KR20180069283A - Multi point touch screen pannel - Google Patents

Abstract

The present invention relates to a multi-point touch screen panel. According to an embodiment of the present invention, the multi-point touch screen panel comprises: multiple touch sensors of a wobble pattern generating a signal according to contact or access of an external object; multiple signal lines electrically connected to the multiple touch sensors; a touch drive IC receiving the signal; and multiple muxes selectively connecting one among the multiple signal lines to the touch drive IC. Also, other embodiments are possible. A size of the touch drive IC can be reduced, thereby stably mounting the touch drive IC on a flexible circuit board such as a chip in flexible printed circuit (COF) or a flexible printed circuit (FPC).

Description

MULTI POINT TOUCH SCREEN PANEL < RTI ID = 0.0 >

The present invention relates to a multi-point touch screen panel capable of detecting multi-points touched, for example, by the user's finger or an electronic pen.

2. Description of the Related Art Generally, a touch screen panel includes various types of display devices 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) Lt; / RTI > The touch screen panel is one of input devices for generating a signal corresponding to a corresponding position when an external object such as a user's finger or an electronic pen touches or approaches.

The touch screen panel is used in a wide variety of fields such as a small portable terminal, an industrial terminal, a DID (Digital Information Device), and the like. The touch screen panel includes various detection methods such as a resistance method and an electrostatic method . Hereinafter, the electrostatic touch screen panel will be described in detail.

1 is a perspective view showing an example of a touch screen panel. 1, a transparent conductive film is formed on the upper and lower surfaces of a transparent substrate 2 made of plastic or glass, and a voltage applying metal electrode 4 is formed on each of four corners of the transparent substrate 2 . The transparent conductive film is formed of a conductive transparent material such as ITO (Indium Tin Oxide) or ATO (Antimony Tin Oxide). The metal electrodes 4 formed at four corners of the transparent conductive film are formed by printing with a conductive metal having a low resistivity such as silver (Ag).

A resistor network is formed around the metal electrodes 4, and the resistor network is formed in a linear pattern so as to uniformly transmit a control signal to the entire surface of the transparent conductive film. A protective film is coated on the upper part of the transparent conductive film including the metal electrode 4.

The touch screen panel is spread over the front surface of the transparent substrate 2 when an AC voltage of a high frequency is applied to the metal electrode 4. At this time, an external object such as a user's finger 8 or an electronic pen, When a transparent conductive film on the upper surface of the transparent substrate 2 is touched, a certain amount of current is absorbed by the external object, and a current sensor included in the controller 6 senses a change in current, The touch point is recognized. However, since the touch screen panel as shown in FIG. 1 detects the magnitude of the minute current, it is difficult to simultaneously recognize the high-priced and touched multi-points.

2 is a view showing another example of a touch screen panel. Referring to FIG. 2, the touch screen panel includes a touch sensor 5a in the horizontal direction, a touch sensor 5b in the vertical direction, and a touch driver IC 7 for analyzing the touch signal. The touch screen panel detects the magnitude of a capacitance formed between the touch sensor 5 and the finger 8, for example, and detects the magnitude of a capacitance between the touch sensor 5a in the horizontal direction and the touch The sensor 5b is sequentially scanned to detect the signal, so that the touched multi points can be recognized simultaneously.

However, when the touch screen panel is mounted on a display device such as an LCD or the like, it is difficult to detect a signal due to noise. For example, the LCD uses a common electrode to which a common voltage Vcom is applied to the liquid crystal, and the common voltage is affected by the pixel voltage applied to the liquid crystal. Accordingly, when the common voltage fluctuates unstably, the common voltage Vcom of the common electrode acts as noise at the detection of the touch point.

Also, by scanning the horizontal direction touch sensor 5a and the vertical direction touch sensor 5b to obtain the touch signal, the scan signal affects the common voltage, thus causing a problem of image quality failure.

3 is a cross-sectional view of an example in which a touch screen panel is mounted on a display device. 3, a liquid crystal is sealed between a TFT substrate 205 on the lower side and a color filter 215 on the upper side to form a liquid crystal layer 210. In order to encapsulate the liquid crystal, the TFT substrate 205 and the color filter 215 are bonded to each other by a sealant 230 at an outer frame portion. Although not shown, a polarizing plate is attached to the upper and lower sides of the liquid crystal panel, and a back light unit (BLU) and the like are provided.

As shown in Fig. 3, a touch screen panel is provided on the upper portion of the display device 200. Fig. The touch screen panel has a structure in which a touch sensor 5 is mounted on an upper surface of a substrate 1. [ On the substrate 1, a protective panel 3 for protecting the touch sensor 5 is attached. The touch screen panel is adhered to an edge of the display device 200 by an adhesive member 9 such as DAT (Double Adhesive Tape) and an air gap 9a is formed between the touch screen panel and the display device 200 .

For example, as shown in FIG. 3, when a finger touch occurs, a touch capacitance Ct is formed between the finger 8 and the touch sensor 5. A common electrode capacitance Cvcom is also formed between the touch sensor 5 and the common electrode 220 formed on the lower surface of the color filter 215 of the display device 200. In the touch sensor 5, Unknown parasitic capacitance (Cp) due to capacitance coupling or manufacturing process factors also works.

Fig. 4 is an equivalent circuit diagram for detecting the touch capacitance of Fig. 3; Fig. Referring to FIG. 4, the touch screen panel detects a touch by detecting a change amount of a touch capacitance Ct. At this time, the common electrode capacitance Cvcom and the parasitic capacitance Cp act as noise in the detection of the touch capacitance Ct.

Since the common electrode capacitance Cvom may be ten times larger than the touch capacitance Ct, for example, the common electrode capacitance Cvcom may cause the touch signal to be distorted due to the vibration of the common electrode capacitance Cvcom, .

5 is a diagram illustrating an embodiment of a touch screen panel capable of reducing the common voltage Vcom. Referring to FIG. 5, the touch screen panel may include, for example, a touch sensor 10, a signal line 22, and a touch driver IC 30. The touch drive IC 30 includes a driving unit 31 having a mux (or a multiplexer, hereinafter referred to as a mux). The touch drive IC 30 includes a chip on flexible (COF) Printed circuit (FPC), a flexible printed circuit (FPC), or the like.

The touch sensor 10 is electrically connected to the touch driver IC 30 through the signal line 22 and the mux of the driver 31 included in the touch driver IC 30 is connected to the signal line 22 The number of input terminals corresponding to the number of input terminals. For example, if the number of the touch sensors 10 is 400, the number of the signal lines 22 connected to the touch sensor becomes 400, and the number of input terminals of the mux to which the signal lines are connected becomes 400.

In order to improve the touch sensitivity of the touch screen panel, when the number of the touch sensors 10 increases, the number of the signal lines 22 and the number of input terminals of the MUX also increase. In this case, since the size of the mux increases, the size of the touch driver IC 30 increases.

This makes it difficult to mount the touch-sensitive IC 30 on a flexible circuit board such as a COF or FPC. Also, since the number of signal lines connected to the input terminal of the mux increases, interference noise generated between the signal lines increases.

The present invention can efficiently arrange a plurality of muxes on a connection path between, for example, a signal line of each touch sensor and a touch drive IC mounted on a flexible circuit board to reduce the size of the touch drive IC, It is another object of the present invention to provide a multi-point touch screen panel capable of reducing the number of muxes and reducing interference noise occurring between signal lines.

A multi-point touch screen panel according to an embodiment of the present invention includes: a plurality of touch sensors of a wobble pattern for generating a signal according to contact or approach of an external object; A plurality of signal lines electrically connected to the plurality of touch sensors; A touch drive IC for receiving the signal; And a plurality of muxes for selectively connecting any one of the plurality of signal lines to the touch driver IC.

A multi-point touch screen panel according to an embodiment of the present invention includes: a plurality of touch sensors of a wobble pattern for generating a signal according to contact or approach of an external object; A plurality of signal lines electrically connected to the plurality of touch sensors; A touch drive IC for receiving the signal; And a plurality of muxes for selectively connecting at least one of the plurality of signal lines to the touch drive IC, wherein the plurality of touch sensors are arranged in a matrix of a plurality of columns and rows, The middle odd-numbered mux is connected to the signal lines of the touch sensors corresponding to at least two odd-numbered columns, and the odd-numbered mux among the plurality of muxes is connected to the signal lines of the touch sensors corresponding to at least two odd- Lt; / RTI >

A multi-point touch screen panel according to an embodiment of the present invention includes: a plurality of touch sensors of a wobble pattern for generating a signal according to contact or approach of an external object; A plurality of signal lines electrically connected to the plurality of touch sensors; A touch drive IC for receiving the signal; And a plurality of muxes for selectively connecting at least one of the plurality of signal lines to the touch drive IC, wherein the plurality of touch sensors are arranged in a matrix of a plurality of columns and rows, The middle odd-numbered mux is connected to the signal lines of the touch sensors corresponding to at least two odd-numbered columns belonging to the left and right regions with respect to the vertical center line of the matrix, and the odd- And may be connected to the signal lines of the touch sensors corresponding to at least two odd-numbered columns belonging to the left and right regions with respect to the vertical center line of the matrix.

According to the multi-point touch screen panel according to the embodiment of the present invention, since the size of the touch drive IC can be reduced, there is an effect that the touch drive IC can be stably mounted on a flexible circuit board such as COF or FPC .

In addition, since the number of signal lines to be input to the mux can be reduced, interference noise generated between the signal lines can be minimized and the multi-point touch sensitivity can be improved. Also, the number of muxes can be effectively reduced.

1 is a perspective view showing an example of a touch screen panel.
Fig. 2 shows another example of a touch screen panel. Fig.
3 is a cross-sectional view of an example in which a touch screen panel is mounted on a display device;
Fig. 4 is an equivalent circuit diagram for detecting the touch capacitance of Fig. 3; Fig.
5 illustrates an embodiment of a touch screen panel capable of reducing the common voltage Vcom;
6 illustrates a multi-point touch screen panel in accordance with an embodiment of the present invention.
7 is a view illustrating a wobble pattern touch sensor according to an embodiment of the present invention.
Figure 8 is an illustration of an M x N matrix touch screen panel in accordance with an embodiment of the present invention.
9A and 9B are enlarged views of a wobble pattern touch sensor according to an embodiment of the present invention.
10 is a view schematically illustrating a shape change of a wobble pattern with respect to a touch sensor according to an increase in resolution of an embodiment of the present invention.
11 is a diagram illustrating columns of a touch sensor in an embodiment of the present invention.
12 is a diagram illustrating columns of a touch sensor including an iso-resistive region of an embodiment of the present invention.
Figure 13 illustrates a partial configuration of the multi-point touch screen panel of Figure 6;
Figure 14 illustrates a multi-point touch screen panel according to another embodiment of the present invention.
FIG. 15 illustrates a partial structure of a multi-point touch screen panel according to another embodiment of the present invention; FIG.
FIG. 12 illustrates a partial configuration of a multi-point touch screen panel according to another embodiment of the present invention; FIG.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings and embodiments. The display device referred to in the present invention means any one of LCD, PDP, and OLED, or any other means for displaying other images. Among the display devices listed above, the LCD requires a common voltage (Vcom) for driving the liquid crystal. For example, in a small / medium-size LCD for a portable device, a common in-line voltage of a common electrode is used for one or a plurality of gate lines alternately in order to reduce current consumption.

As another example, a large LCD uses a dot inversion driving method in which the common voltage of the common electrode has a constant DC level. As another example, in the case of the transverse electric field mode LCD, the common electrode is formed in a part of the area of the LCD TFT substrate, and an image is displayed by a line-in version or a dot-inversion driving method. In the transverse electric field mode LCD, a back ground is formed commonly in the entire color filter exposed to the outside through the back ITO, and grounded to ground signal for ESD (Electrostatic Discharge) interception.

In the present invention, in addition to the electrode to which the common voltage Vcom is applied as described above, all the electrodes that commonly function in the display device are referred to as " common electrodes ", and alternate voltage, DC voltage, The voltage in the form of alternating in frequency will be referred to as " common voltage ".

The present invention detects a noncontact touch input of a finger or a touch input means having similar electrical characteristics. Here, the term " noncontact touch input " means that a touch input means such as a finger or the like touch input is performed with the substrate being spaced apart from the touch sensor by a predetermined distance. The touch input means can be brought into contact with the outer surface of the substrate. In this case, however, the touch input means and the touch sensor maintain the non-contact state.

Accordingly, the touching action of a finger with respect to the touch sensor can be expressed by the term " approach ". On the other hand, since the finger may be in contact with the outer surface of the substrate, the touching action of the finger with respect to the substrate may be expressed by the term " contact ". As used herein, the terms " approach " and " contact "

The components such as " to " described below are aggregates of unit function elements that perform specific functions. For example, when an amplifier of a signal is a unit functional element and an amplifier or signal converter The aggregate can be called a signal transformer. Also, " part " may be included in a larger element or " part, " or may include smaller elements and " parts. &Quot; Also, " part " may have its own CPU.

In the following drawings, thicknesses and regions are enlarged to clearly show layers and regions. Like reference numerals are used for like parts throughout the specification. Whenever a portion of a layer, region, substrate, or the like is referred to as being "on" or "over" another portion, it includes not only the case where it is "directly on" another portion, but also the case where there is another portion in between. Conversely, when a part is "directly over" another part, it means that there is no other part in the middle.

Further, the " signal " described in this specification refers to a voltage or a current collectively unless otherwise specified. In the present specification, the term " capacitance " refers to a physical size and is used in the same sense as " capacitance ". On the other hand, a " capacitor " refers to an element having a capacitance that is a physical size. Capacitance may be created by design values and processes, or indirectly as if it were created naturally between two parallel signal lines at any distance. In the present specification, both the directly formed capacitor and the indirectly formed capacitor are referred to as " capacitors ".

In the present specification, the term " forcing "means that the level of a signal which has already been maintained is changed or connected to a signal in a floating state. For example, the signal applied to the on / off control terminal of the switching element may be used to mean that the existing low level voltage is changed to a high level, Off control terminal of the switching element of the switching element in order to apply a certain voltage for turning on / off the switching element.

In the present invention, " driving back phenomenon " or " driving back " is used in the same meaning and is abbreviated to "D / B " In the present invention, the touch drive IC (Touch Drive IC) is shortened to TDI. Further, in the present invention, when a touch is not generated, a voltage by D / B is detected, and when a touch is generated, a voltage by D / B is detected and by using the relationship of two voltages, Since the contact area of the touch means is determined, the meaning of detecting the voltage due to the D / B phenomenon and the meaning of detecting the touch signal are used equally

6 is a diagram illustrating a multi-point touch screen panel according to an embodiment of the present invention. 6, the multi-point touch screen panel 300 may include a touch sensor 10, a signal line 22, and a touch drive IC 30, For example, on a flexible circuit board 96, such as a COF or FPC.

The touch sensor 10 is a conductive transparent material such as ITO (Indium Tin Oxide) or ATO (Antimony Tin Oxide), and is formed of a dot-shaped touch pad, Transparent conductive metal material having a low resistivity, for example, a wobble pattern or the like.

Similarly, the signal line 22 may be formed of a conductive transparent material such as ITO or ATO, or a non-transparent conductive metal material having a low resistivity such as silver (Ag). Here, the touch sensors of various wobble patterns according to the present invention will be described later in detail with reference to FIG. 7 to FIG.

Further, the signal line may be disposed in a visible region and an invisible region of the display substrate, the signal line in the knob region may be a conductive transparent material, and the signal line in the invisible region may be a non-transparent metal material. Here, the conductive transparent material and the non-transparent conductive metal material of the signal line are electrically connected and connected to each other by, for example, various kinds of conductive bonding materials (for example, a Ag-epoxy conductive adhesive or a Sn- .

The touch sensor 10 may be referred to as various names such as a touch pad or a sensor pattern and the signal line 22 may be referred to as various names such as a sensor signal line or a touch trace And the touch drive IC 30 may be referred to as various names such as a controller or a processor. Further, the wobble pattern may be referred to as any various names such as, for example, a saw-tooth pattern and the like.

In the multi-point touch screen panel 300, for example, several hundred (for example, 400) or more touch sensors may be arranged in various arrays. 6, sixteen touch sensors 10 are arranged at the respective coordinate points where the four columns C1 to C4 intersect with the four rows R1 to R4, Will be described in detail with reference to an embodiment of a simple structure in which the elements are arranged in a matrix form.

The touch sensor 10 can generate a touch signal corresponding to the contact or approach of an external object such as a human finger or an electronic pen and the signal line 22 is connected to the touch sensor 10 and the touch drive IC 30 and the touch drive IC 30 can receive the touch signal generated from the touch sensor through the signal line 22. [

The multi-point touch screen panel 300 can be divided into a visible region 90 and an invisible region 92 of the display substrate 91 as shown in FIG. For example, the visible region 90 may be a central portion allocated to view a screen displayed on a display device (e.g., LCD), and the non-visible region 92 may be an edge of the display device, And may be a remaining outer portion other than the visible region 90. [ The display substrate 91 may be, for example, a glass substrate or a light transmitting substrate.

The touch sensor 10 and the signal line 22 are disposed in the visible region 90 and a part of the signal line 22 directed to the touch driver IC 30 is disposed in the non- .

According to an embodiment of the present invention, a plurality of muxes may be arranged in the non-visible region 92. [ For example, as shown in FIG. 6, first through fourth muxes (mux1, mux2) to which the signal lines of the touch sensors disposed in the visible region 90 are connected are formed in the lower end portion of the non- To 4 may be arranged.

Herein, the plurality of muxes 1-4 may be disposed at the lower end portion of the non-visible region 92, or may be arranged at various other portions, for example, at a top portion or a side portion of the non- Lt; / RTI > The mux included in the driving unit 31 of the touch drive IC 30 may be deleted. Accordingly, the size of the touch driver IC 30 can be reduced, and the touch driver IC 30 can be mounted on the flexible circuit board 96 more easily.

7 is a diagram illustrating a wobble pattern touch sensor according to an embodiment of the present invention. Referring to FIG. 7, the touch sensor may be formed in a wobble pattern, and the wobble pattern may be referred to as various names such as, for example, a saw-tooth pattern.

The touch sensor 200-1 or 200-2 is formed by repeatedly arranging the wobble patterns connected to each other in a rhombic (or diamond) shape so as to be engaged with each other in a state of being inverted 180 degrees in phase with each other .

As shown in FIG. 7A, each column of the touch screen panel may have a wobble pattern of 200-1 and a wobble pattern of 200-2 continuously arranged in the longitudinal direction, One sensor signal line is connected to the touch sensor of the touch sensor 200-1 or 2000-2.

As described above, the two wobble patterns are repeatedly arranged in the longitudinal direction in the direction of the arrow 210 to form a single column. The plurality of columns formed in the same manner are repeatedly arranged to form a touch screen panel according to an embodiment of the present invention.

Specifically, one pair of the wobble patterns 200-1 and 200-2 can be repeatedly arranged in a shape in which the vertexes are meshed with each other to form one column. Each wobble pattern may be formed of a transparent conductive material, and the touch capacitance Ct may be generated by approaching or touching the touch input means. The touch capacitance generated by the approach or touch of the touch input means is in the range of several fF (Femto Farad) to several tens uF (Micro Fara).

The sensor signal line as well as the wobble pattern 200-1 or 200-2 in the embodiment of the present invention may also be formed of a transparent conductive material. One embodiment of the transparent conductive material may be any one of ITO, CNT, ATO, or IZO. The wobble pattern 200-1 and the wobble pattern 200-2 are different touch sensors, and different sensor signal lines are connected to transmit different touch signals to the touch drive IC. .

The touch driver IC refers to a device that detects whether a touch is made or a touch point based on a touch signal received through a sensor signal line. The touch driver IC may be disposed in the outer edge region of the touch screen panel. For example, the position of the touch driver IC may be different depending on the use or size of the touch screen panel.

As shown in FIG. 7B, each of the wobble patterns 200-1 and 200-2 may be formed by connecting at least one rhombic shape to each other. For example, the wobble pattern of 200-1 is formed by connecting half of the rhombic pattern 240-1, 240-2, and 240-3, and the wobble pattern of 200-2 is formed by connecting rhombic patterns 240-4 , 240-5, and 240-6 may be connected to each other.

The wobble patterns shown in FIGS. 7A and 7B are only examples, and the number of rhombic patterns forming the wobble pattern may vary depending on the use or size of the touch screen panel. In FIG. 7B, each of the wobble patterns is shown to be formed by connecting 2.5 rhombic shapes, but it is also possible that the rhombic patterns constituting the wobble pattern may increase to 3, 3.5, 4, or 4.5 have.

Here, the wobble pattern in the embodiment of the present invention may be formed not only in the rhombic shape, but also in a combination of other shapes (e.g., diamond or oval). However, in the case of the rhombic shape as in the embodiment of the present invention, the touch position detection is easier due to the area difference between the 200-1 wobble pattern and the 200-2 wobble pattern, as shown in circle 250 in Fig. There is an advantage that can be done.

The maximum width of the rhombic shape is less than a unit pi (e.g., 1 mm), which means that the diameter of the circle 250 or 260 in Figure 7a is smaller than the unit pi. The capacitive touch screen In the panel, the touch point is detected by using a voltage difference between a touch occurrence point received at the corresponding point and a non-touch point when the touch is generated at the circle (250 or 260).

8 is an exemplary diagram of an M x N matrix touch screen panel according to an embodiment of the present invention. Referring to FIG. 8, a touch driver IC 340 for determining whether or not a touch is performed is disposed on the downstream side opposite to the direction of the arrow 210 in FIG. In Fig. 8, the wobble pattern of the touch sensor may have the same structure as the wobble pattern 200-1 or 200-2 of Fig.

Although the touch sensor of Fig. 8 is shown as being disposed at a predetermined interval between touch sensors 300-1 and 3000-2 of adjacent wobble patterns, it is considered that the overall change of the touch sensor size And the change of the sensor signal line, and the gap is not necessarily required between touch sensors of neighboring wobble patterns that form one column precisely.

8, the size of the wobble pattern touch sensor 300-1 arranged at the longest distance from the touch drive IC is equal to the size of the wobble pattern touch sensor 300- n).

In the embodiment of the present invention, the overall size of the touch sensor of the wobble pattern may be larger according to the direction of the arrow 210. That is, the size of the touch sensor 300-n closest to the touch driver IC 340 may be smaller than the distance of the touch sensor 300-1.

For example, when the overall size of the touch sensor is increased, it means that the width of the rhombus shape forming the wobble pattern is increased, and the number of rhombus shapes is increased. The width of the rhombic shape may be limited to a unit pi (for example, 1 mm) for high resolution, and a larger width of the wobble pattern touch sensor may mean that the number of rhombic shapes increases.

The width of the sensor signal line 320 may gradually increase as the size of the touch sensor gradually increases according to the distance from the touch driver IC 340. Although not clearly shown in FIG. 8, the width of the sensor signal line 320-1 may be larger than the width of the sensor signal line 320-n. Here, the change in the size of the touch sensor and the change in the width of the sensor signal line are intended to compensate for the resistance loss occurring in the process of transmitting the touch signal along the sensor signal line.

9A and 9B are enlarged views of a wobble pattern touch sensor according to an embodiment of the present invention. For example, the shape of each side of a wobble pattern and the shape of a fine pattern for improving the visibility of the touch sensor are shown.

Referring to Figs. 9A and 9B, the wobble pattern 200-1 and the wobble pattern 200-2 shown in Fig. The touch sensor and the sensor signal line of the present invention may be formed by repeated patterning of a plurality of fine patterns 440 having the same shape for improving the visibility. For example, instead of depositing a transparent conductive material on the internal area of one or 0.5 rhombs, it is patterned with fine patterns 440-1, 440-2, 440-3, or 440-4 as shown in Fig. 9B .

For example, a rhombic shape or a wobble pattern is formed by repeatedly removing a transparent conductive material with fine patterns 440-1, 440-2, 440-3, or 440-4 having an inequality shape (<or>). The visibility considered in the present invention refers to the ability to prevent the user from recognizing that the wobble pattern touch sensor 200-1 or 200-2 is formed on the touch screen panel.

According to an embodiment of the present invention, each side of the rhombic shape may be formed by zigzag shape 410 by repetitive patterning of the fine pattern of FIG. 9B, and each side 410 of rhombic shape may be formed by removing the transparent conductive materials And may be formed by connecting the fine patterns so as to extend along the sides of the rhombus. Each side of the rhombic shape may form a closed-loop area (i.e., rhombic shape) by connecting at least one or more fine patterns repeatedly patterned (i.e., conductive material removed).

In the embodiment of the present invention, features related to the improvement of visibility will be described in more detail below, but in FIG. 9B, repeated patterning of the fine patterns 440-1, 440-2, 440-3 or 440-4 causes each side of the rhombus to be zigzag It is clear that it has a shape.

In the embodiment of the present invention, the fine pattern is composed of a combination of the right inequality 440-1 or 440-4 and the left inequality 440-2 or 440-3, and the angle of incidence in each inequality May be determined in relation to other properties of the touch screen panel, such as light transmittance.

10 is a diagram schematically illustrating a shape change of a wobble pattern with respect to a touch sensor according to an increase in resolution of an embodiment of the present invention. Referring to FIG. 10, when the resolution of the touch screen panel is increased, it is possible to easily achieve a desired range by reducing the size of the rhombus shape and increasing the number of rhombus shapes included in the wobble pattern.

The touch sensor 200 shown in FIG. 10A has a shape in which a pair of wobble patterns are interdigitated with each other in a state where their phases are inverted by 180 degrees, and the wobble pattern is, for example, 2.5 (B) of FIG. 10, and may be formed into 3.5 rhombic shapes. Further, as shown in FIG. 10 (c), it may be constituted by 4.5 rhombic shapes It can be.

10 (a) to 10 (c) illustrate a wobble pattern touch sensor based on one column of the touch screen panel. The width of one column does not change, 10 (b) has a larger number of rhombs and a reduced width, so that it is possible to form a touch screen panel having a higher resolution, and FIG. 10 (c) It is possible to form a touch screen panel of higher resolution than the touch screen panel of the shape shown in Figs. 10 (a) and 10 (b).

The resolution is increased by changing from (a) to (c) in FIG. 10 (a) to (c), but the shape of the rhombus of the present invention remains unchanged and the constant shape remains intact, Is not increased. This is because the number of touch sensors to which the sensor signal lines are connected is constant. Since the embodiment shown in Figs. 10 (a) to 10 (c) includes only two wobble patterns, only two sensor signal lines are required.

According to the touch screen panel having a high resolution according to the embodiment of the present invention, as the resolution increases, the number of sensor signal lines is not changed, and the position of the sensor signal line is not changed. This is because the wobble pattern is maintained as it is, but the width of the rhombic shape constituting the wobble pattern is reduced, thereby increasing the number of rhombic patterns.

In the embodiment of the present invention, even if the resolution of the touch screen panel is increased, the shape of the wobble pattern is not changed and the number of sensor signal lines is not increased.

11 is a view illustrating the columns of the touch sensor of the embodiment of the present invention. Referring to FIG. 11, two columns among a plurality of columns M and a plurality of rows N are shown. The pair of touch sensors shown in the first column 610 may be a wobble pattern of 650-1 and the pair of touch sensors shown in the second column 620 may be formed of a wobble pattern of 650-2.

The touch sensor 650-1 and the touch sensor 650-2 shown in FIG. 11 have a shape in which a pair of wobble patterns having the same shape are engaged with each other up and down in a state in which the phases are inverted by 180 degrees from each other. 11 shows an area 630 where a sensor signal line connected to the touch sensor of the first column is disposed and a region 640 where a sensor signal line connected to the touch sensor of the second column is disposed.

According to the embodiment of the present invention, as shown in FIG. 11, the wobble pattern 610 of the first column and the wobble pattern 620 of the second column may be staggered from each other so as to have a predetermined offset . The fact that the first column 610 and the second column 620 shown in FIG. 11 are arranged to have a predetermined offset will be described in detail in comparison with the touch sensor of FIG.

The patterns 300-1, 300-2, or 300-n in FIG. 8 may correspond to the patterns 650-1 or 650-2 in FIG. As described above, the spacing is not necessarily required between the respective patterns in Fig. 8, but the patterns can be continuously connected and arranged as in Fig. As shown in FIG. 8, each touch sensor is arranged in a matrix form, and the touch patterns in the first column and the remaining columns can be arranged in parallel.

That is, on the first column, the second column, or the remaining columns, the wobble pattern touch sensors may be arranged in a row on one row (hereinafter referred to as a "stripe structure"). 11, the touch sensor 650-1 of the first column and the touch sensor 650-2 of the second column do not form one row side by side, Lt; RTI ID = 0.0 &gt; offsets &lt; / RTI &gt;

Specifically, in the second column, the wobble pattern touch sensor 650-2 is disposed further downward toward the touch drive IC than the wobble touch sensor 650-1 in the first column (hereinafter referred to as "delta structure delta structure structure ").

The touch screen panel formed of the delta-structured touch sensor according to the embodiment of FIG. 11 is easier to detect the multi-touch than the touch screen panel having the stripe structure. In the embodiment shown in FIG. 11, the wobble pattern touch sensor has an offset in accordance with the column. However, in the embodiment in which the wobble pattern touch sensor has an offset along a row according to the arrangement type with the touch drive IC It is possible.

12 is a diagram illustrating columns of a touch sensor including a resistive region according to an embodiment of the present invention. For example, the iso-resistance region can be largely included for two reasons, and can be included in the region 930 and the region 940 in Fig.

The first reason for adding a resistive region may be introduced to prevent static or overvoltage from the touch driver IC. That is, for a touch sensor located close to the touch drive IC, a resistive region is added to introduce an optional additional resistance path in order to prevent damage to the touch sensor due to sudden overload or the like.

The second reason for adding a resistive region is to introduce a resistive region to compensate for the fact that the distance between the touch driver IC and the touch sensor belonging to each column is not constant. Assuming that the touch drive IC is located in the center column, for example, it is assumed that the touch sensor IC is located in the first column, and the sensor signal by the touch sensor located at the longest distance from the touch drive IC, Since the voltage change of the touch sensor located at a close distance may vary depending on the length of the sensor signal line, a resistive region is introduced to compensate for the change.

13 is a view illustrating a configuration of a part of the multi-point touch screen panel of FIG. 13, the multi-point touch screen panel may include a plurality of touch sensors 10, a plurality of signal lines 22, and a touch drive IC 30, and the plurality of signal lines 22 The touch driver IC 30 may further include a plurality of muxes 330 for selectively connecting any one of the plurality of touchscreen ICs 30 to the touch driver IC 30. Here, the touch sensor 10 may have a wobble pattern as described above with reference to FIGS. 7 to 12. FIG.

The plurality of muxes 330 may be configured separately from the touch drive IC 30. For example, the touch drive IC 30 may be disposed on a flexible circuit board such as a COF or FPC, and the plurality of muxes 330 may be disposed on a display substrate that is separate from the flexible circuit board. have.

The plurality of touch sensors 10 may be disposed in a visible region of the display substrate, and the plurality of muxes 330 may be disposed in a non-visible region of the display substrate. At least one of the plurality of muxes 330 may be disposed at a lower end portion of the non-visible region of the display substrate. Further, as another embodiment of the present invention, the display substrate may be arranged in various positions on a side portion of the non-visible region.

The plurality of touch sensors 10 are arranged in a matrix form at intersections of a plurality of columns and rows in a visible region of the display substrate, In the non-visible region of the display substrate, by a number corresponding to the number of the display substrates. For example, as shown in FIG. 13, when the touch sensor 10 is arranged in a matrix form at the intersections of the first to fourth columns Col 1 to 4 and the first to fourth rows (Row 1 to 4) The first to fourth muxes 4 to 4 may be arranged in the invisible area of the display substrate as a separate structure from the touch-sensitive IC 30.

Each of the muxes may receive the signal lines of the touch sensors belonging to the respective columns and selectively connect any one of the signal lines to the touch driver IC. For example, the first multiplexer Mux 1 of FIG. 13 receives four signal lines connected to the touch sensors of the first to fourth rows (Row 1 to Row 4) belonging to the first column Col 1 , And any one of them can be selectively connected to the touch-drive IC 30.

One signal line selected by the first mux 1 may be electrically connected to a node between the switch 310 and the buffer 320 included in the touch driver IC 30, The number of switches 310 and buffers 320 may correspond to the number of muxes. One signal line selected by each of the second to fourth muxes 4 to 4 may also be electrically connected to a node between the switch and the buffer included in the touch driver IC 30, respectively.

According to an embodiment of the present invention, the touch screen panel may be configured such that when an external object such as a user's finger or an electronic pen touches or approaches the touch screen panel, as shown in FIG. 13, The touch sensors arranged in a matrix form can be sequentially scanned to detect whether or not the multi-points are touched.

For example, at scan time t1, the outputs of the first through fourth muxes are (Row 1, Col 1), (Row 1, Col 2), (Row 1, Col 3) (Row 2, Col 2), (Row 2, Col 3), (Row 2, Col 4) and the outputs of the first to fourth muxes at the scan time t 2 are (Row 3, Col 2), (Row 3, Col 3), (Row 3, Col 4) at the time t 3 and the outputs of the first to fourth muxes are The outputs of the first to fourth muxes may be (Row 4, Col 1), (Row 4, Col 2), (Row 4, Col 3), (Row 4, Col 4).

The first through fourth muxs may be 4in x 1out muxes having four input terminals and one output terminal. Here, the mux is preferably the same type for simplification of the circuit, and the mux can be manufactured as a small IC device together with an ADC (Analog to Digital Converter) or an amplifier.

14 is a diagram illustrating a multi-point touch screen panel according to another embodiment of the present invention. Referring to FIG. 14, the multi-point touch screen panel 400 includes a plurality of touch sensors 10, a plurality of signal lines 22, and a plurality of touch driver ICs (not shown) 30), and the like, and may further include a plurality of muxes.

The plurality of muxes can be variously arranged on the side portion of the invisible area of the display substrate, for example, as shown in Fig. Specifically, the first mux M1 is a 4in X 1out mux that selects any one of the signal lines of the first through fourth rows belonging to the first column Col 1, 4in X 1out mux that selects any one of the signal lines of the first to fourth rows belonging to the second column (Col 2).

The third mux M3 is a 4in X 1out mux that selects any one of signal lines of the first through fourth rows belonging to the third column Col 3 and the fourth mux M 4 is a May be a 4in X 1out multiplexer that selects any one of the signal lines of the first through fourth rows belonging to the column Col 4.

According to an embodiment of the present invention, the plurality of muxes are configured separately from the touch drive IC 30, the touch drive IC 30 is disposed on a flexible circuit board, And can be disposed in various positions on the side of the non-visible region of the substrate.

Here, as shown in FIG. 14, the plurality of muxes may be arranged in the same ratio (for example, 2: 2) on the side portion of the non-visible region, or may be arranged in different ratios 1: 3, 0: 4), and the like.

15 is a diagram illustrating a configuration of another multi-point touch screen panel of the present invention. 15, the multi-point touch screen panel may include a plurality of touch sensors 10, a plurality of signal lines 22, and a touch drive IC 30, and the plurality of signal lines 22 The touch driver IC 30 may further include a plurality of muxes 330 for selectively connecting any one of the plurality of touchscreen ICs 30 to the touch driver IC 30.

The plurality of touch sensors 30 may be arranged in a matrix of a plurality of columns and rows. 15, the plurality of touch sensors 30 may be arranged in a matrix of 8 columns Col 1-8 and 4 rows (Row 1-4).

The odd-numbered mux of the plurality of muxes 330 is connected to the signal lines of the touch sensors corresponding to at least two odd-numbered columns, and among the plurality of muxes, May be connected to the signal lines of the touch sensors corresponding to at least two even columns.

For example, as shown in FIG. 15, the odd-numbered first mux 1 corresponds to the signal lines of the touch sensors corresponding to the first column Col 1 and the corresponding signal lines corresponding to the third column Col 3 The touch sensors may be connected to the signal lines of the touch sensors.

The first multiplexer Mux 1 selects one of the signal lines of the touch sensors corresponding to the first column Col 1 and then selects one of the signal lines of the touch sensors corresponding to the third column Co 13 You can choose one.

On the other hand, the second mux 2, which is the even number, can be connected to the signal lines of the touch sensors corresponding to the second column Col 2 and the signal lines of the touch sensors corresponding to the fourth column Col 4 have.

The second mux 2 selects one of the signal lines of the touch sensors corresponding to the second column Col 2 and then selects one of the signal lines of the touch sensors corresponding to the fourth column Col 4, You can choose one.

The odd-numbered third mux 3 may be connected to the signal lines of the touch sensors corresponding to the fifth column Col 5 and the signal lines of the touch sensors corresponding to the seventh column Col 7 have.

The third mux 3 selects one of the signal lines of the touch sensors corresponding to the fifth column Col 5 and then selects one of the signal lines of the touch sensors corresponding to the seventh column Co 1 7 You can choose one.

On the other hand, the even fourth Mux 4 may be connected to the signal lines of the touch sensors corresponding to the sixth column Col 6 and the signal lines of the touch sensors corresponding to the eighth column Col 8 have.

The fourth mux 4 selects one of the signal lines of the touch sensors corresponding to the sixth column Col 6 and then selects one of the signal lines of the touch sensors corresponding to the eighth column Col 6 You can choose one.

The number of the plurality of muxes may be half the number of columns in which the plurality of touch sensors are arranged. For example, as shown in FIG. 15, if the number of columns is eight, the number of the muxes may be four.

One signal line selected by each of the muxes may be electrically connected to a node between the switch 310 and the buffer 320 included in the touch driver IC 30, The number of buffers 310 and buffers 320 may correspond to the number of muxes.

According to the embodiment of the present invention, the touch screen panel may be configured such that when an external object such as a user's finger or an electronic pen touches or approaches the touch screen panel, as shown in FIG. 15, The touch sensors arranged in a matrix at the intersections of the odd numbered columns and the even numbered columns can be scanned alternately.

For example, at the scan time t1, the first to fourth muxs output (Row1, Col1), (Row1, Col3), (Row1, Col5) (Row 1, Col 2), (Row 1, Col 4), (Row 1, Col 6), and (Row 1, Col 8).

At the scan time t2, the first to fourth muxs output (Row 2, Col 1), (Row 2, Col 3), (Row 2, Col 5) 2, Col 2), (Row 2, Col 4), (Row 2, Col 6), and (Row 2, Col 8).

At the scan time t3, the first to fourth muxs output Row 3, Col 1, Row 3, Col 3, Row 3, Col 5, and Row 3, 3, Col 2), (Row 3, Col 4), (Row 3, Col 6), and (Row 3, Col 8).

At scan time t4, the first to fourth muxs output (Row 4, Col 1), (Row 4, Col 3), (Row 4, Col 5), 4, Col 2), (Row 4, Col 4), (Row 4, Col 6), and (Row 4, Col 8).

According to the embodiment of the present invention, the signals of the touch sensors corresponding to the odd-numbered columns are output first, and then the signals of the touch sensors corresponding to the even-numbered columns are output.

The first to fourth muxs may be 8in x 1out muxes having eight input terminals and one output terminal. Here, the mux is preferably the same type for simplification of the circuit, and the mux can be manufactured as a small IC device together with an ADC (Analog to Digital Converter) or an amplifier.

The plurality of muxes 330 may be configured separately from the touch drive IC 30. For example, the touch drive IC 30 may be disposed on a flexible circuit board such as a COF or FPC, and the plurality of muxes 330 may be disposed on a display substrate that is separate from the flexible circuit board. have.

The plurality of touch sensors 10 may be disposed in a visible region of the display substrate, and the plurality of muxes 330 may be disposed in a non-visible region of the display substrate. At least one of the plurality of muxes 330 may be disposed at a lower end portion of the non-visible region of the display substrate.

At least one of the plurality of muxes 330 may be variously arranged on a side portion of the non-visible region of the display substrate. The plurality of touch sensors 10 may be arranged in a matrix matrix at intersections of a plurality of columns and rows within a visible region of the display substrate. The touch sensors and the signal lines may be a conductive transparent material or a non-transparent metallic material.

The signal lines are disposed in a visible region and an invisible region of the display substrate, the signal lines in the visible region are conductive transparent materials, and the signal lines in the invisible region may be non-transparent metal materials. The touch sensors and the signal lines may be disposed at an interface between the pixels of the display device and the pixels.

12 is a diagram illustrating a configuration of another multi-point touch screen panel of the present invention. 12, the multi-point touch screen panel may include a plurality of touch sensors 10, a plurality of signal lines 22, and a touch drive IC 30, and the plurality of signal lines 22 The touch driver IC 30 may further include a plurality of muxes 330 for selectively connecting any one of the plurality of touchscreen ICs 30 to the touch driver IC 30.

The plurality of touch sensors 30 may be arranged in a matrix of a plurality of columns and rows. 15, the plurality of touch sensors 30 may be arranged in a matrix of 8 columns Col 1-8 and 4 rows (Row 1-4).

The odd-numbered mux among the plurality of muxes 330 includes at least two odd-numbered columns belonging to the right and left regions with respect to the vertical center line (e.g., the dotted line "S" And an even-numbered mux among the plurality of muxes is connected to signal lines of at least two even-numbered columns belonging to left and right regions with respect to a vertical center line of the matrix, And the signal lines of the touch sensors corresponding to the touch sensors.

For example, as shown in FIG. 12, a first one of the plurality of muxes Mux 1 may be divided into a first column, which is a first column belonging to the left region, The signal lines of the touch sensors corresponding to the column Col 1 and the signal lines of the touch sensors corresponding to the fifth column Col 5 belonging to the first column belonging to the right region with reference to the vertical center line S of the matrix, Lt; / RTI &gt;

The first mux 1 selects one of the signal lines of the touch sensors corresponding to the first column Col 1 in the first column belonging to the left region, It is possible to select one of the signal lines of the touch sensors corresponding to the fifth column (Col 5) which is a column.

On the other hand, the second Mux 2 among the plurality of muxes is connected to the signal lines of the touch sensors corresponding to the second column (Col 2), which is the second column belonging to the left region, with reference to the vertical center line of the matrix And a sixth column (Col 6), which is the second column belonging to the right region, with reference to the vertical center line of the matrix.

The second Mux 2 selects one of the signal lines of the touch sensors corresponding to the second column Col 2 in the second column belonging to the left region, It is possible to select one of the signal lines of the touch sensors corresponding to the sixth column Col 6, which is a column.

The third mux 3 of the plurality of muxes may include a touch sensor corresponding to a third column Col 3 that is a third column belonging to the left region on the basis of the vertical center line S of the matrix, And the signal lines of the touch sensors corresponding to the seventh column (Col 7), which is the third column belonging to the right region, with reference to the vertical center line (S) of the matrix.

The third Mux 1 selects one of the signal lines of the touch sensors corresponding to the third column Col 3 in the third column belonging to the left region, It is possible to select one of the signal lines of the touch sensors corresponding to the seventh column (Col 7) which is a column.

Meanwhile, the fourth mux 4 among the plurality of muxes is connected to the signal lines of the touch sensors corresponding to the fourth column (Col 4), which is the fourth column belonging to the left region with respect to the vertical center line of the matrix, And the eighth column (Col 8), which is the fourth column belonging to the right region, with respect to the vertical center line of the matrix.

The fourth mux 4 selects one of the signal lines of the touch sensors corresponding to the fourth column Col 4 in the fourth column belonging to the left region, It is possible to select one of the signal lines of the touch sensors corresponding to the eighth column (Col 8) which is a column.

The number of the plurality of muxes may be half the number of columns in which the plurality of touch sensors are arranged. For example, as shown in FIG. 12, if the number of columns is eight, the number of the muxes may be four.

One signal line selected by each of the muxes may be electrically connected to a node between the switch 310 and the buffer 320 included in the touch driver IC 30, The number of buffers 310 and buffers 320 may correspond to the number of muxes.

According to an embodiment of the present invention, the touch screen panel may be configured such that when an external object such as a user's finger or an electronic pen touches or approaches the touch screen panel, as shown in FIG. 12, The touch sensors arranged in a row at the intersection of the vertical centers S of the matrix can be alternately scanned in the left and right regions with respect to the vertical center line S of the matrix.

For example, at the scan time t1, the first to fourth muxs output (Row 1, Col 1), (Row 1, Col 2), (Row 1, Col 3) (Row 1, Col 5), (Row 1, Col 6), (Row 1, Col 7), and (Row 1, Col 8)

At the scan time t2, the first to fourth muxs output (Row 2, Col 1), (Row 2, Col 2), (Row 2, Col 4), 2, Col 5), (Row 2, Col 6), (Row 2, Col 7), and (Row 2, Col 8).

At the scan time t3, the first to fourth muxs output (Row 3, Col 1), (Row 3, Col 2), (Row 3, Col 3) 3, Col 5), (Row 3, Col 6), (Row 3, Col 7), (Row 3, Col 8).

At scan time t4, the first to fourth muxs output (Row 4, Col 1), (Row 4, Col 2), (Row 4, Col 3), (Row 4, Col 4) 4, Col 5), (Row 4, Col 6), (Row 4, Col 7), (Row 4, Col 8).

According to the embodiment of the present invention, the signals of the touch sensors corresponding to the columns belonging to the left region are first output based on the vertical center line S of the matrix, and then the signals of the touch sensors corresponding to the columns belonging to the right region Can be output.

The first to fourth muxs may be 8in x 1out muxes having eight input terminals and one output terminal. Here, the mux is preferably the same type for simplification of the circuit, and the mux can be manufactured as a small IC device together with an ADC (Analog to Digital Converter) or an amplifier.

The plurality of muxes 330 may be configured separately from the touch drive IC 30. For example, the touch drive IC 30 may be disposed on a flexible circuit board such as a COF or FPC, and the plurality of muxes 330 may be disposed on a display substrate that is separate from the flexible circuit board. have.

The plurality of touch sensors 10 may be disposed in a visible region of the display substrate, and the plurality of muxes 330 may be disposed in a non-visible region of the display substrate. At least one of the plurality of muxes 330 may be disposed at a lower end portion of the non-visible region of the display substrate.

At least one of the plurality of muxes 330 may be variously arranged on a side portion of the non-visible region of the display substrate. The plurality of touch sensors 10 may be arranged in a matrix form at intersections of a plurality of columns and rows within a visible region of the display substrate. The touch sensors and the signal lines may be a conductive transparent material or a non-transparent metallic material.

The signal lines are disposed in a visible region and an invisible region of the display substrate, the signal lines in the visible region are conductive transparent materials, and the signal lines in the invisible region may be non-transparent metal materials. The touch sensors and the signal lines may be disposed at an interface between the pixels of the display device and the pixels.

The embodiments of the present invention described in detail above may be implemented individually or in combination with each other. The present invention described above is not limited to the above-described embodiment and the accompanying drawings, and various substitutions, modifications and variations are possible without departing from the technical spirit of the present invention. Which will be apparent to those skilled in the art to which the present invention pertains.

10: touch sensor 22: signal line
30: Touch drive IC 31: Driving part
330: Mux 310: Switch
320: buffer

Claims (29)

In a multi-point touch screen panel,
A plurality of touch sensors of a wobble pattern for generating a signal in accordance with contact or approach of an external object;
A plurality of signal lines electrically connected to the plurality of touch sensors;
A touch drive IC for receiving the signal; And
And a plurality of muxes for selectively connecting any one of the plurality of signal lines to the touch drive IC.
The method according to claim 1,
Wherein the wobble patterns are repeatedly arranged in a rhombic shape intertwined with each other in a state in which the phases are inverted by 180 degrees to form one column of the touch sensor.
3. The method of claim 2,
Wherein the wobble pattern is formed by connecting at least one rhombic shape to each other or by connecting at least one rhombic shape and a part of a rhombic shape to each other.
3. The method of claim 2,
Wherein when the resolution of the touch sensor is increased, the width of the rhombic shape forming the wobble pattern is reduced, but the number of rhombic shapes is increased.
3. The method of claim 2,
Wherein wobble patterns of neighboring columns in the column are staggered from each other by a predetermined offset.
The method according to claim 1,
Wherein the wobble pattern is formed with a fine pattern from which a transparent conductive material is removed to improve visibility.
The method according to claim 1,
The touch driver IC is disposed on a flexible circuit board,
Wherein the plurality of muxes are disposed in a non-visible region of the display substrate.
In a multi-point touch screen panel,
A plurality of touch sensors of a wobble pattern for generating a signal in accordance with contact or approach of an external object;
A plurality of signal lines electrically connected to the plurality of touch sensors;
A touch drive IC for receiving the signal; And
And a plurality of muxes for selectively connecting at least one of the plurality of signal lines to the touch driver IC,
Wherein the plurality of touch sensors are arranged in a matrix of a plurality of columns and rows,
The odd-numbered mux among the plurality of muxes is connected to the signal lines of the touch sensors corresponding to at least two odd-numbered columns,
Wherein the even-numbered mux among the plurality of muxes is connected to signal lines of the touch sensors corresponding to at least two odd-numbered columns.
9. The method of claim 8,
Wherein the wobble patterns are repeatedly arranged in a rhombic shape intertwined with each other in a state in which the phases are inverted by 180 degrees to form one column of the touch sensor.
10. The method of claim 9,
Wherein the wobble pattern is formed by connecting at least one rhombic shape to each other or by connecting at least one rhombic shape and a part of a rhombic shape to each other.
10. The method of claim 9,
Wherein when the resolution of the touch sensor is increased, the width of the rhombic shape forming the wobble pattern is reduced, but the number of rhombic shapes is increased.
10. The method of claim 9,
Wherein wobble patterns of neighboring columns in the column are staggered from each other by a predetermined offset.
9. The method of claim 8,
Wherein the wobble pattern is formed with a fine pattern from which a transparent conductive material is removed to improve visibility.
9. The method of claim 8,
The touch driver IC is disposed on a flexible circuit board,
Wherein the plurality of muxes are disposed in a non-visible region of the display substrate.
9. The method of claim 8,
Wherein the first mux among the plurality of muxes is connected to the signal lines of the touch sensors corresponding to the first column and the signal lines of the touch sensors corresponding to the third column, .
16. The method of claim 15,
Wherein the first multiplexer selects one of the signal lines of the touch sensors corresponding to the first column and then selects one of the signal lines of the touch sensors corresponding to the third column. Point touch screen panel.
9. The method of claim 8,
Wherein the second mux among the plurality of muxes is connected to the signal lines of the touch sensors corresponding to the second column and the signal lines of the touch sensors corresponding to the fourth column. .
18. The method of claim 17,
Wherein the second multiplexer selects one of the signal lines of the touch sensors corresponding to the second column and then selects one of the signal lines of the touch sensors corresponding to the fourth column. Point touch screen panel.
In a multi-point touch screen panel,
A plurality of touch sensors of a wobble pattern for generating a signal in accordance with contact or approach of an external object;
A plurality of signal lines electrically connected to the plurality of touch sensors;
A touch drive IC for receiving the signal; And
And a plurality of muxes for selectively connecting at least one of the plurality of signal lines to the touch driver IC,
Wherein the plurality of touch sensors are arranged in a matrix of a plurality of columns and rows,
The odd-numbered muxes of the plurality of muxes are connected to signal lines of touch sensors corresponding to at least two odd-numbered columns belonging to left and right regions with respect to the vertical center line of the matrix,
Wherein the even mux among the plurality of muxes is connected to the signal lines of the touch sensors corresponding to at least two odd columns belonging to the right and left regions with respect to the vertical center line of the matrix, Screen panel.
20. The method of claim 19,
Wherein the wobble patterns are repeatedly arranged in a rhombic shape intertwined with each other in a state in which the phases are inverted by 180 degrees to form one column of the touch sensor.
21. The method of claim 20,
Wherein the wobble pattern is formed by connecting at least one rhombic shape to each other or by connecting at least one rhombic shape and a part of a rhombic shape to each other.
21. The method of claim 20,
Wherein when the resolution of the touch sensor is increased, the width of the rhombic shape forming the wobble pattern is reduced, but the number of rhombic shapes is increased.
21. The method of claim 20,
Wherein wobble patterns of neighboring columns in the column are staggered from each other by a predetermined offset.
20. The method of claim 19,
Wherein the wobble pattern is formed with a fine pattern from which a transparent conductive material is removed to improve visibility.
20. The method of claim 19,
The touch driver IC is disposed on a flexible circuit board,
Wherein the plurality of muxes are disposed in a non-visible region of the display substrate.
20. The method of claim 19,
The first mux among the plurality of muxes includes signal lines of the touch sensors corresponding to the first column belonging to the left region with respect to the vertical center line of the matrix, Wherein the signal lines are connected to the signal lines of the touch sensors corresponding to the first column belonging to the first column.
27. The method of claim 26,
The first mux selects one of the signal lines of the touch sensors corresponding to the first column belonging to the left region and then selects one of the signal lines of the touch sensors corresponding to the first column belonging to the right region, The touch screen panel comprising:
20. The method of claim 19,
The second mux among the plurality of muxes includes signal lines of touch sensors corresponding to a second column belonging to a left region with respect to a vertical center line of the matrix and a signal line of a touch sensor corresponding to a right region Wherein the signal lines are connected to the signal lines of the touch sensors corresponding to the second column belonging to the first column.
29. The method of claim 28,
The second mux selects one of the signal lines of the touch sensors corresponding to the second column belonging to the left region and then selects one of the signal lines of the touch sensors corresponding to the second column belonging to the right region The touch screen panel comprising:

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