WO2014003759A1 - Écran d'affichage tactile et procédé - Google Patents

Écran d'affichage tactile et procédé Download PDF

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Publication number
WO2014003759A1
WO2014003759A1 PCT/US2012/044637 US2012044637W WO2014003759A1 WO 2014003759 A1 WO2014003759 A1 WO 2014003759A1 US 2012044637 W US2012044637 W US 2012044637W WO 2014003759 A1 WO2014003759 A1 WO 2014003759A1
Authority
WO
WIPO (PCT)
Prior art keywords
touch
sensitive apparatus
interface
disposed
touch sensors
Prior art date
Application number
PCT/US2012/044637
Other languages
English (en)
Inventor
Aaron Robert Allen
Original Assignee
Blackberry Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Blackberry Limited filed Critical Blackberry Limited
Priority to CA2877893A priority Critical patent/CA2877893A1/fr
Priority to EP12879736.2A priority patent/EP2867752A4/fr
Priority to KR20157001717A priority patent/KR20150031445A/ko
Priority to PCT/US2012/044637 priority patent/WO2014003759A1/fr
Priority to CN201280074265.5A priority patent/CN104412205A/zh
Publication of WO2014003759A1 publication Critical patent/WO2014003759A1/fr

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0445—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04103—Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices

Definitions

  • the present disclosure relates to electronic devices including, but not limited to, portable electronic devices having touch-sensitive displays and their control.
  • Portable electronic devices include several types of devices including mobile stations such as simple cellular telephones, smart telephones (smart phones), Personal Digital Assistants (PDAs), tablet computers, and laptop computers, with wireless network communications or near-field communications connectivity such as Bluetooth® capabilities.
  • mobile stations such as simple cellular telephones, smart telephones (smart phones), Personal Digital Assistants (PDAs), tablet computers, and laptop computers, with wireless network communications or near-field communications connectivity such as Bluetooth® capabilities.
  • Portable electronic devices such as PDAs, or tablet computers are generally intended for handheld use and ease of portability. Smaller devices are generally desirable for portability.
  • a touch-sensitive display also known as a touchscreen display, is particularly useful on handheld devices, which are small and may have limited space for user input and output. The information displayed on the display may be modified depending on the functions and operations being performed.
  • FIG. 1 is a block diagram of a portable electronic device in accordance with the disclosure.
  • FIG. 2 is a front view of a portable electronic device in accordance with the disclosure.
  • FIG. 3 is a flowchart illustrating an example of a method of manufacturing a cover of a touch-sensitive display in accordance with the disclosure.
  • FIG. 4 and FIG. 5 are cross sections of a cover of a touch-sensitive display in accordance with the disclosure.
  • FIG. 6 is a bottom view of a cover of a touch-sensitive display in accordance with the disclosure.
  • FIG. 7 is a cross section of a touch-sensitive display including a cover in accordance with the disclosure.
  • a touch-sensitive apparatus that includes a first material, a second material joined to the first material such that the first material and the second material are substantially flat at an interface between the first material and the second material, and first touch sensors disposed continuously across the interface from the first material to the second material .
  • the disclosure generally relates to an electronic device, such as a portable electronic device as described herein.
  • electronic devices include mobile, or handheld, wireless communication devices such as pagers, cellular phones, cellular smart-phones, wireless organizers, personal digital assistants, wirelessly enabled notebook computers, tablet computers, mobile internet devices, electronic navigation devices, and so forth.
  • the electronic device may be a portable electronic device without wireless communication capabilities, such as a handheld electronic game, digital photograph album, digital camera, media player, e-book reader, and so forth.
  • FIG. 1 A block diagram of an example of a portable electronic device 100 is shown in FIG. 1.
  • the portable electronic device 100 includes multiple components, such as a processor 102 that controls the overall operation of the portable electronic device 100. Communication functions, including data and voice communications, are performed through a communication subsystem 104. Data received by the portable electronic device 100 is decompressed and decrypted by a decoder 106.
  • the communication subsystem 104 receives messages from and sends messages to a wireless network 150.
  • the wireless network 150 may be any type of wireless network, including, but not limited to, data wireless networks, voice wireless networks, and networks that support both voice and data communications.
  • a power source 142 such as one or more rechargeable batteries or a port to an external power supply, powers the portable electronic device 100.
  • the processor 102 interacts with other components, such as a Random Access Memory (RAM) 108, memory 110, a touch-sensitive display 118, one or more actuators 120, one or more force sensors 122, an auxiliary input/output (I/O) subsystem 124, a data port 126, a speaker 128, a microphone 130, short-range communications 132 and other device subsystems 134.
  • RAM Random Access Memory
  • the touch-sensitive display 118 includes a display 112 and touch sensors 114 that are coupled to at least one controller 116 that is utilized to interact with the processor 102. Input via a graphical user interface is provided via the touch-sensitive display 118.
  • Information such as text, characters, symbols, images, icons, and other items that may be displayed or rendered on a portable electronic device, is displayed on the touch-sensitive display 118 via the processor 102.
  • the processor 102 may also interact with an accelerometer 136 that may be utilized to detect direction of gravitational forces or gravity-induced reaction forces.
  • the portable electronic device 100 may utilize a Subscriber Identity Module or a Removable User Identity Module (SIM/RUIM) card 138 for communication with a network, such as the wireless network 150.
  • SIM/RUIM Removable User Identity Module
  • user identification information may be programmed into memory 110.
  • the portable electronic device 100 includes an operating system 146 and software programs, applications, or components 148 that are executed by the processor 102 and are typically stored in a persistent, updatable store such as the memory 110. Additional applications or programs may be loaded onto the portable electronic device 100 through the wireless network 150, the auxiliary I/O
  • subsystem 124 the data port 126, the short-range communications subsystem 132, or any other suitable subsystem 134.
  • a received signal such as a text message, an e-mail message, or web page download is processed by the communication subsystem 104 and input to the processor 102.
  • the processor 102 processes the received signal for output to the display 112 and/or to the auxiliary I/O subsystem 124.
  • a subscriber may generate data items, for example e-mail messages, which may be transmitted over the wireless network 150 through the communication subsystem 104.
  • the speaker 128 outputs audible information converted from electrical signals
  • the microphone 130 converts audible information into electrical signals for processing .
  • the touch-sensitive display 118 may be a capacitive touch-sensitive display that includes one or more capacitive touch sensors 114.
  • the capacitive touch sensors may comprise any suitable material, such as indium tin oxide (ITO).
  • One or more touches may be detected by the touch-sensitive display 118.
  • the processor 102 may determine attributes of the touch, including a location of the touch.
  • Touch location data may include data for an area of contact or data for a single point of contact, such as a point at or near a center of the area of contact.
  • the location of a detected touch may include x and y components, e.g., horizontal and vertical components, respectively, with respect to one's view of the touch-sensitive display 118.
  • a touch may be detected from any suitable input member, such as a finger, thumb, appendage, or other objects, for example, a stylus (active or passive), pen, or other pointer, depending on the nature of the touch-sensitive display 118. Multiple simultaneous touches may be detected.
  • One or more gestures may also be detected by the touch-sensitive display 118.
  • a gesture such as a swipe, also known as a flick, is a particular type of touch on a touch-sensitive display 118 and may begin at an origin point and continue to an end point, for example, a concluding end of the gesture.
  • a gesture may be identified by attributes of the gesture, including the origin point, the end point, the distance travelled, the duration, the velocity, and the direction, for example.
  • a gesture may be long or short in distance and/or duration. Two points of the gesture may be utilized to determine a direction of the gesture.
  • a gesture may also include a hover.
  • a hover may be a touch at a location that is generally unchanged over a period of time or is associated with the same selection item for a period of time.
  • the optional actuator(s) 120 may be depressed or activated by applying sufficient force to the touch-sensitive display 118 to overcome the actuation force of the actuator 120.
  • the actuator(s) 120 may be actuated by pressing anywhere on the touch-sensitive display 118.
  • the actuator(s) 120 may provide input to the processor 102 when actuated . Actuation of the actuator(s) 120 may result in provision of tactile feedback.
  • the touch-sensitive display 118 is depressible, pivotable, and/or movable. Such a force may actuate the
  • the touch-sensitive display 118 may, for example, float with respect to the housing of the portable electronic device, i.e., the touch-sensitive display 118 may not be fastened to the housing .
  • a mechanical dome switch actuator may be utilized .
  • tactile feedback is provided when the dome collapses due to imparted force and when the dome returns to the rest position after release of the switch.
  • the actuator 120 may comprise one or more piezoelectric (piezo) devices that provide tactile feedback for the touch-sensitive display 118.
  • Optional force sensors 122 may be disposed in conjunction with the touch-sensitive display 118 to determine or react to forces applied to the touch- sensitive display 118.
  • the force sensor 122 may be disposed in line with a piezo actuator 120.
  • the force sensors 122 may be force-sensitive resistors, strain gauges, piezoelectric or piezoresistive devices, pressure sensors, quantum tunneling composites, force-sensitive switches, or other suitable devices. Force as utilized throughout the specification, including the claims, refers to force
  • force information related to a detected touch may be utilized to select information, such as information associated with a location of a touch.
  • a touch that does not meet a force threshold may highlight a selection option, whereas a touch that meets a force threshold may select or input that selection option.
  • Selection options include, for example, displayed or virtual keys of a keyboard; selection boxes or windows, e.g., "cancel,” “delete,” or “unlock”; function buttons, such as play or stop on a music player; and so forth.
  • Different magnitudes of force may be associated with different functions or input. For example, a lesser force may result in panning, and a higher force may result in zooming.
  • FIG. 2 A front view of an example of the electronic device 100 is shown in FIG. 2.
  • the electronic device 100 includes the touch-sensitive display 118.
  • a housing 202 and the touch-sensitive display 118 enclose components such as the
  • the touch-sensitive display 118 includes a display area 204 in which information may be displayed, and a non-display area 206 extending around the periphery of the display area 204.
  • the display area 204 of the touch-sensitive display 118 may be generally centered in the housing 202.
  • the non-display area 206 extends around the periphery of the display area 204.
  • the display area 204 generally corresponds to the area of the display 112. Information is not displayed in the non-display area 206 by the display, which non-display area 206 is utilized to accommodate, for example, electronic traces or electrical connections, adhesives or other sealants, and/or protective coatings around the edges of the display area 204.
  • the non-display area 206 may be referred to as an inactive area and is not part of the physical housing or frame of the electronic device. Typically, no pixels of the display are in the non-display area 206, thus no image can be displayed by the display 112 in the non-display area 206.
  • a secondary display not part of the primary display 112, may be disposed under the non-display area 206.
  • Touch sensors are disposed in the non-display area 206, which touch sensors may be extended from the touch sensors 114 in the display area 204.
  • a touch including a gesture, may be associated with the display area 204, the non-display area 206, or both areas.
  • the touch sensors 114 may extend across substantially the entire non-display area 206 or may be disposed in only part of the non-display area 206.
  • an opaque ink may be printed around the outer periphery of the cover of the touch-sensitive display 118.
  • the opaque ink may be any suitable color and may, for example, match the color of the housing 202.
  • the opaque ink may be utilized to cover components such as the electronic traces, electrical connections, adhesives or other sealants in the non-display area 206 around the edges of the display area 204.
  • a step is formed on the underside, or the side disposed closest to the display 112, of the cover by the ink that is printed on the cover. The step is located at the interface between the display area 204 and the non-display area 202. The color of the ink affects the thickness of the printed ink, and thus the size of the step.
  • black ink is approximately 8 prn thick and white ink is approximately 20 prn thick.
  • the touch sensors and traces may be made of brittle material such as ITO, the touch sensors and traces that are printed onto the underside of the cover are prone to cracking or breaking if the step on the underside of the cover is too large, e.g., when the printed ink is too thick, such as a step greater than 4 pm.
  • a flowchart illustrating an example of a method of manufacturing a cover of the portable electronic device 100 is shown in FIG. 3.
  • a first material is joined 302 to a second material.
  • the first material may be, for example, an optically clear, translucent, or transparent glass that is utilized to cover the display area 204 of the touch-sensitive display 118.
  • the second material may be a colored glass, such as black glass, that is sized to extend around the periphery of the first glass, for example, to cover the non-display area 206.
  • the first material and the second material may be joined or fused such that the underside of the first material and the second material is substantially flat or planar, including across the interface.
  • the thicknesses of the first material and the second material are substantially the same and a lip or step is not present between the first material and the second material, or the lip or step is nominal or small such that touch sensors formed on the underside of the cover are not prone to cracking or breaking due to the step.
  • a step less than 4 pm thick is more likely to resist cracking than a step 6 pm thick or larger.
  • the step may be, for example, less than 4 pm .
  • the step may be less than 3 microns.
  • the step may be less than 2 microns.
  • the step may be less than 1 micron.
  • the size of the step may be reduced based on the joining or fusing process and any postprocessing .
  • the first material and the second material may be fused together by, for example, partially melting the first material and the second material and joining the two.
  • the first material may be partially melted, barely or nearly solid, or solid and placed, for example, in a mold .
  • a molten or melted second material may be added to fill the mold.
  • the fusing may be controlled to minimize the area comprising both materials in a fused or combined state. Any step or lip at the interface between the first material and the second material may be removed, for example, by fine grinding .
  • Touch sensors are formed 304 on the underside of the first material and the second material such that the touch sensors extend continuously across the interface from the first material to the second material .
  • the touch sensors may be formed, for example, by depositing conductive material, such as ITO, on the underside of the first material and the second material, followed by, for example, laser patterning of the conductive material .
  • FIG. 4 is a lengthwise cross section
  • FIG. 5 which is a widthwise cross section.
  • the first material 402 which, in the example of FIG. 4 and FIG. 5, is generally rectangular and is sized to cover the display area 204 of the touch-sensitive display 118.
  • a second material 404 which, in the example of FIG. 4 and FIG. 5, extends around the first material, along the outer periphery of the first material 402.
  • the thickness of the second material 404 is substantially the same as the thickness of the first material 402.
  • the second material 404 is fused to the first material 402.
  • the first material 402 and the second material 404 are substantially flat at their interface 406.
  • the underside of the fused cover 400 is substantially planar as described above.
  • the top or outermost side of the fused cover 400 is also substantially planar across the interface of the first material and the second material, and may be formed in a similar way as the underside is formed and/or further processed.
  • the touch sensors 408, which may be, for example, sense lines, are disposed on the planar underside of the cover 400.
  • the touch sensors 408 extend continuously across the interface 406 from the first material 402, e.g., optically clear glass, to the second material 404, e.g ., the colored glass.
  • FIG. 6 An underside or bottom view of the cover of the touch-sensitive display is illustrated in FIG. 6.
  • a flex connector 602 is coupled to the touch sensors 408 and is utilized to couple the touch sensors 408 to the controller 116.
  • FIG. 7 A cross section the touch-sensitive display 118 including the cover 400 is illustrated in FIG. 7.
  • the touch sensors 408 are disposed on the planar underside of the joined or fused first material 402 and second material 404.
  • Scanning touch sensors 702 are disposed on a substrate 706 and are spaced from the touch sensors 408 by a dielectric material 704 disposed between the touch sensors 408 and the scanning touch sensors 702.
  • the touch sensors 408 and the touch sensors 702 are coupled to the controller 116 utilizing, for example, one or more flex connectors 602, to facilitate detection of touches, for example, on the cover 400.
  • the cover that is manufactured by fusing two materials together, such as an optically clear glass and a colored glass, is substantially flat or planar. Without a step or lip at the interface between the two materials, touch sensors or traces that are deposited on the underside of the cover, are less susceptible to cracking or breaking .
  • Many different colors of glass may be utilized and may be fused as illustrated in the FIG. 4 through FIG. 7. Alternatively, colored glass may be fused in a pattern to include artwork or other displayed features on the cover.
  • a touch-sensitive apparatus includes a first material, a second material joined to the first material such that the first material and the second material are substantially flat at an interface between the first material and the second material, and first touch sensors disposed continuously across the interface from the first material to the second material .
  • a touch-sensitive apparatus includes a first material disposed in a first plane, a second material disposed in the first plane and disposed along the outer perimeter of the first material such that the first material and the second material are substantially flat at an interface between the first material and the second material, and a touch sensor disposed continuously from the first material to the second material at the interface.
  • a method includes joining a first material to a second material such that the first material and the second material are substantially flat at an interface between the first material and the second material, and forming touch sensors on the first material and the second material such that the touch sensors are disposed continuously across the interface from the first material to the second material.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • User Interface Of Digital Computer (AREA)
  • Position Input By Displaying (AREA)

Abstract

L'invention concerne un appareil tactile comprenant un premier matériau, a second matériau assemblé au premier matériau de sorte que le premier et le second matériau soient sensiblement plats dans toute une interface comprise entre le premier et le second matériau, et des premiers capteurs tactiles disposés en continu dans toute l'interface du premier au second matériau.
PCT/US2012/044637 2012-06-28 2012-06-28 Écran d'affichage tactile et procédé WO2014003759A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
CA2877893A CA2877893A1 (fr) 2012-06-28 2012-06-28 Ecran d'affichage tactile et procede
EP12879736.2A EP2867752A4 (fr) 2012-06-28 2012-06-28 Écran d'affichage tactile et procédé
KR20157001717A KR20150031445A (ko) 2012-06-28 2012-06-28 터치 감응 디스플레이 및 방법
PCT/US2012/044637 WO2014003759A1 (fr) 2012-06-28 2012-06-28 Écran d'affichage tactile et procédé
CN201280074265.5A CN104412205A (zh) 2012-06-28 2012-06-28 触摸敏感显示器和方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2012/044637 WO2014003759A1 (fr) 2012-06-28 2012-06-28 Écran d'affichage tactile et procédé

Publications (1)

Publication Number Publication Date
WO2014003759A1 true WO2014003759A1 (fr) 2014-01-03

Family

ID=49783694

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2012/044637 WO2014003759A1 (fr) 2012-06-28 2012-06-28 Écran d'affichage tactile et procédé

Country Status (5)

Country Link
EP (1) EP2867752A4 (fr)
KR (1) KR20150031445A (fr)
CN (1) CN104412205A (fr)
CA (1) CA2877893A1 (fr)
WO (1) WO2014003759A1 (fr)

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Also Published As

Publication number Publication date
CA2877893A1 (fr) 2014-01-03
EP2867752A1 (fr) 2015-05-06
EP2867752A4 (fr) 2016-02-24
KR20150031445A (ko) 2015-03-24
CN104412205A (zh) 2015-03-11

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