Novel writing film

Abstract

The utility model belongs to the technical field of paper, and provides a novel writing film which comprises a bottom film and a protective film which are connected with each other, a dot code pattern is printed on the bottom film, the protective film covers the surface of the bottom film, and the protective film is made of waterproof materials. According to the utility model, the protective film and the bottom film printed with the code point patterns are connected into a whole, and the intelligent pen can identify the point code patterns on the bottom film through the protective film so as to record the type, source, page number, position, handwriting coordinates and the like of paper on a printed matter; after writing is completed, marks written on the protective film are removed through cleaning cloth and the like, next use is guaranteed, in this way, repeated use of the code point plate is achieved, and the use cost of the intelligent pen is reduced. And secondly, the protective film can protect the bottom film from being wetted by water, so that the bottom film is prevented from being damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of paper, and particularly relates to a new writing film. Background Art

[0002] A high-speed camera and a pressure sensor are usually equipped at the front end of an intelligent pen. When the pen tip moves on a piece of paper printed with a special dot code pattern (a micro version similar to a two-dimensional code but not affecting normal reading), the high-speed camera captures the movement trajectory of the pen tip, and the pressure sensor is used to judge whether it is in the writing state. These dot code patterns are composed of a group of black dots of the same size, and their positions accurately fall on the paper surface with 300 vertical and horizontal lines per inch. The dot codes are very small, and each dot is usually equivalent to the size of a 5% screen dot of 175 lines per inch. The dot codes are printed on ordinary paper by ordinary four-color offset printing, which will not cause any impact on the information of the book, but cannot be clearly distinguished by the naked eye, so they are also called invisible codes or invisible optical recognition codes. After the high-speed camera captures the dot code information, the MCU (micro control unit) or processing chip in the intelligent pen analyzes and decodes this information. It uses the OID (Optical Identify Digital) algorithm to identify different contents through different combinations of the codes, so as to determine information such as the position of the pen tip, the movement trajectory, the writing time, the writing speed, and the stroke order.

[0003] In the actual use process, the code point paper is a single-use consumable and cannot be reused after writing, with a low reuse rate. The intelligent pen relying on the code point paper cannot be used without the code point paper. Due to the particularity of the code point paper, ordinary printing devices cannot print out printing paper that meets the requirements, resulting in a high use cost of the intelligent pen. Content of the Utility Model

[0004] Aiming at the defects in the prior art, the utility model provides a new writing film to facilitate the reuse of the code point paper and reduce the use cost of the intelligent pen.

[0005] The new writing film provided by the utility model comprises a bottom film and a protective film which are connected to each other. The bottom film is printed with a dot code pattern, the protective film covers the surface of the bottom film, and the protective film is made of a waterproof material.

[0006] As can be seen from the above technical solutions, a new type of writing film provided by the present utility model connects a protective film and a bottom film printed with a dot code pattern into a whole. The intelligent pen can identify the dot code pattern on the bottom film through the protective film, so as to record the paper type, source, page number, position, handwriting coordinates, etc. on the printed matter; after writing, wipe the writing marks on the protective film with a rag or the like to ensure the next use, so as to realize the repeated use of the dot code board and reduce the use cost of the intelligent pen. Secondly, the protective film can protect the bottom film from being wet by water and prevent the bottom film from being damaged.

[0007] Preferably, both the bottom film and the protective film are made of transparent materials. When in use, the writing film is clamped between the pages for writing, and the transparent property can make the characters and patterns that need to be observed and recognized clearly visible, without affecting the observation of their appearance, color and details; and when the protective film is made of transparent material, the intelligent pen can identify the dot code pattern on the bottom film.

[0008] Preferably, the protective film is made of acrylic, PET, PVC or PC materials. These materials are heat-resistant and can effectively prevent boiling water from splashing onto the writing film and causing damage; and the acrylic material has high strength and strong wear resistance, and can effectively resist external scratching and abrasion, avoiding damage to the dot code pattern on the bottom film after the intelligent pen writes on the protective film.

[0009] Preferably, the bottom film is made of acrylic, PET, PVC or PC materials.

[0010] Preferably, the four peripheral edges of the bottom film and the protective film are bonded by transparent glue. Bonding the four peripheral edges of the bottom film and the protective film with transparent glue is to prevent the relative sliding of the bottom film and the protective film.

[0011] Preferably, the protective film is a transparent matte film. The matte material can make the intelligent pen write on the protective film and reduce the sliding of the intelligent pen when writing on the protective film. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts do not necessarily draw according to the actual proportion.

[0013] Figure 1 FIG. is a schematic structural diagram of a new type of writing film provided by an embodiment of the present utility model;

[0014] Figure 2 FIG. is a schematic structural diagram of a new type of writing film when in use provided by an embodiment of the present utility model.

[0015] The attached drawings show:

[0016] 1 - Writing film; 11 - Bottom film; 12 - Protective film; 2 - Printed matter; 3 - Clamping plate. Specific embodiments

[0017] Hereinafter, embodiments of the technical solution of the present utility model will be described in detail with reference to the attached drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present utility model, and therefore are only examples and cannot be used to limit the protection scope of the present utility model.

[0018] It should be noted that unless otherwise specified, the technical terms or scientific terms used in this application should have the ordinary meaning understood by those skilled in the art to which the present utility model belongs.

[0019] In this application, unless otherwise clearly defined and limited, terms such as "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] Figure 1 Schematic diagram of a novel writing film structure provided in an embodiment of the present utility model; Figure 2 Schematic diagram of the structure when a novel writing film provided in an embodiment of the present utility model is in use.

[0021] As Figure 1-2 shown, in this embodiment, a novel writing film for smart pen writing is provided, which includes a bottom film 11 and a protective film 12 connected to each other. A dot code pattern is printed on the bottom film 11, and the protective film 12 covers the surface of the bottom film 11, and the protective film 12 is made of a waterproof material. Among them, both the bottom film 11 and the protective film 12 are made of transparent materials. The four peripheral edges of the bottom film 11 and the protective film 12 are bonded by transparent glue to form a writing film 1 to prevent the relative sliding of the bottom film 11 and the protective film 12. After bonding, the formed writing film 1 still remains transparent, and the words and patterns on the printed matter 2 can be seen clearly; then the integrated writing film 1 is covered on the printed matter 2 and fixedly connected with a clamping plate 3 to prevent the writing film 1 from moving during writing with a smart pen, resulting in writing errors.

[0022] Furthermore, the above-mentioned protective film 12 is a transparent frosted film. The frosted material can reduce the sliding of the smart pen when writing on the protective film 12, and the smart pen can recognize the dot code pattern on the bottom film 11 through the protective film 12, so as to record the paper type, source, page number, position, handwriting coordinates, etc. on the printed matter; after writing, wipe the writing marks on the protective film 12 with a rag or the like to ensure the next use, so as to realize the repeated use of the code point board and reduce the use cost of the smart pen. Secondly, the protective film 12 can protect the bottom film 11 from being wet by water and prevent the bottom film from being damaged.

[0023] Both the above-mentioned protective film 12 and the bottom film 11 can be made of acrylic, PET, PVC or PC materials. In this embodiment, both the protective film 12 and the bottom film 11 are made of acrylic materials. The acrylic material has good transparency, which enables the text and patterns on the printed matter to be clearly displayed without affecting the visual effect; and this material has high strength and strong wear resistance, and can effectively resist external scratches and abrasions, avoiding damage to the dot code pattern caused by the pressure on the bottom film 11 when the smart pen writes on the protective film 12. Secondly, this material is heat-resistant and can prevent the user from accidentally knocking over boiling water.

[0024] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered by the scope of the claims and the specification of the present invention.

Claims

1. A new type of writing film, used for writing with a smart pen, characterized in that: It comprises a base film (11) and a protective film (12) which are connected to each other, wherein a dot code pattern is printed on the base film (11), and the protective film (12) covers the surface of the base film (11), and the protective film (12) is made of waterproof material.

2. A novel writing film according to claim 1, characterized in that: The base film (11) and the protective film (12) are both made of transparent materials.

3. A novel writing film according to claim 1, characterized in that: The protective film (12) is made of acrylic, PET, PVC or PC material.

4. A novel writing film according to claim 1, characterized in that: The base film (11) is made of acrylic, PET, PVC or PC material.

5. A novel writing film according to claim 1, characterized in that: The base film (11) and the protective film (12) are bonded together around their peripheries by transparent glue.

6. A novel writing film according to claim 1, characterized in that: The protective film (12) is a transparent frosted film.

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