JP2011154664A - Handwriting ink display method and device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To facilitate writing a character with a finger in an apparatus having a display-integrated pointing device that is operated with a finger (Fig.1 shows an example of a personal digital assistant with the apparatus). <P>SOLUTION: In the apparatus having a display-integrated pointing device that is operated with a finger, a display position of a handwriting ink when a character is written with a finger is displaced from a position calculated by the device as a position in contact with the finger. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

      The present invention improves the visibility of handwritten ink by displaying the display position of handwritten ink when writing characters etc. with a finger at an appropriate position in an apparatus having a display-integrated pointing device operated by a finger. This makes it easier to write characters.

      Conventionally used portable information terminals (hereinafter referred to as PDA: “Personal Digital Assistants”) “Zaurus, Windows-CE terminals, etc.” and smartphones (PDA and mobile phones that have rapidly expanded in recent years) Mobile information terminals) "Apple's iPhone, Microsoft's Windows phone, etc.", these mobile information terminals are operated by touching the screen directly with a pen or finger instead of operating with a keyboard and mouse as with an ordinary personal computer. Most of them do.

      In order to operate by directly touching the screen (most of them are liquid crystal display screens), the front and back surfaces of the screen are crafted to detect which part of the screen is touched by a pen or a finger.

      The most commonly used method for detecting the screen contact position is the resistive film method. Two thin transparent spheres sandwiching minute insulating spheres arranged in a lattice called dot spacers on the screen are used. This is a method in which a conductive film is pasted and pressure is applied to an arbitrary place with a pen or a finger so that the two films come into contact with each other and are energized.

      This method has no problem when operating with a thin object such as a pen, but if it has a certain contact area such as a finger, the dot spacer between the films will interfere and the position can be detected well. There may not be.

      Recently, the number of methods that can be operated with a finger has increased. This is because the mobile information terminal can be taken out of the pocket and immediately smartly operated (no need to take out the pen). This finger operation method uses a position detection method such as a capacitance method.

      This method is a method of detecting a position by sticking a thin transparent film on a screen and calculating a change in electric capacitance caused by a finger touching the film. When the finger touches the normal finger, the area around the center where the finger touches the screen is calculated as the position touched by the finger.

      The calculation position is written around the center of the surface where the finger is in contact with the screen, but there are several methods such as the method of calculating the center of gravity of the contact surface and the method of calculating the center point of the rectangle circumscribing the contact surface. There is a method, but since all calculate the center of the belly of the finger that is in contact, the difference in this method is not relevant to the description of the present invention.

      In addition, there are other methods such as an optical sensor method. In order to input handwritten characters and the like using a pointing device of these methods, an apparatus in which these pointing devices and a display device such as an LCD are integrated is usually used. It is done. Such an apparatus is called a display-integrated pointing device.

      When this display-integrated pointing device is used as an input display device such as a portable information terminal, icons displayed on the screen (menu items and objects to be manipulated expressed with small pictures, symbols, illustrations, etc.) This is used to select by touching with a finger or to input handwritten characters.

      When inputting these handwritten characters, etc., move the finger while touching the screen and write the character. At that time, the finger moves while touching the screen in the same way as when writing a character with a ballpoint pen on paper. When this happens, the line is often displayed like ink on the part. This is called handwriting ink. The writer looks at it and writes the character while receiving feedback from the character shape. .

      This method of operating with a finger is not a problem for selecting an icon on the screen, but when writing characters on the screen, not only the handwriting ink is hidden by the finger as shown in FIG. There is a problem that it is difficult to write because the position at the beginning of writing is hidden behind the finger and cannot be seen.

      When a person writes a character, he / she writes while looking at the line he / she wrote (handwriting ink) and receiving the character shape feedback from the handwriting, especially when starting to write a line, the position of the starting point If it cannot be clearly seen, the balance of the positional relationship of the lines that make up the character will be poor, and writing will be very difficult.

      As illustrated in the figure, normally, when writing with a finger, the handwriting ink is displayed from the center of the belly of the finger as described above, as shown in FIG. Even if is displayed, the handwriting ink is hidden by the finger. Furthermore, the writer cannot visually confirm the display position of the handwritten ink at the beginning of writing.

      As a result, for parts hidden by fingers, writing will be performed without visual feedback of handwriting ink, and the balance of characters will be lost or the position of intersections will be shifted, resulting in unbalanced characters. For small characters that are likely to be hidden by the finger, the fingertip can be moved without looking at the ink.

      If you put your finger up and write only with the tip of your finger, you may think that there is no problem with the visibility of the handwritten ink. There is a problem that the contact of the finger is not recognized, and if the nail is as long as possible, it is impossible to touch only the fingertip.

      In order to solve the above-mentioned problem, the present invention described in claim 1 is configured so that the handwriting ink conventionally displayed from the center of the belly of the finger touching the screen is written on the upper left when writing with the right hand. When writing with the left hand, the display of the handwriting ink is intentionally shifted on the upper right so that the display position of the handwriting ink is hidden by the finger as much as possible, the visibility of the handwriting ink is improved, and characters are written. It is a method to make it easier.

      The present invention described in claim 2 displays the handwriting ink of the finger touching the screen by shifting the display of the handwriting ink on the upper left when writing with the right hand and on the upper right when writing with the left hand. By doing so, the handwriting ink is prevented from being hidden with a finger as much as possible, the visibility of the display position of the handwriting ink is improved, and the display device facilitates writing of characters.

      The feature of the present invention is that it greatly improves the visibility of the display position of handwritten ink that has been hidden by the finger and cannot be visually recognized, making it easier to write characters and writing small characters that could not be drawn conventionally. This makes it easy to understand the position of the line writing, so that it is easy to balance the writing characters, and it is possible to write beautiful characters with fingers.

      In addition, by using it as an input method for handwritten signature verification technology (for example, cyber sign technology from Witzel Corporation), it is easy to write characters, so the rhythm of writing and the shape of characters are stable, and handwritten signature verification technology Contributes to improved accuracy.

      FIG. 3 shows an example in which a right-handed writer writes with the index finger of the right hand. Compared with the standard handwriting ink display position in FIG. 2, it can be seen that the display of the handwriting ink is shifted in the upper left direction, so that the right-handed person sees the handwriting ink from the left side of the right index finger. Therefore, the visibility is improved.

      3A is a diagram showing a positional relationship of handwriting ink, and b is a diagram showing a state where the handwriting ink is actually visible. The relationship between a and b is the same in FIGS.

      FIG. 4 shows an example in which a left-handed writer writes with the index finger of the left hand. The area of the handwritten ink that is hidden and invisible after writing is larger than the standard example in FIG. 2 (this may occur even when optimized for right-handed use). Knowing where you will start writing and where you are writing has a greater impact on writing characters than ink, so in this case too, the visibility of the display position of handwritten ink will be better. The invention is effective.

      The present invention shifts the display of the handwriting ink by an appropriate amount in a direction that makes it easy for the writer to visually recognize the handwriting ink. This means that it is necessary to change the direction in which the handwriting ink is shifted depending on whether the writer writes with the right hand or the left hand, so it is desirable that the dominant hand of the writer can be set.

      In addition, since there are individual differences in visibility, it is desirable that the amount and direction of shifting can be set according to personal preference. For example, if you are a right-handed person, you can basically shift it in the upper left direction, but you should be able to set the amount of movement in the left direction and the amount of movement in the upward direction separately. It ’s good.

      In addition, although it has been described that the selection of an icon has no problem even at the center of the belly of the finger, it may be easier to operate the icon by shifting the pointing position depending on personal preference.

  It is an example which shows the structure of the portable information terminal which mounts the display integrated pointing device operated with a finger | toe concerning embodiment of this invention.   It is an example of the display of handwriting ink in the case of a standard handwriting ink display position, and visibility.   It is an example of the display and the visibility of handwritten ink when optimized for the right hand.   It is an example of display and visibility of handwritten ink when optimized for the left hand.

DESCRIPTION OF SYMBOLS 1 Mobile information terminal operated with finger 2 Display surface with finger position detection device 3 Writers' finger 4 Handwriting ink display 5 Standard handwriting ink display position 6 Handwriting ink display optimized for right hand Position 7 Handwritten ink display position optimized for left hand

Claims (2)

      In a device having a display-integrated pointing device operated by a finger, the device displays the handwriting ink display position when writing characters, etc. as the position where the finger touches the handwriting ink at a position where the handwriting ink is easily visible The handwritten ink display method, wherein the display is shifted from the position calculated by.       In a device having a display-integrated pointing device operated by a finger, the device displays the handwriting ink display position when writing characters, etc. as the position where the finger touches the handwriting ink at a position where the handwriting ink is easily visible The handwritten ink display device is characterized in that the display is shifted from the position calculated by.

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