CN113534543A

CN113534543A - Crystal filling system and crystal filling method

Info

Publication number: CN113534543A
Application number: CN202110870466.7A
Authority: CN
Inventors: 陈仰宏; 杨小刚; 谭勉; 陈跃东
Original assignee: Unicorn Electric Shenzhen Co ltd
Current assignee: Unicorn Electric Shenzhen Co ltd
Priority date: 2021-07-30
Filing date: 2021-07-30
Publication date: 2021-10-22

Abstract

The application provides a crystal filling system and a crystal filling method. The crystal filling system comprises a control part; the vacuum pump assembly is connected with the perfusion chamber and is in signal connection with the control part and used for extracting air in the perfusion chamber under the control of the control part and enabling the perfusion chamber to form a vacuum state with a set vacuum degree; the liquid crystal bearing mechanism is at least partially positioned in the pouring chamber; the liquid crystal bearing mechanism positioned in the pouring chamber comprises a first part fixed relative to the pouring chamber and a second part capable of moving relative to the pouring chamber, one of the first part and the second part is used for bearing liquid crystal to be poured, and the other of the first part and the second part is used for bearing a liquid crystal box to be poured; the liquid crystal bearing mechanism is in signal connection with the control part and is used for moving the second part under the control of the control part so as to enable the liquid crystal to be poured and the liquid crystal box to be poured to be far away or close to each other; and the recharging gas micro-flow input valve group is connected to the filling chamber and is in signal connection with the control part, and is used for inputting recharging gas into the filling chamber under the control of the control part.

Description

Crystal filling system and crystal filling method

Technical Field

The application belongs to the technical field of liquid crystal manufacturing, and particularly relates to a crystal filling system and a crystal filling method.

Background

The liquid crystal display is widely applied to intelligent equipment in various fields as a man-machine interaction interface of the intelligent equipment. The display principle of the liquid crystal display is as follows: the liquid crystal display has the advantages that certain voltage is applied to the upper electrode and the lower electrode of the liquid crystal display, liquid crystal molecular chains between the upper electrode and the lower electrode are twisted, light passes through or is closed in the liquid crystal box, and accordingly the display function is embodied. Based on this, the response speed of the liquid crystal to the driving voltage is an important index for evaluating the photoelectric performance of the liquid crystal, and generally, the response speed is as high as possible.

In the prior art, the liquid crystal box formed by the upper electrode, the lower electrode and the frame glue is reduced from 6-8 μm to 3-4 μm, so that the distortion time of a liquid crystal molecular chain is reduced, and the aim of improving the response speed of the liquid crystal is fulfilled. However, the technical means for improving the response speed of the liquid crystal has adverse effects on other aspects of liquid crystal injection manufacturing, which are specifically expressed in the following aspects:

first, the above-mentioned prior art is difficult to achieve the required vacuum and the perfusion time is long. On the premise of adopting the same vacuum pump filling machine, taking two different box thicknesses with the same surface area and the same circuit pattern as examples, such as the box thicknesses of 6 μm and 3 μm, the time spent for vacuumizing to the same vacuum degree is several times that of the former. The reason is that: the inner cavity of the liquid crystal box consisting of the upper and lower layers of conductive indium tin oxide substrates, the plastic lining material and the epoxy frame glue is uneven, and when the granularity of the plastic lining material determining the thickness of the box is reduced, the difficulty of exhausting gas in the cavity is increased, so that the vacuumizing time reaching the process requirement is prolonged.

The liquid crystal filling process can be understood as the inverse of the evacuation process. When the cavity of the liquid crystal box is pumped to the required vacuum degree, the liquid crystal on the filling tray is fully contacted with the filling opening of the liquid crystal box, and then the filling chamber is filled with nitrogen. At the moment, a certain pressure difference exists between the interior of the cavity of the liquid crystal box and the filling chamber, and the liquid crystal on the filling tray is sucked into the cavity of the liquid crystal box until the cavity is filled. When the thickness of the liquid crystal box is reduced, the cavity gap of the liquid crystal box is reduced, and in addition, the inner cavity of the liquid crystal box is uneven, and the filling time of the liquid crystal is correspondingly prolonged. Therefore, if the evacuation time and the liquid crystal filling time are not prolonged, insufficient or defective liquid crystal filling may occur.

Secondly, the prior art is easy to generate poor liquid crystal scouring. In order to solve the problem of low production efficiency caused by the small cell thickness of the liquid crystal cell, the related countermeasure is to increase the vacuum degree of the liquid crystal filling chamber from about 3Pa to 1Pa or less. However, as the degree of vacuum increases, the pressure difference between the liquid crystal cell cavity and the filling chamber increases, which increases the impact force when the liquid crystal is sucked into the cavity instantly. The liquid crystal box has one layer of directional and height-consistent grooves adhered to the inner wall of the cavity, the polyimide layer is the wall with directional and pre-tilt angle grooves, and the directional consistency of the grooves is the key factor of the ordered arrangement of liquid crystal molecules on the polyimide layer. In the crystal filling process, the impact of liquid crystal flow on the polyimide layer or the indirect impact generated by the displacement of the plastic balls caused by the liquid crystal flow can damage the directional pretilt angle of the polyimide layer or gather the plastic balls, and finally the directional capability of the polyimide layer is weakened to form the phenomenon of poor flushing of the injection port.

Disclosure of Invention

The embodiment of the application aims to provide a crystal filling system and a crystal filling method, which can realize good crystal filling of a thick liquid crystal box of a bottom box on the premise of not changing the power of a vacuumizing pump set and improving the vacuum degree of a filling chamber.

In order to achieve the purpose, the technical scheme adopted by the application is as follows: providing a crystal filling system, comprising:

a perfusion chamber;

a control unit;

the vacuum pump assembly is connected with the perfusion chamber and is in signal connection with the control part and used for extracting air in the perfusion chamber under the control of the control part and enabling the perfusion chamber to form a vacuum state with a set vacuum degree;

the liquid crystal bearing mechanism is at least partially positioned in the pouring chamber; the liquid crystal bearing mechanism positioned in the pouring chamber comprises a first part fixed relative to the pouring chamber and a second part movable relative to the pouring chamber, wherein one of the first part and the second part is used for bearing liquid crystal to be poured, and the other of the first part and the second part is used for bearing a liquid crystal box to be poured; the liquid crystal bearing mechanism is in signal connection with the control part and is used for moving the second part under the control of the control part so as to enable the liquid crystal to be poured and the liquid crystal box to be poured to be far away or close to each other;

the recharging gas micro-flow input valve group is connected with the filling chamber and is in signal connection with the control part, and is used for inputting recharging gas into the filling chamber under the control of the control part.

In one embodiment, the vacuum pump assembly includes a vacuum pump set and a vacuum valve, the vacuum valve is connected to the perfusion chamber, and the vacuum pump set is connected to the vacuum valve; the vacuum pump group comprises at least one vacuum pump connected in series;

the vacuum pump set and the vacuum valve are in signal connection with the control part, and the control part is used for controlling the vacuum valve and the vacuum pump set to be opened and closed in real time.

In one embodiment, the recharge fluid micro-flow input valve set comprises a numerical control pressure proportional valve, a numerical control flowmeter and an electromagnetic valve which are sequentially connected, wherein the electromagnetic valve is connected to the perfusion chamber, and the numerical control pressure proportional valve is used for connecting a recharge fluid reservoir or a recharge fluid generator;

the numerical control pressure proportional valve, the numerical control flowmeter and the electromagnetic valve are all in signal connection with the control part.

In one embodiment, the crystal filling system further comprises a vacuum sensor, wherein the vacuum sensor is arranged inside the filling chamber and used for acquiring the current vacuum degree inside the filling chamber in real time;

the vacuum sensor is in signal connection with the control part, and the control part is used for controlling the vacuum pump assembly according to the current vacuum degree acquired by the vacuum sensor.

In one embodiment, the liquid crystal bearing mechanism further comprises a lifting part, wherein the lifting part comprises a driving part, a transmission part and an execution part which are sequentially connected in a transmission manner; wherein the content of the first and second substances,

the driving part and the transmission part are positioned outside the perfusion chamber, the execution part is in transmission connection with one end of the transmission part is positioned outside the perfusion chamber, and one end of the execution part, which is far away from the transmission part, is positioned inside the perfusion chamber and is in transmission connection with the second part.

In one embodiment, the crystal filling system further comprises a support frame, the support frame is provided with a support platform, and the filling chamber is supported above the support platform;

the driving part and the transmission part are positioned below the supporting platform, and the execution part penetrates through the bottom wall of the perfusion chamber and is connected to the bottom wall in a sealing mode.

In one embodiment, the vacuum pump group comprises a direct pump and a roots pump which are connected in series, and the direct pump is connected to the vacuum valve; the direct connection pump and the roots pump are in signal connection with the control part.

The application provides a irritate brilliant system's beneficial effect lies in:

compared with the prior art, the crystal filling system provided by the application does not change the power of the vacuum pump set, does not improve the vacuum degree value inside the filling chamber, can extract the air in the filling chamber in a manner of triggering oscillation according to a set established program under the control of the control part and enable the filling chamber to form a vacuum state with a set vacuum degree, the fluctuation of the vacuum degree can trigger the relaxation oscillation effect of the liquid crystal box to be filled, the relaxation oscillation effect is favorable for the air discharge of the inner cavity, the air suction time is further shortened, and the production efficiency is improved. And under the control of the control part, the back-filling gas micro-flow input valve set is controlled to input back-filling gas into the filling chamber in a flow mode from small to large according to a set established program, and the back-filling gas micro-flow input valve set is adopted to realize numerical control management of flow change rate, so that the suction speed of liquid crystal to be filled is slow and controllable, further the adverse effects of impact on a polyimide layer in the liquid crystal box to be filled or displacement and aggregation of plastic balls caused by liquid crystal flow in the suction process of the liquid crystal to be filled are avoided, and the problem of poor flushing of the filling port is solved.

Another object of the present application is to provide a crystal filling method of the crystal filling system, the method includes:

controlling and starting a vacuum pump assembly through a control part, wherein the vacuum pump assembly performs vacuum pumping on the interior of the perfusion chamber for a set time under the control of the control part so as to enable the interior of the perfusion chamber to form a vacuum state with a set vacuum degree;

the liquid crystal bearing mechanism is controlled to start by the control part, and the liquid crystal bearing mechanism moves the first part of the liquid crystal bearing mechanism, wherein the second part of the liquid crystal bearing mechanism is aligned with the first part of the liquid crystal bearing mechanism under the control of the control part, so that liquid crystal to be poured is fully contacted with the pouring opening of the liquid crystal box to be poured;

the control part controls and starts the recharging gas micro-flow input valve group, the recharging gas micro-flow input valve group inputs recharging gas into the interior of the filling chamber under the control of the control part, so that pressure difference is formed between the inner cavity of the liquid crystal box to be filled and the interior of the filling chamber, and liquid crystal to be filled is adsorbed into the inner cavity of the liquid crystal box to be filled;

the liquid crystal bearing mechanism is controlled to be started by the control part, and the liquid crystal bearing mechanism moves the second part to be far away from the first part under the control of the control part so as to separate the liquid crystal to be poured and the injection port of the liquid crystal box to be poured.

In one embodiment, the method further comprises:

acquiring a current vacuum value inside the perfusion chamber in real time through a vacuum sensor;

the control part detects the current vacuum value acquired by the vacuum sensor in real time and controls a vacuum valve in the vacuum pump assembly to be opened or closed according to the current vacuum value, so that the current vacuum value inside the perfusion chamber is increased along with the opening of the vacuum valve or decreased along with the closing of the vacuum valve.

In one embodiment, the control part at least comprises a numerical control vacuum gauge in signal connection with the vacuum sensor and a PLC controller in signal connection with the numerical control vacuum gauge; the method further comprises the following steps:

the numerical control vacuum gauge detects the current vacuum value obtained by the vacuum sensor in real time and sends the current vacuum value to the PLC;

the PLC controller receives the current vacuum value and controls the vacuum valve to be opened or closed according to the current vacuum value, so that the current vacuum value inside the pouring chamber is increased along with the opening of the vacuum valve or decreased along with the closing of the vacuum valve.

In one embodiment, the PLC controller at least includes a receiving unit, a determining unit, and a control unit; the method further comprises the following steps:

the receiving unit receives the current vacuum value detected by the numerical control vacuum gauge and sends the current vacuum value to the judging unit;

the judging unit receives the current vacuum value and judges whether the current vacuum value reaches a first preset trigger oscillation vacuum value or not, so that a judging result is obtained and sent to the control unit;

if the judgment result is that the current vacuum degree is increased to the first preset triggered oscillation vacuum degree value, the control unit controls the vacuum valve to be closed according to the judgment result and enables the vacuum valve to be in a closed state within a set time, so that the current vacuum degree value inside the pouring chamber is decreased to a second preset triggered oscillation vacuum degree value; wherein the first preset trigger oscillation vacuum degree value is greater than the second preset trigger oscillation vacuum degree value;

and if the judgment result indicates that the current vacuum degree value is not increased to the first preset triggering oscillation vacuum degree value, the control unit controls the vacuum valve to be continuously in an open state according to the judgment result.

In an embodiment, if the determination result is that the current vacuum degree is increased to the first preset triggered oscillation vacuum degree value, the control unit controls the vacuum valve to close according to the determination result and enables the vacuum valve to be in a closed state within a set time, so as to reduce the current vacuum degree value inside the perfusion chamber to a second preset triggered oscillation vacuum degree value; wherein, after the first preset trigger oscillation vacuum degree value is greater than the second preset trigger oscillation vacuum degree value, still include:

the judging unit receives the current vacuum value and judges whether the current vacuum value is reduced to the second preset trigger oscillation vacuum value or not, a judging result is obtained, and the judging result is sent to the control unit;

if the determination result is that the current vacuum degree value is reduced to the second preset triggered oscillation vacuum degree value, the control unit controls the vacuum valve to be opened according to the determination result and enables the vacuum valve to be in an opened state within a set time, so that the current vacuum degree value inside the perfusion chamber is increased to the first preset triggered oscillation vacuum degree value, and the steps of claim 7 are repeated;

and if the judgment result indicates that the current vacuum degree value does not drop to the second preset trigger oscillation vacuum degree value, the control unit controls the vacuum valve to be in a closed state continuously according to the judgment result.

the judging unit receives the current vacuum value and judges whether the current vacuum value reaches a preset pouring vacuum value or not, a judging result is obtained, and the judging result is sent to the control unit;

if the judgment result is that the current vacuum degree is increased to the preset pouring vacuum degree value, the control unit sends an execution instruction to a lifting part of the liquid crystal bearing mechanism according to the judgment result so as to control the driving part to drive a second part to move for a set distance relative to a first part, so that the liquid crystal to be poured is in full contact with the pouring opening of the liquid crystal to be poured;

and if the judgment result indicates that the current vacuum degree is not increased to the preset pouring vacuum degree value, the control unit controls the vacuum valve to be continuously in an open state according to the judgment result.

In one embodiment, the method further comprises:

after the lifting part drives the second part to move for a set distance relative to the first part, the lifting part sends a feedback signal to the control unit, and the control unit controls the vacuum valve to be closed according to the feedback signal.

In one embodiment, after the lifting part drives the second part to move for a set distance relative to the first part, the lifting part sends a feedback signal to the control unit, and the control unit starts the recharge fluid micro-flow input valve set according to the feedback signal and controls the input flow of the recharge fluid micro-flow input valve set to be gradually changed from small to large to be input into the recharge fluid.

In an embodiment, after the method for controlling the feedback gas micro-flow input valve set to open the feedback gas micro-flow input valve set and controlling the input flow of the feedback gas micro-flow input valve set to gradually change from small to large to input the feedback gas by the control unit, the method further includes:

the judging unit receives the current vacuum value and judges whether the current vacuum value is reduced to an atmospheric pressure value or not, a judging result is obtained, and the judging result is sent to the control unit;

if the judgment result is that the current vacuum degree is reduced to the atmospheric pressure value and the set liquid crystal injection time is reached, the control unit sends an execution instruction to the lifting part of the liquid crystal bearing mechanism according to the judgment result so as to control the driving part to drive the second part to move for a set distance relative to the first part, so that the liquid crystal to be injected and the injection port of the liquid crystal to be injected are far away from each other, and the inflation gas micro-flow input valve group is controlled to be closed according to the judgment result;

and if the judgment result is that the current vacuum degree is not reduced to the atmospheric pressure value, the control unit controls the recharge fluid micro-flow input valve group to be continuously in an open state according to the judgment result.

The crystal filling method provided by the application has the beneficial effects that:

compared with the prior art, the crystal filling method provided by the application does not change the power of the vacuum pump set, does not improve the vacuum degree value inside the filling chamber, can extract air in the filling chamber in a vibration triggering mode according to a set established program under the control of the control part and enables the filling chamber to form a vacuum state with a set vacuum degree, and the fluctuation of the vacuum degree can trigger the relaxation oscillation effect of the liquid crystal box to be filled, so that the relaxation oscillation effect is beneficial to the air discharge of the inner cavity, the air extraction time is further shortened, and the production efficiency is improved. And under the control of the control part, the back-filling gas micro-flow input valve set is controlled to input back-filling gas into the filling chamber in a flow mode from small to large according to a set established program, and the back-filling gas micro-flow input valve set is adopted to realize numerical control management of flow change rate, so that the suction speed of liquid crystal to be filled is slow and controllable, further the adverse effects of impact on a polyimide layer in the liquid crystal box to be filled or displacement and aggregation of plastic balls caused by liquid crystal flow in the suction process of the liquid crystal to be filled are avoided, and the problem of poor flushing of the filling port is solved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a schematic view of a crystal filling system provided in an embodiment of the present application;

fig. 2 is a first flowchart of a crystal filling method according to an embodiment of the present application;

fig. 3 is a second flowchart of a crystal filling method according to an embodiment of the present application;

fig. 4 is a third flowchart of a crystal filling method provided in the embodiment of the present application;

fig. 5 is a fourth flowchart of a crystal filling method according to an embodiment of the present application;

fig. 6 is a fifth flowchart of a crystal filling method according to an embodiment of the present application;

fig. 7 is a sixth flowchart of a crystal filling method according to an embodiment of the present application;

fig. 8 is a seventh flowchart of a crystal filling method according to an embodiment of the present application.

Wherein, in the figures, the respective reference numerals:

10. a perfusion chamber; 20. a control unit; 30. a vacuum pump assembly; 40. a liquid crystal carrying mechanism; 50. a feedback gas micro-flow input valve set; 60. a vacuum sensor; 70. a support frame;

201. a numerical control vacuum gauge; 202. a PLC controller; 203. a human-machine interface;

301. a vacuum pump set; 302. a vacuum valve; 301a, a direct pump; 301b, roots pump;

401. a first portion; 402. a second portion; 403. a lifting part; 403a, a driving part; 403b, a transmission part; 403c, an execution unit;

501. a numerically controlled pressure proportional valve; 502. a numerical control flowmeter; 503. an electromagnetic valve.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

The crystal filling system and the crystal filling method provided by the embodiment of the application are now described.

Referring to fig. 1, the liquid crystal filling system according to the embodiment of the present application includes a filling chamber 10, a control unit 20, a vacuum pump assembly 30, a liquid crystal carrying mechanism 40, and a feedback gas micro-flow input valve.

The filling chamber 10 has a filling chamber having a certain volume for accommodating the liquid crystal to be filled and the liquid crystal box to be filled.

The vacuum pump assembly 30 is connected to the perfusion chamber 10 and is connected to the control unit 20 through signals, and is configured to pump air from the perfusion chamber 10 under the control of the control unit 20 and form a vacuum state with a set vacuum degree in the perfusion chamber 10.

Wherein at least part of the liquid crystal bearing mechanism 40 is positioned in the perfusion chamber 10; the liquid crystal carrying mechanism 40 positioned in the pouring chamber 10 comprises a first part 401 fixed relative to the pouring chamber 10 and a second part 402 movable relative to the pouring chamber 10, wherein one of the first part 401 and the second part 402 is used for carrying liquid crystal to be poured, and the other one of the first part 401 and the second part 402 is used for carrying a liquid crystal box to be poured; the liquid crystal bearing mechanism 40 is in signal connection with the control part 20 and is used for moving the second part 402 under the control of the control part 20 so as to enable the liquid crystal to be poured and the liquid crystal box to be poured to be far away or close to each other;

the recharging gas micro-flow input valve set 50 is connected to the filling chamber 10 and is connected to the control unit 20 by signals, and is used for inputting the recharging gas into the filling chamber 10 under the control of the control unit 20.

The utility model provides a irritate brilliant system, do not change vacuum pump package 301's power, do not improve and fill the inside vacuum degree value of room 10, under the control of control division 20, can be according to the set program with the air that triggers in the mode extraction that vibrates and make and fill the vacuum state that forms and have the settlement vacuum in the room 10, the fluctuation of vacuum can cause and wait to fill the liquid crystal box and produce relaxation's shock effect, this relaxation shock effect is favorable to the air escape of interior cavity, and then shorten air exhaust time, promote production efficiency. Under the control of the control part 20, the feedback gas micro-flow input valve set 50 is controlled to input the feedback gas into the filling chamber 10 in a flow mode from small to large according to a set established program, and the numerical control management of the flow change rate is realized by adopting the feedback gas micro-flow input valve set 50, so that the suction speed of the liquid crystal to be filled is slow and controllable, the bad influences of impact on a polyimide layer in the liquid crystal box to be filled or plastic ball displacement, aggregation and the like caused by liquid crystal flow in the suction process of the liquid crystal to be filled are avoided, and the problem of bad flushing of the filling opening is solved.

In one embodiment, vacuum pump assembly 30 includes a vacuum pump set 301 and a vacuum valve 302, vacuum valve 302 is connected to perfusion chamber 10, vacuum pump set 301 is connected to vacuum valve 302; the vacuum pump set 301 comprises at least one vacuum pump in series; the vacuum pump set 301 and the vacuum valve 302 are connected to the control unit 20 by signals, and the control unit 20 is used for controlling the opening and closing of the vacuum valve 302 and the vacuum pump set 301 in real time.

Preferably, the vacuum pump set 301 comprises a direct pump 301a and a roots pump 301b which are connected in series, wherein the direct pump 301a is connected to a vacuum valve 302; the direct pump 301a and the roots pump 301b are both signal-connected to the control unit 20.

Wherein, when the perfusion system needs 1000pa or less than 1000pa working pressure, the use requirement can be satisfied by the direct-connected pump 301 a. When the perfusion system needs more than 1000pa of working pressure, the use requirement can be met through the cooperative work of the direct connection pump 301a and the roots pump 301 b.

In one embodiment, the recharge fluid micro-flow input valve set 50 comprises a numerical control pressure proportional valve 501, a numerical control flow meter 502 and an electromagnetic valve 503 which are connected in sequence, the electromagnetic valve 503 is connected to the perfusion chamber 10, and the numerical control pressure proportional valve 501 is used for connecting a recharge fluid reservoir or a recharge fluid generator; the numerical control pressure proportional valve 501, the numerical control flow meter 502 and the electromagnetic valve 503 are all connected with the control part 20 by signals.

In one embodiment, the crystal filling system further includes a vacuum sensor 60, wherein the vacuum sensor 60 is disposed inside the filling chamber 10 and is configured to obtain a current vacuum degree inside the filling chamber 10 in real time; the vacuum sensor 60 is connected to the control unit 20, and the control unit 20 is configured to control the vacuum pump assembly 30 according to the current vacuum degree obtained by the vacuum sensor 60.

In one embodiment, the liquid crystal supporting mechanism 40 further includes a lifting portion 403, and the lifting portion 403 includes a driving portion 403a, a transmission portion 403b, and an executing portion 403c, which are sequentially connected in a transmission manner; wherein, the driving part 403a and the transmission part 403b are located outside the perfusion chamber 10, one end of the execution part 403c connected to the transmission part 403b in a transmission manner is located outside the perfusion chamber 10, and one end of the execution part 403c far away from the transmission part 403b is located inside the perfusion chamber 10 and connected to the second part 402 in a transmission manner.

In the embodiment of the present application, the first portion 401 may be a liquid crystal bracket fixedly connected to the inner wall of the filling chamber 10, and may support thereon a liquid crystal cell to be filled, and the second portion 402 may be a liquid crystal tray drivingly connected to the executing portion 403c, and may support thereon a liquid crystal cell to be filled.

In the embodiment of the present application, the driving portion 403a is preferably a driving motor, the transmission portion 403b is preferably two bevel gears engaged with each other, one of the bevel gears is in transmission connection with a driving shaft of the driving motor, the other bevel gear is in transmission connection with a transmission lead screw, the transmission lead screw is in transmission connection with the execution portion 403c, and the rotation of the driving motor is converted into the linear lifting motion of the execution portion 403c through the engagement of the bevel gears and the transmission lead screw.

In one embodiment, the crystal filling system further comprises a support frame 70, wherein the support frame 70 has a support platform, and the filling chamber 10 is supported above the support platform; the driving part 403a and the transmission part 403b are located below the supporting platform, and the actuating part 403c penetrates through the bottom wall of the perfusion chamber 10 and is connected to the bottom wall in a sealing manner. The vacuum pump unit 301 is located at one side of the support frame 70, and the control unit 20 is disposed at the other side of the support frame 70 opposite to the vacuum pump unit 301.

In this embodiment, the vacuum pump set 301 is installed at one side of the perfusion chamber 10, and is connected to the perfusion chamber 10 through a vacuum pipe and a vacuum valve 302 on the pipe for controlling the opening and closing of the pipe.

In the embodiment of the present application, the control unit 20 includes a numerically controlled vacuum gauge 201 signal-connected to the vacuum sensor 60, a PLC controller 202 signal-connected to the numerically controlled vacuum gauge 201, a human-machine interface 203, and other electronic control elements. The vacuum sensor 60 is configured to detect a current vacuum value obtained by the vacuum sensor 60 in real time. The PLC controller 202 at least includes a receiving unit, a determining unit, and a control unit, and each unit has different functions in different steps of the corresponding method of the perfusion system, taking the following perfusion method as an example.

In the liquid crystal filling system provided by the embodiment of the present application, the liquid crystal box to be filled is placed on the first portion 401 inside the filling chamber 10, and the injection port of the liquid crystal box to be filled is aligned with the injection medium absorbed with a proper amount of liquid crystal on the second portion 402, that is, the liquid crystal to be filled. The vacuum pump set 301 is started by closing the closing door of the filling chamber 10, the dynamic vacuum value is obtained by the vacuum sensor 60 in the filling chamber 10, and the PLC controller 202 controls each electrical component to complete the vacuum pumping process of the liquid crystal filling process such as opening and closing the vacuum pipeline, lifting the second part 402 and the like according to the obtained relevant information such as the vacuum value, the vacuum time and the like. Parameters such as vacuum degree value, vacuum time, opening and closing times of the vacuum valve 302 in the vacuum pipeline and the like in the vacuum pumping process can be compiled according to the technological requirements of products, and the vacuum degree climbing management device has a single-stage or multi-stage vacuum degree climbing management function so as to avoid the generation of the phenomena of displacement and aggregation of the supporting plastic balls in the liquid crystal box along with airflow caused by rapid air pumping. In addition, in the process of vacuumizing, the vacuum valve 302 in the connecting pipeline between the vacuum pump set 301 and the perfusion chamber 10 can be opened and closed under the control of the PLC 202, so that the vacuum degree value of the perfusion chamber 10 is enabled to fluctuate, the fluctuation of the vacuum degree value further induces the relaxation oscillation effect of the liquid crystal box, the relaxation oscillation effect is beneficial to discharging air in the liquid crystal box, the air suction time is shortened, and the production efficiency is improved.

When the vacuum condition of the liquid crystal pouring is met, the second part 402 is driven by the lifting part 403 to lift to the liquid crystal pouring position, so that the pouring opening of the liquid crystal box is fully contacted with the medium, which is absorbed with a proper amount of liquid crystal, of the second part 402. The vacuum valve 302 of the line is closed under the control of the PLC controller 202. Next, under the control of the PLC controller 202, the feedback gas micro-flow input valve set 50 starts to fill the filling chamber 10 with nitrogen gas at a very low flow rate, and at this time, the liquid crystal attached to the medium is slowly sucked into the liquid crystal cell until the liquid crystal cell fills the inner cavity of the whole liquid crystal cell, thereby completing the filling process of the liquid crystal. The parameters of nitrogen filling flow and filling time can be programmed according to the process requirements of the product. Because when filling nitrogen gas, adopted and inflated the gaseous micro-flow input valves 50 and realized the numerical control management and control of flow rate of change, make the liquid crystal be inhaled the speed slowly controllable, can avoid the liquid crystal to inhale the in-process and produce the impact to the polyimide layer in the liquid crystal box or because of liquid crystal stream causes plastic ball aversion, gathering and produce harmful effects, solved the filling opening and erode the problem of badness.

Referring to fig. 2 to 8, another object of the embodiments of the present application is to provide a crystal filling method of the crystal filling system, the method including:

i, preparation before operation:

a. confirmation of liquid crystal box filling opening and filling medium (liquid crystal to be filled) position

The liquid crystal box is placed on the first part 401 in the filling chamber 10, in a manual mode, a corresponding picture of the human-computer interface 203 in the control part 20 is clicked, so that the second part 402 is driven by the lifting part 403 to ascend to a critical position of liquid crystal filling, an external mobile CCD (mobile camera) is used for acquiring an image between an injection port of the liquid crystal box and an injection medium, and the effective pre-alignment of the injection port and the injection medium is confirmed.

b. Confirmation of the addition amount of the liquid crystal to be poured

Before the liquid crystal is poured, the amount of the liquid crystal adsorbed by the pouring medium on the second part 402 is confirmed, and the ratio of the amount of the liquid crystal to the amount of the liquid crystal is 6ml (liquid crystal)/1 m2 (product surface area) is taken as an example.

c. Liquid crystal filling process parameter setting

Clicking the corresponding window of the human-computer interface 203 in the control part 20, respectively filling and storing the process parameters of the liquid crystal box to be filled, such as the vacuumizing degree value, the vacuumizing time, the vacuum degree of the triggered oscillation function, the oscillation frequency, the nitrogen filling flow, the nitrogen filling time, the filling maintaining time and the like, and finishing the setting of the filling process conditions.

II, liquid crystal injection operation

Confirming that the liquid crystal injection working mode in the man-machine interface 203 of the control part 20 is in an automatic state, placing a liquid crystal box to be injected on a first part 401 inside the injection chamber 10, closing a sealing door of the injection chamber 10, starting a liquid crystal injection key, activating a liquid crystal injection program, sending an instruction by the PLC controller 202 to start the vacuum pump set 301, and then starting the vacuum valve 302 between the vacuum pump set 301 and the injection chamber 10 by the instruction sent by the PLC controller 202 successively, so that the equipment enters a vacuumizing process.

The specific steps and flows are as follows:

101. the control part 20 controls the starting of the vacuum pump assembly 30, and the vacuum pump assembly 30 performs vacuum pumping on the interior of the perfusion chamber 10 for a set time under the control of the control part 20, so that the interior of the perfusion chamber 10 is in a vacuum state with a set vacuum degree;

102. the liquid crystal bearing mechanism 40 is controlled to be started by the control part 20, and the liquid crystal bearing mechanism 40 moves the first part 401 in which the second part 402 is aligned under the control of the control part 20 so that the liquid crystal to be poured is fully contacted with the pouring opening of the liquid crystal box to be poured;

103. the control part 20 controls the start-up recharging gas micro-flow input valve set 50, the recharging gas micro-flow input valve set 50 inputs recharging gas into the filling chamber 10 under the control of the control part 20, so that pressure difference is formed between the inner cavity of the liquid crystal box to be filled and the inner cavity of the filling chamber 10, and liquid crystal to be filled is adsorbed into the inner cavity of the liquid crystal box to be filled;

104. the liquid crystal carrying mechanism 40 is controlled to be started by the control part 20, and the liquid crystal carrying mechanism 40 moves the second part 402 away from the first part 401 under the control of the control part 20 so as to separate the liquid crystal to be poured and the pouring opening of the liquid crystal box to be poured.

In one embodiment, the method step 101 further includes:

1011. acquiring the current vacuum value inside the perfusion chamber 10 in real time through the vacuum sensor 60;

1012. the control part 20 detects the current vacuum value acquired by the vacuum sensor 60 in real time, and controls the vacuum valve 302 in the vacuum pump assembly 30 to open or close according to the current vacuum value, so that the current vacuum value inside the perfusion chamber 10 rises with the opening of the vacuum valve 302 or falls with the closing of the vacuum valve 302.

In one embodiment, the control unit 20 at least comprises a digital control vacuum gauge 201 connected to the vacuum sensor 60 and a PLC controller 202 connected to the digital control vacuum gauge 201; the method step 1012 further includes:

1012a, detecting the current vacuum degree value acquired by the vacuum sensor 60 in real time by the numerical control vacuum gauge 201 and sending the current vacuum degree value to the PLC 202;

plc controller 202 receives the current vacuum level and controls vacuum valve 302 to open or close according to the current vacuum level such that the current vacuum level inside perfusion chamber 10 increases with opening of vacuum valve 302 or decreases with closing of vacuum valve 302.

In one embodiment, the PLC controller 202 at least includes a receiving unit, a determining unit, and a controlling unit; the method further comprises the following steps:

1012b-1, the receiving unit receives the current vacuum value detected by the numerical control vacuum gauge 201 and sends the current vacuum value to the judging unit;

1012b-2, receiving the current vacuum value by the judging unit, judging whether the current vacuum value reaches a first preset trigger oscillation vacuum value, obtaining a judging result and sending the judging result to the control unit;

1012 b-3', if the judgment result is that the current vacuum degree is increased to the first preset triggered oscillation vacuum degree value, the control unit controls the vacuum valve 302 to be closed according to the judgment result and enables the vacuum valve 302 to be in a closed state within a set time, so that the current vacuum degree value inside the perfusion chamber 10 is reduced to a second preset triggered oscillation vacuum degree value; the first preset trigger oscillation vacuum degree value is larger than the second preset trigger oscillation vacuum degree value;

1012 b-3'. if the determination result is that the current vacuum level is not increased to the first preset trigger oscillation vacuum level, the control unit controls the vacuum valve 302 to be continuously in the open state according to the determination result.

In an embodiment, if the determination result is that the current vacuum degree is increased to the first preset triggered oscillation vacuum degree value, the control unit controls the vacuum valve 302 to close according to the determination result and makes the vacuum valve 302 in a closed state within a set time, so as to decrease the current vacuum degree value inside the perfusion chamber 10 to the second preset triggered oscillation vacuum degree value; wherein, after first preset trigger shock vacuum degree value is greater than the preset trigger shock vacuum degree value of second, still include:

1012b-4. the receiving unit receives the current vacuum degree value detected by the numerical control vacuum gauge 201 and sends the current vacuum degree value to the judging unit;

1012b-5, receiving the current vacuum value by the judging unit, judging whether the current vacuum value is reduced to a second preset trigger oscillation vacuum value or not, obtaining a judging result and sending the judging result to the control unit;

1012 b-6', if the determination result is that the current vacuum degree value is decreased to the second preset oscillation-triggering vacuum degree value, the control unit controls the vacuum valve 302 to be opened according to the determination result and enables the vacuum valve 302 to be in an open state within a set time, so as to enable the current vacuum degree value inside the perfusion chamber 10 to be increased to the first preset oscillation-triggering vacuum degree value, and repeats the steps as claimed in claim 7;

1012 b-6'. if the determination result is that the current vacuum degree value does not drop to the second preset trigger oscillation vacuum degree value, the control unit controls the vacuum valve 302 to be in the closed state continuously according to the determination result.

In one embodiment, the PLC controller 202 at least includes a receiving unit, a determining unit, and a controlling unit; the method 102 further comprises:

1021. the receiving unit receives the current vacuum value detected by the numerical control vacuum gauge 201 and sends the current vacuum value to the judging unit;

1022. the judging unit receives the current vacuum value and judges whether the current vacuum value reaches a preset pouring vacuum value or not, a judging result is obtained, and the judging result is sent to the control unit;

1023' if the judgment result is that the current vacuum degree is increased to the preset pouring vacuum degree value, the control unit sends an execution instruction to the lifting part 403 of the liquid crystal bearing mechanism 40 according to the judgment result so as to control the driving part 403a to drive the second part 402 to move a set distance relative to the first part 401, so that the liquid crystal to be poured is fully contacted with the pouring opening of the liquid crystal to be poured;

1023", if the judgment result shows that the current vacuum degree is not increased to the preset pouring vacuum degree value, the control unit controls the vacuum valve 302 to be in an open state according to the judgment result.

In an embodiment, after the step 1023', the method further includes:

1024. after the lifting part 403 drives the second part 402 to move a set distance relative to the first part 401, the lifting part 403 sends a feedback signal to the control unit, and the control unit controls the vacuum valve 302 to close according to the feedback signal.

In an embodiment, after the step 1023', the method further includes:

1031. after the lifting part 403 drives the second part 402 to move for a set distance relative to the first part 401, the lifting part 403 sends a feedback signal to the control unit, and the control unit starts the recharge fluid micro-flow input valve set 50 according to the feedback signal and controls the input flow of the recharge fluid micro-flow input valve set 50 to be input into the recharge fluid gradually from small to large.

In one embodiment, after the controlling unit turns on the feedback gas micro-flow input valve set 50 according to the feedback signal and controls the input flow of the feedback gas micro-flow input valve set 50 to be gradually changed from small to large and input into the feedback gas, the method further includes:

1032. the receiving unit receives the current vacuum value detected by the numerical control vacuum gauge 201 and sends the current vacuum value to the judging unit;

1033. the judging unit receives the current vacuum value and judges whether the current vacuum value is reduced to the atmospheric pressure value or not, a judging result is obtained, and the judging result is sent to the control unit;

1034', if the current vacuum degree is decreased to the atmospheric pressure value according to the determination result, the control unit sends an execution instruction to the lifting part 403 of the liquid crystal bearing mechanism 40 according to the determination result to control the driving part 403a to drive the second part 402 to move a set distance relative to the first part 401, so as to make the injection ports of the liquid crystal to be poured and the liquid crystal to be poured far away from each other, and controls the feedback gas micro-flow input valve set 50 to close according to the determination result;

1034, if the current vacuum degree is not reduced to the atmospheric pressure value, the control unit controls the feedback gas micro-flow input valve set 50 to be continuously in the open state according to the determination result.

In the crystal filling method provided by the application, in the process of vacuumizing, when the vacuum degree value reaches the set first preset oscillation triggering vacuum degree value (about 100 Pa), the vacuum valve 302(1201) between the vacuum pump set 301 and the filling chamber 10 is repeatedly opened and closed according to the set oscillation times under the control of the PLC controller 202. When the vacuum valve 302 is closed, the vacuum degree value of the filling chamber 10 is reduced to 2-3Pa due to the sudden loss of the air suction attraction of the vacuum pump set 301, and the liquid crystal box to be filled in the filling chamber 10 is reduced from high to low due to the vacuum degree value, so that the gap of the inner cavity of the liquid crystal box is reduced from large (note: the gap of the inner cavity is reduced when the air pressure outside the liquid crystal box is increased). When the numerical control vacuum gauge 201 in the control unit 20 detects that the vacuum degree value in the filling chamber 10 decreases to a second preset oscillation vacuum degree value (for example, about 5 Pa), the PLC controller 202 sends an instruction to re-open the vacuum valve 302 to resume the vacuum pumping function, and at this time, the cell gap increases from small to large (note: the cell gap increases when the air pressure outside the cell decreases). Thus, the system reciprocates the above actions according to the set oscillation times (depending on the product process requirement) under the control of the PLC controller 202 to complete the vacuum oscillation.

As is well known, the cavity of the liquid crystal cell is covered with rugged ITO (indium tin oxide) electrodes, so that the change of the gap of the cavity of the liquid crystal cell is beneficial to overflowing or redistributing a small amount of air remained in the cavity from the ITO electrodes, and finally the air is discharged out of the cavity. After the oscillating vacuum-pumping process is completed, the vacuum-pumping is continued under the instruction of the PLC controller 202 until the filling vacuum degree (about 1-2Pa) required for liquid crystal filling is satisfied.

After the oscillating vacuum pumping procedure is completed, the filling chamber 10 reaches the required filling vacuum degree, and the vacuum degree signal is obtained by the numerical control vacuum gauge 201 in the control unit 20 and transmitted to the control unit of the PLC controller 202. The PLC controller 202 simultaneously sends an execution command (ascending command) to the ascending and descending part 403, and the second part 402 carrying a proper amount of liquid crystal to be poured ascends to the liquid crystal pouring position, at which time the pouring opening of the liquid crystal box is fully contacted with the pouring medium; the PLC 202 sends a command of closing the vacuum valve 302, then the PLC 202 sends a command of opening to the feedback gas micro-flow input valve set 50, and fills nitrogen into the filling chamber 10 at a micro flow of 30-50ml/min under the control of the control unit, at the moment, the air pressure of the liquid crystal box inner cavity is smaller than the air pressure of the filling chamber 10, so that a siphon effect is formed between the liquid crystal box inner cavity and the liquid crystal attached in the medium, and the liquid crystal is slowly sucked into the liquid crystal box until the whole liquid crystal box inner cavity is filled. The flow control of the recharge fluid micro-flow input valve set 50 can be edited according to the requirements of the liquid crystal injection process and stored in the PLC 202, so that the nitrogen flow in different stages in the liquid crystal injection process can be continuously controlled from small to large, and the condition that a polyimide layer (PI layer) in a cavity is damaged due to displacement or aggregation of a plastic ball supporting a liquid crystal box caused by the fact that the speed of instantaneous liquid crystal sucking into the cavity in the initial stage of liquid crystal injection is too high is avoided.

After the liquid crystal filling procedure is completed, the numerical control vacuum gauge 201 in the control part 20 detects that the vacuum degree value of the filling chamber 10 is in an atmospheric pressure state and transmits information to the control unit of the PLC controller 202, then the PLC controller 202 sends a descending instruction to the ascending and descending part 403, the second part 402 loaded with a proper amount of liquid crystal descends to a standby position, and at this time, the liquid crystal box and the injection medium are in a separation state; then, the PLC controller 202 sends an instruction to the acousto-optic prompt unit therein, the acousto-optic prompt is triggered, the operator can open the door of the filling chamber 10 to take out the filled liquid crystal cell, and the liquid crystal filling operation is completed in the whole process.

The crystal filling method provided by the application does not change the power of the vacuum pump set 301, does not improve the vacuum degree value inside the filling chamber 10, can extract the air in the filling chamber 10 in a manner of triggering oscillation according to a set established program under the control of the control part 20, and enables the vacuum state with a set vacuum degree to be formed in the filling chamber 10, the fluctuation of the vacuum degree can cause the relaxation oscillation effect of the liquid crystal box to be filled, the relaxation oscillation effect is favorable for the air discharge of the inner cavity, the air extraction time is further shortened, and the production efficiency is improved. Under the control of the control part 20, the feedback gas micro-flow input valve set 50 is controlled to input the feedback gas into the filling chamber 10 in a flow mode from small to large according to a set established program, and the numerical control management of the flow change rate is realized by adopting the feedback gas micro-flow input valve set 50, so that the suction speed of the liquid crystal to be filled is slow and controllable, the bad influences of impact on a polyimide layer in the liquid crystal box to be filled or plastic ball displacement, aggregation and the like caused by liquid crystal flow in the suction process of the liquid crystal to be filled are avoided, and the problem of bad flushing of the filling opening is solved.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A crystal filling system, comprising:

a perfusion chamber (10);

a control unit (20);

a vacuum pump assembly (30) connected to the perfusion chamber (10) and in signal connection with the control part (20) and used for extracting air in the perfusion chamber (10) under the control of the control part (20) and enabling a vacuum state with a set vacuum degree to be formed in the perfusion chamber (10);

a liquid crystal carrying mechanism (40) located at least partially within the perfusion chamber (10); the liquid crystal carrying mechanism (40) positioned in the pouring chamber (10) comprises a first part (401) fixed relative to the pouring chamber (10) and a second part (402) capable of moving relative to the pouring chamber (10), wherein one of the first part (401) and the second part (402) is used for carrying liquid crystal to be poured, and the other one of the first part (401) and the second part (402) is used for carrying a liquid crystal box to be poured; the liquid crystal carrying mechanism (40) is in signal connection with the control part (20) and is used for moving the second part (402) under the control of the control part (20) to enable the liquid crystal to be poured and the liquid crystal box to be poured to be far away from or close to each other;

the recharging gas micro-flow input valve group (50) is connected to the filling chamber (10) and is in signal connection with the control part (20) and used for inputting recharging gas into the filling chamber (10) under the control of the control part (20).

2. The crystal filling system of claim 1, wherein:

the vacuum pump assembly (30) comprises a vacuum pump set (301) and a vacuum valve (302), the vacuum valve (302) is connected to the perfusion chamber (10), the vacuum pump set (301) is connected to the vacuum valve (302); the vacuum pump group (301) comprises at least one vacuum pump connected in series;

the vacuum pump set (301) and the vacuum valve (302) are in signal connection with the control part (20), and the control part (20) is used for controlling the opening and closing of the vacuum valve (302) and the vacuum pump set (301) in real time.

3. The crystal filling system of claim 1, wherein:

the recharging gas micro-flow input valve group (50) comprises a numerical control pressure proportional valve (501), a numerical control flow meter (502) and an electromagnetic valve (503) which are sequentially connected, the electromagnetic valve (503) is connected to the perfusion chamber (10), and the numerical control pressure proportional valve (501) is used for being connected with a recharging gas storage device or a recharging gas generator;

the numerical control pressure proportional valve (501), the numerical control flow meter (502) and the electromagnetic valve (503) are in signal connection with the control part (20).

4. The crystal filling system of claim 1, wherein:

the crystal filling system further comprises a vacuum sensor (60), wherein the vacuum sensor (60) is arranged inside the filling chamber (10) and is used for acquiring the current vacuum degree inside the filling chamber (10) in real time;

the vacuum sensor (60) is in signal connection with the control part (20), and the control part (20) is used for controlling the vacuum pump assembly (30) according to the current vacuum degree acquired by the vacuum sensor (60).

5. The crystal filling system of claim 1, wherein:

the liquid crystal bearing mechanism (40) further comprises a lifting part (403), and the lifting part (403) comprises a driving part (403a), a transmission part (403b) and an execution part (403c) which are sequentially connected in a transmission manner; wherein the content of the first and second substances,

the driving part (403a) and the transmission part (403b) are positioned outside the perfusion chamber (10), one end of the execution part (403c) in transmission connection with the transmission part (403b) is positioned outside the perfusion chamber (10), and one end of the execution part (403c) far away from the transmission part (403b) is positioned inside the perfusion chamber (10) and in transmission connection with the second part (402).

6. The crystal filling system of claim 5, wherein: the crystal filling system also comprises a support frame (70), wherein the support frame (70) is provided with a support platform, and the filling chamber (10) is supported above the support platform;

the driving part (403a) and the transmission part (403b) are positioned below the supporting platform, and the actuating part (403c) penetrates through the bottom wall of the perfusion chamber (10) and is connected with the bottom wall in a sealing mode.

7. The crystal filling system of claim 2, wherein:

the vacuum pump set (301) comprises a direct-connection pump (301a) and a roots pump (301b) which are connected in series, and the direct-connection pump (301a) is connected to the vacuum valve (302); the direct-connection pump (301a) and the roots pump (301b) are in signal connection with the control part (20).

8. A crystal filling method is characterized by comprising the following steps:

controlling and starting a vacuum pump assembly (30) through a control part (20), wherein the vacuum pump assembly (30) performs vacuum pumping on the interior of the perfusion chamber (10) for a set time under the control of the control part (20) so as to enable the interior of the perfusion chamber (10) to form a vacuum state with a set vacuum degree;

the control part (20) controls to start a liquid crystal bearing mechanism (40), and the liquid crystal bearing mechanism (40) moves a first part (401) of which the second part (402) is aligned with under the control of the control part (20) so that liquid crystal to be poured is fully contacted with the pouring opening of the liquid crystal box to be poured;

the control part (20) controls and starts a recharging gas micro-flow input valve group (50), the recharging gas micro-flow input valve group (50) inputs recharging gas into the interior of the perfusion chamber (10) under the control of the control part (20), so that pressure difference is formed between the inner cavity of the liquid crystal box to be perfused and the interior of the perfusion chamber (10), and then the liquid crystal to be perfused is adsorbed into the inner cavity of the liquid crystal box to be perfused;

the liquid crystal bearing mechanism (40) is controlled to be started by the control part (20), and the liquid crystal bearing mechanism (40) moves the second part (402) to be far away from the first part (401) under the control of the control part (20) so as to separate the liquid crystal to be poured and the injection port of the liquid crystal box to be poured.

9. The crystal-filling method of claim 8, wherein: the method further comprises the following steps:

acquiring a current vacuum value inside the perfusion chamber (10) in real time through a vacuum sensor (60);

the control part (20) detects the current vacuum value acquired by the vacuum sensor (60) in real time and controls a vacuum valve (302) in the vacuum pump assembly (30) to be opened or closed according to the current vacuum value, so that the current vacuum value inside the perfusion chamber (10) is increased along with the opening of the vacuum valve (302) or decreased along with the closing of the vacuum valve (302).

10. The crystal-filling method of claim 9, wherein:

the control part (20) at least comprises a numerical control vacuum gauge (201) connected with the vacuum sensor (60) through signals and a PLC (202) connected with the numerical control vacuum gauge (201) through signals; the method further comprises the following steps:

the numerical control vacuum gauge (201) detects the current vacuum value acquired by the vacuum sensor (60) in real time and sends the current vacuum value to the PLC (202);

the PLC controller (202) receives the current vacuum value and controls the vacuum valve (302) to be opened or closed according to the current vacuum value, so that the current vacuum value inside the perfusion chamber (10) is increased along with the opening of the vacuum valve (302) or is decreased along with the closing of the vacuum valve (302).

11. The crystal-filling method of claim 10, wherein:

the PLC controller (202) at least comprises a receiving unit, a judging unit and a control unit; the method further comprises the following steps:

the receiving unit receives the current vacuum value detected by the numerical control vacuum gauge (201) and sends the current vacuum value to the judging unit;

if the judgment result is that the current vacuum degree is increased to the first preset triggered oscillation vacuum degree value, the control unit controls the vacuum valve (302) to be closed according to the judgment result and enables the vacuum valve (302) to be in a closed state within a set time, so that the current vacuum degree value in the pouring chamber (10) is reduced to a second preset triggered oscillation vacuum degree value; wherein the first preset trigger oscillation vacuum degree value is greater than the second preset trigger oscillation vacuum degree value;

if the judgment result is that the current vacuum degree value is not increased to the first preset triggering oscillation vacuum degree value, the control unit controls the vacuum valve (302) to be continuously in an open state according to the judgment result.

12. The crystal-filling method of claim 11, wherein: if the judgment result is that the current vacuum degree is increased to the first preset triggered oscillation vacuum degree value, the control unit controls the vacuum valve (302) to be closed according to the judgment result and enables the vacuum valve (302) to be in a closed state within a set time, so that the current vacuum degree value in the pouring chamber (10) is decreased to a second preset triggered oscillation vacuum degree value; wherein, after the first preset trigger oscillation vacuum degree value is greater than the second preset trigger oscillation vacuum degree value, still include:

if the determination result is that the current vacuum value is decreased to the second preset oscillation-triggering vacuum value, the control unit controls the vacuum valve (302) to be opened according to the determination result and enables the vacuum valve (302) to be in an open state within a set time, so as to enable the current vacuum value inside the perfusion chamber (10) to be increased to the first preset oscillation-triggering vacuum value, and the steps of claim 7 are repeated;

if the judgment result is that the current vacuum degree value is not reduced to the second preset oscillation triggering vacuum degree value, the control unit controls the vacuum valve (302) to be in a closed state continuously according to the judgment result.

13. The crystal-filling method of claim 10, wherein:

if the judgment result is that the current vacuum degree is increased to the preset pouring vacuum degree value, the control unit sends an execution instruction to a lifting part (403) of the liquid crystal bearing mechanism (40) according to the judgment result so as to control a driving part (403a) to drive a second part (402) to move a set distance relative to a first part (401) to enable the liquid crystal to be poured to be fully contacted with the pouring opening of the liquid crystal to be poured;

and if the judgment result indicates that the current vacuum degree is not increased to the preset pouring vacuum degree value, the control unit controls the vacuum valve (302) to be continuously in an open state according to the judgment result.

14. The crystal-filling method of claim 13, wherein the method further comprises:

after the lifting part (403) drives the second part (402) to move for a set distance relative to the first part (401), the lifting part (403) sends a feedback signal to the control unit, and the control unit controls the vacuum valve (302) to be closed according to the feedback signal.

15. The crystal-filling method of claim 13, wherein:

after the lifting part (403) drives the second part (402) to move for a set distance relative to the first part (401), the lifting part (403) sends a feedback signal to the control unit, and the control unit starts the recharge fluid micro-flow input valve set (50) according to the feedback signal and controls the input flow of the recharge fluid micro-flow input valve set (50) to be gradually changed from small to large to input the recharge fluid.

16. The crystal filling method according to claim 15, wherein the control unit turns on the feedback gas micro-flow input valve set (50) according to the feedback signal and controls the input flow of the feedback gas micro-flow input valve set (50) to be gradually changed from small to large and then input into the feedback gas method, further comprising:

if the judgment result is that the current vacuum degree is reduced to the atmospheric pressure value and the set liquid crystal injection time is reached, the control unit sends an execution instruction to a lifting part (403) of the liquid crystal bearing mechanism (40) according to the judgment result so as to control the driving part (403a) to drive a second part (402) to move for a set distance relative to a first part (401) to enable the liquid crystal to be poured and the injection port of the liquid crystal to be poured to be far away from each other, and controls the inflation gas micro-flow input valve set (50) to be closed according to the judgment result;

and if the judgment result is that the current vacuum degree is not reduced to the atmospheric pressure value, the control unit controls the recharge fluid micro-flow input valve set (50) to be continuously in an open state according to the judgment result.