electronic devices

Abstract

This disclosure relates to an electronic device. The electronic device includes a display panel and an antenna, with an effective area and a peripheral area defined in the display panel, and the antenna having at least a portion overlapping the effective area. The antenna includes a first patterned portion, a second patterned portion, and a third patterned portion having a first characteristic impedance and a first grid structure. The second patterned portion is configured adjacent to the first patterned portion and has a second characteristic impedance and a second grid structure different from the first characteristic impedance. The third patterned portion is configured adjacent to the second patterned portion and has a third characteristic impedance and a third grid structure different from the second characteristic impedance. The second characteristic impedance has a value between the first characteristic impedance and the third characteristic impedance.

Description

[0001] This patent application claims priority to Korean Patent Application No. 10-2019-0137946, filed on October 31, 2019, the contents of which are incorporated herein by reference in their entirety. Technical Field

[0002] This disclosure relates to radio frequency devices with increased antenna efficiency and electronic devices including such radio frequency devices. Background Technology

[0003] Electronic devices include electronic modules. For example, an electronic device is a portable terminal or wearable device, and electronic modules include antenna modules, camera modules, or battery modules. Electronic devices are becoming increasingly functional and evolving to high-quality specifications, leading to an increase in the number of electronic modules included within them. However, as portable terminals become thinner and wearable devices become smaller, the space available for installing electronic modules is gradually decreasing. Summary of the Invention

[0004] This disclosure provides a radio frequency device with increased antenna efficiency and an electronic device including the radio frequency device.

[0005] Embodiments of the inventive concept include an electronic device comprising: a display panel having an effective area and a peripheral area; and an antenna, at least a portion of which is superimposed on the effective area. The antenna includes: a first patterned portion having a first characteristic impedance and a first grid structure; a second patterned portion configured adjacent to the first patterned portion and having a second characteristic impedance and a second grid structure different from the first characteristic impedance; and a third patterned portion configured adjacent to the second patterned portion and having a third characteristic impedance and a third grid structure different from the second characteristic impedance. The second characteristic impedance has a value between the first characteristic impedance and the third characteristic impedance.

[0006] The first pattern part, the second pattern part, and the third pattern part are arranged sequentially in the first direction. The first width of the first pattern part in the second direction intersecting the first direction is greater than the second width of the second pattern part in the second direction, and the third width of the third pattern part in the second direction is greater than the second width.

[0007] The first pattern part has a first opening with a first size, the second pattern part has a second opening with a second size, and the third pattern part has a third opening with a third size equal to the second size.

[0008] The first pattern section, the second pattern section, and the third pattern section are arranged sequentially in the first direction. The first number of the first openings arranged in the first pattern section along the second direction intersecting the first direction is greater than the second number of the second openings arranged in the second pattern section along the second direction. The third number of the third openings arranged in the third pattern section along the second direction is greater than the second number and less than the first number.

[0009] The first pattern part, the second pattern part, and the third pattern part are arranged sequentially in the first direction. The first width of the first pattern part in the second direction intersecting the first direction is greater than the second width of the second pattern part in the second direction, and the third width of the third pattern part in the second direction is equal to the second width.

[0010] The first pattern part has a first opening of a first size, the second pattern part has a second opening of a second size different from the first size, and the third pattern part has a third opening of a third size different from the second size.

[0011] The first pattern portion, the second pattern portion, and the third pattern portion are arranged sequentially in the first direction, and the width of the second opening in the second direction intersecting the first direction and the width of the third opening in the second direction are equal to each other. The width of the second opening in the first direction may be greater than the width of the third opening in the first direction.

[0012] The first pattern portion, the second pattern portion, and the third pattern portion are arranged sequentially in the first direction. The ratio of the width of the first opening in the first direction to the width in the second direction intersecting the first direction, the ratio of the width of the second opening in the first direction to the width in the second direction, and the ratio of the width of the third opening in the first direction to the width in the second direction are all equal to each other.

[0013] The number of second openings arranged along the second direction in the second pattern section is less than the number of third openings arranged along the second direction in the third pattern section. The number of second openings arranged along the second direction in the second pattern section is equal to the number of third openings arranged along the second direction in the third pattern section. The width of the line pattern in the second pattern section is less than the width of the line pattern in the third pattern section.

[0014] The first pattern portion includes a first line pattern defining a first opening, the second pattern portion includes a second line pattern defining a second opening, and the third pattern portion includes a third line pattern defining a third opening. The first line pattern, the second line pattern, and the third line pattern all have the same minimum width. The first pattern portion is a radiating portion of the radiating signal and is superimposed on the effective area.

[0015] The first pattern section, the second pattern section, and the third pattern section are arranged sequentially in the first direction. Each of the first pattern section, the second pattern section, and the third pattern section includes an opening with a rhomboid or oblique shape, the rhomboid or oblique shape having a first diagonal parallel to the first direction and a second diagonal parallel to a second direction intersecting the first direction.

[0016] The electronic device further includes an input sensor disposed between the display panel and the antenna, and having a sensing area having a size equal to or smaller than the size of the effective area. The electronic device also includes an input sensor disposed on the display panel and including a substrate insulating layer and sensing electrodes disposed on the substrate insulating layer, with a first patterned portion, a second patterned portion, and a third patterned portion disposed on the same layer as the sensing electrodes.

[0017] The input sensor includes a sensing region and an antenna region. A sensing electrode is disposed in the sensing region, and a first patterned portion, a second patterned portion, and a third patterned portion are disposed in the antenna region. The sensing region and the antenna region are superimposed on the effective region. The input sensor also includes a dummy electrode disposed on a substrate insulating layer, and the dummy electrode is configured to be adjacent to the antenna region and superimposed on the effective region. The input sensor also includes a dummy region, a dummy electrode is disposed in the dummy region, and the antenna region, the sensing region, and the dummy region are superimposed on the effective region. The sensing electrode includes a sensing pattern patterned to correspond to the shape of the first patterned portion.

[0018] Embodiments of the inventive concept include a radio frequency (RF) device comprising: a substrate layer; a first patterned portion disposed on the substrate layer, having a first characteristic impedance and a first opening; a second patterned portion disposed on the substrate layer, adjacent to the first patterned portion, having a second characteristic impedance different from the first characteristic impedance and a second opening; and a third patterned portion disposed on the substrate layer, adjacent to the second patterned portion, having a third characteristic impedance different from the second characteristic impedance and a third opening. The second characteristic impedance has a value between the first characteristic impedance and the third characteristic impedance.

[0019] The first dimension of the first opening, the second dimension of the second opening, and the third dimension of the third opening are all equal. Alternatively, the first dimension of the first opening may differ from the second dimension of the second opening, and the third dimension of the third opening may differ from the second dimension. The widths of the line patterns in the first pattern portion, the second pattern portion, and the third pattern portion are all equal. Alternatively, the width of the line pattern in the second pattern portion may be less than the width of the line pattern in the third pattern portion.

[0020] The first pattern part, the second pattern part, and the third pattern part are arranged sequentially in the first direction. The first width of the first pattern part in the second direction intersecting the first direction is greater than the second width of the second pattern part in the second direction, and the third width of the third pattern part in the second direction is greater than the second width.

[0021] The first pattern part, the second pattern part, and the third pattern part are arranged sequentially in the first direction. The first width of the first pattern part in the second direction intersecting the first direction is greater than the second width of the second pattern part in the second direction, and the third width of the third pattern part in the second direction is equal to the second width.

[0022] According to some embodiments, the antenna includes patterned portions, each having a characteristic impedance. The patterned portions have a grid structure, and the characteristic impedance of each patterned portion can be controlled by changing the shape of the grid structure. For example, the characteristic impedance of a patterned portion located in the middle is designed to have a value between the characteristic impedances of the patterned portions located at both ends. In this case, reflection loss due to changes in characteristic impedance can be reduced. Because reflection loss is reduced, antenna efficiency can be increased. Attached Figure Description

[0023] The above and other advantages of this disclosure will become readily apparent when considered in conjunction with the accompanying drawings and by referring to the following detailed description, in which:

[0024] Figure 1 This is a perspective view illustrating an electronic device according to an embodiment of the present disclosure;

[0025] Figure 2 This is a cross-sectional view illustrating an electronic device according to an embodiment of the present disclosure;

[0026] Figure 3 This is a plan view showing a display panel according to an embodiment of the present disclosure;

[0027] Figure 4 This is a plan view illustrating an input sensor according to an embodiment of the present disclosure;

[0028] Figure 5 This is a plan view showing an antenna according to an embodiment of the present disclosure;

[0029] Figure 6 This is a cross-sectional view illustrating an electronic device according to an embodiment of the present disclosure;

[0030] Figure 7 This is a plan view illustrating an input sensor according to an embodiment of the present disclosure;

[0031] Figure 8 It is shown Figure 7 An enlarged plan view of part AA' shown in the diagram;

[0032] Figure 9 It is shown Figure 7 An enlarged plan view of part AA' shown in the diagram;

[0033] Figure 10A , Figure 10B and Figure 10C This is a view showing the grid structure;

[0034] Figure 11 It is a graph showing the characteristic impedance based on the width of the grid structure;

[0035] Figure 12 This is an enlarged plan view showing an antenna according to an embodiment of the present disclosure;

[0036] Figure 13A , Figure 13B , Figure 13C and Figure 13D This is a view showing the grid structure;

[0037] Figure 14 It is a graph showing the characteristic impedance based on the width of the grid structure;

[0038] Figure 15 This is an enlarged plan view showing an antenna according to an embodiment of the present disclosure;

[0039] Figure 16 This is a view showing the grid structure;

[0040] Figure 17 It is a graph showing the characteristic impedance based on the width of the line pattern of the grid structure;

[0041] Figure 18 This is an enlarged plan view showing an antenna according to an embodiment of the present disclosure;

[0042] Figure 19 This is a view showing the grid structure;

[0043] Figure 20 It is a graph showing the characteristic impedance according to the ratio of the grid structure; and

[0044] Figure 21 This is an enlarged plan view of an antenna according to an embodiment of the present disclosure. Detailed Implementation

[0045] This disclosure relates to radio frequency (RF) devices. Embodiments of this disclosure include RF devices with increased antenna efficiency. Various electronic devices may include antenna devices. As portable devices become thinner and smaller, the number of electronic modules within the devices increases, reducing the space available for mounting antennas. As antenna size decreases, efficient antenna operation becomes more important.

[0046] In some cases, antenna efficiency can be reduced due to reflection losses that occur at the transitions between different antenna elements with different characteristic impedances. Therefore, according to embodiments of this disclosure, the antenna device includes one or more patterned portions, each with a unique impedance. The patterned portions may have a grid structure, and the impedance of each patterned portion can be controlled or adjusted by changing the shape or pattern of the grid structure.

[0047] For example, the characteristic impedance can be controlled by adjusting the width of different patterned portions of the antenna. Additionally or alternatively, the impedance can be controlled or adjusted by adjusting the size of the openings in the patterned portions of the antenna. Additionally or alternatively, the impedance can be controlled or adjusted by adjusting the thickness of the antenna's line pattern. Therefore, reflection loss caused by impedance variations at the interfaces between different grid patterns can be reduced. Because reflection loss is reduced, antenna efficiency can be improved.

[0048] In this disclosure, it will be understood that when an element or layer is referred to as being "on," "connected to," or "bonded to" another element or layer, the element or layer may be directly on, directly connected to, or directly bonded to the other element or layer, or there may be intermediate elements or layers present. The same reference numerals always denote the same element. In the accompanying drawings, for the purpose of effectively describing the technical content, the thickness, ratios, and dimensions of the components are exaggerated. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0049] It will be understood that although the terms “first,” “second,” etc., may be used herein to describe various elements, components, regions, layers, and / or parts, these elements, components, regions, layers, and / or parts are not limited by these terms. These terms are used only to distinguish one element, component, region, layer, or part from another element, component, region, layer, or part. Therefore, without departing from the teachings of this disclosure, the first element, first component, first region, first layer, or first part discussed below may be referred to as a second element, second component, second region, second layer, or second part. As used herein, unless the context clearly indicates otherwise, the singular forms “a” and “the” are also intended to include the plural forms.

[0050] For ease of description, spatially relative terms such as “below,” “under,” “down,” “above,” and “above” may be used herein to describe the relationship between one element or feature and another (or more) elements or features as illustrated in the accompanying drawings. Unless otherwise defined, all terms used herein (including technical and scientific terms) shall have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure pertains. It will also be understood that terms (such as those defined in a general dictionary) should be interpreted as having a meaning consistent with the meaning of the term in the context of the relevant field and shall not be interpreted in an idealized or overly formalized sense unless expressly defined herein.

[0051] It will also be understood that when the term "comprising" and variations thereof are used in this specification, it indicates the presence of the stated features, integrals, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or groups thereof.

[0052] The present disclosure will be explained in detail below with reference to the accompanying drawings.

[0053] Figure 1 This is a perspective view showing an electronic device 1000 according to an embodiment of the present disclosure;

[0054] Reference Figure 1 Electronic device 1000 can be a device activated in response to an electrical signal. For example, electronic device 1000 can be a mobile phone, tablet computer, car navigation unit, gaming unit, or wearable unit; however, electronic device 1000 is not limited to or restricted by these limitations. Figure 1 A mobile phone is shown as a representative example of electronic device 1000.

[0055] Electronic device 1000 can display an image through an effective area 1000A. The effective area 1000A may include a first display surface 1000MA that is substantially parallel to a plane defined by a first direction DR1 and a second direction DR2, and a second display surface 1000BA that is curved from the first display surface 1000MA.

[0056] The second display surface 1000BA can be bent from one side of the first display surface 1000MA. Multiple second display surfaces 1000BA can be provided. In this case, the second display surface 1000BA can be bent from at least both sides of the first display surface 1000MA. The effective region 1000A may include one first display surface 1000MA and one or more, and four or fewer, second display surfaces 1000BA. However, the shape of the effective region 1000A is not limited to or restricted by this, and the effective region 1000A may include the first display surface 1000MA.

[0057] The thickness direction of the electronic device 1000 can be substantially parallel to a third direction DR3 that intersects the first direction DR1 and the second direction DR2. Therefore, the front (or upper) surface and the rear (or lower) surface of each component of the electronic device 1000 can be defined relative to the third direction DR3.

[0058] Figure 2 This is a cross-sectional view showing an electronic device 1000 according to an embodiment of the present disclosure.

[0059] Reference Figure 2 The electronic device 1000 may include a display panel 100, an input sensor 200, an antenna 300, and a window 400.

[0060] Display panel 100 can substantially generate images. Display panel 100 can be a light-emitting display panel. For example, display panel 100 can be an organic light-emitting display panel or a quantum dot light-emitting display panel. Additionally or alternatively, display panel 100 can be a light-receiving display panel. For example, display panel 100 can be a liquid crystal display panel.

[0061] Input sensor 200 can be disposed on display panel 100. Input sensor 200 can sense external input applied to it from the outside. External input can be user input. User input can include various external inputs (such as a part of the user's body, light, heat, pen, or pressure).

[0062] The input sensor 200 can be formed on the display panel 100 via a continuous process. Additionally or alternatively, the input sensor 200 can be bonded to the display panel 100 via an adhesive component. The adhesive component can include conventional adhesives or pressure-sensitive adhesives. The adhesive component can be a transparent adhesive component (such as a pressure-sensitive adhesive (PSA) film, an optically clear adhesive (OCA) film, or an optically clear resin (OCR)), but is not limited to these.

[0063] Antenna 300 may be disposed on input sensor 200. Antenna 300 may transmit, receive, or both transmit and receive wireless communication signals (e.g., radio frequency signals). Antenna 300 may be referred to as a "radio frequency device". Antenna 300 may include multiple radiating elements. Additionally or alternatively, the radiating elements may transmit, receive, or both transmit and receive the same frequency band, or may transmit, receive, or both transmit and receive different frequency bands.

[0064] Antenna 300 can be set in an effective area of ​​1000A (refer to...) Figure 1 In ), although the electronic device 1000 becomes thinner or smaller, or the effective area 1000A (refer to) Figure 1 The outer area of ​​) is reduced, but because the effective area 1000A (refer to) is ensured Figure 1 The size of the antenna 300 is such that space can be obtained to house the antenna 300.

[0065] Window 400 may be disposed on antenna 300. Window 400 may include an optically transparent insulating material. For example, window 400 may include glass or plastic material. Window 400 may have a single-layer structure or a multi-layer structure. As an example, window 400 may include multiple plastic films attached to each other by an adhesive. Window 400 may also include a glass substrate and plastic films attached to the glass substrate by an adhesive.

[0066] exist Figure 2 In this configuration, antenna 300 is disposed between input sensor 200 and window 400; however, antenna 300 is not limited to or not limited thereto. For example, antenna 300 may be disposed between input sensor 200 and display panel 100.

[0067] Figure 3 This is a plan view showing a display panel 100 according to an embodiment of the present disclosure.

[0068] Reference Figure 3 The display panel 100 may include an active area 100A and a peripheral area 100N. The active area 100A may be activated in response to an electrical signal. For example, the active area 100A may display an image. The peripheral area 100N may surround the active area 100A. A driving circuit or driving line may be provided in the peripheral area 100N to drive the active area 100A.

[0069] The display panel 100 may include a substrate layer 100-1, multiple pixels 110, multiple signal lines 120, 130 and 140, a power pattern 150, and multiple display pads (also known as solder pads or solder pads) 160.

[0070] The substrate layer 100-1 may include a synthetic resin layer. The synthetic resin layer may include a thermosetting resin. The substrate layer 100-1 may have a multilayer structure. For example, the substrate layer 100-1 may have a three-layer structure comprising a synthetic resin layer, an adhesive layer, and a synthetic resin layer. The synthetic resin layer may include at least one of polyimide resins, acrylic resins, methacrylic resins, polyisoprene, vinyl resins, epoxy resins, urethane resins, cellulose resins, siloxane resins, polyamide resins, and perylene resins; however, there are no specific limitations on the synthetic resin layer. Furthermore, the substrate layer 100-1 may include a glass substrate or an organic / inorganic composite substrate.

[0071] Signal lines 120, 130, and 140 can be electrically connected to pixel 110 and can transmit electrical signals to pixel 110. Figure 3 As a representative example, signal lines 120, 130, and 140 may include data line 120, scan line 130, and power line 140; however, this is merely exemplary. Signal lines 120, 130, and 140 may also include at least one of an initialization voltage line and an illumination control line; however, there are no specific limitations on signal lines 120, 130, and 140.

[0072] Pixel 110 can be arranged in the effective area 100A. In this embodiment, as a representative example, an enlarged equivalent circuit diagram of pixel 110 is shown. Pixel 110 may include a first transistor 111, a second transistor 112, a capacitor 113, and a light-emitting element 114. The first transistor 111 may be a switching device that controls the on-off state of pixel 110. The first transistor 111 may transmit or block data signals applied through data lines 120 in response to a scan signal applied to the first transistor 111 through scan lines 130.

[0073] Capacitor 113 can be connected to the first transistor 111 and the power line 140. Capacitor 113 can be charged with an amount of charge corresponding to the charge difference between the data signal provided from the first transistor 111 and the first power signal applied to the power line 140.

[0074] The second transistor 112 can be connected to the first transistor 111, the capacitor 113, and the light-emitting element 114. The second transistor 112 can control the drive current flowing through the light-emitting element 114 in response to the amount of charge charged in the capacitor 113. The on-time of the second transistor 112 can be determined based on the amount of charge charged in the capacitor 113. During its on-time, the second transistor 112 can provide a first power signal supplied through the power line 140 to the light-emitting element 114.

[0075] The light-emitting element 114 can generate light in response to an electrical signal or can control the amount of light. For example, the light-emitting element 114 may include an organic light-emitting element or a quantum dot light-emitting element.

[0076] The light-emitting element 114 can be connected to the power terminal 115 and can receive a power signal different from the first power signal provided from the power line 140 (hereinafter referred to as the "second power signal"). A drive current corresponding to the power signal difference between the electrical signal provided from the second transistor 112 and the second power signal can flow through the light-emitting element 114, and the light-emitting element 114 can generate light corresponding to the drive current. However, this is merely exemplary, and the pixel 110 can include electronics with various configurations and arrangements, and there is no specific limitation on the drive current.

[0077] A power pattern 150 can be set in the peripheral area 100N. The power pattern 150 can be electrically connected to the power line 140. Since the display panel 100 includes the power pattern 150, a first power signal with substantially the same level can be provided to multiple pixels 110.

[0078] Display pad 160 may include a first pad 161 and a second pad 162. Multiple first pads 161 may be provided, and each first pad 161 may be connected to a data line 120. The second pad 162 may be connected to a power pattern 150 and electrically connected to a power line 140. Display panel 100 may provide electrical signals supplied from the outside through display pad 160 to pixels 110. In addition to the first pad 161 and the second pad 162, display pad 160 may also include other pads to receive other electrical signals, and there are no specific limitations.

[0079] Figure 4 This is a plan view showing an input sensor 200 according to an embodiment of the present disclosure.

[0080] Reference Figure 4 The input sensor 200 may include a sensing area 200A and a peripheral area 200N. The sensing area 200A can be activated in response to an electrical signal. For example, the sensing area 200A may be an area for sensing input. The size of the sensing area 200A may be equal to or smaller than that of the display panel 100 (see reference). Figure 3 ) effective area 100A (refer to) Figure 3 The size of the outer region 200N can surround the sensing region 200A.

[0081] The input sensor 200 may include a substrate insulating layer 200-1, a first sensing electrode 210, a second sensing electrode 220, sensing lines 231 and 232, and a sensing pad 240. The first sensing electrode 210 and the second sensing electrode 220 may be disposed in a sensing region 200A. The sensing lines 231 and 232 and the sensing pad 240 may be disposed in a peripheral region 200N.

[0082] The substrate insulating layer 200-1 may be an inorganic layer comprising one of silicon nitride, silicon oxynitride, and silicon oxide. Alternatively or additionally, the substrate insulating layer 200-1 may be an organic layer comprising epoxy resin, acrylic resin, or imide resin. The substrate insulating layer 200-1 may be formed directly on the display panel 100 (see reference). Figure 2 On. Additionally or alternatively, the substrate insulating layer 200-1 may be the display panel 100 (see reference). Figure 2 A component of the display panel 100. Additionally or alternatively, the substrate insulating layer 200-1 may be formed on a separate substrate layer, and the substrate layer may be bonded to the display panel 100 (see reference 100) by an adhesive member. Figure 2 ).

[0083] The input sensor 200 can obtain information about external inputs based on the change in capacitance between the first sensing electrode 210 and the second sensing electrode 220.

[0084] Each of the first sensing electrodes 210 may extend in a first direction DR1, and the first sensing electrodes 210 may be arranged in a second direction DR2. The first sensing electrode 210 may include a first sensing pattern 211 and a first connection pattern 212. The first connection pattern 212 may electrically connect two adjacent first sensing patterns 211.

[0085] Each of the second sensing electrodes 220 may extend in the second direction DR2, and the second sensing electrodes 220 may be arranged in the first direction DR1. The second sensing electrode 220 may include a second sensing pattern 221 and a second connecting pattern 222. The second connecting pattern 222 may electrically connect two adjacent second sensing patterns 221.

[0086] Sensing lines 231 and 232 may include a first sensing line 231 and a second sensing line 232. The first sensing line 231 may be electrically connected to the first sensing electrode 210 and is connected to the first sensing electrode 210. The second sensing line 232 may be electrically connected to the second sensing electrode 220 and is connected to the second sensing electrode 220.

[0087] The sensing pad 240 may include a first sensing pad 241 and a second sensing pad 242. The first sensing pad 241 may be connected to a first sensing line 231. The second sensing pad 242 may be connected to a second sensing line 232.

[0088] Figure 5 This is a plan view showing an antenna 300 according to an embodiment of the present disclosure.

[0089] Reference Figure 5 The antenna 300 may include a substrate layer 300-1, a radiating part 310, a connecting part 320, and a pad part 330.

[0090] The substrate layer 300-1 may be referred to as a "dielectric layer". The substrate layer 300-1 may include an insulating material having a predetermined dielectric constant. The substrate layer 300-1 may include a light-transmitting film. For example, the substrate layer 300-1 may include at least one of acrylic resins, methacrylic resins, polyisoprene, vinyl resins, epoxy resins, urethane resins, cellulose resins, siloxane resins, polyamide resins, and perylene resins, but the substrate layer 300-1 is not limited thereto.

[0091] The radiating part 310, the connecting part 320, and the pad part 330 may be disposed on the substrate layer 300-1. The antenna 300 may also include a grounding electrode disposed below the substrate layer 300-1.

[0092] At least a portion of the antenna 300 can be configured to be connected to the display panel 100 (see reference). Figure 3 The effective area 100A of the antenna 300 is superimposed on it. For example, the radiating portion 310 of the antenna 300 can be configured to overlap with the display panel 100 (see reference 100). Figure 3 The effective area 100A is superimposed on the radiating section 310. The radiating section 310 may have a grid structure, allowing image transmission through the effective area 100A to pass through the radiating section 310. The grid structure can mean a structure in which multiple openings are defined through a predetermined layer. Furthermore, the grid structure can be referred to as a lattice structure. The radiating section 310 can be changed into various shapes in the area superimposed on the effective area 100A, and the design freedom of the radiating section 310 can be increased.

[0093] Display panel 100 (reference) Figure 3 The effective area 100A can be the same size as the input sensor 200 (refer to...). Figure 4 The size of the sensing area 200A is substantially the same as that of the input sensor 200. In this case, the radiating part 310 can be the same as that of the input sensor 200 (see reference). Figure 4 The sensing area 200A is superimposed.

[0094] and Figure 5 Different, input sensor 200 (reference) Figure 4The size of the sensing area 200A can be smaller than that of the display panel 100 (see reference). Figure 3 The effective area of ​​the sensor is 100A. In this case, the input sensor 200 (refer to...) Figure 4 The sensing area 200A can be defined as a region that does not overlap with the radiating part 310. For example, the first sensing electrode 210 and the second sensing electrode 220 can be omitted from the region in which the radiating part 310 is disposed (see reference). Figure 4 () part.

[0095] The connecting portion 320 may be made of the same material as the radiating portion 310 and may be formed using the same process as the radiating portion 310. The connecting portion 320 may extend from the radiating portion 310 to the peripheral region 300N. The peripheral region 300N may mean a region that does not overlap with the effective region 100A.

[0096] The radiating portion 310 and the connecting portion 320 may include conductive materials. For example, the radiating portion 310 and the connecting portion 320 may include carbon nanotubes, metallic materials, metal alloys, or composites thereof, and may have a single-layer structure or a multi-layer structure. For example, the metallic material may be silver (Ag), copper (Cu), aluminum (Al), gold (Au), or platinum (Pt); however, the metallic material is not limited to or is not limited thereto.

[0097] The pad portion 330 can be electrically connected to the connecting portion 320. The pad portion 330 can be disposed in the peripheral region 300N. The pad portion 330 can be electrically connected to the circuit board. The radiating portion 310 can be electrically connected to the circuit board through the connecting portion 320 and the pad portion 330.

[0098] Antenna 300 may also include a dummy pattern configured to overlap with the effective region 100A. The dummy pattern may be spaced apart from the radiator 310 and may have the same structure as the radiator 310. For example, both the dummy pattern and the radiator 310 may have a grid structure. Since the dummy pattern is disposed in the region where the radiator 310 is not disposed, the difference in reflectivity between the region where the radiator 310 is disposed and the region where the radiator 310 is not disposed can be reduced. Therefore, the radiator 310 can be prevented from being seen from the outside.

[0099] Figure 6 This is a cross-sectional view showing an electronic device 1000a according to an embodiment of the present disclosure. Figure 7 This is a plan view showing an input sensor 200a according to an embodiment of the present disclosure.

[0100] Reference Figure 6 and Figure 7 The electronic device 1000a may include a display panel 100, an input sensor 200a, and a window 400.

[0101] The input sensor 200a may include a sensing region 200Aa and an antenna region 300A. The sensing region 200Aa may be the region in which external inputs are sensed. A first sensing electrode 210 and a second sensing electrode 220 may be disposed in the sensing region 200Aa. The antenna region 300A may be the region in which radio frequency signals are transmitted, received, or both transmitted and received.

[0102] Antenna 300a may include a radiating portion 310, a connecting portion 320, and a pad portion 330. The radiating portion 310 may be disposed in antenna region 300A, the connecting portion 320 may extend from the radiating portion 310 to peripheral region 200N, and the pad portion 330 may be disposed in peripheral region 200N. For example, antenna 300a may be mounted in input sensor 200a.

[0103] Some portions of the first sensing electrode 210 and the second sensing electrode 220 can be omitted, and the radiating portion 310 can be disposed in the region from which some portions of the first sensing electrode 210 and the second sensing electrode 220 are omitted. Figure 7 In this embodiment, some portions of the first sensing pattern 211 are removed, and the radiating portion 310 is disposed in the region from which some portions of the first sensing pattern 211 have been removed. However, this embodiment is not limited to this or is not limited thereto.

[0104] The radiating portion 310 can be disposed on the same layer as the sensing patterns 211 and 221. For example, the radiating portion 310 and the sensing patterns 211 and 221 can be disposed on the substrate insulating layer 200-1.

[0105] The radiating portion 310 may include the same material as the first sensing pattern 211 and the second sensing pattern 221, and may be formed by the same process as that used for the first sensing pattern 211 and the second sensing pattern 221. For example, the first sensing pattern 211, the second sensing pattern 221, and the radiating portion 310 may include carbon nanotubes, metallic materials, metal alloys, or composites thereof, and may have a single-layer or multi-layer structure. For example, the first sensing pattern 211, the second sensing pattern 221, and the radiating portion 310 may have a multi-layer structure in which titanium (Ti), aluminum (Al), and titanium (Ti) are sequentially stacked.

[0106] The radiating portion 310 may include a material different from that of the first sensing pattern 211 and the second sensing pattern 221, and may be formed by a separate process. For example, the first sensing pattern 211 and the second sensing pattern 221 may have a multilayer structure in which titanium (Ti), aluminum (Al), and titanium (Ti) are sequentially stacked, and the radiating portion 310 may include carbon nanotubes, metallic materials, metal alloys, or composites thereof, and may have a single-layer structure or a multilayer structure. For example, the metallic material may be silver (Ag), copper (Cu), aluminum (Al), gold (Au), or platinum (Pt); however, the metallic material is not limited to or is not restricted by these.

[0107] Figure 7 The diagram illustrates a structure in which multiple antennas 300a are arranged and spaced apart from each other along a second direction DR2. The antenna region 300A, where the antennas 300a are located, can be compared with a reference... Figure 1 The second display surface described is 1000BA (refer to) Figure 1 Stacked.

[0108] Figure 8 It is shown Figure 7 The enlarged plan view of part AA' shown.

[0109] Reference Figure 7 and Figure 8 The input sensor 200a may also include a dummy electrode 250.

[0110] A sensing region 200Aa, an antenna region 300A, a dummy region 200D, and a peripheral region 200N can be defined within an input sensor 200a. A first sensing electrode 210 and a second sensing electrode 220 are disposed within the sensing region 200Aa. An antenna 300a is disposed within the antenna region 300A. A dummy electrode 250 is disposed within the dummy region 200D. The sensing region 200Aa, the antenna region 300A, and the dummy region 200D are surrounded by the peripheral region 200N.

[0111] A dummy electrode 250 can be disposed in a dummy region 200D defined between the sensing region 200Aa and the antenna region 300A. When the dummy electrode 250 is not disposed, the reflectivity and transmittance of the dummy region 200D will differ from those of the sensing region 200Aa and the antenna region 300A. However, due to the presence of the dummy electrode 250, the differences in reflectivity and transmittance can be reduced. As a result, certain boundaries (e.g., the boundary between the antenna 300a and the second sensing pattern 221 or the boundary between the antenna 300a and the second connection pattern 222) can be prevented from being seen.

[0112] The sensing area 200Aa, antenna area 300A, and dummy area 200D can be connected to the display panel 100 (see reference). Figure 3 ) effective area 100A (refer to) Figure 3 ) stacked. Therefore, the size of the sensing area 200Aa can be smaller than the effective area 100A (refer to Figure 3 (size).

[0113] Figure 9 It is shown Figure 7 The enlarged plan view of part AA' shown.

[0114] Reference Figure 7 and Figure 9 The sensing region 200Ab, the antenna region 300A, and the peripheral region 200N can be defined within the input sensor 200a. A first sensing electrode 210 and a second sensing electrode 220 are disposed within the sensing region 200Ab. The antenna 300a is disposed within the antenna region 300A. The sensing region 200Ab and the antenna region 300A are surrounded by the peripheral region 200N.

[0115] Sensing pattern 211a in the first sensing pattern 211 and the second sensing pattern 221 can be patterned to correspond to the shape of antenna 300a. For example, sensing pattern 211a can be patterned to be spaced apart from antenna 300a by a predetermined distance. In this case, the size of the sensing region 200Ab that senses external input can be larger than the reference area. Figure 8 The dimensions of the sensing region 200Aa in the described embodiment. Furthermore, since the sensing pattern 211a is disposed around the antenna region 300A, the phenomenon where the antenna 300a is visible due to differences in reflectivity and transmittance can be prevented.

[0116] The sensing area 200Ab and the antenna area 300A can be connected to the display panel 100 (see reference). Figure 3 ) effective area 100A (refer to) Figure 3 ) stacked. Therefore, the size of the sensing area 200Ab can be smaller than the effective area 100A (refer to Figure 3 (size).

[0117] Figure 10A , Figure 10B and Figure 10C This is a view showing the grid structure. Figure 11 This is a graph showing the characteristic impedance based on the width of the grid structure.

[0118] Reference Figure 10A , Figure 10B and Figure 10CThe diagram illustrates a first mesh structure M1a, a second mesh structure M1b, and a third mesh structure M1c. The first mesh structure M1a, the second mesh structure M1b, and the third mesh structure M1c may have the same structure. The expression "the same structure" can mean that the openings OP defined in each of the first mesh structure M1a, the second mesh structure M1b, and the third mesh structure M1c have the same shape and size.

[0119] Each opening OP can be either a rhomboid or a diamond shape. Figure 10A , Figure 10B and Figure 10C In this context, the diagonals of each opening OP have the same length; however, this disclosure is not limited to or restricted by this. For example, the diagonals of each opening OP may have different lengths. Furthermore, this can be considered in the context of display panel 100 (see reference 100). Figure 3 The shape of each opening OP can be changed by the pixel area of ​​the opening. For example, each opening OP can have a rectangular shape, a circular shape, or a polygonal shape.

[0120] The first grid structure M1a, the second grid structure M1b, and the third grid structure M1c can have different widths Wgrid. For example, when the first grid structure M1a has a width Wgrid of about 50 micrometers, the second grid structure M1b can have a width Wgrid of about 100 micrometers, and the third grid structure M1c can have a width Wgrid of about 150 micrometers.

[0121] Reference Figure 11 It was observed that, under the same length condition, the characteristic impedance of the grid structure gradually decreases as the width Wgrid increases. Increasing the width Wgrid could mean adding an opening OP in a direction substantially parallel to the width Wgrid.

[0122] Impedance refers to the reaction of a circuit element to a current when a voltage is applied. In some cases, impedance can depend on the frequency of a sinusoidal voltage. In others, impedance has both amplitude and phase. Characteristic impedance or surge impedance (Z0) refers to the ratio of voltage to current in a single wave propagating along a line (i.e., in the absence of reflection in the other direction).

[0123] The width Wgrid can be substantially parallel to the second direction DR2, and the length of the grid structure can be meant as the length in the direction that intersects the width Wgrid at an angle of approximately 90 degrees (i.e., the length in the first direction DR1). The first direction DR1 can be referred to as the "propagation direction", and the second direction DR2 can be referred to as the "lateral direction".

[0124] Figure 12This is an enlarged plan view of an antenna according to an embodiment of the present disclosure.

[0125] exist Figure 12 The image shows an enlarged view of the radiating portion 310 and the connecting portion 320. The radiating portion 310 may be referred to as the "first pattern portion" 310. The connecting portion 320 may include a second pattern portion 321 and a third pattern portion 322.

[0126] The first pattern portion 310, the second pattern portion 321, and the third pattern portion 322 may be arranged sequentially in the first direction DR1. The second pattern portion 321 may be positioned adjacent to the first pattern portion 310. The third pattern portion 322 may be positioned adjacent to the second pattern portion 321. The first pattern portion 310, the second pattern portion 321, and the third pattern portion 322 may comprise the same material and may be formed by the same process. The first pattern portion 310, the second pattern portion 321, and the third pattern portion 322 may be connected to each other to have an integral shape.

[0127] The second patterned portion 321 may be electrically connected to or in contact with the first patterned portion 310. The second patterned portion 321 may extend from the first patterned portion 310. The third patterned portion 322 may be electrically connected to or in contact with the second patterned portion 321. The third patterned portion 322 may extend from the second patterned portion 321. The second patterned portion 321 may be disposed between the first patterned portion 310 and the third patterned portion 322.

[0128] The first patterned portion 310 may have a first characteristic impedance and a first grid structure, the second patterned portion 321 may have a second characteristic impedance and a second grid structure, and the third patterned portion 322 may have a third characteristic impedance and a third grid structure.

[0129] A first opening OP1 having a first size can be defined in a first grid structure, a second opening OP2 having a second size can be defined in a second grid structure, and a third opening OP3 having a third size can be defined in a third grid structure. In one embodiment, the first, second, and third sizes can be substantially the same as each other. For example, the first, second, and third grid structures can have substantially the same grid pattern.

[0130] The first characteristic impedance of the first patterned section 310, the second characteristic impedance of the second patterned section 321, and the third characteristic impedance of the third patterned section 322 can be different from each other. For example, the second characteristic impedance can have a value between the first and third characteristic impedances. For example, the first characteristic impedance can be greater than the second characteristic impedance, and the second characteristic impedance can be greater than the third characteristic impedance. For example, since the characteristic impedances can be gradually changed through the second patterned section 321 and the third patterned section 322, the reflection loss caused by the change in characteristic impedance can be reduced. When the reflection loss is reduced, the antenna efficiency can be increased. Antenna efficiency can be referred to as "antenna gain".

[0131] For example, the first characteristic impedance can be in the range of about 100 ohms to about 200 ohms, and the third characteristic impedance can be about 50 ohms. The second characteristic impedance can have a value greater than about 50 ohms and less than the first characteristic impedance. For example, when the first characteristic impedance is about 100 ohms, the second characteristic impedance can be about 75 ohms.

[0132] The first pattern portion 310 may have a first width WT1, the second pattern portion 321 may have a second width WT2, and the third pattern portion 322 may have a third width WT3. The first width WT1, the second width WT2, and the third width WT3 may be the widths along the second direction DR2 that intersects the first direction DR1.

[0133] According to embodiments of this disclosure, the characteristic impedance can be controlled by adjusting the first width WT1 of the first patterned portion 310, the second width WT2 of the second patterned portion 321, and the third width WT3 of the third patterned portion 322. For example, the first patterned portion 310 may correspond to a radiating portion that transmits, receives, or both transmits and receives radio frequency signals, and may have a first width WT1 that is the largest of the first width WT1, second width WT2, and third width WT3. For example, the second width WT2 and the third width WT3 may be smaller than the first width WT1. The second patterned portion 321 may be a quarter-wavelength converter, and the third patterned portion 322 may be a transmission line.

[0134] The number of first openings OP1 in the first pattern section 310 arranged along the second direction DR2 (hereinafter referred to as the "first number") can be greater than the number of second openings OP2 in the second pattern section 321 arranged along the second direction DR2 (hereinafter referred to as the "second number"). The number of third openings OP3 in the third pattern section 322 arranged along the second direction DR2 can be greater than the second number and less than the first number.

[0135] exist Figure 12In this design, the widths of the line patterns in the first pattern section 310, the second pattern section 321, and the third pattern section 322 can be the same. For example, the line patterns can define a first opening OP1, a second opening OP2, and a third opening OP3, and... Figure 12 The lines are indicated by solid lines. Each line pattern can be approximately 1 micrometer wide. However, the width of the line pattern is not limited to this or is not limited thereto. Furthermore, according to embodiments of this disclosure, the widths of the line patterns can be different from each other.

[0136] according to Figure 10A , Figure 10B and Figure 10C as well as Figure 11 It was observed that, under the same length conditions, the characteristic impedance decreases as the width Wgrid of the grid structure increases. Therefore, since the second width WT2 of the second patterned portion 321 is designed to be smaller than the third width WT3 of the third patterned portion 322, the characteristic impedance of the second patterned portion 321 can be designed to be greater than the characteristic impedance of the third patterned portion 322. Because the characteristic impedance can be gradually changed, the reflection loss can be reduced. Therefore, the antenna efficiency can be increased.

[0137] Therefore, according to some embodiments, the antenna may include: a first patterned portion having a first characteristic impedance; a second patterned portion adjacent to the first patterned portion and having a second characteristic impedance; and a third patterned portion configured to be adjacent to the second patterned portion and having a third characteristic impedance, wherein the second characteristic impedance is between the first characteristic impedance and the third characteristic impedance. In some cases, the first patterned portion includes a first mesh structure, the second patterned portion includes a second mesh structure, and the third patterned portion includes a third mesh structure.

[0138] Figure 13A , Figure 13B , Figure 13C and Figure 13D This is a view showing the grid structure. Figure 14 This is a graph showing the characteristic impedance based on the width of the grid structure.

[0139] Reference Figure 13A , Figure 13B , Figure 13C and Figure 13DThe diagram illustrates a first grid structure M2a, a second grid structure M2b, a third grid structure M2c, and a fourth grid structure M2d. These grid structures can have different structures from each other. Structural differences can mean that at least one of the shapes and dimensions of the first opening OPxa, the second opening OPxb, the third opening OPxc, and the fourth opening OPxd, respectively defined in the first grid structure M2a, the second grid structure M2b, the third grid structure M2c, and the fourth grid structure M2d, differs from the others.

[0140] Each of the first opening OPxa, the second opening OPxb, the third opening OPxc, and the fourth opening OPxd can be square, rhomboid, or diamond-shaped. The lengths of the diagonals of the first opening OPxa, the second opening OPxb, the third opening OPxc, and the fourth opening OPxd can be different from each other. For example, when the length of the diagonal of the first opening OPxa of the first grid structure M2a is about 50 micrometers, the length of the diagonal of the second opening OPxb of the second grid structure M2b is about 100 micrometers, the length of the diagonal of the third opening OPxc of the third grid structure M2c is about 150 micrometers, and the length of the diagonal of the fourth opening OPxd of the fourth grid structure M2d is about 200 micrometers.

[0141] Reference Figure 14 The characteristic impedance decreases as the length of the diagonal of the first opening OPxa, the second opening OPxb, the third opening OPxc, and the fourth opening OPxd increases. Furthermore, in Figure 11 In the study, it was observed that the characteristic impedance decreases as the width Wgrid increases. Increasing the width Wgrid can mean that the impedance is substantially parallel to the width Wgrid (refer to...). Figures 10A to 10C An opening is added in the direction of ). For example, when a first opening OPxa is added to the first mesh structure M2a, the resulting mesh structure width Wgrid can be the same as the width Wgrid of the second mesh structure M2b.

[0142] Figure 15 This is an enlarged plan view of an antenna according to an embodiment of the present disclosure.

[0143] exist Figure 15 The image shows an enlarged view of the radiating portion 310 and the connecting portion 320a. The radiating portion 310 may be referred to as the "first pattern portion" 310. The connecting portion 320a may include a second pattern portion 321a, a third pattern portion 322a, and a fourth pattern portion 323a. Figure 15The diagram shows a structure in which the connecting portion 320a is divided into three patterned portions, but it is not limited to this. The connecting portion 320a may be divided into two patterned portions or into four or more patterned portions.

[0144] The first pattern part 310, the second pattern part 321a, the third pattern part 322a, and the fourth pattern part 323a can be arranged sequentially in the first direction DR1. The first pattern part 310, the second pattern part 321a, the third pattern part 322a, and the fourth pattern part 323a can be connected to each other to have an integral shape.

[0145] The first pattern portion 310 may have a first width WT1a. The second pattern portion 321a may have a second width WT2a. The third pattern portion 322a may have a third width WT3a. The fourth pattern portion 323a may have a fourth width WT4a. The first width WT1a, the second width WT2a, the third width WT3a, and the fourth width WT4a may be widths along a second direction DR2 that intersects the first direction DR1.

[0146] The first pattern section 310 may correspond to a radiating section that transmits, receives, or both transmits and receives radio frequency signals, and may have a first width WT1a, which may be the largest width. The second width WT2a, the third width WT3a, and the fourth width WT4a may be smaller than the first width WT1a. Furthermore, the second width WT2a, the third width WT3a, and the fourth width WT4a may be the same as each other.

[0147] The first pattern section 310 may have a first characteristic impedance and a first grid structure. The second pattern section 321a may have a second characteristic impedance different from the first characteristic impedance and a second grid structure different from the first grid structure. The third pattern section 322a may have a third characteristic impedance different from the second characteristic impedance and a third grid structure different from the second grid structure. The fourth pattern section 323a may have a fourth characteristic impedance different from the third characteristic impedance and a fourth grid structure different from the third grid structure.

[0148] For example, the relationship between the first characteristic impedance, the second characteristic impedance, the third characteristic impedance, and the fourth characteristic impedance can satisfy the following relationship: first characteristic impedance > second characteristic impedance > third characteristic impedance > fourth characteristic impedance.

[0149] Since the characteristic impedance gradually changes through the second pattern section 321a, the third pattern section 322a and the fourth pattern section 323a, the reflection loss caused by the change in characteristic impedance can be reduced.

[0150] A first opening OP1a having a first size can be defined in a first patterned portion 310, a second opening OP2a having a second size can be defined in a second patterned portion 321a, a third opening OP3a having a third size can be defined in a third patterned portion 322a, and a fourth opening OP4a having a fourth size can be defined in a fourth patterned portion 323a. The second size of the second opening OP2a, the third size of the third opening OP3a, and the fourth size of the fourth opening OP4a can be different from each other. For example, according to embodiments of this disclosure, the characteristic impedance can be controlled by adjusting the sizes of the first opening OP1a of the first patterned portion 310, the second opening OP2a of the second patterned portion 321a, the third opening OP3a of the third patterned portion 322a, and the fourth opening OP4a of the fourth patterned portion 323a.

[0151] The lengths of the first diagonal W1a and the second diagonal W1b of the first opening OP1a can be the same or different. The lengths of the first diagonal W2a and the second diagonal W2b of the second opening OP2a can be the same or different. The lengths of the first diagonal W3a and the second diagonal W3b of the third opening OP3a can be the same or different. The lengths of the first diagonal W4a and the second diagonal W4b of the fourth opening OP4a can be the same or different.

[0152] The first diagonals W1a, W2a, W3a, and W4a are the diagonals of the first opening OP1a, the second opening OP2a, the third opening OP3a, and the fourth opening OP4a, respectively, and are substantially parallel to the first direction DR1. The second diagonals W1b, W2b, W3b, and W4b are the diagonals of the first opening OP1a, the second opening OP2a, the third opening OP3a, and the fourth opening OP4a, respectively, and are substantially parallel to the second direction DR2.

[0153] In this disclosure, the diagonal of an opening may be referred to as the width of the opening. For example, the first diagonals W1a, W2a, W3a, and W4a may be referred to as the widths of the first opening OP1a, the second opening OP2a, the third opening OP3a, and the fourth opening OP4a, respectively, which are substantially parallel to the first direction DR1. The second diagonals W1b, W2b, W3b, and W4b may be referred to as the widths of the first opening OP1a, the second opening OP2a, the third opening OP3a, and the fourth opening OP4a, respectively, which are substantially parallel to the second direction DR2.

[0154] The first ratio of the first diagonal W1a to the second diagonal W1b of the first opening OP1a can be substantially the same as the second ratio of the first diagonal W2a to the second diagonal W2b of the second opening OP2a, the third ratio of the first diagonal W3a to the second diagonal W3b of the third opening OP3a, and the fourth ratio of the first diagonal W4a to the second diagonal W4b of the fourth opening OP4a. Alternatively or additionally, the second, third, and fourth ratios can be the same as each other, and the first ratio can differ from the second ratio.

[0155] The first diagonals W2a, W3a, and W4a satisfy the following relationship: First diagonal W2a >

[0156] First diagonal W3a > First diagonal W4a.

[0157] The second diagonals W2b, W3b, and W4b can satisfy the following relationship: second diagonal W2b > second diagonal W3b > second diagonal W4b.

[0158] The number of first openings OP1a arranged along the second direction DR2 in the first pattern section 310 (hereinafter referred to as the first number) can be greater than each of the number of second openings OP2a, the number of third openings OP3a, and the number of fourth openings OP4a. The number of second openings OP2a (hereinafter referred to as the second number) can be arranged along the second direction DR2 in the second pattern section 321a. The number of third openings OP3a (hereinafter referred to as the third number) can be arranged along the second direction DR2 in the third pattern section 322a. The number of fourth openings OP4a (hereinafter referred to as the fourth number) can be arranged along the second direction DR2 in the fourth pattern section 323a. The fourth number can be greater than the second and third numbers, and the third number can be greater than the second number.

[0159] Figure 16 This is a view showing the grid structure. Figure 17 It is a graph showing the characteristic impedance based on the width of the line pattern of the grid structure.

[0160] Reference Figure 16 The diagram illustrates a grid structure M3. The grid structure M3 may include a line pattern M3L, and the line pattern M3L may have a predetermined width Tgrid. The line pattern M3L may surround an opening OP and may define the opening OP.

[0161] Figure 17 The variation of characteristic impedance with respect to the width Tgrid of the line pattern M3L based on the grid structure M3 is shown. The characteristic impedance can decrease as the width Tgrid increases.

[0162] Figure 18This is an enlarged plan view of an antenna according to an embodiment of the present disclosure.

[0163] exist Figure 18 The image shows an enlarged view of the radiating portion 310 and the connecting portion 320b. The radiating portion 310 may be referred to as the "first pattern portion" 310. The connecting portion 320b may include a second pattern portion 321b, a third pattern portion 322b, and a fourth pattern portion 323b. Figure 18 The diagram shows a structure in which the connecting portion 320b is divided into three pattern portions; however, the connecting portion 320b may be divided into two pattern portions or four or more pattern portions.

[0164] The first pattern part 310, the second pattern part 321b, the third pattern part 322b, and the fourth pattern part 323b can be arranged sequentially in the first direction DR1. The first pattern part 310, the second pattern part 321b, the third pattern part 322b, and the fourth pattern part 323b can be connected to each other to have an integral shape.

[0165] The first pattern portion 310 may have a first width WT1b, the second pattern portion 321b may have a second width WT2b, the third pattern portion 322b may have a third width WT3b, and the fourth pattern portion 323b may have a fourth width WT4b. The first width WT1b, the second width WT2b, the third width WT3b, and the fourth width WT4b may be widths on a second direction DR2 that intersects the first direction DR1.

[0166] The first pattern section 310 may correspond to a radiating section that transmits, receives, or both transmits and receives radio frequency signals, and may have a first width WT1b, which may be the largest width. Each of the second width WT2b, the third width WT3b, and the fourth width WT4b may be smaller than the first width WT1b. Furthermore, the second width WT2b, the third width WT3b, and the fourth width WT4b may be the same as each other.

[0167] A first opening OP1b having a first size can be defined in a first pattern portion 310, a second opening OP2b having a second size can be defined in a second pattern portion 321b, a third opening OP3b having a third size can be defined in a third pattern portion 322b, and a fourth opening OP4b having a fourth size can be defined in a fourth pattern portion 323b.

[0168] The first pattern portion 310 may include a first line pattern ML1, the second pattern portion 321b may include a second line pattern ML2, the third pattern portion 322b may include a third line pattern ML3, and the fourth pattern portion 323b may include a fourth line pattern ML4.

[0169] The fourth line pattern ML4 has a wider width than the third line pattern ML3, and the width of the third line pattern ML3 can be greater than the width of the second line pattern ML2. Therefore, the characteristic impedance of the fourth pattern portion 323b can be less than the characteristic impedance of the third pattern portion 322b. The characteristic impedance of the third pattern portion 322b can be less than the characteristic impedance of the second pattern portion 321b. Additionally or alternatively, the first pattern portion 310 can correspond to a radiating portion and can have a characteristic impedance greater than that of the second pattern portion 321b.

[0170] According to an embodiment, the connection portion 320b can be divided into predetermined regions, and the thickness of the line pattern within each region can be designed differently. For example, the characteristic impedance can be controlled by adjusting the thickness of the line pattern. In other words, the connection portion 320b can be designed to allow for a gradual change in characteristic impedance. Therefore, reflection loss can be reduced. As a result, antenna efficiency can be increased.

[0171] Figure 19 This is a view showing the grid structure. Figure 20 It is a graph showing the characteristic impedance according to the ratio of the grid structure.

[0172] Reference Figure 19 The diagram illustrates a grid structure M4. An opening OP can be confined within the grid structure M4. The opening OP can be a rhomboid or oblique shape. The characteristic impedance of the grid structure M4 can be varied according to the ratio Rgrid of the first diagonal Wx to the second diagonal Wy of the opening OP.

[0173] The first diagonal Wx can be substantially parallel to the first direction DR1, and the second diagonal Wy can be substantially parallel to the second direction DR2. The ratio Rgrid can correspond to the value obtained by dividing the first diagonal Wx by the second diagonal Wy. The ratio Rgrid can be changed by adjusting the length of the first diagonal Wx, with the length of the second diagonal Wy being fixed.

[0174] Reference Figure 20 The characteristic impedance of the grid structure M4 can increase as the length of the first diagonal Wx increases.

[0175] Figure 21 This is an enlarged plan view of an antenna according to an embodiment of the present disclosure.

[0176] exist Figure 21 The image shows an enlarged view of the radiating portion 310 and the connecting portion 320c. The radiating portion 310 may be referred to as the "first pattern portion" 310. The connecting portion 320c may include a second pattern portion 321c, a third pattern portion 322c, and a fourth pattern portion 323c. Figure 21The diagram shows a structure in which the connecting portion 320c is divided into three pattern portions; however, the connecting portion 320c can be divided into two pattern portions, or it can be divided into four or more pattern portions.

[0177] The first pattern part 310, the second pattern part 321c, the third pattern part 322c, and the fourth pattern part 323c can be arranged sequentially in the first direction DR1. The first pattern part 310, the second pattern part 321c, the third pattern part 322c, and the fourth pattern part 323c can be connected to each other to have an integral shape.

[0178] The first pattern portion 310 may have a first width WT1c, the second pattern portion 321c may have a second width WT2c, the third pattern portion 322c may have a third width WT3c, and the fourth pattern portion 323c may have a fourth width WT4c. The first width WT1c, the second width WT2c, the third width WT3c, and the fourth width WT4c may be widths on the second direction DR2 that intersects the first direction DR1.

[0179] The first pattern section 310 may correspond to a radiating section that transmits, receives, or both transmits and receives radio frequency signals, and may have a first width WT1c, which may be the largest width. Each of the second width WT2c, the third width WT3c, and the fourth width WT4c may be smaller than the first width WT1c. Furthermore, the second width WT2c, the third width WT3c, and the fourth width WT4c may be the same as each other.

[0180] A first opening OP1c having a first size can be defined in a first patterned portion 310, a second opening OP2c having a second size can be defined in a second patterned portion 321c, a third opening OP3c having a third size can be defined in a third patterned portion 322c, and a fourth opening OP4c having a fourth size can be defined in a fourth patterned portion 323c. The first size of the first opening OP1c, the second size of the second opening OP2c, the third size of the third opening OP3c, and the fourth size of the fourth opening OP4c can be different from each other. For example, according to embodiments of this disclosure, the characteristic impedance can be controlled by adjusting the sizes of the first opening OP1c of the first patterned portion 310, the second opening OP2c of the second patterned portion 321c, the third opening OP3c of the third patterned portion 322c, and the fourth opening OP4c of the fourth patterned portion 323c.

[0181] The lengths of the first diagonal W1x of the second opening OP2c, the length of the first diagonal W1y of the third opening OP3c, and the length of the first diagonal W1z of the fourth opening OP4c can be different from each other. The first diagonals W1x, W1y, and W1z can be substantially parallel to the first direction DR1. The length of the first diagonal W1x of the second opening OP2c can be greater than the length of the first diagonal W1y of the third opening OP3c, and the length of the first diagonal W1y of the third opening OP3c can be greater than the length of the first diagonal W1z of the fourth opening OP4c.

[0182] The lengths of the diagonals W2 of the second opening OP2c, the third opening OP3c, and the fourth opening OP4c, which are parallel to the second direction DR2, can be the same. Therefore, the number of second openings OP2c in the second pattern section 321c arranged along the second direction DR2, the number of third openings OP3c in the third pattern section 322c arranged along the second direction DR2, and the number of fourth openings OP4c in the fourth pattern section 323c arranged along the second direction DR2 can be the same.

[0183] exist Figure 12 , Figure 15 , Figure 18 and Figure 21 In this embodiment, each of the connecting portions 320, 320a, 320b, and 320c is divided into multiple patterned portions, and the characteristic impedance is controlled by changing the grid structure of the multiple patterned portions. However, this disclosure is not limited thereto or is not limited thereto. For example, Figure 12 , Figure 15 , Figure 18 and Figure 21 Each of the radiating sections 310 can be divided into multiple radiating pattern sections, and the characteristic impedance of each of the radiating pattern sections can be adjusted by changing the grid structure of the radiating pattern sections.

[0184] Although embodiments of this disclosure have been described, it is understood that this disclosure is not limited to these embodiments, but rather that various changes and modifications can be made by those skilled in the art within the spirit and scope of this disclosure as claimed. Therefore, the subject matter disclosed is not limited to any single embodiment described herein, and the scope of the inventive concept will be determined by the claims.

Claims

1. An electronic device, the electronic device comprising: The display panel includes an active area and a peripheral area; as well as An antenna, at least a portion of which is superimposed on the effective region, the antenna comprising: a first patterned portion having a first characteristic impedance and a first grid structure having a first opening; a second patterned portion configured adjacent to the first patterned portion and having a second characteristic impedance different from the first characteristic impedance and a second grid structure having a second opening; and a third patterned portion configured adjacent to the second patterned portion and having a third characteristic impedance and a third grid structure having a third opening, wherein the second characteristic impedance has a value between the first characteristic impedance and the third characteristic impedance. The first patterned portion, the second patterned portion, and the third patterned portion are arranged sequentially in a first direction. Wherein, the first width of the first pattern portion in the second direction intersecting the first direction is greater than the second width of the second pattern portion in the second direction. Wherein, the first width is greater than the third width of the third pattern portion in the second direction, and The dimensions of the first opening and the second opening are different from each other, and the dimension of the third opening is smaller than the dimension of the second opening.

2. The electronic device according to claim 1, wherein, The first number of the first openings arranged along the second direction in the first pattern portion is greater than the second number of the second openings arranged along the second direction in the second pattern portion, and the third number of the third openings arranged along the second direction in the third pattern portion is greater than the second number and less than the first number.

3. The electronic device according to claim 1, wherein, The third width of the third pattern portion in the second direction is equal to the second width.

4. The electronic device according to claim 1, wherein, The width of the second opening in the second direction and the width of the third opening in the second direction are equal to each other.

5. The electronic device according to claim 4, wherein, The width of the second opening in the first direction is greater than the width of the third opening in the first direction.

6. The electronic device of claim 1, wherein the ratio of the width of the first opening in the first direction to its width in the second direction, the ratio of the width of the second opening in the first direction to its width in the second direction, and the ratio of the width of the third opening in the first direction to its width in the second direction are all equal to each other.

7. The electronic device according to claim 6, wherein, The number of the second openings arranged along the second direction in the second pattern portion is less than the number of the third openings arranged along the second direction in the third pattern portion.

8. The electronic device according to claim 1, wherein, The number of the second openings arranged along the second direction in the second pattern portion is equal to the number of the third openings arranged along the second direction in the third pattern portion.

9. The electronic device according to claim 1, wherein, The width of the line pattern in the second pattern section is smaller than the width of the line pattern in the third pattern section.

10. The electronic device according to claim 1, wherein, The first pattern portion includes a first line pattern defining the first opening, the second pattern portion includes a second line pattern defining the second opening, and the third pattern portion includes a third line pattern defining the third opening, wherein the first line pattern, the second line pattern, and the third line pattern have the same minimum width.

11. The electronic device according to claim 1, wherein, The first pattern portion is the radiating portion of the radiating signal, and the first pattern portion is superimposed on the effective region.

12. The electronic device according to claim 1, wherein, Each of the first opening, the second opening, and the third opening has a rhomboid shape, the rhomboid shape having a first diagonal parallel to the first direction and a second diagonal parallel to the second direction.

13. The electronic device according to claim 1, further comprising an input sensor disposed between the display panel and the antenna and having a sensing area, the sensing area having a size equal to or smaller than the size of the effective area.

14. The electronic device according to claim 1, further comprising an input sensor, the input sensor being disposed on the display panel and comprising a substrate insulating layer and a sensing electrode disposed on the substrate insulating layer, wherein, The first patterned portion, the second patterned portion, and the third patterned portion are disposed on the same layer as the sensing electrode.

15. The electronic device according to claim 14, wherein, The input sensor includes: Sensing area, wherein the sensing electrodes are disposed in the sensing area; and An antenna region is provided with a first patterned portion, a second patterned portion, and a third patterned portion, wherein the sensing region and the antenna region overlap with the effective region.

16. The electronic device according to claim 15, wherein, The input sensor further includes a dummy electrode disposed on the substrate insulating layer, wherein the dummy electrode is configured to be adjacent to the antenna region and superimposed on the effective region.

17. The electronic device according to claim 16, wherein, The input sensor also includes a dummy region, the dummy electrode is disposed in the dummy region, and the antenna region, the sensing region and the dummy region overlap with the effective region.

18. The electronic device according to claim 15, wherein, The sensing electrode includes a sensing pattern based on the shape of the first patterned portion.

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