CN115469486B - Display panel and manufacturing method thereof - Google Patents
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- CN115469486B CN115469486B CN202211037434.XA CN202211037434A CN115469486B CN 115469486 B CN115469486 B CN 115469486B CN 202211037434 A CN202211037434 A CN 202211037434A CN 115469486 B CN115469486 B CN 115469486B
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 15
- 239000000758 substrate Substances 0.000 claims abstract description 130
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 89
- 125000006850 spacer group Chemical group 0.000 claims abstract description 77
- 239000000203 mixture Substances 0.000 claims description 12
- 239000000178 monomer Substances 0.000 claims description 12
- 238000006116 polymerization reaction Methods 0.000 claims description 10
- 239000002904 solvent Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 9
- 239000007787 solid Substances 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 229920001730 Moisture cure polyurethane Polymers 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 4
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 230000005856 abnormality Effects 0.000 abstract description 7
- 230000002159 abnormal effect Effects 0.000 description 16
- 239000013078 crystal Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229920002120 photoresistant polymer Polymers 0.000 description 1
Classifications
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1339—Gaskets; Spacers; Sealing of cells
- G02F1/13394—Gaskets; Spacers; Sealing of cells spacers regularly patterned on the cell subtrate, e.g. walls, pillars
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
Abstract
The embodiment of the invention discloses a display panel and a manufacturing method thereof; the display panel comprises a first substrate, a second substrate, a liquid crystal layer and a plurality of spacer units, wherein the first substrate and the second substrate are oppositely arranged, the liquid crystal layer is arranged between the first substrate and the second substrate, the spacer units are arranged between the first substrate and the second substrate, and at least one spacer unit comprises at least one first opening arranged on the surface; according to the invention, the first opening is formed in the surface of the spacer unit, so that liquid crystal molecules can be contained, and when the display panel is extruded, the liquid crystal molecules in the first opening overflow, so that the generation of vacuum bubbles is reduced, and the display abnormality risk of the display panel is reduced.
Description
Technical Field
The invention relates to the field of display, in particular to a display panel and a manufacturing method thereof.
Background
In recent years, a liquid crystal display panel still occupies a place in the consumer market, in the liquid crystal display panel, a liquid crystal layer is filled between an upper substrate and a lower substrate, and a spacer unit is arranged, so that when the display panel is touched and pressed, the distance between the two substrates of the display panel is easy to be reduced, when the display panel is bent to the pressure of the spacer unit, the pressure of the spacer unit is equal to the atmospheric pressure, and especially in a low-temperature environment, the liquid crystal cannot be filled with the liquid crystal layer easily, vacuum bubbles are generated, and abnormal display of the display panel is caused.
Therefore, a display panel and a method for manufacturing the same are needed to solve the above-mentioned problems.
Disclosure of Invention
The invention provides a display panel and a manufacturing method thereof, which can solve the technical problem that a liquid crystal layer is easy to generate vacuum bubbles when the display panel is pressed at present.
The present invention provides a display panel, comprising:
A first substrate and a second substrate disposed opposite to each other;
A liquid crystal layer between the first substrate and the second substrate;
a plurality of spacer units located between the first substrate and the second substrate;
at least one of the spacer units comprises at least one first opening arranged on the surface.
Preferably, the spacer unit includes a support portion and a flexible portion surrounding the support portion; the hardness of the flexible portion is smaller than that of the supporting portion, and each first opening is formed in the surface of the flexible portion.
Preferably, at least two of the first openings are arranged to be mutually communicated.
Preferably, the area of the orthographic projection of the flexible portion on the first substrate is larger than the area of the orthographic projection of the spacer unit on the first substrate.
Preferably, the material of the flexible portion comprises a gel.
Preferably, the liquid crystal layer includes a plurality of liquid crystal molecules, each of the liquid crystal molecules has a long bar shape, and the liquid crystal molecules include a long axis and a short axis; the opening diameter of the first opening is larger than the maximum circumcircle diameter corresponding to the short axis of the liquid crystal molecules.
Preferably, the average opening diameter of the first opening of each of the spacer units is gradually increased in a direction from an edge of the display panel to a center of the display panel.
The invention also provides a manufacturing method of the display panel, which comprises the following steps:
providing a first substrate and a second substrate, forming a plurality of spacer units on the first substrate, or forming a plurality of spacer units on the second substrate;
forming at least one first opening on the surface of at least one spacer unit;
and aligning the first substrate and the second substrate, and forming a liquid crystal layer between the first substrate and the second substrate.
Preferably, the step of providing a first substrate and a second substrate, forming a plurality of spacer units on the first substrate, or forming a plurality of spacer units on the second substrate includes: providing a first substrate and a second substrate, forming a plurality of support portions and flexible portions surrounding the support portions on the first substrate, or forming a plurality of support portions and flexible portions surrounding the support portions on the second substrate to form each of the spacer units; the step of forming at least one first opening on the surface of at least one of the spacer units includes: forming at least one first opening on the surface of the flexible portion of at least one of the spacer units; wherein the hardness of the flexible portion is less than the hardness of the support portion.
Preferably, the step of providing a first substrate and a second substrate, forming a plurality of support portions and flexible portions surrounding the support portions on the first substrate, or forming a plurality of support portions and flexible portions surrounding the support portions on the second substrate, to form each of the spacer units includes: providing a first substrate and a second substrate, forming a plurality of supporting parts on the first substrate or forming a plurality of supporting parts on the second substrate; forming a gel pre-polymer liquid mixture comprising a plurality of gel monomers and a solvent on the support portion to form a flexible portion; the step of forming at least one first opening in a surface of the flexible portion of at least one of the spacer units includes: cooling the gel pre-polymerization liquid mixture to solidify the solvent into a first solid; and heating the gel pre-polymerization mixture to form gel from each gel monomer, and melting and removing the first solid to form a first opening correspondingly.
The invention has the beneficial effects that: according to the invention, the first opening is formed in the surface of the spacer unit, so that liquid crystal molecules can be contained, and when the display panel is extruded, the liquid crystal molecules in the first opening overflow, so that the generation of vacuum bubbles is reduced, and the display abnormality risk of the display panel is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a first structure of a display panel according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a second structure of a display panel according to an embodiment of the present invention;
fig. 3 is a schematic structural view of a third structure of a display panel according to an embodiment of the present invention;
fig. 4 is a schematic structural view of a fourth structure of a display panel according to an embodiment of the present invention;
Fig. 5 is a schematic structural view of a fifth structure of a display panel according to an embodiment of the present invention;
FIG. 6 is a flowchart illustrating steps of a method for fabricating a display panel according to an embodiment of the present invention;
Fig. 7 is a schematic flow chart of a first method for manufacturing a display panel according to an embodiment of the invention;
fig. 8 is a schematic diagram of a second flow chart of a method for manufacturing a display panel according to an embodiment of the invention;
fig. 9 is a schematic structural diagram of a display device according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention. Furthermore, it should be understood that the detailed description is presented herein for purposes of illustration and description only, and is not intended to limit the invention. In the present invention, unless otherwise indicated, terms of orientation such as "upper" and "lower" are used to generally refer to the upper and lower positions of the device in actual use or operation, and specifically the orientation of the drawing figures; while "inner" and "outer" are for the outline of the device.
In recent years, a liquid crystal display panel still occupies a place in the consumer market, in the liquid crystal display panel, a liquid crystal layer is filled between an upper substrate and a lower substrate, and a spacer unit is arranged, so that when the display panel is touched and pressed, the distance between the two substrates of the display panel is easy to be reduced, when the display panel is bent to the pressure of the spacer unit, the pressure of the spacer unit is equal to the atmospheric pressure, and especially in a low-temperature environment, the liquid crystal cannot be filled with the liquid crystal layer easily, vacuum bubbles are generated, and abnormal display of the display panel is caused.
Referring to fig. 1 to 5, a display panel 100 according to an embodiment of the invention includes:
A first substrate 200 and a second substrate 300 disposed opposite to each other;
a liquid crystal layer 400 between the first substrate 200 and the second substrate 300;
A plurality of spacer units 500 positioned between the first substrate 200 and the second substrate 300;
wherein at least one of the spacer units 500 includes at least one first opening 610 disposed on a surface.
According to the invention, the first opening is formed in the surface of the spacer unit, so that liquid crystal molecules can be contained, and when the display panel is extruded, the liquid crystal molecules in the first opening overflow, so that the generation of vacuum bubbles is reduced, and the display abnormality risk of the display panel is reduced.
The technical scheme of the present invention will now be described with reference to specific embodiments.
In this embodiment, referring to fig. 1, the display panel 100 includes a first substrate 200 and a second substrate 300 disposed opposite to each other, a liquid crystal layer 400 disposed between the first substrate 200 and the second substrate 300, and a plurality of spacer units 500 disposed between the first substrate 200 and the second substrate 300, wherein at least one of the spacer units 500 includes at least one first opening 610 disposed on a surface thereof.
The first opening 610 is formed on the surface of the spacer unit 500, and when the display panel 100 is not subjected to an external abnormal pressure, the first opening 610 may store the liquid crystal molecules 410 of the liquid crystal layer 400, and when the display panel 100 is subjected to the external abnormal pressure, the spacer unit 500 is pressed, thereby releasing the liquid crystal molecules 410 in the first opening 610, so as to reduce the generation of vacuum bubbles, thereby reducing the risk of abnormal display of the display panel 100.
In some embodiments, referring to fig. 1, the spacer unit 500 may be formed on the first substrate 200 or the second substrate 300. The first substrate 200 may be an array substrate, and the second substrate 300 may be a color film substrate, which is only exemplified herein and is not particularly limited.
In some embodiments, referring to fig. 1, the spacer unit 500 includes a support portion 510, and the first via may be directly disposed on a surface of the support portion 510, and the first via may be formed by plasma bombardment.
In some embodiments, referring to fig. 3 and 4, the spacer unit 500 includes a support portion 510 and a flexible portion 520 surrounding the support portion 510; wherein the hardness of the flexible portion 520 is smaller than that of the supporting portion 510, and each of the first openings 610 is provided on the surface of the flexible portion 520.
Surrounding the flexible portion 520 outside the supporting portion 510, wherein the flexible portion 520 has a hardness smaller than that of the supporting portion 510, and on the one hand, the first opening 610 may be better formed; on the other hand, the display panel 100 further includes a liquid crystal alignment layer between the first substrate 200 and the second substrate 300, when the display panel 100 is pressed, the spacer unit 500 is easy to slide in a staggered manner, scratch the liquid crystal alignment layer, so that the alignment of a local area is damaged, the alignment of the liquid crystal molecules 410 is disordered in a small range, the photoelectric performance is changed, for example, when the display panel is in a 0 gray level or a shutdown state, the edge area of the spacer unit 500 is observed to have abnormal color light spots generated under an optical microscope, the hardness of the flexible portion 520 is smaller than that of the supporting portion 510, and when the spacer unit 500 slides, the flexible portion 520 can better protect the liquid crystal alignment layer, and scratch of the supporting portion 510 on the liquid crystal alignment layer is reduced, thereby reducing the risk of abnormal display of the display panel 100.
In some embodiments, the material of the flexible portion 520 comprises a gel. The supporting portion 510 may be made of a material such as photoresist.
In some embodiments, referring to fig. 2,3 and 4, at least two of the first openings 610 are disposed to communicate with each other.
The liquid crystal layer 400 includes a plurality of liquid crystal molecules 410, and the first openings 610 are penetrated to each other, so that more liquid crystal molecules 410 can be accommodated, and more liquid crystal molecules 410 are released when the display panel 100 is pressed; meanwhile, the first through hole 610 may be in communication with the space where the liquid crystal layer 400 is located, and when the display panel 100 is pressed, the liquid crystal molecules 410 may be released more smoothly, so as to reduce the generation of vacuum bubbles, thereby reducing the risk of abnormal display of the display panel 100.
In some embodiments, referring to fig. 4, the area of the front projection of the flexible portion 520 on the first substrate 200 is larger than the area of the front projection of the spacer unit 500 on the first substrate 200.
The flexible portion 520 and the supporting portion 510 may be formed on the first substrate 200 or the second substrate 300, so that the flexible portion 520 may extend toward the first substrate 200 or the second substrate 300, thereby better wrapping the supporting portion 510, and the hardness of the flexible portion 520 is smaller than that of the supporting portion 510, and when the spacer unit 500 slides, the flexible portion 520 may better protect the liquid crystal alignment layer, reduce the scratch of the supporting portion 510 on the liquid crystal alignment layer, thereby reducing the risk of abnormal display of the display panel 100.
In some embodiments, the material of the flexible portion 520 comprises a gel. The gel is convenient to form, and meanwhile, the hardness is small, the first via hole is convenient to form, and meanwhile, the alignment layer is better protected. For a specific forming method, please refer to the manufacturing method of the display panel 100.
In some embodiments, referring to fig. 2 to 4, the liquid crystal layer 400 includes a plurality of liquid crystal molecules 410, each of the liquid crystal molecules 410 is in a shape of a bar, and the liquid crystal molecules 410 include a major axis and a minor axis; wherein, the opening diameter of the first opening 610 is larger than the maximum circumscribing circle diameter corresponding to the short axis of the liquid crystal molecule 410.
The liquid crystal molecules 410 are generally in a bar shape, the largest circumcircle diameter of the short axis included in the liquid crystal molecules 410 is smaller than the opening diameter of the first opening 610, and when the display panel 100 is not pressed by an external abnormal condition, the first opening 610 can better accommodate the liquid crystal molecules 410, and when the display panel 100 is pressed by the external abnormal condition, the spacer unit 500 is pressed, so that the liquid crystal molecules 410 are released from the first opening 610 more smoothly, thereby reducing the occurrence of vacuum bubbles, and reducing the risk of abnormal display of the display panel 100.
In some embodiments, referring to fig. 5, the average opening diameter of the first opening 610 of each spacer unit 500 gradually increases in a direction from the edge of the display panel 100 to the center of the display panel 100.
The larger the opening diameter of the first opening 610 is, the stronger the corresponding ability to store and release the liquid crystal molecules 410 is, the display panel 100 is affected by gravity in a direction close to the center of the display panel 100, and the supporting force is insufficient, so that vacuum bubbles are more easily generated when the display panel is abnormally pressed, and the average opening diameter of the first opening 610 of each spacer unit 500 is gradually increased in a direction from the edge of the display panel 100 to the center of the display panel 100, so that the area corresponding to the ability to store and release the liquid crystal molecules 410 is enhanced, which is more advantageous to reduce the generation of vacuum bubbles, thereby reducing the risk of abnormal display of the display panel 100.
In some embodiments, the first openings 610 of each of the spacer units 500 are arranged to have a gradually increasing density in a direction from the edge of the display panel 100 to the center of the display panel 100.
The greater the arrangement density of the first openings 610 of the spacer units 500 is, the stronger the arrangement density of the first openings 610 of the spacer units 500 is, and the stronger the compression capability of the spacer units 500 is, and in the direction from the edge of the display panel 100 to the center of the display panel 100, the arrangement density of the first openings 610 of each spacer unit 500 is gradually increased to enhance the rebound ability against external compression, so as to enhance the capability of the region to store and release the liquid crystal molecules 410 correspondingly, which is more beneficial to reducing the generation of vacuum bubbles, thereby reducing the risk of abnormal display of the display panel 100.
In some embodiments, the opening diameter and the arrangement density of the first openings 610 may be changed according to the size of the display panel 100 and the specific latitude coordinate area, for example, in the vicinity of the north pole area, the opening diameter and the arrangement density of the first openings 610 may be increased appropriately to overcome the situation that vacuum bubbles are easily generated at low temperature; at the same time, the opening diameter and the arrangement density of the first openings 610 should not be too large, so that the risk of collapsing due to insufficient supporting force of the spacer unit 500 is avoided.
According to the invention, the first opening is formed in the surface of the spacer unit, so that liquid crystal molecules can be contained, and when the display panel is extruded, the liquid crystal molecules in the first opening overflow, so that the generation of vacuum bubbles is reduced, and the display abnormality risk of the display panel is reduced.
Referring to fig. 6, an embodiment of the present invention further provides a method for manufacturing a display panel 100, including:
s100, providing a first substrate 200 and a second substrate 300, and forming a plurality of spacer units 500 on the first substrate 200 or forming a plurality of spacer units 500 on the second substrate 300;
S200, forming at least one first opening 610 on the surface of at least one spacer unit 500;
S300, arranging the first substrate 200 and the second substrate 300 in an aligned manner, and forming a liquid crystal layer 400 between the first substrate 200 and the second substrate 300.
According to the invention, the first opening is formed in the surface of the spacer unit, so that liquid crystal molecules can be contained, and when the display panel is extruded, the liquid crystal molecules in the first opening overflow, so that the generation of vacuum bubbles is reduced, and the display abnormality risk of the display panel is reduced.
In this embodiment, the method for manufacturing the display panel 100 includes:
s100, providing a first substrate 200 and a second substrate 300, forming a plurality of spacer units 500 on the first substrate 200, or forming a plurality of spacer units 500 on the second substrate 300, please refer to fig. 7.
In some embodiments, the spacer unit 500 may be formed on the first substrate 200 or on the second substrate 300. The first substrate 200 may be an array substrate, and the second substrate 300 may be a color film substrate, which is only exemplified herein and is not particularly limited.
In some embodiments, the step S100 includes:
S110, providing a first substrate 200 and a second substrate 300, forming a plurality of supporting portions 510 and flexible portions 520 surrounding the supporting portions 510 on the first substrate 200, or forming a plurality of supporting portions 510 and flexible portions 520 surrounding the supporting portions 510 on the second substrate 300, so as to form each of the spacer units 500, please refer to fig. 8.
In some embodiments, step S110 includes:
S111, providing a first substrate 200 and a second substrate 300, forming a plurality of supporting portions 510 on the first substrate 200 or forming a plurality of supporting portions 510 on the second substrate 300, please refer to fig. 8.
S112, forming a gel pre-polymer mixture 521 including a plurality of gel monomers and a solvent on the support portion 510 to form a flexible portion 520, please refer to fig. 8.
In some embodiments, the plurality of gel monomers may include the following monomers:
in some embodiments, the temperature of the freezing point of the solvent is greater than the temperature at which polymerization of a plurality of the gel monomers occurs.
In some embodiments, the solvent may be water.
S200, at least one first opening 610 is formed on a surface of at least one spacer unit 500, see FIG. 7.
In some embodiments, the step S200 includes:
S210, at least one first opening 610 is formed on the surface of the flexible portion 520 of at least one spacer unit 500, see FIG. 8.
In some embodiments, the stiffness of the flexible portion 520 is less than the stiffness of the support portion 510.
Surrounding the flexible portion 520 outside the supporting portion 510, wherein the flexible portion 520 has a hardness smaller than that of the supporting portion 510, and on the one hand, the first opening 610 may be better formed; on the other hand, the display panel 100 further includes a liquid crystal alignment layer between the first substrate 200 and the second substrate 300, when the display panel 100 is pressed, the spacer unit 500 is easy to slide in a staggered manner, scratch the liquid crystal alignment layer, so that the alignment of a local area is damaged, the alignment of the liquid crystal molecules 410 is disordered in a small range, the photoelectric performance is changed, for example, when the display panel is in a 0 gray level or a shutdown state, the edge area of the spacer unit 500 is observed to have abnormal color light spots generated under an optical microscope, the hardness of the flexible portion 520 is smaller than that of the supporting portion 510, and when the spacer unit 500 slides, the flexible portion 520 can better protect the liquid crystal alignment layer, and scratch of the supporting portion 510 on the liquid crystal alignment layer is reduced, thereby reducing the risk of abnormal display of the display panel 100.
In some embodiments, step S210 includes:
S211, cooling the gel pre-polymerization liquid mixture 521 to solidify the solvent into a first solid.
In some embodiments, step S211 comprises:
S2111, cooling the gel pre-polymer liquid mixture 521 to a first temperature to solidify the solvent into a first solid.
In some embodiments, the first temperature is from-30 ℃ to-10 ℃. At this temperature range, the solvent may be water, forming ice crystals, and the gel monomer is displaced out of the ice crystal region due to the presence of ice crystals.
S212, heating the gel pre-polymerization mixture 521 to enable each gel monomer to form gel, and melting and removing the first solid to correspondingly form a first opening 610.
In some embodiments, step S212 includes:
S2121, heating the gel pre-polymerization mixture 521 to a second temperature to form a gel from each of the gel monomers.
In some embodiments, the second temperature may be-5 ℃ to 0 ℃ to provide a polymerization reaction temperature of the gel monomer.
S2122, heating the gel pre-polymerization mixture 521 to a third temperature to melt and remove the first solid, thereby forming a first opening 610.
In some embodiments, the third temperature may be room temperature, e.g., 25 ℃, to melt the first solid for removal, and the ice crystals are located to form first openings 610.
In some embodiments, at least two of the first openings 610 are disposed through each other.
In some embodiments, the area of the front projection of the flexible portion 520 on the first substrate 200 is larger than the area of the front projection of the spacer unit 500 on the first substrate 200.
S300, the first substrate 200 and the second substrate 300 are aligned, and a liquid crystal layer 400 is formed between the first substrate 200 and the second substrate 300, please refer to FIG. 1.
In some embodiments, referring to fig. 2, the liquid crystal layer 400 includes a plurality of liquid crystal molecules 410, each of the liquid crystal molecules 410 has a long bar shape, and the liquid crystal molecules 410 include a long axis and a short axis; wherein, the opening diameter of the first opening 610 is larger than the maximum circumscribing circle diameter corresponding to the short axis of the liquid crystal molecule 410.
In some embodiments, referring to fig. 5, the average opening diameter of the first opening 610 of each spacer unit 500 gradually increases in a direction from the edge of the display panel 100 to the center of the display panel 100.
In some embodiments, the first openings 610 of each of the spacer units 500 are arranged to have a gradually increasing density in a direction from the edge of the display panel 100 to the center of the display panel 100.
In some embodiments, the opening diameter and the arrangement density of the first openings 610 may be changed according to the size of the display panel 100 and the specific latitude coordinate area, for example, in the vicinity of the north pole area, the opening diameter and the arrangement density of the first openings 610 may be increased appropriately to overcome the situation that vacuum bubbles are easily generated at low temperature; at the same time, the opening diameter and the arrangement density of the first openings 610 should not be too large, so that the risk of collapsing due to insufficient supporting force of the spacer unit 500 is avoided.
According to the invention, the first opening is formed in the surface of the spacer unit, so that liquid crystal molecules can be contained, and when the display panel is extruded, the liquid crystal molecules in the first opening overflow, so that the generation of vacuum bubbles is reduced, and the display abnormality risk of the display panel is reduced.
Referring to fig. 9, the embodiment of the invention further provides a display device 10, including any one of the display panels 100 and the device body 20, wherein the device body 20 is integrated with the display panel 100.
The specific structure of the display panel 100 is shown in any of the embodiments of the display panel 100 and the drawings, and will not be described herein.
In this embodiment, the device main body 20 may include a middle frame, a frame glue, etc., and the display device 10 may be a display terminal such as a mobile phone, a tablet, a television, etc., which is not limited herein.
The embodiment of the invention discloses a display panel and a manufacturing method thereof; the display panel comprises a first substrate, a second substrate, a liquid crystal layer and a plurality of spacer units, wherein the first substrate and the second substrate are oppositely arranged, the liquid crystal layer is arranged between the first substrate and the second substrate, the spacer units are arranged between the first substrate and the second substrate, and at least one spacer unit comprises at least one first opening arranged on the surface; according to the invention, the first opening is formed in the surface of the spacer unit, so that liquid crystal molecules can be contained, and when the display panel is extruded, the liquid crystal molecules in the first opening overflow, so that the generation of vacuum bubbles is reduced, and the display abnormality risk of the display panel is reduced.
The display panel and the manufacturing method thereof provided by the embodiment of the invention are described in detail, and specific examples are applied to illustrate the principle and the implementation of the invention, and the description of the above embodiments is only used for helping to understand the method and the core idea of the invention; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in light of the ideas of the present invention, the present description should not be construed as limiting the present invention.
Claims (5)
1. A display panel, comprising:
A first substrate and a second substrate disposed opposite to each other;
the liquid crystal layer is positioned between the first substrate and the second substrate, the liquid crystal layer comprises a plurality of liquid crystal molecules, each liquid crystal molecule is in a long bar shape, and the liquid crystal molecules comprise a long axis and a short axis;
a plurality of spacer units located between the first substrate and the second substrate;
The spacer units comprise supporting parts and flexible parts surrounding the supporting parts, the material of the flexible parts comprises gel, each first opening is formed in the surface of the flexible part, liquid crystal molecules in the liquid crystal layer can be stored or released by the first opening, the opening diameter of each first opening is larger than the maximum circumcircle diameter corresponding to the short axis of the liquid crystal molecules, and the average opening diameter of each first opening of each spacer unit is gradually increased in the direction from the edge of the display panel to the center of the display panel.
2. The display panel according to claim 1, wherein the hardness of the flexible portion is smaller than the hardness of the supporting portion.
3. The display panel of claim 2, wherein at least two of the first openings are disposed through each other.
4. The display panel of claim 2, wherein an area of the flexible portion projected forward on the first substrate is larger than an area of the spacer unit projected forward on the first substrate.
5. A method for manufacturing a display panel, comprising:
providing a first substrate and a second substrate, forming a plurality of supporting parts on the first substrate or forming a plurality of supporting parts on the second substrate; forming a gel pre-polymer liquid mixture comprising a plurality of gel monomers and a solvent on the support portion to form a flexible portion having a hardness less than the hardness of the support portion;
Cooling the gel pre-polymerization liquid mixture to solidify the solvent into a first solid; heating the gel pre-polymerization mixture to form gel from each gel monomer, and melting and removing the first solid to form a first opening correspondingly;
And aligning the first substrate with the second substrate, forming a liquid crystal layer between the first substrate and the second substrate, wherein the first opening can store or release liquid crystal molecules in the liquid crystal layer.
Priority Applications (1)
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| CN115469486A (en) | 2022-12-13 |
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