KR20080001536A - Liquid crystal panel and method for manufacturing the same - Google Patents

Abstract

An LCD(Liquid Crystal Display) panel and a method for manufacturing the same are provided to prevent the generation of a baduk-piece-shaped spot, and shortening a tact time by hardening sealant without using a reverser after adhere a TFT(Thin Film Transistor) array substrate to a color filter substrate. An LCD panel comprises an array substrate(100), a color filter substrate(200), and a liquid crystal layer(300). The array substrate is composed of a display unit and a non-display unit and forms a seal line on the non-display unit. The display unit is divided into a switching area, a pixel area, and a capacity area. The non-display area is a pad area. The color filter substrate is divided into a black matrix area(220a,220b) and a color filter area, forms a hole on the black matrix corresponding to the non-display unit, and hardens a seal line by UV(Ultra Violet) light passing the hole. The liquid crystal layer is formed between the array substrate and the color filter substrate.

Description

Liquid crystal display panel and its manufacturing method {LIQUID CRYSTAL PANEL AND METHOD FOR MANUFACTURING THE SAME}

1 is a perspective view schematically illustrating a configuration of a general liquid crystal display panel.

2 is a vertical cross-sectional view of a general liquid crystal display panel.

3A and 3B illustrate a bonding process of a liquid crystal display panel according to the related art.

4 is a perspective view schematically illustrating a configuration of a liquid crystal display panel according to an exemplary embodiment of the present invention.

5A is a vertical cross-sectional view of a liquid crystal display panel according to an exemplary embodiment of the present invention, and FIG. 5B is a plan view.

6A to 6B are diagrams illustrating a bonding process of a liquid crystal display panel according to an exemplary embodiment of the present invention.

7A to 7D are views illustrating a manufacturing process of a color filter substrate according to an exemplary embodiment of the present invention.

<Explanation of symbols on main parts of the drawings>

100: TFT array substrate 200: color filter substrate

300: liquid crystal layer 210: glass substrate

220a: display part black matrix 220b: non-display part black matrix

230: color filter 240: overcoat

250a, 250b: Spacer 260: Sealant

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid crystal display device, and more particularly, to a liquid crystal display panel and a method of manufacturing the same, which are formed by bonding a thin film frame nistor array array and a color filter substrate together.

In general, a liquid crystal display is an apparatus that expresses an image by using optical anisotropy and birefringence characteristics of liquid crystal molecules. In the liquid crystal display, two substrates on which the field generating electrodes are formed are disposed so that the surfaces on which the two electrodes are formed face each other, a liquid crystal material is injected or dropped between the two substrates, and then a voltage is applied to the two electrodes. By changing the arrangement of the liquid crystal molecules by the generated electric field, and by controlling the amount of light transmitted through the transparent insulating substrate, the desired image is expressed.

As such a liquid crystal display, a thin film transistor liquid crystal display (TFT LCD) using a thin film transistor (TFT) as a switching element is mainly used. The TFT LCD transmits the red (R), green (G), and blue (B) color filter layers disposed 1: 1 on each liquid crystal pixel after the backlight having white light passes through the liquid crystal pixel and the light transmittance is adjusted. The color mixture of the TFT-LCD is produced by adding mixed color of the emitted light.

FIG. 1 is a view schematically showing a configuration of a general liquid crystal display panel, and FIG. 2 is a vertical cross-sectional view of the portion II ′ of FIG. 1.

1 and 2, the liquid crystal display panel provided in the liquid crystal display device includes an array substrate 10 and a color filter substrate 20 bonded to each other with a predetermined space, and the array substrate 10 and the color filter substrate. It may be composed of a liquid crystal layer 30 formed between the (20). In this case, the array substrate 10 is a thin film transistor (TFT) array substrate which is divided into a TFT region TFT, a pixel region Pixel, a charging region Cst, and a gate / data pad region Pad, which are switching regions.

The thin film transistor array substrate 10 includes a transparent glass substrate 11, gate layers 12a and 12b, an interlayer insulating layer 13, an active layer 14, an ohmic contact layer 15a and 15b, and a data layer 16a and 16b. ), The passivation layer 17, the pixel electrode 18, and the like. The gate layers 12a and 12b may be the display gate layer 12a and the non-display gate layer 12b.

In addition, the color filter substrate 20 includes a transparent glass substrate 21, a black matrix 22, a color filter 23, and a planarization film 24, and additionally includes spacers 25a and 25b and a sealing material ( Sealant 26 may be formed on the color filter substrate 20.

In the liquid crystal display, the liquid crystal layer 30 formed between the thin film transistor array substrate 10 and the color filter substrate 20 is aligned by an electric field between the pixel electrode 18 and a common electrode (not shown). According to the degree of alignment of the liquid crystal layer 30, the desired image may be expressed by adjusting the amount of light passing through the liquid crystal layer 30.

Referring to FIG. 2, a non-display gate layer 12b is formed outside the thin film transistor array substrate 11, and the non-display gate layer 12b may be a gate metal. In addition, a non-display data layer (not shown) is formed outside the thin film transistor array substrate 11, and the non-display data layer may be a data metal. In this case, by forming at least one hole on the gate metal or the data metal, the array substrate 10 and the color filter substrate 20 are bonded together, and then ultraviolet light is exposed through the opening. The sealing member 26 can be hardened by performing the following.

On the other hand, when the two substrates are bonded to each other to produce a liquid crystal panel, bad shape of the baduk may occur. Here, the bad shape of the goggle shape refers to a phenomenon in which the liquid crystal 30 is abnormally driven due to the influence of direct current (DC) and is abnormally driven so that a portion where the liquid crystal 30 is dropped appears white or black like a goggle shape. .

3A and 3B illustrate a bonding process of a liquid crystal display panel according to the related art.

In order to solve the above-mentioned defects in the shape of the goggles, as shown in FIG. 3A, the liquid crystal 30 is dropped on the thin film transistor array substrate 10, and the sealing material 26 is coated on the color filter substrate 20. After that, the two substrates 10 and 20 are bonded together. Next, as shown in FIG. 3B, a thin film transistor array substrate 10 is turned upside down using an inverter (not shown), such as a robot, and a UV exposure method is adopted. At this time, the sealing material 26 is cured by performing UV curing through an opening (reference numeral A) formed in the seal line on the gate metal 12b or the data metal.

However, in the case of using an inverter to prevent the occurrence of a checkerboard-shaped stain, since the array substrate is inverted before the sealing material is hardened, the bonding of the two substrates may be distorted in this inversion step, and thus, after fabrication of the liquid crystal display module There is a problem that a light leakage defect may occur due to a decrease in contrast ratio (CR) or bonding.

SUMMARY OF THE INVENTION An object of the present invention for solving the above problems is to provide a liquid crystal display panel and a method of manufacturing the same, which can shorten the process time by bonding the array substrate and the color filter substrate together and curing the sealing material without using an inverter. It is for.

In addition, another object of the present invention, by bonding the array substrate and the color filter substrate and then curing the sealing material without using an inverter, the liquid crystal display that can prevent the reduction of the contrast ratio (CR), and prevent the light leakage defects It is to provide a panel and a method of manufacturing the same.

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

As a means for achieving the above object, the liquid crystal display panel according to the present invention comprises a display portion divided into a switching region, a pixel region and a capacitor region, and a non-display portion, which is a pad region, and a sealing line (Seal) on the non-display portion. an array substrate on which lines are formed; A color filter substrate which is divided into a black matrix region and a color filter region, and has an opening formed on the black matrix corresponding to the non-display portion, and cures the bonding line by UV light passing through the opening; And a liquid crystal layer formed between the array substrate and the color filter substrate.

The array substrate may be a lower substrate, the color filter substrate may be bonded to an upper substrate, and then may be inverted-cured.

The color filter substrate may include a black matrix including a display black matrix formed to correspond to the display of the array substrate, and a non-display black matrix formed to correspond to the non-display of the array substrate; And a color filter formed between the display unit black matrix to implement color on the pixel area.

Here, the array substrate and the color filter substrate may be bonded to each other, and may further include a sealant which is completely cured by UV light passing through an opening on the non-display black matrix.

Here, at least one opening may be formed on the non-display black matrix within the width range of the sealing material.

On the other hand, as another means for achieving the above object, a method of manufacturing a liquid crystal display panel according to the present invention, a) preparing an array substrate having a bonding line formed on the non-display portion; b) preparing a color filter substrate having an opening formed on the non-display black matrix corresponding to the bonding line; c) dropping liquid crystal on the array substrate; d) applying a sealing material on the non-display black matrix of the color filter substrate; e) bonding the array substrate and the color filter substrate; And f) performing UV exposure through an opening formed in the non-display black matrix of the color filter substrate to cure the sealing material.

Here, the step e) is characterized in that the two substrates are bonded by using the array substrate as the lower substrate and the color filter substrate as the upper substrate.

Here, at least one opening of the step b) is formed on the non-display black matrix within the width range of the sealing material.

Here, the opening of step b) is formed at the same time when the pixel region is formed on the color filter substrate.

Here, the sealing material of step d) is characterized in that the coating on the non-display black matrix.

Here, in the step f) is characterized in that the sealing member is completely cured.

Advantages and features of the present invention and methods for achieving them will be apparent with reference to the embodiments described below in detail with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be embodied in various forms, and the present embodiments are merely provided to make the disclosure of the present invention complete and the general knowledge in the art to which the present invention belongs. It is provided to fully inform the person having the scope of the invention, which is defined only by the scope of the claims. Like reference numerals refer to like elements throughout.

Hereinafter, a liquid crystal display panel and a manufacturing method thereof according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

4 is a perspective view schematically illustrating a configuration of a liquid crystal display panel according to an exemplary embodiment of the present invention, and FIG. 5A is a vertical cross-sectional view of part II-II ′ of FIG. 4.

4 and 5A, the liquid crystal display panel provided in the liquid crystal display according to the exemplary embodiment of the present invention may include a thin film transistor array substrate 100, a color filter substrate 200, and a liquid crystal layer 300. As shown in FIG. 5A, the thin film transistor array substrate 100 and the color filter substrate 200 are bonded by the sealing material 260.

The thin film transistor array substrate 100 includes a display unit divided into a switching region, a pixel region, and a capacitor region, and a non-display unit, which is a pad region, and a sealing line is formed on the non-display unit. The bonding line is formed between the gate pad or the data pad and the display unit.

In addition, the thin film transistor array substrate 100 may include a transparent glass substrate 110, gate layers 120a and 120b, an interlayer insulating layer 130, an active layer 140, an ohmic contact layer 150a and 150b, and a data layer ( 160a, 160b, the passivation layer 170, the pixel electrode 180, and the like.

The color filter substrate 200 is divided into a black matrix region and a color filter region, and an opening portion is formed on the non-display portion black matrix 220b corresponding to the bonding line.

In addition, the color filter substrate 200 may include a transparent glass substrate 210, a black matrix 220, a color filter 230, and a planarization layer 240, and additionally include spacers 250a and 250b and a sealing material. A 260 may be formed on the color filter substrate 200.

Here, the openings may be formed at the same time when the pixel region is formed on the color filter substrate 200. In addition, at least one opening may be formed on the non-display black matrix 220b within a width range of the sealing material 260.

In addition, the color filter substrate 200 may include a display part black matrix 220a formed to correspond to the display part of the thin film transistor array substrate 100 and a non-display part formed to correspond to the non-display part of the thin film transistor array substrate 100. And black filters 220a and 220b formed of a black matrix 220b and a color filter 230 formed between the display unit black matrix 220a to implement colors on the pixel area.

The liquid crystal layer 300 is formed by dropping a liquid crystal on the thin film transistor array substrate 100.

The sealing material 260 bonds the thin film transistor array substrate 100 and the color filter substrate 200 to be completely cured by UV light that subsequently passes through an opening on the non-display black matrix 220b. do. In this case, the sealing material 260 is applied on the non-display black matrix 22b, and the sealing material 260 may be implemented to include glass fiber (270) for passing the UV light. have.

Accordingly, the thin film transistor array substrate 100 may be a lower substrate, and the color filter substrate 200 may be an upper substrate, and then the two substrates 100 and 200 may be bonded together, and then may be inverted and hardened. That is, it hardens without using an inverter. According to an embodiment of the present invention, the thin film transistor array substrate and the color filter substrate are bonded together and cured without using an inverter, thereby shortening the process time and preventing a decrease in the contrast ratio (CR). In addition, it is possible to prevent the light leakage failure.

On the other hand, the liquid crystal display panel for a liquid crystal display device according to an embodiment of the present invention is a step of manufacturing a thin film transistor array substrate 100 in which a pixel electrode and a thin film transistor which is a switching element is formed for each pixel, the thin film transistor array substrate 100 ) And a color filter substrate 200 in which red, green, and blue colors are formed corresponding to each pixel, and a liquid crystal 300 on the array substrate 100 manufactured by the above two processes. ) Is added, and then a series of processes of adhering through the seal member 260 are performed.

In general, the liquid crystal display panel manufacturing process is called a cell process, and the cell process aligns the liquid crystal 300 in one direction to the array substrate 100 on which the thin film transistors are arranged and the color filter substrate 200 on which the color filters are formed. In order to maintain a constant gap by bonding the two substrates 100 and 200 together with each other, an alignment process may be divided into a cell gap forming process, a cell cutting process, and a liquid crystal dropping process.

5B is a plan view of a liquid crystal display panel according to an exemplary embodiment of the present invention.

5A and 5B, the manufacturing process of the liquid crystal panel according to the exemplary embodiment of the present invention, that is, the manufacturing process of the liquid crystal cell will be described in detail.

First, the first step of the liquid crystal cell process is an alignment layer forming process in which red, green, and blue color filters are formed corresponding to the thin film transistor array substrate 100 in which the thin film transistors are arranged for each pixel and the pixels of the array substrate 100. The alignment layer (not shown) is formed by coating polyimide, which is a polymer material, on the color filter substrate 200.

In this case, the polyimide alignment layer is printed to have a uniform pattern on a front surface of the thin film transistor array substrate 100 and the color filter substrate 200 by a roll coating method. Thereafter, the two substrates 100 and 200 on which the alignment layer is printed are preliminarily dried and baked to form a cured alignment layer.

Next, a rubbing process is performed on the upper and lower substrates 100 and 200 on which the cured alignment layer is formed. The cured alignment layer surface is rubbed with a rubbing cloth at a uniform pressure and speed to align the polymer chains on the alignment layer surface in a predetermined direction. The rubbing is a main process of determining the initial alignment direction of the liquid crystal, and thus, the driving and normal display characteristics of the normal liquid crystal are achieved.

Next, the rubbed two substrates 100 and 200 undergo a seal pattern formation, silver (Ag) application, and a spacer spreading process. In this case, the thin film transistor array substrate 100 which is a lower substrate mainly performs a seal pattern forming process and a silver coating process, and the color filter substrate 200 which is an upper substrate performs a spacer spreading process.

In the liquid crystal display panel, the seal pattern plays a role of forming a gap for dropping the liquid crystal and keeping the dropped liquid crystal from leaking. In this case, the seal pattern is a process of forming the seal member 260, which is a thermosetting or ultraviolet curable resin, in a predetermined pattern on the edge of the substrate in a predetermined pattern. It forms on a board | substrate by.

Next, a silver coating process is performed on the array substrate in which the said seal pattern was formed. At this time, the silver (Ag) coating is to apply a certain amount of silver (Ag) paste at a predetermined position on the array substrate 100 for the conduction of the upper substrate 100 and the lower substrate 200.

Next, during the process of forming the seal pattern and the silver coating process on the array substrate 100 described above, the color filter substrate 200 has a ball spacer at a uniform density on the entire surface of the substrate to form a cell gap of the active region. Proceed with spacer scattering process. There are a dry method and a wet method in such a spacer spread, and a dry method in which the spacers are dispersed without agglomeration of spacers by charging with + and-is mainly used. In addition, when manufacturing a color filter substrate to maintain a cell gap, a patterned spacer having a predetermined interval may be formed on the color filter substrate 200. Therefore, in the case of the color filter substrate 200 having the patterned spacer, the spacer spreading process may be omitted.

Next, when the sealing pattern is formed on the thin film transistor array substrate 100, the silver coating process and the spacer spreading process are completed on the color filter substrate 200, the bonding process is performed.

In order to bond the thin film transistor array substrate 100 and the color filter substrate 200, the color filter pattern of the upper substrate and the pixels of the lower substrate must be exactly matched. In this case, the degree of adhesion alignment is determined by a margin given at the time of designing each of the substrates 100 and 200, and the adhesion margin is a black matrix and the array substrate 100 on the color filter substrate 200. This is attributable to the degree of overlap of the pixel electrodes on the C), and usually requires a precision of several micrometers. When the two substrates 100 and 200 are out of the bonding error range, light leaks out, so that the desired image quality characteristics cannot be obtained when the liquid crystal cell is driven.

Therefore, after bonding the upper and lower substrates (100, 200) are bonded to form a disc panel, and then apply a uniform pressure to the disc panel, at the same time by applying heat to the seal pattern or by irradiating UV constant cell gap To completely cure the seal pattern. At this time, when the sealing material 260 on which the sealing pattern is formed is UV curable, curing is performed by irradiating UV to the sealing material. In addition, when the sealing material 260 is thermosetting, it may be cured by applying heat.

Next, a cell cutting process of cutting the disc panel is performed. It is a process of cutting the original panel manufactured through the above-mentioned step into a unit cell. The cell cutting process is a scribe process that forms a cutting line on the surface of the disc panel with a cutting wheel made of diamond or cemented carbide, which is harder than a glass substrate, and a break process that breaks apart by applying a force to the cutting line. Is done.

Next, the cutting process is performed to perform a liquid crystal injection process on the liquid crystal display panel cut into unit cells. The liquid crystal injection process is a process of vacuuming the inside of the liquid crystal display panel having a cell gap of several μm, and then injecting the liquid crystal into the inside of the liquid crystal display panel using a capillary phenomenon and an atmospheric pressure difference.

Next, a grinding process of removing the pad portion shorting bar of the liquid crystal display panel and an inspection process of determining whether there is a defect are performed to complete the liquid crystal display panel.

On the other hand, in the case of a liquid crystal drop vacuum bonding apparatus using a UV curable seal material, the array substrate 100 and the color filter substrate 200 on which the seal pattern is formed are opposed to each other, and then the liquid crystal 300 is bonded before the two substrates are bonded. In a vacuum atmosphere, an appropriate amount of the substrate is dispensed to one of the array substrate 100 and the color filter substrate 200.

Subsequently, the two substrates 100 and 200 are bonded together to be vacuum-bonded, and at the same time, the seal pattern is irradiated with UV and cured to complete the original liquid crystal display panel, and the separated liquid crystal display panel is cut by cutting the finished liquid crystal display panel. To complete. As described above, since the liquid crystal display panel manufactured by using the liquid crystal drop vacuum bonding apparatus does not need an injection hole for liquid crystal injection, the seal pattern may be seamlessly formed without the injection hole.

5B is a plan view of a liquid crystal display panel according to an exemplary embodiment of the present invention.

5A and 5B, a liquid crystal display panel for a liquid crystal display according to an exemplary embodiment of the present invention includes a plurality of gate pads 125 and data pads 165 connecting external circuits to an outer non-display area NA. ) Is formed, and is connected to each of the gate pads 125 and extends in the horizontal direction to the display area area AA, and the display area area AA is connected to each of the data pads 165. A thin film transistor TFT is formed at a point where the data line 160 extending in the vertical direction and the two wires 120 and 160 intersect, respectively, and a thin film transistor having a plurality of pixels that can be driven. Array substrate 100 is included.

In addition, the liquid crystal display panel is opposite to the thin film transistor array substrate 100, and corresponds to each pixel, and the thin, green, and blue color filter patterns sequentially and repeatedly provided between the thin film transistors and the thin film transistors are disposed between the patterns and the patterns. A non-display black matrix configured to surround the black matrix 220a configured to correspond to the gate line 120a and the data line 160a of the array substrate 100 and the outside of the display area area AA formed of the pixels. And a color filter substrate 200 having 220b).

In addition, the liquid crystal display panel is positioned between the liquid crystal layer 300 positioned between the two substrates 100 and 200 and the non-display area NA of the corresponding edge between the two substrates 100 and 200. It may include a sealing material 260 that is a sealing pattern is formed.

As a result, the sealing material 260 is cured by performing UV exposure through an opening formed on the non-display black matrix 220b. That is, the seal pattern formed of the UV curable seal material 260 is cured by irradiating UV light having an appropriate wavelength through the opening for a suitable time after the bonding of the array substrate 100 and the color filter substrate 200.

6A to 6B are diagrams illustrating a bonding process of a liquid crystal display panel according to an exemplary embodiment of the present invention.

First, referring to FIG. 6A, a color filter in which openings are formed on a thin film transistor array substrate 100 having a bonding line formed on a non-display portion and a non-display portion black matrix corresponding to the bonding line. After preparing the substrate 200, the liquid crystal is dropped on the thin film transistor array substrate 100, and after the sealing material 260 is coated on the non-display black matrix 220b of the color filter substrate 200, The two substrates 100 and 200 are bonded to each other.

Next, referring to FIG. 6B, after the array substrate 100 and the color filter substrate 200 are bonded together, UV exposure is performed through an opening formed in the non-display black matrix 220b of the color filter substrate. The sealing material is cured.

In this case, the thin film transistor array substrate 100 is used as the lower substrate and the color filter substrate 200 is used as the upper substrate, and the two substrates 100 and 200 are bonded together, and then inverted-cured without using an inverter. .

In addition, at least one opening may be formed on the non-display black matrix 220b within a width range of the sealing material, and may be simultaneously formed when the pixel region is formed on the color filter substrate 200. have.

7A to 7D are views illustrating a manufacturing process of a color filter substrate according to an exemplary embodiment of the present invention.

First, referring to FIG. 7A, a black matrix layer 220 -D is deposited on a transparent insulating substrate 210.

Subsequently, referring to FIG. 7B, the display unit black matrix 220a is formed using a mask to define a pixel area, and at the same time, the non-display unit black matrix 220b is formed, and the reference numerals are displayed on the non-display unit black matrix 220b. The opening shown in B is formed.

Specifically, the first layer produced in the manufacture of the color filter substrate 200 according to the embodiment of the present invention is the black matrices 220a and 220b used as the light shielding layer. Among the black matrices 220a and 220b, the display part black matrix 220a is provided near the boundary of each pixel to separate the RGB of the color filter of the RGB unit pixel, and at the same time, liquid crystal in a region that is not controlled by the pixel electrode of the TFT array substrate. It blocks the light passing through the cell and improves the contrast ratio (CR) of the liquid crystal display. In addition, the non-display black matrix 220b among the black matrices 220a and 220b is formed at the edge of the liquid crystal display panel.

Next, referring to FIG. 7C, after forming the black matrices 220a and 220b, an RGB color filter pattern for implementing colors is formed.

At this time, the difference from the above-described method of forming the black matrix (220a, 220b) is to use the RGB color photosensitive agent containing the pigment (pigment) as a photosensitive agent, respectively, the order of forming the RGB color filter pattern of the color filter substrate 200 Not.

In this case, the application of the RGB color photosensitive agent may be a method using a spin method or a slit nozzle, such as a photolithography process. The spin coating method is most commonly used because the color photoresist consumes a lot, but the thickness uniformity is excellent. When the size of the glass substrate becomes large enough to not spin coating, another method such as a slit coating method may be used.

In general, since the RGB color photosensitive agent uses a negative photosensitive agent, an unexposed part is removed with a developer, and after development, a post bake process is performed to fix the color filter pattern.

Next, referring to FIG. 7D, an overcoat is formed on the surface of the RGB color filter 230 for elution of the organic material toward the liquid crystal cell to be subsequently formed in the RGB pattern and good step coverage in forming the pixel electrode. The planarization layer 240 may be formed of an acrylic resin or the like by a coating method. In this case, in order to reduce the cost of manufacturing the color filter, the RGB color filter pattern may be formed at a good taper angle to omit the planarization film forming process.

Subsequently, by applying a photosensitive agent for forming a column spacer on the planarization layer 240 and exposing the photosensitive agent, the column spacers 250a and 250b as shown in FIG. 5A are formed.

The color filter formed as described above can be easily applied not only to a liquid crystal display panel of twisted nematic (TN) mode but also to a liquid crystal display panel of in-plane switching (IPS) mode and vertical alignment (VA) mode. Subsequently, the color filter substrate 200 manufactured as described above is introduced into a liquid crystal cell process as a thin film transistor array substrate manufactured separately through an inspection process.

In the liquid crystal display panel according to the exemplary embodiment of the present invention, after manufacturing the color filter substrate 200 as illustrated in FIGS. 7A to 7D, the liquid crystal 300 is dropped, and then the thin film transistor array substrate 100 is disposed. And can be formed by fully curing the seal material.

Although embodiments of the present invention have been described above with reference to the accompanying drawings, those skilled in the art to which the present invention pertains may implement the present invention in other specific forms without changing the technical spirit or essential features thereof. I can understand that. Therefore, the embodiments described above are to be understood in all respects as illustrative and not restrictive.

According to the present invention, it is possible to prevent the occurrence of the goggle-shaped irregularity, and also by bonding the thin film transistor array substrate and the color filter substrate, and curing the sealing material without using an inverter, the process time (Tact time) It can be shortened.

In addition, according to the present invention, by bonding the array substrate and the color filter substrate together and curing the sealing material without using an inverter, it is possible to prevent a decrease in the contrast ratio (CR) and to prevent the defect of the bonding light leakage.

Claims (15)

An array substrate including a display unit divided into a switching region, a pixel region, and a capacitor region, and a non-display unit, which is a pad region, wherein a seal line is formed on the non-display unit; A color filter substrate which is divided into a black matrix region and a color filter region, and has an opening formed on the black matrix corresponding to the non-display portion, and cures the bonding line by UV light passing through the opening; And Liquid crystal layer formed between the array substrate and the color filter substrate Liquid crystal display panel comprising a. The method of claim 1, And attaching the array substrate as a lower substrate and attaching the color filter substrate as an upper substrate, followed by inversion-free curing. The method of claim 1, wherein the color filter substrate, A black matrix including a display unit black matrix formed to correspond to the display unit of the array substrate, and a non-display unit black matrix formed to correspond to the non-display unit of the array substrate; And A color filter formed between the display unit and the black matrix to implement color on the pixel area Liquid crystal display panel comprising a. The method of claim 3, And the openings are simultaneously formed when the pixel region is formed on the color filter substrate. The method of claim 1, And a sealant which bonds the array substrate and the color filter substrate and is completely cured by UV light passing through an opening on the non-display black matrix. The method of claim 5, And the sealing material is coated on the non-display black matrix. The method of claim 5, The sealing material includes a glass fiber (Glass Fiber) for passing the UV light. The method of claim 5, And at least one opening is formed on the non-display portion black matrix within a width range of the sealing material. The method of claim 1, The liquid crystal layer is formed by dropping a liquid crystal on the array substrate. a) preparing an array substrate having a seal line formed on the non-display portion; b) preparing a color filter substrate having an opening formed on a non-display black matrix corresponding to the bonding line; c) dropping liquid crystal on the array substrate; d) applying a sealant on the non-display black matrix of the color filter substrate; e) bonding the array substrate and the color filter substrate; And f) curing the sealing material by performing UV exposure through an opening formed in the non-display black matrix of the color filter substrate. Method of manufacturing a liquid crystal display panel comprising a. The method of claim 10, In the step e), the array substrate is a lower substrate, and the color filter substrate is an upper substrate, and the two substrates are bonded together. The method of claim 10, And at least one opening of step b) is formed on the non-display black matrix within the width range of the sealing material. The method of claim 10, And the opening of step b) is simultaneously formed when the pixel region is formed on the color filter substrate. The method of claim 10, The sealing material of step d) is coated on the non-display black matrix, the manufacturing method of the liquid crystal display panel. The method of claim 10, The method of manufacturing a liquid crystal display panel, characterized in that the sealing member is completely cured in step f).

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