Coordinate correction method and electronic device

Abstract

The present application relates to a coordinate correction method and an electronic device. An electronic device according to an embodiment of the present application can include an input sensor that senses an input from the outside to acquire a sensed coordinate, a memory that includes first modeling data and second modeling data, and a control part that corrects the sensed coordinate to acquire a calculated coordinate. The control part can include a first reference point moving part that converts the sensed coordinate into a first intermediate coordinate, a coordinate correction part that corrects the first intermediate coordinate based on the first modeling data and the second modeling data to acquire a second intermediate coordinate, and a second reference point moving part that acquires the calculated coordinate based on the second intermediate coordinate.

Description

TECHNICAL FIELD

[0001] The present application relates to a coordinate correction method with improved coordinate accuracy and an electronic device. BACKGROUND

[0002] An electronic device can include a display panel displaying an image and an input sensor sensing an external input. The input sensor can be integrally formed with the display panel through a continuous process. Alternatively, the input sensor can be formed through a process separate from the display panel and then combined with the display panel. SUMMARY

[0003] The present application relates to a coordinate correction method with improved coordinate accuracy and an electronic device.

[0004] An electronic device according to an embodiment of the present application can include an input sensor sensing an input from an outside to acquire a sensed coordinate, and defined with a plurality of sensing units; a memory including first modeling data acquired from a first sensing unit among the plurality of sensing units and a second sensing unit adjacent to the first sensing unit in a first direction, and second modeling data acquired from the first sensing unit and a third sensing unit adjacent to the first sensing unit in a second direction crossing the first direction; and a control part correcting the sensed coordinate to acquire a calculated coordinate. The control part can include a first reference point moving part converting the sensed coordinate into a first intermediate coordinate based on a coordinate system including a coordinate unit defined from a width of each of the plurality of sensing units, a coordinate correction part correcting the first intermediate coordinate to acquire a second intermediate coordinate based on the first modeling data and the second modeling data, and a second reference point moving part acquiring the calculated coordinate based on the second intermediate coordinate.

[0005] The first modeling data can have a sensed value for an input value of an intermediate point of the first sensing unit to an intermediate point of the second sensing unit continuously input in the first direction.

[0006] The second modeling data can have a sensed value for an input value of the intermediate point of the first sensing unit to an intermediate point of the third sensing unit continuously input in the second direction.

[0007] The first modeling data can be stored in the memory in a form of a first function, and the second modeling data can be stored in the memory in a form of a second function.

[0008] The first function and the second function can have the same shape as each other.

[0009] The first intermediate coordinate can include a first x-coordinate and a first y-coordinate, and the second intermediate coordinate can include a second x-coordinate and a second y-coordinate, and the coordinate correction section can obtain the second x-coordinate by substituting the first x-coordinate into a first inverse function of the first function, and obtain the second y-coordinate by substituting the first y-coordinate into a second inverse function of the second function.

[0010] Each of the first modeling data and the second modeling data can be stored in the memory in the form of a look-up table.

[0011] The memory can further include a reference coordinate that is a position of a reference of the sensing coordinate in the coordinate system.

[0012] The first intermediate coordinate can be a remainder of a value obtained by subtracting the reference coordinate from the sensing coordinate and dividing the result by the width.

[0013] The memory can further include an integer value obtained by dividing the sensing coordinate by the width.

[0014] The calculated coordinate can be a value obtained by adding the second intermediate coordinate, a value obtained by multiplying the integer value by the width, and the reference coordinate.

[0015] Each of the plurality of sensing units can include an electrode extending in the first direction, and a cross electrode extending in the second direction and insulatedly crossing the electrode.

[0016] The input sensor can sense an input generated by a touch through a change in mutual capacitance capacity formed between the electrode and the cross electrode, and sense an input generated by an input device through a change in capacitance capacity of each of the electrode and the cross electrode.

[0017] A coordinate correction method according to an embodiment of the present application can include the steps of obtaining a sensing coordinate from an input sensor in which a plurality of sensing units are defined, converting the sensing coordinate into a first intermediate coordinate based on a coordinate unit defined from a width of each of the plurality of sensing units, correcting the first intermediate coordinate based on first modeling data and second modeling data to obtain a second intermediate coordinate, and obtaining a calculated coordinate based on the second intermediate coordinate, wherein the coordinate correction method further includes obtaining the first modeling data from a first sensing unit among the plurality of sensing units and a second sensing unit adjacent to the first sensing unit in a first direction, and obtaining the second modeling data from the first sensing unit and a third sensing unit adjacent to the first sensing unit in a second direction crossing the first direction.

[0018] The step of acquiring the first modeling data can include a step of acquiring a first function having a sensing value for an input value input continuously from a middle point of the first sensing unit to a middle point of the second sensing unit in the first direction.

[0019] The step of acquiring the second modeling data can include a step of acquiring a second function having a sensing value for an input value input continuously from the middle point of the first sensing unit to a middle point of the third sensing unit in the second direction.

[0020] The first intermediate coordinates can include a first x coordinate and a first y coordinate, and the second intermediate coordinates include a second x coordinate and a second y coordinate, and in the step of acquiring the second intermediate coordinates, the first x coordinate is substituted into a first inverse function of the first function to acquire the second x coordinate, and the first y coordinate is substituted into a second inverse function of the second function to acquire the second y coordinate.

[0021] The first function and the second function can have the same shape as each other.

[0022] The step of converting the sensing coordinates into the first intermediate coordinates can include a step of calculating a remainder of a value obtained by subtracting a reference coordinate from the sensing coordinates and dividing the sensing coordinates by the width, wherein the reference coordinate is a position serving as a reference of the sensing coordinates in the coordinate system.

[0023] The step of acquiring the calculation coordinates can include a step of adding the second intermediate coordinates, a value obtained by multiplying an integer value obtained by dividing the sensing coordinates by the width by the width, and the reference coordinate.

[0024] According to the present application, an electronic device can include an input sensor, a control section, and a memory. First modeling data and second modeling data can be stored in the memory. The control section can correct a sensing value sensed by the input sensor based on the first modeling data and the second modeling data to acquire calculation coordinates identical to an actually input input value. Accordingly, coordinate accuracy of the electronic device can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a perspective view of an electronic device according to an embodiment of the present application.

[0026] Figure 2 is a block diagram schematically illustrating an electronic device and an input device according to an embodiment of the present application.

[0027] Figure 3a is a cross-sectional view of an electronic device according to an embodiment of the present application.

[0028] Figure 3b is a cross-sectional view of an electronic device according to an embodiment of the present application.

[0029] Figure 4 is a plan view of a display panel according to an embodiment of the present application.

[0030] Figure 5a illustrates an input sensor, a control section, and a memory according to an embodiment of the present application.

[0031] Figure 5b is a cross-sectional view of a portion of an electronic device according to an embodiment of the present application taken along line Figure 5a I-I'.

[0032] Figure 6 is a plan view of a portion of an electronic device according to an embodiment of the present application. Figure 5a AA'.

[0033] Figure 7 is a cross-sectional view of a portion of an electronic device according to an embodiment of the present application taken along a line corresponding to Figure 6 II-II'.

[0034] Figure 8 illustrates a signal of an input sensor receiving a first signal according to an embodiment of the present application.

[0035] Figure 9 illustrates intensity of a signal for an input position in a plurality of bridge patterns according to an embodiment of the present application.

[0036] Figure 10 illustrates an input value provided to an input sensor and a sensed value for the input value according to an embodiment of the present application.

[0037] Figure 11a illustrates a first function according to an embodiment of the present application.

[0038] Figure 11b illustrates a second function according to an embodiment of the present application.

[0039] Figure 12 is a flowchart illustrating a coordinate correction method according to an embodiment of the present application.

[0040] Figure 13a illustrates a sensed coordinate acquisition step according to an embodiment of the present application.

[0041] Figure 13b illustrates a second intermediate coordinate acquisition step according to an embodiment of the present application.

[0042] Figure 13c illustrates a calculated coordinate acquisition step according to an embodiment of the present application.

[0043] Explanation of Reference Numerals

[0044] DD: electronic device IS: input sensor

[0045] MM: memory CT: control section

[0046] CT1: first reference point moving section CT2: coordinate correction section

[0047] CT3: second reference point moving section DETAILED DESCRIPTION

[0048] In the present specification, when it is mentioned that a certain constituent element (or region, layer, portion, etc.) is "on" another constituent element, is "connected to" or "joined to" another constituent element, it means that it can be directly placed on or directly connected / joined to another constituent element, or a third constituent element can be placed therebetween.

[0049] The same reference numerals refer to the same constituent elements. Also, in the drawings, the thickness, ratio, and size of the constituent elements are exaggerated for the purpose of effective explanation of the technical content.

[0050] "And / or" includes all combinations of one or more of the relevant constituent elements that can be defined.

[0051] The first, second, and the like terms can be used to explain a variety of constituent elements, but the constituent elements should not be limited by the terms. The terms are used only for the purpose of distinguishing one constituent element from another in the context of a specific case. For example, a first constituent element can be named a second constituent element, and similarly, a second constituent element can be named a first constituent element without departing from the scope of the present invention. As long as there is no ambiguity, a singular expression also includes a plural expression.

[0052] Also, the terms "below", "lower", "above", "upper", and the like are used to explain the relative relationship of the constituent elements shown in the drawings. The terms are relative concepts explained based on the direction indicated in the drawings.

[0053] Unless defined differently, all terms used in the present specification (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention pertains. Also, the terms should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and, unless explicitly defined in the present specification, should not be interpreted in an idealized or overly formal sense.

[0054] The terms "comprise" or "have" should be understood as specifying the presence of stated features, numbers, steps, operations, components, parts, or combinations thereof, but not precluding the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

[0055] Hereinafter, embodiments of the present application will be described with reference to the accompanying drawings.

[0056] Figure 1 is a perspective view of an electronic device according to an embodiment of the present application.

[0057] Referring to Figure 1 , the electronic device DD can be a device activated according to an electrical signal. For example, the electronic device DD can be a portable phone, a tablet computer, a car navigation, a game machine, or a wearable device, but is not limited thereto. Figure 1 An example is illustrated in which the electronic device DD is a portable phone.

[0058] In the electronic device DD, an active area DD-AA and a surrounding area DD-NA adjacent to the active area DD-AA can be defined. The electronic device DD can display an image through the active area DD-AA. The active area DD-AA can include a plane defined by a first direction DR1 and a second direction DR2. The second direction DR2 can cross the first direction DR1. A thickness direction of the electronic device DD can be parallel to a third direction DR3 crossing (e.g., perpendicular to) the first direction DR1 and the second direction DR2. Accordingly, a front surface (or an upper surface) and a back surface (or a lower surface) of components constituting the electronic device DD can be defined with reference to the third direction DR3.

[0059] The electronic device DD can sense an input applied from an outside of the electronic device DD. The outside input can be a user's input. The user's input can include various forms of outside input such as a part of a user's body, light, heat, or pressure.

[0060] Figure 1 The illustrated electronic device DD can sense an input generated by a user's touch and an input generated by an input device ID. The input device ID can denote a device other than a user's body. For example, the input device ID can be an active pen, a handwriting pen, a touch pen, or an electronic pen. Hereinafter, a case in which the input device ID is an active pen will be described.

[0061] The electronic device DD and the input device ID can perform bidirectional communication. The electronic device DD can provide an uplink signal to the input device ID. For example, the uplink signal can include a synchronization signal or information of the electronic device DD, but is not particularly limited thereto. The input device ID can provide a downlink signal to the electronic device DD. The downlink signal can include a synchronization signal or state information of the input device ID. For example, the downlink signal can include coordinate information of the input device ID, battery information of the input device ID, inclination information of the input device ID, and / or various information stored in the input device ID, but is not particularly limited thereto.

[0062] Figure 2 FIG. 1 is a block diagram schematically illustrating an electronic device and an input device according to an embodiment of the present application.

[0063] Referring to Figure 2 The electronic device DD can include a display panel DP and an input sensor IS.

[0064] The display panel DP can be a configuration that substantially generates an image. The display panel DP can be a light emitting type display panel, for example, the display panel DP can include an organic light emitting display panel, a quantum dot display panel, a micro LED display panel, or a nano LED display panel.

[0065] The input sensor IS can be disposed on the display panel DP. The input sensor IS can sense an external input applied from the outside. The input sensor IS can sense both an input generated by a user's body OI and an input generated by the input device ID.

[0066] The input sensor IS can operate by time division driving. For example, the input sensor IS can repeatedly drive in a first mode and a second mode alternately. The first mode can be a mode of sensing an input caused by a user's body OI, and the second mode can be a mode of sensing an input caused by the input device ID.

[0067] In the second mode, the input sensor IS can provide an uplink signal ULS to the input device ID. In a case where the input device ID receives the uplink signal ULS and is synchronized with the electronic device DD, the input device ID can provide a downlink signal DLS to the input sensor IS.

[0068] The input device ID can include a power supply ID-1, a memory ID-2, a control section ID-3, a transmission section ID-4, a reception section ID-5, and a pen electrode ID-6. However, the constituent elements constituting the input device ID are not limited to the listed constituent elements. For example, the input device ID can further include an electrode switch that converts the pen electrode ID-6 into a signal transmission mode or a signal reception mode, a pressure sensor that senses pressure, or a rotation sensor that senses rotation, etc.

[0069] The power supply ID-1 can include a battery or a high-capacity capacitor that supplies power to the input device ID, etc. The memory ID-2 can store function information of the input device ID. The control section ID-3 can control the operation of the input device ID. Each of the transmission section ID-4 and the reception section ID-5 can communicate with the electronic device DD through the pen electrode ID-6. The transmission section ID-4 can be referred to as a signal generator or a transmission circuit, and the reception section ID-5 can be referred to as a signal receiver or a reception circuit. The input sensor IS can acquire coordinates or inclination of the input device ID through the pen electrode ID-6.

[0070] Figure 3a is a cross-sectional view of an electronic device according to an embodiment of the present application.

[0071] Referring to Figure 3a , the electronic device DD can include a display panel DP and an input sensor IS.

[0072] The display panel DP can include a base layer BS1, a circuit layer ML-D, a light emitting element layer EML, and an encapsulation layer ECL.

[0073] The base layer BS1 can be a member that provides a base surface on which the circuit layer ML-D is disposed. The base layer BS1 can be a glass substrate, a metal substrate, or a polymer substrate, etc. However, the base layer BS1 according to an embodiment of the present application is not limited thereto. For example, the base layer BS1 can be an inorganic layer, an organic layer, or a composite material layer.

[0074] The base layer BS1 can have a multi-layer structure. For example, the base layer BS1 can include a first synthetic resin layer, a silicon oxide (SiO x ) 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 can be referred to as a base barrier layer.

[0075] Each of the first synthetic resin layer and the second synthetic resin layer can include a polyimide-based resin. Also, each of the first synthetic resin layer and the second synthetic resin layer can include 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. Also, in the present specification, the “……”-based resin means including a functional group of “……”.

[0076] The circuit layer ML-D can be disposed on the base layer BS1. The circuit layer ML-D can include an insulating layer, a semiconductor pattern, a conductive pattern, and a signal line, etc. The insulating layer, the semiconductor layer, and the conductive layer can be formed on the base layer BS1 by coating, deposition, etc., and then the insulating layer, the semiconductor layer, and the conductive layer are selectively patterned by a plurality of photolithography processes. Then, the semiconductor pattern, the conductive pattern, and the signal line included in the circuit layer ML-D can be formed.

[0077] The light emitting element layer EML can be disposed on the circuit layer ML-D. The light emitting element layer EML can include a light emitting element. For example, the light emitting element layer EML can include an organic light emitting substance, a quantum dot, a quantum rod, a micro-LED, or a nano-LED.

[0078] The encapsulation layer ECL can be disposed on the light emitting element layer EML. The encapsulation layer ECL can include inorganic layers, organic layers, and inorganic layers which are sequentially stacked, but the layers constituting the encapsulation layer ECL are not limited thereto.

[0079] The inorganic layer can protect the light emitting element layer EML from moisture and oxygen, and the organic layer can protect the light emitting element layer EML from foreign substances such as dust particles. The inorganic layer can include a silicon nitride layer, a silicon oxynitride layer, a silicon oxide layer, a titanium oxide layer, or an aluminum oxide layer, etc. The organic layer can include an acryl-based organic layer, but is not limited thereto.

[0080] The input sensor IS can be formed on the display panel DP through a continuous process. In this case, the input sensor IS can be expressed as being directly disposed on the display panel DP. The direct disposition can mean that a third constituent element is not disposed between the input sensor IS and the display panel DP. That is, a separate adhesive member can not be disposed between the input sensor IS and the display panel DP. In this case, the thickness of the electronic device DD can be reduced.

[0081] The input sensor IS can include a base insulating layer BS2 and a sensing circuit layer ML-T.

[0082] The base insulating layer BS2 can be an inorganic layer including one of silicon nitride, silicon oxynitride, and silicon oxide. Alternatively, the base insulating layer BS2 can be an organic layer including an epoxy resin, an acrylic resin, or an imide-based resin. The base insulating layer BS2 can have a single layer structure, or a multi-layer structure stacked in a third direction DR3.

[0083] The sensing circuit layer ML-T can be disposed on the base insulating layer BS2. The sensing circuit layer ML-T can include a plurality of insulating layers and a plurality of conductive layers. The plurality of conductive layers can include a sensing electrode that senses an input from the outside, a sensing wire electrically connected to the sensing electrode, and a sensing pad electrically connected to the sensing wire. This will be described later.

[0084] Figure 3b is a cross-sectional view of an electronic device according to an embodiment of the present application. In the description of Figure 3b , the same reference numerals are used for the components described through Figure 3a and a description thereof will be omitted.

[0085] Referring to Figure 3b , the electronic device DD-1 can include a display panel DP-1 and an input sensor IS-1.

[0086] The display panel DP-1 can include a base layer BS1, a circuit layer ML-D, and a light emitting element layer EML. The input sensor IS-1 can include a base insulating layer BS2-1 and a sensing circuit layer ML-T.

[0087] The base insulating layer BS2-1 can be disposed on the light emitting element layer EML. A predetermined space can be defined between the base insulating layer BS2-1 and the light emitting element layer EML. The space can be filled with air or an inert gas. Also, in an embodiment of the present application, the space can also be filled with a filling material such as a silicon-based polymer, an epoxy-based resin, or an acrylic-based resin.

[0088] A bonding member SLM can be disposed between the base layer BS1 and the base insulating layer BS2-1. The bonding member SLM can bond the base layer BS1 and the base insulating layer BS2-1. The bonding member SLM can include an organic material such as a photocurable resin or a photo-plastic resin, or an inorganic material such as a frit seal, and is not limited to one embodiment.

[0089] Figure 4 is a plan view of a display panel according to an embodiment of the present application.

[0090] Referring toFigure 4 The display panel DP can define an active area DP-AA and a non-active area DP-NAA adjacent to the active area DP-AA. The active area DP-AA can be an area in which an image is displayed. A plurality of pixels PX can be arranged in the active area DP-AA. The active area DP-AA can overlap an active area DD-AA (refer to Figure 1 ) of the electronic device DD (refer to Figure 1 ). The non-active area DP-NAA can be an area in which a driving circuit or a driving wire, etc. is arranged.

[0091] Each of the plurality of pixels PX can display one of primary colors or one of mixed colors. The primary colors can include red, green, or blue. The mixed colors can include white, yellow, cyan, magenta, etc. However, the colors displayed by the plurality of pixels PX are not limited thereto.

[0092] The display panel DP can include a base layer BS1, a plurality of pixels PX, a plurality of signal wires GL, DL, PL, EL, a plurality of display pads PDD, and a plurality of sensing pads PDT.

[0093] The plurality of signal wires GL, DL, PL, EL can be arranged on the base layer BS1. The base layer BS1 can be a base layer BS1 (refer to Figure 3a ) of the display panel DP (refer to Figure 3a ). The plurality of signal wires GL, DL, PL, EL can be connected to the plurality of pixels PX and transmit electrical signals to the plurality of pixels PX. The plurality of signal wires GL, DL, PL, EL can include a plurality of scan wires GL, a plurality of data wires DL, a plurality of power wires PL, and a plurality of emission control wires EL. However, this is merely exemplary, and the configuration of the plurality of signal wires GL, DL, PL, EL according to an embodiment of the present application is not limited thereto. For example, the plurality of signal wires GL, DL, PL, EL according to an embodiment of the present application can further include an initialization voltage wire.

[0094] A power pattern VDD can be arranged in the non-active area DP-NAA. The power pattern VDD can be connected to the plurality of power wires PL. The display panel DP can include the power pattern VDD, thereby providing the same power signal to the plurality of pixels PX.

[0095] The plurality of display pads PDD can be arranged in the peripheral area DP-NAA. The plurality of display pads PDD can include a first pad PD1 and a second pad PD2. The first pad PD1 can be provided in a plurality. The plurality of first pads PD1 can be respectively electrically connected to the plurality of data lines DL. The second pad PD2 can be connected to the power pattern VDD and electrically connected to the plurality of power lines PL. The display panel DP can supply the plurality of pixels PX with the electrical signal supplied from the outside through the plurality of display pads PDD. In addition, the plurality of display pads PDD can include other pads for receiving the electrical signal in addition to the first pad PD1 and the second pad PD2, and is not limited to one embodiment.

[0096] The driving chip IC can be mounted in the peripheral area DP-NAA. The driving chip IC can be a timing control circuit in the form of a chip. The plurality of data lines DL can be respectively electrically connected to the plurality of first pads PD1 via the driving chip IC. However, this is only exemplary, and the driving chip IC according to one embodiment of the present application can also be mounted on a film separate from the display panel DP. In this case, the driving chip IC can be electrically connected to the plurality of display pads PDD through the film.

[0097] The plurality of sensing pads PDT can be arranged in the peripheral area DP-NAA. The plurality of sensing pads PDT can be respectively electrically connected to the plurality of sensing electrodes of the input sensor IS (refer to Figure 3a ) described below. The plurality of sensing pads PDT can include a plurality of first sensing pads TD1 and a plurality of second sensing pads TD2.

[0098] Figure 5a FIG. 1 illustrates an input sensor, a control portion, and a memory according to one embodiment of the present application, Figure 5b is a cross-sectional view taken along I-I' of Figure 5a according to one embodiment of the present application, Figure 6 is a plan view illustrating an AA' area of Figure 5a according to one embodiment of the present application.

[0099] Referring to Figure 5a to Figure 6 , the input sensor IS can be defined with an active area IS-AA and a peripheral area IS-NAA. The active area IS-AA can be an area activated according to an electrical signal. The active area IS-AA can overlap the active area DP-AA (refer to Figure 4 ) of the display panel DP (refer to Figure 4 ).

[0100] The active area IS-AA can be defined with a plurality of sensing units SU. The plurality of sensing units SU can be arranged in a first direction DR1 and a second direction DR2.

[0101] The peripheral region IS-NAA can surround the active region IS-AA. The peripheral region IS-NAA can overlap with a peripheral region DP-NAA (refer to Figure 4 ) of the display panel DP (refer to Figure 4 ).

[0102] The input sensor IS can include a base insulating layer IS-IL0, a plurality of sensing electrodes TE1, TE2, and a plurality of sensing wirings TL1, TL2.

[0103] The base insulating layer IS-IL0 can be the base insulating layer BS2 (refer to Figure 3a ) of the base substrate BS. Figure 3a

[0104] The plurality of sensing electrodes TE1, TE2 can be disposed in the active region IS-AA. Each of the plurality of sensing electrodes TE1, TE2 can have a single layer structure, or have a multi-layer structure which is stacked in a third direction DR3.

[0105] The plurality of sensing electrodes TE1, TE2 of the single layer structure can include a metal layer or a transparent conductive layer. The metal layer can include molybdenum, silver, titanium, copper, aluminum, or an alloy thereof. The transparent conductive layer can include a transparent conductive oxide such as indium tin oxide (ITO), indium zinc oxide (IZO), zinc oxide (ZnO), indium zinc tin oxide (IZTO), or the like. In addition, the transparent conductive layer can include a conductive polymer such as poly(ethylenedioxythiophene) (PEDOT), a metal nanowire, graphene, or the like.

[0106] The plurality of sensing electrodes TE1, TE2 of the multi-layer structure can include a metal layer. The metal layer can have, for example, a three-layer structure of titanium / aluminum / titanium. The plurality of sensing electrodes TE1, TE2 of the multi-layer structure can include at least one metal layer and at least one transparent conductive layer.

[0107] The plurality of sensing electrodes TE1, TE2 can include a plurality of electrodes TE1 and a plurality of cross electrodes TE2.

[0108] Each of the plurality of electrodes TE1 can extend in a first direction DR1. The plurality of electrodes TE1 can be arranged in a second direction DR2. Each of the plurality of electrodes TE1 can include a plurality of first portions SP1 and a plurality of second portions BP1. The plurality of first portions SP1 can also be referred to as a plurality of first sensing patterns SP1.

[0109] ​Each of the plurality of cross electrodes TE2 can extend along a second direction DR2. The plurality of cross electrodes TE2 can be arranged along a first direction DR1. Each of the plurality of cross electrodes TE2 can include a plurality of sensing patterns SP2 and a plurality of bridge patterns BP2. The plurality of sensing patterns SP2 can also be referred to as a plurality of second sensing patterns SP2.

[0110] Although Figure 5a Although an example in which two bridge patterns BP2 are connected to two sensing patterns SP2 adjacent to each other is illustrated, the plurality of bridge patterns BP2 and the plurality of sensing patterns SP2 according to an embodiment of the present application are not limited thereto. For example, two sensing patterns SP2 adjacent to each other can also be connected by one bridge pattern BP2.

[0111] The plurality of second portions BP1 can be disposed in a layer different from the plurality of bridge patterns BP2. The plurality of bridge patterns BP2 can be insulatedly crossed with the plurality of electrodes TE1. For example, the plurality of second portions BP1 can be respectively insulatedly crossed with the plurality of bridge patterns BP2.

[0112] The plurality of bridge patterns BP2 can be disposed on a base insulating layer IS-IL0. A first insulating layer IS-IL1 can be disposed on the base insulating layer IS-IL0 and cover the plurality of bridge patterns BP2. The first insulating layer IS-IL1 can have a single layer structure or a multi-layer structure. The first insulating layer IS-IL1 can include inorganic matter, organic matter, or a composite material.

[0113] The plurality of sensing patterns SP2, the plurality of first portions SP1, and the plurality of second portions BP1 can be disposed on the first insulating layer IS-IL1.

[0114] A plurality of contact holes CNT can be formed through the first insulating layer IS-IL1 along a third direction DR3. Two sensing patterns SP2 adjacent to each other among the plurality of sensing patterns SP2 can be electrically connected with a bridge pattern BP2 through the plurality of contact holes CNT.

[0115] A second insulating layer IS-IL2 can be disposed on the plurality of sensing patterns SP2, the plurality of first portions SP1, and the plurality of second portions BP1. The second insulating layer IS-IL2 can cover the plurality of sensing patterns SP2, the plurality of first portions SP1, and the plurality of second portions BP1. The second insulating layer IS-IL2 can include a single layer structure or a multi-layer structure. The second insulating layer IS-IL2 can include inorganic matter, organic matter, or a composite material.

[0116] Although Figure 5bAn exemplary illustration shows a bottom bridging structure in which multiple bridging patterns BP2 are arranged below multiple sensing patterns SP2, multiple first portions SP1, and multiple second portions BP1. However, the structure of the input sensor IS according to an embodiment of the present invention is not limited to this. For example, the input sensor IS according to an embodiment of the present invention may also have a top bridging structure in which multiple bridging patterns BP2 are arranged on multiple sensing patterns SP2, multiple first portions SP1, and multiple second portions BP1.

[0117] The multiple sensing wires TL1 and TL2 may include multiple first sensing wires TL1 and multiple second sensing wires TL2. The multiple first sensing wires TL1 may be electrically connected to multiple electrodes TE1 respectively. The multiple second sensing wires TL2 may be electrically connected to multiple cross electrodes TE2 respectively.

[0118] Multiple first sensing pads TD1 (reference) Figure 4 Multiple first sensing pads TD2 can be electrically connected to multiple first sensing wires TL1 via contact holes. Figure 4 It can be electrically connected to multiple second sensing wires TL2 through contact holes.

[0119] The electronic device DD may also include a control unit CT and a memory MM. The control unit CT can calibrate the sensing coordinates SC (refer to) sensed by the input sensor IS. Figure 13a The control unit CT may include a first reference point movement unit CT1, a coordinate correction unit CT2, and a second reference point movement unit CT3. The first reference point movement unit CT1, the coordinate correction unit CT2, and the second reference point movement unit CT3 will be described later.

[0120] The memory MM can store the calibration sensing coordinates SC (refer to...) Figure 13a The required variables. The memory MM may include first modeling data MD1 and second modeling data MD2. The first modeling data MD1 and the second modeling data MD2 will be explained later.

[0121] The input sensor IS can be operated via time-division multiplexing. The input sensor IS can be driven to alternate between a first mode and a second mode.

[0122] The first mode can be a touch mode that recognizes input through a part of the user's body. In the first mode, multiple electrodes TE1 can output sensing signals, and multiple cross electrodes TE2 receive driving signals. At this time, the electronic device DD (refer to...) Figure 2The driving signal can be applied to the plurality of cross electrodes TE2 to scan the active area IS-AA, and the area to which a touch is applied can be sensed by the sensing signal output from the plurality of electrodes TE1. For example, information about an external input can be acquired by a change in the capacitance capacity between the plurality of electrodes TE1 and the plurality of cross electrodes TE2.

[0123] In addition, this is merely an exemplary description, and the plurality of electrodes TE1 can receive a driving signal, the plurality of cross electrodes TE2 can output a sensing signal, and other electrical signals can be additionally received or output.

[0124] The second mode can be different from the first mode. The second mode can be a pen mode in which an input device ID (see Figure 2 ) is recognized. In the second mode, the same sensing signal can be provided to the plurality of electrodes TE1 and the plurality of cross electrodes TE2.

[0125] The input sensor IS can detect a voltage / current change amount of the sensing signal provided to the plurality of electrodes TE1 and the plurality of cross electrodes TE2. For example, the input sensor IS can be driven in the second mode in a manner of sensing a driving signal input from the outside (for example, an active electrostatic pen (AES pen)).

[0126] According to an embodiment of the present application, when a body OI (see Figure 2 ) of a user contacts or approaches the input sensor IS in the first mode, or when an input device ID (see Figure 2 ) contacts or approaches the input sensor IS in the second mode, the input sensor IS can acquire a sensing coordinate SC (see Figure 13a ). The control section CT can calculate a calculation coordinate CC (see Figure 13a ) based on the sensing coordinate SC (see Figure 13c ).

[0127] Figure 7 is a cross-sectional view of a portion of an electronic device taken along a line corresponding to II-II' of Figure 6 , according to an embodiment of the present application, Figure 8 illustrates a signal of an input sensor receiving a first signal, according to an embodiment of the present application.

[0128] Referring to Figure 6 to Figure 8 , the electronic device DD can further include a prevention of reflection layer POL and a window WP.

[0129] A reflection preventing layer POL can be disposed on the input sensor IS. The reflection preventing layer POL can include a polarizing layer. The reflection preventing layer POL can include a polarizer and a phase retarder. The polarizer and the phase retarder can include an extended type synthetic resin film or a coated type synthetic resin film. For example, the reflection preventing layer POL can be provided by dyeing a polyvinyl alcohol film (PVA film) with an iodine compound. The reflection preventing layer POL can reduce external light reflectance.

[0130] A window WP can be disposed on the reflection preventing layer POL. The window WP can include an optically transparent insulating substance. For example, the window WP can include glass or plastic. The window WP can have a multi-layer structure or a single layer structure. For example, the window WP can include a plurality of plastic films combined by an adhesive, or include a glass substrate and a plastic film combined by an adhesive.

[0131] The input device ID can be disposed on the window WP to transmit a first signal SG1.

[0132] A bridge pattern BP2 disposed adjacent to the first position P1 can be referred to as a first bridge pattern BP2-1, and a bridge pattern BP2 disposed adjacent to the third position P3 can be referred to as a second bridge pattern BP2-2.

[0133] The input device ID can be disposed at a position overlapping the second position P2. The pen electrode ID-6 can include a first electrode DT1 and a second electrode DT2. The first electrode DT1 can be disposed at an end of the input device ID. The second electrode DT2 can be disposed at a side surface of the body portion BD. The input sensor IS can acquire a coordinate of the input device ID through the first electrode DT1, and can acquire a tilt of the input device ID through the second electrode DT2.

[0134] The first electrode DT1 can transmit a first signal SG1. The first signal SG1 can have a first frequency. The first frequency can be 100 kHz to 140 kHz. For example, the first frequency can be 120 kHz. However, this is merely exemplary, and the first frequency according to an embodiment of the present application is not limited thereto. For example, the first frequency can be 210 kHz to 250 kHz. The first signal SG1 can form an electric field. The input sensor IS can calculate a sensing signal IS-SG1 having a Gaussian distribution shape from a plurality of sensing electrodes TE1, TE2 that sense the electric field.

[0135] The first signal SG1 can include a first sub-signal SG1a, a second sub-signal SG1b, and a third sub-signal SG1c. The first sub-signal SG1a, the second sub-signal SG1b, and the third sub-signal SG1c are signals classified according to an angle at which the first signal SG1 is emitted. The first sub-signal SG1a can be emitted toward the first position P1. The second sub-signal SG1b can be emitted toward the second position P2. The third sub-signal SG1c can be emitted toward the third position P3. The first position P1, the second position P2, and the third position P3 can be arranged in order along the first direction DR1.

[0136] The input sensor IS can calculate a first sensing signal IS-SG1a of the first intensity S1 at the first position P1 of the first bridge pattern BP2-1 while sensing the first sub-signal SG1a at the first bridge pattern BP2-1. The input sensor IS can calculate a second sensing signal IS-SG1b of the second intensity S2 at the second position P2 of the first section SP1 while sensing the second sub-signal SG1b at the first section SP1. The input sensor IS can calculate a third sensing signal IS-SG1c of the third intensity S3 at the third position P3 of the second bridge pattern BP2-2 while sensing the third sub-signal SG1c at the second bridge pattern BP2-2.

[0137] The input sensor IS can combine the first sensing signal IS-SG1a, the second sensing signal IS-SG1b, and the third sensing signal IS-SG1c to form a sensing signal IS-SG1. The input sensor IS can acquire a sensing coordinate SC by sensing an input from the outside through the sensing signal IS-SG1 (refer to FIG. 2). Figure 13a ) Although Figure 8 The first intensity S1 and the third intensity S3 according to an embodiment of the present application can be identified as different intensities according to a position at which the input device ID is disposed, although an example in which the first intensity S1 and the third intensity S3 are the same is illustrated.

[0138] For example, in a case in which the first intensity S1 of the first sensing signal IS-SG1a and the third intensity S3 of the third sensing signal IS-SG1c are different from each other, the first intensity S1 and the third intensity S3 can be compared to acquire a sensing coordinate SC (refer to FIG. 2). Figure 13a For example, in a case in which the first intensity S1 is greater than the third intensity S3, the input sensor IS can identify the sensing coordinate SC (refer to FIG. 2) as a coordinate that moves from the second position P2 in a direction adjacent to the first position P1. In a case in which the first intensity S1 is less than the third intensity S3, the input sensor IS can identify the sensing coordinate SC (refer to FIG. 2) as a coordinate that moves from the second position P2 in a direction adjacent to the third position P3. Figure 13a Figure 13a

[0139] ​​The window WP according to an embodiment of the present application can be a thin window having a thickness HT-WP of 0.5 mm or less. The thickness of the electronic device DD (refer to Figure 1 ) can be reduced due to the window WP. The distance HT1-1 between the first electrode DT1 and the plurality of sensing electrodes TE1, TE2 can be reduced.

[0140] Accordingly, the width of the electric field of the first signal SG1 emitted from the first electrode DT1 can be reduced. The first intensity S1 of the first sensing signal IS-SG1a for the first position P1 and the third intensity S3 of the third sensing signal IS-SG3c for the third position P3 recognized by the input sensor IS can be reduced. Accordingly, the difference between each of the first intensity S1 and the third intensity S3 and the second intensity S2 can be increased. In this case, the sensing coordinates SC (refer to Figure 13a ) sensed by the input sensor IS can be sensed as coordinates deviated toward the first position P1 or the third position P3. Accordingly, a straight line input by the input device ID can be sensed as a zigzag shape, and the linearity of the input input by the input device ID can be reduced. In this case, in order to obtain accurate coordinates, the linearity can be improved by increasing the number of sensing electrodes, but the number of sensing wirings can increase as the number of sensing electrodes increases. However, according to the present application, the control part CT (refer to Figure 5a ) can correct the sensing coordinates SC (refer to Figure 13a ). The control part CT (refer to Figure 5a ) can correct the sensing coordinates SC (refer to Figure 13a ) to calculate the calculation coordinates CC (refer to Figure 13c ). The calculation coordinates CC (refer to Figure 13c ) can be the same as the coordinates input to the input sensor IS. Accordingly, the number of sensing electrodes can not be increased in order to obtain accurate coordinates. Accordingly, the number of sensing wirings can not increase due to the increase in the number of sensing electrodes. Accordingly, the increase in the area of the surrounding area IS-NAA can be prevented.

[0141] The first portion SP1 according to an embodiment of the present application can have a first width WD1 in the second direction DR2. The bridge pattern BP2 can have a second width WD2. The maximum value of the first width WD1 can be greater than the maximum value of the second width WD2.

[0142] Accordingly, the area of the first portion SP1 can be larger than the area of the second portion BP1. Thus, the amount of change in the capacitance capacity measured at the first portion SP1 can be different from the amount of change in the capacitance capacity measured at the second portion BP1. Accordingly, the difference between each of the first and third intensities S1 and S3 and the second intensity S2 can increase. In this case, the sensed coordinates SC (refer to Figure 13a ) sensed by the input sensor IS can be sensed as coordinates biased toward the first or third position P1 or P3. Thus, a straight line input by the input device ID can be sensed as a zigzag shape, but according to the present application, the control section CT (refer to Figure 5a ) can correct the sensed coordinates SC (refer to Figure 13a ). The control section CT (refer to Figure 5a ) can calculate the calculated coordinates CC (refer to Figure 13a ) by correcting the sensed coordinates SC (refer to Figure 13c ). The calculated coordinates CC (refer to Figure 13c ) can be the same as the coordinates input to the input sensor IS. Thus, the accuracy of the coordinates sensed by the input sensor IS can be improved, and the linearity of the input input by the input device ID can be improved.

[0143] Figure 9 FIG. 1 illustrates the intensity of a signal with respect to an input position in a plurality of bridge patterns according to an embodiment of the present application, Figure 10 FIG. 2 illustrates an input value provided to an input sensor and a sensed value with respect to the input value according to an embodiment of the present application.

[0144] Referring to Figure 6 to Figure 10 , a first curve IS-BP21 is a curve of the intensity of a signal input to the first through third positions P1 through P3 measured at the first bridge pattern BP2-1. The first curve IS-BP21 can have a curved shape. As moving from the first position P1 toward the second position P2, the slope of the first curve IS-BP21 can increase. As moving from the second position P2 toward the third position P3, the slope of the first curve IS-BP21 can decrease.

[0145] A second curve IS-BP22 is a curve of the intensity of a signal input to the first through third positions P1 through P3 measured at the second bridge pattern BP2-2. The second curve IS-BP22 can have a curved shape. As moving from the first position P1 toward the second position P2, the slope of the second curve IS-BP22 can decrease. As moving from the second position P2 toward the third position P3, the slope of the second curve IS-BP22 can increase.

[0146] The input value IV can be inputted to the input sensor IS constantly at the first interval PC1 along the first position P1, the second position P2, and the third position P3. The input value IV can be a coordinate of a position of an input from the outside. For example, the input value IV can be a coordinate of a position of each of the user's body OI (refer to Figure 2 ) and the input device ID (refer to Figure 2 ).

[0147] The input sensor IS can calculate the sensed value SV based on the input value IV. The sensed value SV can be a coordinate sensed by the input sensor IS from the input value IV. Ideally, the input value IV and the sensed value SV should be the same, but can be sensed differently due to the shape of each of the first curve IS-BP21 and the second curve IS-BP22. The intervals PC2-1, PC2-2 between the sensed values SV can be different. For example, between the first position P1 and the second position P2, the sensed value SV can be sensed to be biased toward the first position P1. Between the second position P2 and the third position P3, the sensed value SV can be sensed to be biased toward the third position P3. The input value IV inputted to the input sensor IS and the sensed value SV actually sensed can be different. However, according to the present application, the control part CT can correct the sensed value SV. The control part CT can correct the sensed value SV to acquire the calculated coordinate CC (refer to Figure 13c ) which is the same as the input value IV. The coordinate accuracy of the electronic device DD can be improved, and the electronic device DD which has improved detection reliability can be provided.

[0148] Figure 11a FIG. 1 illustrates a first function according to an embodiment of the present application, Figure 11b FIG. 2 illustrates a second function according to an embodiment of the present application.

[0149] Referring to Figure 5a , Figure 6 , Figure 11a , and Figure 11b , the memory MM can include the first modeling data MD1 and the second modeling data MD2.

[0150] The first modeling data MD1 can be acquired from the first sensing unit SU1 and the second sensing unit SU2 adjacent to the first sensing unit SU1 in the first direction DR1. The first sensing unit SU1 can be one of the plurality of sensing units SU.

[0151] The first modeling data MD1 can have sensed values for input values inputted consecutively in the first direction DR1 from the first position P1 to the third position P3. In other words, the first modeling data MD1 can be modeling data representing a correspondence between the input values and the sensed values. The input values can be x values of coordinates of positions of inputs from the outside. The sensed values can be x values of coordinates of which the input sensor IS senses the input values. The first position P1 can also be referred to as a middle point P1 of the first sensing unit SU1, and the third position P3 can also be referred to as a middle point P3 of the second sensing unit SU2.

[0152] The first modeling data MD1 can be stored in the memory MM in the form of a first function F1. The input values IV-X inputted consecutively in the first direction DR1 from the first position P1 to the third position P3 can be defined as an x axis of the first function F1. For example, an x value of the first function F1 corresponding to the first position P1 can be a first input value IV-X1. An x value of the first function F1 corresponding to the second position P2 can be a second input value IV-X2. An x value of the first function F1 corresponding to the third position P3 can be a third input value IV-X3. The sensed values SV-X for the input values IV-X can be defined as a y axis of the first function F1.

[0153] The second modeling data MD2 can be acquired from the first sensing unit SU1 and a third sensing unit SU3 adjacent to the first sensing unit SU1 in a second direction DR2.

[0154] The second modeling data MD2 can have sensed values for input values inputted consecutively in the second direction DR2 from the first position P1 to the fourth position P4. In other words, the second modeling data MD2 can be modeling data representing a correspondence between the input values and the sensed values. The input values can be y values of coordinates of positions of inputs from the outside. The sensed values can be y values of coordinates of which the input sensor IS senses the input values. The fourth position P4 can also be referred to as a middle point P4 of the third sensing unit SU3.

[0155] The second modeling data MD2 can be stored in the memory MM in the form of a second function F2. The input values IV-Y inputted consecutively in the second direction DR2 from the first position P1 to the fourth position P4 can be defined as an x axis of the second function F2. For example, an x value of the second function F2 corresponding to the first position P1 can be a first input value IV-Y1. An x value of the second function F2 corresponding to the fourth position P4 can be a second input value IV-Y2. The sensed values SV-Y for the input values IV-Y can be defined as a y axis of the second function F2.

[0156] Although Figure 11a and Figure 11bThe first function F1 and the second function F2 are exemplarily illustrated as having different shapes from each other, but the shapes of the first function F1 and the second function F2 according to an embodiment of the present application are not limited thereto. For example, the first function F1 and the second function F2 can have the same shape.

[0157] Although Figure 11a and Figure 11b The first modeling data MD1 and the second modeling data MD2 are illustrated as having a function form, but the form of the first modeling data MD1 and the second modeling data MD2 according to an embodiment of the present application is not limited thereto. For example, each of the first modeling data MD1 and the second modeling data MD2 can be stored in the memory MM in a form of a look-up table.

[0158] Figure 12 is a flowchart illustrating a coordinate correction method according to an embodiment of the present application, Figure 13a illustrates a sensing coordinate acquisition step according to an embodiment of the present application, Figure 13b illustrates a second intermediate coordinate acquisition step according to an embodiment of the present application, Figure 13c illustrates a calculation coordinate acquisition step according to an embodiment of the present application.

[0159] Referring to Figure 5a and Figure 11a to Figure 13c , the input sensor IS can sense an input from the outside to acquire a sensing coordinate SC (S100). An x value of the sensing coordinate SC can be x in , and a y value of the sensing coordinate SC can be y in . The control section CT can correct the sensing coordinate SC to acquire a calculation coordinate CC.

[0160] The control section CT can include a first reference point moving section CT1, a coordinate correction section CT2, and a second reference point moving section CT3.

[0161] The first reference point moving section CT1 can convert the sensing coordinate SC into a first intermediate coordinate MC1 based on the coordinate system CS (S200).

[0162] The coordinate system CS can cover an active area IS-AA of the input sensor IS. An x axis of the coordinate system CS can be parallel to the first direction DR1. A y axis of the coordinate system CS can be parallel to the second direction DR2.

[0163] The coordinate system CS can include a plurality of coordinate units CU. The plurality of coordinate units CU can be arranged along the first direction DR1 and the second direction DR2. Each of the plurality of coordinate units CU can have a width WD-X in the first direction DR1 and a width WD-Y in the second direction DR2. The width WD-X in the first direction DR1 can be defined from a width WD-SU1 in the first direction DR1 of each of the plurality of sensing units SU (refer to Figure 6 ). The width WD-X in the first direction DR1 can be the same as the width WD-SU1 in the first direction DR1 of each of the plurality of sensing units SU (refer to Figure 6 ). The width WD-Y in the second direction DR2 can be defined from a width WD-SU2 in the second direction DR2 of each of the plurality of sensing units SU (refer to Figure 6 ). The width WD-Y in the second direction DR2 can be the same as the width WD-SU2 in the second direction DR2 of each of the plurality of sensing units SU (refer to Figure 6 ). The width WD-X in the first direction DR1 can be the same as the width WD-Y in the second direction DR2.

[0164] The memory MM can further include a reference coordinate RC. The reference coordinate RC can be a coordinate in the coordinate system CS for a position of a reference as the sensing coordinate SC. The reference coordinate RC can be a coordinate defining an active area IS-AA of the input sensor IS. The memory MM can store an x off value as an x value of the reference coordinate RC and a y off value as a y value of the reference coordinate RC.

[0165] The first reference point moving section CT1 can convert the coordinate system CS into an intermediate coordinate system CS-1. The intermediate coordinate system CS-1 can correspond to one of the plurality of coordinate units CU.

[0166] The first reference point moving section CT1 can convert the sensing coordinate SC into a first intermediate coordinate MC1 based on Mathematical Formula 1. An x value of the first intermediate coordinate MC1 can be x1 and a y value of the first intermediate coordinate MC1 can be y1. x1 can be referred to as a first x coordinate and y1 can be referred to as a first y coordinate.

[0167] [Mathematical Formula 1]

[0168] x1 = (x in - x off ) mod (WD-X)

[0169] y1 = (y in - y off ) mod (WD-Y)

[0170] In the mathematical formula 1, x1 can be x in With x off The remainder obtained by dividing the difference by the width WD-X of each of the multiple coordinate units CU in the first direction DR1. In the mathematical formula 1, y1 can be the remainder obtained by dividing y... in With y off The remainder is obtained by dividing the difference by the width WD-Y of each of the multiple coordinate elements CU in the second direction DR2.

[0171] The coordinate correction unit CT2 can correct the first intermediate coordinate MC1 based on the first modeling data MD1 and the second modeling data MD2 to obtain the second intermediate coordinate MC2 (S300). The x-value of the second intermediate coordinate MC2 can be x2, and the y-value of the second intermediate coordinate MC2 can be y2. x2 can be called the second x-coordinate, and y2 can be called the second y-coordinate.

[0172] When the first modeling data MD1 is the first function F1 and the second modeling data MD2 is the second function F2, the coordinate correction unit CT2 can substitute x1 into the inverse function of the first function F1 to obtain x2, and can substitute y1 into the inverse function of the second function F2 to obtain y2.

[0173] When each of the first modeling data MD1 and the second modeling data MD2 is a lookup table, the coordinate correction unit CT2 can substitute x1 into the lookup table to obtain x2, and can substitute y1 into the lookup table to obtain y2.

[0174] According to an embodiment of the present invention, each of the first modeling data MD1 and the second modeling data MD2 can be applied to each of a plurality of coordinate units CU by repeating the sensing unit SU. That is, the control unit CT can apply the first modeling data MD1 and the second modeling data MD2 obtained from a portion of the sensing units SU to each of the plurality of coordinate units CU.

[0175] The second reference point moving part CT3 can obtain the calculated coordinates CC(S400) based on the second intermediate coordinates MC2.

[0176] The memory MM may include an integer value obtained by dividing the sensing coordinate SC by the width WD-X, WD-Y of each of the plurality of coordinate units CU. The integer value may include a first integer value and a second integer value. The first integer value may be obtained by dividing x... in The integer part of the value obtained by dividing by the width WD-X in the first direction DR1. The second integer value can be the y... in The integer part of the value obtained by dividing by the width WD-Y in the second direction DR2. The first integer value and the second integer value can be stored in memory MM.

[0177] The second reference point moving section CT3 can convert the second intermediate coordinates MC2 into the calculated coordinates CC based on mathematical expression 2. The x value of the calculated coordinates CC can be x c , and the y value of the calculated coordinates CC can be y c .

[0178] [mathematical expression 2]

[0179] x c = x2 + (first integer value x (WD - X)) + x off

[0180] y c = y2 + (second integer value x (WD - Y)) + y off

[0181] The calculated coordinates CC can be a value obtained by adding the second intermediate coordinates MC2, a value obtained by multiplying the integer value by the width WD-X, WD-Y of each of the coordinate units CU, and the reference coordinates RC. In the mathematical expression 2, x c may be a value obtained by adding x2, a value obtained by multiplying the first integer value by the width WD-X in the first direction DR1, and x off . In the mathematical expression 2, y c may be a value obtained by adding y2, a value obtained by multiplying the second integer value by the width WD-Y in the second direction DR2, and y off .

[0182] According to the present application, the control section CT can acquire the calculated coordinates CC identical to the input values IV (refer to Figure 10 ) from the sensed values SV (refer to Figure 10 ) based on the first modeling data MD1 and the second modeling data MD2. The coordinate accuracy of the electronic device DD (refer to Figure 1 ) can be improved. Thus, the electronic device DD (refer to Figure 1 ) with improved reliability can be provided.

[0183] The above, although described with reference to the preferred embodiments of the present application, it is understood by those skilled in the art or those with ordinary knowledge in the art that various modifications and changes can be made to the present application without departing from the spirit and technical scope of the present application as recited in the claims. Therefore, the technical scope of the present application is not limited to the specific contents described in the detailed description of the specification, but should be determined only by the scope recited in the claims.

Claims

1. An electronic device comprising: The input sensor senses external input to obtain sensing coordinates and defines multiple sensing units; The memory includes first modeling data and second modeling data. The first modeling data is obtained from a first sensing unit among the plurality of sensing units and a second sensing unit adjacent to the first sensing unit in a first direction. The second modeling data is obtained from the first sensing unit and a third sensing unit adjacent to the first sensing unit in a second direction intersecting the first direction. as well as The control unit corrects the sensed coordinates to obtain calculated coordinates. The control unit includes: The first reference point moving unit converts the sensing coordinates into first intermediate coordinates based on a coordinate system including coordinate units defined from the width of each of the plurality of sensing units; The coordinate correction unit corrects the first intermediate coordinates based on the first modeling data and the second modeling data to obtain the second intermediate coordinates; and The second reference point moving unit obtains the calculated coordinates based on the second intermediate coordinates.

2. The electronic device according to claim 1, wherein, The first modeling data has a first sensing value for a first input value continuously input along the first direction from the midpoint of the first sensing unit to the midpoint of the second sensing unit.

3. The electronic device according to claim 2, wherein, The second modeling data has a second sensing value for a second input value continuously input along the second direction from the midpoint of the first sensing unit to the midpoint of the third sensing unit.

4. The electronic device according to claim 3, wherein, The first modeling data is stored in the memory in the form of a first function that defines the first input value as the x-axis and the first sensed value as the y-axis, and the second modeling data is stored in the memory in the form of a second function that defines the second input value as the x-axis and the second sensed value as the y-axis.

5. The electronic device according to claim 4, wherein, The first function and the second function have the same shape.

6. The electronic device according to claim 4, wherein, The first intermediate coordinate system includes a first x-coordinate and a first y-coordinate, and the second intermediate coordinate system includes a second x-coordinate and a second y-coordinate. The coordinate correction unit substitutes the first x-coordinate into the first inverse function of the first function to obtain the second x-coordinate, and substitutes the first y-coordinate into the second inverse function of the second function to obtain the second y-coordinate.

7. The electronic device according to claim 3, wherein, Each of the first modeling data and the second modeling data is stored in the memory in the form of a lookup table.

8. The electronic device according to claim 1, wherein, The memory further includes: a reference coordinate, which is a position in the coordinate system that serves as a reference for the sensing coordinate.

9. The electronic device according to claim 8, wherein, The first intermediate coordinate is the remainder of the value obtained by subtracting the reference coordinate from the sensed coordinate and then dividing it by the width.

10. The electronic device according to claim 8, wherein, The memory also includes an integer value obtained by dividing the sensed coordinates by the width.

11. The electronic device according to claim 10, wherein, The calculated coordinates are obtained by adding the second intermediate coordinates, the integer value multiplied by the width, and all the reference coordinates.

12. The electronic device according to claim 1, wherein, Each of the plurality of sensing units includes: an electrode extending along the first direction; and a cross electrode extending along the second direction and intersecting the electrode insulated from it.

13. The electronic device according to claim 12, wherein, The input sensor senses the input generated by touch by means of the change in the mutual capacitance formed between the electrode and the cross electrode, and senses the input generated by the input device by means of the change in the capacitance of each of the electrode and the cross electrode.

14. A coordinate correction method, comprising the following steps: The sensing coordinates are obtained from an input sensor that has multiple sensing units. The sensing coordinates are converted into first intermediate coordinates based on a coordinate system comprising coordinate units defined from the width of each of the plurality of sensing units; The second intermediate coordinates are obtained by correcting the first intermediate coordinates based on the first modeling data and the second modeling data; as well as The calculated coordinates are obtained based on the second intermediate coordinates. The coordinate correction method further includes: The first modeling data is acquired from a first sensing unit among the plurality of sensing units and a second sensing unit adjacent to the first sensing unit in a first direction; and The second modeling data is obtained from the first sensing unit and a third sensing unit adjacent to the first sensing unit in a second direction intersecting the first direction.

15. The coordinate correction method according to claim 14, wherein, The steps for obtaining the first modeling data include the following steps: A first function is obtained, the first function having a first sense value for a first input value continuously input along the first direction from the midpoint of the first sensing unit to the midpoint of the second sensing unit, and the first input value is defined as the x-axis and the first sense value is defined as the y-axis.

16. The coordinate correction method according to claim 15, wherein, The steps to obtain the second modeling data include the following steps: A second function is obtained, the second function having a second sense value for a second input value continuously input along the second direction from the midpoint of the first sensing unit to the midpoint of the third sensing unit, and the second input value is defined as the x-axis and the second sense value is defined as the y-axis.

17. The coordinate correction method according to claim 16, wherein, The first intermediate coordinate system includes a first x-coordinate and a first y-coordinate, and the second intermediate coordinate system includes a second x-coordinate and a second y-coordinate. In the step of obtaining the second intermediate coordinate, the first x-coordinate is substituted into the first inverse function of the first function to obtain the second x-coordinate, and the first y-coordinate is substituted into the second inverse function of the second function to obtain the second y-coordinate.

18. The coordinate correction method according to claim 16, wherein, The first function and the second function have the same shape.

19. The coordinate correction method according to claim 14, wherein, The step of converting the sensed coordinates into the first intermediate coordinates includes the following steps: Calculate the remainder of the value obtained by subtracting the reference coordinate from the sensing coordinate and dividing it by the width, where the reference coordinate is the position in the coordinate system that serves as the reference for the sensing coordinate.

20. The coordinate correction method according to claim 19, wherein, The steps to obtain the calculated coordinates include the following: The second intermediate coordinate, the integer value obtained by dividing the sensing coordinate by the width and multiplying it by the width, and the reference coordinate are all added together.

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