JPH09319551A - Display controller - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily hide only desired display contents through operation on a machine. SOLUTION: When a full turn-on key MD 1 is operated [figure (b)] after a hidden object area HD1 is set by an input pen 4 while operating a setting key 22a [figure (a)], the hidden object area HD1 is fully turned on by changing dots around the black dot of an image to be displayed in that area into black dots as well and a hidden area RHD1 is formed [figure (b)]. Afterwards, when a release key MD2 is operated, the hidden area RHD1 is restored into the original hidden object area HD1 and the image is expressed in that area again [figure (c)].

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display control device having a pen touch function.

[0002]

2. Description of the Related Art In a portable electronic device such as an electronic notebook, handwriting characters and various selection items are selected by touching an input pen on a liquid crystal display screen. At the time of this pen input, by inverting the pen touch portion in black and white, the selected content can be emphasized and displayed so as to be distinguishable from other displays.

[0003]

However, in the above-mentioned prior art, since the display contents by pen input cannot be hidden, the display screen displays a sentence that a person does not want to see, a word to be memorized, and the like. It was very troublesome to cover the contents with hands, paper, etc. and to perform the operation frequently.

SUMMARY OF THE INVENTION An object of the present invention is to provide a display control device capable of easily concealing only desired display contents by on-machine operation in order to solve the above-mentioned problems of the conventional example.

[0005]

According to a first aspect of the present invention, there is provided a display control device for controlling display data for forming a display image on the display device according to a touch input to the display device. A setting means for setting an arbitrary conversion target area from the display image of the display means by touch input, and data for converting display data in the arbitrary conversion target area set by the setting means into predetermined display data. It is characterized in that it has a converting means and a display changing means for changing the display image of the arbitrary conversion target area based on the predetermined display data converted by the data converting means.

According to the invention of claim 1, the setting means sets an arbitrary conversion target area from the display image of the display means by touch input, and the data converting means sets the arbitrary conversion set by the setting means. The display data in the target area is converted into predetermined display data, and the display changing unit changes the display image of the arbitrary conversion target area based on the predetermined display data converted by the data converting unit.

Therefore, since the display data in the arbitrary conversion target area set by the touch input is converted into the predetermined display data, the original display content should be assumed from the display content in the conversion target area. To be difficult
It is possible to easily hide only the desired display contents by operating the machine.

According to a second aspect of the present invention, in the display control device according to the first aspect, the display data in the arbitrary conversion target area, which has been data-converted by the data conversion means, is before the data conversion. Data restoring means for restoring data to the state, display restoring means for restoring the display image of the arbitrary conversion target area based on the display data restored by the data restoring means, and data conversion by the data converting means. Switching means for switching between restoration by the data restoration means according to a touch input,
It is characterized by having.

According to the second aspect of the present invention, the data restoration means restores the display data in the arbitrary conversion target area, which has been subjected to the data conversion by the data conversion means, to the state before the data conversion, and restores the display. The means restores a display image of an arbitrary conversion target area based on the display data restored by the data restoring means, and the switching means performs data conversion by the data converting means and restoration by the data restoring means in response to a touch input. To switch.

Therefore, the display data in an arbitrary conversion target area set by touch input can be switched alternately so as to be converted into predetermined data by touch input or restored to the original state. Only the desired display content can be easily hidden by the operation on the machine as appropriate so that it becomes difficult to assume the original display content from the display content in the target area.

According to a third aspect of the present invention, there is provided a display control device for controlling display data for forming a display image on the display means in response to a touch input to the display means. Storage means for storing display data consisting of valid data and invalid data for forming a display image, setting means for setting an arbitrary concealment target area from the display image of the display means by touch input, and storage in the storage means Of the displayed data, the determination means for determining invalid data from the display data in the arbitrary concealment target area set by the setting means, and the invalid data determined by the determination means are converted into valid data. A data conversion unit and the arbitrary conversion pair according to the data conversion of the display data stored in the storage unit by the data conversion unit. And having a display changing means for changing the display image of the area concealed image.

According to the third aspect of the invention, the storage means stores display data consisting of valid data and invalid data for forming a display image on the display means, and the setting means stores the display image on the display means. From the display data stored in the storage means, the discriminating means sets an arbitrary concealment target area by touch input, and discriminates invalid data from the display data in the arbitrary concealment target area set by the setting means, The data conversion means data-converts the invalid data discriminated by the discrimination means into valid data, and the display change means, according to the data conversion of the data conversion means with respect to the display data stored in the storage means, a display image of an arbitrary conversion target area. To a hidden image.

Therefore, since all the display data in the arbitrary concealment target area set by the touch input is converted into valid data, the original display content can be assumed from the concealment image in the concealment target area. To be difficult
It is possible to easily hide only the desired display contents by operating the machine.

According to a fourth aspect of the present invention, in the display control device according to the third aspect of the present invention, the display data in the arbitrary concealment target area which is data-converted by the data conversion means is before the data conversion. Data restoring means for restoring data to the above state, display restoring means for displaying and restoring the display image of the arbitrary concealment target area based on the display data restored by the data restoring means, and data conversion by the data converting means And switching means for switching the data restoration by the data restoration means by touch input.

According to the invention described in claim 4, the data restoration means restores the display data in the arbitrary concealment target area, which has been data-converted by the data conversion means, to the state before the data conversion, and restores the display. The means displays and restores a display image of an arbitrary concealment target area based on the display data restored by the data restoring means, and the switching means touch-inputs data conversion by the data converting means and data restoration by the data restoring means. To switch.

Therefore, the display image in an arbitrary concealment target area set by the touch input is changed to the concealment image or restored to the original display image by the touch input, so that the concealment image of the concealment target area is changed. Only the desired display content can be easily hidden by an operation on the machine as appropriate so that it is difficult to assume the original display image.

According to a fifth aspect of the present invention, in the display control device according to the third or fourth aspect of the invention, the data conversion means is effective data and invalid data for the display data in the arbitrary concealment target area. It is characterized in that predetermined pattern data composed of and are superimposed.

According to the fifth aspect of the invention, since the predetermined pattern is superimposed on the display image of the arbitrary concealment target area, the original display image can be seen from the portion corresponding to the invalid data. The hint can be presented by the partial original display image.

A display control device according to a sixth aspect of the present invention is the display control device according to the third or fourth aspect of the invention, further comprising pattern storage means for storing a plurality of types of pattern data composed of valid data and invalid data. And a pattern selection unit that selects one pattern data from a plurality of types of pattern data stored in the pattern storage unit, the data conversion unit, for the display data in the arbitrary concealment target area The pattern data selected by the pattern selecting means is superimposed.

According to the sixth aspect of the present invention, the desired pattern is selected and superimposed on the display image of the arbitrary concealment target area. Therefore, by using the pattern according to the concealment purpose, invalid data can be obtained. The original display image becomes visible from the corresponding part, and the hint can be presented by the partial original display image.

[0021]

Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. First, a first embodiment according to the present invention will be described. FIG. 1 is an external configuration diagram showing an electronic device that is an embodiment of a display control device according to the present invention. In FIG. 1, 1 shows an electronic device according to the present embodiment. This electronic device 1
Is applied to a device such as a portable electronic notebook or a wristwatch.

An LCD (Liquid Crystal Display) display section 2 is provided on the front section 1a of the electronic apparatus 1 shown in FIG. 1, and the LCD is formed so as to be integrated with the LCD display section 2.
A pen-touch type coordinate input unit 3 is attached on the display unit 2. Further, a handwriting input unit 21 is provided on the upper portion of the LCD display unit 2, and a key input unit 22 is provided on the lower portion. The key input section 22 is provided with an execution key, a menu key, a function key 22b, a setting key 22a and the like. The function key 22b is a key that is operated to display various modes including the concealment mode with icons and arbitrarily select a mode from the icons, and the setting key 22a is for the display image (characters or the like) of the handwriting input unit 21. This is a key operated to set a hidden area. The coordinate input unit 3 and the key input unit 5 may be provided with the same configuration for detecting a pen input, for example, with a tablet or may be provided separately. Reference numeral 4 denotes an input pen, which is an LCD display unit 2.
Touch input (data input) to the upper coordinate input section 3
And a touch input (key input) for each key of the key input unit 22.

A power switch section 5 and an external input I / F 10 are arranged on the side surface 1b of the electronic apparatus 1. Electronic device 1 by switching operation of power switch unit 5
ON / OFF switching of the power source is performed. External input I / F
10, an external input terminal is provided, and a cable such as a detachable RS232C is attached to the external input terminal, and data can be fetched from an external device via the cable and displayed on the LCD display unit 2. it can.

FIG. 2 is a block diagram showing the internal configuration of the electronic device 1, and FIG. 3 is a diagram showing an example of the memory contents of a concealment mode memory 84 and a concealment area data memory 85 which will be described later. The electronic device 1 shown in FIG. 2 includes, for example, an LCD display unit 2, a coordinate input unit 3 (key input unit 22), a CPU 6,
ROM7, RAM8, character recognition unit 9, and external input I /
It is composed of F10.

Based on the coordinate position signal supplied from the coordinate input section 3, the CPU 6 controls the operation of the entire electronic device 1 (each connected section) and performs arithmetic processing in accordance with various control programs stored in the ROM 7. While being executed, a concealment mode process for concealing a part or the whole of the image such as characters displayed on the handwriting input unit 21 of the LCD display unit 2 is executed, which will be described later. The processes executed by the various control programs are the main process according to the flowchart shown in FIG. 4, the concealment mode process according to the flowchart shown in FIG. 5, the all-lighting process according to the flowchart shown in FIG. 6, and the flowchart shown in FIG. 8 includes a cancellation process according to FIG. 8, a resetting process according to the flowchart shown in FIG. 8, an ending process according to the flowchart shown in FIG. 9, and the like.

The ROM 7 includes a program memory 71, and the program memory 71 stores the above-mentioned various control programs (see FIGS. 4 to 9) for operating the CPU 6 and parameters.

The RAM 8 is a work memory for the CPU 6 to operate according to various control programs, as well as a handwriting data memory 81, a character code memory 82, a pattern data memory 83, a concealment mode memory 84, a concealment area data memory 85, and an image memory. 86, a display memory 87 and the like.

The handwritten data memory 81 is a memory for storing handwriting (point input, character stroke input or graphic stroke input) for the coordinate input unit 3 on the LCD display unit 2 as handwritten data, and the character code memory 82 is handwritten. The memory stores the recognition result of the character recognition unit 9 based on the handwritten data stored in the data memory 81 as a character code. The pattern data memory 83 is a memory that stores pattern data of characters based on the character code stored in the character code memory 82.

The concealment mode memory 84 stores O in the concealment mode.
Hiding mode flag 90 "1" / "0" in N / OFF state
It is a memory that is stored in. In the example of FIG. 3A, since the concealment mode flag 90 is set to ON, currently,
This indicates that the concealment mode process is being executed. The hidden area data memory 85 stores the hidden area data (coordinate position data) at the upper left end (first base point) and the lower right end (second base point) of the rectangular hidden area, and displays the current display of the hidden area. Is a memory for storing the concealment state (all lighting state) or the non-concealment state (all lighting cancellation state) with the concealment flag “1” / “0”. In the example of FIG. 3B, the concealment area data is stored as the first base point (X1, Y1) and the second base point (X2, Y2), and the concealment flag is set to ON, that is, “1”. Therefore, it indicates that the hidden area specified by the hidden area data is currently in the hidden state (all lighting state).

The image memory 86 is a memory for storing image data input via the external input I / F 10 and image data of a sentence created on the machine. The display memory 87 is an LCD display unit. 2 is a memory that stores display data for displaying an image in FIG. L depending on the concealment mode
When a part or all of the image displayed on the CD display unit 2 is hidden, the image memory 86 stores the original image data that is not hidden, while the display memory 87 displays the hidden object. The data becomes the data forming the all-lit state.

Then, the LCD display unit 2 forms an image based on the bitmap (display data) developed in the display memory 87 under the control of the CPU 6. Coordinate input section 3
Displays the coordinate position signal C according to the touch input of the input pen 4.
Supply to PU6. The character recognition unit 9 uses, for example, the function key 2
When the memo function is executed according to 2b, the stroke data (handwritten data) of the character handwritten in the coordinate input unit 3 is recognized and supplied to the CPU 6.

Next, the operation will be described. 4 is a flowchart illustrating the main processing, FIG. 5 is a flowchart illustrating the concealment mode processing, FIG. 6 is a flowchart illustrating the all-lighting processing, FIG. 7 is a flowchart illustrating the cancellation processing, and FIG. 8 is a resetting processing. FIG. 9 is a flowchart for explaining the end processing. 10 and 11 are diagrams for explaining the operation procedure of the concealment mode process. Note that the following operations are performed by the CPU
Although controlled by the CPU 6, each operation is performed by each unit connected to the CPU 6.

In the electronic device 1, the power is already turned on by the operation of the power switch unit 5, and when the process shown in the flowchart of FIG.
It is continuously displayed on the D display unit 2. In the example of FIG. 10A, the handwriting input unit 21 displays “JEIDA” in the upper row, “JEOL” in the middle row, and “Promotion Association” in the lower row. It was done.

When the key operation of the function key 22b is detected in this state, the key input of the function key 22b is detected in step S1 and the key type of the function key 22b is confirmed in step S2 to perform the process in step S3. Move to.
In step S3, various functions (including the concealment mode function) can be displayed as icons, and a desired function can be selected by touching the pen. Therefore, when the concealment mode function is selected, the concealment mode flag of the concealment mode memory 84 is set to O.
It is set to N, the selection of the concealment mode function is confirmed in the subsequent step S4, and the process further proceeds to step S5. In this step S5, in order to execute the concealment mode, has a document screen for displaying a character, a graphic or the like been displayed as a condition to create a document, as shown in the display example of FIG. It is determined whether or not. As a result, when the determination result that the display is not completed is obtained, it is determined that the condition is not satisfied, and the concealment mode flag is reset to OFF, and then the process is performed in step S.
Return to 1. On the other hand, when the result of the determination that it has been displayed is obtained, it is determined that the condition is satisfied, and the process proceeds to the concealment mode process of step S6 (see FIG. 5).

In order to start the concealment mode process at this stage, as shown in FIG. 10A, as the concealment mode soft keys, the all-lighting key MD1, the release key MD2, and the end key MD3 are the key input section 22. Is displayed in the upper row of. The all-lighting key MD1 is a key operated when the display in the set concealment area is in the concealment state, that is, the all-illumination state, and the release key MD2 releases the all-illumination state in the concealment area and displays the original display. This is the key that is operated when returning to. The end key MD3 is a key operated when exiting the concealment mode process.

In step S2, the function key 2
When a key operation other than 2b is confirmed, a process corresponding to the input key is executed. If a function other than the concealment mode function is selected in step S4, the mode process corresponding to the selected function is executed.

Now, when the processing shifts to the concealment mode processing, as shown in FIG. 5, the input of the setting key 22a is detected. Therefore, as shown in FIG. 10A, when the setting key 22a is key-operated by operating the input pen 4, the process proceeds to step S22 in accordance with the input detection, and the hidden area setting process is executed. . For example, as shown in FIG. 10A, in order to specify the rectangular concealment target area HD1 surrounding the "Japan Electronic Industry Development Association", the first pen point P1 and the second base point P2 are operated by operating the input pen 4. It suffices to input coordinates and, and when the two base points of the first base point P1 and the second base point P2 are designated, the setting end is confirmed in step S23. After this, the process proceeds to step S24.

In step S24, as shown in FIG. 3A, the hidden area data (X1, Y1) and (X2, Y2) at the first base point P1 and the second base point P2 are stored in the hidden area data memory 86. Is stored. At this time, the concealment flag has an initial value of zero (OFF).

After this, the process proceeds to step S25, and the input of the end key MD3 is first detected. If the input detection of the end key MD3 is not obtained, then the input detection of the all-lit key MD1 in step S27, step S2.
The input detection of the release key MD2 of 9 and the input detection of the setting key 22a of step S31 are sequentially performed, and steps S25, S27, and S29 are performed until any input detection is obtained.
S31 is repeatedly executed.

Then, as shown in FIG. 10 (b), when the all-lit key MD1 is input by the input pen 4,
In step S27, input detection of the all-lighting key MD1 is obtained, and in the following step S28, all-lighting processing (see FIG. 6).
Refer) is executed.

In this full lighting process, as shown in FIG. 6, first, in step S41, the concealment flag is turned ON.
/ OFF is confirmed. At this point in time, as shown in FIG. 3A, the concealment flag is reset to OFF, so the processing moves to step S42, and the first base point (X1, Y1 stored in the concealment area data memory 86 is stored. ),
The concealment target area HD1 based on the second base point (X2, Y2)
(See FIG. 10 (a)), all the lights are turned on and the concealed area RHD 1
(See FIG. 10B). That is, the image “Japan Electronic Industry Development Association” existing in the concealment target area HD1
Is converted into a black dot so that the effective black dots constituting the above and surrounding dots are also effective. As a result, all the data in the concealment area RHD1 becomes uniform effective data, and the image "Japan Industrial Promotion Association" is concealed.

At the subsequent step S43, as shown in FIG. 3B, the concealment flag of the concealment area data memory 85 is set to ON, and the concealment flag "ON" thereafter specifies the concealment area data. Area (Hidden area RHD
In 1), it becomes possible to confirm that it is in the concealed state (all lighting state). After that, the process returns to the concealment mode process of FIG. 5, and is restarted from the input detection of the end key MD3 in step S25. Thereafter, when the input of the all-lit key MD1 is detected again, the concealment flag “ON” is determined in step S41.
Will be confirmed, and in this case, the hidden area R has already been
Since the HD1 is in the all-lighted state, the process directly returns to step S25.

Next, as shown in FIG. 10C, when the release key MD2 is keyed by the input pen 4, the release key MD2 is detected in step S29, and the release process is performed in step S30. (See Figure 7)
Is executed.

In this canceling process, as shown in FIG.
First, in step S51, the concealment flag is turned ON / O.
FF is confirmed. At this point in time, as shown in FIG. 3B, the concealment flag is set to ON, so the processing moves to step S52, and the concealment area data memory 85
Based on the first base point (X1, Y1) and the second base point (X2, Y2) stored in the hidden area RHD1 (see FIG. 10).
(B)) is turned off and the concealment target area HD1
(See FIG. 10C). That is, in order to make only the black dots forming the image "Japan Electronic Industry Promotion Association" existing in the concealment target area HD1 effective dots, the surrounding dots are inversely converted to the original invalid white dots. As a result, the data in the concealment area RHD1 becomes invalid data and becomes white dots, leaving only the black dots that make up the image "Japan Industrial Promotion Association", and the concealment state of the image "Japan Industrial Promotion Association" is released. It

At the subsequent step S53, as shown in FIG. 3A, the concealment flag of the concealment area data memory 86 is reset to OFF, and the concealment flag "OFF" thereafter specifies the concealment area data. It is possible to confirm that the area (concealment target area HD1) is in the non-concealed state. After that, the process returns to the concealment mode process of FIG. 5, and is restarted from the input detection of the end key MD3 in step S25. After that, when the release key MD2 is detected again, the concealment flag “OFF” is confirmed in step S51. In this case, since the all-illumination state of the concealment target area HD1 is in the release state, The process returns as it is and returns to step S25.

To change the currently set concealment area, the setting key 22a may be keyed in the state of FIG. 10B or 10C. In this case, the input detection is obtained in step S31 of the concealment mode process, the process proceeds to step S32, and the resetting process (see FIG. 8) is executed.

In this resetting process, as shown in FIG. 8, first, in step S61, the concealment flag is turned ON.
/ OFF is confirmed. For example, as shown in FIG. 3B, when the concealment flag is set to ON, the process proceeds to step S62 and the first base point (X1, stored in the concealment area data memory 86). Y1) and the second base point (X2, Y2) based on the hidden area RHD1 (see FIG. 10).
(B)) is turned off and the concealment target area HD1
(See FIG. 10C).

In a succeeding step S63, as shown in FIG. 3A, the concealment flag of the concealment area data memory 85 is reset to OFF, and further in step S64, the concealment areas of the first base point P1 and the second base point P2. The data is cleared. As a result, the concealment area data memory 85 is in the state of the concealment mode flag “ON”, the concealment area data not set, and the concealment flag “OFF”, and the processing returns to the concealment area setting processing of steps S22 and S23.

When the concealment flag "OFF" is confirmed in step S61, it is not necessary to cancel the concealment state, and therefore the process jumps to step S64, where the first base point P1 and the second base point P2 are released. All the hidden area data of will be cleared.

When exiting from the concealment mode, the end key MD in the state of FIG. 10 (b) or 10 (c).
It is sufficient to key in 3. In this case, the input detection is obtained in step S25 of the concealment mode process, the process proceeds to step S26, and the end process (see FIG. 9) is executed.

In this termination processing, as shown in FIG.
First, in step S71, the concealment flag is turned ON / O.
FF is confirmed. For example, as shown in FIG.
If the concealment flag is set to ON, the process proceeds to step S72 and the concealment area data memory 85
Based on the first base point (X1, Y1) and the second base point (X2, Y2) stored in the hidden area RHD1 (see FIG. 10).
(B)) is turned off and the concealment target area HD1
(See FIG. 10A).

In the following step S73, as shown in FIG. 3A, the concealment flag of the concealment area data memory 85 is reset to OFF, and further in step S74, the concealment areas of the first base point P1 and the second base point P2 are each. The data is cleared. As a result, the concealment area data memory 85 is in the concealment mode flag “ON”, the concealment area data is not set, and the concealment flag “OFF”.
At 75, the concealment mode flag is reset to OFF, and the concealment mode process ends. After that, the process returns to the main process of FIG. 4 and is restarted from step S7. In step S7, if there is no instruction to end the power supply, the process returns to step S1.

If the concealment flag "OFF" is confirmed in step S71, it is not necessary to cancel the concealment state, and therefore the process jumps to step S74, where the first base point P1 and the second base point P2 are released. All the hidden area data are cleared, and the hidden mode flag is reset to OFF in the subsequent step S75.

Now, the above-mentioned FIGS. 10 (a), (b),
In the example of (c), the concealment mode process for the handwritten character of the handwriting input unit 21 has been described, but FIGS. 11 (a), 11 (b),
As in the examples of (c) and (d), the handwriting input unit 21 can also perform a concealment mode process for a text document.

In this case, at the stage of entering the concealment mode processing, a text document can be displayed on the handwriting input section 21 as shown in FIG. 11A, as in the case of handwritten characters. When this condition is satisfied, as in the concealment mode process for handwritten characters, for example, if the character string “Mao Zedong” is concealed, the character string is operated by operating the input pen 4 after keying the setting key 22a. The concealment target area HD2 including the black dot of “Mao Zedong” is designated (see FIG. 11).
(B)) After that, the all-lighting key MD1 is keyed in to fully light up the concealment target area HD2, and the dots around the black dots of the character string "Mao Zedong" are also made into black dots to form the concealment area RHD2 (Fig. 11 (c)). In this state, if the cancel key MD2 is keyed in as shown in FIG. 11D, all the lighting of the concealed area RHD2 is cancelled, and the black dots of the character string "Mao Zedong" are left and the surrounding dots become white dots. return.

As described above, according to the first embodiment, the display data in the concealment target area is converted into the display data of the concealment area in which all the lights are turned on. Therefore, it becomes possible to easily hide only the desired display content by operating the machine so that it is difficult to assume the original display content.

Further, it is possible to alternately switch the conversion for turning on all the display data of the concealment target area to form the concealment area and the reverse conversion for canceling the all lighting and restoring the original concealment target area. Therefore, it becomes possible to easily hide only the desired display content by the operation on the machine as appropriate so that it becomes difficult to assume the original display content from the display content in the concealment target area. .

Further, since all the display data in the concealment target area is converted into valid data (black dots), it becomes difficult to assume the original display content from the concealment image in the concealment target area. As described above, only the desired display contents can be easily hidden by the operation on the machine.

Next, a second embodiment according to the present invention will be described. In the above-described first embodiment, all lighting and cancellation thereof for one concealment area are controlled. However, as in the second embodiment described below, it is possible to individually control a plurality of concealment areas. It is also possible to control all lighting and its cancellation. Since the electronic device according to the second embodiment has the appearance shown in FIG. 1 and the block configuration shown in FIG. 2 similarly to the first embodiment, the same reference numerals are used. Description will be omitted, and only differences from the first embodiment will be described below.

12 (A), (B), (C), and (D) are diagrams showing the transition of the data contents in the main part of the hidden area data memory in the second embodiment. In FIG. 80A indicates a RAM, and 860 indicates a hidden area data memory. RAM 8 in the second embodiment
0A stores a concealment mode flag (not shown), concealment area data, and a concealment flag, and a number (No.) is sequentially assigned each time the concealment area is set.

Next, the operation will be described. FIG. 13 is a flowchart illustrating a main part of the concealment mode process according to the second embodiment, FIG. 14 is a flowchart illustrating the all-lighting process, FIG. 15 is a flowchart illustrating the release process, and FIG. 16 is a resetting process. FIG. 17 is a flowchart for explaining the end processing. 18 and 19 are diagrams for explaining the operation procedure of the concealment mode process according to the second embodiment. The following operation is controlled by the CPU 6, but each operation is performed by each unit coupled to the CPU 6.

In the second embodiment, the above-mentioned first embodiment is used.
Similar to the embodiment described above, the main processing similar to that of FIG. 4 is executed, and when the processing shifts to the concealment mode processing, the concealment mode processing of FIG. 5 is executed. In the concealment mode process,
As shown in FIG. 13, the end key MD after setting the concealment area
3, all lighting key MD1, release key MD2, setting key 22
When none of the input detections of a is obtained, the coordinate input detection for the handwriting input unit 21 is added.

Therefore, the operation procedure of FIGS. 18 and 19 will be described as an example. First, at the stage of shifting to the concealment mode processing, as shown in FIG. 18A, the handwriting input unit 2
3 types of character string WR31 "Unclear", W
It is assumed that R32 “cat”, WR33 “flat”, etc. are displayed. After this, as shown in FIG.
The character strings WR31 and WR32 are the concealment target areas H, respectively.
When set to D31 and HD32, the first base point (X3, Y3) and the second base point (X4, Y4) of the concealment target area HD31 are stored as concealment area data as shown in FIG. For the concealment target area HD32, the first base point (X5, Y5) and the second base point (X6, Y6)
Is stored as hidden area data. The above processing is performed in steps S22 to S24 in the concealment mode processing of FIG.
Is executed by At this stage, since the concealment target areas HD31 and HD32 have not yet been transitioned to the concealment state (all lighting state), both the concealment flags corresponding to the respective areas have been reset to the initial setting of OFF ( See FIG. 12 (a).

After this, the process proceeds to step S25, and the input of the end key MD3 is first detected. If the input detection of the end key MD3 is not obtained, then the input detection of the all-lit key MD1 in step S27, step S2.
The input detection of the release key MD2 of 9, the input detection of the setting key 22a of step S31, and the input detection of the handwriting input unit 21 of step S81 are sequentially performed until steps S25, S27, and S29 are obtained. , S3
1, S81 is repeatedly executed.

Then, as shown in FIG. 18B, when the all-lit key MD1 is keyed by the input pen 4,
In step S27, input detection of the all-lighting key MD1 is obtained, and in the following step S28, all-lighting processing (see FIG. 1).
4) is executed.

In this full lighting process, as shown in FIG. 14, first, in step S91, all ON / OFF of the concealment flags of the set concealment areas are confirmed. At present, as shown in FIG. 1, No.
Since each of the concealment flags of No. 2 has been reset to OFF, the process proceeds to step S92, and the first base point (X3, Y stored in the concealment area data memory 860).
3) Based on the second base point (X4, Y4), the concealment target area HD31 (see FIG. 18B) is all turned on to form the concealment area RHD31 (see FIG. 18C). That is, the effective black dots that form the image "unclear" existing in the concealment target area HD31 are converted into black dots so that the surrounding dots are also effective. As a result, all the data in the concealment area RHD31 becomes uniform effective data, and the image "unclear" is concealed.
Similarly, based on the first base point (X5, Y5) and the second base point (X6, Y6) stored in the concealment area data memory 860, all the concealment target areas HD32 (see FIG. 18B) are turned on. The concealment area RHD32 (see FIG. 18C) is formed. That is, the effective black dots forming the image "cat" existing in the concealment target area HD32 are converted into the black dots so that the dots around the effective black dots are also effective.
As a result, all the data in the concealment area RHD32 becomes uniform effective data, and the image "cat" is concealed.

In the subsequent step S93, as shown in FIG. 12B, all the concealment flags of the concealment area data memory 860 are set to ON, and the concealment flag "ON" thereafter specifies the concealment area data. It is possible to confirm that the areas (concealed areas RHD31 and RHD32) to be covered are in the concealed state (all lighting state). afterwards,
The process returns to the concealment mode process of FIG. 5, and is restarted from the input detection of the end key MD3 in step S25.

Next, as shown in FIG. 18C, for the character string WR33 "flat", the first base point (X7, Y7) and the second base point (X8, Y8) are included so as to include the character string. When the coordinate input is performed in order, first in step S81
The base point (X7, Y7) is input and detected, and the process is step S.
Move to 22. In the concealment area setting process of step S22, the first base point (X7, Y7) and the second base point (X8, Y8) that is subsequently input are shown in FIG. 12B as the concealment area data. It is stored as shown. At this stage, the No. corresponding to the character string WR33 “flat” is displayed. In the concealed area of 3, the concealment flag is OFF which is the initial setting. In this way, the concealed area is determined in step S
This can be added by inputting the coordinates of the input pen 4 to the handwriting input unit 21 during the loop between 25, S27, S29, S31, and S81.

After that, as shown in FIG. 18D, when the all-lighting key MD1 is keyed by the input pen 4,
In step S27, input detection of the all-lighting key MD1 is obtained, and in the following step S28, all-lighting processing (see FIG. 1).
4) is executed.

In the next all-lighting process, in step S91, as shown in FIG. Since it is confirmed that only the concealment flag corresponding to the concealment area of No. 3 is still OFF, in the subsequent step S92, the first base point (X7,
Based on (Y7) and the second base point (X8, Y8), the concealment target area HD33 (see FIG. 18C) is fully turned on to form the concealment area RHD33 (see FIG. 18D). That is, the image “flat” existing in the concealment target area HD33
Is converted into a black dot so that the effective black dots constituting the above and surrounding dots are also effective. As a result, all the data in the concealment area RHD33 becomes uniform effective data, and the image "flat" is concealed.

In the following step S93, as shown in FIG. 12C, N in the hidden area data memory 860 is set.
o. The concealment flag of the concealment region 3 is set to ON, and by the concealment flag “ON”, it is confirmed that the region (concealment region RHD33) specified by the concealment region data is in the concealment state (all lighting state). It will be possible. After that, the process returns to the concealment mode process of FIG.
The operation is restarted from the input detection of the end key MD3 of No. 25.

Next, as shown in FIG. 19A, when the cancel key MD2 is keyed by the input pen 4, the detection of the cancel key MD2 is detected in step S29, and the canceling process is executed in step S30. (See Figure 7)
Is executed.

In this cancellation processing, as shown in FIG. 15, first, in step S101, the input detection of the hidden area to be canceled is performed. For example, FIG.
As shown in FIG. 5, when the concealment area RHD32 is touch-input with the input pen 4, it is determined which concealment area is from the coordinate position of the touch input. In this case, the concealment area RHD32 is set as the designated concealment area. Confirm. Then, in step S102, the designated hidden area RHD
ON / OFF of the 32 concealment flag is confirmed. At this point in time, as shown in FIG. 12C, the concealment flag is set to ON, so the processing moves to step S 103, and the second area stored in the concealment area data memory 85 is stored.
Based on the base point (X5, Y5) and the second base point (X6, Y6), all the lighting of the concealment area RHD32 (see FIG. 19A) is released and the concealment target area HD32 (see FIG. 19B).
Return to the state of. That is, in order to make only the black dots forming the image “cat” existing in the concealment target area HD32 effective dots, the surrounding dots are converted back to the original invalid white dots. As a result, the data in the concealment area RHD32 becomes invalid data and becomes white dots, leaving only the black dots that make up the image "cat", and the image "cat".
The concealed state of is cancelled.

In the following step S104, FIG.
As shown in FIG. Two
The concealment flag of the concealed area is reset to OFF, and the concealment flag “OFF” makes it possible to confirm that the area (concealment target area HD32) specified by the concealment area data is in the unconcealed state. Become. After that, the process returns to the concealment mode process of FIG. 5, and is restarted from the input detection of the end key MD3 in step S25.

When changing the currently set concealment area, the setting key 22a may be keyed.
In this case, the input detection is obtained in step S31 of the concealment mode process, the process proceeds to step S32, and the resetting process (see FIG. 16) is executed.

In this resetting process, as shown in FIG. 16, first, in step S111, the input of the hidden area to be reset, that is, the clearing target is detected.
For example, when the concealment area RHD 32 is touch-input with the input pen 4, which concealment area is determined from the touched coordinate position.
The HD 32 is confirmed as the designated hidden area. Subsequently, in step S112, ON / OFF of the concealment flag of the designated concealment area RHD32 is confirmed. If, for example, the concealment flag is set to ON at the present time, the process proceeds to step S113, and the concealment area data memory 8
Based on the second base point (X5, Y5) and the second base point (X6, Y6) stored in No. 6, all the lighting of the concealment area RHD32 is released and the state of the concealment target area HD32 is restored.

In the following step S114, the hidden area data memory 86 No. The concealment flag of the concealment area of 2 is OF
F is reset to F., and in the subsequent step S115, No. 2nd base point (X5, Y5), second base point (X
6, Y6) each hidden area data is cleared. As a result, the hidden area data memory 86 is stored in the No. For the concealment area of No. 2, the concealment mode flag is “ON”, the concealment area data is not set, and the concealment flag is “OFF”, and the processing returns to the concealment area setting processing of steps S22 and S23.

If the concealment flag "OFF" is confirmed in step S112, it is not necessary to cancel the concealment state, so the process jumps to step S115 to clear the concealment area data. .

Further, when exiting from the concealment mode, the end key MD3 may be keyed in. In this case, the input detection is obtained in step S25 of the concealment mode process, the process proceeds to step S26, and the end process (see FIG. 17) is executed.

In this termination processing, as shown in FIG.
First, in step S121, in the example of FIG. 1 and No. 1 The concealment flag of the concealment area of 2 is O
Since N is set to ON, the process proceeds to step S1.
22 and moves to No. 22 stored in the hidden area data memory 85. Based on the first base point (X3, Y3) and the second base point (X4, Y4) of 1, all of the concealment area RHD31 is released and the concealment target area HD31 is restored. Similarly, the No. stored in the hidden area data memory 85 is stored.
Third base point (X7, Y7), second base point (X8, Y8)
Based on the above, all lighting of the concealment area RHD33 is released and the state of the concealment target area HD33 is restored.

In the following step S123, FIG.
The hidden area data memory 86 No. 1 and N
o. Each concealment flag of No. 3 is reset to OFF, and further, in step S124, No. 1, No. Each hidden area data No. 2 is cleared. After that, step S125
, The hidden mode flag was reset to OFF,
The concealment mode process ends. After that, the process returns to the main process of FIG. 4 and is restarted from step S7. In step S7, if there is no instruction to end the power supply, the process returns to step S1.

In step S121, No.
Since the concealment flag is OFF in the concealed area of No. 2, it is not necessary to cancel the concealed state. The second hidden area starts from step S124.

As described above, according to the second embodiment, the display data in the concealment target area is converted into the display data of the concealment area in which all lighting is performed for each concealment target area (concealment area). , So that it is difficult to assume the original display content from the display content in the concealment target area,
It is possible to easily hide only the desired display contents by operating the machine.

Further, for each concealment target area (concealment area), conversion is performed for turning on all display data of the concealment target area to form a concealment area, and for canceling all lighting and restoring the original concealment target area. Since the inverse conversion can be switched alternately, only the desired display contents can be appropriately operated on the machine so that it is difficult to assume the original display contents from the display contents in the concealment target area. Can be hidden easily.

Further, since the display data in the concealment target area is converted into valid data (black dots) for each concealment target area (concealment area), the original display is performed from the concealment image in the concealment target area. Only the desired display contents can be easily hidden by operating the machine so that it is difficult to predict the contents.

Next, a third embodiment according to the present invention will be described. In the above-described first embodiment, all lighting and cancellation of the hidden area are controlled.
As in the third embodiment described below, a hint may be given by not lighting all the concealment areas and superimposing a predetermined pattern so that the concealment areas are not completely concealed. Since the electronic device according to the third embodiment has the appearance shown in FIG. 1 and the block configuration shown in FIG. 2 similarly to the first embodiment, the same reference numerals are used. Omit the description,
Only the differences from the first embodiment will be described below.

FIG. 20 is a ROM in the third embodiment.
2 is a diagram showing the memory contents of a concealment pattern memory of FIG. 3, in which 70 indicates a ROM and 72 indicates a concealment pattern memory.

In the third embodiment, the ROM 70
In addition to the program memory 71 (not shown), a hidden pattern memory 72 is stored. Concealment pattern memory 72
Includes, for example, two types of concealment patterns 72, M1 and M2.
a is set, and concealment pattern data PTN1 and PTN2 are stored in association with the concealment patterns M1 and M2. The concealment pattern M1 is for concealing the concealment target into four and concealing only two of them in diagonal positions, and the concealment pattern M2 conceals all the concealment targets as in the above-described first embodiment. It is a thing.

FIG. 21 is a RAM according to the third embodiment.
8 is a diagram showing the memory contents of the main part of FIG.
0B indicates a RAM, and 862 a hidden area data memory 8
5 is shown. This hidden area data memory 862 is
The type of concealment pattern (concealment pattern M1 or M2) is additionally stored in the concealment area data memory 86.

Next, the operation will be described. 22 is a flowchart for explaining the concealment pattern setting process according to the third embodiment, and FIGS. 23 and 24 are diagrams for explaining the operation procedure in the concealment mode process.

In the third embodiment, FIG. 23 (a) is used.
As shown in, when the concealment mode process is performed, concealment pattern keys MD4 and MD5 are additionally displayed as soft keys. The concealment pattern key MD4 is a key operated when setting the concealment pattern M1, and the concealment pattern key MD5 is a key operated when setting the concealment pattern M2.

Loop of hidden mode processing (step S2
5, S27, S29, S31, S131, S134), when the concealment pattern key MD4 is key-operated by the operation of the input pen 4 as shown in FIG. Detection is obtained. After that, the process proceeds to step S132, and it is determined whether or not the concealment pattern currently stored in the concealment area data memory 862 is “M2”. For example, as shown in FIG. 21A, when the concealment pattern is set to "M1", the concealment pattern M1 corresponding to the concealment pattern key MD4 has already been set, and therefore the process is not changed. The process returns and returns to step S25. Note that FIG.
As shown in (B), when the concealment pattern is set to "M2", the process proceeds to step S133, and the concealment pattern is changed from "M2" to "M1".
Then, the process returns to step S25.

Thereafter, similarly to the first embodiment, the operation of the function key 22b and the setting of the concealment target area HD4 (including the character string "Mao Zedong") are performed (see FIG. 23 (b)). The operation of forming the concealment area RHD4 by fully illuminating the concealment target area HD4 by operating the all-illumination key MD1. In this case, as shown in FIG. 21A, the concealment area data is stored as the first base point (X9, Y9) and the second base point (X10, Y10), and the concealment flag is O.
Since it is set to N and the concealment pattern is set to M1, the concealment pattern data PTN1 corresponding to the concealment pattern M1 is stored in the ROM 7 in the concealment area RHD4.
A process of reading the concealment pattern 0 from the concealment pattern memory 72 of 0 and superimposing the concealment pattern on the dot pattern of the character string “Mao Zedong” being displayed is executed. As a result, FIG. 23 (c)
As shown in FIG. 3, the concealment area RHD4 is divided into four sections, and two sections in the diagonal position of the concealment area RHD4 are concealed, that is, all of them are turned on.
Then, when the release key MD2 is keyed in, FIG.
As shown in (d), the concealment state is released and the original concealment target area HD4 is restored.

As shown in FIG. 24A, when the concealment pattern key MD5 is key-operated by operating the input pen 4, the key-input detection is obtained in step S134. After that, the process proceeds to step S135,
It is determined whether or not the concealment pattern currently stored in the concealment area data memory 862 is “M1”. For example, FIG.
As shown in (A), when the concealment pattern is set to "M1", the process proceeds to step S136, and the concealment pattern M corresponding to the concealment pattern key MD5.
The contents are changed to 2 and the contents are as shown in FIG. And
The process returns to step S25.

After that, as in the first embodiment, the operation of the function key 22a and the setting of the concealment target area HD4 (including the character string "Mao Zedong") are performed (see FIG. 24 (b)). The operation of forming the concealment area RHD4 by fully illuminating the concealment target area HD4 by operating the all-illumination key MD1. In this case, as shown in FIG. 21B, the concealment area data is stored as the first base point (X9, Y9) and the second base point (X10, Y10), and the concealment flag is O.
Since it is set to N and the concealment pattern is set to M2, the concealment pattern data PTN2 corresponding to the concealment pattern M2 is stored in the ROM 7 in the concealment area RHD4.
A process of reading the concealment pattern 0 from the concealment pattern memory 72 of 0 and superimposing the concealment pattern on the dot pattern of the character string “Mao Zedong” being displayed is executed. As a result, FIG. 24 (c)
As shown in FIG. 7, all of the concealment area RHD4 is turned on so as to conceal it. When the cancel key MD2 is keyed in, the concealment state is canceled and the original concealment target area HD4 is restored, as shown in FIG.

As described above, according to the third embodiment, in addition to the effect of the first embodiment described above, the concealment pattern is superimposed on the display image of the concealment target area, so that invalid data can be recorded. The original display image becomes visible from the corresponding part, and the hint can be presented by the partial original display image.

Since a desired concealment pattern is selected from a plurality of concealment patterns and overlapped with the display image of the concealment target area, invalid data can be dealt with by using a pattern according to the concealment purpose. The original display image can be seen from the part that was created, and the hint can be presented by the partial original display image.

Needless to say, it is possible to set a plurality of concealment areas in the third embodiment as in the second embodiment.

Although the hidden area is set by the input pen 4 in any of the above-described first to third embodiments, the present invention is not limited to this, and the handwriting input section 2 is set in advance.
The concealed area may be defined within 1.

[0100]

As described above, according to the invention of claim 1, the display data in an arbitrary conversion target area set by touch input is converted into predetermined display data. This makes it possible to obtain a display control device capable of easily hiding only desired display contents by operating the machine so that it is difficult to assume the original display contents from the display contents in the target area. .

According to the invention described in claim 2, in the invention described in claim 1, the display data in any conversion target area set by the touch input is converted into the predetermined data by the touch input or the original state. Since it is possible to switch alternately to restore to, it is difficult to assume the original display content from the display content in the conversion target area, and only the desired display content is appropriately changed on the machine. The display control device can be easily hidden by an operation.

According to the third aspect of the invention, all the display data in an arbitrary concealment target area set by touch input is converted into valid data. Therefore, the concealment image in the concealment target area is converted into the original data. Thus, it is possible to obtain a display control device in which only desired display contents can be easily hidden by an on-machine operation so that it is difficult to assume the display contents.

According to the invention of claim 4, in the invention of claim 3, the display image in an arbitrary concealment target area set by touch input is changed to the concealment image by touch input, or the original display image is displayed. I tried to restore it to
It is possible to obtain a display control device capable of easily hiding only desired display contents by an on-machine operation so that it is difficult to assume the original display image from the hiding image of the hiding target area. Has the effect.

According to the invention described in claim 5, in the invention described in claim 3 or 4, since the predetermined pattern is superimposed on the display image of the arbitrary concealment target area, the portion corresponding to the invalid data is first extracted. This makes it possible to obtain the display control device capable of presenting the hint by the partial original display image.

According to the invention of claim 6, in the invention of claim 3 or 4, a desired pattern is selected and superimposed on a display image of an arbitrary concealment target area. By using this pattern, the original display image can be seen from the part corresponding to the invalid data, and it is possible to obtain the display control device capable of presenting the hint by the partial original display image. Play.

[Brief description of drawings]

FIG. 1 is an external configuration diagram showing an electronic device that is an embodiment of a display control device according to the present invention.

FIG. 2 is a block diagram showing an internal configuration of the electronic device shown in FIG.

FIG. 3 is a diagram showing a memory configuration of a main part of a RAM according to the first embodiment.

FIG. 4 is a flowchart illustrating a main process according to the first embodiment.

FIG. 5 is a flowchart illustrating a concealment mode process according to the first embodiment.

FIG. 6 is a flowchart illustrating a full lighting process according to the first embodiment.

FIG. 7 is a flowchart illustrating a cancellation process according to the first embodiment.

FIG. 8 is a flowchart illustrating a resetting process according to the first embodiment.

FIG. 9 is a flowchart illustrating a termination process according to the first embodiment.

FIG. 10 is a diagram illustrating an example of an operation procedure of concealment mode processing according to the first embodiment.

FIG. 11 is a diagram illustrating another example of the operation procedure of the concealment mode process according to the first embodiment.

FIG. 12 is a diagram showing a memory configuration of a main part of a RAM according to a second embodiment.

FIG. 13 is a flowchart illustrating a main part of concealment mode processing according to the second embodiment.

FIG. 14 is a flowchart illustrating a full lighting process according to the second embodiment.

FIG. 15 is a flowchart illustrating a cancellation process according to the second embodiment.

FIG. 16 is a flowchart illustrating a resetting process according to the second embodiment.

FIG. 17 is a flowchart illustrating an end process according to the second embodiment.

FIG. 18 is a diagram illustrating an operation procedure of concealment mode processing according to the second embodiment.

FIG. 19 is a diagram illustrating an operation procedure of concealment mode processing according to the second embodiment.

FIG. 20 is a diagram showing a memory content of a hidden pattern memory of a ROM according to a third embodiment.

FIG. 21 is a diagram showing a memory content of a main part of a RAM according to the third embodiment.

FIG. 22 is a flowchart illustrating a concealment pattern setting process according to the third embodiment.

FIG. 23 is a diagram illustrating an example of an operation procedure in a concealment mode process according to the third embodiment.

FIG. 24 is a diagram illustrating another example of the operation procedure in the concealment mode processing according to the third embodiment.

[Explanation of symbols]

 1 electronic equipment 2 LCD display section 3 coordinate input section 4 input pen 5 power switch section 6 CPU 7 ROM 8 RAM 9 character recognition section 10 external input I / F 21 handwriting input section 22 key input section 22a setting key 72 concealment pattern memory 84 Concealment mode memory 85 Concealment area data memory

Claims (6)

[Claims] 1. A display control device for controlling display data for forming a display image on a display unit according to a touch input to the display unit, wherein an arbitrary conversion target area is touch-input from the display image on the display unit. Setting means for setting by the setting means, data converting means for converting the display data in the arbitrary conversion target area set by the setting means into predetermined display data, and the predetermined display data converted by the data converting means. And a display changing unit for changing the display image of the arbitrary conversion target area based on the above. 2. A data restoration unit for restoring the display data in the arbitrary conversion target area, which has been converted by the data conversion unit, to a state before the data conversion, and a data restoration unit for restoring the data. Display restoration means for restoring the display image of the arbitrary conversion target area based on the display data, and switching means for switching between data conversion by the data conversion means and restoration by the data restoration means according to a touch input. The display control device according to claim 1, further comprising: 3. A display control device for controlling display data for forming a display image on the display means according to a touch input to the display means, wherein valid data and invalid data for forming the display image on the display means. Storage means for storing display data consisting of data, setting means for setting an arbitrary concealment target area from the display image of the display means by touch input, and among the display data stored in the storage means, the setting means A discriminating unit that discriminates invalid data from the display data in the set concealment target area, a data converting unit that converts the invalid data discriminated by the discriminating unit into valid data, and is stored in the storage unit. The display image of the arbitrary conversion target area is changed to a hidden image according to the data conversion of the display data by the data conversion means. Display control apparatus comprising: the shows changing means. 4. A data restoration unit for restoring the display data in the arbitrary concealment target area, which has been converted by the data conversion unit, to a state before the data conversion, and a data restoration unit for restoring the data. Display restoring means for displaying and restoring the display image of the arbitrary concealment target area based on the display data, and switching means for switching between data conversion by the data converting means and data restoration by the data restoring means by touch input. The display control device according to claim 3, further comprising: 5. The data converting means superimposes predetermined pattern data composed of valid data and invalid data on the display data in the arbitrary concealment target area. 4. The display control device according to item 4. 6. A pattern storage unit for storing a plurality of types of pattern data composed of valid data and invalid data, and one pattern data among the plurality of types of pattern data stored in the pattern storage unit. 4. The pattern conversion unit for selecting the pattern data, wherein the data conversion unit superimposes the pattern data selected by the pattern selection unit on the display data in the arbitrary concealment target area.
Alternatively, the display control device according to item 4.