KR102596040B1 - Liquid crystal panel - Google Patents

Abstract

Each of the plurality of pixels of the liquid crystal display panel includes a pixel electrode and a common electrode, and the plurality of pixels correspond to the active area in N rows (N is a natural number) and M rows (M is a natural number) on the first substrate. Arranged in columns. The thin film transistor is in contact with the pixel electrode through the first contact hole. The light-blocking spacer pattern is disposed on the second substrate to correspond between adjacent pixels among the plurality of pixels. The light-shielding spacer pattern is opened corresponding to each of the first pixel column and the Mth pixel column among the plurality of pixels. The light-blocking spacer pattern overlaps the first contact hole in the border area of the active area defined between the 1st and 2nd pixel rows and between the N-1th pixel row and the Nth pixel row. In an area inside the active area defined between the 2nd pixel row and the N-1st pixel row, the light-blocking spacer pattern overlaps the first contact hole and the thin film transistor.

Description

Liquid crystal display panel {LIQUID CRYSTAL PANEL}

The present invention relates to a liquid crystal display panel, and more specifically, to a liquid crystal display panel with improved display quality.

The liquid crystal display device includes a liquid crystal display panel and a backlight. The backlight outputs light, and the liquid crystal display panel displays images using the light output from the backlight. The liquid crystal display panel is equipped with a number of pixels arranged corresponding to the active area, and the liquid crystal display panel displays images using light output through the active area.

A liquid crystal display panel includes two substrates facing each other and liquid crystal sandwiched between the two substrates. A plurality of pixels may be formed on one of the two substrates, and each of the plurality of pixels may be composed of a pixel electrode and a common electrode. An electric field is formed between the pixel electrode and the common electrode, and the arrangement of the liquid crystal molecules of the liquid crystal is adjusted by the electric field. Accordingly, the amount of light passing through the liquid crystal display panel is adjusted, so that an image can be displayed on the liquid crystal display panel.

The purpose of the present invention is to provide a liquid crystal display panel with improved display quality including liquid crystal provided uniformly throughout the active area.

In order to achieve the above-described object of the present invention, a liquid crystal display panel with a defined active area includes a first substrate, a second substrate, liquid crystal, a plurality of pixels, a thin film transistor, and a light-blocking spacer pattern.

The first substrate and the second substrate face each other, and the liquid crystal is interposed between the first substrate and the second substrate. Each of the plurality of pixels includes a pixel electrode and a common electrode, and the plurality of pixels have N rows (N is a natural number) and M rows (M is a natural number) on the first substrate corresponding to the active area. Arranged in columns.

The thin film transistor is in contact with the pixel electrode through a first contact hole formed in an insulating film disposed on the first substrate. The light-blocking spacer pattern has light-blocking properties, and the light-blocking spacer pattern is disposed on the second substrate corresponding to adjacent pixels among the plurality of pixels.

The light blocking spacer pattern is opened corresponding to each of the first pixel column and the Mth pixel column among the plurality of pixels. In addition, the light-blocking spacer pattern is formed in a border area of the active area defined between the 1st pixel row and the 2nd pixel row and between the N-1th pixel row and the Nth pixel row among the plurality of pixels. It overlaps with the contact hole. Additionally, the light-blocking spacer pattern overlaps the first contact hole and the thin film transistor in an area inside the active area defined between the second pixel row and the N-1th pixel row among the plurality of pixels.

According to an embodiment of the present invention, light-blocking spacer patterns may be designed to have differential shapes depending on the position within the active area of the liquid crystal display panel. Accordingly, the effect of absorbing reflected external light can be improved in the inner area of the active area, and the non-spreading defect of the liquid crystal can be prevented in the border area of the active area.

1 is a perspective view of a liquid crystal display panel according to an embodiment of the present invention.
FIG. 2 is an enlarged view showing pixels arranged in the border area and inner area of the active area shown in FIG. 1.
FIG. 3 is a plan view showing a pixel disposed in the border area of the active area shown in FIG. 2 and a first spacer of a light-blocking spacer pattern disposed corresponding thereto.
FIG. 4 is a cross-sectional view showing a surface cut along II′ shown in FIG. 3.
FIG. 5 is a cross-sectional view showing a surface cut along II-II′ shown in FIG. 3.
FIG. 6 is a plan view showing a pixel disposed in an inner area of the active area shown in FIG. 2 and a second spacer of a light-blocking spacer pattern disposed corresponding thereto.
FIG. 7 is a cross-sectional view showing a surface cut along line III-III′ shown in FIG. 6.
FIG. 8 is a plan view showing pixels arranged in the active area of the liquid crystal display panel shown in FIG. 1 and light-blocking spacer patterns formed in correspondence with the pixels.

Hereinafter, embodiments of the present invention will be examined in detail with reference to the attached drawings. The purpose, features and effects of the present invention described above may be understood through the drawings and related embodiments. However, the present invention is not limited to the embodiments described herein, and may be applied and modified in various forms. Rather, the embodiments of the present invention, which will be described later, are provided to make the technical idea disclosed by the present invention clearer and further to enable the technical idea of the present invention to be sufficiently conveyed to those skilled in the art with average knowledge in the field to which the present invention pertains. Accordingly, the scope of the present invention should not be construed as being limited by the embodiments described later. Meanwhile, the same reference numbers in the following examples and drawings indicate the same components.

Additionally, in this specification, terms such as 'first' and 'second' are used not in a limiting sense but for the purpose of distinguishing one component from another component. In addition, when a part of a membrane, area, component, etc. is said to be 'on' or 'on' another part, it does not only mean that it is directly on top of the other part, but also that there is another membrane, area, component, etc. in between. Also includes cases.

FIG. 1 is a perspective view of a liquid crystal display panel according to an embodiment of the present invention, and FIG. 2 is an enlarged view of pixels arranged in the border area and inner area of the active area shown in FIG. 1.

Referring to Figures 1 and 2, the liquid crystal display panel 500 is mounted on an information processing device such as a TV, smartphone, monitor, and tablet PC and displays images using light output from a backlight (not shown).

An active area (AA) is defined in the liquid crystal display panel 500, and a plurality of pixels (PX) are arranged in the liquid crystal display panel 500 corresponding to the active area (AA). In this embodiment, the plurality of pixels PX are arranged in a matrix shape in the row direction in the first direction D1 and the column direction in the second direction D2.

In this embodiment, the liquid crystal display panel 500 includes an array substrate 100, a counter substrate 300, and liquid crystal (200 in FIG. 5). The array substrate 100 and the opposing substrate 300 are arranged to face each other, and a sealant is provided on either the array substrate 100 or the opposing substrate 300, so that the array substrate 100 and the opposing substrate ( 300) can be combined with each other.

Liquid crystal (200 in FIG. 5) is interposed between the array substrate 100 and the opposing substrate 300. Liquid crystal molecules are disposed in the liquid crystal, and more specifically, the liquid crystal fills a gap defined between the array substrate 100 and the opposing substrate 300. In this embodiment, the liquid crystal is provided in the form of a droplet on the center of either the array substrate 100 or the opposing substrate 300, and the liquid crystal is applied to the edges of the substrate by centrifugal force generated by rotating the substrate on which the liquid crystal is provided. It can be formed in a way that spreads towards it.

In this embodiment, each of the plurality of pixels PX may include a pixel electrode (PE in FIG. 3) and a common electrode (CE in FIG. 3). Each of the plurality of pixels (PX) controls the arrangement of liquid crystal molecules of the liquid crystal using an electric field generated between the pixel electrode and the common electrode. Additionally, a thin film transistor (TR) may be disposed adjacent to each of the plurality of pixels (PX), and the thin film transistor (TR) is electrically connected to the pixel electrode to switch the pixel voltage provided to the pixel electrode. You can.

In this embodiment, a light-blocking spacer pattern (SPN) is provided on the opposing substrate 300 between adjacent pixels among the plurality of pixels (PX). The light-shielding spacer pattern (SPN) is formed of a light-shielding resin that is a mixture of resin and carbon and may have the characteristic of absorbing light. The light-blocking spacer pattern (SPN) having the above-described structure can absorb external light traveling toward the liquid crystal display panel 500 from the outside and external light reflected from the liquid crystal display panel 500.

Therefore, the amount of external light reflected from the surface of the liquid crystal display panel 500 is reduced by the light-blocking spacer pattern (SPN), so that the clarity of the image displayed in the active area (AA) of the liquid crystal display panel 500 can be improved. there is. In addition, since the space between the array substrate 100 and the opposing substrate 300 is filled with a light-blocking spacer pattern (SPN), the amount of liquid crystal filled in the space between the array substrate 100 and the opposing substrate 300 is reduced. Effects may also occur.

In this embodiment, the light blocking spacer pattern SPN includes a plurality of first spacers SCS1 and a plurality of second spacers SCS2. Each of the plurality of first spacers (SCS1) overlaps the first contact hole (CH1) and the second contact hole (CH2). Each of the plurality of second spacers SCS2 may overlap the first contact hole CH1 and the second contact hole CH2 as well as the thin film transistor TR.

In this embodiment, the first length LE1 of each of the first plurality of spacers SCS1 in the first direction D1 is equal to the first length LE1 of each of the plurality of first spacers SCS1 in the first direction D1 of each of the second plurality of spacers SCS2. may be shorter than the second length LE2, and each size of the first spacers SCS1 may be smaller than each size of the second spacers SCS2. That is, each of the second spacers SCS2 has a structure that is more extended in the first direction D1 than each of the first spacers SCS1. Therefore, as shown in FIG. 2, if the number of first spacers (SCS1) formed to correspond to four pixels is four, the number of second spacers (SCS2) formed to correspond to four pixels is four. It can be less than 2.

In this embodiment, the light blocking spacer pattern (SPN) may be designed to have a differential shape depending on the position within the active area (AA). More specifically, in this embodiment, the active area (AA) may be defined as the upper side (E1), the lower side (E2), the left side (E3), and the right side (E4), and within the active area (AA) A plurality of first spacers SCS1 of the light-blocking spacer pattern SPN are disposed in the first edge area EA1 adjacent to the upper side E1. Additionally, a plurality of second spacers SCS2 of the light-blocking spacer pattern SPN are disposed in the first inner area CA1 of the active area AA.

Unlike the embodiment of the present invention, when the light-blocking spacer pattern (SPN) consisting of only a plurality of second spacers (SCS2) is applied to the entire active area (AA), the light-blocking spacer pattern (SPN) The effect of improving display quality and reducing the amount of liquid crystal used can be maximized, but in this case, when liquid crystal is injected between the array substrate 100 and the counter substrate 300, the light blocking spacer pattern (SPN) By interfering with the spreading operation of the liquid crystal, non-spreading of the liquid crystal may occur on the upper side (E1), lower side (E2), left side (E3), and right side (E4) of the active area (AA). Therefore, in an embodiment of the present invention, the light-blocking spacer pattern (SPN) may be differentially designed according to the position of the active area (AA) in consideration of the spreadability of the liquid crystal.

FIG. 3 is a plan view showing a pixel disposed in the border area of the active area shown in FIG. 2 and a first spacer of the light-blocking spacer pattern disposed corresponding thereto, and FIG. 4 is cut along line II′ shown in FIG. 3. It is a cross-sectional view showing the surface, and FIG. 5 is a cross-sectional view showing the surface cut along II-II′ shown in FIG. 3.

3, 4, and 5, the structures of the pixel (PX) disposed in the pixel area (PA) and the thin film transistor (TR) disposed in the non-pixel area (NPA) of the liquid crystal display panel 500 will be described. As follows.

The array substrate 100 of the liquid crystal display panel 500 includes a first substrate 10, a thin film transistor (TR), a gate line (GL), a data line (DL), a common voltage line (CL), and a storage capacitor (STG). , includes a first color filter (CF1) and a second color filter (CF2).

The first substrate 20 may be a transparent substrate such as a glass substrate. The gate line GL is formed of gate metal and disposed on the first substrate 20. The data line DL is formed of source/drain metal, and the data line DL is insulated from the gate line GL by the gate insulating layer L1 and intersects the gate line GL.

The thin film transistor (TR) includes a gate electrode (GE), an active pattern (AP), a source electrode (SE), and a drain electrode (DE). The gate electrode GE is branched from the gate line GL, and the active pattern AP overlaps the gate electrode GE with the gate insulating layer L1 interposed therebetween. The source electrode (SE) branches off from the data line (DL) and contacts the active pattern (AP). The drain electrode (DE) is spaced apart from the source electrode (SE) and is in contact with the active pattern (AP). The drain electrode (DE) is contacted to the pixel electrode 50 through the first contact hole (CH1), and thus a data signal output through the drain electrode (DE) can be provided to the pixel electrode 50.

The common voltage line CL is formed from the gate metal and is disposed on the first substrate 10 in parallel with the gate line GL. In this embodiment, the common voltage line CL is contacted to the common electrode CE through the second contact hole CH2. Accordingly, the common voltage may be provided to the common electrode (CE) through the common voltage line (CL).

The interlayer insulating film L2 covers the thin film transistor TR, and the first color filter CF1 and the second color filter CF2 may be disposed on the interlayer insulating film L2. That is, in this embodiment, the first color filter (CF1) and the second color filter (CF2) are provided on the array substrate 100, and the liquid crystal display panel 500 is a color filter on TFT (COT). It can have a structure.

In this embodiment, the first color filter CF1 may be a red color filter, and the second color filter CF2 may be a blue color filter. Therefore, as shown in FIG. 4, the second color filter (CF2) disposed in the pixel area (PA) is disposed below the pixel electrode (PE) and the common electrode (CE) to output light from the backlight (not shown). Filters white light into blue light. Accordingly, blue light may be output to the pixel PX by the second color filter CF2.

In another embodiment, the first color filter CF1 may be a color filter other than red, such as a green color filter or a blue color filter. Additionally, the second color filter (CF2) may be a color filter other than blue, such as a red color filter or a green color filter, and the second color filter (CF2) may be a color filter of a different color from the first color filter (CF1). You can.

On the other hand, as shown in FIG. 5, the second color filter CF2 may be stacked on the first color filter CF1 within the non-pixel area NPA. That is, the first and second color filters (CF1, CF2) having a multi-layer structure are connected to the circuit part that drives the pixel (PX), such as the thin film transistor (TR), the common voltage line (CL), and the thin film transistor (TR). May overlap. Accordingly, in the non-pixel area NPA, light output from the backlight (not shown) may be blocked by the stacked structure of the first and second color filters CF1 and CF2.

As in this embodiment, the liquid crystal display panel 500 has a light-blocking spacer pattern (SPN in FIG. 2) that blocks reflection of external light and a multi-layer structure that blocks light from the backlight in the non-pixel area (NPA). In the case of including the first and second color filters CF1 and CF2, the black matrix with light blocking properties as a component of the liquid crystal display panel 500 may be omitted.

The pixel electrode (PE) is connected through the first contact hole (CH1) defined by partially removing the first color filter (CF1), second color filter (CF2), and interlayer insulating film (L2) in the non-pixel area (NPA). It is contacted to the drain electrode (DE). In addition, a second contact hole (CH2) is defined by partially removing the first color filter (CF1), second color filter (CF2), interlayer insulating film (L2), and gate insulating film (L1) in the non-pixel area (NPA). The common electrode (CE) is contacted to the common voltage line (CL) through .

In the pixel area (PA), the pixel electrode (PE) and the common electrode (CE) are spaced apart from each other and arranged horizontally. In this embodiment, each of the pixel electrode (PE) and the common electrode (CE) includes a plurality of bar-shaped branches, and the branches of the pixel electrode (PE) and the common electrode ( CE) branches are spaced apart from each other and arranged alternately. Accordingly, a fringe field is created between the pixel electrode (PE) and the common electrode (CE), so that the arrangement direction of the liquid crystal molecules of the liquid crystal 200 can be adjusted.

In this embodiment, each of the pixel electrode (PE) and the common electrode (CE) may be formed of a transparent conductive material such as indium tin oxide (ITO) and indium zinc oxide (IZO).

In this embodiment, the storage capacitor STG may be formed by overlapping a portion of the common voltage line CL and a portion of the drain electrode DE. The storage capacitor (STG) may be charged with an amount of charge corresponding to the difference between the voltage corresponding to the data signal output from the thin film transistor (TR) and the common voltage of the common voltage line (CL).

The opposing substrate 300 includes a second substrate 310, a gap spacer GS, and a first spacer SCS1 constituting a light-blocking spacer pattern (SPN in FIG. 2).

The second substrate 310 may be a transparent substrate such as a glass substrate. The gap spacer GS may be disposed on the second substrate 310 and may contact the uppermost layer disposed on the first substrate 10 . Therefore, as shown in FIG. 4, the gap spacer GS may be in contact with the second color filter CF2 disposed on the first substrate 10, and accordingly, the gap spacer GS may contact the first substrate 10. A gap between 10 and the second substrate 310 may be maintained.

In this embodiment, like the light-blocking spacer pattern (SPN in FIG. 2) described above, the gap spacer GS may have light-blocking properties. Therefore, a gap filled with the liquid crystal 200 can be secured between the first substrate 10 and the second substrate 310 by the gap spacer GS, and external light is absorbed by the gap spacer GS. The display quality of the liquid crystal display panel 500 can be prevented from being deteriorated due to reflection of external light.

As previously described with reference to FIG. 2, the first spacer SCS1 forms a light-blocking spacer pattern (SPN in FIG. 2). In this embodiment, the first spacer (SCS1) has light blocking properties, and the first spacer (SCS1) is disposed on the second substrate 310 to block the liquid crystal display panel 500 from the outside of the liquid crystal display panel 500. External light traveling inward or reflected from metal layers provided in the liquid crystal display panel 500 is absorbed.

In this embodiment, the first spacer (SCS1) may overlap the first contact hole (CH1) and the second contact hole (CH2). As described above, when each of the pixel electrode (PE) and the common electrode (CE) is formed as a transparent electrode, external light passes through the transparent electrode to the drain electrode (DE) located at the bottom of the first contact hole (CH1). The external light reflected by the first spacer SCS1 may be absorbed even if it is reflected on the common voltage line CL located below the second contact hole CH2. Accordingly, the amount of reflected external light mixed with the display light for displaying an image on the liquid crystal display panel 500 is reduced by the first spacer SCS1, so the display quality of the liquid crystal display panel 500 can be improved.

In addition, since the gap between the array substrate 100 and the opposing substrate 300 can be filled in the non-pixel area (NPA) by the first spacer (SCS1), the volume of the liquid crystal 200 filled in the gap is reduced. It can be. As a result, the amount of liquid crystal 200 required for manufacturing the liquid crystal display panel 500 is reduced by the first spacer SCS1, thereby reducing the manufacturing cost of the liquid crystal display panel 500.

FIG. 6 is a plan view showing a pixel disposed in an inner area of the active area shown in FIG. 2 and a second spacer of a light-blocking spacer pattern disposed corresponding thereto, and FIG. 7 is a plan view along line III-III′ shown in FIG. 6. This is a cross-sectional view showing the cut surface. Meanwhile, when describing FIGS. 6 and 7, the reference numerals for the components described above are used together, and duplicate descriptions of the components are omitted.

Referring to FIGS. 6 and 7, a second spacer (SPN in FIG. 2) constituting a light-blocking spacer pattern (SPN in FIG. 2) corresponding to the pixel (PX) disposed in the inner area (CA) of the active area (AA in FIG. 2). SCS2) is deployed. In this embodiment, the second spacer (SCS2) has light blocking properties, and the second spacer (SCS2) is disposed on the second substrate 310 to block the liquid crystal display panel 500 from the outside of the liquid crystal display panel 500. It absorbs external light traveling inward or external light reflected from the metal layer provided in the liquid crystal display panel 500.

In this embodiment, the second spacer SCS2 may overlap the first contact hole CH1 and the second contact hole CH2 as well as the thin film transistor TR. Therefore, the external light reflected corresponding to the positions of the first and second contact holes CH1 and CH2 by the second spacer SCS2 and the external light reflected by the metal layers constituting the thin film transistor TR are absorbed. It can be.

Referring again to FIGS. 1 and 2, in order to prevent the display quality of the liquid crystal display panel 500 from being deteriorated due to external light reflection in the active area (AA), a light-blocking spacer pattern (SPN) is formed on the liquid crystal display panel 500. ) is provided, and the light-shielding spacer pattern (SPN) includes a first spacer (SCS1) and a second spacer (SCS2). Additionally, in this embodiment, one of the first spacer SCS1 and the second spacer SCS2 of the light blocking spacer pattern SPN is selectively disposed according to the position of the active area AA. This will be described in more detail with reference to FIG. 8 as follows.

FIG. 8 is a plan view showing pixels arranged in the active area of the liquid crystal display panel shown in FIG. 1 and light-blocking spacer patterns formed in correspondence with the pixels.

Referring to FIG. 8, in this embodiment, the active area (AA) may have a rectangular shape, and in this case, the active area (AA) has an upper side (E1), a lower side (E2), and a left side (E3). and the right side (E4). The upper side (E1) and the lower side (E2) are parallel to the first direction (D1) and face each other, and the left side (E3) and the right side (E4) are parallel to the second direction (D2) and face each other, Each of the left side (E3) and right side (E4) connects the upper side (E1) to the lower side (E2).

Additionally, the plurality of pixels PX are arranged in a matrix shape in the row direction of the first direction D1 and the column direction of the second direction D2 to correspond to the shape of the active area AA described above. More specifically, in this embodiment, a matrix composed of a plurality of pixels PX is composed of N pixel rows (N is a natural number) and M pixel columns (M is a natural number).

For example, the first pixel row (1L) is arranged closest to the upper side (E1), the second pixel row (2L) is arranged next to the first pixel row (1L), and the lower side (E2) The N-1th pixel row (N-1_L) and the Nth pixel row (NL) are arranged sequentially adjacent to , and the Nth pixel row (NL) is arranged closest to the lower side E2. Additionally, the 1st pixel column 1R is arranged closest to the left side E3, and the Mth pixel column MR is arranged closest to the right side E4.

The light blocking spacer pattern (SPN) is positioned correspondingly between adjacent pixels among the plurality of pixels (PX). In addition, as described above, in this embodiment, the light-blocking spacer pattern (SPN) includes a first spacer (SCS1) and a second spacer (SCS2), and the light-blocking spacer pattern (SPN) is formed according to the position within the active area (AA). One of the first and second spacers (SCS1, SCS2) of the SPN may be selectively disposed, or the light-blocking spacer pattern (SPN) may have an open shape.

Hereinafter, the first rule, second rule, and third rule applied in designing the light-shielding spacer pattern (SPN) according to this embodiment will be described in relation to the arrangement of the plurality of pixels (PX). .

According to the structure of the light-blocking spacer pattern (SPN) according to the first rule, the light-blocking spacer pattern (SPN) has an open shape corresponding to each of the first pixel column (1R) and the M-th pixel column (MR). . In other words, according to the first rule, the light-blocking spacer pattern SPN is not formed between two adjacent pixels PX in each of the first pixel column 1R and the M-th pixel column MR.

Unlike the embodiment of the present invention, when the light-blocking spacer pattern (SPN) is formed corresponding to each of the first pixel column (1R) and the M-th pixel column (MR), the light-blocking spacer pattern (SPN) is injected Since it may act as a structure that hinders the spread of liquid crystal, it may not be easy for the liquid crystal injected by the light-blocking spacer pattern (SPN) to spread to the left side (E3) and right side (E4). However, in the embodiment of the present invention, the light-shielding spacer pattern (SPN) has an open shape corresponding to each of the first pixel column (1R) and the M-th pixel column (MR), so that the injected liquid crystal is disposed on the left side ( It can easily spread to the E3) and right side (E4) sides. As a result, the injected liquid crystal does not spread to the left side (E3) and the right side (E4), thereby preventing the display quality of the liquid crystal display panel 500 from deteriorating.

According to the structure of the light-blocking spacer pattern (SPN) according to the second rule, the first border area (EA1) between the first pixel row (1L) and the second pixel row (2L) and the N-1th pixel row ( A plurality of first spacers SCS1 of the light-blocking spacer pattern SPN are formed in the second border area EA2 defined between (N-1_L) and the N-th pixel row (NL).

As previously described with reference to FIG. 3, each of the first plurality of spacers (SCS1) overlaps the first contact hole (CH1) and the second contact hole (CH2), but each of the plurality of first spacers (SCS1) overlaps the first contact hole (CH1) and the second contact hole (CH2). Since each does not overlap the thin film transistor TR, the size of the first spacers SCS1 may be smaller than the size of the second spacers SCS2. Therefore, in the portion adjacent to the four sides EA1-EA4 of the active area AA, the spreadability of the liquid crystal may be considered preferential among the characteristics of absorbing external light and the spreadability of the liquid crystal, so that the first portion of the active area AA And in the second edge areas EA1 and EA2, more first spacers SCS1 may be disposed than second spacers SCS2.

According to the structure of the light-blocking spacer pattern (SPN) according to the third rule, the inner area of the active area (AA) defined between the 2nd pixel row (2L) and the N-1th pixel row (N-1_L) A plurality of second spacers (SCS2) of the light-shielding spacer pattern (SPN) are formed. For example, the second light-blocking spacer pattern (SPN) is placed in the first inner area (CA1) between the K-th pixel row (K is a natural number smaller than N, KL) and the K+1-th pixel row (K+1_L). A plurality of spacers (SCS2) are formed. In addition, there are a plurality of second spacers (SCS2) of the light-shielding spacer pattern (SPN) in the second inner area (CA2) between the K+1-th pixel row (K+1_L) and the K+2-th pixel row (not shown). is formed by

As described above, each of the plurality of second spacers SCS2 overlaps the first and second contact holes CH1 and CH2 as well as the thin film transistor TR. That is, the first and second inner areas CA1 and CA2 of the active area AA may be given priority over the property of absorbing external light and the spreadability of the liquid crystal, and the reason is: This is because defects due to liquid crystal spread occur less frequently in the first and second inner areas CA1 and CA2 than in the first and second edge areas EA1 and EA2 within the active area AA. Accordingly, a second spacer (SCS2) that absorbs a larger amount of external light than the first spacer (SCS1) may be disposed in the first and second inner areas (CA1, CA2) of the active area (AA).

Although the description has been made with reference to the above examples, those skilled in the art can make various modifications and changes to the present invention without departing from the spirit and scope of the present invention as set forth in the scope of the claims below. You will understand.

500: liquid crystal display panel 100: array substrate
200: liquid crystal 300: opposing substrate
SPN: Light blocking spacer pattern SCS1: First spacer
SCS2: Second spacer AA: Active area
PX: Pixel GS: Gap Spacer
CH1: 1st contact hole CH2: 2nd contact hole

Claims (11)

In a liquid crystal display panel with a defined active area,
first substrate;
a second substrate facing the first substrate;
a liquid crystal interposed between the first substrate and the second substrate;
Each of them includes a pixel electrode and a common electrode and is arranged in the row and column directions, and is divided into N rows (N is a natural number) and M columns (M is a natural number) on the first substrate corresponding to the active area. multiple pixels arranged;
a thin film transistor in contact with the pixel electrode through a first contact hole formed in an insulating film disposed on the first substrate; and
A light-blocking spacer pattern has light-blocking properties and is disposed on the second substrate corresponding to adjacent pixels among the plurality of pixels,
The light-blocking spacer pattern has an open shape corresponding to each of the first pixel column and the Mth pixel column among the plurality of pixels,
In the border area of the active area defined between the 1st pixel row and the 2nd pixel row and between the N-1th pixel row and the Nth pixel row among the plurality of pixels, the light-blocking spacer pattern is formed in the first contact hole. overlaps with,
The liquid crystal display panel wherein the light-blocking spacer pattern overlaps the first contact hole and the thin film transistor in an area inside the active area defined between the second pixel row and the N-1th pixel row among the plurality of pixels. The method of claim 1, wherein the light blocking spacer pattern is:
a first spacer formed in the edge area, overlapping the first contact hole, and spaced apart from the thin film transistor; and
A liquid crystal display panel comprising a second spacer formed in the inner region and overlapping the first contact hole and the thin film transistor. According to claim 2,
Further comprising a common voltage line providing a common voltage to the common electrode,
The common electrode is contacted to the common voltage line through a second contact hole formed in an insulating film covering the common voltage line,
The liquid crystal display panel wherein the first spacer and the second spacer overlap the second contact hole. The liquid crystal display panel of claim 2, wherein the length of the first spacer in the row direction is shorter than the length of the second spacer in the row direction. The liquid crystal display panel of claim 2, wherein the first spacer has a size smaller than the second spacer. The method of claim 2, wherein a plurality of first spacers are arranged to be spaced apart from each other in the edge area, and a plurality of second spacers are arranged to be spaced apart from each other in the inner area, and are formed to correspond to a certain number of pixels. A liquid crystal display panel in which the number of first spacers is greater than the number of second spacers. According to claim 2,
Further comprising a gap spacer supporting the gap between the first substrate and the second substrate,
The gap spacer is disposed on the second substrate and is in contact with the uppermost layer disposed on the first substrate, and each of the first spacer and the second spacer is spaced apart from the uppermost layer disposed on the first substrate. The liquid crystal display panel according to claim 7, wherein the gap spacer has light blocking properties. According to claim 1,
Further comprising a color filter disposed on the first substrate corresponding to each of the plurality of pixels,
A liquid crystal display panel wherein the common electrode and the pixel electrode overlap the color filter. According to claim 1,
Further comprising color filters disposed on the first substrate corresponding to a non-pixel area of the active area,
A liquid crystal display panel in which the color filters have different colors and are stacked in a multi-layer structure to have light blocking properties. The liquid crystal display panel of claim 10, wherein the light-blocking spacer pattern overlaps the color filters having the multi-layer structure in the non-pixel area.

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