TW200800414A - Paste dispenser and method for dispensing a fixed amount of paste in a uniform pattern - Google Patents

Abstract

There is provided a method for dispensing a fixed amount of paste in a uniform pattern on a substrate, including setting groups of parameters which are sequentially selected, each group comprising a reference number of patterns and paste-dispensing parameters which are applied to the reference number of patterns, dispensing the fixed amount of paste according to an applied paste-dispensing parameters, and applying paste-dispensing parameters belonging to a next group of parameters when the reference number of patterns belonging to a current group of parameters is accomplished, and dispensing the fixed amount of paste according to the paste-dispensing parameters belonging to the next group of parameters. The preset invention provides an advantage that the fixed amount of paste is dispensed in the given pattern on the substrate by applying different air pressure to the syringe according to how much of paste remains in the syringe.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dispenser for coating a quantitative colloid on a substrate in a uniform hook pattern, and a method for coating a quantitative colloid on a substrate in a uniform pattern. [Prior Art] In terms of the same screen size, a liquid crystal display (LCD) uses very little power compared to a bulky cathode ray tube (CRT), has a relatively small volume, and has excellent image quality. LCD has a place in the market for computers, shipping wheels, overnight, test equipment, etc., and its importance to TV is increasing. A thin film transistor (TFT) LCD comprises a TFT array substrate and a color filter array substrate. The two are separated by 4, such as m, and form a sandwich of the liquid crystal layer. A perimeter seal is shown around the viewing area to bond the two substrates together and to prevent moisture and contamination from entering the LC liquid. The dispenser applies a sealant for bonding the two substrates to one of the substrates in a given pattern. The dispenser includes a platform for placing the substrate, a soil cloth item for the nozzle of the coating body, a support frame for the money picking head, and a control head for controlling the movement of the motor.

4TOP-EN/07007TW ; OP07H0002-TW 6 200800414 Control unit for framing and controlling the motor to move the coating head Next, a syringe containing a gel, which is connected to the nozzle, is attached to the coating head. The relative distance between the two = the shape of the wire on the substrate, the shouting of the Wei plate and the nozzle, that is, when the glue is applied, the coating of the substrate along the direction of the frame is moved in the direction of the axis of the substrate. Lying pressure on the syringe connected to the nozzle

The mother liquid crystal panel which is composed of the lower ft substrate is divided into separate liquid corrugated panels. The case was formed on the upper board and the board of the child - on the substrate, with 2 boards and m boards. Therefore, the specification of the 'glue pattern' varies depending on the liquid crystal surface ‘=. The glue _ is formed on the substrate in much the same manner as the separated liquid crystal panel separated from the mother liquid crystal panel. The glue pattern is formed to supply the glue red control fresh element. The glue pattern, width and cross-sectional area are the key parameters for uniformly forming the glue pattern on the substrate. Such parameters, such as the relative speed of the coating on the substrate, the coating of the substrate (4) and the gas (four), the phase control

4TOP-EN/07007TW ; OP07H0002-TW 7 200800414 System _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ The glue pattern was taken by the camera and moved in and out. The cross-sectional area of the glue pattern is calculated by measuring the change in the weight of the syringe of the bad cell and calculating the weight of the injection. The area of the egg case can be calculated by applying a laser beam to the glue pattern. " Knowing the point of relying on the understanding of the pressure to apply pressure on: more than a small: a fixed amount of glue coated onto the substrate 'regardless of the syringe _ ... Bai Zhili controller support - coating job has multiple pipelines, The plural bureaucrats have their own assigned reference air pressures. The operator's image pressure controls the crying, each pipe in the sampling mode, to apply a proportional air pressure based on the amount of glue remaining in the syringe. This is the so-called "sampling process", when the coating conditions change, or when the gas is reset, such as with Jingjing! I, the sampling process is performed. Figure 3 is a description of the dust controller implementation Flow chart of the sampling process. Air pressure, system, has two outlets, respectively connected to two syringes. One outlet is connected by pipe to the release of the If H outlet by a pipe connected to the empty injector (S301). Apply air to each - note

4TOP-EN/07007TW ; OP07H0002-TW 8 200800414 / Time required for air in the illuminating state / Two air to each - _ to - 丄 and = = =: Between 'Determining the remaining glue in each syringe: ΐ ΐ Apply to the note Saved in the gas machine "for future control == ^=__ (s3G5). According to the = relay knowledge, assign each pipe to the glory. Therefore, the amount of glue remaining in every 5 丨 syringe. The problem with conventional air pressure controllers is that ί== is too large. As a result, the air pressure controller cannot: 々 剩余 剩余 residual glue $ accurately control the pressure. The operator sets the pressure value of the remaining glue amount in the syringe of the parent side I (S307). Appropriate for the pressure value of the remaining glue in the = emitter, the experience of the operator is obtained and transmitted. The barometric pressure value is stored in the gas controller (S3〇9). The heart begins to coat the impurity (S3 (1). The air pressure control is applied to the pressure value assigned to the first 笞C to the main target, so that the colloid is applied to the substrate in a given pattern (S313), at the coating colloid stop point, Measure the time required to purge the air from the syringe to a level of yoke, for example, after forming a glue pattern, to form a point in the path below the next glue pattern - the time of the slit. By comparing the measurement time

4TOP-EN/07007TW ; OP07H0002-TW 200800414 Injection crying ^ and ^ force ^ gas to empty the syringe to a predetermined degree and from the amount of glue ° ^ 15). iWa1 'measured material _ indeed the current remaining 叮 Ml on when the remaining glue amount is reduced by five-point, the current pipe. When the pipe changes, the air pressure controller applies the pressure of the main official to the injector. After the pattern ts is finished 3, 9? into the glue pattern, the 'dispenser continues to form the lower-gel 4Γ f1 knows the glue machine's measurement air is applied to each-filled gel f to the predetermined level, then From each syringe to clear out the time of the touch, the phase # time-consuming and extremely _ _ mine to clear the air from the injection, in the coating process: the amount of glue. Air leakage will occur due to the connection of each syringe to the dirty soil. The scale unit is too large, so that the thermal method precisely controls the air pressure based on the amount of syringe. SUMMARY OF THE INVENTION Therefore, the present invention is directed to setting the time for coating a colloidal parameter when changing the size of an egg.

4TOP-EN/07007TW; OP07H0002-TW 10 200800414 Another object of the present invention is to apply a suitable gas pressure to the syringe to apply a fixed amount of colloid through a nozzle connected to the syringe. According to an aspect of the present invention, there is provided a method of coating a quantitative gel on a substrate in a uniform pattern, the method comprising: setting a parameter set sequentially selected: the group comprising a reference quantity pattern and a coating colloid applied to the reference quantity pattern Parameter; according to the -coating colloid parameter, coating the quantitative colloid; and when the current parameter group of the doping amount of acid is completed, the coating parameter of the next parameter group, and according to the coating colloid of the next parameter group The number is coated with a quantitative colloid. "

According to another aspect of the present invention, there is provided a dispensing machine for coating a certain amount of a substrate onto a substrate, comprising: a coating head for coating a colloid in a syringe via a syringe--nozzle; a unit for driving any one of the coating head and the platform on which the substrate is placed; a control unit, a given glue pattern, transmitting a control signal to the coating and driving the mother's : - the air pressure control unit, applying the clock-collector that belongs to the -subtraction group and the mismatched coating; and == unit 'based on the coating colloid parameters of the parameter group selected in sequence, the control sequence - setting to the control element And control the early sputum. The above described objects, features, aspects and advantages of the present invention are set forth in the accompanying drawings.

4 TOP-EN/07007TW; OP07H0002-TW 200800414 [Embodiment] Example: The fineness of the sample (4) The touch-off and the description of the accompanying handle - H is a schematic view of an embodiment of the dispenser according to the present invention. According to the transfer machine of the present invention, as shown in Fig. 1, the glue is coated with the == nozzle 21, the drive unit 31, = and k, and the main control unit 4 and v, and the control signal is added to 7 With 91 and coating head 2 〇. The first substrate 31, 32, the substrate 1 is placed on the platform 50, and the platform 5 is moved in the direction of χ_::: or the axis, and the carrier units 31 and 32 are moved in the direction of the i. The unit 70 can be carried along the W π axis, carrying a few 31 and 32 in the direction of γ钲. In addition, the carrier unit 31 in the direction of the x-axis of the shaft is provided by the guide 70. The movement in the X-axis direction is by the ball screw 58 by the moving (LM) guide. , : τ motion changes into linear motion The z that can move in the X-X direction carries the unit 7〇 in the X-axis direction. To the carrier unit 91, the line providing the carrier unit % in the X-axis direction is attached to the carrier unit 91 by being provided on the moving block 93, which is operated by the z-axis. Syringe 25 even J built a plant early 91 and along the 厶z〆

4TOP-EN/07007TW ; OP07H0002-TW 12 200800414 Directional movement of the rod: Lower = hunting by the ball screw that converts the rotary motion into linear motion and the C coating head 20 passes through the linear motion guide (not shown) and through the nozzle The syringe 25 for coating the rotating body is applied to the colloid of the syringe 25, and the direction of the gel is in the direction of the x-axis. The material (4) can be moved on the γ axis and the D 5G is movable. still. The 25 Hi unit 43 applies the coating quantitative colloid to the syringe moving element 40 according to the selected parameter group, respectively: drive:: Ϊ =, elements 31, 32, 7 〇 and 91, and transfer 疋 遽The gas castle controls early 43. The milk pressure control fresh element 43 has a Wei. Will, the face is sent to each - pipe. The air pressure control unit 43 ^ and = $ in the current residual glue amount of the pipe, and the seam main control unit 70 40 controls the linearity of the moving coating head 2 in the X-axis direction 2, the moving platform 50 in the x-axis direction The motor and the moving block 93 moving in the ^axis direction. Square mark "D", connected to the connection! in

4TOP-EN/07007TW; OP07H0002-TW 13 200800414 The main control unit 4〇 contains a computer with a memory storage device 41, and the control program and the coating parameters are bribed in the neon 41 towel to include the monitor, and coated A list of colloidal parameter groups is displayed on the monitor. ^ The brain system is connected to the air pressure control unit. "" Private

The main control unit 4 applies the coating colloid parameters belonging to the next parameter array after the completion of the current reference parameter _ (a refer_ number of patterns). The reference number pattern refers to the cumulative amount of the pattern to be formed on the substrate. Figure 2 is a flow diagram of an embodiment of a method of coating a quantitative colloid on a substrate in a uniform pattern, in accordance with the present invention. The method comprises setting a parameter group for sequential application, the parent group includes a coating colloid parameter and a reference quantity pattern of applying the coating colloid parameter; coating the quantitative colloid according to the coating colloid parameter of the currently applied parameter group; and, when present After the reference quantity pattern of the applied parameter set is formed, the quantitative colloid is coated according to the coating colloid parameter belonging to the next parameter group. More specifically, a glue-filled syringe 25 is connected to the air pressure control unit 43 (S201). Set the parameter group to be applied sequentially. Each group contains a reference number pattern.

4TOP-EN/07007TW ; OP07H0002-TW 200800414 Fig.: On the monitor of the air pressure control unit 40 The parent-group record contains the reference quantity _, and the GU to ^^ table. Each group of parameters is shown in the figure; the number =: is applied sequentially from group number 0 (GroupN〇 〇). Table 2 Figure refers to the cumulative amount of patterns that will be formed on the substrate. In the first column of the eve, the reference quantity pattern indicates that the target quantity will be formed in the sample. The reference quantity pattern is inversely proportional to the injection amount of glue. (2) The other parameters of the crane are coated with the parameters, and the paste is applied. The speed of the column of the quantitative colloid is the coating speed. The third column "R" refers to the radius of curvature, and the fourth column "HJ pressure is moved in the direction of changing the direction of the semi-wei coating." Refers to the gas trainer applied to the first coating head. The pressure of the column H_2 refers to the pressure applied to the second coating head. The sixth column "H_l_ offset" refers to the distance between the coating and the substrate, plus Ji or subtracted distance to set the appropriate distance between the coating head and the substrate. Delayed fingers form a given pattern to change In the direction, the coating head must wait for a long day to resume the coating of the quantitative colloid, for example, at four points of the quadrilateral pattern. There are four retardation parameters 1 to 4 in the table to form a given quadrilateral pattern, for example. The pattern "RO.S" refers to the period in which the coating colloid is stopped, that is, the period in which the coating head moves in a curved shape to change the moving direction. There are four FOSs 1 to 4' in the table to form a given pattern, such as a quadrilateral pattern. .

4TOP-EN/07007TW ; OP07H0002-TW 15 200800414 Then, it is determined whether the parameter groups are sequentially selected (S205). When the application parameter group is not selected in order, the predetermined parameter group is applied (S221). The coating of the gel (3223) is started according to the set of parameters applied.

^ When the application parameter group is selected in sequence, the coating colloid parameters of the first set of parameters are applied, for example, the group number 所示 shown in the table of Fig. 4 until "1", a glue pattern is formed on the substrate. The cloth is dosed until the last 芩 array is applied, such as the coating colloidal parameters of group number 14 as shown in the table of Figure 4. The coating colloid parameters for each group are applied from the left column. Coating head / coating according to the application Lai parameters, coating quantitative Lai, in the rubber mold pattern (S209). ''Check whether all the glue on the substrate is formed, or the second glue in the syringe, = no use (S211). When on the substrate If all the glue patterns have been formed or the colloid contained in the syringe has been used up, the coating of the gel is finished, and the sub-process is carried out for the next process, for example, another substrate is placed on the platform, and all the glue patterns are not formed. Finished, or the colloid of ^3 is not used up, but the reference quantity pattern has been completed, and the _ a rubber pattern formed on the ' is applied to the second group, ie group = coating, body parameter (S207). Continue to apply the coating glue of the group number to stop (8) 09 f in the group 5 tiger 1 tea test quantity pattern "2〇00" is completed == whether the gel containing is used up (10) 1). When the less wood on the substrate has been formed, or the glue contained in the syringe has been used up, the end is over.

4TOP-EN/07007TW ; OP07H0002-TW 16 200800414 Apply the gel and proceed to the next process, such as placing another substrate on the platform or replacing the existing syringe. When all the glue patterns on the substrate are not formed: or the colloid contained in the injection benefit is not used up, but the reference quantity pattern is completed, that is, 2000 rubber patterns are accumulated on the substrate, and the application belongs to the third group, that is, the number of groups 2 Coating colloidal parameters (S213). This is repeated with the coating process. & As shown in the flowchart, the steps are performed periodically. The glue pattern is completed, or the gel contained in the injection shaft is == finished. However, the main control unit of the coating gel is controlled according to a given glue _: determines whether the formation of all the eggs on the substrate is completed, or whether the injection of i3 = body ί is unsuccessful. - The counter calculates the number of patterns formed on the substrate: the number of patterns calculated by the check counter is used to determine whether the reference quantity pattern of the parent set of wheat numbers is completed. According to the invention, the syringe is dispensed by a root occupant and coated in a given pattern on the substrate; the amount 2 ® is used to check how much glue remains in the syringe. The saliva can be implemented without departing from the spirit of the invention or in a temporary form. Ke turns to 可以 can be a few ie = circumference: 7] refers to (four) then: ==: two she (four). Therefore, all falling into the patent, 围Weiyue

4TOP-EN/07007TW ; 〇P〇7H〇〇〇2-TW 200800414 , Boundary or _ 任何 任何 任何 任何 任何 任何 任何 任何 任何 任何 任何 任何 任何 任何 任何 任何 任何 任何 任何 任何 任何 任何 任何 任何 任何 任何 任何 任何 任何 任何 任何 任何 任何 任何 任何BRIEF DESCRIPTION OF THE DRAWINGS The drawings are provided to further understand the present invention, and the drawings & This drawing describes the embodiments of the present invention and is in conjunction with the specification to explain the principles of the invention.

^ 1 according to the present invention, the application of the quantitative colloid on the substrate coated with a colloid machine; the amount of colloid on the substrate Figure 2 according to the present invention in a uniform pattern coating method Figure 3: Process flow diagram • Figure 3 is a representation of a map performed by a conventional air pressure controller; and Figure 4 is an exemplary table displayed on a monitor of a pneumatic (four) unit.

[Description of main component symbols] 10 substrate 21 Nozzle 25 Syringe 32 γ-axis direction carrying unit 41 Memory 5 〇 Platform 70 Χ Axis direction carrying unit 93 Moving block 20 Coating head 23 Camera 31 Υ-axis direction carrying unit 40 Main control unit 43 Air pressure control unit 58 Ball screw 91 ζ axis direction carrier unit

4TOP-EN/07007TW

〇P〇7H〇〇〇2-TW 18

Claims (1)

200800414 X. Patent application scope: 1·,---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Applying the coating colloidal parameter of the tea number pattern; coating the scale according to the - _ _ parameter; and applying the pattern of the reference array when the reference parameter pattern of the current parameter group is completed Recording, silk machine T-contact to find the coated colloid wheat number, coating the quantitative colloid. The method of the item ===1, the towel, the reference number of rhymes refers to the number of patterns to be formed on the substrate. 3. The method of claim 1 or 2, wherein the coated colloidal parameter sentence contains a radius of curvature, in the radius of the radius, the number of turns is already, ^ L. The coating head is moved in an arc shape at a point of changing a coating direction; a coating is sprayed to cry, a bath is taken from the soil of the soil, a pressure is applied to a note =, and Adjusting the relative distance between the coating head and the substrate, the 4th ridge type is - (4) inspection--quantitatively--the dispensing machine on the substrate, the colloid coating head, the nozzle through the syringe, Coating one of the syringes - the drive unit's shape - the coating is shun-substrate, one of which is flat 4TOP-EN/07007TW; OP07H0002-TW 19 200800414 one of the sets; given glue _, surface fresh element transfer a control field to each of the coating head and the driving unit, the control unit comprising: coating the quantitative glue-milk control fresh element 'application-parameter group and suitable for the gas of the carcass And the main unit of the ΐ ,, according to the order of the selection of the parameter group of the knee body tenderness - coffee machine to Qing After quantitative heteroatom in a substrate, an array of the single primary QI iv iv - - membered poured cloth reference number of patterns completed earlier (iv) 7 " View - lower - na parameters Parameter touch the body. H terminology® inspection cloth—quantitative colloid in which the reference quantity will be formed on the substrate with the fingertips, and the point of coating the amount of colloid on a soil plate in a uniform pattern as described in item 4 or 5 The melter, the main control unit of the towel comprises: == executing the control program and the data stored therein; and displaying the reference quantity pattern and the number of coated colloidal teas belonging to the parameter sets in a table. 4TOP-EN/07007TW ; OP〇7H〇〇〇2.TW 20