CN214504067U

CN214504067U - Display module and electronic equipment

Info

Publication number: CN214504067U
Application number: CN202121085815.6U
Authority: CN
Inventors: 杨文强
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2021-05-19
Filing date: 2021-05-19
Publication date: 2021-10-26
Anticipated expiration: 2031-05-19

Abstract

The application discloses display module assembly and electronic equipment, display module assembly includes: the array substrate, the shielding layer and the driving circuit are arranged on the substrate; the array substrate comprises a display area and a non-display area; the driving circuit is connected to the non-display area; the shielding layer is formed in the non-display area and grounded, and the shielding layer is used for weakening an electromagnetic signal of the driving circuit. This application can reduce the electromagnetic interference of drive circuit to the antenna through setting up the shielding layer, promotes the signal intensity of antenna and electronic equipment's reliability.

Description

Display module and electronic equipment

Technical Field

The application belongs to the technical field of electronic equipment, concretely relates to display module assembly and electronic equipment.

Background

With the rapid development of electronic devices, the full-screen technology is more and more popular. In the prior art, the display module of the electronic equipment generally comprises a display area and a non-display area, and the driving chip of the display module is arranged in the non-display area of the display module, so that the narrow frame design of the electronic equipment can be realized by reducing the width of the non-display area of the display module, and the comprehensive screen effect of the electronic equipment is improved. However, the frame of the electronic device is narrowed, so that the driving chip is close to the middle frame of the electronic device, in practical applications, the antenna of the electronic device is usually disposed in the middle frame area of the electronic device, and the driving chip is close to the antenna, which is easy to cause electromagnetic interference to the antenna, and weaken the signal of the electronic device.

SUMMERY OF THE UTILITY MODEL

The application aims at providing a display module and electronic equipment, solves the problem that drive chip causes electromagnetic interference to the antenna among the prior art at least.

In order to solve the technical problem, the present application is implemented as follows:

in a first aspect, an embodiment of the present application provides a display module, including:

the array substrate, the shielding layer and the driving circuit are arranged on the substrate; wherein the content of the first and second substances,

the array substrate comprises a display area and a non-display area;

the driving circuit is connected to the non-display area;

the shielding layer is formed in the non-display area and grounded, and the shielding layer is used for weakening an electromagnetic signal of the driving circuit.

In a second aspect, an embodiment of the present application provides an electronic device, including: the display module is provided.

In an embodiment of the present application, the driving circuit is connected to the non-display area, the shielding layer is formed in the non-display area of the array substrate, and the shielding layer is grounded, so that the electromagnetic signal of the driving circuit can be attenuated by the shielding layer. In practical application, in order to realize a full-screen design, under the condition that the driving circuit is close to the antenna on the electronic equipment middle frame, the shielding layer can weaken the electromagnetic signal of the driving circuit, reduce the electromagnetic interference between the driving circuit and the antenna on the electronic equipment middle frame, and improve the signal intensity of the antenna and the reliability of the electronic equipment.

Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.

Drawings

The above and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural diagram of a display module according to an embodiment of the present application;

fig. 2 is a schematic structural diagram of an array substrate according to an embodiment of the present disclosure;

fig. 3 is a second schematic structural diagram of an array substrate according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present application.

Description of reference numerals:

1-array substrate, 11-display region, 12-non-display region, 13-pixel electrode, 14-common electrode, 15-thin film transistor, 16-passivation layer, 17-flat layer, 18-glass substrate, 19-insulating layer, 2-shielding layer, 3-driving circuit, 31-driving chip, 311-output terminal, 32-multiplexer, 33-circuit board, 331-grounding terminal, 4-cover plate, 5-color film substrate, 6-liquid crystal layer, 61-seal, 7-containing space, 71-containing region, 8-middle frame, 81-upper frame, 82-lower frame, 83-left frame, 84-right frame and 9-shading layer.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present 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.

In the specification and claims of this application, "and/or" means at least one of the connected objects, the character "/" generally means that the former and latter related objects are in an "or" relationship.

In the description of the present application, it is to be understood that the terms "upper", "lower", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred devices or elements 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.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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.

The display module and the electronic device according to the embodiment of the present application are described below with reference to fig. 1 to 4.

As shown in fig. 1, a schematic structural diagram of a display module according to some embodiments of the present application is shown, and as shown in fig. 1, an embodiment of the present application provides a display module, which may specifically include: the array substrate 1, the shielding layer 2 and the driving circuit 3; the array substrate 1 may include a display region 11 and a non-display region 12; the driving circuit 3 may be connected to the non-display area 12; the shielding layer 2 may be formed in the non-display region 12, and the shielding layer 2 may be grounded, and the shielding layer 2 may be used to attenuate an electromagnetic signal of the driving circuit 3.

In the embodiment of the present application, the driving circuit 3 is connected to the non-display area 12 of the array substrate 1, the shielding layer 2 is formed on the non-display area 12, and the shielding layer 2 is grounded, so that the shielding layer 2 can attenuate the electromagnetic signal of the driving circuit 3. In practical application, in order to realize a full-screen design, when the driving circuit 3 is close to the antenna on the electronic device middle frame 8, the shielding layer 2 can weaken the electromagnetic signal of the driving circuit 3, reduce the electromagnetic interference between the driving circuit 3 and the antenna on the electronic device middle frame 8, and improve the signal strength of the antenna and the reliability of the electronic device.

Specifically, the shielding layer 2 in the embodiment of the present application is grounded, and the electromagnetic signal generated by the driving circuit 3 can be weakened through electrostatic shielding, so that the intermodulation interference of the driving circuit 3 to the antenna TRX (Transfer & Receive) is reduced, and the reliability and the user experience are improved. In addition, the risk of the display module being interfered by the antenna can be reduced, and the ESD (Electro-Static discharge) reliability of the display module is improved.

The Display module in the embodiment of the present application may be an lcm (Liquid Crystal Display), that is, an LCD (Liquid Crystal Display) Display module or a Liquid Crystal module, and refers to a component for assembling peripheral circuits such as a Liquid Crystal Display device, a connecting member, a control and drive device, a circuit board, a backlight source, a structural member, and the like. In practical application, the display module can be applied to electronic equipment in various fields such as communication equipment (mobile phones and telephones), household appliances (air conditioners), consumer electronics (music players and electronic game machines), education electronics (electronic dictionaries), instruments and meters (electric meters and universal meters), tax control equipment (oiling machines and cash registers) and the like.

The array substrate 1 in the embodiment of the present application may generally include a glass substrate 18 and a thin film transistor layer disposed on the glass substrate 18, wherein a large number of data lines, gates, source/drain electrodes, and the like are laid in the thin film transistor layer, and in a use process of the display module, currents carrying driving signals are led into the data lines, the gates, and the source/drain electrodes to control a light emitting display process of the display module.

Specifically, the array substrate 1 may include a display area 11 and a non-display area 12, where the display area 11 is disposed corresponding to a liquid crystal display device of the display module, and is used to control deflection of the liquid crystal display device to perform dimming; the non-display area 12 may be used for arranging the driving circuit 3 of the display module.

The shielding layer 2 in the embodiment of the present application is disposed in the non-display area 12 of the array substrate 1 and is grounded, and the driving circuit 3 is connected to the non-display area 12, so that the shielding layer 2 is disposed close to the driving circuit 3, so that the shielding layer 2 can protect and ground the electromagnetic signal generated by the driving circuit 3 to weaken the electromagnetic signal generated by the driving circuit 3.

Further, the shielding layer 2 may be disposed flush with the antenna, and the shielding layer 2 may weaken the electromagnetic signal of the driving circuit 3 by grounding the electromagnetic signal generated by the driving circuit 3. The shielding layer 2 may also be provided between the driving circuit 3 and the antenna, so that the shielding layer 2 may shield the electromagnetic signal generated by the driving circuit 3. Alternatively, the shielding layer 2 may be a cavity with a hollow structure, and the driving circuit 3 may be disposed in the cavity to shield the electromagnetic signal of the driving circuit 3. The method can be specifically set according to actual requirements, and is not specifically limited in this embodiment.

The driving circuit 3 in the embodiment of the present application may be located between the main circuit and the control circuit of the display module, and is an intermediate circuit for amplifying a signal of the control circuit.

Alternatively, the array substrate 1 may include: a pixel electrode 13, a common electrode 14 and a thin film transistor 15, the pixel electrode 13 and the common electrode 14 may be provided in the display region 11; a passivation layer 16 may be disposed between the pixel electrode 13 and the common electrode 14, and a planarization layer 17 may be disposed between the common electrode 14 and the thin film transistor 15; the passivation layer 16, the common electrode 14, and the planarization layer 17 may each be provided with a via hole through which the thin film transistor 15 may be connected with the pixel electrode 13.

In the embodiment of the present application, the thin film transistor 15 is connected to the pixel electrode 13, so that the thin film transistor 15 can control the magnitude of the electric field formed between the pixel electrode 13 and the common electrode 14 by controlling the current magnitude of the pixel electrode 13, and further control the liquid crystal deflection of the display module to perform dimming.

Specifically, the passivation layer 16 is disposed between the pixel electrode 13 and the common electrode 14, so that a short circuit between the pixel electrode 13 and the common electrode 14 can be avoided. A planarization layer 17 is provided between the common electrode 14 and the thin film transistor 15 to facilitate the arrangement of the common electrode 14 and to prevent a short circuit between the common electrode 14 and the thin film transistor 15.

Specifically, the array substrate 1 may include a glass substrate 18, and the thin film transistor 15, the planarization layer 17, the common electrode 14, the passivation layer 16, and the pixel electrode 13 may be sequentially stacked on the glass substrate 18, wherein the common electrode 14 and the pixel electrode 13 may be provided only in the display region 11.

Further, the passivation layer 16, the common electrode 14 and the planarization layer 17 are respectively provided with a via hole, so that the thin film transistor 15 can be connected to the pixel electrode 13 through the via hole.

Specifically, the thin film transistor 15 may include a source electrode, a gate electrode, a drain electrode, and an active layer, and the drain electrode may be connected to the pixel electrode 13. As shown in fig. 1, a light shielding layer 9 is disposed in the conductor region, and the light shielding layer 9 can be used for shielding light from entering the active layer, so as to improve the performance and the service life of the thin film transistor 15.

Further, an insulating layer 19 is formed between the source, the gate and the drain of the thin film transistor 15, so that the source, the gate and the drain are independent from each other, and a short circuit phenomenon among the source, the gate and the drain is effectively avoided. In practical applications, the thin film transistor 15 may include an N-type transistor and a P-type transistor, which may be specifically set according to practical requirements, and this is not specifically limited in this embodiment of the present application.

Specifically, the material layer of the pixel electrode 13 may be an ITO (indium tin oxide, or tin-doped indium oxide) material, and the material layer of the common electrode 14 may also be an ITO material.

As shown in fig. 2, the shielding layer 2 may be disposed flush with the pixel electrode 13, and the shielding layer 2 may cover the passivation layer 16.

In the embodiment of the present application, the shielding layer 2 is flush with the pixel electrode 13, and in practical application, the shielding layer 2 can be directly designed into the manufacturing process of the ARRAY (ARRAY) process, so that the shielding layer 2 and the pixel electrode 13 can be formed simultaneously, the process is simple, and the cost is low.

Specifically, the shield layer 2 can be directly designed into the fabrication process of the ARRAY process by programming.

For example, in the fabrication process of the ARRAY process, after the passivation layer 16 is formed, the passivation layer 16 may be covered with ITO traces, where the ITO traces in the display area 11 and the ITO traces in the non-display area 12 are independent of each other, the ITO traces in the display area 11 are used as the pixel electrodes 13, and the ITO traces in the non-display area 12 are grounded to form the shielding layer 2.

As shown in fig. 3, the shielding layer 2 may be disposed flush with the common electrode 14, and the shielding layer 2 may be disposed between the planarization layer 17 and the passivation layer 16.

In the embodiment of the present application, the shielding layer 2 is flush with the common electrode 14, and in practical application, the shielding layer 2 can be directly designed in the manufacturing process of the ARRAY (ARRAY) process, so that the shielding layer 2 and the common electrode 14 can be formed simultaneously, the process is simple, and the cost is low.

For example, in the fabrication process of the ARRAY process, after the planarization layer 17 is formed, the planarization layer 17 may be covered with ITO traces, where the ITO traces in the display area 11 and the ITO traces in the non-display area 12 are independent of each other, the ITO traces in the display area 11 are used as the common electrode 14, and the ITO traces in the non-display area 12 are grounded to form the shielding layer 2.

Alternatively, the drive circuit 3 may include: a driver chip 31 and a multiplexer 32; the multiplexer 32 may be electrically connected to the array substrate 1 and the output terminal 311 of the driving chip 31, respectively.

In the embodiment of the present application, the multiplexer 32 is electrically connected to the array substrate 1 and the output terminal 311 of the driving chip 31, respectively, so that the driving chip 31 is electrically connected to the array substrate 1, and the driving chip 31 can transmit signals to the array substrate 1.

Specifically, the driving chip 31 may be a driving IC (Integrated Circuit) of the display module. As shown in fig. 4, the output terminal 311 refers to an external output wiring of the driver IC. The multiplexer 32 can reduce the data driving pin output of the driving IC by time-sharing switching.

Specifically, the driving circuit 3 is disposed in the accommodating area 71 shown in fig. 1, the output terminal 311 of the driving chip 31 and the multiplexer 32 are both disposed in the accommodating area 71, and the corresponding traces and device layout of the output terminal 311 of the driving chip 31 and the multiplexer 32 are both in the accommodating area 71. The shielding layer 2 covers the accommodating area 71 and forms a ground shield, so that the electromagnetic intermodulation interference between the driving circuit 3 and the antenna is reduced and the signal quality of the electronic equipment is improved by using the electromagnetic shielding principle.

Specifically, the driving circuit 3 may further include a circuit board 9, and the circuit board 9 may be a flexible circuit board. Specifically, the shield layer 2 is connected to the ground terminal 331 of the circuit board 9.

Alternatively, the shielding layer 2 may be an ITO structure. In practical applications, the shielding layer 2 is of an ITO structure, so that the shielding layer 2 can be used as a conductor to receive the electromagnetic signal generated by the driving circuit 3 and ground the electromagnetic signal to weaken the electromagnetic signal of the driving circuit 3. Moreover, the shielding layer 2 is of an ITO structure, so that the material of the shielding layer 2 is the same as that of the pixel electrode 13 or the common electrode 14, and the shielding layer 2 and the pixel electrode 13 or the shielding layer 2 and the common electrode 14 are formed at the same time in the array process.

In practical applications, the shielding layer 2 may also be transparent conductive film (TCO) glass, which is not particularly limited in the embodiments of the present application.

Optionally, the ground trace of the shielding layer 2 may be a metal trace. In practical application, the grounding circuit of the shielding layer 2 is a metal wire, so that the shielding layer 2 is convenient to conduct a circuit, grounding is realized, and electromagnetic signals generated by the driving circuit 3 are weakened.

Specifically, the ground line of the shielding layer 2 may use a metal line M2(metal 2 line, a metal line used for a data line layer, for example, a metal such as aluminum or copper) line or an ITO line, and may be specifically set according to actual requirements, which is not specifically limited in this embodiment of the present application.

As shown in fig. 1, the display module may further include: a cover plate 4, a color film substrate 5 and a liquid crystal layer 6; the liquid crystal layer 6 and the color film substrate 5 are both arranged in the display area 11, and the liquid crystal layer 6 can be arranged between the array substrate 1 and the color film substrate 5; the cover plate 4 covers one side of the color film substrate 5, which is far away from the liquid crystal layer 6, the cover plate 4, the color film substrate 5, the liquid crystal layer 6 and the non-display area 12 can enclose to form an accommodating space 7, and the accommodating space 7 can be used for accommodating the driving circuit 3.

In the embodiment of the present application, the electric field generated between the pixel electrode 13 and the common electrode 14 in the array substrate 1 can control the liquid crystal deflection in the liquid crystal layer 6, so as to perform dimming. The color film substrate 5 can select a small-range band light wave which needs to pass through, and reflect other bands which are not desired to pass through, so that the display module can display a color picture.

Specifically, the color filter substrate 5 may be an optical filter with a light surface color, for example, the color filter substrate 5 may be an RGB filter, which can filter light waves of red, green, and blue. Alternatively, the color filter substrate 5 may be an infrared filter, and the type of the color filter substrate 5 may be specifically set according to actual requirements, which is not specifically limited in this embodiment of the application.

In particular, the liquid crystal layer 6 may be encapsulated with a liquid crystal material, as shown in fig. 1, the liquid crystal layer 6 may include a seal 61, and the seal 61 may be used to encapsulate liquid crystal. Specifically, the seal 61 may be a liquid crystal dam. In practical applications, after some materials are dissolved in a molten state or by a solvent, although the rigidity of the solid materials is lost, the easy mobility of the liquid is obtained, and the anisotropic ordered arrangement of the molecules of the partially crystalline materials is maintained, so that an intermediate state with the partial properties of the crystal and the liquid is formed, and the oriented ordered fluid existing in the process of converting the solid state into the liquid state is called liquid crystal.

The display module that this application embodiment provided includes following advantage at least:

On the other hand, the embodiment of the application further provides electronic equipment, and the electronic equipment can specifically comprise the display module.

Optionally, the electronic device may further include: a middle frame 8 and an antenna; the antenna may be disposed on the middle frame 8, and the antenna may be close to the driving circuit 3 of the display module.

In the embodiment of the application, the driving circuit 3 of the display module is close to the antenna on the middle frame 8 of the electronic equipment, so that the frame width of the electronic equipment can be reduced, and the comprehensive screen effect of the electronic equipment is improved.

Specifically, the driving circuit 3 is arranged in the non-display area 12 of the display module, the shielding layer 2 is formed in the non-display area 12, the shielding layer 2 is grounded, electromagnetic signals of the driving circuit 3 can be weakened, electromagnetic interference of the driving circuit 3 on the antenna is avoided, and the signal intensity of the antenna and the reliability of the electronic device are improved.

As shown in fig. 4, the middle frame 8 of the electronic device may include an upper frame 81, a lower frame 82, a left frame 83, and a right frame 84, and in practical applications, the better the overall screen effect of the electronic device is, the narrower the width of the lower frame 82 is, the closer the driving circuit 3 is to the lower frame 82 of the middle frame 8. Specifically, the lower frame 82 of the middle frame 8 is usually disposed on the communication antenna, and the shielding layer 2 can weaken the electromagnetic interference of the driving circuit 3 on the communication antenna and improve the communication signal of the electronic device. In practical application, the electronic device further includes an NFC (Near Field Communication) antenna, a bluetooth antenna, and the like, and when the NFC antenna and the bluetooth antenna are close to the driving circuit 3, the shielding layer 2 may also be used to weaken battery interference caused by the driving circuit 3 to the NFC antenna and the bluetooth antenna.

The electronic equipment provided by the embodiment of the application at least comprises the following advantages:

Other configurations, such as a display screen, a main board, and the like, and operations of the electronic device according to the embodiments of the present application are known to those skilled in the art and will not be described in detail herein.

In the description herein, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.

Claims

1. A display module, comprising: the array substrate, the shielding layer and the driving circuit are arranged on the substrate; wherein the content of the first and second substances,

the array substrate comprises a display area and a non-display area;

the driving circuit is connected to the non-display area;

2. The display module of claim 1, wherein the array substrate comprises: the pixel electrode and the common electrode are arranged in the display area;

a passivation layer is arranged between the pixel electrode and the common electrode, and a flat layer is arranged between the common electrode and the thin film transistor;

the passivation layer, the common electrode and the flat layer are all provided with through holes, and the thin film transistor is connected with the pixel electrode through the through holes.

3. The display module of claim 2, wherein the shielding layer is disposed flush with the pixel electrode, and the passivation layer covers the shielding layer.

4. The display module of claim 2, wherein the shielding layer is disposed flush with the common electrode, and the shielding layer is disposed between the planarization layer and the passivation layer.

5. The display module of claim 1, wherein the driving circuit comprises: a driving chip and a multiplexer;

the multiplexer is electrically connected with the array substrate and the output terminal of the driving chip respectively.

6. The display module of claim 1, wherein the shielding layer is an ITO structure.

7. The display module of claim 1, wherein the ground line of the shielding layer is a metal trace.

8. The display module assembly of claim 1, wherein the display module assembly further comprises: the liquid crystal display panel comprises a cover plate, a color film substrate and a liquid crystal layer;

the liquid crystal layer and the color film substrate are both arranged in the display area, and the liquid crystal layer is arranged between the array substrate and the color film substrate;

the cover plate covers one side, far away from the liquid crystal layer, of the color film substrate, the cover plate, the color film substrate, the liquid crystal layer and the non-display area are enclosed to form an accommodating space, and the accommodating space is used for accommodating the driving circuit.

9. An electronic device, comprising the display module according to any one of claims 7 to 8.

10. The electronic device of claim 9, wherein the electronic device comprises: a middle frame and an antenna;

the antenna is arranged on the middle frame and is close to the driving circuit of the display module.