KR20120028758A - Array panel, liquid crystal panel comprising the same and liquid crystal display device comprising the same - Google Patents

Array panel, liquid crystal panel comprising the same and liquid crystal display device comprising the same Download PDF

Info

Publication number
KR20120028758A
KR20120028758A KR1020100090783A KR20100090783A KR20120028758A KR 20120028758 A KR20120028758 A KR 20120028758A KR 1020100090783 A KR1020100090783 A KR 1020100090783A KR 20100090783 A KR20100090783 A KR 20100090783A KR 20120028758 A KR20120028758 A KR 20120028758A
Authority
KR
South Korea
Prior art keywords
display area
liquid crystal
insulating film
substrate
layer
Prior art date
Application number
KR1020100090783A
Other languages
Korean (ko)
Inventor
박동현
정훈
Original Assignee
엘지디스플레이 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 엘지디스플레이 주식회사 filed Critical 엘지디스플레이 주식회사
Priority to KR1020100090783A priority Critical patent/KR20120028758A/en
Publication of KR20120028758A publication Critical patent/KR20120028758A/en

Links

Images

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133345—Insulating layers
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133509—Filters, e.g. light shielding masks
    • G02F1/133512—Light shielding layers, e.g. black matrix
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1339—Gaskets; Spacers; Sealing of cells
    • G02F1/13394—Gaskets; Spacers; Sealing of cells spacers regularly patterned on the cell subtrate, e.g. walls, pillars
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1341—Filling or closing of cells
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)

Abstract

PURPOSE: An array substrate, a liquid crystal panel including the same, and an LCD including the same are provided to enhance the bonding of the liquid crystal panel, thereby improving a screen quality of the LCD. CONSTITUTION: A lower substrate(140) and a upper substrate(180) are boned. A liquid crystal layer(190) is interposed in a separated space between the lower substrate and the upper substrate. The lower substrate and the upper substrate are bonded facing each other in a seal pattern. The seal pattern is sprayed along a image non display area of the upper substrate.

Description

Array substrate, liquid crystal panel comprising the same and liquid crystal display comprising the same

The present invention relates to an array substrate, a liquid crystal panel including the same, and a liquid crystal display device including the same, and more particularly, to an array substrate capable of improving the screen quality of the liquid crystal display device by improving the bonding force of the liquid crystal panel. It relates to a liquid crystal panel and a liquid crystal display including the same.

The display device is a visual information transmission medium, which visually displays data in the form of characters or figures on a CRT surface.

In general, a flat panel display (FPD) device is a thinner and lighter image display device using a TV or computer monitor CRT, which includes liquid crystal display (LCD) and PDP (gas discharge). Plasma Display Panel (PDP), OLED (Organic Light Emitting), an organic material made using a luminescent phenomenon that emits light when a current flows in a fluorescent organic compound, and EDP (using a phenomenon in which charged particles in an electric field move toward the anode or cathode). (Electric Paper Display).

The most representative LCD among flat panel display devices displays a desired image by individually supplying data signals according to image information to pixels arranged in an active matrix form to adjust light transmittance of the pixels.

1 is a plan view showing a liquid crystal panel of a conventional liquid crystal display device, FIG. 2 is a cross-sectional view taken along the line II ′ of FIG. 1, FIG. 3 is a cross-sectional view showing another liquid crystal panel of a conventional liquid crystal display device. 4 is a view for explaining the problem of FIG.

1 and 2, the lower substrate 40 and the upper substrate 80 divided into the image display region 10 and the image non-display region 20 are bonded to each other, and the lower substrate 40 and the upper substrate are bonded together. The liquid crystal layer 90 is interposed with a constant cell gap in the space between the spaces 80.

The lower and upper substrates 40 and 80 and a liquid crystal layer (not shown) are referred to as the liquid crystal panel 100. A backlight unit (not shown) serving as a light source is disposed on the rear surface of the lower substrate 40.

Here, the lower and upper substrates 40 and 80 are opposed to each other by the seal pattern 30. In this case, the seal pattern 30 serves to maintain a constant cell gap of the lower and upper substrates 40 and 80 and prevent the injected liquid crystal from leaking to the outside.

A black matrix 82 that blocks light and an overcoat layer 84 are formed below the black substrate 82 for the purpose of planarization. Although not shown in the drawings, a red (R), green (G), and blue (B) sub color filter sequentially patterned to realize color between the black matrix 82 and the overcoat layer 84 is included. A color filter layer (not shown) may be formed.

On the other hand, a buffer film 42 is formed on the lower substrate 40. In this case, a gate line (not shown) including a gate electrode (not shown) may be formed in the buffer layer 42. The gate insulating film 44 and the interlayer insulating film 46 are sequentially formed on the buffer film 42.

A metal film 48 including a data line (not shown) is formed on the interlayer insulating film 46 to vertically cross the gate line. In this case, the data line includes source and drain electrodes (not shown), and an ohmic contact layer (not shown) made of an amorphous silicon layer (n + a-Si: H) containing impurities under the source and drain electrodes and a pure amorphous material. An active layer (not shown) made of silicon (a-Si: H) may be formed.

On the metal film 48, a protective film 52 made of silicon nitride (SiNx), an insulating film 54 made of photo acryl and a seal contact film 56 made of silicon nitride (SiNx) are sequentially formed.

In the liquid crystal panel 100 as described above, the lower substrate 40 on which the array element is formed is bonded to the upper substrate 80 on which the color filter is formed, and then a cell process step of injecting liquid crystal is performed.

In order to bond the lower substrate 40 and the upper substrate 80, the lower substrate 40 is attached to the lower substrate 40 while the seal pattern 30 is applied along the image non-display area 20 of the upper substrate 80.

In the liquid crystal display having the structure as described above, the insulating film 54 is made of photo acryl, which is an organic insulating material, on the protective film 52 formed of silicon nitride (SiNx), which is an inorganic insulating material, in order to improve the high opening ratio characteristics. The seal contact layer 56 is formed of silicon nitride (SiNx), which is an inorganic insulating material.

However, since the insulating film 54 formed of the organic insulating material is bonded to the lower substrate 40 and the upper substrate 80, the adhesion between the protective film 52 formed of the inorganic insulating material and the seal contact film 56 is not good. In the portion 'A' or 'B' of FIG. 2, a separation phenomenon occurs between the lower substrate 40 and the upper substrate 80.

In order to solve the above problems, in FIG. 3, the lower substrate 40 is removed by removing the insulating layer 54a existing in the region where the seal pattern 30 is formed along the image non-display area 20 of the lower substrate 40. And adhesion between the upper substrate 80 and the upper substrate 80 was improved.

However, as shown in FIG. 3C, the insulating film 54a is present in the image display area 10 of the lower substrate 40, and the insulating film 54a is removed in the non-image display area 20, thereby providing a step difference. Will occur.

In addition, as shown in 'D' of FIG. 4, when the screen is driven, a gap is generated due to a step, which causes a screen defect. As a result, the screen quality of the liquid crystal display device is reduced.

The present invention is to solve the above problems, to provide an array substrate that can improve the screen quality of the liquid crystal display device by improving the adhesion of the liquid crystal panel, a liquid crystal panel comprising the same and a liquid crystal display device comprising the same. .

Other objects and features of the present invention will be described in the configuration and claims of the invention described below.

In order to achieve the above objects, an array substrate according to an embodiment of the present invention, an insulating substrate including an image display area and an image non-display area, a plurality of thin film transistors formed in the image display area, including the thin film transistor A protective film formed on the entire surface of the substrate and an insulating film formed on the protective film and formed to have a predetermined pattern in the image non-display area.

And a seal contact film formed on the insulating film in the image non-display area.

The seal contact film is formed of an inorganic insulating material.

The non-image display area is an entire edge of the insulating substrate.

The insulating film is formed to have a predetermined pattern on an edge portion of the non-image display area.

The insulating film is formed to have a predetermined pattern in the major axis direction of the non-image display area.

The predetermined pattern is formed to have a predetermined interval.

The predetermined pattern is formed in a bar shape.

The protective film is formed of an inorganic insulating material.

The insulating film is formed of an organic insulating material.

In addition, the liquid crystal panel according to the exemplary embodiment of the present invention may include an insulating substrate including an image display area and a non-image display area, a plurality of thin film transistors formed on the image display area, and a protective film formed on the entire surface of the substrate including the thin film transistors. And an array substrate formed on the passivation layer, the array substrate including an insulating layer formed to have a predetermined pattern in the image non-display area, a black matrix disposed to correspond to the array substrate and blocking light, and an overcoat layer formed under the black matrix. And a liquid crystal layer interposed between the array substrate and the color filter substrate.

A seal pattern is formed on the color filter substrate at a position corresponding to the insulating layer of the array substrate.

The spacing between the predetermined patterns depends on the viscosity of the seal pattern.

And a seal contact film formed on the insulating film in the image non-display area.

The seal contact film is formed of an inorganic insulating material.

The non-image display area is an entire edge of the insulating substrate.

The insulating film is formed to have a predetermined pattern on an edge portion of the non-image display area.

The insulating film is formed to have a predetermined pattern in the major axis direction of the non-image display area.

The predetermined pattern is formed to have a predetermined interval.

The predetermined pattern is formed in a bar shape.

The protective film is formed of an inorganic insulating material.

The insulating film is formed of an organic insulating material.

And a color filter formed between the black matrix and the overcoat layer.

In addition, the liquid crystal display device according to an embodiment of the present invention, an image, and includes a liquid crystal panel including any one of claims 11 to 23 and a backlight unit for providing light to the liquid crystal panel. .

As described above, the array substrate, the liquid crystal panel including the same, and the liquid crystal display including the same according to the present invention provide an effect of improving the bonding quality of the liquid crystal panel to improve the screen quality of the liquid crystal display.

1 is a plan view showing a liquid crystal panel of a conventional liquid crystal display device.
FIG. 2 is a cross-sectional view taken along the line II ′ of FIG. 1. FIG.
3 is a cross-sectional view showing another liquid crystal panel of the conventional liquid crystal display device.
4 is a view for explaining the problem of FIG.
5 is a plan view illustrating a liquid crystal panel of the liquid crystal display according to the first embodiment of the present invention.
FIG. 6 is a cross-sectional view taken along the line II-II ′ of FIG. 5.
FIG. 7 is a cross-sectional view taken along line III-III ′ of FIG. 6.
8 is a plan view illustrating a liquid crystal panel of a liquid crystal display according to a second exemplary embodiment of the present invention.
9 is a plan view illustrating a liquid crystal panel of a liquid crystal display according to a third exemplary embodiment of the present invention.
10 is a plan view illustrating a liquid crystal panel of the liquid crystal display according to the fourth embodiment of the present invention.
FIG. 11 is a cross-sectional view taken along the line VV ′ of FIG. 10.
12 is a cross-sectional view taken along the line VI-VI ′ of FIG. 11.
FIG. 13 is a diagram for explaining the problem in FIG. 12; FIG.
14 is a plan view illustrating a liquid crystal panel of a liquid crystal display according to a fifth exemplary embodiment of the present invention.
15 is a plan view illustrating a liquid crystal panel of a liquid crystal display according to a sixth embodiment of the present invention.

Hereinafter, exemplary embodiments of an array substrate, a liquid crystal panel including the same, and a liquid crystal display including the same according to the present invention will be described in detail with reference to the accompanying drawings.

5 is a plan view illustrating a liquid crystal panel of a liquid crystal display according to a first exemplary embodiment of the present invention, FIG. 6 is a cross-sectional view taken along the line II-II 'of FIG. 5, and FIG. 7 is a III-III ′ of FIG. 6. A cross section taken along a line.

5 to 7, the lower substrate 140 and the upper substrate 180 respectively divided into the image display area 210 and the non-image display area 220 are bonded to each other, and the lower substrate 140 and the upper substrate are bonded to each other. The liquid crystal layer 190 is interposed with a predetermined cell gap in the space between the spaces 180.

The lower and upper substrates 140 and 180 and the liquid crystal layer 190 including the liquid crystal panel 200 are referred to, and although not shown in the drawing, a backlight unit serving as a light source may be disposed on the rear surface of the lower substrate 140. .

In this case, the light source may be a direct type disposed under the liquid crystal panel 200 or an edge type disposed on one side of the liquid crystal panel 200. In addition, the light source receives power from an external power source to irradiate light to the liquid crystal panel 200, and may include a light emitting diode (LED) in which at least one is arranged in a line on a flexible circuit board (not shown). Lamp type Cold Cathode Fluorescent Lamps (CCFLs) may also be used.

Here, the lower and upper substrates 140 and 180 are opposed to each other by the seal pattern 230. In this case, the seal pattern 230 may be applied along the image non-display area 220 of the upper substrate 180, and serves to maintain a constant cell gap of the lower and upper substrates 140 and 180, and the injected liquid crystals to the outside. To prevent leakage.

A black matrix 182 that blocks light and an overcoat layer 184 are formed under the black matrix 182 under the upper substrate 180. Although not shown in the drawings, a red (R), green (G), and blue (B) sub color filter sequentially patterned to realize color between the black matrix 182 and the overcoat layer 184 is included. A color filter layer (not shown) may be formed. In addition, although not shown in the drawing, a common electrode may be formed on the color filter layer.

The buffer layer 142 is formed on the lower substrate 140. In this case, a gate line (not shown) including a gate electrode (not shown) may be formed in the buffer layer 142. In addition, the gate insulating film 144 and the interlayer insulating film 146 are sequentially formed on the buffer film 142.

A metal film 148 including a data line (not shown) is formed on the interlayer insulating film 146 so as to vertically cross the gate line. In this case, the data line includes source and drain electrodes (not shown), and an ohmic contact layer (not shown) made of an amorphous silicon layer (n + a-Si: H) containing impurities under the source and drain electrodes and a pure amorphous material. An active layer (not shown) made of silicon (a-Si: H) may be formed.

Although not shown, a pixel electrode electrically connected to the drain electrode through the contact hole may be formed on the data line corresponding to the image display area 210 of the lower substrate 140.

The passivation layer 152 is formed on the metal layer 148, and the passivation layer 152 may be formed of, for example, silicon nitride (SiNx), which is an inorganic insulating material.

In the first embodiment of the present invention, as shown in Figure 6, in the process of bonding the lower substrate 140 and the upper substrate 180, the lower substrate to improve the bonding force between the lower substrate 140 and the upper substrate 180 An insulating film 154a formed to have a predetermined pattern is formed on the passivation layer 152 corresponding to the image non-display area 220 of 140.

The insulating layer 154a may be formed of, for example, photo acryl, which is an organic insulating material. In this case, the pattern of the insulating film 154a may be formed in a bar shape, and the patterns of the insulating film 154a may be formed to have a predetermined interval (E). In this case, the gap E between the patterns of the insulating layer 154a may vary depending on the viscosity of the seal pattern 230. For example, the higher the viscosity of the seal pattern 230, the narrower the gap E between the patterns of the insulating layer 154a.

As described above, in the first embodiment of the present invention, the lower substrate 140 is formed by forming the insulating layer 154a on the passivation layer 152 corresponding to the non-image display area 220 of the lower substrate 140. And adhesion between the passivation layer 152 and the seal pattern 230 when the upper substrate 180 is bonded to each other are improved. The reason is that since the insulating film 154a is formed to have a predetermined pattern, the insulating film 154a is removed between the protective film 152 and the seal pattern 230 as shown in 'F' of FIG. The adhesion between the 230 is improved.

In the first exemplary embodiment of the present invention, the insulating film 154a is formed on the passivation layer 152 corresponding to the non-image display area 220 of the lower substrate 140 to form the insulating layer 154a in FIG. As described above, an area in which the seal pattern 230 is in contact with the passivation layer 152 and the insulating layer 154a is increased to improve adhesion between the lower substrate 140 and the upper substrate 180.

In addition, the liquid crystal layer 190 of the liquid crystal display according to the first embodiment of the present invention, the liquid crystal is twisted nematic (TN) that transmits light by changing the liquid crystal arrangement state according to the application of an electric field 90 degrees twisted angle Mode liquid crystals can be used.

Meanwhile, the liquid crystal display according to the first exemplary embodiment of the present invention forms an at least one pair of electrodes arranged in parallel in a pixel to form a transverse electric field parallel to the substrate, thereby inducing liquid crystal molecules in a planar manner. Mode is also available.

8 is a plan view illustrating a liquid crystal panel of a liquid crystal display according to a second exemplary embodiment of the present invention.

Referring to FIG. 8, in the second embodiment of the present invention, a protective film corresponding to the corner areas a, b, c, and d of the non-image display area 220 of the lower substrate 140, as in 'a' is described. Except for patterning the insulating film 154a to have a predetermined interval on the 152 has the same structure as the first embodiment of the present invention. Here, sectional drawing of the a part of FIG. 8 is the same as sectional drawing shown in FIG.

In the second embodiment of the present invention, since the portion where the bonding force is weakest when the lower substrate 140 and the lower substrate 180 are bonded to each other corresponds to an edge region of the substrate, the image non-display area 220 of the lower substrate 140 is formed. The insulating layer 154a is patterned on the passivation layer 152 corresponding to the corner regions a, b, c, and d of the predetermined area.

As described above, in the second embodiment of the present invention, the insulating film 154a is formed on the passivation layer 152 corresponding to the corner areas a, b, c, and d of the non-image display area 220 of the lower substrate 140. By forming the substrate to have a predetermined interval, the bonding force between the passivation layer 152 and the seal pattern 230 is improved when the lower substrate 140 and the upper substrate 180 are bonded together.

In addition, in the second exemplary embodiment of the present invention, the insulating film 154a is formed on the passivation layer 152 corresponding to the non-image display area 220 of the lower substrate 140 so that the seal pattern 230 is formed on the passivation layer. The area in contact with the 152 and the insulating layer 154a is increased to improve the bonding force between the lower substrate 140 and the upper substrate 180.

9 is a plan view illustrating a liquid crystal panel of a liquid crystal display according to a third exemplary embodiment of the present invention.

Referring to FIG. 9, in the third embodiment of the present invention, the insulating film 154a is formed on the passivation layer 152 corresponding to the long axis direction of the image non-display area 220 of the lower substrate 140. Except for patterning to have a predetermined interval, it has the same structure as the first embodiment of the present invention. Here, the sectional view of the 'H' portion of FIG. 8 is the same as the sectional view shown in FIG.

According to the third exemplary embodiment of the present invention, the insulating film 154a is patterned on the passivation layer 152 corresponding to the long axis direction of the non-image display area 220 of the lower substrate 140 so as to have a predetermined distance from the lower substrate 140. When the upper substrate 180 is bonded, the bonding force between the protective layer 152 and the seal pattern 230 is improved.

In addition, in the third embodiment of the present invention, the area in which the seal pattern 230 is in contact with the passivation layer 152 and the insulating layer 154a is increased to improve the bonding force between the lower substrate 140 and the upper substrate 180. .

FIG. 10 is a plan view illustrating a liquid crystal panel of a liquid crystal display according to a fourth exemplary embodiment of the present invention, FIG. 11 is a cross-sectional view taken along the line VV ′ of FIG. 10, and FIG. 12 is a VI-VI ′ of FIG. 11. It is sectional drawing cut along the line, and FIG. 13 is a figure for demonstrating the problem of FIG.

10 to 12, the lower substrate 240 and the upper substrate 280 divided into the image display region 310 and the non-image display region 320 are bonded to each other, and the lower substrate 240 and the upper substrate are bonded to each other. The liquid crystal layer 290 is interposed with a predetermined cell gap in the space between the spaces 280.

The lower and upper substrates 240 and 280 and the liquid crystal layer 290 are included in the liquid crystal panel 300. Although not shown in the drawing, a backlight unit serving as a light source may be disposed on the rear surface of the lower substrate 240. .

In this case, the light source may be a direct type disposed below the liquid crystal panel 300 or an edge type disposed on one side of the liquid crystal panel 300. In addition, the light source receives power from an external power source to irradiate light to the liquid crystal panel 300, and may include a light emitting diode (LED) in which at least one of the light sources is arranged in a line on a flexible circuit board (not shown). Lamp type Cold Cathode Fluorescent Lamps (CCFLs) may also be used.

Here, the lower and upper substrates 240 and 280 are opposed to each other by the seal pattern 330. In this case, the seal pattern 330 may be applied along the image non-display area 320 of the upper substrate 240, and serves to maintain a constant cell gap of the lower and upper substrates 240 and 280 and the injected liquid crystal to the outside. To prevent leakage.

A black matrix 282 that blocks light and an overcoat layer 284 are formed below the black matrix 282 under the upper substrate 280. Although not shown in the drawings, a red (R), green (G), and blue (B) sub color filter sequentially patterned to realize color between the black matrix 282 and the overcoat layer 284 is included. A color filter layer (not shown) may be formed.

The buffer layer 242 is formed on the lower substrate 240. In this case, a gate line (not shown) including a gate electrode (not shown) may be formed in the buffer layer 242. In addition, the gate insulating film 244 and the interlayer insulating film 246 are sequentially formed on the buffer film 242.

A metal film 248 including a data line (not shown) is formed on the interlayer insulating film 246 so as to vertically cross the gate line. In this case, the data line includes source and drain electrodes (not shown), and an ohmic contact layer (not shown) made of an amorphous silicon layer (n + a-Si: H) containing impurities under the source and drain electrodes and a pure amorphous material. An active layer (not shown) made of silicon (a-Si: H) may be formed.

Although not illustrated, a pixel electrode and a common electrode electrically connected to the drain electrode through the contact hole may be formed on the data line corresponding to the image display area 310 of the lower substrate 240.

The passivation layer 252, the insulating layer 254a, and the seal contact layer 256 are sequentially formed on the metal layer 248. In this case, the insulating film and the protective films 252 and 256 may be formed of, for example, silicon nitride (SiNx), which is an inorganic insulating material, and the insulating film 254a may be formed of, for example, photo acryl, which is an organic insulating material. Can be formed.

In the fourth exemplary embodiment of the present invention, as shown in FIG. 11, the lower substrate in order to improve the bonding force between the lower substrate 240 and the upper substrate 280 in the process of bonding the lower substrate 240 and the upper substrate 280. An insulating film 254a is formed on the passivation film 252 corresponding to the image non-display area 320 of 240 to have a predetermined pattern.

Here, the pattern of the insulating film 254a may be formed in a bar shape, and the patterns of the insulating film 254a may be formed to have a predetermined interval (E). In this case, the gap I between the patterns of the insulating layer 254a may vary depending on the viscosity of the seal pattern 330. For example, the higher the viscosity of the seal pattern 330, the narrower the gap I between the patterns of the insulating layer 254a.

As described above, in the fourth exemplary embodiment of the present invention, the lower substrate 240 is formed by forming the insulating layer 254a on the passivation layer 252 corresponding to the image non-display area 320 of the lower substrate 240. And adhesion between the protective layer 252 and the seal contact layer 256 when the upper substrate 280 is bonded to each other are improved. The reason is that since the insulating film 254a has a predetermined pattern, the insulating film 254a is removed between the protective film 252 and the seal contact film 256 as shown in 'K' of FIG. The adhesion between the contact films 256 is improved.

In the fourth exemplary embodiment of the present invention, the insulating film 254a is formed on the passivation layer 252 corresponding to the non-image display area 320 of the lower substrate 240 to form a predetermined pattern in FIG. As described above, an area in which the seal pattern 330 is in contact with the seal contact layer 256 is increased to improve the bonding force between the lower substrate 240 and the upper substrate 280.

3 and 4, the liquid crystal panel of the conventional liquid crystal display device removes the insulating film 54a formed in the image non-display area 20 of the lower substrate 40 so that the lower substrate 40 and the upper substrate ( 80) improved adhesion. However, a step was generated in the region where the insulating film 54a was removed, thereby causing gap spots during screen driving.

In the fourth exemplary embodiment of the present invention, as shown in FIG. 12, since the insulating film 254a is patterned at a predetermined interval on the passivation layer 252 corresponding to the image non-display area 320 of the lower substrate 240, A step may not occur in the image non-display area 320 in which the insulating layer 254a is formed, thereby preventing gap spots from occurring when the screen is driven.

Therefore, in the fourth exemplary embodiment of the present invention, the insulating film 254a is formed on the passivation layer 252 corresponding to the image non-display area 320 of the lower substrate 240 so as to have a predetermined pattern, thereby forming the upper substrate 280 and the lower substrate. The adhesion between the substrates 240 may be improved, and a step may not occur in the image non-display area 320 in which the insulating film 254a is formed, thereby preventing gap spots from occurring when the screen is driven.

However, when the liquid crystal panel having the structure described above is manufactured and tested for reliability, as shown in FIG. 13, an insulating film (or an insulating film) is formed on the passivation layer 252 corresponding to the image non-display area 320 of the lower substrate 240. Since the 254a is patterned to have a predetermined interval, a hot bar stain occurs at the bottom of the screen because the rubbing process is not properly performed at the portion where the insulating layer 254a pattern is not present during the rubbing process. .

Accordingly, in order to solve the above problem, in the fifth embodiment of the present invention, the insulating film 254a is spaced a predetermined distance on the passivation layer 252 corresponding to the corner region of the non-image display area 330 of the lower substrate 240. It is proposed to pattern to have.

14 is a plan view illustrating a liquid crystal panel according to a fifth exemplary embodiment of the present invention.

Referring to FIG. 14, in the fifth embodiment of the present invention, a passivation layer corresponding to the corner areas a, b, c, and d of the non-image display area 320 of the lower substrate 340 is formed. Except for patterning the insulating film 254a to have a predetermined interval on the 252 has the same structure as the fourth embodiment of the present invention.

In the fifth embodiment of the present invention, since the portion where the bonding force is weakest when the lower substrate 240 and the lower substrate 280 are bonded to each other corresponds to an edge region of the substrate, the image non-display area 320 of the lower substrate 240 is formed. The insulating layer 254a is patterned on the passivation layer 252 corresponding to the corner regions a, b, c, and d of the predetermined area.

As described above, in the fifth exemplary embodiment of the present invention, the insulating film 254a is formed on the passivation layer 252 corresponding to the corner areas a, b, c, and d of the non-image display area 320 of the lower substrate 240. Since the insulating film 254a is removed between the passivation film 252 and the seal contact film 256 when the lower substrate 240 and the upper substrate 280 are bonded to each other by having the predetermined interval, the passivation film 252 and the seal contact film ( 256) adhesion between the two is better.

In the fifth exemplary embodiment of the present invention, the insulating film 254a is formed on the passivation layer 252 corresponding to the corner areas a, b, c, and d of the non-image display area 320 of the lower substrate 240. The gap between the lower substrate 240 and the upper substrate 280 may be improved by increasing the area of the seal pattern 330 in contact with the seal contact layer 256.

In addition, in the fifth exemplary embodiment of the present invention, the insulating film 254a is predetermined on the passivation layer 252 corresponding to the corner areas a, b, c, and d of the non-image display area 320 of the lower substrate 240. Since the insulating film 254a is patterned at regular intervals by forming the film with a gap therebetween, no gap occurs in the image non-display area 320 where the insulating film 254a is formed. It can prevent.

In addition, in the fifth exemplary embodiment of the present invention, the insulating film 254a is predetermined on the passivation layer 252 corresponding to the corner areas a, b, c, and d of the non-image display area 320 of the lower substrate 240. Since it is formed to have a gap, it is possible to prevent hot bar stains from occurring at the bottom of the screen caused by the rubbing process not being properly performed on the portion without the insulating layer 254a pattern during the rubbing process. Can be.

15 is a plan view illustrating a liquid crystal panel according to a sixth exemplary embodiment of the present invention.

Referring to FIG. 15, in the sixth exemplary embodiment of the present invention, the insulating film 254a is formed on the passivation layer 252 corresponding to the long axis direction of the image non-display area 320 of the lower substrate 240. Except for patterning to have a predetermined interval, it has the same structure as the fourth embodiment of the present invention. Here, the cross-sectional view taken along the line VII-VII 'of FIG. 15 is the same as the cross-sectional view shown in FIG. 12.

In the sixth exemplary embodiment of the present invention, as shown in FIG. 13, the insulating film 254a is patterned on the passivation layer 252 corresponding to the long axis direction of the non-image display area 320 of the lower substrate 240 to have a predetermined interval. Hot bar stains can be prevented from occurring at the bottom of the screen.

In addition, in the sixth embodiment of the present invention, since the insulating film 254a is removed between the protective film 252 and the seal contact film 256 when the lower substrate 240 and the upper substrate 280 are bonded together, the protective film 252 and the seal are removed. The adhesion between the contact films 256 is improved.

In addition, in the sixth exemplary embodiment of the present invention, an area in which the seal pattern 330 contacts the seal contact layer 256 is increased to improve the bonding force between the lower substrate 240 and the upper substrate 280.

In addition, in the sixth exemplary embodiment of the present invention, since the insulating film 254a is patterned with a predetermined interval, a step is not generated in the image non-display area 320 where the insulating film 254a is formed, so that a gap is generated during screen driving. ) Can prevent staining.

Many details are set forth in the foregoing description but should be construed as illustrative of preferred embodiments rather than to limit the scope of the invention. Therefore, the invention should not be defined by the described embodiments, but should be defined by the claims and their equivalents.

200, 300: liquid crystal panel 210, 310: image display area
220, 320: Non-image display area 230, 330: Seal pattern
240: lower substrate 242: buffer film
244: gate insulating film 246: interlayer insulating film
248: metal film 252: protective film
254a: insulating film 256: seal contact film
280: upper substrate 290: liquid crystal layer

Claims (24)

An insulating substrate including an image display area and an image non-display area;
A plurality of thin film transistors formed in the image display area;
A protective film formed on an entire surface of the substrate including the thin film transistor; And
And an insulating film formed on the passivation layer and formed to have a predetermined pattern in the image non-display area. The method of claim 1,
And a seal contact film formed on said insulating film in said image non-display area. The method of claim 2,
And the seal contact layer is formed of an inorganic insulating material. The method of claim 1,
And the image non-display area is an entire edge of the insulating substrate. The method of claim 1,
And the insulating film is formed to have a predetermined pattern at an edge portion of the non-image display area. The method of claim 1,
And the insulating film has a predetermined pattern in a long axis direction of the non-image display area. The method of claim 1,
And the predetermined pattern is formed to have a predetermined interval. The method of claim 1,
And the predetermined pattern is formed in a bar shape. The method of claim 1,
And the passivation layer is formed of an inorganic insulating material. The method of claim 1,
And the insulating film is formed of an organic insulating material. An insulating substrate including an image display area and an image non-display area, a plurality of thin film transistors formed on the image display area, a protective film formed on the entire surface of the substrate including the thin film transistors, and the protective film. An array substrate including an insulating film formed to have a predetermined pattern;
A color filter substrate disposed corresponding to the array substrate and including a black matrix blocking light and an overcoat layer formed under the black matrix; And
And a liquid crystal layer interposed between the array substrate and the color filter substrate. The method of claim 11,
And a seal pattern formed on the color filter substrate at a position corresponding to the insulating layer of the array substrate. The method of claim 11,
The gap between the predetermined patterns is dependent on the viscosity of the seal pattern. The method of claim 11,
And a seal contact film formed on said insulating film in said non-image display area. The method of claim 14,
And the seal contact layer is formed of an inorganic insulating material. The method of claim 11,
And the image non-display area is an entire edge of the insulating substrate. The method of claim 11,
And the insulating film is formed to have a predetermined pattern at an edge portion of the non-image display area. The method of claim 11,
And the insulating film is formed to have a predetermined pattern in a long axis direction of the non-image display area. The method of claim 11,
The predetermined pattern is formed to have a predetermined interval, the liquid crystal panel. The method of claim 11,
The predetermined pattern is formed in the shape of a bar liquid crystal panel. The method of claim 11,
The protective layer is formed of an inorganic insulating material. The method of claim 11,
The insulating film is a liquid crystal panel, characterized in that formed of an organic insulating material. The method of claim 11,
And a color filter formed between the black matrix and the overcoat layer. A liquid crystal panel displaying an image and comprising any one of claims 11 to 23; And
And a backlight unit for providing light to the liquid crystal panel.
KR1020100090783A 2010-09-15 2010-09-15 Array panel, liquid crystal panel comprising the same and liquid crystal display device comprising the same KR20120028758A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020100090783A KR20120028758A (en) 2010-09-15 2010-09-15 Array panel, liquid crystal panel comprising the same and liquid crystal display device comprising the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020100090783A KR20120028758A (en) 2010-09-15 2010-09-15 Array panel, liquid crystal panel comprising the same and liquid crystal display device comprising the same

Publications (1)

Publication Number Publication Date
KR20120028758A true KR20120028758A (en) 2012-03-23

Family

ID=46133508

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020100090783A KR20120028758A (en) 2010-09-15 2010-09-15 Array panel, liquid crystal panel comprising the same and liquid crystal display device comprising the same

Country Status (1)

Country Link
KR (1) KR20120028758A (en)

Similar Documents

Publication Publication Date Title
CN101000424B (en) Color filter substrate and liquid crystal display panel comprising the same
KR102609077B1 (en) Liquid crystal display device
JP2012177895A (en) Liquid crystal display device
KR20130034168A (en) Liquid crystal display device
KR101728488B1 (en) In-plane switching mode Liquid crystal display device
KR20100068035A (en) Liquid crystal display
KR20080049346A (en) Liquid crystal display panel
KR101879300B1 (en) Liquid crystal display device
KR20120011711A (en) Substrate for liquid crystal display device
JP2005128424A (en) Display apparatus
KR20150001468A (en) In-plane switching mode liquid crystal display device
KR20180126732A (en) Manufacturing method of multi-panel and display device
KR20120028758A (en) Array panel, liquid crystal panel comprising the same and liquid crystal display device comprising the same
KR20080056830A (en) Liquid crystal display device and method for repairing the same
AU2010250584B2 (en) Liquid crystal display device and method for manufacturing transparent electrode
KR101888446B1 (en) Liquid crystal display device and method of fabricating the same
KR101912937B1 (en) Hybrid Mode Horizontal Electric Field Type Liquid Crystal Display Device
KR20070051415A (en) Liquid crystal display
KR20070071796A (en) Liquid crystal display device and method for repair the same
KR100853779B1 (en) Liquid Crystal Display device and Method for Manufacturing the same
KR100652059B1 (en) Liquid Crystal Display Device
KR101023718B1 (en) Liquid Crystal Display Device and method for fabricating the same
KR20080079889A (en) Image display device and manufacture method thereof
KR20060001248A (en) Liquid crystal display device
KR101728352B1 (en) Liquid crystal display device

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E601 Decision to refuse application