WO2015068616A1 - Display apparatus - Google Patents

Display apparatus Download PDF

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Publication number
WO2015068616A1
WO2015068616A1 PCT/JP2014/078692 JP2014078692W WO2015068616A1 WO 2015068616 A1 WO2015068616 A1 WO 2015068616A1 JP 2014078692 W JP2014078692 W JP 2014078692W WO 2015068616 A1 WO2015068616 A1 WO 2015068616A1
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WO
WIPO (PCT)
Prior art keywords
page
display
operation surface
unit
press
Prior art date
Application number
PCT/JP2014/078692
Other languages
French (fr)
Japanese (ja)
Inventor
加納英和
北田宏明
井上貴文
Original Assignee
株式会社村田製作所
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 株式会社村田製作所 filed Critical 株式会社村田製作所
Priority to JP2015546613A priority Critical patent/JP5975184B2/en
Publication of WO2015068616A1 publication Critical patent/WO2015068616A1/en

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    • 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
    • G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
    • G06F3/0487—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
    • G06F3/0488—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures
    • 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
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04106—Multi-sensing digitiser, i.e. digitiser using at least two different sensing technologies simultaneously or alternatively, e.g. for detecting pen and finger, for saving power or for improving position detection
    • 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
    • G06F3/0414—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using force sensing means to determine a position

Definitions

  • the present invention relates to a display device that displays an image on a screen and detects an operation input by a user touching the screen.
  • Patent Document 1 discloses a thin display device that includes a display unit that displays an image on a screen and a plurality of operation switches provided around the display unit.
  • the thin display device displays a page on the screen of the display unit.
  • the plurality of operation switches include a first switch that displays the next page of the currently displayed page, and a second switch that displays the previous page of the currently displayed page. By repeating the operation on the first switch, the user can switch the page displayed on the screen of the display unit to the next page.
  • the thin display device of Patent Document 1 displays the first page and then displays the second page different from the first page by the user repeating the operation on the first switch.
  • the user may want to display the first page on the screen again.
  • the thin display device of Patent Document 1 has a problem that the operation is troublesome as the number of operations to the second switch increases, and the user's usability is poor.
  • an object of the present invention is to provide a display device with improved user convenience.
  • the display device of the present invention includes a display unit, a press sensor, and a page management unit.
  • the display unit displays an image on the operation surface.
  • the pressure sensor detects a pressure on the operation surface.
  • the page management unit displays page information indicating at least one of the content of the first page and the existing position.
  • the pressure sensor detects a pressing on the operation surface when the display unit displays a second page different from the first page on the operation surface
  • the page management unit detects the first page based on the page information. Is displayed on the display unit.
  • the page management unit treats the page as the first page and stores the page information of the first page.
  • the page information is, for example, the HTML of the first page, the URL of the first page, or the page number of the first page.
  • the user switches the page displayed on the operation surface to the next page.
  • the user presses the operation surface with a finger or the like when the second page is displayed on the operation surface.
  • the page management unit instructs the display unit to display the first page based on the page information when the pressing sensor detects pressing on the operation surface.
  • the page management unit erases the page information after the page information is stored, and when the press sensor detects a press on the operation surface for a certain time or more.
  • the user when the user wants to reset the first page, the user presses the operation surface with a pressing force equal to or greater than a predetermined threshold for a certain period of time. Thereby, the page information of the first page is deleted, and the user can newly determine the first page.
  • the display device of the present invention preferably has the following configuration.
  • the display device of the present invention includes a touch sensor that detects an operation position on the operation surface. And a display part provides a some display area in an operation surface, and displays an image in each display area.
  • the operation position detected by the touch sensor when the display unit displays the first page in the first display region of the plurality of display regions is in the first display region,
  • the pressing sensor detects pressing on the operation surface, page information is stored.
  • the user can switch the page displayed in each display area on the operation surface to the next page by repeating the operation on each display area on the operation surface.
  • the user presses the display area where the page is displayed with a finger or the like.
  • the page management unit treats the page as the first page when the press sensor detects a press on the operation surface in the display area, and sets the display area displaying the first page as the first display area. Handle and store page information of the first page.
  • the page management unit is configured such that the operation position detected by the touch sensor when the display unit displays the second page in the first display region is within the first display region.
  • the pressing sensor detects pressing on the operation surface, it is preferable to instruct the display unit to display the first page in the first display area based on the page information.
  • a page management part will instruct
  • the first page is displayed again on the operation surface in the first display area. Therefore, in this configuration, the user does not need to repeat the operation for returning from the second page to the first page a plurality of times.
  • the page management unit stores the page information, and then the operation position detected by the touch sensor is in the second display area among the plurality of display areas, and the pressure sensor. It is preferable to delete the page information when detecting a pressing on the operation surface.
  • the user when the user wants to reset the first page, the user presses the second display area with a finger or the like.
  • the second display area is an area different from the first display area. Thereby, the page information of the first page is deleted, and the user can newly determine the first page.
  • the pressure sensor has a piezoelectric film formed of a chiral polymer.
  • the signal level of the pressure detection signal can be detected reliably and with high sensitivity.
  • the chiral polymer is preferably polylactic acid.
  • the signal level of the pressure detection signal can be detected reliably and with high sensitivity.
  • the polylactic acid is preferably L-type polylactic acid.
  • the signal level of the pressure detection signal can be detected reliably and with high sensitivity.
  • FIG. 1 is an external perspective view of a display device 1 according to a first embodiment of the present invention.
  • FIG. 2 is a cross-sectional view taken along line SS shown in FIG. It is a top view of touch sensor 11D shown in FIG. It is a top view of the press sensor 11P shown in FIG.
  • It is a block diagram of the display apparatus 1 shown in FIG. It is a flowchart which shows the process which the control part 20 shown in FIG. 5 performs.
  • FIG. 2 is a diagram illustrating an example of a first page displayed on an operation surface 101 illustrated in FIG. 1.
  • FIG. 3 is a diagram illustrating an example of a second page displayed on the operation surface 101 illustrated in FIG. 1.
  • FIG. 1 is an external perspective view of a display device 1 according to the first embodiment of the present invention.
  • 2 is a cross-sectional view taken along line SS shown in FIG.
  • FIG. 3 is a plan view of the touch sensor 11D shown in FIG.
  • FIG. 4 is a plan view of the press sensor 11P shown in FIG.
  • FIG. 5 is a block diagram of the display device 1 shown in FIG.
  • the display device 1 includes a casing 100 having a size that is portable.
  • the display device 1 is, for example, a tablet or a smartphone.
  • the housing 100 has a rectangular parallelepiped shape whose length and width are larger than the thickness, and has a shape in which the top surface is opened. As shown in FIGS. 1 and 2, the casing 100 is fitted with a flat operation input unit 10 so as to close the opening surface of the casing 100.
  • One main surface of the operation input unit 10 is an operation surface 101.
  • the operation input unit 10 is made of a translucent material.
  • the touch sensor 11D and the press sensor 11P are combined to form the operation input unit 10.
  • the touch sensor 11 ⁇ / b> D, the pressure sensor 11 ⁇ / b> P, and the display unit 30 have a flat plate shape, and are arranged on the housing 100 such that the flat plate surfaces are parallel to the operation surface 101 of the housing 100.
  • a circuit board (not shown) is disposed between the bottom surface of the housing 100 and the display unit 30, and a control circuit module 52 is mounted on the circuit board.
  • the control circuit module 52 is a module that implements the control unit 20, the storage unit 21, the RAM 22, the wireless LAN communication unit 60, and the 3G communication unit 61 illustrated in FIG.
  • the control circuit module 52 is connected to the touch sensor 11 ⁇ / b> D, the press sensor 11 ⁇ / b> P, the display unit 30, and the battery 70.
  • the touch sensor 11D includes a flat insulating substrate 11D1, a plurality of capacitance detection electrodes 11D2, a plurality of capacitance detection electrodes 11D3, and a protective film 11D4.
  • a flat insulating substrate 11D1 a plurality of capacitance detection electrodes 11D2, a plurality of capacitance detection electrodes 11D3, and a protective film 11D4.
  • a protective film 11D4 is provided on the surface of the touch sensor 11D opposite to the pressure sensor 11P.
  • the protective film 11D4 is made of a flexible and insulating material.
  • the protective film 11D4 is made of a translucent material. For example, PET or PP may be used for the protective film 11D4.
  • the insulating substrate 11D1 is made of a light-transmitting material. As shown in FIGS. 2 and 3, a plurality of capacitance detection electrodes 11D2 are formed on one flat plate surface of the insulating substrate 11D1.
  • the plurality of capacitance detection electrodes 11 ⁇ / b> D ⁇ b> 2 are long and have a shape in which the long direction is along the first direction.
  • the plurality of capacitance detection electrodes 11D2 are arranged at intervals along a second direction orthogonal to the first direction.
  • a plurality of capacitance detection electrodes 11D3 are formed on the other flat plate surface of the insulating substrate 11D1.
  • the plurality of capacitance detection electrodes 11 ⁇ / b> D ⁇ b> 3 are long and have a shape in which the long direction follows the second direction.
  • the plurality of capacitance detection electrodes 11D3 are arranged at intervals along the first direction.
  • the plurality of capacitance detection electrodes 11D2 and 11D3 are made of a light-transmitting material.
  • the touch sensor 11D detects a change in capacitance that occurs when a user's finger approaches or comes into contact with the capacitance detection electrodes 11D2 and 11D3, and uses a signal based on this detection as an operation detection signal as a control circuit module. To 52.
  • the press sensor 11P has a flat film-like piezoelectric film 11P1 and press detection electrodes 11P2 and 11P3 as shown in FIGS. Press detection electrodes 11P2 and 11P3 are formed on the opposing flat film surfaces of the piezoelectric film 11P1. The press detection electrodes 11P2 and 11P3 are formed on substantially the entire flat film surface of the piezoelectric film 11P1.
  • the pressure sensor 11P detects charges generated by bending of the piezoelectric film 11P1 when the user presses the flat film surface of the piezoelectric film 11P1, using the pressure detection electrodes 11P2 and 11P3, and a signal based on this detection is detected as a pressure detection signal. To the control circuit module 52.
  • the piezoelectric film 11P1 may be a film having piezoelectricity, but is preferably formed of uniaxially stretched polylactic acid (PLA), and further L-type polylactic acid (PLLA).
  • PLA uniaxially stretched polylactic acid
  • PLLA L-type polylactic acid
  • PLLA is a chiral polymer, and the main chain has a helical structure.
  • PLLA is uniaxially stretched and has piezoelectricity when the molecules are oriented.
  • the uniaxially stretched PLLA generates electric charges when the flat film surface of the piezoelectric film is pressed. At this time, the amount of charge generated is uniquely determined by the amount of displacement of the flat membrane surface in the direction orthogonal to the flat membrane surface by pressing.
  • the piezoelectric constant of uniaxially stretched PLLA belongs to a very high class among polymers.
  • the draw ratio is preferably about 3 to 8 times.
  • the same effect as uniaxial stretching can be obtained by varying the stretching ratio of each axis. For example, when a certain direction is the X axis, the X axis direction is 8 times, and the Y axis direction orthogonal to the X axis is doubled, and the piezoelectric constant is about 4 times uniaxially stretched in the X axis direction. Is almost the same effect. A film that is simply uniaxially stretched easily tears along the direction of the stretch axis, and thus the strength can be increased somewhat by performing biaxial stretching as described above.
  • PLLA generates piezoelectricity by molecular orientation processing such as stretching, and there is no need to perform poling processing like other polymers such as PVDF and piezoelectric ceramics. That is, the piezoelectricity of PLLA that does not belong to ferroelectrics is not expressed by the polarization of ions like ferroelectrics such as PVDF and PZT, but is derived from a helical structure that is a characteristic structure of molecules. is there.
  • the pyroelectricity generated in other ferroelectric piezoelectric materials does not occur in PLLA.
  • PVDF or the like shows a change in piezoelectric constant over time, and in some cases, the piezoelectric constant may be significantly reduced, but the piezoelectric constant of PLLA is extremely stable over time. Therefore, it is possible to detect displacement due to pressing with high sensitivity without being affected by the surrounding environment.
  • the uniaxially stretched direction 900 forms an angle of approximately 45 ° with respect to the two orthogonal directions along the side surface of the housing 100, as shown in FIGS.
  • the housing 100 it is preferable to arrange in the housing 100. By performing such an arrangement, the displacement can be detected with higher sensitivity. Therefore, it is possible to detect the pressing and the pressing amount with higher sensitivity.
  • the pressure detection electrodes 11P2 and 11P3 use either organic electrodes mainly composed of polythiophene or polyaniline, or inorganic electrodes such as ITO, ZnO, silver nanowires, carbon nanotubes, and graphene. Is preferred. By using these materials, a highly translucent conductor pattern can be formed.
  • a display unit 30 is disposed on the other main surface of the operation input unit 10 inside the housing 100.
  • the display unit 30 includes a so-called flat display, and specifically includes a liquid crystal display element.
  • the display unit 30 includes a liquid crystal panel 301, a front polarizing plate 302, a back polarizing plate 303, and a backlight 304.
  • the front polarizing plate 302 and the back polarizing plate 303 are arranged so as to sandwich the liquid crystal panel 301 therebetween.
  • the backlight 304 is disposed on the opposite side of the liquid crystal panel 301 with the back polarizing plate 303 interposed therebetween.
  • the display device 1 includes an operation input unit 10, a control unit 20, a storage unit 21, a RAM 22, a display unit 30, a wireless LAN communication unit 60, a 3G communication unit 61, and a battery 70. .
  • control unit 20 and the RAM 22 constitute a “page management unit” of the present invention.
  • the storage unit 21 is composed of, for example, a flash memory.
  • the storage unit 21 stores a control program in which a control method for each unit of the display device 1 is described.
  • a plurality of application software including browser software to be described later is installed in this control program.
  • the control unit 20 is constituted by a CPU, for example.
  • the control unit 20 also has a timer circuit that measures the current time and the current date.
  • the control unit 20 controls the operation of each unit of the display device 1 according to a control program stored in the storage unit 21.
  • the control unit 20 expands data processed by the control program in the RAM 22.
  • the operation input unit 10 is composed of, for example, a touch panel.
  • the operation input unit 10 includes a press sensor 11P and a touch sensor 11D.
  • the display device 1 includes a physical end key (not shown) that ends the activated application software.
  • the pressing sensor 11P When the operation surface 101 of the operation input unit 10 is pressed, the pressing sensor 11P generates a pressing detection signal having a signal level D Sp corresponding to the pressing amount (pressing force). The press sensor 11P outputs a press detection signal to the control unit 20.
  • the touch sensor 11 ⁇ / b> D is a capacitance sensor, and generates an operation detection signal indicating the value of the detection capacitance of each electrode of the operation input unit 10.
  • the signal level DSd of the operation detection signal depends on the amount of change in capacitance that occurs when the user's finger approaches or touches the touch sensor 11D.
  • the touch sensor 11D outputs the generated operation detection signal to the control unit 20.
  • control unit 20 When the control unit 20 detects that the signal level DSd of the operation detection signal output from the touch sensor 11D is larger than a predetermined threshold, the control unit 20 acquires the operation position from the operation detection signal.
  • the control unit 20 determines the operation input content based on the press detection signal and the operation detection signal. At this time, the control unit 20 uses the storage unit 21 as a storage area for operation input content determination processing. The control unit 20 generates image data based on the determined operation input content and outputs it to the display unit 30.
  • the display unit 30 displays an image on the operation surface 101 based on the image data.
  • the wireless LAN communication unit 60 and the 3G communication unit 61 have an antenna (not shown).
  • the wireless LAN communication unit 60 communicates with a server device (not shown) via a wireless LAN router connected to the Internet.
  • the 3G communication unit 61 communicates with a server device (not shown) via a base station connected to the mobile phone network.
  • the battery 70 supplies DC operating power to each part of the display device 1.
  • FIG. 6 is a flowchart showing processing executed by the control unit 20 shown in FIG.
  • FIG. 7 is a diagram illustrating an example of the first page displayed on the operation surface 101 illustrated in FIG. 1.
  • FIG. 8 is a diagram illustrating an example of the second page displayed on the operation surface 101 illustrated in FIG. 1.
  • the control unit 20 starts the browser software (S1).
  • the control unit 20 designates the URL of the home page preset in the browser software in the URL input field of the browser software (S2). Thereby, the control unit 20 accesses the designated URL by the wireless LAN communication unit 60 or the 3G communication unit 61, and downloads data of the URL from a server device (not shown).
  • the data includes HTML (HyperText Markup Language), image data, and CSS (Cascading Style Sheets).
  • control unit 20 instructs the display unit 30 to display the home page according to the description of the downloaded HTML (S3).
  • control unit 20 determines whether or not the operation surface 101 has been pressed (S4), whether or not the above-described end key has been operated (S5), and whether or not a link displayed on the operation surface 101 has been operated (S6). , Is determined.
  • control unit 20 determines whether or not the signal level D Sp of the pressure detection signal output from the pressure sensor 11P is equal to or greater than a predetermined threshold value. This signal level D Sp indicates a value corresponding to the pressing force.
  • control unit 20 displays the URL of the link, the bookmark. Or a directly input URL is designated in the URL input field (S7).
  • control unit 20 accesses the designated URL by the wireless LAN communication unit 60 or the 3G communication unit 61, and downloads data of the URL from a server device (not shown). Then, the control unit 20 instructs the display unit 30 to display the page in accordance with the downloaded HTML description (S3), and continues the processing.
  • the control unit 20 treats the current page as the first page (for example, FIG. 7).
  • the page information indicating the contents of the first page is stored in the RAM 22 (S8).
  • the page information includes HTML, image data, CSS, and the like.
  • the page information uses HTML, image data, CSS, etc., but is not limited thereto.
  • HTML image data
  • CSS etc.
  • only the HTML of the first page indicating the contents of the first page or only the URL of the first page indicating the location of the first page may be used.
  • control unit 20 determines whether the above-described end key is operated (S9), whether a link displayed on the operation surface 101 is operated (S10), and whether the operation surface 101 is pressed again (S11). ), Whether or not the operation surface 101 has been pressed for a long time is determined (S12).
  • the control unit 20 determines whether or not the signal level D Sp of the pressure detection signal output from the pressure sensor 11P is equal to or greater than a predetermined threshold value.
  • control unit 20 determines whether or not the signal level D Sp equal to or greater than a predetermined threshold has continued for a certain period of time.
  • the control unit 20 displays the URL of the link, the bookmark URL, The directly input URL is designated in the URL input field (S13).
  • control unit 20 accesses the designated URL by the wireless LAN communication unit 60 or the 3G communication unit 61, and the data of the URL (specifically, HTML, image data, and CSS) is transmitted to the server device (not specified). Download from (shown).
  • the data of the URL specifically, HTML, image data, and CSS
  • control unit 20 instructs the display unit 30 to display the page according to the description of the downloaded HTML (S14). Then, the control unit 20 returns to S9 and continues the process.
  • the control unit 20 displays page information of the first page (in this embodiment, HTML, Image data and CSS) are read from the RAM 22 (S15).
  • the control unit 20 when the URL of the first page is read from the RAM 22 as the page information of the first page, the control unit 20 further accesses the read URL by the wireless LAN communication unit 60 or the 3G communication unit 61.
  • the URL data is downloaded from a server device (not shown).
  • control unit 20 instructs the display unit 30 to display the first page according to the page information read from the RAM 22 (S16). Then, the control unit 20 returns to S9 and continues the process.
  • the first page is displayed again on the operation surface 101 (see, for example, FIG. 7). Therefore, in this configuration, the user does not need to repeat the operation for returning from the second page to the first page a plurality of times.
  • the user presses the operation surface 101 with a finger or the like for a predetermined time or more.
  • control unit 20 When it is determined that the signal level D Sp equal to or greater than the predetermined threshold has continued for a certain time (Y in S12), the control unit 20 erases the page information of the first page stored in the RAM 22 (S17). Then, the control unit 20 returns to S4 and continues the process.
  • the page information of the first page is erased from the RAM 22, and the user can newly determine the first page.
  • control unit 20 erases the page information of the first page stored in the RAM 22 (S18). Then, the control unit 20 ends the browser software (S19).
  • FIG. 9 is a flowchart showing processing executed by the control unit 20 of the display device 2 according to the second embodiment of the present invention.
  • FIG. 10 is a diagram illustrating an example of a first page displayed on the operation surface 101 of the display device 2 according to the second embodiment of the present invention.
  • FIG. 11 is a diagram showing an example of a second page displayed on the operation surface 101 of the display device 2 according to the second embodiment of the present invention.
  • the configuration of the display device 2 of the second embodiment is the same as the configuration of the display device 1 of the first embodiment.
  • the difference between the display device 2 of the second embodiment and the display device 1 of the first embodiment is the display method of the display unit 30 and the processing executed by the control unit 20.
  • the display unit 30 includes a plurality of windows 111 and 112 in the operation surface 101 and displays an image in each of the windows 111 and 112.
  • the processing executed by the control unit 20 of the display device 2 according to the second embodiment includes S3, S7, S8, S11, S15, and S16 in FIG. It is replaced with S27 and S25 and S28 are added.
  • the other processes (S1, S2, S4 to S6, S9, S10, S12 to S14, and S17 to S19) are the same as the processes shown in FIG.
  • control unit 20 instructs the display unit 30 to display a home page in each display area according to the description of HTML downloaded from a server device (not shown) (S21).
  • control unit 20 determines whether or not the operation surface 101 has been pressed (S4), whether or not the above-described end key has been operated (S5), and whether or not a link displayed on the operation surface 101 has been operated (S6). , Is determined.
  • the control unit 20 displays the URL of the link, the bookmark URL,
  • the directly input URL is designated in the URL input field of the operated display area (S22).
  • control unit 20 accesses the designated URL by the wireless LAN communication unit 60 or the 3G communication unit 61, and downloads data of the URL from a server device (not shown). Then, the control unit 20 instructs the display unit 30 to display the page in accordance with the downloaded HTML description (S3), and continues the processing.
  • the user searches the website on the Internet or follows the link by touching the windows 111 and 112 of the operation surface 101. Suppose you are browsing around one after another.
  • the control unit 20 treats the current page as the first page and also performs the first The current window displaying this page is handled as the first display area, and the page information of the first page and the identification information for identifying the first display area are stored in the RAM 22 (S23).
  • the control unit 20 treats the window 111 as the first display area, page information of the first page displayed in the window 111, and identification information that identifies the window 111 as the first display area Is stored in the RAM 22.
  • control unit 20 determines whether or not the above-described end key has been operated (S9), whether or not a link displayed on the operation surface 101 has been operated (S10), whether the operation surface 101 is within the first display area. It is determined whether or not the operation surface 101 is pressed again (S24), whether or not the operation surface 101 is pressed for a long time (S12), and whether or not the operation surface 101 is pressed within the second display area (S25).
  • control unit 20 determines whether or not the signal level D Sp of the pressure detection signal that is pressed in the first display area and output from the pressure sensor 11P is equal to or greater than a predetermined threshold value. In S25, the control unit 20 determines whether or not the signal level D Sp of the pressure detection signal that is pressed in the second display area and output from the pressure sensor 11P is equal to or greater than a predetermined threshold value.
  • the user searches for a website on the Internet or follows a link by touching each of the windows 111 and 112 of the operation surface 101. It is assumed that the user browses around one after another. In this scene, when the user browses and turns around, a second page different from the first page is displayed in the first display area.
  • the user wants to display the first page again in the first display area of the operation surface 101, the user is in the first display area where the second page is displayed. Press with your finger. For example, in FIG. 11, the user presses the inside of the window 111 in which the second page is displayed with a finger or the like.
  • the control unit 20 When it is determined that the signal level D Sp of the pressure detection signal that is pressed in the first display area and output from the pressure sensor 11P is equal to or greater than a predetermined threshold (Y in S24), the control unit 20 is stored in the RAM 22.
  • the page information of the first page (in this embodiment, HTML, image data, and CSS) is read from the RAM 22 (S26).
  • control unit 20 instructs the display unit 30 to display the first page in the first display area in accordance with the HTML description read from the RAM 22 (S27). Then, the control unit 20 returns to S9 and continues the process.
  • the first page is displayed again in the first display area.
  • the first page is displayed in the window 111. Therefore, in this configuration, the user does not need to repeat the operation for returning from the second page to the first page a plurality of times.
  • the user-friendliness can be improved as in the display device 1 of the first embodiment.
  • the user presses the second display area with a finger or the like.
  • the user presses the inside of the window 112 with a finger or the like.
  • the control unit 20 If it is determined that the signal level D Sp of the pressure detection signal that is pressed in the second display area and output from the pressure sensor 11P is equal to or greater than a predetermined threshold (Y in S25), the control unit 20 is stored in the RAM 22. The page information of the first page is erased (S28). Then, the control unit 20 returns to S4 and continues the process.
  • the page information of the first page is erased from the RAM 22, and the user can newly determine the first page.
  • the display unit 30 displays the page received by the communication unit on the operation surface 111, but the present invention is not limited to this.
  • the display device may include a memory card slot, and a page read from a memory card inserted into the memory card slot may be displayed on the operation surface.
  • the browser software is activated, but the present invention is not limited to this.
  • the present invention is, for example, a type of application software that switches a page displayed on the operation surface by repeatedly operating the operation surface (for example, application software that displays a plurality of photographs taken by the user on the operation surface).
  • the storage management unit may store the page number as page information indicating the location of the first page.

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Abstract

A display apparatus (1) is provided with an operation input unit (10), control unit (20), storage unit (21), RAM (22), display unit (30), wireless LAN communication unit (60), 3G communication unit (61), and battery (70). The operation input unit (10) has a press sensor (11P) and a touch sensor (11D). When an operation surface (101) of the operation input unit (10) is pressed, the press sensor (11P) outputs to the control unit (20) a press detection signal at a signal level (DSp) corresponding to a press quantity (press force). When it is determined that the signal level (DSp) of the press detection signal outputted from the press sensor (11P) is equal to or more than a predetermined threshold value, the control unit (20) stores in the RAM (22) page information that indicates contents of a first page. When it is determined that the signal level (DSp) of the press detection signal outputted from the press sensor (11P) is equal to or more than the predetermined threshold value, the control unit (20) instructs the display unit (30) to display the first page.

Description

表示装置Display device
　本発明は、画像を画面に表示し、ユーザが当該画面を触わることで操作入力を検出する表示装置に関する。 The present invention relates to a display device that displays an image on a screen and detects an operation input by a user touching the screen.
　従来、画像を画面に表示する表示装置が各種考案されている。例えば、特許文献１には、画面に画像を表示する表示部と、その表示部の周囲に設けられた複数の操作スイッチとを備える薄型表示装置が開示されている。 Conventionally, various display devices for displaying images on the screen have been devised. For example, Patent Document 1 discloses a thin display device that includes a display unit that displays an image on a screen and a plurality of operation switches provided around the display unit.
　当該薄型表示装置は、表示部の画面にページを表示する。複数の操作スイッチには、現在表示されているページの次のページを表示する第１スイッチと、現在表示されているページの前のページを表示する第２スイッチと、が含まれている。第１スイッチへの操作を繰り返すことで、ユーザは、表示部の画面に表示されるページを次のページに切り替えていくことができる。 The thin display device displays a page on the screen of the display unit. The plurality of operation switches include a first switch that displays the next page of the currently displayed page, and a second switch that displays the previous page of the currently displayed page. By repeating the operation on the first switch, the user can switch the page displayed on the screen of the display unit to the next page.
特開２００２－３７３０４５号公報JP 2002-373045 A
　しかしながら、例えば特許文献１の薄型表示装置が、第１のページを表示した後、第１スイッチへの操作をユーザが繰り返すことで、第１のページと異なる第２のページを表示しているとき、ユーザは、もう一度、第１のページを画面に表示させたいと考える場合がある。 However, for example, when the thin display device of Patent Document 1 displays the first page and then displays the second page different from the first page by the user repeating the operation on the first switch. The user may want to display the first page on the screen again.
　この場合、ユーザは、第２のページから第１のページに戻すため第２スイッチへの操作を複数回繰り返す必要がある。したがって、特許文献１の薄型表示装置には、第２スイッチへの操作回数が増加するにつれて操作に手間がかかり、ユーザの使い勝手が悪いという問題がある。 In this case, the user needs to repeat the operation to the second switch a plurality of times in order to return from the second page to the first page. Therefore, the thin display device of Patent Document 1 has a problem that the operation is troublesome as the number of operations to the second switch increases, and the user's usability is poor.
　そこで、本発明は、ユーザの使い勝手を向上させた表示装置を提供することを目的とする。 Therefore, an object of the present invention is to provide a display device with improved user convenience.
　この発明の表示装置は、表示部、押圧センサ、及びページ管理部を備える。表示部は、操作面に画像を表示する。押圧センサは、操作面への押圧を検出する。ページ管理部は、表示部が第１のページを操作面に表示しているときに押圧センサが操作面への押圧を検出すると、第１のページの内容および存在位置の少なくとも一方を示すページ情報を記憶する。ページ管理部は、第１のページと異なる第２のページを表示部が操作面に表示しているときに押圧センサが操作面への押圧を検出すると、ページ情報に基づいて、第１のページを表示するよう表示部に指示する。 The display device of the present invention includes a display unit, a press sensor, and a page management unit. The display unit displays an image on the operation surface. The pressure sensor detects a pressure on the operation surface. When the display unit displays the first page on the operation surface and the pressure sensor detects a pressure on the operation surface, the page management unit displays page information indicating at least one of the content of the first page and the existing position. Remember. When the pressure sensor detects a pressing on the operation surface when the display unit displays a second page different from the first page on the operation surface, the page management unit detects the first page based on the page information. Is displayed on the display unit.
　ユーザは、操作面に表示されるページを次のページに切り替えていくとき、後でもう一度見たいページがあった場合、そのページが操作面に表示されているときに操作面を指等で押圧する。ページ管理部は、押圧センサが操作面への押圧を検出すると、そのページを第１のページとして扱い、第１のページのページ情報を記憶する。ページ情報は、例えば、第１のページのＨＴＭＬ、第１のページのＵＲＬ、又は第１のページのページ番号などである。 When the user switches the page displayed on the operation surface to the next page and there is a page that he / she wants to see again later, he / she presses the operation surface with his / her finger when the page is displayed on the operation surface To do. When the press sensor detects a press on the operation surface, the page management unit treats the page as the first page and stores the page information of the first page. The page information is, for example, the HTML of the first page, the URL of the first page, or the page number of the first page.
　その後、ユーザは、操作面に表示されるページを次のページに切り替えていく。このとき、ユーザは、もう一度、第１のページを操作面に表示させたいと考えた場合、第２のページが操作面に表示されているときに操作面を指等で押圧する。ページ管理部は、押圧センサが操作面への押圧を検出すると、ページ情報に基づいて、第１のページを表示するよう表示部に指示する。 After that, the user switches the page displayed on the operation surface to the next page. At this time, when the user wants to display the first page again on the operation surface, the user presses the operation surface with a finger or the like when the second page is displayed on the operation surface. The page management unit instructs the display unit to display the first page based on the page information when the pressing sensor detects pressing on the operation surface.
　これにより、もう一度、第１のページが操作面に表示される。そのため、この構成では、ユーザは、第２のページから第１のページに戻すための操作を複数回繰り返す必要がない。 This will display the first page again on the operation surface. Therefore, in this configuration, the user does not need to repeat the operation for returning from the second page to the first page a plurality of times.
　したがって、この構成によれば、ユーザの使い勝手を向上させることができる。 Therefore, according to this configuration, user convenience can be improved.
　また、この発明の表示装置では、ページ管理部は、ページ情報を記憶した後、押圧センサが操作面への一定時間以上の押圧を検出すると、ページ情報を消去することが好ましい。 In the display device according to the present invention, it is preferable that the page management unit erases the page information after the page information is stored, and when the press sensor detects a press on the operation surface for a certain time or more.
　この構成では、第１のページをリセットしたいと考えた場合、ユーザは、操作面を所定閾値以上の押圧力で一定時間以上押圧する。これにより、第１のページのページ情報が消去され、ユーザは、第１のページを新たに決め直すことができる。 In this configuration, when the user wants to reset the first page, the user presses the operation surface with a pressing force equal to or greater than a predetermined threshold for a certain period of time. Thereby, the page information of the first page is deleted, and the user can newly determine the first page.
　また、この発明の表示装置では、次の構成であることが好ましい。この発明の表示装置は、操作面への操作位置を検出するタッチセンサを備える。そして、表示部は、操作面内に複数の表示領域を設け、各表示領域で画像を表示する。ページ管理部は、表示部が複数の表示領域の内の第１の表示領域に第１のページを表示しているときにタッチセンサによって検出された操作位置が第１の表示領域内であり、且つ、押圧センサが操作面への押圧を検出すると、ページ情報を記憶する。 Further, the display device of the present invention preferably has the following configuration. The display device of the present invention includes a touch sensor that detects an operation position on the operation surface. And a display part provides a some display area in an operation surface, and displays an image in each display area. In the page management unit, the operation position detected by the touch sensor when the display unit displays the first page in the first display region of the plurality of display regions is in the first display region, When the pressing sensor detects pressing on the operation surface, page information is stored.
　この構成では、操作面の各表示領域への操作を繰り返すことで、ユーザは、操作面の各表示領域に表示されるページを次のページに切り替えていくことができる。このとき、後でもう一度見たいページがあった場合、ユーザは、そのページが表示されている表示領域内を指等で押圧する。ページ管理部は、その表示領域内で押圧センサが操作面への押圧を検出すると、そのページを第１のページとして扱い、第１のページを表示している表示領域を第１の表示領域として扱い、第１のページのページ情報を記憶する。 In this configuration, the user can switch the page displayed in each display area on the operation surface to the next page by repeating the operation on each display area on the operation surface. At this time, when there is a page to be viewed again later, the user presses the display area where the page is displayed with a finger or the like. The page management unit treats the page as the first page when the press sensor detects a press on the operation surface in the display area, and sets the display area displaying the first page as the first display area. Handle and store page information of the first page.
　したがって、この構成によれば、操作面内に複数の表示領域が設けられる場合でも、ユーザは、第１のページを設定することができる。 Therefore, according to this configuration, even when a plurality of display areas are provided in the operation surface, the user can set the first page.
　また、この発明の表示装置では、ページ管理部は、表示部が第２のページを第１の表示領域に表示しているときにタッチセンサによって検出された操作位置が第１の表示領域内であり、且つ、押圧センサが操作面への押圧を検出すると、ページ情報に基づいて、第１のページを第１の表示領域に表示するよう表示部に指示することが好ましい。 In the display device according to the present invention, the page management unit is configured such that the operation position detected by the touch sensor when the display unit displays the second page in the first display region is within the first display region. In addition, when the pressing sensor detects pressing on the operation surface, it is preferable to instruct the display unit to display the first page in the first display area based on the page information.
　この構成では、もう一度、第１のページを操作面に表示させたいとユーザが考えた場合、ユーザは、第２のページが第１の表示領域に表示されているときに第１の表示領域内を指等で押圧する。ページ管理部は、第１の表示領域内で押圧センサが操作面への押圧を検出すると、ページ情報に基づいて、第１のページを第１の表示領域に表示するよう表示部に指示する。 In this configuration, when the user wants to display the first page again on the operation surface, the user can display the first page in the first display area when the second page is displayed in the first display area. Press with your finger. A page management part will instruct | indicate a display part to display a 1st page in a 1st display area based on page information, if a press sensor detects the press to an operation surface within a 1st display area.
　これにより、もう一度、第１のページが第１の表示領域に操作面に表示される。そのため、この構成では、ユーザは、第２のページから第１のページに戻すための操作を複数回繰り返す必要がない。 Thereby, the first page is displayed again on the operation surface in the first display area. Therefore, in this configuration, the user does not need to repeat the operation for returning from the second page to the first page a plurality of times.
　したがって、この構成によれば、操作面内に複数の表示領域が設けられる場合でも、ユーザの使い勝手を向上させることができる。 Therefore, according to this configuration, even when a plurality of display areas are provided in the operation surface, the user-friendliness can be improved.
　また、この発明の表示装置では、ページ管理部は、ページ情報を記憶した後、タッチセンサによって検出された操作位置が複数の表示領域の内の第２の表示領域内であり、且つ、押圧センサが操作面への押圧を検出すると、ページ情報を消去することが好ましい。 In the display device of the present invention, the page management unit stores the page information, and then the operation position detected by the touch sensor is in the second display area among the plurality of display areas, and the pressure sensor. It is preferable to delete the page information when detecting a pressing on the operation surface.
　この構成では、第１のページをリセットしたいと考えた場合、ユーザは、第２の表示領域内を指等で押圧する。第２の表示領域は、第１の表示領域と異なる領域である。これにより、第１のページのページ情報が消去され、ユーザは、第１のページを新たに決め直すことができる。 In this configuration, when the user wants to reset the first page, the user presses the second display area with a finger or the like. The second display area is an area different from the first display area. Thereby, the page information of the first page is deleted, and the user can newly determine the first page.
　また、この発明の表示装置では、押圧センサは、キラル高分子によって形成された圧電フィルムを有することが好ましい。 In the display device of the present invention, it is preferable that the pressure sensor has a piezoelectric film formed of a chiral polymer.
　この構成では、押圧検出信号の信号レベルを、確実且つ高感度に検出することができる。 In this configuration, the signal level of the pressure detection signal can be detected reliably and with high sensitivity.
　また、この発明の表示装置では、キラル高分子は、ポリ乳酸であることが好ましい。 In the display device of the present invention, the chiral polymer is preferably polylactic acid.
　この構成では、押圧検出信号の信号レベルを、確実且つ高感度に検出することができる。 In this configuration, the signal level of the pressure detection signal can be detected reliably and with high sensitivity.
　また、この発明の表示装置では、ポリ乳酸は、Ｌ型ポリ乳酸であることが好ましい。 In the display device of the present invention, the polylactic acid is preferably L-type polylactic acid.
　この構成では、押圧検出信号の信号レベルを、確実且つ高感度に検出することができる。 In this configuration, the signal level of the pressure detection signal can be detected reliably and with high sensitivity.
　この発明によれば、ユーザの使い勝手を向上させることができる。 According to the present invention, user convenience can be improved.
本発明の第１の実施形態に係る表示装置１の外観斜視図である。1 is an external perspective view of a display device 1 according to a first embodiment of the present invention. 図１に示すＳ－Ｓ線の断面図である。FIG. 2 is a cross-sectional view taken along line SS shown in FIG. 図２に示すタッチセンサ１１Ｄの平面図である。It is a top view of touch sensor 11D shown in FIG. 図２に示す押圧センサ１１Ｐの平面図である。It is a top view of the press sensor 11P shown in FIG. 図１に示す表示装置１のブロック図である。It is a block diagram of the display apparatus 1 shown in FIG. 図５に示す制御部２０が実行する処理を示すフローチャートである。It is a flowchart which shows the process which the control part 20 shown in FIG. 5 performs. 図１に示す操作面１０１に表示される第１のページの一例を示す図である。FIG. 2 is a diagram illustrating an example of a first page displayed on an operation surface 101 illustrated in FIG. 1. 図１に示す操作面１０１に表示される第２のページの一例を示す図である。FIG. 3 is a diagram illustrating an example of a second page displayed on the operation surface 101 illustrated in FIG. 1. 本発明の第２の実施形態に係る表示装置２の制御部２０が実行する処理を示すフローチャートである。It is a flowchart which shows the process which the control part 20 of the display apparatus 2 which concerns on the 2nd Embodiment of this invention performs. 本発明の第２の実施形態に係る表示装置２の操作面１０１に表示される第１のページの一例を示す図である。It is a figure which shows an example of the 1st page displayed on the operation surface 101 of the display apparatus 2 which concerns on the 2nd Embodiment of this invention. 本発明の第２の実施形態に係る表示装置２の操作面１０１に表示される第２のページの一例を示す図である。It is a figure which shows an example of the 2nd page displayed on the operation surface 101 of the display apparatus 2 which concerns on the 2nd Embodiment of this invention.
　本発明の第１の実施形態に係る表示装置について、図を参照して説明する。図１は、本発明の第１の実施形態に係る表示装置１の外観斜視図である。図２は、図１に示すＳ－Ｓ線の断面図である。図３は、図２に示すタッチセンサ１１Ｄの平面図である。図４は、図２に示す押圧センサ１１Ｐの平面図である。図５は、図１に示す表示装置１のブロック図である。 The display device according to the first embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an external perspective view of a display device 1 according to the first embodiment of the present invention. 2 is a cross-sectional view taken along line SS shown in FIG. FIG. 3 is a plan view of the touch sensor 11D shown in FIG. FIG. 4 is a plan view of the press sensor 11P shown in FIG. FIG. 5 is a block diagram of the display device 1 shown in FIG.
　図１に示すように、表示装置１は、携帯可能な程度の大きさからなる筐体１００を備える。表示装置１は、例えばタブレットやスマートフォンである。 As shown in FIG. 1, the display device 1 includes a casing 100 having a size that is portable. The display device 1 is, for example, a tablet or a smartphone.
　筐体１００は、長さ及び幅が厚さよりも大きな直方体形状であり、天面が開口する形状からなる。筐体１００には、図１、図２に示すように、筐体１００の開口面を塞ぐよう平板状の操作入力部１０が嵌め合されている。操作入力部１０の一方の主面が操作面１０１となる。操作入力部１０は、透光性を有する材料からなる。 The housing 100 has a rectangular parallelepiped shape whose length and width are larger than the thickness, and has a shape in which the top surface is opened. As shown in FIGS. 1 and 2, the casing 100 is fitted with a flat operation input unit 10 so as to close the opening surface of the casing 100. One main surface of the operation input unit 10 is an operation surface 101. The operation input unit 10 is made of a translucent material.
　筐体１００内には、図１、図２に示すように、操作面１０１側から、タッチセンサ１１Ｄ、押圧センサ１１Ｐ、表示部３０、制御回路モジュール５２、及び図５に示すバッテリ７０がこの順番に配置されている。タッチセンサ１１Ｄ及び押圧センサ１１Ｐは、組み合わされて、操作入力部１０を構成する。タッチセンサ１１Ｄ、押圧センサ１１Ｐ、および表示部３０は平板状であり、それぞれの平板面が筐体１００の操作面１０１に平行になるように、筐体１００に配置されている。 As shown in FIGS. 1 and 2, the touch sensor 11D, the press sensor 11P, the display unit 30, the control circuit module 52, and the battery 70 shown in FIG. Is arranged. The touch sensor 11D and the press sensor 11P are combined to form the operation input unit 10. The touch sensor 11 </ b> D, the pressure sensor 11 </ b> P, and the display unit 30 have a flat plate shape, and are arranged on the housing 100 such that the flat plate surfaces are parallel to the operation surface 101 of the housing 100.
　筐体１００の底面と表示部３０との間には、回路基板（図示せず）が配置されており、当該回路基板に制御回路モジュール５２が実装されている。制御回路モジュール５２は、図５に示す、制御部２０、記憶部２１、ＲＡＭ２２、無線ＬＡＮ通信部６０、及び３Ｇ通信部６１を実現するモジュールである。制御回路モジュール５２は、タッチセンサ１１Ｄ、押圧センサ１１Ｐ、表示部３０、及びバッテリ７０に接続されている。 A circuit board (not shown) is disposed between the bottom surface of the housing 100 and the display unit 30, and a control circuit module 52 is mounted on the circuit board. The control circuit module 52 is a module that implements the control unit 20, the storage unit 21, the RAM 22, the wireless LAN communication unit 60, and the 3G communication unit 61 illustrated in FIG. The control circuit module 52 is connected to the touch sensor 11 </ b> D, the press sensor 11 </ b> P, the display unit 30, and the battery 70.
　タッチセンサ１１Ｄは、図２、図３に示すように、平板状の絶縁性基板１１Ｄ１と、複数の静電容量検出用電極１１Ｄ２と、複数の静電容量検出用電極１１Ｄ３と、保護膜１１Ｄ４と、を有する。 As shown in FIGS. 2 and 3, the touch sensor 11D includes a flat insulating substrate 11D1, a plurality of capacitance detection electrodes 11D2, a plurality of capacitance detection electrodes 11D3, and a protective film 11D4. Have.
　タッチセンサ１１Ｄの押圧センサ１１Ｐとは反対側の面には、保護膜１１Ｄ４が設けられている。保護膜１１Ｄ４は、可撓性を有し絶縁性を有する材質からなる。保護膜１１Ｄ４は、透光性を有する材質からなる。例えば、保護膜１１Ｄ４には、ＰＥＴやＰＰを用いるとよい。 A protective film 11D4 is provided on the surface of the touch sensor 11D opposite to the pressure sensor 11P. The protective film 11D4 is made of a flexible and insulating material. The protective film 11D4 is made of a translucent material. For example, PET or PP may be used for the protective film 11D4.
　絶縁性基板１１Ｄ１は、透光性を有する材料からなる。図２、図３に示すように、絶縁性基板１１Ｄ１の一方の平板面には、複数の静電容量検出用電極１１Ｄ２が形成されている。複数の静電容量検出用電極１１Ｄ２は長尺状であり、長尺方向が第１の方向に沿う形状からなる。複数の静電容量検出用電極１１Ｄ２は、第１の方向に直交する第２の方向に沿って間隔を空けて配置されている。 The insulating substrate 11D1 is made of a light-transmitting material. As shown in FIGS. 2 and 3, a plurality of capacitance detection electrodes 11D2 are formed on one flat plate surface of the insulating substrate 11D1. The plurality of capacitance detection electrodes 11 </ b> D <b> 2 are long and have a shape in which the long direction is along the first direction. The plurality of capacitance detection electrodes 11D2 are arranged at intervals along a second direction orthogonal to the first direction.
　絶縁性基板１１Ｄ１の他方の平板面には、複数の静電容量検出用電極１１Ｄ３が形成されている。複数の静電容量検出用電極１１Ｄ３は長尺状であり、長尺方向が第２の方向に沿う形状からなる。複数の静電容量検出用電極１１Ｄ３は、第１の方向に沿って間隔を空けて配置されている。複数の静電容量検出用電極１１Ｄ２，１１Ｄ３は透光性を有する材料からなる。 A plurality of capacitance detection electrodes 11D3 are formed on the other flat plate surface of the insulating substrate 11D1. The plurality of capacitance detection electrodes 11 </ b> D <b> 3 are long and have a shape in which the long direction follows the second direction. The plurality of capacitance detection electrodes 11D3 are arranged at intervals along the first direction. The plurality of capacitance detection electrodes 11D2 and 11D3 are made of a light-transmitting material.
　タッチセンサ１１Ｄは、ユーザの指が近接したり、接触した際に生じる静電容量変化を、静電容量検出用電極１１Ｄ２，１１Ｄ３で検出し、この検出に基づく信号を操作検出信号として制御回路モジュール５２へ出力する。 The touch sensor 11D detects a change in capacitance that occurs when a user's finger approaches or comes into contact with the capacitance detection electrodes 11D2 and 11D3, and uses a signal based on this detection as an operation detection signal as a control circuit module. To 52.
　押圧センサ１１Ｐは、図２、図４に示すように、平膜状の圧電フィルム１１Ｐ１と、押圧検出電極１１Ｐ２，１１Ｐ３と、を有する。圧電フィルム１１Ｐ１の対向する各平膜面には、押圧検出電極１１Ｐ２，１１Ｐ３が形成されている。押圧検出電極１１Ｐ２，１１Ｐ３は、圧電フィルム１１Ｐ１の平膜面の略全面に形成されている。 The press sensor 11P has a flat film-like piezoelectric film 11P1 and press detection electrodes 11P2 and 11P3 as shown in FIGS. Press detection electrodes 11P2 and 11P3 are formed on the opposing flat film surfaces of the piezoelectric film 11P1. The press detection electrodes 11P2 and 11P3 are formed on substantially the entire flat film surface of the piezoelectric film 11P1.
　押圧センサ１１Ｐは、ユーザが圧電フィルム１１Ｐ１の平膜面を押圧することで、圧電フィルム１１Ｐ１が撓んで発生する電荷を、押圧検出電極１１Ｐ２，１１Ｐ３で検出し、この検出に基づく信号を押圧検出信号として制御回路モジュール５２へ出力する。 The pressure sensor 11P detects charges generated by bending of the piezoelectric film 11P1 when the user presses the flat film surface of the piezoelectric film 11P1, using the pressure detection electrodes 11P2 and 11P3, and a signal based on this detection is detected as a pressure detection signal. To the control circuit module 52.
　なお、圧電フィルム１１Ｐ１は、圧電性を有するフィルムであればよいが、好ましくは、一軸延伸されたポリ乳酸（ＰＬＡ）、さらにはＬ型ポリ乳酸（ＰＬＬＡ）によって形成されていることが好ましい。 The piezoelectric film 11P1 may be a film having piezoelectricity, but is preferably formed of uniaxially stretched polylactic acid (PLA), and further L-type polylactic acid (PLLA).
　ＰＬＬＡは、キラル高分子であり、主鎖が螺旋構造を有する。ＰＬＬＡは、一軸延伸され、分子が配向すると、圧電性を有する。そして、一軸延伸されたＰＬＬＡは、圧電フィルムの平膜面が押圧されることにより、電荷を発生する。この際、発生する電荷量は、押圧により平膜面が、当該平膜面に直交する方向へ変位する変位量によって一意的に決定される。一軸延伸されたＰＬＬＡの圧電定数は、高分子中で非常に高い部類に属する。 PLLA is a chiral polymer, and the main chain has a helical structure. PLLA is uniaxially stretched and has piezoelectricity when the molecules are oriented. The uniaxially stretched PLLA generates electric charges when the flat film surface of the piezoelectric film is pressed. At this time, the amount of charge generated is uniquely determined by the amount of displacement of the flat membrane surface in the direction orthogonal to the flat membrane surface by pressing. The piezoelectric constant of uniaxially stretched PLLA belongs to a very high class among polymers.
　したがって、ＰＬＬＡを用いることで、押圧による変位を確実且つ高感度に検出することができる。すなわち、押圧を確実に検出し、押圧量を高感度に検出することができる。 Therefore, by using PLLA, displacement due to pressing can be detected reliably and with high sensitivity. That is, it is possible to reliably detect the pressure and detect the amount of pressure with high sensitivity.
　なお、延伸倍率は３～８倍程度が好適である。延伸後に熱処理を施すことにより、ポリ乳酸の延びきり鎖結晶の結晶化が促進され圧電定数が向上する。なお、二軸延伸した場合はそれぞれの軸の延伸倍率を異ならせることによって一軸延伸と同様の効果を得ることが出来る。例えばある方向をＸ軸としてＸ軸方向に８倍、Ｘ軸に直交するＹ軸方向に２倍の延伸を施した場合、圧電定数に関してはおよそＸ軸方向に４倍の一軸延伸を施した場合とほぼ同等の効果が得られる。単純に一軸延伸したフィルムは延伸軸方向に沿って裂け易いため、前述したような二軸延伸を行うことにより幾分強度を増すことができる。 The draw ratio is preferably about 3 to 8 times. By performing a heat treatment after stretching, crystallization of the extended chain crystal of polylactic acid is promoted and the piezoelectric constant is improved. In addition, when biaxial stretching is performed, the same effect as uniaxial stretching can be obtained by varying the stretching ratio of each axis. For example, when a certain direction is the X axis, the X axis direction is 8 times, and the Y axis direction orthogonal to the X axis is doubled, and the piezoelectric constant is about 4 times uniaxially stretched in the X axis direction. Is almost the same effect. A film that is simply uniaxially stretched easily tears along the direction of the stretch axis, and thus the strength can be increased somewhat by performing biaxial stretching as described above.
　また、ＰＬＬＡは、延伸等による分子の配向処理で圧電性を生じ、ＰＶＤＦ等の他のポリマーや圧電セラミックスのように、ポーリング処理を行う必要がない。すなわち、強誘電体に属さないＰＬＬＡの圧電性は、ＰＶＤＦやＰＺＴ等の強誘電体のようにイオンの分極によって発現するものではなく、分子の特徴的な構造である螺旋構造に由来するものである。 In addition, PLLA generates piezoelectricity by molecular orientation processing such as stretching, and there is no need to perform poling processing like other polymers such as PVDF and piezoelectric ceramics. That is, the piezoelectricity of PLLA that does not belong to ferroelectrics is not expressed by the polarization of ions like ferroelectrics such as PVDF and PZT, but is derived from a helical structure that is a characteristic structure of molecules. is there.
　このため、ＰＬＬＡには、他の強誘電性の圧電体で生じる焦電性が生じない。さらに、ＰＶＤＦ等は経時的に圧電定数の変動が見られ、場合によっては圧電定数が著しく低下する場合があるが、ＰＬＬＡの圧電定数は経時的に極めて安定している。したがって、周囲環境に影響されることなく、押圧による変位を高感度に検出することができる。 Therefore, the pyroelectricity generated in other ferroelectric piezoelectric materials does not occur in PLLA. Further, PVDF or the like shows a change in piezoelectric constant over time, and in some cases, the piezoelectric constant may be significantly reduced, but the piezoelectric constant of PLLA is extremely stable over time. Therefore, it is possible to detect displacement due to pressing with high sensitivity without being affected by the surrounding environment.
　このような一軸延伸処理された圧電フィルム１１Ｐ１は、図２、図４に示すように、筐体１００の側面に沿った直交二方向に対して、一軸延伸方向９００が略４５°の角度を成すように、筐体１００に配置されることが好ましい。このような配置を行うことで、より高感度に変位を検出できる。したがって、押圧および押圧量をより高感度に検出することができる。 In such a uniaxially stretched piezoelectric film 11P1, the uniaxially stretched direction 900 forms an angle of approximately 45 ° with respect to the two orthogonal directions along the side surface of the housing 100, as shown in FIGS. Thus, it is preferable to arrange in the housing 100. By performing such an arrangement, the displacement can be detected with higher sensitivity. Therefore, it is possible to detect the pressing and the pressing amount with higher sensitivity.
　押圧検出電極１１Ｐ２，１１Ｐ３は、図２、図４に示すように、ポリチオフェンやポリアニリンを主成分とする有機電極、ＩＴＯ、ＺｎＯ、銀ナノワイヤ、カーボンナノチューブ、グラフェン等の無機電極のいずれかを用いるのが好適である。これらの材料を用いることで、透光性の高い導体パターンを形成できる。 As shown in FIG. 2 and FIG. 4, the pressure detection electrodes 11P2 and 11P3 use either organic electrodes mainly composed of polythiophene or polyaniline, or inorganic electrodes such as ITO, ZnO, silver nanowires, carbon nanotubes, and graphene. Is preferred. By using these materials, a highly translucent conductor pattern can be formed.
　図１、図２に示すように、筐体１００の内部における操作入力部１０の他方の主面には、表示部３０が配置されている。表示部３０は、所謂フラットディスプレイからなり、ここでは、具体的に液晶表示素子からなる。表示部３０は、液晶パネル３０１、表面偏光板３０２、裏面偏光板３０３、バックライト３０４を備える。表面偏光板３０２と裏面偏光板３０３は、液晶パネル３０１を挟むように配置されている。バックライト３０４は、裏面偏光板３０３を挟んで、液晶パネル３０１と反対側に配置されている。 As shown in FIGS. 1 and 2, a display unit 30 is disposed on the other main surface of the operation input unit 10 inside the housing 100. The display unit 30 includes a so-called flat display, and specifically includes a liquid crystal display element. The display unit 30 includes a liquid crystal panel 301, a front polarizing plate 302, a back polarizing plate 303, and a backlight 304. The front polarizing plate 302 and the back polarizing plate 303 are arranged so as to sandwich the liquid crystal panel 301 therebetween. The backlight 304 is disposed on the opposite side of the liquid crystal panel 301 with the back polarizing plate 303 interposed therebetween.
　次に、図５に示すように、表示装置１は、操作入力部１０、制御部２０、記憶部２１、ＲＡＭ２２、表示部３０、無線ＬＡＮ通信部６０、３Ｇ通信部６１、及びバッテリ７０を備える。 Next, as illustrated in FIG. 5, the display device 1 includes an operation input unit 10, a control unit 20, a storage unit 21, a RAM 22, a display unit 30, a wireless LAN communication unit 60, a 3G communication unit 61, and a battery 70. .
　なお、制御部２０及びＲＡＭ２２が、本発明の「ページ管理部」を構成する。 The control unit 20 and the RAM 22 constitute a “page management unit” of the present invention.
　記憶部２１は、例えばフラッシュメモリで構成されている。記憶部２１は、表示装置１の各部の制御方法が記述された制御プログラムを保存する。この制御プログラムには、後述するブラウザソフトを含む複数のアプリケーションソフトがインストールされている。 The storage unit 21 is composed of, for example, a flash memory. The storage unit 21 stores a control program in which a control method for each unit of the display device 1 is described. A plurality of application software including browser software to be described later is installed in this control program.
　制御部２０は、例えばＣＰＵで構成されている。また、制御部２０は、現在時刻や現在日を計時するタイマー回路を有している。制御部２０は、記憶部２１に保存されている制御プログラムに従って、表示装置１の各部の動作を制御する。制御部２０は、当該制御プログラムで処理されるデータをＲＡＭ２２に展開する。 The control unit 20 is constituted by a CPU, for example. The control unit 20 also has a timer circuit that measures the current time and the current date. The control unit 20 controls the operation of each unit of the display device 1 according to a control program stored in the storage unit 21. The control unit 20 expands data processed by the control program in the RAM 22.
　操作入力部１０は、例えばタッチパネルで構成されている。操作入力部１０は、押圧センサ１１Ｐ及びタッチセンサ１１Ｄを有する。さらに、表示装置１は、起動したアプリケーションソフトを終了させる物理的な終了キー（不図示）を備える。 The operation input unit 10 is composed of, for example, a touch panel. The operation input unit 10 includes a press sensor 11P and a touch sensor 11D. Further, the display device 1 includes a physical end key (not shown) that ends the activated application software.
　押圧センサ１１Ｐは、操作入力部１０の操作面１０１が押圧されると、押圧量（押圧力）に応じた信号レベルＤＳｐの押圧検出信号を生成する。押圧センサ１１Ｐは、押圧検出信号を制御部２０へ出力する。 When the operation surface 101 of the operation input unit 10 is pressed, the pressing sensor 11P generates a pressing detection signal having a signal level D Sp corresponding to the pressing amount (pressing force). The press sensor 11P outputs a press detection signal to the control unit 20.
　タッチセンサ１１Ｄは、静電容量センサであり、操作入力部１０の各電極の検出容量の値を示す操作検出信号を生成する。操作検出信号の信号レベルＤＳｄは、ユーザの指がタッチセンサ１１Ｄに近接もしくは接触した際に生じる静電容量の変化量に依存している。タッチセンサ１１Ｄは、生成した操作検出信号を制御部２０へ出力する。 The touch sensor 11 </ b> D is a capacitance sensor, and generates an operation detection signal indicating the value of the detection capacitance of each electrode of the operation input unit 10. The signal level DSd of the operation detection signal depends on the amount of change in capacitance that occurs when the user's finger approaches or touches the touch sensor 11D. The touch sensor 11D outputs the generated operation detection signal to the control unit 20.
　制御部２０は、タッチセンサ１１Ｄから出力された操作検出信号の信号レベルＤＳｄが所定閾値よりも大きいことを検出すると、その操作検出信号から操作位置を取得する。 When the control unit 20 detects that the signal level DSd of the operation detection signal output from the touch sensor 11D is larger than a predetermined threshold, the control unit 20 acquires the operation position from the operation detection signal.
　制御部２０は、押圧検出信号と操作検出信号とに基づいて、操作入力内容を決定する。この際、制御部２０は、記憶部２１を操作入力内容の判断処理用の記憶領域として用いる。制御部２０は、決定した操作入力内容に基づく画像データを生成し、表示部３０へ出力する。 The control unit 20 determines the operation input content based on the press detection signal and the operation detection signal. At this time, the control unit 20 uses the storage unit 21 as a storage area for operation input content determination processing. The control unit 20 generates image data based on the determined operation input content and outputs it to the display unit 30.
　表示部３０は、画像データに基づいて操作面１０１に画像を表示する。 The display unit 30 displays an image on the operation surface 101 based on the image data.
　無線ＬＡＮ通信部６０及び３Ｇ通信部６１は、不図示のアンテナを有している。無線ＬＡＮ通信部６０は、インターネットに接続された無線ＬＡＮルータを介してサーバ装置（不図示）と通信する。３Ｇ通信部６１は、携帯電話網に接続された基地局を介してサーバ装置（不図示）と通信する。 The wireless LAN communication unit 60 and the 3G communication unit 61 have an antenna (not shown). The wireless LAN communication unit 60 communicates with a server device (not shown) via a wireless LAN router connected to the Internet. The 3G communication unit 61 communicates with a server device (not shown) via a base station connected to the mobile phone network.
　バッテリ７０は、表示装置１の各部に対してＤＣ動作電源の供給を行う。 The battery 70 supplies DC operating power to each part of the display device 1.
　次に、制御部２０のブラウザソフト起動時の動作について、図６、図７、図８を参照して説明する。図６は、図５に示す制御部２０が実行する処理を示すフローチャートである。図７は、図１に示す操作面１０１に表示される第１のページの一例を示す図である。図８は、図１に示す操作面１０１に表示される第２のページの一例を示す図である。 Next, the operation of the control unit 20 when the browser software is activated will be described with reference to FIG. 6, FIG. 7, and FIG. FIG. 6 is a flowchart showing processing executed by the control unit 20 shown in FIG. FIG. 7 is a diagram illustrating an example of the first page displayed on the operation surface 101 illustrated in FIG. 1. FIG. 8 is a diagram illustrating an example of the second page displayed on the operation surface 101 illustrated in FIG. 1.
　制御部２０は、操作面１０１に表示される複数のアプリケーションソフトのアイコンの内ブラウザソフトのアイコンをユーザがタッチすると、ブラウザソフトを起動する（Ｓ１）。 When the user touches the browser software icon among the plurality of application software icons displayed on the operation surface 101, the control unit 20 starts the browser software (S1).
　制御部２０は、ブラウザソフトを起動すると、ブラウザソフトに予め設定されているホームページのＵＲＬをブラウザソフトのＵＲＬ入力欄に指定する（Ｓ２）。これにより、制御部２０は、無線ＬＡＮ通信部６０又は３Ｇ通信部６１によって、指定されたＵＲＬにアクセスし、そのＵＲＬのデータをサーバ装置（不図示）からダウンロードする。当該データは、ＨＴＭＬ（ＨｙｐｅｒＴｅｘｔ　Ｍａｒｋｕｐ　Ｌａｎｇｕａｇｅ）、画像データ、ＣＳＳ（Ｃａｓｃａｄｉｎｇ　Ｓｔｙｌｅ　Ｓｈｅｅｔｓ）を含む。 When the browser software is started, the control unit 20 designates the URL of the home page preset in the browser software in the URL input field of the browser software (S2). Thereby, the control unit 20 accesses the designated URL by the wireless LAN communication unit 60 or the 3G communication unit 61, and downloads data of the URL from a server device (not shown). The data includes HTML (HyperText Markup Language), image data, and CSS (Cascading Style Sheets).
　次に、制御部２０は、ダウンロードしたＨＴＭＬの記述に従ってホームページを表示するよう表示部３０に指示する（Ｓ３）。 Next, the control unit 20 instructs the display unit 30 to display the home page according to the description of the downloaded HTML (S3).
　そして、制御部２０は、操作面１０１が押圧されたかどうか（Ｓ４）、前述した終了キーが操作されたかどうか（Ｓ５）、操作面１０１に表示されているリンク等が操作されたかどうか（Ｓ６）、を判定する。Ｓ４において制御部２０は、押圧センサ１１Ｐから出力された押圧検出信号の信号レベルＤＳｐが所定閾値以上であるかどうかを判定する。この信号レベルＤＳｐは、押圧力に応じた値を示している。 Then, the control unit 20 determines whether or not the operation surface 101 has been pressed (S4), whether or not the above-described end key has been operated (S5), and whether or not a link displayed on the operation surface 101 has been operated (S6). , Is determined. In S4, the control unit 20 determines whether or not the signal level D Sp of the pressure detection signal output from the pressure sensor 11P is equal to or greater than a predetermined threshold value. This signal level D Sp indicates a value corresponding to the pressing force.
　Ｓ６において、操作面１０１に表示されているリンクやブックマークをユーザがタッチしたとき、又はユーザが所定のＵＲＬをブラウザソフトのＵＲＬ入力欄に直接入力したとき、制御部２０は、リンクのＵＲＬ、ブックマークのＵＲＬ又は直接入力されたＵＲＬを、ＵＲＬ入力欄に指定する（Ｓ７）。 In S6, when the user touches a link or bookmark displayed on the operation surface 101, or when the user directly inputs a predetermined URL into the URL input field of the browser software, the control unit 20 displays the URL of the link, the bookmark. Or a directly input URL is designated in the URL input field (S7).
　これにより、制御部２０は、無線ＬＡＮ通信部６０又は３Ｇ通信部６１によって、指定されたＵＲＬにアクセスし、そのＵＲＬのデータをサーバ装置（不図示）からダウンロードする。そして、制御部２０は、ダウンロードしたＨＴＭＬの記述に従ってページを表示するよう表示部３０に指示し（Ｓ３）、処理を継続する。 Thereby, the control unit 20 accesses the designated URL by the wireless LAN communication unit 60 or the 3G communication unit 61, and downloads data of the URL from a server device (not shown). Then, the control unit 20 instructs the display unit 30 to display the page in accordance with the downloaded HTML description (S3), and continues the processing.
　一方、Ｓ５において、ブラウザソフトを起動して直ぐにユーザが終了キーを操作した場合や、操作面１０１を押圧せずにユーザが終了キーを操作した場合、制御部２０は、ブラウザソフトを終了する（Ｓ１９）。 On the other hand, in S5, when the user operates the end key immediately after starting the browser software, or when the user operates the end key without pressing the operation surface 101, the control unit 20 ends the browser software ( S19).
　ここで、Ｓ３～Ｓ７では、ユーザが、操作面１０１をタッチすることで、インターネット上のウェブサイトを検索したり、リンクをたどったりし、次々と閲覧して回る場面を想定している。この場面において、後でもう一度見たいページがあった場合、ユーザは、そのページが操作面１０１に表示されているときに操作面１０１を指等で押圧する。 Here, in S3 to S7, it is assumed that the user touches the operation surface 101 to search a website on the Internet, follow a link, and browse one after another. In this scene, when there is a page to be viewed again later, the user presses the operation surface 101 with a finger or the like when the page is displayed on the operation surface 101.
　押圧センサ１１Ｐから出力された押圧検出信号の信号レベルＤＳｐが所定閾値以上であることを判定すると（Ｓ４のＹ）、制御部２０は、現在のページを第１のページとして扱い（例えば図７参照）、第１のページの内容を示すページ情報をＲＡＭ２２に保存する（Ｓ８）。当該ページ情報は、ＨＴＭＬ、画像データ、及びＣＳＳ等である。 When it is determined that the signal level D Sp of the pressure detection signal output from the pressure sensor 11P is equal to or higher than the predetermined threshold (Y in S4), the control unit 20 treats the current page as the first page (for example, FIG. 7). The page information indicating the contents of the first page is stored in the RAM 22 (S8). The page information includes HTML, image data, CSS, and the like.
　なお、本実施形態においてページ情報は、ＨＴＭＬ、画像データ、及びＣＳＳ等を用いるが、これに限るものではない。実施の際は例えば、第１のページの内容を示す第１のページのＨＴＭＬだけ、又は第１のページの存在位置を示す第１のページのＵＲＬだけを用いても良い。 In this embodiment, the page information uses HTML, image data, CSS, etc., but is not limited thereto. For example, only the HTML of the first page indicating the contents of the first page or only the URL of the first page indicating the location of the first page may be used.
　そして、制御部２０は、前述した終了キーが操作されたかどうか（Ｓ９）、操作面１０１に表示されているリンク等が操作されたかどうか（Ｓ１０）、操作面１０１が再押圧されたかどうか（Ｓ１１）、操作面１０１が長押しされたかどうか（Ｓ１２）、を判定する。Ｓ１１において制御部２０はＳ４と同様に、押圧センサ１１Ｐから出力された押圧検出信号の信号レベルＤＳｐが所定閾値以上であるかどうかを判定する。また、Ｓ１２において制御部２０は、所定閾値以上の信号レベルＤＳｐが一定時間以上継続したかどうかを判定する。 Then, the control unit 20 determines whether the above-described end key is operated (S9), whether a link displayed on the operation surface 101 is operated (S10), and whether the operation surface 101 is pressed again (S11). ), Whether or not the operation surface 101 has been pressed for a long time is determined (S12). In S11, similarly to S4, the control unit 20 determines whether or not the signal level D Sp of the pressure detection signal output from the pressure sensor 11P is equal to or greater than a predetermined threshold value. In S12, the control unit 20 determines whether or not the signal level D Sp equal to or greater than a predetermined threshold has continued for a certain period of time.
　操作面１０１に表示されているリンクやブックマークをユーザがタッチしたとき、又はユーザが所定のＵＲＬをブラウザソフトのＵＲＬ入力欄に直接入力したとき、制御部２０は、リンクのＵＲＬ、ブックマークのＵＲＬ又は直接入力されたＵＲＬを、ＵＲＬ入力欄に指定する（Ｓ１３）。 When the user touches a link or bookmark displayed on the operation surface 101, or when the user directly inputs a predetermined URL into the URL input field of the browser software, the control unit 20 displays the URL of the link, the bookmark URL, The directly input URL is designated in the URL input field (S13).
　これにより、制御部２０は、無線ＬＡＮ通信部６０又は３Ｇ通信部６１によって、指定されたＵＲＬにアクセスし、そのＵＲＬのデータ（具体的にはＨＴＭＬ、画像データ、及びＣＳＳ）をサーバ装置（不図示）からダウンロードする。 As a result, the control unit 20 accesses the designated URL by the wireless LAN communication unit 60 or the 3G communication unit 61, and the data of the URL (specifically, HTML, image data, and CSS) is transmitted to the server device (not specified). Download from (shown).
　次に、制御部２０は、ダウンロードしたＨＴＭＬの記述に従ってページを表示するよう表示部３０に指示する（Ｓ１４）。そして、制御部２０は、Ｓ９に戻り、処理を継続する。 Next, the control unit 20 instructs the display unit 30 to display the page according to the description of the downloaded HTML (S14). Then, the control unit 20 returns to S9 and continues the process.
　ここで、Ｓ９～Ｓ１４では、ユーザが、操作面１０１をタッチすることで、インターネット上のウェブサイトを検索したり、リンクをたどったりし、次々と閲覧して回る場面を想定している。この場面では、ユーザが次々と閲覧して回ることで、第１のページと異なる第２のページが操作面１０１に表示される（例えば図８参照）。 Here, in S9 to S14, it is assumed that the user touches the operation surface 101 to search a website on the Internet, follow a link, and browse one after another. In this scene, as the user browses and turns around one after another, a second page different from the first page is displayed on the operation surface 101 (see, for example, FIG. 8).
　この場面において、もう一度、第１のページを操作面１０１に表示させたいとユーザが考えた場合、ユーザは、第２のページが操作面１０１に表示されているときに操作面１０１を指等で押圧する。 In this scene, when the user wants to display the first page on the operation surface 101 again, the user can touch the operation surface 101 with a finger or the like when the second page is displayed on the operation surface 101. Press.
　押圧センサ１１Ｐから出力された押圧検出信号の信号レベルＤＳｐが所定閾値以上であることを判定すると（Ｓ１１のＹ）、制御部２０は、第１のページのページ情報（本実施形態ではＨＴＭＬ、画像データ、及びＣＳＳ）を、ＲＡＭ２２から読み取る（Ｓ１５）。 When it is determined that the signal level D Sp of the pressure detection signal output from the pressure sensor 11P is greater than or equal to a predetermined threshold (Y in S11), the control unit 20 displays page information of the first page (in this embodiment, HTML, Image data and CSS) are read from the RAM 22 (S15).
　なお、Ｓ１５において、第１のページのページ情報として第１のページのＵＲＬを、ＲＡＭ２２から読み取る場合、制御部２０はさらに、無線ＬＡＮ通信部６０又は３Ｇ通信部６１によって、読み取ったＵＲＬにアクセスし、そのＵＲＬのデータをサーバ装置（不図示）からダウンロードする。 In S15, when the URL of the first page is read from the RAM 22 as the page information of the first page, the control unit 20 further accesses the read URL by the wireless LAN communication unit 60 or the 3G communication unit 61. The URL data is downloaded from a server device (not shown).
　次に、制御部２０は、ＲＡＭ２２から読み取ったページ情報に従って第１のページを表示するよう表示部３０に指示する（Ｓ１６）。そして、制御部２０は、Ｓ９に戻り、処理を継続する。 Next, the control unit 20 instructs the display unit 30 to display the first page according to the page information read from the RAM 22 (S16). Then, the control unit 20 returns to S9 and continues the process.
　これにより、もう一度、第１のページが操作面１０１に表示される（例えば図７参照）。そのため、この構成では、ユーザは、第２のページから第１のページに戻すための操作を複数回繰り返す必要がない。 Thereby, the first page is displayed again on the operation surface 101 (see, for example, FIG. 7). Therefore, in this configuration, the user does not need to repeat the operation for returning from the second page to the first page a plurality of times.
　したがって、この構成によれば、ユーザの使い勝手を向上させることができる。 Therefore, according to this configuration, user convenience can be improved.
　次に、第１のページをリセットしたいと考えた場合、ユーザは、操作面１０１を指等で一定時間以上押圧する。 Next, when the user wants to reset the first page, the user presses the operation surface 101 with a finger or the like for a predetermined time or more.
　所定閾値以上の信号レベルＤＳｐが一定時間以上継続したことを判定すると（Ｓ１２のＹ）、制御部２０は、ＲＡＭ２２に保存されている第１のページのページ情報を消去する（Ｓ１７）。そして、制御部２０は、Ｓ４に戻り、処理を継続する。 When it is determined that the signal level D Sp equal to or greater than the predetermined threshold has continued for a certain time (Y in S12), the control unit 20 erases the page information of the first page stored in the RAM 22 (S17). Then, the control unit 20 returns to S4 and continues the process.
　これにより、第１のページのページ情報がＲＡＭ２２から消去され、ユーザは、第１のページを新たに決め直すことができる。 Thereby, the page information of the first page is erased from the RAM 22, and the user can newly determine the first page.
　最後に、ユーザが終了キーを操作した場合（Ｓ９のＹ）、制御部２０は、ＲＡＭ２２に保存されている第１のページのページ情報を消去する（Ｓ１８）。そして、制御部２０は、ブラウザソフトを終了する（Ｓ１９）。 Finally, when the user operates the end key (Y in S9), the control unit 20 erases the page information of the first page stored in the RAM 22 (S18). Then, the control unit 20 ends the browser software (S19).
　次に、本発明の第２の実施形態に係る表示装置について、図を参照して説明する。 Next, a display device according to a second embodiment of the present invention will be described with reference to the drawings.
　図９は、本発明の第２の実施形態に係る表示装置２の制御部２０が実行する処理を示すフローチャートである。図１０は、本発明の第２の実施形態に係る表示装置２の操作面１０１に表示される第１のページの一例を示す図である。図１１は、本発明の第２の実施形態に係る表示装置２の操作面１０１に表示される第２のページの一例を示す図である。 FIG. 9 is a flowchart showing processing executed by the control unit 20 of the display device 2 according to the second embodiment of the present invention. FIG. 10 is a diagram illustrating an example of a first page displayed on the operation surface 101 of the display device 2 according to the second embodiment of the present invention. FIG. 11 is a diagram showing an example of a second page displayed on the operation surface 101 of the display device 2 according to the second embodiment of the present invention.
　第２の実施形態の表示装置２の構成は、第１の実施形態の表示装置１の構成と同じである。第２の実施形態の表示装置２と第１の実施形態の表示装置１とが相違する点は、表示部３０の表示方法と制御部２０が実行する処理とである。 The configuration of the display device 2 of the second embodiment is the same as the configuration of the display device 1 of the first embodiment. The difference between the display device 2 of the second embodiment and the display device 1 of the first embodiment is the display method of the display unit 30 and the processing executed by the control unit 20.
　詳述すると、図１０に示すように、表示部３０は、操作面１０１内に複数のウィンドウ１１１、１１２を設け、各ウィンドウ１１１、１１２内で画像を表示する。そして、図９に示すように、第２の実施形態に係る表示装置２の制御部２０が実行する処理は、図６におけるＳ３、Ｓ７、Ｓ８、Ｓ１１、Ｓ１５、Ｓ１６をＳ２１～Ｓ２４、Ｓ２６、Ｓ２７に置き換え、Ｓ２５とＳ２８を追加したものである。その他の処理（Ｓ１、Ｓ２、Ｓ４～Ｓ６、Ｓ９、Ｓ１０、Ｓ１２～Ｓ１４、Ｓ１７～Ｓ１９）については、図６に示す処理と同じであるため、説明を省略する。 More specifically, as shown in FIG. 10, the display unit 30 includes a plurality of windows 111 and 112 in the operation surface 101 and displays an image in each of the windows 111 and 112. As shown in FIG. 9, the processing executed by the control unit 20 of the display device 2 according to the second embodiment includes S3, S7, S8, S11, S15, and S16 in FIG. It is replaced with S27 and S25 and S28 are added. The other processes (S1, S2, S4 to S6, S9, S10, S12 to S14, and S17 to S19) are the same as the processes shown in FIG.
　まず、制御部２０は、サーバ装置（不図示）からダウンロードしたＨＴＭＬの記述に従ってホームページを各表示領域で表示するよう表示部３０に指示する（Ｓ２１）。 First, the control unit 20 instructs the display unit 30 to display a home page in each display area according to the description of HTML downloaded from a server device (not shown) (S21).
　そして、制御部２０は、操作面１０１が押圧されたかどうか（Ｓ４）、前述した終了キーが操作されたかどうか（Ｓ５）、操作面１０１に表示されているリンク等が操作されたかどうか（Ｓ６）、を判定する。 Then, the control unit 20 determines whether or not the operation surface 101 has been pressed (S4), whether or not the above-described end key has been operated (S5), and whether or not a link displayed on the operation surface 101 has been operated (S6). , Is determined.
　操作面１０１に表示されているリンクやブックマークをユーザがタッチしたとき、又はユーザが所定のＵＲＬをブラウザソフトのＵＲＬ入力欄に直接入力したとき、制御部２０は、リンクのＵＲＬ、ブックマークのＵＲＬ又は直接入力されたＵＲＬを、操作された表示領域のＵＲＬ入力欄に指定する（Ｓ２２）。 When the user touches a link or bookmark displayed on the operation surface 101, or when the user directly inputs a predetermined URL into the URL input field of the browser software, the control unit 20 displays the URL of the link, the bookmark URL, The directly input URL is designated in the URL input field of the operated display area (S22).
　これにより、制御部２０は、無線ＬＡＮ通信部６０又は３Ｇ通信部６１によって、指定されたＵＲＬにアクセスし、そのＵＲＬのデータをサーバ装置（不図示）からダウンロードする。そして、制御部２０は、ダウンロードしたＨＴＭＬの記述に従ってページを表示するよう表示部３０に指示し（Ｓ３）、処理を継続する。 Thereby, the control unit 20 accesses the designated URL by the wireless LAN communication unit 60 or the 3G communication unit 61, and downloads data of the URL from a server device (not shown). Then, the control unit 20 instructs the display unit 30 to display the page in accordance with the downloaded HTML description (S3), and continues the processing.
　そして、表示装置２において、Ｓ４～Ｓ６、Ｓ２１、Ｓ２２では、ユーザが、操作面１０１の各ウィンドウ１１１、１１２内をタッチすることで、インターネット上のウェブサイトを検索したり、リンクをたどったりし、次々と閲覧して回る場面を想定している。 In the display device 2, in S4 to S6, S21, and S22, the user searches the website on the Internet or follows the link by touching the windows 111 and 112 of the operation surface 101. Suppose you are browsing around one after another.
　この場面において、後でもう一度見たいページがあった場合、ユーザは、そのページが操作面１０１に表示されているときに、そのページを表示しているウィンドウ内を指等で押圧する。 In this scene, when there is a page to be viewed again later, when the page is displayed on the operation surface 101, the user presses the inside of the window displaying the page with a finger or the like.
　押圧センサ１１Ｐから出力された押圧検出信号の信号レベルＤＳｐが所定閾値以上であることを判定すると（Ｓ４のＹ）、制御部２０は、現在のページを第１のページとして扱うとともに、第１のページを表示している現在のウィンドウを第１の表示領域として扱い、第１のページのページ情報と第１の表示領域を識別する識別情報とをＲＡＭ２２に保存する（Ｓ２３）。 When it is determined that the signal level D Sp of the pressure detection signal output from the pressure sensor 11P is equal to or greater than the predetermined threshold (Y in S4), the control unit 20 treats the current page as the first page and also performs the first The current window displaying this page is handled as the first display area, and the page information of the first page and the identification information for identifying the first display area are stored in the RAM 22 (S23).
　例えば図１０では、制御部２０が、ウィンドウ１１１を第１の表示領域として扱い、ウィンドウ１１１に表示されている第１のページのページ情報とウィンドウ１１１を第１の表示領域として識別する識別情報とをＲＡＭ２２に保存する。 For example, in FIG. 10, the control unit 20 treats the window 111 as the first display area, page information of the first page displayed in the window 111, and identification information that identifies the window 111 as the first display area Is stored in the RAM 22.
　そして、制御部２０は、前述した終了キーが操作されたかどうか（Ｓ９）、操作面１０１に表示されているリンク等が操作されたかどうか（Ｓ１０）、第１の表示領域内で操作面１０１が再押圧されたかどうか（Ｓ２４）、操作面１０１が長押しされたかどうか（Ｓ１２）、第２の表示領域内で操作面１０１が押圧されたかどうか（Ｓ２５）、を判定する。 Then, the control unit 20 determines whether or not the above-described end key has been operated (S9), whether or not a link displayed on the operation surface 101 has been operated (S10), whether the operation surface 101 is within the first display area. It is determined whether or not the operation surface 101 is pressed again (S24), whether or not the operation surface 101 is pressed for a long time (S12), and whether or not the operation surface 101 is pressed within the second display area (S25).
　Ｓ２４において制御部２０は、第１の表示領域内で押圧され、押圧センサ１１Ｐから出力された押圧検出信号の信号レベルＤＳｐが所定閾値以上であるかどうかを判定する。また、Ｓ２５において制御部２０は、第２の表示領域内で押圧され、押圧センサ１１Ｐから出力された押圧検出信号の信号レベルＤＳｐが所定閾値以上であるかどうかを判定する。 In S24, the control unit 20 determines whether or not the signal level D Sp of the pressure detection signal that is pressed in the first display area and output from the pressure sensor 11P is equal to or greater than a predetermined threshold value. In S25, the control unit 20 determines whether or not the signal level D Sp of the pressure detection signal that is pressed in the second display area and output from the pressure sensor 11P is equal to or greater than a predetermined threshold value.
　ここで、Ｓ９、Ｓ１０、Ｓ２４、Ｓ１２、及びＳ２５では、ユーザが、操作面１０１の各ウィンドウ１１１、１１２内をタッチすることで、インターネット上のウェブサイトを検索したり、リンクをたどったりし、次々と閲覧して回る場面を想定している。この場面では、ユーザが次々と閲覧して回ることで、第１のページと異なる第２のページが第１の表示領域内に表示される。 Here, in S9, S10, S24, S12, and S25, the user searches for a website on the Internet or follows a link by touching each of the windows 111 and 112 of the operation surface 101. It is assumed that the user browses around one after another. In this scene, when the user browses and turns around, a second page different from the first page is displayed in the first display area.
　この場面において、もう一度、第１のページを操作面１０１の第１の表示領域内に表示させたいとユーザが考えた場合、ユーザは、第２のページが表示されている第１の表示領域内を指等で押圧する。例えば図１１ではユーザは、第２のページが表示されているウィンドウ１１１内を指等で押圧する。 In this scene, if the user wants to display the first page again in the first display area of the operation surface 101, the user is in the first display area where the second page is displayed. Press with your finger. For example, in FIG. 11, the user presses the inside of the window 111 in which the second page is displayed with a finger or the like.
　第１の表示領域内で押圧され、押圧センサ１１Ｐから出力された押圧検出信号の信号レベルＤＳｐが所定閾値以上であることを判定すると（Ｓ２４のＹ）、制御部２０は、ＲＡＭ２２に保存されている第１のページのページ情報（本実施形態ではＨＴＭＬ、画像データ、及びＣＳＳ）を、ＲＡＭ２２から読み取る（Ｓ２６）。 When it is determined that the signal level D Sp of the pressure detection signal that is pressed in the first display area and output from the pressure sensor 11P is equal to or greater than a predetermined threshold (Y in S24), the control unit 20 is stored in the RAM 22. The page information of the first page (in this embodiment, HTML, image data, and CSS) is read from the RAM 22 (S26).
　次に、制御部２０は、ＲＡＭ２２から読み取ったＨＴＭＬの記述に従って第１のページを第１の表示領域に表示するよう表示部３０に指示する（Ｓ２７）。そして、制御部２０は、Ｓ９に戻り、処理を継続する。 Next, the control unit 20 instructs the display unit 30 to display the first page in the first display area in accordance with the HTML description read from the RAM 22 (S27). Then, the control unit 20 returns to S9 and continues the process.
　これにより、もう一度、第１のページが第１の表示領域に表示される。例えば図１０に示すように、第１のページがウィンドウ１１１内に表示される。そのため、この構成では、ユーザは、第２のページから第１のページに戻すための操作を複数回繰り返す必要がない。 Thereby, the first page is displayed again in the first display area. For example, as shown in FIG. 10, the first page is displayed in the window 111. Therefore, in this configuration, the user does not need to repeat the operation for returning from the second page to the first page a plurality of times.
　したがって、第２の実施形態の表示装置２によれば、第１の実施形態の表示装置１と同様に、ユーザの使い勝手を向上させることができる。 Therefore, according to the display device 2 of the second embodiment, the user-friendliness can be improved as in the display device 1 of the first embodiment.
　次に、第１のページをリセットしたいと考えた場合、ユーザは、第２の表示領域内を指等で押圧する。例えば図１１ではユーザは、ウィンドウ１１２内を指等で押圧する。 Next, when the user wants to reset the first page, the user presses the second display area with a finger or the like. For example, in FIG. 11, the user presses the inside of the window 112 with a finger or the like.
　第２の表示領域内で押圧され、押圧センサ１１Ｐから出力された押圧検出信号の信号レベルＤＳｐが所定閾値以上であることを判定すると（Ｓ２５のＹ）、制御部２０は、ＲＡＭ２２に保存されている第１のページのページ情報を消去する（Ｓ２８）。そして、制御部２０は、Ｓ４に戻り、処理を継続する。 If it is determined that the signal level D Sp of the pressure detection signal that is pressed in the second display area and output from the pressure sensor 11P is equal to or greater than a predetermined threshold (Y in S25), the control unit 20 is stored in the RAM 22. The page information of the first page is erased (S28). Then, the control unit 20 returns to S4 and continues the process.
　これにより、第１のページのページ情報がＲＡＭ２２から消去され、ユーザは、第１のページを新たに決めなおすことができる。 As a result, the page information of the first page is erased from the RAM 22, and the user can newly determine the first page.
　なお、前記各実施形態では表示部３０が、通信手段によって受信されたページを操作面１１１に表示しているが、これに限るものではない。実施の際は例えば、表示装置がメモリーカードスロットを備え、メモリーカードスロットに差し込まれたメモリーカードから読み取ったページを操作面に表示してもよい。 In the above-described embodiments, the display unit 30 displays the page received by the communication unit on the operation surface 111, but the present invention is not limited to this. For example, the display device may include a memory card slot, and a page read from a memory card inserted into the memory card slot may be displayed on the operation surface.
　また、前記各実施形態ではブラウザソフトを起動しているが、これに限るものではない。本発明は例えば、ユーザが操作面への操作を繰り返すことで、操作面に表示されるページを切り替えていくタイプのアプリケーションソフト（例えば、ユーザが撮影した複数の写真を操作面に表示するアプリケーションソフト）にも適用できる。この場合、記憶管理部は、第１のページの存在位置を示すページ情報としてページ番号を記憶してもよい。 In each of the above embodiments, the browser software is activated, but the present invention is not limited to this. The present invention is, for example, a type of application software that switches a page displayed on the operation surface by repeatedly operating the operation surface (for example, application software that displays a plurality of photographs taken by the user on the operation surface). ). In this case, the storage management unit may store the page number as page information indicating the location of the first page.
　最後に、前記各実施形態の説明は、すべての点で例示であって、制限的なものではないと考えられるべきである。本発明の範囲は、上述の実施形態ではなく、特許請求の範囲によって示される。さらに、本発明の範囲には、特許請求の範囲と均等の意味および範囲内でのすべての変更が含まれることが意図される。 Finally, the description of each of the embodiments should be considered as illustrative in all points and not restrictive. The scope of the present invention is shown not by the above embodiments but by the claims. Furthermore, the scope of the present invention is intended to include all modifications within the meaning and scope equivalent to the scope of the claims.
１…表示装置
２…表示装置
１０…操作入力部
１１Ｄ…タッチセンサ
１１Ｄ１…絶縁性基板
１１Ｄ２，１１Ｄ３…静電容量検出用電極
１１Ｄ４…保護膜
１１Ｐ…押圧センサ
１１Ｐ１…圧電フィルム
１１Ｐ２，１１Ｐ３…押圧検出電極
２０…制御部
２１…記憶部
２２…ＲＡＭ
３０…表示部
５２…制御回路モジュール
６０…無線ＬＡＮ通信部
６１…３Ｇ通信部
７０…バッテリ
１００…筐体
１０１…操作面
１１１、１１２…ウィンドウ
３０１…液晶パネル
３０２…表面偏光板
３０３…裏面偏光板
３０４…バックライト
９００…一軸延伸方向 DESCRIPTION OF SYMBOLS 1 ... Display apparatus 2 ... Display apparatus 10 ... Operation input part 11D ... Touch sensor 11D1 ... Insulating board | substrate 11D2, 11D3 ... Electrode 11D4 for electrostatic capacitance detection ... Protective film 11P ... Press sensor 11P1 ... Piezoelectric film 11P2, 11P3 ... Press detection Electrode 20 ... Control unit 21 ... Storage unit 22 ... RAM
DESCRIPTION OF SYMBOLS 30 ... Display part 52 ... Control circuit module 60 ... Wireless LAN communication part 61 ... 3G communication part 70 ... Battery 100 ... Case 101 ... Operation surface 111,112 ... Window 301 ... Liquid crystal panel 302 ... Front surface polarizing plate 303 ... Back surface polarizing plate 304 ... Backlight 900 ... Uniaxial stretching direction

Claims (8)

  1. 　操作面に画像を表示する表示部と、
    　前記操作面への押圧を検出する押圧センサと、
    　前記表示部が第１のページを前記操作面に表示しているときに前記押圧センサが前記操作面への押圧を検出すると、前記第１のページの内容および存在位置の少なくとも一方を示すページ情報を記憶するページ管理部と、を備え、
    　前記ページ管理部は、前記第１のページと異なる第２のページを前記表示部が前記操作面に表示しているときに前記押圧センサが前記操作面への押圧を検出すると、前記ページ情報に基づいて、前記第１のページを表示するよう前記表示部に指示する、表示装置。     A display unit for displaying an image on the operation surface;
    A pressure sensor for detecting pressure on the operation surface;
    When the display unit displays the first page on the operation surface and the pressure sensor detects a pressure on the operation surface, page information indicating at least one of the content and the location of the first page A page management unit for storing
    When the pressure sensor detects a pressure on the operation surface when the display unit displays a second page different from the first page on the operation surface, the page management unit includes the page information. A display device that instructs the display unit to display the first page based on the display.
  2. 　前記ページ管理部は、前記ページ情報を記憶した後、前記押圧センサが前記操作面への一定時間以上の押圧を検出すると、前記ページ情報を消去する、請求項１に記載の表示装置。 The display device according to claim 1, wherein after the page information is stored, the page management unit erases the page information when the press sensor detects a press on the operation surface for a predetermined time or more.
  3. 　前記操作面への操作位置を検出するタッチセンサを備え、
    　前記表示部は、前記操作面内に複数の表示領域を設け、各表示領域で画像を表示し、
    　前記ページ管理部は、前記表示部が前記複数の表示領域の内の第１の表示領域に前記第１のページを表示しているときに前記タッチセンサによって検出された操作位置が前記第１の表示領域内であり、且つ、前記押圧センサが前記操作面への押圧を検出すると、前記ページ情報を記憶する、請求項１または請求項２に記載の表示装置。     A touch sensor for detecting an operation position on the operation surface;
    The display unit includes a plurality of display areas in the operation surface, and displays an image in each display area.
    The page management unit is configured such that an operation position detected by the touch sensor when the display unit displays the first page in a first display area of the plurality of display areas is the first position. 3. The display device according to claim 1, wherein the page information is stored in a display area and when the pressure sensor detects a pressure on the operation surface. 4.
  4. 　前記ページ管理部は、前記表示部が前記第２のページを前記第１の表示領域に表示しているときに前記タッチセンサによって検出された操作位置が前記第１の表示領域内であり、且つ、前記押圧センサが前記操作面への押圧を検出すると、前記ページ情報に基づいて、前記第１のページを前記第１の表示領域に表示するよう前記表示部に指示する、請求項３に記載の表示装置。 The page management unit is configured such that an operation position detected by the touch sensor when the display unit displays the second page in the first display region is within the first display region, and When the press sensor detects a press on the operation surface, the display unit is instructed to display the first page in the first display area based on the page information. Display device.
  5. 　前記ページ管理部は、前記ページ情報を記憶した後、前記タッチセンサによって検出された操作位置が前記複数の表示領域の内の第２の表示領域内であり、且つ、前記押圧センサが前記操作面への押圧を検出すると、前記ページ情報を消去する、請求項３または請求項４に記載の表示装置。 The page management unit stores the page information, and then the operation position detected by the touch sensor is in a second display area of the plurality of display areas, and the pressure sensor is in the operation surface. The display device according to claim 3 or 4, wherein the page information is erased when a pressure on the screen is detected.
  6. 　前記押圧センサは、キラル高分子によって形成された圧電フィルムを有する、請求項１から請求項５のいずれか１項に記載の表示装置。 The display device according to any one of claims 1 to 5, wherein the pressure sensor includes a piezoelectric film formed of a chiral polymer.
  7. 　前記キラル高分子は、ポリ乳酸である、請求項６に記載の表示装置。 The display device according to claim 6, wherein the chiral polymer is polylactic acid.
  8. 　前記ポリ乳酸は、Ｌ型ポリ乳酸である、請求項７に記載の表示装置。 The display device according to claim 7, wherein the polylactic acid is L-type polylactic acid.
PCT/JP2014/078692 2013-11-05 2014-10-29 Display apparatus WO2015068616A1 (en)

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