Keyboard with adaptive input row

Embodiments related to an electronic device having an adaptive input row. The adaptive input row may be positioned within an opening of a device and include a cover for receiving a touch and a display that is configured to present an adaptable set of indicia. The adaptive input row may also include one or more sensors for detecting the location of a touch and/or the magnitude of a force of the touch. The adaptive input row may be positioned adjacent or proximate to a keyboard of the electronic device.

CROSS-REFERENCE TO RELATED APPLICATION(S)

This application is a nonprovisional patent application of U.S. Provisional Patent Application No. 62/234,950, filed Sep. 30, 2015 and titled “Keyboard with Adaptive Input Row,” the disclosure of which is hereby incorporated herein by reference in its entirety.

FIELD

The described embodiments relate generally to user-input devices. More particularly, the present embodiments relate to an adaptive input row for receiving various types of user input.

BACKGROUND

Traditionally, user input to a computer system includes a keyboard having dedicated keys or buttons. The operation of each key or button may be tied to a particular function or command. However, traditional keyboard systems lack the flexibility to accommodate expansive features offered by newer devices, operating systems, and software. A traditional keyboard may include some keys that may be used to perform multiple or alternative functions by pressing the key at the same time as a “shift” or “function” button. However, such configurations provide limited flexibility and can be awkward or non-intuitive for a user to operate.

SUMMARY

Some example embodiments are directed to an electronic device having an adaptive input row. The device may include a housing that defines an opening and an adaptive input row that is positioned within the opening. The adaptive input row may include a cover for receiving a touch, and a display positioned below the cover and configured to present an adaptable set of indicia. The adaptive input row may also include a touch sensor configured to detect the location of the touch, and a force sensor configured to detect a magnitude of a force of the touch. The device may also include a set of keys positioned proximate to the adaptive input row. In some embodiments, the adaptive input row is positioned adjacent to a number row of the set of keys.

In some embodiments, the device may also include a processing unit positioned within the housing, and a primary display positioned at least partially within the housing and configured to display a graphical-user interface executed by the processing unit. In some embodiments, the display is an organic light-emitting diode display. The electronic device may be a keyboard device.

In some embodiments, multiple user-input regions are defined along a length of the cover. A first user-input region of the multiple user-input regions may be responsive to the touch in a first input mode, and may not be responsive to the touch in a second input mode.

In some embodiments, the force sensor is positioned below the display. The force sensor may include a pair of capacitive electrodes separated by a compressible layer. In some embodiments, the force sensor is configured to provide a seal to prevent an ingress of moisture or liquid into an internal volume of the adaptive input row. In some embodiments, the pair of capacitive electrodes is a first pair of capacitive electrodes disposed at a first end of the display. The adaptive input row may also include a second pair of capacitive electrodes disposed at a second end of the display. In some embodiments, the electronic device further comprises sensor circuitry operatively coupled to the first and second pairs of capacitive electrodes. The sensor circuitry may be configured to output a signal that corresponds to a location of the touch on the cover based on a relative amount of deflection between the first and second pairs of capacitive electrodes.

In some embodiments, the force sensor is positioned below the display. The force sensor may include an array of force-sensitive structures arranged along a length of the adaptive input row.

Some example embodiments are directed to a user input device that includes a set of alpha-numeric keys, and an adaptive input row positioned adjacent the set of alpha-numeric keys. The adaptive input row may include a cover, a display positioned below the cover, and a sensor configured to detect a location of a touch on the cover. The display may be configured to display a first set of indicia when the device is operated in a first output mode. Touch output from the sensor may be interpreted as a first set of commands when in the first input mode. The display may be configured to display a second set of indicia when the device is operated in a second output mode. Touch output from the sensor may be interpreted as a second set of commands when in the second input mode. In some embodiments, the adaptive input row includes a touch-sensitive region that extends beyond a display region positioned over the display.

In some embodiments, a set of programmably defined regions is defined along a length of the adaptive input row. The first and second sets of indicia may be displayed over the same set of programmably defined regions. In some embodiments, the first set of indicia includes an animated indicia that is responsive to the touch on the cover.

In some embodiments, the touch on the cover includes a touch gesture input in which the touch is moved across at least a portion of the cover. The touch may also include a forceful touch input in which the touch exerts a force that exceeds a threshold. The touch may also include a multi-touch input in which multiple touches contact the cover.

Some example embodiments are directed to an electronic device including a housing, a primary display positioned within a first opening of the housing, and a keyboard having a set of keys protruding through a set of openings in the housing. The device may also include an adaptive input row positioned within a second opening of the housing adjacent to the set of keys. The adaptive input row may include a cover forming a portion of an exterior surface of the electronic device and a display positioned below the cover. The adaptive input row may also include a sensor configured to detect a touch within a programmably defined region on the cover.

In some embodiments, the sensor comprises a capacitive touch sensor formed from an array of capacitive nodes. The programmably defined region may include a touch-sensitive area detectable by multiple capacitive nodes. In some embodiments, the sensor comprises a capacitive touch sensor configured to detect a touch gesture on the cover. Additionally or alternatively, the sensor may include two or more force-sensitive structures that are configured to detect a location of the touch along the length of the cover and a force of the touch.

In some embodiments, the sensor comprises a force-sensitive structure that is disposed about the perimeter of the display. The force-sensitive structure may include an upper capacitive electrode, a lower capacitive electrode, and a compressible layer positioned between the upper and lower capacitive electrodes. In some embodiments, the force-sensitive structure forms a protective seal around the display.

In some embodiments, the electronic device further comprises a flexible conduit operatively coupled to the display and sensor. The flexible conduit may pass through a third opening in the housing located proximate to an end of the adaptive input row. The electronic device may also include a gasket positioned about the flexible conduit to form a seal between the flexible conduit and the third opening.

DETAILED DESCRIPTION

The following disclosure relates to an electronic device having a keyboard or similar user-input device that includes an adaptive input row. The adaptive input row may include a display used to present a set of indicia or visual cues that correspond to a set of adaptive commands or functions. The adaptive input row may be responsive to a user touch, allowing selection of one or more of the set of adaptive commands or functions. The adaptive input row may be positioned above the set of alpha-numeric keys in the place of a traditional function row on a keyboard. In some cases, the adaptive input row can be used to perform the same functionality as a traditional function row, as well as perform an expanded and diverse set of commands and functions as described herein.

Some example embodiments are directed to an adaptive input row having a display that is configured to produce an adaptable set of visual indicia that correspond to an input mode of the adaptive input row. The indicia on the display may correspond to one or more of the following: a hardware-dependent input mode used to control one or more devices or hardware elements; a software-dependent input mode used to control one or more aspects of a software program being executed on the device; a user-defined mode that is configurable by the user; and other input mode examples which are described herein. The display may be used to present a set of static indicia, one or more animated indicia, or a combination of static and animated indicia.

The display may be integrated with one or more touch sensors and/or force sensors that are configured to detect various combinations of user touch and force input on the surface of the adaptive input row. The touch and/or force sensors may provide a touch-sensitive surface that is configured to detect the location of a touch, a magnitude of a touch, and/or a movement of the touch along the adaptive input row. The touch and/or force sensors may be used in combination or together to interpret a broad range of user touch configurations, including touch gestures, multi-touch input, and variable force input.

Some example embodiments are directed to an input row stack that includes a display positioned below a cover. The input row stack may also include one or both of a touch sensor and a force sensor. The touch and/or force sensor may be used to determine the position of a touch along the length of the row. In some implementations, the input row includes a touch-sensitive region that extends beyond a display region. The extended region may be used to perform dedicated functions or operations.

FIG. 1depicts an example device having an adaptive input row. In the present embodiment, the device100is a notebook computing device that includes an adaptive input row110, keyboard120and a primary display130all positioned at least partially within a housing102. Other example devices may include a desktop computing system, a standalone keyboard, a tablet computing system, and so on. Additional example devices are described below with respect toFIGS. 6 and 7. Example internal components of the device100are described below with respect toFIG. 8.

As shown inFIG. 1, the device100includes an adaptive input row110positioned along a surface of a housing102above the keyboard120. In the present example, the adaptive input row110is positioned adjacent to the portion of the keyboard120that typically includes a row of number keys. This position of the adaptive input row110can also be described as being along a side of the keyboard120that is opposite to the user. In some cases, the adaptive input row110is positioned in the location ordinarily occupied by the function row of a traditional keyboard. However, the position and arrangement of the adaptive input row110may vary in different embodiments. For example, the adaptive input row may be positioned along the side of the keyboard120, adjacent to a bottom of the keyboard120, or located in another region of the device100that is not proximate to the keyboard120.

The adaptive input row110may have a color and/or finish that matches the color and/or finish of the housing102. For example, the adaptive input row110may be painted or otherwise treated to match the color and appearance of an aluminum or plastic housing102. In some embodiments, a border region is formed around the perimeter of the adaptive input row110that is configured to substantially match the appearance of the housing102, while a central portion of the adaptive input row110is transparent to facilitate the presentation of graphics and symbols.

The adaptive input row110may be configured to operate as a single-dimensional, touch-sensitive surface. For example, the adaptive input row110may be touch-sensitive and include either or both of a touch sensor or a force sensor that is configured to determine the location of a touch along the length of the adaptive input row110. As described in more detail below with respect toFIGS. 2A-2F, the adaptive input row110may be configured to receive a wide variety of touch and/or force inputs, which may be used to interpret a diverse set of commands or operations. In this example, the adaptive input row110has a width that is approximately the same as the width of the keys of the keyboard120. While the adaptive input row110may be sized to accept an object of approximately the width of a fingertip, the adaptive input row110may be configured to recognize some small movements in directions that are transverse to the length of the adaptive input row110.

The adaptive input row110may include an adaptable display and be configured to receive touch input from the user. The adaptable display may be a self-illuminated or illuminated display that is configured to present different sets of visual indicia depending on the input mode of the adaptive input row110. The visual indicia may correspond to a function or command, which may also change depending on the input mode. Thus, touch selection of the same region of the adaptive input row110may initiate or trigger a wide variety of functions or commands. Several non-limiting example scenarios are described below with respect toFIGS. 2A-2F. Various example adaptive input row stack-ups are also provided below with respect toFIGS. 3, 4A-4F, 5A-5B, and 6A-6C.

In the example ofFIG. 1, the device100includes a housing102. The housing may include an upper portion102apivotally coupled to a lower portion102b. The pivotal coupling may allow the housing102to move between an open position (shown inFIG. 1) and a closed position. In the open position, the user can access the keyboard120and view the primary display130. In the closed position, the upper portion102amay be folded to come into contact with the lower portion102bto hide or protect the keyboard120and the primary display130. In some implementations, the upper portion102ais detachable from the lower portion102b.

As shown inFIG. 1, the device100includes a keyboard120positioned at least partially within the lower portion102bof the housing102. In some embodiments, the lower portion102bincludes a web portion that includes multiple openings through which each of the keys of the keyboard120protrude. In some embodiments, the keyboard120is positioned within a single large opening in the lower portion102b. In one example, each of the keys is an electromechanical switch that is electrically actuated when a user depresses a key mechanism past an actuation point or threshold. The keys of the keyboard may be actuated by making an electrical contact between two elements, although, in some embodiments, an optical signal, magnetic signal, or other type of actuation may be used.

The device100includes a primary display130that is positioned at least partially within an opening of the upper portion102aof the housing102. The primary display130may be operatively coupled to one or more processing units of the device100and used to display a graphical-user interface being generated using the one or more processing units. In some embodiments, the primary display130functions as the main monitor for a computing operating system to display the main graphical output for the device100. The primary display130may also be used to display the user interface associated with one or more programs executed on the processing units of the device100. For example, the primary display130may display a word processing user interface, a spreadsheet user interface, a web browsing user interface, and so on.

The device100may also include various other components or devices depicted or not depicted inFIG. 1. In particular, the device100may include a track pad104for receiving touch input from a user. The track pad104may be positioned along a surface of the lower portion102balong a side of the keyboard120opposite to the adaptive input row110. The track pad104may be used to control or guide a cursor or pointer displayed on the primary display130. The track pad104may also be used to control the location of a caret in a word processing user interface, the location of an active cell in a spreadsheet user interface, or select text in a web browser user interface.

Below the track pad104, the device may include one or more selection buttons106. The selection button106may be used to select items or objects displayed on the primary display130. The selection button106may be used, for example, to select an item displayed under or proximate to the cursor or pointer controlled by the track pad104. In some cases, the selection button106is an electromechanical button that is actuated by depressing the selection button106past a threshold position. The selection button106may also be an electronic button that is actuated by pressing a region with a force that is greater than a threshold or actuation force. In such cases, the selection button106may not actually displace a perceptible amount when actuated.

The device100also includes one or more ports108or electrical connectors positioned along one or more sides of the housing102. The ports108may include, for example, a USB connection port, an IEEE 1394 data port, audio connection port, video connection port, or other electrical hardware port that is configured to transmit and/or receive signals or data. The ports108may also include a power connection port that is configured to receive electrical power from an external source such as a wall outlet or other power source.

In general, the adaptive input row may provide an expandable or adaptable user input for the device. In particular, an adaptive input row having a display, a touch sensor and/or a force sensor may be configured to receive user input for a wide range of scenarios.FIGS. 2A-2Fdepict example embodiments of an adaptive input row and how it may be used to interpret a wide variety of user input.

FIG. 2Adepicts an example partial view of an adaptive input row200positioned above or adjacent a set of keys220of a keyboard. In this example, the adaptive input row200is displaying a set of indicia201-204that corresponds to various functions or operations. The set of indicia201-204may be displayed in accordance with a first input mode, such as a function-row input mode. The function-row input mode may, for example, be the default or initial input mode of the adaptive input row200.

The adaptive input row200may include a set of programmably defined regions211-214, each associated with a respective indicium of the set of indicia201-204. Each region211-214may be defined as the area above and immediately surrounding a respective indicium201-204. In this example, each region211-214is defined as a substantially rectangular region that abuts an adjacent region along the length of the adaptive input row200. The approximate border between the regions is indicated by a short line segment, as shown inFIG. 2A. However, it is not necessary that the borders of the regions211-214be visually marked or designated. It is also not necessary that the regions211-214be rectangular in shape or be directly abutting each other. For example, in some embodiments, the regions211-214may be oval or rounded in shape and be separated by a small gap or region that is not associated with an indicium.

As shown inFIG. 2A, the adaptive input row200includes a touch-sensitive region210that is not associated with a respective indicium. In some embodiments, the touch-sensitive region210may not include any display or illumination capacity. While the adaptive input row200may not display an indicium or symbol, the touch-sensitive region210may still be associated with one or more functions or operations. For example, the touch-sensitive region210may be operable, when touched, to perform an “illuminate” function that causes the other indicia201-204of the adaptive input row200to become illuminated. Similarly, the touch-sensitive region210may be operable, when touched, to change the indicia or graphical output on other programmably defined regions211-214of the adaptive input row200. For example, in response to a touch within the touch-sensitive region210, the adaptive input row200may be configured to change the set of indicia201-204from a first set indicia to a second, different set of indicia. In some cases, the touch-sensitive region210may be operable to change between different input modes of the adaptive input row200. The touch-sensitive region210may also be operable to perform a “wake” function that activates the adaptive input row200, the keyboard, and/or the device. In some embodiments, the touch-sensitive region210is at least partially illuminated by a backlight to provide a glow or other visual indicator. In some embodiments, the touch-sensitive region210includes one or more indelible markings, such as a printed border, symbol, or shaded region.

The indicia that are displayed and the respective regions may vary depending on the input mode of the adaptive input row200. In the example input mode ofFIG. 2A, the set of indicia may include a set of function icons202(“F1”),203(“F2”), and204(“F3”). The function icons202-204may correspond to functionality traditionally associated with the function-number keys (e.g., F1 through F12) on a traditional keyboard. The functionality assigned to these icons202-204may be defined by the operating system or other software running on the device. A user may initiate or execute the assigned functionality by touching the respective region212-214associated with one of the function icons202-204.

As shown inFIG. 2A, the adaptive input row200may also display an indicium201that, in this example, is depicted as a volume icon. The indicium may correspond to the volume control of a speaker contained within or controlled by the device. A touch on the region211corresponding to the indicium201may initiate a volume control function or operation.

In particular,FIG. 2Bdepicts another (second) input mode that may be invoked in response to, for example, the touch of an object225(e.g., a finger) on the region211. In the second input mode depicted inFIG. 2B, the programmably defined regions211-214remain in the same location and a different set of indicia201,205,206, and204are displayed. The set of indicia associated in the second input mode may include both changed indicia and indicia that may stay the same. For example, the indicia201and204remain displayed in their respective regions211and214. However, different indicia205and206are displayed within regions212and213, respectively.

The new or changed indicia may correspond to the user selection, which in this example may be interpreted as a request to control speaker hardware settings (e.g., volume control). Accordingly, the indicia205and206are associated with hardware control functionality, specifically, volume down (“−”) and volume up (“+”) speaker controls. While these are provided as example hardware control features, other icon arrangements or functionality may also be provided.

With respect to the example second input mode ofFIG. 2B, the touch-sensitive region210may remain associated with the same function or operation assigned with the input mode ofFIG. 2A. That is, the touch-sensitive region210may be assigned an “illuminate,” “wake,” or other similar operation and may be illuminated. Alternatively, the touch-sensitive region210may become un-illuminated or darkened in accordance with the second input mode due to the adaptive input row200being in a currently active state.

FIG. 2Cdepicts another example (third) input mode that may be invoked in response to a user selection or other triggering event. As shown inFIG. 2C, another (third) set of indicia may be displayed in accordance with the third input mode. Specifically, a first indicium215may include a mute/unmute symbol, a second indicium216may include a volume down symbol, and a third indicium217may include a volume up symbol. A touch on each of the regions associated with indicia215-217may be interpreted as a command to perform the corresponding function (e.g., mute/unmute, decrease volume, increase volume).

The third input mode depicted inFIG. 2Calso includes a fourth indicium218, which may include a graduated indicator symbol. The fourth indicium218may be displayed within a corresponding region219that is configured to receive a touch gesture input. For example, a sliding touch to the left or right within region219may result in a corresponding volume adjustment, either up or down, depending on the direction of the sliding touch. Thus, the adaptive input row200may be used to provide a variable level of control that corresponds to or is scaled with respect to an amount of movement of a gesture or other touch input.

FIG. 2Ddepicts another example input mode including a set of indicia221,222,223that is associated with an application software functionality and/or user interface. In the present example, the input mode ofFIG. 2Dis associated with an e-mail application software program that may be currently being executed on the device. The indicium222may include an envelope having a number indicating a number of unread e-mails. A user selection on the region227, corresponding to indicium222, may be interpreted as a request to read new or recent e-mail messages. Accordingly, the device may display a user interface having new or recent e-mail messages, in response to a touch selection on region227. The indicium223may include a sheet of paper and pencil representing a command to open a new e-mail. Accordingly, a user selection on region228, corresponding to indicium223, may result in a new e-mail being opened and displayed on the primary display of the device (130ofFIG. 1). The example ofFIG. 2Dalso includes indicium221, which may indicate the type of application software (“EMAIL”) associated with the current input mode of the adaptive input row200.

In some implementations of the input mode ofFIG. 2D, some of the regions may be active or touch-sensitive and other regions may be inactive. For example, regions227and228may be active or touch-sensitive in accordance with the description provided above. That is, a touch on either region227or region228may result in a command or function being executed or performed. In contrast, region226may be inactive in the present input mode. That is, a touch on region221may not result in a command or function being executed or performed. Because the regions of an input mode are programmably defined, nearly any portion of the adaptive input row may be selectively designated as either active or inactive in accordance with the input mode.

FIG. 2Edepicts another example input mode that may be implemented using the adaptive input row200. The example input mode may include the display of an indicium232that may be animated or modified in accordance with a movement of an object234(e.g., a finger) across the adaptive input row200. Specifically, the adaptive input row200includes a slider having a slider node233that may be translated along the length of the adaptive input row200in accordance with the movement of the touch of the object234. In the present example, a sliding gesture across the adaptive input row200results in an animated indicium232having a slider node233that follows or tracks the movement of the object234.

FIG. 2Eprovides another example in which a gesture input over a region231may be provided to the adaptive input row200to provide a variable or scaled operation. The slider-type indicium232ofFIG. 2Emay be used to control a scalable or variable operation, such as a horizontal scroll across a document or user interface. In this case, the amount of scrolling may correspond to an amount of movement of the object234.

FIG. 2Fdepicts another example input mode using the adaptive input row200. The example input mode may include an indicium235that is animated to prompt or guide the user. In this example, the indicium235is a crescent that is animated in motion along path236from left to right across the adaptive input row200. The animated crescent235may prompt or guide the user to region237, which may be a touch-sensitive or activated region on the adaptive input row200.

FIGS. 2G-2Jdepict various example types of touch input that may be provided to the adaptive input row. In general, the touch input may include one or more types of touch interactions including, for example, a touch, a forceful touch, a gesture, or any combination thereof.

As shown inFIG. 2G, the adaptive input row200may be configured to receive and detect the force of a touch provided by an object240(e.g., a finger) placed in contact with the adaptive input row200. As described in more detail below with respect toFIGS. 3, 4A-4F, 5A-5B, and6A-6C, the adaptive input row200may include a force sensor that is configured to detect an amount of force applied to the adaptive input row200. In some embodiments, the force sensor of the adaptive input row200may be used to detect whether an applied force exceeds a threshold in order to distinguish between a light touch and a forceful touch. In many embodiments, the output of the force sensor is non-binary and corresponds to the amount or degree of force applied. Thus, more than one threshold may be used to define multiple levels of input force. Additionally, the force sensor may be used to generate a continuously varying signal that corresponds to the amount of force applied to the adaptive input row200, which may be used to control a variable or scalable function or operation.

In some embodiments, a visual response241is produced by the adaptive input row200in response to a touch or a force being applied by the object240. The visual response241may, in some cases, include an animation or other visual effect. For example, the visual response241may include a ripple or wave animation in response to a touch by the object240. In some implementations, the visual response241may include an animation (e.g., a wave or ripple) indicating that the force of the touch has exceeded a threshold. A touch having a force that exceeds a threshold may be used to invoke alternative or secondary functionality along the adaptive input row200. Additionally or alternatively, the force of a touch may be used to provide a variable or scaled input to a function or operation. For example, an amount of scrolling or the size of a selection may be controlled, in part, by modulating the amount of force applied to the adaptive input row200.

Additionally or alternatively, the adaptive input row200may be configured to produce a haptic response in response to a touch or applied force. For example, the adaptive input row200may include or be operatively coupled to a vibratory motor or other haptic device that is configured to produce a localized haptic output over a portion of the adaptive input row200. The localized haptic output may include an impulse or vibratory response that is perceptible to the touch on the surface of the adaptive input row200. The localized haptic output may be attenuated or damped for surfaces of the device other than the adaptive input row200.

FIG. 2Hdepicts an example of a multi-touch input that may be received by the adaptive input row200. In the example ofFIG. 2H, a first object251(e.g., a first finger) may be used to apply a forceful touch while a second object252(e.g., a second finger) may be used to touch and/or perform a gesture. The configuration depicted inFIG. 2Hmay be used to perform one of multiple types of touch input. For example, the forceful touch of the first object251may be used to invoke a secondary command, such as a document scroll command. While maintaining the forceful touch, as indicated by the visual response253, a gesture may be performed using the second object252which may be used as a variable input to the scroll command. For example, the amount of movement across the row provided by the second object252may correspond to an amount of scrolling that is performed.

FIG. 2Idepicts another example of a multi-touch input that may be received by the adaptive input row200. As shown inFIG. 2I, a first object261(e.g., a first finger) and a second object262(e.g., a second finger) may perform a coordinated movement or gesture to invoke a command or function. In the present example, the first object261and second object262may be moved away from each other in opposite directions. This multi-touch gesture may invoke a zoom-in or enlarge command for an object or image displayed using the primary display of the device. Similarly, the first object261and second object262may be moved toward each other in opposite directions to invoke a zoom-out or reduce command.

FIG. 2Jdepicts an example of a two-dimensional gesture that may be received by the adaptive input row200. In general, due to the long narrow shape of the touch-sensitive surface, adaptive input row200may be well-suited to detect single-dimensional (e.g., length-wise) touch location information. However, as shown inFIG. 2J, the adaptive input row200may also be configured to detect a small amount of transverse movement. In the example ofFIG. 2J, the adaptive input row200may be configured to determine the transverse (or width-wise) position of an object271(e.g., a finger) as it moves along a path272. In some embodiments, the adaptive input row200may be configured to detect a contoured or curved gesture path272. Additionally or alternatively, the adaptive input row200may be configured to detect a vertical or width-wise gesture that is performed transverse to the length of the adaptive input row200.

The ability to determine transverse position may not be limited to gesture input. For example, in some embodiments, more than one programmably defined region may be defined along the width of the adaptive input row200. Accordingly, the number of selectable regions may be increased by distinguishing between a touch on an upper region versus a lower region of the adaptive input row200.

The examples ofFIGS. 2A-2Jare provided by way of example and are not intended to be limiting in nature. Additionally, display features of any one of the examples ofFIGS. 2A-2Fmay be combined with any one of the example touch-input examples ofFIGS. 2G-2J. Similarly, one or more features of any one example ofFIGS. 2A-2Jmay be combined with one or more features of another example ofFIGS. 2A-2Jto achieve functionality or an input mode not expressly described in a single figure.

The flexible and configurable functionality described above with respect toFIGS. 2A-2Jdepends, in part, on the ability to programmably define various touch-sensitive regions across the adaptive input row. The programmably defined touch-sensitive regions may be enabled using one or more sensors that are integrated with the adaptive input row. The sensors may include one or both of a touch sensor and a force sensor.

FIG. 3depicts a simplified exploded view of an adaptive input row300having both a touch sensor layer306(or touch layer306) and a force sensor layer308(or force layer308) positioned under a cover302. As shown in the simplified embodiment ofFIG. 3, the touch layer306may be positioned between a display304and the cover302. The force layer308may be positioned on a side of the display304opposite to the touch layer306. However, the relative position of the various layers may change depending on the embodiment.

In the simplified exploded view ofFIG. 3, the layers are depicted as having approximately the same length. However, in some embodiments, the length of the layers may vary within the stack. For example, the cover302and touch layer306may be longer than the display304and the force layer308. In some cases, the cover302and the touch layer306may be extended to define a touch-sensitive region that is not illuminated by the display304.

As shown inFIG. 3, the touch sensor layer306includes an array of sensing nodes316that is configured to detect the location of a finger or object on the cover302. The array of sensing nodes316may operate in accordance with a number of different touch sensing schemes. In some implementations, the touch layer306may operate in accordance with a mutual-capacitance sensing scheme. Under this scheme, the touch layer306may include two layers of intersecting transparent traces that are configured to detect the location of a touch by monitoring a change in capacitive or charge coupling between pairs of intersecting traces. In another implementation, the touch layer306may operate in accordance with a self-capacitive sensing scheme. Under this scheme, the touch layer306may include an array of capacitive electrodes or pads that is configured to detect the location of a touch by monitoring a change in self-capacitance of a small field generated by each electrode. In other implementations, a resistive, inductive, or other sensing scheme could also be used.

In general, the density or size of the sensing nodes316of the touch layer306is greater than the size of a typical programmably defined region310, which may be sized to receive the touch of a single finger. In some cases, a group of multiple sensing nodes316are used to logically define the programmably defined region310. Thus, in some embodiments, multiple sensing nodes316may be used to detect the location of a single finger.

The sensing nodes316may be formed by depositing or otherwise fixing a transparent conductive material to a substrate material. Potential substrate materials include, for example, glass or transparent polymers like polyethylene terephthalate (PET) or cyclo-olefin polymer (COP). Example transparent conductive materials include polyethyleneioxythiophene (PEDOT), indium tin oxide (ITO), carbon nanotubes, graphene, piezoresistive semiconductor materials, piezoresistive metal materials, silver nanowire, other metallic nanowires, and the like. The transparent conductors may be applied as a film or may be patterned into an array on the surface of the substrate using a printing, sputtering, or other deposition technique.

In some embodiments, the touch layer306is formed directly on the cover302. Before forming the touch layer306, the cover302may be strengthened using an ion-exchange or other strengthening treatment process. The touch layer306may be formed directly onto the cover302using, for example, a stereo lithographic process or other similar technique for forming multiple conductive layers on a substrate. The strengthening and sense-layer-forming processes may be performed on a sheet of material that is larger than the final shape of the cover302. Thus, after forming the touch layer306, in some instances, the final shape of the cover302may be cut from the larger sheet of material. The cover302may then be edge ground and otherwise prepared for assembly with other components of the adaptive input row300.

As shown inFIG. 3, the adaptive input row300may also include a force layer308positioned, in this case, under the display304. The force layer308may include an array of force nodes318which may be used to estimate the magnitude of force applied by one or multiple touches on the cover302. Similar to the touch layer306, the force layer308may include an array of force-sensing structures or force nodes318, which may operate in accordance with various force-sensing principles.

In some embodiments, the force nodes318are formed from a strain-sensitive material, such as a piezoresistive, piezoelectric, or similar material having an electrical property that changes in response to stress, strain, and/or deflection. Example strain-sensitive materials include carbon nanotube materials, graphene-based materials, piezoresistive semiconductors, piezoresistive metals, metal nanowire material, and the like. Each force node318may be formed from an individual block of strain-sensitive material that is electrically coupled to sensing circuitry. Alternatively, each force node318may be formed from an electrode pair that is positioned on opposite sides or ends of a sheet of a strain-sensitive sheet.

In some embodiments, the force nodes318are formed from a capacitive force-sensitive structure that includes at least two capacitive plates separated by a compliant or compressible layer. The force of a touch may cause the partial compression or deflection of the compressible layer and may cause the two capacitive plates to move closer together, which may be measured as a change in capacitance using sensing circuitry operatively coupled to each of the force nodes318. The change in capacitance, which corresponds to an amount of compression or deflection of the compressible layer, may be correlated to an estimated (applied) force.

Alternatively, the force nodes318may operate in accordance with an optical or resistive sensing principle, For example, an applied force may cause a compression of a compliant or compressible layer which may be detected using an optical sensor. In some embodiments, compression of the compressible layer may result in contact between two or more layers, which may detected by measuring the continuity or resistance between the layers.

The arrangement and density of the force nodes318may vary depending on the implementation. For example, if it not necessary to resolve the force for each of multiple touches on the adaptive input row300, the force layer308may comprise a single force node318. However, in order to estimate the magnitude of force of each of multiple touches on the cover302, multiple force nodes318may be used. The density and size of the force nodes318will depend on the desired force-sensing resolution. Additionally or alternatively, the force layer308may be used to determine both the location and the force applied to the adaptive input row300. In this case the size and placement of the force nodes318may depend on the mechanical principle used to determine the location of the touch. Example force layer embodiments that may be used to detect location as well as forces are described in more detail below with respect toFIGS. 5A-5B.

In some embodiments, the touch layer306and the force layer308may be formed on a single, shared layer. For example the sensing nodes316and the force nodes318may be interspersed with each other. The combined touch and force layer may be positioned between the display304and the cover302or, alternatively, may be positioned below the display304on a side opposite to the cover302.

In some embodiments, one or more additional layers may be incorporated into the adaptive input row300. For example, the additional layer may include a haptic layer having one or more mechanisms for producing a localized haptic response on the surface of the cover302. In some instances, a haptic layer may include a piezoelectric transducer or other mechanism that is configured to produce a vibration or impulse that is perceptible to the touch of a finger on the surface of the cover302. In some embodiments, the haptic layer may include one or more strips of piezoelectric material that are configured to displace the cover302in response to an electrical stimulus or signal.

As described above with respect toFIG. 1, an adaptive input row may be integrated with or positioned in an opening in the housing of a device.FIGS. 4A-4Fdepict cross-sectional views taken across section A-A ofFIG. 1and illustrate various example component stackups for an adaptive input row400. While various components are depicted as being located in a particular position, the relative placement of some components may vary depending on the embodiment. Additionally, some components, including intermediate substrates, adhesive layers, and various other layers have been omitted fromFIGS. 4A-4Ffor clarity. In general, the adaptive input row examples ofFIGS. 4A-4Fmay be used to perform one or more of the inputs or display features described above with respect toFIGS. 2A-2J.

FIGS. 4A and 4Bdepict an example adaptive input row400in an un-deflected and deflected state, respectively. The adaptive input row400may be deflected by, for example, the force (F) of one or more touches on the surface of the cover402. In this embodiment, the force (F) results in a partial compression or deflection of the force-sensing layer408. Described in more detail below, the force-sensing layer408may be formed from a single force-sensing component or an array of force-sensing components or nodes positioned throughout the force-sensing layer408.

The movement of various components due to the deflection of the adaptive input row400is exaggerated betweenFIGS. 4A and 4Bto better illustrate various principles. However, in an actual implementation, the amount of movement or deflection may be significantly less than as depicted in the examples ofFIGS. 4A and 4B. In some cases, the actual movement or deflection of the adaptive input row400is imperceptible or virtually imperceptible to a human touch. Furthermore, it is not necessary to deflect the adaptive input row400in order to actuate one or more regions of the adaptive input row400. In particular, the adaptive input row400includes a touch layer406positioned below the cover402which may include a touch node array that is configured to detect light or near touches on the surface of the cover402. Therefore, the un-deflected state ofFIG. 4Amay also represent an un-actuated or an actuated state, as deflection of the adaptive input row400is not necessary in order to recognize a touch on the cover402of the adaptive input row400.

As shown inFIGS. 4A and 4B, the adaptive input row400is positioned in an opening412defined within the housing410. In the present embodiment, the opening412is a recess or pocket formed in a top surface of housing410. Accordingly, the opening412(with the exception of passage414) does not expose the internal components of the device even when the adaptive input row400is not installed or positioned within the opening412. This may be advantageous for sealing the device against debris or contaminants or liquid ingress. The opening412may be defined, at least in part, by a support structure418, which may be integrally formed with the housing410or, alternatively, may be formed from a separate component.

The adaptive input row400includes a cover402having a touch-sensitive surface that forms a portion of an exterior surface of the device. The cover402may be formed from a durable transparent material, including various types of ceramics, such as glass, alumina, sapphire, zirconia, and the like. The cover402may also be formed from a polymer material, such as polycarbonate, polyethylene, acrylic, polystyrene, and the like. The upper or exterior surface of the cover402may be approximately aligned with the upper or exterior surface of the housing410. In the present example, a small gap416is formed between the opening412of the housing410and the edge of the cover402. The gap416allows for a small amountof relative movement between the cover402and the housing410. The gap416may also form a structural relief between the components and reduce or eliminate forces applied to the housing410from affecting the force-sensing layer408of the adaptive input row400.

As shown inFIGS. 4A and 4B, a display404may be positioned below the cover402. The display404may be a pixelated display configured to display programmable images and graphic displays. In some embodiments, the display404may have a pixel spacing or pitch of0.4mm or less. The display404may also have a refresh rate of 30 Hz or greater. In the present example, the display404includes an organic light-emitting diode (OLED) display formed from two layers: an encapsulation layer404aand a phosphorescent organic layer404b. The display404may also include one of a variety of other types of display elements including, for example, a liquid crystal display (LCD), a light-emitting diode (LED) display, a electroluminescent (EL) display, an electrophoretic ink display, and the like.

As shown inFIGS. 4A and 4B, the display404and the cover402are nearly congruent. In particular, with the exception of touch-sensitive region401, the area of the display404overlaps with the area of the cover402. Thus, nearly the entire area of the cover402(with the exception of region401) may be illuminated by the display404. In this example, the cover402includes a non-display, touch-sensitive region401located at an end of the adaptive input row400. The touch-sensitive region401, as the name implies, may be configured to detect a touch and/or a force of touch but is not illuminated by the display404. The touch-sensitive region401may correspond to the touch-sensitive region210ofFIG. 2A-2B. In some embodiments, the touch-sensitive region401is not illuminated. Alternatively, the touch-sensitive region401may be illuminated by a light-emitting diode (LED) or other light-emitting element positioned under the cover402. The light-emitting element may be integrated, for example, with circuitry422positioned under the touch-sensitive region401.

A touch layer406may also be positioned below the cover402. In some embodiments, the touch layer406is positioned on a layer disposed between the cover402and the display404. As described above with respect toFIG. 3, the touch layer406may include an array or grid of capacitive nodes that is configured to detect the location of a touch on the surface of the cover402. In general, the size of the capacitive node is smaller than a typical programmably defined region so that multiple capacitive nodes may be included within a single programmably defined region.

As shown inFIGS. 4A and 4B, the adaptive input row400also includes a force layer408that may be used to estimate an amount of force (F) applied to the cover402. The force layer408may operate in accordance with one or more force-sensing principles, including piezoelectric, piezo-resistive, capacitive, and so on. The force layer408may be formed as a single force-sensing structure or may include an array or pattern of multiple force-sensing structures. While the force layer408is depicted as a generic block inFIGS. 4A and 4B, the force layer408may not cover the entire region below the display404. Alternative example force layers are described below with respect toFIGS. 5A-5B and 6A-6C.

The examples ofFIGS. 4A and 4B, the display404, the touch layer406, and the force layer408are operatively coupled to circuitry422. To reduce signal degradation, the circuitry422may be located in the opening412formed in the housing410. The circuitry422may be positioned, for example, below the non-display, touch sensitive region401. The circuitry422may include signal conditioning circuitry, analog to digital conversion circuitry, and/or other signal processing circuitry. In some embodiments, the circuitry422may also include one or more microprocessors used to control one or more of the display404, the touch layer406, and the force layer408.

The circuitry422may be coupled to other electronic components positioned within the housing410via a flexible conduit426. The flexible conduit426may be used to operatively couple the circuitry422with internal device components including, for example, one or more processing units and computer memory. A more complete description of internal device components is provided below with respect toFIG. 8.

In this example, the flexible conduit426enters an internal volume of the housing410through the passage414. The passage414may be formed as a hole or slot in the support structure418. To prevent the ingress of liquid or other potential contaminants, a gasket or seal428may be disposed between the flexible conduit426and the passage414. The seal428may be formed from a soft compliant material such as silicone or another type of elastomer. In some embodiments, the seal428may be over-molded directly onto the flexible conduit426. Alternatively, the seal428may be formed as a separate component and slipped onto the flexible conduit426before it is inserted into the passage414.

Alternatively, the circuitry422may be formed on or attached to the flexible conduit426. Thus, in some cases, the circuitry422may pass through the passage414and may even be positioned within the internal volume of the housing410. In some embodiments, the circuitry422may be positioned within a separate opening that is partitioned or otherwise separated from the opening412.

The adaptive input row400may include other features or components that reduce potential exposure to moisture, liquid, or other contaminants. For example, the adaptive input row400may include a potting layer424formed around the edges of the display404. In some embodiments, the potting layer424may also cover some or all of the force layer408and/or touch layer406. In some embodiments, the potting layer424is formed from two or more layers having different materials and/or covering different regions of the adaptive input row400. The potting layer424may be formed from an epoxy or other similar compound. The potting layer424may be embedded with another material such as a glass fiber to improve the strength and performance of the potting layer424. The potting layer424may also be specially formulated to be less sensitive to moisture or other potential contaminants.

In some embodiments, some or all of the opening412may be filled with a potting or encapsulating material. For example, the region of the opening412surrounding the circuitry422may be filled with potting or encapsulating material. By encapsulating or potting the region around the circuitry422, the electronics may be protected from moisture while also sealing the passage414and preventing moisture or liquid from entering the internal volume of the housing410.

FIGS. 4C and 4Ddepict an alternative embodiment of an adaptive input row450having a cantilevered cover452. In this configuration, one or more edges or sides of the cover452are attached or integrally formed with the housing460. For example, the cover452may be formed from a sheet of glass that is attached to the housing460and configured to overhang in a cantilever fashion over the opening462in the housing460. The display454may be positioned below the cover452and above the force layer458. A gap468may be formed between the cover452and an edge of the opening462allowing the cover452to bow or displace slightly.

As shown inFIG. 4D, a force (F), due to, for example, a forceful touch on the cover452, may cause the cover452to deflect similar to a cantilevered beam. Similar to the previous example, the force layer458(or other compliant layer) may deflect slightly in response to the force (F). The depicted deflection is exaggerated to better illustrate the principles of this embodiment. In some implementations, the deflection may be much smaller and the movement of the cover452may be imperceptible or virtually imperceptible to a human touch.

Other than the cantilevered cover452, the other components of the adaptive input row450may be as described above with respect toFIGS. 4A and 4B. Redundant descriptions have been omitted for clarity.

FIGS. 4E and 4Fdepict alternative configurations for positioning the circuitry that is operatively coupled to elements of the adaptive input row. The examples ofFIGS. 4E and 4Fmay be combined with any one of the adaptive input row embodiments described herein and is not limited to the particular configuration or stackup depicted inFIGS. 4E and 4F.

FIG. 4Edepicts an example adaptive input row470having circuitry472positioned within a cavity474. As shown inFIG. 4E, the cavity474is covered by an extension476integrally formed with the housing477. Thus, the circuitry472is positioned below the extension476of the housing477rather than beneath the cover, as depicted in the examples ofFIGS. 4A-4D. In the configuration ofFIG. 4E, the cover478may be nearly the same size as the display475and, thus, the display475may be used to provide graphical output for nearly the entire cover478.

As shown inFIG. 4E, the circuitry472may be coupled to one or more separate components by flexible conduit426. Similar to previous examples, the flexible conduit426may enter an interior volume of the housing477through passage414. To prevent the ingress of liquid or other potential contaminants, a gasket or seal428may be disposed between the flexible conduit426and the passage414.

FIG. 4Fdepicts an example adaptive input row480having circuitry482positioned within an internal volume or region484of the housing487. In the configuration ofFIG. 4F, the cover488may be nearly the same size as the display485and, thus, the display485may be used to provide graphical output for nearly the entire cover488. Another potential advantage is that the housing477may be formed to more closely fit the outer dimensions of the adaptive input row480. As shown inFIG. 4F, the circuitry472may be coupled to elements of the stack by the flexible conduit486. The flexible conduit486may enter an interior volume of the housing487through passage414. To prevent the ingress of liquid or other potential contaminants, a gasket or seal428may be disposed between the flexible conduit486and the passage414.

FIGS. 5A and 5Bdepict adaptive input rows having alternative force layers that may be used to estimate the force of a touch. The example force layers ofFIGS. 5A and 5Bmay also be used to estimate the location of a touch, with or without the use of a separate touch sense layer. The embodiments depicted inFIGS. 5A and 5Bmay be installed or positioned in an opening of a housing similar to the examples described above with respect toFIGS. 4A-4F.

FIG. 5Adepicts an example adaptive input row500having a cover502positioned over a display504, which may include an OLED display similar to the examples described above with respect toFIGS. 4A-4B. A force layer508is positioned below the display504on a side opposite the cover502. The force layer508may be supported by structure505, which may be integrated with the device housing or may be formed from a separate component.

In the example ofFIG. 5A, the force layer508includes a capacitive-type force-sensing structure510. Specifically, the force layer508includes two force-sensing structures510or nodes disposed near opposite ends of the adaptive input row500. Each force-sensing structure510includes an upper capacitive plate or electrode511that is separated from a lower capacitive plate or electrode512by a compressible layer515. When a force is applied to the cover502, one or both of the compressible layers515may compress or deflect, which results in the upper electrode511moving closer to the lower electrode512. The amount of deflection may be measured by monitoring or measuring a change in capacitance between the electrodes511,512. The estimated amount of deflection may be correlated to an estimated force, which may be used to estimate the force of the touch on the cover502. Accordingly, the force layer508may be used to compute or estimate the magnitude of an applied force on the adaptive input row500.

Additionally or alternatively, the force layer508may be used to estimate a location of the touch along the length of the adaptive input row500. For example, a relative displacement may be measured or computed between the force-sensing structures510positioned on opposite ends of the adaptive input row500. By comparing the relative displacement between the two force-sensing structures510, an approximate location of the applied force or touch may be determined. For example, if the displacement of each force-sensitive structure510is approximately the same, the location of the touch may be estimated to be near the center of the adaptive input row500(provided that the force-sensitive structures510are evenly spaced and have nearly the same compressibility). If, however, the displacement of the force-sensitive structure510on the left is greater than the displacement of the force-sensitive structure510on the right, the location of the touch may be estimated to be toward the left-end of the adaptive input row500.

The location information provided using the force layer508may be used alone or in conjunction with information provided by a separate touch layer to determine the force and location of one or more touches on the adaptive input row500. The force layer508may be particularly beneficial when estimating an amount of force applied by two or more touches on the cover502. Using location information estimated using a touch layer, the relative displacement of the two force-sensitive structures may be used to estimate an amount of force that is applied by each of the two or more touches.

FIG. 5Bdepicts an adaptive input row550having another example force layer558that may be used to estimate a magnitude and/or a location of a force on the adaptive input row550. Similar to the previous example, the adaptive input row550includes a display554positioned under a cover552. The force layer558is positioned below the display554and supported by structure555.

In the present embodiment, the force layer558includes a linear array of force-sensitive structures or force nodes560(referred to herein as nodes). Each of the nodes560may be formed from a piezoresistive, piezoelectric, or other strain-sensitive material that is configured to exhibit a change in an electrical property in response to a strain or deflection. Alternatively, each of the nodes560may be formed from a capacitive electrode stack, similar to the example described above with respect toFIG. 5A. In particular, each of the nodes560may include a pair of capacitive plates or electrodes that are separated by a compressible material that is configured to compress or deflect in response to the force of a touch on the cover552.

In the example ofFIG. 5B, the nodes560are arranged in a one-dimensional array along the length of the adaptive input row550. In some embodiments, the one-dimensional array of nodes560is configured to detect a localized deflection of the adaptive input row550to estimate both a magnitude of force and a location of the touch. For example, the cover552, display554, and any other layers or substrates of the stack may be flexible enough to deflect or bow over a localized region, which may result in fewer than all of the nodes560being deflected in accordance with the localized region. In this scenario, it may be advantageous that the structure555be substantially rigid and not deflect significantly in response to the force of a touch. In some embodiments, a sub-group of the nodes560experiences the localized deflection or bowing of the layers positioned above the force layer558. Over the sub-group of affected nodes560, the deflection may be greatest for those nodes560closest to the location of the touch. Using the relative deflection or output of the affected nodes560, the location of the touch may be estimated, as well as the magnitude of the applied force. In a similar fashion, the array of nodes560may be used to measure the location and magnitude of multiple touches on the adaptive input row550.

WhileFIG. 5Bdepicts an array of nodes560arranged along a single (length) direction, other embodiments may include an array of nodes arranged along two directions (e.g., along both length and width of the adaptive input row similar to as depicted in the force layer308ofFIG. 3). A two-dimensional node configuration may be used to determine a two-dimensional location of the touch. In particular, a two-dimensional force node array may be used to estimate both a length-wise and width-wise location of a touch.

In some embodiments, a force layer may also function as a seal or barrier to prevent or reduce the ingress of moisture, liquid, or other foreign matter.FIGS. 6A-6Cdepict example configurations of adaptive input rows having a force layer that is configured to both estimate an applied force and form a gasket or seal around a portion of the adaptive input row. Various components, including a touch layer and other components, are omitted from the simplified illustration ofFIGS. 6A-6Cfor clarity and to reduce redundancy. However, various components and functionality expressly described with respect to other embodiments, including touch sensing and the use of a touch layer, may be combined with the features ofFIGS. 6A-6C.

As shown inFIG. 6A, the adaptive input row600includes a force layer608positioned under a display604and cover602. In the present embodiment, the force layer608is formed from a set of capacitive force-sensing structures610. Each force-sensing structure610may include a pair of capacitive plates or electrodes611,612separated by a compressible layer615. The force-sensing structures610may operate in accordance with a capacitive force-sensing scheme consistent with the examples described above with respect toFIGS. 3 and 5A.

In the present embodiment, the force-sensing structures610may also form a gasket or seal around a portion of the adaptive input row600. For example, the force-sensing structures610may be bonded or otherwise fixed with respect to adjacent layers (in this case display604and support structure630) using an adhesive or other sealant that is configured to form a liquid-resistant barrier. For example, the set of force-sensing structures610may be bonded to a single layer of pressure-sensitive adhesive (PSA) that forms a liquid-resistant barrier on at least that side of the set of force-sensing structures610. In some embodiments, the adhesive joint may also include an intermediate substrate or layer that facilitates the bond with an adhesive layer. The set of force-sensing structures610may be similarly bonded/adhered on both sides to form a substantially liquid-resistant barrier.

Additionally, the compressible layer615may also be configured to reduce the risk of contamination. For example, the compressible layer615may be formed from a material that acts as a liquid and contaminant barrier as well as provides the desired compressibility for the operation of the force layer608. In some cases, the compressible layer615may be formed from an elastomer material, such as silicone, Viton, Buna-N, ethylene propylene or other similar material. The compressible layer615may also be formed from a solid material, a closed-cell foam or other liquid-resistant form of material. The compressible layer615may be bonded to or otherwise attached to the pair of electrodes611,612to form a substantially liquid-resistant seal or barrier.

As shown inFIG. 6A, the force-sensing structures610encircle a portion of the adaptive input row600located under the display604and above the support structure630. The layout or position of the force-sensing structures610may be similar to as shown inFIG. 6C(which is a cross-sectional view of the force-sensing structures660inFIG. 6B). In particular, each force-sensing structure610may form a portion or segment of a wall that functions as a barrier to seal an interior volume or interior portion of the adaptive input row600.

FIG. 6Bdepicts an adaptive input row650having a display654positioned below a cover652. The adaptive input row650also includes a force layer (658ofFIG. 6C), which actually surrounds a region occupied by the display654. The adaptive input row650, in this example, is formed around the perimeter of the display654. The force layer (658ofFIG. 6C) includes a set of force-sensing structures660that are positioned between the cover652and the support structure670. By forming the force layer658by a series or array of force-sensing structures660that are positioned around the perimeter of the display654, the force layer658may form a protective barrier or seal for an internal volume or portion of the adaptive input row650.

Similar to the previous examples, the force-sensing structures660include a pair of capacitive plates or electrodes661,662separated by a compressible layer665. Similar to the example described above with respect toFIG. 6A, the force-sensing structures660may be configured to form a gasket or seal to prevent the ingress of moisture, liquid, or other potential contaminants. In the example ofFIG. 6B, the force-sensing structures660cooperate to form a seal or gasket around the entire display654. In some cases, this configuration reduces or eliminates the need to pot or encapsulate the edges of the display654.

FIG. 6Cdepicts a cross-sectional view of the force layer658ofFIG. 6Balong section B-B. In the simplified illustration ofFIG. 6C, the display654and other internal components have been omitted for clarity. In the example ofFIG. 6C, the force layer658includes multiple force-sensing structures that together form a segmented barrier around the internal volume680of the adaptive input row650. The small gaps682between each force-sensing structure660or segment may be filled with a sealant or similar material to prevent the ingress of moisture, liquid or other potential contaminants. In some embodiments, the small gaps682are filled with the same material that forms the compressible layer665of the force-sensing structures660.

In the configuration ofFIG. 6C, the force-sensing structures660or segments may be configured to produce a distinct or independent force-sensing output in response to a force of a touch on the cover652. In some embodiments, the relative output of the force-sensing structures660may be used to estimate a location or region of potential locations of the touch. For example, if one or more force-sensing structures660toward the right end of the segmented structure experience a greater deflection than force-sensing structures660on the left end, the location of the touch(es) may be estimated to be in a region located toward the right-end of the adaptive input row650. In some embodiments, the force-sensing structures660may be used to provide two-dimensional touch or force-location information.

FIGS. 7 and 8depict alternative electronic devices that may include an adaptive input row. In particular,FIG. 7depicts a keyboard device700that includes an adaptive input row710. The adaptive input row710is positioned within an opening in a housing702similar to other embodiments described herein. The adaptive input row710may have a color and/or finish that matches the color and/or finish of the housing702. For example, the adaptive input row710may be painted or otherwise treated to match the color and appearance of an aluminum or plastic housing702.

As shown inFIG. 7, the adaptive input row710is also located adjacent to a set of keys720. In some embodiments, the adaptive input row710may be located adjacent to a number row of the set of keys720. The location of the adaptive input row710may be similar to the location of a traditional function row of a traditional keyboard layout.

FIG. 8depicts an example desktop computing device800having a keyboard850and a display840. The display840may function as a primary display of the device, similar to the primary display described above with respect toFIG. 1. Computing electronics, including one or more processing units and computer memory, may be located in the keyboard device850, the display840, and/or a separate enclosed housing or tower not depicted. As shown inFIG. 8, the device800includes an adaptive input row810located in the housing of the keyboard device850. The placement and operation of the adaptive input row810may be in accordance with the various examples provided herein.

FIG. 9depicts a schematic representation of an example device having an adaptive input row. The schematic representation depicted inFIG. 9may correspond to components of the portable electronic device depicted inFIGS. 1, 7, and 8, described above However,FIG. 9may also more generally represent other types of devices that include an adaptive input row or similar device.

As shown inFIG. 9, a device900includes a processing unit902operatively connected to computer memory904and computer-readable media906. The processing unit902may be operatively connected to the memory904and computer-readable media906components via an electronic bus or bridge. The processing unit902may include one or more computer processors or microcontrollers that are configured to perform operations in response to computer-readable instructions. The processing unit902may include the central processing unit (CPU) of the device. Additionally or alternatively, the processing unit902may include other processors within the device including application specific integrated chips (ASIC) and other microcontroller devices.

The memory904may include a variety of types of non-transitory computer-readable storage media, including, for example, read access memory (RAM), read-only memory (ROM), erasable programmable memory (e.g., EPROM and EEPROM), or flash memory. The memory904is configured to store computer-readable instructions, sensor values, and other persistent software elements. Computer-readable media906also includes a variety of types of non-transitory computer-readable storage media including, for example, a hard-drive storage device, solid state storage device, portable magnetic storage device, or other similar device. The computer-readable media906may also be configured to store computer-readable instructions, sensor values, and other persistent software elements.

In this example, the processing unit902is operable to read computer-readable instructions stored on the memory904and/or computer-readable media906. The computer-readable instructions may adapt the processing unit902to perform the operations or functions described above with respect toFIGS. 2A-2J. The computer-readable instructions may be provided as a computer-program product, software application, or the like.

As shown inFIG. 9, the device900also includes a display908and an input device909. The display908may include a liquid-crystal display (LCD), organic light-emitting diode (OLED) display, light-emitting diode (LED) display, or the like. If the display908is an LCD, the display may also include a backlight component that can be controlled to provide variable levels of display brightness. If the display908is an OLED or LED type display, the brightness of the display908may be controlled by modifying the electrical signals that are provided to display elements.

The input device909is configured to provide user input to the device900. The input device909may include, for example, a touch screen, touch button, keyboard, key pad, or other touch input device. The device900may include other input devices, including, for example, a power button, volume buttons, home buttons, scroll wheels, and camera buttons.

As shown inFIG. 9, the device900also includes an adaptive input row910. The adaptive input row910may be operatively coupled to the processing unit902and memory904in order to provide user input similar to the input device909. The adaptive input row910may also be configured to provide an adaptable display that may be controlled by the processing unit902or other aspect of the device900. In general, the adaptive input row910may be configured to operate in accordance with the various examples provided herein.