CN213844102U - Electronic whiteboard with variable length-width ratio - Google Patents
Electronic whiteboard with variable length-width ratio Download PDFInfo
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- CN213844102U CN213844102U CN202120042084.0U CN202120042084U CN213844102U CN 213844102 U CN213844102 U CN 213844102U CN 202120042084 U CN202120042084 U CN 202120042084U CN 213844102 U CN213844102 U CN 213844102U
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- shortcut key
- frame
- electronic whiteboard
- aspect ratio
- width ratio
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Abstract
The utility model provides an electronic whiteboard with a variable length-width ratio, which comprises a rectangular frame and a touch writing area arranged in the middle of the frame; the shortcut key bar is movably arranged on the inner side of the frame; and the projector changes the length-width ratio of the projection area according to the setting mode of the shortcut key bar so as to be matched with the touch writing area. The utility model discloses in, because the activity of swift keybar sets up at the frame inboardly, consequently, can confirm the touch through the mode that sets up of swift keybar cooperation software program and write regional aspect ratio.
Description
Technical Field
The utility model relates to an electronic whiteboard field, especially an electronic whiteboard of convertible length-width ratio.
Background
The electronic whiteboard can be in information communication with the PC end, the electronic whiteboard is connected to the PC end, and the projector is used for projecting the content of the PC end to the whiteboard touch screen.
The general structure of the current electronic whiteboard is as follows: the periphery is a frame, the middle is a writing area, and the projector projects the content of the PC end to the writing area. In writing regional thickness direction, the centre is a higher flat board of intensity, like iron plate or steel sheet, as the skeleton, at the convenient coating of writing of front application one deck, the back also can be scribbled the one deck and protect paint, sets up infrared emission lamp and infrared receiving lamp on the frame on relative both sides respectively, forms infrared touch screen.
Currently, the aspect ratio of an electronic whiteboard is generally 4: 3,16:10 or 16: 9, projector projection surface 4: 3,16:10 or 16: 9 aspect ratio of the projected image. The length-width ratio of the projection area, namely the touch writing area can be determined by the shortcut key bar in combination with the setting mode of the software program. The projector can flexibly project images with different length-width ratios, but the electronic white board cannot change the length-width ratio and cannot meet the requirement of a user on the change of the length-width ratio of the electronic white board.
SUMMERY OF THE UTILITY MODEL
The utility model discloses can adopt different aspect ratio projection images to the projector in a flexible way, nevertheless whiteboard itself can not transform aspect ratio, can not satisfy the requirement that the user changes to electronic whiteboard itself aspect ratio. An electronic whiteboard with a variable aspect ratio is provided.
The utility model discloses realize that its technical purpose technical scheme is: an electronic whiteboard with a changeable length-width ratio comprises a rectangular frame and a touch writing area arranged in the middle of the frame; the shortcut key bar is movably arranged on the inner side of the frame; and the projector changes the length-width ratio of the projection area according to the setting mode of the shortcut key bar so as to be matched with the touch writing area.
Further, in the electronic whiteboard with variable aspect ratio, the electronic whiteboard comprises: the shortcut key strips comprise two shortcut key strips arranged on the inner sides of the left frame and the right frame.
Further, in the electronic whiteboard with variable aspect ratio, the electronic whiteboard comprises: the shortcut key strips comprise two shortcut key strips arranged on the inner sides of the upper frame and the lower frame.
Further, in the electronic whiteboard with variable aspect ratio, the electronic whiteboard comprises: the quick key bar is internally provided with a magnet, and the quick key bar is attracted to the inner side of the frame by utilizing the magnetic force of the magnet.
The utility model discloses in, because the activity of swift keybar sets up at the frame inboardly, consequently, can confirm the touch through the mode that sets up of swift keybar cooperation software program and write regional aspect ratio.
The present invention will be described in more detail with reference to the accompanying drawings and examples.
Drawings
Fig. 1 is the structure diagram of the electronic whiteboard of embodiment 1 of the present invention (the inner sides of the left and right sides of the frame are provided with shortcut key bars).
FIG. 2 is a cross-sectional view of FIG. 1A-A.
Fig. 3 is the structure diagram of the electronic whiteboard of embodiment 1 of the present invention (the upper and lower inner sides of the frame are provided with shortcut key bars).
Fig. 4 is a structural diagram of an electronic whiteboard according to embodiment 1 of the present invention (without shortcut key bars).
Detailed Description
The embodiment is an electronic whiteboard with a changeable length-width ratio, which comprises a rectangular frame 100 and a touch writing area 200 arranged in the middle of the frame 100, wherein the projection area of a projector is the touch writing area 200; in this embodiment, the shortcut keys 301 are uniformly distributed on two shortcut key bars 300, and are respectively distributed inside the left and right frames 100 by using the attractive force of the magnets as shown in fig. 1, in this embodiment, magnets are arranged in the shortcut key bars 300, the shortcut key bars 300 are attracted inside the frames 100 by using the magnetic force of the magnets, as shown in fig. 2, the electronic whiteboard of this embodiment has a structural schematic diagram in the thickness direction, the middle is a framework layer 202 composed of iron sheets (plates) or steel sheets (plates), the front side is a layer of coating 201 convenient for writing, the back side can also be coated with a layer of protective paint 203, and when the shortcut key bars 300 with the magnets therein are attached inside the frames 100, the shortcut key bars can be rapidly attached due to the magnetic force and can be conveniently taken down. In this embodiment, the portion shielded by the shortcut key bar 300 is no longer a part of the touch writing area, and therefore, when one shortcut key bar 300 is disposed inside each of the left and right frames 100, the width of the entire touch writing area 200 is narrowed, while the length is unchanged, and the aspect ratio of the touch writing area 200 is 9: 16, when one shortcut key bar 300 is provided on each of the inner sides of the left and right frames 100, the aspect ratio of the touch writing area 200 is 10: 16, at this point, triggering on the projector according to 10: 16, when the shortcut key bar 300 in the left and right frames 100 is removed, as shown in fig. 4, the trigger button on the projector is as follows 9: aspect ratio projection image of 16, if only one such shortcut key bar 300 is provided on the left or right, the aspect ratio of the touch writing area 200 may be 19: 32. in this embodiment, two shortcut key bars 300 may also be adhered to the inner sides of the upper and lower frames 200, as shown in fig. 3, so that the height is reduced, and the aspect ratio is changed, and similarly, if only one shortcut key bar 300 is arranged on the inner side of the lower frame, another aspect ratio is obtained, and according to the requirement, the projector may set different aspect ratios to adapt to the aspect ratio of the touch writing area in the electronic whiteboard.
Claims (4)
1. An electronic whiteboard with a changeable length-width ratio comprises a rectangular frame (100) and a touch writing area (200) arranged in the middle of the frame (100); the method is characterized in that: the frame is characterized by further comprising shortcut key bars (300) uniformly distributed with shortcut keys (301), wherein the shortcut key bars (300) are movably arranged on the inner side of the frame (100); the projector changes the length-width ratio of the projection area according to the setting mode of the shortcut key bar (300) to be matched with the touch writing area (200).
2. An electronic whiteboard with convertible aspect ratio as defined in claim 1, wherein: the shortcut key strips (300) comprise two shortcut key strips arranged on the inner sides of the left frame and the right frame.
3. An electronic whiteboard with convertible aspect ratio as defined in claim 1, wherein: the shortcut key bar (300) comprises two shortcut key bars arranged on the inner sides of the upper and lower frames.
4. A variable aspect ratio electronic whiteboard according to claim 1, 2 or 3, wherein: magnets are arranged in the shortcut key strips (300), and the shortcut key strips (300) are attracted to the inner side of the frame (100) by the magnetic force of the magnets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120042084.0U CN213844102U (en) | 2021-01-08 | 2021-01-08 | Electronic whiteboard with variable length-width ratio |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120042084.0U CN213844102U (en) | 2021-01-08 | 2021-01-08 | Electronic whiteboard with variable length-width ratio |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213844102U true CN213844102U (en) | 2021-07-30 |
Family
ID=77001587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120042084.0U Active CN213844102U (en) | 2021-01-08 | 2021-01-08 | Electronic whiteboard with variable length-width ratio |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213844102U (en) |
-
2021
- 2021-01-08 CN CN202120042084.0U patent/CN213844102U/en active Active
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