WO2022048031A1

WO2022048031A1 - Liquid crystal display panel and preparation method therefor

Info

Publication number: WO2022048031A1
Application number: PCT/CN2020/130145
Authority: WO
Inventors: 张伟基
Original assignee: 深圳市华星光电半导体显示技术有限公司
Priority date: 2020-09-03
Filing date: 2020-11-19
Publication date: 2022-03-10
Also published as: CN112068359A

Abstract

A liquid crystal display panel (1) and a preparation method for same. Multiple retaining wall structures (105) each comprising an inner layer structure (1051) and an outer layer structure (1052) are provided between two substrates that are oppositely arranged; the inner layer structure (1051) is wrapped by the outer layer structure (1052), and is made of a light-transmitting material; and the outer layer structure (1052) uses a light-shielding layer. The present invention solves the preparation problem of the thick retaining wall structures (105), and color mixing interference between sub-pixels of different colors can be reduced by means of the prepared thick retaining wall structures (105).

Description

Liquid crystal display panel and preparation method thereof

technical field

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

Background technique

A transparent liquid crystal display device refers to a display device through which a user can see the displayed screen when a voltage is applied to the liquid crystal, and a user can see objects on the back of the liquid crystal through it when no voltage is applied to the liquid crystal. The appearance and perception indexes of transparent liquid crystal display devices include transmittance, contrast ratio and degree of color mixing. Existing transparent liquid crystal display devices usually use polymer-dispersed liquid crystal to improve transmittance and high cell thickness to improve contrast. However, after the transparent liquid crystal display device is provided with backlight, due to the dual factors of the scattering effect of the polymer dispersed liquid crystal and the high cell thickness, the color mixing between sub-pixels of different colors is serious, which affects the display effect.

technical problem

The present invention provides a liquid crystal display panel and a preparation method thereof, which are used to solve the technical problem of poor display effect caused by serious color mixing between sub-pixels of different colors in the existing transparent liquid crystal display device.

technical solutions

In a first aspect, the present invention provides a liquid crystal display panel, comprising a first substrate and a second substrate disposed opposite to each other, and a liquid crystal layer and a color resist layer disposed between the first substrate and the second substrate, so The color resist layer is disposed on the side of the first substrate facing the liquid crystal layer, the color resist layer includes a plurality of color photoresists arranged at intervals, and the liquid crystal display panel further includes a plurality of blocking wall structures, each of the The retaining wall structure includes an inner layer structure and an outer layer structure. The outer layer structure wraps the inner layer structure. A wall structure is arranged between two adjacent color photoresists, a plurality of the blocking wall structures divide the liquid crystal layer into a plurality of liquid crystal regions, and each of the liquid crystal regions corresponds to one of the color photoresist.

In some embodiments, the first substrate is a color filter substrate, and the second substrate is an array substrate; or, the first substrate is an array substrate, and the second substrate is a color filter substrate.

In some embodiments, two ends of each of the blocking wall structures are respectively attached to one side surface of the first substrate and the second substrate facing the liquid crystal layer.

In some embodiments, the cross-section of each of the retaining wall structures is an isosceles trapezoid.

In some embodiments, the long side of the retaining wall structure with an isosceles trapezoid cross-section is attached to the first substrate, and the short side of the retaining wall structure with an isosceles trapezoid cross-section is attached to the first substrate Or, the long side of the retaining wall structure with an isosceles trapezoid cross-section is attached to the second substrate, and the short side of the retaining wall structure with an isosceles trapezoid cross-section is attached to the second substrate on a substrate.

In some embodiments, the value range of the thickness of the inner layer structure is 3-30 μm, and the value range of the thickness of the outer layer structure is 0.1-3 μm.

In some embodiments, the inner layer structure and the outer layer structure are formed by the same photomask process.

In some embodiments, the light-transmitting material is polystyrene, and the light-shielding layer is any one or a combination of black matrix, metal and alloy.

In some embodiments, a black matrix is arranged between any two adjacent color photoresists.

In some embodiments, the liquid crystal is a polymer dispersed liquid crystal.

In a second aspect, the present invention provides a preparation method of a liquid crystal display panel, the preparation method comprising:

providing a first substrate with a color resist layer on one side, wherein the color resist layer includes a plurality of color photoresists arranged at intervals;

A second substrate is provided, and several retaining wall structures are formed on the first substrate or the second substrate, wherein each of the retaining wall structures includes an inner layer structure and an outer layer structure, and the outer layer structure wraps the an inner layer structure, the inner layer structure is made of a light-transmitting material, and the outer layer structure is a light-shielding layer;

The first substrate and the second substrate are aligned so that each of the blocking wall structures is located between two adjacent color photoresists, wherein after the alignment, a plurality of the blocking wall structures The space between the first substrate and the second substrate is divided into several sections;

Liquid crystal is injected into each of the sections to form a plurality of liquid crystal regions.

In some embodiments, the preparation method includes:

In some embodiments, the liquid crystal is a polymer dispersed liquid crystal.

beneficial effect

In the liquid crystal display panel provided by the present invention, a light-transmitting material is used to prepare a thick inner layer structure, and then a light-shielding material is used to prepare the light-shielding layer to wrap the inner layer structure to form a blocking wall structure. Therefore, the preparation method of the retaining wall structure is simple and easy to realize, which solves the preparation problem of the thick retaining wall structure, and the prepared thick retaining wall structure can reduce the color mixing between sub-pixels of different colors. interference and improve the display effect.

Description of drawings

FIG. 1 is a schematic structural diagram of a liquid crystal display panel according to Embodiment 1 of the present invention.

FIG. 2 is a schematic structural diagram of a liquid crystal display panel according to Embodiment 2 of the present invention.

FIG. 3 is a schematic structural diagram of a liquid crystal display panel according to Embodiment 3 of the present invention.

FIG. 4 is a schematic structural diagram of a liquid crystal display panel according to Embodiment 4 of the present invention.

FIG. 5 is a schematic structural diagram of a liquid crystal display panel according to Embodiment 5 of the present invention.

FIG. 6 is a schematic structural diagram of a liquid crystal display panel according to Embodiment 6 of the present invention.

FIG. 7 is a schematic structural diagram of a liquid crystal display panel according to Embodiment 7 of the present invention.

FIG. 8 is a schematic structural diagram of a liquid crystal display panel according to Embodiment 8 of the present invention.

FIG. 9 is a schematic structural diagram of a liquid crystal display panel according to Embodiment 9 of the present invention.

FIG. 10 is a schematic structural diagram of a liquid crystal display panel according to Embodiment 10 of the present invention.

FIG. 11 is a schematic structural diagram of a liquid crystal display panel according to Embodiment 11 of the present invention.

FIG. 12 is a schematic structural diagram of a liquid crystal display panel according to a twelfth embodiment of the present invention.

FIG. 13 is a flow chart of the manufacturing method of the liquid crystal display panel shown in FIG. 1 .

FIG. 14 is a process diagram corresponding to step S1 in FIG. 13 .

FIG. 15 is a process diagram corresponding to the first step of the specific steps in step S2 in FIG. 13 .

FIG. 16 is a process diagram corresponding to the second step of the specific steps in step S2 in FIG. 13 .

FIG. 17 is a process diagram corresponding to the third step of the specific steps in step S2 in FIG. 13 .

FIG. 18 is a process diagram corresponding to the fourth step of the specific steps in step S2 in FIG. 13 .

FIG. 19 is a process diagram corresponding to step S3 in FIG. 13 .

FIG. 20 is a process diagram corresponding to step S4 in FIG. 13 .

Embodiments of the present invention

In order to make the objectives, technical solutions and effects of the present invention clearer and clearer, the present invention will be described in further detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

In order to solve the technical problem of poor display effect caused by serious color mixing between sub-pixels of different colors in the existing transparent liquid crystal display device, embodiments of the present invention provide a method that can reduce the degree of color mixing between sub-pixels of different colors to improve the display. An effective liquid crystal display panel and a liquid crystal display device having the liquid crystal display panel. It should be noted that the liquid crystal display panel provided by the embodiment of the present invention is preferably a transparent liquid crystal display panel using polymer dispersed liquid crystal, and of course it can also be an ordinary non-transparent liquid crystal display panel.

Referring to FIG. 1 , a first embodiment of the present invention provides a liquid crystal display panel 1 , the liquid crystal display panel 1 includes a first substrate 101 and a second substrate 102 disposed opposite to each other, and a first substrate 101 and a second substrate 102 disposed on the first substrate 101 and the second substrate 102 Between the liquid crystal layer 103 and the color resist layer 104, the color resist layer 104 is disposed on the side of the first substrate 101 facing the liquid crystal layer 103, and the color resist layer 104 includes a plurality of color photoresists 1040 arranged at intervals. The liquid crystal display panel 1 further includes a plurality of retaining wall structures 105. Each retaining wall structure 105 includes an inner layer structure 1051 and an outer layer structure 1052. The outer layer structure 1052 wraps the inner layer structure 1051, and the inner layer structure 1051 is made of light-transmitting material. The outer layer structure 1052 adopts a light shielding layer. Each barrier wall structure 105 is disposed between two adjacent color photoresists 1040 , the plurality of barrier wall structures 105 divide the liquid crystal layer 103 into a plurality of liquid crystal regions 1030 , and each liquid crystal region 1030 corresponds to one color photoresist 1040 .

Understandably, due to the high cell thickness requirement of the transparent liquid crystal display panel 1, it is necessary to prepare a thicker barrier wall structure 105 (the thickness is usually greater than 10 μm). It is difficult to realize, so in this embodiment, a thicker inner layer structure 1051 is first prepared by using a light-transmitting material, and then a light-shielding material is used to prepare a light-shielding layer to wrap the inner layer structure 1051 to form the blocking wall structure 105 . Since the light-transmitting material is more likely to achieve thicker structural requirements in processes such as exposure and development, the method for preparing the retaining wall structure 105 in this embodiment is simple and easy to implement, and solves the difficulty in preparing the thicker retaining wall structure 105 .

It should be noted that the first substrate 101 is a color filter substrate (CF Glass), and the second substrate 102 is an array substrate (TFT Glass); or, the first substrate 101 is an array substrate, and the second substrate 102 is a color filter substrate. In this embodiment, as shown in FIG. 1 , the first substrate 101 is a color filter substrate, and the second substrate 102 is an array substrate.

The liquid crystal in the liquid crystal layer 103 is preferably polymer dispersed liquid crystal, and the color blocking layer 104 is disposed on the side of the first substrate 101 facing the liquid crystal layer 103 . In this embodiment, as shown in FIG. 1 , the color resist layer 104 is disposed on the side of the color filter substrate facing the liquid crystal layer 103 .

FIG. 1 shows part of the color photoresist 1040 included in the color resist layer 104 (four color photoresists 1040 arranged at intervals), in this embodiment, the four color photoresists 1040 are respectively red light from left to right photoresist (rectangle filled with diagonal lines sloping to the left), blue photoresist (rectangle filled with dots), green photoresist (rectangle filled with diagonal lines sloping right), and red photoresist. It can be understood that, in other embodiments, the arrangement of the color photoresist 1040 may also have other manners.

Each barrier wall structure 105 is disposed between two adjacent color photoresists 1040 , the plurality of barrier wall structures 105 divide the liquid crystal layer 103 into a plurality of liquid crystal regions 1030 , and each liquid crystal region 1030 corresponds to a color photoresist 1040 , each The color photoresist 1040 and the corresponding liquid crystal region 1030 and other corresponding structures together define a sub-pixel 10 . When the liquid crystal display panel 1 is provided with a backlight, after the light is scattered by the polymer dispersed liquid crystal, most of the light emitted from any sub-pixel 10 to the other sub-pixels 10 will be destroyed by the sub-pixel 10 and the sub-pixels 10. The blocking wall structures 105 between the adjacent sub-pixels 10 of the pixels 10 are blocked, thereby reducing the color mixing interference between the sub-pixels 10 of different colors, and improving the display effect.

FIG. 1 shows part of the barrier wall structures 105 (three barrier wall structures 105 ) of the liquid crystal display panel 1 . In this embodiment, the three blocking wall structures 105 are respectively disposed between the red photoresist and the blue photoresist, between the blue photoresist and the green photoresist, and between the green photoresist and the red photoresist from left to right, The above-mentioned three blocking wall structures 105 divide the liquid crystal layer 103 into four liquid crystal regions 1030 , and each liquid crystal region 1030 corresponds to a color photoresist 1040 .

One of the two ends of each retaining wall structure 105 is attached to the first substrate 101 or the second substrate 102 . If one end is attached to the first substrate 101, the other end can be close to but not attached to the second substrate 102, or attached to the second substrate 102; if one end is attached to the second substrate 102, Then the other end may be close to but not attached to the first substrate 101 , or may be attached to the first substrate 101 . In this embodiment, as shown in FIG. 1 , one end of each retaining wall structure 105 is attached to the array substrate, and the other end is close to the color filter substrate but not attached to the color filter substrate. Preferably, the cross section of each retaining wall structure 105 is an isosceles trapezoid, the long side of the isosceles trapezoid is attached to the array substrate, and the short side of the isosceles trapezoid is close to the color filter substrate but not attached to the color filter substrate. It can be understood that, in other embodiments, the cross section of the retaining wall structure 105 may also adopt other shapes, such as a rectangle.

In this embodiment, the value range of the thickness of the inner layer structure 1051 is 3-30 μm, and the value range of the thickness of the outer layer structure 1052 is 0.1-3 μm.

Preferably, the inner layer structure 1051 and the outer layer structure 1052 are formed by the same photomask process.

It is understandable that the inner layer structure 1051 and the outer layer structure 1052 in the retaining wall structure 105 are prepared by the same photomask manufacturing process. After the inner layer structure 1051 is prepared, there is no need to open a new mask to prepare the outer layer structure 1052, thus reducing the photomask. The manufacturing cost is reduced, thereby reducing the manufacturing cost of the liquid crystal display panel 1 and reducing the production capacity loss during line change during the manufacturing process. In this embodiment, the light-transmitting material for preparing the inner layer structure 1051 is polystyrene, and the outer layer structure 1052, that is, the light shielding layer, is any one or a combination of black matrix, metal and alloy. It will be appreciated that in other embodiments, other qualifying materials may also be used.

Referring to FIG. 2 , the structure of the liquid crystal display panel 1 provided in the second embodiment of the present invention is basically similar to that of the liquid crystal display panel 1 in the first embodiment, and the difference is: The ends are respectively attached to the array substrate and the color filter substrate. Specifically, in this embodiment, the cross section of each retaining wall structure 105 is an isosceles trapezoid, the long side of the isosceles trapezoid is attached to the array substrate, and the short side of the isosceles trapezoid is attached to the color filter substrate .

It can be understood that both ends of each barrier wall structure 105 are respectively attached to the array substrate and the color filter substrate, so all the light emitted from any sub-pixel 10 to other sub-pixels 10 will be emitted by the sub-pixel 10 and the other sub-pixels 10 . The blocking wall structures 105 between the adjacent sub-pixels 10 of the sub-pixels 10 are blocked, thereby completely avoiding the color mixing interference between the sub-pixels 10 of different colors, and greatly improving the display effect.

Referring to FIG. 3 , the structure of the liquid crystal display panel 1 provided in the third embodiment of the present invention is basically similar to that of the liquid crystal display panel 1 in the first embodiment, and the difference is: any two adjacent color photoresists in the third embodiment A black matrix 106 is set between 1040. In this embodiment, one end of each blocking wall structure 105 is attached to the array substrate, and the other end is close to the black matrix 106 but not attached to the black matrix 106 . Specifically, in this embodiment, the cross-section of each retaining wall structure 105 is an isosceles trapezoid, the long side of the isosceles trapezoid is attached to the array substrate, and the short side of the isosceles trapezoid is close to the black matrix 106 but not in contact with the black matrix 106 . The black matrix 106 is fitted. It can be understood that, in other embodiments, one end of each blocking wall structure 105 is attached to the array substrate, and the other end can also be attached to the black matrix 106 .

Referring to FIG. 4 , the structure of the liquid crystal display panel 1 provided in the fourth embodiment of the present invention is basically similar to that of the liquid crystal display panel 1 in the first embodiment. One end is attached to the color filter substrate, and the other end is close to the array substrate but not attached to the color filter substrate. Specifically, in this embodiment, the cross-section of each retaining wall structure 105 is an isosceles trapezoid, the long side of the isosceles trapezoid is attached to the color filter substrate, and the short side of the isosceles trapezoid is close to the array substrate but not in contact with the array substrate. Array substrate bonding.

Referring to FIG. 5 , the structure of the liquid crystal display panel 1 provided in the fifth embodiment of the present invention is basically similar to that of the liquid crystal display panel 1 in the fourth embodiment. The ends are respectively attached to the array substrate and the color filter substrate. Specifically, in this embodiment, the cross section of each retaining wall structure 105 is an isosceles trapezoid, the long side of the isosceles trapezoid is attached to the color filter substrate, and the short side of the isosceles trapezoid is attached to the array substrate .

Referring to FIG. 6 , the structure of the liquid crystal display panel 1 provided in the sixth embodiment of the present invention is basically similar to that of the liquid crystal display panel 1 in the fourth embodiment, the difference is that any two adjacent color photoresists in the sixth embodiment A black matrix 106 is disposed between 1040 , one end of each retaining wall structure 105 is attached to the black matrix 106 , and the other end is close to the array substrate but not attached to the array substrate. Specifically, in this embodiment, the cross-section of each retaining wall structure 105 is an isosceles trapezoid, the long side of the isosceles trapezoid is attached to the black matrix 106 , and the short side of the isosceles trapezoid is close to the array substrate but not in contact with the array substrate. Array substrate bonding. It can be understood that, in other embodiments, one end of each blocking wall structure 105 is attached to the black matrix 106 , and the other end can also be attached to the array substrate.

Referring to FIG. 7 , the structure of the liquid crystal display panel 1 provided in the seventh embodiment of the present invention is basically similar to that of the liquid crystal display panel 1 in the first embodiment, the difference is that the first substrate 101 in the seventh embodiment is an array substrate, The second substrate 102 is a color filter substrate, the color resist layer 104 is disposed on the side of the array substrate facing the liquid crystal layer 103 , one end of each barrier wall structure 105 is attached to the array substrate, and the other end is close to the color filter substrate but not close to the color filter substrate. It is attached to the color filter substrate. Specifically, in this embodiment, the cross section of each retaining wall structure 105 is an isosceles trapezoid, the long side of the isosceles trapezoid is attached to the array substrate, and the short side of the isosceles trapezoid is close to the color filter substrate but not in contact with the color filter substrate. Color film substrate bonding.

Referring to FIG. 8 , the structure of the liquid crystal display panel 1 provided in the eighth embodiment of the present invention is basically similar to that of the liquid crystal display panel 1 in the seventh embodiment. The ends are respectively attached to the array substrate and the color filter substrate. Specifically, in this embodiment, the cross section of each retaining wall structure 105 is an isosceles trapezoid, the long side of the isosceles trapezoid is attached to the array substrate, and the short side of the isosceles trapezoid is attached to the color filter substrate .

Referring to FIG. 9 , the structure of the liquid crystal display panel 1 provided in the ninth embodiment of the present invention is basically similar to that of the liquid crystal display panel 1 in the seventh embodiment, the difference is that any two adjacent colored lights in the ninth embodiment A black matrix 106 is disposed between the barriers 1040. One end of each barrier structure 105 is attached to the black matrix 106, and the other end is close to the color filter substrate but not attached to the color filter substrate. Specifically, in this embodiment, the cross-section of each retaining wall structure 105 is an isosceles trapezoid, the long side of the isosceles trapezoid is attached to the black matrix 106 , and the short side of the isosceles trapezoid is close to the color filter substrate but not close to the color filter substrate. It is attached to the color filter substrate. It can be understood that, in other embodiments, one end of each retaining wall structure 105 is attached to the black matrix 106 , and the other end can also be attached to the color filter substrate.

Referring to FIG. 10 , the structure of the liquid crystal display panel 1 provided in the tenth embodiment of the present invention is basically similar to that of the liquid crystal display panel 1 in the seventh embodiment. One end is attached to the color filter substrate, and the other end is attached to the array substrate but not attached to the array substrate. Specifically, in this embodiment, the cross-section of each retaining wall structure 105 is an isosceles trapezoid. The long side is attached to the color filter substrate, and the short side of the isosceles trapezoid is close to the array substrate but not attached to the array substrate.

Referring to FIG. 11 , the structure of the liquid crystal display panel 1 provided in the eleventh embodiment of the present invention is basically similar to that of the liquid crystal display panel 1 in the tenth embodiment. The difference is that the structure of each barrier wall structure 105 in the eleventh embodiment is The two ends are respectively attached to the array substrate and the color filter substrate. Specifically, in this embodiment, the cross section of each retaining wall structure 105 is an isosceles trapezoid; the long side of the isosceles trapezoid is attached to the color filter substrate, and the short side of the isosceles trapezoid is attached to the array substrate .

Referring to FIG. 12 , the structure of the liquid crystal display panel 1 provided in the twelfth embodiment of the present invention is basically similar to that of the liquid crystal display panel 1 in the tenth embodiment. A black matrix 106 is disposed between the photoresists 1040 , one end of each barrier wall structure 105 is attached to the color filter substrate, and the other end is close to the black matrix 106 but not attached to the black matrix 106 . Specifically, in this embodiment, the cross-section of each retaining wall structure 105 is an isosceles trapezoid, the long side of the isosceles trapezoid is attached to the color filter substrate, and the short side of the isosceles trapezoid is close to the black matrix 106 but not close to the black matrix 106 . Fitted with the black matrix 106 . It can be understood that, in other embodiments, one end of each retaining wall structure 105 is attached to the color filter matrix, and the other end is attached to the black matrix 106 .

An embodiment of the present invention also provides a method for preparing a liquid crystal display panel, please refer to FIG. 13 , the preparation method includes the following steps:

S1, providing a first substrate with a color resist layer on one side, wherein the color resist layer includes a plurality of color photoresists arranged at intervals.

S2, providing a second substrate, and forming several retaining wall structures on the first substrate or the second substrate.

S3, aligning the first substrate and the second substrate so that each blocking wall structure is located between two adjacent color photoresists, wherein, after aligning, a plurality of blocking wall structures connect the space between the first substrate and the second substrate The space is divided into sections.

S4, injecting liquid crystal into each interval to form several liquid crystal regions.

The above-mentioned preparation method is applicable to the preparation of all the above-mentioned liquid crystal display panels, but there are differences in the specific preparation process of step S2, but these differences have commonalities. The following takes the preparation process of the liquid crystal display panel shown in Embodiment 1 as an example for detailed description.

In step S1, referring to FIG. 14, a first substrate 101 having a color resist layer 104 on one side is provided, wherein the color resist layer 104 includes a plurality of color photoresists 1040 arranged at intervals.

Step S2 specifically includes:

Referring to FIG. 15 , a second substrate 102 is provided, and the first film layer 200 is coated on the second substrate 102 .

Referring to FIG. 16 , the first film layer 200 is exposed by ultraviolet light and the mask 20 , and then the first film layer 200 is developed to obtain a plurality of inner layer structures 1051 .

Referring to FIG. 17 , the light shielding layer 300 is coated on the second substrate 102 and the inner layer structure 1051 .

Referring to FIG. 18 , the light-shielding layer is exposed by ultraviolet light and a mask, and then the light-shielding layer is developed to obtain a plurality of outer layer structures 1052 , wherein each outer layer structure 1052 wraps a corresponding inner layer structure 1051 to form a plurality of retaining walls Structure 105.

The above process is step S2 in the preparation process of the liquid crystal display panel 1 in the first embodiment. It is understood that the specific operation of step S2 in the preparation process of the liquid crystal display panel 1 in other embodiments can be based on the corresponding liquid crystal display panel. 1 to change the structure.

Step S3 , please refer to FIG. 19 , pair the first substrate 101 and the second substrate 102 so that each barrier wall structure 105 is located between two adjacent color photoresists 1040 and is attached to the first substrate 101 , wherein, After being assembled, a plurality of retaining wall structures 105 divide the space between the first substrate 101 and the second substrate 102 into several sections.

In step S4 , referring to FIG. 20 , liquid crystal is injected into each section to form a plurality of liquid crystal regions 1030 . Among them, the liquid crystal is preferably a polymer dispersed liquid crystal. Compared with the prior art, the liquid crystal display panel 1 prepared by the above-mentioned preparation method in the embodiment of the present invention has a plurality of sub-pixels 10, and each sub-pixel 10 includes a color photoresist 1040. If the liquid crystal display panel 1 is provided with Backlight, after the light is scattered by the polymer dispersed liquid crystal, most of the light emitted from any sub-pixel 10 to other sub-pixels 10 will be absorbed by the sub-pixel 10 and the sub-pixels 10 adjacent to the sub-pixel 10 The blocking wall structure 105 between them is blocked, thereby reducing the color mixing interference between the sub-pixels 10 of different colors and improving the display effect.

It should be noted that, the structure of the liquid crystal display panel prepared by the embodiment of the present invention has been described in detail in the above-mentioned related embodiments of the liquid crystal display panel, so it will not be repeated here.

It can be understood that for those of ordinary skill in the art, equivalent replacements or changes can be made according to the technical solutions of the present invention and the inventive concept thereof, and all these changes or replacements should belong to the protection scope of the appended claims of the present invention.

Claims

A liquid crystal display panel, comprising a first substrate and a second substrate arranged oppositely, a liquid crystal layer and a color resistance layer arranged between the first substrate and the second substrate, and the color resistance layer is arranged on the The first substrate faces the side of the liquid crystal layer, the color resist layer includes a plurality of color photoresists arranged at intervals, wherein: the liquid crystal display panel further includes a plurality of blocking wall structures, and each of the blocking wall structures includes an inner A layer structure and an outer layer structure, the outer layer structure wraps the inner layer structure, the inner layer structure is made of a light-transmitting material, the outer layer structure adopts a light-shielding layer, and each of the retaining wall structures is arranged in the opposite direction. Between two adjacent color photoresists, a plurality of the blocking wall structures divide the liquid crystal layer into a plurality of liquid crystal regions, and each of the liquid crystal regions corresponds to one of the color photoresists.
The liquid crystal display panel of claim 1, wherein the first substrate is a color filter substrate, and the second substrate is an array substrate; or, the first substrate is an array substrate, and the second substrate is a color filter substrate film substrate.
The liquid crystal display panel of claim 2 , wherein two ends of each of the blocking wall structures are respectively attached to one side surface of the first substrate and the second substrate facing the liquid crystal layer.
The liquid crystal display panel according to claim 2 or 3, wherein the cross-section of each of the retaining wall structures is an isosceles trapezoid.
The liquid crystal display panel according to claim 4, wherein the long side of the blocking wall structure with an isosceles trapezoid cross-section is attached to the first substrate, and the short side of the blocking wall structure with an isosceles trapezoid cross-section The side is attached to the second substrate; or, the long side of the retaining wall structure with an isosceles trapezoid cross-section is attached to the second substrate, and the short side of the retaining wall structure with an isosceles trapezoid cross-section. The edge is attached to the first substrate.
The liquid crystal display panel according to claim 1, wherein the thickness of the inner layer structure ranges from 3 to 30 μm, and the thickness of the outer layer structure ranges from 0.1 to 3 μm.
The liquid crystal display panel of claim 1, wherein the inner layer structure and the outer layer structure are formed by a same masking process.
The liquid crystal display panel of claim 1, wherein the light-transmitting material is polystyrene, and the light-shielding layer is any one or a combination of black matrix, metal and alloy.
The liquid crystal display panel of claim 1, wherein a black matrix is arranged between any two adjacent color photoresists.
The liquid crystal display panel of claim 1, wherein the liquid crystal is a polymer dispersed liquid crystal.
A preparation method of a liquid crystal display panel, wherein the preparation method comprises:

providing a first substrate with a color resist layer on one side, wherein the color resist layer includes a plurality of color photoresists arranged at intervals;

A second substrate is provided, and several retaining wall structures are formed on the first substrate or the second substrate, wherein each of the retaining wall structures includes an inner layer structure and an outer layer structure, and the outer layer structure wraps the an inner layer structure, the inner layer structure is made of a light-transmitting material, and the outer layer structure is a light-shielding layer;

The first substrate and the second substrate are aligned so that each of the blocking wall structures is located between two adjacent color photoresists, wherein after the alignment, a plurality of the blocking wall structures The space between the first substrate and the second substrate is divided into several sections;

Liquid crystal is injected into each of the sections to form a plurality of liquid crystal regions.
The method for manufacturing a liquid crystal display panel according to claim 1, wherein the first substrate is a color filter substrate, and the second substrate is an array substrate; or, the first substrate is an array substrate, and the second substrate is an array substrate. The substrate is a color filter substrate.
The method for manufacturing a liquid crystal display panel according to claim 12 , wherein two ends of each of the blocking wall structures are respectively attached to one side surface of the first substrate and the second substrate facing the liquid crystal layer. .
The method for manufacturing a liquid crystal display panel according to claim 12 or 13, wherein the cross-section of each of the retaining wall structures is an isosceles trapezoid.
The method for manufacturing a liquid crystal display panel according to claim 14, wherein the long side of the retaining wall structure having an isosceles trapezoid cross-section is attached to the first substrate, and the retaining wall having an isosceles trapezoid cross-section The short side of the structure is attached to the second substrate; or, the long side of the retaining wall structure with an isosceles trapezoid cross-section is attached to the second substrate, and the blocking wall with an isosceles trapezoid cross-section The short side of the structure is attached to the first substrate.
The method for manufacturing a liquid crystal display panel according to claim 11 , wherein the thickness of the inner layer structure ranges from 3 to 30 μm, and the thickness of the outer layer structure ranges from 0.1 to 3 μm.
The method for manufacturing a liquid crystal display panel according to claim 11 , wherein the inner layer structure and the outer layer structure are prepared and formed by the same mask process.
The method for manufacturing a liquid crystal display panel according to claim 11, wherein the light-transmitting material is polystyrene, and the light-shielding layer is any one or a combination of black matrix, metal and alloy.
The method for manufacturing a liquid crystal display panel according to claim 11, wherein a black matrix is arranged between any two adjacent color photoresists.
The method for manufacturing a liquid crystal display panel according to claim 11, wherein the liquid crystal is a polymer dispersed liquid crystal.