KR20200040321A - Liquid crystal display device - Google Patents

Abstract

A liquid crystal display device is provided. The liquid crystal display device comprises: a first sub-pixel electrode including a first stem electrode part extending in a first direction, a second stem electrode part extending in a second direction crossing the first direction, and a plurality of first branch electrode parts extending from the first stem electrode part or the second stem electrode part; and first and second data lines disposed to be spaced apart from each other, and having a portion extending in the second direction by respectively overlapping the first sub-pixel electrode, wherein any one of the first and second data lines overlaps the second stem electrode part.

Description

Liquid crystal display device {LIQUID CRYSTAL DISPLAY DEVICE}

The present invention relates to a liquid crystal display device.

The importance of the display device is increasing with the development of multimedia. In response to this, various types of display devices such as a liquid crystal display (LCD) and an organic light emitting display (OLED) have been used.

Among the display devices, the liquid crystal display device is one of the most widely used flat panel display devices, and is composed of two substrates having an electric field generating electrode such as a pixel electrode and a common electrode, and a liquid crystal layer interposed therebetween, and generating an electric field. By applying a voltage to the electrode, an electric field is generated in the liquid crystal layer, through which the alignment of the liquid crystal molecules of the liquid crystal layer is determined, and the polarization of the incident light is controlled to display an image.

SUMMARY OF THE INVENTION The problem to be solved by the present invention is to provide a liquid crystal display device capable of performing high-resolution driving and having low aperture ratio loss.

The problems of the present invention are not limited to the technical problems mentioned above, and other technical problems that are not mentioned will be clearly understood by those skilled in the art from the following description.

A liquid crystal display device according to an exemplary embodiment of the present invention for solving the above problems may include a first stem electrode part extending in a first direction, a second stem electrode part extending in a second direction intersecting the first direction, And a first sub-pixel electrode including a plurality of first branch electrode portions extending from the first stem electrode portion or the second stem electrode portion, and being spaced apart from each other, and overlapping the first sub-pixel electrode, respectively. A first data line and a second data line including a portion extending in a second direction are included, but one of the first data line and the second data line overlaps the second stem electrode part.

The first data line is non-overlapping with the second stem electrode portion of the first sub-pixel electrode, and the second data line overlaps the second stem electrode portion of the first sub-pixel electrode, and the first The data line may partially overlap the plurality of first branch electrode portions of the first sub-pixel electrode.

The first direction and the second direction intersect vertically, and the plurality of first branch electrode parts may extend in directions different from the first direction and the second direction.

The first sub-pixel electrode is divided into a first region located on one side and a second region located on the other side based on the second stem electrode portion, and the width and the width of the first direction of the first region The width of the two regions in the first direction may be different.

The first sub-pixel electrode is connected to one end in the first direction of the first stem electrode part, and includes a first edge stem electrode part extending in the second direction, and the first direction of the first stem electrode part. A second edge stem electrode part connected to the end and extending in the second direction may be further included.

The first sub-pixel electrode includes a first edge connecting portion connecting the first edge stem electrode portion and the first stem electrode portion, and a second edge connecting portion connecting the second edge stem electrode portion and the first stem electrode portion. It may further include.

A first gate line extending in the first direction may be included, but the first gate line may not overlap the first sub-pixel electrode.

The liquid crystal display device further includes a first switching element including a first gate electrode, a first source electrode, and a first drain electrode, wherein the first gate electrode is electrically connected to the first gate line, The first source electrode may be electrically connected to the first data line, and the first drain electrode may be electrically connected to the first sub-pixel electrode.

The liquid crystal display device may further include a data connection unit connecting the first data line and the first source electrode.

The second data line may not be connected to the first switching element.

The liquid crystal display device further includes a first storage line extending in the first direction and spaced apart from the first gate line in the second direction, wherein the first storage line is formed with the first sub-pixel electrode. It may include overlapping parts.

The liquid crystal display device may include a first gate black matrix extending in the second direction and disposed outside one side of the plurality of first branch electrode parts, and extending in the second direction, and comprising the plurality of first branch electrodes. A second gate black matrix disposed outside the other side of the negative portion may be further included.

The first gate black matrix, the second gate black matrix, and the first storage line may be disposed on the same layer, but may be spaced apart from each other.

The liquid crystal display device may include a third stem electrode part extending in the first direction, a fourth stem electrode part extending in the second direction, and the third stem electrode part or the fourth stem electrode part. A second sub-pixel electrode including a plurality of second branch electrode parts, and an electrode connection part electrically connecting the first sub-pixel electrode and the second sub-pixel electrode further include the first sub-pixel electrode and the electrode. The connection unit and the second sub-pixel electrode may be sequentially arranged along the second direction.

The first data line and the second data line include a portion overlapping the second sub-pixel electrode, and the second data line overlaps the second stem electrode portion and the fourth stem electrode portion. It can contain.

The first data line and the second data line include a portion overlapping the second sub-pixel electrode, and the first data line includes a portion overlapping the fourth stem electrode portion, and the second data The line may include a portion overlapping the second stem electrode portion.

The first data line may include a portion overlapping an end portion of the first branch electrode portion, and the second data line may include a portion overlapping the second stem electrode portion.

The plurality of first branch electrode parts may include an electrode having a first electrode width and an electrode having a second electrode width different from the first electrode width.

The plurality of first branch electrode parts may have the same pitch between the branches arranged side by side with each other.

The first electrode width may be 2.4 μm to 2.8 μm, and the second electrode width may be 3.2 μm to 3.6 μm.

The plurality of first branch electrode parts may include an electrode having an angle (acute angle) formed with the first stem electrode part having a first angle, and an electrode having a second angle different from the first angle.

The first angle may be 38 ° to 40 °.

A liquid crystal display according to another embodiment of the present invention for solving the above problems is a base substrate, a first gate line and a second gate disposed on the base substrate, extending in a first direction, and spaced apart from each other Lines, the first data line and the second data line that are insulated from the first gate line and the second gate line, extend in a second direction intersecting the first direction, and are spaced apart from each other, and the first gate A first switching element connected to the line and the first data line, a second switching element connected to the second gate line and the second data line, a first pixel electrode connected to the first switching element, and the second switching And a second pixel electrode connected to the device, wherein the first gate line and the second gate line are electrically connected, and the first data line and the second data line are the first pixel electrode and Crossing the second pixel electrode, the first pixel electrode includes a first stem electrode portion extending in the second direction, and the second pixel electrode includes a second stem electrode portion extending in the second direction. , The first data line includes a portion overlapping at least one of the first stem electrode portion and the second stem electrode portion.

The first data line may include a portion overlapping the second stem electrode portion, and the second data line may include a portion overlapping the first stem electrode portion.

The liquid crystal display device further includes a color filter overlapping the first pixel electrode and the second pixel electrode, and the color filter may be one color.

The first pixel electrode and the second pixel electrode may be arranged along the second direction.

Specific details of other embodiments are included in the detailed description and drawings.

According to embodiments of the present invention, the liquid crystal display device can perform high resolution driving while minimizing the aperture ratio reduction.

In addition, the liquid crystal display device may improve transmittance and visibility.

The effects according to the present invention are not limited by the contents exemplified above, and more various effects are included in the present specification.

1 is a block diagram schematically illustrating a liquid crystal display according to an exemplary embodiment.
2 is an equivalent circuit diagram of first to fourth pixel units illustrated in FIG. 1.
3 is a layout diagram illustrating first to fourth pixel units illustrated in FIG. 1.
FIG. 4 is a diagram illustrating the first pixel unit illustrated in FIG. 3 in more detail.
5 is a diagram illustrating a gate conductor included in the first pixel unit illustrated in FIG. 4.
FIG. 6 is a diagram illustrating a data conductor included in the first pixel unit illustrated in FIG. 4.
7 is a view illustrating a transparent conductor included in the first pixel unit illustrated in FIG. 4.
8 is a cross-sectional view taken along line I1-I1 'of FIG. 4.
9 is a cross-sectional view taken along line I2-I2 'of FIG. 4.
10 is a cross-sectional view taken along line I3-I3 'of FIG. 4.
11 is a cross-sectional view taken along line I4-I4 'of FIG. 3.
12 is a diagram illustrating a domain region of the first pixel electrode illustrated in FIG. 4.
13 is a schematic diagram illustrating an inclined direction of a plurality of liquid crystal molecules in the first pixel electrode illustrated in FIG. 4.
14 is a layout view illustrating a first pixel portion of a liquid crystal display according to another exemplary embodiment of the present invention.
15 is a layout view illustrating a first pixel portion of a liquid crystal display according to another exemplary embodiment of the present invention.
16 is a layout view illustrating a first pixel portion of a liquid crystal display according to another exemplary embodiment of the present invention.
17 is a layout view illustrating a first pixel portion of a liquid crystal display according to another exemplary embodiment of the present invention.
18 is a layout view illustrating first to fourth pixel portions of a liquid crystal display according to another exemplary embodiment of the present invention.
FIG. 19 is a view illustrating the first pixel unit illustrated in FIG. 18 in more detail.
20 is a layout view illustrating first to fourth pixel portions of a liquid crystal display according to another exemplary embodiment of the present invention.
FIG. 21 is a view illustrating the first pixel unit illustrated in FIG. 20 in more detail.
22 is a diagram illustrating a gate conductor included in the first pixel portion illustrated in FIG. 20.
23 is a diagram illustrating a data conductor included in the first pixel unit illustrated in FIG. 20.
24 is a view illustrating a transparent conductor included in the first pixel unit illustrated in FIG. 20.

Advantages and features of the present invention, and methods for achieving them will be clarified with reference to embodiments described below in detail together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in various different forms, and only the present embodiments allow the disclosure of the present invention to be complete, and the ordinary knowledge in the technical field to which the present invention pertains. It is provided to fully inform the holder of the scope of the invention, and the invention is only defined by the scope of the claims.

Elements or layers referred to as "on" or "on" of another device or layer are not only directly above the other device or layer, but also when intervening another layer or other device in the middle. All inclusive. On the other hand, when a device is referred to as “directly on” or “directly above”, it indicates that no other device or layer is interposed therebetween.

Although the first, second, etc. are used to describe various components, it goes without saying that these components are not limited by these terms. These terms are only used to distinguish one component from another component. Therefore, it goes without saying that the first component mentioned below may be the second component within the technical spirit of the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. Also, the terms “include” or “have” are intended to indicate that a feature, number, step, action, component, part, or combination thereof described in the specification exists, one or more other features or numbers, The existence or addition possibilities of steps, actions, components, parts or combinations thereof are not excluded in advance.

The same reference numerals are used for the same or similar parts throughout the specification. Hereinafter, embodiments will be described with reference to the drawings.

1 is a block diagram schematically illustrating a liquid crystal display according to an exemplary embodiment.

Referring to FIG. 1, the liquid crystal display device 1 includes a display unit 11, a gate driving unit 12, a data driving unit 13, and a timing control unit 14.

The display unit 11 is defined as an area displaying an image. The display unit 11 may include a plurality of pixel units including first to fourth pixel units PX1 to PX4. Each of the plurality of pixel units is one of the first to n-th gate lines (GL1 to GLn, n is a natural number of 2 or more), and one of the first to m-th data lines (DL1 to DLm, m is a natural number of 2 or more), respectively. It can be electrically connected.

Here, the first to n-th gate lines GL1 to GLn may extend in the first direction dr1. Also, the first to m-th data lines DL1 to DLm may extend in the second direction dr2. In the present specification, for convenience of description, a horizontal direction in the drawing is defined as a first direction dr1, and a direction intersecting the first direction dr1 is defined as a second direction dr2. That is, the second direction dr2 may indicate a vertical direction in the drawing. However, the embodiment is not limited to the aforementioned directions, and it should be understood that the first direction dr1 and the second direction dr2 refer to relative directions intersecting each other. In addition, one side of the first direction dr1 refers to a right direction in the drawing based on an imaginary point among straight lines extending in the first direction dr1, and the other side of the first direction dr1 is It can be understood to refer to the left direction in the drawing. The second direction dr2 refers to an upper direction in the drawing based on an imaginary point among straight lines extending in the second direction dr2, and the second direction dr2 refers to the other side It can be understood to refer to the downward direction.

Meanwhile, two adjacent gate lines among the first to n-th gate lines GL1 to GLn may be directly connected to each other. For example, the first gate line GL1 is directly connected to the second gate line GL2 and the third gate line and the fourth gate line are directly connected, but the second gate line GL2 and the third gate line are directly connected. It may not be connected. In one embodiment, two adjacent gate lines may be directly connected outside the display unit 11, but are not limited thereto. This will be described in more detail with reference to FIG. 2.

The gate driver 12 may generate first to nth gate signals G1 to Gn based on the first control signal CONT1 provided from the timing controller 14. The gate driver 12 may provide the generated first to nth gate signals G1 to Gn to a plurality of pixel units disposed on the display unit 11 through the first to nth gate lines GL1 to GLn. have. The gate driver 12 may be formed through a plurality of switching elements in one embodiment, or may be an integrated circuit in another embodiment.

The data driver 13 may receive the second control signal CONT2 and image data DATA from the timing controller 14. The data driver 13 may generate the first to m-th data signals D1 to Dm based on the second control signal CONT2 and the image data DATA. The data driver 13 may provide the generated first to mth data signals D1 to Dm to a plurality of pixel units disposed on the display unit 11 through the first to mth data lines DL1 to DLm. have. The data driver 13 may include, for example, a shift register, a latch, and a digital-analog converter.

The timing controller 14 may receive an image signal RGB and a control signal CS from the outside. The timing control unit 14 processes the image signal RGB and the control signal CS to be suitable for the operating conditions of the display unit 11, so that the image data DATA, the first control signal CONT1, and the second control signal ( CONT2). In one embodiment, the timing controller 14 may generate a first control signal CONT1 and a second control signal CONT2 suitable for a set frequency (eg, 30 Hz to 120 Hz) driving method.

The image signal RGB may include a plurality of gradation data to be provided to the display unit 11. Also, the control signal CS may include a horizontal synchronization signal, a vertical synchronization signal, and a main clock signal, in one embodiment. The horizontal synchronization signal indicates the time taken to display one line of the display unit 11. The vertical synchronization signal represents a time taken to display an image of one frame. The main clock signal is a signal that the timing control unit 14 is synchronized with each of the gate driver 12 and the data driver 13 and serves as a reference for generating various signals.

Hereinafter, a plurality of pixel units arranged on the display unit 11 will be described in more detail with reference to the first to fourth pixel units PX1 to PX4.

2 is an equivalent circuit diagram of first to fourth pixel units illustrated in FIG. 1. 3 is a layout diagram illustrating first to fourth pixel units illustrated in FIG. 1. FIG. 4 is a diagram illustrating the first pixel unit illustrated in FIG. 3 in more detail.

2 to 4, the first pixel part PX1 and the second pixel part PX2 may be disposed adjacently along the second direction dr2. In addition, the third pixel part PX3 and the fourth pixel part PX4 may also be disposed adjacently along the second direction dr2. The first pixel part PX1 and the third pixel part PX3 may be disposed adjacently along the first direction dr1. In addition, the second pixel portion PX2 and the fourth pixel portion PX4 may also be disposed adjacently along the first direction dr2.

The first to fourth pixel units PX1 to PX4 may receive different data signals D1 to D4 from different data lines, that is, each of the first to fourth data lines DL1 to DL4.

The liquid crystal display device 1 includes a first pixel portion PX1 and a third pixel portion PX3, the first pixel row extending in the first direction dr1, and the first pixel row and the second direction ( dr2), the second pixel portion PX2 and the fourth pixel portion PX4, and a second pixel row extending in the first direction dr1. On the other hand, gate signals may be provided from the same gate line to each other between the pixel units disposed in the same row. For example, the first pixel row may receive the first gate signal G1 from the first gate line GL1, and the second pixel row may receive the second gate signal G2 from the second gate line GL2. Can be provided.

Here, the first gate line GL1 and the second gate line GL2 are directly and / or electrically connected to each other through the first node N1. That is, the first gate signal G1 provided from the first gate line GL1 and the second gate signal G2 provided from the second gate line GL2 may be the same signal. The position of the first node N1 is not particularly limited, and may be arranged outside the display unit 11 (that is, a non-display area in which an image is not displayed) in one embodiment. Meanwhile, the first gate line GL1 and the second gate line GL2 are not connected only to the first node N1. That is, the number of nodes to which the first gate line GL1 and the second gate line GL2 are connected to each other may be plural.

The first to fourth pixel units PX1 to PX4 may include switching elements TR1 to TR4, pixel electrodes PE1 to PE4, liquid crystal capacitors Clc1 to Clc4, and storage capacitors Cst1 to Cst4, respectively. . This will be described in more detail with reference to the first pixel portion PX1.

The first pixel unit PX1 may include a first switching element TR1, a first pixel electrode PE1, a first liquid crystal capacitor Clc1, and a first storage capacitor Cst1.

The first switching element TR1 may be a thin film transistor having an input electrode, an output electrode, and a control electrode in one embodiment. Hereinafter, the input electrode will be expressed as a source electrode, an output electrode as a drain electrode, and a control electrode as a gate electrode.

The first switching element TR1 includes a first gate electrode GE1 electrically connected to the first gate line GL1, a first source electrode SE1 electrically connected to the first data line DL1, and the first switching element TR1. A first drain electrode DE1 electrically connected to the pixel electrode PE1 may be included. Here, the first drain electrode DE1 of the first switching element TR1 may be electrically connected to the first pixel electrode PE1 through the first contact hole CNT1. The first contact hole CNT may be located at an equidistant distance from the first data line DL1 and the second data line DL2 in one embodiment. The first switching element TR1 performs a switching operation based on the first gate signal G1 received from the first gate line GL1, and thus the first data signal D1 received from the first data line DL1. ) May be provided to the first pixel electrode PE1.

The first liquid crystal capacitor Clc1 is formed between the first pixel electrode PE1 and the common electrode (refer to 'CE' in FIG. 8) provided with the common voltage Vcom. The first storage capacitor Cst1 may be formed between the first pixel electrode PE1 and the first storage line SL1 to which the storage voltage Vcst is provided, and also, the first pixel electrode PE1 and the second. It is formed between the storage patterns RL2. The shape of the first pixel electrode PE1 and the relationship with other configurations will be described later.

Hereinafter, driving of the liquid crystal display 1 according to an exemplary embodiment of the present invention will be described with reference to the first pixel portion PX1 and the second pixel portion PX2.

The first switching element TR1 performs a switching operation based on the first gate signal G1. Also, the second switching element TR2 performs a switching operation based on the second gate signal G2. However, as described above, the first gate line GL1 and the second gate line GL2 are connected to each other. That is, the first gate signal G1 and the second gate signal G2 are substantially the same signal.

Accordingly, the first switching element TR1 and the second switching element TR2 perform the same switching operation. However, the first switching element TR1 is electrically connected to the first data line DL1, while the second switching element TR2 is electrically connected to the second data line DL2, so that the first pixel electrode ( Different data signals may be provided to each of the PE1) and the second pixel electrode PE2. That is, the first pixel electrode PE1 and the second pixel electrode PE2 may be provided with different data signals at the same time. Through this, the liquid crystal display device 1 according to an embodiment of the present invention can be applied to a high-resolution product that requires high-frequency driving.

Next, with reference to FIGS. 3 to 11, the arrangement relationship between the components of the liquid crystal display device 1 according to an exemplary embodiment will be described. For convenience of description, description will be made based on the first pixel portion PX1. It is obvious that the description of the first pixel portion PX1 can be applied to the second to fourth pixel portions PX2 to PX4.

5 is a diagram illustrating a gate conductor included in the first pixel unit illustrated in FIG. 4. FIG. 6 is a diagram illustrating a data conductor included in the first pixel unit illustrated in FIG. 4. 7 is a view illustrating a transparent conductor included in the first pixel unit illustrated in FIG. 4. 8 is a cross-sectional view taken along line I1-I1 'of FIG. 4. 9 is a cross-sectional view taken along line I2-I2 'of FIG. 4. 10 is a cross-sectional view taken along line I3-I3 'of FIG. 4. 11 is a cross-sectional view taken along line I4-I4 'of FIG. 3.

The first display panel 200 is disposed to face the second display panel 300. The liquid crystal layer 400 is interposed between the first display panel 200 and the second display panel 300. The liquid crystal layer 400 may include a plurality of liquid crystal molecules 411a to 411h. The first display panel 200 may be bonded to the second display panel 300 through sealing in one embodiment.

The first display panel 200 will be described.

The base substrate 210 may be a transparent insulating substrate in one embodiment. Here, the transparent insulating substrate may include a glass material, a quartz material, or a translucent plastic material. In another embodiment, the base substrate 210 may be a flexible substrate, or may have a shape in which a plurality of films or the like are stacked.

The gate conductor GW may be disposed on the base substrate 210. The gate conductor GW includes a plurality of gate lines including the first gate line GL1, a plurality of gate electrodes including the first gate electrode GE1, and a plurality of storage lines including the first storage line. It can contain. In addition, the gate conductor GW includes, in one embodiment, a plurality of repair lines including the first repair line RLP1 and a plurality of first to fourth gate black matrices GB11, GB12, GB21, and GB22. The gate may further include a black matrix, but is not limited thereto.

The first gate line GL1 extends along the first direction dr1 and is directly connected to the gate electrode GE1. The first repair line RPL1 may extend along the first direction dr1 and be spaced apart from the first gate line GL1. The first repair line RLP1 may be electrically connected to the first gate line GL1. In one embodiment, the first repair line RLP1 is directly connected to the first gate electrode GE1 and the gate electrode disposed in the same row as the first gate electrode GE1, thereby forming the first repair line GL1. It can be electrically connected. The first repair line RLP1 may also be provided with the same gate signal as the first gate line GL1. Accordingly, even when the first gate line GL1 is disconnected, the first switching element TR1 may perform the switching operation normally. Meanwhile, in another embodiment, the first repair line RLP1 may be omitted. Also, positions of the first repair line RPL1 and the first gate line GL1 may be changed.

The first pixel unit PX1 may include a first storage line SL1. The first storage line SL1 may be disposed on the same layer as a plurality of gate lines including the first gate line GL1. The first storage line SL1 is, in one embodiment, generally extended in the first direction dr1 and spaced apart from the first gate line GL1 and the first repair line RLP1. A portion of the first pixel electrode PE1 may be disposed to overlap the first storage line SL1. In this specification, the expression “overlapping” means that the two configurations overlap in the thickness direction (direction perpendicular to the surface of the base substrate in FIG. 8) of the liquid crystal display device 1 unless otherwise defined. .

The first storage line SL1 may include a first storage electrode RLE1 protruding in the second direction dr2 in one embodiment. The first storage electrode RLE1 may be disposed to overlap the first contact hole CNT1, which will be described later. That is, the first storage electrode RLE1 may overlap the first drain electrode extension part DEP1 and a portion of the first pixel electrode PE1.

As the first storage line SL1 including the first pixel electrode PE1 and the first storage electrode RLE1 overlaps, the first storage capacitor Cst1 described above may be formed.

The first pixel portion PX1 may include a plurality of gate black matrices GB11, GB12, GB21, and GB22 in one embodiment. The plurality of gate black matrices GB11, GB12, GB21, and GB22 may be disposed on the same layer as the plurality of gate lines including the first gate line GL1. The plurality of gate black matrices GB11, GB12, GB21, and GB22 may be disposed outside one side edge and / or outside the other side edge of the first pixel electrode PE1. Each of the gate black matrices GB11, GB12, GB21, and GB22 is not only a part outside the border of the first pixel portion, but also extends in the second direction dr2 and adjoins in the second direction dr2. It may also be arranged on a part of the outer part of the rim. The arrangement relationship of each gate black matrix (GB11, GB12, GB21, GB22) will be described later.

The plurality of gate black matrices GB11, GB12, GB21, and GB22 may include a positive type photosensitive material. The plurality of gate black matrices GB11, GB12, GB21, and GB22 may block light generated from a lower portion of the base substrate (eg, a backlight unit). In some embodiments, the gate black matrix (GB11, GB12, GB21, GB22) may be omitted.

The gate conductor (GW) is made of aluminum (Al), copper (Cu), molybdenum (Mo), chromium (Cr), titanium (Ti), tungsten (W), molybdenum tungsten (MoW), or molitanium (MoTi), It may be formed of a single film selected from conductive metals containing copper / molitanium (Cu / MoTi), a double film composed of at least two, or a triple film composed of three. A plurality of gate lines including the first gate line GL1 included in the gate conductor GW, a plurality of gate electrodes including the first gate electrode GE1, a storage pattern RL, and a first repair line ( The plurality of repair lines including RPL1) and the plurality of gate black matrices may be simultaneously formed through the same mask process.

The gate insulating layer 221 may be disposed on the gate conductor GW. The gate insulating layer 221 may be formed of silicon nitride or silicon oxide, for example. The gate insulating layer 221 may have a multi-film structure including at least two insulating layers having different physical properties.

The data conductor DW may be disposed on the gate insulating layer 221. The data conductor DW includes a plurality of data lines including the first data line DL1, a plurality of source electrodes including the first source electrode SE1, and a plurality of drains including the first drain electrode DE1. A semiconductor layer having an electrode and a first semiconductor pattern SM1 may be included.

The semiconductor layer may be disposed on the gate insulating layer 221. The semiconductor layer may be formed of amorphous silicon, polycrystalline silicon, or the like in one embodiment. In another embodiment, the semiconductor layer may include an oxide semiconductor. When the semiconductor layer includes an oxide semiconductor, the semiconductor layer is IGZO (In-Ga-Zinc-Oxide), ZnO, ZnO2, CdO, SrO, SrO2, CaO, CaO2, MgO, MgO2, InO, In2O2, GaO, Ga2O, It may be formed of one selected from oxide semiconductors including Ga2O3, SnO, SnO2, GeO, GeO2, PbO, Pb2O3, Pb3O4, TiO, TiO2, Ti2O3, and Ti3O5.

The first semiconductor pattern SM1 among the semiconductor layers may form a channel region of the first switching element TR1.

Although not shown, the data conductor DW may further include a resistive contact layer. The resistive contact layer may be disposed on the semiconductor layer. The resistive contact layer may be made of a material such as n + hydrogenated amorphous silicon in which n-type impurities such as phosphorus are doped at a high concentration, or may be made of silicide. However, the resistive contact layer may be omitted if the semiconductor layer is made of an oxide semiconductor.

The first data line DL1, the first source electrode SE1, and the first drain electrode DE1 may be disposed on the gate insulating layer 221 and the above-described resistive contact layer. The first source electrode SE1 is branched from the first data line DL1, and at least a portion of the first source electrode SE1 may overlap the first gate electrode GE1. The first source electrode SE1 may be connected to the first data line DL1 through the first data connection part DP1. The first drain electrode DE1 is overlapped with the first gate electrode GE1, and may be disposed at a predetermined distance from the first source electrode SE1. Meanwhile, the first drain electrode DE1 may further include a first drain electrode extension DEP1. The first drain electrode extension part DEP1 may overlap the first storage electrode RLE1 and the first contact hole CNT1.

Although the shape of the first source electrode SE1 is' U'-shaped in the drawing, the first drain electrode DE1 is illustrated as being surrounded by the first source electrode SE1, but is not limited thereto. The first source electrode SE1, the first drain electrode DE1, the first semiconductor pattern SM1 and the first gate electrode GE1 form the first switching element TR1 described above.

The first data line DL1 may include a first bent region BP1 and a second bent region BP2 to prevent a short with the first drain electrode extension DEP1. Also, the second data line DL2 may include a third bent region BP3 and a fourth bent region BP4 in order to prevent shorting with the first drain electrode extension DEP1. The first data line DL1 and the second data line DL2 extend in a second direction dr2 in a region overlapping with the first pixel electrode PE1, and do not overlap the first pixel electrode PE1. The region may include curved regions BP1 to BP4 extending in a second direction dr2 and extending between the two regions in a second direction dr2 and a substantially different direction. For example, the first data line DL1 may extend in the second direction dr2 between the first bent area BP1 and the second bent area BP2, and the second data line DL2 may be 3 may extend in the second direction dr2 between the bent region BP1 and the fourth bent region BP2.

The first to fourth curved regions BP1 to BP4 may be disposed at positions overlapping the first pixel electrode PE1 in one embodiment. For example, the first curved area BP1 of the first data line DL1 and the third curved area BP3 of the second data line DL2 are the first area PER1 of the first pixel electrode PE1. The second curved region BP2 of the first data line DL1 and the fourth curved region BP4 of the second data line DL2 may be disposed at positions overlapping with the first pixel electrode PE1. It may be disposed at a position overlapping the second region PER2. However, the present invention is not limited thereto, and the curved regions BP1 to BP4 may be omitted or disposed so as not to overlap the first pixel electrode PE1 in regions other than the first region PER1 and the second region PER2. have. The distance between the first data line DL1 and the second data line DL2 may be wider in an area not overlapping the first pixel electrode PE1 than in an area overlapping the first pixel electrode PE1. The interval from the first drain electrode extension DEP1 to the first data line DL1 and the interval from the first drain electrode extension DEP1 to the second data line DL2 may be the same.

The data conductors (DW) are aluminum (Al), copper (Cu), molybdenum (Mo), chromium (Cr), titanium (Ti), tungsten (W), molybdenum tungsten (MoW), and molitanium (MoTi), It may be formed of a single film selected from conductive metals containing copper / molitanium (Cu / MoTi), a double film composed of at least two, or a triple film composed of three. However, it is not limited thereto, and may be made of various metals or conductors. In one embodiment, the data conductor DW may be simultaneously formed through the same mask process.

The first passivation layer 223 may be disposed on the data conductor DW. The first passivation layer 223 includes an opening exposing at least a portion of the first drain electrode extension portion DEP1. The first passivation film 223 may be formed of an inorganic insulating material such as silicon nitride and silicon oxide in one embodiment. The first passivation layer 223 may prevent the pigment of the organic insulating layer 260 to be described later from flowing into the first semiconductor pattern SM1.

The color filters 230a, 230b, and 230c may be disposed on the first passivation film 223. The color filters 230a, 230b, and 230c overlap with an opening of the first passivation layer 223 and include an opening exposing at least a portion of the first drain electrode extension DEP1.

Light passing through the color filters 230a, 230b, and 230c may display one of primary colors such as three primary colors of red, green, and blue. However, the display color of the light passing through the color filters 230a, 230b, and 230c is not limited to the basic color, and among the colors of cyan, magenta, yellow, and white series Either one can be displayed. In one embodiment, the color filters 230a, 230b, and 230c may be formed of a material that displays different colors for each pixel portion adjacent in the first direction dr1, and pixels adjacent in the second direction dr2. The part may be formed of a material displaying the same color. For example, one color filter of red, green, and blue may be formed in the first pixel portion PX1 and the second pixel portion PX2 adjacent in the second direction dr2. In addition, the third pixel part PX3 and the fourth pixel part PX4 adjacent to the first pixel part PX1 and the second pixel part PX2 in the first direction dr1 are the first pixel part PX1. A color filter of one of colors other than the color selected by the second pixel unit PX2 may be formed. However, the present invention is not limited thereto, and may be formed of a material that displays different colors for each adjacent pixel part regardless of the direction in another embodiment. In FIGS. 8 to 11, color filters 230a, 230b, and 230c are illustrated as being disposed on the first display panel 200. Alternatively, the color filters may be disposed on the second display panel 300.

The second passivation layer 250 may be disposed on the color filters 230a, 230b, and 230c. The second passivation film 250 may be formed of an inorganic insulating material such as silicon nitride and silicon oxide in one embodiment. The second passivation layer 250 may be omitted.

Although not shown, an organic insulating layer may be disposed between the color filters 230a, 230b, and 230c and the second passivation layer 250. In this case, the organic insulating layer overlaps the opening of the first passivation layer 223 and may include an opening exposing at least a portion of the first drain electrode extension DEP1. The organic insulating film has excellent planarization characteristics and may include an organic material having photosensitivity. The organic insulating film may be omitted.

The opening of the first passivation film 223, the opening of the color filters 230a, 230b, and 230c, the opening of the above-described organic insulating film and the opening of the second passivation film 250 may form the first contact hole CNT1. have.

The transparent conductor TE may be disposed on the second passivation film 250. The transparent conductor (TE) may include a transparent conductive material. Here, the transparent conductive material may include polycrystalline, single crystal, or amorphous Indium Tin Oxide (ITO). The transparent conductor TE may include a plurality of pixel electrodes including the first pixel electrode PE1.

The first pixel electrode PE1 may directly contact the first drain electrode extension DEP1 exposed through the first contact hole CNT1. Also, the first pixel electrode PE1 overlaps the common electrode CE. Accordingly, the first liquid crystal capacitor Clc1 (see FIG. 2) may be formed between the first pixel electrode PE1 and the common electrode CE overlapping each other.

Hereinafter, the shape of the first pixel electrode PE1 will be described in more detail.

The first pixel electrode PE1 includes a first sub-pixel electrode PE11, a second sub-pixel electrode PE12, and an electrode connection portion PE13 connecting each sub-pixel electrode PE11, PE12. The first sub-pixel electrode PE11 is a part of the first pixel electrode PE1 disposed on one side of the second direction dr2 based on the electrode connection part PE13, and the second sub-pixel electrode PE12 is an electrode connection part It may be a part of the first pixel electrode PE1 disposed on the other side of the second direction dr2 based on the PE13. The region in which the first sub-pixel electrode PE11 is disposed is defined as a first region PER1, the region in which the second sub-pixel electrode PE12 is disposed is defined as a second region PER2, and the electrode connection portion PE13 is disposed. If the area in which is disposed is defined as the third area PER3, the first area PER1, the third area PER3, and the second area PER2 may be sequentially arranged along the second direction dr2. The first sub-pixel electrode PE11 and the second sub-pixel electrode PE12 may be electrically connected through the electrode connection part PE13.

Each sub-pixel electrode PE11, PE12 includes a plurality of stem electrode parts PE11a, PE11b, PE12a, PE12b, and branch electrode parts PE11c, PE12c extending from the stem electrode parts PE11a, PE11b, PE12a, PE12b. do. The stem electrode parts PE11a, PE11b, PE12a, and PE12b may include vertical stem electrode parts PE11b and PE12b and horizontal stem electrode parts PE11a and PE12a. For convenience of description, the stem electrode part extending in the first direction (dr1) in the drawing is the horizontal stem electrode part (PE11a, PE12a), the stem electrode part extending in the second direction (dr2) in the drawing is the vertical stem electrode part (PE11b) , PE12b), and it will be apparent that the horizontal stem electrode parts PE11a and PE12a and the vertical stem electrode parts PE11b and PE12b refer to stem electrode parts extending in a relative direction crossing each other. Each of the sub-pixel electrodes PE11 and PE12 is an edge stem electrode part EB11, EB12, EB13, EB14 connected through the horizontal stem electrode parts PE11a, PE12a and the edge connecting parts C11, C12, C13, C14 in one embodiment. ) May be further included, and a description thereof will be described later.

The first sub-pixel electrode PE11 may include a first horizontal stem electrode portion PE11a, a first vertical stem electrode portion PE11b, and a first branch electrode portion PE11c. The first horizontal stem electrode part PE11a may extend in the first direction dr1. The first vertical stem electrode portion PE11b extends in the second direction dr2 and may contact the first horizontal stem electrode portion PE11a. The first branch electrode part PE11c extends from the first horizontal stem electrode part PE11a and / or the first vertical stem electrode part PE11b in a direction different from the first direction dr1 and the second direction dr2. It may include a plurality of branch electrodes.

In one embodiment, the first horizontal stem electrode portion PE11a may be in contact with the first vertical stem electrode portion PE11b so as to divide and cross the first vertical stem electrode portion PE11b. Meanwhile, the first vertical stem electrode portion PE11b may not equally divide the first horizontal stem electrode portion PE11a. For example, the first transverse stem electrode portion PE11a has a length that extends to the other side of the first direction dr1 from a length that extends to one side of the first direction dr1 based on the first vertical stem electrode portion PE11b. Can be long

The first sub-pixel electrode PE11 extends in the second direction dr2, and at least one edge stem electrode part EB11 is disposed spaced apart from the first vertical stem electrode part PE11b and the first direction dr1. EB12). In one embodiment, the first sub-pixel electrode PE11 has a first edge stem electrode part EB11 and a first horizontal stem electrode part EB11 connected to one end of the first horizontal stem electrode part PE11a through a first edge connection part C11. A second edge stem electrode portion EB12 connected to the other end of the stem electrode portion PE11a through the second edge connection portion C12 may be included.

The second sub-pixel electrode PE12 may include a second horizontal stem electrode portion PE12a, a second vertical stem electrode portion PE12b, and a second branch electrode portion PE12c. The second horizontal stem electrode part PE12a may extend in the first direction dr1. The second vertical stem electrode part PE12b extends in the second direction dr2 and may contact the second horizontal stem electrode part PE12a. The second branch electrode part PE12c may include a plurality of branch electrodes extending from the second horizontal stem electrode part PE12a and / or the second vertical stem electrode part PE12b.

In one embodiment, the second horizontal stem electrode portion PE12a may be in contact with the second vertical stem electrode portion PE12b so as to divide and cross the second vertical stem electrode portion PE12b. Meanwhile, the second vertical stem electrode part PE12b may not equally divide the second horizontal stem electrode part PE12a. For example, unlike in the first sub-pixel electrode PE11, the second horizontal stem electrode portion PE12a is longer than the length extending in the other direction of the first direction dr1 based on the second vertical stem electrode portion PE12b. The length extended in one side of the first direction dr1 may be long.

The second sub-pixel electrode PE11 extends in the second direction dr2, and at least one edge stem electrode part EB13 is spaced apart from the second vertical stem electrode part PE11b and the first direction dr1. EB14). In one embodiment, the second sub-pixel electrode PE11 is connected to one end of the second horizontal stem electrode part PE11a through a third edge connecting part C21, and a third edge stem electrode part EB13 and a second horizontal A fourth edge stem electrode portion EB14 connected to the other end of the stem electrode portion PE11a through the fourth edge connection portion C22 may be included.

Each of the above-described edge stem electrode parts EB11, EB12, EB13, and EB14 may not be directly connected to each other, but is not limited thereto. Each of the edge stem electrode portions EB11 and EB12 may be omitted in other embodiments. The first edge stem electrode part EB11 and the third edge stem electrode part EB13, the second edge stem electrode part EB12 and the fourth edge stem electrode part EB14 may be connected.

Each of the edge stem electrode portions EB11, EB12, EB13, and EB14 may reduce liquid crystal alignment interference that may occur at the boundary between adjacent pixel electrodes in the first direction dr1.

The thickness of each of the horizontal stem electrode parts PE11a and PE12a and each of the vertical stem electrode parts PE11b and PE12b may be different. The thickness of each of the horizontal stem electrode parts PE11a and PE12a may be 5 μm to 7 μm in one embodiment, and the thickness of each of the vertical stem electrode parts PE11b and PE12b may be 3 μm to 5 μm in one embodiment. At this time, the thickness of each edge stem electrode portion (EB11, EB12, EB13, EB14) may be 2 μm to 3 μm in one embodiment. However, the present invention is not limited thereto, and the thickness of each of the horizontal stem electrode parts PE11a and PE12a and each of the vertical stem electrode parts PE11b and PE12b may have a different range of thickness, or may be formed to have the same thickness.

Some electrodes of the first sub-pixel electrode PE11 may be extended to be connected to the first sub-connection electrode PE13. For example, some electrodes of the first branch electrode part PE11c may extend to the other side of the second direction dr2 and be connected to the first sub connection electrode PE13.

Some electrodes of the second sub pixel electrode PE12 may be extended to be connected to the first sub connection electrode PE13. For example, some of the electrodes of the second branch electrode part PE12c may extend to one side of the second direction dr2 to be connected to the first sub connection electrode PE13.

The first sub connection electrode PE13 may include a first electrode connection portion, and the first electrode connection portion may contact the first drain electrode extension portion through a first contact hole, which will be described later.

The shape of the first pixel electrode PE1 in the first to third regions PER1 to PER3 will be described in detail.

The first area PER1 may be an area defined by the first horizontal stem electrode part PE11a, the first vertical stem electrode part PE11b, and the first branch electrode part PE11c of the first pixel electrode PE1. In one embodiment, the region may further include a first edge stem electrode portion EB11 and a second edge stem electrode portion EB12. That is, the first region PER1 may be defined as a region in which the first sub-pixel electrode PE11 is disposed.

The second area PER1 may be an area defined by the second horizontal stem electrode part PE11a, the second vertical stem electrode part PE11b, and the second branch electrode part PE11c of the first pixel electrode PE1. In one embodiment, it may be a region further including a third edge stem electrode portion EB13 and a fourth edge stem electrode portion EB14. That is, the first region PER1 may be defined as a region in which the first sub-pixel electrode PE11 is disposed. The second area PER2 may be an area slightly closer to the second pixel part PX2 than the first area PER1.

The first region PER1 and the second region PER2 may overlap almost exactly in the second direction dr2. However, the first vertical stem electrode part PE11b and the second vertical stem electrode part PE12b may not overlap in the second direction dr2. That is, the second vertical stem electrode portion PE12b may not be included on the virtual straight line that includes the first vertical stem electrode portion PE11b and extends in the second direction dr2. As described above, the first vertical stem electrode part PE11b may be disposed to be biased toward one side of the first direction dr1 from an imaginary center line extending in the second direction dr2 of the first area PER1. The vertical stem electrode part PE12b may be disposed to be biased toward the other side of the first direction dr1 from an imaginary center line extending in the second direction dr2 of the second area PER2.

Hereinafter, the plurality of branch electrode portions PE11c and PE12c of the first pixel electrode PE1 will be described.

The first sub-pixel electrode PE11 may include a plurality of first branch electrode portions PE11c extending from the first vertical stem electrode portion PE11b or extending from the first horizontal stem electrode portion PE11a.

The plurality of first branch electrode parts PE11c may extend in a direction inclined with respect to the first direction dr1 and the second direction dr2. The plurality of first branch electrode portions PE11c include at least one branch electrode and a first horizontal stem extending inclined along a first direction dr1 from one side and the other side of the first vertical stem electrode portion PE11b. It may include at least one branch electrode extending from one side and the other side of the electrode portion PE11a inclined along the second direction dr2.

In detail, the plurality of first branch electrode parts PE11c may have a shape extending in a direction away from a point at which the first vertical stem electrode part PE11b and the first horizontal stem electrode part PE11a intersect. Of the first branch electrode part PE11c, branch electrodes extending in one direction in the second direction dr2 based on the first horizontal stem electrode part PE11a and the second direction based on the first horizontal stem electrode part PE11a (dr2) Branches extending to the other side may have a symmetrical shape based on the first horizontal stem electrode portion PE11a. That is, the lengths of the two electrodes corresponding to the first horizontal stem electrode part PE11a may be substantially the same. Meanwhile, the lengths of the plurality of branch electrodes arranged on one side of the first direction dr1 and the plurality of branch electrodes arranged on the other side of the first direction dr1 are different based on the first vertical stem electrode part PE11b. You can. In one embodiment, the average length of the plurality of branch electrodes disposed on one side of the first direction dr1 based on the first vertical stem electrode portion PE11b is the plurality of electrodes disposed on the other side of the first direction dr1. It may be shorter than the average length of the branch electrode. However, the first branch electrode part PE11c is not limited to the above-described shape. For example, in another embodiment, the lengths of the plurality of electrodes on both sides corresponding to the first direction dr1 based on the first vertical stem electrode part PE11b are formed to be the same, and the first horizontal stem electrode part The lengths of the plurality of electrodes on both sides corresponding to the second direction dr2 based on the PE11a may be formed to be different.

Similarly, the second sub-pixel electrode PE12 may include a plurality of second branch electrode portions PE12c extending from the second vertical stem electrode portion PE12b or extending from the second horizontal stem electrode portion PE12a. .

The plurality of second branch electrode portions PE12c may include at least one branch electrode and a second horizontal stem electrode portion extending substantially in a first direction dr1 from one side and the other side of the second vertical stem electrode portion PE12b. At least one branch electrode extending from one side and the other side of the PE12a generally along the second direction dr2 may be included.

The plurality of second branch electrode parts PE12c may have a shape extending in a direction away from a point at which the second vertical stem electrode part PE12b and the second horizontal stem electrode part PE12a intersect. Of the second branch electrode part PE12c, branch electrodes extending in one direction in the second direction dr2 based on the second horizontal stem electrode part PE12a and the second direction based on the second horizontal stem electrode part PE12a (dr2) Branches extending to the other side may have a symmetrical shape based on the second horizontal stem electrode portion PE12a. That is, the lengths of the two electrodes corresponding to the second horizontal stem electrode part PE12a may be substantially the same. Meanwhile, the lengths of the plurality of branch electrodes arranged on one side of the first direction dr1 and the plurality of branch electrodes arranged on the other side of the first direction dr1 are different based on the second vertical stem electrode part PE12b. You can. In one embodiment, the average length of the plurality of branch electrodes disposed on one side of the first direction dr1 based on the second vertical stem electrode portion PE12b is the plurality of electrodes disposed on the other side of the first direction dr1. It may be longer than the average length of the branch electrode. However, the second branch electrode part PE12c is not limited to the above-described shape. For example, in another embodiment, the lengths of the plurality of electrodes on both sides corresponding to the first direction dr1 based on the second vertical stem electrode part PE12b are formed to be the same, and the second horizontal stem electrode part The lengths of the plurality of electrodes on both sides corresponding to the second direction dr2 based on the PE12a may be formed to be different.

The third area PER3 is an area between the first area PER1 and the second area PER2, and the first sub connection electrode connecting the first sub pixel electrode PE11 and the second sub pixel electrode PE12. It may be defined as an area where PE13 is disposed. The first sub-connection electrode PE13 connects the first sub-pixel electrode PE11 and the second sub-pixel electrode PE12.

The first sub connection electrode PE13 is an embodiment, and the second direction dr2 from a part of the first branch electrode part PE11c on the other side of the first direction dr1 based on the first vertical stem electrode part PE11b. The first electrode connecting portion (PE13a), the first vertical stem electrode extending in the second vertical stem electrode portion (PE12b) is connected to a portion of the second branch electrode portion (PE12c) of the other side in the first direction (dr1) based on A first direction based on the second vertical stem electrode part PE12b extending from a part of the first branch electrode part PE11c on one side of the first direction dr1 based on the part PE11b to the second direction dr2 (dr1) may include a second electrode connection portion PE13b connected to a portion of the second branch electrode portion PE12c on one side, and a third electrode connection portion PE13c connected to the first drain electrode extension portion DEP1. have. The third electrode connection portion PE13c may connect the first electrode connection portion PE13a and the second electrode connection portion PE13b.

Next, the arrangement relationship of the transparent conductor PE, the gate conductor GW, and the data conductor DW will be described.

On a plane, the first storage line SL1 extends in the first direction dr1 and may be arranged to be spaced apart from the first gate line GL1 and the first repair line RLP1. Also, in one embodiment, the first storage line SL1 may be disposed to cross the first pixel electrode PE1. In this case, the first storage line SL1 may extend along the border of the first branch electrode part PE11c, which may extend along the boundary between the first area PER1 and the third area PER3. have. That is, the first storage line SL1 may overlap the first vertical stem electrode part PE11b and the first branch electrode part PE11c.

The first gate black matrix GB11 may overlap the first edge stem electrode portion EB11. The second gate black matrix GB12 may overlap the second edge stem electrode portion EB12. The third gate black matrix GB21 may overlap the third edge stem electrode portion EB13. The fourth gate black matrix GB22 may overlap the fourth edge stem electrode portion EB14.

The first gate line GL1 extends in the first direction dr1 and may cross the third area PER3. That is, the first gate line GL1 may not overlap with the first sub-pixel electrode PE11, but may include a portion crossing the first sub-connection electrode PE13.

The first data line DL1 and the second data line DL2 extend in a second direction (dr2), and include a first gate line GL1, a first repair line RLP1, and a first storage line SL1. And crossing the first pixel electrode PE1.

The first data line DL1 extends in the second direction dr2 in the first area PER1, and in one embodiment, does not overlap the first vertical stem electrode part PE11b, and the first vertical stem electrode part The first direction dr1 of the PE11b may be spaced apart from the other side. The first data line DL1 extends in the second direction dr2 in the second region PER2, and in one embodiment, may include a portion overlapping the second vertical stem electrode part PE11b.

The second data line DL2 extends in the second direction dr2 in the first region PER1, and in one embodiment, may include a portion overlapping with the first vertical stem electrode part PE11b. The first data line DL2 is not overlapped with the second vertical stem electrode portion PE12b in the second region PER2, but is spaced apart in one direction in the first direction dr1 of the second vertical stem electrode portion PE12b. Can be.

The width of each data line DL1 and DL2 may be smaller than the width of each vertical stem electrode portion PE11b or PE12b. In one embodiment, the width of each data line DL1, DL2 may be 4 μm to 6 μm. By forming the data lines DL1 and DL2 smaller than the widths of the vertical stem electrode portions PE11b and PE12b, the light shielding effect can be increased.

The first data line DL1 extends in the second direction dr2 in the third area PER3, and the first source electrode through the first data connection DP1 formed to protrude in one direction in the first direction dr1. SE1). That is, the first data line DL1 is connected to the first switching element TR1 to provide the first data signal D1 to the first gate electrode GE1. The first data connection part DP1 may be disposed such that the first source electrode SE1 is formed between the first repair line RPL1 and the first gate line GL1 in a plane. A portion of the first data connection part DP1 may overlap the first gate electrode GE1.

The second data line DL2 may not be connected to the first switching element TR1 in the third area PER3. That is, the second data line DL2 does not provide the second data signal D2 to the first switching element TR1. However, the second data line DL2 may continue to extend in the second direction dr2 to be connected to the second switching element TR2 to provide the second data signal D2 to the second gate electrode GE2. . In this case, the first data line DL1 may not be connected to the second switching element TR2.

In the third region PER3, the first drain electrode DE1 and the first contact hole CNT1 are formed to have the same distance from the first data line DL1 and the second data line DL2. You can.

By arranging the data lines DL1 and DL2 so as to overlap the vertical stem electrode portions PE11b and PE12b, the aperture ratio of the liquid crystal display device 1 can be increased. That is, light transmittance and visibility of the liquid crystal display device 1 can be improved.

Referring to FIGS. 3 to 11 again, the first alignment layer (not shown) may be disposed on the transparent conductor TE. The first alignment layer may induce initial alignment of a plurality of liquid crystal molecules in the liquid crystal layer 400. The first alignment layer may be formed of a polymer organic material having an imide group in a repeating unit of the main chain in one embodiment.

Next, the second display panel 300 will be described.

The second substrate 310 is disposed to face the base substrate 210. The second substrate 310 may be formed of transparent glass or plastic, and in one embodiment, may be formed of the same material as the base substrate 210.

The black matrix 320 may be disposed on the second substrate 310. The black matrix 320 may overlap the third area PER3. The black matrix 320 may block light from being transmitted to the third area PER3. The material of the black matrix 320 is not particularly limited as long as it can block light. The black matrix 320 may be formed of a photosensitive composition, an organic material, or a metallic material, in one embodiment. The photosensitive composition may include, for example, a binder resin, a polymerizable monomer, a polymerizable oligomer, a pigment, and a dispersant. The metallic material may include chromium or the like.

The planarization layer 330 may be disposed on the black matrix 320. The planarization layer 330 may provide flatness to the common electrode CE. The material of the planarization layer 330 is not particularly limited, and may include an organic material or an inorganic material in one embodiment.

The common electrode CE may be disposed on the planarization layer 330. At least a portion of the common electrode CE may overlap the first pixel electrode PE1. The common electrode CE may be formed in a plate shape in one embodiment. However, the present invention is not limited thereto, and the common electrode CE may include a plurality of slits. The common electrode CE may be formed of a transparent conductive material such as ITO and IZO, or a reflective metal such as aluminum, silver, chromium, or an alloy thereof.

Although not illustrated in the drawing, a second alignment layer may be disposed on the common electrode CE. The second alignment layer may induce initial alignment of a plurality of liquid crystal molecules in the liquid crystal layer 400. The second alignment layer may be formed of the same material as the first alignment layer in one embodiment.

Next, the liquid crystal layer 400 will be described.

The liquid crystal layer 400 includes a plurality of liquid crystal molecules 411a to 411h. The liquid crystal molecules 411a to 411h may be vertically aligned in an initial alignment state with negative dielectric anisotropy in one embodiment. The plurality of liquid crystal molecules 411a to 411h may have a predetermined line pretilt angle in an initial alignment state. The initial alignment of the plurality of liquid crystal molecules 411a to 411h may be induced by the first and second alignment layers described above. When an electric field is formed between the first display panel 200 and the second display panel 300, the plurality of liquid crystal molecules 411a to 411h may change a polarization state of light passing through the liquid crystal layer by tilting or rotating in a specific direction. have.

Hereinafter, the domain region and liquid crystal control of the first pixel electrode PE1 will be described in more detail with reference to FIGS. 12 and 13. On the other hand, in the case of the liquid crystal molecules 411a to 411h shown in FIG. 13, a dark tail corresponds to a tail portion of the liquid crystal molecule and a white head corresponds to a head portion of the liquid crystal molecule.

12 is a diagram illustrating a domain region of the first pixel electrode illustrated in FIG. 4. 13 is a schematic diagram illustrating an inclined direction of a plurality of liquid crystal molecules in the first pixel electrode illustrated in FIG. 4.

12 and 13, the first pixel electrode PE1 may include first to eighth domain regions DM1 to DM8 as an embodiment. Each domain region DM1 to DM8 may be defined by a vertical stem electrode portion and a horizontal stem electrode portion of each sub-pixel electrode PE11 to PE12. Hereinafter, each domain area DM1 to DM8 will be described.

The first domain region DM1 is based on the region extending to the other side of the first direction dr1 based on the first vertical stem electrode portion PE11b in the first region PER1 and the first horizontal stem electrode portion PE11a. As an example, the region extending in one side of the second direction dr2 may be defined by the first branch electrode part PE11c included in the overlapping region.

The second domain region DM2 is based on the region extending to the other side of the first direction dr1 based on the first vertical stem electrode portion PE11b and the first horizontal stem electrode portion PE11a in the first region PER1. In the second direction (dr2) may be defined by the first branch electrode portion PE11c included in the region where the region extending to the other side overlaps.

The third domain region DM3 is based on the region extending in one direction in the first direction dr1 based on the first vertical stem electrode portion PE11b in the first region PER1 and the first horizontal stem electrode portion PE11a. As an example, the region extending in one side of the second direction dr2 may be defined by the first branch electrode part PE11c included in the overlapping region.

The fourth domain area DM4 is based on the first horizontal stem electrode part PE11a and the area extending in one direction in the first direction dr1 based on the first vertical stem electrode part PE11b in the first area PER1. In the second direction (dr2) may be defined by the first branch electrode portion PE11c included in the region where the region extending to the other side overlaps.

The fifth domain region DM5 is based on the region extending to the other side of the first direction dr1 based on the second vertical stem electrode portion PE12b in the second region PER2 and the second horizontal stem electrode portion PE12a. As an example, the region extending in one side of the second direction dr2 may be defined by the second branch electrode part PE12c included in the overlapping region.

The sixth domain region DM6 is based on the region extending to the other side of the first direction dr1 based on the second vertical stem electrode portion PE12b in the second region PER2 and the second horizontal stem electrode portion PE12a. In the second direction (dr2) may be defined by the second branch electrode portion PE12c included in the region where the region extending to the other side overlaps.

The seventh domain region DM7 is based on the region extending in one direction in the first direction dr1 based on the second vertical stem electrode portion PE12b in the second region PER2 and the second horizontal stem electrode portion PE12a. As an example, the region extending in one side of the second direction dr2 may be defined by the second branch electrode part PE12c included in the overlapping region.

The eighth domain region DM8 is based on the second horizontal stem electrode portion PE12a and the region extending in one direction in the first direction dr1 based on the second vertical stem electrode portion PE12b in the second region PER2. In the second direction (dr2) may be defined by the second branch electrode portion PE12c included in the region where the region extending to the other side overlaps.

In an embodiment, the first domain area DM1, the second domain area DM2, the seventh domain area DM7 and the eighth domain area DM8 may each have substantially the same area. The third to sixth domain regions DM3 to DM6 may each have substantially the same area. In addition, compared to the first domain region DM1, the second domain region DM2, the seventh domain region DM7 and the eighth domain region DM8, the third to sixth domain regions DM3 to DM6 are more It can have a large area. At this time, the sum of the areas of the first to fourth domain regions DM1 to DM4 may be equal to the sum of the areas of the fifth to eighth domain regions DM5 to DM8.

When the electric field is formed, the direction in which the liquid crystal molecules 411a to 411h in each domain region DM1 to DM8 are inclined will be described. The direction control in which the liquid crystal molecules 411a to 411h are inclined may also be expressed as azimuthal control.

When an electric field is formed in a plurality of liquid crystal molecules disposed in the first to fourth domain regions DM1 to DM4, in one embodiment, the first vertical stem electrode part PE11b and the first horizontal stem electrode part PE11a It can be controlled to tilt towards the intersection formed by. In other words, the plurality of liquid crystal molecules 411a to 411d may be controlled to be inclined in the opposite direction to the direction in which the first branch electrode part PE11c extends in the first to fourth domain regions DM1 to DM4. have.

The plurality of liquid crystal molecules 411a disposed in the first domain region DM1 is symmetrical to the plurality of liquid crystal molecules 411b disposed in the second domain region DM2 based on the first horizontal stem electrode portion PE11a. It can be controlled to tilt in the direction. That is, each of the liquid crystal molecules 411b and 411c disposed in the second domain region DM2 and the third domain region DM3, and each liquid crystal disposed in the third domain region DM3 and the fourth domain region DM4. The molecules 411c and 411d and the liquid crystal molecules 411d and 411a disposed in the fourth domain region DM4 and the first domain region DM1 may be controlled to be inclined in symmetrical directions with each other.

The plurality of liquid crystal molecules 411e to 411h disposed in the fifth to eighth domain regions DM5 to DM8 are the second vertical stem electrode as in the first to fourth domain regions DM1 to DM4 in one embodiment. It may be controlled to incline toward an intersection formed by the portion PE12b and the second horizontal stem electrode portion PE12a. In other words, the plurality of liquid crystal molecules 411e to 411h may be controlled to be inclined in the opposite direction to the direction in which the second branch electrode part PE12c extends in each of the fifth to eighth domain regions DM5 to DM8. have.

As a result, the plurality of liquid crystal molecules 411a to 411h disposed in the first to eighth domain regions DM1 to DM8 are controlled to be inclined in various directions, while the distribution of liquid crystal molecules inclined in each direction (411a to 411h) ) Can all be the same. Accordingly, the liquid crystal display device 1 according to an exemplary embodiment of the present invention can prevent a texture phenomenon and have uniform side visibility.

On the other hand, a plurality of liquid crystal molecules disposed between the first pixel electrode PE1 and the third pixel electrode PE3 may be controlled in a direction inclined by the branch electrode portion of each pixel electrode. On the other hand, since the branch electrode portions of each pixel electrode extend in a direction symmetric to each other, a plurality of liquid crystal molecules can also be controlled to be inclined in a relatively close branch electrode portion direction. Accordingly, the liquid crystal display device 1 according to an exemplary embodiment of the present invention is a separate trench for controlling liquid crystal molecules existing in a region between the first pixel electrode PE1 and the third pixel electrode PE3. Even if not formed on the organic insulating film, it is possible to control the inclined direction of the liquid crystal molecules. In addition, the second edge stem electrode portion EB12 is formed between the first pixel electrode PE1 and the third pixel electrode PE3, and thus is inclined by the branch electrode portions of each pixel electrode PE1, PE3. It can help control. In addition, since a separate trench is not formed in the organic insulating layer, the liquid crystal display device 1 may have an improved bulging effect.

Next, a liquid crystal display device according to another embodiment of the present invention will be described. However, a description overlapping with the contents described in FIGS. 1 to 13 will be omitted, and the same reference numerals will be used for the same components as those described in FIGS. 1 to 13.

14 is a layout view illustrating a first pixel portion of a liquid crystal display according to another exemplary embodiment of the present invention.

Referring to FIG. 14, this embodiment differs from the embodiment of FIG. 4 in that each branch electrode part includes branches having different electrode widths.

The first branch electrode part PE11c and the second branch electrode part PE12c may each include at least two branch electrodes having different electrode widths. In one embodiment, the first branch electrode part PE11c may have a first electrode width WPE1 having branches disposed on the other side of the first direction dr1 based on the first vertical stem electrode part PE11b. , Branches disposed on one side portion of the first direction dr1 based on the first vertical stem electrode portion PE11b may have a second electrode width WPE2 greater than the first electrode width WPE1. However, the present invention is not limited thereto, and the first electrode width WPE1 may be greater than the second electrode width WPE2.

First, the branches arranged on the other side portion of the first direction dr1 based on the first vertical stem electrode part PE11b in the first branch electrode part PE11c will be described.

As an example, the branch disposed at the other side of the first direction dr1 based on the first vertical stem electrode portion PE11b may have a first electrode width WPE1 of 2.4 μm to 2.8 μm. The first gap width WS1, which is an interval between adjacent branches, may be 3.2 μm to 3.6 μm. That is, the pitch between adjacent electrodes may be about 6 μm. The first angle θ1, which is an angle between the branch and the first horizontal stem electrode part PE11a, may be maintained at about 38 ° to about 40 °. In this specification, an angle means an acute angle.

Next, the branches arranged in one portion of the first direction dr1 based on the first vertical stem electrode part PE11b in the first branch electrode part PE11c will be described.

The branch disposed on one side portion of the first direction dr1 based on the first vertical stem electrode portion PE11b is an embodiment, and may have a second electrode width WPE2 of 3.2 μm to 3.6 μm. The second gap width WS2, which is an interval between adjacent branches, may be 2.4 μm to 2.8 μm. That is, similarly, the pitch between adjacent electrodes may be about 6 μm. In other words, the pitch of adjacent branches extending in the same direction from the first branch electrode portion PE11c may be constant. The second angle θ2, which is an angle between the branch and the first horizontal stem electrode part PE11a, may maintain about 45 °.

As described above, the first branch electrode portion PE11c is the ratio of the width of each electrode width formed on one side and the other side of the first direction dr1 and the adjacent branch, based on the first vertical stem electrode portion PE11b ( That is, the electrode width / space width (hereinafter, W / S) may be different. In the first branch electrode part PE11c, W / S on one side of the first direction dr1 based on the first vertical stem electrode part PE11b is based on the first vertical stem electrode part PE11b. dr1) It may be larger than W / S of the other side. The region including the branch electrode having a large W / S may be a lower-level voltage region than the region containing the branch electrode having a small W / S. The liquid crystal display device may include a high-level voltage region and a low-level voltage region by arranging branch electrodes having different widths in one pixel portion. As a result, the transmittance of the liquid crystal display of this embodiment can be improved, and visibility can be improved.

In addition, by making the electrode of the region forming a relatively low gradation voltage have an angle of less than 45 ° relative to the horizontal stem electrode portion, it is possible to more easily control the liquid crystal in the fringe region and reduce the delay increase rate. However, the transmittance may be improved by reducing the ratio of the transparent electrode in the electrode in the region forming the high gradation voltage.

In the second branch electrode part PE12c, in one embodiment, branches arranged on one side of the first direction dr1 based on the second vertical stem electrode part PE12b are disposed on the other side of the first direction dr1. It can be formed to have a smaller W / S than the branch.

However, the shape of the branch electrode portion is not limited to the above-described shape. In another embodiment, the W / S of the branch is not limited to being divided by each vertical stem electrode portion, and may be divided by the horizontal stem electrode portion, and the first branch electrode portion PE11c is the first vertical branch electrode. The branch disposed in the other direction of the first direction dr1 based on the negative may have a larger W / S than the branch disposed in one direction of the first direction dr1.

15 is a layout view illustrating a first pixel portion of a liquid crystal display according to another exemplary embodiment of the present invention.

15, the present embodiment differs from the embodiment of FIG. 4 in that a part of the edge stem electrode portion is omitted. In detail, in the present embodiment, the first edge stem electrode portion ('EB11' in FIG. 4) and the fourth edge stem electrode portion ('EB14' in FIG. 4) are omitted.

Each of the sub-pixel electrodes PE11 and PE12 may include one edge stem electrode portion EB12 and EB13 connected to each of the horizontal stem electrode portions PE11a and PE12a. For example, the first sub-pixel electrode PE11 includes only the second edge stem electrode portion EB12 connected to one end of the first horizontal dr1 of the first horizontal stem electrode portion PE11a, and the second sub-pixel. The electrode PE12 may include only the third edge stem electrode part EB13 connected to the other end of the first direction dr1 of the second horizontal stem electrode part PE12a.

Although each sub-pixel electrode PE11 and PE12 includes only one edge stem electrode portion EB12 and EB13, since the edge stem electrode portions EB12 and EB13 are disposed between adjacent pixel portions in the first direction dr1, It is possible to reduce the interference of liquid crystal alignment between adjacent pixel portions.

16 is a layout view illustrating a first pixel portion of a liquid crystal display according to another exemplary embodiment of the present invention.

Referring to FIG. 16, this embodiment differs from the embodiment of FIG. 4 in that the edge stem electrode portion is omitted.

Each of the sub-pixel electrodes PE11 and PE12 may not include an edge stem electrode part connected to one end and the other end of the first direction dr1 of each of the horizontal stem electrode parts PE11a and PE12a. Although not clearly illustrated, the branch electrode portions PE11c and PE12c and the horizontal stem electrode portions PE11a and PE12a may include portions overlapping with the gate black matrixes GB11, GB12, GB21, and GB22.

17 is a layout view illustrating a first pixel portion of a liquid crystal display according to another exemplary embodiment of the present invention.

Referring to FIG. 17, this embodiment includes a portion in which each data line DL1_1 and DL2_1 extends along a border of a first direction dr1 of each branch electrode part PE11c or PE12c, compared to the embodiment of FIG. 4. There is a difference in that.

In detail, the first data line DL1_1 extends in the second direction dr2 in the first area PER1, but is disposed along the other side edge of the first direction dr1 of the first branch electrode part PE11c. Can be. In this case, the first data line DL1_1 may include a portion partially overlapping the end of the first branch electrode part PE11c in the first area PER1.

The first data line DL1_1 may be extended in the second direction dr2 without the curved areas in the first area PER1 and the third area PER3, but is not limited thereto.

The first data line DL1_1 may include a portion extending in the second direction dr2 from the second region PER2 and overlapping the second vertical stem electrode portion PE12b. The first data line DL1_1 may include a curved area near the boundary between the second area PER2 and the third area PER3.

The second data line DL2_1 may include a portion extending from the first region PER1 in the second direction dr2 and overlapping with PE11a. The second data line DL2_1 may extend in the second direction from the third area PER3. The second data line DL2_1 may include a curved area near the boundary between the first area PER1 and the third area PER3.

The second data line DL2_1 extends in the second direction dr2 in the second region PER2, and may be disposed along one side edge of the first branch dr1 of the second branch electrode part PE12c. In this case, the second data line DL2_1 may include a portion partially overlapping the end of the second branch electrode part PE12c in the second area PER2.

By opening the data lines DL1_1 and DL2_1 to include portions extending along the borders of the first direction dr1 of the branch electrode portions PE11c and PE12c, the aperture ratio of the liquid crystal display may be increased.

18 is a layout view illustrating first to fourth pixel portions of a liquid crystal display according to another exemplary embodiment of the present invention. FIG. 19 is a view illustrating the first pixel unit illustrated in FIG. 18 in more detail.

Referring to FIGS. 18 and 19, the liquid crystal display device 2 of this embodiment has a vertical stem electrode part (eg, PE11, PE12_1) of each sub-pixel electrode, for example, compared to the embodiments of FIGS. 3 and 4 (eg, For example, the difference is that PE11b and PE12b_1 are arranged on a virtual, identical straight line extending in the second direction dr2. For convenience of description, description is made based on the first pixel portion PX1_5.

The first vertical stem electrode part PE11b and the second vertical stem electrode part PE12b may overlap in the second direction dr2. In one embodiment, the first vertical stem electrode portion PE11b and the second vertical stem electrode portion PE12b are virtually extending in the second direction dr2 of the first region PER1 and the second region PER2. The center line may be disposed to be biased toward one side in the first direction dr1. However, the present invention is not limited thereto, and the first vertical stem electrode portion PE11b and the second vertical stem electrode portion PE12b extend in the second direction dr2 of the first region PER1 and the second region PER2. It may be disposed to be biased toward the other side of the first direction dr1 from the imaginary center line.

In one embodiment, the first data line DL1 extends in the first direction dr1, and any vertical stem electrode part of the first pixel column including the first pixel part PX1_5 and the second pixel part PX2_5. The second data line DL2 extends in the first direction dr1 and may include all of the first pixel columns including the first pixel part PX1 and the second pixel part PX2. It may include a portion overlapping the vertical stem electrode portion.

20 is a layout view illustrating first to fourth pixel portions of a liquid crystal display according to another exemplary embodiment of the present invention. FIG. 21 is a view illustrating the first pixel unit illustrated in FIG. 20 in more detail. 22 is a diagram illustrating a gate conductor included in the first pixel portion illustrated in FIG. 20. 23 is a diagram illustrating a data conductor included in the first pixel unit illustrated in FIG. 20. 24 is a view illustrating a transparent conductor included in the first pixel unit illustrated in FIG. 20.

20 to 24, in the liquid crystal display device 3 of this embodiment, the gate lines GL1 and GL2 do not cross each pixel electrode PE1 and PE2, compared to the embodiments of FIGS. 3 to 7. The difference is that the gate lines GL1 and GL2 do not overlap each pixel electrode PE1 and PE2 and that the shielding electrode (eg, SC1) is included. In detail, unlike the first gate line GL1 passing between the first pixel electrode PE1 in the first pixel portion PX1 in the embodiment of FIG. 4, the first pixel portion PX1_6 in this embodiment is the first The one pixel electrode PE1 and the first gate line GL1 may not substantially overlap.

First, the arrangement relationship of the gate conductor GW_1, the data conductor DW_1, and the transparent conductor TE_1 will be described. For convenience of description, the first pixel unit PX1_6 will be exemplarily described.

The gate conductor GW_1 may include a first gate line GL1, a first gate electrode GE1, a first repair line RLP1, and a first storage line SL1. The gate conductor GW may further include gate black matrices GB11_1 and GB12_1 surrounding one side and the other side of the first direction dr1 of the first pixel electrode PE1. The first storage pattern may include a first storage line SL1, a first gate black matrix GB11_1 and a second gate black matrix GB12_1, which are spaced apart from each other.

The gate black matrices GB11_1 and GB12_1 have a shape extending in the second direction dr2, but the first gate black matrix GB11_1 disposed on the other side of the first direction dr1 of the first pixel electrode PE1 and The first gate electrode PE1 may include a second gate black matrix GB12_1 disposed on one side of the first direction dr1. In an embodiment, the first gate black matrix GB11_1 and the second gate black matrix GB12_1 that are disposed may be floating. For example, the first gate black matrix GB11_1 and the second gate black matrix GB12_1 may be spaced apart without being connected to the first storage line SL1. Here, the first storage line SL1 may be disposed on the other side of the second direction dr2 of the first pixel electrode PE1. Each gate black matrix (GB11_1, GB12_1) may function as a light blocking function.

The first gate line GL1, the first repair line RLP1, and the first storage line SL1 may extend in the first direction dr1, and may be spaced apart from each other in the second direction dr2. Meanwhile, the first gate line GL1, the first repair line RLP1, and the first storage line SL1 are adjacent to the first pixel electrode PE1 and the second pixel electrode PE2 in the second direction dr2. Can be placed between.

The first pixel electrode PE1 may include a first sub pixel electrode PE11 and a second sub pixel electrode PE12 arranged in the second direction dr2.

The first sub-pixel electrode PE11 and the second sub-pixel electrode PE12 are the horizontal stem electrode portions PE11a and PE12a, and the vertical stem electrode portions PE12a and PE12a, respectively, as in the embodiments of FIGS. 3 to 7. Edge stem electrode parts EB11, EB12, EB13, and EB14 may be included. Meanwhile, in one embodiment, the fourth electrode connecting portion PE13d extending from one end of the first vertical stem electrode portion PE11b of the first sub pixel electrode PE11 is the second of the second sub pixel electrode PE12. It may extend to the branch electrode portion PE12c. As such, the first sub-pixel electrode PE11 and the second sub-pixel electrode PE12 may be directly and electrically connected to each other. However, a shape in which the first sub-pixel electrode PE11 and the second sub-pixel electrode PE12 are connected to each other is not limited to the above-described shape, and may be various. In one embodiment, the second data line DL2_2 may include a portion overlapping the fourth electrode connection part PE13d.

The fifth electrode connection part PE13e extending from the second branch electrode part PE12c of the second sub-pixel electrode PE12 may be connected to the third electrode connection part PE13c. Here, the third electrode connection part PE13c may be connected to the first drain electrode extension part DEP1 through the first contact hole CNT1.

Meanwhile, the first edge stem electrode part EB11 and the third edge stem electrode part EB13 may be overlapped with the first gate black matrix GB11_1 in one embodiment. Likewise, the second edge stem electrode part EB13 and the fourth edge stem electrode part EB14 may both overlap the second gate black matrix GB12_1.

The transparent conductor TE_1 may further include a shielding electrode SC1. The shielding electrode SC1 extends in the second direction dr2, and the first shielding electrode SC1a and the second direction dr2 are disposed along the other side edge of the first direction dr1 of the first pixel portion PX1_6. ), The second shielding electrode SC1b and the first shielding electrode SC1a and the second shielding electrode SC1b disposed along one side edge of the first direction dr1 of the first pixel unit PX1_6. It may include a third shielding electrode (SC1c) for connecting.

The first shielding electrode SC1a may include a portion overlapping the first gate black matrix GB11_1. The first shielding electrode SC1a may be disposed outside the first edge stem electrode part EB11 and the third edge stem electrode part EB13 (ie, the other side of the first direction dr1).

The second shielding electrode SC1b may include a portion overlapping the second gate black matrix GB12_1. The second shielding electrode SC1b may be disposed outside the second edge stem electrode part EB12 and the fourth edge stem electrode part EB14 (ie, one side of the first direction dr1). Meanwhile, the second shielding electrode SC1b is between the adjacent edge stem electrode portions of the first pixel portion PX1_6 and the third pixel portion PX3_6 and the second pixel portion PX2_6 and the fourth pixel portion PX4_6. It may be disposed between the adjacent edge stem electrode portion.

The third shielding electrode SC1c is an embodiment, and generally extends in the first direction dr1, and may connect the first shielding electrode SC1a and the second shielding electrode SC1b. The third shielding electrode SC1c may have a shape that bypasses the first switching element TR1 to prevent shorting with the first switching element TR1. The third shielding electrode SC1c extends in the second direction dr2 and may connect all of the adjacent shielding electrodes SC1 in the first direction dr1.

A voltage having the same level as the common electrode CE is applied to the shielding electrode SC1, and accordingly, an electric field is not formed between the shielding electrode SC1 and the common electrode CE. In a conventional liquid crystal display device in which the shielding electrode SC1 is not provided, liquid crystal molecules located in an area corresponding to an edge of a pixel, that is, liquid crystal molecules near the data line, have a fringe electric field between the pixel electrode and the common electrode. Because of the weakness, the possibility of misalignment was high, and as a result, light leakage occurred. However, according to an embodiment of the present invention, the liquid crystal molecules located in the region corresponding to the edge of the pixel are shielded electrodes even though the fringe electric field between the common electrode CE and each pixel electrode LPE, UPE is weak. Since an electric field is not formed in the region where (SC1) is formed, misalignment of liquid crystal molecules positioned in the region is prevented. As a result, the light leakage phenomenon is reduced, and since the area of the black matrix ('320' in FIG. 8) formed to prevent the light leakage phenomenon can be reduced, the aperture ratio of the liquid crystal display may be increased.

The embodiments of the present invention have been mainly described above, but this is merely an example and does not limit the present invention, and a person having ordinary knowledge in the field to which the present invention belongs does not depart from the essential characteristics of the embodiments of the present invention. It will be appreciated that various modifications and applications not illustrated above are possible. For example, each component specifically shown in the embodiments of the present invention can be implemented by modification. And differences related to these modifications and applications should be construed as being included in the scope of the invention defined in the appended claims.

11: display
12: gate driver
13: data driver
14: timing control
210: base substrate
221: gate insulating layer
310: second substrate
330: planarization layer
400: liquid crystal layer
DL1 to DL4: first to fourth data lines
GL1, GL2: first gate line, second gate line
RPL1, RPL2: 1st repair wire, 2nd repair wire
SL1, SL2: first story line, second storage line
TR1, TR2, TR3, TR4: first to fourth switching elements
PE1 to PE4: first to fourth pixel electrodes
PE11: first sub-pixel electrode
PE12: second sub-pixel electrode
GB11, GB12: 1st gate black matrix, 2nd gate black matrix
PX1 to PX4: first to fourth pixel units
DM1 to DM8: first to eighth domain regions
CE: common electrode
320: black matrix

Claims (26)

A first stem electrode portion extending in a first direction, a second stem electrode portion extending in a second direction intersecting the first direction, and a plurality of first stem electrode portions or a plurality of extending portions from the second stem electrode portion A first sub-pixel electrode including a first branch electrode portion; And
And a first data line and a second data line that are spaced apart from each other and each overlap a portion of the first sub-pixel electrode and include a portion extending in the second direction.
Any one of the first data line and the second data line overlaps with the second stem electrode portion. According to claim 1,
The first data line is non-overlapping with the second stem electrode portion of the first sub-pixel electrode,
The second data line overlaps the second stem electrode portion of the first sub-pixel electrode,
The first data line partially overlaps the plurality of first branch electrode portions of the first sub-pixel electrode. According to claim 1,
The first direction and the second direction intersect vertically,
The plurality of first branch electrode units extend in a direction different from the first direction and the second direction. According to claim 1,
The first sub-pixel electrode is divided into a first region on one side and a second region on the other side based on the second stem electrode portion,
A liquid crystal display device having a width in the first direction of the first region and a width in the first direction of the second region. According to claim 1,
The first sub-pixel electrode,
A first edge stem electrode portion connected to one end of the first stem electrode portion and extending in the second direction; And
And a second edge stem electrode portion connected to the other end of the first stem electrode portion and extending in the second direction. The method of claim 5,
The first sub-pixel electrode,
A first edge connecting portion connecting the first edge stem electrode portion and the first stem electrode portion; And
And a second edge connecting portion connecting the second edge stem electrode portion and the first stem electrode portion. According to claim 1,
And a first gate line extending in the first direction,
The first gate line does not overlap the first sub-pixel electrode. The method of claim 7,
A first switching element further comprising a first gate electrode, a first source electrode, and a first drain electrode,
The first gate electrode is electrically connected to the first gate line,
The first source electrode is electrically connected to the first data line,
The first drain electrode is a liquid crystal display device that is electrically connected to the first sub-pixel electrode. The method of claim 8,
And a data connection part connecting the first data line and the first source electrode. The method of claim 8,
The second data line is not connected to the first switching element, the liquid crystal display device. The method of claim 7,
A first storage line extending in the first direction and spaced apart from the first gate line and the second direction is further included.
The first storage line includes a portion overlapping the first sub-pixel electrode. The method of claim 11,
A first gate black matrix extending in the second direction and disposed outside one side of the plurality of first branch electrode parts; And
And a second gate black matrix extending in the second direction and disposed outside the other side of the plurality of first branch electrode parts. The method of claim 12,
The first gate black matrix, the second gate black matrix, and the first storage line are disposed on the same layer and are spaced apart from each other. According to claim 1,
A third stem electrode portion extending in the first direction, a fourth stem electrode portion extending in the second direction, and a plurality of second branch electrodes extending from the third stem electrode portion or the fourth stem electrode portion A second sub-pixel electrode including a portion; And
Further comprising an electrode connection for electrically connecting the first sub-pixel electrode and the second sub-pixel electrode,
The first sub-pixel electrode, the electrode connection part, and the second sub-pixel electrode are sequentially arranged along the second direction. The method of claim 14,
The first data line and the second data line include a portion overlapping the second sub-pixel electrode,
The second data line includes a portion overlapping the second stem electrode portion and the fourth stem electrode portion. The method of claim 14,
The first data line and the second data line include a portion overlapping the second sub-pixel electrode,
The first data line includes a portion overlapping the fourth stem electrode portion,
The second data line includes a portion overlapping the second stem electrode part. According to claim 1,
The first data line includes a portion overlapping an end portion of the first branch electrode portion,
The second data line includes a portion overlapping the second stem electrode part. According to claim 1,
The plurality of first branch electrode portions include an electrode having a first electrode width, and an electrode having a second electrode width different from the first electrode width. The method of claim 18,
The plurality of first branch electrode portions have the same pitch between the branches arranged side by side with each other. The method of claim 18,
The first electrode width is 2.4 μm to 2.8 μm, and the second electrode width is 3.2 μm to 3.6 μm. The method of claim 18,
The plurality of first branch electrode portions include an electrode having an angle (acute angle) formed with the first stem electrode portion having a first angle, and an electrode having a second angle different from the first angle. The method of claim 21,
The first angle is a liquid crystal display device of 38 ° to 40 °. Base substrate;
A first gate line and a second gate line disposed on the base substrate, extending in a first direction, and spaced apart from each other;
A first data line and a second data line disposed insulated from the first gate line and the second gate line, extending in a second direction crossing the first direction, and spaced apart from each other;
A first switching element connected to the first gate line and the first data line;
A second switching element connected to the second gate line and the second data line;
A first pixel electrode connected to the first switching element; And
A second pixel electrode connected to the second switching element,
The first gate line and the second gate line are electrically connected,
The first data line and the second data line cross the first pixel electrode and the second pixel electrode,
The first pixel electrode includes a first stem electrode portion extending in the second direction,
The second pixel electrode includes a second stem electrode portion extending in the second direction,
The first data line includes a portion overlapping at least one of the first stem electrode portion and the second stem electrode portion. The method of claim 23,
The first data line includes a portion overlapping the second stem electrode portion, and the second data line includes a portion overlapping the first stem electrode portion. The method of claim 24,
Further comprising a color filter overlapping the first pixel electrode and the second pixel electrode,
The color filter is one color liquid crystal display. The method of claim 23,
The first pixel electrode and the second pixel electrode are arranged along the second direction.

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