KR101271520B1 - liquid crystal dispence apparatus - Google Patents

Abstract

The present invention relates to a liquid crystal dispense device, and more particularly, to a head of a liquid crystal dispense device for discharging a liquid crystal in a liquid crystal storage container onto a substrate in a liquid crystal dropping process for manufacturing a liquid crystal display device.

More particularly, the present invention provides a liquid crystal dispenser having a holder on which a liquid crystal storage container is mounted and a head provided with a nozzle for discharging liquid crystal in the liquid crystal storage container, wherein the head connects the liquid crystal storage container to the nozzle. A tube; A filter housing attached to the tube; It is fixed to one side of the holder characterized in that it comprises a clamp means for fixing the filter housing.

As a result, the head of the liquid crystal dispensing apparatus according to the present invention has the effect of stably fixing the tube and the filter housing. In particular, the lamp means proposed in the present invention exhibits an operation principle similar to the forceps, and is very simple and convenient to use, and also solves the breakage and the deterioration of the filtering ability through the stable fixing of the tube including the filter housing.

Description

Liquid crystal dispensing apparatus

1 is a schematic perspective view of a general dispense equipment.

Figure 2 is a detailed perspective view of a typical dispense equipment head.

Figure 3 is an exploded perspective view of the head of the dispense equipment according to the present invention.

Figure 4 is an exploded perspective view of the clamp means according to the invention.

Figure 5a to 5c is a process photograph showing a filter housing fixing method according to the present invention, respectively.

<Description of the symbols for the main parts of the drawings>

100: head 112: drive unit

122: discharge unit 124: nozzle

130: holder 132: support

134: gripper 140: tube

142: filter housing 150: clamp means

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid crystal dispence apparatus. More particularly, the present invention relates to a liquid crystal dropping process for manufacturing a liquid crystal display device (LCD). It relates to a head of liquid crystal dispense equipment to be discharged onto.

Liquid crystal display device (LCD), which is widely used in TVs and monitors due to its high contrast ratio, is advantageous for moving image display and has high optical anisotropy and polarization. Applied principle of image realization shows that the liquid crystal layer is face-bonded between the first and second substrates having an array layer for liquid crystal driving and a color filter layer for color realization. A liquid crystal panel is an essential component, and the transmittance is realized by changing the arrangement direction of the liquid crystal molecules by an electric field in the liquid crystal panel. In addition, the transmittance difference of the liquid crystal panel is displayed as various images by reflecting the sum of the tones of the color filter through the light of the back light placed on the rear surface.

On the other hand, the general manufacturing process of the liquid crystal display device includes a substrate manufacturing process for obtaining the first and second substrates, a cell process in which both substrates are bonded together with a liquid crystal layer interposed therebetween, and a liquid crystal panel and a backlight. It can be divided into a module (module) process to integrate.

In addition, the dual substrate manufacturing process and the cell process are generally performed on the first and second large area substrates (bare or mother glass) in which a plurality of cell regions are divided by positions in order to reduce the process or improve the yield. In the substrate manufacturing process, thin film deposition, photo-lithography, and etching are repeated several times, and the array layer and the color filter layer are applied to each cell region of the first and second large area substrates. In the cell process, a seal pattern for bonding to each cell region of either the first or the second large area substrate is formed, and then the two substrates are face-to-face bonded through the liquid crystal layer, and then, for each cell region. By cutting, a plurality of liquid crystal panels are obtained.

At this time, there are two main methods for interposing the liquid crystal layer between the first and second large area substrates in the cell process. After incorporating the first and second large area substrates, a liquid crystal is injected by forming a vacuum therebetween. The liquid crystal injection method and the liquid crystal dropping method in which the liquid crystal is dropped onto any one of the first and second large area substrates and then bonded together.

In the latter liquid crystal dropping method, a device for dropping liquid crystals on an arbitrary large area substrate is a liquid crystal dispense device, and a schematic perspective view is shown in FIG.

As can be seen, a general liquid crystal dispensing device includes a stage 10 on which a large-area substrate 2 (hereinafter referred to as substrate 2) is seated, and an upper portion of the substrate 2 spaced apart from the stage 10 by a predetermined distance. One or more column sliders 22 arranged side by side and arranged along the longitudinal direction of each of these column sliders 22 and a plurality of heads dead 32 are discharged. In addition, the dual stage 10 is slidable in the direction orthogonal to the column slider 22, that is, in the X-axis direction on the drawing, and the plurality of heads 32 mounted on the column sliders 22 are corresponding column sliders ( 22 is slidable in the Y-axis direction along the longitudinal direction of the drawing. When the substrate 2 is seated on the stage 10, the liquid crystal discharge operation of the head 32 and the X of the stage 10 and the head 32 are performed. As a result, the Y-axis sliding proceeds properly to drop the liquid crystal droplets according to a predetermined rule for each cell region.

To this end, the head 32 of a general liquid crystal dispensing apparatus provides a nozzle for discharging liquid crystal in a state where a liquid crystal storage container in which liquid crystal is stored is mounted. In addition, the driving unit 52 connected to the column slider and the driving unit 52 may be divided into a discharge unit 62 in which a liquid crystal storage container B is mounted and a nozzle 64 is provided. The dual drive unit 52 is a part that slides the entire head 32 by a linear motor of the column slider, and a servo motor or the like is mounted to raise and lower the discharge unit 62. have. In addition, the discharge unit 62 has a holder 70 for mounting the liquid crystal storage container B, a volume motor for extracting the liquid crystal in the liquid crystal storage container B by a predetermined amount, and the extracted liquid crystal to the nozzle 64. A discharge motor for discharging is provided, and the liquid crystal storage container B mounted on the holder 70 is connected to the nozzle 64 via the tube 80, and at a suitable point of the tube 80, the filter housing ( The filter housing 82 is provided with a filter for filtering out residual impurities and bubbles in the liquid crystal. In this case, reference numeral 72 denotes a support end of the holder 70 supporting the liquid crystal storage container B, and 74 denotes a gripper that is open at one side to surround and fix the middle portion of the liquid crystal storage container B.

However, the above-described general liquid crystal dispensing equipment shows a problem that the tube 80 and the filter housing 82 attached thereto are shaken or bumped during the process.

That is, the head 32 of the general liquid crystal dispensing equipment is exposed to vibrations such as shaking up and down due to frequent lifting and sliding movements during the process, and the tube 80 and the filter housing 82 that are hanged without any fixed structure are also vibrated. It is frequently observed to swing and hit the head 32 unprotected, the damage of the filter housing 82 and the head 32 in the case of severe deterioration of the filtering ability accordingly is severe The phenomenon is caused.

Accordingly, the present invention has been made to solve the above problems, the object of the present invention is to provide a stable fixing structure for the tube provided in the head of the liquid crystal dispensing equipment connecting the liquid crystal storage container and the nozzle and the filter housing attached thereto. In particular, in consideration of workability, a simpler and more convenient way to fix the tube and filter housing is proposed.

In order to achieve the above object, the present invention is a liquid crystal dispensing equipment having a holder equipped with a liquid crystal storage container and a nozzle provided with a nozzle for discharging the liquid crystal in the liquid crystal storage container, wherein the head is the liquid crystal storage container. A tube connecting the nozzle with the nozzle; A filter housing attached to the tube; It is fixedly mounted to one side of the holder provides a liquid crystal dispensing equipment comprising a clamp means for fixing the filter housing.

At this time, the holder, and the receiving end is seated the liquid crystal storage container; And a gripper for wrapping and fixing an intermediate point of the liquid crystal storage container, wherein the clamp means is fixed to one side of the support end. And in this case, the clamp means, and the first clamping bar in close contact with the side of the support end; A second clamping bar facing the first clamping bar horizontally; A hinge connecting an intermediate point of the first and second clamping bars; It characterized in that it comprises a spring interposed between one end in the same direction of the first and second clamping bar to exert elasticity so that the distance between the one end.

Hereinafter, the present invention will be described in more detail with reference to the drawings.

3 is an exploded perspective view of the head 100 of the liquid crystal dispensing equipment according to the present invention.

As shown, the head 100 according to the present invention includes a drive unit 112 slidably coupled to a column slider of a liquid crystal dispensing equipment, and a liquid crystal storage container B coupled up and down to the drive unit 112. It may be divided into a holder 130 to be mounted and a discharge unit 122 for providing a nozzle 124 for discharging the liquid crystal in the liquid crystal storage container (B).

In this case, the driving unit 112 slides the entire head 100 by the linear motor of the column slider, and a lifting means such as a servo motor is mounted to elevate the discharge unit 122 up and down. The discharge unit 122 includes a holder 130 and a nozzle 124, a volume motor for extracting a liquid crystal in the liquid crystal storage container B by a predetermined amount, and a discharge motor for discharging the extracted liquid crystal to the nozzle 124. The liquid crystal in the liquid crystal storage container B is dispensed by a predetermined amount to the substrate at the bottom thereof through the nozzle 124. At this time, in order to supply the liquid crystal of the liquid crystal storage container (B) to the nozzle 124, the liquid crystal storage container (B) and the nozzle 124 are connected to the tube 140, the filter 140 is built in the appropriate point of the tube 140 The filter housing 142 is interposed to remove impurities and bubbles in the liquid crystal.

Meanwhile, the holder 130 of the discharge unit 122 in which the liquid crystal storage container B is mounted wraps and secures the intermediate point between the support end 132 on which the liquid crystal storage container B is seated and the liquid crystal storage container B. It may be made of a gripper (134), the present invention in particular provides a clamp means 150 for holding and fixing the filter housing 142 in a state attached to the holder 130, which is supported as shown Stage 132 may represent the shape of the forceps attached to one side.

More specifically, Figure 4 is an exploded perspective view showing in detail an example of the clamp means 150 is provided in the head 100 of the liquid crystal dispensing equipment according to the present invention to secure the filter housing 142, Figure 3 When combined with, the first clamping bar 152 tightly fixed to one side of the support end 132 of the holder 130 and horizontally coupled with a predetermined interval through the hinge axis 154 at the intermediate point thereof And a second clamping bar 156 to be formed.

Thus, the distance between one end of the first and second clamping bars 152 and 156 facing the same direction is far or narrow opposite to the change of the gap between the other ends of the first and second clamping bars 152 and 156. A spring 158 exerting elasticity is interposed between the other ends of the clamping bars 152 and 156.

As a result, the clamping means 150 shows a state in which one ends of the first and second clamping bars 152 and 156 are in close contact with each other, but the other end of the second clamping bar 156 is in the other end direction of the first clamping bar 152. When the other ends of the first and second clamping bars 152 and 156 are brought closer to each other, the spacing between the ends of the first and second clamping bars 152 and 156 is farther from each other, and at the same time the first ends of the first and second clamping bars 152 and 156 are separated by the spring 158. And the restoring force of the second clamping bars 152 and 156 being closer to each other.

Accordingly, the clamp means 150 according to the present invention bites and fixes the filter housing 142 between one end of the first and second clamping bars 152 and 156.

5A through 5C are process photographs showing a method of fixing the filter housing 150 by using the above-described clamping means 150. One side of the supporting end 132 of the holder 130 of the head 100 is illustrated. The clamp means 150 attached to the first and second clamping bars 152 and 156 exhibits a state such as 5a in which one end of the first and second clamping bars 152 and 156 are closely attached to each other.

Subsequently, the operator presses the other end of the second clamping bar 156 to open the gap between one end of the first and second clamping bars 152 and 156 as shown in FIG. 5B, and then inserts the filter housing 142 therebetween. When the pressure of the bar 156 is released, the filter housing 142 is clamped between the ends of the first and second clamping bars 152 and 156 as shown in FIG. 5C by the elasticity of the spring (see 158 of FIG. 4).

As a result, the head of the liquid crystal dispensing apparatus according to the present invention has the effect of stably fixing the tube and the filter housing.

In particular, the lamp means proposed in the present invention exhibits an operation principle similar to the forceps, and is very simple and convenient to use, and also solves the breakage and the deterioration of the filtering ability through the stable fixing of the tube including the filter housing.

Claims (4)

A liquid crystal dispensing apparatus having a holder on which a liquid crystal storage container is mounted and a head provided with a nozzle through which a liquid crystal is discharged in the liquid crystal storage container. The head is A driving unit coupled to the column slider to perform a sliding operation, and coupled to the holder to move up and down; A tube connecting the liquid crystal storage container and the nozzle; A filter housing attached to the tube; Clamp means fixedly mounted to one side of the holder to fix the filter housing. Liquid crystal dispensing equipment comprising a. The method of claim 1, The holder, A support end on which the liquid crystal storage container is seated; Liquid crystal dispensing equipment comprising a gripper for wrapping and fixing the intermediate point of the liquid crystal storage container. 3. The method of claim 2, The clamp means is a liquid crystal dispensing equipment fixed to one side of the base. The method of claim 3, The clamp means, A first clamping bar in close contact with one side of the support end; A second clamping bar facing the first clamping bar horizontally; A hinge connecting an intermediate point of the first and second clamping bars; A spring interposed between one ends in the same direction of the first and second clamping bars to exert elasticity such that the distance between the one ends is farther away Liquid crystal dispensing equipment comprising a.

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