CN117672094A

CN117672094A - A directional sounding display panel display device and preparation method

Info

Publication number: CN117672094A
Application number: CN202311662372.6A
Authority: CN
Inventors: 邰迎喜; 臧远生; 杨杰; 许徐飞; 周如; 刘亚彬
Original assignee: BOE Technology Group Co Ltd; Hefei BOE Optoelectronics Technology Co Ltd
Current assignee: BOE Technology Group Co Ltd; Hefei BOE Optoelectronics Technology Co Ltd
Priority date: 2023-11-30
Filing date: 2023-11-30
Publication date: 2024-03-08

Abstract

The application discloses a directional sounding display panel, a display device and a preparation method, the frame of the directional sounding display panel can be reduced. Directional sounding display the panel includes: a display substrate; the first electrode is arranged on one side of the display substrate; the second electrode comprises a first electrode part, a second electrode part and a third electrode part, the first electrode part and the third electrode part are respectively arranged on different sides of the display substrate in the thickness direction, the second electrode part is arranged on one side of the first electrode, which is far away from the display substrate, and a cavity is formed between the first electrode and the second electrode part; the vibrating diaphragm is arranged on one side of the second electrode, which is far away from the display substrate, and comprises a first vibrating diaphragm part, a second vibrating diaphragm part and a third vibrating diaphragm part, wherein the first vibrating diaphragm part and the third vibrating diaphragm part are respectively arranged on different sides of the display substrate in the thickness direction, and the second vibrating diaphragm part is arranged on one side of the second electrode, which is far away from the display substrate; the diaphragm is used for vibrating under the drive of the first electrode and the second electrode to generate sound waves.

Description

A directional sounding display panel display device and preparation method

Technical Field

The application relates to the technical field of display, in particular to a directional sounding display panel, a display device and a preparation method.

Background

Currently, with the functional demands of users for privacy protection, anti-peeping display products are generated. The display panel with directional sound production can be obtained by combining the structure or the device with the display screen, sound waves can be transmitted in a certain direction range of the display panel, sound cannot be heard in other directions, and then the directional sound production and sound transmission are realized. However, the existing directional sounding display panel has the problem of wider frame, and is difficult to match with the technical development direction of the narrow frame of the display panel.

Disclosure of Invention

The embodiment of the application provides a directional sounding display panel, a display device and a preparation method, which can reduce the frame of the directional sounding display panel and improve the suitability of a narrow frame product for directional sounding and display.

In a first aspect of embodiments of the present application, there is provided a directional sounding display panel, comprising:

a display substrate;

a first electrode disposed on one side of the display substrate;

a second electrode including a first electrode portion, a second electrode portion, and a third electrode portion, the first electrode portion and the third electrode portion being respectively disposed on different sides of the display substrate in a thickness direction, the second electrode portion being disposed on a side of the first electrode away from the display substrate, a cavity being formed between the first electrode and the second electrode portion;

The vibrating diaphragm is arranged on one side, far away from the display substrate, of the second electrode, the vibrating diaphragm comprises a first vibrating diaphragm part, a second vibrating diaphragm part and a third vibrating diaphragm part, the first vibrating diaphragm part and the third vibrating diaphragm part are respectively arranged on different side surfaces of the display substrate in the thickness direction, and the second vibrating diaphragm part is arranged on one side, far away from the display substrate, of the second electrode part;

the vibrating diaphragm is used for vibrating under the drive of the first electrode and the second electrode so as to generate sound waves.

In some embodiments, the second electrode includes a fourth electrode portion disposed on a side of the display substrate facing away from the first electrode, the first electrode portion and the third electrode portion each being electrically connected to the fourth electrode portion; and/or the number of the groups of groups,

the vibrating diaphragm comprises a fourth vibrating diaphragm portion, the fourth vibrating diaphragm portion is arranged on one side, far away from the display substrate, of the fourth electrode portion, and the first vibrating diaphragm portion and the third vibrating diaphragm portion are connected with the fourth vibrating diaphragm portion.

In some embodiments, the first electrode portion, the second electrode portion, and the third electrode portion are an integral electrode layer; or alternatively, the first and second heat exchangers may be,

In the case where the second electrode includes the fourth electrode portion, the first electrode portion, the second electrode portion, the third electrode portion, and the fourth electrode portion are an integrated electrode layer;

and/or the number of the groups of groups,

the first vibrating diaphragm part, the second vibrating diaphragm part and the third vibrating diaphragm part are integrated film layers; or alternatively, the first and second heat exchangers may be,

under the condition that the vibrating diaphragm comprises the fourth vibrating diaphragm part, the first vibrating diaphragm part, the second vibrating diaphragm part, the third vibrating diaphragm part and the fourth vibrating diaphragm part are integrated film layers.

In some embodiments, the number of the fourth electrode parts is at least two, and a gap is formed between at least two of the fourth electrode parts; and/or the number of the groups of groups,

the number of the fourth vibrating diaphragm parts is at least two, and a gap is formed between at least two fourth vibrating diaphragm parts.

In some embodiments, the first electrode portion and the third electrode portion are respectively disposed on two non-driving sides opposite to each other of the display substrate, wherein a side surface of the display substrate, which is close to the driving circuit board in a binding connection, is a driving side, and other side surfaces of the display substrate except the driving side are the non-driving sides.

In some embodiments, the directional sound emitting display panel further comprises:

A base layer disposed between the display substrate and the first electrode;

a support column disposed between the first electrode and the second electrode portion;

the first insulating layer is arranged between the first electrode and the support column;

the first conductive structure is arranged between the first electrode and the first insulating layer, the first conductive structure is electrically connected with the first electrode, and the orthographic projection of the support column on the display substrate is not overlapped with the orthographic projection of the first conductive structure on the display substrate;

the second conductive structure is arranged between the second electrode and the display substrate and is electrically connected with the second electrode;

the second insulating layer is arranged between the second conductive structure and the display substrate;

the frame glue is arranged between the second insulating layer and the display substrate;

the frame glue is arranged on the side face of the basal layer in the thickness direction, and/or the frame glue is arranged on the side face of the display substrate in the thickness direction.

In some embodiments, a portion of the first electrode is disposed on a side of the base layer in a thickness direction; and/or the number of the groups of groups,

Part of the first electrode is arranged on the side surface of the display substrate in the thickness direction; and/or the number of the groups of groups,

part of the first electrode is arranged on one side of the display substrate far away from the second electrode part; and/or the number of the groups of groups,

a part of the basal layer is arranged on the side surface of the display substrate in the thickness direction; and/or the number of the groups of groups,

and part of the basal layer is arranged on one side of the display substrate far away from the second electrode part.

In some embodiments, the first conductive structure is disposed at a side of the display substrate in a thickness direction; and/or the number of the groups of groups,

the first conductive structure is arranged on the side surface of the substrate layer in the thickness direction; and/or the number of the groups of groups,

the first conductive structure is arranged on one side of the display substrate, which is away from the second electrode part; and/or the number of the groups of groups,

part of the first insulating layer is arranged on the side surface of the display substrate in the thickness direction; and/or the number of the groups of groups,

part of the first insulating layer is arranged on one side of the display substrate, which is away from the second electrode part; and/or the number of the groups of groups,

the second conductive structure is arranged on the side surface of the display substrate in the thickness direction and is connected with the first electrode part and the third electrode part; and/or the number of the groups of groups,

In the case that the second electrode includes the fourth electrode portion, the second conductive structure is disposed on a side of the display substrate away from the first electrode, and the second conductive structure is connected with the fourth electrode portion.

In some embodiments, when the second electrode includes the fourth electrode portion, a portion of the second insulating layer is disposed between the first electrode portion and a sidewall of the display substrate, a portion of the second insulating layer is disposed between the third electrode portion and a sidewall of the display substrate, and a portion of the second insulating layer is disposed between the fourth electrode portion and a backside of the display substrate, wherein the sidewall of the display substrate is a side surface in a thickness direction, and the backside of the display substrate is a side of the display substrate facing away from the first electrode;

and part of the frame glue is arranged between the second insulating layer and the side wall of the display substrate, and part of the frame glue is arranged between the second insulating layer and the back side of the display panel.

In some embodiments, the directional sounding display panel further comprises:

the sealant is arranged between the second insulating layer and the display substrate;

The sealant is connected with the frame glue in the thickness direction of the display substrate; and/or the number of the groups of groups,

in the case where the second electrode includes the fourth electrode portion, the sealant is disposed between the fourth electrode portion and the back side of the display substrate, and the sealant and the frame sealant are connected in a direction perpendicular to the thickness direction of the display substrate. In some embodiments, where the diaphragm includes the fourth diaphragm portion,

the orthographic projection of the first conductive structure on the display substrate falls into the orthographic projection of the fourth vibrating diaphragm part on the display substrate; and/or the number of the groups of groups,

orthographic projection of the first conductive structure on the display substrate covers orthographic projection of part of the frame glue on the display substrate; and/or the number of the groups of groups,

orthographic projection of the first conductive structure on the display substrate covers orthographic projection of part of the sealant on the display substrate; and/or the number of the groups of groups,

the number of the support columns is multiple, and orthographic projection of the fourth vibrating diaphragm part on the display substrate covers orthographic projection of part of the support columns on the display substrate.

In some embodiments, the support posts have a dimension in the thickness direction of the display substrate that is less than the largest dimension of the cavities 301 in the thickness direction H; and/or the number of the groups of groups,

One end of the frame glue is connected with one side surface of the second electrode part, which is close to the display substrate; and/or the number of the groups of groups,

one end of the second insulating layer is connected with one side surface of the second electrode part, which is close to the display substrate; and/or the number of the groups of groups,

the first insulating layer wraps one side of the first conductive structure away from the first electrode and the side surface of the first conductive structure in the thickness direction; and/or the number of the groups of groups,

the first insulating layer is connected with the frame glue and the sealant.

In a second aspect of embodiments of the present application, there is provided a directional sound emission display device including:

the directional sound emitting display panel of the first aspect.

In a third aspect of embodiments of the present application, a method for preparing a directional sounding display panel according to the first aspect is provided, where the method includes:

a second electrode is arranged on one side of the vibrating diaphragm, and a first electrode is arranged on one side of the display substrate, wherein the vibrating diaphragm comprises a first vibrating diaphragm part, a second vibrating diaphragm part and a third vibrating diaphragm part, the second vibrating diaphragm part is connected between the first vibrating diaphragm part and the third vibrating diaphragm part, the second electrode comprises a first electrode part, a second electrode part and a third electrode part, and the second electrode part is connected between the first electrode part and the third electrode part;

The vibrating diaphragm provided with the second electrode is pasted with the display substrate frame provided with the first electrode, so that the first electrode part and the third electrode part are respectively arranged on different sides of the display substrate in the thickness direction, the second electrode part is arranged on one side of the first electrode, which is far away from the display substrate, a cavity is formed between the first electrode part and the second electrode part, the vibrating diaphragm is arranged on one side of the second electrode, which is far away from the display substrate, the first vibrating diaphragm part and the third vibrating diaphragm part are respectively arranged on different sides of the display substrate in the thickness direction, the second vibrating diaphragm part is arranged on one side of the second electrode part, which is far away from the display substrate, and the vibrating diaphragm is used for vibrating under the driving of the first electrode and the second electrode so as to generate sound waves.

In some embodiments, after the second electrode is disposed on one side of the diaphragm, the method further includes:

a second conductive structure, a second insulating layer and frame glue are sequentially arranged on one side, far away from the vibrating diaphragm, of the first electrode part and the third electrode part respectively;

or alternatively, the first and second heat exchangers may be,

in the case that the second electrode includes a fourth electrode portion, the second conductive structure and the second insulating layer are sequentially disposed on a side, away from the diaphragm, of the fourth electrode portion, and the frame glue is disposed on the first electrode portion, the third electrode portion, and a portion of the fourth electrode portion;

After the diaphragm provided with the second electrode and the display substrate provided with the first electrode are pasted, the method further comprises the steps of:

and filling sealant in a gap between the display substrate and the frame glue.

In a fourth aspect of embodiments of the present application, a method for preparing a directional sounding display panel according to the first aspect is provided, where the method includes:

a first electrode is arranged on one side of the display substrate;

the second electrode is arranged on one side, away from the display substrate, of the first electrode and on the side surface, in the thickness direction, of the display substrate respectively, wherein the second electrode comprises a first electrode part, a second electrode part and a third electrode part, the second electrode part is connected between the first electrode part and the third electrode part, and a cavity is formed between the first electrode part and the second electrode part;

one side of the second electrode far away from the display substrate is provided with a vibrating diaphragm, wherein the vibrating diaphragm comprises a first vibrating diaphragm part, a second vibrating diaphragm part and a third vibrating diaphragm part, the second vibrating diaphragm part is connected between the first vibrating diaphragm part and the third vibrating diaphragm part, and the vibrating diaphragm is used for vibrating under the driving of the first electrode and the second electrode so as to generate sound waves.

According to the directional sounding display panel provided by the embodiment of the application, the second electrode comprises the first electrode part, the second electrode part and the third electrode part, the first electrode part and the third electrode part are respectively arranged on different sides of the display substrate in the thickness direction H, the second electrode part is arranged on one side of the first electrode, which is far away from the display substrate, and a cavity is formed between the first electrode and the second electrode part; the vibrating diaphragm is arranged on one side of the second electrode, which is far away from the display substrate, and comprises a first vibrating diaphragm part, a second vibrating diaphragm part and a third vibrating diaphragm part, wherein the first vibrating diaphragm part and the third vibrating diaphragm part are respectively arranged on different sides of the display substrate in the thickness direction, and the second vibrating diaphragm part is arranged on one side of the second electrode, which is far away from the display substrate. The diaphragm and a part of the film layer of the second electrode are arranged on the side surface of the toilet in the thickness direction H of the display substrate, the size of a frame formed by the directional sounding structure can be reduced, the frame formed by the directional sounding electrode and the diaphragm can be reduced, and then the frame of the display panel obtained by integrating the directional sounding and the display substrate can be reduced by combining the narrow frame of the display substrate, so that the influence of the integration of the directional sounding and the display on the frame is reduced, and the suitability of a narrow frame product of the directional sounding and the display is improved.

Drawings

Fig. 1 is a schematic structural diagram of a directional sounding display panel provided in an embodiment of the present application;

fig. 2 is a schematic structural view of another display panel provided in an embodiment of the present application;

fig. 3 is a schematic structural diagram of a display substrate on a display side according to an embodiment of the present application;

FIG. 4 is a schematic block diagram of yet another directional sounding display panel provided by an embodiment of the present application;

FIG. 5 is a schematic block diagram of yet another directional sounding display panel provided in an embodiment of the present application;

FIG. 6 is a schematic block diagram of a directional sounding display panel provided in an embodiment of the present application;

FIG. 7 is a schematic block diagram of another directional sounding display panel provided by an embodiment of the present application;

FIG. 8 is a schematic block diagram of yet another directional sounding display panel provided by an embodiment of the present application;

FIG. 9 is a schematic block diagram of yet another directional sounding display panel provided in an embodiment of the present application;

FIG. 10 is a schematic block diagram of a directional sounding display panel provided in an embodiment of the present application;

FIG. 11 is a schematic block diagram of another directional sounding display panel provided by an embodiment of the present application;

FIG. 12 is a schematic block diagram of yet another directional sounding display panel provided in an embodiment of the present application;

FIG. 13 is a schematic block diagram of a directional sounding display panel provided in an embodiment of the present application;

FIG. 14 is a schematic block diagram of a directional sounding display apparatus provided in an embodiment of the present application;

fig. 15 is a schematic flowchart of a method for manufacturing a directional sounding display panel according to an embodiment of the present disclosure;

fig. 16 is a schematic flowchart of another method for manufacturing a directional sounding display panel according to an embodiment of the present disclosure.

Detailed Description

In order to better understand the technical solutions provided by the embodiments of the present specification, the following detailed description of the technical solutions of the embodiments of the present specification is made through the accompanying drawings and the specific embodiments, and it should be understood that the specific features of the embodiments of the present specification are detailed descriptions of the technical solutions of the embodiments of the present specification, and not limit the technical solutions of the present specification, and the technical features of the embodiments of the present specification may be combined with each other without conflict.

In this document, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. The term "two or more" includes two or more cases.

In view of this, the embodiment of the application provides a directional sounding display panel, a display device and a preparation method, which can reduce the frame of the directional sounding display panel and improve the suitability of narrow frame products for directional sounding and display.

In a first aspect of the embodiments of the present application, a directional sounding display panel is provided, and fig. 1 is a schematic structural diagram of the directional sounding display panel provided in the embodiments of the present application. As shown in fig. 1, the directional sound emission display panel includes: the display substrate 100, the first electrode 200, the second electrode 300, and the diaphragm 400. The display substrate 100 may include a liquid crystal display substrate, an organic light emitting display substrate, an LED display substrate, or a laser display substrate, for example, and embodiments of the present application are not particularly limited. The first electrode 200 is disposed at one side of the display substrate 100; the second electrode 300 includes a first electrode portion 310, a second electrode portion 320, and a third electrode portion 330, the first electrode portion 310 and the third electrode portion 330 being respectively disposed on different sides of the display substrate 100 in the thickness direction H, the second electrode portion 320 being disposed on a side of the first electrode 200 away from the display substrate 100, a cavity 301 being formed between the first electrode 200 and the second electrode portion 320; the diaphragm 400 is disposed on a side of the second electrode 300 away from the display substrate 100, the diaphragm 400 includes a first diaphragm portion 410, a second diaphragm portion 420, and a third diaphragm portion 430, the first diaphragm portion 410 and the third diaphragm portion 430 are respectively disposed on different sides of the display substrate 100 in the thickness direction H, and the second diaphragm portion 420 is disposed on a side of the second electrode portion 320 away from the display substrate 100; the diaphragm 400 is used to vibrate under the driving of the first electrode 200 and the second electrode 300 to generate sound waves. Due to the cavity 301, the second diaphragm portion 420 may vibrate in the thickness direction H under the driving of the first electrode 200 and the second electrode portion 320, the vibration of the second diaphragm portion 420 may generate ultrasonic waves, and the audible sound with high directivity is demodulated after propagating a certain distance through the unique nonlinear effect of the ultrasonic waves, thereby realizing an audible sound signal with strong directivity, and achieving the effect of directional propagation of the audio signal. The cavity 301 provides a deformation space for the vibration of the second diaphragm portion 420, the emitted sound is strong in pointing direction, has independent audio space, high in privacy and capable of resisting noise pollution, and after the directional sounding substrate and the display substrate are integrated, the effects of sound and image integration, one-screen multi-sound or sound follow-up and the like can be achieved, and surrounding immersive hearing and spatial stereo sound effects can be provided. The directional sounding structure is integrated on the display substrate, so that the display panel is thinner, the screen occupation ratio is higher, and extremely visual enjoyment is brought, and the directional sounding structure can be widely applied to scenes with privacy and noise requirements such as notebooks, vehicles, displays and business displays.

It should be noted that, the diaphragm 400 may be disposed on the display side of the display substrate 100, and sound waves emitted by vibration of the diaphragm may be propagated from the display side, for example, propagated in a front view angle range of the display side, and sounded directionally may be realized by the propagation of silent waves in other oblique view angle ranges, so as to play a role in preventing peeping.

In some examples, the diaphragm 400 may be disposed on a side of the display substrate 100 facing away from the display side, and may be disposed according to a specific directional sounding requirement, where the disposition of the diaphragm 400 is not specifically limited in the embodiments of the present application.

It should be noted that fig. 2 is a schematic structural diagram of another display panel provided in an embodiment of the present application. As shown in fig. 2, the directional sounding display panel includes a display substrate 100 and a directional sounding substrate 101, and the display substrate 100 and the directional sounding substrate are stacked in a thickness direction H. Since the non-display frame of the display substrate 100 has been narrowed, the frame is narrower than the directional sounding substrate 101, and the light shielding frame of the directional sounding substrate 101 is generally wider than the non-display frame of the display substrate 100. Therefore, integrating the display substrate 100 with the directional sounding substrate 101 may cause the non-display frame of the directional sounding display panel to become larger, affecting the screen ratio of the display panel.

In the directional sounding display panel provided by the embodiment of the present application, the second electrode 300 includes the first electrode portion 310, the second electrode portion 320 and the third electrode portion 330, the first electrode portion 310 and the third electrode portion 330 are respectively disposed on different sides of the display substrate 100 in the thickness direction H, the second electrode portion 320 is disposed on one side of the first electrode 200 away from the display substrate 100, and the cavity 301 is formed between the first electrode 200 and the second electrode portion 320; the diaphragm 400 is disposed on a side of the second electrode 300 away from the display substrate 100, the diaphragm 400 includes a first diaphragm portion 410, a second diaphragm portion 420 and a third diaphragm portion 430, the first diaphragm portion 410 and the third diaphragm portion 430 are respectively disposed on different sides of the display substrate 100 in the thickness direction H, and the second diaphragm portion 420 is disposed on a side of the second electrode portion 320 away from the display substrate 100. The diaphragm 400 and a part of the film layer of the second electrode 300 are arranged on the side surface of the toilet in the thickness direction H of the display substrate 100, so that the size of a frame formed by the directional sounding structure can be reduced, the frame formed by the directional sounding electrode and the diaphragm can be reduced, and then the frame of the display panel obtained by integrating the directional sounding and the display substrate 100 can be reduced by combining the narrow frame of the display substrate 100, the influence of the integration of the directional sounding and the display on the frame is reduced, and the suitability of a narrow frame product of the directional sounding and the display is improved.

In some embodiments, referring to fig. 1, the first electrode part 310, the second electrode part 320, and the third electrode part 330 are integrated electrode layers, and the integrated electrode layers may be prepared simultaneously, that is, the second electrode 300 may be prepared in whole layers, and the first electrode part 310 and the third electrode part 330 at both ends may be bent to different sides in the thickness direction H of the display substrate 100 by bonding and bending after the preparation is completed. The integrated electrode layer is easy to prepare, and is convenient for electric connection and signal transmission.

In some examples, the first electrode part 310, the second electrode part 320, and the third electrode part 330 may be directly prepared on the front and side surfaces of the display substrate 100 through an electrode film forming process, without a film bending and bonding process.

In some embodiments, referring to fig. 1, the first diaphragm portion 410, the second diaphragm portion 420, and the third diaphragm portion 430 are integral film layers; that is, the diaphragm 400 may be entirely prepared, the second electrode 300 may be prepared first, the diaphragm 400 may be disposed at one side of the second electrode 300, the first diaphragm portion 410 and the first electrode portion 310 may be bent to one or more sides of the display substrate 100 after the diaphragm 400 is attached to the display substrate 100, and the third diaphragm portion 430 and the third electrode portion 330 may be bent to one or more sides of the display substrate 100. The integrated diaphragm 400 is easy to manufacture without increasing the process difficulty.

In some examples, the first diaphragm portion 410, the second diaphragm portion 420, and the third diaphragm portion 430 may be directly prepared on the side of the second electrode 300 remote from the display substrate 100 through a film forming process such as coating or spraying.

In some embodiments, fig. 3 is a schematic structural diagram of a display substrate on a display side according to an embodiment of the present application. As shown in fig. 3, the display substrate 100 includes a binding area 102, where the binding area 102 is used for binding and connecting to a driving circuit board, and then a side of the display substrate 100 where the binding area is located may be a driving side 103, that is, a side of the display substrate 100 close to the driving circuit board that is in binding and connecting is the driving side 103, and other sides of the display substrate 100 except for the driving side 103 are non-driving sides 104, and the display substrate 100 shown in fig. 3 has one driving side 103 and three non-driving sides 104, which is only illustrative and not a specific limitation of the embodiment of the present application. Referring to fig. 3, the first electrode portion 310 and the third electrode portion 330 may be disposed on two non-driving sides 104 opposite to each other of the display substrate, for example, the first electrode portion 310 and the third electrode portion 330 may be disposed on two sides of the display substrate shown in fig. 3, so as to facilitate bending and pasting of the integrated electrode layer.

In some examples, referring to fig. 3, the first electrode portion 310 and the third electrode portion 330 may also be disposed at two adjacent non-driving sides 104, or all non-driving sides 104 of the display substrate 100 may be provided with an electrode layer of the second electrode 300, which is not particularly limited in the embodiments herein.

It should be noted that fig. 4 is a schematic structural diagram of another directional sounding display panel provided in an embodiment of the present application. As shown in fig. 4, an adhesive layer 500 and a base layer 600 are disposed between the first electrode 200 and the display substrate 100, a first insulating layer 201 and a support post 700 are disposed between the first electrode 200 and the second electrode 300, and one end of the support post 700 is connected to the first insulating layer 201. A first conductive structure 202 is disposed between the first insulating layer 201 and the first electrode 200, and a frame sealant 800, a sealant 900, a second insulating layer 303, and a second conductive structure 302 are disposed at an edge between the second electrode 300 and the first insulating layer 201. In the case where the diaphragm 400 is left standing without vibrating, there is a distance between the support post 700 and the second electrode 300 for buffering of vibration. The first conductive structure 202, the second conductive structure 302, the second insulating layer 303, the frame glue 800 and the sealant 900 are all disposed on the frame of the display substrate, that is, the first frame 105 is formed, and the first frame 105 exceeds the non-display frame 106 of the display substrate 100. Because the frame glue 800 and the sealant 900 are generally wider to ensure better support and sealing, the first frame 105 exceeds the non-display frame 106 more, so that the frame of the directional sounding display panel is directly and greatly increased, and the display screen occupation ratio is reduced.

In some implementations, fig. 5 is a schematic block diagram of still another directional sounding display panel provided by an embodiment of the present application. As shown in fig. 5, the directional sound emission display panel further includes: the adhesive layer 500, the base layer 600, the support post 700, the frame glue 800, the sealant 900, the first insulating layer 201, the first conductive structure 202, the second conductive structure 302, and the second insulating layer 303. The base layer 600 is disposed between the display substrate 100 and the first electrode 200, and the base layer 600 may be used to carry the first electrode 200. By way of example, the substrate layer 600 may include glass, POL (polarizer), PET (polyethylene terephthalate), polyimide, or the like. The support columns 700 are disposed between the first electrode 200 and the second electrode 320, and the support columns 700 may be used to form a plurality of sounding cavity cells in the cavity 301, so as to form a uniform sounding cavity cell, the support columns 700 may be disposed to be uniformly arranged, and an area surrounded by the plurality of support columns 700 may be used as an area of a transverse sounding cavity cell. Illustratively, the material of the support post 700 may comprise an organic material, may be formed to a desired high height, and is easily controlled in shape. The first insulating layer 201 is disposed between the first electrode 200 and the support post 700; the first insulating layer 201 may be a whole surface insulating layer, and may insulate the first electrode 200 as a surface electrode. The support post 700 may be directly disposed on a side of the first insulating layer 201 remote from the first electrode 200. The first insulating layer 201 may be a passivation material, for example, may be an inorganic material or an organic material, and the inorganic material may include silicon nitride or silicon oxide. The first conductive structure 202 is disposed between the first electrode 200 and the first insulating layer 201, the first conductive structure 202 is electrically connected to the first electrode 200, and the first conductive structure 202 may be electrically connected to the first electrode 200 in a surface contact manner. The first conductive structure 202 may serve as a wire structure for transmitting a driving signal to the first electrode 200. The first and second electrodes 200 and 300 may include metal or transparent electrodes, for example, the first and second electrodes 200 and 300 may include ITO (indium tin oxide), and may also be a stacked structure of ITO/Ag/ITO. The first electrode 200 may be a planar electrode, and the first conductive structure 202 may be a trace structure distributed at an edge of the first electrode 200. The second conductive structure 302 is disposed between the second electrode 300 and the display substrate 100, and the second conductive structure 302 is electrically connected to the second electrode 300; the second conductive structure 302 is disposed on the side of the display substrate 100 in the thickness direction H, and the second conductive structure 302 is disposed on the side of the base layer 600 in the thickness direction H. The second conductive structure 302 is connected to the first electrode portion 310, and the second conductive structure 302 is connected to the third electrode portion 330. By way of example, the second conductive structure 302 and the first conductive structure 202 may include a metal, such as copper or silver. The second conductive structure 302 may serve as a wire structure for transmitting a driving signal to the second electrode 300. The first conductive structure 202 and the second conductive structure 302 may be used to reduce the sheet resistance of the face electrode. The second insulating layer 303 is disposed between the second conductive structure 302 and the display substrate 100, the second insulating layer 303 may include ink or dry film, and the second insulating layer 303 is used for protecting the second conductive structure 302. The sealant 800 is disposed between the second insulating layer 303 and the display substrate 100; the sealant 900 is disposed between the second insulating layer 303 and the display substrate 100; the sealant 800 is connected to the sealant 900 in the thickness direction H, a part of the sealant 800 is disposed on the side surface of the base layer 600 in the thickness direction H, a part of the sealant 800 is disposed on the side surface of the display substrate 100 in the thickness direction H, and the sealant 900 is disposed on the side surface of the display substrate 100 in the thickness direction H. The sealant 800 is used to support and attach the display substrate 100 to the second insulating layer 303, and the sealant 900 may be prepared after the sealant 800, and the sealant 900 may be used to seal the attachment gap, to seal the cavity 301, and to seal the attachment structure. Illustratively, the frame gel 800 may have tackiness. The sealant 900 may be an ultraviolet curing adhesive, so as to ensure the tightness of the frame adhesive 800 and the tightness and stability of the sounding cavity 301.

In some examples, the adhesive layer 500 may be a transparent optical glue or other adhesive glue. The diaphragm 400 may include PET, POL, CPI (transparent polyimide) or other abrasive material.

In some examples, referring to fig. 5, where the front projection of the support post 700 on the display substrate 100 does not overlap with the front projection of the first conductive structure 202 on the display substrate 100, the support post 700 is distributed in the middle region of the first electrode 200, and the first conductive structure 202 is distributed in the edge region of the first electrode 200.

As shown in fig. 5, the frame adhesive 800, the sealant 900, the second insulating layer 303, the second conductive structure 302, the first electrode portion 310, the first diaphragm portion 410, the third electrode portion 330 and the third diaphragm portion 430 are disposed on the side surface of the display substrate 100 in the thickness direction H, so that the width of the first frame 105 shown in fig. 4 can be reduced, and the second frame 107 can be generated, but due to the lamination of the side portions in the direction perpendicular to the thickness direction H and the lamination of the frame adhesive 800 and the sealant 900 in the thickness direction H, the second frame 107 can not be too wide, and in the case that the non-display frame 106 is unchanged, the increase of the second frame 107 can be smaller than the difference between the first frame 105 and the non-display frame 106, so that the generation of the second frame 107 still reduces the final frame of the display panel.

It should be noted that, in order to clearly illustrate the positions and the connection relationships of the structures, the dimensions of the film layer structures in the drawings corresponding to the embodiments of the present application are enlarged and illustrated appropriately, so that the second frame 107 shown in fig. 5 is wider, but in actual production, the dimensions of the second frame 107 are narrower, so that the ratio of the structural dimensions of the drawings provided in the embodiments of the present application is merely illustrative and not particularly limited as embodiments of the present application.

The directional sounding display panel that this embodiment provided compares the range upon range of setting of directional sounding structure and display substrate shown in fig. 4, through all setting up partial second electrode 300, partial vibrating diaphragm 400, frame gum 800, sealant 900, second conductive structure 302 and second insulating layer 303 at the side of display substrate 100 in thickness direction H, and set up frame gum 800 and sealant 900 range upon range of connection in thickness direction, make the side of directional sounding structure and rete parcel display substrate 100, realize the frame reduction to directional sounding structure, can also strengthen the laminating reliability and the stability of directional sounding structure rete and display substrate 100 simultaneously, and improve the leakproofness of display substrate 100 side.

In some examples, referring to fig. 5, an end of the frame adhesive 800 away from the sealant 900 is connected to a side of the second electrode portion 320 near the display substrate 100, an end of the second insulating layer 303 away from the sealant 900 in the thickness direction H is connected to a side of the second electrode portion 320 near the display substrate 100, and an end of the second conductive structure 302 away from the sealant 900 in the thickness direction H is connected to a side of the second electrode portion 320 near the display substrate 100. The sealing performance is better, and the attaching precision is easy to control.

In some examples, fig. 6 is a schematic structural diagram of a directional sounding display panel provided in an embodiment of the present application. As shown in fig. 6, an end of the frame adhesive 800 away from the sealant 900 has a gap with a side of the second electrode portion 320 near the display substrate 100, an end of the second insulating layer 303 away from the sealant 900 has a gap with a side of the second electrode portion 320 near the display substrate 100 in the thickness direction H, and an end of the second conductive structure 302 away from the sealant 900 has a gap with a side of the second electrode portion 320 near the display substrate 100 in the thickness direction H. The existence of the gap can enlarge the space of the cavity 301, so that the vibration sounding area can be increased, and the sounding intensity can be improved.

In some embodiments, a portion of the first electrode 200 is disposed on a side of the base layer 600 in the thickness direction H. Part of the first electrode 200 is disposed on a side surface of the display substrate 100 in the thickness direction H.

In some embodiments, a portion of the base layer 600 is disposed at a side of the display substrate 100 in the thickness direction H.

In some embodiments, the first conductive structure 202 is disposed at a side of the display substrate 100 in the thickness direction H. The first conductive structure 202 is disposed on a side surface of the base layer 600 in the thickness direction H.

In some embodiments, a portion of the first insulating layer 201 is disposed on a side surface of the display substrate 100 in the thickness direction H; a part of the first insulating layer 201 is provided on the side surface of the base layer 600 in the thickness direction H

In some examples, fig. 7 is a schematic block diagram of another directional sounding display panel provided by an embodiment of the present application. As shown in fig. 7, the side surface of the display substrate 100 in the thickness direction H is sequentially covered with a portion of the adhesive layer 500, a portion of the base layer 600, a portion of the first electrode 200, the first conductive structure 202, and a portion of the first insulating layer 201, and then the base layer 600 may be made of a flexible material.

For example, in the manufacturing process, the adhesive layer 500, the base layer 600, the first electrode 200, the first conductive structure 202, the first insulating layer 201, and the support column 700 may be sequentially prepared on one side of the display substrate 100, the second electrode 300, the second conductive structure 302, the second insulating layer 303, and the frame glue 800 may be sequentially disposed on one side of the diaphragm 400, one side with the frame glue 800 may be bonded to the display substrate with the support column 700 being prepared, such that the frame glue 800 is bonded to the first insulating layer 201 on the side of the display substrate 100, a cavity 301 may be formed between the second electrode portion 320 and the first electrode 200 in the region where the support column 700 is located, and finally the sealant may be filled into a gap formed by the second insulating layer 303, the first insulating layer 201, and the frame glue 800.

As shown in fig. 7, a part of the first electrode 200, a part of the first insulating layer 201 and the first conductive structure 202 are disposed on the side surface of the display substrate 100, so that the frame can be further compressed, the formed third frame 108 can be smaller, the difference between the first frame 105 and the non-display frame 106 is larger than the width of the third frame 108, and the width of the third frame 108 shown in fig. 7 is larger than the drawing size of each film structure for clearly showing, but the actual size is smaller, so that the frame size of the directional sounding display panel can be further reduced.

In some examples, referring to fig. 7, an end of the sealant 800 away from the sealant 900 is connected to a side of the second electrode portion 320 near the display substrate 100, an end of the second insulating layer 303 away from the sealant 900 in the thickness direction H is connected to a side of the second electrode portion 320 near the display substrate 100, and an end of the second conductive structure 302 away from the sealant 900 in the thickness direction H is connected to a side of the second electrode portion 320 near the display substrate 100. The sealing performance is better, and the attaching precision is easy to control.

In some examples, fig. 8 is a schematic block diagram of yet another directional sounding display panel provided by an embodiment of the present application. As shown in fig. 8, an end of the frame adhesive 800 away from the sealant 900 has a gap with a side of the second electrode portion 320 near the display substrate 100, an end of the second insulating layer 303 away from the sealant 900 has a gap with a side of the second electrode portion 320 near the display substrate 100 in the thickness direction H, and an end of the second conductive structure 302 away from the sealant 900 has a gap with a side of the second electrode portion 320 near the display substrate 100 in the thickness direction H. The existence of the gap can enlarge the space of the cavity 301, so that the vibration sounding area can be increased, and the sounding intensity can be improved.

In some implementations, fig. 9 is a schematic block diagram of still another directional sounding display panel provided in an embodiment of the present application. As shown in fig. 9, the second electrode 300 includes a fourth electrode part 340, the fourth electrode part 340 is disposed at a side of the display substrate 100 facing away from the first electrode 200, and the first electrode part 310 and the third electrode part 330 are electrically connected to the fourth electrode part 340; the fourth electrode part 340 may be disposed opposite to the second electrode part 320, and disposed at opposite sides of the display substrate 100, respectively. The diaphragm 400 includes a fourth diaphragm portion 440, the fourth diaphragm portion 440 is disposed on a side of the fourth electrode portion 340 away from the display substrate 100, and the first diaphragm portion 410 and the third diaphragm portion 430 are connected to the fourth diaphragm portion 440. The arrangement of the fourth electrode portion 340 and the fourth diaphragm portion 440 can wrap one side of the display substrate 100 away from the second electrode portion 320, so that the wrapping property of the diaphragm and the second electrode on the back side of the display substrate can be improved while the frame is reduced, and the sealing property and stability of the lamination are further improved, and the reliability of the display panel is further improved.

In some embodiments, referring to fig. 9, in the case where the second electrode 300 includes the fourth electrode part 340, the first electrode part 310, the second electrode part 320, the third electrode part 330, and the fourth electrode part 340 are an integrated electrode layer, that is, the second electrode 300 may be a full-layer surface electrode. In the case where the diaphragm 400 includes the fourth diaphragm portion 440, the first diaphragm portion 410, the second diaphragm portion 420, the third diaphragm portion 430, and the fourth diaphragm portion 440 are an integral film layer. The integrated film layer is easy to prepare, and the fourth electrode portion 340 and the fourth diaphragm portion 440 may be bent to a side of the display substrate 100 facing away from the second electrode portion 320 during the lamination process.

In some embodiments, referring to fig. 9, the number of the fourth electrode parts 340 is at least two, with a gap between at least two fourth electrode parts 340. The number of the fourth diaphragm portions 440 is at least two, and a gap is formed between the at least two fourth diaphragm portions 440. The gap between the two fourth electrode portions 340 and the gap between the two fourth diaphragm portions 440 may form the lamination gap 304, and the reservation of the lamination gap 304 may facilitate the filling of the subsequent sealant.

In some embodiments, a portion of the first electrode is disposed on a side of the display substrate remote from the second electrode portion; and/or the number of the groups of groups,

in some embodiments, a portion of the base layer 600 is disposed on a side of the display substrate 100 remote from the second electrode portion 320.

In some embodiments, in the case that the second electrode 300 includes the fourth electrode portion 340, the second conductive structure 302 is disposed on a side of the display substrate 100 away from the first electrode 200, and the second conductive structure 302 is connected to the fourth electrode portion 340, that is, the second conductive structure 302 is disposed on a side of the display substrate 100 away from the second conductive portion 320. The second conductive structure 302 is moved from the side surface to the back surface of the display substrate, so that the frame size of the display panel can be further reduced, and the narrow frame arrangement of the directional sounding display panel can be further realized.

In some embodiments, in the case where the second electrode 300 includes the fourth electrode part 340, a portion of the second insulating layer 303 is disposed between the first electrode part 310 and a sidewall of the display substrate 100, a portion of the second insulating layer 303 is disposed between the third electrode part 330 and a sidewall of the display substrate 100, and a portion of the second insulating layer 303 is disposed between the fourth electrode part 340 and a backside of the display substrate 100, wherein the sidewall of the display substrate 100 is a side in the thickness direction H, and the backside of the display substrate 100 is a side of the display substrate 100 facing away from the first electrode 200; a portion of the sealant 800 is disposed between the second insulating layer 303 and the sidewall of the display substrate 100, and a portion of the sealant 800 is disposed between the second insulating layer 303 and the backside of the display substrate 100.

In some embodiments, in the case where the second electrode 300 includes the fourth electrode part 340, the sealant 900 is disposed between the fourth electrode part 340 and the back side of the display substrate 100, and the sealant 900 and the frame sealant 800 are connected in a direction perpendicular to the thickness direction H of the display substrate.

In some examples, fig. 10 is a schematic structural diagram of a directional sounding display panel provided in an embodiment of the present application. As shown in fig. 10, the second insulating layer 303 extends from the side surface of the display substrate 100 to the back side of the display substrate 100, the sealant 800 extends from the side surface of the display substrate 100 to the back side of the display substrate 100, a gap is formed between the back side of the display substrate 100 and the second insulating layer 303, the gap can accommodate the sealant 900, and then one end of the sealant 900 away from the bonding gap 304 is connected to the sealant 800. The second conductive structure 302 is located between the second insulating layer 303 and the fourth electrode portion 340 on the back side of the display substrate 100.

In some embodiments, referring to fig. 10, the first conductive structure 202 and the second conductive structure 302 are respectively located on opposite sides of the display substrate 100 in the thickness direction H, and an orthographic projection of the first conductive structure 202 on the display substrate 100 falls within an orthographic projection of the second conductive structure 302 on the display substrate 100. In the case that the diaphragm 400 includes the fourth diaphragm portion 440, the orthographic projection of the first conductive structure 202 on the display substrate 100 falls within the orthographic projection of the fourth diaphragm portion 440 on the display substrate 100. The orthographic projection of the first conductive structure 202 on the display substrate 100 covers the orthographic projection of a part of the sealant on the display substrate. The front projection of the first conductive structure 202 on the display substrate 100 covers the front projection of the portion of the sealant 900 on the display substrate 100. The number of the support columns 700 is plural, and the orthographic projection of the fourth diaphragm portion 440 on the display substrate 100 covers the orthographic projection of a portion of the support columns 700 on the display substrate 100.

In some examples, referring to fig. 10, the dimension of the support post 700 in the thickness direction H of the display substrate 100 is smaller than the largest dimension of the cavity 301 in the thickness direction H. One end of the frame glue 800, which is close to the second electrode part 320, is connected with one side surface of the second electrode part 320, which is close to the display substrate 100; one end of the second insulating layer 303 near the second electrode part 320 is connected to a side surface of the second electrode part 320 near the display substrate 100.

In some examples, fig. 11 is a schematic block diagram of another directional sounding display panel provided by an embodiment of the present application. As shown in fig. 11, an end of the frame adhesive 800 away from the sealant 900 has a gap with a side of the second electrode portion 320 near the display substrate 100, an end of the second insulating layer 303 away from the sealant 900 has a gap with a side of the second electrode portion 320 near the display substrate 100 in the thickness direction H, and an end of the second conductive structure 302 away from the sealant 900 has a gap with a side of the second electrode portion 320 near the display substrate 100 in the thickness direction H. The existence of the gap can enlarge the space of the cavity 301, so that the vibration sounding area can be increased, and the sounding intensity can be improved.

In some implementations, fig. 12 is a schematic block diagram of still another directional sounding display panel provided by an embodiment of the present application. As shown in fig. 12, the first conductive structure 202 is disposed on a side of the display substrate 100 facing away from the second electrode portion 320. A portion of the first insulating layer 201 is disposed on a side of the display substrate 100 facing away from the second electrode portion 320. A portion of the adhesive layer 500, a portion of the base layer 600, a portion of the first electrode 200, and a portion of the first insulating layer 201 are disposed on a side of the display substrate 100 facing away from the support posts 700. The first conductive structure 202 is located between the first insulating layer 201 and the first electrode 200 on the back side of the display substrate 100. The first insulating layer 201 is connected to the frame sealant 800 and the sealant 900.

In some examples, the first insulating layer 201 wraps around a side of the first conductive structure 202 away from the first electrode 200 and a side of the first conductive structure 202 in a thickness direction.

As shown in fig. 12, by disposing the first conductive structure 202 and the second conductive structure 302 on the side of the display substrate 100 away from the second electrode portion 320, the width of the frame can be greatly reduced, the size of the fourth frame 109 formed is further reduced, and the sum of the non-display frame 106 and the fourth frame 109 is much smaller than the width of the first frame 105.

For example, referring to fig. 12, an end of the frame adhesive 800 near the second electrode part 320 is connected to a side surface of the second electrode part 320 near the display substrate 100; one end of the second insulating layer 303 near the second electrode part 320 is connected to a side surface of the second electrode part 320 near the display substrate 100.

Fig. 13 is a schematic structural diagram of a directional sounding display panel according to an embodiment of the present application. As shown in fig. 13, an end of the frame adhesive 800 away from the sealant 900 has a gap with a side of the second electrode portion 320 near the display substrate 100, an end of the second insulating layer 303 away from the sealant 900 has a gap with a side of the second electrode portion 320 near the display substrate 100 in the thickness direction H, and an end of the second conductive structure 302 away from the sealant 900 has a gap with a side of the second electrode portion 320 near the display substrate 100 in the thickness direction H. The existence of the gap can enlarge the space of the cavity 301, so that the vibration sounding area can be increased, and the sounding intensity can be improved.

For example, in the conventional frame-pasting process of the directional sounding substrate and the display substrate, the width of the frame glue is about 1mm, the width of the sealant is about 1.5mm, the pasting process error range is about 0.8mm, the frame design value of the directional sounding substrate needs to be more than 3.3mm, the frame of the display substrate is about 2.0mm in the existing notebook or tablet computer, the minimum frame size can reach about 1mm, and the frame of 3.3mm far exceeds the frame size of the display substrate. The frame paste also typically causes the display panel to increase in thickness by 1.2mm to 3.3mm, increasing in weight to greater than 300g.

According to the directional sounding display panel provided by the embodiment of the application, the side frames brought by the directional sounding structure can be reduced, and the side frames caused by the frame pasting are reduced by arranging the part of the second electrode 300, the part of the vibrating diaphragm, the second conductive structure 302, the part of the second insulating layer 303, the frame glue 800, the sealant 900, the part of the first insulating layer 201, the first conductive structure 202 and the part of the first electrode 200 on the side face or the back face of the display substrate. The frame of the directional sounding structure can be reduced by 0.1mm or less, the minimum frame of the display substrate can be matched by 1mm, the thickness of the directional sounding display panel can be increased by 0.1 to 1.2mm, the effect of balancing the frame and the thickness can be achieved through proper structural adjustment, the frame of the directional sounding structure can be slightly increased by 0.1 to 0.25mm and still be smaller than 1mm, and the thickness of the sounding structure can be reduced from 3.3mm to 0.15mm.

Illustratively, the directional sounding frame of the directional sounding display panel shown in fig. 13 may be controlled to be about 0.25mm, the thickness of the sounding structure may be about 0.15mm, and the thickness of the display portion may be significantly reduced from 1.8 to 3.5mm to 0.25mm. By wrapping the sides and bottom of the display substrate 100, the overall bezel and thickness may be reduced.

In a second aspect of the embodiments of the present application, a directional sounding display apparatus is provided, and fig. 14 is a schematic structural diagram of the directional sounding display apparatus provided in the embodiments of the present application. As shown in fig. 14, the directional sound emission display device includes: the directional sound emitting display panel 1000 of the first aspect. The directional sounding display device provided by the embodiment of the application has a smaller frame.

It should be noted that, the display device provided in the embodiment of the present application may include a smart phone, a tablet computer, a notebook computer, a television, an intelligent wearable display device, and the like, and the intelligent wearable display device may include an intelligent watch, and the embodiment of the present application is not limited specifically.

According to the directional sounding display device provided by the embodiment of the application, the second electrode 300 comprises the first electrode portion 310, the second electrode portion 320 and the third electrode portion 330, the first electrode portion 310 and the third electrode portion 330 are respectively arranged on different sides of the display substrate 100 in the thickness direction H, the second electrode portion 320 is arranged on one side of the first electrode 200 far away from the display substrate 100, and a cavity 301 is formed between the first electrode 200 and the second electrode portion 320; the diaphragm 400 is disposed on a side of the second electrode 300 away from the display substrate 100, the diaphragm 400 includes a first diaphragm portion 410, a second diaphragm portion 420 and a third diaphragm portion 430, the first diaphragm portion 410 and the third diaphragm portion 430 are respectively disposed on different sides of the display substrate 100 in the thickness direction H, and the second diaphragm portion 420 is disposed on a side of the second electrode portion 320 away from the display substrate 100. The diaphragm 400 and a part of the film layer of the second electrode 300 are arranged on the side surface of the toilet in the thickness direction H of the display substrate 100, so that the size of a frame formed by the directional sounding structure can be reduced, the frame formed by the directional sounding electrode and the diaphragm can be reduced, and then the frame of the display panel obtained by integrating the directional sounding and the display substrate 100 can be reduced by combining the narrow frame of the display substrate 100, the influence of the integration of the directional sounding and the display on the frame is reduced, and the suitability of a narrow frame product of the directional sounding and the display is improved.

In a third aspect of the embodiments of the present application, a method for manufacturing a directional sounding display panel is provided, where the method is used to manufacture the directional sounding display panel according to the first aspect, and fig. 15 is a schematic flowchart of a method for manufacturing a directional sounding display panel provided in the embodiments of the present application. As shown in fig. 15, the preparation method includes:

s1: one side of the vibrating diaphragm is provided with a second electrode, and one side of the display substrate is provided with a first electrode, wherein the vibrating diaphragm comprises a first vibrating diaphragm part, a second vibrating diaphragm part and a third vibrating diaphragm part, the second vibrating diaphragm part is connected between the first vibrating diaphragm part and the third vibrating diaphragm part, the second electrode comprises a first electrode part, a second electrode part and a third electrode part, and the second electrode part is connected between the first electrode part and the third electrode part.

For example, referring to fig. 1, the process of disposing the second electrode 300 on one side of the diaphragm 400 and disposing the first electrode 200 on one side of the display substrate 100 may be performed simultaneously on different production lines, so that the production may be improved and the production tact may be optimized.

S2: the method comprises the steps of attaching a vibrating diaphragm provided with a second electrode to a display substrate frame provided with a first electrode, enabling the first electrode part and the third electrode part to be arranged on different sides of the display substrate in the thickness direction respectively, enabling the second electrode part to be arranged on one side of the first electrode, away from the display substrate, forming a cavity between the first electrode part and the second electrode part, enabling the vibrating diaphragm to be located on one side of the second electrode, away from the display substrate, enabling the first vibrating diaphragm part and the third vibrating diaphragm part to be arranged on different sides of the display substrate in the thickness direction respectively, enabling the second vibrating diaphragm part to be arranged on one side of the second electrode part, away from the display substrate, and enabling the vibrating diaphragm to vibrate under driving of the first electrode and the second electrode to generate sound waves.

For example, the side of the second electrode 300 and the side of the first electrode 200 may be relatively bonded, and the portions of the second electrode 300 and the diaphragm 400 beyond the display substrate 100 may be bent and bonded to the side of the display substrate 100, so as to achieve the effect of reducing the frame.

In some embodiments, in conjunction with fig. 5 to 8, after disposing the second electrode on one side of the diaphragm, it may further include:

the second conductive structure 302, the second insulating layer 303 and the frame glue 800 are sequentially disposed on the sides of the first electrode portion 310 and the third electrode portion 330, which are away from the diaphragm 400, respectively.

In some embodiments, referring to fig. 10 to 13, after disposing the second electrode on one side of the diaphragm, it may further include:

in the case where the second electrode 300 includes the fourth electrode portion 340, the second conductive structure 302 and the second insulating layer 303 are sequentially disposed on a side of the fourth electrode portion 340 away from the diaphragm 400, and the sealant 800 is disposed in the areas where the first electrode portion 310, the third electrode portion 330, and a portion of the fourth electrode portion 340 are located.

In some embodiments, in conjunction with fig. 5-8 and 10-13, after step S2, the method further includes:

the sealant 900 is filled in a gap between the display substrate 100 and the frame sealant 800.

In some examples, the first conductive structure 202, the first insulating layer 201, and the support post 700 may be sequentially disposed on a side of the first electrode 200 remote from the display substrate 100 prior to the bonding step.

In some examples, the adhesive layer 500 and the base layer 600 may be disposed at one side of the display substrate 100 before the first electrode 200 is prepared.

In some examples, the first electrode 200, the first conductive structure 202, the first insulating layer 201, the support column 700, the frame glue 800, the second insulating layer 303, the second conductive structure 302, the second electrode 300, the diaphragm 400 and the sealant 900 may be sequentially prepared on one side of the substrate layer 600, to obtain a directional sounding substrate; then the directional sounding substrate and the display substrate 100 are adhered and attached through the adhesive layer 500; after the lamination, the excess portions of the adhesive layer 500, the base layer 600, the first electrode 200, the first conductive structure 202, the first insulating layer 201, the frame adhesive 800, the sealant 900, the second insulating layer 303, the second conductive structure 302, the second electrode 300, and the diaphragm may be bent to the side and/or the back of the display substrate 100.

In a fourth aspect of the embodiments of the present application, a method for manufacturing a directional sounding display panel is provided, where the method is used to manufacture a directional sounding display panel according to the first aspect, and fig. 16 is a schematic flowchart of another method for manufacturing a directional sounding display panel provided in the embodiments of the present application. As shown in fig. 16, the preparation method includes:

S3: a first electrode is disposed on one side of the display substrate.

S4: and a second electrode is arranged on one side of the first electrode away from the display substrate and on the side surface of the display substrate in the thickness direction, wherein the second electrode comprises a first electrode part, a second electrode part and a third electrode part, the second electrode part is connected between the first electrode part and the third electrode part, and a cavity is formed between the first electrode part and the second electrode part.

S5: and a vibrating diaphragm is arranged on one side, far away from the display substrate, of the second electrode, wherein the vibrating diaphragm comprises a first vibrating diaphragm part, a second vibrating diaphragm part and a third vibrating diaphragm part, the second vibrating diaphragm part is connected between the first vibrating diaphragm part and the third vibrating diaphragm part, and the vibrating diaphragm is used for vibrating under the driving of the first electrode and the second electrode so as to generate sound waves.

In some examples, before step S3, it may further include:

an adhesive layer 500 and a base layer 600 are sequentially disposed on one side of the display substrate.

Step S3 may include: the first electrode 200 is disposed on a side of the base layer 600 remote from the display substrate 100.

Before the second electrode is disposed, the method may further include:

the first conductive structure 202, the first insulating layer 201, the support columns 700 and the frame glue 800 are sequentially disposed on a side of the first electrode 200 away from the display substrate 100.

The second insulating layer 303, the second conductive structure 302, the second electrode 300, and the diaphragm 400 may be sequentially disposed on the side of the frame glue 800 and the support post 700 away from the display substrate 100.

And finally, filling the sealant 900.

The preparation method of the directional sounding display panel provided by the embodiment of the application can directly integrate the directional sounding structure on the display substrate, and does not need frame pasting or a bending process.

It should be noted that the preparation method provided in the examples of the present application is only illustrative, and is not a specific limitation of the examples of the present application.

In the foregoing embodiments, the descriptions of the embodiments are focused on, and for those portions of one embodiment that are not described in detail, reference may be made to the related descriptions of other embodiments.

The above embodiments are only for illustrating the technical solution of the present application, and are not limiting thereof; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions.

While preferred embodiments of the present description 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 in the present specification without departing from the spirit or scope of the specification. Thus, if such modifications and variations of the present specification fall within the scope of the claims and the equivalents thereof, the present specification is also intended to include such modifications and variations.

Claims

1. A directional sounding display panel, comprising:

a display substrate;

a first electrode disposed on one side of the display substrate;

2. The directional sound generating display panel of claim 1,

the second electrode comprises a fourth electrode part, the fourth electrode part is arranged on one side of the display substrate, which is away from the first electrode, and the first electrode part and the third electrode part are electrically connected with the fourth electrode part; and/or the number of the groups of groups,

3. The directional sound generating display panel of claim 1 or 2,

The first electrode part, the second electrode part and the third electrode part are integrated electrode layers; or alternatively, the first and second heat exchangers may be,

and/or the number of the groups of groups,

4. The directional sound generating display panel of claim 2,

the number of the fourth electrode parts is at least two, and a gap is formed between at least two fourth electrode parts; and/or the number of the groups of groups,

5. The directional sound generating display panel of claim 1 or 2,

the first electrode part and the third electrode part are respectively arranged on two non-driving sides opposite to the display substrate, wherein the side surface of the display substrate, which is close to the driving circuit board in binding connection, is a driving side, and the other side surfaces of the display substrate except the driving side are the non-driving sides.

6. The directional sound emitting display panel of claim 1 or 2, further comprising:

a base layer disposed between the display substrate and the first electrode;

7. The directional sound generating display panel of claim 6, wherein,

Part of the first electrode is arranged on the side surface of the basal layer in the thickness direction; and/or the number of the groups of groups,

8. The directional sound generating display panel of claim 7,

the first conductive structure is arranged on the side surface of the display substrate in the thickness direction; and/or the number of the groups of groups,

9. The directional sound generating display panel of claim 8,

when the second electrode includes the fourth electrode portion, a part of the second insulating layer is disposed between the first electrode portion and a side wall of the display substrate, a part of the second insulating layer is disposed between the third electrode portion and a side wall of the display substrate, and a part of the second insulating layer is disposed between the fourth electrode portion and a back side of the display substrate, wherein the side wall of the display substrate is a side surface in a thickness direction, and the back side of the display substrate is a side of the display substrate facing away from the first electrode;

10. The directional sound emitting display panel of claim 9, further comprising:

in the case where the second electrode includes the fourth electrode portion, the sealant is disposed between the fourth electrode portion and the back side of the display substrate, and the sealant and the frame sealant are connected in a direction perpendicular to the thickness direction of the display substrate.

11. The directional sound generating display panel of claim 10,

in case the diaphragm comprises the fourth diaphragm portion,

12. The directional sound generating display panel of claim 10,

the dimension of the support column in the thickness direction of the display substrate is smaller than the largest dimension of the cavity 301 in the thickness direction H; and/or the number of the groups of groups,

the first insulating layer is connected with the frame glue and the sealant.

13. A directional sounding display apparatus, comprising:

the directional sound emitting display panel of any one of claims 1 to 12.

14. A method for manufacturing the directional sounding display panel of any one of claims 1 to 12, comprising:

15. The method for manufacturing a directional sounding display panel of claim 14, wherein,

after the second electrode is arranged on one side of the diaphragm, the diaphragm further comprises:

Or alternatively, the first and second heat exchangers may be,

and filling sealant in a gap between the display substrate and the frame glue.

16. A method for manufacturing the directional sounding display panel of any one of claims 1 to 12, comprising:

a first electrode is arranged on one side of the display substrate;