KR20080089910A - Liquid crystal display device united to touch panel - Google Patents

Abstract

A single unit touch panel LCD(Liquid Crystal Display) is provided to secure the margin of a non-display area of a touch panel sufficiently, thereby improving the reliability of products. A first substrate(55) is divided into a display area and a non-display area. An LCD panel(51) is disposed on a rear surface of the first substrate. A touch panel(53) is disposed in the display area of an upper surface of the first substrate. An FPC(Flexible Printed Circuit)(69) is disposed in the non-display area of the upper surface of the first substrate. The FPC is electrically connected to the touch panel. The first substrate is a substrate for disposing thin film transistors thereon. The touch panel has one of a resistor film type and a storage capacitance type. The LCD panel includes the first substrate, a first pattern(57) disposed in the display area of a rear surface of the first substrate and including the thin film transistors, a second substrate(65) facing the first substrate, a second pattern(63) disposed on an upper surface of the second substrate and including color filters, and a liquid crystal layer(61) interposed between the first substrate and the second substrate.

Description

Liquid crystal display device united to touch panel

1 is a cross-sectional view showing a conventional touch panel integrated liquid crystal display device.

2 is a diagram illustrating a margin for connection with an FPC to a touch panel.

3 is a cross-sectional view showing a touch panel integrated liquid crystal display device according to a first embodiment of the present invention;

4 is a diagram illustrating a problem occurring in the touch panel integrated liquid crystal display of FIG. 3.

5 is a cross-sectional view showing a touch panel integrated liquid crystal display device according to a second embodiment of the present invention;

6 is a cross-sectional view showing a touch panel integrated liquid crystal display device according to a third embodiment of the present invention;

7 is a cross-sectional view illustrating a touch panel integrated liquid crystal display device according to a fourth embodiment of the present invention.

<Explanation of symbols for main parts of the drawings>

51: liquid crystal panel 53, 91: touch panel

55: first substrate 57: first pattern

59: seal pattern 61: liquid crystal layer

63: second pattern 65: second substrate

67: TCP 69: first FPC

71: first electrode pattern 73, 95: second FPC

75: double-sided adhesive tape 76: dot spacer

77: third substrate 78: second electrode pattern

79: first polarizing plate 81: second polarizing plate

83, 101: first quarter wave plate 85, 103: second quarter wave plate

93: electrode pattern 97: protective film

The present invention relates to a liquid crystal display device, and more particularly, to a liquid crystal display device having a touch panel input function.

As the information society develops, the demand for display devices is increasing in various forms. In response to this, a variety of flat panel display devices including liquid crystal display devices (LCDs), plasma display panels (PDPs), and electroluminescent displays (ELDs) have been studied. Is already widely used as a display device.

Among these, the liquid crystal display device is currently excellent in image quality and has advantages such as light weight, thinness, and low power consumption, thereby rapidly replacing CRTs. BACKGROUND OF THE INVENTION Liquid crystal display devices have been developed in various ways such as laptop monitors, television display panels, and the like.

In recent years, a touch panel is mounted on a liquid crystal display device so that desired information can be displayed by touch.

1 is a cross-sectional view illustrating a conventional touch panel integrated liquid crystal display device.

As shown in FIG. 1, a conventional touch panel integrated liquid crystal display device includes a liquid crystal panel 1 and a touch panel 3. That is, the touch panel 3 is integrally attached to the liquid crystal panel 1.

The liquid crystal panel 1 includes a first substrate 5 having a first pattern 7, a second substrate 15 having a second pattern 13, a first substrate 5 and a second substrate 15. ) And a liquid crystal layer 11 interposed therebetween. The first pattern 7 may include a gate line, a data line, a thin film transistor, and a pixel electrode. The second pattern 13 may include a black matrix, a color filter, and a common electrode.

The first and second substrates 5 and 15 may be bonded using the seal pattern 9.

The second substrate 15 may be used as the lower substrate of the touch panel 3. As such, by using the second substrate 15 as the upper substrate of the liquid crystal panel 1 and the lower substrate of the touch panel 3 simultaneously, the overall thickness can be reduced.

The touch panel 3 may include a second substrate 15 having a first electrode pattern 17 and a third substrate 23 having a second electrode pattern 21. The second and third substrates 15 and 23 are attached through the double-sided adhesive tape 19.

The second pattern 13 may be disposed on the lower surface of the second substrate 15, and the first electrode pattern 17 may be disposed on the upper surface of the second substrate 15.

A plurality of dot spacers 20 made of an insulating material may be disposed on the first electrode pattern 17 on the second substrate 15. The plurality of dot spacers 20 prevents the second electrode pattern 21 from contacting the first electrode pattern 17 by sagging of the third substrate 23.

The first electrode pattern 17 may be disposed on the front surface of the second substrate 15, and the second electrode pattern 21 may be disposed on the front surface of the third substrate 23. Accordingly, the resistances of the first and second electrode patterns 17 and 21 are different according to the respective positions. Therefore, different resistances are generated depending on the position at which the human hand is pressed on the touch panel 3, and these different resistances are provided as electrical signals, so that corresponding information can be displayed on the liquid crystal panel.

On the other hand, the first and second polarizing plates 25 and 27 are disposed on the outer surfaces of the first and third substrates 5 and 23. The polarization directions of the first polarizing plate 25 and the second polarizing plate 27 are perpendicular to each other. Therefore, the light passing through the first polarizing plate 25 may pass through the second polarizing plate 27 as it is when the phase shift of 90 degrees through the liquid crystal panel 1 and the touch panel 3.

In general, the size of the touch panel corresponds to the display area A / A of the liquid crystal panel 1 due to spatial margin or the like.

As shown in FIG. 2, an electrical signal generated in the touch panel is provided to an external device, for example, a controller. In order to guide the electrical signal to the controller, the first and second electrode patterns may include a flexible printed circuit (FPC) 29. Is attached to one edge region of the non-display area N / A of the second substrate. In addition, a non-display area N / A having a predetermined size should be secured on the second substrate to mount other components as necessary.

However, in the conventional touch panel integrated liquid crystal display device, as shown in FIG. 1, the second substrate 15 used as the substrate of the touch panel 3 has the same size as the outer portion of the liquid crystal panel 1. As a result, a margin for the non-display area N / A for attaching the FPC to the second substrate 15 is difficult to be secured. Accordingly, there is a problem in that it is difficult to mount an external signal connection unit such as an FPC (not shown).

It is an object of the present invention to provide a touch panel integrated liquid crystal display device which can sufficiently secure a margin of a non-display area of a touch panel to improve product reliability.

According to a first exemplary embodiment of the present invention for achieving the above object, a touch panel integrated liquid crystal display device includes: a first substrate divided into a display area and a non-display area; A liquid crystal panel disposed on a rear surface of the first substrate; A touch panel on the display area on the upper surface of the first substrate; And an FPC disposed in the non-display area of the upper surface of the first substrate to be electrically connected to the touch panel, wherein the first substrate is a substrate for disposing the thin film transistor for the liquid crystal panel.

According to a second embodiment of the present invention, a touch panel integrated liquid crystal display device includes: a first substrate divided into a display area and a non-display area; A liquid crystal panel disposed on a rear surface of the first substrate; A touch panel on the display area on the upper surface of the first substrate; An FPC disposed in the non-display area on the top surface of the first substrate to be electrically connected to the touch panel; A first wave plate disposed on an upper surface of the touch panel and phase polarized in a predetermined phase; And a second wave plate disposed on a rear surface of the liquid crystal panel and reversely polarized in the same phase with respect to the first wave plate, wherein the first substrate is a substrate for disposing the thin film transistor for the liquid crystal panel.

According to a third embodiment of the present invention, a touch panel integrated liquid crystal display device includes: a first substrate divided into a display area and a non-display area; A liquid crystal panel disposed on a rear surface of the first substrate; A touch panel on the display area on the upper surface of the first substrate; An FPC disposed in the non-display area on the top surface of the first substrate to be electrically connected to the touch panel; And a wave plate disposed on an upper surface of the touch panel and phase polarized in a predetermined phase, wherein the first substrate is a substrate for disposing the thin film transistor for the liquid crystal panel and is reverse polarized in the same phase with respect to the wave plate. It has a cell gap of the liquid crystal panel.

Hereinafter, with reference to the accompanying drawings will be described an embodiment of the present invention;

In the following embodiments, the same reference numerals are assigned to the same components.

3 is a cross-sectional view illustrating a touch panel integrated liquid crystal display device according to a first embodiment of the present invention.

Referring to FIG. 3, the touch panel integrated liquid crystal display according to the first embodiment of the present invention includes a liquid crystal panel 51 and a touch panel 53 integrally formed on the liquid crystal panel 51. In order to reduce the overall thickness of the liquid crystal display, the liquid crystal panel 51 and the touch panel 53 may share a single substrate 65.

The liquid crystal panel 51 includes a first substrate 55 on which a first pattern 57 including a black matrix, a color filter, and a common electrode is disposed, and is disposed to face the first substrate 55 and has a gate line and data. And a second substrate 65 on which a second pattern 63 including lines, thin film transistors, and pixel electrodes are disposed, and a liquid crystal layer 61 interposed between the first and second substrates 55 and 65. do.

The black matrix is disposed on the first substrate 55, and red, green, and blue color filters are disposed between the black matrices. An overcoat layer may be disposed on the black matrix and the color filter to planarize the step between the black matrix and the color filter. The common electrode may be disposed on the black matrix and the color filter or on the overcoating layer.

The above description is limited to the twisted nematic mode. In the case of the in-plane switching mode, the common electrode may be disposed on the second substrate 65 instead of the first substrate 55.

The color filter may be disposed to correspond to the pixel area. The pixel area may be defined by the intersection of the gate line and the data line. In other words, the color filter may be disposed to correspond to the pixel area defined by the intersection of the gate line and the data line.

The gate line, the gate electrode, and the gate pad are disposed on the rear surface of the second substrate 65. The gate electrode may be integrally formed on the gate line, or a portion of the gate line may serve as a gate electrode. The gate pad may be disposed at one end of the gate line. The gate pad may be electrically connected to an external electronic device, for example, a TCP 67 in which a driver IC is mounted.

The semiconductor layer may be disposed on the gate electrode.

The data line, source / drain electrodes, and data pads are disposed on the semiconductor layer. The source electrode is integrally formed on the data line, and the drain electrode is spaced apart from the source electrode. The data pad may be disposed at one end of the data line. The data pad may be electrically disposed in the TCP 67 in which an external driver IC is mounted. Although only one TCP 67 is shown in FIG. 3 for convenience of description, it may be divided into a gate TCP 67 connected to the gate line and a data TCP connected to the data line.

A thin film transistor may be formed by the gate electrode, the semiconductor layer, and the source / drain electrode.

The pixel electrode is electrically connected to the drain electrode through a contact hole formed in the passivation layer 97 disposed on the data line.

The thin film transistor and the pixel electrode may be disposed in the pixel area. Accordingly, the color filter of the first substrate 55, the thin film transistor and the pixel electrode of the second substrate 65 may be disposed to correspond to each other in a single pixel area.

The gate line and the data line should receive a signal from the outside. As described above, TCP 67 may be disposed on one side of the second substrate 65 by TAB bonding for this purpose. The TCP 67 may be electrically connected to a PCB (not shown) generating a control signal through a first FPC (flexible printed circuit) 69.

Therefore, the second substrate 65 must have sufficient margin for arranging the gate pad, the data pad, and the TCP 67.

In contrast, since the first substrate 55 does not need to be connected to an external electronic device, only the first pattern 57 may be disposed.

As described above, the color filter of the first substrate 55, the thin film transistor of the second substrate 65, and the pixel electrode may correspond to each pixel area. The display area may be defined by a plurality of pixel areas defined in the liquid crystal panel 51.

Accordingly, the gate pad, the data pad, and the TCP 67 disposed on the second substrate 65 are disposed in the non-display area. As a result, the second substrate 65 has a relatively larger area than the first substrate 55 to at least place the gate pad, the data pad, and the TCP 67.

The first substrate 55 and the second substrate 65 may be bonded using the seal pattern 59.

The touch panel 53 includes the second substrate 65 having the first electrode pattern 71 and the third substrate 77 having the second electrode pattern 78. The second substrate 65 and the third substrate 77 may be attached using a double-sided adhesive tape 75. The first electrode pattern 71 may be disposed on an upper surface of the second substrate 65. As described above, the second pattern 63 is disposed on the rear surface of the second substrate 65. Therefore, the second substrate 65 is a substrate that can be commonly used for the liquid crystal panel 51 and the touch panel 53.

The first and second electrode patterns 71 and 78 may be made of ITO and IZO as transparent conductive patterns.

A plurality of dot spacers 76 made of an insulating material may be disposed on the first electrode pattern 71 of the second substrate 65. The plurality of dot spacers 76 prevents the second electrode pattern 78 from contacting the first electrode pattern 71 due to the sag of the third substrate 77.

The touch panel 53 may be disposed to correspond to the display area of the liquid crystal panel 51.

A second FPC 73 electrically connected to the first and second electrode patterns 71 and 78 of the touch panel 53 may be attached to the non-display area of the upper surface of the second substrate 65.

A second FPC 73 may be attached to the second substrate 65 and the touch panel 53 may be disposed in the display area and electrically connected to the touch panel in the non-display area.

Accordingly, by using the thin film transistor having the non-display area and the second substrate 65 on which the pixel electrode is disposed as the substrate for the touch panel 53, the touch panel ( 53, the second FPC (73) electrically connected to it can be provided, to ensure sufficient margin to install the electronic device for the touch panel (53) like the second FPC (73), it is possible to improve product reliability have.

First and second polarizing plates 79 and 81 are disposed on outer surfaces of the first and third substrates 55 and 77. The polarization directions of the first polarizing plate 79 and the second polarizing plate cross perpendicularly to each other. Therefore, the light passing through the first polarizing plate 79 may pass through the second polarizing plate 81 as it is when the phase shift of 90 degrees through the liquid crystal panel 51 and the touch panel 53.

However, in the first embodiment of the present invention, there may be a possibility that the contrast ratio is lowered. That is, as shown in FIG. 4, when external light is incident on the touch panel 53, the incident light is transmitted to the liquid crystal panel 51 via the touch panel 53. However, the incident light may be reflected by a plurality of second patterns 63, for example, gate lines and data lines, disposed on the rear surface of the second substrate 65 of the liquid crystal panel 51. In this case, light reflected by a plurality of patterns disposed on the rear surface of the second substrate 65 is generated from a backlight unit (not shown) disposed on the rear surface of the liquid crystal panel 51 to display information. The light transmitted through the liquid crystal panel 51 may be affected. That is, the alignment direction of the liquid crystal molecules included in the liquid crystal layer 61 of the liquid crystal panel 51 is controlled to adjust the amount of light transmitted. The gray scale may be determined by the adjusted transmitted light. When the external light is added to the transmitted light, desired gray scale display becomes difficult, and the transmitted light is interfered with by the external light, so that the contrast ratio may be lowered.

The second embodiment of the present invention is an embodiment proposed to prevent such reduction in contrast ratio.

5 is a cross-sectional view illustrating a touch panel integrated liquid crystal display device according to a second embodiment of the present invention.

The second embodiment of the present invention has a basic structure similar to that of the first embodiment of the present invention, except that the first and second quarter wave plates 83 and 85 are respectively formed on the liquid crystal panel 51 and the touch panel 53. ) Is arranged differently.

That is, the liquid crystal panel 51 and the touch panel 53 may be integrally disposed using the second substrate 65 in common.

A first quarter wave plate 83 is disposed on the rear surface of the liquid crystal panel 51, that is, between the liquid crystal panel 51 and the first polarizing plate 79, that is, the upper surface of the touch panel 53. A second quarter wave plate 85 may be disposed between the touch panel 53 and the second polarizing plate 81.

As described above, the polarization directions of the first polarizing plate 79 and the second polarizing plate cross perpendicularly to each other. In addition, the alignment direction of the liquid crystal molecules of the liquid crystal layer 61 is controlled in the liquid crystal panel 51 to shift the phase of light generated from the backlight unit. The light may be phase shifted from 0 degrees up to 90 degrees according to the arrangement direction of the liquid crystal molecules of the liquid crystal layer 61. For example, when the light does not phase shift at all, the light transmitted through the first polarizing plate 79 does not transmit at all to the second polarizing plate 81, and thus black gradation may be displayed. When the light is phase shifted by 90 degrees, the light transmitted through the first polarizer 79 may pass through the second polarizer 81 as it is, and thus white gray may be displayed.

The second quarter wave plate 85 shifts light by 90 degrees in a second direction, and the first quarter wave plate 83 directs light in a first direction, that is, in a reverse direction of the first direction. Phase shift by 90 degrees.

Accordingly, the external light transmitted through the second polarizing plate 81 is phase shifted by 90 degrees by the second quarter wave plate 85, and then the liquid crystal panel 51 of the liquid crystal panel 51 is passed through the touch panel 53. Reflected by the second pattern 63. The reflected light is again phase shifted by 90 degrees by the second quarter wave plate 85 via the touch panel 53. Therefore, since the external light passes through the second quarter wave plate 85 twice, a total 180 degree phase shift occurs. Therefore, the external light transmitted through the second polarizing plate 81 and the reflected light passing through the second pattern 63 of the liquid crystal panel 51 have vertical polarization with respect to the polarization axis of the second polarizing plate 81. The reflected light does not pass through the second polarizing plate 81.

Therefore, since the light incident on the touch panel 53 by the second quarter wave plate 85 is not emitted to the outside, it does not affect the light generated from the backlight unit at all. 51) the desired gradation can be displayed accurately, and the contrast ratio can be maintained or improved.

However, when only the second quarter wave plate 85 is provided, since the light generated from the backlight unit is 90 degrees out of phase, deformation of the desired gradation occurs.

Therefore, in the second embodiment of the present invention, the first quarter wave plate 83 is disposed on the rear surface of the liquid crystal panel 51 to eliminate this problem. The first quarter wave plate 83 is the same as the second quarter wave plate 85 but may be phase shifted in the reverse polarization direction. For example, when the light generated from the backlight unit is phase shifted by 90 degrees in the first direction by the first quarter wave plate 83, the light is 90 degrees in the second direction by the second quarter wave plate 85. Since the phase shift is also reverse polarized light, the light generated from the backlight unit does not generate any phase shift by the first and second quarter wave plates 85. Therefore, the gray scale determined by the alignment direction of the liquid crystal molecules of the liquid crystal layer 61 of the liquid crystal panel 51 can be accurately displayed.

Meanwhile, the cell gap of the liquid crystal panel 51 may be adjusted instead of the first quarter wave plate 83. That is, the cell gap of the liquid crystal panel 51 may be adjusted to be reverse polarized in the same phase as the second quarter wave plate 85.

The above description is limited to the resistive touch panel.

The touch panel may include a capacitive type in addition to the resistive film type.

Accordingly, the present invention can be equally applied to not only a resistive film type but also to a capacitive type, and a touch panel integrated liquid crystal display having a capacitive type will be described below.

6 is a cross-sectional view illustrating a touch panel integrated liquid crystal display device according to a third exemplary embodiment of the present invention.

In the third embodiment of the present invention, since the liquid crystal panel 51 is the same as the first and second embodiments of the present invention, further description thereof is omitted.

The touch panel 91 according to the second embodiment of the present invention is a capacitive type, and includes a second substrate 65 having an electrode pattern 93 and a protective film 97 disposed on the electrode pattern 93. do. The electrode pattern 93 may be made of ITO or IZO as a transparent conductive material. The passivation layer 97 is made of an insulating material to serve as a dielectric constant for capacitance. When a human hand contacts the protective film 97, capacitance is generated by the protective film 97 between the human hand and the electrode pattern 93 of the second substrate 65, and the capacitance is an electrical signal. The location where the person touched can be detected.

As described in the first and second embodiments of the present invention, the second substrate 65 is provided with a second pattern 63 such as a gate line, a data line, a thin film transistor, and a pixel electrode. The first substrate 55 has a larger area than the non-display area. Accordingly, a TCP 67 electrically connected to the gate line and the data line is disposed in the rear non-display area of the second substrate 65, and the touch is disposed in the non-display area of the upper surface of the second substrate 65. The second FPC 95 may be disposed to be electrically connected to the electrode pattern 93 of the panel 91.

A third embodiment of the present invention includes a second substrate 65 having a second pattern 63 for securing a non-display area in a capacitive touch panel integrated liquid crystal display device. Since the second FPC 95 may be disposed in the upper surface non-display area of the touch panel 91 to electrically connect with the metal pattern of the touch panel 91, the electronic device for the touch panel may be installed like the second FPC 95. Enough margin can be secured to improve product reliability.

7 is a cross-sectional view illustrating a touch panel integrated liquid crystal display device according to a fourth embodiment of the present invention.

In the fourth embodiment of the present invention, since the liquid crystal panel 51 is the same as the first and second embodiments of the present invention, further description thereof is omitted. In addition, in the fourth embodiment of the present invention, since the touch panel 91 is the same as the third embodiment of the present invention, further description thereof is omitted.

In the fourth exemplary embodiment of the present invention, a capacitive touch panel 91 is integrally disposed on the liquid crystal panel 51, and the rear surface of the liquid crystal panel 51, that is, the liquid crystal panel 51 and the first polarizing plate. The first quarter wave plate 101 is disposed between the first and second ones 79, and a second quarter between the upper surface of the touch panel 91, that is, the touch panel 91 and the second polarizing plate 81. The wave plate 103 may be disposed.

The second quarter wave plate 1030 shifts light by 90 degrees in a second direction, and the first quarter wave plate 101 passes light in a first direction, that is, in a reverse direction of the first direction. Phase shift.

Accordingly, the external light transmitted through the second polarizing plate 81 is phase shifted by 90 degrees by the second quarter wave plate 103, and then the liquid crystal panel 51 of the liquid crystal panel 51 is passed through the touch panel 91. Reflected by the second pattern 63. The reflected light is again phase shifted by 90 degrees by the second quarter wave plate 103 via the touch panel 91. Therefore, since the external light passes through the second quarter wave plate 103 twice, a total 180 degree phase shift occurs. Therefore, the external light transmitted through the second polarizing plate 81 and the reflected light passing through the second pattern 63 of the liquid crystal panel 51 have vertical polarization with respect to the polarization axis of the second polarizing plate 81. The reflected light does not pass through the second polarizing plate 81.

Therefore, since the light incident on the touch panel 91 by the second quarter wave plate 103 is not emitted to the outside, the light generated from the backlight unit is not influenced at all. 51) the desired gradation can be displayed accurately, and the contrast ratio can be maintained or improved.

In addition, in the fourth exemplary embodiment of the present invention, since the first quarter wave plate 101 is the same as the second quarter wave plate 103, but the phase shift is reversed in the reverse polarization direction, the liquid crystal panel 51. The gray scale determined by the arrangement direction of the liquid crystal molecules of the liquid crystal layer 61 is not changed, and the desired gray scale can be displayed accurately.

For example, when the light generated from the backlight unit is phase shifted by 90 degrees in the first direction by the first quarter wave plate 101, the light is 90 degrees in the second direction by the second quarter wave plate 105. Since the phase shift is also reverse polarized light, the light generated from the backlight unit is not caused to cause any phase shift by the first and second quarter wave plates 101 and 103. Therefore, the gray scale determined by the alignment direction of the liquid crystal molecules of the liquid crystal layer 61 of the liquid crystal panel 51 can be accurately displayed.

The cell gap of the liquid crystal panel 51 may be adjusted instead of the first quarter wave plate 101. That is, the cell gap of the liquid crystal panel 51 may be adjusted to be reverse polarized with the same phase as the second quarter wave plate 103.

As described above, the present invention can be applied to both a resistive touch panel and a capacitive touch panel.

According to the present invention, by using an array substrate having a pixel electrode and a non-display area as a substrate for arranging the FPC of the touch panel, a margin for arranging external electronic devices of the touch panel can be sufficiently secured.

According to the present invention, the second quarter wave plate is disposed on the rear surface of the touch panel to prevent external light incident on the touch panel from being emitted to the outside, thereby improving the contrast ratio.

According to the present invention, it is possible to arrange the first quarter wave plate on the back of the liquid crystal panel to prevent the gray scale of the liquid crystal panel from being deformed by the second quarter wave plate.

Those skilled in the art will appreciate that various changes and modifications can be made without departing from the technical spirit of the present invention. Therefore, the technical scope of the present invention should not be limited to the contents described in the detailed description of the specification but should be defined by the claims.

Claims (21)

A first substrate divided into a display area and a non-display area; A liquid crystal panel disposed on a rear surface of the first substrate; A touch panel on the display area on the upper surface of the first substrate; And An FPC disposed on the non-display area of the upper surface of the first substrate to be electrically connected to the touch panel; And the first substrate is a substrate for disposing the thin film transistor for the liquid crystal panel. The liquid crystal display device of claim 1, wherein the touch panel has any one of a resistive film type and a capacitive type. The liquid crystal panel of claim 1, wherein The first substrate; A first pattern disposed in the display area on the rear surface of the first substrate and including the thin film transistor; A second substrate disposed opposite the first substrate; A second pattern disposed on an upper surface of the second substrate and including a color filter; And And a liquid crystal layer interposed between the first and second substrates. The touch panel integrated liquid crystal display of claim 1, further comprising a TCP arranged to be electrically connected to the liquid crystal panel in the non-display area on the rear surface of the first substrate. The method of claim 1, wherein the touch panel, The first substrate; A first conductive pattern disposed in the display area on the upper surface of the first substrate; A plurality of dot spacers disposed on the first conductive pattern; A third substrate disposed opposite the first substrate and having the same size as the display area; And And a third conductive pattern disposed in the display area on the rear surface of the third substrate. The method of claim 1, wherein the touch panel, The first substrate; A conductive pattern disposed in the display area on the upper surface of the first substrate; And And a protective film made of an insulating material disposed on the conductive pattern. A first substrate divided into a display area and a non-display area; A liquid crystal panel disposed on a rear surface of the first substrate; A touch panel on the display area on the upper surface of the first substrate; An FPC disposed in the non-display area on the top surface of the first substrate to be electrically connected to the touch panel; A first wave plate disposed on an upper surface of the touch panel and phase polarized in a predetermined phase; And A second wave plate disposed on a rear surface of the liquid crystal panel and reversely polarized in phase with respect to the first wave plate, And the first substrate is a substrate for disposing the thin film transistor for the liquid crystal panel. The liquid crystal display of claim 7, wherein each of the first and second wavelength plates is polarized by 90 degrees. The liquid crystal display device of claim 7, wherein the touch panel has any one of a resistive film type and a capacitive type. The method of claim 7, wherein the liquid crystal panel, The first substrate; A first pattern disposed in the display area on the rear surface of the first substrate and including the thin film transistor; A second substrate disposed opposite the first substrate; A second pattern disposed on an upper surface of the second substrate and including a color filter; And And a liquid crystal layer interposed between the first and second substrates. The liquid crystal display of claim 7, further comprising a TCP disposed in the non-display area on the rear surface of the first substrate to be electrically connected to the liquid crystal panel. The method of claim 7, wherein the touch panel, The first substrate; A first conductive pattern disposed in the display area on the upper surface of the first substrate; A plurality of dot spacers disposed on the first conductive pattern; A third substrate disposed opposite the first substrate and having the same size as the display area; And And a third conductive pattern disposed in the display area on the rear surface of the third substrate. The method of claim 7, wherein the touch panel, The first substrate; A conductive pattern disposed in the display area on the upper surface of the first substrate; And And a protective film made of an insulating material disposed on the conductive pattern. A first substrate divided into a display area and a non-display area; A liquid crystal panel disposed on a rear surface of the first substrate; A touch panel on the display area on the upper surface of the first substrate; An FPC disposed in the non-display area on the top surface of the first substrate to be electrically connected to the touch panel; And A wavelength plate disposed on an upper surface of the touch panel and phase polarized in a predetermined phase; The first substrate is a substrate for disposing the thin film transistor for the liquid crystal panel, And a cell gap of the liquid crystal panel so as to be reverse polarized in the same phase with respect to the wavelength plate. 15. The touch panel integrated liquid crystal display of claim 14, wherein the wave plate is polarized by 90 degrees. 15. The liquid crystal display of claim 14, wherein the cell gap of the liquid crystal panel is phase polarized by 90 degrees. The liquid crystal display device of claim 14, wherein the touch panel has any one of a resistive film type and a capacitive type. The method of claim 14, wherein the liquid crystal panel, The first substrate; A first pattern disposed in the display area on the rear surface of the first substrate and including the thin film transistor; A second substrate disposed opposite the first substrate; A second pattern disposed on an upper surface of the second substrate and including a color filter; And And a liquid crystal layer interposed between the first and second substrates. The liquid crystal display of claim 14, further comprising a TCP disposed in the non-display area on the rear surface of the first substrate to be electrically connected to the liquid crystal panel. The method of claim 14, wherein the touch panel, The first substrate; A first conductive pattern disposed in the display area on the upper surface of the first substrate; A plurality of dot spacers disposed on the first conductive pattern; A third substrate disposed opposite the first substrate and having the same size as the display area; And And a third conductive pattern disposed in the display area on the rear surface of the third substrate. The method of claim 14, wherein the touch panel, The first substrate; A conductive pattern disposed in the display area on the upper surface of the first substrate; And And a protective film made of an insulating material disposed on the conductive pattern.

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