CN217693506U

CN217693506U - Frameless display device and frameless television

Info

Publication number: CN217693506U
Application number: CN202221976628.1U
Authority: CN
Inventors: 何灿; 张文洁; 胡小龙
Original assignee: Hisense Visual Technology Co Ltd
Current assignee: Hisense Visual Technology Co Ltd
Priority date: 2022-07-29
Filing date: 2022-07-29
Publication date: 2022-10-28
Anticipated expiration: 2032-07-29

Abstract

The application discloses no frame display device and no frame TV belongs to and shows technical field for the foam-cotton glue fracture of solving no frame TV among the correlation technique leads to display panel landing, threatens the technical problem of user's personal safety. The application provides a no frame display device includes: backplate, display panel, conducting resin, check out test set and mainboard. The conductive adhesive is arranged between the back plate and the display panel and is in adhesive connection with the back plate and the display panel; the conductive adhesive extends on the first wall surface of the back plate close to the display panel along the horizontal direction and is communicated with the power supply; the conductive adhesive comprises: a first end and a second end horizontally arranged with the first end; the detection equipment is electrically connected with the first end and the second end and is used for detecting the impedance and/or current change of the conductive adhesive; the mainboard is all connected with check out test set and display panel electricity.

Description

Frameless display device and frameless television

Technical Field

The utility model relates to a show technical field, especially relate to a no frame display device and no frame TV.

Background

With the development of the times, the consumption trend of display devices (such as televisions, tablet computers and the like) is being led due to the fact that the display devices are high in color value, extremely thin, extremely simplified and frameless, the front faces of the display devices are made to look like a piece of glass and have an infinitely extended visual impression, and the frameless display devices become a popular appearance trend in recent years.

Fig. 1 is a schematic structural diagram of a frameless tv in the related art, and as shown in fig. 1, a frameless tv 000 in the related art generally includes: display panel 001, backplate 002 and bubble cotton adhesive tape 003, backplate 002 play fixed display panel 001's effect, bubble cotton adhesive tape 003 sets up between display panel 001 and backplate 002, and is connected rather than gluing respectively to make backplate 002 and display panel 001 fixed connection.

However, the foam tape 003 may decrease the adhesion force over time, or when the display panel 001 is subjected to a large impact, the foam tape 003 is split to cause the display panel 001 to be separated from the back plate 002, and the display panel 001 slides to the ground. When the display panel 001 slides down, the user is located right near the frameless television 000, which may seriously affect the personal safety of the user.

SUMMERY OF THE UTILITY MODEL

An embodiment of the utility model provides a no frame display device and no frame TV for the bubble celloidin fracture of solving no frame TV leads to display panel landing, threatens the technical problem of user's personal safety.

In order to achieve the above object, the embodiments of the present invention adopt the following technical solutions:

in a first aspect, an embodiment of the present application provides a frameless display device and a frameless television, including: backplate, display panel, conducting resin, check out test set and mainboard. The conductive adhesive is arranged between the back plate and the display panel and is in adhesive connection with the back plate and the display panel; the conductive adhesive extends on the first wall surface of the back plate close to the display panel along the horizontal direction and is communicated with the power supply; the conductive adhesive comprises: a first end and a second end horizontally arranged with the first end; the detection device is electrically connected with the first end and the second end and is used for detecting the impedance and/or current change of the conductive adhesive; the mainboard is connected with the detection equipment and the display panel.

The frameless display device provided by the embodiment of the application comprises: backplate, display panel, conducting resin, check out test set and mainboard. The conductive adhesive is arranged between the back plate and the display panel and is in adhesive connection with both the back plate and the display panel, so that the display panel is fixed on the back plate. The conductive adhesive extends horizontally on the first wall surface of the back plate close to the display panel and is communicated with a power supply, so that the conductive adhesive is electrified. In addition, the conductive paste includes: the detection device is electrically connected with the first end and the second end and used for detecting the impedance and/or current change of the conductive adhesive. Therefore, when the conductive adhesive is split, the impedance and the current in the conductive adhesive can be changed, and the detection equipment can timely detect the change of the impedance and the current.

Because the mainboard is all connected with check out test set and display panel electricity to the mainboard can receive the impedance of check out test set transmission or the change condition of electric current, this mainboard can give the early warning for the user through display panel display picture, reminds promptly that the user keeps away from frameless display device, and then reduces the threat of display panel landing to personal safety.

In some embodiments, the conductive paste includes: the adhesive layer and the conductive foam layer; the adhesive layer includes: first adhesive layer and second adhesive layer, first adhesive layer with the backplate is glued and is connected, the second adhesive layer with display panel is glued and is connected, the cotton layer of electrically conductive bubble sets up first adhesive layer with between the second adhesive layer, and with first adhesive layer with the second adhesive layer is connected.

In some embodiments, the conductive foam layer comprises: the conductive ink comprises a foam body and conductive ink, wherein a containing cavity is formed in the foam body, and the extending direction of the containing cavity is the same as that of the conductive adhesive; the conductive ink is filled in the accommodating cavity.

In some embodiments, the detection device comprises: an impedance analyzer for detecting a change in impedance of the conductive adhesive.

In some embodiments, the detection apparatus further comprises: and the ammeter or the current tester is used for detecting the current change of the conductive adhesive.

In some embodiments, the conductive paste is located above the first wall surface.

In some embodiments, the frameless display panel further comprises: bubble celloidin, bubble celloidin also sets up on the first wall, the extending direction perpendicular to of bubble celloidin the extending direction of conducting resin, just bubble celloidin is close to the border of first wall.

In a second aspect, an embodiment of the present application further provides a frameless television, where the frameless television includes: the frameless display device according to the first aspect or any embodiment thereof.

It can be understood that, for the beneficial effects of the frameless television, reference may be made to the beneficial effects of the frameless display device described in the first aspect, which are not described in detail herein.

Drawings

Fig. 1 is a schematic structural diagram of a frameless television in the related art;

fig. 2 is a schematic structural diagram of a frameless display device according to an embodiment of the present application;

fig. 3 is a schematic cross-sectional structure diagram of a frameless display device according to an embodiment of the present application;

fig. 4 is a second schematic structural diagram of a frameless display device according to an embodiment of the present application;

FIG. 5 is a schematic circuit diagram of a borderless display device according to an embodiment of the present invention;

fig. 6 is a schematic cross-sectional view illustrating a conductive paste according to an embodiment of the present disclosure;

fig. 7 is a second schematic cross-sectional view illustrating a conductive paste according to an embodiment of the present disclosure;

fig. 8 is a schematic cross-sectional view of a conductive foam layer according to an embodiment of the present disclosure;

fig. 9 is a third schematic cross-sectional view illustrating a conductive adhesive according to an embodiment of the present disclosure;

fig. 10 is a third schematic structural diagram of a borderless display device according to an embodiment of the present invention;

fig. 11 is a second schematic circuit connection diagram of a frameless display device according to an embodiment of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or orientations or positional relationships that are conventionally placed when the products of the present invention are used, and are used for convenience of description and simplicity of description, but do not indicate or imply that the indicated device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are absolutely horizontal or overhanging, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present application, it is further noted that, unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

In a first aspect, an embodiment of the present application provides a frameless display device, where the frameless display device may be a device such as a liquid crystal display, a liquid crystal television, or a mobile terminal such as a mobile phone, a tablet computer, and an intelligent photo album.

For convenience of understanding and description, fig. 2 shows a schematic structural diagram of a frameless display device provided in this embodiment, fig. 3 shows a schematic sectional structural diagram of a frameless display device provided in this application, and as shown in fig. 2 and fig. 3, the frameless display device 100 may include: a backplane 10, a display panel 20, a conductive glue 30, a detection device 40 (not shown in fig. 2) and a motherboard 50 (not shown in fig. 2).

The back plate 10 has a supporting and bearing function, and is used for supporting and bearing the display panel 20. The material of the back plate 10 may be a metal material, for example, the metal material may be iron, aluminum alloy, or the like.

And a display panel 20 fixedly connected with the back plate 10, wherein the display panel 20 is used for displaying images. The display panel 20 has a plurality of pixel units arranged in an array, and each pixel unit can independently control the transmittance and color of light incident to the pixel unit, so that the light transmitted by all the pixel units forms a displayed image.

As shown in fig. 3, the conductive adhesive 30 is disposed between the back plate 10 and the display panel 20, and the conductive adhesive 30 is adhesively connected to both the back plate 10 and the display panel 20, so as to fixedly connect the display panel 20 and the back plate 10.

As shown in fig. 2, the conductive adhesive 30 extends horizontally on the first wall surface of the back plate 10 close to the display panel 20, and is connected to a power supply. That is, the conductive paste 30 may extend in a longitudinal direction of the first wall surface of the display panel 20 (i.e., in an X-axis direction as shown in fig. 2).

Wherein the conductive adhesive 30 is connected to a power source to energize the conductive adhesive 30. Alternatively, the conductive paste 30 may be electrically connected to a power supply board of the main board 50 to energize the conductive paste 30. Optionally, the conductive adhesive 30 may also be communicated with a power plug of the borderless display device 100, and when the power plug is plugged into a live socket, the conductive adhesive 30 is powered on.

In some embodiments, an electric storage device is disposed inside the frameless display device 100, for example, the electric storage device may be a storage battery, a lead-acid battery, or the like. In this way, the conductive paste 30 may be electrically connected to the power storage device to energize the conductive paste 30, which is not particularly limited in the present application.

Fig. 4 shows a schematic structural diagram of a frameless display device according to an embodiment of the present application, and as shown in fig. 4, the conductive paste 30 includes: the first end 31 and the second end 32 horizontally arranged with the first end 31, that is, the first end 31 and the second end 32 are respectively located at the left and right sides of the back plate 10. A detection device 40 is electrically connected to the first end 31 and the second end 32.

In one possible implementation, the detection device 40 may be used to detect impedance changes within the conductive glue 30.

Optionally, the detecting device 40 may include: an impedance analyzer for detecting a current change of the conductive paste 30. The impedance analyzer is an instrument capable of measuring the complex electrical impedance along with the change of frequency. The device can display the measurement result in a graphical mode by means of phase-sensitive detection and measuring the current and the voltage of a device in the sweep frequency test process.

Optionally, the detecting device 40 may include: the impedance tester has accurate and reliable measurement data.

In another possible implementation, the detection device 40 can also be used to detect a change in current within the conductive glue 30. By way of example, the detection device 40 may be an ammeter, a current tester, a hall current sensor, an electromagnetic current transformer, or the like.

In addition, fig. 5 shows a circuit connection schematic diagram of the frameless display device 100 according to the embodiment of the present application. As shown in fig. 5, the main board 50 may be electrically connected to both the inspection device 40 and the display panel 20. The main board 50 is a main component of the display device 100, and generally integrates a Central Processing Unit (CPU), a memory, a display core, a memory, and other chips, capacitors, circuits, and the like. It is understood that the main board 50 may have different functions according to different components of the main board 50.

The main board 50 may be electrically connected to the detection device 40, the main board 50 obtains detection data of the detection device 40, and when the main board 50 monitors that the impedance and/or the current change detected by the detection device 40 are abnormal, a preset early warning picture may be displayed through the display panel 20 to remind a user to keep away from the borderless display apparatus 100.

It should be noted that the display panel 20 is not completely separated from the back plate 10 at an instant when the display panel 20 is separated from the back plate 10. At the beginning of the separation of the display panel 20 from the backplane 10, a slight crack may occur in the conductive adhesive 30 between the display panel 20 and the backplane 10, and the crack gradually increases with time or under the impact of an external force. Finally, the quality change is caused by the amount change, the conductive adhesive 30 cannot fix the back plate 10 and the display panel 20, and the conductive adhesive 30 is completely split, so that the display panel 20 is separated from the back plate 10 and slides to the ground.

The frameless display device 100 provided in the embodiment of the present application includes: the display device comprises a back plate 10, a display panel 20, conductive adhesive 30, a detection device 40 and a main plate 50. The conductive adhesive 30 is disposed between the back plate 10 and the display panel 20, and is adhesively connected to both the back plate 10 and the display panel 20, so as to fix the display panel 20 on the back plate 10. The conductive adhesive 30 extends horizontally on a first wall surface of the back plate 10 close to the display panel 20, and is connected to a power supply, so that the conductive adhesive 30 is electrified. In addition, the conductive paste 30 includes: a first terminal 31, a second terminal 32 horizontally arranged with the first terminal 31, and a detecting device 40 electrically connected to the first terminal 31 and the second terminal 32, wherein the detecting device 40 is used for detecting the impedance and/or current change of the conductive adhesive 30. Thus, when the conductive adhesive 30 is cleaved, the impedance and the current in the conductive adhesive 30 are changed, and the detecting device 40 can timely detect the change of the impedance and the current.

Because the main board 50 is electrically connected to the detection device 40 and the display panel 20, the main board 50 can receive the change of the impedance or the current transmitted by the detection device 40, and the main board 50 can display a picture to give an early warning to a user through the display panel 20 at an initial stage when the display panel 20 is separated from the backplane 10, that is, prompt the user to keep away from the frameless display device 100 or maintain the frameless display device 100, thereby reducing the threat of the display panel 20 to personal safety.

Fig. 6 is a schematic cross-sectional view illustrating a conductive adhesive according to an embodiment of the present disclosure, and in some embodiments, as shown in fig. 6, the conductive adhesive 30 includes: an adhesive layer 33 and a conductive foam layer 34, the adhesive layer 33 comprising: the display panel comprises a first adhesive layer 331 and a second adhesive layer 332, wherein the first adhesive layer 331 is connected with the back panel 10 in an adhesive mode, the second adhesive layer 332 is connected with the display panel 20 in an adhesive mode, and the conductive foam layer 34 is arranged between the first adhesive layer 331 and the second adhesive layer 332 and is connected with the first adhesive layer 331 and the second adhesive layer 332 in an adhesive mode.

Illustratively, as shown in fig. 7, the adhesive layer 33 may include a polyethylene terephthalate (PET) substrate layer 3311 and a glue layer 3312, the PET substrate layer 3311 being positioned between the conductive foam layer 34 and the glue layer 3312. The glue layer 3312 of the first adhesive layer 331 is bonded to the back plate 10, and the glue layer 3312 of the second adhesive layer 332 is bonded to the display panel 20.

The foam adhesive tape is manufactured by coating a solvent type (or hot melt type) pressure sensitive adhesive on one surface or two surfaces of ethylene vinyl acetate copolymer (EVA) or Polyethylene (PE) foam which is taken as a base material and then compounding release paper. The foam adhesive tape has the functions of sealing and shock absorption. The foam adhesive tape has excellent sealing property, compression deformation resistance, flame retardance, wettability and the like, so that the foam adhesive tape is widely applied to electronic and electric products, mechanical parts, various small household appliances, mobile phone accessories, industrial instruments, computers and the like. Therefore, the borderless display device 100 in the related art generally uses foam tape to adhesively connect the rear panel 10 and the display panel 20.

In order to ensure the sealing performance, the compression deformation resistance, and the flame retardancy at the connection between the back plate 10 and the display panel 20, in a possible implementation manner, fig. 8 shows a schematic cross-sectional structure of a conductive foam layer provided in an embodiment of the present application, and as shown in fig. 8, the conductive foam layer 34 may include: the structure comprises a foam body 341 and conductive ink 342, wherein a containing cavity 3411 is formed in the foam body 341, and the extending direction of the containing cavity 3411 is the same as the extending direction of the conductive adhesive 30; the conductive ink 342 is filled in the accommodation chamber 3411. Thus, when the conductive paste 30 is split, the conductive ink 342 leaks, so that the current or resistance of the conductive ink 342 changes, and the detection device 40 detects the change in current or resistance in the conductive paste 30.

In order to facilitate the electrical connection of the detection device 40 and the conductive ink 342, as shown in fig. 9, an electrical connector 60 is optionally disposed at each of the first end 31 and the second end 32 of the conductive adhesive 30, the electrical connector 60 is fixed on the conductive adhesive 30 and is electrically connected to the conductive ink 342, and the detection device 40 is electrically connected to the electrical connector 60. Therefore, the detection device 40 only needs to be connected with the electrical connector 60 fixed on the conductive adhesive 30, and does not need to extend into the accommodating cavity 3411 to be electrically connected with the conductive ink 342, so that the production and installation of workers are facilitated.

The electrical connector 60 may be a conductive sheet, and the electrical connector 60 may also be a conductive rod, which is not limited in this application.

In another possible implementation, the conductive foam layer 34 may further include: a matrix foamed from core-shell polymer particles and conductive particles or conductive fibers. The conductive foam layer 34 can be manufactured by referring to the related art, and the detailed description thereof is omitted.

It is understood that, as shown in fig. 1, the foam tape 003 of the related art is generally wrapped around the first wall of the back plate 002 to adhesively connect the display panel 001 and the back plate 002. When the foam tape 003 is split, the foam tape 003 above the first wall surface (on the sky side) is often torn, so that, in some embodiments of the present application, as shown in fig. 10, the conductive adhesive 30 may be located above the first wall surface (i.e., in the direction indicated by the arrow on the Y axis in fig. 10).

Thus, when the conductive adhesive 30 on the first wall is split, the detection device 40 can sense the change of the impedance or the current at the first time, so that the main board 50 sends an early warning or a maintenance prompt to a user.

In order to improve the connection strength between the rear panel 10 and the display panel 20, in a possible implementation manner, as shown in fig. 10, the frameless display panel 20 further includes: and the foam rubber 70, the foam rubber 70 is also arranged on the first wall surface, the extending direction of the foam rubber 70 is perpendicular to the extending direction of the conductive rubber 30, and the foam rubber 70 is close to the edge of the first wall surface. The foam adhesive 70 is used to adhesively connect the back plate 10 to the display panel 20.

Alternatively, and as also shown in fig. 10, the foam 70 may include: first foam 71 and second foam 72, the first foam 71 and the second foam 72 being located at opposite side edges of the first wall.

In this way, the conductive adhesive 30 is provided on the upper side (the upper side) of the first wall surface of the back sheet 10, and the foam adhesives 70 are provided on both the left and right sides of the first wall surface. Because the left side and the right side of the first wall surface use the common foam cotton rubber, the production cost can be reduced.

Fig. 11 is a circuit connection diagram of a frameless display device according to an embodiment of the present application, and in some embodiments, as shown in fig. 11, the frameless display device 100 further includes: and a speaker 80, wherein the speaker 80 is electrically connected to the main board 50. Therefore, when the main board 50 monitors that the impedance and/or the current variation detected by the detection device 40 is abnormal, a voice prompt may be provided to the user through the speaker 80 to warn or remind the user to repair the borderless display device 100. Therefore, the user is warned and reminded in a voice mode, and the user experience is improved.

In a second aspect, an embodiment of the present application further provides a frameless television, where the frameless television includes: the frameless display device 100.

The borderless display device 100 can refer to the description of the first aspect, and the description thereof is omitted here.

The frameless television provided by the embodiment of the application includes a frameless display device 100, and the frameless display device 100 includes: the display device comprises a back plate 10, a display panel 20, conductive adhesive 30, a detection device 40 and a main plate 50. The conductive adhesive 30 is disposed between the back plate 10 and the display panel 20, and is adhesively connected to both the back plate 10 and the display panel 20, so as to fix the display panel 20 on the back plate 10. The conductive adhesive 30 extends horizontally on a first wall surface of the back plate 10 close to the display panel 20, and is connected to a power supply, so that the conductive adhesive 30 is electrified. In addition, the conductive paste 30 includes: a first terminal 31, a second terminal 32 horizontally arranged with the first terminal 31, and a detecting device 40 electrically connected to the first terminal 31 and the second terminal 32, wherein the detecting device 40 is used for detecting the impedance and/or current change of the conductive adhesive 30. Thus, when the conductive adhesive 30 is cleaved, the impedance and the current in the conductive adhesive 30 change, and the detection device 40 can detect the change of the impedance and the current in time.

Since the main board 50 is electrically connected to both the detection device 40 and the display panel 20, the main board 50 can receive the change of the impedance or the current transmitted by the detection device 40, and the main board 50 can display a picture on the display panel 20 to give an early warning to a user at an initial stage when the display panel 20 is detached from the backplane 10, that is, prompt the user to leave away from the frameless television or maintain the frameless television, thereby reducing the threat of the display panel 20 slipping to personal safety.

The particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A frameless display device, comprising: backplate and display panel, its characterized in that, no frame display device still includes:

the conductive adhesive is arranged between the back plate and the display panel and is in adhesive connection with both the back plate and the display panel; the conductive adhesive extends on the first wall surface of the back plate close to the display panel along the horizontal direction and is communicated with a power supply; the conductive adhesive includes: a first end and a second end horizontally arranged with the first end;

the detection equipment is electrically connected with the first end and the second end and is used for detecting the impedance and/or current change of the conductive adhesive;

the mainboard, the mainboard with check out test set with display panel all electricity is connected.

2. The frameless display device of claim 1, wherein the conductive adhesive comprises:

an adhesive layer and a conductive foam layer; the adhesive layer includes: first adhesive layer and second adhesive layer, first adhesive layer with the backplate is connected, the second adhesive layer with display panel is glued and is connected, the cotton layer setting of electrically conductive bubble is in first adhesive layer with between the second adhesive layer, and with first adhesive layer with the second adhesive layer is connected.

3. The frameless display device of claim 2, wherein the conductive foam layer comprises:

the conductive adhesive packaging structure comprises a foam body, wherein a containing cavity is formed in the foam body, and the extending direction of the containing cavity is the same as that of the conductive adhesive;

conductive ink filled in the accommodation cavity.

4. The frameless display device of claim 1, wherein the detection apparatus comprises: an impedance analyzer for detecting a change in impedance of the conductive adhesive.

5. The frameless display device of claim 1, wherein the detection apparatus further comprises: and the ammeter or the current tester is used for detecting the current change of the conductive adhesive.

6. The frameless display device of claim 1, wherein the conductive adhesive is disposed over the first wall.

7. The bezel-less display apparatus of claim 6, wherein the bezel-less display panel further comprises:

bubble celloidin, bubble celloidin also sets up on the first wall, the extending direction perpendicular to of bubble celloidin the extending direction of conducting resin, just bubble celloidin is close to the border of first wall.

8. A frameless television, said frameless television comprising: a frameless display device according to any one of claims 1-7.