KR20140133306A - Sealant dispenser - Google Patents

Abstract

A sealant dispenser comprises: a substrate including a display area; a nozzle forming a sealing pattern by discharging a sealant continuously to surroundings of the display area; and a laser displacement sensor unit light-emitting laser to the substrate, light-receiving the laser reflected from the substrate, and measuring clearance between the nozzle and the substrate, wherein the nozzle maintains regular clearance with the substrate according to the measured value, and an image-forming point defined as a point where the laser is reflected from the substrate is arranged between the neighboring sealing patterns when the neighboring sealing patterns are formed between the neighboring display areas.

Description

SEALANT DISPENSER < RTI ID = 0.0 >

The present invention relates to a sealant dispenser.

BACKGROUND ART [0002] Recently, a liquid crystal display (LCD), an organic light emitting diode (OLED), an electro wetting display device, a plasma display panel (PDP), and an electrophoretic display Display Device) are being developed.

Generally, two substrates facing each other are used as display devices. For example, a liquid crystal display device includes a first substrate on which a plurality of pixels are defined, a second substrate facing the first substrate, and a liquid crystal layer disposed between the first substrate and the second substrate.

The defined pixels of the first substrate include a thin film transistor connected to the pixel electrode and the pixel electrode, respectively. A common electrode is disposed on the second substrate. The arrangement of the liquid crystals of the liquid crystal layer is changed by the electric field formed by the data voltage applied to the pixel electrodes by the thin film transistors and the common voltage applied to the common electrode. The light transmittance is adjusted according to the arrangement of the changed liquid crystals to display an image.

The first substrate and the second substrate may be bonded together by a sealant (or sealant). The sealing material is formed of a compound containing a polymer resin. Further, the sealing material may be a thermosetting resin. A sealing pattern is formed on the substrate of either the first substrate or the second substrate using a sealing material. The sealing pattern is disposed around the display area where the image is displayed. The first and second substrates are bonded together by the sealing pattern, and the gap between the first substrate and the second substrate can be maintained. Since the space between the first and second substrates is sealed by the sealing pattern, the liquid crystal layer may not leak to the outside.

The sealing material is applied on the substrate by a so-called sealant dispenser. The sealant dispenser includes a nozzle for discharging the sealing material and a laser displacement sensor for measuring the distance between the nozzle and the substrate. According to the measured value of the laser displacement sensor, the interval between the nozzle and the substrate is controlled to be constant.

An object of the present invention is to provide a sealant dispenser capable of preventing defective sealing patterns.

A sealant dispenser according to an embodiment of the present invention includes a substrate including display areas, a nozzle for continuously forming a seal pattern by discharging a sealant around the display areas, and a laser for emitting light onto the substrate, And a laser displacement sensor unit for measuring the distance between the nozzle and the substrate by receiving the laser beam, wherein the nozzle maintains a predetermined distance from the substrate in accordance with the measured value, Is disposed between the adjacent sealing patterns when the sealing patterns adjacent to each other between the adjacent display areas are formed.

The nozzle and the imaging point are not collinear in a first direction on a plane, and the distance between the nozzle and the imaging point in the first direction is formed to be 1 mm.

The nozzle and the imaging point are not arranged in a line on a plane in a second direction orthogonal to the first direction and the distance between the nozzle and the imaging point in the second direction is formed to be 0.7 mm.

The distance between the center portions of the adjacent sealing patterns is 1.25 mm to 1.4 mm.

Each of the sealing patterns has a width of 0.15 mm to 0.35 mm.

The sealant dispenser of the present invention can prevent defective sealing patterns.

1 is a perspective view of a sealant dispenser according to an embodiment of the present invention.
2 is a side view of the sealant dispenser shown in FIG.
3 is a front view showing a state in which the front surface of the laser displacement sensor unit shown in FIG. 1 is viewed.
FIG. 4 is a plan view showing the positions of the nozzle and the painting point shown in FIG. 3. FIG.
FIG. 5 is a view showing a sealing pattern formed on a substrate using the sealant dispense shown in FIG. 1. FIG.
6 is an enlarged view of the first area A1 shown in Fig.
7 is a view showing a case where the distance between the nozzle and the painting point in the first direction is set longer than the first distance.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the invention to those skilled in the art. To fully disclose the scope of the invention to a person skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

It is to be understood that when an element or layer is referred to as being "on" or " on "of another element or layer, All included. On the other hand, a device being referred to as "directly on" or "directly above " indicates that no other device or layer is interposed in between. "And / or" include each and every combination of one or more of the mentioned items.

The terms spatially relative, "below", "beneath", "lower", "above", "upper" May be used to readily describe a device or a relationship of components to other devices or components. Spatially relative terms should be understood to include, in addition to the orientation shown in the drawings, terms that include different orientations of the device during use or operation. Like reference numerals refer to like elements throughout the specification.

Although the first, second, etc. are used to describe various elements, components and / or sections, it is needless to say that these elements, components and / or sections are not limited by these terms. These terms are only used to distinguish one element, element or section from another element, element or section. Therefore, it goes without saying that the first element, the first element or the first section mentioned below may be the second element, the second element or the second section within the technical spirit of the present invention.

Embodiments described herein will be described with reference to plan views and cross-sectional views, which are ideal schematics of the present invention. Thus, the shape of the illustrations may be modified by manufacturing techniques and / or tolerances. Accordingly, the embodiments of the present invention are not limited to the specific forms shown, but also include changes in the shapes that are generated according to the manufacturing process. Thus, the regions illustrated in the figures have schematic attributes, and the shapes of the regions illustrated in the figures are intended to illustrate specific types of regions of the elements and are not intended to limit the scope of the invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view of a sealant dispenser according to an embodiment of the present invention. 2 is a side view of the sealant dispenser shown in FIG.

1 and 2, the sealant dispenser 100 of the present invention includes a first driving part 10, a second driving part 20, a first supporting part 31, a second supporting part 32, The syringe connection part 42, the syringe SYR, the syringe fixing part 50, the connecting pipe CNE, the nozzle NOZ, the laser displacement sensor part 60, and the moving part 33, the first connection part 41, the syringe connection part 42, And a rail portion 70.

Hereinafter, any one direction on the plane is defined as a first direction X1, and a direction orthogonal to the first direction X1 on the plane is defined as a second direction X2. A direction perpendicular to the downward direction in the plane formed by the first and second directions X1 and X2 is defined as a third direction X3 and a direction opposite to the first direction X1 is defined as a direction perpendicular to the fourth direction X4, . Hereinafter, in each configuration, the face in the first direction X1 is defined as the front face, and the face in the fourth direction X4 is defined as the rear face.

The first driving part 10 has a long side in the second direction X2 and a short side in the third direction X1. The lower part of the first driving part 10 is connected to the first supporting part 31. The first driving part 10 can move the first supporting part 31 up and down.

The first driving part 10 includes a first driving motor 11 and a first driving shaft 12. The first drive shaft 12 is connected to the lower portion of the first drive motor 11 and the upper portion of the first support portion 31. When the first drive motor 11 is driven, the first drive motor 11 can move the first drive shaft 12 up and down. Therefore, the first support portion 31 connected to the first drive shaft 12 can be moved up and down by the first drive shaft 12. [

The first support portion 31 may extend in the third direction X3. The first support portion 31 has a long side in the third direction X3 and a short side in the second direction X2.

The second support portion (32) is arranged to be parallel to the first support portion (31). The second support portion 32 has a length smaller than the first support portion 31 in the third direction X3. A second driving unit 20 is connected to the upper side of the front surface of the second support unit 32.

A first connection part 41 is disposed between the first support part 31 and the second support part 32. The first supporting portion 31 is connected to the second supporting portion 32 by the first connecting portion 41. Specifically, the first connection portion 41 is disposed between the front surface of the first support portion 31 and the rear surface of the second support portion 32. The front surface of the first support portion 31 and the rear surface of the second support portion 32 are connected by the first connection portion 41.

The second driving unit 20 has a long side in the second direction X2 and a short side in the first direction X1. The lower part of the second driving part 20 is connected to the syringe connecting part 42. The second driving part 20 can move the syringe connecting part 42 up and down.

The second driving unit 20 includes a second driving motor 21 and a second driving shaft 22. The second drive shaft 22 is connected to the lower portion of the second drive motor 21 and the upper portion of the syringe connection portion 42. When the second drive motor 21 is driven, the second drive motor 21 can move the second drive shaft 22 up and down. Accordingly, the syringe connecting portion 42 connected to the second driving shaft 22 can be moved up and down by the second driving shaft 22. [ A syringe (SYR) is connected to the syringe connecting portion (42).

The syringe connecting portion 42 includes a first connecting member 43 and a second connecting member 44. The first linking member 43 has a long side in the second direction X2 and a short side in the first direction X1. The first connecting member 43 is arranged horizontally. The upper surface of the first linking member 43 is connected to the lower portion of the second drive shaft 22. The second linking member 44 is spaced apart from the second drive shaft 22 in the first direction X1 by a predetermined distance and is connected to the upper surface of the first linking member 43. [

The second linking member 44 is connected to the first extending portion 44_1 extending in the first direction X1 and the end of the first extending portion 44_1 in the first direction X1, And a second extending portion 44_2 extending from the second extending portion 44_2. Therefore, the second linking member 44 has an "a" shape as shown in FIG.

One side of the first extension 44_1 is spaced apart from the second drive shaft 22 in the first direction X1 by a predetermined distance and connected to the upper surface of the first connection member 43. [ The other side of the first extended portion 44_1 is connected to the upper side of the second extended portion 44_2.

A syringe SYR is connected to the front surface of the second extended portion 44_2 of the second linking member 44. [ The upper surface of the third supporting portion 33 is connected to the lower rear surface of the second extending portion 44_2 of the second connecting member 44. [

The laser displacement sensor unit 60 is connected to the lower portion of the second support portion 32. The vertical lengths of the laser displacement sensor part 60 and the third support part 33 may be set to be the same. The front surface of the laser displacement sensor part 60 and the third support part 33 may be arranged in parallel facing each other.

A movable rail part (70) is disposed between the laser displacement sensor part (60) and the third support part (33). The movable rail portion 70 can be fixed to the laser displacement sensor portion 60. [ The third support portion 33 can be moved up and down along the movement rail portion 70.

The syringe connecting portion 42 can be moved up and down by the second driving portion 20. [ The syringe connection portion 42 is connected to the third support portion 33. Accordingly, when the syringe connecting part 42 is moved up and down by the second driving part 20, the third supporting part 33 connected to the syringe connecting part 42 is also moved up and down. The third support portion 33 can be moved up and down along the movement rail portion 70.

Although not shown, a predetermined groove extending in the third direction X3 may be formed on the front surface of the movable rail 70. A rail extending in the third direction X3 and inserted into the groove may be formed on the rear surface of the third support portion 33. [ The rail is moved along the groove. Therefore, the third supporting portion 33, which is moved up and down by the second driving portion 20, can be moved up and down along the moving rail portion 70.

The syringe SYR extends in the third direction X3. The syringe (SYR) may have a cylindrical shape. That is, the plane section of the syringe (SYR) may have a circular shape. However, the present invention is not limited to this, and the cross section of the syringe SYR may have various shapes such as a rectangle, a triangle, and a hexagon. The syringe (SYR) is filled with a sealant (or sealant).

A syringe fixing part (50) is disposed on the lower front side of the third supporting part (33) and connected to the entire lower side of the third supporting part (33). The syringe fixing portion 50 includes a predetermined hole H. [ Although not shown, the hole H of the syringe holder 50 may have the same shape as a cross section on the plane of the syringe SYR. The lower portion of the syringe SYR can be inserted into the hole H and fixed.

The nozzle NOZ is disposed below the laser displacement sensor unit 60 at a predetermined distance from the laser displacement sensor unit 60. [ The connection pipe CNE extends in the fourth direction X4 to connect the syringe SYR with the nozzle NOZ.

The nozzle NOZ is connected to the lower surface of one side of the connection pipe CNE and the other side of the connection pipe CNE is connected to the lower side of the syringe fixing part 50. [ The lower portion of the syringe SYR is inserted into the hole H of the syringe fixing portion 50. The other side of the connecting tube CNE is connected to the lower portion of the syringe SYR through the hole H .

The sealing material filled in the syringe (SYR) can be discharged through the nozzle (NOZ) via the connecting pipe (CNE).

The first support portion 31 can be moved up and down by the first drive portion 10. [ The syringe connected to the second driving part 20 through the second supporting part 32 connected to the first supporting part 31, the laser displacement sensor part 60 connected to the second supporting part 32 and the syringe connecting part 42 SYR), a connection pipe (CNE) connected to the syringe (SYR), and a nozzle (NOZ) connected to the connection pipe (CNE) can be moved up and down simultaneously. That is, the laser displacement sensor unit 60 and the nozzle NOZ can be moved up and down by the first driving unit 10.

The second driving part 20 is connected to the syringe SYR through the syringe connection part 42. The syringe SYR is connected to the connection pipe CNE and the connection pipe CNE is connected to the nozzle NOZ. Therefore, the nozzle NOZ can be moved up and down by the second driving portion 20. [

The laser displacement sensor unit 60 and the nozzle NOZ are adjusted to have a predetermined gap with the substrate by the first driving unit 10 and the nozzle NOZ and the substrate NOZ are adjusted more precisely by the second driving unit 20, Can be adjusted.

When the sealing material discharged from the nozzle NOZ is provided on the substrate, the gap between the nozzle NOZ and the substrate must be kept constant. The laser displacement sensor unit 60 measures the gap between the nozzle and the substrate, and provides the measured gap data to a control unit (not shown). The control unit may control the first and second driving units 10 and 20 so that the interval between the nozzle NOZ and the substrate becomes constant based on the interval data.

3 is a front view showing a state in which the front surface of the laser displacement sensor unit shown in FIG. 1 is viewed. In FIG. 3, only parts of the laser displacement sensor unit 60 and the syringe SYR, the connection pipe CNE and the nozzle NOZ are shown for convenience of explanation. The syringe SYR is not shown in the drawings so that the light emitting portion and the light receiving portion of the laser displacement sensor portion 60 can be seen.

Referring to FIG. 3, the laser displacement sensor unit 60 emits a laser beam LB onto a substrate S and receives a laser beam LB reflected from the substrate.

The laser displacement sensor unit 60 includes a light emitting unit 61 and a light receiving unit 62 disposed at a predetermined interval from the light emitting unit 61. The nozzle NOZ may be disposed between the light emitting portion 61 and the light receiving portion 62 in a state where the front side of the laser displacement sensor portion 60 is viewed. That is, the nozzle NOZ may be disposed between the light emitting portion 61 and the light receiving portion 62 in the lower portion of the laser displacement sensor portion 60.

The light emitting portion 61 of the laser displacement sensor portion 60 emits a laser beam LB onto the substrate S. The laser beam LB emitted onto the substrate S is reflected on the substrate S and is received by the light-receiving portion 62. The point of the substrate S on which the laser beam LB is reflected may be defined as a laser spot L_S (Laser Spot).

The laser displacement sensor unit 60 outputs an electric signal according to the position of the emission point L_S of the laser LB emitted from the light emitting unit 61 and reflected on the substrate S to the control unit, NOZ) of the exhaust gas.

FIG. 4 is a plan view showing the positions of the nozzle and the painting point shown in FIG. 3. FIG.

Referring to FIG. 4, the nozzles NOZ and the imaging points L_S are not collinearly arranged in the first direction X1. In addition, the distance between the nozzle NOZ and the imaging point L_S in the first direction X1 may be defined as the first distance D1. As an exemplary embodiment, the first distance D1 may be set to 1 mm.

The nozzles NOZ and the imaging points L_S are not arranged in the same direction in the second direction X2. In addition, the distance between the nozzle NOZ and the imaging point L_S in the second direction X2 may be defined as a second distance D2. As an exemplary embodiment, the second distance D2 may be set to 0.7 mm.

FIG. 5 is a view showing a sealing pattern formed on a substrate using the sealant dispense shown in FIG. 1. FIG.

Referring to FIG. 5, the substrate S includes a plurality of display areas DA1 and DA2 and a non-display area NDA between the display areas DA. Although two display areas DA1 and DA2 are shown in Fig. 5, the substrate S may include more display areas than this. As an exemplary embodiment, the substrate S shown in Fig. 5 may be any one of two substrates used in a liquid crystal display.

The sealant dispenser 100 can form the sealing patterns SL1 and SL2 by continuously discharging the sealing material around the display areas DA1 and DA2 while moving in the arrow direction shown in Fig. That is, the nozzle NOZ of the sealant dispenser 100 can continuously form the sealing patterns SL1 and SL2 by discharging the sealing material around the display areas DA1 and DA2. The sealing patterns SL1 and SL2 may also be defined as a seal line.

Although not shown, the sealant dispenser 100 moves in the direction opposite to the arrow shown in Fig. 5 and can discharge the sealing material onto the substrate S. In such a case, the sealant dispenser 100 shown in Fig. 1 may be rotated 180 degrees in a plane, and disposed opposite to the position shown in Fig.

The display areas DA1 and DA2 include a first display area DA1 and a second display area DA2. The sealing patterns SL1 and SL2 include a first sealing pattern SL1 formed around the first display area DA1 and a second sealing pattern SL2 formed around the second display area DA2.

6 is an enlarged view of the first area A1 shown in Fig. 6 shows the positions of the sealing patterns SL1 and SL2 adjacent to each other in the first region A1 and the positions of the nozzles NOZ and the imaging point L_P when the sealing patterns SL1 and SL2 are formed.

6, a first sealing pattern SL1 adjacent to the first display area DA1 is formed in the non-display area NDA between the adjacent first and second display areas DA1 and DA2, The second sealing pattern SL2 adjacent to the second display area DA2 is formed. Therefore, the second sealing pattern SL2 can be formed adjacent to the first sealing pattern SL1 between the first and second display areas DA1 and DA2.

When the first and second sealing patterns SL1 and SL2 adjacent to each other are formed between the first display area DA1 and the second display area DA2 adjacent to each other, 2 sealing patterns SL1 and SL2.

Specifically, the width W of the first sealing pattern SL1 and the width W of the second sealing pattern SL2 can be set to be the same. The width W of the first and second sealing patterns SL1 and SL2 may be set to 0.15 mm to 0.35 mm.

As described above, the first distance D1 between the nozzle NOZ and the imaging point L_S in the first direction X1 can be set to 1 mm. In addition, the second distance D2 between the nozzle NOZ and the imaging point L_S in the second direction X2 may be set to 0.7 mm.

Since the sealing material is discharged from the nozzle NOZ, the center portion of the nozzle NOZ corresponds to the center portion of the sealing patterns SL1 and SL2. Fig. 6 shows the position of the nozzle NOZ when the second sealing pattern SL2 is formed. Therefore, the center portion of the nozzle NOZ is shown to correspond to the center portion of the second sealing pattern SL2.

The distance between the center of the first sealing pattern SL1 adjacent to the center and the center of the second sealing pattern SL2 can be defined as the third distance D3. The third distance D3 may be set to 1.25 mm to 1.4 mm.

The distance between the interface of the first sealing pattern SL1 adjacent to each other and the interface between the second sealing pattern SL2 may be defined as the fourth distance D4. The distance from the center of the second sealing pattern SL2 to the interface of the second sealing pattern SL2 or the distance from the center of the nozzle NOZ to the interface of the second sealing pattern SL2 is defined as the fifth distance D5 . The distance between the right boundary surface of the first sealing pattern SL1 and the center portion of the nozzle NOZ can be defined as a sixth distance D6.

The third distance D3 may be set to the minimum distance and the width W of the first and second sealing patterns SL1 and SL2 may be set to the maximum width. For example, the third distance D3 may be set to 1.25 mm, and the width W of the first and second sealing patterns SL1 and SL2 may be set to 0.35 mm.

In this case, the fourth distance D4 may be formed to 0.9 mm, the fifth distance D5 may be set to 0.175 mm, and the sixth distance D6 may be set to 1.075 mm. Accordingly, the coloring point L_S disposed at a distance of 1 mm from the nozzle NOZ in the first direction X1 can be disposed between the first and second sealing patterns SL1 and SL2 adjacent to each other.

When the distance between the nozzle NOZ and the imaging point L_S is set larger than the first distance D1 in the first direction X1, the imaging point of the laser LB that emits light from the laser displacement sensor unit 60 L_S may be placed on the first sealing pattern SL1. In this case, when the second sealing pattern SL2 is formed, a phenomenon that the laser LB emitted from the laser displacement sensor unit 60 interferes with the first sealing pattern SL1 adjacent to the second sealing pattern SL2 .

The distance between the substrate S and the nozzle NOZ can not be smoothly measured when the laser LB emitted from the laser displacement sensor unit 60 interferes with the adjacent first sealing pattern SL1. Therefore, the gap between the substrate S and the nozzle NOZ can not be precisely controlled in the process of applying the sealing material onto the substrate S, and thus the sealing pattern defects may be caused such that the width, height, have.

However, the nozzle NOZ and the fusing point L_S of the sealant dispenser 100 of the present invention have a first distance D1. Accordingly, when the adjacent first and second sealing patterns SL1 and SL2 are formed, the imaging point L_S can be disposed between the adjacent first and second sealing patterns SL1 and SL2 .

The first distance D1 is set so that the laser LB emitted from the laser displacement sensor unit 60 has a distance that does not interfere with the adjacent first sealing pattern SL1. Since the laser LB does not interfere with the adjacent first sealing pattern SL1, the occurrence of the sealing pattern defect can be prevented.

As a result, the sealant dispenser 100 of the present invention can prevent the seal pattern defect.

7 is a view showing a case where the distance between the nozzle and the painting point in the first direction is set longer than the first distance.

Referring to Fig. 7, the distance between the nozzle NOZ and the fringing point L_S may be set to a seventh distance D7 which is longer than the first distance D1 shown in Figs.

The third distance D3 may be set to 1.25 mm with the minimum distance and the width W of the first and second sealing patterns SL1 and SL2 may be set to 0.35 mm with the maximum width. In this case, the fourth distance D4 may be formed to 0.9 mm, the fifth distance D5 may be set to 0.175 mm, and the sixth distance D6 may be set to 1.075 mm.

The seventh distance D7 is longer than the first distance D1, and may be set to 1.2 mm as an example. In this case, the position of the imaging point L_S may be disposed on the first sealing pattern SL1. Therefore, as described above, a phenomenon that the laser beam LB emitted from the laser displacement sensor unit 60 interferes with the first sealing pattern SL1 may occur.

When the laser LB interferes with the adjacent first sealing pattern SL1, the gap between the substrate S and the nozzle NOZ can not be smoothly measured. Therefore, the distance between the substrate S and the nozzle NOZ can not be precisely adjusted, and the sealing pattern defect, which is outside the set range of the width and height of the sealing material, may occur.

However, the nozzle NOZ and the fusing point L_S of the sealant dispenser 100 of the present invention have a first distance D1. Accordingly, when the adjacent first and second sealing patterns SL1 and SL2 are formed, the imaging point L_S can be disposed between the adjacent first and second sealing patterns SL1 and SL2 . Therefore, since the laser LB does not interfere with the adjacent first sealing pattern SL1, the occurrence of the sealing pattern defect can be prevented.

As a result, the sealant dispenser 100 of the present invention can prevent the seal pattern defect.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims. It will be possible. In addition, the embodiments disclosed in the present invention are not intended to limit the technical spirit of the present invention, and all technical ideas which fall within the scope of the following claims and equivalents thereof should be interpreted as being included in the scope of the present invention .

100: sealant dispenser 10: first driving part
20: second driving part 31: first supporting part
32: second support portion 33: third support portion
41: first connection part 42: syringe connection part
43: first connecting member 44: second connecting member
44_1: first extension part 44_2: second extension part
50: Syringe fixing part 60: Laser displacement sensor part
61: light emitting portion 62: light receiving portion
70: Moving rail part SYR: Syringe
NOZ: Nozzle L_S: Spot shop

Claims (7)

A substrate comprising display areas;
A nozzle for continuously forming a sealing pattern by discharging a sealing material around the display areas; And
And a laser displacement sensor unit that emits a laser beam onto the substrate and receives the laser beam reflected on the substrate to measure an interval between the nozzle and the substrate,
Wherein the nozzles are spaced apart from the substrate in accordance with the measured values and the imaging points defined as the points at which the laser is reflected from the substrate are formed when the sealing patterns adjacent to each other between adjacent display areas are formed, And a sealant dispenser disposed between the adjacent sealing patterns. The method according to claim 1,
Wherein the nozzle and the imaging point are not collinearly arranged in a first direction on a plane, and the distance between the nozzle and the imaging point in the first direction is formed to be 1 mm. 3. The method of claim 2,
Wherein the nozzle and the imaging point are not arranged in a plane on a same line in a second direction orthogonal to the first direction and the distance between the nozzle and the imaging point in the second direction is formed to be 0.7 mm. The method of claim 3,
Wherein a gap between the center portions of the adjacent sealing patterns is 1.25 mm to 1.4 mm. 5. The method of claim 4,
Wherein a width of each of the sealing patterns is 0.15 mm to 0.35 mm. The method according to claim 1,
A first driver;
A first supporting part which is moved up and down by the first driving part;
A second support portion disposed to face the first support portion and connected to the first support portion and connected to an upper portion of the laser displacement sensor portion;
A second driving unit connected to an upper surface of the second supporting unit not facing the first supporting unit;
A syringe connecting part connected to the second driving part and vertically conveyed;
A syringe connected to the syringe connection part and extending downward and filled with the sealing material; And
Further comprising a connection pipe connecting the lower portion of the syringe to the nozzle,
Wherein the nozzle is disposed below the laser displacement sensor part, and the sealing material is discharged through the nozzle via the connection tube. The method according to claim 6,
The laser displacement sensor unit includes:
A light emitting portion for emitting the laser onto the substrate; And
And a light receiving portion for receiving the laser reflected on the substrate,
And the nozzle is disposed between the light emitting portion and the light receiving portion at a lower portion of the laser displacement sensor portion.

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