WO2020024293A1

WO2020024293A1 - Flexible screen and manufacturing method therefor, and display apparatus

Info

Publication number: WO2020024293A1
Application number: PCT/CN2018/098670
Authority: WO
Inventors: 史文杰; 施文杰
Original assignee: 深圳市柔宇科技有限公司
Priority date: 2018-08-03
Filing date: 2018-08-03
Publication date: 2020-02-06
Also published as: CN112639924A

Abstract

Disclosed is a flexible screen (100). The flexible screen (100) comprises a first functional layer (10). The first functional layer (10) is provided with a deformation sensing member (21), and the deformation sensing member (21) is used to sense whether the flexible screen (100) is bent. The deformation sensing member (21) is disposed on the first functional layer (10), thereby facilitating a reduction in the thickness of the flexible screen (100). When the flexible screen (100) is manufactured, the deformation sensing member (21) and the first functional layer (10) can be completed in the same process, such that the manufacturing steps are reduced, thereby improving the product yield. Also provided are a manufacturing method for a flexible screen, and a display apparatus.

Description

Flexible screen, manufacturing method thereof and display device

Technical field

The invention relates to the field of display technology, in particular to a flexible screen, a manufacturing method thereof, and a display device.

Background technique

Flexible screens have attracted more and more attention due to their many advantages such as lightness, durability, and flexibility. Generally, additional deformation sensing elements are used to determine the degree of bending and feedback to the motherboard for corresponding screen display changes. However, the additional deformation sensing element increases the thickness of the flexible screen and affects the development of thinness and lightness.

Summary of the invention

In order to solve the above problems, an embodiment of the present invention discloses a flexible screen, a manufacturing method thereof, and a display device.

A flexible screen includes a first functional layer, and the first functional layer is provided with a deformation sensing member, and the deformation sensing member is used to sense whether the flexible screen is bent.

In one embodiment, the deformation sensing element includes a plurality of sensing portions, and the first functional layer further includes a plurality of connecting leads, and the connecting leads are electrically connected to the sensing portion.

In one embodiment, a head portion of one of the two adjacent sensing portions is connected to a tail portion of the adjacent sensing portion so as to connect the plurality of sensing portions to form a whole.

In one embodiment, the plurality of sensing portions are disposed at a distance from each other.

In one embodiment, the deformation sensing element includes a plurality of conductors disposed at intervals and electrically connected to each other.

In one embodiment, the flexible screen further includes a processing circuit, the processing circuit presets position information of each sensing section, and the processing circuit is configured to obtain the sensing information and position information of each sensing section according to the processing circuit. Bend information of the flexible screen.

In one embodiment, the flexible screen is a display screen, and the processing circuit adjusts a display effect of the flexible screen according to the bending information.

In one embodiment, an insulating layer is provided between the connection lead and the deformation sensing member, the insulation layer forms a first through hole, and the connection lead is electrically connected to the deformation sensing member through the first through hole. Sexual connection.

In one embodiment, the first functional layer further includes a protection layer, and the protection layer covers the insulation layer and the connection lead.

In one embodiment, the deformation sensing member is disposed along a first direction, and the first direction is perpendicular to a direction of a bending axis of the flexible screen.

In an embodiment, the flexible screen includes a first region and a second region, the first functional layer further includes a functional portion, the functional portion is disposed in the first region, and the deformation sensing member is located in the The second area.

In one embodiment, the functional unit includes a first touch pattern and a second touch pattern, and the first touch pattern and the second touch pattern are disposed in different directions from each other.

In one embodiment, the first touch pattern includes a plurality of first unit patterns and a plurality of bridge electrodes, the first unit patterns are spaced from each other, and two adjacent first unit patterns pass through the Bridge electrode connection.

In one embodiment, the bridging bridge and the deformation sensing element are formed by patterning a first conductive layer.

In one embodiment, the plurality of first unit patterns and the second touch pattern are formed by patterning a second conductive layer.

In one embodiment, the flexible screen further includes the second functional layer stacked with the first functional layer, and the deformation sensing element is located at a distance from the first functional layer away from the second functional layer. side.

In one embodiment, the second functional layer includes a substrate, a light emitting layer, and a packaging layer. The light emitting layer is disposed on one side of the substrate and the packaging layer, and the first functional layer is located on the package. A side of the layer remote from the light emitting layer.

A method for manufacturing a flexible screen includes forming a first functional layer of the flexible screen, the first functional layer is provided with a deformation sensing member, and the deformation sensing member is used to sense whether the flexible screen is bent.

In one embodiment, the "forming the first functional layer of the flexible screen" includes the following steps: forming the deformation sensing member, the deformation sensing member includes a plurality of sensing portions; and forming a plurality of connection leads, the The connecting lead is electrically connected to the corresponding sensing portion.

In one embodiment, among two adjacent sensing portions, a head portion of one sensing portion is connected to a tail portion of the adjacent sensing portion so as to connect the plurality of sensing portions into a whole; The parts are spaced apart along the first direction.

In one embodiment, after the "formation of the deformation sensing member" and before the "formation of a plurality of connection leads", the manufacturing method further includes the step of: forming on the deformation induction member An insulating layer, the insulating layer including a plurality of first through holes, the plurality of first through holes being located on the deformation sensing member,

The "forming a plurality of connection leads" further includes that the connection leads are electrically connected to the corresponding sensing portion through the first through hole.

In one embodiment, after the “forming a plurality of connection leads”, the “forming a first functional layer of the flexible screen” includes a step of forming a protective layer on the insulation layer and the connection leads.

In one embodiment, the "deformation sensing member forming the deformation sensing member" further includes: a bridge electrode forming a first touch pattern of the first functional layer, and the "forming a plurality of connection leads" further The method includes: a plurality of first unit patterns and a second touch pattern forming a first touch pattern of the first functional layer, and two adjacent first unit patterns are electrically connected through a bridge electrode.

In an embodiment, after the "formation of the deformation sensing member" and before the "formation of a plurality of connection leads",

The manufacturing method further includes the steps of: forming an insulating layer on the bridge electrode, the insulating layer including a plurality of second through holes, and the “multiple first A unit pattern and a second touch pattern, and adjacent two first unit patterns are electrically connected through a bridge electrode "further comprising: said bridge electrodes are electrically connected to the corresponding first unit pattern through the second through hole .

In an embodiment, before the "forming the first functional layer of the flexible screen", the manufacturing method further includes the step of: forming a second functional layer of the flexible screen, and the "forming the flexible screen" The “first functional layer” further includes: forming the first functional layer on the second functional layer.

A display device includes the flexible screen as described above.

The flexible screen provided by the present invention, a manufacturing method thereof, and a display device, because the deformation sensing member is provided on the first functional layer, is beneficial to reducing the thickness of the flexible screen. When manufacturing a flexible screen, the deformation sensing element and the first functional layer can be completed in the same process, reducing manufacturing steps, thereby improving product yield.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. Those of ordinary skill in the art can obtain other drawings according to the drawings without paying creative labor.

FIG. 1 is a schematic plan view of a flexible screen according to an embodiment of the present invention.

FIG. 2 is a schematic diagram when a part of the flexible screen shown in FIG. 1 is not bent.

FIG. 3 is a schematic diagram when a part of the flexible screen shown in FIG. 2 is bent.

FIG. 4 is a schematic partial cross-sectional view of the flexible screen shown in FIG. 1.

FIG. 5 is a schematic plan view of a flexible screen according to another embodiment of the present invention.

FIG. 6 is a schematic partial cross-sectional view of the flexible screen shown in FIG. 5.

FIG. 7 is a schematic structural diagram of a sensing portion of the flexible screen shown in FIG. 5.

FIG. 8 is a flowchart of a method for manufacturing a flexible screen according to an embodiment of the present invention.

FIG. 9 is a flowchart of step 102 shown in FIG. 8.

FIG. 10 is a schematic partial cross-sectional view of the structure obtained in step 1021 shown in FIG. 9.

FIG. 11 is a schematic plan view of the structure obtained in step 1021 shown in FIG. 9.

FIG. 12 is a schematic partial cross-sectional view of the structure obtained in step 1022 shown in FIG. 9.

FIG. 13 is a schematic plan view of the structure obtained in step 1022 shown in FIG. 9.

FIG. 14 is a schematic partial cross-sectional view of the structure obtained in step 1023 shown in FIG. 9.

FIG. 15 is a schematic plan view of the structure obtained in step 1023 shown in FIG. 9.

FIG. 16 is a top view of a display device according to an embodiment of the present invention.

detailed description

In the following, the technical solutions in the embodiments of the present invention will be clearly and completely described with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Please refer to FIG. 1, an embodiment of the present invention provides a flexible screen 100. The flexible screen 100 includes a first functional layer 10. The first functional layer 10 is provided with a deformation sensing member 21, and the deformation sensing member 21 is used to sense whether the flexible screen 100 is bent.

Since the deformation sensing member 21 is disposed on the first functional layer 10, it is beneficial to reduce the thickness of the flexible screen 100. When the flexible screen 100 is manufactured, the deformation sensing member 21 and the first functional layer 10 can be completed in the same process, reducing manufacturing steps, thereby improving product yield.

In a specific embodiment, the flexible screen 100 is a flexible touch display panel. The flexible screen 100 further includes a first region 101 and a second region 102. In this embodiment, the first area 101 is a display area, and the second area 102 is a non-display area. The second area 102 is provided around the edge of the first area 101. The second area 102 is usually provided with ink to block the flexible screen 100 from The internal structure of the area 102. The deformation sensing element 21 is distributed in the second region 102 so as to detect whether the flexible screen 100 is bent without affecting the function of the first region 101. In other embodiments, the flexible screen 100 may be a protective screen, a touch screen, a display screen, and / or a flexible screen with other functions, and the first area 101 is a touch area.

The deformation sensing member 21 is substantially bar-shaped. The deformation sensing member 21 extends in a first direction. In this embodiment, the flexible screen 100 has a bending axis, and the flexible screen 100 can be bent along the bending axis. The first direction is perpendicular to the bending axis of the flexible screen 100. In other embodiments, the extending direction of the deformation sensing element 21 is not limited. The deformation sensing member 21 includes a plurality of sensing portions 211 connected to each other. Among the two adjacent sensing portions 211, a head portion of one sensing portion 211 is connected to a tail portion of the adjacent sensing portion 211 so as to connect the plurality of sensing portions 211 as a whole. The first functional layer 10 further includes a plurality of connection leads 23. The plurality of connecting leads 23 are spaced apart from the deformation sensing element 21 and electrically connected to the deformation sensing element 21, so that the deformation sensing element 21 is divided into a plurality of sensing portions 211. Each sensing portion 211 is connected to a connecting lead 23. The sensing portion 211 is configured to sense whether or not the adjacent or located flexible screen 100 is bent and the degree of bending. In other words, one deformation sensing member 21 is divided into a plurality of sensing portions 211 along the first direction. When in use, a voltage is applied to two opposite ends of the deformation sensing element 21 so that the deformation sensing element 21 forms a voltage gradient. It can be understood that the lengths of the plurality of sensing portions 211 can be set to be equal to facilitate monitoring whether the flexible screen 100 corresponding to the sensing portion 211 is bent.

The flexible screen 100 further includes a processing circuit 30. The processing circuit 30 is distributed in the second area 102. The sensing portion 211 is electrically connected to the processing circuit 30 through a connection lead 23. The processing circuit 30 presets position information of the flexible screen 100 where each sensing unit 211 is located. The processing circuit 30 is configured to receive the sensing information from each sensing portion 211 of the deformation sensing element 21. The processing circuit 30 obtains the bending information of the flexible screen 100 according to the sensing information and the position information of each sensing unit 211. In this embodiment, the bending information includes a bending position and a bending degree of the flexible screen 100. The processing circuit 30 adjusts the display of the flexible screen 100 according to the bending information, for example, adjusts the color saturation, brightness, and resolution of the flexible screen 100. Since the display of the flexible screen 100 changes with the bending of the flexible screen 100, it is beneficial to improve the display effect of the flexible screen 100 and improve the user experience.

Please refer to FIG. 2, the flexible screen 100 has a neutral surface 110, the distance between the sensing portion 211 and the neutral surface 110 is d, the bending radius of the flexible screen 100 is r, and the ratio of d to r (d / r) Is strain ε. When d remains unchanged, the smaller r is, the larger ε is.

Please refer to FIG. 3, when the flexible screen 100 is bent, the sensing portion 211 at the bent portion of the flexible screen 100 is bent, and the resistance of the sensing portion 211 is R,

Among them, ρ is the resistivity, L is the length of the sensing portion 211, S is the cross-sectional area of the sensing portion 211, and the bending of the sensing portion 211 causes the length L to change and R to change. The potential changes. The larger ε, the greater the degree of bending, the larger the corresponding deformation, and the larger the change in R reflected. The sensing information is a resistance R or a potential of the sensing portion 211. The processing circuit 30 receives the sensing information of the sensing portion 211 in the bent portion, and the processing circuit 30 obtains the bending information of the flexible screen 100 according to the position information of each sensing portion 211. The processing circuit 30 controls and adjusts the display of the flexible screen 100 according to the bending information.

Please refer to FIG. 1 again. In this embodiment, the first functional layer 10 is a touch layer. The first functional layer 10 includes a functional section 12. The functional section 12 includes a first touch pattern 122 and a second touch pattern 124. The first touch pattern 122 and the second touch pattern 124 are located in the first region 101.

The first touch patterns 122 and the second touch patterns 124 are disposed in different directions from each other. For example, the first direction may be the X-axis direction, and the second direction may be the Y-axis direction crossing it, but is not limited thereto. The first touch pattern 122 and the second touch pattern 124 provide information of a Y coordinate and an X coordinate of a touch point. Specifically, when a user's finger or article touches the flexible screen 100, the capacitance change corresponding to an electrical connection position is transmitted to the process via the first touch pattern 122 and the second touch pattern 124 and the position detection circuit. Circuit 30. Then, the capacitance change is converted into an electric signal by the processing circuit 30 to identify the touch position. The first touch pattern 122 and the second touch pattern 124 are formed in the same layer.

The first touch pattern 122 includes a plurality of first unit patterns 1224 and a plurality of bridge electrodes 1226. The plurality of first unit patterns 1224 are disposed apart from each other. Adjacent two first unit patterns 1224 located in the same column are connected through a bridge electrode 1226 to detect a touch position. The second touch pattern 124 includes a plurality of second unit patterns 1242. The plurality of second unit patterns 1242 are arranged in an array. Two adjacent second unit patterns 1242 in the same row are connected to each other so as to be electrically connected to detect a touch position.

The material of the bridge electrode 1226 and the deformation sensing member 21 may be a metal material, such as a single layer or multiple layers of metals such as molybdenum, silver, aluminum, copper, palladium, gold, platinum, zinc, tin, and titanium, or alloys thereof. The first touch pattern 122 and the second touch pattern 124 can be made of indium tin oxide (ITO), indium zinc oxide (IZO), zinc oxide (ZnO), indium zinc tin oxide (IZTO), Cadmium tin oxide (CTO), poly (3,4-ethylenedioxythiophene) (PEDOT), carbon nanotubes (CNT), graphene, fine metal wires, etc., all of which can be used alone or two of them Two or more are used in combination, and indium tin oxide (ITO) can be preferably used.

The first functional layer 10 further includes a plurality of first leads 14 and a plurality of second leads 16. The first unit patterns 1224 in the same column are electrically connected to the processing circuit 30 through the first leads 14. The second unit patterns 1242 in the same row are electrically connected to the processing circuit 30 through the second lead 16. The plurality of first leads 14 and the plurality of second leads 16 are located in the second region 102.

In this embodiment, the plurality of bridge electrodes 1226 and the deformation sensing element 21 are formed by patterning a first conductive layer (not shown). The first unit pattern 1224, the first lead 14, the second unit pattern 1242, and the second lead 16 The connection lead 23 is formed by patterning a second conductive layer (not shown).

Please refer to FIGS. 1 and 4 in combination. The first functional layer 10 further includes an insulating layer 15 and a protective layer 17. The insulating layer 15 covers the bridge electrode 1226 and the deformation sensing element 21. An insulating layer 15 is provided between the bridge electrode 1226 and the first unit pattern 1224, so that the bridge electrode 1226 is electrically isolated from the first unit pattern 1224, thereby ensuring the accuracy and precision of detecting the touched position. An insulation layer 15 is provided between the deformation sensing element 21 and the connecting lead 23, so that the deformation sensing element 21 is electrically isolated from the connecting lead 23, and the accuracy and precision of the deformation sensing element 21 are ensured. The insulating layer 15 is provided with a plurality of first through holes 151 (see also FIG. 14) and a plurality of second through holes 153 (see FIG. 13). That is, a plurality of first through holes 151 are distributed in the second region 102. Each connection lead 23 is electrically connected to the deformation sensing element 21 through a first through hole 151. The plurality of second through holes 153 are distributed in the first region 101. Every two second through holes 153 are located on one bridge electrode 1226, and each second through hole 153 is disposed corresponding to an end of one bridge electrode 1226. In other words, one end of the bridge electrode 1226 is provided corresponding to one second through hole 153, so as to electrically connect two adjacent first unit patterns 1224. In one embodiment, the plurality of first through holes 151 are located above the deformation sensing element 21 and are arranged at equal intervals. The protective layer 17 covers the insulating layer 15, the first unit pattern 1224, the first lead 14, the second unit pattern 1242, the second lead 16 and the connection lead 23 to protect the first functional layer 10. The insulating layer 15 and the protective layer 17 may be made of an organic photoresist layer or an inorganic material such as SiNx or SiO2.

The flexible screen 100 further includes a second functional layer 40 that is stacked with the first functional layer 10. The second functional layer 40 is disposed on a side of the first functional layer 10 away from the protective layer 17. In this embodiment, the second functional layer 40 is a display functional layer. The second functional layer 40 includes a substrate 42, a light emitting layer 44, and a packaging layer 46. The light emitting layer 44 is provided between the substrate 42 and the encapsulation layer 46. The encapsulation layer 46 is disposed adjacent to the first functional layer 10.

In an embodiment, please refer to FIGS. 5 and 6, the deformation sensing element 21 a includes a plurality of sensing portions 211 a disposed at intervals. Specifically, the plurality of sensing portions 211a are disposed at intervals along a first direction, and the first direction is substantially perpendicular to a bending axis of the flexible screen. The sensing portion 211a is a bent structure. A first end portion of the sensing portion 211a is electrically connected to the processing circuit 30a through a connecting lead 23a, and a second end portion of the sensing portion 211a is electrically connected to the processing circuit 30a through a connecting lead 23a. Referring to FIG. 7, the sensing portion 211 a includes a plurality of electrically connected conductors 213, and the plurality of conductors 213 are disposed along a second square interval perpendicular to the first direction. When the flexible screen is bent, the length of the sensing portion 211a corresponding to the bending portion of the flexible screen changes. The resistance of the sensing portion 211a is proportional to the length. When the length changes, the resistance changes accordingly. By monitoring the change in resistance of each of the sensing portions 211a, it is determined whether the flexible screen is bent and the degree of bending. It can be understood that each sensing portion 211a can be formed by bending or not bending a conductor. The sensing portion 211a only needs to change its resistance due to a change in length when the position is bent; the sensing portion 211a The number can be two or more.

Referring to FIG. 8, an embodiment of the present invention further provides a method for manufacturing a flexible screen 100, which includes the following steps:

In step 101, a second functional layer 40 of the flexible screen 100 is formed.

In step 102, a first functional layer 10 is formed on the second functional layer 12, wherein the first functional layer 10 is provided with a deformation sensing member 21, and the deformation sensing member 21 is used to sense whether the flexible screen 100 is bent or not. fold.

Please refer to FIG. 9, step 102, which specifically includes the following steps:

Step 1021, referring to FIG. 10 and FIG. 11, a deformation sensing element 21 is formed on the second functional layer 40. In this embodiment, the deformation sensing element 21 is substantially a strip.

Step 1022, referring to FIG. 12 and FIG. 13, an insulating layer 15 is formed on the deformation sensing member 21. The insulating layer 15 is provided with a plurality of first through holes 151, and the plurality of first through holes 151 are located above the deformation sensing member 21. And set interval.

Step 1023, referring to FIG. 14 and FIG. 15, a plurality of connection leads 23 are formed on the insulating layer 15, and each connection lead 23 is electrically connected to the deformation sensing element 21 through a first through hole 151.

In step 1024, referring to FIG. 4 again, a protective layer 17 is formed on the connecting lead 23 and the insulating layer 15.

Referring to FIG. 11, step 1021 further includes: forming a plurality of bridge electrodes 1226 of the first touch pattern 122 on the second functional layer 12. In this embodiment, the flexible screen 100 includes a first region 101 and a second region 102. A plurality of bridge electrodes 1226 are formed in the first region 101, and a deformation sensing element 21 is formed in the second region 102.

Step 1021 further includes: coating a first conductive layer on the second functional layer 12 and etching the first conductive layer to pattern the first conductive layer to form a plurality of bridge electrodes 1226 and a deformation sensing member 21.

Referring to FIG. 13, step 1022 further includes: the insulating layer 15 covers the bridge electrode 1226, and the insulating layer 15 further forms a plurality of second through holes 153, and every two second through holes 153 are located on one bridge electrode 1226. And each second through hole 153 is provided corresponding to an end of one bridge electrode 1226.

Referring to FIG. 15, step 1023 further includes: forming a plurality of first unit patterns 1224 and second touch patterns 124 of the first touch pattern 122 on the insulating layer 15, and two adjacent first unit patterns 1224. It is electrically connected through the bridge electrode 1226.

Step 1023 further includes: forming a plurality of first leads 14 and a plurality of second leads 16 on the insulating layer 15. The first leads 14 are used to electrically connect the first touch pattern 122 and the processing circuit 30. The lead 16 is used for electrically connecting the second touch pattern 124 and the processing circuit 30. Specifically, the first unit patterns 1224 in the same column are electrically connected to the processing circuit 30 through the first leads 14. The second unit patterns 1242 in the same row are electrically connected to the processing circuit 30 through the second lead 16.

In this embodiment, in step 1023, the method further includes: coating a second conductive layer on the insulating layer 15 and etching the second conductive layer to pattern the second conductive layer to form a first contact. The control pattern 122, the second touch pattern 124, the plurality of first leads 14, the plurality of second leads 16, and the plurality of connection leads 23.

Step 1024 further includes: the protective layer 17 covers the first unit pattern 1224, the second touch pattern 124, the plurality of first leads 14 and the plurality of second leads 16.

In an embodiment, referring to FIG. 5 and FIG. 6, step 1021 further includes: the deformation sensing element 21 a includes a plurality of spaced apart sensing portions 211 a, and the plurality of sensing portions 211 a are spaced apart along a first direction, the first direction and The direction in which the flexible screen can be bent is substantially vertical. The sensing portion 211a is a bent structure. A first end portion of the sensing portion 211a is electrically connected to the processing circuit 30a through a connecting lead 23a, and a second end portion of the sensing portion 211a is electrically connected to the processing circuit 30a through a connecting lead 23a. The number of the deformation sensing members 21a may be two or more. Each of the deformation sensing members 21a includes a plurality of electrically connected conductors 211a, and the plurality of conductors 211a are disposed along a second square interval perpendicular to the first direction.

In one embodiment, a method for manufacturing a flexible screen includes forming a first functional layer of the flexible screen, and the first functional layer is provided with a deformation sensing member, and the deformation sensing member is configured to sense the flexibility. Whether the screen is bent.

In one embodiment, among two adjacent sensing portions, a head portion of one sensing portion is connected to a tail portion of the adjacent sensing portion so as to connect the plurality of sensing portions into a whole; or, the plurality of sensing portions The parts are spaced apart along the first direction.

In one embodiment, after the "formation of the deformation sensing member" and before the "formation of a plurality of connection leads", the manufacturing method further includes the step of: forming on the deformation induction member An insulating layer, the insulating layer comprising a plurality of first through holes, the plurality of first through holes being located on the deformation sensing member, and the "forming a plurality of connection leads" further comprising: the connection leads passing through the The first through hole is electrically connected to the corresponding sensing portion.

In one embodiment, after the "formation of the deformation induction member" and before the "formation of a plurality of connection leads", the manufacturing method further includes the step of forming an insulation on the bridge electrode. Layer, the insulating layer includes a plurality of second through-holes, the “a plurality of first unit patterns and a second touch pattern forming a first touch pattern of the first functional layer, two adjacent first “A unit pattern is electrically connected through a bridge electrode” further includes: the bridge electrode is electrically connected to a corresponding first unit pattern through the second through hole.

In an embodiment, before the "forming the first functional layer of the flexible screen", the manufacturing method further includes the step of: forming a second functional layer of the flexible screen,

The "forming the first functional layer of the flexible screen" further includes: forming the first functional layer on the second functional layer.

Referring to FIG. 16, an embodiment of the present invention further provides a display device 200. The display device 200 includes the flexible screen 100 described above.

The above is a preferred embodiment of the present invention. It should be noted that, for those of ordinary skill in the art, without departing from the principles of the present invention, several improvements and retouches can be made. It is the protection scope of the present invention.

Claims

A flexible screen is characterized in that the flexible screen includes a first functional layer, and the first functional layer is provided with a deformation sensing member, and the deformation sensing member is used to sense whether the flexible screen is bent.
The flexible screen according to claim 1, wherein the deformation sensing member comprises a plurality of sensing portions, the first functional layer further comprises a plurality of connecting leads, and the connecting leads are electrically connected to the sensing portions. .
The flexible screen according to claim 2, wherein, among two adjacent sensing portions, a head portion of one sensing portion is connected to a tail portion of the adjacent sensing portion so as to connect the plurality of sensing portions to form a whole. .
The flexible screen according to claim 2, wherein the plurality of sensing portions are disposed at intervals from each other.
The flexible screen according to claim 4, wherein the deformation sensing member comprises a plurality of conductors arranged at intervals and electrically connected to each other.
The flexible screen according to claim 2, characterized in that the flexible screen further comprises a processing circuit, the processing circuit presets the position information of each sensing section, and the processing circuit is used for determining the position of each sensing section. Sensing information and position information are used to obtain bending information of the flexible screen.
The flexible screen according to claim 6, wherein the flexible screen is a display screen, and the processing circuit adjusts a display effect of the flexible screen according to the bending information.
The flexible screen according to claim 2, wherein an insulation layer is provided between the connection lead and the deformation sensing member, the insulation layer forms a first through hole, and the connection lead passes through the first through The hole is electrically connected to the deformation sensing element.
The flexible screen according to claim 8, wherein the first functional layer further comprises a protective layer, and the protective layer covers the insulating layer and the connection lead.
The flexible screen according to claim 1, wherein the deformation sensing member is disposed along a first direction, and the first direction is perpendicular to a bending axis of the flexible screen.
The flexible screen according to claim 1, wherein the flexible screen includes a first region and a second region, the first functional layer further includes a functional portion, and the functional portion is disposed in the first region, The deformation sensing element is located in the second region.
The flexible screen according to claim 11, wherein the functional part comprises a first touch pattern and a second touch pattern, and the first touch pattern and the second touch pattern are different from each other along Direction setting.
The flexible screen according to claim 12, wherein the first touch pattern comprises a plurality of first unit patterns and a plurality of bridge electrodes, the first unit patterns are spaced apart from each other, and two adjacent units The first unit pattern is connected through the bridge electrode.
The flexible screen according to claim 13, wherein the bridging bridge and the deformation sensing element are formed by patterning a first conductive layer.
The flexible screen of claim 13, wherein the plurality of first unit patterns and the second touch pattern are formed by patterning a second conductive layer.
The flexible screen according to claim 1, wherein the flexible screen further comprises the second functional layer laminated with the first functional layer, and the deformation sensing member is located away from the first functional layer. One side of the second functional layer.
The flexible screen according to claim 16, wherein the second functional layer comprises a substrate, a light-emitting layer, and a packaging layer, and the light-emitting layer is provided on a side of the substrate and the packaging layer, and the The first functional layer is located on a side of the encapsulation layer remote from the light emitting layer.
A manufacturing method of a flexible screen, characterized in that the manufacturing method comprises: forming a first functional layer of the flexible screen, the first functional layer is provided with a deformation sensing member, and the deformation sensing member is used for sensing the Whether the flexible screen is bent.
The manufacturing method according to claim 18, wherein the "forming a first functional layer of the flexible screen" comprises the following steps:

Forming the deformation sensing member, the deformation sensing member including a plurality of sensing portions;

A plurality of connection leads are formed, and the connection leads are electrically connected to corresponding sensing portions.
The manufacturing method according to claim 19, wherein among the two adjacent sensing portions, a head portion of one sensing portion is connected to a tail portion of the adjacent sensing portion so as to connect the plurality of sensing portions to form a whole. Or, the plurality of sensing portions are disposed at intervals along the first direction.
The manufacturing method according to claim 19, wherein after the "formation of the deformation induction member" and before the "formation of a plurality of connection leads",

The manufacturing method further includes the step of forming an insulating layer on the deformation sensing member, the insulating layer including a plurality of first through holes, and the plurality of first through holes are located on the deformation sensing member,

The "forming a plurality of connection leads" further includes that the connection leads are electrically connected to the corresponding sensing portion through the first through hole.
The manufacturing method according to claim 21, wherein after the "forming a plurality of connection leads", the "forming a first functional layer of the flexible screen" includes a step of: A protective layer is formed on the connection leads.
The manufacturing method according to claim 19, wherein the "deformation sensing element forming the deformation sensing element" further comprises: a bridge electrode forming a first touch pattern of the first functional layer,

The “forming a plurality of connection leads” further includes: a plurality of first unit patterns and a second touch pattern forming a first touch pattern of the first functional layer, and adjacent two first unit patterns are bridged by The electrodes are electrically connected.
The manufacturing method according to claim 23, wherein after the "formation of the deformation induction member" and before the "formation of a plurality of connection leads",

The manufacturing method further includes the step of: forming an insulating layer on the bridge electrode, the insulating layer including a plurality of second through holes,

The “a plurality of first unit patterns and a second touch pattern forming a first touch pattern of the first functional layer, and adjacent two first unit patterns are electrically connected through a bridge electrode” further include: The bridge electrode is electrically connected to the corresponding first unit pattern through the second through hole.
The manufacturing method according to claim 19, wherein before the "forming a first functional layer of the flexible screen", the manufacturing method further comprises the step of: forming a second functional layer of the flexible screen,

The "forming the first functional layer of the flexible screen" further includes: forming the first functional layer on the second functional layer.
A display device, characterized in that the display device comprises a flexible screen according to any one of claims 1-17.