Liquid crystal display

A liquid crystal display including: a first substrate; a gate line and a data line formed or otherwise disposed on the first substrate; a drain electrode disposed on the first substrate; a first insulating layer disposed on the gate line and the data line; a first electrode disposed on the first insulating layer; a second insulating layer disposed on the first electrode; and a second electrode disposed on the second insulating layer. The first insulating layer and the second insulating layer have a first contact hole exposing a portion of the drain electrode. The contact portion of the second electrode is connected to the drain electrode through the first contact hole, and the contact portion overlaps the first electrode adjacent the first contact hole. The overlap increases capacitance of the display panel so as to decrease kickback voltage and reduce flicker.

CROSS-REFERENCE TO RELATED APPLICATION

This application claims priority from and the benefit of Korean Patent Application No. 10-2015-0016902, filed on Feb. 3, 2015, which is hereby incorporated by reference for all purposes as if fully set forth herein.

BACKGROUND

Field

Exemplary embodiments relate to a liquid crystal display.

Discussion of the Background

A liquid crystal display, which is one of the most common types of flat panel displays currently in use, is a display device which rearranges liquid crystal molecules of a liquid crystal layer by applying voltages to electrodes to control an amount of transmitted light.

The liquid crystal display has benefits in that it can be made lightweight and thin. However, it has a drawback in that lateral visibility is lower than front visibility. To solve these problems, liquid crystal arrangements and driving methods of various types have been developed. To realize a wide viewing angle, a liquid crystal display has been developed that forms a pixel electrode and a common electrode on one substrate.

In the liquid crystal display, at least one of two field generating electrodes of the pixel electrode and the common electrode has a plurality of cutouts, and a plurality of branch electrodes defined by the plurality of cutouts.

However, as a resolution of the liquid crystal display in which the pixel electrode and the common electrode are formed in one substrate is increased, an overlapping area of the pixel electrode and the common electrode is decreased, such that a magnitude of a kickback voltage of the liquid crystal display is increased.

As described above, when the magnitude of the kickback voltage is increased, a flicker may be generated that causes deterioration of the display quality.

SUMMARY OF THE INVENTION

An exemplary embodiment provides a liquid crystal display that prevents display quality deterioration, such as a flicker due to a kickback voltage, by reducing the magnitude of the kickback voltage even when the resolution of the liquid crystal display is increased.

An exemplary embodiment discloses a liquid crystal display that includes: a first substrate; a gate line and a data line disposed on the first substrate; a drain electrode disposed on the first substrate; a first insulating layer disposed on the gate line and the data line; a first electrode disposed on the first insulating layer; a second insulating layer disposed on the first electrode; and a second electrode disposed on the second insulating layer, wherein the first insulating layer and the second insulating layer have a first contact hole exposing a portion of the drain electrode, the contact portion of the second electrode is connected to the drain electrode through the first contact hole, and the contact portion overlaps the first electrode adjacent the first contact hole.

The first electrode may have a first opening larger than the contact hole, and the width of the drain electrode may be larger than the width of the first opening.

The first electrode may overlap the drain electrode near the first opening.

The liquid crystal display may further include a third insulating layer positioned between the first insulating layer and the first electrode, and the third insulating layer may have a second contact hole larger than the first contact hole.

The second contact hole may be larger than the first contact hole, and the contact portion may overlap the first electrode near the second contact hole.

The edge of the first opening may be positioned between the edge of the first contact hole and the edge of the second contact hole.

The liquid crystal display may further include a second substrate facing the first substrate, and a light blocking member formed on the first substrate or the second substrate, and the first contact hole may overlap the light blocking member.

The first electrode may have a plate shape, the second electrode may include a plurality of branch electrodes, and the plurality of branch electrodes of the second electrode may overlap the first electrode.

DETAILED DESCRIPTION OF THE ILLUSTRATED EMBODIMENTS

A liquid crystal display according to an exemplary embodiment will be described with reference toFIG. 1,FIG. 2,FIG. 3, andFIG. 4.FIG. 1is a layout view of a liquid crystal display according to an exemplary embodiment,FIG. 2is a cross-sectional view of the liquid crystal display ofFIG. 1taken along line II-II,FIG. 3is a view showing a portion of the liquid crystal display ofFIG. 1, andFIG. 4is a cross-sectional view ofFIG. 3.

Referring toFIG. 1andFIG. 2, a liquid crystal display according to an exemplary embodiment includes a lower panel100and an upper panel200facing each other, and a liquid crystal layer3interposed therebetween. Hereinafter, one pixel area is described as an example.

The lower panel100will be described.

A gate conductor including a gate line121is formed or otherwise disposed on a first substrate110made of transparent material such as glass, plastic, or the like.

The gate line121includes a gate electrode124, and a wide end portion (not illustrated) for connection with another layer or an external driving circuit. The gate line121may be made of an aluminum-based metal such as aluminum (Al) or an aluminum alloy, a silver-based metal such as silver (Ag) or a silver alloy, a copper-based metal such as copper (Cu) or a copper alloy, a molybdenum-based metal such as molybdenum (Mo) or a molybdenum alloy, chromium (Cr), tantalum (Ta), and titanium (Ti). However, the gate line121may have a multilayer structure including at least two conductive layers having different physical properties.

A gate insulating layer140made of a silicon nitride (SiNX), a silicon oxide (SiOX), or the like is formed on the gate line121. The gate insulating layer140may have a multilayer structure including at least two insulating layers having different physical properties.

A semiconductor layer154made of amorphous silicon or polysilicon is positioned on the gate insulating layer140. The semiconductor154may include an oxide semiconductor.

Ohmic contacts163and165are formed on the semiconductor154. The ohmic contacts163and165may be made of a material such as n+ hydrogenated amorphous silicon in which an n-type impurity such as phosphorus is doped at high concentration, or a silicide. The ohmic contacts163and165may be disposed on the semiconductor layer154to make a pair. In the case where the semiconductor layer154is an oxide semiconductor, the ohmic contacts163and165may be omitted.

A data conductor including a data line171including a source electrode173and a drain electrode175is formed on the ohmic contacts163and165and the gate insulating layer140.

The data line171includes a wide end portion (not illustrated) for connection with another layer or an external driving circuit. The data line171transfers a data signal and extends mainly in a vertical direction to cross the gate line121.

In this case, the data line171may have a first curved portion having a curved shape in order to acquire maximum transmittance of the liquid crystal display, and the curved portion meets another in a middle region of the pixel area to have a V-lettered shape. A second curved portion, which is curved to form a predetermined angle with the first curved portion, may be further included in the middle region of the pixel area.

The source electrode173is a part of a data line171, and is disposed on the same line as the data line171. The drain electrode175is formed to extend in substantially parallel with the source electrode173. Accordingly, the drain electrode175is substantially parallel with part of the data line171.

The gate electrode124, the source electrode173, and the drain electrode175form one thin film transistor (TFT) together with the semiconductor layer154, and a channel of the thin film transistor is formed in the semiconductor layer154portion between the source electrode173and the drain electrode175.

The liquid crystal display according to the exemplary embodiment of the present invention includes the source electrode173positioned on the same line with the data line171, and the drain electrode175extending in parallel with the data line171. As a result, a width of the thin film transistor may be increased while an area occupied by the data conductor is not increased, thereby increasing an aperture ratio of the liquid crystal display.

The data line171and the drain electrode175may be made of a refractory metal such as molybdenum, chromium, tantalum, and titanium, or an alloy thereof, and may have a multilayered structure including a refractory metal layer (not illustrated) and a low resistive conductive layer (not illustrated). An example of the multilayered structure may include a double layer of a chromium or molybdenum (alloy) lower layer and an aluminum (alloy) upper layer, or a triple layer of a molybdenum (alloy) lower layer, an aluminum (alloy) middle layer, and a molybdenum (alloy) upper layer. However, the data line171and the drain electrode175may be made of various metals or conductors in addition to this.

A first passivation layer180xis disposed on the data conductors171,173, and175, the gate insulating layer140, and exposed portions of the semiconductor154. The first passivation layer180xmay be made of an inorganic insulating material.

A second passivation layer180yis formed on the first passivation layer180x. The second passivation layer180yis an organic layer, and the second passivation layer180ymay be a color filter. When the second passivation layer180yis the color filter, the second passivation layer180ymay uniquely display one of various primary colors. An example of the primary colors includes three primary colors, such as red, green, and blue, or yellow, cyan, and magenta. Although not illustrated, the color filter may further include a color filter displaying a combination color of the primary colors, or white.

A common electrode270is formed on the second passivation layer180y. The common electrode270, which may cover the entire surface of the pixel area, may be formed in the shape of one plate on the front of the substrate110, and may have an opening273on a corresponding region around the drain electrode175. That is, the common electrode270may be formed on the entire surface of the pixel area and may have a flat shape, such as a plate shape.

Common electrodes270disposed in adjacent pixels may be connected to each other to receive a common voltage having a predetermined magnitude supplied from a source outside of the display region.

A third passivation layer180zis formed on the common electrode270. The third passivation layer180zmay be made of an inorganic insulating material.

A pixel electrode191is formed on the third passivation layer180z. The pixel electrode191is curved to be parallel to the curved portion of the data line171. The pixel electrode191has a plurality of first cutouts91, and includes a plurality of first branch electrodes192defined by the plurality of first cutouts91.

The second passivation layer180yhas a first contact hole185a, and the first passivation layer180xand the third passivation layer180zhave a second contact hole185b. The second contact hole185bis positioned inside the first contact hole185a.

A first contact portion195of the pixel electrode191is physically and electrically connected to the second contact portion175aof the drain electrode175exposed through the first contact hole185aand the second contact hole185b, thereby receiving a voltage from the drain electrode175.

Although not shown, a first alignment layer (not shown) may be formed on the pixel electrode191and the third passivation layer180z, and the alignment layer may be a horizontal alignment layer and may be rubbed in a predetermined direction. However, according to a liquid crystal display according to another exemplary embodiment, the alignment layer may include a light reactive material to be photo-aligned.

Next, the upper panel200will be described.

A light blocking member220is formed on a second substrate210that is made of transparent material, such as glass or plastic. The light blocking member220, also called a black matrix, prevents light leakage.

When the second passivation layer180yof the first display panel100is not the color filter, a plurality of color filters230may be formed on the second substrate210.

An overcoat250is formed on the color filter230and the light blocking member220. The overcoat250may be made of an (organic) material, and prevents exposure of the color filters230and provides a flat surface. In another exemplary embodiment, the overcoat250may be omitted.

A second alignment layer (not shown) may be formed on the overcoat250.

The liquid crystal layer3includes a liquid crystal material having positive dielectric anisotropy. Each liquid crystal molecule of the liquid crystal layer3has a direction of a major axis arranged in parallel with the display panels100and200.

The pixel electrode191and the common electrode270, which are field generating electrodes, generate an electric field. Thus the liquid crystal molecules of the liquid crystal layer3positioned on the two electrodes191and270rotate in a direction parallel to the direction of the electric field. Polarization of light passing through the liquid crystal layer varies according to the determined rotation directions of the liquid crystal molecules.

Next, the first contact hole185aand the second contact hole185b, the opening273of the common electrode270, the first contact portion195of the pixel electrode191, and a second contact portion175aof the drain electrode175will be described with reference toFIG. 3andFIG. 4.

With reference to the direction that the gate line121is extended, a first width W1of the first contact hole185aof the second passivation layer180yincluding the organic material is wider than a second width W2of the second contact hole185bof the first passivation layer180xand the third passivation layer180zincluding the inorganic material. A third width W3of the opening273of the common electrode270is less than the first width W1of the first contact hole185aand greater than the second width W2of the second contact hole185b.

The first contact portion195of the pixel electrode191is formed to cover all of the first contact hole185aand the second contact hole185b, and a fourth width W4of the first contact portion195of the pixel electrode191is greater than the third width W3of the opening273of the common electrode270. Accordingly, the first contact portion195of the pixel electrode191and the common electrode270overlap at Cst1adjacent the opening273of the common electrode270. In this way, by overlapping the first contact portion195of the pixel electrode191and the common electrode270adjacent the opening273of the common electrode270, the magnitude of the storage capacitance at Cst1of the liquid crystal display is increased.

A fifth width W5of the second contact portion175aof the drain electrode175is greater than the third width W3of the opening273of the common electrode270. Accordingly, the second contact portion175aof the drain electrode175and the common electrode270overlap at Cst2adjacent the opening273of the common electrode270. In this way, by overlapping the second contact portion175aof the drain electrode175and the common electrode270adjacent the opening273of the common electrode270, the magnitude of the storage capacitance at Cst2of the liquid crystal display is increased.

Next, a comparative liquid crystal display will be described with reference toFIG. 5.FIG. 5is a cross-sectional view of a portion of a comparative liquid crystal display.

Referring toFIG. 5, a width of the first contact portion195of the pixel electrode of the comparative liquid crystal display is less than the width of the opening273of the common electrode270, and the width of the second contact portion175aof the drain electrode175is less than the width of the common electrode270.

Accordingly, adjacent the opening273of the common electrode270, the pixel electrode191and the common electrode270do not overlap, and the drain electrode175and the common electrode270do not overlap.

However, according to the liquid crystal display according to an exemplary embodiment, by overlapping the first contact portion195of the pixel electrode191and the common electrode270adjacent the opening273of the common electrode270, the magnitude of the storage capacitance at Cst1of the liquid crystal display is increased. Also, by overlapping the second contact portion175aof the drain electrode175and the common electrode270adjacent the opening273of the common electrode270, the magnitude of the storage capacitance at Cst2of the liquid crystal display is increased.

In a case where the resolution of the liquid crystal display is increased, a number of the first branch electrodes192of the pixel electrode191is decreased, thereby an overlapping area of the common electrode270and the pixel electrode191is decreased. Accordingly, the storage capacitance of the liquid crystal display may be decreased.

On the other hand, since the kickback voltage of the liquid crystal display is inversely proportional to the storage capacitance of the storage capacitor of the liquid crystal display, if the magnitude of the storage capacitance of the liquid crystal display is increased, the magnitude of the kickback voltage of the liquid crystal display is decreased.

As described above, according to the liquid crystal display according to an exemplary embodiment, the magnitude of the storage capacitance of the liquid crystal display may be increased in the contact portion of the pixel electrode191and the drain electrode175of the liquid crystal display. Accordingly, when the resolution of the liquid crystal display is increased, the kickback voltage of the liquid crystal display is decreased, thereby preventing display quality deterioration such as the flicker due to kickback voltage.

A liquid crystal display according to another exemplary embodiment will be described with reference toFIG. 6as well asFIG. 1,FIG. 3, andFIG. 4.FIG. 6is a cross-sectional view of a liquid crystal display according to another exemplary embodiment taken along line II-II ofFIG. 1.

Referring toFIG. 6, the liquid crystal display according to the present exemplary embodiment is similar to the liquid crystal display according to the exemplary embodiment shown inFIG. 1andFIG. 2. The detailed description of the same constituent elements will therefor be omitted.

Referring toFIG. 1andFIG. 6, the liquid crystal display according to the exemplary embodiment of the present invention includes the lower panel100and the upper panel200facing each other and the liquid crystal layer3interposed therebetween.

The lower panel100will now be described.

A gate conductor including a gate line121is formed on a first substrate110made of transparent material such as glass, plastic, or the like.

The gate line121includes a gate electrode124.

A gate insulating layer140is formed on the gate conductor121.

A semiconductor154is formed on the gate insulating layer140.

Ohmic contacts163and165are formed on the semiconductor154.

A data conductor including a data line171including a source electrode173and a drain electrode175is formed on the ohmic contacts163and165and the gate insulating layer140.

A first passivation layer180xis formed on the data conductors171,173, and175, the gate insulating layer140, and the exposed portion of the semiconductor154. A second passivation layer180yis formed on the first passivation layer180x. The second passivation layer180ymay be the organic layer and the second passivation layer180ymay be the color filter.

A common electrode270is formed on the second passivation layer180y. The common electrode270, which has a surface shape, may be formed in the shape of one plate on the front of the substrate110and may have an opening273on a corresponding region around the drain electrode175.

A third passivation layer180zis formed on the common electrode270. The third passivation layer180zmay be made of the inorganic insulating material.

A pixel electrode191is formed on the third passivation layer180z. The pixel electrode191has a plurality of first cutouts91, and includes a plurality of first branch electrodes192defined by the plurality of first cutouts91.

A first contact portion195of the pixel electrode191is physically and electrically connected to the second contact portion175aof the drain electrode175exposed through the first contact hole185aand the second contact hole185b, thereby receiving a voltage from the drain electrode175.

A light blocking member220and a spacer225are formed on the first contact portion195of the pixel electrode191. The light blocking member220and the spacer225may be simultaneously formed with the same layer.

Although not shown, a first alignment layer (not shown) may be formed on the pixel electrode191, the third passivation layer180z, the light blocking member220, and the spacer225.

The upper panel200will now be described.

A second alignment layer (not shown) may be formed or otherwise disposed on a second substrate210made of transparent material, such as glass or plastic.

The liquid crystal layer3includes a liquid crystal material having positive dielectric anisotropy. Each liquid crystal molecule of the liquid crystal layer3has a direction of a major axis arranged in parallel with the display panels100and200.

The pixel electrode191and the common electrode270, which are field generating electrodes, generate an electric field, and thus, the liquid crystal molecules of the liquid crystal layer3positioned on the two electrodes191and270rotate in a direction parallel to the direction of the electric field. Polarization of light passing through the liquid crystal layer varies according to the determined rotation directions of the liquid crystal molecules.

In the liquid crystal display according to the present exemplary embodiment, as shown inFIG. 3andFIG. 4, with reference to the direction that the gate line121is extended, a first width W1of the first contact hole185aof the second passivation layer180yincluding the organic material is greater than a second width W2of the second contact hole185bof the first passivation layer180xand the third passivation layer180zincluding the inorganic material. A third width W3of the opening273of the common electrode270is less than the first width W1of the first contact hole185aand wider than the second width W2of the second contact hole185b.

Also, the first contact portion195of the pixel electrode191is formed to cover all of the first contact hole185aand the second contact hole185b, and a fourth width W4of the first contact portion195of the pixel electrode191is greater than the third width W3of the opening273of the common electrode270. Accordingly, the first contact portion195of the pixel electrode191and the common electrode270overlap at Cst1adjacent the opening273of the common electrode270. In this way, by overlapping the first contact portion195of the pixel electrode191and the common electrode270adjacent the opening273of the common electrode270, the magnitude of the storage capacitance at Cst1of the liquid crystal display is increased.

Also, a fifth width W5of the second contact portion175aof the drain electrode175is greater than the third width W3of the opening273of the common electrode270. Accordingly, the second contact portion175aof the drain electrode175and the common electrode270overlap at Cst2adjacent the opening273of the common electrode270. In this way, by overlapping the second contact portion175aof the drain electrode175and the common electrode270adjacent the opening273of the common electrode270, the magnitude of the storage capacitance at Cst2of the liquid crystal display is increased.

In the liquid crystal display according to an exemplary embodiment of the present invention, by overlapping the first contact portion195of the pixel electrode191and the common electrode270adjacent the opening273of the common electrode270, the magnitude of the storage capacitance at Cst1of the liquid crystal display is increased. Also, by overlapping the second contact portion175aof the drain electrode175and the common electrode270adjacent the opening273of the common electrode270, the magnitude of the storage capacitance at Cst2of the liquid crystal display is increased.

In a case where the resolution of the liquid crystal display is increased, a number of the first branch electrodes192of the pixel electrode191is decreased, thereby an overlapping area of the common electrode270and the pixel electrode191is decreased. Accordingly, the storage capacitance of the liquid crystal display may be decreased.

However, since the kickback voltage of the liquid crystal display is inversely proportional to the storage capacitance of the storage capacitor of the liquid crystal display, if the magnitude of the storage capacitance of the liquid crystal display is increased, the magnitude of the kickback voltage of the liquid crystal display is decreased.

As described above, according to the liquid crystal display according to an exemplary embodiment, the magnitude of the storage capacitance of the liquid crystal display may be increased in the contact portion of the pixel electrode191and the drain electrode175of the liquid crystal display. Accordingly, when the resolution of the liquid crystal display is increased, the kickback voltage of the liquid crystal display is decreased, thereby preventing deterioration in display quality, such as undesirable flicker due to the kickback voltage.

Next, a liquid crystal display according to another exemplary embodiment will be described with reference toFIG. 7,FIG. 8,FIG. 9, andFIG. 10.FIG. 7is a layout view of a liquid crystal display according to another exemplary embodiment, andFIG. 8is a cross-sectional view of the liquid crystal display ofFIG. 7taken along line VIII-VIII.FIG. 9is a view showing a portion of the liquid crystal display ofFIG. 6, andFIG. 10is a cross-sectional view ofFIG. 9.

Referring toFIG. 7andFIG. 8, the liquid crystal display according to the present exemplary embodiment is similar to the liquid crystal display according to the exemplary embodiment shown inFIG. 1andFIG. 2. The detailed description for the same constituent elements will therefor be omitted.

Referring toFIG. 7andFIG. 8, the liquid crystal display according to the exemplary embodiment includes the lower panel100and the upper panel200facing each other, and the liquid crystal layer3interposed therebetween.

The lower panel100will be described.

A gate conductor including a gate line121is formed or otherwise disposed on a first substrate110made of transparent material such as glass, plastic, or the like.

The gate line121includes a gate electrode124.

A gate insulating layer140is formed on the gate conductor121.

A semiconductor154is formed on the gate insulating layer140.

Ohmic contacts163and165are formed on the semiconductor154.

Data conductors, including a data line171, a source electrode173, and a drain electrode175, are formed on the ohmic contacts163and165and the gate insulating layer140.

A first passivation layer180xis formed on the data conductors171,173, and175, the gate insulating layer140, and the exposed portion of the semiconductor154. A common electrode270is formed on the first passivation layer180x. The common electrode270, may be formed in the shape of one plate on the front of the substrate110, and may have an opening273on a corresponding region around the drain electrode175.

A third passivation layer180zis formed on the common electrode270. The third passivation layer180zmay be made of the inorganic insulating material.

A pixel electrode191is formed on the third passivation layer180z. The pixel electrode191has a plurality of first cutouts91, and includes a plurality of first branch electrodes192defined by the plurality of first cutouts91.

The first contact portion195of the pixel electrode191is physically and electrically connected to the second contact portion175aof the drain electrode175through the contact hole185, thereby receiving a voltage from the drain electrode175.

Although not shown, a first alignment layer (not shown) may be formed on the pixel electrode191and the third passivation layer180z.

Now, the upper panel200will be described.

A light blocking member220is formed on a second substrate210made of transparent material such as glass or plastic. A second alignment layer (not shown) may be formed on the light blocking member220.

The liquid crystal layer3includes a liquid crystal material having positive dielectric anisotropy. Each liquid crystal molecule of the liquid crystal layer3has a direction of a major axis arranged in parallel with the display panels100and200.

The pixel electrode191and the common electrode270, which are field generating electrodes, generate an electric field. Thus, the liquid crystal molecules of the liquid crystal layer3positioned on the two electrodes191and270rotate in a direction parallel to the direction of the electric field. Polarization of light passing through the liquid crystal layer varies according to the determined rotation directions of the liquid crystal molecules.

Next, the contact hole185, the opening273of the common electrode270, the first contact portion195of the pixel electrode191, and the second contact portion175aof the drain electrode175will be described with reference toFIG. 9andFIG. 10.

With reference to the extending direction of the gate line121, a sixth width W6of the contact hole185of the first passivation layer180xand the third passivation layer180zincluding the inorganic material is narrower than the third width W3of the opening273of the common electrode270.

Also, the first contact portion195of the pixel electrode191is formed to cover the contact hole185, and the fourth width W4of the first contact portion195of the pixel electrode191is wider than the third width W3of the opening273of the common electrode270. Accordingly, the first contact portion195of the pixel electrode191and the common electrode270overlap at Cst1adjacent the opening273of the common electrode270. In this way, by overlapping the first contact portion195of the pixel electrode191and the common electrode270adjacent the opening273of the common electrode270, the storage capacitance at Cst1of the liquid crystal display is increased.

Also, the fifth width W5of the second contact portion175aof the drain electrode175is greater than the third width W3of the opening273of the common electrode270. Accordingly, the second contact portion175aof the drain electrode175and the common electrode270overlap at Cst2adjacent the opening273of the common electrode270. In this way, by overlapping the second contact portion175aof the drain electrode175and the common electrode270adjacent the opening273of the common electrode270, the storage capacitance at Cst2of the liquid crystal display is increased.

In a liquid crystal display according to an exemplary embodiment of the present invention, by overlapping the first contact portion195of the pixel electrode191and the common electrode270at Cst1adjacent the opening273of the common electrode270, the storage capacitance of the liquid crystal display is increased. Additionally, by overlapping the second contact portion175aof the drain electrode175and the common electrode270at Cst2adjacent the opening273of the common electrode270, the storage capacitance of the liquid crystal display is increased.

Therefore, in a liquid crystal display according to an exemplary embodiment, even though the resolution of the liquid crystal display may be increased, the magnitude of the kickback voltage of the liquid crystal display is decreased, thereby preventing the display quality deterioration such as the flicker due to the kickback voltage.