CN116626950A - Flexible sensing display devices and wearable devices - Google Patents

Abstract

The present application proposes a flexible sensing display device and a wearable device. The flexible sensing display device includes: a display line and a sensing line, and the display line includes a flexible conductive core wire, at least one conductive winding and at least one flexible light emitting element. The conductive winding wire is spirally wound on the outside of the flexible conductive core wire, the conductive winding wire and the flexible conductive core wire are insulated, the flexible light-emitting element is electrically connected to the flexible conductive core wire and the conductive winding wire respectively; the sensing wire is connected to the flexible conductive core wire . The flexible sensing display device proposed in this application is flexible and can also perform luminescent display.

Description

Flexible sensing display devices and wearable devices

technical field

The present disclosure relates to the technical field of sensors, in particular to a flexible sensor display device and a wearable device.

Background technique

Wearable devices are portable devices that can be worn directly on the human body. Wearable devices involve flexible sensing lines, which are flexible so that they can be adapted to the human body, so that users can wear them comfortably and carry them easily. The flexible sensing wires in the related art can collect information such as physical parameters and biological parameters, but the existing flexible sensing wires cannot perform luminous display while collecting information, which makes the application scenarios of the flexible sensing wires limited.

Contents of the invention

This application proposes a flexible sensing display device and a wearable device, which can also emit light and display on the basis of flexibility.

In a first aspect, a flexible sensing display device is provided, comprising:

The display wire includes a flexible conductive core wire, at least one conductive winding wire and at least one flexible light-emitting element, the conductive winding wire is spirally wound on the outside of the flexible conductive core wire, the conductive winding wire and the flexible conductive core wire are insulated, and the flexible light-emitting element is respectively Electrically connected with the flexible conductive core wire and the conductive winding wire;

The sensing wire is connected with the flexible conductive core wire.

In some embodiments, the flexible conductive core wire includes a first conductive core and a first insulating layer covered outside the first conductive core, and the conductive winding includes a second conductive core and a second insulating layer covered outside the second conductive core. The insulating layer, the flexible light-emitting element is connected with the first conductive core and the second conductive core.

In some embodiments, the flexible light-emitting element is an electroluminescent film, and the electroluminescent film is sandwiched between the first conductive core and the second conductive core.

In some embodiments, the electroluminescent film includes a substrate and electroluminescent particles, the electroluminescent particles are distributed in the substrate, and the substrate is adhered to a flexible conductive core wire and a conductive winding wire.

In some embodiments, the diameter of the flexible conductive core wire is larger than the diameter of the conductive winding wire.

In some embodiments, the number of conductive winding wires is multiple, the number of flexible light-emitting elements is multiple, and the multiple conductive winding wires are wound on the outside of the flexible conductive core wire in turn, and the multiple flexible light-emitting elements correspond to each other one by one. The plurality of conductive windings are electrically connected.

In some embodiments, the light waves emitted by at least two flexible light emitting elements among the plurality of flexible light emitting elements have different wavelengths.

In some embodiments, the sensing line includes at least one of the following:

Temperature sensing parts, humidity sensing parts, pressure sensing parts, stress sensing parts, biological information collection parts, and gas detection parts.

In some embodiments, the sensing wire includes an elastic core, a sensing layer, an electrical connection part and an encapsulation layer, the sensing layer is covered outside the elastic core, the electrical connection part connects the sensing layer and the flexible conductive core wire, and the encapsulation layer covers It is covered on the outside of the sensing layer and the side of the electrical connection part.

In the second aspect, the embodiment of the present application also provides a wearable device, including:

The flexible sensing display device provided in the first aspect;

The control chip is electrically connected with the flexible sensing display device.

In the flexible sensing display device and wearable device provided by the present application, by setting the display line and the sensing line, the flexible sensing display device can perform light-emitting display and information collection; by setting the flexible conductive core wire and winding the flexible conductive core wire The conductive winding wire is set so that the display wire is flexible; by setting the flexible light-emitting element to be electrically connected with the flexible conductive core wire and the conductive winding wire respectively, it is possible to control whether the flexible conductive core wire and the conductive winding wire are energized to control the flexible light-emitting element to perform glow.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the accompanying drawings that need to be used in the embodiments of the present application. Obviously, the accompanying drawings described below are only some embodiments of the present application. Those of ordinary skill in the art can also obtain other drawings based on these drawings without making creative efforts.

FIG. 1 is one of the structural schematic diagrams of a flexible sensing display device in an embodiment of the present application;

Fig. 2 is a schematic diagram of the cross-sectional structure along the A-A line shown in Fig. 1;

Fig. 3 is a schematic diagram of the cross-sectional structure along the B-B line shown in Fig. 1;

Fig. 4 is the second structural schematic diagram of the flexible sensing display device in an embodiment of the present application;

Fig. 5 is the third structural schematic diagram of the flexible sensing display device in an embodiment of the present application;

Fig. 6 is a schematic cross-sectional structure diagram along line C-C shown in Fig. 5;

Fig. 7 is a partial structural schematic diagram of a flexible sensing display device in an embodiment of the present application;

Fig. 8 is a partial electron microscope image of the flexible sensor display device in an embodiment of the present application;

Fig. 9 is a cross-sectional electron microscope image of the sensing line in an embodiment of the present application;

10 is one of the graphs of the strain value applied on the flexible sensing display device and the resistance change rate of the sensing layer in an embodiment of the present application;

11 is the second graph of the strain value applied on the flexible sensing display device and the resistance change rate of the sensing layer in an embodiment of the present application.

Label description:

1. Display wire; 11. Flexible conductive core wire; 111. First conductive core; 112. First insulating layer; 12. Conductive winding; 121. Second conductive core; 123. Second insulating layer; 13. Flexible lighting 131, base material; 132, electroluminescent particles; 2, sensing line; 21, elastic core; 22, sensing layer; 23, electrical connection part; 24, packaging layer.

Detailed ways

The characteristics and exemplary embodiments of various aspects of the application will be described in detail below. In order to make the purpose, technical solution and advantages of the application clearer, the application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only configured to explain the application, not to limit the application. It will be apparent to one skilled in the art that the present application may be practiced without some of these specific details. The following description of the embodiments is only to provide a better understanding of the present application by showing examples of the present application.

It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is a relationship between these entities or operations. There is no such actual relationship or order between them. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements of or also include elements inherent in such a process, method, article, or device. Without further limitations, an element defined by the statement "comprising..." does not exclude the presence of additional identical elements in the process, method, article or device that includes the element.

It should be understood that when describing the structure of a component, when a layer or a region is referred to as being "on" or "over" another layer or another region, it may mean being directly on another layer or another region, or Other layers or regions are also included between it and another layer or another region. And, if the part is turned over, the layer, one region, will be "below" or "beneath" the other layer, another region.

It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

Wearable devices are portable devices that can be worn directly on the human body. Wearable devices involve flexible sensing and display devices. The flexible sensing and display devices are flexible so that they can be adapted to the human body, so that users can wear them comfortably and carry them easily. The flexible sensing display device in the related art can collect information such as physical parameters and biological parameters, but the existing flexible sensing display device cannot perform light-emitting display while collecting information, which makes the application scenarios of the flexible sensing display device limited.

In order to solve the above problems, the present application proposes a flexible sensing display device and a wearable device. The flexible sensing display device according to the embodiments of the present application will be described in detail below with reference to the accompanying drawings.

As shown in Figure 1, a flexible sensing display device includes a display wire 1 and a sensing wire 2, the display wire 1 includes a flexible conductive core wire 11, at least one conductive winding 12 and at least one flexible light-emitting element 13, the conductive winding 12 is spirally wound on the outside of the flexible conductive core wire 11 , the flexible light-emitting element 13 is electrically connected to the flexible conductive core wire 11 and the conductive winding wire 12 respectively; the sensing wire 2 is connected to the flexible conductive core wire 11 .

Both the flexible conductive core wire 11 and the conductive winding wire 12 are flexible, so that the conductive winding wire 12 can be spirally wound outside the flexible conductive core wire 11, and the flexible conductive core wire 11 and the conductive winding wire 12 can be bent as required. The conductive winding wire 12 is wound outside the flexible conductive core wire 11 , so that the flexible conductive core wire 11 can serve as a support to support the conductive winding wire 12 . In the case of multiple conductive winding wires 12 , the multiple conductive winding wires 12 may be wound on the flexible conductive core wire 11 . The outside of the conductive winding wire 12 and/or the flexible conductive core wire 11 may be covered with an insulating material, so that the conductive winding wire 12 and the flexible conductive core wire 11 in contact with each other are insulated.

The flexible light-emitting element 13 is a bendable device capable of photoelectric conversion. The flexible light emitting element 13 can be configured as an organic light emitting diode (Organic Light Emitting Diode, OLED). Alternatively, the flexible light emitting element 13 may also be configured as a micro light emitting diode (MicroLightEmittingDiode, Micro-LED) or a quantum dot light emitting diode (Quantum LightEmittingDiode, QLED). The flexible light-emitting element 13 is electrically connected to the flexible conductive core wire 11 and the conductive winding wire 12 respectively, so that whether the flexible light-emitting element 13 is energized and the duration of the power-on time can be controlled through the flexible conductive core wire 11 and the conductive winding wire 12, so as to realize the light emission of the flexible light-emitting element 13 show.

The sensing line 2 is a flexible linear structure provided with sensing materials. One or more sensing structures can be arranged in the sensing line 2, so that the sensing line 2 can collect required physical information or biological information.

In the embodiment provided by this application, by setting the display line 1 and the sensing line 2, the flexible sensing display device can perform light-emitting display and information collection; by setting the flexible conductive core wire 11 and the conductive winding wire 12, so that the display wire 1 is flexible; by setting the flexible light-emitting element 13 to be electrically connected with the flexible conductive core wire 11 and the conductive winding wire 12 respectively, it is possible to control whether the flexible conductive core wire 11 and the conductive winding wire 12 are energized The flexible light emitting element 13 emits light.

2 and 3, in some embodiments, the flexible conductive core wire 11 includes a first conductive core 111 and a first insulating layer 112 covering the outside of the first conductive core 111, and the conductive winding 12 includes a second conductive The core 121 and the second insulating layer 123 covering the outside of the second conductive core 121 , the flexible light-emitting element 13 is connected with the first conductive core 111 and the second conductive core 121 .

As shown in Figure 2, the area where the flexible conductive core wire 11 is in contact with the conductive winding 12 is separated by the first insulating layer 112 and the second insulating layer 123, so that the area where the flexible conductive core wire 11 is in direct contact with the conductive winding 12 The first conductive core 111 and the second conductive core 121 may be insulated from each other. As shown in FIG. 3, the first insulating layer 112 has at least one first opening exposing the first conductive core 111, the second insulating layer 123 has at least one second opening exposing the second conductive core 121, and the flexible light-emitting element 13 and the exposed The first conductive core 111 in the first opening is connected to the second conductive core 121 exposed in the second opening.

Both the first conductive core 111 and the second conductive core 121 are made of conductive materials. For example: metal conductive materials, carbon fiber conductive materials, polymer conductive materials, etc. Optionally, the first conductive core 111 is a bundled conductive silver wire composed of a plurality of conductive fibers, the second conductive core 121 is a bundled conductive silver wire composed of a plurality of conductive fibers, the first insulating layer 112 and the second insulating layer 123 are all made of insulating materials. Optionally, both the first insulating layer 112 and the second insulating layer 123 are polyurethane resin.

In some embodiments, the flexible light-emitting element 13 is an electroluminescent film, and the electroluminescent film is sandwiched between the first conductive core 111 and the second conductive core 121 .

The electroluminescent film is a film layer prepared by using electroluminescent materials (thin-filmeletroluminescentmaterials). The opposite sides of the electroluminescent film are respectively connected to the first conductive core 111 and the second conductive core 121 , and under the action of the electric field generated by the first conductive core 111 and the second conductive core 121 , the electroluminescent film emits light waves. The electroluminescent film is flexible so that the electroluminescent film can be bent as needed.

In some embodiments, the electroluminescent film includes a substrate 131 and electroluminescent particles 132 , the electroluminescent particles 132 are distributed in the substrate 131 , and the flexible conductive core wire 11 and the conductive winding 12 are adhered to the substrate 131 .

The substrate 131 is used to carry the electroluminescent particles 132 and bond the flexible conductive core wire 11 and the conductive winding wire 12, thereby eliminating additional settings for connecting the electroluminescent film and the flexible conductive core wire 11, and connecting the electroluminescent film and the conductive wire. Conductive material for winding 12. The substrate 131 can be a transparent polymer material, so that the electroluminescent particles 132 can be uniformly dispersed in the substrate 131 . Optionally, the substrate 131 is polyurethane resin, and the electroluminescent particles 132 are zinc sulfide mixed in the polyurethane resin.

In some embodiments, the diameter of the flexible conductive core wire 11 is larger than that of the conductive winding wire 12 .

The diameter of the flexible conductive core wire 11 is larger than that of the conductive winding wire 12 , so that the flexible conductive core wire 11 has better supporting force than the conductive winding wire 12 . The diameter of the flexible conductive core wire 11 is smaller than the diameter of the conductive winding wire 12, so that the conductive winding wire 12 has better bendability than the flexible conductive core wire 11, and is more suitable for the conductive winding wire 12 to be wound around the flexible conductive core wire 11. .

In some embodiments, the thickness H3 of the first insulating layer 112 is the same as the thickness H4 of the second insulating layer 123, the diameter H1 of the first conductive core 111 is 100D-400D, and the diameter H2 of the second conductive core 121 is 40D-200D. . Optionally, the diameter H1 of the first conductive core 111 is 200D, and the diameter H2 of the second conductive core 121 is 70D.

Please refer to FIG. 4 , in some embodiments, the number of conductive windings 12 is multiple, and the number of flexible light-emitting elements 13 is multiple. A plurality of conductive winding wires 12 are alternately arranged along the length direction of the flexible conductive core wire 11 , and a plurality of flexible light-emitting elements 13 are electrically connected to the plurality of conductive winding wires 12 in one-to-one correspondence.

When there are multiple conductive winding wires 12, the multiple conductive winding wires 12 are wound on the flexible conductive core wire 11 from one end of the flexible conductive core wire 11, and the first conductive winding wire 12R in the multiple conductive winding wires 12 The flexible conductive core wire 11 is spirally wound to form first curved segments arranged at intervals along the length direction of the flexible conductive core wire 11 . The second conductive winding 12G among the plurality of conductive windings 12 is spirally wound on the flexible conductive core wire 11 to form a second curved segment arranged at intervals along the length direction of the flexible conductive core wire 11, and the second curved segment is located between two adjacent between the first curve segments. The third conductive winding 12B among the plurality of conductive windings 12 is spirally wound on the flexible conductive core wire 11 to form a third curved segment arranged at intervals along the length direction of the flexible conductive core wire 11, and the third curved segment is located adjacent to the first between the first curve segment and the second curve segment. The fourth conductive winding among the plurality of conductive windings 12 is spirally wound on the flexible conductive core wire 11 to form a fourth curved segment arranged at intervals along the length direction of the flexible conductive core wire 11, and the fourth curved segment is located adjacent to the first Between the curved segment and the third curved segment. If the plurality of conductive windings 12 also includes fifth conductive windings, sixth conductive windings, seventh conductive windings, etc., by analogy, the formation of conductive windings 12 is alternately arranged along the length direction of the flexible conductive core wire 11. , which will not be repeated here.

A plurality of flexible light-emitting elements 13 are electrically connected to a plurality of conductive windings 12 in one-to-one correspondence, so that by controlling whether each conductive winding 12 is energized, it is possible to control whether the flexible light-emitting elements 13 that are connected to the conductive windings 12 in one-to-one correspondence emit light. This enables the display line 1 to realize complicated display lighting.

In some embodiments, the light waves emitted by at least two flexible light emitting elements 13 among the plurality of flexible light emitting elements 13 have different wavelengths.

By setting the wavelengths of the light waves emitted by at least two flexible light emitting elements 13 to be different, it is possible to control whether the conductive winding 12 is energized to control the flexible light emitting elements 13 that can emit light waves of different wavelengths to emit light waves of different colors, so that the display line 1 Complex display lighting can be realized.

In some embodiments, the plurality of flexible light emitting elements 13 include a first light emitting element 13R capable of emitting light waves of a first color, a second light emitting element 13G capable of emitting light waves of a second color, and a second light emitting element 13G capable of emitting light waves of a third color. Three light emitting elements 13B. The plurality of conductive windings 12 include a first conductive winding 12R, a second conductive winding 12G, and a third conductive winding 12B. The first conductive winding 12R, the second conductive winding 12G and the third conductive winding 12B are alternately spirally wound on the flexible conductive core wire 11, the end of the first conductive winding 12R is connected with the first light-emitting element 13R, the second Ends of the second conductive winding 12G are connected to the second light-emitting element 13G, and ends of the third conductive winding 12B are connected to the third light-emitting element 13B. The first light emitting element 13R, the second light emitting element 13G and the third light emitting element 13B are arranged in sequence along the length direction of the flexible conductive core wire 11 .

Please refer to FIG. 5 , in another embodiment, the plurality of flexible light emitting elements 13 includes a plurality of first light emitting elements 13R, a plurality of second light emitting elements 13G and a plurality of third light emitting elements 13B. A plurality of first light-emitting elements 13R are arranged at intervals along the length direction of the flexible conductive core wire 11 and are respectively electrically connected to the same first conductive winding wire 12R. A plurality of second light-emitting elements 13G are arranged at intervals along the length direction of the flexible conductive core wire 11 and are respectively electrically connected to the same second conductive winding wire 12G. A plurality of third light-emitting elements 13B are arranged at intervals along the length direction of the flexible conductive core wire 11 and are respectively electrically connected to the same third conductive winding 12B. The arrangement order of the plurality of first light-emitting elements 13R, the plurality of second light-emitting elements 13G and the plurality of third light-emitting elements 13B along the length direction of the flexible conductive core wire 11 can be set according to needs in the field.

When the end-to-end connection of the flexible line and the display line 1 forms a ring, multiple first light-emitting elements 13R, multiple second light-emitting elements 13G, and multiple third light-emitting elements 13B are provided to realize multiple first light-emitting elements 13R , any one of the multiple second light-emitting elements 13G and the multiple third light-emitting elements 13B emits light at the same time, so that the ring-shaped flexible sensor display device emits light in a ring.

Optionally, the first light emitting element 13R is a red light emitting element that can emit red light, the second light emitting element 13G is a green light emitting element that can emit green light, and the third light emitting element 13B is a blue light emitting element that can emit blue light. The first light-emitting element 13R, the second light-emitting element 13G, and the third light-emitting element 13B can be set to have different light-emitting areas as required. Optionally, the light-emitting surfaces of the first light-emitting element 13R, the second light-emitting element 13G, and the third light-emitting element 13B are all rectangles with a length of 2 mm and a width of 1 mm. The space between adjacent flexible light-emitting elements 13 is 1 cm.

In some embodiments, the sensing line 2 includes at least one of the following:

Temperature sensing parts, humidity sensing parts, pressure sensing parts, stress sensing parts, biological information collection parts, and gas detection parts.

Those skilled in the art can determine which sensing elements are provided in the sensing line 2 according to the information to be collected by the flexible sensing display device. Exemplarily, the sensing line 2 includes a biological information collection part for collecting heart rate, and the biological information collection part includes a photoelectric sensor. The flexible light emitting part 13 emits light waves, and the light waves irradiate on the skin and reflect to the photoelectric sensor. The photoelectric sensor will receive The optical signal is converted into an electrical signal, and the heart rate information can be obtained by analyzing the electrical signal.

Please refer to FIG. 5, FIG. 6 and FIG. 7. In some embodiments, the sensing wire 2 includes an elastic core 21, a sensing layer 22, an electrical connection portion 23 and an encapsulation layer 24, and the sensing layer 22 is wrapped on the elastic core. 21 , the electrical connection part 23 connects the sensing layer 22 and the flexible conductive core wire 11 , and the encapsulation layer 24 covers the sensing layer 22 and the electrical connection part 23 outside.

The elastic core 21 is not only elastic, but also flexible, so that the elastic core 21 can be stretched and bent. Optionally, the elastic core 21 is made of elastic spandex yarn.

The sensing layer 22 is the main functional layer for signal collection. The sensing layer 22 has different materials and structures according to different information collected. Optionally, the sensing layer 22 is one or more of carbonaceous materials, MXene materials, and metal materials.

The electrical connection part 23 connects the sensing layer 22 and the flexible conductive core wire 11 , so as to supply power to the sensing layer 22 through the electrical connection part 23 . The electrical connection part 23 can be in the shape of a line, and those skilled in the art can set the length of the electrical connection part 23 according to the length of the sensing wire 2 required. The electrical connection part 23 can be connected to both ends of the first conductive core through fiber joints such as woven fabric knots, self-tightening knots, single-tie knots, and double-tie knots. The diameter of the electrical connection part 23 and the diameter of the elastic core 21 covering the sensing layer 22 can be consistent, so that the outer surface of the prepared sensing wire 2 is smooth.

The encapsulation layer 24 is made of an elastic, flexible, and insulating material, so that the encapsulation layer 24 can be stretched and bent along with the elastic core 21, and the encapsulation layer 24 can prevent the sensing layer 22 and the electrical connection portion 23 from communicating with the unnecessary The conductive structure is electrically connected. Optionally, the encapsulation layer 24 is made of polydimethylsiloxane (Polydimethylsiloxane, PDMS).

Exemplarily, the sensing line 2 includes a stress sensing element for collecting stress, and the stress sensing element is a sensing layer 22 made of carbon nanotubes. When the sensing line 2 is attached to the user's skin, the user makes different actions, the sensing layer 22 stretches or shrinks along with the skin, and the resistance of the carbon nanotubes changes, so that the changed electric current can be obtained from the sensing line 2. Signal, stress information can be obtained by analyzing the electrical signal.

In the second aspect, the embodiment of the present application also provides a wearable device, including: a control chip and the flexible sensing display device as provided in the first aspect; the control chip is electrically connected to the flexible sensing display device.

The driver chip may include a data transmission unit and a control unit, the data transmission unit is electrically connected to the induction line, the data transmission unit is configured to receive the electrical signal collected by the induction line; the control unit is connected to the data transmission unit, and the control unit is configured to process the data transmission unit Send the electrical signal, and control the display line 1 to light up and display according to the electrical signal.

In the case that the display line 1 has multiple flexible light emitting devices, the control unit is configured to control each flexible light emitting device to perform independent display according to the electrical signal.

In the wearable device provided by the embodiment of the present application, it has the relevant structure of the aforementioned flexible sensing display device, which can refer to the flexible sensing display device provided by the above-mentioned embodiments, and has all the beneficial effects of the aforementioned flexible sensing display device, here No longer.

In an embodiment, the wearable device is a textile, and the wearable device further includes a braided thread, which may be cotton thread, wool thread, or the like. The braided thread and the thread-like flexible sensing display device can be connected together by weaving, knitting, sewing and other methods.

Experimental example 1, preparation of display lines.

Provide a conductive silver wire with a diameter of 200D as the first conductive core, and coat 50 μm of polyurethane resin on the outside of the conductive silver wire to form a first insulating layer coated on the outside of the first conductive core, and prepare a flexible conductive core wire;

Provide a conductive silver wire with a diameter of 70D as the second conductive core, and coat 50 μm of polyurethane resin on the outside of the conductive silver wire to form a second insulating layer coated on the outside of the second conductive core, and prepare a conductive winding;

spirally wrap the conductive winding wire on the outside of the flexible conductive core wire;

Polyurethane resin and zinc sulfide (ZnS) powder are provided, and the polyurethane resin and zinc sulfide powder are mixed in a mass ratio of 2:1 to obtain an electroluminescent solution;

Coat the end of the conductive winding wire where the second conductive core is exposed, and use the viscosity of the polyurethane resin in the electroluminescent solution to paste the second conductive core of the conductive winding wire and the first conductive core of the flexible conductive core wire Together, a stacked structure of the second conductive core, the electroluminescent layer, and the first conductive core is formed, and a display line is prepared.

Please refer to FIG. 8 , which is an electron microscope image of the second conductive core spirally wound outside the flexible conductive core wire prepared in Example 1.

Experimental example 2, preparing a sensing line.

Get 0.12g of sodium dodecylbenzenesulfonate and dissolve and disperse it in 29.7mL of deionized water, then add 0.3g of multi-walled carbon nanotubes to the solution and mix to prepare a carbon nanotube (CNT) dipping solution;

Provide the spandex yarn whose diameter is 420D, place the spandex yarn in the carbon nanotube dipping solution for dipping and drying, and repeat three times;

Provide a conductive silver wire, cut the spandex yarn dipped with carbon nanotubes into 2cm long line segments, and use conductive silver paste to bond and cure the two ends of the line segment with the two ends of the conductive silver wire;

The polydimethylsiloxane was encapsulated on the outside of the spandex yarn, the cured conductive silver paste and the conductive silver wire to prepare the sensing wire.

Please refer to FIG. 9 , which is a cross-sectional electron micrograph of the sensing wire prepared in Example 2.

Experimental example 3, preparing a flexible sensor display device.

Processing the prepared display line and sensing line, so that the end of the first conductive core is exposed, and the conductive silver wire in the sensing line is exposed;

Knotting the exposed first conductive core and the exposed conductive silver wire into a woven knot, so that the exposed first conductive core and the exposed conductive silver wire are electrically connected, and a ring-shaped flexible sensor display device is prepared.

The following experiments were carried out using the flexible sensing display device prepared in Experimental Example 3:

Stretching the flexible sensing display device makes the stress of the sensing line change, and detects the resistance change of the sensing layer. As shown in FIG. 10 , the abscissa is the strain value of the sensing line, and the ordinate is the resistance change rate of the sensing layer. The strain value is the stretched length of the sensing wire divided by the initial length. The resistance change rate is divided by the resistance change value of the sensing layer divided by the initial resistance value.

It can be seen from Figure 10 that as the stress of the sensing line increases gradually, the resistance of the sensing layer increases gradually. Therefore, the flexible sensing display device prepared in Experimental Example 3 has good sensing performance when the stress variation of the sensing line is within 40%.

The reciprocating stretching and shrinking of the flexible sensing display device makes the stress of the sensing line increase and decrease alternately, and detects the change of the resistance of the sensing layer. As shown in FIG. 11 , the abscissa is time, the ordinate is the change rate of the resistance value of the sensing layer, and the strain value is marked in the dotted line box. The strain value is the initial length of the sensing wire divided by the stretched length. The resistance change rate is divided by the resistance change value of the sensing layer divided by the initial resistance value.

It can be seen from Figure 11 that under the alternating stress of the sensing line, the resistance value of the sensing layer can change stably in a cycle, so the flexible sensing display device prepared in Experimental Example 3 has good cycle stability in the sensing line .

According to the above embodiments of the present application, these embodiments do not exhaustively describe all the details, nor limit the application to specific embodiments only. Obviously many modifications and variations are possible in light of the above description. This description selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present application, so that those skilled in the art can make good use of the present application and its modifications based on the present application. This application is to be limited only by the claims, along with their full scope and equivalents.

Claims (10)

1. A flexible sensory display device, comprising:

the display wire comprises a flexible conductive core wire, at least one conductive winding and at least one flexible luminous element, wherein the conductive winding is spirally wound on the outer side of the flexible conductive core wire, the conductive winding and the flexible conductive core wire are arranged in an insulating manner, and the flexible luminous element is respectively and electrically connected with the flexible conductive core wire and the conductive winding;

and the sensing wire is connected with the flexible conductive core wire.

2. The flexible sensory display device of claim 1, wherein the flexible conductive core wire comprises a first conductive core and a first insulating layer coated outside the first conductive core, the conductive winding comprises a second conductive core and a second insulating layer coated outside the second conductive core, and the flexible light emitting element is connected with the first conductive core and the second conductive core.

3. The flexible sensory display device of claim 2, wherein the flexible light-emitting element is an electroluminescent film sandwiched between the first conductive core and the second conductive core.

4. A flexible sensory display device according to claim 3, wherein the electroluminescent film comprises a substrate and electroluminescent particles distributed within the substrate, the substrate adhering to the flexible conductive core and the conductive windings.

5. The flexible sensory display device of claim 1, wherein a diameter of the flexible conductive core wire is greater than a diameter of the conductive wire wrap.

6. The flexible sensor display device according to claim 3, wherein the number of the conductive wires is plural, the number of the flexible light emitting elements is plural, the plurality of the conductive wires are sequentially wound on the outer side of the flexible conductive core wire, and the plurality of the flexible light emitting elements are electrically connected with the plurality of the conductive wires in one-to-one correspondence.

7. A flexible sensory display device as defined in claim 3, wherein the wavelengths of light emitted by at least two of the plurality of flexible light emitting elements are different.

8. A flexible sensory display device as defined in claim 3, wherein the sensory line comprises at least one of:

temperature sensing element, humidity sensing element, pressure sensing element, stress sensing element, biological information acquisition element, and gas detection element.

9. The flexible sensor display device of claim 3, wherein the sensor wire comprises an elastic core, a sensor layer, an electrical connection portion and a packaging layer, the sensor layer is coated on the outer side of the elastic core, the electrical connection portion connects the sensor layer and the flexible conductive core wire, and the packaging layer is coated on the outer side of the sensor layer and the electrical connection portion.

10. A wearable device, comprising:

a flexible sensory display device as claimed in any one of claims 1 to 9;

and the control chip is electrically connected with the flexible sensing display device.