CN115004095B

CN115004095B - Mirror surface switching screen, manufacturing method thereof and display device

Info

Publication number: CN115004095B
Application number: CN202080003219.0A
Authority: CN
Inventors: 李文波
Original assignee: BOE Technology Group Co Ltd; Beijing BOE Technology Development Co Ltd
Current assignee: BOE Technology Group Co Ltd; Beijing BOE Technology Development Co Ltd
Priority date: 2020-12-04
Filing date: 2020-12-04
Publication date: 2023-11-03
Anticipated expiration: 2040-12-04
Also published as: CN115004095A; WO2022116162A1

Abstract

A mirror surface switching screen (10), a manufacturing method thereof and a display device, wherein the mirror surface switching screen (10) comprises: a first substrate (11); a second substrate (12); a first liquid crystal layer (15) located between the first substrate (11) and the second substrate (12); the first electrode layer (16) includes: at least two individual electrodes (161), and connection leads (162) coupled to the individual electrodes (161), respectively; the second electrode layer (17) comprises: a common electrode (171); the first electrode layer (16) and the second electrode layer (17) are respectively positioned on different substrates at two sides of the first liquid crystal layer (15); at the same time, an electric signal is applied to all or part of the individual electrodes (161) in the first electrode layer (16) and an electric signal is applied to the common electrode (171) to cause all or part of the mirror surface switching panel (10) to be in a light transmission mode or a mirror surface mode, and all or part of the mirror surface switching panel (10) is caused to be in the light transmission mode or the mirror surface mode by controlling the mirror surface switching panel (10) in a partitioned manner. The first electrode layer (16) is divided into at least two independent electrodes (161), so that the influence of the first electrode layer (16) on a touch signal is reduced, the signal-to-noise ratio of the touch signal is improved, and the touch effect is improved.

Description

Mirror surface switching screen, manufacturing method thereof and display device

Technical Field

The disclosure relates to the technical field of display, and in particular relates to a mirror surface switching screen, a manufacturing method thereof and a display device.

Background

With the continuous development of display technology, display devices have been widely used in various fields. The electronic photo frame can be adopted to display photos, compared with traditional paper photos, the electronic photo frame can be very convenient to replace photos needing to be displayed, and the electronic photo frame can also be used for switching photos at regular time, so that the electronic photo frame gradually replaces the paper photo frame.

In the related art, the mirror switching screen can be used for switching the electronic photo frame, however, due to the influence of the electrodes in the mirror switching screen, the signal-to-noise ratio of the touch signal in the mirror switching screen is low, and the touch effect is poor.

Disclosure of Invention

The mirror surface switching screen that this disclosure implementation provided, wherein includes:

a first substrate;

a second substrate disposed opposite to the first substrate;

a first liquid crystal layer between the first substrate and the second substrate;

a first electrode layer comprising: at least two independent electrodes, and connecting leads respectively coupled with the independent electrodes;

a second electrode layer comprising: a common electrode; the first electrode layer and the second electrode layer are respectively positioned on different substrates at two sides of the first liquid crystal layer;

The independent electrode and the common electrode are configured to drive liquid crystal molecules in the first liquid crystal layer to deflect under the control of an electric signal so as to enable the first liquid crystal layer to be in a first state or a second state; when the first liquid crystal layer is in a first state, light incident from one side of the second substrate is transmitted, so that the mirror surface switching screen is in a light transmission mode to realize a display function; when the first liquid crystal layer is in a second state, light incident from one side of the second substrate is reflected, so that the mirror surface switching screen is in a mirror surface mode to realize a mirror surface function;

at the same time, an electrical signal is applied to all or part of the individual electrodes in the first electrode layer and an electrical signal is applied to the common electrode in the second electrode layer so that all or part of the mirror switching screen is in the light-transmitting mode or the mirror mode.

Optionally, in an embodiment of the disclosure, the optical fiber further includes a first polarizing layer and a transflective layer with a polarizing effect;

the first polarizing layer is positioned on one side of the second substrate, which is away from the first substrate;

the transflective layer is positioned on a side of the first substrate facing away from the second substrate.

Optionally, in an embodiment of the disclosure, a touch electrode layer is further included and located between the second substrate and the first polarizing layer.

Optionally, in an embodiment of the disclosure, each of the individual electrodes in the first electrode layer is arranged in one or more columns along a first direction;

the independent electrodes are respectively coupled with one connecting lead at two sides along the second direction; the first direction and the second direction are intersected with each other.

Optionally, in an embodiment of the disclosure, a width, a length, and a material of each of the connection leads in the first electrode layer are the same; the mirror switching screen includes: a first side and a second side of the first substrate, the first side and the second side extending along the second direction and being disposed opposite to each other; each of the connecting leads extends to an edge of the first side edge;

the connecting lead includes: a straight line portion extending in the first direction, and a fold line portion connected to the straight line portion;

the longer the distance between the independent electrode and the first side edge is, the longer the length of the straight line part is, and the shorter the length of the broken line part is in the connecting lead wire coupled with the independent electrode.

Optionally, in an embodiment of the disclosure, each of the individual electrodes in the first electrode layer is uniform in shape and size.

Optionally, in an embodiment of the disclosure, the first electrode layer is located at a side of the first substrate where the transflective layer is disposed, the side being close to the first liquid crystal layer;

the second electrode layer is positioned on one side of the second substrate, which is provided with the first polarizing layer, close to the first liquid crystal layer.

Optionally, in an embodiment of the disclosure, the method further includes: the conductive frame sealing adhesive is positioned between the first substrate and the second substrate;

the conductive packaging adhesive surrounds the first liquid crystal layer;

the first electrode layer further includes: a first common electrode line;

the second electrode layer further includes: a second common electrode line coupled with the common electrode;

the first common electrode wire is coupled with the second common electrode wire through the conductive encapsulation glue.

Optionally, in an embodiment of the disclosure, the first common electrode line, the second common electrode line, and the conductive encapsulation glue are aligned with a center line;

the line width of the conductive packaging adhesive is smaller than that of the first common electrode line.

Optionally, in an embodiment of the disclosure, the mirror switching screen includes: a first side and a second side extending along a second direction and disposed opposite to each other;

The first common electrode wire surrounds each independent electrode, and two ends of the first common electrode wire extend to the edge of the first side edge;

the second electrode layer further includes: a connection portion extending in the second direction; the second common electrode line extends along a first direction, and is coupled with the common electrode through the connection part; the first direction and the second direction are intersected with each other.

Optionally, in an embodiment of the disclosure, two sides of the common electrode in the second direction are respectively coupled to one of the second common electrode lines.

Optionally, in an embodiment of the disclosure, the second common electrode line is coupled to the common electrode through at least two of the connection parts.

Optionally, in an embodiment of the disclosure, the touch electrode layer includes: a plurality of self-capacitance electrodes and a touch lead coupled with each self-capacitance electrode respectively;

the mirror switching screen includes: a first side and a second side extending along a second direction and disposed opposite to each other; each touch lead extends to the edge of the first side edge.

Optionally, in an embodiment of the disclosure, the self-capacitance electrode includes a plurality of convex portions and a plurality of concave portions;

The convex portions of the self-capacitance electrodes are fitted into the concave portions of the adjacent self-capacitance electrodes.

Optionally, in an embodiment of the disclosure, the touch lead has a bending portion;

the farther the self-capacitance electrode is from the first side, the fewer the number of bending parts in the touch lead to which the self-capacitance electrode is coupled.

Accordingly, the embodiment of the present disclosure further provides a display device, including: the display module and the mirror surface switching screen;

the mirror surface switching screen is positioned on one side of the light emitting surface of the display module;

wherein, the mirror surface switches over the screen, includes:

a first substrate;

a second substrate disposed opposite to the first substrate;

the independent electrode and the common electrode are configured to drive liquid crystal molecules in the first liquid crystal layer to deflect under the control of an electric signal so as to enable the first liquid crystal layer to be in a first state or a second state; when the first liquid crystal layer is in a first state, light incident from one side of the second substrate is transmitted, so that the mirror surface switching screen is in a light transmission mode, and light emitted by the display module passes through the mirror surface switching screen, so that the display device displays pictures; when the first liquid crystal layer is in a second state, light incident from one side of the second substrate is reflected, so that the mirror surface switching screen is in a mirror surface mode, and the display device displays a mirror surface;

At the same time, an electrical signal is applied to all or part of the individual electrodes in the first electrode layer and an electrical signal is applied to the common electrode in the second electrode layer, so that all or part of the display device displays a picture or a display mirror.

Optionally, in an embodiment of the disclosure, the mirror switching screen further includes: a first polarizing layer and a transflective layer having a polarizing effect; the first polarizing layer is positioned on one side of the second substrate, which is away from the first substrate; the transflective layer is positioned on one side of the first substrate away from the second substrate;

the display module includes: the liquid crystal display comprises a third substrate, a fourth substrate, a second liquid crystal layer, a second polarizing layer and a third polarizing layer, wherein the fourth substrate is positioned on one side of the third substrate close to the mirror surface switching screen, the second liquid crystal layer is positioned between the third substrate and the fourth substrate, the second polarizing layer is positioned on one side of the third substrate away from the fourth substrate, and the third polarizing layer is positioned on one side of the fourth substrate away from the third substrate;

the transmission axis direction of the second polarizing layer is perpendicular to the transmission axis direction of the third polarizing layer; the transmission axis direction of the third polarizing layer is parallel to the transmission axis direction of the transflective layer.

Correspondingly, the embodiment of the disclosure also provides a manufacturing method of any mirror surface switching screen, which comprises the following steps:

forming a pattern of a first electrode layer over a first substrate;

forming a first liquid crystal layer over the first electrode layer;

forming a pattern of a second electrode layer on the surface of one side of a second substrate, and forming a pattern of a touch electrode layer on the surface of the other side of the second substrate;

and aligning the first substrate and the second substrate.

Optionally, in an embodiment of the present disclosure, the forming a pattern of the second electrode layer on a surface of one side of the second substrate and forming a pattern of the touch electrode layer on a surface of the other side of the second substrate includes:

after forming the pattern of the second electrode layer on the surface of one side of the second substrate, carrying out an annealing crystallization process on the second electrode layer, turning over the second substrate, and forming the pattern of the touch electrode layer on the surface of the other side of the second substrate; or alternatively, the process may be performed,

and after forming the pattern of the touch electrode layer on the surface of one side of the second substrate, carrying out an annealing crystallization process on the touch electrode layer, overturning the second substrate, and forming the pattern of the second electrode layer on the surface of the other side of the second substrate.

Drawings

Fig. 1 is a schematic structural diagram of a mirror switching screen according to an embodiment of the present disclosure;

FIG. 2 is a schematic plan view of a first electrode layer according to an embodiment of the disclosure;

FIG. 3 is a schematic plan view of a second electrode layer according to an embodiment of the disclosure;

FIG. 4 is a schematic structural view of a transflective layer according to an embodiment of the present disclosure;

FIG. 5 is a schematic plan view of a first film layer and a second film layer in FIG. 4;

FIG. 6 is a schematic view of another planar structure of a first electrode layer according to an embodiment of the disclosure;

FIG. 7 is an enlarged partial schematic view of the dashed box W in FIG. 6;

fig. 8 is a schematic plan view of a touch electrode layer according to an embodiment of the disclosure;

FIG. 9 is a schematic diagram of another planar structure of a touch electrode layer according to an embodiment of the disclosure;

fig. 10 is a schematic structural diagram of a display device according to an embodiment of the disclosure;

FIG. 11 is a flow chart of a method of fabrication provided by an embodiment of the present disclosure;

FIG. 12 is a schematic electron microscope view of the second electrode layer before the annealing crystallization process;

fig. 13 is a schematic electron microscope view of the second electrode layer after the annealing crystallization process.

Detailed Description

Aiming at the problem of low signal-to-noise ratio of touch signals in a mirror switching screen in the related art, the embodiment of the disclosure provides a mirror switching screen, a manufacturing method thereof and a display device.

Specific embodiments of a mirror switching panel, a method for manufacturing the same, and a display device according to embodiments of the present invention are described in detail below with reference to the accompanying drawings. The thickness and shape of the various layers in the drawings are not to scale, and are intended to illustrate the invention.

The embodiment of the disclosure provides a mirror surface switching screen which can be applied to intelligent home scenes such as an electronic photo frame and an intelligent mirror, and the product can be at least suitable for private places, offices or hospitals and other places. The mirror surface switching screen is matched with the display for use, and is used for switching a certain area or the whole display area of the display into a mirror surface or a display surface under different scenes or different requirements.

Fig. 1 is a schematic structural diagram of a mirror switching screen according to an embodiment of the present disclosure, as shown in fig. 1, the mirror switching screen 10 includes:

a first substrate 11;

a second substrate 12 disposed opposite to the first substrate 11;

a first liquid crystal layer 15 between the first substrate 11 and the second substrate 12;

fig. 2 is a schematic plan view of a first electrode layer 16 according to an embodiment of the disclosure, and referring to fig. 2, the first electrode layer 16 includes: at least two independent electrodes 161, and connection leads 162 coupled to the respective independent electrodes 161;

Second electrode layer 17, fig. 3 is a schematic plan view of a second electrode layer in an embodiment of the disclosure, and referring to fig. 3, second electrode layer 17 includes: a common electrode 171; the first electrode layer 16 and the second electrode layer 17 are respectively positioned on different substrates at two sides of the first liquid crystal layer 15; that is, the first electrode layer 16 may be disposed over the first substrate 11, and the second electrode layer 17 may be disposed over the second substrate 12; alternatively, the first electrode layer 16 may be provided on the second electrode 12, and the second electrode layer 17 may be provided on the first substrate 11.

The independent electrode 161 and the common electrode 171 configured to drive liquid crystal molecules in the first liquid crystal layer 15 to deflect under control of an electric signal to place the first liquid crystal layer 15 in a first state or a second state; when the first liquid crystal layer 15 is in the first state, the light incident from one side of the second substrate 12 is transmitted, so that the mirror surface switching screen is in a light transmission mode to realize the display function; when the first liquid crystal layer 15 is in the second state, the light incident from the side of the second substrate 12 is reflected, so that the mirror surface switching screen is in a mirror surface mode to realize a mirror surface function;

at the same time, an electric signal is applied to all or part of the individual electrodes 161 in the first electrode layer 16 and an electric signal is applied to the common electrode 171 in the second electrode layer 17 to make all or part of the mirror switching screen in the light-transmitting mode or the mirror mode.

In the mirror surface switching screen provided by the embodiment of the disclosure, the first electrode layer is divided into at least two independent electrodes, and each independent electrode is led out through the connecting lead, so that the influence of the first electrode layer on a touch signal can be reduced, the signal to noise ratio of the touch signal is improved, the touch effect of the mirror surface switching screen is improved, and the mirror surface switching screen can be subjected to partition control, so that all or part of the mirror surface switching screen is in a light transmission mode or a mirror surface mode.

As shown in fig. 1, by applying an electric signal to the independent electrode 161 and the common electrode 171, the liquid crystal molecules in the first liquid crystal layer 15 can be driven to deflect, and the degree of deflection of the liquid crystal molecules can be controlled by controlling the magnitude of the applied electric signal.

With continued reference to fig. 1, the mirror switching screen provided in the embodiment of the present disclosure may further include: a first polarizing layer 13 and a transflective layer 14 having a polarizing effect; the first polarizing layer 13 is located on a side of the second substrate 12 facing away from the first substrate 11, and the transflective layer 14 is located on a side of the first substrate 11 facing away from the second substrate 12.

When the first liquid crystal layer 15 is in the first state, external light passes through the first polarizing layer 13 and becomes linear polarized light, and the polarization direction of the linear polarized light is changed after the linear polarized light passes through the first liquid crystal layer 15, so that the linear polarized light can pass through the transflective layer 14 and be absorbed by an object on one side of the transflective layer 14 away from the first liquid crystal layer 15, and the mirror surface switching screen is in a light transmission mode. When the display module is arranged on one side of the transparent and reflective layer 14, which is away from the first liquid crystal layer 15, the light emitted by the display module can pass through the transparent and reflective layer 14, the first liquid crystal layer 15 and the first polarizing layer 13 and then be emitted, and at this time, the mirror surface switching screen 10 does not reflect the ambient light, so that a user can watch the display picture, and the display function is realized.

When the first liquid crystal layer 15 is in the second state, the external light passes through the first polarizing layer 13 and becomes linear polarized light, and the polarization direction of the linear polarized light is changed after passing through the first liquid crystal layer 15, so that the linear polarized light is reflected after being directed to the reflective layer 14, and the mirror surface switching screen is in a mirror surface mode, and at this time, the mirror surface switching screen 10 can play a role of a mirror to realize a mirror surface function.

In addition, in the actual use process, the mirror surface switching screen 10 can display pictures in a part of the areas and can be used as mirrors in the other areas by applying different electric signals to the independent electrodes 161, so that the flexibility of the application scene of the mirror surface switching screen 10 is improved, and the user experience is improved.

In practice, the degree of deflection of the liquid crystal molecules in the first liquid crystal layer 15 may be determined according to the angle between the transmission axis direction of the first polarizing layer 13 and the transmission axis direction of the transflective layer 14. For example, the transmission axis direction of the first polarizing layer 13 and the transmission axis direction of the transflective layer 14 may be set to be perpendicular to each other; alternatively, the transmission axis direction of the first polarizing layer 13 and the transmission axis direction of the transflective layer 14 may be parallel to each other, and the angle between the transmission axis directions of the first polarizing layer 13 and the transflective layer 14 may be another value, which is not limited herein.

Fig. 4 is a schematic structural diagram of a transflective layer according to an embodiment of the present disclosure, as shown in fig. 4, the transflective layer may be formed by alternately stacking a plurality of first film layers 141 and a plurality of second film layers 142, in which an example is shown in which 3 first film layers 141 and 3 second film layers 142 are alternately stacked, and in practical application, the transflective layer may include more first film layers 141 and more second film layers 142, for example, the transflective layer may include about 800 first film layers 141 and about 800 second film layers 142, and the number of the first film layers 141 and the second film layers 142 is not limited herein. Fig. 5 is a schematic plan view of a first film layer and a second film layer in fig. 4, as shown in fig. 5, the first film layer 141 and the second film layer 142 have refractive index anisotropy, specifically, the refractive index of the first film layer 141 in the v1 direction is nx1, the refractive index of the first film layer in the v2 direction is ny1, the refractive index of the second film layer 142 in the v1 direction is nx2, the refractive index of the second film layer 142 in the v2 direction is ny2, and nx 1=nx 2, ny1 +.ny 2, and the first film layer 141 and the second film layer 142 are stacked alternately so that polarized light with a polarization direction parallel to the v1 direction is transmitted, and polarized light with a polarization direction parallel to the v2 is reflected, that is, the transmission axis direction of the transflective layer is parallel to the v1 direction.

Referring to fig. 1 and 5, when the first liquid crystal layer 15 is in the first state, external light passes through the first polarizing layer 13 and becomes linearly polarized light, and the polarization direction of the linearly polarized light is changed after passing through the first liquid crystal layer 15, for example, the polarization direction of the linearly polarized light becomes parallel to the v1 direction, so that the linearly polarized light can pass through the transflective layer 14, and the mirror switching screen is in a light transmission mode. When the first liquid crystal layer 15 is in the second state, the external light passes through the first polarizing layer 13 and becomes linear polarized light, and the polarization direction of the linear polarized light is changed after passing through the first liquid crystal layer 15, for example, the polarization direction of the linear polarized light becomes parallel to the v2 direction, so that the linear polarized light is reflected after being directed to the transflective layer 14, and the mirror switching screen is in a mirror mode.

Referring also to fig. 1, the mirror switching screen in the embodiment of the present disclosure may further include: the touch electrode layer 18 is located between the second substrate 12 and the first polarizing layer 13, and the touch electrode layer 18 is arranged between the second substrate 12 and the first polarizing layer 13, so that the first electrode layer 16 and the second electrode layer 17 can be prevented from shielding touch signals, and the first electrode layer 16 is divided into at least two independent electrodes 161, so that the influence of the first electrode layer 16 on the touch signals can be reduced, and the signal-to-noise ratio of the touch signals can be improved.

Alternatively, in the mirror switching screen provided in the embodiment of the present disclosure, as shown in fig. 2, the individual electrodes 161 in the first electrode layer 16 are arranged in one or more columns along the first direction F1, where in fig. 2, the individual electrodes 161 are illustrated as being arranged in one column along the first direction F1.

In a column of individual electrodes 161 arranged in the first direction F1, the individual electrodes 161 are respectively coupled to one connection lead 162 at both sides in the second direction F2; the first direction F1 and the second direction F2 intersect each other.

The individual electrodes 161 in the first electrode layer 16 are arranged in one or more columns along the first direction F1, and for one column of individual electrodes 161 arranged in the first direction F1, both sides of each individual electrode 161 in the second direction F2 can be coupled with the connection leads 162, so that the connection leads 162 can be led out, and both sides of each individual electrode 161 in the second direction F2 can be coupled with one connection lead 162, so that the voltage drop across the individual electrodes 161 can be more uniform.

In a specific implementation, in the mirror switching screen provided in the embodiment of the present disclosure, referring to fig. 2, the shapes and sizes of the individual electrodes 161 in the first electrode layer 16 are identical, that is, the first electrode layer 16 may be uniformly divided into at least two individual electrodes 161, and of course, the first electrode layer 16 may be divided according to actual needs, and the shapes and sizes of the individual electrodes 161 are not limited herein.

In practical applications, in the mirror switching screen provided in the embodiment of the present disclosure, fig. 6 is another schematic plan view of the first electrode layer in the embodiment of the present disclosure, and as shown in fig. 6, the resistances of the connection leads 162 in the first electrode layer 16 are equal, it should be noted that in the embodiment of the present disclosure, the equal resistances of the connection leads 162 means that the resistance differences of the connection leads 162 are within a certain range, that is, the resistances of the connection leads 162 are approximately equal. In this way, the voltage drop of the electric signal transmitted through the connection lead 162 can be made uniform, and the signal delay of the connection lead 162 can be reduced.

Optionally, in the mirror switching screen provided in the embodiment of the present disclosure, referring to fig. 6, the width, length and material of each connection lead 162 in the first electrode layer 16 are the same. It should be noted that in the embodiment of the present disclosure, the same width of each connection lead 162 means that the difference in width of each connection lead 162 is within a certain range, that is, the widths of the connection leads 162 are approximately equal. The equal length of each connection lead 162 means that the difference in length of each connection lead 162 is within a certain range, that is, the lengths of the connection leads 162 are approximately equal. Because the width of the connection leads 162 needs to be set within a certain range due to the limitation of the wiring space in the first electrode layer 16, it is easier to equalize the resistances of the connection leads 162 by setting the connection leads 162 to be equal in length.

Specifically, in the above-mentioned mirror switching screen provided in the embodiment of the present disclosure, as shown in fig. 6, the mirror switching screen includes: the first side L1 and the second side L2 of the first substrate extend along the second direction F2 and are oppositely arranged; each connecting lead 162 extends to an edge of the first side L1. Fig. 7 is a partially enlarged schematic view of the dashed line W in fig. 6, and referring to fig. 7, the mirror switching screen has a binding area at the edge of the first side L1, and a plurality of binding electrodes p are disposed in the binding area, and the binding electrodes p may be coupled with external devices such as a flexible circuit board, and the ends of the connection leads 162 are coupled with the binding electrodes p, so as to electrically connect the external devices with the connection leads 162.

The connection lead 162 includes: a straight line portion T1 extending in the first direction F1, and a fold line portion T2 connected to the straight line portion T1; the further the individual electrode 161 is from the first side L1, the longer the straight line portion T1 is, the shorter the length of the fold line portion T2 is in the connection lead 162 to which the individual electrode 161 is coupled. That is, by adjusting the length of the fold line portion T2, the lengths of the connection leads 162 can be equalized, and the equal resistance design of the connection leads 162 can be realized.

In a specific implementation, in the mirror switching panel provided in the embodiment of the present disclosure, as shown in fig. 1, the first electrode layer 16 is located on a side of the first substrate 11 where the transflective layer 14 is disposed, which is close to the first liquid crystal layer 15;

the second electrode layer 17 is located on a side of the second substrate 12 where the first polarizing layer 13 is disposed, which is close to the first liquid crystal layer 15.

The second electrode layer 17 is disposed on a side of the second substrate 12 close to the first liquid crystal layer 15, so that the second electrode layer 17 can be prevented from shielding the touch signal of the touch electrode layer 18, and the second electrode layer 17 and the touch electrode layer 18 can share the second substrate 12. The first electrode layer 16 is disposed on a side of the first substrate 11 near the first liquid crystal layer 15, and the first electrode layer 16 and the second electrode layer 17 may be disposed on both sides of the first liquid crystal layer 15, respectively, so as to form a vertical electric field to control the deflection of liquid crystal molecules in the first liquid crystal layer 15. And, the first electrode layer 16 is closely spaced from the second electrode layer 17, so that the common electrode in the second electrode layer 17 is conveniently coupled with the signal line in the first electrode layer 16.

In implementation, as shown in fig. 1, in the mirror switching screen provided in the embodiment of the present disclosure, the method may further include: a conductive frame sealing adhesive 19 located between the first substrate 11 and the second substrate 12; the conductive encapsulation glue 19 surrounds the first liquid crystal layer 15; the first liquid crystal layer 15 may be encapsulated by disposing a conductive encapsulation adhesive 19 between the first substrate 11 and the second substrate 12.

Referring also to fig. 2, the first electrode layer 16 further includes: a first common electrode line 163; referring also to fig. 3, the second electrode layer 17 further includes: a second common electrode line 172 coupled to the common electrode 171; the first common electrode line 163 is coupled to the second common electrode line 172 through the conductive encapsulation paste 19. In this way, an electrical signal can be applied to the common electrode 171 in the second electrode layer 17 through the first common electrode line 163 in the first electrode layer 16. Referring also to fig. 7, an end portion of the first common electrode line 163 is coupled to the bonding electrode p, so that an electric signal may be applied to the common electrode 171 and the independent electrode 161 through an external device such as a flexible circuit board to control the deflection of liquid crystal molecules in the first liquid crystal layer 15. In addition, in order to ensure that the first common electrode line 163 can be coupled with the second common electrode line 172, the front projection of the first common electrode line 163 on the first substrate 11 at least partially overlaps with the front projection of the second common electrode line 172 on the first substrate 11.

In practical applications, in the mirror switching screen provided in the embodiments of the present disclosure, as shown in fig. 2 and 3, the center lines of the first common electrode line 163, the second common electrode line 172 and the conductive packaging adhesive are aligned, so as to avoid a position error generated when the first substrate 11 and the second substrate 12 are aligned, which affects the connection performance of the first common electrode line 163 and the second common electrode line 172. In addition, the line width of the conductive encapsulation adhesive is smaller than that of the first common electrode line 163, so that the conductive encapsulation adhesive can be prevented from being extruded when the first substrate 11 and the second substrate 12 are paired, and the conductive encapsulation adhesive is prevented from exceeding the range of the first common electrode line 163. Alternatively, the line width of the first common electrode line 163 may be equal to the line width of the second common electrode line 172; alternatively, the line width of the first common electrode line 163 may be greater than the line width of the second common electrode line 172; alternatively, the line width of the first common electrode line 163 may be smaller than that of the second common electrode line 172, which is not limited herein.

In the foregoing mirror surface switching screen provided by the embodiment of the present disclosure, as shown in fig. 2, the mirror surface switching screen includes: a first side L1 and a second side L2 extending along a second direction F2 and disposed opposite to each other; the first direction F1 and the second direction F2 intersect each other; the first common electrode line 163 surrounds each of the individual electrodes 161, and both ends of the first common electrode line 163 extend to an edge of the first side L1. The first common electrode lines 163 are disposed to surround the individual electrodes 161, and thus, the first common electrode lines 163 do not occupy the display area of the mirror switching screen and do not affect the display effect of the mirror switching screen. Referring to fig. 7 at the same time, the ends of the first common electrode line 163 are extended to the first side L1, and the ends of the first common electrode line 163 may be coupled with the bonding electrode p. Referring also to fig. 3, in order to facilitate coupling of the first common electrode line 163 and the second common electrode line 172, the second common electrode line 172 may be disposed to correspond to the position of the first common electrode line 163.

As shown in fig. 3, the second electrode layer 17 may further include: a connection portion 173 extending in the second direction F2; the second common electrode line 172 extends along the first direction F1, and the second common electrode line 172 is coupled with the common electrode 171 through a connection 173. In the actual driving process, the electric signal is applied to the common electrode 171 through the first common electrode line in the first electrode layer, and the second common electrode line 172 plays a role of connection, and thus, the second common electrode line 172 may be disposed in a straight line extending in the first direction F1, i.e., the end portion of the second common electrode line 172 does not need to be bent into the bonding region.

In a specific implementation, in the mirror surface switching screen provided in the embodiment of the present disclosure, the second common electrode wire 172 is coupled to the common electrode 171 through at least two connection portions 173, so that the influence of the resistance of the second common electrode wire 172 on the common electrode signal is reduced, and the contact point between the first common electrode wire and the second common electrode wire can be increased, so that the contact yield of the first common electrode wire and the second common electrode wire is improved, and meanwhile, the contact impedance is reduced, and the electrical performance of the mirror surface switching screen is improved.

With continued reference to fig. 3, in the mirror switching screen provided by the embodiment of the disclosure, two sides of the common electrode 171 in the second direction F2 are respectively coupled to one second common electrode line 172. Therefore, the contact area of the first common electrode wire and the second common electrode wire can be increased, and the contact yield of the first common electrode wire and the second common electrode wire is improved.

In the embodiment of the present disclosure, as shown in fig. 2 and 3, each of the independent electrodes 161 and the common electrode 171 is located in a display area of the mirror switching screen, and the electrode lead 162, the first common electrode line 163, the second common electrode line 172, the connection portion 173, and the bonding electrode p are located in a non-display area of the mirror switching screen. In specific implementation, the first electrode layer 16 and the second electrode layer 17 may be made of transparent conductive materials, for example, indium Tin Oxide (ITO), or other transparent conductive materials, which are not limited herein. By arranging the independent electrodes 161, the electrode leads 162 and the first common electrode wires 163 in the same layer and with the same material, the same patterning process can be adopted in the manufacturing process, so that the manufacturing cost is saved. Similarly, the common electrode 171, the second common electrode line 172 and the connection portion 173 are arranged in the same layer and the same material, so that the manufacturing cost can be saved. In addition, in order to reduce interference to the touch signal, the common electrode may be connected to a ground line.

Optionally, in the foregoing mirror switching screen provided by the embodiment of the present disclosure, fig. 8 is a schematic plan view of a touch electrode layer in the embodiment of the present disclosure, and as shown in fig. 8, the touch electrode layer may include: a plurality of self-capacitance electrodes 181, and touch leads 182 respectively coupled to the respective capacitance electrodes 181;

the mirror surface switching screen includes: a first side L1 and a second side L2 extending along a second direction F2 and disposed opposite to each other; each touch lead 182 extends to an edge of the first side L1.

In the embodiment of the disclosure, the touch electrode layer includes a plurality of self-capacitance electrodes 181, and in practical application, when a finger touches the mirror surface switching screen, the capacitance value of the self-capacitance electrode 181 at the touch position changes, so that the touch position can be determined by detecting the capacitance values of the respective capacitance electrodes 181.

Fig. 9 is another schematic plan view of a touch electrode layer in an embodiment of the disclosure, and in order to illustrate a specific structure of the self-capacitance electrode, only a portion of the self-capacitance electrode in the touch electrode layer is used as an example in the drawing, and the number of the self-capacitance electrodes is not limited. In the mirror switching panel provided by the embodiment of the present disclosure, as shown in fig. 9, the self-capacitance electrode 181 includes a plurality of convex portions U1 and a plurality of concave portions U2; the convex parts U1 of the self-capacitance electrodes 181 are embedded into the concave parts U2 of the adjacent self-capacitance electrodes 181, so that the self-capacitance electrodes in the touch electrode layer can be more compact, touch blind areas of a mirror surface switching screen are avoided, and the space in the touch electrode layer can be more reasonably utilized. In addition, in order to avoid crosstalk between adjacent self-capacitance electrodes 181, the pitch between adjacent self-capacitance electrodes 181 may be set to 8 μm to 10 μm.

With continued reference to fig. 9, in the mirror switching screen provided by the embodiment of the present disclosure, the touch lead 182 has a bending portion Q; the further the self-capacitance electrode 181 is from the first side (i.e., the lower side in fig. 9), the fewer the number of bent portions Q in the touch lead 182 to which the self-capacitance electrode 181 is coupled. In this way, the lengths of the touch leads 182 may be substantially equal, so that the resistances of the touch leads 182 may be substantially equal, thereby reducing the signal delay of the touch leads 182 and improving the touch effect. It should be noted that, in fig. 9, the positions of the bending portions Q are only shown, and the number of the bending portions Q in each touch lead 182 is not limited to the shape and the specific number of the bending portions Q, and in practical application, the shape and the number of the bending portions Q may be set according to the actual layout space.

In the embodiment of the disclosure, the touch electrode layer is described by taking a self-capacitance structure as an example, and in a specific implementation, the touch electrode layer may also adopt a mutual capacitance structure, which is not limited herein.

Based on the same inventive concept, the embodiments of the present disclosure further provide a display device, and because the principle of solving the problem of the display device is similar to that of the above-mentioned mirror switching screen, the implementation of the display device may refer to the implementation of the above-mentioned mirror switching screen, and the repetition is omitted.

Fig. 10 is a schematic structural diagram of a display device according to an embodiment of the present disclosure, and as shown in fig. 10, the display device according to the embodiment of the present disclosure includes: a display module 20 and a mirror switching screen 10;

the mirror surface switching screen 10 is positioned on one side of the light emergent surface of the display module 20;

wherein, mirror surface switches screen includes:

a first substrate 11;

a second substrate 12 disposed opposite to the first substrate 11;

referring to fig. 2, the first electrode layer 16 includes: at least two independent electrodes 161, and connection leads 162 coupled to the respective independent electrodes 161;

referring to fig. 3, the second electrode layer 17 includes: a common electrode 171; the first electrode layer 16 and the second electrode layer 17 are respectively positioned on different substrates at two sides of the first liquid crystal layer 15;

the independent electrode 161 and the common electrode 171 configured to drive liquid crystal molecules in the first liquid crystal layer 15 to deflect under control of an electric signal to place the first liquid crystal layer 15 in a first state or a second state; when the first liquid crystal layer 15 is in the first state, the light incident from one side of the second substrate 12 is transmitted, so that the mirror surface switching screen 10 is in a light transmission mode, and the light emitted by the display module 20 passes through the mirror surface switching screen 10, so that the display device displays a picture; when the first liquid crystal layer 15 is in the second state, the light incident from the side of the second substrate 12 is reflected, so that the mirror switching screen 10 is in a mirror mode, and the display device displays a mirror;

At the same time, an electrical signal is applied to all or part of the individual electrodes 161 in the first electrode layer 16 and an electrical signal is applied to the common electrode 171 in the second electrode layer 17, so that all or part of the display device displays a picture or a display mirror.

In the display device provided by the embodiment of the disclosure, the first electrode layer in the mirror surface switching screen is divided into at least two independent electrodes, and each independent electrode is led out through the connecting lead, so that the influence of the first electrode layer on the touch signal can be reduced, the signal to noise ratio of the touch signal is improved, the touch effect of the display device is better, and the mirror surface switching screen can be subjected to partition control, so that all or part of the mirror surface switching screen is in a light transmission mode or a mirror surface mode, and all or part of the display picture or the display mirror surface of the display device is realized.

With continued reference to fig. 10, the mirror switching screen provided by the embodiment of the present disclosure may further include: a first polarizing layer 13 and a transflective layer 14 having a polarizing effect; the first polarizing layer 13 is located on a side of the second substrate 12 facing away from the first substrate 11, and the transflective layer 14 is located on a side of the first substrate 11 facing away from the second substrate 12.

In the practical application process, when the first liquid crystal layer 15 is in the first state, the external light passes through the first polarizing layer 13 and then becomes linear polarized light, and the polarization direction of the linear polarized light is changed after the linear polarized light passes through the first liquid crystal layer 15, so that the linear polarized light can pass through the transflective layer 14 and be absorbed by an object on one side of the transflective layer 14 away from the first liquid crystal layer 15, and the mirror surface switching screen 10 is in a light transmission mode. The light emitted from the display module 20 can pass through the transflective layer 14, the first liquid crystal layer 15 and the first polarizing layer 13 and then be emitted, and the mirror switching screen 10 does not reflect the ambient light, so that the user can watch the display screen. When the first liquid crystal layer 15 is in the second state, the external light passes through the first polarizing layer 13 and becomes linear polarized light, and the polarization direction of the linear polarized light is changed after passing through the first liquid crystal layer 15, so that the linear polarized light is reflected after being directed to the reflective layer 14, and the mirror surface switching screen 10 is in a mirror surface mode, and at this time, the mirror surface switching screen 10 can function as a mirror.

In the embodiment of the disclosure, the display module may be an organic light emitting diode display panel or a liquid crystal display panel, or may be other display panels, which is not limited herein.

Optionally, when the display module in the embodiment of the present disclosure is a liquid crystal display panel, as shown in fig. 10, the display module may include: a third substrate 21, a fourth substrate 22 positioned on the side of the third substrate 21 close to the mirror switching screen 10, a second liquid crystal layer 23 positioned between the third substrate 21 and the fourth substrate 22, a second polarizing layer 24 positioned on the side of the third substrate 21 away from the fourth substrate 22, and a third polarizing layer 25 positioned on the side of the fourth substrate 22 away from the third substrate 21;

the transmission axis direction of the second polarizing layer 24 is perpendicular to the transmission axis direction of the third polarizing layer 25; the transmission axis direction of the third polarizing layer 25 and the transmission axis direction of the transflective layer 14 are parallel to each other.

In specific implementation, referring to fig. 10, the display module may further include: in the display process, the liquid crystal molecules in the second liquid crystal layer 23 are controlled to deflect, so that the light emitted from the backlight source can pass through the second polarizing layer 24 and the third polarizing layer 25, and the transmission axis direction of the third polarizing layer 25 is parallel to the transmission axis direction of the transflective layer 14, so that the light passing through the third polarizing layer 15 can pass through the transflective layer 14, thereby realizing the display of the picture.

Based on the same inventive concept, the embodiments of the present disclosure further provide a method for manufacturing the above-mentioned mirror surface switching screen, and because the principle of the method for solving the problem is similar to that of the above-mentioned mirror surface switching screen, implementation of the method for manufacturing the mirror surface switching screen can be referred to implementation of the above-mentioned mirror surface switching screen, and repeated parts will not be repeated.

Fig. 11 is a flowchart of a manufacturing method provided by an embodiment of the present disclosure, where, as shown in fig. 11, the manufacturing method includes:

s301, referring to FIG. 1 at the same time, forming a pattern of a first electrode layer 16 on a first substrate 11;

s302, forming a first liquid crystal layer 15 over the first electrode layer 11;

s303, forming a pattern of a second electrode layer 17 on the surface of one side of the second substrate 12, and forming a pattern of a touch electrode layer 18 on the surface of the other side of the second substrate 12;

s304, the first substrate 11 and the second substrate 12 are subjected to box matching.

Specifically, in the step S301, the first electrode layer 16 may be made of a transparent conductive material, and the first electrode layer 16 may be patterned, so that the first electrode layer 16 includes at least two independent electrodes 161, specifically, a photoresist layer may be coated on the first electrode layer 16, a pattern of the photoresist layer may be obtained through an exposure and development process, and then the first electrode layer 16 may be etched to obtain a pattern of the first electrode layer 16. Before the step S301, the method may further include: a first alignment layer (not shown) is formed on the first substrate 11, and the first alignment layer includes a plurality of first alignment marks for performing alignment during patterning of the first electrode layer 16, and alignment during alignment of the first substrate 11 and the second substrate 12. After the step S301, and before the step S302, forming a plurality of spacers on the first substrate may be further included.

Before the step S303, the method may further include: a second alignment layer (not shown) is formed on the second substrate 12, and the second alignment layer includes a plurality of second alignment marks for aligning the second electrode layer 17 and the touch electrode layer 18 during patterning, and aligning the first substrate 11 and the second substrate 12 during alignment.

In a specific implementation, in order to ensure the light transmittance of the mirror switching screen, the first electrode layer 16, the second electrode layer 17 and the touch electrode layer 18 may be made of transparent conductive materials, and the first substrate 11 and the second substrate 12 may be transparent substrates. The patterning process of the second electrode layer 17 or the touch electrode layer 18 includes: forming a transparent conductive layer, forming a photoresist layer, performing an exposure and development process on the photoresist layer, and performing an etching process on the transparent conductive layer. In the process of forming the pattern of the touch electrode layer 18 on the surface of the second substrate 12 and then forming the second electrode layer 17 on the surface of the second substrate 12, the exposure and development process and the etching process are liable to affect the formed second electrode layer 17, and in the same way, if the touch electrode layer 18 is formed on the surface of the second substrate 12 and then forming the pattern of the second electrode layer 17 on the surface of the second substrate 12, the exposure and development process and the etching process are liable to affect the formed touch electrode layer 18.

Based on this, in the above manufacturing method provided in the embodiment of the present disclosure, the step S303 may include:

referring to fig. 1, after forming a pattern of the second electrode layer 17 on one surface of the second substrate 12, the second electrode layer 17 is subjected to an annealing crystallization process, the second substrate 12 is turned over, and a pattern of the touch electrode layer 18 is formed on the other surface of the second substrate 12. Before forming the pattern of the touch electrode layer 18, an annealing crystallization process is performed on the second electrode layer 17, and the performance of the second electrode layer 17 after the annealing crystallization process is more stable and is not easy to be etched, so that the influence on the second electrode layer 17 in the patterning process of the touch electrode layer 18 is avoided. Fig. 12 is a schematic electron microscope view of the second electrode layer before the annealing crystallization process, fig. 13 is a schematic electron microscope view of the second electrode layer after the annealing crystallization process, and comparing fig. 12 and 13, it can be seen that the second electrode layer is amorphous before the annealing crystallization process, has irregular surface morphology, smaller size grains (< 100 nm) and different sizes, and the second electrode layer is crystalline after the annealing crystallization process, has regular surface morphology, and has larger size grains (about 100 nm), and has more uniform size.

And the impedance of the second electrode layer after the annealing crystallization process is obviously reduced, so that the electrical property of the mirror surface switching screen can be improved. Table 1 shows the relationship between the resistance and the post-annealing crystallization of the second electrode layer, and as can be seen from table 1, the thicker the second electrode layer, the lower the resistance of the second electrode layer, and in the embodiment of the present disclosure, the thickness of the second electrode layer may be about 1350 angstroms.

TABLE 1 post-and-resistance relationship of the second electrode layer after the annealing crystallization process

Thickness of second electrode layer (angstrom)	Impedance of the second electrode layer (Ω/≡)
		200	468.2
400	64.6
		600	51.9
800	26.2
		1000	19.4
1300	15.4
		1500	13.0

Or after forming the pattern of the touch electrode layer 18 on the surface of one side of the second substrate 12, performing an annealing crystallization process on the touch electrode layer 18, overturning the second substrate 12, and forming the pattern of the second electrode layer 17 on the surface of the other side of the second substrate 12, so that the performance of the touch electrode layer 18 after the annealing crystallization process is more stable and is not easy to be etched, thereby avoiding the influence on the touch electrode layer 18 in the patterning process of the second electrode layer 17, and the specific principle is the same as the above principle and is not repeated here.

In a specific implementation, the manufacturing method provided by the embodiment of the disclosure may further include:

s305, forming a first polarizing layer 13 on one side of the second substrate 12 away from the first substrate 11;

s306, forming a transflective layer 14 on a side of the first substrate 11 facing away from the second substrate 12.

In the step S305, the fabricated first polarizing layer 13 may be attached to the side of the second substrate 12 facing away from the first substrate 11, or the first polarizing layer 13 may be formed on the side of the second substrate 12 facing away from the first substrate 11 by using a polarizing material, which is not limited herein.

In the step S306, the fabricated transflective layer 14 may be attached to the side of the first substrate 11 facing away from the second substrate 12, or the transflective layer 14 may be directly formed on the side of the first substrate 11 facing away from the second substrate 12, which is not limited herein.

In addition, in the actual process, the exposure accuracy of the exposure machine in the production line for manufacturing the first substrate is higher, but the exposure area is smaller, so that multiple splicing exposure is needed in the process of patterning the first electrode layer, multiple masks are needed, and the manufacturing cost is higher.

In the mirror surface switching screen, the manufacturing method thereof and the display device provided by the embodiment of the disclosure, the first electrode layer is divided into at least two independent electrodes, and the independent electrodes are led out through the connecting leads respectively, so that the influence of the first electrode layer on the touch signal can be reduced, the signal-to-noise ratio of the touch signal is improved, and the touch effect of the mirror surface switching screen is improved.

While the preferred embodiments of the present disclosure have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the disclosure.

It will be apparent to those skilled in the art that various modifications and variations can be made to the disclosed embodiments without departing from the spirit and scope of the disclosed embodiments. Thus, given that such modifications and variations of the disclosed embodiments fall within the scope of the claims of the present disclosure and their equivalents, the present disclosure is also intended to encompass such modifications and variations.

Claims

1. A mirror switching screen, comprising:

a first substrate;

a second substrate disposed opposite to the first substrate;

a second electrode layer comprising: a common electrode; the first electrode layer and the second electrode layer are respectively positioned on different substrates at two sides of the first liquid crystal layer; the independent electrode and the common electrode are configured to drive liquid crystal molecules in the first liquid crystal layer to deflect under the control of an electric signal so as to enable the first liquid crystal layer to be in a first state or a second state; when the first liquid crystal layer is in a first state, light incident from one side of the second substrate is transmitted, so that the mirror surface switching screen is in a light transmission mode to realize a display function; when the first liquid crystal layer is in a second state, light incident from one side of the second substrate is reflected, so that the mirror surface switching screen is in a mirror surface mode to realize a mirror surface function;

Applying an electrical signal to all or part of the individual electrodes in the first electrode layer and to the common electrode in the second electrode layer at the same time to make all or part of the mirror switching screen be in the light-transmitting mode or the mirror mode;

wherein each of the individual electrodes in the first electrode layer is arranged in one or more columns along a first direction;

in a row of the independent electrodes arranged in the first direction, the independent electrodes are respectively coupled with one connecting lead at two sides along the second direction; the first direction and the second direction are intersected with each other.

2. The mirror-switchable screen of claim 1, further comprising a first polarizing layer and a transflective layer having a polarizing effect;

3. The mirror switching screen of claim 2, further comprising a touch electrode layer between the second substrate and the first polarizing layer.

4. The mirror-switching screen of claim 1, wherein a width, a length, and a material of each of the connection leads in the first electrode layer are the same; wherein, the mirror surface switches over the screen and includes: a first side and a second side of the first substrate, the first side and the second side extending along the second direction and being disposed opposite to each other; each of the connecting leads extends to an edge of the first side edge;

5. The mirror switching screen of claim 1, wherein each of said individual electrodes in said first electrode layer are uniform in shape and size.

6. The mirror-switching screen of claim 2, wherein the first electrode layer is located on a side of the first substrate where the transflective layer is disposed, near the first liquid crystal layer;

7. The mirror switching screen of claim 6, further comprising: the conductive frame sealing adhesive is positioned between the first substrate and the second substrate;

the conductive frame sealing glue surrounds the first liquid crystal layer;

the first electrode layer further includes: a first common electrode line;

The first common electrode wire is coupled with the second common electrode wire through the conductive frame sealing glue.

8. The mirror switching screen of claim 7, wherein the first common electrode line, the second common electrode line, and the conductive frame seal are aligned with a center line;

the line width of the conductive frame sealing glue is smaller than that of the first common electrode line.

9. The mirror switching screen of claim 7, wherein the mirror switching screen comprises: a first side and a second side extending along a second direction and disposed opposite to each other;

10. The mirror switching screen of claim 9, wherein both sides of the common electrode in the second direction are coupled to one of the second common electrode lines, respectively.

11. The mirror switching screen of claim 9, wherein the second common electrode line is coupled to the common electrode through at least two of the connection portions.

12. The mirror switching screen of claim 3, wherein the touch electrode layer comprises: a plurality of self-capacitance electrodes and a touch lead coupled with each self-capacitance electrode respectively;

13. The mirror-switching screen of claim 12, wherein the self-capacitance electrode comprises a plurality of protrusions and a plurality of recesses;

14. The mirror-switching screen of claim 12, wherein the touch lead has a bend;

15. A display device, comprising: the display module and the mirror surface switching screen;

Wherein, the mirror surface switches over the screen, includes:

a first substrate;

a second substrate disposed opposite to the first substrate;

Applying an electrical signal to all or part of the individual electrodes in the first electrode layer and to the common electrode in the second electrode layer at the same time to cause all or part of the display device to display a picture or a display mirror;

16. The display device of claim 15, wherein the mirror switching screen further comprises: a first polarizing layer and a transflective layer having a polarizing effect; the first polarizing layer is positioned on one side of the second substrate, which is away from the first substrate; the transflective layer is positioned on one side of the first substrate away from the second substrate;

17. A method of making a mirror-switched panel as claimed in any one of claims 1 to 14, comprising:

forming a pattern of a first electrode layer over a first substrate;

forming a first liquid crystal layer over the first electrode layer;

and aligning the first substrate and the second substrate.

18. The manufacturing method according to claim 17, wherein the forming the pattern of the second electrode layer on the surface of the second substrate on one side and the forming the pattern of the touch electrode layer on the surface of the second substrate on the other side comprises: