Electronic device

Abstract

The invention relates to an electronic device. The electronic device includes: a display layer; a sensor layer; and a sensor driver for driving the sensor layer. The sensor layer includes: first electrodes each extending in a first direction; second electrodes each extending in a second direction; and auxiliary electrodes each extending in the first direction and insulated from the second electrode. The sensor driver operates in a first mode for sensing a touch or a second mode for sensing an external input device, and the second mode includes a charging mode and a sensing mode. In a first mode, the sensor driver electrically connects the first and second ends of each of the second electrodes to each other, and transmits a drive signal to each of the second electrodes. In a sensing mode, the sensor driver receives a first sensing signal through the second electrode.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to and the benefit of Korean Patent Application No. 10-2024-0021285, filed on February 14, 2024, and Korean Patent Application No. 10-2024-0099435, filed on July 26, 2024, in the Korean Intellectual Property Office, the disclosures of all of these Korean patent applications are incorporated herein by reference in their entirety. Technical Field

[0003] Aspects of embodiments of the present disclosure are directed to an electronic device capable of sensing an input through a pen. Background Art

[0004] Multimedia electronic devices such as televisions (TVs), mobile phones, tablet computers, laptop computers, navigation systems, or game consoles include display devices for displaying images. In addition to general input devices such as buttons, keyboards, or mice, electronic devices may also include a sensor layer (e.g., input sensor) that can provide a touch-based input method (which allows a user to easily and intuitively input information or commands). The sensor layer can sense the user's touch or pressure. Recently, for users who are accustomed to inputting information using writing tools, or for specific applications (e.g., applications for drawing or painting), there is an increasing demand for more sophisticated touch input using a pen.

[0005] The above information disclosed in this Background section is for enhancement of understanding of the background of the present disclosure and therefore it may contain information that does not constitute prior art. Summary of the Invention

[0006] One or more embodiments of the present disclosure may relate to an electronic device capable of sensing an input through a pen.

[0007] According to one or more embodiments of the present disclosure, an electronic device includes: a display layer; a sensor layer on the display layer; and a sensor driver configured to drive the sensor layer. The sensor layer includes: a plurality of first electrodes, each extending in a first direction; a plurality of second electrodes, each extending in a second direction intersecting the first direction; and a plurality of auxiliary electrodes, each extending in the first direction and insulated from the plurality of second electrodes. The sensor driver is configured to operate in a first mode for sensing touch or a second mode for sensing an external input device, and the second mode includes a charging mode and a sensing mode. In the first mode, the sensor driver is configured to electrically connect the first end and the second end of each of the plurality of second electrodes to each other, and transmit a driving signal to each of the plurality of second electrodes. In the sensing mode, the sensor driver is configured to receive a first sensing signal through the second electrode.

[0008] In an embodiment, each of the plurality of auxiliary electrodes may include at least one pattern electrode, and each of the plurality of first electrodes may surround the pattern electrode of a corresponding auxiliary electrode among the plurality of auxiliary electrodes in a plan view.

[0009] In an embodiment, an area of each of the plurality of first electrodes may be smaller than an area of each of the plurality of second electrodes.

[0010] In an embodiment, in a plan view, a length of each of the plurality of first electrodes in the first direction may be smaller than a length of each of the plurality of second electrodes in the second direction.

[0011] In an embodiment, a plurality of auxiliary electrodes may be electrically connected to each other.

[0012] In an embodiment, the sensor driver may be configured to directly receive the current of the first sensing signal in the sensing mode, and the sensor driver may be configured to receive the second sensing signal transmitted by capacitive coupling between the plurality of first electrodes and the plurality of auxiliary electrodes in the sensing mode.

[0013] In an embodiment, the intensity of the first sensing signal may be greater than the intensity of the second sensing signal.

[0014] In an embodiment, the sensor driver may include: a driving portion configured to generate a driving signal and a charging signal; a sensing circuit including an analog front end; a voltage providing circuit configured to provide a voltage having a voltage level; a first pad portion electrically connected to the first end; a second pad portion electrically connected to the second end; a first switch connecting the first pad portion to the voltage providing circuit or connecting the first pad portion to the second pad portion; and a second switch connecting the second pad portion to the driving portion or connecting the second pad portion to the sensing circuit.

[0015] In an embodiment, the sensing circuit may be configured to operate in a single-ended mode.

[0016] In an embodiment, the sensing circuit may be configured to operate in a differential mode.

[0017] In an embodiment, in the first mode, the first switch may be configured to be connected to the first pad portion and the second pad portion, and the second switch may be configured to be connected to the second pad portion and the driving portion.

[0018] In an embodiment, in the charging mode, the sensor driver may be configured to transmit a first charging signal to one of the plurality of auxiliary electrodes and transmit a second charging signal to another auxiliary electrode of the plurality of auxiliary electrodes.

[0019] In an embodiment, the phase of the first charging signal may be opposite to the phase of the second charging signal.

[0020] In an embodiment, during the charging mode, the plurality of second electrodes may be configured to float.

[0021] In an embodiment, one auxiliary electrode among the plurality of auxiliary electrodes and another auxiliary electrode among the plurality of auxiliary electrodes may be spaced apart from each other with at least one of the other auxiliary electrodes among the plurality of auxiliary electrodes located therebetween.

[0022] In an embodiment, in a charging mode, the first switch may be configured to be connected to the first pad portion and the voltage supply circuit, the second switch may be configured to be connected to the second pad portion and the driving portion, the first charging signal may be configured to be transmitted to one second electrode among the plurality of second electrodes, and the second charging signal may be configured to be transmitted to another second electrode among the plurality of second electrodes.

[0023] In an embodiment, the phase of the first charging signal may be opposite to the phase of the second charging signal.

[0024] In an embodiment, one second electrode among the plurality of second electrodes and another second electrode among the plurality of second electrodes may be spaced apart from each other with at least one of the other second electrodes among the plurality of second electrodes located therebetween.

[0025] In an embodiment, the sensor layer may include an active area and a peripheral area adjacent to the active area. A plurality of first electrodes, a plurality of second electrodes, and a plurality of auxiliary electrodes may be located in the active area. The sensor layer may also include a plurality of sensing lines located in the peripheral area and respectively connected to the plurality of second electrodes.

[0026] In an embodiment, in a charging mode, a first distance in a first direction between one of the plurality of second electrodes and another of the plurality of second electrodes may be greater than a second distance in a second direction between one of the plurality of sensing lines connected to the one of the plurality of second electrodes and another of the plurality of sensing lines connected to the another of the plurality of second electrodes.

[0027] According to one or more embodiments of the present disclosure, an electronic device includes: a display layer; a sensor layer on the display layer; and a sensor driver configured to drive the sensor layer. The sensor layer includes: a plurality of first electrodes, each extending in a first direction; a plurality of second electrodes, each extending in a second direction intersecting the first direction; and a plurality of auxiliary electrodes, each extending in the first direction and insulated from the plurality of second electrodes. The sensor driver is configured to operate in a charging mode or a sensing mode. In the charging mode, the sensor driver is configured to transmit a first charging signal to one of the plurality of auxiliary electrodes, and to transmit a second charging signal to another of the plurality of auxiliary electrodes. In the sensing mode, the sensor driver is configured to receive current of the first sensing signal directly from the plurality of second electrodes, and in the sensing mode, the sensor driver is configured to receive a second sensing signal transmitted by capacitive coupling between the plurality of first electrodes and the plurality of auxiliary electrodes.

[0028] In an embodiment, each of the plurality of auxiliary electrodes may include at least one pattern electrode, and each of the plurality of first electrodes may surround the pattern electrode of a corresponding auxiliary electrode among the plurality of auxiliary electrodes in a plan view.

[0029] In an embodiment, an area of each of the plurality of first electrodes may be smaller than an area of each of the plurality of second electrodes.

[0030] In an embodiment, in a plan view, a length of each of the plurality of first electrodes in the first direction may be smaller than a length of each of the plurality of second electrodes in the second direction.

[0031] In an embodiment, a plurality of auxiliary electrodes may be electrically connected to each other.

[0032] In an embodiment, the intensity of the first sensing signal may be greater than the intensity of the second sensing signal.

[0033] In an embodiment, the phase of the first charging signal may be opposite to the phase of the second charging signal.

[0034] In an embodiment, during the charging mode, the plurality of second electrodes may be configured to float.

[0035] However, the present disclosure is not limited to the above aspects and features, and the above and additional aspects and features will be set forth in part in the following detailed description with reference to the accompanying drawings and in part will be obvious therefrom, or may be learned by practicing one or more of the presented embodiments of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The above and other aspects and features of the present disclosure will be more clearly understood from the following detailed description of exemplary, non-limiting embodiments with reference to the accompanying drawings.

[0037] Figure 1A is a perspective view of an electronic device according to an embodiment of the present disclosure.

[0038] Figure 1B is a rear perspective view of an electronic device according to an embodiment of the present disclosure.

[0039] Figure 2 is a perspective view of an electronic device according to an embodiment of the present disclosure.

[0040] Figure 3 is a perspective view of an electronic device according to an embodiment of the present disclosure.

[0041] Figure 4 is a schematic cross-sectional view of a display panel according to an embodiment of the present disclosure.

[0042] Figure 5 is a diagram illustrating an operation of an electronic device according to an embodiment of the present disclosure.

[0043] Figure 6 is a cross-sectional view of a display panel according to an embodiment of the present disclosure.

[0044] Figure 7 is a plan view of a sensor layer according to an embodiment of the present disclosure.

[0045] Figure 8 is an enlarged plan view of a sensing unit according to an embodiment of the present disclosure.

[0046] Figure 9A is a plan view illustrating a first conductive layer of a sensing unit according to an embodiment of the present disclosure.

[0047] Figure 9B is a plan view illustrating a second conductive layer of a sensing unit according to an embodiment of the present disclosure.

[0048] Figure 9C According to the embodiment of the present disclosure Figure 9A and Figure 9B A cross-sectional view of the sensor layer taken along line II' in each of FIG.

[0049] Figure 10A is a plan view illustrating a first conductive layer of a sensing unit according to an embodiment of the present disclosure.

[0050] Figure 10B is a plan view illustrating a second conductive layer of a sensing unit according to an embodiment of the present disclosure.

[0051] Figure 10C According to the embodiment of the present disclosure Figure 10A and Figure 10BA cross-sectional view of the sensor layer taken along line II-II' in each of FIG.

[0052] Figure 11 is a diagram illustrating an operation of a sensor driving unit according to an embodiment of the present disclosure.

[0053] Figure 12 is a diagram illustrating an operation of a sensor driving unit according to an embodiment of the present disclosure.

[0054] Figure 13 A first mode of a sensor layer and a sensor driving unit according to an embodiment of the present disclosure is shown.

[0055] Figure 14A A first mode of a sensor layer and a sensor driving unit according to an embodiment of the present disclosure is shown.

[0056] Figure 14B A first mode of a sensor layer and a sensor driving unit according to an embodiment of the present disclosure is shown.

[0057] Figure 15 A second mode of the sensor layer and the sensor driving unit according to an embodiment of the present disclosure is shown.

[0058] Figure 16 A graph showing waveforms of a first signal and a second signal according to an embodiment of the present disclosure.

[0059] Figure 17 A second mode of the sensor layer and the sensor driving unit according to an embodiment of the present disclosure is shown.

[0060] Figure 18 A second mode of the sensor layer and the sensor driving unit according to an embodiment of the present disclosure is shown.

[0061] Figure 19A is a graph showing current sensed from the first channel.

[0062] Figure 19B is a graph showing currents obtained from the differential pair of the first channel.

[0063] Figure 20 A second mode of the sensor layer and the sensor driving unit according to an embodiment of the present disclosure is shown.

[0064] Figure 21A is a graph showing the current sensed from the second channel.

[0065] Figure 21B is a graph showing currents obtained from the differential pair of the second channel.

[0066] Figure 22is a plan view illustrating a sensor layer according to an embodiment of the present disclosure.

[0067] Figure 23 A second mode of the sensor layer and the sensor driving unit according to an embodiment of the present disclosure is shown.

[0068] Figure 24 A second mode of the sensor layer and the sensor driving unit according to an embodiment of the present disclosure is shown.

[0069] Figure 25 A second mode of the sensor layer and the sensor driving unit according to an embodiment of the present disclosure is shown. DETAILED DESCRIPTION

[0070] Hereinafter, embodiments will be described in more detail with reference to the accompanying drawings, in which the same reference numerals represent the same elements throughout. However, the present disclosure can be implemented in various different forms and should not be construed as being limited to the embodiments illustrated herein. On the contrary, these embodiments are provided as examples so that the present disclosure will be thorough and complete, and will fully convey the aspects and features of the present disclosure to those skilled in the art. Therefore, processes, elements and techniques that are not necessary for a complete understanding of the aspects and features of the present disclosure by those of ordinary skill in the art may not be described. Unless otherwise noted, throughout the drawings and written description, the same reference numerals represent the same elements, and therefore, redundant descriptions thereof may not be repeated.

[0071] When a specific embodiment can be implemented differently, the specific process order may be different from the described order. For example, two consecutively described processes may be performed simultaneously or substantially simultaneously, or may be performed in the reverse order of the described order.

[0072] Furthermore, as will be understood by one of ordinary skill in the art, considering the present disclosure as a whole, each suitable feature of the various embodiments of the present disclosure may be partially or fully combined with one another, and may technically interact, and may operate in various suitable manners, and each embodiment may be implemented independently of one another or in combination with one another in any suitable manner, unless otherwise stated or implied.

[0073] In the accompanying drawings, for clarity, the relative sizes, thicknesses and proportions of elements, layers and regions may be exaggerated and / or simplified. For ease of explanation, spatial relative terms such as "below", "below", "bottom", "below", "above" and "top" may be used herein to describe the relationship between an element or feature and another (some) element or feature as shown in the figure. It will be understood that, in addition to the orientations depicted in the accompanying drawings, spatial relative terms are intended to include different orientations of the device in use or operation. For example, if the device in the accompanying drawings is flipped, the element described as being "below" or "below" or "below" of other elements or features will then be oriented "above" other elements or features. Therefore, the exemplary terms "below" and "below" can include both above and below orientations. The device can be oriented additionally (e.g., rotated 90 degrees or in other orientations), and the spatial relative descriptors used herein should be interpreted accordingly.

[0074] Furthermore, it is contemplated that the shapes shown in the drawings may vary in practice due to, for example, tolerances and / or manufacturing techniques. Therefore, the embodiments of the present disclosure should not be construed as limited to the specific shapes shown in the drawings and should be interpreted in light of variations in shape that may occur, for example, due to manufacturing. Thus, the shapes shown in the drawings may not depict the actual shape of regions of a device, and the present disclosure is not limited thereto.

[0075] In the drawings, the first direction DR1, the second direction DR2, and the third direction DR3 are not limited to the three axes of the rectangular coordinate system and can be interpreted in a broader sense. For example, the first direction DR1, the second direction DR2, and the third direction DR3 can be perpendicular or substantially perpendicular to each other, or can represent different directions that are not perpendicular to each other.

[0076] It will be understood that although the terms "first," "second," "third," etc. may be used herein to describe various elements, components, regions, layers, and / or parts, these elements, components, regions, layers, and / or parts should not be limited by these terms. These terms are used to distinguish one element, component, region, layer, or part from another element, component, region, layer, or part. Thus, 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 without departing from the spirit and scope of the present disclosure.

[0077] It will be understood that when an element or layer is referred to as being "on," "connected to," or "coupled to" another element or layer, it can be directly on, directly connected to, or directly coupled to the other element or layer, or there may be one or more intervening elements or layers. Similarly, when a layer, region, or element is referred to as being "electrically connected to" another layer, region, or element, it can be directly electrically connected to the other layer, region, or element, and / or can be indirectly electrically connected to the other layer, region, or element with one or more intervening layers, regions, or elements therebetween. Furthermore, it will be understood that when an element or layer is referred to as being "between" two elements or layers, it can be the only element or layer between the two elements or layers, or there may also be one or more intervening elements or layers.

[0078] The terms used in this article are used for the purpose of describing specific embodiments and are not intended to limit the present disclosure. As used in this article, the singular forms "a" and "an" are intended to also include the plural forms, unless the context clearly indicates otherwise. It will also be understood that when used in this specification, the terms "comprises," "comprising," "includes," "including," "has," "have," and "having" specify the presence of the features, wholes, steps, operations, elements, and / or parts described, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, parts, and / or combinations thereof. As used in this article, the term "and / or" includes any and all combinations of one or more of the relevant listed items. For example, the expression "A and / or B" means A, B, or A and B. When following an element of a list, expressions such as "at least one of..." modify the elements of the entire list, rather than modifying the individual elements in the list. For example, the expressions "at least one of a, b, and c" and "at least one selected from the group consisting of a, b, and c" refer to only a, only b, only c, both a and b, both a and c, both b and a, all of a, b, and c, or variations thereof.

[0079] As used herein, the terms "substantially," "about," and similar terms are used as terms of approximation and not as terms of degree, and are intended to account for the inherent deviations in measured or calculated values that would be recognized by one of ordinary skill in the art. In addition, when describing embodiments of the present disclosure, the use of "may" means "one or more embodiments of the present disclosure." As used herein, the terms "use," "using," and "used" may be understood as synonymous with the terms "utilize," "utilizing," and "utilized," respectively.

[0080] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by those skilled in the art to which the present disclosure belongs. It will also be understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology and / or this specification, and should not be interpreted in an idealized or overly formal sense unless expressly defined as such herein.

[0081] Figure 1A is a perspective view of an electronic device according to an embodiment of the present disclosure. Figure 1B is a rear perspective view of an electronic device according to an embodiment of the present disclosure.

[0082] refer to Figure 1A and Figure 1B , the electronic device 1000 may represent a device that is activated according to an electrical signal. For example, the electronic device 1000 may display an image and may sense an input applied from the outside (e.g., an external input). The external input may be an input from a user. The user's input may include various suitable types of external inputs, such as a part of the user's body, a pen PN, light, heat, and pressure.

[0083] The electronic device 1000 may include a first display panel DP1 and a second display panel DP2. The first display panel DP1 and the second display panel DP2 may be independent panels separated from each other. The first display panel DP1 may be referred to as a "main display panel," and the second display panel DP2 may be referred to as an "auxiliary display panel" or "external display panel."

[0084] The first display panel DP1 may include a first display portion DA1-F, and the second display panel DP2 may include a second display portion DA2-F. The area of the second display panel DP2 may be smaller than that of the first display panel DP1. The area of the first display portion DA1-F corresponding to the size of the first display panel DP1 may be larger than the area of the second display portion DA2-F corresponding to the size of the second display panel DP2.

[0085] When the electronic device 1000 is unfolded, the first display portion DA1-F may have a plane parallel to or substantially parallel to the first direction DR1 and the second direction DR2. The thickness direction of the electronic device 1000 may be parallel to or substantially parallel to a third direction DR3 that intersects or intersects the first direction DR1 and the second direction DR2. Therefore, the front surface (e.g., top surface / upper surface) and the rear surface (e.g., bottom surface / lower surface) of the components constituting the electronic device 1000 may be defined relative to the third direction DR3.

[0086] The first display panel DP1 or the first display portion DA1-F may include a foldable and unfoldable folding area FA, and a plurality of non-folding areas NFA1 and NFA2 spaced apart from each other with the folding area FA interposed therebetween. The second display panel DP2 may overlap one of the plurality of non-folding areas NFA1 and NFA2. For example, the second display panel DP2 may overlap the first non-folding area NFA1.

[0087] For example, the display direction of the first image IM1a displayed in a portion of the first display panel DP1 (such as in the second non-folding area NFA2) may be deviated from (e.g., may be opposite to) the display direction of the second image IM2a displayed in the second display panel DP2. For example, the first image IM1a may be displayed in a third direction DR3, and the second image IM2a may be displayed in a fourth direction DR4 deviating from (e.g., opposite to) the third direction DR3.

[0088] In an embodiment of the present disclosure, the folding area FA can be bent about a folding axis, for example, extending in a direction parallel to or substantially parallel to the long sides (e.g., long edges) of the electronic device 1000 (e.g., in a direction parallel to or substantially parallel to the second direction DR2). When the electronic device 1000 is folded, the folding area FA can have a suitable curvature (e.g., a given or predetermined curvature) and a suitable curvature radius (e.g., a given or predetermined curvature radius). The first non-folding area NFA1 and the second non-folding area NFA2 can face each other, and in this case, the electronic device 1000 can be folded inward so that the first display portion DA1-F is not exposed to the outside.

[0089] In an embodiment of the present disclosure, the electronic device 1000 can be folded outward so that the first display portion DA1-F is exposed to the outside. In an embodiment of the present disclosure, the electronic device 1000 can support both folding inward from an unfolded state and folding outward from an unfolded state, but the present disclosure is not limited thereto.

[0090] exist Figure 1A, an example of defining one folding area FA in the electronic device 1000 is shown, but the present disclosure is not limited thereto. For example, multiple folding axes and multiple folding areas corresponding thereto may be defined in the electronic device 1000. In this case, the electronic device 1000 can be folded inward and / or outward from each unfolded state in the multiple folding areas.

[0091] According to an embodiment of the present disclosure, at least one of the first display panel DP1 and the second display panel DP2 can sense input via the pen PN, even if a digitizer is not included. Therefore, because the digitizer for sensing the pen PN can be omitted, the increase in thickness, increase in weight, and decrease in flexibility of the electronic device 1000 caused by the addition of the digitizer may not occur. Therefore, in addition to the first display panel DP1, the second display panel DP2 can also be designed to sense the pen PN.

[0092] Figure 2 is a perspective view of an electronic device according to an embodiment of the present disclosure. Figure 3 is a perspective view of an electronic device according to an embodiment of the present disclosure.

[0093] exist Figure 2 , an example is shown in which the electronic device 1000a is a mobile phone, and the electronic device 1000a may include a display panel DP'. Figure 3 , an example in which the electronic device 1000 b is a laptop computer is shown, and the electronic device 1000 b may include a display panel DP′.

[0094] In an embodiment of the present disclosure, the display panel DP' may sense an input applied from the outside (e.g., an external input). The external input may be an input from a user. The user's input may include various suitable types of external inputs, such as a part of the user's body, a pen PN (e.g., a reference Figure 1A ), light, heat and pressure.

[0095] According to an embodiment of the present disclosure, even though the display panel DP′ may not include a digitizer, the display panel DP′ may sense the pen PN (eg, referring to FIG. 2 ). Figure 1A ) input. Therefore, since the digitizer for sensing the pen PN may be omitted, the thickness and weight of the electronic device 1000a or 1000b may not increase due to the addition of the digitizer.

[0096] exist Figure 1A An example in which the electronic device 1000 is a foldable type is shown in FIG. Figure 2, an example of a bar-type electronic device 1000a is shown. However, the present disclosure is not limited thereto. For example, the embodiments described below may be applied to various suitable electronic devices, such as rollable electronic devices, slidable electronic devices, and stretchable electronic devices.

[0097] Figure 4 is a schematic cross-sectional view of a display panel according to an embodiment of the present disclosure.

[0098] refer to Figure 4 , the display panel DP1 , DP2 or DP′ may include a display layer 100 and a sensor layer 200 .

[0099] The display layer 100 may include a base layer 110 , a circuit layer 120 , a light emitting element layer 130 , and an encapsulation layer 140 .

[0100] The base layer 110 may be a member that provides a base surface on which the circuit layer 120 is disposed. The base layer 110 may include a multi-layer structure or a single-layer structure. The base layer 110 may be implemented with a glass substrate, a metal substrate, a silicon substrate, or a polymer substrate, but the present disclosure is not limited thereto.

[0101] The circuit layer 120 may be provided on the base layer 110. The circuit layer 120 may include an insulating layer, a semiconductor pattern, a conductive pattern, a signal line, etc. The insulating layer, the semiconductor layer, and the conductive layer may be formed on the base layer 110 through a coating process or a deposition process, and then the insulating layer, the semiconductor layer, and the conductive layer may be selectively patterned through a plurality of photolithography processes.

[0102] The light emitting element layer 130 may be disposed on the circuit layer 120. The light emitting element layer 130 may include a light emitting element. For example, the light emitting element layer 130 may include an organic light emitting material, an inorganic light emitting material, an organic-inorganic light emitting material, a quantum dot, a quantum rod, a micro-LED, or a nano-LED.

[0103] The encapsulation layer 140 may be disposed on the light emitting element layer 130. The encapsulation layer 140 may protect the light emitting element layer 130 from foreign substances such as moisture, oxygen, and dust particles.

[0104] The sensor layer 200 may be provided on the display layer 100. The sensor layer 200 may sense external input applied from the outside. The sensor layer 200 may be a sensor integrally formed as a continuous sensor during the process of manufacturing the display layer 100, or the sensor layer 200 may be an external sensor attached to the display layer 100. The sensor layer 200 may be referred to as a "sensor," "input sensing layer," "input sensing panel," or "electronic device for sensing input coordinates."

[0105] According to an embodiment of the present disclosure, the sensor layer 200 may sense input provided by a passive type input means such as a user's body and input provided by an input device (eg, a reference Figure 1A The pen PN) is used to generate a magnetic field of a suitable resonant frequency (e.g., a given or predetermined resonant frequency).

[0106] Figure 5 is a diagram illustrating an operation of an electronic device according to an embodiment of the present disclosure.

[0107] refer to Figure 5 , the electronic device 1000 may include a display layer 100, a sensor layer 200, a display driving unit (e.g., a display driver or a display driving circuit) 100C, a sensor driving unit (e.g., a sensor driver or a sensor driving circuit) 200C, a main driving unit (e.g., a main driver or a main driving circuit) 1000C and a power supply circuit 1000P.

[0108] Sensor layer 200 can sense a first input 2000 or a second input 3000 applied externally. Each of first input 2000 and second input 3000 can be an input method that can change the capacitance of sensor layer 200 or an input method that can induce an induced current in sensor layer 200. For example, first input 2000 can be a passive input method such as a user's body. Second input 3000 can be input via a pen PN or an RFIC tag. For example, pen PN can be a passive pen or an active pen.

[0109] In embodiments of the present disclosure, the pen PN may be a device that generates a magnetic field having a suitable resonant frequency (e.g., a given or predetermined resonant frequency). The pen PN may transmit output signals based on electromagnetic resonance. The pen PN may be referred to as an "input device," "input pen," "magnetic pen," "stylus pen," or "electromagnetic resonance pen."

[0110] The pen PN may include an RLC resonant circuit, and the RLC resonant circuit may include an inductor L and a capacitor C. In an embodiment of the present disclosure, the RLC resonant circuit may be a variable resonant circuit having a variable resonant frequency. In this case, the inductor L may be a variable inductor, and / or the capacitor C may be a variable capacitor. However, the present disclosure is not particularly limited thereto.

[0111] The inductor L generates a current based on the magnetic field formed in the sensor layer 200. However, the present disclosure is not particularly limited thereto. For example, when the pen PN operates as an active type, the pen PN can generate a current even if no magnetic field is provided from the outside. The generated current is transmitted to the capacitor C. The capacitor C charges the current transmitted from the inductor L and discharges the charged current to the inductor L. Then, the inductor L can form a magnetic field of a resonant frequency. The induced current can flow in the sensor layer 200 by the magnetic field formed by the pen PN, and the induced current can be transmitted to the sensor drive unit 200C as a received signal (e.g., a sensing signal).

[0112] The main drive unit 1000C can control all operations of the electronic device 1000. For example, the main drive unit 1000C can control the operations of the display drive unit 100C and the sensor drive unit 200C. The main drive unit 1000C may include at least one microprocessor and may also include a graphics controller. The main drive unit 1000C may be referred to as an "application processor," a "central processing unit," or a "main processor."

[0113] The display driver unit 100C can drive the display layer 100. The display driver unit 100C can receive image data and control signals from the main driver unit 1000C. The control signals can include various suitable signals. For example, the control signals can include an input vertical synchronization signal, an input horizontal synchronization signal, a main clock, a data enable signal, etc.

[0114] The sensor driving unit 200C can drive the sensor layer 200. The sensor driving unit 200C can receive a control signal from the main driving unit 1000C. The control signal may include a clock signal for the sensor driving unit 200C. In addition, the control signal may also include a mode selection signal for selecting a driving mode for the sensor driving unit 200C and the sensor layer 200.

[0115] The sensor driving unit 200C may be implemented using an integrated circuit (IC) and may be electrically connected to the sensor layer 200. For example, the sensor driving unit 200C may be directly mounted on a suitable area (e.g., a given or predetermined area) of the display panel DP1, DP2, or DP'. For electrical connection to the sensor layer 200, the sensor driving unit 200C may be mounted on a separate printed circuit board in a chip-on-film (COF) manner.

[0116] The sensor drive unit 200C and the sensor layer 200 can selectively operate in a first mode or a second mode. For example, the first mode can be a mode for sensing touch input (such as, for example, the first input 2000). The second mode can be a mode for sensing input performed by a pen PN (such as, for example, the second input 3000). The first mode can be referred to as a "touch sensing mode", and the second mode can be referred to as a "pen sensing mode".

[0117] Switching between the first mode and the second mode can be performed in various suitable ways. For example, the sensor drive unit 200C and the sensor layer 200 can be driven in the first mode and the second mode in a time-separated manner, and the first input 2000 and the second input 3000 can be sensed. As another example, switching between the first mode and the second mode can be performed by a user's selection or a specific action of the user, one of the first mode or the second mode can be enabled or disabled by activating or deactivating a specific application, or switching from the first mode to the second mode or from the second mode to the first mode can be performed. As another example, when the sensor drive unit 200C and the sensor layer 200 operate alternately in the first mode and the second mode, the first mode can be maintained when the first input 2000 is sensed, or the second mode can be maintained when the second input 3000 is sensed.

[0118] The sensor driver unit 200C can calculate the coordinates of the input based on the signal received from the sensor layer 200 and can provide a coordinate signal including information related to the coordinates to the main driver unit 1000C. The main driver unit 1000C performs an operation corresponding to the user input based on the coordinate signal. For example, the main driver unit 1000C can drive the display driver unit 100C to display a new application image on the display layer 100.

[0119] The power supply circuit 1000P may include a power management integrated circuit (PMIC). The power supply circuit 1000P may generate a plurality of driving voltages for driving the display layer 100, the sensor layer 200, the display driving unit 100C, and the sensor driving unit 200C. For example, the plurality of driving voltages may include a high gate voltage, a low gate voltage, a first driving voltage, a second driving voltage, an initialization voltage, etc., but the present disclosure is not particularly limited thereto.

[0120] Figure 6 is a cross-sectional view of a display panel according to an embodiment of the present disclosure. Figure 6 In the above reference Figure 4 Components that are the same or substantially the same (or similar) as those described are denoted by the same reference numerals / numbers, and thus, redundant descriptions thereof may not be repeated.

[0121] refer to Figure 6 , the base layer 110 may include the first charging electrode SE. In this case, the base layer 110 may be referred to as an “auxiliary layer 110.” This will be described in more detail below.

[0122] At least one buffer layer (BFL) may be formed on the upper surface of the base layer 110. The buffer layer (BFL) may improve the bonding strength between the base layer 110 and the semiconductor pattern. The buffer layer (BFL) may be formed into a multilayer structure. As another example, the display layer 100 may further include a barrier layer. The buffer layer (BFL) may include at least one of silicon oxide, silicon nitride, and silicon oxynitride. For example, the buffer layer (BFL) may include a structure in which silicon oxide layers and silicon nitride layers are alternately stacked.

[0123] A semiconductor pattern (such as a source region SC, an active region AL, a drain region DR, and a connection signal line SCL) may be disposed on the buffer layer BFL. The semiconductor pattern may include polysilicon. However, the present disclosure is not limited thereto. For example, the semiconductor pattern may include amorphous silicon, low-temperature polysilicon, or an oxide semiconductor.

[0124] Figure 6 A portion of a semiconductor pattern is shown (e.g., only a portion thereof is shown), and the semiconductor pattern may be further provided in any other suitable region. The semiconductor pattern may be arranged across a plurality of pixels according to a suitable rule (e.g., a specific or predetermined rule). The electrical characteristics of the semiconductor pattern may be determined differently depending on whether it is doped. The semiconductor pattern may include a first region (such as a source region SC, a drain region DR, a connection signal line SCL) having a relatively high conductivity and a second region (such as an active region AL) having a relatively low conductivity. The first region may be doped with an N-type dopant or a P-type dopant. The P-type transistor may include a region doped with a P-type dopant, and the N-type transistor may include a region doped with an N-type dopant. The second region may be an undoped region, or a region doped with a concentration lower than that in the first region.

[0125] The conductivity of the first region may be greater than that of the second region and may function as or substantially function as an electrode or signal line. The second region may correspond to or substantially correspond to the active region (e.g., channel) AL of the transistor 100PC. In other words, a portion of the semiconductor pattern may be the active region AL of the transistor 100PC, another portion thereof may be the source region SC or the drain region DR of the transistor 100PC, and another portion thereof may be a connection electrode or a connection signal line SCL.

[0126] Each pixel can be represented by an equivalent circuit including seven transistors, a capacitor, and a light emitting element, but the equivalent circuit of the pixel can be modified differently as needed or desired. Figure 6 1 and 2 show one transistor 100PC and one light emitting element 100PE included in a pixel (eg, included in one pixel) as an example.

[0127] The source region SC, the active region AL, and the drain region DR of the transistor 100PC may be formed of a semiconductor pattern. In a cross-sectional view, the source region SC and the drain region DR may extend from the active region AL in directions away from each other (eg, in directions opposite to each other). Figure 6 A portion of a connection signal line SCL formed from a semiconductor pattern is shown in . The connection signal line SCL may be connected to the drain region DR of the transistor 100PC in another view (eg, in a plan view).

[0128] The first insulating layer 10 may be disposed on the buffer layer BFL. The first insulating layer 10 may overlap with a plurality of pixels in common and may cover a semiconductor pattern. The first insulating layer 10 may be an inorganic layer and / or an organic layer and may have a single-layer or multi-layer structure. The first insulating layer 10 may include at least one of aluminum oxide, titanium oxide, silicon oxide, silicon nitride, silicon oxynitride, zirconium oxide, and hafnium oxide. In an embodiment, the first insulating layer 10 may be a single silicon oxide layer. In addition to the first insulating layer 10, the insulating layer of the circuit layer 120, which will be described in more detail below, may also be an inorganic layer and / or an organic layer and may have a single-layer or multi-layer structure. The inorganic layer may include at least one of the materials described above, but the present disclosure is not limited thereto.

[0129] The gate GT of the transistor 100PC is disposed on the first insulating layer 10. The gate GT may be part of a metal pattern. The gate GT overlaps with the active area AL. The gate GT may be used as a mask in a process of doping or reducing a semiconductor pattern.

[0130] The second insulating layer 20 may be provided on the first insulating layer 10 and may cover the gate electrode GT. The second insulating layer 20 may overlap with a plurality of pixels in common. The second insulating layer 20 may be an inorganic layer and / or an organic layer and may have a single layer or a multilayer structure. The second insulating layer 20 may include at least one of silicon oxide, silicon nitride, and silicon oxynitride. In an embodiment, the second insulating layer 20 may have a multilayer structure including a silicon oxide layer and a silicon nitride layer.

[0131] The third insulating layer 30 may be provided on the second insulating layer 20. The third insulating layer 30 may have a single layer or a multi-layer structure. In an embodiment, the third insulating layer 30 may have a multi-layer structure including a silicon oxide layer and a silicon nitride layer.

[0132] The first connection electrode CNE1 may be disposed on the third insulating layer 30. The first connection electrode CNE1 may be connected to the connection signal line SCL through a contact hole CNT-1 penetrating the first insulating layer 10, the second insulating layer 20, and the third insulating layer 30.

[0133] The fourth insulating layer 40 may be disposed on the third insulating layer 30. The fourth insulating layer 40 may be a single silicon oxide layer. The fifth insulating layer 50 may be disposed on the fourth insulating layer 40. The fifth insulating layer 50 may be an organic layer.

[0134] The second connection electrode CNE2 may be disposed on the fifth insulating layer 50. The second connection electrode CNE2 may be connected to the first connection electrode CNE1 through a contact hole CNT-2 penetrating the fourth insulating layer 40 and the fifth insulating layer 50.

[0135] The sixth insulating layer 60 may be disposed on the fifth insulating layer 50 and may cover the second connection electrode CNE2. The sixth insulating layer 60 may be an organic layer.

[0136] The light-emitting element layer 130 may be disposed on the circuit layer 120. The light-emitting element layer 130 may include a light-emitting element 100PE. For example, the light-emitting element layer 130 may include an organic light-emitting material, an inorganic light-emitting material, an organic-inorganic light-emitting material, a quantum dot, a quantum rod, a micro-LED, or a nano-LED. Hereinafter, an example in which the light-emitting element 100PE is an organic light-emitting element will be described in more detail, but the present disclosure is not limited thereto.

[0137] The light emitting element 100PE may include a first electrode AE, a light emitting layer EL, and a second electrode CE.

[0138] The first electrode AE may be disposed on the sixth insulating layer 60. The first electrode AE may be connected to the second connection electrode CNE2 through a contact hole CNT-3 penetrating the sixth insulating layer 60.

[0139] The pixel defining layer 70 may be disposed on the sixth insulating layer 60 and may cover a portion of the first electrode AE. An opening 70-OP is defined in the pixel defining layer 70. The opening 70-OP of the pixel defining layer 70 exposes at least a portion of the first electrode AE.

[0140] The first display portion DA1-F (for example, referring to Figure 1A ) may include an emission region PXA and a non-emission region NPXA adjacent to the emission region PXA. The non-emission region NPXA may surround the emission region PXA (e.g., around the periphery of the emission region PXA). In an embodiment, the emission region PXA is defined as a portion of the first electrode AE exposed by the opening 70-OP.

[0141] The light-emitting layer EL may be disposed on the first electrode AE. The light-emitting layer EL may be disposed in a region corresponding to the opening 70-OP. In other words, the light-emitting layer EL may be formed independently for each pixel. When the light-emitting layer EL is formed independently for each pixel, each of the light-emitting layers EL may emit at least one of blue, red, and green light. However, the present disclosure is not limited thereto. For example, the light-emitting layer EL (also referred to as an emission layer) may be commonly connected to a plurality of pixels. In this case, the light-emitting layer EL may provide blue light, or may provide white light.

[0142] The second electrode CE may be disposed on the light emitting layer EL. The second electrode CE may have an integral shape and may be commonly included in a plurality of pixels.

[0143] In an embodiment of the present disclosure, a hole control layer may be interposed between the first electrode AE and the light-emitting layer EL. The hole control layer may be commonly disposed in the emission region PXA and the non-emission region NPXA. The hole control layer may include a hole transport layer and may also include a hole injection layer. An electron control layer may be disposed between the light-emitting layer EL and the second electrode CE. The electron control layer may include an electron transport layer and may also include an electron injection layer. The hole control layer and the electron control layer may be commonly formed in multiple pixels using an open mask or an inkjet process.

[0144] The encapsulation layer 140 may be provided on the light-emitting element layer 130. The encapsulation layer 140 may include an inorganic layer, an organic layer, and an inorganic layer stacked sequentially, but the layers constituting the encapsulation layer 140 are not particularly limited thereto. The inorganic layer may protect the light-emitting element layer 130 from moisture and oxygen, and the organic layer may protect the light-emitting element layer 130 from foreign matter such as dust particles. The inorganic layer may include a silicon nitride layer, a silicon oxynitride layer, a silicon oxide layer, a titanium oxide layer, an aluminum oxide layer, and the like. The organic layer may include an acrylic-based organic layer, but the present disclosure is not limited thereto.

[0145] The sensor layer 200 may include a base layer 201 , a first conductive layer 202 , a sensing insulating layer 203 , a second conductive layer 204 , and a cover insulating layer 205 .

[0146] The base layer 201 may be an inorganic layer including at least one of silicon nitride, silicon oxynitride, and silicon oxide. As another example, the base layer 201 may be an organic layer including epoxy resin, acrylate resin, or imide-based resin. The base layer 201 may have a single-layer structure, or may have a structure in which a plurality of layers are stacked in the third direction DR3.

[0147] Each of the first conductive layer 202 and the second conductive layer 204 may have a single-layer structure, or may have a structure in which a plurality of layers are stacked in the third direction DR3 .

[0148] Each of the first conductive layer 202 and the second conductive layer 204 of the single-layer structure may include a metal layer or a transparent conductive layer. The metal layer may include molybdenum, silver, titanium, copper, aluminum, or a suitable alloy thereof. The transparent conductive layer may include a transparent conductive oxide such as indium tin oxide (ITO), indium zinc oxide (IZO), zinc oxide (ZnO), or indium zinc tin oxide (IZTO). In addition, the transparent conductive layer may include a conductive polymer such as poly (3,4-ethylenedioxythiophene) (PEDOT), metal nanowires, graphene, etc.

[0149] Each of the first conductive layer 202 and the second conductive layer 204 of the multi-layer structure may include multiple metal layers. The metal layer may have a three-layer structure of, for example, titanium / aluminum / titanium. The conductive layer of the multi-layer structure may include at least one metal layer and at least one transparent conductive layer.

[0150] At least one of the sensing insulating layer 203 and the capping insulating layer 205 may include an inorganic layer, and the inorganic layer may include at least one of aluminum oxide, titanium oxide, silicon oxide, silicon nitride, silicon oxynitride, zirconium oxide, and hafnium oxide.

[0151] At least one of the sensing insulating layer 203 and the cover insulating layer 205 may include an organic layer. The organic layer may include at least one of acrylic-based resin, methacrylic-based resin, polyisoprene, ethylene-based resin, epoxy-based resin, urethane-based resin, cellulose-based resin, siloxane-based resin, polyimide-based resin, polyamide-based resin, and perylene-based resin.

[0152] Figure 7 is a plan view of a sensor layer according to an embodiment of the present disclosure. Figure 8 is an enlarged plan view of a sensing unit according to an embodiment of the present disclosure. Figure 9A is a plan view illustrating a first conductive layer of a sensing unit according to an embodiment of the present disclosure. Figure 9B is a plan view illustrating a second conductive layer of a sensing unit according to an embodiment of the present disclosure. Figure 9C According to the embodiment of the present disclosure Figure 9A and Figure 9B A cross-sectional view of the sensor layer taken along line II' in each of FIG.

[0153] refer to Figures 7 to 9C In the sensor layer 200, an active area 200A and a peripheral area 200NA adjacent to the active area 200A may be defined. The active area 200A may be a region activated by an electrical signal. For example, the active area 200A may be a region in which an input is sensed.

[0154] A plurality of sensing units (eg, a plurality of sensing regions or sensing areas) SU may be provided in the active area 200A and may be defined in the sensor layer 200. The plurality of sensing units SU may be arranged along the first direction DR1 and the second direction DR2.

[0155] The sensor layer 200 may include a plurality of first electrodes 210 , a plurality of second electrodes 220 , and a plurality of auxiliary electrodes 230 .

[0156] The plurality of first electrodes 210 and the plurality of second electrodes 220 may cross each other to be insulated from each other. Each of the plurality of first electrodes 210 may extend along the second direction DR2. The plurality of first electrodes 210 may be arranged to be spaced apart from each other along the first direction DR1.

[0157] Each of the plurality of second electrodes 220 may extend along the first direction DR1 , and the plurality of second electrodes 220 may be arranged to be spaced apart from each other along the second direction DR2 .

[0158] An area of each of the plurality of first electrodes 210 may be smaller than an area of each of the plurality of second electrodes 220 .

[0159] In a plan view, a first length W1 of each of the plurality of first electrodes 210 in the second direction DR2 may be smaller than a second length W2 of each of the plurality of second electrodes 220 in the first direction DR1 .

[0160] The sensing unit SU of the sensor layer 200 may refer to a region where one first electrode 210 and one second electrode 220 cross each other. The sensing unit SU may include one first electrode 210 among the plurality of first electrodes 210 and one second electrode 220 among the plurality of second electrodes 220.

[0161] Each of the plurality of first electrodes 210 may include first partial electrodes 210dv1 and 210dv2. The first partial electrodes 210dv1 and 210dv2 may extend in the second direction DR2 and may be spaced apart from each other in the first direction DR1. The first partial electrodes 210dv1 and 210dv2 may be symmetrical or substantially symmetrical with each other with respect to a line extending in the second direction DR2.

[0162] Each of the plurality of second electrodes 220 may include a sensing pattern 221 and a bridge pattern 222. The sensing pattern 221 and the bridge pattern 222 may be provided in different layers from each other and may be electrically connected to each other through the first contact portion CNa. For example, the bridge pattern 222 may be included in the first conductive layer 202SU, and the sensing pattern 221 and the first sub-electrodes 210dv1 and 210dv2 may be included in the second conductive layer 204SU. The first conductive layer 202SU may be included in the above reference Figure 6 The first conductive layer 202 is described, and the second conductive layer 204SU may be included in the second conductive layer 204 .

[0163] Each of the plurality of auxiliary electrodes 230 may extend in the second direction DR2 . The plurality of auxiliary electrodes 230 may be arranged to be spaced apart from each other along the first direction DR1 . The plurality of auxiliary electrodes 230 may be insulated from the plurality of second electrodes 220 .

[0164] In an embodiment of the present disclosure, each of the plurality of auxiliary electrodes 230 may include at least one pattern electrode 230S. For example, two or more pattern electrodes 230S may be connected in parallel to each other. The number of pattern electrodes 230S included in each of the plurality of auxiliary electrodes 230 may be modified differently as needed or desired. For example, as the number of pattern electrodes 230S included in each of the plurality of auxiliary electrodes 230 increases, the resistance of each of the plurality of auxiliary electrodes 230 may be reduced. In this case, the efficiency of power (e.g., power consumption) may be improved, and the sensitivity of sensing may be improved. On the other hand, as the number of pattern electrodes 230S included in each of the plurality of auxiliary electrodes 230 decreases, the plurality of auxiliary electrodes 230 may be implemented as more different desired shapes, for example, formed as a ring coil pattern.

[0165] exist Figure 7 , an example is shown in FIG. 2 , in which one auxiliary electrode 230 includes two pattern electrodes 230S, but the present disclosure is not particularly limited thereto. The pattern electrodes 230S may be arranged in a one-to-one correspondence with the plurality of first electrodes 210. Therefore, one sensing unit SU may further include a portion of one pattern electrode 230S.

[0166] Each of the plurality of first electrodes 210 may surround a corresponding pattern electrode 230S (e.g., around the periphery of the corresponding pattern electrode 230S). A coupling capacitor may be defined between one first electrode 210 and one auxiliary electrode 230. In this case, the induced current generated during the sensing of the pen PN may be coupled to the coupling capacitor Ccp (e.g., reference numeral 1). Figure 18) is transmitted from the auxiliary electrode 230 to the first electrode 210. In other words, the auxiliary electrode 230 can play a role in enhancing the signal (e.g., current) to be transmitted from the first electrode 210 to the sensor driving unit 200C. Therefore, when the phase of the signal induced on the auxiliary electrode 230 and the phase of the signal induced on the first electrode 210 match each other, the maximum effect can be obtained. Therefore, the center of each of the plurality of first electrodes 210 in the second direction DR2 and the center of each of the plurality of auxiliary electrodes 230 in the second direction DR2 can overlap with each other. In addition, the center of each of the plurality of first electrodes 210 in the first direction DR1 and the center of each of the plurality of auxiliary electrodes 230 in the first direction DR1 can overlap with each other.

[0167] In an embodiment of the present disclosure, since one auxiliary electrode 230 may include two pattern electrodes 230S, one auxiliary electrode 230 may correspond to (e.g., may overlap) two first electrodes 210. Therefore, the number of first electrodes 210 included in the sensor layer 200 may be greater than the number of auxiliary electrodes 230. For example, the number of first electrodes 210 may be equal to the product of the number of auxiliary electrodes 230 included in the sensor layer 200 and the number of pattern electrodes 230S included in each of the auxiliary electrodes 230. Figure 7 , the number of the first electrodes 210 may be eight, the number of the auxiliary electrodes 230 may be four, and the number of the pattern electrodes 230S included in each of the auxiliary electrodes 230 may be two.

[0168] Each of the plurality of auxiliary electrodes 230 may include a first auxiliary pattern 231 and a second auxiliary pattern 232. The first auxiliary pattern 231 and the second auxiliary pattern 232 may be provided in different layers from each other. The first auxiliary pattern 231 and the second auxiliary pattern 232 may be electrically connected to each other via a second contact portion CNb. The first auxiliary pattern 231 may be included in the first conductive layer 202SU, and the second auxiliary pattern 232 may be included in the second conductive layer 204SU.

[0169] In an embodiment of the present disclosure, a portion of the first auxiliary pattern 231 may overlap a portion of each of the first division electrodes 210dv1 and 210dv2 , thereby providing (eg, forming) a coupling capacitor between the first electrode 210 and the auxiliary electrode 230 .

[0170] In an embodiment of the present disclosure, the first conductive layer 202SU may further include dummy patterns DMP. Each of the dummy patterns DMP may be electrically floating or electrically grounded. In an embodiment of the present disclosure, the dummy patterns DMP may be omitted as needed or desired.

[0171] The sensor layer 200 may further include a plurality of first traces 210t, a plurality of first pads PD1 connected one-to-one to the first traces 210t, a plurality of second traces 220t, and a plurality of second pads PD2 connected one-to-one to the second traces 220t, which may be disposed in the peripheral area 200NA.

[0172] The first traces 210t can be electrically connected to the first electrodes 210 in a one-to-one correspondence. The two first sub-electrodes 210dv1 and 210dv2 included in one first electrode 210 can be connected to one of the first traces 210t. Each of the first traces 210t may include a plurality of branch portions for connecting to the two first sub-electrodes 210dv1 and 210dv2. In an embodiment of the present disclosure, the two first sub-electrodes 210dv1 and 210dv2 can be connected to each other within the active area 200A.

[0173] The second traces 220t may be electrically connected in a one-to-one correspondence to the first and second ends of the second electrodes 220. In other words, one second electrode 220 may be connected to two second traces 220t.

[0174] The connection method of the second trace 220t may be referred to as a "double routing method."

[0175] The sensor layer 200 may further include a charging trace 230 t and a plurality of third pads PD3 disposed in the peripheral area 200NA.

[0176] The charging trace 230t may include a 3-1st trace 230rt1 and a 3-2nd trace 230rt2.

[0177] The first and second ends of the 3-1st trace 230rt1 may be connected to the third pad PD3 , respectively, and the 3-2nd trace 230rt2 may be connected to another third pad PD3 , respectively.

[0178] The 3-1st trace 230rt1 may be electrically connected to the auxiliary electrode 230. For example, the 3-1st trace 230rt1 may be electrically connected to all of the auxiliary electrodes 230. In this case, the plurality of auxiliary electrodes 230 may be electrically connected to each other. The 3-1st trace 230rt1 may include a first line portion 231t extending in the first direction DR1 and electrically connected to the auxiliary electrode 230, a second line portion 232t extending from a first end of the first line portion 231t in the second direction DR2, and a third line portion 233t extending from a second end of the first line portion 231t in the second direction DR2.

[0179] In an embodiment of the present disclosure, each of the resistance of the second line portion 232t and the resistance of the third line portion 233t can be the same as or substantially the same as the resistance of one of the auxiliary electrodes 230. Therefore, the second line portion 232t and the third line portion 233t can be used as one of the auxiliary electrodes 230, and therefore, the same or substantially the same effect as the auxiliary electrode 230 being provided in the peripheral area 200NA can be obtained. For example, one of the second line portion 232t and the third line portion 233t and one of the auxiliary electrodes 230 can form a coil. Therefore, the pen PN located in an area close to the peripheral area 200NA (for example, reference Figure 1A ) can also be fully charged through a loop including the second line portion 232t or the third line portion 233t.

[0180] In the embodiment of the present disclosure, in order to adjust the resistance of the second line portion 232t and the resistance of the third line portion 233t, the width of the second line portion 232t in the first direction DR1 and the width of the third line portion 233t in the first direction DR1 can be adjusted. However, the present disclosure is not limited thereto. For example, the first line portion 231t, the second line portion 232t, and the third line portion 233t can have the same or substantially the same width as each other.

[0181] The 3-2nd trace lines 230rt2 may be connected one-to-one to the auxiliary electrodes 230. In other words, the number of the 3-2nd trace lines 230rt2 may correspond to the number of the auxiliary electrodes 230. Figure 7 Four 3-2nd traces 230rt2 are shown in FIG. 1 as an example.

[0182] Figure 10A is a plan view illustrating a first conductive layer of a sensing unit according to an embodiment of the present disclosure. Figure 10B is a plan view illustrating a second conductive layer of a sensing unit according to an embodiment of the present disclosure. Figure 10C According to the embodiment of the present disclosure Figure 10A and Figure 10B A cross-sectional view of the sensor layer taken along line II-II' in each of FIG.

[0183] refer to Figures 10A to 10C , each of the plurality of first electrodes 210 may include a first sensing pattern 211 and a plurality of first bridge patterns 212. The first sensing patterns 211 may be spaced apart from each other in the second direction DR2. The first bridge pattern 212 may extend in the second direction DR2 and may be electrically connected to the first sensing pattern 211 through the first contact portion CNa1. Figure 10A and Figure 10B, an example is shown in which two adjacent first sensing patterns 211 are electrically connected to each other through two first bridge patterns 212, but the present disclosure is not particularly limited thereto. For example, two adjacent first sensing patterns 211 may be electrically connected to each other through one first bridge pattern 212, or may be electrically connected to each other through three or more first bridge patterns 212.

[0184] The first sensing patterns 211 adjacent to each other in the second direction DR2 may be spaced apart from each other, with the second electrode 220 interposed therebetween. In an embodiment of the present disclosure, the first sensing patterns 211 and the second electrode 220 may be included in the second conductive layer 204SUa, and the first bridge pattern 212 may be included in the first conductive layer 202SUa. The first bridge pattern 212 may be insulated from the second electrode 220 overlapping with the first bridge pattern 212, and may cross the second electrode 220 overlapping with the first bridge pattern 212.

[0185] Each of the pattern electrodes 230S may extend in the second direction DR2. The pattern electrodes 230S may be included in the first conductive layer 202SUa. One or more holes may be defined in each of the pattern electrodes 230S. One first bridge pattern 212 may be disposed in one hole. Therefore, the first bridge pattern 212 may be electrically insulated from the pattern electrodes 230S.

[0186] In an embodiment of the present disclosure, the first conductive layer 202SUa may further include a first dummy pattern DMP1, and the second conductive layer 204SUa may further include a second dummy pattern DMP2. Each of the first dummy pattern DMP1 and the second dummy pattern DMP2 may be floating or electrically floating. Each of the first dummy pattern DMP1 and the second dummy pattern DMP2 may be divided into a plurality of conductive patterns. For example, one first dummy pattern DMP1 may include a plurality of floating dummy patterns that are spaced apart (e.g., separated) or electrically separated from each other.

[0187] refer to Figure 10C , the area of the pattern electrode 230S and the area of the first sensing pattern 211 can be adjusted. For example, the position of the boundary between the pattern electrode 230S and the first dummy pattern DMP1 and the position of the boundary between the first sensing pattern 211 and the second dummy pattern DMP2 can be adjusted. In this case, when the area where the pattern electrode 230S and the first sensing pattern 211 overlap with each other is adjusted, the capacitance of the coupling capacitor C-CP between the pattern electrode 230S and the first sensing pattern 211 can be adjusted.

[0188] Figure 11 is a diagram illustrating an operation of a sensor driving unit according to an embodiment of the present disclosure.

[0189] refer to Figure 5 and Figure 11 , the sensor driving unit 200C may selectively operate in one of the first operation mode DMD1 , the second operation mode DMD2 , and the third operation mode DMD3 .

[0190] The first operating mode DMD1 may be referred to as a "touch and pen standby mode," the second operating mode DMD2 may be referred to as a "touch enabled and pen standby mode," and the third operating mode DMD3 may be referred to as a "pen enabled mode." The first operating mode DMD1 may be a mode for waiting for a first input 2000 and a second input 3000. The second operating mode DMD2 may be a mode for sensing the first input 2000 and waiting for the second input 3000. The third operating mode DMD3 may be a mode for sensing the second input 3000.

[0191] In an embodiment of the present disclosure, the sensor drive unit 200C may be driven first in the first operating mode DMD1. When a first input 2000 is sensed in the first operating mode DMD1, the sensor drive unit 200C may switch (e.g., change) to the second operating mode DMD2. As another example, when a second input 3000 is sensed in the first operating mode DMD1, the sensor drive unit 200C may switch (e.g., change) to the third operating mode DMD3.

[0192] In an embodiment of the present disclosure, when the second input 3000 is sensed in the second operating mode DMD2, the sensor drive unit 200C may switch (e.g., may change) to the third operating mode DMD3. When the first input 2000 is released (e.g., not sensed) in the second operating mode DMD2, the sensor drive unit 200C may switch to the first operating mode DMD1. When the second input 3000 is released (e.g., not sensed) in the third operating mode DMD3, the sensor drive unit 200C may switch to the first operating mode DMD1.

[0193] Figure 12 is a diagram illustrating an operation of a sensor driving unit according to an embodiment of the present disclosure.

[0194] refer to Figure 5 、 Figure 7 、 Figure 11 and Figure 12 , operations over time t in the first operation mode DMD1 , the second operation mode DMD2 , and the third operation mode DMD3 are shown as examples.

[0195] In the first operation mode DMD1, the sensor driving unit 200C may be repeatedly driven in the second mode MD2-d and the first mode MD1-d. During the second mode MD2-d, the sensor layer 200 may be scanned and driven to detect the second input 3000. During the first mode MD1-d, the sensor layer 200 may be scanned and driven to detect the first input 2000. Figure 12 2 shows an example in which the sensor drive unit 200C operates in the first mode MD1-d immediately after (eg, consecutive to) the second mode MD2-d, but the order of the first mode MD1-d and the second mode MD2-d is not limited thereto.

[0196] In the second operating mode DMD2, the sensor driving unit 200C may be repeatedly driven in the second mode MD2-d and the first mode MD1. During the second mode MD2-d, the sensor layer 200 may be scanned and driven to detect the second input 3000. During the first mode MD1, the sensor layer 200 may be scanned and driven to detect the coordinates of the first input 2000.

[0197] In the third operating mode DMD3, the sensor driving unit 200C may be driven in the second mode MD2. During the second mode MD2, the sensor layer 200 may be scanned and driven to detect the coordinates of the second input 3000. In the third operating mode DMD3, the sensor driving unit 200C may not operate in the first mode MD1-d or MD1 until the second input 3000 is released (e.g., not sensed).

[0198] Figure 13 A first mode of a sensor layer and a sensor driving unit according to an embodiment of the present disclosure is shown. Figure 14A FIG. 1 shows a first mode of a sensor layer and a sensor driving unit according to an embodiment of the present disclosure. Figure 13 and Figure 14A In the above reference Figure 7 Components that are the same or substantially the same (or similar) as those described are denoted by the same reference numerals / numbers, and thus, redundant descriptions thereof may not be repeated.

[0199] refer to Figure 12 、 Figure 13 and Figure 14A , each of the first mode MD1 - d and the first mode MD1 may be a mode for sensing a touch.

[0200] The first mode MD1 - d and the first mode MD1 may include a mutual capacitance detection mode. However, the present disclosure is not limited thereto. The first mode MD1 - d and the first mode MD1 according to an embodiment of the present disclosure may further include a magnetic capacitance detection mode.

[0201] The sensor driving unit 200C may include a driving part (e.g., a driver or a driving circuit) DP, multiple sensing parts (e.g., multiple sensors or multiple sensing circuits) SP, a ground (e.g., a ground voltage) GND, multiple pad parts, a first switch SW1, and a second switch SW2.

[0202] The driving part DP may generate a signal to be provided to the sensor layer 200. The driving part DP may generate a driving signal (eg, an output signal) TX.

[0203] Each of the plurality of sensing parts SP may be implemented with an analog front end. Each of the plurality of sensing parts SP may include an amplifier AMP and a capacitor CAP.

[0204] The first input terminal of the amplifier AMP can be connected to the second switch SW2. The second input terminal of the amplifier AMP can be connected to a voltage supply unit (e.g., a voltage supply or a voltage supply circuit) that provides a voltage having a suitable voltage level (e.g., a given or predetermined voltage level). A voltage having a voltage level corresponding to the ground GND can be provided to the voltage supply. The ground connected to the second input terminal can be connected to the ground GND. Figure 13 The ground GND shown is the same or substantially the same as shown. However, the present disclosure is not limited thereto. The components connected to the second input terminal of the amplifier AMP according to the embodiment of the present disclosure are not limited thereto. For example, another voltage (e.g., a given or predetermined another voltage) may be provided to the second input terminal of the amplifier AMP.

[0205] The signal output through the output terminal of the amplifier AMP may be filtered, and then the filtered signal may be converted into a digital signal.

[0206] The capacitor CAP may be connected between the first input terminal and an output terminal of the amplifier AMP.

[0207] The plurality of pad portions may include a plurality of first pads PD1 (eg, reference pads PD2, PD3, PD4, PD5, PD6, PD7, PD8, PD9, PD10, PD11, PD12, PD13, PD14, PD15, PD16, PD17, PD18, PD19, PD20, PD21, PD22, PD23, PD2 Figure 7 ), first pad portions connected to a plurality of second pads PD2, and third pad portions connected to a plurality of third pads PD3, respectively.

[0208] The second pad portion may include a 2-1st pad portion PD-1 and a 2-2nd pad portion PD-2. The 2-1st pad portion PD-1 and the 2-2nd pad portion PD-2 may be connected to a plurality of second pads PD2 (eg, Figure 7 ) among the two corresponding second pads PD2.

[0209] The 2-1st pad portion PD-1 may be electrically connected to the first end E1 of one second electrode 220 among the plurality of second electrodes 220. The 2-1st pad portion PD-1, the second pad PD2 (eg, referring to Figure 7 ), the second trace 220t and the first end E1 may be connected to each other.

[0210] The 2-2 pad portion PD-2 may be electrically connected to the second end E2 of one second electrode 220 among the plurality of second electrodes 220. The 2-2 pad portion PD-2, the second pad PD2 (eg, referring to Figure 7 ), the second trace 220t and the second end E2 may be connected to each other.

[0211] The first switch SW1 may be connected to the 2-1st pad portion PD-1. The first switch SW1 may provide a connection between the 2-1st pad portion PD-1 and a voltage supply unit for supplying a voltage having a given voltage level, or provide a connection between the 2-1st pad portion PD-1 and the 2-2nd pad portion PD-2. The voltage supply unit may be a ground GND.

[0212] The second switch SW2 may be connected to the 2-2nd pad portion PD-2. The second switch SW2 may provide a connection between the 2-2nd pad portion PD-2 and the driving portion DP, or provide a connection between the 2-2nd pad portion PD-2 and the sensing portion SP.

[0213] In the first mode MD1-d and the first mode MD1, the sensor driving unit 200C may electrically connect the first end E1 and the second end E2 of each of the plurality of second electrodes 220. The first switch SW1 may be connected to the 2-1st pad portion PD-1 and the 2-2nd pad portion PD-2, and the second switch SW2 may be connected to the 2-2nd pad portion PD-2 and the driving portion DP.

[0214] In the sensor layer 200 , the first end of the second trace 220 t connected to the first end E1 and the first end of the second trace 220 t connected to the second end E2 may not be connected to each other.

[0215] The first end of the second trace 220 t connected to the first end E1 and the first end of the second trace 220 t connected to the second end E2 may be connected to each other through the first switch SW1 in the sensor driving unit 200C.

[0216] According to some embodiments of the present disclosure, each of the plurality of second electrodes 220 can be double-wired within the sensor drive unit 200C via the first switch SW1 and the second switch SW2. The drive signal TX can be transmitted to opposite ends of each of the plurality of second electrodes 220. This can prevent or substantially prevent the intensity of the drive signal TX from decreasing. Consequently, sensing reliability can be improved.

[0217] According to some embodiments of the present disclosure, the sensor driving unit 200C may more easily drive the sensor layer 200 by using the first switch SW1 and the second switch SW2 according to a mode. Therefore, the electronic device 1000 having improved reliability may be provided.

[0218] exist Figure 13 FIG. 2 shows an example of providing a driving signal TX to one second electrode 220. Figure 13 , only one second electrode 220 to which the driving signal TX is supplied is shown as shaded.

[0219] The sensor driving unit 200C may sequentially transmit the driving signal TX to the plurality of second electrodes 220 .

[0220] The plurality of pad portions connected to the plurality of first pads PD1 (eg, reference Figure 7 ) may be respectively connected to the plurality of sensing parts SP. Each of the plurality of sensing parts SP may be implemented to operate in a single-ended mode.

[0221] Each of the plurality of sensing portions SP may include an amplifier AMP and a capacitor CAP connected to the amplifier AMP. A first input terminal of the amplifier AMP may be connected to a corresponding one of the first pad portions. A second input terminal of the amplifier AMP may be connected to ground. The ground connected to the second input terminal may be the same as or substantially the same as ground GND. A signal outputted through an output terminal of the amplifier AMP may be filtered. The filtered signal may then be converted into a digital signal.

[0222] Each of the plurality of sensing parts SP may receive a reception signal RX from each of the plurality of first electrodes 210. The sensor driving unit 200C may detect the coordinates of the first input 2000 by using the reception signal RX. For example, the sensor driving unit 200C may sense a change in mutual capacitance between the first electrode 210 and the second electrode 220 based on a digital signal, and may calculate the coordinates of the touch based on the sensing result.

[0223] In another embodiment of the present disclosure, the coordinates of the first input 2000 may be detected based on a signal obtained by amplifying a difference between a digital signal sensed from one first electrode 210 and a digital signal sensed from another first electrode 210 adjacent thereto.

[0224] In the first mode MD1-d and the first mode MD1, the pad portions connected to the plurality of first pads PD1 (eg, referring to Figure 7 ) can be connected to the ground GND. All auxiliary electrodes 230 can be electrically connected to the ground GND. Therefore, the introduction of touch noise through the plurality of auxiliary electrodes 230 can be prevented or substantially prevented.

[0225] In a comparative example, for sensing pen PN, the sensor layer may further include additional electrodes extending in the same direction as the plurality of second electrodes 220, and each of the additional electrodes may form a coupling capacitor with each of the plurality of second electrodes 220. In this case, the area of each of the plurality of second electrodes 220 may be reduced compared to a configuration in which the additional electrodes are omitted. Furthermore, since parasitic capacitance may be formed between the additional electrodes and any adjacent electrodes, this may result in a reduction in touch bandwidth. However, according to some embodiments of the present disclosure, the sensor drive unit 200C may include a first switch SW1 and a second switch SW2. In this case, even if the additional electrodes are omitted, the driving operation of the first switch SW1 and the second switch SW2 can facilitate sensing of pen PN. The area of each of the plurality of second electrodes 220 can be relatively large, thereby reducing the resistance of each of the plurality of second electrodes 220. Consequently, the load on each of the plurality of second electrodes 220 can be reduced. This can improve the touch bandwidth of the signal sensed by the sensor drive unit 200C. Consequently, an electronic device 1000 with improved touch reliability can be provided.

[0226] Figure 14B A first mode of a sensor layer and a sensor driving unit according to an embodiment of the present disclosure is shown.

[0227] refer to Figure 12 、 Figure 13 and Figure 14B , connected to the plurality of first pads PD1 (eg, reference Figure 7 ) can be respectively connected to a plurality of sensing parts (eg, a plurality of sensors or a plurality of sensing circuits) SPa. The plurality of sensing parts SPa can be implemented to operate in a differential mode.

[0228] Each of the plurality of sensing portions SPa may include an amplifier AMPa and a plurality of capacitors CAP1 and CAP2. A first input terminal of the amplifier AMPa may be connected to a corresponding one of the first pad portions. A second input terminal of the amplifier AMPa may be connected to another one of the first pad portions. A signal outputted through an output terminal of the amplifier AMPa may be filtered. The filtered signal may then be converted into a digital signal.

[0229] The first capacitor CAP1 may be connected between the first input terminal and the output terminal. The second capacitor CAP2 may be connected between the second input terminal and the output terminal.

[0230] Each of the plurality of sensing parts SPa may receive a first reception signal RXa from one of the plurality of first electrodes 210, and may receive a second reception signal RXb from another one of the plurality of first electrodes 210. Each of the plurality of sensing parts SPa may receive reception signals RXa and RXb from one of the plurality of first electrodes 210 and another one of the plurality of first electrodes 210 adjacent thereto, and may amplify a difference between the reception signals RXa and RXb.

[0231] The sensor driving unit 200C can detect the first input 2000 (eg, referring to FIG. 2 ) by using the first reception signal RXa and the second reception signal RXb. Figure 5 For example, the sensor driving unit 200C may sense a change in mutual capacitance between the first electrode 210 and the second electrode 220, and may calculate the coordinates of the touch based on the sensing result.

[0232] Figure 15 A second mode of the sensor layer and the sensor driving unit according to an embodiment of the present disclosure is shown. Figure 16 A graph showing waveforms of a first signal and a second signal according to an embodiment of the present disclosure.

[0233] refer to Figure 5 、 Figure 13 、 Figure 15 and Figure 16 , the second modes MD2 and MD2-d may include a charging mode and a sensing mode.

[0234] In the charging mode, the sensor driving unit 200C may transmit charging signals SG1 and SG2 to the sensor layer 200 .

[0235] The sensor driving unit 200C may include a driving portion (eg, a driver or a driving circuit) DP and a plurality of pad portions.

[0236] The driving portion DP may generate charging signals SG1 and SG2. The charging signals SG1 and SG2 may include a first charging signal SG1 and a second charging signal SG2. The phase of the second charging signal SG2 may be opposite to the phase of the first charging signal SG1. For example, each of the first charging signal SG1 and the second charging signal SG2 may be a sinusoidal signal. However, the present disclosure is not limited thereto. Each of the first charging signal SG1 and the second charging signal SG2 may be a square wave signal.

[0237] The plurality of pad portions may include a plurality of third pads PD3 (eg, reference Figure 7 ). The first charging signal SG1 may be applied to at least one of the third pad portions. The sensor driving unit 200C may transmit the first charging signal SG1 to one auxiliary electrode 230-1 among the plurality of auxiliary electrodes 230.

[0238] The second charge signal SG2 may be applied to at least another pad portion among the third pad portion. The sensor driving unit 200C may transmit the second charge signal SG2 to another auxiliary electrode 230 - 2 among the plurality of auxiliary electrodes 230 .

[0239] One auxiliary electrode 230-1 and another auxiliary electrode 230-2 may be spaced apart from each other, with at least one of the other auxiliary electrodes in the plurality of auxiliary electrodes 230 interposed therebetween. The sensor driving unit 200C may control the size of the charging loop by adjusting the distance (e.g., space) between one auxiliary electrode 230-1 and another auxiliary electrode 230-2.

[0240] When the first charging signal SG1 and the second charging signal SG2 have opposite phases to each other, noise caused by the first charging signal SG1 in the display layer 100 can be offset by noise caused by the second charging signal SG2. Therefore, a flicker phenomenon may not occur in the display layer 100. As a result, the display quality of the display layer 100 can be improved.

[0241] When the first charging signal SG1 and the second charging signal SG2 are applied to at least two third pads PD3 (eg, reference Figure 7 ), a current path in which current RFS flows to at least one third pad through at least another third pad may be formed. In addition, because the first charging signal SG1 and the second charging signal SG2 have opposite phases to each other, the direction of the current RFS may change periodically.

[0242] The current path may be in the shape of a coil. In this case, the current path may be referred to as a "single direct loop path." Thus, in charging mode, the resonant circuit of the pen PN may be charged by the current path.

[0243] The charging mode may include a search charging mode and a tracking charging mode.

[0244] In the search charge mode, since there may be a state where the position of the pen PN is not sensed, the first charge signal SG1 or the second charge signal SG2 may be sequentially provided to all channels included in the sensor layer 200. For example, the first charge signal SG1 or the second charge signal SG2 may be sequentially scanned in the first direction DR1. In other words, the entire active area 200A of the sensor layer 200 (for example, referring to FIG. 2 ) may be scanned in the search charge mode. Figure 7 ).

[0245] When the pen PN is sensed in the search charge mode, the sensor layer 200 may be driven in the tracking charge mode. For example, in the tracking charge mode, the sensor driving unit 200C may output the first charging signal SG1 and the second charging signal SG2 to an area overlapping with the point where the pen PN is sensed, rather than to the entire sensor layer 200.

[0246] Therefore, after the position of the pen PN is sensed, the channel corresponding to the position of the pen PN in the immediately previous frame and driven in the charging drive mode can be limited. Therefore, in the charging drive mode, the channel overlapping with the area where the pen PN is not located can be not driven. Therefore, the efficiency of the charging drive can be improved.

[0247] Figure 17 A second mode of the sensor layer and the sensor driving unit according to an embodiment of the present disclosure is shown.

[0248] refer to Figure 5 、 Figure 13 、 Figure 15 and Figure 17 In the charging mode, the first switch SW1 connected to the 2-1st pad portion PD-1 of the sensor driving unit 200C may not be connected to the ground GND and the 2-2nd pad portion PD-2. The second switch SW2 connected to the 2-2nd pad portion PD-2 may not be connected to the driving part DP and the sensing part SP.

[0249] The plurality of first electrodes 210 and the plurality of second electrodes 220 may be electrically floated. Therefore, the current RFS may not flow to the plurality of first electrodes 210 and the plurality of second electrodes 220.

[0250] Figure 18 A second mode of the sensor layer and the sensor driving unit according to an embodiment of the present disclosure is shown. Figure 19A is a graph showing current sensed from the first channel. Figure 19B is a graph showing the current obtained from the differential pair of the first channel. Figure 18 In the above reference Figure 14A Components that are the same or substantially the same (or similar) as those described are denoted by the same reference numerals / numbers, and thus, redundant descriptions thereof may not be repeated.

[0251] refer to Figure 5 、 Figure 12 and Figures 18 to 19B In the sensing mode of the second mode MD2, when the RLC resonant circuit of the pen PN discharges the charged charge, current may flow to the coil of the inductor L. A magnetic field may be formed by the current. The pen PN may emit a magnetic field having a resonant frequency.

[0252] By the magnetic field provided from the pen PN, a first induced current I1 may be generated on the plurality of first electrodes 210 and the plurality of auxiliary electrodes 230. The first induced current I1 may be formed in a direction opposite to (eg, opposite to) a direction of current flow.

[0253] In a plan view, the first induced current I1 may be formed in the second direction DR2 on the first electrode 210 and the auxiliary electrode 230 located on the left side relative to the pen PN. The first induced current I1 may be formed in a direction away from (e.g., opposite to) the second direction DR2 on the first electrode 210 and the auxiliary electrode 230 located on the right side relative to the pen PN.

[0254] As the distance from the pen PN increases, the magnitude of the first induced current I1 may decrease. When the pen PN is provided in a direction parallel to or substantially parallel to the third direction DR3 without being tilted, the magnitude of the first induced current I1 may be horizontally symmetrical or substantially horizontally symmetrical with respect to the position of the pen PN.

[0255] Coupling capacitors Ccp may be formed between the plurality of first electrodes 210 and the plurality of auxiliary electrodes 230, respectively. The first sensing currents I1 formed on the plurality of auxiliary electrodes 230 may be transmitted to the plurality of first electrodes 210, respectively, through the coupling capacitors Ccp. The sensor driving unit 200C may receive a first sensing signal PRX1 based on the first sensing current I1.

[0256] In the sensing mode, the sensor driving unit 200C may receive a first sensing signal PRX1 transferred through capacitive coupling of the coupling capacitor Ccp between the plurality of first electrodes 210 and the plurality of auxiliary electrodes 230 .

[0257] The plurality of pad portions connected to the plurality of first pads PD1 (eg, reference Figure 7 ) may be respectively connected to the plurality of sensing parts SP.

[0258] Each of the plurality of sensing parts SP may receive a first sensing signal PRX1. The sensor driving unit 200C may calculate a sensing current for each channel or for a differential channel by using the first sensing signal PRX1. The sensing current may correspond to the first sensing signal PRX1. This will be described in more detail below.

[0259] In pen sensing mode, the first end of each of the plurality of auxiliary electrodes 230 can be floating. Coupling between the plurality of first electrodes 210 and the plurality of auxiliary electrodes 230 can maximize or increase compensation for the first sensing signal PRX1. Furthermore, the second end of each of the plurality of auxiliary electrodes 230 can be grounded or floating. Thus, the first sense current I1 of the plurality of auxiliary electrodes 230 can be fully transmitted to the plurality of first electrodes 210.

[0260] Each of the plurality of first electrodes 210 may be referred to as a "first channel". The directions of the first sense currents I1 sensed from the first channels spaced apart from each other and with the pen positioning portion interposed therebetween may be different. The direction of the current flowing to the first channel located on the left side relative to the position of the pen PN may be different from the direction of the current flowing to the first channel located on the right side relative to the position of the pen PN. Therefore, the sensor drive unit 200C can sense currents flowing in different directions relative to the position of the pen PN. The sensor drive unit 200C can calculate the coordinates based on the zero-crossing value PT1a of the sensing current graph for each channel.

[0261] As another example, the sensor drive unit 200C can sense current by performing differential sensing on channels adjacent to each other among a plurality of first channels, or performing differential sensing on channels spaced apart from each other among a plurality of first channels. For example, the sensed current can be obtained by performing differential sensing on the Nth first electrode and the N+2th first electrode, where N is a natural number greater than 0, but the present disclosure is not limited thereto. According to an embodiment of the present disclosure, the numbering of the first electrodes as targets of differential sensing is not limited thereto. For example, the Nth first electrode and the N+3th first electrode can be targets of differential sensing, where N is a natural number greater than 0. The sensor drive unit 200C can calculate the coordinates based on the peak PT2a of the sensed current graph for each differential channel.

[0262] Figure 20 A second mode of the sensor layer and the sensor driving unit according to an embodiment of the present disclosure is shown. Figure 21A is a graph showing the current sensed from the second channel. Figure 21B is a graph showing the current obtained from the differential pair of the second channel. Figure 20 In the above reference Figure 13Components that are the same or substantially the same (or similar) as those described are denoted by the same reference numerals / numbers, and thus, redundant descriptions thereof may not be repeated.

[0263] refer to Figure 12 and Figures 20 to 21B In the sensing mode of the second modes MD2 and MD2-d, when the RLC resonant circuit of the pen PN discharges the charged charge, current may flow to the coil of the inductor L. A magnetic field may be formed by the current. The pen PN may emit a magnetic field having a resonant frequency.

[0264] The magnetic field provided by the pen PN may generate a second induced current I2 on the plurality of second electrodes 220. The second induced current I2 may be formed in a direction opposite to (eg, opposite to) a direction in which current flows.

[0265] In a plan view, the second induced current I2 may be formed on the second electrode 220 located on the upper side relative to the pen PN in the first direction DR1. The second induced current I2 may be formed on the second electrode 220 located on the lower side relative to the pen PN in a direction away from (e.g., opposite to) the first direction DR1.

[0266] As the distance from the pen PN increases, the magnitude of the second induced current I2 may decrease. When the pen PN is provided in a direction parallel to or substantially parallel to the third direction DR3 without the pen PN being tilted, the magnitude of the second induced current I2 may be vertically symmetrical or substantially vertically symmetrical with respect to the position of the pen PN.

[0267] The second sensing current I2 formed on the plurality of second electrodes 220 may be transmitted to the sensor driving unit 200C. The sensor driving unit 200C may receive a second sensing signal PRX2 based on the second sensing current I2.

[0268] In the sensing mode, the sensor driving unit 200C may directly receive the current of the second sensing signal PRX2 .

[0269] The sensor driving unit 200C may receive a second sensing signal PRX2 based on the second sensing current I2. The sensor driving unit 200C may receive a second sensing signal PRX2 based on the first sensing signal PRX1 (eg, reference signal PRX2). Figure 18 ) and / or the second sensing signal PRX2 to detect the coordinates of the pen PN.

[0270] In the sensing mode of each of the second mode MD2-d and the second mode MD2, the first switch SW1 may be connected to the 2-1st pad portion PD-1 and the ground GND, and the second switch SW2 may be connected to the 2-2nd pad portion PD-2 and the sensing portion SP.

[0271] The sensing portion SP may receive the second sensing signal PRX2. The sensor driving unit 200C may calculate a sensing current for each channel or for a differential channel by using the second sensing signal PRX2. The sensing current may correspond to the second sensing signal PRX2. This will be described in more detail below.

[0272] Each of the plurality of second electrodes 220 may be referred to as a "second channel". The directions of the second sense currents I2 sensed from the second channels spaced apart from each other and with the pen positioning portion interposed therebetween may be different. The direction of the current flowing to the second channel located on the upper side relative to the position of the pen PN may be different from the direction of the current flowing to the second channel located on the lower side relative to the position of the pen PN. Therefore, the sensor drive unit 200C can sense currents flowing in directions different from each other relative to the position of the pen PN. The sensor drive unit 200C may calculate the coordinates based on the zero-crossing value PT1b of the sensing current graph for each channel.

[0273] As another example, the sensor drive unit 200C can sense the current by performing differential sensing on channels adjacent to each other among a plurality of second channels, or performing differential sensing on channels spaced apart from each other among a plurality of second channels. For example, the sensed current can be obtained by performing differential sensing on the Nth second electrode and the N+2th second electrode, where N is a natural number greater than 0, but the present disclosure is not limited thereto. According to an embodiment of the present disclosure, the numbering of the second electrodes as targets of differential sensing is not limited thereto. For example, the Nth second electrode and the N+3th second electrode can be used as targets of differential sensing, where N is a natural number greater than 0. The sensor drive unit 200C can calculate the coordinates based on the peak PT2b of the sensed current graph for each differential channel.

[0274] refer to Figure 7 、 Figure 18 and Figure 20 In the sensing mode, the sensor driving unit 200C may receive a first sensing signal PRX1 transmitted through capacitive coupling of the coupling capacitor Ccp between the plurality of first electrodes 210 and the plurality of auxiliary electrodes 230. In other words, the first sensing signal PRX1 may be sensed through a capacitive-assisted loop structure of the plurality of first electrodes 210 and the plurality of auxiliary electrodes 230.

[0275] In the sensing mode, the sensor driving unit 200C may directly receive the current of the second sensing signal PRX2 from the plurality of second electrodes 220. In other words, the second sensing signal PRX2 may be sensed through a direct loop structure of the plurality of second electrodes 220.

[0276] Therefore, the horizontal and vertical coordinates of the pen PN can be sensed separately by using different loop structures.

[0277] The sensor layer 200 according to an embodiment of the present disclosure may have both a capacitive auxiliary loop structure and a direct loop structure. For example, a short axis having a relatively short first length W1 may be formed by the plurality of first electrodes 210 and the plurality of auxiliary electrodes 230 in the capacitive auxiliary loop structure, and a long axis having a relatively long second length W2 may be formed by the plurality of second electrodes 220 in the direct loop structure.

[0278] The strength of the second sensing signal PRX2 sensed from the direct loop structure may be different from the strength of the first sensing signal PRX1 sensed from the capacitance assisted loop structure.

[0279] According to the present disclosure, in the direct loop structure, since the sensor driving unit 200C directly receives the second sensing signal PRX2 from each of the plurality of second electrodes 220, the intensity of the second sensing signal PRX2 can be greater than the intensity of the first sensing signal PRX1. Compared with the case where all sensing electrodes of the sensor layer are implemented in a capacitance-assisted loop structure, the pen sensing bandwidth of the sensor layer 200 can be improved. Therefore, an electronic device 1000 (for example, referring to FIG. 1 ) with improved pen sensing reliability can be provided. Figure 1A ).

[0280] In the comparative example, assuming that both the short axis and the long axis are formed in a direct loop structure, since the number of switches SW1 and SW2 included in the sensor drive unit 200C is increased by up to two times or more, the number of pads of the ball grid array (BGA) may increase, resulting in an increase in the size of the integrated circuit (IC). However, according to some embodiments of the present disclosure, one of the short axis and the long axis may be formed in a direct loop structure, and the other may be formed in a capacitor-assisted loop structure. Therefore, the increase in the IC size of the sensor drive unit 200C can be minimized or reduced. In other words, an electronic device 1000 (for example, referring to Figure 1A ).

[0281] refer to Figure 12 、 Figure 18 and Figure 20 , in the sensing mode of the second mode MD2 , the first sensing signal PRX1 and the second sensing signal PRX2 may be used to sense the coordinates of the pen PN.

[0282] During the second mode MD2-d, the sensor layer 200 may be scanned and driven to detect the second input 3000. In the sensing mode of the second mode MD2-d, the sensor driving unit 200C may focus on detection of the pen PN using only the second sensing signal PRX2.

[0283] According to some embodiments of the present disclosure, in the second mode MD2-d, the first sensing signal PRX1 may not be used to detect the pen PN, and only the second sensing signal PRX2 may be used to detect the pen PN. In other words, the amount of calculation of the sensor driving unit 200C can be relatively reduced. Therefore, an electronic device 1000 (for example, referring to FIG. 1 ) with reduced power consumption can be provided. Figure 1A ).

[0284] According to some embodiments of the present disclosure, since the intensity of the second sensing signal PRX2 can be higher than the intensity of the first sensing signal PRX1, it is easier to determine whether the second sensing signal PRX2 generated by the pen PN is transmitted to the sensor driving unit 200C. Even when the pen PN is hovering, the sensor driving unit 200C can more easily detect the second sensing signal PRX2. Therefore, an electronic device 1000 (e.g., referring to FIG. 1 ) with improved sensing reliability can be provided. Figure 1A ).

[0285] When the pen PN is detected by the second sensing signal PRX2 , the sensor driving unit 200C may operate in the third operation mode DMD3 .

[0286] Figure 22 is a plan view showing a sensor layer according to an embodiment of the present disclosure. Figure 22 In the above reference Figure 7 Components that are the same or substantially the same (or similar) as those described are denoted by the same reference numerals / numbers, and thus, redundant descriptions thereof may not be repeated.

[0287] refer to Figure 22 , the sensor layer 200 - 1 may further include a charging trace 230 t - 1 and a plurality of third pads PD3 disposed in the peripheral area 200NA.

[0288] The charging trace 230t-1 may include a first line portion 231t extending in the first direction DR1 and electrically connected to the auxiliary electrode 230, a second line portion 232t extending from a first end of the first line portion 231t in the second direction DR2, and a third line portion 233t extending from a second end of the first line portion 231t in the second direction DR2.

[0289] For example, Figure 22 The charging trace 230t-1 shown may be defined as the trace 230rt2 of the 3-2nd circuit not included in the above reference. Figure 7 The traces in the depicted charging trace 230t.

[0290] Figure 23FIG. 2 shows a second mode of the sensor layer and the sensor driving unit according to an embodiment of the present disclosure. Figure 23 In the above reference Figure 15 Components that are the same or substantially the same (or similar) as those described are denoted by the same reference numerals / numbers, and thus, redundant descriptions thereof may not be repeated.

[0291] refer to Figure 22 and Figure 23 , in the charging mode, the sensor driving unit 200C may transmit the charging signals SG1 and SG2 to the sensor layer 200 - 1 .

[0292] The second pad portions among the plurality of pad portions may be respectively connected to the plurality of second pads PD2. The second pads among the plurality of second pads PD2 connected to the first end of each of the plurality of second electrodes 220 may be connected to the 2-1st pad portion PD-1. The second pads among the plurality of second pads PD2 connected to the second end of each of the plurality of second electrodes 220 may be connected to the 2-2nd pad portion PD-2.

[0293] In the charging mode, the first switch SW1 connected to the 2-1st pad portion PD-1 of the sensor driving unit 200C may be connected to the ground GND, and the second switch SW2 connected to the 2-2nd pad portion PD-2 may be connected to the driving portion DP.

[0294] The driving part DP may generate charging signals SG1 and SG2. The charging signals SG1 and SG2 may include a first charging signal SG1 and a second charging signal SG2. The phase of the second charging signal SG2 may be opposite to the phase of the first charging signal SG1.

[0295] The sensor driving unit 200C may transmit the first charge signal SG1 to one second electrode 220 - 1 among the plurality of second electrodes 220 , and may transmit the second charge signal SG2 to another second electrode 220 - 2 among the plurality of second electrodes 220 .

[0296] The second electrode 220-1 and the second electrode 220-2 may be spaced apart from each other with at least one of the other electrodes of the plurality of second electrodes 220 interposed therebetween. Figure 232 shows a shape in which the second electrode 220-1 and the second electrode 220-2 are spaced apart from each other and the two second electrodes 220 are interposed therebetween as an example. However, the present disclosure is not limited thereto. According to an embodiment of the present disclosure, the number of second electrodes 220 disposed between the second electrode 220-1 and the second electrode 220-2 is not limited thereto. The sensor drive unit 200C can control the size of the charging loop by adjusting the number of second electrodes 220 disposed between the second electrode 220-1 and the second electrode 220-2.

[0297] The first current RFSa may flow on the second electrode 220 - 1 by the second charging signal SG2 .

[0298] The second current RFSb may flow on the second electrode 220 - 2 by the first charge signal SG1 .

[0299] The current path of the first current RFSa and the current path of the second current RFSb can be in the shape of a coil. Therefore, in charging mode, the resonant circuit of the pen PN can be charged by the current path. The current path of the first current RFSa can be called the "inner loop", and the current path of the second current RFSb can be called the "outer loop".

[0300] In the charging mode, a first distance DS1 between the second electrode 220-1 and the second electrode 220-2 in the second direction DR2 may be greater than a second distance DS2 between one of the plurality of second traces 220t connected to the second electrode 220-1 and another of the plurality of second traces 220t connected to the second electrode 220-2 in the first direction DR1. For example, the first distance DS1 may be 4 mm (millimeters) to 20 mm. The second distance DS2 may be 100 μm (micrometers) to 900 μm.

[0301] According to some embodiments of the present disclosure, the sensor driving unit 200C may more easily drive the sensor layer 200 - 1 by using the first switch SW1 and the second switch SW2 according to a mode. Therefore, the electronic device 1000 having improved reliability may be provided.

[0302] When the first charging signal SG1 and the second charging signal SG2 have opposite phases to each other, noise caused by the first charging signal SG1 in the display layer 100 can be offset by noise caused by the second charging signal SG2. Therefore, a flicker phenomenon may not occur in the display layer 100. Therefore, the display quality of the display layer 100 can be improved.

[0303] Figure 24 FIG. 2 shows a second mode of the sensor layer and the sensor driving unit according to an embodiment of the present disclosure. Figure 24 In the above reference Figure 20 Components that are the same or substantially the same (or similar) as those described are denoted by the same reference numerals / numbers, and thus, redundant descriptions thereof may not be repeated.

[0304] refer to Figure 24 In the sensing mode of each of the second mode MD2-d and the second mode MD2, the first switch SW1 may connect the 2-1st pad portion PD-1 and the voltage supply unit to each other. For example, the first switch SW1 may be connected to supply a reference voltage Vref to the 2-1st pad portion PD-1. The reference voltage Vref may have a suitable voltage level (e.g., a given or predetermined voltage level).

[0305] The second switch SW2 may be connected to the 2-2 th pad portion PD- 2 and the sensing portion SP.

[0306] The reference voltage Vref may be provided to the second input terminal of the amplifier AMP. The second input terminal of the amplifier AMP and the first switch SW1 may have the same or substantially the same voltage level as each other.

[0307] Figure 25 FIG. 2 shows a second mode of the sensor layer and the sensor driving unit according to an embodiment of the present disclosure. Figure 25 In the above reference Figure 20 Components that are the same or substantially the same (or similar) as those described are denoted by the same reference numerals / numbers, and thus, redundant descriptions thereof may not be repeated.

[0308] refer to Figure 25 , the second sensing current I2 formed on the plurality of second electrodes 220 may be transmitted to the sensor driving unit 200C. The sensor driving unit 200C may receive second sensing signals PRX2a and PRX2b based on the second sensing current I2. The second sensing signals PRX2a and PRX2b may include a 2-1st sensing signal PRX2a and a 2-2nd sensing signal PRX2b.

[0309] The 2-1st sensing signal PRX2a may be output through the first end E1 of each of the plurality of second electrodes 220 , and the 2-2nd sensing signal PRX2b may be output through the second end E2 of each of the plurality of second electrodes 220 , which is spaced apart from the first end in the first direction DR1 .

[0310] The sensor drive unit 200C may include a plurality of sensing parts (e.g., a plurality of sensors or a plurality of sensing circuits) SPa. Each of the plurality of sensing parts SPa may include an amplifier AMPa and a plurality of capacitors CAP1 and CAP2. A first input terminal of the amplifier AMPa may be connected to the 2-1st pad portion PD-1. A second input terminal of the amplifier AMPa may be connected to the 2-2nd pad portion PD-2. A signal output through the output terminal of the amplifier AMPa may be filtered. The filtered signal may then be converted into a digital signal.

[0311] The first capacitor CAP1 may be connected between the first input terminal and the output terminal. The second capacitor CAP2 may be connected between the second input terminal and the output terminal.

[0312] The 2-1st sensing signal PRX2a may be provided to a first input terminal of the amplifier AMPa. The 2-2nd sensing signal PRX2b may be provided to a second input terminal of the amplifier AMPa.

[0313] Each of the plurality of sensing parts SPa may receive the 2-1st sensing signal PRX2a and the 2-2nd sensing signal PRX2b and may amplify a difference between the 2-1st sensing signal PRX2a and the 2-2nd sensing signal PRX2b.

[0314] The sensor driving unit 200C may be configured to generate a first sensing signal PRX1 (eg, a reference signal PRX2). Figure 18 ) and / or the second sensing signals PRX2a and PRX2b to detect the coordinates of the pen PN.

[0315] According to some embodiments described above, because the plurality of second electrodes can have a direct loop structure and the sensor drive unit can directly receive a second sensing signal from each of the plurality of second electrodes, the strength of the second sensing signal can be greater than the strength of the first sensing signal, which is based on capacitive coupling and is received from the plurality of first electrodes having a capacitive-assisted loop structure. Compared to a case where all sensing electrodes of the sensor layer are implemented with a capacitive-assisted loop structure, the pen sensing bandwidth of the sensor layer can be improved. Therefore, an electronic device with improved pen sensing reliability can be provided.

[0316] According to some embodiments described above, one of the short axis and the long axis can be formed into a direct loop structure, and the other can be formed into a capacitive assisted loop structure. Therefore, the increase in the IC size of the sensor drive unit can be minimized or reduced. Thus, an electronic device with improved space efficiency can be provided.

[0317] The electronic devices or electrical devices and / or any other related devices or components according to the embodiments of the present disclosure described herein can be implemented using any appropriate hardware, firmware (e.g., application specific integrated circuits), software, or a combination of software, firmware, and hardware. For example, the various components of these devices can be formed on an integrated circuit (IC) chip or on separate IC chips. In addition, the various components of these devices can be implemented on a flexible printed circuit film, a tape carrier package (TCP), a printed circuit board (PCB), or formed on a substrate. In addition, the various components of these devices can be processes or threads running on one or more processors in one or more computing devices, executing computer program instructions and interacting with other system components for performing the various functions described herein. The computer program instructions are stored in a memory that can be implemented in a computing device using, for example, a standard storage device, such as a random access memory (RAM). The computer program instructions can also be stored, for example, in other non-transitory computer-readable media, such as a CD-ROM, a flash drive, etc. In addition, those skilled in the art will recognize that, without departing from the spirit and scope of the exemplary embodiments of the present disclosure, the functions of the various computing devices can be combined or integrated into a single computing device, or the functions of a particular computing device can be distributed to one or more other computing devices.

[0318] The foregoing illustrates some embodiments of the present disclosure and should not be interpreted as limiting thereof. Although some embodiments have been described, it will be readily understood by those skilled in the art that various modifications can be made in the embodiments without departing from the spirit and scope of the present disclosure. It will be understood that, unless otherwise described, the description of the features or aspects within each embodiment should generally be considered to be applicable to other similar features or aspects in other embodiments. Therefore, as will be apparent to those of ordinary skill in the art, unless otherwise specifically indicated, the features, characteristics and / or elements described in conjunction with a particular embodiment can be used alone or in combination with the features, characteristics and / or elements described in conjunction with other embodiments. Therefore, it will be understood that the foregoing illustrates various exemplary embodiments and should not be interpreted as being limited to the specific embodiments disclosed herein, and that various modifications to the disclosed embodiments and other exemplary embodiments are intended to be included within the spirit and scope of the present disclosure as defined in the appended claims and their equivalents.

Claims

1. Electronic devices, including: Display layer; a sensor layer on the display layer; as well as a sensor driver configured to drive the sensor layer, Wherein, the sensor layer comprises: a plurality of first electrodes, each extending in a first direction; a plurality of second electrodes, each extending in a second direction intersecting the first direction; and a plurality of auxiliary electrodes, each extending in the first direction and insulated from the plurality of second electrodes, wherein the sensor driver is configured to operate in a first mode for sensing touch or a second mode for sensing an external input device, The second mode includes a charging mode and a sensing mode. wherein, in the first mode, the sensor driver is configured to electrically connect the first end and the second end of each of the plurality of second electrodes to each other and transmit a driving signal to each of the plurality of second electrodes, and Wherein, in the sensing mode, the sensor driver is configured to receive a first sensing signal through the second electrode.

2. The electronic device according to claim 1, wherein Each of the plurality of auxiliary electrodes includes at least one pattern electrode, and Wherein, in a plan view, each of the plurality of first electrodes surrounds the pattern electrode of a corresponding auxiliary electrode among the plurality of auxiliary electrodes.

3. The electronic device according to claim 1, wherein An area of each of the plurality of first electrodes is smaller than an area of each of the plurality of second electrodes.

4. The electronic device according to claim 1, wherein In a plan view, a length of each of the plurality of first electrodes in the first direction is smaller than a length of each of the plurality of second electrodes in the second direction.

5. The electronic device according to claim 1, wherein The plurality of auxiliary electrodes are electrically connected to each other. The electronic device according to claim 1 , wherein: The sensor driver is configured to directly receive the current of the first sensing signal in the sensing mode, and The sensor driver is configured to receive, in the sensing mode, a second sensing signal transmitted by capacitive coupling between the plurality of first electrodes and the plurality of auxiliary electrodes.

7. The electronic device according to claim 6, wherein: The intensity of the first sensing signal is greater than the intensity of the second sensing signal.

8. The electronic device according to claim 1, wherein The sensor driver includes: a driving part configured to generate the driving signal and the charging signal; Sensing circuitry, including an analog front end; a voltage providing circuit configured to provide a voltage having a voltage level; a first pad portion electrically connected to the first end; a second pad portion electrically connected to the second end; a first switch connecting the first pad portion to the voltage supply circuit or connecting the first pad portion to the second pad portion; and The second switch connects the second pad portion to the driving portion or connects the second pad portion to the sensing circuit.

9. The electronic device according to claim 8, wherein: The sensing circuit is configured to operate in a single-ended mode.

10. The electronic device according to claim 8, wherein The sensing circuit is configured to operate in a differential mode.

11. The electronic device according to claim 8, wherein: In the first mode, the first switch is configured to be connected to the first pad portion and the second pad portion, and the second switch is configured to be connected to the second pad portion and the driving portion.

12. The electronic device according to claim 8, wherein In the charging mode, the sensor driver is configured to transmit a first charging signal to one of the plurality of auxiliary electrodes and to transmit a second charging signal to another auxiliary electrode of the plurality of auxiliary electrodes.

13. The electronic device according to claim 12, wherein: The phase of the first charging signal is opposite to the phase of the second charging signal.

14. The electronic device according to claim 12, wherein: During the charging mode, the plurality of second electrodes are configured to float.

15. The electronic device according to claim 12, wherein: The one auxiliary electrode of the plurality of auxiliary electrodes and the other auxiliary electrode of the plurality of auxiliary electrodes are spaced apart from each other with at least one of the other auxiliary electrodes of the plurality of auxiliary electrodes located therebetween.

16. The electronic device according to claim 8, wherein In the charging mode, the first switch is configured to be connected to the first pad portion and the voltage supply circuit, the second switch is configured to be connected to the second pad portion and the driving portion, a first charging signal is configured to be transmitted to one second electrode among the plurality of second electrodes, and a second charging signal is configured to be transmitted to another second electrode among the plurality of second electrodes.

17. The electronic device according to claim 16, wherein: The phase of the first charging signal is opposite to the phase of the second charging signal.

18. The electronic device according to claim 16, wherein: The one second electrode among the plurality of second electrodes and the other second electrode among the plurality of second electrodes are spaced apart from each other, with at least one of the other second electrodes among the plurality of second electrodes located therebetween.

19. The electronic device according to claim 18, wherein: The sensor layer includes an active area and a peripheral area adjacent to the active area. wherein the plurality of first electrodes, the plurality of second electrodes and the plurality of auxiliary electrodes are located in the active area, and The sensor layer further includes a plurality of sensing lines located in the peripheral region and respectively connected to the plurality of second electrodes.

20. The electronic device according to claim 19, wherein In the charging mode, a first distance in the first direction between the one second electrode among the multiple second electrodes and the other second electrode among the multiple second electrodes is greater than a second distance in the second direction between one sensing line among the multiple sensing lines connected to the one second electrode among the multiple second electrodes and another sensing line among the multiple sensing lines connected to the other second electrode among the multiple second electrodes.

21. Electronic devices, including: Display layer; a sensor layer on the display layer; as well as a sensor driver configured to drive the sensor layer, Wherein, the sensor layer comprises: a plurality of first electrodes, each extending in a first direction; a plurality of second electrodes, each extending in a second direction intersecting the first direction; and a plurality of auxiliary electrodes, each extending in the first direction and insulated from the plurality of second electrodes, wherein the sensor driver is configured to operate in a charging mode or a sensing mode, wherein in the charging mode, the sensor driver is configured to transmit a first charging signal to one of the plurality of auxiliary electrodes and to transmit a second charging signal to another auxiliary electrode of the plurality of auxiliary electrodes, wherein, in the sensing mode, the sensor driver is configured to directly receive the current of the first sensing signal from the plurality of second electrodes; and Wherein, in the sensing mode, the sensor driver is configured to receive a second sensing signal transmitted by capacitive coupling between the plurality of first electrodes and the plurality of auxiliary electrodes.

22. The electronic device according to claim 21, wherein Each of the plurality of auxiliary electrodes includes at least one pattern electrode, and Wherein, in a plan view, each of the plurality of first electrodes surrounds the pattern electrode of a corresponding auxiliary electrode among the plurality of auxiliary electrodes.

23. The electronic device according to claim 21, wherein An area of each of the plurality of first electrodes is smaller than an area of each of the plurality of second electrodes.

24. The electronic device according to claim 21, wherein In a plan view, a length of each of the plurality of first electrodes in the first direction is smaller than a length of each of the plurality of second electrodes in the second direction.

25. The electronic device according to claim 21, wherein The plurality of auxiliary electrodes are electrically connected to each other.

26. The electronic device according to claim 21, wherein The intensity of the first sensing signal is greater than the intensity of the second sensing signal.

27. The electronic device according to claim 21, wherein The phase of the first charging signal is opposite to the phase of the second charging signal.

28. The electronic device according to claim 21, wherein During the charging mode, the plurality of second electrodes are configured to float.

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