CN210052138U - Touch panel - Google Patents

Abstract

The utility model discloses a touch panel, which comprises a transparent substrate, a BM layer, an IM layer and an anti-reflection film; the transparent substrate is provided with a first surface and a second surface which are oppositely arranged, the BM layer is arranged on the first surface of the glass substrate, and the IM layer covers the BM layer and the transparent substrate without the BM layer; the antireflection film is arranged on the second surface of the transparent substrate; wherein the IM layer comprises a plurality of pattern blocks arranged in an array on the BM layer. The utility model discloses in, the IM layer includes be a plurality of pattern piece that the array was arranged on the BM layer, the BM layer coats the region that is stamped pattern piece and does not cover the pattern piece and forms certain colour difference, through setting up the antireflection coating, cooperatees with it, makes touch panel's outward appearance demonstrate the texture effect for touch panel's outward appearance more has appeal and individuality, can bring fine vision sense organ, has guaranteed the good nature of outward appearance effect, promotes user experience.

Description

Touch panel

Technical Field

The utility model relates to a touch-control technical field especially relates to a touch panel.

Background

Touch screens, also known as touch panels, touch screens, and the like, are inductive liquid crystal display or thin screen display devices that can receive input signals from contacts (including fingers or stylus heads), and a user can operate a host by touching a pattern or a character on the display screen. The touch screen has the advantages of firmness, durability, high response speed, space saving, easy communication and the like.

The existing touch panel has the advantages of single color, monotonous display effect, lack of layering sense and poor user experience.

SUMMERY OF THE UTILITY MODEL

In order to solve the defects of the prior art, the utility model provides a touch panel.

The utility model discloses the technical problem that will solve realizes through following technical scheme:

a touch panel comprises a transparent substrate, a BM layer, an IM layer and an antireflection film; the transparent substrate is provided with a first surface and a second surface which are oppositely arranged, the BM layer is arranged on the first surface of the glass substrate, and the IM layer covers the BM layer and the transparent substrate without the BM layer; the antireflection film is arranged on the second surface of the transparent substrate; wherein the IM layer comprises a plurality of pattern blocks arranged in an array on the BM layer.

Further, the transparent substrate is a glass substrate.

Further, the pattern block is formed by a yellow light process.

Further, the pattern block is circular or polygonal.

Further, the BM layer is formed by a printing or photolithography process.

Further, the transparent substrate comprises a window area and a non-window area, and the BM layer is arranged in the non-window area of the transparent substrate; the IM layer covers the entire window area and the non-window area.

Further, the IM layer comprises a silicon nitride film layer and a silicon oxide film layer which are arranged in a stacked mode.

Further, the antireflection film is formed by alternately laminating high-refractive-index material layers and low-refractive-index material layers.

Further, still include the first ITO layer, first OC layer, second ITO layer, metal film layer and the second OC layer that stack gradually the setting, wherein, first ITO layer is located on the IM layer.

The utility model discloses following beneficial effect has:

the utility model discloses in, the IM layer includes be a plurality of pattern piece that the array was arranged on the BM layer, the BM layer coats the region that is stamped pattern piece and does not cover the pattern piece and forms certain colour difference, through setting up the antireflection coating, cooperatees with it, makes touch panel's outward appearance demonstrate the texture effect for touch panel's outward appearance more has appeal and individuality, can bring fine vision sense organ, has guaranteed the good nature of outward appearance effect, promotes user experience.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In the figure: 1. transparent substrate, 2, BM layer, 3, IM layer, 4, antireflection coating.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the utility model is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element to be referred must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

A touch panel comprises a transparent substrate, a BM layer, an IM layer and an antireflection film; the transparent substrate is provided with a first surface and a second surface which are oppositely arranged, the BM layer is arranged on the first surface of the glass substrate, and the IM layer covers the BM layer and the transparent substrate without the BM layer; the antireflection film is arranged on the second surface of the transparent substrate; wherein the IM layer comprises a plurality of pattern blocks arranged in an array on the BM layer.

More specifically, the transparent substrate comprises a window area and a non-window area, and the BM layer is arranged in the non-window area of the transparent substrate; the IM layer covers the entire window area and the non-window area.

The BM layer is a negative black photoresist layer having a high OD value. The BM layer is arranged in a non-window area of the transparent substrate and has the characteristics of high covering property, smoothness, insulativity and the like. It mainly plays two roles: the touch panel has the advantages that firstly, the light shielding performance is realized, and electrode leads with strong light reflection performance such as metal and the like are prevented from being seen from the front surface of the touch panel; and secondly, the appearance shape finalizing property of the touch panel product is realized, namely the appearance shape of the touch panel is determined by the shape of the BM layer.

The BM layer is formed by a printing or photoetching process.

The IM layer is of a single-layer or multi-layer structure and is formed by at least one of silicon oxynitride materials, silicon oxide materials, silicon nitride materials and niobium oxide materials. Preferably, the IM layer includes a silicon nitride film layer and a silicon oxide film layer which are stacked. The IM layer is arranged, so that the etching shadow of the conductive film layer under visible light in the window area is invisible, the light transmittance is improved, and the visual effect of naked eyes is better.

The transparent substrate is a glass substrate. The glass substrate is soda-lime-silica glass or high borosilicate glass or high alumina-silica glass.

The pattern block is formed by adopting a yellow light process. The principle of the yellow light process is known to the skilled person through technical manuals or through routine experimentation and will not be described in detail herein.

The pattern block may be a circle or a polygon, and examples of the polygon include a square and a diamond, but are not limited thereto.

The antireflection film is formed by alternately laminating high-refractive-index material layers and low-refractive-index material layers. The utility model discloses do not specially limit to the specific material on high refracting index material layer and low high refracting index material layer. Preferably, the refractive index of the high refractive index material layer is 1.8 or more, but not limited to, ZrO ₂、TiO ₂、Ti ₂O ₅、ZnO、TiO、Fe ₂O ₃、Nb ₂O ₅Or Si ₃N ₄The refractive index of the low-high refractive index material layer can be selected below 1.7, and SiO can be used but is not limited to the use ₂、Al ₂O ₃MgF or CaF ₂. Preferably, the antireflection film is formed by alternately laminating silicon nitride film layers and silicon oxide film layers.

The touch panel further comprises a first ITO layer, a first OC layer, a second ITO layer, a metal film layer and a second OC layer which are sequentially stacked, wherein the first ITO layer is arranged on the IM layer.

The first and second OC layers may be made of: propylene glycol monomethyl ether acetate, photoinitiator, acrylic resin, acrylic monoester or diethylene glycol methyl ether, but is not limited to the materials listed above, and may be other materials not listed in this embodiment but known to those skilled in the art.

The first ITO layer, the first OC layer, the second ITO layer and the second OC layer can be generated by adopting a magnetron sputtering coating method, an evaporation coating method or a chemical vapor deposition method.

And the metal film layer is formed on the second ITO layer by a physical sputtering deposition method, an evaporation coating method or an electroplating method, and the metal material forming the metal film layer is aluminum, silver, copper or an alloy film thereof.

The utility model discloses in, the antireflection coating can play the effect of anti-reflection, and the IM layer plays the effect of shadow that disappears, realizes the effect of anti-reflection and shadow that disappears through the rete structure, has reduced touch panel thickness, has improved touch panel's luminousness and reflectivity. Meanwhile, certain color difference is formed in the areas, covered with the pattern blocks and not covered with the pattern blocks, of the BM layer, and the antireflection film is arranged and matched with the BM layer, so that the appearance of the touch panel presents a texture effect, the appearance of the touch panel is more attractive and personalized, good visual sense can be brought, the goodness of the appearance effect is ensured, and the user experience is improved.

The above-mentioned embodiments only express the embodiments of the present invention, and the description thereof is specific and detailed, but the invention can not be understood as the limitation of the patent scope of the present invention, but all the technical solutions obtained by adopting the equivalent substitution or equivalent transformation should fall within the protection scope of the present invention.

Claims (9)

1. A touch panel is characterized by comprising a transparent substrate, a BM layer, an IM layer and an antireflection film; the transparent substrate is provided with a first surface and a second surface which are oppositely arranged, the BM layer is arranged on the first surface of the transparent substrate, and the IM layer covers the BM layer and the transparent substrate without the BM layer; the antireflection film is arranged on the second surface of the transparent substrate; wherein the IM layer comprises a plurality of pattern blocks arranged in an array on the BM layer.

2. The touch panel of claim 1, wherein the transparent substrate is a glass substrate.

3. The touch panel of claim 1, wherein the pattern block is formed by a yellow light process.

4. The touch panel of claim 1, wherein the pattern block is circular or polygonal.

5. The touch panel of claim 1, wherein the BM layer is formed by a printing or photolithography process.

6. The touch panel of claim 1, wherein the transparent substrate comprises a window area and a non-window area, and the BM layer is disposed in the non-window area of the transparent substrate; the IM layer covers the entire window area and the non-window area.

7. The touch panel of claim 1, wherein the IM layer comprises a silicon nitride film layer and a silicon oxide film layer stacked together.

8. The touch panel of claim 1, wherein the antireflection film is formed by alternately laminating high refractive index material layers and low refractive index material layers.

9. The touch panel of claim 1, further comprising a first ITO layer, a first OC layer, a second ITO layer, a metal film layer, and a second OC layer, which are sequentially stacked, wherein the first ITO layer is disposed on the IM layer.

Images