Hybrid display integratable antennas using touch sensor trace and edge discontinuity structures

A touch panel for a display may include a touch sensor with a plurality of electrode traces. A first portion of the plurality of electrode traces may form sensing lines configured to receive touch input. The touch sensor includes an edge dummy area between an edge of the touch sensor and an electrode trace of a remaining portion of the plurality of electrode traces. The edge dummy area may be located outside of the sensing lines. The touch panel may further include an antenna with a radiation structure and a ground structure. The radiation structure may be located within a routing traces area outside of the touch sensor. The ground structure may be located within the edge dummy area. The ground structure may include an electrode trace of the plurality of electrode traces located within the edge dummy area of the touch sensor.

TECHNICAL FIELD

Aspects of the disclosure pertain to radio frequency (RF) communications. Some aspects of the disclosure pertain to wireless communication devices. Some aspects of the disclosure pertain to antennas, and more specifically, to a hybrid display integratable antenna. Some aspects of the disclosure relate to an edge antenna integratable within a touch panel display.

BACKGROUND

As mobile and wireless communications continue to develop, touch screen devices have become increasingly popular as input devices. Wireless communication devices, such as mobile phones and tablets, ideally have an edge-to-edge bezel-less display. At the same time, the number of wireless communication protocols (e.g., Wi-Fi, 3G/4G/LTE/5G, FM, etc.) that need to be supported and the related antennas is increasing. Typically, antennas are hidden in the bezel surrounding the display. As touch screen displays of communication devices become closer to being bezel-less, implementing antennas within the communication device becomes more challenging.

DETAILED DESCRIPTION

The following description and the drawings sufficiently illustrate specific aspects of the disclosure to enable those skilled in the art to practice them. Other aspects of the disclosure may incorporate structural, logical, electrical, process, and other changes. Portions and features of some aspects of the present disclosure may be included in, or substituted for, those of other aspects of the present disclosure. Given the benefit of the present disclosure, persons skilled in the relevant technologies will be able to engineer suitable variations to implement principles of the aspects of the present disclosure in other types of communication systems. Various diverse aspects of the present disclosure may incorporate structural, logical, electrical, process, and other differences. Portions and features of some aspects of the present disclosure may be included in, or substituted for, those of other aspects of the present disclosure. Aspects of the disclosure set forth in the claims encompass all presently-known, and after-arising, equivalents of those claims.

FIG. 1illustrates a schematic side view diagram (in exaggerated dimension) of a stack of components of a touch panel display100in accordance with some aspects of the disclosure. Referring toFIG. 1, the touch panel display100can be a display of a computing device, such as a smart phone, a tablet, or another mobile device, and can include a touch panel110and a display panel120.

The touch panel110may include a cover glass112, a two-layer touch sensor114(e.g.,114X and114Y), a touch glass116disposed between the two touch sensor layers, and a top polarizer layer118. The touch sensor114can include receive (Rx) or sensing electrode traces in layer114X, and transmit (Tx) or driving electrode traces in layer114Y. A more detailed Bar Type diagram of the dual layer touch sensor is illustrated in reference toFIG. 2.

The display panel120, which is located under the touch panel110, can include a cover filter glass121, a color filter122, liquid crystal layer123, thin film transistor (TFT) layer124. TFT glass125, and a bottom polarizer layer126. These components of the display panel120are known, and thus for the sake of brevity their individual descriptions will not be provided here.

FIG. 2illustrates a schematic plan view diagrams of a portion of a touch panel display including touch sensor layers in accordance with some aspects of the disclosure. Referring toFIG. 2, the touch sensor200(which can be the same as the touch sensor114) can be based on Projected Capacitive Touch (PCT). More specifically, the touch sensor200can include electrode traces in layers202X and202Y (corresponding to layers114X and114Y). The electrode traces in corresponding layers can be used for electrode columns and rows. For example, the touch sensor200is made up of a matrix of Rx (or sense) electrode columns (or lines)204X-210X, and Tx (or drive) electrode rows (or lines)204Y-208Y of conductive material. In an example, the sense and drive lines can be layered on sheets of glass.

The drive electrode rows204Y-208Y are spaced apart from the sense electrode columns204X-210X. The drive electrode rows204Y-208Y can be used to generate an electric field, and the sense electrode columns204X-210X can receive the electric field. Overlapping portions of the drive electrode rows204Y-208Y and the sense electrode columns204X-210X form respective capacitors. When a conductive object, such as a user's finger or another contacting device (e.g., a stylus), comes into contact with the overlapping portions, the local electrostatic field becomes distorted at that point and grounds the respective capacitor. The variations of capacitance can be changed and measured at every overlapping portion of the matrix to trigger performing of touch-screen functionalities.

The sense electrode columns204X-210X and the drive electrode rows204Y-208Y can comprise indium tin oxide (ITO) transparent conductor, micro wire metal mesh, and/or one or more other materials as suitable for the intended purpose (e.g., other types of transparent conductors). The electrode columns and rows may be more generally known as electrode traces, and the terms columns and rows are not meant to be limiting. Further, the disclosure is not limited to PCT, but may be any touch panel technology as suitable for the intended purpose.

Referring toFIG. 2, the touch sensor200can further include sense electrode dummy areas (e.g.,214,216) located between the sense electrode columns204X-210X, as well as between an edge of the touch sensor200and a sense electrode column (e.g., dummy area216). Similarly, the drive electrode dummy areas (e.g.,220,222, and224) are located between the drive electrode rows204Y-208Y, as well as between an edge of the touch sensor200and a drive electrode row (e.g., dummy areas220and224). The sense electrode dummy areas and the drive electrode dummy areas are areas where there are electrode traces which are not part of the sense electrode columns204X-210X or the drive electrode rows204Y-208Y.

The distance between respective drive electrode rows204Y-208Y can be referred to as drive electrode row pitch218, and the distance between respective sense electrode columns204X-210X can be referred to as sense electrode column pitch212. The pitch (e.g.,212and218) can be dependent on a target diameter of the touching object (e.g., a finger, stylus, etc.). The pitch can be, for example, about 5 mm for a finger touch. For the purpose of this discussion, the areas between respective drive electrode rows (or between a drive electrode row and an edge of the touch sensor) and also between the sense electrode columns (or between a sense electrode column and an edge of the touch sensor) can be referred to as “dummy areas.” For example, there are sense electrode dummy areas between adjacent sense electrode columns204X-210X, and drive electrode dummy areas between adjacent drive electrode rows204Y-208Y.

The width of the drive electrode rows and the sense electrode columns can be based on the integrated circuit manufacturing requirements and/or tolerances, and can be, for example, approximately 1.6 mm. In this example, the width of the dummy areas can be, for example, about 3.4 mm. These widths are provided for exemplary purposes and the embodiments are not limited to these values.

In an example, the drive electrode rows204Y-208Y and the sense electrode columns204X-210X can be connected to routing traces230. The routing traces230can also include a global ground228, which can be a ground ring around the touch sensor200, or a partial ring (e.g., as illustrated inFIG. 2). In an example, the global ground ring228can be co-planar with the electrode traces in touch sensor layer202X or202Y. Areas around the touch sensor200, which can be used to place the routing traces can be referred to as routing traces areas. For example,FIG. 2illustrates routing traces areas226A,226B,226C, and226D, with only routing traces areas226B and226C being occupied by routing traces for the drive electrode rows204Y-208Y and the sense electrode columns204X-210X. In an example, each of the routing traces area can be, for example, approximately 3 mm wide. These widths are provided for exemplary purposes and the embodiments are not limited to these values.

In an example, one or more hybrid antennas may be implemented so that one portion of the hybrid antenna (e.g., a radiation structure) is implemented within a routing traces area, and another portion of the hybrid antenna (e.g., a ground structure) is implemented within a dummy area of the touch sensor (e.g., using one or more electrode traces within the dummy area). In this regard, the portion of the antenna within the dummy area (e.g., an edge dummy area, which is a visible area of the touch panel display) is transparent, while the portion within the routing traces area (which is not visible) can be implemented using non-transparent conductive material. The hybrid antenna may be connected by a feed (e.g., at the radiation structure). The ground structure of the hybrid antenna can be directly connected to the global ground (e.g.,228). Additionally, the ground structure can be capacitively coupled to one or more electrode traces of the touch sensor layer202X or202Y. In an example, the hybrid antenna can be a planar inverted-F antenna (PIFA). Options for connecting the feed include coplanar waveguide (CPW) and pogo pins.

In an example, an edge antenna can be implemented within one or more of the routing traces areas (e.g.,226A or226D). For example, a dipole antenna can be implemented within the routing traces area, and can be capacitively coupled to one or more electrode traces of the touch sensor layers202X or202Y. More detailed illustrations of the hybrid and edge antennas are illustrated in reference toFIGS. 3-5.

In this regard, the hybrid antenna and the edge antenna can be integrated into a touch panel display without compromising the touch sensitivity or the optical quality of the display. The proposed techniques for integrating a hybrid antenna can take advantage of the material discontinuity between view area transparent conductor material (e.g., the transparent conductive electrode traces of touch sensor layers202X and202Y) and the edge touch trace routing areas. The hybrid antenna also incorporates the radiation/feeding structures into a small unused bezel space used for touch sensor routing (e.g., routing traces areas226A-226D) to incorporate the antenna structure to fit into this area with designed orientation and location. For antenna designs that require a large ground, the hybrid antenna can be capacitively coupled (AC-coupled) to the corresponding touch sensor layer (e.g.,202X or202Y) so that all (or substantially all) of the electrode traces within the touch sensor layer are used as the ground.

Current integrated antenna solutions are metallic (non-transparent) conductor based and placed outside of the touch panel display, which requires additional large bezel area. Proposed integratable antenna solutions discussed herein can be based on transparent metallic conductor designs that integrated on the touch sensor, with feeding/radiation structures located within the touch sensor routing traces areas around the perimeter of the display to improve total antenna performance.

FIG. 3andFIG. 4illustrate example embodiments of hybrid antennas integratable with touch sensor layers in accordance with some aspects of the disclosure. Referring toFIG. 3, the diagram300illustrates the touch sensor200and a separate view of the RX touch sensor layer202X. More specifically, the touch sensor layer202X may include a plurality of electrode traces304. The electrode traces304can comprise indium tin oxide (ITO) transparent conductor, micro wire metal mesh, and/or one or more other materials as suitable for the intended purpose (e.g., other types of transparent conductors). Some of the electrode traces304can be used to form the plurality of sense electrode columns204X-210X.

FIG. 3additionally illustrates an edge dummy area302and a routing traces area226D. The edge dummy area302can be formed using some of the electrode traces304which are located between an edge of the touch sensor200and the sense electrode column210X. In an example, a hybrid antenna306can be implemented using the edge dummy area302and the routing traces area226D. More specifically, the hybrid antenna306can include a radiation structure308and a ground structure310. The radiation structure308can be implemented within the routing traces area226D, and the ground structure310can be implemented within the edge dummy area302. For example, one or more of the electrode traces304within the edge dummy area302can be floating and unconnected to other electrode traces. The ground structure310can be one of those floating electrode traces within the edge dummy area302, as seen inFIG. 3.

In an example, the radiation structure308can include feed terminal312for connecting the antenna306to a feed line. In an example, the hybrid antenna306can be connected to ground using the feed terminal312. In another example, the hybrid antenna306can be connected to ground using the ground structure310. More specifically, the ground structure310can be connected to the global ground ring228or to another ground connection available within the touch sensor200. In an example, the ground structure310can be capacitively coupled (AC coupled) to a remaining portion of the electrode traces304(e.g., a remaining portion of the touch sensor layer202X).

In this regard, the hybrid antenna306can combine display edge structures (e.g., radiation structure308within the routing traces area226D) with display area touch sensor traces ground structure310can be implemented using an electrode trace within the edge dummy area302) to improve antenna performance. Since the antenna radiation structure308is designed within the routing traces area (e.g.,226D), which is outside of the viewing area associated with the sensor layer202X, solid metal structures can be used to implement the radiation structure308. As a result, coupling is introduced between antenna structures and the touch sensor traces of sensor layer202X for improved antenna performance. Additionally, by implementing the hybrid antenna using both an edge dummy area of the electrode traces (which are transparent conductors) and routing traces area, a material discontinuity is introduced between solid metal (e.g., structures within the routing traces area226D) and meshed metal (e.g., structures within the edge dummy area located within the visible portion of the display) areas. Such discontinuity can result in edge and fringe coupling with the electrode traces within the display view area (i.e., the traces of the touch sensor layer202X), which can improve antenna performance.

As seen inFIG. 3, the hybrid antenna306is implemented as planar inverted-F antenna (PIFA). Even though antenna306is illustrated as a PIFA, the disclosure is not limited in this regard and other types of antennas can be used. Additionally, even though hybrid antenna306is implemented within the routing traces area226D and the edge dummy area302, other routing traces areas and edge dummy areas associated with the touch sensor200can be used as well. For example and in reference toFIG. 2, routing traces area226A or226B can be used as well. In an example, the hybrid antenna306can include portions308and310, which can be implemented as a single structure (e.g., ground structure can be implemented as a transparent conductor fused/connected with a non-transparent conductor used for the radiation structure308).

Referring toFIG. 4, the diagram400illustrates the touch sensor200and a separate view of the TX touch sensor layer202Y. More specifically, the touch sensor layer202Y may include a plurality of electrode traces404. The electrode traces404can comprise indium tin oxide (ITO) transparent conductor, micro wire metal mesh, and/or one or more other materials as suitable for the intended purpose (e.g., other types of transparent conductors). Some of the electrode traces404can be used to form the plurality of drive electrode rows204Y-208Y.

FIG. 4additionally illustrates an edge dummy area402(which can be the same as dummy area220inFIG. 2) and a routing traces area226A. The edge dummy area402can be formed using some of the electrode traces404which are located between an edge of the touch sensor200and the drive electrode row204Y. In an example, a hybrid antenna406can be implemented using the edge dummy area402and the routing traces area226A. More specifically, the hybrid antenna406can include a radiation structure408and a ground structure410. The radiation structure408can be implemented within the routing traces area226A, and the ground structure410can be implemented within the edge dummy area402. For example, one or more of the electrode traces404within the edge dummy area402can be floating and unconnected to other electrode traces. The ground structure410can be one of those floating electrode traces within the edge dummy area402, as seen inFIG. 4. Additionally, as seen inFIG. 4, the hybrid antenna406can be implemented by overlaying the radiation structure408on top of an electrode trace (e.g.,410) within the edge dummy area402. The ground structure410can be directly coupled (DC coupled) to ground (e.g., via the ground ring228) or via a feeding terminal within the radiation structure408). In an example, the ground structure410can be capacitively coupled (AC coupled) to electrode traces404of the touch sensor layer202Y.

FIG. 5illustrates an example embodiment of an edge antenna using portions of a touch panel display in accordance with some aspects of the disclosure. Referring toFIG. 5, the diagram500illustrates the touch sensor200and a separate view of the TX touch sensor layer202Y. More specifically, the touch sensor layer202Y may include a plurality of electrode traces404. The electrode traces404can comprise indium tin oxide (ITO) transparent conductor, micro wire metal mesh, and/or one or more other materials as suitable for the intended purpose (e.g., other types of transparent conductors). Some of the electrode traces404can be used to form the plurality of drive electrode rows204Y-208Y.

FIG. 5additionally illustrates a routing traces area226A. In an example, an edge antenna502can be implemented within the routing traces area226A. More specifically, edge antenna502can utilize unused areas surrounding the touch sensor200, such as the routing traces area226A (or other routing traces areas as illustrated inFIG. 2). In an example, the edge antenna502can be a dipole antenna (as seen inFIG. 5), but the disclosure is not limited in this regard and other types of antenna structures can be used as well for purposes of implementing an antenna within a routing traces area or other areas outside of the touch sensor200. As seen inFIG. 5, the edge antenna502does not use a ground plane in order to radiate, which makes the edge antenna suitable for interference-friendly integration.

In an example, the edge antenna502can AC-couple with the ground ring228, or with one or more of the electrode traces404of the touch sensor layer202Y to gain additional antenna efficiency. In another example, the edge antenna502can include an additional antenna structure504, which can function as additional reflective structure and to further facilitate AC coupling with the ground ring228.

In an example, the coupling between the antenna structures (e.g.,502,504) and the touch panel traces (e.g.,404) may be changed by changing the distance from the antenna structures to the edge of the sensor panel (e.g.,202Y) or to the ground ring228. There may be an optimized range that can balance and gain maximum performance. By varying the distance between antenna502and the ground ring228, extra antenna performance can be gained from the coupling between the antenna and the touch sensor traces. In an example, such distance may be 5 mm or less.

In an example, a hybrid antenna (such as antenna306) can be implemented using an edge dummy area and a routing traces area of the touch sensor layer202X (as seen inFIG. 3). Additionally, an edge antenna (such as antenna502) can be implemented using a routing traces area of the touch sensor layer202Y (as seen inFIG. 5). Furthermore, both the hybrid antenna (e.g.,306) and the edge antenna (e.g.,502) can be configured so that they are AC-coupled with each other for increased antenna efficiency.

FIG. 6illustrates an example device, which can utilize the integrated antennas described herein. In alternative embodiments, the communication device600may operate as a standalone device or may be connected (e.g., networked) to other communication devices. In a networked deployment, the communication device600may operate in the capacity of a server communication device, a client communication device, or both in server-client network environments. In an example, the communication device600may act as a peer communication device in peer-to-peer (P2P) (or other distributed) network environment. The communication device1100may be a personal computer (PC), a tablet PC, a set top box (STB), a personal digital assistant (PDA), a mobile telephone, a smart phone, a web appliance, a network router, switch or bridge, or any communication device capable of executing instructions (sequential or otherwise) that specify actions to be taken by that communication device. Further, while only a single communication device is illustrated, the term “communication device” shall also be taken to include any collection of communication devices that individually or jointly execute a set (or multiple sets) of instructions to perform any one or more of the methodologies discussed herein, such as cloud computing, software as a service (SaaS), other computer cluster configurations.

Communication device600may include a hardware processor602(e.g., a central processing unit (CPU), a graphics processing unit (GPU), a hardware processor core, or any combination thereof), a main memory604and a static memory606, some or all of which may communicate with each other via an interlink (e.g., bus)608. The communication device600may further include a display unit610, an input device612(e.g., a keyboard), and a user interface (UI) navigation device614(e.g., a mouse). In an example, the display unit610, input device612, and UI navigation device614may be a touch screen display. In an example, the input device612may include a touchscreen, a microphone, a camera (e.g., a panoramic or high-resolution camera), physical keyboard, trackball, or other input devices.

The communication device600may additionally include a storage device (e.g., drive unit)616, a signal generation device618(e.g., a speaker, a projection device, or any other type of information output device), a network interface device620, and one or more sensors621, such as a global positioning system (GPS) sensor, compass, accelerometer, motion detector, or other sensor. The communication device600may include an input/output controller628, such as a serial (e.g., universal serial bus (USB), parallel, or other wired or wireless (e.g., infrared (IR), near field communication (NFC), etc.) connection to communicate or control one or more peripheral devices (e.g., a printer, card reader, etc.) via one or more input/output ports.

The storage device616may include a communication device (or machine) readable medium622, on which is stored one or more sets of data structures or instructions624(e.g., software) embodying or utilized by any one or more of the techniques or functions described herein. In an example, at least a portion of the software may include an operating system and/or one or more applications (or apps) implementing one or more of the functionalities described herein. The instructions624may also reside, completely or at least partially, within the main memory604, within the static memory606, and/or within the hardware processor602during execution thereof by the communication device600. In an example, one or any combination of the hardware processor602, the main memory604, the static memory606, or the storage device616may constitute communication device (or machine) readable media.

While the communication device readable medium622is illustrated as a single medium, the term “communication device readable medium” or “machine-readable medium” may include a single medium or multiple media (e.g., a centralized or distributed database, and/or associated caches and servers) configured to store the one or more instructions624.

The term “communication device readable medium” or “machine-readable medium” may include any medium that is capable of storing, encoding, or carrying instructions for execution by the communication device600and that cause the communication device600to perform any one or more of the techniques of the present disclosure, or that is capable of storing, encoding or carrying data structures used by or associated with such instructions. Non-limiting communication device readable medium examples may include solid-state memories, and optical and magnetic media. Specific examples of communication device readable media may include: non-volatile memory, such as semiconductor memory devices (e.g., Electrically Programmable Read-Only Memory (EPROM), Electrically Erasable Programmable Read-Only Memory (EEPROM)) and flash memory devices; magnetic disks, such as internal hard disks and removable disks; magneto-optical disks; Random Access Memory (RAM); and CD-ROM and DVD-ROM disks. In some examples, communication device readable media may include non-transitory communication device readable media. In some examples, communication device readable media may include communication device readable media that is not a transitory propagating signal. The term “communication device readable medium” or “machine-readable medium” do not include signals or carrier waves.

In an example, the network interface device620may include one or more physical jacks (e.g., Ethernet, coaxial, or phone jacks) or one or more antennas to connect to the communications network626. In an example, the network interface device620may include one or more wireless modems, such as a Bluetooth modem, a Wi-Fi modem or one or more modems or transceivers operating under any of the communication standards mentioned herein. In an example, the network interface device620may include a plurality of antennas to wirelessly communicate using at least one of single-input multiple-output (SIMO), MIMO, or multiple-input single-output (MISO) techniques. In some examples, the network interface device620may wirelessly communicate using Multiple User MIMO techniques. The term “transmission medium” shall be taken to include any intangible medium that is capable of storing, encoding or carrying instructions for execution by the communication device600, and includes digital or analog communications signals or other intangible medium to facilitate communication of such software.

In an example, the processor602can communicate with the RF transmitter630and the RF receiver632to transmit and receive wireless signals via the antenna638. In an example, the RF transmitter630in the RF receiver632may be implemented within the network interface device620.

In an example, the touchscreen display610can include a touch panel634and a display panel636. The antenna638can be integrated within the touch panel634. For example, the antenna638can be a hybrid antenna or an edge antenna as described herein above. The RF transmitter630can include suitable circuitry, logic, interfaces and code for transmitting radiofrequency signals via the antenna638. The RF transmitter630can generate the radiofrequency signals using baseband signals sent from the processor602. In this regard, the RF transmitter630can include an amplifier to amplify signals before transmission via the integrated antenna638. The RF transmitter630in the RF receiver632can be configured to transmit and receive radiofrequency signals of any frequency including, microwave frequency bands (0.3 to 300 GHz), which include cellular telecommunications, W LAN and WWAN frequencies.

Additional Notes & Examples

Example 1 is a touch panel for a display, the touch panel comprising: a touch sensor comprising a plurality of electrode traces, wherein a first portion of the plurality of electrode traces form sensing lines configured to receive touch input, the touch sensor having an edge dummy area between an edge of the touch sensor and one of the electrode traces of a remaining portion of the plurality of electrode traces, wherein the edge dummy area is outside of the sensing lines; and an antenna comprising a radiation structure and a ground structure, wherein the radiation structure is within a routing traces area outside of the touch sensor, and the ground structure is located within the edge dummy area.

In Example 2, the subject matter of Example 1 optionally includes wherein the ground structure comprises an electrode trace of the plurality of electrode traces located within the edge dummy area of the touch sensor.

In Example 3, the subject matter of Example 2 optionally includes wherein the electrode trace of the ground structure is disposed along the edge of the touch sensor.

In Example 4, the subject matter of any one or more of Examples 1-3 optionally include wherein the ground structure and the touch sensor comprise a same transparent conductive material.

In Example 5, the subject matter of Example 4 optionally includes wherein the transparent conductive material comprises indium tin oxide (ITO).

In Example 6, the subject matter of Example 5 optionally includes wherein the transparent conductive material comprises a micro-wire metal mesh.

In Example 7, the subject matter of any one or more of Examples 1-6 optionally include wherein the radiation structure comprises an opaque conductive material.

In Example 8, the subject matter of any one or more of Examples 1-7 optionally include wherein the antenna radiation structure is a planar inverted-F antenna (PIFA).

In Example 9, the subject matter of any one or more of Examples 1-8 optionally include a global ground ring, wherein the global ground ring is directly coupled to the ground structure and is co-planar with the touch sensor.

In Example 10, the subject matter of any one or more of Examples 1-9 optionally include wherein the ground structure is capacitively coupled to the plurality of electrode traces.

Example 11 is a touch panel for a display, the touch panel comprising: a first touch sensor layer comprising a first plurality of electrode traces forming a plurality of sensing lines; a second touch sensor layer comprising a second plurality of electrode traces forming a plurality of driving lines, the driving lines and the sensing lines configured to receive touch input; a global ground ring that is co-planar with the second touch sensor layer and is located within a routing traces area outside of the second touch sensor layer, the second touch sensor layer having edge dummy area located between an edge of the second touch sensor and one of the plurality of driving lines, wherein the edge dummy area is non-intersecting with the plurality of driving lines; and an antenna comprising a radiation structure and a ground structure, wherein the radiation structure is located within the routing traces area, and the ground structure is located within the edge dummy area and is coupled to the radiation structure.

In Example 12, the subject matter of Example 11 optionally includes wherein the radiation structure comprises a solid metal feed structure configured to receive an antenna feed line and an antenna ground line.

In Example 13, the subject matter of any one or more of Examples 11-12 optionally include wherein the ground structure is a floating ground structure within the edge dummy area.

In Example 14, the subject matter of any one or more of Examples 11-13 optionally include wherein the ground structure is an electrode trace located along the edge of the second touch sensor layer.

In Example 15, the subject matter of Example 14 optionally includes wherein the electrode trace forming the ground structure is directly coupled to the global ground ring.

In Example 16, the subject matter of any one or more of Examples 14-15 optionally include wherein the electrode trace forming the ground structure is capacitively coupled to the second plurality of electrode traces forming the second touch sensor layer.

In Example 17, the subject matter of any one or more of Examples 11-16 optionally include wherein the ground structure and the touch sensor comprise a same transparent conductive material.

In Example 18, the subject matter of Example 17 optionally includes wherein the transparent conductive material comprises indium tin oxide (ITO).

In Example 19, the subject matter of any one or more of Examples 17-18 optionally include wherein the transparent conductive material comprises a micro-wire metal mesh.

In Example 20, the subject matter of any one or more of Examples 11-19 optionally include a plurality of routing traces coupled to the plurality of driving lines and located within the routing traces area.

In Example 21, the subject matter of any one or more of Examples 11-20 optionally include a second radiation structure associated with a second antenna, wherein the second radiation structure is located within a routing traces area of the first touch sensor layer.

In Example 22, the subject matter of Example 21 optionally includes wherein the second radiation structure comprises a dipole antenna, the dipole antenna configured to receive an antenna feed line and an antenna ground line.

In Example 23, the subject matter of any one or more of Examples 21-22 optionally include a plurality of routing traces coupled to the plurality of sensing lines and located within the routing traces area and outside of the first plurality of electrode traces.

In Example 24, the subject matter of any one or more of Examples 21-23 optionally include wherein the second radiation structure is capacitively coupled to the global ground ring.

In Example 25, the subject matter of any one or more of Examples 21-24 optionally include wherein the second radiation structure is capacitively coupled to the first plurality of electrode traces forming the plurality of sensing lines.

In Example 26, the subject matter of any one or more of Examples 21-25 optionally include a reflective structure associated with the second antenna, wherein the reflective structure is located within the routing traces area of the first touch sensor layer, between the second radiation structure and an edge of the first touch sensor layer.

In Example 27, the subject matter of Example 26 optionally includes wherein the reflective structure comprises a dipole antenna.

In Example 28, the subject matter of any one or more of Examples 26-27 optionally include wherein the reflective structure is capacitively coupled to the second radiation structure and the first plurality of electrode traces forming the plurality of sensing lines.

Example 29 is a touch panel for a display, the touch panel comprising: a first touch sensor layer comprising a first plurality of electrode traces forming a plurality of sensing lines; a first radiation structure associated with a first antenna, wherein the first radiation structure is located within a routing traces area of the first touch sensor layer.

In Example 30, the subject matter of Example optionally includes wherein the first radiation structure is a dipole antenna, and the second radiation structure is a planar inverted-F antenna (PIFA).

In Example 31, the subject matter of any one or more of Examples 29-30 optionally include wherein the first radiation structure is capacitively coupled to the second radiation structure.

The above detailed description includes references to the accompanying drawings, which form a part of the detailed description. The drawings show, by way of illustration, specific aspects of the present disclosure that may be practiced. These aspects of the present disclosure are also referred to herein as “examples.” Such examples may include elements in addition to those shown or described. However, also contemplated are examples that include the elements shown or described. Moreover, also contemplated are examples using any combination or permutation of those elements shown or described (or one or more aspects thereof), either with respect to a particular example (or one or more aspects thereof), or with respect to other examples (or one or more aspects thereof) shown or described herein.

The above description is intended to be illustrative, and not restrictive. For example, the above-described examples (or one or more aspects thereof) may be used in combination with others. Other aspects of the present disclosure may be used, such as by one of ordinary skill in the art upon reviewing the above description. The Abstract is to allow the reader to quickly ascertain the nature of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. Also, in the above Detailed Description, various features may be grouped together to streamline the disclosure. However, the claims may not set forth every feature disclosed herein as aspects of the present disclosure may feature a subset of said features. Further, aspects of the present disclosure may include fewer features than those disclosed in a particular example. Thus, the following claims are hereby incorporated into the Detailed Description, with a claim standing on its own as a separate embodiment. The scope of the aspects of the present disclosure disclosed herein is to be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled.