KR102483767B1 - Electronic Board with Minimal Distance between Panel and Cover Glass by Applying Eco-friendly Method - Google Patents

Abstract

The present invention relates to an electronic blackboard which minimizes a distance between a panel and a cover glass by applying an eco-friendly method, and more specifically, to an electronic blackboard, which improves transmittance and viewing angle of a screen by minimizing the distance between a glass substrate (cover glass) and an LCD panel constituting the screen of an electronic board by applying an eco-friendly method, and at the same time, and minimizes elements for structurally fixing the glass substrate to minimize the unnecessary elements.

Description

Electronic board with Minimal Distance between Panel and Cover Glass by Applying Eco-friendly Method}

The present invention relates to an electronic board in which the distance between a panel and a cover glass is minimized by applying an eco-friendly method, and more particularly, the distance between a glass substrate (cover glass) constituting the screen of the electronic board and an LCD panel is reduced by using an eco-friendly method. The present invention relates to an electronic blackboard in which unnecessary elements are minimized by minimizing elements for structurally fixing a glass substrate as well as improving transmittance and viewing angle of a screen by applying and minimizing the present invention.

As devices equipped with screens, such as smart phones, are commonly used by people, devices equipped with various types of screens are being introduced in various fields. In particular, in educational institutions such as schools and academies, a method of writing using various types of writing devices on a large screen such as an electronic blackboard, away from the conventional method of writing directly on a blackboard or whiteboard with chalk, markers, etc. This situation is spreading.

In the case of a conventional electronic blackboard, since it includes a large screen unlike a small screen such as a smartphone, in manufacturing a large screen, due to cost and technical limitations, there is a gap between the LCD panel and the cover glass protecting the LCD panel. The intervals are separated by a predetermined distance.

In this way, in the case of an electronic blackboard in which the distance between the LCD panel and the cover glass is spaced, the production cost is low and the production method is not difficult, but the transmittance of the screen due to the distance is lowered, the viewing angle is relatively small, and the distance There is a problem in that dust is introduced into the space and the image quality is deteriorated or even the electronic board is broken.

Therefore, in an electronic board including a large screen, it is possible to minimize the distance between the LCD panel and the cover glass while reducing the production cost, and further minimize the use of chemicals such as adhesives used in attaching the LCD panel and the cover glass. It is necessary to develop a technology to solve the above problems in a certain way.

The present invention relates to an electronic board in which the distance between a panel and a cover glass is minimized by applying an eco-friendly method, and more particularly, the distance between a glass substrate (cover glass) constituting the screen of the electronic board and an LCD panel is reduced by using an eco-friendly method. It is an object of the present invention to provide an electronic blackboard in which unnecessary elements are minimized by minimizing elements for structurally fixing a glass substrate while improving transmittance and viewing angle of a screen by applying and minimizing the present invention.

In order to solve the above problems, in one embodiment of the present invention, as an electronic blackboard, a glass substrate; a plurality of glass substrate fixing members attached to a plurality of predetermined positions of a bottom edge of the glass substrate; A first adhesive tape attached in a horizontal direction from the upper side of the bottom surface of the glass substrate, a second adhesive tape attached to the bottom surface of the glass substrate in a lower vertical direction from one end of the first adhesive tape, the first adhesive tape A third adhesive tape attached to the bottom surface of the glass substrate in a lower vertical direction from the other end of, and a fourth adhesive tape attached to the bottom surface of the glass substrate in a horizontal direction from the lower side of the second adhesive tape and the third adhesive tape. an adhesive border portion including an adhesive tape and having an inner space formed by the first to fourth adhesive tapes; an LCD panel unit attached to the bottom surface of the glass substrate by the adhesive border unit; and a frame portion including a plurality of frame members and having an empty space formed therein according to fastening of the plurality of frame members, wherein a plurality of glass substrate fixing members attached to the glass substrate are inside the frame portion. The electronic blackboard is provided in which an LCD panel portion fastened to the bottom surface of the glass substrate by the glass substrate and the adhesive rim portion is disposed in the empty space of the frame portion.

In one embodiment of the present invention, the electronic blackboard may include a light emitting sensor unit; and a transmission filter unit that transmits only infrared light emitted from the light emitting sensor unit. Further comprising, the frame member includes a first accommodating space having a first end surface, a first fastening groove is formed at a predetermined position on one side of the first accommodating space, and a A second fastening groove is formed at a predetermined position on the other side of the first accommodating space, a third fastening groove is formed in an extended direction on one side of the first accommodating space, and the first fastening groove and the first fastening groove are formed. The light emitting sensor unit may be fastened to the first accommodating space by two fastening grooves, and the transmission filter unit may be fastened to the frame member by the third fastening groove.

In one embodiment of the present invention, the transmission filter part fastened by the third fastening groove comes into contact with the top surface of the glass substrate disposed in the empty space of the frame part, and the glass attached to the bottom surface of the glass substrate. The glass substrate may be supported in a direction opposite to that of the substrate fixing member.

In one embodiment of the present invention, the glass substrate fixing member is bent in an 'L' shape, one side of the glass substrate fixing member is attached to the bottom surface of the glass substrate, and the glass substrate fixing member The other side surface may be fastened to the sliding groove formed in the frame member.

In one embodiment of the present invention, in the electronic blackboard, an adhesive or optical resin is applied to the inner space of the adhesive rim attached to the bottom surface of the glass substrate, and the adhesive or optical resin is applied to the adhesive rim and the applied adhesive or optical resin. As a result, the LCD panel unit may be attached to the bottom surface of the glass substrate.

According to one embodiment of the present invention, since the adhesive border portion composed of a plurality of adhesive tapes is disposed between the glass substrate and the LCD panel unit to bond the glass substrate and the LCD panel unit, the gap between the glass substrate and the LCD panel unit is reduced. Since the interval is minimized, the effect of improving the transmittance and viewing angle of the screen of the electronic blackboard can be exhibited.

According to one embodiment of the present invention, the adhesive border portion composed of a plurality of adhesive tapes includes an inner area, and since no separate adhesive is applied to the inner area, a large amount of adhesive is applied to the glass substrate and the LCD panel. Since no adhesive is used, it is possible to efficiently bond the glass substrate and the LCD panel unit, and it is possible to exhibit an effect of preventing contamination due to abuse of the adhesive.

According to one embodiment of the present invention, since the upper surface of the glass substrate is supported by the transmission filter unit fastened to the frame member, the glass substrate can be supported without an additional member for supporting the glass substrate, thereby increasing the efficiency of the electronic blackboard. The effect of simplifying the structure can be exerted.

1 schematically shows an exploded perspective view of an electronic blackboard according to an embodiment of the present invention.
2 schematically shows a structure in which a glass substrate, an adhesive rim portion, and an LCD panel portion are laminated according to an embodiment of the present invention.
3 schematically shows a structure in which a glass substrate and an LCD panel are bonded by an adhesive rim according to an embodiment of the present invention.
Figure 4 schematically shows an adhesive border portion adhered to the bottom surface of the glass substrate according to an embodiment of the present invention.
5 schematically illustrates a cross-sectional view of an electronic board displaying a frame portion and a rear case portion according to an embodiment of the present invention.
6 schematically illustrates a cross-sectional view of an electronic blackboard displaying a glass substrate fixing member, a light emitting sensor unit, and a transmission filter unit according to an embodiment of the present invention.

In the following, various embodiments and/or aspects are disclosed with reference now to the drawings. In the following description, for purposes of explanation, numerous specific details are set forth in order to facilitate a general understanding of one or more aspects. However, it will also be appreciated by those skilled in the art that such aspect(s) may be practiced without these specific details. The following description and accompanying drawings describe in detail certain illustrative aspects of one or more aspects. However, these aspects are exemplary and some of the various methods in principle of the various aspects may be used, and the described descriptions are intended to include all such aspects and their equivalents.

Moreover, various aspects and features will be presented by a system that may include a number of devices, components and/or modules, and the like. It should also be noted that various systems may include additional devices, components and/or modules, and/or may not include all of the devices, components, modules, etc. discussed in connection with the figures. It must be understood and recognized.

"Example", "example", "aspect", "exemplary", etc., used herein should not be construed as preferring or advantageous to any aspect or design being described over other aspects or designs. . The terms '~unit', 'component', 'module', 'system', 'interface', etc. used below generally mean a computer-related entity, and for example, hardware, hardware It may mean a combination of and software, software.

Also, the terms "comprises" and/or "comprising" mean that the feature and/or element is present, but excludes the presence or addition of one or more other features, elements and/or groups thereof. It should be understood that it does not.

In addition, terms including ordinal numbers, such as first and second, may be used to describe various components, but the components are not limited by the terms. These terms are only used for the purpose of distinguishing one component from another. For example, a first element may be termed a second element, and similarly, a second element may be termed a first element, without departing from the scope of the present invention. The terms and/or include any combination of a plurality of related recited items or any of a plurality of related recited items.

In addition, in the embodiments of the present invention, unless otherwise defined, all terms used herein, including technical or scientific terms, are generally understood by those of ordinary skill in the art to which the present invention belongs. has the same meaning as Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related art, and unless explicitly defined in the embodiments of the present invention, an ideal or excessively formal meaning not be interpreted as

1 schematically shows an exploded perspective view of an electronic blackboard 10000 according to an embodiment of the present invention.

As shown in FIG. 1, as an electronic blackboard 10000, a glass substrate 2000; a plurality of glass substrate fixing members 2100 attached to a plurality of predetermined positions of the bottom edge of the glass substrate 2000; A first adhesive tape 3100 attached in a horizontal direction from the upper side of the bottom surface of the glass substrate 2000, and a lower vertical direction from one end of the first adhesive tape 3100 to the bottom surface of the glass substrate 2000 A second adhesive tape 3200 attached, a third adhesive tape 3300 attached to the bottom surface of the glass substrate 2000 in a downward vertical direction from the other end of the first adhesive tape 3100, and the second adhesive A tape 3200 and a fourth adhesive tape 3400 attached to the bottom surface of the glass substrate 2000 in a horizontal direction from the lower side of the third adhesive tape 3300, and the first to fourth adhesive tapes an adhesive rim portion 3000 in which an inner space 3500 is formed by 3400; an LCD panel unit 4000 attached to the bottom surface of the glass substrate 2000 by the adhesive border unit 3000; and a frame unit 1000 including a plurality of frame members 1100 to 1400 and having an empty space formed therein according to the fastening of the plurality of frame members 1100 to 1400. ) A plurality of glass substrate fixing members 2100 attached to the bottom surface of the glass substrate 2000 are fastened to the inside of the frame portion 1000 by the glass substrate 2000 and the adhesive rim portion 3000 The LCD panel unit 4000 attached to may be disposed in the empty space of the frame unit 1000.

Specifically, the electronic blackboard 10000 of the present invention has a plurality of components that drive the electronic blackboard 10000 and display information in an internal space formed by fastening the frame part 1000 and the rear case part 5000. may be accepted. More specifically, in a conventional electronic blackboard, a glass substrate and an LCD panel corresponding to components for displaying information are accommodated in an internal space, and at this time, the glass substrate and the LCD panel are spaced apart by a predetermined distance.

On the other hand, in the electronic blackboard 10000 of the present invention, the glass substrate 2000 and the LCD panel unit 4000 are accommodated in the internal space, and at this time, the glass substrate 2000 and the LCD panel unit 4000 are spaced apart by a predetermined distance. Instead, the glass substrate 2000 and the LCD panel unit 4000 have a minimum distance. Preferably, an adhesive border portion 3000 is disposed between the glass substrate 2000 and the LCD panel portion 4000, and the glass substrate 2000 and the LCD panel portion ( 4000) is attached, so it has the minimum distance.

In addition, in the present invention, in accommodating the bonded glass substrate 2000 and the LCD panel unit 4000 in the internal space of the electronic board 10000, the bonded glass substrate 2000 and the LCD panel unit 4000 are placed inside. A technical feature may be that components for supporting in space are included in the frame unit 1000 .

Specifically, in the electronic blackboard 10000 of the present invention, the frame portion 1000 may be formed by assembling a plurality of frame members 1100 to 1400 in a frame shape. The attached glass substrate 2000 and the LCD panel unit 4000 are exposed in the empty space of the frame unit 1000 in the form of a picture frame, and a screen displayed on the LCD panel unit 4000 can be displayed. Preferably, the plurality of frame members correspond to the first frame member 1100, the second frame member 1200, the third frame member 1300, and the fourth frame member 1400, and the first frame member ( 1100) is disposed extending in the transverse direction on the upper side, and the second frame member 1200 extends in the longitudinal direction at one end side of the first frame member 1100 disposed transversely extending on the upper side, and is disposed , The third frame member 1300 is disposed to extend in the longitudinal direction at the other end side of the first frame member 1100 extending in the transverse direction on the upper side, and the fourth frame member 1400 is disposed on the upper side. The second frame member 1200 and the third frame member 1300 extending in the longitudinal direction at one end and the other end of the first frame member 1100 may be disposed to extend in the transverse direction below the second frame member 1200 and the third frame member 1300.

In addition, among the plurality of frame members 1100 to 1400 constituting the frame unit 1000, the cross section of one or more frame members has an internal space with one side opened, such as a 'c' shape, and the In the inner space, a component for sensing information input by a user using a finger or a separate writing device on the glass substrate 2000 and a component for supporting the adhered glass substrate 2000 and the LCD panel unit 4000 components may be included.

Meanwhile, the electronic blackboard 10000 includes a glass substrate 2000, an adhesive border portion 3000, and an LCD panel portion 4000, and the glass substrate 2000 and the LCD panel portion 4000 are bonded to each other. They may be adhered to each other by the edge portion 3000 . The glass substrate 2000 and the LCD panel unit 4000 may be the same as those commonly used in electronic blackboards 10000 or screen-mounted devices, and the LCD panel unit 4000 corresponds to an LCD open cell. can do.

The adhesive edge portion 3000 is for attaching the glass substrate 2000 and the LCD panel portion 4000, and may correspond to a kind of adhesive for physically bonding the glass substrate 2000 and the LCD panel portion 4000. It may correspond to an optical resin in another embodiment of the present invention. In addition, since the size of the adhesive rim portion 3000 is the same as that of the LCD panel portion 4000, one surface of the adhesive rim portion 3000 may be attached to an edge of the LCD panel portion 4000. The size of the glass substrate 2000 is larger than the size of the adhesive rim 3000, and accordingly, the other side of the adhesive rim 3000 is attached to the inside of the glass substrate 2000, not to the edge, and the glass substrate ( 2000), a plurality of glass substrate fixing members 2100 corresponding to components for supporting the glass substrate 2000 to which the LCD panel unit 4000 is bonded to the frame unit 1000 may be attached. On the other hand, the glass substrate fixing member 2100 is fastened to the inner space of the frame members 1100 to 1400 constituting the frame portion 1000 to fix the glass substrate 2000 to which the LCD panel portion 4000 is attached. make it possible

The rear case part 5000 is fastened to the rear surface of the frame part 1000 to form an inner accommodating space, and the glass substrate 2000 attached by the adhesive rim part 3000 and the LCD panel part form the inner accommodating space. 4000 is accommodated, and a control unit 6000 for controlling the electronic blackboard 10000 can be additionally accommodated.

As described above, the electronic board 10000 of the present invention includes the frame part 1000, the glass substrate 2000, the adhesive border part 3000, the LCD panel part 4000, the control part 6000, and the rear case part 5000. It can be configured by being sequentially combined.

FIG. 2 schematically shows a structure in which a glass substrate 2000, an adhesive rim portion 3000, and an LCD panel portion 4000 are laminated according to an embodiment of the present invention.

As shown in FIG. 2, the LCD panel unit 4000 is bonded to the bottom surface of the glass substrate 2000 by the adhesive border unit 3000, and additionally, the edge of the bottom surface of the glass substrate 2000, preferably More specifically, a glass substrate fixing member 2100 may be attached to each corner of the bottom surface of the glass substrate 2000 .

As described above in FIG. 1 , the size of the glass substrate 2000 is larger than that of the adhesive edge portion 3000 and the LCD panel portion 4000 . Therefore, the LCD panel unit 4000 to which one surface of the adhesive border unit 3000 is bonded can be attached to the inside of the bottom surface of the glass substrate 2000, and the remaining glass substrate after the LCD panel unit 4000 is attached. A plurality of glass substrate fixing members 2100 may be attached to the area of the bottom surface of (2000). Preferably, the plurality of glass substrate fixing members 2100 may be attached to four corners of the bottom surface of the glass substrate 2000 .

On the other hand, the glass substrate fixing member 2100 is bent in an 'L' shape, and the width of the glass substrate fixing member 2100 may be constant, but is preferably attached to the glass substrate 2000. The width is wider than that of the portion that is not attached to the glass substrate 2000, and as the area attached to the glass substrate 2000 increases, the adhesive strength can be increased, and one end of the portion that is not attached to the glass substrate 2000 is It is formed in an oblique shape so that the glass substrate fixing member 2100 can be easily fastened to the inner space formed in the frame part 1000 .

In addition, one end of the portion attached to the glass substrate 2000 in the glass substrate fixing member 2100 is formed flat, and an adhesive, adhesive sheet, etc. is applied to one end side so that the glass substrate fixing member 2100 is attached to the glass substrate 2100. (2000) can be easily attached to the bottom surface.

FIG. 3 schematically shows a structure in which a glass substrate 2000 and an LCD panel unit 4000 are bonded by an adhesive border unit 3000 according to an embodiment of the present invention.

3(A) schematically shows the structure of a glass substrate 2000 and an LCD panel unit 4000 in a conventional electronic blackboard. In the conventional electronic blackboard, as shown in FIG. 3 (A), a glass substrate 2000 and an LCD panel unit 4000 are produced in order to produce an electronic blackboard at a low cost as the screen becomes larger and to be easily produced without additional equipment. ), but spaced apart by a predetermined distance.

On the other hand, as described above, in the structure of the conventional electronic blackboard, it is possible to easily produce the electronic blackboard at a low price, but there are disadvantages in that transmittance and viewing angle are not good depending on the separation distance, and foreign substances such as dust are easily introduced into the additionally spaced space. Since it may flow in, there is a problem in that image quality is deteriorated accordingly.

In addition, in the structure of the conventional electronic board, when the user inputs a specific point (P1) with a writing device on the glass substrate 2000, the user's intended point (P2) and the electronic board recognized point (P3) This makes a huge difference to the problem.

Specifically, a user using an electronic board usually stands on the side of the electronic board, stares at the screen from the side, and performs an operation of writing or selecting elements displayed on the screen.

At this time, since the glass substrate 2000 and the LCD panel unit 4000 are separated by a predetermined distance in the conventional electronic board, the position displayed on the LCD panel unit 4000 and the position displayed through the glass substrate 2000 are may differ from each other.

Taking (A) of FIG. 3 as an example, when some information is displayed at a point P2 in the LCD panel unit 4000 and the user looks at the glass substrate 2000 from a position lower than the point P2 of the LCD panel unit 4000. For example, the distance between the glass substrate 2000 and the LCD panel unit 4000 allows the user to recognize that the corresponding information is displayed at the point P1 on the glass substrate 2000 .

Therefore, when the user selects point P1 on the glass substrate 2000 to select corresponding information through the writing device, the electronic board 10000 actually indicates that the information selected by the writing device is not the information displayed at point P2, It is recognized as the information displayed at the point P3 extending from the point P1 to the LCD panel unit 4000 horizontally.

That is, in the structure of the conventional electronic board, an error may occur between information displayed on the LCD panel unit 4000 and information projected through the glass substrate 2000 depending on the location of the user, and this error may occur when the user uses the writing device. There is a problem in that the recognition rate may be lowered in selecting specific information through the process.

However, as shown in (B) of FIG. 3, the structure of the electronic blackboard 10000 according to an embodiment of the present invention, that is, the glass substrate 2000 and the LCD panel unit 4000, the adhesive border unit 3000 ) Since the separation distance between the glass substrate 2000 and the LCD panel unit 4000 is minimized differently from that shown in FIG. 3 (A), the information displayed on the LCD panel unit 4000 Even when is projected onto the glass substrate 2000, an error does not occur significantly, so an effect of improving the recognition rate for information selected through the writing device can be exhibited.

In addition, the thickness of the adhesive edge portion 3000 of the present invention shown in FIG. 3 (B) may correspond to 0.7 to 0.9 mm, preferably 0.8 mm.

4 schematically illustrates an adhesive rim portion 3000 adhered to the bottom surface of a glass substrate 2000 according to an embodiment of the present invention.

The drawing shown in (A) of FIG. 4 schematically shows an adhesive rim 3000 adhered to the bottom surface of a glass substrate 2000 according to an embodiment of the present invention.

The adhesive edge portion 3000 includes a first adhesive tape 3100, a second adhesive tape 3200, a third adhesive tape 3300, and a fourth adhesive tape 3400, and the first adhesive tape 3100 ) to the fourth adhesive tape 3400 may be formed in the form of a picture frame, thereby forming the adhesive border portion 3000.

Specifically, the first adhesive tape 3100 extends horizontally on the upper side, and the second adhesive tape 3200 extends on the upper side in the horizontal direction. One end of the first adhesive tape 3100 The third adhesive tape 3300 extends in the longitudinal direction at the other end side of the first adhesive tape 3100 extending in the transverse direction on the upper side, and the third adhesive tape 3300 extends in the longitudinal direction on the upper side. 4 The adhesive tape 3400 extends in the longitudinal direction at one end side and the other end side of the first adhesive tape 3100 and is disposed on the lower side of the second adhesive tape 3200 and the third adhesive tape 3300. It may be disposed extending in the direction.

The adhesive rim portion 3000 composed of the first adhesive tape 3100 to the fourth adhesive tape 3400 is coated with a material having adhesive force on both the top and bottom surfaces, and thus, the adhesive rim portion 3000 One surface is adhered to the bottom surface of the glass substrate 2000, and although not shown in FIG. 2000 and the LCD panel unit 4000 can be attached to each other.

In this way, in order to bond the glass substrate 2000 and the LCD panel unit 4000 to each other in the electronic blackboard 10000 in the present invention, the entire area where the glass substrate 2000 and the LCD panel unit 4000 are in contact is A substance having adhesive power such as an adhesive or adhesive sheet is not applied, but, as in the present invention, an adhesive edge portion 3000 attached along the edge of the glass substrate 2000 and the LCD panel portion 4000 is used. By doing this, it is possible to save adhesive tape, and by using a minimum amount of adhesive tape, it is possible to minimize the use of chemicals used in the process of attaching the adhesive tape to the glass substrate 2000 and the LCD panel unit 4000. It is possible to exert an effect capable of reducing environmental pollution.

On the other hand, as shown in (B) of FIG. 4, the electronic blackboard 10000 according to another embodiment of the present invention has the inside of the adhesive border part 3000 attached to the bottom surface of the glass substrate 2000. An adhesive or optical resin is applied to the space 3500, and the LCD panel unit 4000 is attached to the bottom surface of the glass substrate 2000 by the adhesive rim 3000 and the applied adhesive or optical resin. It can be.

Specifically, (B) of FIG. 4 schematically shows that an adhesive or optical resin is applied to the inner space 3500 of the adhesive rim 3000 attached to the glass substrate 2000 according to another embodiment of the present invention. show

As shown in (B) of FIG. 4, in another embodiment of the present invention, the thickness of the glass substrate 2000 is thick or the specifications of the LCD panel unit 4000 cause the glass substrate 2000 and the LCD panel. In order to improve the adhesive strength with the unit 4000, a material having adhesive strength, such as an adhesive or an adhesive sheet, may be applied to the inner space of the adhesive tape unit. Preferably, an optical resin having optical properties may be applied to the inner space 3500 of the adhesive rim portion 3000 in consideration of light emission controlled by the LCD panel portion 4000.

On the other hand, as shown in (B) of FIG. 4, in applying a material having adhesive force, including an adhesive tape, to the entire area where the glass substrate 2000 and the LCD panel unit 4000 are in contact, preferentially the glass substrate (2000) or attaching the first adhesive tape 3100 to the fourth adhesive tape 3400 to the LCD panel unit 4000 to form the adhesive rim 3000, and then the inside of the adhesive rim 3000 It is preferable to apply a substance having adhesive power such as adhesive tape, adhesive, or optical resin to the space 3500 .

Through this sequence, the adhesive rim portion 3000 serves as a kind of dam to prevent the adhesive material applied to the inner space from escaping the area to be applied, thereby reducing the inner space of the adhesive rim portion 3000 ( 3500), it is possible to prevent excessive use of the adhesive material by serving as a kind of guide so that the adhesive material is applied only to the inner space 3500 as well as preventing the application of the adhesive material to the outside.

5 and 6 schematically show cross-sectional views of an electronic board 10000 displaying a frame portion 1000 and a rear case portion 5000 according to an embodiment of the present invention.

As shown in FIG. 5, the electronic board 10000 includes a light emitting sensor unit 7000; and a transmission filter unit 7100 that transmits only infrared light emitted from the light emitting sensor unit 7000; Further, the frame member (1100 to 1400) includes a first accommodating space (1110) having a first end surface, and a first fastening groove (1500) at a predetermined position on one side of the first accommodating space (1110). ) is formed, and a second fastening groove 1600 is formed at a predetermined position on the other side of the first accommodating space 1110 corresponding to the first fastening groove 1500, and the first accommodating space ( 1110), a third fastening groove 1700 is formed in an extended direction on one side, and the first fastening groove 1500 and the second fastening groove 1600 are formed in the first accommodation space 1110. The light emitting sensor unit 7000 may be fastened, and the transmission filter unit 7100 may be fastened to the frame members 1100 to 1400 by the third fastening groove 1700 .

Specifically, the plurality of frame members 1100 to 1400 constituting the frame unit 1000 include a first accommodating space 1110 having a first end surface therein. The first accommodating space 1110 is a space in which a part is opened, and a part of any one surface of the frame members 1100 to 1400 is open, and any one surface adjacent to the one surface is extended. has been formed That is, the side surface contacting the open portion of the first accommodating space 1110 may be formed to be extended. Meanwhile, the first accommodating space 1110 shown in FIGS. 5 and 6 corresponds to the accommodating space formed inside the first frame member 1100 .

Meanwhile, in the first accommodating space 1110 included in the frame members 1100 to 1400, structures for fastening a plurality of components of the electronic blackboard 10000 are formed. Specifically, a first fastening groove 1500 is formed at a predetermined position on one side of the first accommodating space 1110, and a predetermined position on the other side facing one side of the first accommodating space 1110, preferably Preferably, the second fastening groove 1600 is formed at a position facing a predetermined position formed on one side of the first accommodating space 1110.

As such, the first fastening groove 1500 and the second fastening groove 1600 formed in the first accommodating space 1110, as shown in FIG. ) corresponds to the structure to be mounted on. That is, the protrusions formed on both sides of the light emitting sensor unit 7000 are fastened to the first fastening groove 1500 and the second fastening groove 1600, respectively, so that the light emitting sensor unit 7000 is in the first accommodating space ( 1110) can be mounted.

The light emitting sensor unit 7000 emits infrared rays, and the lens unit included in the light emitting sensor unit 7000 (the convex part of the light emitting sensor unit 7000 shown in FIG. 5) is the first accommodating space 1110 It is located in the opening part, and accordingly, the infrared rays generated by the light emitting sensor unit 7000 can be irradiated in one direction through the lens unit. 5 and 6 as an example, the light emitting sensor unit 7000 fastened to the first accommodating space 1110 of the first frame member 1100 emits infrared rays in a downward direction (towards the fourth frame member 1400). At this time, a light receiving sensor unit (not shown) is fastened to the inner space of the fourth frame member 1400, and a light receiving sensor unit (not shown) fastened to the fourth frame member 1400 is irradiated with the infrared rays. detect

In this way, when the light receiving sensor unit (not shown) detects the infrared rays emitted from the light emitting sensor unit 7000, the movement of the writing device on the glass substrate 2000 can be recognized.

In addition, one side of the frame members 1100 to 1400 where the first fastening groove 1500 is formed follows the direction in which infrared rays are irradiated from the light emitting sensor unit 7000 fastened to the first accommodating space 1110. It is extended, and the lower end of the lens unit of the light emitting sensor unit 7000 fastened by the first fastening groove 1500 and the second fastening groove 1600 on one side formed by the extension, preferably on the one side formed by the extension. A third fastening groove 1700 may be formed at a predetermined location.

Meanwhile, a transmission filter unit 7100 passing only infrared rays emitted from the light emitting sensor unit 7000 is fastened to the third fastening groove 1700 . Accordingly, a shape corresponding to the shape of the third fastening groove 1700 may be formed on one side of the transmission filter unit 7100 .

In addition, the transmission filter part 7100 fastened by the third fastening groove 1700 is in contact with the top surface of the glass substrate 2000 disposed in the empty space of the frame part 1000, and the glass The glass substrate 2000 may be supported in the opposite direction to the glass substrate fixing member 2100 attached to the bottom surface of the substrate 2000 .

Specifically, as described above, the transmission filter unit 7100 not only serves as a filter that passes only the infrared rays irradiated from the light emitting sensor unit 7000, but also the frame unit 1000 and the rear case. It may additionally play a role of fixing the glass substrate 2000 in an internal space formed as the part 5000 is fastened.

More specifically, as shown in FIG. 6, one side of the transmission filter unit 7100 is fastened to the third fastening groove 1700, and the other side of the transmission filter unit 7100 is connected to the glass substrate 2000. It can be in close contact with the upper surface of. In this way, the transmission filter unit 7100 closely attached to the upper surface of the glass substrate 2000 supports the glass substrate 2000, thereby performing an additional role of preventing the glass substrate 2000 from leaning forward.

Therefore, in the present invention, by using the transmission filter unit 7100 as an element supporting the glass substrate 2000, the glass substrate 2000 can be fixed without using a separate element supporting the glass substrate 2000. , the structure of the electronic blackboard 10000 can be simplified.

The glass substrate fixing member 2100 is bent in an 'L' shape, one side of the glass substrate fixing member 2100 is attached to the bottom surface of the glass substrate 2000, and the glass substrate fixing member The other side surface of 2100 may be fastened to the sliding groove 1800 formed in the frame members 1100 to 1400.

Specifically, the frame members 1100 to 1400 include a second accommodating space 1120, the lower end of one side of the second accommodating space 1120 is open, preferably the rear case portion 5000 and The lower end of the adjacent side surface is open. In this way, the rear case portion 5000 may be fastened to the opened second accommodating space 1120 to form a housing.

In addition, a sliding groove 1800 may be formed in an internal space formed by fastening the frame unit 1000 and the rear case unit 5000 described above. Here, the sliding groove 1800 is fastened to the glass substrate fixing member 2100 attached to the glass substrate 2000 to support the glass substrate 2000 so that it does not move back and forth together with the transmission filter unit 7100 described above. role can be fulfilled.

As shown in FIG. 6, the glass substrate fixing member 2100 is bent in an 'L' shape, and one side of the glass substrate fixing member 2100 is attached to the bottom surface of the glass substrate 2000. And, the other side surface of the glass substrate fixing member 2100 can be fastened to the sliding groove 1800. That is, as the glass substrate fixing member 2100 is fastened to the sliding groove 1800, the glass substrate 2000 is prevented from being pushed backward, and as described above, it comes into contact with the upper surface of the glass substrate 2000. The glass substrate 2000 is prevented from leaning forward by the transmission filter unit 7100 thereon, so that the glass substrate 2000 to which the LCD panel unit 4000 is attached can be supported.

On the other hand, it has been described that the light emitting sensor unit 7000 is fastened to the first accommodating space 1110 formed in the frame members 1100 to 1400, but preferably, the light emitting sensor unit 7000 is a light emitting sensor substrate (not shown). ), and a plurality of light emitting sensor units 7000 may be electrically connected to the light emitting sensor substrate. As such, the light emitting sensor substrate including the plurality of light emitting sensor units 7000 is connected to the first fastening groove 1500 and the second fastening groove 1600 of the first accommodating space 1110 of the frame members 1100 to 1400. It can be fastened in a sliding manner along.

Through this configuration, the electronic board 10000 of the present invention is a light emitting sensor fastened along the first fastening groove 1500 and the second fastening groove 1600 when a failure occurs in the light emitting sensor unit 7000. By detaching the substrate, an effect of easily replacing the light emitting sensor unit 7000 can be exhibited.

According to an embodiment of the present invention, an adhesive border portion 3000 composed of a plurality of adhesive tapes is disposed between the glass substrate 2000 and the LCD panel portion 4000, so that the glass substrate 2000 and the LCD panel portion Since (4000) is bonded, the distance between the glass substrate 2000 and the LCD panel unit 4000 is minimized, so that the transparency of the screen of the electronic board 10000 and the viewing angle can be improved.

According to one embodiment of the present invention, the adhesive edge portion 3000 composed of a plurality of adhesive tapes includes an inner area 3500, and since no separate adhesive is applied to the inner area 3500, the glass substrate Since a large amount of adhesive is not used to bond the (2000) and the LCD panel unit (4000), the glass substrate (2000) and the LCD panel unit (4000) can be bonded efficiently, and contamination due to abuse of the adhesive can be prevented. effect can be exerted.

According to one embodiment of the present invention, since the top surface of the glass substrate 2000 is supported by the transmission filter unit 7100 fastened to the frame members 1100 to 1400, an additional layer for supporting the glass substrate 2000 is provided. Since the glass substrate 2000 can be supported without a member, the structure of the electronic board 10000 can be simplified.

As described above, although the embodiments have been described with limited examples and drawings, those skilled in the art can make various modifications and variations from the above description. For example, the described techniques may be performed in an order different from the method described, and/or components of the described system, structure, device, circuit, etc. may be combined or combined in a different form than the method described, or other components may be used. Or even if it is replaced or substituted by equivalents, appropriate results can be achieved. Therefore, other implementations, other embodiments, and equivalents of the claims are within the scope of the following claims.

Claims (5)

As an electronic blackboard,
glass substrate;
a plurality of glass substrate fixing members attached to a plurality of predetermined positions of a bottom edge of the glass substrate;
A first adhesive tape attached in a horizontal direction from the upper side of the bottom surface of the glass substrate, a second adhesive tape attached to the bottom surface of the glass substrate in a lower vertical direction from one end of the first adhesive tape, the first adhesive tape A third adhesive tape attached to the bottom surface of the glass substrate in a lower vertical direction from the other end of, and a fourth adhesive tape attached to the bottom surface of the glass substrate in a horizontal direction from the lower side of the second adhesive tape and the third adhesive tape. an adhesive border portion including an adhesive tape and having an inner space formed by the first to fourth adhesive tapes;
an LCD panel unit attached to the bottom surface of the glass substrate by the adhesive border unit; and
A frame portion including a plurality of frame members and having an empty space formed therein according to the fastening of the plurality of frame members;
A plurality of glass substrate fixing members attached to the glass substrate are fastened to the inside of the frame portion, and an LCD panel portion attached to the bottom surface of the glass substrate by the glass substrate and the adhesive rim portion is disposed in the empty space of the frame portion. ,
The electronic blackboard,
light emitting sensor unit; and a transmission filter unit that transmits only infrared light emitted from the light emitting sensor unit. contain more,
The frame member includes a first accommodating space having a first cross section,
A first fastening groove is formed at a predetermined position on one side of the first accommodating space, and a second fastening groove is formed at a predetermined position on the other side of the first accommodating space corresponding to the first fastening groove, A third fastening groove is formed in an extended direction of one side of the first accommodating space,
The light emitting sensor part is fastened to the first accommodating space by the first fastening groove and the second fastening groove, and the transmission filter part is fastened to the frame member by the third fastening groove,
One side of the permeation filter unit is fastened to the third fastening groove, and the other side of the permeation filter unit is in close contact with the upper surface of the glass substrate;
The permeation filter unit fastened by the third fastening groove,
It is in contact with the top surface of the glass substrate disposed in the empty space of the frame part and supports the glass substrate in the opposite direction to the glass substrate fixing member attached to the bottom surface of the glass substrate, preventing the glass substrate from leaning forward prevent,
The electronic blackboard can be simplified in structure by using the transmission filter part as an element supporting the glass substrate, so that the glass substrate can be fixed without using a separate glass substrate supporting element.
delete delete The method of claim 1,
The glass substrate fixing member is bent in an 'L' shape,
One side of the glass substrate fixing member is attached to the bottom surface of the glass substrate, and the other side of the glass substrate fixing member is fastened to the sliding groove formed in the frame member.
The method of claim 1,
The electronic blackboard,
An adhesive or optical resin is applied to the inner space of the adhesive rim attached to the bottom surface of the glass substrate, and the LCD panel is attached to the bottom surface of the glass substrate by the adhesive rim and the applied adhesive or optical resin. An electronic blackboard.

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