Electronic device
By designing the electrodes and connecting lines of the sensor layer in multimedia electronic devices and adopting specific signal phase and resistance optimization, the user's demand for pen input is solved and the flexibility and input accuracy of the device are improved.
Patent Information
- Application Number
- CN202422614337.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Priority Date
- 2023-11-01
- Filing Date
- 2024-10-29
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-10-29
AI Technical Summary
In existing multimedia electronic devices, users' demand for detailed touch input using a pen is not fully met, especially when a digitizer is omitted, the thickness and weight of the device increase and the flexibility is limited.
A sensor layer design is adopted, including electrodes and connecting lines in the main area and peripheral area. The electrodes extend in different directions, and the connecting lines are optimized through specific signal phase and resistance design to achieve efficient sensing of pen input.
This achieves efficient sensing of pen input without increasing the thickness and weight of the device, enhancing the flexibility and input accuracy of the device.
Smart Images

Figure CN223486482U_ABST
Abstract
Description
[0001] CROSS-REFERENCE TO RELATED APPLICATIONS
[0002] This application claims priority and benefit to Korean Patent Application No. 10-2023-0149456, filed on November 1, 2023, the entire contents of which are incorporated herein by reference. Technical Field
[0003] This disclosure relates herein to electronic devices including input sensors. Background Technology
[0004] Multimedia electronic devices such as televisions, mobile phones, tablet computers, laptop computers, navigation systems, and game consoles include display devices for displaying images. In addition to other input methods such as buttons, keyboards, and mice, electronic devices may also include a sensor layer (or input sensor) capable of touch-based input methods, allowing users to easily, intuitively, and conveniently input information or commands. The sensor layer can sense the user's touch or pressure.
[0005] At the same time, users who are accustomed to inputting information by using writing tools have an increasing need for pen use, or for detailed touch input using corresponding applications (e.g., applications for sketching or drawing). Summary of the Invention
[0006] This disclosure provides an electronic device capable of sensing input via different types of input devices.
[0007] One or more embodiments of this disclosure provide an electronic device including a sensor layer comprising a main region and a peripheral region and including electrodes in the main region and connecting lines in the peripheral region. The electrodes include a first sensing electrode extending in a first direction, a second sensing electrode extending in a second direction intersecting the first direction, a first electrode extending in the first direction and overlapping the first sensing electrode, and a second electrode extending in the second direction and overlapping the second sensing electrode. Each of the first electrodes includes a first end and a second end. The connecting lines include a first connecting line connecting a second end of each of at least two of the first electrodes to a first pad and a second connecting line connecting a first end of each of the at least two first electrodes to a second pad. The second connecting line includes a first portion having a first linewidth and a second portion having a second linewidth, wherein the first linewidth is greater than the second linewidth. A first signal is applied to the first connecting line when a second signal is applied to the second connecting line at a first time. The first signal has a first phase, and the second signal has a second phase opposite to the first phase.
[0008] The second connection line may include a first line portion connected to a first end of each of at least two first electrodes and facing a first pad in a first direction, a second line portion extending from the first line portion, and a third line portion extending from the first line portion, wherein the second line portion and the third line portion face each other in a second direction, and wherein at least one of the second line portion and the third line portion includes a first portion and a second portion.
[0009] The resistance of the second wire portion can be less than the resistance of one of the first electrodes.
[0010] The resistance of the second wire portion can be substantially the same as the resistance of at least the two first electrodes.
[0011] The connecting lines may further include: a third connecting line in the peripheral region and connected to the first sensing electrode; a first-first connecting line connected to one of the second sensing electrodes; a first-second connecting line connected to the other of the second sensing electrodes; a second-first connecting line connected to a first set of electrodes of the second electrode, wherein one of the first set of electrodes overlaps with one of the second sensing electrodes; and a second-second connecting line connected to a second set of electrodes of the second electrode, wherein one of the second set of electrodes overlaps with the other of the second sensing electrodes.
[0012] The first-second connecting line can be set in the second direction between the second-first connecting line and the main area, wherein the second-second connecting line is set in the second direction between the first-first connecting line and the main area.
[0013] The sensor layer may further include a first insulating layer and a second insulating layer that overlap with the main region and the peripheral region, wherein each of the first sensing electrodes includes a first separating electrode and a second separating electrode that are spaced apart from each other over the first insulating layer and the second insulating layer and in a second direction, and wherein each of the second sensing electrodes includes a sensing pattern over the first insulating layer and the second insulating layer and a bridging pattern between the first insulating layer and the second insulating layer and connected to the sensing pattern.
[0014] Each of the first electrodes may include: a first pattern extending in a first direction between the first and second insulating layers and overlapping the first and second separator electrodes; and a second pattern extending in the first direction over the first and second insulating layers and between the first and second separator electrodes in a second direction, wherein the first and second patterns are connected to each other through contact holes through the second insulating layer.
[0015] Each of the second electrodes may include: a first pattern between a first insulating layer and a second insulating layer, and spaced apart from each other in a second direction; a second pattern between the first insulating layer and the second insulating layer, and between two adjacent first patterns of the first pattern in a second direction; and a third pattern above the first insulating layer and the second insulating layer, and spaced apart from each other in a second direction, wherein the first patterns overlap with corresponding sensing patterns in the sensing patterns, and wherein the third patterns are respectively connected to the first pattern and connected to the second pattern.
[0016] The second connecting wire may include a first layer portion between the first insulating layer and the second insulating layer, and a second layer portion above the first insulating layer and the second insulating layer and connected to the first layer portion.
[0017] The first layer can have a larger line width than the second layer.
[0018] The first layer can have a larger line width than the first connecting line.
[0019] The connecting lines may further include: a third connecting line, in the peripheral region, respectively connected to the first sensing electrode and above the first insulating layer and the second insulating layer; a first-first connecting line, connected to one of the second sensing electrodes and above the first insulating layer and the second insulating layer; a first-second connecting line, connected to the other of the second sensing electrodes and above the first insulating layer and the second insulating layer; a second-first connecting line, above the first insulating layer and the second insulating layer, connected to a first group of electrodes in the second electrode, and one of the first group of electrodes overlaps with one of the second sensing electrodes; and a second-second connecting line, above the first insulating layer and the second insulating layer, connected to a second group of electrodes in the second electrode, and one of the second group of electrodes overlaps with the other of the second sensing electrodes.
[0020] In one or more embodiments of this disclosure, an electronic device includes a sensor layer comprising a main region and a peripheral region and including electrodes in the main region and connecting lines in the peripheral region. The electrodes include a first sensing electrode extending in a first direction, a second sensing electrode extending in a second direction intersecting the first direction, a first electrode extending in the first direction and overlapping the first sensing electrode, and a second electrode extending in the second direction and overlapping the second sensing electrode, each of the first electrodes including a first end and a second end. The connecting lines include a first connecting line connecting a second end of each of at least two of the first electrodes to a first pad and a second connecting line connecting a first end of each of the at least two first electrodes to a second pad. The second connecting lines include a first line portion facing the at least two first electrodes in the second direction, wherein the resistance of the first line portion of the second connecting line is less than the resistance of one of the at least two first electrodes, and wherein a first signal is applied to the first connecting line when a second signal different from a first signal is applied to the second connecting line at a first time.
[0021] The first signal may include a sinusoidal signal or a square wave signal with a phase opposite to that of the second signal.
[0022] At least two of the first electrodes can be defined as a first group of electrodes, wherein the first electrodes further include a second group of electrodes disposed between the first line portion and the first group of electrodes.
[0023] The first electrode may further include a third set of electrodes, wherein the first set of electrodes is disposed between the second set of electrodes and the third set of electrodes, and wherein at a first time, the second set of electrodes and the third set of electrodes do not receive the first signal and the second signal.
[0024] The first line portion may include: a first layer portion; and a second layer portion, which overlaps with the first layer portion, is located at a different layer than the first layer portion, and has a width smaller than the width of the first layer portion.
[0025] In one or more embodiments of this disclosure, the electronic device includes a sensor layer comprising a main region and a peripheral region, and the sensor layer includes electrodes in the main region and lines in the peripheral region. The electrodes include a first sensing electrode extending in a first direction, a second sensing electrode extending in a second direction intersecting the first direction, first electrodes extending in the first direction and overlapping the first sensing electrodes respectively, and second electrodes extending in the second direction and overlapping the second sensing electrodes respectively. Each of the first electrodes includes a first end and a second end. The lines include a first-first line connected to one of the second sensing electrodes, a first-second line connected to the other of the second sensing electrodes, and a second line connected to the second sensing electrode. The first set of electrodes in the electrode has a second-first line (and one of the first set of electrodes overlaps with one of the second sensing electrodes), a second-second line connected to the second set of electrodes in the second electrode (and one of the second set of electrodes overlaps with another of the second sensing electrodes), a third line connected to the first end of each of at least two of the first electrodes in the first electrode, and a fourth line connected to the second end of each of at least two of the first electrodes, wherein the first-second line is disposed in a second direction between the second-first line and the main region, the second-second line is disposed in a second direction between the first-first line and the main region, and the first signal is applied to the third line when a second signal different from the first signal is applied to the fourth line at a first time.
[0026] The line may also include a fifth line in the peripheral region and connected to the first sensing electrode.
[0027] The third wire may include: a first wire portion connected to a first end of each of at least two first electrodes; a second wire portion extending from the first wire portion; and a third wire portion extending from the first wire portion, wherein the second wire portion and the third wire portion face each other in a second direction, wherein the second-first wire is disposed in the second direction between the second wire portion and the first-second wire, and wherein the first-first wire is disposed in the second direction between the third wire portion and the second-second wire.
[0028] The third line may include at least two parts with different line widths. Attached Figure Description
[0029] The accompanying drawings are included to provide a further understanding of this disclosure and are incorporated in and constitute a part of this specification. The drawings illustrate embodiments of the disclosure and, together with the description, serve to explain the principles of the disclosure. In the drawings:
[0030] Figure 1A This is a perspective view of an electronic device according to one or more embodiments of the present disclosure;
[0031] Figure 1BThis is a rear perspective view of an electronic device according to one or more embodiments of the present disclosure;
[0032] Figure 2 This is a perspective view of an electronic device according to one or more embodiments of the present disclosure;
[0033] Figure 3 This is a schematic cross-sectional view of a display panel according to one or more embodiments of the present disclosure;
[0034] Figure 4 The operation of an electronic device according to one or more embodiments of the present disclosure is described;
[0035] Figure 5 This is a cross-sectional view of a display panel according to one or more embodiments of the present disclosure;
[0036] Figure 6 This is a plan view of a sensor layer according to one or more embodiments of the present disclosure;
[0037] Figure 7 This is an enlarged plan view of a sensing unit according to one or more embodiments of the present disclosure;
[0038] Figure 8A This is a plan view showing the first conductive layer of a sensing unit according to one or more embodiments of the present disclosure;
[0039] Figure 8B This is a plan view showing the second conductive layer of a sensing unit according to one or more embodiments of the present disclosure;
[0040] Figure 9 It is along one or more embodiments of this disclosure Figure 8A and Figure 8B Each of the lines shown in the diagram is a cross-sectional view of the sensor layer taken by line I-I'.
[0041] Figure 10A yes Figure 8A An enlarged plan view of region AA' shown in the diagram;
[0042] Figure 10B yes Figure 8B An enlarged plan view of region BB' shown in the diagram;
[0043] Figure 11 Operation of a sensor driver according to one or more embodiments of the present disclosure is illustrated;
[0044] Figure 12 Operation of a sensor driver according to one or more embodiments of the present disclosure is illustrated;
[0045] Figure 13A A first mode according to one or more embodiments of the present disclosure is described;
[0046] Figure 13B A first mode according to one or more embodiments of the present disclosure is described;
[0047] Figure 14 A first mode according to one or more embodiments of the present disclosure is described;
[0048] Figure 15 A second mode according to one or more embodiments of this disclosure is described;
[0049] Figure 16 A graph showing the waveforms of a first signal and a second signal according to one or more embodiments of the present disclosure is presented;
[0050] Figure 17A This is a table showing the signals provided to the sensor layer according to one or more embodiments of this disclosure;
[0051] Figure 17B This is a table showing the signals provided to the sensor layer according to one or more embodiments of this disclosure;
[0052] Figures 17C to 17E A search-charging drive mode of a second mode according to one or more embodiments of this disclosure is described;
[0053] Figures 17F to 17H A search-charging drive mode of a second mode according to one or more embodiments of this disclosure is described;
[0054] Figure 18 A second mode according to one or more embodiments of this disclosure is described;
[0055] Figure 19A This is a table showing the signals provided to the sensor layer according to one or more embodiments of this disclosure;
[0056] Figure 19B This is a table showing the signals provided to the sensor layer according to one or more embodiments of this disclosure;
[0057] Figure 20A A second mode according to one or more embodiments of this disclosure is described;
[0058] Figure 20B A second mode based on a sensing unit according to one or more embodiments of this disclosure is described;
[0059] Figure 21AThis is an equivalent circuit diagram illustrating the relationship between a channel and a pen according to one or more comparative embodiments of the present disclosure;
[0060] Figure 21B This is an equivalent circuit diagram illustrating the relationship between a channel and a pen according to one or more comparative embodiments of the present disclosure;
[0061] Figure 22A This is an equivalent circuit diagram illustrating the relationship between a channel and a pen according to one or more embodiments of the present disclosure;
[0062] Figure 22B This is an equivalent circuit diagram illustrating the relationship between a channel and a pen according to one or more embodiments of the present disclosure;
[0063] Figure 23 It is a graph showing the magnitude of the current based on the position of the pen relative to a channel;
[0064] Figure 24 This is a plan view of a sensor layer according to one or more embodiments of the present disclosure;
[0065] Figure 25A This is a plan view of the first conductive layer of a sensor layer according to one or more embodiments of the present disclosure; and
[0066] Figure 25B This is a plan view of the second conductive layer of a sensor layer according to one or more embodiments of the present disclosure. Detailed Implementation
[0067] Some aspects of this disclosure and methods of implementing it can be more readily understood by referring to the detailed description of the embodiments and the accompanying drawings. The described embodiments are provided as examples so that this disclosure will be thorough and complete, and will fully convey aspects of this disclosure to those skilled in the art. Therefore, redundant processes, elements, and techniques that are irrelevant or unrelated to the description of the embodiments or unnecessary for a person skilled in the art to fully understand aspects of this disclosure may be omitted. Unless otherwise stated, the same reference numerals, characters, or combinations thereof denote the same elements throughout the drawings and written description, and therefore, their repeated description may be omitted.
[0068] The described embodiments can have various modifications and can be implemented in different forms, and should not be construed as being limited to the embodiments shown herein. The terms "may," "can," or "may not" used in describing embodiments correspond to one or more embodiments of this disclosure. This disclosure covers all modifications, equivalents, and substitutions within the concept and scope of this disclosure. Furthermore, each feature of the various embodiments of this disclosure can be combined partially or entirely with each other, and various interlocks and drives are technically possible. Each embodiment can be implemented independently of each other or can be implemented together in association.
[0069] In the accompanying drawings, the relative dimensions of elements, layers, and regions may be exaggerated for clarity and / or descriptive purposes. Additionally, crosshairs and / or shading are typically used in the drawings to clarify the boundaries between adjacent elements. Therefore, unless otherwise stated, the presence or absence of crosshairs or shading does not convey or indicate any preference or requirement for particular materials, material properties, dimensions, scale, commonalities between the elements shown, and / or any other characteristics, properties, or characteristics of the elements.
[0070] Various embodiments are described herein with reference to cross-sectional views that serve as schematic diagrams of implementations and / or intermediate structures. Thus, deviations from the illustrated shapes due to, for example, manufacturing techniques and / or tolerances will be expected. Furthermore, the specific structural or functional descriptions disclosed herein are merely illustrative for the purpose of describing embodiments according to the concept of this disclosure. Therefore, the embodiments disclosed herein should not be construed as limited to the illustrated shapes of elements, layers, or regions, but will include deviations in shape due to, for example, manufacturing processes.
[0071] For example, an implantation region shown as rectangular will typically have rounded or curved features at its edges and / or a gradient of implantation concentration, rather than a binary variation from the implantation region to the non-implantation region. Similarly, the implantation region formed by implantation may result in some implantation in the region between the implantation region and the surface through which the implantation occurs.
[0072] For ease of explanation, spatial relative terms such as “below,” “under,” “lower,” “lower side,” “below,” “above,” “upper,” and “upper side” may be used herein to describe the relationship between one element or feature and another element(s) as shown in the figures. It will be understood that, in addition to the orientations depicted in the figures, the spatial relative terms are intended to encompass different orientations of the device in use or operation. For example, if the device in the figures is flipped, the element described as “below,” “under,” or “below” other elements or features will be oriented “above” other elements or features. Thus, the exemplary terms “below” and “below” can encompass both above and below orientations. The device may be oriented in other ways (e.g., rotated 90 degrees or in other orientations), and the spatial relative descriptive terms used herein should be interpreted accordingly. Similarly, when a first part is described as being arranged “on” a second part, this indicates that the first part is arranged on the upper or lower side of the second part, and not limited to its upper side based on the direction of gravity.
[0073] Furthermore, the phrase "in a plan view" means when viewing a portion of the object from above, and the phrase "in a schematic sectional view" means when viewing a schematic section obtained by vertically cutting a portion of the object from the side. The terms "overlapping" or "overlapping" mean that the first object may be above or below the second object or on one side of the second object, and conversely, the second object may be above or below the first object or on one side of the first object. Additionally, the term "overlapping" can include stacking, facing or oriented, extending across, covering or partially covering, or any other suitable term as would be understood and appreciated by one of ordinary skill in the art. The expression "non-overlapping" can include meanings such as "separated from," "set beside," or "offset from," and any other suitable equivalent as would be understood and appreciated by one of ordinary skill in the art. The terms "facing" and "oriented" can mean that the first object may be directly opposite or indirectly opposite the second object. In the case where a third object is interposed between the first and second objects, the first and second objects can be understood as indirectly opposite each other, but still facing each other.
[0074] It will be understood that when a component, layer, region, or part is referred to as being "formed on," "on," "connected to," or "(operably or communicatively) coupled to" another component, layer, region, or part, it can be directly formed on, or directly on, connected to, or directly coupled to another component, layer, region, or part, or indirectly formed on, or indirectly on, or indirectly connected to, or indirectly coupled to another component, layer, region, or part, such that one or more intervening components, layers, regions, or parts may exist. Furthermore, this can generally mean direct or indirect connection or coupling, and integral or non-integral connection or coupling. For example, when a component, layer, region, or part is referred to as "electrically connected" or "electrically coupled" to another component, layer, region, or part, it may be directly electrically connected to or directly coupled to the other component, layer, region, or part, or there may be one or more intervening components, layers, regions, or parts. One or more intervening parts may include switches, resistors, capacitors, etc. In the described embodiments, unless explicitly described as a direct connection, the term "connection" indicates an electrical connection, and "directly connected / directly coupled" or "directly on..." means that one part is directly connected to or coupled to another part or directly on another part without intermediate parts.
[0075] Furthermore, in this specification, when a portion of a layer, film, region, plate, etc., is formed on another portion, the forming direction is not limited to the upward direction, but includes forming the portion on a side surface or in the downward direction. Conversely, when a portion of a layer, film, region, plate, etc., is formed "below" another portion, this includes not only the case where the portion is "directly" "below" the other portion, but also the case where there is another portion between the portion and the other portion. Similarly, other expressions describing the relationship between components, such as "between" and "directly between," or "adjacent to" and "directly adjacent to," can be interpreted similarly. It will be understood that when an element or layer is referred to as being "between" two elements or layers, it can be the only element or layer between the two elements or layers, or there can be one or more intervening elements or layers.
[0076] For the purposes of this disclosure, when expressions such as “at least one of…”, “any one of…”, or “one or more of…” follow an element of a list, they modify the entire list rather than individual elements within it. For example, “at least one of X, Y, and Z” and “at least one selected from the group consisting of X, Y, and Z” can be interpreted as only X, only Y, only Z, or any combination of two or more of X, Y, and Z (e.g., XYZ, XYY, YZ, and XZ, or any variation thereof). Similarly, the expression “at least one of A and B” can include A, B, or A and B. As used herein, “or” generally means “and / or”, and the term “and / or” includes any and all combinations of one or more of the related listed items. For example, the expression “A and / or B” can include A, B, or A and B.
[0077] It will be understood that while the terms “first,” “second,” “third,” etc., may be used herein to describe various elements, components, regions, layers, and / or sections, these elements, components, regions, layers, and / or sections should not be limited by these terms. These terms do not correspond to a specific order, position, or priority, but are used only to distinguish one element, component, part, region, area, layer, section, or portion from another element, component, part, region, area, layer, section, or portion. Therefore, without departing from the spirit and scope of this disclosure, the first element, first component, first region, first layer, or first section described below may be referred to as a second element, second component, second region, second layer, or second section. Describing an element as a “first” element does not require or imply the presence of a second element or other elements. The terms “first,” “second,” etc., may also be used herein to distinguish elements of different categories or groups. For brevity, the terms “first,” “second,” etc., may respectively represent “first category (or first group),” “second category (or second group),” etc.
[0078] In this example, the x-axis, y-axis, and / or z-axis are not limited to the three axes of a Cartesian coordinate system and can be interpreted in a broader sense. For example, the x-axis, y-axis, and z-axis can be perpendicular to each other, or they can represent different directions that are not perpendicular to each other. The same description applies to the first direction, the second direction, and / or the third direction.
[0079] The terminology used herein is for descriptive purposes only and is not intended to limit this disclosure. As used herein, the singular forms “a” and “an” are intended to include the plural forms as well, and the plural forms are intended to include the singular forms as well, unless the context clearly indicates otherwise. It will also be understood that, when used in this specification, the terms “comprises,” “comprising,” “have,” “having,” “includes,” and “including” specify the presence of the described features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or combinations thereof.
[0080] When one or more implementations can be carried out differently, a process sequence different from the described sequence can be performed. For example, two consecutively described processes can be performed substantially simultaneously, or in the reverse order of their description.
[0081] As used herein, the terms “substantially,” “about,” “approximately,” and similar terms are used as approximate terms rather than as terms of degree and are intended to account for inherent deviations in the measured or calculated values that would be recognized by those skilled in the art. For example, “substantially” can include a range of + / - 5% of the corresponding value. Given the measurements discussed and the errors associated with the measurement of a particular quantity (i.e., limitations of the measurement system), as used herein, “about” or “approximately” includes the stated value and means within an acceptable deviation range of the particular value as determined by those skilled in the art. For example, “about” can mean within one or more standard deviations, or within ±30%, ±20%, ±10%, ±5% of the stated value. Additionally, the word “may” as used in describing embodiments of this disclosure means “one or more embodiments of this disclosure.”
[0082] The term "part" or "unit" refers to a software or hardware component that performs a corresponding function. Hardware components may include, for example, field-programmable gate arrays (FPGAs) or application-specific integrated circuits (ASICs). Software components may refer to executable code in addressable storage media and / or data used by the executable code. Therefore, software components can be, for example, object-oriented software components, class components, and task components, and may include processes, functions, attributes, programs, subroutines, program code segments, drivers, firmware, microcode, circuits, data, databases, data structures, tables, arrays, or variables.
[0083] Unless otherwise specified, all terms used herein (including technical and scientific terms) shall have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure pertains. It will also be understood that terms such as those defined in common dictionaries shall be interpreted as having the same meaning as they have in the relevant field and / or the context of this specification, and shall not be interpreted in an idealized or overly formal sense unless expressly defined herein.
[0084] In the following description, embodiments of the present disclosure will be described with reference to the accompanying drawings.
[0085] Figure 1A This is a perspective view of an electronic device 1000 according to one or more embodiments of the present disclosure. Figure 1B This is a rear perspective view of an electronic device 1000 according to one or more embodiments of the present disclosure. Figure 2 This is a perspective view of an electronic device 1000-1 according to one or more embodiments of the present disclosure.
[0086] refer to Figure 1A and Figure 1B The electronic device 1000 can be a display device activated by an electrical signal. For example, the electronic device 1000 can display an image and sense externally applied input. The external input can be user input. External input can include various types of input, such as input made by the user's body parts or input made by an input device.
[0087] Electronic device 1000 may include a first display panel DP1 and a second display panel DP2. The first display panel DP1 and the second display panel DP2 may be separate panels. The first display panel DP1 may be referred to as the main display panel, and the second display panel DP2 may be referred to as the auxiliary display panel or the external display panel. Each of the first display panel DP1 and the second display panel DP2 may be connected to a housing HUS.
[0088] The area of the second display panel DP2 can be smaller than the area of the first display panel DP1. If the electronic device 1000 is unfolded, the first display panel DP1 can have a plane that is substantially parallel to the first direction DR1 and the second direction DR2. The thickness direction of the electronic device 1000 can be parallel to a third direction DR3 that intersects the first direction DR1 and the second direction DR2. Therefore, the front surface (or upper surface) and rear surface (or lower surface) of the components constituting the electronic device 1000 can be defined based on the third direction DR3.
[0089] The first display panel DP1 may include a foldable and unfoldable foldable region FA and a plurality of non-foldable regions NFA1 and NFA2 spaced apart from each other, with the foldable region FA interposed between the plurality of non-foldable regions NFA1 and NFA2. The second display panel DP2 may overlap with any one of the plurality of non-foldable regions NFA1 and NFA2. For example, the second display panel DP2 may overlap with the first non-foldable region NFA1.
[0090] The display orientation of the first image IM1a displayed on a portion of the first display panel DP1 (e.g., in the first non-folded region NFA1) and the display orientation of the second image IM2a displayed on the second display panel DP2 can be opposite to each other. For example, the first image IM1a can be displayed on a third direction DR3, and the second image IM2a can be displayed on a fourth direction DR4 opposite to the third direction DR3 (see...). Figure 1B )superior.
[0091] In one or more embodiments of this disclosure, the folding region FA may be bent based on a folding axis extending in a direction parallel to the long side of the electronic device 1000 (e.g., in a direction parallel to the second direction DR2). In the folded state of the electronic device 1000, the folding region FA has a curvature (e.g., a predetermined curvature) and a radius of curvature (e.g., a predetermined radius of curvature). The first non-folding region NFA1 and the second non-folding region NFA2 face each other or back to back, and the electronic device 1000 may fold inwards such that the first display panel DP1 is not exposed to the outside. That is, the first display panel DP1 may fold inwards.
[0092] In one or more embodiments of this disclosure, the first display panel DP1 may be folded outward to expose the exterior. In one or more embodiments of this disclosure, the electronic device 1000 may selectively operate between folding inward from an unfolded state and folding outward from an unfolded state, but this disclosure is not limited thereto.
[0093] Figure 1A A folding region FA is shown defined in electronic device 1000, but this disclosure is not limited thereto. For example, multiple folding axes and multiple folding regions corresponding to the multiple folding axes may be defined in electronic device 1000-1, and electronic device 1000 may fold inward or outward from an unfolded state in each of the multiple folding regions.
[0094] According to one or more embodiments of this disclosure, at least one of the first display panel DP1 and the second display panel DP2 can sense input from the pen PN even without a digitizer. Therefore, by omitting the digitizer for sensing the pen PN, the thickness and weight of the electronic device 1000 can be reduced, and the flexibility of the electronic device 1000 can be increased, which might have been undesirably affected by the addition of the digitizer. Therefore, not only the first display panel DP1 but also the second display panel DP2 can be designed to sense the pen PN.
[0095] refer to Figure 2 The electronic device 1000-1 may be a mobile phone or a tablet, but is not particularly limited thereto. The electronic device 1000-1 may include a display panel (DP).
[0096] In one or more embodiments of this disclosure, the display panel DP can sense external input. According to one or more embodiments of this disclosure, although a digitizer is not included / omitted, the display panel DP can sense input from the pen PN. Therefore, because the digitizer for sensing the pen PN is omitted, the thickness and weight of the electronic device 1000 or 1000-1 do not need to increase due to the addition of the digitizer.
[0097] Figure 1A and Figure 1B A foldable electronic device 1000 is shown, and Figure 2 A flat-panel electronic device 1000-1 is shown, but this disclosure is not limited thereto. For example, the description given below can be applied to various electronic devices such as rollable electronic devices, sliding electronic devices, and stretchable electronic devices.
[0098] Figure 3 This is a schematic cross-sectional view of a display panel DP according to one or more embodiments of the present disclosure. The display panel DP may be the first display panel DP1 or the second display panel DP2 of FIG1.
[0099] refer to Figure 3 The display panel DP may include a display layer 100 and a sensor layer 200. In one or more embodiments of this disclosure, the display layer 100 may be defined as a display panel, and the sensor layer 200 may be defined as an input sensor.
[0100] Display layer 100 can be configured to substantially generate an image. Display layer 100 can be a light-emitting display layer. For example, display layer 100 may include an organic light-emitting display layer, an inorganic light-emitting display layer, an organic-inorganic light-emitting display layer, a quantum dot display layer, a micron LED display layer, or a nano LED display layer. Display layer 100 may include a base layer 110, a circuit layer 120, a light-emitting element layer 130, and an encapsulation layer 140.
[0101] The base layer 110 may be a component that provides a base surface for positioning the circuit layer 120 thereon. The base layer 110 may have a multilayer structure or a single-layer structure. The base layer 110 may be a glass substrate, a metal substrate, a silicon substrate, or a polymer substrate, but is not particularly limited thereto.
[0102] Circuit layer 120 may be located on base layer 110 (as used herein, "located on" can mean "above"). Circuit layer 120 may include insulating layers, semiconductor patterns, conductive patterns, signal lines, etc. Insulating layers, semiconductor layers, and conductive layers can be formed on base layer 110 by coating, deposition, etc., and circuit layer 120 can be formed by selectively patterning insulating layers, semiconductor layers, and conductive layers through multiple photolithography processes. In one or more embodiments of this disclosure, circuit layer 120 may be defined as a driving element layer.
[0103] The light-emitting element layer 130 may be located on the circuit layer 120. The light-emitting element layer 130 may include light-emitting elements. For example, the light-emitting element layer 130 may include organic light-emitting materials, inorganic light-emitting materials, organic-inorganic light-emitting materials, quantum dots, quantum rods, micron LEDs, or nano LEDs.
[0104] The encapsulation layer 140 may be located on the light-emitting element layer 130. The encapsulation layer 140 can protect the light-emitting element layer 130 from moisture, oxygen and foreign matter such as dust particles.
[0105] Sensor layer 200 may be located on display layer 100. Sensor layer 200 can sense external input. Sensor layer 200 may be an integrated sensor formed continuously during the manufacturing process of display layer 100, or sensor layer 200 may be an external sensor attached to display layer 100. Sensor layer 200 may be referred to as a sensor for sensing input coordinates, an input sensing layer, an input sensing panel, or electronics.
[0106] In one or more embodiments of this disclosure, a portion of the sensor layer 200 may be located on the display layer 100, and a portion of the sensor layer 200 may be located below the display layer 100. For example, Figure 5 The first conductive layer 202 and the sensing insulating layer (also referred to as the second insulating layer) 203 shown may be located below the display layer 100, rather than above it. In this case, the second conductive layer 204 and the cover insulating layer 205 may be located on the base insulating layer (also referred to as the first insulating layer) 201. The first conductive layer 202 may be located below the base layer 110, and the sensing insulating layer 203 may be located below the first conductive layer 202.
[0107] According to one or more embodiments of this disclosure, sensor layer 200 can sense not only input from a user's body parts, but also input from an input device that generates a magnetic field at a resonant frequency (e.g., a predetermined resonant frequency). In one or more embodiments of this disclosure, the input device that generates a magnetic field at a resonant frequency (e.g., a predetermined resonant frequency) may be referred to as a pen, input pen, magnetic pen, stylus, or electromagnetic resonant pen.
[0108] Figure 4 The operation of an electronic device 1000 according to one or more embodiments of the present disclosure is described.
[0109] refer to Figure 4 The electronic device 1000 may include a display layer 100, a sensor layer 200, a display driver 100C, a sensor driver 200C, a main driver 1000C, and a power supply circuit 1000P.
[0110] Sensor layer 200 can sense a first input 2000 or a second input 3000 applied from the outside. Each of the first input 2000 and the second input 3000 can be an input device capable of providing a capacitance change in sensor layer 200, or an input device capable of inducing a current in sensor layer 200. For example, the first input 2000 can be an input device capable of providing a charge. The second input 3000 can be an input made by a pen PN or an RFIC tag. For example, the pen PN can be a passive pen or an active pen.
[0111] In one or more embodiments of this disclosure, the pen PN can be a device that generates a magnetic field at a resonant frequency (e.g., a predetermined resonant frequency). The pen PN can be configured to transmit an output signal based on an electromagnetic resonance method. The pen PN can be referred to as an input pen, a magnetic pen, a stylus pen, or an electromagnetic resonance pen.
[0112] The PN can include an RLC resonant circuit, and the RLC resonant circuit can include an inductor L and a capacitor C. In one or more embodiments of this disclosure, the RLC resonant circuit can be a variable resonant circuit that changes the resonant frequency. In this case, the inductor L can be a variable inductor, and / or the capacitor C can be a variable capacitor, but this disclosure is not particularly limited thereto.
[0113] Inductor L generates current through a magnetic field formed in sensor layer 200. However, this disclosure is not particularly limited thereto. For example, if pen PN operates in an active mode, pen PN can generate current even if it does not receive a magnetic field from the outside. The generated current flows to capacitor C. Capacitor C is charged using the current input from inductor L and discharges the charging current to inductor L. In the following, inductor L may emit a magnetic field at a resonant frequency. Induced current may flow in sensor layer 200 due to the magnetic field emitted by pen PN, and the induced current may be transmitted to sensor driver 200C as a received signal (or sensing signal).
[0114] The main driver 1000C can control the overall operation of the electronic device 1000. For example, the main driver 1000C can control the operation of the display driver 100C and the sensor driver 200C. The main driver 1000C may include at least one microprocessor and may also include a graphics controller. The main driver 1000C may be referred to as an application processor, a central processing unit, or a main processor.
[0115] Display driver 100C can drive display layer 100. Display driver 100C can receive image data and control signals from main driver 1000C. Control signals can include various signals. For example, control signals can include input vertical synchronization signals, input horizontal synchronization signals, master clock signals, data enable signals, etc.
[0116] Sensor driver 200C can drive sensor layer 200. Sensor driver 200C can receive control signals from main driver 1000C. The control signals may include a clock signal of sensor driver 200C. In addition, the control signals may also include a mode determination signal that determines the driving mode of sensor driver 200C and sensor layer 200.
[0117] The sensor driver 200C can be implemented as an integrated circuit IC and can be electrically connected to the sensor layer 200. For example, the sensor driver 200C can be directly mounted on an area (e.g., a predetermined area) of the display panel DP, or it can be mounted on a separate printed circuit board via a chip-on-film (COF) method for electrical connection to the sensor layer 200.
[0118] The sensor driver 200C can selectively operate the sensor layer 200 in either a first mode or a second mode. For example, the first mode may be a mode for sensing touch input (e.g., first input 2000). The second mode may be a mode for sensing pen input (e.g., second input 3000). The first mode may be referred to as a touch sensing mode (e.g., pen standby mode), and the second mode may be referred to as a pen sensing mode.
[0119] The transition between the first mode and the second mode can be performed in various ways. For example, the sensor driver 200C and the sensor layer 200 can be time-division driven in the first mode and the second mode, and can sense the first input 2000 and the second input 3000. Alternatively, the transition between the first mode and the second mode can occur due to a user's selection or corresponding action, or either the first mode or the second mode can be activated or disabled, or switched to another mode by activation or deactivation of a corresponding application. Alternatively, when the sensor driver 200C and the sensor layer 200 operate alternately in the first mode and the second mode, if the first input 2000 is sensed, the first mode can be maintained, or if the second input 3000 is sensed, the second mode can be maintained.
[0120] The sensor driver 200C can calculate the input coordinate information based on the signal received from the sensor layer 200, and can provide a coordinate signal with the coordinate information to the main driver 1000C. The main driver 1000C performs an operation corresponding to the user input based on the coordinate signal. For example, the main driver 1000C can operate the display driver 100C to display a new application image on the display layer 100.
[0121] The power supply circuit 1000P may include a power management integrated circuit (PMIC). The power supply circuit 1000P may generate multiple driving voltages for driving the display layer 100, the sensor layer 200, the display driver 100C, and the sensor driver 200C. For example, the multiple driving voltages may include a gate high voltage, a gate low voltage, a first driving voltage (e.g., ELVSS voltage), a second driving voltage (e.g., ELVDD voltage), an initialization voltage, etc., but this disclosure is not limited to the above examples.
[0122] Figure 5 This is a cross-sectional view of a display panel DP according to one or more embodiments of the present disclosure. The display panel DP may be the first display panel DP1 or the second display panel DP2 of FIG1.
[0123] refer to Figure 5 At least one buffer layer BFL is formed on the upper surface of the base layer 110. The buffer layer BFL can improve the bonding strength between the base layer 110 and the semiconductor pattern. The display layer 100 may also include a barrier layer. The buffer layer BFL may include at least one of silicon oxide, silicon nitride, and silicon oxide nitride. For example, the buffer layer BFL may include a structure in which silicon oxide layers and silicon nitride layers are alternately stacked.
[0124] The semiconductor pattern can be located on the buffer layer BFL. The semiconductor pattern can include polycrystalline silicon. However, it is not limited to this; the semiconductor pattern can include amorphous silicon, low-temperature polycrystalline silicon, or oxide semiconductor.
[0125] Figure 5 Only some semiconductor patterns are shown, and other semiconductor patterns may be located in other regions. Semiconductor patterns can be arranged across pixels according to corresponding rules. Semiconductor patterns can have different electrical properties depending on whether they are doped. A semiconductor pattern may include a first region with high conductivity and a second region with low conductivity. The first region may be doped with N-type or P-type dopant. A P-type transistor may include a doped region doped with P-type dopant, and an N-type transistor may include a doped region doped with N-type dopant. The second region may be an undoped region, or it may be a region doped at a lower concentration than the first region.
[0126] The conductivity of the first region can be greater than that of the second region, and the first region can essentially be used as an electrode or signal line. The second region can substantially correspond to the active region AL (or channel) of the transistor 100PC. In other words, a portion of the semiconductor pattern can be the active region AL of the transistor 100PC, another portion can be the source region SC or drain region DR of the transistor 100PC, and yet another portion can be a connecting electrode or a connecting signal line SCL. The first region can include the source region SC, the drain region DR, and the connecting signal line SCL, and the second region can include the active region AL.
[0127] Each pixel can have an equivalent circuit including seven transistors, a capacitor, and a light-emitting element, and the equivalent circuit diagram of a pixel can be modified in various forms. Figure 5 The image shows a transistor 100PC and a light-emitting element 100PE included in a pixel.
[0128] The source region SC, active region AL, and drain region DR of transistor 100PC can be formed by a semiconductor pattern. In cross-section, the source region SC and drain region DR can extend from the active region AL in opposite directions to each other. Figure 5 A portion of the connection signal line SCL, formed by a semiconductor pattern, is shown. In one or more embodiments, the connection signal line SCL may be connected in a plane to the drain region DR of the transistor 100PC.
[0129] The first insulating layer 10 may be located on the buffer layer BFL. The first insulating layer 10 may overlap with multiple pixels in a common manner and may cover a semiconductor pattern. The first insulating layer 10 may be an inorganic layer and / or an organic layer, and may have a single-layer structure or a multi-layer structure. The first insulating layer 10 may include at least one of aluminum oxide, titanium oxide, silicon oxide, silicon nitride, silicon nitride, zirconium oxide, and hafnium oxide. The first insulating layer 10 may be a single layer of silicon oxide. Not only the first insulating layer 10, but also the insulating layers of the circuit layer 120, which will be described later, may be inorganic layers and / or organic layers, and may have a single-layer structure or a multi-layer structure. Inorganic layers may include at least one of the materials mentioned above, but this disclosure is not limited thereto.
[0130] The gate GT of transistor 100PC is located on the first insulating layer 10. The gate GT may be part of a metal pattern. The gate GT overlaps with the active region AL. In processes of doping or reducing semiconductor patterns, the gate GT may be used as a mask.
[0131] The second insulating layer 20 may be located on the first insulating layer 10 and may cover the gate GT. The second insulating layer 20 may commonly overlap with the pixel. The second insulating layer 20 may be an inorganic layer and / or an organic layer, and may have a single-layer structure or a multilayer structure. The second insulating layer 20 may include at least one of silicon oxide, silicon nitride, and silicon oxide nitride. The second insulating layer 20 may have a multilayer structure including silicon oxide layers and silicon nitride layers.
[0132] The third insulating layer 30 may be located on the second insulating layer 20. The third insulating layer 30 may have a single-layer structure or a multi-layer structure. For example, the third insulating layer 30 may have a multi-layer structure including a silicon oxide layer and a silicon nitride layer.
[0133] The first connection electrode CNE1 can be located on the third insulating layer 30. The first connection electrode CNE1 can be connected to the connection signal line SCL through the contact hole CNT-1 passing through the first insulating layer 10, the second insulating layer 20 and the third insulating layer 30.
[0134] The fourth insulating layer 40 may be located 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 located on the fourth insulating layer 40. The fifth insulating layer 50 may be an organic layer.
[0135] The second connecting electrode CNE2 can be located on the fifth insulating layer 50. The second connecting electrode CNE2 can be connected to the first connecting electrode CNE1 through the contact hole CNT-2 passing through the fourth insulating layer 40 and the fifth insulating layer 50.
[0136] The sixth insulating layer 60 may be located on the fifth insulating layer 50 and may cover the second connecting electrode CNE2. The sixth insulating layer 60 may be an organic layer.
[0137] The light-emitting element layer 130 may be located on the circuit layer 120. The light-emitting element layer 130 may include a light-emitting element 100PE. For example, the light-emitting element layer 130 may include organic light-emitting materials, inorganic light-emitting materials, organic-inorganic light-emitting materials, quantum dots, quantum rods, micron LEDs, or nano LEDs. In the following, the light-emitting element 100PE will be described as an organic light-emitting element, but this disclosure is not particularly limited thereto.
[0138] 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 located on a sixth insulating layer 60. The first electrode AE may be connected to a second connecting electrode CNE2 through a contact hole CNT-3 passing through the sixth insulating layer 60.
[0139] The pixel defining film 70 may be located on the sixth insulating layer 60 and may cover a portion of the first electrode AE. An opening 70-OP is defined in the pixel defining film 70. The opening 70-OP of the pixel defining film 70 exposes at least a portion of the first electrode AE.
[0140] The display panel DP 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. The light-emitting region PXA is defined to correspond to the portion of the first electrode AE exposed by the opening 70-OP.
[0141] The light-emitting layer EL can be located on the first electrode AE. The light-emitting layer EL can be located in the region corresponding to the opening 70-OP. That is, the light-emitting layer EL can be formed separately or independently in each of the pixels. If the light-emitting layer EL is formed separately in each of the pixels, each of the light-emitting layer EL can emit light of at least one of blue, red, and green. However, without being limited thereto, the light-emitting layer EL can be arranged across pixels so as to be commonly included in the pixels. In this case, the light-emitting layer EL can provide blue light or white light.
[0142] The second electrode CE can be located on the light-emitting layer EL. The second electrode CE can have a monolithic shape and can be commonly included in multiple pixels.
[0143] In one or more embodiments of this disclosure, a hole control layer may be located between the first electrode AE and the light-emitting layer EL. The hole control layer may be commonly located within the light-emitting region PXA and the non-light-emitting region NPXA. The hole control layer may include a hole transport layer and may also include a hole injection layer. An electron control layer may be located between the light-emitting layer EL and the second electrode CE. The electron control layer may include an electron transport layer and may also include an electron injection layer. The hole control layer and the electron control layer may be commonly formed in multiple pixels using an aperture mask or an inkjet process.
[0144] Encapsulation layer 140 may be located on light-emitting element layer 130. Encapsulation layer 140 may include inorganic layers, organic layers, and inorganic layers stacked sequentially, but the layers constituting encapsulation layer 140 are not limited thereto. Inorganic layers may protect light-emitting element layer 130 from moisture and oxygen, and organic layers may protect light-emitting element layer 130 from foreign matter such as dust particles. Inorganic layers may include silicon nitride layers, silicon oxide nitride layers, silicon oxide layers, titanium oxide layers, aluminum oxide layers, etc. Organic layers may include acrylic-based organic layers, but this disclosure is not limited thereto.
[0145] 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. The base insulating layer 201 may be defined as the first insulating layer of the sensor layer 200, the sensing insulating layer 203 may be defined as the second insulating layer of the sensor layer 200, and the cover insulating layer 205 may be defined as the third insulating layer of the sensor layer 200.
[0146] The base insulating layer 201 may be an inorganic layer comprising at least any one of silicon nitride, silicon oxide, 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 monolayer structure or a multilayer structure in which the layers are stacked along a third direction DR3.
[0147] Each of the first conductive layer 202 and the second conductive layer 204 may have a single-layer structure or a multilayer structure in which the layers are stacked along the third direction DR3. The second conductive layer 204 may be connected to the first conductive layer 202 through a contact hole CNT-4 passing through the sensing insulating layer 203.
[0148] Each of the first conductive layer 202 and the second conductive layer 204, which have a single-layer structure, 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 transparent conductive oxides such as indium tin oxide (ITO), indium zinc oxide (IZO), zinc oxide (ZnO), and indium zinc tin oxide (IZTO). Furthermore, the transparent conductive layer may include conductive polymers such as poly(3,4-ethylenedioxythiophene) (PEDOT), metal nanowires, graphene, etc.
[0149] Each of the first conductive layer 202 and the second conductive layer 204, which have a multilayer structure, may include a metal layer. The metal layer may have a three-layer structure, such as titanium / aluminum / titanium. The multilayer conductive layer may include at least one metal layer and at least one transparent conductive layer.
[0150] At least one of the sensing insulating layer 203 and the 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 nitride, zirconium oxide, and hafnium oxide.
[0151] At least one of the sensing insulating layer 203 and the cover insulating layer 205 may include an organic film. The organic film may include at least one of the following: acrylic acid-based resin, methacrylic acid-based resin, polyisoprene-based resin, ethylene-based resin, epoxy-based resin, polyurethane-based resin, cellulose-based resin, siloxane-based resin, polyimide-based resin, polyamide-based resin, and dinoflagellate-based resin.
[0152] As an example, a sensor layer 200 is described, comprising three insulating layers 201, 203, and 205 and two conductive layers 202 and 204, but this disclosure is not limited thereto. The sensor layer 200 may include four insulating layers and three conductive layers, or it may include five insulating layers and four conductive layers. Some of the plurality of insulating layers and the plurality of conductive layers may be located below the base layer 110.
[0153] Figure 6 This is a plan view of sensor layer 200 according to one or more embodiments of the present disclosure. Figure 7 This is an enlarged plan view of a sensing unit SU according to one or more embodiments of the present disclosure. Figure 8A This is a plan view showing the first conductive layer 202SU of a sensing unit SU according to one or more embodiments of the present disclosure. Figure 8B This is a plan view showing the second conductive layer 204SU of a sensing unit SU according to one or more embodiments of the present disclosure. Figure 9 It is along one or more embodiments of this disclosure Figure 8A and Figure 8B The cross-sectional view of sensor layer 200 shown by line I-I' in each of the diagrams.
[0154] refer to Figure 6 The sensing area (also referred to as the "sensing area") 200A and the adjacent peripheral area 200NA can be defined within the sensor layer 200. The display area corresponding to the sensing area 200A and the non-display area corresponding to the peripheral area 200NA can also be defined within... Figure 3 and Figure 5 In the display layer 100. Figure 5 The luminescent area PXA and the non-luminescent area NPXA in the diagram can correspond to the display area. (For example, in a plan view) The non-display area can be located outside the display area.
[0155] The sensor layer 200 may include a plurality of first electrodes 210, a plurality of second electrodes 220, a plurality of third electrodes 230 and a plurality of fourth electrodes 240 located in the sensing region 200A (the “first electrode” may also be referred to as the “first sensing electrode” and the “second electrode” may also be referred to as the “second sensing electrode”).
[0156] The first electrode 210 may intersect with the second electrode 220. Each of the first electrodes 210 may extend along the second direction DR2, and the first electrodes 210 may be arranged to be spaced apart from each other in the first direction DR1. Each of the second electrodes 220 may extend along the first direction DR1, and the second electrodes 220 may be arranged to be spaced apart from each other in the second direction DR2. The sensing unit SU of the sensor layer 200 may be the region where one of the first electrodes 210 and one of the second electrodes 220 intersect. Figure 6 Six first electrodes 210, ten second electrodes 220 and sixty sensing units SU are shown, but the number of first electrodes 210 and the number of second electrodes 220 are not limited thereto.
[0157] refer to Figure 6 and Figure 7 Each of the first electrodes 210 may include first separator electrodes 210-dv1 and 210-dv2. The first separator electrodes 210-dv1 and 210-dv2 may extend along a second direction DR2 and may be spaced apart from each other in a first direction DR1. The first separator electrodes 210-dv1 and 210-dv2 may have a shape that is linearly symmetrical with respect to the line extending in the second direction DR2 (e.g., they may be symmetrical).
[0158] Each of the second electrodes 220 may include second separator electrodes 220-dv1 and 220-dv2. The second electrodes 220 may extend along a first direction DR1 and may be spaced apart from each other in a second direction DR2. The second separator electrodes 220-dv1 and 220-dv2 may have a shape that is linearly symmetrical with respect to the line extending in the first direction DR1 (e.g., they may be symmetrical).
[0159] refer to Figure 7 , Figure 8A , Figure 8B and Figure 9 Each of the second separating electrodes 220-dv1 and 220-dv2 may include a bridging pattern 221 and two sensing patterns 222 located in the sensing unit SU. The bridging pattern 221 may be located on a different layer than the sensing patterns 222, and the bridging pattern 221 and the sensing patterns 222 may be electrically connected to each other through a first contact hole CNa. Figure 5 Similar to the contact hole CNT-4 in the example, the contact hole described below, including the first contact hole CNa, can pass through the sensing insulating layer 203. For example, the bridging pattern 221 can be included in the first conductive layer 202SU, and the sensing pattern 222 and the first separating electrodes 210-dv1 and 210-dv2 can be included in the second conductive layer 204SU. The first conductive layer 202SU can be included in... Figure 5 The first conductive layer 202, and the second conductive layer 204SU may be included in the ... second conductive layer 204SU. Figure 5 The conductive pattern and / or electrodes are formed in the second conductive layer 204 by photolithography.
[0160] refer to Figure 6 Each of the third electrodes 230 may extend along the second direction DR2, and the third electrodes 230 may be arranged to be spaced apart from each other in the first direction DR1. In one or more embodiments of this disclosure, each of the third electrodes 230 may include a plurality of first auxiliary electrodes 230s (“first auxiliary electrodes” may also be referred to as “first electrodes”) connected in parallel with each other. The number of first auxiliary electrodes 230s included in each of the third electrodes 230 may vary. For example, as the number of first auxiliary electrodes 230s included in each of the third electrodes 230 increases, the resistance of each of the third electrodes 230 decreases, and therefore, power efficiency and sensing sensitivity can be improved. Conversely, as the number of first auxiliary electrodes 230s included in each of the third electrodes 230 decreases, the annular coil pattern formed by using the third electrodes 230 can be implemented in more diverse forms.
[0161] Figure 6A third electrode 230 is shown comprising two first auxiliary electrodes 230s, but this disclosure is not particularly limited thereto. In one or more embodiments of this disclosure, each of the third electrodes 230 may include one first auxiliary electrode 230s. Reference Figure 6 The first auxiliary electrode 230s can be positioned in a one-to-one correspondence with the first electrode 210. Therefore, a portion of a first auxiliary electrode 230s can be located in... Figure 6 and Figure 7 In one or more embodiments of this disclosure, the third electrode 230 may include three first auxiliary electrodes 230s.
[0162] refer to Figures 6 to 9 The coupling capacitor can be defined between a first electrode 210 and a first auxiliary electrode 230s. In this case, the induced current generated during pen sensing can be transmitted from the first auxiliary electrode 230s to the first electrode 210 through the coupling capacitor. That is, the first auxiliary electrode 230s can be used to supplement the signal transmitted from the first electrode 210 to the sensor driver 200C. Therefore, the maximum effect can be obtained if the phase of the signal sensed in the first auxiliary electrode 230s matches the phase of the signal sensed in the first electrode 210. Therefore, (e.g., in a plan view) the center of each of the first electrodes 210 in the first direction DR1 and the center of each of the first auxiliary electrodes 230s in the first direction DR1 can overlap with each other.
[0163] In one or more embodiments of this disclosure, because one third electrode 230 includes two first auxiliary electrodes 230s, one third electrode 230 may correspond to (or overlap with) two first electrodes 210. Therefore, the number of third electrodes 230 included in the sensor layer 200 may be less than the number of first electrodes 210. For example, the number of first electrodes 210 may be equal to a value obtained by multiplying the number of third electrodes 230 included in the sensor layer 200 by the number of first auxiliary electrodes 230s included in each of the third electrodes 230. Figure 6 In this configuration, the number of first electrodes 210 can be 6, the number of third electrodes 230 can be 3, and the number of first auxiliary electrodes 230s included in each of the third electrodes 230 can be 2.
[0164] The fourth electrode 240 may be arranged along the second direction DR2, and the fourth electrode 240 may extend along the first direction DR1. In one or more embodiments of this disclosure, the fourth electrode 240 may be divided into two groups. Fourth electrodes 240 belonging to the same group may be connected to the same trace (or the same connecting line). The fourth electrodes 240 divided into two groups may be referred to as second auxiliary electrodes 240s1 and 240s2 ("second auxiliary electrode" may also be referred to as "second electrode"). The second auxiliary electrodes 240s1 and 240s2 may be referred to as second-1 auxiliary electrode 240s1 and second-2 auxiliary electrode 240s2. The second-1 auxiliary electrode 240s1 and the second-2 auxiliary electrode 240s2 are connected to different corresponding fourth traces 240t-1 and 240t-2. The second-1 auxiliary electrode 240s1 is connected to the same fourth trace 240t-1, and the second-2 auxiliary electrode 240s2 is connected to the same fourth trace 240t-2.
[0165] In one or more embodiments of this disclosure, the fourth electrode 240 can be divided into two or more groups. If the fourth electrode 240 is connected to different traces, it can be divided into different groups. The fourth electrodes 240 divided into different groups can receive synchronization signals or the same signal through different fourth traces. In one or more embodiments of this disclosure, the fourth electrode 240 can be a group. The fourth electrode 240 can be connected to a single fourth trace.
[0166] In one or more embodiments of this disclosure, the fourth electrode 240 may be divided into three groups. Two of the three groups may be located on the left side of the sensing region 200A, and one of the three groups may be located on the right side of the sensing region 200A.
[0167] In one or more embodiments of this disclosure, the fourth electrode 240 can be divided into four groups. Two of the four groups can be located on the left side of the sensing region 200A, and two of the four groups can be located on the right side of the sensing region 200A. In the second direction DR2, the two groups on the left side can be positioned further away from or closer to the second pad PD2 or the third pad PD3 than the two groups on the right side. In the second direction DR2, the two groups on the left side and the two groups on the right side can form a Z-shape starting from the second pad PD2 or the third pad PD3.
[0168] The wiring directions of the second-1 auxiliary electrode 240s1 and the second-2 auxiliary electrode 240s2 may be different from each other. In this specification, "different wiring directions" means that the connection positions between the electrodes and traces are different from each other. For example, the first connection position of the fourth trace 240t-1 electrically connected to the second-1 auxiliary electrode 240s1 and the second connection position of the fourth trace 240t-2 electrically connected to the second-2 auxiliary electrode 240s2 may be different from each other. The first connection position may be at the left end of the second-1 auxiliary electrode 240s1, and the second connection position may be at the right end of the second-2 auxiliary electrode 240s2.
[0169] Figure 6 Five second-1 auxiliary electrodes 240s1 are shown to be electrically connected to each other, and five second-2 auxiliary electrodes 240s2 are shown to be electrically connected to each other. In one or more embodiments of this disclosure, the number of second-1 auxiliary electrodes 240s1 and the number of second-2 auxiliary electrodes 240s2 may be different from each other.
[0170] In one or more embodiments of this disclosure, as the number of the second-1 auxiliary electrodes 240s1 and the number of the second-2 auxiliary electrodes 240s2 increases, the area of the electrode (e.g., a single continuous electrode) that is electrically limited to one can increase. Furthermore, the resistance of the electrode that is electrically limited to one can be reduced, thereby improving the resistance to the second input 3000 (see...). Figure 4 ) sensing sensitivity.
[0171] refer to Figures 6 to 9 The coupling capacitor can be defined between a second electrode 220 and a second auxiliary electrode 240s1 or 240s2. In this case, the induced current generated during pen sensing can be transmitted from the second auxiliary electrode 240s1 or 240s2 to the second electrode 220 through the coupling capacitor. That is, the second auxiliary electrode 240s1 or 240s2 can be used to supplement the signal transmitted from the second electrode 220 to the sensor driver 200C. Therefore, the maximum effect can be obtained if the phase of the signal induced in the second auxiliary electrode 240s1 or 240s2 matches the phase of the signal induced in the second electrode 220. Therefore, (e.g., in a plan view) the center of each of the second electrodes 220 in the second direction DR2 and the center of each of the second auxiliary electrodes 240s1 and 240s2 in the second direction DR2 can overlap with each other.
[0172] refer to Figure 7 , Figure 8A and Figure 8BEach of the first auxiliary electrodes 230s may include a third-first pattern 231 and a third-second pattern 232. Meanwhile, the terms "third-first pattern 231" and "third-second pattern 232" are used only for the purpose of distinguishing them from other patterns. If the third-first pattern 231 is defined as a first pattern, then the third-second pattern 232 may be defined as a second pattern.
[0173] Pattern 231 (3-1) and pattern 232 (3-2) may be located on different corresponding layers and may be electrically connected to each other through the second contact hole CNb. Pattern 231 (3-1) may be included in the first conductive layer 202SU and pattern 232 (3-2) may be included in the second conductive layer 204SU.
[0174] In one or more embodiments of this disclosure, either pattern 231 (3-1) or pattern 232 (3-2) may be omitted. In one or more embodiments of this disclosure, although patterns 231 (3-1) and 232 (3-2) are positioned, they may not be electrically connected to each other. In this case, one of patterns 231 (3-1) and 232 (3-2) may correspond to the first auxiliary electrode 230s, and the other may correspond to a dummy electrode (or floating electrode).
[0175] In one or more embodiments of this disclosure, a portion of the third-1 pattern 231 may overlap with a portion of each of the first separating electrodes 210-dv1 and 210-dv2. Therefore, a coupling capacitor may be disposed (or formed) between the first electrode 210 and the third electrode 230. An opening 231-OP may be defined in the third-1 pattern 231. The bridging pattern 221 described above and the fourth-2 pattern 242, which will be described later, may be located in the opening 231-OP.
[0176] refer to Figure 7 , Figure 8A and Figure 8B Each of the second auxiliary electrodes 240s1 and 240s2 may include two fourth-1 patterns 241, one fourth-2 pattern 242, and two fourth-3 patterns 243 located in the sensing unit SU. Meanwhile, the terms "fourth-1 pattern 241, fourth-2 pattern 242, and fourth-3 pattern 243" are used only for the purpose of distinguishing them from other patterns. If the fourth-1 pattern 241 is defined as a first pattern, then the fourth-2 pattern 242 may be defined as a second pattern, and the fourth-3 pattern 243 may be defined as a third pattern.
[0177] Pattern 241 (4-1) and pattern 242 (4-2) may be located on the same layer, and pattern 243 (4-3) may be located on a different layer than pattern 241 (4-1) and pattern 242 (4-2). Pattern 241 (4-1) and pattern 243 (4-3) may be electrically connected to each other through a third contact hole CNc. Pattern 242 (4-2) and pattern 243 (4-3) may be electrically connected to each other through a fourth contact hole CNd. Pattern 241 (4-1) and pattern 242 (4-2) may be included in a first conductive layer 202SU, and pattern 243 (4-3) may be included in a second conductive layer 204SU.
[0178] refer to Figure 7 , Figure 8A and Figure 8B A portion of the fourth-1 pattern 241 may overlap with the sensing pattern 222 of each of the second separators 220-dv1 and 220-dv2. Therefore, a coupling capacitor may be defined (or disposed, formed) between the second electrode 220 and the fourth electrode 240.
[0179] In one or more embodiments of this disclosure, the first conductive layer 202SU may further include dummy patterns DMP. Each of the dummy patterns DMP may be electrically floated or electrically grounded. Some of the dummy patterns DMP may overlap with the first separator electrodes 210-dv1 and 210-dv2, and others may overlap with the sensing pattern 222. In one or more embodiments of this disclosure, the dummy patterns DMP may be omitted. In one or more embodiments of this disclosure, the dummy patterns DMP may be electrically connected to the overlapping electrodes among the first separator electrodes 210-dv1 and 210-dv2, thereby further improving sensing sensitivity.
[0180] refer to Figure 6 The sensor layer 200 may further include a plurality of first traces 210t located in the peripheral region 200NA and a plurality of first pads PD1 connected to the first traces 210t in a one-to-one correspondence. It may also include a plurality of second traces 220t and a plurality of second pads PD2 connected to the second traces 220t in a one-to-one correspondence. The traces including the first traces 210t and the second traces 220t described below may also be defined as connecting lines or wires.
[0181] The first trace 210t can be electrically connected to the first electrode 210 in a one-to-one correspondence. Two first separator electrodes 210-dv1 and 210-dv2, included in one first electrode 210, can be connected to one of the first traces 210t. Each of the first traces 210t can include multiple branches for connecting to the two first separator electrodes 210-dv1 and 210-dv2. In one or more embodiments of this disclosure, the two first separator electrodes 210-dv1 and 210-dv2 can be connected to each other in the sensing region 200A.
[0182] The second trace 220t can be electrically connected to the second electrode 220 in a one-to-one correspondence. Two second separator electrodes 220-dv1 and 220-dv2, included in one second electrode 220, can be connected to one of the second traces 220t. Each of the second traces 220t can include multiple branches for connecting to the two second separator electrodes 220-dv1 and 220-dv2. In one or more embodiments of this disclosure, the two second separator electrodes 220-dv1 and 220-dv2 can be connected to each other in the sensing region 200A.
[0183] refer to Figure 6 The sensor layer 200 may further include a third trace (e.g., a peripheral trace, or simply referred to as a trace or connection line in the claims) 230rt1 located in the peripheral region 200NA, two third pads PD3 connected to the respective ends of the third trace 230rt1, two fourth traces 240t-1 and 240t-2, two fourth pads PD4 connected to the fourth traces 240t-1 and 240t-2 respectively, a fifth trace 230rt2, and fifth pads PD5 connected to the fifth trace 230rt2 in a one-to-one correspondence. In one or more embodiments, the fifth pad PD5 may be positioned closer to one of the third pads PD3 (e.g., the third pad PD3 on the right) than the other of the third pads PD3 (e.g., the third pad PD3 on the right).
[0184] The third trace 230rt1 may be electrically connected to all of the third electrode 230. The third trace 230rt1 may include a first line portion 231t extending along a first direction DR1 and electrically connected to one end of the third electrode 230, a second line portion 232t extending from the first end of the first line portion 231t along a second direction DR2, and a third line portion 233t extending from the second end of the first line portion 231t along the second direction DR2. One end of the second line portion 232t is connected to a third pad PD3 (e.g., one of the third pads PD3), and one end of the third line portion 233t is connected to a third pad PD3 (e.g., another of the third pads PD3).
[0185] The fifth trace 230rt2 can be connected to the third electrode 230 in a one-to-one correspondence. That is, the number of fifth traces 230rt2 can correspond to the number of third electrodes 230. Figure 6 Three fifth traces 230rt2 are shown as examples.
[0186] The fourth traces 240t-1 and 240t-2 can be spaced apart from each other, and the sensing area 200A is inserted between the fourth traces 240t-1 and 240t-2. One end of each of the second-1 auxiliary electrodes 240s1 can be connected to one of the fourth traces 240t-1. One end of each of the second-2 auxiliary electrodes 240s2 can be connected to the other fourth trace 240t-2.
[0187] refer to Figures 6 to 9 A detailed description of the work by Figure 5 The sensor layer 200 is formed by the first conductive layer 202 and the second conductive layer 204, but this disclosure is not limited thereto.
[0188] In one or more embodiments of this disclosure, among the plurality of first electrodes 210, the plurality of second electrodes 220, the plurality of third electrodes 230, and the plurality of fourth electrodes 240 described above, one or more electrodes may be located at Figure 5 The display layer 100 shown is located below the base layer 110. Signal lines connected to electrodes located on the lower side may also be located below the base layer 110 of the display layer 100. In one or more embodiments of this disclosure, a plurality of first electrodes 210, a plurality of second electrodes 220, a plurality of third electrodes 230, and a plurality of fourth electrodes 240 may be formed by four conductive layers located on different corresponding layers. For example, the plurality of first electrodes 210 may be formed by a first conductive layer located on the base insulating layer 201 of the sensor layer 200, the plurality of second electrodes 220 may be formed by a second conductive layer located on the first conductive layer, the plurality of third electrodes 230 may be formed by a third conductive layer located on the second conductive layer, and the plurality of fourth electrodes 240 may be formed by a fourth conductive layer located on the third conductive layer.
[0189] Figure 10A yes Figure 8A The enlarged plan view of region AA' shown. Figure 10B yes Figure 8B The enlarged plan view of region BB' shown.
[0190] refer to Figure 8A , Figure 8B , Figure 10A and Figure 10BEach of the first electrode 210, second electrode 220, third electrode 230, fourth electrode 240, and dummy pattern DMP may have a grid structure. Each of the grid structures may include a plurality of grid lines. Each of the plurality of grid lines may have a straight line shape extending in a corresponding direction (e.g., a predetermined direction) and may be connected to each other. Openings in which no grid structure is positioned may be defined (set or formed) in each of the first electrode 210, second electrode 220, third electrode 230, fourth electrode 240, and dummy pattern DMP.
[0191] Figure 10A and Figure 10B The diagram illustrates a mesh structure comprising mesh lines extending along a first intersecting direction CDR1 that intersects a first direction DR1 and a second direction DR2, and mesh lines extending along a second intersecting direction CDR2 that intersects the first intersecting direction CDR1. However, the extension directions of the mesh lines constituting the mesh structure are not particularly limited to... Figure 10A and Figure 10B The diagram illustrates this. For example, the mesh structure may consist only of mesh lines extending in the first direction DR1 and the second direction DR2, or it may include mesh lines extending in the first direction DR1, the second direction DR2, the first intersecting direction CDR1, and the second intersecting direction CDR2. In other words, the mesh structure can be modified in various ways.
[0192] Figure 11 A sensor driver 200C according to one or more embodiments of the present disclosure is shown (see [link]). Figure 4 (The operation of )
[0193] refer to Figure 4 and Figure 11 The sensor driver 200C can be configured to selectively drive in any one of the first operating mode DMD1, the second operating mode DMD2, and the third operating mode DMD3.
[0194] The first operation mode DMD1 can be referred to as touch standby and pen standby mode, the second operation mode DMD2 can be referred to as touch activation and pen standby mode, and the third operation mode DMD3 can be referred to as pen activation mode. The first operation mode DMD1 can be a mode that waits for the first input 2000 and the second input 3000. Here, standby mode means "detecting the occurrence of the first input 2000 or the second input 3000". The second operation mode DMD2 can be a mode that senses the information of the first input 2000 and waits for the second input 3000 after sensing the occurrence of the first input 2000. "Sensing the information of the first input 2000" means "calculating the coordinate information of the first input 2000". Unlike the second operation mode DMD2, the third operation mode DMD3 can be a mode that senses the information of the second input 3000.
[0195] In one or more embodiments of this disclosure, the sensor driver 200C may initially operate in a first operating mode DMD1. If the occurrence of the first input 2000 is sensed in the first operating mode DMD1, the sensor driver 200C may switch (or change) to a second operating mode DMD2. Alternatively, if the occurrence of the second input 3000 is sensed in the first operating mode DMD1, the sensor driver 200C may switch (or change) to a third operating mode DMD3.
[0196] In one or more embodiments of this disclosure, if the occurrence of the second input 3000 is sensed in the second operating mode DMD2, the sensor driver 200C can switch to the third operating mode DMD3. If the first input 2000 is released in the second operating mode DMD2 (or if the occurrence of the first input 2000 is no longer sensed), the sensor driver 200C can switch to the first operating mode DMD1. If the second input 3000 is released in the third operating mode DMD3 (or the occurrence of the second input 3000 is no longer sensed), the sensor driver 200C can switch to the first operating mode DMD1.
[0197] Figure 12 A sensor driver 200C according to one or more embodiments of the present disclosure is shown (see [link]). Figure 4 (The operation of )
[0198] refer to Figure 4 , Figure 11 and Figure 12 The operation is shown in the first operation mode DMD1, the second operation mode DMD2, and the third operation mode DMD3 in sequence with time t.
[0199] In the first operating mode DMD1, the sensor driver 200C can be driven repeatedly in the second mode MD2-d and the first mode MD1-d. During the second mode MD2-d, the sensor layer 200 can be scanned to detect the second input 3000 (see...). Figure 4 The occurrence of ). During the first mode MD1-d, the sensor layer 200 can be scan-driven to detect the first input 2000 (see Figure 4 The occurrence of ). Figure 12 The sensor driver 200C is shown to operate in the first mode MD1-d consecutively after the second mode MD2-d, but the order is not limited to this.
[0200] In the second operating mode DMD2, the sensor driver 200C can be driven repeatedly in the second mode MD2-d and the first mode MD1. During the second mode MD2-d, the sensor layer 200 can be scanned to detect the occurrence of the second input 3000. During the first mode MD1, the sensor layer 200 can be scanned to detect information of the first input 2000.
[0201] In the third operating mode DMD3, the sensor driver 200C can be driven in the second mode MD2. During the second mode MD2, the sensor layer 200 can be scanned to detect information from the second input 3000. In the third operating mode DMD3, the sensor driver 200C may not operate in the first mode MD1-d or MD1 until the second input 3000 is released (or the occurrence of the second input 3000 is no longer sensed).
[0202] Also refer to Figure 6 In both the first mode MD1-d and the first mode MD1, the third electrode 230 and the fourth electrode 240 can be grounded. Therefore, touch noise can be reduced or prevented from entering through the third electrode 230 and the fourth electrode 240.
[0203] In both the second mode MD2-d and the second mode MD2, the first end of each of the third electrode 230 and the fourth electrode 240 can be floated. Furthermore, in both the second mode MD2-d and the second mode MD2, the other end of each of the third electrode 230 and the fourth electrode 240 can be grounded or floated. Therefore, by coupling the first electrode 210 and the third electrode 230, and by coupling the second electrode 220 and the fourth electrode 240, the compensation of the sensing signal can be improved or maximized.
[0204] Figure 13A A first mode according to one or more embodiments of the present disclosure is described. Figure 13B A first mode according to one or more embodiments of the present disclosure is described.
[0205] refer to Figure 12 , Figure 13A and Figure 13B The first mode MD1-d and the first mode MD1 may include a self-capacitance detection mode. The self-capacitance detection mode may include a first sub-part and a second sub-part. Figure 13A The operations in the first sub-section are described, and Figure 13B The operations in the second sub-section are described.
[0206] The sensor driver 200C outputs drive signals Txs1 and Txs2 to the first electrode 210 and the second electrode 220 in self-capacitance detection mode, and reads the changed signals after a period of time (e.g., a predetermined time). The sensor driver 200C can calculate the input coordinates by sensing the capacitance change of each of the first electrode 210 and the second electrode 220. (Reference) Figure 13A In the first sub-section, the sensor driver 200C can output a drive signal Txs1 to the first trace 210t. (See reference...) Figure 13B In the second sub-section, the sensor driver 200C can output a drive signal Txs2 to the second trace 220t. In the first sub-section, the sensor driver 200C can sense a signal that changes from the drive signal Txs1 passing through the first trace 210t. In the second sub-section, the sensor driver 200C can sense a signal that changes from the drive signal Txs2 passing through the second trace 220t.
[0207] The third electrode 230 is electrically connected to the third trace 230rt1 and the fifth trace 230rt2, and the fourth electrode 240 is electrically connected to the fourth traces 240t-1 and 240t-2. In self-capacitance detection mode, both the third electrode 230 and the fourth electrode 240 can be grounded. Therefore, noise can not enter through the third electrode 230 and the fourth electrode 240.
[0208] In one or more other embodiments of this disclosure, a reference potential may be applied to the third electrode 230 and the fourth electrode 240. In one or more other embodiments of this disclosure, a transmission signal and an in-phase signal may be applied to the third electrode 230 and the fourth electrode 240. In this case, noise may not enter through the third electrode 230 and the fourth electrode 240.
[0209] Figure 14 A first mode according to one or more embodiments of the present disclosure is described.
[0210] refer to Figure 4 , Figure 12 and Figure 14 The first mode MD1-d and the first mode MD1 may also include a mutual capacitance detection mode. Figure 14 The mutual capacitance detection mode is described.
[0211] In mutual capacitance detection mode, sensor driver 200C can sequentially provide transmission signal TX to first electrode 210, and can detect first input 2000 by using received signal RX detected by second electrode 220 (see...). Figure 4The coordinates of the input. For example, the sensor driver 200C can be configured to calculate the input coordinates by sensing the change in mutual capacitance between the first electrode 210 and the second electrode 220. In one or more embodiments of this disclosure, the transmission signal TX can be sequentially provided to the second electrode 220, and the first input 2000 (see...) Figure 4 The coordinates of the object can be detected using the received signal RX detected by the first electrode 210. The conflict driving methods described above can be executed alternately.
[0212] Figure 14 This diagram illustrates the provision of a transmission signal TX to a first electrode 210 and the output of a receive signal RX from a plurality of second electrodes 220. For clarity of signal representation, in... Figure 14 The first electrode 210, which is provided with the transmission signal TX, is indicated by a shaded line / shading. The sensor driver 200C can detect the input coordinates of the first input 2000 by sensing the capacitance change between the first electrode 210 and each of the second electrodes 220.
[0213] In mutual capacitance detection mode, both the third electrode 230 and the fourth electrode 240 can be grounded. Therefore, noise can bypass the third electrode 230 and the fourth electrode 240. In one or more other embodiments of this disclosure, a reference potential can be applied to the third electrode 230 and the fourth electrode 240. In one or more other embodiments of this disclosure, a transmission signal and an in-phase signal can be applied to the third electrode 230 and the fourth electrode 240. In this case, noise can bypass the third electrode 230 and the fourth electrode 240.
[0214] In each of the first mode MD1-d and the first mode MD1, the sensor layer 200 can be repeated alternately. Figure 13A , Figure 13B and Figure 14 The operations described herein. However, this is merely an example, and this disclosure is not particularly limited thereto. For example, under each of the first modes MD1-d and the first mode MD1, the sensor layer 200 may simply repeat the operations. Figure 14 The operation described herein. Alternatively, in the first mode MD1-d, sensor layer 200 can repeat the operation. Figure 13A , Figure 13B and Figure 14 At least one of the operations described herein, and in the first mode MD1, the sensor layer 200 can alternately repeat Figure 13A , Figure 13B and Figure 14 The operations described in the document.
[0215] Figure 15A second mode according to one or more embodiments of this disclosure is described. Figure 16 A graph showing the waveforms of a first signal and a second signal according to one or more embodiments of the present disclosure is presented.
[0216] refer to Figure 12 and Figure 15 The second mode MD2-d and the second mode MD2 can include a charging drive mode and a pen sensing drive mode. Furthermore, the charging drive mode can include a search charging drive mode and a tracking charging drive mode. Figure 15 The search charging drive mode is described.
[0217] refer to Figure 12 , Figure 15 and Figure 16 In charging drive mode, the sensor driver 200C can apply a first signal SG1 to one of the third pad PD3a and the fifth pad PD5a, and can apply a second signal SG2 to the other of the third pad PD3a and the fifth pad PD5a. The second signal SG2 can be an inverted signal of the first signal SG1. For example, the first signal SG1 can be a sine wave signal. Each of the first signal SG1 and the second signal SG2 can be a square wave signal. The relationship between the first signal SG1 and the second signal SG2 is not limited thereto. In one or more embodiments of this disclosure, if the first signal SG1 is a square wave signal, the second signal SG2 can have a constant voltage (e.g., a predetermined constant voltage).
[0218] Because the first signal SG1 and the second signal SG2 are applied to at least two pads, the current RFS forms a current path from one pad to another. Furthermore, because the first signal SG1 and the second signal SG2 are sinusoidal signals that are out of phase with each other, the direction of the current RFS can change periodically.
[0219] Refer again Figure 15 , Figure 15 A first signal SG1 is provided to a fifth pad PD5a connected to the third electrode 230, and a second signal SG2 is provided to a third pad PD3a connected to the third line portion 233t. Current RFS can flow along a current path defined by the fifth pad PD5a, the fifth trace 230rt2 connected to the fifth pad PD5a, the third electrode 230, a portion of the first line portion 231t, the third line portion 233t connected to the third pad PD3a, and the third pad PD3a. The current path can have a coil shape. Therefore, in the charging drive mode of the second mode MD2-d and the second mode MD2, the RLC resonant circuit of the pen PN can be charged by the magnetic field induced by the current path.
[0220] According to one or more embodiments of this disclosure, the current path of the loop coil pattern can be implemented by components included in the sensor layer 200. Therefore, the electronic device 1000 (see FIG. 1) can charge the pen PN using the sensor layer 200. Thus, because it is not necessary to separately add components with coils for charging the pen PN, the thickness and weight of the electronic device 1000 can be maintained without increasing its size, and the flexibility of the electronic device 1000 can be preserved.
[0221] In charging drive mode, the first electrode 210, the second electrode 220, and the fourth electrode 240 can be grounded, have an applied constant voltage, or be electrically floated. For example, the first electrode 210, the second electrode 220, and the fourth electrode 240 can be floated. In this case, the current RFS may not flow to the first electrode 210, the second electrode 220, and the fourth electrode 240.
[0222] Figure 17A This is a table showing the signals provided to the sensor layer according to one or more embodiments of this disclosure. Figure 17B This is a table showing the signals provided to the sensor layer according to one or more embodiments of this disclosure. Figures 17C to 17E A second charging drive mode according to one or more embodiments of this disclosure is described. Figures 17F to 17H A second charging drive mode according to one or more embodiments of this disclosure is described.
[0223] refer to Figure 6 , Figure 15 , Figure 16 and Figure 17A In each of the first time period t1, the second time period t2, the third time period t3, the fourth time period t4, the fifth time period t5, the sixth time period t6, the seventh time period t7, the eighth time period t8, and the ninth time period t9, Figure 17AThe table shows the signals provided to the second line portion 232t, the signals provided to the first charging channel 230ch1, the second charging channel 230ch2, the third charging channel 230ch3, the fourth charging channel 230ch4, the fifth charging channel 230ch5, the sixth charging channel 230ch6, the seventh charging channel 230ch7, the eighth charging channel 230ch8, the ninth charging channel 230ch9, and the tenth charging channel 230ch10 (hereinafter referred to as the first charging channels 230ch1 to the tenth charging channels 230ch10), and the signals provided to the third line portion 233t, or shows the status of the third pad PD3 and the fifth pad PD5. The first charging channels 230ch1 to the tenth charging channels 230ch10 may be referred to as the first channel to the tenth channel, the ten third electrode channels, or the ten channels. In this document, the charging channel may also be referred to as a "channel" or a "third electrode channel".
[0224] The first charging channel 230ch1 to the tenth charging channel 230ch10 can each correspond to the third electrode 230. Although Figure 15 Three third electrodes 230 are shown as an example only, but the sensor layer 200 may include more third electrodes 230, which can be described as first charging channel 230ch1 to tenth charging channel 230ch10. That is, the first charging channel 230ch1 to the tenth charging channel 230ch10 may correspond one-to-one with ten third electrodes 230.
[0225] In search charging drive mode Figure 17A The signals listed in the table shown are provided to sensor layer 200 (see table below). Figure 15 Therefore, since the position of the pen PN is not sensed, either the first signal SG1 or the second signal SG2 can be provided to all channels included in the sensor layer 200. That is, the entire area of the sensor layer 200 can be scanned in the search charging drive mode.
[0226] In the second mode, there are charging drive mode and pen sensing drive mode (see...). Figure 20A This can be repeated alternately. For example, after being charged during the first time period t1, sensor layer 200 can operate in pen sensing driven mode. During the second time period t2, if pen PN is not sensed, sensor layer 200 can be charged and driven again. Alternatively, if pen PN is sensed, sensor layer 200 can be driven in tracking charging driven mode, which will be referred to below. Figure 18 , Figure 19A and Figure 19B The description is as follows. Alternatively, in one or more embodiments of this disclosure, the sensor layer 200 may continuously operate in a search-to-charge drive mode even if the pen PN is sensed.
[0227] During the first time period t1, the second signal SG2 can be provided to the second line portion 232t, and the first signal SG1 can be provided to the third charging channel 230ch3 and the fourth charging channel 230ch4. During the first time period t1, the third line portion 233t, which is neither provided with the first signal SG1 nor the second signal SG2, and all of the remaining charging channels 230ch1, 230ch2, 230ch5, 230ch6, 230ch7, 230ch8, 230ch9, and 230ch10 can be floated (FL). Figure 17A and Figure 17B In this context, "FL" refers to the floating of the second line section 232t, the third line section 233t, and the corresponding sections of the charging channels 230ch1 to 230ch10.
[0228] During the second time period t2, the second signal SG2 can be provided to the second line portion 232t and the first charging channel 230ch1, and the first signal SG1 can be provided to the fourth charging channel 230ch4 and the fifth charging channel 230ch5. In the following, during the third time period t3, the fourth time period t4, the fifth time period t5, the sixth time period t6, the seventh time period t7, the eighth time period t8, and the ninth time period t9, the second signal SG2 and the first signal SG1 can be provided simultaneously while being shifted by one channel.
[0229] In one or more embodiments of this disclosure, the first signal SG1 can be provided to two channels, and the second signal SG2 can be provided to two channels, except for a first time period t1 in which the second signal SG2 is provided to the second line portion 232t and a ninth time period t9 in which the first signal SG1 is provided to the third line portion 233t. Providing the same signal to multiple channels reduces resistance. Therefore, as resistance decreases, the power consumption of the sensor layer 200 can be reduced.
[0230] However, the number of channels to which the first signal SG1 and the second signal SG2 are provided is not particularly limited thereto. For example, the first signal SG1 may be provided to one channel and the second signal SG2 may be provided to another channel, or the first signal SG1 may be provided to three or more channels and the second signal SG2 may be provided to three or more other channels.
[0231] In one or more embodiments of this disclosure, the operation of the second time period t2 can be omitted, and the operation of the third time period t3 can be executed immediately after the operation of the first time period t1. Furthermore, the operation of the eighth time period t8 can be omitted, and the operation of the ninth time period t9 can be executed immediately after the operation of the seventh time period t7.
[0232] To generate an electromagnetic field with a strength equal to or exceeding a certain level (e.g., a predetermined level), it is desirable that the floating charging channel be located between the charging channels to which the second signal SG2 and the first signal SG1 are provided, or between the second line portion 232t or the third line portion 233t and the charging channel. In one or more embodiments of this disclosure, it is shown that the first charging channel 230ch1 and the second charging channel 230ch2 are floating between the second line portion 232t and the third charging channel 230ch3 during a first time period t1. That is, it is shown that two floating channels (hereinafter referred to as gap channels) exist between the channel to which the first signal SG1 is provided and the channel to which the second signal SG2 is provided. As the number of gap channels increases, the strength of the magnetic field formed by the current RFS can increase. Therefore, the number of gap channels can be determined according to the electronic device 1000 (see...). Figure 1A The conditions of use or the type of pen may vary.
[0233] refer to Figure 15 , Figure 16 and Figure 17B During the first time period t1, the second signal SG2 can be provided to the second line portion 232t and the first charging channel 230ch1, and the first signal SG1 can be provided to the fourth charging channel 230ch4 and the fifth charging channel 230ch5. The third line portion 233t, which is neither provided with the first signal SG1 nor the second signal SG2, and all of the remaining charging channels 230ch2, 230ch3, 230ch6, 230ch7, 230ch8, 230ch9, and 230ch10, can be floated. In the following description, during the second time period t2, the third time period t3, the fourth time period t4, the fifth time period t5, the sixth time period t6, the seventh time period t7, the eighth time period t8, and the ninth time period t9, the second signal SG2 and the first signal SG1 can be provided while being shifted by one channel.
[0234] At the first time interval t1, the third trace 230rt1 can be driven using the second signal SG2, and the third trace 230rt1 is connected to the first end of each of the third electrodes 230. Furthermore, a portion of the fifth trace 230rt2 can be driven using the second signal SG2, and this portion of the fifth trace 230rt2 is connected to the second end of each of the first group of electrodes in the third electrodes 230. Another portion of the fifth trace 230rt2 can be driven using a first signal SG1, which is different from the second signal SG2, and this other portion of the fifth trace 230rt2 is connected to the second end of each of the second group of electrodes in the third electrodes 230.
[0235] When with Figure 17ACompared to the drive operation shown, in Figure 17B In the driving operation shown, the operation where the first signal SG1 or the second signal SG2 is only provided to the second line portion 232t or the third line portion 233t can be omitted. Therefore, the entire sensor layer 200 can be scanned during the first time period t1, the second time period t2, the third time period t3, the fourth time period t4, the fifth time period t5, the sixth time period t6, and the seventh time period t7. That is, according to Figure 17B One or more embodiments described herein, when in conjunction with Figure 17A During comparison, the entire sensor layer 200 can be scanned in a relatively short time.
[0236] Figures 17C to 17E The diagram illustrates the operations during the first, nth, and last time periods of a frame (or cycle) in search-charge driven mode. The nth time period can be... Figure 17A The third time period t3 to the seventh time period t7 in one or more embodiments described herein.
[0237] To allow currents RFS of equal intensity to flow during the first time period, the nth time period, and the last time period, it can be based on Figure 17A The resistance of the third electrode 230 (e.g., charging channels 230ch1 to 230ch10) is used to set the resistance of the second line portion 232t and the third line portion 233t. In one or more embodiments of this disclosure, each of the resistances of the second line portion 232t and the third line portion 233t may be substantially equal to the resistance of one of the charging channels 230ch1 to 230ch10. Furthermore, the resistances of the second line portion 232t and the third line portion 233t may be substantially equal to each other.
[0238] Because the third electrodes 230 respectively define charging channels 230ch1 to 230ch10, the resistance of the second line portion 232t and the resistance of the third line portion 233t can each be substantially equal to the resistance of one of the third electrodes 230. The charging channels 230ch1 to 230ch10 may include a plurality of first auxiliary electrodes 230s that are electrically connected to each other or receive the same signal. Figures 17C to 17E The charging channels 230ch1 to 230ch10 are shown to include two first auxiliary electrodes 230s.
[0239] The second wire portion 232t and the third wire portion 233t can be used as the third electrode 230, and the second wire portion 232t and the third wire portion 233t can produce substantially the same effect as having a third electrode 230 located in the peripheral region 200NA. For example, any of the second wire portion 232t and the third wire portion 233t, and any of the third electrode 230, can form a coil that induces an electromagnetic field. Although the pen PN is located in the peripheral region 200NA, the RLC resonant circuit of the pen PN can be charged. With the improvement of the charging sensitivity of the pen PN in the peripheral region 200NA, the signal-to-noise ratio of the pen PN in the peripheral region 200NA can be improved. This improvement in the signal-to-noise ratio of the pen PN can reduce the reference... Figure 4 and Figure 11 The description refers to the pen's standby mode time. Furthermore, improvements in the pen's signal-to-noise ratio (SNR) can increase the detectable hover height.
[0240] Figures 17F to 17H The following are illustrated with one or more embodiments of the present disclosure. Figures 17C to 17E Different search and charging drive modes. Figures 17F to 17H In the charging channels 230ch1 to 230ch10, a first auxiliary electrode 230s may be included. The resistance of each of the second line portion 232t and the third line portion 233t may be substantially equal to the resistance of one of the first auxiliary electrodes 230s. Furthermore, the resistance of the second line portion 232t may be less than the resistance of one of the first auxiliary electrodes 230s.
[0241] Figure 18 A second mode according to one or more embodiments of this disclosure is described. Figure 19A This is a table showing the signals provided to the sensor layer according to one or more embodiments of this disclosure. Figure 19B This is a table showing the signals provided to the sensor layer according to one or more embodiments of this disclosure.
[0242] Figure 18 The tracking charge drive mode is described. (Reference) Figure 12 and Figure 18 If the pen PN is sensed in the search charging drive mode, the sensor layer 200 can be driven in the tracking charging drive mode. For example, in the tracking charging drive mode, the sensor driver 200C can sequentially output the first signal SG1 and the second signal SG2 to the area overlapping with the point where the pen PN is sensed, instead of sequentially outputting the first signal SG1 and the second signal SG2 to the entire area of the sensor layer 200.
[0243] refer to Figure 18 and Figure 19AThis indicates the position PN-dt of the pen PN sensed in the previous frame. Figure 19A The diagram illustrates sensing of the pen PN in a region overlapping with the fifth charging channel 230ch5 and the sixth charging channel 230ch6. In this case, the sensor driver 200C can provide a first signal SG1 and a second signal SG2 to the channels located in the region including the fifth charging channel 230ch5 and the sixth charging channel 230ch6.
[0244] In one or more embodiments of this disclosure, the first signal SG1 and the second signal SG2 can provide a central loop to the position PN-dt of the pen PN around the previous frame and a region shifted from left to right by one channel based on the central loop. Figure 19A In the second time period t2 shown, the central loop can be provided (or formed) by the third charging channel 230ch3 and the fourth charging channel 230ch4, as well as the seventh charging channel 230ch7 and the eighth charging channel 230ch8.
[0245] During the first time period t1, the second signal SG2 can be provided to the second charging channel 230ch2 and the third charging channel 230ch3, and the first signal SG1 can be provided to the sixth charging channel 230ch6 and the seventh charging channel 230ch7. During the second time period t2, the second signal SG2 can be provided to the third charging channel 230ch3 and the fourth charging channel 230ch4, and the first signal SG1 can be provided to the seventh charging channel 230ch7 and the eighth charging channel 230ch8. During the third time period t3, the second signal SG2 can be provided to the fourth charging channel 230ch4 and the fifth charging channel 230ch5, and the first signal SG1 can be provided to the eighth charging channel 230ch8 and the ninth charging channel 230ch9.
[0246] Therefore, after sensing the position PN-dt of the pen PN, the channels driven by charge in response to the position PN-dt of the pen PN in the previous frame may be limited. Thus, since channels overlapping with regions where no pen PN is located are not driven by charge, the efficiency of charge driving can be improved.
[0247] refer to Figure 18 and Figure 19B This indicates the position of the pen PN in the previous frame, PN-dt. Figure 19BThe diagram illustrates sensing of the pen PN in a region overlapping with the fifth charging channel 230ch5 and the sixth charging channel 230ch6. In this case, the sensor driver 200C can provide a first signal SG1 and a second signal SG2 to the channels located in the region including the fifth charging channel 230ch5 and the sixth charging channel 230ch6. For example, the first signal SG1 and the second signal SG2 can provide a central loop to the position PN-dt of the pen PN around the previous frame, as well as a region shifted from left to right based on the central loop between the two channels.
[0248] Figure 19A The method describes the sequential formation of three loop coils, including a central loop, in a tracking charge drive mode, and... Figure 19B The present disclosure describes the sequential formation of five loop coils, including a central loop, in a tracking charge drive mode, but is not particularly limited thereto. For example, the number of loop coils formed sequentially in the tracking charge drive mode can be varied.
[0249] Figure 20A A second mode according to one or more embodiments of this disclosure is described. Figure 20B A second mode based on a sensing unit SU according to one or more embodiments of this disclosure is described.
[0250] Figure 20A and Figure 20B The pen sensing drive mode is described. Figure 20B The diagram shows a sensing unit SU through which the first induced current Ia, the second induced current Ib, the third induced current Ic, and the fourth induced current Id generated by the pen PN flow.
[0251] The RLC resonant circuit of the pen PN can emit a magnetic field at its resonant frequency while discharging the charged charge. The magnetic field provided by the pen PN generates a first induced current Ia in the first electrode 210 and a second induced current Ib in the second electrode 220. Furthermore, a third induced current Ic is generated in the first auxiliary electrode 230s of the third electrode 230, and a fourth induced current Id is generated in the second auxiliary electrode 240s of the fourth electrode 240.
[0252] A first coupling capacitor Ccp1 can be formed between the first auxiliary electrode 230s and the first electrode 210, and a second coupling capacitor Ccp2 can be formed between the second auxiliary electrode 240s and the second electrode 220. A third induced current Ic can be transmitted to the first electrode 210 through the first coupling capacitor Ccp1, and a fourth induced current Id can be transmitted to the second electrode 220 through the second coupling capacitor Ccp2.
[0253] The sensor driver 200C can receive a first received signal PRX1a based on a first induced current Ia and a third induced current Ic from the first electrode 210, and can receive a second received signal PRX2a based on a second induced current Ib and a fourth induced current Id from the second electrode 220. The sensor driver 200C can detect the input coordinates of the pen PN based on the first received signal PRX1a and the second received signal PRX2a.
[0254] During the pen sensing drive mode, one end of both the third electrode 230 and the fourth electrode 240 can be floating. By coupling the first electrode 210 and the third electrode 230, and by coupling the second electrode 220 and the fourth electrode 240, the compensation of the sensing signal can be improved or maximized. The other end of the third electrode 230 and the fourth electrode 240 can be grounded or floating. Therefore, by coupling the first electrode 210 and the third electrode 230, and by coupling the second electrode 220 and the fourth electrode 240, the third sensing current Ic and the fourth sensing current Id can be sufficiently transmitted to the first electrode 210 and the second electrode 220.
[0255] Figure 21A This is an equivalent circuit diagram illustrating the relationship between a channel CH-c and a pen PN according to one or more comparative embodiments of this disclosure. Figure 21B This is an equivalent circuit diagram illustrating the relationship between a channel CH-c and a pen PN according to one or more comparative embodiments of this disclosure.
[0256] refer to Figure 21A and Figure 21B A channel CH-c can consist of an electrode 210-c connected to the input terminal IT. The input terminal IT can correspond to a pad electrically connected between the sensor driver 200C and an electrode 210-c.
[0257] Capacitors Cbc1, Cbc2, Cbc3, and Cbc4 are confined within a single electrode 210-c. Capacitors Cbc1, Cbc2, Cbc3, and Cbc4 may be referred to as parasitic capacitors or fundamental capacitors.
[0258] refer to Figure 21A If the pen PN is close to a channel CH-c, a first induced electromotive force Vs(t) can be generated in electrode 210-c by the magnetic field generated by the pen PN. Therefore, an induced current IN-C can be generated in a channel CH-c. Figure 21A and Figure 21B In this configuration, the input terminal IT can be electrically connected to the sensor driver 200C (see [link]). Figure 4 This corresponds to a pad between a channel CH-c and a channel CH-c. For example, the input terminal IT could be the first pad PD1 (see [link]). Figure 6 If the PN terminal is close to a channel CH-c, the input terminal IT can be grounded. Therefore, since the first capacitor Cbc1 among capacitors Cbc1, Cbc2, Cbc3, and Cbc4 is grounded, current may not flow to the first capacitor Cbc1.
[0259] The induced current IN-C can be proportional to the sum of the capacitances of capacitors Cbc2, Cbc3, and Cbc4. For example, assuming the capacitance of each of capacitors Cbc2, Cbc3, and Cbc4 is Cb, the induced current IN-C changing with time can be expressed as the following mathematical expression 1.
[0260] Mathematical Expression 1
[0261]
[0262] refer to Figure 21B If the pen PN is close to a channel CH-c, an induced current IF-C can be generated in the channel CH-c by the magnetic field generated by the pen PN. Because the first capacitor Cbc1, the second capacitor Cbc2, and the third capacitor Cbc3 among capacitors Cbc1, Cbc2, Cbc3, and Cbc4 are grounded, current may not flow to capacitors Cbc1, Cbc2, and Cbc3. Assuming the capacitance of the fourth capacitor Cbc4 is Cb, the induced current IF-C that varies with time can be expressed as the following mathematical expression 2.
[0263] Mathematical Expression 2
[0264]
[0265] refer to Figure 21A and Figure 21B If the pen PN is located in an area adjacent to the input terminal IT, or if the pen PN is located in an area far from the input terminal IT, the strength of the induced current may differ. For example, the signal input by the pen PN from an area far from the input terminal IT or from an area far from the sensor driver 200C may be less than the signal input by the pen PN from an area close to the input terminal IT or from an area close to the sensor driver 200C. For example, the induced current IF-C may not be large enough to sense the input of the pen PN.
[0266] Figure 22A This is an equivalent circuit diagram illustrating the relationship between a channel CH and a pen PN according to one or more embodiments of the present disclosure. Figure 22B This is an equivalent circuit diagram illustrating the relationship between a channel CH and a pen PN according to one or more embodiments of the present disclosure.
[0267] refer to Figure 6 , Figure 22A and Figure 22B A channel CH may include a first electrode 210 connected to an input terminal IT and a first auxiliary electrode 230s coupled to a third electrode 230 of the first electrode 210.
[0268] Multiple first coupling capacitors Ccp11, Ccp12, Ccp13, and Ccp14 may be defined between the first electrode 210 and the first auxiliary electrode 230s. Capacitors Cbc1, Cbc2, Cbc3, and Cbc4 are defined within the first electrode 210. Capacitors Cbc1, Cbc2, Cbc3, and Cbc4 may be referred to as parasitic capacitors or fundamental capacitors.
[0269] The input terminal IT may correspond to a pad (e.g., a first pad PD1 electrically connected between the sensor driver 200C and the first electrode 210). One end of the first auxiliary electrode 230s may be electrically connected to a fifth pad PD5, and the other end of the first auxiliary electrode 230s may be electrically connected to a third trace 230rt1. In one or more embodiments of this disclosure, the fifth pad PD5 may be floating, and the third trace 230rt1 may be grounded or grounded via a bias capacitor.
[0270] refer to Figure 22A If the pen PN is close to a channel CH, a first induced electromotive force Vs(t) can be generated in the first electrode 210 by the magnetic field generated by the pen PN, and a second induced electromotive force Va(t) can be generated in the first auxiliary electrode 230s of the third electrode 230. A first induced current IN-M and a third induced current IN-B can be generated from the first induced electromotive force Vs(t), and a second induced current IN-A can be generated from the second induced electromotive force Va(t). Therefore, the total induced current IN input to the input terminal IT can correspond to the sum of the first induced current IN-M, the second induced current IN-A, and the third induced current IN-B.
[0271] For example, suppose that the capacitance of each of capacitors Cbc1, Cbc2, Cbc3 and Cbc4 is Cb, and the capacitance of each of the first coupling capacitors Ccp11, Ccp12, Ccp13 and Ccp14 is Cc.
[0272] The first induced current IN-M, which varies with time, can be expressed as the following mathematical expression 3.
[0273] Mathematical Expression 3
[0274]
[0275] The second induced current IN-A, which varies with time, can be expressed as the following mathematical expression 4.
[0276] Mathematical Expression 4
[0277]
[0278] The time-varying third induced current IN-B can be expressed as the following mathematical expression 5.
[0279] Mathematical Expression 5
[0280]
[0281] The first induced current IN-M can be an induced current caused by at least some of capacitors Cbc1, Cbc2, Cbc3, and Cbc4, and can be referred to as an auxiliary induced current. The first induced current IN-M generated in the first electrode 210 can be referred to as a first auxiliary induced current, and the first induced current IN-M generated in the second electrode 220 can be referred to as a second auxiliary induced current. Each of the second induced current IN-A and the third induced current IN-B can be an induced current caused by at least some of the first coupling capacitors Ccp11, Ccp12, Ccp13, and Ccp14, and can be referred to as a coupling induced current.
[0282] refer to Figure 22B If the pen PN is close to a channel CH, a first induced electromotive force Vs(t) can be generated in the first electrode 210 by the magnetic field generated by the pen PN, and a second induced electromotive force Va(t) can be generated in the first auxiliary electrode 230s of the third electrode 230. Because the two ends of each of the capacitors Cbc1, Cbc2, and Cbc3 located between the first induced electromotive force Vs(t) and the input terminal IT are grounded, current may not flow to capacitors Cbc1, Cbc2, and Cbc3.
[0283] A first induced current IF-M and a third induced current IF-B can be generated by a first induced electromotive force Vs(t), and a second induced current IF-A can be generated by a second induced electromotive force Va(t). Therefore, the total induced current IF input to the input terminal IT can correspond to the sum of the first induced current IF-M, the second induced current IF-A, and the third induced current IF-B.
[0284] For example, suppose that the capacitance of each of capacitors Cbc1, Cbc2, Cbc3 and Cbc4 is Cb, and the capacitance of each of the first coupling capacitors Ccp11, Ccp12, Ccp13 and Ccp14 is Cc.
[0285] The first induced current IF-M, which varies with time, can be expressed as the following mathematical expression 6.
[0286] Mathematical Expression 6
[0287]
[0288] The second induced current IF-A, which varies with time, can be expressed as the following mathematical expression 7.
[0289] Mathematical Expression 7
[0290]
[0291] The time-varying third induced current IF-B can be expressed as the following mathematical expression 8.
[0292] Mathematical Expression 8
[0293]
[0294] Figure 23 It is a graph showing the magnitude of the current based on the position of the pen relative to a channel.
[0295] refer to Figure 6 , Figure 21A , Figure 21B , Figure 22A , Figure 22B and Figure 23 The first line GP1 is based on Figure 21A and Figure 21B A graph showing the current magnitude measured according to the pen position in the comparative implementation method. The second line GP2 is based on... Figure 22A and Figure 22B The implementation method measures the current magnitude according to the pen position, and the curve is shown.
[0296] The first point PP1 can be related to Figure 21A and Figure 22A The positions of the pen PN shown correspond to each other, and the second point PP2 can be compared with... Figure 21B and Figure 22B The position of the pen PN shown corresponds to the position of the second point PP2. For example, at the second point PP2, it corresponds to the position of the pen PN. Figure 21B Compared with the comparative implementation method, according to Figure 22BThe implementation may additionally generate a second induced current IF-A and a third induced current IF-B in the third electrode 230 through the first coupling capacitors Ccp11, Ccp12, Ccp13, and Ccp14. Therefore, the total induced current IF can be greater than the total induced current IF-C according to one or more comparative embodiments of the present disclosure, and the strength of the total induced current IF can be large enough to sense the input of the pen PN. Furthermore, at the first point PP1, the total induced current IN can be greater than the total induced current IN-C according to one or more comparative embodiments of the present disclosure. Therefore, the strength of each of the total induced current IN at the first point PP1 and the total induced current IF at the second point PP2 can be ensured to be a value (e.g., a predetermined value) or greater.
[0297] Figure 24 This is a plan view of sensor layer 200 according to one or more embodiments of the present disclosure.
[0298] The second line portion 232t may include a first portion P1 having a first line width and a second portion P2 extending from the first portion P1 in the second direction DR2 and having a second line width smaller than the first line width. The third line portion 233t may include a first portion P10 having a third line width and a second portion P20 extending from the first portion P10 in the second direction DR2 and having a fourth line width smaller than the third line width.
[0299] Because the second portion P2 of the second line portion 232t is located outside the second trace 220t and the fourth trace 240t-1, the area of the peripheral region 200NA in which the second portion P2 of the second line portion 232t is located is relatively small. Therefore, the linewidth of the second portion P2 of the second line portion 232t is set to be relatively small. However, because the first portion P1 of the second line portion 232t is located outside the fourth trace 240t-1 in the first direction DR1, and because the second trace 220t is not located between the first portion P1 of the second line portion 232t and the sensing region 200A, the area of the peripheral region 200NA in which the first portion P1 of the second line portion 232t is located is relatively large. Therefore, the linewidth of the first portion P1 of the second line portion 232t can be increased.
[0300] Sensor layer 200 (for example, see Figure 6The sensor layer 200 may include a sensing region 200A (also referred to as "main region 200A") and a peripheral region 200NA. The sensor layer 200 may include electrodes in the main region 200A. The electrodes in the main region 200A may include a first electrode 210 (also referred to as "first sensing electrode 210") extending in a second direction DR2 and a second electrode 220 (also referred to as "second sensing electrode 220") extending in a first direction DR1. The electrodes in the main region 200A may also include first auxiliary electrodes 230s (also referred to as "first electrodes 230s") extending in the second direction DR2 and overlapping with the first sensing electrode 210, respectively. Each of the first electrodes 230s may include a first end (e.g., a top end) and a second end (e.g., a bottom end). The electrodes in the main region 200A may also include second auxiliary electrodes 240s (also referred to as "second electrodes 240s") extending in the first direction DR1 and overlapping with the second sensing electrode 220, respectively.
[0301] The sensor layer 200 may include lines in the peripheral region 200NA. The lines in the peripheral region 200NA may include a second trace 220t connected to one of the second sensing electrodes 220 (i.e., one of the second traces 220t described above (e.g., the second trace 220t located on the right side of the main region 200A), also referred to as "first-first line 220t"), a second trace 220t connected to the other of the second sensing electrodes 220 (i.e., the other of the second traces 220t described above (e.g., the second trace 220t located on the left side of the main region 200A), also referred to as "first-second line 220t"), and a fourth trace 240t-1 (also referred to as "second-first line 240t-1") connected to the second-1st auxiliary electrode 240s1 (also referred to as "first group of electrodes 240s1") of the second electrode 240s. One of the first group of electrodes 240s1 may overlap with a second sensing electrode 220 connected to the first-first line 220t.
[0302] The lines in the peripheral region 200NA may also include a fourth trace 240t-2 (also referred to as "second-second line 240t-2") connected to the second auxiliary electrode 240s2 (also referred to as "second group electrode 240s2") in the second electrode 240s. One of the second group electrodes 240s2 may overlap with the second sensing electrode 220 connected to the first-second line 220t.
[0303] The lines in the peripheral region 200NA may further include a third trace 230rt1 (also referred to as "third line 230rt1") connected to the first end of each of at least two of the first electrodes 230s, and a fifth trace 230rt2 (also referred to as "fourth line 230rt2") connected to the second end of each of the at least two of the first electrodes 230s. The first-second line 220t may be located in the first direction DR1 between the second-first line 240t-1 and the main region 200A. The second-second line 240t-2 may be located in the first direction DR1 between the first-first line 220t and the main region 200A.
[0304] Sensor layer 200 (for example, see Figure 6 It may also include connecting lines in the peripheral region 200NA. Connecting lines may include a fifth trace 230rt2 (also referred to as "first connecting line 230rt2") between the second ends (e.g., bottom ends) of at least two first electrodes 230s and the fifth pad PD5. Connecting lines may also include a third trace 230rt1 (also referred to as "second connecting line 230rt1") between the first ends (e.g., top ends) of at least two first electrodes 230s and the third pad PD3.
[0305] The second connecting line 230rt1 may include a first portion P1 having a first line width and a second portion P2 having a second line width, wherein the first line width is greater than the second line width.
[0306] Furthermore, the second connecting line 230rt1 may include a second line portion 232t facing at least two of the first electrodes 230s in the first direction DR1. The resistance of the second line portion 232t of the second connecting line 230rt1 may be less than the resistance of one of the at least two first electrodes 230s.
[0307] The at least two first electrodes 230s mentioned above can be referred to as the first group of electrodes. Furthermore, the first electrodes 230s may also include a second group of electrodes between the second wire portion 232t and the first group of electrodes.
[0308] When the second signal is applied to the second connection line 230rt1 at the first time, the first signal can be applied to the first connection line. The first signal can have a first phase, and the second signal can have a second phase opposite to the first phase.
[0309] Figure 25A Sensor layer 200 according to one or more embodiments of this disclosure (see Figure 5 A plan view of the first conductive layer 202. Figure 25B This is a plan view of the second conductive layer 204 of the sensor layer 200 according to one or more embodiments of the present disclosure.
[0310] refer to Figure 25A The sensing unit SU is shown in the sensing area 200A (see Figure 7 The first conductive layer is 202SU. (Reference) Figure 25B The sensing unit SU is shown in the sensing area 200A (see Figure 7 The second conductive layer is 204SU. Figure 8A This relates to a detailed description of the first conductive layer 202SU, and Figure 8B This involves a detailed description of the second conductive layer 204SU.
[0311] refer to Figure 25A The first trace is 210t (see Figure 6 The first layer portion 210t-1 can be located in the first conductive layer 202. The fifth trace 230rt2 (see...) Figure 6 The first layer portion 230rt2-1 of the first trace 210t can be located in the first conductive layer 202. In order to reduce or prevent the possibility of a short circuit between the first layer portion 210t-1 of the first trace 210t and the first layer portion 230rt2-1 of the fifth trace 230rt2, only one of the first layer portion 210t-1 of the first trace 210t and the first layer portion 230rt2-1 of the fifth trace 230rt2 can be located in the first conductive layer 202, or only one of the first layer portion 210t-1 of the first trace 210t and the first layer portion 230rt2-1 of the fifth trace 230rt2 can be open in the intersection region of the first layer portion 210t-1 of the first trace 210t and the first layer portion 230rt2-1 of the fifth trace 230rt2.
[0312] Third trace 230rt1 (see Figure 6 The first layer portion 230rt1-1 of the third trace 230rt1 may be located in the first conductive layer 202. The first layer portion 230rt1-1 of the third trace 230rt1 may include the first line portion 231t (see...). Figure 6 The first layer, 231t-1, and the second line, 232t (see...) Figure 6 The first layer section 232t-1 and the third line section 233t (see...) Figure 6 The first layer of 233t-1.
[0313] Conversely, at least one of the second trace 220t and the fourth traces 240t-1 and 240t-2 is not located in the sensor layer 200 (see Figure 5 In the first conductive layer 202 of ). For example Figure 25AAs shown, the second trace 220t and the fourth traces 240t-1 and 240t-2 may not be located in the first conductive layer 202. Therefore, a larger area can be ensured in the peripheral region 200NA where the first layer portion 232t-1 of the second line portion 232t and the first layer portion 233t-1 of the third line portion 233t are located. The first layer portion 232t-1 of the second line portion 232t and the first layer portion 233t-1 of the third line portion 233t may have a larger linewidth than the second layer portion 232t-2 of the second line portion 232t and the second layer portion 233t-2 of the third line portion 233t, which will be described later. Furthermore, the first layer portion 232t-1 of the second line portion 232t and the first layer portion 233t-1 of the third line portion 233t can have a larger line width than the first layer portion 231t-1 of the first line portion 231t and the second layer portion 231t-2 of the first line portion 231t, which will be described later. Therefore, the first layer portion 232t-1 of the second line portion 232t and the first layer portion 233t-1 of the third line portion 233t can also have a larger line width than the first line portion 231t.
[0314] refer to Figure 25B The first trace is 210t (see Figure 6 The second layer portion 210t-2 can be located within the second conductive layer 204. The fifth trace 230rt2 (see...) Figure 6 The second layer portion 230rt2-2 can be located in the second conductive layer 204. The second trace 220t (see...) Figure 6 ) and the fourth traces 240t-1 and 240t-2 (see Figure 6 At least one of them is located in the second conductive layer 204. For example... Figure 25B As shown, the second trace 220t and the fourth traces 240t-1 and 240t-2 can both be located in the second conductive layer 204.
[0315] Third trace 230rt1 (see Figure 6 The second layer portion 230rt1-2 of the third trace 230rt1 may be located in the second conductive layer 204. The second layer portion 230rt1-2 of the third trace 230rt1 may include the first line portion 231t (see...). Figure 6 The second layer section 231t-2 and the second line section 232t (see...) Figure 6 The second layer section 232t-2 and the third line section 233t (see) Figure 6 The second layer portion 233t-2 of the second line portion 232t can be connected via contact hole CNT-4 (see...). Figure 5The first layer portion 232t-1 of the second line portion 232t is connected to the second layer portion 233t-1 of the third line portion 233t, and the second layer portion 233t-2 of the third line portion 233t can be connected to the first layer portion 233t-1 of the third line portion 233t through the contact hole CNT-4.
[0316] In one or more embodiments of this disclosure, the second layer portion 230rt1-2 of the third trace 230rt1 may be omitted. In this case, the third pad PD3 may be connected to the first layer portion 230rt1-1 of the third trace 230rt1.
[0317] The third trace 230rt1 is in Figure 25A The first layer portion 230rt1-1 with a large linewidth and the third trace 230rt1 shown are in Figure 25A and Figure 25B The two-layer structure shown can reduce the resistance of the third trace 230rt1. If, as... Figures 17C to 17E The third electrode 230 of the defined channel shown includes a plurality of first auxiliary electrodes 230s, which are then applied by means of... Figure 25A and Figure 25B The third trace 230rt1, the second trace portion 232t, and the third trace portion 233t of the structure described herein can be used as a charging channel equivalent to the third electrode 230 in the charging drive mode.
[0318] In one or more embodiments of this disclosure, with Figure 25A and Figure 25B As shown, the first layer portion 232t-1 of the second line portion 232t may have a narrower width than the second layer portion 232t-2 of the second line portion 232t. The second layer portion 232t-2 of the second line portion 232t may have a width similar to that of the second line portion 232t. Figure 25A The first layer portion 232t-1 has the same width as the second line portion 232t, and the first layer portion 232t-1 of the second line portion 232t can have the same width as the second line portion 232t. Figure 25B The second layer section 232t-2 has a similar narrow width.
[0319] In one or more embodiments of this disclosure, such as Figure 25A and Figure 25B As shown, the first layer portion 232t-1 of the second line portion 232t can have a wider width than the second layer portion 232t-2 of the second line portion 232t. Furthermore, the second layer portion 232t-2 can overlap with the first layer portion 232t-1 at a layer different from the layer of the first layer portion 232t-1. Figure 25A and Figure 25BConversely, the second layer portion 233t-2 of the third line portion 233t can have a wider width than the first layer portion 233t-1 of the third line portion 233t.
[0320] Based on the above description, input from a pen and input from the user's body can be sensed. Input from the user's body can be sensed using capacitive methods, and input from a passive pen can be sensed using electromagnetic induction methods.
[0321] Capacitive input sensors and electromagnetic induction input sensors can be implemented using two conductive layers.
[0322] During the charging drive mode, the traces located in the peripheral region can function as channels located in the sensing region, and thus can charge the RLC resonant circuit of the pen located in the peripheral region.
[0323] Although the above description has been made with reference to preferred embodiments of the present disclosure, those skilled in the art will understand that various modifications and changes can be made to the present disclosure without departing from the spirit and scope of the disclosure as described in the appended claims. Therefore, the technical scope of the present disclosure should not be limited to what is described in the detailed description of the specification, but should be determined by the appended claims and their functional equivalents to be included in the claims.
Claims
1. An electronic device, characterized in that, The electronic device includes: Sensor drivers; and The sensor layer, driven by the sensor driver, includes a main region and a peripheral region, and further includes: Electrodes, in the main region, and including: A first sensing electrode extends in a first direction; The second sensing electrode extends in a second direction that intersects the first direction; A first electrode extends in the first direction and overlaps with the first sensing electrode, and each of the first electrodes includes a first end and a second end; and The second electrode extends in the second direction and overlaps with the second sensing electrode; and A connecting line, in the peripheral region, and including: A first connecting line is connected between the second end of each of at least two of the first electrodes and a first pad; and A second connection line connects the first end and the second pad of each of the at least two first electrodes. The second connecting line includes a first portion having a first line width and a second portion having a second line width. Wherein, the first line width is greater than the second line width. Wherein, when the second signal is applied to the second connection line at the first time, the first signal is applied to the first connection line, and The first signal has a first phase, and the second signal has a second phase that is opposite to the first phase.
2. The electronic device according to claim 1, characterized in that, The second connecting line includes: The first line portion is connected to the first end of each of the at least two first electrodes and faces the first pad in the first direction; The second line portion extends from the first line portion; and The third line extends from the first line. Wherein, the second line portion and the third line portion face each other in the second direction, and Wherein, at least one of the second line portion and the third line portion includes the first portion and the second portion.
3. The electronic device according to claim 2, characterized in that, The resistance of the second line portion is less than the resistance of one of the first electrodes.
4. The electronic device according to claim 2, characterized in that, The resistance of the second line portion is the same as the resistance of the at least two first electrodes.
5. The electronic device according to claim 1, characterized in that, The connecting line also includes: A third connecting line is located in the peripheral region and is connected to the first sensing electrode. The first-to-first connecting line is connected to one of the second sensing electrodes; The first-second connecting line is connected to another of the second sensing electrodes; A second-to-first connecting line is connected to a first set of electrodes in the second electrode group, and one of the first set of electrodes overlaps with one of the second sensing electrodes; and The second-to-second connecting line is connected to the second set of electrodes in the second electrode, and one of the second set of electrodes overlaps with the other of the second sensing electrode.
6. The electronic device according to claim 5, characterized in that, The first and second connecting lines are disposed in the second direction between the second and first connecting lines and the main region, and The second-second connecting line is disposed in the second direction between the first-first connecting line and the main region.
7. The electronic device according to claim 1, characterized in that, The sensor layer also includes a first insulating layer and a second insulating layer that overlap with the main region and the peripheral region. Each of the first sensing electrodes includes a first separator electrode and a second separator electrode spaced apart from each other over the first insulating layer and the second insulating layer in the second direction, and Each of the second sensing electrodes includes a sensing pattern above the first insulating layer and the second insulating layer, and a bridging pattern between the first insulating layer and the second insulating layer and connected to the sensing pattern.
8. The electronic device according to claim 7, characterized in that, Each of the first electrodes includes: A first pattern extends in the first direction between the first insulating layer and the second insulating layer, and overlaps with the first separating electrode and the second separating electrode; and The second pattern extends over the first and second insulating layers in the first direction and between the first and second separating electrodes in the second direction. The first pattern and the second pattern are connected to each other through contact holes passing through the second insulating layer.
9. The electronic device according to claim 7, characterized in that, Each of the second electrodes includes: A first pattern is located between the first insulating layer and the second insulating layer, and is spaced apart from each other in the second direction; The second pattern is located between the first insulating layer and the second insulating layer, and in the second direction between two adjacent first patterns in the first pattern; and The third pattern is located above the first and second insulating layers and is spaced apart from each other in the second direction. Wherein, the first pattern overlaps with the corresponding sensing pattern in the sensing pattern, and The third pattern is connected to the first pattern and to the second pattern.
10. The electronic device according to claim 7, characterized in that, The second connecting line includes a first layer portion between the first insulating layer and the second insulating layer, and a second layer portion above the first insulating layer and the second insulating layer and connected to the first layer portion.
11. The electronic device according to claim 10, characterized in that, The first layer portion has a larger line width than the second layer portion.
12. The electronic device according to claim 10, characterized in that, The first layer portion has a line width larger than the first connecting line.
13. The electronic device according to claim 10, characterized in that, The connecting line also includes: A third connecting line is connected to the first sensing electrode in the peripheral region, and is located above the first insulating layer and the second insulating layer; A first-first connecting line is connected to one of the second sensing electrodes and is located above the first insulating layer and the second insulating layer; The first-second connection line is connected to the other of the second sensing electrodes and is located above the first insulating layer and the second insulating layer; A second-to-first connecting line, above the first and second insulating layers, connects to a first set of electrodes in the second electrode group, and one of the first set of electrodes overlaps with one of the second sensing electrodes; and The second-to-second connecting line is located above the first insulating layer and the second insulating layer, and is connected to the second set of electrodes in the second electrode, wherein one of the second set of electrodes overlaps with the other of the second sensing electrode.
14. An electronic device, characterized in that, The electronic device includes: Sensor drivers; and The sensor layer, driven by the sensor driver, includes a main region and a peripheral region, and further includes: Electrodes, in the main region, and including: A first sensing electrode extends in a first direction; The second sensing electrode extends in a second direction that intersects the first direction; A first electrode extends in the first direction and overlaps with the first sensing electrode, and each of the first electrodes includes a first end and a second end; and The second electrode extends in the second direction and overlaps with the second sensing electrode; and A connecting line, in the peripheral region, and including: A first connecting line is connected between the second end of each of at least two of the first electrodes and a first pad; and A second connection line connects the first end and the second pad of each of the at least two first electrodes. The second connecting line includes a first line portion facing the at least two first electrodes in the second direction. Wherein, the resistance of the first wire portion of the second connecting wire is less than the resistance of one of the at least two first electrodes, and Specifically, when a second signal, different from the first signal, is applied to the second connection line at a first time, the first signal is applied to the first connection line.
15. The electronic device according to claim 14, characterized in that, The first signal includes a sinusoidal signal or a square wave signal having a phase opposite to that of the second signal.
16. The electronic device according to claim 14, characterized in that, The at least two first electrodes of the first electrode define a first group of electrodes, and The first electrode further includes a second set of electrodes disposed between the first line portion and the first set of electrodes.
17. The electronic device according to claim 16, characterized in that, The first electrode also includes a third set of electrodes. The first group of electrodes is disposed between the second group of electrodes and the third group of electrodes. During the first time interval, the second group of electrodes and the third group of electrodes do not receive the first signal and the second signal.
18. The electronic device according to claim 14, characterized in that, The first line portion includes: The first layer; and The second layer overlaps with the first layer, is located at a different layer than the first layer, and has a width smaller than that of the first layer.
19. An electronic device, characterized in that, The electronic device includes: Sensor drivers; and The sensor layer, driven by the sensor driver, includes a main region and a peripheral region, and further includes: Electrodes, in the main region, and including: A first sensing electrode extends in a first direction; The second sensing electrode extends in a second direction that intersects the first direction; A first electrode extends in the first direction and overlaps with the first sensing electrode, and each of the first electrodes includes a first end and a second end; and The second electrode extends in the second direction and overlaps with the second sensing electrode; and The line, in the peripheral region, and includes: The first-first line is connected to one of the second sensing electrodes; The first-second wire is connected to the other of the second sensing electrodes; The second-first line is connected to the first set of electrodes in the second electrode, and one of the first set of electrodes overlaps with one of the second sensing electrodes; The second-second line is connected to the second set of electrodes in the second electrode, and one of the second set of electrodes overlaps with the other of the second sensing electrode; A third wire is connected to the first end of each of at least two of the first electrodes; and The fourth wire is connected to the second end of each of the at least two first electrodes. The first and second lines are positioned in the second direction between the second and first lines and the main region. The second line is disposed in the second direction between the first line and the main region. When a second signal, different from the first signal, is applied to the fourth line at a first time, the first signal is applied to the third line.
20. The electronic device according to claim 19, characterized in that, The line also includes a fifth line in the peripheral region and connected to the first sensing electrode.
21. The electronic device according to claim 19, characterized in that, The third line includes: The first wire portion is connected to the first end of each of the at least two first electrodes; The second line portion extends from the first line portion; and The third line extends from the first line. The second line portion and the third line portion face each other in the second direction. Wherein, the second-first line is disposed in the second direction between the second line portion and the first-second line, and The first line is disposed in the second direction between the third line portion and the second line.
22. The electronic device according to claim 19, characterized in that, The third line comprises at least two sections with different line widths.
23. The electronic device according to claim 21, characterized in that, Each of the second and third line portions comprises two parts with different line widths.
Citation Information
Patent Citations
Manufacturing method of industrial dust collection filter
KR1020230149456A