CN218585149U - Liquid crystal dripping device - Google Patents
Liquid crystal dripping device Download PDFInfo
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- CN218585149U CN218585149U CN202121000906.5U CN202121000906U CN218585149U CN 218585149 U CN218585149 U CN 218585149U CN 202121000906 U CN202121000906 U CN 202121000906U CN 218585149 U CN218585149 U CN 218585149U
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- liquid crystal
- gas
- nozzle
- transmission pipeline
- glass substrate
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 204
- 239000000758 substrate Substances 0.000 claims abstract description 56
- 239000011521 glass Substances 0.000 claims abstract description 46
- 230000005540 biological transmission Effects 0.000 claims abstract description 28
- 239000007921 spray Substances 0.000 claims abstract description 6
- 239000007789 gas Substances 0.000 claims description 83
- 230000001105 regulatory effect Effects 0.000 claims description 13
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 10
- 229910052757 nitrogen Inorganic materials 0.000 claims description 5
- 238000009792 diffusion process Methods 0.000 abstract description 22
- 238000010586 diagram Methods 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000009931 harmful effect Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The embodiment of the utility model discloses a liquid crystal dripping device, which comprises a liquid crystal container, a liquid crystal transmission pipeline, a liquid crystal nozzle, at least one gas transmission pipeline and at least one gas nozzle; the liquid crystal nozzle is communicated with the liquid crystal container through a liquid crystal transmission pipeline, and liquid crystal is dripped onto the glass substrate by the liquid crystal nozzle to form liquid crystal droplets; the gas nozzle is communicated with a gas source through a gas transmission pipeline, and the gas nozzle sprays gas to the liquid crystal droplets to enable the liquid crystal droplets to diffuse towards a preset direction. The embodiment of the utility model provides a liquid crystal device of dripping can solve the uneven problem of liquid crystal diffusion, improves liquid crystal display panel's yield.
Description
Technical Field
The utility model relates to a liquid crystal display panel makes technical field, especially relates to a liquid crystal device of dripping.
Background
The liquid crystal display panel is an important component of the liquid crystal display, the quality of the liquid crystal display panel is related to the overall performance of the liquid crystal display, and the appearance of liquid crystals in the liquid crystal display panel is one of important parameters influencing the quality of the liquid crystal display panel. The liquid crystal display panel comprises two glass substrates arranged oppositely and a liquid crystal layer positioned between the two glass substrates. After the two glass substrates are prepared, liquid crystal is dropped on one of the glass substrates one by a liquid crystal dropping device, and then the liquid crystal is pressed and attached to the other glass substrate, so that the liquid crystal display panel is formed.
In the prior art, fig. 1 is a schematic diagram of a liquid crystal droplet formed on a glass substrate by using a conventional liquid crystal dropping device, and as shown in fig. 1, a plurality of liquid crystal droplets 231' are formed on a first glass substrate 21 (an array substrate or a color filter substrate). The alignment film 211 is disposed on the upper surface of the first glass substrate 21, and the liquid crystal droplets 231' diffuse fast along the alignment direction x (as shown by the dotted line in fig. 1) but diffuse slowly along the non-alignment direction y, so that when the two glass substrates are pressed and bonded, the alignment direction x is punctured or contaminated, even the liquid crystal leaks, and bubbles are generated in the non-alignment direction y. Fig. 2 is a schematic structural diagram of a liquid crystal display panel formed by performing pressure bonding of glass substrates based on the structure shown in fig. 1, and as shown in fig. 2, after the first glass substrate 21 and the second glass substrate 22 (color filter substrate or array substrate) are subjected to pressure bonding, liquid crystals in the liquid crystal layer 23 are unevenly distributed, a part of the liquid crystals overflow out of the rubber frame 24 along the alignment direction x, and a region without liquid crystals exists along the non-alignment direction y, and bubbles are generated in the region. Therefore, the conventional liquid crystal dropping device cannot adjust the diffusion direction of the liquid crystal, and after the two glass substrates are pressed and bonded, the liquid crystal is not uniformly dispersed in the liquid crystal layer due to non-uniform liquid crystal diffusion, such as puncture or pollution, liquid crystal leakage and bubble generation, which often cause problems, and the yield of the liquid crystal display panel is affected.
SUMMERY OF THE UTILITY MODEL
An embodiment of the utility model provides a liquid crystal device of dripping to solve the uneven problem of liquid crystal diffusion, improve liquid crystal display panel's yield.
In order to achieve the above purpose, the embodiment of the present invention adopts the following scheme:
a liquid crystal dripping apparatus comprising: the liquid crystal nozzle comprises a liquid crystal container, a liquid crystal transmission pipeline, a liquid crystal nozzle, at least one gas transmission pipeline and at least one gas nozzle;
the liquid crystal nozzle is communicated with the liquid crystal container through a liquid crystal transmission pipeline, and liquid crystal is dripped onto the glass substrate by the liquid crystal nozzle to form liquid crystal drops;
the gas nozzle is communicated with a gas source through a gas transmission pipeline, and the gas nozzle sprays gas to the liquid crystal drops to enable the liquid crystal drops to diffuse towards a preset direction.
Optionally, the preset direction intersects with the alignment direction of the glass substrate;
the glass substrate is a color film substrate or an array substrate.
Optionally, a liquid crystal pump is connected to the liquid crystal transmission pipeline.
Optionally, a through hole is arranged on the liquid crystal pump, and the gas transmission pipeline is inserted into the through hole.
Optionally, the liquid crystal dropping device further includes: an air pressure regulating valve; the air pressure regulating valve is connected to the air transmission pipeline.
Optionally, the liquid crystal dropping device further includes: a controller; the air pressure regulating valve is electrically connected with the controller.
Optionally, the angle between the extending direction of the gas nozzle and the extending direction of the liquid crystal nozzle is adjustable; the extending direction of the liquid crystal nozzle is vertical to the plane of the glass substrate.
Optionally, the liquid crystal dropping device further comprises a motor, and the motor is connected with the gas nozzle.
Optionally, the gas source comprises compressed gas.
Optionally, the compressed gas comprises nitrogen.
The embodiment of the utility model provides a liquid crystal device of dripping through setting up gas nozzle, makes gas nozzle pass through gas transmission pipeline and gas source intercommunication to can instil into the liquid crystal on liquid crystal nozzle to the glass substrate, form the liquid crystal and drip the back, drip jet-propelled to this liquid crystal, make the liquid crystal drip to predetermine the direction and spread partly in advance, and then compensate the harmful effects that the liquid crystal diffusion inequality brought, improve liquid crystal display panel's yield.
Drawings
FIG. 1 is a schematic view of a liquid crystal droplet formed on a glass substrate using a conventional liquid crystal dropping device;
FIG. 2 is a schematic structural view of a liquid crystal display panel formed by applying glass substrates under pressure based on the structure shown in FIG. 1;
fig. 3 is a schematic structural diagram of a liquid crystal dropping device provided by an embodiment of the present invention;
fig. 4 is a schematic diagram of a liquid crystal drop formed on a glass substrate by using a liquid crystal dropping device provided by an embodiment of the present invention;
FIG. 5 is a schematic structural view of a liquid crystal display panel formed by applying glass substrates under pressure based on the structure shown in FIG. 4;
fig. 6 is a schematic structural diagram of another liquid crystal dropping device provided in an embodiment of the present invention;
fig. 7 is a schematic structural diagram of another liquid crystal dropping device according to an embodiment of the present invention.
Reference numerals:
1-a liquid crystal dropping device; 11-a liquid crystal container; 12-liquid crystal transport pipe; 13-a liquid crystal nozzle; 14-gas transmission pipeline; 15-gas nozzles; 16-a liquid crystal pump; 17-air pressure regulating valve; 18-a controller; 21-a first glass substrate; 211-alignment film; 22-a second glass substrate; 23-a liquid crystal layer; 231/231' -liquid crystal droplets; 24-glue frame; x-alignment direction; y-non-alignment direction.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be noted that, for convenience of description, the accompanying drawings only show some but not all of the structures related to the present invention, and in addition, the accompanying drawings only show the connection relationship of the structures, and the relative position relationship of the structures in the accompanying drawings represents the relative position relationship in the actual product.
Fig. 3 is a schematic structural diagram of a liquid crystal dropping device provided by an embodiment of the present invention, and referring to fig. 3, the liquid crystal dropping device 1 includes a liquid crystal container 11, a liquid crystal transmission pipeline 12, a liquid crystal nozzle 13, at least one gas transmission pipeline 14, and at least one gas nozzle 15; the liquid crystal nozzle 13 is communicated with the liquid crystal container 11 through a liquid crystal transmission pipeline 12, and the liquid crystal nozzle 13 drops liquid crystal on the glass substrate to form liquid crystal drops; the gas nozzle 15 is communicated with a gas source through a gas transmission pipeline 14, and the gas nozzle 15 sprays gas to the liquid crystal droplets to diffuse the liquid crystal droplets in a preset direction.
The preset direction can be, for example, a direction with a slow diffusion speed, and the liquid crystal droplets are diffused partially in advance in the direction with the slow diffusion speed by air injection so as to compensate the influence of uneven diffusion of the liquid crystal when the two glass substrates are pressed and attached; in addition, the preset direction can be any diffusion direction, and at the moment, the degree of diffusion in advance in the direction with low diffusion speed needs to be ensured to be larger so as to make up the influence of uneven diffusion of the liquid crystal when the two glass substrates are pressed and attached.
As described above, the presence of the alignment film, for example, causes a difference in the diffusion speed of the liquid crystal in different directions, resulting in uneven diffusion of the liquid crystal. Therefore, optionally, the preset direction intersects with the alignment direction of the glass substrate, wherein the glass substrate is a color film substrate or an array substrate.
Because the diffusion speed of the alignment direction is high, but the diffusion speed of the non-alignment direction is low, the preset direction can be set to be crossed with the alignment direction of the glass substrate, so that the liquid crystal can partially diffuse towards the non-alignment direction in advance to make up for the influence of uneven diffusion. And moreover, the preset direction is intersected with the alignment direction, so that the gas nozzle almost sprays gas in one direction, and the control is simpler.
Exemplarily, fig. 4 is a schematic diagram of a liquid crystal droplet formed on a glass substrate by using a liquid crystal dripping device provided by an embodiment of the present invention, referring to fig. 4, a liquid crystal droplet 231 is formed on a first glass substrate 21, and as can be seen from fig. 4, compared to fig. 1, since the liquid crystal dripping device 1 provided by an embodiment of the present invention injects gas to the liquid crystal droplet through a gas nozzle 15, a part of diffusion of the liquid crystal droplet 231 along a predetermined direction (e.g., a non-alignment direction y) is completed in advance. Thus, when the two glass substrates are pressed and attached, the liquid crystal amount in the alignment direction is reduced due to the increase of the liquid crystal amount in the non-alignment direction, so that the problems of puncture, pollution or leakage and the like can not occur even if the liquid crystal diffusion speed in the direction is high, and the bubbles can not be generated even if the liquid crystal diffusion speed in the direction is low because the non-alignment direction is partially diffused, and finally, a uniformly distributed liquid crystal layer can be formed. Fig. 5 is a schematic structural view of a liquid crystal display panel formed by laminating glass substrates under pressure based on the structure shown in fig. 4, and as shown in fig. 5, a first glass substrate 21 and a second glass substrate 22 are laminated with liquid crystal in a liquid crystal layer 23 uniformly distributed therebetween.
In a specific manufacturing process, after the liquid crystal nozzle 13 drops liquid crystal onto the glass substrate to form one liquid crystal drop, the liquid crystal dropping device 1 may move along the non-alignment direction y to drop another liquid crystal drop at a next position, and during this movement, the gas nozzle 15 may be used to inject gas to the liquid crystal drop to advance the liquid crystal drop to partially diffuse the liquid crystal drop toward the non-alignment direction, and finally, a plurality of liquid crystal drops 231 shown in fig. 4 are formed on the first glass substrate 21.
For example, the gas source may use the gas existing on the production line, or a gas container dedicated for the liquid crystal dropping device may be provided, which is not limited by the embodiment of the present invention. The gas source is preferably a dry and clean gas to avoid affecting the quality of the liquid crystal display panel.
It should be noted that fig. 3 illustrates only an example in which the liquid crystal dropping device 1 includes 2 gas transmission pipes 14 and two gas nozzles 15, and the structure is not limited thereto, and the number of gas nozzles is not limited in the embodiment of the present invention.
The embodiment of the utility model provides a liquid crystal device of dripping through setting up gas nozzle, makes gas nozzle pass through gas transmission pipeline and gas source intercommunication to can instil into the liquid crystal on liquid crystal nozzle to the glass substrate, form the liquid crystal and drip the back, drip jet-propelled to this liquid crystal, make the liquid crystal drip to predetermine the direction and spread partly in advance, and then compensate the harmful effects that the liquid crystal diffusion inequality brought, improve liquid crystal display panel's yield.
In addition to the above embodiments, the structure of the liquid crystal dropping device can be optimized as follows.
Fig. 6 is a schematic structural diagram of another liquid crystal dropping device according to an embodiment of the present invention, referring to fig. 6, optionally, a liquid crystal pump 16 is connected to the liquid crystal transmission pipeline 12.
The liquid crystal pump 16 is provided to facilitate the extraction of liquid crystal from the liquid crystal container 11, and to control the volume of liquid crystal extracted from the liquid crystal container 11, thereby ensuring that a proper amount of liquid crystal is dropped onto the glass substrate.
With continued reference to fig. 6, optionally, a through hole is provided in the liquid crystal pump 16, and the gas delivery pipe 14 is inserted into the through hole.
Specifically, a through hole may be provided at an idle position of the liquid crystal pump 16, and the gas transmission pipe 14 may be inserted into the through hole of the liquid crystal pump 16, so that the gas transmission pipe 14 may be fixed by the liquid crystal pump 16, the gas nozzle 15 may be prevented from shaking, and the reliability of the liquid crystal dropping device 1 may be improved.
Optionally, the gas source comprises compressed gas. The compressed gas has larger fluidity after being output, thereby being capable of pushing the liquid crystal drops to diffuse towards a preset direction.
Optionally, the compressed gas comprises nitrogen. The nitrogen is stable and clean and is a common gas on a production line, so that the nitrogen can be used as a gas source. Other gases may be selected by one skilled in the art, and the embodiment of the present invention is not limited thereto.
Fig. 7 is a schematic structural diagram of another liquid crystal dropping device provided in an embodiment of the present invention, referring to fig. 7, optionally, the liquid crystal dropping device 1 further includes an air pressure regulating valve 17; the gas pressure regulating valve 17 is connected to the gas delivery pipe 14.
The pressure of the gas ejected from the gas nozzle 15 can be adjusted by providing the gas pressure adjusting valve 17, thereby controlling the degree of diffusion of the liquid crystal droplets in the predetermined direction. For example, the air pressure adjusting valve 17 may be an electronic adjusting valve or a mechanical adjusting valve, which is not limited in the embodiment of the present invention.
With continued reference to fig. 7, optionally, the liquid crystal dripping device 1 further comprises a controller 18; the air pressure regulating valve 17 is electrically connected to the controller 18.
In this embodiment, the air pressure regulating valve 17 is an electronic regulating valve, and the air pressure regulating valve 17 can regulate the pressure of the gas ejected from the gas nozzle 15 according to the output signal of the controller 18, so that the regulation accuracy is higher.
With continued reference to fig. 7, optionally, the angle between the direction of extension of the gas nozzle 15 and the direction of extension of the liquid crystal nozzle 13 is adjustable; the liquid crystal nozzle 13 extends in a direction perpendicular to the plane of the glass substrate.
The angle between the extending direction of the gas nozzle 15 and the extending direction of the liquid crystal nozzle 13 is adjustable, so that the gas nozzle 15 can spray gas towards different directions, liquid crystal droplets can be diffused towards different directions, different requirements are met, and the practicability of the liquid crystal dripping device is improved.
Optionally, the liquid crystal dropping device further comprises a motor, and the motor is connected with the gas nozzle.
In this embodiment, the rotation of the gas nozzle 15 is controlled by a motor, so that the angle between the extending direction of the gas nozzle 15 and the extending direction of the liquid crystal nozzle 13 can be adjusted. Those skilled in the art may also achieve this objective in any other known manner, and the embodiments of the present invention are not limited thereto.
It should be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles applied thereto. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.
Claims (10)
1. A liquid crystal dripping apparatus, comprising: the liquid crystal device comprises a liquid crystal container, a liquid crystal transmission pipeline, a liquid crystal nozzle, at least one gas transmission pipeline and at least one gas nozzle;
the liquid crystal nozzle is communicated with the liquid crystal container through the liquid crystal transmission pipeline, and liquid crystal is dripped onto the glass substrate by the liquid crystal nozzle to form liquid crystal drops;
the gas nozzle is communicated with a gas source through the gas transmission pipeline, and the gas nozzle sprays gas to the liquid crystal drops to enable the liquid crystal drops to diffuse towards a preset direction.
2. The liquid crystal dropping apparatus according to claim 1, wherein said predetermined direction intersects with an alignment direction of said glass substrate;
the glass substrate is a color film substrate or an array substrate.
3. The liquid crystal dripping device according to claim 1, wherein a liquid crystal pump is connected to the liquid crystal transport pipe.
4. The liquid crystal dripping device according to claim 3, wherein said liquid crystal pump is provided with a through hole, and said gas transmission pipe is inserted into said through hole.
5. The liquid crystal dripping apparatus according to claim 1, further comprising: an air pressure regulating valve; the air pressure regulating valve is connected to the gas transmission pipeline.
6. The liquid crystal dripping apparatus according to claim 5, further comprising: a controller; the air pressure regulating valve is electrically connected with the controller.
7. The liquid crystal dripping apparatus according to claim 1, wherein an angle between an extending direction of said gas nozzle and an extending direction of said liquid crystal nozzle is adjustable; the extending direction of the liquid crystal nozzle is perpendicular to the plane of the glass substrate.
8. The liquid crystal dripping apparatus according to claim 7, further comprising a motor connected to said gas nozzle.
9. The liquid crystal dripping apparatus according to claim 1 wherein said gas source comprises a compressed gas.
10. The liquid crystal dripping apparatus according to claim 9 wherein said compressed gas comprises nitrogen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121000906.5U CN218585149U (en) | 2021-05-11 | 2021-05-11 | Liquid crystal dripping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121000906.5U CN218585149U (en) | 2021-05-11 | 2021-05-11 | Liquid crystal dripping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218585149U true CN218585149U (en) | 2023-03-07 |
Family
ID=85359973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121000906.5U Active CN218585149U (en) | 2021-05-11 | 2021-05-11 | Liquid crystal dripping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218585149U (en) |
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2021
- 2021-05-11 CN CN202121000906.5U patent/CN218585149U/en active Active
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