阅读说明：本技术 液晶显示面板及其制备方法、显示屏 (Liquid crystal display panel, preparation method thereof and display screen ) 是由 蔡佳君 陈静 于 2021-09-29 设计创作，主要内容包括：本发明涉及一种液晶显示面板及其制备方法、显示屏。该液晶显示面板包括第一配向层、液晶层及第二配向层,液晶层具有多个像素区域,每一像素区域具有第一子区域和与第一子区域相邻接的第二子区域；其中,第一子区域内的液晶分子的扭曲角度与第二子区域内的液晶分子的扭曲角度不同。如此,将第一子区域和第二子区域的其中一者范围内的液晶分子的扭曲角度加大,例如加大第一子区域内的液晶分子的扭曲角度,一方面降低了对CR的影响；另一方面,在液晶层被驱动时,扭曲角度较大的液晶分子比扭曲角度较小的液晶分子的转动速度快,并且由于范德华力的存在,扭曲角度较大的液晶分子可以带动扭曲角度较小的液晶分子快速转动,从而大大降低了Ton值。(The invention relates to a liquid crystal display panel, a preparation method thereof and a display screen. The liquid crystal display panel comprises a first alignment layer, a liquid crystal layer and a second alignment layer, wherein the liquid crystal layer is provided with a plurality of pixel regions, and each pixel region is provided with a first sub-region and a second sub-region adjacent to the first sub-region; wherein the twist angle of the liquid crystal molecules in the first sub-region is different from the twist angle of the liquid crystal molecules in the second sub-region. In this way, the twist angle of the liquid crystal molecules in one of the first sub-region and the second sub-region is increased, for example, the twist angle of the liquid crystal molecules in the first sub-region is increased, so that the influence on the CR is reduced; on the other hand, when the liquid crystal layer is driven, the liquid crystal molecules with larger twist angle have higher rotation speed than the liquid crystal molecules with smaller twist angle, and due to the van der waals force, the liquid crystal molecules with larger twist angle can drive the liquid crystal molecules with smaller twist angle to rotate quickly, thereby greatly reducing the Ton value.)

1. The liquid crystal display panel is characterized by comprising a first alignment layer (10), a liquid crystal layer (20) and a second alignment layer (30) which are sequentially stacked, wherein the liquid crystal layer (20) is provided with a plurality of pixel regions (21), and each pixel region (21) is provided with a first sub-region (22) and a second sub-region (23) adjacent to the first sub-region (22);

wherein the twist angle of the liquid crystal molecules (24) within the first sub-region (22) is different from the twist angle of the liquid crystal molecules (24) within the second sub-region (23).

2. The lcd panel of claim 1, wherein each pixel region (21) has at least one first sub-region (22) and at least two second sub-regions (23), each first sub-region (22) is located between two second sub-regions (23), and the twist angle of the liquid crystal molecules (24) in each first sub-region (22) is larger than the twist angle of the liquid crystal molecules (24) in each second sub-region (23).

3. The lcd panel of claim 2, wherein the first alignment layer (10) and the second alignment layer (30) each have a plurality of first alignment regions with the same alignment direction and a plurality of second alignment regions with the same alignment direction, and each of the first alignment regions has a different alignment direction from each of the second alignment regions;

wherein each first alignment region is opposite to each first sub-region (22), and each second alignment region is opposite to each second sub-region (23).

4. The lcd panel of claim 1, wherein the lc layer (20) is doped with a phototaxis material that forms a polymer (60) linked between the lc molecules (24) and the first alignment layer (10) or the second alignment layer (30) under a specific light irradiation, the polymer (60) being used to control a twist angle of the lc molecules (24).

5. A method for manufacturing a liquid crystal display panel is characterized by comprising the following steps:

providing a first alignment layer (10) and a second alignment layer (30); wherein the first alignment layer (10) and the second alignment layer (30) each have a plurality of first alignment regions and a plurality of second alignment regions;

-illuminating the first alignment layer (10) and the second alignment layer (30) with alignment light, respectively; the alignment light irradiated on the first alignment region has a first polarization angle, the alignment light irradiated on the second alignment region has a second polarization angle, and the first polarization angle and the second polarization angle are different;

the first alignment layer (10), the liquid crystal layer (20) and the second alignment layer (30) are sequentially arranged in a laminated manner; wherein the liquid crystal layer (20) has a plurality of pixel regions (21), each pixel region (21) has a first sub-region (22) and a second sub-region (23) adjacent to the first sub-region (22), each first sub-region (22) is opposite to each first alignment region, and each second sub-region (23) is opposite to each second alignment region, so that the twist angles of the liquid crystal molecules (24) in the first sub-region (22) and the liquid crystal molecules (24) in the second sub-region (23) are different.

6. The method of manufacturing a liquid crystal display panel according to claim 5, wherein the step of irradiating the first alignment layer (10) and the second alignment layer (30) with polarized light, respectively, specifically comprises:

mask plates (200) are arranged on the alignment light incidence sides of the first alignment layer (10) and the second alignment layer (30); the mask plate (200) is provided with first light-transmitting areas opposite to the first alignment areas and second light-transmitting areas opposite to the second alignment areas, alignment light penetrating through the first light-transmitting areas has the first polarization angle, and alignment light penetrating through the second light-transmitting areas has the second polarization angle.

7. The method of claim 5, wherein the step of providing the first alignment layer (10) and the second alignment layer (30) comprises:

the first alignment layer (10) is formed on a first substrate (40) and the second alignment layer (30) is formed on a second substrate (50).

8. A method for manufacturing a liquid crystal display panel is characterized by comprising the following steps:

providing an assembly (1); the liquid crystal display panel assembly (1) comprises a first alignment layer (10), a liquid crystal layer (20) and a second alignment layer (30) which are sequentially stacked, wherein the liquid crystal layer (20) is provided with a plurality of pixel regions (21), each pixel region (21) is provided with a first sub-region (22) and a second sub-region (23) adjacent to the first sub-region (22), and the liquid crystal layer (20) is doped with a phototaxis material; -said first alignment layer (10) and said second alignment layer (30) each have a first alignment region opposite each of said first sub-regions (22) and a second alignment region opposite each of said second sub-regions (23);

the first alignment layer (10) and the second alignment layer (30) are irradiated with alignment light for a different time than the second alignment region.

9. The method of claim 7, wherein the step of providing a combination (1) comprises:

-molding said first alignment layer (10) on a first substrate (40), and said second alignment layer (30) on a second substrate (50);

butting a side of the first substrate (40) having the first alignment layer (10) and a side of the second substrate (50) having the second alignment layer (30), and forming the liquid crystal layer (20) between the first alignment layer (10) and the second alignment layer (30).

10. A display screen comprising the liquid crystal display panel according to any one of claims 1 to 4.

Technical Field

The invention relates to the technical field of display, in particular to a liquid crystal display panel, a preparation method thereof and a display screen.

Background

A Liquid Crystal Display (LCD), which belongs to a flat panel Display. The liquid crystal display screen has the advantages of low power consumption, small volume, low radiation and the like, and is widely applied to screen display of televisions, computers and the like. The liquid crystal display screen uses liquid crystal solution in two pieces of polarization materials, and liquid crystal can be rearranged to achieve the purpose of imaging when current passes through the liquid crystal solution.

As people have higher requirements on the display screen, the requirements on the contrast and the response speed of the display screen are higher. However, the contrast of the display screen in the prior art is improved, which results in the reduction of the response speed of the display screen; meanwhile, the increase of the response speed of the display screen may result in the decrease of the contrast of the display screen. That is, the contrast ratio cannot be increased and the response speed cannot be increased at the same time, and both cannot be satisfied.

Disclosure of Invention

Therefore, it is necessary to provide a liquid crystal display panel, a method for manufacturing the same, and a display screen, which improve the above-mentioned defects, in order to solve the problem that the display screen in the prior art cannot have a high contrast ratio and a high response speed.

A liquid crystal display panel comprises a first alignment layer, a liquid crystal layer and a second alignment layer which are sequentially stacked, wherein the liquid crystal layer is provided with a plurality of pixel regions, and each pixel region is provided with a first sub-region and a second sub-region adjacent to the first sub-region;

wherein a twist angle of the liquid crystal molecules in the first sub-region is different from a twist angle of the liquid crystal molecules in the second sub-region.

In one embodiment, each of the pixel regions has at least one of the first sub-regions and at least two of the second sub-regions, each of the first sub-regions is located between two of the second sub-regions, and a twist angle of liquid crystal molecules in each of the first sub-regions is greater than a twist angle of liquid crystal molecules in each of the second sub-regions.

In one embodiment, the first alignment layer and the second alignment layer each have a plurality of first alignment regions with the same alignment direction and a plurality of second alignment regions with the same alignment direction, and each of the first alignment regions and each of the second alignment regions have different alignment directions;

each first alignment region is opposite to each first sub-region, and each second alignment region is opposite to each second sub-region.

In one embodiment, the liquid crystal layer is doped with a phototaxis material, and the phototaxis material forms a polymer linked between the liquid crystal molecules and the first alignment layer or the second alignment layer under the irradiation of specific light, and the polymer is used for controlling the twist angle of the liquid crystal molecules.

A method for preparing a liquid crystal display panel comprises the following steps:

providing a first alignment layer and a second alignment layer; wherein the first alignment layer and the second alignment layer each have a plurality of first alignment regions and a plurality of second alignment regions;

irradiating the first alignment layer and the second alignment layer with alignment light, respectively; the alignment light irradiated on the first alignment region has a first polarization angle, the alignment light irradiated on the second alignment region has a second polarization angle, and the first polarization angle and the second polarization angle are different;

the first alignment layer, the liquid crystal layer and the second alignment layer are sequentially arranged in a laminated mode; the liquid crystal layer is provided with a plurality of pixel areas, each pixel area is provided with a first sub area and a second sub area adjacent to the first sub area, each first sub area is opposite to each first alignment area, each second sub area is opposite to each second alignment area, and the twist angles of liquid crystal molecules in the first sub area and the twist angles of liquid crystal molecules in the second sub area are different.

In one embodiment, the step of irradiating the first alignment layer and the second alignment layer with polarized light specifically comprises:

respectively arranging mask plates on alignment light incidence sides of the first alignment layer and the second alignment layer; the mask plate is provided with a first light-transmitting area opposite to each first alignment area and a second light-transmitting area opposite to each second alignment area, alignment light penetrating through the first light-transmitting areas has the first polarization angle, and alignment light penetrating through the second light-transmitting areas has the second polarization angle.

In one embodiment, the step of providing the first alignment layer and the second alignment layer specifically comprises:

the first alignment layer is formed on a first substrate, and the second alignment layer is formed on a second substrate.

A method for preparing a liquid crystal display panel comprises the following steps:

providing an assembly; the liquid crystal layer is provided with a plurality of pixel regions, each pixel region is provided with a first sub-region and a second sub-region adjacent to the first sub-region, and the liquid crystal layer is doped with a phototaxis material; the first alignment layer and the second alignment layer each have a first alignment region opposing each of the first sub-regions, and a second alignment region opposing each of the second sub-regions;

the first alignment layer and the second alignment layer are irradiated with alignment light, and a time for irradiating the first alignment region is different from a time for irradiating the second alignment region.

In one embodiment, the step of providing a combination specifically includes:

forming the first alignment layer on a first substrate and the second alignment layer on a second substrate;

butting one side of the first substrate having the first alignment layer and one side of the second substrate having the second alignment layer, and forming the liquid crystal layer between the first alignment layer and the second alignment layer.

A display screen comprising a liquid crystal display panel as described in any of the embodiments above.

According to the liquid crystal display panel, the preparation method thereof and the display screen, each pixel area is divided into the first sub-area and the second sub-area, and the twist angle of the liquid crystal molecules in one range of the first sub-area and the second sub-area is increased, for example, the twist angle of the liquid crystal molecules in the range of the first sub-area is increased, so that the influence on CR is reduced; on the other hand, when the liquid crystal layer is driven, the liquid crystal molecules with a larger twist angle have a faster rotation speed than the liquid crystal molecules with a smaller twist angle, and due to the van der waals force, the liquid crystal molecules with a larger twist angle in the first sub-region can drive the liquid crystal molecules with a smaller twist angle in the second sub-region to rotate rapidly in each pixel region, thereby greatly reducing the Ton value (i.e., increasing the reaction speed).

Drawings

FIG. 1 is a schematic view of a liquid crystal display panel according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a pixel area of a liquid crystal layer of an LCD panel according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of a pixel area of a liquid crystal layer of a liquid crystal display panel according to another embodiment of the present invention;

FIG. 4 is a diagram illustrating a pixel area of a liquid crystal layer of an LCD panel according to yet another embodiment of the present invention;

FIG. 5 is a schematic view illustrating photo-alignment of a first alignment layer according to an embodiment of the present invention;

FIG. 6 is a schematic view illustrating photo-alignment of a second alignment layer according to an embodiment of the present invention;

FIG. 7 is a flowchart illustrating steps of a method for fabricating a liquid crystal display panel according to an embodiment of the present invention;

FIG. 8 is a schematic view illustrating photo-alignment of a first alignment layer and a second alignment layer according to an embodiment of the present invention;

FIG. 9 is a schematic illustration of polymers formed in the liquid crystal layer after photoalignment as shown in FIG. 8;

FIG. 10 is a flowchart illustrating a method for fabricating a liquid crystal display panel according to an embodiment of the present invention;

fig. 11 is a flowchart illustrating a step of S21 in the method for manufacturing the liquid crystal display panel shown in fig. 10.

1: assembly body

10: a first alignment layer

20: liquid crystal layer

21: pixel region

22: first sub-region

23: second sub-area

24: liquid crystal molecules

30: second alignment layer

40: first substrate

50: second substrate

60: polymer and method of making same

100: light source

200: mask plate

S11-S13: step (ii) of

S21-S22: step (ii) of

S211-S212: step (ii) of

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

It should be noted that, as the requirements of people for display screens are higher, the requirements for Contrast Ratio (CR) and Response speed (RT) of the display screens are also higher. Wherein, CR is the ratio of white picture brightness to black picture brightness, and the larger CR value indicates the better performance of the display screen. In order to increase CR, either white luminance or black luminance, which is associated with the twist angle of the liquid crystal molecules, is increased, and the twist angle of the liquid crystal molecules is increased when the absorption axis angle of the polarizer is constant, the black light leakage is increased, resulting in a decrease in CR. RT consists of two parts, Ton (the time for 10% brightness to switch to 90% brightness) and Toff (the time for 90% brightness to switch to 10% brightness). For Ton, the smaller the Ton value, the faster the reaction speed, indicating better display performance. When the twist angle of the liquid crystal molecules is larger, the threshold voltage required for the liquid crystal molecules is smaller. As can be seen from the following equation (1), the smaller the threshold voltage, the larger Ton.

Wherein, γ₁Represents the liquid crystal viscosity coefficient; d represents a liquid crystal layer 20 gap (cell gap); ε 0 represents the dielectric constant in vacuum; delta epsilon represents the difference between the horizontal and vertical dielectric coefficients of the liquid crystal; v represents a driving voltage; v_thTo representA threshold voltage.

In summary, the larger the twist angle of the liquid crystal molecules, the better CR but the slower Ton. The smaller the twist angle of the liquid crystal molecules, the faster Ton but the worse CR. That is, when Ton is increased, CR is lost, and when CR is increased, Ton is lost, and both are not compatible, which is an important difficulty in improving the performance of the liquid crystal display panel. Therefore, it is necessary to provide a liquid crystal display panel having a high response speed and a small influence on contrast.

Referring to fig. 1 and fig. 2, a liquid crystal display panel according to an embodiment of the invention includes a first alignment layer 10, a liquid crystal layer 20, and a second alignment layer 30 stacked in sequence. The liquid crystal layer 20 has a plurality of pixel regions 21 (see fig. 2), and each pixel region 21 has a first sub-region 22 and a second sub-region 23 adjacent to the first sub-region 22. Here, the Twist angle (Twist angle) of the liquid crystal molecules 24 in the first sub-region 22 is different from the Twist angle (Twist angle) of the liquid crystal molecules 24 in the second sub-region 23.

In this way, each pixel region 21 is divided into the first sub-region 22 and the second sub-region 23, and the twist angle of the liquid crystal molecules 24 in only one of the first sub-region 22 and the second sub-region 23 is increased, for example, the twist angle of the liquid crystal molecules 24 in the first sub-region 22 is increased, so that the influence on CR is reduced; on the other hand, when the liquid crystal layer 20 is driven, the liquid crystal molecules 24 with a larger twist angle rotate faster than the liquid crystal molecules 24 with a smaller twist angle, and due to the van der waals force, in each pixel region 21, the liquid crystal molecules 24 with a larger twist angle in the first sub-region 22 can drive the liquid crystal molecules 24 with a smaller twist angle in the second sub-region 23 to rotate rapidly, thereby greatly reducing the Ton value (i.e., increasing the reaction speed).

Referring to fig. 2 to 4, in an embodiment, each pixel region 21 has at least one first sub-region 22 and at least two second sub-regions 23. Each first sub-area 22 is located between two second sub-areas 23, that is, each first sub-area 22 is adjacent to at least two second sub-areas 23. The twist angle of the liquid crystal molecules 24 in each first sub-region 22 is greater than the twist angle of the liquid crystal molecules 24 in each second sub-region 23. Thus, when the liquid crystal layer 20 is driven, in each pixel region 21, the liquid crystal molecules 24 with a larger twist angle in each first sub-region 22 can simultaneously drive the liquid crystal molecules 24 with a smaller twist angle in at least two second sub-regions 23 adjacent thereto to rapidly rotate, which is beneficial to further reducing the Ton value, i.e. increasing the reaction speed. Optionally, the twist angle of the liquid crystal molecules 24 in the first sub-region 22 is 0-15 degrees. The twist angle of the liquid crystal molecules 24 in the second sub-region 23 is 0-10 degrees.

Referring to fig. 2, each pixel region 21 preferably has a first sub-region 22 and two second sub-regions 23, the first sub-region 22 is located between the two second sub-regions 23, and the twist angle of the liquid crystal molecules 24 in the first sub-region 22 is greater than the twist angle of the liquid crystal molecules 24 in the two second sub-regions 23. In this way, when the liquid crystal layer 20 is driven, in each pixel region 21, the liquid crystal molecules 24 in the first sub-region 22 simultaneously rotate the liquid crystal molecules 24 in the two second sub-regions 23 at a high speed. In addition, one pixel region 21 is divided into only three sub-regions (i.e., one first sub-region 22 and two second sub-regions 23), which is beneficial to simplifying the manufacturing process and reducing the manufacturing difficulty.

Of course, in the embodiment shown in fig. 3, each pixel region 21 comprises only one first sub-region 22 and one second sub-region 23. In the embodiment shown in fig. 4, each pixel region 21 comprises two first sub-regions 22 and three second sub-regions 23.

In one embodiment, the first alignment layer 10 and the second alignment layer 30 each have a plurality of first alignment regions with the same alignment direction and a plurality of second alignment regions with the same alignment direction, and each of the first alignment regions has a different alignment direction from each of the second alignment regions. Each first alignment region is opposite to each first sub-region 22, and each second alignment region is opposite to each second sub-region 23. In this way, since the first alignment region has an alignment direction through the photo-alignment process, the liquid crystal molecules 24 in the first sub-region 22 opposite to the first alignment region are uniformly aligned in a direction (i.e. the liquid crystal molecules 24 in the first sub-region 22 have a twist angle) under the van der waals force between the liquid crystal molecules 24 and the alignment molecules in the first alignment region. Similarly, since the second alignment region has an alignment direction through the photo-alignment process, the liquid crystal molecules 24 in the second sub-region 23 opposite to the second alignment region are uniformly aligned in a direction (i.e. the liquid crystal molecules 24 in the second sub-region 23 have a twist angle) under the van der waals force between the liquid crystal molecules 24 and the alignment molecules in the second alignment region. Also, since the alignment directions of the first and second alignment regions are different, the twist angle of the liquid crystal molecules 24 in the first sub-region 22 is different from that of the liquid crystal molecules 24 in the second sub-region 23. That is, increasing the twist angle of the liquid crystal molecules 24 of the first or second sub-region 22 or 23 is achieved by controlling the alignment direction of the first and second alignment regions of the first and second alignment layers 10 and 30.

Referring to fig. 8 and 9, in another embodiment, the liquid crystal layer 20 is doped with a phototactic material, and the phototactic material forms a polymer 60 linked between the liquid crystal molecules 24 and the first alignment layer 10 or the second alignment layer 30 under the irradiation of alignment light, wherein the polymer 60 is used for controlling the twist of the liquid crystal molecules 24. In this way, the deflection angle of the liquid crystal molecules 24 in the first sub-region 22 can be made larger than the deflection angle of the liquid crystal molecules 24 in the second sub-region 23 by forming more of the polymer 60 in one of the first sub-region 22 and the second sub-region 23 and forming less of the polymer 60 in the other of the first sub-region 22 and the second sub-region 23.

Referring to fig. 5 to 7, based on the liquid crystal display panel, the present invention further provides a method for manufacturing a liquid crystal display panel according to any of the above embodiments, including:

s11, a first alignment layer 10 and a second alignment layer 30 are provided. The first alignment layer 10 and the second alignment layer 30 each have a plurality of first alignment regions and a plurality of second alignment regions.

S12, irradiating the first alignment layer 10 and the second alignment layer 30 with alignment light, respectively. The alignment light irradiated on the first alignment region has a first polarization angle, the alignment light irradiated on the second alignment region has a second polarization angle, and the first polarization angle is different from the second polarization angle, so that the alignment direction of the first alignment region is different from the alignment direction of the second alignment region.

S13, the first alignment layer 10, the liquid crystal layer 20, and the second alignment layer 30 are sequentially stacked. The liquid crystal layer 20 has a plurality of pixel regions 21, and each pixel region 21 has a first sub-region 22 and a second sub-region 23 adjacent to the first sub-region 22. Each first sub-region 22 is opposite to each first alignment region, and each second sub-region 23 is opposite to each second alignment region, and the twist angles of the liquid crystal molecules 24 in the first sub-region 22 and the liquid crystal molecules 24 in the second sub-region 23 are different because the alignment direction of the first alignment region is different from that of the second alignment region.

Thus, the first alignment region and the second alignment region of the alignment layers (i.e., the first alignment layer 10 and the second alignment layer 30) are respectively irradiated by the alignment lights with different polarization angles, so that the alignment molecules in the alignment layers are broken and combined to form different alignment directions (i.e., the directions of broken chains of the alignment layers are different). After the first alignment layer 10, the liquid crystal layer 20, and the second alignment layer 30 are assembled, the alignment molecules after the chain-breaking combination control the liquid crystal molecules 24 to twist by van der waals force, and the twist angle of the liquid crystal molecules 24 in the first sub-region 22 opposite to the first alignment region is different from the twist angle of the liquid crystal molecules 24 in the second sub-region 23 opposite to the second alignment region. That is, increasing the twist angle of the liquid crystal molecules 24 in one of the first and second sub-regions 22 and 23 is achieved by controlling the polarization angles of the two alignment lights irradiated on the first and second alignment regions, respectively.

Specifically, step S12 specifically includes:

mask plates 200 are disposed on alignment light incident sides of the first alignment layer 10 and the second alignment layer 30, respectively. The mask 200 has a first light-transmitting area opposite to each first alignment area and a second light-transmitting area opposite to each second alignment area, the alignment light passing through the first light-transmitting area has the first polarization angle, and the alignment light passing through the second light-transmitting area has the second polarization angle. Further, the length direction of the light transmission groove in the first light transmission region of the mask 200 intersects with the length direction of the light transmission groove in the second light transmission region, so that the polarization angles of the alignment light passing through the first light transmission region and the alignment light passing through the second light transmission region are different.

It is understood that the mask 200 is disposed between the light source 100 and the first alignment layer 10 or the second alignment layer 30.

Specifically, step S11 specifically includes: the first alignment layer 10 is formed on the first substrate 40, and the second alignment layer 30 is formed on the second substrate 50. Further, in step S13, the side of the first substrate 40 having the first alignment layer 10 and the side of the second substrate 50 having the second alignment layer 30 are butted, and the above-described liquid crystal layer 20 is formed between the first alignment layer 10 and the second alignment layer 30. The first substrate 40 may be a Color Filter (CF) substrate, and the second substrate 50 may be a TFT (Thin Film Transistor) substrate.

Referring to fig. 8 to 10, based on the liquid crystal display panel, the present invention further provides another method for manufacturing a liquid crystal display panel, including the steps of:

s21, providing a combination 1. The assembly 1 includes a first alignment layer 10, a liquid crystal layer 20, and a second alignment layer 30, which are sequentially stacked. The liquid crystal layer 20 has a plurality of pixel regions 21, each pixel region 21 has a first sub-region 22 and a second sub-region 23 adjacent to the first sub-region 22, and the liquid crystal layer 20 is doped with a phototaxis material. The first alignment layer 10 and the second alignment layer 30 each have a first alignment region opposite to each first sub-region 22, and a second alignment region opposite to each second sub-region 23.

S22, irradiating the first alignment layer 10 and the second alignment layer 30 with alignment light for a time different from that of the second alignment region.

Thus, by doping the liquid crystal layer 20 with a phototaxis material, the phototaxis material forms a polymer 60 linked between the liquid crystal molecules 24 and the first alignment layer 10 or the second alignment layer 30 under a specific light condition, and the polymer 60 serves to control the twist of the liquid crystal molecules 24. Due to the different time of irradiating the first alignment region and the second alignment region, the amounts of the generated polymer 60 in the first sub-region 22 corresponding to the first alignment region and the generated polymer 60 in the second sub-region 23 corresponding to the second alignment region are different, resulting in different twist angles of the liquid crystal molecules 24 in the first sub-region 22 and the liquid crystal molecules 24 in the second sub-region 23.

For example, when it is necessary to increase the twist angle of the liquid crystal molecules 24 within the first sub-region 22, the time for irradiating the alignment light to the first alignment region is lengthened, i.e., longer than the time for irradiating the second alignment region.

When it is necessary to increase the twist angle of the liquid crystal molecules 24 in the second sub-region 23, the time for irradiating the alignment light to the second alignment region is lengthened, i.e., longer than the time for irradiating the first alignment region.

Referring to fig. 8 and 11, specifically, step S21 includes:

s211, forming a first alignment layer 10 on the first substrate 40, and forming a second alignment layer 30 on the second substrate 50;

s212, the side of the first substrate 40 having the first alignment layer 10 and the side of the second substrate 50 having the second alignment layer 30 are butted, and the liquid crystal layer 20 is formed between the first alignment layer 10 and the second alignment layer 30.

Based on the above liquid crystal display panel, an embodiment of the present invention further provides a display screen, where the display screen includes the liquid crystal display panel described in any of the above embodiments. Specifically, the display screen may be a computer monitor, a television, or other devices with a display function, and is not limited herein.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.