thin film transistors of the thin film transistor layer TFTL and the light-emitting layer 172 of the light-emitting element layer EML from moisture that penetrates through the substrate SUB (which is susceptible to moisture permeation). The barrier film BR may be formed as a plurality of inorganic films alternately stacked. For example, the barrier film BR may be formed of a plurality of films in which one or more inorganic films selected from silicon nitride films, silicon oxynitride films, silicon oxide films, titanium oxide films, and aluminum oxide films are alternately stacked.

[0121] The thin film transistor TFT1 may be positioned on the barrier film BR. The active layer ACT1 of the thin film transistor TFT1 may be positioned on the barrier film BR. The active layer ACT1 of the thin film transistor TFT1 may include polycrystalline silicon, single crystal silicon, low temperature polycrystalline silicon, amorphous silicon, or an oxide semiconductor.

[0122] The active layer ACT1 may include a channel region CHA1, a source region S1, and a drain region D1. The channel region CHA1 may be a region that overlaps with the gate electrode G1 in a third direction DR3, which is the thickness direction of the substrate SUB. The source region S1 may be located on one side of the channel region CHA1, and the drain region D1 may be located on the other side of the channel region CHA1. The source region S1 and the drain region D1 may be regions that do not overlap with the gate electrode G1 in the third direction DR3. The source region S1 and the drain region D1 may be regions that have conductivity by doping a silicon semiconductor or an oxide semiconductor with ions or impurities.

[0123] The gate insulating film 130 may be positioned on the active layer ACT1 of the thin film transistor TFT1. The gate insulating film 130 may be formed of an inorganic film such as a silicon nitride film, a silicon oxynitride film, a silicon oxide film, a titanium oxide film, or an aluminum oxide film.

[0124] The gate electrode G1 of the thin film transistor TFT1 and the first capacitor electrode CAE1 may be positioned on the gate insulating film 130. The gate electrode G1 may overlap the active layer ACT1 in the third direction DR3. Figure 7 The gate electrode G1 and the first capacitor electrode CAE1 are shown as being spaced apart from each other, but the gate electrode G1 and the first capacitor electrode CAE1 may be connected to each other and formed integrally. The gate electrode G1 and the first capacitor electrode CAE1 may be formed as a single layer or multiple layers made of any one of molybdenum (Mo), aluminum (Al), chromium (Cr), gold (Au), titanium (Ti), nickel (Ni), neodymium (Nd), and copper (Cu), or alloys thereof.

[0125] The first interlayer insulating film 141 may be positioned on the gate electrode G1 of the thin film transistor TFT1 and the first capacitor electrode CAE1. The first interlayer insulating film 141 may be formed of an inorganic film (e.g., a silicon nitride film, a silicon oxynitride film, a silicon oxide film, a titanium oxide film, or an aluminum oxide film). The first interlayer insulating film 141 may be formed of a plurality of inorganic films.

[0126] The second capacitor electrode CAE2 can be positioned on the first interlayer insulating film 141. The second capacitor electrode CAE2 can overlap the first capacitor electrode CAE1 in the third direction DR3. Furthermore, when the gate electrode G1 and the first capacitor electrode CAE1 are integrally formed, the second capacitor electrode CAE2 can overlap the gate electrode G1 in the third direction DR3. Because the first interlayer insulating film 141 has a dielectric constant (e.g., a set dielectric constant or a predetermined dielectric constant), a capacitor can be formed by the first capacitor electrode CAE1, the second capacitor electrode CAE2, and the first interlayer insulating film 141 positioned between the first and second capacitor electrodes CAE1 and CAE2. The second capacitor electrode CAE2 can be formed as a single layer or multiple layers made of any one of molybdenum (Mo), aluminum (Al), chromium (Cr), gold (Au), titanium (Ti), nickel (Ni), neodymium (Nd), and copper (Cu), or alloys thereof.

[0127] The second interlayer insulating film 142 may be positioned on the second capacitor electrode CAE2. The second interlayer insulating film 142 may be formed of an inorganic film (e.g., a silicon nitride film, a silicon oxynitride film, a silicon oxide film, a titanium oxide film, or an aluminum oxide film). The second interlayer insulating film 142 may be formed of a plurality of inorganic films.

[0128] The first anode connection electrode ANDE1 may be positioned on the second interlayer insulating film 142. The first anode connection electrode ANDE1 may be connected to the drain region D1 of the thin film transistor TFT1 through a first connection contact hole ANT1 penetrating the gate insulating film 130, the first interlayer insulating film 141, and the second interlayer insulating film 142. The first anode connection electrode ANDE1 may be formed as a single layer or a plurality of layers made of any one of molybdenum (Mo), aluminum (Al), chromium (Cr), gold (Au), titanium (Ti), nickel (Ni), neodymium (Nd), and copper (Cu), or alloys thereof.

[0129] A first planarization film 160 for flattening a stepped portion formed by the thin film transistor TFT1 may be positioned on the first anode connection electrode ANDE1. The first planarization film 160 may be formed of an organic film such as an acrylic resin film, an epoxy resin film, a phenolic resin film, a polyamide resin film, and a polyimide resin film.

[0130] The second anode connection electrode ANDE2 may be positioned on the first planarization film 160. The second anode connection electrode ANDE2 may be connected to the first anode connection electrode ANDE1 through a second connection contact hole ANT2 penetrating the first planarization film 160. The second anode connection electrode ANDE2 may be formed as a single layer or a plurality of layers made of any one of molybdenum (Mo), aluminum (Al), chromium (Cr), gold (Au), titanium (Ti), nickel (Ni), neodymium (Nd), and copper (Cu), or an alloy thereof.

[0131] The second planarization film 180 may be positioned on the second anode connection electrode ANDE2 and may be formed of an organic film such as an acrylic resin film, an epoxy resin film, a phenolic resin film, a polyamide resin film, and a polyimide resin film.

[0132] A light emitting element layer EML including a light emitting element LEL, a bank 190, and a capping layer CAP may be positioned on the second planarization film 180. Each of the plurality of light emitting elements LEL includes a pixel electrode 171, a light emitting layer 172, and a common electrode 173.

[0133] The pixel electrode 171 may be positioned on the second planarization film 180. The pixel electrode 171 may be connected to the second anode connection electrode ANDE2 through a third connection contact hole ANT3 penetrating the second planarization film 180.

[0134] In a top emission structure that emits light toward the common electrode 173 relative to the light-emitting layer 172, the pixel electrode 171 may be made of a metal material having high reflectivity, such as a stack structure of aluminum (Al) and titanium (Ti) (Ti / Al / Ti), a stack structure of aluminum (Al) and indium tin oxide (ITO) (ITO / Al / ITO), a stack structure of silver (Ag) and ITO (ITO / Ag / ITO), an APC alloy, and a stack structure of an APC alloy and ITO (ITO / APC / ITO). The APC alloy is an alloy of silver (Ag), palladium (Pd), and copper (Cu).

[0135] The bank 190 may be formed to separate the pixel electrode 171 on the second planarization film 180 so as to define the first emission portion EA1 and the second emission portion EA2. The bank 190 may be arranged to cover the edge of the pixel electrode 171. The bank 190 may be formed of an organic film such as an acrylic resin film, an epoxy resin film, a phenolic resin film, a polyamide resin film, and a polyimide resin film.

[0136] Each of the first and second emission portions EA1 and EA2 represents a region where the pixel electrode 171, the light emitting layer 172, and the common electrode 173 are sequentially stacked, and holes from the pixel electrode 171 and electrons from the common electrode 173 are recombined in the light emitting layer 172 to emit light.

[0137] The light emitting layer 172 may be positioned on the pixel electrode 171 and the bank 190. The light emitting layer 172 may include an organic material for emitting light of a color (eg, a set color or a predetermined color). For example, the light emitting layer 172 includes a hole transport layer, an organic material layer, and an electron transport layer.

[0138] The common electrode 173 may be positioned on the light emitting layer 172. The common electrode 173 may be disposed to cover the light emitting layer 172. The common electrode 173 may be a common layer commonly formed in the first emission portion EA1 and the second emission portion EA2.

[0139] In a top emission structure, the common electrode 173 may be formed of a transparent conductive material (TCO) capable of transmitting light, such as ITO or indium zinc oxide (IZO), or a semi-transmissive conductive material, such as magnesium (Mg), silver (Ag), or an alloy of magnesium (Mg) and silver (Ag). When the common electrode 173 is formed of a semi-transmissive conductive material, light emission efficiency may be improved due to a microcavity effect.

[0140] The spacer 191 may be positioned on the bank 190. The spacer 191 may be used to support a mask during a manufacturing process of the light emitting layer 172. The spacer 191 may be formed of an organic film such as an acrylic resin film, an epoxy resin film, a phenolic resin film, a polyamide resin film, and a polyimide resin film.

[0141] The capping layer CAP may be positioned on the common electrode 173. The capping layer CAP may prevent or reduce the situation in which pollutants or impurities, such as moisture or air, penetrate from the outside to damage or contaminate the light emitting layer 172.

[0142] The encapsulation layer (TFEL) can be positioned on the capping layer (CAP). The encapsulation layer (TFEL) includes at least one inorganic film to prevent or reduce the penetration of contaminants such as oxygen or moisture into the light-emitting element layer (EML). Furthermore, the encapsulation layer (TFEL) includes at least one organic film to protect the light-emitting element layer (EML) from foreign matter such as dust. For example, the encapsulation layer (TFEL) includes a first encapsulation inorganic film (TFE1), an encapsulation organic film (TFE2), and a second encapsulation inorganic film (TFE3).

[0143] The first encapsulating inorganic film TFE1 may be positioned on the capping layer CAP, the encapsulating organic film TFE2 may be positioned on the first encapsulating inorganic film TFE1, and the second encapsulating inorganic film TFE3 may be positioned on the encapsulating organic film TFE2. The first encapsulating inorganic film TFE1 and the second encapsulating inorganic film TFE3 may be formed of a plurality of films in which one or more inorganic films selected from silicon nitride films, silicon oxynitride films, silicon oxide films, titanium oxide films, and aluminum oxide films are alternately stacked. The encapsulating organic film TFE2 may be an organic film such as an acrylic resin film, an epoxy resin film, a phenolic resin film, a polyamide resin film, or a polyimide resin film.

[0144] The touch sensing layer TDL may be positioned on the encapsulation layer TFEL. The touch sensing layer TDL includes a first touch insulating film TINS1, a connecting electrode BE, a second touch insulating film TINS2, a driving electrode TE, a sensing electrode RE, and a third touch insulating film TINS3.

[0145] The first touch insulating film TINS1 may be positioned on the encapsulation layer TFEL. The first touch insulating film TINS1 may be formed of an inorganic film (eg, a silicon nitride film, a silicon oxynitride film, a silicon oxide film, a titanium oxide film, or an aluminum oxide film).

[0146] The connection electrode BE may be positioned on the first touch insulating film TINS1. The connection electrode BE may be formed as a single layer or multiple layers made of any one of molybdenum (Mo), aluminum (Al), chromium (Cr), gold (Au), titanium (Ti), nickel (Ni), neodymium (Nd), and copper (Cu), or an alloy thereof.

[0147] The second touch insulating film TINS2 may be positioned on the connection electrode BE. The second touch insulating film TINS2 may be formed of an inorganic film (e.g., a silicon nitride film, a silicon oxynitride film, a silicon oxide film, a titanium oxide film, or an aluminum oxide film). Alternatively, the second touch insulating film TINS2 may be formed of an organic film such as an acrylic resin film, an epoxy resin film, a phenolic resin film, a polyamide resin film, or a polyimide resin film.

[0148] The driving electrode TE and the sensing electrode RE may be positioned on the second touch insulating film TINS2. The driving electrode TE and the sensing electrode RE may be formed as a single layer or multiple layers made of any one of molybdenum (Mo), aluminum (Al), chromium (Cr), gold (Au), titanium (Ti), nickel (Ni), neodymium (Nd), and copper (Cu), or alloys thereof.

[0149] The driving electrode TE and the sensing electrode RE may overlap with the connection electrode BE in the third direction DR3 . The driving electrode TE may be connected to the connection electrode BE through a touch contact hole TCNT1 penetrating the second touch insulating film TINS2 .

[0150] The third touch insulating film TINS3 may be formed on the drive electrode TE and the sensing electrode RE. The third touch insulating film TINS3 may be used to flatten a stepped portion formed by the drive electrode TE, the sensing electrode RE, and the connection electrode BE. The third touch insulating film TINS3 may be formed of an organic film such as an acrylic resin film, an epoxy resin film, a phenolic resin film, a polyamide resin film, or a polyimide resin film.

[0151] Figure 8 is a plan view illustrating a front surface of a digitizer according to some embodiments. Figure 9 is a rear view illustrating a rear surface of a digitizer according to some embodiments.

[0152] Reference Figure 8 and Figure 9 , Figure 8 shows a sensing coil positioned at the front surface 600_U of the digitizer 600 according to some embodiments, and Figure 9 The sensing coils positioned at the back surface 600_B of the digitizer 600 are shown.

[0153] The digitizer 600 may include an active area AA and a peripheral area NAA.The digitizer 600 may include a plurality of sensing coils RF and CF and a connector CT.

[0154] The active area AA of the digitizer 600 may be aligned with the display device 10 (see Figure 1 ) of the display area DA (see Figure 1), and the peripheral area NAA of the digitizer 600 may overlap with the non-display area NDA of the display device 10 (see Figure 1 However, the embodiment according to the present disclosure is not limited thereto, and the active area AA may overlap with the non-display area NDA (see Figure 1 ) and the peripheral area NAA may overlap with the display area DA (see Figure 1 )overlapping.

[0155] The active area AA may be defined as an area for sensing the input of the pen, and the peripheral area NAA may be an area where the connection lines for looping each of the sensing coils RF and CF are located. In the peripheral area NAA, the connection lines for looping each of the sensing coils RF and CF may be densely arranged.

[0156] Each of the plurality of first sensing coils RF may include first and second long sides RFL1_1 and RFL1_2 extending in the second direction DR2 and short sides RSL extending in the first direction DR1 , connecting one end of the first long side RFL1_1 to one end of the second long side RFL1_2 and spaced apart from each other in the second direction DR2 .

[0157] The loop formed by the first sensing coil RF may have a shape extending in the second direction DR2 (eg, in the horizontal direction). The loop formed by the first sensing coil RF may be referred to as a horizontal loop (eg, Figure 14 horizontal loops X1, X2, and X3 in the .

[0158] In the accompanying drawings, a case is shown in which the loop formed by the first sensing coil RF includes a plurality of loops having different lengths in the second direction DR2 and arranged in the first direction DR1, but embodiments of the present disclosure are not limited thereto. For example, the lengths of the short sides RSL in the first direction DR1 may be different according to some embodiments. The widths of the first long sides RFL1_1 and the second long sides RFL1_2 included in each first sensing coil RF in the first direction DR1 may be different. However, embodiments of the present disclosure are not limited thereto, and the lengths of the short sides RSL in the first direction DR1 may be the same.

[0159] The arrangement of the loops formed by the first sensing coils RF shown in the drawings is merely an example and is not limited thereto. The first sensing coils RF forming one loop and the first sensing coils RF forming another loop may be spaced apart from each other, but embodiments of the present disclosure are not limited thereto, and the respective loops may at least partially overlap with each other in the third direction DR3.

[0160] In the first long side RFL1_1 and the second long side RFL1_2 included in each first sensing coil RF, a portion crossing the folding portion 630 of the digitizer 600 may extend from the first non-folding portion 610 to the second non-folding portion 620, bypassing the hole HL. Figure 10 Give its detailed description.

[0161] One end of the first sensing coil RF extending to the peripheral area NAA may be connected to the connector CT.

[0162] According to some embodiments, the first long side RFL1_1, the second long side RFL1_2, and the short side RSL included in each first sensing coil RF may be positioned in different layers. For example, the first long side RFL1_1, the second long side RFL1_2, and the short side RSL may include bridge lines BP1 and BP2 (see FIG. Figure 10 ) and as Figure 10 and Figure 11 As shown in FIG, the assemblies are distributed and arranged in multiple layers.

[0163] Each of the plurality of second sensing coils CF may include third and fourth long sides CFL1_1 and CFL1_2 extending in the first direction DR1 and routing lines CRL extending in the second direction DR2 , connecting one end of the third and fourth long sides CFL1_1 and CFL1_2 and spaced apart from each other in the first direction DR1 .

[0164] The loop formed by the second sensing coil CF may have a shape extending in the first direction DR1 (eg, in the vertical direction). The loop formed by the second sensing coil CF may be referred to as a vertical loop (eg, Figure 15 and Figure 16 The vertical loops Y0, Y1, Y2, Y3 and Y4 in FIG.

[0165] In the accompanying drawings, a case is shown as an example in which the loop formed by the second sensing coil CF includes a plurality of loops having different lengths in the first direction DR1 and arranged in the second direction DR2, but the embodiments according to the present disclosure are not limited thereto. For example, the length of the routing line CRL constituting the short side of the loop formed by the second sensing coil CF in the second direction DR2 may be different for each loop. The short side of the loop formed by the second sensing coil CF refers to the portion excluding the portion where the routing line CRL extends from the loop to connect to the connector CT. The short side of the loop formed by the second sensing coil CF refers to the portion of the routing line CRL positioned between the third long side CFL1_1 and the fourth long side CFL1_2. However, the embodiments according to the present disclosure are not limited thereto, and the length of the routing line CRL constituting the short side of the loop formed by the second sensing coil CF in the second direction DR2 may be the same.

[0166] The arrangement of the loops formed by the second sensing coils CF shown in the drawings is merely an example and is not limited thereto. The second sensing coils CF forming one loop and the second sensing coils CF forming another loop may be spaced apart from each other, but embodiments of the present disclosure are not limited thereto, and the respective loops may at least partially overlap with each other in the third direction DR3.

[0167] According to some embodiments, in the third and fourth long sides CFL1_1 and CFL1_2 included in each second sensing coil CF, a line positioned at the folded portion 630 of the digitizer 600 may be positioned between groups of holes HL arranged in the first direction DR1 and spaced apart from each other along the second direction DR2.

[0168] Among the routing lines CRL, the line positioned at the folded portion 630 may be connected to one end of the corresponding third long side CFL1_1 and one end of the corresponding fourth long side CFL1_2 by bypassing the hole HL.

[0169] Similar to the first sensing coil RF, one end of the second sensing coil CF extending to the peripheral area NAA may be connected to the connector CT.

[0170] According to some embodiments, the third long side CFL1_1 and the fourth long side CFL1_2 included in each second sensing coil CF and the routing line CRL may be positioned on different layers. For example, the third long side CFL1_1 and the fourth long side CFL1_2 and the routing line CRL may include bridge lines BP1 and BP2 (see FIG. Figure 10 ) and as Figure 10 and Figure 11 As shown in FIG, the assemblies are distributed and positioned in multiple layers.

[0171] According to some embodiments, the second sensing coil CF may be referred to as a driving coil, and the first sensing coil RF may be referred to as a sensing coil, but embodiments of the present disclosure are not limited thereto, and vice versa. According to some embodiments, the first sensing coil RF and the second sensing coil CF may be partially included in the driving coil and the sensing coil.

[0172] When current flows through the drive coil, magnetic lines of force may be induced between the drive coil and the sensing coil. The sensing coil may sense the induced electromagnetic force emitted by the electromagnetic pen and output the induced electromagnetic force as a sensing signal to one terminal of the sensing coil. One terminal of the sensing coil may be connected to a signal line located in the peripheral area NAA.

[0173] Figure 10 It is along Figure 8 A cross-sectional view taken along line II-II'. Figure 11 It is along Figure 8 A cross-sectional view taken along line III-III'.

[0174] Reference Figure 10 and Figure 11 as well as Figure 8 and Figure 9 According to some embodiments, the digitizer 600 may include a first base layer BSL1, a first sensing coil RF positioned on one surface of the first base layer BSL1, a second sensing coil CF positioned on the other surface of the first base layer BSL1, a second base layer BSL2 positioned on the first sensing coil RF, a third base layer BSL3 positioned on the second sensing coil CF, a first bridge wire BP1 positioned on the second base layer BSL2, a second bridge wire BP2 positioned on the third base layer BSL3, a first insulating layer ILD1 positioned on the first bridge wire BP1, and a second insulating layer ILD2 positioned on the second bridge wire BP2.

[0175] The holes HL included in the folded portion 630 of the digitizer 600 may be formed while penetrating from the front surface 600_U toward the back surface 600_B of the digitizer 600. For example, the holes HL included in the folded portion 630 of the digitizer 600 may include a first base hole HL_a, a second base hole HL_b, and a third base hole HL_c that penetrate the first base layer BSL1, the second base layer BSL2, and the third base layer BSL3, respectively, and a first insulating hole OP1 and a second insulating hole OP2 that penetrate the first insulating layer ILD1 and the second insulating layer ILD2, respectively. The inner surfaces of the first insulating hole OP1 and the second insulating hole OP2, as well as the inner surfaces of the first base hole HL_a, the second base hole HL_b, and the third base hole HL_c, may be aligned with each other.

[0176] The first sensing coil RF may be positioned on the front surface of the first base layer BSL1, and the second sensing coil CF may be positioned on the rear surface of the first base layer BSL1. The first sensing coil RF and the second sensing coil CF may overlap in a third direction DR3, which is a thickness direction, with the first base layer BSL1 interposed therebetween. The second base layer BSL2 may be positioned on the first sensing coil RF, and the third base layer BSL3 may be positioned on the second sensing coil CF.

[0177] Will combine Figure 12 and Figure 13 The first base layer BSL1 , the second base layer BSL2 , and the third base layer BSL3 are described.

[0178] According to some embodiments, the first sensing coil RF positioned at the first non-folding portion 610 and the second non-folding portion 620 may extend in a line shape along the second direction DR2 in a cross-sectional view, and the plurality of first sensing coils RF positioned at the folding portion 630 may be arranged to be spaced apart from each other in an island shape along the second direction DR2 in a cross-sectional view. The plurality of second sensing coils CF positioned at the first non-folding portion 610, the second non-folding portion 620, and the folding portion 630 may be arranged to be spaced apart from each other in an island shape along the second direction DR2 in a cross-sectional view.

[0179] However, the embodiment according to the present disclosure is not limited thereto, and the cross-sectional shape may vary depending on the horizontal loop arrangement and the vertical loop arrangement of the first sensing coil RF and the second sensing coil CF.

[0180] The first bridge wire BP1 may be positioned on the second base layer BSL2, and the second bridge wire BP2 may be positioned on the third base layer BSL3. The first bridge wire BP1 may be connected to the first sensing coil RF through a first bridge contact hole CNT1 included in the second base layer BSL2. The second bridge wire BP2 may be connected to the second sensing coil CF through a second bridge contact hole CNT2 included in the third base layer BSL3.

[0181] The first and second bridge lines BP1 and BP2 may be arranged in a line shape in a cross-sectional view while in the first non-folding area NFA1 (see Figure 6 ) and the second unfolded region NFA2 (see Figure 6 ) extends along the second direction DR2 and may be arranged in an island shape in a cross-sectional view, while in the folding area FDA (see Figure 6 However, the embodiments according to the present disclosure are not limited thereto, and the cross-sectional shape may vary depending on the horizontal loop arrangement and the vertical loop arrangement of the first and second bridge lines BP1 and BP2.

[0182] like Figure 8 and Figure 9 As shown in FIG, in the digitizer 600 according to some embodiments, when the number of wires positioned between adjacent holes HL in a plan view increases, or when the number of wires densely positioned in the peripheral area NAA increases, some wires of the first sensing coil RF and the second sensing coil CF can be distributed and positioned in several layers via the bridge wires BP1 and BP2. Therefore, by increasing the number of sensing coils positioned between the holes HL, the density of the sensing coils positioned between the holes HL can be increased, thereby providing a digitizer 600 with improved sensing performance. Furthermore, by preventing or reducing interference between wires densely arranged in the peripheral area NAA, a digitizer 600 with improved reliability can be provided.

[0183] The first insulating layer ILD1 may be positioned on the first bridge line BP1. The first insulating layer ILD1 may be positioned at the front surface 600_U of the digitizer 600 to cover the first bridge line BP1.

[0184] The second insulating layer ILD2 may be positioned on the second bridge line BP2.The second insulating layer ILD2 may be positioned at the back surface 600_B of the digitizer 600 to cover the second bridge line BP2.

[0185] According to some embodiments, the first insulating layer ILD1 and the second insulating layer ILD2 may have a color (e.g., a set color or a predetermined color). For example, the first insulating layer ILD1 and the second insulating layer ILD2 may have a black color. This may be formed by coating an insulating material containing a dye and / or pigment on the second base layer BSL2 and the third base layer BSL3. Each of the first insulating layer ILD1 and the second insulating layer ILD2 may include a single inorganic layer or a single organic layer, or multiple inorganic layers or multiple organic layers.

[0186] In some embodiments, the digitizer 600 may include a first wiring layer F1, a second wiring layer F2, a third wiring layer F3, and a fourth wiring layer F4. The third wiring layer F3 may be positioned on the fourth wiring layer F4, the second wiring layer F2 may be positioned on the third wiring layer F3, and the first wiring layer F1 may be positioned on the second wiring layer F2.

[0187] Although four wiring layers F1, F2, F3, and F4 are shown in the drawings, embodiments of the present disclosure are not limited thereto. The number of wiring layers may vary depending on design methods such as loop density and loop arrangement of the digitizer 600.

[0188] The first wiring layer F1 may include a first bridge line BP1 , the second wiring layer F2 may include a first sensing coil RF, the third wiring layer F3 may include a second sensing coil CF, and the fourth wiring layer F4 may include a second bridge line BP2 .

[0189] Figure 12 is a cross-sectional view illustrating a base layer of a digitizer according to some embodiments. Figure 13 is a plan view illustrating a base layer of a digitizer according to some embodiments.

[0190] Reference Figure 12 and Figure 13 , the base layer BSL may include a first base layer BSL1 , a second base layer BSL2 positioned on one surface of the first base layer BSL1 , and a third base layer BSL3 positioned on the other surface of the first base layer BSL1 .

[0191] The base layer BSL may include a matrix MT (matrix portion) containing a filler and an elastomer, and fiber strands GFL1 and GFL2 (reinforcement fibers) in a woven shape positioned within the matrix MT. Each of the first base layer BSL1, the second base layer BSL2, and the third base layer BSL3 may be a prepreg including fiber strands GFL1 or GFL2 extending in one direction. The fiber strands GFL1 and GFL2 may include glass fiber reinforced plastic (GFRP).

[0192] Each of the fiber lines GFL1 and GFL2 may be provided in the form of a bundle of a plurality of glass fibers GL. The diameter of a glass fiber GL included in one fiber line may be 3 μm or more and 10 μm or less. However, the diameter of the glass fiber GL is not limited to the above numerical range.

[0193] The fiber lines GFL1 and GFL2 may be alternately arranged along the first direction DR1 and the second direction DR2 to have a woven shape in a plan view. For example, the first base layer BSL1 may include the first fiber lines GFL1 extending in the second direction DR2, and the second and third base layers BSL2 and BSL3 may include the second fiber lines GFL2 extending in the first direction DR1.

[0194] The fiber lines GFL1 and GFL2 may be positioned in a matrix MT. The matrix MT according to some embodiments may include at least one of epoxy, polyester, polyamide, polycarbonate, polypropylene, polybutylene, and vinyl ester.

[0195] The matrix MT may comprise fillers and elastomers.

[0196] The filler included in the matrix MT may include at least one of silica, barium sulfate, sintered talc, barium titanate, titanium oxide, clay, alumina, mica, boehmite, zinc borate, and zinc stannate.

[0197] The elastomer included in the matrix MT may be a polymer material exhibiting rubber elasticity. For example, the elastomer may include at least one of butadiene rubber, styrene-butadiene rubber, isoprene rubber, styrene-isoprene rubber, polyester rubber, polybutadiene, hydrogenated polybutadiene, nitrile rubber, acrylic rubber, and silicone rubber.

[0198] In the digitizer 600 according to some embodiments, the digitizer 600 that recognizes a touch input and the support member of the prepreg structure that performs a support function are integrated, so that the display device 10 (see Figure 1 ) can be relatively reduced in thickness.

[0199] Furthermore, the base layer BSL of the digitizer 600 according to some embodiments includes fiber bundles of glass fiber reinforced plastic positioned in a matrix MT so that the display panel 100 is protected during folding (see FIG. Figure 6 ), and the matrix MT of the base layer BSL includes an elastomer as a polymer material having elasticity, so that the folded portion 630 (see FIG. 1 ) of the digitizer 600 can be prevented or reduced due to external force during the folding operation of the display device 10. Figure 6 ) cracks appear in the .

[0200] The digitizer 600 according to some embodiments can function as a protective member and a support member, and can also function as a sensing member. Therefore, a separate metal plate for protecting the display panel 100 can be omitted, and a digitizer separately disposed at the folding portion 630 can be omitted. Consequently, a slim display device 10 can be provided at a relatively reduced cost.

[0201] Hereinafter, the arrangement of loops included in the digitizer 600 and the arrangement of lines included in the loops will be described as examples.

[0202] Figure 14 is a plan view illustrating a horizontal loop according to some embodiments. Figure 15 and Figure 16 is a plan view illustrating a vertical loop according to some embodiments.

[0203] Reference Figures 14 to 16 The digitizer 600 may include horizontal loops X1, X2, and X3 (e.g., a second loop group) having long sides extending in the second direction DR2 and short sides extending in the first direction DR1, and vertical loops Y0, Y1, Y2, Y3, and Y4 (e.g., a first loop group) having long sides extending in the first direction DR1 and short sides extending in the second direction DR2.

[0204] The horizontal loops X1, X2, and X3 and the vertical loops Y0, Y1, Y2, Y3, and Y4 may each include at least one closed loop. For example, as shown in the accompanying drawings, the horizontal loops X1, X2, and X3 and the vertical loops Y0, Y1, Y2, Y3, and Y4 may each include two closed loops. However, the number of loops included in each loop is not limited thereto, and the horizontal loops X1, X2, and X3 and the vertical loops Y0, Y1, Y2, Y3, and Y4 may each include more than two closed loops.

[0205] In the digitizer 600 according to some embodiments, the sensing sensitivity of the digitizer 600 may be improved as the number of loops included in each loop increases.

[0206] like Figure 14As shown in , the horizontal loops X1, X2, and X3 may be arranged along the first direction DR1. For example, the second horizontal loop X2 may be positioned on one side of the first horizontal loop X1 in the first direction DR1, and the third horizontal loop X3 may be positioned on one side of the second horizontal loop X2 in the first direction DR1.

[0207] In some embodiments, the horizontal loops X1, X2, and X3 may at least partially overlap with each other in the second direction DR2 (i.e., at the long sides). For example, at least a portion of the first horizontal loop X1 may overlap with the second horizontal loop X2 in the second direction DR2, and at least a portion of the second horizontal loop X2 may overlap with the third horizontal loop X3 in the second direction DR2.

[0208] The first horizontal loop X1 may be located adjacent to the one end 600a of the digitizer 600 in the first direction DR1. The first horizontal loop X1 may include a first line X1_1 and a second line X1_2 crossing the folded portion 630 in the second direction DR2.

[0209] The first loop and the second loop included in the first horizontal loop X1 may overlap with each other for the majority of their area in the second direction DR2. For example, the first loop of the first line X1_1 of the first horizontal loop X1 and the second loop of the second line X1_2 of the first horizontal loop X1 may overlap with each other for the majority of their area in the second direction DR2. According to some embodiments, the first loop of the first horizontal loop X1 may overlap with the second loop of the first horizontal loop X1 by 90% (or approximately 90%) or more of the area of ​​the first loop.

[0210] The second horizontal loop X2 may include a first line X2_1 and a second line X2_2 crossing the folded portion 630 in the second direction DR2.

[0211] The first and second loops included in the second horizontal loop X2 may partially overlap with each other in the second direction DR2. The overlapping area of ​​the first and second loops included in the second horizontal loop X2 may be smaller than the overlapping area of ​​the first and second loops included in the first horizontal loop X1. For example, a portion of the area of ​​the first loop included in the second horizontal loop X2 and a portion of the area of ​​the second loop included in the second horizontal loop X2 may overlap with each other in the second direction DR2. According to some embodiments, the first loop of the second horizontal loop X2 may overlap with the second loop of the second horizontal loop X2 by 50% (or approximately 50%) of the area of ​​the first loop.

[0212] Since the third horizontal loop X3 may have the same shape as that of the second horizontal loop X2 , some repeated descriptions of the third horizontal loop X3 may be omitted.

[0213] like Figure 15 and Figure 16 As shown in FIG, the vertical loops Y0, Y1, Y2, Y3, and Y4 may be arranged along the second direction DR2. For example, the central vertical loop Y0 may be arranged at the center of the folding portion 630 (or approximately at the center of the folding portion 630). The first vertical loop Y1 may be positioned on the other side of the central vertical loop Y0 in the second direction DR2, and the second vertical loop Y2 may be positioned on one side of the central vertical loop Y0 in the second direction DR2. The third vertical loop Y3 may be positioned on the other side of the first vertical loop Y1 in the second direction DR2, and the fourth vertical loop Y4 may be positioned on one side of the second vertical loop Y2 in the second direction DR2.

[0214] In some embodiments, the vertical loops Y0, Y1, Y2, Y3, and Y4 may at least partially overlap with each other in the first direction DR1. For example, the first vertical loop Y1 and the second vertical loop Y2 may overlap with the central vertical loop Y0 in the first direction DR1, the third vertical loop Y3 may overlap with the first vertical loop Y1 in the first direction DR1, and the fourth vertical loop Y4 may overlap with the second vertical loop Y2 in the first direction DR1.

[0215] The first and second loops included in each of the vertical loops Y0, Y1, Y2, Y3, and Y4 may partially overlap with each other in the first direction DR1. For example, the first and second loops included in the central vertical loop Y0 may partially overlap with each other in the first direction DR1, the first and second loops included in the first vertical loop Y1 may partially overlap with each other in the first direction DR1, and the first and second loops included in the second vertical loop Y2 may partially overlap with each other in the first direction DR1. The first and second loops included in the third vertical loop Y3 may partially overlap with each other in the first direction DR1, and the first and second loops included in the fourth vertical loop Y4 may partially overlap with each other in the first direction DR1. According to some embodiments, the first loop included in each of the vertical loops Y0, Y1, Y2, Y3, and Y4 may overlap with the second loop included in each of the vertical loops Y0, Y1, Y2, Y3, and Y4 by 50% (or approximately 50%) or more of the area of ​​the first loop and less than 90% of the area of ​​the first loop.

[0216] The central vertical loop Y0 may be positioned at the center of the folded portion 630 (or substantially at the center of the folded portion 630). Long sides of the central vertical loop Y0 may be positioned at the first non-folded portion 610 and the second non-folded portion 620. The central vertical loop Y0 may include a first line Y0_1 and a second line Y0_2 crossing the folded portion 630 in the second direction DR2.

[0217] The first vertical loop Y1 may be arranged to be offset from the folded portion 630 toward the second non-folded portion 620. Long sides of the first vertical loop Y1 may be positioned at the second non-folded portion 620 and the folded portion 630. The first vertical loop Y1 may include a first line Y1_1 and a second line Y1_2 crossing the folded portion 630 in the second direction DR2, and a third line Y1_3 and a fourth line Y1_4 crossing the folded portion 630 in the first direction DR1.

[0218] The second vertical loop Y2 may be arranged offset from the folded portion 630 toward the first non-folded portion 610. Long sides of the second vertical loop Y2 may be positioned at the first non-folded portion 610 and the folded portion 630. The second vertical loop Y2 may include a first line Y2_1 and a second line Y2_2 crossing the folded portion 630 in the second direction DR2, and a third line Y2_3 and a fourth line Y2_4 crossing the folded portion 630 in the first direction DR1.

[0219] The third vertical loop Y3 may be arranged to be offset from the folded portion 630 toward the second non-folded portion 620. The degree to which the third vertical loop Y3 is offset from the folded portion 630 toward the second non-folded portion 620 may be greater than the degree to which the first vertical loop Y1 is offset from the folded portion 630 toward the second non-folded portion 620. Long sides of the third vertical loop Y3 may be positioned at the second non-folded portion 620 and the folded portion 630. The third vertical loop Y3 may include a first line Y3_1 and a second line Y3_2 that cross the folded portion 630 in the first direction DR1.

[0220] The fourth vertical loop Y4 may be arranged to be offset from the folded portion 630 toward the first non-folded portion 610. The degree of offset of the fourth vertical loop Y4 from the folded portion 630 toward the first non-folded portion 610 may be greater than the degree of offset of the second vertical loop Y2 from the folded portion 630 toward the first non-folded portion 610. The long side of the fourth vertical loop Y4 may be positioned at the first non-folded portion 610 and the folded portion 630. The fourth vertical loop Y4 may include a first line Y4_1 and a second line Y4_2 that cross the folded portion 630 in the first direction DR1.

[0221] In some embodiments, the long side of the first horizontal loop X1 , the long side of the second horizontal loop X2 , and the short sides of the vertical loops Y0 , Y1 , Y2 , Y3 , and Y4 may be located adjacent to one end 600 a of the digitizer 600 in the first direction DR1 .

[0222] In the first and second non-folding portions 610 and 620, the lines located adjacent to the one end 600a of the digitizer 600 may be densely located in the peripheral area NAA (see Figure 8 )middle.

[0223] Since the hole HL is positioned in the folded portion 630, the wire positioned at the folded portion 630 can cross the folded portion 630 while bypassing the hole HL. Since the gap between the holes HL is smaller than the width of the peripheral area NAA of the first and second non-folded portions 610 and 620, it may be difficult to arrange the wires crossing the folded portion 630 among the wires positioned adjacent to the one end 600a of the digitizer 600 so that they do not interfere with each other.

[0224] In the digitizer 600 according to some embodiments, among the lines located adjacent to one end 600a of the digitizer 600, the lines crossing the folded portion 630 are distributed and located in the first row R1 (see Figure 17 ), the second row R2 (see Figure 17 ) and the first wiring layer F1 (see Figure 10 ), the second wiring layer F2 (see Figure 10 ), the third wiring layer F3 (see Figure 10 ) and the fourth wiring layer F4 (see Figure 10 ) so that the interference between the lines can be minimized or relatively reduced. Figures 17 to 21B Describe this.

[0225] Figures 17 to 20 It shows Figure 8 An enlarged plan view of lines of loops respectively positioned in the first to fourth wiring layers in the region A. Figure 21A It is shown along Figures 17 to 20 A cross-sectional view of the outer periphery of the folded portion taken along line IV-IV'. Figure 21B It is shown along Figures 17 to 20 A cross-sectional view of the central portion of the folded portion taken along line VV'.

[0226] Reference Figures 17 to 21B as well as Figures 14 to 16 The folded portion 630 may include a plurality of holes HL. The plurality of holes HL may include a first group of holes GHL1 positioned in odd columns C2n-1 and a second group of holes GHL2 positioned in even columns C2n. n is a positive integer.

[0227] The odd columns C2n-1 and the even columns C2n may be alternately arranged in the second direction DR2. The first group of holes GHL1 and the second group of holes GHL2 may be alternately arranged in the second direction DR2. The first group of holes GHL1 and the second group of holes GHL2 may be arranged to be spaced apart from each other in the second direction DR2.

[0228] The first group of holes GHL1 may include a first hole HL1 and a second hole HL2 arranged side by side in a first direction DR1. The first hole HL1 and the second hole HL2 may be arranged to be spaced apart from each other in the first direction DR1. The second group of holes GHL2 may include a third hole HL3 arranged to be spaced apart from the first hole HL1 and the second hole HL2 in the second direction DR2.

[0229] The third hole HL3 may overlap each of the first hole HL1 and the second hole HL2 in the second direction DR2. The folded portion 630 may include a first row R1 where the first and third holes HL1 and HL3 overlap in the second direction DR2, and a second row R2 where the second and third holes HL2 and HL3 overlap in the second direction DR2.

[0230] The first line X1_1 of the first horizontal loop X1 and the second line X1_2 of the first horizontal loop X1 may be positioned in the same first row R1 in the folded portion 630. For example, the first line X1_1 of the first horizontal loop X1 and the second line X1_2 of the first horizontal loop X1 may cross the folded portion 630 in the second direction DR2 while bypassing the first hole HL1 and the third hole HL3 along the first row R1.

[0231] The first line X2_1 of the second horizontal loop X2 may be positioned in the second row R2 in the folded portion 630, and the second line X2_2 of the second horizontal loop X2 may be positioned in the first row R1 in the folded portion 630. For example, the first line X2_1 of the second horizontal loop X2 may cross the folded portion 630 in the second direction DR2 while bypassing the second hole HL2 and the third hole HL3 along the second row R2, and the second line X2_2 of the second horizontal loop X2 may cross the folded portion 630 in the second direction DR2 while bypassing the first hole HL1 and the third hole HL3 along the first row R1.

[0232] The first line Y0_1 of the central vertical loop Y0 may be positioned in the first row R1 in the folded portion 630, and the second line Y0_2 of the central vertical loop Y0 may be positioned in the second row R2 in the folded portion 630. For example, the first line Y0_1 of the central vertical loop Y0 may cross the folded portion 630 in the second direction DR2 while bypassing the first hole HL1 and the third hole HL3 along the first row R1, and the second line Y0_2 of the central vertical loop Y0 may cross the folded portion 630 in the second direction DR2 while bypassing the second hole HL2 and the third hole HL3 along the second row R2.

[0233] The first line Y1_1 of the first vertical loop Y1 may be positioned in the first row R1 in the folded portion 630, and the second line Y1_2 of the first vertical loop Y1 may be positioned in the second row R2 in the folded portion 630. For example, the first line Y1_1 of the first vertical loop Y1 may cross the folded portion 630 in the second direction DR2 while bypassing the first hole HL1 and the third hole HL3 along the first row R1, and the second line Y1_2 of the first vertical loop Y1 may cross the folded portion 630 in the second direction DR2 while bypassing the second hole HL2 and the third hole HL3 along the second row R2.

[0234] The third line Y1_3 of the first vertical loop Y1 may be positioned in at least a portion of the first row R1 in the folded portion 630, and the fourth line Y1_4 of the first vertical loop Y1 may be positioned in at least a portion of the second row R2 in the folded portion 630. For example, the third line Y1_3 of the first vertical loop Y1 may cross the folded portion 630 in the second direction DR2 while bypassing the first hole HL1 and the third hole HL3 along the first row R1 and then extend in the first direction DR1, and the fourth line Y1_4 of the first vertical loop Y1 may cross the folded portion 630 in the second direction DR2 while bypassing the second hole HL2 and the third hole HL3 along the second row R2 and then extend in the first direction DR1.

[0235] For example, the folding portion 630 may include a central portion CP and peripheral portions MP positioned on both sides of the central portion CP. The third line Y1_3 and the fourth line Y1_4 of the first vertical loop Y1 may cross at least a portion of the peripheral portion MP of the folding portion 630 in the second direction DR2 and then extend in the first direction DR1. In this case, the third line Y1_3 and the fourth line Y1_4 of the first vertical loop Y1 may not be positioned at the central portion CP of the folding portion 630. In the digitizer 600 and the display device 10 including the digitizer 600 according to some embodiments (see Figure 1 ), the occurrence of cracks in the wiring can be minimized or relatively reduced by minimizing or relatively reducing the wiring arrangement at the central portion CP where the folding stress is greatest when the display device 10 is folded.

[0236] The central portion CP may be positioned at the center of the folded portion 630. The central portion CP may extend in the first direction DR1. The peripheral portions MP may be positioned on both sides of the central portion CP in the second direction DR2. The peripheral portions MP may be positioned between the central portion CP and the first non-folded portion 610 and between the central portion CP and the second non-folded portion 620 in the second direction DR2. The peripheral portions MP may extend in the first direction DR1.

[0237] The first line Y2_1 of the second vertical loop Y2 may be positioned in the first row R1 in the folded portion 630, and the second line Y2_2 of the second vertical loop Y2 may be positioned in the second row R2 in the folded portion 630. For example, the first line Y2_1 of the second vertical loop Y2 may cross the folded portion 630 in the second direction DR2 while bypassing the first hole HL1 and the third hole HL3 along the first row R1, and the second line Y2_2 of the second vertical loop Y2 may cross the folded portion 630 in the second direction DR2 while bypassing the second hole HL2 and the third hole HL3 along the second row R2.

[0238] The third line Y2_3 of the second vertical loop Y2 may be positioned in at least a portion of the first row R1 in the folded portion 630, and the fourth line Y2_4 of the second vertical loop Y2 may be positioned in at least a portion of the second row R2 in the folded portion 630. For example, the third line Y2_3 of the second vertical loop Y2 may cross the folded portion 630 in the second direction DR2 while bypassing the first hole HL1 and the third hole HL3 along the first row R1 and then extend in the first direction DR1, and the fourth line Y2_4 of the second vertical loop Y2 may cross the folded portion 630 in the second direction DR2 while bypassing the second hole HL2 and the third hole HL3 along the second row R2 and then extend in the first direction DR1.

[0239] For example, the third line Y2_3 and the fourth line Y2_4 of the second vertical loop Y2 may extend in the first direction DR1 across at least a portion of the peripheral portion MP of the folded portion 630 in the second direction DR2. In this case, the third line Y2_3 and the fourth line Y2_4 of the second vertical loop Y2 may not be positioned at the central portion CP of the folded portion 630. In the digitizer 600 and the display device 10 including the digitizer 600 according to some embodiments, cracks in the wiring can be minimized or relatively reduced by minimizing or relatively reducing the wiring arrangement at the central portion CP where the folding stress is greatest when the display device 10 is folded.

[0240] The first line Y3_1 of the third vertical loop Y3 may be positioned in at least a portion of the second row R2 in the folded portion 630, and the second line Y3_2 of the third vertical loop Y3 may be positioned in at least a portion of the first row R1 in the folded portion 630. For example, the first line Y3_1 of the third vertical loop Y3 may cross the folded portion 630 in the second direction DR2 while bypassing the second hole HL2 and the third hole HL3 along the second row R2 and then extend in the first direction DR1, and the second line Y3_2 of the third vertical loop Y3 may cross the folded portion 630 in the second direction DR2 while bypassing the first hole HL1 and the third hole HL3 along the first row R1 and then extend in the first direction DR1.

[0241] For example, the first line Y3_1 and the second line Y3_2 of the third vertical loop Y3 may extend in the first direction DR1 across at least a portion of the peripheral portion MP of the folded portion 630 in the second direction DR2. In this case, the first line Y3_1 and the second line Y3_2 of the third vertical loop Y3 may not be positioned at the central portion CP of the folded portion 630. In the digitizer 600 and the display device 10 including the digitizer 600 according to some embodiments, cracks in the wiring can be minimized or relatively reduced by minimizing or relatively reducing the wiring arrangement at the central portion CP where folding stress is greatest when the display device 10 is folded.

[0242] The first line Y4_1 of the fourth vertical loop Y4 may be positioned in at least a portion of the second row R2 in the folded portion 630, and the second line Y4_2 of the fourth vertical loop Y4 may be positioned in at least a portion of the first row R1 in the folded portion 630. For example, the first line Y4_1 of the fourth vertical loop Y4 may cross the folded portion 630 in the second direction DR2 while bypassing the second hole HL2 and the third hole HL3 along the second row R2 and then extend in the first direction DR1, and the second line Y4_2 of the fourth vertical loop Y4 may cross the folded portion 630 in the second direction DR2 while bypassing the first hole HL1 and the third hole HL3 along the first row R1 and then extend in the first direction DR1.

[0243] For example, the first line Y4_1 and the second line Y4_2 of the fourth vertical loop Y4 may extend in the first direction DR1 across at least a portion of the peripheral portion MP of the folded portion 630 in the second direction DR2. In this case, the first line Y4_1 and the second line Y4_2 of the fourth vertical loop Y4 may not be positioned at the central portion CP of the folded portion 630. In the digitizer 600 and the display device 10 including the digitizer 600 according to some embodiments, the occurrence of cracks in the wiring can be minimized or relatively reduced by minimizing or relatively reducing the wiring arrangement at the central portion CP where the folding stress is greatest when the display device 10 is folded.

[0244] In some embodiments, a maximum of two lines may be positioned in each of the first row R1 and the second row R2. In this case, four lines may be positioned between the first hole HL1 and the second hole HL2 in the first direction DR1. However, embodiments of the present disclosure are not limited thereto, and the number of lines positioned between the first hole HL1 and the second hole HL2 in the first direction DR1 may vary.

[0245] In the digitizer 600 according to some embodiments, the maximum number of wires that can be accommodated in the folded portion 630 can be increased by increasing the number of layers in which the wires are positioned. For example, when the digitizer 600 includes a first wiring layer F1, a second wiring layer F2, a third wiring layer F3, and a fourth wiring layer F4, a total of 16 wires (e.g., 4 wires per layer×4 layers) can be positioned between the holes HL (e.g., the first hole HL1 and the second hole HL2) in the first direction DR1. Figure 21A 14 lines are shown in the cross-sectional view.

[0246] According to some embodiments, Figure 21A As shown in FIG, the first wire X1_1 and the second wire X1_2 of the first horizontal loop X1 and the first wire X2_1 of the second horizontal loop X2 can be positioned in the first wiring layer F1. The second wire X2_2 of the second horizontal loop X2 and the first wire Y2_1 and the second wire Y2_2 of the second vertical loop Y2 can be positioned in the second wiring layer F2. The first wire Y0_1 and the second wire Y0_2 of the central vertical loop Y0 and the first wire Y1_1 and the second wire Y1_2 of the first vertical loop Y1 can be positioned in the third wiring layer F3. The third wire Y1_3 of the first vertical loop Y1 (see FIG. Figure 20 ) and the fourth line Y1_4 (see Figure 20 ), the third line Y2_3 and the fourth line Y2_4 of the second vertical loop Y2, the first line Y3_1 and the second line Y3_2 of the third vertical loop Y3, and the fourth vertical loop Y4 (see Figure 20 ) of the first line Y4_1 (see Figure 20 ) and the second line Y4_2 (see Figure 20 ) can be positioned in the fourth wiring layer F4.

[0247] The above-described arrangement of the lines in the first row R1 and the second row R2 and the first wiring layer F1 , the second wiring layer F2 , the third wiring layer F3 , and the fourth wiring layer F4 is shown in Table 1 below.

[0248] Table 1

[0249]

[0250] In the digitizer 600 according to some embodiments, the lines of the vertical loops Y0, Y1, Y2, Y3, and Y4 are equally positioned in the first row R1 and the second row R2, thereby preventing or reducing the occurrence of an unrecognized area in the area adjacent to one end 600a of the digitizer 600 in the first direction DR1 and relatively improving sensing consistency.

[0251] By arranging the lines of the vertical loops Y0, Y1, Y2, Y3 and Y4 in equal numbers in the first row R1 and the second row R2, for example, arranging the first line Y0_1 of the central vertical loop Y0 in the first row R1 and arranging the second line Y0_2 of the central vertical loop Y0 in the second row R2, the occurrence of unrecognized areas can be prevented or reduced and the sensing consistency can be relatively improved.

[0252] However, the arrangement of the lines of the vertical loops Y0, Y1, Y2, Y3, and Y4 arranged in equal numbers in the first row R1 and the second row R2 is not limited to the description in the drawings and Table 1. For example, the first line Y0_1 of the central vertical loop Y0 may be positioned in the second row R2, and the second line Y0_2 of the central vertical loop Y0 may be positioned in the first row R1.

[0253] In some embodiments, the vertical line of the first vertical loop Y1, the second vertical loop Y2, the third vertical loop Y3, and the fourth vertical loop Y4 may be positioned in the lowest layer among the lines passing through the folded portion 630. The horizontal line of the horizontal loops X1, X2, and X3, and the horizontal line of the central vertical loop Y0, the first vertical loop Y1, and the second vertical loop Y2 may be positioned in a layer higher than the lowest layer among the lines passing through the folded portion 630.

[0254] The lowermost layer may refer to a layer located close to a surface exposed to the outside among one surface and another surface (or top surface and bottom surface) of the display device 10 when the display device 10 is folded. Figure 21B In the embodiment, if the surface adjacent to the first wiring layer F1 is a surface folded inward when the display device 10 is folded, and the surface adjacent to the fourth wiring layer F4 is a surface exposed to the outside when the display device 10 is folded, the fourth wiring layer F4 may be the lowermost layer.

[0255] The lowermost layer is a layer located near the outermost surface when the display device 10 is folded, and thus may have a folding radius larger than that of other layers. Therefore, the folding stress applied to the wire located in the lowermost layer may be large.

[0256] In the digitizer 600 and the display device 10 including the digitizer 600 according to some embodiments, the vertical lines of the first vertical loop Y1, the second vertical loop Y2, the third vertical loop Y3, and the fourth vertical loop Y4 among the lines passing through the folded portion 630 are positioned in the lowest layer, and the horizontal lines of the horizontal loops X1, X2, and X3 among the lines passing through the folded portion 630 and the horizontal lines of the central vertical loop Y0 and the first vertical loop Y1 and the second vertical loop Y2 are positioned in a layer higher than the lowest layer, so that the occurrence of cracks in the wiring in the folded portion 630 can be minimized or relatively reduced.

[0257] For example, Figure 21A As shown in , the first wire X1_1 and the second wire X1_2 of the first horizontal loop X1, the first wire X2_1 and the second wire X2_2 of the second horizontal loop X2, the first wire Y0_1 and the second wire Y0_2 of the central vertical loop Y0, the first wire Y1_1 and the second wire Y1_2 of the first vertical loop Y1, and the first wire Y2_1 and the second wire Y2_2 of the second vertical loop Y2 may be positioned in a layer higher than the lowest layer (e.g., the first wiring layer F1, the second wiring layer F2, and the third wiring layer F3). On the other hand, as Figure 20 and Figure 21A As shown in , the third wire Y1_3 and the fourth wire Y1_4 of the first vertical loop Y1, the third wire Y2_3 and the fourth wire Y2_4 of the second vertical loop Y2, the first wire Y3_1 and the second wire Y3_2 of the third vertical loop Y3, and the first wire Y4_1 and the second wire Y4_2 of the fourth vertical loop Y4 can be positioned in the lowest layer (e.g., the fourth wiring layer F4).

[0258] Furthermore, the folding stress is greater at the central portion CP of the folded portion 630 than at the peripheral portion MP of the folded portion 630, so that the central portion CP of the lowermost layer may be the portion where the folding stress is greatest. Since the vertical line is located in the lowermost layer and is located only at the peripheral portion MP except for the central portion CP, the occurrence of cracks in the wiring can be further minimized or relatively reduced.

[0259] For example, Figure 20As shown in , the third wire Y1_3 and the fourth wire Y1_4 of the first vertical loop Y1, the third wire Y2_3 and the fourth wire Y2_4 of the second vertical loop Y2, the first wire Y3_1 and the second wire Y3_2 of the third vertical loop Y3, and the first wire Y4_1 and the second wire Y4_2 of the fourth vertical loop Y4 may be positioned only at the peripheral portion MP and may not be positioned at the central portion CP. Therefore, as Figure 21B As shown in FIG, no wire may be positioned in the lowermost layer (e.g., at the center CP of the fourth wiring layer F4). Therefore, no wire is positioned at the center CP of the lowermost layer where the folding stress is greatest, so that cracks in the wiring can be minimized or relatively reduced.

[0260] Meanwhile, the arrangement of the respective lines for the first wiring layer F1, the second wiring layer F2, and the third wiring layer F3 is not limited to the description in the drawings and Table 1. For example, although it is shown that the horizontal loops X1 and X2 are positioned in the first wiring layer F1 and the second wiring layer F2, and the first wire Y0_1 and the second wire Y0_2 of the central vertical loop Y0, as well as the first wire Y1_1 and the second wire Y1_2 of the first vertical loop Y1 and the first wire Y2_1 and the second wire Y2_2 of the second vertical loop Y2 are positioned in the second wiring layer F2, the third wiring layer F3, and the fourth wiring layer F4, embodiments according to the present disclosure are not limited thereto.

[0261] According to some embodiments, the horizontal loops X1 and X2 may be positioned in the third wiring layer F3 as well as the first and second wiring layers F1 and F2. According to some embodiments, the central vertical loop Y0 may be positioned in the first and second wiring layers F1 and F2 as well as the third wiring layer F3. According to some embodiments, the first wire Y1_1 and the second wire Y1_2 of the first vertical loop Y1 may be positioned in the first and second wiring layers F1 and F2 as well as the third wiring layer F3. According to some embodiments, the first wire Y2_1 and the second wire Y2_2 of the second vertical loop Y2 may be positioned in the first and third wiring layers F1 and F3 as well as the second wiring layer F2.

[0262] Hereinafter, further details of the display device 10 according to some embodiments will be described. In the following embodiments, some repeated descriptions of components identical to those of the above embodiments may be omitted or simplified, and these components are designated by the same reference numerals, and the differences will be mainly described.

[0263] Figures 22 to 24 It shows Figure 8 An enlarged plan view of lines of loops in a region A respectively positioned in first to fourth wiring layers of a display device according to some embodiments. Figure 25A It is shown along Figures 22 to 24 A cross-sectional view of the outer periphery of the folded portion taken along line VI-VI'. Figure 25B It is shown along Figures 22 to 24 A cross-sectional view of the central portion of the folded portion taken along line VII-VII'.

[0264] Reference Figures 22 to 25B as well as Figures 14 to 16 According to some embodiments of the display device 10 (see Figure 1 ) and reference Figure 17 The display device 10 according to the embodiment described (see Figure 1 ) differs in the number of wiring layers and the number of lines passing through a row.

[0265] For example, according to some embodiments, a maximum of three lines may be positioned in each of the first row R1 and the second row R2 . In this case, six lines may be positioned between the first hole HL1 and the second hole HL2 in the first direction DR1 .

[0266] The first line X1_1 of the first horizontal loop X1 and the second line X1_2 of the first horizontal loop X1 may be positioned in the same first row R1 in the folded portion 630. For example, the first line X1_1 of the first horizontal loop X1 and the second line X1_2 of the first horizontal loop X1 may cross the folded portion 630 in the second direction DR2 while bypassing the first hole HL1 and the third hole HL3 along the first row R1.

[0267] The first line X2_1 of the second horizontal loop X2 may be positioned in the second row R2 in the folded portion 630, and the second line X2_2 of the second horizontal loop X2 may be positioned in the first row R1 in the folded portion 630. For example, the first line X2_1 of the second horizontal loop X2 may cross the folded portion 630 in the second direction DR2 while bypassing the second hole HL2 and the third hole HL3 along the second row R2, and the second line X2_2 of the second horizontal loop X2 may cross the folded portion 630 in the second direction DR2 while bypassing the first hole HL1 and the third hole HL3 along the first row R1.

[0268] The first line Y0_1 of the central vertical loop Y0 may be positioned in the first row R1 in the folded portion 630, and the second line Y0_2 of the central vertical loop Y0 may be positioned in the second row R2 in the folded portion 630. For example, the first line Y0_1 of the central vertical loop Y0 may cross the folded portion 630 in the second direction DR2 while bypassing the first hole HL1 and the third hole HL3 along the first row R1, and the second line Y0_2 of the central vertical loop Y0 may cross the folded portion 630 in the second direction DR2 while bypassing the second hole HL2 and the third hole HL3 along the second row R2.

[0269] The first line Y1_1 of the first vertical loop Y1 may be positioned in the first row R1 in the folded portion 630, and the second line Y1_2 of the first vertical loop Y1 may be positioned in the second row R2 in the folded portion 630. For example, the first line Y1_1 of the first vertical loop Y1 may cross the folded portion 630 in the second direction DR2 while bypassing the first hole HL1 and the third hole HL3 along the first row R1, and the second line Y1_2 of the first vertical loop Y1 may cross the folded portion 630 in the second direction DR2 while bypassing the second hole HL2 and the third hole HL3 along the second row R2.

[0270] The third line Y1_3 of the first vertical loop Y1 may be positioned in at least a portion of the first row R1 in the folded portion 630, and the fourth line Y1_4 of the first vertical loop Y1 may be positioned in at least a portion of the first row R1 in the folded portion 630. For example, the third line Y1_3 of the first vertical loop Y1 may cross the folded portion 630 in the second direction DR2 while bypassing the first hole HL1 and the third hole HL3 along the first row R1 and then extend in the first direction DR1, and the fourth line Y1_4 of the first vertical loop Y1 may cross the folded portion 630 in the second direction DR2 while bypassing the first hole HL1 and the third hole HL3 along the first row R1 and then extend in the first direction DR1.

[0271] For example, the third wire Y1_3 and the fourth wire Y1_4 of the first vertical loop Y1 may pass through at least a portion of the peripheral portion MP of the folded portion 630 in the second direction DR2 and then extend in the first direction DR1. In this case, the third wire Y1_3 and the fourth wire Y1_4 of the first vertical loop Y1 may not be positioned at the central portion CP of the folded portion 630. In the digitizer 600 and the display device 10 including the digitizer 600 according to some embodiments, cracks in the wiring can be minimized or relatively reduced by minimizing or relatively reducing the wiring arrangement at the central portion CP where the folding stress is greatest when the display device 10 is folded.

[0272] The first line Y2_1 of the second vertical loop Y2 may be positioned in the second row R2 in the folded portion 630, and the second line Y2_2 of the second vertical loop Y2 may be positioned in the first row R1 in the folded portion 630. For example, the first line Y2_1 of the second vertical loop Y2 may cross the folded portion 630 in the second direction DR2 while bypassing the second hole HL2 and the third hole HL3 along the second row R2, and the second line Y2_2 of the second vertical loop Y2 may cross the folded portion 630 in the second direction DR2 while bypassing the first hole HL1 and the third hole HL3 along the first row R1.

[0273] The third line Y2_3 of the second vertical loop Y2 may be positioned in at least a portion of the first row R1 in the folded portion 630, and the fourth line Y2_4 of the second vertical loop Y2 may be positioned in at least a portion of the first row R1 in the folded portion 630. For example, the third line Y2_3 of the second vertical loop Y2 may cross the folded portion 630 in the second direction DR2 while bypassing the first hole HL1 and the third hole HL3 along the first row R1 and then extend in the first direction DR1, and the fourth line Y2_4 of the second vertical loop Y2 may cross the folded portion 630 in the second direction DR2 while bypassing the first hole HL1 and the third hole HL3 along the first row R1 and then extend in the first direction DR1.

[0274] For example, the third line Y2_3 and the fourth line Y2_4 of the second vertical loop Y2 may extend in the first direction DR1 across at least a portion of the peripheral portion MP of the folded portion 630 in the second direction DR2. In this case, the third line Y2_3 and the fourth line Y2_4 of the second vertical loop Y2 may not be positioned at the central portion CP of the folded portion 630. In the digitizer 600 and the display device 10 including the digitizer 600 according to some embodiments, cracks in the wiring can be minimized or relatively reduced by minimizing or relatively reducing the wiring arrangement at the central portion CP where the folding stress is greatest when the display device 10 is folded.

[0275] The first line Y3_1 of the third vertical loop Y3 may be positioned in at least a portion of the second row R2 in the folded portion 630, and the second line Y3_2 of the third vertical loop Y3 may be positioned in at least a portion of the first row R1 in the folded portion 630. For example, the first line Y3_1 of the third vertical loop Y3 may cross the folded portion 630 in the second direction DR2 while bypassing the second hole HL2 and the third hole HL3 along the second row R2 and then extend in the first direction DR1, and the second line Y3_2 of the third vertical loop Y3 may cross the folded portion 630 in the second direction DR2 while bypassing the first hole HL1 and the third hole HL3 along the first row R1 and then extend in the first direction DR1.

[0276] For example, the first line Y3_1 and the second line Y3_2 of the third vertical loop Y3 may extend in the first direction DR1 across at least a portion of the peripheral portion MP of the folded portion 630 in the second direction DR2. In this case, the first line Y3_1 and the second line Y3_2 of the third vertical loop Y3 may not be positioned at the central portion CP of the folded portion 630. In the digitizer 600 and the display device 10 including the digitizer 600 according to some embodiments, cracks in the wiring can be minimized or relatively reduced by minimizing or relatively reducing the wiring arrangement at the central portion CP where folding stress is greatest when the display device 10 is folded.

[0277] The first line Y4_1 of the fourth vertical loop Y4 may be positioned in at least a portion of the second row R2 in the folded portion 630, and the second line Y4_2 of the fourth vertical loop Y4 may be positioned in at least a portion of the first row R1 in the folded portion 630. For example, the first line Y4_1 of the fourth vertical loop Y4 may cross the folded portion 630 in the second direction DR2 while bypassing the second hole HL2 and the third hole HL3 along the second row R2 and then extend in the first direction DR1, and the second line Y4_2 of the fourth vertical loop Y4 may cross the folded portion 630 in the second direction DR2 while bypassing the first hole HL1 and the third hole HL3 along the first row R1 and then extend in the first direction DR1.

[0278] For example, the first line Y4_1 and the second line Y4_2 of the fourth vertical loop Y4 may extend in the first direction DR1 across at least a portion of the peripheral portion MP of the folded portion 630 in the second direction DR2. In this case, the first line Y4_1 and the second line Y4_2 of the fourth vertical loop Y4 may not be positioned at the central portion CP of the folded portion 630. In the digitizer 600 and the display device 10 including the digitizer 600 according to some embodiments, the occurrence of cracks in the wiring can be minimized or relatively reduced by minimizing or relatively reducing the wiring arrangement at the central portion CP where the folding stress is greatest when the display device 10 is folded.

[0279] The digitizer 600 according to some embodiments may include a first wiring layer F1, a second wiring layer F2, and a third wiring layer F3. In this case, a total of 18 lines (e.g., 6 lines per layer×3 layers) may be positioned in the holes HL (e.g., the first hole HL1 (see FIG. 1 )) in the first direction DR1. Figure 22 ) and the second hole HL2 (see Figure 22 ))between.

[0280] According to some embodiments, Figure 25AAs shown in FIG, the first line X1_1 and the second line X1_2 of the first horizontal loop X1, the first line X2_1 of the second horizontal loop X2, the first line Y1_1 of the first vertical loop Y1, and the first line Y2_1 of the second vertical loop Y2 can be positioned in the first wiring layer F1. The second line X2_2 of the second horizontal loop X2, the first line Y0_1 and the second line Y0_2 of the central vertical loop Y0, the second line Y1_2 of the first vertical loop Y1, and the second line Y2_2 of the second vertical loop Y2 can be positioned in the second wiring layer F2. The third line Y1_3 of the first vertical loop Y1 (see FIG. Figure 24 ) and the fourth line Y1_4 (see Figure 24 ), the third line Y2_3 and the fourth line Y2_4 of the second vertical loop Y2, the first line Y3_1 and the second line Y3_2 of the third vertical loop Y3, and the fourth vertical loop Y4 (see Figure 24 ) of the first line Y4_1 (see Figure 24 ) and the second line Y4_2 (see Figure 24 ) can be positioned in the third wiring layer F3.

[0281] The above-described arrangement of the lines in the first row R1 and the second row R2 and the first wiring layer F1 , the second wiring layer F2 , and the third wiring layer F3 is shown in Table 2 below.

[0282] Table 2

[0283]

[0284] In the digitizer 600 according to some embodiments, the lines of the vertical loops Y0, Y1, Y2, Y3, and Y4 are equally positioned in the first row R1 and the second row R2, thereby preventing or reducing the occurrence of an unrecognized area in the area adjacent to one end 600a of the digitizer 600 in the first direction DR1 and relatively improving sensing consistency.

[0285] By arranging the lines of the vertical loops Y0, Y1, Y2, Y3 and Y4 in equal numbers in the first row R1 and the second row R2, for example, arranging the first line Y1_1 of the first vertical loop Y1 in the first row R1 and arranging the second line Y1_2 of the first vertical loop Y1 in the second row R2, the occurrence of unrecognized areas can be prevented or reduced and the sensing consistency can be relatively improved.

[0286] However, the arrangement of the lines of the vertical loops Y0, Y1, Y2, Y3, and Y4 arranged in equal numbers in the first row R1 and the second row R2 is not limited to the description in the drawings and Table 2. For example, the first line Y0_1 of the central vertical loop Y0 may be positioned in the second row R2, and the second line Y0_2 of the central vertical loop Y0 may be positioned in the first row R1.

[0287] In some embodiments, the vertical line of the first vertical loop Y1, the second vertical loop Y2, the third vertical loop Y3, and the fourth vertical loop Y4 may be positioned in the lowest layer among the lines passing through the folded portion 630. The horizontal line of the horizontal loops X1, X2, and X3, and the horizontal line of the central vertical loop Y0, the first vertical loop Y1, and the second vertical loop Y2 may be positioned in a layer higher than the lowest layer among the lines passing through the folded portion 630.

[0288] The lowermost layer may refer to a layer disposed close to a surface exposed to the outside among one surface and another surface (or top surface and bottom surface) of the display device 10 when the display device 10 is folded. Figure 25B In the embodiment, if the surface adjacent to the first wiring layer F1 is a surface folded inward when the display device 10 is folded, and the surface adjacent to the third wiring layer F3 is a surface exposed to the outside when the display device 10 is folded, the third wiring layer F3 may be the lowermost layer.

[0289] The lowermost layer is a layer located near the outermost surface when the display device 10 is folded, and thus may have a folding radius larger than that of other layers. Therefore, the folding stress applied to the wire located in the lowermost layer may be large.

[0290] In the digitizer 600 and the display device 10 including the digitizer 600 according to some embodiments, the vertical lines of the first vertical loop Y1, the second vertical loop Y2, the third vertical loop Y3, and the fourth vertical loop Y4 among the lines passing through the folded portion 630 are positioned in the lowest layer, and the horizontal lines of the horizontal loops X1, X2, and X3 among the lines passing through the folded portion 630, as well as the central vertical loop Y0 and the horizontal lines of the first vertical loop Y1 and the second vertical loop Y2 are positioned in a layer higher than the lowest layer, so that cracks in the wiring in the folded portion 630 can be minimized or relatively reduced.

[0291] For example, Figure 25A As shown in , the first wire X1_1 and the second wire X1_2 of the first horizontal loop X1, the first wire X2_1 and the second wire X2_2 of the second horizontal loop X2, the first wire Y0_1 and the second wire Y0_2 of the central vertical loop Y0, the first wire Y1_1 and the second wire Y1_2 of the first vertical loop Y1, and the first wire Y2_1 and the second wire Y2_2 of the second vertical loop Y2 may be positioned in a layer higher than the lowermost layer (e.g., the first wiring layer F1 and the second wiring layer F2). On the other hand, as Figure 24 and Figure 25AAs shown in , the third wire Y1_3 and the fourth wire Y1_4 of the first vertical loop Y1, the third wire Y2_3 and the fourth wire Y2_4 of the second vertical loop Y2, the first wire Y3_1 and the second wire Y3_2 of the third vertical loop Y3, and the first wire Y4_1 and the second wire Y4_2 of the fourth vertical loop Y4 can be positioned in the lowest layer (e.g., the third wiring layer F3).

[0292] Furthermore, the folding stress is greater at the central portion CP of the folded portion 630 than at the peripheral portion MP of the folded portion 630, so that the central portion CP of the lowermost layer may be the portion where the folding stress is greatest. Since the vertical line is located in the lowermost layer and is located only at the peripheral portion MP except for the central portion CP, the occurrence of cracks in the wiring can be further minimized or relatively reduced.

[0293] For example, Figure 24 As shown in , the third wire Y1_3 and the fourth wire Y1_4 of the first vertical loop Y1, the third wire Y2_3 and the fourth wire Y2_4 of the second vertical loop Y2, the first wire Y3_1 and the second wire Y3_2 of the third vertical loop Y3, and the first wire Y4_1 and the second wire Y4_2 of the fourth vertical loop Y4 may be positioned only at the peripheral portion MP and may not be positioned at the central portion CP. Therefore, as Figure 25B As shown in FIG, no wire may be positioned in the lowermost layer (e.g., at the center CP of the third wiring layer F3). Therefore, no wire is positioned at the center CP of the lowermost layer where the folding stress is greatest, so that cracks in the wiring can be minimized or relatively reduced.

[0294] At the same time, similar to the above reference Figure 17 In the embodiments described above, the arrangement of the respective lines for the first wiring layer F1 and the second wiring layer F2 is not limited to the description in the drawings and Table 2.

[0295] For example, although it is shown that the first line X1_1 and the second line X1_2 of the first horizontal loop X1, the first line X2_1 of the second horizontal loop X2, the first line Y1_1 and the first line Y2_1 of the first vertical loop Y1 and the second vertical loop Y2 are positioned in the first wiring layer F1, embodiments according to the present disclosure are not limited thereto and they may be positioned in the second wiring layer F2.

[0296] For another example, although the second line X2_2 of the second horizontal loop X2, the first line Y0_1 and the second line Y0_2 of the central vertical loop Y0, the second line Y1_2 of the first vertical loop Y1, and the second line Y2_2 of the second vertical loop Y2 are shown to be positioned in the second wiring layer F2, embodiments according to the present disclosure are not limited thereto and they may be positioned in the first wiring layer F1.

[0297] At the end of the detailed description, it will be appreciated by those skilled in the art that many changes and modifications may be made to the disclosed embodiments without departing from the spirit and scope of the embodiments according to the present disclosure. Therefore, the disclosed embodiments of the present disclosure are used in a general and descriptive sense only and not for the purpose of limitation.

Claims

1. A digitizer, wherein: The digitizer comprises: a folding portion comprising a first hole, a second hole, and a third hole, wherein the second hole is arranged on one side of the first hole in a first direction, and the third hole is arranged on one side of the first hole and the second hole in a second direction different from the first direction; a first unfolded portion on a first side of the folded portion in the second direction; a second unfolded portion on a second side of the folded portion opposite to the first side of the folded portion in the second direction; a first loop group comprising a plurality of loops having long sides in the first direction; and The second loop group includes a plurality of loops having long sides in the second direction, wherein: The folded portion includes a first row and a second row, in which the first holes and the third holes overlap in the second direction, and in which the second holes and the third holes overlap in the second direction. Among the plurality of loops included in the first loop group, each of the plurality of loops at least partially overlapping the folded portion includes a line crossing the folded portion along the first row or the second row, and The lines are arranged in equal numbers in the first row and the second row.

2. The digitizer according to claim 1, wherein: The first loop group includes a first loop, and A long side of the first loop overlaps the first and second unfolded portions.

3. The digitizer according to claim 2, wherein: A portion of the short side of the first loop is in the first row, and The remainder of the short side of the first loop is in the second row.

4. The digitizer according to claim 2, wherein: The first loop group includes a second loop, and A portion of a long side of the second loop overlaps the first unfolded portion, and a remaining portion of the long side of the second loop overlaps the folded portion.

5. The digitizer according to claim 4, wherein: A portion of a short side of the second loop is in the first row, and a remaining portion of the short side of the second loop is in the second row.

6. The digitizer according to claim 4, wherein: A portion of the second loop's long side overlapping the folded portion spans at least a portion of the first row, and a remaining portion of the second loop's long side overlapping the folded portion spans at least a portion of the second row.

7. The digitizer according to claim 4, wherein: The second loop group includes a third loop, and The long side of the third loop is in the first row.

8. The digitizer according to claim 7, wherein: The second loop group includes a fourth loop, and A portion of a long side of the fourth loop is in the first row, and a remaining portion of the long side of the fourth loop is in the second row.

9. The digitizer according to claim 1, wherein: The digitizer further comprises: at least one substrate layer comprising reinforcing fibers; and At least one wiring layer on the base layer, wherein The plurality of loops of each of the first loop group and the second loop group include a plurality of lines extending in the first direction and the second direction, respectively, and The plurality of lines are in the wiring layer.

10. The digitizer according to claim 9, wherein: The base layer includes a first base layer, a second base layer on a first surface of the first base layer, and a third base layer on a second surface of the first base layer. The wiring layer includes a first wiring layer between the first base layer and the second base layer, a second wiring layer between the first base layer and the third base layer, and a third wiring layer on the second base layer, and The plurality of lines are distributed and positioned in the first to third wiring layers.

11. The digitizer according to claim 10, wherein: The maximum number of the plurality of lines in any one of the first to third wiring layers and between the first hole and the second hole in the first direction is six.

12. The digitizer according to claim 10, wherein: The wiring layer further includes a fourth wiring layer on the third base layer, and A maximum number of the plurality of lines in any one of the first to fourth wiring layers and between the first hole and the second hole in the first direction is four.

13. The digitizer according to claim 9, wherein: The reinforcing fibers include glass fiber reinforced plastic.

14. The digitizer according to claim 1, wherein: Each of the plurality of loops included in the first loop group and the second loop group includes two or more rings.

15. A display device, wherein: The display device includes: display panel; and a digitizer on the display panel and comprising a folded portion, a first loop group, and a second loop group, the folded portion comprising first holes in a first row and second holes in a second row, the second row being positioned on one side of the first row in a first direction, the first loop group comprising a plurality of loops having long sides in the first direction, the second loop group comprising a plurality of loops having long sides in a second direction different from the first direction, wherein, among the plurality of loops included in the first loop group, each of the plurality of loops at least partially overlapping the folded portion includes a plurality of lines crossing the folded portion along the first row or the second row, and The plurality of lines are arranged in equal numbers in the first row and the second row.

16. A digitizer, wherein: The digitizer comprises: a folded portion including a central portion extending in a first direction and peripheral portions on both sides of the central portion in a second direction different from the first direction; a first loop group comprising a plurality of loops having long sides in the first direction; a second loop group comprising a plurality of loops having long sides in the second direction; at least one substrate layer comprising reinforcing fibers; and A plurality of wiring layers, on the base layer, wherein Among the plurality of loops included in the first loop group, each of the plurality of loops at least partially overlapping the folded portion includes a long side line extending in the first direction and a short side line extending in the second direction, Among the plurality of loops included in the second loop group, each of the plurality of loops at least partially overlapping the folded portion includes a long side line extending in the second direction, The long side lines and the short side lines included in the first loop group and the long side lines included in the second loop group are in the plurality of wiring layers, and The long side lines included in the first loop group are in a lowermost layer among the plurality of wiring layers.

17. The digitizer of claim 16, wherein: The long side lines included in the first loop group are in the peripheral portion.

18. The digitizer of claim 17, wherein: The long side lines included in the first loop group cross the outer peripheral portion in the second direction and then extend in the first direction.

19. The digitizer of claim 16, wherein: The short side lines included in the first loop group and the long side lines included in the second loop group are in a layer higher than the lowermost layer.

20. The digitizer of claim 16, wherein: There is no line at the center portion of the lowermost layer.

21. The digitizer of claim 16, wherein: The base layer includes a first base layer, a second base layer on a first surface of the first base layer, and a third base layer on a second surface of the first base layer. The wiring layer includes a first wiring layer between the first base layer and the second base layer, a second wiring layer between the first base layer and the third base layer, and a third wiring layer on the second base layer, and The long side lines included in the first loop group are in the second wiring layer.

22. The digitizer of claim 16, wherein: The base layer includes a first base layer, a second base layer on a first surface of the first base layer, and a third base layer on a second surface of the first base layer. The wiring layer includes a first wiring layer between the first base layer and the second base layer, a second wiring layer between the first base layer and the third base layer, a third wiring layer on the second base layer, and a fourth wiring layer on the third base layer, and The long side lines included in the first loop group are in the fourth wiring layer.

23. The digitizer of claim 16, wherein: The lowermost layer is a layer, among the plurality of wiring layers, adjacent to a surface facing outward when the folding portion is folded.

24. A display device, wherein: The display device includes: display panel; and a digitizer, on said display panel, Wherein, the digitizer comprises: a folded portion comprising a central portion and peripheral portions on both sides of the central portion; a first loop group comprising a plurality of loops having long sides in a first direction; a second loop group comprising a plurality of loops having long sides in a second direction different from the first direction; at least one substrate layer comprising reinforcing fibers; and A plurality of wiring layers, on the base layer, wherein Among the plurality of loops included in the first loop group, each of the plurality of loops at least partially overlapping the folded portion includes a long side line extending in the first direction and a short side line extending in the second direction, Among the plurality of loops included in the second loop group, each of the plurality of loops at least partially overlapping the folded portion includes a long side line extending in the second direction, The long side lines and the short side lines included in the first loop group and the long side lines included in the second loop group are in the plurality of wiring layers, and The long side lines included in the first loop group are in a lowermost layer among the plurality of wiring layers.

Images