JP4818036B2 - Touch panel control device and touch panel control method - Google Patents

Description

  The present invention relates to a touch panel control device and a touch panel control method for detecting a touch position of a touch panel arranged on a display screen for displaying an image, and in particular, a touch panel used for an in-vehicle electronic device or a portable electronic device. In addition, when there is a restriction on the size of the display screen and the operation buttons displayed on the touch panel are small and close to each other, it is easy to select the operation buttons. The present invention relates to a touch panel control device and a touch panel control method for enlarging and displaying an operation button within a predetermined range when a touch operation on the operation button is detected.

  Recently, various small electronic devices such as an in-car car navigation device, an audio device, a DVD playback device, and a television device, or a portable information processing device, a game machine, and a music player device have been provided. Further, such an electronic device tends to be provided as a composite electronic device in which electronic devices having various functions as described above are combined.

  In these electronic devices, the display unit has a touch panel function for operating devices and selecting their functions, displaying various operation buttons on the display screen, and pressing the desired operation buttons with a finger. It is configured to operate the equipment. Such operation buttons are generally called soft keys in contrast to mechanical keys and buttons provided in electronic devices, so-called hard keys.

  A display unit having such a touch panel function displays an operation button (soft key) on the display screen, and when the user touches the button position on the touch panel (display screen), the touch panel controller touches the button. The coordinates of the position are detected and it is determined that the button is pressed.

  By the way, in a small electronic device, since the display unit is also relatively small, the size of each soft key displayed on the display screen of the display unit having a touch panel function is restricted, resulting in a small key display. In addition, since the functions of the electronic device tend to be complex and complex, the number of displayed soft keys also increases. If the number of soft keys to be displayed is increased, the display size of each soft key is further reduced.

  For this reason, when a user performs an operation of discriminating a plurality of soft keys displayed on the display screen and selecting a desired soft key, it becomes difficult to accurately press the corresponding key with a finger. There was a case where a soft key was operated.

  Various methods for dealing with such problems have been proposed. For example, there is a method disclosed as a touch panel control device in the following Patent Document 1 (Japanese Patent Laid-Open No. 8-185265). The touch panel control device disclosed in Patent Document 1 displays an area around the touched position in an enlarged manner when the touch panel is touched with a fingertip, and allows the user to input accurately by touching a desired button again in that state. ing.

That is, as shown in FIG. 5, the touch panel control device includes a display unit 11, a touch panel 12, a coordinate detection unit 13 that detects coordinates on the display screen instructed based on information from the touch panel 12, and the display unit 11. The touch panel control device includes a display unit corresponding to the detected coordinates or an input processing unit 14 for inputting data corresponding to the display data. The input processing unit 14 is a touch panel. The display data displayed in a predetermined range centered on the coordinates detected by the coordinate detection unit 13 by pressing is enlarged and the coordinate range specifying the display data is changed according to the expansion of the display data, The display data corresponding to the next coordinate detected at the time of the enlarged display is searched and input based on the coordinate range.
JP-A-8-185265 (FIG. 1)

  However, in the touch panel control device disclosed in Patent Document 1, when the button of the part touched by pressing the touch panel is enlarged, the center button is displayed in full, but the left, right, upper, lower, left upper and lower buttons are one. Since only the part is displayed, there is a problem that it is difficult to know which button is displayed, and it is necessary to operate the shift key in order to display the next button.

  The inventor of the present application has conducted various studies to solve the above problems, and as a result, in the touch panel control device, in order to facilitate the selection operation of the operation button, a touch operation to an arbitrary operation button is detected. Then, if the selection buttons around the touch coordinates are rearranged so that each selection button is displayed in full, and the enlarged display is made, what buttons are around the selection buttons without operating the shift key? The present invention has been completed with the idea that it can be found and the buttons can be operated accurately.

  That is, the present invention has an object to solve the above problems, and a touch panel control device capable of improving the operability while enabling accurate input even when a large number of selection buttons are displayed on a small screen. It is another object of the present invention to provide a touch panel control method.

In order to solve the above-mentioned problem, the invention according to claim 1 of the present application is
Displays a selection button on the display screen, a motor touch panel control device for detecting the touch coordinates of the finger on the touch panel disposed on the display screen,
When the touch panel is touched with a finger while a plurality of selection buttons are displayed on the display screen, the selection buttons around the touch coordinates are rearranged so that each selection button is fully displayed and enlarged. In addition, the selection button at the touch coordinates is displayed so as to be distinguishable from other selection buttons .

The invention according to claim 2 of the present application is the touch panel control device according to claim 1, wherein when the touch panel is touched with a finger in a state where a plurality of selection buttons are displayed on the display screen , the touch panel control device is in the vicinity of the touch coordinates. the selection button, with the expansion and displays the selection buttons are re-arranged to be fully displayed, the selection button on the touch coordinates and displays the emphasized distinguishable from other selection buttons, again fingers then touch When the touch button is touched, it is determined that the selection button at the touch coordinates is pressed .

The invention according to claim 3 is
Displays a selection button on the display screen, a motor touch panel control method of detecting the touch coordinates of the finger on the touch panel disposed on the display screen,
When the touch panel is touched with a finger while a plurality of selection buttons are displayed on the display screen, the selection buttons around the touch coordinates are rearranged so that each selection button is fully displayed and enlarged. In addition, the selection button at the touch coordinates is displayed so as to be distinguishable from other selection buttons .

The invention according to claim 4 of the present application is the touch panel control method according to claim 3 , wherein when the touch panel is touched with a finger in a state where a plurality of selection buttons are displayed on the display screen, the touch coordinate is displayed around the touch coordinates. A selection button is rearranged and enlarged so that each selection button is displayed in full, and the selection button at the touch coordinates is highlighted so as to be distinguishable from the other selection buttons, and then the touch panel is displayed again. When touched with a finger, it is determined that the selection button at the touch coordinates is pressed .

  The touch panel control device and the touch panel control method of the present invention have the following effects.

That is, in the invention according to claim 1 and claim 3, when the touch panel is touched with a finger while a plurality of selection buttons are displayed on the display screen, the selection buttons around the touch coordinates are selected. The buttons are rearranged so that the buttons are displayed in full, and enlarged , and the selection buttons at the touch coordinates are displayed so as to be distinguishable from other selection buttons . As a result, even if a large number of selection buttons are displayed on a small screen, accurate input is possible, and it is possible to know what selection buttons are in the vicinity without operating the shift key, and which selection buttons It is possible to easily determine whether or not is pressed, and the operability can be improved.

Further, in the invention according to claim 2 and claim 4, in the touch panel control device according to claim 1 or the touch panel control method according to claim 3, when the touch panel is touched with a finger, around the touch coordinates. A selection button is rearranged and enlarged so that each selection button is displayed in full, and the selection button at the touch coordinates is highlighted to be distinguishable from the other selection buttons, and then the touch panel is displayed. When it is touched again with a finger, it is determined that the selection button at the touch coordinates is pressed, so that the operability can be improved.

  Hereinafter, specific examples of the present invention will be described in detail with reference to examples and drawings. FIG. 1 is a diagram for explaining a touch panel operation in the touch panel control device of the present invention, and FIGS. 1 (a) to 1 (c) are diagrams each showing a transition of a display image. 2 is a diagram showing the structure of the touch panel, FIG. 3 is a block diagram of the touch panel control device, and FIG. 4 is a flowchart showing the processing of the touch panel control device of the present invention.

  However, the embodiment shown below exemplifies a touch panel control device for embodying the technical idea of the present invention, and is not intended to identify the present invention as this touch panel control device. The present invention is equally applicable to touch panel control devices of other embodiments included in the scope of claims.

  FIG. 2 is a diagram illustrating the structure of the touch panel used in the touch panel control device according to the embodiment of the present invention. A transparent touch panel 5 having a predetermined positional relationship is disposed on the surface of the liquid crystal display 4 for displaying an image. On the surface of the touch panel 5, a large number of X-axis electrode lines 6 are provided in parallel in the horizontal direction, and Y-axis electrode lines 7 are provided in parallel in the vertical direction.

  When the X-axis electrode line 6 and the Y-axis electrode line 7 are touched with a finger, a voltage drop occurs. Based on the positions of the X-axis electrode line 6 and the Y-axis electrode line 7 where the voltage drop occurs, Detects whether a finger is touching the position. For example, when there is a voltage drop in each of the X-axis electrode line 6 and the Y-axis electrode line 7, the intersection of the middle electrode line is set as the finger touch position.

  FIG. 3 is a block diagram illustrating a configuration of the touch panel control device according to the embodiment of the present invention. The liquid crystal display control unit 8 performs an image drawing process to be displayed on the liquid crystal display 4 in response to a command from the CPU 10. The touch panel control unit 9 detects the voltage drop of the X-axis electrode line 6 and the Y-axis electrode line 7, calculates the position coordinates where the finger is touching on the touch panel 5, and inputs them to the CPU 10.

  The configuration of the touch panel control apparatus according to the embodiment of the present invention is as described above. Next, the operation of the touch panel control apparatus will be described. In the touch panel control device of the present invention, when the touch panel 5 is touched with a finger in a state where a plurality of selection buttons 2 are displayed on the display screen 1 including the liquid crystal display 4 and the touch panel 5 as shown in FIG. The selection button 2 around the finger contact portion 3 is enlarged and displayed as shown in FIG.

  At that time, in the touch panel control device disclosed in Patent Document 1, the button located at the center of the touched portion is displayed in full, but the left, right, up, down, left and up buttons are only partially displayed. . On the other hand, in the present invention, as shown in FIG. 1B, the selection buttons around the touch coordinates are rearranged so that each selection button is displayed in full, and displayed enlarged. In such an enlarged state, the user once lifts the finger from the touch panel 5 and then moves the finger to the button “A” that is the selection button 2 to be touched as shown in FIG. Touch with. At that time, the CPU 10 selects “A” based on the coordinate data input from the touch panel control unit 9 and touched by the finger and the display position of the selection button 2 displayed in an enlarged manner by the liquid crystal display control unit 8. It is determined that the button has been pressed.

  When the touch panel 5 is touched with a finger, the selection button at the touch position coordinate determined by the touch panel control unit 9 is selected and displayed in a state that can be distinguished from other selection buttons. For example, the selection button is highlighted and displayed with a color different from other selection buttons or a different density. By doing so, it is preferable that which selection button is pressed can be easily determined, and the operation by the user can be performed more accurately.

  Next, processing of the touch panel control device of the present invention will be described with reference to the flowchart shown in FIG. First, a selection button group is displayed on the liquid crystal display 4 (step S1), and it is determined whether or not the touch panel 5 is touched, that is, whether or not the button is pressed (step S2). As a result, if the button is pressed, the pressed position coordinates are acquired from the touch panel control unit 9 (step S3), and the selection buttons around the pressed position coordinates are displayed in full. The images are rearranged so as to be enlarged (step S4).

  Next, it is determined whether or not the button has been pressed again (step S5). If the button has been pressed, the pressed position coordinates are acquired from the touch panel control unit 9 (step S6), and the pressed position is determined. It is determined that the selection button displayed at the coordinate is selected, and the device executes the function assigned to the button (step S7).

It is a figure for demonstrating the touchscreen operation in the touchscreen control apparatus of this invention, and FIG.1 (a)-FIG.1 (c) are the figures which show the transition of a display image, respectively. It is a figure which shows the structure of the touchscreen used for the touchscreen control apparatus of this invention. It is a block diagram which shows the structure of the touchscreen control apparatus of this invention. It is a flowchart which shows the process sequence of the touchscreen control apparatus of this invention. It is a block diagram which shows the structure of the conventional touch panel control apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Display screen 2 ... Selection button 3 ... Finger contact part 4 ... Liquid crystal display 5 ... Touch panel 6 ... X-axis electrode line 7 ... Y Axis electrode line 8 ... Liquid crystal display controller 9 ... Touch panel controller 10 ... CPU

Claims (4)

Displays a selection button on the display screen, a motor touch panel control device for detecting the touch coordinates of the finger on the touch panel disposed on the display screen,
When the touch panel is touched with a finger while a plurality of selection buttons are displayed on the display screen, the selection buttons around the touch coordinates are rearranged so that each selection button is fully displayed and enlarged. In addition, the touch panel control device is characterized in that the selection button at the touch coordinates is displayed so as to be distinguishable from other selection buttons . When the touch panel is touched with a finger while a plurality of selection buttons are displayed on the display screen, the selection buttons around the touch coordinates are rearranged so that each selection button is fully displayed and enlarged. In addition, the selection button at the touch coordinates is highlighted so as to be distinguishable from other selection buttons, and then when the touch panel is touched again with a finger, it is determined that the selection button at the touch coordinates has been pressed. The touch panel control device according to claim 1. Displays a selection button on the display screen, a motor touch panel control method of detecting the touch coordinates of the finger on the touch panel disposed on the display screen,
When the touch panel is touched with a finger while a plurality of selection buttons are displayed on the display screen, the selection buttons around the touch coordinates are rearranged so that each selection button is fully displayed and enlarged. In addition, the touch panel control method is characterized in that the selection button at the touch coordinates is displayed so as to be distinguishable from other selection buttons . When the touch panel is touched with a finger while a plurality of selection buttons are displayed on the display screen, the selection buttons around the touch coordinates are rearranged so that each selection button is fully displayed and enlarged. In addition, the selection button at the touch coordinates is highlighted so as to be distinguishable from other selection buttons, and then when the touch panel is touched again with a finger, it is determined that the selection button at the touch coordinates has been pressed. The touch panel control method according to claim 3, wherein:

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