CN213676136U - Multifunctional writing board - Google Patents

Abstract

The utility model discloses a multifunctional writing board, which comprises a frame, a first writing board and a second writing board which are respectively arranged on the frame, wherein the respective writing surfaces of the first writing board and the second writing board are positioned on the same plane; the backlight module comprises a back plate, a liquid crystal panel, a light guide plate, a light homogenizing film, a light source and a light source, wherein the back plate is sequentially overlapped with the light source, the light guide plate and the light homogenizing film between the back plate and the liquid crystal panel; a transparent partition plate is arranged between the touch film and the liquid crystal panel, a plurality of supporting blocks are arranged below the transparent partition plate at intervals, the upper end faces of the supporting blocks are in abutting contact with the lower end face of the transparent partition plate, and the lower end face of each supporting block is in contact connection with the frame. The utility model discloses can avoid liquid crystal display panel to the interference of touch-control membrane when reducing distance between liquid crystal display panel and the touch-control membrane, both can the attenuate thickness, improved the touch-control precision again, prevented the condition such as local touch failure from appearing.

Description

Multifunctional writing board

Technical Field

The utility model relates to a multifunctional writing board belongs to education and equips technical field.

Background

The traditional teaching equipment is new, and the combination of blackboard and multimedia is adopted more and more no matter in a practical training machine room or in a common classroom. As time has migrated, both appear to be very common and practical teaching devices. However, in the existing teaching, a computer and a projector are mostly used for matching, PPT is usually required to be done before class for teaching in a projection mode, and a course cannot be flexibly written on site, so that the flexibility of time use is poor.

Disclosure of Invention

The to-be-solved technical problem of the utility model is to provide a multifunctional writing board, this multifunctional writing board can avoid liquid crystal display panel to the interference of touch-control membrane when reducing distance between liquid crystal display panel and the touch-control membrane, both can the attenuate thickness, improved the touch-control precision again, prevented the condition such as local touch-control failure from appearing.

In order to solve the technical problem, the utility model discloses a technical scheme is: a multifunctional writing board comprises a frame, a first writing board and a second writing board, wherein the first writing board and the second writing board are respectively arranged on the frame, and the writing surfaces of the first writing board and the second writing board are positioned on the same plane;

a touch film, a liquid crystal panel and a back plate are sequentially arranged behind the first writing board opposite to the writing surface of the first writing board, the touch film is pasted on the back surface of the first writing board opposite to the writing surface of the first writing board, the back plate is arranged on the frame and located right behind the liquid crystal panel, and the liquid crystal panel is arranged on the back surface of the first writing board;

the backlight module comprises a back plate, a liquid crystal panel, a light guide plate, a light homogenizing film, a light source and a light source, wherein the back plate is sequentially overlapped with the light source, the light guide plate and the light homogenizing film between the back plate and the liquid crystal panel;

a transparent partition plate is arranged between the touch film and the liquid crystal panel, a plurality of supporting blocks are arranged below the transparent partition plate at intervals, the upper end faces of the supporting blocks are in abutting contact with the lower end face of the transparent partition plate, and the lower end face of each supporting block is in contact connection with the frame.

The further improved scheme in the technical scheme is as follows:

1. in the scheme, the edges of the periphery of the liquid crystal panel and the transparent partition plate are arranged on the rear surface of the first writing board through a pressing bar.

2. In the above scheme, the first writing board is a light-transmitting glass blackboard.

3. In the scheme, the second writing board is a glass blackboard or an acrylic writing board.

4. In the above scheme, the transparent partition board is a polyurethane board.

Because of above-mentioned technical scheme's application, compared with the prior art, the utility model have the following advantage:

1. the utility model relates to a multifunctional writing board, which completely reserves the writing area of the traditional blackboard through the combination of two writing boards, and organically combines the functions of playing display and touch interaction to the blackboard without changing the appearance of the traditional blackboard, thereby not only providing the same writing area for teachers who are accustomed to writing on the blackboard, but also providing good foundation for the teachers to more intuitively and vividly display teaching contents; in addition, the liquid crystal panel is positioned between the touch film and the back plate and connected to the rear surface of the writing panel, the liquid crystal panel is peeled from the traditional display screen and is assembled with the touch film and the panel into a whole, the cost is saved, the weight of the blackboard is lightened, the production flow is simplified, and the productivity and the yield are improved.

2. The utility model relates to a multifunctional writing board, it has reflection paper, light guide plate and light-equalizing membrane to superpose in proper order between backplate and the liquid crystal display panel on its backplate, the both sides that just are located the light guide plate on the backplate are provided with a mounting bar respectively, and two mounting bars are relative respectively all install a lamp area on the surface for the light in lamp area is penetrated the light guide plate, and the light source structure of independent setting, the structure is frivolous simple, convenient assembling and technological requirement are low, can also directly press close to install in the liquid crystal display panel rear, further attenuate thickness.

3. The utility model relates to a multifunctional writing board, a transparent clapboard is arranged between a touch control film and a liquid crystal panel, and the arrangement of the transparent clapboard can avoid the interference of the liquid crystal panel to the touch control film while reducing the distance between the liquid crystal panel and the touch control film, thereby reducing the thickness, improving the touch control precision, and preventing the occurrence of local touch control failure and other conditions; in addition, a plurality of supporting blocks are arranged below the transparent partition plate at intervals, the upper end face of each supporting block is in abutting contact with the lower end face of the transparent partition plate, the lower end face of each supporting block is in contact connection with the frame, the supporting blocks are further arranged between the transparent partition plate and the frame, the transparent partition plate is supported through the frame, the load of the pressing strips is reduced, the assembly stability of all parts is improved, and therefore the definition and the touch precision of long-time use are guaranteed.

Drawings

FIG. 1 is a schematic structural view of a multifunctional writing board of the present invention;

FIG. 2 is a schematic side sectional view of a multifunctional writing board of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2;

FIG. 4 is an enlarged view of a second portion of the structure of FIG. 2;

fig. 5 is a partial structural front view of the multifunctional writing board of the present invention.

In the above drawings: 1. a first writing pad; 2. a second writing board; 3. a touch film; 4. a liquid crystal panel; 5. a back plate; 6. a reflective paper; 7. a light guide plate; 8. a light homogenizing film; 9. mounting a bar; 10. a light strip; 11. layering; 12. a transparent partition; 13. a support block; 14. a diffusion membrane; 15. a brightness enhancement film; 16. and (5) a frame.

Detailed Description

In the description of this patent, it is noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; 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 meaning of the above terms in this patent may be specifically understood by those of ordinary skill in the art.

Example 1: a multifunctional writing board comprises a frame 16, a first writing board 1 and a second writing board 2 which are respectively arranged on the frame 16, wherein the respective writing surfaces of the first writing board 1 and the second writing board 2 are positioned on the same plane;

a touch film 3, a liquid crystal panel 4 and a back plate 5 are sequentially arranged behind the first writing board 1 opposite to the writing surface of the first writing board, the touch film 3 is attached to the back surface of the first writing board 1 opposite to the writing surface of the first writing board, the back plate 5 is arranged on a frame 16 and is positioned right behind the liquid crystal panel 4, and the liquid crystal panel 4 is arranged on the back surface of the first writing board 1;

the back plate 5 and the liquid crystal panel 4 are sequentially overlapped with a reflecting paper 6, a light guide plate 7 and a light homogenizing film 8, the back plate 5 and the two sides of the light guide plate 7 are respectively provided with a mounting bar 9, and the surfaces of the two mounting bars 9 which are opposite to each other are respectively provided with a lamp strip 10, so that light of the lamp strip 10 enters the light guide plate 7;

a transparent partition plate 12 is arranged between the touch film 3 and the liquid crystal panel 4, a plurality of supporting blocks 13 are arranged below the transparent partition plate 12 at intervals, the upper end surfaces of the supporting blocks 13 are in contact with the lower end surfaces of the transparent partition plate 12 in a pressing mode, and the lower end surfaces of the supporting blocks 13 are in contact connection with the frame 16.

The liquid crystal panel 4 and the edges of the transparent partition plate 12 are mounted on the rear surface of the first writing plate 1 through a pressing strip 11; the first writing board 1 is a transparent glass blackboard; the second writing board 2 is a glass blackboard.

Example 2: a multifunctional writing board comprises a frame 16, a first writing board 1 and a second writing board 2 which are respectively arranged on the frame 16, wherein the respective writing surfaces of the first writing board 1 and the second writing board 2 are positioned on the same plane;

a touch film 3, a liquid crystal panel 4 and a back plate 5 are sequentially arranged behind the first writing board 1 opposite to the writing surface of the first writing board, the touch film 3 is attached to the back surface of the first writing board 1 opposite to the writing surface of the first writing board, the back plate 5 is arranged on a frame 16 and is positioned right behind the liquid crystal panel 4, and the liquid crystal panel 4 is arranged on the back surface of the first writing board 1;

the back plate 5 and the liquid crystal panel 4 are sequentially overlapped with a reflecting paper 6, a light guide plate 7 and a light homogenizing film 8, the back plate 5 and the two sides of the light guide plate 8 are respectively provided with a mounting bar 9, and the surfaces of the two mounting bars 9 which are opposite to each other are respectively provided with a lamp strip 10, so that light of the lamp strip 10 enters the light guide plate 7;

a transparent partition plate 12 is arranged between the touch film 3 and the liquid crystal panel 4, a plurality of supporting blocks 13 are arranged below the transparent partition plate 12 at intervals, the upper end surfaces of the supporting blocks 13 are in contact with the lower end surfaces of the transparent partition plate 12 in a pressing mode, and the lower end surfaces of the supporting blocks 13 are in contact connection with the frame 16.

The second writing board 2 is an acrylic writing board; the transparent partition 12 is a polyurethane plate; the above-mentioned light-equalizing film 8 is stacked with a diffusion film 14 and a brightness enhancement film 15 in this order.

By adopting the multifunctional writing board, the writing area of the traditional blackboard is completely reserved through the combination of the two writing boards, the functions of playing display and touch interaction are organically combined on the blackboard while the appearance of the traditional blackboard is not changed, the same writing area can be provided for teachers who are accustomed to writing on the blackboard, and a good foundation is further provided for the teachers to more intuitively and vividly display teaching contents;

in addition, the liquid crystal panel is stripped from the traditional display screen and is assembled with the touch control film and the panel into a whole, so that the cost is saved, the weight of the blackboard is reduced, the production flow is simplified, and the productivity and the yield are improved;

in addition, the independently arranged light source structure is light, thin and simple in structure, convenient to assemble and low in process requirement, and can be directly installed behind the liquid crystal panel in a close manner to further reduce the thickness;

in addition, the transparent partition plate can reduce the distance between the liquid crystal panel and the touch film and simultaneously avoid the interference of the liquid crystal panel to the touch film, so that the thickness can be reduced, the touch precision is improved, and the situations of local touch failure and the like are prevented;

in addition, a supporting block is further arranged between the transparent partition plate and the frame, the transparent partition plate is supported through the frame, the load of the pressing strip is reduced, the assembly stability of each part is improved, and therefore the definition and the touch precision of long-time use are guaranteed.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims (5)

1. A multifunctional writing board is characterized in that: the multifunctional pen comprises a frame (16), and a first writing board (1) and a second writing board (2) which are respectively arranged on the frame (16), wherein the respective writing surfaces of the first writing board (1) and the second writing board (2) are positioned on the same plane;

a touch film (3), a liquid crystal panel (4) and a back plate (5) are sequentially arranged behind the first writing board (1) opposite to the writing surface of the first writing board, the touch film (3) is pasted on the back surface of the first writing board (1) opposite to the writing surface of the first writing board, the back plate (5) is installed on a frame (16) and located right behind the liquid crystal panel (4), and the liquid crystal panel (4) is installed on the back surface of the first writing board (1);

the backlight module is characterized in that reflection paper (6), a light guide plate (7) and a light homogenizing film (8) are sequentially overlapped on the back plate (5) and positioned between the back plate (5) and the liquid crystal panel (4), mounting strips (9) are respectively arranged on the back plate (5) and positioned on two sides of the light guide plate (7), and lamp strips (10) are respectively mounted on the surfaces, opposite to each other, of the two mounting strips (9) so that light of the lamp strips (10) can enter the light guide plate (7);

a transparent partition plate (12) is arranged between the touch film (3) and the liquid crystal panel (4), a plurality of supporting blocks (13) are arranged below the transparent partition plate (12) at intervals, the upper end faces of the supporting blocks (13) are in contact with the lower end faces of the transparent partition plate (12) in a pressing mode, and the lower end faces of the supporting blocks (13) are in contact connection with the frame (16).

2. A multi-function writing board according to claim 1, wherein: the liquid crystal panel (4) and the peripheral edges of the transparent partition plate (12) are arranged on the rear surface of the first writing board (1) through a pressing strip (11).

3. A multi-function writing board according to claim 1 or 2, wherein: the first writing board (1) is a light-transmitting glass blackboard.

4. A multi-function writing board according to claim 1 or 2, wherein: the second writing board (2) is a glass blackboard or an acrylic writing board.

5. A multi-function writing board according to claim 1 or 2, wherein: the transparent partition plate (12) is a polyurethane plate.

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