WO2013129810A1 - 터치스크린 센서, 이를 구비하는 영상 표시 장치 및 그 제조 방법 - Google Patents

터치스크린 센서, 이를 구비하는 영상 표시 장치 및 그 제조 방법 Download PDF

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Publication number
WO2013129810A1
WO2013129810A1 PCT/KR2013/001490 KR2013001490W WO2013129810A1 WO 2013129810 A1 WO2013129810 A1 WO 2013129810A1 KR 2013001490 W KR2013001490 W KR 2013001490W WO 2013129810 A1 WO2013129810 A1 WO 2013129810A1
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Prior art keywords
pattern
touch screen
angle
sensor
sensor plate
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PCT/KR2013/001490
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English (en)
French (fr)
Korean (ko)
Inventor
유성진
최형배
박기원
이웅상
Original Assignee
미래나노텍 주식회사
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Priority to CN201380011345.0A priority Critical patent/CN104137040B/zh
Publication of WO2013129810A1 publication Critical patent/WO2013129810A1/ko

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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
    • G06F3/0443—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a single layer of sensing electrodes
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0446—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04103—Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
    • 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
    • G06F2203/04112—Electrode mesh in capacitive digitiser: electrode for touch sensing is formed of a mesh of very fine, normally metallic, interconnected lines that are almost invisible to see. This provides a quite large but transparent electrode surface, without need for ITO or similar transparent conductive material
    • 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

Definitions

  • the present invention relates to a touch screen sensor, an image display device having the same, and a method of manufacturing the same. More particularly, the present invention can prevent moiré phenomena due to optical interference between the sensing unit patterns of the touch screen sensors located above and below the display device.
  • a touch screen sensor, an image display device having the same, and a manufacturing method thereof are provided.
  • the touch screen sensor is an input device that is added to or embedded in a display device such as a liquid crystal display (LCD), a plasma display panel (PDP), an organic light emitting diode (OLED), an active matrix organic light emitting diode (AMOLED), or the like.
  • a display device such as a liquid crystal display (LCD), a plasma display panel (PDP), an organic light emitting diode (OLED), an active matrix organic light emitting diode (AMOLED), or the like.
  • Touch input devices are recently installed in mobile devices such as mobile phones, personal digital assistants (PDAs), portable multimedia players (PMPs), and the like.
  • PDAs personal digital assistants
  • PMPs portable multimedia players
  • DIDs digital information devices
  • It is used in all kinds of industries such as desktop computers using touch input operating systems, IPTV (Internet Protocol TV), high-tech fighters, tanks and armored vehicles.
  • the touch screen sensor In the case of the touch screen sensor, it has a light transmission to reduce visibility and is formed through a sensing unit using a conductive material.
  • the sensing unit is formed in a repetitive pattern for recognizing the position of the input signal on the touch screen sensor. As the sensor layers including the sensing unit are stacked in parallel, the patterns overlap and the moiré pattern is caused by mutual interference of the patterns. have.
  • the present invention has been made to solve the above problems, the problem to be solved in the present invention is that when the patterns formed by the electrode of the sensor plate overlap with each other due to the stacking between the sensor plate or the image display panel, the pattern
  • the present invention provides a touch screen sensor and a method of manufacturing the same, which can prevent the deterioration of image quality caused by the moire fringe by giving a twist along a predetermined angle therebetween.
  • the pattern of the connecting portion connecting the plurality of sensing units to form the same pattern as the pattern of the sensing unit to reduce the visibility, and to open the electrode without connecting the edge of the sensing unit or the connecting portion to the edge electrode, the electrode actually separated at a minute interval
  • the present invention provides a touch screen sensor and a method of manufacturing the same, which make the user appear to be continuous.
  • the present invention also provides a touch screen sensor and a method of manufacturing the same, in which a black layer of a black system is formed outside the electrode layer on which the electrode is formed so that the electrode layer is not exposed.
  • Another object to be solved by the present invention is to provide a video display device and a manufacturing method that can remove the moire fringe and improve the image quality by simply adjusting the direction of the touch screen sensor and the display device without a separate process.
  • the touch screen sensor according to the present invention for solving the above problems is a touch screen sensor that receives the input signal of the sensor plate to recognize the user's touch coordinates, the user's touch using an electrode connected in a predetermined first pattern A first detector plate generating a first input signal according to the input; And a second detector plate positioned on an upper surface of the first detector plate and generating a second input signal according to a user's touch input using an electrode connected in a predetermined second pattern that is not parallel to the first pattern. It is characterized by the technical features.
  • the technical feature is that the size of the angle between the first pattern and the second pattern is 27 ° or less.
  • an image display device includes an image information display unit displaying image information using a plurality of pixels, and a touch screen sensor according to the present invention.
  • the image information display unit has a black matrix pattern formed between the plurality of pixels, and the black matrix pattern, the first pattern and the second pattern are each arranged so as not to be parallel to each other.
  • a method of manufacturing a touch screen sensor comprising: forming a first detector plate generating a first input signal according to a user's touch input using electrodes connected in a predetermined first pattern; And forming a second detector plate that generates a second input signal according to a user's touch input by using electrodes connected in a second pattern that is not parallel to the first pattern, and positioned on an upper surface of the first detector plate. It is characterized in that it comprises a second sensor plate forming step.
  • a method of manufacturing an image display device comprising: forming an image information display unit for displaying image information using a plurality of pixels; A first detector plate forming step of forming a first detector plate generating a first input signal according to a user's touch input by using electrodes connected in a predetermined first pattern and placing the first detector plate on an upper surface of the image information display unit; And forming a second detector plate that generates a second input signal according to a user's touch input by using electrodes connected in a second pattern that is not parallel to the first pattern, and positioned on an upper surface of the first detector plate. It is characterized in that it comprises a second sensor plate forming step.
  • the touch screen sensor according to the present invention is formed to form a predetermined angle to the grid pattern formed by the overlapping patterns formed by the sensing unit to prevent the generation of moire fringes to prevent degradation of the image quality caused by the moire fringes Can be.
  • the prevention of such deterioration is possible only by adjusting the direction between touch screen sensors without a separate process.
  • the sensing unit of the touch screen sensor is not recognized by the user.
  • FIG. 1 is an exemplary view showing an image display device having a touch screen sensor according to an embodiment of the present invention.
  • FIGS. 2A and 2B illustrate an image information display unit and a first display unit of an image display device according to the present embodiment.
  • Figure 3a is an exemplary view showing an example of the generation of moiré phenomenon according to the prior art to be solved in the present invention
  • Figure 3b is an exemplary view showing a configuration for preventing the moiré phenomenon according to an embodiment of the present invention
  • FIG 4 is an exemplary view illustrating stacking of a first sensor plate and a second sensor plate of the image display device according to the present embodiment.
  • FIG. 5 is an exemplary view showing an electrode structure of a detector plate of an image display device according to an embodiment of the present invention.
  • FIGS. 6A and 6B illustrate stages of a detector plate of an image display device according to an embodiment of the present invention.
  • FIG. 7A and 7B are exemplary views illustrating a sensing unit and a connecting unit of a detector plate of a video display device according to the related art to be solved by the present invention.
  • FIGS. 8A and 8B are exemplary views illustrating a sensing unit and a connecting unit of a sensor plate of an image display device according to an embodiment of the present invention.
  • 9 and 10 are exemplary views illustrating a layer structure of an image display device according to an embodiment of the present invention.
  • FIG. 11 illustrates an image display device having a touch screen sensor according to an embodiment of the present invention.
  • FIGS. 12A and 12B are diagrams showing an example of lamination of the image information display unit and the detector plate of the image display apparatus according to the present embodiment
  • FIG. 13 is a flowchart illustrating a method of manufacturing an image display apparatus having a touch screen sensor according to an embodiment of the present invention.
  • FIG. 14 is a detailed flowchart illustrating a substrate forming step of a method of manufacturing an image display device according to an embodiment of the present invention.
  • the touch screen sensor receives an input signal of the sensor plate and recognizes the touch coordinates of the user.
  • the touch screen sensor recognizes the touch signal as an input signal when an object such as a finger or a touch pen touches the screen.
  • the touchscreen sensor can be of the resistive, capacitive, and projected capacitive type, for example.
  • the conventional touch screen sensor also has a problem that when the conductive layer is formed of a material other than ITO, the pattern is recognized when there is a difference in the dimensions of the operation and the sensing pattern due to the opacity of the conductive layer. In addition, there is a problem that the manufacturing cost of the touch screen sensor including the same because the price of the ITO material itself is expensive.
  • the present invention proposes a capacitive touch screen sensor using a sensor plate forming a conductive layer having a lower resistance than ITO, an image display device having the same, and a method of manufacturing the same.
  • the term “substrate” is used for manufacturing touch screen sensors and may also be referred to as “film”.
  • the touch screen sensor may be manufactured by forming two substrates by using the substrate alone or the substrate as an upper substrate and a lower substrate, and bonding them.
  • the first substrate is referred to herein as the first substrate or the lower substrate. It may be any one of the, and it is to be noted that the second substrate may be any one of the lower substrate or the upper substrate is named as the first and second substrates for use without distinguishing the upper and lower. do.
  • the image display apparatus includes an image information display unit 100, a first sensor plate 200, and a second sensor plate 300.
  • the image information display unit 100 displays image information using a plurality of pixels.
  • the image information display unit 100 is a liquid crystal display (LCD), a plasma display panel (PDP) used in a mobile device such as a mobile phone, a personal digital assistant (PDA), a portable multimedia player (PMP), or the like. ), An organic light emitting diode (OLED), an active matrix organic light emitting diode (AMOLED), and the like.
  • LCD liquid crystal display
  • PDP plasma display panel
  • PMP portable multimedia player
  • OLED organic light emitting diode
  • AMOLED active matrix organic light emitting diode
  • images from all industries such as navigation, netbooks, laptops, digital information devices (DIDs), desktop computers using touch input enabled operating systems, IPTV (Internet Protocol TV), high-tech fighters, tanks, armored vehicles, etc. It may include a device for displaying.
  • the first detector plate 200 is positioned on an upper surface of the image information display unit 100 and uses a electrode connected to a predetermined first pattern 210 having a predetermined first angle to receive a first input signal according to a user's touch input.
  • Create Positioning on the upper surface of the image information display unit 100 means that the first sensor plate 200 is stacked on the image information display unit 100 when stacked in the order shown in FIG. 1.
  • the touch input includes an input through a body or an electronic pen including a user's finger to press a specific position of the image information by using the image information displayed on the image information display unit 100.
  • the first input signal generated by detecting the touch signal by the first sensor plate 200 may be information that recognizes a position on a first axis of the touch screen sensor.
  • FIG. 2A is an exemplary diagram illustrating an example in which the image information display unit 100 and the first sensor plate 200 of the image display apparatus according to the present embodiment are stacked.
  • the image information display unit 100 includes a plurality of pixels and the pixels are arranged in a predetermined pattern 110 to display image information to a user.
  • the pixel is composed of respective sub-elements representing R, G and B, respectively.
  • a black matrix is formed between pixels in order to block light between sub-elements representing R, G, and B of the pixel, and to hide wiring.
  • the constant pattern 110 formed by the pixels refers to the black matrix pattern 110 formed between the pixels.
  • the first sensor plate 200 is formed of electrodes connected in a constant first pattern 210.
  • the first pattern 210 may be a grid-shaped pattern in which lines formed by a predetermined electrode cross each other.
  • the lattice shape in which lines formed in a predetermined direction intersect each other means to form a mesh-like or mesh-shaped lattice pattern as a whole.
  • the first angle of the first pattern 210 is a constant pattern 110 formed by the plurality of pixels of the image information display unit 100 as the image information display unit 100 and the first sensor plate 200 are stacked. In other words, it is preferably an angle that prevents the moiré phenomenon caused by the mutual interference between the black matrix pattern 110 and the first pattern 210.
  • the moiré phenomenon is generally a natural interference phenomenon that is formed when two independent periodic patterns are stacked at an angle.
  • the moiré pattern is seen in the form of a wave, ripple, and a small wisp that is stacked with the display image of the screen, which means that there is a variation in the intensity of light.
  • the prevention of moiré phenomenon is to prevent the mutual interference of the patterns, so that the wave forms, the ripples, and the small bundles that are stacked with the display image of the screen due to the pattern stacking. It may be to give a cross angle according to a predetermined first angle between the black matrix pattern 110 and the first pattern 210 so that the moiré pattern of the shape does not occur, or to prevent the user from recognizing the intensity variation formed by the stacking It may be. If the user does not recognize that the repeated interval of the third pattern formed by the black matrix pattern 110 and the first pattern 210 is an interval equal to or less than a resolution that defines the degree of the discernible interval by the human eye. Means.
  • the moiré phenomenon is a black matrix pattern 110 formed by the first pattern 210 of the first sensor plate 200 having the periodicity and the pixels of the image display unit. It may be caused by mutual interference due to the stacked in parallel as shown in 3a, so that the first pattern 210 of the first sensor plate 200 and the black matrix pattern 110 of the image display unit is not parallel to each other as shown in FIG. 3b. It can prevent by laminating
  • the plurality of pixels of the image information display unit 100 may be arranged to be inclined with respect to the virtual first axis (the axis indicated by x in the figure, for example, the horizontal axis of the image information display unit that is rectangular).
  • the black matrix pattern 110 is tilted according to a predetermined angle (including 0 °) with respect to the first axis so that the black matrix pattern 110 is positioned on the first axis. You can see that the array is tilted relative to.
  • the first axis is a reference line for explaining the tilt angle for preventing the moiré phenomenon between the black matrix pattern 110 and the first and second sensor plates 200 and 300.
  • the first axis of the black matrix pattern 110 coincides or is parallel to any of the linear patterns, so that the reference of the tilting angle is the black matrix pattern 110.
  • the pixel is composed of detailed elements representing R, G, and B, respectively, according to the tilted direction.
  • the first detector plate 200 is formed of electrodes connected in a constant first pattern 210 having a predetermined first angle.
  • the first angle of the first pattern 210 is a black matrix pattern 110 and the first of the image information display unit 100 as the image information display unit 100 and the first sensor plate 200 are stacked. It is preferable that the angle to prevent the generation of moiré phenomenon due to mutual interference of the pattern 210.
  • the first sensor plate 200 may be formed of an electrode connected to the first lattice-shaped first pattern 210 having a predetermined first angle ⁇ based on the first axis.
  • the second detector plate 300 is located on the upper surface of the first detector plate 200 and is a second input signal according to a user's touch input using an electrode connected to a predetermined second pattern 310 having a predetermined second angle.
  • Create Positioning on the upper surface of the first sensing plate 200 means that the second sensing plate 300 is stacked on top of the first sensing plate 200 when stacked in the order shown in FIG. 1.
  • the first input signal generated by the first sensor plate 200 according to the touch input is information recognizing a position on a first axis, for example, a horizontal axis of the touch screen sensor
  • the second sensor plate 300 when the first input signal generated by the first sensor plate 200 according to the touch input is information recognizing a position on a first axis, for example, a horizontal axis of the touch screen sensor, the second sensor plate 300.
  • the second input signal generated by is preferably information that recognizes a position on a second axis orthogonal to the first axis, for example, a vertical axis on the
  • a constant second pattern 310 having a predetermined second angle will be described in more detail with reference to FIG. 4.
  • 4A is an exemplary diagram illustrating an example in which the first sensor plate 200 and the second sensor plate 300 of the image display device according to the present embodiment are stacked.
  • the first sensor plate 200 is connected to a constant grid-shaped first pattern 210 having a first angle ⁇ with respect to the first axis x on the black matrix pattern 110. Is formed.
  • the second pattern 310 is preferably a lattice-shaped pattern in which lines formed by a predetermined electrode cross each other.
  • the lattice shape in which lines formed in a predetermined direction cross each other means a mesh-like or mesh-shaped lattice pattern as a whole.
  • the second angle of the second pattern 310 is that the second pattern 310 is the first pattern 210 so that the moiré phenomenon due to mutual interference between the first pattern 210 and the second pattern 310 does not occur. It is preferred that the angle is such that it is not arranged parallel to.
  • the second sensor plate 300 may be formed of an electrode connected to a constant lattice-shaped second pattern 310 having a predetermined second angle ⁇ with respect to the black matrix pattern 110. Do.
  • the first angle ⁇ is the black matrix pattern 110 and the first pattern 210 which are determined to prevent the moiré phenomenon caused by the stacking of the image information display unit 100 and the first sensor plate 200.
  • the second angle ⁇ is the black matrix pattern 110 and the second pattern (determined to prevent the occurrence of moiré phenomena due to the stacking of the first sensor plate 200 and the second sensor plate 300). It is preferable that it is the angle of angle 310).
  • FIG. 4B illustrates the image display apparatus according to the present embodiment including the image information display unit 100.
  • the first sensor plate 200 is stacked on the upper surface of the image information display unit 100
  • the second sensor plate 300 is stacked on the upper surface of the first sensor plate 200, so that the black matrix pattern 110 and the first pattern ( Since the 210 and the second patterns 310 are not disposed in parallel with each other, the moiré phenomenon due to the interference between the patterns does not occur. If this is expressed as Equation 1, Equation 1 below.
  • the first angle ⁇ and the second angle ⁇ determined according to the size of the image display unit are determined as shown in [Table 1]. According to the experiment).
  • the first and second angles may correspond to the black matrix pattern 110 formed by the pixels of the image information display unit 100 and the first and second detector plates 300. It is preferably determined according to the pitch, which is the line width of the electrode or the spacing between the lines. The line width or pitch of the electrode is shown in FIG. 5 and the moiré phenomenon occurs less as the line width decreases and as the pitch increases.
  • the moiré phenomenon to be solved in this embodiment is preferably satisfied when the difference between the first angle and the second angle is less than 27 °, and the first angle or the second angle is within a predetermined error angle range. It has been experimentally confirmed that it is desirable to form.
  • the error angle means a difference between an angle at which the patterns of the first and second detector plates 200 and 300 are actually formed and an angle intended for the manufacturing process, and is preferably formed within a range that does not impair the object of the present invention. Do. More specifically, when the error angle is ⁇ 5 °, it is preferable that the angle formed within this range because it is possible to prevent the moiré phenomenon.
  • FIGS. 6A and 6B illustrate cross sections of the first or second sensor plates 200 and 300 according to an embodiment of the present invention.
  • the first or second detector plates 200 and 300 according to the present exemplary embodiment are laminated on the substrates 200b and 300b and have resin layers 200a and 300a having a patterned intaglio on one surface thereof, and a conductive material in the intaglio.
  • the electrode layers 212 and 312 may be filled, and the electrodes connected to the first or second patterns 210 and 310 may be formed on the electrode layers 212 and 312.
  • the substrate 200b, 300b is preferably formed of a transparent substrate. That is, the substrate having a predetermined transparency, the transparent substrate is PET (Polyethylene Terephthalate), PI (Polymide), acrylic (Acryl), polycarbonate (PC), triacetate cellulose (TAC), polymethyl methacrylate (PMMA) , Polyether sulfone (PES), polyethylene naphthalate (PEN), or glass (glass) may be formed in the form of a transparent thin film.
  • PET Polyethylene Terephthalate
  • PI Polymide
  • acrylic Acryl
  • PC polycarbonate
  • TAC triacetate cellulose
  • PMMA polymethyl methacrylate
  • PES polyether sulfone
  • PEN polyethylene naphthalate
  • glass glass
  • the resin layers 200a and 300a are stacked on the substrates 200b and 300b and have a patterned engraving on one surface thereof.
  • a resin layer is laminated on the transparent base material, and the intaglio shape is formed by imprinting on the resin layer using an embossed mold corresponding to the desired intaglio shape. That is, an intaglio is formed in a resin layer using an embossed mold. Accordingly, one or more intaglio forms a pattern.
  • the resin layer is preferably implemented by UV (Ultraviolet) resin or thermosetting resin.
  • the electrode layers 212 and 312 are formed by filling conductive materials in the intaglio, and a sensing unit, a dummy unit, and a connection unit are formed in the electrode layer.
  • the conductive material may include copper (Cu), silver (Ag), aluminum (Al), nickel (Ni), chromium (Cr), nickel-phosphorus (Ni-P), and the like.
  • the electrode layer includes a plurality of sensing units formed of electrodes connected in the first or second patterns 210 and 310, and a connecting unit formed in the same or similar pattern as the sensing unit and connecting the sensing units. .
  • the sensing units 210a and 310a are formed of electrodes connected to one surface of the substrate in a predetermined pattern, but in the case of the connection units 210b and 310b, the sensing unit 210a. , 310a) is formed of an electrode connected in a different pattern, and as the continuity of the electrode disappears, the visibility of the sensing unit and the connecting unit increases due to the difference in the pattern.
  • the detection unit 210a or 310a or the connection unit 210b or 310b according to the related art has a problem in that visibility is increased as the edge of the electrode is connected to the edge electrode and the continuity of the electrode is disconnected.
  • the pattern of the connecting units 210b and 310b connecting the sensing units 210a and 310a and the other sensing units 210a and 310a may be the same or similar.
  • a touch screen sensor according to the present exemplary embodiment may include a plurality of sensing units 210a and 310a and an electrode connected to one surface of a substrate in a predetermined first or second pattern 210 or 310. Connection portions 210b and 310b.
  • the touch screen sensor is formed adjacent to the sensing units 210a and 310a to reduce the visibility of the sensing units 210a and 310a. ', 310'.
  • the sensing units 210a and 310a are electrodes provided to detect a user's touch signal, and are formed of a conductive material in the present invention, and the conductive material may be opaque.
  • the dummy parts 210 'and 310' are electrodes formed adjacent to or adjacent to the sensing parts 210a and 310a, as the name implies. It refers to an electrode or a combination thereof formed in a pattern having a similar shape but formed in an inactive state so as not to detect a user's touch signal. Therefore, the sensing unit and the dummy unit are formed to be electrically insulated.
  • the dummy parts 210 'and 310' are formed on the substrate.
  • the sensing units 210a and 310a and the dummy units 210 ′ and 310 ′ are formed in a straight line shape.
  • the sensing unit and the dummy unit may be formed in various patterns without being limited thereto. It is possible. For example, it is possible to form the overall shape of the sensing unit in the shape of diamond, trapezoid, rhombus and the like.
  • the electrode is an electrode provided to transmit the touch signal detected by the sensing unit to an external driving circuit (not shown), it is preferably formed at the same time when forming the sensing unit and the dummy unit on the substrate.
  • an external driving circuit not shown
  • the first or second detector plates 200 and 300 may include the sensing units 210a and 310a and the dummy units 210 'and 310' formed on the electrode layers 212 and 312. ) Further includes black layers 214 and 314 that reduce visibility of the connecting portions 210b and 310b, and the black layers 214 and 314 are formed on top of the negative electrode layers 212 and 312 or the resin layer 200a. , 300a and the electrode layers 212 and 312. Referring to FIG. 6A, it is possible to configure the black layers 214 and 314 surrounding the electrode layers 212 and 312 in the intaglio formed on the resin layers 200a and 300a to reduce visibility of the electrode layer.
  • the black layers 214 and 314 may be stacked in such a manner as to cover the electrode layers 212 and 312 inside the intaglio rather than surrounding the electrode layers. Accordingly, the touch screen sensor according to the present embodiment prevents the electrode layer from being visually recognized by using the black layer.
  • the black layer is conductive, including carbon black, and it is preferable to use a black metal material.
  • FIGS. 9 and 10 are exemplary views illustrating a layer structure in which a touch screen sensor according to the present embodiment, an image display device including the same, and first and second sensor plates 200 and 300 of the method of manufacturing the same are stacked on a substrate.
  • the first sensor plate 200 is stacked on one surface of a glass of film, and the second sensor plate 300 is stacked on the other surface of the substrate. Therefore, the image information display unit 100, the resin layer including the electrode layer of the first sensor plate 200, the base material, the resin layer including the electrode layer of the second sensor plate 300, and the window (Tempered Glass) are stacked from the lowest layer. .
  • the electrode layer of the first sensor plate 200 is stacked on one surface of the substrate, and the electrode layer of the second sensor plate 300 is preferably stacked on one surface of the other substrate. Accordingly, the image information display unit 100, the first sensor plate (the resin layer including the substrate and the electrode layer) 200, the second sensor plate (the resin layer including the other substrate and the electrode layer) 300, and the window (Tempered) Glass is laminated.
  • 9 and 10 is preferably a transparent material including a resinous film or glass as described above.
  • the cross section of the resin layer in which the intaglio is formed in the present embodiment may have a square or other intaglio shape as shown in FIGS. 6A and 6B.
  • the width of the intaglio may be 1 ⁇ m to 10 ⁇ m
  • the depth is 1 ⁇ m to 10 ⁇ m
  • the pitch between the intaglio and the intaglio may be 200 ⁇ m to 600 ⁇ m.
  • the fill factor which defines the ratio of the area occupied by the electrode in the substrate, preferably has a value between 1.4 and 7.0%. Therefore, the width of the electrode and the pitch, which is the interval between the electrodes for forming the lattice pattern, have a value in the range shown in Table 2 so as to satisfy the fill factor.
  • the Fill Factor is an electrode connected to a grid pattern (a dummy pattern or a sensing pattern) formed on one substrate, and occupies an area of an arbitrary substrate. It is defined as the ratio divided by the area, and is represented by Equation 2 below.
  • the fill factor defined as below is less than 1.4%, the transmittance increases but there is a possibility that the touch operation is not performed smoothly due to the increase of the resistance of the electrode and the reduction of the contact area of the capacitance.
  • the area occupied by this substrate is so large that the transmittance is lowered and the electrode pattern is recognized.
  • the Fill Factor preferably has a value between 1.4 and 10.0%, more preferably between 1.4 and 7.0%. It is preferable to adjust the line width and pitch suitably according to the value of the said Fill Factor.
  • a touch screen sensor, an image display device having the same, and a method of manufacturing the same include an image information display unit and a sensor plate 400.
  • the image information display unit 100 displays image information by using the plurality of pixels as described above.
  • the detector plate 400 is positioned on an upper surface of the image information display unit 100 and generates a signal according to a user's touch input using electrodes connected in a predetermined pattern having a predetermined third angle. Unlike the image display device according to the exemplary embodiment described above, it is also possible to implement the sensor plate 400 for sensing a touch input as one layer.
  • the detector plate 400 generates an input signal according to a user's touch input.
  • the position information of the first and second axes, respectively is generated as an input signal.
  • the sensor plate 400 is disposed on both the first and second axes. It is preferable to generate the position information (x, y). Accordingly, the sensing unit generating position information in the first axial direction and the sensing unit generating position information in the second axial direction are alternately disposed and electrically insulated.
  • the predetermined third angle is a constant black matrix pattern 110 formed by the plurality of pixels of the image information display unit 100 as the image information display unit 100 and the sensor plate 400 are stacked.
  • the third angle is the image information display unit 100. Is defined as the angle ⁇ formed between the black matrix pattern 110 and the third pattern 410 of the sensor plate 400.
  • the third angle ⁇ is an angle with respect to the black matrix pattern 110 formed by the pixels of the image information display unit 100 and a line width of the electrode of the sensor plate 400 or It is preferable to determine it according to the pitch.
  • the sensor plate 400 of the image display apparatus has a feature corresponding to the first sensor plate 200 or the second sensor plate 300 described above, a description thereof will be omitted since it is duplicated.
  • FIG. 13 is a flowchart illustrating a touch screen sensor, an image display device including the same, and a manufacturing method thereof, according to an exemplary embodiment.
  • the manufacturing method of the image display apparatus includes an image information display unit forming step S100, a first sensor plate forming step S200, and a second sensor plate forming step S300.
  • a method of forming a video display device such as a diode
  • a method of forming a video display device is a step of arranging a plurality of pixels composed of respective sub-elements representing R, G, and B in a predetermined pattern as described above. Therefore, the black matrix pattern 110 is formed between the pixels in the image information display forming step (S100).
  • the first sensor plate forming step (S200) is performed based on a user's touch input using an electrode located on an upper surface of the image information display unit 100 and connected to a predetermined first pattern 210 having a predetermined first angle.
  • a step of constructing a substrate for generating an input signal the black matrix pattern 110 and the first pattern of the image information display unit 100 as the image information display unit 100 and the first detector plate 200 are stacked.
  • a first angle determining step S210 for determining a first angle such that the moiré phenomenon due to mutual interference of the 210 does not occur.
  • the first angle when the first angle is provided between the directions of the pattern as shown in FIG. 2A or 2B as described above, the first angle means the angle ⁇ .
  • the first sensor plate forming step (S200) forms an intaglio in the resin layer using the first angle determined in the step of determining the first angle, and fills the conductive material to form an electrode.
  • the first sensor plate forming step S200 is described in detail.
  • the first sensor plate forming step S200 includes a resin layer applying step S220, an intaglio forming step S230, and an electrode layer forming step. (S240), and forming a black layer (S250).
  • a resin layer is laminated on a substrate, and a resin film or glass may be used as the substrate.
  • the substrate is preferably formed of a transparent substrate. That is, the substrate having a certain transparency, it may be formed in the form of a transparent thin film using at least one of the above-described materials.
  • the thickness of the substrate is suitably in the range of 25 to 250 ⁇ m, and the light transmittance of 80% or more, more preferably 90% or more, to improve luminance.
  • the intaglio forming step S230 imprints the resin layer into a mold to form a patterned intaglio.
  • the sensing unit, the dummy unit and the connecting unit are formed through the electrode layer forming step S240 in which the conductive material is filled with respect to the intaglio formed in the intaglio forming step
  • the intaglio forming step S230 is performed by the electrode of the touch screen sensor.
  • the structure is engraved.
  • the intaglio formed in this embodiment is an intaglio formed in a predetermined first pattern 210 according to the first angle determined in the step S210 of determining the first angle.
  • Electrode layer forming step (S240) is to fill the conductive material in the intaglio formed in the intaglio forming step, the sensing unit, the dummy portion and the connecting portion is formed in the electrode layer filled with the conductive material in the electrode layer forming step.
  • the conductive material may include copper (Cu), silver (Ag), aluminum (Al), nickel (Ni), chromium (Cr), nickel-phosphorus (Ni-P), and the like.
  • the sensing unit and the dummy unit may be formed at the same time, and may be formed of the same conductive material, but as described above, the sensing unit is an electrically active electrode for sensing and transmitting a touch signal, and the dummy unit is an electrically inactive electrode. to be.
  • the black layer forming step S250 is conductive and is stacked on top of the intaglio electrode layer formed in the electrode layer forming step.
  • the black layer forming step may reduce the visibility of the electrode layer by stacking the black layers as described above with reference to FIG. 6B. If the black layers 214 and 314 are formed to surround the electrode layers 212 and 312 as shown in FIG. 6A, the black layer forming step S250 is performed between the intaglio forming step S230 and the electrode layer forming step S240. Is performed on.
  • the second sensor plate forming step S300 is performed by applying the same resin layer forming step S320 to the first sensor plate forming step S200, intaglio forming step S330, electrode layer forming step S340, and black layer forming step (S300). S350).
  • the second sensor plate forming step (S300) also has a moiré phenomenon caused by mutual interference between the first pattern 210 and the second pattern 310 as the first sensor plate 200 and the second sensor plate 300 are stacked.
  • a second angle determining step S310 for determining a second angle not to occur.
  • the second angle determining step S310 may determine the second angle so that the moiré phenomenon due to the mutual interference between the black matrix pattern 110 and the second pattern 310 does not occur.
  • the second angle refers to the angle ⁇ between the directions of the patterns as shown in FIG. 4.
  • the intaglio formed in the intaglio forming step (S230) of the second sensor plate forming step (S300) is an intaglio formed in a constant second pattern 310 according to the second angle determined in the step (S310) of determining the second angle. Is preferably.
  • the first angle ⁇ determined in the first determination step S210 is an angle determined for generation of the moiré phenomenon due to the stacking of the image display unit and the first sensor plate, and the second angle determination step S310.
  • the second angle ⁇ determined at is a predetermined angle, for example, the first sensor plate 200 and the occurrence of moiré phenomenon due to the stacking of the first sensor plate 200 and the second sensor plate 300 is not recognized.
  • the deviation of the amount of light is a predetermined angle maintained below a predetermined value.
  • the first angle ⁇ and the second angle ⁇ determined according to the size of the image display unit are determined as shown in Table 1 above.
  • the first angle or the second angle determined in the first and second angle determination steps S210 and S310 is an angle with respect to the black matrix pattern 110 of the image information display unit 100 and the first and second angles. It is preferably determined according to the pitch, which is the line width of the electrodes of the sensor plates 200 and 300 or the spacing between the lines. The line width or pitch of the electrode is shown in FIG. 5, and since the moire phenomenon occurs less as the line width decreases and as the pitch increases, the first or second angle is preferably an angle determined accordingly.
  • the fill factor which defines the ratio of the area of the electrode to the area of the substrate, preferably has a value between 1.4 and 7.0%. The description thereof will be omitted since it overlaps with the description of the electrode of the image display apparatus described above.
  • the touch screen sensor according to another embodiment of the present invention includes a first sensor plate 200 and a second sensor plate 300.
  • the first detector plate 200 is positioned on the upper surface of the image information display unit 100 and is connected to a user's touch input using an electrode connected to a predetermined first pattern 210 having a predetermined first angle.
  • a first input signal is generated
  • the second sensor plate 300 is positioned on the upper surface of the first sensor plate 200 and connected to a predetermined second pattern 310 having a predetermined second angle.
  • the first and second detector plates 200 and 300 are the same as the first and second detector plates of the above-described touch screen sensor, an image display device including the same, and a manufacturing method thereof, and thus detailed description thereof will be omitted. do.
  • a touch screen sensor is located on an upper surface of an image information display unit 100 displaying image information using a plurality of pixels and connected to a predetermined pattern having a predetermined angle. It includes a detector plate 400 for generating a signal according to the user's touch input. Since the detection plate of the touch screen sensor according to the present embodiment has been described in the detection plate 400 of the image display device according to the above-described embodiment, a description thereof will be omitted since it is duplicated.
  • the manufacturing method of the touch screen sensor includes a first sensor plate forming step, the second sensor plate forming step.
  • the manufacturing method of the touch screen sensor refers to the steps of forming the first sensor plate and the second sensor plate among the above-described touch screen sensor, an image display apparatus having the same, and a manufacturing method of the manufacturing method, and thus, FIG. It demonstrates with reference to 13.
  • the first sensor plate 200 In the forming of the first sensor plate S200, the first sensor plate 200 generating a first input signal according to a user's touch input using an electrode connected in a predetermined first pattern 210 having a predetermined first angle.
  • the second sensor plate forming step (S300) is a second sensing for generating a second input signal according to the user's touch input using the electrode connected in a predetermined second pattern 310 having a predetermined second angle
  • the substrate 300 is formed and positioned on an upper surface of the first sensor plate 200 formed in the first sensor plate forming step S200.
  • the above-described first and second sensor plate forming steps S200 and S300 may include forming the first and second sensor plate forming steps S200 and S300 of the above-described touch screen sensor, an image display device including the same, and a manufacturing method of the same. As the same as the detailed description thereof will be omitted because it is duplicated.

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  • Theoretical Computer Science (AREA)
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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Position Input By Displaying (AREA)
PCT/KR2013/001490 2012-02-29 2013-02-25 터치스크린 센서, 이를 구비하는 영상 표시 장치 및 그 제조 방법 WO2013129810A1 (ko)

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