CN113671757B - Liquid crystal display panel and manufacturing method thereof - Google Patents
Liquid crystal display panel and manufacturing method thereof Download PDFInfo
- Publication number
- CN113671757B CN113671757B CN202111009951.1A CN202111009951A CN113671757B CN 113671757 B CN113671757 B CN 113671757B CN 202111009951 A CN202111009951 A CN 202111009951A CN 113671757 B CN113671757 B CN 113671757B
- Authority
- CN
- China
- Prior art keywords
- liquid crystal
- area
- substrate
- pretilt angle
- crystal layer
- 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.)
- Active
Links
- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 185
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 10
- 239000000758 substrate Substances 0.000 claims abstract description 57
- 230000004044 response Effects 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims description 9
- 239000003086 colorant Substances 0.000 claims description 5
- 230000001678 irradiating effect Effects 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 3
- 230000000007 visual effect Effects 0.000 abstract description 8
- 238000010586 diagram Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005286 illumination Methods 0.000 description 3
- 239000000178 monomer Substances 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
- G02F1/133753—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers with different alignment orientations or pretilt angles on a same surface, e.g. for grey scale or improved viewing angle
-
- 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
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133526—Lenses, e.g. microlenses or Fresnel lenses
-
- 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
Landscapes
- 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)
- Liquid Crystal (AREA)
Abstract
The application discloses a liquid crystal display panel and a manufacturing method of the liquid crystal display panel for adjusting a liquid crystal pretilt angle, wherein the liquid crystal display panel comprises: a first substrate; a second substrate disposed opposite to the first substrate; and a liquid crystal layer disposed between the first substrate and the second substrate; the liquid crystal layer comprises a plurality of liquid crystals, and each liquid crystal has a pretilt angle; the liquid crystal layer at least comprises a second area and a first area, wherein the liquid crystal located in the first area has a first pretilt angle, and the liquid crystal located in the second area has a second pretilt angle. The liquid crystal display panel simultaneously has the liquid crystal with larger pretilt angle positioned in the first area and the liquid crystal with smaller pretilt angle positioned in the second area, so that the problems of low response speed and dark state visual angle can be solved simultaneously.
Description
Technical Field
The present disclosure relates to a liquid crystal display panel, and particularly to a liquid crystal display panel and a method for fabricating the same for adjusting pretilt angle of liquid crystal.
Background
In the conventional VA mode LCD, a pixel design of multi-domain (LCD) is generally adopted to improve color shift under a large viewing angle due to a large difference in birefringence of liquid crystal. The dark state visual angle of VA liquid crystal display is strongly related to the pretilt angle of liquid crystal, and lowering the pretilt angle of liquid crystal can improve the dark state visual angle and solve the color cast problem, but lowering the pretilt angle of liquid crystal can lead to the reduction of the response time of the display. Therefore, the problems of dark viewing angle and slow display response can only be solved, and a liquid crystal display capable of simultaneously solving the two problems is highly demanded.
Disclosure of Invention
The invention aims to provide a liquid crystal display panel and a manufacturing method of the liquid crystal display panel for adjusting the pretilt angle of liquid crystal, which can simultaneously solve the problems of low response speed and dark state visual angle.
In order to achieve the above object, the present invention provides a liquid crystal display panel comprising: a first substrate; a second substrate disposed opposite to the first substrate; and a liquid crystal layer disposed between the first substrate and the second substrate; the liquid crystal layer comprises a plurality of liquid crystals, and each liquid crystal has a pretilt angle; the liquid crystal layer at least comprises a first area and a second area, wherein the liquid crystal in the first area has a first pretilt angle, and the liquid crystal in the second area has a second pretilt angle.
Further, the second pretilt angle is smaller than the first pretilt angle, and the first area accounts for 10% -20% of the area of the liquid crystal layer.
Further, the first pretilt angle is 2.5 ° and the second pretilt angle is 0.6 °.
In order to achieve the above object, the present invention further provides a method for manufacturing a liquid crystal display panel for adjusting a pretilt angle of liquid crystal, comprising the steps of: sealing a liquid crystal layer between a first substrate and a second substrate which are oppositely arranged, wherein the liquid crystal layer comprises a plurality of liquid crystals; setting a middle piece on the upper surface of the second substrate; irradiating the liquid crystal layer through the intermediate piece by adopting at least two ultraviolet lights with different intensities, wherein the ultraviolet lights are irradiated to the liquid crystal layer through the intermediate piece, so that the liquid crystal layer at least comprises a first area and a second area, wherein the liquid crystal positioned in the first area has a first pretilt angle, and the liquid crystal positioned in the second area has a second pretilt angle; and removing the middleware.
Further, the intermediate piece is a mask plate and is provided with a plurality of light-transmitting areas; the second substrate is provided with a first area, a second area and a third area, wherein the area irradiated by ultraviolet light through the light-transmitting area is the first area, and the rest is the second area, and the ultraviolet light irradiation intensity received by the second area is smaller than that received by the first area.
Further, the first substrate and the second substrate each comprise a plurality of opposite pixel units, and each pixel unit comprises a plurality of sub-pixels with different colors; and each light-transmitting area of the mask plate is respectively and correspondingly arranged with the sub-pixels.
Further, the intermediate piece is a lens group plate, and a plurality of lenses are arranged on the lens group plate, and each lens is used for gathering or dispersing light rays; on the liquid crystal layer, the area irradiated by ultraviolet light through the lens is a first area, the rest is a second area, and the ultraviolet light irradiation intensity received by the first area is larger than that received by the second area.
Further, the first substrate and the second substrate each comprise a plurality of opposite pixel units, and each pixel unit comprises a plurality of sub-pixels with different colors; at least one lens in the lens group plate is staggered with the sub-pixels respectively.
Further, the lens in the lens group plate is a convex lens or a combination of the convex lens and the concave lens.
Further, the intensity of the ultraviolet light received by the first region is greater than or equal to 0.26mw/cm 2 The intensity of the ultraviolet light received by the second area is less than 0.26mw/cm 2 。
The invention has the technical effects that the liquid crystal display panel and the preparation method thereof are provided, and the liquid crystal display panel simultaneously has the liquid crystal with larger pretilt angle in the first area and the liquid crystal with smaller pretilt angle in the second area, so that the problems of low response speed and dark state visual angle can be solved simultaneously.
Drawings
Technical solutions and other advantageous effects of the present application will be made apparent from the following detailed description of specific embodiments of the present application with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of a liquid crystal display panel according to embodiment 1 of the present application.
Fig. 2 is a schematic structural diagram of a mask plate as a middleware provided in embodiment 1 of the present application.
Fig. 3 is a schematic structural diagram of a liquid crystal with different pretilt angles according to embodiment 1 of the present application.
Fig. 4 is a schematic structural diagram of a liquid crystal alignment structure according to embodiment 1 of the present application.
Fig. 5 is a flowchart of a method for manufacturing a liquid crystal display panel according to embodiment 1 of the present application.
Fig. 6 is a schematic structural diagram of a lens assembly plate as an intermediate member according to embodiment 2 of the present application.
The components of the drawings are identified as follows:
100. a liquid crystal layer; 110. A first region;
120. a second region; 200. A mask plate;
210. a light transmission region; 211. A shielding region;
300. a lens group plate; 310. A lens;
130. a liquid crystal; 10. A first substrate;
20. a second substrate; 30. A first alignment film;
40. a second alignment film; 110a, a first sub-region;
120a, a second subregion; 311. A gap.
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. In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate an orientation or positional relationship based on that shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
Example 1
As shown in fig. 1, the present embodiment provides a liquid crystal display panel, which includes a first substrate 10, a second substrate 20, and a liquid crystal layer 100 disposed between the first substrate 10 and the second substrate 20, wherein the first substrate 10 is an array substrate, and the second substrate 20 is a color film substrate.
The liquid crystal display panel provided in this embodiment further includes alignment films disposed on the first substrate 10 and the second substrate 20, respectively, that is, a first alignment film 30 disposed on the first substrate 10 and a second alignment film 40 disposed on the second substrate 20.
As shown in fig. 2-3, the liquid crystal layer 100 includes a plurality of liquid crystals 130 and liquid crystal reaction monomers, the surfaces of the first alignment film 30 and the second alignment film 40 have liquid crystal alignment polymers, and after being irradiated by ultraviolet light, the liquid crystals 130 are guided to be aligned, and the liquid crystals 130 are aligned, so that the liquid crystals 130 have at least one pretilt angle. The magnitude of the pretilt angle directly influences the response time of the display panel, wherein the larger the pretilt angle is, the faster the response speed is. The dark viewing angle displayed by the liquid crystal 130 is directly related to the pretilt angle of the liquid crystal 130, and decreasing the pretilt angle can improve the dark viewing angle. To solve the problems of low viewing angle and response speed in the dark state, the magnitude of pretilt angle of the liquid crystal 130 is required to be opposite, so that the two problems are difficult to solve simultaneously.
To solve the above-described problem, the liquid crystal layer 100 of the present embodiment has at least one first region 110 and at least one second region 120. The pretilt angle of the liquid crystal 130 in the first area 110 is a first pretilt angle θ1, the pretilt angle of the liquid crystal 130 in the second area 120 is a second pretilt angle θ2, and the first pretilt angle θ1 is not equal to the second pretilt angle θ2. For example, the first pretilt θ1 may be greater than the second pretilt θ2 or less than the second pretilt θ2.
In order to more intuitively show how the magnitude of the pretilt angle of the liquid crystal affects the display effect, the second pretilt angle θ2 is smaller than the first pretilt angle θ1 in this embodiment is taken as an example for illustration. The liquid crystal 130 located in the first area 110 is defined as a liquid crystal 130 with a larger pretilt angle, so as to improve the response time of the display panel and solve the problem of slow response speed; the liquid crystal in the second region 120 is defined as a liquid crystal 130 with a smaller pretilt angle, so as to solve the problem of dark viewing angle. Therefore, the liquid crystal display panel of the present embodiment has the liquid crystal 130 with a larger pretilt angle located in the first region 110 and the liquid crystal 130 with a smaller pretilt angle located in the second region 120, so that the problems of low response speed and dark viewing angle can be solved at the same time.
It should be noted that, in the present embodiment, the pretilt angle of the liquid crystal 130 in the second region 120 is smaller than that of the liquid crystal 130 in the first region 110, which is opposite to the two regions. In this case, the plurality of liquid crystals 130 in the first region 110 may have a plurality of different pretilt angles, and similarly, the plurality of liquid crystals 130 in the second region 120 may have a plurality of different pretilt angles, but one liquid crystal having the largest pretilt angle in the second region 120 may be necessarily smaller than one liquid crystal having the smallest pretilt angle in the first region 110.
In this embodiment, the first pretilt angle is preset to be 2.5 ° and the second pretilt angle is preset to be 0.6 °. Of course, in other embodiments, the two pretilt angles may take other values, which are not specifically limited in this embodiment. In the conventional lcd panel, the pretilt angle of the liquid crystal 130 is generally 1 °, the response speed is slow, and the lcd panel has a certain dark viewing angle. In the embodiment, the pretilt angle of the liquid crystal 130 in the first region 110 is larger, the pretilt angle of the liquid crystal 130 in the second region 120 is smaller, so that the response speed can be better improved, and the problem of dark viewing angle can be solved.
It should be noted that the first region 110 includes at least one first sub-region 110a, the second region 120 includes at least one second sub-region 120a, the first sub-region 110a and the second sub-region 120a are disposed adjacent to each other, and the patterns of the first sub-region and the second sub-region are mutually complementary to form a symmetrical pattern. The pretilt angle of the liquid crystal 130 in the second sub-region 120a is smaller than that of the liquid crystal 130 in the first sub-region 110a, so that the dark state viewing angle problem and the slow corresponding speed problem of each position of the liquid crystal display panel can be solved.
In some embodiments, the liquid crystal layer 100 may also have a third region or even a fourth region (not shown), and the number of regions is not specifically limited in this embodiment. The pretilt angles of the third region and the fourth region can be larger than the pretilt angle of the liquid crystal 130 in the prior art by 1 degree, and can work together with the first region 110 to improve the response speed of the liquid crystal display panel; the pretilt angles of the third and fourth regions may be smaller than 1 ° of the pretilt angle of the liquid crystal 130 in the prior art, and may improve the dark viewing angle of the liquid crystal display panel by cooperating with the second region 120.
Further, the first area 110 occupies 10% -20% of the area of the liquid crystal layer 100, and the second area 120 occupies 80% -90% of the area of the liquid crystal layer 100, where the area of the first area 110 is smaller, but the pretilt angle is larger, so that the response speed can be significantly improved; the area of the second region 120 is larger, so that the dark viewing angle problem of the whole liquid crystal display panel surface can be significantly improved.
In the liquid crystal display panel provided in this embodiment, the first substrate 10 and the second substrate 20 each include a plurality of pixel units disposed in a pixel, and each pixel unit includes a plurality of sub-pixels with different colors. As shown in fig. 4, after exposing the second substrate 20 and the first substrate 10, for example, a 4-Domain (Domain) liquid crystal alignment of a single sub-pixel is formed. In one domain of the sub-pixel, the liquid crystal with the first pretilt angle theta 1 and the liquid crystal with the second pretilt angle theta 2 are arranged, wherein the liquid crystal with the large pretilt angle can push the liquid crystal with the small pretilt angle to topple over, namely, two or more liquid crystals with different pretilt angles can be formed in one sub-pixel, so that the liquid crystal inversion diversity is increased. Therefore, by arranging liquid crystals with different pretilt angles in one sub-pixel, the response time of the liquid crystal display panel can be improved, and the dark state visual angle of the liquid crystal display panel can be improved.
Therefore, the liquid crystal display panel provided in this embodiment has two or more kinds of liquid crystals 130 with different pretilt angles, so that the problems of low dark viewing angle and low response speed of the liquid crystal display panel can be respectively solved.
As shown in fig. 5, the present embodiment also provides a method for manufacturing a liquid crystal display panel for adjusting a pretilt angle, which includes the following steps S1) to S4).
S1) sealing a liquid crystal layer between the first substrate 10 and the second substrate 20 disposed opposite to each other, the liquid crystal layer including a plurality of liquid crystals, see fig. 2 to 3.
The first alignment film 30 is formed on the surface of the first substrate 10, and the second alignment film 40 is formed on the surface of the second substrate 20. The liquid crystal layer 100 includes a plurality of liquid crystals 130 and liquid crystal reaction monomers, and the surfaces of the first alignment film 30 and the second alignment film 40 have liquid crystal alignment polymers, referring to fig. 2 to 3.
S2) providing an intermediate member on the upper surface of the second substrate 20, see fig. 2 to 3.
S3) irradiating the liquid crystal layer through the intermediate piece by adopting at least two ultraviolet lights with different intensities, wherein the ultraviolet lights are irradiated to the liquid crystal layer through the intermediate piece, so that the liquid crystal layer at least comprises a first area and a second area, wherein the liquid crystal positioned in the first area has a first pretilt angle, and the liquid crystal positioned in the second area has a second pretilt angle.
In this embodiment, the intermediate member is a mask plate 200, which has a plurality of light-transmitting regions 210 and a plurality of shielding regions 211. The ultraviolet light source is a plurality of point light sources, and the ultraviolet light source irradiates the liquid crystal layer 100 through the light-transmitting area 210 of the mask plate 200. The liquid crystal layer 100 includes a plurality of liquid crystals 130 and liquid crystal reaction monomers, and the surfaces of the first alignment film 30 and the second alignment film 40 have liquid crystal alignment polymers. After being irradiated by ultraviolet light, the liquid crystal 130 is guided to be aligned, and the liquid crystal 130 is aligned, so that the liquid crystal 130 has at least one pretilt angle, and reference is made to fig. 2-3.
In the process of transmitting ultraviolet light through the light-transmitting areas 210, the light entering the light-transmitting areas 210 includes light entering from various angles, and the ultraviolet light is transmitted through one light-transmitting area 210 in a trapezoid shape, referring to fig. 2-3.
In the liquid crystal layer 100, the area irradiated by the ultraviolet light passing through the light-transmitting area 210 is the first area 110, and the rest is the second area 120, wherein the ultraviolet light received by the second area 120 is acted by the light reflected by the other liquid crystals 130, and obviously, the intensity of the ultraviolet light received by the liquid crystals 130 of the second area 120 is lower, so that the intensity of the ultraviolet light received by the first area 110 is greater than the intensity of the ultraviolet light received by the second area 120, and refer to fig. 2-3.
Therefore, in the finally manufactured liquid crystal display panel, the pretilt angle of the liquid crystal 130 of the second region 120 is smaller than that of the liquid crystal 130 of the first region 110. In addition, each light-transmitting region 210 of the mask plate 200 is disposed corresponding to a sub-pixel, so as to ensure that light can enter the pixel, and the pixel emits light, see fig. 2-3.
S4) removing the middleware.
Specifically, after ultraviolet light irradiates for a preset period of time, stopping ultraviolet light irradiation, and removing the middleware; after the ultraviolet light irradiates for a preset period of time, the manufacture of the pretilt angle is completed, the irradiation is stopped at the moment, and the middleware is removed.
The embodiment provides a method for manufacturing a liquid crystal display panel, wherein the liquid crystal display panel simultaneously has liquid crystal with larger pretilt angle in a first area and liquid crystal with smaller pretilt angle in a second area, so that the problems of low response speed and dark state visual angle can be solved simultaneously.
Example 2
The present embodiment provides a liquid crystal display panel, which includes most of the technical solutions of embodiment 1, and is different in that the intermediate member is a lens group plate.
Specifically, as shown in fig. 6, the intermediate member is a lens assembly plate 300, that is, a plate body is provided with a plurality of lenses 310, a gap 311 is formed between two adjacent lenses 310, after ultraviolet light passes through the lenses 310, light is collected or diverged due to refraction action of the lenses 310, if light passes through the lenses 310 and is collected, illumination intensity of the part of light is improved; if the light is diverged after passing through the lens 310, the illumination intensity of the part of the light is reduced. The lens group plate 300 can adjust the irradiation intensity of the light so that each liquid crystal 130 in the liquid crystal display panel exhibits a different pretilt angle.
In the liquid crystal layer 100, the area irradiated by the ultraviolet light through the lens 310 is a first area 110, and the rest is a second area 120, and the intensity of the ultraviolet light irradiated by the first area 110 is greater than that of the ultraviolet light irradiated by the second area 120. The lens 310 of the lens 310 main plate may be a convex lens 310 or a combination of a convex lens 310 and a concave lens 310, and if the lens 310 of the lens group plate 300 is a combination of a convex lens 310 and a concave lens 310, the convex lens and the concave lens 310 are laminated. Whether the lens is a convex lens or a combination of a convex lens and a concave lens, the lens is arranged to collect light.
It is further noted that each lens 310 in the lens group plate 300 is respectively staggered from each pixel of the liquid crystal display panel. The transparent group plate is arranged in a fully transparent manner, so that at least one lens 310 in the lens group plate 300 is arranged in a staggered manner with respect to the sub-pixels, that is, each lens 310 does not need to be aligned with each sub-pixel, and light can normally enter each pixel.
In the process of adjusting the pretilt angle of the liquid crystal layer 100, the intensity of the ultraviolet light irradiation received by the first region 110 is greater than or equal to 0.26mw/cm 2 The second region 120 receives ultraviolet light having an illumination intensity of less than 0.26mw/cm 2 To achieve a specified pretilt angle.
The embodiment of the application provides a liquid crystal display panel and a preparation method thereof, wherein the liquid crystal display panel is provided with liquid crystal with larger pretilt angle in a first area and liquid crystal with smaller pretilt angle in a second area, so that the problems of low response speed and dark state visual angle can be solved simultaneously.
In the foregoing embodiments, the descriptions of the embodiments are emphasized, and for parts of one embodiment that are not described in detail, reference may be made to related descriptions of other embodiments.
The above describes in detail a liquid crystal display panel and a preparation method thereof provided in the embodiments of the present application, and specific examples are applied to describe the principles and embodiments of the present application, and the description of the above examples is only for helping to understand the technical solution and core ideas of the present application; those of ordinary skill in the art will appreciate that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.
Claims (3)
1. A liquid crystal display panel, comprising:
a first substrate;
a second substrate disposed opposite to the first substrate; and
a liquid crystal layer arranged between the first substrate and the second substrate;
wherein a first alignment film is formed on the surface of the first substrate, a second alignment film is formed on the surface of the second substrate, and the liquid crystal layer is positioned between the first alignment film and the second alignment film;
the liquid crystal layer comprises a plurality of liquid crystals, and each liquid crystal has a pretilt angle;
the liquid crystal layer at least comprises a first area and a second area, wherein the liquid crystal in the first area has a first pretilt angle, and the liquid crystal in the second area has a second pretilt angle;
the second pretilt angle is smaller than the first pretilt angle, and the first area accounts for 10% -20% of the area of the liquid crystal layer;
the first pretilt angle is 2.5 degrees, and the second pretilt angle is 0.6 degrees, so that the response speed is improved and the dark state view angle of the surface of the whole liquid crystal display panel is improved;
the first region and the second region are formed by irradiating ultraviolet light of at least two different intensities to the liquid crystal layer through an intermediate member;
the ultraviolet light irradiation intensity received by the first area is larger than or equal to 0.26mw/cm < 2 >, and the ultraviolet light irradiation intensity received by the second area is smaller than 0.26mw/cm < 2 >;
the middle piece is a lens group plate, a plurality of lenses are arranged on the lens group plate, gaps are formed between two adjacent lenses, and each lens is used for collecting or dispersing light rays; on the liquid crystal layer, the area irradiated by ultraviolet light through the lens is a first area, the rest is a second area, and the ultraviolet light irradiation intensity received by the first area is larger than that received by the second area;
the first substrate and the second substrate comprise a plurality of pixel units which are opposite to each other, each pixel unit comprises a plurality of sub-pixels with different colors, and at least one lens in the lens group plate is staggered with the sub-pixels respectively.
2. A method for manufacturing a liquid crystal display panel for adjusting a pretilt angle of liquid crystal, comprising the steps of:
sealing a liquid crystal layer between a first substrate and a second substrate which are oppositely arranged, wherein the liquid crystal layer comprises a plurality of liquid crystals, a first alignment film is formed on the surface of the first substrate, a second alignment film is formed on the surface of the second substrate, and the liquid crystal layer is positioned between the first alignment film and the second alignment film;
setting a middle piece on the upper surface of the second substrate;
irradiating the liquid crystal layer through the intermediate piece by adopting at least two ultraviolet lights with different intensities, wherein the ultraviolet lights are irradiated to the liquid crystal layer through the intermediate piece, so that the liquid crystal layer at least comprises a first area and a second area, wherein the liquid crystal positioned in the first area has a first pretilt angle, and the liquid crystal positioned in the second area has a second pretilt angle; and
removing the middleware;
wherein the ultraviolet light irradiation intensity received by the first area is greater than or equal to 0.26mw/cm2, and the ultraviolet light irradiation intensity received by the second area is less than 0.26mw/cm2;
the second pretilt angle is smaller than the first pretilt angle, the first area accounts for 10-20% of the area of the liquid crystal layer, the first pretilt angle is 2.5 degrees, and the second pretilt angle is 0.6 degrees, so that the response speed is improved and the dark state view angle of the surface of the whole liquid crystal display panel is improved at the same time;
the middle piece is a lens group plate, a plurality of lenses are arranged on the lens group plate, gaps are formed between two adjacent lenses, and each lens is used for collecting or dispersing light rays; on the liquid crystal layer, the area irradiated by ultraviolet light through the lens is a first area, the rest is a second area, and the ultraviolet light irradiation intensity received by the first area is larger than that received by the second area;
the first substrate and the second substrate comprise a plurality of pixel units which are opposite to each other, each pixel unit comprises a plurality of sub-pixels with different colors, and at least one lens in the lens group plate is staggered with the sub-pixels respectively.
3. The method of claim 2, wherein,
the lenses in the lens group plate are convex lenses or a combination of convex lenses and concave lenses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111009951.1A CN113671757B (en) | 2021-08-31 | 2021-08-31 | Liquid crystal display panel and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111009951.1A CN113671757B (en) | 2021-08-31 | 2021-08-31 | Liquid crystal display panel and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113671757A CN113671757A (en) | 2021-11-19 |
| CN113671757B true CN113671757B (en) | 2024-02-02 |
Family
ID=78547544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111009951.1A Active CN113671757B (en) | 2021-08-31 | 2021-08-31 | Liquid crystal display panel and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113671757B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5623354A (en) * | 1994-02-10 | 1997-04-22 | International Business Machines Corporation | Liquid crystal display with multi-domains |
| JP2011034062A (en) * | 2009-07-06 | 2011-02-17 | Citizen Holdings Co Ltd | Liquid crystal optical element |
| CN102221758A (en) * | 2011-07-18 | 2011-10-19 | 南京中电熊猫液晶显示科技有限公司 | Alignment method for hybrid vertical photoalignment liquid crystal display device |
| WO2013054773A1 (en) * | 2011-10-11 | 2013-04-18 | シャープ株式会社 | Liquid crystal display panel and manufacturing method thereof |
| WO2014196495A1 (en) * | 2013-06-07 | 2014-12-11 | シャープ株式会社 | Manufacturing method for liquid crystal display device |
| CN104714338A (en) * | 2013-12-16 | 2015-06-17 | 群创光电股份有限公司 | Liquid crystal display panel |
| CN106773335A (en) * | 2016-12-30 | 2017-05-31 | 深圳市华星光电技术有限公司 | A kind of liquid crystal display panel |
| CN107490903A (en) * | 2017-09-04 | 2017-12-19 | 深圳市华星光电技术有限公司 | A kind of display panel and preparation method thereof, liquid crystal display |
| CN111290176A (en) * | 2020-03-31 | 2020-06-16 | Tcl华星光电技术有限公司 | Liquid crystal display panel and method for manufacturing the same |
| CN213659149U (en) * | 2021-06-04 | 2021-07-09 | 苏州华星光电技术有限公司 | Liquid crystal display panel and display device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20160082815A (en) * | 2014-12-29 | 2016-07-11 | 삼성디스플레이 주식회사 | Light modulatoin device |
-
2021
- 2021-08-31 CN CN202111009951.1A patent/CN113671757B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5623354A (en) * | 1994-02-10 | 1997-04-22 | International Business Machines Corporation | Liquid crystal display with multi-domains |
| JP2011034062A (en) * | 2009-07-06 | 2011-02-17 | Citizen Holdings Co Ltd | Liquid crystal optical element |
| CN102221758A (en) * | 2011-07-18 | 2011-10-19 | 南京中电熊猫液晶显示科技有限公司 | Alignment method for hybrid vertical photoalignment liquid crystal display device |
| WO2013054773A1 (en) * | 2011-10-11 | 2013-04-18 | シャープ株式会社 | Liquid crystal display panel and manufacturing method thereof |
| WO2014196495A1 (en) * | 2013-06-07 | 2014-12-11 | シャープ株式会社 | Manufacturing method for liquid crystal display device |
| CN104714338A (en) * | 2013-12-16 | 2015-06-17 | 群创光电股份有限公司 | Liquid crystal display panel |
| CN106773335A (en) * | 2016-12-30 | 2017-05-31 | 深圳市华星光电技术有限公司 | A kind of liquid crystal display panel |
| CN107490903A (en) * | 2017-09-04 | 2017-12-19 | 深圳市华星光电技术有限公司 | A kind of display panel and preparation method thereof, liquid crystal display |
| CN111290176A (en) * | 2020-03-31 | 2020-06-16 | Tcl华星光电技术有限公司 | Liquid crystal display panel and method for manufacturing the same |
| CN213659149U (en) * | 2021-06-04 | 2021-07-09 | 苏州华星光电技术有限公司 | Liquid crystal display panel and display device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113671757A (en) | 2021-11-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5711038B2 (en) | Liquid crystal display panel in which unit pixels having a plurality of domains are formed, and optical mask for manufacturing the same | |
| WO2013086896A1 (en) | Liquid-lens dimming device and liquid crystal display | |
| KR100870844B1 (en) | Display unit including an antidazzling film | |
| US9195110B2 (en) | Liquid crystal display device and process for producing the same | |
| US10962823B2 (en) | Display module and display device | |
| KR20140052819A (en) | Liquid crystal display device having backlight unit to be able to control viewing angle | |
| US10831057B2 (en) | Color filter substrate, display panel and manufacturing method thereof, and display device | |
| CN102713742A (en) | Display device and light source device | |
| KR20130080761A (en) | Display device | |
| US9720287B2 (en) | Liquid crystal display device | |
| KR20170106567A (en) | Optical film and liquid crystal display comprising the same | |
| KR100662788B1 (en) | High brightness liquid crystal display device | |
| WO2017128779A1 (en) | Display substrate and manufacturing method therefor, and display device | |
| CN113671757B (en) | Liquid crystal display panel and manufacturing method thereof | |
| US7471346B2 (en) | Transflective liquid crystal display panel, 2D/3D switching type liquid crystal display panel, and 2D/3D switching type liquid crystal display | |
| JP3568662B2 (en) | LCD panel | |
| CN109270743B (en) | Mask plate for photo-alignment and mask set for photo-alignment | |
| JP2007240903A (en) | Optical control element and display device | |
| JP2006154577A (en) | Liquid crystal display device | |
| CN220691221U (en) | Display device | |
| US20240210721A1 (en) | Active retarder for 3d image display and display device | |
| CN208705609U (en) | Light shield and exposure system | |
| US12025816B2 (en) | Viewing angle diffuser film and display panel | |
| US20240176192A1 (en) | Liquid crystal display device | |
| CN212060825U (en) | Liquid crystal display panel and liquid crystal display |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |