CN208507329U - Composite membrane and industrial equipment - Google Patents

Abstract

The utility model provides a kind of composite membrane suitable for display screen, comprising: the first film layer, the first film layer are the insulating film layers of the window area with exposure display screen；Second film layer, the second film layer are conductive transparent film layers, and the second film layer is attached at the side of the first film layer, and covers the entire window area of the first film layer；And third membrane layer, it is made of an electrically conducting material, third membrane layer is in contact with the second film layer and has a discharge part.In addition, the utility model additionally provides a kind of industrial equipment using above-mentioned composite membrane.

Description

Composite membrane and industrial equipment

Technical field

The utility model relates to industrial drives field more particularly to a kind of composite membrane suitable for display screen and use this The industrial equipment of kind composite membrane.

Background technique

The industrial equipments such as driver on the market are generally provided with LED/LCD display screen 1 at present, as shown in Figure 1.? The outside of the LED/LCD display screen 1 needs to paste the insulating film with key or form, although this insulating film has well Insulation performance, but there is no function of shielding, faint charge inducing can not be isolated out.

Because of very sensitive device this for display screen 1, if this can not be allowed exhausted due to the limitation of product size Velum and display screen 1 generate a certain distance.Thus, if insulating film and display screen 1 outside from it is close when (almost want Contact) static discharge (ESD) test is carried out, although insulating film can not be punctured, induced electricity can be generated in the inside of insulating film Lotus, this charge can interfere with display screen 1, so that display screen 1 generates the exceptions such as flashing, flower screen.

Utility model content

In view of the above problems in the prior art, the utility model proposes a kind of completely new composite membranes and its industrial equipment. In particular, the utility model can overcome the problem of display screen is easy by electrostatic interference by the design of the composite membrane, improve The stability and reliability of product.

One aspect according to the present utility model provides a kind of composite membrane suitable for display screen, comprising:

First film layer, first film layer are the insulating film layers of the window area with the exposure display screen；

Second film layer, second film layer are conductive transparent film layers, and second film layer is attached at first film layer Side, and cover the entire window area of first film layer；And

Third membrane layer is made of an electrically conducting material, and the third membrane layer is in contact with second film layer and has an electric discharge Portion.The second above-mentioned film layer and third membrane layer can guide the charge inducing generated on the inside of the first film layer, thus comprehensive Protect display screen.

According to one embodiment, in above-mentioned composite membrane, the window area of first film layer is made of clear material, Or the window area of first film layer is hollow out window.

According to one embodiment, in above-mentioned composite membrane, first film layer also has relative to first film layer Entirety it is outstanding at least one press key block and/or at least one transparent or hollow out indicator light window.

According to one embodiment, in above-mentioned composite membrane, between second film layer and first film layer and institute It states by conductive glue bond between third membrane layer and second film layer, in favor of taking away electrostatic charge.

According to one embodiment, in above-mentioned composite membrane, a part of the third membrane layer is attached at second film The edge of layer, not cover the window area, and the discharge part is the electroconductive elastic sheet individually extended, so that this is compound The charge-conduction generated on film is to grounded parts.

Another aspect according to the present utility model provides a kind of industrial equipment, comprising: display screen and as discussed above Composite membrane, wherein the composite membrane is close to display screen setting, and the window area is made to expose the display screen.

According to one embodiment, in above-mentioned industrial equipment, a part of the third membrane layer is attached at described second The edge of film layer, not cover the window area, and the discharge part is the electroconductive elastic sheet individually extended.

Further comprise in above-mentioned industrial equipment according to one embodiment: being set to connecing near the display screen Ground component, wherein the end of the electroconductive elastic sheet of the third membrane layer is in contact with the grounded parts, so as to will be on the composite membrane The charge-conduction of generation is to grounded parts.

According to one embodiment, in above-mentioned industrial equipment, the grounded parts is for fixing the display screen Earthing screw on the industrial equipment.

According to one embodiment, in above-mentioned industrial equipment, the display screen is LED or LCD display.

It should be appreciated that general description and the following detailed description more than the utility model is all exemplary and illustrative , and it is intended that the utility model as claimed in claim provides further explanation.

Detailed description of the invention

It is to provide and being further understood to the utility model including attached drawing, they are included and constitute one of the application Point, attached drawing shows the embodiments of the present invention, and plays the role of explaining the utility model principle together with this specification. In attached drawing:

Fig. 1 is an exemplary schematic diagram of industrial equipment.

Fig. 2 is the positive schematic diagram of one embodiment of composite membrane according to the present utility model.

Fig. 3 is the schematic diagram at the back side of one embodiment of composite membrane according to the present utility model.

Fig. 4 is the schematic diagram of one embodiment of the installation condition of composite membrane and industrial equipment according to the present utility model.

Description of symbols:

1 display screen

20 composite membranes

21 first film layers

22 second film layers

23 third membrane layer

24 window areas

25 discharge parts

26 press key block

27 indicator light windows

30 display screens

40 grounded parts

Specific embodiment

The embodiments of the present invention are described with detailed reference to attached drawing now.Now with detailed reference to the excellent of the utility model Embodiment is selected, its example is shown in the drawings.In the case of any possible, will be come in all the appended drawings using identical label Indicate the same or similar part.In addition, although term used in the utility model is selected from public term It selects, but some terms mentioned in the utility model specification may be that applicant is selected by his or her judgement , detailed meanings illustrate in the relevant portion of description herein.Furthermore, it is desirable that not only by used practical art Language, and the meaning contained by each term is also to understand the utility model.

Discuss the basic principle and preferred embodiment of the utility model in more detail with reference to Fig. 2-4.Fig. 2 and Fig. 3 are shown One embodiment of composite membrane according to the present utility model.The composite membrane 20 specifically includes that the first film layer 21, the second film layer 22, third membrane layer 23.

First film layer 21 is the insulating film layer of the window area 24 with exposure display screen, is made to play shielding and insulation With preventing high electrical breakdown, damage internal component.The window area 24 of first film layer 21 can be by transparent material system At or the window area 24 of first film layer 21 be also possible to the form of hollow out window.In addition, as shown in Fig. 2, first film layer 21 also have relative to the first film layer 21 entirety it is outstanding at least one press key block 26 and/or transparent or hollow out at least one A indicator light window 27.It is made of by key block 26 elastic material, and carries corresponding identification pattern thereon.

Second film layer 22 is conductive transparent film layer, such as transparent electrostatic discharge film.Second film layer 22 can be by generation Charge inducing adsorbs on it.As shown in figure 3, second film layer 22 is attached at the side of the first film layer 21, and cover the first film The entire window area 24 of layer 21.As an example, which can be bonded in the first film layer 21 by conducting resinl On, in favor of taking away electrostatic charge.

Third membrane layer 23 is made of an electrically conducting material.The third membrane layer 23 is in contact with the second film layer 22 and has a discharge part 25, to guide the charge in the second film layer 22 at the first time, prevent such charge from generating interference to display screen.Similar, It can also be by conductive glue bond, in favor of taking away electrostatic charge between the third membrane layer 23 and the second film layer 22.It is shown in Fig. 3 Embodiment in, a part of third membrane layer 23 is only attached at the edge of the second film layer 22, not cover window area 24.This Outside, above-mentioned discharge part 25 is the electroconductive elastic sheet individually extended from the main part of discharge part 25.That is, the one of the discharge part 25 It holds and connects with the main part of discharge part 25 and be located in the same identical plane of first and second film layers, and the other end extends outwardly To be located at the different plane of the first and second film layers, Fig. 4 is please referred to.

The second above-mentioned film layer 22 and third membrane layer 23 can guide the charge inducing generated on the inside of the first film layer 21, from And comprehensive protection display screen.

Fig. 4 is gone to, the figure shows a realities of the installation condition of composite membrane according to the present utility model and industrial equipment Apply example.There is display screen 30, such as display screen is LED or LCD display on the industrial equipment.Composite membrane as discussed above 20 are close to the display screen 30 setting, and window area 24 is made to expose the display screen 30, i.e., do not interfere the display function of the display screen 30 Energy.

Preferably, grounded parts 40 can be arranged on industrial equipment near display screen 30, such as the grounded parts 40 can To be the earthing screw for being fixed on display screen 30 on industrial equipment, as shown in the embodiment depicted in fig. 4.In addition, above-mentioned The end of discharge part (electroconductive elastic sheet) 25 in three film layers 23 is in contact with grounded parts (earthing screw) 40, so that this is compound The charge-conduction generated on film 20 is to grounded parts 40.

To sum up, the composite membrane of the utility model can solve the easily disturbed problem of display screen.In addition, the utility model Design allows not stay gap between display screen and composite membrane, is conducive to reduce product outline size.In addition, the utility model is answered The function of ideally combining shielding and antistatic of closing film, indirectly improves the service life of display screen.

Those skilled in the art can be obvious, can the above exemplary embodiments of the utility model be carry out various modifications and be become Spirit and scope of the type without departing from the utility model.Accordingly, it is intended to which the utility model covering is made to fall in the appended claims And its modifications and variations to the utility model within the scope of equivalent arrangements.

Claims (10)

1. a kind of composite membrane (20) suitable for display screen characterized by comprising

First film layer (21), first film layer are the insulating film layers of the window area (24) with the exposure display screen；

Second film layer (22), second film layer are conductive transparent film layers, and second film layer is attached at first film layer Side, and cover the entire window area of first film layer；And

Third membrane layer (23), is made of an electrically conducting material, and the third membrane layer is in contact with second film layer and has an electric discharge Portion (25).

2. composite membrane (20) as described in claim 1, which is characterized in that the window area (24) of first film layer (21) by Transparent material is made or the window area of first film layer is hollow out window.

3. composite membrane (20) as described in claim 1, which is characterized in that first film layer (21) also has relative to described The entirety of first film layer it is outstanding at least one press key block (26) and/or at least one transparent or hollow out indicator light window (27).

4. composite membrane (20) as described in claim 1, which is characterized in that second film layer (22) and first film layer (21) pass through conductive glue bond between and between the third membrane layer (23) and second film layer.

5. composite membrane (20) as described in claim 1, which is characterized in that a part of the third membrane layer (23) is attached at institute The edge of the second film layer (22) is stated, not cover the window area (24), and the discharge part (25) individually extends Electroconductive elastic sheet.

6. a kind of industrial equipment characterized by comprising display screen (30) and as described in any one of claim 1-4 Composite membrane (20) wherein the composite membrane is close to the display screen setting, and makes the window area (24) to expose the display Screen.

7. industrial equipment as claimed in claim 6, which is characterized in that a part of the third membrane layer (23) is attached at described The edge of second film layer (22), not cover the window area (24), and the discharge part (25) is leading of individually extending Electric elastic slice.

8. industrial equipment as claimed in claim 7, which is characterized in that further comprise: it is attached to be set to the display screen (30) Close grounded parts (40), wherein the end of the electroconductive elastic sheet of the third membrane layer (23) is in contact with the grounded parts.

9. industrial equipment as claimed in claim 8, which is characterized in that the grounded parts (40) is for by the display screen (30) earthing screw being fixed on the industrial equipment.

10. industrial equipment as claimed in claim 6, which is characterized in that the display screen (30) is LED or LCD display.