TWM594161U - Display module and terminal device - Google Patents

Abstract

A display module is provided according to the present disclosure, comprising: a display panel provided with a back panel, a driving chip pressed on the display panel, an FPC electrically connected to the driving chip, and an isolation layer that fits a back binding zone set on the FPC, the isolation layer is an insulating layer or a conductive layer connected to a GND of the FPC. In a practical application, with the solution of the present disclosure, the isolation layer is disposed on the back bonding zone of the FPC, so that an ESD charge conducted to the FPC via the back plane is effectively blocked when ESD occurs, thereby the charge is prevented from being released to the driving chip. A terminal device is also provided according to the present disclosure, having the same advantageous effects as the above display module.

Description

Display module and terminal equipment

This creation relates to the field of touch display, in particular to a display module and terminal equipment.

With the continuous development of display modules, display modules are more and more widely used in terminal equipment, and customers have higher and higher requirements for ESD (Electro Static Discharge) performance. In the existing display module, the driver chip is die-bonded on the display panel without packaging protection, which is a weak point in the entire display module, so the ESD performance of the driver chip is improved, or the driver chip is protected from ESD Interference has become a problem to be solved. In the prior art, the FPC binding connection on the back of the display module is only coated with line glue, and there is no other way to protect it.

As the structure and materials of display modules become more and more complicated, when the backlight material contains conductive materials such as silver reflective sheets, charges will be collected when ESD occurs, but these conductive materials do not effectively connect to the GND discharge path, so they will It is released to the FPC GND near the FPC bonding area on the back of the display module, and even ESD charge enters the driver chip through the interface of the bonding area, damaging the internal circuit of the driver chip.

Therefore, how to provide a solution to the above technical problem is a problem that those skilled in the art need to solve at present.

The purpose of this creation is to provide a display module with an isolation layer on the back binding area of the FPC to effectively block the ESD charge conducted to the FPC through the backplane and prevent the charge from being discharged to the driver chip. Another purpose of this creation is to provide a terminal device including the above display module.

In order to solve the above technical problems, the present invention provides a display module, which includes: a display panel provided with a backplane, a driving chip pressed on the display panel, an FPC electrically connected to the driving chip, and a lamination setting An isolation layer on the binding area on the back of the FPC, where the isolation layer is an insulating layer or a conductive layer connected to the GND of the FPC.

Preferably, a light-shielding tape is provided on the outer periphery of the display panel, and the light-shielding tape extends in the FPC direction to form the insulating layer.

Preferably, the insulating layer is insulating tape or yellow tape.

Preferably, the conductive layer is conductive tape or copper foil.

Preferably, the driving chip is an LCD driving chip or an IDC driving chip or an AMOLED driving chip.

Preferably, the display panel is an LCD display panel.

Preferably, the display panel is an AMOLED display panel.

Preferably, the display module is integrated with a touch module.

In order to solve the above technical problems, the present invention provides a terminal device, including the display module as described in any one of the above.

Preferably, the terminal device is a mobile phone.

This creation provides a display module, including: a display panel provided with a backplane, a driver chip pressed onto the display panel, an FPC electrically connected to the driver chip, and an isolation provided on the binding area on the back of the FPC Layer, the isolation layer is an insulating layer or a conductive layer connected to the GND of the FPC. In practical applications, using this creative solution, an isolation layer is provided on the back binding area of the FPC, so that the ESD charge conducted to the FPC through the backplane is effectively blocked to prevent the charge from being discharged to the driving chip. This creation also provides a terminal device, which has the same beneficial effects as the above display module.

In order to more clearly explain the technical solution in this creative embodiment, the following will briefly introduce the drawings required in the prior art and the embodiments. Obviously, the drawings in the following description are only some implementations of this creation For example, for a person of ordinary skill in the art, without paying any creative work, other drawings can also be obtained according to these drawings.

The core of this creation is to provide a display module with an isolation layer on the back binding area of the FPC to effectively block the ESD charge conducted to the FPC through the backplane and prevent the charge from being discharged to the driver chip. Another core of this creation is to provide a terminal device including the above display module.

In order to make the purpose, technical solution and advantages of the creative embodiment more clear, the technical solution in the creative embodiment will be described clearly and completely in conjunction with the drawings in the creative embodiment. Obviously, the described embodiment It is a part of the embodiment of this creation, but not all the embodiments. Based on the embodiments in this creation, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the scope of protection of this creation.

Please refer to FIG. 1 to FIG. 2. FIG. 1 and FIG. 2 are schematic structural diagrams of the back and front of a display module provided by the author. The display module includes:

The display panel 1 provided with a backplane, the driving chip 2 pressed onto the display panel 1, the FPC 3 electrically connected to the driving chip 2, and the isolation layer 4 disposed on the back binding area of the FPC 3 4 is an insulating layer or a conductive layer connected to the GND of the FPC 3.

Specifically, referring to FIG. 3, the display panel 1 in this embodiment may specifically be an LCD display panel, and the back panel of the display panel 1 may include a silver reflection sheet 11, a backlight panel 12, a shading tape 13, and Materials such as polarizer 14, TFT glass 15. In order to prevent the ESD charge from being transferred to the interface of the bonding area of the FPC 3 through the conductive material such as the silver reflective sheet 11 in the backlight material when ESD occurs, and then enter the driving chip 2 and damage the internal circuit of the driving chip 2, this creation is bound on the back of the FPC 3 An isolation layer 4 is provided on the area, and the isolation layer 4 can cover the back binding area of the FPC 3 of the display module, then the ESD charge transmitted through the backlight iron frame, the silver reflective sheet 11 and the like are effectively blocked to prevent the ESD charge from being released to The driving chip 2 can provide an ESD charge discharge path when the isolation layer 4 is a conductive layer connected to the GND of the FPC 3, and this creation significantly improves the ESD performance of the display module.

Further, the display module provided in this embodiment may integrate the functions of the touch module, that is, have the functions of display and touch at the same time.

In other embodiments, the display panel 1 may also use an AMOLED display panel. At this time, the structure of the backplane is different from that of the LCD display panel, but the foregoing technical solution may still be adopted, and an isolation layer is provided on the back binding area of the FPC 3 4. The isolation layer 4 can cover the back binding area of the FPC 3 of the display module, and the ESD charge transmitted through the back plate is effectively blocked to prevent the ESD charge from being discharged to the driving chip 2, when the isolation layer 4 is the GND of the FPC 3 When connected to the conductive layer, it can provide a path for ESD charge discharge. This creation significantly improves the ESD performance of the display module.

On the basis of the above embodiments:

As a preferred embodiment, a light-shielding tape 13 is provided on the outer periphery of the display panel 1, and the light-shielding tape 13 extends in the direction of the FPC 3 to form an insulating layer.

Generally, the outer periphery of the display panel 1 is provided with a light-shielding tape 13, as shown in FIG. To effectively prevent the charge on the backplane from being discharged to the driving chip 2 through the back binding area of the FPC 3 when ESD occurs, prevent the driving chip 2 from being damaged, and improve the ESD performance of the display module. In addition, because the softness of the light-shielding tape 13 does not affect the bending of the original FPC 3 single layer area, followed by binding FOG (FPC on Glass, refers to a process in the module manufacturing process, or Refers to the product shape after this process), it is attached during assembly, so it will not affect the existing binding process.

Specifically, referring to FIG. 5, an insulating tape may be attached to the binding area of the FPC 3 on the back of the display module to isolate the ESD charge, or a conductive tape may be attached to the binding area of the FPC 3 on the back of the display module, and conductive The tape is connected to the FPC GND, so as to give the ESD charge discharge path, thereby significantly improving the ESD performance of the display module.

Of course, in addition to insulating tape, insulating tape can also use yellow adhesive tape and other insulating materials. In addition to conductive tape, copper foil and other conductive materials can be used for the conductive layer, which is not specifically limited in this creation.

As a preferred embodiment, the driving wafer 2 is an LCD driving wafer or an IDC driving wafer or an AMOLED driving wafer.

Correspondingly, the author also provides a terminal device, including the display module as mentioned in any of the above embodiments.

As a preferred embodiment, the terminal device is a mobile phone.

Of course, in addition to being a mobile phone, the terminal device can also be other electronic devices, and this creation is not specifically limited here.

For an introduction to a terminal device provided by this creation, please refer to the above embodiments, and this creation will not be repeated here.

A terminal device provided by this creation has the same beneficial effects as the above display module.

It should also be noted that in this specification, the terms "include", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, article or device that includes a series of elements includes not only those elements, It also includes other elements that are not explicitly listed, or include elements inherent to such processes, objects, or equipment. In the absence of more restrictions, the element defined by the sentence "include one..." does not exclude that there are other identical elements in the process, article or equipment that includes the element.

The above description of the disclosed embodiments enables those skilled in the art to implement or use this creation. Various modifications to these embodiments will be apparent to those skilled in the art. The general principles defined in this document can be implemented in other embodiments without departing from the spirit or scope of the present creation. Therefore, this creation will not be limited to the embodiments shown in this article, but should conform to the widest scope consistent with the principles and novel features disclosed in this article.

1: display panel 2: driver chip 3: FPC 4: isolation layer 11: Silver reflector 12: Backlight 13: Masking tape 14: Lower polarizer 15: TFT glass

FIG. 1 is a schematic structural view of the back of a display module provided by the author; 2 is a schematic diagram of the front structure of a display module provided by the creation; Figure 3 is a disassembly schematic diagram of a display module provided by the creation; 4 is a schematic rear view of the display module provided in FIG. 3 after assembly; and FIG. 5 is a schematic diagram of the back of another display module provided by the author.

1: display panel

3: FPC

4: isolation layer

13: Masking tape

Claims (10)

A display module, including: A display panel provided with a backplane, a driver chip pressed on the display panel, and an FPC electrically connected to the driver chip, attached to an isolation layer provided on the back binding area of the FPC, the isolation The layer is an insulating layer or a conductive layer connected to a GND of the FPC. The display module according to claim 1, wherein a light-shielding tape is provided on the outer periphery of the display panel, and the light-shielding tape extends toward the FPC to form the insulating layer. The display module according to claim 1, wherein the insulating layer is an insulating tape or a yellow adhesive tape. The display module according to claim 1, wherein the conductive layer is a conductive tape or a copper foil. The display module according to claim 1, wherein the driving chip is an LCD driving chip or an IDC driving chip or an AMOLED driving chip. The display module according to claim 1, wherein the display panel is an LCD display panel. The display module according to claim 1, wherein the display panel is an AMOLED display panel. The display module according to claim 1, wherein the display module integrates a touch module. A terminal device includes the display module according to any one of the request items 1-8. The terminal device according to claim 9, wherein the terminal device is a mobile phone.

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