CN111984067B

CN111984067B - Display device

Info

Publication number: CN111984067B
Application number: CN202010894653.4A
Authority: CN
Inventors: 孙拓; 张硕; 梁魁
Original assignee: BOE Technology Group Co Ltd; Beijing BOE Technology Development Co Ltd
Current assignee: BOE Technology Group Co Ltd; Beijing BOE Technology Development Co Ltd
Priority date: 2020-08-31
Filing date: 2020-08-31
Publication date: 2023-08-29
Anticipated expiration: 2040-08-31
Also published as: CN111984067A

Abstract

The application relates to the technical field of display, and discloses a display device, wherein a first display component and a second display component are connected through an elastic connecting piece to realize elastic connection, so that the display device can be switched between a folded state and an unfolded state, and when the display device is in the folded state, display screens in the first display component and the second display component are not deformed, but are deformed through an elastic electric connecting part in the elastic connecting piece, and therefore, larger stress generated by folding can be avoided for the display screens in the first display component and the second display component.

Description

Display device

Technical Field

The application relates to the technical field of display, in particular to a display device.

Background

Some functions of the Lap Top PC (notebook computer) have been turned to productivity applications. Each manufacturer expands the application of the Lap Top PC in aspects of image processing/design business/data processing and the like through 3:2 screen design, introduction of high-performance devices and the like.

Due to the size and portability requirements of PCs, the screen cannot be made very large, and 15.6-16 inches has reached a limit without affecting portability. But have disadvantages in terms of design and image processing.

In order to achieve both larger display area and portability, some manufacturers have designed folding screen notebooks that can have significant advantages in terms of multitasking.

However, in the existing folding screen notebook, the two folded display screens are integrated, and the vicinity of the folding position of the display screen bears larger stress, so that the reliability is poor.

Disclosure of Invention

The application discloses a display device which is used for avoiding a display screen when the display device is folded.

In order to achieve the above purpose, the present application provides the following technical solutions:

the present application provides a display device including: the display device comprises a first display assembly, a second display assembly and an elastic connecting piece; the elastic connecting piece comprises a first electric connecting part, a second electric connecting part and an elastic electric connecting part, wherein the elastic electric connecting part is used for electrically connecting the first electric connecting part with the second electric connecting part, the first electric connecting part is electrically connected with the first display assembly, and the second electric connecting part is electrically connected with the second display assembly; when the display device is in a folded state, the light emitting surface of the first display component and the light emitting surface of the second display component are arranged oppositely; when the display device is in an unfolding state, the light emitting surface of the first display component and the light emitting surface of the second display component face the same direction.

In the display device, the first display component and the second display component are connected through the elastic connecting piece to realize elastic connection, so that the display device can be switched between the folded state and the unfolded state, and when the display device is in the folded state, the display screens in the first display component and the second display component are not deformed, but are deformed through the elastic electric connecting part in the elastic connecting piece, and therefore, the display screens in the first display component and the second display component can avoid larger stress caused by folding. In addition, the elastic connecting piece is used for electrically connecting the first display assembly and the second display assembly, so that coordinated communication between the first display assembly and the second display assembly can be realized.

Optionally, the elastic electrical connection has a redundant structure.

Optionally, the bending part of the redundant structure is a round corner structure.

Optionally, the redundant structure further comprises a straight line segment connected between adjacent rounded structures.

Optionally, the bending part of the redundant structure is a folded angle structure.

Optionally, the redundant structure is in a shape of a Chinese character 'ji'.

Optionally, the redundant structure is a parting structure.

Optionally, the redundant structure is a mesh structure.

Optionally, the elastic electrical connection portion includes: a third substrate; and a wire group distributed on at least one side of the third substrate;

the first electric connection part is provided with a first golden finger, the second electric connection part is provided with a second golden finger, the lead group is connected with the first golden finger and the second golden finger, the first golden finger is electrically connected with the first display component, and the second golden finger is electrically connected with the second display component.

Optionally, the first display component and/or the second display component have a touch function.

Drawings

Fig. 1 is a schematic diagram of a display device in a folded state according to an embodiment of the present application;

FIG. 2 is a schematic view of the display device of FIG. 1 in an expanded state;

FIG. 3 is a schematic view of the display device of FIG. 1 in an expanded state;

FIG. 4 is a schematic view of the display device of FIG. 1 in a folded state;

FIG. 5 is a cross-sectional view taken at A1-A2 of FIG. 3;

fig. 6 is a schematic diagram of a display device provided in an embodiment of the present application in a notebook state when the display device is a folding screen notebook;

fig. 7 is a schematic diagram of a display device in an unfolded state when the display device is a folding screen notebook according to an embodiment of the present application;

FIG. 8 is a schematic view of a flexible connector in a display device according to an embodiment of the present application;

FIG. 9 is a schematic view of another flexible connector in a display device according to an embodiment of the present application;

FIG. 10 is a schematic view of another flexible connector in a display device according to an embodiment of the present application;

FIG. 11 is a schematic view of another flexible connector in a display device according to an embodiment of the present application;

FIG. 12 is a schematic view of another flexible connector in a display device according to an embodiment of the present application;

fig. 13 is a positional relationship diagram of a first fixing member and a second fixing member in a display device according to an embodiment of the present application.

Detailed Description

The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

In connection with fig. 1 to 4:

the embodiment of the application provides a display device 01, and the display device 01 comprises: a first display assembly 10, a second display assembly 20, and an elastic connection member 30; the elastic connection member 30 includes a first electrical connection portion 31, a second electrical connection portion 35, and an elastic electrical connection portion 33, the elastic electrical connection portion 33 electrically connects the first electrical connection portion 31 and the second electrical connection portion 35, the first electrical connection portion 31 is electrically connected with the first display assembly 10, and the second electrical connection portion 35 is electrically connected with the second display assembly 20;

referring to fig. 1, when the display device 01 is in a folded state, the light-emitting surface G1 of the first display assembly 10 is disposed opposite to the light-emitting surface G2 of the second display assembly 20; referring to fig. 2, when the display device 01 is in the unfolded state, the light-emitting surface G1 of the first display assembly 10 and the light-emitting surface G2 of the second display assembly 20 face in the same direction (in fig. 2, the light-emitting surfaces of both face upward).

In the display device 01 described above, the first display module 10 and the second display module 20 are connected by the elastic connection member 30 to achieve elastic connection, and therefore, the display device 01 can be switched between the folded state and the unfolded state, and when the display device 01 is in the folded state, the display screens in the first display module 10 and the second display module 20 are not deformed, but are deformed by the elastic electrical connection member 33 in the elastic connection member 30, and therefore, the display screens in the first display module 10 and the second display module 20 can avoid a large stress due to folding. In addition, the elastic connection member 30 electrically connects the first display assembly 10 and the second display assembly 20, and thus, coordinated communication between the first display assembly 10 and the second display assembly 20 can be achieved.

Specifically, referring to fig. 1 and 2, the first display assembly 10 includes a first display screen 11 and a first substrate 13 that are stacked, where the first display screen 11 may select a panel such as an OLED (organic light-emitting diode) and a iled (Micro LED) that does not need a frame, a surface of the first display screen 11 facing the first substrate 13 is provided with first pins 11i that are in communication with an internal circuit of the first display screen 11, the first substrate 13 has first metal electrodes 13i, the first pins 11i and the first metal electrodes 13i may be in one-to-one correspondence, each first metal electrode 13i has a first docking pin exposed on a surface of the first substrate 13 facing the first display screen 11, and each first docking pin may be disposed opposite to the corresponding first pin 11 i. A first conductive connector 12 is filled between the first display 11 and the first substrate 13, and the first conductive connector 12 may be an anisotropic conductive paste, eutectic bonding, or silver paste. When the first conductive connector 12 is an anisotropic conductive adhesive, the first conductive connector 12 may be spread between the first display screen 11 and the first substrate 13, and in particular, the first conductive connector 12 is to be filled between the first pin 11i and the first butt-joint pin of the first metal electrode 13i, so that the first pin 11i is electrically connected with the first butt-joint pin of the first metal electrode 13 i; when the first conductive connector 12 is made of a material with high conductivity, such as eutectic bonding or silver paste, the first conductive connector 12 may be formed only between the first lead 11i and the first butt-joint lead of the first metal electrode 13i, and an insulating paste may be formed around the first butt-joint lead of the first metal electrode 13i to electrically isolate the different first metal electrodes 13 i.

Similarly, referring to fig. 1 and 2, the second display assembly 20 includes a second display screen 21 and a second substrate 23 that are stacked, where the second display screen 21 may select a panel that does not need a frame, such as an OLED (organic light-emitting diode) and a ULED, a surface of the second display screen 21 facing the second substrate 23 is provided with second pins 21i that are in communication with an internal circuit of the second display screen 21, the second substrate 23 has second metal electrodes 23i, the second pins 21i and the second metal electrodes 23i may be in one-to-one correspondence, and each second metal electrode 23i has a second docking pin exposed on a surface of the second substrate 23 facing the second display screen 21, and each second docking pin may be disposed opposite to the corresponding second pin 21 i. A second conductive connector 22 is filled between the second display screen 21 and the second substrate 23, and the second conductive connector 22 may be an anisotropic conductive paste, eutectic bonding, or silver paste. When the second conductive connector 22 is an anisotropic conductive adhesive, the second conductive connector 22 may be entirely spread between the second display screen 21 and the second substrate 23, and particularly, the second conductive connector 22 is to be filled between the second pin 21i and the second butt-joint pin of the second metal electrode 23i, so that the second pin 21i is electrically connected with the second butt-joint pin of the second metal electrode 23 i; when the second conductive connector 22 is made of a material with strong conductivity, such as eutectic bonding and silver paste, the second conductive connector 22 may be formed only between the second lead 21i and the second butt-joint lead of the second metal electrode 23i, and an insulating paste may be formed around the second butt-joint lead of the second metal electrode 23i to electrically isolate different second metal electrodes 23i and avoid short circuits.

The specific structure of the elastic connection member 30 may refer to fig. 3 and 4, where the elastic connection member 30 includes a first electrical connection portion 31, a second electrical connection portion 35, and an elastic electrical connection portion 33; the first electrical connection part 31 has a first gold finger, and the second electrical connection part 35 has a second gold finger; the first electrical connection portion 31 may further include a first circuit board 32, the second electrical connection portion 35 may further include a second circuit board 34, the first circuit board 32 and the second circuit board 34 may be flexible circuit boards, the first electrical connection portion 31 is formed on a surface of the first circuit board 32, the first circuit board 32 serves as a carrier of the first electrical connection portion 31, the second electrical connection portion 35 is formed on a surface of the second circuit board 34, and the second circuit board 34 serves as a carrier of the second electrical connection portion 35.

Then, referring to fig. 5, the elastic electrical connection portion 33 may specifically include a third substrate 33c and wire groups (33 a and 33 e), wherein the wire groups 33a and 33e each include a plurality of metal wires, the plurality of metal wires included in the wire groups 33a each connect the first gold finger and the second gold finger, respectively, and the metal wires in the wire groups 33e are also similar; the wire group 33a is formed on one side of the third substrate 33c, the wire group 33e is formed on the other side of the third substrate 33c, the surface of the wire group 33a may be covered with an insulating protective layer 33b, the surface of the wire group 33e may be covered with an insulating protective layer 33d, the insulating protective layer 33b and the insulating protective layer 33d may be polyimide, PMMA (polymethyl methacrylate ), or PDMS (polydimethylsiloxane), the insulating protective layer 33b may prevent the wire group 33a from being knocked, oxidized, or a short circuit between metal wires therein, and the insulating protective layer 33d functions similarly. It should be understood that only one of the wire set 33a and the wire set 33e may be reserved. The third substrate 33c may be a flexible circuit board.

The first golden finger of the first electrical connection portion 31 is electrically connected with a portion of the first metal electrode 13i exposed out of the surface of the first substrate 13 facing away from the first display screen 11, a portion of the first metal electrode 13i exposed out of the first substrate 13 forms a metal sliding sheet, and the first golden finger is in sliding fit with the metal sliding sheet to achieve electrical connection, specifically, the metal sliding sheet is formed on an inner wall of a slot structure, and the first golden finger is electrically connected with the metal sliding sheet on the inner wall when inserted into the slot structure, so that electrical connection between the first golden finger and the first display assembly 10 is achieved. The connection manner of the second gold finger of the second electrical connection portion 35 and the second metal electrode 23i may be similar, so that the electrical connection between the second gold finger and the second display assembly 20 is realized, and details are not repeated.

In order to avoid that the elastic electrical connection portion 33 has a certain elasticity and can sufficiently release stress when the display device 01 is switched between the folded state and the unfolded state, the elastic electrical connection portion 33 may have a redundant structure to avoid fatigue fracture. The term "redundant structure" should be understood as follows: the extending path is nonlinear, the part between the two ends is not fixed, and has a certain deformation redundancy, when the display device 01 is switched between the folded state and the unfolded state, the deformation of each part including the redundant structure in the elastic electric connection part 33 can be dispersed to each part of the part structure in the redundant structure, and the generated stress is released in the redundant structure.

There are various forms in which the elastic electrical connection portion 33 forms a redundant structure.

As shown in fig. 3 and 4, the elastic electrical connection portion 33 is formed in a "several" shape structure as a whole, which forms the above-described redundant structure. When the display device 01 is in an unfolded state (fig. 2) or a notebook state, the structure of a Chinese character 'ji' shape is compressed (fig. 3); when the display device 01 is in a folded state (fig. 1), the structure of a Chinese character 'ji' shape is unfolded, and the stress is released. Specifically, the elastic electrical connection portion 33 includes a first segment a, a second segment b, a third segment c, a fourth segment d and a fifth segment e that are sequentially connected, where the second segment b, the third segment c and the fourth segment d form a U-shaped structure, the first segment a is connected to one end of the second segment b away from the third segment c and is bent in a direction away from the fourth segment d, and the fifth segment e is connected to one end of the fourth segment d away from the third segment c and is bent in a direction away from the second segment b, so as to form the above-mentioned several-shaped structure. Wherein the length of the second segment b may be equal to the length of the fourth segment d, and the length of the fourth segment L2 is at least 2 times the length L1 of the third segment L1, so as to reduce stress dispersed on the third segment L1; the length L1 of the third segment c is at least 1.5 times the total thickness of the first display screen 11, the first substrate 13, the second display screen 21 and the second substrate 23 after the display device 01 is folded, so as to ensure that the third segment L1 with larger stress does not contact the sharp side parts of the first display screen 11, the first substrate 13, the second display screen 21 and the second substrate 23 and is damaged.

In addition, the redundant structure of the elastic electrical connection 33 may have various forms.

For example, the redundant structure of the elastic electrical connection portion 33 has a rounded corner structure at the bent portion.

Specifically, as shown in fig. 8, the redundant structure is formed by splicing a plurality of round corner structures. The rounded corner structure can avoid too concentrated stress.

As shown in fig. 9, the redundant structure of the elastic electrical connection portion 33 may be a serpentine reciprocating structure, and the redundant structure includes a plurality of rounded structures, wherein the openings of every two adjacent rounded structures face opposite directions, and every two rounded structures are connected through a straight line segment. Specifically, the round corner structure k1 and the round corner structure k2 are connected through a straight line section v1, the round corner structure k2 and the round corner structure k3 are connected through a straight line section v2, the round corner structure k3 and the round corner structure k4 are connected through a straight line section v3, and the round corner structure k4 and the round corner structure k5 are connected through a straight line section v 4.

In addition, as shown in fig. 10, the bending portion of the redundant structure of the elastic electrical connection portion 33 may be a folded angle structure.

To further increase the redundancy of the various redundancy structures described above, the redundancy structures may be of a parting structure. Referring specifically to fig. 11, a plurality of small U-shaped structures are connected in sequence to form one or more large U-shaped structures.

Still alternatively, as shown in fig. 12, the redundant structure of the elastic electrical connection portion 33 is a mesh structure. Due to the existence of the hollowed-out parts in the network structure, the network structure can also have a certain redundancy.

In the display device 01, the first display assembly 10 and/or the second display assembly 20 has a touch function. Specifically, the first display assembly 10 has a touch function, the second display assembly 20 has a touch function, or both the first display assembly 10 and the second display assembly 20 have touch functions.

For example, the display device 01 is illustratively a folding-screen notebook, and referring to fig. 6, the display device 01 is in a notebook state, that is, an included angle between the light-emitting surface G1 of the first display screen 11 of the first display assembly 10 and the light-emitting surface G2 of the second display screen 21 of the second display assembly 20 is greater than 0 degrees and less than 180 degrees. The first display 11 and the second display 21 are separated by a flat axis L. At least the second display screen 21 is a touch screen.

The partial area of the first display screen 11 forms a desktop display area S1, the partial area of the second display screen S2 forms a virtual keyboard area S21 and a virtual touch pad area S22, the virtual touch pad area S22 is located at a side of the virtual keyboard area S21 away from the flat axis L, the virtual keyboard area S21 is used for inputting characters and the like, and is similar to a function of a physical keyboard, and the virtual touch pad area S22 is used for selecting a position, and is similar to a function of a mouse.

Referring to fig. 7 again, the display device 01 shown in fig. 6 is unfolded, the light emitting surface G1 of the first display screen 11 and the light emitting surface G2 of the second display screen 21 face the same direction, the included angle between the two may be 180 degrees, the first display screen 11 has a first display area S1, the second display screen 12 has a second display area S2, the first display area S1 and the second display area S2 are combined together to form a large display area, the display area is enlarged, and input is performed by using the peripheral keyboard and the mouse. As described in the foregoing embodiment, the first display 11 and the second display 12 are electrically connected, and therefore, signal interconnection and power interconnection can be realized therebetween, and coordinated presentation of pictures can be realized.

Continuing to refer back to fig. 3 and 4, the side of the surface of the first substrate 13 facing away from the first display screen 11, which is close to the flexible connection member 30, is provided with a first fixing support 14, and the side of the surface of the second substrate 23 facing away from the second display screen 21, which is close to the flexible connection member 30, is provided with a second fixing support 24. Referring to fig. 6 and 7, the display device 01 further includes a first rear case 10k and a second rear case 20k. The first rear case 10k is disposed on a side of the first substrate 13 facing away from the first display screen 11 and is connected to the first fixing support 14, the first fixing support 14 plays a role in supporting and isolating between the first substrate 13 and the first rear case 10k, and wrinkles formed by the influence of the first rear case 10k on the first substrate 13 and the extrusion of the second rear case 20k on the second substrate 23 are controlled between the first fixing support 14 and the second fixing support 24, so that wrinkles are reduced, and the first substrate 13 is prevented from directly contacting the first rear case 10 k; the second rear case 20k is disposed on a side of the second substrate 23 facing away from the second display screen 21, and the second solid space 24 plays a role in supporting and isolating between the second substrate 23 and the second rear case 20k, so as to avoid the second substrate 23 from directly contacting with the second rear case 20k. The positions of the first and second anchors 14, 24 and the flexible connector 30 can be seen with reference to fig. 13.

It will be apparent to those skilled in the art that various modifications and variations can be made to the embodiments of the present application without departing from the spirit and scope of the application. Thus, it is intended that the present application also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims

1. A display device, comprising: the display device comprises a first display assembly, a second display assembly and an elastic connecting piece;

the elastic connecting piece comprises a first electric connecting part, a second electric connecting part and an elastic electric connecting part, wherein the elastic electric connecting part is used for electrically connecting the first electric connecting part with the second electric connecting part, the first electric connecting part is electrically connected with the first display assembly, and the second electric connecting part is electrically connected with the second display assembly;

the elastic electric connection part is provided with a redundant structure;

when the display device is in a folded state, the light emitting surface of the first display component and the light emitting surface of the second display component are arranged oppositely;

when the display device is in an unfolding state, the light emitting surface of the first display component and the light emitting surface of the second display component face the same direction, and the redundant structure extends between the first display component and the second display component along a direction parallel to the light emitting surface of the first display component.

2. The display device of claim 1, wherein the redundant structures are rounded at their bends.

3. The display device of claim 2, wherein the redundant structures further comprise straight line segments connected between adjacent rounded structures.

4. The display device of claim 1, wherein the redundant structure is folded at an angle.

5. The display device of claim 1, wherein the redundant structure is in a "few" shape.

6. A display device according to any one of claims 2 to 5, wherein the redundant structure is a split structure.

7. The display device of claim 1, wherein the redundant structure is a mesh structure.

8. The display device according to claim 1, wherein the elastic electrical connection portion includes: a third substrate; and a wire group distributed on at least one side of the third substrate;

9. The display device of claim 1, wherein the first display component and/or the second display component has a touch function.