CN210868605U - Display module prevents short circuit structure - Google Patents

Abstract

The utility model discloses a short circuit prevention structure of a display module, wherein the display module comprises a display screen, a light source and a cover plate, and further comprises a circuit board electrically connected with the display screen and the light source, the circuit board is led out to be attached to the back of the display module, the end of the circuit board is provided with a connector, and the connector is used for electrically connecting with a main board of the display module; the display module further comprises a shielding film formed on the back surface of the display module, and the shielding film covers the circuit board and avoids the connector; the shielding film includes insulating layer and shielding layer, the insulating layer forms between display module assembly and shielding layer, wherein the shielding layer corresponds the one side of connector and contracts in the setting more than the insulating layer 0.5mm, has effectively reduced the risk that shielding film and connector contact lead to the short circuit.

Description

Display module prevents short circuit structure

Technical Field

The utility model relates to a show technical field, more specifically relate to a display module assembly prevent short circuit structure.

Background

Along with the development of science and technology, display devices such as cell-phones, panel computers have obtained extensive attention and application, and display devices include display module, light source subassembly and shell etc. usually, display devices can produce static when using usually, and static can cause certain influence to display devices, therefore display devices can increase shielding film in order to shield static. On the other hand, the display module and the light source module are usually connected to a motherboard by an electrical connection circuit board led out from the display module and the light source module, and at the position of a connector led out from the circuit board, because the edge of the shielding film is conductive, a short circuit is caused when the distance between the edge of the shielding film and the connector is too close.

SUMMERY OF THE UTILITY MODEL

In order to solve the prior art not enough, the utility model provides a display module assembly prevents short circuit structure has effectively reduced the risk that shielding film and connector contact lead to the short circuit.

The utility model discloses the technological effect that will reach is realized through following scheme: a display module assembly comprises a display screen, a light source, a cover plate and a circuit board electrically connected with the display screen and the light source, wherein the circuit board is led out to be attached to the back of the display module assembly; the display module further comprises a shielding film formed on the back surface of the display module, and the shielding film covers the circuit board and avoids the connector; the shielding film comprises an insulating layer and a shielding layer, wherein the insulating layer is formed between the display module and the shielding layer, and the shielding layer is arranged above the insulating layer by retracting in one side of the corresponding connector of the shielding layer by more than 0.5 mm.

Preferably, the display module is a liquid crystal display module.

Preferably, the liquid crystal display module includes from the top down range upon range of apron, liquid crystal display and the backlight unit that sets up in proper order, liquid crystal display binds the display circuitry board, backlight unit binds the backlight circuit board, display circuitry board and backlight circuit board buckle to the back of liquid crystal display module and pass through connector and liquid crystal display module's mainboard electric connection.

Preferably, the whole surface of the shielding layer is preferably larger than the whole surface of the insulating layer, and only one side of the shielding layer corresponding to the connector is arranged in the insulating layer in a retracted mode.

Preferably, the side of the shielding film facing the connector is at least 2.0mm or more away from the connector.

Preferably, the shielding film further includes a corrosion-resistant layer and a waterproof layer.

Preferably, the shielding film comprises an insulating layer, a shielding layer, a corrosion-resistant layer and a waterproof layer which are sequentially stacked, and a protective layer can be further arranged on the outer side of the waterproof layer.

The utility model has the advantages of it is following:

through including insulating layer and shielding layer with the shielding film, the insulating layer forms between display module assembly and shielding layer, wherein the shielding layer corresponds one side of connector and contracts in the setting more than the insulating layer 0.5mm for the insulating layer salient in the shielding film of connector one side has effectively reduced the risk that shielding film and connector contact lead to the short circuit.

Drawings

Fig. 1 is a schematic view of an overall structure of a short-circuit prevention structure of a display module according to the present invention;

fig. 2 is a schematic structural view of the shielding layer and the insulating layer in the short-circuit prevention structure of the display module of the present invention.

Detailed Description

The invention is described in detail below with reference to the drawings, wherein examples of the embodiments are shown in the drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present invention and for simplicity in description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

Furthermore, the terms "first", "second", "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and "disposed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the interconnection of two elements or through the interaction of two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

As shown in fig. 1 and fig. 2, an embodiment of the present invention provides a short-circuit prevention structure for a display module 100, wherein the display module 100 includes a display screen, a light source, a cover plate, and the like, the display module 100 further includes a circuit board 200 electrically connected to the display screen and the light source, the circuit board 200 is led out to the back surface of the display module 100, a connector 210 is disposed at the end of the circuit board 200, and the connector 210 is used for electrically connecting to a main board of the display module 100; the display module 100 further includes a shielding film 300 formed on the back surface of the display module 100, and the shielding film 300 covers the circuit board and is disposed to avoid the connector 210.

The utility model discloses in shielding film 300 includes insulating layer 310 and shielding layer 320, insulating layer 310 forms between display module assembly 100 and shielding layer 320, and wherein shielding layer 320 corresponds one side retraction of connector 210 in the distance D of insulating layer 310 be the setting more than 0.5mm for insulating layer 310 salient in shielding film 300 of connector 210 one side has effectively reduced shielding film 300 and has contacted the risk that leads to the short circuit with connector 210.

Specifically, the utility model discloses a display module assembly 100 is liquid crystal display module assembly 100, include from last apron, liquid crystal display and the backlight unit down range upon range of setting in proper order, liquid crystal display has bound the display circuitry board, backlight unit has bound the backlight circuit board, the display circuitry board is buckled to the back of liquid crystal display module assembly 100 and is passed through connector 210 and liquid crystal display module assembly 100's mainboard electric connection with the backlight circuit board. It should be understood that the basic structure of the liquid crystal display module 100 is conventional in the art, and the detailed description and drawings are omitted.

After the circuit board is bent to the back of the display module 100, in order to prevent static electricity from being conducted out from the circuit board and other electronic components, the back of the display module 100 must be covered with a shielding film 300, and the insulating layer 310 in the shielding film 300 is mainly disposed to prevent the shielding film 300 from being pierced by the electronic components. As can be seen from the figure, the whole surface of the shielding layer 320 is preferably larger than the whole surface of the insulating layer 310, and is only arranged in a manner of being retracted into the insulating layer 310 on the side of the shielding layer 320 corresponding to the connector 210, so that the insulating layer 310 protrudes out of the shielding layer 320, and the shielding film 300 is effectively prevented from contacting the connector 210 and being short-circuited.

The utility model discloses a during the preparation of barrier film 300, the shape size of barrier layer 320 and insulating layer 310 is unanimous, then tailors out in the picture the back of laminating again to display module assembly 100 behind the shape of barrier layer 320 and insulating layer 310, because barrier layer 320 itself has viscidity, barrier layer 320 the region of outstanding insulating layer 310 all around can be directly fixed with display module assembly 100 bonding, need not to set up in addition that the viscose pastes fixedly.

As a further improvement of the present invention, the shielding film 300 is at least 2.0mm (shown as d in fig. 1) away from the connector 210 toward the side of the connector 210, so that the risk of short circuit can be effectively reduced.

As a further improvement of the present invention, the shielding film 300 further includes a corrosion-resistant layer and a waterproof layer, which can improve the service life of the shielding film 300. Specifically, the shielding film 300 includes an insulating layer 310, a shielding layer 320, a corrosion-resistant layer, and a waterproof layer, which are sequentially stacked, and a protective layer may be further disposed on an outer side of the waterproof layer to form an integral protection of the shielding film 300, so as to prevent the shielding film from being scratched or damaged.

The shielding layer 320 is a conductive and magnetic conductive layer, and can greatly improve the conductive effect of the shielding film 300 by designing a double-layer aluminum foil and a magnetic conductive material layer, and meanwhile, the magnetic conductive material layer has both conductive capability and a good magnetic conductive effect, so that the effect of the shielding film 300 can be further improved. The magnetic conductive material layer uses one or more of electromagnetic pure iron and electrolytic iron, and has good processing performance.

The utility model discloses a display module assembly 100 can be applicable to electronic display equipment such as cell-phone, panel computer.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the embodiments of the present invention and not for limiting the same, and although the embodiments of the present invention are described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the embodiments of the present invention, and these modifications or equivalent substitutions cannot make the modified technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (7)

1. The display module comprises a display screen, a light source and a cover plate, and is characterized by further comprising a circuit board electrically connected with the display screen and the light source, wherein the circuit board is led out to be attached to the back of the display module; the display module further comprises a shielding film formed on the back surface of the display module, and the shielding film covers the circuit board and avoids the connector; the shielding film comprises an insulating layer and a shielding layer, wherein the insulating layer is formed between the display module and the shielding layer, and the shielding layer is arranged above the insulating layer by retracting in one side of the corresponding connector of the shielding layer by more than 0.5 mm.

2. The structure of claim 1, wherein the display module is a liquid crystal display module.

3. The short-circuit prevention structure of a display module as claimed in claim 2, wherein the liquid crystal display module comprises a cover plate, a liquid crystal display and a backlight module which are sequentially stacked from top to bottom, the liquid crystal display is bound with a display circuit board, the backlight module is bound with a backlight circuit board, and the display circuit board and the backlight circuit board are bent to the back of the liquid crystal display module and are electrically connected with the main board of the liquid crystal display module through a connector.

4. The structure of claim 1, wherein the shielding layer is larger than the insulating layer, and only one side of the shielding layer corresponding to the connector is recessed into the insulating layer.

5. The short-circuit preventing structure of a display module as claimed in claim 1, wherein a side of the shielding film facing the connector is spaced at least 2.0mm or more from the connector.

6. The short-circuit prevention structure of a display module according to claim 1, wherein the shielding film further comprises a corrosion-resistant layer and a water-proof layer.

7. The short-circuit prevention structure of a display module as claimed in claim 6, wherein the shielding film comprises an insulating layer, a shielding layer, a corrosion-resistant layer and a waterproof layer, which are sequentially stacked, and a protective layer is further disposed on an outer side of the waterproof layer.

Images