JP2009025848A - DISPLAY DEVICE HAVING INPUT UNIT, INFORMATION DEVICE DEVICE HAVING THE SAME, AND METHOD FOR DRIVING DISPLAY DEVICE HAVING INPUT UNIT - Google Patents

Abstract

A display device having input means for displaying a key map at a position where it can be easily pressed is provided.
A light-transmitting touch panel provided corresponding to a display unit, an initial press detection unit that detects that the touch panel is first touched, and a key arrangement of input keys are stored. When the first contact is detected by the key map storage unit 5 and the first press detection unit 7, the key map is read from the key map storage unit 5, the contact position of the first contact on the touch panel 3, and the reference position of the key map The key map development unit 6 that outputs the read key map to the display unit 2 and outputs the position and value of each input key of the read key map and the touch position on the touch panel 3 A key map is provided at a position where the key map can be easily pressed by including a coupling unit 8 that outputs a value of an input key corresponding to a contact position on the touch panel 3 from the key map development unit 6. It is shown.
[Selection] Figure 1

Description

  The present invention relates to a display device having input means such as a touch panel mounted on an information device such as a mobile phone.

  By mounting a transparent touch panel on the display surface that displays the image to be pressed, and correcting the relationship between the pressed coordinates on the touch panel and the target to be pressed according to the operator, an accurate pressing result can be obtained even with a small image to be pressed. Conventionally, a display device with a touch panel is known (see, for example, Patent Document 1).

In addition, in information equipment devices such as mobile phones, it is conventionally known that a large amount of information can be displayed at one time by arranging a display device with a touch panel on almost the entire surface of the information equipment device (see, for example, Patent Document 2). ).
JP-A-8-221207 Japanese Utility Model Publication No. 5-68159

  On the other hand, mobile phones have become smaller and become relatively smaller than human hands, making it difficult to hold them with human hands. In addition, the display screen of the mobile phone has been enlarged, and the installation location of the key input unit on the surface of the mobile phone is limited. For example, the key input unit may be installed at the end of the surface of the mobile phone.

  Key input on a mobile phone is often performed with the thumb of the dominant hand while holding it with the dominant hand, but it becomes difficult to hold the mobile phone due to downsizing, and the key input part is installed at the end, There is a problem that it is difficult to input keys with the thumb of the dominant hand while holding it with the dominant hand.

  In the device described in Patent Document 1, even if the relationship between the pressed coordinate and the pressed object can be corrected according to the operator, there still remains a problem that the correction key is difficult to operate with the dominant hand thumb.

  In addition, what is described in Patent Document 2 is a general device in which a display device with a touch panel is arranged on almost the entire surface of an information equipment device so that a large amount of information can be displayed at one time. It has not been solved at all.

  The present invention has been made in order to solve the above-described problems, and is equipped with a touch panel suitable for an information device such as a mobile phone that is easily held by a hand and allows easy key input with a thumb of the held hand. An object is to provide a display device.

A display device having an input means according to the present invention includes a light-transmitting contact detection means provided corresponding to the display means, an initial contact detection means for detecting that the contact detection means is first touched, and an input key. When the first contact is detected by the key arrangement storage means storing the key arrangement and the initial contact detection means, the key arrangement is read from the key arrangement storage means, the contact position of the first contact in the contact detection means, and the key The key arrangement developing means for outputting the read key arrangement to the display means so as to correspond to the reference position of the arrangement and outputting the position and value of each input key of the read key arrangement, and the contact at the contact detection means And a combination means for outputting the value of the input key corresponding to the contact position in the contact detection means from the key arrangement development means based on the position.

  With this configuration, it is possible to output the key arrangement to the display means so that the reference position of the key arrangement corresponds to the contact position first contacted with the contact detection means.

  Moreover, the information equipment apparatus of this invention has the structure provided with the display apparatus which has said input means.

  With this configuration, it is possible to provide an information device in which a key arrangement is displayed at a position where key input is easy.

  Further, according to the driving method of the display device having the input means of the present invention, the key arrangement of the input keys is stored when the first contact with the light detecting contact detecting means provided corresponding to the display means is detected. A step of reading the key arrangement from the key arrangement storage means, and a step of outputting the read key arrangement to the display means so that the contact position of the first contact in the contact detection means corresponds to the reference position of the key arrangement; A step of outputting the position and value of each input key in the read key arrangement, and a step of outputting the value of the input key corresponding to the contact position in the contact detection unit based on the contact position in the contact detection unit It has the composition provided.

  With this configuration, it is possible to output the key arrangement to the display means so that the reference position of the key arrangement corresponds to the contact position first contacted with the contact detection means.

  In the display device having the input means of the present invention, the initial contact detection means for detecting the first contact with the contact detection means, and the reference position of the key arrangement corresponds to the contact position first contacted with the contact detection means. And a key arrangement expanding means for outputting the key arrangement to the display means, and a display having an input means suitable for a miniaturized information device device that displays the key arrangement at a position where the key can be easily input. An apparatus can be provided.

  Moreover, the information equipment apparatus of this invention has the structure provided with the display apparatus which has the said input means, and can provide the information equipment apparatus which displays a keyboard layout in the position where a key input is easy.

  Further, according to the driving method of the display device having the input unit of the present invention, when the first contact with the contact detection unit is detected, the key arrangement is displayed so that the reference position of the key arrangement corresponds to the contacted position. It is possible to provide a method for driving a display device that includes an input means for displaying a key arrangement at a position where key input is easy to be performed.

  Embodiments of the present invention will be described below with reference to the drawings.

(Embodiment 1)
FIG. 1 is a block diagram showing an information equipment device provided with a display device with a touch panel according to Embodiment 1 of the present invention.

In FIG. 1, an information equipment device including a display device 1 with a touch panel according to the present embodiment includes a display unit 2 that displays a display image such as characters and images, and a contact detection unit that is attached to the surface of the display unit 2. Touch panel 3, initial press detection unit 7 as initial contact detection means for detecting that the surface of touch panel 3 has been pressed for the first time, and input keys to be pressed via touch panel 3, such as numeric keys and arrow keys, for example. Based on the detection result of the key map storage unit 5 as the key arrangement storage unit storing the image information (key map) such as the key arrangement and the initial press detection unit 7, the key map storage unit 5 stores a predetermined key map. A key map developing unit 6 for reading out the key map, a mixing unit 4 for combining the key map read out by the key map developing unit 6 and the display image, a pressing point on the touch panel 3 and a key marker. A combination unit 8 for combining the location of the key map read from the group expansion unit 6, an I / O unit 9 for inputting / outputting information to / from the outside, a memory 11 for storing an operation program and the like, and an operation program It comprises a CPU to be executed and a bus 12 for connecting each part. In the present embodiment, the mixing unit 4 and the key map development unit 6 constitute a key arrangement development unit.

  Further, the display unit 2 displays a key map and other display images output from the mixing unit 4.

  The touch panel 3 is mounted on the surface of the display unit 2, has transparency, and outputs the coordinates of the pressing points on the display unit to the key map development unit 6, the initial press detection unit 7, and the coupling unit 8.

  The mixing unit 4 mixes the key map image output from the key map developing unit 6 and the input display image and outputs the mixed image to the display unit 2.

  The key map storage unit 5 stores a key map having a reference point in advance, and outputs a key map to the key map expansion unit 6 in response to a read request when the key map expansion unit 6 is requested to read the key map. .

  The key map development unit 6 reads the key map from the key map storage unit 5 when the first press detection unit 7 detects the first press, and reads the coordinates so that the coordinates output by the touch panel 3 coincide with the reference points of the key map. The key map is moved in the key map development unit 6, and an image of the moved key map is generated and output to the mixing unit 4. On the other hand, coordinates and values of each key on the moved key map are combined as a pair. To the unit 8.

  The initial press detection unit 7 detects that the touch panel 3 is pressed for the first time.

  Here, the first pressing means, for example, the first pressing after the function of the display device 1 with a touch panel is validated, or the first pressing after no pressing for a certain period of time.

  Further, when the display device with a touch panel 1 of the present embodiment is applied to a mobile phone, the first press means, for example, the first press after the mobile phone is turned on.

  Furthermore, when the display device with a touch panel 1 of the present embodiment is applied to a foldable mobile phone, the first press means, for example, the first press after opening the housing.

  The combination unit 8 outputs the key value corresponding to the pressed point from the coordinate of the paired key output from the key map developing unit 6 and the value of the key and the coordinate of the pressed point output from the touch panel 3.

  The I / O unit 9 includes an antenna (not shown), a microphone (not shown), a speaker and the like (not shown), receives information input from the outside of the information equipment device, and outputs information to the outside. .

  The memory 11 stores an operation program of an information device such as a mobile phone and information generated during execution of the operation program.

  The CPU 10 executes an operation program of the memory 11 in cooperation with the display device with a touch panel 1, the I / O unit 9, and the memory 11.

  The bus 12 connects the display device 1 with a touch panel, the I / O unit 9, the memory 11, and the CPU 10.

  FIG. 2 is a schematic diagram showing an example of a key map having a reference point stored in advance by the key map storage unit 5.

  FIG. 2 shows a key map 100 of a numeric keypad having keys “1” to “9”, “*”, “0”, and “#”. Each key has a key area indicated by a wavy line. For example, the area of the key “1” is the key area 103, the area of the key “2” is the key area 104, and so on.

  Each key area can be defined as a collection of vectors, that is, a collection of coordinates. For example, the key area 103 of the key “1” is defined by the vector collection 101.

  Further, the key map 100 has a reference point 102, and the reference point 102 is a reference point for moving the key map 100.

  In the key map 100 of FIG. 2, the reference point 102 is set on the character “5” on the key area 107. In general, in the numeric keypad, the “5” key is provided with a protrusion so that the “5” key can be found by the touch of the fingertip. In other words, the “5” key has been generally recognized as a reference key, and providing the reference point 102 on the character “5” in the key map 100 is compatible with the general recognition. Is expensive. However, in the present invention, the reference point 102 is not limited to the character “5”.

  The characters “1” to “9”, “*”, “0”, and “#” indicated by solid lines are displayed on the display unit 2 as images of the key map 100, but the keys indicated by the wavy lines are displayed. The area 103 to the key area 114 are not displayed on the display unit 2.

  Further, in the key map 100 shown in FIG. 2, the key areas 103 to 114 are quadrangular and are not displayed. However, the present invention is not limited to the quadrilateral, and may be any shape such as a circle or an ellipse. The key area may be displayed.

  FIG. 3 is a front view showing an external appearance of a main part of a mobile phone as an information equipment device to which the display device with a touch panel 1 of the present embodiment is applied. FIGS. 3 (a) to 3 (c) The external appearance state of the mobile phone which changes as the display device with a touch panel 1 of the embodiment operates is shown.

  In FIG. 3, the touch panel 3 is mounted on the surface of the display unit 2.

  A display image area 201 on the display unit 2 indicates an area in which a display image that is mixed by the mixing unit 4 and is not a key map is displayed.

  Further, the pressing point 202 indicates a portion pressed by a finger or the like.

  FIG. 3A is a front view showing the appearance of the mobile phone before the display device 1 with a touch panel according to the present embodiment starts its operation, and the key map 100 is not displayed on the display unit 2.

  Further, as shown in FIG. 3A, in the present embodiment, the display image area 201 occupies most of the display unit 2.

  FIG. 3B is a front view showing the appearance of the mobile phone in which the key map 100 is displayed on the display unit 2 by the first press.

  FIG. 3C shows the appearance of the mobile phone when the position “0” is pressed on the touch panel 3 when the key map 100 is displayed on the display unit 2 as shown in FIG. FIG.

  Next, operation | movement of the display apparatus 1 with a touchscreen of this Embodiment is demonstrated.

  FIG. 4 is a flowchart showing the operation of the display device with a touch panel 1 of the present embodiment.

  Operation | movement of the display apparatus 1 with a touchscreen of this Embodiment is demonstrated using FIG.1, FIG.2, FIG.3 along the flowchart of FIG.

  Before the operation is started, the key map 100 is not displayed on the display unit 2 as shown in FIG. Next, when the display device with a touch panel 1 according to the present embodiment starts to operate, for example, when the power is turned on (S001), the initial press detection unit 7 detects the initial press and develops the key map as the initial press. Notification to the unit 6 (S002).

  Next, the key map development unit 6 reads the key map 100 from the key map storage unit 5 (S003), and the key map development unit 6 obtains the coordinates of the initial pressing point output from the touch panel 3 and the reference point 102 of the key map 100. The read key map 100 is moved in the key map development unit 6 so as to match, and the display position on the display unit 2 is adjusted (S004).

  For example, the coordinates of the reference point 102, that is, the vector of the reference point 102 is subtracted from the coordinates of the initial pressing point, that is, the vector of the initial pressing point, and the difference difference vector and the vector constituting the key map 100 are added. As a result, the key map 100 is moved within the key map development unit 6 and the display position on the display unit 2 is adjusted.

  Next, the key map development unit 6 generates an image of the moved key map 100 and outputs the generated image to the mixing unit 4. On the other hand, for the key on the moved key map 100, the coordinate unit and the key value are paired and the combining unit 8. (S005). The mixing unit 4 to which the image of the key map 100 is input mixes the image of the key map 100 and the input display image and outputs the mixed image to the display unit 2, and the display unit 2 to which the mixed image is input from the mixing unit 4 The input image, that is, the composite image of the display image and the key map 100 image is displayed.

  For example, if the first pressing point is the location of the pressing point 202 shown in FIG. 3B, the key map 100 is moved so that the pressing point 202 and the reference point 102 of the key map 100 coincide in S004. The display position is adjusted, and the key map 100 moved in S005 is output to the mixing unit 4, and the image mixed by the mixing unit 4 is displayed on the display unit 2. Therefore, as shown in FIG. The key map 100 is displayed so that the point 202 matches the key “5”.

  The person who presses against the display device with a touch panel 1 of the present embodiment presses the touch panel 3 based on the key map 100 displayed on the display unit 2 in S005. For example, as shown in FIG. 3C, the person who presses presses the position “0” on the touch panel 3 based on the displayed key map 100.

Next, the combining unit 8 outputs the key value corresponding to the pressed point from the key coordinates and key values output from the key map developing unit 6 and the pressed point coordinates output from the touch panel 3 (S006).
.

  For example, as illustrated in FIG. 3C, when the position “0” on the touch panel 3 is pressed, the touch panel 3 outputs the coordinates of the position “0” to the coupling unit 8. The combining unit 8 searches for the coordinate of the key output by the key map development unit 6 that matches the coordinate of the position “0” output by the touch panel 3, and the value of the key corresponding to the coordinate of the matching key, that is, “0”. Is output.

  As described above, the series of operations relating to the recognition of the pressing point in the display device with a touch panel 1 of the present embodiment is completed (S007).

  On the other hand, the CPU 10 executes an operation program of an information device such as a mobile phone stored in the memory 11 in cooperation with the display device with a touch panel 1, the I / O unit 9, and the memory 11. That is, when the operation program stored in the memory 11 is an operation program for realizing a mobile phone as an information device, the CPU 10 stores the telephone number input from the display device with the touch panel in the memory 11 while mixing the mixing unit 4. The telephone number is displayed on the display unit 2 via. Further, the CPU 10 wirelessly connects to the base station via the I / O unit 9 based on the input telephone number, and emits sound data received via the wireless connection through the speaker of the I / O unit 9. The voice data collected by the microphone of the I / O unit 9 is transmitted to the base station via a wireless connection.

  As described above, when the display device with a touch panel 1 according to the present embodiment is applied to an information device such as a mobile phone that has been miniaturized, the key map is such that the initial pressing point and the key map reference point coincide. By pressing the key map against the displayed key map and entering a key, for example, if you first hold it with the thumb of the dominant hand while holding it with the dominant hand, the key map will be displayed at a position where you can easily enter the key with the thumb of the dominant hand. The key map displayed can be pressed against the displayed key map.

  In addition, even if it is not only a thumb but another finger | toe, a key map is displayed on the position where it is easy to press with another finger, and there exists an effect which can be pressed with respect to the displayed key map.

  In addition, since the display device with a touch panel 1 according to the present embodiment displays a key map in response to an initial press, the key map can be displayed immediately when a key is input, and the key map can be pressed immediately. Play.

  Note that the mixing unit 4 mixes the image of the key map 100 output from the key map development unit 6 and the input display image and outputs them to the display unit 2 as shown in FIGS. 3B and 3C. In addition, the mixing unit 4 may mix the image of the key map 100 and the display image so that the display image region 201 and the key map 100 do not overlap. In the display unit 2 where the touch panel 3 is installed on the surface, an area where the key map 100 is displayed is an area for pressing with a fingertip or the like. That is, each time the fingertip or the like is pressed, the finger or the like blocks the display unit 2, so the area where the key map 100 is displayed is not appropriate as the display image area 201 for displaying an image. The mixing unit 4 can provide the display image region 201 with good visibility by mixing the image of the key map 100 and the display image so that the display image region 201 and the key map 100 do not overlap.

  In S004 of FIG. 4, when the key map 100 is moved in the key map development unit 6 and the display position on the display unit 2 is adjusted so that the coordinates of the initial pressing point coincide with the reference point 102, the initial pressing point is adjusted. When the point is around the display unit 2 (for example, a peripheral part), the key map 100 is positioned at the periphery of the display unit 2 near the initial pressing point regardless of the position of the reference point 102. The display position of the key map 100 may be adjusted by moving within the map development unit 6. For example, when the initial pressing point is the lower left peripheral portion of the display unit 2, adjustment is performed so that the left side and the lower side of the key map 100 are positioned on the left side and the lower side of the display unit 2.

  When the key map 100 is simply moved within the key map development unit 6 and the display position on the display unit 2 is adjusted so that the coordinates of the initial pressing point and the reference point 102 coincide with each other, the initial pressing point is located around the display unit 2 (for example, ), The reference point 102 is located in the periphery (for example, the periphery) of the display unit 2, and the entire key map 100 cannot be displayed on the display unit 2, and is displayed. Unable to press keys that are not. However, as described above, when the initial pressing point is around the display unit 2, the key map 100 moves in the key map developing unit 6 so that the key map 100 is located in the peripheral part of the display unit 2 near the initial pressing point. By adjusting the display position of the key map 100, the entire key map 100 can be displayed on the display unit 2 regardless of the position of the reference point 102, and a key of the displayed key map 100 is pressed. Can do.

(Embodiment 2)
FIG. 5 is a schematic diagram showing a key map 300 having keys of “up”, “down”, “left”, “right”, and “select”.

  The key “up” has a key area 303 which is an upward triangle, the key “down” has a key area 304 which is a downward triangle, the key “left” has a key area 305 which is a left triangle, and the key “ “Right” has a key area 306 that is a triangle pointing to the right, and the key “Select” has a key area 307 that is a circle.

  Also in the key map 300, the key area can be defined as a collection of vectors, that is, a collection of coordinates. For example, the key area 43 of the key “above” is defined by the collection 301 of vectors. Further, the key map 300 has a reference point 302, and the reference point 302 is a reference point for moving the key map 300.

  Key areas 303 to 307 indicated by solid lines are displayed on the display unit 2 as images of the key map 300.

  FIG. 6 is a front view showing the appearance of the mobile phone of the display device with a touch panel 1 of the present embodiment using the key map 300. FIGS. 6 (a) to 6 (c) show the present embodiment. The appearance of a mobile phone that changes as the display device with a touch panel 1 operates is shown.

  In FIG. 6, the touch panel 3 is installed on the surface of the display unit 2. A display image area 401 is an area where a display image mixed by the mixing unit 4 shown in FIG. 1 is displayed. Further, the pressing point 402 indicates a point pressed by a finger or the like.

  The configuration and operation of the display device with a touch panel in the present embodiment are the same as those of the display device with a touch panel in the first embodiment shown in FIGS.

  The operation of the display device with a touch panel 1 according to the present embodiment will be described with reference to the flowchart of FIG. 4 and FIGS. 1, 5, and 6. FIG.

  Before the operation is started, the key map 300 is not displayed on the display unit 2 as shown in FIG.

  Next, when the display device with a touch panel 1 according to the present embodiment starts operation by turning on the power (S001), the initial press detection unit 7 detects the initial press, and the key map is developed to indicate the initial press. Notification to the unit 6 (S002).

Next, the key map development unit 6 reads the key map 300 from the key map storage unit 5 (S
003), the key map development unit 6 moves the read key map 300 in the key map development unit 6 so that the coordinates of the initial pressing point output from the touch panel 3 and the reference point 302 of the key map 300 coincide with each other. The display position on the unit 2 is adjusted (S004).

  Next, the key map development unit 6 generates an image of the moved key map 300 and outputs the generated image to the mixing unit 4. On the other hand, for the keys on the moved key map 300, the coordinate unit and the key value are paired and the combining unit 8. (S005). The mixing unit 4 to which the image of the key map 300 is input mixes the image of the key map 300 and the input display image and outputs the mixed image to the display unit 2, and the display unit 2 to which the mixed image is input from the mixing unit 4 The input image, that is, the display image and the key map 300 also displays an image obtained by combining the images.

  For example, if the initial pressing point is the location of the pressing point 402 shown in FIG. 6B, the key map 300 is moved so that the pressing point 402 and the reference point 302 of the key map 300 coincide in S004. The display position is adjusted, and the key map 300 moved in S005 is output to the mixing unit 4, and the image mixed by the mixing unit 4 is displayed on the display unit 2. Therefore, as shown in FIG. The key map 300 is displayed so that the point 402 and the key “select” match.

  The person who presses against the display device with a touch panel 1 of the present embodiment presses the touch panel 3 based on the key map 300 displayed on the display unit 2 in S005. For example, as shown in FIG. 6C, the person who presses presses the “right” position on the touch panel 3 based on the displayed key map.

  Next, the combining unit 8 outputs the key value corresponding to the pressed point from the key coordinates and key values output by the key map developing unit 6 and the pressed point coordinates output by the touch panel 3 (S006).

  For example, as shown in FIG. 6C, when the “right” position on the touch panel 3 is pressed, the touch panel 3 outputs the coordinates of the “right” position to the combining unit 8. The combining unit 8 searches for the coordinates of the key output by the key map development unit 6 that matches the coordinates of the “right” position output by the touch panel 3, and the value of the key corresponding to the coordinate of the matching key, that is, “right” Is output.

  As described above, the series of operations relating to the recognition of the pressing point in the display device with a touch panel 1 of the present embodiment is completed (S007).

  As described above, also in the present embodiment, as in the first embodiment, the key map can be displayed at a position where key input is easy, and the key input can be performed immediately after the first press.

  In each of the above embodiments, a mobile phone has been described as an example of an information device, but the information device of the present invention is not limited to a mobile phone.

  In other words, the information equipment device of the present invention may be any information equipment device equipped with the display device with a touch panel described in each embodiment, and may be a portable terminal, PDA, game device, television, or the like equipped with a display device with a touch panel. Including the remote control of the DVD player and the like, the same effects as described in each embodiment are achieved.

  As described above, the display device with a touch panel and the information device of the present invention are useful as a small information device such as a mobile phone or a PDA because it is easy to perform key input with a finger while being held by hand.

Configuration diagram showing a display device with a touch panel according to Embodiment 1 and Embodiment 2 of the present invention Schematic diagram showing a key map 100 according to the first embodiment of the present invention. (A) Front view of a mobile phone to which the display device with a touch panel 1 before the start of operation in Embodiment 1 of the present invention is applied (b) Front view of the mobile phone to which the display device with a touch panel 1 is applied at the same initial pressing ( c) Front view of a mobile phone to which the display device with a touch panel 1 is applied after the key map 100 is displayed. The flowchart which shows operation | movement of the display apparatus 1 with a touch panel in Embodiment 1 of this invention. Schematic diagram showing a key map 300 according to Embodiment 2 of the present invention. (A) Front view of a mobile phone to which the display device with a touch panel 1 before the start of operation in Embodiment 2 of the present invention is applied (b) Front view of the mobile phone to which the display device with a touch panel 1 is applied at the same initial pressing ( c) Front view of a mobile phone to which the display device with a touch panel 1 is applied after the key map 300 is displayed.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Display apparatus with a touch panel 2 Display part 3 Touch panel 4 Mixing part 5 Key map memory | storage part 6 Key map expansion | deployment part 7 Initial press detection part 8 Connection part 100,300 Key map 102,302 Reference point 201,401 Display area 202,402 Press point

Claims (3)

A light detecting contact detecting means provided corresponding to the display means, an initial contact detecting means for detecting the first contact with the contact detecting means, and a key arrangement storage in which a key arrangement of input keys is stored. And when the first contact is detected by the first contact detection means, the key arrangement is read from the key arrangement storage means, the contact position of the first contact in the contact detection means, and the reference position of the key arrangement The key arrangement expanding means for outputting the read key arrangement to the display means and outputting the position and value of each input key of the read key arrangement, and the contact detection means A table having input means comprising: coupling means for outputting a value of the input key corresponding to the contact position at the contact detection means from the key arrangement expanding means based on the contact position; Apparatus. An information equipment device comprising a display device having the input means according to claim 1. A step of reading the key arrangement from the key arrangement storage means in which the key arrangement of the input keys is stored when detecting the first contact with the light-transmitting contact detection means provided corresponding to the display means; A step of outputting the read key arrangement to the display means so that a contact position of the first contact in the contact detection means corresponds to a reference position of the key arrangement; and each input of the read key arrangement An input unit comprising: a step of outputting a key position and value; and a step of outputting a value of the input key corresponding to the contact position of the contact detection unit based on the contact position of the contact detection unit. A driving method of a display device.

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