WO2017060936A1 - Capteur tactile - Google Patents

Capteur tactile Download PDF

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Publication number
WO2017060936A1
WO2017060936A1 PCT/JP2015/005089 JP2015005089W WO2017060936A1 WO 2017060936 A1 WO2017060936 A1 WO 2017060936A1 JP 2015005089 W JP2015005089 W JP 2015005089W WO 2017060936 A1 WO2017060936 A1 WO 2017060936A1
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WO
WIPO (PCT)
Prior art keywords
axis line
axis
touch sensor
generation unit
tablet image
Prior art date
Application number
PCT/JP2015/005089
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English (en)
Japanese (ja)
Inventor
研二 田原
Original Assignee
ニューコムテクノ株式会社
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 ニューコムテクノ株式会社 filed Critical ニューコムテクノ株式会社
Priority to JP2017544067A priority Critical patent/JPWO2017060936A1/ja
Priority to PCT/JP2015/005089 priority patent/WO2017060936A1/fr
Publication of WO2017060936A1 publication Critical patent/WO2017060936A1/fr

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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
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/046—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by electromagnetic means

Definitions

  • the present invention relates to a touch sensor, and in particular, intends to propose a touch sensor that is easy to touch and does not deteriorate display quality.
  • an X-axis line body and a Y-axis line body are provided along the display surface as a touch sensor for detecting the position specified by the user on the tablet display surface, and the user uses a pen-type position specifying tool.
  • a device having designated position detecting means for specifying a position on an XY axis by touching and detecting the touch position using an electromagnetic coupling method has been proposed (see Patent Documents 1 and 2).
  • the touch sensor in a state where a display image from a tablet display information generating means such as a liquid crystal display plate is displayed on the tablet display surface, the touch sensor includes an opaque material so as to be superimposed on the display image. Since it is necessary to dispose the member, there is a problem that the touch sensor member is visually recognized in the display of the display image or the display quality is deteriorated due to the shadow or the like.
  • the present invention has been made in consideration of the above points, and intends to realize a touch sensor configuration that is easy for the user to use by devising an arrangement relationship with the tablet display information generating means.
  • opaque X-axis line bodies XA1 to XAK and Y-axis line bodies are formed on an opaque sheet base material so as to overlap the tablet image with respect to the tablet image information generating unit 31 that generates a tablet image.
  • Coil plate sections 21 and 22 having YA1 to YAL are provided, and the user sees the XY coordinates formed by the X axis line bodies XA1 to XAK and the Y axis line bodies YA1 to YAL from the operation face material 52 side to the lower side.
  • the touch sensor outputs a touch detection signal representing the designated position.
  • the X-axis line bodies XA1 to XAK and the Y-axis line bodies YA1 to YAL are transparent sheet base materials 21 of the coil plate portions 21 and 22, respectively. Is arranged on the hard structures distinguish the shadow of each line member when viewed from the operating surface material 52 side by the blind structure on 22A.
  • the X-axis line body and the Y-axis line body are configured in a blind structure, so that the user can make an opaque X-axis line.
  • the shadow of the body and the Y-axis linear body can be made difficult to distinguish, so that the user can realize a touch sensor that can perform a touch operation without paying special attention to the shadow of the opaque wire rod.
  • FIG. 6 is a schematic cross-sectional view showing a detailed configuration of a backlight light source plate member 46 in FIG. 5. It is a rough-line perspective view which shows the detailed structure of the liquid-crystal drive board material 42 of FIG. FIG.
  • FIG. 6 is a schematic perspective view showing the relationship between the liquid crystal drive plate material 42 and the coil plate material 47 of FIG. 5. It is a rough-line side view which shows the touch sensor 1W1 of 2nd Embodiment. It is a rough-line perspective view which shows the detailed structure of the coil board
  • FIG. 24 It is a basic diagram which shows the structure of the hybrid board
  • FIG. 24 is a chart for explaining the operation of an X-axis loop coil portion 21G in FIG. 23.
  • FIG. FIG. 24 is a chart for explaining a Y-axis loop coil portion 22G of FIG. 23.
  • FIG. It is an approximate line figure used for explanation of electromagnetic induction detection operation. It is an approximate line figure used for explanation of electrostatic capacity detection operation. It is an approximate line side view showing touch sensor 1W9 of the 2nd modification.
  • FIG. 24 is a schematic plan view showing another embodiment of the hybrid plate material 53 of FIG. 23.
  • reference numeral 1 denotes a touch sensor according to the first embodiment.
  • a user can specify a touch position using a pen-type position specifying tool 3. Has been made.
  • the information processing apparatus 2 is designated by the user at the designated position detection unit 14 including the touch sensor 1 by the central processing unit 12 exchanging the designated input information S1 with the touch sensor 1.
  • the designated position detection signal S2 representing the position on the XY display surface 1A on the touch sensor 1 is output from the designated position detection control unit 16 to the central processing unit 12 so that the central processing unit 12 executes processing of the corresponding information. Has been made.
  • the touch sensor 1 has an X-axis loop coil plate portion 21 and a Y-axis loop coil plate portion 22 disposed so as to overlap the XY display surface 1A as a whole.
  • a drive signal input unit that controls the Y-axis loop coil plate unit 22 by a specified position control signal S3 from the specified position detection control unit 16 23, the input control of the designated position signal in the Y-axis direction on the XY display surface 1A on the touch sensor 1 is performed.
  • the designated position detection in the X-axis direction is performed by controlling the X-axis loop coil plate part 21 using the position detection signal output unit 24 controlled by the control signal S4 from the designated position detection control unit 16.
  • the output of the signal S6 is controlled.
  • the X-axis loop coil plate unit 21 includes a plurality of N (for example, 32) X-axis loop coils X1 in the X-axis direction (lateral direction in FIG. 2) , X2... XN are sequentially arranged so as to be parallel to each other while extending vertically in the Y-axis direction.
  • Each of the X-axis loop coils X1, X2,... XN has a configuration in which a linear conductive wire is wound once so as to form a vertically long rectangular shape in the Y-axis direction.
  • the center positions of X1, X2,... XN in the X-axis direction can specify N coordinate positions at equal intervals in the X-axis direction on the XY display surface 1A.
  • the X-axis loop coils X1, X2,... XN are also called X-axis linear bodies.
  • the X-axis loop coil plate portion 21 is opaque, which extends parallel to each other in the Y-axis direction on a sheet base material 21A made of a transparent synthetic resin material having a rectangular shape.
  • a plurality of K X-axis line bodies XA1, XA2,... XAK made of thin and thin (about 10 [.mu.m) conductive wires are sequentially arranged in the X-axis direction, and X-axis line bodies XA1, XA2,.
  • X-axis line bodies XA1, XA2,. Are connected in common by a common connecting wire XB, and the other end is drawn to the outside as a drawing wire XC by a drawing substrate portion 21B provided on the other end of the sheet base 21A.
  • the lead wire XC is connected to a change-over switch provided for each X-axis wire XA1, XA2,... XAK in the position detection signal output unit 24 (FIG. 2).
  • a change-over switch provided for each X-axis wire XA1, XA2,... XAK in the position detection signal output unit 24 (FIG. 2).
  • two X-axis line bodies XA1, XA2,... XAK are connected via the common connection line body XB (in accordance with the signal flow that forms the coil loop, the “going” of the signal
  • X-axis loop coils X1, X2,..., XN are sequentially formed, so that the designated position detection signal S6 is drawn in the lead-out line XC of the lead-out board portion 21B.
  • the Y-axis loop coil plate 22 has a plurality of M (for example, 20) Y-axis loop coils Y1, Y2,... YM in the X-axis direction. They are sequentially arranged so as to be parallel to each other while extending horizontally.
  • Each of the Y-axis loop coils Y1, Y2,... YM has a configuration in which a linear conductive wire is wound once so as to form a horizontally long rectangular shape in the X-axis direction.
  • the center positions of the coils Y1, Y2,... YM in the Y-axis direction are such that M coordinate positions can be specified at equal intervals in the Y-axis direction on the XY display surface 1A.
  • the Y-axis loop coil plate portion 22 is opaque and extends parallel to each other in the X-axis direction on a sheet base material 22A made of a transparent transparent synthetic resin material.
  • a plurality of L Y-axis line bodies YA1, YA2,... YAL made of a thin conductive wire (about 10 [ ⁇ m]) are sequentially arranged in the Y-axis direction, and Y-axis line bodies YA1, YA2,.
  • Y-axis line bodies YA1, YA2,. Are connected in common by a common connecting wire YB, and the other end is drawn to the outside as a drawing wire YC by a drawing substrate portion 22B provided on the other end side of the sheet base 22A.
  • the lead wire YC is connected to a change-over switch provided for each Y-axis wire YA1, YA2,... YAL in the drive signal input unit 23 (FIG. 2), and a pair of change-over switches among the change-over switches are sequentially selected.
  • a pair of change-over switches among the change-over switches are sequentially selected.
  • two Y-axis wire bodies YA1, YA2,... YAL are connected via the common connection wire body YB (the signal “goes in accordance with the signal flow forming the Y-axis loop coil”). ”Direction and“ return direction ”one by one), and as a result, the Y-axis loop coils Y1, Y2,... YM are sequentially formed, so that the designated position control signal S3 is respectively sent to the lead wire YC of the lead board portion 22B. To be supplied.
  • the Y-axis loop coils Y1, Y2,... YM of the Y-axis loop coil plate part 22 are given from the designated position detection control part 16 by a drive input switch provided in the drive signal input part 23 as shown in FIG.
  • the on / off control is performed at a predetermined timing by the designated position control signal S3, and the drive pulse signal is sequentially supplied, the electromagnetic field generated sequentially by the drive input signal flowing through the Y-axis loop coils Y1, Y2,.
  • a tuning signal is supplied by electromagnetic coupling to a tuning coil 3A and a tuning capacitor 3B (FIG. 2) provided in the designator 3.
  • the X-axis loop coils X1, X2,... XN of the X-axis loop coil plate 21 are taken into the position detection signal output unit 24 through position detection output switches provided so as to correspond to the position detection signal output unit 24, respectively.
  • the induced electromotive force generated in the X-axis loop coils X1, X2,... XN by the tuning current generated in the tuning coil 3A and the tuning capacitor 3B of the position specifying tool 3 as a position detection output signal S6. 24.
  • the electromagnetic coupling of the Y-axis loop coil plate part 22 -position specifying tool 3 -X-axis loop coil plate part 21 to the position specified by the pen touch operation by the position specifying tool 3 on the XY display surface 1A of the touch sensor 1 is performed. It can be detected as touch information representing a touch operation position by an operation.
  • the touch sensor 1 includes a backlight generation unit on the lower side of the tablet image information generation unit 31 that is a generation source for generating a tablet image. 32 and the image information output unit 33 is stacked on the upper side.
  • the tablet image information generating unit 31 is provided with a liquid crystal plate 41 in which a liquid crystal layer 41A as a tablet image information generating main body is sandwiched between upper and lower surfaces by alignment films 41B and 41C.
  • a liquid crystal driving plate 42 is provided on the lower side of the liquid crystal plate 41 so as to be supported by the glass substrate 43, and is opposed to the liquid crystal driving plate 42 with a transparent electrode on the upper side of the liquid crystal plate 41.
  • An electrode 49 is provided, whereby the liquid crystal plate 41 generates a tablet image dot by dot by an image generation voltage applied between the liquid crystal drive plate 42 and the counter electrode 49.
  • the backlight generated by the backlight generation unit 32 is incident on the liquid crystal plate 41 through the polarizing plate 44 provided on the lower side of the glass substrate 43.
  • the backlight generation unit 32 has a configuration in which a reflection sheet 45, a backlight light source plate material 46, a coil plate material 47, and a diffusion plate 48 are sequentially laminated on the lower side of the tablet image information generation unit 31. Is reflected by the reflection sheet 45, passes through the coil plate material 47, and then enters the polarizing plate 44 through the diffusion plate 48, thereby having a polarization angle capable of transmitting the liquid crystal layer 41A. Is incident on the liquid crystal plate 41.
  • the backlight light source plate 46 is provided with a plurality of light emitting sources 46B and 46C made of LEDs on the outer peripheral surface of a casing 46A made of a transparent synthetic resin material, and from the light emitting sources 46B and 46C.
  • the emitted irradiation light L1 is repeatedly reflected between the reflective / transmissive layer 46D provided on the surface of the housing 46A and the reflective sheet 45 provided on the lower surface of the housing 46A, and the incident angle of the reflected light is reflected and transmitted.
  • the backlight light source plate 46 emits the light as a parallel light.
  • the transmitted light that has passed through the liquid crystal plate 41 is subjected to color image processing by the color filter 50 provided on the upper side of the transparent counter electrode 49, and then output as image information as an output of the tablet image information generating unit 31.
  • the light is emitted upward from the operation surface material 52 made of a transparent protective panel material through the polarizing plate 51 of the output unit 33.
  • the touch sensor 1 displays the tablet image information having a polarization angle suitable for the transmission characteristics of the liquid crystal layer 41 ⁇ / b> A of the liquid crystal plate material 41 on the XY display surface 1 ⁇ / b> A that is the surface of the operation surface material 52.
  • the liquid crystal drive plate 42 provided on the lower side of the liquid crystal plate 41 has each of the liquid crystal layers 41A on the plate surface of the opaque substrate 42A.
  • a transparent dot electrode 42B (made of IZO: Indium Zinc Oxide material) is provided at the XY intersection position corresponding to the dot, and the oxide semiconductor 42C provided at the XY intersection position corresponding to the dot transparent electrode 42B of each dot.
  • a driving voltage can be supplied from the gate line 42D and the source line 42E by TFT (made of TFT: Thin Film Transistor).
  • the substrate 42A forms an opaque frame 42F in which the dot transparent electrode 42B of each dot is arranged at the XY coordinate position, and an opaque conductive foil is formed on the opaque frame 42F. Is formed so as not to prevent the backlight light of each dot from passing through the dot transparent electrode 42B.
  • the XY intersection dot portion of the liquid crystal layer 41A is controlled to transmit / not transmit the backlight light supplied from the backlight generation unit 32 by the on / off operation of the oxide semiconductor 42C corresponding to the tablet image information.
  • a tablet image is displayed on the XY display surface 1A of the operation surface material 52.
  • the coil plate material 47 includes the two sheet base materials 21A and 22A described above with reference to FIGS. 3 and 4, and the X axis line bodies XA1 to XAK and the Y axis line body YA1. While maintaining a positional relationship in which YAL is orthogonal to each other, as a biaxial electrode layer (that is, an electrode layer designating an X-axis position and an electrode layer designating a Y-axis position), It is inserted between the diffuser plates 48.
  • a biaxial electrode layer that is, an electrode layer designating an X-axis position and an electrode layer designating a Y-axis position
  • the X-axis line bodies XA1 to XAK and the Y-axis line bodies YA1 to YAL are opaque conductive materials.
  • a plurality of thin wire materials made of, for example, copper material or aluminum material are sequentially arranged on each of the sheet base materials 21A and 22A in parallel to the X-axis direction and the Y-axis direction at a predetermined interval with respect to the thickness of the wire material. It has a configuration in which “border structure” electrode layers cross each other.
  • the coil plate material 47 has a position in the X-axis direction where the X-axis line bodies XA1, XA2,... Of the X-axis loop coil plate portion 21 are formed as shown in FIG.
  • the frame 42F of the drive plate 42 is positioned at a position that substantially overlaps the portion where the source line 42E is disposed, and the Y-axis line bodies YA1, YA2,... Of the Y-axis loop coil plate 22 are disposed for the gate line 42D. It has a basic arrangement relationship such that it is positioned at a position that almost overlaps the part.
  • the X-axis line body XA1 of the X-axis loop coil plate portion 21 is viewed from the user who performs a touch operation on the display surface of the operation surface material 52 in the touch sensor 1 (FIG. 5).
  • the Y-axis line bodies Y1, Y2... Of the Y-axis loop coil plate portion 22 basically overlap with the image of the frame 42F of the liquid crystal drive plate 42, so Is hidden and invisible.
  • the X-axis line bodies XA1, XA2... And the Y-axis line bodies YA1, YA2... Have such a basic arrangement relationship, but are essentially parallel to the X-axis direction and the Y-axis direction so as to have a blind structure. Therefore, even if the liquid crystal driving plate 42 is shifted from the position where it overlaps the frame body 42F and crosses the dot transparent electrode 42B, the liquid crystal driving plate material 42 is substantially at the position of the dot transparent electrode 42B based on the visual characteristics of the user. The result does not make it difficult to see the image of the displayed liquid crystal layer 41A.
  • the X-axis line bodies XA1, XA2,... And the Y-axis line bodies YA1, YA2,... are uniformly arranged in the X-axis direction and the Y-axis direction while maintaining a small interval based on the “border structure”.
  • the Y axis line of the “border structure” is electromagnetically coupled by the drive input pulse signal of the Y axis loop coil plate part 22.
  • a tuning signal is generated in the position specifying tool 3, and this causes an induced voltage to be generated in a loop coil formed by the X-axis line body of the X-axis loop coil plate portion 21, whereby the operation face material of the touch sensor 1 is obtained.
  • a designated position detection signal S ⁇ b> 2 representing a position touched on 52 can be output from the designated position detection control unit 16 to the central processing unit 12.
  • the “border structure” refers to a structure in which a plurality of linearly extending X-axis line bodies XA1 to XAK and Y-axis line bodies YA1 to YAL are uniformly arranged in the horizontal direction at the same interval.
  • the backlight including the shadow generated to block the light source light supplied from the backlight light source plate material 46 of the unit 32 is supplied to the tablet image information generating unit 31, and the X axis line body and the Y axis line body
  • the shadow generation position is basically selected so as not to cross the dot transparent electrode 42B of the liquid crystal driving plate 42 of the liquid crystal plate 41 (and hence the dot generation position of the image).
  • the X axis body and the Y axis body are arranged at a predetermined interval so as to form a blind structure. By that is a linear body distinguish difficult state of people, as a whole, can be out of the way of the visual of the user touch operation while viewing the display screen.
  • the opaque XY coordinate electrode provided for performing the pen touch operation on the tablet image information generation unit 31 side of the backlight source plate member 46 of the backlight generation unit 32 with the position specifying tool 3 visually darkens the backlight light.
  • FIG. 9 shows a touch sensor 1W1 according to the second embodiment, and the same reference numerals are given to corresponding parts to FIG.
  • the coil plate material corresponding to the coil plate material 47 in the case of FIG. 9.
  • the light source plate 46 is directly laminated on the surface 46A.
  • the X-axis body layer LX and the Y-axis body layer LY are made of an insulating layer material with respect to the remaining layers of the X-axis bodies XA1, XA2,... After removing the sheet base materials 21A and 22A in FIGS.
  • the layers of the Y-axis bodies YA1, YA2,... Are overlapped, and the two electrode material layers are separately protected by an insulating protective film, on the backlight light source plate 46 that is the lower optical member. It has the structure attached to one.
  • the touch sensor 1W1 having the above-described configuration, when the user touches the position specifying tool 3 on the operation surface material 52 of the touch sensor 1W1, the X-axis line layers LX and Y stacked on the surface 46A of the backlight light source plate 46 are used.
  • the designated position of the position designation tool 3 can be detected by the loop coil formed by the axis body layer LY.
  • the shadow generation position of the X-axis body and the Y-axis body is basically the liquid crystal drive of the liquid crystal plate 41 as described above with reference to FIG.
  • the positional relationship is selected so as not to cross the dot transparent electrode 42B (and hence the dot generation position of the image) of the plate material 42, and even when crossing, the X axis line body and the Y axis line body form a blind structure.
  • the backlight light source plate material 46 and the coil plate material 47W1 can be manufactured in advance as an integrated structure, thereby further simplifying the assembly of the touch sensor 1W1. it can.
  • FIG. 11 shows a touch sensor 1W2 according to the third embodiment. As shown in FIG. 5, parts corresponding to those in FIG. The coil plate material 47 provided between the backlight source plate material 46 and the diffusion plate 48 of the generation unit 32 is omitted, and the coil plate material 47W2 is provided on the diffusion plate 48.
  • the coil plate material 47W2 in this case has a configuration in which the Y-axis loop coil plate portion 22 (FIG. 4) is bonded to the X-axis loop coil plate portion 21 (FIG. 3), and the two layers of coil plate portions are backed up. It is affixed on the diffusion plate 48 that forms the surface member of the light generator 32.
  • the positions where the shadows of the X-axis line and the Y-axis line are generated are basically the dots of the liquid crystal drive plate 42 of the liquid crystal plate 41 as described above with reference to FIG.
  • the positional relationship is selected so as not to cross the transparent electrode 42B (and hence the dot generation position of the image), and even if the transparent electrode 42B is crossed, the X-axis line body and the Y-axis line body are predetermined to form a blind structure.
  • the touch sensor 1W2 can be assembled with a small number of parts.
  • FIG. 12 shows a touch sensor 1W3 according to a fourth embodiment.
  • the coil plate material 47W2 is attached to the uppermost layer of the backlight generation unit 32. Instead, the coil plate material 47W3 is provided so as to be sandwiched between the backlight generation unit 32 and the tablet image information generation unit 31. .
  • the shadow generation positions of the X-axis line body and the Y-axis line body are basically set as described above with reference to FIG.
  • the positional relationship is selected so as not to cross the dot transparent electrode 42B (and hence the dot generation position of the image) of the liquid crystal driving plate 42, and even if it crosses, the X-axis line body and the Y-axis line body are interleaved structures.
  • adjustment of the position of the coil plate material 47W3 can be easily performed independently by adjusting the position of the coil plate material 47W3 between the tablet image information generation unit 31 and the backlight generation unit 32.
  • FIG. 13 shows a touch sensor 1W4 according to a fifth embodiment, and the same reference numerals are given to the corresponding parts to FIG.
  • the touch sensor 1W4 in this case omits the coil plate material 47W3 provided between the backlight generation unit 32 and the tablet image information generation unit 31 in FIG. 12 and uses the coil plate material 47W4 as the lowermost layer member of the tablet image information generation unit 31. It has the structure affixed on the upper surface of the polarizing plate 44 which comprises.
  • the coil plate material 47W4 is provided with the same reference numerals as those in FIG. 10 and the insulating sheet 47W4A is sandwiched between the X-axis line layers LX of the X-axis lines XA1 to XAK, as shown in FIG.
  • the Y-axis line bodies LY of the Y-axis line bodies YA1 to YAL are provided, and the two linear body layers are formed directly on the surface 44A of the polarizing plate 44.
  • the positions where the shadows of the X-axis line and the Y-axis line are generated are basically the dots of the liquid crystal drive plate 42 of the liquid crystal plate 41 as described above with reference to FIG.
  • the positional relationship is selected so as not to cross the transparent electrode 42B (and hence the dot generation position of the image), and even if the transparent electrode 42B is crossed, the X-axis line body and the Y-axis line body are predetermined to form a blind structure.
  • the touch sensor 1W4 can be easily assembled with a small number of parts by integrally forming the upper surface 44A of the polarizing plate 44 by superimposing two layers of the X-axis line layer LX and the Y-axis line layer LY.
  • the touch sensor 1W4 can be realized.
  • FIG. 15 shows a touch sensor 1W5 according to a sixth embodiment. As shown in FIG. 15, parts corresponding to those in FIG. The coil plate material 47W5 is sandwiched between the polarizing plate 44 in the lowermost layer of the portion 31 and the glass substrate 43 constituting the upper layer thereof.
  • the coil plate material 47W5 includes the X-axis loop coil plate portion 21 in which the X-axis linear bodies XA1 to XAK are formed on the sheet base material 21A, and the sheet base material 22A.
  • the Y-axis loop coil plate part 22 formed on the Y-axis line bodies YA1 to YAL is superposed on each other.
  • the positions where the shadows of the X-axis line and the Y-axis line are generated are basically the liquid crystal plate as described above with reference to FIG. 41 is selected so that it does not cross the dot transparent electrode 42B of the liquid crystal drive plate 42 (and hence the dot generation position of the image), and even if it crosses, the X-axis line and Y-axis line are By arranging at a predetermined interval so as to form a blind structure, it is difficult for the user's eyes to distinguish individual line bodies. Without darkening, it is possible to avoid disturbing the visual sense of the user who performs a touch operation while looking at the display screen.
  • FIG. 16 shows a touch sensor 1W6 according to the seventh embodiment.
  • the coil plate material 47W5 is formed on the surface of the lowermost polarizing plate 44 of the tablet image information generating unit 31, but instead of this, in the case of FIG. 16, the liquid crystal drive directly under the liquid crystal plate material 41 of the tablet image information generating unit 31 is used.
  • a coil plate material 47W6 as shown in FIG. 17 is formed on the surface 42A of the plate material.
  • each dot transparent electrode 42B has dots that transmit backlight light and dots that do not transmit light by tablet image processing. Is supplied to the Y-axis line layer LY and the X-axis line layer LX of the coil plate material 47W6.
  • the Y-axis line bodies YA1, YA2,... Of the Y-axis line layer LY and the X-axis line bodies XA1, XA2,... Of the X-axis line layer LX are opaque. Since the gate line 42D and the source line 42E are provided so as to overlap with each other, the oxide semiconductor 42C can be converted into the dot transparent electrode by the tablet image data without blocking the backlight transmitted through the dot transparent electrode 42B from the lower side. By controlling 42B, the tablet information generated in the liquid crystal layer 41A is sent out based on the backlight.
  • the X-axis line bodies XA1 to XAK and the Y-axis line bodies YA1 to YAL are insulated on the liquid crystal driving plate 42 directly under the liquid crystal plate 41 that generates the tablet image in the tablet image information generating unit 31. Since the 47W6A is formed directly on the surface 42A of the liquid crystal driving plate 42, the coil plate 47W6 used for touch operation is formed integrally with the liquid crystal driving plate 42 when the touch sensor 1W6 is assembled. Parts can be simplified.
  • the touch sensor 1W6 touches the operation surface material 52, it is difficult to distinguish the individual grid-like line bodies of the coil plate material 47W6, so that the touch operation is easy to perform and the backlight generation unit provided on the lower side
  • the touch sensor 1W6 that does not cause the backlight light supplied from 32 to be darkened can be realized.
  • FIG. 19 shows a touch sensor 1W7 according to an eighth embodiment, in which the parts corresponding to those in FIG.
  • the X-axis body layer LX and the Y-axis body layer LY are laminated in two layers on the surface of the liquid crystal driving plate material 42 immediately below the liquid crystal plate material 41 of the tablet image information generating unit 31 via the insulating sheet material 47W6A.
  • the X-axis line layer LX and the Y-axis line layer LY are divided into two, and the counter electrode as shown in FIG.
  • the coil plate material 47W72 made of the X-axis body layer LX is directly formed on the lower side surface 49A of 49, and the coil plate material 47W71 made of the Y-axis line body layer LY is directly formed on the upper side surface 42A of the liquid crystal driving plate material 42 as shown in FIG. To do.
  • the coil plate materials 47W71 and 47W72 are configured in the tablet image information generating unit 31 when the touch sensor 1W7 is assembled, but the number of components of the touch sensor 1W7 is the coil plate material 47W71. And 47W72 can be assembled with the same number of parts as before insertion, and thus the touch sensor 1W7 that can be easily assembled can be obtained accordingly.
  • the X axis line body layer LX and the Y axis line body layer LY constituting the coil plate materials 47W72 and 47W71 are formed in a thin interdigital shape.
  • the touch operation is easy to perform, and the backlight light supplied from the backlight generation unit 32 is darkened or the tablet image sent from the liquid crystal layer 41A is difficult to see.
  • a touch sensor 1W7 that does not become necessary can be realized.
  • FIG. 22 shows a touch sensor 1W8 of a first modification example of electromagnetic induction / capacitance type. The same reference numerals are given to the portions corresponding to those in FIG.
  • the coil plate material 47W5 is interposed on the lower side of the liquid crystal plate 41 in the tablet image information generating unit 31, but in the case of FIG. 22, the coil plate material 47W5 of FIG.
  • a “hybrid touch sensor” is configured as a whole.
  • the “hybrid touch sensor” has a function that allows the user to select either an operation mode in which an electromagnetic induction type designated position detection operation is performed or an operation mode in which a capacitance type designated position detection operation is performed. .
  • the hybrid touch sensor 1W8 uses the hybrid plate 53 shown in FIG. 23 as a main element of the designated position detection unit 14.
  • the position detection signal output unit 24 is provided with an X-axis line connection switching unit 61, and the drive signal input unit 23 is provided with a Y-axis line connection switching unit 62.
  • the X-axis line connection switching unit 61 places X-axis loops LX1, LX2, LX3, LX4, and LX5 on the hybrid plate material 53 sequentially at a predetermined timing with respect to the X-axis loop coil wires X1 to XN.
  • the Y-axis connection switching unit 62 synchronizes with this, as shown in FIG. 25, the Y-axis loops LY1, LY2, LY3, and LY4 for the Y-axis loop coil wires Y1 to YM.
  • a position detection signal designated by the position designation tool 3 on the XY display surface 1A is obtained from the position detection signal output unit 24.
  • the “go” signal “a” and the “return” signal “b” flow through the X axis and Y axis constituting the X axis loop coils LX1 to LX5 and the Y axis loop coils LY1 to LY4.
  • the electromagnetic induction detecting operation can be performed by the user performing a touch operation on the XY display surface 1A with the position specifying tool 3.
  • the X-axis loop LX1 ( 24) when the “going” signal a flows through the X-axis line bodies X1 and X2 and the “return” signal b flows through the X-axis line bodies X6 and X8, as shown by the thick lines in FIG. It can be detected by the hybrid plate material 53 that the position specifying tool 3 has touch-designated the XY coordinate position surrounded by the linear body.
  • b is not provided, which means that the X-axis connection switching unit 61 and the Y-axis line switching unit 62 are not connected to these X-axis line bodies X3 to X19 and Y-axis line bodies Y3 to Y15. Indicates that it is disconnected.
  • a detection operation can be performed in which an electrostatic coupling detection signal is obtained from the XY coordinate position where the electrostatic field is changed.
  • the electrode dielectric detection operation and the capacitance detection can be performed on the single hybrid plate member 53 without externally switching the X-axis loop coil and the Y-axis loop coil.
  • a hybrid touch sensor capable of performing operations can be realized.
  • the touch sensor 1W8 of FIGS. 22 to 27 the touch sensor is used for both the case where the hybrid plate 53 is pen-touch driven by the electromagnetic induction method (FIG. 26) and the case where the finger touch drive is performed by the capacitive method (FIG. 27).
  • the 1W8 can obtain a detection output representing the touch position by touching the operation surface material 52 with the position designation tool 3 or the user's fingertip 65 by the user.
  • the hybrid plate material 53 is provided on the uppermost layer of the tablet image information generating unit 31 close to the operation surface material 52, so that when the user's fingertip 65 performs a finger touch operation on the operation surface of the touch sensor 1W8, XY. A sufficient change can be imparted to the electrostatic field of the wire layer.
  • FIG. 28 shows a touch sensor 1W9 according to the second modification, and the position of the hybrid plate member 53 of FIG. Instead of this, the coil plate material for pen touch detection 54 and the electrode plate material 55 for finger touch detection are provided so as to be sequentially stacked.
  • the coil plate material 54 for pen touch detection performs an electromagnetic induction type pen touch detection operation on the transparent base film 54 ⁇ / b> A in the same manner as described above for the hybrid plate material 53 of FIG. 23.
  • an X-axis line layer 54C made of opaque X-axis line bodies X1 to XN and a Y-axis line body layer 54D made of opaque Y-axis line bodies Y1 to YM with a transparent insulating material sheet 54B interposed therebetween.
  • the finger touch detection electrode plate 55 is placed on a transparent base film 55A on the transparent base film 55A by the user using the fingertip 65 with a capacitive finger as described above for the hybrid plate 53 of FIG.
  • An X-axis line layer 55C composed of opaque X-axis line bodies X1 to XN and a Y-axis line body composed of opaque Y-axis line bodies Y1 to YM with a transparent insulating material sheet 55B interposed therebetween so as to perform a touch detection operation.
  • the layer 55D is provided, and when the user performs a finger touch operation on the operation surface material 52, the specified coordinate (XN, YM) is detected.
  • the touch sensor 1W9 when the user performs a pen touch operation on the operation surface material 52, the touch sensor 1W9 has the X axis formed on the surface side of the color filter 50 in which the pen touch detection coil plate material 54 is in the electromagnetic induction detection operation mode.
  • the touch operation position can be detected by performing electromagnetic induction detection operation on the Y-axis body layers 54C and 54D.
  • the finger touch detection electrode plate material 55 is in the capacitance detection mode, and the detection position where the user has performed the touch operation can be detected.
  • the coil plate material 54 for pen touch detection and the electrode plate material 55 for finger touch detection have a configuration in which opaque X-axis line bodies X1 to XN and Y-axis line bodies Y1 to YM are formed on transparent base films 54A and 55A, respectively. Therefore, the user can visually confirm the tablet image sent from the color filter 50 of the tablet image information generating unit 31 from the operation surface material 52.
  • the X-axis line bodies X1 to XN and the Y-axis line bodies Y1 to YM basically overlap with the frame body member that holds the dot transparent electrode 42B of the liquid crystal drive plate 42, as described above with reference to FIG.
  • the user is prevented from seeing the tablet image sent by the dot transparent electrode 42B.
  • the electrode touch detection electrode plate 55 is provided in the image information output unit 33 close to the operation surface material 52, the user's fingertip 65 performs a finger touch operation on the operation surface material 52 of the touch sensor 1W9. A sufficient change can be imparted to the electrostatic field of the XY wire layer.
  • the user can When a touch operation is performed on the operation surface material 52 of the touch sensor 1W9, it is difficult to see each grid-like line body, so that the touch operation is easy to perform, and the tablet image generated by the liquid crystal plate material 41 provided on the lower side
  • the touch sensor 1W9 that does not cause light blocking can be realized.
  • the user can perform a pen touch by a simple assembly operation in which the pen touch detection coil plate material 54 and the finger touch detection electrode plate material 55 are inserted into the surface portion of the optical member for generating a tablet image. It is possible to realize a touch sensor 1W9 having a simple configuration that can perform an operation and a finger touch operation as necessary.
  • FIG. 31 shows a touch sensor 1W10 of a third modified example, and the same reference numerals are given to the corresponding parts to FIG. 22, and the hybrid plate 53 in the case of FIG. Is omitted, and the hybrid plate material 56 is provided immediately below the operation surface material 52 of the image information output unit 33.
  • FIG. 31 while taking advantage of the tablet image generation operation of the tablet image information generation unit 31 and the backlight supply operation from the backlight generation unit 32 as they are, FIG.
  • the hybrid operation similar to that of the hybrid plate material 53 described above with reference to FIG. 24 is performed, so that the user can selectively perform the electromagnetic induction touch operation detection operation and the capacitive touch operation detection with respect to the touch sensor 1W10.
  • Such a function can be realized by a simple configuration in which the hybrid plate material 56 is sandwiched between the polarizing plate 51 and the operation surface material 52.
  • the X-axis line bodies X1 to XN and the Y-axis line bodies Y1 to YM used in the electromagnetic induction type detection operation (FIG. 26) and the capacitance type detection operation (FIG. 27) are interdigital opaque thin lines. Since the body is configured to overlap the frame of the liquid crystal drive plate 42 (FIG. 18), when the user performs a touch operation on the operation surface material 52 of the touch sensor 1W10 using the position specifying tool 3, the coil plate The touch sensor 1W10 can be realized so that it is difficult to visually check the grid-like linear body, and the touch operation is easy and the tablet image light generated by the liquid crystal plate 41 provided on the lower side is not blocked. .
  • the inner axis line body XA2, excluding the outer X-axis line bodies XA1 and XAK, XA3... XA (K-1) is a plurality of, for example, three axial bodies (XA21, XA22, XA23), (XA31, XA32, XA33)... (XA (K-1) 1, XA (K-1) 2, XA (K-1) 3).
  • the Y-axis loop coil plate portion 22 shown in FIG. 33 has three inner Y-axis line bodies YA2, YA3... YA (L-1) except for the outer Y-axis line bodies YA1 and YAL connected in parallel.
  • the resistance value is reduced by the amount connected in parallel.
  • the three axial bodies constituting the X-axis linear bodies XA1 and XAK and XA2, XA3... XA (K-1) respectively have a blind structure similar to that described above with reference to FIG.
  • the three axes constituting the YAL array YA2, YA3... YAL (L-1) each have a blind structure as described above with reference to FIG.
  • the three wire bodies connected in parallel of the X-axis loop coil plate portion 21 and the Y-axis loop coil plate portion 22 are substantially thicker as resistors
  • the line that can be seen from the operation surface, which is the operation surface, is a thin line of interdigital structure that extends in parallel, making it difficult to distinguish. As a result, tablets that are projected on the operation surface without worrying about the presence of the line A touch operation on the image can be performed.
  • one is set in the “going” direction of the signal and one in the “returning” direction of the signal in the case of FIGS. 3 and 4 according to the flow of the signal forming the coil loop.
  • three are set in the “going” direction and three are set in the “returning” direction.
  • the set number is not limited to the above-described embodiment or example, and an arbitrary number can be set (for example, 4 can be set in the “bound” direction and 3 in the “return” direction). However, the same effects as those described above for the above-described embodiments and examples can be obtained.
  • Such an arbitrary number of switching operations can be realized by using a multi-contact changeover switch circuit element generally called a “selector circuit” or a “decoder”.
  • the electrostatic capacitance CZ on the hybrid plate 53 is uniformly distributed, and the electromagnetic induction effect is generated by the wire portion where the other X-axis loop coils and Y-axis loop coils connected to the common connection wires XB and YB intersect each other. Has been made to get.
  • the present invention can be used as a touch sensor of a tablet image processing apparatus.
  • Touch sensor 47W1, 47W2, 47W3, 47W4, 47W5, 47W6, 47W71, 47W72.
  • Coil plate material 53 ... Hybrid plate material, 54 ... Coil plate material for pen touch detection, 55 ... Electrode plate material for finger touch detection, 56 ... Hybrid plate material

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Position Input By Displaying (AREA)

Abstract

La présente invention concerne un capteur tactile qui permet une utilisation tactile facile. Dans la présente invention, des fils d'axe X (XA1-XAK) et des fils d'axe Y (YA1-YAL) sont placés dans une structure de type maillage de telle sorte que lorsqu'un utilisateur doit indiquer une position de coordonnées à indiquer sur une image de tablette tout en regardant à travers un matériau de surface opérationnelle (52), l'utilisateur discerne à peine les ombres opaques des fils d'axe X (XA1-XAK) et des fils d'axe Y (YA1-YAL), ce qui permet de réaliser un capteur tactile qui permet à l'utilisateur d'effectuer une opération tactile sans être particulièrement gêné par les ombres opaques du matériau des fils.
PCT/JP2015/005089 2015-10-06 2015-10-06 Capteur tactile WO2017060936A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2017544067A JPWO2017060936A1 (ja) 2015-10-06 2015-10-06 タッチセンサ
PCT/JP2015/005089 WO2017060936A1 (fr) 2015-10-06 2015-10-06 Capteur tactile

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PCT/JP2015/005089 WO2017060936A1 (fr) 2015-10-06 2015-10-06 Capteur tactile

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013020560A (ja) * 2011-07-14 2013-01-31 Wacom Co Ltd 位置検出センサおよび位置検出装置
JP5218402B2 (ja) * 2007-05-18 2013-06-26 株式会社セガ デジタイザ機能付液晶表示装置、情報処理用電子機器及びゲーム装置
JP2015088021A (ja) * 2013-10-31 2015-05-07 株式会社東芝 電子機器及び座標補正方法
JP2015122057A (ja) * 2013-12-20 2015-07-02 エルジー ディスプレイ カンパニー リミテッド タッチスクリーンパネル一体型表示装置及びその駆動方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5218402B2 (ja) * 2007-05-18 2013-06-26 株式会社セガ デジタイザ機能付液晶表示装置、情報処理用電子機器及びゲーム装置
JP2013020560A (ja) * 2011-07-14 2013-01-31 Wacom Co Ltd 位置検出センサおよび位置検出装置
JP2015088021A (ja) * 2013-10-31 2015-05-07 株式会社東芝 電子機器及び座標補正方法
JP2015122057A (ja) * 2013-12-20 2015-07-02 エルジー ディスプレイ カンパニー リミテッド タッチスクリーンパネル一体型表示装置及びその駆動方法

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