CN110068960A - Aggregation stablizes the manufacturing method of homeotropic liquid crystal display panel - Google Patents
Aggregation stablizes the manufacturing method of homeotropic liquid crystal display panel Download PDFInfo
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- CN110068960A CN110068960A CN201910271098.7A CN201910271098A CN110068960A CN 110068960 A CN110068960 A CN 110068960A CN 201910271098 A CN201910271098 A CN 201910271098A CN 110068960 A CN110068960 A CN 110068960A
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- Prior art keywords
- liquid crystal
- substrate
- display panel
- crystal display
- manufacturing
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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
- G02F1/1303—Apparatus specially adapted to the manufacture of LCDs
-
- 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
- G02F1/133703—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by introducing organic surfactant additives into the liquid crystal material
-
- 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
- G02F1/13378—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by treatment of the surface, e.g. embossing, rubbing or light irradiation
- G02F1/133788—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by treatment of the surface, e.g. embossing, rubbing or light irradiation by light irradiation, e.g. linearly polarised light photo-polymerisation
Abstract
The present invention discloses a kind of manufacturing method of stable homeotropic liquid crystal display panel of aggregation, the manufacturing method includes that a liquid crystal purchases step, a substrate purchases step, one first irradiating step, one second irradiating step and a third irradiating step, in the third irradiating step, it is irradiated with a third ultraviolet light from second side for the liquid crystal display panel, the reaction monomers for making the liquid crystal layer be located at a fringe region are assembled.
Description
Technical field
The invention relates to a kind of manufacturing methods of liquid crystal display panel, stablize in particular to a kind of aggregation and hang down
The manufacturing method of straight alignment LCD panel.
Background technique
Thin Film Transistor-LCD (Thin Film Transistor-Liquid Crystal Display, TFT-
LCD) due to the advantages such as colorfulness is high, small in size, low in energy consumption, position of mainstream is accounted in current flat display field.It is just main at present
For stream TFT-LCD display panel in the market, three types can be divided into, be respectively twisted-nematic (Twisted Nematic,
TN) or super twisted nematic (Super Twisted Nematic, STN) type, plane conversion (In-Plane Switching, IPS)
Type and vertical orientation (Vertical Alignment, VA) type.The wherein relatively other kinds of liquid crystal of VA type liquid crystal display
Show that device has high contrast, shown in large scale, as TV etc. has very wide application.Wherein, aggregation is steady
Determining vertical orientation (PolymerStabilized-Vertical Alignment, PSVA) technology can be such that liquid crystal display panel has
Have the advantages that faster response time, penetrance are high, its main feature is that aggregation protrusion is formed in orientation film surface, to make liquid crystal
Molecule has pre-tilt angle.
The manufacturing process of traditional PSVA panel generally comprises as follows: upper substrate and lower substrate are provided, upper substrate and under
PI (polyimides) alignment film is set on substrate；Liquid-crystal composition, the liquid-crystal composition are instilled in upper substrate or lower substrate side
Comprising liquid crystal material and the reaction monomers being mixed in liquid crystal material (Reactive monomer, RM), then by upper substrate and
Lower substrate forms the liquid crystal layer between upper substrate and lower substrate, obtains liquid crystal display panel to group；Liquid crystal display panel is carried out purple for the first time
Outer light (UV) irradiation, and apply certain voltage to upper substrate and lower substrate, liquid crystal combination is made by way of irradiating ultraviolet light
Reaction monomers in object react, and aggregation protrusion are formed on upper substrate and lower substrate, so that it is pre- to form liquid crystal material
Inclination angle；Second of ultraviolet light is carried out to liquid crystal display panel, because hitting reaction monomers in first time ultraviolet lighting is to have no way
Fully reacting, remain in liquid crystal material there are also some, in order to remove fortune part reaction monomers, passes through second of ultraviolet lighting
Processing procedure is penetrated, makes reaction monomers fully reacting with weaker ultraviolet light.
Since setting color blocking is in upper substrate (array substrate), in order to avoid color blocking absorbs ultraviolet light, ultraviolet light descends base
The side of plate (color membrane substrates) is irradiated, however, the reaction monomers at the edge of the liquid crystal display panel are still reacted not exclusively, in shadow
During residual (Image Sticking), the reaction monomers occur secondary response and cause pre-dumping angular variation, described
The edge of liquid crystal display panel forms the phenomenon that whiting.
Therefore, it is necessary to a kind of aggregation for providing improvement stablizes the manufacturing method of homeotropic liquid crystal display panel, with
Solve the problems of above-mentioned prior art.
Summary of the invention
The purpose of the present invention is to provide the manufacturing methods that a kind of aggregation stablizes homeotropic liquid crystal display panel, utilize
Increase by a curing process, and from second side irradiation of liquid crystal display panel, enable the liquid crystal display panel edge reaction monomers
Reaction completely, and then solve the problems, such as pre-dumping angular variation.
To reach foregoing purpose of the invention, one embodiment of the invention provides a kind of stable vertical orientation liquid crystal of aggregation
Show that the manufacturing method of panel, the manufacturing method include that a liquid crystal purchases step, a substrate purchases step, one first irradiation step
Suddenly, one second irradiating step and a third irradiating step；It is purchased in step in the liquid crystal, provides photoinitiator, can be ultraviolet
The lower reaction monomers and liquid crystal material containing active group that aggreation occurs of light irradiation, and by the photoinitiator and instead
It answers monomer to be mixed into liquid crystal material, obtains a liquid-crystal composition；Purchased in step in the substrate, provide a first substrate and
One the second substrate, and the liquid-crystal composition is injected between the first substrate and the second substrate and forms a liquid
Crystal layer, then the first substrate and the second substrate are subjected to vacuum to a group fitting, obtain a liquid crystal display panel；Described first
In irradiating step, it is irradiated with one first ultraviolet light from one first side of the liquid crystal display panel, makes one in the liquid crystal layer
The reaction monomers of first part are assembled；In second irradiating step, with one second ultraviolet light from the liquid crystal display panel
First side be irradiated, assemble the reaction monomers of the second part in the liquid crystal layer；In the third
It in irradiating step, is irradiated with a third ultraviolet light from second side for the liquid crystal display panel, the liquid crystal layer is made to be located at one
The reaction monomers of fringe region are assembled.
In one embodiment of this invention, first side is the side of the second substrate, and described second side is described
The side of first substrate.
In one embodiment of this invention, the wavelength model of the wave-length coverage of second ultraviolet light and first ultraviolet light
Enclose difference.
In one embodiment of this invention, the wavelength model of the wave-length coverage of second ultraviolet light and the third ultraviolet light
It encloses identical.
In one embodiment of this invention, after the substrate purchases step, the manufacturing method also includes one first
Inversion step inverts the first substrate and the second substrate, so that the second substrate faces first ultraviolet light.
In one embodiment of this invention, after second irradiating step, the manufacturing method also includes one second
Inversion step inverts the first substrate and the second substrate, so that the first substrate faces the third ultraviolet light.
In one embodiment of this invention, the second substrate has a viewing area, a shading region and multiple holes, the screening
Light area is centered around outside the viewing area, and the hole is formed on the shading region, and the hole configuration is passed through with for ultraviolet light.
In one embodiment of this invention, the hole is along at least edge between the viewing area and the shading region
Equidistant arrangement.
In one embodiment of this invention, the hole is equidistant along the periphery between the viewing area and the shading region
Arrangement.
In one embodiment of this invention, the hole is in rectangle.
As described above, forming hole in the shading region of the second substrate, enable ultraviolet light by the hole, into
And improve the reaction effect of the reaction monomers at the edge of the liquid crystal display panel.In addition, by increasing by solidification (Curing) processing procedure,
And from second side irradiation of the liquid crystal display panel, that is to say, that after irradiating second ultraviolet light, carry out the liquid crystal display panel
Reversion, then provide the third ultraviolet light in second side of the liquid crystal display panel, so that the side of the liquid crystal display panel
The reaction monomers of edge can react completely, and then solve the problems, such as pre-dumping angular variation, improve image residue (Image
Sticking quality).
Detailed description of the invention
Fig. 1 is a preferred embodiment of the manufacturing method of the stable homeotropic liquid crystal display panel of aggregation according to the present invention
A flow chart.
Fig. 2 is a preferred embodiment of the manufacturing method of the stable homeotropic liquid crystal display panel of aggregation according to the present invention
The second substrate a schematic diagram.
Specific embodiment
The explanation of following embodiment is to can be used to the particular implementation of implementation to illustrate the present invention with reference to additional schema
Example.Furthermore the direction term that the present invention is previously mentioned, for example, above and below, top, bottom, front, rear, left and right, inside and outside, side, surrounding, in
Centre, it is horizontal, laterally, vertically, longitudinally, axial direction, radial direction, top layer or lowest level etc., be only the direction with reference to annexed drawings.Cause
This, the direction term used is to illustrate and understand the present invention, rather than to limit the present invention.
It please refers to shown in Fig. 1, one for the manufacturing method of the stable homeotropic liquid crystal display panel of aggregation of the present invention is excellent
Select a flow chart of embodiment.The manufacturing method include a liquid crystal purchases step S201, a substrate purchases step S202, one the
One inversion step S203, one first irradiating step S204, one second irradiating step S205, one second inversion step S206 and 1
Three irradiating step S207, the present invention by be detailed below the detail structure of the above-mentioned each component of each embodiment, assembled relation and
Its operation principles.
It is continuous referring to Fig.1 shown in, purchased in step S201 in the liquid crystal, provide photoinitiator, can be under ultraviolet light
Occur the reaction monomers and liquid crystal material containing active group of aggreation, also, by the photoinitiator and described anti-
It answers monomer to be mixed into the liquid crystal material, and then obtains a liquid-crystal composition.
It is continuous shown referring to Fig.1, it is purchased in step S202 in the substrate, provides a first substrate and a second substrate (not
It is painted), PI (polyimides) alignment film is set in the first substrate and the second substrate, and by the liquid-crystal composition
It is injected between the first substrate and the second substrate and forms a liquid crystal layer, then by the first substrate and described second
Substrate carries out vacuum to a group fitting, obtains a liquid crystal display panel.In the present embodiment, the first substrate is TFT (Thin Film
Transistor) array substrate, the second substrate are color membrane substrates.
It is continuous shown referring to Fig.1, it is in the first inversion step S203, the first substrate and the second substrate is anti-
Turn, so that the second substrate faces one first ultraviolet light.
It is continuous referring to Fig.1 shown in, in the first irradiating step S204, with first ultraviolet light from the liquid crystal display panel
One first side be irradiated, assemble the reaction monomers of the first part in the liquid crystal layer.In the present embodiment,
First side of the liquid crystal display panel is the side of the second substrate, in addition, first ultraviolet light is under the action of photoelectric heat,
So that liquid crystal molecule is toppled over, and assembles the reaction monomers of the first part in the liquid crystal layer, to be formed pre-
Inclination angle.
It is continuous referring to Fig.1 shown in, in the second irradiating step S205, with one second ultraviolet light from the liquid crystal display panel
First side is irradiated, and assembles the reaction monomers of the second part in the liquid crystal layer.In the present embodiment,
The wave-length coverage of second ultraviolet light is different from the wave-length coverage of first ultraviolet light, work of second ultraviolet light in light
React the second part (remaining reaction monomers) in the liquid crystal layer under, to promote the static comparison of the liquid crystal display panel
Effect.
It is continuous shown referring to Fig.1, it, will be on the first substrate and the second substrate in the second inversion step S206
Lower reversion, so that the first substrate faces a third ultraviolet light.
It is continuous referring to Fig.1 shown in, in the third irradiating step S207, with the third ultraviolet light from the liquid crystal display panel
A second side be irradiated, the reaction monomers for making the liquid crystal layer be located at a fringe region are assembled.In the present embodiment,
The fringe region be the liquid crystal display panel a viewing area peripheral edge margin, the wave-length coverage of second ultraviolet light with it is described
The wave-length coverage of third ultraviolet light is identical, and described second side is the side of the first substrate.
It is the manufacturing method that aggregation stablizes homeotropic liquid crystal display panel according to the present invention shown in referring to figure 2.
One schematic diagram of the second substrate of one preferred embodiment, wherein the second substrate 2 have a viewing area 21, a shading region 22 and
Multiple holes 23, the shading region 22 are centered around outside the viewing area 21, and the hole 23 is formed on the shading region 22, the hole
23 configurations are passed through with for ultraviolet light.In the present embodiment, the hole 23 along the viewing area 21 and the shading region 22 it
Between an at least edge equidistant arrangement or the hole 23 along the periphery between the viewing area 21 and the shading region 22
Equidistant arrangement, and the hole 23 is in rectangle.
As described above, forming hole 23 in the shading region 22 of the second substrate 2, ultraviolet light is passed through described
Hole 23, and then improve the reaction effect of the reaction monomers at the edge of the liquid crystal display panel.In addition, by increasing by a solidification
(Curing) processing procedure, and from second side irradiation of the liquid crystal display panel, that is to say, that after irradiating second ultraviolet light, into
The reversion of the row liquid crystal display panel, then provides the third ultraviolet light in second side of the liquid crystal display panel, so that institute
The reaction monomers for stating the edge of liquid crystal display panel can react completely, and then solve the problems, such as pre-dumping angular variation, improve image residue
The quality of (Image Sticking).
The present invention is described by above-mentioned related embodiment, however above-described embodiment is only to implement example of the invention.
It must be noted that, it has been disclosed that embodiment be not limiting as the scope of the present invention.On the contrary, being contained in the spirit of claims
And range modification and impartial setting be included in the scope of the present invention.
Claims (10)
1. the manufacturing method that a kind of aggregation stablizes homeotropic liquid crystal display panel, it is characterised in that: the manufacturing method packet
Containing step:
One liquid crystal purchases step, provide photoinitiator, can occur under ultraviolet light aggreation containing active group
Reaction monomers and liquid crystal material, and the photoinitiator and reaction monomers are mixed into liquid crystal material, obtain a liquid crystal group
Close object；
One substrate purchases step, provides a first substrate and a second substrate, and the liquid-crystal composition is injected into described
A liquid crystal layer is formed between first substrate and the second substrate, then the first substrate and the second substrate are carried out very
Sky obtains a liquid crystal display panel to a group fitting；
One first irradiating step is irradiated from one first side of the liquid crystal display panel with one first ultraviolet light, makes the liquid crystal
The reaction monomers of a first part in layer are assembled；
One second irradiating step is irradiated from first side of the liquid crystal display panel with one second ultraviolet light, makes the liquid
The reaction monomers of a second part in crystal layer are assembled；And
One third irradiating step is irradiated from second side for the liquid crystal display panel with a third ultraviolet light, makes the liquid crystal
The reaction monomers that layer is located at a fringe region are assembled.
2. the manufacturing method that aggregation as described in claim 1 stablizes homeotropic liquid crystal display panel, it is characterised in that: institute
The side that the first side is the second substrate is stated, described second side is the side of the first substrate.
3. the manufacturing method that aggregation as described in claim 1 stablizes homeotropic liquid crystal display panel, it is characterised in that: institute
The wave-length coverage for stating the second ultraviolet light is different from the wave-length coverage of first ultraviolet light.
4. the manufacturing method that aggregation as described in claim 1 stablizes homeotropic liquid crystal display panel, it is characterised in that: institute
The wave-length coverage for stating the second ultraviolet light is identical as the wave-length coverage of the third ultraviolet light.
5. the manufacturing method that aggregation as described in claim 1 stablizes homeotropic liquid crystal display panel, it is characterised in that:
After the substrate purchases step, the manufacturing method also includes one first inversion step, by the first substrate and described
Diyl board reversal, so that the second substrate faces first ultraviolet light.
6. the manufacturing method that aggregation as described in claim 1 stablizes homeotropic liquid crystal display panel, it is characterised in that:
After second irradiating step, the manufacturing method also includes one second inversion step, by the first substrate and described
Diyl board reversal, so that the first substrate faces the third ultraviolet light.
7. the manufacturing method that aggregation as described in claim 1 stablizes homeotropic liquid crystal display panel, it is characterised in that: institute
The second substrate is stated with a viewing area, a shading region and multiple holes, the shading region is centered around outside the viewing area, the hole shape
At on the shading region, the hole configuration is passed through with for ultraviolet light.
8. the manufacturing method that aggregation as claimed in claim 8 stablizes homeotropic liquid crystal display panel, it is characterised in that: institute
Hole is stated along at least edge equidistant arrangement between the viewing area and the shading region.
9. the manufacturing method that aggregation as claimed in claim 8 stablizes homeotropic liquid crystal display panel, it is characterised in that: institute
Hole is stated along the periphery equidistant arrangement between the viewing area and the shading region.
10. the manufacturing method that aggregation as claimed in claim 8 stablizes homeotropic liquid crystal display panel, it is characterised in that:
The hole is in rectangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910271098.7A CN110068960A (en) | 2019-04-04 | 2019-04-04 | Aggregation stablizes the manufacturing method of homeotropic liquid crystal display panel |
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| CN201910271098.7A CN110068960A (en) | 2019-04-04 | 2019-04-04 | Aggregation stablizes the manufacturing method of homeotropic liquid crystal display panel |
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| CN110068960A true CN110068960A (en) | 2019-07-30 |
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Cited By (2)
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| CN111025738A (en) * | 2019-12-23 | 2020-04-17 | Tcl华星光电技术有限公司 | Liquid crystal display panel |
| CN112882291A (en) * | 2021-01-18 | 2021-06-01 | 深圳市华星光电半导体显示技术有限公司 | Method for photoalignment of liquid crystal material |
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