CN106297574B

CN106297574B - Screen assembly

Info

Publication number: CN106297574B
Application number: CN201610810879.5A
Authority: CN
Inventors: 张斌
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2016-09-08
Filing date: 2016-09-08
Publication date: 2022-07-01
Anticipated expiration: 2036-09-08
Also published as: CN106297574A

Abstract

The disclosure relates to a screen assembly, and belongs to the technical field of display screens. The screen assembly includes: the device comprises an OLED screen, a foam layer, a rigid supporting layer and an integrated circuit board electrically connected with the OLED screen; one side of the foam layer is bonded with the OLED screen, and the other side of the foam layer is bonded with one side of the rigid supporting layer; this integrated circuit board is laminated to the opposite side of this rigidity supporting layer, sets up the rigidity supporting layer between bubble cotton layer and integrated circuit board promptly, and the pressure of integrated circuit board to the cotton layer of bubble is by the relatively even dispersion of rigidity supporting layer to this rigidity supporting layer and the cotton layer bonded region of bubble for in OLED screen and the cotton layer bonded region of bubble, the pressure that the cotton layer of bubble received on each point is relatively even, is difficult to produce the fold, thereby very big release OLED screen produces the orange line phenomenon when the screen is closed the state.

Description

Screen assembly

Technical Field

The disclosure relates to the technical field of display screens, in particular to a screen assembly.

Background

Compared with the conventional screen, the organic light-emitting diode (OLED) screen has excellent characteristics of self-luminescence, high contrast, thin thickness, wide viewing angle, fast response speed, and the like.

In the related art, a display device using an OLED screen is generally light and thin, a gap between the OLED screen and a display device frame is narrow, and a layer of foam is generally arranged between the OLED screen and the display device frame in order to solve the orange-peel problem of the OLED screen when the OLED screen is not displayed. For example, please refer to the schematic view of fig. 1, in which a foam layer 130 is disposed between the OLED screen 110 and the display device frame 120, and an integrated circuit board 140 for controlling the OLED screen 110 is disposed between the foam layer 130 and the display device frame 120.

Disclosure of Invention

The embodiment of the disclosure provides a screen assembly, and the technical scheme is as follows:

according to a first aspect of embodiments of the present disclosure, there is provided a screen assembly including:

the device comprises an organic light-emitting diode screen, a foam layer, a rigid supporting layer and an integrated circuit board electrically connected with the light-emitting diode screen;

one side of the foam layer is bonded with the organic light-emitting diode screen, and the other side of the foam layer is bonded with one side of the rigid supporting layer;

the other side of the rigid supporting layer is attached to the integrated circuit board.

Optionally, one side of the foam layer is bonded with the organic light emitting diode screen through an exhaust adhesive tape.

Optionally, the rigid supporting layer is a rigid conductive foil, and the rigid conductive foil is electrically connected to the integrated circuit board.

Optionally, the rigid conductive foil and the integrated circuit board are bonded by a conductive venting tape.

Optionally, the rigid conductive foil is a conductive copper foil.

Optionally, the other side of the foam layer is bonded with one side of the rigid support layer through an exhaust adhesive tape.

Optionally, the foam layer is made of a closed-cell foam material.

Optionally, the organic light emitting diode screen is a flexible organic light emitting diode screen.

Optionally, the integrated circuit board is a flexible circuit board FPC.

According to a second aspect of embodiments of the present disclosure, there is provided a display apparatus including:

a screen assembly as described above in the first aspect or in various alternative implementations of the first aspect.

The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects:

the screen assembly includes: the device comprises an OLED screen, a foam layer, a rigid supporting layer and an integrated circuit board electrically connected with the OLED screen; one side of the foam layer is bonded with the OLED screen, and the other side of the foam layer is bonded with one side of the rigid supporting layer; the other side of the rigid supporting layer is attached to the integrated circuit board, namely the rigid supporting layer is arranged between the foam layer and the integrated circuit board, pressure of the integrated circuit board to the foam layer is relatively uniformly dispersed to the bonding area of the rigid supporting layer and the foam layer by the rigid supporting layer, so that in the bonding area of the OLED screen and the foam layer, the pressure of the foam layer on each point is relatively uniform, wrinkles are not easy to generate, and the phenomenon that the OLED screen is orange-figured when the screen is closed is greatly relieved.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.

FIG. 1 is a schematic view of an OLED screen assembly according to the related art;

FIG. 2 is a schematic diagram illustrating the structure of a screen assembly according to one exemplary embodiment;

FIG. 3 is a schematic diagram illustrating the structure of a screen assembly according to one exemplary embodiment;

FIG. 4 is an assembled side view of the screen assembly according to the embodiment of FIG. 3;

fig. 5 is an illustration of a display device shown in accordance with an example embodiment.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. The following description refers to the accompanying drawings in which the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

Fig. 2 is a schematic structural diagram illustrating a screen assembly, which may be an OLED screen assembly, according to an exemplary embodiment, and which may be installed in various display devices, for example, a smart phone, a tablet computer, an e-book reader, various wearable devices, and the like. As shown in fig. 2, the screen assembly may include: an Organic Light Emitting Diode (OLED) screen 210, a foam layer 220, a rigid support layer 230 and an integrated circuit board 240 electrically connected with the OLED screen 210;

one side of the foam layer 220 is bonded to the OLED screen 210, and the other side of the foam layer 220 is bonded to one side of the rigid support layer 230;

the other side of the rigid support layer 230 is attached to the integrated circuit board 240.

In order to save the area size of the front surface of the display device, the integrated circuit board 240 for controlling the OLED screen 210 in the screen assembly is disposed at the rear surface of the OLED screen 210, and when mounted, the integrated circuit board 240 easily presses the OLED screen 210 side. However, there is a size difference between the integrated circuit board 240 and the OLED screen 210, the size of the integrated circuit board 240 is generally smaller than that of the OLED screen 210, and the surface of the integrated circuit board 240 is generally not flat, and if the foam layer 220 is directly filled between the integrated circuit board 240 and the OLED screen 210, a position of the foam layer 220 bonded to the integrated circuit board 240 is wrinkled due to uneven squeezing of the integrated circuit board 240, so that the OLED screen 210 generates an orange-peel phenomenon when the screen is closed.

In the embodiment of the present disclosure, the rigid support layer 230 is disposed between the foam layer 220 and the integrated circuit board 240, wherein the foam layer 220 and the rigid support layer 230 can completely cover the OLED screen 210, the pressure of the integrated circuit board 240 on the foam layer 220 is relatively uniformly dispersed by the rigid support layer 230 to an area where the rigid support layer 230 is bonded to the foam layer 220, that is, the area where the OLED screen 210 is bonded to the foam layer 220, and the pressure applied to each point by the foam layer 220 is relatively uniform, so that wrinkles are not easily generated, thereby greatly alleviating a orange-peel phenomenon generated when the OLED screen 210 is in a screen-off state.

In summary, the screen assembly provided by the embodiment of the present disclosure includes: the device comprises an OLED screen, a foam layer, a rigid supporting layer and an integrated circuit board electrically connected with the OLED screen; one side of the foam layer is bonded with the OLED screen, and the other side of the foam layer is bonded with one side of the rigid supporting layer; this integrated circuit board is laminated to the opposite side of this rigidity supporting layer, sets up the rigidity supporting layer between bubble cotton layer and integrated circuit board promptly, and the pressure of integrated circuit board to the cotton layer of bubble is by the relatively even dispersion of rigidity supporting layer to this rigidity supporting layer and the cotton layer bonded region of bubble for in OLED screen and the cotton layer bonded region of bubble, the pressure that the cotton layer of bubble received on each point is relatively even, is difficult to produce the fold, thereby very big release OLED screen produces the orange line phenomenon when the screen is closed the state.

Fig. 3 is a schematic structural diagram illustrating a screen assembly, which may be an OLED screen assembly, according to an exemplary embodiment, and which may be installed in various display devices, for example, a smart phone, a tablet computer, an e-book reader, various wearable devices, and the like. As shown in fig. 3, the screen assembly may include: the OLED display comprises an OLED screen 310, a foam layer 320, a rigid support layer 330 and an integrated circuit board 340 electrically connected with the OLED screen 310;

one side of the foam layer 320 is bonded to the OLED screen 310, and the other side of the foam layer 320 is bonded to one side of the rigid support layer 330;

the other side of the rigid support layer 330 is attached to the integrated circuit board 340.

In order to save the area size of the front surface of the display device, the integrated circuit board 340 for controlling the OLED screen 310 in the screen assembly is disposed at the rear surface of the OLED screen 310, and when mounted, the integrated circuit board 340 easily presses the OLED screen 310 side. However, there is a size difference between the integrated circuit board 340 and the OLED screen 310, the size of the integrated circuit board 340 is generally smaller than that of the OLED screen 310, and the surface of the integrated circuit board 340 is generally not flat, if the foam layer 320 is directly filled between the integrated circuit board 340 and the OLED screen 310, a position of the foam layer 320 bonded to the integrated circuit board 340 may be wrinkled due to uneven squeezing of the integrated circuit board 340, which may cause an orange-peel phenomenon to occur when the OLED screen 310 is in a screen-off state.

In the embodiment of the present disclosure, the rigid support layer 330 is disposed between the foam layer 320 and the integrated circuit board 340, wherein the foam layer 320 and the rigid support layer 330 can completely cover the OLED screen 310, the pressure of the integrated circuit board 340 on the foam layer 320 is relatively uniformly dispersed by the rigid support layer 330 to the area where the rigid support layer 330 is bonded to the foam layer 320, that is, the area where the OLED screen 310 is bonded to the foam layer 320, the pressure applied to each point by the foam layer 320 is relatively uniform, and wrinkles are not easily generated, so that the orange-peel phenomenon of the OLED screen 310 in the screen-off state is greatly reduced.

Optionally, in the embodiment of the present disclosure, the OLED screen 310, the foam layer 320, and the rigid support layer 330 may have the same size, or the foam layer 320 and the rigid support layer 330 may have a size slightly larger than that of the OLED screen 310.

Optionally, one side of the foam layer 320 is bonded to the OLED screen 310 by an air-release tape.

When the foam layer 320 is bonded to the OLED screen 310, bubbles may exist between the foam layer 320 and the OLED screen 310 due to an assembling process, and the like, and the foam layer 320 may also be wrinkled, so that the OLED screen 310 may have orange-peel phenomenon when the screen is in a closed state.

In order to alleviate the orange-peel phenomenon caused by the bubbles between the foam layer 320 and the OLED screen 310, according to the scheme shown in the embodiment of the disclosure, one side of the foam layer 320 and the OLED screen 310 are bonded by the exhaust tape, and the exhaust tape can absorb and discharge the bubbles remaining during the assembly between the foam layer 320 and the OLED screen 310, so as to reduce the wrinkles on the side where the foam layer 320 is bonded to the OLED screen 310, and further reduce the orange-peel phenomenon generated by the OLED screen 310 in the screen-off state.

Optionally, the other side of the foam layer 320 is bonded to one side of the rigid support layer 330 by a venting tape.

Similarly, when the foam layer 320 is adhered to the rigid support layer 330, air bubbles may exist between the foam layer 320 and the rigid support layer 330 due to an assembly process, etc., which may cause the OLED screen 310 to generate orange peel in the off state of the screen. In contrast, according to the scheme shown in the embodiment of the present disclosure, the other side of the foam layer 320 and the rigid support layer 330 are bonded by the exhaust tape, and the exhaust tape can absorb and discharge air bubbles remaining when the foam layer 320 and the rigid support layer 330 are assembled, so as to reduce wrinkles on the side of the foam layer 320 bonded to the rigid support layer 330, and further reduce the orange peel phenomenon generated when the OLED screen 310 is in the screen-off state.

Optionally, the rigid support layer 330 is a rigid conductive foil, and the rigid conductive foil is electrically connected to the integrated circuit board 340.

Alternatively, the rigid conductive foil may be electrically connected to a ground trace in the integrated circuit board 340.

ESD (Electro-Static discharge) is considered as a potential killer of the largest quality of electronic products, Static electricity is easily generated in a screen assembly during the assembling process of the screen assembly and the use process of a display device, and the Static electricity generally affects the operation of the screen assembly and the whole display device, so that the operation of the screen assembly and other components of the display device is unstable and even damaged, for example, the display device often crashes, automatically shuts down, has poor voice quality, has loud noise, has good and bad signal times, makes a key go wrong, and the like, and most of the problems are related to Static electricity damage.

In the electrostatic protection, it is one of the effective means to prevent the electrostatic damage to lead out the static electricity in time. In the embodiment of the present disclosure, the rigid conductive foil is used as a rigid supporting layer, and the rigid supporting layer is electrically connected to the ic board, for example, the rigid supporting layer can be electrically connected to a ground line in the ic board, so that static electricity generated in the screen assembly can be timely conducted out during the assembly and use of the screen assembly, thereby avoiding static electricity damage.

Optionally, the rigid conductive foil is bonded to the integrated circuit board 330 by a conductive venting tape.

In the embodiment of the present disclosure, in order to reduce the wiring and simplify the assembly complexity, the rigid conductive foil may be bonded to the integrated circuit board 330 by using the conductive exhaust tape, so that static electricity generated during the assembly and use of the screen assembly can be led out through the conductive exhaust tape, and the assembly process requirements of the screen assembly are simplified while the electrostatic protection performance of the display device is ensured.

In addition, the conductive venting tape may also vent air bubbles between the rigid conductive foil and the integrated circuit board 330.

Optionally, the rigid conductive foil is a conductive copper foil.

In the embodiment of the disclosure, the conductive copper foil can be used as the rigid conductive foil, and since the copper material has good conductivity and good rigidity and stretching resistance, the screen assembly can meet better electrostatic protection requirements while the orange-peel phenomenon of the OLED screen in the closed state of the screen is effectively reduced.

Alternatively, in the embodiment of the present disclosure, the rigid conductive foil is not limited to the electro-copper foil, and may be other conductive metal or non-metal materials as long as the rigid conductive foil satisfies both rigidity and conductivity.

Optionally, the foam layer 320 is made of a closed-cell foam material.

Because each air hole in the closed-cell foam is closed and not communicated, when the closed-cell foam is pressed, the closed-cell foam is not easy to deform and has good wrinkle resistance, and therefore, in the embodiment of the disclosure, the closed-cell foam can be used as the material of the foam layer 320.

Optionally, the OLED screen is a flexible OLED screen.

Optionally, the integrated circuit board is a flexible circuit board FPC.

Optionally, the OLED screen 310 is further covered with a cover glass on the side opposite to the side where the foam layer 320 is bonded.

For example, please refer to fig. 4, which illustrates an assembled side view of the screen assembly shown in the embodiments of the present disclosure.

To sum up, the screen assembly provided by the embodiment of the present disclosure includes: the device comprises an OLED screen, a foam layer, a rigid supporting layer and an integrated circuit board electrically connected with the OLED screen; one side of the foam layer is bonded with the OLED screen, and the other side of the foam layer is bonded with one side of the rigid supporting layer; this integrated circuit board is laminated to the opposite side of this rigidity supporting layer, sets up the rigidity supporting layer between bubble cotton layer and integrated circuit board promptly, and the pressure of integrated circuit board to the cotton layer of bubble is by the relatively even dispersion of rigidity supporting layer to this rigidity supporting layer and the cotton layer bonded region of bubble for in OLED screen and the cotton layer bonded region of bubble, the pressure that the cotton layer of bubble received on each point is relatively even, is difficult to produce the fold, thereby very big release OLED screen produces the orange line phenomenon when the screen is closed the state.

In addition, this screen subassembly that this disclosed embodiment provided, through the adhesion of exhaust sticky tape between bubble cotton layer one side and the OLED screen, through the adhesion of exhaust sticky tape between bubble cotton layer opposite side and the one side of rigidity supporting layer, remaining bubble when the assembly between bubble cotton layer and the OLED screen can be absorbed and discharged to the exhaust sticky tape, reduces the fold of the one side of bubble cotton layer bonding OLED screen, further alleviates the OLED screen and produces the orange line phenomenon when the screen is closed.

In addition, according to the screen assembly provided by the embodiment of the disclosure, the rigid supporting layer is the rigid conductive foil, and the rigid conductive foil is electrically connected with the integrated circuit board, so that static electricity generated in the screen assembly can be led out in time in the assembling and using processes of the screen assembly, and the electrostatic damage is avoided.

Fig. 5 is a schematic structural diagram illustrating a display device according to an exemplary embodiment, and the display device 50 includes a screen assembly 51 and a device frame 52, where the screen assembly 51 may be the screen assembly shown in fig. 2 or fig. 3.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A screen assembly, the screen assembly comprising: the device comprises an organic light-emitting diode screen, a foam layer, a rigid supporting layer and an integrated circuit board electrically connected with the organic light-emitting diode screen;

one side of the foam layer is bonded with the organic light-emitting diode screen, and the other side of the foam layer is bonded with one side of the rigid supporting layer through an exhaust adhesive tape;

the other side of the rigid support layer is attached to the integrated circuit board, and the rigid support layer is used for dispersing the pressure of the integrated circuit board on the foam layer.

2. A screen assembly as recited in claim 1, wherein the foam layer side is bonded to the oled screen by an air release tape.

3. A screen assembly as recited in claim 1, wherein the rigid support layer is a rigid conductive foil and the rigid conductive foil is electrically connected to the integrated circuit board.

4. A screen assembly as recited in claim 3, wherein the rigid conductive foil is bonded to the integrated circuit board with a conductive venting tape.

5. A screen assembly as recited in claim 3, wherein the rigid conductive foil is a conductive copper foil.

6. A screen assembly as recited in claim 1, wherein the foam layer is a closed cell foam.

7. A screen assembly as recited in claim 1, wherein the organic light emitting diode screen is a flexible organic light emitting diode screen.

8. A screen assembly as recited in claim 1, wherein the integrated circuit board is a flexible circuit board, FPC.

9. A display device, characterized in that the display device comprises:

a screen assembly as claimed in any one of claims 1 to 8.