Touch screen and liquid crystal display screen capable of avoiding mistaken touch

Abstract

The utility model discloses a touch screen and a liquid crystal display screen capable of avoiding mistaken touch, the touch screen capable of avoiding mistaken touch comprises a cover plate, a touch control film, a shielding film and an FPC, the touch control film is pasted on the lower surface of the cover plate through a first OCA optical cement; the shielding film is adhered to the lower surface of the touch film through a second OCA optical adhesive, an ITO grounding layer is arranged on the shielding film, a grounding pin is arranged on the ITO grounding layer, and an avoiding notch corresponding to the grounding pin in shape and position is formed in the touch film; and the FPC is bound on the upper surface of the touch film and is bound with the grounding pin of the shielding film through the avoiding gap. When the touch film and the shielding film are overlapped together, the grounding pin of the ITO grounding layer can just extend out of the avoiding notch of the touch film, so that the grounding pin is exposed, the FPC can be bound with the touch film and the shielding film at the same time, the shielding film can shield a signal below, the touch film is prevented from being interfered by the signal, and the reliability of the touch film is improved. And the cost of the additionally arranged shielding film is very low.

Description

TECHNICAL FIELD

[0001] The utility model relates to a liquid crystal display technical field more specifically, relate to a kind of touch screen and liquid crystal display screen to avoid false touch. BACKGROUND

[0002] TFT screen has good display effect, and has price advantage, it is widely used in smart watch project. The function that smart watch possesses is more and more comprehensive, integrates touch, display and NFC payment and a series of functions, in the limited space of smart watch, integrates various functional requirements, and customer's demand for function piece also has increasing tendency. Interference signal in the narrow space of smart watch is more and more and big, and TFT display module pursues cost advantage, and cheap self-capacitance touch IC and single-layer touch film are used on touch, and so many functional signals are concentrated in smart watch, to cause that touch screen is prone to false touch problem, that is, without external touch, it can be misreported as having external touch, to affect normal use of customer. In order to avoid the occurrence of this problem, manufacturer often adopts stronger anti-interference touch IC, and also uses better material, which undoubtedly increases the cost of TFT display module, makes TFT display module lose the advantage of low cost, to affect the market share of TFT display module. SUMMARY

[0003] The technical problem to be solved by the utility model is how to avoid false touch without greatly increasing product cost.

[0004] The technical problem to be solved by the utility model is solved by the following technical scheme.

[0005] In order to solve the above technical problem, the utility model provides a kind of touch screen to avoid false touch, it includes cover plate, touch film, shielding film and FPC, the touch film is pasted in the lower surface of the cover plate by first OCA optical glue;The shielding film is pasted in the lower surface of the touch film by second OCA optical glue, ITO ground layer is provided on the shielding film, the ITO ground layer is provided with ground pin, the touch film is opened with the shape and position of the ground pin corresponding avoidance gap;The FPC is bound in the upper surface of the touch film and is bound with the ground pin of the shielding film through the avoidance gap.

[0006] As a preferred embodiment of the utility model provided, the thickness of the first OCA optical glue is 0.1mm, the thickness of the touch film is 0.05mm, the thickness of the second OCA optical glue is 0.05mm, and the thickness of the shielding film is 0.05mm.

[0007] As a preferred embodiment of the touch screen avoiding mis-touch provided by the utility model, the thickness of the cover plate is 1.3mm.

[0008] As a preferred embodiment of the touch screen avoiding mis-touch provided by the utility model, the upper surface of one end of the FPC is provided with components.

[0009] As a preferred embodiment of the touch screen avoiding mis-touch provided by the utility model, the lower surface of the FPC at the components is provided with a reinforcing plate.

[0010] As a preferred embodiment of the touch screen avoiding mis-touch provided by the utility model, the cross-sectional area of the reinforcing plate is greater than the cross-sectional area of the components.

[0011] As a preferred embodiment of the touch screen avoiding mis-touch provided by the utility model, the material of the reinforcing plate is stainless steel.

[0012] The utility model provides a kind of LCD, it includes the touch screen avoiding mis-touch of any one of the above.

[0013] As a preferred embodiment of the touch screen avoiding mis-touch provided by the utility model, the lower of the cover plate is provided with TFT module.

[0014] As a preferred embodiment of the touch screen avoiding mis-touch provided by the utility model, the lower of the TFT module is provided with backlight module.

[0015] The utility model has the following beneficial effects:

[0016] When the touch film and shielding film are overlapped together, the ground pin of ITO ground layer can just extend to the avoiding gap of touch film, so that the ground pin leaks out, so that FPC can be bound with touch film and shielding film at the same time, shielding film can shield the signal below, so as to avoid the signal interference to touch film, and the cost of added shielding film is very low, so that it can avoid mis-touch without greatly increasing product cost. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the scheme in the present application, the drawings needed in the embodiment description will be briefly introduced below, and obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0018] Figure 1 The structure diagram of the touch screen avoiding mis-touch provided by the utility model is shown.

[0019] Figure 2 For Figure 1 Enlarged view at A.

[0020] Figure 3 For Figure 1 Structure diagram of the touch film.

[0021] Figure 4 For Figure 3 Enlarged view at B in.

[0022] Figure 5 For Figure 1 Structure diagram of the shielding film.

[0023] Figure 6 For Figure 5 Enlarged view at C in.

[0024] Figure 7 Structure diagram of the liquid crystal display provided by the present application.

[0025] Brief Description of the Drawings

[0026] Cover plate 1; touch film 2; shielding film 3; FPC 4; first OCA optical glue 5; second OCA optical glue 6; grounding pin 31; avoiding notch 21; component 7; reinforcing plate 8; TFT module 9; backlight module 10. DETAILED DESCRIPTION

[0027] In order to make the personnel in the technical field better understand the present application scheme, the technical scheme in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without creative labor should belong to the scope of protection of the present application.

[0028] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0029] In addition, the terms "first", "second", "third" are only for descriptive purpose, and cannot be understood as indicating or implying relative importance or implying the number of the indicated technical features. Therefore, the features defined with "first", "second", "third" can explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise explicitly specified.

[0030] The utility model provides a kind of touch screen that avoids false touch, it includes cover plate, touch film, shielding film and FPC, the touch film is pasted in the lower surface of the cover plate by first OCA optical glue;The shielding film is pasted in the lower surface of the touch film by second OCA optical glue, ITO ground layer is provided on the shielding film, the ITO ground layer is provided with ground pin, the touch film is opened with the shape and position corresponding to the ground pin Avoiding gap;The FPC is bound in the upper surface of the touch film and is bound with the ground pin of the shielding film through the avoiding gap.

[0031] When touch film and shielding film are overlapped together, the ground pin of ITO ground layer can just extend to the avoiding gap of touch film, let ground pin leak out, so that FPC can be bound with touch film and shielding film simultaneously, shielding film can shield the signal below, to avoid that touch film is interfered, and the cost of the added shielding film is very low, to avoid false touch without greatly increasing product cost.

[0032] In order to enable the personnel in the technical field to better understand the present application scheme, the technical scheme in the embodiment of the present application will be described clearly and completely in conjunction with the drawings. The utility model will be described in detail in conjunction with the drawings and examples, the examples of the described embodiment are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements with the same or similar function throughout. The examples described below by referring to the drawings are exemplary, and are intended to explain the utility model, and cannot be understood as limiting the utility model.

[0033] Example 1, please refer to Figures 1 to 6The utility model provides a kind of touch screen to avoid false touch, it includes cover plate 1, touch film 2, shielding film 3 and FPC 4, touch film 2 is pasted on the lower surface of cover plate 1 by first OCA optical glue 5;Shielding film 3 is pasted on the lower surface of touch film 2 by second OCA optical glue 6, shielding film 3 is provided with ITO ground layer, ITO ground layer is provided with ground pin 31, touch film 2 is provided with the avoiding gap 21 corresponding with the shape and position of ground pin 31;FPC 4 is bound on the upper surface of touch film 2 and is bound with the ground pin 31 of shielding film 3 through avoiding gap 21.When touch film 2 and shielding film 3 are overlapped together, the ground pin 31 of ITO ground layer can just extend to the avoiding gap 21 of touch film 2, let ground pin 31 leak out, so FPC 4 can be bound with touch film 2 and shielding film 3 simultaneously, shielding film 3 can shield the signal below, to avoid that touch film 2 is interfered, the cost of increased shielding film 3 is very low, to make it avoid false touch in the case where product cost is not greatly increased.

[0034] The thickness of cover plate 1 in traditional structure is 1.3mm, the thickness of first OCA optical glue 5 is 0.13mm, the thickness of touch film 2 is 0.12mm, the total thickness of first OCA optical glue 5 and touch film 2 is 0.25mm, and the thickness of first OCA optical glue 5 in the structure is 0.1mm, the thickness of touch film 2 is 0.05mm, the thickness of second OCA optical glue 6 is 0.05mm, the thickness of shielding film 3 is 0.05mm, and the total thickness of first OCA optical glue 5, touch film 2, second OCA optical glue 6 and shielding film 3 is also 0.25mm, so that the total thickness is unchanged.

[0035] Further, the upper surface of one end of FPC 4 is provided with component 7, the lower surface of FPC 4 at component 7 is provided with reinforcing plate 8, and the cross-sectional area of reinforcing plate 8 is greater than the cross-sectional area of component 7 to increase the strength at component 7.

[0036] Embodiment 2, please refer to Figure 7 The utility model provides a kind of liquid crystal display, it includes the touch screen to avoid false touch as described in any one of the above, the lower of cover plate 1 is provided with TFT module 9, and the lower of TFT module 9 is provided with backlight module 10.

[0037] In the utility model, unless another definite provision and limitation, the term " install " " link " " connect " " fixed " and so on term should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electric connection or each other can communicate;Can be direct connection, also can indirectly connect through intermediate medium, can be two element internal communication or two element mutual action relation, unless another definite limitation.For ordinary skilled person in the art, can understand the above-mentioned term in the utility model concrete meaning according to specific circumstances.

[0038] Obviously, the above-described embodiments are only part of the embodiments of the present application, rather than all the embodiments, the preferred embodiments of the present application are given in the drawings, but do not limit the patent scope of the present application. The present application can be realized in many different forms, and contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive. Although the present application is described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing specific embodiments, or make equivalent replacement for part of the technical features. Any equivalent structure made by using the contents of the specification and drawings, directly or indirectly used in other related technical fields, is also within the scope of the patent protection of the present application.

Claims

1. A touch screen that avoids false touches, characterized by, It comprises: a cover plate; a touch film adhered to the lower surface of the cover plate by a first OCA optical adhesive; a shielding film adhered to the lower surface of the touch film by a second OCA optical adhesive, the shielding film being provided with an ITO grounding layer, the ITO grounding layer being provided with grounding pins, the touch film being provided with avoiding notches corresponding to the shape and position of the grounding pins; an FPC bound to the upper surface of the touch film and bound to the grounding pins of the shielding film through the avoiding notches.

2. The mis-touch-avoiding touch screen of claim 1, wherein, The thickness of the first OCA optical adhesive is 0.1mm, the thickness of the touch film is 0.05mm, the thickness of the second OCA optical adhesive is 0.05mm, and the thickness of the shielding film is 0.05mm.

3. The mis-touch-avoiding touch screen of claim 1, wherein, The thickness of the cover plate is 1.3mm.

4. The mis-touch-avoiding touch screen of claim 1, wherein, The upper surface of one end of the FPC is provided with components.

5. The mis-touch-avoiding touch screen of claim 4, wherein, The lower surface of the FPC at the components is provided with a reinforcing plate.

6. The mis-touch-avoiding touch screen of claim 5, wherein, The cross-sectional area of the reinforcing plate is greater than that of the components.

7. The mis-touch-avoiding touch screen of claim 5, wherein, The material of the reinforcing plate is stainless steel.

8. A liquid crystal display panel, characterized by comprising: It comprises the touch screen avoiding mis-touch as claimed in any one of claims 1-7.

9. The liquid crystal display of claim 8, wherein, The lower surface of the cover plate is provided with a TFT module.

10. The liquid crystal display of claim 9, wherein, The lower surface of the TFT module is provided with a backlight module.

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