WO2014131221A1

WO2014131221A1 - Projection-type touch control electronic whiteboard and frame structure thereof

Info

Publication number: WO2014131221A1
Application number: PCT/CN2013/073781
Authority: WO
Inventors: 陈伟山; 闫广林; 谷鸿林; 栗勇; 邓华芹; 冯广伦
Original assignee: 深圳市天时通科技有限公司
Priority date: 2013-03-01
Filing date: 2013-04-07
Publication date: 2014-09-04
Also published as: CN103123556A

Abstract

Disclosed is a frame structure of a projection-type touch control electronic whiteboard to be arranged on the edge of an electronic whiteboard screen, comprising a frame, a light source assembly arranged inside the frame, and an optical filter arranged on the side opening of the frame; the side opening of the frame extends along the edge of the electronic whiteboard; a sensor of the light source assembly is vertically arranged on the circuit board of the light source assembly; the circuit board extends along the edge of the electronic whiteboard; and the vertically arranged sensor provides touch control positioning through the filter. Also disclosed is an electronic whiteboard with the frame structure. The electronic whiteboard and the frame structure thereof enable the electronic whiteboard to have a narrow frame, and are easy to install and maintain, thus facilitating the designing of a light and thin electronic whiteboard having a more attractive appearance.

Description

Projection touch electronic whiteboard and its frame structure

[Technical Field]

The present invention relates to the field of electronic whiteboard technology, and in particular to a frame structure of a projection type touch electronic whiteboard and a projection type touch electronic whiteboard.

【Background technique】

In the field of electronic whiteboard technology, especially in a large electronic whiteboard using projection display (refer to FIG. 1), infrared sensing technology is often used to provide touch positioning for the electronic whiteboard. Infrared sensors are generally placed in the border of the electronic whiteboard. As shown in FIG. 2, it is a transverse cross-sectional view of a conventional electronic whiteboard. The electronic whiteboard includes a substrate 1, a frame 2 disposed at four edges of the substrate 1, a sensor assembly 3 disposed in the frame 2, and a filter 4 disposed at an opening at a side of the frame 2. The sensor component 3 emits a signal and is filtered by the filter 4 to receive the sensor on the other side of the touch area. Referring to Figures 3a and 3b, the sensor assembly 3 includes a circuit board 31, a sensor 32 interposed on the circuit board 31, and a circuit chip 33 that drives the sensor 32. In a conventional electronic whiteboard, the pins of the sensor 32 in the sensor assembly 3 are perpendicular to the main body of the sensor, that is, the main portion of the sensor 32 is placed on the circuit board 31, so that the entire circuit board 31 needs to be Placed on the edge of the substrate 1 in parallel with the substrate 1, so that the frame of the entire electronic whiteboard is too wide to form a narrow bezel design.

[Summary of the Invention]

Based on this, it is necessary to provide a frame structure of a projection type electronic whiteboard for a narrow bezel.

In addition, a projection type electronic whiteboard is also provided.

A frame structure of a projection type electronic whiteboard, configured to be disposed at an edge of a display area of the electronic whiteboard, comprising a frame, a sensor component disposed in the frame, and a filter disposed at an opening of the side of the frame, a side opening of the bezel extends along an edge of the electronic whiteboard, a sensor of the sensor assembly is vertically arranged on a circuit board of the sensor assembly, and the circuit board extends along an edge of the display area, the vertical row of sensors Touch positioning is provided through the filter.

In one embodiment, the frame is generally cylindrical and has an L-shaped accommodating cavity for accommodating the sensor assembly, and the circuit board and the sensor of the sensor component are juxtaposed perpendicularly to each other. In the accommodating cavity of the L-shaped cross section.

In one embodiment, a pallet is further included, the circuit board being secured to the pallet and movably received within the bezel with the pallet.

In one embodiment, a frame connection structure disposed on the frame and opposite to the opening provided with the filter is further included, and the plurality of frames can be connected to each other through the frame connection structure.

In one embodiment, the bezel connection structure is a frame that mates with the angle iron.

A projection type electronic whiteboard includes a touch panel and a frame structure disposed on four edges of the touch panel, the frame structure includes a frame, a sensor component disposed in the frame, and a side of the frame a filter at the opening, the side opening of the frame extends along an edge of the touch panel, the sensor of the sensor assembly is vertically arranged on the circuit board of the light source assembly, and the circuit board is along the touch panel The edge extends, and the vertical row of sensors provides touch positioning through the filter.

In one embodiment, the frame is generally cylindrical and has an L-shaped receiving cavity for accommodating the light source assembly, and the circuit board and the sensor of the light source assembly are juxtaposed perpendicularly to each other. In the accommodating cavity of the L-shaped cross section.

In one embodiment, a frame connection structure disposed on the frame and opposite to the opening provided with the filter is further included, and adjacent frames are connected to each other through the frame connection structure.

In one embodiment, the frame connecting structure comprises a frame that is matched with the angle iron, the adjacent frames are connected by an angle iron, and the adjacent frame connection is fixedly connected with the angle iron and covers the end of the frame. Corner pieces.

The above-mentioned projection type electronic whiteboard and the frame structure thereof are arranged by vertically arranging the light emitting body of the infrared LED light source and the circuit board, so that the circuit board can be arranged in a direction extending along the edge of the screen, and the display screen can be displayed compared to the conventional setting mode. The frame portion is narrowed to facilitate a more aesthetically pleasing display.

[Description of the Drawings]

1 is a schematic diagram of a touch electronic whiteboard for projection;

Figure 2 is a transverse cross-sectional view of a conventional display screen;

3a and 3b are schematic structural views of the touch component of FIG. 2;

4 is a schematic structural view of a frame of a display screen according to an embodiment;

Figure 5 is a transverse cross-sectional view of the bezel structure of Figure 4;

6 is a schematic structural view of the touch component of FIG. 5;

Figure 7 is a transverse cross-sectional view of the display screen of an embodiment;

Figure 8 is a schematic view of the corner piece adjacent to the adjacent frame structure;

Figure 9 is a schematic view of the adjacent frame structure at the junction without corner pieces.

【detailed description】

FIG. 4 is a schematic structural view of a frame of a projection type electronic whiteboard according to an embodiment, and FIG. 5 is a transverse cross-sectional view of the frame structure shown in FIG. 4. 4 and 5, the bezel structure 10 includes a bezel 100, a sensor assembly 200 disposed within the bezel 100, and a filter 300 disposed at a side opening of the bezel 100 (refer to FIG. 5).

The frame 100 has a columnar shape as a whole and has an L-shaped receiving cavity. An opening extending along an edge of the screen of the electronic whiteboard is opened at a side of the frame 100, and the filter 300 is disposed at the opening.

As shown in FIG. 6, sensor assembly 200 includes a sensor 210 and a circuit board 220. In the bezel structure 10 disposed on the opposite edge of the electronic whiteboard, a transmitting sensor and a receiving sensor are correspondingly disposed. In this way, the sensor signal transmitted from one edge of the electronic whiteboard can be received by the sensor on the other side. The sensor 210 is vertically arranged on the circuit board 220, that is, the pins of the sensor 210 are the same as the sensor axis, such that the sensor 210 and the circuit board 220 are perpendicular to each other. The circuit board 220 extends along the edge of the electronic whiteboard, and the plurality of sensors 210 are sequentially arranged along the extending direction, and the transmitting or receiving direction of the sensor signal is directed toward the filter 300, and the light transmitting sheet 300 is provided with the touch positioning. The mutually perpendicular sensor 210 and the circuit board 220 are housed in the above-described accommodating cavity having an L-shaped cross section.

Further, as shown in FIG. 4 to FIG. 6 , the frame structure 10 of the embodiment further includes a tray 400 . The circuit 220 is secured to the pallet 400 and is movably received within the bezel 100 with the pallet 400.

In the traditional electronic whiteboard frame structure, once the sensor fails, some of the circuit boards in the sensor assembly are replaced. In this case, all four frames of the electronic whiteboard need to be removed to remove the circuit board. In the frame structure 10 of the embodiment, the sensor assembly 200 can move integrally with the tray 400 in the accommodating cavity of the frame 100. When the circuit fails, the tray 400 is pulled from one end of the frame 100, and the sensor can be used. The assembly 200 is taken out as a whole. Therefore, it can be easily maintained.

Further, as shown in FIG. 5 , the frame structure 10 of the embodiment further includes a frame connection structure 500 disposed on the frame 100 . In the position of the bezel 100, the bezel connection structure 500 is opposite to the opening provided with the filter 300. When the bezel 100 is connected to the edge of the electronic whiteboard, the bezel connection structure 500 and the filter 300 are respectively located on the front and back sides of the electronic whiteboard. Adjacent bezels 100 may be interconnected by a bezel connection structure 500 to form a compact frame as a whole.

In this embodiment, the bezel connection structure 500 is a frame that cooperates with the angle iron.

In the above embodiment, by vertically arranging the sensor body of the sensor 210 and the circuit board 220, the circuit board 210 can be disposed in a direction extending along the edge of the electronic whiteboard. Compared with the conventional setting manner, the frame portion of the electronic whiteboard can be changed. Narrow, easy to design a more beautiful electronic whiteboard. At the same time, the sensor assembly 200 as a whole can move in and out of the accommodating cavity of the frame 100 with the pallet 400, so that maintenance can be performed in the event of a sensor failure.

It can be understood that, in different embodiments, the pallet 400 and the frame connecting structure 500 are increased or decreased according to requirements such as cost or convenience, and the specific structure is not limited to the structure of the above embodiment.

As shown in Fig. 7, it is a transverse cross-sectional view of an electronic whiteboard according to an embodiment. The electronic whiteboard includes a touch panel 20 and a bezel structure 10 (the frame structure in which only two edges are shown in FIG. 7) provided in the four edges of the touch panel 20.

Referring to Figure 8, the bezel structure 10 is joined adjacent by corner members 30. Referring to FIG. 9, the corner structure 10 is disposed adjacent to the frame structure 10, and the frame connection structure 500 of the adjacent frame 10 is connected by the angle iron 40, and the corner piece 30 is fixedly connected with the angle iron 40 and covers the adjacent end of the frame 10. unit. When the light source assembly 200 fails, it is only necessary to disassemble the corner piece 30, and then the entire light source assembly 200 is pulled out through the pallet 400 to be easily repaired.

The above-mentioned embodiments are merely illustrative of several embodiments of the present invention, and the description thereof is more specific and detailed, but is not to be construed as limiting the scope of the invention. It should be noted that a number of variations and modifications may be made by those skilled in the art without departing from the spirit and scope of the invention. Therefore, the scope of the invention should be determined by the appended claims.

Claims

A frame structure of a projection type electronic whiteboard, configured to be disposed at an edge of a display area of the electronic whiteboard, comprising a frame, a sensor component disposed in the frame, and a filter disposed at an opening of the side of the frame, a side opening of the bezel extending along an edge of the electronic whiteboard, wherein a sensor of the sensor assembly is vertically arranged on a circuit board of the sensor assembly, and the circuit board extends along an edge of the display area, A vertical array of sensors provides touch positioning through the filter.
The frame structure of the projection type electronic whiteboard according to claim 1, wherein the frame is entirely in the shape of a bar and has an L-shaped accommodating cavity for accommodating the sensor assembly, the sensor The circuit board and the sensor of the assembly are disposed perpendicular to each other and placed in the L-shaped receiving cavity.
The frame structure of the projection type electronic whiteboard according to claim 1, further comprising a tray, the circuit board being fixed on the pallet and movably housed in the frame together with the pallet .
The frame structure of the projection type electronic whiteboard according to claim 1, further comprising a frame connecting structure disposed on the frame and opposite to the opening provided with the filter, wherein the plurality of frames pass through the frame The connection structures are connected to each other.
The frame structure of the projection type electronic whiteboard according to claim 4, wherein the frame connection structure is a frame that cooperates with the angle iron.
A projection type electronic whiteboard includes a touch panel and a frame structure disposed on four edges of the touch panel, the frame structure includes a frame, a sensor component disposed in the frame, and a side of the frame a filter at the opening, the side opening of the frame extending along an edge of the touch panel, wherein the sensor of the sensor assembly is vertically arranged on a circuit board of the light source assembly, and the circuit board is along The edge of the touchpad extends, and the vertical row of sensors provides touch positioning through the filter.
The projection type electronic whiteboard according to claim 6, wherein the frame is entirely in the shape of a bar and has an L-shaped accommodating cavity for accommodating the light source assembly, the circuit of the light source assembly. The plate and the sensor are disposed perpendicular to each other and placed in the L-shaped receiving cavity.
The projection type electronic whiteboard according to claim 6, further comprising a pallet fixed to the pallet and movably housed in the bezel together with the pallet.
The projection type electronic whiteboard according to claim 6, further comprising a frame connecting structure disposed on the frame and opposite to the opening provided with the filter, wherein the adjacent frames are connected to each other through the frame connecting structure connection.
The projection type electronic whiteboard according to claim 9, wherein the frame connecting structure comprises a frame that is matched with the angle iron, the adjacent frames are connected by an angle iron, and the adjacent frame connection is provided with the The angle iron is fixedly attached and covers the corner piece at the end of the bezel.