CN203572989U - Novel black-and-white shading film - Google Patents

Abstract

The utility model relates to the field of consumer electronic products such as cellphones and tablet PCs, and discloses a novel black-and-white shading film for reflection and shading at a light source of an electronic product. The shading film comprises a release film (1) and a substrate (5). The release film (1) is located at the top layer, and the substrate (5) is located at the bottom layer. An adhesive layer (2), a white coating (3) and a black coating (4) are arranged between the release film (1) and the substrate (5). The coatings of the shading film are prevented from being exposed in the air directly, and thus the shading film is better is stability, durability and wear resistance. The shading film can be widely used in reflection and shading of light sources of electronic products.

Description

A kind of novel black and white photomask

Technical field

The utility model relates to the consumer electronics product fields such as mobile phone, video camera, panel computer, relates in particular to the photomask using on a kind of portable type electronic product lens unit with photography, camera function.

Background technology

Along with development in science and technology, the pursuit of people to convenient life, more and more many portable type electronic products emerge, and in to the process of life seek, are also that science and technology has been proposed to new problem simultaneously.In these electronic products, refer more particularly to the electronic product of optical device, at light source place, all need to carry out reflective and shading, have to be positioned at table product inner, the outside that is positioned at product having, therefore, has also proposed new requirement to photomask.

In the prior art, its base material of traditional photomask is in middle, white or black coating are positioned at outermost layer, if such structure produce and use procedure in photomask surface have dirty be easy to cause need to carry out wiping time fade or light leak, and due to the impact of the factors such as environment for use, photomask stability, permanance, wearing quality are also had to higher requirement.

Utility model content

For the problems referred to above, the purpose of this utility model is to provide a kind of novel black and white photomask, by changing traditional physical arrangement, have more wear-resisting, durable, the feature that shading performance is more stable.

For achieving the above object, the technical scheme that the utility model adopts is:

A novel black and white photomask, comprises release film, base material, and described release film in orlop, also has successively from top to bottom adhesive layer, white coating, black coating in the superiors, base material between release film and base material.

Further, the thickness of described photomask is 10 ~ 200 μ m.

Adopt the preparing of described photomask be coated with, dry, be coated with again, oven dry, bonding method:

First, on the surface of base material, carry out black coating, toast processing simultaneously, black ink is dried;

Secondly, on the surface of painting black, carry out white coating, material is toasted to processing simultaneously, make white ink oven dry;

Finally, carry out glue application on white face, bonding release film toasts processing simultaneously, makes the solvent evaporates in glue and adheres to white ink.

Gain effect of the present utility model is: propose a kind of novel black and white photomask, release film in orlop, in the middle of dope layer is positioned at, is not directly exposed to outside in the superiors, base material.Photomask of the present utility model has better stability and durable, wear-resisting, can be widely used in reflective, the shading work of electric consumers light source.

Accompanying drawing explanation

Fig. 1 is the structural representation of the utility model photomask.

Embodiment

In order to make the technical characterictic of the utility model photomask clearer, clear and definite, below in conjunction with the drawings and specific embodiments, be further elaborated.

As shown in Figure 1, for structural representation of the present utility model, a kind of novel black and white photomask, comprise release film (1), base material (5), described release film (1) in the superiors, base material (5) in orlop, between release film (1) and base material (5), also have successively from top to bottom adhesive layer (2), white coating (3) and black coating (4), the thickness of described photomask is 10 ~ 200 μ m.

The shading of the utility model photomask refers to, measures the optical concentration of photomask with normalized optical densimeter, and optical concentration value is 5 to be judged as good light-proofness when above, and optical concentration value is less than at 5 o'clock and is judged as bad.Durable, wear-resisting referring to, photomask surface is stained with alcohol wipe and can not be decoloured, after wiping, on optical concentration measured value without impact.

The utility model is not limited to above-mentioned embodiment; anyone can draw other various forms of products under enlightenment of the present utility model; no matter but do any variation in its shape or structure; every have identical with a application or akin technical scheme, within all dropping on protection domain of the present utility model.

Claims (2)

1. a novel black and white photomask, comprise release film (1), base material (5), it is characterized in that, described release film (1) in orlop, also has successively from top to bottom adhesive layer (2), white coating (3), black coating (4) in the superiors, base material (5) between release film (1) and base material (5).

2. photomask according to claim 1, is characterized in that, the thickness of described photomask is 10 ~ 200 μ m.

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