Thin film transistor array panel, liquid crystal display, and method to repair the same

The present invention relates to a thin film transistor array panel, a liquid crystal display, and a method capable of reducing an effect on neighboring pixels in a process of repairing a pixel defect. The thin film transistor array panel may include: a thin film transistor connected to a gate line and a data line to define a pixel area; a pixel electrode formed in the pixel area and connected to the thin film transistor; and a storage electrode including a first portion overlapping the data line between two adjacent gate lines. The storage electrode may also include a second portion connected to the first portion and enclosing an edge of the pixel area except for a region where the first portion is formed. The storage electrode may be branched between pixel electrodes respectively formed in two adjacent pixel areas.

CROSS REFERENCE TO RELATED APPLICATION

This application claims priority from and the benefit of Korean Patent Application No. 10-2010-0095177, filed on Sep. 30, 2010, which is hereby incorporated by reference for all purposes as if fully set forth herein.

BACKGROUND OF THE INVENTION

1. Field of the Invention

Exemplary embodiments of the present invention relate to a thin film transistor array panel, a liquid crystal display, and a repairing method capable of reducing an influence generated between adjacent pixels in a process of repairing deteriorations.

2. Discussion of the Background

A liquid crystal display (LCD) is a widely-used flat panel display that includes two electrode-containing substrates and a liquid crystal layer interposed therebetween. By applying a signal to the electrodes, the amount of light transmitted by rearranging liquid crystal molecules of the liquid crystal layer can be controlled.

At least one of the substrates may include a thin film transistor (TFT) array panel used as a circuit board to independently drive each pixel in the liquid crystal display or an organic light emitting device.

The TFT array panel may include a gate line transmitting a gate signal; a data line transmitting a data signal and intersecting the gate line; a thin film transistor connected to the gate line and the data line; and a pixel electrode connected to the thin film transistor.

When signal lines of the liquid crystal display are disconnected or shorted, a corresponding pixel may need to be repaired. After being repaired, however, the repaired pixel and a pixel neighboring the repaired pixel may have a higher or lower luminance than that of a normal pixel.

SUMMARY OF THE INVENTION

Exemplary embodiments of the present invention provide a liquid crystal display, a thin film transistor array panel capable of reducing distortion of a potential charged to an adjacent pixel electrode by a data signal input to a storage electrode used for repairing when pixel deterioration due to a disconnection of a data line is generated, and a repairing method thereof.

Exemplary embodiments of the present invention also provide a liquid crystal display, a thin film transistor array panel capable of reducing the effect on the adjacent pixel electrode by the storage electrode used for repairing when a pixel deterioration due to a short of a pixel electrode and a storage electrode is generated, and a repairing method thereof are provided.

Exemplary embodiments of the present invention also provide a liquid crystal display, a thin film transistor array panel capable of stably executing a repairing process, and a repairing method thereof are provided.

Exemplary embodiments of the present invention disclose a thin film transistor array panel including a substrate, a gate line, a data line, a thin film transistor, a pixel electrode, and a storage electrode. The data line intersects the gate line. The gate line and the data line are formed on the substrate and define a pixel area. The thin film transistor is connected to the gate line and the data line. The pixel electrode is formed in the pixel area and connected to the thin film transistor. The storage electrode includes a first portion overlapping the data line between two adjacent gate lines, and a second portion connected to the first portion and enclosing an edge of the pixel area except for a region where the first portion is formed. The storage electrode is branched between the pixel electrodes respectively formed in two adjacent pixel areas.

Exemplary embodiments of the present invention disclose a liquid crystal display includes a first substrate, a second substrate facing the first substrate, a gate line and a data line intersecting the gate line, a thin film transistor, a pixel electrode, and a storage electrode. The gate line and the data line define a pixel area on the first substrate. The thin film transistor is connected to the gate line and the data line. The pixel electrode is connected to the thin film transistor in the pixel area. The storage electrode includes a first portion overlapping the data line between two adjacent gate lines, and a second portion connected to the first portion and enclosing an edge of the pixel area except for a region where the first portion is formed. The storage electrode is branched between the pixel electrodes respectively formed in two adjacent pixel areas.

Exemplary embodiments of the present invention disclose a method to repair a data line in a thin film transistor array panel, the method includes if the data line is disconnected at a disconnection portion, irradiating a laser on at least one side of the disconnected portion of the data line to short the data line and a storage electrode; and irradiating the laser to separate a portion shorted to the data line among the storage electrode to be disconnected. The storage electrode includes a first portion overlapping the data line between two adjacent gate lines and a second portion connected to the first portion and enclosing an edge of a pixel area except for a region where the first portion is formed. The pixel area is defined by the data line and a gate line. A thin film transistor is coupled to the data line, the gate line, and at least one of the pixel electrodes. The two adjacent pixel areas are defined by the two adjacent gate lines and two adjacent data lines, and the storage electrode is branched between pixel electrodes respectively formed in the two adjacent pixel areas.

Exemplary embodiments of the present invention disclose a method of repairing a short of a pixel electrode and a storage electrode. The method includes irradiating laser to separate a portion shorted to the pixel electrode among the storage electrode to be disconnected. The storage electrode includes a first portion overlapping the data line between two adjacent gate lines and a second portion connected to the first portion and enclosing an edge of a pixel area except for a region where the first portion is formed. The pixel area is defined by the data line and a gate line. A thin film transistor is coupled to the data line, the gate line, and the pixel electrode. The two adjacent pixel areas are defined by the two adjacent gate lines and two adjacent data lines, and the storage electrode is branched between pixel electrodes respectively formed in the two adjacent pixel areas

Exemplary embodiments of the present invention disclose a method of repairing a disconnection of a data line. The method includes irradiating a laser on at least one side of a disconnected portion of the data line to short the data line and a storage electrode, and irradiating the laser to separate a portion shorted to the data line among the storage electrode to be disconnected. The storage electrode includes a first portion overlapping the data line between two adjacent gate lines and a second portion connected to the first portion and enclosing an edge of a pixel area except for a region where the first portion is formed. The pixel area is defined by the data line and a gate line. A thin film transistor is coupled to the data line, the gate line, and a pixel electrode. The two adjacent pixel areas are defined by the two adjacent gate lines and two adjacent data lines, and the storage electrode is branched between pixel electrodes respectively formed in the two adjacent pixel areas.

Exemplary embodiments of the present invention disclose a method of repairing a short of a pixel electrode and a storage electrode. The method includes irradiating a laser to separate a portion shorted to the pixel electrode among the storage electrode to be disconnected. The storage electrode includes a first portion overlapping a data line between two adjacent gate lines and a second portion connected to the first portion and enclosing an edge of a pixel area except for a region where the first portion is formed. The pixel area is defined by the data line and a gate line. A thin film transistor is coupled to the data line, the gate line, and the pixel electrode. The two adjacent pixel areas are defined by the two adjacent gate lines and two adjacent data lines, and the storage electrode is branched between pixel electrodes respectively formed in the two adjacent pixel areas.

DETAILED DESCRIPTION OF THE ILLUSTRATED EMBODIMENTS

Exemplary embodiments of the present invention are described hereinafter with reference to the accompanying drawings. As those skilled in the art would realize, the exemplary embodiments may be modified in various ways, without departing from the spirit or scope of the present invention.

In the drawings, the sizes and relative sizes of layers, films, panels, and regions may be exaggerated for clarity. Like reference numerals designate like elements throughout the specification. It will be understood that when an element such as a layer, film, region, or substrate is referred to as being “on”, “connected to”, or “coupled to” another element or layer, it can be directly on, connected or coupled to the other element or layer or intervening elements or layers may be present. In contrast, when an element is referred to as being “directly on,” “directly connected to” or “directly coupled to” another element or layer, there may be no intervening elements or layers present.

Hereinafter, a liquid crystal display according to exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

Referring toFIG. 1,FIG. 2,FIG. 3, andFIG. 4, a liquid crystal display (LCD) may include a thin film transistor array panel100, a common electrode panel200, and liquid crystal layer (not shown) interposed between the thin film transistor array panel100and the common electrode panel200.

The thin film transistor array panel100may include a first substrate110, gate lines121and data lines171intersecting each other on the first substrate110to define pixel areas, a thin film transistor (TFT) connected to the gate line121and the data line171, a pixel electrode191connected to the thin film transistor (TFT) of the pixel area, and a storage electrode131formed at the lower portion of the data line171and the edge of the pixel area.

The gate line121may be formed in one direction on the first substrate110, and may include a gate electrode124protruded from the gate line121.

The data line171may be formed in the direction intersecting the gate line121, and may include a source electrode173and a drain electrode175. The source electrode173may protrude from the data line171towards the gate electrode124, and the drain electrode175may be formed, at least in part, on the gate electrode124and separated from the source electrode173by a predetermined interval.

A gate insulating layer140may be formed between the gate line121and the data line171, and although not shown, a semiconductor layer may be formed on the gate insulating layer140on the gate electrode124. The gate electrode124, the semiconductor layer, the source electrode173, and the drain electrode175can form the thin film transistor (TFT).

A passivation layer180may be formed between the data line171and the pixel electrode191. The pixel electrode191may be connected to the drain electrode175of the thin film transistor (TFT) through a contact hole181of the passivation layer180. The data lines171, gate lines121, semiconductor layer, pixel electrode191, contact hole181, passivation layer180are known elements in the art, and therefore a detailed description thereof is not provided herein.

The storage electrode131may include a first portion131aand a second portion131b. The first portion131amay overlap the data line171between two gate lines121. The second portion131bmay enclose the edge of the pixel area and may be connected to the first portion131a. In some cases, the first portion131amay be disconnected at a disconnection portion134thereby dividing the first portion131ainto two portions. The disconnection portion134may be positioned at the center between two adjacent gate lines121. In general, the disconnection portion134may be located at any location between two adjacent gate lines121. In some cases, the first portion131amay be divided into more than two portions. In general, the first portion131amay be divided into any suitable number of portions. In some cases, the first portion131amay not be divided.

In some cases, the data line171overlapping the disconnection portion134may have a wider width than a width of the data line171that does not overlap the first portion131aof the storage electrode131. The storage electrode131may be made of any suitable material including, for example, an opaque metal to prevent light leakage. Light leakage may occur in or around the disconnection portion134. In some cases, the data line171overlapping the disconnection portion134may initially be formed with the same width of the first portion131aof the storage electrode131. The width of the data line171on the disconnection portion134may then be widened thereby preventing light leakage.

In general, the liquid crystal display may have any suitable aperture ratio. In some cases, the aperture ratio of the liquid crystal display may be about 54.7% with the expansion of the width of the data line171. The aperture ratio of the liquid crystal display without the disconnection portion134and the expansion of the width of the data line171may also be about 54.7%. Accordingly, the aperture ratio is not reduced due to the expansion of the width of the data line171.

When repairing a data line171to repair a disconnection caused by irradiation of a laser, the width of a repairing portion171amay be expanded. That is, the width of the repairing portion171amay be wider than the width of the data line171overlapping the first portion131aof the storage electrode131. In some cases, the width of the repairing portion171amay be narrower than the width of the data line171overlapping the disconnection portion134. The repairing portion171amay be the upper and lower portions of the data line171adjacent to the disconnection portion134and the portion of the data line171overlapping the portion connected to the first portion131aand the second portion131b.

The storage electrodes131of each pixel area may be connected to each other. The second portions131bof the storage electrodes131positioned at two adjacent pixel areas via the gate line121may be connected by a bridge135. The storage electrode131may be made in the same layer as at least one of the gate line121, the gate electrode124, and the gate insulating layer140. The passivation layer180may have a contact hole182where the second portion131bof the storage electrode131and the bridge135connect.

The common electrode panel200may include a second substrate210, a light blocking member220formed on the second substrate210and corresponding to the edge of the pixel area of the first substrate110, a color filter230formed on the second substrate210and corresponding to the pixel area of the first substrate110, and a common electrode270formed on the second substrate210. In some cases, the common electrode270may be formed on the entire second substrate210.

The light blocking member220may be formed corresponding to the gate line121, the data line171, the thin film transistor (TFT), and the storage electrode131to prevent light leakage.

The color filter230may be used to realize color of the liquid crystal display. For example, red, blue, and/or green color filters230may be disposed in any suitable manner, including for example, repeatedly disposing the red, blue, and green color filters230on the second substrate210.

The common electrode270may be oriented to face the pixel electrode191formed on the first substrate110to generate an electric field in the liquid crystal layer interposed between the TFT array panel100and the common electrode panel200. The electric field may be generated according to voltages applied to the pixel electrode191and the common electrode270such that the arrangement of the liquid crystal molecules is determined and the polarization of incident light is controlled to display an image.

Hereinafter, a liquid crystal display according to the exemplary embodiments of the present invention will be described with reference toFIG. 5,FIG. 6,FIG. 7, andFIG. 8.

Referring toFIG. 5,FIG. 6,FIG. 7, andFIG. 8, a liquid crystal display may include a thin film transistor array panel100and a common electrode panel200facing the thin film transistor array panel100. A liquid crystal layer (not shown) may be interposed between the thin film transistor array panel100and the common electrode panel200.

The thin film transistor array panel100may include the first substrate110, the gate line121, the data line171, the thin film transistor (TFT), the pixel electrode191, and the storage electrode131as described above. The storage electrode131may include the first portion131aand the second portion131b. The first portion131amay include the disconnection portion134.

However, contrary to the exemplary embodiments illustrated inFIG. 1,FIG. 2,FIG. 3, andFIG. 4, the data line171overlapping the disconnection portion134inFIG. 5,FIG. 6,FIG. 7, andFIG. 8may be formed to have the same width as the width of the repairing portion171a. Also, the data line171overlapping the disconnection portion134may be formed to have the same width as the width of the data line171overlapping the first portion of the storage electrode131. For example, inFIG. 1,FIG. 2,FIG. 3, andFIG. 4, the width of the data line171expanded to prevent the light leakage on the disconnection portion134; however, inFIG. 5,FIG. 6,FIG. 7, andFIG. 8, the light leakage can be prevented through other means such that it is not necessary to expand the width of the data line171.

The common electrode panel200may include the second substrate210, the light blocking member220, the color filter230, and the common electrode270as described above.

However, contrary to the exemplary embodiments illustrated inFIG. 1,FIG. 2,FIG. 3, andFIG. 4, the light blocking member220overlapping the disconnection portion134inFIG. 5,FIG. 6,FIG. 7, andFIG. 8may have a wider width than the width of the light blocking member220overlapping the first portion131aof the storage electrode131. Also, the light blocking member220overlapping the disconnection portion134may have a wider width than the width of the first portion131aof the storage electrode131. That is, the width of the light blocking member220corresponding to the disconnection portion134may be expanded such that the light leakage in or around the disconnection portion134may be prevented.

In general, the liquid crystal display may have any suitable aperture ratio. In some cases, the aperture ratio of the liquid crystal display with the disconnection portion134described with reference toFIG. 5,FIG. 6,FIG. 7, andFIG. 8may be about 54.3%. The aperture ratio of the liquid crystal display without the disconnection portion134and the expansion of the width of the data line171may be approximately 54.7%. Accordingly, the aperture ratio may be negligibly, but slightly changed due to expansion of the width of the light blocking member220.

Hereinafter, a liquid crystal display according to exemplary embodiments of the present invention will be described with reference toFIG. 9, which is a top plan view of a thin film transistor array panel.

Referring toFIG. 9, a liquid crystal display may include a thin film transistor array panel100and a common electrode panel (not shown) facing thin film transistor array panel100. A liquid crystal layer (not shown) may be interposed between the thin film transistor array panel100and the common electrode panel200.

The thin film transistor array panel100may include the first substrate110, the gate line121, the data line171, the thin film transistor (TFT), the pixel electrode191, and the storage electrode131as described above with reference toFIG. 1,FIG. 2,FIG. 3, andFIG. 4.

Referring toFIG. 9, two pixel areas may be defined by two adjacent gate lines121and two adjacent data lines171, and the pixel electrode191may be formed in each pixel area. The pixel electrode191may not overlap the storage electrode131at all the vertexes of the pixel area. For example, the storage electrode131may be branched between the pixel electrodes191of two adjacent pixel areas. When a disconnection defect of the data line171or a shorting defect between the pixel electrode191and the storage electrode131is generated, the storage electrode131may be disconnected by irradiating, using a laser, storage electrode131that does not overlap the pixel electrode191under the repairing process.

The storage electrode131may include the first portion131aand the second portion131b; however, contrary to the exemplary embodiments illustrated inFIG. 1,FIG. 2,FIG. 3, andFIG. 4, the disconnection portion134may be formed on the lower end of the first portion131a. For example, the lower end of the first portion131amay not be connected to the second portion131b, but the upper end of the first portion131amay be connected to the second portion131b. Accordingly, the upper end of the first portion131amay be disconnected from the second portion131bthrough laser irradiation while the lower end of the first portion131amay already be disconnected from the second portion131bunder the repairing processing at the portion overlapping the data line171.

The repairing portion171amay be shorted in the data line171under the repairing processing. The width of the repairing portion171amay be expanded such that connection through the laser irradiation is easy. That is, the width of the repairing portion171amay be wider than the portion that does not overlap the first portion131aof the storage electrode131. The repairing portion171amay be the upper portion of the first portion131aneighboring the disconnection portion134.

The first portion131aof the storage electrode131and the pixel electrode191may overlap each other, and the overlapping width may be less than 3.5 um. In some cases, the overlapping width of the first portion131aand the pixel electrode191may be reduced to 3.5 um from 4.5 um such that the effect of the data signal flowing to the first portion131aused for repairing the disconnection defect of the data line171may be reduced on the pixel electrode191. In general, the overlapping width may be any suitable width.

Hereinafter, a method of repairing a disconnection of a data line of a liquid crystal display according to exemplary embodiments of the present invention will be described.

FIG. 10is a top plan view showing a method of repairing a disconnection of a data line of the liquid crystal display described with reference toFIG. 1,FIG. 2,FIG. 3, andFIG. 4.

Referring toFIG. 10, when a defect of the data line171disposed at an upper side relative to the disconnection portion134being disconnected is generated, the signal transmitted through the data line171may not be transmitted to the lower side of a disconnection defect portion320.

The repairing portions171adisposed on the upper and/or lower sides of the disconnection defect portion320may be irradiated by a laser340for the data line171and the first portion131aof the storage electrode131to be connected such that the signal applied to the data line171may be transmitted through the storage electrode131.

Next, to electrically disconnect the second portion131bconnected to the first portion131aof the storage electrode131used for the repair, laser from a laser330may be irradiated on the second portion131bof the storage electrode131that does not overlap the data line171. The laser330may irradiate laser on both sides of the storage electrode131used for the repair and overlapping of the data line171.

Hereinafter, a method of repairing a disconnection of a data line of a liquid crystal display according to exemplary embodiments of the present invention will be described.

FIG. 11is a top plan view showing a method of repairing a disconnection of a data line of the liquid crystal display described with reference toFIG. 5,FIG. 6,FIG. 7, andFIG. 8.

Referring toFIG. 11, a repair may be executed using the same method as described with reference to inFIG. 10; however, inFIG. 11, the defect of the data line171may be generated on a lower side relative to the disconnection portion134being disconnected.

A laser340may irradiate laser on the repairing portion171adisposed on the upper and/or lower sides of the disconnection defect portion320to connect the data line171and the first portion131aof the storage electrode131. A laser330may irradiate laser on the second portion131bconnected to the first portion131used for the repair in the storage electrode131to be electrically separated for the disconnection.

When repairing the disconnection of the data line in the liquid crystal displays as described with reference toFIG. 10andFIG. 11, the effect on neighboring pixels can be described in comparison to a liquid crystal display without a disconnection portion.

If a repair for a disconnection defect of a data line is executed in a liquid crystal display without a disconnection portion, an entire first portion of the storage electrode overlapping the data line may be used. In contrast, in the liquid crystal display described with reference toFIG. 10andFIG. 11, the first portion131aof the storage electrode131may include a disconnection portion134such that the upper half of the first portion131aof the storage electrode131may be used for repairing when the upper portion of the data line171with reference to the disconnection portion134is disconnected. Alternatively, the lower half of the first portion131aof the storage electrode131may be used for repairing when the lower portion of the data line171with reference to the disconnection portion134is disconnected.

The degree of distortion of the potential charged to the pixel electrode191may be described by a ratio of the first storage capacitance Cst1and the second storage capacitance Cst2. The first storage capacitance Cst1may be the storage capacitance between the storage electrode131used for the repair and the pixel electrode919. The second storage capacitance Cst2may be the storage capacitance between the storage electrode131that is not used for the repair and the pixel electrode191. As the first storage capacitance Cst1increases, the second storage capacitance Cst2may decrease, and therefore, the potential of the corresponding pixel may be distorted. As the ratio (Cst1/Cst2) of the first storage capacitance Cst1to the second storage capacitance Cst2is decreased, the effect on the corresponding pixel may be minimized.

In a liquid crystal display without the disconnection portion, the first storage capacitance Cst1may be about 661 pF to 905 pF, and the ratio (Cst1/Cst2) of the first storage capacitance Cst1to the second storage capacitance Cst2may be about 32% to 36%. In contrast, in the liquid crystal display described with reference toFIG. 1,FIG. 2,FIG. 3,FIG. 4,FIG. 5,FIG. 6,FIG. 7,FIG. 8,FIG. 10, andFIG. 11, the first storage capacitance Cst1may be decreased to about 270 pF, and the ratio (Cst1/Cst2) of the first storage capacitance Cst1to the second storage capacitance Cst2may be decreased to 14% such that the effect on the corresponding pixel may be decreased to about ⅓.

Hereinafter, a method of repairing a disconnection of a data line171of the liquid crystal display described with reference toFIG. 9will be described with reference toFIG. 12.

Referring toFIG. 12, a laser340may irradiate light on the repairing portion171adisposed on the upper and/or lower sides of the disconnection defect portion320to connect the data line171and the first portion131aof the storage electrode131. A laser330may irradiate light for the second portion131bconnected to the first portion131aused for the repair in the storage electrode131to be separated for the disconnection.

Hereinafter, a method of repairing a short of a pixel electrode191and a storage electrode131of the liquid crystal display described with reference toFIG. 1,FIG. 2,FIG. 3, andFIG. 4will be described with reference toFIG. 13.

Referring toFIG. 13, when the first portion131aof the storage electrode131that is positioned at the upper side relative to the disconnection portion134and the pixel electrode191that is positioned at the right side of the disconnection portion134are shorted, the pixel electrode191and the storage electrode131may be electrically connected to each other through a shorting defect portion322. However, the voltage of the signal input to the pixel electrode191and the voltage applied to the storage electrode131may not be the same.

To electrically separate the second portion131bconnected to the first portion131aof the storage electrode131including the shorting defect portion322, the second portion131bof the storage electrode131that is close to the shorting defect portion322and does not overlap the data line171and the pixel electrode191may be irradiated by the laser330to be disconnected.

Hereinafter, a method of repairing a short of a pixel electrode191and a storage electrode131of the liquid crystal display described with reference toFIG. 5,FIG. 6,FIG. 7, andFIG. 8will be described with reference toFIG. 14.

Referring toFIG. 14, the repair may be processed using the same method as described above with regard toFIG. 13; however, in the liquid crystal display described with reference toFIG. 5,FIG. 6,FIG. 7, andFIG. 8, the first portion131aof the storage electrode131that is positioned at the upper side relative to the disconnection portion134and the pixel electrode191that is positioned at the left side of the disconnection portion134may be shorted.

To electrically separate the second portion131bconnected to the first portion131aof the storage electrode131including the shorting defect portion322, the second portion131bof the storage electrode131that is close to the shorting defect portion322and does not overlap the data line171and the pixel electrode191may be irradiated by the laser330to be disconnected.

Like the above-described case of repairing the disconnection of the data line, when repairing the short of the pixel electrode and the storage electrode in the liquid crystal display described with reference toFIG. 13andFIG. 14, the effect on the adjacent pixel may be reduced to about ⅓ compared with the liquid crystal display without the disconnection portion.

Hereinafter, a method of repairing a short of a pixel electrode191and a storage electrode131of the liquid crystal display described with reference toFIG. 9andFIG. 12will be described with reference toFIG. 15andFIG. 16.

Referring toFIG. 15, when the shorting defect is generated between the first portion131aof the storage electrode131and the pixel electrode191, the second portion131bconnected to the first portion131aof the storage electrode131including the shorting defect portion322may be disconnected through the irradiation of a laser330. The portion of the storage electrode131that is close to the shorting defect portion322and not overlap the data line171, and the pixel electrode191may be irradiated by the laser330. The lower end of the first portion131aof the storage electrode131may be separated from the second portion131bsuch that the laser330may be irradiated to only the second portion131bthat is positioned at both sides of the upper end of the first portion131a.

Referring toFIG. 16, when the shorting defect is generated between the second portion131bof the storage electrode131and the pixel electrode191, the laser330may be irradiated to separate the portion where the shorting defect portion322is positioned from the storage electrode131to be disconnected. The laser330may be irradiated on the portion where the storage electrode131does not overlap the data line171and the pixel electrode191while being close to the shorting defect portion322. The second portion131bof the storage electrode131may be connected to the portion parallel to the gate line121and the portion parallel to the data line171such that the laser330may be irradiated on the upper and lower sides of the second portion131bof the storage electrode131with reference to the shorting defect portion322.