KR20040076415A - Touch Panel And Lyquid Crystal Display Associated with Touch Panel And Driving Method Thereof - Google Patents

Abstract

PURPOSE: An LCD device integrated with a touch panel is provided to form Braille points on a touch panel, and to output menus as voices, so that the visually impaired can recognize functions of menu buttons without any inconvenience. CONSTITUTION: A touch panel is attached to an LCD panel. A liquid crystal(121) and a spacer are injected between a lower glass substrate(120A) and an upper glass substrate(120B) of the LCD panel. A lower polarized sheet(114B) is attached to a rear side of the lower glass substrate(120A) opposite to a back light. An upper polarized sheet(114A) is attached to a front side of the upper glass substrate(120B) opposite to the touch panel. The touch panel is put on the upper polarized sheet(114A).

Description

Touch panel and touch panel integrated liquid crystal display and its driving method {Touch Panel And Lyquid Crystal Display Associated with Touch Panel And Driving Method Thereof}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a touch panel integrated liquid crystal display device, and more particularly, to a touch panel and a touch panel integrated liquid crystal display device and a method of driving the same which can be used by the visually impaired.

There are various kinds of displays for displaying an image, such as a cathode ray tube, a liquid crystal display, a plasma display panel, an electro luminescence display, and the like. In order to easily input the input information on the screen, such displays use a touch panel that is installed on the surface of the screen to input information corresponding to the position when the user presses the surface with a pen or finger to use the input device.

Referring to FIG. 1, a conventional touch panel integrated liquid crystal display device outputs coordinate signals of a touch point, controls the touch panel 10 integrated with the liquid crystal panel 8, the driving of the touch panel 10, and controls the touch panel ( 10. A touch panel controller 30 for calculating a coordinate value according to the coordinate signal from 10) and outputting the coordinate value to the system 40, and a system 40 for executing a corresponding command in response to the coordinate value from the touch panel controller 30. ).

The touch panel 10 includes an upper film 12 on which the first transparent conductive layer 14 is formed, and a lower substrate 16 on which the second transparent conductive layer 18 is formed and spaced apart from the upper film 12. Equipped.

The upper film 12 and the lower substrate 16 are bonded by a sealing material 22 applied along the outer portion of the non-touch area and spaced apart by the height of the sealing material 22. In addition, a plurality of dot spacers 20 may be formed on the first transparent conductive layer 14 of the upper film 12 or the lower substrate 16 to separate the upper film 12 from the lower substrate 16 in the touch area. 2 is further formed on the transparent conductive layer 18.

As the upper film 12 pressed by the pen (finger), a transparent film made of polyethylene terephthalate (PET) or the like is mainly used, and as the lower substrate 16, a transparent film of the same material as the upper substrate 12, Glass substrates or plastic substrates are used. As the first and second transparent conductive layers 14 and 18, any one of indum-tin-oxide (ITO), indum-zine-oxide (IZO), and indum-tin-zine-oxide (ITZO) is used. .

The touch panel 10 is connected to the X electrode bars 15 connected to both sides of the X-axis direction of the first transparent conductive layer 14, and to both sides of the Y-axis direction of the second transparent conductive layer 18. A Y electrode bar 19 is further provided.

In the touch panel 10, when the pen (finger) presses the upper film 12 and the first transparent conductive layer 14 contacts the second transparent conductive layer 18, the resistance value is changed according to the contact position. . In addition, since the current or the voltage is changed according to the variable resistance value, the touch panel 10 is connected to the first transparent conductive layer 14 through the second X electrode bar 15B connected to the X-axis. It outputs as a coordinate signal, and outputs a Y-axis coordinate signal through the 2nd Y electrode bar 19B connected to the 2nd transparent conductive layer 18. FIG. In this case, the touch panel 10 sequentially outputs the X-axis coordinate signal and the Y-axis coordinate signal under the control of the touch panel controller 30.

The touch panel controller 30 calculates and supplies coordinate values according to the X-axis and Y-axis coordinate signals of the touch point supplied from the touch panel 10 to the system 40. The touch panel controller 30 controls the first and second switches 24 and 26 according to the X-axis coordinate mode and the Y-axis coordinate mode to control the supply of power (Vcc, GND) to the touch panel 10. do.

To this end, the touch panel controller 30 includes an analog-to-digital converter (hereinafter referred to as an ADC) 32 and an ADC 32 for converting X-axis and Y-axis coordinate signals from the touch panel 10 into digital data. The microcomputer 34 which calculates a coordinate value by the combination of X-axis and Y-axis coordinate data from the microcomputer 34 and outputs it to the system 40, and the interface part which relays the coordinate value from the microcomputer 34, and supplies it to the system 40. FIG. 36 is provided.

2 is a flowchart illustrating a method of driving a touch panel integrated liquid crystal display according to the related art.

First, the microcomputer 34 is set to the X-axis coordinate mode in order to detect the X-axis coordinates. The potential coordinates of the set X-axis coordinate mode have different voltage values depending on the position where the first transparent conductive film 14 and the second transparent conductive film 18 are pressed and shorted. This voltage value is the X-axis voltage value at that point. (Step S1) Then, the microcomputer 34 switches to the Y axis coordinate mode in order to detect the Y axis coordinate in the set X axis coordinate mode. The potential coordinates of the switched Y-axis coordinate mode have different voltage values depending on the position where the first transparent conductive film 14 and the second transparent conductive film 18 are pressed and shorted. This voltage value is the Y-axis voltage value at that point. (Step S2) Using the detected X and Y-axis voltages, the microcomputer calculates the X and Y-axis coordinates. (Step S3) The calculated X, The Y-axis coordinates are transmitted to the system 40 which is connected to the display device of the touch panel through an interface (step S4).

3 is a view illustrating in detail the touch panel illustrated in FIG. 1.

Referring to FIG. 3, the general touch panel 10 includes a display unit A for displaying a screen and a menu display unit B for displaying various menus for operating the display unit A. FIG.

The display unit A implements an image corresponding to the menu selected by the menu display unit B. FIG. In addition, after pressing the display unit A with a pen (finger), the pressed coordinate value is detected and transmitted to the system to perform a command corresponding to the coordinate value in the system.

The menu display unit B is formed on the side and bottom of the touch panel 10 to display an image corresponding to a menu. The menu display unit B is displayed as a still image on the display panel located on the bottom bottom of the touch panel 10 or an image corresponding to a menu button is printed on the bottom bottom of the touch panel 10.

The operation of the touch panel 10 may be performed by clicking a button of the menu display unit B on which a picture on which a menu has been printed is pasted or touching a display unit A on which a screen is displayed, and corresponding information is displayed on the display unit A. FIG. do.

However, such a touch panel 10 can be used only in a state that can be visually confirmed. That is, in the case of the visually impaired, not only can not view the menu on the display unit (A) but also can not see the menu picture such as the menu display unit (B) because it is not possible to use the part because it does not know what part.

Accordingly, an object of the present invention is to provide a touch panel, a touch panel integrated liquid crystal display device, and a driving method thereof that can be used by the visually impaired.

1 is a view illustrating a conventional touch panel integrated liquid crystal display device.

2 is a flowchart illustrating a method of driving a conventional touch panel integrated liquid crystal display device;

3 is a view illustrating in detail the touch panel shown in FIG.

4 is a view showing a touch panel integrated liquid crystal display device according to the present invention;

FIG. 5 is a cross-sectional view illustrating the touch panel integrated liquid crystal display shown in FIG. 4.

FIG. 6 is a diagram illustrating in detail the touch panel illustrated in FIG. 4.

FIG. 7 is a cross-sectional view of a touch panel taken along a line "I-I '" in FIG.

8 is a flowchart illustrating a method of driving a touch panel integrated liquid crystal display device according to the present invention;

<Description of Symbols for Main Parts of Drawings>

10, 50: touch panel 12, 52: upper film

14, 54: first transparent conductive film 16, 56: lower substrate

18, 58: 2nd transparent conductive film 20, 60: dot spacer

24, 26, 64, 66: switch 30, 70: touch panel controller

32, 72: analog-to-digital converter (ADC) 34, 74: microcomputer

36, 76: interface unit 40, 80: system

90: voice control unit 100: speaker

15: X electrode bar 15A: first X electrode bar

15B: second X electrode bar 19: Y electrode bar

19A: 1st Y electrode bar 19B: 2nd Y electrode bar

A, AA: Display part B, BB: Menu display part

111: plate printed with menu pictures 8, 110: liquid crystal panel

112: Braille 114A, 114B: polarizing sheet

121: liquid crystal 122: spacer

123: gate wiring 124A: gate insulating film

124B: passivation layer 125: pixel electrode

130: common electrode 126A, 126B: alignment layer

127: black matrix 128: color filter

In order to achieve the above object, the touch panel according to the present invention is a lower substrate formed on the first transparent conductive film, a second transparent conductive film is formed on the first surface facing the lower substrate is formed in braille on the second surface Characterized in that the upper film having a plurality of menu buttons.

And a first electrode bar formed on the first transparent conductive film and a second electrode bar formed on the second transparent conductive film so as to cross the first electrode bar.

The braille may be formed to protrude on the upper film.

The braille is characterized in that it is formed of a material having an elastic force.

The braille is characterized in that formed of a silicon material.

A touch panel integrated liquid crystal display according to the present invention includes a touch panel generating a coordinate signal for a touch point of a user, and formed in a braille form on the touch panel to select at least one of an image signal and an audio signal. A plurality of menu buttons and a liquid crystal panel for realizing a video signal selected from the plurality of menu buttons.

The touch panel controller calculates a coordinate value according to the coordinate signal of the touch point supplied from the touch panel and calculates the touch point supplied from the plurality of menu buttons, and calculates the coordinate value supplied from the touch panel controller. And a voice driver for determining whether a menu button corresponding to the voice signal is selected, and a voice driver for implementing the voice signal selected by the system.

The voice driver may include a voice controller configured to generate voice information corresponding to the selected voice signal according to a result determined by the system, and a speaker to output voice information to the outside.

The touch panel may include a menu display unit on which a plurality of menu buttons formed in a braille form is located, and a display unit for implementing an image signal.

The menu display unit may be displayed as a still image on the liquid crystal panel.

The menu display unit is characterized in that the image plate corresponding to the menu button is attached to the lower plate of the touch panel.

The braille may be formed to protrude on the touch panel.

The braille is characterized in that it is formed of a material having an elastic force.

The braille is characterized in that formed of a silicon material.

A method of driving a touch panel integrated liquid crystal display according to the present invention includes selecting one of a plurality of menu buttons formed in braille on a menu display unit of a touch panel, and at least one of a video signal and an audio signal corresponding to the selected menu button. It characterized in that it comprises the step of outputting any one.

The outputting of the voice signal may include determining whether the selected menu is voice information and outputting a voice signal corresponding to the voice information.

Hereinafter, embodiments of the present invention will be described in detail with reference to FIGS. 4 to 8.

4 illustrates a touch panel integrated liquid crystal display device according to the present invention.

The touch panel integrated liquid crystal display shown in FIG. 4 outputs a coordinate signal of a touch point and controls the touch panel 50 integrated with the liquid crystal panel 110, the driving of the touch panel 50, and the touch panel 50 from the touch panel 50. In response to the coordinate values from the touch panel controller 70 and the touch panel controller 70 that calculates and outputs a coordinate value according to the coordinate signal of the touch panel controller 70, the voice menu is clicked. The system 80 for determining the state, the voice controller 90 for controlling the voice signal according to whether the voice menu is clicked from the system 80, and the speaker 100 to which the voice signal controlled by the voice controller 90 is output. ).

The touch panel 50 includes an upper film 52 on which the first transparent conductive layer 54 is formed, and a lower substrate 56 on which the second transparent conductive layer 58 is formed and spaced apart from the upper film 52. Equipped.

The upper film 52 and the lower substrate 56 are joined by a sealing material 62 applied along the outer portion of the non-touch area and spaced apart by the height of the sealing material 62. In addition, a plurality of dot spacers 60 may be formed on the first transparent conductive layer 54 or the lower substrate 56 of the upper film 52 to separate the upper film 52 from the lower substrate 56 in the touch area. 2 is further formed on the transparent conductive layer 58.

As the upper film 52 pressed by the pen (finger), a transparent film made of polyethylene terephthalate (PET) or the like is mainly used, and as the lower substrate 56, a transparent film made of the same material as the upper substrate 52, Glass substrates or plastic substrates are used. As the first and second transparent conductive layers 54 and 58, any one of indium-tin-oxide (ITO), indium-zine-oxide (IZO), and indum-tin-zine-oxide (ITZO) is used. .

The touch panel 50 is connected to X electrode bars 55 connected to both sides of the X-axis direction of the first transparent conductive layer 54, and to both sides of the Y-axis direction of the second transparent conductive layer 58. A Y electrode bar 59 is further provided. The X electrode bar 55 supplies the first X electrode bar 55A and the ground voltage GND to supply the driving voltage Vcc so that current flows in the X-axis direction to the first transparent conductive layer 54. It consists of the 2nd X electrode bar 55B. The Y electrode bar 59 supplies a first Y electrode bar 59A for supplying a driving voltage Vcc and a ground voltage GND to supply current to the second transparent conductive layer 56 in the Y-axis direction. It consists of the 2nd Y electrode bar 59B.

In the touch panel 50, when a pen or a finger presses the upper film 52 to make the first transparent conductive layer 54 contact with the second transparent conductive layer 58, the resistance value is changed according to the contact position. In addition, since the current or the voltage is changed according to the variable resistance value, the touch panel 50 is connected to the first transparent conductive layer 54 by the second X electrode bar 55B connected to the X-axis. It outputs as a coordinate signal, and outputs a Y-axis coordinate signal via the 2nd Y electrode bar 19B connected to the 2nd transparent conductive layer 58. FIG. In this case, the touch panel 50 sequentially outputs the X-axis coordinate signal and the Y-axis coordinate signal under the control of the touch panel controller 70.

In detail, when the driving voltage Vcc and the ground voltage GND are supplied to the X electrode bar 55 through the first and second switches 64 and 66, the touch panel 50 may include the first and second transparent conductive materials. The X-axis coordinate signal is output through the second X electrode bar 55B in response to the resistance variable by the point where the layers 54 and 58 contact. Subsequently, when the driving voltage Vcc and the ground voltage GND are supplied to the Y electrode bar 59 through the first and second switches 64 and 66, the touch panel 50 may have the first and second transparent conductive layers. The Y-axis coordinate signal is output through the second Y electrode bar 59B in response to the resistance value changed by the point where the 54 and 58 contacts.

Here, the first switch 64 supplies the driving voltage Vcc to the first X electrode bar 55A or the first Y electrode bar 59A in response to the control signal CS from the touch panel controller 70. Done. The second switch 66 supplies the base voltage GND to the second X electrode bar 55B or the second Y electrode bar 59B in response to the control signal CS from the touch panel controller 70. .

The touch panel controller 70 calculates and supplies coordinate values according to the X-axis and Y-axis coordinate signals of the touch point supplied from the touch panel 50 to the system 80. The touch panel controller 70 controls the first and second switches 64 and 66 to control the supply of power (Vcc, GND) to the touch panel 50. In particular, the touch panel controller 70 distinguishes between a pen (finger) touch, a pen (finger) touch, and a dual touch by a hand touch on the touch panel 50 to compensate or remove an error coordinate value due to the double touch. (Finger) The exact coordinates of the touch point are calculated.

To this end, the touch panel controller 70 includes an analog-to-digital converter (hereinafter referred to as an ADC) 72 and an ADC 72 for converting X-axis and Y-axis coordinate signals from the touch panel 50 into digital data. A microcomputer 74 that calculates coordinate values by combining the X-axis and Y-axis coordinate data from the microcomputer 74 and outputs the system 80 to the system 80, and an interface unit which relays the coordinate values from the microcomputer 74 to the system 80 ( 76).

The ADC 72 converts each of the X-axis coordinate signal and the Y-axis coordinate signal sequentially supplied from the touch panel 50 into digital data and outputs the digital data.

The microcomputer 74 combines the X-axis and Y-axis coordinate data sequentially supplied from the ADC 72 to calculate coordinate values of the touch points of the touch panel 50, and calculates the coordinate values through the interface unit 76. To the system 80. In this case, the microcomputer 74 outputs coordinate values calculated every fixed unit time, for example, 3.4 ms to 5 ms. In addition, the microcomputer 74 generates the control signal CS in a predetermined time unit so that the first switch 64 transmits the driving voltage Vcc to the first X electrode bar 55A or the first Y electrode bar 59A. The second switch 66 causes the base voltage GND to be supplied to the second X electrode bar 55B or the second Y electrode bar 59B.

The system 80 detects a coordinate value supplied from the touch panel controller 70 and executes a corresponding command or executes an application program associated with the coordinate value. In addition, the system 80 supplies power signals and video data necessary for the liquid crystal panel 110 on which the touch panel 50 is mounted on the surface. The system 80 determines whether a menu for implementing voice information on the touch panel 50 is clicked.

When the voice controller 90 determines that the voice menu is clicked by the system 80, the voice controller 90 executes a voice program embedded in the voice controller and supplies the voice signal corresponding to the detected menu to the speaker 100.

The speaker 100 outputs a voice signal from the voice controller 90 to the outside.

5 is a cross-sectional view illustrating a liquid crystal display device in which the touch panel and the liquid crystal panel of FIG. 4 are integrated.

Referring to FIG. 5, in the touch panel integrated liquid crystal display according to the present invention, the touch panel 116 is attached to the liquid crystal panel 110.

The liquid crystal 121 and the spacer 122 are injected between the lower glass substrate 120A and the upper glass substrate 120B of the liquid crystal panel 110.

In the lower panel structure of the liquid crystal panel 110, a gate wiring 123, a gate insulating layer 124A, a protective layer 124B, a pixel electrode 125, and a first alignment layer 126A are stacked on the lower glass substrate 120A. . Light is incident on the lower glass substrate 120A from a backlight (not shown).

In the upper plate structure of the liquid crystal panel 110, a black matrix 127, a color filter 128, a common electrode 130, and a second alignment layer 126B are stacked on the rear surface of the upper glass substrate 120B facing the lower plate. .

The lower polarizing sheet 114B is attached to the rear surface of the lower glass substrate 120A facing the back light (not shown) in the liquid crystal panel 110 and the front surface of the upper glass substrate 120B facing the touch panel. The upper polarizing sheet 114A is attached on it. The touch panel 116 is placed on the upper polarizing sheet 114A.

The touch panel 50 is formed on each of the lower substrate 56 facing the upper polarizing sheet 114A of the liquid crystal panel 110 and the lower substrate 56 and the upper film 52 to cross in a matrix form. 55 and 59 and a dot spacer 60 formed between the lower substrate 56 and the upper film 52. Since this has been described in detail above, it will be omitted below.

6, the touch panel 50 includes a display unit AA for displaying a screen and a menu display unit BB on which a plurality of menu buttons for operating the display unit AA are displayed.

The display unit AA implements an image corresponding to the menu selected on the menu display unit BB. In addition, after pressing the display unit AA with a pen or a finger, the pressed coordinate value is detected and transmitted to the system to perform a command corresponding to the coordinate value in the system.

The menu display unit BB is formed at the side and bottom of the touch panel 50 to display an image corresponding to a menu. The menu display unit BB is displayed as a still image on the liquid crystal panel 110 positioned on the bottom surface of the touch panel 50, or an image corresponding to a menu button is printed on the bottom surface of the touch panel 50. In this case, the menu display unit BB forms the role corresponding to each menu button of the menu display unit BB as the braille 112 on the touch panel 50 so that the visually impaired person can use the touch panel 50. .

That is, the touch panel 50 is convex on the touch panel 50 with the braille 112 so that the function of each menu button can be recognized by the visually impaired. Let's do it. In detail, as illustrated in FIG. 7, the visually impaired person can recognize the menu buttons of each of the menu display unit BB of the touch panel 50 located on the upper surface of the plate 111 on which the menu picture is printed with a finger. The menu button has convex 112 formed convexly on the upper film 52 of the touch panel 50. At this time, the braille 112, which is a protrusion formed on the surface of the upper film 52, is made of an elastic material or the like (for example, silicon). Since the function corresponding to each menu button of the menu display part BB is convexly formed on the surface of the upper film 52 of the touch panel 50 in Braille 112, the visually impaired person uses his / her finger to Can recognize the function. In addition, since the audio signal corresponding to each menu button is output to the outside through the speaker, the touch panel 50 can be used using hearing without using visual acuity.

In more detail, by pressing a button of the menu display unit BB of the touch panel 50 located on the upper surface of the plate 111 on which the menu has been previously printed using a pen (finger) or a display unit on which a screen is displayed. When (AA) is pressed, corresponding information is displayed on the display unit AA. However, such a touch panel 50 can be used only in a state that can be visually confirmed. That is, in the case of the visually impaired, not only the menu of the display unit AA can be seen, but also the menu picture such as the menu display unit BB cannot be seen, so it is impossible to know what part the role plays and thus cannot be used. Therefore, the visually impaired people can recognize the function of the menu button of each menu display unit BB in braille 112 on the touch panel 50 so as to recognize the role of the menu. In this case, the menu display unit BB is displayed as a still image on the liquid crystal panel 110 positioned on the bottom surface of the touch panel 50, or an image corresponding to the menu button is already printed on the bottom surface of the touch panel 50. Is displayed. Therefore, the visually impaired may recognize the braille 112 on the touch panel 50 to know the role of each menu button. Thereafter, when the recognized menu button is pressed above a predetermined pressure, the system 80 determines that the menu for implementing the voice information is clicked, and executes the voice program embedded in the voice controller 90 to correspond to the detected menu. The audio signal is output to the outside through the speaker 100.

For example, if there is a menu called "Call" among the menu buttons of the menu display unit BB of FIG. 6, the braille 112 corresponding to "Call" is placed on the touch panel 50 corresponding to the menu button. Inscribe in When the general public or the visually impaired person recognizes a button corresponding to "calling" and presses it using a pen (finger), "calling" is displayed on the display unit AA and "calling" through the speaker 100. Voice message is output to the outside. The general public can not only see the letters "call" displayed on the display unit AA, but also hear the voice message "call" output through the speaker 100 to the outside. At this time, the visually impaired person can not see the text "call" displayed on the display unit AA, but can hear the voice message "call" output to the outside through the speaker 100, it is inconvenient to hear this voice message You can take the following actions without

8 is a flowchart illustrating a method of driving a touch panel integrated liquid crystal display according to the present invention.

First, the microcomputer 74 is set to the X-axis coordinate mode in order to detect the X-axis coordinates. The potential coordinates of the set X-axis coordinate mode have different voltage values depending on the position where the first transparent conductive film 54 and the second transparent conductive film 58 are pressed and shorted. This voltage value is the X axis voltage value at that point. (Step S11) Then, the microcomputer 74 switches to the Y axis coordinate mode in order to detect the Y axis coordinate in the set X axis coordinate mode. The potential coordinates of the switched Y-axis coordinate mode have different voltage values depending on the position where the first transparent conductive film 54 and the second transparent conductive film 58 are pressed and shorted. This voltage value is the Y-axis voltage value at that point. (Step S12) Using the detected X and Y-axis voltages, the microcomputer calculates the X and Y axis coordinates (Step S13). The Y-axis coordinates are transmitted to the system 80 connected to the display device of the touch panel through the interface. (Step S14) The system 80 determines whether the voice menu on the touch panel 50 has been clicked. In step S15), if it is determined that the voice menu is not clicked, the voice message is not output. When it is determined that the voice menu has been clicked, the voice controller 90 supplies a voice signal corresponding to the voice menu to the voice controller 90. (Step S16) The voice signal from the voice controller 90 causes the speaker 100 to be transferred. In addition to being output to the outside, information on the audio signal is displayed on the display unit AA (step S17).

As such, the touch panel integrated liquid crystal display device according to the present invention is applied to a terminal equipped with a touch panel such as a personal portable terminal (eg, a laptop PC) or an electronic notebook, so that the visually impaired person can use not only the general public. In addition, it is possible to use a personal handheld terminal or an electronic notebook more conveniently by adding a voice function. In addition, the touch panel integrated liquid crystal display device according to the present invention may be applied to a kiosk or the like. Kiosk is a computer system based on not only numbers and letters but also pictures, photos, moving images and all useful information using the internet. In other words, it is an unmanned automatic guidance system that can realize images using 2D / 3D animation, VR and other special effects. When the present invention is applied to such a kiosk or the like, the user can select and use a menu by listening to voice information. Therefore, there is no need to prepare a separate button for the visually impaired.

As described above, the touch panel and the liquid crystal display integrated with the touch panel and the driving method thereof according to the present invention can be used not only by the general public but also by forming braille on the menu button on the touch panel so that the visually impaired person can recognize the function of the menu button. In addition, since the corresponding menu is output by voice, a touch panel integrated liquid crystal display device can be used without any inconvenience.

Those skilled in the art will appreciate that various changes and modifications can be made without departing from the technical spirit of the present invention. Therefore, the technical scope of the present invention should not be limited to the contents described in the detailed description of the specification but should be defined by the claims.

Claims (16)

In the touch panel for generating a coordinate signal for the user's touch point, A lower substrate formed on the first transparent conductive film, And an upper film having a plurality of menu buttons formed on the first surface facing the lower substrate and having a second transparent conductive film formed on the second surface in Braille. The method of claim 1, A first electrode bar formed on the first transparent conductive film; And a second electrode bar formed on the second transparent conductive film so as to intersect with the first electrode bar. The method of claim 1, The braille is formed to protrude on the second surface of the upper film. The method of claim 3, wherein The braille is a touch panel, characterized in that formed of a material having an elastic force. The method of claim 4, wherein The braille is characterized in that the touch panel is formed of a silicon material. A touch panel for generating a coordinate signal for a user's touch point; A plurality of menu buttons formed in braille on the touch panel to select at least one of a video signal and an audio signal; And a liquid crystal panel for implementing image signals selected from the plurality of menu buttons. The method of claim 6, A touch panel controller for calculating coordinate values according to coordinate signals of touch points supplied from the touch panel and calculating touch points supplied from the plurality of menu buttons; A system for determining whether a menu button corresponding to the voice signal is selected by calculating coordinate values supplied from the touch panel controller; And a voice driver for implementing a voice signal selected by the system. The method of claim 7, wherein The voice drive unit, A voice controller for generating voice information corresponding to the selected voice signal according to a result determined by the system; And a speaker for outputting the voice information to the outside. The method of claim 6, The touch panel A menu display unit on which a plurality of menu buttons formed in the braille form are located; And a display unit for realizing the video signal. The method of claim 7, wherein And the menu display unit is displayed as a still image on the liquid crystal panel. The method of claim 9, The menu display unit is a liquid crystal display device with a touch panel, characterized in that the image plate corresponding to the menu button is attached to the lower plate of the touch panel. The method of claim 6, And the braille is formed to protrude on the touch panel. The method of claim 12, And the braille is formed of a material having an elastic force. The method of claim 13, The braille is a liquid crystal display device, characterized in that the braille is formed of a silicon material. Selecting one of a plurality of menu buttons formed in braille on a menu display unit of the touch panel; And outputting at least one of an image signal and an audio signal corresponding to the selected menu button. The method of claim 15, The step of outputting the audio signal, Determining whether the selected menu is voice information, and outputting a voice signal corresponding to the voice information.