TW571167B - Device and method for delivering and supplying liquid crystal material - Google Patents

Abstract

A device for delivering and supplying liquid crystal material includes a container, an injecting device and a delivering head. The container receives the liquid crystal material. A straw is inserted into the liquid crystal material in the container. An air inlet tube is connected to a nitrogen source for guiding hydrogen. The injecting device has a chamber connected to the straw of the container for guiding and receiving the liquid crystal material. A plug is provided to squeeze out a predetermined amount of liquid crystal material. The delivering head is connected to the injecting device for delivering the predetermined amount of liquid crystal material to the substrate of a liquid crystal display device.

Description

571167

[Field of Invention]

The present invention relates to a method 'especially related to the distribution of the liquid H i 1 1 〇 DF) technology [prior art] f device for the distribution and supply of liquid crystal materials and the liquid crystal drop type (One Drop) of the display 1. Apparatus and method for liquid crystal materials. Advances in electronic technology of the people, crying +7, P, ^ ,, shooting light, thin, short, power consumption · unreasonable demand, increasing daily profit. Liquid Yueyi ... Play LCD) Due to the advantages of dry display: 1 display Quld Crystal light weight, etc., filial piety has low V, low heat, small size, crying. Dagger < step replacing traditional cathode ray tube display

VU, 7 has a variety of methods for assembling liquid crystal displays. For example, = In the method used in the previous technology, the two substrates of the display first construct all necessary thin film transistors (Thin FUm Transistor;

TFT), circuits, and shirt color filters. The two substrates are then aligned with each other and spaced at a distance of about 5 micrometers, and then bonded together at the edges with epoxy resin. A bonding substrate and a liquid crystal cell 2 filled with liquid crystal materials are placed in a vacuum chamber, so that the gap in the bonding substrate is in a vacuum state. Afterwards, the filling opening of the bonding substrate is directed toward the liquid crystal dish and contacts the liquid crystal material, and then the vacuum is broken, so that the filling opening of the bonding substrate is caused by a capillary effect and a force of 4 inside and outside of the bonding substrate. The liquid crystal material was gradually absorbed. However, this method is quite time consuming. In recent years, a more rapid filling technology has been developed, the so-called One Drop F i 1 1 technology. In this technique, one

00587.ptd Page 4 571167 V. Description of the Invention (2) Before the substrate is combined with another substrate, it contains liquid crystal material filled by droplets. The droplet filling method can be found in US Patent No. 5,263,888 issued to Teruhisa Ishjhara et al. On January 23, 1993 (Method of Manufacture of Liquid Crystal Display Panel) ", which is incorporated herein by reference. It is shown in Figure 1 of Ming Ling Kao, which discloses a droplet dispensing device 10 of the prior art, which is used to drop liquid crystal materials. 40 drops onto a substrate of a liquid crystal display. The droplet distribution device 10 includes a container 18 for supplying liquid crystal material 32, a syringe 34 for containing the liquid crystal material 32 to be distributed, and a distribution head 24, The liquid crystal material 32 is distributed. When the liquid crystal material 32 is dropped on a substrate (not shown), the plunger 36 in the syringe 34 is a pulse step motor (pulse step motor). Driven by 30A, the liquid crystal material 32 held in the container is dispensed to the substrate through the three-way joint 28 and a pneumatic valve 26 as droplets from the dispensing head 24. When the syringe When the liquid crystal material 32 of 34 consumes a predetermined amount of liquid crystal, the pneumatic chamber 26 It is closed and the supply valve 38 is opened. On the same day, one of the containers 18 is capped. The upper part—the intake pipe 14 is a high pressure nitrogen purge and drives the pulse. The H step marai moves upward. In this way, the liquid crystal material 32 'in the container 18 flows through the supply valve 38, the line 16, and the three-way joint 28 to the syringe 34 in sequence. Typically: the commercially available liquid crystal material is packed in a bottle Therefore, when the liquid crystal material 32 of the container 18 is consumed to the bottom of the capacity: the lower limit, an operator must open the bottle of the new liquid crystal material bottle 20-due 32 is poured and supplied into the container 丨 8. However, this process of supplying liquid crystal is not good. When the liquid crystal material 32

571167 V. Description of the invention (3) When the bottle 20 is poured into the container 18, it becomes polluted. Furthermore, the agitation caused the bubbles to form. For the valve 3 8 and the pneumatic valve 26, indeed, there are ways to prevent bubbles from forming in the fluid. [Summary of the Invention] An object of the present invention is a method 'for mounting a liquid crystal material on a substrate. It is the process of contacting the corner environment, which will cause some bubbles in the container 18 to not only block, but also cause the distribution of the droplets that need to be provided / contaminated by the crystalline material and avoid contamination. Provide a liquid crystal material distribution, liquid droplet material distribution to the liquid crystal, and easy-to-make liquid crystal material pipeline 16 6. Supply of imprecision liquid crystal device Another aspect of the present invention in the liquid crystal material can enable the liquid crystal material to achieve the above purpose The device includes a container for containing the liquid crystal material, an inner part, and an air inlet tube, and the syringe has a chamber part for receiving the liquid crystal material and the liquid crystal material. The method for distributing the liquid crystal material of the delivery head to the alternative material according to the present invention includes the following: providing a syringe free of the present invention and having a nitrogen source and a phase separation from the container; and The plunger is attached to a liquid crystal display for the purpose of providing a bubble generating device and a feeding tube inserted into the connection, a suction tube for the device, a substrate for the squeezer connection, and a liquid invention. An assembly and delivery head for a material and a display device. Connect the container with a guide and use it. The container of the liquid crystal material is nitrogen gas in the liquid crystal material. The connection is used to guide a predetermined amount of the predetermined step m. Provide a first container to distribute a liquid crystal material to accommodate the liquid crystal

00587.ptd Page 6 ^ / 1167 V. Description of the invention (4) Materials; provide one external connection, connected by: "; suction 2-intake pipe, •-nitrogen source liquid crystal material; mention two main: f ^, Insert the straw of the outer cover to introduce nitrogen into the first volume-crypton: the straw of the container is connected; (SlPhon effec valley ..., use the siphon effect of the straw to cry for a day m a predetermined amount of the liquid crystal Materials; and 1 ~ °. The liquid material is consumed to the bottom of the first volume of crying, Qiu Dingji, Fuda, and the second volume of the container, which contain the lower limit of the bottom of the storage, W, and provide a first -And: dagger; crying root! The droplet delivery device i of the present invention uses the first-crying directly with the first -i :: / night crystal material. When supplying liquid crystal material, it can be processed. Due to: Π: The first container ... needs to be poured to make the liquid crystal material deteriorate ::, the contact time can be reduced, and the bubble can also be reduced. ,, ^ This' P cattle low, while the gas in the liquid crystal material is obviously Π; :::》 :: 's: Features, and advantages can be explained in more detail as follows. In conjunction with the attached drawings, [invention description] Distribution: ΐ ι = Tutian shows the liquid droplets on two substrates (not shown) according to the embodiment of the present invention. The liquid droplet dispensing device includes two packers 200 'for supplying liquid crystal material 132 and a syringe.' Combined ^ liquid crystal material 132, and-delivery head 124, for dispensing liquid day and day material 132. Those skilled in the art will understand that the container 200

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The shape and size depend on the type and brand of the liquid crystal material. When the liquid crystal material 32 is dropped on the substrate (not shown), one of the plungers 136 in the syringe 134 is driven downward by a pulse step motor 130, and A predetermined amount of the liquid crystal material 132 inside the chamber portion 135 of the syringe 134 is pushed down and moved down. The predetermined amount of the liquid crystal material 132 moves downward, through a three-way joint 128 and a pneumatic valve 126, so as to form a droplet 140, which is dropped from the distribution head 124 to the substrate ... The liquid crystal material 1 3 2 in the 2 0 0 passes through the straw 2 1 0, the supply valve 138, a line 116, and the three-way joint 128, and flows to the chamber portion 1 of the syringe 1 34. Within 3 of 5. ... ^ ## Refer to Figure 3, which shows the contents of the present invention according to the present invention. The container 200 has a main body 216 and an outer cover 212, respectively; a pattern 22o: a thread 222, which are engaged with each other, for fixing the outer cover 2 12 to the main body 216. The outer cover 212 has an inlet pipe 214 connected to an inert gas source such as a nitrogen (team) source, and a suction pipe 21 is connected to a supply valve 138. When the liquid crystal material 32 in the chamber portion 1 35 of the syringe 1 34 consumes a predetermined amount (usually the amount of liquid crystal required by a panel), the pneumatic valve 126 will be closed and the supply valve 1 38 will be opened. At the same time, an automatic controller (not shown in the figure) drives the pulse stepping motor 30 and rotates and moves the plunger upward to the upper starting point to stop. During the ascent of the plunger 36, @hold the nitrogen (N2) to make the liquid crystal liquid crystal material 132 in the container 200 in a good environment 'to avoid pollution. The pressure of the nitrogen source is adjustable ′ and the liquid crystal material 1 3 2 ′ can be smoothly supplied from the straw 2 丨 0 to

00587.ptd Page 8 571167 V. Description of the invention (6) The syringe 1 3 4. Those skilled in the art will understand that 'the simple driving of the plunger 1 3 6 moves upwards' can also suck the liquid crystal material 丨 32 into the cavity portion \ 3 5 of the syringe 1 34. Similarly, simply inputting nitrogen or inert gas can cause the liquid crystal material 132 to generate pressure and drive the plunger 136 to move upward, thereby injecting the liquid crystal material 1 3 2 into the cavity portion of the syringe 1 3 4 丨 3 5 within. As shown in the figure, the straw 210 is integrally formed and directly connected to the supply U8 ′, so there is no intermediate connection device or connection point, so as to reduce the possibility of contamination of the liquid crystal material 132. The straw 21 is preferably made of Teflon material (PTFE), so as to further reduce the possibility of contaminating the liquid crystal material 132. The main body 21-6 of the container 200 according to the present invention is a glass bottle of the liquid crystal material, and the outer lid 21 2 according to the present invention is also engaged with the glass bottle. Therefore, the liquid crystal material 132 in the container 200 runs out of Risi, directly opens the new glass bottle to replace the empty body 216, and covers the outer cover 212. At the same time: 4 straws 210 'can be supplied to the LCD material 132. Furthermore, according to the following description, the outer cover 2 1-2 may have another intermediate member 226 for installing the suction element and the intake pipe 214 and an outer ring member m having the thread 222 and the body 216 sprayed together. / The outer ring member 228 is manufactured by processing the glass bottle of the liquid crystal, whereby the intermediate member m can cooperate with different outer ring members 228 to supply a liquid crystal material. Those skilled in the art will understand that commercially available liquid crystal materials are in bottles2. Typically, the liquid crystal material is contained in a cylindrical glass bottle or valley state, and is sealed by a cap with a screw seal. In fact,

00587.ptd Page 9

571167 V. Description of the invention (7) Furthermore, since the liquid crystal material is contained in the reactor m, it can be installed on the outer side of the Poma bottle with an optical liquid level H i. The Liebei Haihe liquid crystal material has a beveled cutout 218 at the end of the straw 21o. When the glass bottle or the container is 2000, you will be able to replace the micro droplets of the crystal material. Therefore, the liquid is dripped at the end of the suction / m; f: bubbles are formed in the liquid crystal material 132. In addition, the bevel cut must not touch the bottom of the main body 216 without causing obstruction of the straw 21. The intake valve 214 has a closed end 242, and a vent hole 244 (shown at the first 4). With this, the gas pressure from the air inlet to the local pressure will not directly impact the liquid material in the container, and avoid the generation of air bubbles. In summary: The droplet delivery device i according to the present invention uses a liquid crystal to contain a liquid crystal material. When supplying the liquid crystal material, 可 ::: Ϊ bottle or container ′ ⑥ does not require pouring process. therefore,

The possibility of W deterioration is reduced, and at the same time, the gas in the liquid crystal material ::: Γ = And, it is enough to accurately distribute the predetermined amount of liquid crystal structure due to air bubbles. H YOUPEDAL Although the present invention has been disclosed in the foregoing preferred embodiments, the iron is limited to the present invention. Anyone skilled in the art can use it in various ways without departing from the spirit of the present invention. See the attached patent for the definition of the scope of the patent, which is based on this warranty 4 00587.ptd Page 10 571167 Brief description of the diagram [Illustration] Figure 1 is a droplet distribution device of a liquid crystal material of the prior art Block diagram. Fig. 2 is a schematic block diagram of a liquid droplet dispensing device according to the present invention. Fig. 3 is a schematic cross-sectional view of the container of the droplet dispensing device shown in Fig. 2. Figure 4 is a schematic perspective view of the end of the air inlet pipe of the container shown in Figures 2 and 3. [Picture: No. description] 10 Liquid drop dispensing device 12 Outer cover 14 Intake tube 18 Container 16 Line 20 Liquid crystal material bottle 24 S send head 26 Pneumatic valve 28 Two-way joint 30 Pulse stepper motor 32 Liquid crystal material 34 Syringe 36 Plunger 38 Supply valve 40 Droplet 100 Droplet dispense device 116 Line 124 Distributor 126 Pneumatic valve

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Brief description of the drawing 1 2 8 three-way joint 130 pulse stepping motor 132 liquid crystal material 134 syringe 135 chamber portion 137 optical sensor 136 plunger 138 supply valve 140 liquid droplet 200 container 210 suction tube 212 outer cover 214 intake pipe 216 main body 218 Bevel cuts 220 Threads 222 Threads 226 Intermediate members 228 Outer ring members 242 Closed ends 244 Outgassing L

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Claims (1)

571167 申请, application-details 1, a device for distributing liquid crystal materials' includes · a container for containing the liquid crystal material, and has a straw inserted into the liquid crystal material in the container, a syringe with a cavity The chamber part is connected with the straw of the container for introducing and accommodating the liquid crystal material, and a plunger for sending out a predetermined liquid crystal material, and a delivery head connected with the syringe for The predetermined amount of liquid crystal material is distributed. 2. The device for distributing liquid crystal materials according to item 1 of the scope of patent application, wherein the container further has an air inlet pipe connected to an inert gas source for introducing the inert gas. 3. The device for distributing liquid crystal materials according to item 2 of the scope of patent application, wherein the air inlet pipe has a closed end and a plurality of lateral air outlet holes for introducing the inert gas from the side of the air inlet pipe to the Container. 4. The device for distributing liquid crystal material according to item 1 of the scope of patent application, wherein the end of the straw has a bevel cut.丨 Qin Hui: 5. The device for distributing liquid crystal material according to item 1 of the scope of patent application, and further includes a pulse stepping motor for driving the plunger of the syringe. 6. Liquid crystal material distribution device according to item 1 of the scope of patent application, including 00587.ptd Page 13 571167 6. Scope of patent application An optical sensor is used to sense the height of the liquid crystal material page in the container. 7. The device for distributing liquid crystal material according to item 1 of the scope of patent application, further comprising a first valve, connecting the straw to the chamber portion of the syringe. 8. The device for distributing liquid crystal materials according to item 1 of the scope of the patent application, and further includes a three-way connector to connect the straw, the syringe and the delivery head. 9. The device for distributing liquid crystal material according to item 1 of the scope of the patent application, further comprising a second valve disposed between the syringe and the dispensing head. 10. The device for distributing liquid crystal materials according to item 9 of the scope of the patent application, wherein the second valve is a pneumatic valve. 11. A method for distributing a liquid crystal material, comprising the following steps: providing a first bottle to contain the liquid crystal material; providing a straw to be inserted into the liquid crystal material of the first bottle; providing a syringe connected to the straw; _ via The straw supplies the liquid crystal material to the syringe; and presses the syringe to dispense a predetermined amount of the liquid crystal material. 1 2. The method for distributing liquid crystal materials according to item 11 of the scope of patent application, further including the following steps: providing an outer cover with an air inlet pipe connected to an inert gas source; 00587.ptd Page 14 571167 VI. Scope of patent application Seal the first bottle with the outer cap; and introduce the inert gas into the first bottle to supply the liquid crystal material to the syringe. 1 3. The method for distributing liquid crystal materials according to item 12 of the scope of patent application, wherein the air inlet pipe has a closed end and a plurality of lateral air outlet holes for introducing the nitrogen gas from the side of the air inlet pipe. The container. 14. The method for distributing liquid crystal materials according to item 11 of the scope of patent application, wherein the end of the straw has a bevel cut. 15. The method for distributing liquid crystal materials according to item 11 of the scope of the patent application, further comprising the steps of: providing a second bottle for containing the liquid crystal material to replace the first bottle. 16. A device for supplying a liquid crystal material, comprising: a bottle for containing the liquid crystal material; and an outer cover closing the bottle and having a straw inserted into the liquid crystal material in the bottle. 17. The device for supplying liquid crystal material according to item 16 of the scope of patent application, wherein the outer cover further has an air inlet pipe connected to an inert gas source for introducing the inert gas. 00587.ptd Page 15 571167 VI. Patent application scope 1 8. The device for supplying liquid crystal material according to item 17 of the patent application scope, wherein the air inlet pipe has a closed end and a plurality of lateral air outlets, and The nitrogen gas is introduced into the container from the side of the air inlet pipe. 19. The device for supplying liquid crystal material according to item 16 of the scope of patent application, wherein the end of the straw has a bevel cut. 20. A method for supplying a liquid crystal material, comprising the following steps: providing a first bottle to receive the liquid crystal material; providing a straw to be inserted into the liquid crystal material of the first bottle; and supplying the liquid crystal material through the straw. . 2 1. The method for supplying liquid crystal material according to item 20 of the scope of patent application, further comprising the following steps: providing an outer cover with an air inlet pipe connected to an inert gas source; ^ _ sealing the first cover with the outer cover A bottle; and _ 婊 introducing the inert gas into the first bottle to supply the liquid crystal material material. 2 2. The method for supplying liquid crystal material according to item 21 of the scope of patent application, wherein the air inlet pipe has a closed end and a plurality of lateral air outlet holes for introducing the nitrogen gas from the side of the air inlet pipe The container. 00587.ptd Page 16 571167 VI. Patent application scope 2 3. The method for supplying liquid crystal material according to item 20 of the patent application scope, wherein the end of the straw has a bevel cut. 24. The method for supplying a liquid crystal material according to item 20 of the scope of patent application, further comprising the steps of: providing a second bottle for containing the liquid crystal material to replace the first bottle. Ϊ Ϊ 00587.ptd Page 17