WO2019045172A1 - Panneau tactile - Google Patents

Panneau tactile Download PDF

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Publication number
WO2019045172A1
WO2019045172A1 PCT/KR2017/011783 KR2017011783W WO2019045172A1 WO 2019045172 A1 WO2019045172 A1 WO 2019045172A1 KR 2017011783 W KR2017011783 W KR 2017011783W WO 2019045172 A1 WO2019045172 A1 WO 2019045172A1
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WO
WIPO (PCT)
Prior art keywords
electrode
electrodes
sub
touch panel
bridge
Prior art date
Application number
PCT/KR2017/011783
Other languages
English (en)
Korean (ko)
Inventor
이민재
박정훈
안대환
이승재
Original Assignee
희성전자 주식회사
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
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Application filed by 희성전자 주식회사 filed Critical 희성전자 주식회사
Priority to CN201780001868.5A priority Critical patent/CN109729728A/zh
Publication of WO2019045172A1 publication Critical patent/WO2019045172A1/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
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0448—Details of the electrode shape, e.g. for enhancing the detection of touches, for generating specific electric field shapes, for enhancing display quality
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0446—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • 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
    • G06F2203/04111—Cross over in capacitive digitiser, i.e. details of structures for connecting electrodes of the sensing pattern where the connections cross each other, e.g. bridge structures comprising an insulating layer, or vias through substrate

Definitions

  • the present invention relates to a touch panel, and more particularly, to a touch panel having improved touch sensitivity and linearity.
  • a touch screen display is a type of touch screen display in which a person's hand or object touches a specific location on the display without using a separate input device such as a keyboard, , A screen that can receive input directly from the screen.
  • the touch screen display includes a touch panel that recognizes a touch.
  • the touch screen display can be classified into a resistive type, a capacitive type, an ultrasonic type, and an infrared type depending on the operation method of the touch panel.
  • the touch panel of Korean Patent Application No. 10-2010-0106741 has a problem that the capacitance causing the noise between the display EMI and the receiving electrode is formed when the touch input is applied, and the signal to noise ratio (SNR) is lowered .
  • SNR signal to noise ratio
  • a stylus pen when used, the linearity of a conductive rod of 1 mm to 2 mm is not ensured, and an active stylus pen that generates an electric field itself must be used. Accordingly, it is necessary to develop a touch panel capable of using a passive stylus pen, rather than an expensive active stylus pen, while improving the sensitivity and linearity characteristics without deteriorating the SNR.
  • An object of the present invention is to provide a touch panel capable of applying a passive stylus pen having a small diameter and a low price by having excellent linearity and sensitivity.
  • a touch panel for an object of the present invention includes a plurality of first electrode parts extending in a first direction and arranged to be spaced apart from each other in a second direction intersecting the first direction; And electrode patterns extending in the second direction and arranged in the first direction, wherein at least two adjacent electrode patterns are connected by a pair of outer electrodes disposed at both ends to form a single closed curve structure And a plurality of second electrode portions.
  • any one of the first electrode portion and the second electrode portion may be formed by arranging the sub-electrodes spaced apart from each other in the extending direction of the electrode portion and the chain patterns formed by the bridge electrodes connecting the sub- .
  • the electrode patterns of the second electrode portion may be chain patterns.
  • each of the first electrode units may include a plurality of first sub-electrodes spaced apart from each other in the first direction, and a connection electrode disposed between the first sub-electrodes and connecting adjacent first sub-
  • each of the second electrode units is formed by a plurality of second sub-electrodes spaced apart from each other in the second direction and two of the chain patterns formed by the bridge electrodes are connected by outer electrodes to form a single closed curve structure have.
  • the center point of the unit cell including the first sub-electrode coincides with the center point of the first sub-electrode included in the unit cell
  • the length of the unit cell in the horizontal direction corresponds to the distance between the two first sub-
  • the length of the unit cell in the longitudinal direction has the same value as the distance between the center points of each of the two second sub-electrodes adjacent to each other
  • the width of the two sub-electrodes in the first direction is within a range of 8% to 13% of the length of the unit cells in the horizontal direction
  • the first sub-electrodes, the second sub-electrodes, and the connection electrodes are formed as a single layer on the base substrate, and the first sub-electrodes, the second sub- An insulating layer may be formed on the insulating layer, and bridge electrodes may be disposed on the insulating layer.
  • the bridge electrodes are disposed on a base substrate, an insulating layer is formed on the base substrate on which the bridge electrodes are formed, and the first sub-electrodes, the second sub- The connection electrodes may be arranged in a single layer.
  • the touch panel may further include a dummy pattern arranged in an island shape in a spaced-apart space between the first electrode portion and the second electrode portion.
  • the first electrode portion has a chain pattern formed by alternately arranging the sub electrode and the bridge electrode in the first direction, and the electrode pattern of the second electrode portion has a linear structure and is integrally connected with the outer electrode Lt; / RTI >
  • the bridge electrodes are disposed between two sub-electrodes spaced apart from each other, so that the two ends of the bridge electrode overlap each other.
  • the bridge electrode may be of a line type extending continuously along the extending direction of the electrode portion including the bridge electrode.
  • a touch panel for one purpose of the present invention includes a plurality of first sub-electrodes spaced apart from each other in a first direction and connection electrodes disposed between the first sub-electrodes and connecting adjacent first sub-electrodes A plurality of first electrode units configured; And a plurality of second sub-electrodes spaced apart from each other in the second direction and a plurality of bridge electrodes formed by bridging electrodes connecting neighboring second sub-electrodes, Electrode portions, and the first sub-electrodes arranged in a line in the second direction are disposed inside a single closed curve formed by the second electrode portion.
  • the bridge electrodes in each of the second electrode units may be provided such that a plurality of bridge electrodes are disposed between the two second sub-electrodes, and both ends of the bridge electrode are overlapped with two different sub-electrodes.
  • the bridge electrode in each of the second electrode units may have a line shape extending continuously in the second direction to connect the plurality of second sub-electrodes.
  • the bridge electrode in each of the second electrode units may have a single closed curve type continuously extending along the arrangement of the second sub-electrodes included in the second electrode unit and connecting the sub-electrodes.
  • touch panel of the present invention it is possible to provide a touch panel capable of applying a passive stylus pen having a small diameter and a low price by having excellent linearity and sensitivity.
  • FIG. 1 is a plan view for explaining a touch panel according to an embodiment of the present invention.
  • FIG. 2 is an enlarged plan view of a portion A in Fig.
  • FIG. 3 is a cross-sectional view taken along line I-I 'of FIG.
  • FIG. 4 is a cross-sectional view illustrating a touch panel according to another embodiment of the present invention.
  • FIG. 5 is a partial plan view illustrating a touch panel according to another embodiment of the present invention.
  • FIG. 6 is a view for explaining a touch panel according to another embodiment of the present invention.
  • FIG. 7 is a cross-sectional view taken along line II-II 'of FIG.
  • FIG. 8 is a partial plan view illustrating a touch panel according to another embodiment of the present invention.
  • FIG. 9 is a view illustrating a unit cell for explaining a touch panel according to another embodiment of the present invention.
  • FIG. 10 is a plan view for explaining a touch panel according to another embodiment of the present invention.
  • FIG. 11 is a cross-sectional view taken along line III-III 'of FIG.
  • FIG. 1 is a plan view for explaining a touch panel according to an embodiment of the present invention
  • FIG. 2 is an enlarged plan view of a portion A in FIG.
  • a touch panel 101 includes a base substrate 110, a first electrode unit XE extending in a first direction D1, And a second electrode unit YE extending in a second direction D2 intersecting with the first electrode unit D2. And a driving control unit DP connected to the first electrode unit XE and the second electrode unit YE.
  • the driving control unit DP is connected to each of the first electrode unit XE and the second electrode unit YE through a connection wiring (not shown).
  • the first electrode unit XE may be a transmitting electrode unit
  • the second electrode unit YE may be a receiving electrode unit.
  • a touch input is applied to the touch panel 101, a change in the voltage of the sensor node can be sensed by the second electrode unit YE, and the first electrode unit XE can sense the first electrode unit XE
  • the touch input can be sensed by using the driving pulse supplied through the driving pulse.
  • the drive pulse can be supplied from a separate drive circuit.
  • the first electrode unit XE includes x first sub-electrodes arranged in a row along one row in the first direction D1 (where x is a natural number of 2 or more)
  • the first sub-electrodes adjacent to each other are connected to each other via the connection electrode CE.
  • a plurality of first electrode units XE arranged in a row in one row and having a structure in which the first sub-electrodes are connected by the connecting electrode CE are arranged in the second direction D2.
  • the first sub-electrodes may have a bar shape having a short side extending in the first direction D1 and a long side extending in the second direction D2.
  • the second electrode unit YE includes y sub-electrodes arranged in a row along one row in the second direction D2 (where y is a natural number of 2 or more)
  • the second sub-electrodes adjacent to each other are connected to each other through the bridge electrode BRE.
  • a plurality of second electrode units YE arranged in a row in one row and having a structure in which the second sub-electrodes are connected by the bridge electrode BRE are arranged in the first direction D1.
  • the bridge electrode BRE has a structure extending in the second direction D2, which is the same as the second sub-electrodes, in order to connect the neighboring second sub-electrodes.
  • the bridge electrodes BRE may be arranged between the second sub-electrodes adjacent to each other along the second direction D2, and may be arranged discontinuously in the second direction D2 as a whole .
  • the second electrode portion YE may have a structure in which two second sub-electrodes disposed adjacent to each other at both ends of the second direction D2 are connected to each other via the outer electrode CBE .
  • the second electrode unit YE has a structure in which the second sub-electrodes and the bridge electrode BRE are alternately repeated to form a chain pattern extending in the second direction D2, And the two adjacent electrode patterns become a pair and the second sub-electrodes disposed at both ends of the second direction D2 in the two chain patterns are connected to each other through the outer electrode CBE.
  • the second electrode unit YE has a pair of outer electrodes CBE disposed at both ends of the pair of electrode patterns, in which the chain pattern formed by the second sub-electrodes and the bridge electrode BRE is an electrode pattern, It can have a single closed curve structure to connect.
  • first sub-electrodes arranged in the same column are arranged in the same direction along the second direction D2.
  • a bridge electrode BRE is disposed at a portion where the first electrode unit XE and the second electrode unit YE intersect and at a portion where the first electrode unit XE and the second electrode unit YE intersect,
  • the one electrode portion XE and the second electrode portion YE are insulated by the insulating layer 121 (see FIG. 3).
  • the cross-sectional structure of the touch panel 101 of Figs. 1 and 2 and the components of the respective components will be described later with reference to Fig.
  • FIG. 2 is a portion including one unit cell in the touch panel of FIG. 1.
  • the three first sub-electrodes arranged in the rows a-1, a and a + 1 will be described as "Xa-1, Xa, Xa + 1".
  • a represents a natural number of 2 or more and x or less.
  • the two sub-electrodes adjacent to each other in one column included in one of the second electrode units YE will be described as " Yb, Yb + 1 ".
  • the unit cell of the present invention includes a first sub-electrode Xa, which is one of the first sub-electrodes,
  • the length H in the first direction D1 of the unit cell is twice as large as the distance between the center points of the two first sub-electrodes adjacent to each other in agreement with the center point of the electrode Xa,
  • the length V of the two directions D2 is defined as a region having the same value as the distance between the center points of the two second sub-electrodes adjacent to each other.
  • the length H of the unit cell in the first direction D1 is equal to the distance between the center points of each of the a-1th first sub-electrode Xa-1 and the a + 1th sub-electrode Xa + 1 Have the same value.
  • the interval W2 between the a-th first sub-electrode Xa and the b-th second sub-electrode Yb arranged in the first direction D1 is set to be equal to the interval W2 between the a- Of the length H in the first direction D1 of the first region D2.
  • the closest distance d between the (b + 1) th second sub-electrode Yb + 1 and the connecting electrode CE may have a value within a range of 20 ⁇ ⁇ to 40 ⁇ ⁇ .
  • FIG. 3 is a cross-sectional view taken along line I-I 'of FIG.
  • the base substrate 110 is a member for protecting and supporting other components, and may have a plate-like shape.
  • the base substrate 110 may be located at the top of the touch screen display.
  • the base substrate 110 may be a transparent substrate that optically transmits light.
  • Examples of the material for forming the base substrate 110 include tempered glass, polyethylene terephthalate (PET), polycarbonate (PC), polyethylene naphthalate (PEN), and polyimide (PI).
  • the material for forming the base substrate 110 is not particularly limited to those listed above, and these materials may be used singly or in combination of two or more thereof.
  • the first sub-electrodes Xa-1, Xa, and Xa + 1, the second sub-electrodes Yb and Yb + 1, and the connection electrodes CE described in FIGS. 1 and 2 are all formed on the base substrate 110 And is a single layer formed by patterning the same layer. That is, the first sub-electrodes Xa-1, Xa, Xa + 1, the second sub-electrodes Yb, Yb + 1, and the connection electrode CE are formed by patterning one conductive layer.
  • the outer electrode CBE is formed as a single layer together with the first sub-electrodes Xa-1, Xa, Xa + 1, the second sub-electrodes Yb, Yb + 1 and the connecting electrode CE .
  • the first sub-electrodes Xa-1, Xa and Xa + 1, the second sub-electrodes Yb and Yb + 1, the connecting electrode CE and the outer electrode CBE are formed of an optically transparent conductive material .
  • the transparent conductive material include indium tin oxide (ITO), zinc oxide, indium zinc oxide, carbon nanotube, silver nano wire, Metal mesh, and the like.
  • the transparent conductive layer is formed by applying the transparent conductive material on the entire surface of the base substrate 110, and then the transparent conductive layer is patterned through a photolithography process so that the first sub- A transparent conductive pattern including the first sub-electrodes Xa-1, Xa, Xa + 1, the second sub-electrodes Yb, Yb + 1, the connecting electrode CE and the outer electrode CBE can be formed.
  • An insulating layer 121 is disposed on the transparent conductive pattern.
  • the bridge electrode BRE is insulated from the connecting electrode CE by the insulating layer 121.
  • the insulating layer 121 is formed on the base substrate 110 on which the transparent conductive pattern is formed and includes two second sub-electrodes adjacent to each other, that is, the b-th second sub-electrode Yb and the (b + And the contact holes exposing at least a part of each of the sub-electrodes Yb + 1.
  • the two sub-electrodes adjacent to each other through the bridge electrodes BRE are connected to each other through the contact holes, and thus the second electrode unit YE can be defined.
  • a passivation layer may be further formed on the base substrate 110 on which the bridge electrode BRE is disposed, which passivates the metal terminals as a whole.
  • the present invention can also be applied to a case where the electrode unit YE is a transmitting electrode.
  • the touch panel 101 By designing the touch panel 101 so as to have the first electrode unit XE and the second electrode unit YE having the structures described with reference to FIGS. 1 and 2, the contact area of the conductor with respect to the surface of the touch panel 101 Has a good sensitivity to detect a touch input even if it is reduced to 40% or less.
  • the touch panel 101 according to the present invention exhibits excellent sensitivity and linearity even for a conductive bar having a diameter of 1.5 mm. Accordingly, there is an advantageous effect that an input can be applied to the touch panel 101 using a passive stylus pen having a relatively low unit price.
  • FIG. 4 is a cross-sectional view illustrating a touch panel according to another embodiment of the present invention.
  • the touch panel 102 according to another embodiment of the present invention has a planar structure as shown in FIGS. 1 and 2, Since the cross-sectional structures are substantially the same, the same constituent elements will be referred to by the same reference numerals, duplicate explanations will be omitted, and differences will be described with reference to FIG.
  • a touch panel 102 includes a base substrate 110, first sub-electrodes Xa- A second electrode unit YE including second sub-electrodes Yb and Yb + 1 connected to each other by a bridge electrode BRE, a first electrode unit XE including Xa and Xa, And an insulating layer 122.
  • the bridge electrode BRE is formed on the base substrate 110, the insulating layer 121 is disposed thereon, and the first sub-electrodes Xa 1, Xa, Xa + 1), second sub-electrodes Yb, Yb + 1, a connecting electrode CE and an outer electrode CBE.
  • the connecting electrode CE is insulated from the bridge electrode BRE by the insulating layer 122 disposed on the bridge electrode BRE.
  • a transparent conductive layer is formed on the entire surface of the base substrate 110 on which the insulating layer 122 including the contact holes exposing both ends of the bridge electrode BRE is formed to form a transparent conductive layer,
  • the transparent conductive pattern can be formed in one step by patterning through a photolithography process.
  • a passivation layer may be further formed on the base substrate 110 on which the transparent conductive pattern is formed, which passivates the metal terminals as a whole.
  • FIG. 5 is a partial plan view illustrating a touch panel according to another embodiment of the present invention, and the touch panel 103 according to another embodiment of the present invention includes a first electrode portion, a second electrode portion,
  • the same components will be denoted by the same reference numerals and the description thereof will be omitted, and the difference will be mainly described with reference to FIG.
  • a touch panel 103 includes first base electrodes 110 and first sub-electrodes Xa-1, Xa, Xa + 1 And a second electrode unit YE and an insulating layer 122 connected to each other by an outer electrode CBE.
  • the first electrode unit XE includes the first electrode unit XE and the second electrode unit XE.
  • Each of the chain patterns P1, P2 and P3 is a pattern formed by alternately arranging the bridge electrodes BRE and the second sub-electrodes, and the chain patterns P1, P2, And constitute a second electrode portion YE of a single closed curve.
  • a single closed curve of one second electrode unit YE is divided into two regions by the chain pattern P2 which is an electrode pattern arranged in the middle, and the first sub-electrode Xa in the first region is divided into two regions
  • the first sub-electrodes Xa + 1 and the (a + 1) -th row sub-electrodes Xa + 1 may be arranged in a line in the second direction D2 in two directions D2.
  • the layered structure of the touch panel 103 described in FIG. 5 is a structure in which the base substrate 110, the transparent conductive pattern, the insulating layer 121, and the bridge electrode BRE are stacked in this order, Lt; / RTI >
  • the layered structure of the touch panel 103 described with reference to FIG. 5 has a structure in which the base substrate 110, the bridge electrode BRE, the insulating layer 122, and the transparent conductive pattern are stacked in this order Lt; / RTI >
  • FIG. 6 is a view for explaining a touch panel according to another embodiment of the present invention
  • FIG. 7 is a sectional view taken along line II-II 'of FIG.
  • the touch panel 104 according to another embodiment of the present invention shown in Figs. 6 and 7 may be substantially the same as the touch panel 101 described with reference to Figs. 1 to 3 except that it further includes a dummy pattern DE. . Therefore, the same components will be denoted by the same reference numerals, and redundant description will be omitted, and differences will be mainly described.
  • the touch panel 104 includes a dummy pattern DE.
  • the dummy pattern DE is disposed in a spaced-apart area between the first electrode unit XE and the second electrode unit YE and is spaced apart from the first electrode unit XE and the second electrode unit YE, do.
  • the dummy pattern DE may be formed by patterning the transparent conductive layer in the process of forming the transparent electrode pattern including the first electrode unit XE and the second electrode unit YE to form the first electrode unit XE, Electrode portion YE.
  • the dummy pattern DE can be formed by arraying island-shaped (or dot-shaped) unit electrodes in a row.
  • the dummy pattern DE is disposed in the spaced-apart area between the first electrode unit XE and the second electrode unit YE, thereby minimizing the noise capacitance that may occur in the touch panel 104, thereby reducing the total capacitance So that the sensitivity and linearity of the touch panel 104 can be further improved.
  • the second electrode unit YE includes three chain patterns
  • the dummy pattern DE can also be applied to a structure having this connected structure.
  • the dummy pattern DE of FIG. 6 may be disposed between the first electrode unit XE and the second electrode unit YE in the cross-sectional structure of the touch pattern 102 described in FIG. And may be formed in a process of forming a transparent electrode pattern.
  • FIG. 8 is a partial plan view illustrating a touch panel according to another embodiment of the present invention.
  • the touch panel 105 includes a first electrode unit XE extending in a first direction D1 and a second electrode unit YE extending in a second direction D2,
  • the one electrode unit XE has a chain pattern in which the first sub-electrodes Xa and Xa + 1 and the bridge electrode BRE are alternately arranged in the first direction D1, and the second electrode unit YE
  • the electrode pattern of the second electrode unit YE has a linear structure and is integrally connected to the outer electrode CBE, and the two electrode patterns constitute one second electrode unit YE .
  • the overlapped portion of the portion where the first electrode portion XE and the second electrode portion YE intersect at the portion B in the structure of FIG. 8 is the overlapping portion between the transverse length in the first direction D1 and the transverse length in the second direction D2 ) Is in the range of 1: 1 or more and 1: 5 or less.
  • the width in the first direction D1 in the overlapping portion is 90 ⁇ ⁇
  • the length in the second direction D2 may have a value in the range of 90 ⁇ ⁇ to 450 ⁇ ⁇ .
  • the two electrode patterns constitute one second electrode portion YE since the two electrode patterns constitute one second electrode portion YE, the portions different from those of FIG. 8 are substantially the same, and the sensitivity is lower than that in the case where three electrode patterns constitute one second electrode portion It increases significantly by over 2.5 percentage points.
  • the% point value as an absolute value is a small value, considering that it is very difficult to increase the sensitivity of the entire touch panel by 1% point through the structural change, according to the present invention, it is confirmed that the sensitivity increase is more than 2.5% have. 8, the sensitivity is 10.8% in the case where the three electrode patterns constitute one second electrode portion, while the increase is 7.1% in the case of the touch panel having the structure as shown in FIG. 8, to 17.9% .
  • the sensitivity of the touch panel 101 constituting one second electrode unit YE is 17.3%
  • the three electrode patterns described in FIG. 5 correspond to one second electrode unit
  • the sensitivity of the touch panel 103 constituting the touch panel 103 is 13.4%.
  • the sensitivity of these touch panels is only about 10% in the case where the parts other than those in FIG. 8 are substantially the same and the three electrode patterns constitute one second electrode part, but the sensitivity according to an embodiment of the present invention It can be confirmed that the touch panel 101 shown in Fig. 1, the touch panel 103 described in Fig. 5, and the touch panel 105 described in Fig. 8 increase to at least 2.5% or more.
  • the layered structure of the touch panel 105 shown in FIG. 8 has a structure in which the base substrate 110, the transparent conductive pattern, the insulating layer 121, and the bridge electrode BRE are stacked in this order, Lt; / RTI >
  • the layered structure of the touch panel 105 described with reference to FIG. 8 has a structure in which a base substrate 110, a bridge electrode BRE, an insulating layer 122, and a transparent conductive pattern are stacked in this order Lt; / RTI >
  • FIG. 9 is a view showing a unit cell for explaining a touch panel according to another embodiment of the present invention, and the touch panel 106 of FIG. 9 includes a dummy pattern DE, Is substantially the same as the touch panel 105 described in Fig. Therefore, redundant detailed description will be omitted.
  • the dummy pattern DE of Fig. 9 is substantially the same as the dummy pattern DE described in Figs. Therefore, redundant detailed description will be omitted.
  • FIG. 10 is a plan view for explaining a touch panel according to another embodiment of the present invention
  • FIG. 11 is a cross-sectional view taken along the line III-III 'of FIG.
  • the touch panel 107 according to another embodiment of the present invention shown in Figs. 10 and 11 is substantially the same as the touch panel 101 described in Figs. 1 to 3 except for the structure of the bridge electrode BRE . Therefore, redundant detailed descriptions are omitted.
  • the bridge electrode BRE may have a line shape extending continuously along the second direction D2, which is the extension direction of the second electrode unit YE.

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  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Quality & Reliability (AREA)
  • Position Input By Displaying (AREA)

Abstract

La présente invention concerne un panneau tactile comprenant : une pluralité de premières parties d'électrode, s'étendant chacune dans une première direction et placées de manière à être espacées les unes des autres dans une seconde direction croisant la première direction ; et une pluralité de secondes parties d'électrode comprenant des motifs d'électrode s'étendant dans la seconde direction et placées dans la première direction. Au moins deux motifs d'électrode adjacents sont connectés par une paire d'électrodes externes disposées chacune aux deux extrémités desdits motifs et forment une structure incurvée fermée unique, et la première partie d'électrode ou la seconde partie d'électrode comprend des sous-électrodes placées à distance les unes des autres le long de la direction d'extension de la partie d'électrode, et des motifs de chaîne formés par des électrodes de pont connectent les sous-électrodes adjacentes l'une à l'autre dans la direction d'extension.
PCT/KR2017/011783 2017-08-29 2017-10-24 Panneau tactile WO2019045172A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201780001868.5A CN109729728A (zh) 2017-08-29 2017-10-24 触摸面板

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KR10-2017-0109295 2017-08-29
KR1020170109295A KR101940922B1 (ko) 2017-08-29 2017-08-29 터치 패널

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WO2019045172A1 true WO2019045172A1 (fr) 2019-03-07

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CN113157142B (zh) * 2021-05-25 2024-04-19 京东方科技集团股份有限公司 一种触控显示面板和显示装置

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CN114077328B (zh) * 2020-08-18 2024-01-30 京东方科技集团股份有限公司 触控面板及触控显示面板

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