Apparatus of operating touchscreen for the blind

Abstract

The present invention relates to a touchscreen operating device for the visually impaired, and more specifically, to an elevator operating device for the visually impaired that allows the visually impaired to conveniently input information via touch or voice input when using an elevator, and, in the case of an elevator, provides voice guidance regarding arrival at the destination floor and the opening or closing of the elevator door. The present invention for achieving the above-mentioned purpose is characterized by comprising: a touchscreen for a user to input the number of a destination floor; a control unit that recognizes the number of a destination floor transmitted from the touchscreen and generates and outputs a floor selection signal; a voice output unit that receives the floor selection signal and provides voice guidance on information about the destination floor and the elevator operating status; and a braille display unit that displays a panel area of ​​the touchscreen for verification.

Description

Technology Field

[0001] The present invention relates to a touchscreen operating device for the visually impaired, and more specifically, to an elevator operating device for the visually impaired that allows the visually impaired to conveniently input information via touch or voice input when using an elevator, and, in the case of an elevator, provides voice guidance regarding arrival at the destination floor and the opening or closing of the elevator door. Background Technology

[0002] Generally, an elevator is a lift installed in a building such as a high-rise apartment or building that allows convenient movement between floors, and passengers inside the elevator select their destination floor using a control panel installed on one side of the elevator.

[0003] FIG. 1 is a schematic diagram of a conventional elevator control panel. As shown in FIG. 1, a general elevator control panel (10) is composed of a floor direction display (1) for displaying the current floor number, an intercom speaker (2) for announcing external announcements, a call button (3) for calling staff in case of emergency, a floor selection button (4) with the destination floor displayed in Arabic numerals, a door closing button (5) for closing an open elevator door, a door opening button (6) for opening a closed elevator door, and a manual switch box (7) used for diagnosing and repairing the elevator.

[0004] And, in the operation of an elevator equipped with a control panel of this configuration, when a passenger on the elevator presses the floor selection button (4) corresponding to the destination floor to be reached, the elevator rises or descends toward the destination floor.

[0005] As described above, while moving to the target floor, the floor direction indicator (1) may display the floor currently being passed, as well as arrows indicating whether it is rising or falling.

[0006] Meanwhile, when the elevator reaches the destination floor, the destination floor reached is displayed on the floor direction indicator (1), and the elevator door opens.

[0007] At this time, each button on the elevator control panel is formed to protrude and includes Braille that can be recognized by visually impaired people.

[0008] However, buttons containing Braille may experience wear on the raised parts of the Braille during prolonged use, and if protruding foreign substances are attached around the Braille due to intent or negligence, there is a risk that visually impaired individuals may misinterpret numbers or letters.

[0009] Furthermore, switches and lamps equipped with mechanical contacts not only have a high failure rate but also poor visibility. From a manufacturing perspective, there was the inconvenience of having to vary the specifications and sizes of the enclosure and display panel according to the operating floor, and there were also problems of inconvenient production and increased costs due to the need to produce various types of buttons.

[0010] In addition, since there are no separate guidance devices other than speakers inside the elevator in case of an emergency, there is also a problem that if the elderly or disabled are trapped inside the elevator, they may not know how to respond or may be exposed to the risk of secondary safety accidents due to fear.

[0011] To resolve these issues, elevator interior button and floor display information is displayed as video on a monitor, a touchscreen is attached to the front of the monitor, and text and video information is provided by utilizing the characteristics of the monitor to make using the elevator more convenient.

[0012] However, elevator control panels using touchscreens have the problem that it is difficult for visually impaired people to identify the exact location of the touchscreen and to verify whether the destination floor has been accurately entered. Prior art literature

[0013] Korean Utility Model Registration No. 20-02635347 (Registered on Feb. 7, 2002) The problem to be solved

[0014] The present invention has been devised to solve the aforementioned problems, and the objective of the present invention is to provide a touchscreen operating device for the visually impaired that enables the visually impaired to use a touchscreen, allowing the visually impaired to conveniently input a number corresponding to the floor number of the destination floor on the touchscreen using a touch pen or fingernail, and to inform the visually impaired of the destination floor number, data input errors, elevator operating status, etc. via voice, thereby making it easy for the visually impaired to modify the floor number or use the elevator.

[0015] Furthermore, another objective of the present invention is to provide a touchscreen operating device for the visually impaired that enables the visually impaired to accurately locate the panel area or buttons by indicating the location of the touchscreen panel area or button portion in Braille, and allows the Braille portion displayed on the surface of the buttons to be changed according to the situation, thereby enabling a single button to perform various functions. means of solving the problem

[0016] The present invention for solving these problems is as follows:

[0017] It is characterized by including a touch screen for user input, a control unit that recognizes information transmitted from the touch screen and generates and outputs a corresponding control signal, a voice output unit that receives the control signal and provides voice guidance on content corresponding to the control signal, and a button unit having a plurality of buttons on the side of the touch screen.

[0018] Herein, the button constituting the button part is provided with a braille output device, and the braille output device is characterized by comprising a plurality of recognition pins provided to penetrate vertically through the button member constituting the button, a permanent magnet provided at the bottom of the recognition pin, an electromagnet for moving the permanent magnet, and a control board that operates the electromagnet provided on the recognition pin corresponding to a specific braille according to a control signal received from the control part.

[0019] At this time, the touchscreen is characterized by having a braille display portion formed on the outer side to indicate the panel area of ​​the touchscreen. Effects of the invention

[0020] According to the present invention with the above-described configuration, a visually impaired person can use a touchscreen, allowing the visually impaired person to conveniently input a number corresponding to the floor number of the destination floor on the touchscreen using a touch pen or fingernail, and providing voice notifications regarding the destination floor number, data input errors, elevator operation status, etc., thereby making it easier for the visually impaired person to modify the floor number or use the elevator.

[0021] Furthermore, the present invention enables visually impaired individuals to accurately locate panel areas and buttons by displaying the positions of panel areas or button parts of a touchscreen in Braille, and has the effect of allowing a single button to perform various functions by changing the Braille portion displayed on the surface of the button according to the situation. Brief explanation of the drawing

[0022] Figure 1 is a schematic diagram of a conventional elevator control panel. FIG. 2 is a block diagram showing the internal configuration of a touchscreen operating device for the visually impaired according to the present invention. FIG. 3 is a block diagram showing the internal configuration of a touchscreen according to the present invention. FIG. 4 is an external configuration diagram of a touchscreen operating device for the visually impaired according to the present invention. FIG. 5 is a drawing showing the state in which Braille is input into a touchscreen according to the present invention. FIG. 6 is an external configuration diagram of an elevator operating device for the visually impaired according to another embodiment of the present invention. FIG. 7 is a block diagram showing the internal configuration of a touchscreen operating device for the visually impaired according to another embodiment of the present invention. FIG. 8 is a conceptual diagram of a button section of a touchscreen operating device for the visually impaired according to another embodiment of the present invention. Specific details for implementing the invention

[0023] Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the attached drawings. Identical components in the drawings are denoted by the same reference numerals, and redundant descriptions of identical components are omitted. Furthermore, it should be understood that the present invention can be implemented in a number of different forms and is not limited to the described embodiments.

[0024] FIG. 2 is a block diagram showing the internal configuration of a touchscreen operating device for the visually impaired according to the present invention, FIG. 3 is a block diagram showing the internal configuration of a touchscreen according to the present invention, FIG. 4 is an external configuration diagram of a touchscreen operating device for the visually impaired according to the present invention, FIG. 5 is a diagram showing a state in which Braille is input into a touchscreen according to the present invention, FIG. 6 is an external configuration diagram of an elevator operating device for the visually impaired according to another embodiment of the present invention, FIG. 7 is a block diagram showing the internal configuration of a touchscreen operating device for the visually impaired according to yet another embodiment of the present invention, and FIG. 8 is a conceptual diagram of a button part of a touchscreen operating device for the visually impaired according to yet another embodiment of the present invention.

[0025] The present invention relates to a touchscreen operating device for the visually impaired, and for convenience of explanation, an elevator is to be described as an example. As shown in FIGS. 3 to 8, the configuration comprises a touchscreen (10) in which a user inputs a floor number corresponding to the destination floor, a control unit (20) that recognizes the floor number of the destination floor transmitted from the touchscreen (10) and generates and outputs a floor selection signal (control signal), a voice output unit (30) that receives the floor selection signal and provides voice guidance on the destination floor information (control signal) and the elevator operation status, a button unit (40) equipped with a plurality of buttons for elevator operation including confirmation / modification of the destination floor according to the voice guidance of the voice output unit (30), and a braille display unit (50) that displays a panel area of ​​the touchscreen (10) or a button of the button unit (40) to check, but is not limited thereto.

[0026] First, the touchscreen (10) includes a touch driving unit (13) that calculates coordinate data transmitted from a panel (12) attached to the front of a monitor (11) as shown in FIG. 3 and provides pattern data, a pattern processing unit (14) that extracts a preset specific value from the pattern data transmitted from the touch driving unit (13) and generates and outputs numeric data through pattern recognition, and a data storage unit (15) that stores a software-based pattern recognition algorithm.

[0027] At this time, the panel (12) of the touchscreen (10) may be operated by separating it into two areas for ease of use or to prepare for failure.

[0028] In addition, the pattern processing unit (14) distinguishes whether the pattern data was generated through numeric input or through Braille input and processes the pattern.

[0029] The pattern processing unit (14) extracts a preset specific value in the case of pattern data through numeric input as shown in FIG. 4, and generates numeric data by reading the corresponding number in correspondence with the extracted result value and the pattern recognition algorithm.

[0030] For example, the pattern processing unit (14) can analyze pattern data to extract a specific value for a straight line or curve data value, generate a similar image corresponding to the specific value, and then apply the similar image to a pattern recognition algorithm to extract a corresponding number.

[0031] Alternatively, the pattern processing unit (14) may analyze pattern data to extract a specific value for trace data values ​​such as a starting point, an ending point, and a connection point, and extract a number corresponding to the specific value through a pattern recognition algorithm in which a number corresponding to the specific value is stored.

[0032] However, as illustrated in FIG. 5, when a Braille character corresponding to the number '5' is input, the pattern processing unit (14) analyzes the pattern data to extract specific values, such as the position of the dot data and the number of dot inputs, and reads the corresponding number in correspondence with the pattern recognition algorithm to generate numeric data.

[0033] At this time, the pattern recognition algorithm stores Braille data corresponding to numbers 0 to 9 and pre-sets an allowable range for the location of Braille and the number of times the dots are entered, so that even if the Braille entered by a visually impaired person deviates from the correct location, it is recognized as allowed data within the pre-set allowable range.

[0034] Alternatively, the pattern processing unit (14) may generate numeric data by simply verifying the number by counting the number of touches when the user inputs the target layer by the number of touches the panel (12), or it may generate numeric data by recognizing the first input number of touches as the tens digit and then recognizing the number of touches input after a certain period of time as the ones digit.

[0035] In this way, the above pattern recognition algorithm can perform pattern processing in various ways in addition to the method described above to make it convenient for visually impaired people to use the touchscreen.

[0036] Meanwhile, when pattern recognition fails, the pattern processing unit (14) transmits the data input error status to the control unit (20), so that the control unit (20) notifies the user of the data input error status through the voice output unit (30) or the monitor (11) and deletes the currently entered pattern data.

[0037] At this time, when the number data verification is completed or the modification button (42) is pressed, the pattern processing unit (14) deletes the data entered on the touch screen (10) and enters a waiting state until the next number data is entered.

[0038] In this way, the touchscreen (10) functions by attaching a touch panel (12) to the screen of a general monitor (11). The panel (12) has invisible infrared rays flowing in all directions (left, right, up, and down) to create numerous square grids on the screen, so that when the grids are touched with various tools such as fingertips, fingernails, ballpoint pens, or touch pens (70), the location can be identified.

[0039] The above control unit (20) transmits a floor selection signal to the elevator drive control unit (25) based on numeric data input through the touchscreen (10). Then, the elevator drive control unit (25) controls the operation of the elevator so that it starts driving the elevator to move to the destination floor and opens and closes the elevator door when it reaches the destination floor.

[0040] In addition, the control unit (20) can notify the visually impaired person of the malfunction through the voice output unit (30) when the touchscreen (10) malfunctions, and automatically move to the lobby floor (or 1st floor) to ensure the safety of the passengers.

[0041] At this time, the control unit (20) can notify the building's management office or a service center responsible for elevator repair of the malfunction status of the touchscreen through an emergency communication line so that the malfunction repair can be carried out quickly.

[0042] Meanwhile, the voice output unit (30) is equipped with a voice memory (32) in which guidance broadcast messages related to elevator operation, including destination floor guidance corresponding to numerical data, data input error status, arrival at destination floor, opening and closing status of elevator door, emergency situation notification, and touchscreen (10) malfunction status notification, and a speaker (31) that outputs guidance broadcast messages stored in the voice memory (32).

[0043] Additionally, the button section (40) includes a destination floor confirmation button (41) for the user to confirm that the number broadcast through the speaker (31) is the destination floor, a destination floor correction button (42) for re-entering if the broadcast number is not the destination floor, and an emergency call button (43) for calling a manager in the control room in case of an emergency situation such as a sudden stop of the elevator or a fire, but additional buttons necessary for user convenience or elevator operation may be installed.

[0044] Meanwhile, as another embodiment of the present invention, the elevator operating device for the visually impaired further includes a remote control (65) equipped with number buttons including numbers and Braille and a plurality of function buttons related to elevator operation, and further includes a remote control receiver (60) that receives an elevator operation signal transmitted from the remote control (65) and transmits it to the control unit (20).

[0045] At this time, the function buttons provided on the remote control (65) include a destination floor confirmation button, a destination floor modification button, and an emergency call button. Additionally, the remote control (65) can be stored by installing a remote control holder (not shown) near the elevator control device for the visually impaired or in other locations where the user can easily find it.

[0046] In addition, the control unit (20) analyzes the elevator operation signal to extract numeric data corresponding to the destination floor and outputs the number corresponding to the numeric data as voice or on the screen, thereby enabling the user to confirm / modify the destination floor. After that, when the user's confirmation of the destination floor is complete, the control unit (20) generates a floor selection signal and transmits it to the elevator drive control unit (25).

[0047] Meanwhile, as illustrated in FIG. 6, the elevator operating device for the visually impaired according to the second embodiment of the present invention includes, in addition to the destination floor confirmation button (41) and modification button (42) and emergency call button (43) in the button section (40), a number button (44) including numbers from 0 to 9 and corresponding Braille for each number and a function switching button (45).

[0048] The number buttons (44) are installed at the bottom of the panel (12), but can be installed on one side or the top of the panel (12).

[0049] In addition, the number button (44) and the function switching button (45) can be configured to be pulled out into the interior of the panel (12) so as to be operated by switch operation.

[0050] At this time, the function switching button (45) instructs the operation of the number button (44) when the touchscreen (10) malfunctions, and the control unit (20) stops receiving number data from the touchscreen (10) when the pressing of the function switching button (45) is detected, detects the pressing of the number button (44) to identify the user's target floor, and generates and outputs a floor selection signal.

[0051] Alternatively, the control unit (20) may detect that the number button (44) is not a touch input through the touchscreen (10) even if the function switching button (45) is not provided, and may recognize the floor number corresponding to the currently pressed number as the target floor.

[0052] For example, when the control unit (20) presses '1' among the number buttons (44) and then presses '9' consecutively, it determines that the visually impaired person has entered the 19th floor as the destination floor and sends a floor selection signal to the elevator drive control unit (25) with the 19th floor as the destination floor.

[0053] Meanwhile, referring to FIG. 7, the elevator operating device for the visually impaired according to the third embodiment of the present invention is configured similarly to the first embodiment shown in FIG. 2, but is different in that it includes a microphone (81) into which the voice of the visually impaired is input, and a voice input unit (80) that digitally processes the analog voice input through the microphone (81) and transmits it to a control unit (20), and the control unit (20) stores a voice recognition algorithm capable of recognizing phrases or numbers.

[0054] That is, even if a visually impaired person does not use the touchscreen, the control unit (20) provides voice guidance through the voice output unit (30) according to a preset order.

[0055] For example, the control unit (20) detects when a user enters when the elevator door is opened or closed, and outputs a message through the voice output unit (30) and speaker (31) saying, "Say yes if you want to input voice."

[0056] At this time, if a visually impaired person says 'No', the control unit (20) recognizes 'No' through the microphone (81) and voice input unit (80) and waits for touch input using the touchscreen (10). However, if a visually impaired person says 'Yes', the control unit (20) recognizes 'Yes' through the microphone (81) and voice input unit (80) and broadcasts a message saying 'Please say the number corresponding to the destination floor' through the voice output unit (30) and speaker (31).

[0057] When a visually impaired person says '19', the control unit (20) recognizes '19' and broadcasts a message saying 'Please say it again' through the speaker (31). Afterwards, if the number recognized by the visually impaired person when answering the floor number once and twice is the same as '19', the control unit (20) determines that the destination floor is the 19th floor, generates a floor selection signal, and transmits it to the elevator drive control unit (25).

[0058] However, if the number recognized by the control unit (20) when the visually impaired person answers the floor number once and twice is not the same as '19', the control unit (20) initializes the target floor input and then guides the visually impaired person to say the number corresponding to the target floor again through the speaker (31).

[0059] As such, the elevator control device for the visually impaired capable of voice input can be usefully utilized by visually impaired people who are unskilled at using the touch screen (10) or who are unable to input numbers or Braille, and it is obvious that the voice guidance and voice recognition algorithms can be varied according to user convenience.

[0060] Hereinafter, the operation of an elevator operating device for the visually impaired according to an embodiment of the present invention will be described in more detail with reference to the drawings.

[0061] An elevator control device for the visually impaired according to an embodiment of the present invention inputs a number or Braille corresponding to the destination floor the user wishes to go to on a touchscreen (10) so that the visually impaired person can easily operate the elevator.

[0062] Meanwhile, in the elevator control device for the visually impaired according to the present invention, when a microphone (81) and a voice input unit (80) are installed, the visually impaired person can input the number corresponding to the destination floor using their own voice. At this time, the control unit (20) recognizes the user's voice and stores a voice recognition algorithm that can verify the number or character corresponding to the voice.

[0063] When a visually impaired person makes touch input, the area of ​​the panel (12) and the button section (40) are indicated by a braille display section (50) so that the location of the touchscreen (10) or the button section (40) can be easily identified, and the visually impaired person can easily input numbers or braille on the panel (12) using various methods such as a touch pen (70), fingertip, fingernail, or ballpoint pen.

[0064] The touch driving unit (13) of the touchscreen (10) calculates the coordinate data of the number or Braille input on the panel (12) to generate pattern data and transmits it to the pattern processing unit (14). Then, the pattern processing unit (14) analyzes the pattern data to extract a preset specific value, and generates corresponding number data by corresponding the extracted specific value to a pattern recognition algorithm and transmits it to the control unit (20).

[0065] At this time, the pattern processing unit (14) determines that pattern recognition has failed when it determines that there is no corresponding number as a result of matching a specific value extracted from the pattern data with a pattern recognition algorithm, transmits the data input error state to the control unit (20), and deletes the current pattern data from the monitor (11).

[0066] And, the control unit (20) notifies the voice output unit (30) or monitor (11) of the data input error status and requests that the number be re-entered.

[0067] Additionally, if the number broadcast through the speaker (31) is not the target floor, the user presses the target floor modification button (42) and re-enters the number, and the touchscreen (10) or control unit (20) deletes the previous data and performs the task of verifying the number data re-entered by the user.

[0068] However, if the number broadcast through the speaker (31) corresponds to the destination floor, the user presses the destination floor confirmation button (41), and when the control unit (20) detects the pressing of the destination floor confirmation button (41), it transmits a floor selection signal corresponding to the destination floor to the elevator drive control unit (25).

[0069] Meanwhile, as another embodiment of the present invention, a method for enabling elevator operation without pressing the destination floor confirmation button (41) and the modification button (42) is such that when the control unit (20) detects that the user is modifying the number corresponding to the destination floor within a certain time (e.g., 3 to 5 seconds) after the user has entered the number corresponding to the destination floor by touch input or voice input, the control unit (20) detects that the user is modifying the number corresponding to the destination floor and deletes the previously entered number data.

[0070] However, if the control unit (20) does not detect a touch input from the touchscreen (10) within a certain time after inputting a number corresponding to the target floor, it generates a floor selection signal based on the input number data and transmits it to the elevator drive control unit (25).

[0071] The elevator drive control unit (25) moves the elevator up or down to the destination floor, opens the elevator door, and closes the elevator door after a certain amount of time has elapsed. At this time, the voice output unit (30) continuously broadcasts arrival at the destination floor, elevator door opening, and elevator door closing through the speaker (31) so that the visually impaired person can safely use the elevator.

[0072] At this time, the monitor (11) of the touchscreen (10) may display an ascending / descending indicator, the number of floors being moved, and the destination floor as the elevator ascends or descends, and the control unit (20) may adjust the brightness of the screen to display blinking, etc., or output an arrival notification sound, etc. through the speaker (31) when it reaches the destination floor.

[0073] Although the above description explains an embodiment in which the elevator control device for the visually impaired is used exclusively by the visually impaired, the elevator control device for the visually impaired according to the present invention can be easily applied and operated not only by the visually impaired but also by the general public, the hearing impaired, and users with other disabilities.

[0074] In addition, as another embodiment of the present invention, as shown in FIG. 8, each button constituting the button portion (40) may be further equipped with a Braille output device (400), and the button consists of a button member (410) that moves up and down by a user and a press recognition unit (430) for checking the pressing state of the button member (410).

[0075] Here, the braille output device (400) comprises a plurality of recognition pins (412) provided to penetrate the button member (410) vertically, a permanent magnet (416) provided at the bottom of the recognition pin (412), and an electromagnet (422) for moving the permanent magnet (416).

[0076] Meanwhile, a control board (420) for controlling the electromagnet (422) is provided at the inner lower side of the button member (410). The control board (420) receives a signal from the control unit (20) and controls the polarity of the electromagnet (422) to operate the recognition pin (412) located at a position corresponding to the Braille character corresponding to the signal.

[0077] At this time, the polarity of the electromagnet (422) is set to be opposite to the polarity of the facing part of the permanent magnet (416) provided at the bottom of the recognition pin (412), so that the permanent magnet (416) moves away from the electromagnet (422), and accordingly, the end of the recognition pin (412) protrudes to the outside of the button member (410), thereby forming a specific Braille character by a plurality of recognition pins (412).

[0078] Accordingly, by enabling various expressions with just one button through the braille output device (400) formed on each button, it is possible to quickly receive responses from users such as visually impaired people by forming only a minimum number of buttons instead of forming multiple buttons in a narrow space.

[0079] Additionally, a hollow support member (411) is formed on the inner side of the button member (410), and the support member (411) is formed on the inner side of the through hole into which the recognition pin (412) is inserted so that the recognition pin (412) can move without shaking.

[0080] The touchscreen operating device for the visually impaired according to the present invention described above can be used in various devices, such as kiosks, as well as elevators as described as an example.

[0081] Although preferred embodiments of the present invention have been described above, the scope of the present invention is not limited thereto, and the scope of the present invention extends to those within a substantially equivalent range to the embodiments of the present invention. Various modifications can be made by those skilled in the art to which the present invention belongs, without departing from the spirit of the present invention. Industrial applicability

[0082] The present invention relates to a touchscreen operating device for the visually impaired, and more specifically, to an elevator operating device for the visually impaired that allows the visually impaired to conveniently input information via touch or voice input when using an elevator, and, in the case of an elevator, provides voice guidance regarding arrival at the destination floor and the opening or closing of the elevator door. Explanation of the symbols

[0083] 10 : Touchscreen 20 : Control unit 30 : Voice output unit 40 : Button unit 50 : Braille display unit 60 : Remote control receiver unit 65 : Remote control 70 : Touch pen 80 : Voice input section 81 : Microphone 400: Braille output device 410: Button absence 420: Control board 430: Press recognition unit

Claims

Claim 1 A touchscreen operating device for a visually impaired person, comprising a touchscreen input by a user, a control unit that recognizes information transmitted from the touchscreen and generates and outputs a corresponding control signal, a voice output unit that receives the control signal and provides voice guidance on content corresponding to the control signal, and a button unit having a plurality of buttons on the side of the touchscreen, wherein a braille output device is provided on the inner side of the button constituting the button unit, and the braille output device comprises a plurality of recognition pins provided to penetrate the button member constituting the button vertically, a permanent magnet provided at the bottom of the recognition pin, an electromagnet for moving the permanent magnet, and a control board that operates the electromagnet provided on the recognition pin corresponding to a specific braille according to a control signal received from the control unit, wherein a hollow support member is formed on the inner side of the button member so that the recognition pin can move without shaking, and the support member is formed on the inner side of a through hole into which the recognition pin is inserted, and a braille display unit is formed on the outer side of the touchscreen to indicate the panel area of ​​the touchscreen. Claim 2 delete Claim 3 delete

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