阅读说明：本技术 一种触摸屏与触摸显示屏 (A kind of touch screen and touch display screen ) 是由 王士敏 张超 池毓文 朱泽力 古海裕 于 2018-12-31 设计创作，主要内容包括：本发明提供一种触摸屏与触摸显示屏,所述触摸屏从上至下依次包括第一基板、触摸电极层、光刻油墨层、硬质膜层、丝印油墨层。在光刻油墨层与丝印油墨层之间设置一硬质膜层,所述硬质膜层可保护表面硬度较低的BM1免受后续工序划伤,同时,所述硬质膜层与光刻油墨层、丝印油墨层之间均具有良好的耐可靠性,形成良好的附着结合效果,可以提升产品的黑化效果与生产良品率。(The present invention provides a kind of touch screen and touch display screen, and the touch screen successively includes first substrate, touch electrode layer, photoetching ink layer, hard film layer, ink for screen printing layer from top to bottom.One hard film layer is set between photoetching ink layer and ink for screen printing layer; the hard film layer can protect the lower BM1 of surface hardness to scratch from subsequent handling; simultaneously; good resistance to reliability is all had between the hard film layer and photoetching ink layer, ink for screen printing layer; it forms good attachment and combines effect, the blackening effect and production yields of product can be promoted.)

1. a kind of touch screen, successively include from top to bottom first substrate (11), touch electrode layer (17), photoetching ink layer (12), Hard film layer (13), ink for screen printing layer (14), which is characterized in that the photoetching ink layer (12) and the ink for screen printing layer (14) Projection be covered in the edge region of the first substrate (11), the region of the projection covering of the hard film layer (13) is extremely It is not limited to cover the region that the projection of the photoetching ink layer is covered less, the film thickness of the hard film layer (13) is 10- 400nm；

It is divided into light tight region and transmission region, the photoetching ink layer (12) and ink for screen printing layer on the first substrate (11) (14) the projection overlay area formed on the first substrate (11) is light tight region, other areas on first substrate (11) Domain is transmission region.

2. touch screen according to claim 1, which is characterized in that the hard film layer (13) is TiO_X、SiN_X、SiON_X、 Nb₂O₅、SiO、SiO₂, one of MgF or multiple material the monolayer material film layer or multilayer material combination film layer that are constituted.

3. touch screen according to claim 2, which is characterized in that the hard film layer (13) is SiO₂With Nb₂O₅Material is handed over Film layer is combined for the multilayer material of superposition.

4. touch screen according to claim 1, which is characterized in that the first substrate (11) is far from the touch electrode layer (17) side has touch surface or viewing surface, and optical film layer (15) are arranged in the touch surface of the first substrate (11), The optical film layer (15) is disappear shadow film or AR film or AG film or AF film.

5. touch screen according to claim 1, which is characterized in that in the hard film layer (13) far from the first substrate (11) melanism film layer (16) are additionally provided on side.

6. touch screen according to claim 5, which is characterized in that the projection of the melanism film layer (16) is only covered in described Transmission region.

7. the touch screen stated according to claim 1, which is characterized in that the touch electrode layer (17) is ito thin film or nano silver Line or copper-containing metal grid or graphene or carbon nano tube structure are constituted.

8. a kind of touch display screen, from bottom to top successively include touch screen described in claim 1 constitute touch mould group (1), the One adhesive layer (2), polaroid (3), the second adhesive layer (4) and display module (6).

9. a kind of touch display screen, from bottom to top successively including described in the second substrate (7), the first adhesive layer (2), claim 1 Touch mould group (1) that touch screen is constituted, the second adhesive layer (4), polaroid (3), third adhesive layer (5) and display module (6).

10. according to touch display screen described in claim 8-9, which is characterized in that the first substrate and the second substrate have Translucency is glass, polyolefin base material, polycarbonate substrate, polyacrylate base material, high temperature resistance polyester film, fragrant adoption One of ether ketone group material, polyether sulfone substrate, polyimides or multiple material are constituted.

Technical field

The invention belongs to technical field of flat panel display, more particularly to touch field of display technology, specially a kind of touch screen With touch display screen.

Background technique

With rapid development scientific and technological in recent years, the intelligence such as mobile phone, tablet computer, laptop, smart television Electronic product has become part indispensable in people's daily life.Touch display screen is as a kind of simple, convenient and fast people Machine interactive mode has been widely used for the fields such as electronic equipment and mobile unit.

At this stage, Chang Liyong photoresist can photolithographic characteristics photoetching, exposure and imaging are carried out to the first substrate of touch screen Processing.The folded structure level of common touch screen cover board is from top to bottom successively are as follows: first substrate, photoresist, BM2 (ink for screen printing), The BM2 is the opaque ink for screen printing of black.With the progress of photolithographic techniques, currently there is a kind of novel black light quarter Glue, alternatively referred to as BM1 (photoetching ink), the BM1 have both can photoetching, light can be obstructed penetrate and the multiple effects such as viscous viscous medium. Theory says that the appearance of above-mentioned BM1 can make the first substrate of conventional touch screen cover board, the folded configuration formula of photoresist, BM2 It is changed into first substrate, BM1 form, to save raw material, reduce first substrate load thickness, and product appearance can be promoted Blackening effect.

However, the resistance to reliability due to BM1 is poor, when BM1 is bonded with subsequent mould group, subsequent mould group is on BM1 Adhesion is performed poor.Therefore currently employed BM1 has made on the first substrate as photoetching, the first substrate of cementing medium After BM1, still BM2 can be made on BM1 using screen printing mode, the folded configuration formula of touch screen cover board is from top to bottom successively at this time For first substrate, BM1, BM2, such folded configuration formula promotes the melanism optical property of cover board, still, between BM1 and BM2 Adhesion property it is still undesirable, cannot achieve stable between BM1 and BM2 and closely combined effect.Meanwhile the surface of BM1 Hardness is low, and surface hardness is pencil hardness 2H or so, so that easily scratching in silk-screen production BM2 and other subsequent handlings BM1 reduces the yields of product.

In view of problem above, it is necessary to which blackening effect can be promoted by developing one kind, while guarantee the touch of product yield Screen and touch display screen.

Summary of the invention

In view of the above-mentioned problems, the present invention, which provides one kind, can promote blackening effect, while guaranteeing the touch of product yield Screen and touch display screen.

In order to achieve the above technical purposes, touch screen provided by the invention successively includes first substrate, touches from top to bottom Electrode layer, photoetching ink layer, IM2 (hard film layer) and ink for screen printing layer, the photoetching ink layer are covered in the first base by projecting The BM1 of plate edge is constituted, and the ink for screen printing layer is equally made of the BM2 that projection is covered in first substrate edge. It is regarded from the viewing surface of the touch screen, the region of covering is not projected as the region VA (visible area by BM1 and BM2 on first substrate Domain), it by the region of BM1 or BM2 projection covering is the region BM (not visible region), the throwing of the hard film layer on first substrate Shadow overlay area is at least not limited to cover the covered region of the photoetching ink layer projection.The touch electrode layer is ITO One of materials such as film, nano-silver thread, copper-containing metal grid, graphene, carbon nano tube structure or multiple material are constituted.

The IM2 is TiO_X、SiN_X、SiON_X、Nb₂O₅、SiO、SiO₂, the monolayer material film layer that is constituted of the materials such as MgF or IM2 can be made on the BM1, by TiO by multilayer material composite film by vapor deposition, coating, sputtering way_X、SiN_X、 SiON_X、Nb₂O₅、SiO、SiO₂, have between one of MgF or the multiple material IM2 and BM1 that are constituted it is good resistance to reliable Property, IM2 has preferable adhesive force in conjunction with BM1.Using vapor deposition or sputtering way, obtained IM2 film layer yields with it is attached The performances such as stability it is more excellent, adhesive force is up to 5B or more.

The present invention also provides a kind of touch display screen, the touch display screen from bottom to top successively includes by above-mentioned touch screen Touch mould group, the first adhesive layer, polaroid, the second adhesive layer and the display module of composition.The touch electrode layer 17 is set to The lower surface of the first substrate.

In other technical solutions, another touch display screen is also provided, the touch display screen is from bottom to top successively Including the second substrate, the first adhesive layer, the touch mould group being made of above-mentioned touch screen, the second adhesive layer, polaroid, third bonding Layer and display module.It include first substrate in the touch mould group, the touch electrode layer 17 is set to the first substrate Upper surface.

The first substrate and the second substrate have translucency, can be glass, polyolefin base material, polycarbonate substrate, gather Acrylate substrate, PET film (high temperature resistance polyester film), aromatic polyether ketone base material, polyether sulfone substrate, PI film (polyimides) One of equal materials or multiple material are constituted.

In preferred technical solution, the first substrate and the second substrate are glass, PI film (polyimides) or PET film (high temperature resistance polyester film).

The present invention provides a kind of touch screen and touch display screen, and an IM2 film layer, the IM2 are arranged between BM1 and BM2 Film layer can protect the lower BM1 of surface hardness to scratch from subsequent handling, meanwhile, between the IM2 film layer and BM1, BM2 It with good resistance to reliability, forms good attachment and combines effect, the blackening effect and production yields of product can be promoted.

Detailed description of the invention

Fig. 1 is the first structure diagram of touch screen of the invention；

Fig. 2 is the second structural schematic diagram of touch screen of the invention；

Fig. 3 is the third structural schematic diagram of touch screen of the invention；

Fig. 4 is the 4th structural schematic diagram of touch screen of the invention；

Fig. 5 is the first structure diagram of touch display screen of the invention；

Fig. 6 is the second structural schematic diagram of touch display screen of the invention.

Appended drawing reference:

1-touches mould group, the 2-the first adhesive layer, 3-polaroids, the 4-the second adhesive layer, 5-third adhesive layers, 6- Display module；

11-first substrates, 12-photoetching ink layers, 13-hard film layers, 14-ink for screen printing layers, 15-optical film layers, 16-melanism film layers, 17-touch electrode layers.

Specific embodiment

To illustrate clear touch screen provided by the invention and touch display screen, below in conjunction with Figure of description and embodiment Explanatory note is described in detail.

In the description of the present invention, it is to be understood that, term " center ", "upper", "lower", "front", "rear", " left side ", The orientation or positional relationship of the instructions such as " right side ", "vertical", "horizontal", "top", "bottom", "inner", "outside" is based on the figure Orientation or positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device of indication or suggestion meaning or Element must have a particular orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.

As shown in Figure 1, in order to achieve the above technical purposes, touch screen provided by the invention successively includes first from top to bottom Substrate 11, touch electrode layer 17, photoetching ink layer 12, hard film layer 13, ink for screen printing layer 14, the photoetching ink layer 12 by The BM1 that projection is covered in 11 edge region of first substrate is constituted, and the ink for screen printing layer 14 is equally covered in the by projection The BM2 in one substrate, 11 edge region is constituted, and the region of the projection covering of the hard film layer is at least not limited to covering institute The region that the projection of photoetching ink layer is covered is stated, the film thickness of the hard film layer 13 is 10-400nm.

In preferred technical solution, the hard film layer 13 is SiO₂With Nb₂O₅The multilayer material that material is alternately superimposed is compound Film layer, at this point, 130 points of densifications of the hard film layer, can effectively obstruct destruction of the steam to BM1, improve the resistance to of product Hou Xing.Meanwhile 13 hardness of hard film layer is in pencil hardness 5H-6H, can with effective protection BM1 subsequent blue film wire print, cutting, It during each process such as BM2 silk-screen, is not scraped off, improves support yield.

It is divided into the light tight region (or crying the region BM) of composition and the transparent area of display image on the first substrate 11 The projection that domain (or crying the region VA), the photoetching ink layer 12 and ink for screen printing layer 14 are formed on the first substrate 11 is covered Cover area is light tight region, other regions on first substrate 11 are the region VA.

Due to being divided into the light tight region of the projection covering of photoetching ink layer 12 or ink for screen printing layer 14 on first substrate 11 With the region VA of display image, optical effect that each region is occurred itself is different, it is difficult to meet optical homogeneity requirement, such as The integrally colour indexs requirement such as black.

In view of the above problems, as shown in Fig. 2, the first substrate 11 has touch surface or viewing surface, the touch surface In side of the first substrate 11 far from the touch electrode layer 17, usually carried out in the touch surface or viewing surface of first substrate 11 Optical treatment, for example, carrying out the modes such as surface coating or patch optical film is arranged optical film layer 15, the optical film layer 15 can be to disappear Shadow film can also be AR film (antireflective coating), AG film (anti-dazzle film) and AF film (fingerprint proof membrane).

The AR (antireflective coating) can be for by high-index material TiO_X、ZrO2、Si₃N₄、Ta₂O₅、Nb₂O₅Etc. single or mixed Condensation material film layer and low-index material SiO, SiO₂, the single or mixing material film layer alternate cycles such as MgF2, MgO be sputtered at The composite membrane constituted on one substrate, the composite membrane are provided simultaneously with the effect of filter blue light and antireflective, while also having certain disappear Shadow effect can properly increase the optical homogeneity on 11 surface of first substrate.

However, this touch surface or viewing surface in first substrate 11 carries out surface coating or pastes the processing mode of optical film Transparent area and alternatively non-transparent district are had an impact simultaneously, due to being divided into photoetching ink layer 12 or ink for screen printing layer 14 on the downside of first substrate The light tight region of composition and the region VA of display image, optical effect that each region is occurred itself is different, in first substrate Touch surface and viewing surface carry out optical treatment, are still difficult to meet optical homogeneity requirement, for example integrally the colour indexs such as black are wanted It asks, and the display experience of touch surface or viewing surface can be significantly affected.

In order to solve the problems, such as that the one is black or optical homogeneity, as shown in figure 3, can be directly in first substrate 11 PH effect is carried out on the hard film layer 13 of side, is provided on side of the hard film layer 13 far from the first substrate 11 Melanism film layer 16.The melanism film layer 16 can be the shadow film that disappears, and can also be AR film, or be the composite membrane of disappear shadow film and AG film, or Person is the composite membrane of shadow film, AF film of disappearing.

By the way that melanism film layer 16 is arranged, so that from touch surface and viewing surface direction, the photoetching ink layer 12 or silk Ink layer 14 constitute light tight region and display image the region VA, be lighttight black so that product reach compared with The black appearance of good uniform one.

When the region VA shows image, the light source of 11 downside of first substrate has remained to light effective enough through the VA The melanism film layer 16 in region, can satisfy visual experience requirement.

As shown in figure 4, the region for being only covered in transparent area to projection on the hard film layer 13 of 11 inside of first substrate is done Individual pH effect has the black of blackening effect by the side setting on hard film layer 13 far from the first substrate 11 Change film layer 16, so that product reaches the integrally optimal appearance such as black.In other examples, it can be combined with the first base Optical treatment in 11 touch surface of plate and viewing surface, such as setting AR film, AG film improve the various of product with AF film mode Optical property.

As shown in figure 5, the present invention also provides a kind of touch display screen, the touch display screen from bottom to top successively include by Touch mould group 1, the first adhesive layer 2, polaroid 3, the second adhesive layer 4 and the display module 6 that above-mentioned touch screen is constituted.

As shown in fig. 6, the present invention also provides another touch display screen, the touch display screen from bottom to top successively includes The second substrate 7, the first adhesive layer 2, the touch mould group 1 being made of above-mentioned touch screen, the second adhesive layer 4, polaroid 3, third are glued Tie layer 5 and display module 6.

The above are the preferred embodiments of touch screen provided by the invention and touch display screen, can not be interpreted as to the present invention The limitation of rights protection scope, those skilled in the art will be appreciated that, in the absence of conflict, embodiment herein-above set forth and Feature in embodiment can also be combined with each other, and without departing from the inventive concept of the premise, can also do a variety of improvement or replacement, All improvement or replacement all should be in the scope of the present invention, i.e., the scope of the present invention should be wanted with right Subject to asking.