JPS62148884A - Data display device - Google Patents

Abstract

PURPOSE:To enlarge and reduce a display through extremely easy operation and to obtain superior operativity by enlarging and reducing the display according to the order of input to plural touch input elements. CONSTITUTION:When a push-button switch provided to a key input part 16 is operated, the key input part 16 outputs a key operation signal (k) to an address control part 14, and consequently a key processing program in a ROM 15 responding to the operation key is addressed to perform key processing. The ROM 15 is stored with microinstructions for controlling all operations of this electronic wrist watch and outputs microinstructions ADDR, DO, NA, and OP in parallel. An arithmetic part 21 carries out touch input processing, key input processing, timer processing, time correction processing, etc., and result data is inputted to a RAM 17 and also inputted to an address control part 14. A display part 2 consists of a RAM display driving circuit for display and a display device and makes a display by rewriting a display RAM corresponding to individual dots.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a data display device that can enlarge or reduce display data such as a single character or figure.

[Prior art and its problems] Conventionally, in a data display device such as a CRT display device used in a personal computer, which can enlarge or reduce the display of characters, figures, etc., each time the button is pressed, Two push button switches are provided, one for enlargement and one for reduction, and a method is widely adopted in which one of these push buttons is pressed several times to obtain a display of the desired size. Additionally, depending on the model, two pushbutton switches are provided to specify whether the direction of enlargement, etc. is horizontal or vertical on the display screen, and some models limit the direction of enlargement, etc. . In any case, a push button switch is provided for controlling the display size, and a method is adopted in which this button is repeatedly pressed several times.

However, there is a problem in that it is troublesome to repeatedly press the push button switch until the desired size is displayed, and the operability is poor.

Furthermore, in the case of small data display devices such as electronic wristwatches with digital display, not only is it difficult to implement due to the increase in the number of pushbutton switches, but also the pushbutton switches become smaller, making the above-mentioned operability even worse. Since it cannot be put to practical use, this display enlarger section has not been added.

[Objective of the Invention] This invention was made in view of the above-mentioned circumstances, and its purpose is to enlarge or reduce a display by a simpler operation without relying on the operation of a push button switch as described above. The object of the present invention is to provide a data display device with excellent operability.

[Summary of the Invention] The present invention uses a touch input device and has a means for enlarging/reducing the data display according to the way the user's finger or the like accesses the input panel surface, for example, by running or sliding it. The main point is

[Embodiment 1] Hereinafter, an embodiment in which the present invention 11 is applied to an electronic wristwatch with a digital display will be described. Figure 2 is an external plan view of this electronic wristwatch.On the front of the watch case 1, on the surface glass 3 covering the display section 2, transparent touch electrodes To-Ts are arranged in a 3x3 pattern as touch input elements. They are arranged in a matrix, and when a human body such as a finger touches the touch electrodes.

At this time, the contact capacitance component generated in the touch electrode is detected, and the coordinate position corresponding to the touch electrode is input. In addition,
In the unimplemented example, nine touch electrodes To=Ts are provided for inputting data for enlarging/reducing the display of the display unit 2, and are provided on the touch electrode To #T8 within the plane of the surface glass 3. By moving a finger in the vertical direction (Y-axis direction of the XY coordinate system) or left-right direction (X-axis direction of the XY coordinate system), predetermined enlargement/reduction data can be input. On the other hand, the watch case l is provided with various push button switches, and in particular, switch SM is a mode changeover switch for changing over various modes.

FIG. 1 shows an overall block circuit diagram of this electronic wristwatch, which operates under microprogram control. That is, for example, 3 oscillation circuits 11 constantly output
The 2.788KHz reference clock signal is passed through the frequency divider circuit 12.
The frequency is divided into a predetermined frequency signal by the timing generator 1.
3 is input. The timing generator 13 generates various timing pulses based on the output from the frequency dividing circuit 12 to operate various circuits. Further, a signal t of 32H7 is outputted from the frequency dividing circuit 12 to the address control section 14 to designate a predetermined address in the ROM (read only memory) 15 and start the time measurement process.

On the other hand, when a push button switch provided in the key human power section 16 is operated, a key operation signal k is outputted from the key human power section 16 and inputted to the address system [11114. The program is addressed and key processing is performed.

ROM15 stores micro-instructions that control all operations of this electronic wristwatch, including micro-instructions ADDR1no, N
A, OP is output in parallel. The microinstruction ADDR is input to a RAM (random access memory) 17 as address data, and is also input to the display section 2 and the key input section 16. Microinstruction DO is input to multiplexer 18 as a numerical code. The multiplexer 18 receives the key code from the key operator section 16 and the RAM 17.
The output data of the input capacitor 19 (to be described later) are also input, and the operands and operands are switched and outputted at various processing timings, and are provided to the temporary register 20 and the arithmetic fiB 21. In addition, temporary register 2
The data held in o is provided to the arithmetic unit 21 in synchronization with the output data of the multiplexer 18. microinstruction N
A is input to the address control unit 14 as netast address data for reading out various microinstructions necessary for the next process, and microinstruction oP is operation data input to the operation decoder 22.

The calculation unit 21 performs touch input processing and key manual processing.

Timing processing, time adjustment processing, etc. are executed, and the resulting data is input to the RAM 17 and also manually input to the address control section 14. Here, the address control section 14 is the arithmetic section 21
The address of the ROM 15 is converted by executing the judge operation at. Further, the data read into the RAM 17 is read out at each processing timing, and is input to the multiplexer 18, as well as one display section 2. input capo) 19, and is input to a touch input section 23, which will be described later.

The display section 2 consists of a display RAM (40 x 2 l bits), a display drive circuit, and a display section a1 (40 x 21 full-scale dot matrix), and displays by rewriting the display RAM corresponding to each dot. .

The operation decoder 22 decodes the microinstruction OP and outputs various control signals, which are applied to each circuit. Also,
The touch human power unit 23 operates according to signals S, c, and d from the timing generator 13, and the touch electrode To-
Contact volume generated at To, data f corresponding to '11 component
is detected on a time-minute-1,1 basis based on the data a sent from the calculation unit 21 via the RAM 17, and the input port 19
sequentially.

Next, the configuration of the touch human power section 23 will be explained based on FIG. 3. The decoder 31 is inputted with 4-bit data a output from the arithmetic unit 21 during display enlargement/reduction mode execution processing of the ROM 15. This data a sequentially specifies the time and purpose of the nine touch electrodes TO-Ta, and this data a is decoded by the decoder 31 and the signals "O" to
Converted to “8” and the corresponding transfer game) Go~
It is applied to G8 as a control signal. Note that the output of the transfer gate Go-G8 is normally maintained at high impedance, and outputs an input signal only when the corresponding control signal °0'' to '8' is applied. Further, the input side of the transfer gate co-G8 is connected to the corresponding touch electrode, and furthermore, the input side of the transfer gate co-G8 is connected to the corresponding touch electrode, and
The output side of Gs is connected together and then connected to the output side of the CMOS inverter 32. The CMOS inverter 32 includes a resistor R, an N-channel MOS transistor NT,
It is composed of P-channel MOS transistors FT, and each transistor is controlled according to a rectangular wave signal C from a timing generator 13. This CMOS
The output of the inverter 32 is connected to an inverter 33 connected in two stages in series.
．． 34, it is inputted to the AND gate 35 as a touch input determination signal e. This signal e is sent to the AND gate 35.
In addition, a rectangular wave signal C and a timing generator 1
The high frequency signal d from 3 is also input, and its output is
It is counted by the counter 36. The counted value data f of this counter 36 is supplied to an input capo 19. The contents of the naori counter 36 are cleared each time a signal from the timing generator 13 is input, and the signal is 1.
When all touch electrodes To-T8 are designated in one way, a total of 1 & value data corresponding to the contact capacitance component of each touch center pole To-T8 is 17. and written into a predetermined address area of the RAM 17 via the input port 19.

FIG. 4 shows the configuration of the RAM 17. The RAM 17 has various registers and is used for timekeeping processing, etc.
The T register is for storing the current time, and the D register is for adding notes. Furthermore, the F, n, m, and M registers are used during touch key processing. Furthermore, an X and Y register stores the coordinates (X, Y) indicating the touch electrode position of the i large contact capacitance component among the contact capacitance components corresponding to each touch electrode, and an X register stores the previously obtained coordinates. +d, Yold registers, and Co"Cs registers that store count value data of contact capacitance components corresponding to each touch electrode To-T.

Next, the operation in this embodiment will be explained.

FIG. 5 is a general flow showing an overview of the overall operation. In this general flow, program processing is stopped until there is a clock interrupt or key interrupt, and the program is placed in a standby state (HA).
LT) (step Sl), if the key 11 is entered now, the key processing program corresponding to the operated key is executed in the next step S2, and then the process returns to step Sl.0 For example, when the mode changeover switch SM is operated When the normal mode is switched to the display enlargement/reduction mode, the display enlargement/reduction is set to a flexible state. Further, when a 32 Hz signal is input from the 1 frequency divider circuit 12 to the address control section 14, the time measurement process (step S3) is started to be executed every 1/32 second. That is, the time data in the T register in the RAM 17 is read out, a predetermined operation is performed to calculate the current time data, and the time data obtained thereby is read out from the T register in the RAM 17.
is written to the T register in After such timing processing is executed, step S4.55 is executed sequentially,
After touch key processing, which will be described later, is performed, display processing in display enlargement/reduction mode is performed. When such display processing is completed, the process returns to step Sl and enters a standby state.

FIG. 6 is a flowchart showing specific details of the touch key processing described above. First, when you enter this flow,
Coordinate input processing is executed (step 511). This coordinate input processing operates according to the flowchart shown in FIG. That is, in the flow of FIG. 7, first, one line of initialization processing is performed, and the contents of the M register and the n register are cleared (step 541). This is a register in which corresponding data is stored, and the n register is a register that stores data for sequentially specifying the touch electrodes TO to T8 in a time-sharing manner.Therefore, in the next step S42, the n register is RA numerical data
It is read from M17 and applied to the touch input section 23. As a result, in the touch input section 23, the decoder 31 decodes this numerical data and outputs a signal "0". Therefore, the transfer gate GO is turned on and the touch electrode To
is selected, and as shown in FIG. 8, a signal e that rises with a delay from the fall of the rectangular wave signal C output from the timing generator 13 is input to the AND gate 35 as an output of the touch electrode TO. That is, the square wave signal C is
When input to the MOS inverter 32 and the AND gate 35, the output of the CMOS inverter 32 is connected to the touch electrode To.
The high frequency signal d is outputted from the AND gate 35 and counted by the counter 36 only while the signals C and e are both "1". This count data corresponds to the capacitance of the touch electrode To, and the Co register count data X of the RAM 17 is read through the input port 19 and the calculation section 21. After the count value data X has been taken in in this manner, the timing generator 13 outputs a signal b (see FIG. 8), thereby clearing the contents of the counter 36. The process then proceeds to step S44, where it is determined whether the count value data X exceeds the maximum value data in the M register, but initially the value of the M register is cleared, and the count value data X is larger. The value is transferred to the M register as maximum value data, and the touch electrode number specified by the contents of the n register is transferred to the m register as the touch electrode number corresponding to the maximum capacitance (step 545). In the first step 346, it is determined whether the value of the n register is "8" or not, in other words, whether the above-described operation has been performed for all nine touch electrodes To-T8. Since the value of is "0", the process advances to the next step S47.

Increment processing is performed to increment the value of the register by 1. Therefore, the value of the n register becomes rlJ, the touch electrode TI is selected this time, the process advances to step S42, and the same process as described above is executed. As a result of repeating this operation nine times in total for each touch electrode To -Ta, the corresponding touch electrode T is stored in the Co-Cs register of the RAM 17.

~A value according to the capacity of T8 is written, and a value is written to RAM17.
The maximum capacity is written into the M register, and the evening and night electrode numbers of the maximum capacity are written into the m register.

Note that the touch electrode with the maximum capacitance is the touch electrode that is actually touched, and even if a finger touches a plurality of other touch electrodes at the same time, the touch electrode with the maximum capacitance will be detected.

Next, returning to the flow shown in FIG. 6, the next process will be explained. When the coordinate input process (step 511) is completed, the process proceeds to the first step 312, where it is determined whether the value of the 1M register is "0". Now, if a human body such as a finger comes into contact with any of the touch electrodes To-78, the value of the X register will not be rOJ, but data greater than or equal to rlJ will be predicted. This step S12 is a process of determining whether or not there is a touch based on the value of the X register. 1M here
If the value of the register is not "0" and it is determined that there is a touch, the value of the 1m register, that is, the touch electrode number of the maximum capacitance, is converted into coordinates (x, y) in the XY coordinate system (step S13). These coordinates are expressed in an XY coordinate system (the right direction in FIG. 2 is the positive X direction, and the upward direction is the positive Y direction).

), each coordinate of X = 0.1, 2, Y = 0.1.2 is expressed by 1. For example, the touch electrode T+
The coordinates of T8 are (0, l) and the coordinates of touch electrode T8 are (2, l).
2). The coordinates obtained in this way are stored in RAM1.
The data are transferred to the X register and the X register in 7 (step S14.515). Therefore, the next step 516
Then, it is determined whether the value of the F register is rQJ. Here, the F register indicates "l" while the human body is touching the touch electrode, and becomes "O" after the human body is removed from the touch electrode and the specified display enlargement/reduction is set. , is “0” at the first touch, so the next step S
Proceed to step 17, set “1” in the F register, and transfer the current coordinates (x, y) taken into the X register and the X register to the X o l d register and Yo + d register in the RAM 17. The coordinate data is set as the previously detected coordinate data (steps 518 and 519).

As described above, after the coordinates of the touch electrode touched by the finger are detected, the clock timing, that is, the frequency dividing circuit 12
Every time a signal from 32H2 is output, touch key processing (step S4) is entered.

In the coordinate input process (step 5ll), the touch electrode number with the maximum capacity is detected, and this touch electrode number is set to the coordinates (x,
y) (step 513) and written to the X register,
), the process advances to step slo, and it is determined whether the F register is 10. This F register is set to "1" after detecting the coordinates of the touch electrode that the finger touches for the first time, so the touch key process (step S4) is exited and the process proceeds to the next process. When you move while touching the touch electrode, the coordinates of the 'electrode that your finger touched first are set to X0.
1d register and YOld register, and then always store the coordinates of the touch electrode that was last touched in the X register and the X register.

When the finger movement is finished and the finger is released from the touch electrode, the maximum capacity in the X register obtained by the coordinate input processing (step 5ll) executed at the next timing is
0'', and in step S12 it is detected that the finger has been removed, the process proceeds to the next step S20, and the value in the F register becomes ``0''.
1". Right now, the human body has just been removed from the touch electrode, and in this case, the F register is set to "1", so the next judgment process (step 521)
, where we subtract the X coordinate of the first contacted electrode stored in the X o + a register from the X coordinate of the last contacted electrode stored in the X register, and
The absolute value of the resulting data r l
−Xold l J and the Y coordinate of the electrode that made contact first, which is stored in the Y old register, from the Y coordinate of the electrode that made contact last, which is stored in the X register, and the resulting data absolute value rlY
-Compare with Yold N. As a result, IX-Xo
If ld l>1y-Yold l, it is detected that the finger was moved in the left-right direction (X-axis direction), and I
If Xoldl<l Y-Yo+dl, it is detected that the finger has been moved in the up-down direction (CY-axis direction).

If it is detected that the finger has been moved in the left-right direction, the process proceeds to the first step S22, where the direction of movement is detected. When moving from left to right, use the A×X register “
2" (Step 523), and if the movement is from right to left, set "°l°" (Step S'24).
), where the Ax register is a register in which the degree of expansion of the display on the display unit 2 in the X-axis direction (horizontal direction) is set.
When "l" is set, 5 dots are allocated to one character in the horizontal direction, and when '2' is set, B dots are allocated.

That is, when the finger is moved from left to right, the display is expanded in the horizontal direction, and when it is moved from right to left, it is reduced.

On the other hand, in step 521, if it is detected that the finger has been moved in the vertical direction, the process proceeds to the first step S25, where it is determined whether Y-YOId > 0, and depending on the result, the direction of movement is from above. Whether it is down or from down to up is detected. Assuming that the finger is now moved from the bottom to the top, the process proceeds to step 326, where a comparison of Y-Yold>t is performed. This is to detect whether the moving length of the finger is 1 or more. In this embodiment, as mentioned above, the Y coordinate is "O", "2" arranged from the bottom to the top. It is limited to three values, and this is the case where the finger is moved from the bottom to the top, so when Y=2 and Yold;O, that is, the finger is moved from the bottom touch input element to the top The above-mentioned YYa+++>1 is established only when moving to the touch input element.

When Y-Yo+d>1, 3 is set in the A register (step 327), where the Ay register is a register in which the degree of expansion of the display of the 1 display section 2 in the Y-axis direction (vertical direction) is set. When "1" is set, 7 dots are assigned to one character in the vertical direction, when "2", 10 dots are assigned, and when "3", 21 dots are assigned.

Therefore, in step S27, the vertical direction of the display is enlarged to the maximum.

On the other hand, in step S26, if YYoId>1 is denied, that is, move the finger from the bottom touch input element to the middle touch input element, or from the middle touch input element to the top touch input element. If the element has been moved, the value of the register A is incremented by 1 (step 528), that is, the vertical direction of the display is expanded by one rank.

Next, proceeding to step S29, it is determined whether AV>3,
When A>3, that is, when AV is "4", in this embodiment, since the upper limit of A is "3", Ay is set to '3' (step 530).

Further, in step S25, if it is detected that the finger has been moved from top to bottom, the process proceeds to the first step 531, and it is determined whether the movement length is longer than 1 by comparing lY-Yo+dl>1. be done.

When the movement length difference is longer than 1, the minimum value l is stored in the AV register, and the vertical length of the display is reduced to the shortest one (step 532).On the other hand, in step S31 When it is determined that the finger movement length is 1 or less, the value of the AV register is decremented by 1 (step 533), that is, the vertical length of the display is reduced by one rank smaller. 0 Next, it is determined whether the value of the AV register is "On" (step 53).
4) If it is "0", set the minimum value "l" in the Ay register (step 535).

In this embodiment, the minimum value of A is ensured.

When such touch key processing is performed, the contents of the F register are cleared (step 535).
Thereafter, in step S5 of FIG. 5, the display is set to register A, and enlargement/reduction display processing is performed according to the value of the AV register. This is done by rewriting the display RAM of the display section 2.

FIG. 9 is a diagram showing specific contents of the display state when the above-described display enlargement/reduction processing is executed in accordance with the touch force. In Fig. 9, the arrow indicates the direction of movement of the finger on the touch human element matrix and the direction of the diagram showing the display state changed accordingly.When the mode changeover switch SM is operated to switch to the display enlargement/reduction mode. Assume that the display state of is as shown in the same figure (b). In this case, the value of the AX register is "1" and the value of the Ay register is "
2", and each character is assigned 5 dots in the horizontal direction and IO dots in the vertical direction. In this state FH, if you move your finger to the right along the touch input element matrix, (e) The display is enlarged approximately twice in the horizontal direction as shown in the image below.At this time, the values of both the Ax and AV registers become "2",
Each character is assigned 8 dots horizontally and 10 dots vertically. At this time, the enlargement is performed using the Y-axis as a reference, and important data near the Y-axis is enlarged and displayed, but portions away from the Y-axis are not displayed. If you move your finger to the left in this state (e), the 1 display will be reduced in size and return to b). Furthermore, when the finger is moved upward in the state shown in (b), the vertical direction is enlarged twice as much as shown in (a). At this time, the values of the A and l registers do not change and are "1", but the value of the AV register increases to "3", and each character is allocated 5 dots in the horizontal direction and 21 dots in the vertical direction. Note that at this time, the enlargement is performed based on the X vehicle, and date displays that are far from the X axis are no longer displayed. In this state (a), if the finger is moved briefly downward, the state returns to (b), but if the finger is moved long from the upper end of the matrix surface to the lower end, the state is directly reduced to the state (C).

At this time, the values of both the Ay and Ay registers are l, and each character has 5 dots in the horizontal direction and 7 dots in the vertical direction; L, 1
%L/, it has been written. Similarly, by moving your finger on the touch input element matrix surface, you can change the display (
Enlargement or reduction is performed to each size of a) to (f). In other words, when you move your finger to the right, the displayed characters will be stretched to the right, and when you move your finger to the left, the characters will be pushed toward the left side of the finger. When moving upwards, the letters are stretched upwards, and when moving the finger downwards, the letters are depressed, and the changes are large and small depending on the amount of vertical movement, which matches the human sense. Enlargement or reduction is performed.

As described above, in this embodiment, the display is enlarged or reduced according to how the user slides on the input panel surface of the touch input device. The operability is significantly better than that of
In addition, the touch electrode "re-" ra, which is an input element, is made transparent, and the surface glass 3 of the digital display electronic wristwatch is
Since it is placed at the top, it is very convenient to be able to zoom in and out while looking at one display, and it does not require any special space for arranging touch input elements, which is extremely advantageous in terms of implementation.
This has already made it difficult to implement an increase in the number of pushbutton switches. It becomes possible to add display enlargement/reduction functions to small data display devices such as electronic wristwatches with digital display. Furthermore, since the direction of movement of the finger on the surface glass 3 on which the touch human element is arranged matches the direction of enlargement/reduction of the display, the operation can be grasped intuitively, which is extremely convenient.

Note that this invention is not limited to the above-mentioned embodiments, and can be modified and applied in various ways without departing from the scope of this invention. The touch input device may be a touch input device such as a type, magnetic type, or pressure sensitive type. Furthermore, in this example, the touch input element is disposed on the display surface, but the touch input element is not limited to this, and the touch input element may be disposed on a substrate other than the display surface to form a tablet. The access method is "slide" in the above embodiment, which is the most preferable method, but instead, by touching two points on the panel surface, the first input position and the next input position can be accessed by touching two points on the panel surface. From there, the image may be reduced or enlarged accordingly, or the image may be enlarged or reduced in accordance with an appropriate access method for pi that can be distinguished by the user.

[9X Brightness Effect J As described in detail above, this invention is extremely effective because it is possible to enlarge or reduce one display according to the order of input to a plurality of touch input elements.

The display can be enlarged or reduced with simple operations, providing excellent operability.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention; FIG. 1 is a block circuit diagram showing the circuit configuration of a digital display electronic wrist watch to which the invention is applied; FIG. 2 is an external view of the watch; Figure 3 is a circuit diagram of the touch input section shown in Figure 1;
FIG. 4 is a partial configuration diagram of the RAM shown in FIG. 1, FIG. 5 is a general flowchart explaining the overall operation, and FIG.
The figure is a flowchart explaining the specific content of the touch key processing (step S4) in FIG. 5, FIG. 7 is a flowchart explaining the specific content of the coordinate input processing (step 511) in FIG. 6, and FIG. FIG. 9 is a time chart showing the operation of the touch input section, and is a diagram showing the enlargement/reduction state S of the display accompanying the touch input. l...Watch case, 2...Display section, 3
...Surface glass, 15...ROM, 1
7...RAM, 21... Arithmetic unit, 22
...Operation decoder, 23...
・Touch input section, To-"re...Touch electrode. Patent applicant Casio Computer Co., Ltd. Figure 4 Figure 5 Figure 9

Claims (2)

[Claims] (1) a display device, a plurality of touch input elements, and a detection means for detecting the order of input to the plurality of touch input elements;
A data display device comprising: means for enlarging or reducing data displayed on the display device according to the input order detected by the detecting means. (2) The data display device according to claim 1, characterized in that the touch input element is disposed overlapping the display device.