Electronic device and interface device including the same

Abstract

An electronic device according to one embodiment of the present invention includes a display layer, a sensor layer operating in a first mode that detects a first input by touch and a second mode different from the first mode, and a sensor control unit, wherein the second mode operates in a plurality of frames, and each of the plurality of frames is provided with a downlink signal and a sensing signal, wherein the downlink signal detects a second input by an input device, and the sensing signal detects the first input, and wherein, when the first input is detected during the second mode, the sensor control unit outputs a first coordinate of the first input based on the sensing signal of at least one frame among the plurality of frames in which the first input is detected, and can correct a second coordinate of the second input based on the first coordinate during the time of at least two frames including the at least one frame.

Description

Technology Field

[0001] The present invention relates to an electronic device with improved sensing reliability and an interface device including the same. Background Technology

[0002] An electronic device can detect external input applied from outside the electronic device. The external input may be user input. User input may include various forms of external input, such as parts of the user's body, light, heat, a pen, or pressure. The electronic device may recognize the coordinates of the pen using an electromagnetic resonance (EMR) method or using an active electrostatic (AES) method. The problem to be solved

[0003] The present invention aims to provide an electronic device with improved detection reliability and an interface device including the same. means of solving the problem

[0004] An electronic device according to one embodiment of the present invention comprises a display layer, a sensor layer disposed on the display layer and operating in a first mode that detects a first input by touch and a second mode different from the first mode, and a sensor control unit that controls the sensor layer, wherein the second mode operates in a plurality of frames, and each of the plurality of frames is provided with a downlink signal and a sensing signal, wherein the downlink signal detects a second input by an input device and the sensing signal detects the first input, and wherein when the first input is detected during the second mode, the sensor control unit outputs a first coordinate of the first input based on the sensing signal of at least one frame among the plurality of frames in which the first input is detected, and when the first input is detected during the second mode, the sensor control unit can correct a second coordinate of the second input based on the first coordinate during the time of at least two frames including the at least one frame.

[0005] The sensor control unit above may ignore at least one of the second coordinates detected in at least two frames based on the first coordinate.

[0006] The present invention further includes a display control unit that drives the display layer in units of display frames, wherein the sensor control unit outputs information about a path connecting the second coordinates detected in two frames spaced apart with at least one frame in which the ignored at least one second coordinate is detected, and the display control unit can display the path on the display layer in the display frame after the at least two frames.

[0007] The sensor control unit transmits an uplink signal to the input device and can drive the sensor layer in the first mode or the second mode depending on whether an acknowledgment signal is received from the input device.

[0008] The sensor control unit may drive the sensor layer in the first mode when it does not receive the acknowledgment response signal, and the sensor control unit may drive the sensor layer in the second mode when it receives the acknowledgment response signal.

[0009] The sensor layer may include a plurality of first electrodes each extending in a first direction and a plurality of second electrodes each extending in a second direction intersecting the first direction.

[0010] The downlink signal may include a first signal including first information of the input device, a second signal including second information different from the first information, and a third signal including third information different from the first information and the second information.

[0011] The first information above includes coordinate information of the input device, and the third information above may include tilt information of the input device.

[0012] Each of the first signal and the second signal is provided as at least one, and the downlink signal is provided in the order of the first signal, the second signal, the first signal, the third signal, the first signal, the second signal, and the first signal, and the sensing signal is provided after the last first signal, and the sensing signal may include a value detected by capacitive coupling of the plurality of first electrodes and the plurality of second electrodes.

[0013] Each of the first signal and the second signal has a first signal frequency, and the third signal may have a second signal frequency different from the first signal frequency.

[0014] The first signal frequency may be greater than the second signal frequency.

[0015] An interface device according to one embodiment of the present invention comprises an electronic device including a display layer, a sensor layer disposed on the display layer, and a sensor control unit that controls the sensor layer, and an input device that communicates with the electronic device. The sensor layer is driven by a plurality of frames and detects a first coordinate by touch and a second coordinate by the input device. Each of the plurality of frames is sequentially provided with an uplink signal, a downlink signal, and a sensing signal. The uplink signal is provided from the sensor layer to the input device, and the downlink signal is provided from the input device to the sensor layer. The sensing signal detects a touch on the sensor layer. When the touch is detected, the control unit outputs the first coordinate based on the sensing signal of at least one frame among the plurality of frames in which the touch is detected. The sensor control unit can correct the second coordinate based on the first coordinate during the time of at least two frames including the at least one frame.

[0016] The electronic device further includes a display control unit that drives the display layer in units of display frames, and the sensor control unit outputs information about a path connecting the coordinates of the input device detected in two frames spaced apart with at least one frame in which the touch is detected among the plurality of frames, and the display control unit can display the path on the display layer in the display frame after the at least two frames.

[0017] The above input device may include a housing, a power supply unit disposed within the housing, a control unit disposed within the housing and receiving power from the power supply unit, a communication module that communicates the uplink signal and the downlink signal with the sensor layer, and a pen electrode electrically connected to the communication module.

[0018] The above control unit generates a downlink signal according to a predetermined protocol, and the predetermined protocol may include the Universal Stylus Initiative (USI).

[0019] The above downlink signal includes a first signal including first information of the input device, a second signal including second information different from the first information of the input device, and a third signal including third information different from the first information and the second information of the input device, wherein the first information includes coordinate information of the input device and the third information may include tilt information of the input device.

[0020] Each of the first signal and the second signal is provided as at least one, and the downlink signal is provided in the order of the first signal, the second signal, the first signal, the third signal, the first signal, the second signal, and the first signal, and the sensing signal may be provided after the last first signal.

[0021] Each of the first signal and the second signal has a first signal frequency, and the third signal may have a second signal frequency different from the first signal frequency.

[0022] The first signal frequency may be greater than the second signal frequency.

[0023] The electronic device can receive the second signal and the third signal simultaneously. Effects of the invention

[0024] As described above, when a first input and a second input are detected simultaneously, the sensor control unit may output a first coordinate of the first input based on a sensing signal of at least one frame in which the first input is detected among a plurality of frames of the sensor layer. The sensor control unit may correct a second coordinate of the second input based on the first coordinate during the time period of at least two frames including at least one frame in which the first input is detected among the plurality of frames. The linearity of a straight line displayed when drawing a straight line on an electronic device using an input device can be improved by the corrected second coordinate. Accordingly, an electronic device and an interface device with improved detection reliability can be provided. Brief explanation of the drawing

[0025] FIG. 1 is a perspective view illustrating an interface device according to one embodiment of the present invention. FIG. 2 is a perspective view illustrating an interface device according to one embodiment of the present invention. FIG. 3 is a block diagram schematically illustrating an electronic device and an input device according to one embodiment of the present invention. FIG. 4a is a cross-sectional view of an electronic device according to one embodiment of the present invention. FIG. 4b is a cross-sectional view of an electronic device according to one embodiment of the present invention. FIG. 5 is a cross-sectional view of an electronic device according to one embodiment of the present invention. FIG. 6 is a block diagram of a display layer and a display control unit according to one embodiment of the present invention. FIG. 7 is a block diagram of a sensor layer and a sensor control unit according to an embodiment of the present invention. FIG. 8 is a conceptual diagram illustrating the operation of a display layer and a sensor layer according to an embodiment of the present invention. FIG. 9 is a conceptual diagram illustrating the operation in a first mode according to an embodiment of the present invention. FIGS. 10a and FIGS. 10b are drawings illustrating a sensor layer operating in a first mode according to an embodiment of the present invention. FIG. 11 is a conceptual diagram illustrating operation in a second mode according to an embodiment of the present invention. FIGS. 12a and FIGS. 12b are drawings illustrating a sensor layer operating in a second mode according to an embodiment of the present invention. FIG. 13 illustrates a sensor layer to which a first input and a second input are simultaneously applied according to an embodiment of the present invention. FIG. 14 is a conceptual diagram illustrating the operation of an electronic device and an input device according to one embodiment of the present invention. FIG. 15 is a conceptual diagram illustrating the operation of an electronic device, with the AA' area of ​​FIG. 14 enlarged and illustrated according to one embodiment of the present invention. FIG. 16 is a conceptual diagram illustrating the operation of a display layer and a sensor layer according to an embodiment of the present invention. FIG. 17 is a conceptual diagram illustrating operation in a second mode according to an embodiment of the present invention. Specific details for implementing the invention

[0026] In this specification, where a component (or region, layer, part, etc.) is described as being “on,” “connected,” or “joined” another component, it means that it may be directly placed / connected / joined on the other component, or that a third component may be placed between them.

[0027] Identical reference numerals denote identical components. Additionally, in the drawings, the thicknesses, proportions, and dimensions of components are exaggerated for the effective illustration of the technical content. “And / or” includes all one or more combinations that the associated components may define.

[0028] Terms such as "first," "second," etc., may be used to describe various components, but said components should not be limited by said terms. These terms are used solely for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be named the second component, and similarly, the second component may be named the first component. A singular expression includes a plural expression unless the context clearly indicates otherwise.

[0029] Additionally, terms such as “below,” “lower,” “above,” and “upper” are used to describe the relationships between the components depicted in the drawings. These terms are relative concepts and are described based on the directions indicated in the drawings.

[0030] Terms such as "include" or "have" are intended to specify the existence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, and should be understood as not precluding the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

[0031] Unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as generally understood by those skilled in the art to which the present invention pertains. Furthermore, terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology, and should not be interpreted in an overly ideal or overly formal sense unless explicitly defined herein.

[0032] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0033] FIG. 1 is a perspective view illustrating an interface device according to one embodiment of the present invention.

[0034] Referring to FIG. 1, the interface device (INF) may include an electronic device (1000) and an input device (2000).

[0035] The electronic device (1000) may be a device that is activated by an electrical signal. For example, the electronic device (1000) may be a mobile phone, tablet, car navigation system, game console, or wearable device, but is not limited thereto. In FIG. 1, the electronic device (1000) is exemplarily shown as a mobile phone.

[0036] An active area (1000A) and a peripheral area (1000NA) may be defined in the electronic device (1000). The electronic device (1000) may display an image through the active area (1000A). The active area (1000A) may include a surface defined by a first direction (DR1) and a second direction (DR2). The peripheral area (1000NA) may surround the periphery of the active area (1000A).

[0037] The thickness direction of the electronic device (1000) may be parallel to a third direction (DR3) that intersects the first direction (DR1) and the second direction (DR2). Accordingly, the front (or top) and back (or bottom) surfaces of the components constituting the electronic device (1000) may be defined based on the third direction (DR3).

[0038] The electronic device (1000) can display an image (IM) toward a third direction (DR3). The image (IM) may include a still image as well as a dynamic image. In FIG. 1, a clock and icons are shown as examples of the image (IM).

[0039] The electronic device (1000) can detect inputs applied from outside the electronic device (1000). The external inputs may include various forms of external inputs such as parts of the user's body, light, heat, or pressure. The external inputs may be referred to as first inputs.

[0040] The electronic device (1000) illustrated in FIG. 1 can detect input by touch of a user and input by an input device (2000). The input device (2000) may refer to a device other than the user's body. Input by the input device (2000) may be referred to as a second input. For example, the input device (2000) may be an active pen, a stylus pen, a touch pen, or an electronic pen.

[0041] The electronic device (1000) and the input device (2000) may be capable of bidirectional communication. The electronic device (1000) may provide an uplink signal to the input device (2000). For example, the uplink signal may include a synchronization signal or information of the electronic device (1000), but is not specifically limited thereto. The input device (2000) may provide a downlink signal to the electronic device (1000). The downlink signal may include a synchronization signal or status information of the input device (2000).

[0042] FIG. 2 is a perspective view illustrating an interface device according to an embodiment of the present invention. In describing FIG. 2, the same reference numerals are used for components described through FIG. 1, and descriptions thereof are omitted.

[0043] Referring to FIG. 2, the electronic device (1000-1) can display an image through an active area (1000A-1). FIG. 2 illustrates the electronic device (1000-1) in a folded state at a predetermined angle. When the electronic device (1000-1) is unfolded, the active area (1000A-1) may include a plane defined by a first direction (DR1) and a second direction (DR2).

[0044] The active region (1000A-1) may include a first region (1000A1), a second region (1000A2), and a third region (1000A3). The first region (1000A1), the second region (1000A2), and the third region (1000A3) may be defined sequentially in a first direction (DR1). The second region (1000A2) may be bent with respect to a folding axis (1000FX) extending along the second direction (DR2). Accordingly, the first region (1000A1) and the third region (1000A3) may be referred to as non-folding regions, and the second region (1000A2) may be referred to as a folding region.

[0045] When the electronic device (1000-1) is folded, the first region (1000A1) and the third region (1000A3) may face each other. Therefore, in a fully folded state, the active region (1000A-1) may not be exposed to the outside, which may be referred to as in-folding. However, this is exemplary and the operation of the electronic device (1000-1) is not limited thereto.

[0046] For example, in one embodiment of the present invention, when the electronic device (1000-1) is folded, the first region (1000A1) and the third region (1000A3) may be opposite each other. Thus, in the folded state, the active region (1000A-1) may be exposed to the outside, which may be referred to as out-folding.

[0047] The electronic device (1000-1) may be capable of only one of in-folding or out-folding operations. Alternatively, the electronic device (1000-1) may be capable of both in-folding and out-folding operations. In this case, the same area of ​​the electronic device (1000-1), for example, the second area (1000A2), may be in-folded and out-folded.

[0048] In FIG. 2, one folding region and two non-folding regions are illustrated as examples, but the number of folding regions and non-folding regions is not limited thereto. For example, the electronic device (1000-1) may include more than two non-folding regions and multiple folding regions arranged between adjacent non-folding regions.

[0049] In FIG. 2, the folding axis (1000FX) is exemplarily shown as being extended in a second direction (DR2), but the present invention is not limited thereto. For example, the folding axis (1000FX) may be extended along a direction parallel to the first direction (DR1). In this case, the first region (1000A1), the second region (1000A2), and the third region (1000A3) may be arranged sequentially along the second direction (DR2).

[0050] The active area (1000A-1) may overlap with at least one electronic module. For example, the electronic modules may include a camera module and a proximity light sensor. The electronic modules may receive an external input transmitted through the active area (1000A-1) or provide an output through the active area (1000A-1). A portion of the active area (1000A-1) that overlaps with the camera module and the proximity light sensor may have a higher transmittance than another portion of the active area (1000A-1). Therefore, it is not necessary to provide an area for multiple electronic modules to be placed in the surrounding area (1000NA-1) around the active area (1000A-1). As a result, the area ratio of the active area (1000A-1) to the front of the electronic device (1000-1) may be increased.

[0051] The electronic device (1000-1) and the input device (2000) may be capable of bidirectional communication. The electronic device (1000-1) may provide an uplink signal to the input device (2000). The input device (2000) may provide a downlink signal to the electronic device (1000-1). The electronic device (1000-1) may detect the coordinates of the input device (2000) using the signal provided from the input device (2000).

[0052] FIG. 3 is a block diagram schematically illustrating an electronic device and an input device according to one embodiment of the present invention.

[0053] Referring to FIG. 3, the electronic device (1000) may include a display layer (100), a sensor layer (200), a display control unit (100C), a sensor control unit (200C), and a main control unit (1000C).

[0054] The display layer (100) may be a configuration that substantially generates an image. The display layer (100) may be a light-emitting display layer, for example, the display layer (100) may be an organic light-emitting display layer, a quantum dot display layer, a micro LED display layer, or a nano LED display layer.

[0055] The sensor layer (200) can be placed on the display layer (100). The sensor layer (200) can detect external input applied from the outside. The sensor layer (200) can detect a first input by an input device (2000) and a second input by the user's body (3000).

[0056] The main control unit (1000C) can control the overall operation of the electronic device (1000). For example, the main control unit (1000C) can control the operation of the display control unit (100C) and the sensor control unit (200C). The main control unit (1000C) may include at least one microprocessor, and the main control unit (1000C) may be referred to as a host.

[0057] The display control unit (100C) can control the display layer (100). The main control unit (1000C) may further include a graphics controller. The display control unit (100C) can receive image data (RGB) and a control signal (D-CS) from the main control unit (1000C). The control signal (D-CS) may include various signals. For example, the control signal (D-CS) may include an input vertical synchronization signal, an input horizontal synchronization signal, a main clock, and a data enable signal. Based on the control signal (D-CS), the display control unit (100C) can generate a vertical synchronization signal and a horizontal synchronization signal to control the timing of providing signals to the display layer (100).

[0058] The sensor control unit (200C) can control the sensor layer (200). The sensor control unit (200C) can receive a control signal (I-CS) from the main control unit (1000C). The control signal (I-CS) may include a mode determination signal and a clock signal that determine the driving mode of the sensor control unit (200C). The sensor control unit (200C) can operate in a first mode that detects a first input (TC1) by the user's body (3000) or in a second mode that detects a second input (TC2) by the input device (2000) based on the control signal (I-CS). The sensor control unit (200C) can control the sensor layer (200) in the first mode or the second mode to be described later based on the mode determination signal.

[0059] The sensor control unit (200C) can calculate coordinate information of a first input or a second input based on a signal received from the sensor layer (200) and provide a coordinate signal (I-SS) having coordinate information to the main control unit (1000C). The main control unit (1000C) executes an operation corresponding to the user input based on the coordinate signal (I-SS). For example, the main control unit (1000C) can operate the display control unit (100C) so that a new application image is displayed on the display layer (100) based on the coordinate signal (I-SS).

[0060] The input device (2000) may include a housing (2100), a power supply unit (2200), a control unit (2300), a communication module (2400), and a pen electrode (2500). However, the components constituting the input device (2000) are not limited to the components listed above. For example, the input device (2000) may further include an electrode switch for switching between a signal transmission mode and a signal reception mode, a pressure sensor for detecting pressure, a memory for storing certain information, or a rotation sensor for detecting rotation.

[0061] The housing (2100) may have a pen shape and may have a receiving space formed inside. A power supply unit (2200), a control unit (2300), a communication module (2400), and a pen electrode (2500) may be housed in the receiving space defined inside the housing (2100).

[0062] The power supply unit (2200) can supply power to the control unit (2300), communication module (2400), etc. inside the input device (2000). The power supply unit (2200) may include a battery or a high-capacity capacitor.

[0063] The control unit (2300) can control the operation of the input device (2000). The control unit (2300) may be an application-specific integrated circuit (ASIC). The control unit (2300) may be configured to operate according to a designed program.

[0064] The communication module (2400) may include a transmitting circuit (2410) and a receiving circuit (2420). The transmitting circuit (2410) may output a downlink signal (DLS) to the sensor layer (200). The receiving circuit (2420) may receive an uplink signal (ULS) provided from the sensor layer (200). The transmitting circuit (2410) may receive a signal provided from the control unit (2300) and modulate it into a signal that can be sensed by the sensor layer (200), and the receiving circuit (2420) may modulate the signal provided from the sensor layer (200) into a signal that can be processed by the control unit (2300).

[0065] The pen electrode (2500) may be electrically connected to the communication module (2400). A portion of the pen electrode (2500) may protrude from the housing (2100). Alternatively, the input device (2000) may further include a cover housing that covers the pen electrode (2500) exposed from the housing (2100). Alternatively, the pen electrode (2500) may be embedded inside the housing (2100).

[0066] FIG. 4a is a cross-sectional view of an electronic device according to one embodiment of the present invention.

[0067] Referring to FIG. 4a, the electronic device (1000) may include a display layer (100) and a sensor layer (200). The display layer (100) may include a base layer (110), a circuit layer (120), a light-emitting element layer (130), and an encapsulation layer (140).

[0068] The base layer (110) may be a member that provides a base surface on which the circuit layer (120) is disposed. The base layer (110) may be a glass substrate, a metal substrate, or a polymer substrate. However, the embodiments are not limited thereto, and the base layer (110) may be an inorganic layer, an organic layer, or a composite material layer.

[0069] The base layer (110) may have a multilayer structure. For example, the base layer (110) may include a first synthetic resin layer, a silicon oxide (SiOx) layer disposed on the first synthetic resin layer, an amorphous silicon (a-Si) layer disposed on the silicon oxide layer, and a second synthetic resin layer disposed on the amorphous silicon layer. The silicon oxide layer and the amorphous silicon layer may be referred to as base barrier layers.

[0070] Each of the first and second synthetic resin layers may comprise a polyimide-based resin. Additionally, each of the first and second synthetic resin layers may comprise at least one of an acrylate-based resin, a methacrylate-based resin, a polyisoprene-based resin, a vinyl-based resin, an epoxy-based resin, a urethane-based resin, a cellulose-based resin, a siloxane-based resin, a polyamide-based resin, and a perylene-based resin. Meanwhile, in this specification, "~~"-based resin means that it comprises a functional group of "~~".

[0071] A circuit layer (120) may be placed on a base layer (110). The circuit layer (120) may include an insulating layer, a semiconductor pattern, a conductive pattern, and a signal line, etc. An insulating layer, a semiconductor layer, and a conductive layer are formed on the base layer (110) by means such as coating or deposition, and subsequently, the insulating layer, the semiconductor layer, and the conductive layer may be selectively patterned through a plurality of photolithography processes. After that, the semiconductor pattern, the conductive pattern, and the signal line included in the circuit layer (120) may be formed.

[0072] The light-emitting element layer (130) may be disposed on the circuit layer (120). The light-emitting element layer (130) may include a light-emitting element. For example, the light-emitting element layer (130) may include an organic light-emitting material, a quantum dot, a quantum rod, a micro LED, or a nano LED.

[0073] The encapsulation layer (140) can be placed on the light-emitting element layer (130). The encapsulation layer (140) can protect the light-emitting element layer (130) from foreign substances such as moisture, oxygen, and dust particles.

[0074] The sensor layer (200) can be formed on the display layer (100) through a continuous process. In this case, the sensor layer (200) may be described as being placed directly on the display layer (100). Being placed directly means that no third component is placed between the sensor layer (200) and the display layer (100). That is, a separate adhesive member may not be placed between the sensor layer (200) and the display layer (100). Alternatively, the sensor layer (200) may be bonded to the display layer (100) through an adhesive member. The adhesive member may include a conventional adhesive or a pressure-sensitive adhesive.

[0075] FIG. 4b is a cross-sectional view of an electronic device according to one embodiment of the present invention.

[0076] Referring to FIG. 4b, the electronic device (1000-1) may include a display layer (100-1) and a sensor layer (200-1). The display layer (100-1) may include a base substrate (110-1), a circuit layer (120-1), a light-emitting element layer (130-1), an encapsulation substrate (140-1), and a bonding member (150-1).

[0077] The base substrate (110-1) and the encapsulation substrate (140-1) may each be a glass substrate, a metal substrate, or a polymer substrate, but are not specifically limited thereto.

[0078] A bonding member (150-1) may be disposed between a base substrate (110-1) and an encapsulation substrate (140-1). The bonding member (150-1) may bond the encapsulation substrate (140-1) to the base substrate (110-1) or the circuit layer (120-1). The bonding member (150-1) may include an inorganic or organic material. For example, the inorganic material may include a frit seal, and the organic material may include a photocurable resin or a photoplastic resin. However, the material constituting the bonding member (150-1) is not limited to the above examples.

[0079] The sensor layer (200-1) may be placed directly on the encapsulation substrate (140-1). Being placed directly means that no third component is placed between the sensor layer (200-1) and the encapsulation substrate (140-1). That is, a separate adhesive member may not be placed between the sensor layer (200-1) and the display layer (100-1). However, this is not limited thereto, and an adhesive layer may be further placed between the sensor layer (200-1) and the encapsulation substrate (140-1).

[0080] FIG. 5 is a cross-sectional view of an electronic device according to an embodiment of the present invention. In describing FIG. 5, the same reference numerals are used for the components described through FIG. 4a, and the description thereof is omitted.

[0081] Referring to FIG. 5, at least one inorganic layer may be formed on the upper surface of the base layer (110). The inorganic layer may include at least one of aluminum oxide, titanium oxide, silicon oxide, silicon oxynitride, zirconium oxide, and hafnium oxide. The inorganic layer may be formed in multiple layers. The multiple inorganic layers may constitute a barrier layer and / or a buffer layer. In this embodiment, the display layer (100) is shown to include a buffer layer (BFL).

[0082] The buffer layer (BFL) can improve the bonding strength between the base layer (110) and the semiconductor pattern. The buffer layer (BFL) may include a silicon oxide layer and a silicon nitride layer, and the silicon oxide layer and the silicon nitride layer may be stacked alternately.

[0083] A semiconductor pattern may be placed on a buffer layer (BFL). The semiconductor pattern may include polysilicon. However, it is not limited thereto, and the semiconductor pattern may include amorphous silicon, low-molecular-weight silicon, or oxide semiconductor.

[0084] FIG. 5 illustrates only a portion of the semiconductor pattern, and additional semiconductor patterns may be placed in other areas. The semiconductor pattern may be arranged according to a specific rule across the pixels. The electrical properties of the semiconductor pattern may differ depending on whether it is doped. The semiconductor pattern may include a first region with high conductivity and a second region with low conductivity. The first region may be doped with an N-type dopant or a P-type dopant. A P-type transistor may include a doped region doped with a P-type dopant, and an N-type transistor may include a doped region doped with an N-type dopant. The second region may be an undoped region or may be doped at a lower concentration compared to the first region.

[0085] The conductivity of the first region is greater than that of the second region and can substantially function as an electrode or signal line. The second region can substantially correspond to the active (or channel) of the transistor. In other words, a part of the semiconductor pattern may be the active of the transistor, another part may be the source or drain of the transistor, and yet another part may be a connecting electrode or a connecting signal line.

[0086] Each pixel may have an equivalent circuit including seven transistors, one capacitor, and a light-emitting element, and the equivalent circuit of the pixel may be modified in various forms. In FIG. 5, one transistor (100PC) and a light-emitting element (100PE) included in the pixel are illustrated as examples.

[0087] The transistor (100PC) may include a source (SC1), an active (A1), a drain (D1), and a gate (G1). The source (SC1), the active (A1), and the drain (D1) may be formed from a semiconductor pattern. The source (SC1) and the drain (D1) may extend in opposite directions from the active (A1) in a cross-section. FIG. 5 illustrates a portion of a connection signal line (SCL) formed from a semiconductor pattern. Although not separately illustrated, the connection signal line (SCL) may be electrically connected to the drain (D1) of the transistor (100PC) in a planar plane.

[0088] The first insulating layer (10) may be placed on the buffer layer (BFL). The first insulating layer (10) may overlap in common with a plurality of pixels and cover a semiconductor pattern. The first insulating layer (10) may be an inorganic layer and / or an organic layer and may have a single-layer or multi-layer structure. The first insulating layer (10) may include at least one of aluminum oxide, titanium oxide, silicon oxide, silicon nitride, silicon oxynitride, zirconium oxide, and hafnium oxide. In this embodiment, the first insulating layer (10) may be a single-layer silicon oxide layer. The insulating layer of the circuit layer (120) described below, as well as the first insulating layer (10), may be an inorganic layer and / or an organic layer and may have a single-layer or multi-layer structure. The inorganic layer may include at least one of the materials described above, but is not limited thereto.

[0089] The gate (G1) is placed on the first insulating layer (10). The gate (G1) may be part of a metal pattern. The gate (G1) overlaps the active (AL). In the process of doping the semiconductor pattern, the gate (G1) may function as a mask.

[0090] The second insulating layer (20) is disposed on the first insulating layer (10) and can cover the gate (G1). The second insulating layer (20) can overlap the pixels in common. The second insulating layer (20) may be an inorganic layer and / or an organic layer and may have a single layer or a multilayer structure. The second insulating layer (20) may include at least one of silicon oxide, silicon nitride, and silicon oxynitride. In this embodiment, the second insulating layer (20) may have a multilayer structure including a silicon oxide layer and a silicon nitride layer.

[0091] A third insulating layer (30) may be placed on top of a second insulating layer (20). The third insulating layer (30) may have a single layer or a multilayer structure. For example, the third insulating layer (30) may have a multilayer structure including a silicon oxide layer and a silicon nitride layer.

[0092] The first connecting electrode (CNE1) can be placed on the third insulating layer (30). The first connecting electrode (CNE1) can be connected to a connecting signal line (SCL) through a contact hole (CNT-1) penetrating the first, second, and third insulating layers (10, 20, 30).

[0093] The fourth insulating layer (40) may be placed on the third insulating layer (30). The fourth insulating layer (40) may be a single layer of silicon oxide. The fifth insulating layer (50) may be placed on the fourth insulating layer (40). The fifth insulating layer (50) may be an organic layer.

[0094] The second connecting electrode (CNE2) can be placed on the fifth insulating layer (50). The second connecting electrode (CNE2) can be connected to the first connecting electrode (CNE1) through a contact hole (CNT-2) that penetrates the fourth insulating layer (40) and the fifth insulating layer (50).

[0095] The sixth insulating layer (60) is placed on the fifth insulating layer (50) and can cover the second connecting electrode (CNE2). The sixth insulating layer (60) may be an organic layer.

[0096] A light-emitting element layer (130) may be disposed on a circuit layer (120). The light-emitting element layer (130) may include a light-emitting element (100PE). For example, the light-emitting element layer (130) may include an organic light-emitting material, a quantum dot, a quantum rod, a micro LED, or a nano LED. In the following description, the light-emitting element (100PE) is described as an example of being an organic light-emitting element, but is not particularly limited thereto.

[0097] The light-emitting element (100PE) may include a first electrode (AE), a light-emitting layer (EL), and a second electrode (CE). The first electrode (AE) may be placed on the sixth insulating layer (60). The first electrode (AE) may be connected to the second connecting electrode (CNE2) through a contact hole (CNT-3) penetrating the sixth insulating layer (60).

[0098] The pixel defining film (70) is placed 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 film (70). The opening (70-OP) of the pixel defining film (70) exposes at least a portion of the first electrode (AE).

[0099] The active region (1000A, see FIG. 1) may include a light-emitting region (PXA) and a non-light-emitting region (NPXA) adjacent to the light-emitting region (PXA). The non-light-emitting region (NPXA) may surround the light-emitting region (PXA). In this embodiment, the light-emitting region (PXA) is defined to correspond to a portion of the first electrode (AE) exposed by the opening (70-OP).

[0100] The light-emitting layer (EL) can be placed on the first electrode (AE). The light-emitting layer (EL) can be placed in an area corresponding to the opening (70-OP). That is, the light-emitting layer (EL) can be formed separately for each pixel. When the light-emitting layer (EL) is formed separately for each pixel, each of the light-emitting layers (EL) can emit light of at least one color among blue, red, and green. However, it is not limited thereto, and the light-emitting layer (EL) may be connected to the pixels and provided in common. In this case, the light-emitting layer (EL) may provide blue light or white light.

[0101] The second electrode (CE) can be placed on the light-emitting layer (EL). The second electrode (CE) has a single shape and can be placed commonly on a plurality of pixels.

[0102] Although not shown, a hole control layer may be disposed between the first electrode (AE) and the light-emitting layer (EL). The hole control layer may be disposed in common in the light-emitting region (PXA) and the non-light-emitting region (NPXA). The hole control layer includes a hole transport layer and may further include a hole injection layer. An electronic control layer may be disposed between the light-emitting layer (EL) and the second electrode (CE). The electronic control layer includes an electron transport layer and may further include an electron injection layer. The hole control layer and the electronic control layer may be formed in common across a plurality of pixels using an open mask.

[0103] The encapsulation layer (140) may be disposed on the light-emitting element layer (130). The encapsulation layer (140) may include sequentially stacked inorganic layers, organic layers, and inorganic layers, but the layers constituting the encapsulation layer (140) are not limited thereto.

[0104] Inorganic layers can protect the light-emitting element layer (130) from moisture and oxygen, and organic layers can protect the light-emitting element layer (130) from foreign substances such as dust particles. Inorganic layers may include a silicon nitride layer, a silicon oxynitride layer, a silicon oxide layer, a titanium oxide layer, or an aluminum oxide layer. Organic layers may include an acrylic-based organic layer, but are not limited thereto.

[0105] The sensor layer (200) can be formed on the display layer (100) through a continuous process. In this case, the sensor layer (200) may be described as being placed directly on the display layer (100). Being placed directly means that no third component is placed between the sensor layer (200) and the display layer (100). That is, a separate adhesive member may not be placed between the sensor layer (200) and the display layer (100). Alternatively, the sensor layer (200) may be bonded to the display layer (100) through an adhesive member. The adhesive member may include a conventional adhesive or a pressure-sensitive adhesive.

[0106] The sensor layer (200) may include a base insulating layer (201), a first conductive layer (202), a sensing insulating layer (203), a second conductive layer (204), and a cover insulating layer (205).

[0107] The base insulating layer (201) may be an inorganic layer comprising at least one of silicon nitride, silicon oxynitride, and silicon oxide. Alternatively, the base insulating layer (201) may be an organic layer comprising epoxy resin, acrylic resin, or imide-based resin. The base insulating layer (201) may have a single-layer structure or a multi-layer structure stacked along the third direction (DR3).

[0108] Each of the first conductive layer (202) and the second conductive layer (204) may have a single-layer structure or a multi-layer structure stacked along the third direction (DR3).

[0109] The single-layer conductive layer may include a metal layer or a transparent conductive layer. The metal layer may include molybdenum, silver, titanium, copper, aluminum, or alloys thereof. The transparent conductive layer may include a transparent conductive oxide such as indium tin oxide (ITO), indium zinc oxide (IZO), zinc oxide (ZnO), or indium zinc tin oxide (IZTO). Additionally, the transparent conductive layer may include a conductive polymer such as PEDOT, metal nanowires, graphene, etc.

[0110] The conductive layer of the multilayer structure may include metal layers. The metal layers may have a three-layer structure, for example, titanium / aluminum / titanium. The conductive layer of the multilayer structure may include at least one metal layer and at least one transparent conductive layer.

[0111] At least one of the sensing insulating layer (203) and the cover insulating layer (205) may include an inorganic film. The inorganic film may include at least one of aluminum oxide, titanium oxide, silicon oxide, silicon nitride, silicon oxynitride, zirconium oxide, and hafnium oxide.

[0112] At least one of the sensing insulating layer (203) and the cover insulating layer (205) may include an organic film. The organic film may include at least one of an acrylic resin, a methacrylic resin, a polyisoprene, a vinyl resin, an epoxy resin, a urethane resin, a cellulose resin, a siloxane resin, a polyimide resin, a polyamide resin, and a perylene resin.

[0113] FIG. 6 is a block diagram of a display layer and a display control unit according to one embodiment of the present invention.

[0114] Referring to FIG. 6, the display layer (100) may include a plurality of scan lines (SL1-SLn), a plurality of data lines (DL1-DLm), and a plurality of pixels (PX). Each of the plurality of pixels (PX) may be connected to a corresponding data line among the plurality of data lines (DL1-DLm) and may be connected to a corresponding scan line among the plurality of scan lines (SL1-SLn). In one embodiment of the present invention, the display layer (100) may further include light emission control lines, and the display control unit (100C) may further include a light emission driving circuit that provides control signals to the light emission control lines. The configuration of the display layer (100) is not particularly limited.

[0115] The display control unit (100C) may include a signal control circuit (100C1), a scan driving circuit (100C2), and a data driving circuit (100C3).

[0116] The signal control circuit (100C1) can receive image data (RGB) and a control signal (D-CS) from the main control unit (1000C, see FIG. 3). The control signal (D-CS) may include various signals. For example, the control signal (D-CS) may include an input vertical synchronization signal, an input horizontal synchronization signal, a main clock, and a data enable signal.

[0117] The signal control circuit (100C1) can generate a first control signal (CONT1) and a vertical synchronization signal (Vsync) based on a control signal (D-CS) and output the first control signal (CONT1) and the vertical synchronization signal (Vsync) to a scan driving circuit (100C2). The vertical synchronization signal (Vsync) may be included in the first control signal (CONT1).

[0118] The signal control circuit (100C1) can generate a second control signal (CONT2) and a horizontal synchronization signal (Hsync) based on the control signal (D-CS), and output the second control signal (CONT2) and the horizontal synchronization signal (Hsync) to the data driving circuit (100C3). The horizontal synchronization signal (Hsync) may be included in the second control signal (CONT2).

[0119] Additionally, the signal control circuit (100C1) can output a data signal (DS) processed from image data (RGB) to the data driving circuit (100C3) in accordance with the operating conditions of the display layer (100). The first control signal (CONT1) and the second control signal (CONT2) are signals required for the operation of the scan driving circuit (100C2) and the data driving circuit (100C3) and are not particularly limited.

[0120] The scan driving circuit (100C2) can drive a plurality of scan lines (SL1-SLn) in response to a first control signal (CONT1) and a vertical synchronization signal (Vsync). In one embodiment of the present invention, the scan driving circuit (100C2) may be formed by the same process as the circuit layer (120, see FIG. 5) within the display layer (100), but is not limited thereto. For example, the scan driving circuit (100C2) may be implemented as an integrated circuit (IC) and mounted directly in a predetermined area of ​​the display layer (100), or mounted on a separate printed circuit board in a chip-on-film (COF) manner and electrically connected to the display layer (100).

[0121] The data driving circuit (100C3) can output grayscale voltages for driving a plurality of data lines (DL1-DLm) in response to a second control signal (CONT2), a horizontal synchronization signal (Hsync), and a data signal (DS) from the signal control circuit (100C1). The data driving circuit (100C3) may be implemented as a direct circuit and mounted directly in a predetermined area of ​​the display layer (100), or mounted on a separate printed circuit board in a chip-on-film manner and electrically connected to the display layer (100), but is not specifically limited. For example, the data driving circuit (100C3) may be formed by the same process as the circuit layer (120, see FIG. 5) within the display layer (100).

[0122] FIG. 7 is a block diagram of a sensor layer and a sensor control unit according to an embodiment of the present invention.

[0123] Referring to FIG. 7, an active area (200A) and a peripheral area (200N) may be defined in the sensor layer (200). The active area (200A) may be an area that is activated according to an electrical signal. For example, the active area (200A) may be an area that detects an input. The active area (200A) may overlap with the active area (1000A, FIG. 1) of the electronic device (1000, FIG. 1). The peripheral area (200N) may surround the active area (200A). The peripheral area (200N) may overlap with the peripheral area (1000NA, FIG. 1) of the electronic device (1000, FIG. 1).

[0124] The sensor layer (200) may include a plurality of first electrodes (210) and a plurality of second electrodes (220). Each of the plurality of first electrodes (210) extends along a first direction (DR1), and the plurality of first electrodes (210) may be arranged spaced apart from each other in a second direction (DR2). Each of the plurality of second electrodes (220) extends along a second direction (DR2), and the plurality of second electrodes (220) may be arranged spaced apart from each other in a first direction (DR1).

[0125] A plurality of second electrodes (220) may be insulated and intersected with a plurality of first electrodes (210). Each of the plurality of first electrodes (210) and the plurality of second electrodes (220) may have a bar shape or a star shape. A plurality of first electrodes (210) and a plurality of second electrodes (220) having such shapes can improve the sensing characteristics of a continuous linear input. However, the shape of each of the plurality of first electrodes (210) and the plurality of second electrodes (220) is not limited thereto.

[0126] The sensor control unit (200C) receives a control signal (I-CS) from the main control unit (1000C, see FIG. 3) and can provide a coordinate signal (I-SS) to the main control unit (1000C, see FIG. 3).

[0127] The sensor control unit (200C) may include a sensor control circuit (200C1), a signal generation circuit (200C2), an input detection circuit (200C3), and a switching circuit (200C4). The sensor control circuit (200C1), the signal generation circuit (200C2), and the input detection circuit (200C3) may be implemented within a single chip, or some of the sensor control circuit (200C1), the signal generation circuit (200C2), and the input detection circuit (200C3) and others may be implemented within different chips.

[0128] The sensor control circuit (200C1) controls the operation of the signal generation circuit (200C2) and the switching circuit (200C4), and can calculate the coordinates of an external input from a driving signal received from the input detection circuit (200C3), or analyze information transmitted from an input device (2000, see FIG. 3) from a modulation signal received from the input detection circuit (200C3). The sensor control circuit (200C1) can define the active area (200A) of the sensor layer (200) into a plurality of areas. The sensor control circuit (200C1) can provide an uplink signal (ULS, see FIG. 3) to some of the plurality of areas, and provide an inverse phase signal having the inverse phase of the uplink signal (ULS, see FIG. 3) to the remaining areas. This will be described later.

[0129] The signal generation circuit (200C2) can provide an output signal (or driving signal) referred to as a TX signal to the sensor layer (200). The signal generation circuit (200C2) can output an output signal corresponding to an operation mode to the sensor layer (200).

[0130] The input detection circuit (200C3) can convert an analog signal, referred to as an RX signal (or detection signal), received from the sensor layer (200) into a digital signal. The input detection circuit (200C3) can amplify the received analog signal and then filter it. The input detection circuit (200C3) can then convert the filtered signal into a digital signal.

[0131] The switching circuit (200C4) can selectively control the electrical connection relationship between the sensor layer (200) and the signal generation circuit (200C2) and / or the input detection circuit (200C3) according to the control of the sensor control circuit (200C1). The switching circuit (200C4) can connect one group of a plurality of first electrodes (210) and a plurality of second electrodes (220) to the signal generation circuit (200C2) according to the control of the sensor control circuit (200C1), or connect each of the plurality of first electrodes (210) and the plurality of second electrodes (220) to the signal generation circuit (200C2). Alternatively, the switching circuit (200C4) can connect one group or all of the plurality of first electrodes (210) and the plurality of second electrodes (220) to the input detection circuit (200C3).

[0132] FIG. 8 is a conceptual diagram illustrating the operation of a display layer and a sensor layer according to an embodiment of the present invention.

[0133] Referring to FIGS. 3 and FIGS. 8, an electronic device (1000) can display an image (IM) through a display layer (100). The display layer (100) can display the image (IM) in units of display frames (DF). Multiple display frames (DF) may be provided. A display frame (FR) may be driven at a first operating frequency. The first operating frequency may be 120 Hz (Hertz). At this time, the time corresponding to one display frame (DF) may be 8.33 ms (millisecond). However, this is exemplary, and the first operating frequency according to an embodiment of the present invention is not limited thereto. For example, the first operating frequency may be 60 Hz.

[0134] An electronic device (1000) can detect an external input through a sensor layer (200). The sensor layer (200) can detect the input in units of frames (FR). Multiple frames (FR) may be provided. A frame (FR) may be driven at a second operating frequency. The second operating frequency may be 240 Hz. In this case, the time corresponding to one frame (FR) may be 4.16 ms. However, this is exemplary, and the second operating frequency according to an embodiment of the present invention is not limited thereto. For example, the second operating frequency may be 120 Hz. The second operating frequency may be higher than or equal to the first operating frequency.

[0135] FIG. 8 illustrates, by way of example, that two frames (FR) correspond to one display frame (DF), but the relationship between the display frame (DF) and the frame (FR) according to one embodiment of the present invention is not limited thereto. For example, four frames (FR) may correspond to one display frame (DF), or one frame (FR) may correspond to one display frame (DF).

[0136] A frame (FR) may operate according to a predetermined protocol. The predetermined protocol may include the Universal Stylus Initiative (USI). However, this is exemplary and the predetermined protocol according to one embodiment of the present invention is not limited thereto. For example, the predetermined protocol may include the Active Electrostatic Protocol (AES) or the Microsoft Pen Protocol (MPP).

[0137] The electronic device (1000) can detect a first input (TC1) and a second input (TC2) while displaying an image (IM) through the display layer (100). Depending on the presence or absence of the input device (2000), the electronic device (1000) may operate in a first mode (MD1, see FIG. 9) for detecting the first input (TC1) or in a second mode (MD2, see FIG. 11) for detecting the second input (TC2). For example, if the input device (2000) is not detected, the electronic device (1000) may operate in the first mode (MD1, see FIG. 9), and if the input device (2000) is detected, the electronic device (1000) may operate in the second mode (MD2, see FIG. 11). This will be described later.

[0138] FIG. 9 is a conceptual diagram for explaining operation in a first mode according to an embodiment of the present invention, and FIG. 10a and FIG. 10b are drawings illustrating a sensor layer operating in a first mode according to an embodiment of the present invention.

[0139] Referring to FIGS. 3, 9 to 10b, the sensor control unit (200C) can provide an uplink signal (ULS) to the outside through the sensor layer (200). This will be described later. The uplink signal (ULS) may also be referred to as a beacon signal.

[0140] The sensor control unit (200C) transmits an uplink signal (ULS) to the input device (2000) and can drive the sensor layer (200) in a first mode (MD1) or a second mode (MD2, see FIG. 11) depending on whether an acknowledgment signal (ACK) is received from the input device (2000).

[0141] If the electronic device (1000) is not adjacent to the input device (2000), the uplink signal (ULS) may not be provided to the input device (2000). In this case, the sensor layer (200) may not receive an acknowledgment signal (ACK) for the uplink signal (ULS) of the input device (2000). If the sensor control unit (200C) does not receive an acknowledgment signal (ACK), it may drive the sensor layer (200) into a first mode (MD1).

[0142] In the first mode (MD1), one frame (FR, see FIG. 8) may be provided with an uplink signal (ULS) and at least one sensing signal (SSL).

[0143] The sensing signal (SSL) may include a first sensing signal (SS1) and a second sensing signal (SS2). That is, at least one first sensing signal (SS1) and at least one second sensing signal (SS2) may be provided in the k-th frame (FRk). In this case, k may be a positive integer.

[0144] In the k-th frame (FRk), an uplink signal (ULS), a first sensing signal (SS1), a second sensing signal (SS2), a first sensing signal (SS1), and a second sensing signal (SS2) may be provided in sequence. In the k-th frame (FRk), two first sensing signals (SS1) and two second sensing signals (SS2) may be provided.

[0145] When the sensor layer (200) operates in the first mode (MD1), the sensor layer (200) can detect the first input (TC1) during the k-th frame (FRk).

[0146] The sensor control unit (200C) can transmit a first sensing signal (SS1) to each of the plurality of first electrodes (210) and the plurality of second electrodes (220). The sensor layer (200) can detect a first input (TC1) by integrating the plurality of first electrodes (210) and the plurality of second electrodes (220) into a single electrode. At this time, the sensor layer (200) may be defined as operating in a self-touch manner.

[0147] FIG. 10a illustrates a portion of the sensor layer (200) operating in the self-touch manner. A portion of one first electrode (210) and a portion of one second electrode (220) can be defined as a single sensing unit (200U).

[0148] The second electrode (220) may include cross patterns (221) and bridge patterns (222) electrically connected to the cross patterns (221). The cross patterns (221) may be spaced apart with the first electrode (210) in between. The bridge patterns (222) may overlap with the first electrode (210), and the bridge patterns (222) may be insulated from the first electrode (210).

[0149] The cross patterns (221) and the first electrode (210) may be placed on the same layer as each other, and the bridge patterns (222) may be placed on a different layer from the cross patterns (221) and the first electrode (210). For example, the cross patterns (221) and the first electrode (210) may be included in the second conductive layer (204, see FIG. 5), and the bridge patterns (222) may be included in the first conductive layer (202, see FIG. 5). In this case, this structure may be referred to as a bottom bridge structure. However, an embodiment of the present invention is not limited thereto. For example, the cross patterns (221) and the first electrode (210) may be included in the first conductive layer (202, see FIG. 5), and the bridge patterns (222) may be included in the second conductive layer (204, see FIG. 5), and this structure may be referred to as a top bridge structure.

[0150] Each of the cross patterns (221) and the first electrode (210) may have a mesh structure. In this case, an opening may be defined in each of the cross patterns (221) and the first electrode (210). However, this is not limited thereto, and each of the cross patterns (221) and the first electrode (210) may be composed of a transparent conductive electrode.

[0151] The first sensing signal (SS1) may include a first signal (S1) and a second signal (S2). In the self-touch method, the sensor control unit (200C) may provide the first signal (S1) to the first electrode (210) and provide the second signal (S2) to the second electrode (220). At this time, the sensor control unit (200C) may detect the touch coordinates of the first input (TC1) from the amount of charge charged in the capacitor.

[0152] The sensor control unit (200C) can transmit a second sensing signal (SS2) to a plurality of first electrodes (210) or a plurality of second electrodes (220). The sensor layer (200) can detect a first input (TC1) by capacitively coupling the plurality of first electrodes (210) and the plurality of second electrodes (220). At this time, the sensor layer (200) may be defined as operating in a mutual touch manner.

[0153] FIG. 10b illustrates a part of the sensor layer (200) operating in the mutual touch method. The second sensing signal (SS2) may include an output signal (S3) and a detection signal (S4). In the mutual touch method, the sensor control unit (200C) may provide the output signal (S3) to the first electrode (210) and receive the detection signal (S4) from the second electrode (220). That is, the first electrode (210) may function as a transmission electrode, and the second electrode (220) may function as a reception electrode. However, it is not particularly limited thereto. For example, the first electrode (210) may function as a reception electrode, and the second electrode (220) may function as a transmission electrode. At this time, the sensor control unit (200C) may detect the touch coordinates of the first input (TC1) from the difference in the amount of charge between the first electrode (210) and the second electrode (220).

[0154] According to the present invention, a sensor layer (200) operating in a first mode (MD1) may utilize both the self-touch method and the mutual touch method to detect a first input (TC1) in a k-th frame (FRk). A sensor control unit (200C) may detect the coordinates of the first input (TC1) based on a first sensing signal (SS1) and a second sensing signal (SS2). The touch reliability of the first input (TC1) may be improved. Accordingly, an electronic device (1000) with improved detection reliability may be provided.

[0155] After the k-th frame (FRk), the k+1 frame (FRk+1) may proceed. In the k+1 frame (FRk+1), the sensor control unit (200C) may provide an uplink signal (ULS) to the outside through the sensor layer (200). Depending on whether an acknowledgment signal (ACK) is received from the input device (2000), the sensor layer (200) may be driven in a first mode (MD1) or a second mode (MD2, see FIG. 11).

[0156] FIG. 11 is a conceptual diagram for explaining operation in a second mode according to an embodiment of the present invention, and FIG. 12a and FIG. 12b are drawings illustrating a sensor layer operating in a second mode according to an embodiment of the present invention. In describing FIG. 12a and FIG. 12b, the same reference numerals are used for components described through FIG. 10a and FIG. 10b, and descriptions thereof are omitted.

[0157] Referring to FIGS. 3, FIGS. 11 to 12b, the sensor control unit (200C) can provide an uplink signal (ULS) to the outside through the sensor layer (200).

[0158] The sensor control unit (200C) transmits an uplink signal (ULS) to the input device (2000) and can drive the sensor layer (200) in a first mode (MD1, see FIG. 9) or a second mode (MD2) depending on whether an acknowledgment signal (ACK) is received from the input device (2000).

[0159] When the electronic device (1000) is adjacent to the input device (2000), an uplink signal (ULS) may be provided to the input device (2000). In this case, the sensor layer (200) may receive an acknowledgment signal (ACK) for the uplink signal (ULS) of the input device (2000). When the sensor control unit (200C) receives the acknowledgment signal (ACK), it may drive the sensor layer (200) into a second mode (MD2).

[0160] The second mode (MD2) may be a mode in which the electronic device (1000) and the input device (2000) transmit and receive data to and from each other.

[0161] In the second mode (MD2), one frame (FR, see FIG. 8) may be provided with an uplink signal (ULS), a downlink signal (DLS), and a third sensing signal (SS3).

[0162] The control unit (2300) can generate a downlink signal (DLS) according to a predetermined protocol. The predetermined protocol may include the Universal Stylus Initiative (USI). However, this is exemplary and the predetermined protocol according to one embodiment of the present invention is not limited thereto. For example, the predetermined protocol may include the Active Electrostatic Protocol (AES) or the Microsoft Pen Protocol (MPP).

[0163] The downlink signal (DLS) may include at least one first signal (DLK1), at least one second signal (DLK2), and at least one third signal (DLK3). The first signal (DLK1) may include first information. The first information may include coordinate information of the input device (2000). The second signal (DLK2) may include second information different from the first information. The second information may include battery information of the input device (2000). The third signal (DLK3) may include third information different from the first information and the second information. The third information may include tilt information of the input device (2000). However, this is exemplary, and the information of the input device (2000) included in the first to third information according to an embodiment of the present invention is not limited thereto and may be provided in various ways. For example, the first information may include battery information of the input device (2000), the second information may include tilt information of the input device (2000), and the third information may include coordinate information of the input device (2000).

[0164] In the nth frame (FRn), at least one first signal (DLK1), at least one second signal (DLK2), and at least one third signal (DLK3) may be provided. In this case, n may be a positive integer.

[0165] In the n-th frame (FRn), an uplink signal (ULS), a first signal (DLK1), a second signal (DLK2), a first signal (DLK1), a third signal (DLK3), a first signal (DLK1), a second signal (DLK2), a first signal (DLK1), and a third sensing signal (SS3) may be provided in sequence. In the n-th frame (FRn), four first signals (DLK1), two second signals (DLK2), one third signal (DLK3), and one third sensing signal (SS3) may be provided. However, this is exemplary, and the number of each of the first signal (DLK1), second signal (DLK2), third signal (DLK3), and third sensing signal (SS3) according to an embodiment of the present invention is not limited thereto.

[0166] When the sensor layer (200) operates in a second mode (MD2), the sensor layer (200) can detect a second input (TC2) during the nth frame (FRn).

[0167] The operation illustrated in FIG. 12a may be an operation of providing an uplink signal (ULS) from an electronic device (1000) to an input device (2000). Each of the first electrode (210) and the second electrode (220) may be utilized as a transmission electrode to provide the uplink signal (ULS) provided from the sensor control unit (200C) to the input device (2000). The uplink signal (ULS) may be provided to the first electrode (210) and the second electrode (220), respectively, as divided signals (S5a, S5b). However, this is not limited thereto. For example, the first electrode (210) or the second electrode (220) may be utilized as a transmission electrode.

[0168] The operation illustrated in FIG. 12b may be an operation of providing a downlink signal (DLS) from an input device (2000) to an electronic device (1000). Induction signals (S6a, S6b) may be provided to the sensor layer (200) by the downlink signal (DLS). Each of the first electrode (210) and the second electrode (220) may be utilized as a receiving electrode to transmit the induction signals (S6a, S6b) induced from the input device (2000) to the sensor control unit (200C).

[0169] The third sensing signal (SS3) may be provided after the last first signal (DLK1) of the downlink signal (DLS). The sensor control unit (200C) may transmit the third sensing signal (SS3) to a plurality of first electrodes (210) or a plurality of second electrodes (220). The sensor layer (200) may detect a first input (TC1) by the user's body (3000) by capacitively coupling the plurality of first electrodes (210) and the plurality of second electrodes (220). The sensor layer (200) may operate in a mutual touch manner based on the third sensing signal (SS3).

[0170] When a first input (TC1) by the user's body (3000) is detected during the second mode (MD2), the sensor control unit (200C) can output the first coordinates of the first input (TC1) based on the third sensing signal (SS3) of each of at least two frames (FR, see FIG. 8) in which the first input (TC1) is detected among a plurality of frames (FR, see FIG. 8). An electronic device (1000) according to an embodiment of the present invention can detect the first input (TC1) by monitoring it through the third sensing signal (SS3) even during the second mode (MD2) in which the second input (TC2) for the input device (2000) is detected. The sensor control unit (200C) can correct the second coordinates of the second input (TC2) based on the first coordinates. This will be described later.

[0171] When an input device (2000) and a user's body (3000) are simultaneously provided to an electronic device (1000), unlike the present invention, a phenomenon may occur in which an uplink signal (ULS) is induced through the user's body (3000). Additionally, a first input (TC1) and a second input (TC2) may be simultaneously input to a sensor control unit (200C). As a result, the sensor control unit (200C) may not accurately recognize the second coordinate of the input device (2000). Since the second coordinate is inaccurate, the linearity of the straight line displayed when drawing a straight line on the electronic device (1000) using the input device (2000) may be reduced. However, according to the present invention, when a first input (TC1) is detected during a second mode (MD2), the sensor control unit (200C) can output a first coordinate of the first input (TC1) based on a sensing signal (SS3) of at least one frame (FR, see FIG. 8) in which the first input (TC1) is detected among a plurality of frames (FR, see FIG. 8). The sensor control unit (200C) can correct a second coordinate of the second input (TC2) based on the first coordinate during the time of at least two frames (FR, see FIG. 8) including at least one frame (FR, see FIG. 8) in which the first input is detected among a plurality of frames (FR, see FIG. 8). The linearity of the straight line displayed when drawing a straight line on an electronic device (1000) using the input device (2000) can be improved by the corrected second coordinate. Accordingly, an electronic device (1000) with improved detection reliability and an interface device (INF, see FIG. 1) including the same may be provided.

[0172] After the n-th frame (FRn), the n+1-th frame (FRn+1) may proceed. In the n+1-th frame (FRn+1), the sensor control unit (200C) may provide an uplink signal (ULS) to the outside through the sensor layer (200). The sensor control unit (200C) may provide an uplink signal (ULS) to the outside through the sensor layer (200). Depending on whether an acknowledgment signal (ACK) is received from the input device (2000), the sensor layer (200) may be driven in a first mode (MD1, see FIG. 9) or a second mode (MD2).

[0173] FIG. 13 illustrates a sensor layer to which a first input and a second input are simultaneously applied according to an embodiment of the present invention, and FIG. 14 is a conceptual diagram illustrating the operation of an electronic device and an input device according to an embodiment of the present invention.

[0174] Referring to FIGS. 3, FIGS. 13, and FIGS. 14, the sensor layer (200) can detect a second input (TC2) based on an input device (2000). At this time, a hand holding the input device (2000) may come into contact with the sensor layer (200), and a first input (TC1) by the user's body (3000) may occur simultaneously.

[0175] An image (IM) may be displayed in the active area (1000A) of the electronic device (1000). The image (IM) may include a first line (LN-1), a second line (LN-2), and a third line (LN-3).

[0176] When a straight line corresponding to each of the first line (LN-1), the second line (LN-2), and the third line (LN-3) is drawn on the electronic device (1000) using an input device (2000), the coordinates of the straight line can be converted into a coordinate signal (I-SS) and provided to the main control unit (1000C). The main control unit (1000C) can operate the display control unit (100C) based on the coordinate signal (I-SS) so that the first to third lines (LN-1, LN-2, LN-3) are displayed on the display layer (100).

[0177] The first to third lines (LN-1, LN-2, LN-3) may be generated based on the second coordinates of the second input (TC2) of the input device (2000).

[0178] Unlike the present invention, when a line is drawn at a speed of 4 mm / s with an inclination of 90 degrees of the input device (2000), if the first input (TC1) and the second input (TC2) are provided simultaneously, the linearity of the straight line displayed on the display layer (100) may have an average error of about 1.01 mm compared to an ideal straight line due to the interference effect of the first input (TC1). However, according to the present invention, when the first input (TC1) and the second input (TC2) are detected simultaneously, the sensor control unit (200C, see FIG. 3) can output the first coordinate of the first input (TC1) based on the sensing signal (SS3, see FIG. 11) of at least one frame (FR, see FIG. 8) in which the first input (TC1) is detected among a plurality of frames (FR, see FIG. 8). A sensor control unit (200C, see FIG. 3) can correct the second coordinate of a second input (TC2) based on the first coordinate during the time of at least two frames (FR, see FIG. 8), including at least one frame (FR, see FIG. 8) in which a first input is detected among a plurality of frames (FR, see FIG. 8). The linearity of a straight line displayed when drawing a straight line on an electronic device (1000) using an input device (2000) can be improved by the corrected second coordinate. For example, the linearity of the first to third lines (LN-1, LN-2, LN-3) can be improved so that an error of approximately 0.55 mm on average occurs compared to an ideal straight line. Accordingly, an electronic device (1000, see FIG. 3) with improved reliability and an interface device (INF, see FIG. 1) including the same can be provided.

[0179] FIG. 15 is a conceptual diagram illustrating the operation of an electronic device in enlarged view of the AA' area of ​​FIG. 14 according to one embodiment of the present invention, and FIG. 16 is a conceptual diagram for explaining the operation of a display layer and a sensor layer according to one embodiment of the present invention.

[0180] FIG. 16 illustrates, by way of example, that a second input (TC2) corresponding to a third line (LN-3) is provided by an input device (2000), and that a first input (TC1) and a second input (TC2) are provided simultaneously in a second frame (FR2). However, this is an example, and the number of frames and frames in which the first input (TC1) and the second input (TC2) are provided simultaneously according to an embodiment of the present invention is not limited thereto.

[0181] Referring to FIGS. 3, FIGS. 11, FIGS. 14 through 16, the display layer (100) can operate as consecutive first to third display frames (DF1, DF2, DF3). The image (IM, see FIG. 1) may include a third line (LN-3). That is, the display layer (100) may display the third line (LN-3). The third line (LN-3) may include a first part (LN-3a), a second part (LN-3b), and a third part (LN-3c).

[0182] The sensor layer (200) can operate with the first to sixth frames (FR1, FR2, FR3, FR4, FR5, FR6) to detect the first input (TC1) and / or the second input (TC2). The sensor layer (200) is provided with the second input (TC2) by the input device (2000) so that each of the first to sixth frames (FR1, FR2, FR3, FR4, FR5, FR6) can operate in the second mode (MD2).

[0183] In the first display frame (DF1), the display layer (100) can display the first image (IM-1). The first image (IM-1) can display the first part (LN-3a) generated based on the second coordinates of the second input (TC2) detected by the previous frames.

[0184] In the first frame (FR1), the sensor control unit (200C) can output the first sensing coordinates (CD1) of the input device (2000) based on the downlink signal (DLS).

[0185] In the second frame (FR2), the sensor control unit (200C) can detect the second input (TC2) of the input device (2000) based on the downlink signal (DLS) and detect the first input (TC1) based on the third sensing signal (SS3). That is, the first input (TC1) and the second input (TC2) can be provided simultaneously in the second frame (FR2).

[0186] When the first input (TC1) is detected during the second mode (MD2), the sensor control unit (200C) can output the first coordinate (CDa) of the first input (TC1) based on the third sensing signal (SS3) of the second frame (FR2) in which the first input (TC1) is detected.

[0187] Unlike the present invention, when the first input (TC1) and the second input (TC2) are detected simultaneously, the sensor control unit (200C) may not accurately recognize the coordinates of the second input (TC2) of the input device (2000). The sensor control unit (200C) may output the second sensing coordinates (CD2) detected by interference of the first input (TC1) based on the downlink signal (DLS). However, the sensor control unit (200C) according to one embodiment of the present invention may correct the second sensing coordinates (CD2) based on the first coordinates (CDa).

[0188] When the first input (TC1) and the second input (TC2) are detected simultaneously, the sensor control unit (200C) may define at least two frames (FR, see FIG. 8) including the second frame (FR2). The main control unit (1000C) may operate the display control unit (100C) so that the sensing coordinates output during the at least two frames (FR, see FIG. 8) are not displayed on the display layer (100).

[0189] The sensor control unit (200C) can correct the second sensing coordinate (CD2) based on the first coordinate (CDa) during the time of the second to fourth frames (FR2, FR3, FR4) including the second frame (FR2). For example, the time may be 12.48 ms. In FIG. 16, three frames were accumulated as an example, but the number of frames according to an embodiment of the present invention is arbitrary and is not limited thereto, and is not limited if two or more frames are secured. For example, if four frames are accumulated, the sensor control unit (200C) can correct the second sensing coordinate (CD2) in real time for a time of 16.67 ms.

[0190] Unlike the present invention, if the sensor control unit (200C) does not secure time to process the second sensing coordinate (CD2), the second sensing coordinate (CD2) may not be corrected. In this case, the second image (IM-2) may be displayed on the display layer (100) including the interfered line (LIN1). Consequently, the linearity of the third line (LN-3) may be degraded. However, the second to fourth frames (FR2, FR3, FR4) according to one embodiment of the present invention may be referred to as accumulated frames (FR2, FR3, FR4). The display layer (100) may not display the second coordinate of the second input (TC2) detected in the accumulated frames (FR2, FR3, FR4). The display layer (100) may not display the interfered line (LIN1) and may wait until the second sensing coordinate (CD2) is corrected by the sensor control unit (200C).

[0191] In the second display frame (DF2), the display layer (100) can display the second image (IM-2). The second image (IM-2) can display only the first part (LN-3a) without displaying the interfered line (LIN1).

[0192] The sensor control unit (200C) can determine, based on the first coordinate (CDa), that the second sensing coordinate (CD2) is an interfering coordinate that degrades the linearity of the third line (LN-3). If the sensor control unit (200C) determines that the second sensing coordinate (CD2) is an interfering coordinate, it can ignore the second sensing coordinate (CD2).

[0193] In the third frame (FR3) and the fourth frame (FR4), the sensor control unit (200C) can output the third sensing coordinates (CD3) and the fourth sensing coordinates (CD4) of the input device (2000), respectively, based on the downlink signal (DLS).

[0194] The sensor control unit (200C) can output information about the path (LIN) by connecting the sensing coordinates (CD1, CD3) detected in two frames (FR1, FR3) separated from each other with the second frame (FR2) in which the ignored second sensing coordinate (CD2) is detected. The display control unit (100C) can control the path (LIN) to be displayed on the display layer (100) based on the information about the path (LIN). That is, the sensor control unit (200C) can generate information about the path (LIN) by connecting the first sensing coordinate (CD1) and the third sensing coordinate (CD3) in a straight line. The sensor control unit (200C) can correct the linearity of the input device (2000) by ignoring the second sensing coordinate (CD2), which is an interfered coordinate, and generating information about the path (LIN) based on the first sensing coordinate (CD1) and the third sensing coordinate (CD3).

[0195] In the third display frame (DF3), the display layer (100) can display a third image (IM-3). The third image (IM-3) can display a first part (LN-3a) and a second part (LN-3b) including a corrected path (LIN). The main control unit (1000C) can operate the display control unit (100C) to display the second part (LN-3b) on the display layer (100) based on a coordinate signal (I-SS) including information about the first sensing coordinate (CD1), the path (LIN), the third sensing coordinate (CD3), and the fourth sensing coordinate (CD4).

[0196] The display control unit (100C) can display a corrected path (LIN) on the display layer (100) in the display frame (DF3) after the accumulated frames (FR2, FR3, FR4).

[0197] According to the present invention, when a first input (TC1) is detected during a second mode (MD2), the sensor control unit (200C) can output a first coordinate (CDa) of the first input (TC1) based on a third sensing signal (SS3) of at least one frame (FR2) in which the first input (TC1) is detected among a plurality of frames (FR1, FR2, FR3, FR4, FR5, FR6). The sensor control unit (200C) can correct the coordinate of the second input (TC2) based on the first coordinate (CDa) during the time of at least two frames (FR2, FR3, FR4) including at least one frame (FR2) in which the first input (TC1) is detected among a plurality of frames (FR1, FR2, FR3, FR4, FR5, FR6). The linearity of the input device (2000) can be improved by the corrected coordinate. Accordingly, an electronic device (1000) with improved reliability and an interface device (INF, see FIG. 1) including the same may be provided.

[0198] In the 5th frame (FR5) and the 6th frame (FR6), the sensor control unit (200C) can output the 5th sensing coordinates (CD5) and the 6th sensing coordinates (CD6) of the input device (2000) respectively based on the downlink signal (DLS).

[0199] A third part (LN-3c) including fifth sensing coordinates (CD5) and sixth sensing coordinates (CD6) can be displayed on the display layer (100) by a display frame after the third display frame (DF3).

[0200] FIG. 17 is a conceptual diagram illustrating operation in a second mode according to an embodiment of the present invention. In describing FIG. 17, the same reference numerals are used for components described through FIG. 11, and descriptions thereof are omitted.

[0201] Referring to FIGS. 3 and FIGS. 17, the downlink signal (DLS-1) may include at least one first signal (DLK1), at least one second signal (DLK2), and at least one third signal (DLK3-1). The first signal (DLK1) may include first information. The first information may include coordinate information of an input device (2000). The second signal (DLK2) may include second information different from the first information. The second information may include various information such as battery information of the input device (2000). The third signal (DLK3-1) may include third information different from the first information and the second information. The third information may include tilt information of the input device (2000).

[0202] In the m-th frame (FRm), at least one first signal (DLK1), at least one second signal (DLK2), and at least one third signal (DLK3-1) may be provided. In this case, m may be a positive integer.

[0203] In the first frame (FRm), the second mode (MD2) can operate using a frequency-division multiplexing method.

[0204] Each of the uplink signal (ULS), the first signal (DLK1), the second signal (DLK2), and the third sensing signal (SS3) can operate at the first signal frequency. For example, the first signal frequency can be 370 kHz.

[0205] The third signal (DLK3-1) may operate at the second signal frequency. The second signal frequency may have a frequency different from the first signal frequency. The second signal frequency may be smaller than the first signal frequency. For example, the second signal frequency may be 330 kHz. However, this is exemplary and is not limited to the first signal frequency and the second signal frequency according to one embodiment of the present invention as long as they are different from each other.

[0206] The uplink signal (ULS), the first signal (DLK1), the second signal (DLK2), the first signal (DLK1), the third sensing signal (SS3), the first signal (DLK1), the second signal (DLK2), the first signal (DLK1), and the third sensing signal (SS3) may be provided in sequence. The third signal (DLK3-1) may be provided simultaneously when the second signal (DLK2) is provided.

[0207] In the m-th frame (FRm), four first signals (DLK1), two second signals (DLK2), two third signals (DLK3), and two third sensing signals (SS3) may be provided. However, this is exemplary, and the number of each of the first signal (DLK1), second signal (DLK2), third signal (DLK3), and third sensing signal (SS3) according to one embodiment of the present invention is not limited thereto.

[0208] According to the present invention, a second signal (DLK2) can be provided at a first signal frequency and a third signal (DLK3-1) can be provided at a second signal frequency by driving a frequency-division multiplexing method during the m-th frame (FRm). The second signal (DLK2) and the third signal (DLK3-1) can be provided simultaneously. The report rate for the third information can be improved. Accordingly, an electronic device (1000) with improved reliability and an interface device (INF, see FIG. 1) including the same can be provided.

[0209] Although the present invention has been described above with reference to preferred embodiments, those skilled in the art or those with ordinary knowledge in the relevant technical field will understand that various modifications and changes can be made to the invention without departing from the spirit and technical scope of the invention as set forth in the claims below. Accordingly, the technical scope of the present invention should not be limited to the contents described in the detailed description of the specification, but should be determined by the claims. Explanation of the symbols

[0210] INF: Interface device 1000: Electronic device 2000: Input device 100: Display layer 200: Sensor layer 200C: Sensor control unit

Claims

Claim 1 An electronic device comprising: a display layer; a sensor layer disposed on the display layer and operating in a first mode that detects a first input by touch and a second mode different from the first mode; and a sensor control unit that controls the sensor layer, wherein the second mode operates in a plurality of frames, and each of the plurality of frames is provided with a downlink signal and a sensing signal, wherein the downlink signal detects a second input by an input device, and the sensing signal detects the first input, and wherein, when the first input is detected during the second mode, the sensor control unit outputs a first coordinate of the first input based on the sensing signal of at least one frame among the plurality of frames in which the first input is detected, and wherein, when the first input is detected during the second mode, the sensor control unit corrects a second coordinate of the second input based on the first coordinate during the time of at least two frames including the at least one frame, and wherein the sensor control unit ignores at least one of the second coordinates detected in the at least two frames based on the first coordinate. Claim 2 delete Claim 3 An electronic device according to claim 1, further comprising a display control unit that drives the display layer in units of display frames, wherein the sensor control unit outputs information regarding a path connecting the second coordinates detected in two frames spaced apart with at least one frame in which the ignored at least one second coordinate is detected, and the display control unit displays the path on the display layer in the display frame after the at least two frames. Claim 4 An electronic device according to claim 1, wherein the sensor control unit transmits an uplink signal to the input device and drives the sensor layer in the first mode or the second mode depending on whether an acknowledgment signal is received from the input device. Claim 5 An electronic device according to claim 4, wherein the sensor control unit drives the sensor layer in the first mode when the acknowledgment response signal is not received, and drives the sensor layer in the second mode when the sensor control unit receives the acknowledgment response signal. Claim 6 An electronic device according to claim 1, wherein the sensor layer comprises a plurality of first electrodes each extending in a first direction and a plurality of second electrodes each extending in a second direction intersecting the first direction. Claim 7 An electronic device according to claim 6, wherein the downlink signal comprises a first signal including first information of the input device, a second signal including second information different from the first information, and a third signal including third information different from the first information and the second information. Claim 8 An electronic device according to claim 7, wherein the first information includes coordinate information of the input device and the third information includes tilt information of the input device. Claim 9 In claim 7, each of the first signal and the second signal is provided as at least one, and the downlink signal is provided in the order of the first signal, the second signal, the first signal, the third signal, the first signal, the second signal, and the first signal, and the sensing signal is provided after the last first signal, and the sensing signal includes a value detected by capacitive coupling of the plurality of first electrodes and the plurality of second electrodes. Claim 10 An electronic device according to claim 7, wherein each of the first signal and the second signal has a first signal frequency, and the third signal has a second signal frequency different from the first signal frequency. Claim 11 In claim 10, the electronic device in which the first signal frequency is greater than the second signal frequency. Claim 12 An electronic device comprising a display layer, a sensor layer disposed on the display layer, and a sensor control unit for controlling the sensor layer; The electronic device includes an input device that communicates with the electronic device, wherein the sensor layer operates with a plurality of frames and detects a first coordinate by touch and a second coordinate by the input device, wherein an uplink signal, a downlink signal, and a sensing signal are sequentially provided to each of the plurality of frames, wherein the uplink signal is provided from the sensor layer to the input device and the downlink signal is provided from the input device to the sensor layer, wherein the sensing signal detects a touch of the sensor layer, wherein the sensor control unit outputs the first coordinate based on the sensing signal of at least one frame among the plurality of frames in which the touch is detected when the touch is detected, and wherein the sensor control unit corrects the second coordinate based on the first coordinate during the time of at least two frames including the at least one frame, and the electronic device further includes a display control unit that operates the display layer in units of display frames, wherein the sensor control unit outputs information regarding a path connecting the coordinates of the input device detected in two frames spaced apart with the at least one frame among the plurality of frames in which the touch is detected, and wherein the display control unit An interface device that displays the path on the display layer in the display frame after at least two or more frames. Claim 13 delete Claim 14 In claim 12, the input device comprises: a housing; a power supply unit disposed within the housing; a control unit disposed within the housing and receiving power from the power supply unit; a communication module communicating the uplink signal and the downlink signal with the sensor layer; and an interface device including a pen electrode electrically connected to the communication module. Claim 15 In claim 14, the control unit generates a downlink signal according to a predetermined protocol, and the predetermined protocol is an interface device including the Universal Stylus Initiative (USI). Claim 16 In claim 12, the downlink signal comprises a first signal including first information of the input device, a second signal including second information different from the first information of the input device, and a third signal including third information different from the first information and the second information of the input device, wherein the first information includes coordinate information of the input device and the third information includes tilt information of the input device. Claim 17 In claim 16, each of the first signal and the second signal is provided as at least one, and the downlink signal is provided in the order of the first signal, the second signal, the first signal, the third signal, the first signal, the second signal, and the first signal, and the sensing signal is provided after the last first signal, an interface device. Claim 18 An interface device according to claim 16, wherein each of the first signal and the second signal has a first signal frequency, and the third signal has a second signal frequency different from the first signal frequency. Claim 19 In claim 18, the interface device in which the first signal frequency is greater than the second signal frequency. Claim 20 In claim 18, the electronic device is an interface device that simultaneously receives the second signal and the third signal.

Images