KR20130073568A - Apparatus for applying additional sealant in flat panel display cell - Google Patents

Apparatus for applying additional sealant in flat panel display cell Download PDF

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Publication number
KR20130073568A
KR20130073568A KR1020110141491A KR20110141491A KR20130073568A KR 20130073568 A KR20130073568 A KR 20130073568A KR 1020110141491 A KR1020110141491 A KR 1020110141491A KR 20110141491 A KR20110141491 A KR 20110141491A KR 20130073568 A KR20130073568 A KR 20130073568A
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KR
South Korea
Prior art keywords
sealant
roller
flat panel
panel display
display cell
Prior art date
Application number
KR1020110141491A
Other languages
Korean (ko)
Inventor
이종관
정삼균
Original Assignee
주식회사 탑 엔지니어링
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 주식회사 탑 엔지니어링 filed Critical 주식회사 탑 엔지니어링
Priority to KR1020110141491A priority Critical patent/KR20130073568A/en
Publication of KR20130073568A publication Critical patent/KR20130073568A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/0102—Constructional details, not otherwise provided for in this subclass
    • G02F1/0107—Gaskets, spacers or sealing of cells; Filling and closing of cells
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/1303—Apparatus specially adapted to the manufacture of LCDs

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Coating Apparatus (AREA)

Abstract

PURPOSE: A coating apparatus of a reinforcing sealant for a flat panel display cell is provided to inject the reinforcing sealant to the corner of a flat panel display cell by letting a roller contact the corner of the flat panel display cell and coat the reinforcing sealant. CONSTITUTION: At least one flat panel display cell (100) is mounted on a cartridge (20). A roller (30) rotates in contact with the outer periphery of the flat panel display cell to coat a liquid reinforcing sealant on the outer periphery of the flat panel display cell. Reinforcing sealant supply units (50,55) supply the reinforcing sealant to the outer periphery of the roller.

Description

Applicator for applying additional sealant in flat panel display cell

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to sealing of flat panel display cells, and more particularly, to an apparatus for applying a reinforcement sealant to an edge of a flat panel display cell.

A flat panel display (FPD) is a video display device that is thinner and lighter than a television or a monitor employing a CRT. The flat panel display includes, for example, a liquid crystal display (LCD), a plasma display panel (PDP), a field emission display (FED), an organic light emitting diode (OLED), and the like. Among them, the OLED itself uses electrons and holes injected through the anode and the cathode to the organic thin film to recombine to form an exciton, and light of a specific wavelength is generated by energy from the exciton. It is a light emitting display device.

An OLED display cell is formed by sequentially stacking a lower electrode, an organic layer, and an upper electrode between a pair of panels, and sealing the outer periphery between the pair of panels. OLEDs are very susceptible to moisture and oxygen, requiring a high level of reliability for sealing and sealing between a pair of panels. Therefore, a method of applying a reinforcing sealant to the second seal after primary sealing of a pair of panels as a main sealant for adhesion and sealing is used.

In secondary sealing, a sealant head is provided having a nozzle in which droplets of the reinforcement sealant in the viscous liquid state leak down. However, the method of applying the reinforcement sealant using the sealant head is an OLED display cell due to factors such as an error in alignment between the OLED display cell and the sealant head or the presence of an external force affecting the drop path of the reinforcement sealant droplet. This can cause a problem of poor quality. Specifically, the droplets of the reinforcing sealant do not fall to the edge of the OLED display cell which is the target, but fall onto the surface of another OLED display cell which is not the target to contaminate the surface.

The present invention provides an apparatus for applying a reinforcement sealant of a flat panel display cell capable of applying the reinforcement sealant to the edge of the flat panel display cell without dropping the reinforcement sealant drop down.

The present invention also provides an apparatus for applying a reinforcement sealant for a flat panel display cell having a means for applying a reinforcement sealant in contact with an edge of the flat panel display cell.

The present invention is a cartridge to which at least one flat panel display cell is mounted, a roller for applying a liquid reinforcement sealant to the outer periphery of the flat panel display cell by rotating in contact with the outer periphery of the flat panel display cell, and the outer peripheral surface of the roller Provided is a reinforcement sealant coating apparatus for a flat panel display cell having a reinforcement sealant supply unit for supplying the reinforcement sealant thereto.

The reinforcement sealant applying apparatus of the flat panel display cell may further include a bracket surrounding the outer circumferential surface of the roller so that scattering of the reinforcement sealant supplied to the roller is suppressed.

The reinforcement sealant applying apparatus of the flat panel display cell may further include a doctor knife positioned to adjust the thickness of the reinforcement sealant supplied from the reinforcement sealant supply unit and stacked on the outer circumferential surface of the roller.

The flat panel display cell includes a pair of panels facing each other and bonded to the main sealant, and the outer periphery of the pair of panels forms a gap spaced by the thickness of the main sealant, and the gap is formed on the outer peripheral surface of the roller. An outer circumferential groove is formed at a corresponding position, and the reinforcement sealant may be configured to be supplied from the outer circumferential groove to a gap between the outer circumference when the outer circumferential surface of the roller contacts the outer circumference of the flat panel display cell.

The cartridge and the flat panel display cell mounted thereon may be configured to rotate in contact with the outer periphery of the flat panel display cell by moving in a horizontal direction with respect to the roller.

According to the apparatus for applying a reinforcement sealant of a flat panel display cell of the present invention, the reinforcement sealant is injected into the edge of the flat panel display cell by applying a reinforcement sealant in contact with the edge of the flat display cell. Therefore, it is possible to prevent contamination and failure of the flat panel display cell caused by the fall error of the reinforcement sealant droplets.

1 is a perspective view showing a reinforcing sealant applying apparatus of a flat panel display cell according to an embodiment of the present invention.
2 is a cross-sectional view taken along the line AA of FIG. 1.
3 is a cross-sectional view taken along the line BB of FIG. 2.
4 is a cross-sectional view illustrating a modification of FIG. 3.

Hereinafter, with reference to the accompanying drawings will be described in detail a reinforcement sealant coating apparatus of a flat panel display cell according to an embodiment of the present invention. The terminology used herein is a term used to properly express the preferred embodiment of the present invention, which may vary depending on the intention of the user or operator or the custom of the field to which the present invention belongs. Therefore, the definitions of the terms should be made based on the contents throughout the specification.

1 is a perspective view showing a reinforcement sealant coating apparatus of a flat panel display cell according to an embodiment of the present invention, Figure 2 is a cross-sectional view taken along the line A-A of Figure 1, Figure 3 is a cross-sectional view taken along the line B-B of FIG. 1 to 3, the reinforcement sealant application device 10 of the flat panel display cell 100 includes a cartridge 20, a roller 30, and a reinforcement sealant supply unit.

The cartridge 20 includes a plurality of mounting portions 25 on which a plurality of flat panel display cells 100 are mounted. The mounting portion 25 is in the form of a slot into which the flat panel display cell 100 may be fitted. Since the plurality of mounting portions 25 are arranged in a line in the X-axis direction, a plurality of flat panel display cells 100 may be mounted in the cartridge 20. The cartridge 20 is a rotary cartridge that can be rotated clockwise and counterclockwise as indicated by the arrow D3 with the cartridge shaft 22 extending in the X-axis direction as the rotation axis. In addition, the cartridge 20 is movable in the Y-axis direction.

Specifically, the cartridge shaft 22 is rotatably supported by the pair of shaft support walls 17, 18 of the cartridge holder 15. In addition, the cartridge holder 15 is slidably fastened to the guide groove 13 to be movable in the Y-axis direction. The guide groove 13 is formed along the Y-axis direction in the base 11 of the reinforcement sealant applying device 10.

On the other hand, the drive means for moving the cartridge holder 15 and the drive means for rotating the cartridge shaft 22 are not shown in detail in the drawings, but can be easily understood by those skilled in the art.

The roller 30 is disposed above the cartridge 20. The roller 30 applies the reinforcement sealant 120 in a liquid state to the outer periphery of the flat panel display cell 100. To this end, the roller 30 may be arranged to roll in contact with the outer periphery of the flat panel display cell 100 mounted on the cartridge 20.

Specifically, as shown in FIG. 3, the flat panel display cell 100 has a rectangular shape bonded to face a pair of panels 101 and 102 by using a main sealant 105. It has four corners on the outer periphery. The reinforcement sealant 120 is applied to the three edges 107, 108, and 109 except for the edge facing the mounting portion 25 when the mounting portion 25 of the flat panel display cell 100 is fitted.

The roller 30 can be rotated by the roller shaft 34. In this case, the roller shaft 34 extends in a direction in which the plurality of mounting portions 25 of the cartridge 20 are arranged, that is, in a direction parallel to the X-axis direction, and an idling rotation (using the roller shaft 34 as a rotation axis). It can be rotated by idling rotation or rotation motor. Here, idling rotation means that the roller 30 is rotated by the friction or inertia of the outer circumferential surface of the roller 30, for example, the roller 30 is not rotated by the power of a motor (not shown).

As shown in FIG. 1, the roller 30 may be elongated in the X-axis so as to be in contact with the flat panel display cells arranged side by side. The rollers corresponding to a single one or two or three of them may be formed to be spaced apart from each other along the X axis, and may be in contact with the flat panel display cells arranged side by side.

Alternatively, the length of the roller 30 may be formed in contact with one or two or three flat panel display cells. In this case, the reinforcement sealant can be supplied to the flat panel display cell while the roller 30 and the mounting portion 25 are relatively moved.

Since the flat panel display cell 100 mounted on the mounting unit 25 is parallel to the YZ plane and the roller shaft 34 is parallel to the X axis, the flat panel display cell 100 and the roller shaft 34 are perpendicular to each other.

Meanwhile, although not specifically illustrated, the roller shaft 34 may approach or be spaced apart from the first to third edges 107, 108, and 109 of the flat panel display cell 100 mounted on the mounting portion 25. It can be configured to be movable in the axial direction.

1 and 2, the roller 30 does not move in the horizontal direction, but instead the cartridge 20 and the plurality of flat panel display cells 100 mounted thereon are horizontal to the roller 30. In particular, by moving in the direction indicated by the arrow D1, the roller 30 is configured to roll in contact with the first to third edges 107, 108, and 109 of the flat panel display cell 100. However, although not shown in the drawings, the present invention includes another embodiment in which the roller is moved in the horizontal direction instead of the cartridge to apply the reinforcement sealant to the outer periphery of the flat display cell.

When the reinforcement sealant 120 is supplied to the outer circumferential surface of the roller 30 which rotates at a high speed, a large amount of the reinforcement sealant 120 may bounce off from the outer circumferential surface of the roller 30.

The reinforcement sealant 120 scattered to the surroundings causes waste of the reinforcement sealant 120 by itself, and the scattered reinforcement sealant 120 is buried in the flat panel display cell 100 or penetrates into the surrounding devices, thereby preventing work defects. May result. To prevent this, the reinforcement sealant application device 10 includes a bracket 35 surrounding the outer circumferential surface of the roller 30 so that scattering of the reinforcement sealant 120 supplied to the roller 30 is suppressed. can do.

In addition, the reinforcement sealant application device 10 may include a doctor knife 40 that limits the thickness of the reinforcement sealant 120 stacked on the outer circumferential surface of the roller 30. Although the doctor knife 40 shown in FIG. 2 is fixedly supported at the lower end of the bracket 35, other configurations are possible, such as, for example, the configuration fixed to the roller shaft 34.

The doctor knife 40 is preferably disposed adjacent to the outer periphery of the flat panel display cell. In addition, the body of the doctor knife may extend in the longitudinal direction of the roller 30, that is, the X-axis direction. In addition, the tip of the doctor knife is spaced apart from the outer circumferential surface of the roller 30 at a small interval. Therefore, the reinforcement sealant 120 supplied to the outer circumferential surface of the roller 30 passes through the doctor knife 40 as the roller 30 rotates, and the thickness accumulated on the outer circumferential surface of the roller 30 is limited. Only the sealant 120 may be transferred to the first to third edges 107. 108 and 109 of the flat panel display cell 100.

The reinforcement sealant supply unit supplies the reinforcement sealant 120 to the outer circumferential surface of the roller 30.

 The reinforcement sealant supply unit supplies a reinforcement sealant for guiding the container 50 filled with the reinforcement sealant 120 and the reinforcement sealant 120 flowing out of the container 50 to the upper outer peripheral surface of the roller 30. The furnace 55 may be provided.

The reinforcement sealant 120 inside the container 50 flows out through the reinforcement sealant outlet slit 52 to the reinforcement sealant supply path 55. The reinforcement sealant outlet slit 52 is opened and closed according to the start and end of the reinforcement sealant 120 application. The distal end of the reinforcement sealant supply passage 55 may extend into the bracket 35 so that the reinforcement sealant 120 does not splash from the outer circumferential surface of the roller 30 to be scattered around.

Although not shown, the reinforcement sealant supply unit may supply the reinforcement sealant 120 to the outer circumferential surface of the roller through the inside of the roller 30.

According to the present invention, since the reinforcement sealant is supplied in a state in which the roller is adhered to the flat panel display cell, the reinforcement sealant does not escape to the outside.

Hereinafter, an operation of applying the reinforcement sealant 120 to the first to third edges 107, 108, and 109 of the cell 100 on the flat panel display will be described in sequence. First, a plurality of flat panel display cells 100 are mounted on the plurality of mounting portions 25 of the cartridge 20 so that the first edge 107 faces upward. Thereafter, the roller 30 descends until the outer circumferential surface of the roller 30 contacts the first edge 107, the reinforcement sealant 120 is discharged from the container 50, and then through the reinforcement sealant supply path 55. It is supplied to the upper outer peripheral surface of the roller 30. When the cartridge holder 15 moves in the direction of the arrow D1, the reinforcement sealant 120 coated on the outer circumferential surface of the roller 30 is pressed by the roller 30 being rotated in the direction of the arrow D2 by friction with the first edge 107. Is moved to the first edge 107 of the display cell 100. Specifically, the reinforcement sealant 120 transferred to the first edge 107 is filled in the gap 110 defined by the pair of panels 101 and 102 and the main sealant 105 adhering them.

After the reinforcement sealant 120 is applied to the first corner 107, the roller 30 is spaced apart from the first corner 107, and the cartridge shaft 22 is rotated 90 degrees clockwise along the D3 arrow. The second corner 108 faces upward, and the reinforcing sealant 120 may be applied to the second corner 108 in the same manner as the reinforcing sealant 120 is applied to the first corner 107. After the reinforcement sealant 120 is applied to the second corner 108, the roller 30 is spaced apart from the second corner 108, and the cartridge shaft 22 is rotated by 180 degrees counterclockwise along the D3 arrow. The third corner 109 faces upward, and the reinforcing sealant 120 is applied to the third corner 109 in the same manner as the reinforcing sealant 120 is applied to the first and second corners 107 and 108. can do. The reinforcement sealant 120 applied to the first to third corners 107, 108, and 109 is cured by ultraviolet (UV) irradiation.

4 is a cross-sectional view illustrating a modification of FIG. 3. The reinforcement cylinder application device 10 of the present invention may be provided with the roller 32 shown in FIG. 4 in place of the roller 30 shown in FIGS. 2 and 3. Referring to FIG. 4, the outer circumferential groove 33 facing the gap 110 formed between the pair of panels 101 and 102 and the main sealant 105 adhering to the outer circumferential surface of the roller 32 is formed. . The gap 110 and the corresponding outer circumferential groove 33 are aligned on one virtual straight line parallel to the Z axis.

The reinforcement sealant 120 supplied to the outer circumferential surface of the roller 32 through the reinforcement sealant supply passage 55 (see FIG. 2) is reinforced in the outer circumferential groove 33 by the doctor knife 40 (see FIG. 2). Only the sealant 120 remains and the reinforcement sealant 120 applied to the outer peripheral surface of the roller other than the sealant 120 may be removed. Then, when the lower end of the roller 32 is pressed against the first to third corners 107. 108. 109 by friction, the gap between the reinforcing sealant 120 filled in the outer circumferential groove 33 and the outer circumferential groove 33 is encountered. Transferred to 110 and filled.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the scope of the present invention. Therefore, the true scope of protection of the present invention should be defined only by the appended claims.

10: reinforcement sealant applying device 15: cartridge holder
20: rotary cartridge 30: roller
35: bracket 40: doctor knife
50: container 55: reinforcement sealant supply passage
100: flat panel display cell 120: reinforcing sealant

Claims (5)

A cartridge on which at least one flat panel display cell is mounted;
A roller for applying a reinforcement sealant in a liquid state to the outer periphery of the flat panel display cell by rotating in contact with the outer periphery of the flat panel display cell; And
And a reinforcement sealant supply unit for supplying said reinforcement sealant to an outer circumferential surface of said roller. The method according to claim 1,
And a bracket surrounding the outer circumferential surface of the roller so that scattering of the reinforcing sealant supplied to the roller is suppressed. The method according to claim 1,
And a doctor knife for controlling the thickness of the reinforcing sealant supplied from the reinforcing sealant supply unit and stacked on the outer circumferential surface of the roller.
The body of the doctor knife is formed adjacent to the outer periphery of the flat panel display cell extending in the longitudinal direction of the roller, the end of the doctor knife is characterized in that spaced apart from the outer peripheral surface of the roller by the thickness of the reinforcing sealant Reinforcement sealant coating device for flat panel display cells. The method according to claim 1,
The flat panel display cell is provided with a pair of panels facing each other and bonded to the main sealant,
The outer periphery of the pair of panels forms a gap spaced apart by the thickness of the main sealant,
An outer circumferential groove is formed on an outer circumferential surface of the roller at a position corresponding to the gap,
The reinforcement sealant is a reinforcement sealant coating device of the flat panel display cell, characterized in that configured to be supplied to the gap between the outer peripheral groove from the outer peripheral groove when the outer peripheral surface of the roller is in contact with the outer peripheral surface of the flat display cell. The method according to any one of claims 1 to 4,
And the cartridge and the flat panel display cell mounted thereon are moved in a horizontal direction with respect to the roller so that the roller is rotated in contact with the outer periphery of the flat panel display cell.
KR1020110141491A 2011-12-23 2011-12-23 Apparatus for applying additional sealant in flat panel display cell KR20130073568A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020110141491A KR20130073568A (en) 2011-12-23 2011-12-23 Apparatus for applying additional sealant in flat panel display cell

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020110141491A KR20130073568A (en) 2011-12-23 2011-12-23 Apparatus for applying additional sealant in flat panel display cell

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KR20130073568A true KR20130073568A (en) 2013-07-03

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200106973A (en) 2018-02-02 2020-09-15 아우토리브 디벨롭먼트 아베 Seat belt device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200106973A (en) 2018-02-02 2020-09-15 아우토리브 디벨롭먼트 아베 Seat belt device

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