KR100798472B1 - Board structure of infrared ray touch-screen - Google Patents

Abstract

A board structure of an infrared touch screen is provided to reduce width of a substrate and implement a function of the infrared touch screen with simple chips/circuit lines by dividing the substrate and connecting each divided substrate through connection lines. An X-axis transmitting substrate(50) includes more than one X-axis transmitter. An X-axis receiving substrate(60) includes more than one X-axis receiver. A Y-axis transmitting substrate(30) includes more than one Y-axis transmitter. A Y-axis receiving substrate(40) includes more than one Y-axis receiver. Each substrate is connected to other substrates by using the connection line(80) comprising more than one line. The X or Y-axis transmitting substrate includes an external connector providing a data/clock signal to the X and Y-axis transmitter/receiver by connecting to an external controller, and transferring a detection signal detected in the X and Y-axis receiver to the controller. The connection line comprises a data signal line, a clock signal line, a detection signal line, a power line, and a ground line.

Description

Board structure of infrared ray Touch-Screen}

1 is a view showing a board structure of a conventional barrel or an integrated infrared touch screen.

2 is a diagram illustrating a board structure of an infrared touch screen according to an exemplary embodiment of the present invention.

3 is a diagram illustrating a detailed circuit configuration of each X-axis / Y-axis substrate mounted on the board structure of the infrared touch screen according to the present invention.

4 is a diagram illustrating a circuit configuration in which an external connection connector according to the present invention is connected to a Y-axis transmitter plate and an X-axis receiver plate of a board of an infrared touch screen by a connection jack.

5 is a diagram illustrating a circuit configuration in which a connection jack of a Y-axis transmitter plate and a connection jack of an X-axis transmitter plate are connected according to the present invention.

6 is a diagram illustrating a circuit configuration in which a connection jack of an X-axis receiver plate and a connection jack of a Y-axis receiver plate according to the present invention are connected.

7 is a diagram illustrating a circuit configuration in which a connection jack of an X-axis transmitter plate and a connection jack of a Y-axis receiver plate are connected according to the present invention.

*** Explanation of symbols for main parts of drawing ***

10: board of conventional infrared touch screen 20: circuit line of conventional board

30: Y-axis transmitter plate 31: Y-axis transmitter

32, 42, 52, 62: chip 33, 53: infrared light emitting diode

34, 35: Y-axis transmitter plate connecting jack 40: Y-axis receiver plate

41: Y-axis receiver 44, 45: Y-axis receiver plate connection jack

43, 63: infrared light receiving transistor 50: X-axis transmitter plate

51: X-axis transmitter 54, 55: X-axis transmitter plate connecting jack

60: X-axis receiver plate 61: X-axis receiver

64, 65: X-axis receiver plate connecting jack 70: Board to board connection

81: external connector 82: data signal line

83: clock signal line 84: detection signal line

85: power line 86: ground wire

The present invention relates to a board structure of an infrared touch screen used in a touch screen system.

More specifically, by separating the board into a plurality of boards and connecting the board and the board through a plurality of connection lines, the board structure of the infrared touch screen can reduce the width of the board and provide the function of the infrared touch screen with only a simple chip and a circuit line. It is about.

In general, in a computer system, control command input or data input is mainly performed by a keyboard. Recently, various information providing terminal devices have been installed in public places or places where services are needed to provide various information, cultural information, leisure information, and traffic information to the general public.

However, in using a terminal for receiving these information, the keyboard is mainly used, and this use of the keyboard has a disadvantage in reducing the usability of the terminal. One of the shortcomings is that keyboard failures occur easily by using the keyboard too often, and the other makes it difficult to access the computer. The touch screen system was devised to improve this closure.

The touch screen is a coordinate input device that receives an input by touching a finger directly on the monitor screen. This is to solve the inconvenience that is imposed on the user by using the keyboard of the computer as an input device instead of the keyboard.

For example, even if you have an informational terminal at the entrance of a complex building (such as an exhibition hall, a large shopping center, or a leisure facility) that tells you where you are looking for, most people simply look at the complicated keyboard. You will be tempted to look up your own and find a guide around you. This is a problem with keyboard-enabled computers.

It is often called a computer mind, and if the mind spreads, anyone will be able to operate the computer easily. However, due to the difficulty of the key input means, the realization is premature. As part of the solution, a coordinate input device called a touch screen has been developed, which can be used to find information desired by an optical sensor by touching a finger to a desired function menu on a monitor screen instead of using a conventional keyboard. There are two main methods of sensing the touch screen.

One is a resistance sensor method using a resistance pad, the other is an optical sensor method using an infrared element. In the optical sensor method, the sensing point of the sensor is slightly away from the surface of the monitor. Therefore, there may be some errors depending on the angle at which the person looks at the monitor. On the other hand, the resistance sensor type has a resistance pad attached to the surface of the monitor, so there is no error in the viewing angle, but when the market is used, the surface is dirty by foreign matters, and thus an accurate value cannot be read.

Therefore, since the optical sensor method can be used semi-permanently, the optical sensor method is preferably used in many places where many people use it frequently.

1 is a view showing a board structure of a conventional infrared touch screen. Referring to FIG. 1, the board of the infrared touch screen will be described in more detail. The board of the conventional touch screen includes various components and chips for performing functions such as a controller, a transmitter, and a receiver on a board 10 or a board. And an external connection terminal, and the like, and are mounted on a substrate. The backside of the substrate 10 includes a large number of circuit lines 20 for connecting the respective components and chips.

However, as shown in FIG. 1, by placing a large number of components, chips, and complicated and large number of circuit lines on a board or integrated substrate, the width of the substrate has to be widened. I had to spend a lot of time. In addition, there are many substrates that need to be discarded unnecessarily in order to manufacture the board or the integrally constructed substrate, and there is a problem in that the production cost increases according to the manufacture of the substrate.

The present invention has been made to solve the problems described above, by separating the substrate into a plurality of substrates and connecting the substrate through a plurality of connection lines, reducing the width of the substrate and the function of the infrared touch screen only with simple chips and circuit lines The purpose is to provide a board structure of the infrared touch screen that can provide.

An object of the present invention as described above is, in a touch screen system, an X-axis transmitter plate including one or more X-axis transmitters, an X-axis receiver plate including one or more X-axis receivers, and one or more Y-axis transmitters. It comprises a Y-axis transmitter plate and a Y-axis receiver plate including one or more Y-axis receiver,

Each substrate and the substrate is achieved by providing a board structure of the infrared touch screen, characterized in that connected by one or more connecting lines.

Hereinafter, a board structure of an infrared touch screen according to an exemplary embodiment of the present invention will be described in detail with reference to the accompanying drawings.

2 is a diagram illustrating a board structure of an infrared touch screen according to an exemplary embodiment of the present invention. Referring to Figure 2 the board structure of the infrared touch screen of the present invention in more detail,

The board of the present invention infrared touch screen is Y-axis transmitter plate 30, Y-axis receiver plate 40, X-axis transmitter plate 50, X-axis receiver plate 60 and connecting lines 82, 83, 84, 85, 86).

Each of the substrates is separately manufactured, and the connecting lines 82, 83, 84, 85, 86 or the connecting jacks 34, 35, 44, 45, 54, like the enlarged substrate and the connection form 70 of the substrate shown in FIG. 55, 64, 65) is formed in the form that is connected,

The Y-axis transmitter plate 30 includes one or more Y-axis transmitters 31 including eight infrared light emitting diodes 33 and one chip 32 for controlling the same.

The Y-axis receiver plate 40 includes one or more Y-axis receivers 41 including eight infrared light receiving transistors 43 and one chip 42 for controlling the same.

The X-axis transmitter plate 50 includes one or more X-axis transmitters 51 including eight infrared light emitting diodes 53 and one chip 52 for controlling the same.

The X-axis receiver plate 60 includes one or more X-axis receivers 61 including eight infrared light emitting diodes 63 and one chip 62 for controlling the same.

Each of the separated substrates and the substrate is connected by one or more connection lines 82, 83, 84, 85, and 86. The connection lines 70 may include data signal lines 82, clock signal lines 83, and detection signal lines. And 84, a power line 85 and a ground line 86, and each of the chips 32 to 32-n, 42 to 42-n, 52 to 52-n, 62 mounted on each of the substrates. 62-n), and controls and drives an infrared light emitting diode and an infrared light receiving transistor connected to each chip.

The connection line 82, 83, 84, 85, 86 will be described in detail later.

The Y-axis transmitter 31 of the Y-axis transmitter plate corresponds to the Y-axis receiver 41 of the Y-axis receiver plate, and the number thereof is the same, and the X-axis transmitter 51 of the X-axis transmitter plate is Corresponding to the X-axis receiver 61 of the X-axis receiver plate, the number thereof is the same, and the number of the Y-axis transmitter 31 and the receiver 41 is eight, respectively, and the X-axis transmitter 51 and the receiver 61 ) Is preferably composed of six,

In the present invention, the connection line 82, 83, 84, 85, 86 by the Y-axis transmitter 31 and the receiver 41 and the X-axis transmitter 51 and the receiver 61 can be easily connected while being mounted indefinitely. Due to this characteristic, the width of each substrate can be produced within 10mm ~ 8mm.

Further, the X-axis / Y-axis transmitters 51 and 31 and the X-axis / Y-axis receiver 61 are connected to an external control device (not shown) to the Y-axis transmitter plate 30 or the X-axis receiver plate 60. And an external connection connector 81 which simultaneously provides a data signal and a clock signal to the control unit (not shown) and provides a detection signal detected by the X-axis / Y-axis receiving units 61 and 41 to the control device (not shown). It is characterized by including.

Hereinafter, the connection structure and the operating principle of each board configured as described above will be described in more detail through a circuit configuration.

3 is a diagram illustrating a detailed circuit configuration of each X-axis / Y-axis substrate mounted on the board structure of the infrared touch screen according to the present invention. 4 is a diagram illustrating a circuit configuration in which an external connection connector according to the present invention is connected to a Y-axis transmitter plate and an X-axis receiver plate of a board of an infrared touch screen by a connection jack. 5 is a diagram illustrating a circuit configuration in which a connection jack of a Y-axis transmitter plate and a connection jack of an X-axis transmitter plate are connected according to the present invention. 6 is a diagram illustrating a circuit configuration in which a connection jack of an X-axis receiver plate and a connection jack of a Y-axis receiver plate according to the present invention are connected. 7 is a diagram illustrating a circuit configuration in which a connection jack of an X-axis transmitter plate and a connection jack of a Y-axis receiver plate are connected according to the present invention.

Referring to Figures 3 to 7 the board connection structure and operation principle of each board in more detail,

The connection line 82, 83, 84, 85, 86, which is a feature of the present invention, is connected to an external connection connector 81 connected to a control device (not shown) to receive a control signal, and a data signal line 82, DATA SIGNAL. ), A clock signal line 83 (CLOCK SIGNAL), a detection signal line 84 (DETECTOR SIGNAL), a power line 85 (VCC), and a ground line 86 (GND),

As shown in FIG. 3, the connection lines 82, 83, 84, 85, and 86 may include chips 32 to 32-n, 42 to 42-n, 52 to 52-n, and 62 to 32, respectively. 62-n are connected to each other, and each of the substrates 30, 40, 50, and 60 is connected to each other through the connection jacks 34, 35, 44, 45, 54, 55, 64, and 65 of each substrate. Power is applied to each of the chips 32 to 32-n, 42 to 42-n, 52 to 52-n, and 62 to 62-n by the power line 85.

As described above, each of the chips 32-32-n, 42-42-n, 52-52-n, 62-62-n and each of the substrates 30, 40, 50, and 60 are connected to the connection lines 82 and 83. When the control device (not shown) transfers the data signal and the clock signal which are the control signals through the data signal line 82 and the clock signal line 83 in the state of being connected to the points 84, 85, 86,

As shown in FIG. 4, the data signal line 82 (DATA SIGNAL) transmits a data signal as an input value to the chip 32 of the first Y-axis transmitter mounted on the Y-axis transmitter plate 30, thereby providing the first infrared light emitting diode ( 33), and at the same time to transmit the data signal as an input value to the chip 42 of the first Y-axis receiver mounted on the Y-axis receiver plate 40 to drive the first infrared light receiving transistor 43,

The clock signal line 83 (CLOCK SIGNAL) simultaneously transmits a clock signal to the chips 32 and 42 of the first Y-axis transmitter and receiver of the Y-axis transmitter plate 30 and the Y-axis receiver plate 40, and the clock signal. Each time is input, the data signals input to the chips 32 and 42 of the Y-axis transmitter and receiver are sequentially shifted to sequentially drive the eight infrared light emitting diodes 33 and the infrared light receiving transistor 43. .

When driving of the infrared light emitting diodes 33 and the infrared light receiving transistor 43 of the first Y-axis transmitter and receiver is completed, the second Y-axis transmitter and receiver are the data signal lines 82 connected to the first Y-axis transmitter and receiver; The clock signal line 83 sequentially drives eight infrared light emitting diodes and infrared light receiving transistors through the same process as described above.

After sequentially driving the Y-axis transmitter and the Y-axis receiver of the Y-axis transmitter and the Y-axis receiver comprising a plurality of the Y-axis transmitter plate 30 and the Y-axis receiver plate 40 in sequence, FIG. As shown, the Y-axis transmitter plate 30 transmits a data signal and a clock signal to the X-axis transmitter plate 30 through the connection jack 34 of the Y-axis transmitter plate 30, as shown in FIG. As described above, the Y-axis receiver plate 30 transmits a data signal and a clock signal to the X-axis receiver plate 30 through the connection jack 44 of the Y-axis receiver plate.

By using the transmitted data signal and the clock signal, an X-ray transmitter and an X-ray receiver of an infrared light emitting diode and an infrared light receiving transistor which are composed of a plurality of X-axis transmitter plates 50 and receiver plates 60 through the same process as described above. It will be driven sequentially.

When touching the screen of the touch screen using a human hand or other device in the process,

The touched position of the light receiving transistor of the X-axis receiver and the Y-axis receiver is sensed, and the detected detection signal is transmitted to the control device (not shown) through the detection signal line 84.

Herein, while the present invention has been described with reference to the preferred embodiments, those skilled in the art will variously modify the present invention without departing from the spirit and scope of the invention as set forth in the claims below. And can be changed.

As described above, the board structure of the infrared touch screen of the present invention separates the substrate into a plurality of substrates and connects the substrate and the substrate through a plurality of connection lines, thereby eliminating unnecessary consumption of the substrate and reducing the width of the substrate. Has the effect of saving

Another effect is that the connection lines can be used to simplify the chip and circuit lines of the X-axis / Y-axis transmitter and receiver, so that it is not necessary to spend a lot of time in circuit configuration, and the X-axis / Y-axis transmitter and receiver is infinite. There is an effect that can be arranged.

Claims (6)

In the touch screen system, An X-axis transmitter plate including one or more X-axis transmitters; An X-axis receiver plate including one or more X-axis receivers; A Y-axis transmitter plate including one or more Y-axis transmitters; And A Y-axis receiver plate including one or more Y-axis receivers; It is made, including Board structure of the infrared touch screen, characterized in that each of the substrate and the substrate is connected by a connection line consisting of one or more. The method of claim 1, wherein the X-axis receiver plate or Y-axis transmitter plate Connected to an external control device to simultaneously provide data signals and clock signals to the X-axis / Y-axis transmitter and the X-axis / Y-axis receiver, and deliver the detection signals detected by the X-axis / Y-axis receiver to the controller. Board structure of the infrared touch screen, characterized in that it further comprises a connector. The method of claim 1, wherein the X-axis / Y-axis transmitter plate and the X-axis / Y-axis receiver plate Board structure of the infrared touch screen, characterized in that the width of the substrate is 10mm ~ 8mm because the X-axis / Y-axis transmitter and the X-axis / Y-axis receiver is connected by the connecting line. The method of claim 1, wherein the connecting line A data signal line for driving an infrared light emitting diode and an infrared light receiving transistor, a clock signal line for sequentially shifting the infrared light emitting diode and an infrared light receiving transistor, a detection signal line for transmitting a detection signal detected by an X-axis / Y-axis receiving unit, a power supply Board structure of the infrared touch screen, characterized in that consisting of a power supply line and a grounding wire. According to claim 1, wherein the X-axis / Y-axis transmitter and the X-axis / Y-axis receiver Board structure of an infrared touch screen, characterized in that composed of one or more infrared light emitting diodes or one or more infrared light receiving transistors and one chip for controlling them. The method according to claim 2 or 4, Using the data signal and the clock signal, the infrared light emitting diode of the X-axis / Y-axis transmitter and the infrared light receiving transistor of the X-axis / Y-axis receiver are sequentially shifted to drive the X-axis / Y-axis transmitter. Board structure of the infrared touch screen, characterized in that to enable the X-axis / Y-axis receiving endless connection.

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