JP2009193325A - Display device, image forming apparatus and image processing apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an display device allowing an operator to set at least one of longitudinal magnification and lateral magnification of a character appropriate to the operator without taking trouble, and to provide an image forming apparatus and an image processing apparatus with the same. <P>SOLUTION: The display device 10 includes a display part 1, and a character magnification setting part 3 setting at least one of the longitudinal magnification and the lateral magnification M(i) of the character M displayed on the display part 1. The character magnification setting part 3 makes the display part 1 display an index image P that is an index of the character magnification M(i) when setting at least one of the longitudinal magnification and the lateral magnification M(i) of the character M displayed on the display part 1. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a display device, an image forming apparatus including the display device, and an image processing apparatus.

  A display device having a display unit such as a liquid crystal display for displaying images and characters includes an image forming device such as a copying machine, a portable terminal device such as a mobile phone, an output device of an image processing device such as a computer, a television, etc. Widely used in a wide range of equipment such as image receiving devices.

  In such a conventional display device, the vertical resolution and the horizontal resolution of characters that are easy to see differ depending on the operator (for example, astigmatism person). It may be easier to see if set independently. Therefore, in the conventional display device, it is preferable to set the vertical and horizontal magnifications of the characters independently in order to cope with this.

  In such a display device, the operator confirms the vertical and horizontal magnifications of the actual characters after confirming the setting once in order to set at least one of the vertical and horizontal magnifications of the appropriate characters, and sets the settings. If it is difficult to see with the vertical and horizontal magnifications of the selected characters, it is necessary to reset the characters so that the characters become easy to see.

  That is, the appropriate character vertical and horizontal magnification settings for the operator are determined by an ambiguous standard of subjectivity of the operator, so the operator can set the character's vertical magnification and horizontal magnification to what extent. In many cases, it may not be possible to decide what should be done, and it may take time to obtain an appropriate setting value.

In addition, there are the following Patent Documents 1 and 2 as references in the related technical field. That is, Patent Document 1 proposes a technique for changing the size of text displayed based on a plurality of display formats in accordance with operation of an operation key. Further, in Patent Document 2, when displaying information for the owner of the set card, it is determined whether or not the card owner meets a predetermined condition based on predetermined information in personal information. In such a case, a technique has been proposed in which the character display size is increased compared to the case where the characters do not match. The techniques described in Patent Documents 1 and 2 do not take into account the above problems.
JP 2006-14223 A JP 11-338940 A

  The present invention has been made in view of the above problems, and a display device in which at least one of a vertical magnification and a horizontal magnification of characters suitable for the operator can be set without taking time and effort by the operator, and an image including the display device An object is to provide a forming apparatus and an image processing apparatus.

  In order to solve the above problems, the present invention includes a display unit and a character magnification setting unit that sets at least one of a vertical magnification and a horizontal magnification of characters displayed on the display unit, and the character magnification setting unit includes: In order to set at least one of a vertical magnification and a horizontal magnification of a character displayed on the display unit, an indicator image serving as an index of the character magnification is displayed on the display unit.

  The present invention also provides an image forming apparatus and an image processing apparatus including the display device according to the present invention.

  The “index image” referred to in the present invention can objectively and accurately determine at least one of a vertical magnification and a horizontal magnification of a character so that the character displayed on the display unit can be easily seen by an operator. As the index image, a Landolt ring image can be typically used. The Landolt ring is widely used when measuring static visual acuity, and has a C-shape with a part of the ring open.

  Therefore, according to the present invention, the display unit displays the index image that can objectively and accurately determine at least one of the vertical magnification and the horizontal magnification of the character on the display unit, so that a character suitable for the operator is displayed. It is possible to smoothly and reliably set at least one of the vertical magnification and the horizontal magnification. Thereby, it is possible to set at least one of the vertical magnification and horizontal magnification of the character appropriate for the operator without the operator's effort.

In the present invention, specific examples of the character magnification setting unit include the following. That is,
(A) Information on how the operator looks at the index image displayed on the display unit can be selected and input by the operator, and the character magnification setting unit sets the vertical magnification of the character displayed on the display unit The character vertical magnification setting unit determines the character vertical magnification to be displayed on the display unit based on information on the appearance of the index image selected and input by the operator. Embodiment,
(B) Information on how the operator looks at the index image displayed on the display unit can be selected and input by the operator, and the character magnification setting unit sets the horizontal magnification of the character displayed on the display unit. The character horizontal magnification setting unit determines the horizontal magnification of the character to be displayed on the display unit based on information on the appearance of the index image selected and input by the operator. It is an aspect.

  By this specific matter, the information on the appearance of the index image displayed on the display unit by the operator is selected and input by the operator, so that at least one of the vertical magnification and the horizontal magnification of an appropriate character displayed on the display unit is displayed. Can be set easily.

  In the aspect (a), the characters displayed on the display unit are characters of a plurality of types of vertical magnifications different from each other, and the index image is a plurality of types of vertical characters respectively corresponding to the characters of the types of vertical magnifications. In the case of a magnification index image, the character vertical magnification setting unit selects one index image corresponding to a character with a vertical magnification set to be displayed on the display unit from the plurality of types of vertical magnification index images. When displaying the one index image on the display unit, the index image is randomly displayed on a plurality of different display forms of the index image and selected by the operator. An example can be exemplified in which a function of setting the vertical magnification of the character displayed on the display unit based on the input information on the appearance of the index image is provided.

  With this specific matter, it is possible to quickly and easily select and input information about the appearance of the index image from among the multiple types of index images of the vertical magnification, and set the vertical magnification of the characters displayed on the display unit. Become.

  Further, the character vertical magnification setting unit, when displaying the one index image from the plurality of types of index images of the vertical magnification on the display unit, randomly displays the index image on the plurality of types of display forms. A plurality of times, and the comparison result of comparing the index image displayed on the display unit and the information on the appearance of the index image selected and input by the operator for each of the plurality of displays is totaled, and the totaled result It is preferable that a means for changing the setting of the vertical magnification of the character is provided.

  With this specific matter, it is possible to accurately set the vertical magnification of the characters displayed on the display unit from the information on the appearance of the index image selected and input from the plurality of types of index images having the vertical magnification.

  Further, in the present invention, information on the appearance condition by the operator of the index image displayed on the display unit is selected by the operator from the plurality of types of index images of the vertical magnification corresponding to the plurality of types of display forms. An input unit capable of inputting may be provided.

  In the aspect of (b), the characters displayed on the display unit are characters of a plurality of different types of horizontal magnification, and the index image has a plurality of types corresponding to the characters of the plurality of types of horizontal magnification. When the horizontal magnification index image is selected, the character horizontal magnification setting unit selects one of the plurality of types of horizontal magnification index images corresponding to the character of the horizontal magnification set for display on the display unit. When displaying the index image on the display unit and displaying the one index image on the display unit, the index image is randomly displayed on a plurality of different display forms of the index image, and the operator A mode in which the function of setting the horizontal magnification of the character displayed on the display unit based on the information on the appearance of the index image selected and input by the display unit can be exemplified.

  With this specific matter, it is possible to quickly and easily select and input information on the appearance of the index image from among the multiple types of index images of the horizontal magnification and set the horizontal magnification of the character displayed on the display unit. Become.

  The character lateral magnification setting unit, when displaying the one index image on the display unit from the plurality of types of lateral magnification index images, randomly displays the index image on the plurality of types of display forms. A plurality of times, and the comparison result of comparing the index image displayed on the display unit and the information on the appearance of the index image selected and input by the operator for each of the plurality of displays is totaled, and the totaled result It is preferable to provide a means for changing the setting of the horizontal magnification of the character based on the above.

  With this specific matter, it is possible to accurately set the horizontal magnification of the character displayed on the display unit from the information on the appearance of the index image selected and input from the plurality of types of index images having the horizontal magnification.

  Further, in the present invention, information on the appearance of the index image displayed on the display unit by the operator is selected by the operator from the plurality of types of horizontal magnification index images corresponding to the plurality of types of display forms. An input unit capable of inputting may be provided.

  As described above, according to the present invention, the display device capable of setting at least one of the vertical and horizontal magnifications of characters suitable for the operator without the operator's trouble, the image forming apparatus including the display device, and the image processing An apparatus can be provided.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In addition, the following embodiment is an example which actualized this invention, Comprising: The thing of the character which limits the technical scope of this invention is not.

  FIG. 1 is a block diagram illustrating a schematic configuration of an example of an image forming apparatus including a display device according to an embodiment of the present invention.

  An image forming apparatus 100 shown in FIG. 1 includes a display unit 1 that displays the status of image forming operations and operation information for performing image formation, and a control unit that includes a display control unit that controls display information displayed on the display unit 1. 2, an input unit 4 that can be input by an operator, an image reading unit 5 for reading an image to be printed, and image processing for converting an image read by the image reading unit 5 into image data for printing And a printing unit 7 for printing the image data converted by the image processing unit 6.

  The control unit 2 gives instructions and commands to the display unit 1, the input unit 4, the image reading unit 5, the image processing unit 6 and the printing unit 7 to control the entire image forming apparatus 100. . In addition, the control unit 2 is configured to include a character magnification setting unit 3 that independently sets a vertical magnification and a horizontal magnification of characters when displaying characters on the display unit 1. A display device 10 according to an embodiment of the present invention includes a character magnification setting unit 3 and a display unit 1. Further, the display device 10 and the image processing unit 6 constitute an image processing device 20.

  When the character magnification setting unit 3 sets the vertical magnification and horizontal magnification of the character displayed on the display unit 1 independently, when setting the vertical magnification of the character, the character magnification setting unit 3 When the index image P serving as a magnification index is displayed and the horizontal magnification of the character is set, the index image P serving as the horizontal magnification index of the character is displayed on the display unit 1.

  FIG. 2 is a plan view schematically showing the display unit 1 in the display device 10 shown in FIG. 1, and shows a state in which the index image P is displayed on the display unit 1.

  In the present embodiment, the index image P is a Landolt ring image. The Landolt ring has a C-shape with a part of the ring open. In the index image P, when both the vertical magnification and the horizontal magnification are 100%, for example, (the diameter of the entire ring): (the width of the arc constituting the ring): (the interval between the open portions P ′) is 5: It can be of a general configuration of 1: 1.

  In the display device 10 according to the embodiment of the present invention, the vertical magnification of the character is not a subjective and ambiguous criterion for determining whether the operator can easily see the character displayed on the display unit 1 by directly checking the character. Is set by the index image P, which is an index of the vertical magnification of the character, while the vertical magnification of the character displayed on the display unit 1 is set, and when the horizontal magnification of the character is set, The horizontal magnification of the character displayed on the display unit 1 is set by the index image P serving as the horizontal magnification index. In the index image P, when setting the vertical magnification of the character, the vertical magnification of the character can be objectively and accurately determined so that the character on the display unit 1 can be easily seen by the operator. When setting the magnification, the horizontal magnification of the character can be objectively and accurately determined so that the character on the display unit 1 can be easily seen by the operator. That is, the vertical and horizontal magnifications of the characters are set in association with the vertical and horizontal magnifications of the index image P, respectively. The character magnification setting unit 3 operates the index image P displayed on the display unit 1. When it is determined that the character corresponds to the character's appropriate vertical and horizontal magnifications, the character's vertical and horizontal magnification setting values corresponding to the index image P are set as appropriate setting values for the operator. It can be done.

  As described above, according to the display device 10 according to the embodiment of the present invention, by displaying the index image P on the display unit 1, the character's appropriate vertical and horizontal magnifications are set again and again for the operator. Therefore, it is possible to set the vertical and horizontal magnifications of characters suitable for the operator without taking time and effort.

  In addition to the above-mentioned Landolt ring image, the index image P that serves as an index of the vertical and horizontal magnifications of the characters, an image of alphabet characters such as “ABC”, an image of kana characters such as “Aiueo”, Any other symbol image, such as an image other than a character or symbol, as long as the character's vertical and horizontal magnifications can be objectively and accurately determined so that the character on the display unit 1 can be easily seen by the operator. Any one may be used.

  In the present embodiment, the display device 10 is configured such that the operator can selectively input information on the appearance of the index image P displayed on the display unit 1 by the operator. The character magnification setting unit 3 includes a character vertical magnification setting unit 31 that sets a vertical magnification of characters displayed on the display unit 1, and a character horizontal magnification setting unit 32 that sets a horizontal magnification of characters displayed on the display unit 1. It has.

  The character vertical magnification setting unit 31 determines the vertical magnification of the character displayed on the display unit 1 based on the information on the appearance of the index image selected and input by the operator. In addition, the character horizontal magnification setting unit 32 determines the horizontal magnification of the character displayed on the display unit 1 based on the appearance information of the index image selected and input by the operator.

  In the display device 10 having such a configuration, information on the appearance of the index image P displayed on the display unit 1 by the operator is selected and input by the operator. Therefore, the character's vertical and horizontal magnifications appropriate for the operator are set. It can be easily set as a set value.

  In the present embodiment, as shown in FIG. 4 to be described later, a character Ma displayed on the display unit 1 has a plurality of different vertical magnifications Ma (1) to Ma (n) (n is an integer of 2 or more). Is. Here, the vertical magnifications Ma (1) to Ma (n) of the character Ma increase in order as the subscript value increases. Further, n is 5 in the example of FIG.

  The index image P has a plurality of different vertical magnifications Pa (1) to Pa (n) respectively corresponding to the vertical magnifications Ma (1) to Ma (n) of the character Ma. Here, the vertical magnifications Pa (1) to Pa (n) of the index image Pa increase in order as the subscript value increases corresponding to the vertical magnifications Ma (1) to Ma (n) of the character Ma. ing.

  The character vertical magnification setting unit 31 then selects the vertical magnification Ma (i) of the character Ma set to be displayed on the display unit 1 from the index images Pa of a plurality of types of vertical magnifications Pa (1) to Pa (n). ) (I is an integer equal to or greater than 1 and equal to or smaller than n), a first function of sequentially displaying one index image Pa of the vertical magnification Pa (i) on the display unit 1 is provided. In the first function, when one index image Pa of the vertical magnification Pa (i) is sequentially displayed on the display unit 1, a plurality of different display forms of the index image Pa are randomly selected. To be displayed.

  Further, the character vertical magnification setting unit 31 increases the character M displayed on the display unit 1 by one larger magnification Ma according to the information on the appearance of the index image Pa of the vertical magnification Pa (i) selected and input by the operator. A second function for changing the setting to (i + 1) or one smaller vertical magnification Ma (i-1) is provided.

  Then, when the first function is to set one large vertical magnification Ma (i + 1) or one small vertical magnification Ma (i-1) of the character M in the second function, the second function One large vertical magnification Pa (i + 1) or one small vertical magnification Pa (i) respectively corresponding to one large vertical magnification Ma (i + 1) or one small vertical magnification Ma (i-1) of the character M set by the function. -1) One index image Pa is displayed on the display unit 1.

  In the present embodiment, the characters Mb displayed on the display unit 1 are of a plurality of different types of lateral magnifications Mb (1) to Mb (n) as shown in FIG. Here, the horizontal magnifications Mb (1) to Mb (n) of the character Mb increase in order as the subscript value increases. Further, n is 5 in the example of FIG.

  The index image P is of a plurality of different types of horizontal magnifications Pb (1) to Pb (n) that respectively correspond to the horizontal magnifications Mb (1) to Mb (n) of the character Mb. Here, the horizontal magnifications Pb (1) to Pb (n) of the index image Pb correspond to the horizontal magnifications Mb (1) to Mb (n) of the character Mb, and increase in order as the subscript value increases. ing.

  The character horizontal magnification setting unit 32 then selects the horizontal magnification Mb (i of the character Mb set for display on the display unit 1 from among the index images Pb of a plurality of types of horizontal magnifications Pb (1) to Pb (n). ) (I is an integer not smaller than 1 and not larger than n) has a first function for sequentially displaying one index image Pb of the horizontal magnification Pb (i) on the display unit 1. In the first function, when one index image Pb of the horizontal magnification Pb (i) is sequentially displayed on the display unit 1, a plurality of different display forms of the index image Pb are randomly selected. To be displayed.

  Further, the character horizontal magnification setting unit 32 increases the character M displayed by the display unit 1 by one larger horizontal magnification Mb according to the appearance information of the index image Pb of the horizontal magnification Pb (i) selected and input by the operator. A second function for changing the setting to (i + 1) or one smaller lateral magnification Mb (i-1) is provided.

  When the first function sets one large lateral magnification Mb (i + 1) or one small lateral magnification Mb (i−1) of the character M in the second function, the second function One large horizontal magnification Pb (i + 1) or one small horizontal magnification Pb (i) respectively corresponding to one large horizontal magnification Mb (i + 1) or one small horizontal magnification Mb (i-1) of the character M set by the function. -1) One index image Pb is displayed on the display unit 1.

  In the display device 10 having such a configuration, one index image Pa is selected from index images Pa and Pb having a plurality of types of vertical magnifications Pa (1) to Pa (n) and horizontal magnifications Pb (1) to Pb (n). , Pb appearance condition information can be selected and input quickly and easily, and an appropriate vertical magnification and horizontal magnification can be set for the operator of the character M displayed on the display unit 1.

  The display form of the index images Pa and Pb can be exemplified by a display form in which the index images Pa and Pb are rotated every predetermined angle (for example, 90 °). Here, the display form of the index images Pa and Pb is the orientation of the index images Pa and Pb such that the open portion P ′ of the index images Pa and Pb faces upward, downward, rightward or leftward.

  In the following description and the description of the flowchart of FIG. 6, “index image P with magnification P (1) to P (n)” refers to an index image Pa with vertical magnification Pa (1) to Pa (n) or The index image Pb of the horizontal magnifications Pb (1) to Pb (n) is meant, and the “character M of the magnification M (1) to M (n)” is the vertical magnification Ma (1) to Ma (n). It means the character Ma or the character Mb with the horizontal magnification Mb (1) to Mb (n). The “character magnification setting unit 3” means the character vertical magnification setting unit 31 in the setting of the vertical magnification, and the character horizontal magnification setting unit 32 in the setting of the horizontal magnification.

  The display device 10 according to the embodiment of the present invention further includes an input unit 4. FIG. 3 is a plan view schematically showing the input unit 4 in the display device 10 shown in FIG. 1, and an index image of the magnification P (i) of the operation members 42, 44, 46, 48 in the input unit 4. It is a figure which shows the correspondence with the display form of P.

  The input unit 4 has information on how the operator looks at the index image P of the magnification P (i) displayed on the display unit 1 from among the index images P of a plurality of types of magnifications P (1) to P (n). The operator can select and input corresponding to the plurality of types of display forms. Thereby, the operativity of the selection input corresponding to the display form of the index image P can be improved. Here, the input unit 4 is a keyboard having a numeric keypad that can be operated by keys.

  As illustrated in FIG. 3, the input unit 4 includes ten keys 41 to 49 from a number “1” to a number “9”. The character magnification setting unit 3 displays a plurality of types of display images of the index image P with the magnification P (i) displayed on the display unit 1 (here, the open part P ′ of the Landolt ring is upward, downward, leftward or rightward). 4 types of display modes facing up), “display mode facing up” is the numeric “2” key of the numeric keypad 42, “display format facing down” is the numeric “8” key of the numeric keypad 48, “Display mode facing left” corresponds to the numeric “4” key of the numeric keypad 44, and “Display format facing right” corresponds to the numeric “6” key of the numeric keypad 46. However, the present invention is not limited to this, and other keys or other operation units may be used.

  In the example shown in FIG. 2, the display unit 1 displays an index image P with a magnification P (i) that is “a display mode in which the open part P ′ of the Landolt ring faces right”. When the number “6” key of the numeric keypad 46 corresponding to “display mode facing right” is selected and input, the character image setting unit 3 has a good appearance of the index image P with the magnification P (i). It is judged. On the other hand, when a key other than the numeric keypad 46 among the numeric keys 42, 44, 46, 48 is selected and input by the input unit 4, the appearance of the index image P with the magnification P (i) is poor by the character magnification setting unit 3. It is judged.

  Specifically, the character magnification setting unit 3 selects the magnification M (i) of the character M set for display on the display unit 1 from the index images P of a plurality of types of magnifications P (1) to P (n). When displaying one index image P of the corresponding magnification P (i) on the display unit 1 in order from a larger magnification to a smaller magnification, the display form of the index image P with the magnification P (i) is displayed at random. When it is determined that the index image P of the magnification P (i) selected and input by the operator is good in appearance, the character M displayed on the display unit 1 is reduced by one magnification M (i−1). The display form of one index image P of one small magnification P (i-1) corresponding to the magnification M (i-1) of the character M is randomly displayed, but the appearance is poor. Is determined, the character M displayed on the display unit 1 is set to one larger magnification M (i + 1). It has become way.

  The character magnification setting unit 3 corresponds to the magnification M (i) of the character M set for display on the display unit 1 from among the index images P of a plurality of types of magnifications P (1) to P (n). When displaying one index image P of the magnification P (i) to be displayed in order from a small magnification to a large magnification on the display unit 1, after displaying the display form of the index image P of the magnification P (i) at random, When it is determined that the appearance of the index image P of the magnification P (i) selected and input by the operator is poor, the character M displayed on the display unit 1 is set to one larger magnification M (i + 1). When the display form of the index image P of one large magnification P (i + 1) corresponding to the magnification M (i + 1) of the character M is randomly displayed, while it is determined that the appearance is good The character magnification M (i) is set as it is.

  4 and FIG. 5 respectively show a plurality of types of character strings Ma and Mb displayed on the display unit 1 with vertical magnifications Ma (1) to Ma (n) and horizontal magnifications Mb (1) to Mb (n). It is a figure which shows the index images Pa and Pb of a plurality of corresponding vertical magnifications Pa (1) to Pa (n) and horizontal magnifications Pb (1) to Pb (n) in a list. In the example of FIGS. 4 and 5, n is 5. In the following description, n is assumed to be 5.

  As shown in FIG. 4, if any one of the index images Pa of the index images Pa with the vertical magnifications Pa (1) to Pa (5) can be recognized by the operator, the display of the corresponding character Ma can be sufficiently recognized. Set to vertical magnification. Therefore, if the index image Pa has a large vertical magnification, the character Ma also has a large vertical magnification. Conversely, if the index image Pa has a small vertical magnification, the character Ma has a small vertical magnification. In the example of FIG. 4, the vertical magnifications Ma (1) to Ma (5) of the character M and the vertical magnifications Pa (1) to Pa (5) of the index image P are 71%, 86%, 100%, 114% and 129%, and the horizontal magnification of the character Ma and the index image Pa are both 100%.

  In the present embodiment, the character vertical magnification setting unit 31 selects the vertical direction of the character Ma set for display on the display unit 1 from the index images Pa of a plurality of types of vertical magnifications Pa (1) to Pa (5). In order to sequentially display one index image Pa of the vertical magnification Pa (i) corresponding to the magnification Ma (i) on the display unit 1, a plurality of types of display forms of the index image Pa of the vertical magnification Pa (i) (here, The index image Pa of the vertical magnification Pa (i) is displayed a plurality of times so that the (different orientation) is random, and the index image Pa of the vertical magnification Pa (i) displayed on the display unit 1 for each of the plurality of times of display. And the comparison result between the index image Pa of the index image Pa of the vertical magnification Pa (i) selected and input by the operator are totaled, and the character Ma to be displayed on the display unit 1 according to the totaled result is displayed. One large vertical magnification Ma (i + 1) or one small vertical magnification It is adapted to configuration changes to Ma (i-1).

  Further, as shown in FIG. 5, if any one of the index images Pb of the index images Pb of the horizontal magnifications Pb (1) to Pb (5) can be recognized by the operator, the display of the corresponding character Mb can be sufficiently recognized. Set to the horizontal magnification of the character. Therefore, if the horizontal magnification of the index image Pb is large, the horizontal magnification of the character Mb also increases. Conversely, if the horizontal magnification of the index image Pb is small, the horizontal magnification of the character Mb also decreases. In the example of FIG. 5, the horizontal magnifications Mb (1) to Mb (5) of the character M and the horizontal magnifications Pb (1) to Pb (5) of the index image P are 71%, 86%, 100%, 114% and 129%, and the vertical magnifications of the characters Mb and the index image Pb are both 100%.

  In the present embodiment, the character horizontal magnification setting unit 32 uses the horizontal direction of the character Mb set for display on the display unit 1 from among the index images Pb of a plurality of types of horizontal magnifications Pb (1) to Pb (5). In order to sequentially display one index image Pb of the horizontal magnification Pb (i) corresponding to the magnification Mb (i) on the display unit 1, a plurality of types of display forms of the index image Pb of the horizontal magnification Pb (i) (here, The index image Pb of the horizontal magnification Pb (i) is displayed a plurality of times so that the (different orientation) is random, and the index image Pb of the horizontal magnification Pb (i) displayed on the display unit 1 for each of the plurality of times of display. And a comparison result obtained by comparing the appearance information of the index image Pb of the horizontal magnification Pb (i) selected and input by the operator, and the character Mb displayed on the display unit 1 according to the totaled result is displayed. One large horizontal magnification Mb (i + 1) or one small horizontal magnification It is adapted to configuration changes to Mb (i-1).

  In the display device 10 having such a configuration, the vertical image selected and inputted from the index images Pa and Pb having a plurality of types of vertical magnifications Pa (1) to Pa (5) and horizontal magnifications Pb (1) to Pb (5). From the information on the appearance of the index images Pa and Pb with the magnification Pa (i) and the horizontal magnification Pb (i), the operator who operates the characters Ma and Mb displayed on the display unit 1 can accurately obtain the appropriate vertical magnification and horizontal magnification. Can be set.

  Next, the character magnification setting processing flow of the display device 10 shown in FIG. 1 will be described. FIG. 6 is a diagram illustrating an example of a flowchart illustrating a flow of processing for determining a character magnification setting value in the character magnification setting unit 3 of the display device 10 illustrated in FIG. 1.

  In the character magnification setting process shown in FIG. 6, the process waits in step S1 until a character magnification setting instruction is received (step S1: NO). If there is a character magnification setting instruction (step S1: YES), step S2 is performed. The subsequent character magnification setting process starts.

  That is, first, in step S2, the character magnification setting value is set to an initial value. Here, among the characters M of a plurality of types of magnifications M (1) to M (5), the magnification M (i) of the character M is changed in order so that the magnification decreases from a larger magnification to a smaller magnification. The character image magnification is set by displaying the index image P of the corresponding magnification on the display unit 1 and confirming how far the appearance is good. Here, the initial value of the character magnification setting value is the maximum character magnification value M (5).

  Note that the order of the index image P of the magnification P (i) displayed on the display unit 1 corresponding to the character M of the magnification M (i) to be set is not limited thereto, and for example, a plurality of types of magnifications Among the characters M of M (1) to M (5), the magnification M (i) of the character M is sequentially changed so that the magnification is increased from the small magnification to the large magnification, and the index image P having the magnification corresponding thereto. May be displayed on the display unit 1 and the character magnification may be set by checking how far the appearance is poor. In this case, the initial value of the character magnification setting value may be the minimum character magnification value M (1).

  In addition, an index image P corresponding to a character M having a reference magnification (for example, an intermediate magnification) among the characters M of a plurality of types of magnifications M (1) to M (5) is displayed on the display unit 1 so that the appearance is improved. When it is favorable, the characters are sequentially changed so as to decrease the character magnification, and the index image P of the magnification corresponding thereto is displayed on the display unit 1 to confirm how far the appearance is good, When the appearance is poor, the characters are sequentially changed so as to increase the character magnification, and the index image P with the corresponding magnification is displayed on the display unit 1 to check how far the appearance is bad. May be. In this case, the initial value of the character magnification setting value can be a magnification that serves as a reference for the character magnification (for example, the intermediate magnification M (3)).

  Next, a magnification M (i) (initial value is the maximum magnification M (5)) set for display on the display unit 1 from among the index images P of a plurality of types of magnifications P (1) to P (5). One index image P of the magnification P (i) corresponding to the character M is displayed on the display unit 1 (steps S3 to S5).

  Specifically, in step S3, one index P (i) corresponding to the set magnification M (i) of the character M among the index images P of a plurality of types of magnifications P (1) to P (5). A plurality of types of display forms of the image P are displayed at random (here, the Landolt ring open portion P ′ is displayed so as to face in any one of the upward, downward, leftward and rightward directions).

  Thereafter, in step S4, the appearance of the index image P with the magnification P (i) in the display form displayed on the display unit 1 by the operator is selected by the operator, and the numeric keypad as an example of the operation member of the input unit 4 An input operation such as a pressing operation on any of 42, 44, 46, and 48 is performed.

  Here, the magnification P (i) corresponding to the magnification M (i) of the character M set to be displayed on the display unit 1 from among the index images P of a plurality of types of magnifications P (1) to P (5). When one index image P is displayed on the display unit 1 one by one, the display form of the index image P with the magnification P (i) is randomly displayed a plurality of times (here, 10 times) in step S5. . That is, it is determined whether or not to repeat the processing of step S3 to step S4 depending on whether or not the processing of step S3 to step S4 has been repeated a plurality of times. If the process of step S3 to step S4 has not been repeated a plurality of times, the process proceeds to step S3, while if the process of step S3 to step S4 is repeated a plurality of times, the process proceeds to step S6.

  Next, in step S6, the appearance of the index image P with the magnification P (i) selected and input by the operator is determined. That is, the magnification P (i) input to the operation members 42, 44, 46, and 48 of the input unit 4 in step S4 with respect to the index image P of the magnification P (i) displayed on the display unit 1 in step S3. It is determined whether or not the appearance of the index image P is good.

  When it is determined that the index image P with the magnification P (i) selected and input by the operator is good (step S6: good), the character M displayed on the display unit 1 is reduced by one magnification. M (i-1) is set (step S7). The display form of one index image P (here, one smaller magnification P (i-1) corresponding to the magnification M (i-1) of the character M (here, Display in different directions is randomly performed a plurality of times (steps S3 to S5). On the other hand, when it is determined that the appearance is bad (step S6: bad), the process proceeds to step S8.

  Specifically, in step S6, the index image P of the magnification P (i) displayed on the display unit 1 in step S3 and the magnification P () input to the operation members 42, 44, 46, and 48 of the input unit 4 in step S4. It is determined at what rate the information on the appearance condition of the index image P in i) matches. That is, the degree of appearance of the index image P with the magnification P (i) displayed on the display unit 1 and the index image P with the magnification P (i) selected and input by the operator for each of the plurality of displays in step S3 to step S5. The comparison result (in this case, the correct answer rate) was compared with the information of the above, and when the total result reached a predetermined criterion (if 80% or more matches here), an input operation was performed. When it is determined that the index image P with the magnification P (i) looks good, the process proceeds to step S7. On the other hand, when the criterion is not satisfied (in this case, it is less than 80%, the input operation is performed). The appearance of the index image P of P (i) is determined to be poor, and the process proceeds to step S8.

  If it is determined in step S6 that the index image P of the magnification P (i) input and operated is good, the character magnification setting value M (i displayed on the display unit 1 in step S7. ) Is set to one smaller magnification M (i-1), and the process is repeated again from step S3.

  On the other hand, when it is determined that the appearance of the index image P of the input magnification P (i) is poor, the character magnification setting value M (i) displayed on the display unit 1 is set in step S8. One larger magnification M (i + 1) is set, and this is set as an appropriate character magnification setting value for the operator, and the process is terminated.

  Note that among the multiple types of characters M of the magnifications M (1) to M (5), the magnification M (i) of the character M is sequentially changed so as to increase the magnification from a small magnification to a large magnification, and this is handled. When displaying the index image P of the magnification to be displayed on the display unit 1 and confirming the appearance, the following processing can be performed in the flowchart of FIG.

  That is, the initial value of the character magnification setting value is set to the minimum character magnification value M (1) in step S2, and the index image P of the magnification P (i) selected and input by the operator in step S6 is seen. When it is determined that the condition is bad (here, the accuracy rate is less than 80), in step S7, the character M displayed on the display unit 1 is set to one larger magnification M (i + 1), and steps S3 to S5 are performed. Then, display of the display form of one index image P of one large magnification P (i + 1) corresponding to the magnification M (i + 1) of the character M is randomly performed a plurality of times. On the other hand, if it is determined in step S6 that the appearance is good (here, the accuracy rate is 80 or more), the character magnification setting value M (i) displayed on the display unit 1 is used as it is in step S8. Then, this is set as a character magnification setting value appropriate for the operator, and the process is terminated.

  In addition, an index image P corresponding to a character M having a reference magnification (for example, an intermediate magnification M (3)) among the characters M of a plurality of types of magnifications M (1) to M (5) is displayed on the display unit 1. In step S2, the initial value of the character magnification setting value is set as a character magnification reference (for example, intermediate magnification M (3)), and an index corresponding to the set character is determined. When it is determined that the appearance of the image P is good, as described above, the magnification M (i) of the character M is sequentially changed so that the magnification is reduced, and the index image P having the corresponding magnification is obtained. When the appearance of the index image P corresponding to the set character is determined to be poor while being displayed on the display unit 1 to confirm the appearance, the character is set so that the magnification is increased as described above. The magnification M (i) of M is changed in order, and the corresponding magnification It is possible to perform the process of checking the condition appear to display the index image P on the display unit 1.

  Here, the degree of appearance of the index image P with the magnification P (i) is determined at a correct answer rate of 80% or more, but the present invention is not limited to this, and the correct answer rate may be 90% or more. In addition, the display state of the index image P with the magnification P (i) is determined to be 10 times, and the appearance of the index image P is determined. However, if a certain amount of statistics is obtained, the index image P is determined about 5 times. Also good.

  Through the character magnification setting process described above, the smallest value that is easy to see for the operator among the multiple types of magnifications M (1) to M (5) can be set for the character M displayed on the display unit 1. And an optimum character magnification for displaying the character M can be set.

  The above character magnification setting process is performed as a vertical magnification process for the vertical magnification and also as a horizontal magnification process for the horizontal magnification.

  Here, the difference between the vertical magnification process and the horizontal magnification process is that when the input determination is performed in step S6, the vertical magnification process places an emphasis on the determination criterion related to the vertical magnification (for example, the determination criterion related to the vertical magnification is determined). In contrast, in the process for horizontal magnification, emphasis is placed on the criterion regarding horizontal magnification (for example, the criterion regarding horizontal magnification is set higher than the criterion regarding vertical magnification). It is.

  The display device 10 according to the present embodiment is mounted on an image forming apparatus, but is not limited thereto, and is applied to devices such as a portable terminal device, a personal computer (PC), a television, or the like. Is possible.

1 is a block diagram illustrating a schematic configuration of an example of an image forming apparatus including a display device according to an embodiment of the present invention. FIG. 2 is a plan view schematically showing a display unit in the display device shown in FIG. 1 and showing a state in which an index image is displayed on the display unit. FIG. 2 is a plan view schematically showing an input unit in the display device shown in FIG. 1 and showing a correspondence relationship with a display form of an index image of an operation member on the input unit. It is a figure which shows the character string of the multiple types of vertical magnification displayed on the display part, and the index image of the multiple types of vertical magnification corresponding to it in a list. It is a figure which shows the character string of the multiple types of horizontal magnification displayed on the display part, and the index image of the multiple types of horizontal magnification corresponding to it in a list. It is a figure which shows an example of the flowchart which shows the flow of the process which determines the setting value of a character magnification in the character magnification setting part of the display apparatus shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Display part 3 Character magnification setting part 4 Input part 10 Display apparatus 20 Image processing apparatus 31 Character vertical magnification setting part 32 Character horizontal magnification setting part 100 Image forming apparatus M Character P Index image

Claims (12)

A display unit, and a character magnification setting unit for setting at least one of a vertical magnification and a horizontal magnification of characters displayed on the display unit,
The character magnification setting unit displays an index image as an index of the character magnification on the display unit when setting at least one of a vertical magnification and a horizontal magnification of a character displayed on the display unit. apparatus. The display device according to claim 1,
Information on the appearance of the index image displayed on the display unit by the operator can be selected and input by the operator,
The character magnification setting unit includes a character vertical magnification setting unit for setting a vertical magnification of characters displayed on the display unit,
The character vertical magnification setting unit determines a character vertical magnification to be displayed on the display unit based on information on the appearance of an index image selected and input by an operator. The display device according to claim 1,
Information on the appearance of the index image displayed on the display unit by the operator can be selected and input by the operator,
The character magnification setting unit includes a character horizontal magnification setting unit for setting a horizontal magnification of characters displayed on the display unit,
The display device according to claim 1, wherein the character horizontal magnification setting unit determines a horizontal magnification of a character to be displayed on the display unit based on information on an appearance degree of an index image selected and input by an operator. The display device according to claim 2,
The characters displayed on the display unit are characters of a plurality of different vertical magnifications,
The index image is a plurality of types of vertical magnification index images respectively corresponding to the plurality of types of vertical magnification characters,
The character vertical magnification setting unit displays, on the display unit, one index image corresponding to a character with a vertical magnification set to be displayed on the display unit, from among the plurality of types of vertical magnification index images. When displaying the one index image on the display unit, the index image is randomly displayed for a plurality of different display forms of the index image, and the index image selected and input by the operator is visible. A display device comprising a function of setting a vertical magnification of a character displayed on the display unit based on condition information. The display device according to claim 4,
The character vertical magnification setting unit is configured to display a plurality of random displays for the plurality of types of display forms of the index image when the indicator image is displayed on the display unit from the index images of the plurality of types of vertical magnifications. The comparison results obtained by comparing the index image displayed on the display unit and the information on the appearance of the index image selected and input by the operator for each of the plurality of times of display are tabulated, and based on the tabulated count result A display device comprising means for changing a setting of a vertical magnification of a character. The display device according to claim 4 or 5,
An input unit that allows the operator to selectively input information on the appearance of the index image displayed on the display unit from among the plurality of types of index images of the vertical magnification corresponding to the plurality of types of display forms. A display device comprising the display device. The display device according to claim 3,
Characters displayed on the display unit are characters of a plurality of different horizontal magnifications,
The index image is a plurality of types of horizontal magnification index images corresponding to the plurality of types of horizontal magnification characters, respectively.
The character horizontal magnification setting unit causes the display unit to display one index image corresponding to the character of the horizontal magnification set for display on the display unit from among the plurality of types of horizontal magnification index images. When displaying the one index image on the display unit, the index image is randomly displayed for a plurality of different display forms of the index image, and the index image selected and input by the operator is visible. A display device comprising a function for setting a horizontal magnification of a character displayed on the display unit based on condition information. The display device according to claim 7,
The character lateral magnification setting unit is configured to display a plurality of random displays for the plurality of types of display forms of the index image when the indicator image is displayed on the display unit from the index images of the plurality of types of horizontal magnification. The comparison results obtained by comparing the index image displayed on the display unit and the information on the appearance of the index image selected and input by the operator for each of the plurality of times of display are tabulated, and based on the tabulated count result A display device comprising means for changing a setting of a horizontal magnification of a character. The display device according to claim 7 or 8,
An input unit that allows the operator to select and input information on the appearance of the index image displayed on the display unit from the plurality of types of horizontal magnification index images corresponding to the plurality of types of display forms. A display device comprising the display device. The display device according to any one of claims 1 to 9,
A display device using an image of a Landolt ring as the index image.   An image forming apparatus comprising the display device according to claim 1.   An image processing apparatus comprising the display device according to claim 1.

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