KR20100079366A

KR20100079366A - Touch screen display apparatus

Info

Publication number: KR20100079366A
Application number: KR1020080137822A
Authority: KR
Inventors: 추대호
Original assignee: (주)세현
Priority date: 2008-12-31
Filing date: 2008-12-31
Publication date: 2010-07-08

Abstract

Disclosed is a touch screen display device having a reduced manufacturing cost. The touch screen display device includes a touch recognition display panel, an RF signal generator, and a touch position detector. The touch recognition display panel includes a first substrate having a first base substrate and a pixel electrode formed on the first base substrate, a second substrate having a touch recognition pattern formed on the second base substrate and the second base substrate, and two substrates. It includes a liquid crystal layer interposed therebetween. The RF signal generator generates a radio frequency (RF) signal and transmits it to the touch recognition pattern. The touch position detector receives an RF signal from the touch recognition pattern, detects a change in the RF signal due to an external touch event, and detects a touch position where the touch event is generated. As such, since a touch recognition pattern capable of sensing a touch position by an RF signal is embedded in the second substrate, the touch screen display device of the present invention may omit a separate touch panel, thereby reducing manufacturing cost and thickness. .

Description

Touch Screen Display {TOUCH SCREEN DISPLAY APPARATUS}

The present invention relates to a touch screen display device, and more particularly, to a touch screen display device capable of displaying an image to the outside while detecting a location where a touch event occurs.

The touch screen panel is a device capable of detecting a touch position where an external touch event occurs. The touch screen panel is generally not used alone, but is used together with a display panel capable of displaying an image to configure a touch screen display device. In detail, the touch screen panel may be disposed on the display panel to detect a touch position where a touch event occurs, and control the display panel or another application device by using the detected touch position.

However, as the touch screen display device further includes the touch screen panel separately from the display panel, a manufacturing cost may increase and a thickness may increase.

Accordingly, an object of the present invention is to provide a touch screen display device capable of reducing manufacturing costs while detecting a touch position and displaying an image.

A touch screen display device according to an embodiment of the present invention includes a touch recognition display panel, an RF signal generator, and a touch position detector.

The touch recognition display panel may include a first substrate having a first base substrate and pixel electrodes formed on the first base substrate, a second substrate having a second base substrate and a touch recognition pattern formed on the second base substrate, and And a liquid crystal layer interposed between the first substrate and the second substrate. The RF signal generator generates a radio frequency (RF) signal and transmits the generated radio frequency signal to the touch recognition pattern. The touch position detector receives the RF signal from the touch recognition pattern, detects a change in the RF signal due to an external touch event, and detects a touch position where the touch event is generated. The touch recognition pattern may be formed on one surface of the first base substrate facing the first substrate, and may be made of a transparent conductive material.

The touch recognition pattern may include an RF signal applying pattern and an RF signal receiving pattern. The RF signal application pattern is electrically connected to the RF signal generator to receive the RF signal. The RF signal receiving pattern may be spaced apart from the RF signal applying pattern to be electrically connected to the touch position detecting unit, and may receive the RF signal from the RF signal applying pattern and transmit the RF signal to the touch position detecting unit.

The RF signal receiving pattern may include a receiving pattern body portion extending in the Y-axis direction, and a plurality of receiving pattern branch portions extending in parallel in the X-axis direction from the receiving pattern body portion. The RF signal application pattern may be disposed on the opposite side of the reception pattern body portion in the X-axis direction and extend along the Y-axis direction, and from the application pattern body portion in the X-axis direction. It may include a plurality of applied pattern branches extending and disposed between the receiving pattern branches. In this case, each of the branch portions of the application pattern may be narrower as it moves away from the application pattern body portion.

The touch position detector may include a Y-axis coordinate detector and an X-axis coordinate detector. The Y-axis coordinate detector detects the voltage change of the RF signal applied from the RF signal receiving pattern to detect the Y-axis coordinate of the touch position. The X-axis coordinate detector detects a current change according to a change in electrostatic coupling between the applied pattern branch and the receiving pattern branch to detect the X-axis coordinate of the touch position. In this case, the Y-axis coordinate detector may include first and second Y-axis coordinate detectors electrically connected to both ends of the reception pattern body to the Y axis, respectively.

The second substrate may further include a color filter formed on the touch recognition pattern to face the first substrate, and a common electrode formed on the color filter.

Alternatively, the second substrate may further include a pattern protection layer formed on the touch recognition pattern to face the first substrate to protect the touch recognition pattern, and a common electrode formed on the pattern protection layer. . In this case, the first substrate may further include a color filter formed under the pixel electrode.

The pixel electrode may include a first electrode part to which a first voltage is applied, and a second electrode part to be spaced apart from the first electrode part and to be applied with a second voltage different from the first voltage. The first and second electrode portions may be patterned from the same transparent metal layer. Alternatively, the first substrate may further include an insulating layer interposed between the first and second electrode portions to insulate each other.

The first base substrate may have a flexible property and may include, for example, polyethylene terephthalate (PET). In this case, the touch recognition display panel may further include a spacing part disposed between the first and second substrates to maintain a cell gap between the first and second substrates.

The touch recognition pattern may be formed on one surface of the first base substrate facing the first substrate, and may be made of a transparent conductive material.

According to the present invention, as the touch recognition pattern for detecting the touch position by the RF signal is embedded in the second substrate, the touch screen display device is manufactured by preventing the separate touch screen panel from being provided as in the prior art. In addition to reducing costs, the thickness can also be reduced.

As the inventive concept allows for various changes and numerous embodiments, particular embodiments will be illustrated in the drawings and described in detail in the text.

However, this is not intended to limit the present invention to the specific disclosed form, it should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention. The terms first, second, etc. may be used to describe various elements, but the elements should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, the terms "comprise" or "having" are intended to indicate that there is a feature, number, step, action, component, part, or combination thereof described in the specification, and that one or more other features It should be understood that it does not exclude in advance the possibility of the presence or addition of numbers, steps, actions, components, parts or combinations thereof.

In the drawings, the thickness of each device or film (layer) and regions has been exaggerated for clarity of the invention, and each device may have a variety of additional devices not described herein. When (layers) are referred to as being located on other films (layers) or substrates, they may be formed directly on other films (layers) or substrates or additional films (layers) may be interposed therebetween.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings.

1 is a cross-sectional view illustrating a touch screen display device according to a first embodiment of the present invention, FIG. 2 is a plan view illustrating a touch recognition pattern of the teach screen display device of FIG. 1, and FIG. 3 is a touch recognition display of FIG. 2. FIG. Is a circuit diagram illustrating an RF signal generator and a touch position detector electrically connected to a pattern.

1, 2, and 3, the touch screen display device according to the present embodiment includes a touch recognition display panel TP, an RF signal generator 400, and a touch position detector 500. The touch recognition display panel TP includes a first substrate 100, a second substrate 200, and a liquid crystal layer 300.

The first substrate 100 may include a first base substrate 110, a gate wiring (not shown), a gate insulating layer 120, a data wiring (not shown), a thin film transistor (not shown), a passivation layer 130, and the like. The pixel electrode 140 may be included.

The first base substrate 110 may be made of a transparent insulating material, for example, glass, quartz, synthetic resin, or the like. The gate wiring is formed on the first base substrate 110, the gate insulating layer 120 is formed on the first base substrate 110 to cover the gate wiring, and the data wiring is formed on the gate. It is formed on the insulating layer 120 to cross the gate wiring.

The thin film transistor may include a gate electrode connected to the gate line, an active pattern formed on the gate insulating layer to overlap the gate electrode, a source electrode connected to the data line and overlapping a portion of the active pattern, and spaced apart from the source electrode. And a drain electrode overlapping with another portion of the active pattern.

The passivation layer 130 is formed on the gate insulating layer 120 to cover the data line and the thin film transistor. The pixel electrode 140 is made of a transparent conductive material and is formed on the passivation layer 130. The pixel electrode 140 is formed in each of the unit pixel regions and is in electrical contact with the drain electrode through a contact hole (not shown) formed in the passivation layer 130.

The second substrate 200 may include a second base substrate 210, a touch recognition pattern 220, a color filter CF, and a common electrode 230.

The second base substrate 210 is made of the same transparent insulating material as the first base substrate 110, for example, may be made of glass, quartz and synthetic resin. The touch recognition pattern 220 is formed on one surface of the second base substrate 210 facing the first substrate 100.

The color filter CF may be formed on the touch recognition pattern 220 and may include, for example, a red color filter, a green color filter, and a blue color filter. The common electrode 230 is formed on the color filter CF and is made of a transparent conductive material.

The liquid crystal layer 300 is interposed between the first substrate 110 and the second substrate 120, the arrangement is changed by the electric field formed between the pixel electrode and the common electrode to change the light transmittance.

The touch recognition pattern 220 will be described in detail. The touch recognition pattern 220 is formed on one surface of the second base substrate 210 and is made of a transparent conductive material. The touch recognition pattern 220 may include an RF signal applying pattern 222 and an RF signal receiving pattern 224 spaced apart from the RF signal applying pattern 222.

The RF signal reception pattern 224 may include a reception pattern body part 224a and a plurality of reception pattern branch parts 224b. The reception pattern body part 224a has a shape extending in the Y-axis direction and is formed at one end of the second base substrate 210. The reception pattern branch parts 224b extend in parallel along the X-axis direction from the reception pattern body part 224a. Each of the reception pattern branch parts 224b may have a rectangular shape such that a width thereof becomes substantially constant.

The RF signal application pattern 222 may include an application pattern body portion 222a and a plurality of application pattern branch portions 222b. The application pattern body portion 222a has a shape extending in the Y-axis direction and is formed at the other end of the second base substrate 210 opposite to the one end. The application pattern branch portions 222b extend from the application pattern body portion 222a in the X-axis direction and are disposed between the reception pattern branch portions 224b, respectively.

In the present exemplary embodiment, each of the branch portions 222b of the application pattern may be narrower as it moves away from the application pattern body portion 222a. That is, each of the applied pattern branch parts 222b may have an isosceles triangle shape having a symmetrical shape substantially with respect to the X axis direction. Therefore, the distance between the adjacent application pattern branch portion 222b and the reception pattern branch portion 224b may increase as the distance from the application pattern body portion 222a increases.

4 is a circuit diagram illustrating the touch recognition pattern 220 of FIG. 3 in a circuit concept.

Referring back to FIG. 4, the application pattern body part 222b may include a plurality of resistors formed to correspond to the application pattern branch parts 222a. For example, when the application pattern branches 222a are formed of the first to fourth application pattern branches, the application pattern body part 222b may correspond to each of the first to fourth application pattern branches. The first to fourth resistors R1, R2, R3, and R4 may be included. In this case, the first to fourth resistors R1, R2, R3, and R4 may have the same resistance value.

Subsequently, it can be seen that a plurality of capacitors are continuously formed in the X-axis direction between the adjacent application pattern branch portion 222b and the reception pattern branch portion 224b. In this case, the distance between the applied pattern branch portion 222b and the receiving pattern branch portion 224b increases as the distance from the applied pattern body portion 222a increases, so that the value of the plurality of capacitors increases in the applied pattern body portion. It can be said that the further away from (222a).

The RF signal generator 400 generates a radio frequency (RF) signal and transmits it to the touch recognition pattern 222. Here, the RF signal may be a signal having a frequency of several hundred KHz.

In detail, the RF signal generator 400 is electrically connected to one end of the application pattern body 222a to apply the RF signal. The RF signal applied to the application pattern body 222a passes through the first to fourth resistors R1, R2, R3, and R4, and the amplitude of the signal decreases. For example, the RF signal has an amplitude of A1 after passing through the first resistor R1, has an amplitude of A2 after passing through the second resistor R2, and the third resistor R3. When passing through the amplitude of A3 and passing through the fourth resistor (R4) and having an amplitude of A4, A1> A2> A3> A4 has a relationship. As a result, an RF signal having an amplitude of A1 is applied to the first application pattern branch, an RF signal having an amplitude of A2 is applied to the second application pattern branch, and A3 is applied to the third application pattern branch. An RF signal having an amplitude of may be applied, and an RF signal having an amplitude of A4 may be applied to the fourth application pattern branch portion.

The touch position detector 500 receives the RF signal from the touch recognition pattern 220, detects a change in the RF signal due to an external touch event, and detects a touch position where the touch event is generated. The touch position detector 500 according to the present embodiment may include a Y-axis coordinate detector 510 and an X-axis coordinate detector 520.

The Y-axis coordinate detector 510 may detect a Y-axis coordinate of the touch position by detecting a voltage change of the RF signal applied from the RF signal receiving pattern 224. For example, the Y-axis coordinate detector 510 may detect the Y-axis coordinates of the touch position by using an RF signal having a decreasing amplitude along the Y-axis direction.

The Y-axis coordinate detector 510 may include first and second Y-axis coordinate detectors 512 and 514 electrically connected to both ends of the reception pattern body 224a toward the Y-axis, respectively. The first and second Y-axis coordinate detectors 512 and 514 may detect a voltage change at both ends of the reception pattern body 224a to detect the Y-axis coordinate of the touch position.

The X-axis coordinate detector 520 may detect a change in current in the reception pattern branches 224b to detect the X-axis coordinate of the touch position. For example, the X-axis coordinate detector 520 may detect the X-axis coordinates of the touch position by using a value of a capacitor decreasing along the X-axis direction. That is, the X-axis coordinate detector 520 detects a relative change in current flow due to a change in electrostatic coupling between the application pattern branches 222b and the reception pattern branches 224b adjacent to each other, thereby detecting the X-axis of the touch position. Coordinates can be detected.

According to the present exemplary embodiment, since a separate touch screen panel is not provided as in the related art, a touch recognition pattern capable of detecting a touch position by an RF signal is embedded in the second substrate, thereby increasing the manufacturing cost of the touch screen display device. In addition to reducing, the thickness can also be reduced.

In addition, as the touch recognition pattern is made of a transparent conductive material and is formed of a single layer, the transmittance of light may be increased to increase luminance.

4 is a cross-sectional view illustrating a touch screen display device according to a second embodiment of the present invention.

The touch screen display device according to the present embodiment is substantially the same as the touch screen display device according to the first embodiment described with reference to FIGS. 1 to 3 except for the structure of the touch recognition display panel TP. Detailed description of other matters except the structure of the display panel TP will be omitted. In addition, the same components as those in the first embodiment will be given the same reference numerals.

Referring to FIG. 4, the touch recognition display panel TP includes a first substrate 100, a second substrate 200, and a liquid crystal layer 300.

The first substrate 100 may include a first base substrate 110, a gate wiring (not shown), a gate insulating layer 120, a data wiring (not shown), a thin film transistor (not shown), a color filter CF, and the like. The pixel electrode 140 may be included.

The color filter CF may be formed on the gate insulating layer 120 and may include a red color filter, a green color filter, and a blue color filter. The pixel electrode 140 is made of a transparent conductive material and is formed on the color filter CF. The pixel electrode 140 is formed in each of the unit pixel regions, and is electrically connected to the drain electrode.

The second substrate 200 may include a second base substrate 210, a touch recognition pattern 220, a pattern protection layer 240, and a common electrode 230.

The second base substrate 210 is made of the same transparent insulating material as the first base substrate 110, for example, may be made of glass, quartz and synthetic resin. The touch recognition pattern 220 is formed on one surface of the second base substrate 210 facing the first substrate 100. Since the touch recognition pattern 220 is substantially the same as the touch recognition pattern of the first embodiment, a detailed description thereof will be omitted.

The pattern protection layer 240 is formed on the touch recognition pattern 220 to protect the touch recognition pattern 220. The pattern protection layer 240 may be an inorganic insulating layer or an organic insulating layer. The common electrode 230 is formed on the pattern protection layer 240 and is made of a transparent conductive material.

The liquid crystal layer 300 is interposed between the first substrate 110 and the second substrate 120, and the arrangement is changed by an electric field formed between the pixel electrode and the common electrode, thereby changing light transmittance.

5 is a cross-sectional view illustrating a touch screen display device according to a third exemplary embodiment of the present invention.

Referring to FIG. 5, the touch recognition display panel TP includes a first substrate 100, a second substrate 200, and a liquid crystal layer 300.

The thin film transistor may include a gate electrode connected to the gate wiring, an active pattern formed on the gate insulating layer to overlap the gate electrode, a source electrode connected to the data wiring and overlapping a portion of the active pattern, and the source electrode; A drain electrode spaced apart from and overlapping another portion of the active pattern.

The passivation layer 130 is formed on the gate insulating layer 120 to cover the data line and the thin film transistor. The pixel electrode 140 is made of a transparent conductive material and is formed on the passivation layer 130 and disposed in each of the unit pixel regions.

The pixel electrode 140 is disposed between the first electrode part 142 to which a first voltage is applied and the second electrode to be spaced apart from the first electrode part 142 and to be applied with a second voltage different from the first voltage. It may include a portion 144. For example, the first electrode part 142 may be electrically connected to the drain electrode of the thin film transistor to receive a data voltage, and the second electrode part 144 may receive a common voltage from the outside. .

The first and second electrode portions 142 and 144 are formed on the passivation layer 130. The first and second electrode parts 142 and 144 may be formed by patterning from the same transparent metal layer.

The second substrate 200 may include a second base substrate 210, a touch recognition pattern 220, and a color filter CF.

The second base substrate 210 is made of the same transparent insulating material as the first base substrate 110, for example, may be made of glass, quartz and synthetic resin. The touch recognition pattern 220 is formed on one surface of the second base substrate 210 facing the first substrate 100. Since the touch recognition pattern 220 is substantially the same as the touch recognition pattern of the first embodiment, a detailed description thereof will be omitted. The color filter CF may be formed on the touch recognition pattern 220 and include a red color filter, a green color filter, and a blue color filter.

The liquid crystal layer 300 is interposed between the first substrate 110 and the second substrate 120. The arrangement of the liquid crystal layer 300 is changed by an electric field formed between the first and second electrode portions 142 and 144, thereby changing light transmittance.

According to the present embodiment, as the pixel electrode is composed of the first and second electrode portions to which different voltages are applied, the common electrode to which the common voltage is applied may not be formed on the second substrate, and as a result, the touch recognition pattern Sensitivity of the can be increased more.

6 is a cross-sectional view illustrating a touch screen display device according to a fourth embodiment of the present invention.

Referring to FIG. 6, the touch recognition display panel TP includes a first substrate 100, a second substrate 200, and a liquid crystal layer 300.

The first substrate 100 may include a first base substrate 110, a first insulating layer 120, a second insulating layer 130, and a pixel electrode 140.

The first base substrate 110 may be made of a transparent insulating material, for example, glass, quartz, synthetic resin, or the like. The first insulating layer 120 is formed on the first base substrate 110, and the second insulating layer 130 is formed on the first insulating layer 120. The first insulating layer 120 may be an inorganic insulating layer, and the second insulating layer 130 may be either an inorganic or organic insulating layer.

The pixel electrode 140 is disposed between the first electrode part 142 to which a first voltage is applied and the second electrode to be spaced apart from the first electrode part 142 and to be applied with a second voltage different from the first voltage. It may include a portion 144.

The first electrode part 142 is formed on the second insulating layer 130, and the second electrode part 144 is formed on the first insulating layer 130 to form the second insulating layer 130. Can be covered by). That is, the second insulating layer 130 may be interposed between the first and second electrode portions 142 and 144 to insulate each other.

The first electrode part 142 may be electrically connected to the drain electrode of the thin film transistor to receive a data voltage, and the second electrode part 144 may receive a common voltage from the outside. Alternatively, the second electrode unit 144 may be electrically connected to the drain electrode to receive the data voltage, and the first electrode unit 142 may receive the common voltage.

7 is a cross-sectional view illustrating a touch screen display device according to a fifth embodiment of the present invention.

In the touch screen display device according to the present exemplary embodiment, except for the material of the first and second base substrates 110 and 210, the sealing member 310, and the spacer part 320, the touch screen display device described with reference to FIGS. Since it is substantially the same as the touch screen display device according to the first embodiment, other descriptions except this will be omitted. In addition, the same reference numerals will be given to the same components as those in the first embodiment.

Referring to FIG. 7, the second base substrate 210 may be made of a synthetic resin having a flexible property. For example, the second base substrate 210 may include polyethylene terephthalate (PET).

The first base substrate 110 may be made of a flexible synthetic resin in the same manner as the second base substrate 210. Alternatively, the first base substrate 110 may be made of synthetic resin, glass, quartz, or the like having rigid properties.

The touch recognition display panel TP may further include a sealing member 310 and a plurality of spacer parts 320 disposed between the first and second substrates 100 and 200.

The sealing member 310 seals between the first and second substrates 100 and 200 so that the liquid crystal layer 300 does not leak out. The spacer parts 320 are spaced apart from the first and second substrates 100 and 200 to maintain a cell gap between the first and second substrates 100 and 200. . That is, the spacer parts 320 may prevent the first or second base substrates 100 and 200 having a flexible property from being bent.

According to the present embodiment, as the second base substrate has a flexible property, the second base substrate may be bent by a touch pressure by an external worker. As a result, the external worker may feel by hand whether the touch event is applied to the touch screen display panel.

According to the present invention, instead of having a separate touch screen panel, a touch recognition pattern for sensing a touch position by an RF signal is formed on the second substrate, thereby reducing the manufacturing cost and thickness of the touch screen display device. Can be. In addition, as the touch recognition pattern is made of a transparent conductive material and is formed of a single layer, the transmittance of light may be increased to increase luminance.

On the other hand, when the pixel electrode is composed of first and second electrode portions to which different voltages are applied, the common electrode to which the common voltage is applied may not be formed on the second substrate, and as a result, the sensing sensitivity of the touch recognition pattern Can be increased further.

In the detailed description of the present invention described above with reference to the preferred embodiments of the present invention, those skilled in the art or those skilled in the art having ordinary skill in the art will be described in the claims to be described later It will be understood that various modifications and variations can be made in the present invention without departing from the scope of the present invention.

1 is a cross-sectional view illustrating a touch screen display device according to a first embodiment of the present invention.

FIG. 2 is a plan view illustrating a touch recognition pattern of the teach screen display device of FIG. 1.

3 is a circuit diagram illustrating an RF signal generator and a touch position detector electrically connected to the touch recognition pattern of FIG. 2.

TP: touch recognition display panel 100: first substrate

110: first base substrate 120: gate insulating layer

130: passivation layer 140: pixel electrode

200: second substrate 210: second base substrate

220: touch recognition pattern 222: RF signal application pattern

222a: applied pattern body portion 222b: applied pattern branch portion

224: RF signal receiving pattern 224a: receiving pattern body

224b: Receiving pattern branch CF: Color filter

230: common electrode 240: pattern protective layer

300: liquid crystal layer 400: RF signal generator

500: touch position detector 510: Y-axis coordinate detector

520 X-axis coordinate detector

Claims

A first substrate having a first base substrate and a pixel electrode formed on the first base substrate, a second substrate having a second base substrate and a touch recognition pattern formed on the second base substrate, and the first substrate and the A touch recognition display panel having a liquid crystal layer interposed between the second substrates;

An RF signal generator for generating an RF signal and transmitting the radio frequency signal to the touch recognition pattern; And

And a touch position detector for receiving the RF signal from the touch recognition pattern and detecting a change in the RF signal due to an external touch event to detect a touch position where the touch event is generated.

The method of claim 1, wherein the touch recognition pattern is

An RF signal applying pattern electrically connected to the RF signal generator to receive the RF signal; And

And an RF signal receiving pattern disposed to be spaced apart from the RF signal applying pattern and electrically connected to the touch position detecting unit, and receiving the RF signal from the RF signal applying pattern and transferring the received RF signal to the touch position detecting unit. Touch screen display.

The method of claim 2, wherein the RF signal receiving pattern

A reception pattern body portion extending in the Y-axis direction; And

A plurality of receiving pattern branches extending in parallel in the X-axis direction from the receiving pattern body,

The RF signal application pattern

An application pattern body portion disposed on an opposite side of the reception pattern body portion in the X-axis direction and extending along the Y-axis direction; And

And a plurality of application pattern branches extending from the application pattern body in the X-axis direction and disposed between the reception pattern branches.

The method of claim 3, wherein each of the application pattern branch portion

The touch screen display device, characterized in that the width becomes narrower away from the application pattern body.

The method of claim 3, wherein the touch position detector

A Y-axis coordinate detector that detects a Y-axis coordinate of the touch position by sensing a voltage change of the RF signal applied from the RF signal receiving pattern; And

And an X-axis coordinate detector for detecting a change in current caused by a change in electrostatic coupling between the applied pattern branch and the receiving pattern branch to detect the X-axis coordinate of the touch position.

The method of claim 5, wherein the Y-axis coordinate detector

And first and second Y-axis coordinate detectors electrically connected to both ends of the reception pattern body part to the Y-axis, respectively.

The method of claim 1, wherein the second substrate is

A color filter formed on the touch recognition pattern to face the first substrate; And

And a common electrode formed on the color filter.

The method of claim 1, wherein the second substrate is

A pattern protection layer formed on the touch recognition pattern to face the first substrate to protect the touch recognition pattern; And

And a common electrode formed on the pattern protection layer.

The method of claim 8, wherein the first substrate

And a color filter formed under the pixel electrode.

The method of claim 1, wherein the pixel electrode

A first electrode part to which a first voltage is applied; And

And a second electrode part spaced apart from the first electrode part and to which a second voltage different from the first voltage is applied.

The method of claim 10, wherein the first and second electrode portions are

A touch screen display device, characterized in that formed by patterning from the same transparent metal layer.

The method of claim 10, wherein the first substrate

And an insulating layer interposed between the first and second electrode portions to insulate each other.

The method of claim 1, wherein the first base substrate

A touch screen display device having a flexible property.

The method of claim 13, wherein the first base substrate is

A touch screen display device comprising polyethylene terephthalate (PET).

The display device of claim 13, wherein the touch recognition display panel

And a spacing unit disposed between the first and second substrates to maintain a cell gap between the first and second substrates.

The method of claim 1, wherein the touch recognition pattern is

And a transparent conductive material formed on one surface of the first base substrate facing the first substrate.