CN111045259B - Display panel and preparation method thereof - Google Patents
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- CN111045259B CN111045259B CN201911375067.2A CN201911375067A CN111045259B CN 111045259 B CN111045259 B CN 111045259B CN 201911375067 A CN201911375067 A CN 201911375067A CN 111045259 B CN111045259 B CN 111045259B
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- 238000002360 preparation method Methods 0.000 title abstract description 8
- 239000007788 liquid Substances 0.000 claims abstract description 68
- 239000000758 substrate Substances 0.000 claims abstract description 65
- 125000006850 spacer group Chemical group 0.000 claims abstract description 14
- 238000000576 coating method Methods 0.000 claims abstract description 12
- 238000001035 drying Methods 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 11
- 239000011248 coating agent Substances 0.000 claims abstract description 9
- 230000000694 effects Effects 0.000 claims abstract description 8
- 238000001179 sorption measurement Methods 0.000 claims abstract description 6
- 239000003292 glue Substances 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 12
- 239000011347 resin Substances 0.000 claims description 5
- 229920005989 resin Polymers 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 230000009471 action Effects 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 4
- 230000007480 spreading Effects 0.000 abstract description 2
- 238000003892 spreading Methods 0.000 abstract description 2
- 230000000630 rising effect Effects 0.000 abstract 1
- 239000010408 film Substances 0.000 description 45
- 238000010586 diagram Methods 0.000 description 6
- 239000004973 liquid crystal related substance Substances 0.000 description 6
- 239000000565 sealant Substances 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 229920002120 photoresistant polymer Polymers 0.000 description 2
- 239000004642 Polyimide Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007641 inkjet printing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
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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
- G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
-
- 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
-
- 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
- G02F1/13398—Spacer materials; Spacer properties
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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)
- Spectroscopy & Molecular Physics (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Liquid Crystal (AREA)
Abstract
The invention provides a display panel and a preparation method thereof, wherein the preparation method comprises the following steps: the display device comprises a first substrate, a first retaining wall, a first alignment film, a second substrate, a second retaining wall, a second alignment film and frame glue. The method comprises the steps of preparing an abnormal-shaped channel array outside a display area by utilizing a photosensitive spacer or a color resistor, spreading the abnormal-shaped channel array into a first channel and a second channel in the process of coating alignment liquid, and automatically rising the alignment liquid under the action of capillary adsorption after the alignment liquid contacts the abnormal-shaped channel array to form an edge alignment liquid level slightly higher than a central liquid level so as to compensate that the edge of the alignment liquid is thinner due to the coffee ring effect in the drying process of the alignment liquid, and further, the prepared alignment film has consistent film thickness in the display area.
Description
Technical Field
The invention relates to the technical field of display, in particular to a display panel and a preparation method thereof.
Background
In a thin film transistor liquid crystal display (TFT-LCD), an alignment film enables liquid crystals to be aligned in a certain direction, and alignment properties are closely related to response speed of the liquid crystals, contrast of a panel, and the like. The ink-jet printing technology for preparing the alignment film has the advantages of flexibility, rapidness, low cost, convenience and rapidness, but the coffee ring effect is usually accompanied in the film forming process. The "coffee ring" effect is due to the evaporation rate at the edge of the droplet being greater than the evaporation rate, causing an outward capillary flow inside the droplet, carrying the suspended particles to the edge of the droplet where they are deposited in a ring. As shown in fig. 1, the edge of the alignment film has uneven thickness, wherein the edge of the thin region is in the display region, and peripheral Mura is formed due to the difference of liquid crystal alignment, which affects the display.
At present, for the edge film thickness uneven area, a mode of coating an alignment film for outward expansion or forming droplets of the edge coating liquid is adopted for many products, and the edge film thickness uneven area (2.5 mm-5 mm) is controlled to be outside a display area, so that the influence of the film thickness unevenness on the liquid crystal alignment and the product display is reduced. For narrow-frame products, in the above scheme, the alignment film is expanded and overlapped with the frame glue, so that the frame glue is easy to peel off, the alignment film is not expanded, and the risk of occurrence of peripheral moire fringes (Mura) is higher.
Therefore, it is necessary to provide a display panel and a method for manufacturing the same to solve the problem of non-uniform thickness of the edge of the alignment film.
Disclosure of Invention
The invention provides a display panel and a preparation method thereof, which are used for solving the problem of inconsistent edge thickness of an alignment film.
In order to solve the above problems, the present invention provides a display panel including: a first substrate provided with a display region; the first retaining wall is arranged on the first substrate and surrounds the display area, and a first channel perpendicular to the first substrate is arranged on one surface, facing the display area, of the first retaining wall; the first alignment film is arranged in the display area surrounded by the retaining wall, and the thickness of the center position of the alignment film is smaller than that of the edge position of the alignment film.
Further, still include: a second substrate disposed opposite to the first substrate; the second retaining wall is arranged on the second substrate and is opposite to the first retaining wall, and the second retaining wall is provided with a second channel corresponding to the first channel; and the second alignment film is arranged in the region surrounded by the second retaining wall, and the thickness of the central position of the second alignment film is smaller than that of the edge position of the second alignment film.
Further, the material of the first retaining wall comprises a photosensitive spacer or a color resistor.
Further, the material of the photosensitive spacer includes a resin.
Further, the cross section of the first channel is semicircular, and the radius of the semicircle is 5-8 um; and/or the cross section of the first channel is rectangular, the length of the rectangle is 10-18 um, and the width of the rectangle is 5-15 um; and/or the cross section of the first channel is triangular, and the height of the triangle is 10-18 um; and/or the cross section of the channel is trapezoidal, and the height of the trapezoid is 10-18 um.
Further, the width of first barricade is 20 ~ 30um, highly is 2 ~ 3 um.
Further, the edge of the first alignment film is provided with a slope, and the slope is arranged in the first channel.
Further, still include: and the frame glue is arranged between the first substrate and the second substrate and surrounds the retaining wall.
The invention provides a preparation method of a display panel, which comprises the following steps: providing a first substrate, wherein the first substrate is provided with a display area; coating a color resistor on a non-display area of the first substrate and surrounding the display area; exposing and developing the color resistor to form a retaining wall with a first channel, wherein the first channel faces the display area and is vertical to the first substrate; uniformly dripping alignment liquid into the display area, wherein the alignment liquid rises in the first channel, and the thickness of the center position of the alignment liquid is smaller than that of the edge position of the alignment liquid; and drying the alignment liquid to form a first alignment film corresponding to the display area.
Further, still include: providing a second substrate, wherein the second substrate is provided with a display area; coating a color resistor on a non-display area of the second substrate and surrounding the display area; exposing and developing the color resistor to form a second retaining wall with a second channel, wherein the second channel faces the display area and is vertical to the second substrate; uniformly dripping alignment liquid into the display area, wherein the alignment liquid rises in the second channel, and the thickness of the center position of the alignment liquid is smaller than that of the edge position of the alignment liquid; and drying the alignment liquid to form a second alignment film corresponding to the display area. .
The beneficial effects of the invention are: the method comprises the steps of preparing a special-shaped channel array outside a display area by utilizing photosensitive spacers or color resistors, spreading the special-shaped channel array into a first channel and a second channel in the coating process of alignment liquid, enabling the alignment liquid to automatically rise under the action of capillary adsorption after contacting the special-shaped channel array, forming an edge alignment liquid level which is slightly higher than a central liquid level, and compensating the edge thinness caused by the coffee ring effect in the drying process of the alignment liquid, so that the prepared alignment film is consistent in film thickness in the display area.
Drawings
The technical solution and other advantages of the present invention will become apparent from the following detailed description of specific embodiments of the present invention, which is to be read in connection with the accompanying drawings.
FIG. 1 is a schematic structural diagram of the thickness of an alignment film in the prior art.
Fig. 2 is a schematic structural diagram of a display panel provided in the present invention.
Fig. 3 is a plan view of the first substrate side provided by the present invention.
Fig. 4 is a schematic structural view of a slope and a channel of the alignment film provided by the present invention.
Fig. 5 is a schematic structural diagram of a rectangular channel provided in the present invention.
Fig. 6 is a schematic structural diagram of a triangular trench provided in the present invention.
FIG. 7 is a schematic view of the structure of the exposed and developed photoresist provided by the present invention.
FIG. 8 is a schematic diagram of the structure after exposure and development according to the present invention.
Fig. 9 is a schematic structural diagram of the thickness of the alignment liquid provided by the present invention.
A display panel 100;
a first substrate 101; a first retaining wall 103; a first alignment film 102;
a second substrate 106; a second barrier wall 105; a second alignment film 104;
a frame sealant 107; a display area 120; a first channel 108;
a ramp 1021; a color resistance 110; a mask plate 111.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "edge", and the like are used in the orientations and positional relationships indicated in the drawings, which are based on the orientations and positional relationships shown in the drawings, and are used merely for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the invention. 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, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The following disclosure provides many different embodiments or examples for implementing different features of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Moreover, the present invention may repeat reference numerals and/or reference letters in the various examples, which have been repeated for purposes of simplicity and clarity and do not in themselves dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or uses of other materials.
Referring to fig. 2 and fig. 3, the present invention provides a display panel 100, including: the liquid crystal display panel includes a first substrate 101, a first retaining wall 103, a first alignment film 102, a second substrate 106, a second retaining wall 105, a second alignment film 104, and a sealant 107.
The first substrate 101 is provided with a display area 120, and the first substrate 101 is an array substrate.
The first retaining wall is arranged on the first substrate 101 and surrounds the display area 120, and a first channel 108 perpendicular to the first substrate 101 is arranged on one surface of the retaining wall facing the display area 120. The first channels 108 are distributed in an array.
The material of the first retaining wall 103 includes photo spacers or color resistors 110. The material of the photosensitive spacer includes resin.
As shown in FIG. 4, the cross-sectional shape of the first channel 108 is a semicircle, and the radius of the semicircle is 5-8 um.
As shown in FIG. 5, the cross-sectional shape of the first channel 108 is rectangular, the length of the rectangle is 10-18 um, and the width is 5-15 um.
As shown in fig. 6, the cross-sectional shape of the first trench 108 is a triangle, and the height of the triangle is 10-18 um; and/or the cross section of the first channel 108 is trapezoidal, and the height of the trapezoid is 10-18 um.
The shape of the first channel 108 is not limited in this embodiment, and various shapes may be used in combination, which does not affect the invention of the present invention.
The first alignment film 102 is disposed in the display region 120 surrounded by the retaining wall, and the thickness of the center of the alignment film is smaller than the thickness of the edge of the alignment film.
The edge of the first alignment film 102 has a slope 1021, and the slope 1021 is disposed in the first channel 108.
The second substrate 106 is disposed opposite to the first substrate 101. The second substrate 106 is a color filter substrate. The structure of the retaining wall on the second substrate 106 side is the same as that on the first substrate 101 side, and the drawings refer to the first substrate 101 side.
The second retaining wall 105 is disposed on the second substrate 106 and opposite to the first retaining wall 103, and the second retaining wall 105 is provided with a second channel corresponding to the first channel 108.
The material of the second retaining wall 105 includes photo spacers or color resists 110. The material of the photosensitive spacer includes resin.
The width of second wall 105 is 20 ~ 30um, highly is 2 ~ 3 um.
The cross section of the second channel is semicircular, and the radius of the semicircle is 5-8 um; and/or the cross section of the second channel is rectangular, the length of the rectangle is 10-18 um, and the width of the rectangle is 5-15 um; and/or the cross section of the second channel is triangular, and the height of the triangle is 10-18 um; and/or the cross section of the second channel is trapezoidal, and the height of the trapezoid is 10-18 um.
The second alignment film 104 is disposed in a region surrounded by the second barrier 105, and a thickness of a center position of the second alignment film 104 is smaller than a thickness of an edge position of the second alignment film 104.
The edge of the second alignment film 104 has a slope 1021, and the slope 1021 is disposed in the second channel.
The sealant 107 is disposed between the first substrate 101 and the second substrate 106, and the sealant 107 surrounds the retaining wall.
The invention provides a display panel 100.A special-shaped channel array is prepared by utilizing a photosensitive spacer or a color resistor 110 outside a display area 120, the special-shaped channel array is spread into a first channel 108 and a second channel in the coating process of alignment liquid, the alignment liquid automatically rises under the capillary adsorption action after contacting the special-shaped channel array, the edge alignment liquid level is formed to be slightly higher than the central liquid level, the coffee ring effect in the drying process of the alignment liquid is compensated, and the thickness of the prepared alignment film is consistent.
For better understanding of the present invention, an embodiment of the present invention further provides a method for manufacturing a display panel, including the following steps S1) to S10).
S1) as shown in fig. 7, providing a first substrate 101, wherein the first substrate 101 has a display area 120.
S2) coating a color resist 110 on the non-display area of the first substrate 101 and surrounding the display area 120.
S3) exposing and developing the color resist 110 to form a first bank 103 (the structure shown in fig. 8) having a first channel 108, wherein the first channel 108 faces the display region 120 and is perpendicular to the first substrate 101.
Specifically, a mask plate 111 is arranged above the color resistor 110, the mask plate 111 has a channel pattern, and then the photoresist is irradiated by UV light. Finally, the structure shown in fig. 8 can be obtained by developing with a developing solution.
The material of the first retaining wall 103 includes photo spacers or color resists 110. The material of the photosensitive spacer includes resin.
The width of first barricade 103 is 20 ~ 30um, highly is 2 ~ 3 um.
The cross section of the first channel 108 is semicircular, and the radius of the semicircular shape is 5-8 um; and/or the cross section of the first channel 108 is rectangular, the length of the rectangle is 10-18 um, and the width of the rectangle is 5-15 um; and/or the cross section of the first channel 108 is triangular, and the height of the triangle is 10-18 um; and/or the cross section of the first channel 108 is trapezoidal, and the height of the trapezoid is 10-18 um.
S4), uniformly dropping alignment liquid into the display region 120, wherein the alignment liquid rises in the channel, and as shown in fig. 9, the thickness of the alignment liquid at the center position is smaller than that at the edge position.
The alignment liquid is made of polyimide.
The edge of the first alignment film 102 has a slope 1021, and the slope 1021 is disposed in the second channel.
S5), drying the alignment liquid to form the first alignment film 102 corresponding to the display region 120.
S6) providing a second substrate 106, the second substrate 106 having a display area 120. The method for preparing the alignment film on the second substrate 106 side is the same as that on the first substrate 101 side, and the drawings refer to the first substrate 101 side.
S7) coating a color resist 110 on the non-display area of the second substrate 106 and surrounding the display area 120.
S8) exposing and developing the color resists 110 to form a second barrier 105 having a second channel opposite to the first channel 108, the second channel facing the display area 120 and being perpendicular to the second substrate 106.
The width of second wall 105 is 20 ~ 30um, highly is 2 ~ 3 um.
The cross section of the second channel is semicircular, and the radius of the semicircle is 5-8 um; and/or the cross section of the second channel is rectangular, the length of the rectangle is 10-18 um, and the width of the rectangle is 5-15 um; and/or the cross section of the second channel is triangular, and the height of the triangle is 10-18 um; and/or the cross section of the second channel is trapezoidal, and the height of the trapezoid is 10-18 um.
S9) dropping alignment liquid uniformly onto the display region 120, wherein the alignment liquid rises in the channel, and the thickness of the alignment liquid at the center position is smaller than that at the edge position.
S10) drying the alignment liquid, forming the second alignment film 104 corresponding to the display region 120. The edge of the second alignment film 104 has a slope 1021, and the slope 1021 is disposed in the second channel.
The invention provides a preparation method of a display panel, which is characterized in that a special-shaped channel array is prepared by utilizing a photosensitive spacer or a color resistor 110 outside a display area 120, the special-shaped channel array is spread into a first channel 108 and a second channel in the coating process of alignment liquid, the alignment liquid automatically rises under the capillary adsorption action after contacting the special-shaped channel array, the edge alignment liquid level is formed to be slightly higher than the central liquid level, the edge is thinner due to the coffee ring effect in the drying process of the alignment liquid, and the prepared alignment film is consistent in the film thickness of the display area 120.
The present invention has been described in detail, and the principle and the implementation of the present invention are explained by applying specific examples, and the description of the above examples is only used to help understanding the technical scheme and the core idea of the present invention; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the present invention in its embodiments.
Claims (9)
1. A display panel, comprising:
a first substrate provided with a display area;
the first retaining wall is arranged on the first substrate and surrounds the display area, and a first channel perpendicular to the first substrate is arranged on one surface, facing the display area, of the first retaining wall;
the first alignment film is arranged in the display area surrounded by the retaining walls, and the thickness of the center position of the alignment film is smaller than that of the edge position of the alignment film;
when the alignment liquid is uniformly dripped into the display area, the alignment liquid rises in the first channel, and the thickness of the center position of the alignment liquid is smaller than that of the edge position of the alignment liquid; drying the alignment liquid to form a first alignment film corresponding to the display area;
a second substrate disposed opposite to the first substrate;
the second retaining wall is arranged on the second substrate and is opposite to the first retaining wall, and the second retaining wall is provided with a second channel corresponding to the first channel;
the second alignment film is arranged in the region surrounded by the second retaining wall, and the thickness of the center position of the second alignment film is smaller than that of the edge position of the second alignment film;
one end of the alignment liquid close to the first channel rises under the capillary adsorption effect of the first channel, so that the edge liquid level of the alignment liquid is higher than the central liquid level of the alignment liquid.
2. The display panel of claim 1,
the material of the first retaining wall comprises a photosensitive spacer or a color resistor.
3. The display panel of claim 2,
the material of the photosensitive spacer includes resin.
4. The display panel of claim 1,
the cross section of the first channel is semicircular, and the radius of the semicircle is 5-8 um; and/or (c) and/or,
the cross section of the first channel is rectangular, the length of the rectangle is 10-18 um, and the width of the rectangle is 5-15 um; and/or (c) and/or,
the cross section of the first channel is triangular, and the height of the triangle is 10-18 um; and/or (c) and/or,
the cross-sectional shape of channel is trapezoidal, trapezoidal height is 10 ~ 18 um.
5. The display panel of claim 1,
the width of first barricade is 20 ~ 30um, highly is 2 ~ 3 um.
6. The display panel of claim 1,
the edge of the first alignment film is provided with a slope, and the slope is arranged in the first channel.
7. The display panel of claim 1, further comprising:
and the frame glue is arranged between the first substrate and the second substrate and surrounds the retaining wall.
8. A method for manufacturing a display panel, comprising:
providing a first substrate, wherein the first substrate is provided with a display area;
coating a color resistor on a non-display area of the first substrate and surrounding the display area;
exposing and developing the color resistor to form a retaining wall with a first channel, wherein the first channel faces the display area and is vertical to the first substrate;
uniformly dripping alignment liquid into the display area, wherein the alignment liquid rises in the first channel, and the thickness of the center position of the alignment liquid is smaller than that of the edge position of the alignment liquid;
drying the alignment liquid to form a first alignment film corresponding to the display area;
one end of the alignment liquid close to the first channel rises under the capillary adsorption effect of the first channel, so that the edge liquid level of the alignment liquid is higher than the central liquid level of the alignment liquid.
9. The method for manufacturing a display panel according to claim 8, further comprising:
providing a second substrate, wherein the second substrate is provided with a display area;
coating a color resistance on a non-display area of the second substrate and surrounding the display area;
exposing and developing the color resistor to form a second retaining wall with a second channel, wherein the second channel faces the display area and is vertical to the second substrate;
uniformly dripping alignment liquid into the display area, wherein the alignment liquid rises in the second channel, and the thickness of the center position of the alignment liquid is smaller than that of the edge position of the alignment liquid;
and drying the alignment liquid to form a second alignment film corresponding to the display area.
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| CN201911375067.2A CN111045259B (en) | 2019-12-27 | 2019-12-27 | Display panel and preparation method thereof |
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| CN201911375067.2A CN111045259B (en) | 2019-12-27 | 2019-12-27 | Display panel and preparation method thereof |
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| CN112198722A (en) * | 2020-10-29 | 2021-01-08 | 南京中电熊猫液晶显示科技有限公司 | Liquid crystal display panel |
| CN113589595A (en) * | 2021-07-23 | 2021-11-02 | 北海惠科光电技术有限公司 | Display panel |
| CN114442378B (en) * | 2022-03-21 | 2022-12-30 | 绵阳惠科光电科技有限公司 | Display substrate and liquid crystal display panel |
| CN114721187A (en) * | 2022-04-28 | 2022-07-08 | 广州华星光电半导体显示技术有限公司 | Manufacturing method of alignment film and liquid crystal display panel |
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| US8125608B2 (en) * | 2006-04-11 | 2012-02-28 | Sharp Kabushiki Kaisha | Board for display device and display device |
| CN105093690B (en) * | 2015-08-05 | 2018-03-02 | 武汉华星光电技术有限公司 | Liquid crystal display substrate and the liquid crystal display device for including it |
| CN105204237B (en) * | 2015-10-09 | 2019-05-03 | 武汉华星光电技术有限公司 | A kind of liquid crystal display panel and display device |
| CN108983475B (en) * | 2018-08-29 | 2021-10-29 | Tcl华星光电技术有限公司 | Liquid crystal display and substrate structure thereof |
| CN109324446B (en) * | 2018-12-03 | 2020-12-18 | 惠科股份有限公司 | Display panel, manufacturing method and display device |
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