TWI225566B - Manufacture and equipment for dropping liquid crystal - Google Patents

Abstract

A manufacture and equipment for dropping liquid crystal on a substrate is described. In particular, drops liquid crystal on the substrate by a plurality of drop device that enables to be moved for adjusting the places, where the liquid crystal is dropped on. Before dropping the liquid crystal on the substrate, adjust the capacity, which is confined in a range, of the liquid crystal in according with the viscosity of the liquid crystal and the size of the substrate.

Description

1225566 V. Description of the invention (1) 1. [Technical field to which the invention belongs] The present invention relates to a liquid crystal filling process and equipment, and particularly to a process for filling liquid crystal on a substrate by dripping liquid crystal. 2. [Previous Technology] Generally speaking, liquid crystal displays (LCDs) have the characteristics of thin thickness, light weight, and low power consumption. Therefore, liquid crystal displays have become the most important electronic optical devices. The structure of the liquid crystal display is shown in the first figure. The liquid crystal 2 exists in a liquid crystal accommodating space 2; the liquid crystal accommodating space 3 is located between the first substrate 4, the second substrate 6, and the sealing element 8 of the liquid crystal accommodating space 3. . The inner surface (not labeled) of the first substrate 4 is in contact with the liquid crystal 2 and has a transparent electrode 10 covering the inner surface, and an alignment layer 12 (orientation layer) capable of controlling the molecular distribution of the liquid crystal 2 is covered on the transparent electrode 1. 0 above the inner surface. The inner surface (not labeled) of the second substrate 6 is in contact with the liquid crystal 2, another transparent electrode 14 covers the inner surface of the second substrate 6, and another alignment film 16 for controlling the distribution state of the liquid crystal molecules is covered with transparent. The electrodes 14 are on the inner surface of the second substrate 6. Between the first substrate 4 and the second substrate 6, there are a large number of spacers ί7 (spacers), and the role of the gap 17 to ensure the first substrate 4 and the surface of the second substrate 6 will not Concave or convex phenomenon occurs, which affects the daytime product f of the LCD screen. Taking the first picture as an example, in the conventional liquid crystal infusion technology, the first substrate 4 and the second substrate 6 and the sealing element 8 are usually combined together before the

Page 5 1225566 V. Description of the invention (2) There is still an input port at the sealing element 8 and it takes several hours to fill the liquid crystal 2 through the input port; after the liquid crystal 2 is filled, the sealing element 8 and the The space between the first substrate 4 and the second substrate 6 is completely closed to prevent the liquid crystal 2 from accidentally flowing out or allowing external impurities to have a chance to contaminate the liquid crystal 2. Because the process of filling the liquid crystal 2 between the first substrate 4 and the second substrate 6 and the sealing element 8 in a filling manner takes several hours, there is a "liquid crystal dripping" (0 DF, 0 ne D r 〇p F i 1 1) technology is disclosed from Japanese Patent Lay-open No. 62-89025 (details are listed in the annex). The liquid crystal dropping technology can fill a certain amount of liquid crystal 2 between the first substrate 4 and the second substrate 6 and the sealing element 8 in less than one hour, greatly shortening the overall process time of the liquid crystal display and increasing the production capacity. The second figure is a schematic diagram of the conventional 0DF technology process, and the liquid crystal accommodating space 3, the sealing element 8, the transparent electrode 10, the alignment film 12, the transparent electrode 14, the alignment film 16 and the spacer 1 shown in the first image are omitted. 7, and represented by the liquid crystal 2, the first substrate 4, the second substrate 6, the sealing element 8 and the liquid crystal accommodation space 19. The liquid crystal 2 is directly dropped by a liquid crystal dropping device (not shown) in the liquid crystal accommodating space 19 located on the first substrate 4 and defined by the sealing element 8, and then the liquid crystal 2 is allowed to slowly flow naturally on the first substrate 4. Come on. After the liquid crystal 2 diffuses to a certain extent, the first substrate 4 and the second substrate 6 are completely sealed by the coated but uncondensed sealing element 8, and the sealing element 8 is hardened to prevent the first substrate 4 and The second substrate 6 is loose or the liquid crystal 2 flows out of the sealing element 8

Page 6 1225566 V. Description of Invention (3). Taking the first picture as an example, in this conventional liquid crystal dropping process, the dropped liquid crystal 2 is often too large due to the amount of dropping, which is easily caused by the alignment film 1 2, 1 shown in the first picture. 6 and the spacer 17 are improperly squeezed by the dropped liquid crystal 2, and the alignment film 1 2, 16 and the spacer 17 are deformed or even damaged. Therefore, it is very easy to cause a decrease in the yield rate in the process of producing liquid crystal displays, or a poor quality of the liquid crystal produced. In addition, when the sealing member 8 is coated by the conventional technique, defects such as the protruding point 9 often occur. In this way, the second substrate 6 is likely to be incompletely sealed due to contact with the uneven protruding points 9, or the protruding points 9 are squeezed by excessive force, resulting in the rupture of the sealing element 8 and affecting the sealing element S. quality. Moreover, in the conventional liquid crystal dropping process, because the dropped liquid crystal 2 is prone to poor control, the flow area of the liquid crystal 2 is too large to accidentally contact the sealing element 8; or when the position of the liquid crystal 2 dropping is not well controlled It is also easy to drip directly on the sealing element 8. When the liquid crystal 2 comes into contact with the sealing element 8 that has not yet hardened, a chemical change occurs between the two, which makes the sealing of the sealing element 8 poor, or the liquid crystal 2 starts to deteriorate in part, resulting in the display quality of the liquid crystal display. Bad condition. Therefore, the conventional liquid crystal dropping process needs to be improved. The present invention will describe the improvement method in detail below.

Page 7 1225566 V. Description of the invention (4) III. [Content of the invention] In view of the above-mentioned background of the invention, the conventional liquid crystal dropping process still has many shortcomings. The present invention proposes an improved liquid crystal dropping process to improve the conventional Know the disadvantages of technology. An object of the present invention is to improve the yield of a liquid crystal display process. In the liquid crystal filling process of the present invention, the dripping amount of each drop of liquid crystal is limited to a certain range, so as to prevent the fixed state of the alignment film and the gap from being affected when the liquid crystal is dripping or flowing, and reduce the number of liquid crystals that are not standardized in the conventional technology. The amount of liquid crystal dropping may easily cause damage to the spacer or the alignment film, thereby increasing the yield. Another object of the present invention is to maintain the sealing quality of the sealing element. The starting point and the ending point of the sealing element designed by the present invention are respectively located at one end of two parallel lines, which reduces the sealing effect due to the difficulty in controlling the width of the starting point and the ending point. At the same time, by restricting the dripping liquid crystal position from the sealing element by at least a safe distance, it can reduce the liquid crystal from accidentally dropping directly or excessively flowing on the substrate to contact and destroy the sealing element, affecting the sealing effect. Another object of the present invention is to maintain the quality of liquid crystal. The invention limits the dripping liquid crystal position from the sealing element by at least a safe distance, and reduces the situation that the liquid crystal accidentally directly drips or excessively flows on the substrate and contacts the sealing element. The liquid crystal and the sealing element are prevented from being deteriorated due to contact with each other, so as to ensure good liquid crystal quality.

Page 8 1225566 V. Description of the invention (5) Another object of the present invention is to speed up the process efficiency while maintaining the quality of the display. The present invention adjusts the amount of liquid crystal dripping by limiting the amount of dripping of each drop of liquid crystal to a certain range, and adjusting factors such as substrates of different sizes, the viscosity of the liquid crystal, the distance between sealing elements, and the like, and simultaneously adjusting the spacing of each dripping device located on the same line To achieve the purpose of speeding up the liquid crystal filling process. Another object of the present invention is to ensure the operation efficiency of the liquid crystal filling process. The invention designs that each dripping device can be disassembled individually, which reduces the situation that the entire liquid crystal filling process will stagnate when the dripping device occurs. Even if the dripping equipment is in a state of failure and cannot be operated, the dripping equipment in question can be disassembled and repaired. While the damaged dripping equipment is being repaired, the liquid crystal filling process is continuously operated to ensure operation efficiency. The present invention fills liquid crystal on a first substrate by dripping liquid crystal, except that the starting point and end point of a sealing element (such as a sealant) that defines a liquid crystal accommodating space before the first substrate is adhered to another substrate In addition to not being connected, the drip amount of the liquid crystal is adjusted to be within a certain range by controlling the drip amount adjustment knob on each drip device, and the distance between the drop position of each liquid crystal and the sealing element is at least 5 mm. When dripping liquid crystal, adjust the dripping amount according to the viscosity of the liquid crystal. When filling substrates of different sizes, the amount of liquid crystal dripping is adjusted accordingly, so as to achieve the best filling efficiency. Moreover, the amount of dripping of each drop of liquid crystal and the position of the drop in the liquid crystal accommodating space will change due to the distance from the sealing element.

Page 9 1225566 V. Description of the invention (6) The advantages and disadvantages of the present invention compared with the conventional technology are that the sealing element of the present invention when the liquid crystal is dropped is not tightly sealed to ensure that the sealing element has good sealing properties. In addition, the amount and position of the liquid crystal dripping will be adjusted to ensure the tightness of the sealing element, and to raise the liquid crystal filling speed before damaging the element fixed in the liquid crystal accommodating space. 4. Embodiments The following description of the process and equipment of the present invention does not include the entire liquid crystal dropping process and equipment, but focuses on describing the present invention. Existing techniques used in the present invention are only cited in detail here to help explain the present invention. Moreover, the related illustrations in the following text are not drawn to scale, and their function is only to represent the features of the present invention. In the present invention, liquid crystal is filled on a first substrate in a dripping manner, in addition to making the defined liquid point as small as 5 mm in the range where each titration is not performed. Once the adjustment is made, the starting point of the sealing element (such as a frame glue) of the crystal receiving space will fall, and the final substrate and the first substrate are not connected before being tightly connected. It is also adjusted by the drip adjustment knob on the device. The amount of liquid crystal dropped, and the position where each drop of liquid crystal falls from the sealing element > When the liquid crystal is dropped, the viscosity of the liquid crystal is matched. When filling substrates of different sizes, the amount of liquid crystal dripping makes the filling efficiency faster. And the position of the drop plate of each drop of liquid crystal will change due to the distance between the liquid crystal in the liquid crystal accommodating space.

Page 10 1225566 V. Description of the invention (7) As shown in the third example of the first embodiment of the present invention, a plurality of liquid crystals 20 are dropped on a first substrate 22 by a liquid crystal dropping device 18 The space 2 3 forms a liquid crystal layer 24. A sealing member 26 defines a liquid crystal accommodating space 23. In the second diagram of the conventional technique, the protruding point 9 appears in the step of coating the sealing element 8 mostly; because the width of the start position and the end position of the coating is the least easy to control, it is easy There are prominent points 9 appearing. If the width between the start point and the end point of the coating is too large, the second substrate 6 is likely to be incompletely adhered due to contact with the uneven protruding points 9. If the width of the start point and the end point of the coating is too small, the sealing element 8 itself will not be easily connected, and the sealing failure will easily occur. Therefore, the sealing element 26 of the present invention has a starting point 28 and an end point 30. When coating the sealing element 26, the starting point 28 of the coating and the end point 30 of the coating are not directly used as in the conventional technique. They are connected so that the starting point 28 and the ending point 30 are located at the endpoints of two parallel lines 32 and 34, respectively, and the parallel lines 32 and 34 can be straight lines, diagonal lines, or curved lines. Until the end of the process of dropping the liquid crystal 20, when the first substrate 22 and a second substrate (not shown) are closely adhered, the sealing element 26 will be subjected to the force of the two substrates being closely squeezed, so that The direction parallel to the first substrate 22 is expanded, and then the parallel lines 32 and 34 are joined together to seal the liquid crystal accommodating space 23, thereby reducing the probability of the protruding point 9 in the conventional technology. Of course, the positions of the start point 28 and the end point 30 are not necessarily disposed at the corners of the sealing element 26 as shown in the figure, and may be disposed at any position of the sealing element 26 as required. i In order to more effectively prevent the liquid crystal 20 from contacting the sealing element 26 and produce a chemical effect, which makes the sealing condition of the sealing element 26 poor, it is necessary to control the liquid.

Page 1Γ 1225566 V. Description of the invention (8) The relative position between the crystal dropping device 18 and the first substrate 22. While controlling all the liquid crystals 20 to be evenly distributed on the first substrate 22, by precisely controlling the position and amount of each drop of the liquid crystals 20 falling on the liquid crystal accommodating space 23, the liquid crystals 20 are controlled on the first substrate 2 The position of the flow on 2 is at least one safety distance A from the sealing element 26. This safety distance A is at least 5 mm. Before the liquid crystal 20 is sealed on the first substrate 2, the second substrate and the sealing element 26, the sealing element 26 will not be touched and the sealing element 26 will not be damaged or the liquid crystal 20 will be deteriorated. When the viscosity of the liquid crystal 20 used is low, it is necessary to reduce the dripping amount of the liquid crystal 20 to prevent the liquid crystal 20 to be dropped due to being too heavy from falling off at an unscheduled position and dripping on the sealing element 2 6 or not dripped into the liquid crystal accommodating space 23. Or, due to being too easy to flow and contacting the sealing element 26 (such as a sealant), a chemical change occurs, which affects the sealing performance of the sealing element 26 or the properties of the liquid crystal 20 itself. However, the dripping amount of the liquid crystal 20 should not be too small. If it is less than 0.5 mg, the display quality may be poor because the first substrate 23 is not covered. When the viscosity of the liquid crystal 20 used is high, the dripping amount can be increased to accelerate the efficiency of filling the liquid crystal 20; however, there should be a certain limit to increase the dripping amount. If the dripping amount is more than 10 mg, Because the impact force when the liquid crystal 20 drops is too large, the fixed state of the alignment salt (not shown) or the spacer (not shown) may be damaged, and the display quality may be affected. The second embodiment of the present invention is shown in FIG. 4A. The liquid crystal of the present invention is shown in FIG.

Page 12 1225566 V. Description of the invention (9) The filling system uses a plurality of drip devices 4 8 and each drip device 4 8 (including drip devices 48a, 48b, 48c, 48d, and 48e) has a drip. The amount adjustment button 5 Ο is used to control the dropping amount of the dropping device 4 8 to drop the liquid crystal 51 on the first substrate 52, and the first substrate 52 has a sealing element 54 (such as the sealing element in the first embodiment). 26), and let the liquid crystal 51 drop in the liquid crystal accommodating space 5 6 0

The liquid crystal filling process of the present invention is to make the speed fast without damaging the alignment film and the gap, and it will not have any before the first substrate W and a second substrate 58 are completely sealed (shown in the fourth C diagram). The liquid crystal 51 is in contact with the sealing element 54 and the like, and the present invention adjusts the whole time by 5 weeks to adjust the dripping amount of each dripping device 48 that is located on a straight line. The dripping device that allows the dripping liquid crystal 51 to be located farther away from the sealing element 54 (such as 48a is the farthest from the sealing element 54, the distance is a, and the distance between the dripping device 4 8 b and the nearest branch sealing element 54 is the first Two far away,

The distance is b) The larger the amount of dripping is, the closer the dripping device is to the sealing element (such as the dripping device 4 8 c and the closest sealing element 5 4 is the distance c 'the dripping device 4 8 d is the closest to the sealing element 54. The distance between the dripping device 4 8 e and the nearest sealing element 5 4 is e) the amount of dripping is small. When all the dropping devices drop the liquid crystal 51 on the first substrate 52, the state where the liquid crystal 51 is dropped into the liquid crystal accommodating space 56 is as shown in FIG. 4B. The distance of the liquid crystal 5 1 is more, which can fill a larger space in a shorter time 'reduce the process time; the liquid crystal 5 closer to the sealing element 5 4 is less 1' can reduce the liquid crystal 5 1 contact with the sealing element 5 4 chance.

Page 13

1225566 V. Description of the invention (10) If the first substrate 5 2 is a substrate of a larger size, adjust the drip adjustment knob 50 to make the liquid crystal 51 drip. 6. When the first substrate 5 2 is a small-sized substrate, the dripping amount adjusting knob 50 must be adjusted to reduce the dripping amount of the liquid 3¾ 51, so as to prevent the flow direction of the liquid crystal 51 from being difficult to control because the dripping amount is too large. And the liquid crystal 51 is in contact with the sealing element & 4, the sealing element 5 4 or the liquid crystal 51 is deteriorated, which affects the quality of the screen display. As shown in FIG. 4A, the distance between the dripping devices 48 of the second embodiment of the present invention is different depending on the distance between the position where the liquid crystal 51 is dropped on the first substrate 52 and the sealing member 54. different. Take the left drip device 4 8 b, the middle drip device 4 8 c, and the right drip device 4 8 d on the same line as an example. The left drip device 48b, the middle drip device 48c, and the right drip device 4 are examples. The distance between 8d is (bc) and (cd) respectively; the left drip device 48b and the sealing element extending to the left of the line 5 are connected to the left. The distance on the left side of 4 is b '. The right drip device 48d extends straight to the right and seal element 54. The distance to the right of the transfer is d. When the distance b on the left side is greater than the distance d on the right side, that is, b '> d' then (b — c) > (c-d). When the distance b on the left side is smaller than the distance d on the right side, that is, b '< d' (b-c) < (c-d). So when a, > c, (a — b) >(bc); b '> d, then (b-c) >(c-d); c' > e, then 1 (c -d) > (d-e). Therefore, the distances between the dripping devices 48a, 48b, 48c, 48d, and 48e are (a-b) > (b-c) > (c-d) > (d-e).

Page 14 1225566 V. Description of the invention (π) As shown in the fourth figure C, when the liquid crystal 51 drops to the liquid crystal accommodating space 56, it will spread to the surroundings due to its dependence. Taking the dripping device 4 8 a as an example, the liquid crystal 5 1 has a large amount of dripping, so it will spread quickly and fill the area around it. If the distance from the adjacent dripping device 4 8 b is too small, then It is easy to contact the dripping liquid crystal 5 1 of the dripping device 4 8 b too quickly, and the proper use of the dripping liquid crystal 5 1 of the dripping device 4 8 b cannot flow to the surroundings; Larger dripping devices 4 8 a and 4 8 b have a large space to allow the liquid crystal 5 1 located on the first substrate 5 2 to flow, and the characteristics of the liquid crystal 51 flowing to the periphery can be properly used to allow the liquid crystal 5 1 can quickly and evenly fill the liquid crystal accommodating space 5 6, speeding up the liquid crystal filling process. And the dripping devices 4 8 d and 4 8 e that are closest to the sealing element 5 4 of the liquid crystal 51 are less dripping, which makes it difficult for the liquid crystal 5 1 to flow to the safe distance e (the minimum safety distance e is 5 mm). Within the range, the liquid crystal 51 can be prevented from contacting the sealing element 5 4, but at the same time, the distance (d-e) between the dripping devices 4 8 d and 4 8 e is small, and both the dripping devices 4 8 d and 4 8 e can be made. The space between them is easily filled by the LCD 5 1 'save filling time. Moreover, the characteristic that the liquid crystal 51 can diffuse to the surroundings can be properly used, and the plurality of drip devices 48 can be arranged in a radial distribution, so that the liquid crystal 51 can be dropped on the first substrate 52 as shown in FIG. 4B. And accelerate the efficiency of the liquid crystal 51 filling the liquid crystal accommodating space 56 of the first substrate 52. And in order to reduce when a few dripping devices 48 are in a state, the entire filling liquid crystal manufacturing process is stagnant and cannot be operated, the present invention also designs that each dripping device 48 can be disassembled individually; if the dripping device 48 is in a state and cannot be operated, You can

Page 15 1225566 5. Disassembly and maintenance of the description of the invention (12), while repairing the dripping equipment 48, the filling liquid crystal process can also continue to operate to ensure the operation rate. The fifth figure is a flowchart of the liquid crystal filling process of the present invention. The first step 40 is to first determine that the liquid crystal diluo device controls the liquid crystal diluo to be between 0.5 mg to 10 mg, and determine the starting point and end point of the sealing element. Not engaged. The second step 42 adjusts the amount of liquid crystal dripping to an optimal amount by using the viscosity of the liquid crystal and the size of the substrate; including a larger amount of liquid crystal dripping from a dripping device farther from the sealing element, and a dripping adjacent to it The equipment has a large spacing. The third step 44 is to drop the liquid crystal on the substrate. The fourth step 46 is to perform a sealing step between the two substrates, and at the same time, make sure that the sealing element is completely tight. In the present invention, an opening is left in the sealing element, and when sealing the two substrates, the sealing element is squeezed to expand and connect in a direction parallel to the substrate, which reduces the difficulty in controlling the width of the starting point and the end point of the sealing element. Non-uniformity. At the same time, the safe distance between the dripping liquid crystal and the sealing element is 5 mm, which reduces the liquid crystal contacting the sealing element due to accidental direct dripping or excessive flow on the substrate, and reduces the changes caused by the contact between the liquid crystal and the sealing element. Improve the sealing quality of the sealing element. At the same time, by limiting the amount of dripping of each drop of the liquid crystal to between 0.5 and 10 mg, it can reduce the damage caused by affecting the state of the alignment film and the spacer, and increase the yield.

Page 16 1225566 V. Explanation of the invention (13) The difference in the size of the substrate, the viscosity of the liquid crystal, the distance between the sealing elements, and other factors are used to adjust the amount of liquid crystal dripping. The distance of the dripping device achieves the purpose of speeding up the liquid crystal filling process. The invention also designs that each dripping device can be disassembled individually to reduce the situation that the entire filling liquid crystal manufacturing process will stagnate when the dripping device occurs. Therefore, even if the dripping equipment cannot be operated due to the situation, it can be disassembled and repaired. While repairing the damaged dripping equipment, the liquid crystal filling process can continue to operate to ensure the overall operating efficiency. The above description is only a preferred embodiment of the present invention and is not intended to limit the scope of patents for which the present invention is applied; all other equivalent changes or modifications made without departing from the spirit disclosed by the present invention shall be included in the following Within the scope of patent application.

Page 17 1225566 Brief description of the drawings 5. [Simplified description of the drawings] The first diagram is a cross-sectional view of a liquid crystal display; the second diagram is a diagram of a conventional liquid crystal dripping process; the third diagram is a diagram of the invention when the liquid crystal is dripping Figure 4A is a side view of the second embodiment of the present invention; Figure 4B is a top view of the second embodiment of the present invention; Figure 4C is a perspective view of a liquid crystal dropped on a substrate; and Figure 5 is a diagram of a liquid crystal filling process of the present invention flow chart. Representative symbols of the main parts: 2 liquid crystal 3 liquid crystal accommodating space 4 first substrate 6 second substrate 8 sealing element 9 protruding point 1 0 transparent electrode 1 2 an empty electrode in the alignment film preparation room Jingjing penetrates the liquid and liquid 4 6 7 8 9 0 1—- 11 11 11 1i

1225566 Illustration of the diagram 2 2 First substrate, 2 3 Liquid crystal accommodating space 2 4 Liquid crystal layer 2 6 Sealing element 2 8 Sealing element 2 Starting point 3 0 Sealing element 2 6 Ending point 3 2 Parallel line 3 4 Parallel Line 40 controls the amount of liquid crystal dripping between 0.5 mg and 10 mg, and confirms that the start and end points of the sealing element are not connected. 4 2 Adjusts the amount of liquid crystal dripping and the position of liquid crystal matching the type of liquid crystal and the size of the substrate. 4 4 On the substrate Diluo LCD 4 6 Seal the substrate, and confirm that the sealing elements are completely tightly sealed 4 8 Dripping equipment 4 8 a ~ 4 8 e Dripping equipment 5 0 Dripping volume adjustment button 5 1 Liquid crystal 5 2 First substrate 5 4 sealing element 56 liquid crystal accommodating space 5 8 second substrate A safety distance a to e dripping device 4 8 a to 4 8 e relative distance from the sealing element 5 4

Page 19 1225566 Brief description of the drawings, a ', b' and c 'dripping equipment 4 8 a, 4 8 b and 4 8 c and the relative distance between the sealing element 5 4 page 20-

Claims (1)

1225566 Case No. 92106295 Amendment VI. Patent application scope 7. Liquid crystal filling process such as patent application scope item 1, wherein the above-mentioned liquid crystal drops on the liquid crystal accommodating space and the liquid crystal accommodating space is located on the substrate The minimum distance between the edges is 5 mm. 8. For the liquid crystal filling process of item 1 of the scope of patent application, wherein the amount of dripping of the liquid crystal mentioned above is proportional to the position of the dripping on the liquid crystal accommodating space and the closest edge distance of the liquid crystal accommodating space on the substrate. 9. The liquid crystal filling process of item 1 of the patent application scope includes a sealing element adhered to the substrate to define an edge of the liquid crystal accommodating space, and the sealing element has an unbonded starting point and an ending point. 10. If the liquid crystal filling process of item 9 of the patent application scope includes the substrate sealing another substrate to join the starting point and the ending point of the sealing element 11. A liquid crystal filling device, including: A substrate includes a sealing element adhered to the substrate to define a liquid crystal accommodating space, the sealing element having a point and an end point, the starting point and the end point are not connected; and a plurality of dripping devices are disposed adjacent to the substrate to drip The liquid crystals are dropped in the liquid crystal accommodating space, and each of the dripping devices has a dripping amount adjusting button to adjust the dripping amount of the liquid crystals of each of the dripping devices. 1225566 on page 22 _Case No. 921Q6295_Year Month Amendment_ VI. Patent application range 12, such as the liquid crystal filling device of the 11th patent application range, wherein any three of the above-mentioned plural dripping devices are adjacent to each other The left drip device, a middle drip device, and a right drip device. 'When the positions of the liquid crystals dropped are straight, the liquid crystal dropped by the left drip device and the straight line extend to the left of the sealing element. The relative distance is a left distance, and the distance between the liquid crystal dropped by the right dropping device and the straight line extending to the right of the sealing element is a right distance. When the left distance is less than the right distance, adjust the The left drip device is closer to the middle drip device than the right drip device. If the left distance is greater than the right distance, adjust the position of the left drip device to be farther from the middle drip device than the right drip device. . 13. For a liquid crystal filling device according to item 11 of the scope of patent application, wherein the starting point and the ending point of the above-mentioned sealing element will be in close contact when sealing the substrate and another substrate. 14. For the liquid crystal filling device according to item 11 of the scope of patent application, wherein the starting point and the end point of the above-mentioned sealing element are respectively located at two end points of two parallel flat lines. 15. For liquid crystal filling equipment in the scope of application for patent No. 11 item, where the above-mentioned dripping equipment is damaged, it can be dismantled and repaired separately during the process of dropping these liquid crystals.