Resistive touch screen

Abstract

The utility model relates to a resistive touch screen which sequentially comprises an anti-reflection layer, a PET layer, an upper silver wire circuit layer, a rubber frame layer, a lower silver wire circuit layer and a glass layer from top to bottom. And the rubber frame layer is arranged near the edges of the stacked upper silver wire circuit layer and the lower silver wire circuit layer so as to maintain a gap between the upper silver wire circuit layer and the lower silver wire circuit layer. The resistive touch screen provided by the utility model comprises the structure of the anti-reflection layer, and the anti-reflection layer is constructed by adopting a material which can be realized in the prior art and is arranged on the PET layer, namely arranged outside the component structure of the resistive touch screen, so that the reflection of light rays can be reduced, the light transmittance of the PET layer in the touch screen is improved, and the anti-reflection performance of the touch screen is improved. The light transmittance of the PET layer below the anti-reflection layer can be improved by more than 2%, the light transmittance of the whole resistive touch screen is effectively improved, and the definition of information display is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to touch screen technical field especially relates to a resistance type touch screen. BACKGROUND

[0002] Resistance type touch screen is now used in industrial equipment, and the touch screen is installed above LCD, and the light transmittance of the touch screen directly influences the definition of the information displayed by the human eye reading LCD. Generally speaking, the light transmittance of the touch screen reaches 78% or more, and the requirement of clearly reading the information displayed by LCD can be basically met. However, in many occasions, customers still require higher light transmittance, and there are two reasons: one is that the customer uses a special required polaroid on the LCD for some needs, and the touch screen that meets the light transmittance standard cannot meet the definition requirement of the information displayed by the display screen due to the existence of the polaroid; two is that in the special light environment, the information displayed by the resistance type touch screen that meets the basic requirement is no longer so clear under the non-optimal viewing angle.

[0003] Therefore, it is necessary to think of a better scheme to further improve the light transmittance of the resistance type touch screen. CONTENT OF THE UTILITY MODEL

[0004] Therefore, it is necessary to think of a better scheme to further improve the light transmittance of the resistance type touch screen.

[0005] The resistance type touch screen provided by the utility model comprises from top to bottom in sequence an antireflection layer, a PET layer, an upper silver line circuit layer, a rubber frame layer, a lower silver line circuit layer and a glass layer; the rubber frame layer is arranged near the edge of the stacked upper silver line circuit layer and lower silver line circuit layer to maintain the gap between the upper silver line circuit layer and the lower silver line circuit layer.

[0006] In one of the embodiments, the light transmittance of the antireflection layer is greater than or equal to 98%.

[0007] In one of the embodiments, the antireflection layer is further covered with a reinforcing layer.

[0008] In one of the embodiments, the thickness of the reinforcing layer is 300 angstrom meters.

[0009] In one of the embodiments, the glass layer is provided with the antireflection layer on the upper and lower surfaces.

[0010] In one of the embodiments, the thickness of the antireflection layer is 300 angstrom meters.

[0011] In one of the embodiments, an ITO circuit layer with a thickness of 300 angstrom meters is further arranged between the PET layer and the upper silver line circuit layer; and an ITO circuit layer with a thickness of 300 angstrom meters is further covered on the lower silver line circuit layer.

[0012] In one of the embodiments, a flexible circuit board is further included, which is electrically connected with the upper silver line circuit layer and the lower silver line circuit layer respectively.

[0013] In one of the embodiments, the lower silver line circuit layer is uniformly distributed with an isolation array composed of isolation points with a diameter of 0.05mm.

[0014] The technical scheme provided in the embodiment of the utility model brings the following beneficial technical effects:

[0015] The resistive touch screen provided by the utility model contains the structure of the anti-reflection layer, the anti-reflection layer is constructed by the material capable of being realized in the prior art, is arranged on the PET layer, that is, is arranged outside the component structure of the resistive touch screen, can reduce the reflection of light, improve the light transmittance of the PET layer in the touch screen, can make the light transmittance of the PET layer below the anti-reflection layer improve by more than 2%, effectively improve the light transmittance of the whole resistive touch screen, and improve the definition of information display.

[0016] The additional aspects and advantages of the present application will be given in the subsequent part, and will be understood in detail from the subsequent description or by understanding the specific implementation of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a layered structure diagram of the resistive touch screen in an embodiment of the utility model.

[0018] EXPLANATION OF REFERENCE NUMERALS:

[0019] 100-anti-reflection layer, 200-PET layer, 300-upper silver line circuit layer, 400-gel frame layer, 500-lower silver line circuit layer, 600-glass layer, 700-strengthening layer. DETAILED DESCRIPTION

[0020] In order to facilitate the understanding of the utility model, the utility model will be described more comprehensively below by referring to the relevant drawings. The drawings show possible embodiments of the utility model. However, the utility model can be realized in many different forms, and is not limited to the embodiments already described by the drawings in this paper. The embodiments described by referring to the drawings are exemplary, and are used to make the understanding of the disclosure of the utility model more thorough and comprehensive, and cannot be explained as the limitation of the utility model. In addition, if the detailed description of the known technology is not necessary for the features of the shown utility model, these technical details can be omitted.

[0021] Those skilled in the relevant art and having the benefit of the present disclosure will understand that unless otherwise defined, all terms (including technical and scientific terms) used herein are to be interpreted as is customary in the art. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

[0022] Those skilled in the art will appreciate that the singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise. It will be further understood that the terms "comprise" "comprises" "comprising," "include," "includes" and "including" when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. It will be understood that the terms "and / or," "and," and "or" as used herein, refer to a total package of one or more associated listed items and all combinations thereof.

[0023] The technical scheme of the present application and how it solves the above technical problems will be described in detail below with specific examples.

[0024] The resistive touch screen provided by the present application comprises, from top to bottom, an anti-reflection layer 100, a PET layer 200, an upper silver line circuit layer 300, a glue frame layer 400, a lower silver line circuit layer 400, and a glass layer 600. The glue frame layer 400 is arranged near the edges of the stacked upper silver line circuit layer 300 and lower silver line circuit layer 400 to maintain the gap between the upper silver line circuit layer 300 and the lower silver line circuit layer 400.

[0025] The resistive touch screen provided by the present application comprises the structure of the anti-reflection layer 100. The anti-reflection layer 100 is constructed by using materials that can be realized in the prior art and is arranged on the PET layer 200, i.e., outside the component structure of the resistive touch screen. This can reduce the reflection of light, improve the light transmittance of the PET layer 200 in the touch screen, and increase the light transmittance of the PET layer 200 below the anti-reflection layer 100 by more than 2%, effectively improving the light transmittance of the entire resistive touch screen and improving the clarity of information display.

[0026] Specifically, in one embodiment of the present application, the light transmittance of the anti-reflection layer 100 is greater than or equal to 98%. The material of the anti-reflection coating is mainly silicon niobium material, which is plated on transparent optical glass or PET (polyethylene terephthalate) by vacuum magnetron sputtering coating technology, can reduce the reflection of light, improve the light transmittance of the glass layer 600 or the PET layer 200, and can make the light transmittance of the PET layer 200 below it increase by more than 2%. More specifically, the thickness of the anti-reflection layer 100 is 300 angstroms, and the thickness of about 300 angstroms can ensure that the light transmittance of the anti-reflection coating itself reaches more than 98%.

[0027] In addition, in another embodiment of the present application, the anti-reflection layer 100 is also covered with a reinforcing layer 700, and the thickness of the reinforcing layer 700 is 300 angstroms, which can make the hardness of the paint film of the outermost layer of the touch screen not less than 3H, so as to ensure that the touch screen is wear-resistant enough.

[0028] Optionally, in another embodiment of the present application, as shown in Figure 1 the anti-reflection layer 100 is arranged on the upper and lower surfaces of the glass layer 600. The anti-reflection layer 100 below the lower ITO line can make the light transmittance of the glass layer 600 below it further increase by more than 2%. And the anti-reflection layer 100 below the glass layer 600 is about 300 angstroms, which connects the customer's LCD through SCA (Supplemental Coolant Additive) optical glue, which is a solid-state UV curing optical glue, and can make the light transmittance of SCA and LCD increase by more than 2%.

[0029] In one embodiment, the ITO line layer with a thickness of 300 angstroms is arranged between the PET layer 200 and the upper silver line line layer 300; and the ITO line layer with a thickness of 300 angstroms is arranged on the lower silver line line layer 400. The ITO line layer with a thickness of 300 angstroms is plated on the lower surface of the PET layer 200, and the ITO is etched to form the upper ITO line of the touch screen, so that the upper silver line line layer 300 can be regarded as comprising the upper ITO line and the upper silver line line, and the upper ITO line is connected to the external control circuit through the upper silver line line and the FPC (flexible circuit board). Similarly, the ITO with a thickness of 300 angstroms is plated on the lower line, and the ITO is etched to form the lower ITO line of the touch screen, so that the lower silver line line layer 400 can be regarded as comprising the lower ITO line and the lower silver line line, and the lower ITO line is connected to the external control circuit through the lower silver line line and the FPC.

[0030] In addition, the adhesive frame layer 400 is specifically double-sided adhesive, and the double-sided adhesive is arranged around the entire substrate of the upper silver line line layer 300, which can be regarded as an adhesive frame, and is adhered to the entire glass substrate of the lower silver line line layer 400, so that the upper silver line line layer 300 and the lower silver line line layer 400 have a certain gap therebetween.

[0031] In one embodiment, the lower silver line circuit layer 400 is uniformly distributed with an isolation array composed of isolation points with a diameter of 0.05 mm. The lower ITO line is uniformly arranged with a plurality of isolation points with a diameter of 0.05 mm, ensuring that the upper and lower ITO lines are insulated when the touch screen is not in operation.

[0032] The resistance touch screen provided by the utility model has the following performance parameters after testing:

[0033]

[0034] Those skilled in the art can understand that, in the description of the present application, it is necessary to explain that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0035] In the description of the present application, the specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0036] The above is only part of the embodiments of the present application, and it should be pointed out that, for those skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, and these improvements and refinements should also be considered as the protection scope of the present application.

Claims

1. A resistive touch screen, characterized by, From top to bottom, the stack includes an anti-reflection layer, a PET layer, an upper silver line circuit layer, a rubber frame layer, a lower silver line circuit layer, and a glass layer; the rubber frame layer is arranged near the edges of the upper silver line circuit layer and the lower silver line circuit layer in the stack to maintain a gap between the upper silver line circuit layer and the lower silver line circuit layer.

2. The resistive touch screen of claim 1, wherein, The anti-reflection layer has a light transmittance greater than or equal to 98%.

3. The resistive touch screen of claim 1, wherein, The anti-reflection layer is further covered with a reinforcing layer.

4. The resistive touch screen of claim 3, wherein, The reinforcing layer has a thickness of 300 angstroms.

5. The resistive touch screen of claim 1, wherein, The glass layer is provided with the anti-reflection layer on both upper and lower surfaces.

6. The resistive touch screen of claim 1, wherein, The anti-reflection layer has a thickness of 300 angstroms.

7. The resistive touch screen of claim 1, wherein, The PET layer and the upper silver line circuit layer are further provided with an ITO circuit layer having a thickness of 300 angstroms; the lower silver line circuit layer is further covered with an ITO circuit layer having a thickness of 300 angstroms.

8. The resistive touch screen of claim 1, wherein, The stack further includes a flexible circuit board, which is electrically connected with the upper silver line circuit layer and the lower silver line circuit layer, respectively.

9. The resistive touch screen of claim 1, wherein, The lower silver line circuit layer is uniformly provided with an isolation array composed of isolation points having a diameter of 0.05 mm.

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