JP3228939U - Non-contact touch panel unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a non-contact touch panel unit which can be operated reliably and non-contactly and which can be applied to an existing touch panel display device or a display device which does not have a function as a touch panel. A non-contact touch panel unit 100 that can be attached to a display device 2 is a quadrangular frame that covers the periphery of the display unit 1 and has a thickness of 2 cm or more and 5 cm or less on the front side of the surface of the display unit 1. The substrate 22 provided with 20 and integrally provided with the frame 20 detects which position coordinates on the display unit 1 are indicated at a distance where the indicator body 3 such as a user's finger does not contact the display unit 1. It is equipped with a non-contact touch position detection function capable of detecting the non-contact touch position of the display unit 1 of the display device 2 by connecting the USB cable 21 connected to the board 22 to the USB port of the display device 2. Operate as a touch panel with a function. [Selection diagram] Fig. 4

Description

The present invention relates to a non-contact touch panel unit that can be attached to a display device having a display unit.

Conventionally, input devices such as personal computers and tablets, guidance devices for facilities, reception devices, search devices, etc., selection buttons on the display screen using an indicator such as a user's finger or a dedicated stylus or touch pen, etc. A touch panel type display device is known, and in recent years, a touch panel type display device has been used in various fields.

At this time, various methods for detecting the touch position coordinates by the touch panel are known, such as an optical type, an electromagnetic induction type, a pressure sensitive type, a resistance type, a sound wave detection type, and a capacitance type. A case where an optical means is used will be described.

The optical touch position coordinate detection device captures an indicator placed on a touch panel, which is a detection surface, from two locations by at least two imaging units, and obtains the touch position coordinates of the indicator by the principle of triangulation. is there. For example, a device that detects the shape of an indicator placed on the touch panel by image recognition or the like and outputs touch position coordinates, or a retroreflective member that reflects incident light in the incident direction around the indicator or the touch panel. In some cases, the touch position coordinates are output from the position of the light portion or the shadow portion by radiating light from the light source toward the light source (see, for example, Patent Documents 1 and 2).

On the other hand, due to the spread of the new coronavirus, there is a growing demand for "non-contact" regarding various human behaviors in order to reduce the risk of virus infection, and buttons that have been touched by an unspecified number of people until now. , Switches, touch panel type display devices, etc. that can be operated without contact are desired.

Japanese Unexamined Patent Publication No. 2005-4729 JP-A-2007-317235

However, for example, the conventional optical touch position detection device described in Patent Documents 1, 2 and the like is basically premised on touching (touching) the touch panel which is the detection surface, and does not touch as much as possible. Even if it is operated in this way, it cannot be operated without any contact, and there is a problem that danger and anxiety remain from the viewpoint of preventing the spread of virus infection. In addition, in order to replace the existing touch panel display device that has been used up to now with a non-contact touch panel type display device that can be operated without contact, there is no choice but to replace the entire display device, which is a problem that it costs a lot of money. There was also.

This device was made to solve the above-mentioned problems, and not only can it be operated reliably without contact, but it does not have a function as an existing touch panel display device or touch panel. An object of the present invention is to provide a non-contact touch panel unit that can be applied to a display device.

In order to achieve the above object, the present invention is a non-contact touch panel unit that can be attached to a display device having a display unit, covers the periphery of the display unit of the display device, and is on the front side of the surface of the display unit. A quadrangular frame having a thickness of 2 cm or more and 5 cm or less is provided, and the frame is provided with a control board integrally on any one of the four sides of the quadrangle, and at least the four sides of the quadrangle are provided. Sensor units are integrally provided at two locations (at least two adjacent corners) at both ends of one of the three sides, and retroreflective tape is attached to the inside of the other three sides. In the above, when the position (coordinates) in the display unit is indicated by the indicator, the two sensor units and the retroreflective tape are used at a distance where the indicator does not touch (contact) the display unit. It is equipped with a non-contact touch position detection function that can detect which position (coordinates) the indicator has indicated on the display unit, and a USB cable that can be connected to the USB port of the display device is connected. By connecting the USB cable to the USB port of the display device, the display unit of the display device is operated as a touch panel with the non-contact touch position detection function.

According to the non-contact touch panel unit of the present invention, not only can a display device having a display unit be operated reliably and non-contactly, but also an existing touch panel device or a display device that does not have a function as a touch panel can be used. Since it can be applied as long as there is a USB port, it can be used as a non-contact touch panel type display device at no cost, and even if it is a display device used by an unspecified number of people. By using it, it is possible to prevent the risk of spreading the virus infection.

It is schematic explanatory drawing which shows an example of the general (conventional) optical touch position detection apparatus. It is an external view which shows the schematic structure of the non-contact touch panel unit which concerns on this invention. FIG. 5 is an external explanatory view showing a state in which the non-contact touch panel unit shown in FIG. 2 of the present invention is attached to a display device having a display unit. It is a schematic explanatory drawing which shows the internal structure of the non-contact touch panel unit which concerns on this invention, and the method of attaching this non-contact touch panel unit to the display device which has a display part, and detecting the position (coordinates).

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
1A and 1B are schematic explanatory views showing an example of a general (conventional) optical touch position detection device, FIG. 1A is a schematic plan view, and FIG. 1B is a partial cross section seen from a side surface. It is a figure. The optical touch position detection device 10 shown in FIG. 1 includes infrared sensor units 11 at at least two corners of the display device 2 having the rectangular display unit 1, and has three of the four sides of the rectangular display unit 1. A retroreflective tape 12 is attached to the inside. Here, the display unit 1 also serves as a detection surface of the optical touch position detection device 10.

Then, in the optical touch position detection device 10 shown in FIG. 1, when the indicator 3 such as the user's finger touches (contacts) the display unit 1 (detection surface), the indicator 3 such as the finger touches the infrared sensor unit 11. In order to shield the light emitted from, the light that should be reflected from the retroreflective tape 12 does not return unless it is shielded, so that the touch position coordinates of the indicator 3 such as a finger are used by using the principle of triangulation. Can be detected.

However, the general (conventional) optical touch position detection device 10 as shown in FIG. 1 is basically operated by touching (touching) an indicator body 3 such as a finger with the display unit 1 which is a detection surface. On the premise of this, even if the operation was performed so as not to touch it as much as possible, it was not possible to operate it without making any contact.

Therefore, as shown in FIGS. 2 and 3, the non-contact touch panel unit 100 according to the embodiment of the present invention covers the periphery of the display unit 1 of the display device 2 and is 3 cm in front of the surface of the display unit 1. It is provided with a quadrangular frame (frame) 20 having a thickness.

FIG. 2 is an external view showing a schematic configuration of the non-contact touch panel unit 100 according to the present invention, and FIG. 3 shows the non-contact touch panel unit 100 shown in FIG. 2 of the present invention on a display device 2 having a display unit 1. It is an external appearance explanatory drawing which shows the attached state. Further, FIG. 4 is a schematic description showing the internal structure of the non-contact touch panel unit 100 according to the present invention and a method of attaching the non-contact touch panel unit 100 to a display device 2 having a display unit 1 to detect a position (coordinates). It is a figure.

In the embodiment of the present invention, the thickness L (see FIG. 2) of the quadrangular frame 20 of the non-contact touch panel unit 100 in the depth direction is 3 cm as described above, but the thickness is 2 cm. If it is smaller, there is a possibility that the indicator 3 such as a finger touches the display unit 1 when detecting the indicated position coordinates, and if it has a thickness larger than 5 cm, it may come into contact with the display unit 1. Since the viewing angle error becomes large, the position indicated by the indicator 3 such as a finger may shift and accurate detection may not be possible. Therefore, the thickness (display) of this frame 20 in the depth direction (display). The thickness (thickness from the surface of the portion 1 to the front side) L is preferably 2 cm or more and 5 cm or less.

Further, as shown in FIG. 4, the quadrangular frame (frame) 20 of the non-contact touch panel unit 100 is integrally provided with a control board 22 on any one side (here, the upper side) of the four sides of the quadrangle. At the same time, a USB cable 21 that can be connected to a USB port (not shown) of the display device 2 is connected to the control board 22. Note that FIG. 4 does not clearly indicate that the control board 22 and the USB cable 21 are connected, and the USB cable 21 is drawn so as to come out from the lower right of the frame 20. Actually, the USB cable 21 is connected to the control board 22.

Further, as shown in FIG. 4, the quadrangular frame (frame) 20 of the non-contact touch panel unit 100 is at least quadrangular like the general (conventional) optical touch position detecting device described with reference to FIG. Infrared sensor units 23 are integrally provided at two locations (at least two adjacent corners) at both ends of any one of the four sides (here, the upper side), and retroreflective tape is provided inside the other three sides. 24 (hatched portion in the figure) is attached. Since the control board 22 and the infrared sensor unit 23 are built in the frame 20 in a state where they cannot be seen from the outside, they are represented by a alternate long and short dash line in FIG.

Further, in FIG. 4, the indicator body 3 such as the user's finger is gradually approaching the display unit 1 while the display unit 1 displays a menu screen having a plurality of menus and a numerical value input unit. The broken line arrows from the two infrared sensor units 23 toward the indicator 3 are arrows indicating that the position (coordinates) of the indicator 3 is detected by the principle of triangulation. Note that FIG. 4 schematically shows that the USB cable 21 is connected to the control board 22 (integrally provided) built in the quadrangular frame (frame) 20 as described above. This indicates that the USB cable 21 is not yet connected to the USB port of the display device 2.

When the position (coordinates) of the display unit 1 is instructed on the control board 22 by an indicator body 3 such as a user's finger, the indicator body 3 gradually approaches the display unit 1, but the indicator body 3 gradually approaches the display unit 1. At a distance where 3 does not touch the display unit 1, that is, when the indicator 3 enters the sensing region within the range of the thickness L in the depth direction of the frame 20, the two infrared sensor units 23 and the quadrangle The retroreflective tape 24 provided inside the three sides of the frame 20 provides a non-contact touch position detection function that can detect which position (coordinates) the indicator 3 has indicated on the display unit 1. It is equipped. Then, the USB cable 21 connected to the control board 22 is connected to the USB port (not shown) of the display device 2, so that the display unit 1 of the display device 2 is a touch panel with a non-contact touch position detection function. Operate as.

At this time, as the operating system (OS) of the display device 2, Windows 7 (32/64 bits), Windows 8 (32/64 bits), Windows 8.1 (32/64 bits), and Windows 10 (32/64 bits) are used. The operation confirmation that the display unit 1 operates as a touch panel with a non-contact touch position detection function when the non-contact touch panel unit 100 is connected has also been proven, and if it is a normal Windows compatible display device 2, It has also been confirmed that even an existing display device can be used as a display device having a non-contact touch panel function.

The infrared sensor unit 23 is a sensor unit including an infrared transmitting unit and an infrared receiving unit. Here, the infrared sensor unit is similar to the general (conventional) optical touch position detecting device 10 shown in FIG. Although the 23 is described as being arranged at two adjacent corners of the square frame (frame) 20, it may be arranged at at least two adjacent corners and may be arranged at four corners.

As described above, since the non-contact touch panel unit 100 in the present invention has the above-mentioned structure and function, it is an existing touch panel type that has been used as a complete touch (contact) type position detection device until now. If the touch detection function of the above display device is disabled in advance, the non-contact touch panel unit 100 of the present invention can be attached later and used as a non-contact touch panel type display device. If the existing touch panel also has a USB connection method, it is sufficient to remove the USB connector and connect the non-contact touch panel unit 100 of the present invention.

Further, even for an existing simple display device that did not have a touch panel function until now, if it can be connected by USB, the non-contact touch panel unit 100 of the present invention can be connected to the USB port to make non-contact. It can be used as a display device having a touch panel function.

As described above, according to the non-contact touch panel unit 100 according to the embodiment of the present invention, not only can the display device 2 having the display unit 1 be operated reliably and non-contactly, but also the existing touch panel device and the existing touch panel device can be operated. Since it can be applied to a display device that did not have a function as a touch panel as long as it has a USB port, it can be used as a non-contact touch panel type display device at no cost, and an unspecified number of people can use it. Even if the display device is used by humans, it is possible to prevent the risk of spreading virus infection by using the display device.

In the present invention, it is possible to modify any component of the embodiment or omit any component of the embodiment within the scope of the device.

1 Display unit 2 Display device 3 Indicator 10 Optical touch position detection device 11, 23 Infrared sensor unit 12, 24 Retroreflective tape 20 Frame (frame)
21 USB cable 22 Control board 100 Non-contact touch panel unit

In order to achieve the above object, the present invention is a non-contact touch panel unit that can be attached to a display device having a display unit, covers the periphery of the display unit of the display device, and is on the front side of the surface of the display unit. A quadrangular frame having a thickness of 2 cm or more and 5 cm or less is provided, and the frame is integrally provided with a control board on any one of the four sides of the quadrangle, and at least one of the four sides of the quadrangle is provided. Sensor units are integrally provided at two locations at both ends , that is, at least two adjacent corners , and retroreflective tape is attached to the inside of the other three sides, and the display is displayed on the control board. When the position coordinates in the unit are instructed by the indicator, at a distance where the indicator does not come into contact with the display unit, the two sensor units and the retroreflective tape make the indicator the position coordinates in the display unit. A non-contact touch position detection function that can detect whether or not the display device is instructed is provided, and a USB cable that can be connected to the USB port of the display device is connected, and the USB cable is the USB of the display device. By being connected to the port, the display unit of the display device is operated as a touch panel with the non-contact touch position detection function.

Claims (1)

A non-contact touch panel unit that can be attached to a display device that has a display unit.
A quadrangular frame that covers the periphery of the display unit of the display device and has a thickness of 2 cm or more and 5 cm or less on the front side of the surface of the display unit.
With
A control board is integrally provided on any one of the four sides of the quadrangle in the frame, and at least two positions (at least two adjacent corners) at both ends of any one of the four sides of the quadrangle are provided. The sensor unit is integrally provided on the quadrangle, and retroreflex tape is attached to the inside of the other three sides.
On the control board, when the position (coordinates) in the display unit is instructed by the indicator body, the two sensor units and the retroreflective tape are provided at a distance where the indicator body does not touch (contact) the display unit. This provides a non-contact touch position detection function that can detect which position (coordinates) the indicator indicates on the display unit, and a USB cable that can be connected to the USB port of the display device. Is connected and
A non-contact touch panel unit characterized in that the display unit of the display device is operated as a touch panel with the non-contact touch position detection function by connecting the USB cable to the USB port of the display device.

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