WO2013037238A1 - 视觉接口系统 - Google Patents

视觉接口系统 Download PDF

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Publication number
WO2013037238A1
WO2013037238A1 PCT/CN2012/078412 CN2012078412W WO2013037238A1 WO 2013037238 A1 WO2013037238 A1 WO 2013037238A1 CN 2012078412 W CN2012078412 W CN 2012078412W WO 2013037238 A1 WO2013037238 A1 WO 2013037238A1
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WO
WIPO (PCT)
Prior art keywords
passive matrix
display device
signal
information
substrate
Prior art date
Application number
PCT/CN2012/078412
Other languages
English (en)
French (fr)
Inventor
蔡熊光
Original Assignee
Tsai Hsiung-Kuang
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 Tsai Hsiung-Kuang filed Critical Tsai Hsiung-Kuang
Priority to CN201280044536.2A priority Critical patent/CN103797450B/zh
Priority to KR1020147007412A priority patent/KR101641802B1/ko
Priority to US14/344,596 priority patent/US9335849B2/en
Priority to JP2014530079A priority patent/JP6033308B2/ja
Priority to EP12831451.5A priority patent/EP2757445B1/en
Publication of WO2013037238A1 publication Critical patent/WO2013037238A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H04B5/70—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes
    • H04B5/72—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for local intradevice communication
    • 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
    • G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
    • G06F3/0354—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
    • G06F3/03545—Pens or stylus
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/14—Handling requests for interconnection or transfer
    • G06F13/20—Handling requests for interconnection or transfer for access to input/output bus
    • G06F13/28—Handling requests for interconnection or transfer for access to input/output bus using burst mode transfer, e.g. direct memory access DMA, cycle steal
    • 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
    • G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
    • G06F3/038—Control and interface arrangements therefor, e.g. drivers or device-embedded control circuitry
    • 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
    • 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
    • G06F3/0412—Digitisers structurally integrated in a display
    • 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
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • G06F3/04166—Details of scanning methods, e.g. sampling time, grouping of sub areas or time sharing with display driving
    • 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
    • G06F3/0446—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
    • 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
    • G06F3/046—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by electromagnetic means
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
    • 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
    • G06F2203/04101—2.5D-digitiser, i.e. digitiser detecting the X/Y position of the input means, finger or stylus, also when it does not touch, but is proximate to the digitiser's interaction surface and also measures the distance of the input means within a short range in the Z direction, possibly with a separate measurement setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H04B5/20—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by the transmission technique; characterised by the transmission medium
    • H04B5/22—Capacitive coupling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H04B5/20—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by the transmission technique; characterised by the transmission medium
    • H04B5/24—Inductive coupling

Definitions

  • the present invention relates to a human interface system, and more particularly to a visual interface system. Background technique
  • touch screen panels have been widely used in general consumer electronic goods, such as smart phones, digital cameras, digital music players (MP3), personal digital assistants (PDAs), satellite navigators (GPS), and handheld devices.
  • MP3 digital music players
  • PDAs personal digital assistants
  • GPS satellite navigators
  • a hand-held PC even a brand new Ultra Mobile PC (UMPC), etc., is integrated into a display screen to become a touch display device.
  • UMPC Ultra Mobile PC
  • NFC Near Field Communication
  • IC cards such as access control, tickets, tickets or credit card payments.
  • An object of the present invention is to provide a visual interface system capable of achieving pen writing and touch without using another touch panel panel, and also applicable to short-range wireless communication.
  • the present invention can be implemented by the following technical solutions.
  • a visual interface system of the present invention includes an operating device and a passive matrix display device.
  • the passive matrix display device includes a first substrate, a display surface, and a second substrate.
  • the display surface is located on a first side of the first substrate.
  • the second substrate is located on a second side of the first substrate opposite to the first side and is opposite to the first substrate.
  • the transmit signal is transmitted to the passive matrix display device.
  • the passive matrix display device has at least one electrode disposed on the first substrate or the second substrate, and an encoded signal is applied to the electrode and coupled to the operating device from the electrode by capacitive or inductive.
  • the electrode is a separate electrode or at least one of a plurality of electrodes of the passive matrix display device.
  • the passive matrix display device processes the transmitted signal to obtain a message including touch information, command information, identification information, transaction information, or archive information.
  • the touch information is relative position information of the operating device on the display surface
  • the transmission signal is a signal from the first substrate and the second substrate.
  • the visual interface system further includes at least one relay device.
  • the relay device processes the transmitted signal to obtain a relay processing signal, and the relay processing signal can be transmitted to other devices or passive matrix display devices other than the visual interface system.
  • the transmission signal may include touch information, instruction information, identification information, transaction information, file information or other information.
  • the relay processing signal may include touch information, instruction information, identification information, transaction information, file information or other information.
  • the relay processing signal is processed by a device other than the visual interface system or the passive matrix display device to obtain a message, which may include touch information, command information, identification information, transaction information, file information or other information.
  • the visual interface system further includes a mode triggering component, a user or operating device triggering mode triggering component to activate the passive matrix display device to enter an operational mode to transmit the encoded signal.
  • the visual interface system when the operating device is a user, the visual interface system further includes a sensing component, and the user simultaneously contacts the display surface and the sensing component to transmit the transmission signal to the sensing component.
  • the sensing component has a mode triggering function, and the user can contact the sensing component to activate the passive matrix display device to enter a working mode to transmit the encoded signal.
  • the passive matrix display device may further include a display medium layer sandwiched between the first substrate and the second substrate.
  • the passive matrix display device may further include a plurality of column electrodes disposed on the second side of the first substrate, and a plurality of row electrodes disposed on a side of the second substrate facing the first substrate, and the column electrodes and the The row electrodes are staggered.
  • the encoded signal when the operating device is operated on the display surface of the passive matrix display device, the encoded signal can be coupled from the passive matrix display device to the operating device, and the operating device can receive the code. Signal to get a transmission signal.
  • the transmission signal can be directly or indirectly transmitted to the passive matrix display device, and can be processed by the operating device, and/or processed by at least one relay device, and/or a passive matrix display device in the process.
  • the processing enables the passive matrix display device to obtain information contained in the encoded signal and the transmitted signal, such as touch information, command information, identification information, transaction information, file information, or other information.
  • the visual interface system of the present invention can be directly applied to a system including a passive matrix structure, such as a passive matrix liquid crystal display device, a non-volatile display device, a touch display device, or a passive matrix organic light emitting diode display device.
  • a passive matrix structure such as a passive matrix liquid crystal display device, a non-volatile display device, a touch display device, or a passive matrix organic light emitting diode display device.
  • integrated display, touch and data transmission thereby making products lighter and thinner, and reducing costs to enhance product competitiveness.
  • the present invention couples the encoded signal to an external operating device instead of directly reading the encoded signal by the passive matrix display device, so that no change in layout is required on the passive matrix display device, such as in a touch application. There is no need to add a capacitive sensing component to the display panel to detect changes in external capacitance values, thereby reducing cost and shortening the process.
  • FIG. 1 is a functional block diagram of a visual interface system according to a first embodiment of the present invention
  • FIG. 2 is a side view of a passive matrix display device according to a first embodiment of the present invention
  • FIG. 3A is a perspective view of the passive matrix display device of FIG. 2;
  • 3B is a schematic view showing the arrangement of a plurality of column electrodes and a plurality of row electrodes of FIG. 3A;
  • FIG. 4 is a schematic diagram of signals of two adjacent columns of electrodes of FIG. 3B;
  • FIG. 5 is a timing chart of the encoded signals transmitted by the column electrodes of the first embodiment of the present invention
  • FIG. 6 is a schematic diagram of the appearance of the passive matrix display device according to the first embodiment of the present invention.
  • Figure 7 is a schematic diagram of a passive matrix display device and a user as an operating device according to a first embodiment of the present invention
  • FIG. 8 is a functional block diagram of a visual interface system according to a second embodiment of the present invention.
  • DS, DS 1, DS2 display signal ES
  • ES1 ⁇ ESN coded signal
  • Si SM row electrode
  • FIG. 1 is a functional block diagram of a visual interface system 1 according to a first embodiment of the present invention.
  • the visual interface system 1 includes an operating device 11 and a passive matrix display device 12, which are coupled to each other, for example, by capacitive or inductive coupling to transmit signals, so that they can be contactless. The signal is passed.
  • the operating device 11 can be, for example, a touch pen, a conductor, or a chip card, or a short-range wireless reading device, or a user (especially a user's finger).
  • the operating device 11 When the operating device 11 is an electronic device, it may have a functional circuit such as a processing control circuit, a storage circuit or a transmitting circuit.
  • the "circuit" may be constituted by hardware, software, or firmware, or a combination thereof.
  • the operating device 11 is a user, the signal is transmitted using the user (operating device) as a conductor.
  • the passive matrix display device 12 can be, for example, a passive matrix liquid crystal display device (Passive Matrix LCD), a touch display device (Touch Di splay Apparatus), a non-volatile display device (Non-Volati le Type Display Apparatus) or none.
  • Passive Matrix 0LED Source matrix organic light emitting diode display device
  • FIG. 2 is a side view of the passive matrix display device 12 of FIG.
  • the passive matrix display device 12 includes a display surface 121, a first substrate 122, and a second substrate 123.
  • the display surface 121 is located on a first side P1 of the first substrate 122
  • the second substrate 123 is located on a second side P2 of the first substrate 122 opposite to the first side P1, and is opposite to the first substrate 122.
  • the display surface 121 refers to a surface of the passive matrix display device 12 closest to the user when the user views the image displayed by the passive matrix display device 12.
  • the first substrate 122 and the second substrate 123 are respectively a glass substrate, and the passive matrix display device 12 further includes a protective glass 124 disposed on the first side P1 of the first substrate 122, and the display surface 121 is To protect the glass 124 from a surface of the user.
  • the passive matrix display device 12 may further include a display medium layer 125 sandwiched between the first substrate 122 and the second substrate 123.
  • the display medium layer 125 can be a liquid crystal layer, and the liquid crystal display device can also include, for example, an alignment film, a polarizing plate, a color filter or a backlight or other components. .
  • the display medium layer 125 can be an electrophoretic layer, and the non-volatile display device can also include, for example, a receiving structure or other components.
  • the passive matrix display device 12 is an organic light emitting diode display device
  • the display medium layer 125 can be an organic light emitting layer
  • the passive matrix display device 12 can also include, for example, a color filter or other components.
  • an encoded signal ES can be wirelessly coupled from the passive matrix display device 12 by capacitive or inductive coupling or the like.
  • the operating device 11 receives the encoded signal ES to obtain a transmitted signal TS.
  • the encoded signal ES implicitly includes coordinates on the passive matrix display device 12 regarding the touch position of the display screen by the operating device 11, so that the transmission signal TS can implicitly contain coordinate information, and the passive matrix display device 12 transmits the encoded signal.
  • the encoded signal ES may be composed of any information to be transmitted, such as touch information, command information, identification information, transaction information or file information (music, pictures, text, etc.), so that the signal TS is transmitted. Contains the corresponding message.
  • the coded signal ES can be applied to at least one electrode of the passive matrix display device 12, and the electrode can be disposed on the first substrate 122 or the second substrate 123, and the coded signal ES can be applied to the electrode, and The electrodes are coupled to the operating device 11 by capacitance or inductance.
  • the passive matrix display device 12 of course also additionally applies a display signal for displaying a picture to display an image.
  • the coded signal ES can be applied, for example, at a blanking time applied by the display signal, for example, between two frames, or between two row electrodes or two column electrodes to transmit signals, or by shortening the display.
  • the signal is applied with time to generate a neutral signal, or a signal higher than the display signal frequency is superimposed directly on the display signal, or applied between display updates.
  • FIG. 3A is a perspective view of the passive matrix display device 12 of FIG. 2
  • FIG. 3B is a cross-sectional view of the plurality of column electrodes and the plurality of row electrodes of FIG. Schematic diagram of the settings.
  • FIG. 3B shows only a plurality of column electrodes and a plurality of row electrodes of the passive matrix display device 12 of FIG. 3A, and does not display the first substrate 122, the second substrate 123, and the display medium layer of the passive matrix display device 12. 125.
  • the passive matrix display device 12 is exemplified by an organic light emitting diode display device, and the display medium layer 125 is an organic light emitting layer.
  • the passive matrix display device 12 may further include a plurality of columns.
  • the electrode Di Dw and the plurality of row electrodes Si SM are disposed on the second side P2 of the first substrate 122, and the row electrodes S i SM are disposed on the second substrate 123 facing the first substrate 122
  • the column electrodes Di Dw are alternately arranged with the row electrodes Si SM and are substantially perpendicular or at an angle to each other.
  • the passive matrix display device 12 can also be provided with a driving module (not shown), and the passive matrix display device 12 can display the image by driving the driving module.
  • the row electrode and the column electrode may be selected and driven by the driving module to illuminate the display medium layer 125 at the intersection of the row electrode and the column electrode to display the image frame. Since the driving method of the driving module of the passive matrix display device 12 for the image is a conventional technique, it will not be described here.
  • the focus of this embodiment is to transmit the encoded signal ES from the passive matrix display device 12 to the operating device 11 by using the row electrode Si SM and/or the column electrode Di Dw to generate the transmission signal TS.
  • the encoded signal ES can imply different messages to correspond to different applications, from the reference coordinates of the display screen of the passive matrix display device 12 to the file data of various formats such as personal data, music, pictures, etc., which can be implicitly encoded. Transmitted in the signal ES.
  • the column electrode Di Dw can transmit the encoded signal ES in addition to the signal for transmitting the display screen.
  • a coded signal ES higher than the frequency of the display signal DS is directly superimposed on the display signal DS, or a neutral time during which the display signal DS is transmitted (between a frame and another frame, or between screen updates)
  • the coded signal ES is transmitted during the neutral time.
  • the coded signal ES can be provided by the circuit of the drive module of the passive matrix display device 12 to simplify the circuit design.
  • the passive matrix display device 12 when the passive matrix display device 12 is a bistable display device such as a cholesteric liquid crystal display device, the display device only needs to transmit a display signal when the screen is updated, and the encoded signal can be updated while the display screen is updated. (On the display signal), or between the display screen updates (between the display signals).
  • the passive matrix display device 12 can also update only a part of the display screen, so that the coded signal can be transmitted between the updated partial display screen area and the updated partial display screen area; and the passive matrix display device 12 is of the same type.
  • a quasi-bi stable display device such as an interferometric modulator (IM0D) display device that utilizes a microelectromechanical structure to produce optical interference phenomena.
  • I0D interferometric modulator
  • the coded signal can still be carried on the display signal or the sustain signal, or interspersed with Display between signals or between sustain signals.
  • FIG. 4 is a schematic diagram of signals of two adjacent column electrodes of FIG. 3B.
  • the one-dimensional touch perpendicular to the direction of the column electrode is taken as an example, and the coded signal ES is explained in a time series coding manner.
  • the same method can also be applied perpendicular to the direction of the row electrodes, thus forming a complete two-dimensional planar touch.
  • only one column of electrodes transmits the encoded signal ES, and the encoded signal is marked in a different level from the display signal, and can also be performed at the same level when implemented.
  • the column electrode transmits an encoded signal ESI and a display signal DS1
  • the column electrode transmits another encoded signal ES2 and another display signal DS2.
  • the timing chart of the coded signals transmitted on the respective columns of electrodes can be as shown in FIG. 5 (the display signal DS is omitted), and the column electrodes 0 1 ⁇ can respectively transmit the coded signals ES1 to ESN.
  • the above-mentioned coded signals ES1 to ESN can be transmitted on different column electrodes respectively, or a plurality of column electrodes can transmit the same coded signal (the number signal can have multiple bits), for example, the column electrodes Di Ds transmit the coded signals.
  • ES1 and the column electrodes D 4 to D6 all transmit the encoded signal ES2; the same principle can also be applied to the encoded signal ES transmitted by the row electrodes.
  • the coded signals ES transmitted by the row electrodes and the column electrodes can be independently formed into a system. Since the column electrodes sequentially transmit the coded signal ES, it is necessary to have a time reference point, and the column electrode position can be known by comparison with the reference point.
  • This reference point can be transmitted in the same way as a special code.
  • all column electrodes transmit two 1s before starting the sequential transfer.
  • the coded signal ES to which the operating device 11 is coupled is, for example, 110010000, and the operating device 11 is known to be positioned on the third column electrode, so that the coordinates (X coordinate) of the operating device 11 can be derived.
  • the Y coordinate of the operating device 11 can be known via another set of encoded signals applied to the row electrodes.
  • the duty cycle of the coded signal ES of this embodiment is smaller than the duty cycle of the display signal DS, thereby maintaining the display quality.
  • the above modulation method is an amplitude modulation (Amplitude Modulation) technique, that is, 1 or 0 of the digital signal is represented by the amplitude, but a frequency modulation technique can also be used to represent the digital signal 1 or 0, for example, it can be defined that there are 5 up and down amplitude changes in unit time is 1 and the rest is 0; or use phase shift modulation (Phase Shift Modulation) technology, for example, define a high level plus a low level 0, and a low level plus a high level is 1.
  • the modulation method is not limited.
  • techniques such as time division, frequency division, or division can be used between different electrodes.
  • the coded signal ES can be capacitively coupled from the passive matrix display device 12 To the operating device 11. Since the column electrode Di Dw transmits the coded signal ES as an example, the column electrode serves as one of the capacitively coupled electrodes, and the operating device 11 has another electrode capacitively coupled, for example, when the operating device 11 is a touch pen.
  • the nib contains a conductor as the other electrode that is capacitively coupled.
  • the operating device 11 After the operating device 11 receives the encoded signal ES by coupling, the operating device 11 processes the encoded signal ES to obtain a transmitted signal TS.
  • the processing may include amplifying and/or decoding the encoded signal ES to interpret which column electrode is touched, or to interpret the touch position, or to interpret the touch gesture (hand gesture), or to interpret the touch corresponding to Function instructions, etc.
  • the encoded signal ES is Capacitively coupled to the operating device 11, the size of the capacitor is related to the distance between the operating device 11 and the display surface 121, that is, the Z-axis information can be obtained from the signal size, so that the operating device 11 can obtain not only planar two-dimensional coordinates, but also The z coordinate of the distance from the plane. Accordingly, the coverage of the so-called transmission signal TS can be from simple amplification of the encoded signal ES to final processing into an action command.
  • the operating device 11 can transmit the transmission signal TS to the passive matrix display by wire or wirelessly, or electrically coupled (including capacitive, inductive coupling) or optical coupling.
  • the direct transfer to the passive matrix display device 12 is taken as an example.
  • the message to be transmitted may be first encoded into an encoded signal ES according to a specific principle, and then coupled to the operating device by the passive matrix display device 12 (for example, included in a mobile phone or a tablet computer). 11 (eg a close-range wireless reader fixed to the wall). Similarly, the operating device 11 can process the encoded signal ES (for example, decode and/or modify data) according to the set principle to obtain the transmission signal TS, and then use the transmission signal TS according to the respective purposes, for example, for access control, shopping. And financial transactions, or file transfers.
  • the passive matrix display device 12 for example, included in a mobile phone or a tablet computer.
  • 11 eg a close-range wireless reader fixed to the wall.
  • the operating device 11 can process the encoded signal ES (for example, decode and/or modify data) according to the set principle to obtain the transmission signal TS, and then use the transmission signal TS according to the respective purposes, for example, for access control, shopping. And financial transactions, or file transfers.
  • the above operation is performed by the operating device 11 to obtain information that the transmission signal TS already has, such as touch information, command information, identification information, transaction information, file information or other information.
  • the passive matrix display device 12 can process the transmission signal TS to obtain a message having touch information, instruction information, identification information, transaction information, file information or other information, and the touch information can be
  • the relative position information of the operating device 11 on the display surface 121 is derived from the signals of the first substrate 122 and the second substrate 123 of the passive matrix display device 12.
  • the signal is processed during the process of coupling the encoded signal ES to the operating device 11 to generate the transmission signal TS, and then transmitting the signal TS to the passive matrix display device 12 for information.
  • amplification and decoding, and the processes may be concentrated or dispersed in the operating device 11 or the passive matrix display device 12 such that the transmitted signal TS has touch information, command information, identification information, transaction information, file information or other information.
  • the information obtained by the passive matrix display device 12 may have touch information, command information, identification information, transaction information, file information, or other information.
  • a response signal RS may be transmitted between the operating device 11 and the passive matrix display device 12.
  • the response signal RS may notify the passive matrix display device 12 of the receiving state of the operating device 11 for a message; A message notifies the operating device 11 that it is ready to receive the signal; it can also be a synchronization signal between the operating device 11 and the passive matrix display device 12. This creates an interactive chat mechanism between signal transmission and reception.
  • the response signal RS can also be used as a synchronization function to form a message handshaking.
  • FIG. 6, is a schematic diagram of the appearance of the passive matrix display device 12 according to the first embodiment of the present invention.
  • the visual interface system 1 can also include a mode trigger component 127 that can be triggered by a user or operating device to activate the passive matrix display device 12 to enter an operational mode to transmit the encoded signal ES.
  • a mode trigger component 127 can be triggered by a user or operating device to activate the passive matrix display device 12 to enter an operational mode to transmit the encoded signal ES.
  • the mode trigger component 127 is touched (for example, pressing its button) to activate the passive matrix display device 12 to enter the touch mode.
  • the row electrode or the column electrode transmits the coded signal, and the rest of the time can turn off the touch function of all or part of the passive matrix display device 12, thereby preventing the touch screen from causing malfunction and saving power.
  • the mode of the trigger component 127 can have various modes, such as restoring the previous state after a single trigger, changing the state every time the trigger is triggered, and maintaining the state after the continuous trigger. It should be noted that the mode trigger component 127 can also be disposed on the operating device 11 (for example, a switch on the touch pen). In this case, after the mode trigger component 127 is triggered, the operating device 11 transmits a trigger signal to none. The source matrix displays device 12 to bring it into touch mode. It should be noted that the mode trigger component 127 referred to herein may be a one-shot mode to switch the touch function, or the user must keep in touch to switch the touch function.
  • the user can trigger the component 127 to trigger the data transfer function of the identity authentication by using the number signal, for example, transferring the data to the card reader, or another A device with a receiver.
  • the mode trigger component 127 can be, for example, a mechanical switch or a touch switch or the like.
  • FIG. 7 there is shown a schematic diagram of a passive matrix display device 12 of the first embodiment of the present invention and a user as the operating device 11.
  • the visual interface system 1 can further include a sensing component 128.
  • the sensing component 128 is electrically coupled to the passive matrix display device 12, and the user (operating device) simultaneously contacts the display surface 121 of the passive matrix display device 12 and the sensing component 128 to The transmission signal TS is transmitted back to the passive matrix display device 12. It is intended that the user transmits the transmission signal TS to the passive matrix display device 12 as a transmission conductor.
  • the specific actual action may be, for example, that the user's right hand is operating on the display surface 121 and the left hand is holding the sensing component 128 such that the encoded signal ES can be accessed from the user's right hand and the transmitted signal TS can be transmitted from the left hand.
  • the transmitted information can be obtained by analyzing the transmitted signal TS received by the sensing component 128.
  • the sensing component 128 can also have the function of the mode triggering component 127, for example, when the left hand is detected to hold the sensing component 128, the working mode is started, and the rest of the time is absent. This can greatly reduce power consumption and false touches.
  • FIG. 8 is a functional block diagram of a visual interface system la according to a second embodiment of the present invention.
  • the visual interface system 1a includes an operating device 11 and a passive matrix display device 12.
  • the visual interface system 1a can further include at least one relay device 13, and the transmission signal TS can be transmitted through the relay device 13 to other devices than the visual interface system 1a or the passive matrix display device 12 .
  • the transmission signal TS is transmitted to the relay device 13 by the user's hand, and the relay processing signal IS is transmitted back to the passive matrix display device 12 after processing, but the technical features described below can be pushed. And multiple relay devices.
  • the operating device 11 is a user, the user can transmit the transmission signal TS to the relay device 13 for signal transmission, and can no longer return the signal to the passive matrix display device 12.
  • the relay device 13 can be a mobile communication device, such as a mobile phone, so that the encoded signal ES sent by the passive matrix display device 12 can be transmitted to the relay device 13 for use in the archive data by using the user as a medium. Transmission.
  • the relay device 13 processes the transmission signal TS to obtain a relay processing signal IS, and transmits the relay processing signal IS to the passive matrix display device 12.
  • the transmission signal TS is generated by coupling the coded signal ES to the operating device 11, and then the relay device 13 processes the transmission signal TS to obtain the relay processing signal IS, and transmits the relay processing signal IS to the passive matrix display device 12 to obtain information.
  • the signals are subjected to some processing, such as amplification, decoding, modification, interpretation, etc., and these processes may be concentrated or dispersed in the operating device 11, the passive matrix display device 12 or the relay device 13.
  • the transmission signal TS has touch information, instruction information, identification information, transaction information, file information or other information; or, the relay processing signal IS may have touch information, instruction information, identification information, transaction information, file information or other information. .
  • reaction signal RS of the first embodiment can also be applied to the operating device 11 and/or the relay device 13 and/or the passive matrix display device 12 of the present embodiment, and an interactive chat mechanism is established between signal transmission and reception.
  • response signal RS can also serve as a three-way synchronization function to form a three-way handshake process.
  • the encoded signal when the operating device is operated on the display surface of the passive matrix display device, the encoded signal can be coupled from the passive matrix display device to the operating device, and the operating device can receive the code. Signal to get a transmission signal.
  • the transmission signal can be directly or indirectly transmitted to the passive matrix display device, and can be processed by the operating device, and/or processed by at least one relay device, and/or a passive matrix display device in the process.
  • the processing enables the passive matrix display device to obtain information contained in the encoded signal and the transmitted signal, such as touch information, command information, identification information, transaction information, file information, or other information.
  • the visual interface system of the present invention can be directly applied to a system including a passive matrix structure, such as a passive matrix liquid crystal display device, a non-volatile display device, a touch display device, or a passive matrix organic light emitting diode display device.
  • a passive matrix structure such as a passive matrix liquid crystal display device, a non-volatile display device, a touch display device, or a passive matrix organic light emitting diode display device.
  • the present invention couples the encoded signal to an external operating device instead of directly reading the encoded signal by the passive matrix display device, so that no change in layout is required on the passive matrix display device, such as in a touch application. There is no need to add a capacitive sensing component to the display panel to detect changes in external capacitance values, thereby reducing cost and shortening the process.

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Abstract

视觉接口系统包括一操作装置以及一无源矩阵显示装置。无源矩阵显示装置包括一第一基板、一显示面及一第二基板。显示面位于第一基板的一第一侧。第二基板位于第一基板与第一侧相对的一第二侧，并与第一基板相对而设。当操作装置在无源矩阵显示装置的显示面上操作时，一编码讯号从无源矩阵显示装置耦合至操作装置，操作装置接收编码讯号而得到一传送讯号。本发明的视觉接口系统不需使用另一触屏面板而能达到笔写及触摸的功能，同时还可应用于短距离无线通信使用。

Description

说 明 书 视觉接口系统
技术领域
本发明关于一种人机接口系统， 特别是关于一种视觉接口系统。 背景技术
近年来， 触屏面板已经逐渐广泛应用于一般的消费性电子商品上， 例如智 能手机、 数字相机、 数字音乐播放器 （MP3 )、 个人数字助理器 （PDA)、 卫星导 航器（GPS )、掌上型计算机（hand-held PC),甚至崭新的超级行动计算机（Ultra Mobile PC, UMPC) 等， 上述的触屏面板皆结合于一显示屏幕而成为一触摸显示 装置。
另一方面， 为增加消费性电子产品的应用层面， 也开始在这些产品中加入 近场通讯 (Near Field Communication, NFC, 或近距离无线通讯） 的功能。 它 能提供， 举凡取代大量使用 IC卡的场合如门禁管制、车票、 门票或信用卡付费， 两个电子装置之间的数据交换， 如音乐、 图片、 或名片等等。 在增加诸多功能 下， 如何能持续维持一个简洁的架构而以非迭床架屋的方式得到一个产品， 也 吸引众多人的投入。
因此， 如何提供一种视觉接口系统， 能够不需使用另一触屏面板而能达到 触摸的功能， 进而使产品轻薄化及降低成本， 并且能结合短距离无线通讯的应 用而扩大应用层面， 实为当前重要课题。 发明内容
本发明的目的为提供一种能够不需使用另一触屏面板而能达到笔写及触摸 的功能， 同时还可应用于短距离无线通信的视觉接口系统。
本发明可采用以下技术方案来实现的。
本发明的一种视觉接口系统包括一操作装置以及一无源矩阵显示装置。 无 源矩阵显示装置包括一第一基板、 一显示面及一第二基板。 显示面位于第一基 板的一第一侧。 第二基板位于第一基板与第一侧相对的一第二侧， 并与第一基 板相对而设。 当操作装置在无源矩阵显示装置的显示面上操作时， 一编码讯号 从无源矩阵显示装置耦合至操作装置， 操作装置接收编码讯号而得到一传送讯 号。
在一实施例中， 传送讯号传送至无源矩阵显示装置。 在一实施例中， 无源矩阵显示装置具有至少一个电极设置于第一基板或第 二基板， 编码讯号施加于电极， 并从电极通过电容或电感耦合至操作装置。 而 电极为一独立电极， 或为无源矩阵显示装置的多个电极的至少其中之一。
在一实施例中， 无源矩阵显示装置处理传送讯号而得到一信息， 信息包括 触摸信息、 指令信息、 识别信息、 交易信息、 或档案信息。 其中， 触摸信息为 操作装置在显示面上的相对位置信息， 而传送讯号为来自第一基板及第二基板 的讯号。
在一实施例中， 视觉接口系统还包括至少一个中继装置。 中继装置处理传 送讯号而得到一中继处理讯号， 中继处理讯号可传送至视觉接口系统以外的其 它装置或无源矩阵显示装置。 其中， 传送讯号可包括触摸信息、 指令信息、 识 别信息、 交易信息、 档案信息或其它信息或者， 中继处理讯号可包括触摸信息、 指令信息、 识别信息、 交易信息、 档案信息或其它信息。 或者， 由视觉接口系 统以外的其它装置或无源矩阵显示装置处理中继处理讯号而得到一信息， 信息 可包括触摸信息、 指令信息、 识别信息、 交易信息、 档案信息或其它信息。
在一实施例中， 视觉接口系统还包括一模式触发组件， 一用户或操作装置 触发模式触发组件， 以启动无源矩阵显示装置进入一工作模式而发送编码讯号。
在一实施例中， 当操作装置为一用户时， 视觉接口系统还包括一感应组件， 用户同时接触显示面及感应组件， 以传递传送讯号至感应组件。 其中， 感应组 件具有模式触发功能， 用户可接触感应组件以启动无源矩阵显示装置进入一工 作模式而发送编码讯号。
在一实施例中， 无源矩阵显示装置还可包括一显示介质层， 显示介质层夹 置于第一基板与第二基板之间。 另外， 无源矩阵显示装置还可包括多个列电极 设置于第一基板的第二侧， 及多个行电极设置于第二基板面对第一基板的一侧， 且所述列电极与所述行电极交错设置。
承上所述， 因本发明的视觉接口系统中， 当操作装置在无源矩阵显示装置 的显示面上操作时， 编码讯号可从无源矩阵显示装置耦合至操作装置， 而操作 装置可接收编码讯号而得到一传送讯号。 以触摸操作为例， 传送讯号可直接或 间接传送至无源矩阵显示装置， 并且在过程中可经过操作装置的处理、 及 /或至 少一个中继装置的处理、 及 /或无源矩阵显示装置的处理， 使得无源矩阵显示装 置得到编码讯号与传送讯号所内含的信息， 例如触摸信息、 指令信息、 识别信 息、 交易信息、 档案信息或其它信息。 由上可知， 本发明的视觉接口系统可直接应用于内含有无源矩阵结构的系 统， 例如无源矩阵液晶显示装置、 非挥发型显示装置、 触摸显示装置、 或无源 矩阵有机发光二极管显示装置等， 整合显示、 触摸与数据传输于一体， 进而使 产品轻薄化， 并降低成本以提升产品竞争力。 另外， 本发明将编码讯号耦合至 外部的操作装置， 而非由无源矩阵显示装置直接读取编码讯号， 因而在无源矩 阵显示装置上不需作布局上的改变， 例如在触摸应用上， 不需要在显示面板内 增加电容感应组件以侦测外界电容值的改变， 因而降低成本并缩短制程。 附图说明
图 1为本发明第一实施例的一种视觉接口系统的功能方块示意图； 图 2为本发明第一实施例的无源矩阵显示装置的侧视示意图；
图 3A为图 2的无源矩阵显示装置的一立体示意图；
图 3B为图 3A的多个列电极及多个行电极交错设置的示意图；
图 4为图 3B的相邻两列电极的讯号示意图；
图 5为本发明第一实施例的各列电极所传送的编码讯号的时序图； 图 6为本发明第一实施例的无源矩阵显示装置的外观示意图；
图 7为本发明第一实施例的无源矩阵显示装置以及用户作为操作装置的示 意图； 以及
图 8为本发明第二实施例的一种视觉接口系统的功能方块示意图。
主要元件符号说明：
1、 l a : 视觉接口系统
1 1： 操作装置
12： 无源矩阵显示装置
121 显示面
122 第一基板
123 第二基板
124 保护玻璃
125 显示介质层
127 模式触发组件
128 感应组件
13： 中继装置
列电极
DS、 DS 1、 DS2 : 显示讯号 ES、 ES1〜ESN: 编码讯号
IS: 中继处理讯号
PI : 第一侧
P2 : 第二侧
RS: 反应讯号
Si SM : 行电极
TS: 传送讯号 具体实施方式
以下将参照相关附图， 说明依本发明优选实施例的一种视觉接口系统， 其 中相同的元件将以相同的元件符号加以说明。
请参照图 1所示， 其为本发明第一实施例的一种视觉接口系统 1 的功能方 块示意图。
视觉接口系统 1 包括一操作装置 11 以及一无源矩阵显示装置 （Passive Matrix Display Apparatus ) 12， 互相耦接， 例如可通过电容或电感耦合的方 式而耦接， 以传送讯号， 故可为不接触的讯号传递。
在本实施例中， 操作装置 11可例如为一触摸笔、 一导体、 或一芯片卡、 或 一近距离无线读取装置、 或一用户 （特别是用户的手指）。 当操作装置 11 为电 子装置时， 其内可具有处理控制电路、 存储电路或传送电路等功能电路。 于此， 「电路」 可通过硬件、 软件、 或韧体、 或其组合所构成。 当操作装置 11为一用 户时， 利用用户 （操作装置） 作为导体而传送讯号。 另外， 无源矩阵显示装置 12 例如可为一无源矩阵液晶显示装置 （Passive Matrix LCD ) , 触摸显示装置 (Touch Di splay Apparatus )^ 非挥发型显示装置 (Non-Volati le Type Display Apparatus ) 或无源矩阵有机发光二极管显示装置 （Passive Matrix 0LED)。
请参照图 2所示， 其为图 1的无源矩阵显示装置 12的侧视示意图。
无源矩阵显示装置 12包括一显示面 121、一第一基板 122及一第二基板 123。 显示面 121位于第一基板 122的一第一侧 P1，而第二基板 123位于第一基板 122 与第一侧 P1相对的一第二侧 P2 , 并与第一基板 122相对而设。 在本实施例中， 显示面 121是指用户观看无源矩阵显示装置 12显示影像时， 无源矩阵显示装置 12最靠近用户的一表面。 于此， 第一基板 122与第二基板 123可分别为一玻璃 基板， 而无源矩阵显示装置 12还可包括一保护玻璃 124设置于第一基板 122的 第一侧 P1 , 而显示面 121即为保护玻璃 124靠近用户的一表面。 另外， 无源矩阵显示装置 12还可包括一显示介质层 125， 显示介质层 125 夹置于第一基板 122与第二基板 123之间。 其中， 当无源矩阵显示装置 12为一 液晶显示装置时， 显示介质层 125可为一液晶层， 且液晶显示装置还可例如包 括配向膜、 偏光板、 彩色滤光片或背光源或其它组件。 另外， 当无源矩阵显 示装置 12为一非挥发型显示装置时， 显示介质层 125可为一电泳层， 且非挥发 型显示装置还可例如包括容置结构或其它组件。 此外， 当无源矩阵显示装置 12 为一有机发光二极管显示装置时， 显示介质层 125可一有机发光层， 且无源矩 阵显示装置 12还可例如包括彩色滤光片或其它组件。
以下以触摸用途为例， 说明本实施例的实施方式。 请再参照图 1及图 2所 示， 当操作装置 11在无源矩阵显示装置 12的显示面 121上操作时， 一编码讯 号 ES可从无源矩阵显示装置 12通过电容或电感耦合等无线耦合至操作装置 11， 而操作装置 11接收编码讯号 ES而可得到一传送讯号 TS。于此， 编码讯号 ES隐 含有无源矩阵显示装置 12上关于显示屏幕被操作装置 11触碰位置的坐标， 使 得传送讯号 TS可隐含有坐标信息， 而无源矩阵显示装置 12传送编码讯号 ES至 操作装置 11时， 大致上是无线的方式， 以形成一种近场 （Near Field ) 的讯号 传送。 当然， 若为其它应用， 则编码讯号 ES可由任一欲传送的信息所构成， 例 如触摸信息、 指令信息、 识别信息、 交易信息或档案信息 （音乐、 图片、 文字 等等）， 使得传送讯号 TS含有对应的讯息。 其中， 编码讯号 ES可施加在无源矩 阵显示装置 12的至少一个电极上， 此电极可设置于第一基板 122上或第二基板 123上， 而编码讯号 ES可施加于所述电极， 并从此所述电极通过电容或电感耦 合至操作装置 11。无源矩阵显示装置 12当然也另外施加显示画面用的显示讯号 以显示影像。 其中， 编码讯号 ES可例如在显示讯号施加的空档时间 （blanking time ) 来施加， 例如两个图框 （frame ) 间、 或两个行电极或两个列电极传送讯 号间、 或借缩短显示讯号施加时间以产生空档、 或在显示讯号上直接迭加一高 于显示讯号频率的讯号、 或在显示画面更新间施加。
请同时参照图 2、 图 3A及图 3B所示， 其中， 图 3A为图 2的无源矩阵显示 装置 12的一立体示意图， 而图 3B为图 3A的多个列电极及多个行电极交错设置 的示意图。 于此， 图 3B只显示图 3A的无源矩阵显示装置 12的多个列电极及多 个行电极， 并未显示无源矩阵显示装置 12的第一基板 122、 第二基板 123及显 示介质层 125。
在本实施例中， 无源矩阵显示装置 12以有机发光二极管显示装置为例， 而 显示介质层 125则为有机发光层。 于此， 无源矩阵显示装置 12还可包括多个列 电极 Di Dw及多个行电极 Si SM, 所述列电极 Di D 置于第一基板 122的第二 侧 P2 , 所述行电极 S i SM设置于第二基板 123面对第一基板 122的一侧， 且所 述列电极 Di Dw与所述行电极 Si SM交错设置， 且实质上相互垂直或夹一角度。 另外， 无源矩阵显示装置 12还可设置一驱动模块 （图未显示）， 并通过驱动模 块的驱动可使无源矩阵显示装置 12显示影像。 其中， 可通过驱动模块选取并驱 动行电极及列电极， 以点亮行电极及列电极交错处的显示介质层 125， 以显示影 像画面。由于无源矩阵显示装置 12的驱动模块对于影像的驱动方法为习知技术， 于此就不再说明。 本实施例的重点在于， 利用行电极 Si SM及 /或列电极 Di Dw 自无源矩阵显示装置 12传送编码讯号 ES至操作装置 11， 以产生传送讯号 TS。 注意， 编码讯号 ES可以隐含不同讯息以对应不同的应用， 从无源矩阵显示装置 12 的显示屏幕的参考坐标到个人数据、 音乐、 图片等各种格式的档案数据， 均 可隐含于编码讯号 ES中传送。
在本实施例中，列电极 Di Dw除了可传送显示画面的讯号外，还可传送编码 讯号 ES。 例如， 在显示讯号 DS上直接迭加一高于显示讯号 DS频率的编码讯号 ES , 或在其传送显示讯号 DS的空档时间 （一图框与另一图框间， 或是画面更新 间的空档时间）时传送编码讯号 ES。 于此， 编码讯号 ES可由无源矩阵显示装置 12的驱动模块的电路来提供， 以简化电路设计。
值得注意的是， 当无源矩阵显示装置 12为一双稳态 （bistable ) 显示装置 如胆固醇型液晶显示装置时， 因显示装置仅画面更新需传送显示讯号， 而编码 讯号可在显示画面更新的同时（载于显示讯号上）、 或显示画面更新间（于显示讯 号间)传送。 另外， 无源矩阵显示装置 12还可只更新部分显示画面， 故在更新 部分显示画面区域的同时， 或更新部分显示画面区域间还可传送编码讯号； 另 当无源矩阵显示装置 12为一类双稳态 （quasi-bi stable ) 显示装置， 如利用微 机电结构产生光干涉现象的干涉调变 （interferometric modulator, IM0D) 显 示装置。 此类显示装置除须显示讯号以更新画面外， 在画面没有更新时仍需借 一维持讯号以维持画面， 在此情况下， 编码讯号仍可载于显示讯号或维持讯号 上、 或是穿插于显示讯号间或是维持讯号间传送。
请参照图 4所示， 其为图 3B的相邻两个列电极的讯号示意图。 以下， 仅就 以垂直于列电极方向的一维触摸为例， 同时以时序编码方式说明编码讯号 ES。 同法亦可施行在垂直于行电极方向上， 如此可构成一完整的二维平面触摸。
在本实施例中， 如图 4所示， 仅有一列电极传送编码讯号 ES , 而编码讯号 是以与显示讯号不同位准方式标示， 实施时亦可以相同的位准进行。 换言之， 于一时间时， 列电极传送一编码讯号 ESI及一显示讯号 DS1， 再于下一时间时， 列电极再传送另一编码讯号 ES2及另一显示讯号 DS2。如此， 各列电极上所传送 的编码讯号的时序图可如图 5所示（省略显示讯号 DS) , 列电极 01〜 可分别传 送编码讯号 ES1〜ESN。需补充说明， 上述编码讯号 ES1〜ESN可以分别在不同的 列电极上传送， 亦可以多数条列电极传送同一个编码讯号 （编号讯号可具有多 个位）， 例如列电极 Di Ds都传送编码讯号 ES1 , 而列电极 D4〜D6都传送编码讯 号 ES2; 同样的原则亦可适用于行电极所传送的编码讯号 ES。 此外， 行电极与 列电极所传的编码讯号 ES可各自独立成一系统。 由于列电极依序传送编码讯号 ES, 因此尚须一时间基准点， 通过与基准点比较即可得知列电极位置。 此基准 点可以是一特殊编码以相同方式传送， 例如， 所有列电极都传送两个 1 后再开 始依序传送。依上述方式，操作装置 11耦合到的编码讯号 ES例如为 110010000， 即可得知操作装置 11位在第三条列电极上， 因此可推算出操作装置 11 的坐标 (X坐标）。 同法， 操作装置 11的 Y坐标可经由另一组施加于行电极的编码讯号 得知。 另外， 本实施例的编码讯号 ES的责任周期 （duty cycle) 小于显示讯号 DS的责任周期， 借此以维持显示质量。
上述的调变方式为振幅调变 （Amplitude Modulation) 技术， 即是以振幅 的高低来表示数字讯号的 1 或 0， 不过， 也可使用频率调变 （Frequency Modulation)技术来表示数字讯号的 1或 0， 例如可定义单位时间内有 5个上下 振幅的变化是为 1， 其余则为 0; 或使用相移调变 （Phase Shift Modulation) 技术， 例如定义一个高准位加上一个低准位为 0， 而一个低准位加上一个高准位 则为 1。 于此， 其调变方式并不加以限制。 另外， 为避免邻近电极之间的干扰， 不同电极间可以采用分时、 分频、 或分码等技术。
当用户拿着操作装置 11于无源矩阵显示装置 12的显示面 121上操作时 (例 如碰触到显示面 121或靠近显示面 121 )， 编码讯号 ES可从无源矩阵显示装置 12通过电容耦合至操作装置 11。 由于本实施例以列电极 Di Dw传送编码讯号 ES 为例， 因此列电极作为电容耦合的其中一个电极， 而操作装置 11上具有电容耦 合的另一个电极， 例如操作装置 11为一触摸笔时， 笔尖含有一导体做为电容耦 合的另一个电极。
在操作装置 11通过耦合接收到编码讯号 ES后， 操作装置 11依据编码讯号 ES进行处理而得到一传送讯号 TS。 这处理可包括对编码讯号 ES进行放大及 /或 译码， 以解读出哪一条列电极被触摸、 或是解读出触摸位置、 或是解读出触摸 手势 （笔势)、 或是解读出触摸所对应的功能指令等。 注意， 编码讯号 ES 是以 电容耦合至操作装置 11， 此电容大小与操作装置 11与显示面 121的距离有关， 亦即由讯号大小可以得到 Z轴信息， 故操作装置 11可以得到的不仅是平面的二 维坐标， 亦包括与平面距离的 z坐标。 据此， 所谓传送讯号 TS的涵盖范围可以 是从对编码讯号 ES的单纯放大到最后处理成动作指令。
接着， 在操作装置 11产生传送讯号 TS后， 操作装置 11可通过有线方式或 无线方式、 或电性耦接 （包括电容、 电感耦合） 或光学耦接而将传送讯号 TS传 送至无源矩阵显示装置 12 或其它中继装置或此视觉接口系统 1 以外的其它装 置。 于此， 以直接传送至无源矩阵显示装置 12为例。
当本发明应用于其它非触摸用途时， 可先将欲传递的讯息依照特定原则编 码成编码讯号 ES,再由无源矩阵显示装置 12 (例如包括在手机或平板计算机中） 通过耦合至操作装置 11 (例如固定在墙上的近距离无线读取装置）。 同样的， 操 作装置 11可依据所设定的原则对编码讯号 ES进行处理（例如译码及 /或修改数 据） 而得到传送讯号 TS, 再依各自用途使用传送讯号 TS, 例如应用于门禁、 购 物及金融交易、 或档案传送等。
上述以操作装置 11处理而得到传送讯号 TS已具有的信息， 例如触摸信息、 指令信息、 识别信息、 交易信息、 档案信息或其它信息等等。 另外， 在其它实 施例中， 无源矩阵显示装置 12可处理传送讯号 TS而得到一信息， 所述信息具 有触摸信息、 指令信息、 识别信息、 交易信息、 档案信息或其它信息， 而触摸 信息可为操作装置 11在显示面 121上的相对位置信息， 且其相对位置信息源自 无源矩阵显示装置 12的第一基板 122及第二基板 123的讯号。
承上所述， 如图 1所示， 从编码讯号 ES耦合至操作装置 11而产生传送讯 号 TS , 然后传送讯号 TS再传送至无源矩阵显示装置 12而得到信息的过程中， 讯号经过了处理， 例如放大与解碼， 而这些处理过程可集中或分散于操作装置 11或无源矩阵显示装置 12， 使得传送讯号 TS具有触摸信息、 指令信息、 识别 信息、 交易信息、 档案信息或其它信息， 而无源矩阵显示装置 12得到的信息可 具有触摸信息、 指令信息、 识别信息、 交易信息、 档案信息或其它信息。
另外，操作装置 11与无源矩阵显示装置 12之间还可传送一反应 (Response ) 讯号 RS,反应讯号 RS可为一讯息通知无源矩阵显示装置 12关于操作装置 11的 接收状态； 亦可为一讯息通知操作装置 11准备接收讯号； 亦可为一操作装置 11 与无源矩阵显示装置 12之间同步用讯号。 如此可在讯号发射与接收间建立一互 动交谈机制。 另外， 反应讯号 RS 亦可兼做两者同步功能， 以构成一讯息交握 ( information handshaking) 过禾呈。 另外， 请参照图 6所示， 其为本发明第一实施例的无源矩阵显示装置 12的 外观示意图。
视觉接口系统 1还可包括一模式触发组件 127，一用户或操作装置可触发此 模式触发组件 127， 以启动无源矩阵显示装置 12进入一工作模式而发送编码讯 号 ES。 以触摸为例， 当用户需要利用触摸功能时， 才触碰模式触发组件 127 (例 如按压其按钮）， 以启动无源矩阵显示装置 12进入触摸模式。 此时行电极或列 电极才传送编码讯号， 其余时间系统可以关闭全部或部分无源矩阵显示装置 12 的触摸功能， 如此可以防止触动屏幕造成误动作， 同时亦可节省电力。 注意此 模式触发组件 127 的工作模式可以有多种态样， 如单次触发后经一段时间即恢 复先前的状态、 每次触发即改变状态、 持续触发下才维持状态等方式。 另外需 注意的，模式触发组件 127亦可设置于操作装置 11上 (例如触摸笔上的一开关）， 在此状况下， 当模式触发组件 127被触发后， 操作装置 11传送一触发讯号至无 源矩阵显示装置 12以使其进入触摸模式。 须注意在此所称的模式触发组件 127 其功能可以是单次触发的方式以切换触摸功能， 亦可以是用户必须保持接触以 切换触摸功能。 另外， 以门禁、 票卡、 信用卡、 或档案传输为例， 用户可通过 触发此模式触发组件 127， 以编号讯号来进行身份认证的数据传送功能， 例如将 数据传送到卡片阅读机、 或另一具有接收器的装置。 此外， 模式触发组件 127 可例如为一机械开关或为一触摸开关等。
请参照图 7所示， 其为本发明第一实施例的无源矩阵显示装置 12以及以用 户作为操作装置 11的示意图。
视觉接口系统 1还可包括一感应组件 128，感应组件 128与无源矩阵显示装 置 12 电性耦合， 而用户 （操作装置） 同时接触无源矩阵显示装置 12的显示面 121及感应组件 128， 以传送传送讯号 TS回无源矩阵显示装置 12。 意即将用户 作为传输导体而将传送讯号 TS传送至无源矩阵显示装置 12。具体的实际动作可 例如用户的右手在显示面 121上操作， 而左手按住感应组件 128， 如此， 编码讯 号 ES可从用户的右手进入， 而传送讯号 TS可从左手传出。 通过解析感应组件 128所接收的传送讯号 TS, 可以得到传送的信息。 感应组件 128亦可同时拥有 模式触发组件 127的功能， 例如当侦测到左手按住感应组件 128后， 方启动工 作模式， 其余时间则无。 如此可大幅降低功耗及误触等情况。
另外， 请参照图 8所示， 其为本发明第二实施例的一种视觉接口系统 la的 功能方块示意图。
视觉接口系统 la包括一操作装置 11以及一无源矩阵显示装置 12。 与第一实施例主要不同在于， 视觉接口系统 la还可包括至少一个中继装置 13， 而传送讯号 TS可通过中继装置 13传送至视觉接口系统 la以外的其它装置 或无源矩阵显示装置 12。 于此， 以用户的手来传送传送讯号 TS 至一中继装置 13， 经处理后再将中继处理讯号 IS回传至无源矩阵显示装置 12为例， 但以下 说明的技术特征皆可推及多个中继装置。 当然， 操作装置 11为用户时， 用户可 将传送讯号 TS传导至中继装置 13， 以进行讯号的传输， 而可不再回传讯号至无 源矩阵显示装置 12。此时中继装置 13可为一行动通讯装置， 例如为手机， 故可 通过用户作为媒介， 以将无源矩阵显示装置 12所发出的编码讯号 ES传送至中 继装置 13， 以用于档案数据的传输。
中继装置 13处理传送讯号 TS而得到一中继处理讯号 IS, 并将中继处理讯 号 IS传送至无源矩阵显示装置 12。从编码讯号 ES耦合至操作装置 11而产生传 送讯号 TS, 然后中继装置 13处理传送讯号 TS而得到中继处理讯号 IS, 并将中 继处理讯号 IS传送至无源矩阵显示装置 12而得到信息的过程中， 讯号经过了 一些处理， 例如放大、 解碼、 修改、 解读等， 而这些处理过程可集中或分散于 操作装置 11、 无源矩阵显示装置 12或中继装置 13。 结果使得传送讯号 TS具有 触摸信息、 指令信息、 识别信息、 交易信息、 档案信息或其它信息； 或， 中继 处理讯号 IS可具有触摸信息、 指令信息、 识别信息、 交易信息、 档案信息或其 它信息。
另外， 第一实施例的反应讯号 RS亦可应用于本实施例的操作装置 11及 /或 中继装置 13及 /或无源矩阵显示装置 12， 而在讯号发射与接收间建立一互动交 谈机制， 并且反应讯号 RS亦可兼做三者同步功能， 以构成三向交握（three-way handshake) 过程。
综上所述， 因本发明的视觉接口系统中， 当操作装置在无源矩阵显示装置 的显示面上操作时， 编码讯号可从无源矩阵显示装置耦合至操作装置， 而操作 装置可接收编码讯号而得到一传送讯号。 以触摸操作为例， 传送讯号可直接或 间接传送至无源矩阵显示装置， 并且在过程中可经过操作装置的处理、 及 /或至 少一个中继装置的处理、 及 /或无源矩阵显示装置的处理， 使得无源矩阵显示装 置得到编码讯号与传送讯号所内含的信息， 例如触摸信息、 指令信息、 识别信 息、 交易信息、 档案信息或其它信息。
由上可知， 本发明的视觉接口系统可直接应用于内含有无源矩阵结构的系 统， 例如无源矩阵液晶显示装置、 非挥发型显示装置、 触摸显示装置、 或无源 矩阵有机发光二极管显示装置等， 整合显示、 触摸与数据传输于一体， 进而使 产品轻薄化， 并降低成本以提升产品竞争力。 另外， 本发明将编码讯号耦合至 外部的操作装置， 而非由无源矩阵显示装置直接读取编码讯号， 因而在无源矩 阵显示装置上不需作布局上的改变， 例如在触摸应用上， 不需要在显示面板内 增加电容感应组件以侦测外界电容值的改变， 因而降低成本并缩短制程。
以上所述仅是举例性， 而非限制性。 任何未脱离本发明的精神与范畴， 而 对其进行的等效修改或变更， 均应包括在权利要求所限定的范围内。

Claims

权 利 要 求 书
1、 一种视觉接口系统， 其特征在于， 包括：
一操作装置； 以及
一无源矩阵显示装置， 包括：
一第一基板；
一显示面， 位于所述第一基板的一第一侧； 及
一第二基板， 位于所述第一基板与所述第一侧相对的一第二侧， 并与所述 第一基板相对而设，
其中， 当所述操作装置在所述无源矩阵显示装置的所述显示面上操作时， 一编码讯号从所述无源矩阵显示装置耦合至所述操作装置， 所述操作装置接收 所述编码讯号而得到一传送讯号。
2、 根据权利要求 1所述的视觉接口系统， 其特征在于， 所述传送讯号传送 至所述无源矩阵显示装置。
3、 根据权利要求 1所述的视觉接口系统， 其特征在于， 所述无源矩阵显示 装置具有至少一个电极设置于所述第一基板或所述第二基板， 所述编码讯号施 加于所述电极， 并从所述电极通过电容或电感耦合至所述操作装置。
4、 根据权利要求 3所述的视觉接口系统， 其特征在于， 所述电极为一独立 电极， 或为所述无源矩阵显示装置的多个电极的至少其中之一。
5、 根据权利要求 3所述的视觉接口系统， 其特征在于， 所述无源矩阵显示 装置处理所述传送讯号而得到一信息， 所述信息包括触摸信息、 指令信息、 识 别信息、 交易信息、 或档案信息。
6、 根据权利要求 5所述的视觉接口系统， 其特征在于， 所述触摸信息为所 述操作装置在所述显示面上的相对位置信息， 而所述传送讯号为来自所述第一 基板及所述第二基板的讯号。
7、 根据权利要求 1所述的视觉接口系统， 其特征在于， 还包括： 至少一个中继装置， 所述中继装置处理所述传送讯号而得到一中继处理讯 号。
8、 根据权利要求 7所述的视觉接口系统， 其特征在于， 所述中继处理讯号 传送至所述无源矩阵显示装置。
9、 根据权利要求 7所述的视觉接口系统， 其特征在于， 所述传送讯号包括 触摸信息、 指令信息、 识别信息、 交易信息、 或档案信息。
10、 根据权利要求 7所述的视觉接口系统， 其特征在于， 所述中继处理讯 号包括触摸信息、 指令信息、 识别信息、 交易信息、 或档案信息。
11、 根据权利要求 8所述的视觉接口系统， 其特征在于， 所述无源矩阵显 示装置处理所述中继处理讯号而得到一信息， 所述信息包括触摸信息、 指令信 息、 识别信息、 交易信息、 或档案信息。
12、 根据权利要求 1或 7所述的视觉接口系统， 其特征在于， 还包括： 一模式触发组件， 一用户或所述操作装置触发所述模式触发组件， 以启动 所述无源矩阵显示装置进入一工作模式而发送所述编码讯号。
13、 根据权利要求 1或 7所述的视觉接口系统， 其特征在于， 当所述操作 装置为一用户时， 所述视觉接口系统还包括一感应组件， 所述用户同时接触所 述显示面及所述感应组件， 以传送所述传送讯号至所述感应组件。
14、 根据权利要求 13所述的视觉接口系统， 其特征在于， 所述感应组件具 有模式触发功能， 所述用户接触所述感应组件以启动所述无源矩阵显示装置进 入一工作模式而发送所述编码讯号。
15、 根据权利要求 1所述的视觉接口系统， 其特征在于， 所述无源矩阵显 示装置还包括一显示介质层， 所述显示介质层夹置于所述第一基板与所述第二 基板之间。
16、 根据权利要求 1所述的视觉接口系统， 其特征在于， 所述无源矩阵显 示装置还包括：
多个列电极， 设置于所述第一基板的所述第二侧； 及
多个行电极， 设置于所述第二基板面对所述第一基板的一侧， 且所述列电 极与所述行电极交错设置。
17、 根据权利要求 1所述的视觉接口系统， 其特征在于， 所述编码讯号在 所述无源矩阵显示装置的显示画面更新的同时或显示画面更新间传送。
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