Electronic device
By arranging sensor layers and pen sensing electrodes above and below the display layer of a multimedia electronic device, pen input sensing is achieved, solving the problem in the prior art of requiring a digitizer, which results in increased device thickness and weight, and improving the flexibility of the device and user experience.
Patent Information
- Application Number
- CN202510268070.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2024-03-14
- Filing Date
- 2025-03-07
- Publication Date
- 2025-09-16
AI Technical Summary
Existing multimedia electronic devices require a digitizer when using pen input, which increases the thickness and weight of the device and reduces its flexibility.
A structure in which a sensor layer and pen sensing electrodes are arranged above and below a display layer is adopted, and sensing of pen input is achieved through a cross layout of a plurality of first, second and third electrodes.
Pen input can be achieved without a digitizer, avoiding an increase in device thickness and weight, and improving device flexibility and user experience.
Smart Images

Figure CN120653145A_ABST
Abstract
Description
[0001] CROSS-REFERENCE TO RELATED APPLICATIONS
[0002] This application claims priority to and the benefit of Korean Patent Application No. 10-2024-0035795 filed in the Korean Intellectual Property Office on March 14, 2024, the entire contents of which are incorporated herein by reference. Technical Field
[0003] Aspects of embodiments of the present disclosure relate to an electronic device for sensing an input of a pen. Background Art
[0004] Multimedia electronic devices such as televisions, mobile phones, tablet computers, notebook computers, car navigation units, game consoles, etc. include display devices for displaying images. The electronic device may include a sensor layer (e.g., input sensor) capable of providing a touch-based input method that enables a user to intuitively and conveniently input information or instructions in an easy and simple manner in addition to other input methods such as buttons, keyboards, mice, etc. The sensor layer can sense the touch or pressure of the user. Recently, there is an increasing demand for the use of pens by users who are accustomed to using writing tools or pens for more precise touch input in specific applications (e.g., applications for mapping or drawing) to input information.
[0005] The above information disclosed in this Background section is for enhancement of understanding of the background of the present disclosure and therefore it may contain information that does not constitute prior art. Summary of the Invention
[0006] Embodiments of the present disclosure may relate to an electronic device for sensing an input of a pen.
[0007] According to one or more embodiments of the present disclosure, an electronic device includes: a display layer; a sensor layer above an upper surface of the display layer; and a plurality of pen sensing electrodes below the upper surface of the display layer. The sensor layer includes: a plurality of first electrodes arranged along a first direction; a plurality of second electrodes arranged along a second direction intersecting the first direction, the plurality of second electrodes intersecting the plurality of first electrodes; and a plurality of third electrodes arranged along the first direction and overlapping the plurality of first electrodes.
[0008] In an embodiment, each of the plurality of pen sensing electrodes may extend in a first direction, and the plurality of pen sensing electrodes may be positioned along a second direction.
[0009] In an embodiment, the electronic device may further include a plurality of auxiliary electrodes adjacent to the plurality of pen sensing electrodes.
[0010] In an embodiment, the plurality of pen sensing electrodes and the plurality of auxiliary electrodes may be located at the same layer as each other.
[0011] In an embodiment, the plurality of pen sensing electrodes may overlap with the plurality of auxiliary electrodes in a plan view.
[0012] In an embodiment, the plurality of pen sensing electrodes may include a first pen sensing electrode, a second pen sensing electrode, and a third pen sensing electrode positioned sequentially along the second direction. The wiring direction of the first pen sensing electrode may be the same as the wiring direction of the third pen sensing electrode, and the wiring direction of the second pen sensing electrode may be different from the wiring direction of the first pen sensing electrode.
[0013] In an embodiment, the plurality of pen sensing electrodes may include a first pen sensing electrode and a second pen sensing electrode. The first pen sensing electrode may include a first electrode portion, a second electrode portion, and a first bridge portion connecting the first electrode portion and the second electrode portion. The second pen sensing electrode may include a third electrode portion, a fourth electrode portion, and a second bridge portion connecting the third electrode portion and the fourth electrode portion. The first electrode portion and the third electrode portion may be spaced apart from each other in the first direction, the first electrode portion and the fourth electrode portion may be spaced apart from each other in the second direction, the third electrode portion and the second electrode portion may be spaced apart from each other in the second direction, and the fourth electrode portion and the second electrode portion may be spaced apart from each other in the first direction.
[0014] In an embodiment, the number of the plurality of pen sensing electrodes may be greater than or equal to the number of the plurality of second electrodes.
[0015] In an embodiment, the plurality of pen sensing electrodes may be aligned with the plurality of second electrodes in a plan view.
[0016] In an embodiment, the display layer may include a base layer, a circuit layer on the base layer, a light emitting element layer on the circuit layer, and an encapsulation layer on the light emitting element layer, and an upper surface of the display layer may be an upper surface of the encapsulation layer.
[0017] In an implementation, a plurality of pen sensing electrodes may be located on a lower surface of the base layer.
[0018] In an implementation, a lower surface of the base layer may have a concave shape corresponding to positions of the plurality of pen sensing electrodes.
[0019] In an embodiment, the base layer may include a first sub-base layer and a second sub-base layer on the first sub-base layer. The plurality of pen sensing electrodes may be located between the first sub-base layer and the second sub-base layer.
[0020] In an implementation, a plurality of pen sensing electrodes may be located in a circuit layer.
[0021] In an embodiment, the electronic device may further include a plurality of traces electrically connected to the plurality of pen sensing electrodes in a one-to-one correspondence, and routing directions of the plurality of traces may be the same as each other.
[0022] In an embodiment, each of the plurality of first electrodes, the plurality of second electrodes, and the plurality of third electrodes may have a mesh structure having a plurality of openings, and the plurality of pen sensing electrodes may have a solid structure not having a plurality of openings.
[0023] In an embodiment, the sensor layer may further include a plurality of traces electrically connected to the plurality of first electrodes, the plurality of second electrodes, and the plurality of third electrodes. The sensor layer may include a sensing region in which the plurality of first electrodes, the plurality of second electrodes, and the plurality of third electrodes are located, and a peripheral region adjacent to the sensing region. The peripheral region may include a trace region in which the plurality of traces are located, and an edge region adjacent to the trace region. The plurality of pen sensing electrodes may overlap the sensing region.
[0024] In an embodiment, a plurality of pen sensing electrodes may also overlap with the trace area.
[0025] In an embodiment, the plurality of pen sensing electrodes may also overlap with the trace area and the edge area.
[0026] In an embodiment, the electronic device may further include a sensor driver configured to drive the sensor layer and selectively operate in a first mode for sensing touch input or a second mode for sensing pen input. The second mode may include a pen sensing drive mode, and in the pen sensing drive mode, the sensor driver may be configured to receive a first reception signal based on a first sense current flowing through each of the plurality of first electrodes, and receive a second reception signal based on a second sense current flowing through each of the plurality of pen sensing electrodes.
[0027] In an embodiment, in the pen sensing driving mode, the sensor driver may be configured to additionally receive a third reception signal based on a third sense current flowing through each of the plurality of second electrodes.
[0028] In an embodiment, the plurality of third electrodes may be configured to be grounded in the first mode, the second mode may further include a charge driving mode, and the plurality of first electrodes and the plurality of second electrodes may be configured to float in the charge driving mode.
[0029] According to one or more embodiments of the present disclosure, an electronic device includes: a display layer; a plurality of first electrodes arranged along a first direction above an upper surface of the display layer; a plurality of second electrodes arranged along a second direction intersecting the first direction above the upper surface of the display layer; a plurality of pen sensing electrodes arranged along the second direction below the upper surface of the display layer; and a sensor driver configured to drive the plurality of first electrodes, the plurality of second electrodes, and the plurality of pen sensing electrodes, and selectively operate in a first mode for sensing touch input or a second mode for sensing pen input. The second mode includes a pen sensing drive mode, and in the pen sensing drive mode, the sensor driver is configured to receive a first reception signal based on a first sense current flowing through each of the plurality of first electrodes, and receive a second reception signal based on a second sense current flowing through each of the plurality of pen sensing electrodes.
[0030] In an embodiment, in the pen sensing driving mode, the sensor driver may be configured to additionally receive a third reception signal based on a third sense current flowing through each of the plurality of second electrodes.
[0031] In an embodiment, the electronic device may further include a plurality of third electrodes arranged along a first direction on the upper surface of the display layer, and the plurality of third electrodes may be configured to be grounded in the first mode. In the pen sensing drive mode, the first received signal may be a signal based on the first induced current and an auxiliary induced current flowing from the plurality of third electrodes toward the plurality of first electrodes. The second mode may also include a charging drive mode, and the plurality of first electrodes and the plurality of second electrodes may be configured to float in the charging drive mode.
[0032] In an embodiment, the electronic device may further include a plurality of auxiliary electrodes adjacent to the plurality of pen sensing electrodes, and the plurality of pen sensing electrodes and the plurality of auxiliary electrodes may be located at the same layer as each other, or the plurality of pen sensing electrodes may overlap the plurality of auxiliary electrodes in a plan view.
[0033] In an embodiment, the plurality of pen sensing electrodes may include a first pen sensing electrode, a second pen sensing electrode, and a third pen sensing electrode positioned sequentially along the second direction. The wiring direction of the first pen sensing electrode may be the same as the wiring direction of the third pen sensing electrode, and the wiring direction of the second pen sensing electrode may be different from the wiring direction of the first pen sensing electrode.
[0034] In an embodiment, the plurality of pen sensing electrodes may include a first pen sensing electrode and a second pen sensing electrode. The first pen sensing electrode may include a first electrode portion, a second electrode portion, and a first bridge portion connecting the first electrode portion and the second electrode portion. The second pen sensing electrode may include a third electrode portion, a fourth electrode portion, and a second bridge portion connecting the third electrode portion and the fourth electrode portion. The first electrode portion and the third electrode portion may be spaced apart from each other in the first direction, the first electrode portion and the fourth electrode portion may be spaced apart from each other in the second direction, the third electrode portion and the second electrode portion may be spaced apart from each other in the second direction, and the fourth electrode portion and the second electrode portion may be spaced apart from each other in the first direction.
[0035] According to one or more embodiments of the present disclosure, an electronic device includes: a display layer; a plurality of first electrodes arranged along a first direction above an upper surface of the display layer; a plurality of second electrodes arranged along a second direction intersecting the first direction above the upper surface of the display layer; a plurality of third electrodes arranged along the first direction above the upper surface of the display layer and overlapping with the plurality of first electrodes; a plurality of pen sensing electrodes arranged along the second direction below the upper surface of the display layer; and a sensor driver configured to calculate coordinates of a first input that causes a change in capacitance by utilizing the plurality of first electrodes and the plurality of second electrodes, and to calculate coordinates of a second input that emits a magnetic field by utilizing the plurality of first electrodes and the plurality of pen sensing electrodes.
[0036] In an embodiment, the plurality of third electrodes may be configured to be grounded when the sensor driver operates in a first mode for sensing coordinates for a first input, and the plurality of first electrodes and the plurality of second electrodes may be configured to float when the sensor driver operates in a charging drive mode for charging an input device configured to provide a second input.
[0037] In an embodiment, the electronic device is one of a television, a mobile phone, a tablet computer, a notebook computer, a car navigation unit, and a game console.
[0038] However, the present disclosure is not limited to the above aspects and features, and the above and additional aspects and features will be set forth in part in the following detailed description with reference to the accompanying drawings and in part will be obvious from thereto, or may be learned by practicing one or more of the presented embodiments of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS
[0039] The above and other aspects and features of the present disclosure will be more clearly understood from the following detailed description of exemplary, non-limiting embodiments with reference to the accompanying drawings.
[0040] Figure 1Ais a perspective view of an electronic device according to an embodiment of the present disclosure.
[0041] Figure 1B is a rear perspective view of an electronic device according to an embodiment of the present disclosure.
[0042] Figure 2 is a perspective view of an electronic device according to an embodiment of the present disclosure.
[0043] Figure 3 is a perspective view of an electronic device according to an embodiment of the present disclosure.
[0044] Figure 4 is a schematic cross-sectional view of a display panel according to an embodiment of the present disclosure.
[0045] Figure 5 is a view illustrating the operation of the electronic device according to an embodiment of the present disclosure.
[0046] Figure 6A is a cross-sectional view of a display panel according to an embodiment of the present disclosure.
[0047] Figure 6B is a cross-sectional view of a sensor layer according to an embodiment of the present disclosure.
[0048] Figure 7A is a plan view of a sensor layer according to an embodiment of the present disclosure.
[0049] Figure 7B is a plan view of a sensor layer according to an embodiment of the present disclosure.
[0050] Figure 8A is a plan view illustrating a first conductive layer of a sensing unit according to an embodiment of the present disclosure.
[0051] Figure 8B is a plan view illustrating a second conductive layer of a sensing unit according to an embodiment of the present disclosure.
[0052] Figure 9 According to the embodiment of the present disclosure Figure 8A and Figure 8B A cross-sectional view of the sensor layer taken along line II' shown in FIG.
[0053] Figure 10A yes Figure 8A An enlarged plan view of area AA' is shown in FIG.
[0054] Figure 10B yes Figure 8B An enlarged plan view of area BB' is shown in FIG.
[0055] Figure 11Ais a cross-sectional view of a display panel according to an embodiment of the present disclosure.
[0056] Figure 11B is a cross-sectional view of a display panel according to an embodiment of the present disclosure.
[0057] Figure 11C is a cross-sectional view of a display panel according to an embodiment of the present disclosure.
[0058] Figure 12A is a plan view of a lower sensor layer according to an embodiment of the present disclosure.
[0059] Figure 12B is a plan view of a lower sensor layer according to an embodiment of the present disclosure.
[0060] Figure 13 is a plan view of a lower sensor layer according to an embodiment of the present disclosure.
[0061] Figure 14 is a plan view of a lower sensor layer according to an embodiment of the present disclosure.
[0062] Figure 15 is a plan view illustrating some components of a sensor layer and some components of a lower sensor layer according to an embodiment of the present disclosure.
[0063] Figure 16 is a plan view illustrating some components of a sensor layer and some components of a lower sensor layer according to an embodiment of the present disclosure.
[0064] Figure 17 is a view illustrating the operation of the sensor driver according to an embodiment of the present disclosure.
[0065] Figure 18 is a view illustrating the operation of the sensor driver according to an embodiment of the present disclosure.
[0066] Figure 19 is a view showing a first mode of embodiment according to the present disclosure.
[0067] Figure 20 is a view showing a second mode according to an embodiment of the present disclosure.
[0068] Figure 21A is a graph depicting a waveform of a first signal according to an embodiment of the present disclosure.
[0069] Figure 21B is a graph depicting a waveform of a second signal according to an embodiment of the present disclosure.
[0070] Figure 22A is a view showing a second mode according to an embodiment of the present disclosure.
[0071] Figure 22B is a view showing a second mode according to an embodiment of the present disclosure.
[0072] Figure 23 is a view illustrating a second mode based on a sensor layer and a lower sensor layer according to an embodiment of the present disclosure.
[0073] Figure 24 is a view showing a second mode according to an embodiment of the present disclosure.
[0074] Figure 25 is a view illustrating a second mode based on a sensor layer and a lower sensor layer according to an embodiment of the present disclosure. DETAILED DESCRIPTION
[0075] Hereinafter, embodiments will be described in more detail with reference to the accompanying drawings, in which similar reference numerals represent similar elements throughout. However, the present disclosure can be implemented in a variety of different forms and should not be construed as being limited to the embodiments shown herein. On the contrary, these embodiments are provided as examples so that the present disclosure will be thorough and complete, and will fully convey the aspects and features of the present disclosure to those skilled in the art. Therefore, processes, elements and techniques that are not necessary for those of ordinary skill in the art to fully understand the aspects and features of the present disclosure may not be described. Unless otherwise noted, similar reference numerals represent similar elements throughout the drawings and written description, and therefore, their redundant descriptions may not be repeated.
[0076] When a certain embodiment can be implemented differently, the order of specific processes may be different from the order described. For example, two consecutively described processes may be performed simultaneously or substantially simultaneously, or may be performed in an order opposite to the order described.
[0077] In addition, as will be understood by those skilled in the art, in view of the overall disclosure, each appropriate feature of the various embodiments of the present disclosure may be combined in part or in whole or in combination with each other, and may be technically interlocked and operated in various appropriate manners, and each embodiment may be implemented independently of each other or in combination with each other in any appropriate manner, unless otherwise stated or implied.
[0078] In the accompanying drawings, for the sake of clarity, the relative sizes, thicknesses and proportions of elements, layers and regions may be exaggerated and / or simplified. For ease of explanation, spatial relative terms such as "below", "below", "down", "beneath", "above", "on" etc. may be used herein to describe the relationship between an element or feature and another (some) element or feature as shown in the drawings. It will be understood that, in addition to the orientations depicted in the drawings, spatial relative terms are intended to include different orientations of the device in use or in operation. For example, if the device in the drawings is flipped, the element described as being "below" or "below" or "below" other elements or features will then be oriented "above" other elements or features. Therefore, the exemplary terms "below" and "below" can include both above and below orientations. The device can be oriented in other ways (e.g., rotated 90 degrees or in other orientations), and the spatial relative descriptors used herein should be interpreted accordingly.
[0079] Furthermore, it should be appreciated that the shapes shown in the drawings may vary in practice due to, for example, tolerances and / or manufacturing techniques. Therefore, embodiments of the present disclosure should not be interpreted as limited to the specific shapes shown in the drawings, and should be interpreted as taking into account changes in shape that may occur, for example, as a result of manufacturing. Therefore, the shapes shown in the drawings may not depict the actual shape of regions of the device, and the present disclosure is not limited thereto.
[0080] In the drawings, the axis in the first direction DR1, the axis in the second direction DR2, and the axis in the third direction DR3 are not limited to the three axes of the rectangular coordinate system and can be interpreted in a broader sense. For example, the axis in the first direction DR1, the axis in the second direction DR2, and the axis in the third direction DR3 may be perpendicular or substantially perpendicular to each other, or may represent different directions that are not perpendicular to each other.
[0081] It will be understood that although the terms "first," "second," "third," etc. may be used herein to describe various elements, components, regions, layers, and / or parts, these elements, components, regions, layers, and / or parts should not be limited by these terms. These terms are used to distinguish one element, component, region, layer, or part from another element, component, region, layer, or part. Therefore, the first element, first component, first region, first layer, or first part described below may be referred to as a second element, second component, second region, second layer, or second part without departing from the spirit and scope of the present disclosure.
[0082] It will be understood that when an element or layer is referred to as being “on,” “connected to,” or “coupled to” another element or layer, it can be directly on, directly connected to, or directly connected to the other element or layer, or there may be one or more intervening elements or layers. Similarly, when a layer, region, or element is referred to as being “electrically connected to” another layer, region, or element, it can be directly electrically connected to the other layer, region, or element, and / or it can be indirectly electrically connected with one or more intervening layers, regions, or elements therebetween. Furthermore, it will be understood that when an element or layer is referred to as being “between” two elements or layers, it can be the only element or layer between the two elements or layers, or there may also be one or more intervening elements or layers.
[0083] The terms used herein are for the purpose of describing specific embodiments and are not intended to limit the present disclosure. As used herein, the singular forms "a" and "an" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will also be understood that the terms "comprises," "comprising," "includes," "including," "has," "have," and "having," when used in this specification, specify the presence of the stated features, wholes, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components, and / or groups thereof. As used herein, the term "and / or" includes any and all combinations of one or more of the relevant listed items. For example, the expression "A and / or B" means A, B, or A and B. When a statement such as "at least one of" precedes a list of elements, it modifies the entire list of elements and does not modify the individual elements in the list. For example, the expressions "at least one of a, b, and c" and "at least one selected from the group consisting of a, b, and c" mean only a, only b, only c, both a and b, both a and c, both b and c, all of a, b, and c, or variations thereof.
[0084] As used herein, the terms "substantially," "about," and similar terms are used as terms of approximation and not as terms of degree, and are intended to account for the inherent variation in measurements or calculations that would be recognized by one of ordinary skill in the art. In addition, when describing embodiments of the present disclosure, the use of "may" refers to "one or more embodiments of the present disclosure." As used herein, the terms "use," "using," and "used" may be considered synonymous with the terms "utilize," "utilizing," and "utilized," respectively.
[0085] As used herein, the terms "part" and "unit" may refer to a software component or a hardware component that performs a specific function. A hardware component may include, for example, a field programmable gate array (FPGA) or an application specific integrated circuit (ASIC). A software component may refer to executable code in an addressable storage medium and / or data used by the executable code. Thus, a software component may be, for example, an object-oriented software component, a class component, and / or a task component, and may include a process, a function, a property, a procedure, a subroutine, a program code segment, a driver, firmware, microcode, a circuit, data, a database, a data structure, a table, an array, a variable, and the like.
[0086] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present disclosure belongs. It will also be understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning consistent with their meaning in the context of the relevant art and / or this specification, and should not be interpreted in an idealized or overly formal sense unless explicitly defined as such herein.
[0087] Figure 1A is a perspective view of an electronic device 1000 according to an embodiment of the present disclosure. Figure 1B is a rear perspective view of the electronic device 1000 according to an embodiment of the present disclosure.
[0088] refer to Figure 1A and Figure 1B , the electronic device 1000 may be a device activated according to an electrical signal. For example, the electronic device 1000 may display an image and may sense an input applied from the outside (e.g., an external input). The external input may be a user input. The user input may include various appropriate types of external inputs, such as a part of the user's body, a pen PN, light, heat, or pressure.
[0089] The electronic device 1000 may include a first display panel DP1 and a second display panel DP2. The first display panel DP1 and the second display panel DP2 may be separate panels that are separated or spaced apart from each other. The first display panel DP1 may be referred to as a main display panel, and the second display panel DP2 may be referred to as an auxiliary display panel or an external display panel.
[0090] The first display panel DP1 may include a first display portion DA1-F, and the second display panel DP2 may include a second display portion DA2-F. The second display panel DP2 may have an area smaller than that of the first display panel DP1. The first display portion DA1-F and the second display portion DA2-F may have areas corresponding to the sizes of the first display panel DP1 and the second display panel DP2, respectively, and the first display portion DA1-F may have an area larger than the second display portion DA2-F.
[0091] In the unfolded state of the electronic device 1000, the first display portion DA1-F may have a plane parallel to or substantially parallel to the first direction DR1 and the second direction DR2. The thickness direction of the electronic device 1000 may be parallel to or substantially parallel to a third direction DR3 that intersects the first direction DR1 and the second direction DR2. Therefore, the front surface (e.g., upper surface) and the rear surface (e.g., lower surface) of the components constituting the electronic device 1000 may be defined based on the third direction DR3.
[0092] The first display panel DP1 or the first display portion DA1-F may include a foldable and unfoldable folding area FA and a plurality of non-folding areas NFA1 and NFA2 spaced apart from each other with the folding area FA therebetween. The second display panel DP2 may overlap one of the plurality of non-folding areas NFA1 and NFA2. For example, the second display panel DP2 may overlap the first non-folding area NFA1.
[0093] The display direction of the first image IM1a displayed on a portion of the first display panel DP1 (e.g., such as displayed on the first non-folding area NFA1) may be opposite to the display direction of the second image IM2a displayed on the second display panel DP2. For example, the first image IM1a may be displayed in a third direction DR3, and the second image IM2a may be displayed in a fourth direction DR4 opposite to the third direction DR3.
[0094] In an embodiment of the present disclosure, the folding area FA can be bent about a folding axis extending in a direction parallel to or substantially parallel to the long sides of the electronic device 1000 (e.g., such as in a direction parallel to or substantially parallel to the second direction DR2). When the electronic device 1000 is folded, the folding area FA has an appropriate curvature (e.g., a specific or predetermined curvature) and an appropriate curvature radius (e.g., a specific or predetermined curvature radius). The electronic device 1000 can be folded inwardly so that the first non-folding area NFA1 and the second non-folding area NFA2 face each other and the first display portion DA1-F is not exposed to the outside.
[0095] In an embodiment of the present disclosure, the electronic device 1000 can be folded in an outward folding manner so that the first display portion DA1-F is exposed to the outside. In an embodiment of the present disclosure, the electronic device 1000 can be folded in an inward folding manner and / or an outward folding manner from the unfolded state. However, the present disclosure is not limited thereto.
[0096] although Figure 1A An example is shown in which one folding area FA is defined (e.g., provided or included) in the electronic device 1000, but the present disclosure is not limited thereto. For example, multiple folding axes and multiple folding areas corresponding thereto may be defined in the electronic device 1000, and the electronic device 1000 may be folded inwardly and / or outwardly about the multiple folding axes from the unfolded state.
[0097] According to an embodiment of the present disclosure, even without including or using a digitizer, at least one of the first display panel DP1 and the second display panel DP2 can sense input from a pen PN. Because the digitizer for sensing the pen PN can be omitted, the increase in thickness and weight of the electronic device 1000 and the reduction in flexibility of the electronic device 1000 that would otherwise occur due to the addition of a digitizer can be avoided. Therefore, not only the first display panel DP1 but also the second display panel DP2 can be designed to sense the pen PN.
[0098] Figure 2 is a perspective view of an electronic device 1000 - 1 according to an embodiment of the present disclosure. Figure 3 is a perspective view of an electronic device 1000 - 2 according to an embodiment of the present disclosure.
[0099] Figure 2 An example is shown in which the electronic device 1000 - 1 is a mobile phone and the electronic device 1000 - 1 may include a display panel DP. Figure 3 An example is shown in which the electronic device 1000-2 is a notebook computer and the electronic device 1000-2 may include a display panel DP. Figure 3 This is a three-dimensional diagram of the electronic device 1000-2, but it is displayed based on the display panel DP in the electronic device 1000-2. Figure 3 The coordinate axes shown in .
[0100] In an embodiment of the present disclosure, the display panel DP may sense an input applied from the outside (e.g., an external input). The external input may be a user input. The user input may include various appropriate types of external inputs, such as a part of the user's body, a pen PN (e.g., a reference Figure 1A ), light, heat or pressure.
[0101] According to an embodiment of the present disclosure, the display panel DP can sense the input of the pen PN even without including or using a digitizer. Since the digitizer for sensing the pen PN can be omitted, the increase in thickness and weight of the electronic device 1000-1 or 1000-2 caused by the addition of the digitizer can be avoided.
[0102] Despite Figure 1A A foldable electronic device 1000 is shown in FIG. Figure 2 1 shows a bar-shaped electronic device 1000-1, but the present disclosure is not limited thereto. For example, the following description of the embodiments can be applied to various appropriate types of electronic devices, such as curved electronic devices, rollable electronic devices, slidable electronic devices, and / or stretchable electronic devices.
[0103] Figure 4 is a schematic cross-sectional view of a display panel DP according to an embodiment of the present disclosure.
[0104] refer to Figure 4 , the display panel DP may include a display layer 100 and a sensor layer 200 .
[0105] The display layer 100 may be a component that substantially generates an image. A display area 100A and a non-display area 100NA adjacent to the display area 100A may be defined in the display layer 100. An image may be displayed on the display area 100A.
[0106] The display layer 100 may be an emissive display layer. For example, the display layer 100 may be an organic light-emitting display layer, an inorganic light-emitting display layer, an organic-inorganic light-emitting display layer, a quantum dot display layer, a micro-LED display layer, or a nano-LED display layer. The display layer 100 may include a base layer 110, a circuit layer 120, a light-emitting element layer 130, and an encapsulation layer 140.
[0107] The base layer 110 may be a member that provides a base surface on which the circuit layer 120 is disposed. The base layer 110 may have a multi-layer 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 the present disclosure is not particularly limited thereto.
[0108] The circuit layer 120 may be provided on the base layer 110. The circuit layer 120 may include an insulating layer, a semiconductor pattern, a conductive pattern, and a signal line. The insulating layer, the semiconductor layer, and the conductive layer may be formed on the base layer 110 by a suitable process such as coating or deposition, and may be selectively patterned by performing a photolithography process multiple times.
[0109] The light emitting element layer 130 may be provided on the circuit layer 120. The light emitting element layer 130 may include a light emitting element. For example, the light emitting element layer 130 may include an organic light emitting material, an inorganic light emitting material, an organic-inorganic light emitting material, a quantum dot, a quantum rod, a micro-LED, or a nano-LED.
[0110] The encapsulation layer 140 may be disposed on the light emitting element layer 130. The encapsulation layer 140 may protect the light emitting element layer 130 from foreign substances such as moisture, oxygen, and dust particles.
[0111] The sensor layer 200 may be provided on the display layer 100. A sensing region 200A and a peripheral region 200NA adjacent to the sensing region 200A may be defined in the sensor layer 200. The sensing region 200A may overlap the display region 100A, and the peripheral region 200NA may overlap the non-display region 100NA.
[0112] In an embodiment of the present disclosure, the boundary BD between the display area 100A and the non-display area 100NA may overlap with the boundary BD between the sensing area 200A and the peripheral area 200NA. However, the present disclosure is not particularly limited to this. For example, the sensing area 200A may have an area larger than the display area 100A. As another example, the display area 100A may have an area larger than the sensing area 200A.
[0113] The sensor layer 200 can sense external input applied from the outside. The sensor layer 200 can be an integrated sensor formed continuously in the process of manufacturing the display layer 100. As another example, the sensor layer 200 can be an external sensor attached to the display layer 100. The sensor layer 200 can be referred to as a sensor, an input sensing layer, an input sensing panel, or an electronic device for sensing input coordinates.
[0114] According to an embodiment of the present disclosure, the sensor layer 200 can sense both input from a passive input or passive input means (such as a part of the user's body) and input from an input device that generates a magnetic field with an appropriate resonant frequency (e.g., a specific or predetermined resonant frequency). The input device can be referred to as a pen, input pen, magnetic pen, stylus, or electromagnetic resonance pen.
[0115] Figure 5 is a view illustrating the operation of the electronic device 1000 according to an embodiment of the present disclosure.
[0116] refer to Figure 5 , the electronic device 1000 may include a display layer 100, a sensor layer 200, a lower sensor layer 300, a display driver 100C, a sensor driver 200C, a main driver 1000C, and a power supply circuit 1000P.
[0117] The sensor layer 200 may be disposed on the upper surface of the display layer 100, and the lower sensor layer 300 may be disposed below the upper surface of the display layer 100. For example, the lower sensor layer 300 may be spaced apart from the sensor layer 200 and may be included in the display layer 100 or disposed below the display layer 100. Figures 11A to 11C The position of the lower sensor layer 300 is described in more detail.
[0118] The sensor layer 200 can sense a first input 2000 or a second input 3000 applied from the outside. The lower sensor layer 300 can sense a second input 3000 applied from the outside. Each of the first input 2000 and the second input 3000 can be an input of an input means capable of providing a change in the capacitance of the sensor layer 200, or an input of an input means capable of inducing an induced current in the sensor layer 200 and the lower sensor layer 300. For example, the first input 2000 can be a passive input or an input of a passive input means (such as a part of the user's body). The second input 3000 can be an input of a pen PN or an input of an RFIC tag. For example, the pen PN can be a passive type of pen or an active type of pen.
[0119] In an embodiment of the present disclosure, the pen PN may be a device that generates a magnetic field having an appropriate resonant frequency (e.g., a specific or predetermined resonant frequency). The pen PN may transmit an output signal based on an electromagnetic resonance scheme. The pen PN may be referred to as an input device, an input pen, a magnetic pen, a stylus, or an electromagnetic resonance pen.
[0120] Pen PN may include an RLC resonant circuit, and the RLC resonant circuit may include an inductor L and a capacitor C. In an embodiment of the present disclosure, the RLC resonant circuit may be a variable resonant circuit that varies the resonant frequency. In this case, inductor L may be a variable inductor, and / or capacitor C may be a variable capacitor. However, the present disclosure is not particularly limited thereto.
[0121] The inductor L generates a current through a magnetic field formed in the electronic device 1000, such as through the sensor layer 200 or a coil included in the electronic device 1000. However, the present disclosure is not particularly limited to this. For example, when the pen PN operates as an active type, the pen PN can generate a current even if a magnetic field is not provided to the pen PN from the outside. The generated current is transmitted to the capacitor C. The capacitor C charges the current input from the inductor L and discharges the charged current to the inductor L. Thereafter, the inductor L can emit a magnetic field having a resonant frequency. The induced current can flow in the sensor layer 200 and the lower sensor layer 300 by the magnetic field emitted from the pen PN. The induced current can be transmitted to the sensor driver 200C as a received signal (e.g., a sensing signal or a signal).
[0122] 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.
[0123] The display driver 100C can drive the display layer 100. The display driver 100C can receive image data and control signals from the main driver 1000C. The control signals can include various appropriate signals. For example, the control signals can include an input vertical synchronization signal, an input horizontal synchronization signal, a main clock signal, and a data enable signal.
[0124] The sensor driver 200C can drive the sensor layer 200 and the lower sensor layer 300. The sensor driver 200C can receive a control signal from the main driver 1000C. The control signal may include a clock signal for the sensor driver 200C. In addition, the control signal may also include a mode determination signal for determining the driving mode of the sensor driver 200C, the sensor layer 200, and the lower sensor layer 300.
[0125] The sensor driver 200C may be implemented with an integrated circuit (IC) and may be electrically connected to the sensor layer 200. For example, the sensor driver 200C may be directly mounted on an appropriate area (e.g., a specific or predetermined area) of the display panel. As another example, the sensor driver 200C may be mounted on a separate printed circuit board using a chip on film (COF) method and may be electrically connected to the sensor layer 200 and the lower sensor layer 300.
[0126] The sensor driver 200C, the sensor layer 200, and the lower sensor layer 300 can selectively operate in a first mode or a second mode. For example, the first mode may be a mode for sensing touch input, such as, for example, the first input 2000. The second mode may be a mode for sensing input from a pen PN, such as, for example, the second input 3000. The first mode may be referred to as a touch sensing mode, and the second mode may be referred to as a pen sensing mode.
[0127] The switching between the first mode and the second mode can be performed in various appropriate ways. For example, the sensor driver 200C, the sensor layer 200, and the lower sensor layer 300 can be driven in the first mode and the second mode in a time-division manner, and the first input 2000 and the second input 3000 can be sensed. As another example, the switching between the first mode and the second mode can be performed by a user's selection or a specific action of the user (e.g., a user's input), or by activating or deactivating a specific application, so that one of the first mode and the second mode can be activated or deactivated, or the driving mode can be switched from one mode to another. In another example, when the sensor driver 200C, the sensor layer 200, and the lower sensor layer 300 operate alternately in the first mode and the second mode, when the first input 2000 is sensed, the sensor driver 200C, the sensor layer 200, and the lower sensor layer 300 can remain in the first mode, and when the second input 3000 is sensed, the sensor driver 200C, the sensor layer 200, and the lower sensor layer 300 can remain in the second mode.
[0128] The sensor driver 200C can calculate the coordinate information of the input based on the signals received from the sensor layer 200 and the lower sensor layer 300, and can provide a coordinate signal containing the coordinate information to the main driver 1000C. The main driver 1000C performs an operation corresponding to the input based on the coordinate signal. For example, the main driver 1000C can operate the display driver 100C so that a new application image is displayed on the display layer 100.
[0129] The power supply circuit 1000P may include a power management integrated circuit (PMIC). The power supply circuit 1000P may generate a plurality of driving voltages for driving the display layer 100, the sensor layer 200, the display driver 100C, and the sensor driver 200C. For example, the plurality of driving voltages may include a gate high voltage, a gate low voltage, a first driving voltage (e.g., an ELVSS voltage), a second driving voltage (e.g., an ELVDD voltage), an initialization voltage, etc., but the present disclosure is not limited thereto.
[0130] Figure 6A is a cross-sectional view of a display panel DP according to an embodiment of the present disclosure.
[0131] refer to Figure 6AAt least one buffer layer (BFL) may be formed on the upper surface of the base layer 110. The buffer layer (BFL) may improve the coupling force between the base layer 110 and the semiconductor pattern. The buffer layer (BFL) may be formed of multiple layers. As another example, the display layer 100 may further include a barrier layer. The buffer layer (BFL) may include at least one of silicon oxide, silicon nitride, and silicon oxynitride. For example, the buffer layer (BFL) may include a structure in which silicon oxide layers and silicon nitride layers are alternately stacked one above the other.
[0132] The semiconductor patterns SC, AL, DR, and SCL may be disposed on the buffer layer BFL. The semiconductor patterns SC, AL, DR, and SCL may include polysilicon. However, the present disclosure is not limited thereto, and the semiconductor patterns SC, AL, DR, and SCL may include amorphous silicon, low-temperature polysilicon, or oxide semiconductor.
[0133] Figure 6A A portion (e.g., only a portion) of the semiconductor patterns SC, AL, DR, and SCL is shown, and semiconductor patterns may be additionally provided in other regions in other views. The semiconductor patterns SC, AL, DR, and SCL may be arranged throughout the pixel according to appropriate rules (e.g., specific or predetermined rules). The semiconductor patterns SC, AL, DR, and SCL may have different electrical properties depending on whether they are doped. The semiconductor patterns SC, AL, DR, and SCL may include a first region SC, DR, and SCL having high conductivity and a second region AL having low conductivity. The first region SC, DR, and SCL may be doped with an N-type dopant or a P-type dopant. A P-type transistor may include a doped region doped with a P-type dopant, and an N-type transistor may include a doped region doped with an N-type dopant. The second region AL may be a non-doped region, or may be a region that is more lightly doped than the first regions SC, DR, and SCL.
[0134] The first regions SC, DR, and SCL may have a higher conductivity than the second region AL and may substantially function as electrodes or signal lines. The second region AL may substantially correspond to the active region AL (e.g., channel) of the transistor 100PC. In other words, a portion AL of the semiconductor patterns SC, AL, DR, and SCL may be the active region AL of the transistor 100PC, another portion SC or DR of the semiconductor patterns SC, AL, DR, and SCL may be the source region SC or drain region DR of the transistor 100PC, and another portion SCL of the semiconductor patterns SC, AL, DR, and SCL may be a connection electrode or a connection signal line SCL.
[0135] Each of the pixels may have an equivalent circuit including a plurality of transistors, a capacitor, and at least one light emitting element. However, the present disclosure is not particularly limited thereto, and the equivalent circuit of the pixel may be variously modified as needed or desired. Figure 6A , one transistor 100PC and one light emitting element 100PE included in a pixel are shown as a representative example.
[0136] The source region SC, active region AL, and drain region DR of the transistor 100PC may be formed by semiconductor patterns SC, AL, DR, and SCL. The source region SC and the drain region DR may extend from the active region AL in opposite directions on the cross section (eg, in a sectional view). Figure 6A , a portion of a connection signal line SCL formed by the semiconductor patterns SC, AL, DR, and SCL is shown. In another view, when viewed from above a plane (eg, in a plan view), the connection signal line SCL may be connected to the drain region DR of the transistor 100PC.
[0137] The first insulating layer 10 may be disposed on the buffer layer BFL. The first insulating layer 10 may overlap with a plurality of pixels and may cover the semiconductor patterns SC, AL, DR, and SCL. 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 oxynitride, zirconium oxide, and hafnium oxide. In an embodiment, the first insulating layer 10 may be a single silicon oxide layer. Not only the first insulating layer 10, but also the insulating layer of the circuit layer 120 described in more detail below may be an inorganic layer and / or an organic layer and may have a single-layer structure or a multi-layer structure. The inorganic layer may include at least one of the aforementioned inorganic materials, but the present disclosure is not limited thereto.
[0138] The gate GT of the transistor 100PC is disposed on the first insulating layer 10. The gate GT may be part of a metal pattern. The gate GT overlaps with the active area AL. The gate GT may function as a mask during the process of doping or reducing the semiconductor patterns SC, AL, DR, and SCL.
[0139] The second insulating layer 20 may be disposed on the first insulating layer 10 and may cover the gate electrode GT. The second insulating layer 20 may 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 multi-layer structure. The second insulating layer 20 may include at least one of silicon oxide, silicon nitride, and silicon oxynitride. In an embodiment, the second insulating layer 20 may have a multi-layer structure including a silicon oxide layer and a silicon nitride layer.
[0140] The third insulating layer 30 may be provided 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.
[0141] The first connection electrode CNE1 may be disposed on the third insulating layer 30. The first connection electrode CNE1 may be connected to the connection signal line SCL through a contact hole CNT-1 penetrating the first insulating layer 10, the second insulating layer 20, and the third insulating layer 30.
[0142] The fourth insulating layer 40 may be disposed on the third insulating layer 30. The fourth insulating layer 40 may be a single silicon oxide layer. The fifth insulating layer 50 may be disposed on the fourth insulating layer 40. The fifth insulating layer 50 may be an organic layer.
[0143] The second connection electrode CNE2 may be disposed on the fifth insulating layer 50. The second connection electrode CNE2 may be connected to the first connection electrode CNE1 through a contact hole CNT-2 penetrating the fourth insulating layer 40 and the fifth insulating layer 50.
[0144] The sixth insulating layer 60 may be disposed on the fifth insulating layer 50 and may cover the second connection electrode CNE2. The sixth insulating layer 60 may be an organic layer.
[0145] The light-emitting element layer 130 may be disposed on the circuit layer 120. The light-emitting element layer 130 may include a light-emitting element 100PE. For example, the light-emitting element layer 130 may include an organic light-emitting material, an inorganic light-emitting material, an organic-inorganic light-emitting material, a quantum dot, a quantum rod, a micro-LED, or a nano-LED. Hereinafter, for ease of description, the light-emitting element 100PE may be described in more detail in the context of an organic light-emitting element. However, the present disclosure is not particularly limited thereto.
[0146] The light emitting element 100PE may include a first electrode AE, an emission layer EL, and a second electrode CE.
[0147] The first electrode AE may be disposed on the sixth insulating layer 60. The first electrode AE may be connected to the second connection electrode CNE2 through a contact hole CNT-3 penetrating the sixth insulating layer 60.
[0148] The pixel defining layer 70 may be disposed on the sixth insulating layer 60 and may cover a portion of the first electrode AE. The pixel defining layer 70 may have an opening 70-OP defined therein. The opening 70-OP of the pixel defining layer 70 exposes at least a portion of the first electrode AE.
[0149] The first display portion DA1-F (for example, referring to Figure 1A) may include an emission region PXA and a non-emission region NPXA adjacent to the emission region PXA. The non-emission region NPXA may surround the emission region PXA (e.g., around the periphery of the emission region PXA). In an embodiment, the emission region PXA is defined to correspond to a portion of the first electrode AE exposed by the opening 70-OP.
[0150] The emission layer EL may be disposed on the first electrode AE. The emission layer EL may be disposed in a region corresponding to the opening 70-OP. Figure 6A An example in which the emission layer EL is disposed in the opening 70 -OP is shown, but the present disclosure is not particularly limited thereto. For example, the emission layer EL may extend to cover the side surface of the pixel defining layer 70 defining the opening 70 -OP and a portion of the upper surface of the pixel defining layer 70 .
[0151] In an embodiment of the present disclosure, an emission layer EL may be formed separately for each pixel. When an emission layer EL is formed separately for each pixel, the emission layer EL may emit at least one of blue light, red light, and green light. However, the present disclosure is not limited thereto, and the emission layer EL may have an integral shape so as to be included in multiple pixels. In this case, the emission layer EL may provide blue light or white light.
[0152] The second electrode CE may be disposed on the emission layer EL. The second electrode CE may have an integral shape and may be commonly included in a plurality of pixels.
[0153] In an embodiment of the present disclosure, a hole control layer may be provided between the first electrode AE and the emission layer EL. The hole control layer is provided in both the emission region PXA and the non-emission region NPXA. The hole control layer may include a hole transport layer and may optionally include a hole injection layer. An electron control layer may be provided between the emission layer EL and the second electrode CE. The electron control layer may include an electron transport layer and may optionally include an electron injection layer. The hole control layer and the electron control layer may be formed together in multiple pixels using an open mask or an inkjet process.
[0154] The encapsulation layer 140 may be provided on the light emitting element layer 130. The encapsulation layer 140 may include an inorganic layer, an organic layer, and an inorganic layer stacked one above the other in sequence. However, the layers constituting the encapsulation layer 140 are not particularly limited thereto. The inorganic layer may protect the light emitting element layer 130 from moisture and oxygen, and the organic layer may protect the light emitting element layer 130 from foreign matter such as dust particles. The inorganic layer may include a silicon nitride layer, a silicon oxynitride layer, a silicon oxide layer, a titanium oxide layer, or an aluminum oxide layer. The organic layer may include an acrylic organic layer, but the present disclosure is not limited thereto.
[0155] The sensor layer 200 may include a base layer 201 , a first conductive layer 202 , an intermediate insulating layer 203 , a second conductive layer 204 , and a cover insulating layer 205 .
[0156] The base layer 201 may be an inorganic layer including at least one of silicon nitride, silicon oxynitride, and silicon oxide. As another example, the base layer 201 may be an organic layer including epoxy resin, acrylic resin, or imide-based resin. The base layer 201 may have a single-layer structure or a multi-layer structure stacked in the third direction DR3. In an embodiment of the present disclosure, the sensor layer 200 may not include the base layer 201.
[0157] Each of the first conductive layer 202 and the second conductive layer 204 may have a single-layer structure or may have a multi-layer structure stacked in the third direction DR3 .
[0158] Each of the first conductive layer 202 and the second conductive layer 204 having 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 a suitable alloy thereof. The transparent conductive layer may include a transparent conductive oxide such as indium tin oxide (ITO), indium zinc oxide (IZO), zinc oxide (ZnO), indium zinc tin oxide (IZTO), etc. In addition, the transparent conductive layer may include a conductive polymer such as poly (3,4-ethylenedioxythiophene) (PEDOT), metal nanowires, or graphene.
[0159] Each of the first conductive layer 202 and the second conductive layer 204 having a multi-layer structure may include multiple metal layers. The metal layer may have a three-layer structure of, for example, titanium / aluminum / titanium. The multi-layer conductive layer may include at least one metal layer and at least one transparent conductive layer.
[0160] In an embodiment of the present disclosure, the thickness of the first conductive layer 202 may be greater than or equal to the thickness of the second conductive layer 204. When the thickness of the first conductive layer 202 is greater than the thickness of the second conductive layer 204, the resistance of the components (e.g., electrodes, sensing patterns, or bridge patterns) included in the first conductive layer 202 may be reduced. In addition, because the first conductive layer 202 may be disposed below the second conductive layer 204, even if the thickness of the first conductive layer 202 increases, the probability that the components included in the first conductive layer 202 will be visually recognized due to reflection of external light may be lower than that of the second conductive layer 204.
[0161] At least one of the intermediate insulating layer 203 and the capping insulating layer 205 may include an inorganic film. The inorganic film may include at least one of aluminum oxide, titanium oxide, silicon oxide, silicon nitride, silicon oxynitride, zirconium oxide, and hafnium oxide.
[0162] At least one of the intermediate insulating layer 203 and the cover insulating layer 205 may include an organic film. The organic film may include at least one of acrylic resin, methacrylic resin, polyisoprene resin, vinyl resin, epoxy resin, urethane-based resin, cellulose resin, siloxane-based resin, polyimide resin, polyamide resin, and perylene-based resin.
[0163] Although the sensor layer 200 has been described as including the first conductive layer 202 and the second conductive layer 204, or in other words, including a total of two conductive layers, the present disclosure is not particularly limited thereto. For example, the sensor layer 200 may include three or more conductive layers.
[0164] Figure 6B is a cross-sectional view of a sensor layer 200 according to an embodiment of the present disclosure.
[0165] refer to Figure 6A and Figure 6B , the second width 204wt of the second mesh line MS2 included in the second conductive layer 204 may be greater than or equal to the first width 202wt of the first mesh line MS1 included in the first conductive layer 202. When the user USR views (e.g., observes) the first mesh line MS1 and the second mesh line MS2 from the side, because the first mesh line MS1 has a smaller width than the second mesh line MS2, the probability that the first mesh line MS1 will be visually recognized by the user USR may be reduced.
[0166] Each of the first mesh line MS1 and the second mesh line MS2 may include a first metal layer M1 and a second metal layer M2 disposed between the first metal layers M1. For example, the first metal layer M1 may include titanium (Ti), and the second metal layer M2 may include aluminum (Al). However, the present disclosure is not particularly limited thereto.
[0167] In an embodiment of the present disclosure, the first thickness TK1 of the second metal layer M2 of the first mesh line MS1 and the second thickness TK2 of the second metal layer M2 of the second mesh line MS2 may be the same or substantially the same as each other, but the present disclosure is not particularly limited to this. For example, the first thickness TK1 may be greater than the second thickness TK2. As another example, the second thickness TK2 may be greater than the first thickness TK1. Because the first mesh line MS1 can be arranged below the second mesh line MS2, even if the thickness of the first mesh line MS1 increases, the probability that the first mesh line MS1 will be visually recognized due to reflection of external light can be lower than that of the second mesh line MS2. In an embodiment of the present disclosure, each of the first thickness TK1 and the second thickness TK2 may be 1000 angstroms or greater, for example, such as 6000 angstroms.
[0168] Figure 7Ais a plan view of a sensor layer 200 according to an embodiment of the present disclosure.
[0169] refer to Figure 7A A sensing region 200A and a peripheral region 200NA adjacent to the sensing region 200A may be defined in the sensor layer 200. The sensor layer 200 may include a plurality of first electrodes 210, a plurality of second electrodes 220, and a plurality of third electrodes 230 disposed in the sensing region 200A.
[0170] Each of the first electrodes 210 may intersect with the second electrode 220. Each of the first electrodes 210 may extend in the second direction DR2. The first electrodes 210 may be arranged along the first direction DR1 so as to be spaced apart from each other. Each of the second electrodes 220 may extend in the first direction DR1. The second electrodes 220 may be arranged along the second direction DR2 so as to be spaced apart from each other. A sensing unit (e.g., a unit sensing region or area) SU of the sensor layer 200 may be a region where one first electrode 210 and one second electrode 220 intersect with each other.
[0171] exist Figure 7A , eight first electrodes 210 and six second electrodes 220 are shown as a representative example, and in this case, 48 sensing units SU are shown. However, the number of first electrodes 210 and the number of second electrodes 220 are not limited thereto. According to an embodiment of the present disclosure, the width of the sensing region 200A in the first direction DR1 may be greater than or equal to the width of the sensing region 200A in the second direction DR2. Therefore, the number of first electrodes 210 arranged along the first direction DR1 may be greater than the number of second electrodes 220 arranged along the second direction DR2.
[0172] Each of the third electrodes 230 may extend in the second direction DR2. The third electrodes 230 may be arranged along the first direction DR1 so as to be spaced apart from each other. One third electrode 230 may overlap one first electrode 210. As used herein, the expression "A overlaps with B" may mean that a portion of A overlaps with a portion of B, the entirety of A overlaps with a portion of B, the entirety of B overlaps with a portion of A, or the entirety of A overlaps with the entirety of B.
[0173] According to an embodiment of the present disclosure, the capacitance (eg, coupling capacitance) between one first electrode 210 and one third electrode 230 may be adjusted by adjusting the overlapping area between one first electrode 210 and one third electrode 230 .
[0174] The sensor layer 200 may further include a plurality of first traces 210t and a plurality of second traces 220t disposed in the peripheral area 200NA. The first traces 210t and the second traces 220t may be disposed in parallel with the display layer 100 (eg, reference Figure 4 The first trace 210t may be electrically connected to the first electrode 210 in a one-to-one correspondence. The second trace 220t may be electrically connected to the second electrode 220 in a one-to-one correspondence.
[0175] The sensor layer 200 may further include a plurality of first auxiliary traces 230rt1 and second auxiliary traces 230rt2.
[0176] In an embodiment of the present disclosure, at least one of the third electrodes 230, at least one of the first auxiliary traces 230rt1, and the second auxiliary trace 230rt2 may form a loop. A magnetic field may be formed by a current path defined by a loop. The magnetic field may be used to charge an external input device (e.g., such as a pen). Therefore, the first auxiliary trace 230rt1 may be referred to as a first loop trace, and the second auxiliary trace 230rt2 may be referred to as a second loop trace. The third electrode 230 may be referred to as a charging electrode, a loop electrode, or a first auxiliary electrode.
[0177] The first auxiliary traces 230rt1 may be connected to the third electrodes 230 in a one-to-one correspondence. In other words, the number of the first auxiliary traces 230rt1 may correspond to the number of the third electrodes 230. Figure 7A , eight first auxiliary traces 230rt1 and eight third electrodes 230 are shown as a representative example.
[0178] In an embodiment of the present disclosure, one first auxiliary trace 230rt1 may be electrically connected to a plurality of third electrodes 230. The plurality of third electrodes 230 connected to one first auxiliary trace 230rt1 may be referred to as an electrode group. As the number of third electrodes 230 connected in parallel included in an electrode group increases, the resistance of the electrode group may be reduced, and thus, power efficiency and sensing sensitivity may be improved. On the other hand, as the number of third electrodes 230 included in an electrode group decreases, the coil pattern formed using the electrode group may be implemented in a variety of desired forms.
[0179] The second auxiliary trace 230rt2 may be electrically connected to the third electrode 230. In an embodiment of the present disclosure, the second auxiliary trace 230rt2 may be electrically connected to all of the third electrodes 230.
[0180] The second auxiliary trace 230rt2 may include a first line portion 231t extending in the first direction DR1 and electrically connected to the third electrode 230, a second line portion 232t extending from a first end of the first line portion 231t in the second direction DR2, and a third line portion 233t extending from a second end of the first line portion 231t in the second direction DR2.
[0181] In an embodiment of the present disclosure, each of the resistance of the second line portion 232t and the resistance of the third line portion 233t may be the same or substantially the same as the resistance of one of the third electrodes 230. In order to adjust the resistance of the second line portion 232t and the resistance of the third line portion 233t, the width of the second line portion 232t and the third line portion 233t in the first direction DR1 may be adjusted. However, the present disclosure is not limited thereto, and the first line portion 231t, the second line portion 232t, and the third line portion 233t may have the same or substantially the same width as each other.
[0182] In an embodiment of the present disclosure, the second auxiliary trace 230rt2 can be arranged in a form surrounding the area where the first trace 210t, the second trace 220t, and the first auxiliary trace 230rt1 are arranged (for example, around the periphery of the area where the first trace 210t, the second trace 220t, and the first auxiliary trace 230rt1 are arranged). The second line portion 232t and the third line portion 233t can serve as the third electrode 230, and the same effect as placing the third electrode 230 in the peripheral area 200NA can be achieved. For example, one of the second line portion 232t and the third line portion 233t and one of the third electrodes 230 can form a coil. Therefore, a pen located in an area adjacent to the peripheral area 200NA can also be fully charged by the current loop including the second line portion 232t or the third line portion 233t.
[0183] The sensor layer 200 may further include a plurality of guard lines 200tg arranged in the peripheral area 200NA. Depending on the operating mode of the sensor layer 200, the guard line 200tg may be grounded or floating, or an appropriate signal (e.g., a specific or predetermined signal) may be provided to the guard line 200tg. For example, when the sensor layer 200 operates in mutual capacitance detection mode or pen sensing drive mode, the guard line 200tg may be grounded. When the sensor layer 200 operates in self-capacitance detection mode, the same signal as that provided to the adjacent trace may be provided to the guard line 200tg. Therefore, parasitic capacitance that may be formed between the traces may be reduced or eliminated by the guard line 200tg. When the sensor layer 200 operates in pen charging drive mode, the guard line 200tg may be floating.
[0184] The sensor layer 200 may further include a plurality of pads PD provided in the peripheral area 200NA. Figure 7A An example is shown in which the pads PD are arranged in a row along the first direction DR1, but the present disclosure is not particularly limited thereto. For example, the pads PD may be arranged in multiple rows. The pads PD may be electrically connected to the first trace 210t, the second trace 220t, the first auxiliary trace 230rt1, the opposite ends of the second auxiliary trace 230rt2, and the guard line 200tg in a one-to-one correspondence.
[0185] Figure 7B is a plan view of a sensor layer 200a according to an embodiment of the present disclosure. Figure 7B The same reference numerals may be used to denote the same reference numerals as those used in the above references. Figure 7A Those components are described as being the same or substantially the same components, and thus, redundant descriptions thereof may not be repeated.
[0186] refer to Figure 4 and Figure 7B The display panel DP includes a sensor layer 200a. The display panel DP may include a first area AA1, a bending area BA, and a second area AA2. The bending area BA may be disposed between the first area AA1 and the second area AA2, which are spaced apart from each other in the second direction DR2. The width of the bending area BA and the width (e.g., length) of the second area AA2 parallel to or substantially parallel to the first direction DR1 may be smaller than the width (e.g., length) of the first area AA1 parallel to or substantially parallel to the first direction DR1. A region having a smaller length in the direction of the bending axis may be more easily bent.
[0187] Figure 7B This is a plan view of the display panel DP in an unfolded state before it is assembled with other components, or in other words, before the display panel DP is modularized. A portion of the display panel DP can be bent and modularized. For example, the bending area BA can be bent so that the second area AA2 is located below the first area AA1.
[0188] A sensing region 200Aa and a peripheral region 200NAa adjacent to the sensing region 200Aa may be defined in the sensor layer 200a. Figure 7B , six first electrodes 210 and eight second electrodes 220 provided in the sensing region 200Aa are shown as a representative example, and thus, 48 sensing units SU are shown. However, the number of the first electrodes 210 and the number of the second electrodes 220 are not limited thereto.
[0189] According to an embodiment of the present disclosure, the width of the sensing region 200Aa in the first direction DR1 may be less than or equal to the width of the sensing region 200Aa in the second direction DR2. Therefore, the number of first electrodes 210 arranged along the first direction DR1 may be less than the number of second electrodes 220 arranged along the second direction DR2.
[0190] Figure 8A is a plan view illustrating a first conductive layer 202SU of a sensing unit SU according to an embodiment of the present disclosure. Figure 8B is a plan view illustrating the second conductive layer 204SU of the sensing unit SU according to an embodiment of the present disclosure. Figure 9 According to the embodiment of the present disclosure Figure 8A and Figure 8B FIG. 2 is a cross-sectional view of the sensor layer 200 taken along line II′ shown in FIG.
[0191] refer to Figure 8A 、 Figure 8B and Figure 9 , the first electrode 210 may include a first sensing pattern 210-sp and a first bridge pattern 210-bp. The first sensing pattern 210-sp and the first bridge pattern 210-bp may be electrically connected to each other through a first contact portion CNa. The second electrode 220 may be arranged at the same layer as the layer of the first sensing pattern 210-sp (for example, in the same layer or on the same layer). For example, the first sensing patterns 210-sp may be spaced apart from each other and the second electrode 220 may be interposed therebetween. The first bridge pattern 210-bp may be arranged at a different layer (for example, in a different layer or on a different layer) than the layer at which the second electrode 220 is arranged (for example, in or on which). The first bridge pattern 210-bp may be insulated from the second electrode 220 and may cross the second electrode 220.
[0192] The third electrode 230 may be provided at the same layer as the first bridge pattern 210-bp (e.g., in the same layer or on the same layer). An opening may be defined in the third electrode 230 to surround the first bridge pattern 210-bp (e.g., around the periphery of the first bridge pattern 210-bp). The third electrode 230 may overlap the first sensing pattern 210-sp. Thus, a coupling capacitance may be defined between the first electrode 210 and the third electrode 230.
[0193] In an embodiment of the present disclosure, the first conductive layer 202SU may include a first bridge pattern 210 -bp and a third electrode 230 . The second conductive layer 204SU may include a first sensing pattern 210 -sp and a second electrode 220 .
[0194] In an embodiment of the present disclosure, the first conductive layer 202SU may further include a dummy pattern DMP. Since the dummy pattern DMP is provided in an empty space, the probability that a specific pattern will be visually recognized due to reflection of external light may be reduced. In other words, an electronic device 1000 (e.g., referring to FIG. 1 ) in which visibility according to reflection of external light is improved may be provided. Figure 1A Each of the dummy patterns DMP may be electrically floating or electrically grounded. In an embodiment of the present disclosure, the dummy pattern DMP may be omitted as needed or desired.
[0195] refer to Figure 8A and Figure 8B , in the second conductive layer 204SU in one sensing unit SU, the area occupied by the components included in the first electrode 210 and the second electrode 220 may be larger than the area occupied by the components included in the third electrode 230. Figure 4 ) can increase the change in capacitance as the distance decreases. Figure 4 ) components can be used with the electronic device 1000 (e.g., reference Figure 1A ) is provided in a relatively large area in a layer adjacent to the surface of the ). Therefore, the touch performance can be improved.
[0196] According to an embodiment of the present disclosure, the sensor layer 200 may not include an auxiliary electrode (hereinafter, referred to as a pen sensing electrode) overlapping with the second electrode 220. The pen sensing electrode may be included in the lower sensor layer 300 (eg, referring to FIG. 20). Figure 5 )middle.
[0197] The coupling capacitance between the first electrode 210 and the pen sensing electrode may cause noise in a certain state. Figure 1A ) is not shared with the ground of the object providing input, it may cause a low ground quality (LGM) state in which the electronic device 1000 does not have a sufficient ground state. The low ground quality state may correspond to a state in which a water drop touch occurs or a state in which the touch is controlled when the electronic device 1000 is placed on a table. In this case, charges that may have to escape to the ground may be reintroduced into the second electrode 220 through the coupling capacitance between the first electrode 210 and the pen sensing electrode and the coupling capacitance between the pen sensing electrode and the second electrode 220. The reintroduced charges may cause degradation of touch performance.
[0198] According to an embodiment of the present disclosure, since the pen sensing electrode is spaced apart from the first electrode 210, the second electrode 220, and the third electrode 230, the coupling capacitance between the pen sensing electrode and each of the first electrode 210, the second electrode 220, and the third electrode 230 can be reduced. Therefore, the phenomenon in which charges that may have to escape to the ground are reintroduced into the second electrode 220 via the pen sensing electrode can be reduced or eliminated. Therefore, the touch performance of the electronic device 1000 can be improved.
[0199] In addition, because the pen sensing electrode is not included in the sensor layer 200, the degree of freedom in designing the first electrode 210, the second electrode 220, and the third electrode 230 can be improved. For example, the gap between the first electrode 210 and the second electrode 220 can be increased. When the capacitance between the first electrode 210 and the second electrode 220 decreases due to the increase in the gap between the first electrode 210 and the second electrode 220, the temperature characteristics of the sensor layer 200 can be improved. For example, the capacitance can have a value that varies according to temperature. In other words, when the temperature characteristics are improved, the dielectric constant can vary according to temperature, and the probability of ghost touch, which is recognized as a touch even when no touch action occurs, can be reduced. As another example, the area of the first electrode 210 and the second electrode 220 can be increased. In this case, the sensitivity to external touch can be improved.
[0200] Figure 10A yes Figure 8A An enlarged plan view of area AA' is shown in FIG. Figure 10B yes Figure 8B An enlarged plan view of area BB' is shown in FIG.
[0201] refer to Figure 8A 、 Figure 8B 、 Figure 10A and Figure 10B , each of the first electrode 210, the second electrode 220, the third electrode 230 and the dummy pattern DMP may have a mesh structure. The mesh structure may include a plurality of mesh lines. Each of the plurality of mesh lines may have a suitable shape extending in an appropriate direction (e.g., a specific or predetermined direction). The plurality of mesh lines may be connected to each other. The mesh lines may have various suitable shapes, such as straight lines, lines with protrusions and / or uneven lines. An opening without a mesh structure may be defined (e.g., may be provided or formed) in each of the first electrode 210, the second electrode 220, the third electrode 230 and the dummy pattern DMP.
[0202] Figure 10A and Figure 10BAn example is shown in which the mesh structure includes mesh lines extending in a first crossing direction CDR1 crossing the first direction DR1 and the second direction DR2 and mesh lines extending in a second crossing direction CDR2 crossing the first crossing direction CDR1. However, the extending directions of the mesh lines constituting the mesh structure are not particularly limited to Figure 10A and Figure 10B . For example, the mesh structure may include only mesh lines extending in the first direction DR1 and the second direction DR2, or may include mesh lines extending in the first direction DR1, the second direction DR2, the first cross direction CDR1, and the second cross direction CDR2. In other words, the mesh structure may be variously modified as needed or desired.
[0203] Figure 11A is a cross-sectional view of a display panel DP according to an embodiment of the present disclosure.
[0204] refer to Figure 6A and Figure 11A The display layer 100 may include a base layer 110 , a circuit layer 120 disposed on the base layer 110 , a light emitting element layer 130 disposed on the circuit layer 120 , and an encapsulation layer 140 disposed on the light emitting element layer 130 .
[0205] The encapsulation layer 140 may include a first encapsulation layer 141, a second encapsulation layer 142, and a third encapsulation layer 143. The first encapsulation layer 141 and the third encapsulation layer 143 may be inorganic layers, and the second encapsulation layer 142 may be an organic layer. For example, the second encapsulation layer 142 may be formed of a monomer and may be a layer that provides a flat or substantially flat surface. The upper surface 100US of the display layer 100 may correspond to the upper surface of the encapsulation layer 140.
[0206] The sensor layer 200 may be provided on the upper surface 100US of the display layer 100. The sensor layer 200 may be used to sense the first input 2000 (eg, reference Figure 5 ) coordinates. The lower sensor layer 300 may be provided below the upper surface 100US of the display layer 100. The lower sensor layer 300 together with the sensor layer 200 may be used to sense the second input 3000 (eg, reference Figure 5 ) coordinates.
[0207] The lower sensor layer 300 may include a plurality of pen sensing electrodes 310. In an embodiment of the present disclosure, the pen sensing electrodes 310 may be disposed on the lower surface of the base layer 110. For example, the lower surface of the base layer 110 may have a concave shape corresponding to the arrangement of the pen sensing electrodes 310.
[0208] According to an embodiment of the present disclosure, the pen sensing electrode 310 may not be included in the sensor layer 200. In other words, the pen sensing electrode 310 may be spaced apart from the first electrode 210, the second electrode 220, and the third electrode 230 by a gap greater than or equal to the thickness of the intermediate insulating layer 203. Therefore, the coupling capacitance between the pen sensing electrode 310 and each of the first electrode 210, the second electrode 220, and the third electrode 230 can be reduced. As a result, the phenomenon that charges that may have to escape to the ground are reintroduced into the second electrode 220 via the pen sensing electrode 310 can be reduced or eliminated. Therefore, the electronic device 1000 (for example, referring to FIG. 1 ) can be improved. Figure 1A ) touch performance.
[0209] The peripheral region 200NA of the sensor layer 200 may include a trace region 200TR in which a plurality of traces 200t electrically connected to the first electrode 210, the second electrode 220, and the third electrode 230 are provided, and an edge region 200EA adjacent to the trace region 200TR. For example, the edge region 200EA may be spaced apart from the sensing region 200A with the trace region 200TR therebetween. The trace 200t may include the trace region 200t described above. Figure 7A A first trace 210t, a second trace 220t, a first auxiliary trace 230rt1, and a second auxiliary trace 230rt2 are depicted.
[0210] In an embodiment of the present disclosure, the pen sensing electrode 310 may overlap with the sensing area 200A. As another example, the pen sensing electrode 310 may overlap with the sensing area 200A and the trace area 200TR. As another example, the pen sensing electrode 310 may overlap with the sensing area 200A, the trace area 200TR, and the edge area 200EA.
[0211] In an embodiment of the present disclosure, the pen sensing electrode 310 can be disposed below the upper surface 100US of the display layer 100. Therefore, the area in which the pen sensing electrode 310 is disposed is not limited to the sensing area 200A or the display area 100A. As another example, the area in which the pen sensing electrode 310 is disposed can be limited to the area in which the flat or substantially flat surface provided by the second encapsulation layer 142 is disposed. Therefore, the pen sensing electrode 310 can extend not only to the sensing area 200A but also to the trace area 200TR and the edge area 200EA. In this case, the area that can be sensed by the pen sensing electrode 310 can be expanded. Therefore, the sensing performance using the pen sensing electrode 310 can be improved.
[0212] Figure 11B is a cross-sectional view of a display panel DPa according to an embodiment of the present disclosure. Figure 11B In the above reference Figure 11AComponents that are identical or substantially identical to those described may be denoted by the same reference numerals, and thus, redundant descriptions thereof may not be repeated.
[0213] refer to Figure 6A and Figure 11B , the base layer 110 may include a first sub base layer 111 and a second sub base layer 112 disposed on the first sub base layer 111 .
[0214] In an embodiment of the present disclosure, the lower sensor layer 300a may be disposed between the first and second sub-base layers 111 and 112. In other words, the pen sensing electrode 310 included in the lower sensor layer 300a may be disposed between the first and second sub-base layers 111 and 112.
[0215] According to an embodiment of the present disclosure, the pen sensing electrode 310 may be included in the base layer 110. In other words, the pen sensing electrode 310 may be spaced apart from the first electrode 210, the second electrode 220, and the third electrode 230 by a gap greater than or equal to the thickness of the intermediate insulating layer 203. Therefore, the coupling capacitance between the pen sensing electrode 310 and each of the first electrode 210, the second electrode 220, and the third electrode 230 may be reduced. As a result, the phenomenon that charges that may have to escape to the ground are reintroduced into the second electrode 220 via the pen sensing electrode 310 may be reduced or eliminated. Therefore, the electronic device 1000 (for example, referring to FIG. 1 ) may be improved. Figure 1A ) touch performance.
[0216] Figure 11C : is a cross-sectional view of a display panel DPb according to an embodiment of the present disclosure. Figure 11C In the above reference Figure 11A Components that are identical or substantially identical to those described may be denoted by the same reference numerals, and thus, redundant descriptions thereof may not be repeated.
[0217] refer to Figure 6A and Figure 11C , the lower sensor layer 300b may be included in the circuit layer 120. However, the present disclosure is not limited thereto, and the lower sensor layer 300b may be implemented together with or within at least one of the layers disposed below the upper surface 100US of the display layer 100. For example, the lower sensor layer 300b may be included in the light emitting element layer 130, or may be included in the encapsulation layer 140.
[0218] The pen sensing electrode 310 included in the lower sensor layer 300b can be spaced apart from the first electrode 210, the second electrode 220, and the third electrode 230 by a gap greater than or equal to the thickness of the intermediate insulating layer 203. Therefore, the coupling capacitance between the pen sensing electrode 310 and each of the first electrode 210, the second electrode 220, and the third electrode 230 can be reduced. As a result, the phenomenon that charges that may have to escape to the ground are reintroduced into the second electrode 220 via the pen sensing electrode 310 can be reduced or eliminated. Therefore, the electronic device 1000 (for example, referring to FIG. 1 ) can be improved. Figure 1A ) touch performance.
[0219] As mentioned above Figure 11A 、 Figure 11B and Figure 11C As described, the pen sensing electrode 310 may be disposed in a defined emission area PXA (eg, referring to Figure 6A ) below the light emitting element 100PE. Therefore, the degree of freedom in designing the shape of the pen sensing electrode 310 can be further improved. For example, each of the pen sensing electrodes 310 can have a shape as described above. Figure 10A and Figure 10B The described mesh structure defines a plurality of openings, or may have a solid structure that does not define a plurality of openings therein.
[0220] Figure 12A is a plan view of the lower sensor layer 300 according to an embodiment of the present disclosure.
[0221] refer to Figure 7A 、 Figure 11A and Figure 12A , the lower sensor layer 300 may include a plurality of pen sensing electrodes 310. Each of the pen sensing electrodes 310 may extend in a direction intersecting the third electrode 230. For example, each of the third electrodes 230 may extend in the second direction DR2, and each of the pen sensing electrodes 310 may extend in the first direction DR1. The pen sensing electrodes 310 may be arranged along the second direction DR2 so as to be spaced apart from each other.
[0222] According to an embodiment of the present disclosure, the lower sensor layer 300 may further include a plurality of auxiliary electrodes 320 disposed adjacent to the pen sensing electrode 310. Each of the auxiliary electrodes 320 may extend in the first direction DR1 and may be arranged along the second direction DR2 so as to be spaced apart from each other.
[0223] In an embodiment of the present disclosure, the pen sensing electrode 310 and the auxiliary electrode 320 may be provided at the same layer as each other (e.g., in the same layer or on the same layer). When viewed from above a plane (e.g., in a plan view), the pen sensing electrode 310 and the auxiliary electrode 320 may not overlap each other.
[0224] The lower sensor layer 300 may include a plurality of traces 310 t electrically connected to the pen sensing electrodes 310 and auxiliary traces 320 t electrically connected to the auxiliary electrodes 320 .
[0225] In an embodiment of the present disclosure, routing directions of the traces 310 t with respect to the pen sensing electrodes 310 may be identical to each other. Figure 12A An example is shown in which the trace 310 t is connected to the right end of the pen sensing electrode 310 in a one-to-one correspondence and the auxiliary trace 320 t is connected to the left end of the auxiliary electrode 320 .
[0226] Because the lower sensor layer 300 can be disposed below the upper surface 100US of the display layer 100 according to an embodiment of the present disclosure, the degree of freedom in spatial design can be improved. For example, while the space in which the traces 200t of the sensor layer 200 are disposed is limited to the trace region 200TR, the space in which the traces 310t of the lower sensor layer 300 are disposed can be utilized up to the edge region 200EA. Therefore, the traces 310t can be disposed only on one side of the pen sensing electrode 310, rather than being disposed on both the left and right sides of the pen sensing electrode 310. In this case, coordinate distortion caused by changes in the routing direction of the traces 310t can be prevented or reduced.
[0227] Figure 12B is a plan view of the lower sensor layer 300-1 according to an embodiment of the present disclosure. Figure 12B In the above reference Figure 12A Components that are identical or substantially identical to those described may be denoted by the same reference numerals, and thus, redundant descriptions thereof may not be repeated.
[0228] refer to Figure 7A 、 Figure 11A and Figure 12B The lower sensor layer 300-1 may include a plurality of pen sensing electrodes 310 and a plurality of auxiliary electrodes 320a. The pen sensing electrodes 310 and the auxiliary electrodes 320a may be provided at different layers (e.g., in or on different layers) and may be insulated from each other. When viewed from above (e.g., in a plan view), the pen sensing electrodes 310 and the auxiliary electrodes 320a may overlap each other.
[0229] Figure 13 is a plan view of the lower sensor layer 300 - 2 according to an embodiment of the present disclosure.
[0230] refer to Figure 13The lower sensor layer 300-2 may include a plurality of pen sensing electrodes 311, 312, and 313. The pen sensing electrodes 311, 312, and 313 may include a first pen sensing electrode 311, a second pen sensing electrode 312, and a third pen sensing electrode 313. The first pen sensing electrode 311, the second pen sensing electrode 312, and the third pen sensing electrode 313 may be sequentially arranged along the second direction DR2 or in a direction opposite to the second direction DR2.
[0231] In an embodiment of the present disclosure, the wiring direction of the first pen sensing electrode 311 may be the same as the wiring direction of the third pen sensing electrode 313, and the wiring direction of the second pen sensing electrode 312 may be different from the wiring direction of the first pen sensing electrode 311. For example, the lower sensor layer 300-2 may further include a first direction trace 311t disposed on the right side of the pen sensing electrodes 311, 312, and 313, and a second direction trace 312t disposed on the left side of the pen sensing electrodes 311, 312, and 313.
[0232] In an embodiment of the present disclosure, the second pen sensing electrode 312 may function as an auxiliary electrode for the first pen sensing electrode 311. The first pen sensing electrode 311 and the third pen sensing electrode 313 may function as auxiliary electrodes for the second pen sensing electrode 312. Therefore, the lower sensor layer 300-2 may not include auxiliary electrodes.
[0233] Figure 14 is a plan view of a lower sensor layer 300 - 3 according to an embodiment of the present disclosure.
[0234] refer to Figure 14 , the lower sensor layer 300 - 3 may include a plurality of pen sensing electrodes 311 a and 312 a . The pen sensing electrodes 311 a and 312 a may include a first pen sensing electrode 311 a and a second pen sensing electrode 312 a .
[0235] The first pen sensing electrode 311a may include a first electrode portion 311b1, a second electrode portion 311b2, and a first bridge portion 311br connecting the first electrode portion 311b1 and the second electrode portion 311b2. The second pen sensing electrode 312a may include a third electrode portion 312b1, a fourth electrode portion 312b2, and a second bridge portion 312br connecting the third electrode portion 312b1 and the fourth electrode portion 312b2.
[0236] When viewed from above a plane (e.g., in a plan view), the first electrode portion 311b1 and the third electrode portion 312b1 may be spaced apart from each other in the first direction DR1, and the first electrode portion 311b1 and the fourth electrode portion 312b2 may be spaced apart from each other in the second direction DR2. The third electrode portion 312b1 and the second electrode portion 311b2 may be spaced apart from each other in the second direction DR2, and the fourth electrode portion 312b2 and the second electrode portion 311b2 may be spaced apart from each other in the first direction DR1.
[0237] The lower sensor layer 300-3 may also include a first direction trace 311ta disposed on the left side of the pen sensing electrodes 311a and 312a and a second direction trace 312ta disposed on the right side of the pen sensing electrodes 311a and 312a. The first electrode portion 311b1 may be connected to one corresponding first direction trace 311ta, and the third electrode portion 312b1 may be connected to one corresponding second direction trace 312ta.
[0238] In an embodiment of the present disclosure, the second pen sensing electrode 312a may function as an auxiliary electrode for the first pen sensing electrode 311a. For example, the first electrode portion 311b1 and the fourth electrode portion 312b2 may function as auxiliary electrodes for each other, and the second electrode portion 311b2 and the third electrode portion 312b1 may function as auxiliary electrodes for each other. Therefore, the lower sensor layer 300-3 may not include auxiliary electrodes.
[0239] Figure 15 is a plan view illustrating some components of the sensor layer 200 and some components of the lower sensor layer 300 - 4 according to an embodiment of the present disclosure.
[0240] refer to Figure 7A and Figure 15 , the plurality of second electrodes 220 may be arranged along the second direction DR2 so as to be spaced apart from each other. In addition, the plurality of pen sensing electrodes 310 may also be arranged along the second direction DR2 so as to be spaced apart from each other.
[0241] In an embodiment of the present disclosure, the number of pen sensing electrodes 310 may be greater than or equal to the number of second electrodes 220. For example, the number of pen sensing electrodes 310 may be equal to the number of second electrodes 220. In this case, the positions of the pen sensing electrodes 310 may be aligned with the positions of the second electrodes 220. Therefore, when viewed from above a plane (for example, in a plan view), the pen sensing electrodes 310 and the second electrodes 220 may be aligned with each other. In an embodiment of the present disclosure, the length of the pen sensing electrode 310 may be greater than or equal to the length of the second electrode 220.
[0242] In an embodiment of the present disclosure, after sensing the second input 3000 (eg, reference Figure 5 ), the sensor driver 200C may calculate the coordinates based on the signal received from the first electrode 210 and the signal received from the pen sensing electrode 310. As another example, because the pen sensing electrode 310 and the second electrode 220 are aligned with each other, the sensor driver 200C may calculate the coordinates using the signal received from the first electrode 210, the signal received from the pen sensing electrode 310, and the signal received from the second electrode 220.
[0243] Figure 16 is a plan view illustrating some components of the sensor layer 200 and some components of the lower sensor layer 300 - 5 according to an embodiment of the present disclosure.
[0244] refer to Figure 7A and Figure 16 , the plurality of second electrodes 220 may be arranged along the second direction DR2 so as to be spaced apart from each other. In addition, the plurality of pen sensing electrodes 310a may also be arranged along the second direction DR2 so as to be spaced apart from each other.
[0245] In an embodiment of the present disclosure, the number of the pen sensing electrodes 310a may be greater than or equal to the number of the second electrodes 220. For example, the arrangement of the pen sensing electrodes 310a may be designed independently of the arrangement of the second electrodes 220.
[0246] In an embodiment of the present disclosure, after sensing the second input 3000 (eg, reference Figure 5 ), the sensor driver 200C may calculate the coordinates based on the signal received from the first electrode 210 and the signal received from the pen sensing electrode 310a.
[0247] Figure 17 200C is a diagram illustrating the operation of the sensor driver 200C according to the embodiment of the present disclosure.
[0248] refer to Figure 5 and Figure 17 , the sensor driver 200C may be selectively driven in one of a first operation mode DMD1 , a second operation mode DMD2 , and a third operation mode DMD3 .
[0249] The first operating mode DMD1 may be referred to as a touch and pen standby mode, the second operating mode DMD2 may be referred to as a touch active and pen standby mode, and the third operating mode DMD3 may be referred to as a pen active mode. The first operating mode DMD1 may be a mode in which the sensor driver 200C waits for the first input 2000 and the second input 3000. The second operating mode DMD2 may be a mode in which the sensor driver 200C senses the first input 2000 and waits for the second input 3000. The third operating mode DMD3 may be a mode in which the sensor driver 200C senses the second input 3000.
[0250] In an embodiment of the present disclosure, the sensor driver 200C may be initially driven in the first operating mode DMD1. When a first input 2000 is sensed in the first operating mode DMD1, the sensor driver 200C may be switched (e.g., changed) to the second operating mode DMD2. As another example, when a second input 3000 is sensed in the first operating mode DMD1, the sensor driver 200C may be switched (e.g., changed) to the third operating mode DMD3.
[0251] In an embodiment of the present disclosure, when the second input 3000 is sensed in the second operating mode DMD2, the sensor driver 200C may switch to the third operating mode DMD3. When the first input 2000 is released (e.g., not sensed) in the second operating mode DMD2, the sensor driver 200C may switch to the first operating mode DMD1. When the second input 3000 is released (e.g., not sensed) in the third operating mode DMD3, the sensor driver 200C may switch to the first operating mode DMD1.
[0252] Figure 18 200C is a diagram illustrating the operation of the sensor driver 200C according to the embodiment of the present disclosure.
[0253] refer to Figure 5 、 Figure 17 and Figure 18 , operations in the first operation mode DMD1 , the second operation mode DMD2 , and the third operation mode DMD3 are shown in order of time (t).
[0254] In the first operation mode DMD1, the sensor driver 200C may be repeatedly driven in the second mode MD2-d and the first mode MD1-d. During the second mode MD2-d, the sensor layer 200 may be scan-driven to detect the second input 3000. During the first mode MD1-d, the sensor layer 200 may be scan-driven to detect the first input 2000. Figure 18An example is shown in which the sensor driver 200C operates in the first mode MD1 - d successively after the second mode MD2 - d , but the order is not limited thereto.
[0255] In the second operating mode DMD2, the sensor driver 200C may be repeatedly driven in the second mode MD2-d and the first mode MD1. During the second mode MD2-d, the sensor layer 200 and the lower sensor layer 300 may be scan-driven to detect the second input 3000. During the first mode MD1, the sensor layer 200 may be scan-driven to detect the coordinates of the first input 2000.
[0256] In the third operating mode DMD3, the sensor driver 200C may be driven in the second mode MD2. During the second mode MD2, the sensor layer 200 and the lower sensor layer 300 may be scan-driven to detect the coordinates of 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 (e.g., not sensed).
[0257] Figure 19 is a view showing a first mode of embodiment according to the present disclosure.
[0258] refer to Figure 5 、 Figure 18 and Figure 19 , the first mode MD1 - d of the first operation mode DMD1 and the first mode MD1 of the second operation mode DMD2 may include a mutual capacitance detection mode. Figure 19 1 is a diagram illustrating a mutual capacitance detection mode of a first mode MD1 - d of a first operation mode DMD1 and a first mode MD1 of a second operation mode DMD2 .
[0259] In the mutual capacitance detection mode, the sensor driver 200C may sequentially provide a transmission signal TX to the first electrode 210, and may detect the coordinates of the first input 2000 using a reception signal RX detected by the second electrode 220. For example, the sensor driver 200C may sense a change in mutual capacitance between the first electrode 210 and the second electrode 220, and may calculate the input coordinates.
[0260] Figure 19 An example is shown in which a transmission signal TX is provided to one first electrode 210 and a reception signal RX is output from the second electrode 220. The sensor driver 200C can sense a change in capacitance between each of the first electrode 210 and the second electrode 220 and detect input coordinates for the first input 2000.
[0261] In an embodiment of the present disclosure, at least one of the first mode MD1-d of the first operating mode DMD1 and the first mode MD1 of the second operating mode DMD2 may further include a self-capacitance detection mode. In the self-capacitance detection mode, the sensor driver 200C may calculate input coordinates by outputting a drive signal to the first electrode 210 and the second electrode 220 and sensing a change in capacitance of each of the first electrode 210 and the second electrode 220. In the self-capacitance detection mode, the third electrode 230 may be grounded, and a signal identical to that provided to an adjacent trace may be provided to the guard line 200tg. Thus, parasitic capacitance that may form between traces may be reduced or eliminated by the guard line 200tg.
[0262] In the first mode MD1 - d of the first operating mode DMD1 and the first mode MD1 of the second operating mode DMD2 , the third electrode 230 and the protection line 200tg may all be grounded.
[0263] Figure 20 is a view showing a second mode according to an embodiment of the present disclosure. Figure 21A is a graph depicting a waveform of the first signal SG1 according to an embodiment of the present disclosure. Figure 21B is a graph depicting a waveform of the second signal SG2 according to an embodiment of the present disclosure.
[0264] refer to Figure 20 、 Figure 21A and Figure 21B The second mode MD2 may include a charging driving mode. The charging driving mode may include a searching charging driving mode and a tracking charging driving mode.
[0265] The search charge driving mode may be a driving mode before the position of the pen PN is sensed. Therefore, the first signal SG1 or the second signal SG2 may be provided to all channels included in the sensor layer 200. In other words, in the search charge driving mode, the entire area of the sensor layer 200 may be scanned. When the pen PN (e.g., reference PN) is sensed in the search charge driving mode, Figure 5 ), the sensor layer 200 may be driven in the tracking charge driving mode. For example, in the tracking charge driving mode, the sensor driver 200C may sequentially output the first signal SG1 and the second signal SG2 to an area overlapping with a point where the pen PN is sensed, rather than to the entire sensor layer 200.
[0266] In the charging driving mode, the sensor driver 200C may apply a first signal SG1 to one pad and a second signal SG2 to another pad. The second signal SG2 may be an inverse signal of the first signal SG1. For example, the first signal SG1 may be a sinusoidal signal.
[0267] Because the first signal SG1 and the second signal SG2 are applied to at least two pads, the current RFS can have a current path that flows through one pad to the other pad. In addition, because the first signal SG1 and the second signal SG2 are sinusoidal signals with an anti-phase relationship, the direction of the current RFS can change periodically. In an embodiment of the present disclosure, the first signal SG1 and the second signal SG2 can be square wave signals with an anti-phase relationship.
[0268] When the first signal SG1 and the second signal SG2 have an anti-phase relationship, the first signal SG1 is applied to the display layer 100 (eg, reference Figure 4 ) can be offset by the noise caused by the second signal SG2. Therefore, a flicker phenomenon may not occur in the display layer 100, and the display quality of the display layer 100 may be improved.
[0269] In an embodiment of the present disclosure, the first signal SG1 may be a sinusoidal signal. However, the present disclosure is not limited thereto, and the first signal SG1 may be a square wave signal. The second signal SG2 may have a constant voltage (e.g., a specific or predetermined constant voltage). For example, the second signal SG2 may be a ground voltage. In other words, the pad to which the second signal SG2 is applied may be considered to be grounded. Even in this case, the current RFS may flow from one pad to another. In addition, because the first signal SG1 is a sinusoidal signal or a square wave signal, the direction of the current RFS may change periodically even if the other pad is grounded.
[0270] refer to Figure 20 , a first signal SG1 is provided to a pad connected to a first auxiliary trace 230rt1, and a second signal SG2 is provided to a pad connected to a second auxiliary trace 230rt2. A current RFS can flow along a current path defined by a first auxiliary trace 230rt1, a third electrode 230 connected to the first auxiliary trace 230rt1, and a portion of the second auxiliary trace 230rt2. The current path can have a coil shape. Therefore, in the second charging drive mode, the resonant circuit of the pen PN can be charged by the magnetic field formed by the current path.
[0271] According to some embodiments of the present disclosure, a current path having a loop coil pattern may be implemented by components included in the sensor layer 200. Therefore, the electronic device 1000 (eg, referring to Figure 1A ) The pen PN can be charged using the sensor layer 200. Therefore, there is no need to separately add a component having a coil for charging the pen PN, so that the increase in thickness and weight of the electronic device 1000 and the reduction in flexibility of the electronic device 1000 due to the addition of the component may not occur.
[0272] In the charging drive mode, the first electrode 210, the second electrode 220, and the protection line 200tg may be grounded or electrically floating, or may receive a constant or substantially constant voltage. More specifically, the first electrode 210, the second electrode 220, and the protection line 200tg may be floating. In this case, the current RFS may not flow to the first electrode 210, the second electrode 220, and the protection line 200tg.
[0273] Figure 22A is a view showing a second mode according to an embodiment of the present disclosure. Figure 22B is a view showing a second mode according to an embodiment of the present disclosure. Figure 23 is a view illustrating a second mode based on the sensor layer 200 and the lower sensor layer 300 according to an embodiment of the present disclosure.
[0274] refer to Figure 22A 、 Figure 22B and Figure 23 , the second mode may include a charging driving mode and a pen sensing driving mode. Figure 22A 、 Figure 22B and Figure 23 is a diagram showing a pen sensing driving mode. Figure 23 , there is shown one sensing unit SU through which the first sensing current Ia, the second sensing current Ib, the third sensing current Ic, and the fourth sensing current Id generated by the pen PN flow.
[0275] In an embodiment of the present disclosure, in the pen sensing driving mode, the sensor driver 200C may receive a first reception signal PRX1 from the first electrode 210 and may receive a second reception signal PRX2 from the pen sensing electrode 310 .
[0276] The wiring directions of one electrode and another electrode overlapping each other in each of the sensor layer 200 and the lower sensor layer 300 may be different from each other. For example, the wiring direction of the first electrode 210 and the wiring direction of the third electrode 230 may be different from each other. In addition, the wiring direction of the pen sensing electrode 310 and the wiring direction of the auxiliary electrode 320 may be different from each other. For example, in Figure 23, the first electrode 210 and the first trace 210t may be connected on the lower side of the sensing unit SU, and the third electrode 230 and the second auxiliary trace 230rt2 may be connected on the upper side of the sensing unit SU. The pen sensing electrode 310 and the trace 310t may be connected on the right side of the sensing unit SU, and the auxiliary electrode 320 and the auxiliary trace 320t may be connected on the left side of the sensing unit SU.
[0277] The RLC resonant circuit of the pen PN can emit a magnetic field having a resonant frequency while discharging the accumulated charge. Due to the magnetic field provided by the pen PN, a first induced current Ia can be generated in the first electrode 210, and a second induced current Ib can be generated in the pen sensing electrode 310. In addition, a third induced current Ic can be generated in the third electrode 230, and a fourth induced current Id can be generated in the auxiliary electrode 320.
[0278] A first coupling capacitor Ccp1 may be formed between the third electrode 230 and the first electrode 210, and a second coupling capacitor Ccp2 may be formed between the auxiliary electrode 320 and the pen sensing electrode 310. The third sensing current Ic may be transmitted to the first electrode 210 through the first coupling capacitor Ccp1, and the fourth sensing current Id may be transmitted to the pen sensing electrode 310 through the second coupling capacitor Ccp2.
[0279] The sensor driver 200C may receive a first reception signal PRX1a based on the first sensing current Ia and the third sensing current Ic from the first electrode 210, and may receive a second reception signal PRX2a based on the second sensing current Ib and the fourth sensing current Id from the pen sensing electrode 310. The sensor driver 200C may detect input coordinates of the pen PN based on the first reception signal PRX1a and the second reception signal PRX2a.
[0280] When the sensor driver 200C receives the first reception signal PRX1a from the first electrode 210 and the second reception signal PRX2a from the pen sensing electrode 310, the first ends of the third electrode 230 and the auxiliary electrode 320 may all float. Therefore, through the coupling between the first electrode 210 and the third electrode 230 and the coupling between the pen sensing electrode 310 and the auxiliary electrode 320, the compensation of the sensing signal can be maximized or improved.
[0281] Furthermore, the second ends of the third electrode 230 and the auxiliary electrode 320 can be grounded or floating. Therefore, through coupling between the first electrode 210 and the third electrode 230, and between the pen sensing electrode 310 and the auxiliary electrode 320, the third sensing current Ic and the fourth sensing current Id can be fully transmitted to the first electrode 210 and the pen sensing electrode 310. When the first and second ends of the third electrode 230 and the auxiliary electrode 320 are both floating, even if charge is applied to the third electrode 230 in the charging drive mode, the floating state prevents rapid changes in potential during the pen sensing operation. Therefore, noise caused by changes in the drive mode can be minimized or reduced.
[0282] According to an embodiment of the present disclosure, the sensor driver 200C may calculate the first input 2000 (eg, reference to the first electrode 210 and the second electrode 220) causing the change in capacitance. Figure 5 ), and the coordinates of the second input 3000 for the transmitted magnetic field can be calculated using the first electrode 210 and the pen sensing electrode 310.
[0283] Figure 24 is a view showing a second mode according to an embodiment of the present disclosure. Figure 25 is a view illustrating a second mode based on the sensor layer 200 and the lower sensor layer 300 according to an embodiment of the present disclosure.
[0284] refer to Figure 22B 、 Figure 24 and Figure 25 In the pen sensing driving mode, the sensor driver 200C may receive a first reception signal PRX1 from the first electrode 210 , may receive a second reception signal PRX2 from the pen sensing electrode 310 , and may receive a third reception signal PRX3 from the second electrode 220 .
[0285] The RLC resonant circuit of the pen PN can emit a magnetic field having a resonant frequency while discharging the accumulated charge. Due to the magnetic field provided by the pen PN, a first induced current Ia can be generated in the first electrode 210, and a second induced current Ib can be generated in the pen sensing electrode 310. Furthermore, a third induced current Ic can be generated in the third electrode 230, and a fourth induced current Id can be generated in the auxiliary electrode 320. Furthermore, a fifth induced current Ie can be generated in the second electrode 220.
[0286] According to an embodiment of the present disclosure, the second electrode 220 and the pen sensing electrode 310 may be aligned with each other. In this case, the sensor driver 200C may calculate the coordinates of the input for the pen PN by performing an operation on the third reception signal PRX3a based on the fifth sensing current Ie and the second reception signal PRX2a based on the second sensing current Ib and the fourth sensing current Id. Various appropriate methods may be applied to this operation, such as a method of adding the second reception signal PRX2a and the third reception signal PRX3a, a method of assigning a specific weight value to at least one of the second reception signal PRX2a and the third reception signal PRX3a and then adding them together, etc.
[0287] As described above, the sensor layer can be disposed on the upper surface of the display layer, and the lower sensor layer can be disposed below the upper surface of the display layer. The sensor layer may include first to third electrodes, and the lower sensor layer may include pen sensing electrodes. The sensor driver can use the first and second electrodes to calculate the coordinates of a first input causing a change in capacitance, and can use the first and pen sensing electrodes to calculate the coordinates of a second input transmitting a magnetic field. In this case, the pen sensing electrodes can be separated from the first to third electrodes by a certain gap or larger, thereby reducing the coupling capacitance between the pen sensing electrodes and each of the first to third electrodes. As a result, the phenomenon of charge that would otherwise escape to ground being reintroduced into the second electrode via the pen sensing electrodes can be reduced or eliminated. Therefore, the touch performance of the electronic device can be improved. Furthermore, because the pen sensing electrodes can be disposed in a separate layer rather than in the sensor layer, the degree of freedom in designing the shape of the pen sensing electrodes can be further improved.
[0288] The foregoing is an example of some embodiments of the present disclosure and should not be construed as limiting thereof. Although some embodiments have been described, it will be readily understood by those skilled in the art that various modifications may be made in the embodiments without departing from the spirit and scope of the present disclosure. It will be understood that the description of the features or aspects within each embodiment should generally be considered to be applicable to other similar features or aspects in other embodiments, unless otherwise described. Therefore, as will be apparent to those of ordinary skill in the art, unless otherwise specifically noted, the features, characteristics and / or elements described in conjunction with a particular embodiment may be used alone or in combination with the features, characteristics and / or elements described in conjunction with other embodiments. Therefore, it should be understood that the foregoing is an example of various exemplary embodiments and should not be construed as being limited to the specific embodiments disclosed herein, and that various modifications to the disclosed embodiments and other exemplary embodiments are intended to be included within the spirit and scope of the present disclosure as defined by the appended claims and their equivalents.
Claims
1. An electronic device comprising: Display layer; a sensor layer over the upper surface of the display layer; as well as a plurality of pen sensing electrodes below the upper surface of the display layer, Wherein, the sensor layer comprises: a plurality of first electrodes arranged along a first direction; a plurality of second electrodes arranged along a second direction crossing the first direction, the plurality of second electrodes crossing the plurality of first electrodes; and A plurality of third electrodes are arranged along the first direction and overlap with the plurality of first electrodes.
2. The electronic device according to claim 1, wherein Each of the plurality of pen sensing electrodes extends in the first direction, and the plurality of pen sensing electrodes are positioned along the second direction.
3. The electronic device according to claim 1, further comprising: A plurality of auxiliary electrodes are adjacent to the plurality of pen sensing electrodes.
4. The electronic device according to claim 3, wherein The plurality of pen sensing electrodes and the plurality of auxiliary electrodes are located at the same layer as each other.
5. The electronic device according to claim 3, wherein The plurality of pen sensing electrodes overlap the plurality of auxiliary electrodes in a plan view. The electronic device according to claim 1 , wherein: The plurality of pen sensing electrodes include a first pen sensing electrode, a second pen sensing electrode, and a third pen sensing electrode sequentially positioned along the second direction, and The wiring direction of the first sensing electrodes is the same as the wiring direction of the third sensing electrodes, and the wiring direction of the second sensing electrodes is different from the wiring direction of the first sensing electrodes.
7. The electronic device according to claim 1, wherein The plurality of pen sensing electrodes include a first pen sensing electrode and a second pen sensing electrode, The first sensing electrode includes a first electrode portion, a second electrode portion, and a first bridge portion connecting the first electrode portion and the second electrode portion. The second sensing electrode includes a third electrode portion, a fourth electrode portion, and a second bridge portion connecting the third electrode portion and the fourth electrode portion. wherein the first electrode portion and the third electrode portion are spaced apart from each other in the first direction, wherein the first electrode portion and the fourth electrode portion are spaced apart from each other in the second direction, wherein the third electrode portion and the second electrode portion are spaced apart from each other in the second direction, and Wherein, the fourth electrode portion and the second electrode portion are spaced apart from each other in the first direction.
8. The electronic device according to claim 1, wherein The number of the plurality of pen sensing electrodes is greater than or equal to the number of the plurality of second electrodes.
9. The electronic device according to claim 1, wherein The plurality of pen sensing electrodes are aligned with the plurality of second electrodes in a plan view.
10. The electronic device according to claim 1, wherein The display layer includes a base layer, a circuit layer on the base layer, a light emitting element layer on the circuit layer, and an encapsulation layer on the light emitting element layer, and Wherein, the upper surface of the display layer is the upper surface of the encapsulation layer.
11. The electronic device according to claim 10, wherein: The plurality of pen sensing electrodes are located on a lower surface of the base layer.
12. The electronic device according to claim 11, wherein The lower surface of the base layer has a concave shape corresponding to positions of the plurality of pen sensing electrodes.
13. The electronic device according to claim 10, wherein: The base layer includes a first sub-base layer and a second sub-base layer on the first sub-base layer, and The plurality of pen sensing electrodes are located between the first sub-base layer and the second sub-base layer.
14. The electronic device according to claim 10, wherein The plurality of pen sensing electrodes are located in the circuit layer.
15. The electronic device according to claim 1, further comprising: a plurality of traces electrically connected to the plurality of pen sensing electrodes in a one-to-one correspondence, Wherein, the routing directions of the plurality of traces are the same as each other.
16. The electronic device according to claim 1, wherein Each of the plurality of first electrodes, the plurality of second electrodes, and the plurality of third electrodes has a mesh structure having a plurality of openings, and The plurality of pen sensing electrodes have a solid structure, and the solid structure does not have a plurality of openings.
17. The electronic device according to claim 1, wherein The sensor layer further includes a plurality of traces electrically connected to the plurality of first electrodes, the plurality of second electrodes, and the plurality of third electrodes, wherein the sensor layer includes a sensing region in which the plurality of first electrodes, the plurality of second electrodes, and the plurality of third electrodes are located, and a peripheral region adjacent to the sensing region, wherein the peripheral area includes a trace area in which the plurality of traces are located and an edge area adjacent to the trace area, and The plurality of pen sensing electrodes overlap with the sensing area.
18. The electronic device according to claim 17, wherein: The plurality of pen sensing electrodes also overlap the trace area.
19. The electronic device according to claim 17, wherein: The plurality of pen sensing electrodes also overlap the trace area and the edge area.
20. The electronic device according to claim 1, further comprising: a sensor driver configured to drive the sensor layer and selectively operate in a first mode for sensing a touch input or in a second mode for sensing a pen input, Wherein, the second mode includes a pen sensing drive mode, and In which, in the pen sensing drive mode, the sensor driver is configured to receive a first reception signal based on a first sensing current flowing through each of the plurality of first electrodes, and to receive a second reception signal based on a second sensing current flowing through each of the plurality of pen sensing electrodes.
21. The electronic device according to claim 20, wherein In the pen sensing driving mode, the sensor driver is configured to additionally receive a third reception signal based on a third sense current flowing through each of the plurality of second electrodes.
22. The electronic device according to claim 20, wherein The plurality of third electrodes are configured to be grounded in the first mode, and The second mode further includes a charging driving mode, and the plurality of first electrodes and the plurality of second electrodes are configured to float in the charging driving mode.
23. An electronic device comprising: Display layer; a plurality of first electrodes arranged along a first direction on an upper surface of the display layer; a plurality of second electrodes arranged above the upper surface of the display layer along a second direction intersecting the first direction; a plurality of pen sensing electrodes arranged along the second direction below the upper surface of the display layer; as well as a sensor driver configured to drive the plurality of first electrodes, the plurality of second electrodes, and the plurality of pen sensing electrodes, and selectively operate in a first mode for sensing a touch input or in a second mode for sensing a pen input, Wherein, the second mode includes a pen sensing drive mode, and In which, in the pen sensing drive mode, the sensor driver is configured to receive a first reception signal based on a first sensing current flowing through each of the plurality of first electrodes, and to receive a second reception signal based on a second sensing current flowing through each of the plurality of pen sensing electrodes.
24. The electronic device according to claim 23, wherein In the pen sensing driving mode, the sensor driver is configured to additionally receive a third reception signal based on a third sense current flowing through each of the plurality of second electrodes.
25. The electronic device according to claim 23, further comprising: a plurality of third electrodes arranged along the first direction on the upper surface of the display layer, wherein the plurality of third electrodes are configured to be grounded in the first mode, Wherein, in the pen sensing driving mode, the first reception signal is a signal based on the first sensing current and an auxiliary sensing current flowing from the plurality of third electrodes toward the plurality of first electrodes, and The second mode further includes a charging driving mode, and the plurality of first electrodes and the plurality of second electrodes are configured to float in the charging driving mode.
26. The electronic device according to claim 23, further comprising: a plurality of auxiliary electrodes adjacent to the plurality of pen sensing electrodes, The plurality of pen sensing electrodes and the plurality of auxiliary electrodes are located at the same layer as each other, or the plurality of pen sensing electrodes overlap with the plurality of auxiliary electrodes in a plan view.
27. The electronic device according to claim 23, wherein The plurality of pen sensing electrodes include a first pen sensing electrode, a second pen sensing electrode, and a third pen sensing electrode sequentially positioned along the second direction, and The wiring direction of the first sensing electrodes is the same as the wiring direction of the third sensing electrodes, and the wiring direction of the second sensing electrodes is different from the wiring direction of the first sensing electrodes.
28. The electronic device according to claim 23, wherein The plurality of pen sensing electrodes include a first pen sensing electrode and a second pen sensing electrode, The first sensing electrode includes a first electrode portion, a second electrode portion, and a first bridge portion connecting the first electrode portion and the second electrode portion. The second sensing electrode includes a third electrode portion, a fourth electrode portion, and a second bridge portion connecting the third electrode portion and the fourth electrode portion. wherein the first electrode portion and the third electrode portion are spaced apart from each other in the first direction, wherein the first electrode portion and the fourth electrode portion are spaced apart from each other in the second direction, wherein the third electrode portion and the second electrode portion are spaced apart from each other in the second direction, and Wherein, the fourth electrode portion and the second electrode portion are spaced apart from each other in the first direction.
29. An electronic device comprising: Display layer; a plurality of first electrodes arranged along a first direction on an upper surface of the display layer; a plurality of second electrodes arranged above the upper surface of the display layer along a second direction intersecting the first direction; a plurality of third electrodes arranged along the first direction over the upper surface of the display layer and overlapping the plurality of first electrodes; a plurality of pen sensing electrodes arranged along the second direction below the upper surface of the display layer; as well as A sensor driver is configured to calculate coordinates of a first input causing a change in capacitance by using the plurality of first electrodes and the plurality of second electrodes, and calculate coordinates of a second input transmitting a magnetic field by using the plurality of first electrodes and the plurality of pen sensing electrodes.
30. The electronic device according to claim 29, wherein The plurality of third electrodes are configured to be grounded when the sensor driver operates in a first mode for sensing the coordinates for the first input, and Wherein, the plurality of first electrodes and the plurality of second electrodes are configured to float when the sensor driver operates in a charging driving mode for charging an input device configured to provide the second input.
31. The electronic device according to claim 29, wherein The electronic device is one of a television, a mobile phone, a tablet computer, a notebook computer, a car navigation unit, and a game console.
Citation Information
Patent Citations
Method and system for verifying parallelism between internal facets
KR1020240035795A