CN212990347U

CN212990347U - Ultra-thin electronic blackboard

Info

Publication number: CN212990347U
Application number: CN202020314208.1U
Authority: CN
Inventors: 刘泽江; 牛立军
Original assignee: Suzhou Youen Information Technology Co ltd
Current assignee: Suzhou Youen Information Technology Co ltd
Priority date: 2020-03-13
Filing date: 2020-03-13
Publication date: 2021-04-16
Anticipated expiration: 2030-03-13

Abstract

The utility model discloses an ultra-thin type electronic blackboard, including an at least clipboard and an at least mutual movable plate, clipboard and interactive board are fixed through respective frame work mount respectively, interactive board is including clipboard, touch-control membrane, LCD panel and backlight unit, backlight unit further includes base plate, LED lamp area, light guide plate, the membrane of homogenizing light and reflection paper, reflection paper is located between base plate and the light guide plate, the membrane of homogenizing light is located a side surface that the light guide plate carried on the back in the base plate mutually, LED lamp area includes a plurality of LED components and circuit board, LED components equidistant installation is in a side surface of circuit board, the opposite side surface and the support bar bonding connection of circuit board, the circuit board one side of installing the LED component sets up face-to-face with the side surface of light guide plate. The utility model discloses ultra-thin type electronic blackboard can reduce medium plate and liquid crystal display panel deformation under the influence of environmental factor to improve definition and the precision of touch-control, user experience that show good.

Description

Ultra-thin electronic blackboard

Technical Field

The utility model relates to an ultra-thin type electronic blackboard belongs to education and equips technical field.

Background

Teaching lessons in the form of chalk used in conjunction with a blackboard has long been a very important position in the field of education. However, with the development of science and technology and the deeper understanding of some diseases, the disadvantages of the traditional chalk teaching are also gradually paid more attention.

In the campus nowadays, multimedia classrooms and electronic blackboards are common, wherein the multimedia classrooms generally comprise a multimedia computer, a liquid crystal projector, a projection screen, an audio device and the like. During actual teaching, a multimedia computer is used for displaying pre-prepared teaching materials through projection of a projector, and meanwhile, the cooperation of sound and man-machine interaction operation between a user and the computer are added according to needs to complete the teaching or training process. It can be seen that the multimedia teaching apparatus in the prior art also has some drawbacks, such as: the multimedia equipment is more, and a projector, a projection screen and the like need to be independently equipped; the projection screen is generally white and can not be used in an environment with bright light; the function is single, and the expansibility is avoided. The existing electronic blackboard is usually integrated with the display screen as a whole into the blackboard, which is not beneficial to the weight reduction, thinning and installation of the weight of the blackboard.

Disclosure of Invention

The utility model aims at providing an ultra-thin type blackboard, this ultra-thin type blackboard can reduce medium plate and liquid crystal display panel deformation under the influence of environmental factor to improve definition and the precision of touch-control, user experience that show are good.

In order to achieve the above purpose, the utility model adopts the technical scheme that: an ultrathin electronic blackboard comprises at least one writing board and at least one interactive board, wherein the writing board and the interactive board are respectively installed and fixed through respective outer frame frames;

the interactive board comprises a writing panel, a touch control film, a liquid crystal panel and a backlight module, wherein the touch control film is positioned between the writing panel and the liquid crystal panel and is pasted on one surface of the writing panel;

the periphery outer sides of the medium plate and the liquid crystal panel are respectively provided with a plurality of fixed blocks, the fixed blocks are fixed at the periphery edges of the writing panel or the touch control film, the periphery outer sides of the medium plate and the liquid crystal panel are respectively provided with a cover plate connected with the fixed blocks, one side of the cover plate is connected with the fixed blocks, and the other side of the cover plate is connected with the periphery edges of the medium plate and the liquid crystal panel in a pressing way;

the backlight module further comprises a substrate, an LED lamp strip, a light guide plate, a light homogenizing film and reflecting paper, wherein the reflecting paper is positioned between the substrate and the light guide plate, the light homogenizing film is positioned on the surface of one side of the light guide plate opposite to the substrate, the LED lamp strip is respectively arranged on the upper side and the lower side of the light guide plate and is respectively arranged on the substrate through a supporting strip;

the LED lamp strip comprises a plurality of LED elements and a circuit board, the LED elements are arranged on the surface of one side of the circuit board at equal intervals, the surface of the other side of the circuit board is connected with the supporting strips in an adhesive mode, and one side of the circuit board provided with the LED elements is arranged face to face with the side surface of the light guide plate;

the utility model discloses a light guide plate, including light guide plate, light homogenizing film, reflection paper, the edge of the left and right sides of light guide plate has opened the first installation through-hole of a plurality of respectively, and it has the second installation through-hole that corresponds with first installation through-hole to be located to open on the base plate under the light guide plate, all open the through-hole that corresponds with first installation through-hole, second installation through-hole on light homogenizing film and the reflection paper.

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

1. in the scheme, the diffusion film and the brightness enhancement film are stacked above the light-homogenizing film.

2. In the above solution, an elastic cushion layer is arranged between the lower surface of the cover plate and the upper surface of the liquid crystal panel.

3. In the above scheme, the four cover plates are respectively connected with the fixing block through a screw.

4. In the above scheme, the first mounting through hole is a strip-shaped through hole.

5. In the above scheme, the first mounting through hole is larger than the second mounting through hole.

6. In the above scheme, a stud is embedded in the second mounting through hole, and the stud sequentially passes through the through hole in the reflective paper, the first mounting through hole and the through hole in the light-equalizing film.

7. In the above scheme, the fixing block is an aluminum fixing block or a plastic fixing block.

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

1. the utility model discloses ultra-thin type electronic blackboard, the left and right sides edge of its light guide plate has opened the first installation through-hole of a plurality of respectively, and it has the second installation through-hole that corresponds with first installation through-hole to be located to open on the base plate under the light guide plate, all open on membrane of samming and the reflection paper has the through-hole that corresponds with first installation through-hole, second installation through-hole, through the setting of each through-hole, can further with light guide plate, the membrane of samming, reflection paper and base plate be fixed to the elder generation, prevent to take place relative migration and influence the samming effect on the horizontal direction between light guide plate and all kinds of blooming, and then guarantee to adopt the display effect of the backlight unit equipment.

2. The utility model discloses ultra-thin type electronic blackboard, it peels off liquid crystal display panel from traditional LCD, and assembles it as independent module with writing panel, touch membrane through the apron, cooperates with the backlight unit, just can realize touch-control and display operation, has simplified the flow of production, is convenient for process, very big improvement production efficiency, saving manufacturing cost; meanwhile, a plurality of fixed blocks are respectively arranged on the outer sides of the peripheries of the dielectric plate and the liquid crystal panel, the fixed blocks are fixed at the peripheral edges of the writing panel or the touch control film, cover plates connected with the fixed blocks are respectively arranged on the outer sides of the peripheries of the dielectric plate and the liquid crystal panel, one side of each cover plate is connected with the fixed block, and the other side of each cover plate is connected with the peripheral edges of the dielectric plate and the liquid crystal panel in a pressing mode, so that the deformation of the dielectric plate and the liquid crystal panel under the influence of environmental factors can be reduced, the display definition and the touch control precision are improved; furthermore, the liquid crystal panel is convenient to maintain and replace, the replacement of the liquid crystal panel cannot generate adverse effects on other components such as the touch control film, and the cost of maintenance is reduced.

Drawings

FIG. 1 is a schematic view of the ultra-thin electronic blackboard of the present invention;

FIG. 2 is a schematic view of the structure of a backlight module in the ultra-thin electronic blackboard of the present invention;

FIG. 3 is a side view of the backlight module structure in the ultra-thin electronic blackboard of the present invention;

FIG. 4 is a side view of the backlight module in the ultra-thin electronic blackboard of the present invention;

FIG. 5 is a top view of a partial structure of a backlight module of the ultra-thin electronic blackboard of the present invention;

fig. 6 is a side view of the ultra-thin electronic blackboard according to the present invention.

In the above drawings: 1. a writing board; 2. an interactive plate; 3. an outer frame; 1a, a writing panel; 2a, a touch control film; 3a, a dielectric plate; 4a, a liquid crystal panel; 5a, fixing blocks; 6a, a cover plate; 7a, a screw; 10a, a backlight module; 1b, a substrate; 2b, an LED lamp strip; 2b1, LED element; 2b2, circuit board; 3b, a light guide plate; 4b, a light homogenizing film; 5b, reflective paper; 6b, supporting strips; 7b, a diffusion film; 8b, a brightness enhancement film; 11b, a first mounting through hole; 12b, second mounting through holes.

Detailed Description

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific 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 specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1: an ultrathin electronic blackboard comprises at least one writing board 1 and at least one interactive board 2, wherein the writing board 1 and the interactive board 2 are respectively installed and fixed through respective outer frame frames 3;

the interactive plate 2 comprises a writing panel 1a, a touch film 2a, a liquid crystal panel 4a and a backlight module 10a, wherein the touch film 2a is positioned between the writing panel 1a and the liquid crystal panel 4a and is pasted on one surface of the writing panel 1a, the backlight module 10a is arranged on one side, opposite to the touch film 2a, of the liquid crystal panel 4a, and a transparent dielectric plate 3a is also arranged between the touch film 2a and the liquid crystal panel 4 a;

a plurality of fixing blocks 5a are respectively arranged on the outer sides of the peripheries of the dielectric plate 3a and the liquid crystal panel 4a, the fixing blocks 5a are fixed at the edges of the peripheries of the writing panel 1a or the touch control film 2a, cover plates 6a connected with the fixing blocks 5a are respectively arranged on the outer sides of the peripheries of the dielectric plate 3a and the liquid crystal panel 4a, one side of each cover plate 6a is connected with the corresponding fixing block 5a, and the other side of each cover plate 6a is connected with the edges of the peripheries of the dielectric plate 3a and the liquid crystal panel 4a in a pressing;

the backlight module 10a further comprises a substrate 1b, an LED strip 2b, a light guide plate 3b, a light-equalizing film 4b and a piece of reflective paper 5b, wherein the reflective paper 5b is located between the substrate 1b and the light guide plate 3b, the light-equalizing film 4b is located on a side surface of the light guide plate 3b opposite to the substrate 1b, and the LED strip 2b is respectively arranged on the upper side and the lower side of the light guide plate 3b and is respectively mounted on the substrate 1b through a supporting strip 6 b;

the LED lamp strip 2b comprises a plurality of LED elements 2b1 and a circuit board 2b2, the LED elements 2b1 are mounted on one side surface of the circuit board 2b2 at equal intervals, the other side surface of the circuit board 2b2 is connected with a supporting strip 6b in an adhering mode, and one side of the circuit board 2b2 on which the LED elements 2b1 are mounted is arranged in a face-to-face mode with the side surface of the light guide plate 3 b;

the edge of the left and right sides of light guide plate 3b has opened the first installation through-hole 11b of a plurality of respectively, and it has the second installation through-hole 12b that corresponds with first installation through-hole 11b to open on the base plate 1b that is located under light guide plate 3b, all open the through-hole that corresponds with first installation through-hole 11b, second installation through-hole 12b on membrane 4b and the reflection paper 5b of homogenizing.

A diffusion film 7b and a brightness enhancement film 8b are stacked above the light uniformizing film 4 b; an elastic cushion layer is arranged between the lower surface of the cover plate 6a and the upper surface of the liquid crystal panel 4 a; the four cover plates 6a are respectively connected with the fixed block 5a through screws 7 a; the fixing block 5a is an aluminum fixing block.

Example 2: an ultrathin electronic blackboard comprises at least one writing board 1 and at least one interactive board 2, wherein the writing board 1 and the interactive board 2 are respectively installed and fixed through respective outer frame frames 3;

The first mounting through hole 11b is a bar-shaped through hole; the first mounting through hole 11b is larger than the second mounting through hole 12 b; a stud is embedded into the second mounting through hole 12b and sequentially penetrates through a through hole in the reflecting paper 5b, the first mounting through hole 11b and a through hole in the light-equalizing film 4 b; the fixing block 5a is a plastic fixing block.

When the ultrathin electronic blackboard is adopted, the light guide plate, the light equalizing film, the reflecting paper and the substrate can be further fixed in a paired mode through the arrangement of the through holes, so that the light equalizing effect is prevented from being influenced by the relative offset between the light guide plate and various optical films in the horizontal direction, and the display effect of the backlight module equipment is further ensured;

in addition, the liquid crystal panel is stripped from the traditional liquid crystal display, and is assembled into an independent module together with the writing panel and the touch film through the cover plate, and the touch and display operation can be realized by matching with the backlight module, so that the production flow is simplified, the processing is convenient, the production efficiency is greatly improved, and the production cost is saved; meanwhile, the deformation of the dielectric plate and the liquid crystal panel under the influence of environmental factors can be reduced, so that the display definition and the touch precision are improved, and the user experience is good; furthermore, the liquid crystal panel is convenient to maintain and replace, the replacement of the liquid crystal panel cannot generate adverse effects on other components such as the touch control film, and the cost of maintenance is reduced.

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

1. An ultra-thin electronic blackboard, its characterized in that: the writing board comprises at least one writing board (1) and at least one interactive board (2), wherein the writing board (1) and the interactive board (2) are respectively installed and fixed through respective outer frame frames (3);

the interactive plate (2) comprises a writing panel (1 a), a touch film (2 a), a liquid crystal panel (4 a) and a backlight module (10 a), wherein the touch film (2 a) is positioned between the writing panel (1 a) and the liquid crystal panel (4 a) and is pasted on one surface of the writing panel (1 a), the backlight module (10 a) is arranged on one side, opposite to the touch film (2 a), of the liquid crystal panel (4 a), and a transparent dielectric plate (3 a) is further arranged between the touch film (2 a) and the liquid crystal panel (4 a);

the periphery outer sides of the dielectric plate (3 a) and the liquid crystal panel (4 a) are respectively provided with a plurality of fixing blocks (5 a), the fixing blocks (5 a) are fixed at the periphery edges of the writing panel (1 a) or the touch control film (2 a), the periphery outer sides of the dielectric plate (3 a) and the liquid crystal panel (4 a) are respectively provided with a cover plate (6 a) connected with the fixing blocks (5 a), one side of the cover plate (6 a) is connected with the fixing blocks (5 a), and the other side of the cover plate is connected with the periphery edges of the dielectric plate (3 a) and the liquid crystal panel (4 a) in a pressing mode;

the backlight module (10 a) further comprises a substrate (1 b), an LED lamp strip (2 b), a light guide plate (3 b), a light homogenizing film (4 b) and reflecting paper (5 b), wherein the reflecting paper (5 b) is positioned between the substrate (1 b) and the light guide plate (3 b), the light homogenizing film (4 b) is positioned on the surface of one side, back to the substrate (1 b), of the light guide plate (3 b), the LED lamp strip (2 b) is respectively arranged on the upper side and the lower side of the light guide plate (3 b) and is respectively installed on the substrate (1 b) through a supporting strip (6 b);

the LED lamp strip (2 b) comprises a plurality of LED elements (2 b 1) and a circuit board (2 b 2), the LED elements (2 b 1) are mounted on one side surface of the circuit board (2 b 2) at equal intervals, the other side surface of the circuit board (2 b 2) is connected with the supporting bar (6 b) in an adhering mode, and one side of the circuit board (2 b 2) provided with the LED elements (2 b 1) is arranged in a face-to-face mode with the side surface of the light guide plate (3 b);

the utility model discloses a light guide plate (3 b) is installed to the left and right sides edge of light guide plate (3 b) has first installation through-hole of a plurality of (11 b) respectively, and it has second installation through-hole (12 b) that correspond with first installation through-hole (11 b) to open on base plate (1 b) that is located under light guide plate (3 b), all open the through-hole that corresponds with first installation through-hole (11 b), second installation through-hole (12 b) on light homogenizing membrane (4 b) and reflection paper (5 b).

2. The ultra-thin type electronic blackboard according to claim 1, wherein: and a diffusion film (7 b) and a brightness enhancement film (8 b) are stacked above the light uniformizing film (4 b).

3. The ultra-thin type electronic blackboard according to claim 1, wherein: an elastic cushion layer is arranged between the lower surface of the cover plate (6 a) and the upper surface of the liquid crystal panel (4 a).

4. The ultra-thin type electronic blackboard according to claim 1, wherein: the four cover plates (6 a) are respectively connected with the fixed block (5 a) through screws (7 a).

5. The ultra-thin type electronic blackboard according to claim 1, wherein: the first mounting through hole (11 b) is a strip-shaped through hole.

6. The ultra-thin type electronic blackboard according to claim 1 or 5, wherein: the first mounting through hole (11 b) is larger than the second mounting through hole (12 b).

7. The ultra-thin type electronic blackboard according to claim 1, wherein: a stud is embedded in the second mounting through hole (12 b), and the stud sequentially penetrates through the through hole in the reflecting paper (5 b), the first mounting through hole (11 b) and the through hole in the light homogenizing film (4 b).

8. The ultra-thin type electronic blackboard according to claim 1, wherein: the fixing block (5 a) is an aluminum fixing block or a plastic fixing block.