Display screen assembly and intelligent blackboard

Abstract

The utility model discloses a display screen assembly and an intelligent blackboard. The intelligent blackboard comprises a touch screen body and an optical anti-reflection film. Wherein the touch screen main body is of an In-cell structure; the optical anti-reflection film is attached to the surface of cover plate glass of the touch screen body. According to the utility model, the In-cell structure is selected, the thinning and the light weight of the panel are simultaneously realized, and in the aspect of the thinning effect, the In-cell structure is thinner than a single-chip glass touch control structure and an On-cell structure and is about 0.3-0.4 mm, so that the large-size intelligent blackboard can be lightened and thinned more favorably.

Description

Technical Field

[0001] The utility model relates to the technical field of smart blackboards, and in particular to a display screen component and a smart blackboard. Background Art

[0002] The smart blackboard, also known as the smart classroom interactive blackboard, uses capacitive touch technology to combine the traditional handwriting blackboard and multimedia devices, and can easily switch between chalk writing and multimedia applications. The same area can be used for normal writing with chalk like an ordinary blackboard, or it can be used like a large Pad to touch and watch various rich multimedia applications such as PPT videos, pictures, animations, etc., achieving a combination of tradition and modernity.

[0003] At present, smart blackboards with 72-inch and even 92-inch touch screens have been launched on the market. Smart blackboards are teaching tools installed directly in the classroom. For this reason, smart blackboards are mostly installed by transmission wall-mounted installation. For large-sized smart blackboards, the larger the touch screen, the greater the corresponding thickness and weight, which will also put forward higher requirements for product transportation, wall-mounted installation accessories and installation requirements.

[0004] As display devices develop towards thinness and lightness, high-light-transmittance and thin display screen components have become an important research direction for display devices. This is also an important direction for improvement and optimization of the touch display screen of smart blackboards. For this purpose, this patent provides a display screen component and a smart blackboard. Utility Model Content

[0005] In order to overcome the above technical defects, the utility model provides a

[0006] In order to solve the above problems, the utility model is implemented according to the following technical solutions:

[0007] In a first aspect, the utility model provides a display screen assembly, comprising:

[0008] A touch screen body, wherein the touch screen body adopts an In-cell structure;

[0009] An optical anti-reflection film is attached to the surface of the cover glass of the touch screen body.

[0010] In combination with the first aspect, the utility model also provides a first preferred implementation manner of the first aspect, specifically, the optical anti-reflection film is a magnesium fluoride optical anti-reflection film deposited on the surface of the cover glass, and the optical anti-reflection film is a single-layer film.

[0011] In combination with the first aspect, the utility model further provides a second preferred implementation of the first aspect, specifically, the cover glass is a soda-lime silicate glass plate.

[0012] In combination with the first aspect, the utility model also provides a third preferred implementation scheme of the first aspect. Specifically, the touch screen body includes a cover glass, a polarizer, a first ITO layer, an encapsulation glass, an organic material layer, a second ITO layer and a glass substrate arranged in sequence from top to bottom.

[0013] In a second aspect, the utility model also provides a smart blackboard, including:

[0014] A touch screen, the touch screen comprising a screen frame, a back cover connected to the rear side of the screen frame, and a display screen assembly arranged on the screen frame, the display screen assembly comprising a touch screen body and an optical anti-reflection film, the touch screen body adopts an In-cell structure, and the optical anti-reflection film is attached to the surface of the cover glass of the touch screen body;

[0015] Two blackboards are respectively located on the left and right sides of the display screen assembly.

[0016] In combination with the second aspect, the utility model also provides a first preferred implementation of the second aspect, specifically, the optical anti-reflection film is a magnesium fluoride optical anti-reflection film deposited on the surface of the cover glass, and the optical anti-reflection film is a single-layer film.

[0017] In combination with the second aspect, the utility model further provides a second preferred implementation of the second aspect, specifically, the cover glass is a soda-lime silicate glass plate.

[0018] In combination with the second aspect, the utility model also provides a third preferred implementation scheme of the second aspect. Specifically, the touch screen body includes a cover glass, a polarizer, a first ITO layer, an encapsulation glass, an organic material layer, a second ITO layer and a glass substrate arranged in sequence from top to bottom.

[0019] In combination with the second aspect, the utility model also provides a fourth preferred implementation scheme of the second aspect. Specifically, the blackboard includes a blackboard frame and a composite panel arranged on the blackboard frame, and the composite panel includes a first paint film layer, a second paint film layer, a third paint film layer, a first metal panel, a first honeycomb panel, a honeycomb panel, a second honeycomb panel, a second metal panel and a plastic back panel arranged in sequence from front to back.

[0020] Compared with the prior art, the beneficial effects of the utility model are:

[0021] The utility model provides a display screen assembly, including a touch screen body and an optical anti-reflection film. The touch screen body adopts an In-cell structure; the optical anti-reflection film is attached to the surface of the cover glass of the touch screen body. The utility model adopts the In-cell structure, and at the same time realizes the thinning and lightness of the panel. From the perspective of thinning effect, In-Cell is thinner than the single-piece glass touch structure and the On-Cell structure, about 0.3 to 0.4 mm, which is more conducive to the thinness of large-size smart blackboards.

[0022] On the other hand, compared with OGS technology, although the On-cell structure reduces the overall thickness of the touch module, the integration of the touch electrode structure on the color filter will affect the display effect and cause uneven display color. However, the In-cell structure technology improves the display image, and the screen image is clearer than the screen using On-cell technology. It can be applied to the smart blackboard for teaching, and can provide a better experience for teachers and students. The high light transmittance of the display assembly is achieved by cooperating with the optical anti-reflection film.

[0023] The utility model also provides a smart blackboard, which is provided with the above-mentioned display screen assembly and also has the technical effect of the above-mentioned display screen assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings, wherein:

[0025] Figure 1 It is a structural schematic diagram of the smart blackboard of the utility model;

[0026] Figure 2 It is a schematic diagram of the assembly of the smart blackboard of the utility model;

[0027] Figure 3 It is a structural schematic diagram of the touch screen main body of the utility model;

[0028] Figure 4 It is a schematic diagram of the layer structure of the blackboard of the utility model;

[0029] In the figure:

[0030] 100-touch screen, 101-optical anti-reflection film;

[0031] 200-Blackboard;

[0032] 1-first paint film layer, 2-second paint film layer, 3-third paint film layer, 4-first metal panel, 5-first honeycomb panel, 6-honeycomb panel, 7-second honeycomb panel, 8-second metal panel, 9-plastic back panel. DETAILED DESCRIPTION

[0033] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0034] Embodiment 1

[0035] like Figure 3 As shown, the first embodiment provides a display screen assembly, which includes a touch screen body and an optical anti-reflection film. The touch screen body adopts an In-cell structure, and the optical anti-reflection film is attached to the surface of the cover glass of the touch screen body.

[0036] The main innovations of this utility model are as follows:

[0037] On the one hand, the In-cell structure is specifically selected, which helps to reduce the thickness and weight of the components and meet the production and use needs of large-size smart blackboards. The In-cell structure also realizes the thinning and lightweight of the panel. From the perspective of thinning effect, In-Cell is thinner than the single-piece glass touch structure and On-Cell structure, about 0.3 to 0.4 mm, which is more conducive to the thinness of large-size smart blackboards. On the other hand, compared with OGS technology, although the On-cell structure reduces the overall thickness of the touch module, the touch electrode structure is integrated on the color filter, which will affect the display effect and cause uneven display color. With the In-cell structure technology, the display of the screen has been improved, and the screen picture is clearer than the screen using On-cell technology. It can be used on the smart blackboard for teaching, and can obtain a better experience for teachers and students.

[0038] On the other hand, by attaching the optical anti-reflection film to the surface of the cover glass of the touch screen body, high light transmittance of the display screen assembly is achieved, which can be used to improve the transparency and contrast of the display screen, make the image clearer, and provide better visibility under different lighting conditions.

[0039] In a specific implementation, the optical anti-reflection film is a magnesium fluoride optical anti-reflection film deposited on the surface of the cover glass, and the optical anti-reflection film is a single-layer film. The deposition technology of the optical anti-reflection film is common knowledge, and the ZZS-800 vacuum coating system can be used for deposition. Specifically, the deposited film thickness of the optical anti-reflection film is about 400nm.

[0040] In a specific implementation, the cover glass may be a soda-lime-silicate glass plate. Similarly, other commercial glass plates may also be used. The soda-lime-silicate glass plate is a glass with silicon dioxide, calcium oxide and sodium oxide as main components.

[0041] In a specific implementation, Figure 3As shown, the touch screen body includes a cover glass, a polarizer, a first ITO layer, an encapsulation glass, an organic material layer, a second ITO layer and a glass substrate which are arranged in sequence from top to bottom.

[0042] Specifically, the In-cell structure is a structure of an existing touch display device in the art, and will not be described in detail here.

[0043] Embodiment 2

[0044] This second embodiment provides a smart blackboard, which is assembled and produced using the same display screen components as those in the first embodiment. Figure 1 to Figure 4 As shown, the preferred structure of a smart blackboard provided by the utility model.

[0045] like Figure 1 As shown, this embodiment 2 also provides a smart blackboard, which includes:

[0046] A touch screen 100, the touch screen includes a screen frame, a back cover connected to the rear side of the screen frame, and a display screen assembly arranged on the screen frame, the display screen assembly includes a touch screen body and an optical anti-reflection film, the touch screen body adopts an In-cell structure, and the optical anti-reflection film is attached to the surface of the cover glass of the touch screen body.

[0047] Two blackboards 200 are respectively located on the left and right sides of the display screen assembly.

[0048] It should be noted that the display screen assembly of the touch screen has the same structure and principle as that in the first embodiment.

[0049] The smart blackboard of the utility model includes a main screen and a secondary screen arranged mutually. The main screen is a touch screen that can be operated by touch and presents teaching content in the form of pictures, videos, etc. The secondary screen is a blackboard used for traditional teaching and can be used for users to write on the blackboard to present teaching content in the form of blackboard writing. The combination of the main screen and the secondary screen can realize the combination of traditional teaching and electronic teaching, and improve the teaching effect.

[0050] In the specific implementation, Figure 4 As shown, the blackboard includes a blackboard frame and a composite panel arranged on the blackboard frame, and the composite panel includes a first paint film layer 1, a second paint film layer 2, a third paint film layer 3, a first metal panel 4, a first honeycomb panel 5, a honeycomb panel 6, a second honeycomb panel 7, a second metal panel 8 and a plastic back panel 9 which are arranged in sequence from front to back.

[0051] The upper and lower end surfaces of the blackboard and the touch screen are arranged flush with each other, and the horizontal length of the blackboard is smaller than that of the touch screen.

[0052] The blackboard of this patent has been improved on the premise of meeting national industry standards. In order to reduce the weight of the blackboard and facilitate writing, the writing board does not use heavy and fragile glass materials, but a metal sandwich honeycomb board structure. The structure of the board is as follows Figure 2 As shown, the main material is honeycomb panel, with honeycomb panel core sandwiched between the front and rear honeycomb panels, and a metal panel is also designed on the outer layer of the front and rear honeycomb panels. The thickness of the metal panel is generally 0.3-0.4mm. Three layers of roller coating or paint film are applied on the outer surface of the metal panel, so that one side of the board is painted black or dark green, and the other side is directly composited with plastic board, such as UV board, PVC board, etc. The whole board is then wrapped with a metal frame. The black or dark green side is treated in a special way to make the surface roughness Ra1.6-3.2μm, the paint film adhesion reaches level 3, and it is impact-resistant and wear-resistant, does not fade, does not fall off, is durable, has a good writing feel, does not slip, does not reflect light, has clear handwriting, is easy to write, and is easy to wipe, and there is less dust when writing with chalk. The overall board surface is strong and durable, has good impact resistance, a flat surface that is not easy to deform, and is light in weight, convenient and practical.

[0053] In a specific implementation, the metal panel is made of iron plate, and magnetic nails can be used to hang pictures, which is convenient and practical. The design of the back panel is to cooperate with the metal panel to enhance the structural strength of the blackboard, while maintaining the overall structure lightweight.

[0054] In a specific implementation, the honeycomb panel is an aluminum honeycomb panel. The sandwich structure formed by the two layers of honeycomb panels can provide structural support while maintaining the overall structure lightweight. The honeycomb panel is preferably a plastic sheet, such as a PVC board.

[0055] Among them, the paint film layer, paint film material and process are the conventional technical means for producing traditional blackboards in this field, and the utility model does not elaborate on them.

[0056] For other structures of the display screen assembly and smart blackboard described in this embodiment, refer to the prior art.

[0057] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Therefore, any modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A smart blackboard, characterized in that: include: A touch screen, the touch screen comprising a screen frame, a back cover connected to the rear side of the screen frame, and a display screen assembly arranged on the screen frame, the display screen assembly comprising a touch screen body and an optical anti-reflection film, the touch screen body adopts an In-cell structure, and the optical anti-reflection film is attached to the surface of the cover glass of the touch screen body; the touch screen body comprises a cover glass, a polarizer, a first ITO layer, an encapsulation glass, an organic material layer, a second ITO layer, and a glass substrate arranged in sequence from top to bottom; Two blackboards, the two blackboards are respectively located on the left and right sides of the display screen assembly; Among them, the blackboard includes a blackboard frame and a composite panel arranged on the blackboard frame, and the composite panel includes a first paint film layer, a second paint film layer, a third paint film layer, a first metal panel, a first honeycomb panel, a honeycomb panel, a second honeycomb panel, a second metal panel and a plastic back panel arranged in sequence from front to back.

2. A smart blackboard according to claim 1, characterized in that: The optical anti-reflection film is a magnesium fluoride optical anti-reflection film deposited on the surface of the cover glass, and the optical anti-reflection film is a single-layer film.

3. A smart blackboard according to claim 2, characterized in that: The cover glass is a soda-lime silicate glass plate.

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