Electronic device

Abstract

An electronic device is disclosed. An electronic device includes a sensor layer and a sensor driver. The sensor layer includes a plurality of first sensing electrodes, a plurality of first electrodes, a plurality of second sensing electrodes, a plurality of second electrodes, and a plurality of lines. The plurality of lines includes: a first line electrically connected to one of the plurality of second sensing electrodes and in the first peripheral area; and a second line electrically connected to another one of the plurality of second sensing electrodes and in the second peripheral region, in which, in a pen sensing mode in which an input of the pen is sensed, the sensor driver is configured to apply a first weight value to a first sensing signal received from the first line, and apply a second weight value to a second sensing signal received from the second line, and apply a second weight value different from the first weight value to a second sensing signal received from the second line.

Description

[0001] Cross Reference to Related Applications

[0002] This application claims priority to and the benefit of Korean Patent Application No. 10-2023-0149722, filed on November 2, 2023, in the Korean Intellectual Property Office, the entire disclosure of which is incorporated herein by reference. TECHNICAL FIELD

[0003] Aspects of some embodiments of the disclosure described herein relate to an electronic device capable of sensing an input of a pen. BACKGROUND

[0004] Various multimedia electronic devices such as televisions, mobile phones, tablet personal computers (tablet PCs), notebook computers, navigation systems, game consoles, etc. can include a display device that displays an image. In addition to a general input method such as a button, a keyboard, a mouse, etc., such a multimedia electronic device can include a sensor layer (or an input sensor) capable of providing a touch-based input mechanism that allows a user to input information or a command relatively easily and intuitively. The sensor layer can sense a touch or a pressure of a user. Meanwhile, for a user who is accustomed to inputting information by using a writing tool or for a specific application (e.g., an application for sketching or drawing), the need for a fine touch input using a pen is increasing.

[0005] The above information disclosed in this Background section is only for enhancing the understanding of the background of the disclosure, and therefore, it can not necessarily constitute prior art. SUMMARY

[0006] Aspects of some embodiments of the disclosure include an electronic device capable of sensing an input of a pen.

[0007] According to some embodiments of the disclosure, an electronic device includes a sensor layer defined with a peripheral area having a first peripheral area and a second peripheral area, and a main area between the first peripheral area and the second peripheral area, and a sensor driver configured to drive the sensor layer, wherein the sensor layer includes a plurality of first sensing electrodes arranged along a first direction, a plurality of first electrodes arranged along the first direction and respectively overlapped with the plurality of first sensing electrodes, a plurality of second sensing electrodes arranged along a second direction crossing the first direction, and a plurality of lines in the peripheral area and including a first line electrically connected to one of the plurality of second sensing electrodes and in the first peripheral area, a second line electrically connected to another of the plurality of second sensing electrodes and in the second peripheral area, a third line connected to a first end of one of the plurality of first electrodes, and a fourth line connected to a second end of the one of the plurality of first electrodes, wherein, in a charging driving mode to generate a magnetic field for charging a pen, the sensor driver is further configured to apply a first signal to the third line and a second signal different from the first signal to the fourth line at a first time, and wherein, in a pen sensing mode to sense an input of the pen, the sensor driver is further configured to apply a first weight value to a first sensing signal received from the first line and a second weight value to a second sensing signal received from the second line.

[0008] According to some embodiments, each of the first weight value and the second weight value can be at least one of a gain and a weight.

[0009] According to some embodiments, the sensor driver can be further configured to drive the sensor layer in a pre-pen sensing driving mode, and in the pre-pen sensing driving mode, the sensor driver can be further configured to determine at least one of a gain and a weight applied to the first sensing signal and the second sensing signal.

[0010] According to some embodiments, the sensor driver can include a charging voltage amplifier electrically connected to at least one of the plurality of second sensing electrodes, and a resistor and a capacitor connectable to an input terminal and an output terminal of the charging voltage amplifier, and the sensor driver can be further configured to adjust a gain by changing at least one of the resistor and the capacitor.

[0011] According to some embodiments, the sensor driver can include an analog-to-digital converter electrically connected to at least one of the plurality of second sensing electrodes, and the sensor driver can be further configured to apply a weight to a digital signal output from the analog-to-digital converter.

[0012] According to some embodiments, the main area can include a plurality of sub-areas defined along the first direction, and the sensor driver can be further configured to drive the sensor layer in a pre-pen sensing driving mode, and to detect, in the pre-pen sensing driving mode, an active area of the sensor layer corresponding to the input from among the plurality of sub-areas corresponding to the pen position, according to the input.

[0013] According to some embodiments, the sensor driver can be further configured to adjust at least one of a gain and a weight applied to at least one of the first sensing signal and the second sensing signal, according to a position of the active area.

[0014] According to some embodiments, the main area can include a first outer sub-area, a central sub-area, and a second outer sub-area defined along the first direction, wherein the sensor driver can be further configured to control a first gain applied to the first sensing signal to be equal to a second gain applied to the second sensing signal, based on the active area corresponding to the central sub-area, and wherein the sensor driver can be further configured to control a first weight applied to the first sensing signal to be equal to a second weight applied to the second sensing signal, based on the active area corresponding to the central sub-area.

[0015] According to some embodiments, the sensor driver can be further configured to control the first gain applied to the first sensing signal to be different from the second gain applied to the second sensing signal, based on the active area corresponding to the first outer sub-area or the second outer sub-area.

[0016] According to some embodiments, the sensor driver can be further configured to control the first weight applied to the first sensing signal to be different from the second weight applied to the second sensing signal, based on the active area corresponding to the first outer sub-area or the second outer sub-area.

[0017] According to some embodiments, the one of the plurality of second sensing electrodes can include a first portion and a second portion, and the first portion can be closer to the first line than the second portion, wherein, in a pen sensing mode in which an input of a pen is sensed, based on detecting the input from the pen at the first portion, the sensor driver can be further configured to receive, from the first line, a first induced current induced by a magnetic field generated from the pen, based on detecting the input from the pen at the second portion, the sensor driver can be further configured to receive, from the first line, a second induced current induced by the magnetic field generated from the pen, and wherein an intensity of the first induced current can be different from an intensity of the second induced current.

[0018] According to some embodiments, the second weight value can be different from the first weight value.

[0019] According to some embodiments of the disclosure, an electronic device can include a sensor layer defined with a main area and a peripheral area, and a sensor driver configured to drive the sensor layer, wherein the sensor layer can include a plurality of first sensing electrodes arranged along a first direction, a plurality of first electrodes disposed along the first direction and respectively overlapping the plurality of first sensing electrodes, a plurality of second sensing electrodes arranged along a second direction crossing the first direction, and a plurality of lines in the peripheral area and including a first line electrically connected to one of the plurality of second sensing electrodes, a second line electrically connected to a first end of one of the plurality of first electrodes, and a third line electrically connected to a second end of the one of the plurality of first electrodes, wherein the one of the plurality of second sensing electrodes includes a first portion and a second portion, and the first portion is closer to the first line than the second portion, wherein, in a charging driving mode to generate a magnetic field for charging a pen, the sensor driver is further configured to apply a first signal to the second line and a second signal different from the first signal to the third line at a first time, and wherein, in a pen sensing mode to sense an input of the pen, based on detecting the input from the pen at the first portion, the sensor driver is further configured to apply a first weight value to a signal received from the first line, and based on detecting the input from the pen at the second portion, the sensor driver is further configured to apply a second weight value to the signal received from the first line.

[0020] According to some embodiments, each of the first weight value and the second weight value can be at least one of a gain and a weight.

[0021] According to some embodiments, the sensor driver can be further configured to drive the sensor layer in a pre-pen sensing driving mode, and in the pre-pen sensing driving mode, the sensor driver can be further configured to determine the at least one of the gain and the weight applied to the signal.

[0022] According to some embodiments, the main area can include a first outer partition area, a central partition area, and a second outer partition area which can be defined in the first direction, wherein the plurality of lines can further include a fourth line electrically connected to another one of the plurality of second sensing electrodes, wherein the main area can be between the first line and the fourth line, wherein the sensor driver can be further configured to receive a first sensing signal from the one of the second sensing electrodes and a second sensing signal from the another one of the second sensing electrodes, and wherein, based on an active area of the sensor layer corresponding to the input being located in the central partition area, a first gain applied to the first sensing signal can be equal to a second gain applied to the second sensing signal, and a first weight applied to the first sensing signal can be equal to a second weight applied to the second sensing signal.

[0023] According to some embodiments, the first gain can be different from the second gain, or the first weight can be different from the second weight, based on the active area being located in the first outer partition area or the second outer partition area.

[0024] According to some embodiments, in a pen sensing mode in which input of a pen is sensed, based on detecting input from the pen at the first portion, the sensor driver can be further configured to receive a first induced current from the first line induced by a magnetic field generated from the pen, and based on detecting input from the pen at the second portion, the sensor driver can be further configured to receive a second induced current from the first line induced by a magnetic field generated from the pen, and wherein the strength of the first induced current can be different from the strength of the second induced current.

[0025] According to some embodiments, the strength of the first induced current can be greater than the strength of the second induced current.

[0026] According to some embodiments, the second weight value can be different from the first weight value.

[0027] According to some embodiments of the present disclosure, in a method of driving an electronic device, the electronic device includes a sensor layer defining a sensing area for detecting a pen including an RLC resonance circuit, and including a plurality of sensing electrodes extending in a first direction and disposed along a second direction intersecting the first direction and located in the sensing area, and a sensor driver configured to drive the sensor layer, the method including, in a pre-pen sensing driving mode before detecting the pen: receiving a first sensing signal from one of the plurality of sensing electrodes; receiving a second sensing signal from another of the plurality of sensing electrodes; and applying a first weight value to the first sensing signal and a second weight value to the second sensing signal, and in a pen sensing driving mode after detecting the pen: receiving a third sensing signal from the one of the plurality of sensing electrodes; receiving a fourth sensing signal from the another of the plurality of sensing electrodes; applying a third weight value to the third sensing signal and a fourth weight value different from the third weight value to the fourth sensing signal.

[0028] According to some embodiments, each of the first weight value, the second weight value, the third weight value, and the fourth weight value can be at least one of a gain and a weight.

[0029] According to some embodiments, the method can further include, in the pre-pen sensing driving mode, receiving a signal from the sensor layer; detecting an active area corresponding to input within the sensing area based on the signal; and adjusting the at least one of the gain and the weight based on a location of the active area.

[0030] According to some embodiments, the sensing area can be defined with a first outer partition area, a central partition area, and a second outer partition area which can be defined in the first direction, and the method further includes determining a position of the active area among the first outer partition area, the central partition area, and the second outer partition area.

[0031] According to some embodiments, the method can further include adjusting a first gain applied to the third sensing signal and a second gain applied to the fourth sensing signal to be different from each other, based on the active area being in the first outer partition area or the second outer partition area.

[0032] According to some embodiments, the method can further include adjusting a first weight applied to the third sensing signal and a second weight applied to the fourth sensing signal to be different from each other, based on the active area being in the first outer partition area or the second outer partition area.

[0033] According to some embodiments, the second weight value can be equal to the first weight value.

[0034] According to some embodiments of the disclosure, an electronic device includes a sensor layer defined with a main area and a peripheral area, and a sensor driver configured to drive the sensor layer, wherein the sensor layer includes a plurality of first sensing electrodes arranged along a first direction, a plurality of first electrodes arranged along the first direction and respectively overlapping the plurality of first sensing electrodes, a plurality of second sensing electrodes arranged along a second direction crossing the first direction, and a plurality of lines in the peripheral area and including a first line electrically connected to one of the plurality of second sensing electrodes, a second line electrically connected to a first end of one of the plurality of first electrodes, and a third line electrically connected to a second end of the one of the first electrodes, wherein the one of the second sensing electrodes includes a first portion and a second portion, and the first portion is closer to the first line than the second portion, wherein, in a charging driving mode in which a magnetic field for charging a pen is generated, the sensor driver is further configured to apply a first signal to the second line and a second signal different from the first signal to the third line at a first time, wherein, in a pen sensing mode in which an input of the pen is sensed, based on detecting the input from the pen at the first portion, the sensor driver is further configured to receive a first induced current from the magnetic field generated from the pen from the first line, based on detecting the input from the pen at the second portion, the sensor driver is further configured to receive a second induced current from the magnetic field generated from the pen from the first line, and wherein an intensity of the first induced current is different from an intensity of the second induced current.

[0035] According to some embodiments, the intensity of the first induced current can be greater than the intensity of the second induced current.

[0036] According to some embodiments, in the pen sensing mode in which the input of the pen is sensed, based on detecting the input from the pen at the first portion, the sensor driver can be further configured to apply a first weight value to the first sensing signal including the first induced current, and based on detecting the input from the pen at the second portion, the sensor driver can be further configured to apply a second weight value different from the first weight value to the second sensing signal including the second induced current.

[0037] According to some embodiments, each of the first weight value and the second weight value can be at least one of a gain and a weight, and wherein the sensor driver can be further configured to drive the sensor layer in a pre-pen sensing driving mode, and in the pre-pen sensing driving mode, the sensor driver can be further configured to determine at least one of the gain and the weight applied to at least one of the first sensing signal and the second sensing signal.

[0038] According to some embodiments, the main area can be defined with a first outer partition area, a central partition area, and a second outer partition area which can be defined in the first direction, wherein the plurality of lines can further include a fourth line electrically connected to another second sensing electrode of the plurality of second sensing electrodes, wherein the main area can be between the first line and the fourth line, wherein the sensor driver can be further configured to receive the first sensing signal from the one second sensing electrode and the second sensing signal from the another second sensing electrode, and wherein based on the active area of the sensor layer corresponding to the input being located in the central partition area, the first gain applied to the first sensing signal can be equal to the second gain applied to the second sensing signal, and the first weight applied to the first sensing signal can be equal to the second weight applied to the second sensing signal.

[0039] According to some embodiments, based on the active area being located in the first outer partition area or the second outer partition area, the first gain can be different from the second gain, or the first weight can be different from the second weight.

[0040] According to some embodiments of the disclosure, an electronic device includes a sensor layer defined with a peripheral area having a first peripheral area and a second peripheral area, and a main area between the first peripheral area and the second peripheral area, and a sensor driver configured to drive the sensor layer, wherein the sensor layer includes a plurality of first sensing electrodes arranged along a first direction, a plurality of first electrodes arranged along the first direction and respectively overlapped with the plurality of first sensing electrodes, a plurality of second sensing electrodes arranged along a second direction crossing the first direction, and a plurality of lines in the peripheral area and including a first line electrically connected to one of the plurality of second sensing electrodes and in the first peripheral area, a second line electrically connected to another of the plurality of second sensing electrodes and in the second peripheral area, a third line connected to a first end of one of the plurality of first electrodes, and a fourth line connected to a second end of one of the plurality of first electrodes, and wherein a first signal is transmitted from the sensor driver to the third line and a second signal different from the first signal is transmitted from the sensor driver to the fourth line, or a first sensing signal is transmitted from the first line to the sensor driver and a second sensing signal is transmitted from the second line to the sensor driver.

[0041] According to some embodiments, the sensor driver can include a charging voltage amplifier electrically connected to at least one of the plurality of second sensing electrodes, and a resistor and a capacitor connected to an input terminal and an output terminal of the charging voltage amplifier, and wherein the sensor driver can be further configured to change at least one of the resistor and the capacitor.

[0042] According to some embodiments, the sensor driver can include an analog-to-digital converter electrically connected to at least one of the plurality of second sensing electrodes.

[0043] According to some embodiments, the main area can include a plurality of division areas defined along the first direction, and wherein an induced current caused by an input of a pen can be transmitted from an active area corresponding to the input to the sensor driver.

[0044] According to some embodiments, the main area can include a first outer division area, a central division area, and a second outer division area defined along the first direction, and wherein the active area can be located in one of the central division area, the first outer division area, and the second outer division area.

[0045] According to some embodiments, one of the plurality of second sensing electrodes can include a first portion and a second portion, and the first portion can be closer to the first line than the second portion, and wherein a first induced current caused by the input of the pen at the first portion can be transmitted to the sensor driver, and a second induced current different from the first induced current caused by the input at the second portion can be transmitted to the sensor driver.

[0046] According to some embodiments of the disclosure, an electronic device includes a sensor layer defining a main area and a peripheral area, and a sensor driver configured to drive the sensor layer, wherein the sensor layer includes a plurality of first sensing electrodes arranged along a first direction, a plurality of first electrodes arranged along the first direction and respectively overlapping the plurality of first sensing electrodes, a plurality of second sensing electrodes arranged along a second direction crossing the first direction, and a plurality of lines in the peripheral area and including a first line electrically connected to one of the plurality of second sensing electrodes, a second line electrically connected to a first end of one of the plurality of first electrodes, and a third line electrically connected to a second end of the one of the first electrodes, wherein the one of the second sensing electrodes includes a first portion and a second portion, and the first portion is closer to the first line than the second portion, and wherein a first signal is transmitted from the sensor driver to the second line and a second signal different from the first signal is transmitted from the sensor driver to the third line, or an induced current caused by an input of a pen detected at the first portion or the second portion is transmitted to the sensor driver.

[0047] According to some embodiments, the main area can include a first outer partition area, a central partition area, and a second outer partition area defined in the first direction, wherein the plurality of lines can further include a fourth line electrically connected to another one of the plurality of second sensing electrodes, wherein the main area can be between the first line and the fourth line, wherein a first sensing signal can be transmitted from the one of the second sensing electrodes to the sensor driver and a second sensing signal can be transmitted from the another one of the second sensing electrodes to the sensor driver, and wherein an active area corresponding to the input can be located in one of the central partition area, the first outer partition area, and the second outer partition area.

[0048] According to some embodiments, a first induced current caused by the input at the first portion can be transmitted to the sensor driver, and a second induced current different from the first induced current caused by the input at the second portion can be transmitted to the sensor driver.

[0049] According to some embodiments of the disclosure, an electronic device includes a sensor layer defined with a main area and a peripheral area, and a sensor driver configured to drive the sensor layer, wherein the sensor layer includes a plurality of first sensing electrodes arranged along a first direction, a plurality of first electrodes arranged along the first direction and respectively overlapping the plurality of first sensing electrodes, a plurality of second sensing electrodes arranged along a second direction crossing the first direction, and a plurality of lines in the peripheral area and including a first line electrically connected to one of the plurality of second sensing electrodes, a second line electrically connected to a first end of one of the plurality of first electrodes, and a third line electrically connected to a second end of the one of the first electrodes, wherein the one of the second sensing electrodes includes a first portion and a second portion, and the first portion is closer to the first line than the second portion, and wherein a first induced current caused by an input of a pen at the first portion is transmitted to the sensor driver and a second induced current different from the first induced current caused by the input at the second portion is transmitted to the sensor driver.

[0050] According to some embodiments, the main area can be defined with a first outer partition area, a central partition area, and a second outer partition area defined in the first direction, wherein the plurality of lines can further include a fourth line electrically connected to another one of the plurality of second sensing electrodes, wherein the main area can be between the first line and the fourth line, wherein the first sensing signal can be transmitted to the sensor driver from the one of the second sensing electrodes and the second sensing signal can be transmitted to the sensor driver from the another one of the second sensing electrodes, and wherein an active area corresponding to the input of the pen can be located in one of the central partition area, the first outer partition area, and the second outer partition area. BRIEF DESCRIPTION OF DRAWINGS

[0051] Aspects of some embodiments of the disclosure are described in greater detail by reference to the accompanying drawings.

[0052] Figure 1A is a perspective view of an electronic device according to some embodiments of the disclosure.

[0053] Figure 1B is a rear perspective view of an electronic device according to some embodiments of the disclosure.

[0054] Figure 2 is a perspective view of an electronic device according to some embodiments of the disclosure.

[0055] Figure 3 is a schematic cross-sectional view of a display panel according to some embodiments of the disclosure.

[0056] Figure 4is a block diagram for describing an operation of an electronic device according to some embodiments of the disclosure.

[0057] Figure 5 is a cross-sectional view of a display panel according to some embodiments of the disclosure.

[0058] Figure 6 is a plan view of a sensor layer according to some embodiments of the disclosure.

[0059] Figure 7 is an enlarged plan view of one sensing unit according to some embodiments of the disclosure.

[0060] Figure 8A is a plan view illustrating a first conductive layer of a sensing unit according to some embodiments of the disclosure.

[0061] Figure 8B is a plan view illustrating a second conductive layer of a sensing unit according to some embodiments of the disclosure.

[0062] Figure 9 is a cross-sectional view of a sensor layer taken along a line I-I' shown in Figure 8A and Figure 8B .

[0063] Figure 10A is an enlarged plan view of an area AA' shown in Figure 8A .

[0064] Figure 10B is an enlarged plan view of an area BB' shown in Figure 8B .

[0065] Figure 11 is a graph illustrating an operation of a sensor driver according to some embodiments of the disclosure.

[0066] Figure 12A is a graph illustrating an operation of a sensor driver according to some embodiments of the disclosure.

[0067] Figure 12B is a graph illustrating an operation of a second mode according to some embodiments of the disclosure.

[0068] Figure 13 is a graph for describing a first mode according to some embodiments of the disclosure.

[0069] Figure 14 is a graph for describing a second mode, particularly a charging driving mode, according to some embodiments of the disclosure.

[0070] Figure 15Ais a graph showing a waveform of a first signal according to some embodiments of the present disclosure.

[0071] Figure 15B is a graph showing a waveform of a second signal according to some embodiments of the present disclosure.

[0072] Figure 16 is a graph showing a partition area according to some embodiments of the present disclosure.

[0073] Figure 17 is a graph for describing a second mode, particularly a pre-pen sensing driving mode, according to some embodiments of the present disclosure.

[0074] Figure 18 is a graph showing a sensor driver according to some embodiments of the present disclosure.

[0075] Figure 19 is a graph showing a sensor driver according to some embodiments of the present disclosure.

[0076] Figure 20 is a graph showing a sensor driver according to some embodiments of the present disclosure.

[0077] Figure 21 is a graph showing a sensor driver according to some embodiments of the present disclosure.

[0078] Figure 22 is a graph showing gain values corresponding to channels according to some embodiments of the present disclosure.

[0079] Figure 23 is a graph showing gain values corresponding to channels according to some embodiments of the present disclosure.

[0080] Figure 24A is a graph for describing a second mode according to some embodiments of the present disclosure.

[0081] Figure 24B is a graph for describing a second mode based on a sensing unit according to some embodiments of the present disclosure.

[0082] Figure 25 is a graph schematically showing four channels according to some embodiments of the present disclosure.

[0083] Figure 26A is an equivalent circuit graph showing a relationship between one channel and a pen according to some embodiments of the present disclosure.

[0084] Figure 26B is an equivalent circuit graph showing a relationship between one channel and a pen according to some embodiments of the present disclosure.

[0085] Figure 27 is a graph schematically showing four channels according to some embodiments of the present disclosure.

[0086] Figure 28A is an equivalent circuit diagram showing a relationship between one channel and a pen according to some embodiments of the present disclosure.

[0087] Figure 28B is an equivalent circuit diagram showing a relationship between one channel and a pen according to some embodiments of the present disclosure.

[0088] Figure 29 is a graph showing a current intensity according to a position of a pen for one channel.

[0089] Figure 30 is a graph showing a sensitivity according to positions of a plurality of channels according to a comparative example.

[0090] Figure 31 is a graph showing a sensitivity according to positions of a plurality of channels according to some embodiments of the present disclosure.

[0091] Figure 32 is a graph showing gain values corresponding to channels according to some embodiments of the present disclosure.

[0092] Figure 33 is a graph showing a sensitivity according to positions of a plurality of channels according to some embodiments of the present disclosure.

[0093] Figure 34 is a graph showing a partition region according to some embodiments of the present disclosure.

[0094] Figure 35A is a graph showing currents sensed at a plurality of channels according to some embodiments of the present disclosure.

[0095] Figure 35B is a graph showing currents obtained from differential channels of a plurality of channels according to some embodiments of the present disclosure.

[0096] Figure 35C is a graph for describing a method for identifying a pen position according to some embodiments of the present disclosure. DETAILED DESCRIPTION

[0097] In this specification, the expression that a first part (or region, layer, part, portion, etc.) is "on" a second part, "connected with" or "coupled with" the second part means that the first part is directly on, directly connected with, or directly coupled with the second part, or means that a third part is interposed between the first part and the second part.

[0098] The same reference numbers are used throughout the drawings to refer to same components. Also, in the drawings, the thickness, ratio, and size of components are exaggerated for effective description of the technical content. The term "and / or" includes one or more combinations of the related elements defined therein.

[0099] Although the terms "first", "second", and the like can be used to describe various components, these components should not be construed as being limited by these terms. The terms are only used to distinguish one component from another. For example, a first component could be termed a second component, and, similarly, a second component could be termed a first component without departing from the scope and spirit of the disclosure. The articles "a", "an", and "the" are singular in number, but the use of the singular form in the specification should not exclude the presence of more than one referring object.

[0100] In addition, the terms "under", "below", "on", "above", and the like are used to describe the relationship between components shown in the drawings. The conceptually relative terms are described based on the direction shown in the drawings.

[0101] It will be understood that the terms "include", "comprise", "have", and the like, specify the presence of features, numbers, steps, operations, elements, or components described in the specification, but do not exclude the possibility of the presence or addition of one or more other features, numbers, steps, operations, elements, or components.

[0102] Unless otherwise defined, all terms used in the specification, including technical terms and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which the disclosure belongs. In addition, terms such as defined in a commonly used dictionary should be interpreted in accordance with the meaning consistent with the context in the relevant field, and unless explicitly defined herein, should not be interpreted in an idealized or overly formal sense.

[0103] The terms "part" and "unit" mean a software component or a hardware component that performs a specific function. For example, the hardware component can include a field programmable gate array (FPGA) or an application specific integrated circuit (ASIC). The software component can refer to executable code in an addressable storage medium and / or data used by the executable code. Accordingly, the software component can be, for example, an object-oriented software component, a class component, and a task component, and can include a process, a function, a property, a procedure, a subroutine, a program code segment, a driver, firmware, microcode, a circuit, data, a database, a data structure, a table, an array, or a variable.

[0104] Hereinafter, aspects of some embodiments of the disclosure will be described in more detail with reference to the accompanying drawings.

[0105] Figure 1Ais a perspective view of an electronic device 1000 according to some embodiments of the disclosure. Figure 1B is a rear perspective view of an electronic device 1000 according to some embodiments of the disclosure.

[0106] Referring to Figure 1A and Figure 1B , the electronic device 1000 can be a device configured to be activated based on or according to an electrical signal. For example, the electronic device 1000 can be configured to display an image and can be configured to sense an input (e.g., an external input) applied from the outside (e.g., from an external device or object). The external input can be a user's input. The user's input can include various types of external input such as a part of a user's body (e.g., a user's finger), a pen (or stylus) PN, light, heat, and / or pressure.

[0107] The electronic device 1000 can include a first display panel DP1 and a second display panel DP2. The first display panel DP1 and the second display panel DP2 can be panels that are separate from each other. For example, as described in more detail below, the first display panel DP1 and the second display panel DP2 can be located at opposite sides of the electronic device 1000. The first display panel DP1 can be referred to as a "main display panel". The second display panel DP2 can be referred to as an "auxiliary display panel" or an "external display panel". According to some embodiments, as described in more detail below, when the electronic device 1000 is in a folded state, the first display panel DP1 can be located at an inner side of the electronic device 1000 such that different non-folded areas of the first display panel DP1, which are at opposite sides of a folding area of the first display panel DP1, face each other in the folded state. According to some embodiments, when the electronic device 1000 is in the folded state, the second display panel DP2 can be located at a side of the electronic device 1000 that faces the outside.

[0108] The first display panel DP1 can include a first display unit DA1-F (e.g., as shown in Figure 1A ) and a peripheral area NDA at a periphery of the first display unit DA1-F. The second display panel DP2 can include a second display unit DA2-F (e.g., as shown in Figure 1B ). An area of the second display panel DP2 can be smaller than an area of the first display panel DP1. An area of the first display unit DA1-F can be greater than an area of the second display unit DA2-F so as to correspond to a size of the first display panel DP1 and a size of the second display panel DP2.

[0109] When the electronic device 1000 is unfolded, the first display unit DA1-F can have a plane parallel (or substantially parallel) to a plane defined by the first direction DR1 and the second direction DR2. A thickness direction of the electronic device 1000 can be parallel to a third direction DR3 that intersects the first direction DR1 and the second direction DR2. Accordingly, a front surface (or an upper surface) and a rear surface (or a lower surface) of components constituting the electronic device 1000 can be defined with respect to the third direction DR3.

[0110] The first display panel DP1 or the first display unit DA1-F can include a folding area FA configured to be folded and unfolded (e.g., without damaging the electronic device 1000) and a plurality of non-folding areas NFA1 and NFA2 spaced apart from each other with the folding area FA therebetween. The second display panel DP2 can overlap one of the plurality of non-folding areas NFA1 and NFA2. For example, the second display panel DP2 can overlap the first non-folding area NFA1.

[0111] A display direction of the first image IM1a displayed in a portion (e.g., the first non-folding area NFA1) of the first display panel DP1 can be opposite to a display direction of the second image IM2a displayed in the second display panel DP2. For example, the first image IM1a can be displayed in the third direction DR3, and the second image IM2a can be displayed in a fourth direction DR4 that is opposite to the third direction DR3.

[0112] According to some embodiments of the disclosure, the folding area FA can be curved based on (e.g., around) a folding axis extending in a direction parallel to a long side of the electronic device 1000 (e.g., the second direction DR2). When the electronic device 1000 is folded, the folding area FA has a curvature and a radius of curvature (e.g., a set curvature and a set radius of curvature or a predetermined curvature and a predetermined radius of curvature). The first non-folding area NFA1 and the second non-folding area NFA2 can face each other, and the electronic device 1000 can be folded inwardly such that the first display unit DA1-F is not exposed to the outside.

[0113] According to some embodiments of the disclosure, the electronic device 1000 can be folded outwardly such that the first display unit DA1-F is exposed to the outside. According to some embodiments of the disclosure, in an unfolded state, the electronic device 1000 can be folded inwardly and outwardly, but embodiments of the disclosure are not limited thereto.

[0114] Figure 1AA folding area FA is shown as being defined in the electronic device 1000, but embodiments according to the present disclosure are not limited thereto. For example, a plurality of folding axes and a plurality of folding areas corresponding to the plurality of folding axes can be defined in the electronic device 1000. The electronic device 1000 can be folded inwardly or outwardly in a state in which each of the plurality of folding areas is unfolded.

[0115] According to some embodiments of the present disclosure, at least one of the first display panel DP1 and the second display panel DP2 can be configured to sense an input of the pen PN even when it does not include a digitizer. Thus, because a digitizer for sensing the pen PN can be omitted, an increase in thickness of the electronic device 1000, an increase in weight of the electronic device 1000, or a decrease in flexibility of the electronic device 1000 due to the addition of the digitizer can not occur. Thus, not only the first display panel DP1 but also the second display panel DP2 can be designed to sense the pen PN.

[0116] Figure 2 is a perspective view of an electronic device 1000-1 according to some embodiments of the present disclosure.

[0117] Figure 2 It is shown that the electronic device 1000-1 is a mobile phone, and the electronic device 1000-1 can include a display panel DP.

[0118] According to some embodiments of the present disclosure, the display panel DP can be configured to sense an input (e.g., an external input) applied from the outside. The external input can be an input of a user. The input of the user can include various types of external inputs such as a part of the user's body (e.g., the user's finger), a pen PN (see Figure 1A ), light, heat, or pressure.

[0119] According to some embodiments of the present disclosure, the display panel DP can be configured to sense an input of the pen PN even when it does not include a digitizer. Thus, because a digitizer for sensing the pen PN can be omitted, an increase in thickness and weight of the electronic device 1000-1 due to the addition of the digitizer can not occur.

[0120] Figure 1A It is shown that the electronic device 1000 is of a foldable type, and Figure 2 It is shown that the electronic device 1000-1 is of a bar (or non-foldable or flat or slab) type. However, embodiments according to the present disclosure described in more detail below are not limited thereto. For example, the description described below can be applied to various electronic devices such as an electronic device of a rollable type, an electronic device of a slidable type, and an electronic device of a stretchable type.

[0121] Figure 3is a schematic cross-sectional view of a display panel DP according to some embodiments of the disclosure.

[0122] Referring to Figure 3 , the display panel DP can include a display layer 100 and a sensor layer 200.

[0123] The display layer 100 can be a component that substantially generates an image or displays an image. The display layer 100 can be a light-emitting display layer. For example, the display layer 100 can be an organic light-emitting display layer, an inorganic light-emitting display layer, an organic-inorganic light-emitting display layer, a quantum dot display layer, a micro-LED display layer, or a nano-LED display layer. The display layer 100 can include a base layer 110, a circuit layer 120, a light-emitting element layer 130, and an encapsulation layer 140.

[0124] The base layer 110 can be a means of providing a base surface on which the circuit layer 120 is located. The base layer 110 can include a multi-layer structure or a single-layer structure. The base layer 110 can be a glass substrate, a metal substrate, a silicon substrate, or a polymer substrate, but is not particularly limited thereto according to embodiments of the disclosure.

[0125] The circuit layer 120 can be located on the base layer 110. The circuit layer 120 can include an insulating layer, a semiconductor pattern, a conductive pattern, and a signal line. The insulating layer, the semiconductor layer, and the conductive layer can be formed on the base layer 110 in a manner such as coating, evaporation, etc. Then, the insulating layer, the semiconductor layer, and the conductive layer can be selectively patterned by performing a photolithography process multiple times.

[0126] The light-emitting element layer 130 can be located on the circuit layer 120. The light-emitting element layer 130 can include a light-emitting element. For example, the light-emitting element layer 130 can 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.

[0127] The encapsulation layer 140 can be located on the light-emitting element layer 130. The encapsulation layer 140 can protect the light-emitting element layer 130 from foreign substances or contaminants such as moisture, oxygen, and dust particles.

[0128] The sensor layer 200 can be located on the display layer 100. The sensor layer 200 can sense an external input applied from the outside. The sensor layer 200 can be an integrated sensor that is continuously formed during a manufacturing process of the display layer 100, or can be an external sensor attached to the display layer 100. In the disclosure, the sensor layer 200 can be referred to as a sensor, an input sensing layer, an input sensing panel, or an electronic device for sensing an input coordinate.

[0129] According to some embodiments of the disclosure, the sensor layer 200 can sense both input from a passive input source such as a body of a user and input of an input device (e.g., an active input source) for generating a magnetic field of a resonance frequency (e.g., a set or predetermined resonance frequency). The input device can be referred to as a "pen", an "input pen", a "magnetic pen", a "touch pen", or an "electromagnetic resonance pen".

[0130] Figure 4 is a block diagram for describing an operation of the electronic device 1000 according to some embodiments of the disclosure.

[0131] Referring to Figure 4 , the electronic device 1000 can include a display layer 100, a sensor layer 200, a display driver 100C (e.g., a first driver circuit), a sensor driver 200C (e.g., a second driver circuit), a main driver 1000C (e.g., a third circuit), and a power supply circuit 1000P.

[0132] The sensor layer 200 can sense a first input 2000 or a second input 3000 (e.g., an external input from an external source) applied from the outside. Each of the first input 2000 and the second input 3000 can be an input method or an input source capable of providing a change in capacitance of the sensor layer 200, or can be an input method capable of inducing an induced current in the sensor layer 200. For example, the first input 2000 can be a passive input method such as a body (e.g., a finger of a user) of a user. The second input 3000 can be an input of a pen PN or an input of an RFIC tag. For example, the pen PN can be a passive pen or an active pen.

[0133] According to some embodiments of the disclosure, the pen PN can be a device generating a magnetic field of a resonance frequency (e.g., a set or predetermined resonance frequency). The pen PN can be configured to transmit an output signal based on an electromagnetic resonance method. The pen PN can be referred to as an "input device", an "input pen", a "magnetic pen", a "touch pen", or an "electromagnetic resonance pen".

[0134] The pen PN can include an RLC resonance circuit, and the RLC resonance circuit can include an inductor L and a capacitor C. According to some embodiments of the disclosure, the RLC resonance circuit can be a variable resonance circuit that changes a resonance frequency. In this case, the inductor L can be a variable inductor and / or the capacitor C can be a variable capacitor, but embodiments of the disclosure are not particularly limited thereto.

[0135] The inductor L generates a current by forming a magnetic field in the sensor layer 200. However, embodiments according to the present disclosure are not particularly limited thereto. For example, when the pen PN operates as an active type input device, the pen PN can generate a current even when the pen PN does not receive a magnetic field from the outside. The generated current is transferred to the capacitor C. The capacitor C is charged with the current input from the inductor L, and discharges the charged current to the inductor L. Then, the inductor L can emit a magnetic field at a resonance frequency. An induced current can flow in the sensor layer 200 by the magnetic field emitted by the pen PN, and the induced current can be transferred to the sensor driver 200C as a reception signal (or a sensing signal).

[0136] The main driver 1000C can control overall operations of the electronic device 1000. For example, the main driver 1000C can control operations of the display driver 100C and the sensor driver 200C. The main driver 1000C can include at least one microprocessor, and can further include a graphic controller. The main driver 1000C can be referred to as an "application processor", a "central processing unit", or a "main processor".

[0137] The display driver 100C can drive the display layer 100. The display driver 100C can receive image data and a control signal from the main driver 1000C. The control signal can include various signals. For example, the control signal can include an input vertical synchronization signal, an input horizontal synchronization signal, a main clock signal, and a data enable signal.

[0138] The sensor driver 200C can drive the sensor layer 200. The sensor driver 200C can receive a control signal from the main driver 1000C. The control signal can include a clock signal of the sensor driver 200C. In addition, the control signal can further include a mode determination signal for determining an operation mode of the sensor driver 200C and the sensor layer 200.

[0139] The sensor driver 200C can be implemented as an integrated circuit (IC), and can be electrically connected to the sensor layer 200. For example, the sensor driver 200C can be directly mounted in a region (e.g., a set or predetermined region) of the display panel DP, or mounted on a separate printed circuit board in a chip on film (COF) method to be electrically connected to the sensor layer 200.

[0140] The sensor driver 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 of sensing a touch input (e.g., a first input 2000). The second mode can be a mode of sensing an input of the pen PN (e.g., a 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".

[0141] The transition between the first mode and the second mode can be implemented in various ways. For example, the sensor driver 200C and the sensor layer 200 can be driven in a time-division method in the first mode and the second mode, and can sense the first input 2000 and the second input 3000. Alternatively, the transition between the first mode and the second mode can occur due to a selection of a user (e.g., via an interface of the user) or a specific action of the user, the first mode or the second mode can be activated or deactivated by activating or deactivating a specific application, or one mode can be transitioned to the other mode. Alternatively, when operating in the first mode and the second mode alternately, the sensor driver 200C and the sensor layer 200 can remain in the first mode when sensing the first input 2000, or can remain in the second mode when sensing the second input 3000.

[0142] The sensor driver 200C can calculate coordinate information of an input based on a signal received from the sensor layer 200, and can provide a coordinate signal having the coordinate information to the main driver 1000C. The main driver 1000C performs an operation corresponding to an input of the user based on the coordinate signal. For example, the main driver 1000C can operate the display driver 100C so that a new application image is displayed on the display layer 100.

[0143] The power supply circuit 1000P can include a power management integrated circuit (PMIC). The power supply circuit 1000P can generate a plurality of driving voltages for driving the display layer 100, the sensor layer 200, the display driver 100C, and the sensor driver 200C. For example, the plurality of driving voltages can include a gate high voltage, a gate low voltage, a first driving voltage (e.g., an ELVSS voltage), a second driving voltage (e.g., an ELVDD voltage), an initialization voltage, etc., but is not particularly limited thereto according to embodiments of the disclosure.

[0144] Figure 5 is a cross-sectional view of a display panel DP according to some embodiments of the disclosure.

[0145] Referring to Figure 5 At least one buffer layer BFL is formed on an upper surface of the base layer 110. The buffer layer BFL can improve the bonding force between the base layer 110 and the semiconductor pattern. The buffer layer BFL can be formed of a plurality of layers. Alternatively, the display layer 100 can further include a barrier layer. The buffer layer BFL can include at least one of silicon oxide, silicon nitride, and silicon oxynitride. For example, the buffer layer BFL can include a structure in which a silicon oxide layer and a silicon nitride layer are alternately stacked.

[0146] A semiconductor pattern including a source region SC, an active region AL, a drain region DR, and a connection signal line SCL may be located on the buffer layer BFL. The semiconductor pattern may include polycrystalline silicon. However, embodiments of the present disclosure are not limited thereto. For example, the semiconductor pattern may include amorphous silicon, low-temperature polycrystalline silicon, or an oxide semiconductor.

[0147] Figure 5 Only a portion of the semiconductor pattern is shown, and the semiconductor pattern may also be located in another area. The semiconductor pattern may be arranged across pixels according to specific rules. The semiconductor pattern may have different electrical characteristics depending on whether the semiconductor pattern is doped. The semiconductor pattern may include a first region having high conductivity including a source region SC, a drain region DR, and a connection signal line SCL, and a second region having low conductivity including an active region AL. The first region may be doped with an N-type dopant or a P-type dopant. A P-type transistor may include a region doped with a P-type dopant, and an 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.

[0148] Each of the first regions has a greater conductivity than the second region. The first region can essentially function as an electrode or signal line. The second region can actually correspond to the active area AL (or channel) of transistor 100PC. In other words, a portion of the semiconductor pattern can be the active area AL of transistor 100PC; another portion of the semiconductor pattern can be the source region SC or drain region DR of transistor 100PC; and another portion of the semiconductor pattern can be a connection electrode or a connection signal line SCL.

[0149] Each of the pixels can be represented by an equivalent circuit including seven transistors, one capacitor, and a light emitting element, and the equivalent circuit of the pixel can be modified in various forms, and the circuit of the pixel can include additional components or fewer components without departing from the spirit and scope of the embodiments according to the present disclosure. Figure 5 1 shows one transistor 100PC and one light emitting element 100PE included in a pixel.

[0150] The source region SC, the active region AL, and the drain region DR of the transistor 100PC may be formed of a semiconductor pattern. The source region SC and the drain region DR may extend from the active region AL in opposite directions in a cross-sectional view. Figure 5 A portion of the connection signal line SCL formed of a semiconductor pattern is shown in . According to some embodiments, the connection signal line SCL may be connected to the drain region DR of the transistor 100PC in a plan view.

[0151] The first insulating layer 10 can be located on the buffer layer BFL. The first insulating layer 10 can overlap the plurality of pixels in common, and can cover the semiconductor pattern. The first insulating layer 10 can be an inorganic layer and / or an organic layer, and can have a single layer structure or a multi-layer structure. The first insulating layer 10 can include at least one of aluminum oxide, titanium oxide, silicon oxide, silicon nitride, silicon oxynitride, zirconium oxide, and hafnium oxide. According to some embodiments, the first insulating layer 10 can be a silicon oxide layer having a single layer structure. Not only the first insulating layer 10 but also the insulating layer of the circuit layer 120 to be described later in more detail can be an inorganic layer and / or an organic layer, and can have a single layer structure or a multi-layer structure. The inorganic layer can include at least one of the materials described above, but embodiments according to the disclosure are not limited thereto.

[0152] The gate GT of the transistor 100PC is located on the first insulating layer 10. The gate GT can be a part of a metal pattern. The gate GT overlaps the active layer AL. In a process of forming the semiconductor pattern, the gate GT can be used as a mask.

[0153] The second insulating layer 20 is located on the first insulating layer 10 and can cover the gate GT. The second insulating layer 20 can overlap the plurality of pixels in common. The second insulating layer 20 can be an inorganic layer and / or an organic layer, and can have a single layer structure or a multi-layer structure. The second insulating layer 20 can include at least one of silicon oxide, silicon nitride, and silicon oxynitride. According to some embodiments, the second insulating layer 20 can have a multi-layer structure including a silicon oxide layer and a silicon nitride layer.

[0154] The third insulating layer 30 can be located on the second insulating layer 20. The third insulating layer 30 can have a single layer structure or a multi-layer structure. For example, the third insulating layer 30 can have a multi-layer structure including a silicon oxide layer and a silicon nitride layer.

[0155] The first connection electrode CNE1 can be located on the third insulating layer 30. The first connection electrode CNE1 can be connected to the connection signal line SCL through a contact hole CNT-1 passing through the first insulating layer 10, the second insulating layer 20, and the third insulating layer 30.

[0156] The fourth insulating layer 40 can be located on the third insulating layer 30. The fourth insulating layer 40 can be a single silicon oxide layer. The fifth insulating layer 50 can be located on the fourth insulating layer 40. The fifth insulating layer 50 can be an organic layer.

[0157] The second connection electrode CNE2 can be located on the fifth insulating layer 50. The second connection electrode CNE2 can be connected to the first connection electrode CNE1 through a contact hole CNT-2 passing through the fourth insulating layer 40 and the fifth insulating layer 50.

[0158] The sixth insulating layer 60 can be located on the fifth insulating layer 50 and can cover the second connection electrode CNE2. The sixth insulating layer 60 can be an organic layer.

[0159] The light emitting element layer 130 can be located on the circuit layer 120. The light emitting element layer 130 can include the light emitting element 100PE. For example, the light emitting element layer 130 can 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, a description will be given in the case where the light emitting element 100PE is an organic light emitting element, but embodiments according to the present disclosure are not limited thereto.

[0160] The light emitting element 100PE can include a first electrode AE, a light emitting layer EL, and a second electrode CE.

[0161] The first electrode AE can be located on the sixth insulating layer 60. The first electrode AE can be connected to the second connection electrode CNE2 through a contact hole CNT-3 passing through the sixth insulating layer 60.

[0162] The pixel defining layer 70 can be located on the sixth insulating layer 60 and can 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.

[0163] The active area of the electronic device 1000 (see Figure 1A ) can include an emission area PXA and a non-emission area NPXA adjacent to the emission area PXA. The non-emission area NPXA can surround the emission area PXA (e.g., outside the peripheral or cover area of the emission area PXA). According to some embodiments, the emission area PXA is defined to correspond to a partial area of the first electrode AE exposed by the opening 70-OP. For example, according to some embodiments, the first electrode AE can be located within the emission area PXA in a plan view, and can extend into the non-emission area NPXA.

[0164] The light emitting layer EL can be located on the first electrode AE. The light emitting layer EL can be located in an area corresponding to the opening 70-OP. That is, the light emitting layer EL can be individually formed in each of the pixels. When the light emitting layer EL is individually formed in each of the pixels, each of the light emitting layers EL can emit light of at least one color among blue, red, and green. However, embodiments according to the present disclosure are not limited thereto. For example, the light emitting layer EL can be commonly included in a plurality of pixels while having an integral shape. In this case, the light emitting layer EL can provide blue light or white light.

[0165] The second electrode CE can be located on the light emitting layer EL. The second electrode CE can be commonly included in a plurality of pixels while having a unit shape.

[0166] According to some embodiments of the disclosure, a hole control layer can be interposed between the first electrode AE and the light emitting layer EL. The hole control layer can be commonly disposed in the emission area PXA and the non-emission area NPXA. The hole control layer can include a hole transport layer, and can further include a hole injection layer. An electron control layer can be interposed between the light emitting layer EL and the second electrode CE. The electron control layer can include an electron transport layer, and can further include an electron injection layer. The hole control layer and the electron control layer can be commonly formed in a plurality of pixels by using an opening mask or an inkjet process.

[0167] The encapsulation layer 140 can be located on the light emitting element layer 130. The encapsulation layer 140 can include inorganic layers, organic layers, and inorganic layers sequentially stacked, and the layers constituting the encapsulation layer 140 are not limited thereto. The inorganic layer can protect the light emitting element layer 130 from impurities or contaminants such as moisture and oxygen, and the organic layer can protect the light emitting element layer 130 from foreign matter or contaminants such as dust particles. The inorganic layer can include a silicon nitride layer, a silicon oxynitride layer, a silicon oxide layer, a titanium oxide layer, an aluminum oxide layer, or the like. The organic layer can include, but is not limited to, an acrylic-based organic layer.

[0168] The sensor layer 200 can include a base layer 201, a first conductive layer 202, an intermediate insulating layer 203, a second conductive layer 204, and a cover insulating layer 205.

[0169] The base layer 201 can be an inorganic layer including at least one of silicon nitride, silicon oxynitride, and silicon oxide. Alternatively, the base layer 201 can be an organic layer including an epoxy resin, an acrylate resin, or an imide-based resin. The base layer 201 can have a single layer structure, or can have a multi-layer structure stacked in a third direction DR3.

[0170] Each of the first conductive layer 202 and the second conductive layer 204 can have a single layer structure, or can have a multi-layer structure in which layers are stacked in the third direction DR3.

[0171] Each of the first conductive layer 202 and the second conductive layer 204 of the single layer structure can include a metal layer or a transparent conductive layer. The metal layer can include molybdenum, silver, titanium, copper, aluminum, or an alloy thereof. The transparent conductive layer can include a transparent conductive oxide such as indium tin oxide (ITO), indium zinc oxide (IZO), zinc oxide (ZnO), indium zinc tin oxide (IZTO), or the like. In addition, the transparent conductive layer can include a conductive polymer such as poly(3,4-ethylenedioxythiophene) (PEDOT), a metal nanowire, graphene, or the like.

[0172] Each of the first conductive layer 202 and the second conductive layer 204 of the multi-layer structure can include a metal layer. For example, the metal layer can have a three-layer structure of titanium / aluminum / titanium. The conductive layer of the multi-layer structure can include at least one metal layer and at least one transparent conductive layer.

[0173] At least one of the intermediate insulating layer 203 and the cover insulating layer 205 can include an inorganic film. The inorganic film can include at least one of aluminum oxide, titanium oxide, silicon oxide, silicon nitride, silicon oxynitride, zirconium oxide, and hafnium oxide.

[0174] At least one of the intermediate insulating layer 203 and the cover insulating layer 205 can include an organic film. The organic film can include at least one of an acrylate-based resin, a methacrylate-based resin, a polyisoprene, an ethylene-based resin, an epoxy-based resin, a polyurethane-based resin, a cellulose-based resin, a siloxane-based resin, a polyimide-based resin, a polyamide-based resin, and a perylene-based resin.

[0175] Figure 6 is a plan view of the sensor layer 200 according to some embodiments of the disclosure. Figure 7 is an enlarged plan view of one sensing unit SU according to some embodiments of the disclosure. Figure 8A is a plan view illustrating a first conductive layer 202SU of a sensing unit SU according to some embodiments of the disclosure. Figure 8B is a plan view illustrating a second conductive layer 204SU of a sensing unit SU according to some embodiments of the disclosure. Figure 9 is a cross-sectional view of the sensor layer 200 taken along a line I-I' shown in Figure 8A and Figure 8B is a cross-sectional view of the sensor layer 200 taken along a line I-I' shown in

[0176] Referring to Figure 6 , a sensing area 200A and a peripheral area (or a peripheral region) 200NA adjacent to the sensing area 200A (e.g., outside the peripheral or cover region of the sensing area 200A) can be defined in the sensor layer 200.

[0177] The sensor layer 200 can include a plurality of first electrodes 210, a plurality of second electrodes 220, a plurality of third electrodes 230, and a plurality of fourth electrodes 240 located in the sensing area 200A. The first electrodes 210 can be referred to as first sensing electrodes, the second electrodes 220 can be referred to as second sensing electrodes, the third electrodes 230 can be referred to as first electrodes, and the fourth electrodes 240 can be referred to as second electrodes.

[0178] The first electrode 210, the second electrode 220, the third electrode 230, and the fourth electrode 240 can correspond to a main area between a first peripheral area and a second peripheral area in opposite sides (e.g., left and right sides) in Figure 6 . Accordingly, the main area of the sensor layer 200 can be located between the first peripheral area (e.g., left side of the peripheral area 200NA) and the second peripheral area (e.g., right side of the peripheral area 200NA). The main area of the sensor layer 200 can be the sensing area 200A.

[0179] The first electrode 210 can intersect the second electrode 220. Each of the first electrodes 210 can extend in the second direction DR2. The first electrodes 210 can be arranged to be spaced apart from each other in the first direction DR1. Each of the second electrodes 220 can extend in the first direction DR1. The second electrodes 220 can be arranged to be spaced apart from each other in the second direction DR2. The sensing unit SU of the sensor layer 200 can be an area in which one of the first electrodes 210 intersects one of the second electrodes 220.

[0180] Figure 6 Six first electrodes 210 and ten second electrodes 220 are illustrated, and sixty sensing units SU are illustrated. However, the number of the first electrodes 210 and the number of the second electrodes 220 are not limited thereto.

[0181] Referring to Figure 6 and Figure 7 , each of the first electrodes 210 can include first division electrodes 210dv1 and 210dv2. The first division electrodes 210dv1 and 210dv2 can extend in the second direction DR2 and can be spaced apart from each other in the first direction DR1. The first division electrodes 210dv1 and 210dv2 can have a linearly symmetrical shape with respect to a line extending in the second direction DR2.

[0182] Each of the second electrodes 220 can include second division electrodes 220dv1 and 220dv2. The second electrodes 220 extend in the first direction DR1 and can be spaced apart from each other in the second direction DR2. The second division electrodes 220dv1 and 220dv2 can have a linearly symmetrical shape with respect to a line extending in the first direction DR1.

[0183] Referring to Figure 7 , Figure 8A , Figure 8B and Figure 9, each of the second separation electrodes 220dv1 and 220dv2 may include a sensing pattern 221 and a bridge pattern 222. The sensing pattern 221 and the bridge pattern 222 may be located or formed on different layers, and the sensing pattern 221 and the bridge pattern 222 may be electrically connected to each other through a first contact CNa. For example, the bridge pattern 222 may be included in the first conductive layer 202SU. The sensing pattern 221 and the first separation electrodes 210dv1 and 210dv2 may be included in the second conductive layer 204SU. The first conductive layer 202SU may be included in Figure 5 The first conductive layer 202, and the second conductive layer 204SU may include Figure 5 in the second conductive layer 204 .

[0184] Each of the third electrodes 230 may extend in the second direction DR2. The third electrodes 230 may be arranged to be spaced apart from each other in the first direction DR1. According to some embodiments of the present disclosure, each of the third electrodes 230 may include a plurality of first auxiliary electrodes 230s electrically connected in parallel. The number of first auxiliary electrodes 230s included in each of the third electrodes 230 may vary. For example, as the number of first auxiliary electrodes 230s included in each of the third electrodes 230 increases, the resistance of each of the third electrodes 230 may decrease. Therefore, power efficiency may be relatively improved, and sensing sensitivity may be relatively improved. On the other hand, as the number of first auxiliary electrodes 230s included in each of the third electrodes 230 decreases, the loop coil pattern formed by using the third electrodes 230 may be implemented in different forms.

[0185] Figure 6 Although one third electrode 230 is shown to include two first auxiliary electrodes 230s, the present disclosure is not particularly limited thereto. The first auxiliary electrodes 230s may be arranged in one-to-one correspondence with the first electrodes 210. Therefore, one sensing unit SU may include part of one first auxiliary electrode 230s.

[0186] A coupling capacitor may be defined between one first electrode 210 and one first auxiliary electrode 230s. In this case, the current induced when a pen is sensed can be transmitted from the first auxiliary electrode 230s to the first electrode 210 through the coupling capacitor. In other words, the first auxiliary electrode 230s can compensate for the signal transmitted from the first electrode 210 to the sensor driver 200C. Therefore, the maximum effect can be achieved when the phase of the signal induced in the first auxiliary electrode 230s matches the phase of the signal induced in the first electrode 210. Therefore, the center of each of the first electrodes 210 in the first direction DR1 can overlap with the center of each of the first auxiliary electrodes 230s in the first direction DR1.

[0187] According to some embodiments of the present disclosure, since one third electrode 230 includes two first auxiliary electrodes 230s, one third electrode 230 can correspond to (or overlap) two first electrodes 210. Accordingly, the number of first electrodes 210 included in the sensor layer 200 can be greater than the number of third electrodes 230. For example, the number of first electrodes 210 can be equal to the product of the number of third electrodes 230 included in the sensor layer 200 and the number of first auxiliary electrodes 230s included in each of the third electrodes 230. In Figure 6 In the embodiment, the number of first electrodes 210 can be 6, the number of third electrodes 230 can be 3; and the number of first auxiliary electrodes 230s included in each of the third electrodes 230 can be 2, although embodiments according to the present disclosure are not limited thereto, and the number of first electrodes 210, third electrodes 230, and first auxiliary electrodes 230s can vary according to various embodiments.

[0188] The fourth electrodes 240 can be arranged in the second direction DR2, and the fourth electrodes 240 can extend in the first direction DR1. According to some embodiments of the present disclosure, each of the fourth electrodes 240 can include second auxiliary electrodes 240s1 or 240s2 electrically connected to each other. The second auxiliary electrodes 240s1 and 240s2 can be referred to as 2-1 auxiliary electrodes 240s1 and 2-2 auxiliary electrodes 240s2, respectively.

[0189] The wiring directions of the 2-1 auxiliary electrodes 240s1 and the 2-2 auxiliary electrodes 240s2 can be different from each other. Figure 6 Two fourth electrodes 240 and five second auxiliary electrodes 240s1 or 240s2 included in each of the fourth electrodes 240 are illustrated.

[0190] In the present specification, the fact that the wiring directions are different from each other means that the connection positions of the electrodes and the traces (also referred to as lines) are different from each other. For example, a first connection position of a fourth trace 240t-1 electrically connected to a 2-1 auxiliary electrode 240s1 can be different from a second connection position of a fourth trace 240t-2 electrically connected to a 2-2 auxiliary electrode 240s2. The first connection position can be placed at the left end based on the 2-1 auxiliary electrode 240s1. The second connection position can be placed at the right end of the 2-2 auxiliary electrode 240s2.

[0191] Figure 6It is shown that five of the 2-1 sub-electrodes 240s1 are electrically connected to each other, and five of the 2-2 sub-electrodes 240s2 are electrically connected to each other. That is, the area ratio of two fourth electrodes 240 or the number ratio of the second sub-electrodes 240s1 or 240s2 included in each of the two fourth electrodes 240 can have a ratio of 1:1. However, embodiments according to the present disclosure are not particularly limited thereto. For example, according to some embodiments, the number of the 2-1 sub-electrodes 240s1 can be different from the number of the 2-2 sub-electrodes 240s2.

[0192] According to some embodiments of the present disclosure, when each of the fourth electrodes 240 includes the second sub-electrodes 240s1 or 240s2 connected in parallel, the area of one fourth electrode 240 can be increased. In addition, as the resistance of each of the fourth electrodes 240 decreases, the sensing sensitivity of the second input 3000 (see Figure 4 ) can be relatively improved.

[0193] A coupling capacitor can be defined between one second electrode 220 and one 2-1 sub-electrode 240s1. In this case, the current induced when the stylus PN is sensed can be transmitted from the 2-1 sub-electrode 240s1 to the second electrode 220 through the coupling capacitor. In other words, the 2-1 sub-electrode 240s1 can compensate for a signal transmitted from the second electrode 220 to the sensor driver 200C. Accordingly, when the phase of a signal induced in the 2-1 sub-electrode 240s1 matches the phase of a signal induced in the second electrode 220, the maximum effect can be achieved. Therefore, the center of each of the second electrodes 220 in the second direction DR2 can overlap the center of each of the 2-1 sub-electrodes 240s1 in the second direction DR2.

[0194] Referring to Figure 6 , Figure 8A , and Figure 8B , each of the first sub-electrodes 230s included in the third electrode 230 can include a 3-1 pattern 231 and a 3-2 pattern 232. The 3-1 pattern 231 and the 3-2 pattern 232 can be disposed on different layers. The 3-1 pattern 231 and the 3-2 pattern 232 can be electrically connected to each other by a second contact CNb. The 3-1 pattern 231 can be included in the first conductive layer 202SU. The 3-2 pattern 232 can be included in the second conductive layer 204SU.

[0195] According to some embodiments of the present disclosure, a portion of the 3-1 pattern 231 can overlap a portion of each of the first division electrodes 210dv1 and 210dv2. Accordingly, a coupling capacitor can be provided (or formed) between the first electrode 210 and the third electrode 230.

[0196] Referring to Figure 6 , Figure 8A and Figure 8B , the second auxiliary electrode 240s1 or 240s2 included in the fourth electrode 240 can include a 4-1 pattern 241, a 4-2 pattern 242, and a 4-3 pattern 243. The 4-2 pattern 242 and the 4-3 pattern 243 can be disposed on the same layer as each other. The 4-1 pattern 241 can be disposed on a different layer from the 4-2 pattern 242 and the 4-3 pattern 243. The 4-1 pattern 241 and the 4-2 pattern 242 can be electrically connected to each other by a third contact CNc. The 4-1 pattern 241 and the 4-3 pattern 243 can be electrically connected to each other by a fourth contact CNd. The 4-2 pattern 242 and the 4-3 pattern 243 can be included in the first conductive layer 202SU, and the 4-1 pattern 241 can be included in the second conductive layer 204SU.

[0197] According to some embodiments of the disclosure, a portion of the 4-2 pattern 242 can overlap the sensing pattern 221 of each of the second division electrodes 220dv1 and 220dv2. Accordingly, a coupling capacitor can be defined (or disposed / formed) between the second electrode 220 and the fourth electrode 240.

[0198] According to some embodiments of the disclosure, the first conductive layer 202SU can further include dummy patterns DMP. Each of the dummy patterns DMP can be electrically floating or electrically grounded. According to some embodiments of the disclosure, the dummy patterns DMP can be omitted. Alternatively, the dummy patterns DMP can be electrically connected to the first electrode 210 or the second electrode 220.

[0199] The sensor layer 200 can further include a plurality of first traces 210t disposed in the peripheral area 200NA, a plurality of first pads PD1 connected to the first traces 210t in a one-to-one correspondence, a plurality of second traces 220t, and a plurality of second pads PD2 connected to the second traces 220t in a one-to-one correspondence.

[0200] The first traces 210t can be electrically connected to the first electrodes 210 in a one-to-one correspondence. Two first division 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 can include a plurality of branch units to be connected to the two first division electrodes 210dv1 and 210dv2. According to some embodiments of the disclosure, the two first division electrodes 210dv1 and 210dv2 can be connected to each other within the sensing area 200A.

[0201] The second traces 220t can be electrically connected to the second electrodes 220 in a one-to-one corresponding manner. Two second division electrodes 220dv1 and 220dv2 included in one second electrode 220 can be connected to one of the second traces 220t. Each of the second traces 220t can include a plurality of branch units to be connected to the two second division electrodes 220dv1 and 220dv2. According to some embodiments of the present disclosure, the two second division electrodes 220dv1 and 220dv2 can be connected to each other within the sensing area 200A.

[0202] According to some embodiments of the present disclosure, the second electrodes 220 can be classified (or divided) into a first electrode group 220G1 and a second electrode group 220G2. The first electrode group 220G1 and the second electrode group 220G2 can be adjacent in the second direction DR2. Some of the second electrodes 220-1 (hereinafter referred to as "2-1 electrodes") among the second electrodes 220 can be included in the first electrode group 220G1, and some of the remaining second electrodes 220-2 (hereinafter referred to as "2-2 electrodes") among the second electrodes 220 can be included in the second electrode group 220G2.

[0203] A boundary RIL can be defined between the first electrode group 220G1 and the second electrode group 220G2. Accordingly, the 2-1 electrodes 220-1 and the 2-2 electrodes 220-2 can be spaced apart from each other with the boundary RIL therebetween. The wiring direction of each of the 2-1 electrodes 220-1 can be different from the wiring direction of each of the 2-2 electrodes 220-2.

[0204] The second traces 220t can be classified into a first trace group 220tG1 electrically connected to the first electrode group 220G1 and a second trace group 220tG2 electrically connected to the second electrode group 220G2. The first trace group 220tG1 and the second trace group 220tG2 can be spaced apart from each other with the sensing area 200A therebetween.

[0205] The sensor layer 200 can further include a third trace 230rt1 disposed in the peripheral area 200NA, a plurality of third pads PD3 connected to one end and the other end of the third trace 230rt1, fourth traces 240t-1 and 240t-2, fourth pads PD4 connected to the fourth traces 240t-1 and 240t-2 in a one-to-one corresponding manner, a fifth trace 230rt2, and fifth pads PD5 connected to the fifth trace 230rt2 in a one-to-one corresponding manner.

[0206] The third trace 230rt1 can be electrically connected to all of the third electrodes 230. The third trace 230rt1 can include a first line portion 231t extending in the first direction DR1 and electrically connected to the third electrodes 230, a second line portion 232t extending in the second direction DR2 from a first end of the first line portion 231t, and a third line portion 233t extending in the second direction DR2 from a second end of the first line portion 231t.

[0207] According to some embodiments 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 substantially the same as the resistance of one of the third electrodes 230. Accordingly, the second line portion 232t and the third line portion 233t can function as the third electrodes 230, and the same effect as when the third electrodes 230 are also disposed 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 third electrodes 230 can form a coil. Accordingly, the pen PN located in an area adjacent to the peripheral area 200NA can also be sufficiently charged by a loop including the second line portion 232t or the third line portion 233t.

[0208] According to some embodiments of the present disclosure, in order to adjust the resistance of each of the second line portion 232t and the third line portion 233t, the width of each of the second line portion 232t and the third line portion 233t in the first direction DR1 can be adjusted. However, this is merely an example, and 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.

[0209] The fifth trace 230rt2 can be connected to the third electrodes 230 in a one-to-one correspondence. In other words, the number of the fifth traces 230rt2 can correspond to the number of the third electrodes 230. In Figure 6 In the drawing, three fifth traces 230rt2 are shown.

[0210] According to some embodiments of the present disclosure, the fifth trace 230rt2 and the fifth pad PD5 can be omitted, and a charging driving mode for charging the pen PN can be omitted. In this case, the sensor layer 200 can sense an input from an active pen capable of emitting a magnetic field even when no magnetic field is provided from the sensor layer 200.

[0211] According to some embodiments of the present disclosure, the fourth electrode 240 can include one fourth electrode 240G1 (hereinafter referred to as a "4-1 electrode") overlapping the first electrode group 220G1 and another fourth electrode 240G2 (hereinafter referred to as a "4-2 electrode") overlapping the second electrode group 220G2. The 4-1 electrode 240G1 can include the 2-1 auxiliary electrode 240s1. The 4-2 electrode 240G2 can include the 2-2 auxiliary electrode 240s2.

[0212] The fourth traces 240t-1 and 240t-2 can be spaced apart from each other with the sensing area 200A therebetween. The fourth trace 240t-1 among the fourth traces 240t-1 and 240t-2 (hereinafter referred to as a "4-1 trace") can be electrically connected to the 4-1 electrode 240G1. The other fourth trace 240t-2 among the fourth traces 240t-1 and 240t-2 (hereinafter referred to as a "4-2 trace") can be electrically connected to the 4-2 electrode 240G2. One end of each of the 2-1 auxiliary electrodes 240s1 can be connected to the 4-1 trace 240t-1. One end of each of the 2-2 auxiliary electrodes 240s2 can be connected to the 4-2 trace 240t-2.

[0213] The 4-1 trace 240t-1 and the 4-2 trace 240t-2 can be spaced apart from each other with the sensing area 200A therebetween. The 4-1 trace 240t-1 and the first trace group 220tG1 can be spaced apart from each other with the sensing area 200A therebetween. Also, the 4-2 trace 240t-2 and the second trace group 220tG2 can be spaced apart from each other with the sensing area 200A therebetween. The second trace group 220tG2 and the 4-1 trace 240t-1 can be disposed in one portion of the peripheral area 200NA disposed on the left side of the sensing area 200A. The first trace group 220tG1 and the 4-2 trace 240t-2 can be disposed in one portion of the peripheral area 200NA disposed on the right side of the sensing area 200A.

[0214] Figure 10A is Figure 8A an enlarged plan view of the area AA' shown in FIG. Figure 10B is Figure 8B an enlarged plan view of the area BB' shown in FIG.

[0215] Referring to Figure 8A , Figure 8B , Figure 10A and Figure 10BEach of the first electrode 210, the second electrode 220, the third electrode 230, the fourth electrode 240, and the dummy pattern DMP can have a mesh structure. Each of the mesh structures can include a plurality of mesh lines. Each of the plurality of mesh lines can have a shape extending in a direction (e.g., a set or predetermined direction) and can be connected to each other. The shape can have various shapes such as a straight line, a line with a protrusion, or a line that is not flat. An opening in which the mesh structure is not located can be defined (provided or formed) in each of the first electrode 210, the second electrode 220, the third electrode 230, the fourth electrode 240, and the dummy pattern DMP.

[0216] Figure 10A and Figure 10B It is illustrated that the mesh structure includes mesh lines extending in a first cross direction CDR1 intersecting the first direction DR1 and the second direction DR2 and mesh lines extending in a second cross direction CDR2 intersecting the first cross direction CDR1. However, the extending direction of the mesh lines constituting the mesh structure is not particularly limited to the illustration in Figure 10A and Figure 10B . For example, the mesh structure can include only mesh lines extending in the first direction DR1 and the second direction DR2, or can include mesh lines extending in the first direction DR1, the second direction DR2, the first cross direction CDR1, and the second cross direction CDR2. In other words, the mesh structure can be changed to various forms.

[0217] Figure 11 is a diagram illustrating an operation of the sensor driver 200C (see Figure 4 ) according to some embodiments of the disclosure.

[0218] Referring to Figure 4 and Figure 11 , the sensor driver 200C can be configured to selectively operate in one of a first operation mode DMD1, a second operation mode DMD2, and a third operation mode DMD3.

[0219] The first operation mode DMD1 can be referred to as a "touch and pen standby mode"; the second operation mode DMD2 can be referred to as a "touch activation and pen standby mode"; and the third operation mode DMD3 can be referred to as a "pen activation mode". The first operation mode DMD1 can be in a mode for waiting for the first input 2000 and the second input 3000. The second operation mode DMD2 can be in a mode for sensing the first input 2000 and waiting for the second input 3000. The third operation mode DMD3 can be a mode for sensing the second input 3000.

[0220] According to some embodiments of the disclosure, the sensor driver 200C can be first driven in the first operation mode DMD1. When the first input 2000 is sensed in the first operation mode DMD1, the sensor driver 200C can be converted (or changed) to the second operation mode DMD2. Alternatively, when the second input 3000 is sensed in the first operation mode DMD1, the sensor driver 200C can be converted (or changed) to the third operation mode DMD3.

[0221] According to some embodiments of the disclosure, when the second input 3000 is sensed in the second operation mode DMD2, the operation mode of the sensor driver 200C can be converted to the third operation mode DMD3. When the first input 2000 is terminated (or not detected) in the second operation mode DMD2, the operation mode of the sensor driver 200C can be converted to the first operation mode DMD1. When the second input 3000 is terminated (or not detected) in the third operation mode DMD3, the operation mode of the sensor driver 200C can be converted to the first operation mode DMD1.

[0222] Figure 12A is a diagram illustrating the operation of the sensor driver 200C (see Figure 4 ) according to some embodiments of the disclosure.

[0223] Referring to Figure 4 , Figure 11 and Figure 12A , the operation in the first operation mode DMD1, the second operation mode DMD2, and the third operation mode DMD3 is shown in the order of time.

[0224] In the first operation mode DMD1, the sensor driver 200C can 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 can perform a scan driving operation to detect the second input 3000. During the first mode MD1-d, the sensor layer 200 can perform a scan driving operation to detect the first input 2000. Figure 12A It is shown that the sensor driver 200C is continuously operated in the first mode MD1-d after the second mode MD2-d, but the order is not limited thereto.

[0225] In the second operation mode DMD2, the sensor driver 200C can 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 can perform a scan driving operation to detect the second input 3000. During the first mode MD1, the sensor layer 200 can perform a scan driving operation to detect the coordinates of the first input 2000.

[0226] In the third operation mode DMD3, the sensor driver 200C can be driven in the second mode MD2. During the second mode MD2, the sensor layer 200 can perform a scan driving operation to detect the coordinates of the second input 3000. In the third operation mode DMD3, the sensor driver 200C can not operate in the first mode MD1-d or MD1 until the second input 3000 is terminated (or the second input 3000 is not detected).

[0227] Referring to Figure 6 In the first mode MD1-d and the first mode MD1, all of the third electrodes 230 and the fourth electrodes 240 can be grounded. Accordingly, it is possible to prevent or reduce touch noise entering through the third electrodes 230 and the fourth electrodes 240.

[0228] In the second mode MD2-d and the second mode MD2, one end of each of the third electrodes 230 and the fourth electrodes 240 can be floating. In addition, in the second mode MD2-d and the second mode MD2, the other end of each of the third electrodes 230 and the fourth electrodes 240 can be grounded or floating. Accordingly, it is possible to maximize or improve compensation of a sensing signal through coupling between the first electrodes 210 and the third electrodes 230 and coupling between the second electrodes 220 and the fourth electrodes 240.

[0229] Figure 12B FIG. 2 is a diagram illustrating an operation of the second mode MD2 according to some embodiments of the present disclosure.

[0230] Referring to Figure 12B The second mode MD2 can include a first driving mode MD2-1 and a second driving mode MD2-2. The first driving mode MD2-1 of the second mode MD2 can be referred to as a "proactive driving mode", and the second driving mode MD2-2 of the second mode MD2 can be referred to as a "main driving mode".

[0231] The first driving mode MD2-1 can include a touch driving mode FT, a charging driving mode SCC, and a pre-pen sensing driving mode PSS. The second driving mode MD2-2 can include a touch driving mode FT, a charging driving mode SCC, and a pen sensing driving mode SS.

[0232] The touch driving mode FT can be a mode driven to detect a touch of a palm or a blade of a hand. However, only the touch is detected, and an operation corresponding to the input can not be performed. In other words, the touch driving mode FT can only detect that a touch of a palm or a blade of a hand is occurring, and can be a mode of recognizing coordinates without performing an operation corresponding to the recognized result. In other words, according to some embodiments, during the touch driving mode FT, whether a touch is occurring or not can be detected or determined, regardless of a location or coordinates of the touch. According to some embodiments of the present disclosure, the touch driving mode FT can be omitted in at least one of the first driving mode MD2-1 and the second driving mode MD2-2.

[0233] The charging driving mode SCC can be a mode of providing a signal for charging the pen PN. In the charging driving mode SCC, a magnetic field can be formed in the sensor layer 200. In this case, the pen PN adjacent to the sensor layer 200 can be charged. The charging driving mode SCC can be referred to as a driving mode of generating a magnetic field for charging the pen PN.

[0234] The pre-pen sensing driving mode PSS can be a mode for detecting an active area in which the pen PN is located. For example, the sensor driver 200C can change a weight applied to each of signals received from the second electrode 220 according to a location of the active area. That is, the pre-pen sensing driving mode PSS can be a mode for determining a weight value. The weight value can be at least one of a weight and a gain.

[0235] The pen sensing driving mode SS can be a mode for detecting a location of the pen PN. For example, the sensor driver 200C can change one of a weight and a gain, and can detect a pen coordinate based on signals received from the first electrode 210 and the second electrode 220.

[0236] Figure 13 FIG. 1 is a diagram for describing a first mode according to some embodiments of the present disclosure.

[0237] Referring to Figure 12A and Figure 13 , the first mode MD1-d of the first operation mode DMD1 and the first mode MD1 of the second operation mode DMD2 can include a mutual capacitance detection mode. Figure 13 FIG. 2 is a diagram for describing the mutual capacitance detection mode in the first mode MD1-d and the first mode MD1.

[0238] In the mutual capacitance detection mode, the sensor driver 200C can sequentially provide the transmission signal TX to the first electrode 210, and can detect the coordinates of the first input 2000 by using the reception signal RX detected through the second electrode 220. For example, the sensor driver 200C can be configured to calculate the input coordinates by sensing the mutual capacitance change between the first electrode 210 and the second electrode 220.

[0239] Figure 13 It is shown that the transmission signal TX is provided to one first electrode 210, and the reception signal RX is output from the second electrode 220. In order to make the representation of the signals clear, Figure 13 It is shown that one first electrode 210 to which only the transmission signal TX is provided is shaded. The sensor driver 200C can detect the input coordinates of the first input 2000 by sensing the capacitance change between each of the second electrode 220 and the first electrode 210.

[0240] In the mutual capacitance detection mode, both the third electrode 230 and the fourth electrode 240 can be grounded. Therefore, noise can not be introduced through the third electrode 230 and the fourth electrode 240.

[0241] According to some embodiments of the present disclosure, at least one of the first mode MD1-d and the first mode MD1 can further include a self-capacitance detection mode. In the self-capacitance detection mode, the sensor driver 200C can be configured to output a driving signal to the first electrode 210 and the second electrode 220, and calculate the input coordinates by sensing the capacitance change between the first electrode 210 and the second electrode 220.

[0242] Figure 14 is a diagram for describing the second mode MD2 according to some embodiments of the present disclosure, particularly a charge driving mode SCC. Figure 15A is a graph showing a waveform of a first signal according to some embodiments of the present disclosure. Figure 15B is a graph showing a waveform of a second signal according to some embodiments of the present disclosure.

[0243] Referring to Figure 12B , Figure 14 , Figure 15A and Figure 15B , the charge driving mode SCC can include a search charge driving mode and a tracking charge driving mode.

[0244] The search charging driving mode can be a driving mode before the position of the pen PN is sensed. Accordingly, the first signal SG1 or the second signal SG2 can be provided to all channels included in the sensor layer 200. In other words, the entire area of the sensor layer 200 can be scanned in the search charging driving mode. When the pen PN is sensed in the search charging driving mode, the sensor layer 200 can be driven to track the charging. For example, in the tracking charging driving mode, the sensor driver 200C can sequentially output the first signal SG1 and the second signal SG2 to an area overlapping a point at which the pen PN is sensed, instead of the entire sensor layer 200.

[0245] In the charging driving mode SCC, the sensor driver 200C can apply the first signal SG1 to one of the third pad PD3a and the fifth pad PD5a, and can apply the second signal SG2 to the other pad of the third pad PD3a and the fifth pad PD5a. The second signal SG2 can be an inverse signal of the first signal SG1. For example, the first signal SG1 can be a sine signal.

[0246] Because the first signal SG1 and the second signal SG2 are applied to at least two pads, the current RFS can have a current path through one pad to the other pad. Furthermore, because the first signal SG1 and the second signal SG2 are sine signals having an anti-correlation with each other, the direction of the current RFS can periodically change. According to some embodiments of the present disclosure, the first signal SG1 and the second signal SG2 can be square wave signals having an anti-correlation with each other.

[0247] When the first signal SG1 and the second signal SG2 have an anti-correlation, noise caused by the first signal SG1 in the display layer 100 (see Figure 3 ) can be canceled out with noise caused by the second signal SG2. Accordingly, flickering can not occur in the display layer 100, and the display quality of the display layer 100 can be relatively improved.

[0248] According to some embodiments of the present disclosure, the first signal SG1 can be a sine signal. However, embodiments of the present disclosure are not limited thereto, and the first signal SG1 can be a square wave signal. Furthermore, the second signal SG2 can have a constant voltage (e.g., a set or predetermined constant voltage). For example, the second signal SG2 can be a ground voltage. In other words, it is identified that the pad to which the second signal SG2 is applied is grounded. In this case, the current RFS can flow from one pad to the other pad. Furthermore, because the first signal SG1 is a sine wave signal or a square wave signal even when the other pad is grounded, the direction of the current RFS can periodically change.

[0249] Reference will now be made to Figure 14The second signal SG2 is provided through a third pad PD3a connected to a third trace 230rt1, and the first signal SG1 is provided through a fifth pad PD5a connected to the third electrode 230. The current RFS can flow through a current path defined by the fifth pad PD5a, a fifth trace 230rt2 connected to the fifth pad PD5a, the third electrode 230, a portion of the third trace 230rt1 connected to the third pad PD3a, and the third pad PD3a. The current path can have the form of a coil. Accordingly, in the charging driving mode SCC of the second mode MD2, the resonance circuit of the pen PN can be charged by the current path.

[0250] According to some embodiments of the present disclosure, the current path of the loop coil pattern can be implemented by components included in the sensor layer 200. Accordingly, the electronic device 1000 (see Figure 1A ) can charge the pen PN by using the sensor layer 200. Accordingly, since a separate configuration having a loop for charging the pen PN is not required to be added, the thickness and weight of the electronic device 1000 can not be increased and the flexibility of the electronic device 1000 can not be reduced.

[0251] In the charging driving mode SCC, the first electrode 210, the second electrode 220, and the fourth electrode 240 can be grounded, or can be electrically floated. Alternatively, a constant voltage can be applied to the first electrode 210, the second electrode 220, and the fourth electrode 240. In particular, the first electrode 210, the second electrode 220, and the fourth electrode 240 can be floated. In this case, the current RFS can not flow to the first electrode 210, the second electrode 220, and the fourth electrode 240.

[0252] Figure 16 FIG. 1 is a diagram illustrating a divided area according to some embodiments of the present disclosure.

[0253] Referring to Figure 6 and Figure 16 , the sensing area 200A of the sensor layer 200 can include a plurality of divided areas DVA defined in the first direction DR1. For example, the plurality of divided areas DVA can include a first outer divided area DVA1, a central divided area DVA2, and a second outer divided area DVA3.

[0254] According to some embodiments of the present disclosure, at least one of the gain and the weight applied to each of the signals received from the second electrodes 220 can be changed according to an active area in which the pen PN is located among the division areas DVA. For example, at least one of the gain and the weight applied to each of the signals received from the first electrode group 220G1 located above the boundary RIL can be adjusted according to the active area; at least one of the gain and the weight applied to each of the signals received from the second electrode group 220G2 located below the boundary RIL can be adjusted; and at least one of the gain and the weight applied to each of the signals received from the first electrode group 220G1 and at least one of the gain and the weight applied to each of the signals received from the second electrode group 220G2 can be adjusted.

[0255] Figure 17 is a diagram for describing a second mode MD2, particularly a pre-pen sensing driving mode PSS, according to some embodiments of the present disclosure.

[0256] Referring to Figure 4 , Figure 16 and Figure 17 , the second mode MD2 can include the pre-pen sensing driving mode PSS (see Figure 12B ). Referring to Figure 17 , under the pre-pen sensing driving mode PSS, the sensor driver 200C can be configured to detect an active area in which the pen PN is located among the division areas DVA based on signals received from the sensor layer 200. The division areas DVA are sequentially defined in the first direction DR1. Accordingly, the active area can be detected based on a position in the first direction DR1.

[0257] According to some embodiments of the present disclosure, the sensor driver 200C can receive first reception signals PRX1 from the first electrodes 210 and can detect the active area based on the first reception signals PRX1. In other words, under the pre-pen sensing driving mode PSS, the second electrodes 220 can not receive signals. In this case, the current consumption of the electronic device 1000 can be reduced.

[0258] The sensor driver 200C is configured to change at least one of the gain and the weight applied to each of the first electrode group 220G1 and the second electrode group 220G2 according to the position of the active area. For example, at least one of the gain and the weight can be adjusted such that a sensitivity difference between signals received from the second electrodes 220 adjacent to the boundary RIL in which the wiring direction is changed is reduced or eliminated. Accordingly, a phenomenon of a decrease in coordinate accuracy due to the sensitivity difference can be mitigated or eliminated. In other words, the sensitivity difference according to the change in the wiring direction can be corrected, thereby improving the pen detection accuracy.

[0259] According to some embodiments of the disclosure, the sensor driver 200C can receive a signal from both the first electrode 210 and the second electrode 220, i.e., a reception signal. Then, the sensor driver 200C can detect an active area based on the reception signal.

[0260] Figure 18 FIG. 1 is a diagram illustrating a sensor driver 200C according to some embodiments of the disclosure.

[0261] Referring to Figure 17 and Figure 18 , a sensor driver 200C, one second electrode 220-1a, and another second electrode 220-2a are illustrated. The one second electrode 220-1a can be included in the first electrode group 220G1, and the other second electrode 220-2a can be included in the second electrode group 220G2.

[0262] The sensor driver 200C can include a charging voltage amplifier AP, a first variable capacitor VC1, a first variable resistor VR1, a second variable capacitor VC2, a second variable resistor VR2, a current conveyor CC, and an analog-to-digital converter ADC. The components included in the sensor driver 200C are not limited to the above-described components. At least some of the above-described components can be omitted, and other components can be added. Furthermore, the connection order of the components included in the sensor driver 200C can also be changed. For example, the current conveyor CC can be disposed between the charging voltage amplifier AP and the one second electrode 220-1a and between the charging voltage amplifier AP and the other second electrode 220-2a.

[0263] According to some embodiments of the disclosure, the one second electrode 220-1a can be electrically connected to the inverting terminal of the charging voltage amplifier AP. The other second electrode 220-2a can be electrically connected to the non-inverting terminal of the charging voltage amplifier AP. For example, the two second electrodes 220-1a and 220-2a adjacent to each other or spaced apart from each other by a distance (e.g., a set or predetermined distance) can be electrically connected to the charging voltage amplifier AP.

[0264] According to some embodiments of the disclosure, each of the first variable capacitor VC1 and the first variable resistor VR1 can be connected in parallel to the inverting terminal and the output terminal of the charging voltage amplifier AP. Each of the second variable capacitor VC2 and the second variable resistor VR2 can be connected in parallel to the non-inverting terminal and the output terminal of the charging voltage amplifier AP.

[0265] According to some embodiments of the present disclosure, the sensor driver 200C can adjust the gain by adjusting at least one of the first variable capacitor VC1, the first variable resistor VR1, the second variable capacitor VC2, and the second variable resistor VR2. For example, the first capacitor CM1 and the first resistor RT1 can be defined (formed or disposed) in one second electrode 220-1a. The second capacitor CM2 and the second resistor RT2 can be defined in the other second electrode 220-2a.

[0266] The gain of one second electrode 220-1a can correspond to a minimum value of a ratio of the first capacitor CM1 / first variable capacitor VC1 and the first variable resistor VR1 / first resistor RT1. Also, the gain of the other second electrode 220-2a can correspond to a minimum value of a ratio of the second capacitor CM2 / second variable capacitor VC2 and the second variable resistor VR2 / second resistor RT2.

[0267] According to some embodiments of the present disclosure, the first signal RXSa received from one second electrode 220-1a and the second signal RXSb received from the other second electrode 220-2a can be amplified with different gain values. Accordingly, at least one of the gain and the weight can be adjusted so that a sensitivity difference between signals received from the second electrodes 220-1a and 220-2a adjacent to the boundary RIL where the wiring direction changes is reduced or eliminated. Accordingly, a phenomenon in which the coordinate accuracy can be reduced due to the sensitivity difference can be mitigated or eliminated.

[0268] The signal output from the charge voltage amplifier AP can be provided to the current conveyor CC. For example, the signals of two channels (e.g., the first signal RXSa received from one second electrode 220-1a and the second signal RXSb received from the other second electrode 220-2a) having different wiring directions from each other can be opposite to each other. Accordingly, the current conveyor CC can process the signal output from the charge voltage amplifier AP for differential sensing.

[0269] The analog-to-digital converter ADC can receive the signal provided from the current conveyor CC. The analog-to-digital converter ADC can sample a maximum point of the received signal, and can convert the sampling result into a digital signal. The analog-to-digital converter ADC can output a code CHD for converting the analog signal into the digital signal.

[0270] Figure 19 FIG. 1 is a diagram illustrating a sensor driver 200Ca according to some embodiments of the present disclosure.

[0271] Reference Figure 17 and Figure 19The sensor driver 200Ca, one second electrode 220-1a, and another second electrode 220-2a are shown.

[0272] The sensor driver 200Ca includes a first charge voltage amplifier APa and a second charge voltage amplifier APb, a first variable capacitor VCPa, a first variable resistor VRa, a second variable capacitor VCPa, a second variable resistor VRb, an intermediate circuit AC, a first analog-digital converter ADCa, a second analog-digital converter ADCb, and a difference calculator DCC. The components included in the sensor driver 200Ca are not limited to the above-described components. At least some of the above-described components can be omitted, and other components can be added.

[0273] According to some embodiments of the present disclosure, one second electrode 220-1a can be electrically connected to an inverting terminal of the first charge voltage amplifier APa, and a reference voltage V_Ref can be provided to a non-inverting terminal of the first charge voltage amplifier APa. Another second electrode 220-2a can be electrically connected to an inverting terminal of the second charge voltage amplifier APb, and a reference voltage V_Ref can be provided to a non-inverting terminal of the second charge voltage amplifier APb. According to some embodiments of the present disclosure, each of the first variable capacitor VCPa and the first variable resistor VRa can be connected in parallel to the inverting terminal and the output terminal of the first charge voltage amplifier APa. Each of the second variable capacitor VCPb and the second variable resistor VRb can be connected in parallel to the inverting terminal and the output terminal of the second charge voltage amplifier APb.

[0274] According to some embodiments of the present disclosure, the sensor driver 200Ca can adjust the gain by adjusting at least one of the first variable capacitor VCPa, the first variable resistor VRa, the second variable capacitor VCPb, and the second variable resistor VRb. For example, a first capacitor CM1 and a first resistor RT1 can be defined (formed or provided) in one second electrode 220-1a. A second capacitor CM2 and a second resistor RT2 can be defined in another second electrode 220-2a.

[0275] The gain of one second electrode 220-1a can correspond to a minimum value of a ratio of the first capacitor CM1 / first variable capacitor VCPa and the first variable resistor VRa / first resistor RT1. Also, the gain of another second electrode 220-2a can correspond to a minimum value of a ratio of the second capacitor CM2 / second variable capacitor VCPb and the second variable resistor VRb / second resistor RT2.

[0276] According to some embodiments of the present disclosure, the first signal RXSa received from one second electrode 220-1a and the second signal RXSb received from the other second electrode 220-2a can be amplified with different gain values. Accordingly, at least one of the gain and the weight can be adjusted so that a difference in sensitivity between the signals received from the second electrodes 220-1a and 220-2a adjacent to the boundary RIL where the wiring direction changes is reduced or eliminated. Accordingly, a phenomenon of a decrease in coordinate accuracy due to the difference in sensitivity can be mitigated or eliminated.

[0277] The signals output from the first and second charge voltage amplifiers APa and APb can be provided to an intermediate circuit AC. The intermediate circuit AC can be a circuit composed of passive elements. For example, each of the intermediate circuits AC can include a low-pass filter, and the low-pass filter can include a resistor and a capacitor.

[0278] The signals output from the intermediate circuit AC can be output to the first and second analog-to-digital converters ADCa and ADCb. Each of the first and second analog-to-digital converters ADCa and ADCb can sample a maximum point of the received signal and can convert the sampling result into a digital signal. The first analog-to-digital converter ADCa can output first data DT1. The second analog-to-digital converter ADCb can output second data DT2.

[0279] The difference calculator DCC can receive the first data DT1 and the second data DT2. When the signals of the first data DT1 and the second data DT2 are the same as each other, the difference calculator DCC can output a code CHD based on a difference between the first data DT1 and the second data DT2. Or, when the signals of the first data DT1 and the second data DT2 are not the same as each other, the difference calculator DCC can output the code CHD based on a sum of the first data DT1 and the second data DT2.

[0280] Figure 20 FIG. 2B is a diagram illustrating a sensor driver 200Cb according to some embodiments of the present disclosure.

[0281] Referring to Figure 17 and Figure 20 , the sensor driver 200Cb, one second electrode 220-1a, and the other second electrode 220-2a are illustrated.

[0282] The sensor driver 200Cb can include a first charging voltage amplifier APa and a second charging voltage amplifier APb, a first capacitor CPa, a second capacitor CPb, an intermediate circuit AC, a first analog-digital converter ADCa, a second analog-digital converter ADCb, and a difference calculator DCC. The components included in the sensor driver 200Cb are not limited to the above-described components. At least some of the above-described components can be omitted, and other components can be added.

[0283] According to some embodiments of the present disclosure, the first capacitor CPa can be connected in parallel to the inverting terminal and the output terminal of the first charging voltage amplifier APa. The second capacitor CPb can be connected in parallel to the inverting terminal and the output terminal of the second charging voltage amplifier APb. The first capacitor CPa and the second capacitor CPb can have an unchangeable capacitance, and the gain of each of the first charging voltage amplifier APa and the second charging voltage amplifier APb can be fixed.

[0284] The signals output from the first charging voltage amplifier APa and the second charging voltage amplifier APb can be provided to the intermediate circuit AC. Each of the intermediate circuits AC can include a low-pass filter, and the low-pass filter can include a resistor and a capacitor. The signals output from the intermediate circuit AC can be output to the first analog-digital converter ADCa and the second analog-digital converter ADCb. Each of the first analog-digital converter ADCa and the second analog-digital converter ADCb can sample a maximum value point of the received signal, and can convert the sampling result into a digital signal. The first analog-digital converter ADCa can output first data DT1a. The second analog-digital converter ADCb can output second data DT2a.

[0285] According to some embodiments of the present disclosure, a first weight GA1 can be applied to the first data DT1a, and a second weight GA2 can be applied to the second data DT2a. The first data DT1a generated from the first signal RXSa received from one second electrode 220-1a and the second data DT2a generated from the second signal RXSb received from another second electrode 220-2a can be adjusted because different weights are applied. Accordingly, the weights can be adjusted such that a sensitivity difference between the signals received from the second electrodes 220-1a and 220-2a adjacent to the boundary RIL where the wiring direction changes is reduced or eliminated. Accordingly, a phenomenon of a decrease in coordinate accuracy due to the sensitivity difference can be mitigated or eliminated.

[0286] First weight data obtained by applying a first weight GA1 to the first data DT1a and second weight data obtained by applying a second weight GA2 to the second data DT2a can be provided to a difference calculator DCC. The difference calculator DCC can calculate the first weight data and the second weight data, and can output a code CHD.

[0287] Figure 21 FIG. 1 is a diagram illustrating a sensor driver 200Cc according to some embodiments of the present disclosure. In the description of FIG. 1, the same reference numerals are assigned to the same components as described with reference to Figure 21 Figure 19 and Figure 20 described, and thus some repetitive descriptions of the same or similar components can be omitted to avoid redundancy.

[0288] Referring to Figure 17 and Figure 21 , the sensor driver 200Cc, one second electrode 220-1a, and another second electrode 220-2a are illustrated.

[0289] The sensor driver 200Cc includes a first charge voltage amplifier APa and a second charge voltage amplifier APb, a first variable capacitor VCPa, a first variable resistor VRa, a second variable capacitor VCPa, a second variable resistor VRb, an intermediate circuit AC, a first analog-to-digital converter ADCa, a second analog-to-digital converter ADCb, and a difference calculator DCC.

[0290] According to some embodiments of the present disclosure, the sensor driver 200Cc can adjust a gain by adjusting at least one of the first variable capacitor VCPa, the first variable resistor VRa, the second variable capacitor VCPb, and the second variable resistor VRb. In addition, a first weight GA1 can be applied to first data DT1b output from the first analog-to-digital converter ADCa. A second weight GA2 can be applied to second data DT2b output from the second analog-to-digital converter ADCb.

[0291] According to some embodiments of the present disclosure, a first signal RXSa received from one second electrode 220-1a and a second signal RXSb received from another second electrode 220-2a can be amplified with different gain values and different weights can be applied. Accordingly, at least one of the gain and the weight can be adjusted so that a sensitivity difference between signals received from the second electrodes 220-1a and 220-2a adjacent to a boundary RIL where a wiring direction changes is reduced or eliminated. Accordingly, a phenomenon of a decrease in coordinate accuracy due to the sensitivity difference can be mitigated or eliminated.

[0292] Figure 22 FIG. 2 is a diagram illustrating gain values corresponding to channels according to some embodiments of the present disclosure.​ Figure 23 is a graph showing gain values corresponding to channels according to some embodiments of the present disclosure.

[0293] Referring to Figure 4 , Figure 6 , Figure 22 and Figure 23 , gain values applied to signals received from channels (e.g., the first electrode 210, the first electrode group 220G1, and the second electrode group 220G2) can be stored in a memory within the sensor driver 200C or a memory in communication with the sensor driver 200C, but embodiments according to the present disclosure are not particularly limited thereto.

[0294] In Figure 22 , gain values corresponding to channels before a pre-pen sensing driving mode PSS (e.g., before an active area in which the pen PN is located is detected) are described. For example, a gain value applied to a signal received from the first electrode 210 can be GAIN_A, and gain values applied to signals received from the first electrode group 220G1 and the second electrode group 220G2 among the second electrodes 220 can be GAIN_B.

[0295] Then, when the active area in which the pen PN is located is detected, gain values of at least one of the first electrode group 220G1 and the second electrode group 220G2 can be adjusted according to a position of the active area. An example of gain values adjusted according to the active area is shown in Figure 23 . Embodiments according to the present disclosure are not limited to the gain adjustment pattern or amount as shown in Figure 23 .

[0296] Referring to Figure 23 , a gain value applied to a signal received from the first electrode 210 can be maintained as GAIN_A without change. Also, when the active area is the central division area DVA2, gain values applied to signals received from the first electrode group 220G1 and the second electrode group 220G2 can be maintained as GAIN_B.

[0297] When the active area is the first outer partition area DVA1, the gain value applied to the signal received from the first electrode group 220G1 can change from GAIN_B to GAIN_1, and the gain value applied to the signal received from the second electrode group 220G2 can remain GAIN_B. When the active area is the second outer partition area DVA3, the gain value applied to the signal received from the first electrode group 220G1 can remain GAIN_B, and the gain value applied to the signal received from the second electrode group 220G2 can change from GAIN_B to GAIN_2. Each of GAIN_1 and GAIN_2 can have a value greater than GAIN_B. GAIN_1 and GAIN_2 can have values capable of reducing the deviation of sensitivity. GAIN_1 and GAIN_2 can be the same as or different from each other.

[0298] In Figure 22 and Figure 23 , the adjustment of the gain is described as an example, but the description can be substantially equally applied to the weights described with reference to Figure 20 . The weight can be a value multiplied by the data DT1a or DT2a (see Figure 20 ) output from the analog-to-digital converter ADCa or ADCb (see Figure 20 ). For example, when the active area is the first outer partition area DVA1, the weight applied to the signal received from the first electrode group 220G1 can be increased, and the weight applied to the signal received from the second electrode group 220G2 can be maintained. When the active area is the second outer partition area DVA3, the weight applied to the signal received from the first electrode group 220G1 can be maintained, and the weight applied to the signal received from the second electrode group 220G2 can be increased. When the weight is adjusted, the difference in data due to the sensitivity difference can be reduced. Accordingly, the phenomenon of the reduction in coordinate accuracy due to the sensitivity difference can be relatively mitigated or eliminated.

[0299] According to some embodiments of the disclosure, the first gain applied to the signal received from some of the second electrodes 220-1 included in the first electrode group 220G1 can be the same as each other. Alternatively, the first weight applied to the signal received from the second electrodes 220-1 can be the same as each other. Further, the second gain applied to the signal received from some of the other second electrodes 220-2 included in the second electrode group 220G2 can be the same as each other. Alternatively, the second weight applied to the signal received from the other second electrodes 220-2 can be the same as each other.

[0300] The first gain can be the same as the second gain and the first weight can be the same as the second weight when the pen PN is located in the central partition area DVA2. The first gain can be different from the second gain when the pen PN is located in the first outer partition area DVA1 or the second outer partition area DVA3. The first weight can be different from the second weight when the pen PN is located in the first outer partition area DVA1 and the second outer partition area DVA3.

[0301] Figure 24A FIG. 2B is a diagram for describing a second mode MD2 according to some embodiments of the present disclosure. Figure 24B FIG. 2C is a diagram for describing a second mode MD2 based on a sensing unit SU according to some embodiments of the present disclosure.

[0302] Referring to Figure 4 , Figure 24A and Figure 24B , the second mode MD2 can include a charge driving mode SCC and a pen sensing driving mode SS. Figure 24A and Figure 24B are diagrams for describing the pen sensing driving mode SS. Figure 24B FIG. 2D illustrates one sensing unit SU through which a first induced current Ia, a second induced current Ib, a third induced current Ic, and a fourth induced current Id generated by a pen PN flow.

[0303] The RLC resonance circuit of the pen PN can emit a magnetic field at a resonance frequency while discharging the charged electricity. Due to the magnetic field provided by the pen PN, a first induced current Ia can be generated in the first electrode 210, and a second induced current Ib can be generated in the second electrode 220. In addition, a third induced current Ic can be generated in the first auxiliary electrode 230s of the third electrode 230, and a fourth induced current Id can also be generated in the second auxiliary electrode 240s of the fourth electrode 240.

[0304] A first coupling capacitor Ccp1 can be formed between the first auxiliary electrode 230s and the first electrode 210. A second coupling capacitor Ccp2 can be formed between the second auxiliary electrode 240s and the second electrode 220. The third induced current Ic can be transferred to the first electrode 210 through the first coupling capacitor Ccp1. The fourth induced current Id can be transferred to the second electrode 220 through the second coupling capacitor Ccp2.

[0305] The sensor driver 200C can receive a first reception signal PRX1a based on the first induced current Ia and the third induced current Ic from the first electrode 210, and can receive a second reception signal PRX2a based on the second induced current Ib and the fourth induced current Id from the second electrode 220. The sensor driver 200C can detect an input coordinate of the pen PN based on the first reception signal PRX1a and the second reception signal PRX2a.

[0306] The sensor driver 200C can receive the first reception signal PRX1a from the first electrode 210, and can receive the second reception signal PRX2a from the second electrode 220. In this case, all ends of the third electrode 230 and the fourth electrode 240 can be floated. Thus, compensation of the sensing signal can be maximized by coupling between the first electrode 210 and the third electrode 230 and coupling between the second electrode 220 and the fourth electrode 240. Further, the other ends of the third electrode 230 and the fourth electrode 240 can be grounded or floated. Thus, the third induced current Ic and the fourth induced current Id can be sufficiently transferred to the first electrode 210 and the second electrode 220 by coupling between the first electrode 210 and the third electrode 230 and by coupling between the second electrode 220 and the fourth electrode 240.

[0307] According to some embodiments of the present disclosure, the wiring direction of the electrodes and the auxiliary electrodes of the sensor layer 200 in which the layers overlap can be different. For example, the wiring direction of the first electrode 210 can be different from the wiring direction of the first auxiliary electrode 230s. Further, the wiring direction of the second electrode 220 can be different from the wiring direction of the second auxiliary electrode 240s. For example, in Figure 24B In the above-described embodiment, the first electrode 210 and the first trace 210t can be connected in a lower portion of the sensing unit SU. The first auxiliary electrode 230s and the third trace 230rt1 can be connected in an upper portion of the sensing unit SU. The second electrode 220 and the second trace 220t can be connected at a right side of the sensing unit SU. The second auxiliary electrode 240s and the fourth trace 240t can be connected at a left side of the sensing unit SU.

[0308] Figure 25 FIG. 1 is a diagram schematically illustrating four channels CH-rx according to some embodiments of the present disclosure.

[0309] Referring to Figure 24A and Figure 25 One channel CH-rx can include the second electrode 220-2 and the second auxiliary electrode 240s2 overlapping the second electrode 220-2. For example, when the third direction DR3 (see FIG. 1) is a horizontal direction, the second electrode 220-2 and the second auxiliary electrode 240s2 can be connected in a right portion of the sensing unit SU. In this case, the second electrode 220-2 and the second auxiliary electrode 240s2 can be connected in a lower portion of the sensing unit SU. Figure 24AThe second electrode 220-2 and the second auxiliary electrode 240s2 can overlap each other when viewed from above (for example, in a plan view). The second electrode 220-2 can output a second reception signal PRX2a to the sensor driver 200C, and the second auxiliary electrode 240s2 can be connected to the second electrode 220-2 in a coupling method.

[0310] According to some embodiments of the disclosure, the second auxiliary electrode 240s2 can be electrically connected to the ground in the pen sensing driving mode SS. For example, a fourth pad PD4 electrically connected to the second auxiliary electrode 240s2 can be grounded. That is, the second auxiliary electrode 240s2 can be directly connected to the ground through the fourth trace 240t-2 and the fourth pad PD4.

[0311] A plurality of coupling capacitors Ccp can be defined between the second electrode 220-2 and the second auxiliary electrode 240s2. In the pen sensing mode, the sensor driver 200C can receive an induced current flowing from the second auxiliary electrode 240s2 to the second electrode 220-2 through the coupling capacitors Ccp.

[0312] Figure 26A is an equivalent circuit diagram illustrating a relationship between one channel CH-rx and a pen PN according to some embodiments of the disclosure. Figure 26B is an equivalent circuit diagram illustrating a relationship between one channel CH-rx and a pen PN according to some embodiments of the disclosure.

[0313] Referring to Figure 9 , Figure 25 , Figure 26A and Figure 26B , one channel CH-rx can include the second electrode 220-2 connected to the input terminal IT, and the second auxiliary electrode 240s2 of the fourth electrode 240 connected to the second electrode 220-2 in a coupling method.

[0314] A plurality of coupling capacitors Ccp11, Ccp12, Ccp13, and Ccp14 can be defined between the second electrode 220-2 and the second auxiliary electrode 240s2. In addition, capacitors Cbc1, Cbc2, Cbc3, and Cbc4 are defined in the second electrode 220-2. The capacitors Cbc1, Cbc2, Cbc3, and Cbc4 can be referred to as "parasitic capacitors" or "base capacitors".

[0315] The input terminal IT can correspond to one pad (for example, a second pad PD2) electrically connected between the sensor driver 200C and the second electrode 220-2. One end of the second auxiliary electrode 240s2 can be electrically connected to the fourth trace 240t-2. The other end of the second auxiliary electrode 240s2 can be floating.

[0316] Reference Figure 26A When the pen PN approaches one of the channels CH-rx, a first induced electromotive force Vs(t) can be generated in the second electrode 220-2 by the magnetic field generated by the pen PN, and a second induced electromotive force Va(t) can be generated in the second auxiliary electrode 240s2. A first induced current IN-M and a third induced current IN-B can be generated by the first induced electromotive force Vs(t), and a second induced current IN-A can be generated by the second induced electromotive force Va(t). Accordingly, the total induced current IN input to the input terminal IT can correspond to the sum of the first induced current IN-M, the second induced current IN-A, and the third induced current IN-B.

[0317] For example, it is assumed that the capacitance of each of the capacitors Cbc1, Cbc2, Cbc3, and Cbc4 is Cb, and it is assumed that the capacitance of each of the coupling capacitors Ccp11, Ccp12, Ccp13, and Ccp14 is Cc.

[0318] The first induced current IN-M that varies with time can be represented by the following equation.

[0319]

[0320] The second induced current IN-A that varies with time can be represented by the following equation.

[0321]

[0322] The third induced current IN-B that varies with time can be represented by the following equation.

[0323]

[0324] The first induced current IN-M can be an induced current caused by at least some of the capacitors Cbc1, Cbc2, Cbc3, and Cbc4, and can be referred to as an auxiliary induced current. The first induced current IN-M generated at the first electrode 210 can be referred to as a "first auxiliary induced current." The first induced current IN-M generated in the second electrode 220 can be referred to as a "second auxiliary induced current." Each of the second induced current IN-A and the third induced current IN-B can be an induced current due to at least some of the coupling capacitors Ccp11, Ccp12, Ccp13, and Ccp14, and can be referred to as a "coupling induced current."

[0325] Reference Figure 26BWhen the pen PN approaches one of the channels CH-rx, a first induced electromotive force Vs(t) can be generated in the second electrode 220-2 by the magnetic field generated by the pen PN, and a second induced electromotive force Va(t) can be generated in the second auxiliary electrode 240s2. Because all voltages at both ends of each of the capacitors Cbc1, Cbc2, and Cbc3 disposed between the first induced electromotive force Vs(t) and the input terminal IT are grounded, a current can not flow through the capacitors Cbc1, Cbc2, and Cbc3.

[0326] A first induced current IF-M and a third induced current IF-B can be generated from the first induced electromotive force Vs(t), and a second induced current IF-A can be generated from the second induced electromotive force Va(t). Accordingly, a total induced current IF input to the input terminal IT can correspond to a sum of the first induced current IF-M, the second induced current IF-A, and the third induced current IF-B.

[0327] For example, it is assumed that a capacitance of each of the capacitors Cbc1, Cbc2, Cbc3, and Cbc4 is Cb, and it is assumed that a capacitance of each of the coupling capacitors Ccp11, Ccp12, Ccp13, and Ccp14 is Cc.

[0328] The first induced current IF-M varying over time can be represented by the following equation.

[0329]

[0330] The second induced current IF-A varying over time can be represented by the following equation.

[0331]

[0332] The third induced current IF-B varying over time can be represented by the following equation.

[0333]

[0334] The second induced current IF-A and the third induced current IF-B generated in the second auxiliary electrode 240s2 can additionally be generated from the coupling capacitors Ccp11, Ccp12, Ccp13, and Ccp14. Accordingly, compared to a case in which the second auxiliary electrode 240s2 does not exist, the total induced current IF can increase, and the total induced current IF can be large enough to sense an input of the pen PN.

[0335] Figure 27 FIG. 1 is a diagram schematically illustrating four channels CH-rxa according to some embodiments of the present disclosure. Figure 28A FIG. 2 is an equivalent circuit diagram illustrating a relationship between one channel CH-rxa and a pen PN according to some embodiments of the present disclosure. Figure 28B is an equivalent circuit diagram showing a relationship between one channel CH-rxa and a pen PN according to some embodiments of the present disclosure.

[0336] Referring to Figure 24A and Figure 27 One channel CH-rxa can include a second electrode 220-2 and an edge capacitor Ceg electrically connected to the second electrode 220-2. In the pen sensing driving mode SS, all of the second electrodes 220-2 can be electrically connected to one terminal 220TM through the edge capacitor Ceg. The terminal 220TM can be grounded, or a bias voltage can be applied to the terminal 220TM.

[0337] Referring to Figure 27 and Figure 28A One channel CH-rxa can include one second electrode 220-2 connected to an input terminal IT. The input terminal IT can correspond to a pad electrically connected between the sensor driver 200C and the second electrode 220-2.

[0338] Capacitors Cbc1, Cbc2, Cbc3, and Cbc4 are defined in the second electrode 220-2. The capacitors Cbc1, Cbc2, Cbc3, and Cbc4 can be referred to as "parasitic capacitors" or "base capacitors". Further, the second electrode 220-2 can be electrically connected to an edge capacitor Ceg-t. According to some embodiments of the present disclosure, a capacitance of the edge capacitor Ceg-t can be greater than a capacitance of each of the capacitors Cbc1, Cbc2, Cbc3, and Cbc4.

[0339] Referring to Figure 28A When the pen PN approaches one channel CH-rxa, a first induced electromotive force Vs(t) can be generated in the second electrode 220-2 by a magnetic field generated by the pen PN. Accordingly, an induced current INa can be generated in one channel CH-rxa. One of a non-inverting terminal and an inverting terminal of a charging voltage amplifier can be electrically connected to the input terminal IT, and the other thereof can be grounded. In this case, it is recognized that the input terminal IT is grounded. Accordingly, all of a voltage across the capacitor Cbc1 among the capacitors Cbc1, Cbc2, Cbc3, and Cbc4 is grounded, and thus a current can not flow into the capacitor Cbc1.

[0340] Assuming that a capacitance of each of the capacitors Cbc2, Cbc3, and Cbc4 is Cb, and a capacitance of the edge capacitor Ceg-t is Ce, the induced current INa varying with time can be represented by the following equation.

[0341]

[0342] Referring to Figure 28B When the pen PN approaches one of the channels CH-rxa, an induced current IFa can be generated in one of the channels CH-rxa by the magnetic field generated by the pen PN. The entire voltage across each of the first capacitor Cbc1, the second capacitor Cbc2, and the third capacitor Cbc3 among the capacitors Cbc1, Cbc2, Cbc3, and Cbc4 is grounded, and thus a current can not flow through the capacitors Cbc1, Cbc2, and Cbc3. Assuming that the capacitance of the capacitor Cbc4 is Cb and the capacitance of the edge capacitor Ceg-t is Ce, the induced current IFa varying with time can be represented by the following equation.

[0343]

[0344] Referring to Figure 28A and Figure 28B , the current intensity can be improved by the edge capacitor Ceg-t. Thus, the total induced current IFa can increase compared to a case where the edge capacitor Ceg-t does not exist, and the total induced current IFa can be large enough to sense the input of the pen PN.

[0345] Figure 29 is a graph GP showing the current intensity according to the position of the pen PN for one channel.

[0346] Referring to Figure 29 , the first point PP1 can correspond to the position of the pen PN shown in Figure 26A and Figure 28A , and the second point PP2 can correspond to the position of the pen PN shown in Figure 26B and Figure 28B .

[0347] As described with reference to Figure 25 and Figure 26B , the second induced current IF-A and the third induced current IF-B generated in the second auxiliary electrode 240s2 can additionally be generated by the coupling capacitors Ccp11, Ccp12, Ccp13, and Ccp14. Thus, the total induced current IF can increase, and the total induced current IF can be large enough to sense the input of the pen PN.

[0348] As described with reference to Figure 27 and Figure 28B , the total capacitance can be compensated for (or improved) by the edge capacitor Ceg-t. Thus, the total induced current IFa can increase, and the total induced current IFa can be large enough to sense the input of the pen PN.

[0349] Figure 30 is a graph showing the sensitivity according to the position of the plurality of channels according to a comparative example.

[0350] Figure 16 A first trajectory P-MT1 from a start point STP to an end point EP in the first outer partition region DVA1 and a second trajectory P-MT2 from the start point STP to the end point EP in the second outer partition region DVA3 are shown. The first trajectory P-MT1 and the second trajectory P-MT2 can pass through the first electrode group 220G1, the boundary RIL between the first electrode group 220G1 and the second electrode group 220G2, and the second electrode group 220G2.

[0351] Referring to Figure 16 and Figure 30 , a graph indicating a sensitivity of each of signals received from the second electrodes 220 without adjustment of the gain and the weight is shown. The first graph GP-DVA1bf can correspond to a change in the sensitivity according to the first trajectory P-MT1 in the first outer partition region DVA1, and the second graph GP-DVA3bf can correspond to a change in the sensitivity according to the second trajectory P-MT2 in the second outer partition region DVA3.

[0352] Referring to Figure 30 , it can be identified that the sensitivity is rapidly changed based on the boundary RIL because the gain and the weight are not adjusted. In this case, a coordinate accuracy based on the boundary RIL can be relatively reduced or undesirable. According to some embodiments of the disclosure, an effective region can be detected, and thus at least one of the gain and the weight can be adjusted. Accordingly, a degree of change in the sensitivity at the boundary RIL can be relatively mitigated or eliminated.

[0353] Figure 31 is a graph showing a sensitivity according to a position of a plurality of channels according to some embodiments of the disclosure.

[0354] Figure 31 A graph indicating a sensitivity of signals received from the second electrodes 220 while at least one of the gain and the weight is adjusted is shown. The first graph GP-DVA1 can correspond to a change in the sensitivity according to the first trajectory P-MT1 in the first outer partition region DVA1, and the second graph GP-DVA3 can correspond to a change in the sensitivity according to the second trajectory P-MT2 in the second outer partition region DVA3.

[0355] At least one of the gain and the weight can be adjusted to adjust the sensitivity of signals received from the first electrode group 220G1 and the second electrode group 220G2 divided based on the boundary RIL so that the sensitivity is substantially the same as each other or a difference between the sensitivities is reduced. Accordingly, the sensitivity can be adjusted by using the same (or substantially the same) slope even at the boundary RIL, thereby relatively improving a coordinate detection accuracy.

[0356] Figure 32 is a graph illustrating gain values corresponding to channels according to some embodiments of the disclosure. Figure 33 is a graph illustrating sensitivity according to a pen position of a plurality of channels according to some embodiments of the disclosure.

[0357] Referring to Figure 6 , Figure 32 and Figure 33 , a gain applied to a signal received from the second electrode 220-1 included in the first electrode group 220G1 and a gain applied to a signal received from the second electrode 220-2 included in the second electrode group 220G2 can be determined.

[0358] For example, when the active area is the first outer partition area DVA1, gain values applied to signals received from the second electrode 220-1 and the second electrode 220-2 can be determined as GAIN_1a, GAIN_1b, GAIN_1c, and GAIN_1d, respectively. The GAIN_1a, GAIN_1b, GAIN_1c, and GAIN_1d can be different from each other; some of the GAIN_1a, GAIN_1b, GAIN_1c, and GAIN_1d can be the same as each other; and some of the GAIN_1a, GAIN_1b, GAIN_1c, and GAIN_1d can be different from each other. For example, the GAIN_1a can be the largest, and the GAIN_1d can be the smallest. When the active area is the central partition area DVA2, gain values applied to signals received from the second electrode 220-1 and the second electrode 220-2 can be determined as GAIN_2a, GAIN_2b, GAIN_2c, and GAIN_2d, respectively. The GAIN_2a, GAIN_2b, GAIN_2c, and GAIN_2d can be different from each other; some of the GAIN_2a, GAIN_2b, GAIN_2c, and GAIN_2d can be the same as each other; and some of the GAIN_2a, GAIN_2b, GAIN_2c, and GAIN_2d can be different from each other. When the active area is the second outer partition area DVA3, gain values applied to signals received from the second electrode 220-1 and the second electrode 220-2 can be determined as GAIN_3a, GAIN_3b, GAIN_3c, and GAIN_3d, respectively. The GAIN_3a, GAIN_3b, GAIN_3c, and GAIN_3d can be different from each other; some of the GAIN_3a, GAIN_3b, GAIN_3c, and GAIN_3d can be the same as each other; and some of the GAIN_3a, GAIN_3b, GAIN_3c, and GAIN_3d can be different from each other.

[0359] Referring to Figure 16 and Figure 33 , the first graph GP-DVA1a may correspond to sensitivity variation according to the first track P- MT1 in the first outer partition area DVA1, and the second graph GP-DVA3a may correspond to sensitivity variation according to the second track P- MT2 in the second outer partition area DVA3.

[0360] According to some embodiments of the present disclosure, at least one of the gain and the weight can be determined relative to the signals received from the second electrode 220-1 and the second electrode 220-2. Thus, the sensitivity of the signals received from the first electrode group 220G1 and the second electrode group 220G2 can be substantially the same, and the sensitivity difference depending on the distance can also be eliminated. Thus, both the sensitivity difference depending on the wiring direction and the sensitivity difference depending on the pen position are corrected, thereby relatively improving the pen detection accuracy.

[0361] Figure 34 is a diagram illustrating a partitioned area DVAa according to some embodiments of the present disclosure.

[0362] refer to Figure 6 and Figure 34 The sensing region 200A of the sensor layer 200 may include a plurality of separation regions DVAa defined in the first direction DR1. For example, the plurality of separation regions DVAa may include a first outer separation region DVA1a, a second outer separation region DVA2a, a central separation region DVA3a, a third outer separation region DVA4a, and a fourth outer separation region DVA5a.

[0363] According to some embodiments of the present disclosure, at least one of the gain and weight applied to each of the signals received from the second electrode 220 can be changed according to the effective area in which the pen PN is located within the partition area DVAa. For example, according to the effective area, at least one of the gain and weight applied to each of the signals received from the first electrode group 220G1 located above the boundary RIL can be adjusted; at least one of the gain and weight applied to each of the signals received from the second electrode group 220G2 located below the boundary RIL can be adjusted; and at least one of the gain and weight applied to each of the signals received from the first electrode group 220G1 and at least one of the gain and weight applied to each of the signals received from the second electrode group 220G2 can be adjusted.

[0364] According to some embodiments of the present disclosure, when the active area is far away from the routing area, at least one of the gain and the weight can be increased. Figure 6 and Figure 34In the first electrode group 220G1, the weight applied when the active area is the first outer partition area DVA1a can be greater than the weight applied when the active area is the fourth outer partition area DVA5a. Also, in the second electrode group 220G2, the weight applied when the active area is the first outer partition area DVA1a can be less than the weight applied when the active area is the fourth outer partition area DVA5a.

[0365] In Figure 34 , it is described that the number of partition areas DVAa is 5. However, the number of partition areas DVAa is not limited to the example described in the specification. For example, the number of partition areas DVAa can be two or more, or more than five, and can not be particularly limited thereto. That is, the number of partition areas DVAa can vary according to various embodiments, and any appropriate number of partition areas can be used according to the design of the display apparatus.

[0366] Figure 35A is a graph showing the current sensed at the plurality of channels according to some embodiments of the present disclosure. Figure 35B is a graph showing the current obtained from the differential channels of the plurality of channels according to some embodiments of the present disclosure. Figure 35C is a graph for describing a method for identifying a pen position according to some embodiments of the present disclosure.

[0367] Referring to Figure 6 and Figure 35A , Figure 35A the current sensed from the first electrode 210 or the second electrode 220 is shown in Figure 35A is a graph showing the current sensed in the second channel, and Figure 35B is a graph showing the current obtained from the differential channels of the second channel.

[0368] Referring to Figure 35A , the directions of the currents sensed from the second channels spaced apart from each other with the portion in which the pen PN is located therebetween can be different from each other. Accordingly, based on the position of the pen PN, the direction of the current flowing into the channel on the left can be different from the direction of the current flowing into the channel on the right. Accordingly, the sensor driver 200C can sense the currents flowing in different directions based on the position of the pen PN. Referring to Figure 35B , the sensor driver 200C can sense the currents by differentially sensing the channels adjacent to each other or the channels spaced apart from each other among the second channels. When the sensor driver 200C senses the currents by using the differential sensing, as shown in Figure 29 , the difference in the intensity of the current according to the pen position for one channel can be compensated for.

[0369] Reference Figure 35C The points PTM, PTL, and PTR needed to calculate the position coordinates of the pen PN are selected from the sensed current value graph. Among the points PTM, PTL, and PTR, a point PTM at which the maximum value of the sensed current value (also referred to as a maximum point PTM) can be selected, n points PTL adjacent to the left of the maximum point PTM, and n points PTR adjacent to the right of the maximum point PTM. n can be 1 or more. Figure 35C It is shown that n is 2. The sensor driver 200C can identify the y coordinate of the position of the pen PN from the selected points PTM, PTL, and PTR by using a barycentric method. However, embodiments according to the present disclosure are not particularly limited thereto. For example, the sensor driver 200C can derive a trend line from the selected points PTM, PTL, and PTR, and can also calculate the y coordinate of the pen PN based on a maximum point of the trend line.

[0370] Although aspects of some embodiments of the present disclosure have been described for illustrative purposes, it will be appreciated by those skilled in the art that various modifications and alterations can be made without deviating from the scope and spirit of embodiments according to the present disclosure as disclosed in the appended claims and equivalents thereof. Accordingly, the technical scope of embodiments according to the present disclosure is not limited to the detailed description of the specification, but should be defined by the claims and equivalents thereof.

[0371] As described above, a pen input as well as a touch input can be sensed by using a sensor layer. Since a separate component (e.g., a digitizer) for sensing a pen does not need to be added to an electronic device, an increase in the thickness of the electronic device, an increase in the weight of the electronic device, or a decrease in the flexibility of the electronic device due to the addition of the digitizer can not occur. Furthermore, a sensor driver can be implemented such that at least one of a gain and a weight applied to a signal received from a first electrode group and a second electrode group having different wiring directions from each other varies according to a detected position of a pen. Accordingly, a sensitivity difference according to a change in the wiring direction can be corrected, thereby relatively improving pen detection accuracy.

[0372] While aspects of some embodiments of the present disclosure have been described with reference to some embodiments of the present disclosure, it will be apparent to those of ordinary skill in the art that various changes and modifications can be made thereto without departing from the spirit and scope of the present disclosure as set forth in the appended claims and equivalents thereof.

Claims

1. An electronic device, characterized in that include: a sensor layer defining a peripheral region having a first peripheral region and a second peripheral region, and a main region between the first peripheral region and the second peripheral region; as well as a sensor driver configured to drive the sensor layer, Wherein, the sensor layer comprises: a plurality of first sensing electrodes arranged along a first direction; a plurality of first electrodes arranged along the first direction and respectively overlapping with the plurality of first sensing electrodes; a plurality of second sensing electrodes arranged along a second direction crossing the first direction; and a plurality of lines in the peripheral region and comprising: a first line electrically connected to one of the plurality of second sensing electrodes and in the first peripheral area; a second line electrically connected to another second sensing electrode of the plurality of second sensing electrodes and in the second peripheral area; a third line connected to a first end of one of the plurality of first electrodes; and a fourth line connected to a second end of the one first electrode among the plurality of first electrodes, and wherein a first signal is transmitted from the sensor driver to the third line and a second signal different from the first signal is transmitted from the sensor driver to the fourth line, or A first sensing signal is transmitted from the first line to the sensor driver and a second sensing signal is transmitted from the second line to the sensor driver.

2. The electronic device according to claim 1, wherein The sensor driver includes a charge voltage amplifier electrically connected to at least one of the plurality of second sensing electrodes, and a resistor and a capacitor connected to an input terminal and an output terminal of the charge voltage amplifier, and The sensor driver is further configured to change at least one of the resistor and the capacitor.

3. The electronic device according to claim 1, wherein The sensor driver includes an analog-to-digital converter electrically connected to at least one of the plurality of second sensing electrodes.

4. The electronic device according to claim 1, wherein: The main area includes a plurality of divided areas defined along the first direction, and The induced current caused by the input of the pen is transmitted from the effective area corresponding to the input to the sensor driver.

5. The electronic device according to claim 4, characterized in that The main area includes a first outer partition area, a central partition area, and a second outer partition area defined along the first direction, and The effective area is located in one of the central partition area, the first outer partition area, and the second outer partition area.

6. The electronic device according to claim 1, wherein: The one second sensing electrode among the plurality of second sensing electrodes includes a first portion and a second portion, and the first portion is closer to the first line than the second portion, and A first induced current caused by the input of the pen at the first portion is transmitted to the sensor driver, and a second induced current different from the first induced current caused by the input at the second portion is transmitted to the sensor driver.

7. An electronic device, characterized in that include: a sensor layer defining a main region and a peripheral region; as well as a sensor driver configured to drive the sensor layer, Wherein, the sensor layer comprises: a plurality of first sensing electrodes arranged along a first direction; a plurality of first electrodes arranged along the first direction and respectively overlapping with the plurality of first sensing electrodes; a plurality of second sensing electrodes arranged along a second direction crossing the first direction; and a plurality of lines in the peripheral region and comprising: a first line electrically connected to one of the plurality of second sensing electrodes; a second line electrically connected to a first end of one of the plurality of first electrodes; and a third line electrically connected to the second end of the one first electrode, wherein the one second sensing electrode includes a first portion and a second portion, and the first portion is closer to the first line than the second portion; and wherein a first signal is transmitted from the sensor driver to the second line and a second signal different from the first signal is transmitted from the sensor driver to the third line, or The induced current caused by the input of the pen detected at the first portion or the second portion is transmitted to the sensor driver.

8. The electronic device according to claim 7, wherein: The main area includes a first outer partition area, a central partition area, and a second outer partition area defined in the first direction. The plurality of lines further include a fourth line electrically connected to another second sensing electrode among the plurality of second sensing electrodes. The main area is between the first line and the fourth line. wherein a first sensing signal is transmitted from the one second sensing electrode to the sensor driver and a second sensing signal is transmitted from the other second sensing electrode to the sensor driver, and The valid area corresponding to the input is located in one of the central partition area, the first outer partition area, and the second outer partition area.

9. The electronic device according to claim 8, wherein: A first induced current caused by the input at the first portion is transmitted to the sensor driver, and a second induced current different from the first induced current caused by the input at the second portion is transmitted to the sensor driver.

10. An electronic device, characterized in that include: a sensor layer defining a main region and a peripheral region; as well as a sensor driver configured to drive the sensor layer, Wherein, the sensor layer comprises: a plurality of first sensing electrodes arranged along a first direction; a plurality of first electrodes arranged along the first direction and respectively overlapping the plurality of first sensing electrodes; a plurality of second sensing electrodes arranged along a second direction crossing the first direction; and a plurality of lines in the peripheral region and comprising: a first line electrically connected to one of the plurality of second sensing electrodes; a second line electrically connected to a first end of one of the plurality of first electrodes; and a third line electrically connected to the second end of the one first electrode, wherein the one second sensing electrode includes a first portion and a second portion, and the first portion is closer to the first line than the second portion; and A first induced current caused by the input of the pen at the first portion is transmitted to the sensor driver, and a second induced current different from the first induced current caused by the input at the second portion is transmitted to the sensor driver.

11. The electronic device according to claim 10, characterized in that The main area is defined by a first outer partition area, a central partition area, and a second outer partition area defined in the first direction, The plurality of lines further include a fourth line electrically connected to another second sensing electrode among the plurality of second sensing electrodes. wherein the main area is between the first line and the fourth line, wherein a first sensing signal is transmitted from the one second sensing electrode to the sensor driver and a second sensing signal is transmitted from the other second sensing electrode to the sensor driver, and The effective area corresponding to the input of the pen is located in one of the central partition area, the first outer partition area, and the second outer partition area.

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