TWI338671B - - Google Patents

Description

1338671 IX. Description of the invention: [Technical jaw region to which the invention pertains] The present invention relates to a kind of 'primary device and its control method, particularly a microfluid injection device and a control method thereof for use in injection of a trace amount of liquid crystal . [Prior Art]

The liquid crystal filling method of the early liquid crystal display is a vacuum liquid crystal injection method, which vacuums the liquid crystal layer of the liquid crystal panel of the liquid crystal display to draw the liquid crystal layer in a vacuum state into the liquid crystal, but the filling method is for a large-size liquid crystal panel. The time required for the liquid crystal panel to fill the liquid crystal is too long, and after the completion of the vacuum liquid crystal injection method, some liquid crystals cannot be injected into the liquid crystal layer of the liquid crystal panel, which causes a waste of part of the liquid crystal on the liquid crystal panel process. In addition, the liquid crystal panel process under the vacuum liquid crystal injection method is prone to cause excessive or too little liquid crystal injection amount, thereby causing the vacuum liquid crystal injection method to fail to maintain the quality of the liquid crystal panel, wherein excessive liquid crystal injection amount may cause uneven gravity of the liquid crystal panel ( The phenomenon of Gravity Mura), the display area of the liquid crystal panel may cause abundance and unevenness, and the liquid crystal injection amount is too small, which may cause color unevenness in the display area of the liquid crystal panel.

Based on the various shortcomings of the early vacuum liquid crystal injection method, the U.S. Patent No. 5,263,888 issued by U.S. Patent No. 5,263,888, issued by U.S. Patent No. 5,263,888, discloses a "Lee & 〇Manufacture 〇f Liquid Crystal Display panel" The new liquid crystal filling method 'is a drop-in liquid crystal injection method (〇ne Dr〇p FU1, 〇 DF), and a simple Ά 与 k k k 以 以 以 以 以 以 以 k k k k k k k k k k k k k k Drop 3K main injection method ((10)) will not increase the strength of the liquid crystal panel _ affect the process of good, eye cut | know the drop type liquid crystal injection a method (medical) according to its liquid crystal micro-output control method The knives are the way in which the piston drives the liquid crystal output and the method of controlling the back pressure and driving the quantitative liquid crystal output. T-door 2 = 4 Although the conventional drop-type liquid crystal injection method improves the cost of the liquid crystal panel process, k rises the control of the precision micro-liquid crystal, but its shortcomings exist. Among them, the way of the piston drive 1338671 n crystal output has greatly reduced the time required to complete the liquid crystal injection, as well as the amount of force, the waste of crystal, and the mastery - the amount of deviation of the specific micro liquid crystal injection, but the piston drive = liquid crystal output = The way of the whole process is greatly caused by the plugging of the crane, and the piston G-ring that causes long-term sliding is subject to wear and the piston (four) ring is grounded: the liquid crystal is subjected to sweating; when the back pressure is fixed by the air pressure control and the fixed opening is used _= Loss mode can also reduce the time required for the LCD panel process, and avoid the use of liquid crystal in the use of the wave, and the pressure control fixed back pressure and fixed valve opening time to drive the quantitative liquid crystal output = there will be grinding &amp In the case of smear, the gas dissolves in the liquid (9), which produces tiny emulsions, and the pressure control of the liquid crystal is difficult to meet the precision required for the micro liquid crystal injection. Therefore, how to propose a novel fluid injection device and its control method for the above problems can not only improve the shortcomings of the traditional drop-type liquid crystal injection method, but also improve the accuracy of the micro-liquid crystal injection 'both avoiding m to generate bubbles and being polluted. For a long time - it is the user's earnest expectation and the inventor's reduction of the inventor, and the inventor based on years of experience in research, development, and sales of liquid crystal panel related shame, thinking and improving ideas, poor The personal professional knowledge '(4) research design, special listening, finally researched a kind of micro-fluid injection device and its control method, can solve the above problems. SUMMARY OF THE INVENTION The main object of the present invention is to provide a microfluid injection device and a control method thereof, which use a helium weight to apply pressure to a fluid of a liquid level adjustment group, and utilize a liquid level. The group, the 9-magnet valve and its sensing module control the liquid level of the fluid, and drive the liquid level adjusting group to generate a head pressure of -m by the liquid level to meet the back pressure accuracy required for the microfluid injection. A secondary object of the invention is to provide a microfluid injection device and a control method thereof, which are capable of avoiding a pneumatic needle valve by using a -first container storage-fluid, and then - a second container - free liquid surface to remove air bubbles The fluid flowing out entrains the air bubbles. The present invention is a microfluid injection device and a control method thereof for improving the precision required for microfluid injection. The microfluid injection device comprises a first container 'a second ^^8671 (9), an electromagnetic chamber, a pneumatic width, a liquid level adjustment group - the first, the side: the control unit, the valve In the same way, the pneumatic valve is connected to the liquid level adjustment group and communicates, the liquid container is connected to the pneumatic through, the solenoid valve is connected to the pneumatic valve and the gas is (4), the control center is == the pneumatic needle is wide and the phase is controlled by the control method from the [container via the second = Gas and gas. Into the pneumatic system, and _ liquid level group - (four) block pairs; alone adjust the group flow force, and drive the fluid in the whole group of liquid f 4 night 4 weeks to apply pressure 1 财 杂 杂 — — — — — — — — Solenoid valve series of the feeling of the group of the continuation of the fruit control _ the opening of the fluid flow test adjustment group; and control solution 1: the movement of the needle valve actuation, let (10) ά u <, read to the private needle valve 'Drive the gas to make the body from the needle valve - the nozzle flows out. therefore

The accuracy of the injection and the effective promotion of the LCD.叫升U [Embodiment] In order to enable your review board to understand and understand the structural features and understanding of the present invention, it is necessary to implement the woven and detailed _, the description of the invention is a micro-fluid injection device And its control method, its control by the liquid-level adjustment group, - solenoid valve and - pneumatic valve, and - control single yarn - pneumatic needle valve ^ interval control, to improve the accuracy of micro-fluid injection. Therefore, it is used for the application of a small amount of liquid crystal injection, so as to effectively improve the accuracy of the crystal injection and avoid contamination of the device. In addition, the present invention further utilizes the -first container storage fluid, and - the second container temporarily stores the fluid flowing from the first container, and utilizes a free liquid level formed by the fluid in the second container to temporarily store the second container When the fluid is filtered, the bubbles generated when the fluid is stored in the first buffer are filtered, thereby preventing the liquid crystal layer of the liquid crystal panel from being trapped when the liquid crystal is injected. The following embodiments of the invention are described in terms of a preferred embodiment in which the fluid is liquid crystal. Referring to FIG. 2 is a schematic view showing the structure of the microfluid injection device of the present invention; as shown in the figure, the microfluid injection device 10 of the present invention is provided with a first container 12 and a second container 1338671 14 Ie, - pneumatic valve 18 unit 24, the first - night ~ night H group, - pneumatic needle 22 and - control 而 W and the same, the electric two disciple 14 and the same 'second container Η connected pneumatic level adjustment group 20 and phase ^ / receiving money ^ 18 shouting m eyes, gas touch 18 series connection element 24 series connection pneumatic '=: °: =: 22 and the same, single set - sensing module (10), sensing module 162 is !^: Store liquid crystal A electromagnetic room _ set - the first - photoelectric shielding sensor (8) two measurements; group == 2 °. Set ~^

Between the 22 sets - the mouth S S, a weight 210 and a liquid level adjusting element 212, the pneumatic needle is the structure of the first container 12; the first container 12 is °, again, the cover 122' a first gland 124, a first inner bottle 126, a first outer bottle 128 and a bottle body 13 〇; the first upper cover 122 is disposed above the first inner bottle 126, the first gland The I24 is disposed above the first upper cover 122. The first upper cover 122 is inserted into the first connecting member 132. The outer bottle 128 is disposed on the outer side of the first inner bottle 126, and the bottle fixing base 130 is disposed. On the outer side of the first outer bottle 128, a second connecting piece 134 is inserted into the bottom of the first inner bottle 126. Further, a first upper cover 122 is disposed between the first inner bottle 126 and the first inner bottle 126. . As shown in the third figure, it is a schematic structural view of the second container 14 of the present invention; the second container 14 is provided with a first upper cover 142, a second pressure cover 144, a second inner bottle 146 and a second outer portion. The second upper cover 142 is disposed above the second inner cover 146. The second upper cover 142 is disposed above the second upper cover 142, wherein the second upper cover 142 is inserted with a third connecting tube 15; The second outer bottle 148 is disposed on the outer side of the second inner bottle 146, wherein the bottom of the second inner bottle 146 is provided with a fourth connecting pipe 152' and the second inner bottle 146 is inserted into the side of the second outer bottle 146. A fifth connecting tube 154 is further disposed between the second upper cover 142 and the second inner bottle 146. As shown in the fourth figure, it is a schematic structural view of the liquid level adjusting group 20 of the present invention; the bottle body 200 of the liquid level adjusting group 20 is provided with a rubber film 202, a weight sliding base 204, a rubber column 206, and a 1338671 hollow. The stud 208, the counterweight 210 and the liquid level adjusting rod 212 are further provided with a lower pressing ring 214, an upper pressing ring 215, a first fixing member 216 and a second fixing member 218. A rubber film 202 is disposed on the liquid level adjusting group 20, a rubber film 202 is provided with a perforation 2022, a weight sliding base 204 is disposed on the rubber film 202, and the weight sliding base 2〇4 has a hollow channel. 2042, the weight sliding base 2Q4 is connected with the rubber film 202, and the hollow channel 2042 is connected to the through hole 2022, and the first fixing member 216 fixes the rubber film 202 to the bottom of the weight sliding base 204 via the through hole 2022 and the hollow channel 2042; The rubber column 206 is disposed above the hollow channel 2042 of the weight sliding base 204, and the weight 210 is placed above the weight sliding base 2〇4, and the hollow stud 208 is above the rubber column 206 to reach The watertight effect, the level adjustment rod 212 is above the weight sliding base 204. As shown in the fifth figure, the pressure ring 215 above the liquid level adjusting group is further provided with a shaft fixing seat 2152. The lower pressing ring 214 is disposed above the bottle body 200, and the lower pressing ring 214 is closed above the bottle body, and the weight sliding base is disposed above the lower pressing ring 214; the upper pressing ring 215 is disposed above the lower pressing ring 214 And forming an annular groove between the upper jaw 215 and the lower pressing ring 214, and clamping the weight sliding base 204', the second fixing member 218 is used for locking the upper pressing ring 215 and the lower pressing ring 2, liquid The position adjustment rod 212 is coupled to the upper pressure 215 via a fixed shaft 2122. The fluid in the liquid level adjustment group 2 is driven by the fluid in the cylinder 200 to drive the weight sliding base 2〇4 to move according to the fluid level change, further

The liquid level adjusting rod 212 connected to the weight sliding base 204 is actuated to act as two of the two photoelectric shielding sensors 164 and the second photoelectric shielding sensor 166. The other side of the first body 200 is a sixth connecting tube 219, and the bottom of the bottle body 220. Referring to the first figure, the first embodiment of the present invention, the microfluid injection device of the present invention is a second machine unit 26, a first _28' second second qing, a second = rectification = whole unit 34 and a third flow regulating unit 36, and a three-way two-way valve 38 = Μ 12 and a first flow regulating unit % are disposed between the first and second valleys 14 , and the first liquid crystal system is connected to the second connecting pipe 134 Flows to the first flow rate adjustment unit 26. The adjusting unit 26 is connected to the first container 12 via the third connecting pipe member 15G_two (four) 14: the first tank valve type 38671, and the first container 12 is pressed to adjust the gas pressure of the first container 丨2. In order to drive the first body; wherein the first flow rate adjusting unit 26 weeps into the "fourth" ^ 12 liquid crystal through the first device 12 and the first touch amount $, and the other three gas miscellaneous gas is set in the first volume; Ππ;8Τ^ 38132^, ^Withdraw valve 28 connection, and 盥一真介WW body filling device 1G filling liquid crystal reset, connect three σ, two ^ ^ G, when the trace (four) and the first container 12 Remaining in the first container 12: ^; the knife is changed to be connected with the vacuum gas chamber 38 to be connected with the first container 12 and the first chamber 28: = divided, then the normal filling is performed in the three-port two-n. The second container 14 is a piece of text = filled into the first - volume 姊 0 and the gas is connected, and the heart is "adjusting the first connection to the second adjustment to drive the fluid of the device 14 through the fourth connecting tube (four) flow, &gt ;Γ.^ Pull group 162 is transmitted - the first photoelectric shielding sensor 164 side - the first photoelectric f rS • 166 senses the position of the liquid level adjusting rod 212, electromagnetic room. First electric concealing feeling The sensing result of 162 is controlled according to the sensing module. The connecting pipe of the six connected pipe fittings (4) flows through the first electric shading sensing system, and the sub-clearing _丨==^彳_second light and the solenoid valve 16 is connected. The third cycle _ ― ― ～ ～ 『 『 『 『 『 『 『 『 『 『 『 『 『 『 『 『 『 『 『 『 『 『 『 『 『 『 『 『 『 『 『 『 『 『 『 『 『 『 『 『 『 『 『 『 The second flow rate adjusting unit 34 is connected to the pneumatic needle valve 22 via the seventh connecting pipe 22 and the liquid needle valve 22, and the liquid element 34 of the liquid level adjusting group 20 flows into the pneumatic needle valve 22 / the second flow regulating unit 34. And then actuated by the second flow adjustment unit 22, the body: the pneumatic needle valve 22, and the gas drives the gas between the pneumatic needles (4) ϋ i P moving the needle valve 22, wherein the control unit 24 is transmitted through the interval. 'When controlling the liquid crystal outflow nozzle 222, the microfluid of the present invention is arranged to connect the m 12 and the pneumatic needle valve 22. In addition, when the whole unit 26 and the flow rate i - container 12 are repaired, the first flow is closed. Adjust the 6 weeks to 36, and switch the three-port two-position valve 38 to connect the first - capacity 10 1338671 12 and vacuum 40. As described above, the microfluid injection device 1 of the present invention is applied to the application of a small amount of liquid crystal injection, and the microfluid injection device 1 of the present invention is based on the sensing module 162 by the electromagnetic valve 丨6. The actuating position of the liquid level adjusting rod 212 of the liquid level adjusting group 20 controls the fluid level of the liquid level adjusting group 2 by controlling the opening/closing of the pneumatic valve 18, and cuts the weight through the counterweight The block sliding base 204 and the rubber film 202 apply a fixed back pressure to the fluid of the liquid level adjusting group 2〇 and the control unit 24 controls the time interval between the nozzles 222 of the pneumatic needle 22 flowing out of the liquid crystal, thereby improving the precision of the micro liquid crystal injection. degree. And the microfluid injection device of the invention is further

The first-valley θ 14 temporarily stores the fluid flowing from the first container 12 to utilize the free liquid surface of the second container; the gas generated by the storage body stored in the first container 12, the bubble, is used to avoid the fluid Air bubbles are entrained when moving out of the nozzle. '

π is a flowchart of the embodiment of the present invention. As shown in the figure, the control method of the present invention performs liquid crystal injection by controlling the flow of the batch device 1G for upgrading f accuracy. - Beginning as shown in step _, control (four) - container 14 stores the 14th 'where the fluid is - liquid crystal, the first container 12 is driven by the gas pressure of the first tuning container U to drive the fluid to flow to the second container 14 J borrows two second two ''control two containers 14 fluid into the pneumatic valve 18, the second container 14 is 'two two to adjust the pressure of the second container 14 gas to drive the fluid into the pneumatic 1 16 162 ^ plant 20 The second (four) cutting is turned on/off to control the fluid flowing into the liquid crystal adjusting group 20' to control the liquid level adjusting group K day. η jade, control the liquid level in the ^ 2 of the liquid level adjustment electric power; continue to add a fixed back pressure according to step (10), and ^ 210 20 200 ^ for the liquid level adjustment group 2G The secret 'corresponding to control the pneumatic valve, the liquid level adjusting rod member is then sent according to step S140 - ^, the hole pump valve 22 is connected to the control unit μ to send a 1338671 breast to the pneumatic needle valve 22 ' to drive the pneumatic needle Valve 22 actuation = two = the invention of the micro-fluid injection of 1Q can be used to control the liquid level of the liquid needle valve 22 to control the liquid level of the liquid level adjustment group 2G liquid level adjustment group 2G level The change is ±1.5 cm, the liquid:%1 is determined, for example: the height of the head formed by the outlet of the nozzle 222 of 22 is two meters =! = the head pressure between the needles can be as high as two thousandths, the fluid The precision of the injection force is purely traditional. The pressure of the canister in the fluid, the 'the invention is - the amount of divergence 4 and its control method, the body of the 4 sets of the body - the first container - the first liquid level adjustment group, a pneumatic one; magnetic chamber, - pneumatic valve, - container through the second container, pneumatic between and; position adjustment group flow: = 'the system from the first one level of the rolling needle valve, liquid level The adjustment group is controlled by the inflow liquid level adjustment group to further control the liquid level of the liquid level adjustment group. The second control method can be used to control the time of the liquid crystal injection nozzle. Therefore, the invention is a bicycle that has new secrets, progressiveness, and patents that can be patented by the Patent Law of the People's Republic of China, and that the "systems of the system" will be able to pay the patents as soon as possible. Invention patent application, praying fisherman's desires, but only the above-mentioned ones are only the preferred embodiments of the present invention, and are not intended to be used for the purpose of making, constructing, or characterizing And the spirit of the compassion _, the tender trace tree (four) within the fine range. BRIEF DESCRIPTION OF THE DRAWINGS The first drawing is a schematic view of the structure of the preferred embodiment of the present invention; the second drawing is a schematic view of the structure of the first container of the present invention; 12 1338671 The fourth drawing is a schematic view of the liquid level adjusting group of the present invention; the fifth drawing is a top view of the liquid level adjusting group of the present invention; and the sixth drawing is a flow chart of a preferred embodiment of the present invention.

[Main component symbol description] 10 micro fluid injection device 12 first container 122 first upper cover 124 first gland 126 first inner bottle 128 first outer bottle 130 bottle holder 132 first connection tube 134 second connection tube 136 First 0-ring 14 second container 142 second upper cover 144 second gland 146 second inner bottle 148 second outer bottle 150 third connecting tube 152 fourth connecting tube 154 fifth connecting tube 156 second 0-ring 16 Electromagnetic room 162 sensing module 164 first photoelectric shielding sensor 166 second photoelectric shielding sensor 18 pneumatic valve 1338671

20 Level adjustment group 200 Bottle 202 Rubber film 2022 Perforation 204 Counterweight sliding base 2042 Hollow channel 206 Rubber column 208 Hollow screw 210 Counterweight block 212 Level adjustment rod 2122 Fixed shaft 214 Lower pressure ring 215 Upper pressure ring 2152 shaft mount 216 first fixing member 218 second fixing member 219 sixth connecting tube member 220 seventh connecting tube member 22 pneumatic needle valve 222 nozzle 24 control unit 26 first flow regulating unit 28 first pressure regulating valve 30 second pressure regulating Valve 32 third pressure regulating valve 34 second flow regulating unit 36 third flow adjusting unit 38 three-port two-valve 40 vacuum tube

Claims (1)

1338671, the scope of patent application: 1. A microfluid injection device comprising: a first container 'which stores a fluid; a second container connected to the first container, the fluid from the first container Flowing into the second container; a pneumatic valve, the second container is connected to the second valve, the fluid of the second container flows into the pneumatic valve; a solenoid valve, the setting-sensing module 'the solenoid valve and the gas Remuneration connection, the electromagnetic room is controlled according to the sensing result of the sensing group _ pneumatic valve opening/closing; a liquid level adjusting group, the setting-weighting block and the liquid level adjusting rod, the liquid level adjusting group and The pneumatic valve is connected to communicate with the fluid of the pneumatic valve, and the fluid flows into the liquid level adjusting group according to the control of the opening and closing of the electromagnetic valve. The weighting block applies pressure to the fluid of the liquid level adjusting group, and the weight is applied. Actuating with the liquid level of the fluid of the inspection group, the sense group sensing the opening and closing of the pneumatic valve, and controlling the opening/closing of the pneumatic valve; Set-nozzle, the liquid level adjustment group is connected to the pneumatic Wide and communication, the black level adjustment έ fluid flows into the pneumatic group of needles; and - a control unit which transmits a gas to the pneumatic valve, drive the needle valve actuating gas, so that the fluid flows through the nozzle. For example, the application of the micro-boat man device described in the above-mentioned _ 1 _, the towel adjustment assembly further comprises: a rubber film, which is provided with a perforation; a weight sliding base, which is provided with a hollow channel, the hollow channel is connected The perforation of the rubber raft, the weight sliding base abuts the weight and the liquid level adjusting rod, and the weight passes through the weight sliding base and the rubber film to the liquid level adjusting group Applying a force to the fluid; a rubber column disposed above the hollow passage of the sliding base of the weight and abutting the hollow passage of the 15 5 1338671; and a hollow stud inserted above the sliding base of the weight And abutting the rubber column, sealing the air passage of the sliding base of the weight through the rubber raft, the weight is placed above the sliding base of the weight, and driving the weight sliding base with the liquid The liquid level actuation of the bit adjustment group drives the liquid level adjustment rod. 3. The microfluid injection device of claim 1, further comprising: a fifth week pressure chamber connected to the first container and adjusting a gas waste force of the first container to drive the first container Flowing into the second container; - a second pressure regulating valve 'connecting to the second container and adjusting a gas pressure of the second container to drive the fluid of the second container into the pneumatic valve; and - a third adjustment _, which is connected to the electromagnetic_ and adjusts the gas pressure of the electric circuit for the solenoid valve to control the pneumatic valve. 4. The microfluid injection device of claim 3, wherein the first pressure regulating chamber, the second pressure regulating valve and the third pressure regulating valve are further connected to a gas storage device. 5' The microfluid injection device of claim 3, further comprising: - a switching unit, which is disposed between the first pressure regulating valve and the first container, the switching unit is connected to the first tone The pressure chamber is connected to the first container; and the vacuum pump is connected to a vacuum tube, and the vacuum tube is connected to the switching unit. 6. The microfluid injection device according to claim 1, further comprising: a first flow-discharging unit disposed between the first container and the third container, the second flow adjustment unit adjusting a flow rate between the first container and the second container; a second flow adjustment unit disposed between the liquid level adjustment group and the pneumatic needle valve, the second flow adjustment unit adjusting the fluid a flow rate between the liquid level adjustment group and the pneumatic needle reading; and a third flow rate adjustment unit disposed between the lining-receiving side, the second flow adjusting unit adjusting the fluid in the first container The microfluidic device is the same as the pneumatic device, wherein the sensing module is a photoelectric shielding module, which is provided as a first sensor. Photoelectric occlusion sensor and a second photomask 8. The microfluid as described in the scope of the patent application. 9. A method for controlling microfluid injection, comprising: controlling a fluid stored in a first container a second container; controlling the fluid flow of the second container into the pneumatic valve; controlling the π system: the It valve controls the opening/closing of the employee valve according to the sense group of the sensing group to control the gas Flow person-level adjustment group; ^1 in the face 3 team - the weights put pressure on the group's honesty, ''drives the swaying-independent bar to follow the liquid level of the whole group' to make this The solenoid valve senses the actuating position of the button adjusting rod according to the sensing module, correspondingly controls the opening/closing of the pneumatic valve; controls the fluid inflow-pneumatic needle between the liquid level adjusting group; and controls the control unit A gas is applied to a pneumatic needle valve to drive the pneumatic needle to actuate the nozzle of the pneumatic needle valve to flow out of the fluid of the pneumatic needle valve. The body injecting device, wherein the fluid is a liquid. The method of claim 9, wherein the step of driving the fluid from the first container into the second container further comprises: Adjust the pressure of the transfer-capacity n to drive the second container of the fluid basin. ·=Application for Specialization _ 9 The described control method, wherein the step of flowing the repellent fluid from the second container to a pneumatic valve further includes adjusting the pressure of the second volume to drive the first The fluid of the two containers flows into the pneumatic chamber. If the money control method described in _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ The step further includes: adjusting the pressure of the magnetic valve for the solenoid valve to control the pneumatic valve to act. 17