KR20140140209A - Bonded substrate for display panel - Google Patents

Abstract

A bonded substrate for a display panel capable of preventing a sealant spread defect, improving the bonding force of a bonded substrate, and manufacturing a display panel having a uniform cut surface comprises a first mother substrate which has panel regions arranged to touch each other in one of a first and a second direction which are orthogonal to each other; a second mother substrate which includes a block matrix which defines the panel regions, respectively; a sealant guide member which is formed on the first mother substrate or the second mother substrate to be shared among the panel regions which touche each other; and a sealant which surrounds the panel regions, respectively and has a sealant guide member to bond the first and the second mother substrate. The sealant guide member includes a sealant filling region filled with the sealant and a sealant non-filling region not filled with the sealant.

Description

[0001] BONDED SUBSTRATE FOR DISPLAY PANEL [0002]

The present invention relates to a bonded substrate for a display panel.

2. Description of the Related Art In recent years, the importance of flat panel display devices has been increasing with the development of multimedia. In response to this, a liquid crystal display device, a plasma display device, an organic light emitting display device, and an electrophoretic display device have been commercialized. Such flat panel display devices are manufactured through various manufacturing processes.

For example, the liquid crystal display device can be manufactured through a manufacturing process such as a cell process, a polarizer attaching process, a circuit attaching process, a cell inspecting process, a backlight assembling process, and a case assembling process. The cell process includes a thin film transistor array substrate manufacturing process, a color filter array substrate process, a laminating process, a cutting process, and an inspection process.

The thin film transistor array substrate manufacturing process and the color filter array substrate process are each performed on the first and second mother substrate sections partitioned into a plurality of panel regions for shortening the process time and improving the production yield.

The laminating process in the cell process includes a sealant forming step of forming a sealant on the first or second mother substrate so as to surround each of the plurality of panel areas, a liquid crystal dropping step of dropping liquid crystal in each of the plurality of panel areas A curing step of curing the sealant after the first and second mother substrate plates are adhered to each other, and a cutting step of cutting the first and second mother substrate assembled into a plurality of panel regions into a plurality of display panels .

On the other hand, Japanese Laid-Open Patent Publication No. 10-2012-0076708 (hereinafter referred to as "prior art document") discloses a mother board for a display panel and a method for manufacturing a display panel.

The prior art document discloses that the sealants for partitioning the unit substrates disposed adjacent to each other are formed to be in contact with each other and the shielding member for shielding the hardened light along the line along which the substrate is to be divided for separation into the unit substrates is formed, The entire size of the mother board for the display panel can be reduced or a larger number of unit substrates can be manufactured on the mother board for the display panel.

However, in the above-described prior art documents, sealant spreading defects may occur due to spreading of the sealant when the first and second mother substrate are attached together, and the sealant portions corresponding to the lines to be cut are not cured The bonding force (or adhesive force) of the bonded substrate can be lowered.

Disclosure of Invention Technical Problem [8] Accordingly, it is an object of the present invention to provide a bonded substrate substrate for a display panel, do.

Other features and advantages of the invention will be set forth in the description which follows, or may be obvious to those skilled in the art from the description and the claims.

According to another aspect of the present invention, there is provided a cohesive substrate for a display panel, including: a first mother substrate having a plurality of panel regions disposed in contact with each other along at least one of a first direction and a second direction perpendicular to each other; A second motherboard including a black mattress defining each of the plurality of panel areas; A sealant guide member formed on the first mother substrate or the second mother substrate so as to be shared between the adjacent panel regions; And a sealant that is formed on the sealant guide member and surrounds the plurality of panel regions to adhere the first and second mother substrate to each other, wherein the sealant guide member includes a sealant filling region in which the sealant is filled, And a sealant unfilled region in which the sealant is not filled.

And the sealant unfilled region is superimposed on a line to be cut for separating the panel region into a display panel.

Wherein the sealant guide member comprises: an outer dam which blocks the sealant from spreading inside the panel area; An inner dam spaced apart from the outer dam to provide the sealant unfilled area; And an intermediate dam provided between the outer dam and the inner dam to seal the sealant.

The sealant is filled in the sealant filling region provided between the inner dam and the intermediate dam to adhere the first and second mother boards to each other.

Wherein the outer dam, the inner dam and the intermediate dam each maintain a cell gap between the first and second mosquito plates which are attached to each other.

And the intermediate dam is formed at a lower height than the internal dam.

And the sealant guide member is formed to surround each of the plurality of panel regions.

A color filter is formed in the light transmitting region defined by the black mattress on the second mother substrate and a column spacer is formed for maintaining a cell gap between the first mother substrate and the second mother substrate, And the sealant guide member is protruded from the second mother substrate to the first mother substrate by a laminated structure of the black mattress, the color filter, and the column spacer.

And a liquid crystal layer formed between the first and second mother substrate.

According to the means for solving the above-mentioned problems, the adhesion substrate for a display panel according to the present invention has the following effects.

First, sealant spreading failure can be prevented, and the width of the bezel can be prevented from increasing due to spreading of the sealant.

Second, the cutting process of separating the bonded substrate to the display panel along the line along which the substrate is to be cut can be facilitated, and the cut surface of the display panel can be made even.

Thirdly, since the panel regions are arranged to be in contact with each other and the sealant forming region is reduced, it is possible to reduce the overall size of the mother substrate or to increase the number of panel regions formed on the mother substrate.

1 is a plan view for explaining a bonded substrate for a display panel according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view illustrating one pixel structure formed in the panel region shown in FIG. 1. Referring to FIG.
3 is a cross-sectional view illustrating an embodiment of the seal guide member shown in FIG.
4 is a cross-sectional view illustrating a sealant applied to the sealant guide member shown in Fig.
5 is a cross-sectional view for explaining the cross-sectional structure of the line I-I 'shown in FIG. 1 and the cutting of the adhesion substrate.
FIG. 6 is a view for explaining various shapes of a syringe nozzle for forming the sealant shown in FIG.
7 is a view for explaining a modified example of a bonded substrate for a display panel according to an embodiment of the present invention.
8 is a cross-sectional view for explaining another embodiment of the seal guide member shown in Fig.

The meaning of the terms described herein should be understood as follows.

The word " first, "" second," and the like, used to distinguish one element from another, are to be understood to include plural representations unless the context clearly dictates otherwise. The scope of the right should not be limited by these terms.

It should be understood that the terms "comprises" or "having" does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

It should be understood that the term "at least one" includes all possible combinations from one or more related items. For example, the meaning of "at least one of the first item, the second item and the third item" means not only the first item, the second item or the third item, but also the second item and the second item among the first item, Means any combination of items that can be presented from more than one.

The term "on" means not only when a configuration is formed directly on top of another configuration, but also when a third configuration is interposed between these configurations.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of a method for manufacturing a bonded substrate and a display panel according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a plan view for explaining a bonded substrate for a display panel according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view illustrating one pixel structure formed in the panel region shown in FIG.

1 and 2, a laminating board for a display panel according to an embodiment of the present invention includes first and second mother boards 100 and 200, a sealant guide member 300, and a sealant 400 .

First, a bonding substrate according to the present invention is for manufacturing a flat panel display panel including a liquid crystal display panel, a plasma display panel, an organic light emitting display panel, and an electrophoretic display panel. Accordingly, in the following description, it is assumed that the adhesion substrate according to the present invention is for manufacturing a liquid crystal display panel.

The first mother substrate 100 may be a first substrate of a liquid crystal display panel, more specifically a thin film transistor array substrate. The first mother substrate 100 includes a plurality of panel regions PA formed to have the same area or different areas.

Each of the plurality of panel areas PA may be arranged in a lattice form on the first mother substrate 100. At this time, the panel regions PA adjacent to each other in the first direction X of the first mother substrate 100 are arranged to be in contact with each other. The panel areas PA adjacent to each other in the second direction Y of the first mother substrate 100 perpendicular to the first direction X are spaced apart from each other by a predetermined distance.

Each of the plurality of panel areas PA includes a display area DA and a non-display area NDA surrounding the display area DA.

The display region DA includes a plurality of gate lines (not shown) defining a plurality of pixel regions, a plurality of data lines (not shown), and a plurality of pixels P formed in each of the plurality of pixel regions .

Each of the plurality of pixels P may include a thin film transistor TFT, a pixel electrode (not shown), and a common electrode (not shown).

The thin film transistor TFT includes a gate electrode GE formed on the first mother substrate 100 together with the gate line, a gate insulating film 101 covering the gate line and the gate electrode GE, An active layer AL formed on the gate insulating layer 101 so as to overlap the data line GE, a source electrode SE and a drain electrode DE formed together with the data line so as to be spaced apart from each other on the active layer AL, AL, and a protective film 103 covering the source electrode SE and the drain electrode DE. Here, the active layer AL may be formed of a semiconductor material such as a-Si, poly-Si, oxide, or organic.

The pixel electrode is formed on the protective film 103 of the opening region and is electrically connected to the drain electrode DE of the thin film transistor TFT through a contact hole (not shown) formed in the protective film 103 . The pixel electrodes may be formed in a plurality of lines or curves, and a single layer or a multi-layer structure of a transparent conductive material or an opaque conductive material may be formed.

The common electrode may be formed on the same layer as the gate electrode GE or the pixel electrode PE. Here, when the common electrode is formed on the same layer as the gate electrode (GE), the common electrode may be formed in a plurality of spaces between the plurality of pixel electrodes, or may be formed as a pillar so as to have an area corresponding to the opening region And may be superimposed on all of the plurality of pixel electrodes. The common electrode is formed on the first mother substrate 100 or the second mother substrate 200 according to the liquid crystal driving mode of the liquid crystal display panel.

The non-display area NDA includes a data pad portion PP (not shown) connected to each of the plurality of data lines, and a gate driving circuit (not shown) for supplying a gate signal to each of the plurality of gate lines .

The data pad unit PP includes a plurality of data pads connected to a plurality of data lines, which are formed in the non-display area NDA on the first side of each panel area PA.

The gate driving circuit is formed on the first mother substrate 100 so as to be disposed on one side or both sides of the non-display region NDA of each panel region PA together with the thin film transistor TFT, And outputting a shift register.

A planarization layer 105 covering the pixel electrode and the protective layer 103 and a lower alignment layer (not shown) covering the planarization layer 105 are added to the first mother substrate 100 according to the structure of the liquid crystal display panel Or a lower alignment layer that covers the pixel electrode and the passivation layer 103 may be further formed.

The second mother substrate 200 may be a second substrate of the liquid crystal display panel, more specifically, a color filter array substrate. This second mosquito panel 200 comprises a black matrix 201, a color filter 203, and an overcoat layer 205.

The black matrix 201 is formed on the second mother substrate 200 to define each of a plurality of panel regions PA formed on the first mother substrate 100, The pixel region is defined. That is, the black matrix 201 is formed to overlap the non-display area NDA, the gate line, the data line, and the thin film transistor TFT of each panel area PA formed in the first mother substrate 100 Thereby defining a light transmitting region in which the color filter is to be formed. The black matrix 201 prevents light leakage in the remaining region except for the light transmission region and absorbs external light.

The color filter 203 is formed in a light transmitting region defined by the black matrix 201 and may include a color filter layer of red, green, and blue corresponding to the color implementation of each pixel P have.

The overcoat layer 205 is formed to cover the black matrix 201 and the color filter 203 to planarize the opposing face of the first mother substrate 200 facing the first mother substrate 100.

The second mother substrate 200 further includes a column spacer (not shown) formed at a predetermined height in the overcoat layer 205 overlapping the black matrix 201 to maintain a constant cell gap of the adhesion substrate . In addition, an upper alignment layer (not shown) may be further formed on the second mother substrate 200 to cover the column spacer and the overcoat layer 205.

The sealant guide member 300 is formed on the second mother substrate 200 so as to surround each of the plurality of panel regions PA to provide a sealant forming region SA. That is, the sealant guide member 300 is formed on the second mother substrate 200 so as to overlap the edge portions (or non-display regions) of the plurality of panel regions PA defined in the first mother substrate 100, And the sealant forming area SA surrounding each of the plurality of panel areas PA is provided. The sealant guide member 300 may be formed to be shared between the adjacent panel areas PA in the first direction X. [

3 and 4, the sealant guide member 300 according to one embodiment includes a sealant 400 for sealing the first and second mother substrates 100 and 200, A fill area A1 and a sealant unfilled area superimposed on a line along which the object is to be cut SL to cut the first and second mosquito plates 100 and 200 to the display panel, (A2). To this end, the sealant guide member 300 according to one embodiment includes first and second outer dam 310a, 310b, first and second inner dam 320a, 320b, first and second intermediate dam 330a , And 330b.

Each of the first and second outer dam 310a and 310b is formed to have a predetermined height on a second mother substrate 200 that overlaps a non-display area NDA of the panel area PA, Surrounding the area PA. Each of the first and second outer dam 310a and 310b is formed in a closed loop shape having a trapezoidal cross section to define an outermost line of the sealant forming area SA. Each of the first and second outer dams 310a and 310b prevents the spread of the sealant 400 applied to the sealant forming area SA when the first and second mother boards 200 are attached to each other, The cell gap between the first and second mother substrates 200 which are bonded together with the liquid crystal layer LC interposed therebetween can be prevented by preventing the sealant spreading failure due to the spread of the liquid crystal layer 400 inside the adjacent panel area PA It also keeps it constant. Further, each of the first and second outer dams 310a and 310b prevents the bezel width of the display panel, which is generated due to the spread of the sealant 400, from being increased.

The first and second inner dams 320a and 320b are formed on the second mother substrate 200 between the first and second outer dams 310a and 310b so as to be spaced apart from each other, The sealant unfilled area A2 is provided in the sealant SA. In other words, each of the first and second internal dams 320a and 320b is formed at a predetermined height on the second mother substrate 200 so as to overlap the edge of the panel area PA, And has a trapezoidal cross section having the same height as that of the first and second electrodes 310a and 310b. The central portion of each of the first and second inner dams 320a and 320b is overlapped with the line SL for cutting the first and second mother boards 100 and 200 to be opposite to each other to the display panel .

Each of the first and second intermediate dams 330a and 330b is formed on the second mother board 200 between the outer dams 310a and 310b and the inner dams 320a and 320b, The sealant filling area A1 is provided within the sealant filling area SA. In other words, the first intermediate dam 330a is formed on the second mother board 200 between the first outer dam 310a and the first inner dam 320a so that the sealant filling area A1, . The second intermediate dam 330b is formed on the second mother board 200 between the second outer dam 310b and the second inner dam 320b to form the sealant filling area A1 do.

Each of the first and second intermediate dams 330a and 330b may include a plurality of outer dams 310a and 310b and inner dams 320a and 320b to maintain a constant cell gap between the first and second mother substrates 200. [ Or a trapezoidal shape having a height lower than that of the inner dam 320a or 320b to prevent the sealant 400 from being filled in the sealant unfilled region A2, Shaped cross-section. In addition, the first and second intermediate dams 330a and 330b may have a plurality of spaced apart intervals.

The sealant filling region A1 is provided between the first inner dam 320a and the first intermediate dam 330a and is provided between the second inner dam 320b and the second intermediate dam 330b do. The area between the outer dams 310a and 310b and the middle dams 330a and 330b may be determined depending on the application amount of the sealant 400 applied on the sealant guide member 300, And the sealant unfilled region A2.

Each of the dams 310a, 310b, 320a, 320b, 330a, and 330b of the sealant guide member 300 is formed on the black matrix 201 with a color filter layer 203 of red, green, and blue, And the overcoat layer 205 may be formed to protrude from the second mother substrate 200 toward the first mother substrate 100 by at least two stacked structures. For example, each of the dams 310a, 310b, 320a, 320b, 330a, and 330b may include at least one of a color filter layer of the black matrix 201, red, green, and blue color filter layers 203, Laminated structure; A stacked structure of the black matrix 201 and the column space, and a stacked structure of the black matrix 201 and the overcoat layer 205. Here, the patterning process of the column spacer and the overcoat layer 205 may be performed by a diffraction exposure process and an etching process, and the diffraction exposure process may include a half-tone mask having a light shielding portion and a diffractive exposure portion, Can be used.

In the above description, the sealant guide member 300 is formed to surround each panel area PA. However, the sealant guide member 300 may be formed only in an area overlapping between the panel areas PA contacting each other . In this case, the periphery of each panel area PA where the sealant guide member 300 is not formed is surrounded by the sealant 400. At this time, the sealant 400, which is formed at the periphery of each panel area PA where the sealant guide member 300 is not formed to maintain the cell gap between the first and second mother substrate 100 and 200, A gap holding member (not shown) may be mixed. The gap holding member may be a metallic ball.

The sealant 400 is coated on the sealant guide member 300 while surrounding each panel area PA to have a dual shape by a seal dispenser device (not shown) The plates 100 and 200 are attached to each other. Here, the sealant 400 is hardened by photo-curing and then completely cured by thermal curing.

4 and 5, the sealant 400 includes acid portions 410a and 410b filled in the sealant filling region A1 of the sealant guide member 300, And a valley portion 420 that is not filled in the sealant unfilled region A2 of the member 300. [ The sealant 400 having the double shape is spread by the laminating pressing force when the first and second mother boards 100 and 200 are attached to each other in the opposite direction. At this time, the dams 310a and 310a of the sealant guide member 300, 310b, 320a, 320b, 330a, and 330b.

The sealant 400 is discharged from a syringe nozzle (not shown) of the actual dispenser and is applied onto the sealant guide member 300. The sealant 400 may be applied to the sealant guide member 300, Respectively. As a result, the acid portions 410a and 410b of the sealant 400 are filled in the sealant filling region A1 and are convexly applied, thereby being completely cured by the sealant curing process, so that the first and second mother boards 100, 200 are bonded together. On the other hand, the bony portion 420 of the sealant 400 is recessed between the acid portions 410a and 410b so as not to fill the sealant filled region A1, An empty space is provided between the display panel DP and the display panel DP to facilitate the cutting process of separating the adherend substrate into the display panel DP along the line along which the material is to be cut SL.

The acid portions 410a and 410b of the sealant 400 which are filled in the sealant filling region A1 and are convexly applied to the first and second mother boards 100 and 200 are pressed against each other Filling area A2. Therefore, when the sealant 400 overflows in the sealant filling region A1 is saturated in the non-filling region A2, the double shape of the sealant 400 as described above can not be obtained. The coating amount and the width of each of the acid portions 410a and 410b and the valley portion 420 of the sealant 400 are set such that the unfilled region A2 is filled in the sealant 400 overflowing in the sealant filled region A1 So that it is not saturated by the above.

The sealant 400 according to an embodiment of the present invention has a sealant filling region 330 provided between the first inner dam 320a and the first intermediate dam 330a of the sealant guide member 300 using a single syringe nozzle, The sealant 300 is first coated on the sealant guide member 300 and then the sealant 300 is applied to the sealant filling area A1 provided between the second inner dam 320b and the second intermediate dam 330b By applying the sealant 300 to the surface of the substrate W2. At this time, the valley portion 420 of the sealant 400 may be formed by a portion of the sealant 400 applied to the sealant filling region A1 in a primary and a secondary directions.

The double shape of the sealant 400 according to another embodiment may be formed according to the shape of the syringe nozzle 500 as shown in FIG.

The syringe nozzle 500 according to one embodiment may include an ejection opening 510 and an ejection blocking member 520. The discharge port 510 is formed in a tubular shape having a circular or polygonal cross section to discharge the sealant 400 onto the sealant filled region A1. The discharge blocking member 520 is installed at the center of the discharge port 510 to prevent the sealant 400 from being discharged from the central region of the discharge port 510. As shown in FIG. 6A, the discharge blocking member 520 may be formed in a circular or polygonal column shape and may be installed in the central region of the discharge port 510, may be installed in the discharge port 510 so as to have an "&thetas;" or "L" The syringe nozzle 500 according to an embodiment of the present invention is applied to the sealant guide member 300 by discharging a relatively larger amount of the sealant 400 than the center portion in a region other than the central portion of the discharge port 510 The sealant 400 has a double shape including the mountain portions 410a and 410b and the valley portion 420. [ At this time, the valley portion 420 of the sealant 400 is formed by the discharge blocking member 520, and by the part of the sealant 400 discharged from the discharge port 510 to the sealant filling region A1 .

6 (d), the syringe nozzle 500 according to another embodiment may include the first and second discharge ports 510a and 510b, and the communication portion 510c. Each of the first and second discharge ports 510a and 510b is formed to be in contact with each other so as to have a tube shape of a circular or polygonal cross section. The communicating part 510c is formed on the joint surface between the first and second outlets 510a and 510b to allow the first and second outlets 510a and 510b to communicate with each other. The syringe nozzle 500 according to another embodiment discharges a relatively large amount of the sealant 400 at the first and second discharge ports 510a and 510b than the communication portion 510c, The sealant 400 applied to the substrate 300 has a double shape comprising the acid portions 410a and 410b and the valley portion 420. [ At this time, the valley part 420 of the sealant 400 is sealed in the sealant filling area A1 at the sealant 400 discharged through the communication part 510c and the first and second discharge ports 510a and 510b And may be formed by a part of the sealant 400 to be discharged.

The syringe nozzle 500 according to another embodiment may include a pair of discharge ports formed to have a tube shape of a circular or polygonal cross section, although not shown. The syringe nozzle 500 according to another embodiment discharges the sealant 400 through each of the pair of the discharge ports so that the sealant 400 applied to the sealant guide member 300 is separated from the acid portions 410a, 410b, and a valley portion 420. [0054] As shown in FIG. At this time, the valley portion 420 of the sealant 400 may be formed by a portion of the sealant 400 discharged to the sealant filling region A1 at each of the pair of discharge ports.

Referring to FIG. 1 again, the line along which the material is to be divided SL is set so as to overlap the sealant unfilled region A2 of the sealant guide member 300. Here, in the case of the above-described second mother substrate 200, the line along which the material is to be cut SL is superimposed on the sealant unfilled region A2 of the sealant guide member 300 formed to surround each panel region PA And may be composed of first to fourth lines SL1, SL2, SL3, and SL4. On the other hand, in the case of the first mother substrate 100 described above, the line along which the object is to be cut SL is formed on the second to fourth lines SL to be cut 4, which are set in the second mother substrate 200, The first to-be-cut lines SL2, SL3, and SL4 overlapping the first to-be-cut lines SL1 to SL4, and the panel region PA in which the data pad unit PP is formed, (SL5).

FIG. 7 is a modification of the adhesion board for a display panel according to an embodiment of the present invention, which is constructed by changing the layout structure of the panel regions formed on the first and second mother boards. Accordingly, only the layout structure of the panel area will be described in the following description.

1, each of the plurality of panel areas PA is arranged so as to be in contact with each other in the first direction X. However, in the second direction Y, Are spaced apart at regular intervals. This is because the data pad portions PP formed on the upper side of each of the adjacent panel regions PA in the second direction Y are arranged in the same direction so that the adjacent panel regions PA in the second direction Y overlap each other And are spaced apart at regular intervals.

On the other hand, in the bonded substrate for a display panel according to the modified embodiment of the present invention shown in Fig. 7, each of the plurality of panel areas PA is arranged in contact with each other in the first direction X, The adjacent panel areas PA are arranged so as to be in contact with each other. This is because the data pad portions PP formed on the upper side of each of the adjacent panel regions PA in the second direction Y are arranged in the opposite directions to each other so that the adjacent panel regions PA in the second direction Y overlap each other And the like. In other words, the two adjacent panel areas PA with respect to the second direction Y are arranged to be symmetrical with respect to the center of the first direction X as a reference. Thus, the two panel areas PA contacting with each other in the first direction X share two panel regions PA that share the above-mentioned third line to be cut SL3 and are in contact with each other in the second direction Y, The above-mentioned second segmentation line SL2 is shared.

In the above description, the sealant guide member 300 is formed on the second mother substrate 200, but the present invention is not limited thereto. The sealant guide member 300 may be formed on the first mother substrate 100 It is possible. In this case, each of the dams 310a, 310b, 320a, 320b, 330a, and 330b of the sealant guide member 300 may include a diffraction exposure process and an etching process for the planarization layer 105, Process. ≪ / RTI > At this time, the diffraction exposure process may use a half-tone mask having a light shielding portion and a diffractive exposure portion.

The adhesion substrate for a display panel according to the present invention as described above is characterized in that the sealant unfilled region A2 is provided so as to overlap with the line along which the material is to be divided and the sealant 400 is not yet filled in the sealant non- Thereby facilitating the cutting process of separating the bonded substrate to the display panel DP along the line along which the material is to be cut SL and making the cut surface of the display panel uniform.

While the present invention has been described with reference to the above description, it is to be understood that the invention is not limited to the disclosed embodiments, Panels, and electrophoretic display panels, and the like. In this case, the configuration of the first and second mother boards 100 and 200 and the method of forming the seal guide member 300 may be changed according to the structure and structure of the flat panel display panel.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the general inventive concept as defined by the appended claims and their equivalents. Will be clear to those who have knowledge of.

100: first mother board 200: second mother board
300: sealant guide member 310a, 310b: outer dam
320a, 320b: inner dam 330a, 330b: intermediate dam
400: Sealant

Claims (9)

A first mother board having a plurality of panel areas arranged to contact with each other along at least one of first and second directions perpendicular to each other;
A second motherboard including a black mattress defining each of the plurality of panel areas;
A sealant guide member formed on the first mother substrate or the second mother substrate so as to be shared between the adjacent panel regions; And
And a sealant that is formed on the sealant guide member and surrounds the plurality of panel regions, and seals the first and second mother boards to face each other,
Wherein the sealant guide member includes a sealant filled region in which the sealant is filled and a sealant unfilled region in which the sealant is not filled. The method according to claim 1,
Wherein the sealant unfilled region overlaps the line to be cut for separating the panel region into a display panel. 3. The method of claim 2,
The sealant guide member
An outer dam that blocks the sealant from spreading into the interior of the panel area;
An inner dam spaced apart from the outer dam to provide the sealant unfilled area; And
And an intermediate dam between the outer dam and the inner dam to provide the sealant filling region. The method of claim 3,
Wherein the sealant is filled in the sealant filling region provided between the inner dam and the middle dam to adhere the first and second mother boards to each other. The method of claim 3,
Wherein the outer dam, the inner dam, and the intermediate dam each maintain a cell gap between the first and second mother boards facing each other. The method of claim 3,
Wherein the intermediate dam is formed at a lower height than the inner dam. 7. The method according to any one of claims 1 to 6,
Wherein the sealant guide member is formed to surround each of the plurality of panel regions. 7. The method according to any one of claims 1 to 6,
A color filter is formed in the light transmitting region defined by the black mattress on the second mother substrate and a column spacer is formed for maintaining a cell gap between the first mother substrate and the second mother substrate,
Wherein the sealant guide member protrudes from the second mother substrate to the first mother substrate by a laminated structure of the black mattress, the color filter, and the column spacer. 7. The method according to any one of claims 1 to 6,
And a liquid crystal layer formed between the first and second mother substrates.

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