KR101432811B1 - Liquid crystal panel and fabricating method of the same - Google Patents

Abstract

Disclosed is a liquid crystal panel capable of preventing defects caused by negligence in use and improving reliability.

A liquid crystal panel according to the present invention includes a first substrate and a second substrate, pixel electrodes formed on the first substrate, common electrodes formed on either one of the first and second substrates, And a plurality of conductors electrically connected to and disconnecting the pixel electrode and the common electrode according to whether external pressure is applied.

Rib, short, poor touch

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a liquid crystal panel,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid crystal panel, and more particularly, to a liquid crystal panel capable of preventing defects caused by negligence in use and improving reliability, a method of manufacturing the same, a liquid crystal display device having the same, and a driving method thereof.

In recent years, liquid crystal display devices have been attracting attention as next generation advanced display devices with low power consumption, easy portability, and high value-added.

Among such liquid crystal display devices, an active matrix type liquid crystal display device provided with a thin film transistor (TFT), which is a switching device capable of controlling on / off of a voltage for each pixel, It is the most attention-grabbing. Generally, a liquid crystal display device can be broadly divided into a liquid crystal panel for displaying an image and a driving part for driving the liquid crystal panel.

The liquid crystal panel is formed by forming an array substrate and a color filter substrate through an array substrate manufacturing process for forming thin film transistors and pixel electrodes, and a color filter substrate manufacturing process for forming color filters and common electrodes, .

There is a problem that the liquid crystal panel released as an end product through the above-described process frequently comes into contact with a human body or an object, or when the liquid crystal panel is subjected to continuous pressure from the outside, Occurs. Further, when the external pressure is continuously applied, there arises a problem that the pixel electrode of the array substrate of the liquid crystal panel and the common electrode of the color filter substrate are short-circuited. A failure occurs in which a desired image is not displayed in the pixel region where the pixel electrode and the common electrode are short-circuited. In addition, in the pixel region where the pixel electrode and the common electrode are short-circuited, a pressing failure or a touch failure occurs.

It is an object of the present invention to provide a liquid crystal panel capable of preventing defects caused by carelessness in use, a manufacturing method thereof, a liquid crystal display device having the same, and a driving method thereof.

It is another object of the present invention to provide a liquid crystal panel capable of improving reliability, a manufacturing method thereof, a liquid crystal display device having the same, and a driving method thereof.

According to an aspect of the present invention, there is provided a liquid crystal panel including first and second substrates, pixel electrodes formed on the first substrate, common electrodes formed on one of the first and second substrates, A plurality of conductors electrically connected to and disconnecting the pixel electrode and the common electrode, the plurality of conductors being formed to be arranged in the form of a warning phrase by being patterned on either one of the first and second substrates, .

According to an aspect of the present invention, there is provided a method of manufacturing a liquid crystal panel, including the steps of preparing a first substrate and a second substrate, forming a pixel electrode on the first substrate, The method comprising the steps of: forming a common electrode on one of the first and second substrates; patterning the first and second substrates; and arranging the pixel electrode and the common electrode electrically And forming a plurality of conductors connecting and disconnecting the plurality of conductors.

According to an aspect of the present invention, there is provided a liquid crystal display device including a liquid crystal panel for displaying a touch failure according to an external pressure applied thereto, and a controller for inputting data corresponding to an image to be displayed on the liquid crystal panel A data driver for converting the data from the input unit into a pixel data voltage and supplying the data to the liquid crystal panel; a touch failure detector for detecting whether or not a touch error occurs in the liquid crystal panel and generating a touch failure control signal according to the result; A warning word generating unit for generating data corresponding to a warning phrase indicating a touch failure of the liquid crystal panel and warning word data from the warning word generating unit according to a touch failure control signal supplied from the touch failure detecting unit, Selects the one of the data from the data And supplies it to the data driver.

According to an aspect of the present invention, there is provided a method of driving a liquid crystal display, including the steps of: inputting data corresponding to an image to be displayed on a liquid crystal panel; generating warning word data to be displayed on the liquid crystal panel; A step of supplying a common voltage to the liquid crystal panel, a step of detecting a touch failure of the liquid crystal panel by receiving a common voltage supplied to the liquid crystal panel, and generating a touch failure control signal according to the detection result, Selecting any one of the warning phrase data and the input data in accordance with the defective control signal, and displaying the selected data.

Other objects, other features, and other advantages of the present invention will become apparent from the detailed description of the embodiments with reference to the attached drawings.

As described above, the liquid crystal panel according to the present invention has ribs formed on a liquid crystal panel according to special phrases or spaced apart from each other by a predetermined distance in each pixel region, so that when pressure is externally applied to the surface of the liquid crystal panel A special phrase " Do not Touch Me! &Quot; So that a warning message such as " In this case, the user checks the warning message displayed on the liquid crystal panel to warn the liquid crystal panel so that the pressure from the outside is no longer applied to the liquid crystal panel, thereby preventing a problem such as a pressing failure or a touch failure, can do. The liquid crystal display device according to the present invention can prevent defects caused by carelessness in use and improve reliability.

Best Mode for Carrying Out the Invention Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a schematic view of a liquid crystal panel according to a first embodiment of the present invention.

1, a liquid crystal panel 102 according to a first exemplary embodiment of the present invention includes an array substrate (TFT substrate) having thin film transistors and pixel electrodes formed in pixel regions defined by intersecting a plurality of gate lines and data lines 120, a color filter substrate 140 on which a color filter layer and a common electrode are formed, and a liquid crystal layer formed between the array substrate 120 and the color filter substrate 140. In the active area A / A on which the image is displayed on the liquid crystal panel 102, a special phrase area in which a plurality of ribs 152 constituting a warning message such as a special phrase Do not Touch Me! (B). That is, the plurality of ribs 152 are patterned on the substrate of the array substrate 120 or the color filter substrate 140 of the liquid crystal panel 102, and a warning message such as a special phrase Do not Touch Me! .

When a pressure is externally applied to the surface of the liquid crystal panel 102 due to the plurality of ribs 152 patterned in the form of a warning message, A warning message can be sent to the user by displaying a phrase.

FIG. 2 is a detailed view of the liquid crystal panel of FIG. 1, and FIG. 3 is a sectional view of the liquid crystal panel of FIG. 2 taken along the cutting lines I to I '.

As shown in FIGS. 2 and 3, a gate line GL and a data line DL intersecting the gate line GL are formed on a first substrate 101. The gate line GL and the data line DL define a pixel region P. A black matrix 142 and red, green and blue color filters 144a, 144b and 144c are formed on a second substrate 103 located above the first substrate 102. [ In each pixel region P, a gate electrode 122 connected to the gate line GL, a source electrode 128 connected to the data line DL, and a source electrode 128 spaced apart from the source electrode 128 A drain electrode 130 is formed. The gate electrode 122 and the source and drain electrodes 128 and 130 together with the semiconductor layer 126 form a thin film transistor TR as a switching element.

A gate insulating layer 122 is formed on the gate electrode 122 and the gate line GL. At this time, the gate insulating layer 122 protects the gate electrode 122 and the gate line GL. A passivation layer 132 is formed on the source and drain electrodes 128 and 130. A pixel electrode 134 made of ITO which is a transparent conductive metal is formed on the passivation layer 132 through a first contact hole H1, Drain electrodes 130 are formed. A pixel insulating layer 136 is formed on the pixel electrode 134. The pixel insulating layer 136 may be formed of the same material as the gate insulating layer 122 and the passivation layer 132 to protect the pixel electrode 134.

In the color filter substrate 140 positioned opposite to the array substrate 140, a grid matrix 142 having a plurality of openings is formed on the second substrate 103, A color filter layer 144 in which green and blue color filter patterns 144a, 144b and 144c are sequentially arranged is formed on a substrate 150. A common electrode 146 made of a transparent conductive metal is formed under the color filter layer 144 And a plurality of column spacers 150 are formed at regular intervals so as to be in contact with the common electrode 146 and the protective layer 132 on the array substrate 120 at the same time. The column spacer 150 maintains a predetermined gap between the lower array substrate 120 and the upper color filter substrate 140 when the liquid crystal panel 102 is formed. In addition, the column spacers 150 are spaced apart from each other on the gate line GL rather than the pixel region P for displaying images in order to prevent the occurrence of defects such as light leakage.

Ribs 152 made of indium tin oxide (ITO), which is a transparent conductive metal, are formed in each of the plurality of pixel regions P. The rib 152 is electrically connected to the pixel electrode 134 through the second contact hole H2. Accordingly, the pixel data voltages supplied to the pixel electrodes 134 are supplied to the ribs 152.

The column spacers 150 are connected to the array substrate 120 and the color filter substrate 140 respectively to maintain a gap while the ribs 152 are formed on the array substrate 120 And is spaced apart from the color filter substrate 140 by a predetermined distance and is not connected to the color filter substrate 140. The height of the ribs 152 is lower than the column spacers 150. The plurality of ribs 152 are patterned and arranged on the pixel region P to form a warning phrase such as Do not Touch Me !.

When the rib 152 is separated from the color filter substrate 140 while maintaining a predetermined gap therebetween but the pressure is externally applied to the surface of the liquid crystal panel 102, And the common electrode 146 of the pixel electrode 140 are connected to each other. The common electrode 146 of the color filter substrate 140 and the common electrode 146 of the color filter substrate 140 are connected to each other through the rib 152. [ The pixel electrode 134 of the pixel electrode 134 is shorted. A bright spot occurs at a portion where the pixel electrode 134 and the common electrode 146 are short-circuited through the plurality of ribs 152. The luminescent spot is generated by the Do not Touch Me! Is displayed on the liquid crystal panel 102 as shown in FIG. On the liquid crystal panel 102, the warning phrase Do not Touch Me! So that the user can be informed that the pressure is applied to the surface of the liquid crystal panel 102.

Figs. 4A to 4F are process sectional views showing the array substrate of Fig. 3 in the order of processes.

4A, a first metal layer is formed on a transparent first substrate 101 and patterned to form a gate line GL and a gate electrode 122 protruding and extending from the gate line GL . A gate insulating layer 124 as a first insulating layer is formed on the entire surface of the first substrate 101 on which the gate electrode 122 and the gate line GL are formed. 4B, a semiconductor layer 126 formed of a pure amorphous silicon layer 126a and an impurity amorphous silicon layer 126b is formed on the first substrate 101 on which the gate insulating layer 124 is formed do. A second metal layer is formed on the first substrate 101 on which the semiconductor layer 126 is formed and patterned to form source and drain electrodes 128 and 130 and data extending from the source and drain electrodes 128 and 130 A line DL is formed.

A protective layer 132 as a second insulating layer is formed on the first substrate 101 on which the source and drain electrodes 128 and 130 and the data line DL are formed. A first contact hole H1 is formed to expose a part of the drain electrode 130 by patterning the passivation layer 132. [ A conductive metal selected from indium-tin-oxide (ITO) or indium-zinc-oxide (IZO) is sequentially formed on the passivation layer 132 and patterned to form the drain electrode 130 The pixel electrode 132 to be connected is formed. A pixel insulating layer 136, which is a third insulating layer, is formed on the entire surface of the first substrate 101 on which the pixel electrodes 132 are formed. The pixel insulating layer 136 has the same function as the gate insulating layer 122 and the passivation layer 136 and may be formed of the same material. A second contact hole H2 exposing a part of the pixel electrode 134 is formed on the first substrate 101 on which the pixel insulating layer 126 is formed.

A transparent conductive metal layer 160 such as indium-tin-oxide (ITO) is formed on the first substrate 101 on which the pixel insulating layer 136 is formed, as shown in FIG. 4D. A PR layer 165 is formed by applying a photo-resist (hereinafter referred to as PR) layer on the first substrate 101 on which the transparent conductive metal layer 160 is formed. The mask 170 is placed on the first substrate 101 on which the PR layer 165 is formed. The mask 170 is composed of a blocking region A and a transmission region B. The blocking region A of the mask 170 is correspondingly positioned on a region where a part of the pixel electrode 134 is exposed. The PR layer 165 is a warning text phrase, Do not Touch Me! As shown in FIG.

Next, an exposuer for irradiating light from above the mask 170 and a continuous development process are performed to expose a part of the pixel electrode 134, as shown in FIG. 4E, A PR pattern 165 is formed on the region where the pattern is formed. After the transparent conductive metal layer 160 exposed between the PR patterns 165 is etched by wet etching and the PR pattern 165 is removed, a rib 152 as shown in FIG. 4F is formed. The rib 152 is electrically connected to the pixel electrode 134 through the second contact hole H2. At this time, the ribs 152 may be formed of conductive balls. The ribs 152 may be a warning text phrase Do not Touch Me! And is arranged on the pixel region P. In this case, The pixel insulating layer 135 serves to prevent the pixel electrode 132 from being corroded by a mask process for forming the ribs 152.

The ribs 152 may be formed on the array substrate 120 as described above, but may also be formed on the color filter substrate 140 (FIG. 3) shown in FIG. Specifically, the ribs 152 are formed on the color filter substrate 140 at portions corresponding to the portions where the pixel electrodes 132 of the array substrate 120 are formed. In this case, the ribs 152 may be electrically connected to the common electrode 146 of the color filter substrate 140 through the contact holes.

When pressure is externally applied to the surface of the liquid crystal panel 102 on which the ribs 152 are formed, the liquid crystal panel 102 is formed on the array substrate 120 and the color filter substrate 140 through the ribs 152, The electrode 134 and the common electrode 146 are short-circuited. A pixel region of a portion where the pixel electrode 134 and the common electrode 146 are shorted through the rib 152 is generated as a luminescent spot. The luminescent spot is displayed on the liquid crystal panel 102 as Do not Touch Me! As shown in FIG. This is because the ribs 152 do not touch Me! And is arranged on the pixel region P so as to be patterned.

When the liquid crystal panel according to the present invention is applied with pressure from the outside on the surface, the pixel electrode 134 and the common electrode 146 are short-circuited through the rib 152, Touch Me! To be displayed on the liquid crystal panel 102. In this case, the user confirms the warning phrase Do not Touch Me! Displayed on the liquid crystal panel 102 and warns that the liquid crystal panel 102 is no longer subjected to pressure, It is possible to prevent occurrence of a touch failure. It is possible to prevent the liquid crystal panel 102 from being damaged or the touch failure by preventing the liquid crystal panel 102 from being damaged, thereby improving the reliability.

In addition, the liquid crystal display according to the present invention allows the user to remove the pressure applied on the liquid crystal panel 102 after confirming the Do not Touch Me !, which is displayed on the liquid crystal panel 102, A desired image can be displayed by preventing bright spots.

5 is a view illustrating a liquid crystal display device according to another embodiment of the present invention.

5, the liquid crystal display according to the present invention includes a liquid crystal panel 202 in which a plurality of gate lines GL1 to GLn and a plurality of data lines DL1 to DLm are arranged to display an image, A gate driver 104 for driving the plurality of gate lines GL1 to GLn; a data driver 106 for driving the plurality of data lines DL1 to DLm; A common voltage generating unit 110 for supplying a common voltage Vcom to the liquid crystal panel 202; a touch failure detecting unit 110 for detecting a touch failure of the liquid crystal panel 202; A warning text generator 114 for generating data corresponding to the warning text, and data of any one of the data supplied from the external system and the warning text data generated by the warning text generator 114 And the selected data And a selector 116 to be supplied to the data driver 106.

The liquid crystal panel 202 includes pixels formed in regions divided by a plurality of gate lines GL1 to GLn and a plurality of data lines DL1 to DLm. Each of these pixels includes a thin film transistor (TFT) formed at an intersection between a corresponding gate line GL and a corresponding data line DL and a thin film transistor TFT formed between the thin film transistor TFT and the common electrode Vcom (Clc). The thin film transistor TFT switches the pixel data voltage to be supplied to the corresponding liquid crystal cell Clc from the corresponding data line DL in response to the gate scan signal on the corresponding gate line GL. The liquid crystal cell Clc is composed of a common electrode facing the liquid crystal layer and a pixel electrode connected to the thin film transistor TFT. This liquid crystal cell Clc charges the pixel data voltage supplied via the corresponding thin film transistor (TFT). In addition, the voltage charged in the liquid crystal cell Clc is updated each time the corresponding thin film transistor TFT is turned on.

In addition, each of the pixels on the liquid crystal panel 102 has a storage capacitor Cst connected between the thin film transistor TFT and the previous gate line. The storage capacitor Cst minimizes the natural reduction of the voltage charged in the liquid crystal cell Clc.

The liquid crystal panel 202 has the same structure as the liquid crystal panel 102 shown in FIG. 3, but the ribs (not shown) formed on the liquid crystal panel 202 correspond to the liquid crystal panel Is not patterned in the form of a warning phrase like the ribs 152 in Fig. 3 (102 in Fig. 3). The ribs (not shown) formed in the liquid crystal panel 202 may be formed in a conductive ball shape.

The gate driver 104 sequentially supplies a plurality of gate scan signals to the plurality of gate lines GL1 to GLn in response to the gate control signals GCS from the timing controller 108. [ The plurality of gate scan signals cause the plurality of gate lines GL1 to GLn to sequentially enable one horizontal sync signal interval.

In response to the data control signals DCS from the timing controller 108, the data driver 106 generates a plurality of pixel data voltages (Vs) each time one of the plurality of gate lines DL1 to DLm is enabled And supplies them to the plurality of data lines DL1 to DLm on the liquid crystal panel 102, respectively. To this end, the data driver 106 inputs pixel data (Data) from an external system one line at a time, and supplies pixel data (Data) of one line inputted using a gamma voltage set to pixel data Voltages.

The timing controller 108 receives a data clock DCLK, a horizontal synchronizing signal Hsync, and a vertical synchronizing signal from an external system (for example, a graphics module of a computer system or a video demodulation module of a television receiving system) (GCS) and data control signals (DCS) using a data enable signal (Vsync) and a data enable signal (DE). The gate control signals GCS are supplied to the gate driver 104 and the data control signals DCS are supplied to the data driver 106.

The common voltage generator 110 supplies a common voltage Vcom to a common voltage supply line (not shown) arranged on the liquid crystal panel 202. The common voltage Vcom supplied to the common voltage supply line is supplied to the common electrode of the color filter substrate of the liquid crystal panel 202.

The touch failure detector 112 detects a touch failure of the liquid crystal panel 202. Specifically, the touch failure detector 112 detects the presence or absence of an abnormality in the common voltage Vcom by feeding back the common voltage Vcom supplied to the liquid crystal panel 202 and outputs a touch having a different logical value in each case Thereby generating a defective control signal. The touch failure detector 112 receives the common voltage Vcom supplied to the liquid crystal panel 102 using the common voltage Vcom generated by the common voltage generator 110 as a reference value, (Vcom) and serves as a comparator for generating a touch failure control signal according to the comparison result.

When the common voltage fed back from the liquid crystal panel 202 and the common voltage Vcom are different from each other, the touch failure detector 112 generates a touch failure control signal having a specific logic (e.g., High). The touch failure detector 112 generates a touch failure control signal of a base logic (e.g., Low) when the feedback common voltage is equal to the common voltage Vcom as the reference value. The touch failure control signal of the specific logic high and base logic low generated by the touch failure detector 112 is supplied to the selector 116.

When the common voltage fed back from the liquid crystal panel 202 is different from the common voltage Vcom as the reference value, when the external pressure is applied to the surface of the liquid crystal panel 202, the array substrate and the color filter substrate are short- If you say. When the pixel electrode of the array substrate and the common electrode of the color filter substrate are short-circuited through ribs (not shown) formed on the liquid crystal panel 202, the common electrode of the liquid crystal panel 102 The feedback common voltage is different from the common voltage Vcom which is the reference value.

A common voltage Vcom is supplied to the common electrode of the color filter substrate and a pixel data voltage from the data driver 106 is supplied to the pixel electrode of the array substrate. the pixel data voltage may affect the common electrode. Therefore, the level of the common voltage Vcom supplied to the common electrode of the color filter substrate is changed, and the voltage fed back from the common electrode is different from the common voltage Vcom generated by the common voltage generating unit 110 .

The warning phrase generator 114 generates a warning message Do not touch me! To display a warning message on the liquid crystal panel 202 when there is an abnormality of the common voltage fed back from the common electrode of the liquid crystal panel 202. [ Are stored. The light warning phrase generation unit 114 supplies the warning phrase data to the selection unit 116 in synchronization with the control signal supplied from the timing controller 108.

The selector 116 selects either one of data supplied from an external system and warning word data supplied from the warning word generator 114 in accordance with the touch failure control signal supplied from the touch failure detector 112 And outputs the selected data to the data driver 106. When the touch failure control signal of a specific logic high is supplied from the touch failure detector 112, the selector 116 selects the warning phrase data supplied from the warning word generator 114, 106). The warning phrase data supplied to the data driver 106 is displayed on the liquid crystal panel 102. Warning phrase data of Do not Touch Me! Is displayed on the liquid crystal panel 102 to allow the user to recognize that pressure is applied on the liquid crystal panel 102. Accordingly, the user removes the pressure applied on the liquid crystal panel 102 and prevents problems such as poor pressing or touch failure that may occur when the pressure continues.

When the low touch failure control signal is supplied from the touch failure detector 112, the selector 116 selects the data input from the external system and supplies the selected data to the data driver 106 . In this case, the data supplied to the data driver 106 is displayed on the liquid crystal panel 202 as an image desired by the user.

As described above, the touch failure detector 112 receives the voltage supplied from the common electrode of the liquid crystal panel 202 and receives the common voltage Vcom generated by the common voltage generator 110 and the feedback voltage To determine whether there is an abnormality. When external pressure is applied to the liquid crystal panel 202, the pixel electrode and the common electrode are short-circuited through the ribs formed on the liquid crystal panel 202, so that the operator can use the voltage fed back from the common electrode It is determined whether a pressure is externally applied to the liquid crystal panel 202.

The liquid crystal display device according to the present invention includes a rib that is patterned on a liquid crystal panel according to a warning phrase or is formed at a predetermined interval in each pixel region so that when pressure is externally applied to the surface of the liquid crystal panel, On the liquid crystal panel, Do not Touch Me! To be displayed. In this case, the user confirms the warning message displayed on the liquid crystal panel and warns the liquid crystal panel so that the pressure from the outside is no longer applied to the liquid crystal panel, thereby preventing problems such as poor pressure or touch failure that may occur when the pressure continues. can do. The liquid crystal display device according to the present invention can improve the reliability of the product by eliminating the pressure failure or the touch failure of the liquid crystal panel.

In addition, the liquid crystal display device according to the present invention allows the user to display the Do not Touch Me! It is possible to display a desired image on the liquid crystal panel by eliminating the pressure applied to the liquid crystal panel by preventing the luminescent spot generated by the short circuit between the pixel electrode and the common electrode.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, many variations and modifications may be made without departing from the spirit and scope of the invention. Accordingly, It will be apparent that modifications and other equivalent embodiments are possible.

1 is a schematic view of a liquid crystal panel according to a first embodiment of the present invention.

FIG. 2 is a detailed view of the liquid crystal panel of FIG. 1. FIG.

3 is a cross-sectional view of the liquid crystal panel of Fig. 2 cut along the cutting lines I-I ';

FIGS. 4A to 4F are process cross-sectional views illustrating the array substrate of FIG.

5 is a view illustrating a liquid crystal display according to another embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS FIG.

101: first substrate 102, 202: liquid crystal panel

103: second substrate 104: gate driver

106: Data driver 108: Timing controller

110: common voltage generation unit 112: common voltage abnormality detection unit

114: memory element 116:

120: array substrate 122: gate electrode

124: gate insulating layer 126: semiconductor layer

126a: pure amorphous silicon layer 126b: impurity amorphous silicon layer

128: source electrode 130: drain electrode

132: protective layer 134: pixel electrode

136: pixel insulating layer 140: color filter substrate

142: black matrix 144: color filter layer

146: common electrode 150: column spacer

152: rib 160: transparent conductive metal layer

165: PR layer 170: mask

Claims (12)

A first substrate having a plurality of pixel regions defined by a gate line and a data line; A second substrate facing the first substrate; A pixel electrode formed on the first substrate; A common electrode formed on the second substrate; And And a plurality of conductors formed on the first substrate so as to be arranged in the form of a warning phrase and electrically connecting and disconnecting the pixel electrode and the common electrode depending on whether external pressure is applied, Wherein the conductor is formed in each of a plurality of pixel regions. The method according to claim 1, Wherein the plurality of conductors are formed in the form of one of a patterned conductive rib and a conductive ball. The method according to claim 1, Further comprising: an insulating layer disposed between the pixel electrode and the plurality of conductors to prevent the pixel electrodes from being corroded by the plurality of conductors. Preparing a first substrate having a plurality of pixel regions defined by a gate line and a data line; Preparing a second substrate to be disposed opposite to the first substrate; Forming a pixel electrode on the first substrate; Forming a common electrode on the second substrate; And Forming a plurality of conductors that are patterned on the first substrate and arranged in the form of a warning phrase to electrically connect and disconnect the pixel electrode and the common electrode according to whether external pressure is applied, Wherein the conductor is formed in a plurality of pixel regions, respectively. 5. The method of claim 4, Wherein the plurality of conductors are formed in the form of one of a patterned conductive rib and a conductive ball. 5. The method of claim 4, And forming an insulating layer between the pixel electrode and the plurality of conductors to prevent the pixel electrodes from being corroded by the plurality of conductors. delete delete delete The method according to claim 1, Wherein the conductor is supplied with a pixel data voltage supplied to the pixel electrode. 11. The method of claim 10, Wherein when the pixel electrode and the common electrode are electrically connected, the common electrode and the pixel electrode are short-circuited. The method according to claim 1, And a column spacer is further formed on the gate line so as to have a predetermined distance therebetween.

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