WO2021206386A1 - Structure d'électrode d'insertion d'antenne et dispositif d'affichage d'image la comprenant - Google Patents

Structure d'électrode d'insertion d'antenne et dispositif d'affichage d'image la comprenant Download PDF

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Publication number
WO2021206386A1
WO2021206386A1 PCT/KR2021/004201 KR2021004201W WO2021206386A1 WO 2021206386 A1 WO2021206386 A1 WO 2021206386A1 KR 2021004201 W KR2021004201 W KR 2021004201W WO 2021206386 A1 WO2021206386 A1 WO 2021206386A1
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Prior art keywords
sensing electrodes
antenna
pattern
electrode structure
insertion electrode
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PCT/KR2021/004201
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English (en)
Korean (ko)
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맹창준
조은현
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동우화인켐 주식회사
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Publication of WO2021206386A1 publication Critical patent/WO2021206386A1/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
    • G06F3/0412—Digitisers structurally integrated in a display
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • 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
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0445—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • 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
    • G06F3/045—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using resistive elements, e.g. a single continuous surface or two parallel surfaces put in contact
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
    • H01Q1/243—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
    • 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
    • G06F2203/04102—Flexible digitiser, i.e. constructional details for allowing the whole digitising part of a device to be flexed or rolled like a sheet of paper
    • 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
    • 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
    • G06F2203/04113—Peripheral electrode pattern in resistive digitisers, i.e. electrodes at the periphery of the resistive sheet are shaped in patterns enhancing linearity of induced field

Definitions

  • the present invention relates to an antenna insertion electrode structure and an image display device including the same. More particularly, it relates to an antenna insertion electrode structure including an antenna pattern and a sensing electrode, and an image display device including the same.
  • the image display device is combined with a communication device such as a smart phone.
  • a communication device such as a smart phone.
  • an antenna for realizing high-frequency or ultra-high frequency communication in the range of 3G to 5G or higher may be mounted on the image display device.
  • the radiation patterns of the touch sensing electrodes and the antenna may be distributed together. Accordingly, the touch sensing sensitivity may be reduced due to the radiation pattern of the antenna. In addition, radiation characteristics of the antenna may be disturbed by the touch sensing electrodes.
  • Korean Patent Application Laid-Open No. 2014-0092366 a touch screen panel in which a touch sensor is coupled to various image display devices has recently been developed.
  • Korean Patent Application Laid-Open No. 2013-0095451 discloses an antenna integrated into a display panel.
  • an image display device in which an antenna and a touch sensor are efficiently disposed together is not disclosed.
  • One object of the present invention is to provide an antenna insertion electrode structure having improved radiation characteristics and sensing reliability.
  • An object of the present invention is to provide an image display device including an antenna insertion electrode structure having improved radiation characteristics and sensing reliability.
  • base layer 1. base layer; first sensing electrodes and second sensing electrodes disposed on different layers with the base layer interposed therebetween; and an antenna pattern disposed on the same layer as the second sensing electrodes and including a radiation pattern disposed between the neighboring second sensing electrodes.
  • the antenna pattern further includes a transmission line connected to one end of the radiation pattern and a signal pad connected to an end of the transmission line, wherein the signal pad is the second trace in the peripheral region of the base layer.
  • the antenna insertion electrode structure which is disposed so as not to overlap with.
  • Display panel and an antenna insertion electrode structure of the above-described embodiments stacked on the display panel.
  • the antenna pattern may be disposed on the same layer as any one of the first sensing electrode and the second sensing electrode. Therefore, it is possible to enhance mutual independence while suppressing mutual interference between touch sensing driving/antenna radiation driving in the touch sensor by utilizing the thin electrode stacked structure.
  • the line width of the second sensing electrode disposed together with the antenna pattern may be relatively reduced. Accordingly, it is possible to sufficiently secure a space for insertion of the antenna pattern to improve radiation independence, and to increase the line width of the first sensing electrode relatively to ensure sufficient generation of capacitance for touch sensing.
  • dummy patterns may be formed around the antenna pattern and the second sensing electrode, and an opening overlapping the antenna pattern may be formed in the first sensing electrode. Accordingly, it is possible to more effectively prevent mutual interference of antenna radiation/touch sensing while reducing electrode visibility due to the antenna pattern.
  • 1 to 4 are schematic cross-sectional views for explaining an antenna insertion electrode structure according to exemplary embodiments.
  • 5 and 6 are schematic plan views for explaining a sensing electrode arrangement of an antenna insertion electrode structure according to exemplary embodiments.
  • FIG. 7 and 8 are schematic plan views for explaining an antenna insertion electrode structure according to exemplary embodiments.
  • FIG. 9 is a schematic plan view for explaining an antenna insertion electrode structure according to some exemplary embodiments.
  • FIGS. 10 and 11 are schematic cross-sectional views and plan views, respectively, for explaining a display device including an antenna insertion electrode structure according to example embodiments.
  • Embodiments of the present invention provide an antenna insertion electrode structure including an antenna pattern and a sensing electrode together.
  • an image display device including the antenna insertion electrode structure.
  • first direction may correspond to the width direction of the antenna insertion electrode structure or the image display device.
  • second direction may correspond to the length direction of the antenna insertion electrode structure or the image display device.
  • 1 to 4 are schematic cross-sectional views for explaining an antenna insertion electrode structure according to exemplary embodiments.
  • the antenna insertion electrode structure is formed on the base layer 100 , the second sensing electrode 130 and the antenna pattern 150 formed on the upper surface of the base layer 100 , and on the lower surface of the base layer 100 . It may include a first sensing electrode 110 formed on the .
  • the substrate layer 100 is used to encompass a support layer or a film-type substrate for forming the sensing electrodes 110 and 130 and the antenna pattern 150 .
  • the base layer 100 may be a film material commonly used for a touch sensor without any particular limitation, and may include, for example, glass, a polymer, and/or an inorganic insulating material.
  • polymer examples include cyclic olefin polymer (COP), polyethylene terephthalate (PET), polyacrylate (PAR), polyetherimide (PEI), polyethylene naphthalate (PEN), polyphenylene sulfide (PPS), poly Allylate (polyallylate), polyimide (PI), cellulose acetate propionate (CAP), polyethersulfone (PES), cellulose triacetate (TAC), polycarbonate (PC), cyclic olefin copolymer (COC), poly Methyl methacrylate (PMMA), etc. are mentioned.
  • the inorganic insulating material examples include silicon oxide, silicon nitride, silicon oxynitride, and metal oxide.
  • the base layer 100 may serve as a dielectric layer of the antenna pattern 150 .
  • the dielectric constant of the base layer 100 may be adjusted in the range of about 1.5 to 12.
  • the driving frequency is excessively reduced, so that driving in a desired high frequency or very high frequency band may not be realized.
  • the first sensing electrode 110 and the second sensing electrode 130 are vertically spaced apart from each other with the base layer 100 interposed therebetween, and may be located in different layers or at different levels. According to example embodiments, touch sensing may be implemented through mutual capacitance generated by the first and second sensing electrodes 110 and 130 .
  • the first sensing electrode 110 may be disposed on the bottom surface of the base layer 100
  • the second sensing electrode 130 may be disposed on the top surface of the base layer 100 .
  • the sensing electrodes 110 and 130 are transparent such as, for example, indium tin oxide (ITO), indium zinc oxide (IZO), zinc oxide (ZnO), indium zinc tin oxide (IZTO), cadmium tin oxide (CTO), or the like. It may contain a conductive oxide.
  • ITO indium tin oxide
  • IZO indium zinc oxide
  • ZnO zinc oxide
  • IZTO indium zinc tin oxide
  • CTO cadmium tin oxide
  • the sensing electrodes 110 and 130 may include silver (Ag), gold (Au), copper (Cu), aluminum (Al), platinum (Pt), palladium (Pd), or chromium (Cr). , titanium (Ti), tungsten (W), niobium (Nb), tantalum (Ta), vanadium (V), iron (Fe), manganese (Mn), cobalt (Co), nickel (Ni), zinc (Zn) , molybdenum (Mo), tin (Sn), calcium (Ca), etc. or an alloy thereof (eg, silver-palladium-copper (APC) or copper-calcium (CuCa)). These may be used alone or in combination of two or more.
  • APC silver-palladium-copper
  • CuCa copper-calcium
  • the sensing electrodes 110 and 130 may include a stacked structure of a transparent conductive oxide layer and a metal or alloy layer.
  • the sensing electrodes 110 and 130 may have a two-layer structure of a transparent conductive oxide layer-metal layer, a three-layer structure of a transparent conductive oxide layer-metal layer-transparent conductive oxide layer, or the like.
  • the signal transmission speed may be improved by lowering the resistance, and corrosion resistance and transparency may be improved by the transparent conductive oxide layer.
  • the sensing electrodes 110 and 130 may be formed of the transparent conductive oxide layer to improve transparency.
  • the sensing electrodes 110 and 130 may have a mesh structure including, for example, the above-described metal or alloy.
  • the antenna pattern 150 may be located on the same layer or on the same level as the first sensing electrode 110 or the second sensing electrode 130 . According to example embodiments, the antenna pattern 150 may be disposed on the upper surface of the base layer 100 together with the second sensing electrode 130 corresponding to the upper sensing electrode.
  • the second sensing electrode 130 may be closer to the touch surface of the user or the display surface of the image display device.
  • the antenna pattern 150 may also be adjacent to the touch surface or the display surface to easily implement radiation characteristics in a desired frequency band.
  • radiation characteristics of the antenna pattern 150 may be implemented relatively freely from shielding by the electrode structures.
  • the antenna pattern 150 may be formed to enable high-frequency or ultra-high frequency communication (eg, 3G, 4G, 5G communication, etc.). The structure and configuration of the antenna pattern 150 will be described later in more detail with reference to FIG. 7 .
  • the antenna pattern 150 may include the aforementioned metal or alloy (eg, APC or CuCa) in consideration of low resistance or fine line width patterning.
  • the antenna pattern 150 may include the above-described transparent conductive oxide.
  • the antenna pattern 150 may include a multilayer structure of a transparent conductive oxide layer and a metal layer (eg, a transparent conductive oxide layer-metal layer structure, a transparent conductive oxide layer-metal layer-transparent conductive oxide layer structure).
  • the antenna pattern 150 may include a mesh structure.
  • a first trace 120 may be connected to each of the first sensing electrodes 110 .
  • the first trace 120 may be disposed on the bottom surface of the base layer 100 together with the first sensing electrode 110 .
  • the first trace 120 may include a first transparent conductive oxide pattern 115 and a first metal pattern 117 .
  • the first transparent conductive oxide pattern 115 and the first metal pattern 117 may be sequentially stacked from the bottom surface of the base layer 100 .
  • the first transparent conductive oxide pattern 115 may include the same material as the first sensing electrode 110 and may be patterned together with the first sensing electrode 110 through substantially the same etching process.
  • the first metal pattern 117 may be stacked on the first transparent conductive oxide pattern 115 to reduce a signal transmission resistance through the first trace 120 .
  • the first metal pattern 117 may include the aforementioned metal or alloy.
  • a second trace 140 may be connected to each of the second sensing electrodes 130 .
  • the second trace 140 may be disposed on the upper surface of the base layer 100 together with the second sensing electrode 130 .
  • the second trace 140 may include a second transparent conductive oxide pattern 135 and a second metal pattern 137 .
  • the second transparent conductive oxide pattern 135 and the second metal pattern 137 may be sequentially stacked from the upper surface of the base layer 100 .
  • the second transparent conductive oxide pattern 135 may include the same material as the second sensing electrode 130 , and may be patterned together with the second sensing electrode 130 through substantially the same etching process.
  • the second metal pattern 137 may be stacked on the second transparent conductive oxide pattern 135 to reduce a signal transmission resistance through the second trace 140 .
  • the second metal pattern 137 may include the aforementioned metal or alloy.
  • the antenna pattern 150 may include substantially the same metal or alloy as the second metal pattern 137 .
  • the antenna pattern 150 may also be formed through substantially the same etching process.
  • the antenna pattern 150 may include a multilayer structure of the transparent conductive oxide layer 152 and the metal layer 154 as described above.
  • the transparent conductive oxide layer 152 and the metal layer 154 may be sequentially stacked from the top surface of the base layer 100 .
  • the transparent conductive oxide layer 152 of the antenna pattern 150 is made of substantially the same material as the second transparent conductive oxide pattern 135 of the second sensing electrode 130 and the second trace 140 . and may be formed through substantially the same etching process.
  • the metal layer 154 of the antenna pattern 150 includes substantially the same metal or alloy as the second metal pattern 137 of the second trace 140 , and may be formed through substantially the same etching process.
  • the antenna pattern 150 includes a multi-layer structure of the transparent conductive oxide layer 152 and the metal layer 154, ensuring sufficient radiation characteristics through the metal layer 154 having a low resistance, while maintaining transparency together. can be improved. Since the transparent conductive oxide layer 152 is included, it is possible to reduce or prevent the antenna pattern 150 from being visually recognized as compared to the second sensing electrode 130 .
  • the second sensing electrode 130 and the second trace 140 are disposed on the bottom surface of the base layer 100
  • the first sensing electrode 110 and the first trace 120 are the base layer. It may be disposed on the upper surface of (100).
  • the antenna pattern 150 may be disposed on the bottom surface of the base layer 100 together with the second sensing electrode 130 .
  • the first sensing electrode 110 and the second sensing electrode 130 may be formed on different substrate layers.
  • first sensing electrode 110 and the first trace 120 are disposed on the upper surface of the first base layer 100a, and the second sensing electrode 130 and the second trace 140 are 2 It may be disposed on the upper surface of the base layer (100b).
  • the first base layer 100a and the second base layer 100b on which the first sensing electrode 110 and the second sensing electrode 130 are formed, respectively, may be coupled to each other through the adhesive layer 50 .
  • the first sensing electrode 110 may be substantially buried in the adhesive layer 50 .
  • the antenna pattern 150 may be disposed on the upper surface of the second base layer 100b, as shown in FIG. 4 . In an embodiment, the antenna pattern 150 may be disposed on the upper surface of the first base layer 100a together with the first sensing electrode 110 .
  • the antenna pattern 150 may be disposed on the same layer as any one of the first sensing electrode 110 and the second sensing electrode 130 . Accordingly, mutual independence can be enhanced while suppressing mutual interference between touch sensing driving/antenna radiation driving in the touch sensor.
  • the antenna pattern 150 is coupled to the same layer as the sensing electrode of the touch sensor, a thin antenna insertion electrode structure can be obtained without additional antenna space allocation.
  • 5 and 6 are schematic plan views for explaining an electrode arrangement for sensing an antenna insertion electrode structure according to exemplary embodiments.
  • the first sensing electrode 110 may extend in a first direction, and a plurality of first sensing electrodes 110 may be arranged along the second direction.
  • the second sensing electrode 130 may extend along the second direction from the upper layer of the first sensing electrode 110 . Also, a plurality of second sensing electrodes 130 may be arranged along the first direction.
  • the line width (eg, in the second direction) of the first sensing electrode 110 is the line width (eg, in the first direction) of the second sensing electrode 130 .
  • width can be greater than
  • the antenna pattern 150 may be disposed together with the second sensing electrode 130 .
  • the line width of the second sensing electrode 130 it is possible to sufficiently secure a space for insertion of the antenna pattern 150 .
  • the line width of the first sensing electrode 110 is relatively increased, so that it is possible to sufficiently ensure the generation of capacitance for touch sensing.
  • one first trace 120 is connected from each of the first sensing electrodes 110 , and a plurality of second sensing electrodes 130 are coupled by the second trace 140 .
  • Substantially one channel may be formed.
  • two second sensing electrodes 130 may be coupled through the second trace 140 .
  • scan/drive signal matching with the first sensing electrode 110 having a relatively large line width may be improved through coupling of the second sensing electrodes 130 .
  • At least one of the first sensing electrode 110 and the second sensing electrode 130 may have a zigzag line or a wavy line shape.
  • the second sensing electrode 130 having a relatively small line width may have a zigzag line or a wavy line shape.
  • the shape of the second sensing electrode 130 may be appropriately changed in consideration of the antenna pattern 150 insertion space.
  • FIG. 7 and 8 are schematic plan views for explaining an antenna insertion electrode structure according to exemplary embodiments.
  • the antenna pattern 150 may include a radiation pattern 160 and a transmission line 162 .
  • the radiation pattern 160 may have, for example, a polygonal shape such as a rhombus shape or a diamond shape.
  • the transmission line 162 may extend from one end of the radiation pattern 160 .
  • a signal pad 164 may be connected to an end of the transmission line 162 .
  • the signal pad 164 may be a single member substantially integrally connected to the transmission line 162 .
  • a ground pad 166 may be disposed around the signal pad 164 .
  • a pair of ground pads 166 may be disposed to face each other with the signal pad 164 interposed therebetween.
  • the ground pad 166 may be electrically and physically separated from the transmission line 162 and the signal pad 164 .
  • the antenna pattern 150 may be disposed on the upper surface of the base layer 100 together with the second sensing electrode 130 .
  • the radiation pattern 160 of the antenna pattern 150 may be disposed between the adjacent second sensing electrodes 130 .
  • the second sensing electrode 130 overlapping the radiation pattern 160 in the second direction is shorter than other adjacent second sensing electrodes 130 .
  • one second sensing electrode 130 eg, the cut first sensing electrode 130
  • the center line of the radiation pattern 160 (eg, a virtual center line extending from the transmission line 162 ) overlaps the cut second sensing electrode 130 in the second direction.
  • the antenna radiation disturbance from the electric field generated by the second sensing electrode 130 is substantially suppressed or avoided. can do.
  • dummy patterns 170 may be distributed along with the second sensing electrodes 130 and the antenna pattern 150 on the upper surface of the base layer 100 .
  • the dummy patterns 170 are arranged around the second sensing electrodes 130 and the antenna pattern 150 , and may be electrically and physically separated from the second sensing electrodes 130 and the antenna pattern 150 . .
  • Each of the dummy patterns 170 may have an island shape or a tile shape.
  • the dummy patterns 170 may include substantially the same material as the second sensing electrode 130 , and may include, for example, a transparent conductive oxide such as ITO or IZO.
  • Some of the dummy patterns 170 may be provided as antenna dummy patterns 175 arranged around the antenna pattern 150 .
  • the antenna dummy pattern 175 is arranged along the edge of the radiation pattern 160 , and may have a shape different from that of the dummy pattern 170 .
  • the dummy patterns 170 are arranged around the second sensing electrodes 130 and the antenna pattern 150 , the regional deviation of the conductive pattern distribution on the upper surface of the base layer 100 may be reduced. Accordingly, the optical uniformity over the base layer 100 may be improved to reduce the electrode visibility phenomenon.
  • the first sensing electrode 110 overlapping the antenna pattern 150 in the thickness direction among the first sensing electrodes 110 may include an opening 112 therein.
  • the opening 112 may be formed to overlap the antenna pattern 150 in a planar direction.
  • the first sensing electrode 110 may include a slit 114 formed at a position overlapping the second sensing electrode 130 in a planar direction.
  • the slits 114 may be repeatedly formed along the second direction to form a slit row.
  • the plurality of slit columns may be arranged along the first direction to overlap the second sensing electrodes 130 , respectively.
  • the slits 114 and the openings 112 are formed at positions overlapping the second sensing electrode 130 and the antenna pattern 150, respectively, it is possible to prevent a decrease in transmittance and an increase in reflectance due to the overlapping of the conductive layers in the vertical direction. have. Accordingly, it is possible to suppress the electrode visibility phenomenon while improving the overall transmittance of the antenna insertion electrode structure.
  • FIG. 9 is a schematic plan view for explaining an antenna insertion electrode structure according to some exemplary embodiments.
  • the radiation pattern 160 may include a mesh structure.
  • the radiation pattern 160 includes a metal layer, a decrease in transmittance due to insertion of the antenna pattern 150 may be suppressed by employing the mesh structure.
  • the transmission line 162 also includes the mesh structure and may be substantially integrally connected to the radiation pattern 160 .
  • a dummy mesh pattern 177 may be formed around the radiation pattern 160 . Through the dummy mesh pattern 177 , the uniformity of the distribution of conductive lines around the radiation pattern 160 may be improved, thereby suppressing visibility of the radiation pattern 160 .
  • the dummy mesh pattern 177 may be disposed around the radiation pattern 160 , and the dummy pattern 170 may be distributed outside the dummy mesh pattern 177 .
  • the signal pad 164 and the ground pattern 166 may have a solid metal pattern structure for reducing power supply resistance and for noise shielding efficiency.
  • the signal pad 164 and the ground pad 166 may be disposed in a peripheral area of the base layer 100 in which the second sensing electrode 130 is not disposed.
  • FIGS. 10 and 11 are schematic cross-sectional views and plan views, respectively, for explaining a display device including an antenna insertion electrode structure according to example embodiments.
  • the image display apparatus may include a display panel 360 and the antenna insertion electrode structure 200 stacked on the display panel 360 according to the above-described exemplary embodiments.
  • the display panel 360 may include a display structure and an encapsulation layer 350 disposed on the panel substrate 300 .
  • the display structure may include a pixel electrode 310 , a pixel defining layer 320 , a display layer 330 , a counter electrode 340 , and the like.
  • a pixel circuit including a thin film transistor (TFT) may be formed on the panel substrate 300 , and an insulating layer covering the pixel circuit may be formed.
  • the pixel electrode 310 may be electrically connected to, for example, a drain electrode of a TFT on the insulating layer.
  • the pixel defining layer 320 may be formed on the insulating layer to expose the pixel electrode 310 to define a pixel area.
  • a display layer 330 is formed on the pixel electrode 310 , and the display layer 330 may include, for example, a liquid crystal layer or an organic light emitting layer.
  • a counter electrode 340 may be disposed on the pixel defining layer 320 and the display layer 330 .
  • the counter electrode 340 may be provided as a common electrode or a cathode of the image display device.
  • An encapsulation layer 350 for protecting the display panel 360 may be stacked on the opposite electrode 340 .
  • the display panel 360 and the antenna insertion electrode structure 200 may be coupled through the adhesive layer 260 .
  • the antenna insertion electrode structure 200 may be directly laminated or formed on the encapsulation layer 350 .
  • the adhesive layer 260 may be omitted.
  • a polarization layer 210 and a window substrate 230 may be sequentially stacked on the antenna insertion electrode structure 200 .
  • the polarizing layer 210 may include a coated polarizer or a polarizing plate.
  • the coating-type polarizer may include a liquid crystal coating layer including a polymerizable liquid crystal compound and a dichroic dye.
  • the polarizing layer 210 may further include an alignment layer for imparting alignment to the liquid crystal coating layer.
  • the polarizing plate may include a polyvinyl alcohol-based polarizer and a protective film attached to at least one surface of the polyvinyl alcohol-based polarizer.
  • the polarization layer 210 may be directly bonded to the one surface of the window substrate 230 or may be attached through the first adhesive layer 220 .
  • the polarization layer 210 may be bonded to the antenna insertion electrode structure 200 through the second adhesive layer 220 .
  • the window substrate 230 includes, for example, a hard coating film or a glass substrate (eg, ultra-thin glass (UTG)), and in one embodiment, on the periphery of one side of the window substrate 230 .
  • a light blocking pattern 235 may be formed in the light blocking pattern 235.
  • the light blocking pattern 235 may include, for example, a color printing pattern, and may have a single-layer or multi-layer structure.
  • a bezel part or a non-display area may be defined.
  • the window substrate 230 , the polarization layer 210 , and the antenna insertion electrode structure 200 may be sequentially disposed from the user's viewing side.
  • the sensing electrodes 110 and 130 and the antenna patterns 150 of the antenna insertion electrode structure 200 are disposed under the polarization layer 210, the electrode visibility phenomenon can be more effectively prevented.
  • the window substrate 230 , the antenna insertion electrode structure 200 , and the polarization layer 210 may be disposed in the order from the user's viewing side. In this case, since the antenna pattern 150 and the sensing electrodes 110 and 130 are more adjacent to the display surface or the touch surface, radiation gain and sensing sensitivity may be improved.
  • the above-described window substrate 230 , the polarization layer 210 , and the antenna insertion electrode structure 200 may be combined as an integral unit to define the window stack 250 .
  • the base layer 100 of the image display device or the antenna insertion electrode structure 200 may include a display area DA and a peripheral area PA.
  • the display area DA may correspond to an active area in which the sensing electrodes 110 and 130 of the antenna insertion electrode structure 200 are disposed and touch sensing is substantially input/recognized.
  • the sensing electrodes 110 and 130 and the antenna pattern 150 may be disposed on the display area DA. Traces 120 and 140 may be disposed on the peripheral area PA. A signal pad 164 and a ground pad 166 of the antenna pattern 150 may also be disposed on the peripheral area PA.
  • the traces 120 and 140 extend to one end (eg, one end in the longitudinal direction) of the image display device or the antenna insertion electrode structure 200 and are traced on the one end. Distal ends of the electrodes 120 and 140 may be electrically connected to the touch sensor driving integrated circuit (IC) chip 420 .
  • IC touch sensor driving integrated circuit
  • a first flexible printed circuit board 410 is bonded on distal ends of the traces 120 and 140 , and a touch sensor driving integrated circuit chip 420 is formed on the first flexible printed circuit board 410 . can be mounted.
  • the touch sensor driving integrated circuit chip 420 may be directly surface mounted on the first flexible printed circuit board 410 .
  • a rigid printed circuit board may be additionally disposed between the first flexible printed circuit board 410 and the touch sensor driving integrated circuit chip 420 .
  • the antenna driving IC chip 440 for applying power and driving signals to the antenna patterns 150 may be disposed adjacent to the other end opposite to the one end of the base layer 100 .
  • the radiation patterns of the antenna pattern 150 may be disposed in the end area A1 and/or the side area A2 adjacent to the other end of the display area DA.
  • the signal pad 164 and the ground pad 166 of the antenna pattern 150 may be disposed in the peripheral area PA adjacent to the end area A1 and/or the side area A2 .
  • the signal pad 164 and the ground pad 166 may be formed by patterning a portion of a guard line (eg, a touch sensor ground line) disposed on the peripheral area PA.
  • a second flexible printed circuit board 430 bonded to the signal pad 164 included in the antenna pattern 150 is disposed on the other end, and the antenna is disposed on the second flexible printed circuit board 430 .
  • a driving IC chip 440 may be mounted.
  • the antenna driving IC chip 440 may be directly surface mounted on the second flexible printed circuit board 430 .
  • a rigid printed circuit board may be additionally disposed between the second flexible printed circuit board 430 and the antenna driving IC chip 440 .
  • the circuit connection may be designed to improve the mutual independence of touch sensing and antenna radiation by dividing the region of the image display device or the base layer 100 .

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Optics & Photonics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Quality & Reliability (AREA)
  • Details Of Aerials (AREA)
  • Position Input By Displaying (AREA)

Abstract

Des modes de réalisation de la présente invention concernent une structure d'électrode d'insertion d'antenne et un dispositif d'affichage d'image la comprenant. Une structure d'électrode d'insertion d'antenne comprend : une couche de base ; des premières électrodes de détection et des secondes électrodes de détection disposées sur différentes couches, la couche de base étant interposée entre celles-ci ; et un motif d'antenne comprenant une électrode de rayonnement disposée sur la même couche que les secondes électrodes de détection et disposée entre les secondes électrodes de détection qui sont adjacentes l'une à l'autre.
PCT/KR2021/004201 2020-04-06 2021-04-05 Structure d'électrode d'insertion d'antenne et dispositif d'affichage d'image la comprenant WO2021206386A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020200041375A KR20210123769A (ko) 2020-04-06 2020-04-06 안테나 삽입 전극 구조체 및 이를 포함하는 화상 표시 장치
KR10-2020-0041375 2020-04-06

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WO2021206386A1 true WO2021206386A1 (fr) 2021-10-14

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KR (1) KR20210123769A (fr)
CN (2) CN215117477U (fr)
WO (1) WO2021206386A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20130070247A (ko) * 2011-12-19 2013-06-27 엘지전자 주식회사 터치 패널 및 이를 포함하는 이동 단말기
KR20140100822A (ko) * 2013-02-07 2014-08-18 삼성디스플레이 주식회사 안테나 패턴을 포함하는 터치스크린패널 및 이를 구비한 영상표시장치
US20170139520A1 (en) * 2015-11-17 2017-05-18 Jtouch Corporation Metal mesh touch module with transparent antenna and touch display apparatus using same
KR101940798B1 (ko) * 2018-03-06 2019-01-21 동우 화인켐 주식회사 필름 안테나 및 이를 포함하는 디스플레이 장치
KR20190018796A (ko) * 2017-08-16 2019-02-26 동우 화인켐 주식회사 투명 전극 적층체 및 이의 제조 방법

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW201337705A (zh) 2011-10-25 2013-09-16 Unipixel Displays Inc 偏光膜電阻式觸控螢幕

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20130070247A (ko) * 2011-12-19 2013-06-27 엘지전자 주식회사 터치 패널 및 이를 포함하는 이동 단말기
KR20140100822A (ko) * 2013-02-07 2014-08-18 삼성디스플레이 주식회사 안테나 패턴을 포함하는 터치스크린패널 및 이를 구비한 영상표시장치
US20170139520A1 (en) * 2015-11-17 2017-05-18 Jtouch Corporation Metal mesh touch module with transparent antenna and touch display apparatus using same
KR20190018796A (ko) * 2017-08-16 2019-02-26 동우 화인켐 주식회사 투명 전극 적층체 및 이의 제조 방법
KR101940798B1 (ko) * 2018-03-06 2019-01-21 동우 화인켐 주식회사 필름 안테나 및 이를 포함하는 디스플레이 장치

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CN113495648A (zh) 2021-10-12
KR20210123769A (ko) 2021-10-14

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