CN112987414A - Liquid crystal display panel, preparation method thereof and light ray adjusting system - Google Patents
Liquid crystal display panel, preparation method thereof and light ray adjusting system Download PDFInfo
- Publication number
- CN112987414A CN112987414A CN202110246399.1A CN202110246399A CN112987414A CN 112987414 A CN112987414 A CN 112987414A CN 202110246399 A CN202110246399 A CN 202110246399A CN 112987414 A CN112987414 A CN 112987414A
- Authority
- CN
- China
- Prior art keywords
- light
- liquid crystal
- substrate
- equal
- adjusting element
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 139
- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- 229920000642 polymer Polymers 0.000 claims abstract description 84
- 239000000758 substrate Substances 0.000 claims abstract description 82
- 210000002858 crystal cell Anatomy 0.000 claims abstract description 39
- 239000000178 monomer Substances 0.000 claims abstract description 29
- 239000000463 material Substances 0.000 claims abstract description 13
- 230000003287 optical effect Effects 0.000 claims description 27
- 238000000034 method Methods 0.000 claims description 14
- 238000004519 manufacturing process Methods 0.000 claims description 10
- 230000001678 irradiating effect Effects 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 6
- 230000003750 conditioning effect Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 6
- 238000006116 polymerization reaction Methods 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 210000004027 cell Anatomy 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 2
- BIAWAXVRXKIUQB-UHFFFAOYSA-N 2-(2-phenylethenyl)pyridine Chemical compound C=1C=CC=CC=1C=CC1=CC=CC=N1 BIAWAXVRXKIUQB-UHFFFAOYSA-N 0.000 description 1
- GOLORTLGFDVFDW-UHFFFAOYSA-N 3-(1h-benzimidazol-2-yl)-7-(diethylamino)chromen-2-one Chemical compound C1=CC=C2NC(C3=CC4=CC=C(C=C4OC3=O)N(CC)CC)=NC2=C1 GOLORTLGFDVFDW-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- 239000004990 Smectic liquid crystal Substances 0.000 description 1
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- JRXXLCKWQFKACW-UHFFFAOYSA-N biphenylacetylene Chemical group C1=CC=CC=C1C#CC1=CC=CC=C1 JRXXLCKWQFKACW-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000003098 cholesteric effect Effects 0.000 description 1
- 229940114081 cinnamate Drugs 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 150000002734 metacrylic acid derivatives Chemical class 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- WBYWAXJHAXSJNI-VOTSOKGWSA-M trans-cinnamate Chemical compound [O-]C(=O)\C=C\C1=CC=CC=C1 WBYWAXJHAXSJNI-VOTSOKGWSA-M 0.000 description 1
Images
Classifications
-
- 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
-
- 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
- G02F1/133711—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by organic films, e.g. polymeric films
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
Abstract
The application discloses a liquid crystal display panel, a preparation method thereof and a light ray adjusting system, wherein the preparation method comprises the following steps: providing a first substrate and a second substrate to the cassette; injecting a photopolymerizable monomer and a liquid crystal material between the first substrate and the second substrate to form a liquid crystal cell; the liquid crystal box is illuminated, so that the photopolymerization monomer forms a polymer retaining wall between the first substrate and the second substrate, the liquid crystal material forms a liquid crystal layer, the liquid crystal layer is arranged between the polymer retaining walls at intervals, and the wall thickness of the polymer retaining wall is greater than or equal to 5 mu m and less than or equal to 40 mu m. The polymer retaining wall with smaller wall thickness is arranged between the liquid crystal layers, so that the aperture opening ratio of the pixels is improved, and the display effect is improved.
Description
Technical Field
The present disclosure relates to the field of display technologies, and in particular, to a liquid crystal display panel, a manufacturing method thereof, and a light adjustment system.
Background
The flexible display panel has wide application due to the advantages of falling prevention, bending, light weight, thinness, portability and the like. Compared with an OLED display panel, the flexible liquid crystal display panel has mature production technology, high product stability and larger application potential on a large-size display screen.
In order to maintain a uniform liquid crystal cell thickness of the flexible liquid crystal display panel after being bent or curled for a long time, a polymer retaining wall is often required to be formed between an array substrate and a color film substrate of a liquid crystal cell. And arranging a mask plate on the outer side of the color film substrate, irradiating light to the color film substrate through an opening area of the mask plate, and polymerizing a liquid crystal layer in the liquid crystal box with a photopolymerization monomer in an area opposite to the opening area to form a polymer retaining wall so as to maintain the distance between the array substrate and the color film substrate. However, in the process of light irradiation, light may be scattered at the interface between the liquid crystal molecules and the molecules of the photopolymerizable monomer, and the opaque region outside the opening region may also have the scattered light, so that the photopolymerizable monomer may also be polymerized in the opaque region, which results in an increase in the thickness of the polymer retaining wall and the residue of the polymer, and the display effect of the flexible liquid crystal display panel is deteriorated. In order to meet the demand of higher and higher resolution panels, the thickness of the polymer retaining wall is also required to be smaller and smaller.
Disclosure of Invention
In order to solve the above problems, the present application provides a liquid crystal display panel, a method for manufacturing the same, and a light ray adjusting system to reduce the thickness of a polymer retaining wall.
The application provides a preparation method of a liquid crystal display panel, which comprises the following steps:
providing a first substrate and a second substrate to the cassette;
injecting a photopolymerizable monomer and a liquid crystal material between the first substrate and the second substrate to form a liquid crystal cell;
the liquid crystal box is illuminated, so that the photopolymerization monomer forms a polymer retaining wall between the first substrate and the second substrate, the liquid crystal material forms a liquid crystal layer, the liquid crystal layer is arranged between the polymer retaining walls at intervals, and the wall thickness of the polymer retaining wall is greater than or equal to 5 mu m and less than or equal to 40 mu m.
In some embodiments, the illuminating the liquid crystal cell comprises:
using a collimated light source to emit illuminating light;
and converging light rays towards the direction of a main optical axis of the light ray adjusting device by using the light ray adjusting device, wherein the converged light rays illuminate the liquid crystal box.
In some embodiments, the converging light rays in a direction of a main optical axis of the light ray adjusting device by using the light ray adjusting device includes:
the emergent direction of the light is adjusted to the focus of the first light adjusting element by using a first light adjusting element, and the emergent direction of the light is converged towards the main optical axis direction of a second light adjusting element by using a second light adjusting element, wherein the second light adjusting element is positioned at one side of the liquid crystal box, and the first light adjusting element is positioned at one side of the second light adjusting element far away from the liquid crystal box.
In some embodiments, an angle between the light rays exiting the second light ray adjustment element and the main optical axis is a convergence angle, the convergence angle being greater than or equal to 0 degrees and less than or equal to 30 degrees.
In some embodiments, before the light source emits the illuminating light, a mask plate is disposed on a side of the liquid crystal cell close to the light adjusting device, and an opening of the mask plate is aligned with a pre-irradiation area on the liquid crystal cell.
In some embodiments, the shape of the mask plate opening is any one of a regular triangle, a regular quadrangle, and a regular hexagon.
In some embodiments, the intensity of the concentrated light is 0.1mw/cm2～5mw/cm2。
In some embodiments, the intensity of the concentrated light is 0.1mw/cm2～1mw/cm2。
In some embodiments, the time for irradiating the light is 1h to 3 h.
The present application also provides a liquid crystal display panel, including:
a first substrate;
a second substrate arranged in a cassette with the first substrate;
the polymer retaining wall is arranged between the first substrate and the second substrate, one end of the polymer retaining wall is connected with the first substrate, and the other end of the polymer retaining wall is connected with the second substrate;
the liquid crystal layer is arranged between the polymer retaining walls at intervals;
wherein, the wall thickness of the polymer retaining wall is more than or equal to 5 μm and less than or equal to 40 μm.
In some embodiments, the wall thickness is greater than or equal to 5 μm and less than or equal to 30 μm.
The application still provides a light governing system for preparing liquid crystal display panel, liquid crystal display panel includes the liquid crystal cell, be provided with the photopolymerization monomer that is used for forming the polymer barricade in the liquid crystal cell, light governing system includes collimated light source and light adjusting device, light adjusting device be used for with the light that collimated light source sent assembles, the light of assembling shines to the photopolymerization monomer, so that the wall thickness of polymer barricade is more than or equal to 5 mu m and is less than or equal to 40 mu m.
Compared with the prior art, the method has the following beneficial effects:
the application provides a liquid crystal display panel, a preparation method thereof and a light ray adjusting system.A first substrate and a second substrate are arranged on a box; injecting a photopolymerizable monomer and a liquid crystal material between the first substrate and the second substrate to form a liquid crystal cell; the liquid crystal box is illuminated, so that the photopolymerization monomer forms a polymer retaining wall between the first substrate and the second substrate, the liquid crystal material forms a liquid crystal layer, the liquid crystal layer is arranged between the polymer retaining walls at intervals, and the wall thickness of the polymer retaining wall is greater than or equal to 5 mu m and less than or equal to 40 mu m. The polymer retaining wall with smaller wall thickness is arranged between the liquid crystal layers, so that the aperture opening ratio of the pixels is improved, and the display quality of the display panel can be improved.
Drawings
The technical solutions and other advantages of the present application will become apparent from the following detailed description of specific embodiments of the present application with reference to the accompanying drawings.
Fig. 1 is a schematic cross-sectional structure diagram of a liquid crystal display panel according to an embodiment of the present application.
Fig. 2 is a top view of a liquid crystal display panel according to an embodiment of the present disclosure.
Fig. 3 is a top view of another lcd panel according to an embodiment of the present disclosure.
Fig. 4 is a top view of another liquid crystal display panel provided in the embodiment of the present application.
Fig. 5 is a schematic flow chart of a method for manufacturing a liquid crystal display panel according to an embodiment of the present application.
Fig. 6 is a schematic optical path diagram provided in an embodiment of the present application.
Fig. 7 is a schematic diagram of an optical path of the second light ray in fig. 6.
Fig. 8 is a schematic diagram of a light conditioning system for fabricating a liquid crystal display panel according to an embodiment of the present disclosure.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. 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 application.
In the liquid crystal display technology, polymer retaining walls are added in a liquid crystal layer to limit the flow of liquid crystal in the liquid crystal layer and maintain the cell thickness of a liquid crystal cell. In the preparation process of the polymer retaining wall in the liquid crystal box, light penetrates through the opening area of the mask plate and irradiates the liquid crystal layer, the interface of liquid crystal molecules and photopolymerizable monomer molecules in the liquid crystal layer is scattered to the light-tight area, and the photopolymerizable monomer is polymerized in the light-tight area, so that the width of the polymer retaining wall is increased, the opening ratio is reduced, polymer residues are caused, and display defects are caused.
As shown in fig. 1, fig. 1 is a schematic cross-sectional structure diagram of a liquid crystal display panel 100 according to an embodiment of the present disclosure. In the embodiment of the present application, the liquid crystal display panel 100 includes a first substrate 110 and a second substrate 120, and the second substrate 120 and the first substrate 110 are disposed opposite to each other.
The first substrate 110 is an array substrate, and the second substrate 120 is a color filter substrate.
The liquid crystal display panel 100 further includes a polymer retaining wall 130, the polymer retaining wall 130 is disposed between the first substrate 110 and the second substrate 120, one end of the polymer retaining wall 130 is connected to the first substrate 110, the other end is connected to the second substrate 120, and the polymer retaining wall 130 is used to support the cell thickness of the first substrate 110 and the second substrate 120.
And a liquid crystal layer 140 spaced between the polymer barriers 130.
Wherein, the wall thickness d of the polymer retaining wall 130 is greater than or equal to 5 μm and less than or equal to 40 μm. As shown in fig. 2 to 4, fig. 2 is a top view of a liquid crystal display panel 100 provided in this embodiment. The orthographic projection of the polymer retaining wall 130 on the first substrate 110 or the second substrate 120 is a regular hexagon. Fig. 3 is a top view of another lcd panel 100 according to an embodiment of the present disclosure. The orthographic projection of the polymer retaining wall 130 on the first substrate 110 or the second substrate 120 is a quadrangle. Fig. 4 is a top view of another liquid crystal display panel 100 according to an embodiment of the present disclosure. The orthographic projection of the polymer retaining wall 130 on the first substrate 110 or the second substrate 120 is a regular triangle. The wall thickness of the polymer retaining wall 130 is the side length width d of a regular hexagon, a regular quadrangle or a regular trilateral, d can be 10 micrometers, 20 micrometers or 35 micrometers, and the like, and the wall thickness d with a value in the range enables the aperture opening ratio of the pixel to be improved, so that the display quality of the display panel can be improved.
In some embodiments, the wall thickness d is greater than or equal to 5 μm and less than or equal to 30 μm, such as 7 microns, 10 microns, 18 microns, and 25 microns, and a smaller wall thickness may further satisfy the requirement of a high aperture ratio of the display panel.
An embodiment of the present application provides a method for manufacturing a liquid crystal display panel, as shown in fig. 5, fig. 5 is a schematic flow chart of the method for manufacturing the liquid crystal display panel 100 in the embodiment of the present application. The method for manufacturing the liquid crystal display panel 100 includes the steps of:
step 101: the first substrate 110 and the second substrate 120 are provided to the cartridge.
The first substrate 110 is an array substrate, the second substrate 120 is a color film substrate, filling adhesive is coated between the first substrate 110 and the second substrate 120, the filling adhesive is located in the frame adhesive area, and the first substrate 110 and the second substrate 120 are assembled in a box-to-box manner.
Step 102: a photopolymerizable monomer and a liquid crystal material are injected between the first substrate 110 and the second substrate 120 to form a liquid crystal cell.
The photopolymerizable monomers are mixed in the liquid crystal material and injected together between the first substrate 110 and the second substrate 120. The liquid crystal material may be one or more of nematic phase, smectic phase, cholesteric phase and blue phase liquid crystal. The photopolymerizable monomer may be one or more selected from acrylate, acrylate derivative, methacrylate derivative, cinnamate, coumarin, styrylpyridine, styrylbenzopyrrolone, and diphenylacetylene.
Step 103: and irradiating the liquid crystal cell with light to enable the photopolymerizable monomers to form polymer retaining walls 130 between the first substrate 110 and the second substrate 120, the liquid crystal material to form a liquid crystal layer 140, the liquid crystal layer 140 is arranged at intervals between the polymer retaining walls 130, and the wall thickness of the polymer retaining walls 130 is greater than or equal to 5 μm and less than or equal to 40 μm.
After the manufacturing process of the liquid crystal box is finished, a light source is provided, and light emitted by the light source irradiates a preset area of the liquid crystal box. The light source may be an ultraviolet light source and the light may be collimated light. Under the illumination condition, the photopolymerization monomer is polymerized and is simultaneously separated from the liquid crystal material to form a polymer retaining wall with a proper width. The wall thickness of the polymer retaining wall prepared by the embodiment is more than or equal to 5 microns and less than or equal to 40 microns, so that the aperture opening ratio of the pixel is improved, light leakage is avoided, and the display effect is improved.
In some embodiments, illuminating the liquid crystal cell comprises:
a collimated light source is used to emit the illuminating light. The collimated light source can be an ultraviolet light source, and the light rays are collimated light rays.
And the light ray adjusting device is used for converging the light rays towards the direction of the main optical axis of the light ray adjusting device, and the converged light rays illuminate the liquid crystal box. In this embodiment, the light adjusting device is used to adjust the alignment light so that the light converges before entering the liquid crystal cell. The convergence is towards the direction of the main optical axis of the light ray adjusting device, the incident width of the light ray is reduced, correspondingly, the width of the region irradiated by the light ray on the liquid crystal box is reduced, and the wall thickness of the formed polymer retaining wall is reduced. Of course, the converging direction of the light ray adjusting device is not limited thereto, and the object of the present application can be achieved as long as the light ray path exiting from the light ray adjusting device can be brought closer to the main optical axis.
In some embodiments, converging light toward a main optical axis of a light conditioning device with the light conditioning device comprises:
the emergent direction of the light is adjusted to the focus of the first light adjusting element by the first light adjusting element, and the emergent direction of the light is converged towards the main optical axis direction of the second light adjusting element by the second light adjusting element, wherein the second light adjusting element is positioned at one side of the liquid crystal box, and the first light adjusting element is positioned at one side of the second light adjusting element far away from the liquid crystal box.
Referring to fig. 6, fig. 6 is a schematic view of an optical path provided in the present embodiment. As shown in fig. 6, the light adjusting device includes a first light adjusting element 220 and a second light adjusting element 240, the second light adjusting element 240 is located on one side of the liquid crystal cell 260, and the first light adjusting element 220 is located on one side of the second light adjusting element 240 away from the liquid crystal cell 260. The collimated light rays 210 form first light rays 230 under the adjustment of the first light ray adjusting element 220, and the emergent direction of the first light rays 230 converges toward the focal point F of the first light ray adjusting element 220. The first light ray 230 forms a second light ray 250 under the adjustment of the second light ray adjusting element 240, and the second light ray 250 converges toward the direction of the main optical axis L of the second light ray adjusting element 240. The second light ray 250 is incident on the liquid crystal cell 260. The second light 250 converged toward the main optical axis L is incident to the liquid crystal cell 260, the region irradiated by the second light 250 on the liquid crystal cell 260 has a suitable width, and the thickness of the polymer retaining wall formed by the photopolymerizable monomer in the irradiated region is small, thereby improving the aperture ratio of the pixel. And the converged second light 250 is scattered less at the interface between the liquid crystal molecules and the photopolymerizable monomer molecules, so that the polymer residue is reduced, the edge roughness of the polymer retaining wall is effectively reduced, and the light leakage phenomenon at the edge of the pixel is improved.
It should be noted that the light adjusting device described herein is not limited to include the first light adjusting element 220 and the second light adjusting element 240, and may include a plurality of other light adjusting elements capable of changing the path direction of light. Other light adjusting elements that can change the path direction of the light may be the same as or different from the first light adjusting element 220 and the second light adjusting element 240. For example, a third light adjusting element is disposed between the first light adjusting element 220 and the second light adjusting element 240, light emitted from the third light adjusting element passes through a focal point of the third light adjusting element and then enters the second light adjusting element 240, and the second light adjusting element 240 converges incident light toward a main optical axis of the second light adjusting element 240. Of course, in other embodiments, the light conditioning device may also include other light conditioning elements, which are not listed here.
In some implementations, the first light conditioning element 220 and the second light conditioning element 240 are both convex lenses. Specifically, the first light ray adjusting element 220 is a first convex lens, the second light ray adjusting element 240 is a second convex lens, the collimated light ray 210 enters the first convex lens, the light ray emitted from the first convex lens passes through the focal point of the first convex lens and then enters the second convex lens, and the light ray emitted from the second convex lens converges in the direction of the main optical axis of the second convex lens. In this embodiment, the convex lens is used as the light adjusting device to adjust the direction of light, so that the direction of light incident to the liquid crystal box can be flexibly adjusted, the width of the light incident to the liquid crystal box is smaller than the width of the opening of the mask plate, and the thickness of the wall of the polymer retaining wall can be reduced.
In some embodiments, the angle between the light rays exiting the second light ray adjustment element 240 and the main optical axis L is a convergence angle θ, θ being greater than or equal to 0 degrees and less than or equal to 30 degrees. Referring to fig. 7, fig. 7 is a schematic view of a light path of a second light ray in the embodiment of the present application. The angle between the light ray exiting from the second light ray adjustment element 240, i.e. the second light ray 250, and the main optical axis L is θ. The second light ray 250 converges in the direction of the main optical axis L, as shown in fig. 7, L1 and L2 are parallel lines of the main optical axis L, and the angle between the second light ray 250 and the parallel lines L1 and L2 is θ. With reference to fig. 6, when the convergence angle θ is greater than or equal to 0 degree and less than or equal to 30 degrees, for example, θ may be 5 degrees, 10 degrees, 15 degrees, 20 degrees and 25 degrees, the second light 250 irradiates the region with a suitable width on the liquid crystal cell 260 to form a polymer retaining wall with a smaller wall thickness, and at the same time, the scattering of light is reduced, thereby reducing the polymer residue, improving the accuracy of the edge of the polymer retaining wall, improving the light leakage at the edge of the pixel, and improving the display effect.
In some embodiments, a mask is placed on the side of the liquid crystal cell 260 adjacent to the light conditioning device prior to using the collimated light source to emit the illuminating light.
As shown in fig. 6, a mask 270 is disposed on the side of the liquid crystal cell 260 close to the second light adjusting element 240, an opening of the mask 270 is aligned with a pre-irradiation region on the liquid crystal cell 260, and the second light 250 is irradiated to the pre-irradiation region on the liquid crystal cell 260 through the opening. Compared with the prior art, the width of the pre-irradiation area of the embodiment can be controlled through the opening width of the mask plate, the irradiation width of light can be smaller than the opening width of the mask plate through the adjustment of the light adjusting device, the scattering of the light is reduced, the thickness of the formed polymer retaining wall is smaller than the opening width of the mask plate, the roughness of the edge of the polymer retaining wall can be reduced, and the display effect is improved.
In some embodiments, the opening of the mask plate 270 has any one of a regular triangle, a regular quadrangle, and a regular hexagon.
The second light 250 irradiates the liquid crystal cell 260 through the opening of the mask 270, and with reference to fig. 2 to 4, the region corresponding to the mask opening on the liquid crystal cell 260 is the formation position of the polymer retaining wall, and the shape of the mask opening is the shape of the polymer retaining wall. In one embodiment, when the opening of the mask plate 270 is in the shape of a regular hexagon, only three scattered lights of the second light 250 are superimposed at the vertex of the hexagon, and the opening of the regular hexagon can reduce the scattering of incident lights and reduce the polymer residue, and the edge of the formed polymer retaining wall is neater and has higher precision compared with the openings of the regular triangle and the regular quadrilateral.
In some embodiments, the intensity of the second light ray 250 is 0.1mw/cm2～5mw/cm2For example, 1mw/cm2、2mw/cm2、2.5mw/cm2、3mw/cm2And 4mw/cm2The low-intensity light irradiation can weaken the scattering of light and effectively reduce the residue of the polymer.
In some embodiments, the intensity of the second light ray 250 is 0.1mw/cm2～1mw/cm2For example, 0.5mw/cm2And 0.8mw/cm2In the embodiment, the liquid crystal box is irradiated by light with lower light intensity, so that the scattering of the light can be further weakened, the edge precision of the polymer retaining wall formed by the photo-polymerization monomer is higher, and the display effect of the display panel can be further improved.
In some embodiments, the light 210 is irradiated for 1h to 3 h. The irradiation time is not short enough, for example, less than 1h, the short irradiation causes incomplete polymerization of the photopolymerizable monomer, and the formed polymer retaining wall cannot limit the flow of the liquid crystal and maintain the cell thickness of the liquid crystal cell; the irradiation time is not longer, for example, longer than 3h, and the wall thickness of the formed polymer retaining wall is increased due to the longer irradiation time. In the embodiment of the present application, the liquid crystal cell 260 is irradiated with light having low intensity and converging in the direction of the main optical axis, the irradiation time may be 1h to 3h, for example, 1.5h and 2h, and the wall thickness of the formed polymer retaining wall 130 may be smaller than the opening width of the mask plate 270. As the irradiation time increases, the wall thickness gradually increases to the width of the mask opening.
In one embodiment, a mask 270 having openings in the shape of regular hexagons is used as the mask, the width of the openings of the mask is 30 μm, and the intensity of the collimated light source is 1mw/cm2The light 210 is adjusted by the first light adjusting element 220 and the second light adjusting element 240 to form a second light 250, the convergence angle θ of the second light 250 is 5 degrees, the light is irradiated for 2 hours, and the photopolymerizable monomers in the region corresponding to the opening of the mask plate in the liquid crystal cell 260 are polymerized to form a polymer retaining wall, wherein the wall thickness of the polymer retaining wall is 21.12 μm. The wall thickness of the polymer retaining wall is smaller than the opening of the mask plate 270The mouth is wide, and the edge of polymer barricade is neat, and the precision is high.
In the preparation method of the liquid crystal display panel, the polymer retaining wall is formed between the first substrate and the second substrate which are arranged opposite to the box, the wall thickness of the polymer retaining wall is greater than or equal to 5 micrometers and less than or equal to 40 micrometers, the wall thickness of the polymer retaining wall is small, and the aperture opening ratio of pixels is improved; the polymer retaining wall has the advantages of tidy edges and high precision, and the display quality is improved.
Referring to fig. 8, fig. 8 is a diagram illustrating a light conditioning system 300 for fabricating a liquid crystal display panel according to an embodiment of the present disclosure. The liquid crystal display panel includes a liquid crystal cell in which a photo-polymerization monomer for forming a polymer retaining wall is disposed, and the light ray adjusting system 300 includes a collimated light source 310 and a light ray adjusting device for converging light rays emitted from the collimated light source 310, and the converged light rays are irradiated to the photo-polymerization monomer, so that the wall thickness of the polymer retaining wall is greater than or equal to 5 μm and less than or equal to 40 μm.
The light adjusting device comprises a first light adjusting element 320 and a second light adjusting element 330, wherein the second light adjusting element 330 is positioned at one side of the liquid crystal box, and the first light adjusting element 320 is positioned at one side of the second light adjusting element 330 far away from the liquid crystal box.
The first light adjusting element 320 adjusts the emitting direction of the light to the focal point F of the first light adjusting element 320, the light emitted from the first light adjusting element 320 enters the second light adjusting element 330, and the second light adjusting element 330 is configured to converge the emitting direction of the light to the direction of the main optical axis L of the second light adjusting element 330.
An angle between the light emitted from the second light ray adjustment element 330 and the main optical axis L is a convergence angle, and the convergence angle is greater than or equal to 0 degree and less than or equal to 30 degrees.
In some embodiments, the first light adjusting element 320 and the second light adjusting element 330 are convex lenses, and the distance between the first light adjusting element 320 and the second light adjusting element 330 and the distance between the second light adjusting element 330 and the liquid crystal cell can be flexibly adjusted by adjusting the distance between the second light adjusting element 330 and the liquid crystal cellThe size of the convergence angle of the emergent ray. As an example, when the first light adjusting element 320 and the second light adjusting element 330 are both convex lenses (focal length is 7.5cm), the intensity of the light emitted from the second light adjusting element 330 can be adjusted to 1mw/cm by setting the interval between the first light adjusting element 320 and the second light adjusting element 330 to 16cm and the distance between the second light adjusting element 330 and the liquid crystal cell to 11.43cm2The convergence angle was adjusted to 5 degrees.
In addition, the light regulating system 300 can expand the light intensity range of the light, and in some embodiments, the light regulating system 300 can adjust the light intensity of the light from 0 to 5mw/cm2Is expanded to 0 to 8mw/cm2. That is, the collimated light source 310 emits light in the range of 0 to 5mw/cm2After the light is adjusted by the light adjusting device, the light intensity of the light emitted from the second light adjusting element 330 can be 0 to 8mw/cm2In the meantime.
The light ray adjusting system 300 provided by the application can flexibly adjust the convergence angle and the light intensity of emergent light rays, the intensity of scattered light is weakened when the emergent light rays are incident to a liquid crystal box, the polymer residues are reduced, and the precision of the edge of a polymer retaining wall is improved.
The liquid crystal display panel, the manufacturing method thereof and the light ray adjusting system provided by the present application are introduced in detail, and the principle and the implementation of the present application are explained in detail by applying specific examples, and the description of the implementation is only used to help understanding the technical scheme and the core idea of the present application; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may be modified or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the scope of the present invention in its corresponding aspects.
Claims (12)
1. The preparation method of the liquid crystal display panel is characterized by comprising the following steps:
providing a first substrate and a second substrate to the cassette;
injecting a photopolymerizable monomer and a liquid crystal material between the first substrate and the second substrate to form a liquid crystal cell;
the liquid crystal box is illuminated, so that the photopolymerization monomer forms a polymer retaining wall between the first substrate and the second substrate, the liquid crystal material forms a liquid crystal layer, the liquid crystal layer is arranged between the polymer retaining walls at intervals, and the wall thickness of the polymer retaining wall is greater than or equal to 5 mu m and less than or equal to 40 mu m.
2. The method according to claim 1, wherein the irradiating the liquid crystal cell with light comprises:
using a collimated light source to emit illuminating light;
and converging light rays towards the direction of a main optical axis of the light ray adjusting device by using the light ray adjusting device, wherein the converged light rays illuminate the liquid crystal box.
3. The method for preparing a light source according to claim 2, wherein the converging light rays to the direction of the main optical axis of the light ray adjusting device by using the light ray adjusting device comprises:
the emergent direction of the light is adjusted to the focus of the first light adjusting element by using a first light adjusting element, and the emergent direction of the light is converged towards the main optical axis direction of a second light adjusting element by using a second light adjusting element, wherein the second light adjusting element is positioned at one side of the liquid crystal box, and the first light adjusting element is positioned at one side of the second light adjusting element far away from the liquid crystal box.
4. A producing method according to claim 3, wherein an angle between a light ray emitted from said second light ray adjusting element and said main optical axis is a converging angle, and said converging angle is greater than or equal to 0 degree and less than or equal to 30 degrees.
5. The method according to claim 2, wherein a mask is disposed on the side of the liquid crystal cell adjacent to the light adjusting device before the collimated light source is used to emit the illuminating light, and the openings of the mask are aligned with the pre-illuminated areas on the liquid crystal cell.
6. The production method according to claim 5, wherein the shape of the mask plate opening is any one of a regular triangle, a regular quadrangle, and a regular hexagon.
7. The method of claim 2, wherein the intensity of the concentrated light is 0.1mw/cm2～5mw/cm2。
8. The method of claim 7, wherein the intensity of the concentrated light is 0.1mw/cm2～1mw/cm2。
9. The method according to claim 2, wherein the time for irradiating with the light is 1 to 3 hours.
10. A liquid crystal display panel, comprising:
a first substrate;
a second substrate arranged in a cassette with the first substrate;
the polymer retaining wall is arranged between the first substrate and the second substrate, one end of the polymer retaining wall is connected with the first substrate, and the other end of the polymer retaining wall is connected with the second substrate;
the liquid crystal layer is arranged between the polymer retaining walls at intervals;
wherein, the wall thickness of the polymer retaining wall is more than or equal to 5 μm and less than or equal to 40 μm.
11. The liquid crystal display panel according to claim 10, wherein the wall thickness is greater than or equal to 5 μm and less than or equal to 30 μm.
12. The utility model provides a light governing system for preparing liquid crystal display panel, liquid crystal display panel includes the liquid crystal cell, be provided with the photopolymerization monomer that is used for forming the polymer barricade in the liquid crystal cell, its characterized in that, light governing system includes collimated light source and light adjusting device, light adjusting device is used for with the light that collimated light source sent assembles, the light of assembling shine to photopolymerization monomer, so that the wall thickness of polymer barricade is more than or equal to 5 mu m and is less than or equal to 40 mu m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110246399.1A CN112987414A (en) | 2021-03-05 | 2021-03-05 | Liquid crystal display panel, preparation method thereof and light ray adjusting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110246399.1A CN112987414A (en) | 2021-03-05 | 2021-03-05 | Liquid crystal display panel, preparation method thereof and light ray adjusting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112987414A true CN112987414A (en) | 2021-06-18 |
Family
ID=76353121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110246399.1A Pending CN112987414A (en) | 2021-03-05 | 2021-03-05 | Liquid crystal display panel, preparation method thereof and light ray adjusting system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112987414A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007047707A (en) * | 2005-08-12 | 2007-02-22 | Ricoh Co Ltd | Illuminator, optical modulation device, and projection type display device |
| WO2015080538A2 (en) * | 2013-11-29 | 2015-06-04 | 성낙훈 | Linear light source generating device and exposure device having same |
| CN107942567A (en) * | 2017-12-29 | 2018-04-20 | 深圳市华星光电技术有限公司 | A kind of display panel, display and production method, liquid crystal media mixture |
| CN109581729A (en) * | 2019-01-03 | 2019-04-05 | 京东方科技集团股份有限公司 | A kind of display panel and display device |
| CN110181179A (en) * | 2019-05-31 | 2019-08-30 | 大族激光科技产业集团股份有限公司 | Laser cutting device and laser cutting method |
| CN110806662A (en) * | 2019-10-28 | 2020-02-18 | 武汉华星光电技术有限公司 | Display panel and manufacturing method thereof |
| CN212364761U (en) * | 2020-05-20 | 2021-01-15 | 昆山龙腾光电股份有限公司 | Liquid crystal display panel, liquid crystal display device and mask plate |
-
2021
- 2021-03-05 CN CN202110246399.1A patent/CN112987414A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007047707A (en) * | 2005-08-12 | 2007-02-22 | Ricoh Co Ltd | Illuminator, optical modulation device, and projection type display device |
| WO2015080538A2 (en) * | 2013-11-29 | 2015-06-04 | 성낙훈 | Linear light source generating device and exposure device having same |
| CN107942567A (en) * | 2017-12-29 | 2018-04-20 | 深圳市华星光电技术有限公司 | A kind of display panel, display and production method, liquid crystal media mixture |
| CN109581729A (en) * | 2019-01-03 | 2019-04-05 | 京东方科技集团股份有限公司 | A kind of display panel and display device |
| CN110181179A (en) * | 2019-05-31 | 2019-08-30 | 大族激光科技产业集团股份有限公司 | Laser cutting device and laser cutting method |
| CN110806662A (en) * | 2019-10-28 | 2020-02-18 | 武汉华星光电技术有限公司 | Display panel and manufacturing method thereof |
| CN212364761U (en) * | 2020-05-20 | 2021-01-15 | 昆山龙腾光电股份有限公司 | Liquid crystal display panel, liquid crystal display device and mask plate |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7808706B2 (en) | Light management films for displays | |
| DE60101270T2 (en) | LIGHTING UNIT | |
| DE69627561T2 (en) | Projection image display device | |
| AU2004246669B2 (en) | Micro-lens array based light transmitting screen with tunable gain | |
| TWI383192B (en) | Light collimating device | |
| CN110865509B (en) | Projection screen and manufacturing method thereof | |
| JP4788314B2 (en) | Light diffusion sheet, transmissive screen, rear projection display device, and liquid crystal display device | |
| KR20080042908A (en) | Light deflection sheet and its manufacturing method | |
| KR20060051369A (en) | Microlens array, manufacturing method of microlens array and liquid crystal display mounting microlens array | |
| US20090097229A1 (en) | Light management films, back light units, and related structures | |
| CN101561522A (en) | Lens array sheet, light source and liquid crystal display device | |
| AU2018213856A1 (en) | Method and apparatus using light engines for photo-curing of liquid polymers to form three-dimensional objects | |
| CN102768472A (en) | Method and device for realizing liquid crystal arbitrary orientation control through numerical control micromirror array photoetching | |
| CN104335080A (en) | Optical element, fabrication method thereof, display element, and projecting image display device | |
| CN109143663A (en) | A kind of liquid crystal display panel and 3D printer | |
| CN106918932A (en) | A kind of optically controlled liquid crystal spatial light modulator and its application | |
| CN101849200A (en) | Method for manufacturing optical member, parent material for manufacture of optical member, transfer mold, lighting system for display device, display device, and television receiver | |
| CN101956950B (en) | Optical thin plate and manufacture method thereof as well as backlight module | |
| JP2007526492A (en) | Microlens array-based transmission screen | |
| CN109856861A (en) | A kind of driving method of display panel, display device and display panel | |
| CN112987414A (en) | Liquid crystal display panel, preparation method thereof and light ray adjusting system | |
| CN208737151U (en) | Backlight module and liquid crystal display device | |
| DE112019003416T5 (en) | IMAGE DISPLAY DEVICE | |
| CN104062799A (en) | Optical element, projection type image display apparatus, and original recording | |
| JP2007293288A (en) | Light control film laminate for projection screen, its manufacturing method and projection screen |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210618 |
|
| RJ01 | Rejection of invention patent application after publication |