KR101198336B1 - Tablet testing apparatus and method for touch screen panel using electro magnetic type - Google Patents

Abstract

PURPOSE: A tablet inspection apparatus and method for a touch screen panel are provided to reduce inspection error by generating a signal in a touch pen member to a tablet in the state that the tablet is steadily fixed. CONSTITUTION: A main body(110) comprises a seating table(111) and a connector(113). A tablet for a touch screen panel is placed on the seating table. The connector applies an electric signal to the tablet. A touch signal generator(120) is movably installed on the main body and transmits frequency to the tablet and receives resonance frequency from the tablet. A driver(130) is combined with the touch signal generator and moves the touch signal generator in a vertical direction or a horizontal direction. A cover(140) is combined with the driver and covers the seating table. The cover guides the horizontal movement of the touch signal generator.

Description

Tablet testing device for touch screen panel using electromagnetic induction method and inspection method {TABLET TESTING APPARATUS AND METHOD FOR TOUCH SCREEN PANEL USING ELECTRO MAGNETIC TYPE}

The present invention relates to a tablet inspection device and an inspection method for a touch screen panel using an electromagnetic induction method, and more particularly, a touch using an electromagnetic induction method that allows a defect inspection to be performed using only a tablet before assembling the touch screen panel. The present invention relates to a tablet inspection device and an inspection method for a screen panel.

In general, as various portable electronic devices such as mobile communication terminals and notebook computers are developed, the demand for flat panel display devices that can be applied thereto is gradually increasing.

Liquid crystal display devices, plasma display panels, field emission display devices, and light emitting diode display devices are actively researched as flat panel displays. It is becoming. Recently, a touch screen that allows a user to directly input information on a screen using a finger or a pen has been applied as an input device of a flat panel display, replacing a conventional input device such as a mouse or a keyboard.

Touch screens are "monitors such as navigation, industrial terminals, notebook computers, financial automation devices, game consoles", "portable terminals such as mobile phones, MP3s, PDAs, PMPs, PSPs, handheld game consoles, DMB receivers", "refrigerators" , Home appliances such as microwave ovens, washing machines, etc., and is being expanded due to the advantages that anyone can easily operate.

BACKGROUND ART A touch screen image display device is an input device that allows a user's command to be input by selecting an instruction content displayed on a screen by a human hand or an object, and has recently been applied to various information processing devices. Such a touch screen panel is simple to operate, has less malfunction, and can input information without other input devices, and can be manufactured integrally with an image display device to increase portability of a product.

As such, the touch screen panel is classified into a resistive film type, a capacitive type, an electromagnetic induction type, a surface ultrasonic type, an infrared type, etc. according to a method of detecting a touched part. This is mainly used.

Resistive type is composed of two substrates coated with transparent electrodes, and is a method that recognizes the position by generating an electrical signal when the upper and lower electrode layers are contacted by applying pressure with a finger or a pen. to be.

In the capacitive type, a metal electrode is formed on the upper plate or the lower plate to form an equipotential in a conductive film which determines the touched position as a voltage gradient according to resistance in the state where a DC voltage is applied. The touched part is detected by detecting the position where the voltage change occurred.

The electro magnetic type detects a touched part by reading an LC value induced as the electronic pen touches the conductive layer.

The touch screen panel as described above is inspected for defects through a pre-factory inspection process. A typical touch screen panel inspection device is a connection part electrically connected to a terminal portion of a touch screen panel, a plurality of touch members for touching the touch area of the touch screen panel, a plurality of solenoids for operating the touch members, and a touch screen panel. And a control device for receiving the sensed signal and comparing the detected signal with a reference signal. Such a conventional touch screen panel touches the inspection target coordinates of the touch screen panel by operating a touch member corresponding to the inspection target coordinates among the plurality of touch members, and at this time, a touch screen by comparing a detection signal generated from the touch screen panel with a reference signal It is determined whether the panel is detected properly.

On the other hand, Korean Patent Publication No. 10-1065014 discloses an "inspection apparatus and inspection method of the touch screen panel".

The conventional screen panel inspection apparatus as described above has a serious problem of wasting resources because the touch member is fixed to the touch screen and then touched with the touch member to check for defects, and when the contact failure occurs, the entire touch screen must be discarded.

The present invention was developed to improve the conventional problems, using an electro-induction method that can be used to perform a defect inspection using only a tablet before assembling the touch screen panel without using the touch screen panel manufactured in the form of a finished product An object of the present invention is to provide a tablet inspection device and an inspection method for a touch screen panel.

In addition, the present invention is to generate and receive a signal from the touch pen member to the tablet in a state where the tablet for the touch screen panel is stably fixed to prevent a separate controller for receiving a touch signal on the tablet side to reduce the inspection error Another object of the present invention is to provide an inspection method and an inspection method for a touch screen panel using an electromagnetic induction method.

In addition, the present invention can inspect the defect of the tablet before assembling the touch screen panel, to provide a tablet inspection device and test method for the touch screen panel using an electromagnetic induction method to reduce the resources discarded when the failure occurs. There is another purpose.

In order to achieve the above object, the present invention provides a seating table on which a tablet for a touch screen panel is mounted, and a main body including a connector for applying an electrical signal to the tablet; A touch signal generator installed on the main body to move in close proximity to the tablet and transmitting a frequency to the tablet and receiving a resonant frequency generated by the tablet; A driving unit coupled to the touch signal generator and moving the touch signal generator in a vertical and horizontal direction; And a cover unit coupled to the driving unit to cover the seating table, the cover unit guiding a horizontal movement of the touch signal generator.

In addition, the present invention provides a tablet inspection device for a touch screen panel using an electromagnetic induction method in which a seating groove for seating the tablet is formed on a seating table.

In addition, the present invention provides a terminal unit for connecting the bus pattern unit of the tablet; And a connector made of a pattern close part coupled to the terminal part to closely contact the bus pattern part to the terminal part.

In addition, the present invention is coupled to the drive unit to move to the tablet in accordance with the movement of the drive unit, the touch pen member moving in a state spaced apart from the tablet through the cover; And a touch signal generation unit connected to the touch pen member in a wired manner so as to form an LC circuit to the touch pen member, and including a signal detector for applying an electrical signal to the touch pen member and detecting a resonance frequency resonating in the tablet. It provides a tablet inspection device for a touch screen panel using an electromagnetic induction method.

In addition, the present invention is provided on the main body is provided with a first lifting unit for lifting the cover unit and the touch signal generator; A horizontal moving part provided in the first lifting part to move the touch signal generation part in a horizontal direction; And a driving unit coupled to the horizontal moving unit so that the touch signal generating unit is mounted and moved in a horizontal direction by the horizontal moving member, and including a second lifting unit for elevating the touch signal generating unit. Provided is a tablet inspection device for a panel.

In addition, the present invention is coupled to the cover portion and the touch signal generator, the lifting plate member located on the upper side of the main body; And a first elevating unit formed on the main body to be coupled to the elevating plate member and configured to move the elevating plate member to move the elevating plate member.

In addition, the present invention is a fixed block coupled to be compatible with the first lifting portion; And a horizontal moving unit coupled to the touch signal generator, the second cylinder member coupled to the fixed block so as to reciprocate between the fixed blocks.

In addition, the present invention includes a third cylinder member coupled to the horizontal moving unit; And a second elevating unit coupled to the third cylinder member to be lifted and configured to be a holder member to which the touch pen member of the touch signal generator is mounted.

In addition, the present invention is a transparent or translucent cover plate is in contact with the upper surface of the seating table, the cover plate for guiding the touch pen member to move the touch pen member of the touch signal generating unit in close proximity to the tablet; And a cover part coupled between the cover plate and the driving part and configured to include a damper member absorbing the shock applied to the cover plate.

In addition, the present invention comprises the steps of mounting the tablet for the touch screen panel on the test table, and applying a drive signal to the tablet; Moving the electronic pen from one side of the tablet to the other side while generating an oscillation signal in the electronic pen, and detecting a resonance signal resonating in the tablet through the oscillation signal; And displaying an electrode pattern coordinate of the tablet which generates a resonance signal lower than a set value.

In addition, the present invention provides a method for testing a tablet for a touch screen panel using an electromagnetic induction method of applying the oscillation core to the electronic pen through a wire in a sensing step.

According to the touch screen panel tablet inspection device and test method using the electromagnetic induction method according to the present invention configured as described above, without using the touch screen panel manufactured in the form of a finished product, using only the tablet before assembling the touch screen panel There is an advantage that can proceed the defect inspection.

In addition, according to the present invention, by generating a signal from the touch pen member to the tablet in a state in which the tablet for the touch screen panel is stably fixed, preventing a separate controller for receiving a touch signal on the tablet side prevents an inspection error. There is an advantage to reduce.

In addition, according to the present invention, since the defect of the tablet can be inspected before assembling the touch screen panel, only the tablet is discarded when the defect occurs, thereby reducing the waste of resources.

1 is a perspective view showing a tablet inspection device for a touch screen panel using an electromagnetic induction method according to an embodiment of the present invention.
2 is a front view showing a tablet inspection device for a touch screen panel using an electromagnetic induction method according to an embodiment of the present invention.
3 is an enlarged perspective view illustrating main parts of a connector according to an exemplary embodiment of the present invention.
4 is a configuration diagram illustrating a configuration of a touch signal generator according to an exemplary embodiment of the present invention.
5 is an enlarged perspective view illustrating main parts of a driving unit according to an exemplary embodiment of the present invention.
6 is an enlarged perspective view illustrating main parts of a cover part according to an exemplary embodiment of the present invention.
7 is an enlarged cross-sectional view illustrating main parts of a cover unit according to an exemplary embodiment of the present invention.

The features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings. Prior to this, terms and words used in the present specification and claims are to be interpreted in accordance with the technical idea of the present invention based on the principle that the inventor can properly define the concept of the term in order to explain his invention in the best way. It must be interpreted in terms of meaning and concept.

Hereinafter, with reference to the accompanying drawings will be described in detail a tablet inspection device and test method for a touch screen panel using an electromagnetic induction method according to the present invention.

1 and 2, the tablet inspection apparatus 100 for a touch screen panel using the electromagnetic induction method according to the present embodiment includes a main body 110 on which the touch screen panel tablet 10 is seated, and the main body 110. The touch signal generator 120 for generating a signal to the tablet 10 is provided in the main body 110, the drive unit 130 for moving the touch signal generator 120 and the tablet 10 of the main body 110 ) Includes a cover part 140 provided in the main body 110.

The main body 110 has a seating table 111 on which the tablet 10 is seated, and has a connector 113 on one side of the seating table 111 for applying a current as a driving signal to the tablet 10. .

In the seating table 111, a seating recess 111a is formed so that the tablet 10 is stably seated and fixed, and the seating recess 111a is covered by the cover 140. Covering the tablet 10 with the cover unit 140 as described above prevents the tablet 10 from moving when the tablet 10 is inspected and at the same time the touch signal generator 120 is completely connected to the tablet 10. This is to move in the tablet 10 while preventing contact.

As the tablet 10 according to the present embodiment, a flexible tablet may be used.

Referring to FIGS. 1 and 3, the connector 113 includes a terminal portion 113a to which the bus pattern portion 11 of the tablet 10 is connected, and a terminal portion such that the bus pattern portion 11 is in close contact with the terminal portion 113a. The pattern contact part 113b coupled to 113a) is provided.

In addition, the connector 113 further includes a clamping member 115 to easily and stably couple or disconnect the terminal portion 113a and the pattern contact portion 133b.

The clamping member 115 includes a support member 115a coupled to an upper surface of the main body 110 so as to be located at one side of the seating table 111, and a rotation support member 115b rotatably coupled to the support member 115a. Equipped. At this time, the clamping member 115 has a terminal portion 113a coupled to the support member 115a, and the pattern contact portion 113b is coupled to the rotation support member 115b.

In addition, the clamping member 115 is rotatably coupled to the support member 115a and the rotation support member 115b through the hinge 115c, and is fixed to fix the rotation support member 115b to the support member 115a. The hook member 115b is engaged.

In addition, the clamping member 115 has a torsion spring coupled to the hinge 115c so that the rotation supporting member 115b can rotate in the supporting member 115a as the fixing hook member 115b is released.

As the clamping member 115 is coupled to the support member 115a by the rotation supporting member 115b, the pattern contact part 113b is brought into close contact with the terminal part 113a to thereby hold the bus pattern part 11 of the tablet 10. The terminal portion 113a is stably connected.

1, 2 and 4, the touch signal generator 120 is coupled to the driver 130 to move closer to the upper surface of the tablet 10 through the driver 130 and the cover 140. . The touch signal generator 120 transmits a frequency that is a test signal to the tablet 10 and receives a resonance frequency generated by the tablet 10 by this frequency.

To this end, the touch signal generator 120 according to the present embodiment applies a signal to the touch pen member 121 and the touch pen member 121 coupled to the driver 130, and the resonance occurs in the tablet 10. And a signal detector 123 for detecting the frequency.

In detail, the touch signal generator 120 configures an LC circuit to the touch pen member 121, and the signal detector 123 and the touch pen member 121 are connected by wire to stably transmit and receive a detection signal. .

The touch pen member 121 has a coil and a capacitor formed therein to be connected to the signal detector 123 to form an LC circuit, and a capacitor is formed at a nib portion close to the tablet 10.

The signal detector 123 is connected to the touch pen member 123 by wire to stably apply an electrical signal to the LC circuit formed on the touch pen member 123 and to stably receive the resonance frequency detected by the LC circuit.

1, 2, and 5, the driver 130 according to the present embodiment is coupled to the touch signal generator 120 and moves the touch signal generator 130 in the vertical and horizontal directions.

To this end, the driving unit 130 is provided in the main body 110 to move the first lifting unit 131, the touch pen member 123, which raises and lowers the cover unit 140 and the touch pen member 123 in a horizontal direction. The horizontal lifting unit 133 provided in the first lifting unit 131, and the second lifting unit 135 coupled to the horizontal moving unit 133 so that the touch pen member 123 is mounted.

The first elevating unit 131 lifts and lowers the elevating plate member 131a positioned above the main body 110 so that the cover unit 140 and the horizontal moving unit 133 are installed. The first cylinder member 131b is provided.

The lifting plate member 131a is coupled to the horizontal moving part 133 at the upper portion, and the cover portion 140 is coupled to the lower portion. The lifting plate member 131a is lifted from one side of the seating table 111.

The first cylinder member 131b is provided inside the main body 110 such that the cylinder rod is coupled to the elevating plate member 131a, and elevates the elevating plate member 131a through expansion and contraction of the cylinder rod.

In the present embodiment, a cylinder is used to operate the elevating plate member 131a. Can also be driven.

The horizontal moving part 133 is coupled to the upper surface of the elevating plate member 131a to horizontally move the touch pen member 121 detachably attached to the second lifting part 135.

The horizontal moving part 133 is a fixed block 133a coupled to the lifting plate member 131a and a second cylinder member coupled to the fixed block 133a to reciprocate between the fixed block 133a. 133b).

The second cylinder member 133b includes a cylinder member having both ends coupled to the fixed block 133a and a moving block moving along the cylinder member, and the second lifting unit 135 is coupled to the moving block.

The second lifting unit 135 is coupled to the second cylinder member 135a to mount the touch pen member 121, and lifts the touch pen member 121 as well as the tablet 10 by the horizontal moving unit 133. In the upper surface of the) to move in the diagonal direction of the tablet (10).

The second lifting unit 135 may include a third cylinder member 135a coupled to the second cylinder member 133b; And a holder member 135b coupled to the third cylinder member 135a to attach and detach the touch pen member 121. In addition, the second lifting unit 135 may further include a damping member 135c between the third cylinder member 135a and the holder member 135b to mitigate the impact when the touch pen member 121 contacts the cover plate 141. ) Is provided. This prevents the touch pen member 121 from being damaged.

As the damping member 135c according to the present embodiment, an elastic body such as a spring or rubber may be used, or a cylinder using pneumatic pressure may be used.

1, 2, 6, and 7, the cover unit 140 covers the seating table 111 to prevent the tablet 10 coupled to the seating table 111 from moving, and the touch pen member The horizontal movement of the touch pen member 121 is guided while preventing contact between the 121 and the tablet 10.

The cover part 140 includes a cover plate 141 in contact with an upper surface of the seating table 111, and a damper member for absorbing shock generated when the cover plate 141 contacts the seating table 111. 143 is provided. At this time, the damper member 143 is coupled to the lifting plate member 131a.

The cover plate 141 is formed to be transparent or translucent so that the bottom surface thereof is in contact with the top surface of the seating table 111, and the nib of the touch pen member 121 moves so that the touch pen member 121 moves in close proximity to the tablet 10. The guide groove 141a to be inserted is formed. The guide groove 141a is formed in a round shape so as to pass through the cover plate 141.

The damper member 143 is coupled between the cover plate 141 and the elevating plate member 131a to absorb the shock applied to the cover plate 141.

As the damper member 143 according to the present embodiment, an elastic body such as a spring or rubber may be used, or a cylinder using pneumatic pressure may be used.

A tablet inspection method using a tablet inspection apparatus for a touch screen panel using an electromagnetic induction method according to an embodiment of the present invention configured as described above will be described.

First, the tablet 10 for the touch screen panel for inspection is seated on the seating table 111 which is the inspection table, and the bus pattern portion 11 of the tablet 10 is connected to the connector 113 to the tablet 10. A step of applying a current which is a driving signal is performed.

Then, the touch pen member 121, which is an electronic pen, approaches the tablet 10 to generate an oscillation signal, and drives the touch pen member 121 to detect a resonance frequency generated in the tablet 10 according to the oscillation signal. Follow the steps.

In detail, the first lifting unit 131 of the driving unit 130 is operated to contact the cover plate 141 with the seating table 111, and the touch pen member 121 is driven through the driving of the second lifting unit 135. The nib is inserted into the guide groove 141a of the cover plate 141.

Subsequently, the touch pen member 121 is moved from one side of the tablet 10 to the other side while generating an oscillation wave number that is an oscillation signal from the touch pen member 121. Then, due to the oscillation signal of the touch pen member 121, a resonance frequency, which is a resonance signal, is generated in the tablet 10, and the detection is performed by using the LC circuit of the touch pen member 121.

In addition, comparing the resonance signal detected by the touch pen member 121 with a setting value and displaying the electrode pattern coordinates of the tablet 10 in which the resonance signal is smaller than the setting value on the display unit of the test apparatus 100. do.

In addition, the control unit (not shown) and the touch pen member 121 are connected in a wired manner so that the oscillation frequency is applied to the touch pen member 121 and the detection of the resonance frequency can be stabilized.

It will be apparent to those skilled in the art that the present invention is not limited to the embodiment described above, but may be embodied in various other forms without departing from the spirit of the invention, It will be understood by those of ordinary skill in the art that various changes and modifications may be made without departing from the scope of the present invention.

100: inspection device 110: main body
111: mounting table 113: connector
120: touch signal generator 121: touch pen member
123: signal detector 130: driver
131: first lifting portion 131a: lifting plate member
131b: first cylinder member 133: horizontal moving part
133a: fixed block 133b: second cylinder member
135: 2nd lifting part 135a: 3rd cylinder member
135b: holder member 140: cover portion
141: cover plate 143: damper member

Claims (11)

A main body (110) having a seating table (111) on which a tablet (10) for a touch screen panel is mounted and a connector (113) for applying an electrical signal to the tablet;
A touch signal generator 120 mounted to the main body to move in close proximity to the tablet and transmitting a frequency to the tablet and receiving a resonance frequency generated from the tablet;
A driver 130 coupled to the touch signal generator and moving the touch signal generator vertically and horizontally; And
A cover unit 140 coupled to the driving unit to cover the seating table and guiding horizontal movement of the touch signal generator;
Tablet inspection device for a touch screen panel using an electromagnetic induction method comprising a. The method of claim 1,
The seating table is a tablet inspection device for a touch screen panel using an electromagnetic induction method characterized in that the seating groove 111a is formed on which the tablet is seated. The method of claim 1, wherein the connector,
A terminal portion 113a to which the bus pattern portion 11 of the tablet is connected; And
A pattern close part 113b coupled to the terminal part such that the bus pattern part comes in close contact with the terminal part;
Tablet inspection device for a touch screen panel using an electromagnetic induction method comprising a. The touch signal generator of any one of claims 1 to 3,
A touch pen member 121 coupled to the driving unit to move to the tablet as the driving unit moves and spaced apart from the tablet through the cover unit; And
A signal detection unit (123) connected to the touch pen member in a wired manner so as to form an LC circuit to the touch pen member, applying an electric signal to the touch pen member, and detecting a resonance frequency resonating in the tablet;
Tablet inspection device for a touch screen panel using an electromagnetic induction method comprising a. The driving apparatus according to claim 1,
A first elevating unit 131 provided in the main body to elevate the cover unit and the touch signal generator together;
A horizontal moving part 133 installed in the first lifting part to move the touch signal generation part in a horizontal direction; And
A second elevating part 135 coupled to the horizontal moving part so as to mount the touch signal generating part and moving in the horizontal direction by the horizontal moving part, and elevating the touch signal generating part;
Tablet inspection device for a touch screen panel using an electromagnetic induction method comprising a. The method of claim 5, wherein the first lifting unit,
A lifting plate member (131a) coupled to the cover part and the touch signal generator and positioned above the main body; And
A first cylinder member (131b) installed in the main body to be coupled to the elevating plate member to move the elevating plate member;
Tablet inspection device for a touch screen panel using an electromagnetic induction method comprising a. The method of claim 5, wherein the horizontal moving unit,
A fixed block (133a) coupled to be compatible with the first lifting unit; And
A second cylinder member 133b coupled to the touch signal generator and coupled to the fixed block to reciprocate between the fixed blocks;
Tablet inspection device for a touch screen panel using an electromagnetic induction method comprising a. The method of claim 5, wherein the second lifting unit,
A third cylinder member 135a coupled to the horizontal moving part; And
A holder member 135b coupled to the third cylinder member to move up and down, and to which the touch pen member of the touch signal generator is mounted;
Tablet inspection device for a touch screen panel using an electromagnetic induction method comprising a. The method of claim 1, wherein the cover portion,
A cover plate 141 formed in a transparent or translucent manner to be in contact with an upper surface of the seating table, and to guide the touch pen member to move the touch pen member of the touch signal generator in close proximity to the tablet; And
A damper member 143 coupled between the cover plate and the driving part to absorb an impact applied to the cover plate;
Tablet inspection device for a touch screen panel using an electromagnetic induction method comprising a. Mounting a tablet for a touch screen panel on an examination table and applying a driving signal to the tablet;
Moving the electronic pen from one upper surface of the tablet to the other upper surface while generating a resonance signal in the electronic pen, and detecting a resonance signal resonating in the tablet through the resonance signal; And
Displaying electrode pattern coordinates of the tablet generating a resonance signal lower than a set value;
Tablet test method for a touch screen panel using an electromagnetic induction method comprising a. 11. The method of claim 10,
In the sensing step, the touch screen panel tablet inspection method using an electromagnetic induction method, characterized in that for applying the oscillation signal to the electronic pen via a wire.

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