Liquid crystal display device and electronic equipment

Abstract

The invention relates to the technical field of electronic equipment, and provides a liquid crystal display device and electronic equipment. The liquid crystal display device comprises a substrate layer, an electrode layer and a liquid crystal layer, wherein the electrode layer comprises a pixel electrode and a common electrode which are arranged on the first surface, facing the light emitting direction, of the base body layer, the pixel electrode comprises at least two first strip-shaped electrodes which are arranged at intervals in the first direction, and the common electrode comprises at least two second strip-shaped electrodes which are arranged at intervals in the first direction; the first strip-shaped electrodes and the second strip-shaped electrodes are sequentially and alternately arranged at intervals, the width of the first strip-shaped electrodes is the same as that of the second strip-shaped electrodes, and the first distance between the first strip-shaped electrodes and the second strip-shaped electrodes in the first direction is the same as that of the first strip-shaped electrodes; the liquid crystal layer comprises a plurality of liquid crystal molecules and is arranged on the side, away from the base body layer, of the electrode layer, and the pixel electrode and the common electrode are used for forming an electric field controlling rotation of the liquid crystal molecules.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronic equipment, in particular to a liquid crystal display device and electronic equipment. BACKGROUND

[0002] Liquid Crystal Display (LCD) is a kind of flat panel display technology that adjusts light by voltage control of liquid crystal molecule deflection. Liquid crystal display or liquid crystal display screen is widely used in various electronic equipment. SUMMARY

[0003] The present application provides a liquid crystal display device and electronic equipment, and the technical solutions are as follows:

[0004] In one aspect, the present application provides a liquid crystal display device, which comprises a substrate layer, an electrode layer and a liquid crystal layer; wherein the electrode layer comprises a pixel electrode and a common electrode arranged on a first surface of the substrate layer facing a light emitting direction, the pixel electrode comprises at least two first strip electrodes arranged at intervals along a first direction, the common electrode comprises at least two second strip electrodes arranged at intervals along the first direction, the first strip electrodes and the second strip electrodes are alternately arranged at intervals, the width of the first strip electrode is the same as the width of the second strip electrode, and the first pitch of the first strip electrode and the second strip electrode in the first direction is the same as the width of the first strip electrode; the liquid crystal layer comprises a plurality of liquid crystal molecules, and the liquid crystal layer is arranged on a side of the electrode layer away from the substrate layer, the pixel electrode and the common electrode are used to form an electric field for controlling rotation of the liquid crystal molecules.

[0005] In one possible implementation manner of the present application, the first ends of the at least two first strip electrodes are connected to form a first comb structure of the pixel electrode, the second ends of the at least two second strip electrodes are connected to form a second comb structure of the common electrode, the pixel electrode and the common electrode have a second pitch in a second direction, and the second pitch is the same as or different from the first pitch; the first end and the second end are opposite ends in the second direction, and the second direction is perpendicular to the first direction.

[0006] In one possible implementation manner of the present application, the width of the first strip electrode is greater than or equal to 2.5um and less than or equal to 3.5um; and / or, the thickness of the liquid crystal layer is greater than or equal to 2.5um and less than or equal to 3.5um; and / or, the response speed of the liquid crystal molecule is less than or equal to 2ms.

[0007] In a possible implementation of the present application, the long axis of the liquid crystal molecules has a pre-tilt angle with the light-out direction of the liquid crystal display device, the pre-tilt angle is greater than 0° and less than or equal to 2°; and / or, the liquid crystal display device further comprises a first polarizer arranged on the side of the liquid crystal layer away from the base layer and a second polarizer arranged on the side of the base layer away from the liquid crystal layer, the polarization axis direction of one of the first polarizer and the second polarizer is arranged to be -45°, and the polarization axis direction of the other of the first polarizer and the second polarizer is arranged to be 45°.

[0008] In a possible implementation of the present application, in the process of forming an electric field by the pixel electrode and the common electrode, the liquid crystal molecules rotate relative to the base layer to convert the liquid crystal molecules from a non-display state to a display state, in the display state, the long axis of the liquid crystal molecules satisfies a parallel relationship with the base layer.

[0009] In a possible implementation of the present application, the liquid crystal display device further comprises a first alignment layer and a second alignment layer, the first alignment layer is arranged between the electrode layer and the liquid crystal layer, and the second alignment layer is arranged on the side of the liquid crystal layer away from the base layer, under the action of the first alignment layer and the second alignment layer on the liquid crystal molecules, each liquid crystal molecule is arranged at a pre-tilt angle.

[0010] In a possible implementation of the present application, the splay elastic constant and the bend elastic constant of the liquid crystal molecules are both greater than the twist elastic constant of the liquid crystal molecules.

[0011] In a possible implementation of the present application, the liquid crystal display device further comprises a passivation layer and a protective layer, the passivation layer is arranged on the side of the liquid crystal layer away from the base layer, and the protective layer is arranged on the side of the passivation layer away from the liquid crystal layer.

[0012] In another aspect, the present application provides an electronic device, which comprises a device body and a liquid crystal display device arranged on the device body, the liquid crystal display device comprising: a base layer, an electrode layer, a liquid crystal layer, a first polarizer and a second polarizer; wherein the electrode layer comprises a pixel electrode and a common electrode arranged on the first surface of the base layer facing the light-out direction, the pixel electrode comprises at least two first strip electrodes arranged at intervals along a first direction, the common electrode comprises at least two second strip electrodes arranged at intervals along the first direction, the first strip electrodes and the second strip electrodes are alternately arranged at intervals in sequence, the width of the first strip electrodes is the same as the width of the second strip electrodes, and the first interval of the first strip electrodes and the second strip electrodes in the first direction is the same as the width of the first strip electrodes; the liquid crystal layer comprises a plurality of liquid crystal molecules, the liquid crystal layer is arranged on the side of the electrode layer away from the base layer, and the pixel electrode and the common electrode are used to form an electric field for controlling the rotation of the liquid crystal molecules; the first polarizer is arranged on the side of the liquid crystal layer away from the electrode layer; the second polarizer is arranged on the side of the base layer away from the electrode layer, and the polarization direction of the first polarizer is perpendicular to the polarization direction of the second polarizer.

[0013] In a possible implementation manner of the present application, the device body comprises a first body and a second body connected in rotation, and the liquid crystal display device is arranged on at least one of the first body and the second body; and / or, the long axis of the liquid crystal molecule has a pre-tilt angle with the light output direction of the liquid crystal display device, the pre-tilt angle being greater than 0° and less than or equal to 2°. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 A structural schematic diagram of the liquid crystal display device provided in the present application is shown;

[0015] Figure 2 A top view structural schematic diagram of the electrode layer in the liquid crystal display device provided in the present application is shown;

[0016] Figure 3 A structural schematic diagram of a test device of the liquid crystal display device provided in the present application is shown;

[0017] Figure 4 Test results of the liquid crystal display device provided in the present application are shown.

[0018] Explanation of reference signs:

[0019] 1-substrate layer; 11-first surface; 2-electrode layer; 21-pixel electrode; 211-first strip-shaped electrode; 212-first conductive strip; 22-common electrode; 221-second strip-shaped electrode; 222-second conductive strip; 3-liquid crystal layer; 31-liquid crystal molecule; 4-first polarizer; 5-second polarizer; 6-first alignment layer; 7-second alignment layer; 8-passivation layer; 9-protection layer; 101-liquid crystal display device; 102-laser generator; 103-optical power detector; X-first direction; Y-second direction; Z-light output direction. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the following will further describe the specific technical solutions of the present application with reference to the drawings in the embodiments of the present application. The following embodiments are used to illustrate the present application, but not to limit the scope of the present application.

[0021] In the embodiments of the present application, the terms “first” and “second” are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with “first” and “second” can explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, unless otherwise specified, the meaning of “a plurality of” is two or more.

[0022] In addition, in the embodiments of the present application, the directional terms such as "upper", "lower", "left" and "right" are defined relative to the position of the components shown in the drawings, and it should be understood that these directional terms are relative concepts, which are used for relative description and clarification, and can be changed accordingly according to the position of the components shown in the drawings.

[0023] In the embodiments of the present application, unless specifically defined and limited otherwise, the term "connection" should be understood in a broad sense, for example, "connection" can be fixed connection, or detachable connection, or integral; can be directly connected, or indirectly connected through an intermediate medium.

[0024] In the embodiments of the present application, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or further includes elements inherent to such a process, method, article or device. Without more limitations, the element defined by the sentence "including a" does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0025] In the embodiments of the present application, the word "exemplary" or "for example" is used to mean serving as an example, instance or illustration. Any embodiment or design solution described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or having more advantages than other embodiments or design solutions. Rather, the word "exemplary" or "for example" is used in the sense of "by way of example", to convey a particular meaning in a specific context.

[0026] Liquid crystal display technology is widely used in products such as televisions, computers, mobile phones and instrument devices to display pictures. The driving of the liquid crystal display device is completed by the rotation of liquid crystal molecules under the electric field. Due to the characteristics of liquid crystal materials and the structure of the liquid crystal display device, the state transition between different frames of the liquid crystal display device is not completed immediately, but needs a certain time. When the next frame of picture is displayed, it will be affected by the lag of the state of the liquid crystal molecules of the previous frame of picture. This lag phenomenon is reflected in the difference in the optical performance of the liquid crystal display device, which can be observed by the human eye, that is, the phenomenon of trailing. The response speed of the liquid crystal display device in the related art is 20ms. For some high refresh rate games or movies, and bullet screen, the trailing phenomenon is more obvious. When the response speed of the liquid crystal display device is improved, the trailing problem will be obviously improved, and the liquid crystal display device can also present a clearer display picture, which is beneficial to improve the user experience.

[0027] The embodiments of the present application provide a liquid crystal display device, which can improve the response speed of the liquid crystal display device, with reference toFigure 1 and Figure 2 , Figure 1 A schematic structural diagram of a liquid crystal display device provided by the present application is shown in the following, Figure 2 A schematic structural diagram of an electrode layer in a liquid crystal display device provided by the present application is shown in the following, which will be described in the following in combination with examples in the drawings.

[0028] The liquid crystal display device 101 provided by the embodiments of the present application comprises a substrate layer 1, an electrode layer 2 and a liquid crystal layer 3; wherein the electrode layer 2 comprises a pixel electrode 21 and a common electrode 22 arranged on a first surface 11 of the substrate layer 1 facing a light-out direction Z, the pixel electrode 21 comprises at least two first strip electrodes 211 arranged in a first direction X at intervals, the common electrode 22 comprises at least two second strip electrodes 221 arranged in the first direction X at intervals, the first strip electrodes 211 and the second strip electrodes 221 are arranged alternately at intervals in sequence, the width of the first strip electrodes 211 is the same as the width of the second strip electrodes 221, and the first pitch of the first strip electrodes 211 and the second strip electrodes 221 in the first direction X is the same as the width of the first strip electrodes 211; the liquid crystal layer 3 comprises a plurality of liquid crystal molecules 31, and the liquid crystal layer 3 is arranged on a side of the electrode layer 2 away from the substrate layer 1, the pixel electrode 21 and the common electrode 22 are used to form an electric field for controlling rotation of the liquid crystal molecules 31.

[0029] In the embodiments of the present application, the substrate layer 1 can provide a bearing and a setting basis for other components in the liquid crystal display device 101. For example, the substrate layer 1 can be made of an alkali-free glass (such as sodium-calcium glass), a polymer material, etc. The substrate layer 1 has the characteristics of high light transmittance, flatness, etc. The substrate layer 1 can provide a flat and transparent support platform for other film layers, etc.

[0030] In the embodiments of the present application, a varying electric field can be generated in the liquid crystal display device 101 by the electrode layer 2 to drive the liquid crystal molecules 31 in the liquid crystal layer 3 to rotate by the variation of the electric field. For example, a conductive thin film can be formed on the first surface 11 of the substrate layer 1 facing the light-out direction Z (the transmission direction of light in the liquid crystal display device 101) by physical vapor deposition or chemical vapor deposition technology, and then the conductive thin film is patterned by a photolithography process (gluing, exposure, development, etching) to form the electrode layer 2 with a desired structure.

[0031] For example, Figure 2As shown, the electrode layer 2 can be configured to include a pixel electrode 21 and a common electrode 22. The pixel electrode 21 includes a plurality of first strip electrodes 211, which can be configured in a substantially rectangular structure, and the plurality of first strip electrodes 211 are arranged on the first surface 11 in the first direction X with equal or approximately equal widths in the first direction X. The common electrode 22 includes a plurality of second strip electrodes 221, which can also be configured in a substantially rectangular structure, and the plurality of second strip electrodes 221 are also arranged on the first surface 11 in the first direction X with equal or approximately equal widths in the first direction X.

[0032] In another example, along the first direction X, the first strip electrodes 211 and the second strip electrodes 221 can be alternately arranged in sequence, and the widths of the first strip electrodes 211 and the second strip electrodes 221 can also be equal. The first spacing between adjacent first strip electrodes 211 and second strip electrodes 221 can also be opposite to the width of the first strip electrodes 211. For example, along the first direction X, the spacing between two adjacent first strip electrodes 211 can be set to three times the width of the first strip electrodes 211, one second strip electrode 221 is arranged between the two adjacent first strip electrodes 211, and the distance between the second strip electrode 221 and the two adjacent first strip electrodes 211 is the same. Similarly, the spacing between two adjacent second strip electrodes 221 can be set to three times the width of the first strip electrodes 211, one first strip electrode 211 is arranged between the two adjacent second strip electrodes 221, and the distance between the first strip electrode 211 and the two adjacent second strip electrodes 221 is the same.

[0033] In the embodiments of the present application, the liquid crystal layer 3 can be arranged on the side of the electrode layer 2 away from the base layer 1. For example, a plurality of liquid crystal molecules 31 are arranged on the side of the electrode layer 2 away from the base layer 1 in the same or approximately same posture along the light-out direction Z, and the liquid crystal molecules 31 can adopt nematic liquid crystal, smectic liquid crystal, etc.

[0034] The liquid crystal display device 101 provided by the embodiments of the present application is provided with the base layer 1, and the base layer 1 can provide a flat supporting platform for other devices in the liquid crystal display device 101. The electrode layer 2 is provided in a structure including a plurality of first strip electrodes 211 and a plurality of second strip electrodes 221, and the plurality of first strip electrodes 211 and the plurality of second strip electrodes 221 are arranged alternately and spacedly in sequence. By applying voltage to the plurality of first strip electrodes 211 and the plurality of second strip electrodes 221, the required electric field can be generated in the liquid crystal display device 101, so that the liquid crystal molecules 31 can be driven to rotate relative to the base layer 1 by the change of the electric field, so as to realize the change of light transmittance and realize the display of images. Meanwhile, the width of the first strip electrode 211 and the width of the second strip electrode 221 are provided as the same width, and the first interval of the first strip electrode 211 and the second strip electrode 221 in the first direction X is provided as the same as the width of the first strip electrode 211, which is beneficial to reduce the proportion of the non-emitting area in the liquid crystal display device 101, can reduce the propagation distance of the electric field between the adjacent first strip electrode 211 and the second strip electrode 221, and can also make the horizontal electric field (parallel to the first direction X) in the liquid crystal display device 101 more than the vertical electric field (parallel to the light emitting direction Z), so as to significantly improve the response speed of the liquid crystal display device 101 without reducing the transmittance of the liquid crystal display device 101.

[0035] For example, reducing the width of the first strip electrode 211, the width of the second strip electrode 221 and the first interval can shorten the propagation distance of the electric field between the adjacent first strip electrode 211 and the second strip electrode 221, so as to improve the response speed of the liquid crystal display device 101, but will increase the proportion of the area of the liquid crystal molecules 31 without deflection and lose the transmittance of the liquid crystal display device 101; increasing the width of the first strip electrode 211, the width of the second strip electrode 221 and the first interval can reduce the proportion of the area of the liquid crystal molecules 31 without deflection and improve the transmittance of the liquid crystal display device 101, and on the other hand, can also reduce the processing precision requirement of each part of the liquid crystal display device 101, which is beneficial to improve the processing yield of the liquid crystal display device 101, but increasing the width of the first strip electrode 211, the width of the second strip electrode 221 and the first interval will reduce the response speed of the liquid crystal display device 101. Therefore, the width of the first strip electrode 211, the width of the second strip electrode 221 and the first interval are provided as the same suitable value, which can not only improve the response speed of the liquid crystal display device 101, but also make the transmittance meet the use requirement.

[0036] In some possible embodiments of the present application, as Figure 3As shown, the first ends of the at least two first strip electrodes 211 are connected to form the first comb structure of the pixel electrode 21, and the second ends of the at least two second strip electrodes 221 are connected to form the second comb structure of the common electrode 22. The pixel electrode 21 and the common electrode 22 have a second pitch in the second direction Y, which is the same as or different from the first pitch. The first end and the second end are opposite ends in the second direction Y, and the second direction Y is perpendicular to the first direction X.

[0037] In the embodiments of the present application, the same end of all the first strip electrodes 211 can be connected by the first conductive strip 212, and the same end of all the second strip electrodes 221 can be connected by the second conductive strip 222.

[0038] For example, along the length direction of the first strip electrode 211, i.e., along the second direction Y, the first end of each first strip electrode 211 can be extended to the edge of the base layer 1, and the other end of each first strip electrode 211 can be spaced apart from the other edge of the base layer 1 in the second direction Y. The first conductive strip 212 can be arranged at the position of the first end of each first strip electrode 211 and extended along the first direction X at the edge of the base layer 1 to electrically connect all the first strip electrodes 211 by the first conductive strip 212, so that the pixel electrode 21 forms the first comb structure.

[0039] For another example, along the second direction Y, the second end of each second strip electrode 221 can be extended to the other edge of the base layer 1 away from the first conductive strip 212, and the other end of each second strip electrode 221 can be spaced apart from the edge of the base layer 1 where the first conductive strip 212 is arranged in the second direction Y. The second conductive strip 222 can be arranged at the position of the second end of each second strip electrode 221 and extended along the first direction X at the edge of the base layer 1 to electrically connect all the second strip electrodes 221 by the second conductive strip 222, so that the common electrode 22 forms the second comb structure.

[0040] For another example, along the second direction Y, each first strip electrode 211 can be spaced apart from the second conductive strip 222 at one end close to the second conductive strip 222, and each second strip electrode 221 can be spaced apart from the first conductive strip 212 at one end close to the first conductive strip 212. For example, along the second direction Y, the distance between the first strip electrode 211 and the second conductive strip 222 can be set as the second pitch, and the distance between the second strip electrode 221 and the first conductive strip 212 can also be set as the second pitch. The second pitch can be set as 5 um, or 3 um, or 2 um, or 8 um, etc. The embodiments of the present application do not limit the specific value of the second pitch.

[0041] The liquid crystal display device 101 provided by the embodiments of the present application is convenient for applying voltage to all the first strip electrodes 211 and all the second strip electrodes 221 respectively, because the first end of each first strip electrode 211 is connected and the second end of each second strip electrode 221 is connected. In addition, the interval of the pixel electrode 21 and the common electrode 22 along the second direction Y is set as the second interval, which is beneficial to form a more uniform electric field through the plurality of first strip electrodes 211 and the plurality of second strip electrodes 221.

[0042] In some possible embodiments of the present application, the width of the first strip electrode 211 is greater than or equal to 2.5 um and less than or equal to 3.5 um; and / or, the thickness of the liquid crystal layer 3 is 3±0.5 um; and / or, the response speed of the liquid crystal molecule 31 is not greater than 2 ms.

[0043] In the embodiments of the present application, along the first direction X, the width of the first strip electrode 211 can be set in the range of 2.5 um to 3.5 um. That is, the width of the second strip electrode 221 and the first interval are both set in the range of 2.5 um to 3.5 um. For example, the width of the first strip electrode 211 is set as 2.5 um, 2.7 um, 2.9 um, 3 um, 3.2 um, 3.4 um or 3.5 um, etc.

[0044] In the embodiments of the present application, along the light-out direction Z, the thickness of the liquid crystal layer 3 can be set in the range of 2.5 um to 3.5 um. For example, the thickness of the liquid crystal layer 3 along the light-out direction Z can be controlled by selecting the axial length of the liquid crystal molecule 31 and the arrangement layer number of the liquid crystal molecule 31 along the light-out direction Z. For example, the thickness of the liquid crystal layer 3 is set as 2.5 um, 2.8 um, 3 um, 3.3 um or 3.5 um, etc.

[0045] In the embodiments of the present application, by selecting the width of the first strip electrode 211, the width of the second strip electrode 221, the first interval and the thickness of the liquid crystal layer 3, the response speed of the liquid crystal display device 101 can be less than or equal to 2 ms. For example, the width of the first strip electrode 211, the width of the second strip electrode 221 and the first interval are all set as 3 um, and the thickness of the liquid crystal layer 3 is set as 3 um. Then, the response speed of the liquid crystal display device 101 can be equal to 2 ms, or close to 2 ms.

[0046] The liquid crystal display device 101 provided in this application embodiment can achieve a response speed of 2ms or close to 2ms because the width of the first strip electrode 211 and the thickness of the liquid crystal layer 3 can both be set to be greater than or equal to 2.5um and less than or equal to 3.5um. Compared with the liquid crystal display device 101 in related technologies, the response speed can be improved by nearly 10 times, thereby helping to reduce the trailing phenomenon in electronic devices using the liquid crystal display device 101 provided in this application embodiment.

[0047] In some possible embodiments of this application, reference is made to Figure 3 , Figure 1 This is a schematic diagram of the test apparatus for the liquid crystal display device 101 provided in this application. The long axis of the liquid crystal molecule 31 has a pretilt angle with the light emission direction Z of the liquid crystal display device 101, the pretilt angle being greater than 0° and less than or equal to 2°; and / or, the liquid crystal display device 101 further includes a first polarizer 4 disposed on the side of the liquid crystal layer 3 facing away from the substrate layer 1 and a second polarizer 5 disposed on the side of the substrate layer 1 facing away from the liquid crystal layer 3, wherein the polarization axis direction of one of the first polarizer 4 and the second polarizer 5 is set to -45°, and the polarization axis direction of the other of the first polarizer 4 and the second polarizer 5 is set to 45°.

[0048] In the embodiments of this application, such as Figure 3 As shown, the liquid crystal molecules 31 can be positioned along the light emission direction Z, that is, the long axis of the liquid crystal molecules 31 extends along the light emission direction Z. Furthermore, the long axis of the liquid crystal molecules 31 can have a pretilt angle with the light emission direction Z, that is, the long axis of the liquid crystal molecules 31 has a certain angle with the stacking direction of the substrate layer 1 and the electrode layer 2.

[0049] For example, the pretilt angle between the long axis of the liquid crystal molecule 31 and the light emission direction Z can be set to 0° to 2°. For example, the pretilt angle can be set to 0.05°, 0.08°, 0.1°, 0.13°, 0.16°, 2°, etc. The pretilt angle can be close to 0°, but not equal to 0 degrees.

[0050] In another example, the flexural elastic constant and bending elastic constant of liquid crystal molecule 31 are both greater than the torsional elastic constant of liquid crystal molecule 31. A liquid crystal material with both flexural and bending elastic constants larger than the torsional elastic constant can be selected. For example, a liquid crystal material with both flexural and bending elastic constants close to twice the torsional elastic constant can be selected, such as a liquid crystal material with a flexural elastic constant of 13.2, a bending elastic constant of 14.6, and a torsional elastic constant of 7.9.

[0051] In the embodiments of this application, such as Figure 1As shown, the first polarizer 4 and the second polarizer 5 can be arranged in the liquid crystal display device 101 to adjust the light transmission direction of light by the first polarizer 4 and the second polarizer 5. For example, the first polarizer 4 and the second polarizer 5 can both be iodine polaroid, fuel polaroid or the like. The first polarizer 4 can be arranged on the light emission side of the liquid crystal display device 101 along the light emission direction Z, and the second polarizer 5 can be arranged on the light incidence side of the liquid crystal display device 101 along the light emission direction Z, that is, the first polarizer 4 is located on the side of the liquid crystal layer 3 away from the base layer 1, and the second polarizer 5 is located on the side of the base layer 1 away from the liquid crystal layer 3.

[0052] For example, the first polarizer 4 can be arranged such that the included angle between the polarization direction of the first polarizer 4 and the first direction X is 45°, and the second polarizer 5 can be arranged such that the included angle between the polarization direction of the second polarizer 5 and the first direction X is -45°. Alternatively, the first polarizer 4 can be arranged such that the included angle between the polarization direction of the first polarizer 4 and the first direction X is -45°, and the second polarizer 5 can be arranged such that the included angle between the polarization direction of the second polarizer 5 and the first direction X is 45°. In this way, the included angle between the polarization direction of the first polarizer 4 and the polarization direction of the second polarizer 5 is 90°.

[0053] The liquid crystal display device 101 provided by the embodiments of the present application can make the liquid crystal molecules 31 arrange in a nearly vertical manner on the side of the electrode layer 2 away from the base layer 1, because the included angle between the long axis of the liquid crystal molecules 31 and the light emission direction Z is greater than 0° and less than 2°. In this way, in the case of generating an electric field through the electrode layer 2, because the horizontal electric field is more than the vertical electric field, the liquid crystal molecules 31 can be driven by a greater driving force along the first direction X, so that the liquid crystal molecules 31 can be quickly rotated from the out-of-plane direction (the light emission direction Z) to the in-plane direction (the first direction X), and the response speed of the liquid crystal display device 101 can be further improved. Moreover, the polarization direction of the first polarizer 4 and the polarization direction of the second polarizer 5 are 45° and -45° respectively, so that the transmission of all light can be blocked by the first polarizer 4 and the second polarizer 5, so that the liquid crystal display device 101 can be in a full black state when no image is displayed, which is beneficial to reducing the risk of light leakage, and after the liquid crystal molecules 31 are driven to rotate by the electric field, the light can pass through the two polarizers, so that the image can be displayed.

[0054] In some possible embodiments of the present application, as shown in FIG. 2, Figure 1 As shown, in the process of forming an electric field by the pixel electrode 21 and the common electrode 22, the liquid crystal molecules 31 rotate relative to the base layer 1 to make the liquid crystal molecules 31 change from a non-display state to a display state, and in the case of the display state, the long axis of the liquid crystal molecules 31 satisfies the parallel relationship with the base layer 1.

[0055] In the embodiment of the present application, in the case that no voltage is applied to the pixel electrode 21 and the common electrode 22, no electric field exists in the liquid crystal display device 101, and the liquid crystal molecules 31 remain in the non-display state, in which the long axes of the liquid crystal molecules 31 are parallel to the light-out direction Z. In the case that no voltage is applied to the pixel electrode 21 and the common electrode 22, horizontal electric field and vertical electric field can be generated by the plurality of first strip electrodes 211 and the plurality of second strip electrodes 221, and in this case, the liquid crystal molecules 31 are driven by the horizontal electric field with greater intensity to rotate from the light-out direction Z to the first direction X until the liquid crystal molecules 31 are parallel or nearly parallel to the substrate layer 1, and the liquid crystal molecules 31 are in the display state. In this way, the light passing through the second polarizer 5 can continue to pass through the liquid crystal molecules 31 and the first polarizer 4, so that the liquid crystal display device 101 can display an image. When the voltage applied to the pixel electrode 21 and the common electrode 22 disappears, the electric field in the liquid crystal display device 101 also disappears, and the liquid crystal molecules 31 rotate from the first direction X to the light-out direction Z to return to the non-display state.

[0056] The liquid crystal display device 101 provided by the embodiment of the present application can display an image by blocking or transmitting light, because the liquid crystal molecules 31 can be converted between the non-display state and the display state under the drive of the electric field.

[0057] In some possible embodiments of the present application, as shown in Figure 1 The liquid crystal display device 101 further includes a first orientation layer 6 and a second orientation layer 7, the first orientation layer 6 is arranged between the electrode layer 2 and the liquid crystal layer 3, and the second orientation layer 7 is arranged on the side of the liquid crystal layer 3 away from the substrate layer 1, and each liquid crystal molecule 31 is arranged at a pre-tilt angle under the action of the first orientation layer 6 and the second orientation layer 7.

[0058] In the embodiment of the present application, the liquid crystal molecules 31 need to be arranged at a pre-tilt angle with the light-out direction Z on the side of the electrode layer 2 away from the substrate layer 1 in the non-display state. The first orientation layer 6 and the second orientation layer 7 can be arranged to make the liquid crystal molecules 31 maintain the arrangement mode with the pre-tilt angle between the long axis and the light-out direction Z in the non-display state.

[0059] For example, the first orientation layer 6 and the second orientation layer 7 can be made of polyimide or alicyclic structure material, etc.

[0060] The liquid crystal display device 101 provided by the embodiment of the present application can be used to improve the display performance of the liquid crystal display device 101, because the first alignment layer 6 and the second alignment layer 7 are arranged on the two side surfaces of the liquid crystal layer 3 along the light emitting direction Z, and the liquid crystal molecules 31 can be kept in a stable state with a predetermined angle with the light emitting direction Z in the non-display state by the chemical or physical action of the first alignment layer 6 and the second alignment layer 7.

[0061] In some possible embodiments of the present application, as shown in IPS mode The liquid crystal display device 101 further comprises a passivation layer 8 and a protective layer 9, the passivation layer 8 is arranged on the side of the liquid crystal layer 3 away from the base layer 1, and the protective layer 9 is arranged on the side of the passivation layer 8 away from the liquid crystal layer 3.

[0062] In the embodiment of the present application, the passivation layer 8 can be arranged in the liquid crystal display device 101 to protect the electronic devices in the liquid crystal display device 101. For example, the passivation layer 8 can be arranged on the side of the liquid crystal layer 3 away from the base layer 1, such as arranged on the side of the second alignment layer 7 away from the liquid crystal layer 3. The passivation layer 8 can be made of silicon nitride and other materials, and the silicon nitride can be deposited on the surface of the second alignment layer 7 by chemical deposition to form the passivation layer 8.

[0063] In the embodiment of the present application, the protective layer 9 can be arranged in the liquid crystal display device 101 to protect the liquid crystal display device 101. For example, the protective layer 9 can be arranged on the outermost layer of the display output surface of the liquid crystal display device 101, that is, the user can touch the protective layer 9. The protective layer 9 can be made of glass and other materials, and the protective layer 9 can be arranged in a thin plate shape and fixed on the passivation layer 8.

[0064] The liquid crystal display device 101 provided by the embodiment of the present application can be used to improve the display performance of the liquid crystal display device 101, because the first alignment layer 6 and the second alignment layer 7 are arranged on the two side surfaces of the liquid crystal layer 3 along the light emitting direction Z, and the liquid crystal molecules 31 can be kept in a stable state with a predetermined angle with the light emitting direction Z in the non-display state by the chemical or physical action of the first alignment layer 6 and the second alignment layer 7.

[0065] The performance of the liquid crystal display device provided by the embodiment of the present application is described below by means of software simulation and physical testing.

[0066] Example 1: The transmittance, response time of the liquid crystal display device (hereinafter referred to as V-IPS mode) provided in the present application and the liquid crystal display device in the prior art (hereinafter referred to as IPS mode) were compared under the same parameter conditions by using optical simulation software DIMOS.2D. In the simulation environment, the parameters of the liquid crystal molecules were set as follows: the splay elastic constant K11 was 13.2, the twist elastic constant K22 was 7.9, the bend elastic constant K33 was 14.6, the birefringence Δn was 0.33, the dielectric constant Δε was 14.1, the rotational viscosity γ was 0.07, the thickness of the liquid crystal layer was 3 um, the pretilt angle was 2°, the first strip-shaped electrode, the second strip-shaped electrode and the first spacing were all set as 3.5 um. The polarization directions of the upper polarizer and the lower polarizer in the IPS mode were set as 0° and 90° respectively, and the polarization directions of the first polarizing element and the second polarizing element in the V-IPS mode were set as -45° and 45° respectively. The response time was defined as the time required for the change in brightness from the initial state to the cutoff state.

[0067] Table 1: Comparison of response time and transmittance of IPS mode and V-IPS mode

[0068] V-IPS mode Rising edge response time 4.1 ms 2.3 ms Falling edge response time 7.8 ms 1.8 ms Transmittance Relative transmittance 23.9％ 22.9％ Figure 3 100％ 95.8％

[0069] According to the test results recorded in Table 1, by comparing the response time and transmittance of the IPS mode and the V-IPS mode, compared with the IPS mode, the response speed of the liquid crystal display device in the V-IPS mode provided in the present application was greatly improved, and the transmittance could be maintained above 95% of the IPS mode. The falling edge response speed of the liquid crystal display device in the V-IPS mode was 1.8 ms, which was significantly improved compared with the falling edge response time of 7.8 ms of the IPS mode.

[0070] Example 2: An electrode layer was prepared using a transparent indium tin oxide (ITO) glass substrate with a length and width of 20 mm, wherein the first strip-shaped electrode, the second strip-shaped electrode and the first spacing on the ITO glass substrate were all 3.5 um. The upper substrate and the lower substrate of the liquid crystal display device were ultrasonically cleaned with water, ethanol and acetone for 5 min and then dried in a dust-free environment. Then, the UV ozone cleaner was used to clean the organic impurities on the upper substrate and the lower substrate. Finally, the upper substrate and the lower substrate were stored in a dust-free environment.

[0071] After the two substrates are cleaned, liquid crystal alignment agent is added uniformly to the two substrates, and then the alignment agent is spin-coated at 2500 rpm for 20 seconds. The substrates are preheated at 80°C for 5 minutes in a dust-free environment, and then heated and cured at 200°C for 60 minutes to complete the heating and curing of the liquid crystal alignment agent.

[0072] The upper and lower substrates are fixed by using an adhesive mixed with 3um spacers to uniformly dispense the adhesive on the upper and lower sides of the upper and lower substrates. After preliminary fixing, the substrates are exposed to ultraviolet light for 5 minutes to further fix the substrates. Then, the uniformly mixed liquid crystal material is filled into the liquid crystal cell by capillary method, and the liquid crystal cell is placed in a temperature control device. The clearing point temperature of the liquid crystal material is 75°C, and the temperature control device is heated to the clearing point temperature of the liquid crystal material and kept for 5 minutes. Then, the temperature control device is cooled at a rate of 1°C / min until the temperature is below the clearing point temperature of the liquid crystal material (which can be 35°C). The first polarizer and the second polarizer are added to the fixed liquid crystal cell, respectively. The polarization directions of the first polarizer and the second polarizer are 45° and -45°, respectively. As shown in Figure 4 , a driving voltage with a voltage amplitude of 6.0V is applied to the liquid crystal display device at the substrate lead electrode using a signal generator, and a laser is emitted to the liquid crystal display device by a laser generator 102. The response time of the liquid crystal display device is tested by a light power detector 103.

[0073] The conditions for testing the response time of the liquid crystal display device are: temperature 25°C±5°C; humidity ≤60%. The laser generated by the laser generator 102 is emitted to the light power detector 103 after passing through the second polarizer, the liquid crystal layer and the first polarizer. The light power detector 103 converts the light signal into an electrical signal and displays it on an oscilloscope connected to the light power detector 103. The brightness and response time of the liquid crystal display device are preliminarily calculated by using the response time curve fed back in the oscilloscope.

[0074] Referring to Figure 4 , Figure 4 , the test results of the liquid crystal display device provided in the present application are shown. The rising edge response time is defined as the change of brightness from 10% to 90% of the brightness difference, and the falling edge response time is defined as the change from 90% to 10% of the brightness difference. The response time of the liquid crystal display device is obtained by processing the curve data of five liquid crystal cell samples as shown in Sample No. .

[0075] According to the data recorded in Table 2, the rising edge response time of the liquid crystal display device provided in the present application is less than 3ms, and the average time is 2.5ms. The average time of the falling edge response time is 1.9ms, that is, the falling edge response time can be less than 2ms.

[0076] Table 2 Response time of liquid crystal display device

[0077] Average Rising edge time T1 (ms) falling edge time T2 (ms) 1 2.4 1.9 2 2.4 1.7 3 2.6 2.2 4 2.5 1.8 5 2.5 1.8 Figure 3 2.5 1.9

[0078] Example 3: The overdrive voltage is applied at the lead-out electrode of the upper substrate and the lower substrate of the liquid crystal display device provided in the embodiments of the present application by using a signal generator to test the response time. For example, an overdrive voltage of 9V is added for 1ms, and the subsequent voltage remains unchanged as the driving voltage with an amplitude of 6.0V. The test device shown in FIG. 3 is used to test the response time and the grey scale response time of the liquid crystal display device provided in the embodiments of the present application, and the test structure shown in Table 3 and Table 4 can be obtained. Sample No.

[0079] Table 3 Response time of liquid crystal display device under overdrive

[0080] Rising edge time Tl (ms) Falling edge time T2 (ms) Average 1 1.8 1.7 2 2.0 1.7 3 1.7 1.8 4 2.0 1.8 5 2.0 1.4 Sample No. 1.9 1.7

[0081] According to the data recorded in Table 3, by applying the overdrive voltage to the liquid crystal display device, the rising edge response time of the liquid crystal display device provided in the embodiments of the present application is less than or equal to 2ms, and the average time is 1.9ms, while the falling edge response time is less than 1.8ms, and the average time is 1.7ms, that is, the rising edge response time and the falling edge response time can both be less than or equal to 2ms.

[0082] Table 4 Grey scale response time of liquid crystal display device under overdrive

[0083] V-IPS-1 V-IPS-2 V-IPS-3 Average Average G to G 1.37 ms 1.45 ms 1.42 ms 1.42 ms Average rising time 0.96 ms 0.92 ms 1.08 ms 0.99 ms Average falling time 1.77 ms 1.98 ms 1.76 ms 1.84 ms Minimum value 0.6 ms 0.7 ms 0.6 ms 0.7 ms Maximum value 2.8 ms 2.9 ms 2.6 ms 2.8 ms Figure 2

[0084] According to the data recorded in Table 4, by applying the overdrive voltage to the liquid crystal display device for the grey scale response (Grey To Grey, GTG) time test, the GTG rising time and the GTG falling time of the liquid crystal display device provided in the embodiments of the present application are both less than 2ms, and the GTG average response time can reach 1.42ms.

[0085] From the above three examples, it can be seen that the liquid crystal display device provided in the embodiments of the present application can realize a single side edge response time less than 2ms by optimizing the structure of the electrode layer, optimizing the orientation mode of the liquid crystal molecules of the liquid crystal layer, and combining the optimization of the overdrive voltage. The GTG average response time after overdrive optimization can reach 1.42ms (less than 1.5ms). Therefore, the liquid crystal display device provided in the embodiments of the present application can significantly shorten the response time and improve the response speed.

[0086] ​In addition, the application further provides an electronic device, which comprises a device body and a liquid crystal display device 101 arranged on the device body. The liquid crystal display device 101 comprises a substrate layer 1, an electrode layer 2, a liquid crystal layer 3, a first polarizer 4 and a second polarizer 5. The electrode layer 2 comprises a pixel electrode 21 and a common electrode 22 arranged on a first surface 11 of the substrate layer 1 facing a light-out direction Z. The pixel electrode 21 comprises at least two first strip electrodes 211 arranged at intervals along a first direction X. The common electrode 22 comprises at least two second strip electrodes 221 arranged at intervals along the first direction X. The first strip electrodes 211 and the second strip electrodes 221 are alternately arranged at intervals. The width of the first strip electrodes 211 is the same as that of the second strip electrodes 221, and the first interval of the first strip electrodes 211 and the second strip electrodes 221 along the first direction X is the same as the width of the first strip electrodes 211. The liquid crystal layer 3 comprises a plurality of liquid crystal molecules 31, and is arranged on a side of the electrode layer 2 away from the substrate layer 1. The pixel electrode 21 and the common electrode 22 are used to form an electric field for controlling the rotation of the liquid crystal molecules 31. The first polarizer 4 is arranged on a side of the liquid crystal layer 3 away from the electrode layer 2. The second polarizer 5 is arranged on a side of the substrate layer 1 away from the electrode layer 2. The polarization direction of the first polarizer 4 is perpendicular to that of the second polarizer 5.

[0087] In the application, the device body can comprise mechanical structures, functional modules, input / output interfaces, control hardware and the like in the electronic device, and can perform operations and motion actions. For example, the electronic device can be a notebook computer, a mobile phone, a display, an instrument panel and the like.

[0088] In the application, the liquid crystal display device 101 can be arranged on the device body to display images, so as to realize human-computer interaction. For example, the substrate layer 1, the electrode layer 2, the liquid crystal layer 3, the first polarizer 4 and the second polarizer 5 and the like can be arranged in the liquid crystal display device 101.

[0089] In the application, the substrate layer 1 can provide a bearing and a setting basis for other components and the like in the liquid crystal display device 101. For example, the substrate layer 1 can be made of alkali-free glass (such as sodium-calcium glass), high molecular material and the like. The substrate layer 1 has high light transmittance, flatness and the like. The substrate layer 1 can provide a flat and transparent support platform for other film layers and the like.

[0090] In the embodiments of the present application, the electrode layer 2 can be used to generate a varying electric field in the liquid crystal display device 101, so as to drive the liquid crystal molecules 31 in the liquid crystal layer 3 to rotate by using the variation of the electric field. For example, a conductive thin film can be formed on the first surface 11 of the base layer 1 facing the light emitting direction Z (the transmission direction of the light in the liquid crystal display device 101) by using a physical vapor deposition or a chemical vapor deposition technology, and then the conductive thin film can be patterned by using a photoetching process (gluing, exposure, development, etching) or the like, so as to form the electrode layer 2 with a desired structure.

[0091] For example, as shown in FIG. 2, the electrode layer 2 can be configured to include a pixel electrode 21 and a common electrode 22. The pixel electrode 21 includes a plurality of first strip electrodes 211, which can be configured to have a rectangular structure. The plurality of first strip electrodes 211 are arranged on the first surface 11 in the first direction X with equal or approximately equal intervals. The common electrode 22 includes a plurality of second strip electrodes 221, which can also be configured to have a rectangular structure. The plurality of second strip electrodes 221 are also arranged on the first surface 11 in the first direction X with equal or approximately equal intervals. Figure 1 For example, as shown in FIG. 2, the electrode layer 2 can be configured to include a pixel electrode 21 and a common electrode 22. The pixel electrode 21 includes a plurality of first strip electrodes 211, which can be configured to have a rectangular structure. The plurality of first strip electrodes 211 are arranged on the first surface 11 in the first direction X with equal or approximately equal intervals. The common electrode 22 includes a plurality of second strip electrodes 221, which can also be configured to have a rectangular structure. The plurality of second strip electrodes 221 are also arranged on the first surface 11 in the first direction X with equal or approximately equal intervals.

[0092] For example, as shown in FIG. 2, the electrode layer 2 can be configured to include a pixel electrode 21 and a common electrode 22. The pixel electrode 21 includes a plurality of first strip electrodes 211, which can be configured to have a rectangular structure. The plurality of first strip electrodes 211 are arranged on the first surface 11 in the first direction X with equal or approximately equal intervals. The common electrode 22 includes a plurality of second strip electrodes 221, which can also be configured to have a rectangular structure. The plurality of second strip electrodes 221 are also arranged on the first surface 11 in the first direction X with equal or approximately equal intervals.

[0093] In the embodiments of the present application, the liquid crystal layer 3 can be arranged on the side of the electrode layer 2 away from the base layer 1. For example, a plurality of liquid crystal molecules 31 can be arranged on the side of the electrode layer 2 away from the base layer 1 in the same or approximately same posture along the light emitting direction Z. The liquid crystal molecules 31 can be nematic liquid crystals, smectic liquid crystals, or the like.

[0094] In the embodiments of the present application, the first polarizer 4 and the second polarizer 5 can be arranged in the liquid crystal display device 101 to adjust the light transmission direction of light through the first polarizer 4 and the second polarizer 5. For example, the first polarizer 4 and the second polarizer 5 can both be iodine polaroid, fuel polaroid or the like. The first polarizer 4 can be arranged on the light emission side of the liquid crystal display device 101 along the light emission direction Z, and the second polarizer 5 can be arranged on the light incidence side of the liquid crystal display device 101 along the light emission direction Z, that is, the first polarizer 4 is located on the side of the liquid crystal layer 3 away from the base layer 1, and the second polarizer 5 is located on the side of the base layer 1 away from the liquid crystal layer 3.

[0095] For example, the first polarizer 4 can be arranged such that the angle between the polarization direction of the first polarizer 4 and the first direction X is 45°, and the second polarizer 5 can be arranged such that the angle between the polarization direction of the second polarizer 5 and the first direction X is -45°. Alternatively, the first polarizer 4 can be arranged such that the angle between the polarization direction of the first polarizer 4 and the first direction X is -45°, and the second polarizer 5 can be arranged such that the angle between the polarization direction of the second polarizer 5 and the first direction X is 45°. In this way, the angle between the polarization direction of the first polarizer 4 and the polarization direction of the second polarizer 5 is 90°, that is, the polarization direction of the first polarizer 4 is perpendicular to the polarization direction of the second polarizer 5.

[0096] The electronic device provided by the embodiments of the present application can display images and the like through the liquid crystal display device 101 arranged on the device body, facilitating human-computer interaction. Moreover, the electrode layer 2 in the liquid crystal display device 101 is arranged in a structure including a plurality of first strip electrodes 211 and a plurality of second strip electrodes 221, and the plurality of first strip electrodes 211 and the plurality of second strip electrodes 221 are arranged alternately and spaced. By applying voltage to the plurality of first strip electrodes 211 and the plurality of second strip electrodes 221, a required electric field can be generated in the liquid crystal display device 101, so that the liquid crystal molecules 31 can be driven to rotate relative to the base layer 1 by the change of the electric field, so as to realize the change of light transmission rate and the display of images. Meanwhile, the width of the first strip electrode 211 and the width of the second strip electrode 221 are arranged to be the same, and the first pitch of the first strip electrode 211 and the second strip electrode 221 in the first direction X is arranged to be the same as the width of the first strip electrode 211, which is conducive to reducing the proportion of non-emitting areas in the liquid crystal display device 101, reducing the propagation distance of the electric field between adjacent first strip electrodes 211 and second strip electrodes 221, and increasing the horizontal electric field (parallel to the first direction X) in the liquid crystal display device 101 than the vertical electric field (parallel to the light emission direction Z), so as to significantly improve the response speed of the liquid crystal display device 101 without reducing the transmittance of the liquid crystal display device 101, and further improve the display performance of the electronic device.

[0097] In some possible embodiments of the present application, the device body comprises a first body and a second body connected by rotation, the liquid crystal display device 101 is arranged on at least one of the first body and the second body; and / or the long axis of the liquid crystal molecules 31 and the light output direction Z of the liquid crystal display device 101 have a pre-tilt angle, the pre-tilt angle is greater than 0° and less than or equal to 2°.

[0098] In the embodiments of the present application, the device body can be provided as a first body and a second body, and the first body and the second body are connected by rotation through a rotating shaft, a hinge or the like. For example, the first body can be rotated by 160°, 180°, 360° or the like relative to the second body by setting the rotating shaft, the hinge or the like. For example, the electronic device can include a folding screen mobile phone, a folding screen notebook computer, a scroll screen mobile phone, a sliding screen mobile phone and the like, which are devices with a flexible display screen that can be bent.

[0099] For example, the liquid crystal display device 101 can be arranged on one surface of the first body, such as being fixed on the first body by adhesion, clamping or the like. The same liquid crystal display device 101 can also be arranged on the same surface of the first body and the second body, and the liquid crystal display device 101 can be deformed by bending when the first body is rotated relative to the second body. In this way, after the first body and the second body are closed, the liquid crystal display device 101 is arranged between the opposite surfaces of the first body and the second body.

[0100] In the embodiments of the present application, as shown in ​ The liquid crystal molecules 31 used in the liquid crystal display device 101 can be arranged along the light output direction Z, that is, the long axis direction of the liquid crystal molecules 31 extends along the light output direction Z. In addition, the long axis direction of the liquid crystal molecules 31 and the light output direction Z can have a pre-tilt angle, that is, the long axis direction of the liquid crystal molecules 31 and the stacking direction of the base layer 1 and the electrode layer 2 have a certain angle.

[0101] For example, the pre-tilt angle between the long axis direction of the liquid crystal molecules 31 and the light output direction Z can be set to 0° to 2°. For example, the pre-tilt angle can be set to 0.05°, 0.08°, 0.1°, 0.13°, 0.16°, 2° or the like. The pre-tilt angle can be close to 0°, but not equal to 0°.

[0102] The electronic device provided by the embodiments of the present application can change the form of the electronic device by relatively rotating the first body and the second body, so as to facilitate the use and storage of the electronic device. The pre-tilt angle between the long axis of the liquid crystal molecules 31 and the light-out direction Z is greater than 0° and less than 2°, so that the liquid crystal molecules 31 are arranged in a nearly vertical manner on the side of the electrode layer 2 away from the base layer 1. In this way, in the case of generating an electric field through the electrode layer 2, the liquid crystal molecules 31 can be driven by a greater driving force in the first direction X due to the horizontal electric field being more than the vertical electric field, so that the liquid crystal molecules 31 can be quickly rotated from the out-of-plane direction (the light-out direction Z) to the in-plane direction (the first direction X), and the response speed of the liquid crystal display device 101 can be further improved.

[0103] The above is only the preferred embodiments of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent flow transformation using the content of the specification and the drawings, or direct or indirect application in other related technical fields, are also included in the patent protection scope of the present application. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, and any equivalent structure transformation using the content of the specification and the drawings, or direct or indirect application in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A liquid crystal display device, comprising: a substrate layer; an electrode layer comprising a pixel electrode and a common electrode disposed on a first surface of the substrate layer facing a light emitting direction, the pixel electrode comprising at least two first strip electrodes arranged in a first direction, the common electrode comprising at least two second strip electrodes arranged in the first direction, the first strip electrodes and the second strip electrodes being alternately arranged in sequence, the first strip electrodes and the second strip electrodes having a same width, and a first pitch of the first strip electrodes and the second strip electrodes in the first direction being the same as the width of the first strip electrodes; and a liquid crystal layer comprising a plurality of liquid crystal molecules, the liquid crystal layer being disposed on a side of the electrode layer away from the substrate layer, the pixel electrode and the common electrode being configured to form an electric field for controlling rotation of the liquid crystal molecules. 2.The liquid crystal display device of claim 1, wherein first ends of the at least two first strip electrodes are connected to form a first comb structure of the pixel electrode, second ends of the at least two second strip electrodes are connected to form a second comb structure of the common electrode, the pixel electrode and the common electrode have a second pitch in a second direction, the second pitch being the same as or different from the first pitch, and the first ends and the second ends are opposite ends in the second direction, the second direction being perpendicular to the first direction. 3.The liquid crystal display device of claim 1, wherein the width of the first strip electrodes is greater than or equal to 2.5 um and less than or equal to 3.5 um; and / or, a thickness of the liquid crystal layer is greater than or equal to 2.5 um and less than or equal to 3.5 um; and / or, a response speed of the liquid crystal molecules is less than or equal to 2 ms. 4.The liquid crystal display device of any one of claims 1 to 3, wherein the liquid crystal molecules have a pre-tilt angle between a long axis of the liquid crystal molecules and the light emitting direction of the liquid crystal display device, the pre-tilt angle being greater than 0° and less than or equal to 2°; and / or, the liquid crystal display device further comprises a first polarizer disposed on a side of the liquid crystal layer away from the substrate layer and a second polarizer disposed on a side of the substrate layer away from the liquid crystal layer, a polarization axis direction of one of the first polarizer and the second polarizer is set to -45°, and a polarization axis direction of the other of the first polarizer and the second polarizer is set to 45°. 5.The liquid crystal display device of claim 4, wherein in a process in which the pixel electrode and the common electrode form the electric field, the liquid crystal molecules rotate relative to the substrate layer to convert the liquid crystal molecules from a non-display state to a display state, in the display state, the long axis of the liquid crystal molecules satisfies a parallel relationship with the substrate layer. ​ ​ ​ ​ ​ ​ ​ ​ ​ 6. The liquid crystal display device according to claim 4, further comprising a first alignment layer disposed between the electrode layer and the liquid crystal layer, and a second alignment layer disposed on a side of the liquid crystal layer distal from the substrate layer, each of the liquid crystal molecules being arranged at the pre-tilt angle under the action of the first and second alignment layers.

7. The liquid crystal display device according to any one of claims 1 to 3, wherein the splay elastic constant and the bend elastic constant of the liquid crystal molecules are both greater than the twist elastic constant of the liquid crystal molecules.

8. The liquid crystal display device according to any one of claims 1 to 3, further comprising a passivation layer disposed on a side of the liquid crystal layer distal from the substrate layer, and a protective layer disposed on a side of the passivation layer distal from the liquid crystal layer.

9. An electronic device comprising a device body and a liquid crystal display device disposed on the device body, the liquid crystal display device comprising: a substrate layer; an electrode layer comprising at least two first strip electrodes and at least two second electrodes, the first strip electrodes and the second electrodes being arranged alternately and spaced apart on the substrate layer, the width of the first strip electrodes and the width of the second electrodes being the same along the arrangement direction of the first strip electrodes and the second electrodes, and the spacing distance between the first strip electrodes and the second electrodes being the same as the width of the first strip electrodes; a liquid crystal layer comprising at least two liquid crystal molecules, the liquid crystal molecules being disposed on a side of the electrode layer distal from the substrate layer, the first strip electrodes and the second electrodes being used to form an electric field for controlling the rotation of the liquid crystal molecules; a first polarizer disposed on a side of the liquid crystal layer distal from the electrode layer; and a second polarizer disposed on a side of the substrate layer distal from the electrode layer, the polarization direction of the first polarizer being perpendicular to the polarization direction of the second polarizer.

10. The electronic device according to claim 9, wherein the device body comprises a first body and a second body connected rotatably, the liquid crystal display device is disposed on at least one of the first body and the second body; and / or, the long axis of the liquid crystal molecules has a pre-tilt angle with the light-out direction of the liquid crystal display device, the pre-tilt angle being greater than 0° and less than or equal to 2°. ​ ​ ​ ​ ​ ​ ​

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